Winding deviation preventing jig and frame

Abstract

A winding deviation preventing jig (20) comprises a first fixing part (21A), a second fixing part (21B), a connection part (22), a first holding part (23A), and a second holding part (23B). The first fixing part (21A) is disposed at one end portion of a cylindrical core around which a sheet is wound. The second fixing part (21B) is disposed at the other end portion of the core. The connection part (22) is inserted through the core and connects the first fixing part (21A) to the second fixing part (21B). The first holding part (23A) is supported by the first fixing part (21A) and holds a first side surface of the sheet. The second holding part (23B) is supported by the second fixing part (21B) and holds a second side surface of the sheet, the second side surface being a surface facing the first side surface.

Description

Wrinkle displacement prevention jig and gantry

[0001] The present invention relates to a roll misalignment prevention jig and a gantry.

[0002] In the manufacture of electronic components or mechanical components, sheets of metal, carbon fiber or resin are used. These sheets are wound around a core in a roll shape and transported. For a sheet wound around a core in a roll shape, relative positional displacement between adjacent layers (hereinafter referred to as roll misalignment) may occur during transportation. In particular, when a release treatment or a lubricating coating treatment is performed on the surface of a film, roll misalignment is likely to occur when the film is wound into a roll. This roll misalignment occurs remarkably particularly when the surface of the film has high smoothness and is slippery. In particular, roll misalignment is likely to occur when the surface roughness Ra is 0.3 µm or less, and when a silicone or aliphatic material is applied as a surface treatment agent, the slippage increases, making roll misalignment more likely to occur. When roll misalignment occurs, it becomes a factor causing wrinkles or tears in the sheet. In addition, in the manufacturing process of electronic components, roll misalignment may lead to a decrease in product yield.

[0003] Patent Document 1 discloses a rolled pressure-sensitive adhesive sheet package comprising: a main body formed by winding, around a core member, a pressure-sensitive adhesive sheet having a substrate or separator, a pressure-sensitive adhesive layer, and a substrate or separator in this order; protection members respectively locked to both end portions of the core member; a binding band for fastening the protection members; and side pads disposed between both edge portions of the rolled pressure-sensitive adhesive sheet wound around the core member and the protection members.

[0004] Japanese Unexamined Patent Application Publication No. 2022-35034

[0005] The rolled pressure-sensitive adhesive sheet package disclosed in Patent Document 1 includes protection members respectively locked to both end portions of the core member. However, when the mass of the core and the sheet wound around the core increases, the inertial force increases, making roll misalignment more likely to occur. To prevent this, it is necessary to firmly fix both ends of the core with high-strength protection members. In such a case, the protection member becomes complicated, which may make installation difficult.

[0006] This invention was made under the circumstances described above, and aims to provide an easily attachable winding slippage prevention jig and frame.

[0007] To achieve the above objective, the winding misalignment prevention jig according to the present invention comprises: a first fixing part disposed at one end of a cylindrical core around which a sheet is wound; a second fixing part disposed at the other end of the core; a connecting part inserted through the core and connecting the first fixing part and the second fixing part; a first holding part supported by the first fixing part and holding the first side surface of the sheet; and a second holding part supported by the second fixing part and holding the second side surface of the sheet which is the opposite surface to the first side surface.

[0008] The connecting portion may include toggle clamps that secure the first fixing portion and the second fixing portion to both ends of the core.

[0009] The first fixing portion may include a first main stopper that presses the first holding portion against the first side surface of the sheet, and the second fixing portion may include a second main stopper that presses the second holding portion against the second side surface of the sheet.

[0010] The first fixing portion may include a first auxiliary stopper positioned closer to the core than the first main stopper, which presses the first holding portion against the first side surface of the sheet, and the second fixing portion may include a second auxiliary stopper positioned closer to the core than the second main stopper, which presses the second holding portion against the second side surface of the sheet.

[0011] To achieve the above objective, the frame according to the present invention comprises: the winding slippage prevention jig; the frame body on which the core around which the sheet is wound is placed; and the core main support portion attached to the frame body and supporting both ends of the core so that the sheet does not come into contact with the frame body.

[0012] The frame may include a core auxiliary support section that supports the core without the sheet wound around it, at a position lower than the height of the core supported by the main core support section.

[0013] The frame may include a first movable mounting member for attaching the first fixing portion to the frame body, and a second movable mounting member for attaching the second fixing portion to the frame body.

[0014] According to the present invention, it is possible to provide an easily attachable winding slippage prevention jig and frame.

[0015] This is a front view showing a frame according to an embodiment of the present invention. This is a side view showing a frame according to an embodiment of the present invention. This is a top view showing a frame according to an embodiment of the present invention. This is a front view showing a winding slip prevention jig according to an embodiment of the present invention. This is a diagram showing a method for attaching the winding slip prevention jig according to an embodiment of the present invention. This is a diagram showing a method for attaching the winding slip prevention jig according to an embodiment of the present invention. This is a diagram showing a two-tiered frame according to an embodiment of the present invention. This is a front view showing a modified frame. This is a side view showing a modified frame. This is a diagram showing an example of using the modified frame. This is a front view showing a modified winding slip prevention jig. This is a diagram showing a modified connection part. This is a diagram showing a modified connection part.

[0016] The following describes a winding misalignment prevention jig and a support frame according to embodiments of the present invention, with reference to the drawings.

[0017] As shown in Figures 1 to 3, the support frame 100 according to this embodiment includes a support frame body 10 on which a cylindrical core 210 around which a sheet 220 is wound is placed, and a winding misalignment prevention jig 20 for preventing the sheet 220 from shifting during winding. The material of the sheet 220 is not particularly limited as long as it can be wound around the core 210. For example, the sheet 220 includes metal sheets containing titanium, copper, stainless steel, and aluminum; carbon fiber sheets; resin sheets containing polyimide, PET (polyethylene terephthalate), and PEN (polyethylene naphthalate); and laminates in which metal / adhesive / resin films are laminated. The thickness of the metal sheet is, for example, 8 to 150 μm. The thickness of the resin film is, for example, 8 to 250 μm. The total thickness of the laminate is, for example, 15 to 350 μm.

[0018] To facilitate understanding, a Cartesian coordinate system is established where the direction in which the axis of core 210 extends is the x-axis direction, the vertical direction is the z-axis direction, and the direction perpendicular to the x-axis and z-axis directions is the y-axis direction, and this system is referenced as appropriate.

[0019] The frame body 10 comprises a base plate 11, main support columns 12 positioned at the four corners of the base plate 11, auxiliary support columns 13 erected on the base plate 11, a main core support section 14 that supports both ends of the core 210 so that the sheet 220 does not come into contact with the frame body 10, and an auxiliary core support section 15 that supports the core 210 on which the sheet 220 is not wound. The frame body 10 is preferably made of a metal including stainless steel or an aluminum alloy. This provides strength and durability.

[0020] The main core support section 14 is provided on the auxiliary support column 13 and supports the cylindrical core 210 around which the sheet 220 is wound, so that the sheet 220 does not come into contact with the frame body 10. In this case, the core 210 around which the sheet 220 is wound is placed in a position where the axis of the core 210 is extended in the x-axis direction. This allows the sheet 220 to be placed in a suspended state, preventing damage to the sheet 220.

[0021] The core auxiliary support section 15 is provided on the bottom plate 11 and supports the core 210 at a position lower than the height of the core 210 supported by the core main support section 14. In this case, the core 210 that is not wound with the sheet 220 is placed with its axis extended in the y-axis direction. This makes it possible to stack the frame body 10 on which the core 210 is placed in two layers after using the sheet 220.

[0022] The winding misalignment prevention jig 20 includes a first fixing portion 21A positioned at one end 211 of a cylindrical core 210 around which the sheet 220 is wound, a second fixing portion 21B positioned at the other end 212 of the core 210, a connecting portion 22 inserted through the core 210 and connecting the first fixing portion 21A and the second fixing portion 21B, a first holding portion 23A supported by the first fixing portion 21A and holding the first side surface 221 of the sheet 220, and a second holding portion 23B supported by the second fixing portion 21B and holding the second side surface 222 which is the opposite surface of the first side surface 221 of the sheet 220.

[0023] As shown in Figure 4, the first fixing part 21A and the second fixing part 21B each have a U-shape when viewed from the y-axis direction and are provided with recesses 24A and 24B into which the core 210 fits. By fitting the core 210 into the recesses 24A and 24B, the first fixing part 21A or the second fixing part 21B can be easily fixed to the core 210. The first fixing part 21A and the second fixing part 21B are preferably made of a metal including stainless steel or aluminum alloy. This provides strength and durability. Furthermore, the recesses 24A and 24B allow the core 210 to be firmly fixed by clamping it from opposite directions in the x-axis direction, as well as from above and below the U-shape of the first fixing part 21A and the second fixing part 21B, i.e., from the z-axis direction. Furthermore, the contact between the upper and lower parts of the U-shaped first fixing part 21A and the second fixing part 21B and the core 210 may be line contact, and preferably surface contact may be achieved by making the upper and lower parts of the U-shaped first fixing part 21A and the second fixing part 21B rounded.

[0024] The first fixing part 21A includes a first main stopper 25A that presses the first holding part 23A against the first side surface 221 of the sheet 220. The second fixing part 21B includes a second main stopper 25B that presses the second holding part 23B against the second side surface 222 of the sheet 220. Specifically, the first main stopper 25A and the second main stopper 25B each have screws 31A and 31B, respectively, and the screws 31A and 31B press the first holding part 23A or the second holding part 23B against the first side surface 221 or the second side surface 222 of the sheet 220. In this way, the first holding part 23A and the second holding part 23B can clamp the sheet 220 from both ends, preventing the sheet 220 from shifting during winding. Furthermore, the first main stopper 25A and the second main stopper 25B may be connected to the first holding portion 23A or the second holding portion 23B, respectively, via ball joints 32A and 32B. In this way, the first holding portion 23A or the second holding portion 23B can be brought into close contact with the first side surface 221 or the second side surface 222 of the sheet 220, respectively. Note that universal joints may be used instead of ball joints 32A and 32B.

[0025] The first fixing portion 21A includes a first auxiliary stopper 26A positioned closer to the core 210 than the first main stopper 25A, which presses the first holding portion 23A against the first side surface 221 of the sheet 220. The second fixing portion 21B includes a second auxiliary stopper 26B positioned closer to the core 210 than the second main stopper 25B, which presses the second holding portion 23B against the second side surface 222 of the sheet 220. Specifically, the first auxiliary stopper 26A and the second auxiliary stopper 26B each have screws 33A and 33B, respectively, which press the first holding portion 23A or the second holding portion 23B against the first side surface 221 or the second side surface 222 of the sheet 220. This prevents the sheet 220 from shifting during winding, even when the thickness of the wound sheet 220 is small. The first auxiliary stopper 26A and the second auxiliary stopper 26B may further include a ball joint or a universal joint.

[0026] The connecting portion 22 includes a connecting rod 41 that connects the first fixing portion 21A and the second fixing portion 21B, and a toggle clamp 42 that fixes the first fixing portion 21A and the second fixing portion 21B to both ends of the core 210. One end 43 of the connecting rod 41 is attached to the first fixing portion 21A. The other end 44 of the connecting rod 41 is equipped with an attachment 45. The toggle clamp 42 includes a base 46 fixed to the second fixing portion 21B, a lever 47 pivotally supported on the base 46, and a hook bolt 48 attached to the lever 47 that engages with the attachment 45. This allows the first fixing portion 21A and the second fixing portion 21B to be fixed to both ends of the core 210, and enables easy attachment and removal. Furthermore, the toggle clamp 42 allows the first fixing part 21A and the second fixing part 21B to be fixed to both ends of the core 210, thereby enabling miniaturization or weight reduction of the first fixing part 21A and the second fixing part 21B, as well as the first holding part 23A and the second holding part 23B, and achieving miniaturization or weight reduction of the entire winding slippage prevention jig 20. The connecting part 22 is preferably made of a metal including stainless steel or aluminum alloy. This provides strength and durability.

[0027] The first retaining portion 23A and the second retaining portion 23B have a flat plate shape and are pressed against the first side surface 221 or the second side surface 222 of the sheet 220. The first retaining portion 23A and the second retaining portion 23B are preferably made of a metal including stainless steel or an aluminum alloy. This provides strength and durability. In addition, the first retaining portion 23A and the second retaining portion 23B may have resin or sponge on their contact surfaces to protect the sheet 220.

[0028] Next, a method for attaching the winding misalignment prevention jig 20 having the above configuration to the cylindrical core 210 around which the sheet 220 is wound will be described with reference to the drawings.

[0029] First, as shown in Figure 5, the first fixing part 21A is placed on one end 211 of the cylindrical core 210 around which the sheet 220 is wound, and the second fixing part 21B is placed on the other end 212 of the core 210. Next, the hook bolt 48 of the toggle clamp 42 is engaged with the attachment 45.

[0030] Next, as shown in Figure 6, the lever 47 of the toggle clamp 42 is lowered. This fixes the first fixing part 21A and the second fixing part 21B to both ends of the core 210. Next, by tightening the screws 31A and 31B, the first main stopper 25A and the second main stopper 25B press their first holding part 23A or second holding part 23B against the first side surface 221 or second side surface 222 of the sheet 220. Furthermore, the first main stopper 25A and the second main stopper 25B are equipped with ball joints 32A and 32B, respectively, which allows the first holding part 23A or the second holding part 23B to be in close contact with the first side surface 221 or second side surface 222 of the sheet 220. In this case, it is not necessary to tighten the screws 33A and 33B of the first auxiliary stopper 26A and the second auxiliary stopper 26B.

[0031] As described above, the winding misalignment prevention jig 20 is attached to the core 210 around which the sheet 220 is wound. This prevents the sheet 220 from being misaligned during winding. Note that two or more winding misalignment prevention jigs 20 may be attached to the core 210 around which the sheet 220 is wound. Doing so will further prevent winding misalignment.

[0032] Furthermore, as shown in Figure 7, if the thickness of the wound sheet 220 is small, tightening the screws 33A and 33B causes the first auxiliary stopper 26A or the second auxiliary stopper 26B to press the first holding part 23A or the second holding part 23B against the first side surface 221 or the second side surface 222 of the sheet 220. This prevents the sheet 220 from shifting during winding, even if the thickness of the wound sheet 220 is small.

[0033] Furthermore, as shown in Figure 8, a core 210 without a sheet 220 wound around it may be placed on the core auxiliary support portion 15 of the frame body 10. In this case, the core 210 can be supported at a lower position than the core 210 supported by the core main support portion 14, making it possible to stack the frame bodies 10 in two layers.

[0034] As described above, the frame 100 and winding misalignment prevention jig 20 according to this embodiment can be easily attached to the core 210 around which the sheet 220 is wound. Specifically, the first fixing part 21A is positioned at one end 211 of the cylindrical core 210 around which the sheet 220 is wound, and the second fixing part 21B is positioned at the other end 212 of the core 210, and the first fixing part 21A and the second fixing part 21B can be fixed to both ends of the core 210 by the toggle clamp 42. In addition, by tightening the screws 31A and 31B, the first main stopper 25A or the second main stopper 25B, and the first holding part 23A or the second holding part 23B, respectively, can be pressed against the first side surface 221 or the second side surface 222 of the sheet 220. As described above, by operating the toggle clamp 42 and tightening the screws 31A and 31B, the winding misalignment prevention jig 20 can be easily attached to the core 210 around which the sheet 220 is wound, thereby preventing winding misalignment. Furthermore, since the toggle clamp 42 fixes the first fixing part 21A and the second fixing part 21B to both ends of the core 210, winding misalignment can be prevented even if the weight of the sheet 220 increases and the inertial force also increases. In addition, by pressing the first holding part 23A or the second holding part 23B against the first side surface 221 or the second side surface 222 of the sheet 220 using the first auxiliary stopper 26A and the second auxiliary stopper 26B, winding misalignment of the sheet 220 can be prevented even if the thickness of the wound sheet 220 is small. Furthermore, by placing the core 210, which does not have the sheet 220 wound around it, on the core auxiliary support portion 15 of the frame body 10, the core 210 can be supported at a lower position than the core 210 supported by the core main support portion 14, making it possible to stack the frame bodies 10 in two layers.

[0035] (Modified Version) In the above-described embodiment, the frame body 10 and the winding slip prevention jig 20 were provided separately, but the winding slip prevention jig 20 may be attached to the frame body 10. In this case, as shown in Figure 9, the frame 100 includes a first movable mounting member 50A for attaching the first fixing part 21A of the winding slip prevention jig 20 to the frame body 10, and a second movable mounting member 50B for attaching the second fixing part 21B of the winding slip prevention jig 20 to the frame body 10. As shown in Figure 10, the first movable mounting member 50A includes a column portion 51A attached to the auxiliary support column 13, and an arm portion 52A connecting the column portion 51A and the first fixing part 21A. The second movable mounting member 50B has the same structure as the first movable mounting member 50A. Furthermore, as shown in Figure 11, the column portion 51A can be stored in the auxiliary support column 13. As a result, when a core 210 without the sheet 220 wound around it is placed on the core auxiliary support portion 15 of the frame body 10, the winding misalignment prevention jig 20 can be stored at a lower position than the main support column 12. In this case, the first holding portion 23A is rotated 90° to reduce its height. By storing the winding misalignment prevention jig 20 at a lower position than the main support column 12, it is possible to stack the frame body 10 in two layers, as shown in Figure 8.

[0036] In the above-described embodiment, an example was described in which the first main stopper 25A and the second main stopper 25B press the first retaining portion 23A or the second retaining portion 23B against the first side surface 221 or the second side surface 222 of the sheet 220 using screws 31A and 31B, respectively. The first main stopper 25A and the second main stopper 25B may further include springs 34A and 34B, respectively, which bias the first retaining portion 23A or the second retaining portion 23B against the first side surface 221 or the second side surface 222 of the sheet 220, as shown in Figure 12. In this way, the first retaining portion 23A or the second retaining portion 23B can be pressed even more firmly against the first side surface 221 or the second side surface 222 of the sheet 220. Alternatively, a biasing means including an elastic body may be provided instead of the springs 34A and 34B.

[0037] In the above-described embodiment, an example was given in which the connecting portion 22 includes a toggle clamp 42, but the connecting portion 22 only needs to be able to connect the first fixing portion 21A and the second fixing portion 21B. As shown in Figure 13, the connecting portion 22 includes a connecting rod 63 having a hole 61 formed at one end and an elongated hole 62 formed at the other end. The hole 61 is fixed to the first fixing portion 21A by a bolt. The elongated hole 62 is fixed to the second fixing portion 21B by a bolt. The distance between the first fixing portion 21A and the second fixing portion 21B is adjusted by the fixing position of the bolt fixed to the elongated hole 62. The connecting rod 63 is preferably made of a metal including stainless steel or an aluminum alloy. This provides strength and durability. Furthermore, as shown in Figure 14, the connecting portion 22 includes an elastic connecting portion 64 made of an elastic material and hooks 65 and 66 arranged at both ends of the elastic connecting portion 64. The elastic connecting portion 64 includes a spring or a rubber cord. In this case, the first fixing part 21A and the second fixing part 21B can be connected by hooking hooks 65 and 66 onto the first fixing part 21A and the second fixing part 21B, respectively. Alternatively, one end of the elastic connecting part 64 may be fixed to the first fixing part 21A or the second fixing part 21B, and the other end of the elastic connecting part 64 may be fixed to the first fixing part 21A or the second fixing part 21B by a hook. The connecting part 22 may also be equipped with a wire, chain, or belt to connect the first fixing part 21A and the second fixing part 21B. In this way, the connecting part 22 can connect the first fixing part 21A and the second fixing part 21B without using a toggle clamp 42. Furthermore, by connecting the first fixing part 21A and the second fixing part 21B with the connecting part 22, the winding slippage prevention jig 20 can be easily attached to the core 210 around which the sheet 220 is wound, similar to the case where the toggle clamp 42 is used, thereby preventing winding slippage. In addition, by using a connecting rod 63 or an elastic connecting part 64 instead of the toggle clamp 42, the connecting part 22 can be simplified or made lighter, thereby achieving simplification or weight reduction of the entire winding slippage prevention jig 20.

[0038] This invention allows for various embodiments and modifications without departing from the broad spirit and scope of the invention. Furthermore, the embodiments described above are for illustrative purposes only and do not limit the scope of the invention. In other words, the scope of this invention is indicated not by the embodiments, but by the claims. Various modifications made within the scope of the claims and the equivalent scope of the meaning of the invention are considered to be within the scope of this invention.

[0039] This application is based on Japanese Patent Application No. 2025-053428, filed on 27 March 2025. The entire specification, claims, and drawings of Japanese Patent Application No. 2025-053428 are incorporated herein by reference.

[0040] 10...frame body, 11...base plate, 12...main support column, 13...auxiliary support column, 14...core main support part, 15...core auxiliary support part, 20...winding slip prevention jig, 21A...first fixing part, 21B...second fixing part, 22...connecting part, 23A...first holding part, 23B...second holding part, 24A, 24B...recess, 25A...first main stopper, 25B...second main stopper, 26A...first auxiliary stopper, 26B...second auxiliary stopper, 31A, 31B, 33A, 33B...screw, 32A, 32B...ball jig Joint, 34A, 34B...spring, 41...connecting rod, 42...toggle clamp, 43, 211...one end, 44, 212...other end, 45...attachment, 46...base, 47...lever, 48...hook bolt, 50A...first movable mounting member, 50B...second movable mounting member, 51A...column, 52A...arm, 61...hole, 62...elongated hole, 63...connecting rod, 64...elastic connecting part, 65, 66...hook, 100...frame, 210...core, 220...sheet, 221...first side, 222...second side

Claims

1. A winding slippage prevention jig comprising: a first fixing portion disposed at one end of a cylindrical core around which a sheet is wound; a second fixing portion disposed at the other end of the core; a connecting portion inserted through the core and connecting the first fixing portion and the second fixing portion; a first holding portion supported by the first fixing portion and holding the first side surface of the sheet; and a second holding portion supported by the second fixing portion and holding the second side surface of the sheet which is the opposite surface to the first side surface.

2. The winding misalignment prevention jig according to claim 1, characterized in that the connecting portion includes toggle clamps for fixing the first fixing portion and the second fixing portion to both ends of the core.

3. The winding misalignment prevention jig according to claim 1 or 2, characterized in that the first fixing part comprises a first main stopper that presses the first holding part against the first side surface of the sheet, and the second fixing part comprises a second main stopper that presses the second holding part against the second side surface of the sheet.

4. The winding misalignment prevention jig according to claim 3, characterized in that the first fixing portion comprises a first auxiliary stopper positioned closer to the core than the first main stopper, which presses the first holding portion against the first side surface of the sheet, and the second fixing portion comprises a second auxiliary stopper positioned closer to the core than the second main stopper, which presses the second holding portion against the second side surface of the sheet.

5. A frame comprising: a winding misalignment prevention jig according to claim 1 or 2; a frame body on which the core around which the sheet is wound is placed; and a core main support portion attached to the frame body and supporting both ends of the core so that the sheet does not come into contact with the frame body.

6. The frame according to claim 5, further comprising a core auxiliary support portion that supports the core, which is not wound with a sheet, at a position lower than the height of the core supported by the core main support portion.

7. The frame according to claim 5, further comprising: a first movable mounting member for attaching the first fixing portion to the frame body; and a second movable mounting member for attaching the second fixing portion to the frame body.

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