Roller clamping device and coating equipment

Abstract

The utility model discloses a kind of roller clamping devices and coating equipment, applied to the winding system of conveying base material, comprising: base frame;Clamping mechanism, set in the base frame, it can be switched to clamping state or loosening state, the clamping mechanism includes first roller and second roller;Wherein, when the clamping mechanism is in clamping state, the rotation axis of the first roller and the second roller is parallel to the TD direction of base material, the first roller and the second roller cooperate and clamp base material, and limit base material in TD direction;When the clamping mechanism is in loosening state, the first roller and the second roller loosen base material, and remove the limit in TD direction.The utility model uses above structure, can effectively avoid the shrinkage deformation in base material coating process.

Description

Technical Field

[0001] This utility model relates to the field of coating equipment technology, and in particular to a roller clamping device and coating equipment. Background Technology

[0002] Composite current collectors are an indispensable component of batteries. In their preparation, a roll-to-roll production process is typically used to magnetron sputter a metal layer onto the surface of a polymer substrate. Then, a slitting machine is used to cut the substrate to a preset width, followed by an electroplating process to thicken the metal layer. Finally, an anti-oxidation layer is prepared on the surface of the metal layer to complete the preparation.

[0003] However, the roll-to-roll production process, which uses a winding system to unwind and transport the substrate, can achieve continuous and efficient coating operations. However, due to the high temperature radiation of the coating equipment cavity, the substrate is prone to shrinkage and deformation, resulting in wrinkles and affecting the yield.

[0004] Therefore, it is necessary to improve the existing technology to overcome the aforementioned defects. Utility Model Content

[0005] The purpose of this invention is to provide a roller clamping device and a coating equipment that can effectively prevent shrinkage and deformation of the substrate during the coating process.

[0006] The purpose of this utility model is achieved through the following technical solution: a roller clamping device, applied to a winding system for conveying substrates, comprising:

[0007] Base frame;

[0008] A clamping mechanism is provided on the base frame, which can be switched to a clamping state or a releasing state. The clamping mechanism includes a first roller and a second roller.

[0009] When the clamping mechanism is in the clamping state, the rotation axes of the first roller and the second roller are parallel to the TD direction of the substrate. The first roller and the second roller cooperate to clamp the substrate and limit the substrate in the TD direction. When the clamping mechanism is in the releasing state, the first roller and the second roller release the substrate and release the limitation in the TD direction.

[0010] Furthermore, the clamping mechanism includes:

[0011] A first mounting block is movably connected to the base frame, and a first roller is rotatably mounted on the first mounting block;

[0012] The second mounting block is fixedly connected to the base frame, and the second roller is rotatably mounted on the second mounting block, with the rotation axis of the second roller parallel to the TD direction;

[0013] A clamping drive component is disposed on the base frame and is connected to the first mounting block in a transmission manner;

[0014] The clamping drive is adapted to drive the first mounting block to move to a first position or a second position. When the first mounting block is in the first position, the rotation axis of the first roller is parallel to the TD direction and cooperates with the second roller to clamp the substrate. When the first mounting block switches to the second position, the first roller releases the substrate.

[0015] Furthermore, the first roller and the second roller are respectively disposed on both sides of the substrate in the thickness direction. In the thickness direction of the substrate, the projection of the first roller at the second position and the substrate do not coincide.

[0016] Furthermore, the first mounting block is rotatably connected to the base frame, the rotation axis of the first mounting block is parallel to the TD direction, and the clamping drive is adapted to drive the first mounting block to rotate to a first position or a second position.

[0017] Furthermore, a limiting structure is provided on the base frame, and when the first mounting block moves to the first position or the second position, the limiting structure is adapted to abut against the first mounting block.

[0018] Furthermore, the base frame is provided with a sensing structure, which is adapted to sense the first mounting block when the first mounting block moves to the first position or the second position.

[0019] Furthermore, an adjustment structure is provided between the second roller and the second mounting block, the adjustment structure being adapted to adjust the second roller along the thickness direction of the substrate.

[0020] Furthermore, it also includes an adjustment mechanism, the adjustment mechanism comprising:

[0021] Fixed base;

[0022] A sliding seat is slidably disposed on the fixed seat along the TD direction;

[0023] A transmission assembly is disposed on the fixed base and is throttle connected to the sliding base;

[0024] The base frame is fixed to the sliding seat, and the transmission assembly is adapted to drive the sliding seat to adjust its position along the TD direction.

[0025] In addition, this utility model also provides a coating device, comprising:

[0026] A winding system used to transport substrate;

[0027] The aforementioned roller clamping device;

[0028] The roller clamping device is located on the substrate conveying path. The number of roller clamping devices is at least one pair, and each roller clamping device in each pair is arranged opposite to each other along the TD direction to clamp the substrate on both sides of the TD direction respectively.

[0029] Furthermore, the number of roller clamping devices is two pairs, one pair of which is located at the unwinding end of the substrate, and the other pair of which is located at the winding end of the substrate.

[0030] Compared with the prior art, the present invention has the following advantages: By adding a roller clamping device to the winding system, the present invention includes a clamping mechanism with a first roller and a second roller. When the clamping mechanism is switched to the clamping state, the first roller and the second roller cooperate to clamp the substrate and limit the substrate in the TD direction. When the substrate is heated and shrinks laterally in the TD direction, the clamping force applied by the first roller and the second roller can strongly counteract the shrinkage force of the substrate, ensuring that the substrate is wound in the winding system in a flat and wrinkle-free state, thereby improving the yield. When the clamping mechanism is in the loosened state, the first roller and the second roller can release the substrate, which is convenient for the disassembly and replacement of the substrate. In addition, since the rotation axes of the first roller and the second roller are parallel to the TD direction when the clamping mechanism is in the clamping state, the substrate can be transported normally in the MD direction of the winding system, avoiding obstruction by the clamping of the first roller and the second roller. Attached Figure Description

[0031] Figure 1 This is a schematic diagram of the clamping mechanism of the roller clamping device of this utility model.

[0032] Figure 2 This is a schematic diagram of the roller clamping device of this utility model in the clamping state.

[0033] Figure 3 yes Figure 2 A schematic diagram of the structure when switching to the released state.

[0034] Figure 4 yes Figure 2 A schematic diagram of the roller clamping device in another direction.

[0035] Figure 5 This is a schematic diagram of the installation of the first roller and the first mounting block in this utility model.

[0036] Figure 6 This is a schematic diagram of the installation of the second roller and the second mounting block in this utility model.

[0037] Figure 7 This is a schematic diagram of the coating equipment of this utility model.

[0038] Explanation of reference numerals in the attached figures:

[0039] 1000, Roller clamping device; 2000, Winding system; 3000, Substrate; 100, Base frame; 110, Substrate; 111, First plate surface; 112, Second plate surface; 113, First side; 114, Second side; 120, First bearing seat; 130, Support; 131, First block; 132, Second block; 200, Clamping mechanism; 210, First roller; 211, First shaft; 220, Second roller; 221, Second shaft; 230, First mounting block; 231, Connecting end; 232, Transmission end; 233, First abutting side; 234, Second abutting side; 240, Second mounting block; 241 1. Adjustment hole; 250. Clamping drive component; 300. Limiting structure; 310. First limiting component; 320. Second limiting component; 400. Sensing structure; 410. First sensing component; 420. Second sensing component; 510. Adjusting bolt; 520. Locking nut; 600. Adjusting mechanism; 610. Fixed base; 611. Connecting surface; 612. Guide rail; 613. Receiving groove; 620. Sliding seat; 621. Dovetail groove; 630. Transmission assembly; 631. Screw; 632. Second bearing seat; 633. Handwheel; 6331. Insertion hole; 634. Handle; 710. Unwinding roller; 720. Rewinding roller; 730. Guide roller. Detailed Implementation

[0040] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustrative purposes only and are not intended to limit the scope of this application. Furthermore, it should be noted that, for ease of description, only the parts relevant to this application are shown in the accompanying drawings, not the entire structure. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without inventive effort are within the scope of protection of this application.

[0041] The terms “comprising” and “having”, and any variations thereof, used in this application are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or apparatus that includes a series of steps or units is not limited to the steps or units listed, but may optionally include steps or units not listed, or may optionally include other steps or units inherent to such process, method, product, or apparatus.

[0042] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0043] Please see Figures 1 to 3 As shown, the roller clamping device 1000, corresponding to a preferred embodiment of the present invention, is applied to the winding system 2000 for conveying the substrate 3000 (see winding system 2000). Figure 7 The device includes: a base frame 100; and a clamping mechanism 200 disposed on the base frame 100, which can be switched to a clamping state or a releasing state. The clamping mechanism 200 includes a first roller 210 and a second roller 220. When the clamping mechanism 200 is in the clamping state, the rotation axes of the first roller 210 and the second roller 220 are parallel to the TD direction of the substrate 3000. The first roller 210 and the second roller 220 cooperate to clamp the substrate 3000 and limit the substrate 3000 in the TD direction. When the clamping mechanism 200 is in the releasing state, the first roller 210 and the second roller 220 release the substrate 3000 and release the limitation in the TD direction.

[0044] This invention adds a roller clamping device 1000 to the winding system 2000. The roller clamping device 1000 includes a clamping mechanism 200 with a first roller 210 and a second roller 220. When the clamping mechanism 200 switches to the clamping state, the first roller 210 and the second roller 220 cooperate to clamp the substrate 3000 and limit the substrate 3000 in the TD direction. This ensures that when the substrate 3000 is heated and shrinks laterally in the TD direction, the clamping force applied by the first roller 210 and the second roller 220 can strongly counteract the shrinkage force of the substrate 3000, ensuring the substrate 3000 remains in place. The substrate 3000 is wound in a flat, wrinkle-free state in the winding system 2000, improving the yield rate. When the clamping mechanism 200 is in the released state, the first roller 210 and the second roller 220 can release the substrate 3000 to facilitate the disassembly and replacement of the substrate 3000. In addition, since the rotation axes of the first roller 210 and the second roller 220 are parallel to the TD direction when the clamping mechanism 2000 is in the clamping state, the substrate 3000 can be transported normally in the MD direction of the winding system 2000 without being obstructed by the clamping of the first roller 210 and the second roller 220.

[0045] Furthermore, the clamping mechanism 200 includes a first mounting block 230, a second mounting block 240, and a clamping drive member 250 disposed on the base frame 100. A first roller 210 is rotatably disposed on the first mounting block 230, and a second roller 220 is rotatably disposed on the second mounting block 240. The clamping drive member 250 is drively connected to the first mounting block 230 and / or the second mounting block 240 to put the clamping mechanism 200 into a clamping state or a released state.

[0046] In one embodiment, both the first mounting block 230 and the second mounting block 240 are movably connected to the base frame 100. Specifically, the movable connection can be a sliding connection or a rotating connection. The clamping drive 250 can be a dual-output type or a single-output type. When the clamping drive 250 is a dual-output type, each output end is connected to the first mounting block 230 and the second mounting block 240 respectively. When the clamping drive 250 is a single-output type, there are two clamping drive 250s, which are respectively connected to the first mounting block 230 and the second mounting block 240 for transmission. The first roller 210 and the second roller 220 are adapted to move separately under the drive of different clamping drive 250s, so that the clamping mechanism 200 is in a clamping state or a released state.

[0047] However, the above structure results in a very complex connection between the drive structure and the mounting block. In a preferred embodiment, only the first mounting block 230 is movably connected to the base frame 100, and the first roller 210 is rotatably mounted on the first mounting block 230. The second mounting block 240 is fixedly connected to the base frame 100, and the second roller 220 is rotatably mounted on the second mounting block 240, with its axis of rotation parallel to the TD direction. The clamping drive member 250 is adapted to drive the first mounting block 230 to a first position or a second position. When the first mounting block 230 is in the first position, the axis of rotation of the first roller 210 is parallel to the TD direction and cooperates with the second roller 220 to clamp the substrate 3000. When the first mounting block 230 switches to the second position, the first roller 210 releases the substrate 3000.

[0048] The first roller 210 and the second roller 220 are respectively disposed on both sides of the substrate 3000 in the thickness direction. When the first roller 210 is in the second position, the projections of the first roller 210 and the substrate 3000 in the thickness direction do not coincide, thus avoiding obstruction of the substrate 3000 by the first roller 210 during disassembly and replacement, and facilitating disassembly and assembly. Preferably, the first mounting block 230 is rotatably connected to the base frame 100, and the clamping drive 250 is a rotary motor with its rotation axis parallel to the MD direction, driving the first mounting block 230 to rotate. Compared with a translational connection, the clamping mechanism 200 is more compact overall, suitable for limited spaces, and allows for faster and more efficient position switching.

[0049] Furthermore, the base frame 100 includes a substrate 110, which is located on one side of the substrate 3000 in the TD direction. The substrate 110 has a first plate surface 111 perpendicular to the MD direction, a second plate surface 112, and a first side edge 113 opposite to the side of the substrate 3000 in the TD direction. A first mounting block 230 and a second mounting block 240 are disposed on the first plate surface 111 of the substrate 110, and a clamping drive member 250 is disposed on the second plate surface 112 of the substrate 110. Thus, after the base frame 100 is installed in the winding system 2000, the overall force is more balanced and the connection is more stable. The first mounting block 230 and the second mounting block 240 are arranged adjacent to the first side 113 of the substrate 110. When the first roller 210 and the second roller 220 are mounted on the mounting blocks and are in a clamping state, the first roller 210 and the second roller 220 protrude relative to the first side 113, so that their projection in the MD direction does not at least partially overlap with the projection of the substrate 110, ensuring that the side of the substrate 3000 can smoothly flow into the clamping area formed by the first roller 210 and the second roller 220 during the transportation of the substrate 3000.

[0050] Furthermore, combined Figure 5 As shown, in the TD direction, the first mounting block 230 has a connecting end 231 and a transmission end 232. The connecting end 231 is closer to the first side 113 than the transmission end 232, and a first shaft 211 arranged along the TD direction is fixed thereon. A first roller 210 is rotatably sleeved on the first shaft 211. A bearing can be provided between the first shaft 211 and the first roller 210 to improve rotational smoothness. A first bearing seat 120 is connected between the transmission end 232 and the first plate surface 111. A clearance hole is provided in the area of ​​the base plate 110 corresponding to the inner hole of the first bearing seat 120 along the MD direction. The output shaft of the clamping drive 250 passes through the clearance hole and the first bearing seat 120 and is connected to the transmission end 232.

[0051] Preferably, a bracket 130 is provided on the first plate surface 111, and a limiting structure 300 is provided on the bracket 130. When the first mounting block 230 moves to the first position or the second position, the limiting structure 300 is adapted to abut against the first mounting block 230 so that the first mounting block 230 can be accurately switched to the first position or the second position.

[0052] Specifically, the first mounting block 230 has a first abutting side 233 and a second abutting side 234 in a direction perpendicular to its rotation axis. The bracket 130 includes a first block portion 131 and a second block portion 132. The first mounting block 230 is rotatably limited between the first block portion 131 and the second block portion 132. That is, when the first mounting block 230 rotates to one of its extreme positions, the first abutting side 233 abuts against the first block portion 131; when the first mounting block 230 rotates to the other extreme position, the second abutting side 233 abuts against the second block portion 132.

[0053] The limiting structure 300 includes a first limiting member 310 disposed on the first block portion 131 and a second limiting member 320 disposed on the second block portion 132. The abutting end of the first limiting member 310 protrudes from the side of the first block portion 131 facing the first mounting block 230, and the abutting end of the second limiting member 320 protrudes from the side of the second block portion 132 facing the second mounting block 240. When the first mounting block 230 is in the first position, the abutting end of the first limiting member 310 is adapted to abut against the first abutting side 233. When the first mounting block 230 is in the second position, the abutting end of the second limiting member 320 is adapted to abut against the second abutting side 234.

[0054] Preferably, the first limiting member 310 and the second limiting member 320 are both threaded members that are threadedly connected to the bracket 130, so that the degree of protrusion of the abutment end relative to the bracket 130 can be adjusted by rotation, and the first position and the second position can be adjusted as needed to ensure that the clamping mechanism 200 is in the optimal clamping and releasing state.

[0055] In addition, a sensing structure 400 can be provided on the bracket 130. When the first mounting block 230 moves to the first position or the second position, the sensing structure 400 is adapted to sense whether the first mounting block 230 is in place, so as to transmit the signal to the winding system 2000 and realize the linkage between the two.

[0056] Specifically, the sensing structure 400 includes a first sensing element 410 disposed on the first block portion 131 and a second sensing element 420 disposed on the second block portion 132. When the first mounting block 230 moves to a first position, the first abutting side 233 gradually approaches the first sensing element 410 and reaches the sensing area of ​​the first sensing element 410 when it is in the first position. When the first mounting block 230 moves to a second position, the second abutting side 234 gradually approaches the second sensing element 420 and reaches the sensing area of ​​the second sensing element 420 when it is in the second position. The first sensing element 410 and the second sensing element 420 can specifically be proximity sensors, which are known structures and will not be described in detail here.

[0057] Preferably, the limiting structure 300 and / or the sensing structure 400 are arranged close to the transmission end 232 of the first mounting block 230, keeping them away from the first roller 210 and / or the second roller 220 to avoid mutual restriction during installation. The outer contour of the transmission end 232 of the first mounting block 230 is preferably arc-shaped, allowing the limiting structure 300 and / or the sensing structure 400 to be close to the transmission end 232, resulting in a more compact overall design, while also not limiting the rotation of the first mounting block 230.

[0058] Furthermore, the second mounting block 240 and the substrate 110 can be integrally formed or separately formed and then assembled together; this is not limited here. Figure 6 As shown, a second shaft 221 arranged along the TD direction is fixed on the second mounting block 240, and a second roller 220 is rotatably sleeved on the second shaft 221. A bearing can be provided between the second roller 220 and the second shaft 221 to improve the smoothness of rotation.

[0059] Preferably, an adjustment structure is provided between the second roller 220 and the second mounting block 240. The adjustment structure is adapted to adjust the second roller 220 along the thickness direction of the substrate 3000. That is, when the first roller 210 is in the first position, the clamping gap between the second roller 220 and the first roller 210 is adjustable, thereby adjusting the clamping force used to clamp the substrate 3000 to meet the clamping requirements of different substrates 3000.

[0060] Specifically, the second mounting block 240 has an adjustment hole 241 extending along the TD direction. The adjustment hole 241 is a strip-shaped hole with its length direction parallel to the thickness direction of the substrate 3000. The second shaft 221 passes through the adjustment hole 241 and can slide along its length direction. A rotatable adjustment bolt 510 is inserted inside the second mounting block 240. The axis of the adjustment bolt 510 is parallel to the thickness direction of the substrate 3000. The adjustment bolt 510 is connected to the second shaft 221 in a driving connection. In response to rotation, the adjustment bolt 510 drives the second shaft 221 to move axially along the adjustment bolt 510. The driving principle of the adjustment bolt 510 is similar to that of the lead screw structure and will not be described in detail here.

[0061] Preferably, the second shaft 221 is a threaded shaft with locking nuts 520 threadedly connected to it. Multiple locking nuts 520 can be present and located on both sides of the second mounting block 240 in the TD direction. By tightening the locking nuts 520, the second mounting block 240 is pressed against the locking nuts 520 on both sides, thus locking the second shaft 221 and restricting its movement in the length and through direction of the adjusting hole 241, improving the reliability of the second shaft 221 after position adjustment. Alternatively, a locking nut 520 can be provided only on the side of the second mounting block 240 facing away from the substrate 3000, and a shoulder can be provided on the second shaft 221. The side of the second mounting block 240 facing the substrate 3000 contacts the shoulder. By tightening the locking nuts 520, the second mounting block 240 is pressed against the shoulder and the locking nuts 520, thus locking the second shaft 221. Of course, in other embodiments, the adjusting bolt 510 can be omitted, and only the locking nut 520 is provided.

[0062] Furthermore, referring to Figure 1 and Figure 4As shown, the roller clamping device 1000 also includes an adjustment mechanism 600. The adjustment mechanism 600 includes a fixed base 610, a sliding base 620, and a transmission assembly 630. The fixed base 610 is fixed to the winding system 2000. The sliding base 620 is slidably disposed on the fixed base 610 along the TD direction. The transmission assembly 630 is disposed on the fixed base 610 and is drively connected to the sliding base 620. The base frame 100 is disposed on the sliding base 620. The transmission assembly 630 is adapted to drive the sliding base 620 to move along the TD direction, thereby driving the base frame 100 to adjust its position along the TD direction. By providing the adjustment mechanism 600, the position of the base frame 100 in the TD direction can be adjusted so that the clamping mechanism 200 can adapt to substrates 3000 of different widths.

[0063] Specifically, the substrate 110 has a second side 114 opposite to the first side 113. A portion of the substrate 110 near the second side 114 is fixed to the slide seat 620 by a threaded connection, so that the substrate 110 has a sufficient surface exposed outside the slide seat 620 to mount various components.

[0064] The fixed base 610 has a connecting surface 611 in the MD direction, and a guide rail 612 is provided on the connecting surface 611. The guide rail 612 extends along the TD direction, and the sliding base 620 is adapted to the guide rail 612 for sliding connection. The transmission assembly 630 includes a screw 631, a transmission nut (not shown), a second bearing seat 632, and a handwheel 633. The screw 631 is threadedly connected to the transmission nut and is arranged along the TD direction. The second bearing seat 632 is supported between the screw 631 and the fixed base 610, allowing the screw 631 to rotate relative to the fixed base 610. The transmission nut is fixedly connected to the sliding base 620, and the handwheel 633 is fixedly sleeved on the end of the screw 631 away from the base material 3000. By rotating the handwheel 633, the transmission nut can drive the sliding base 620 to slide along the guide rail 612. Since the transmission component 630 is used infrequently during normal production processes, there is no need to adopt an electric adjustment structure, which effectively reduces costs and space requirements.

[0065] Preferably, the guide rail 612 is a dovetail guide rail, and the sliding seat 620 has a dovetail groove 621 that slides with the guide rail 612. The connection between the guide rail 612 and the sliding seat 620 is more stable and provides better support.

[0066] In one embodiment, there are two guide rails 612, which are respectively disposed on both sides of the sliding seat 620 in the thickness direction of the substrate 3000, and there are two dovetail grooves 621, which correspond one-to-one with the guide rails 612. Preferably, in this embodiment, there is one guide rail 612, which is located in the middle of the sliding seat 620 in the thickness direction of the substrate 3000, and there is one dovetail groove 621, so as to simplify the sliding structure.

[0067] Preferably, the guide rail 612 has an inwardly recessed receiving groove 613 on the side opposite to the connecting surface 611. The receiving groove 613 extends along the TD direction, and the transmission component 630 is received in the receiving groove 613. The transmission nut is located below the sliding seat 620 and is connected to the bottom of the sliding seat 620. The receiving groove 613 can provide limited shielding for the output end of the transmission component 630 to protect the transmission component 630 and reduce safety hazards.

[0068] Preferably, the handwheel 633 has a circular outer contour, and its outer circumference is recessed inward to form a socket 6331. There are multiple sockets 6331, which are evenly spaced along the circumference of the handwheel 633. The transmission assembly 630 also includes a handle 634, which is adapted to be inserted into the socket 6331 to apply a rotational force to the handwheel 633.

[0069] By employing a separate handle 634 and handwheel 633, the handle 634 can be inserted into the handwheel 633 when force needs to be applied, facilitating the operator's application of force. When no external force needs to be applied to the handwheel 633, the handle 634 can be detached from the handwheel 633. This design ensures convenient force application to the handwheel 633 while effectively reducing its size and space occupation, avoiding obstruction of the mounting base 610. Furthermore, the reduced size of the handwheel 633 allows it to be housed in the receiving slot 613, reducing the risk of accidental operation. Simultaneously, the size of the receiving slot 613 can be reduced, resulting in a more compact overall design.

[0070] Furthermore, this utility model also provides a coating apparatus, including a roller clamping device 1000 and a winding system 2000. The winding system 2000 includes an unwinding roller 710, a take-up roller 720, and a plurality of guide rollers 730 located between the two. The number of roller clamping devices 1000 is at least one pair, and each roller clamping device 1000 in each pair is arranged opposite to each other along the TD direction to clamp the substrate 3000 on both sides of the TD direction.

[0071] Preferably, in this embodiment, there are two pairs of roller clamping devices 1000, one pair of which is located at the unwinding end of the substrate 3000, that is, it is arranged adjacent to the unwinding roller 710, and the other pair of which is located at the winding end of the substrate 3000, that is, it is arranged adjacent to the winding roller 720.

[0072] When the substrate 3000 is heated and laterally shrinks in the magnetron cavity, the roller clamping device 1000 can clamp the two sides of the unwinding end of the substrate 3000 in the TD direction and the two sides of the winding end in the TD direction. The first roller 210 and the second roller 220 can strongly counteract the shrinkage force of the substrate 3000 and firmly flatten the easily wrinkled edges. After being corrected in the TD direction by the roller clamping devices 1000 at both ends, the substrate 3000 is wound onto the winding roller 720 in a flat and wrinkle-free state to form a neat roll.

[0073] The above description is merely an embodiment of this application and does not limit the patent scope of this application. Any equivalent structural or procedural transformations made using the content of this application's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this application.

Claims

1. A roller clamping device, applied to a winding system (2000) for conveying a substrate (3000), characterized in that, include: Base frame (100); A clamping mechanism (200) is disposed on the base frame (100), which can be switched to a clamping state or a releasing state. The clamping mechanism (200) includes a first roller (210) and a second roller (220). When the clamping mechanism (200) is in the clamping state, the rotation axes of the first roller (210) and the second roller (220) are parallel to the TD direction of the substrate (3000). The first roller (210) and the second roller (220) cooperate to clamp the substrate (3000) and limit the substrate (3000) in the TD direction. When the clamping mechanism (200) is in the releasing state, the first roller (210) and the second roller (220) release the substrate (3000) and release the limitation in the TD direction.

2. The roller clamping device as described in claim 1, characterized in that, The clamping mechanism (200) includes: The first mounting block (230) is movably connected to the base frame (100), and the first roller (210) is rotatably disposed on the first mounting block (230); The second mounting block (240) is fixedly connected to the base frame (100), and the second roller (220) is rotatably disposed on the second mounting block (240), with the rotation axis of the second roller (220) parallel to the TD direction; A clamping drive unit (250) is disposed on the base frame (100) and is connected in a transmission manner to the first mounting block (230); The clamping drive (250) is adapted to drive the first mounting block (230) to move to a first position or a second position. When the first mounting block (230) is in the first position, the rotation axis of the first roller (210) is parallel to the TD direction and cooperates with the second roller (220) to clamp the substrate (3000). When the first mounting block (230) switches to the second position, the first roller (210) releases the substrate (3000).

3. The roller clamping device as described in claim 2, characterized in that, The first roller (210) and the second roller (220) are respectively disposed on both sides of the substrate (3000) in the thickness direction. In the thickness direction of the substrate (3000), the projections of the first roller (210) in the second position and the substrate (3000) do not overlap.

4. The roller clamping device as described in claim 2, characterized in that, The first mounting block (230) is rotatably connected to the base frame (100), the rotation axis of the first mounting block (230) is parallel to the TD direction, and the clamping drive (250) is adapted to drive the first mounting block (230) to rotate to a first position or a second position.

5. The roller clamping device as described in claim 2, characterized in that, The base frame (100) is provided with a limiting structure (300). When the first mounting block (230) moves to the first position or the second position, the limiting structure (300) is adapted to abut against the first mounting block (230).

6. The roller clamping device as described in claim 2, characterized in that, The base frame (100) is provided with a sensing structure (400). When the first mounting block (230) moves to the first position or the second position, the sensing structure (400) is adapted to sense the first mounting block (230).

7. The roller clamping device as described in claim 2, characterized in that, An adjustment structure is provided between the second roller (220) and the second mounting block (240), the adjustment structure being adapted to adjust the second roller (220) along the thickness direction of the substrate (3000).

8. The roller clamping device according to any one of claims 1 to 7, characterized in that, It also includes an adjustment mechanism (600), said adjustment mechanism (600) comprising: Fixture (610); A sliding seat (620) is slidably disposed on the fixed seat (610) along the TD direction; A transmission assembly (630) is disposed on the fixed base (610) and is connected in transmission to the sliding base (620); The base frame (100) is fixed to the sliding seat (620), and the transmission assembly (630) is adapted to drive the sliding seat (620) to adjust its position along the TD direction.

9. A coating apparatus, characterized in that, include: A winding system (2000) for conveying substrate (3000); The roller clamping device (1000) as described in any one of claims 1 to 8; The roller clamping device (1000) is located on the conveying path of the substrate (3000). The number of roller clamping devices (1000) is at least one pair, and each of the roller clamping devices (1000) in each pair is arranged opposite to each other along the TD direction to clamp the substrate (3000) on both sides of the TD direction respectively.

10. The coating equipment as described in claim 9, characterized in that, The number of roller clamping devices (1000) is two pairs, one pair of which is located at the unwinding end of the substrate (3000), and the other pair of which is located at the winding end of the substrate (3000).

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