Roll-up mechanism based on breathable and substrate protective film

Abstract

This utility model provides a winding mechanism based on a breathable material and a protective film for the substrate, comprising: a winding device; a substrate conveying wheel for winding a substrate onto the winding device, wherein the substrate is provided with a breathable portion; an edge strip conveying wheel for winding two edge strips, wherein the edge strips are disposed in the breathable portion; a substrate conveying wheel for conveying the substrate and disposed at one end face of the substrate; and a protective film conveying wheel for conveying a protective film, wherein the protective film is positioned correspondingly on both sides of the substrate; in the winding state, the substrate conveying wheel, the edge strip conveying wheel, the substrate conveying wheel, and the protective film conveying wheel are conveyed toward the winding device so that the substrate, the protective film, and the edge strips are disposed on the substrate and correspondingly wound onto the winding device; and after processing reset, in the unwinding state, the winding device can reverse the transmission to unwind and separate the substrate, the edge strips, the substrate, and the protective film to the substrate conveying wheel, the edge strip conveying wheel, the substrate conveying wheel, and the protective film conveying wheel respectively.

Description

Technical Field

[0001] This utility model provides a winding mechanism based on a breathable and substrate protective film, particularly a mechanism that can uniformly wind or unwind a substrate, a base plate, a protective film and edge strips, and after winding, can place the substrate, protective film and edge strips on the base plate to facilitate overall processing. After processing, during unwinding, the substrate, base plate, protective film and edge strips can be separated to facilitate the output of the processed substrate. Background Technology

[0002] Sheet-shaped substrates are usually wound onto a tape, which facilitates storage, stacking, and transportation. If the substrate needs to be output for processing or curing, the tape is output together with the substrate. The substrate can then be separated from the tape for subsequent applications. Therefore, this process is often used for intermediate products such as printed circuit boards.

[0003] The existing mechanisms for bonding the substrate and the tape, as well as the rollers used for winding, are quite complex. They typically only have a substrate winding device and a tape winding device for conveying the substrate and tape separately. By setting up a combined winding device, the substrate and tape can be wound up together. However, this configuration is only suitable for simple bonding of the substrate and tape. Since both the substrate and tape are flat strips, after winding, the substrate will stick to the upper tape after winding, affecting its flatness. Furthermore, during curing, the gas cannot reach the end face of the substrate, which can easily lead to incomplete curing.

[0004] Another existing winding device uses a separate steel strip winding unit to place steel strips on both sides of the substrate to prevent the substrate from sticking to the upper strip. However, this configuration still results in a gap between the strip and the steel strip after winding, which prevents high-temperature gas from effectively flowing to the substrate surface during the curing process, thus causing uneven curing and heating. In addition, existing winding devices are mostly unidirectional, meaning they can only wind the substrate and the strip, and cannot effectively separate them after winding. Furthermore, since the material of the strip may have slight inhomogeneities in thickness, elastic modulus, or structure, when stretched, the uneven parts will cause uneven stress distribution, resulting in local stress concentration and wrinkles. Existing configurations cannot adjust the winding position and stress according to the thickness of the substrate, resulting in unevenness of the substrate during the bonding process with the strip, affecting the quality of subsequent processing and finished products. Utility Model Content

[0005] To address the aforementioned technical problems, this utility model provides a winding mechanism based on a breathable and substrate protective film, comprising: a winding device; a substrate conveying wheel, which winds a substrate onto the winding device from one end, wherein the substrate has at least one breathable portion at at least one end in the lateral direction; an edge strip conveying wheel, disposed at one end of the winding device, and winds two edge strips from one end, wherein the edge strips are correspondingly disposed on both sides of the substrate in the long end direction and located on one end face of the substrate opposite to the breathable portion, and corresponding to the position of the breathable portion; a substrate conveying wheel, which winds a substrate onto the winding device from one end, wherein the substrate is disposed on one end face of the substrate; and a protective film conveying wheel, disposed at one end of the winding device, for conveying two protective films corresponding to each other from one end of the edge strip conveying wheel or the other end of the substrate. One end of the substrate conveying wheel is used to wind the protective film onto the winding device, and the protective film is at least partially disposed on both sides of the substrate, while the edge strip is at least partially pressed against the side of the protective film opposite to the substrate. The winding device, the substrate conveying wheel, the edge strip conveying wheel, the substrate conveying wheel, and the protective film conveying wheel are pivotally mounted on a base. In a winding state, the substrate conveying wheel, the edge strip conveying wheel, the substrate conveying wheel, and the protective film conveying wheel are conveyed toward the winding device so that the substrate, the protective film, and the edge strip are disposed on the substrate and wound onto the winding device. In an unwinding state, the winding device reverses its rotation to unwind the substrate, the edge strip, the substrate, and the protective film onto the substrate conveying wheel, the edge strip conveying wheel, the substrate conveying wheel, and the protective film conveying wheel, respectively.

[0006] According to the aforementioned winding mechanism based on a breathable and substrate protective film, the breathable portion is a plurality of protrusions, which are correspondingly protruded on both sides of the substrate, and there is a gap between the different protrusions.

[0007] According to the aforementioned winding mechanism based on a breathable and substrate protective film, the substrate is disposed between the breathable portions on both sides of the substrate.

[0008] According to the aforementioned roll-up mechanism based on a breathable and substrate protective film, the edge strip is at least partially pressed against one side of the protective film relative to the substrate.

[0009] The aforementioned winding mechanism based on a breathable and substrate protective film further includes a proximity wheel, which is movably disposed on the base and located on one side of the winding device, and can move toward or away from the winding device. The substrate conveying wheel uses the proximity wheel to transfer the substrate with the winding device.

[0010] According to the aforementioned winding mechanism based on a breathable and substrate protective film, the protective film conveying wheel transmits the protective film to the winding device via the proximity wheel.

[0011] According to the aforementioned winding mechanism based on a breathable and substrate protective film, the edge strip conveying wheel and the protective film conveying wheel are located at the upper end of the winding device; the substrate conveying wheel is located at one side end of the winding device, and the substrate conveying wheel is located at the lower end of the winding device.

[0012] According to the aforementioned winding mechanism based on a breathable and substrate protective film, the substrate is a steel strip.

[0013] According to the aforementioned roll-up mechanism based on a breathable and substrate protective film, the substrate is copper foil, aluminum, polyethylene terephthalate (PET), polyvinyl chloride (PVC), polyethylene (PE), polyimide (PI), or liquid crystal polymer (LCP).

[0014] According to the aforementioned winding mechanism based on a breathable and substrate protective film, the protective film is a PI (Polyimide) film.

[0015] The beneficial effects achieved by the technical solution claimed in this utility model are as follows:

[0016] 1. This utility model, through the arrangement of a winding and unwinding device, a substrate conveying wheel, an edge strip conveying wheel, a substrate conveying wheel, and a protective film conveying wheel, can respectively wind up the substrate, edge strip, substrate, and protective film in a corresponding combination. After processing the substrate, it can be reversed to separate and unwind the substrate, edge strip, substrate, and protective film separately, thereby improving the overall efficiency of the combination winding and unwinding of this utility model.

[0017] 2. The present invention allows the substrate to form ventilated portions at both ends in the lateral direction, and the substrate can be disposed on one end face of the substrate between the ventilated portions. The protective film can be at least partially pressed onto both sides of the substrate. Finally, the protective film can be pressed against the edge strip. When processing the substrate (e.g., curing), the substrate assembled into a roll, together with the edge strip, substrate and protective film, can be directly baked at high temperature. The hot air during baking can directly contact the substrate through the ventilated portions of the rolled and stacked substrate, so that the substrate can be heated and cured evenly. The protective film can prevent the high-temperature airflow from causing warping and unevenness on the edge of the substrate, or causing adhesion to adjacent substrates due to warping. It can ensure the flatness and stability of the substrate in the curing process, and improve the quality and precision of the finished product.

[0018] 3. By setting up proximity rollers, this utility model can adjust the distance to the winding device according to the thickness of the substrate or protective film, which can facilitate the substrate to be reliably attached to the substrate and prevent the substrate from wrinkling during the transfer process, thereby further improving the flatness and quality of the substrate before and after processing. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of the present invention and its winding state.

[0020] Figure 2 This is a top view of the substrate of this utility model.

[0021] Figure 3 This is a cross-sectional schematic diagram of the material formed by this utility model.

[0022] Figure 4 This is a cross-sectional schematic diagram of the material formed according to the present invention and after being wound and stacked.

[0023] Figure 5 This is a schematic diagram of the structure of this utility model and its state when unwinding.

[0024] Figure label:

[0025] 1- Winding and unwinding device;

[0026] 2-Substrate transport wheel;

[0027] 21-Substrate;

[0028] 211 - Breathable section;

[0029] 212-Gap;

[0030] 3-Side strip conveyor wheel;

[0031] 31-Side strip;

[0032] 4-Base material conveyor wheel;

[0033] 41-Substrate;

[0034] 5- Protective film conveyor wheel;

[0035] 51 - Protective film;

[0036] 6-Base;

[0037] 7-Proximity wheel. Detailed Implementation

[0038] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0039] Please refer to Figure 1 and Figure 2 This utility model provides a roll-up mechanism based on a breathable and substrate protective film, which includes:

[0040] A winding and unwinding device 1, which can be configured as an active or passive drive roller and can rotate in the forward or reverse direction to wind or unwind a material.

[0041] A substrate conveying wheel 2 is used to wind a substrate 21 onto the winding device 1 from one end, and the substrate 21 is provided with at least one vent 211 at at least one end in the lateral direction; in one embodiment, the substrate 21 can be configured as a strip of steel, and the vent 211 can be pre-formed on both sides in the lateral direction.

[0042] In one embodiment, the venting portion 211 can be configured as a plurality of protrusions, and the protrusions can be formed by dotting or direct forming, and are correspondingly protruded on both sides of the substrate 21. The protrusions can be arranged in a grid, staggered or array manner on the venting portion 211, and there is a gap 212 between different protrusions.

[0043] A side strip conveying wheel 3 is disposed at one end of the winding device 1 and winds up two side strips 31 from one end. The side strips 31 are disposed on both sides of the substrate 21 in the long end direction and are located on one end face of the substrate 21 opposite to the vent 211 and at the position corresponding to the vent 211.

[0044] A substrate conveying roller 4 is provided, which winds a substrate 41 onto the winding device 1 from one end, and the substrate 41 is disposed on one end face of the substrate 21. In one embodiment, the substrate 41 can be any material that needs to be output, produced or cured to facilitate its use as a final product or intermediate product. Therefore, the substrate 41 can be a metal or polymer material, such as copper foil, aluminum, polyethylene terephthalate (PET), polyvinyl chloride (PVC), polyethylene (PE), polyimide (PI) or liquid crystal polymer (LCP), etc. This is only an example and is not intended to limit the application. The substrate 41 is disposed between the venting portions 211 on both sides of the substrate 21, and in one embodiment, it can be disposed on one end face of the substrate 21 opposite to the venting portion 211. This is only an example and is not intended to limit the application.

[0045] A protective film conveying roller 5 is disposed at one end of the winding device 1 to wind two protective films 51 onto the winding device 1, corresponding to one end of the edge strip conveying roller 3 or one end of the substrate conveying roller 4. The protective films 51 are at least partially disposed on both sides of the substrate 41, and the edge strip 31 presses at least partially against one side of the protective film 51 opposite to the substrate 41. In one embodiment, the protective film 51 may be configured as a PI (Polyimide) film. This is only an example and is not intended to be limiting.

[0046] In terms of its configuration, the unwinding device 1, the substrate conveying wheel 2, the edge strip conveying wheel 3, the substrate conveying wheel 4, and the protective film conveying wheel 5 are pivotally mounted on a base 6. In one embodiment, the edge strip conveying wheel 3 and the protective film conveying wheel 5 are located at the upper end of the unwinding device 1; the substrate conveying wheel 4 is located at one side end of the unwinding device 1, and the substrate conveying wheel 2 is located at the lower end of the unwinding device 1 to improve the smoothness of its winding and unwinding.

[0047] When in a single roll state, such as Figure 1 As shown, the substrate conveying roller 2, the edge strip conveying roller 3, the substrate conveying roller 4, and the protective film conveying roller 5 are conveyed towards the winding and unwinding device 1. When the protective film 51 is conveyed along the dotted line path and the substrate 41 is conveyed along the solid line path, the substrate 41 can be first bonded to the substrate 21, and then the protective film 51 and the edge strip 31 cover and protect the substrate 41 in the winding and unwinding device 1. In another embodiment, if both the protective film 51 and the substrate 41 are conveyed along the solid line path, or if both the protective film 51 and the substrate 41 are conveyed along the dotted line path, the substrate 41 and the protective film 51 can be bonded to the substrate 21 simultaneously, and then the protective film 51 is pressed against the substrate by the edge strip 31. In this way, the substrate 41, the protective film 51, and the edge strip 31 can be disposed on the substrate 21 to form a material, such as Figures 2 to 4 As shown, and correspondingly wound into the unwinding device 1;

[0048] After being wound up, the material will form as follows: Figure 4The stacking configuration shown allows the substrate 41 to be positioned on the lower end face of the substrate 21, while the protective films 51 on both sides directly cover the edges of the substrate 41. The protective films 51 are pressed against the edge strips 31 at the ends opposite the substrate 41. The substrate 21 has a vent 211 on its upper end face, and the substrate 41, protective films 51, and edge strips 31 are positioned at its lower end. When the materials are stacked, the edge strips 31 will abut against the top of the vent 211 on the lower substrate 21, allowing for the positioning of the edge strips 31. Simultaneously, the protective films 51 ensure the proper protection of the edges of the substrate 41. During the curing process, the wound material, or the material along with the winding device 1, can be placed in an oven (not shown) for high-temperature curing, where high-temperature gas flows. This design incorporates the vent 211 of this invention. Airflow can enter between the stacked substrates 21 through the side of the material, allowing it to directly contact the surface of the substrate 41. This enables the substrate 41 to cure evenly and improves the efficiency of air convection. During or after curing, it can be uniformly heated or cooled, preventing unevenness caused by uneven heating or cooling of the substrate 41. Furthermore, because the protective film 51 covers the side edge of the substrate 41 and is also pressed down by the edge strip 31, the airflow cannot directly act on the side of the substrate 41. This effectively prevents the substrate 41 from warping or becoming uneven due to the force of the airflow, or from sticking to adjacent substrates due to warping. This effectively maintains the quality, flatness, and integrity of the substrate 41, improving the stability of the substrate 41 during material supply and the quality and precision of the finished product.

[0049] When separation is required after processing the substrate 41, the unwinding device 1 can return to the base 6 and can enter an unwinding state, such as... Figure 5 The winding and unwinding device 1 is reversed to unwind the substrate 21, edge strip 31, substrate 41 and protective film 51 onto the substrate conveying roller 2, edge strip conveying roller 3, substrate conveying roller 4 and protective film conveying roller 5 respectively. This allows the processed substrate 41 to be rewound to the substrate conveying roller 4 for subsequent processing. The unwound substrate 21, edge strip 31 and protective film 51 can be selectively reused.

[0050] In a preferred embodiment, to accommodate different thicknesses of the substrate 41 and to ensure flatness when the substrate 41 is wound and bonded, a proximity roller 7 may be further configured. This roller is movably mounted on the base 6 and located on one side of the winding and unwinding device 1, and can move towards or away from the device. The substrate transport roller 4 uses the proximity roller 7 to transfer the substrate 41 to the winding and unwinding device 1, ensuring that the distance between the winding and unwinding device 1 and the proximity roller 7 is equal to or slightly less than the thickness of the substrate 21 and the substrate 41, allowing for a flat bonding. Therefore, in one embodiment, a distance sensor (not shown) may be configured on the proximity roller 7 to detect and adjust the moving distance of the proximity roller 7. (Here, only...) This is an example, not a limitation; furthermore, the protective film conveying roller 5 can also transfer the protective film 51 to the winding device 1 via the proximity roller 7, so that the substrate 41 is covered by the protective film 51 when it approaches the roller 7. Then, in the winding device 1, the substrate 41 and the protective film 51 are attached together to the substrate 21. After the winding device 1 rolls a certain distance in the winding state, the edge strip 31 is pressed against one side of the protective film 51 to complete the material winding configuration. This winding configuration can improve the smoothness of winding and unwinding. At the same time, it can ensure effective and flat bonding according to the type and thickness of the substrate 41, thereby improving the processing accuracy of the substrate 41 and the flatness and stability during winding.

[0051] The above description is only a few preferred embodiments of this utility model and should not be construed as limiting the scope of implementation of this utility model. All equivalent changes and modifications made in accordance with the protection scope of this utility model and the contents of the specification should still fall within the protection scope of this utility model.

Claims

1. A winding mechanism based on a breathable and substrate protective film, characterized in that, Include: A winding and unwinding device; A substrate conveying wheel, wherein a substrate is wound onto the winding device from one end, and the substrate is provided with at least one vent at at least one end in the lateral direction. A side strip conveying wheel is disposed at one end of the winding device and winds up two side strips from one end. The side strips are disposed on both sides of the substrate in the long end direction and are located on one end face of the substrate relative to the vent portion, and are positioned corresponding to the vent portion. A substrate conveying roller, wherein a substrate is wound onto the winding device from one end, and the substrate is disposed on one end face of the substrate; and A protective film conveying wheel is disposed at one end of the winding device to wind two protective films from one end of the edge strip conveying wheel or one end of the substrate conveying wheel, so as to wind the protective film onto the winding device. The protective film is disposed at least partially on both sides of the substrate, and the edge strip is at least partially pressed against one side of the protective film opposite to the substrate. The winding and unwinding device, the substrate conveying wheel, the edge strip conveying wheel, the substrate conveying wheel, and the protective film conveying wheel are pivotally mounted on a base; In this way, in a winding state, the substrate conveying roller, the edge strip conveying roller, the base material conveying roller and the protective film conveying roller are conveyed toward the winding device so that the base material, the protective film and the edge strip are disposed on the substrate and correspondingly wound into the winding device; In the unwinding state, the unwinding device reverses its rotation to unwind the substrate, the edge strip, the substrate material, and the protective film onto the substrate conveying wheel, the edge strip conveying wheel, the substrate conveying wheel, and the protective film conveying wheel, respectively.

2. The winding mechanism based on a breathable and substrate protective film as described in claim 1, wherein, The venting portion consists of a plurality of protrusions, which are correspondingly protruded on both sides of the substrate, and there is a gap between the different protrusions.

3. The winding mechanism based on a breathable and substrate protective film as described in claim 1, wherein, The substrate is used to be disposed between the ventilated portions on both sides of the substrate.

4. The winding mechanism based on a breathable and substrate protective film as described in any one of claims 1 to 3, wherein, It further includes a proximity wheel, which is movably disposed on the base and located on one side of the unwinding device, and can move toward or away from the unwinding device, and the substrate conveying wheel passes through the proximity wheel to transfer the substrate with the unwinding device.

5. The winding mechanism based on a breathable and substrate protective film as described in claim 4, wherein, The protective film conveying wheel transfers the protective film with the winding device via the proximity wheel.

6. The winding mechanism based on a breathable and substrate protective film as described in any one of claims 1 to 3, wherein, The edge strip conveying wheel and the protective film conveying wheel are located at the upper end of the winding device; the substrate conveying wheel is located at one side end of the winding device, and the base plate conveying wheel is located at the lower end of the winding device.

7. The winding mechanism based on a breathable and substrate protective film as described in any one of claims 1 to 3, wherein, The substrate is a steel strip.

8. The winding mechanism based on a breathable and substrate protective film as described in any one of claims 1 to 3, wherein, The substrate is copper foil, or aluminum, or polyethylene terephthalate, or polyvinyl chloride, or polyethylene, or polyimide, or liquid crystal polymer.

9. The winding mechanism based on a breathable and substrate protective film as described in any one of claims 1 to 3, wherein, The protective film is a PI film.

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