JP2021045712A - Painting system - Google Patents

Abstract

To provide a painting system that can be compacted as a whole in painting a work-piece using a UV painting material.SOLUTION: The painting system is provided with: a center area 2 where work-piece carrying means 7 is installed turnably; a painting area 3 where a painting material is applied to the work-piece; a setting area 4 where volatile-components contained in the painting material are evaporated; a UV irradiation area 5 where the work-piece is irradiated with ultraviolet ray to cure the painting material and a carry-out/in area 6 where the work-piece is carried out and in; transfer means 29 that transfers the work-piece carried by the work-piece carrying means to the setting area, the UV irradiation area and the carry-out/in area; and an opening/closing door 28 for bringing the areas into sealed states. By rotating the work-piece carrying means, the work-piece is carried sequentially to the setting area, the UV irradiation area and the carry-out/in area and then is processed in the respective areas.SELECTED DRAWING: Figure 1

Description

The present invention relates to a coating system, and more particularly to a coating system capable of reducing the cost and shortening the coating time by making the coating area compact when coating a work using UV paint.

Conventionally, when painting a work, it has been common to use a thermosetting paint that can be cured by applying heat and baked on the work, but in painting using this thermosetting paint, painting is performed. It has been pointed out that the process of applying hot air to the finished work to perform baking takes a long time, which requires a large space in the painting line, which causes the entire painting system to become large.

That is, in the case of painting with a thermosetting paint, after the spraying of the paint on the work is completed, the work is dried for about 4 to 5 minutes to evaporate the volatile components, and then 80 degrees in the heating chamber. It is necessary to apply hot air before and after, thereby curing the paint and baking it on the work.

For this reason, conventionally, the work that has been painted is conveyed by a conveyor, and the steps of drying and heating are performed in the middle of the transfer. Therefore, as a result, the conveyor line had to be lengthened, and the entire coating system became large, which required a large space.

In this regard, conventionally, there has been a paint (hereinafter referred to as "UV paint") that is cured by irradiating with ultraviolet rays to form a coating film, and in the painting of a work using this UV paint, Since the time required to cure the coating film is shorter than that of the heat-curable paint, the time required for painting is shorter than that of the coating system using the heat-curable paint, and the coating line can be reduced.

Japanese Unexamined Patent Publication No. 2015-024395 Japanese Unexamined Patent Publication No. 2012-045513 Japanese Unexamined Patent Publication No. 2012-040450

However, even in the painting of a work using this UV paint, since the work has been conveyed by a conveyor in the past, a certain amount of space is required, so that the painting area has to be enlarged. It was.

Therefore, the present invention provides a coating system capable of completing the coating of a workpiece in a short time without taking up space by making the entire coating system compact in the coating of a workpiece using UV coating. It is an issue.

The coating system of the present invention
A painting system that paints workpieces using UV paint.
Central area and
A coating area for applying paint to the work, a setting area for evaporating volatile components contained in the paint applied to the work, and a work, which are installed around the central area in communication with the central area. A UV irradiation area for curing the paint applied to the work by irradiating ultraviolet rays, and an carry-in / out area for carrying out the work that has been painted and carrying in the work before painting.
A painting device for spraying paint toward the work in the painting area,
The work is rotatably installed in the central area, and by rotating, the work before painting carried into the loading / unloading area is conveyed into the painting area, and the work coated with paint in the painting area is placed in the setting area. Transport to the front side, transport the work whose volatile components have been evaporated in the setting area to the front side of the UV irradiation area, and transport the work irradiated with ultraviolet rays in the UV irradiation area to the front side of the carry-in / out area. Work transfer means and
Transfer of the work transported to the front side of the setting area into the setting area, transfer of the work transported to the front side of the UV irradiation area into the UV irradiation area, and transfer of the work transported to the front side of the carry-in / out area. Are transferred into the loading / unloading area, or the workpieces in the setting area, UV irradiation area, and loading / unloading area are placed in front of the setting area, in front of the UV irradiation area, and in the loading / unloading area, respectively. Work transfer means to return to the front and
It is provided with an opening / closing door for sealing the setting area, the UV irradiation area, and the loading / unloading area, respectively.
The work transporting means
A rotating part rotatably installed in the central area, a plurality of main arms connected at equal angles on the outer peripheral side of the rotating part, and rotatably provided on the tip side of each main arm. A work connecting portion and a driving portion for rotating the work connecting portion are provided.
The work coated with the paint was moved to the setting area, the UV irradiation area, and the loading / unloading area in order in the painting area, and the volatile components contained in the paint applied to the work were evaporated and the work was irradiated with ultraviolet rays. Later, it is characterized by being carried out from the carry-in / out area.

In the painting system of the present invention, in a painting system for painting a work using UV paint, the paint is applied to the work around a central area in which a work transport means for transporting the work is rotatably installed. Painting is completed, including a painting area, a setting area for evaporating volatile components contained in the paint applied to the work, and a UV irradiation area for irradiating the work with ultraviolet rays to cure the paint applied to the work. A carry-out area for carrying in the work before painting is arranged as well as carrying out the work, and the work carried in the carry-in / out area is sequentially transferred to the painting area, the setting area, and the UV irradiation area by the work transport means. The painting will be completed.

Therefore, unlike the conventional coating system in which the setting and ultraviolet irradiation processes are performed while transporting the workpiece using a conveyor, the entire coating system can be made compact, does not require a large space, and the workpiece can be constructed in a short time. It is possible to complete the painting.

It is a figure which shows the appearance of the Example of the coating system of this invention. It is a figure for demonstrating the inside of the Example of the coating system of this invention. It is a figure for demonstrating the inside of the Example of the coating system of this invention. It is a figure for demonstrating the coating apparatus and work transfer means in an Example of the coating system of this invention. It is a figure for demonstrating the coating apparatus and work transfer means in an Example of the coating system of this invention. It is a figure for demonstrating the coating apparatus and work transfer means in an Example of the coating system of this invention. It is a figure for demonstrating the coating apparatus and work transfer means in an Example of the coating system of this invention. It is a figure for demonstrating the work mounting jig in the Example of the coating system of this invention. It is a figure for demonstrating the work transfer means in the Example of the coating system of this invention. It is a figure for demonstrating the work transfer means in the Example of the coating system of this invention.

The coating system of the present invention is a coating system for coating a work using UV paint, and has a central area in which a work transporting means for transporting the work is rotatably installed. A painting area, a setting area, a UV irradiation area, and a loading / unloading area are arranged in the surrounding area.

The painting area is an area for applying paint to the work, the setting area is an area for evaporating volatile components contained in the paint applied to the work, and the UV irradiation area is an area for applying ultraviolet rays to the work. The area for curing the paint applied to the work by irradiating it, and the carry-in / out area is an area for carrying out the work that has been painted and carrying in the work before painting, and is in the central area or the painting area. Is equipped with a coating device for injecting paint toward the work and applying the paint to the work.

In addition, the work transporting means rotatably installed in the central area transports the unpainted work carried into the carry-in / out area into the painting area by rotating, and the paint is applied in the painting area. The work is transported to the front side of the setting area, the work whose volatile components are evaporated in the setting area is transported to the front side of the UV irradiation area, and the work whose paint is cured by being irradiated with ultraviolet rays in the UV irradiation area. Is to be transported to the front side of the carry-in / out area.

Further, the coating system of the present invention has a work transfer means for the setting area, a work transfer means for the UV irradiation area, and a work transfer means for the carry-in / out area. Then, the work transfer means for the setting area is used to transfer the work transferred to the front side of the setting area by the work transfer means into the setting area or to return the work transferred into the setting area to the work transfer means. Used. Further, as the work transfer means for the UV irradiation area, the work transferred to the front side of the UV irradiation area by the work transfer means is transferred into the UV irradiation area, or the work transferred into the UV irradiation area is transferred to the work transfer means. Used to return to. Further, the work transfer means for the carry-in / out area transfers the work carried to the front side of the carry-in / out area by the work transport means into the carry-in / out area, or the work before painting carried into the carry-in / out area. It is used to transport in front of the loading / unloading area.

Further, in the coating system of the present invention, an opening / closing door for the setting area for sealing the setting area, an opening / closing door for the UV irradiation area for sealing the UV irradiation area, and a carry-out for sealing the loading / unloading area. It is equipped with an opening / closing door for the entrance area.

Further, the work transporting means includes a rotating portion rotatably installed in the central area, a plurality of main arms connected at equal angles on the outer peripheral side of the rotating portion, and the tip side of each main arm. It is provided with a work connecting portion rotatably provided and a driving portion for rotating the work connecting portion.

Then, the work coated with the paint in the painting area is sequentially moved to the setting area, the UV irradiation area, and the loading / unloading area, and the volatile components contained in the paint applied to the work are evaporated and the work is irradiated with ultraviolet rays. After that, it is decided to carry out from the carry-in / out area.

Here, it is preferable to use a motor as a drive unit for rotating the work connecting portion in the work conveying means, and connect the motor and the work connecting portion with a belt to make the work connecting portion rotatable. At this time, the motor may be composed of a coupling and a motor base that rotates the coupling in a non-contact state by a magnetic force.

Further, it is preferable that a pair of second swivel arms are connected to each tip portion of the main arm, and a work connecting portion is provided on each tip side of the pair of second swivel arms.

Furthermore, the opening / closing door for the setting area and the opening / closing door for the loading / unloading area were supplied to the central area when the communication between the setting area and the central area and the communication between the loading / unloading area and the central area were cut off. It is advisable to provide a rectifying plate that rectifies air.

When the embodiment of the coating system of the present invention is described with reference to the drawings, FIGS. 1 to 3 are diagrams for explaining the coating system of the present embodiment, and FIG. 1 shows the appearance. Further, FIGS. 2 and 3 are diagrams for explaining the internal configuration and are image diagrams. In the figure, reference numeral 1 denotes a coating system of this embodiment, and the coating system 1 of this embodiment is a system for coating a work using UV paint.

Here, to explain the configuration of the coating system 1 of this embodiment, the coating system 1 of this embodiment has a central area, and each step for coating a work is performed around the central area. The area is arranged. Then, in the central area, a work transfer means is rotatably installed, and the work is conveyed to each area by the work transfer means, and a predetermined process is performed in each area to paint the work. It is configured to be completed.

That is, in FIGS. 2 and 3, 2 is the central area, and the painting area 3, the setting area 4, the UV irradiation area 5, and the loading / unloading area 6 are arranged clockwise around the central area 2. , The painting area 3, the setting area 4, the UV irradiation area 5, and the loading / unloading area 6 communicate with the central area 2, respectively.

The coating area 3 is an area for spraying the paint toward the work to apply the paint to the work, and the setting area 4 evaporates volatile components such as thinner contained in the paint applied to the work. The UV irradiation area 5 is an area for irradiating the work with ultraviolet rays to cure the paint applied to the work, and the carry-in / out area 6 is an area for taking out the painted work from the system. , This is an area for newly putting the work before painting into the system.

First, the central area 2 will be described. In FIGS. 3 and 4, a work transporting means 7 is rotatably arranged in the central area 2, and a coating device is applied to an upper portion of the work transporting means 7. 8 is installed. Then, the work transporting means 7 rotates to sequentially transport the work carried into the carry-in / carry-out area 6 to the painting area 3, the setting area 4, the UV irradiation area 5, and the carry-in / carry-out area 6. Used.

Here, when the work transporting means 7 is described, FIGS. 4 to 7 are views for explaining the work transporting means 7, and the work transporting means 7 and the coating apparatus 8 installed above the work transporting means 7. 4 is a side view, FIG. 5 is a bottom view, and FIGS. 6 and 7 are perspective views shown from the lower part.

The work transporting means 7 has a rotating portion 10 rotatably installed on the base 9 installed in the central area 2, and the rotating portion 10 is directed toward the outer peripheral side. Four first swivel arms 11 as main arms are continuously provided at equal angles. That is, in the present embodiment, the rotating portion 10 has a quadrangular shape, and the first swivel arm 11 is continuously provided at four points at the four corners, whereby the adjacent first swivel arm 11 is formed. The angle is about 90 degrees, and one rotation angle is 90 degrees. The rotating portion 10 does not have to be rectangular, and may be round. Further, the rotating portion 10 is rotated via a motor (not shown).

Next, at the tip of each of the first swivel arms 11, a second swivel arm 12 is continuously provided in the left-right direction orthogonal to the longitudinal direction of the first swivel arm 11. The second swivel arm 12 has a slightly curved bow shape, with both ends facing outward, and a central portion connected to the first swivel arm 11.

Further, each of the tip portions of the second swivel arm is provided with a work connecting portion 13. The work connecting portion 13 is rotatable with respect to the second swivel arm 12 by the driving portion, and an insertion hole is formed in the axial direction so that the work mounting jig to which the work is attached can be connected.

However, instead of using the second swivel arm 12, the work connecting portion 13 may be provided at the tip of the first swivel arm 11.

In the figure, 21 is a cover. That is, in this embodiment, the work transporting means 7 covers the upper portion and the side portion with the cover 21, and the work connecting portion 13 penetrates the cover 21 and projects upward.

Next, the work mounting jig connected to the work connecting portion 13 will be described with reference to FIG. 8. FIG. 8 is a diagram showing an example of the work mounting jig, and FIG. It is a tool, and W is a work attached to the work attachment jig 14. Then, the work mounting jig 14 shown in FIG. 8 is radially connected to the main shaft 15 which is connected to the work connecting portion 13 by being inserted into the insertion hole of the work connecting portion 13 and the upper portion of the main shaft 15. It has a plurality of arms 16, and a plate-shaped support means 17 is attached to the tip of the arm 16. Then, the work W is attached to the support means 17, and the work W is a door mirror in FIG. However, the form of the work mounting jig 14 is not particularly limited. Further, in FIGS. 2 and 3, the work mounting jig 14 is shown in a circular table shape for easy understanding.

Next, the drive unit for rotating the work connecting portion 13 will be described. In this embodiment, the drive unit is a magnet motor, and the magnet motor does not contact the coupling and the coupling by magnetic force. It is equipped with a motor base that rotates in the state of. That is, in this embodiment, magnetic or magnetic couplings 19 are rotatably provided at the four corners of the rotating portion 10 to which each of the first swivel arms 11 is continuously provided. A rotating body (not shown) is rotatably provided near the respective tip portions inside the first swivel arm 11 or the connecting portion with the first swivel arm 11 inside the second swivel arm 12. The coupling 19 and the rotating body are connected by a belt (not shown). Further, the rotating body and the work connecting portion 13 are connected by a belt (not shown), whereby when the coupling 19 rotates, only the work connecting portion 13 can be rotated.

On the other hand, below the rotating portion 10, the base 9 is provided with a motor base 20 for rotating the coupling 19, and the motor base 20 is provided on the motor body and the tip of the motor body. It is equipped with a disk made of magnets.

Here, since the coupling 19 is provided at the four corners of the rotating portion 10 to which each of the first swivel arms 11 is continuously provided, when the work transporting means 7 transports the work into the coating area 3. , Each position is fixed.

Therefore, in the present embodiment, when the position of the coupling 19 is determined by the work being conveyed into the coating area 3 in the rotating portion 10, the first swivel arm 11 that has conveyed the work into the coating area 3 The base 9 is provided with the motor base 20 so as to be located below the coupling 19 provided at the four corners where the motor base 20 is continuously provided, and the coupling 19 has moved upward in the motor base 20. The arrangement is such that a gap is sometimes formed between the coupling 19 and the coupling 19.

Therefore, when the work transporting means 7 transports the work into the coating area 3, the rotating portion 10 is prepared for the four corners where the first swivel arm 11 that conveys the work into the coating area 3 is continuously provided. The coupling 19 moves above the motor base 20. Then, in that state, when the disk of the motor base 20 is rotated by driving the motor body, the coupling 19 located above rotates in a non-contact state with the disk due to the magnetic force of the disk, thereby, as described above. In addition, it is possible to rotate only the work connecting portion 13.

On the other hand, when the coating of the paint in the coating area 3 is completed and the work transporting means 7 rotates, the coupling 19 located above the motor base 20 is not in contact with the motor base 20, so that the coupling 19 is not in contact with the motor base 20. It is separated in the horizontal direction and transported to the front side of the setting area 4. At the same time, the unpainted work carried in the carry-in / out area 6 is carried into the painting area 3, and the four corner portions of the rotating portion 10 where the first swivel arm 11 carrying in the new work is continuously provided. The coupling 19 prepared for the above moves above the motor base. Then, as described above, the disk rotates by driving the motor body, and the coupling 19 located above the motor base rotates in a non-contact state with the disk due to the magnetic force of the disk, and in the painting area 3 Only the work connecting portion 13 can be rotated. FIG. 7 shows a state in which the work is conveyed into the coating area 3 and the coupling 19 is above the motor base 20. Further, FIG. 6 shows a state in which the work transporting means 7 rotates in the state of FIG. 7, and the coupling 19 located above the motor base 20 is horizontally separated from the motor base 20. Is a state before the work transporting means 7 completes the rotation.

The drive unit does not necessarily have to use a magnet motor, and a normal motor may be used. At that time, a motor may be provided at each of the locations of the coupling 19, or a normal motor may be provided at the location of the motor base 20 so as to be connectable to the coupling 19 so as to be able to move up and down. .. Further, the coupling 19 does not necessarily have to be provided at the four corners of the rotating portion 10, and may be provided at the first swivel arm 11.

Next, in the present embodiment, in the work transporting means 7, the work connecting portions 13 provided at the tips of the four first swivel arms 11 are in the painting area 3, the front side of the setting area 4, and the UV irradiation area 5, respectively. It can be placed on the front side and on the front side of the carry-in / out area 6. As a result, in the carry-in / carry-out area 6, the work newly connected to the work connecting portion 13 by the work mounting jig 14 rotates the work transporting means 7 to the inside of the painting area 3 and the setting area 4. It is supposed to be transported to the front side, the front side of the UV irradiation area 5, and the front side of the carry-in / out area 6. The work transfer means 7 is rotated by a motor provided in the base 9.

Next, the coating device 8 will be described. In this embodiment, the coating device 8 is a stationary coating robot, and is a main body pillar erected on a base 9 through a rotating portion 10 of a work transfer means 7. 22 is provided, the first arm 23 is rotatably connected to the main body pillar 22 in the vertical direction, and the second arm 24 is rotatably connected to the first arm 23 in the vertical direction. A long ball screw spline 25 is connected to the tip of the second arm 24, and in this embodiment, the ball screw spline 25 is movable in the width direction of the second arm 24, that is, in the left-right direction, and is circular. It is rotatable along the circumferential direction. Then, spray guns 26 are attached to both ends of the ball screw spline 25. In the present invention, the painting device 8 does not necessarily have to be a stationary painting robot provided in the central area 2, but may be a ceiling-mounted painting robot suspended above the painting area 3. In this case, the painting device 8 may be a ceiling-mounted painting robot. A spray gun will be attached to the robot arm of the painting robot.

Next, the coating area 3 will be described. In this embodiment, the coating area 3 is an area for spraying paint toward the work and applying the paint to the work. That is, as described above, the work connecting portion 13 provided at the tip of the first swivel arm 11 of the work conveying means 7 is arranged in the painting area 3. Then, the paint is sprayed from the spray gun 26 of the painting robot 8 toward the work connected to the work connecting portion 13 arranged in the painting area 3, and the work is painted by this.

Although the front side of the painting area 3 is shown open in FIG. 1 for easy understanding, a filter for collecting paint mist is arranged on the front side of the painting area 3 and also. An air supply window 27 is formed on the ceiling on the rear side of the central area 2. Then, in the process of painting, air is supplied from the air supply window 27 into the central area 2, and the paint mist in the central area 2 and the painting area 3 is filtered while flowing this air toward the filter side. The supplied air is exhausted to the outside while being collected in.

Next, the setting area 4 will be described. In this embodiment, the setting area 4 is an area for evaporating volatile components such as thinner contained in the paint applied to the work in the painting area 3 as described above. is there. That is, in the present embodiment, the setting area 4 is provided with a heating means such as a heater, and the work is heated by the heating means to evaporate the volatile components contained in the paint. However, the method for evaporating the volatile component is not limited to heating with a heater, and other methods may be used. Therefore, for example, the volatile components may be evaporated by rotating the work in the setting area 4.

Next, the UV irradiation area 5 will be described. In this embodiment, the UV irradiation area 5 is an area for irradiating the work with ultraviolet rays to cure the paint applied to the work, as described above. That is, an ultraviolet irradiation device is provided in the UV irradiation area 5, and the UV applied to the work by irradiating the work in which the volatile components have been vaporized in the setting area 4 with ultraviolet rays from the ultraviolet irradiation device. The paint is cured, which completes the painting.

Then, as described above, the carry-in / carry-out area 6 is an area for taking out the work in which the paint is cured in the UV irradiation area 5 and completing the painting from the system and newly putting the work before painting into the system. .. Further, in the carry-in / carry-out area 6, dust is removed and static electricity is removed from the newly carried-in work. Therefore, in the painting system of the present embodiment, the work before painting carried into the carry-in / out area 6 is sequentially rotated by the work transport means 7, and the painting area 3, the setting area 4, and the UV irradiation area 5 are sequentially subjected to. It is possible to complete the painting by transporting the paint to each area, evaporating the volatile components, and irradiating with UV.

Next, in FIGS. 2 and 3, 28 is an opening / closing door for sealing the setting area 4, the UV irradiation area 5, and the loading / unloading area 6. That is, in the present embodiment, in the setting area 4, the volatile components contained in the paint are evaporated by heating the work, but in order to improve efficiency, the inside of the setting area 4 is heated when the work is heated. It is necessary to keep it sealed. Further, in the UV irradiation area 5, in order to irradiate the work with ultraviolet rays, when UV irradiation is performed in order to prevent adverse effects on the operator due to leakage of ultraviolet rays and to ensure safety. Needs to seal the inside. Further, in the carry-in / carry-out area 6, in order to remove dust and static electricity from the newly carried-in work, it is necessary to seal the inside when the new work is carried in. Furthermore, it is also necessary to prevent heat and ultraviolet rays from leaking to the central area.

On the other hand, as described above, in order to transport the work to the front of the setting area 4, the front of the UV irradiation area 5, and the front of the loading / unloading area 6, the work transporting means 7 sets the transported work to the setting area 4. , Each area must communicate with the central area 2 in order to transfer to the UV irradiation area 5 and the carry-in / out area 6.

Therefore, in this embodiment, the opening / closing door 28 that blocks or releases the communication between the setting area 4 and the central area 2, and the opening / closing door that blocks or releases the communication between the UV irradiation area 5 and the central area 2. 28, and an opening / closing door 28 for blocking or releasing the communication between the loading / unloading area 6 and the central area 2 are provided, whereby the setting area 4, the UV irradiation area 5, and the loading / unloading area 6 are sealed. It is possible to do.

Next, in the figure, 29 transfers the work transported by the work transporting means 7 to the setting area 4, the UV irradiation area 5, and the loading / unloading area 6, or the setting area 4, the UV irradiation area 5, and the loading / unloading area. This is a transfer means for returning the work transferred to the work 6 to the work transfer means 7.

That is, as described above, the work transporting means 7 rotates to move the work inside the painting area 3, the front side of the setting area 4, the front side of the UV irradiation area 5, and the front of the loading / unloading area 6. Since it is supposed to be transported to the side, in order to evaporate the volatile components in the setting area 4 and irradiate the ultraviolet rays in the UV irradiation area 5 and to carry it out from the carry-in / out area 6 for the carried work. , It is necessary to transfer the work to the setting area 4, the UV irradiation area 5, and the loading / unloading area 6, respectively. Therefore, in this embodiment, the work transferred to the front side of the setting area 4 by the work transfer means 7 is transferred to the setting area 4, or the work transferred to the setting area 4 is returned to the work transfer means 7. To transfer the work transferred to the front side of the UV irradiation area 5 by the transfer means 29 and the work transfer means 7 to the UV irradiation area 5, or to return the work transferred to the UV irradiation area 5 to the work transfer means 7. The work transferred to the front side of the carry-in / out area 6 by the transfer means 29 and the work transfer means 7 is transferred to the carry-in / out area 6, or the work transferred to the carry-in / out area 6 is returned to the work transfer means 7. Each of the transport means 29 for the purpose is provided.

Next, FIGS. 9 and 10 are diagrams for explaining the opening / closing door 28 and the work transfer means 29. That is, in this embodiment, each of the opening / closing door 28 and the work transfer means 29 is integrated as a door unit, and this door unit is combined with the setting area 4, the UV irradiation area 5, and the central area 2 in the carry-in / out area 6. It is installed near the connecting part. Further, the width of the door unit is substantially the same as the width of the connecting portion with the central area 2 in the setting area 4, the UV irradiation area 5, and the loading / unloading area 6. In FIGS. 2 and 3, in order to facilitate understanding, the unit is omitted and only the opening / closing door 28 and the work transfer means 29 are shown.

Here, the door unit will be described. In FIGS. 9 and 10, 31 is the door unit. The door unit 31 has a frame-shaped housing 32, and the base 33 is provided in the housing 32, and the base 33 in the housing 32 has a plate-shaped rotary door as an opening / closing door. 28 is rotatably installed. Then, by directing the front surface of the rotary door 28 toward the central area 2, the inner walls on the left and right sides of the housing 32 and the left and right end portions of the rotary door 28 come into contact with each other with almost no gap, thereby setting. The communication between the area 4 and the central area 2, the communication between the UV irradiation area 5 and the central area 2, and the communication between the carry-in / out area 6 and the central area 2 are blocked, respectively, and the setting area 4, the UV irradiation area 5, and the carry-in / out are blocked. The area 6 is sealed, and the rotary door 28 is rotated by an arbitrary angle in this state to release the cutoff.

Next, in the figure, 29 is a work transfer means, and in this embodiment, the work transfer means 29 is rotatably installed on the base 33 like the rotary door 28, and is rotatably installed with the rotation of the rotary door 28. It is supposed to rotate.

Here, the work transfer means 29 will be described. In FIG. 9, the work transfer means 29 has an arm 34, and the arm 34 is movable up and down. Further, movable portions 35 are connected to both ends of the arm 34, and the movable portions 35 are movable in the front-rear direction. Further, on the front side of the movable portion 35, a gripping portion 36 that grips and grips the grip portion 18 (see FIG. 8) that is peripherally provided at an arbitrary position on the main shaft 15 of the work mounting jig 14 is provided. In the sandwiching portion 36, the movable portion 35 moves forward with the work mounting jig 14 conveyed to the front side of the setting area 4, the front side of the UV irradiation area 5, and the front side of the loading / unloading area 6, respectively. The grip portion 18 of each work mounting jig 14 is set at a position where it can be sandwiched.

Next, an installation table 37 is provided on the back side of the rotary door 28 in the housing 32, and the installation table 37 is fixed, and a work connector 38 for connecting the work mounting jig 14 is provided. It is equipped. The work connecting tool 38 has substantially the same configuration as the work connecting portion 13 provided in the work conveying means 7.

Explaining the operation of the door unit 31 configured in this way, the work mounting jig 14 is placed on the front side of the setting area 4, the front side of the UV irradiation area 5, and the front side of the loading / unloading area 6 by the work transporting means 7. Is conveyed, each movable portion 35 advances, and each holding portion 36 sandwiches the grip portion 18 of the work mounting jig 14.

Next, the arm 34 rises, and the movable portion 35 retracts and returns to the original position, whereby the main shaft 15 of the work mounting jig 14 comes out of the insertion hole of the work connecting portion 13, and the work mounting jig 14 is released from the connection with the work connecting portion 13.

Next, the rotary door 28 and the work transfer means 29 rotate while the work transfer means 29 sandwiches the work attachment jig 14. Then, the work mounting jig 14 is transferred into the setting area 4, the UV irradiation area 5, and the loading / unloading area 6, and the setting area 4, the UV irradiation area 5, and the loading / unloading area 6 are sealed by the rotary door 28. ..

After that, the movable portion 35 moves forward, the arm 34 lowers, the work mounting jig 14 is connected to the work connecting tool 38 provided on the installation table 37, and then the movable portion 35 retracts, whereby the work mounting jig 14 is moved forward. The 14 and the work are set in the setting area 4, the UV irradiation area 5, and the loading / unloading area 6. Then, the work set in the setting area 4 and the UV irradiation area 5 is subjected to evaporation of volatile components and ultraviolet irradiation in each area, and the work set in the carry-in / out area 6 is replaced with the work before painting. Will be done. Therefore, when the rotary door 29 and the work transfer means 29 rotate, the movable portion 35 moves forward, and the arm 34 lowers, the work mounting jig 14 is connected to the work connecting tool 38 provided on the installation table 37. Then, the work connecting tool 38 is arranged on the installation table 37 in advance.

Then, after the processing in each area is performed, the movable portion 35 moves forward, and the work mounting jig 14 connected to the work connecting tool 38 provided on the installation table 37 is sandwiched by the sandwiching portion 36, and then the work mounting jig 14 is sandwiched. When the arm 34 is raised and the movable portion 35 is retracted, the work mounting jig 14 is removed from the work connecting tool 38 provided on the installation table 37, and the work transferring means 29 supports the work mounting jig 14.

Then, the rotary door 28 rotates in that state, and thereafter, the work mounting jig 14 is connected to the work connecting portion 13 of the work conveying means 7 by the reverse operation of the above. FIG. 2 is an image diagram showing a state in which the work has been transported. The work mounting jig is rotated while sandwiching the work mounting jig 14, and the work mounting jig is transferred into the setting area 4, the UV irradiation area 5, and the loading / unloading area 6. FIG. 3 is an image diagram showing the state of the jig.

In the figure, 30 is a straightening vane. That is, in this embodiment, the rotary door 28 that seals the setting area 4 and the loading / unloading area 6 is provided with a mesh-shaped straightening vane 30 continuously provided on the back side in a direction orthogonal to the front surface of the rotary door 28. There is. A rectifying plate is also installed on the rear side of the painting robot 8, and when the rotary door 28 is rotated to move the work mounting jig into the setting area 4, the UV irradiation area 5, and the loading / unloading area 6, the central area 2 The central area 2 is blocked back and forth at the central portion of the central area 2, and is supplied from the air supply window 27 on the ceiling on the rear side of the central area 2, but is evenly flowed toward the filter side. However, the current plate is not always necessary.

Next, the painting of the work using the painting system of the present embodiment configured as described above will be described. In FIG. 2, the work transporting means 7 is used to irradiate the inside of the painting area 3, the front side of the setting area 4, and UV irradiation. It shows a state in which the work mounting jig 14 is transported with the work mounted on the front side of the area 5 and the front side of the loading / unloading area 6.

Then, in this state, the work mounting jig 14 conveyed to the front side of the setting area 4, the front side of the UV irradiation area 5, and the front side of the carry-in / out area 6 is set by the door unit 31 by the above-mentioned mechanism, respectively. It is transferred to the area 4, the UV irradiation area 5, and the carry-in / out area 6.

Next, the work mounting jig 14 transported into the painting area 3 by the work transporting means 7 is rotated by rotating the work connecting portion 13 by the above-mentioned method, and the painting robot 8 is used for the work mounting and healing. The paint is sprayed toward the work attached to the tool 14, and the paint is applied.

On the other hand, while the paint is being applied in the painting area 3, the volatile components contained in the paint applied to the work in the painting area 3 are vaporized in the setting area 4. Further, in the UV irradiation area 5, ultraviolet rays are irradiated toward the work in which the volatile components contained in the paint have been vaporized in the setting area 4, and the paint is cured. Further, in the carry-in / carry-out area 6, the work is replaced by taking out the work in which the paint is cured and the painting is completed in the UV irradiation area 5 and connecting a new work before painting to the work connecting portion 13. Further, after the new work is connected to the work connecting portion 13, dust removal and static elimination processing are performed in the carry-in / out area 6.

Each of these treatments is performed within about 1 minute, and within about 1 minute, coating is applied, volatile components are evaporated, the coating is cured by ultraviolet irradiation, and the workpiece is replaced. After that, the work transporting means 7 rotates about 90 degrees, the work newly carried into the carry-in / out area 6 is carried to the painting area 3, and the work to which the paint is applied in the painting area 3 is the setting area. The work that was transported to the front side of 4 and whose volatile components were evaporated in the setting area 4 was transported to the front side of the UV irradiation area 5, and the paint was cured by ultraviolet irradiation in the UV irradiation area 5 to complete the painting. The work is transported to the front side of the loading / unloading area 6, and the same processing as described above is performed in each area. After that, the work transporting means 7 rotates about 90 degrees, and thereafter, the above-mentioned process is repeated until the coating of the planned quantity of work is completed.

As described above, in the coating system of the present embodiment, in the coating system in which the work is painted using UV paint, the paint is applied to the work around the central area in which the work transport means is rotatably installed. The painting area, the setting area for evaporating the volatile components contained in the paint applied to the work, the UV irradiation area for irradiating the work with ultraviolet rays to cure the paint applied to the work, and the painting. By arranging the carry-in / out area for carrying out the completed work and carrying in the work before painting and rotating the work transport means, the work is sequentially painted, set area, UV irradiation area, and carry-in / out area. It is supposed to be transported to and the painting will be completed.

Therefore, unlike the conventional coating system in which the setting and ultraviolet irradiation processes are performed while transporting the workpiece using a conveyor, the entire coating system can be made compact, does not require a large space, and the workpiece can be constructed in a short time. It is possible to complete the painting.

The coating system of the present invention can be applied to all coating systems using UV paint.

1 Painting system 2 Central area 3 Painting area 4 Setting area 5 UV irradiation area 6 Carry-in / out area 7 Work transfer means 8 Painting device 9 Base 10 Rotating part 11 1st swivel arm 12 2nd swivel arm 13 Work connecting part 14 Work Mounting jig 15 Main shaft 16 Arm 17 Supporting means 18 Gripping part 19 Magnet motor coupling 20 Motor base 21 Cover 22 Main body pillar 23 1st arm 24 2nd arm 25 Ball screw spline 26 Spray gun 27 Air supply window 28 Opening / closing door 29 Work Transfer means 30 Straightening plate 31 Door unit 32 Housing 33 Base 34 Arm 35 Moving part 36 Holding part 37 Installation table 38 Work connector

Claims (7)

A painting system that paints workpieces using UV paint.
Central area (2) and
A coating area (3) for applying paint to the work and a volatile component contained in the paint applied to the work, which are installed around the central area (2) in a state of communicating with the central area (2). A setting area (4) for evaporating, a UV irradiation area (5) for irradiating the work with ultraviolet rays to cure the paint applied to the work, and a work before painting while carrying out the finished work. Carry-in / out area (6) for carrying in
A coating device (8) for spraying paint toward the work in the coating area (3), and
It is rotatably installed in the central area (3), and by rotating, the work before painting carried into the carry-in / out area (6) is conveyed into the painting area (3), and the painting area (3). The work coated with the paint is transported to the front side of the setting area (4), and the work whose volatile components are evaporated in the setting area (4) is transported to the front side of the UV irradiation area (5). , The work transporting means (7) for transporting the work irradiated with ultraviolet rays in the UV irradiation area (5) to the front side of the loading / unloading area (6).
Transfer of the work transported to the front side of the setting area (4) into the setting area (4), transfer of the work transported to the front side of the UV irradiation area (5) into the UV irradiation area (5), The workpieces transported to the front side of the carry-in / out area (6) are transferred into the carry-in / carry-out area (6), or in the setting area (4), the UV irradiation area (5), and the carry-in / carry-out area (6). Work transfer means (29) for returning the workpieces in 6) to the front side of the setting area (4), the front side of the UV irradiation area (5), and the front side of the carry-in / out area (6), respectively.
It is provided with an opening / closing door (28) for sealing each of the setting area (4), the UV irradiation area (5), and the carry-in / out area (6).
The work transporting means (7)
A rotating portion (10) rotatably installed in the central area (3) and a plurality of main arms (11) connected at equal angles on the outer peripheral side of the rotating portion (10), respectively. A work connecting portion (13) rotatably provided on the tip end side of the main arm (11) and a driving portion for rotating the work connecting portion (13) are provided.
The work coated with the paint in the painting area (3) is sequentially moved to the setting area (4), the UV irradiation area (5), and the loading / unloading area (6), and the work is moved to the setting area (4) and the UV irradiation. A coating system characterized in that the volatile components contained in the paint applied to the work in the area (5) are evaporated, the work is irradiated with ultraviolet rays, and then the work is carried out from the carry-in / out area (6). The first aspect of the present invention, wherein the drive unit is a motor, and the work connecting portion (13) can be rotated by connecting the motor and the work connecting portion (13) with a belt. Painting system. The coating system according to claim 2, wherein the motor is a coupling (19) and a motor base (20) that rotates the coupling (19) in a non-contact state by a magnetic force. A pair of second swivel arms (12) are connected to each tip portion of the main arm (11), and the work connecting portion (13) is provided on each tip side of the pair of second swivel arms (12). The coating system according to any one of claims 1 to 3, wherein the coating system is provided. The opening / closing door (28) for the setting area and the opening / closing door (28) for the loading / unloading area communicate with each other between the setting area (4) and the central area (2), and the loading / unloading area (6) and the central area (2). The present invention according to any one of claims 1 to 4, wherein a rectifying plate (30) for rectifying the air supplied into the central area (2) when the communication with the) is cut off is provided. Painting system. The coating system according to any one of claims 1 to 5, wherein the coating apparatus (8) is installed in the central area (2). The coating system according to any one of claims 1 to 5, wherein the coating apparatus (8) is installed in the coating area (3).

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