Coating device

Abstract

To provide a coating device that is configured so as to suppress a center part of a comma-type roll from bending upward and downward.SOLUTION: A coating device 1 comprises: a comma-type roll 10 extending in a width direction and comprising an edge 12 at an outer periphery thereof; a coating roll 30 arranged with a predetermined interval at the edge of the comma-type roll; and a restricting part 60 that restricts the comma-type roll from bending upward and downward.SELECTED DRAWING: Figure 1

Description

[Technical Field]

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

[0002] In a conventional coating device having a comma-shaped roll with an edge on its outer periphery and a coating roll positioned with a predetermined gap between it and the edge, there was a problem that the center of the comma-shaped roll would bend upward during coating due to the high viscosity of the coating liquid, making it impossible to coat uniformly in the width direction.

[0003] In this regard, for example, Patent Document 1 below discloses a coating device equipped with a restricting device that uses a rod to restrict upward bending of a comma-shaped roll. This coating device can restrict upward bending of the center of the comma-shaped roll. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Patent No. 5627937 Summary of the Invention [Problem to be solved by the invention]

[0005] On the other hand, the present inventors have discovered a problem in that the weight of the comma-shaped roll causes the center of the comma-shaped roll to bend downward, making it impossible to coat uniformly in the width direction.

[0006] The present invention has been made to solve the above-mentioned problems, and has an object to provide a coating device that can prevent the central portion of a comma-shaped roll from bending upward and downward. [Means for solving the problem]

[0007] The above object of the present invention can be achieved by the following means.

[0008] (1) a comma-shaped roll extending in the width direction and having an edge on its outer periphery; a coating roll disposed with a predetermined gap between it and the edge of the comma-shaped roll; and a regulating portion that regulates upward and downward bending of the comma-shaped roll.

[0009] (2) The restriction portion is a threaded portion extending in the vertical direction; a fixing member fixed to the comma-shaped roll, the fixing member having an extending portion extending at least in the horizontal direction and a through-portion through which the screw portion can pass; The coating device according to (1), further comprising: a pair of enlarged diameter portions fixed to the screw portion, arranged to sandwich the extension portion, and having a diameter larger than that of the through portion.

[0010] (3) a first frame to which the comma-shaped roll is attached; and a second frame to which the coating roll is attached, The coating device according to (1) or (2), wherein the first frame and the second frame are configured to be capable of moving toward and away from each other.

[0011] (4) a pair of adjustment units for adjusting the gap between the comma-shaped roll and the coating roll at both ends in the width direction, The adjustment unit a first contact portion provided on the first frame; a second contact portion fixed to the second frame, capable of coming into contact with the first contact portion, and configured to be inclined at the same angle as the first contact portion; The coating device according to (3), further comprising a moving part that is capable of moving the second contact part. [Effects of the Invention]

[0012] According to the coating device described above, the restricting portion restricts the upward and downward bending of the comma-shaped roll, thereby making it possible to provide a coating device that can prevent the center portion of the comma-shaped roll from bending upward and downward. [Brief explanation of the drawings]

[0013] [Figure 1] 1 is a schematic front view showing a coating device according to an embodiment of the present invention. [Figure 2] FIG. 2 is a partially enlarged view showing part A in FIG. [Figure 3] 1 is a diagram showing a state in which a coating device according to the present embodiment applies a coating liquid to a substrate. FIG. [Figure 4] 1 is a schematic side view showing a coating device according to an embodiment of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0014] Hereinafter, an embodiment of the present invention will be described with reference to the accompanying drawings. In the description of the drawings, the same elements are given the same reference numerals, and duplicate explanations will be omitted. Furthermore, the dimensional proportions in the drawings are exaggerated for the convenience of explanation, and may differ from the actual proportions.

[0015] The configuration of a coating apparatus 1 according to this embodiment will be described below with reference to Figs. 1 to 4. Fig. 1 is a schematic front view showing a coating apparatus 1 according to an embodiment of the present invention. Fig. 2 is a partially enlarged view showing part A in Fig. 1. Fig. 3 is a diagram showing how the coating apparatus 1 according to this embodiment applies a coating liquid L to a substrate B. Fig. 4 is a schematic side view showing the coating apparatus 1 according to this embodiment.

[0016] As shown in Figures 1 to 4, the coating device 1 of this embodiment has a comma-shaped roll 10, a pair of first frames 20 to which the comma-shaped roll 10 is attached, a coating roll 30 arranged with a predetermined gap between them, a second frame 40 to which the coating roll 30 is attached, a connecting member 50 that connects the pair of first frames 20, a regulating unit 60 that regulates upward and downward bending of the comma-shaped roll 10, and an adjusting unit 70 that adjusts the gap between the comma-shaped roll 10 and the coating roll 30 at both ends in the width direction.

[0017] 3, the comma-shaped roll 10 has a metal roll 11 and edges 12 provided on the bottom and top of the roll 11. The cross-sectional shape of the comma-shaped roll 10 is configured to be a so-called comma shape.

[0018] The comma type roll 10 is configured to extend in the width direction (left and right direction in FIG. 1). As shown in FIG. 1, the comma type roll 10 is supported by a pair of first frames 20. The comma type roll 10 is fixed so that it cannot rotate when the coating device 1 is in operation. The gap between the comma type roll 10 and the coating rolls 30 is adjusted by an adjustment unit 70, which will be described later.

[0019] The pair of first frames 20 are configured to grip both ends of the comma type roll 10. The pair of first frames 20 are also configured to be connected by a connecting member 50. The pair of first frames 20 and the connecting member 50 have a desired rigidity and are configured to be higher in rigidity than the comma type roll 10. Therefore, deformation of the comma type roll 10 can be suppressed.

[0020] The pair of first frames 20 are configured to be able to move toward or away from the second frame 40 by a drive unit (not shown). Fig. 1 is a diagram showing a state in which the pair of first frame 20 and second frame 40 are close to each other (in other words, a state in which the comma-shaped roll 10 and the coating roll 30 are close to each other).

[0021] The coating roll 30 is configured to extend in the width direction (left-right direction in FIG. 1). The coating roll 30 is rotatably supported by a second frame 40. The coating roll 30 is rotated by a drive unit (not shown) in accordance with the moving speed of the substrate B. When the edge 12 of the comma-shaped roll 10 approaches the coating roll 30, the coating roll 30 is rotated, and the coating liquid L stored in the liquid reservoir 80 is applied to the surface of the coating roll 30 (see FIG. 3).

[0022] As shown in FIG. 3, the liquid reservoir 80 stores the coating liquid L for supplying the coating liquid L between the edge 12 of the comma-shaped roll 10 and the coating roll 30, and is configured to extend from the upper left corner of the coating roll 30 toward the upper left.

[0023] As shown in Fig. 1, the second frame 40 is configured to grip both ends of the coating roll 30. As shown in Fig. 1, the second frame 40 is configured in a U-shape. The second frame 40 has a desired rigidity.

[0024] The restricting portion 60 restricts upward and downward bending of the comma-shaped roll 10. As shown in Figures 1 and 2, the restricting portion 60 has a main body portion 61 extending in the vertical direction and a fixing member 62 whose lower portion is fixed to the comma-shaped roll 10.

[0025] As shown in Figure 2, the main body 61 has a head 63 configured to be grippable, a threaded portion 64 provided below the head 63, a first enlarged diameter portion 65 fixed to the outer periphery of the threaded portion 64, and a second enlarged diameter portion 66 fixed to the outer periphery of the threaded portion 64.

[0026] 2, the fixing member 62 has a first extending portion (corresponding to an extending portion) 68 extending horizontally, and a pair of second extending portions 69 extending vertically downward from both horizontal ends of the first extending portion 68. A through portion 68H is formed in the first extending portion 68, through which the screw portion 64 can pass.

[0027] The outer periphery of the head 63 is knurled to make it easier to grip.

[0028] The threaded portion 64 is arranged to pass through the connecting member 50. The threaded portion 64 is also arranged to pass through the through portion 68H.

[0029] The first expanded diameter portion 65 is disposed above the first extending portion 68 of the fixing member 62. The second expanded diameter portion 66 is disposed below the first extending portion 68 of the fixing member 62. The gap between the first expanded diameter portion 65 and the second expanded diameter portion 66 is approximately the same as the vertical height of the first extending portion 68 of the fixing member 62.

[0030] The first expanded diameter portion 65 is configured to have a larger diameter than the through-hole 68H of the first extending portion 68 of the fixing member 62. The second expanded diameter portion 66 is configured to have a larger diameter than the through-hole 68H of the first extending portion 68 of the fixing member 62.

[0031] In the restricting unit 60 configured as described above, during coating by the coating device 1, the center of the comma-shaped roll 10 tends to bend upward due to the high viscosity of the coating liquid L, and the fixed member 62 fixed to the comma-shaped roll 10 tends to move upward. In this case, the operator rotates the head 63 clockwise when viewed from above. As a result, the first enlarged diameter portion 65 of the restricting unit 60 tends to move vertically downward, restricting the upward movement of the fixed member 62 and thereby restricting the upward movement of the comma-shaped roll 10.

[0032] Meanwhile, in the restricting unit 60 configured as described above, the weight of the comma-type roll 10 causes the center of the comma-type roll 10 to bend downward, and the fixing member 62 fixed to the comma-type roll 10 tries to move downward. In this case, the operator rotates the head 63 counterclockwise when viewed from above. As a result, the second enlarged diameter portion 66 of the restricting unit 60 tries to move upward in the vertical direction, restricting the downward movement of the fixing member 62 and thereby restricting the downward movement of the comma-type roll 10.

[0033] The adjusting units 70 adjust the gap between the comma-shaped roll 10 and the coating roll 30 at both ends in the width direction (left-right direction in FIG. 1). A pair of adjusting units 70 is provided at both ends in the width direction (left-right direction in FIG. 1).

[0034] As shown in FIG. 4, the adjustment unit 70 has a first contact portion 71 formed on the lower right surface of the first frame 20, an attachment member 72 slidably attached to the second frame 40, and a moving portion 73 that slides the attachment member 72 in the upper right and lower left directions.

[0035] A second contact portion 72A capable of contacting the first contact portion 71 is formed on the upper left surface of the mounting member 72. The inclination angle of the first contact portion 71 relative to the horizontal plane and the inclination angle of the second contact portion 72A relative to the horizontal plane are the same. Note that "same" here does not only mean completely same, but also includes some degree of error.

[0036] The moving part 73 can be a known cylinder or the like.

[0037] In the adjustment unit 70 configured in this manner, when it is desired to adjust the gap between the comma type roll 10 and the coating roll 30 to be relatively large, the operator slides the mounting member 72 toward the upper right using the movement unit 73. In this state, by moving the first frame 20 toward the second frame 40, the first contact portion 71 comes into contact with the second contact portion 72A relatively early (in other words, with a small amount of movement), and the gap between the comma type roll 10 and the coating roll 30 can be made relatively large.

[0038] On the other hand, when it is desired to adjust the gap between the comma type roll 10 and the coating roll 30 to be relatively small, the operator slides the mounting member 72 downward and to the left using the moving part 73. By moving the first frame 20 toward the second frame 40 in this state, the first contact part 71 comes into contact with the second contact part 72A relatively late (in other words, by a large amount of movement), and the gap between the comma type roll 10 and the coating roll 30 can be made relatively small.

[0039] As described above, the coating device 1 according to this embodiment includes the comma-shaped roll 10 that extends in the width direction and has an edge 12 on its outer periphery, the coating roll 30 that is disposed with a predetermined gap between it and the edge 12 of the comma-shaped roll 10, and the restricting portion 60 that restricts upward and downward bending of the comma-shaped roll 10. With the coating device 1 configured in this manner, the restricting portion 60 restricts upward and downward bending of the comma-shaped roll 10, thereby preventing the center portion of the comma-shaped roll 10 from bending upward and downward.

[0040] The regulating portion 60 includes a threaded portion 64 extending vertically, a fixed member 62 fixed to the comma-shaped roll 10, a first extending portion 68 extending at least horizontally, and a through-hole 68H through which the threaded portion 64 can pass, and a pair of expanded diameter portions 65, 66 fixed to the threaded portion 64, positioned to sandwich the first extending portion 68, and having a diameter larger than that of the through-hole 68H. According to the coating device 1 configured in this manner, during coating by the coating device 1, the center portion of the comma-shaped roll 10 tends to bend upward due to the high viscosity of the coating liquid L, and the fixed member 62 fixed to the comma-shaped roll 10 tends to move upward. In this case, the operator rotates the head 63 clockwise when viewed from above. As a result, the first expanded diameter portion 65 of the regulating portion 60 tends to move vertically downward, restricting the upward movement of the fixed member 62 and thereby restricting the upward movement of the comma-shaped roll 10. Meanwhile, the weight of the comma-type roll 10 causes the center of the comma-type roll 10 to bend downward, and the fixing member 62 fixed to the comma-type roll 10 tries to move downward. In this case, the worker rotates the head 63 counterclockwise when viewed from above. As a result, the second enlarged diameter portion 66 of the restricting portion 60 tries to move upward in the vertical direction, restricting the downward movement of the fixing member 62 and thus restricting the downward movement of the comma-type roll 10. As described above, the worker can restrict the upward and downward bending of the comma-type roll 10 by simply rotating the head 63.

[0041] The coating device 1 further includes a first frame 20 to which the comma-shaped roll 10 is attached and a second frame 40 to which the coating roll 30 is attached, and the first frame 20 and the second frame 40 are configured to be movable toward and away from each other. With the coating device 1 configured in this manner, the comma-shaped roll 10 and the coating roll 30 can be moved toward and away from each other in an appropriate manner.

[0042] The coating device 1 also has a pair of adjustment units 70 at both ends in the width direction that adjust the gap between the comma-type roll 10 and the coating roll 30. The adjustment units 70 have a first contact unit 71 provided on the first frame 20, a second contact unit 72A slidably attached to the second frame 40, capable of contacting the first contact unit 71, and configured to be inclined at the same angle as the first contact unit 71 with respect to the horizontal plane, and a movement unit 73 that slides and moves the second contact unit 72A. The coating device 1 configured in this manner allows the gap between the comma-type roll 10 and the coating roll 30 to be suitably adjusted at both ends in the width direction.

[0043] The configuration of the coating device 1 according to the present invention has been described above through the embodiments, but the present invention is not limited to the above-described embodiments and can be modified in various ways within the scope of the claims.

[0044] For example, in the above-described embodiment, the regulating portion 60 has a screw portion 64, a fixing member 62, and enlarged diameter portions 65 and 66, but the regulating portion is not limited to the above-described configuration as long as it is configured to regulate the upward and downward bending of the comma-type roll 10.

[0045] Furthermore, in the above-described embodiment, the coating device 1 has the adjustment unit 70, but the coating device does not necessarily have to have an adjustment unit.

[0046] Furthermore, in the above-described embodiment, the first frame 20 is moved toward or away from the second frame 40 , but the second frame 40 may be moved toward or away from the first frame 20 . [Explanation of symbols]

[0047] 1 coating device, 10 comma-shaped rolls, 12 Edge, 20 1st frame, 30 coating rolls, 40 2nd frame, 60 Regulatory Department, 62 Fixing member, 64 threaded portion, 65 1st expanded diameter section (expanded diameter section), 66 Second enlarged diameter section (enlarged diameter section), 68 first extension part (extension part), 68H penetration, 70 Adjustment section, 71 1st contact part, 72A 2nd contact part, 73 Mobile section.

Claims

1. a comma-shaped roll extending in the width direction and having an edge on its outer periphery; a coating roll disposed with a predetermined gap between it and the edge of the comma-shaped roll; and a regulating portion that regulates upward and downward bending of the comma-shaped roll.

2. The restriction portion is a threaded portion extending in the vertical direction; a fixing member fixed to the comma-shaped roll, the fixing member having an extending portion extending at least in the horizontal direction and a through-portion through which the screw portion can pass; The coating device according to claim 1 , further comprising: a pair of enlarged diameter portions fixed to the threaded portion, arranged to sandwich the extending portion, and having a diameter larger than that of the through portion.

3. a first frame to which the comma-shaped roll is attached; a second frame to which the coating roll is attached, The coating device according to claim 1 or 2, wherein the first frame and the second frame are configured to be movable toward and away from each other.

4. a pair of adjustment units for adjusting the gap between the comma-shaped roll and the coating roll at both ends in the width direction, The adjustment unit a first contact portion provided on the first frame; a second contact portion slidably attached to the second frame, capable of coming into contact with the first contact portion, and configured to be inclined at the same angle as the first contact portion with respect to a horizontal plane; The coating device according to claim 3 , further comprising: a moving section that slides and moves the second contact section.

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