Edge cutting stabilizing device for ultrathin high-function film and film production line

Abstract

The invention relates to the technical field of thin film processing, and discloses an edge cutting stabilizing device for an ultrathin high-function film and a thin film production line, and the edge cutting stabilizing device comprises a driving roller set, four edge pressing roller sets, an enabling mechanism and a cutting mechanism. The driving roller set comprises two driving rollers, and the driving rollers pull the film to move. The blank pressing roller group comprises a driven roller; and the end parts of the driven roller and the driving roller are matched with each other so as to press the side edge of the film. The enabling mechanisms are used for driving the corresponding driven rollers to rotate, and the rotating direction of the driven rollers is kept consistent with the moving direction of the film. The cutting mechanism is arranged between the two driving rollers and used for cutting the side edge of the film between the two driving rollers. Compared with the mode that the driven roller in the static state makes contact with the film in the related technology, the film breaking defect caused by inertial impact of the driven roller on the film is avoided, a more stable film traction and conveying environment is provided for the cutting mechanism to cut the film, the film cutting quality can be improved, and the production cost can be reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of film processing, in particular to a cutting edge stabilizing device for ultra-thin high-function film and a film production line. BACKGROUND

[0002] In the stretching process of the film production line, the transverse opposite sides of the film are clamped by the chain clamps along the line. In the high-temperature environment required by the process, the film is stretched in the transverse direction or in the transverse and longitudinal directions to form a wide and ultra-thin film material, which is then cooled, cut, surface corona treated, and electrostatically removed by traction equipment, and finally wound into a large-diameter mother roll by a winding machine.

[0003] During the stretching of the film, the parts of the film clamped by the chain clamps along the line on the transverse opposite sides are not stretched, so the thickness of these parts is greater than that of other parts of the film. In order to improve the quality of the finished film, the thick edges of the film on the transverse opposite sides that have not been stretched need to be cut off by a film cutting device to obtain a mother roll product.

[0004] In related technologies, during the film cutting process of the film cutting device, the film is wound around the rollers of the traction machine according to the set path and then reaches the winding equipment. Four groups of driven rollers located on the sides of the two driving rollers are sequentially pressed against the roller body under the action of the pneumatic mechanism, dynamically clamping the edge part of the film at this position, so that the edge part of the film between the two driving rollers is in a stable conveying state, and then the cutting mechanism pushes the knife blade to cut off the edge part of the film in the longitudinal direction. However, when the thickness of the film is small, for example, when producing extremely flexible ultra-thin high-function films such as ultra-thin capacitor films and microporous lithium battery separators for special application occasions, the thickness of the film is, for example, 2 μm to 4 μm, or even less than 2 μm. During the cutting process, the film is prone to breakage and damage defects, thereby affecting the product quality and increasing the production cost. SUMMARY

[0005] Therefore, it is necessary to provide a cutting edge stabilizing device for ultra-thin high-function film and a film production line to effectively prevent the film from breaking and damaging during the film cutting process, improve the film cutting quality, and reduce the production cost.

[0006] In one aspect, the present application provides a cutting edge stabilizing device for ultra-thin high-function film, comprising:

[0007] a driving roller set, the driving roller set comprising two driving rollers arranged at intervals, the driving rollers being used to pull the film to move;

[0008] four edge pressing roller sets, each of the edge pressing roller sets being arranged at each end of the two driving rollers, the edge pressing roller set comprising a driven roller; the driven roller and the end of the driving roller cooperate with each other to press the side edge of the film;

[0009] An enabling mechanism, wherein the enabling mechanism drives the driven roller to rotate, and the rotation direction of the driven roller is consistent with the movement direction of the film; and

[0010] A cutting mechanism, located between the two active rollers, is used to cut the side edges of the film between the two active rollers.

[0011] In one embodiment, the pressing roller assembly further includes a mounting frame and a first push-pull mechanism; the driven roller is rotatably disposed on the mounting frame, and the first push-pull mechanism is connected to the mounting frame; the first push-pull mechanism can drive the mounting frame to move, so that the driven roller moves to a parking position or a working position; when the driven roller is located at the parking position, the driven roller is not in contact with the film, and the energizing mechanism is engaged with the driven roller and can drive the driven roller to rotate; when the driven roller leaves the parking position, the driven roller separates from the energizing mechanism; when the driven roller is located at the working position, the driven roller cooperates with the driving roller and presses the side of the film.

[0012] In one embodiment, the edge stabilization device for the ultrathin high-functionality film further includes a frame, the empowering mechanism is connected to the frame, and the first push-pull mechanism is connected to the frame.

[0013] In one embodiment, the enabling mechanism includes a first rotating mechanism and a drive wheel. The first rotating mechanism is connected to the drive wheel and is used to drive the drive wheel to rotate. The wheel surface of the drive wheel abuts against the roller surface of the driven roller and can drive the driven roller to rotate.

[0014] In one embodiment, the pressure roller assembly further includes a support member connected to the frame, a mounting bracket located on one side of the driven roller and rotatably connected to the first push-pull mechanism, and a mounting bracket located on the other opposite side of the driven roller and rotatably connected to the support member.

[0015] In one embodiment, the edge stabilization device for the ultrathin high-functionality film further includes an elastic buffer support, and the energizing mechanism is mounted on the elastic buffer support; the elastic buffer support is mounted on the frame.

[0016] In one embodiment, the elastic buffer support includes a fixed frame, an elastic element, and a movable frame; the fixed frame is connected to the frame, the movable frame is rotatably connected to the fixed frame, the elastic element is connected between the fixed frame and the movable frame, and the energizing mechanism is connected to the movable frame.

[0017] In one embodiment, the linear velocity of the driving roller is V1, and the linear velocity of the driven roller after being energized by the energizing mechanism is V2, where V2 / V1 = 1~1.3; and / or, four energizing mechanisms are provided, each energizing mechanism is correspondingly provided to each driven roller, and each energizing mechanism is used to drive the corresponding driven roller to rotate.

[0018] In one embodiment, the cutting mechanism includes a second push-pull mechanism, a second rotating mechanism, and a cutting disc; the second push-pull mechanism is connected to the second rotating mechanism, and the second rotating mechanism is connected to the cutting disc; the second rotating mechanism is used to drive the cutting disc to rotate; the second push-pull mechanism is used to drive the second rotating mechanism to move so that the cutting disc moves closer to or further away from the film.

[0019] On the other hand, this application also provides a thin film production line, which includes the edge stabilization device for the ultrathin high-performance film.

[0020] The aforementioned edge-stabilizing device and film production line for ultra-thin high-performance films, because the driven roller is equipped with an energizing mechanism, can drive the corresponding driven roller to rotate before it contacts the film. This causes the driven roller to change from a stationary state to a rotating state, and the rotation direction of the driven roller is consistent with the movement direction of the film. Then, the rotating driven roller is brought close to the film and cooperates with the driving roller to press the film. In this way, compared with the method of contacting the film with a stationary driven roller in related technologies, the film breakage defects caused by the inertial impact of the driven roller on the film are avoided. This provides a more stable film traction and conveying environment for the cutting mechanism to cut the film, improves the film cutting quality, and reduces production costs. Attached Figure Description

[0021] Figure 1 This is a structural diagram of the edge stabilization device for an ultrathin high-performance film according to an embodiment of this application during operation.

[0022] Figure 2 for Figure 1 Enlarged structural diagram at point A.

[0023] Figure 3 for Figure 1 Enlarged structural diagram at point B.

[0024] Figure 4 for Figure 1 The diagram shows the structure of the edge stabilization device for the ultrathin high-performance membrane in the docking position.

[0025] Figure 5 for Figure 1 The diagram shows the structure of the edge stabilization device for the ultrathin high-performance membrane in the working position.

[0026] Figure 6 for Figure 4 The diagram shows the structure of the edge-pressing roller assembly in the edge-stabilizing device for the ultra-thin high-performance film.

[0027] Figure 7 for Figure 6 Enlarged structural diagram at point C.

[0028] Explanation of reference numerals in the attached figures:

[0029] 10. Film; 11. Side; 12. Slit; 20. Drive roller assembly; 21. Active roller; 30. Edge pressing roller assembly; 31. Driven roller; 32. Mounting frame; 33. First push-pull mechanism; 34. Support component; 40. Energizing mechanism; 41. First rotating mechanism; 42. Drive wheel; 50. Cutting mechanism; 51. Second push-pull mechanism; 52. Second rotating mechanism; 53. Cutter disc; 54. Connecting frame; 60. Frame; 70. Elastic buffer support; 71. Fixed frame; 72. Elastic component; 73. Movable frame; 80. Adjustment mechanism. Detailed Implementation

[0030] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0031] As mentioned in the background art, the film cutting device in the related technology is prone to film breakage and damage defects during the film cutting process. This problem arises because, during the film cutting process, after the film passes through the rollers of the traction machine along a set path, the rotation of the traction machine's drive roller drives the film to move longitudinally. To clamp and pull the film, the driven roller, moved by, for example, a pneumatic mechanism, approaches the drive roller of the traction machine until the roller surface of the driven roller clamps and engages with the roller surface of the drive roller, rotating synchronously under the drive of the drive roller. The driven roller and the drive roller together clamp and pull the film to move longitudinally. In the step where the driven roller and the drive roller approach and clamp the film, the driven roller is stationary before contacting the drive roller, and switches from a stationary state to a high-speed rotating state upon contact. However, when the stationary driven roller comes into contact with the high-speed moving film, it is immediately driven to rotate. Its inertia causes a significant impact at the point of contact with the film, which can easily lead to tearing and breakage of some high-performance films with low toughness and ultra-thin thicknesses (only 2μm to 4μm). This prevents the cutting mechanism from performing side-cutting. Frequent tearing and breakage of the film inevitably affects the normal operation of the production line, generates a large amount of waste material, and ultimately leads to a significant increase in production costs.

[0032] Based on the above reasons, this application provides a cutting edge stabilization device and film production line for ultra-thin high-performance films, which can effectively prevent cracking and damage defects during the film cutting process, improve film cutting quality, and reduce production costs.

[0033] It should be noted that the thin film in this embodiment is, for example, an ultrathin high-performance film. Optionally, the ultrathin high-performance film includes, but is not limited to, ultrathin capacitor films, microporous lithium battery separators, etc. The thickness of the ultrathin high-performance film is, for example, 2μm to 4μm, or even less than 2μm, and can be adjusted and set according to actual needs, and is not limited here.

[0034] See Figures 1 to 5 This application provides an embodiment of an edge stabilization device for an ultrathin high-performance film.

[0035] For example, the edge stabilization device for ultrathin high-performance film includes a drive roller group 20, which includes two active rollers 21 spaced apart. When the roller surfaces of the two active rollers 21 contact the film surface of the film 10, they can guide and pull the film 10, so that the film 10 moves in the longitudinal direction.

[0036] Optionally, each of the two drive rollers 21 is driven by a corresponding motor, and the linear velocities of the two drive rollers 21 are the same or differ. Specifically, along the direction of movement of the film 10, the linear velocity of the upstream drive roller 21 is slightly greater than that of the downstream drive roller 21, and the ratio of their linear velocities is, for example, between 1 and 1.1. This allows the film 10 to be straightened and unfolded, which facilitates the cutting of the film 10 and helps to improve the cutting quality of the film 10.

[0037] Optionally, the length of the drive roller 21 is greater than the width of the film 10. When the film 10 is stretched in its transverse direction, both ends of the drive roller 21 protrude from the film 10 in the transverse direction, and the roller surface of the drive roller 21 contacts various parts of the film 10 in the transverse direction, so that the film 10 can be driven to move forward stably in the longitudinal direction.

[0038] Optionally, the drive roller 21 may be, for example, a steel core cylinder with a chrome-plated and polished surface.

[0039] Optionally, the two drive rollers 21 can be located on the same side of the film 10, or they can be positioned as follows: Figure 1 The two sides shown are located on opposite sides of the film 10. This is not limited here and can be flexibly adjusted and set according to actual needs.

[0040] Please see Figures 1 to 3 For example, the edge stabilization device for the ultra-thin high-performance film also includes four edge-pressing roller groups 30. Each edge-pressing roller group 30 is correspondingly located at each end of the two active rollers 21, that is, each active roller 21 has an edge-pressing roller group 30 at both opposite ends. The edge-pressing roller group 30 includes a driven roller 31. The driven roller 31 cooperates with the ends of the active rollers 21 to press the side edge 11 of the film 10. In this way, on the one hand, the two opposite ends of the active rollers 21 cooperate with the two driven rollers 31 arranged in the transverse direction of the film 10, which can straighten and flatten the film 10 in the transverse direction and prevent the film 10 from shifting in the transverse direction; on the other hand, there are two driven rollers 31 corresponding to any side of the film 10 in the transverse direction. The two driven rollers 31 are arranged back and forth in the direction of movement of the film 10 and cooperate with the two active rollers 21 respectively, thereby straightening and flattening the film 10 in the longitudinal direction. Furthermore, the film 10 between the two active rollers 21 is stretched and flattened in both the longitudinal and transverse directions, which ensures the cutting quality of the side edges 11 of the film 10.

[0041] Optionally, the driven roller 31 may include, but is not limited to, a rubber roller. When the surface of the rubber roller contacts the film 10, it can reduce the damage to the film 10. The driven roller 31 is arranged parallel to the driving roller 21. When the driven roller 31 and the driving roller 21 cooperate, they can effectively press the film 10, ensuring that the side 11 area of ​​the film 10 between the two driving rollers 21 runs smoothly and achieves effective edge trimming.

[0042] Optionally, the two driven rollers 31 located at opposite ends of the driving roller 21 are symmetrically arranged. Furthermore, the spacing between the two driven rollers 31 located at opposite ends of the driving roller 21 can be adjusted and set according to the width of the cut film 10. Specifically, the projection of the driven roller 31 along the thickness direction of the film 10 can cover the slit 12 of the film 10; that is, when viewed along the thickness direction of the film 10, the slit 12 of the film 10 is located between the two opposite end faces of the driven roller 31. This not only ensures the smooth forward movement of the film 10 but also guarantees the quality of the cut edge.

[0043] Please see Figures 4 to 7 For example, the edge stabilization device for the ultrathin high-performance film also includes an energizing mechanism 40. The energizing mechanism 40 is used to drive the driven roller 31 to rotate, and the rotation direction of the driven roller 31 is consistent with the movement direction of the film 10.

[0044] The number of energizing mechanisms includes, but is not limited to, one, two, three, or four, which can be set according to the number of driven rollers 31 that need to be energized. When there is one driven roller 31 that needs to be energized, there is one energizing mechanism; when there are two driven rollers 31 that need to be energized, there are two energizing mechanisms; and when there are four driven rollers 31 that need to be energized, there are four energizing mechanisms.

[0045] Specifically, there are four empowerment mechanisms, each empowerment mechanism 40 corresponding to each driven roller 31. Each empowerment mechanism 40 is used to drive the corresponding driven roller 31 to rotate, and the rotation direction of the driven roller 31 is consistent with the movement direction of the film 10.

[0046] During the stretching process, the two laterally opposite sides 11 of the film 10 are not stretched because they are held by grippers, resulting in a thickness of side 11 greater than that of other parts of the film 10. For example, the edge-stabilizing device for the ultrathin high-performance film also includes a cutting mechanism 50. The cutting mechanism 50 is located between two drive rollers 21, and the film 10 between the two drive rollers 21 is stretched and extended both longitudinally and laterally. The cutting mechanism 50 can cut the side sides 11 of the film 10 between the two drive rollers 21.

[0047] The film 10 includes two cutting mechanisms 50, located on opposite sides of the film 10 in the transverse direction. The two cutting mechanisms 50 are symmetrically arranged. In operation, the two cutting mechanisms 50 simultaneously cut the opposite sides 11 of the film 10, resulting in high cutting efficiency. Please refer to [further details omitted]. Figure 1Each of the two opposite sides of the film 10 in the transverse direction is cut with a slit 12 under the action of the corresponding cutting mechanism 50, so that the relatively thicker side 11 of the film 10 is cut off. The cut side 11 is then rolled up and recycled. The film 10 in the area between the two slits 12 has the required thickness and will be entered into the next process or rolled up as a finished product.

[0048] The aforementioned edge-stabilizing device for ultra-thin high-performance films, because the driven roller 31 is correspondingly equipped with an energizing mechanism 40, can drive the corresponding driven roller 31 to rotate before the driven roller 31 contacts the film 10. This causes the driven roller 31 to change from a stationary state to a rotating state, and the rotation direction of the driven roller 31 is consistent with the movement direction of the film 10. Then, the rotating driven roller 31 is brought close to the film 10 and cooperates with the driving roller 21 to press the film 10. In this way, compared with the method in related technologies where the driven roller 31 contacts the film 10 in a stationary state, the film breakage defects caused by the inertial impact of the driven roller 31 on the film 10 are avoided. This provides a more stable film traction and conveying environment for the cutting mechanism 50 to cut the film 10, which can improve the film cutting quality and reduce production costs.

[0049] Based on the aforementioned embodiments, the pressing roller assembly 30 further includes a mounting frame 32. The mounting frame 32 is used to mount and support the driven roller 31, and the driven roller 31 is rotatably connected to the mounting frame 32. Optionally, the mounting frame 32 is, for example, a frame, with the opposite ends of the driven roller 31 rotatably connected to the opposite sides of the frame. Furthermore, the roller surface of the driven roller 31 protrudes outside the frame, thereby enabling it to cooperate with the driving roller 21 to press the film 10, and to cooperate with the energizing mechanism 40 to be energized.

[0050] Please see Figures 4 to 7 For example, the pressure roller assembly 30 also includes a first push-pull mechanism 33. The first push-pull mechanism 33 is connected to the mounting frame 32. The first push-pull mechanism 33 can drive the mounting frame 32 to move, so that the driven roller 31 moves to the parking position or the working position. Optionally, the first push-pull mechanism 33 may include, but is not limited to, a cylinder, a hydraulic cylinder, or a screw mechanism, etc., and is not limited here, as long as it can drive the mounting frame 32 to reciprocate. In this embodiment, the first push-pull mechanism 33 is specifically, for example, a cylinder. The first push-pull mechanism 33 drives the mounting frame 32 to the working position, and the cylinder can provide air pressure to keep the driven roller 31 pressed against the film 10. The driven roller 31 and the driving roller 21 cooperate with each other to stably press the film 10.

[0051] When the driven roller 31 is in the parking position, it is not in contact with the film 10, and the edge trimming operation of the film 10 has not yet been carried out, i.e., it is before the edge trimming operation step of the film 10. In addition, before the driven roller 31 contacts the film 10, the empowering mechanism 40 is engaged with the driven roller 31 and can drive the driven roller 31 to rotate, thereby increasing the linear speed of the driven roller 31.

[0052] Optionally, when the driven roller 31 leaves the parking position, it will separate from the energizing mechanism 40, and the energizing mechanism 40 will no longer drive the driven roller 31 to rotate. The driven roller 31 will maintain its rotation state by inertia before contacting the film 10. Furthermore, under the action of the first push-pull mechanism 33, the driven roller 31 will move from the parking position to the working position, and the driven roller 31 with a certain linear velocity will cooperate with the driving roller 21 and press against the side 11 of the film 10.

[0053] Of course, in some alternative solutions, the empowering mechanism 40 can also be mounted on the mounting frame 32, for example. The empowering mechanism 40 is always connected to the driven roller 31. The empowering mechanism 40 has an empowering state and a resting state. When the empowering mechanism 40 is in the empowering state, it can drive the driven roller 31 to rotate and make the driven roller 31 reach the target speed. When the empowering mechanism 40 is in the resting state, the empowering mechanism 40 no longer drives the driven roller 31 to rotate. The driven roller 31 is in an automatic rotation state due to inertia and is in contact with the film 10 under the push and pull of the first push and pull mechanism 33. However, since the empowering mechanism 40 will increase the weight of the mounting frame 32 when mounted on the mounting frame 32, the sensitivity, smoothness and stability of the first push and pull mechanism 33 during push and pull operation will be reduced, and the film cutting quality will be affected to a certain extent.

[0054] Therefore, in one embodiment, the empowering mechanism 40 is not mounted on the mounting frame 32, but is set independently of the mounting frame 32. Furthermore, the driven roller 31 can be engaged with or separated from the empowering mechanism 40 under the pushing and pulling action of the first push-pull mechanism 33.

[0055] Based on the aforementioned embodiments, the edge-cutting stabilization device for ultra-thin high-performance films also includes a frame 60. The energizing mechanism 40 is connected to the frame 60, and the first push-pull mechanism 33 is also connected to the frame 60. Thus, the frame 60 provides support and load-bearing capacity for both the energizing mechanism 40 and the first push-pull mechanism 33. Furthermore, since the energizing mechanism 40 is not mounted on the mounting frame 32, the overall weight of the mounting frame 32 and the driven pressure roller is relatively small, making it easier to be pushed and pulled by the first push-pull mechanism 33, resulting in better stability and helping to ensure film-cutting quality.

[0056] It should be noted that the specific structural form of the frame 60 is varied, including but not limited to supporting beams, supporting crossbars, or the casing, etc., and is not limited here.

[0057] Optionally, the frame 60 can be a single unit, with the four pressing roller groups 30, four energizing mechanisms 40, and cutting mechanism 50 all mounted on the same frame 60. Alternatively, there can be two frames 60, each corresponding to one of the two drive rollers 21. The two pressing roller groups 30, two energizing mechanisms 40, and cutting mechanism 50 corresponding to one of the drive rollers 21 are mounted on one of the corresponding frames 60; the two pressing roller groups 30, two energizing mechanisms 40, and cutting mechanism 50 corresponding to the other drive roller 21 are mounted on the other corresponding frame 60.

[0058] For example, the power-enabling mechanism 40 includes a first rotating mechanism 41 and a drive wheel 42. The first rotating mechanism 41 includes, but is not limited to, a motor. The first rotating mechanism 41 is connected to the drive wheel 42 and is used to drive the drive wheel 42 to rotate. The wheel surface of the drive wheel 42 abuts against the roller surface of the driven roller 31, and the kinetic energy is transmitted by the frictional force of pressing against the surface of the driven roller 31 to achieve the rotation of the driven roller 31. Therefore, when the first push-pull mechanism 33 drives the mounting frame 32 to move, causing the driven roller 31 to move to the parking position, the roller surface of the driven roller 31 abuts against the wheel surface of the drive wheel 42, and the drive wheel 42 can correspondingly drive the driven roller 31 to rotate, thereby increasing the linear velocity of the driven roller 31 to the target value.

[0059] In one embodiment, the pressure roller assembly 30 further includes a support member 34. The support member 34 includes, but is not limited to, a support arm, support rod, or support frame. The support member 34 is connected to the frame 60. The "support member 34" can be "part of the frame 60," meaning it is integrally formed with other parts of the frame 60; or it can be a separate component that can be manufactured independently and then combined with other parts of the frame 60 to form a whole. Of course, as some optional solutions, the support member 34 can be omitted, and the frame 60 is directly rotatably connected to the mounting frame 32.

[0060] Please see Figure 6 and Figure 7 In this embodiment, to improve stability, the mounting bracket 32 ​​is located on one side of the driven roller 31 and is rotatably connected to the first push-pull mechanism 33, with the hinge position of the two as shown in the figure. Figure 6 As shown in Z1. The mounting bracket 32 ​​is located on the opposite side of the driven roller 31 and is rotatably connected to the support member 34. The hinge position of the two is as shown in the figure. Figure 6As shown in Z2. Thus, the opposite sides of the mounting frame 32 are supported by the first push-pull mechanism 33 and the support member 34 respectively, and the support stability is good; and, driven by the first push-pull mechanism 33, the mounting frame 32 can rotate stably, and when the mounting frame 32 rotates, it drives the driven roller 31 to move to the parking position or the working position.

[0061] With the hinge axis Z2 of the support arm and the mounting frame 32 as the central axis, the first push-pull mechanism 33 drives the mounting frame 32 to swing around the central axis with an swing amplitude of not less than 5° to 90°, so as to realize the flexible switching of the driven roller 31 between the parking position and the working position.

[0062] For example, the edge stabilization device for the ultrathin high-performance film also includes four elastic buffer supports 70. Each energizing mechanism 40 is correspondingly mounted on each elastic buffer support 70. Under the action of the first push-pull mechanism 33, when the driven roller 31 abuts against the corresponding energizing mechanism 40, the elastic buffer support 70 corresponding to the energizing mechanism 40 plays an elastic buffering role, which enables the energizing mechanism 40 to remain in contact with the driven roller 31. Specifically, it enables the wheel surface of the drive wheel 42 to remain in contact with the roller surface of the driven roller 31, thereby enabling the energized rotation of the driven roller 31.

[0063] For example, the elastic buffer bracket 70 is mounted on the frame 60, and the frame 60 provides load-bearing and support for the elastic buffer bracket 70.

[0064] Based on the aforementioned embodiments, the elastic buffer support 70 includes a fixed frame 71, an elastic element 72, and a movable frame 73. The fixed frame 71 is mounted on the frame 60. In this embodiment, the "fixed frame 71" can be "a part of the frame 60," that is, the "fixed frame 71" is integrally formed with "other parts of the frame 60"; or it can be a separate component that can be separated from "other parts of the frame 60," that is, the "fixed frame 71" can be manufactured independently and then combined with "other parts of the frame 60" to form a whole. The enabling mechanism 40 is mounted on the movable frame 73, and the movable frame 73 is rotatably connected to the fixed frame 71, with the hinge position of the two as shown in the figure. Figure 7 As shown in Z3. The elastic element 72 includes, but is not limited to, various elastic structures such as springs and elastic blocks. The elastic element 72 connects the fixed frame 71 and the movable frame 73, and acts as a buffer for the rotation of the movable frame 73. Thus, when the driven roller 31 moves from the working position to the parking position, under the action of the first push-pull mechanism 33, the roller surface of the driven roller 31 abuts against the wheel surface of the drive wheel 42 to maintain sufficient friction at the contact surface, and under the elastic buffer of the elastic element 72, excessive compression and deformation of the two can be avoided.

[0065] Optionally, the rotation range of the movable frame 73 relative to the fixed frame 71 is, for example, within 30°, or even within 15°, further within 10°, and even further controlled within 5°. In this way, under the action of the first push-pull mechanism 33, the rotation of the movable frame 73 relative to the fixed frame 71 is a small-amplitude swing, so that the fixed frame 71 provides stable support for the movable frame 73 and the energizing mechanism 40.

[0066] During operation, in order to straighten and flatten the film 10 between the two drive rollers 21, the linear velocities of the two drive rollers 21 are the same or differ by, for example, less than 10%. That is, the driven rollers 31 corresponding to different drive rollers 21...

[0067] The purpose of energizing the driven roller 31 in this application is to reduce impact-induced film breakage defects at the moment of contact between the driven roller 31 and the film 10. Furthermore, to improve the processing quality of the film 10, the linear velocities of the driven roller 31 and the driving roller 21, which are in contact with each other, need to be matched. In a preferred embodiment, when the driven roller 31 and the driving roller 21 are in contact, their linear velocities are the same. Of course, in other embodiments, when the driven roller 31 and the driving roller 21 are in contact, a deviation of up to 5%, or even up to 3%, in their linear velocities is permissible.

[0068] Considering that after the driven roller 31 separates from the energizing mechanism 40 and before it comes into contact with the driving roller 21, the driven roller 31 maintains its rotation due to its own inertia, and its linear velocity will decrease. Therefore, in this application, the linear velocity of the driving roller 21 is V1, and the linear velocity of the driven roller 31 after being energized by the energizing mechanism 40 is set to V2, where V2 > V1. For example, V2 / V1 = 1~1.3. Specifically, V2 / V1 can be, for example, 1.05, 1.1, 1.15, 1.2, or 1.3, etc., and can be flexibly adjusted and set according to actual needs, without limitation here. In this way, when the driven roller 31 and the driving roller 21 come into contact with each other, the linear velocities of the driven roller 31 after velocity decrease are the same as or deviate from those of the driving roller 21 by, for example, less than 5%, which has a small impact on the film 10, thereby improving the processing quality of the film 10.

[0069] For example, the cutting mechanism 50 includes a second push-pull mechanism 51, a second rotating mechanism 52, and a cutting disc 53. The second rotating mechanism 52 is connected to the cutting disc 53. The second rotating mechanism 52 may include, but is not limited to, a motor, which can drive the cutting disc 53 to rotate. The second push-pull mechanism 51 is connected to the second rotating mechanism 52. The second push-pull mechanism 51 may include, but is not limited to, a cylinder, a hydraulic cylinder, or a lead screw mechanism. The second push-pull mechanism 51 is used to drive the second rotating mechanism 52 to move, so that the cutting disc 53 moves closer to or away from the film 10. When the second push-pull mechanism 51 drives the second rotating mechanism 52 to move, so that the cutting disc 53 moves closer to the film 10, the high-speed rotating cutting disc 53 can cut the film 10. Furthermore, the film 10 moves longitudinally under the drive of the driving roller 21 and the driven roller 31. Combined with the two cutting mechanisms 50 arranged opposite each other on the transverse sides of the film 10, the two transversely opposite sides 11 of the film 10 can be cut off longitudinally.

[0070] For example, the cutting disc 53 includes a blade and two stacked clamping plates. The blade is connected between the two clamping plates, and at least a portion of the blade extends beyond the clamping plates. The clamping plates have, for example, a circular outline. A second rotating mechanism 52 is connected to the clamping plates to drive the clamping plates to rotate, thereby driving the blade to rotate synchronously. When the cutting edge of the blade extending beyond the clamping plates contacts the film 10, it can cut the film 10.

[0071] Optionally, the number of blades is not limited to one; for example, it can be set to two, three, four, or any other arbitrary number. Multiple blades are disposed between two clamping plates, and each blade extends outside the clamping plate and forms multiple cutting edges in the circumferential direction of the cutting disc 53.

[0072] Optionally, the blade may be detachably mounted between the two clamping plates. When the second rotating mechanism 52 stops operating, the blade can be disassembled and replaced as needed.

[0073] In some embodiments, the cutting mechanism 50 further includes a connecting frame 54. The connecting frame 54 is connected to the frame 60. A second push-pull mechanism 51 is mounted on the connecting frame 54. Specifically, the connecting frame 54 is adjustablely positioned on the frame 60 along the transverse direction of the film 10. Thus, the cutting mechanism 50 can adjust its position in the transverse direction, thereby correspondingly adjusting the position of the cutting disc 53 in the transverse direction, thereby adjusting the cutting position of the cutting mechanism 50 on the film 10, so that the width of the cut-off side 11 is adjusted accordingly, which can be adapted to the edge cutting operation of more types of film 10.

[0074] Based on the aforementioned embodiments, the edge-stabilizing device for the ultra-thin high-performance film further includes an adjustment mechanism 80. The adjustment mechanism 80 includes, but is not limited to, a lead screw motor, a pneumatic cylinder, or a hydraulic cylinder. The adjustment mechanism 80 is installed between the connecting frame 54 and the frame 60. The adjustment mechanism 80 can move and adjust the connecting frame 54 along the transverse direction of the film 10, thereby driving the cutting mechanism 50 to adjust its position along the transverse direction of the film 10, eliminating the need for manual adjustment and achieving a high degree of automation.

[0075] Another embodiment of this application also provides a thin film production line, which further includes an edge stabilization device for the ultrathin high-performance film of any of the above embodiments.

[0076] In the aforementioned film production line, the driven roller 31 is equipped with an energizing mechanism 40. Before the driven roller 31 contacts the film 10, the energizing mechanism 40 can drive the corresponding driven roller 31 to rotate, causing the driven roller 31 to change from a stationary state to a rotating state. The rotation direction of the driven roller 31 is consistent with the movement direction of the film 10. Then, the rotating driven roller 31 is brought close to the film 10 and cooperates with the driving roller 21 to press the film 10. In this way, compared with the method in related technologies where the driven roller 31 contacts the film 10 in a stationary state, the film breakage defects caused by the inertial impact of the driven roller 31 on the film 10 are avoided. This provides a more stable film traction and conveying environment for the cutting mechanism 50 to cut the film 10, which can improve the film cutting quality and reduce production costs.

[0077] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0078] Furthermore, where the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0079] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0080] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0081] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.

[0082] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0083] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A shaving edge stabilization device for an ultrathin high-performance film, characterized in that, include: A drive roller assembly, comprising two spaced-apart active rollers, the active rollers being used to traction the film movement; Four edge-pressing roller groups are provided, each of which is located at the end of one of the two driving rollers. Each edge-pressing roller group includes a driven roller. The ends of the driven rollers cooperate with the ends of the driving rollers to press the sides of the film. An enabling mechanism is provided, which drives the driven roller to rotate, and the rotation direction of the driven roller is consistent with the movement direction of the film. and A cutting mechanism, located between the two active rollers, is used to cut the side edges of the film between the two active rollers.

2. The edge stabilization device for ultrathin high-functionality films according to claim 1, characterized in that, The pressing roller assembly also includes a mounting frame and a first push-pull mechanism; the driven roller is rotatably mounted on the mounting frame, and the first push-pull mechanism is connected to the mounting frame; the first push-pull mechanism can drive the mounting frame to move, so that the driven roller moves to the parking position or the working position; when the driven roller is located at the parking position, the driven roller is not in contact with the film, and the energizing mechanism is engaged with the driven roller and can drive the driven roller to rotate; when the driven roller leaves the parking position, the driven roller separates from the energizing mechanism; when the driven roller is located at the working position, the driven roller cooperates with the driving roller and presses the side of the film.

3. The edge stabilization device for ultrathin high-functionality films according to claim 2, characterized in that, The edge stabilization device for the ultrathin high-performance film also includes a frame, the empowering mechanism is connected to the frame, and the first push-pull mechanism is connected to the frame.

4. The edge stabilizing device for an ultrathin high-functionality film according to any one of claims 1 to 3, characterized in that, The enabling mechanism includes a first rotating mechanism and a drive wheel. The first rotating mechanism is connected to the drive wheel and is used to drive the drive wheel to rotate. The wheel surface of the drive wheel abuts against the roller surface of the driven roller and can drive the driven roller to rotate.

5. The edge stabilization device for ultrathin high-functionality films according to claim 3, characterized in that, The pressing roller assembly also includes a support member connected to the frame. The mounting bracket is located on one side of the driven roller and is rotatably connected to the first push-pull mechanism. The mounting bracket is located on the other opposite side of the driven roller and is rotatably connected to the support member.

6. The edge stabilization device for ultrathin high-functionality films according to claim 3, characterized in that, The edge stabilization device for the ultrathin high-performance membrane also includes an elastic buffer support, and the energizing mechanism is mounted on the elastic buffer support; the elastic buffer support is mounted on the frame.

7. The edge stabilizing device for ultrathin high-functionality films according to claim 6, characterized in that, The elastic buffer support includes a fixed frame, an elastic element, and a movable frame; the fixed frame is connected to the frame, the movable frame is rotatably connected to the fixed frame, the elastic element is connected between the fixed frame and the movable frame, and the energizing mechanism is connected to the movable frame.

8. The edge stabilizing device for an ultrathin high-functionality film according to any one of claims 1 to 3, characterized in that, The linear velocity of the driving roller is V1, and the linear velocity of the driven roller after being energized by the energizing mechanism is V2, where V2 / V1 = 1~1.3; and / or, there are four energizing mechanisms, each energizing mechanism is correspondingly set to each driven roller, and each energizing mechanism is used to drive the corresponding driven roller to rotate.

9. The edge stabilizing device for an ultrathin high-functionality film according to any one of claims 1 to 3, characterized in that, The cutting mechanism includes a second push-pull mechanism, a second rotating mechanism, and a cutting disc; the second push-pull mechanism is connected to the second rotating mechanism, and the second rotating mechanism is connected to the cutting disc; the second rotating mechanism is used to drive the cutting disc to rotate; the second push-pull mechanism is used to drive the second rotating mechanism to move so that the cutting disc moves closer to or further away from the film.

10. A thin film production line, characterized in that, The thin film production line includes an edge stabilization device for ultrathin high-performance films as described in any one of claims 1 to 9.

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