A current collector base film slitting and rewinding device

Abstract

This invention relates to the field of current collector base film processing technology, specifically a current collector base film slitting and rewinding equipment, including a transmission mechanism and a film pressure slitting mechanism mounted on the transmission mechanism. When the base film is combed by two pressure rollers and pulled towards the auxiliary component, the ring cutter driven by the third track can rotate at high speed along the gap between the top support plate and the bottom support plate. At this time, the base film constrained by the bottom support plate and the top support plate can be subjected to low-pressure ring cutting by the two cutting discs on the ring cutter. At the same time, the film edge removal mechanism installed outside the two protective outer plates has a continuously driven grinding belt inside, which can efficiently grind and comb the three sub-film sides cut on the base film. At this time, the base film sub-films that are continuously pulled and delivered outward can avoid the deformation of polymer materials caused by the stress of the cutting discs of the ring cutter, and thus the protruding burrs on the sides of the base film can be combed and ground smooth.

Description

Technical Field

[0001] This invention relates to the field of current collector base film processing technology, specifically to a current collector base film slitting and rewinding equipment. Background Technology

[0002] Composite current collectors use PET or other raw material films as base films and undergo processes such as vacuum coating. Current collectors are key materials for the positive and negative electrodes in lithium battery cells. Conventional positive electrodes use aluminum foil and negative electrodes use copper foil. Composite current collectors adopt a "sandwich" structure, with a polymer material as the core layer, and copper and aluminum films are then deposited on the two outer layers. The base film of the current collector is mainly made of polymer materials.

[0003] Unlike other membrane slitting processes, during the cutting of current collector base membranes, the area to be cut deforms under pressure as the cutting blade applies pressure to the surface of the current collector base membrane. When the pressure applied by the cutting blade becomes unbalanced, raised burrs will appear on the cut edge of the current collector base membrane. As the pressure gradually increases, the side layer of the base membrane will break due to the increased deformation. Consequently, during the winding process, the cut base membrane will become rough, posing a safety hazard for subsequent use. If there are many raised burrs on the side of the cut base membrane, the membrane will tear from the raised burr area under pressure.

[0004] For the slitting and rewinding of current collector base films, the technical challenge that this invention aims to address is how to prevent the polymer material from deforming under continuously increasing stress when the current collector base film is affected by the unbalanced pressure of the cut end, which would lead to unstable pressure on the film edge and the generation of more protruding burrs. Summary of the Invention

[0005] The present invention aims to solve one of the technical problems existing in the prior art or related technologies.

[0006] Therefore, the technical solution adopted in this invention is as follows:

[0007] A current collector base film slitting and rewinding device includes a transmission mechanism, a film pressing and slitting mechanism mounted on the transmission mechanism, and a film edge removal mechanism mounted on the film pressing and slitting mechanism. The transmission mechanism includes two bases and a base, a clamping assembly mounted in the middle of the base, an auxiliary assembly mounted on the base, a support frame mounted in the middle of the two bases, two brackets fixed to the outer ends of the support frame with bolts, a tension spring connected to the base, and a base film transmitted outside the auxiliary assembly. The clamping assembly includes a beam rod movably mounted in the column head in the middle of the base and fixed with bolts. The beam has a clamping rod at the end away from the base and two pre-tightening end heads movably installed in the washers at both ends of the clamping rod. The assisting assembly includes three assisting end heads, a second shaft installed in the middle of one of the assisting end heads, a first shaft installed in the other two assisting end heads, three rotating rollers respectively installed outside the first and second shafts, a first track driven by two of the assisting end heads, and a gear fixedly installed outside the first shaft. The membrane pressing and slitting mechanism includes an anti-wrinkle assembly located outside the base and four pads fixed to the anti-wrinkle assembly by bolts. The anti-wrinkle assembly includes: an inclined plate fixed to the outside of two adjacent pads; two clamping columns connected within the anti-wrinkle component; a ring-cutting component movably installed within the two clamping columns; a second track connected to the outer end of the ring-cutting component; and a third track driven by the ring-cutting component. The anti-wrinkle component comprises: a bottom support plate fixed to the top of two supports; two protective outer plates fixed to both sides of the bottom support plate; an auxiliary pressure pad fixed between the protective outer plates; a top support plate installed between the two protective outer plates; two pressure rollers located within the semi-cylindrical housing at the outer ends of the bottom and top support plates; and a fixed installation... The protective outer plate has a clamp and a linkage shaft that is movably installed inside the clamp and located directly below the bottom support plate. The film edge removal mechanism includes a main frame and a secondary frame fixed outside the anti-wrinkle component, four end tubes fixed between the main frame and the secondary frame with bolts, three first rotating wheels and multiple third rotating wheels movably installed between the main frame and the secondary frame, a second rotating wheel movably installed inside the secondary frame, two sets of clamps located between the main frame and the secondary frame, a fourth track driven by the three first rotating wheels, and a grinding belt driven by the first rotating wheels and the third rotating wheels.

[0008] In a preferred embodiment, the present invention can be further configured such that: a chassis is fixedly installed at one end of the base, and a servo motor is installed inside the chassis, while a gear disk is installed at the outer end of the servo motor drive shaft.

[0009] By adopting the above technical solution, the servo motor is fixedly installed in the housing at one end of the base, and the gear disk on the transmission shaft of the servo motor meshes with the teeth on the outside of the gear. As the servo motor runs, its internal transmission shaft will drive the gear disk and gear to rotate. The first shaft and the second shaft installed at both ends of the base can drive the three rollers at the same speed and in combination, thereby ensuring that the sub-films after the base film is cut are stably guided.

[0010] In a preferred embodiment, the present invention may be further configured such that the roller is composed of an I-shaped stainless steel sleeve and a rubber gasket.

[0011] By adopting the above technical solution, by installing rubber gaskets on the outside of the I-shaped stainless steel sleeve, the sub-films after the base film is cut can be guided and delivered at high speed with the high speed of the three rollers, while avoiding wear on the polymer material. At this time, the sub-films of the cut base film are protected against slipping.

[0012] In a preferred embodiment, the present invention can be further configured such that: both the bottom support plate and the top support plate are equipped with rectangular end plates near the base film, and the rectangular end plates have symmetrically distributed vertical grooves inside.

[0013] By adopting the above technical solution, symmetrically distributed vertical grooves are opened inside the rectangular end plates of the bottom support plate and the top support plate. As the base film body is delivered outward along the space between the bottom support plate and the top support plate, the base film body and its cut sub-films can be stabilized. At the same time, the auxiliary pressure pads fixed between the two protective outer plates are used to perform auxiliary pressure edge pressing treatment on the cut sub-films.

[0014] In a preferred embodiment, the present invention can be further configured such that: the clamping column is composed of a T-shaped traction rod and a spring, and the bottom of the T-shaped traction rod is fitted with a ring buckle adapted to constrain the ring-cutting member rod body; the middle of the ring-cutting member is fitted with two annular cutting heads, and one end of the ring-cutting member is fitted with two auxiliary end heads.

[0015] By adopting the above technical solution, the top of the T-shaped traction rod is movably installed inside the vertical tube of the elliptical shell of the protective outer plate. With the top and bottom of the spring connecting to the inner wall of the vertical tube and the bottom of the ring buckle respectively, the T-shaped traction rod can provide support for the ring-cutting part. Under the elastic support of the two springs, the entire ring-cutting part can be lifted downwards. At this time, the base film passing through the two annular cut heads inside the ring-cutting part can achieve shock-absorbing cutting.

[0016] In a preferred embodiment, the present invention can be further configured such that: a triangular partition is installed on the inner side of both the main frame and the sub-frame, and an end tube clamping the second rotating wheel rod is installed in the middle of the bottom surface of the main frame.

[0017] By adopting the above technical solution, the three first rotating wheels and multiple third rotating wheels are positioned and clamped by the triangular partitions installed on the inner side of the main frame and the secondary frame, and the second rotating wheel is used to provide rotational kinetic energy for the combined first and third rotating wheels. With the high-speed rotation of the three grinding belts, the edges of the sub-films after the base film is cut can be fully ground and combed. At this time, the protruding burrs on the polymer material can be cleaned.

[0018] By adopting the above technical solution, the beneficial effects achieved by the present invention are as follows:

[0019] 1. This invention involves fixing two supports at the top of a support frame to provide support for the bottom support plate, fixing two symmetrically distributed protective outer plates on both sides of the bottom support plate, fixing an auxiliary pressure pad between the two protective outer plates, and fixing a horizontally placed top support plate between the two protective outer plates. The pads are then fixed to the semi-circular shells at the outer ends of the bottom and top support plates with bolts. When the base film is combed by two pressure rollers and pulled towards the auxiliary assembly, the ring-cutting component driven by the third track can move along the top and bottom support plates. The gap between the plates rotates at high speed. At this time, the base film, which is constrained by the bottom support plate and the top support plate, can be subjected to low-pressure ring cutting by the two cutting discs on the ring cutting piece. At the same time, the film edge removal mechanism installed on the outside of the two protective outer plates has a continuously driven grinding belt inside, which can efficiently grind and comb the three sub-film sides that are cut on the base film. At this time, the base film sub-film, which is continuously pulled and delivered outward, can avoid the deformation of polymer material caused by the stress of the cutting discs of the ring cutting piece, and thus the protruding burrs on the side of the base film can be combed and ground smooth.

[0020] 2. This invention uses an auxiliary pressure pad fixedly installed between two protective outer plates to guide and protect three grinding belts. The auxiliary pressure pads are symmetrically distributed horizontally with the inner horizontal plate of the top support plate. As the sub-films cut within the base film are delivered along the bottom of the auxiliary pressure pads towards the three rollers, the three sub-films, which are taut and pulled, can be safely guided after removing protruding burrs. The constant speed transmission component also prevents the base film body and the three cut sub-films from being under constant pressure, thus avoiding uneven stress on the sub-films after cutting, which could lead to skewing and wrinkling. At the same time, it does not cause any tearing risk to the subsequent winding of the film. Attached Figure Description

[0021] Figure 1 This is a schematic diagram illustrating the use of the present invention;

[0022] Figure 2 This is a bottom view diagram of the present invention;

[0023] Figure 3 This is a schematic diagram of the transmission mechanism of the present invention;

[0024] Figure 4 This is a schematic diagram showing the distribution of the clamping component and the assisting component of the present invention;

[0025] Figure 5 For the present invention Figure 4 Internal dispersion diagram;

[0026] Figure 6 This is a partial schematic diagram of the assistive component of the present invention;

[0027] Figure 7 This is a partial bottom view of the present invention;

[0028] Figure 8 This is a schematic diagram of the membrane pressure slitting mechanism of the present invention;

[0029] Figure 9 This is a schematic diagram illustrating the dispersion of the anti-wrinkle components of the present invention;

[0030] Figure 10 This is a schematic diagram of the dispersion of the membrane edge removal mechanism of the present invention;

[0031] Figure 11 This is an internal schematic diagram of the membrane edge removal mechanism of the present invention.

[0032] Figure label:

[0033] 100. Transmission mechanism; 110. Base; 120. Support frame; 130. Bracket; 140. Base; 150. Tension spring; 160. Pressing assembly; 161. Beam rod; 162. Clamping rod; 163. Pre-tightening end; 170. Auxiliary assembly; 171. First shaft; 172. Second shaft; 173. Rotation aid end; 174. Gear; 175. First track; 176. Rotating roller; 180. Base film;

[0034] 200. Membrane pressing and slitting mechanism; 210. Anti-wrinkle assembly; 211. Bottom support plate; 212. Top support plate; 213. Pressure roller; 214. Auxiliary pressure pad; 215. Protective outer plate; 216. Clamp; 217. Linkage shaft; 220. Pad plate; 230. Inclined plate; 240. Clamping column; 250. Ring cutter; 260. Second track; 270. Third track;

[0035] 300. Membrane edge removal mechanism; 310. Main frame; 320. Secondary frame; 330. End tube; 340. First rotating wheel; 350. Second rotating wheel; 360. Third rotating wheel; 370. Grinding belt; 380. Clamp; 390. Fourth track. Detailed Implementation

[0036] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be noted that, unless otherwise specified, the embodiments and features described herein can be combined with each other.

[0037] It should be understood that these descriptions are merely exemplary and are not intended to limit the scope of the invention.

[0038] The following describes, with reference to the accompanying drawings, some embodiments of a current collector base film slitting and rewinding device provided by the present invention. Example 1

[0039] Combination Figures 1-11 As shown, the present invention provides a current collector base film slitting and rewinding device, including a transmission mechanism 100, a film pressing and slitting mechanism 200 mounted on the transmission mechanism 100, and a film edge removal mechanism 300 mounted on the film pressing and slitting mechanism 200.

[0040] The transmission mechanism 100 includes a base 110, a support frame 120, a bracket 130, a base 140, a tension spring 150, a pressing assembly 160, an auxiliary assembly 170, and a base membrane 180. The auxiliary assembly 170 further includes a first shaft 171, a second shaft 172, an auxiliary rotation end 173, a gear 174, a first track 175, and a rotating roller 176. The membrane pressing and slitting mechanism 200 includes an anti-wrinkle assembly 210, a pad 220, an inclined plate 230, a clamping column 240, and a ring-cutting component 25. 0. The second track 260 and the third track 270, and the anti-wrinkle assembly 210 also includes a bottom support plate 211, a top support plate 212, a pressure roller 213, an auxiliary pressure pad 214, a protective outer plate 215, a clamp 216 and a linkage shaft 217. The film edge removal mechanism 300 includes a main frame 310, a secondary frame 320, an end tube 330, a first rotating wheel 340, a second rotating wheel 350, a third rotating wheel 360, a grinding belt 370, a clamp 380 and a fourth track 390.

[0041] Specifically, the clamping assembly 160 is installed in the middle of the base 140, the assisting assembly 170 is installed on the base 140, the support frame 120 is installed in the middle of the two bases 110, the two brackets 130 are fixed to the outer ends of the support frame 120 with bolts, the tension spring 150 is connected to the base 140, the base membrane 180 is driven outside the assisting assembly 170, the beam rod 161 is movably installed in the column head in the middle of the base 140, the clamping rod 162 is fixed to the end of the beam rod 161 away from the base 140 with bolts, the two pre-tightening ends 163 are movably installed in the washers at both ends of the clamping rod 162, and the second shaft 172 is installed therein. In the middle of one auxiliary rotating end 173, a first shaft 171 is installed inside two other auxiliary rotating end 173s. Three rotating rollers 176 are respectively installed outside the first shaft 171 and the second shaft 172. A first track 175 drives two of the auxiliary rotating end 173s. A gear 174 is fixedly installed outside the first shaft 171. An anti-wrinkle assembly 210 is located outside the base 140. Four pads 220 are fixed to the anti-wrinkle assembly 210 with bolts. An inclined plate 230 is fixed outside two adjacent pads 220. Two clamping posts 240 are connected inside the anti-wrinkle assembly 210. A ring cutter 250 is movably installed on the two clamping posts. Within 240, the second track 260 is driven and connected to the end of the outer ring cutter 250, and the third track 270 is driven on the ring cutter 250. The bottom support plate 211 is fixed to the top of the two supports 130, the two protective outer plates 215 are fixed to both sides of the bottom support plate 211, the auxiliary pressure pad 214 is fixed between the protective outer plates 215, the top support plate 212 is installed between the two protective outer plates 215, the two pressure rollers 213 are located in the semi-cylindrical shells at the outer ends of the bottom support plate 211 and the top support plate 212, the clamp 216 is fixedly installed on the outside of one of the protective outer plates 215, and the linkage is located directly below the bottom support plate 211. Shaft 217 is movably mounted inside clamp 216. Main frame 310 and secondary frame 320 are fixed to the outside of anti-wrinkle assembly 210. Four end tubes 330 are fixed between main frame 310 and secondary frame 320 with bolts. Three first rollers 340 and multiple third rollers 360 are movably mounted between main frame 310 and secondary frame 320. Second roller 350 is movably mounted inside secondary frame 320. Two sets of clamps 380 are located between main frame 310 and secondary frame 320. Fourth track 390 is driven by the three first rollers 340. Grinding belt 370 is driven by the outside of first rollers 340 and third rollers 360.

[0042] By symmetrically distributing the auxiliary pressure pads 214 and the inner horizontal plates of the top support plate 212 in a horizontal state, as the sub-films cut within the base film 180 are delivered along the bottom of the auxiliary pressure pads 214 towards the three rotating rollers 176, the three sub-films under tension are safely guided after removing protruding burrs. Furthermore, the constant-speed transmission assembly prevents the base film 180 body and the three cut sub-films from being under constant pressure, thus avoiding uneven stress on the sub-films after cutting, which could lead to skewing and wrinkling. When the base film 180 is combed by the two pressure rollers 213 and pulled towards the auxiliary assembly 170, the ring-cutting piece 250, driven by the third track 270, can move along the support plate 212. The gap between the top support plate 212 and the bottom support plate 211 rotates at high speed. At this time, the base film 180, which is constrained by the bottom support plate 211 and the top support plate 212, can be subjected to low-pressure ring cutting by the two cutting discs on the ring cutting member 250. At the same time, the film edge removal mechanism 300 installed outside the two protective outer plates 215 has a continuously driven grinding belt 370 inside, which can efficiently grind and comb the three sub-film sides that are cut on the base film 180. At this time, the base film 180 sub-film, which is continuously pulled and delivered outward, can avoid the deformation of polymer material caused by the stress of the cutting discs of the ring cutting member 250, and then the protruding burrs on the side of the base film can be combed and ground. Example 2

[0043] Combination Figures 3-8 As shown, based on Embodiment 1, a chassis is fixedly installed at one end of the base 140, and a servo motor is installed inside the chassis. A gear disk is installed at the outer end of the servo motor drive shaft. The rotating roller 176 is composed of an I-shaped stainless steel sleeve and a rubber gasket.

[0044] By fixing a servo motor inside a housing at one end of the base 140, and meshing the gear disk on the internal drive shaft of the servo motor with the teeth of the gear 174, the internal drive shaft of the servo motor drives the gear disk and gear 174 to rotate as the servo motor runs. At the same time, it also provides high-speed rotational kinetic energy for the ring cutter 250. As the three rollers 176 rotate at high speed, the sub-films after the base film 180 is cut can be guided and delivered while avoiding wear on the polymer material. The first shaft 171 and the second shaft 172, which are movably installed at both ends of the base 140, can drive the three rollers 176 at the same speed and in conjunction. At this time, the sub-films of the cut base film 180 are protected from slipping while ensuring that the sub-films can be separated and guided. Example 3

[0045] Combination Figures 3-9As shown, based on Embodiment 1, rectangular end plates are installed on the bottom support plate 211 and the top support plate 212 near the base film 180, and the rectangular end plates have symmetrically distributed vertical grooves inside. The clamping column 240 is composed of a T-shaped traction rod and a spring, and the bottom of the T-shaped traction rod is fitted with a ring buckle that is adapted to constrain the rod body of the ring cutter 250. Two annular cut heads are installed in the middle of the ring cutter 250, and two auxiliary end heads are installed at one end of the ring cutter 250.

[0046] By utilizing symmetrically distributed vertical grooves inside the rectangular end plates of the bottom support plate 211 and the top support plate 212, the base membrane 180 body and its slit sub-membranes can be stabilized as it is delivered outward along the space between the bottom support plate 211 and the top support plate 212. Simultaneously, auxiliary pressure pads 214 fixed between the two protective outer plates 215 provide auxiliary pressure and edge pressing for the slit sub-membranes. Furthermore, the top of the T-shaped traction rod is movably installed inside the vertical tube of the elliptical shell of the protective outer plate 215, working in conjunction with the spring top and bottom... Without connecting the inner wall of the vertical tube and the bottom of the ring buckle, the T-shaped traction rod can provide support for the ring cutting component 250. Under the elastic support of the two springs, the entire ring cutting component 250 can be lifted downwards. At this time, the base film 180 passing through the two annular cutting heads inside the ring cutting component 250 can be shock-absorbing and cut. When the base film 180 passes through the ring cutting component 250, it can avoid the problem of deformation of the polymer material due to external force, and it can also avoid the problem of excessive pressure on the film body due to excessive strength of the cutting component, which can cause cracking. Example 4

[0047] Combination Figures 3-11 As shown, based on Embodiment 1, triangular partitions are installed on the inner sides of both the main frame 310 and the secondary frame 320, and an end tube clamping the rod of the second rotating wheel 350 is installed in the middle of the bottom surface of the main frame 310.

[0048] The three first rotating rollers 340 and multiple third rotating rollers 360 are positioned and clamped by the triangular partitions installed on the inner side of the main frame 310 and the secondary frame 320 and the two sets of clamps 380. At the same time, the second rotating roller 350 provides rotational kinetic energy to the combined first rotating rollers 340 and third rotating rollers 360. With the high-speed rotation of the three grinding belts 370, the edges of the sub-film after the base film 180 is cut can be fully ground and combed. At this time, the protruding burrs on the polymer material can be cleaned, thereby avoiding the risk of tearing of the sub-film body caused by the protruding burrs during subsequent winding.

[0049] The working principle and usage process of this invention are as follows: First, the main frame 310 and secondary frame 320 are pre-installed on both ends of four end tubes 330 using multiple bolts. Then, three first rotating wheels 340 are movably installed on the triangular partitions at the top of the main frame 310 and secondary frame 320. Next, multiple third rotating wheels 360 are assembled with two clamps 380. A second rotating wheel 350 is movably installed inside a triangular partition at the bottom of the secondary frame 320, and the deflection gear at the outer end of the second rotating wheel 350 extends to the outside of the end tube at the bottom of the main frame 310. At this time, the three assembled first rotating wheels 340 are symmetrically distributed horizontally. Then, three grinding straps 370 are respectively inserted through the gap between the bottom support plate 211 and the auxiliary pressure pad 214. At this time, two protective outer plates 215 are respectively fixed at both ends of the bottom support plate 211 and the auxiliary pressure pad 214, while the top support plate 212 is fixed between the two protective outer plates 215. Both the auxiliary pressure pad 214 and the base plate 211 are located directly above the base plate 211. Simultaneously, bolts are used to fix two sets of pads 220 to the semi-circular shells outside the base plate 211 and the top plate 212, respectively. Two inclined plates 230 are installed outside the two pads 220. At this time, the two pressure rollers 213 are located inside the semi-circular shells outside the base plate 211 and the top plate 212, respectively. Meanwhile, the clamp 216 is fixedly installed outside a protective outer plate 215. The linkage shaft 217 is movably installed inside the clamp 216, and the linkage shaft 217 is located directly below the bottom support plate 211. The ring cutter 250 is movably installed inside the elliptical shell of the two protective outer plates 215. At this time, the two clamping columns 240 are spring-connected to the elliptical shell inside the two protective outer plates 215. The column head at the outer end of the ring cutter 250 is connected to a rotating end 173 on the first shaft 171 by the third track 270.

[0050] In use, when the motor inside the base 140 starts and drives the first shaft 171 to rotate, an auxiliary rotating end 173 mounted on the first shaft 171 drives the third track 270 and the ring cutter 250 to rotate at high speed. The second track 260 is driven by the ring cutter 250. At this time, the linkage shaft 217, which is movably clamped by the clamp 216, can drive the second rotating wheel 350 to rotate. The second rotating wheel 350 drives the assembled multiple third rotating wheels 360 and the three first rotating wheels 340 to rotate at the same speed. Because the inner cutting disc of the ring cutter 250 rotates and exerts a molding effect on the base film 180, the cut edge of the polymer base film 180 will deform or revert to its original state due to uneven force. To address the issue of burrs on the sides of the base film 180, as the base film 180 is delivered outward along the top of the bottom support plate 211 and the bottom of the top support plate 212, the cut edges and uncut outer sides of the base film 180, which are separated by the two cutting discs on the ring cutter 250, can be uniformly smoothed and combed by the three grinding belts 370. At this time, the three sub-films after the base film 180 is cut can be delivered outward by the three rotating rollers 176 with constant force. This process can greatly avoid the problem of excessive burrs caused by deformation due to the cutting pressure during the cutting of the base film 180, and at the same time ensure that the burrs of the sub-films after cutting are smoothed to prevent the base film from tearing due to external force during use after subsequent cutting.

[0051] Although embodiments of the invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A current collector-based film slitting and rewinding device, characterized in that, It includes a transmission mechanism (100), a membrane pressing and slitting mechanism (200) mounted on the transmission mechanism (100), and a membrane edge removal mechanism (300) mounted on the membrane pressing and slitting mechanism (200). The transmission mechanism (100) includes a base (140) and two bases (110), a clamping assembly (160) installed in the middle of the base (140), an auxiliary assembly (170) installed on the base (140), a support frame (120) installed in the middle of the two bases (110), two brackets (130) fixed to the outer end of the support frame (120) by bolts, and a base membrane (180) that is driven outside the auxiliary assembly (170). The membrane pressure slitting mechanism (200) includes an anti-wrinkle assembly (210) located outside the base (140), four pads (220) fixed to the anti-wrinkle assembly (210) by bolts, inclined plates (230) fixed to the outside of two adjacent pads (220), two clamping columns (240) connected inside the anti-wrinkle assembly (210), a ring cutter (250) movably installed inside the two clamping columns (240), a second track (260) driven to the outer end of the ring cutter (250), and a third track (270) driven to the ring cutter (250). The anti-wrinkle component (210) includes a bottom support plate (211) fixed to the top of two supports (130), two protective outer plates (215) fixed to both sides of the bottom support plate (211), an auxiliary pressure pad (214) fixed between the protective outer plates (215), a top support plate (212) installed between the two protective outer plates (215), two pressure rollers (213) located in the semi-cylindrical shells at the outer ends of the bottom support plate (211) and the top support plate (212), a clamp (216) fixedly installed outside one of the protective outer plates (215), and a linkage shaft (217) movably installed in the clamp (216) and located directly below the bottom support plate (211). The bottom support plate (211) and the top support plate (212) are both equipped with rectangular end plates near the base film (180), and the rectangular end plates have symmetrically distributed vertical grooves inside. The clamping post (240) is composed of a T-shaped traction rod and a spring, and the bottom of the T-shaped traction rod is fitted with a ring buckle that is adapted to constrain the rod body of the ring cutter (250); Two annular cutting heads are installed in the middle of the annular cutting member (250), and two auxiliary ends are installed at one end of the annular cutting member (250); The edge removal mechanism (300) includes a main frame (310) and a secondary frame (320) fixed outside the anti-wrinkle assembly (210), four end tubes (330) fixed between the main frame (310) and the secondary frame (320) by bolts, three first rollers (340) and multiple third rollers (360) movably installed between the main frame (310) and the secondary frame (320), a second roller (350) movably installed inside the secondary frame (320), two sets of clamps (380) located between the main frame (310) and the secondary frame (320), a fourth track (390) driven on the three first rollers (340), and a polishing belt (370) driven outside the first rollers (340) and the third rollers (360).

2. The current collector-based film slitting and rewinding equipment according to claim 1, characterized in that, The transmission mechanism (100) includes a tension spring (150) connected to the base (140).

3. The current collector-based film slitting and rewinding equipment according to claim 1, characterized in that, The clamping assembly (160) includes a beam (161) movably mounted in the middle column head of the base (140), a clamp (162) fixed by bolts to one end of the beam (161) away from the base (140), and two pre-tightening ends (163) movably mounted in the washers at both ends of the clamp (162).

4. The current collector-based film slitting and rewinding equipment according to claim 1, characterized in that, The assist assembly (170) includes three assist ends (173), a second shaft (172) installed in the middle of one of the assist ends (173), a first shaft (171) installed in the other two assist ends (173), three rollers (176) respectively installed outside the first shaft (171) and the second shaft (172), a first track (175) driven on two of the assist ends (173), and a gear (174) fixedly installed outside the first shaft (171).

5. The current collector-based film slitting and rewinding equipment according to claim 1, characterized in that, One end of the base (140) is fixedly mounted with a chassis, and a servo motor is installed inside the chassis, while a gear disk is installed on the outer end of the servo motor drive shaft.

6. The current collector-based film slitting and rewinding equipment according to claim 4, characterized in that, The roller (176) is composed of an I-shaped stainless steel sleeve and a rubber gasket.

7. The current collector-based film slitting and rewinding equipment according to claim 1, characterized in that, Triangular partitions are installed on the inner sides of both the main frame (310) and the sub-frame (320), and an end tube clamping the rod of the second rotating wheel (350) is installed in the middle of the bottom surface of the main frame (310).

Images