Hanging paint rack

Abstract

To improve coating efficiency.SOLUTION: A suspension type coating rack is a suspension type coating rack on which a long coated object can be loaded, and comprises: a longitudinal frame which is located at a center in a depth direction of the coating rack, and is suspended from a transport device; a plurality of transverse frames with a rectangular frame shape that are so provided as to symmetrically expand to both sides in the depth direction from the longitudinal frame, and are located in a vertical direction in a plurality of stages; a multiple kinds of jigs which are attached to both ends in a width direction of the transverse frames, and have an upper surface shape that corresponds to a multiple kinds of coated objects respectively.SELECTED DRAWING: Figure 5

Description

[Technical field]

[0001] The present invention relates to a hanging type painting rack. [Background technology]

[0002] In the past, long objects were generally lined up on the floor of a work area, but when painting multiple objects, a large work space was required.

[0003] Patent Document 1 discloses a coating table for coating a long object to be coated. The coating table described in Patent Document 1 has two support columns standing on a base at an appropriate distance from each other, and has multiple rows of engagement parts between the support columns on the upper surface of which the object to be coated is placed. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Publication No. 08-206576 Summary of the Invention [Problem to be solved by the invention]

[0005] Generally, painting of long objects is done by workers. Therefore, the number of painting steps by the workers is large, and the work is done in a painting atmosphere, so the working environment is not good. In addition, the painting quality varies because the painting work is done by the workers.

[0006] In order to reduce the number of painting man-hours required by workers, improve the working environment, and standardize the quality of the painting, it is conceivable to use a robot to automatically paint objects. However, when a robot paints objects from one side of a painting table, depending on the number of objects, the painting time may become enormous, and there is a demand for improving the painting efficiency.

[0007] Therefore, an object of the present invention is to improve painting efficiency. [Means for solving the problem]

[0008] In order to solve the above problems, a hanging type painting rack according to one embodiment of the present invention comprises: A hanging type coating rack capable of carrying a long object to be coated, A vertical frame is disposed at a center of the painting rack in a depth direction and suspended from a conveying device; A plurality of rectangular horizontal frames arranged in a plurality of stages in the vertical direction, the horizontal frames being provided so as to protrude symmetrically from the vertical frames on both sides in the depth direction; A plurality of types of jigs attached to both ends in the width direction of the horizontal frame and having upper surface shapes corresponding to a plurality of types of objects to be coated, Equipped with. Effect of the Invention

[0009] According to the present invention, the coating efficiency can be improved. [Brief description of the drawings]

[0010] [Figure 1] FIG. 1 is a schematic diagram of a coating system according to the present embodiment. [Diagram 2] FIG. 2 is a schematic diagram of the paint rack transport device according to this embodiment. [Diagram 3] FIG. 3 is a view taken along the line III in FIG. [Figure 4] FIG. 4 is a schematic perspective view of the painting rack according to the present embodiment. [Diagram 5] FIG. 5 is a schematic side view of the painting rack according to this embodiment. [Figure 6] FIG. 6 is a partial enlarged view of the support portion of the lower horizontal frame. [Figure 7] FIG. 7 is a schematic cross-sectional view of the support portion and the jig of the lower horizontal frame. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0011] Hereinafter, an embodiment of the present invention will be described in detail with reference to the accompanying drawings. The specific dimensions, materials, numerical values, etc. shown in the embodiment are merely examples for facilitating understanding of the invention, and do not limit the present invention unless otherwise specified. In this specification and drawings, elements having substantially the same functions and configurations are given the same reference numerals to avoid repeated explanations, and elements not directly related to the present invention are not shown.

[0012] [1. Overall composition of the painting system] Fig. 1 is a schematic diagram of a coating system 100 according to the present embodiment. As shown in Fig. 1, the coating system 100 includes a floor 110 (a coating booth), a robot 120, a conveyor 130, a ceiling rail 140, a coating rack 150, and an object 160 to be coated.

[0013] The robot 120 is placed on the floor 110. The robot 120 is equipped with a painting tool for painting the object 160, and performs automatic painting of the object 160. A pair of robots 120 are provided facing each other across a painting rack 150. The pair of robots 120 execute the same operation according to a program, and perform automatic painting of the object 160. In this embodiment, if a program is created for one of the pair of robots 120, the program for the other robot can be mirrored.

[0014] 1, the conveyor 130 transports the robot 120 in the direction of the arrow R. The transport direction of the conveyor 130 (the direction of the arrow R) roughly coincides with the longitudinal direction of the workpiece 160. Therefore, by being transported by the conveyor 130 in the direction of the arrow R, the robot 120 can paint the workpiece 160 along the longitudinal direction of the workpiece 160.

[0015] The ceiling rail 140 is disposed above the floor 110, and supports the painting rack 150 and guides the movement of the painting rack 150. A transport device 200 (see FIG. 2) for transporting the painting rack 150 is attached to the ceiling rail 140, as described below.

[0016] The painting rack 150 is configured to be capable of placing a plurality of objects to be painted 160. The painting rack 150 is a hanging type painting rack that is hung from a ceiling rail 140 via a transport device 200 described below.

[0017] The object 160 to be coated is made of a long aluminum alloy having a length of, for example, about 6 m. A surface treatment device (not shown) applies a corrosion-resistant surface treatment to the object 160 to be coated. The object 160 to be coated is transferred from the surface treatment device to the coating rack 150 by an operator using an elevator (not shown). The object 160 to which the surface treatment has been applied is placed on the coating rack 150, and the robot 120 paints the surface of the object 160 to be coated placed on the coating rack 150.

[0018] [2. Configuration of the transport device] Fig. 2 is a schematic diagram of a transport device 200 for a painting rack 150 according to this embodiment. Fig. 3 is a view taken along the arrow III in Fig. 2. As shown in Fig. 2, the transport device 200 includes a drive device 210 attached to a ceiling rail 140. The drive device 210 is configured to be movable along the ceiling rail 140. As shown in Fig. 3, the ceiling rail 140 has an I-shape and includes a web and a flange. In Fig. 2, the web of the ceiling rail 140 is not shown in order to make the drawing easier to see.

[0019] 3, a pair of wheels 170 are disposed on both sides of the web of the ceiling rail 140. The pair of wheels 170 are configured to be movable on the flanges of the ceiling rail 140. A carrier 190 is attached to the pair of wheels 170 via a support member 180. The support member 180 supports the carrier 190 and connects the pair of wheels 170 and the carrier 190.

[0020] An engaged portion 190a is formed at the lower end of the carrier 190, and a hook 150a of the painting rack 150 is hung on the engaged portion 190a. A driving device 210 is also connected to the carrier 190. The carrier 190 moves integrally with the driving device 210 as the driving device 210 moves. As the carrier 190 moves, the wheels 170 run on the flange of the ceiling rail 140.

[0021] [3. Configuration of the painting rack] Fig. 4 is a schematic perspective view of the painting rack 150 according to this embodiment. Fig. 5 is a schematic side view of the painting rack 150 according to this embodiment. In the drawings, D1 indicates the depth direction of the painting rack 150, D2 indicates the height direction of the painting rack 150, and D3 indicates the width direction of the painting rack 150.

[0022] As shown in Fig. 4 and Fig. 5, the coating rack 150 includes a vertical frame 151, an upper horizontal frame 152, a middle horizontal frame 153, a lower horizontal frame 154, an upper shielding plate 155, a middle shielding plate 156, and a lower shielding plate 157. Hereinafter, the upper horizontal frame 152, the middle horizontal frame 153, and the lower horizontal frame 154 may be collectively referred to as a horizontal frame. A plurality of objects to be coated 160 (see Fig. 5) are supported by both ends of the horizontal frame in the width direction D3. In addition, the upper shielding plate 155, the middle shielding plate 156, and the lower shielding plate 157 may be collectively referred to as a shielding plate. The shielding plate is made of, for example, acrylic resin.

[0023] The vertical frame 151 is disposed at the center in the depth direction D1 of the painting rack 150. A hook 150a is formed on the upper end of the vertical frame 151. The painting rack 150 is suspended from the carrier 190 by hanging the hook 150a on an engaged portion 190a of the carrier 190.

[0024] A foldable anti-sway portion 151a is formed at the lower end of the vertical frame 151. The anti-sway portion 151a is configured to be capable of transitioning between a protruding state in which it extends from the lower end of the vertical frame 151 toward the floor 110 below, and a folded state in which it extends from the lower end of the vertical frame 151 in a direction parallel to the lower horizontal frame 154.

[0025] When the painting rack 150 is transported by the transport device 200, the anti-sway portion 151a is in a folded state, and when the painting rack 150 is not transported by the transport device 200, the anti-sway portion 151a is in a protruding state. The anti-sway portion 151a is automatically shifted to the folded state and the protruding state by a driving device (not shown). However, this is not limited to this, and the anti-sway portion 151a may be shifted to the folded state and the protruding state manually by an operator.

[0026] When the anti-sway portion 151a is shifted to the protruding state, the anti-sway portion 151a comes into contact with the stopper 110a fixed to the floor 110. This makes it possible to suppress the vibration of the painting rack 150 suspended from the carrier 190 during painting of the workpiece 160. Furthermore, when the anti-sway portion 151a is shifted to the folded state, the anti-sway portion 151a moves away from the stopper 110a and no longer comes into contact with the stopper 110a. This makes it possible to easily transport the painting rack 150 by the transport device 200.

[0027] The upper horizontal frame 152 is a rectangular frame provided so as to protrude from the vertical frame 151 on both sides in the depth direction D1. The upper horizontal frame 152 is located higher than the middle horizontal frame 153 and the lower horizontal frame 154. The length of the upper horizontal frame 152 in the depth direction D1 is shorter than the length of the middle horizontal frame 153 and the lower horizontal frame 154 in the depth direction D1. However, this is not limited thereto, and the length of the upper horizontal frame 152 in the depth direction D1 may be longer than or equal to the length of the middle horizontal frame 153 and the lower horizontal frame 154 in the depth direction D1. The upper horizontal frame 152 has support parts 152a at both ends in the width direction D3 that support the object to be coated 160. The length of the upper horizontal frame 152 in the width direction D3 is equal to the length of the middle horizontal frame 153 and the lower horizontal frame 154 in the width direction D3. However, this is not limited to the above, and the length of the upper horizontal frame 152 in the width direction D3 may be different from the lengths of the middle horizontal frame 153 and the lower horizontal frame 154 in the width direction D3.

[0028] The middle horizontal frame 153 is a rectangular frame provided so as to protrude from the vertical frame 151 on both sides in the depth direction D1. The middle horizontal frame 153 is located lower than the upper horizontal frame 152 and higher than the lower horizontal frame 154. The length of the middle horizontal frame 153 in the depth direction D1 is equal to the length of the lower horizontal frame 154 in the depth direction D1. However, this is not limited thereto, and the length of the middle horizontal frame 153 in the depth direction D1 may be different from the length of the lower horizontal frame 154 in the depth direction D1. The middle horizontal frame 153 has support portions 153a that support the workpiece 160 at both ends in the width direction D3.

[0029] The lower horizontal frame 154 is a rectangular frame provided so as to protrude on both sides in the depth direction D1 from the vertical frame 151. The lower horizontal frame 154 is positioned lower than the upper horizontal frame 152 and the middle horizontal frame 153. The lower horizontal frame 154 has support portions 154a for supporting the object to be coated 160 at both ends in the width direction D3.

[0030] In this manner, the painting rack 150 of this embodiment is provided with a plurality of rectangular horizontal frames 152, 153, 154 arranged in a plurality of stages in the vertical direction. In this embodiment, an example will be described in which three stages of horizontal frames 152, 153, 154 are provided on the vertical frame 151. However, this is not limited thereto, and the vertical frame 151 may be provided with, for example, two stages of horizontal frames or four or more stages of horizontal frames.

[0031] The upper shielding plate 155 is provided on the vertical frame 151 and is located between the upper horizontal frame 152 and the hooks 150a in the height direction D2. The upper shielding plate 155 divides the space between the upper horizontal frame 152 and the hooks 150a in the depth direction D1, with the vertical frame 151 as the boundary.

[0032] The middle shielding plate 156 is provided on the vertical frame 151, and is located between the upper horizontal frame 152 and the middle horizontal frame 153 in the height direction D2. The middle shielding plate 156 divides the space between the upper horizontal frame 152 and the middle horizontal frame 153 in the depth direction D1, with the vertical frame 151 as the boundary.

[0033] The lower shielding plate 157 is provided on the vertical frame 151, and is located between the middle horizontal frame 153 and the lower horizontal frame 154 in the height direction D2. The lower shielding plate 157 divides the space between the middle horizontal frame 153 and the lower horizontal frame 154 in the depth direction D1, with the vertical frame 151 as the boundary.

[0034] [4. Jig configuration] FIG. 6 is a partial enlarged view of the support portion 154a of the lower horizontal frame 154. As shown in FIG. 6, a jig 158 is attached to the support portion 154a of the lower horizontal frame 154. The jig 158 is attached to both ends of the lower horizontal frame 154 in the width direction D3. Here, the configuration of the support portion 154a of the lower horizontal frame 154 will be described, but the support portion 152a of the upper horizontal frame 152 and the support portion 153a of the middle horizontal frame 153 have the same configuration. That is, the jig 158 is also attached to the support portion 152a of the upper horizontal frame 152 and the support portion 153a of the middle horizontal frame 153. Therefore, hereinafter, the configuration of the support portion 154a of the lower horizontal frame 154 will be described in detail, and the configuration of the support portion 152a of the upper horizontal frame 152 and the support portion 153a of the middle horizontal frame 153 will not be described.

[0035] An upper surface 158a of the jig 158 protrudes upward from the upper surface of the lower horizontal frame 154, and has an engagement portion 158b that matches the shape of the workpiece 160. The jig 158 can position and hold the workpiece 160 by engaging the workpiece 160 with the engagement portion 158b. The jig 158 holds the workpiece 160 with the lower horizontal frame 154 and the workpiece 160 not in contact with each other. A plurality of engagement portions 158b are provided in the depth direction D1 of the jig 158. However, only one engagement portion 158b may be provided in the depth direction D1 of the jig 158.

[0036] Fig. 7 is a schematic cross-sectional view of the support portion 154a of the lower horizontal frame 154 and the jig 158. As shown in Fig. 7, a pair of magnets 154b is provided on both sides of the support portion 154a of the lower horizontal frame 154 in the width direction D3. In addition, a pair of hinges 154c is provided on the lower surface of the support portion 154a of the lower horizontal frame 154 on both sides of the width direction D3.

[0037] Two types of jigs 158, 159 are attached to both surfaces of the support portion 154a in the width direction D3. The jigs 158, 159 differ in at least the shape of the engagement portion 158b, and differ from each other in either size or shape. The jigs 158, 159 have engagement portions 158b with upper surface shapes that respectively correspond to the multiple types of objects 160 to be coated. In this way, multiple types of jigs 158, 159 having upper surface shapes that respectively correspond to the multiple types of objects 160 to be coated are attached to the support portion 154a.

[0038] The jigs 158 and 159 are configured to be rotatable by a hinge 154c. The hinge 154c allows the upper surfaces 158a and 159a of the jigs 158 and 159 to move between a protruding position (placement position) protruding upward from the upper surface of the support portion 154a and a retracted position retracted downward from the upper surface of the support portion 154a. When the workpiece 160 is coated, one of the two types of jigs 158 and 159 is located at the protruding position, and the other of the two types of jigs 158 and 159 is located at the retracted position. FIG. 7 shows an example in which the jig 158 is located at the protruding position and the jig 159 is located at the retracted position.

[0039] The magnet 154b attracts and holds the jigs 158, 159 located at the protruding position. That is, the magnet 154b fixes the jigs 158, 159 arranged at the protruding position (mounting position). In Fig. 7, the jig 158 is located at the protruding position, so the magnet 154b attracts and holds the jig 158. The magnet 154b enables the jigs 158, 159 to maintain the protruding position and prevents them from unintentionally moving to the retracted position.

[0040] The jigs 158, 159 are configured to be detachable from the support portion 154a. Therefore, various variations of the jigs 158, 159 can be attached to both side surfaces of the support portion 154a in the width direction D3. Therefore, the support portion 154a of the lower horizontal frame 154 can support the workpieces 160 of various shapes by replacing the jigs 158, 159 that match the shape of the workpieces 160.

[0041] [5. Summary] As described above, the painting rack 150 of this embodiment has the horizontal frames 152, 153, and 154 that are provided so as to protrude symmetrically on both sides in the depth direction D1 from the vertical frame 151. Therefore, compared to a case in which the horizontal frames are provided so as to protrude only on one side in the depth direction D1 from the vertical frame 151, the rigidity of the horizontal frames 152, 153, and 154 can be reduced, and weight can be reduced.

[0042] The robots 120 are disposed on both sides of the painting rack 150 in the depth direction D1 so as to sandwich the vertical frame 151, and paint the workpiece 160 supported by the horizontal frames 152, 153, and 154. The robots 120 can paint the workpiece 160 from both sides (two directions) in the depth direction D1 of the painting rack 150, improving painting efficiency. Furthermore, by using the robots 120 to paint the workpiece 160, it is possible to reduce the number of painting steps required by workers, improve the working environment, and achieve uniform painting quality.

[0043] In addition, a plurality of types of jigs 158, 159 having upper surface shapes corresponding to a plurality of types of objects to be coated are attached to the support portions 152a, 153a, 154a of the horizontal frames 152, 153, 154 in this embodiment. This makes it possible to support objects 160 of various shapes via the jigs 158, 159 without changing the shapes of the horizontal frames 152, 153, 154. It is only necessary to replace the jigs 158, 159 according to the shape of the object 160 to be coated, which reduces costs compared to replacing the horizontal frames 152, 153, 154 themselves.

[0044] In addition, the jigs 158 and 159 are provided with an engagement portion 158b that can engage with the workpiece 160. Therefore, the engagement portion 158b can support the workpiece 160 in the same position and in the same posture every time for the same type of workpiece 160, and the position accuracy of the workpiece 160 can be improved. As a result, the time and cost required for the worker to position the workpiece 160 can be reduced. In addition, the engagement portion 158b allows the workpiece 160 to be easily positioned, and the safety of the worker who handles the heavy object can be improved. If the positions of the engagement portions 158b of the jigs 158 and 159 in the depth direction D1 and height direction D2 are set to the same positions, the painting position of the workpiece 160 can be fixed regardless of the type of the jigs 158 and 159, and the efficiency of the robot teaching work can be improved.

[0045] In addition, the jigs 158 and 159 in this embodiment are configured to be movable between a protruding position (placing position) and a retracted position by the hinge 154c. This allows the type of the jigs 158 and 159 to be switched according to the type, size, and shape of the workpiece 160.

[0046] Furthermore, the horizontal frames 152, 153, and 154 of this embodiment are provided with magnets 154b that fix the jigs 158 and 159 placed in the placement positions, thereby making it possible to prevent the jigs 158 and 159 from unintentionally moving to the retracted positions.

[0047] In addition, the vertical frame 151 of this embodiment is provided between the horizontal frames 152, 153, 154 in multiple stages and includes shielding plates 155, 156, 157 erected at the center in the depth direction D1. This reduces interference between the coating areas of a pair of robots 120 facing each other in the depth direction D1 when they paint a workpiece 160.

[0048] In addition, the lower end of the vertical frame 151 in this embodiment is provided with a foldable anti-sway portion 151a that protrudes and abuts against a stopper 110a fixed to the floor. This makes it possible to prevent the hanging type painting rack 150 from swinging in the depth direction D1 while the robot 120 is painting.

[0049] Although the embodiment of the present invention has been described above with reference to the attached drawings, it goes without saying that the present invention is not limited to such an embodiment. It is clear that a person skilled in the art can think of various modified or altered examples within the scope of the claims, and it is understood that such examples also naturally belong to the technical scope of the present invention.

[0050] In the above embodiment, an example has been described in which the jigs 158 and 159 are configured to be movable between the placement position and the retracted position. However, this is not limited thereto, and for example, either the jigs 158 or 159 may be fixed to the support portion 154a and configured to be immovable between the placement position and the retracted position.

[0051] In the above embodiment, the example in which the support portion 154a includes the hinge 154c and the magnet 154b has been described. However, the present invention is not limited to this example, and the support portion 154a does not necessarily need to include the hinge 154c and the magnet 154b.

[0052] In the above embodiment, an example has been described in which three shielding plates 155, 156, and 157 are provided on the vertical frame 151. However, this is not limited thereto, and one shielding plate extending from the upper end to the lower end of the vertical frame 151 may be provided. Also, the vertical frame 151 does not necessarily need to be provided with the shielding plates 155, 156, and 157.

[0053] In the above embodiment, an example has been described in which the anti-sway portion 151a is provided at the lower end of the vertical frame 151. However, the present invention is not limited to this, and the anti-sway portion 151a does not necessarily have to be provided at the lower end of the vertical frame 151. [Explanation of symbols]

[0054] 100 Painting System 110 beds 110a Stopper 120 Robot 130 Conveyor 140 Ceiling rail 150 Paint Rack 150a hook 151 Vertical Frame 151a Vibration prevention part 152 Upper horizontal frame 153 Middle horizontal frame 154 Lower horizontal frame 154a Support part 154b Magnet 154c hinge 155 Upper shield 156 Middle shielding plate 157 Lower shielding plate 158 Jig 158a Top side 158b Engagement part 160 Object to be painted 170 wheels 180 Support member 190 Career 190a Engaged part 200 Transport device 210 Drive unit

Claims

1. A hanging type coating rack capable of carrying a long object to be coated, A vertical frame is disposed at a center of the painting rack in a depth direction and suspended from a conveying device; A plurality of rectangular horizontal frames arranged in a plurality of stages in the vertical direction so as to protrude symmetrically from the vertical frame on both sides in the depth direction; A plurality of types of jigs attached to both ends in the width direction of the horizontal frame and having upper surface shapes corresponding to a plurality of types of objects to be coated, A hanging paint rack equipped with:

2. The jig is provided to be movable between a placement position protruding upward from the upper surface of the horizontal frame and a retracted position retracted downward from the upper surface of the horizontal frame.

2. The hanging type painting rack according to claim 1.

3. a hinge for rotatably mounting the jig to both ends of the horizontal frame in the width direction between the placement position and the retracted position; A magnet that fixes the jig disposed at the placement position; and Further comprising:

3. The hanging type painting rack according to claim 2.

4. The coating rack further includes a shielding plate provided between the horizontal frames and erected at the center of the depth direction of the coating rack. The hanging type painting rack according to any one of claims 1 to 3.

5. The vertical frame further includes a vibration prevention part that is foldably protruding from the lower end thereof and abuts against a stopper that is fixed to the floor. The hanging type painting rack according to any one of claims 1 to 4.

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