Slitting mechanism and slitting system for battery diaphragm production

Abstract

The invention discloses a slitting mechanism and a slitting system for battery diaphragm production, and relates to the technical field of battery diaphragm slitting, the battery diaphragm slitting mechanism comprises a slitting rack, a feeding assembly and a cutting assembly are mounted on the slitting rack, and a rotatably connected material supporting roller is mounted on the feeding assembly; wherein the feeding assembly is used for driving a material supporting roller to rotate and linearly move in the first direction, and the cutting assembly is used for driving a cutting knife to rotate and linearly move in the first direction and the second direction; and the material supporting roller and the cutting knife are relatively close to or far away from each other, so that the mobile cutting of the battery diaphragm is realized. By controlling the relative movement of the material supporting roller and the cutting knife, the mobile cutting of the battery diaphragm is realized, the phenomenon of knife blocking is avoided, and the automation degree and the working efficiency of the equipment are improved. Therefore, the technical problem that when a traditional slitting mechanism is used for cutting the battery diaphragm, the cutter clamping phenomenon is likely to occur is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of battery separator slitting, and in particular to a slitting mechanism and a slitting system for battery separator production. Background Art

[0002] With the advancement of modern technology, batteries are increasingly used in various fields, particularly in portable electronic devices, electric vehicles, and energy storage systems. This has led to increasing demands for battery performance and safety. As a core component of batteries, the quality of battery separators directly impacts their performance and safety. These separators are typically made from polymer materials and possess excellent insulation, mechanical strength, and chemical stability. To meet the needs of different battery types, separators are typically cut during production to obtain the required size and shape.

[0003] In the prior art, traditional slitting mechanisms use a cutting unit to cut the battery separator on a support roller to achieve slitting of the battery separator. However, when slitting the battery separator, due to its generally high toughness, the battery separator stretches to both sides under the pressure of the blade, while trying to "wrap" the blade. The stretched material quickly rebounds after the blade passes through, tightly "clamping" or "hooping" the sides of the blade, thereby generating huge friction, hindering the rotation or advancement of the blade, causing it to get stuck. This easily causes the blade to get stuck, requiring the machine to be shut down for repair, and affecting the efficiency of slitting the battery separator. Summary of the Invention

[0004] The purpose of the present invention is to provide a slitting mechanism and a slitting system for battery separator production, which solves the technical problem that the knife is easily stuck when the traditional slitting mechanism cuts the battery separator.

[0005] To achieve this object, the present invention adopts the following technical solutions: According to a first aspect, the present invention provides a slitting mechanism for producing battery separators, comprising a slitting frame arranged in a frame structure, a feeding assembly and a cutting assembly mounted on the slitting frame, a rotatably connected supporting roller mounted on the feeding assembly, and a battery separator wound on the supporting roller; Among them, the feeding assembly is used to drive the supporting roller to rotate and move linearly along the first direction, and the cutting assembly is used to drive the cutting knife to rotate and move linearly along the first direction and the second direction; the first direction and the second direction are perpendicular to each other, and the supporting roller and the cutting knife are relatively close to or relatively far away from each other to achieve the mobile cutting of the battery diaphragm.

[0006] Optionally, the feeding assembly includes a feeding platform slidably connected to the slitting frame, a feeding rack is provided on one side of the feeding platform, a positioning cylinder is installed on the feeding rack, and a positioning column slidably connected to the feeding rack is installed on the telescopic rod of the positioning cylinder; Among them, one end of the material supporting roller is rotatably connected to the feeding platform, and the positioning column is used to rotationally position the other end of the material supporting roller; a feeding motor for driving the material supporting roller to rotate is installed on the feeding platform, and the feeding motor is also used to drive the feeding platform and the feeding rack to move linearly along the first direction.

[0007] Optionally, the feeding motor is provided with a feeding shaft, on which a feeding gear and a first rotating wheel are sequentially mounted; a feeding rack meshing with the feeding gear is fixedly mounted on the slitting frame; A second rotating wheel corresponding to the first rotating wheel is fixedly sleeved on the supporting roller, and a feeding belt is wound around the first rotating wheel and the second rotating wheel.

[0008] Optionally, a moving platform is slidably connected to the feeding platform, the feeding rack is fixedly mounted on the moving platform, and a driving cylinder for driving the moving platform to move linearly along the third direction is mounted on the feeding platform; A clamping column is fixedly connected to the movable platform, and the telescopic rod of the driving cylinder is fixedly connected to the clamping column; the first direction, the second direction and the third direction are perpendicular to each other.

[0009] Optionally, two first slide rails are fixedly installed on the slitting frame and are distributed in parallel and arranged along the first direction, and each of the first slide rails is slidably connected to at least one first slider fixedly connected to the feeding table; a second slide rail is installed on one side of the slitting frame and is arranged along the first direction, and the second slide rail is slidably connected to at least one second slider fixedly connected to the feeding table; Two third slide rails are fixedly connected to the feeding table and are distributed in parallel and arranged along the third direction. Each of the third slide rails is slidably connected to at least one third slider fixedly connected to the movable table. The height of the first slide rail in the third direction is greater than the height of the second slide rail in the third direction.

[0010] Optionally, the feeding platform includes a first feeding plate and a second feeding plate fixedly connected to each other, the first feeding plate is fixedly connected to the first slider, and the second feeding plate is fixedly mounted with a first feeding block and a second feeding block on one end away from the feeding frame, the first feeding block is provided with a first rotating groove, and the second feeding block is provided with a second rotating groove corresponding to the first rotating groove; The end of the supporting roller away from the feeding rack is rotatably connected to the first rotating groove and the second rotating groove, and the end of the second feeding plate close to the feeding rack is fixedly connected to the third feeding plate, and the third feeding plate is fixedly connected to the second slider.

[0011] Optionally, the driving cylinder is mounted on the third feeding plate, and the movable platform is mounted with two sliding rods that are parallel and slidably connected to the third feeding plate; The distance between the two third slide rails is greater than the distance between the two slide rods. The movable platform is provided with at least one movable hook for limiting overlap with the slitting machine frame. The movable hook and the movable platform are an integrally formed structure.

[0012] Optionally, the cutting assembly includes a first movable module, a second movable module, and a cutting motor for driving the cutting blade to rotate; The first movable module is connected to the second movable module and the cutting motor respectively. The first movable module is used to drive the cutting knife to move linearly along the first direction. The second movable module is installed on the slitting machine frame. The second movable module is used to drive the first movable module to move linearly along the second direction.

[0013] Optionally, the first movable module includes a first movable frame arranged along a first direction, a first movable base is slidably connected to the first movable frame, the cutting motor is mounted on the first movable base, and a first movable motor for driving the first movable base to move linearly along the first direction is mounted on an end of the first movable frame away from the cutting blade; The second movable module includes a second movable frame fixedly connected to the slitting machine frame and arranged along the second direction, the second movable frame is slidably connected to a second movable seat fixedly connected to the first movable frame, and one end of the second movable frame is equipped with a second movable motor for driving the second movable seat to move linearly along the second direction.

[0014] According to a second aspect, the present invention provides a slitting system for battery separator production, comprising the slitting mechanism for battery separator production as described in the first aspect.

[0015] Compared with the prior art, the present invention has the following beneficial effects: The present invention provides a slitting mechanism and slitting system for battery diaphragm production. Since both the feeding assembly and the cutting assembly can move linearly along a first direction, and the cutting assembly can also move linearly along a second direction, the cutting knife can be accurately positioned at the target cutting position, thereby improving the accuracy of the slitting position. By controlling the relative movement of the supporting roller and the cutting knife, the mobile slitting of the battery diaphragm is achieved, the occurrence of the knife jamming phenomenon is avoided, and the degree of automation and work efficiency of the equipment are improved. Since the cutting action can be controlled by the relative proximity or distance between the supporting roller and the cutting knife, the slitting process is more stable, the pulling or deformation of the battery diaphragm is avoided, and the slitting quality is guaranteed. The feeding assembly and the cutting assembly are supported by the slitting frame, and a modular structural design is achieved, making the overall equipment structure compact, occupying a small space, and easy to install and maintain. Therefore, the present invention solves the technical problem that the knife jamming phenomenon is easy to occur when the traditional slitting mechanism cuts the battery diaphragm. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0017] The structures, proportions, sizes, etc. depicted in the drawings of this specification are only used to match the contents disclosed in the specification so as to facilitate understanding and reading by persons familiar with this technology. They are not intended to limit the conditions under which the present invention can be implemented and therefore have no substantive technical significance. Any structural modifications, changes in proportional relationships, or adjustments in size should still fall within the scope of the technical contents disclosed in the present invention without affecting the effects and objectives that can be achieved by the present invention.

[0018] Figure 1 This is a schematic diagram of a three-dimensional structure of a slitting mechanism for producing battery separators provided in the first embodiment of the present invention; Figure 2 This is a second schematic diagram of the three-dimensional structure of a slitting mechanism for producing battery separators provided in the first embodiment of the present invention; Figure 3 A schematic top view of a slitting mechanism for producing battery separators provided in Example 1 of the present invention; Figure 4 A schematic side view of a slitting mechanism for producing battery separators provided in Example 1 of the present invention; Figure 5 A schematic diagram of the three-dimensional structure of a cutting assembly in a slitting mechanism for producing battery separators provided in the first embodiment of the present invention; Figure 6This is a front view of a feeding assembly in a slitting mechanism for producing battery separators provided in Example 1 of the present invention; Figure 7 A schematic diagram of the partial structure of a feeding assembly in a slitting mechanism for producing battery separators provided in the first embodiment of the present invention; Figure 8 This is a schematic diagram of the three-dimensional structure of a feeding table in a slitting mechanism for producing battery separators provided in Example 1 of the present invention.

[0019] Illustration: 10. Slitting rack; 20. Feeding assembly; 21. Feeding platform; 211. First feeding plate; 212. Second feeding plate; 213. First feeding block; 2131. First rotating trough; 214. Second feeding block; 2141. Second rotating trough; 215. Third feeding plate; 22. Feeding rack; 23. Positioning cylinder; 231. Positioning column; 24. Feeding motor; 241. Feeding shaft; 251. Feeding gear; 252. First rotating wheel; 253. Feeding rack; 254. Second rotating wheel; 26. Feeding belt; 27. Moving platform; 271. Clamping column; 272. Moving hook; 28. Driving cylinder; 291. First slide rail; 292. First slider; 293. Second slide rail; 294. Second slider; 295. Third slide rail; 296. Third slider; 297. Sliding rod; 30. Cutting assembly; 31. Cutting blade; 32. First movable module; 321. First movable frame; 322. First movable seat; 323. First movable motor; 33. Second movable module; 331. Second movable frame; 332. Second movable seat; 333. Second movable motor; 34. Cutting motor; 40. Support roller. DETAILED DESCRIPTION

[0020] In order to make the purpose, features, and advantages of the present invention more obvious and easy to understand, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the embodiments described below are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0021] In the description of the present invention, it should be understood that the terms "upper," "lower," "top," "bottom," "inner," "outer," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of the present invention and simplify the description. They are not intended to indicate or imply that the devices or elements referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. It should be noted that when a component is considered to be "connected" to another component, it may be directly connected to the other component or there may be a centrally located component.

[0022] The technical solution of the present invention will be further described below with reference to the accompanying drawings and through specific implementation methods.

[0023] Example 1: The embodiment of the present invention provides a slitting mechanism for producing battery separators, such as Figures 1 to 8 As shown, it includes a slitting frame 10 arranged in a frame structure, a feeding assembly 20 and a cutting assembly 30 are installed on the slitting frame 10, a rotatably connected supporting roller 40 is installed on the feeding assembly 20, and a battery separator is wound on the supporting roller 40; The feed assembly 20 is used to drive the support roller 40 to rotate and move linearly along a first direction, and the cutting assembly 30 is used to drive the cutting blade 31 to rotate and move linearly along a first direction and a second direction. The first direction and the second direction are perpendicular to each other. The support roller 40 and the cutting blade 31 are moved closer or farther apart to achieve mobile slitting of the battery separator. In this embodiment, mobile slitting of the battery separator is to cut a long battery separator roll into battery separator rolls of predetermined lengths to meet the needs of subsequent battery separator production and processing steps.

[0024] It should be noted that the present invention provides a slitting mechanism for battery diaphragm production. Since both the feeding assembly 20 and the cutting assembly 30 can move linearly along the first direction, and the cutting assembly 30 can also move linearly along the second direction, the cutting knife 31 can be accurately positioned at the target cutting position, thereby improving the accuracy of the slitting position. By controlling the relative movement of the supporting roller 40 and the cutting knife 31, the mobile slitting of the battery diaphragm is achieved, the occurrence of the knife jamming phenomenon is avoided, and the degree of automation and work efficiency of the equipment are improved. Since the cutting action can be controlled by the relative proximity or distance between the supporting roller 40 and the cutting knife 31, the slitting process is more stable, the pulling or deformation of the battery diaphragm is avoided, and the slitting quality is guaranteed. The feeding assembly 20 and the cutting assembly 30 are supported by the slitting frame 10, and a modular structural design is realized, making the overall equipment structure compact, occupying a small space, and easy to install and maintain. Therefore, the present invention solves the technical problem that the knife jamming phenomenon is easy to occur when the traditional slitting mechanism cuts the battery diaphragm.

[0025] like Figures 1 to 7 As shown, the feeding assembly 20 includes a feeding platform 21 slidably connected to the slitting frame 10, a feeding rack 22 is provided on one side of the feeding platform 21, a positioning cylinder 23 is installed on the feeding rack 22, and a positioning column 231 slidably connected to the feeding rack 22 is installed on the telescopic rod of the positioning cylinder 23; Among them, one end of the supporting roller 40 is rotatably connected to the feeding table 21, and the positioning column 231 is used to rotationally position the other end of the supporting roller 40; a feeding motor 24 is installed on the feeding table 21 for driving the supporting roller 40 to rotate, and the feeding motor 24 is also used to drive the feeding table 21 and the feeding rack 22 to move linearly along the first direction.

[0026] It should be noted that the other end of the support roller 40 is rotationally positioned by the positioning column 231, and one end of the support roller 40 is rotatably connected to the feed table 21, so that the support roller 40 can be quickly loaded and unloaded and reliably positioned. Through the driving action of the feeding motor 24, not only can the support roller 40 be driven to rotate, but the feed table 21 and the feed rack 22 can also be driven to move linearly along the first direction at the same time, so that the battery diaphragm can be fed step by step or continuously, which is conducive to coordinating the feeding speed and cutting rhythm, and improving the slitting efficiency of the slitting mechanism. Two types of drives are realized by the feeding motor 24, which reduces the number of motors, making the structure of the slitting mechanism more compact, the control more centralized and the cost lower.

[0027] like Figures 1 to 7 As shown, the feed motor 24 is provided with a feed shaft 241, and a feed gear 251 and a first rotating wheel 252 are sequentially mounted on the feed shaft 241; a feed rack 253 meshing with the feed gear 251 is fixedly mounted on the slitting frame 10; in this embodiment, the number of the feed gears 251 and the feed rack 253 is set to two, and the two feed racks 253 are distributed on both sides of the feed motor 24, and the two feed gears 251 are mounted on both ends of the feed shaft 241; A second rotating wheel 254 corresponding to the first rotating wheel 252 is fixedly sleeved on the supporting roller 40 , and a feeding belt 26 is wound around the first rotating wheel 252 and the second rotating wheel 254 .

[0028] It should be noted that the feed motor 24 drives the feed shaft 241 to rotate, causing the feed shaft 241 to simultaneously drive the feed gear 251 and the first rotating wheel 252 to rotate. Since the feed gear 251 is engaged with the feed rack 253, the feed table 21 moves linearly along the first direction. Since the first rotating wheel 252 and the second rotating wheel 254 are connected by the feed belt 26, and the second rotating wheel 254 is fixedly mounted on the support roller 40, the feed belt 26 drives the support roller 40 to rotate, thereby achieving both rotational movement and linear movement of the support roller 40. By allowing the support roller 40 to be relatively close to or relatively far from the cutting blade 31, the slitting mechanism can support continuous feeding mode (suitable for cutting long materials) or step feeding (suitable for fixed-length slitting), with flexible functions to meet diverse process requirements.

[0029] It should also be noted that the advancement of the feed table 21 and the rotation of the support roller 40 can be strictly synchronized to ensure that the battery diaphragm is fed into the cutting area at an appropriate speed and tension. The synchronization of the mechanical structure can reduce the dependence on the electronic synchronization control algorithm and reduce the complexity of the control system.

[0030] like Figures 6 to 8 As shown, a moving platform 27 is slidably connected to the feeding platform 21, and the feeding frame 22 is fixedly mounted on the moving platform 27. A driving cylinder 28 is mounted on the feeding platform 21 for driving the moving platform 27 to move linearly along the third direction; A clamping column 271 is fixedly connected to the movable platform 27 , and the telescopic rod of the driving cylinder 28 is fixedly connected to the clamping column 271 ; the first direction, the second direction and the third direction are perpendicular to each other.

[0031] It should be noted that the movable table 27 is driven to move along the third direction by the driving cylinder 28. Since the feeding rack 22 is fixedly mounted on the movable table 27, the movable table 27 drives the positioning cylinder 23 to move to the corresponding clamping position. The positioning cylinder 23 drives the positioning column 231 to perform telescopic movement, so that the positioning column 231 rotates and positions the supporting roller 40, making it easier to disassemble and assemble the supporting roller 40. For supporting rollers 40 with diameter changes or center height differences, the height adjustment in the third direction can achieve balanced leveling of the battery diaphragm, so that it can maintain smooth transportation during the slitting process, solving the technical problem of uneven axis of the supporting roller 40; avoiding material tilt, offset or abnormal tension caused by height mismatch, thereby improving the cutting accuracy and material utilization rate of the battery diaphragm slitting mechanism.

[0032] like Figures 2 to 7As shown, two first slide rails 291 are fixedly installed on the slitting frame 10 and are distributed in parallel and arranged along the first direction. Each first slide rail 291 is slidably connected to at least one first slider 292 fixedly connected to the feeding table 21; a second slide rail 293 is installed on one side of the slitting frame 10 and is arranged along the first direction. At least one second slider 294 fixedly connected to the feeding table 21 is slidably connected to the second slide rail 293. Two third slide rails 295 are fixedly connected to the feeding table 21, which are distributed in parallel and arranged along the third direction. Each third slide rail 295 is slidably connected to at least one third slider 296 fixedly connected to the movable table 27; the height of the first slide rail 291 in the third direction is greater than the height of the second slide rail 293 in the third direction.

[0033] It should be noted that, through the use and coordination of the first slide rail 291, the second slide rail 293, the first slider 292, and the second slider 294, and the fixed connection of the feeding platform 21 to the first slider 292 and the second slider 294, a rigid support is formed. During the movement of the feeding platform 21 along the first direction, shaking or swaying is effectively prevented, the feeding accuracy is improved, and the technical problem of shaking when the feeding platform 21 moves along the first direction is solved. The combination of the two first slide rails 291 and the single-sided second slide rail 293 forms a multi-point support structure, which makes the feeding platform 21 have stronger resistance to off-center load and torsion when subjected to uneven load or cutting force; it is particularly suitable for working conditions where battery diaphragms are unevenly distributed or tension fluctuations occur during feeding, ensuring smooth operation.

[0034] It should also be noted that since the height of the first slide rail 291 in the third direction is greater than the height of the second slide rail 293 in the third direction, the feeding table 21 fits the slide rail more closely in a natural state, thereby improving the self-locking and anti-shake properties during movement; it is beneficial to control the center of gravity, preventing the feeding table 21 from tilting or derailing due to material overloading, and solving the technical problem of the higher center of gravity of the feeding component 20.

[0035] like Figures 3 to 8 As shown, the feeding platform 21 includes a first feeding plate 211 and a second feeding plate 212 fixedly connected to each other. The first feeding plate 211 is fixedly connected to the first slider 292. The second feeding plate 212 is fixedly mounted with a first feeding block 213 and a second feeding block 214 on one end away from the feeding frame 22. The first feeding block 213 is provided with a first rotating groove 2131, and the second feeding block 214 is provided with a second rotating groove 2141 corresponding to the first rotating groove 2131. The end of the supporting roller 40 away from the feed rack 22 is rotatably connected to the first rotating groove 2131 and the second rotating groove 2141 , and the end of the second feed plate 212 close to the feed rack 22 is fixedly connected to the third feed plate 215 , and the third feed plate 215 is fixedly connected to the second slider 294 .

[0036] It should be noted that the feed table 21 includes a first feed plate 211, a second feed plate 212, and a third feed plate 215. Through the multi-plate combination structure, the feed table 21 can achieve multi-point support and multi-directional connection, thereby improving the overall rigidity and guiding stability. At the same time, it has good modular assembly characteristics, which is convenient for later maintenance and partial replacement. A first feed block 213 and a second feed block 214 are installed at the end of the second feed plate 212 away from the feed rack 22. The first rotating groove 2131 and the second rotating groove 2141 are provided therein, which together constitute the rotating fulcrum structure of one end of the supporting roller 40. One end of the supporting roller 40 is inserted into the first rotating groove 2131 and the second rotating groove 2141 to realize passive rotation support. It has a simple structure, is easy to clamp, and has high positioning accuracy. It is particularly suitable for automatic loading or frequent replacement of battery diaphragms. The first feed plate 211, the second feed plate 212 and the third feed plate 215 are connected together to form a rigid frame structure, and are connected to the first slider 292 and the second slider 294, so that the feed table 21 has good torsional rigidity and seismic resistance; especially under high-speed feeding or heavy-loaded battery diaphragms, it can ensure the stability of the feed table 21 and the close fit between the slide rails.

[0037] like Figures 6 to 8 As shown, the driving cylinder 28 is installed on the third feeding plate 215, and the moving platform 27 is equipped with two parallel sliding rods 297 that are slidably connected to the third feeding plate 215; The distance between the two third slide rails 295 is greater than the distance between the two slide bars 297. The movable platform 27 is provided with at least one movable hook 272 for limiting overlap with the slitting frame 10. The movable hook 272 and the movable platform 27 are an integrally formed structure.

[0038] It should be noted that one end of the supporting roller 40 is rotatably connected to the first rotating groove 2131 and the second rotating groove 2141, and the positioning cylinder 23 drives the positioning column 231 to extend, so that the positioning column 231 abuts against the other end of the supporting roller 40, thereby rotating and positioning the supporting roller 40; then the feeding motor 24 drives the supporting roller 40 to rotate and move linearly along the first direction at the same time, and drives the cutting knife 31 to rotate through the cutting assembly 30, and move linearly along the first and second directions, thereby making the supporting roller 40 relatively close to or away from the cutting knife 31, realizing the mobile cutting of the battery diaphragm, and solving the technical problem that the traditional cutting mechanism is prone to knife jamming when cutting the battery diaphragm. Since the driving cylinder 28 is installed on the third feeding plate 215, its function is to control the movement of the movable platform 27 along the third direction through the telescopic movement of the cylinder, thereby achieving height adjustment of the feeding frame 22 and the positioning cylinder 23 during the feeding process, so that the positioning column 231 drives the supporting roller 40 to move up and down near one end of the positioning cylinder 23, thereby ensuring that the axis of the supporting roller 40 remains horizontal during the slitting of the battery diaphragm. This structure not only solves the technical problem of the rotational positioning of the supporting roller 40, but also solves the technical problem of the uneven axis of the supporting roller 40 during the slitting process. Through the use and coordination of the third slide rail 295, the third slider 296 and the slide rod 297, the movable platform 27 can move smoothly along the third direction, achieving stable slitting of the battery diaphragm.

[0039] Because the spacing between the two third slide rails 295 is greater than the spacing between the two slide bars 297, the stability of the movable platform 27 is effectively enhanced, preventing tilting or skewing during movement, and ensuring smoother and more controlled movement of the movable platform 27 in the third direction. When the driving cylinder 28 is not operating, the movable platform 27 automatically slides down under the action of gravity. The movable hook 272 is limited and overlapped with the slitting frame 10 to support the movable platform 27, preventing the movable platform 27 from excessively squeezing the driving cylinder 28, thereby ensuring the safety and life of the driving cylinder 28.

[0040] Specifically, to prevent the travel of the movable platform 27 from exceeding a preset range, a first stopper is provided on the third feed plate 215, and a second stopper is mounted on the feed platform 21 to cooperate with the first stopper. The cooperation of the first and second stoppers effectively limits the travel of the movable platform 27.

[0041] like Figures 1 to 5 As shown, the cutting assembly 30 includes a first moving module 32, a second moving module 33 and a cutting motor 34 for driving the cutting blade 31 to rotate; The first movable module 32 is connected to the second movable module 33 and the cutting motor 34 respectively. The first movable module 32 is used to drive the cutting knife 31 to move linearly along the first direction. The second movable module 33 is installed on the slitting machine frame 10. The second movable module 33 is used to drive the first movable module 32 to move linearly along the second direction.

[0042] It should be noted that the coordination of the first movable module 32 and the second movable module 33 enables the cutting blade 31 to perform biaxial linear movement in the first and second directions, thereby enabling precise positioning and cutting of the battery separator within a two-dimensional plane, thereby meeting diverse slitting requirements. Because the cutting blade 31 can flexibly move in the first and second directions, in conjunction with the rotational motion of the cutting motor 34, it supports cutting operations along complex paths such as straight lines, oblique lines, and even curves, greatly enhancing processing capabilities and adaptability. Due to the multi-dimensional linkage control capabilities of the cutting assembly 30, it is easy to integrate with intelligent systems such as image recognition, laser positioning, and software programming, further realizing automated and precise slitting of battery separators.

[0043] like Figures 1 to 5 As shown, the first movable module 32 includes a first movable frame 321 arranged along the first direction, a first movable base 322 is slidably connected to the first movable frame 321, a cutting motor 34 is installed on the first movable base 322, and a first movable motor 323 is installed at one end of the first movable frame 321 away from the cutting blade 31 for driving the first movable base 322 to move linearly along the first direction; The second movable module 33 includes a second movable frame 331 fixedly connected to the slitting machine frame 10 and arranged along the second direction, and a second movable seat 332 fixedly connected to the first movable frame 321 is slidably connected to the second movable frame 331, and a second movable motor 333 is installed at one end of the second movable frame 331 for driving the second movable seat 332 to move linearly along the second direction.

[0044] Specifically, the second moving seat 332 is driven by the second moving motor 333 to move linearly along the second direction. Due to the first moving frame 321 and the second moving seat 332, the second moving seat 332 drives the first moving frame 321 to move, and then drives the cutting knife 31 to move along the second direction; the first moving motor 323 drives the first moving seat 322 to move linearly along the first direction, and the cutting knife 31 is installed on the cutting motor 34, so that the first moving seat 322 drives the cutting knife 31 to move along the first direction, so that the cutting knife 31 can move in the first direction and the second direction, realizing precise positioning cutting, greatly improving cutting accuracy and control flexibility, and solving the technical problem of insufficient flexibility of the traditional cutting knife 31.

[0045] It should be noted that the second movable frame 331 is fixed to the slitting frame 10, providing overall support for the cutting assembly 30. The fixed connection between the first movable frame 321 and the second movable base 332 forms a stable load-bearing platform, ensuring the structural rigidity and load-bearing stability of the cutting assembly 30 during movement. Even at high speeds or when processing hard materials, deformation and vibration are unlikely to occur. Both the first movable motor 323 and the second movable motor 333 can be precisely controlled through a program, enabling complex trajectory planning and batch automation. This makes them widely applicable for the automated slitting of various types of roll materials, such as labels, films, and fabrics.

[0046] Working principle: Before working, the moving hook 272 is connected to the slitting frame 10, and the positioning column 231 is in the retracted state; During operation, one end of the supporting roller 40 loaded with the battery separator is inserted into the first rotating groove 2131 and the second rotating groove 2141 manually or by a robot, and the driving cylinder 28 drives the movable platform 27 to move upward along the third direction, so that the positioning cylinder 23 moves to a preset positioning position; then the positioning cylinder 23 drives the positioning post 231 to extend, so that the positioning post 231 rotates and positions the supporting roller 40; The feeding motor 24 drives the feeding shaft 241 to rotate. Since the feeding shaft 241 is equipped with a feeding gear 251 and a first rotating wheel 252, the feeding shaft 241 drives the feeding gear 251 and the first rotating wheel 252 to rotate synchronously. Since the feeding gear 251 is engaged with the feeding rack 253, the feeding gear 251 drives the feeding table 21 to move linearly along the first direction. Since the first rotating wheel 252 and the second rotating wheel 254 are connected by the feeding belt 26, the first rotating wheel 252 drives the supporting roller 40 to rotate, thereby causing the supporting roller 40 to rotate and move linearly at the same time. The first movable module 32 and the second movable module 33 drive the cutting blade 31 to move linearly along the first direction and the second direction; the cutting motor 34 drives the cutting blade 31 to rotate, so that the cutting blade 31 realizes multi-motion coupling; By moving the support roller 40 and the cutting knife 31 closer to or farther away from each other, the cutting knife 31 cuts the battery diaphragm on the support roller 40, thereby realizing mobile cutting of the battery diaphragm and solving the technical problem of knife jamming when traditional cutting mechanisms cut battery diaphragms.

[0047] Example 2: An embodiment of the present invention provides a slitting system for battery diaphragm production, including the slitting mechanism for battery diaphragm production as described in the first embodiment.

[0048] As described above, the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that the technical solutions described in the above embodiments can still be modified, or some of the technical features thereof can be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A slitting mechanism for producing battery separators, characterized in that: The invention comprises a slitting frame (10) arranged in a frame structure, a feeding assembly (20) and a cutting assembly (30) being mounted on the slitting frame (10), a rotatably connected supporting roller (40) being mounted on the feeding assembly (20), and a battery separator being wound on the supporting roller (40); The feeding assembly (20) is used to drive the supporting roller (40) to rotate and move linearly along a first direction, and the cutting assembly (30) is used to drive the cutting knife (31) to rotate and move linearly along a first direction and a second direction; the first direction and the second direction are perpendicular to each other, and the supporting roller (40) and the cutting knife (31) are relatively close to or relatively far away from each other to achieve mobile cutting of the battery separator.

2. The battery separator production slitting mechanism according to claim 1, characterized in that: The feeding assembly (20) includes a feeding platform (21) slidably connected to the slitting frame (10), a feeding rack (22) is provided on one side of the feeding platform (21), a positioning cylinder (23) is installed on the feeding rack (22), and a positioning column (231) slidably connected to the feeding rack (22) is installed on the telescopic rod of the positioning cylinder (23); One end of the supporting roller (40) is rotatably connected to the feeding platform (21), and the positioning column (231) is used to rotationally position the other end of the supporting roller (40); a feeding motor (24) is installed on the feeding platform (21) for driving the supporting roller (40) to perform rotational motion, and the feeding motor (24) is also used to drive the feeding platform (21) and the feeding rack (22) to move linearly along a first direction.

3. The battery separator production slitting mechanism according to claim 2, characterized in that: The feeding motor (24) is provided with a feeding shaft (241), and a feeding gear (251) and a first rotating wheel (252) are sequentially mounted on the feeding shaft (241); a feeding rack (253) meshing with the feeding gear (251) is fixedly mounted on the slitting frame (10); A second rotating wheel (254) corresponding to the first rotating wheel (252) is fixedly sleeved on the supporting roller (40), and a feeding belt (26) is wound around the first rotating wheel (252) and the second rotating wheel (254).

4. The battery separator production slitting mechanism according to claim 3, characterized in that: The feeding platform (21) is slidably connected to a movable platform (27), the feeding frame (22) is fixedly mounted on the movable platform (27), and a driving cylinder (28) is mounted on the feeding platform (21) for driving the movable platform (27) to move linearly along a third direction; A clamping column (271) is fixedly connected to the movable platform (27), and the telescopic rod of the driving cylinder (28) is fixedly connected to the clamping column (271); the first direction, the second direction, and the third direction are perpendicular to each other.

5. The battery separator production slitting mechanism according to claim 4, characterized in that: Two first slide rails (291) are fixedly installed on the slitting frame (10) and are distributed in parallel and arranged along a first direction. Each of the first slide rails (291) is slidably connected to at least one first slider (292) fixedly connected to the feeding table (21). A second slide rail (293) is installed on one side of the slitting frame (10) and is arranged along the first direction. The second slide rail (293) is slidably connected to at least one second slider (294) fixedly connected to the feeding table (21). The feeding platform (21) is fixedly connected to two third slide rails (295) distributed in parallel and arranged along a third direction, and each of the third slide rails (295) is slidably connected to at least one third slider (296) fixedly connected to the moving platform (27); the height of the first slide rail (291) in the third direction is greater than the height of the second slide rail (293) in the third direction.

6. The battery separator production slitting mechanism according to claim 5, characterized in that: The feeding platform (21) includes a first feeding plate (211) and a second feeding plate (212) fixedly connected to each other, the first feeding plate (211) is fixedly connected to the first slider (292), and a first feeding block (213) and a second feeding block (214) are fixedly installed on one end of the second feeding plate (212) away from the feeding frame (22), the first feeding block (213) is provided with a first rotating groove (2131), and the second feeding block (214) is provided with a second rotating groove (2141) corresponding to the first rotating groove (2131); The end of the supporting roller (40) away from the feeding rack (22) is rotatably connected to the first rotating groove (2131) and the second rotating groove (2141), and the end of the second feeding plate (212) close to the feeding rack (22) is fixedly connected to the third feeding plate (215), and the third feeding plate (215) is fixedly connected to the second slider (294).

7. The battery separator production slitting mechanism according to claim 6, characterized in that: The driving cylinder (28) is mounted on the third feeding plate (215), and the movable platform (27) is mounted with two sliding rods (297) that are distributed in parallel and slidably connected to the third feeding plate (215); The distance between the two third slide rails (295) is greater than the distance between the two slide bars (297), and the movable platform (27) is provided with at least one movable hook (272) for limited overlap with the slitting machine frame (10), and the movable hook (272) and the movable platform (27) are an integrally formed structure.

8. The battery separator production slitting mechanism according to any one of claims 1 to 7, characterized in that: The cutting assembly (30) includes a first movable module (32), a second movable module (33), and a cutting motor (34) for driving the cutting blade (31) to perform rotational motion; The first movable module (32) is connected to the second movable module (33) and the cutting motor (34) respectively. The first movable module (32) is used to drive the cutting knife (31) to move linearly along a first direction. The second movable module (33) is installed on the slitting machine frame (10). The second movable module (33) is used to drive the first movable module (32) to move linearly along a second direction.

9. The battery separator production slitting mechanism according to claim 8, characterized in that: The first movable module (32) comprises a first movable frame (321) arranged along a first direction, a first movable seat (322) being slidably connected to the first movable frame (321), the cutting motor (34) being mounted on the first movable seat (322), and a first movable motor (323) for driving the first movable seat (322) to move linearly along the first direction being mounted on an end of the first movable frame (321) away from the cutting blade (31); The second movable module (33) comprises a second movable frame (331) fixedly connected to the slitting frame (10) and arranged along the second direction, a second movable seat (332) fixedly connected to the first movable frame (321) is slidably connected to the second movable frame (331), and a second movable motor (333) for driving the second movable seat (332) to move linearly along the second direction is installed at one end of the second movable frame (331).

10. A slitting system for producing battery separators, characterized in that: It comprises a slitting mechanism for producing battery separators as described in any one of claims 1 to 9.

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