JP2011115763A - Coating system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To facilitate the operation management of an automotive body coating system. <P>SOLUTION: Carrier machine moving means 29, 30, 31 include a constitution that enables an individual adjustment in a moving velocity of a carrier machine 22. The carrier machine 22 is equipped with a body operating means 32, 61 allowing the automotive body W to move and operate to the carrier machine 22. The carrier machine moving means 29, 30, 31 and the body operating means 32, 61 are controlled based on movement zone information i of the carrier machine 22 moving sequentially over a plurality of process divisions 1-18 and body kind information b, by which an integrated control means CC moving and operating the carried automotive bodies W by a synthetic movement pattern P(r, v, θ) set per process division and per body kind is provided. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a coating system, and more particularly, a plurality of processing units or a plurality of processing units in a pre-processing step unit in a state where there is a gap between a preceding transporting device and a succeeding transporting device. In the subsequent painting process section, there is provided a transporter moving means that sequentially moves across a plurality of processing sections, and the transported automobile body passes through the transporting process by moving the transporter by the transporter moving means. The present invention relates to a coating system in which a predetermined processing is performed on a transporting automobile body in the passing process in the processing section.

  Conventionally, this type of coating system is provided with a conveyor device that moves a plurality of hanger type conveyors and cart type conveyors at a predetermined constant interval over a plurality of processing units in a pretreatment process unit and a coating process unit. The hanger-type transporter or cart-type transporter that is moved by suspending or holding the automobile body that is the object to be coated is sequentially transported to each processing unit and passed through these processing units. A predetermined process was applied to the car body in the process (see Patent Document 1, especially paragraphs 0008 to 0010 and FIGS. 1 to 3).

JP-A-6-228794

  However, in the conventional coating system as described above, each processing vehicle unit moves each of the transport vehicle bodies only in the same movement form (in other words, the same movement pattern) in which the movement route and the movement speed are constant. Therefore, when car bodies with different body types are mixed and processed to each processing part in a mixed state for high-mix low-volume production, etc. Due to the inability to perform proper processing, the processing quality and processing efficiency of the automobile body (and thus the painting quality and production efficiency of the finished automobile body as a final product) are limited to a low level, or various transports are performed. There was a problem that could easily cause trouble and processing trouble.

  In addition, for this problem, the processing section length of each processing unit is increased to increase the processing capability, thereby ensuring high processing quality and processing efficiency. Although it may be possible to deal with different cases, if the length of the processing section of each processing section is increased, there will be a problem of increasing the size of the coating equipment configuration in the coating system, while the body type differs depending on the operation on the processing equipment side. If it corresponds, the various processing apparatuses with which each processing part is equipped will become complicated, and the problem that the whole coating system will become complicated will arise.

  In view of this situation, the main problem of the present invention is that the above-described operation of the coating system is facilitated by adopting a rational transport mode and processing mode for transporting and processing the automobile body to each processing unit. This is to effectively solve such problems.

The first characteristic configuration of the present invention relates to a coating system,
A plurality of processing units in a pre-processing process unit or a plurality of processing units in a subsequent coating process unit with a transporter holding an automobile body that is an object to be coated in a state where there is a gap between the preceding transporting device and the subsequent transporting device. A transporter moving means is provided for moving sequentially and moving,
As the vehicle body is transferred by the movement of the transfer device by the transfer device moving means, the processing unit in which the transfer vehicle body is in a passing process is configured to perform a predetermined process on the transferred vehicle body in the passing process. A painting system,
While making the said conveyance machine moving means the structure which can adjust the moving speed separately about each of the said conveyance machine,
Equipped with body operating means for moving the automobile body held by the transporter relative to the transporter in each of the transporters,
As a control means that supervises a plurality of the transfer machines,
Based on the information on the movement position of each of the transfer machines that are sequentially moved across the plurality of processing units and the information on the body type of the transfer vehicle body held by each transfer machine, the transfer machine moving means and each transfer machine Providing a general control means for moving the transport vehicle body held by each transport machine in accordance with the combined movement pattern set for each of the processing units and for each body type It is in a certain point.

  In other words, according to this configuration, since the transport vehicle body held by each transport machine is moved in each processing unit with the set combined movement pattern for each processing unit and for each body type, the processing unit and the body type are combined. By setting the movement pattern (that is, the movement pattern formed by combining the movement of the transfer machine and the movement operation of the transfer car body with respect to the transfer machine), the transfer car body held by the transfer machine is basically set in each processing unit. While moving in a movement mode suitable for processing in the processing unit (that is, a basic movement mode for each processing unit), the movement mode for each body type according to the body type (in short, the above processing) The basic movement form for each part can be finely adjusted according to the body type), and the transport car body held by each carrier can be processed appropriately according to the body type. That.

  Therefore, compared to the above-mentioned conventional coating system, it is possible to effectively improve the processing quality and processing efficiency in each processing section regardless of the mixing of body types, as well as transportation troubles caused by mixing of body types. Processing troubles can be effectively avoided.

  In addition, by effectively improving the processing quality and processing efficiency in this way, it becomes possible to shorten the processing section length of each processing unit and reduce the size of the coating equipment configuration in the coating system. Since the transport car body held by the transport machine is moved in a movement mode according to the body type, the coating system is more complicated than the handling type on the processing unit side in each processing unit. It can be effectively avoided.

  In addition, according to this configuration, since it is only necessary to set the combined movement pattern for each processing unit and each body type for the overall control means that controls a plurality of conveyors on a control basis, for example, for each conveyor Compared with the method of directly setting the combined movement pattern for each processing unit and each body type for each of the individual control means installed, the operation management of the coating system can be facilitated.

  In addition, the composite movement pattern set for each processing unit and each body type is checked, and a transport trouble such as interference between the preceding transport car body and the subsequent transport car body is predicted. It is also possible to simplify the operation management of the coating system by providing the overall control means with a function for automatically avoiding the above.

  In order to obtain the movement position information of each conveyance machine in the implementation of this configuration, the method that can be obtained based on the detection information of the conveyance machine detection sensors juxtaposed along the movement path of the conveyance machine and the movement distance of each conveyance machine are determined. Various methods such as a method obtained based on the measurement information of the measuring means to measure or a method obtained based on the imaging information of the monitoring camera can be adopted.

  In addition, body type information can also be obtained by detecting the body shape at the stage of holding the car body on the conveyor or in the vicinity of it, or by reading the tag attached to each car body, or producing a painting system. Various systems such as a system obtained as a part of production plan information from the management apparatus can be adopted.

  For the transporter moving means that moves each transporter across multiple processing units in a state where individual adjustment of the moving speed is possible for each of the transporters, the self-propelled means that can adjust the self-running speed is moved to the transporter. There are various methods such as a system that equips each conveyor with the body operating means as a means, or a system in which the conveyor feeding means capable of adjusting the feeding speed of the conveyor is juxtaposed along the movement path of the conveyor as a conveyor moving means. A transporter moving means of a method or structure can be adopted.

  Among the pattern components of the combined movement pattern, the pattern components that involve the transfer device moving means include transfer device movement, such as changing the transfer speed of the transfer device, switching forward / reverse, pause, or repetitive forward / backward switching. Various pattern components can be adopted as long as the means can be executed.

  Also, among the pattern components of the combined movement pattern, the pattern components that involve the body movement means of each transporter can be executed by the body movement means such as raising / lowering, tilting, swinging, and lateral movement of the automobile body. If it is a thing, a various pattern component can be employ | adopted.

  In addition, various types and structures of body operating means equipped in each transport machine can be adopted.

  In order to set the combined movement pattern for each processing unit and each body type in the overall control unit, the processing unit can be set by experimentation, calculation, test operation of each processing unit, simulation of processing in each processing unit by the simulation unit, or the like. It is only necessary to select an optimal composite movement pattern for each body type and each body type and set the selected optimal composite movement pattern in the overall control means.

  Also, at this time, a function for automatically selecting an optimal composite movement pattern according to a predetermined selection criterion is provided in the simulation means, or a function for automatically setting the selected optimal composite movement pattern for the overall control means. If the simulation means or the overall control means itself is provided, the operation management of the coating system can be further facilitated.

  For communication between the overall control means and each transporter, a method in which each transporter receives a control command signal from the overall control means through a communication terminal extending or juxtaposed along the movement path of the transporter, Various communication methods such as various wireless communication methods can be employed.

  Car body is a transport form that transports the front part of the body (front part) toward the lower side in the transport direction, or a transport form that transports the rear part (rear part) toward the lower side of the transport direction, or those Various transport forms such as mixed forms can be adopted, but “front-lowering (= back-up)” described later in this document refers to an inclined state in which the lower side in the transport direction of the automobile body is lower, “(Upward)” means an inclined state in which the upper side in the transport direction in the automobile body is low.

The second feature configuration of the present invention specifies an embodiment suitable for the implementation of the first feature configuration.
Equipped with a relay control means for controlling the body operation means equipped in each of the transport machines,
The overall control means is configured to give a control command to the relay control means of each transport machine for moving the transport vehicle body held by each transport machine with the set combined movement pattern for each processing unit and each body type. West,
The relay control means of each conveyor is configured to control the body operating means of each conveyor according to the control command given from the overall control means.

  In other words, according to this configuration, in order to move the transported automobile body held by each transporter with the set combined movement pattern for each processing unit and each body type, each transporter is operated according to the control command given from the overall control unit. Since the relay control means controls the body operating means of each transport machine, in other words, it is possible to adopt a control form in which the overall control means is assisted by the relay control means of each transport machine. First, compared to adopting a system in which the transporter moving means and the body operation means of each transporter are directly controlled by the overall control means, the overall control means reduces the burden of the overall control means and the control system operation performance of the coating system. In addition, the communication means between the overall control means and each conveyor can be simplified.

  In addition, when the self-propelled means capable of adjusting the self-propelled speed as the conveyer moving means is equipped in each of the conveyers together with the body operating means, the relay control means of each conveyer performs each conveyance according to the control command from the overall control means. You may make it control the self-propelled means and body operation | movement means of a machine.

  Further, in the implementation of the above configuration, the method is not limited to the method of storing the set composite movement pattern for each processing unit and each body type only in the overall control unit, but for each processing unit and for each body type by input from the overall control unit. Is stored in the relay control means of each transport machine, and the body operation means (and the self-running means) of each transport machine is controlled by the relay control means of each transport machine in accordance with a control command from the overall control means. When controlling, it is possible to adopt a method of controlling the relay control means based on the set synthesis movement pattern for each processing unit and each body type stored in the relay control means itself. The burden can be further reduced, and the communication means between the overall control means and each conveyor can be further simplified.

The third feature configuration of the present invention specifies an embodiment suitable for the implementation of the first or second feature configuration.
At least one processing unit among the plurality of processing units is an immersion type processing unit that immerses the transported automobile body held in the transporter in a processing liquid in a processing tank,
As the set synthetic movement pattern for each processing unit and each body type when the transporter is located in this immersion type processing unit,
A tank entering step of lowering the transport vehicle body held by the transporter and immersing the transport vehicle body in the treatment liquid in the treatment tank, and subsequently, in the tank for moving the conveyance automobile body in the treatment liquid in the treatment tank. Each step of the advancing step, followed by the unloading step of raising the transport vehicle body and pulling it up from the treatment liquid in the treatment tank, and subsequently the unloading step of unloading the transport vehicle body from the immersion processing unit A movement path change pattern, a movement speed change pattern, and a movement posture change pattern for each body type of the transport vehicle body during and between the processes are set in the overall control means.

  That is, in this configuration, the movement path change pattern and the movement speed pattern for each body type set in the overall control means as the set combined movement pattern for each processing unit and each body type when the transporter is positioned in the immersion type processing unit, With the moving posture change pattern, the transporting automobile body held by each transporter is moved and operated over the above-described tank entry process, tank advancement process, tank exit process, and unloading process.

  Here, the set movement path change pattern basically causes the transport vehicle body held by the transporter to enter the processing tank through the forward-lowering movement path and to leave the processing tank through the forward-upward movement path. The set movement speed change pattern is basically to move the automobile body held by the transporter at a speed suitable for traveling in and out of the tank and in the liquid. Specifically, the transporting vehicle body held by the transporter is made to enter the treatment tank in an appropriate forward-downward tilt posture, and is taken out from the treatment tank in an appropriate forward-upward tilt posture.

  Therefore, by setting these three change patterns for each body type, while moving the transport vehicle body held by the transport machine in a movement mode suitable for the immersion treatment in the processing liquid in the immersion processing unit, The movement type for each body type according to the body type (for example, the body movement path inclination angle at the time of entry / exit tank, the inclination angle of the body movement posture, or the body movement speed at the time of entry / exit tank or progression in liquid) By adopting different movement modes depending on the species, it is possible to perform an appropriate dipping treatment according to the body type on the transported automobile body held by each transporter.

  As a result, for example, depending on the body type, a large buoyancy is generated in the transport vehicle body when entering the tank, and the transport vehicle body is detached from the transport machine, or bubbles that are caught in the local part of the transport vehicle body when entering the tank are escaped. Cause a processing failure due to the absence of it, or the movement speed when entering the tank or proceeding in the liquid is inappropriate, resulting in processing unevenness, and a large amount of processing liquid is transported along with the car body when leaving the tank. It is possible to effectively avoid various inconveniences caused by the body type in the dipping process, such as being taken out and further being not easily removed from the bag structure portion of the transport automobile body.

  Moreover, the processing tank can be reduced in size while maintaining high processing quality and processing efficiency in the immersion type processing unit by adopting a rational entry / exit tank configuration corresponding to the body type.

  In the implementation of this configuration, the movement path of the transport vehicle body in each process of the tank entry process, the tank advance process, the tank exit process, and the carry-out process is changed to a constant path for each body type and process in each process. The movement path change pattern to be maintained (in other words, the movement path change pattern that changes the movement path only between processes) is set, and the vehicle body movement path for each body type in each process also changes during each process. A movement path change pattern to be set may be set.

  In addition, the movement speed change pattern that maintains the movement speed of the transport vehicle body in each process of the tank entry process, the in-tank process, the exit tank process, and the unloading process at a constant speed for each body type and each process in each process (reverse language) In this way, not only is a movement speed change pattern that changes the movement speed only between processes set, but a movement speed change pattern that changes the vehicle body movement speed for each body type in each process even during each process is set. May be.

  Similarly, the movement attitude change pattern (the movement attitude change pattern for maintaining the movement attitude of the transport vehicle body in each process of the tank entry process, the tank advance process, the tank exit process, and the carry-out process in a constant attitude for each body type and each process in each process) In other words, not only setting a movement posture change pattern that changes the movement posture only between processes, but also changing the vehicle body movement posture for each body type in each process even in the middle of each process (in some cases iteratively changes) ) A movement posture change pattern to be set may be set.

The fourth feature configuration of the present invention specifies an embodiment suitable for the implementation of the third feature configuration.
As the movement path change pattern and the movement posture change pattern for each body type set for the immersion processing unit,
A movement path change pattern and a movement attitude change pattern in which the transport vehicle body held by the transporter in the in-tank progressing process progresses in the liquid in a horizontal movement path and in a forward downward inclination posture or a forward upward inclination posture for each body type. Is set in the overall control means.

  In other words, when the transport vehicle body is moved in a state where it is immersed in the processing liquid in the processing tank, if the movement posture of the transport car body is adjusted, the cross-sectional area through which the processing liquid passes around the transport car body in the processing tank is adjusted. The relative speed of the processing liquid with respect to the transport vehicle body around the transport vehicle body can be adjusted by adjusting the passage cross-sectional area.

  Therefore, as described above, the movement path change pattern and the movement attitude in the in-tank advancement process so that the vehicle body is advanced in the liquid with the horizontal movement path and the front-down inclination posture or the front-up inclination posture for each body type as described above. When the change pattern is set, the transport vehicle body is moved in the liquid in the horizontal movement path and in the horizontal movement posture (in other words, in the liquid posture in the movement posture along the movement path). The relative speed of the treatment liquid can be effectively increased regardless of the body type.

  In addition, by increasing the relative speed of the processing liquid with respect to the transport vehicle body in this way, it is possible to effectively prevent foreign matter from adhering to the surface of the transport vehicle body, or to generate bubbles and generated heat from the vicinity of the surface of the transport vehicle body. This makes it possible to effectively eliminate any type of body in the immersion treatment in the immersion type treatment unit, and this makes it possible to obtain an immersion type treatment unit. The processing section length can be further shortened.

  In the implementation of this configuration, the treatment tank is not limited to a tank that allows the treatment liquid to flow in the direction opposite to the traveling direction of the transport vehicle body, but a treatment liquid that circulates and flows in the treatment tank, or a treatment liquid. Any type of tank may be used, such as a tank for storing the liquid in a staying state.

The fifth characteristic configuration of the present invention specifies an embodiment suitable for implementation of any of the first to fourth characteristic configurations,
At least one processing unit among the plurality of processing units is a spray type processing unit that sprays a jet fluid by a jetting unit on a transport vehicle body held by the transport machine,
As the set composite movement pattern for each processing unit and each body type when the transporter is located in this spray type processing unit,
A carrying-in process of carrying the transported automobile body held by the transporter into the spraying treatment area of the ejected fluid by the ejection means, followed by an intra-regional progressing process in which the transporting automobile body is advanced and moved within the spraying treatment area, and The movement path change pattern, the movement speed change pattern, and the movement posture change pattern for each body type of the conveyance automobile body during and between the steps of carrying out the conveyance automobile body from the spray processing area. The central control means is set.

  That is, in this configuration, the movement path change pattern and the movement speed pattern for each body type set in the overall control means as the set combined movement pattern for each processing unit and each body type when the transporter is located in the spray type processing unit, With the movement posture change pattern, the transporting automobile body held by the transporter is moved and moved through the above-described carrying-in process, in-zone progressing process, and unloading process.

  Therefore, by setting these three change patterns for each body type, in the spray-type processing unit, the transport vehicle body held by the transporter is basically moved in a movement mode suitable for the spraying process of the ejected fluid by the spraying means. However, the movement mode for each body type according to the body type (for example, the movement mode in which the height of the body movement path, the inclination angle of the body movement posture, or the body movement speed during the spraying process is varied depending on the body type. ), An appropriate spraying process according to the body type can be applied to the transport vehicle body held by each transport machine.

  As a result, for example, depending on the body type, the spraying form of the ejected fluid becomes inappropriate and processing unevenness or insufficient processing occurs, or the sprayed liquid is transported in a state where it remains in a large amount in the bag structure of the transporting automobile body. Effectively avoids various inconveniences caused by body types in spraying processes, such as the car body being carried out of the spraying process area and the residual liquid not being easily removed from the bag structure of the transporting car body. can do.

  In addition, the spraying means can be simplified compared with the action on the side of the spraying means on the processing apparatus side for the difference in the body type, and a rational spraying processing form corresponding to the body type can be provided. By adopting, the processing section length of the spray processing unit can be shortened while maintaining high processing quality and processing efficiency in the spray processing unit.

  In the implementation of this configuration, the movement path change pattern that keeps the movement path of the transport vehicle body in each of the carry-in process, the in-zone progress process, and the unload process in a constant movement path for each body type and each process in each process. (In other words, not only to set the movement path change pattern that changes the movement path between processes), but also to change the car body movement path for each body type in each process even if the height change and angle change during each process. A movement path change pattern to be set may be set.

  In addition, the moving speed change pattern that maintains the moving speed of the transport vehicle body in each process of the carry-in process, the region progress process, and the unload process at a constant speed for each body type and each process in each process (in other words, between processes The movement speed change pattern that changes the vehicle body movement speed for each body type in each process may be set in the middle of each process.

  Similarly, a movement posture change pattern (in other words, a movement posture change pattern that keeps the movement posture of the transport vehicle body in each step of the carry-in process, the intra-regional progress process, and the transport process in each process in a constant posture for each body type and each process. Not only to set a movement posture change pattern that changes the movement posture only between processes), but also to change the movement posture of the car body movement posture for each body type in each process even in the middle of each process (repetitive changes in some cases) A pattern may be set.

The sixth feature configuration of the present invention specifies an embodiment suitable for the implementation of the fifth feature configuration.
As a movement path change pattern, a movement speed change pattern, and a movement posture change pattern for each body type set for the spray type processing unit,
The distance between the spraying means and the sprayed part on the transporting vehicle body to which the fluid ejected by the spraying means is sprayed with respect to the traveling movement of the transporting vehicle body in the spraying treatment area, or the spraying by the spraying means A movement path change pattern, a movement speed change pattern, and a movement posture change pattern in which the fluid is sprayed to a specific sprayed part on the transport vehicle body longer in time than the other parts are set in the overall control means. In the point.

  In other words, in the above-described conventional coating system, a spray type processing unit that sprays the ejected fluid onto the conveying automobile body (for example, a flushing unit that sprays cleaning water, a draining unit that sprays air for draining or predrying, a predrying unit, etc.) , The distance (spraying distance) between the spraying means and the sprayed part on the transporting automobile body to which the fluid ejected by the spraying means is blown in accordance with the progress of the transporting car body in the spraying treatment area in accordance with the shape of the car body. In addition, the direction of the sprayed portion on the conveying automobile body (the spraying direction) with respect to the direction of fluid ejection from the spraying means also changes sequentially.

  In addition, due to the difference in the car body shape for each body type, the form of change in the spray distance and spray direction will be further different.

  On the other hand, according to the above configuration, by the setting of the three change patterns, the jetting means and the jetted fluid by the jetting means are sprayed with respect to the in-region progression in the spraying treatment area of the transport vehicle body held by the transporter. The distance (spraying distance) with the sprayed part on the transported automobile body is kept constant, or the ejected fluid by the ejection means is longer in time than the other parts with respect to the specific sprayed part on the transported vehicle body Because it is sprayed, regardless of the body type, the ejected fluid can be sprayed uniformly on the sprayed part on the transport vehicle body, or the other part on the specific sprayed part on the transport vehicle body The spraying action can be applied for a longer period of time than the above, whereby a higher processing quality can be obtained regardless of the body type in the spraying process in the spray type processing unit. It is also possible to further shorten the processing period length of spray type processing unit in that.

  In the implementation of this configuration, the spray distance on the transport vehicle body is kept constant with respect to the direction of fluid ejection from the spray means while keeping the spray distance, which is the distance between the spray means and the sprayed portion on the transport vehicle body, constant. If the above three change patterns are set so as to maintain the spray orientation state in which the section is in the vertical posture, the processing quality and processing efficiency in the spray processing section can be further effectively improved.

  In addition, the fluid ejected by the ejecting means is sprayed to the specific sprayed part on the transport automobile body longer in time than the other parts, and at that time, the specific sprayed part on the transport automobile body acts on the ejecting means. By setting the three change patterns so as to approach each other, the processing quality and the processing efficiency in the spray processing unit can be further effectively improved.

  The part to be sprayed and the specific sprayed part on the transport vehicle body that sprays the ejected fluid by the jetting means are relatively reversely moved on the transport vehicle body as the transport vehicle body moves forward in the spray treatment area, Alternatively, it may be any fixed part (for example, a bag structure part or a gap structure part) on the transport vehicle body.

The seventh characteristic configuration of the present invention specifies an embodiment suitable for the implementation of any of the first to sixth characteristic configurations,
As the set composition movement pattern for each processing unit and each body type,
Among the plurality of processing units, the specific processing unit moves the transported vehicle body in a state where the distance between the preceding transported vehicle body held by the preceding transporter and the subsequent transported vehicle body held by the subsequent transporter is enlarged or reduced. The combined movement pattern to be performed is set in the overall control means.

  In other words, in the above-described conventional coating system, when the interval between the preceding transport vehicle body and the subsequent transport vehicle body is to be increased or decreased, the first hanger type or carriage that moves at the first predetermined interval by the main conveyor device. It is necessary to transfer the transport vehicle body from the transporter of the type to the second hanger type or cart type transporter that moves at the second predetermined interval by the sub-conveyor device.

  On the other hand, according to the above configuration, by setting the combined movement pattern for each processing unit and each body type, the preceding transport vehicle body held by the preceding transport device and the subsequent transport vehicle body held by the subsequent transport device in the specific processing unit The interval can be enlarged or reduced, and the interval change can be executed in a modified form for each body type according to the body type of the preceding transport vehicle body and the body type of the subsequent transport vehicle body. Compared to changing the body interval using the sub-conveyor device as described above, the configuration of the coating system can be simplified, and the operation management of the coating system can be further facilitated.

  If the body interval is reduced in the specific processing unit, the processing section length of the specific processing unit can be shortened by the reduced amount. On the other hand, if the body interval is enlarged in the specific processing unit, the enlargement is advanced. It is possible to suppress the mutual interference between the process for the transport vehicle body and the process for the subsequent transport vehicle body, thereby improving the processing quality in the specific processing unit.

  In the implementation of this configuration, when the body interval is increased in the specific processing unit, the body interval is reduced in the other processing units by the increased amount to avoid an increase in the size of the coating equipment configuration in the coating system. Is desirable.

The eighth characteristic configuration of the present invention specifies a preferred embodiment in the implementation of any of the first to seventh characteristic configurations.
There is provided a simulating means for simulating a processing process or a processing result of the processing in the processing unit when each of a plurality of types of the combined movement patterns is adopted for each of a plurality of automobile bodies having different body types. .

  In other words, according to this configuration, it is possible to easily select an optimal composite movement pattern for each body type in the processing unit to be simulated based on the simulation result by the simulation means. The operation management can be made easier.

  And, in the corresponding processing unit in the actual operation of the coating system, by setting in the overall control means as the setting combined movement pattern of the corresponding processing unit for the simulation target the optimal combined movement pattern for each body type selected in this way, While the transport vehicle body held by the transporter is basically moved in a travel mode suitable for processing in the corresponding processing unit, the transport vehicle body is individually moved according to the body type according to the body type. Appropriate treatment depending on the body type can be achieved more reliably.

  In the implementation of this configuration, it is desirable that the simulation means can simulate all the processing units in the coating system. However, depending on the case, only the main processing unit or a specific processing unit can be simulated. It may be possible.

  In addition, the simulation means is provided with a function of automatically selecting an optimal composite movement pattern for each processing unit and each body type according to a predetermined selection criterion, or, alternatively, the optimum for each selected processing unit and each body type. If the simulation means or the overall control means itself is provided with a function for automatically setting the combined movement pattern for the overall control means, the operation management of the coating system can be further facilitated.

Overall configuration diagram of painting system (especially pre-treatment process part) Overall configuration of painting system (especially painting process department) Front part of the conveyor Perspective view of conveyor Enlarged front view of the conveyor Enlarged side view of the main parts of the conveyor Side view showing the processing mode in the immersion processing section Side view showing the processing mode in the central spray processing unit The side view which similarly shows the processing form in the central spray type processing part Side view showing a processing mode in another spray type processing unit

  1 and 2 show a coating system related to an electrodeposition coating facility for an automobile body. In this electrodeposition coating facility, as a plurality of processing sections in a pretreatment process section, a hot water washing section 1, a preliminary degreasing section 2, and a degreasing process are shown. Part 3, first degreasing water washing part 4, second degreasing water washing part 5, surface adjustment part 6, chemical conversion treatment part 7, first chemical conversion water washing part 8, second chemical conversion water washing part 9, pretreatment pure water water washing part 10, They are arranged in that order in the transport direction of the automobile body W that is the object to be coated.

  In addition, as a plurality of processing units in the coating process unit following the pretreatment process unit, the electrodeposition processing unit 11, the first UF water washing unit 12, the second UF water washing unit 13, the third UF water washing unit 14, the first RO water washing unit 15, the first The 2RO water washing unit 16, the electrodeposited pure water washing unit 17, and the air blow unit 18 are arranged in that order in the conveying direction of the automobile body W (hereinafter sometimes abbreviated as a body).

  Among each processing unit, the degreasing processing unit 3 and the chemical conversion processing unit 7 in the preprocessing process unit, and the electrodeposition processing unit 11, the second UF water washing unit 13, and the first RO water washing unit 15 in the coating process unit are processed as main processing forms. It is an immersion type processing unit that immerses the transport body W in the processing liquid L in the tank T. In the degreasing processing unit 3 and the chemical conversion processing unit 7, the transport body W is degreased in the degreasing tank T and the chemical conversion tank T. The surface of the transport body W is subjected to a degreasing process or a chemical conversion process by being immersed in the chemical conversion liquid L therein.

  Moreover, in the electrodeposition processing part 11, the electrodeposition process which forms a coating film on the surface of the conveyance body W by immersing the conveyance body W in the electrodeposition coating liquid L in the electrodeposition tank T is performed, and the 2nd UF water washing part In 13 and the 1st RO water washing part 15, the washing body is given to the conveyance body W after the electrodeposition process by immersing the conveyance body W in the washing water L in the washing tank T.

  In addition, each UF water washing part 12-14 is a water washing part which flushes the conveyance body W using the purified water L by an ultrafiltration membrane (UF), and each RO water washing part 15 and 16 is a reverse osmosis membrane (RO). This is a water washing section for washing the transport body W with the purified water L.

  On the other hand, the processing units other than these immersion processing units are spray type processing units that spray the ejection fluid F (the ejection liquid or the ejection gas) by the ejection means N such as a nozzle to the transport body W as a main processing form, In the hot water washing unit 1, the preliminary degreasing unit 2, and the surface treatment unit 6, hot water for hot water washing, pre-degreasing treatment liquid, or surface conditioning treatment liquid is sprayed on the conveyance body W as the ejection fluid F. A hot water washing process, a preliminary degreasing process, or a surface conditioning process is performed.

  Moreover, in each spray type water-washing part, washing water is sprayed on the conveyance body W by spraying washing water as the ejection fluid F, and the air blow part 18 sprays air on the conveyance body W as the ejection fluid F. Then, a draining process and a pre-drying process are performed on the transport body W after the water washing process.

  In addition, the coating process section is equipped with a preheating furnace, a baking / drying furnace, a cooling processing section, etc. arranged in that order in the transport direction of the transport body W in addition to the air blow section 18, and this coating process section (undercoating process section). Subsequently, an intermediate coating process section and a top coating process section are provided, but in this example, the description thereof is omitted.

  As shown in FIGS. 3 to 6, the transport device U that sequentially transports the automobile body W that is the object to be coated to the processing units 1 to 18 has a pair of processing units 1 to 18 on the guide frame 20. In addition to laying rails 21, a plurality of transfer machines 22 that are sequentially moved along the rails 21 to the respective processing units 1 to 18 are provided, and these transfer machines 22 hold the transfer bodies W one by one. In this state, the vehicle body W is sequentially transported to the processing units 1 to 18 by moving the transporting machines 22 across the processing units 1 to 18 and sequentially moving them.

  The conveyor 22 includes a traveling wheel 23 that rolls on the rail 21, a retaining wheel 24 that abuts the rail 21 from both sides to prevent the conveyor 22 from shaking, and a conveyor that contacts the lower surface of the rail 21. 22 is provided with a suspension wheel 25 for preventing the lift of 22 and a current collector 27 for receiving the driving power of the mounting device from a power supply rail 26 extending along the rail 21 on the side surface of one rail 21. .

  In addition, a traveling friction plate 28 is provided at the lower portion of the transport device 22, and the idle roller 29 and the drive roller 30 sandwich the travel friction plate 28 on the moving path of the transport device 22 along the rail 21. A pair of pressure rollers and a transfer motor 31 for driving and rotating the drive roller 30 in the pair of pressure rollers are juxtaposed in the rail extending direction at a predetermined interval as a conveying machine delivery means. The idle roller 29 and the drive roller The conveying plate 22 is moved along the rail 21 by feeding the friction plate 28 clamped by the pair of clamping rollers 30 to the clamping unit by the clamping roller pairs 29 and 30 by the driving rotation of the driving roller 30 by the transfer motor 31. To move.

  That is, the juxtaposed group of the pair of nipping roller pairs 29 and 30 and the transfer motor 31 constituting the transfer device delivery means moves the transfer devices 22 sequentially to the processing units 1 to 18. By configuring the means and adjusting the rotational speed of each transfer motor 31 by inverter control or the like, it is possible to individually adjust the moving speed (that is, the feeding speed) of each conveyor 22 at each moving position as needed. it can.

  In addition, the transport device 22 is equipped with a lifting device 32 having a lifting arm 32A and a drive arm 32B, and a suspension mechanism 33 that suspends and holds the transport body W is provided at the tip of the lifting arm 32A. It is.

  The elevating device 32 rotatably supports a first support shaft 34 having the base end of the drive arm 32B connected and fixed thereto by a fixed bearing 35 on the transport device 22, while being guided by a guide 36 in the front-rear direction (the transport device 22). The moving support frame 37 that is movable in the moving direction) is provided in the conveyor 22, and the second support shaft 39 is rotatably supported by the moving bearing 38 provided on the moving mount 37, and is moved up and down on the second support shaft 39. The base end of the arm 32A is rotatably connected, and the distal end of the drive arm 32B is pivotally connected to the center of the lift arm 32A.

  Further, an elevator drive device 42 for moving the slider 40 back and forth by driving rotation of the screw shaft 41 is provided in the transport device 22, and an operation arm 43 connected and fixed to the slider 40 and the first support shaft 34 of the elevator drive device 42. Are connected by a connecting rod 44.

  That is, the elevating device 32 swings the operating arm 43 of the first support shaft 34 via the connecting rod 44 by moving the slider 40 of the elevating drive device 42 back and forth by driving rotation of the screw shaft 41 by the drive motor Ma. As a result, the first support shaft 34 is rotated to drive and swing the drive arm 32B, and the swing of the drive arm 32B causes the moving base 37, the moving bearing 38, and the second support shaft 39 to move back and forth (in other words, Then, the lifting arm 32A is swung around the second support shaft 39 in a form involving the approach and separation of the second support shaft 39 with respect to the first support shaft 34, so that the transport body W held by the suspension mechanism 33 is moved. It is structured to be raised and lowered with respect to the conveyor 22.

  Reference numeral 45 denotes a pneumatic cylinder that urges the operating arm 43 of the first support shaft 34 to the ascending operation side of the automobile body W via the connecting rod 44. This urging reduces the load on the drive motor Ma that is a lifting motor. To do.

  The suspension mechanism 33 rotatably attaches a suspension support shaft 46 to the tip of the lifting arm 32A, and connects the suspension member 47 coupled to the suspension support shaft 46 to the longitudinal center of the upper frame 48. The upper end of the vertical frame 49 is pivotally connected to both the front and rear end portions of the upper frame 48, and the horizontal frame 50 is extended from the lower end of each vertical frame 49 to the opposite side of the conveyor 22, so The front and rear ends of each of the two lower frames 51 are rotatably connected to the horizontal frame 50, and the transport body W is placed on the frame frame composed of the horizontal frame 50 and the lower frame 51 with this structure. In this state, the transport body W is held by the holders 52 at the four corners of the frame.

  The upper frame 48, the front and rear vertical frames 49, and the lower frame 51 constitute a parallel link mechanism. On the other hand, a driven sprocket 53 attached to the suspended support shaft 46 and a drive sprocket attached to the second support shaft 39 are provided. 54, a posture changing drive device 58 that winds the transmission chain 55 around and moves the slider 56 back and forth by driving rotation of the screw shaft 57 is provided on the transporting machine 22, and the slider 56 of the posture changing drive device 58 and A body posture changing device 61 is configured by connecting an operation arm 59 connected and fixed to the second support shaft 39 by a connecting rod 60.

  That is, the body posture changing device 61 moves the slider 56 of the posture changing drive device 58 back and forth by driving and rotating the screw shaft 57 by the drive motor Mb to move the operation arm 59 of the second support shaft 39 via the connecting rod 60. By swinging, the second support shaft 39 is rotated to drive and rotate the drive sprocket 54, and the rotation of the drive sprocket 54 causes the suspension support shaft 46 to rotate with the driven sprocket 53 via the transmission chain 55. By swinging the lower member 47, the posture of the upper frame 48 and the lower frame 51 is changed with the deformation of the parallel link mechanism including the upper frame 48, the front and rear vertical frames 49, and the lower frame 51. A structure in which the held transport body W is changed in posture to a forward and downward tilt posture with respect to the transport device 22. Are to.

  That is, the elevating device 32 and the body posture changing device 61 constitute body operating means for moving (moving up and down and tilting) the automobile body W transported by the transporter 22 with respect to the transporter 22.

  On the other hand, this electrodeposition coating system is provided with an overall controller CC (an example of an overall control means) that oversees the control of a plurality of transporters 22 that are sequentially moved across the processing units 1 to 18. The overall controller CC includes information i on the movement position of each transport device 22 obtained by the position detection means Is and the body type of each vehicle body W mounted and held on each transport device 22 obtained by the body type detection means Bs. Based on the information b, by controlling the transfer motors 31 juxtaposed in the extending direction of the rail 21 and the lifting device 32 and the body posture changing device 61 provided in each transporter 22, the movement of the transporter 22 is controlled. In the conveyance of the automobile body W, the conveyance body W is set to the combined movement pattern P (that is, the movement of the conveyance device 22 and the conveyance device 22 of the conveyance body W) set for each processing unit and each body type. Are the ones moving operation by the moving pattern) consisting of a synthetic with a mobile operation.

  As will be described later, the combined movement pattern P is a movement pattern P (r, v, θ) for the movement path r, movement speed v, and movement posture θ of the conveyance body W held by the conveyance device 22.

  In this example, unless otherwise specified, the moving speed v of the transport body W refers to the moving speed in the direction along the transport path r, and the moving posture θ of the transport body W refers to the horizontal moving posture.

  As for the control of each transfer motor 31, a traveling relay controller Ca that adjusts the rotational speed (that is, the transfer speed of the transfer machine) of the transfer motors 31 juxtaposed in the extending direction of the rail 21 by inverter control or the like. The relay controller Ca for traveling is controlled by a control command from the general controller CC, so that the rotational speed of each of the transfer motors 31 is adjusted at any time to move each transport device 22 at each moving position. The speed is individually adjusted according to the set composite movement pattern P for each processing unit and each body type.

  Further, regarding the control of the lifting device 32 and the body posture changing device 61 equipped in each conveyor 22, the drive motor Ma of the screw shaft 42 in the lifting device 32 and the drive motor Mb of the screw shaft 57 in the body posture changing device 61 are controlled. Relay controller Cb for body operation (an example of relay control means) is mounted on each transport device 22, and each relay controller Cb for body operation mounted on each transport device 22 is controlled from the overall controller CC. By performing the control operation according to the command, the transport body W of each transport machine 22 is configured to move with respect to each transport machine 22 according to the set combined movement pattern P for each processing unit and each body type.

  With the above configuration, each of the processing units 1 to 18 performs a predetermined process on the transport body W by moving the transport body W in accordance with the set combined movement pattern P for each processing unit and each body type. To do.

-About the movement operation in the immersion type processing unit (especially the electrodeposition processing unit 11) About the immersion type processing unit, specifically as the set synthetic movement pattern P for each processing unit and each body type (see FIG. 7),
A tank entering process in which the transport body W held by the transport machine 22 is lowered and immersed in the processing liquid L in the processing tank T, and subsequently, the transport body W is moved forward in the processing liquid L in the processing tank T. In-tank progressing step, followed by a step of raising the transport body W and pulling it up from the processing liquid L in the processing bath T, followed by a unloading step of unloading the transport body W from the immersion processing unit, About the movement path r, the movement speed v, and the movement posture θ of the transport body W during and between the processes of
A movement path change pattern Pr (r), a movement speed change pattern Pv (v), and a movement posture change pattern Pθ (θ) for each body type are set in the overall controller CC. (Ie, P (r, v, θ) = Pr (r) + Pv (v) + Pθ (θ))

  Then, by setting these three change patterns Pr, Pv, and Pθ, as shown in FIG. ~ D. The transport body W of each transport machine 22 is moved in such a travel mode (that is, a basic travel mode that is the basis of the individual travel mode for each body type).

  a. In the tank entry process, the transport body W held by each transporter 22 is processed with a steeply forward-downward movement path r and a steeply forward-downward movement posture θ along the forward-downward movement path r and with a large movement speed v. It is made to enter into the tank T and is immersed in the processing liquid L in the processing tank T.

  b. In the unloading process, the transport body W held by each transporter 22 is processed with a steeply forward moving path r and a steeply forward moving posture θ along the front rising moving path r and with a large moving speed v. The tank is lifted from the processing liquid L in the tank T and is discharged from the processing tank T.

  That is, by adopting such a movement mode of the entry / exit tank, it is possible to shorten the length of the treatment tank T by rapidly immersing (injecting) the transport body W into the treatment liquid L and drawing it out of the treatment liquid L, and Then, it is possible to prevent processing unevenness (for example, so-called stepping in the electrodeposition process) caused by insufficient liquid input speed when the transport body W is introduced into the processing liquid L in the tank entering process.

  c. In the in-tank advancement process, the transport body W held by each transport machine 22 is advanced in the liquid on the horizontal movement path r and at an appropriate moving speed v that allows the processing liquid L to be processed to the transport body W satisfactorily.

  d. In the unloading process, the transfer body W held by each transfer machine 22 is unloaded and moved along the horizontal movement path r and in the inclined movement posture θ, and the discharge of the processing liquid L remaining in the bag structure portion or the like of the transfer body W is urged.

  In addition, while adopting these basic movement forms, individually, the movement form for each body type corresponding to the body type of the transport body W held by each transporter 22 (in short, the above basic movement form is referred to as the body type). As a moving form finely adjusted according to the following), for example, the following e. ~ I. The transport body W of each transport machine 22 is moved in the moving form as described above.

  e. The buoyancy that occurs when the transport body W held by each transport machine 22 is immersed in the processing liquid L varies depending on the body type of the transport body W, and also, when the liquid enters the body local part, Where the degree and location vary depending on the body type, the forward downward movement path r and the forward downward movement posture θ in the tank entry process are set to the optimum inclination angle for each body type that suppresses the occurrence of buoyancy and bubble entrapment as described above. The transport body W is introduced into the processing liquid L in the processing tank T in the state of the forward downward movement path r and the forward downward movement posture θ of the optimum inclination angle.

  f. In contrast to the fact that the main cause of buoyancy generation differs depending on the body type of the transport body W, only the period during which the main cause of buoyancy generation in the transport body W is in the process of entering the processing liquid L in the tank entry process. The transfer body W enters the processing tank T in the optimum movement speed change mode for each body type that decreases the moving speed v (that is, the liquid entering speed) and increases the moving speed v for other periods in the tank entering process. Let

  That is, by adopting such a tank entering mode for each body type according to the body type, the transfer body W held by the transfer machine 22 is transferred due to a large buoyancy generated when the liquid enters the processing liquid L. It prevents conveyance troubles such as separation from the machine 22 and processing failures caused by bubbles caught in the body part.

g. If the transfer body θ is moved in a state of being immersed in the processing liquid L in the processing tank T and the movement posture θ of the transport body W is adjusted, the processing liquid L around the transport body W in the processing tank T is adjusted. The passage sectional area can be adjusted, and the relative speed of the processing liquid L with respect to the transport body W can be adjusted by adjusting the passage sectional area.
Therefore, in the in-tank advancement process, the optimum movement posture θ for each body type that can optimize the relative speed of the processing liquid L with respect to the transport body W (for example, the forward inclination movement posture θ of the optimum inclination angle or the optimum inclination angle). It moves forward in the liquid in a forward rising movement posture θ, and in some cases a vertical movement posture.

  In other words, this prevents foreign matter from adhering to the transport body W, causing bubbles in the vicinity of the transport body W, and staying of generated heat, which cause a reduction in processing quality.

  h. When pulling up the transport body W from the processing liquid L in the tank exiting process, the quality of the processing liquid L coming out from the bag structure portion etc. in the transport body W differs depending on the body type. In addition, the transport body W is moved from the processing tank T in the state in which the forward upward movement posture θ is set to the forward upward movement path r of the optimum inclination angle and the upward upward movement posture θ of the optimum inclination angle for each body type from which the treatment liquid L can easily escape. Let go.

  i. In the carry-out process, when the transport body W is carried out in the inclined movement posture θ, whether the residual processing liquid L is discharged from the bag structure portion or the like in the transport body W differs depending on the body type. As the tilting movement posture θ, the transport body W is set to the rearward downward movement posture θ of the optimum inclination angle for each body type, or is set to the forward downward movement posture θ of the optimum inclination angle, or the optimum inclination. The transport body W is carried out and moved in an optimum tilting operation mode for each body type that improves the discharge of the residual processing liquid L from the transport body W, such as swinging back and forth within an angle range.

-About a movement operation in a spray type processing part About a spray type processing part, as setting synthetic movement pattern P for every processing part and every body type, specifically (refer to Drawing 8-Drawing 9 and Drawing 10),
A carrying-in process of carrying the transport body W held by the transport machine 22 into the spraying treatment area S of the ejected fluid F by the ejection means N, and an intra-regional proceeding process for moving the transport body W in the spraying treatment area S. Subsequently, the movement path r, the movement speed v, and the movement posture θ of the conveyance body W during and between the steps of the unloading process of unloading the conveyance body W from the spray processing area S,
Similar to the immersion processing unit, a movement path change pattern Pr (r), a movement speed change pattern Pv (v), and a movement posture change pattern Pθ (θ) for each body type are set in the overall controller CC.

  And among the spray type processing units, the spray type processing unit (for example, the electrodeposited pure water washing unit) in which the spraying means N such as nozzles are arranged in the upper part or the side part of the spraying processing region S in the horizontal one row state or the horizontal two row state. 17, for the latter half of the pre-treatment pure water rinsing section 10 and the air blowing section 18, such as a spray type processing section that intensively blows a high-pressure jet fluid F), by setting the three change patterns Pr, Pv, Pθ, As shown in FIGS. 8 to 9, as a movement form for each body type corresponding to the body type of the transport body W held by each transport machine 22, for example, the following j. ~ M. In this manner, the transport body W of each transport machine 22 is moved.

  j. Discharge of the remaining processing liquid L (or F) that has entered the bag structure of the transport body W held by each transport machine 22 in the previous processing unit 22 to the spraying processing region S side (that is, equipped in the spraying processing region S) In order to promote the discharge to the drainage section), the transport body W is basically transported to the spray treatment area S in the forward downward movement posture θ in the carry-in process, and the remaining treatment liquids L and F at this time are discharged. Pass / Fail depends on the body type.

  On the other hand, in the carrying-in process, the transport body W is sprayed in the state of the forward downward movement posture θ of the optimum inclination angle for each body type that improves the discharge of the remaining processing liquids L and F to the spray processing area S side. Carry it into zone S.

  k. When the transport body W is advanced in the spray processing zone S in the spray processing zone S with the horizontal movement path and the horizontal movement posture in the region advancement process, the jetting means N and the target fluid on the transport body W to which the jet fluid F is blown by the jetting means N are sprayed. The positional relationship with the spraying part (here, the part to be sprayed at each time point that moves on the transport body W in the direction opposite to the body traveling direction by the relative movement of the ejection means N with respect to the travel of the transport body W in the region) In view, the distance d (spraying distance) between the jetting means N and the sprayed portion sequentially changes depending on the body shape as the transport body W progresses in the region, and the transport body W on the transport body W with respect to the direction of fluid ejection from the jetting means N The direction α (spraying direction) of the portion to be sprayed also changes sequentially depending on the body shape, and in addition, the spraying distance d depends on the body shape difference due to the body type of the transport body W. Form of changes in spray direction α is more different.

  On the other hand, in the region advancement process, the distance d (spraying distance) between the ejection means N and the sprayed portion on the transport body W is kept constant and the fluid is ejected from the ejection means N in a side view. On the other hand, the transport body W is caused to travel in the region in an optimal travel mode for each body type that maintains the spraying state (α = 90 °) in which the sprayed portion on the transport body W is in a vertical posture.

  l. Further, the presence or absence of a specific sprayed part x (for example, a specific sprayed part that is a fixed part on the transport body W such as a gap structure part) where the spraying process of the sprayed fluid F by the spraying means N should be performed with particular emphasis. In contrast to the fact that the existence position differs depending on the body type, when the ejected fluid F by the ejecting means N is sprayed on the specific sprayed part x on the transport body W in the intra-regional advancement process (that is, as shown in FIG. 8B). In the state), the specific sprayed part x is brought close to the spraying means N to shorten the spraying distance d, and the in-progress of the transport body W is temporarily stopped, temporarily slowed down, or temporarily switched back and forth. The transport body W travels in the region in an optimal travel mode for each body type that causes the sprayed fluid F to be sprayed to the specific sprayed part x longer in time than the other parts, for example, by making it into a state. To.

  In addition, when the specific sprayed part x is brought close to the ejection means N as described above, the adjustment of the spraying direction in which the specific sprayed part x is in a vertical posture or a predetermined oblique posture with respect to the direction of fluid ejection from the jetting means N is also performed. It is desirable to do this.

  m. In order to facilitate the discharge of the spray fluid F (washing water) that has entered the bag structure of the transport body W or the like, the transport body W of each transport machine 22 is basically transported in an inclined movement posture θ in the transport process, At this time, the quality of discharge of the incoming fluid F (incoming washing water) varies depending on the body type.

  On the other hand, in the carry-out process, as the tilting operation for bringing the transport body W of each transport machine 22 into the tilting movement posture θ, the transporting body W is set to the rearward moving posture θ after the optimum tilt angle for each body type, or optimal Conveying body W with the optimal tilting action for each body type that improves the discharge of the inflowing fluid F (wash water), such as the forward downward movement posture θ of the tilt angle, or swinging back and forth within the optimal tilt angle range Move out. (In general, the air blow unit 18 does not require a tilting operation in the carry-out process.)

  The above-mentioned J. ~ M. These movement forms can also be applied to the spray-type treatment unit other than the electrodeposition pure water washing unit 17, the latter half of the pretreatment pure water washing unit 10, and the air blow unit 18.

  On the other hand, among the spray-type treatment units, a spray-type washing unit (that is, a relatively low-pressure washing water F) in which a large number of ejection means N such as nozzles are arranged in the spray treatment area S in a grouped enclosure arrangement form with respect to the transport body W. 10 is widely sprayed on the transport body W in a grouped manner), the settings of the three change patterns Pr, Pv, and Pθ allow the transport body W held by each transport machine 22 to be set as shown in FIG. As a movement form for each body type according to the body type, for example, the following n. ~ P. In this manner, the transport body W of each transport machine 22 is moved.

  n. As in the case of the centralized spray processing unit, basically, the transport body W of each transporter 22 is transported to the spray processing area S in the forward downward movement posture θ in the carry-in process. The discharge of the remaining processing liquid L (or F) entering the bag structure or the like of the bag differs depending on the body type, and the discharge of the remaining processing liquid L, F to the spraying treatment area S side is better in the carry-in process. The transport body W is carried into the spraying treatment area S in the state of the forward downward movement posture θ of the optimum inclination angle for each body type to be performed.

  o. Further, basically, in the intra-regional advancement process, the transport body W held by each transporter 22 is moved forward and backward to increase the processing effect of the spraying process (that is, the cleaning effect by spraying the cleaning water). The specific sprayed portion x (for example, a gap structure portion) to be subjected to the spraying process of the ejected fluid F by the means N is ejected in the intra-regional progressing process, while the presence or absence and the position of the specific sprayed portion x vary depending on the body type. When the ejected fluid F from the means N is sprayed on the specific sprayed part x on the transport body W, the travel of the transport body W is temporarily stopped, temporarily slowed down, or temporarily switched back and forth. Thus, it is optimal for each body type to spray the jetted fluid F (wash water) on the specific sprayed part x on the transport body W longer in time than the other parts. In row movement form, to regional proceed conveyance body W.

  p. As in the case of the centralized spray processing unit, basically, the transport body W of each transport machine 22 is transported and moved in the inclined movement posture θ in the transport process, but the spray fluid that has entered the bag structure of the transport body W, etc. In contrast to the fact that the quality of F (wash water) discharge varies depending on the body type, in the carry-out process, the transport body W is tilted optimally for each body type as a tilting operation that places the transport body W in the tilting movement posture θ. Improve the drainage of the incoming fluid F (washing water), for example, by setting the angle to the downward moving posture θ, or setting the moving posture θ to the front at the optimum tilt angle, or swinging back and forth within the optimum tilt angle range. The transport body W is carried out and moved in an optimum tilting operation mode for each body type.

-Regarding the movement operation relationship between the processing units In the electrodeposition processing unit 11 among the immersion processing units, the preceding transport body W and the subsequent transport body W in the processing liquid L in the processing tank T (electrodeposition tank) When the interval is small, the processing quality is deteriorated (so-called bipolar failure) due to mutual interference of the electrodeposition processing on the transport body W.

  On the other hand, the setting of the synthetic movement pattern P (Pr, Pv, Pθ) for each processing unit and body type for the electrodeposition processing unit 11, and the degreasing processing unit 3 and chemical conversion processing which are other immersion processing units About the entry / exit tank process in each of the degreasing process part 3, the chemical conversion process part 7, and the electrodeposition process part 11 by the setting of the synthetic | combination movement pattern P (Pr, Pv, P (theta)) for every process part about the part 7, and every body kind. Moves the preceding conveyance body W and the subsequent conveyance body W at a movement interval e that can reliably prevent contact interference between them.

  And in the electrodeposition coating part 11, the preceding conveyance body W and the subsequent conveyance body W22 are advanced in the liquid in the movement form in which the movement interval e is expanded in the in-tank process 11, and conversely, the degreasing treatment part 3 and the chemical conversion treatment are performed. In the section 7, the preceding transport body W and the subsequent transport body W are advanced in the liquid in a state where the movement interval e is reduced within a range where the contact interference between the preceding transport body W and the subsequent transport body W does not occur.

  That is, by adopting such a movement form related to the movement interval, contact interference between the preceding transport body W and the subsequent transport body W can be reliably prevented, and so-called bipolar defects in the electrodeposition processing unit 11 are further reduced. The entire painting facility can be downsized while reliably preventing it.

Other Controls The transport body W that has been drained or pre-dried by the air blow unit 18 is transferred to a transport carriage in a transport device for transport in the furnace and sequentially transported to the subsequent pre-drying furnace and baking drying furnace. The transfer process of the transfer body W, the transfer process of returning the empty transfer machine 22 without the transfer body W to the body receiving unit following the transfer process, and the next transfer body W is received by the body receiving unit. Also in each of the body receiving processes, the overall controller CC controls the transfer motor 31, the lifting device 32 and the body posture changing device 61 installed in each transport device 22 based on the movement position information i of each transport device 22. This is done automatically.

  As for the position detection means Is, a method of obtaining the movement position information i of each conveyance machine 22 based on the detection information of the conveyance machine detection sensors juxtaposed along the movement path of the conveyance machine 22 or the movement distance of each conveyance machine 22 There are various methods such as a method of obtaining the movement position information i of each conveyor 22 based on the measurement information of the measuring means for measuring the position, or a method of obtaining the movement position information i of each conveyor 22 based on the imaging information of the surveillance camera. Things can be adopted.

  The body type detection means Bs also obtains the body type information b by detecting the body shape at the stage of holding the automobile body W on the conveyor 22 or in the vicinity thereof, or reading the tag attached to each automobile body W. Various methods such as a method and a method of obtaining body type information b as part of production plan information from a production management device of a painting system can be adopted.

  On the other hand, in this coating system, a simulation device SM is provided together with the overall controller CC. This simulation device SM includes data on the structure of each processing unit 1 to 18, data on processing contents, Based on the data on the movement characteristics, the data on the operation characteristics of the lifting device 32 and the posture changing device 61, the data on the shape and structure of each body type of the automobile body W to be painted, etc. For each automobile body W, the combined movement pattern P for each processing unit and body type (specifically, the three change patterns Pr, Pv, Pθ for each processing unit and each body type) is changed variously. Treatment process and treatment result of each treatment unit 1-18 (for example, on the transport body W in the tank advancement process in the immersion treatment) Which simulates the process liquid such as the relative speed of the magnitude relationship between L) while monitor display to be.

  The simulation apparatus SM performs processing in accordance with selection criteria set including various reference elements such as weighting degree of processing quality, weighting degree of processing efficiency, weighting degree of energy saving, and weighting degree of operation cost. Considering the relationship between the parts, an automatic selection function for automatically selecting the optimum combined movement pattern P (Pr, Pv, Pθ) for each body type for each of the processing units 1 to 18 is provided.

  In addition, an optimum combined movement pattern P (Pr, Pv, Pθ) for each body type for each of the processing units 1 to 18 automatically selected in this way is automatically sent to the overall controller CC after receiving the operator's approval operation. It also has an automatic setting function to set automatically.

  That is, prior to the operation of the newly installed painting system, when a new body type automobile body W is added as a painting target, or when any one of the processing units is modified, the operator uses this simulating device SM in a timely manner. The optimum combined movement pattern P (Pr, Pv, Pθ) for each processing unit and body type is selected, and the optimal combined movement pattern P (Pr, Pv, Pθ) for each selected processing unit and body type is selected. ) In the overall controller CC, the processing units 1 to 18 cause the transport bodies W of the transport machines 22 to move in accordance with the optimal set composite movement pattern P (Pr, Pv, Pθ).

[Another embodiment]
In each processing unit, what kind of moving form is specifically adopted as the moving form for each processing unit and each body type in the transport vehicle body W held by the transporter 22, in other words, for each processing unit and the body type. The specific movement pattern to be set as each set movement pattern P (Pr, Pv, Pθ) can be determined appropriately according to the processing contents of each processing unit, the operating conditions of each processing unit, and the like. Well, it is not limited to the movement form (that is, movement pattern) shown in the above embodiment.

  The specific structure of the transport machine 22 is not limited to the structure shown in the above-described embodiment, and various structures can be adopted. In addition, the transport machine 22 can be adjusted in a state where the moving speed of each of the transport machines 22 can be individually adjusted. The transfer machine moving means for moving sequentially over a plurality of processing units is not limited to the structure shown in the above-described embodiment, and various types of structures can be adopted, and a self-propelled type capable of adjusting individual moving speeds. You may make it equip each conveyance machine 22 with a conveyance machine moving means.

  The body operating means for moving the transported vehicle body W held by the transporter 22 relative to the transporter 22 is not limited to the lifting device 32 and the body posture changing device 61 shown in the above-described embodiment, but can be various. The structure can be adopted, and the operation to be performed by the vehicle body W by the body operation means is not limited to the raising and lowering and tilting with respect to the conveyor 22, but can be laterally moved and rotated with respect to the conveyor 22. May be.

  In addition, in order to transport the vehicle body W by the transporter 22, the transport body 22 is not limited to a transport mode in which the front part of the car body W is directed toward the lower transport side, or a transport mode in which the rear part of the car body W is directed toward the lower transport side. Depending on the case, you may employ | adopt the conveyance form which orient | assigns the side part, roof part, or bottom part of the motor vehicle body W to a conveyance lower side.

  The coating system according to the present invention is not limited to electrodeposition coating, but can be applied to various coatings as long as it is applied to the automobile body W, and only in one of the pretreatment process section and the coating process section in the body coating. You may apply.

  Furthermore, the coating system according to the present invention can also be applied to objects to be coated other than the automobile body W (for example, automobile parts, steel sheets, electrical appliance casings, parts, etc.). A painting system can be used.

The transporting machine that holds the object to be coated W is passed over a plurality of processing units in the preprocessing process unit or a plurality of processing units in the subsequent coating process unit with a gap between the preceding transporting machine and the subsequent transporting machine. Provide transporter moving means to move sequentially,
Along with the transfer of the workpiece W by the movement of the transfer device by the transfer device moving means, in the processing section in which the transfer workpiece W is in the process of passing, a predetermined amount is applied to the transfer workpiece W in the passing process. As a coating system that is configured to perform processing,
While making the said conveyance machine moving means the structure which can adjust the moving speed separately about each of the said conveyance machine,
Each of the conveyors is equipped with an object operation means for moving the object to be conveyed W held by the conveyor relative to the conveyor.
As a control means that supervises a plurality of the transfer machines,
Based on the information on the movement position of each of the conveyors that are sequentially moved across a plurality of the processing units, and the information on the type of the object to be conveyed W held by each conveyor, By controlling the coating object operating means equipped in each transport machine, the transport coating object W held by each transport machine is a synthetic movement pattern set for each processing unit and each coating material type. A painting system with integrated control means for moving.

  That is, in the above-described first to eighth characteristic configurations of the present invention, instead of setting the object of the pretreatment or the painting process as the body of each body type, the object to be coated of each type of object may be used.

  INDUSTRIAL APPLICABILITY The present invention can be applied to various types of automobile body coating that adopts a processing mode in which an automobile body that is an object to be coated is sequentially conveyed and processed over a plurality of processing units.

W Car body 22 Transporter 1-18 Processing unit 29, 30, 31 Transporter moving means 32, 61 Body operation means CC General control means i Movement position information b Body type information Cb Relay control means P Composite movement pattern T Processing tank L Treatment liquid Pr Movement path change pattern Pv Movement speed change pattern Pθ Movement posture change pattern N Spray means F Spray fluid S Spray treatment area d Distance x Specific sprayed part e Travel interval SM Simulating means

Claims (8)

A plurality of processing units in a pre-processing process unit or a plurality of processing units in a subsequent coating process unit with a transporter holding an automobile body that is an object to be coated in a state where there is a gap between the preceding transporting device and the subsequent transporting device. A transporter moving means is provided for moving sequentially and moving,
As the vehicle body is transferred by the movement of the transfer device by the transfer device moving means, the processing unit in which the transfer vehicle body is in a passing process is configured to perform a predetermined process on the transferred vehicle body in the passing process. A painting system,
While making the said conveyance machine moving means the structure which can adjust the moving speed separately about each of the said conveyance machine,
Equipped with body operation means for moving the automobile body held by the conveyor relative to the conveyor, respectively,
As a control means that supervises a plurality of the transfer machines,
Based on the information on the movement position of each of the transfer machines that are sequentially moved across the plurality of processing units and the information on the body type of the transfer vehicle body held by each transfer machine, the transfer machine moving means and each transfer machine Providing a general control means for moving the transport vehicle body held by each transport machine in accordance with the combined movement pattern set for each of the processing units and for each body type Painting system. Equipped with a relay control means for controlling the body operation means equipped in each of the transport machines,
The overall control means is configured to give a control command to the relay control means of each transport machine for moving the transport vehicle body held by each transport machine with the set combined movement pattern for each processing unit and each body type. West,
The coating system according to claim 1, wherein the relay control unit of each transport unit is configured to control the body operation unit of each transport unit in accordance with the control command given from the overall control unit. At least one processing unit among the plurality of processing units is an immersion type processing unit that immerses the transported automobile body held in the transporter in a processing liquid in a processing tank,
As the set synthetic movement pattern for each processing unit and each body type when the transporter is located in this immersion type processing unit,
A tank entering step of lowering the transport vehicle body held by the transporter and immersing the transport vehicle body in the treatment liquid in the treatment tank, and subsequently, in the tank for moving the conveyance automobile body in the treatment liquid in the treatment tank. Each step of the advancing step, followed by the unloading step of raising the transport vehicle body and pulling it up from the treatment liquid in the treatment tank, and subsequently the unloading step of unloading the transport vehicle body from the immersion processing unit The coating system according to claim 1 or 2, wherein a movement path change pattern, a movement speed change pattern, and a movement posture change pattern for each body type of the transport vehicle body during and between the steps are set in the overall control means. As the movement path change pattern and the movement posture change pattern for each body type set for the immersion processing unit,
A movement path change pattern and a movement attitude change pattern in which the transport vehicle body held by the transporter in the in-tank progressing process progresses in the liquid in a horizontal movement path and in a forward downward inclination posture or a forward upward inclination posture for each body type. The coating system according to claim 3, wherein the overall control means is set. At least one processing unit among the plurality of processing units is a spray type processing unit that sprays a jet fluid by a jetting unit on a transport vehicle body held by the transport machine,
As the set composite movement pattern for each processing unit and each body type when the transporter is located in this spray type processing unit,
A carrying-in process of carrying the transported automobile body held by the transporter into the spraying treatment area of the ejected fluid by the ejection means, followed by an intra-regional progressing process in which the transporting automobile body is advanced and moved within the spraying treatment area, and The movement path change pattern, the movement speed change pattern, and the movement posture change pattern for each body type of the conveyance automobile body during and between the steps of carrying out the conveyance automobile body from the spray processing area. The coating system according to claim 1, which is set in the overall control unit. As a movement path change pattern, a movement speed change pattern, and a movement posture change pattern for each body type set for the spray type processing unit,
The distance between the spraying means and the sprayed part on the transporting vehicle body to which the fluid ejected by the spraying means is sprayed with respect to the traveling movement of the transporting vehicle body in the spraying treatment area, or the spraying by the spraying means A movement path change pattern, a movement speed change pattern, and a movement posture change pattern in which the fluid is sprayed to a specific sprayed part on the transport vehicle body longer in time than the other parts are set in the overall control means. The coating system according to claim 5. As the set composition movement pattern for each processing unit and each body type,
Among the plurality of processing units, the specific processing unit moves the transported vehicle body in a state where the distance between the preceding transported vehicle body held by the preceding transporter and the subsequent transported vehicle body held by the subsequent transporter is enlarged or reduced. The painting system according to any one of claims 1 to 6, wherein a combined movement pattern to be performed is set in the overall control means.   2. A simulation means for simulating a processing process or a processing result of processing in the processing section when each of a plurality of types of the combined movement patterns is adopted for each of a plurality of automobile bodies having different body types. The coating system of any one of -7.

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