JP2009106896A - Cleaning equipment - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide compact cleaning equipment capable of performing highly effective washing equal to conventional cleaning equipment provided with a plurality of conventional washing tubs. <P>SOLUTION: The cleaning equipment includes a washing tub, shower nozzle, liquid discharge port, washing liquid storage tub, and circulation washing means for circulating and supplying a washing liquid in the washing liquid storage tub to the shower nozzle. The equipment has a plurality of combinations of storage tubs and circulation means, and a combination selecting means for selecting a combination of one storage tub and circulation means among the plurality of combinations of the storage tubs and circulation means to supply the cleaning liquid from the liquid discharge port to the selected storage tub, performing washing by operating only the selected circulating washing means, and repeating it as well. The equipment having the combination selecting means, when switching the combination selecting means, after stopping the circulation washing means, sends back the cleaning liquid in piping near the shower nozzle to the washing liquid storage tub connected with the piping, and switches to the next combination of the storage tub and circulation means after the elapse of the predetermined time. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a cleaning apparatus, and more particularly to a cleaning apparatus that can be suitably used for cleaning such as a water washing step in surface treatment such as plating.

  In the metal plating step, the object to be plated is washed with water after being plated in a plating bath. The components of the plating bath are brought into the washing water. For this reason, this washing water is effectively used by adding it to the plating solution concentrated by evaporating the water or returning the water to the plating bath after evaporating the water and concentrating it.

  Here, conventionally, cleaning is performed by immersing an object to be cleaned in a liquid tank containing a cleaning liquid. Since this method requires a large amount of cleaning liquid, a large amount of heat is required later during concentration, and the concentrator becomes large.

  In order to solve such drawbacks, a shower type cleaning method has been used. However, even in such shower type cleaning, a cleaning tank corresponding to the number of cleanings such as the first cleaning, the second cleaning, or the third cleaning is required. Or it was necessary to use a washing liquid tank together (patent document 1).

  In view of this, the present inventors have proposed a method for efficiently cleaning by switching the supplied cleaning liquid in one cleaning tank in Japanese Patent Laid-Open No. 2001-347235 (Cited Document 2).

  This cleaning apparatus will be described with reference to FIGS. 4 and 5 show a configuration of a main part of the cleaning apparatus as a side view and a plan view.

  FIG. 2 shows that a cleaning liquid from a drain outlet 151a provided at a lower portion of a cleaning chamber 151 of the cleaning apparatus is distributed and supplied to a cleaning liquid tank selected from a plurality of cleaning liquid tanks disposed below the cleaning liquid tank, and then another cleaning liquid is sequentially supplied. It is model sectional drawing of the flow-path switching mechanism A vicinity supplied to a tank.

  In the figure, reference numeral 151 denotes a cleaning chamber, and a cleaning liquid flow path switching mechanism A is connected to the cleaning chamber 151 via an attachment member 159 immediately below the drainage port 151a. Under the flow path switching mechanism A, four rectangular parallelepiped cleaning liquid tanks 131 to 134 (hereinafter simply referred to as tanks) are placed close to the square shape so as to surround the drainage port 151a. Installed. Of these four tanks, the tank 131 is a storage tank that is discharged at the beginning of cleaning and stores the cleaning liquid having the highest degree of contamination without being circulated.

  As shown in FIG. 2, the flow path switching mechanism A is attached in close contact with a flat bottom surface of an attachment member 159 fixed to the lower surface of the cleaning chamber 151 using a connecting bolt 190.

  As shown in FIGS. 2 and 3, the schematic configuration of the flow path switching mechanism A is rotatable horizontally around the drainage port 151a, and the effluent drainage from the drainage port 151a is supplied to four tanks. In 131 to 134, a rotary distribution board 101 that plays a role of sequentially flowing in order from a tank with a high concentration of dirt components in the liquid to a thin tank is rotatably incorporated in the inner space of the rotary board support member 102. . A motor 103 serving as a drive source for the rotary distribution disc 101 is attached to the side surface of the rotary disc support member 102.

  In this example, the rotary distributor 101 is made of metal or synthetic resin, and is formed of a thick disk-like block. A liquid inlet 104 that is in sliding contact with the drainage port 151a of the cleaning chamber 151 is formed at the center of the upper surface thereof. A liquid outlet 105 is provided at one position on the peripheral edge of the lower surface. The liquid inlet 104 and the liquid outlet 105 communicate with each other via a liquid flow path 106 provided so as to cut through the rotary distributor 101.

  A ring gear 107 is fitted on the outer peripheral surface of the rotary distribution board 101. In addition, an annular packing 108 that is in sliding contact with the flat lower surface of the mounting member 159 is provided on the upper surface of the rotary distributor 101 so as to surround the liquid inlet 104.

  The turntable support member 102 has a configuration in which an upper half 102A and a lower half 102B are combined by a connecting bolt 109. The rotary distribution disc 101 is rotatably supported by the rotary disc support member 102 via a bearing 110 fitted in an inner space provided in the upper half 102A.

  Between the upper surface of the upper half 102A of the annular casing-like rotating disk support member 102, the contact surface with the mounting member 159, and between the inner peripheral surface of the upper half 102A and the outer peripheral surface of the rotary distributor 101. In the provided annular space a, annular packings 111 and 112 for maintaining liquid-tightness are provided.

  As shown in FIG. 3, the plan view shape of the turntable support member 102 has a form in which one portion of the outer peripheral surface of the circular plate is bulged, and this bulged portion is a gear box portion 102 </ b> C. A variable speed motor 103 is attached to the side end face of the gear box portion 102C.

  A pair of upper and lower bearings 115 and 115 that support the gear shaft 114 of the pinion 113 that meshes with the ring gear 107 are incorporated in the gear box portion 102C. A bevel gear 116 is fitted on the gear shaft 114. This bevel gear 116 meshes with another bevel gear 118 fitted on the output shaft 117 of the motor 103.

  Further, on the outer peripheral surface of the rotation distribution board 101, rotation position display units 121 for detecting the rotation position of the rotation distribution board 101 are attached to a total of four locations corresponding to the arrangement of the four tanks 131 to 134. On the other hand, on the lower surface of the lower half 102B of the annular casing 102, rotational position sensors 122 are attached at respective positions corresponding to the rotational position display sections 121.

  As shown in FIG. 3, each rotational position sensor 122 is attached to a displaceable arc-shaped strip 123 along the circumferential direction of the annular casing-like rotating disk support member 102. The arc-shaped strip 123 has a long hole 124 arranged along the arc. The bolt 125 inserted through the long hole 124 is screwed into the screw hole of the annular casing 102, so that the fixed position of the rotational position sensor 122 can be finely adjusted.

  In the flow path switching mechanism A, as described above, the cleaning drainage discharged from the drainage port 151a in the process of cleaning the cleaning article in the cleaning chamber 151 is sequentially switched into the plurality of tanks 131 to 134. For this purpose, a rotation control unit (not shown) of the motor 103 that controls the rotational movement of the rotary distribution board 101 is attached.

  As can be easily understood from FIG. 2, the flow path switching mechanism A has a structure in which the height dimension can be suppressed as low as possible. Accordingly, the overall height of the cleaning liquid circulation concentrating system can be considerably lowered, and this system can be easily installed even in a limited space.

  Further, the flow path switching mechanism A has a complete liquid-tight structure as shown in FIG. Therefore, even when handling a corrosive cleaning liquid, the labor and cost for maintenance and management can be saved and sufficient durability can be ensured.

  Using the cleaning device having such a flow path switching mechanism A, the cleaning liquid in the cleaning liquid tank selected by switching is supplied to the shower head provided in the cleaning chamber, and is inserted into the cleaning chamber. It has been thought that efficient cleaning can be achieved by cleaning the cleaning object.

However, in the above example, the cleaning effect was low compared with the conventional cleaning apparatus provided with the four conventional cleaning tanks, and the result was not satisfactory.
Japanese Patent Publication No. 3-44830 JP 2001-347235 A

  The present invention provides a cleaning device that improves the above-described conventional problems, that is, a compact cleaning device capable of cleaning that is highly effective comparable to a conventional cleaning device provided with a plurality of conventional cleaning tanks. With the goal.

In order to solve the above-mentioned problems, the cleaning apparatus of the present invention has a cleaning tank, a shower nozzle inside the cleaning tank, a drain port at the lower part of the cleaning tank, and a cleaning solution downstream of the drain port as described in claim 1. A cleaning apparatus comprising: a storage tank; and a circulating cleaning means for circulatingly supplying the cleaning liquid in the cleaning liquid storage tank to the shower nozzle via a pipe connected to the shower nozzle, the cleaning liquid A plurality of storage tank / circulation means combinations comprising a storage tank and a circulating cleaning means connected to the cleaning liquid storage tank, and one storage solution from among the combination of the plurality of storage tanks / circulation means Select the combination of tank and circulation means, supply the cleaning liquid from the drainage port only to the selected cleaning liquid storage tank, and only the circulating cleaning means connected to the selected cleaning liquid storage tank Clean by running, then other liquid storage tanks in sequence Switching to a combination of the circulating means, it is similarly repeated thereafter, and a combination selection means, in the cleaning device,
When the combination selection unit stops the circulating cleaning unit at the time of switching, the cleaning liquid in the pipe near the shower nozzle is sent back to the cleaning liquid storage tank to which the pipe is connected, and then for a predetermined time. The cleaning apparatus is characterized in that it is switched to the next combination of the liquid storage tank and the circulation means.

  Further, as described in claim 2, the cleaning device of the present invention is the cleaning device according to claim 1, wherein the portion that comes into contact with the cleaning liquid is hydrophilized, hydrophilic processed, water repellent, and One or more treatments selected from water repellent treatment are applied.

  Moreover, the cleaning apparatus of this invention is the cleaning apparatus of Claim 1 or Claim 2 after stopping the said circulation washing | cleaning means in Claim 1, or the washing | cleaning apparatus as described in Claim 3, and a to-be-cleaned object. On the other hand, an impact applying means for applying an impact for draining liquid is provided.

  Moreover, the cleaning apparatus of this invention is the cleaning apparatus of any one of Claim 1 thru | or 3 as described in Claim 4, One cleaning liquid storage liquid among these cleaning liquid storage tanks. After the cleaning liquid in the tank is transferred to another place and drained, the cleaning liquid in the other cleaning liquid storage tank is transferred to the cleaning liquid storage tank from which the cleaning liquid has been drained, and the transfer and drainage of this cleaning liquid are sequentially performed. It is characterized by comprising cleaning liquid pre-feeding means that repeats and cleaning liquid introducing means that introduces a new cleaning liquid into the cleaning liquid storage tank that has finally transferred and discharged the cleaning liquid.

  Moreover, the cleaning apparatus of the present invention is the cleaning apparatus according to any one of claims 1 to 4, wherein the plurality of cleaning liquid storage tanks are connected in series, respectively. It is characterized by comprising two or more liquid storage tanks.

  Moreover, the cleaning apparatus of this invention is comprised in the cleaning apparatus of Claim 4 from the 2 or more liquid storage tank to which these cleaning liquid storage tanks were connected in series, respectively. The storage tanks on the most downstream side of these storage tanks are arranged so as to be positioned from bottom to top in the order of the transfer and drainage, respectively, and from the bottom of the storage tanks on the most downstream side A pipe for transferring and draining each cleaning liquid to a liquid storage tank located one lower by using gravity in the second and subsequent liquid storage tanks, and an openable and closable valve device provided in the pipe; It is characterized by having.

  According to the cleaning apparatus of the present invention, when the combination selection unit is switched, the circulation cleaning unit is stopped, and then the cleaning liquid in the pipe near the shower nozzle is sent back to the cleaning liquid storage tank to which the pipe is connected. Then, after a predetermined time, by switching to the next storage tank / circulation means combination, it is possible to eliminate the dripping of the cleaning liquid from the shower nozzle (the concentration of the cleaning component required is high). When switching to the combination of storage tank and circulation means, the previous cleaning liquid is brought in less, so the cleaning effect is higher and it is compact but comparable to the conventional cleaning equipment with multiple conventional cleaning tanks It is a cleaning device that can perform cleaning with high effect.

  Further, in the cleaning apparatus of the present invention, one or more processes selected from a hydrophilization process, a hydrophilic process, a water repellent process, and a water repellent process are performed on the portion that comes into contact with the cleaning liquid. In addition, since the liquid runs out well, the cleaning effect is high because the amount of the previous cleaning liquid brought in when switching to the next storage tank / circulation means combination is reduced.

  In addition, the cleaning device of the present invention includes an impact applying unit that applies an impact to the cleaning tank and an object to be cleaned for draining the liquid after stopping the circulating cleaning unit. As a result, liquid residue can be prevented more effectively, and a high cleaning effect can be obtained.

  In addition, the cleaning device of the present invention may include a cleaning liquid storage tank in which the cleaning liquid is discharged after the cleaning liquid in one of the plurality of cleaning liquid storage tanks is transferred to another place and drained. The cleaning liquid in the cleaning liquid storage tank is transferred, and the cleaning liquid pre-feeding means that sequentially repeats the transfer and drainage of the cleaning liquid, and the cleaning liquid storage tank that has finally transferred and discharged the cleaning liquid, Since the cleaning liquid introducing means is provided, the cleaning liquid can be used efficiently, and processing costs such as concentration, filtration, and purification can be kept low.

  In the cleaning apparatus of the present invention, the plurality of cleaning liquid storage tanks each include two or more liquid storage tanks connected in series, so that the capacity of the liquid storage tank placed under the cleaning tank is Even if it is small, a sufficient amount of cleaning liquid can be secured, and the height of the apparatus can be kept low. For example, it can be easily incorporated into a processing apparatus including a plating process, and the application range can be widened.

  Moreover, the cleaning apparatus according to the present invention is the cleaning apparatus according to claim 4, wherein the plurality of cleaning liquid storage tanks are connected in series, respectively. The liquid storage tanks are arranged such that the liquid storage tanks on the most downstream side of these liquid storage tanks are positioned from the bottom to the top in the order of the transfer and drainage, respectively, and the liquid storage on the most downstream side Pipes for transferring and draining each cleaning liquid to the liquid storage tank located one level below by using gravity in the second and subsequent liquid storage tanks from the bottom, and opening and closing provided in the pipes Since a sufficient amount of cleaning liquid can be secured even if the capacity of the liquid storage tank placed under the cleaning tank is small, the height of the apparatus can be kept low. Can be easily incorporated into processing equipment, etc. It is Rukoto basically because it is possible to transfer and drainage of the cleaning liquid by only the valve operation, it is possible to suppress equipment cost as low cost. Furthermore, there is no need to arrange pumps or control devices for supplying the cleaning liquid near the cleaning tank. For example, the storage tanks at the most downstream side of these storage tanks are arranged at locations away from the cleaning tank. Since it is possible to centrally arrange the pumps in the vicinity, for example, it is easy to replace the conventional cleaning device in the surface treatment line, and it is possible to prevent deterioration of workability in the vicinity of the cleaning tank of the cleaning device. it can.

  FIG. 1A and FIG. 1B are model diagrams of a cleaning apparatus α according to the present invention.

  FIG. 1A is a model cross-sectional view at a location near the front as seen from the front, and FIG. 1B is a model cross-sectional view at a location near the back as seen from the back.

  The cleaning apparatus α has a plurality of shower nozzles 1a, 1b, 1c, and 1d inside the cleaning tank 1 and the cleaning tank 1, a drain port 1f at the bottom of the cleaning tank 1, and a cleaning liquid downstream of the drain port 1f. Circulating and supplying the storage tank and the cleaning liquid in the cleaning liquid storage tank to the shower nozzles 1a, 1b, 1c, and 1d through the pipes connected to the shower nozzles 1a, 1b, 1c, and 1d The cleaning device includes a plurality of combinations of a storage tank and a circulation unit including a cleaning liquid storage tank and a circulating cleaning unit connected to the cleaning liquid storage tank.

  That is, the shower nozzles 1a, 1b, 1c, and 1d are respectively connected to the pump 2a, the washing tank lower liquid receiving tank 4a, the pump 3a, and the liquid storage tank via pipes 1a1, 1b1, 1c1, and 1d1, respectively. 7a-combination of pump 2a, pump 2b-lower receiving tank 4b-pump 3b-storage tank 7b-combination of pump 2b, pump 2c-lower receiving tank 4c-pump 3c-storage tank 7c- A combination of a pump 2c and a combination of a pump 2d, a washing tank lower receiving tank 4d, a pump 3d, a liquid storage tank 7d, and a pump 2d are connected. Among these, the washing tank lower liquid receiving tanks 4a to 4d and the liquid storage tanks 7a to 7d constitute a washing liquid storage tank, and the pumps 2a, 2b, 2c and 2d, the pumps 3a, 3b, 3c and 3d, and the piping are Circulating cleaning means.

  Here, the washing tank lower liquid receiving tank 4a and the liquid storage tank 7a, which are connected in series with each other in this way, from the washing tank lower liquid receiving tank 4b and the liquid storage tank 7b, From the cleaning tank lower liquid receiving tank 4c and the liquid storage tank 7c, and from the cleaning tank lower liquid receiving tank 4d and the liquid storage tank 7d, the amount of each cleaning liquid is large. In addition, since the height of the liquid receiving tank below the washing tank can be reduced and the size can be reduced, a sufficient amount of washing liquid can be secured even if the capacity of the liquid storage tank placed under the washing tank 1 is small, Further, the height of the apparatus can be kept low, and for example, it can be easily incorporated into a processing apparatus including a plating process, and the application range can be widened.

  Further, among the storage tanks connected in series, the storage tank 7a, the storage tank 7b, the storage tank 7c, and the storage tank 7d which are the storage tanks on the most downstream side are the transfer and drainage described later. Are arranged in order from bottom to top.

  Further, the cleaning device α selects one liquid storage tank / circulation means combination from a combination of a plurality of liquid storage tanks / circulation means, and allows only the selected cleaning liquid storage tank from the drain port. The cleaning liquid is supplied, and only the circulating cleaning means connected to the selected cleaning liquid storage tank is operated to perform cleaning, and then sequentially switched to another liquid storage tank / circulation means combination. Repeatedly, there is a combination selection means (not shown), but such a combination selection means is provided immediately below the drainage port 1f of the cleaning tank 1, and the flow path switching mechanism A according to the technique described in JP-A-2001-347235, Each pump 2a-2d and pump 3a-3d are controlled.

  Further, when the combination selection unit is switched, the pumps 2a to 2d and the pumps 3a to 3d of the circulation cleaning unit are stopped, and then the cleaning liquid in the pipes near the shower nozzles 1a, 1b, 1c and 1d is piped. Is returned to the cleaning tank lower liquid receiving tanks 4a to 4d, which are connected to the cleaning liquid storage tanks, and then switched to the next storage tank / circulation means combination after a predetermined time, and the pipes 1a1, 1b1, 1c1 and 1d1 lower wash tank receiving tanks 4a, 4b, 4c and 4d at a position higher than the upper edge and lower than all shower nozzles 1a, 1b, 1c and 1d The valves 5a, 5b, 5c, and 5d provided in the branch pipes 6a, 6b, 6c, and 6d that are branched at the respective positions and led into the liquid receiving tanks below the cleaning tank are respectively controlled. Also It is.

  Here, such a combination selection means can be composed of a timer device and various relay devices, or a microcomputer (a combination of various relay devices as required), but it is easy to maintain, change, add operation specifications, etc. It is preferable to use a microcomputer, and the combination selection means in the cleaning apparatus α uses a microcomputer, and also serves as various control mechanisms described later.

  In such a cleaning apparatus α, if one or more processes selected from a hydrophilic process, a hydrophilic process, a water repellent process, and a water repellent process are performed on a portion in contact with the cleaning liquid, Since the liquid becomes easy and the residual liquid is reduced, mixing into the cleaning water in the subsequent process is reduced, and a high cleaning effect is obtained.

  As such hydrophilization processing and hydrophilization treatment, a polyvinyl alcohol film having a hydrophilic property to polypropylene resin or vinyl chloride resin, which is a resin used in the cleaning tank 1 and piping of the cleaning apparatus α (Nippon Synthetic Chemical) And the like, or a hydrophilic treatment in which treatment is performed with a hydrophilic treatment agent composed of titania, silica, silicon (TOTO, etc.).

  In addition, for the water repellent treatment and water repellent treatment, a silicone resin paint (manufactured by NTT Advanced Technology Co., Ltd.) or hydrophobic silica is used for the resin used in the cleaning tank 1 and piping of the cleaning device α. A water repellent (Nikka Chemical Co., Ltd.) is applied, or surface treatment is performed with a fluorine coating agent (Fluoro Technology Co., Ltd.).

  In this example, a polyvinyl alcohol film (manufactured by Nippon Synthetic Chemical Co., Ltd.) is pasted on the inner surface of the cleaning tank 1 as a hydrophilic treatment, and a silicone resin made by NTT Advanced Technology Co., Ltd. is used in places where film sticking is difficult due to unevenness. A water-repellent finish is applied with a paint.

  Furthermore, in such a cleaning apparatus α, after stopping the circulation cleaning means, the cleaning tank 1 and the object to be cleaned are provided with an impact applying means for applying an impact for draining the liquid. Since the residual liquid is reduced, mixing into the cleaning water in the subsequent process is reduced, and a high cleaning effect is obtained.

  Such an impact applying means can be constituted by various actuators or a combination of various actuators and a hammer.

  In the cleaning device α, a hammer device 8a, which is a combination of an actuator (not shown) and a hammer, is provided near the upper edge of the cleaning tank 1 as an impact applying means for applying an impact to the cleaning tank 1, and a plated product 10 to be cleaned is provided. A hammer device 8b in which an actuator (not shown) and a hammer are combined as an impact applying means for applying an impact to the plated product 10 through a large number of hangers 11 placed at the hanger 11 stop position above the cleaning tank 1. Each has.

  Further, after the cleaning liquid in one cleaning liquid storage tank among the plurality of cleaning liquid storage tanks of the cleaning apparatus α is transferred to a different place and drained, another cleaning liquid storage liquid is stored in the cleaning liquid storage tank from which the cleaning liquid has been drained. Cleaning liquid pre-feeding means for transferring the cleaning liquid in the tank and repeating the transfer and draining of the cleaning liquid in sequence, and cleaning liquid introducing means for introducing a new cleaning liquid into the cleaning liquid storage tank that has finally transferred and discharged the cleaning liquid. Since the cleaning liquid can be used effectively and the burden on the subsequent processing (concentration processing, ion exchange processing, etc.) can be reduced, the surface processing system using the cleaning apparatus α can be reduced. The running cost can be reduced, and the required post-processing apparatus can be reduced in size and cost.

  The cleaning device α is a valve provided in a pipe 7a1 for transferring the cleaning liquid inside to another process (concentration process) (not shown) provided at the bottom of the liquid storage tank 7a as such cleaning liquid forward-feeding means. 7a2, the bottom of the liquid storage tank 7b and the valve 7b2 provided in the pipe 7b1 provided to be led to the liquid storage tank 7a, the bottom of the liquid storage tank 7c and so as to be led to the liquid storage tank 7b The valve 7c2 provided in the provided pipe 7c1 and the valve 7d2 provided in the pipe 7d1 provided at the bottom of the liquid storage tank 7d and led to the liquid storage tank 7c are controlled.

  When the valve 7b2 is operated and opened, the cleaning liquid in the liquid storage tank 7b is stored in the liquid storage tank 7a by gravity, and when the valve 7c2 is operated and opened, the cleaning liquid in the liquid storage tank 7c is stored by gravity. Since the cleaning liquid in the liquid storage tank 7d can be transferred and drained to the liquid storage tank 7c by gravity by further opening the valve 7d2 by operating the valve 7d2, expensive equipment such as a pump. Is unnecessary, and the apparatus itself is compact.

  The cleaning liquid introduction means is provided so as to be guided to the liquid storage tank 7d, and controls a valve 12a provided in the pipe 12 for introducing a new cleaning liquid into the liquid storage tank 7d.

  These cleaning liquid advancement means and cleaning liquid introduction means can be composed of a timer device and various relay devices, or a microcomputer (in combination with various relay devices as required). It is preferable to use a microcomputer from the viewpoint of easiness, and the cleaning liquid forward feeding means and the cleaning liquid introducing means in this cleaning apparatus α are also used by the microcomputer constituting the above-described combination selection means.

  Next, cleaning by such a cleaning apparatus α will be described (in this example, all pumps are stopped and all valves are closed, however, the flow path switching mechanism A is connected to the drain port 1f. The cleaning liquid starts from a state of flowing into the pipe Aa provided above the cleaning tank lower liquid receiving tank 4a).

  The washing tank 1 is loaded with a hanger 11 in which a large number of plated products 10 to be cleaned are placed through a plating process and a plating solution recovery process, and is stopped at the hanger 11 stop position shown in FIG. To do.

  The pump 2a and the pump 3a are operated, and the cleaning liquid in the liquid storage tank 7a is sprayed by the pump 2a through the pipe 1a1 to the plated product 10 by the shower nozzle 1a, and after washing the plated product 10, the drain port It flows from 1f to the washing tank lower liquid receiving tank 4a through the pipe Aa by the flow path switching mechanism A. The cleaning liquid received in the washing tank lower liquid receiving tank 4a is returned to the liquid storage tank 7a again by the piping provided at the bottom of the lower washing tank liquid receiving tank 4a and the pump 3a, and circulates in the same manner. In this example, since the capacity of the pump 3a is larger than the supply amount of the cleaning liquid to the lower cleaning tank liquid receiving tank 4a, it is sufficient even if the capacity of the lower cleaning tank liquid receiving tank 4a is small.

  The cleaning process with the cleaning liquid in the liquid storage tank 7a is performed for a predetermined time (by a microcomputer timer in the combination selection means), a predetermined flow rate (by a measurement result by a flow meter not shown), or According to the analysis result of each parameter of the cleaning liquid (by an analyzer not shown), when the end condition is reached, the combination selection unit stops the pump 2a as the circulating cleaning unit, and thereby stops the supply of the cleaning liquid to the shower nozzle 1a. At the same time, the combination selection means opens the valve 5a. As a result, the cleaning liquid in the pipe 1a1 near the shower nozzle 1a is sent back to the cleaning tank lower liquid receiving tank 4a, which is a cleaning liquid storage tank to which the pipe is connected, via the branch pipe 6a.

  Further, the hammer device 8a and the hammer device 8b, which are impact applying means, are operated to give an impact to the hanger 11 on which a large number of the washing tank 1 and the plating-treated product 10 are laid, and the washing tank 1 and the plating-treated product. 10 and the washing liquid adhering to the hanger 11 fall and are collected in the washing tank lower liquid receiving tank 4a.

  The cleaning liquid that has been sent back or recovered to the lower tank receiving liquid tank 4a in this manner is recovered in the liquid storage tank 7a by the pump 3a. After the time when the cleaning liquid to be collected / returned is exhausted (in this example, it is measured in advance and set in the combination selection means), the combination selection means closes the valve 5a, stops the pump 3a, and stores the next storage. Select the liquid tank / circulation means and operate it.

  That is, the combination selection unit controls the flow path switching mechanism A so that the cleaning liquid from the drain port 1f flows into the pipe Ab provided above the cleaning tank lower liquid receiving tank 4b.

  Subsequently, the pump 2b and the pump 3b are operated, and the cleaning liquid in the liquid storage tank 7b is sprayed to the plated product 10 by the shower nozzle 1b through the pipe 1b1 by the pump 2b, and the plated product 10 is washed and then drained. It flows from the opening 1f to the washing tank lower liquid receiving tank 4b through the pipe Ab by the flow path switching mechanism A. The cleaning liquid received in the washing tank lower liquid receiving tank 4b is returned to the liquid storage tank 7b again by the piping provided at the bottom of the lower washing tank liquid receiving tank 4b and the pump 3b, and circulates in the same manner. In this example, the capacity of the pump 3a is larger than the supply amount of the cleaning liquid to the cleaning tank lower liquid receiving tank 4a.

  The cleaning process with the cleaning liquid in the liquid storage tank 7b is performed for a predetermined time (by a microcomputer timer in the combination selection means), a predetermined flow rate (by a measurement result by a flow meter not shown), or According to the analysis result of each parameter of the cleaning liquid (by an analyzer not shown), when the end condition is reached, the combination selection unit stops the pump 2b as the circulating cleaning unit, and thereby stops the supply of the cleaning liquid to the shower nozzle 1b. At the same time, the combination selection means opens the valve 5b. Thus, the cleaning liquid in the pipe 1b1 near the shower nozzle 1b is sent back to the cleaning tank lower liquid receiving tank 4b, which is a cleaning liquid storage tank to which the pipe is connected, via the branch pipe 6b.

  Further, the hammer device 8a and the hammer device 8b, which are impact applying means, are operated to give an impact to the hanger 11 on which a large number of the washing tank 1 and the plating-treated product 10 are laid, and the washing tank 1 and the plating-treated product. 10 and the washing liquid adhering to the hanger 11 fall and are collected in the washing tank lower liquid receiving tank 4b.

  The cleaning liquid fed back to or recovered in the cleaning tank lower liquid receiving tank 4b in this way is recovered in the liquid storage tank 7b by the pump 3b. After the time when the cleaning liquid to be collected / returned is exhausted (in this example, it is measured in advance and set in the combination selection means), the combination selection means closes the valve 5b, stops the pump 3b, and stores the next storage. Select the liquid tank / circulation means and operate it.

  Similarly to the above, the combination selection unit controls the flow path switching mechanism A so that the cleaning liquid from the drain port 1f flows to the pipe Ac provided above the cleaning tank lower liquid receiving tank 4c.

  Next, the pump 2c and the pump 3c are operated, and the cleaning liquid in the liquid storage tank 7c is sprayed to the plated product 10 by the shower nozzle 1c through the pipe 1c1 by the pump 2d, and the drained liquid is washed after the plated product 10 is cleaned. It flows from the mouth 1f to the washing tank lower liquid receiving tank 4c through the pipe Ac by the flow path switching mechanism A. The cleaning liquid received in the washing tank lower liquid receiving tank 4c is returned to the liquid storage tank 7c again by the piping provided at the bottom of the lower washing tank liquid receiving tank 4c and the pump 3c, and circulates in the same manner. In this example, the capacity of the pump 3c is larger than the supply amount of the cleaning liquid to the lower cleaning tank receiving tank 4c.

  The cleaning process with the cleaning liquid in the liquid storage tank 7c is performed for a predetermined time (by a microcomputer timer in the combination selection means: this example) or a predetermined flow rate (by a measurement result by a flow meter not shown). Alternatively, the combination selection means stops the pump 2c as the circulation cleaning means when the end condition is reached according to the analysis result of each parameter of the cleaning liquid (by an analyzer not shown), and thereby the cleaning liquid to the shower nozzle 1c is stopped. As the supply stops, the combination selection means opens the valve 5c. Accordingly, the cleaning liquid in the pipe 1c1 near the shower nozzle 1c is sent back to the cleaning tank lower liquid receiving tank 4c, which is a cleaning liquid storage tank to which the pipe is connected, via the branch pipe 6c.

  Further, the hammer device 8a and the hammer device 8b, which are impact applying means, are operated to give an impact to the hanger 11 on which a large number of the washing tank 1 and the plating-treated product 10 are mounted, and the washing tank 1 and the plating-treated product. 10 and the washing liquid adhering to the hanger 11 fall and are collected in the washing tank lower liquid receiving tank 4c.

  The cleaning liquid that has been sent back to or collected in the lower tank receiving liquid tank 4c in this way is collected in the liquid storage tank 7c by the pump 3c. After the time when the cleaning liquid to be collected / returned is exhausted (in this example, it is measured in advance and set in the combination selection means), the combination selection means closes the valve 5c, stops the pump 3c, and stores the next storage. Select the liquid tank / circulation means and operate it.

  Similarly to the above, the combination selection unit controls the flow path switching mechanism A so that the cleaning liquid from the drain port 1f flows into the pipe Ad provided above the cleaning tank lower liquid receiving tank 4d.

  Next, the pump 2d and the pump 3d are operated, and the cleaning liquid in the liquid storage tank 7d is sprayed to the plated product 10 by the pump 2d through the pipe 1d1 and the shower nozzle 1d, and the plated product 10 is washed and then drained. It flows from the opening 1f to the washing tank lower liquid receiving tank 4d through the pipe Ad by the flow path switching mechanism A. The cleaning liquid received in the cleaning tank lower liquid receiving tank 4d is returned to the liquid storage tank 7d again by the piping provided at the bottom of the lower cleaning tank liquid receiving tank 4d and the pump 3d, and circulates in the same manner. In this example, the capacity of the pump 3d is larger than the supply amount of the cleaning liquid to the cleaning tank lower liquid receiving tank 4d.

  The cleaning process with the cleaning liquid in the liquid storage tank 7d is performed for a predetermined time (by a microcomputer timer in the combination selection means), a predetermined flow rate (by a measurement result by a flow meter not shown), or The combination selection means stops the pump 2d as the circulation cleaning means when the end condition is reached according to the analysis result of each parameter of the cleaning liquid (by an analyzer not shown), thereby stopping the supply of the cleaning liquid to the shower nozzle 1d. At the same time, the combination selection means opens the valve 5d. Thus, the cleaning liquid in the pipe 1d1 near the shower nozzle 1d is sent back to the cleaning tank lower liquid receiving tank 4d, which is a cleaning liquid storage tank to which the pipe is connected, via the branch pipe 6d.

  Further, the hammer device 8a and the hammer device 8b, which are impact applying means, are operated to give an impact to the hanger 11 on which a large number of the washing tank 1 and the plating-treated product 10 are laid, and the washing tank 1 and the plating-treated product. 10 and the washing liquid adhering to the hanger 11 fall and are collected in the washing tank lower liquid receiving tank 4d.

  The cleaning liquid that is sent back to or collected in the lower tank receiving liquid tank 4d in this way is collected in the liquid storage tank 7d by the pump 3d. After the time when the cleaning liquid to be collected / returned is exhausted (measured in advance and set in the combination selection unit), the combination selection unit performs the above-described series of cycles again. The hanger 11 on which a large number of plated products 10 located in 1 were laid was moved to the next process (for example, process), and a large number of unwashed plated products 10 were laid in the cleaning tank 1. The hanger 11 is carried in.

  When such a series of cleaning is performed, the cleaning liquid in the liquid storage tank 7a, the cleaning liquid in the liquid storage tank 7b, the cleaning liquid in the liquid storage tank 7c, and the cleaning liquid in the liquid storage tank 7d are concentrated in this order. Components requiring cleaning that have adhered to the plated product 10 and the hanger 11 are present. For this reason, the cleaning liquid introducing means checks the cleaning liquid in the liquid storage tank 7a every cycle or every several cycles consisting of the above four cleaning steps, or the necessary cleaning components in the cleaning liquid are checked. Opening the valve 7a2 for the necessary time for transferring and draining (operating a pump (not shown) connected to the pipe 7a1 if necessary), for example, transferring it to a concentrating step and draining it, and then draining the cleaning fluid The cleaning liquid in the liquid storage tank 7b, which is another cleaning liquid storage tank, is transferred to the liquid storage tank 7a by opening the valve 7b2 for a time required for liquid transfer / drainage, and then the liquid storage tank from which the cleaning liquid is drained The cleaning liquid in the liquid storage tank 7c is transferred to the tank 7c by opening the valve 7c1 for a time required for liquid transfer / drainage, and then the liquid storage tank 7c from which the cleaning liquid is drained is another liquid storage tank. The cleaning liquid in the tank 7d is transferred through the valve 7d2. Drainage is transported by opening time required, further, by opening the valve 12a, to introduce a new cleaning liquid storage tank 7d. By doing so, extremely effective cleaning can be performed with the minimum required cleaning liquid.

It is a model figure which shows the washing | cleaning apparatus (alpha) based on this invention. (A) It is model sectional drawing in the location near the front seen from the front. (B) It is model sectional drawing in the location near the back surface seen from the back surface. It is model sectional drawing of the flow-path switching mechanism A based on a prior art (it uses also with the washing | cleaning apparatus of this invention). It is a bottom view of one half side part of channel change mechanism A concerning a prior art. It is a front view of flow path switching mechanism A vicinity of the washing | cleaning apparatus provided with the flow path switching mechanism which concerns on a prior art. FIG. 5 is a plan view of FIG. 4 with the cleaning tank omitted.

Explanation of symbols

α An example of a cleaning apparatus according to the present invention 1 Cleaning tank 1a, 1b, 1c, 1d Shower nozzle 1a1, 1b1, 1c1, and 1d1 Piping 1f Drainage port 2a, 2b, 2c, 2d Pump 3a, 3b, 3c, 3d Pump 4a, 4b, 4c, 4d Washing tank lower receiving tank 5a, 5b, 5c, and 5d Valve 6a, 6b, 6c, and 6d Branch pipe 7a, 7b, 7c, 7d Liquid storage tank 8a, 8b Hammer device 10 Plated product 11 Hanger 12 Piping 12a Valve

Claims (6)

A cleaning tank, a shower nozzle inside the cleaning tank, a drain port at the bottom of the cleaning tank, a cleaning liquid storage tank downstream of the drain port, and a cleaning liquid in the cleaning liquid storage tank are connected to the shower nozzle A cleaning device comprising a circulating cleaning means for circulatingly supplying the shower nozzle via a pipe,
A plurality of storage tank / circulation means combinations comprising the cleaning liquid storage tank and the circulating cleaning means connected to the cleaning liquid storage tank; and
Selecting one liquid storage tank / circulation means combination from the combination of the plurality of liquid storage tanks / circulation means, and supplying the cleaning liquid from the drainage port only to the selected cleaning liquid storage tank; It is equipped with a combination selection means that performs cleaning by operating only the circulating cleaning means connected to the selected cleaning liquid storage tank, and then sequentially switches to another liquid storage tank / circulation means combination, and thereafter repeats in the same manner. ing,
In the cleaning device,
When the combination selection unit stops the circulating cleaning unit at the time of switching, the cleaning liquid in the pipe near the shower nozzle is sent back to the cleaning liquid storage tank to which the pipe is connected, and then for a predetermined time. A cleaning device, which is to be switched to a combination of the next storage tank and circulation means later.   2. The process according to claim 1, wherein at least one treatment selected from a hydrophilic treatment, a hydrophilic processing treatment, a water repellency treatment, and a water repellency treatment treatment is applied to a portion that comes into contact with the cleaning liquid. Cleaning equipment.   2. The apparatus according to claim 1, further comprising an impact applying unit that applies an impact to the cleaning tank and an object to be cleaned for draining the liquid after the circulating cleaning unit is stopped. Item 3. The cleaning device according to Item 2. After the cleaning liquid in one of the plurality of cleaning liquid storage tanks is transferred to another place and drained,
The cleaning liquid in the other cleaning liquid storage tank is transferred to the cleaning liquid storage tank from which the cleaning liquid has been discharged, and the cleaning liquid pre-feeding means that sequentially repeats the transfer and drainage of the cleaning liquid, and finally the transfer and discharge of the cleaning liquid. The cleaning apparatus according to any one of claims 1 to 3, further comprising cleaning liquid introducing means for introducing a new cleaning liquid into the cleaning liquid storage tank in which the liquid has been supplied.   The cleaning apparatus according to any one of claims 1 to 4, wherein the plurality of cleaning liquid storage tanks are composed of two or more storage tanks connected in series.   The plurality of cleaning liquid storage tanks are each composed of two or more liquid storage tanks connected in series, and the storage tanks on the most downstream side of these storage tanks are respectively arranged in the order of the transfer and drainage. Each of the cleaning liquids is arranged so as to be located on the upper side of the storage tank, and the liquid storage tanks located on the lowermost side among the storage tanks on the most downstream side are moved to the liquid storage tank located one lower by using gravity. The cleaning apparatus according to claim 4, further comprising: a pipe for transferring and draining the liquid and a valve device that can be opened and closed provided in the pipe.

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