A lithium battery diaphragm casting base film trimming machine

Abstract

The application relates to the technical field of lithium battery diaphragm processing, in particular to a lithium battery diaphragm casting base film trimming machine which comprises two cross beams, the top of the cross beam is fixedly connected with a vertical beam, one side of the vertical beam is threadedly connected with an L-shaped plate through two first bolts, and one side of the L-shaped plate is rotationally connected with a screw rod. The locking bolt is rotated, the second clamping hoop is separated from the first clamping hoop, the screw rod is unlocked, the knob is rotated, the knob drives the screw rod to rotate, in the rotating process, the two screw rods rotate synchronously, the adjusting block which is threadedly connected with the screw rod is driven to move in the direction of approaching each other, the adjusting block drives the connecting block to move, and the connecting block drives the cutter to move, so that the distance between the two cutters can be adjusted according to the lithium battery diaphragm with different widths, and after the adjustment, the second clamping hoop and the first clamping hoop are fixed on the screw rod through the locking bolt, so that the screw rod is locked, and the stability of the cutter position is ensured.

Description

Technical Field

[0001] This application relates to the technical field of lithium battery separator processing, and in particular to a lithium battery separator casting base film trimming machine. Background Technology

[0002] With the rapid development of the new energy industry, lithium batteries, as a key power source, are increasingly widely used in electric vehicles, energy storage systems, and other fields. The performance and safety of lithium batteries largely depend on the quality of their core component—the lithium battery separator. As a crucial step in the lithium battery separator production process, the quality of the cast base film directly affects the performance of the final separator product. In the cast base film production process, the trimming process is a key step to ensure the dimensional accuracy and edge quality of the base film. Precise trimming effectively removes burrs, defects, and irregularities from the edges of the base film, ensuring that the width of the base film meets design requirements, thereby guaranteeing smooth subsequent processing and the stability of the final product. Currently, some lithium battery separator casting base film trimming machines use fixed blade installation, which cannot be flexibly adjusted according to the width requirements of different specifications of lithium battery separators in actual production. Even if some casting base film trimming machines adjust the blade position by rotating the screw, there is no effective locking measure for the screw after adjusting the blade position. As a result, during the operation of the casting base film trimming machine, due to factors such as mechanical vibration and material impact, the screw is prone to loosening, which in turn causes the blade position to shift. Utility Model Content

[0003] In order to solve the problems mentioned in the background art, this application provides a lithium battery separator casting base film trimming machine.

[0004] This application provides a lithium battery separator casting base film trimming machine, which adopts the following technical solution: It includes two crossbeams, with a vertical beam fixedly connected to the top of each crossbeam. An L-shaped plate is threadedly connected to one side of each vertical beam via two first bolts. A screw is rotatably connected to one side of the L-shaped plate, and an adjusting block is threadedly connected to the screw. A connecting block is fixedly connected to one side of the adjusting block, and a cutting tool is fixedly connected to one side of the connecting block. The end of one of the screws extends beyond the L-shaped plate and is fixedly connected to a knob. A support column is fixedly connected to one side of one of the L-shaped plates, and a first clamp is fixedly connected to the end of the support column. A second clamp is rotatably connected to the top of the first clamp, and a locking bolt is provided on the top of the second clamp. The second clamp and the first clamp are secured to the screw via the locking bolt. A positioning rod is fixedly connected to one side of the L-shaped plate, and a limit rod is slidably connected to the positioning rod. The end of the limit rod is fixedly connected to the other side of the corresponding adjusting block.

[0005] Optionally, the ends of the two screws that are close to each other are fixedly connected, and the threads of the two screws are in opposite directions.

[0006] Optionally, the top of the crossbeam is provided with a protrusion, which is threadedly connected to the crossbeam by two second bolts.

[0007] Optionally, a first guide roller is rotatably connected between the two protrusions, and the same reinforcing beam is fixedly connected between the two vertical beams.

[0008] Optionally, a second guide roller is rotatably connected between the two vertical beams, and a rectangular hole is provided on the vertical beam.

[0009] Optionally, a rectangular block is slidably connected to the rectangular hole, and an extrusion roller is rotatably connected between two rectangular blocks.

[0010] Optionally, a lead screw is rotatably connected between the inner walls of one of the two rectangular holes, the lead screw is threadedly connected to one of the two rectangular blocks, and a motor is fixedly connected to the top of one of the two vertical beams. The end of the lead screw extends to the top of the vertical beam and is fixedly connected to the output shaft of the motor.

[0011] In summary, this application includes the following beneficial technical effects: 1. This utility model separates the second clamp from the first clamp by rotating the locking bolt, unlocking the screw. Then, rotating the knob causes the screw to rotate. Since the two screws are fixedly connected and their threads rotate in opposite directions, they will rotate synchronously during rotation. This drives the adjusting block threaded onto the screw to move closer to each other. The adjusting block drives the corresponding limiting rod to slide on the positioning rod. The limiting rod limits the adjusting block, ensuring that it can only move linearly and will not rotate with the screw. The adjusting block drives the corresponding connecting block to move, and the connecting block drives the corresponding cutting tool to move. Thus, the distance between the two cutting tools can be adjusted according to the different widths of lithium battery separators. After adjustment, the second clamp and the first clamp are fixed to the screw by the locking bolt, thereby locking the screw and ensuring the stability of the cutting tool position.

[0012] 2. This utility model starts a motor, which drives a lead screw to rotate. The lead screw drives a rectangular block to move. The rectangular block slides on the corresponding rectangular hole. The rectangular block drives the extrusion roller to move, thereby adjusting the distance between the extrusion roller and the first guide roller. By controlling the forward and reverse rotation of the motor, the pressure of the extrusion roller on the base film can be increased or decreased, making it suitable for lithium battery separators of different thicknesses. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2This is a partial three-dimensional structural diagram of the present invention; Figure 3 This is a three-dimensional structural diagram of the connection between the first clamp, the second clamp, the support column, and the screw of this utility model. Figure 4 This utility model Figure 3 A schematic diagram of the three-dimensional structure on the other side; Figure 5 This is a schematic diagram of the three-dimensional structure of the vertical beam cut open according to this utility model.

[0014] Reference numerals: 1. Horizontal beam; 2. Vertical beam; 3. L-shaped plate; 4. First bolt; 5. Screw; 6. Adjusting block; 7. Connecting block; 8. Cutting tool; 9. Knob; 10. Support column; 11. First clamp; 12. Second clamp; 13. Locking bolt; 14. Positioning rod; 15. Limiting rod; 16. Protrusion; 17. Second bolt; 18. First guide roller; 19. Second guide roller; 20. Rectangular hole; 21. Rectangular block; 22. Extrusion roller; 23. Lead screw; 24. Motor; 25. Reinforcing beam. Detailed Implementation

[0015] The following is in conjunction with the appendix Figure 1-5 This application will be described in further detail.

[0016] This application discloses a lithium battery separator casting base film trimming machine. For example... Figure 1 As shown, the device includes two crossbeams 1. A vertical beam 2 is fixedly connected to the top of the crossbeams 1. An L-shaped plate 3 is threadedly connected to one side of the vertical beam 2 via two first bolts 4. A screw 5 is rotatably connected to one side of the L-shaped plate 3. An adjusting block 6 is threadedly connected to the screw 5. A connecting block 7 is fixedly connected to one side of the adjusting block 6. A cutter 8 is fixedly connected to one side of the connecting block 7. The end of one of the screws 5 extends to the outside of one of the L-shaped plates 3 and is fixedly connected to a knob 9. A support column 10 is fixedly connected to one side of one of the L-shaped plates 3. A first clamp 11 is fixedly connected to the end of the support column 10. A second clamp 12 is rotatably connected to the top of the first clamp 11. A locking bolt 13 is provided on the top of the second clamp 12. The second clamp 12 and the first clamp 11 are clamped onto the screw 5 by the locking bolt 13. A positioning rod 14 is fixedly connected to one side of the L-shaped plate 3. A limit rod 15 is slidably connected to the positioning rod 14. The end of the limit rod 15 is fixedly connected to the other side of the corresponding adjusting block 6.

[0017] Please see Figure 5A lead screw 23 is rotatably connected between the inner walls of one of the two rectangular holes 20. The lead screw 23 is threadedly connected to one of the two rectangular blocks 21. A motor 24 is fixedly connected to the top of one of the two vertical beams 2. The end of the lead screw 23 extends to the top of the vertical beam 2 and is fixedly connected to the output shaft of the motor 24. The rectangular holes 20 limit the rectangular block 21, so that the rectangular block 21 can only move up and down.

[0018] Please see Figure 2 The ends of the two screws 5 are fixedly connected to each other, and the threads of the two screws 5 are turned in opposite directions. Under the action of the opposite threads, the two adjusting blocks 6 can move towards or away from each other.

[0019] Please see Figure 1 A second guide roller 19 is rotatably connected between the two vertical beams 2. A rectangular hole 20 is opened on the vertical beam 2. A rectangular block 21 is slidably connected to the rectangular hole 20. A pressing roller 22 is rotatably connected between the two rectangular blocks 21. By adjusting the position of the pressing roller 22, lithium battery separators of different thicknesses can be pressed to prevent wrinkles from appearing on the lithium battery separator.

[0020] Please see Figure 1 A first guide roller 18 is rotatably connected between the two protrusions 16, and the same reinforcing beam 25 is fixedly connected between the two vertical beams 2. The reinforcing beam 25 is set to make the two vertical beams 2 more stable.

[0021] Please see Figure 1 The top of the crossbeam 1 is provided with a protrusion 16, which is threadedly connected to the crossbeam 1 by two second bolts 17. The second bolts 17 facilitate quick assembly and disassembly of the protrusion 16.

[0022] The implementation principle of a lithium battery separator casting base film trimming machine according to an embodiment of this application is as follows: In use, one side of the lithium battery separator is passed between the second guide roller 19 and the extrusion roller 22. Then, one side of the screw 5 is placed between the first guide roller 18 and fixed to an external winding device. Two cutters 8 are used to trim both sides. When the spacing of the cutters 8 needs to be adjusted, first, the locking bolt 13 is rotated to separate the second clamp 12 from the first clamp 11, unlocking the screw 5. Then, the knob 9 is rotated, causing the screw 5 to rotate. Since the two screws 5 are fixedly connected and their threads rotate in opposite directions, they will rotate synchronously during rotation. This drives the adjusting block 6, which is threaded onto the screw 5, to move closer to each other. The adjusting block 6 drives the corresponding limiting rod 15 to slide on the positioning rod 14. The adjusting block 6 is limited by the limiting rod 15, so that the adjusting block 6 can only move linearly and will not rotate with the rotation of the screw 5. The adjusting block 6 drives the corresponding connecting block 7 to move, and the connecting block 7 drives the corresponding cutter 8 to move. Thus, the distance between the two cutters 8 can be adjusted according to the different widths of lithium battery separators. After adjustment, the screw 5 is fixed by the second clamp 12 and the first clamp 11 through the locking bolt 13, thereby locking the screw 5 and ensuring the stability of the cutter 8 position. The motor 24 can also be started. The motor 24 drives the lead screw 23 to rotate, and the lead screw 23 drives the rectangular block 21 to move. The rectangular block 21 slides on the corresponding rectangular hole 20. The rectangular block 21 drives the extrusion roller 22 to move, thereby adjusting the distance between the extrusion roller 22 and the first guide roller 18. By controlling the forward and reverse rotation of the motor 24, the pressure of the extrusion roller 22 on the base film can be increased or decreased, ensuring that the base film maintains a suitable flatness during the trimming process.

[0023] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A lithium battery separator casting base film trimming machine, comprising two crossbeams (1), characterized in that: A vertical beam (2) is fixedly connected to the top of the crossbeam (1). An L-shaped plate (3) is threadedly connected to one side of the vertical beam (2) by two first bolts (4). A screw (5) is rotatably connected to one side of the L-shaped plate (3). An adjusting block (6) is threadedly connected to the screw (5). A connecting block (7) is fixedly connected to one side of the adjusting block (6). A cutter (8) is fixedly connected to one side of the connecting block (7). The end of one of the two screws (5) extends to the outside of one of the L-shaped plates (3) and is fixedly connected to a knob (9). One of the two L-shaped plates (3) has a knob (9) on its end. A support column (10) is fixedly connected to the side. A first clamp (11) is fixedly connected to the end of the support column (10). A second clamp (12) is rotatably connected to the top of the first clamp (11). A locking bolt (13) is provided on the top of the second clamp (12). The second clamp (12) and the first clamp (11) are clamped on the screw rod (5) by the locking bolt (13). A positioning rod (14) is fixedly connected to one side of the L-shaped plate (3). A limit rod (15) is slidably connected to the positioning rod (14). The end of the limit rod (15) is fixedly connected to the other side of the corresponding adjusting block (6).

2. The lithium battery separator casting base film trimming machine according to claim 1, characterized in that: The ends of the two screws (5) are fixedly connected close to each other, and the threads of the two screws (5) are opposite.

3. A lithium battery separator casting base film trimming machine according to claim 2, characterized in that: The top of the crossbeam (1) is provided with a protrusion (16), which is threadedly connected to the crossbeam (1) by two second bolts (17).

4. A lithium battery separator casting base film trimming machine according to claim 3, characterized in that: A first guide roller (18) is rotatably connected between the two protrusions (16), and a reinforcing beam (25) is fixedly connected between the two vertical beams (2).

5. A lithium battery separator casting base film trimming machine according to claim 4, characterized in that: A second guide roller (19) is rotatably connected between the two vertical beams (2), and a rectangular hole (20) is provided on the vertical beams (2).

6. A lithium battery separator casting base film trimming machine according to claim 5, characterized in that: A rectangular block (21) is slidably connected to the rectangular hole (20), and an extrusion roller (22) is rotatably connected between the two rectangular blocks (21).

7. A lithium battery separator casting base film trimming machine according to claim 6, characterized in that: A lead screw (23) is rotatably connected between the inner walls of one of the two rectangular holes (20). The lead screw (23) is threadedly connected to one of the two rectangular blocks (21). A motor (24) is fixedly connected to the top of one of the two vertical beams (2). The end of the lead screw (23) extends to the top of the vertical beam (2) and is fixedly connected to the output shaft of the motor (24).

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