JP2006043490A - Coating feeding device and coater using the coating feeding device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To reduce a cost of a coating feeding device by devising a coating feeding constitution of a coater. <P>SOLUTION: Eight coating cylinders 10 are prepared and whereas two driving devices 20 are prepared and separated from the coating cylinders 10 to becomes movable. Thereby, one of the driving devices drives any one of the four coating cylinders 10 belonging to the above system of A and B and the other drives any one of the four coating cylinders 10 belonging to the system of C and D. Thus, feeding of the coating is made possible by the less numbers of driving devices 20 than the coating cylinders 10 by separating the driving devices 20 from the coating cylinders 10 and making them movable. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to paint supply in a coating machine.

  When painting a work such as an automobile body, paint is sprayed from a paint discharge port of a coating machine to a work that can be transferred by a conveyor in a painting booth configured in a tunnel shape. The supply of the paint at this time is performed by driving the paint cylinder by a driving device (see, for example, Patent Document 1).

By the way, in order to change the color of the paint, the coating machine generally includes a plurality of the above-described paint cylinders. Conventionally, the driving device is also configured integrally with the paint cylinder, and the same number is prepared corresponding to each paint cylinder.
JP-A-11-290728

  However, in the above-described configuration, the same number of drive devices as the paint cylinders are required. Therefore, when the paint cylinders increase, the cost of the paint supply device increases.

  The present invention has been made to solve the above-described problems, and an object of the present invention is to devise a paint supply configuration of a coating machine and reduce the cost of the paint supply apparatus.

  In the following, each means suitable for solving the above-mentioned purpose will be described in terms of items. In addition, the effect etc. peculiar to the means to respond | correspond as needed are added.

Means 1. In a paint supply apparatus comprising a paint cylinder having a piston mechanism and capable of supplying paint, and a drive device for driving the piston mechanism to supply the paint,
The paint cylinders and the drive devices are configured separately, and the drive devices can be moved so that the piston mechanisms of the paint cylinders can be driven. The number of the drive devices is the number of the paint cylinders. A paint supply device characterized by having less than the above.

  The paint supply apparatus described in means 1 includes a paint cylinder and a drive device. The paint cylinder is a cylinder having a piston mechanism and capable of supplying paint, and a driving device drives the piston mechanism to supply paint.

  Here, in particular, in the present invention, the paint cylinder and the drive device are separated. Then, the drive device can be moved, and the piston mechanism of a plurality of paint cylinders can be driven by moving the drive device, so that the number of drive devices is smaller than the number of paint cylinders.

  Therefore, even if the number of paint cylinders increases, the number of drive devices with respect to the paint cylinders decreases, and the cost of the paint supply device does not increase. At this time, the quantitativeness and the discharge response are very good.

Mean 2. In the paint supply apparatus according to means 1,
A paint supply device comprising one drive device.

  According to the means 2, since there is one drive device for the plurality of paint cylinders, the cost of the paint supply device can be greatly reduced.

Means 3. In the paint supply apparatus according to means 2,
The drive device is configured to be capable of simultaneously driving the piston mechanisms of two paint cylinders.

  As a driving device, a configuration in which the rod is projected by a motor is conceivable. However, as shown in the means 3, the piston mechanisms of the two paint cylinders may be driven by the projection of the rod. In this way, even if it is the structure provided with one drive device, two liquids can be discharged simultaneously.

Means 4. In the paint supply apparatus according to means 3,
The two paint cylinders are a paint cylinder for supplying a main agent and a paint cylinder for supplying a curing agent.

  According to the means 4, since the two paint cylinders driven by the drive device are a paint cylinder for supplying the main agent and a paint cylinder for supplying the hardener, the main agent and the hardener can be discharged simultaneously. . Moreover, the mixing ratio of the main agent and the curing agent can be changed to an arbitrary ratio.

Means 5. In the paint supply apparatus according to means 1,
A paint supply device comprising two of the drive devices.

  According to the means 5, two drive devices are provided for the plurality of paint cylinders. In this way, the cost is somewhat higher than that of a single drive device, but it is advantageous in that the time required for color change is shortened.

Means 6. In the paint supply apparatus according to means 5,
Each of the two drive devices is configured to be capable of simultaneously driving the piston mechanisms of the two paint cylinders.

  According to the means 6, since each of the two drive devices is configured to be able to simultaneously drive the piston mechanisms of the two paint cylinders, two liquids can be discharged simultaneously. And in this case, since each drive device drives the piston mechanism of a paint cylinder separately, the mixing degree of two liquids can be adjusted easily.

Mean 7 In the paint supply apparatus according to means 6,
The two paint cylinders are a paint cylinder for supplying a main agent and a paint cylinder for supplying a curing agent.

  According to the means 7, since the two paint cylinders driven by the driving device are a paint cylinder for supplying the main agent and a paint cylinder for supplying the hardener, the main agent and the hardener can be discharged simultaneously. . In this case, since each driving device individually drives the piston mechanism of the paint cylinder, the degree of mixing of the main agent and the curing agent can be easily adjusted.

Means 8. In the paint supply apparatus according to means 1,
A paint supply apparatus comprising four of the drive devices and configured to be capable of simultaneously driving piston mechanisms of at least two paint cylinders.

  According to the means 8, four driving devices are provided for the plurality of paint cylinders. In this way, although the cost is somewhat higher than the configuration of one or two drive devices, it is advantageous in that the time required for color change is shortened. And since the drive device is comprised so that the piston mechanism of at least two paint cylinders can be driven simultaneously, it can discharge at least 2 liquids simultaneously. In this case, since each driving device individually drives the piston mechanism of the paint cylinder, the mixing degree of the discharged liquid can be easily adjusted.

Means 9. In the paint supply apparatus according to means 8,
The at least two paint cylinders include a paint cylinder for supplying a main agent and a paint cylinder for supplying a curing agent.

  According to the means 9, since the at least two paint cylinders driven by the driving device include the paint cylinder for supplying the main agent and the paint cylinder for supplying the hardener, the main agent and the hardener can be discharged simultaneously. it can. In this case, since each driving device individually drives the piston mechanism of the paint cylinder, the degree of mixing of the main agent and the curing agent can be easily adjusted.

  Note that the following configuration may be employed as a configuration for reducing the time required for color change or the like.

Means 10. In a paint supply apparatus comprising a paint cylinder having a piston mechanism and capable of supplying paint, and a drive device for driving the piston mechanism to supply the paint,
The paint cylinder and the drive device are configured separately, and the drive device can be moved to drive the piston mechanisms of the plurality of paint cylinders, so that at least two paint cylinders can be driven. As a configuration comprising the drive device,
A paint supply apparatus configured to put the drive means in a standby state as necessary in preparation for supply of paint from another paint cylinder during supply of paint from a paint cylinder.

  The paint supply apparatus described in the means 10 includes a paint cylinder and a drive device. The paint cylinder is a cylinder having a piston mechanism and capable of supplying paint, and a driving device drives the piston mechanism to supply paint.

  Here, in particular, in the present invention, the paint cylinder and the drive device are separated. Then, the drive device can be moved, and the piston mechanism of the plurality of paint cylinders can be driven by moving the drive device, so that at least two drive devices are provided for the plurality of paint cylinders.

  Therefore, even if the number of paint cylinders increases, the number of drive devices decreases, and the cost of the paint supply device can be reduced.

  In addition, in the present invention, during the supply of the paint from one paint cylinder, the drive means is set to the standby state as necessary in preparation for the supply of paint from another paint cylinder. Here, the standby state is a state in which the piston mechanism of the paint cylinder can be immediately driven to supply the paint. That is, since at least two drive devices are provided, for example, a state in which paint can be supplied immediately by one of the drive devices is created.

  As a result, the time required for switching control of a plurality of paint cylinders does not increase, and as a result, smooth paint cylinder switching can be realized.

Means 11. In the paint supply apparatus according to means 10,
It is equipped with a paint filling means for filling the paint cylinder with paint,
A paint supply apparatus configured to be able to fill a paint cylinder with the other paint cylinder using the paint filling means during the supply of the paint from the paint cylinder.

  According to the means 11, since it is possible to fill the paint into another paint cylinder using the paint filling means during the supply of the paint from a paint cylinder, the time required for switching control of a plurality of paint cylinders does not increase. As a result, smooth switching of the paint cylinder can be realized.

Means 12. In the paint supply apparatus according to means 10 or 11,
It has cleaning means for cleaning the paint cylinder,
A paint supply apparatus configured to be capable of cleaning the other paint cylinder using the cleaning means while supplying the paint from the paint cylinder.

  According to the means 12, it is possible to clean another paint cylinder using the cleaning means while supplying the paint from a paint cylinder. Therefore, even when it is necessary to change the color of the paint filled in the paint cylinder. The time required for switching control of the paint cylinder does not increase, and as a result, smooth switching of the paint cylinder can be realized.

Means 13. In the paint supply apparatus according to Means 12,
The paint supply apparatus, wherein the cleaning means supplies a cleaning agent to the paint cylinder.

  The cleaning means described above may be configured as means for supplying a cleaning agent to the paint cylinder as indicated by means 13. For example, it is embodied as a mechanism capable of delivering the cleaning agent to the paint cylinder by switching the valve.

Means 14. In the paint supply apparatus according to means 13,
The paint supply apparatus, wherein the cleaning agent is cleaning air and cleaning thinner.

  As an example of the cleaning agent, cleaning air and cleaning thinner as shown in the means 14 can be considered.

Means 15. In the paint supply apparatus according to means 13,
The paint supply apparatus, wherein the cleaning agent is a cleaning thinner.

  As an example of the cleaning agent, a cleaning thinner as shown in the means 15 can be considered.

Means 16. In the paint supply apparatus according to any one of means 13 to 15,
The paint supply apparatus according to claim 1, wherein the cleaning of the paint cylinder includes a supply process of the cleaning agent from the cleaning means and a discharge process of the cleaning agent by the driving means.

  In the state where the paint cylinder is filled with the cleaning agent, it is necessary to drive the piston mechanism by the driving means for discharging the cleaning agent. In this respect, according to the means 16, the cleaning of the paint cylinder includes a process of discharging the cleaning agent by the driving means, and the cleaning of the paint cylinder is performed during the supply of the paint from a paint cylinder. Therefore, the time required for paint cylinder switching control does not increase, and as a result, smooth paint cylinder switching can be realized.

Means 17. In the paint supply apparatus according to any one of means 1 to 16,
The paint supply device, wherein the drive device is movable by an air cylinder.

  Specifically, as shown in the means 17, it can be considered that the driving device can be moved by an air cylinder. For example, a drive device is installed on a slide table movable along the guide member, and the slide table is moved by an air cylinder. If it does in this way, a drive device can be moved comparatively easily and the composition of a paint supply device will become simple.

Means 18. In the paint supply apparatus according to any one of means 1 to 16,
The paint supply device, wherein the drive device is movable by a motor.

  Further, as shown in the means 18, it is conceivable that the driving device can be moved by a motor. For example, a drive device is installed on a slide table movable along the guide member, and this slide table is moved by a motor using a timing belt or the like. If it does in this way, a drive device can be moved comparatively easily and the composition of a paint supply device will become simple.

Means 19. In the paint supply apparatus according to any one of means 1 to 16,
The drive device is configured as a robot, and an arm of the robot is configured to drive the piston mechanism.

  As described above, when the air cylinder is used, if the moving direction of the driving device (the direction in which the paint cylinders are arranged) increases and a large number of air cylinders are required, the moving mechanism of the driving device becomes expensive. In this respect, according to the means 19, since the robot arm drives the piston mechanism, the moving mechanism of the driving device can be configured at low cost even if the moving direction of the driving device increases. The robot may be configured using an articulated robot, an orthogonal robot, or the like.

Means 20. In the paint supply apparatus according to any one of means 1 to 19,
The said drive device has a motor, the reduction gear which decelerates rotation of the said motor, and the ball screw which converts the rotational motion of the said reduction gear into linear motion, The coating material supply apparatus characterized by the above-mentioned.

  As shown in the means 20, the driving device may be configured to include a motor, a speed reducer, and a ball screw. A stable linear motion can be obtained from the rotational motion of the motor by using the speed reducer and the ball screw.

  Although the above has been described as the invention of the paint supply device, it can also be realized as an invention of a coating machine provided with a paint discharge port for discharging the paint delivered from the paint supply device. It is as follows.

  Means 21. A coating machine comprising: the paint supply device according to any one of means 1 to 20; and a paint discharge port that discharges the paint supplied by the paint supply device.

  Means 22. A painting robot comprising a coating machine according to means 21 arranged on an arm.

  Further, as shown in the means 22, the invention may be realized as an invention of a painting robot in which such a painting machine is disposed on the robot arm. Providing a coating machine on the arm itself is advantageous in that the path from the paint supply device to the paint discharge port is shortened.

[First Embodiment]
Hereinafter, the structure of the coating machine of this embodiment is demonstrated concretely, referring drawings.

  FIG. 1 is an explanatory view schematically showing a configuration of a coating machine in the present embodiment.

  The coating machine includes a paint cylinder 10, a driving device 20, a switching unit 30, a trigger unit 40, a cup unit 50, and an atomizing head 60.

  A total of eight paint cylinders 10 are prepared. The paint cylinder 10 has a paint chamber 11, a piston 12, and a rod 13. When the piston 12 moves to the left by the immersion of the rod 13, the paint in the paint chamber 11 is sent to the trigger unit 40 side. Is done.

  In the present embodiment, two predetermined paint cylinders 10 are each set, and have four paint delivery systems. In the figure, the systems are shown as A, B, C, and D in order from the top. The paint cylinders 10 belonging to the A and B systems are filled with the main agent, and the paint cylinders 10 belonging to the C and D systems are filled with the curing agent.

  The drive device 20 includes a speed reducer 21, a motor 22, and a rod 23. By driving the motor 22, the rod 23 can be stably retracted and retracted via the speed reducer 21, and the rod 13 of the paint cylinder 10 is immersed by driving the rod 23 to drive the piston mechanism of the paint cylinder 10. .

  A total of two drive devices 20 are prepared and can be moved separately from the paint cylinder 10. As a result, one of the four paint cylinders 10 belonging to the A and B systems described above is driven, and the other one of the four paint cylinders 10 belonging to the C and D systems is driven. Although the specific configuration of the coating machine will be described later, the two drive units 20 are configured to be interlocked. Two paint cylinders 10 belonging to the A system are indicated as “A-1 paint cylinder” and “A-2 paint cylinder”, and similarly, the two paint cylinders 10 of the B system are designated as “B-1 paint cylinder”, “B-2 paint cylinder”, “C-1 paint cylinder”, “C-2 paint cylinder”, D system “D-1 paint cylinder”, “D-2 paint cylinder” As shown below. That is, when one drive device 20 comes to the position of the A-1 paint cylinder 10, the other drive device 20 comes to the position of the C-1 paint cylinder 10. When one comes to the position of the A-2 paint cylinder 10, the other comes to the position of the C-2 paint cylinder. Similarly, when one is at the position of the B-1 paint cylinder 10, the other is at the position of the D-1 paint cylinder 10, and when one is at the position of the B-2 paint cylinder 10, the other is at the position of the D-2 paint cylinder 10. Come in position. As a result, the main agent and the curing agent can be discharged simultaneously from the two systems A and C or B and D.

  The switching unit 30 is provided in each of the systems A to D described above. The switching unit 30 includes a switching valve 31, a paint valve 32, a cleaning thinner valve 33, and a cleaning air valve 34. Then, by switching the switching valve 31, it is possible to replenish and clean the paint in one of the two corresponding paint cylinders 10 from the switching unit 30.

  The trigger unit 40 is also provided in each of the systems A to D described above. A path 70 from the trigger unit 40 to the atomizing head 60 is provided. The trigger unit 40 includes a soft air valve 41, a soft thinner valve 42, and a dump valve 43. The soft air valve 41 and the soft thinner valve 42 are valves for mainly cleaning the passage 70. The dump valve 43 is a valve for discarding paint or the like.

  The cup unit 50 is for cleaning the atomizing head 60 and includes a cup thinner valve 51 and a cup air valve 52. As a result, the atomizing head 60 is cleaned.

  The atomizing head 60 has a static mixer 61 and can mix and discharge paints sent from a plurality of systems. The atomizing head 60 corresponds to a “paint discharge port”.

  Next, a specific structure of the paint supply mechanism of the coating machine according to the present embodiment will be described.

  FIG. 2 is a front view showing the paint supply mechanism. FIG. 3 is a side view of the supply mechanism of FIG. 2 as viewed from the left side. FIG. 4 is a plan view of the supply mechanism of FIG. 2 as viewed from above.

  As shown in the drawing, the coating material supply mechanism includes a rectangular base 91, and four legs 92 are erected substantially vertically from the base 91. The interval between the leg portions 92 is wider in the left-right direction than in the front-rear direction. And the beam part 93 is provided in parallel so that the upper end part of the leg part 92 arrange | positioned in the left-right direction may be connected.

  The paint cylinders 10 are arranged and fixed substantially at the center of the leg portion 92 in the vertical direction. Specifically, as shown in FIG. 2, four paint cylinders 10 are arranged and fixed in the left-right direction, and as shown in FIG. 3, two paint cylinders 10 are arranged and fixed in the front-rear direction. The paint cylinders 10 are arranged and fixed.

  The two paint cylinders 10 on the left side shown in FIG. 2 supply the main agent and correspond to the A system paint cylinder 10. On the rear side of the A system paint cylinder 10, B system paint cylinders 10 for supplying the main agent are also arranged (see FIG. 3). Also, the two right-hand paint cylinders 10 supply the curing agent and correspond to the C system paint cylinders 10. On the rear side of the C system paint cylinder 10, a D system paint cylinder 10 for supplying a curing agent is also arranged. Each paint cylinder 10 has two inlets 14, 15. The inlet / outlet 14 is an outlet to the trigger unit 40 shown in FIG. 1, and the inlet / outlet 15 is an inlet from the switching unit 30. It has become.

  As described above, the beam portions 93 that are parallel in the left-right direction have already been provided. On the upper surfaces of these beam portions 93, rail-shaped guide portions 101 are provided in the same direction as the beam portions 93. A slide portion 121 is provided that can move in the left-right direction along the guide portion 101. The slide portion 121 is a frame-like member formed by combining long and narrow members in the front, rear, left, and right, and a portion disposed in the left-right direction grips the guide portion 101 and has a roller mechanism for movement. have.

  On the other hand, a rail-shaped guide portion 102 is provided on the upper surface of the portion arranged in the front-rear direction of the slide portion 121. A slide table 122 that is movable in the front-rear direction along the guide portion 102 is provided. The slide table 122 includes a grip portion 104 that grips the guide portion 102 and has a roller mechanism for movement.

  Two drive devices 20 are fixed to the slide table 122. As a result, the two drive devices 20 are arranged and interlocked at a predetermined interval.

  The movement of the driving device 20 is realized by the air cylinders 110 and 111. The rod of the air cylinder 110 is fixed to the slide table 122, and the slide table 122 is moved in the front-rear direction by the movement of the rod (see FIGS. 3 and 4). The rod of the air cylinder 111 is fixed to the protruding portion 112 below the air cylinder 110, and the slide portion 121 is moved in the left-right direction together with the air cylinder 110 by the protrusion and recession (see FIG. 4).

  The drive device 20 includes a motor 22 that protrudes above the slide table, a speed reducer 21 that is positioned below the slide table 122, a main body 24 that extends downward from the speed reducer 21, and a rod 23 that protrudes and retracts from the main body 24. (Refer to FIG. 3). The rod 23 is moved to a position facing the rod 13 of the paint cylinder 10 by the movement of the slide portion 121 and the slide table 122, and the rod 13 of the paint cylinder 10 can be pushed down.

  Next, the effect of the coating machine in this embodiment is demonstrated.

  In the present embodiment, two drive devices 20 are prepared for the eight paint cylinders 10 that are separated from the paint cylinder 10 and are movable. As a result, one of the four paint cylinders 10 belonging to the A and B systems described above is driven, and the other one of the four paint cylinders 10 belonging to the C and D systems is driven. In this way, the drive device 20 is separated from the paint cylinder 10 and can be moved, so that the paint can be supplied with a smaller number of drive devices 20 than the paint cylinder 10. As a result, the cost of the paint supply device does not increase. As a result, the cost of the paint supply device can be reduced.

  Moreover, in this embodiment, it was set as the structure which moves the slide part 121 and the slide table 122 using the air cylinders 110 and 111, and moves the drive device 20 fixed to the slide table 122. FIG. As a result, the drive device 20 can be moved relatively easily, and the configuration of the paint supply device is simplified.

  Furthermore, in this embodiment, it is set as the structure provided with the two drive devices 20, the paint cylinder 10 driven by one drive device 20 is filled with the main ingredient, and the paint cylinder 10 driven by the other drive device 20 is used. Is filled with a curing agent, so that two liquids can be discharged simultaneously. As a result, although the cost is somewhat higher than a single drive unit, each drive unit 20 drives the paint cylinder 10 separately, so that the mixing degree of the main agent and the curing agent can be easily adjusted. it can.

In the present embodiment, since the drive device 20 has the motor 22 and the speed reducer 21, a stable linear motion can be obtained from the rotational motion of the motor 20.
[Second Embodiment]
Since this embodiment also has the same configuration as that of the above-described embodiment, description regarding the configuration and structure of the coating material supply apparatus is omitted.

  In the above embodiment, the paint cylinder 10 belonging to the A and B systems is filled with the main agent, and the paint cylinder 10 belonging to the C and D systems is filled with the curing agent, so that the main agent and the curing agent can be discharged simultaneously. It was.

  On the other hand, in the present embodiment, in addition to reducing the cost of the paint supply device, the time required for switching control of the paint cylinder 10 is shortened, and the following characteristic operation is performed.

  As described above, when the motor 22 of the driving device 20 is driven, the rod 23 protrudes, so that the rod 13 of the paint cylinder 10 is immersed, and the paint of the paint cylinder 10 is atomized through the trigger unit 40. 60.

  In the present embodiment, for example, when one drive device 20 is located at the position of the A-1 paint cylinder 10 and the other drive device 20 is discharging the paint from the A-1 paint cylinder 10, the other drive device 20 is the C-1 paint cylinder. The other drive device 20 can be set in a standby state. The standby state is a state in which when the supply of the paint from the A-1 paint cylinder 10 is finished, the paint can be supplied from the C-1 paint cylinder 10 immediately.

  Further, during the discharge of the paint from the A-1 paint cylinder 10, the other paint cylinders 10 can be filled with the paint from the switching unit 30. The filling of the paint is to open the switching valve 31 corresponding to the paint cylinder 10 and supply the paint to the paint cylinder 10 from the paint valve 32 via the switch valve 31.

  Furthermore, during the discharge of the paint from the A-1 paint cylinder 10, it is possible to clean the C-1 paint cylinder 10 in which the other drive unit 20 is located prior to the filling of the paint. Cleaning of the paint cylinder 10 includes the following cleaning agent supply process and cleaning agent discharge process.

  First, in the cleaning agent supply process, the switching valve 31 corresponding to the paint cylinder 10 is opened, and the cleaning thinner or the cleaning air is supplied to the paint cylinder 10 from the cleaning thinner valve 33 or the cleaning air valve 34 via the switching valve 31. . In the subsequent discharging process, the other driving device 20 is driven to send the cleaning thinner or the cleaning air of the paint cylinder 10 to the trigger unit 40 side, and the dump valves provided corresponding to the paint cylinders 10 respectively. 43 is discharged.

  Next, the effect of the coating machine in this embodiment is demonstrated.

  In the present embodiment, only two drive devices 20 are prepared for the eight paint cylinders 10 that are separated from the paint cylinder 10 and are movable. As a result, one of the four paint cylinders 10 belonging to the A and B systems described above is driven, and the other one of the four paint cylinders 10 belonging to the C and D systems is driven. In this way, the drive device 20 is separated from the paint cylinder 10 and can be moved, so that the paint can be supplied with a smaller number of drive devices 20 than the paint cylinder 10. As a result, the cost of the paint supply device does not increase.

  In addition, during the discharge of the paint from the A-1 paint cylinder 10, the other drive device 20 comes to the position of the C-1 paint cylinder 10, but the other drive device 20 can be set in the standby state. . That is, when the supply of the paint from the A-1 paint cylinder 10 is completed, the supply of the paint from the C-1 paint cylinder 10 can be immediately performed.

  Thereby, the time required for switching control of the plurality of paint cylinders 10 does not increase, and as a result, smooth switching of the paint cylinders 10 can be realized.

  Further, in the present embodiment, during the discharge of the paint from the A-1 paint cylinder 10, the paint paint from the switching unit 30 can be filled into the other paint cylinders 10. Furthermore, during the discharge of the paint from the A-1 paint cylinder 10, it is possible to clean the C-1 paint cylinder 10 in which the other drive unit 20 is located prior to the filling of the paint. Thus, for example, even when it is necessary to replenish the paint, or when it is necessary to change the color of the paint filled in the paint cylinder, for example, the time required for switching control of the paint cylinder does not increase, and as a result, Smooth paint cylinder switching can be realized.

  Furthermore, in the present embodiment, the slide unit 121 and the slide table 122 are moved using the air cylinders 110 and 111, and the drive device 20 fixed to the slide table 122 is moved. As a result, the drive device 20 can be moved relatively easily, and the configuration of the paint supply device is simplified.

  In the present embodiment, since the drive device 20 includes the motor 22 and the speed reducer 21, a stable linear motion can be obtained from the motor 22.

  As mentioned above, this invention is not limited to the said embodiment at all, and it cannot be overemphasized that it can implement with a various form, unless it deviates from the meaning of this invention.

  (A) In the above embodiment, the drive device 20 is moved using the air cylinders 110 and 111. However, the drive device may be moved using a motor and a timing belt, for example. Even with such a configuration, it is possible to realize the moving configuration of the drive device relatively easily.

  (B) You may implement | achieve the drive device 20 and its moving mechanism in the said embodiment using a robot. That is, it is conceivable that an articulated robot, an orthogonal robot, or the like is used and the rod 13 of the paint cylinder 10 is pressed by the robot arm. In this way, it is economically advantageous as compared with a configuration using a number of air cylinders.

  (C) In the first embodiment, two drive devices 20 are provided. On the other hand, the configuration of the first embodiment may be configured to include one drive device. With such a configuration, the cost of the paint supply device can be significantly reduced.

  Here, a configuration in which two paint cylinders are driven by one drive device and two liquids (for example, a main agent and a curing agent) are discharged at the same time is conceivable. However, two paint cylinders are driven by separate drive devices. This is advantageous in that the mixing degree of the two liquids can be easily adjusted.

  In that sense, it is also possible to adopt a configuration including four drive devices. If the number of driving devices increases, the cost cannot be denied, but there is an advantage that, for example, the time required for color change is shortened.

  (D) In the second embodiment, two drive devices 20 are provided. On the other hand, also in the said 2nd Embodiment, it is possible to set it as the structure provided with four drive devices. If the number of drive devices increases, the cost cannot be denied, but the time required for the paint cylinder switching control can be further shortened.

  (E) In the second embodiment, the two drive devices 20 are interlocked. However, the two drive devices may be moved independently. For example, one drive device is assigned to one row of the paint cylinders arranged in two rows, and another drive device is assigned to the other row. In this way, during the discharge of the paint from the paint cylinder belonging to one row, the driving device can be put on standby for any paint cylinder belonging to the other row, which is necessary for the paint cylinder switching control. There is a high possibility that the time can be further reduced.

It is explanatory drawing which shows the structure of a coating material supply apparatus typically. It is a front view which shows the specific structure of a coating material supply apparatus. It is a side view which shows the specific structure of a coating material supply apparatus. It is a top view which shows the specific structure of a coating material supply apparatus.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 10 ... Paint cylinder, 11 ... Paint chamber, 12 ... Piston, 13 ... Rod, 14, 15 ... Entrance / exit, 20 ... Drive device, 21 ... Reduction gear, 22 ... Motor, 23 ... Rod, 24 ... Main part, 30 ... Switching unit, 31 ... Switching valve, 32 ... Paint valve, 33 ... Cleaning thinner valve, 34 ... Cleaning air valve, 40 ... Trigger unit, 41 ... Soft air valve, 42 ... Soft thinner valve, 43 ... Dump valve, 50 ... Cup unit, 51 DESCRIPTION OF SYMBOLS ... Cup thinner valve, 52 ... Cup air valve, 60 ... Atomizing head, 61 ... Static mixer, 70 ... Path | route, 91 ... Base part, 92 ... Leg part, 93 ... Beam part, 101, 102 ... Guide part, 103, 104 ... Gripping part, 110, 111 ... air cylinder, 112 ... projecting part, 121 ... slide part, 122 ... slide table.

Claims (21)

In a paint supply apparatus comprising a paint cylinder having a piston mechanism and capable of supplying paint, and a drive device for driving the piston mechanism to supply the paint,
The paint cylinders and the drive devices are configured separately, and the drive devices can be moved to drive the piston mechanisms of a plurality of the paint cylinders. A paint supply device characterized by having less than the above. The paint supply apparatus according to claim 1,
A paint supply device comprising one drive device. The paint supply apparatus according to claim 2,
The drive device is configured to be capable of simultaneously driving the piston mechanisms of two paint cylinders. The paint supply apparatus according to claim 3,
The two paint cylinders are a paint cylinder for supplying a main agent and a paint cylinder for supplying a curing agent. The paint supply apparatus according to claim 1,
A paint supply device comprising two of the drive devices. The paint supply apparatus according to claim 5,
Each of the two drive devices is configured to be capable of simultaneously driving the piston mechanisms of the two paint cylinders. The paint supply apparatus according to claim 6, wherein
The two paint cylinders are a paint cylinder for supplying a main agent and a paint cylinder for supplying a curing agent. The paint supply apparatus according to claim 1,
A paint supply apparatus comprising four of the drive devices and configured to be capable of simultaneously driving piston mechanisms of at least two paint cylinders. The paint supply apparatus according to claim 8,
The at least two paint cylinders include a paint cylinder for supplying a main agent and a paint cylinder for supplying a curing agent. In a paint supply apparatus comprising a paint cylinder having a piston mechanism and capable of supplying paint, and a drive device for driving the piston mechanism to supply the paint,
The paint cylinder and the drive device are configured separately, and the drive device can be moved to drive the piston mechanisms of the plurality of paint cylinders, so that at least two paint cylinders can be driven. As a configuration comprising the drive device,
A paint supply apparatus configured to put the drive means in a standby state as necessary in preparation for supply of paint from another paint cylinder during supply of paint from a paint cylinder. The paint supply apparatus according to claim 10, wherein
It is equipped with a paint filling means for filling the paint cylinder with paint,
A paint supply apparatus configured to be capable of filling the other paint cylinder with the paint filling means while the paint is supplied from the paint cylinder. The paint supply apparatus according to claim 10 or 11,
It has cleaning means for cleaning the paint cylinder,
A paint supply apparatus configured to be capable of cleaning the other paint cylinder using the cleaning means while supplying the paint from the paint cylinder. The paint supply apparatus according to claim 12, wherein
The paint supply apparatus, wherein the cleaning means supplies a cleaning agent to the paint cylinder. The paint supply device according to claim 13,
The paint supply apparatus, wherein the cleaning agent is cleaning air and cleaning thinner. The paint supply device according to claim 13,
The paint supply apparatus, wherein the cleaning agent is a cleaning thinner. The paint supply apparatus according to any one of claims 13 to 15,
The paint supply apparatus according to claim 1, wherein the cleaning of the paint cylinder includes a supply process of the cleaning agent from the cleaning means and a discharge process of the cleaning agent by the driving means. The paint supply apparatus according to any one of claims 1 to 16,
The paint supply device, wherein the drive device is movable by an air cylinder. The paint supply apparatus according to any one of claims 1 to 16,
The paint supply device, wherein the drive device is movable by a motor. The paint supply apparatus according to any one of claims 1 to 16,
The paint supply device, wherein the drive device is configured as a robot, and an arm of the robot is configured to drive the piston mechanism. The paint supply apparatus according to any one of claims 1 to 19,
The said drive device has a motor, the reduction gear which decelerates rotation of the said motor, and the ball screw which converts the rotational motion of the said reduction gear into linear motion, The coating material supply apparatus characterized by the above-mentioned.   A coating machine comprising the paint supply device according to any one of claims 1 to 20 and a paint discharge port for discharging the paint supplied by the paint supply device.

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