Coating device

Abstract

To provide a coating device capable of coating a coating object to workpiece in a space-saving manner.SOLUTION: A coating device includes: a rotation part which is rotated along a rotation axis, and has a metal plate mounted on its outer periphery; and a spray part for spraying the coating object toward a coating surface of the metal plate mounted on the outer periphery.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a coating apparatus. [Background technology]

[0002] 2. Description of the Related Art Coating devices that coat metal plates with a coating material have been known.

[0003] In this regard, Patent Document 1 discloses a coating device that sprays a metal plate while moving a spray nozzle back and forth so as to perpendicularly intersect with the moving direction of a conveyor table on which the metal plate is placed. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] JP 2006-150263 A Summary of the Invention [Problem to be solved by the invention]

[0005] However, the technique described in Patent Document 1 has a problem in that the size of the device increases due to the space required for decelerating the spray nozzle, since the spray nozzle is reciprocated relative to the metal plate.

[0006] The present invention has been made in view of the above problems, and an object of the present invention is to provide a coating device capable of coating a metal plate with a coating material in a space-saving manner. [Means for solving the problem]

[0007] In order to solve the above problems, the coating device of the present invention comprises a rotating section that rotates along a rotation axis and has a metal plate placed on its outer periphery, and a spraying section that sprays a coating material toward the coating surface of the metal plate placed on the outer periphery.

[0008] In addition, the coating device of the present invention further includes a first transport unit that transports the metal plate to the rotating unit, and a second transport unit that transports the metal plate from the rotating unit to which the coating material has been sprayed and which has been rotated by the rotating unit.

[0009] In addition, the coating device of the present invention further includes a metal plate holding section that holds the metal plate so that the coating surface of the metal plate is exposed, is transported together with the held metal plate by the first conveying section and the second conveying section, and is rotated together with the metal plate by the rotating section.

[0010] The coating device of the present invention further includes a heating section that is provided near the inner periphery or the outer periphery of the rotating section and heats the rotating section.

[0011] Further, a plurality of the heating sections are provided, and the heating sections are arranged closer together as they are farther from the spray section.

[0012] The coating device of the present invention further includes a control unit that controls the operation of the rotating unit to rotate the rotating unit two or more times while the spray unit sprays the coating material onto the coating surface of the metal plate. Effect of the Invention

[0013] According to the present invention, the coating device can apply a coating material to a metal plate in a space-saving manner. [Brief description of the drawings]

[0014] [Figure 1] 1 is a top view showing an overall configuration of a coating apparatus according to an embodiment of the present invention; [Diagram 2] 2 is a front view of the coating apparatus shown in FIG. 1, taken along line II. [Figure 3A] 2 is a top view of the metal plate holding portion shown in FIG. 1. [Figure 3B] 3B is a cross-sectional view taken along line II-II of the metal plate holding portion shown in FIG. 3A. [Figure 3C] 3B is a bottom view of the metal plate holding portion shown in FIG. 3A. [Figure 4A]4 is a diagram showing a first example of the angle between the direction in which the spray unit shown in FIG. 1 sprays the coating material and the coating surface of the metal plate. FIG. [Figure 4B] 1. FIG. 4 is a diagram showing a second example of the angle between the direction in which the spray unit shown in FIG. 1 sprays the coating material and the coating surface of the metal plate. [Figure 4C] 1. FIG. 4 is a diagram showing a third example of the angle between the direction in which the spray unit shown in FIG. 1 sprays the coating material and the coating surface of the metal plate. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0015] Hereinafter, an embodiment of the present invention (hereinafter, referred to as "the present embodiment") will be described with reference to the accompanying drawings. In order to facilitate understanding of the description, the same components and steps in each drawing are designated by the same reference numerals as much as possible, and duplicated descriptions will be omitted.

[0016] Fig. 1 is a top view showing the overall configuration of a coating device 1 according to this embodiment. As shown in Fig. 1, the coating device 1 applies a coating material to a metal plate 2 held by a metal plate holding unit 60. The coating device 1 includes, for example, rotating units 10A and 10B, a plurality of spraying units 20A and 20B, a plurality of heating units 30A and 30B, conveying units 41, 42, 43, and 44, stock units 51 and 52, a plurality of metal plate holding units 60, and a control unit 70.

[0017] In Fig. 1, the direction toward the upper surface side is defined as the Z-axis direction. Also, the direction perpendicular to the Z-axis direction and to the right side when the coating apparatus 1 is viewed from the top side in Fig. 1 is defined as the X-axis direction. Also, in this embodiment, the direction perpendicular to the Z-axis direction and the X-axis direction and toward the back surface side is defined as the Y-axis direction.

[0018] The stock units 51 and 52 are shelves, boxes, stands, etc. for storing metal plate holding units 60 that hold the metal plates 2, and a plurality of metal plates 2 and metal plate holding units 60 are stocked. The stock unit 51 stores the metal plate holding units 60 that hold the metal plates 2 before the coating material is applied thereto. The stock unit 52 stores the metal plate holding units 60 that hold the metal plates 2 after the coating material has been applied thereto. The metal plate holding units 60 stored in the stock unit 51 are moved to the conveying unit 41 by a moving mechanism (not shown) such as a crane or rails, or by the stock unit 51 itself being tilted toward the conveying unit 41, in response to a control command transmitted from the control unit 70.

[0019] Here, the details of the structure of the metal plate 2 and the metal plate holding part 60 will be described with reference to Figs. 3A to 3C. Fig. 3A is a top view of the metal plate holding part 60 shown in Fig. 1. Fig. 3B is a cross-sectional view taken along line II-II of the metal plate holding part 60 shown in Fig. 3A. Fig. 3C is a bottom view of the metal plate holding part 60 shown in Fig. 3A. In this embodiment, one of the top and bottom surfaces of the metal plate holding part 60 is referred to as the front surface. The other of the top and bottom surfaces of the metal plate holding part 60 is referred to as the back surface.

[0020] 3A to 3C, the metal plate 2 is a workpiece such as a metal substrate or a metal separator. The metal plate 2 is formed in a rectangular shape, for example. The metal plate 2 is held by a metal plate holding part 60 and moves together with the metal plate holding part 60 within the coating device 1, and the coating material is applied by the coating device 1.

[0021] The metal plate holding part 60 holds the metal plate 2 by sandwiching the metal plate 2 from the front side and the back side. Specifically, the metal plate holding part 60 holds the metal plate 2, for example, in a state in which the metal plate 2 is sandwiched, by detachably connecting the front side and the back side by a structure such as a bolt or a clamp.

[0022] Furthermore, the metal plate holding part 60 is formed so that, when the metal plate 2 is held, the vicinity of the center of the front side and back side of the metal plate 2 are exposed. Application surface A1 in Fig. 3A is the area where the metal plate 2 is exposed on the front side of the metal plate holding part 60, and is the area where the application material is applied to the metal plate 2. Application surface A2 in Fig. 3C is the area where the metal plate 2 is exposed on the back side of the metal plate holding part 60, and is the area where the application material is applied to the metal plate 2.

[0023] In this embodiment, the metal plate holding part 60 holds the metal plate 2 by sandwiching the metal plate 2 from the front side and the back side, but this is not limited to this and any structure may be used as long as the coated surface of the metal plate 2 is exposed to the outside and the structure is capable of holding the metal plate 2. The metal plate holding part 60 may, for example, sandwich the metal plate 2 from both side sides.

[0024] Returning to Fig. 1, the transport units 41-44 are, for example, moving mechanisms that move along a belt conveyor or a rail, and transport the metal plate 2 together with the metal plate holding unit 60. The transport unit 41 transports the metal plate 2 moved from the stock unit 51 to the transport unit 41 together with the metal plate holding unit 60 in order to the rotation unit 10A.

[0025] The conveying section 42 conveys the metal plate 2 rotated by the rotating section 10A and sprayed with the coating material together with the metal plate holding section 60. Specifically, the conveying section 42 conveys the metal plate 2 rotated by the rotating section 10A, sprayed with the coating material, and moved from the rotating section 10A to the conveying section 42 together with the metal plate holding section 60 in the direction opposite to the rotating section 10A until a first predetermined number of the metal plate holding sections 60 are placed on the conveying section 42 in order. The metal plate holding sections 60 conveyed by the conveying section 42 are turned over by a crane or a plate-shaped rotating mechanism capable of rotating while holding the metal plate holding sections 60, and then moved to the conveying section 43 in response to a control command transmitted from the control section 70. The first predetermined number is, for example, the upper limit number of the metal plate holding sections 60 that can be moved from the conveying section 42 to the conveying section 43 at one time.

[0026] The conveying unit 43 conveys the metal plate 2 moved from the conveying unit 42 to the conveying unit 43 in order to the rotating unit 10B together with the metal plate holding unit 60. The metal plate holding unit 60 conveyed to the rotating unit 10B by the conveying unit 43 leaves the conveying unit 43, and the back surface of the metal plate holding unit 60 is fixedly connected to the outer periphery of the rotating unit 10B by a locking mechanism or the like.

[0027] The conveying section 44 conveys the metal plate 2, which has been rotated by the rotating section 10B and has both sides coated with the coating material, together with the metal plate holding section 60. Specifically, the conveying section 44 conveys the metal plate 2, which has been rotated by the rotating section 10B, sprayed with the coating material, and moved from the rotating section 10B to the conveying section 44, together with the metal plate holding section 60 in the direction opposite to the rotating section 10B side until a second predetermined number of the metal plate holding sections 60 are placed on the conveying section 44 in order. The metal plate holding sections 60 conveyed by the conveying section 44 are moved to the stock section 52 by a moving mechanism (not shown) such as a crane or rail, or by the conveying section 44 itself being tilted toward the stock section 52, in response to a control command transmitted from the control section 70. The second predetermined number is, for example, the upper limit number of the metal plate holding sections 60 that can be moved from the conveying section 44 to the stock section 52 at one time.

[0028] The rotating parts 10A and 10B rotate along a rotation axis O1 or O2, and the metal plate 2 is placed on the outer periphery. The spraying parts 20A and 20B spray the coating material toward the coating surface A2 or A1 of the metal plate 2 placed on the outer periphery of the rotating part 10A or 10B. The heating parts 30A and 30B are, for example, cylindrical heaters. The heating parts 30A and 30B are provided near the inner or outer periphery of the rotating part 10A or 10B, and heat the rotating part 10A or 10B. The details of the structures of the rotating part 10A, the spraying part 20A, and the heating part 30A will be described later with reference to FIG. 2, so that the description thereof will be omitted here.

[0029] The structures of the rotating part 10A, the spraying part 20A, and the heating part 30A will be described in detail with reference to Fig. 2. Fig. 2A is a front view of the coating device 1 shown in Fig. 1, taken from line II. Note that the structures of the rotating part 10B, the spraying part 20B, and the heating part 30B are the same as those of the rotating part 10A, the spraying part 20A, and the heating part 30A, respectively, and therefore will not be described here.

[0030] 2, the rotating unit 10A rotates counterclockwise about a rotation axis O1 when viewed from the Y-axis direction. The metal plate 2 is placed on the outer periphery of the rotating unit 10A by fixing the surface of the metal plate holding unit 60, which has been transported from the transport unit 42, to the outer periphery of the rotating unit 10A using a locking mechanism or the like. The rotating unit 10A moves the metal plate 2, which has been coated with the coating material by the spray unit 20A, to the transport unit 42 by releasing the fixed connection of the metal plate holding unit 60 using a locking mechanism or the like on the transport unit 42 side.

[0031] A plurality of spray units 20A are provided at positions spaced apart from the rotating unit 10A in the Z-axis direction. The spray units 20A spray the coating material in the direction opposite to the Z-axis direction, thereby spraying the coating material toward the back surface of the metal plate holding unit 60 placed on the outer periphery of the rotating unit 10A that is located on the Z-axis side of the outer periphery.

[0032] A plurality of heating units 30A are provided near the inner circumference and outer circumference of the rotating unit 10A so as to extend along the Y-axis direction. For example, the heating units 30A are provided in large numbers near the inner circumference of the rotating unit 10A on the Z-axis direction side, and in large numbers near the outer circumference of the rotating unit 10A on the opposite side to the Z-axis direction, so that the coating material sprayed from the spray unit 20A does not dry before reaching the metal plate 2. The heating units 30A are also provided in an arrangement such that the temperature of the metal plate 2 placed on the rotating unit 10A is kept constant. Specifically, the heating units 30A are provided so as to be denser as they are located farther from the spray unit 20A, so that the temperature of the metal plate 2 before and after the coating material is sprayed increases by the amount of the temperature drop when the coating material is sprayed onto the metal plate 2.

[0033] 1, the control unit 70 controls the operation of each component in the coating device 1. Specifically, the control unit 70 controls the operation of a moving mechanism for moving the metal plate holding unit 60 from the stock unit 51 to the transport unit 41 to move the metal plate holding unit 60 from the stock unit 51 to the transport unit 41. The control unit 70 controls the operation of a moving mechanism for moving the metal plate holding unit 60 from the transport unit 44 to the stock unit 52 to move the metal plate holding unit 60 from the transport unit 44 to the stock unit 52.

[0034] The control unit 70 also controls the operation of the transport units 41 to 44 to transport the metal plate holding unit 60. The control unit 70 also controls the operation of a moving mechanism for moving the metal plate holding unit 60 from the transport unit 42 to the transport unit 43 while turning it over.

[0035] The control unit 70 also controls the rotating unit 10A to perform an operation of fixedly connecting the metal plate holding unit 60 to the outer periphery from the transport unit 41, an operation of rotating the metal plate holding unit 60 along the rotation axis O1, and an operation of releasing the fixed connection and placing the metal plate holding unit 60 on the transport unit 42. The control unit 70 also controls the rotating unit 10B to perform an operation of fixedly connecting the metal plate holding unit 60 to the outer periphery from the transport unit 43, an operation of rotating the metal plate holding unit 60 along the rotation axis O1, and an operation of releasing the fixed connection and placing the metal plate holding unit 60 on the transport unit 44.

[0036] The control unit 70 also controls the operation of the spray units 20A and 20B to spray the application material toward the rotating unit 10A or 10B. The control unit 70 also controls the heating operation of the heating units 30A and 30B.

[0037] The above describes the configuration of the coating apparatus 1. Next, the operation of the coating apparatus 1 will be described with reference to Fig. 1. First, the coating apparatus 1 causes the control unit 70 to heat the heating units 30A and 30B to a predetermined set temperature.

[0038] Next, the coating apparatus 1 causes the control unit 70 to move the multiple metal plate holding units 60 on which the metal plates 2 are placed, from the stock unit 51 to the transport unit 41.

[0039] Next, the coating apparatus 1 causes the control unit 70 to sequentially transport the metal plate holding parts 60 placed on the transport unit 41 to the rotating unit 10A. In addition, the coating apparatus 1 causes the control unit 70 to move the metal plate holding parts 60 that have reached the rotating unit 10A from the transport unit 41 to the rotating unit 10A, and fixes and connects the surface to the outer periphery of the rotating unit 10A. Furthermore, in order to fix the metal plate holding parts 60 to be transported next, the coating apparatus 1 causes the control unit 70 to rotate the rotating unit 10A counterclockwise when viewed from the opposite side to the Y-axis direction so that the mounting surface of the metal plate holding parts 60 in the rotating unit 10A is located above the transport unit 41. The coating apparatus 1 causes the control unit 70 to repeatedly move the metal plate holding parts 60 from the transport unit 41 to the rotating unit 10A and rotate the rotating unit 10A until a predetermined number of metal plate holding parts 60 are mounted on the mounting surface on the outer periphery of the rotating unit 10A.

[0040] Next, the coating device 1 causes the spray unit 20A to spray the coating material toward the outer periphery of the rotating unit 10A, and rotates the rotating unit 10A a predetermined number of rotations counterclockwise when viewed from the opposite side to the Y-axis direction, by the control unit 70. The predetermined number of rotations is, for example, a number between 1 rotation and 50 rotations, and is preferably 15 rotations.

[0041] Next, the coating apparatus 1 causes the control unit 70 to release the connection of the metal plate holding unit 60 from the outer periphery of the rotating unit 10A located above the transport unit 42, and places the disconnected metal plate holding unit 60 on the transport unit 42. The coating apparatus 1 also causes the control unit 70 to transport the metal plate holding units 60 placed on the transport unit 42 in order in the opposite direction to the rotating unit 10A side. Furthermore, in order to release the fixed connection of the metal plate holding unit 60 to be transported next, the coating apparatus 1 causes the control unit 70 to rotate the rotating unit 10A counterclockwise when viewed from the opposite side to the Y-axis direction so that the mounting surface of the metal plate holding unit 60 in the rotating unit 10A is located above the transport unit 42. The coating apparatus 1 causes the control unit 70 to repeatedly move the metal plate holding unit 60 from the rotating unit 10A to the transport unit 42 and rotate the rotating unit 10A until the first predetermined number of metal plate holding units 60 are moved from the mounting surface on the outer periphery of the rotating unit 10A to the transport unit 42.

[0042] Next, the coating apparatus 1 causes the control unit 70 to invert the metal plate holders 60 and move the first predetermined number of metal plate holders 60 from the transport unit 42 to the transport unit 43.

[0043] Next, the coating apparatus 1 causes the control unit 70 to sequentially transport the metal plate holding parts 60 placed on the transport unit 43 to the rotating unit 10B. In addition, the coating apparatus 1 causes the control unit 70 to move the metal plate holding parts 60 that have reached the rotating unit 10B from the transport unit 43 to the rotating unit 10B, and fixes and connects the surface to the outer periphery of the rotating unit 10B. Furthermore, in order to fix the metal plate holding parts 60 to be transported next, the coating apparatus 1 causes the control unit 70 to rotate the rotating unit 10B clockwise when viewed from the opposite side to the Y-axis direction so that the mounting surface of the metal plate holding parts 60 in the rotating unit 10B is located above the transport unit 43. The coating apparatus 1 causes the control unit 70 to repeatedly move the metal plate holding parts 60 from the transport unit 43 to the rotating unit 10B and rotate the rotating unit 10B until a predetermined number of metal plate holding parts 60 are mounted on the mounting surface on the outer periphery of the rotating unit 10B.

[0044] Next, the coating device 1 causes the control unit 70 to spray the coating material from the spray unit 20B toward the outer periphery of the rotating unit 10B, and rotates the rotating unit 10B clockwise a predetermined number of rotations when viewed from the opposite side to the Y-axis direction.

[0045] Next, the coating apparatus 1 causes the control unit 70 to release the connection of the metal plate holding unit 60 from the outer periphery of the rotating unit 10B above the transport unit 44, and places the disconnected metal plate holding unit 60 on the transport unit 44. The coating apparatus 1 also causes the control unit 70 to transport the metal plate holding units 60 placed on the transport unit 44 in order in the opposite direction to the rotating unit 10B side. Furthermore, the coating apparatus 1 causes the control unit 70 to rotate the rotating unit 10A clockwise when viewed from the opposite side to the Y-axis direction so that the mounting surface of the metal plate holding unit 60 in the rotating unit 10B is located above the transport unit 44 in order to release the fixed connection of the metal plate holding unit 60 to be transported next. The coating apparatus 1 causes the control unit 70 to repeatedly move the metal plate holding unit 60 from the rotating unit 10B to the transport unit 44 and rotate the rotating unit 10B until the second predetermined number of metal plate holding units 60 are moved from the mounting surface on the outer periphery of the rotating unit 10B to the transport unit 44.

[0046] Next, the coating apparatus 1 causes the control unit 70 to move the second predetermined number of metal plate holding units 60 from the transport unit 44 to the stock unit 52.

[0047] Thereafter, the coating device 1 repeatedly executes the same operation until coating of a predetermined number of metal plates 2 to be coated with the coating material is completed.

[0048] <Effects> As described above, in this embodiment, the coating device 1 includes a rotating unit 10A that rotates along a rotation axis O1 and has a metal plate 2 placed on its outer periphery, and a spraying unit 20A that sprays a coating material toward the coating surface A1 of the metal plate 2 placed on the outer periphery. As a result, the coating device 1 sprays the coating material toward the rotating part 10A on which the metal plate 2 is placed. Therefore, the coating device 1 can coat the metal plate 2 with the coating material in a space-saving manner.

[0049] In addition, in this embodiment, the coating device 1 further includes a conveying section 41 (first conveying section) that conveys the metal plate 2 to the rotating section 10A, and a conveying section 42 (second conveying section) that conveys the metal plate 2 that has been rotated by the rotating section 10A and has been sprayed with the coating material, from the rotating section 10A. As a result, the coating device 1 transports the metal plate 2 before the coating material is applied to the rotating part 10A, and transports the metal plate 2 after the coating material has been applied from the rotating part 10A. Therefore, the coating device 1 can apply the coating material to the metal plate 2 with a simple configuration and in a small space.

[0050] In addition, in this embodiment, the coating device 1 further includes a metal plate holding section 60 that holds the metal plate 2 so that the coating surface A1 of the metal plate 2 is exposed, is transported together with the held metal plate 2 by conveying sections 41 (first conveying section) and 42 (second conveying section), and is rotated together with the metal plate 2 by the rotating section 10A. Therefore, the coating device 1 does not require a process such as attaching a distinction film to mask areas of the metal plate 2 to which the coating material is not to be applied. Therefore, the coating device 1 can coat the metal plate 2 with the coating material at low cost, simply, and in a space-saving manner.

[0051] In this embodiment, the coating apparatus 1 further includes a heating unit 30A that is provided near the inner periphery or the outer periphery of the rotating unit 10A and heats the rotating unit 10A. As a result, the rotating part 10A of the coating device 1 is heated, so that the coating material can be applied to the metal plate 2 with high efficiency and in a space-saving manner.

[0052] In this embodiment, a plurality of heating units 30A are provided, and the heating units 30A are arranged closer together as they are located farther away from the spray unit 20A. As a result, coating device 1 can compensate for the temperature drop caused by spraying of the coating material by spray section 20A with heating by heating section 30A, and can coat metal plate 2 with the coating material more efficiently and in a smaller space.

[0053] In this embodiment, the coating device 1 further includes a control unit 70 that controls the operation of the rotating unit 10A to rotate the rotating unit 10A two or more times while the spray unit 20A sprays the coating material toward the coating surface A1 of the metal plate 2. Therefore, since the coating device 1 rotates the rotating part 10A two or more times, it is possible to apply the coating material to the metal plate 2 in a space-saving manner while reducing unevenness in application of the coating material to the metal plate 2.

[0054] Here, a description will be given of spraying of the coating material by spray unit 20A when unevenness is provided on coating surfaces A1 and A2 of metal plate 2. Figures 4A to 4C are diagrams showing examples of the direction in which spray unit 20A shown in Figure 1 sprays the coating material and the angle between coating surface A2 of metal plate 2.

[0055] 4A to 4C, the angle of the coating area of ​​metal plate 2 placed on rotating unit 10A with respect to the direction in which spray unit 20A sprays the coating material varies with the rotation of rotating unit 10A. As a result, even if coating surfaces A1 and A2 of metal plate 2 have irregularities, coating device 1 can ensure that the coating material reaches every corner of the irregularities, thereby reducing uneven coating of the coating material on metal plate 2.

[0056] <Modification>

[0057] The present invention is not limited to the above-described embodiment. In other words, the above-described embodiment may be modified by a person skilled in the art as appropriate, and the modifications may be included within the scope of the present invention as long as they include the characteristics of the present invention. In addition, the elements of the above-described embodiment and the modifications described below may be combined to the extent technically possible, and the combinations of these may be included within the scope of the present invention as long as they include the characteristics of the present invention.

[0058] For example, in this embodiment, multiple spray units 20A are provided above the rotating unit 10A, but each may be provided at a height such that the distance from the spray unit 20A to the outer periphery of the rotating unit 10A in the direction opposite to the Z axis is a predetermined distance. According to this configuration, in coating device 1, the distance from spray unit 20A to the outer periphery of rotating unit 10A is constant, so that the coating material is sprayed so as to reach metal plate 2 placed on rotating unit 10A more evenly. Therefore, coating device 1 can coat metal plate 2 with the coating material with high efficiency and in a space-saving manner.

[0059] Furthermore, the control unit 70 may heat the heating units 30A provided between the spray units 20A so that the temperature is higher than the heating units 30A provided other than between the spray units 20A. Specifically, when the control unit 70 heats the heating units 30A provided other than between the spray units 20A to 100°C, the control unit 70 may heat the heating units 30A provided between the spray units 20A to 120°C. According to this configuration, coating device 1 can compensate for the temperature drop caused by spraying of the coating material by spray section 20A, and can therefore coat metal plate 2 with the coating material with high efficiency and in a small space. [Explanation of symbols]

[0060] REFERENCE SIGNS LIST 1...coating device, 2...metal plate, 10A-10B...rotating section, 20A-20B...spraying section, 30A-30B...heating section, 41...transport section (first transport section), 42...transport section (second transport section), 43...transport section (first transport section), 44...transport section (second transport section), 60...metal plate holding section, 70...control section

Claims

1. A rotating part that rotates along a rotation axis and has a metal plate placed on its outer periphery; A spray unit that sprays a coating material onto a coating surface of the metal plate placed on the outer periphery; A coating device comprising:

2. a first conveying unit that conveys the metal plate to the rotating unit; a second transport unit that transports the metal plate rotated by the rotation unit and sprayed with the coating material from the rotation unit; The coating apparatus of claim 1 further comprising:

3. a metal plate holding section that holds the metal plate so that the coating surface of the metal plate is exposed, is transported together with the metal plate by the first transport section and the second transport section, and is rotated together with the metal plate by the rotation section; The coating device of claim 2 further comprising:

4. a heating section provided near an inner periphery or an outer periphery of the rotating section and configured to heat the rotating section; The coating apparatus of claim 1 further comprising:

5. The heating unit is provided in plurality, and is arranged so as to be more densely packed as it is farther from the spray unit. The coating device according to claim 4.

6. A control unit is further provided that controls the operation of the rotation unit so as to rotate the rotation unit two or more times while the spray unit sprays the coating material toward the coating surface of the metal plate. The coating device according to any one of claims 1 to 5.

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