Twisting type battery diaphragm punching device

By combining the T-shaped seat and the baffle structure, the battery separator is pressed and fixed, which solves the problem of the battery separator being pressed into the punch during the punching process. This achieves a stable punching effect and quick template replacement, and is suitable for processing battery separators of different diameters.

CN223890118UActive Publication Date: 2026-02-10GUIZHOU PACO ENERGY TECH CO LTD
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Patent Information

Application Number
CN202520573530.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-29
Publication Date
2026-02-10
Estimated Expiration
2035-03-29

AI Technical Summary

Technical Problem

Existing battery separator punching devices lack a positioning structure, which makes it easy for the flexible battery separator to be pressed into the punch hole during the punching process, affecting normal punching.

Method used

The device employs a combination design of T-shaped base, T-shaped groove, first stop bar, first card holder, slot, second stop bar, second card holder, positioning plate, slide bar, spring, limit plate and damping shaft to achieve the pressing and fixing of battery separator, and controls the operation of the equipment through PLC controller.

Benefits of technology

It effectively prevents the battery separator from being pressed into the punch during the punching process, ensuring normal punching, and allows for quick replacement of different templates and seats to meet the processing needs of battery separators of different diameters.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223890118U_ABST
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Abstract

The utility model discloses a twisting type battery diaphragm punching device which comprises a machine base, an inserting groove is formed in the machine base, a lower die plate is inserted into the inserting groove, an installation frame is fixedly installed at the rear end of the machine base, a hydraulic cylinder is fixedly installed at the top end of the installation frame, and the output end of the hydraulic cylinder extends out of the bottom end of the installation frame and is fixedly provided with a lifting frame. A mounting seat is fixedly mounted at the bottom end of the lifting frame, a T-shaped groove is formed in the mounting seat, a T-shaped seat is inserted into the T-shaped groove, positioning plates are arranged at the bottom ends of the two sides of the lifting frame, and two sliding rods are fixedly mounted at the top end of each positioning plate. According to the twisting type battery diaphragm punching device, a battery diaphragm can be pressed and fixed in the punching process, the situation that the battery diaphragm is pressed into a punched hole by a punch in the punching process, normal punching use is affected is avoided, meanwhile, the lower die plate and the T-shaped base can be rapidly disassembled and assembled with equipment according to use requirements, and the working efficiency is improved. And the lower mold plates and the T-shaped seats of different models can be conveniently replaced, so that the punching processing use of the battery diaphragms of different diameters can be met.
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Description

TECHNICAL FIELD

[0001] The utility model relates to battery diaphragm punching equipment technical field, concretely is a twist type battery diaphragm punching device. BACKGROUND

[0002] The twist type battery is actually a button cell. The button cell is a small battery similar in shape to a button, widely used in various electronic products, such as watches, calculators, remote controls, etc. Due to its small size, light weight and high energy density, the button cell becomes an ideal power source for portable devices. The diaphragm in the button cell is a thin film material with a microporous structure, located between the positive and negative electrodes of the battery. Its main function is to prevent the positive and negative electrodes from directly contacting and short-circuiting, while allowing ions to pass freely, ensuring the normal operation of the battery. The twist type battery diaphragm needs to be punched into multiple discs during the production process.

[0003] After searching, patent application No. CN201220296271.2 discloses a button cell material punching machine, which includes a base and a fixed frame fixed on the base. The fixed frame is provided with a force amplification transmission mechanism and a lead mechanism. The lead mechanism is connected with an upper die punch and a rocker. By rotating the rocker, the force amplification transmission mechanism amplifies the force, and the lead mechanism drives the upper die punch to punch the battery material placed on the base. The button cell material punching machine realizes the precision punching of the diaphragm material and the pole piece material in the button cell through the 60 times force amplification transmission mechanism and the lead mechanism with a perpendicularity error of 0.002mm. After punching, there is no burr, indentation, and powder falling. At the same time, the stable 0.002mm mold matching precision makes the mold maintain 100,000 times of punching after reasonable grinding.

[0004] However, this patent still has shortcomings. The battery diaphragm punching device lacks a structure for positioning the battery diaphragm. Since the battery diaphragm is a soft material, when the upper die punch is pressed down, it often presses the battery diaphragm into the punching die, making it difficult to complete the punching work smoothly.

[0005] Therefore, we propose a twist type battery diaphragm punching device. Utility model content

[0006] The utility model aims to provide a twist type battery diaphragm punching device to solve the problems raised in the background technology.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a torsion-type battery separator punching device, comprising a base, a slot provided on the base, a lower template inserted into the slot, a mounting frame fixedly installed at the rear end of the base, a hydraulic cylinder fixedly installed at the top of the mounting frame, the output end of the hydraulic cylinder extending out of the bottom end of the mounting frame and fixedly installed with a lifting frame, a mounting base fixedly installed at the bottom end of the lifting frame, a T-slot provided in the mounting base, a T-shaped seat inserted into the T-slot, positioning plates provided at the bottom ends of both sides of the lifting frame, two sliding rods fixedly installed at the top of each positioning plate, the top ends of multiple sliding rods extending out of the lifting frame, and limit plates fixedly installed at the top ends of multiple sliding rods, springs sleeved on the outer sides of multiple sliding rods, multiple punches fixedly installed at the bottom end of the T-shaped seat, punching holes provided on the lower template corresponding to the multiple punches, and multiple sliding rods slidably connected inside the lifting frame.

[0008] Optionally, the front end of the base is rotatably connected to two first stop rods, the front end of the lower template is fixedly installed with two first brackets, the top ends of the two first stop rods are respectively engaged in the corresponding first brackets, the front end of the mounting base is rotatably connected to two second stop rods, the front end of the T-shaped base is fixedly installed with two second brackets, the bottom ends of the two second stop rods are respectively engaged in the corresponding second brackets, and the lower template and the T-shaped base can be fixed and limited by the first stop rods and the second stop rods.

[0009] Optionally, damping shafts are fixedly installed at the rear ends of both first and second stop levers, and multiple damping shafts are respectively connected to the base and mounting base for damping rotation. This design is beneficial to the use of this equipment.

[0010] Optionally, the bottom ends of the multiple springs are fixedly mounted on the positioning plate, and the top ends of the multiple springs are fixedly mounted on the lifting frame. This design is beneficial to the use of the equipment.

[0011] Optionally, the height of the two positioning plates is lower than that of the punch, which is beneficial to the use of this equipment.

[0012] Optionally, a collection box is inserted into the front end of the machine base at the lower part of the lower template, and an opening is provided at the top of the machine base at the lower template, so that the punched battery separator can be easily collected through the collection box.

[0013] Optionally, a PLC controller is fixedly installed on the right side of the base, which facilitates the control of the equipment during operation.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] Through the cooperation of the T-shaped seat, T-slot, first stop bar, first bracket, slot, second stop bar, second bracket, positioning plate, slide bar, spring, limit plate and damping shaft, the battery separator can be pressed and fixed during the punching process, preventing the battery separator from being pressed into the punch hole by the punch during the punching process, which would affect the normal punching use. At the same time, the lower template and T-shaped seat can be quickly disassembled and assembled with the equipment according to the needs of use, and it is convenient to replace different models of lower template and T-shaped seat, so as to meet the punching processing of battery separators of different diameters. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of a torsion-type battery separator punching device according to the present invention;

[0017] Figure 2 This is a cross-sectional view of a torsion-type battery separator punching device according to the present invention;

[0018] Figure 3 This is a cross-sectional view of the damping shaft in a torsion battery separator punching device of this utility model.

[0019] Figure 4 This utility model relates to a torsion-type battery separator punching device. Figure 3 A magnified view of A in the middle.

[0020] In the diagram: 1. Base; 2. Mounting bracket; 3. Lifting frame; 4. Lower template; 5. Collection box; 6. PLC controller; 7. Mounting base; 8. T-slot; 9. T-slot; 10. Punch; 11. Punch hole; 12. First stop bar; 13. First card holder; 14. Slot; 15. Second stop bar; 16. Second card holder; 17. Positioning plate; 18. Slide bar; 19. Spring; 20. Limiting plate; 21. Damping shaft; 22. Hydraulic cylinder. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figures 1 to 4This utility model provides a torsion-type battery separator punching device, including a base 1, a slot 14 on the base 1, a lower template 4 inserted into the slot 14, a mounting frame 2 fixedly installed at the rear end of the base 1, a hydraulic cylinder 22 fixedly installed at the top of the mounting frame 2, the output end of the hydraulic cylinder 22 extending out of the bottom end of the mounting frame 2 and fixedly installed with a lifting frame 3, a mounting seat 7 fixedly installed at the bottom end of the lifting frame 3, a T-slot 8 provided in the mounting seat 7, a T-shaped seat 9 inserted into the T-slot 8, positioning plates 17 provided at the bottom ends of both sides of the lifting frame 3, two sliding rods 18 fixedly installed at the top end of each positioning plate 17, the top ends of multiple sliding rods 18 extending out of the lifting frame 3, and limit plates 20 fixedly installed at the top ends of multiple sliding rods 18, springs 19 sleeved on the outer side of multiple sliding rods 18, multiple punches 10 fixedly installed at the bottom end of the T-shaped seat 9, punch holes 11 provided on the lower template 4 corresponding to multiple punches 10, and multiple sliding rods 18 slidably connected in the lifting frame 3.

[0023] Two first stop rods 12 are rotatably connected to the front end of the base 1. Two first brackets 13 are fixedly installed at the front end of the lower template 4. The top ends of the two first stop rods 12 are respectively engaged in the corresponding first brackets 13. Two second stop rods 15 are rotatably connected to the front end of the mounting base 7. Two second brackets 16 are fixedly installed at the front end of the T-shaped base 9. The bottom ends of the two second stop rods 15 are respectively engaged in the corresponding second brackets 16. The first stop rods 12 and the second stop rods 15 can fix and limit the lower template 4 and the T-shaped base 9. The rear ends of the two first stop rods 12 and the second stop rods 15 are all fixedly installed with damping shafts 21. Multiple damping shafts 21 are respectively damping and rotatably connected to the base 1. The base 1 and mounting base 7 are designed to facilitate the use of this equipment. The bottom ends of multiple springs 19 are fixedly mounted on the positioning plate 17, and the top ends of multiple springs 19 are fixedly mounted on the lifting frame 3. The height of the two positioning plates 17 is lower than that of the punch 10. The front end of the base 1 is connected to the lower part of the lower template 4, and the top of the base 1 is provided with an opening at the lower template 4. The collection box 5 facilitates the collection of the punched battery separators. A PLC controller 6 is fixedly mounted on the right side of the base 1, which facilitates the control of the equipment.

[0024] Working principle: During use, the battery separator to be punched is laid flat on the lower template 4, and then the punching switch is turned on. At this time, the output end of the hydraulic cylinder 22 drives the lifting frame 3 to press down, so that the two positioning plates 17 first press against the battery separator to fix it. As the lifting frame 3 continues to press down, the two positioning plates 17 will compress the spring 19, causing the tops of multiple sliding rods 18 to extend out of the lifting frame 3. Finally, multiple punches 10 and punch holes 11 cooperate to punch the battery separator into multiple round pieces. Multiple round pieces fall into the collection box 5 through the punch holes 11 and the through-hole. Then the hydraulic cylinder 22 drives the lifting frame 3 to rise and reset. When it is necessary to punch battery separators of different diameters, the two first stop rods 12 and the second stop rod 15 are rotated to the side away from each other, so that the first stop rod 12 disengages from the first stop rod 15. The second stop bar 15 disengages from the second bracket 16, and then the lower template 4 and T-shaped seat 9 are pulled forward, so that the T-shaped seat 9 extends into the T-groove 8 and the lower template 4 extends into the slot 14. This allows for quick replacement of the T-shaped seat 9 with different diameter punching heads and the lower template 4 with different diameter punching holes. This type of torsion-type battery separator punching device is easy to use. The above components can press and fix the battery separator during the punching process, preventing the battery separator from being pressed into the punching hole 11 by the punch 10 during the punching process, which would affect normal punching. At the same time, the lower template 4 and T-shaped seat 9 can be quickly disassembled and assembled from the equipment according to the needs of use, making it convenient to replace different models of lower template 4 and T-shaped seat 9, thereby meeting the needs of punching and processing battery separators of different diameters.

[0025] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A torsion-type battery separator punching device, characterized in that, Includes a base (1), on which a slot (14) is provided, into which a lower template (4) is inserted. A mounting bracket (2) is fixedly installed at the rear end of the base (1), and a hydraulic cylinder (22) is fixedly installed at the top of the mounting bracket (2). The output end of the hydraulic cylinder (22) extends out of the bottom end of the mounting bracket (2) and is fixedly installed with a lifting frame (3). A mounting seat (7) is fixedly installed at the bottom end of the lifting frame (3), and a T-slot (8) is provided in the mounting seat (7). A T-shaped seat (9) is inserted into the T-slot (8). The lifting frame (3) has two sides. Each of the bottom ends is provided with a positioning plate (17), and two slide rods (18) are fixedly installed at the top of each positioning plate (17). The top ends of multiple slide rods (18) extend out of the lifting frame (3), and limit plates (20) are fixedly installed at the top ends of multiple slide rods (18). Springs (19) are sleeved on the outer side of multiple slide rods (18). Multiple punches (10) are fixedly installed at the bottom end of the T-shaped seat (9). Punch holes (11) are provided on the lower template (4) corresponding to multiple punches (10). Multiple slide rods (18) are slidably connected in the lifting frame (3).

2. The torsion-type battery separator punching device according to claim 1, characterized in that, The front end of the base (1) is rotatably connected to two first stop rods (12), the front end of the lower template (4) is fixedly installed with two first brackets (13), the top ends of the two first stop rods (12) are respectively locked in the corresponding first brackets (13), the front end of the mounting base (7) is rotatably connected to two second stop rods (15), the front end of the T-shaped base (9) is fixedly installed with two second brackets (16), the bottom ends of the two second stop rods (15) are respectively locked in the corresponding second brackets (16).

3. The torsion-type battery separator punching device according to claim 2, characterized in that, The rear ends of the two first stop levers (12) and the second stop lever (15) are fixedly installed with damping shafts (21), and the multiple damping shafts (21) are respectively damping rotatably connected in the base (1) and the mounting base (7).

4. The torsion-type battery separator punching device according to claim 1, characterized in that, The bottom ends of the multiple springs (19) are fixedly mounted on the positioning plate (17), and the top ends of the multiple springs (19) are fixedly mounted on the lifting frame (3).

5. The torsion-type battery separator punching device according to claim 1, characterized in that, The height of the two positioning plates (17) is lower than that of the punch (10).

6. The torsion-type battery separator punching device according to claim 1, characterized in that, The front end of the base (1) is connected to the lower part of the lower template (4) and a collection box (5) is inserted therein. The top of the base (1) is provided with an opening at the lower template (4).

7. The torsion-type battery separator punching device according to claim 1, characterized in that, A PLC controller (6) is fixedly installed on the right side of the base (1).

Citation Information

Patent Citations

  • Button cell material die cutting machine

    CN202668665U