JP4864729B2 - Mixing equipment - Google Patents

Description

TECHNICAL FIELD The present invention relates to a mixing apparatus for adjusting putty for putty construction for the purpose of groundwork adjustment in interior work, painting work, etc., and starch- based adhesive for attaching wall coverings. .

One end of the shaft part is tightened and attached to the chuck part of the electric drill to adjust the starch adhesive for adhering wall coverings and putty for base adjustment, and the other end is stirred. A stirring rod for wallpaper glue has already been proposed by rotating a blade (for example, Patent Document 1). When a stirrer with a stirring blade inserted into the rotating shaft of such an electric drill is used for the putty, it rotates at high speed, so that air is embraced in the putty, and bubbles increase with time. There was a disadvantage that the putty adhesion strength was weakened.

  In addition, the present applicant has already proposed a mixing apparatus that stirs and mixes putty for putty construction for the purpose of groundwork adjustment, for example, in interior work, a painting factory, and the like (see, for example, Patent Document 2). This mixing apparatus is equipped with a rotary table for horizontally rotating a mixing container holding a mixture such as putty and water, and the other end of an inverted U-shaped stirring tool holding a stirring blade at one end. And a pivot. The pivot portion swings within a certain angle range, gives a stirring motion in the horizontal plane to the stirring tool in which the stirring blades are arranged in the container, and mixes the mixture in the mixing container between the container rotation by the rotary table and the stirring tool swing. The mixture in the container is agitated and mixed by relative motion.

In addition, as an improvement technique of this mixing apparatus, a mixing apparatus that can uniformly and efficiently stir and mix even a small amount of a mixture, and a mixing apparatus that achieves compactness and weight reduction (see Patent Document 3) are also proposed. .
JP2003-210964A Japanese Utility Model Publication No. 7-24433 JP 2000-126574 A

  The mainstream of current putty for base preparation is gypsum-based powder curing putty. This is mainly composed of hemihydrate gypsum, and when mixed with water, the main component hemihydrate gypsum changes to dihydrate gypsum and hardens when a certain curing time is reached. Such a putty is prepared by mixing and stirring the putty powder and water, taking out the adjusted putty little by little into the putty tray, and putting it into the putty to prepare the base.

  However, the viscosity of the putty adjusted by mixing and stirring gradually increases due to the hardening of gypsum, the aggregation of the inorganic filler contained in the putty, the intergranular aggregation of the adhesive component, and the like. This increase in viscosity is called “putty tightening”, but putty work with putty that is tightening must be extended with force, so many workers add water to lower the viscosity and putty. Although it is constructed, there is a problem that meat waste occurs due to the water added.

In addition, not only powder putty but also paste adhesive (hereinafter referred to as “paste paste”) is diluted with water to adjust the starch- based adhesive with a specified concentration. Also used for. That is, the paste-like paste that is an adhesive for wallpaper construction is used by adding water and mixing well to a prescribed concentration. For example, the paste-like paste is a thick paste-like paste, and the paste-like paste used on business is 18 kg, and the dilution water is 50-60% by weight, so the total amount is 27-29 kg. In order to make a uniform adjustment with a stirrer in which a stirring blade is inserted on the rotating shaft of the electric drill as in 1, great labor is required. Moreover, when mixing with the stirrer using an electric drill, the user also pointed out that the glue was damaged and the initial adhesive force of glue itself was low.

  However, when diluting and mixing using a conventional mixing device, water and powdery putty and water and paste paste are separated from each other in the initial stage of mixing. A mixture of liquid, paste, or powder sometimes jumped out of the container. Therefore, the operator prepares the prescribed dilution water, puts about 1/3 of the dilution water into the container at the beginning of stirring, drives the mixing device, and after mixing to some extent, puts the remaining dilution water. In some cases, it was devised to mix.

  An object of this invention is to obtain the mixing apparatus which can be stirred on desirable conditions according to the material and condition to be mixed. Specifically, to obtain a mixing device that can be putty in which “putty tightening” is unlikely to occur, and to obtain a mixing device that does not cause the mixture to jump out of the container due to the shaking of the stirring tool. Objective.

The mixing apparatus according to the first aspect of the present invention contains a main body having one or more driving sources, a rotary table rotated on the main body in a horizontal plane by the driving sources, and a material to be mixed. A holding means for detachably holding the outer bottom portion of the container on the rotary table, a swinging shaft that swings within a certain angle range on the main body side by the drive source, and a container held on the rotary table. A substantially inverted U-shaped stirrer that is detachably attached to the swing shaft at the other end so that the one end is positioned, and the material to be mixed is rotated by a rotating table and swirled by the stirrer. In a mixing device that stirs and mixes by relative movement with
Table rotation speed changing means for changing the rotation speed of the rotary table, and swing speed changing means for changing the swing speed of the swing shaft,
The table rotation speed changing means includes control means for repeatedly controlling driving / stopping of the rotation speed of the rotation table according to a predetermined time,
The swing speed changing means includes control means for repeatedly controlling driving / stopping of the swing speed of the swing shaft according to a predetermined time.
The drive source is only provided in the main body,
The table rotation speed changing means and the swing speed changing means are drive source rotation speed changing means for changing the rotation speed of the one drive source,
The drive source rotational speed changing means includes intermittent drive control means that repeats driving / stopping according to a predetermined time for the rotational speed of the drive source,
The intermittent drive control means includes a control for performing inching drive every 3 to 10 seconds to incline the rotary table in conjunction with the swinging motion of the swing shaft by 2 ° to 10 °. It is.

A mixing apparatus according to a second aspect of the present invention is the mixing apparatus according to the first aspect, wherein the table rotational speed changing means includes a control means for controlling the rotational speed of the rotary table to a speed lower than an upper limit rotational speed,
The swing speed changing means includes control means for controlling the swing speed of the swing shaft to a speed lower than an upper limit swing speed.

According to a third aspect of the present invention, there is provided the mixing apparatus according to the first or second aspect , wherein the intermittent drive control means moves the rotary table linked to the swing motion of the swing shaft at a speed lower than the upper limit rotational speed. This includes control for rotating the motor 10 to 20 times every 2 to 8 minutes.

According to a fourth aspect of the present invention, there is provided the mixing apparatus according to any one of the first to third aspects , wherein the drive source rotational speed changing means determines the rotational speed of the drive source from the start of driving to a predetermined time. It is characterized by including a deceleration drive control means for controlling to a speed lower than half of the upper limit rotational speed.

According to a fifth aspect of the present invention, there is provided a mixing apparatus according to the first aspect, wherein the putty stirring tool and the starch adhesive stirring tool are exchanged according to the material to be mixed. It is characterized by being arranged as possible.

A mixing apparatus according to the invention described in claim 6 is provided with a blade for generating a flow in the material to be mixed by rocking at one end of the stirrer according to claim 1 or 5 ,
This blade is characterized in that a tip bottom portion far from the center of swinging moves on a trajectory passing through the approximate center of the rotary table by swinging of the stirring tool.

According to a seventh aspect of the present invention, there is provided a mixing apparatus according to the sixth aspect , wherein the blade according to the sixth aspect has a notch that overflows a material to be mixed at the time of rocking formed in a part of the upper edge. It is characterized by.

  The present invention can provide a mixing apparatus capable of stirring under desirable conditions depending on the materials to be mixed and the situation. Specifically, it is possible to obtain a mixing device that can be putty in which “putty tightening” is unlikely to occur, and to obtain a mixing device in which the mixture does not jump out of the container due to the swinging of the stirring tool. it can.

  In the present invention, a main body having one or more drive sources, a rotary table rotated on the main body in a horizontal plane by the drive sources, and an outer bottom portion of a container containing a material to be mixed on the rotary table. Holding means detachably holding, a swinging shaft swinging within a certain angle range on the main body side by the drive source, and the other end so that one end is located in the container held on the rotary table A substantially inverted U-shaped stirrer that is detachably attached to the rocking shaft at the portion, and the material to be mixed is stirred and mixed by relative movement between the rotation of the container by the rotary table and the rocking of the stirrer The apparatus includes table rotation speed changing means for changing the rotation speed of the rotary table, and swing speed changing means for changing the swing speed of the swing shaft. For this reason, the rotation speed of the table and the swing speed of the swing shaft can be changed, and stirring can be performed under desirable conditions according to the material to be mixed and the situation.

  The table rotation speed changing means of the present invention may be any means that changes the rotation speed of the rotation table, and may be any means that controls the rotation speed of the rotation table by slowing down, speeding up, or stopping. Including the one that changes the rotational speed transmitted to the rotary table stepwise or steplessly by the speed increaser / decelerator combined with the gear, crank, belt, etc. of the driving force, but changes the rotational speed of the drive source itself However, it is possible to simplify the mechanism and to make finer changes. For example, a DC brushless motor can be used as the drive source, and a control unit such as a microprocessor for controlling the rotation speed of the motor can be installed.

  The swing speed changing means of the present invention may be any means that changes the swing speed of the swing shaft, and controls the swing speed of the swing shaft by slowing, speeding up or stopping. The table includes a table in which the rocking speed transmitted to the rocking shaft is changed stepwise or steplessly by a speed increaser / decelerator combined with a gear, a crank, a belt, or the like of a driving force from a driving source. Similar to the rotation speed changing means, changing the rotation speed of the drive source itself can simplify the mechanism and enable a finer change. For example, a DC brushless motor can be used as the drive source, and a control unit such as a microprocessor for controlling the rotation speed of the motor can be installed.

  As control of the rotational speed of the drive source of the table rotational speed changing means and / or the rotational speed of the swing speed changing means, the rotational speed of the rotary table and / or the swing speed of the swing shaft is set at a predetermined time. Accordingly, there are intermittent control for repeatedly controlling driving and stopping, and deceleration control means for controlling the rotation speed of the rotary table and / or the swing speed of the swing shaft to a speed lower than the upper limit rotational speed.

  As a preferred embodiment, the table rotation speed changing means includes a control means for repeatedly controlling the driving speed and stopping of the rotation speed of the rotary table according to a predetermined time, and the swing speed changing means is the swing speed of the swing shaft. The control means for repeatedly controlling the driving / stopping according to a predetermined time is included. Accordingly, for example, even when gypsum-based powder-curing putty is mixed, the putty in which “putty tightening” hardly occurs can be obtained by intermittently repeating the driving and stopping of the rotary table and the stirring tool. In addition, since it is considered that the putty that has been repeatedly driven and stopped is forcibly delayed in curing, it has also been confirmed that the putty has a characteristic of being cured immediately when putty is applied.

In addition, in the case of repeatedly controlling the rotation speed of the rotary table and the rocking speed of the rocking shaft according to a predetermined time, the putty and starch- based adhesive etc. to be stirred and mixed, It is preferable to reliably maintain the stopped state. With high viscosity putty, starch- based adhesives, etc., due to their viscosity, rotation and swinging do not stop completely, and there are situations where they advance or are pushed back. In particular, in the pushed-back state, the stop position is shifted when driving from the stop, so that when the movement starts, a large load is applied to the drive source in an attempt to cancel the shift, which may cause a failure of the drive source. . For this reason, it is preferable to provide a restricting means for restricting the return of the rotating table and / or the swinging of the swinging shaft when stopping the swinging.

Furthermore, when the rotation of the rotary table and the swing of the swing shaft are compared, the swing shaft is larger in the state of being pushed back due to the viscosity of the putty or starch- based adhesive having a high viscosity. Includes a restricting means for restricting the rotation of the rotary table and the return of the swinging shaft in the stopped state, or a restricting means for restricting the return of the swinging shaft in the stopped state.

  For example, as these restricting means, there may be provided a brake means for stopping the movement of the rotary table or the stirring tool by a pad or the like, but the drive shaft of the drive source for driving the rotary table or the rotary table from the drive shaft. One of the rotation shafts provided in the drive transmission means that reaches the rotation axis of the rotation shaft is provided with a rotation direction restricting means for restricting the rotation direction, a drive shaft of a drive source that drives the swing shaft, and a swing from the drive shaft. It is more reliable and inexpensive to provide a rotation direction restricting means for restricting the rotation direction of any of the rotation shafts provided in the drive transmission means reaching the moving shaft.

  These rotation direction regulating means can be regulated electrically or mechanically. For example, if the drive source is a motor having a rotation control means such as a DC brushless motor, the rotation control means electrically detects the behavioral displacement of the drive shaft when stopped and restricts the behavior based on the displacement data. By incorporating a control program, the direction of rotation can be regulated electrically. In addition, for example, by installing a one-way clutch on any one or more of the rotation shafts such as the drive shaft of the drive source, the rotation shaft of the rotary table, the rotation shaft of the crank gear connected to the swing shaft through the crank. The direction of rotation can be regulated mechanically.

  In another preferred aspect of the present invention, the table rotation speed changing means includes control means for controlling the rotation speed of the rotary table to a speed lower than the upper limit rotation speed, and the swing speed changing means is the swing of the swing shaft. Examples include a deceleration drive control means for controlling the speed to a speed lower than the upper limit swing speed. Accordingly, the mixture to be mixed does not jump out of the container due to the swinging of the stirring tool at the initial stage of mixing, and the stirring and mixing can be performed well and quickly.

That is, the putty and starch- based adhesive mixed in the mixing apparatus of the present invention are separated from water and powdery putty and water and paste-like paste at the initial stage of mixing. In some cases, the mixture such as liquid, paste, powder, etc. jumped out of the container. For this purpose, the table rotation speed changing means and the swing speed changing means suppress the rotation speed of the rotary table and the swing speed of the swing shaft in the initial stage of mixing, and slow down the respective speeds in the initial stage of mixing. Thus, the mixture can be prevented from jumping out of the container.

  Each speed in the present invention is such that water and powdery putty and paste-like paste are separated and are present in the container so that the mixture does not jump out of the container at the initial stage of mixing. It suffices to be controlled. Therefore, the drive speed is gradually increased from the start of the drive until the start of the drive while the mixture such as powdered putty and paste paste is mixed to some extent and has a viscosity that does not pop out even at the upper limit rotation speed. Control means for increasing, control means for regulating the rotational speed during the initial stage of driving, and the like may be provided.

  More preferably, the table rotation speed changing means includes control means for controlling the rotation speed of the rotary table from the start of driving to a predetermined time to a speed lower than half of the upper limit rotation speed, and the swing speed changing means is And control means for controlling the swing speed of the swing shaft from the start of driving to a predetermined time to a speed lower than half of the upper limit swing speed.

  Further, the drive source of the mixing device of the present invention may be any one that drives the rotary table and that that drives the swing shaft. A drive source may be used. As the drive source of the present invention, the rotary table and the swing shaft may be provided with separate drive sources, and the individual drive sources may be controlled. However, in order to individually control the speed of the rotary table and the swing shaft. In addition, if each of the drive sources is provided, and further each of a control mechanism or control means for controlling the speed of these drive sources is provided, the size of the resulting mixing apparatus itself becomes large and heavy, and the price as a product increases.

  Therefore, as a more preferable aspect, a drive source is provided only in the gluing device main body, and the table rotation speed change means and the swing speed change means are drive source rotation speed change means for changing the rotation speed of one drive source. Some are listed. Thereby, it is compact and lightweight, and can be manufactured at low cost.

  In other words, the table rotation and swing speed is driven by a single drive source, and the rotation speed of the drive source is changed stepwise or steplessly to thereby change the table rotation and swing speed stepwise or It can be changed steplessly. The drive source rotation speed changing means can be easily achieved by arranging a speed control circuit in association with the drive source (motor) or using a drive source (motor) incorporating the speed control circuit. As described above, for example, it is possible to use a DC brushless motor as the only drive source and to mount control means such as a microprocessor for controlling the rotational speed of the motor.

  As a preferred mode of the drive source rotation speed changing means of the present invention, the rotation speed of the drive source as individually indicated by the table rotation speed change means and the swing speed change means described above is set according to a predetermined time. Examples include intermittent drive control means that repeats driving and stopping, and those that include deceleration drive control means for controlling the rotational speed of the drive source from the start of driving to a predetermined time to a speed lower than the upper limit rotational speed. . More preferably, it is possible to control at a speed lower than half of the upper limit rotational speed.

  As the specific intermittent drive control of the drive source rotation speed changing means, it is sufficient if the rotation speed of the drive source is repeatedly driven and stopped according to a predetermined time. More specifically, when the mixture is allowed to stand after mixing, such as a gypsum-based powder-cured putty, the viscosity gradually increases due to the aggregation of the inorganic filler of the putty and the aggregation of the adhesive component (putty). When it is predicted that the putty will be tightened), it is possible to prevent the putty from being tightened by repeating the operations of moving a very small distance and stopping for a predetermined time.

  For example, after adjusting the putty by normal driving, intermittent driving in which the rotary table is moved with the blade several times every several seconds is repeatedly performed. Intermittent drive is performed until the mixed putty is completely cured, or it is driven for several seconds to several tens of seconds at a speed that does not bite bubbles in the middle. It becomes possible.

  As a specific intermittent drive control means, there is included a control for performing inching drive every 3 to 10 seconds for moving the rotary table interlocked with the swing motion of the swing shaft by 2 ° to 10 °. This is because it is difficult to prevent the putty from being tightened by intermittent driving of the rotary table of less than 2 °, and the problem of entrainment of bubbles occurs when the inching drive exceeds 10 °. In addition, the effect of preventing putty tightening can be achieved by driving every time less than 3 seconds, but there is a problem in energy saving due to excessive driving, and the putty is tightened by driving every time exceeding 10 seconds. This is because it is difficult to prevent.

  Another intermittent drive control means includes control for rotating the rotary table linked with the swing motion of the swing shaft 10 to 20 times at a speed lower than the upper limit rotational speed every 2 to 8 minutes. . This is to adapt to putty that is tight. The speed lower than the upper limit rotational speed may be any speed that does not cause bubble entrapment, and is preferably half or less of the upper limit rotational speed. Moreover, it is because the part which is not stirred by intermittent drive arises in the rotational drive less than 10 times. This is because when the rotational drive exceeds 20 times, the problem of entrainment of bubbles occurs. In addition, the effect of preventing putty tightening can be achieved by driving less than 2 minutes, but there is a problem in energy saving due to excessive driving, and the putty is tightened by driving every hour exceeding 8 minutes. This is because it is difficult to prevent.

  The other intermittent drive control means can be performed together with the above-described intermittent drive control means or independently. However, it is preferable to perform the other intermittent drive control means while performing the above-described intermittent drive control means. This not only ensures that the putty is prevented from being tightened, but also has the characteristics of ensuring the safety of the operator and preventing damage to the apparatus.

  That is, since the inching drive described above is driven every 3 to 10 seconds, it can be understood that the operator is performing intermittent drive control, but another intermittent drive control means is driven every few minutes. When an operator puts out putty in a container into a putty tray, it is sufficiently assumed that the operator does not notice that intermittent drive control is being performed. Therefore, by carrying out together with the above-mentioned inching drive, when taking out in small portions, the drive of intermittent drive control is stopped, so that the safety of the worker is maintained, and the spatula for subdivision etc. is left in the container. This prevents the device from being damaged.

  When another intermittent drive control means is used alone, preferably an alarm lamp, an alarm buzzer immediately before being driven to rotate at a speed lower than the upper limit rotational speed, in order to increase the safety of the operator at the time of taking out a small portion. One or more means for improving safety, such as driving the motor or the like, or gradually increasing the rotational speed is taken.

  As a specific deceleration drive control of the drive source rotational speed changing means, the rotational speed of the drive source from the start of driving to a predetermined time is set to a speed lower than the upper limit rotational speed, more preferably half of the upper limit speed. What is necessary is just to control to the speed below. For example, in the case of a mixing apparatus that performs mixing at an upper limit speed of 40 to 50 revolutions / min, after maintaining 20 to 25 revolutions / min for 30 to 80 seconds at the start of mixing, the rotation speed is increased to an upper limit speed of 40 to 50 revolutions / min. Control means for raising in a stepwise or stepless manner is performed.

  As a result, the rotation speed of the rotary table and the rocking speed of the rocking shaft are less than half of the upper limit speed from 30 to 80 seconds from the beginning of mixing. Since the paste is mixed and dissolved in water to increase the viscosity, the mixture does not jump out of the container even if the upper limit speed is reached thereafter. Moreover, since the time that is less than half of the upper limit speed is only 30 to 80 seconds from the initial stage of mixing, there is also an advantage that the mixing time is not significantly increased.

  That is, when the power source of the drive source is turned on, the speed is less than half of the upper limit speed from the initial mixing time to a predetermined time (30 to 80 seconds), and thereafter, the upper limit speed is reached. You may make it do.

  The intermittent drive control means and the deceleration drive control means may be set up with setting means so that the operator sets the speed control circuit of the drive source, but installed in a state where the control circuit cannot be rewritten. May be. For example, each control program is recorded in a recording means such as a ROM of a control circuit together with other control programs in a control means such as a microprocessor that controls the rotational speed of the motor, and the operator can set the manual setting drive mode, It may be possible to switch between a deceleration drive mode (initial drive mode) and an intermittent drive mode. Thereby, there is an advantage that the control system of the drive source is simplified and can be manufactured at a lower cost.

In another preferred embodiment of the present invention, as the agitator, a putty agitator and a starch adhesive agitator are arranged so as to be interchangeable depending on the material to be mixed. That is, the stirrer is replaced and used according to the material to be mixed. By using a stirrer for putty for the putty and a stirrer for glue for the glue for glue, it is possible to adjust a mixture free from bubbles.

  Specific examples of the stirrer include a stirrer provided with a blade that generates a flow in a material to be mixed by rocking at one end of the stirrer in order to improve stirring efficiency. In the present invention, preferably, the blade of the agitator moves on a trajectory in which the tip bottom portion far from the center of oscillation passes through the approximate center of the rotary table by the oscillation of the agitator. Thereby, since the area | region where a blade | wing rock | fluctuates becomes narrow, it becomes difficult to embrace a bubble. Since the rotary table is also rotating, the stirring blades pass through the container by making the number of rotations per unit time of the rotary table and the number of oscillations per unit time of the oscillation shaft not equal. There is no area to be removed, and a uniform mixture is obtained.

The relative speed between the rotary table and the stirring blades may be any speed that does not embed bubbles in the mixture, but when adjusting the adhesive for glue, stirring at low speed is better if possible. It is preferable that there is little decrease in. This is because the starch particles of the paste component are not easily broken by shearing, so that the adhesive performance is not lowered.

  In another preferred embodiment of the present invention, the blade is formed with a notch that overflows the material to be mixed at the time of rocking at a part of the upper edge. That is, by overflowing, the mixture is crushed into the corners of the container side wall by swinging, and performance does not deteriorate. Further, the upper mixture overflowed by the oscillation flows to the lower part and can be circulated and mixed efficiently.

1． Configuration FIG. 1 is an explanatory view showing a configuration of a mixing apparatus according to an embodiment of the present invention from a plane. FIG. 2 is an explanatory diagram showing a configuration from the front of FIG. FIG. 3 is an explanatory diagram showing the configuration of the drive system of FIG. FIG. 4 is an explanatory view showing a configuration of a putty stirring tool attached to the mixing apparatus of FIG.

  As shown in the figure, the mixing apparatus 10 of the present embodiment includes a main body 12 having a motor 11 as a driving source therein, a container 40 for storing the material to be mixed on the main body 12, and the container 40 being attached and detached. The rotary table 13 includes a holding tool that is freely held, and a substantially inverted U-shaped stirring tool 41 that is attached so that one end portion is positioned in the held container 40.

  The container 40 is held on the upper surface of the turntable 13 by a rising frame 14 formed along the outer periphery on the upper surface of the turntable 13 and an anchoring tool 17 that fixes the bottom outer peripheral wall of the container 40. The agitator 41 is detachably attached to the swing shaft 15 by the holder 18. The swing shaft 15 is supported via upper, middle, and lower three-stage ball bearings 19.

  The motor 11 is disposed with the drive shaft 16 facing downward, and a pinion (not shown) is attached to the tip of the drive shaft 16. The pinion has a gear head 27 arranged around the drive shaft of the motor 11. Via the rotation shaft 26 of the crank gear 25. The crank gear 25 meshes with a rotary table gear 24 provided on the rotary shaft 20 of the rotary table 13 to rotate the rotary table 13. The rotating shaft 20 is supported via two upper and lower ball bearings 29.

  A guide rail 21 concentric with the rotary shaft 20 is formed on the lower surface of the rotary table 13. A large number of followers 23 are arranged concentrically on the main body 12 of the mixing device 10 below the guide rail 21, and the rotary table 13 is supported via the guide rail 21. Each follower 23 is a wheel in which a groove into which the guide rail 21 is fitted is formed, and is attached to the main body 12 via a bearing bearing 28.

  The concentric followers 23 can smoothly rotate with a small driving force even if an excessive weight is held on the rotary table 13. Moreover, since the follower 23 substantially supports the load of the rotary table, the coaxiality of the rotary shaft 20 is not easily shifted over a long period of time, and can be used for a long period of time.

  One end of the connecting rod 30 is connected to a position eccentric with respect to the rotating shaft 26 of the crank gear 25. The connecting rod 30 is plate-shaped and has a curved planar shape so as not to collide with the adjacent motor 11 when it fluctuates with driving. The other end of the connecting rod 30 is fixed to the swing shaft 15 and is connected to the lever member 31 at a position eccentric to the swing shaft 15.

  The motor 11 as a drive source is a motor with a built-in speed control circuit. The manual setting drive mode, the initial drive mode (for paste paste), and the initial drive mode (for putty) are stored in advance in the ROM of the speed control circuit. Five programs of intermittent drive mode 1 and intermittent drive mode 2 are recorded, and the mode is switched from the menu screen of the input device (not shown) to any mode.

  In the initial drive mode (for paste paste), the rotation speed of the motor 11 is 20 rotations / min for 80 seconds, 30 rotations / min for 40 seconds, 35 rotations / min for 40 seconds, and 40 rotations / min as the upper limit. It is programmed to run continuously. The initial drive mode (for putty) is programmed so that the rotation speed of the motor 11 is 20 rotations / min for 30 seconds, 30 rotations / min for 30 seconds, and 40 rpm / min is the upper limit.

  Furthermore, intermittent drive mode 1 can be selected when the initial drive mode (for putty) is completed. After adjusting the putty in the initial drive mode (for putty), the rotary table and blade are moved about 3 °. It is programmed to repeat intermittent drive that stops for about 5 seconds. Intermittent drive mode 2 can also be selected when the initial drive mode (for putty) is completed. After adjusting the putty in the initial drive mode (for putty), the rotary table and blade are moved about 3 °, and about It is programmed to perform 24 rotations / min for 30 seconds every 5 minutes, repeating intermittent driving for 5 seconds. By selecting the intermittent drive mode 1, the putty is moved in a moving manner, so that it is possible to prevent the putty from being tightened. Further, when the putty is tightened even in the intermittent drive mode 1, the putty can be further prevented by stirring the entire putty at regular intervals in the intermittent drive mode 2.

A one-way clutch is mounted on the rotation shaft 26 of the crank gear 25 and the drive shaft 16 of the motor 11. This is because putty and starch- based adhesives with high viscosity do not stop rotating or swinging completely during intermittent driving, and may be pushed forward or pushed back. By mounting the, it is surely stopped and not pushed back even during intermittent driving. In order to reliably stop the motor during intermittent driving, the speed control circuit can be electrically operated by incorporating a control program that electrically detects the behavior displacement of the drive shaft at the time of stopping and regulates the behavior based on the displacement data. In this case, it is possible to eliminate the mounting of the one-way clutch between the rotating shaft 26 and the drive shaft 16.

  As shown in FIG. 4, the stirring tool 41 is a putty stirring tool. As shown in FIG. b, the stirrer 41 has a substantially L-shaped stirrer blade 42 at one end of a pipe member 46 bent like a question mark when viewed from the front, and the other end is not shown. Is detachably attached to the rocking shaft 15 of the mixing device 10. As shown in FIG. a, the agitating blade 42 is in the form of a single plate and is inclined with respect to the surface holding the bent portion of the pipe material 46. This is because the stirring blade is inclined with respect to the direction in which the container 40 rotates. However, since the stirring blade 42 oscillates at the peripheral edge of the container 40, the mixture flows while rotating with the container 40. When mixed by changing, the effect that the air is not easily involved is obtained.

  Further, the single plate-like stirring blade 42 is formed with a notch 47 whose height is lowered at an L-shaped inner corner portion. The cutout 47 produces an effect that the mixture is overflowed and gently mixed.

When the starch adhesive is mixed, the finish is improved by using a stirrer for the starch adhesive. FIG. 5 is an explanatory view showing the configuration of the starch- based adhesive stirrer attached to the mixing apparatus of FIG.

As shown in FIG. 5b, the glue adhesive stirrer 51 includes a pipe member 56 bent like a question mark when viewed from the front. As shown in FIG. a, the stirring blade 52 provided at one end portion of the pipe material 56 includes a vertical plate portion 53 and an inclined plate portion 54 that is inclined with respect to a horizontal plane, and the vertical plate portion 53 and the inclined plate portion 54. And has an appearance continuously formed by the folding surface 55. The inclined plate portion 54 generates a flow that is swung from the bottom portion to the water surface by a swinging motion, and has an effect that the starch- based adhesive can be mixed efficiently.

  Further, a notch 57 having a lowered height is formed at the upper edge of the standing plate portion 53 of the stirring blade 52. The cutout 57 produces an effect that the mixture is overflowed and mixed gently.

2. Performance of this mixing device (intermittent drive mode 1: prevention of putty tightening)
After mixing the putty using this mixing apparatus, the putty was sampled over time in the intermittent drive mode 1 and its physical properties were measured. The putty used was trade name: Leberon 120 (manufactured by Yayoi Chemical Industry Co., Ltd.), and the amount of mixed water was powder: water = 3.7 kg: 2.3 kg. As a comparison, the same putty was sampled by stirring for 5 minutes and then leaving it as it was, according to the mixing method in the conventional mixing apparatus. An electric drill equipped with an agitating blade (“trade name: Pathetic (Yaoi Chemical Co., Ltd.)” as an agitating blade) was stirred for 5 minutes and then left as it was.

  The measurement items were viscosity immediately after sampling, viscosity after sampling for 30 seconds, confirmation of putty tightness, and confirmation of mixing of bubbles. Check the putty tightness with a pate vera stake in a five-level evaluation (0: no simulant, 1: small amount, 2: small to medium amount, 3: medium amount, 4: medium to large amount, 5: large amount), foam Confirmation of the occurrence of was carried out with the naked eye on a five-point scale (0: no generation of foam, 1: small amount, 2: small to medium amount, 3: medium amount, 4: medium to large amount, 5: large amount). The results are shown in Table 1 below.

  The viscosity measurement conditions were BH type viscometer and rotor NO. 7 was 4 rpm. Immediately after the viscosity was measured at the first rotation of the rotor, the viscosity after 30 seconds was measured after the rotor was rotated for 30 seconds. The TI value (Tl value = 2 rpm viscosity / 20 rpm viscosity) was entered in () in the table.

  Next, the same comparative test was performed using another putty. The putty used was trade name: Wide 120 (manufactured by Yayoi Chemical Industry Co., Ltd.), and the amount of mixed water was powder: water = 3.5 kg: 2 kg. As a comparison, the same putty was sampled by stirring for 5 minutes and then leaving it as it was, according to the mixing method in the conventional mixing apparatus. An electric drill equipped with an agitating blade (“trade name: Pathetic (Yaoi Chemical Co., Ltd.)” as an agitating blade) was stirred for 5 minutes and then left as it was.

  In addition, the measurement items were the viscosity immediately after sampling, the viscosity after 30 seconds after sampling, confirmation of putty tightening, and confirmation of mixing of bubbles, as in the above test. Check the putty tightness with a pate vera stake in a five-level evaluation (0: no simulant, 1: small amount, 2: small to medium amount, 3: medium amount, 4: medium to large amount, 5: large amount), foam Confirmation of the occurrence of was carried out with the naked eye on a five-point scale (0: no generation of foam, 1: small amount, 2: small to medium amount, 3: medium amount, 4: medium to large amount, 5: large amount). The results are shown in Table 2 below.

  The viscosity measurement conditions were BH type viscometer and rotor NO. 7 was 4 rpm. Immediately after the viscosity was measured at the first rotation of the rotor, the viscosity after 30 seconds was measured after the rotor was rotated for 30 seconds. The TI value (Tl value = 2 rpm viscosity / 20 rpm viscosity) was entered in () in the table.

  As shown in Table 1 and Table 2, in this mixing device, the increase in viscosity of the mixed putty is suppressed and tightening is prevented. You can see that the time is getting longer. Moreover, it turns out that there is no bubble embedding compared with the to-be-mixed material adjusted with electric drill stirring. Since tightening is prevented, it is not necessary to add water. Therefore, it can be seen that the base prepared with this putty has little fraying and a high-strength base can be obtained.

3. Properties of glue adhesive (initial drive mode; starch adhesive dilution performance)
Using this mixing apparatus, after adjusting the diluted solution of starch- based adhesive in the initial drive mode, the dilution performance of the obtained starch- based adhesive was verified. The starch- based adhesive used is a trade name; Rua Mild (manufactured by Yayoi Chemical Co., Ltd.), and an initial drive mode (20 rotations / min for 80 seconds, 30 rotations / min for 40 seconds, 35 rotations / min. The mixture was stirred for 40 minutes, and the remaining time was driven with an upper limit of 40 rotations / min) for a total of 5 minutes. The dilution rate of the starch- based adhesive was 5.5% dilution, 60% dilution, 7.5% dilution, and 10% dilution.

For comparison, an electric drill equipped with a “resin-made round knurled agitating blade (trade name; Might Mill) (manufactured by Yayoi Chemical Industry Co., Ltd.)” uses a similar starch- based adhesive with a similar dilution rate of starch- based adhesive. Diluent was adjusted. The results are shown in Table 3 below.

The comparative test items were (1) measurement of viscosity, (2) measurement of adhesive strength, and (3) measurement of see-through amount. Viscosity was measured using a BH viscometer for each temperature. Further, the viscosity was also measured when left at low temperature (5 ° C.) and left at cycle (40 ° C. → 5 ° C.). Adhesive strength was measured by applying a starch- based adhesive adjusted to Sina Veneer and attaching a cotton cloth, and then measuring normal adhesive strength and moisture-resistant adhesive strength (adhesive application amount: 135 g / m ² ). For the measurement of the amount of see-through, a gypsum board was prepared, and vinyl chloride wallpaper (Sangetsu: SP9915) and kenaf wallpaper (Tori; WEN3355) were pasted with the adjusted starch adhesive, and the amount of see-through of each wallpaper was measured.

  As shown in Table 3, it was found that the mixing apparatus of the present invention exhibits excellent dilution performance. This was thought to be because the hydration binding force of starch did not decrease because the swollen starch particles were less damaged and the molecular weight could be kept uniform because of gentle stirring at low speed. On the other hand, in the stirring using an electric drill, it was presumed that the starch particles were damaged due to high-speed shearing, resulting in a decrease in starch molecular weight and a decrease in hydration bonding force. This decrease in hydration bonding force seems to cause a decrease in dilution viscosity, a decrease in adhesion performance, and a decrease in storage stability.

4). Adhesive adhesive properties (change in starch adhesive over time)
Using this mixing apparatus, 3. In the same manner as above, after adjusting the diluted solution of the starch- based adhesive in the initial drive mode, the wiping performance of the obtained starch- based adhesive was verified. The starch- based adhesive used was 3. In the same manner, the product name: Rua Mild (manufactured by Yayoi Chemical Co., Ltd.), the initial drive mode (20 rotations / min for 80 seconds, 30 rotations / min for 40 seconds, 35 rotations / min for 40 seconds, The mixture was stirred and mixed for a total of 5 minutes at an upper limit of 40 rotations / min. The dilution rate of the starch adhesive was set to 5.5% dilution.

As a comparison, In the same way as above, even with an electric drill equipped with a “resin-made round-gear type stirring blade (trade name: mit mill) (manufactured by Yayoi Chemical Industry Co., Ltd.)”, a starch- based adhesive with the same dilution ratio using the same starch- based adhesive The diluted solution was adjusted.

Specifically, 4 kg of starch- based adhesive was taken out of the container, and 5.5% diluted water (2.2 L) was further added thereto, and mixed for a total of 5 minutes in the initial drive mode of the mixing apparatus of the present invention. Moreover, it melt | dissolved for 5 minutes with the stirring machine which equipped the resin-made round-gear type stirring blade with the electric drill, measured the viscosity, and calculated | required TI value further. The results are shown in Table 4.

  As shown in Table 4, immediately after dissolution, a decrease in viscosity due to high-speed shearing of the electric drill was observed. However, the viscosity increased due to aggregation again over time. As a result, after 3 days of dissolution, it was not different from the paste prepared with the mixing device of the present invention.

5. Properties of adhesive for glue (wiping performance test of starch adhesive)
4). The glue solution prepared in ( ^{1) was} applied to the back of mass-produced vinyl chloride wallpaper and 135 g / m ^{2 was} applied and allowed to stand for 15 minutes, 30 minutes , and 60 minutes, and then pasted onto a vinyl chloride plate, and the amount transferred was measured. After that, a cloth cloth which had been wrung out was prepared and wound around a 5 kg weight. A 5 kg weight with a wipe was shifted at a constant speed onto a PVC plate, and then the weight was measured and the amount of wiping was measured. The results are shown in Tables 5 and 6 below.

  As shown in Table 5 and Table 6, the glue liquid adjusted with the mixing device of the present invention was smaller in amount of transfer than the glue liquid adjusted with an electric drill, and the results of good wiping were obtained. This was thought to be because re-aggregation was likely to occur because the starch drill grains were damaged greatly and the water retention performance was impaired because the electric drill was adjusted at high speed.

It is explanatory drawing which shows the structure from the plane of one Example of the mixing apparatus of this invention. It is explanatory drawing which shows the structure from the front of FIG. It is explanatory drawing which shows the structure of the drive system of FIG. It is explanatory drawing which shows the structure of the stirring tool for putty with which the mixing apparatus of FIG. 1 is mounted | worn, a figure is a top view, and b figure is a front view. It is explanatory drawing which shows the structure of the stirring tool for starch- type adhesives with which the mixing apparatus of FIG. 1 is mounted | worn, a figure is a top view, and b figure is a front view.

Explanation of symbols

10 ... Mixing device,
11 ... Motor,
12 ... the body,
13 ... Rotary table,
14 ... Rise frame,
15 ... Oscillating shaft,
16 ... drive shaft,
17 ... Attachment tool,
18 ... retainer,
19 ... Ball bearing,
20 ... rotating shaft,
21 ... Guide rail,
23 ... Follower,
24 ... rotating table gear,
25 ... Crank gear,
26 ... rotating shaft,
27 ... Gearhead,
28 ... bearings,
29 ... Ball bearing,
30 ... Connecting rod,
31 ... Lever member,
40 ... container,
41. Stirrer,
42 ... stirring blade,
46 ... pipe material,
47 ... Notch,
50 ... container,
51. Stirrer,
52. Stirring blade,
53. Standing plate part,
54 ... inclined plate part,
55. Folded surface,
56 ... pipe material,
57 ... Notch,

Claims (7)

A main body provided with one or more drive sources, a rotary table rotated in the horizontal plane by the drive source on the main body, and an outer bottom portion of a container containing a material to be mixed are detachably held on the rotary table. Holding means, a swinging shaft that swings within a certain angle range on the main body side by the drive source, and a swinging shaft at the other end so that one end is located in the container held on the rotary table A substantially U-shaped stirring tool detachably attached to the mixing device, wherein the material to be mixed is stirred and mixed by relative movement of the rotation of the container by the rotary table and the swinging of the stirring tool.
Table rotation speed changing means for changing the rotation speed of the rotary table, and swing speed changing means for changing the swing speed of the swing shaft,
The table rotation speed changing means includes control means for repeatedly controlling driving / stopping of the rotation speed of the rotation table according to a predetermined time,
The swing speed changing means includes control means for repeatedly controlling driving / stopping of the swing speed of the swing shaft according to a predetermined time.
The drive source is only provided in the main body,
The table rotation speed changing means and the swing speed changing means are drive source rotation speed changing means for changing the rotation speed of the one drive source,
The drive source rotational speed changing means includes intermittent drive control means that repeats driving / stopping according to a predetermined time for the rotational speed of the drive source,
Mixing characterized in that the intermittent drive control means includes control for performing inching drive every 3 to 10 seconds to incline the rotary table interlocked with the swing motion of the swing shaft by 2 to 10 degrees. apparatus. The table rotational speed changing means includes control means for controlling the rotational speed of the rotary table to a speed lower than an upper limit rotational speed,
2. The mixing apparatus according to claim 1, wherein the swing speed changing means includes control means for controlling the swing speed of the swing shaft to a speed lower than an upper limit swing speed. The intermittent drive control means includes a control for rotating the rotary table linked with the swing motion of the swing shaft 10 to 20 times at a speed lower than the upper limit rotational speed every 2 to 8 minutes. The mixing apparatus according to claim 1 or 2 , characterized in that The drive source rotation speed changing means, according to claim 1, characterized in that the rotational speed of the driving source to the predetermined time from the start of driving is intended to include reduction drive control means for controlling the speed below the upper limit rotation speed The mixing apparatus in any one of -3 .   The mixing apparatus according to claim 1, wherein as the stirring tool, a putty stirring tool and a starch adhesive stirring tool are arranged so as to be interchangeable depending on the material to be mixed. At one end of the stirrer, provided with a blade for generating a flow in the material to be mixed by rocking,
6. The mixing according to claim 1 , wherein the blade moves on a trajectory in which a tip bottom portion far from the center of oscillation passes through a substantially center of the rotary table by oscillation of the stirring tool. apparatus. The mixing device according to claim 6 , wherein a notch that overflows a material to be mixed at the time of rocking is formed in a part of the upper edge of the blade.

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