Membrane pre-cutting mechanism
By designing negative and positive pressure air vents in the pre-cutting diaphragm mechanism, the problem of diaphragm adsorption on the battery cell is solved, enabling automated recycling and efficient removal of the diaphragm, thus improving the efficiency of battery cell processing and product quality.
Patent Information
- Application Number
- CN202423132958.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-18
- Publication Date
- 2025-12-09
- Estimated Expiration
- 2034-12-18
AI Technical Summary
Existing cell separator cutting mechanisms often result in the separator adhering to the cell after cutting, making it difficult to remove and affecting cutting efficiency and product usability.
The device employs a pre-cut diaphragm mechanism, combined with negative and positive pressure air vents. The diaphragm is adsorbed onto the pre-cutting table through the negative pressure air vent, and the cut diaphragm is blown into the storage box through the positive pressure air vent, thus achieving automated recycling.
It effectively prevents the diaphragm from remaining on the battery cell, improves the efficiency of diaphragm removal and the usability of the product, and reduces the impact on the next removal operation.
Smart Images

Figure CN223651582U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of battery cell processing equipment, and more specifically, it relates to a pre-cut diaphragm mechanism. Background Technology
[0002] The battery cell separator is a membrane material placed between the positive and negative electrodes of the battery cell. It is a very critical part of the battery cell and has a direct impact on the safety and cost of the battery cell. The use of the separator can protect the battery cell users and the equipment that uses the battery cell.
[0003] Before hot pressing, the cell separator and the underside separator of the pad need to be pre-removed. However, the separator is thin and soft, and existing cell separator cutting mechanisms only have the function of cutting the separator. After the separator is cut, it easily adheres to the cell and is difficult to remove. Therefore, in view of this, this paper studies and improves the existing structure and its shortcomings to provide a pre-cut separator mechanism, aiming to achieve a more practical purpose. Utility Model Content
[0004] To solve the above-mentioned technical problems, this utility model provides a pre-cut diaphragm mechanism, which is achieved by the following specific technical means:
[0005] A pre-cutting diaphragm mechanism includes a main body, a pre-cutting table fixedly installed on one side of the main body, a cavity I provided on the inner side of the pre-cutting table, multiple sets of negative pressure air outlets provided on the pre-cutting table, and multiple sets of ventilation pipes I fixedly installed on the inner side of the cavity I corresponding to the multiple sets of negative pressure air outlets, the multiple sets of negative pressure air outlets being connected to an air outlet through the multiple sets of ventilation pipes I; an air blowing seat fixedly installed on one side of the pre-cutting table, multiple sets of positive pressure air outlets provided on the air blowing seat, and multiple sets of ventilation pipes II fixedly installed on the inner side of the air blowing seat corresponding to the multiple sets of positive pressure air outlets, the multiple sets of positive pressure air outlets being connected to an air inlet through the multiple sets of ventilation pipes II, one end of each air inlet and air outlet passing through the pre-cutting table and fixedly connected to a connecting pipe for connecting to a fan; a cutting mechanism is installed on one side of the main body.
[0006] Furthermore, two sets of guide rails are symmetrically fixedly installed on one side of the main body. A connecting seat is slidably connected to one side of each set of guide rails. A movable seat is fixedly connected to both sets of connecting seats. A pressure table is fixedly installed on the bottom side of the movable seat corresponding to the pre-cutting table.
[0007] Furthermore, two sets of support seats are symmetrically fixed to one side of the main body corresponding to the pressure plate by fasteners.
[0008] Furthermore, a fixing plate is fixedly installed on the top side of the main body, and a cylinder is fixedly installed on the top side of the fixing plate. A connecting block is fixedly installed at the output end of the cylinder, and the connecting block is fixedly connected to one side of the movable seat by fasteners.
[0009] Furthermore, a storage basket is fixedly installed on one side of the main body corresponding to the positive pressure air vent, and a discharge pipe for connecting to the vacuum generator is fixedly installed on one side of the storage basket. One end of the discharge pipe is connected to the inside of the storage basket.
[0010] Furthermore, the cutting mechanism includes two sets of guide rails fixedly mounted on the movable base. Each set of guide rails has a connecting seat slidably connected to one side, and the two sets of connecting seats are fixedly connected to a cutting blade. A cylinder is fixedly mounted on one side of the movable base, and the output end of the cylinder is connected to the two sets of connecting seats via fasteners.
[0011] Furthermore, two sets of fixing seats are symmetrically fixedly installed on one side of the main body, and two sets of limiting rods are fixedly installed on the adjacent sides of the two sets of fixing seats. All four sets of limiting rods abut against one side of the cutting blade.
[0012] Furthermore, a control box is fixedly installed on the top side of the main body.
[0013] Compared with the prior art, the present invention has the following beneficial effects:
[0014] 1. This utility model, through the cooperation of a pre-cutting table and a negative pressure air outlet, can achieve the adsorption of the bottom diaphragm and side diaphragm on the pre-cutting table when the cell diaphragm is cut off, preventing the diaphragm from adsorbing onto the cell after the cell diaphragm is cut off, thereby increasing the cutting efficiency of the cell diaphragm.
[0015] 2. By combining the air-blowing base and the positive pressure air outlet, this utility model can blow the cut-off diaphragm into the storage frame after the battery cell is removed, preventing the diaphragm remaining on the pre-cutting table from affecting the next diaphragm cutting operation, thus increasing the practicality of the product. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model.
[0017] Figure 2 This is a schematic diagram of the pre-cutting table structure of this utility model.
[0018] Figure 3 This is a schematic diagram of the structure of the storage basket of this utility model.
[0019] Figure 4 This is a schematic diagram of the structure of the cylinder and connecting block of this utility model.
[0020] Figure 5 This is a schematic diagram of the cylinder and cutting blade structure of this utility model.
[0021] In the diagram, the correspondence between component names and drawing numbers is as follows:
[0022] 1. Main body; 2. Pre-cutting table; 3. Negative pressure air outlet; 4. Air blowing seat; 5. Positive pressure air outlet; 6. Air inlet; 7. Air outlet; 8. Guide rail one; 9. Connecting seat one; 10. Moving seat; 11. Pressing table; 12. Support seat; 13. Fixing plate; 14. Cylinder one; 15. Connecting block; 16. Storage basket; 17. Discharge pipe; 18. Guide rail two; 19. Connecting seat two; 20. Cutting blade; 21. Fixing seat; 22. Limiting rod; 23. Control box; 24. Cylinder two. Detailed Implementation
[0023] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.
[0024] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. In addition, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0025] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. Example
[0026] As attached Figure 1 To be continued Figure 5 As shown:
[0027] This utility model provides a pre-cutting diaphragm mechanism, including a main body 1. A pre-cutting table 2 is fixedly installed on one side of the main body 1. The pre-cutting table 2 has a cavity on its inner side and multiple sets of negative pressure air inlets 3. Multiple sets of ventilation pipes are fixedly installed on the inner side of the cavity corresponding to the multiple sets of negative pressure air inlets 3. The multiple sets of negative pressure air inlets 3 are connected to an air outlet 7 through the multiple sets of ventilation pipes. An air blowing seat 4 is fixedly installed on one side of the pre-cutting table 2. The air blowing seat 4 has multiple sets of positive pressure air inlets 5. Multiple sets of ventilation pipes are fixedly installed on the inner side of the air blowing seat 4 corresponding to the multiple sets of positive pressure air inlets 5. The multiple sets of positive pressure air inlets 5 are connected to an air inlet 6 through the multiple sets of ventilation pipes. One end of the air inlet 6 and the air outlet 7 both pass through the pre-cutting table 2 and are fixedly connected to a connecting pipe that can be used to connect a fan. A cutting mechanism is installed on one side of the main body 1.
[0028] Two sets of guide rails 8 are symmetrically fixedly installed on one side of the main body 1. A connecting seat 9 is slidably connected to one side of each set of guide rails 8. A movable seat 10 is fixedly connected to both sets of connecting seats 9. A pressure table 11 is fixedly installed on the bottom side of the movable seat 10 corresponding to the pre-cutting table 2, which can stably fix the battery cell on the pre-cutting table 2.
[0029] Two sets of support seats 12 are symmetrically fixed to one side of the main body 1 corresponding to the pressure plate 11 by fasteners to increase the stability when fixing the battery cell.
[0030] A fixing plate 13 is fixedly installed on the top side of the main body 1, and a cylinder 14 is fixedly installed on the top side of the fixing plate 13. A connecting block 15 is fixedly installed on the output end of the cylinder 14. The connecting block 15 is fixedly connected to one side of the moving seat 10 by fasteners, which can drive the moving seat 10 to move automatically.
[0031] The main body 1 has a storage basket 16 fixedly installed on one side of the positive pressure air outlet 5. The storage basket 16 has a discharge pipe 17 fixedly installed on one side of the storage basket 16, which can be used to connect to the vacuum generator. One end of the discharge pipe 17 is connected to the inside of the storage basket 16, which can automatically recycle the diaphragm to facilitate the recycling of the diaphragm and prevent waste.
[0032] The cutting mechanism includes two sets of guide rails 18 fixedly mounted on the movable base 10. Each set of guide rails 18 has a connecting seat 19 slidably connected to one side. Both sets of connecting seats 19 are fixedly connected to a cutting blade 20. A cylinder 24 is fixedly mounted on one side of the movable base 10. The output end of the cylinder 24 is connected to the two sets of connecting seats 19 through fasteners, which can automatically cut off the diaphragm on the battery cell.
[0033] Two sets of fixing seats 21 are symmetrically fixedly installed on one side of the main body 1. Two sets of limiting rods 22 are fixedly installed on the adjacent sides of the two sets of fixing seats 21. All four sets of limiting rods 22 abut against one side of the cutting blade 20 to increase the stability of the cutting blade 20 when it moves.
[0034] A control box 23 is fixedly installed on the top side of the main body 1 to facilitate the control of the main body 1.
[0035] The working principle of this embodiment is as follows: When pre-cutting the diaphragm, the battery cell is first placed on the pre-cutting platform 2. Then, cylinder 14 is started to drive the connecting block 15 and the moving seat 10 to move. The moving seat 10 drives the pressing platform 11 to fix the battery cell on the pre-cutting platform 2 and the support seat 12. Then, the fan is started and cylinder 24 is started to drive the connecting seat 29 and the cutting blade 20 to move and cut the diaphragm. After the diaphragm is cut, the negative pressure air outlet 3 adsorbs the diaphragm, and the battery cell diaphragm is taken out and left on the pre-cutting platform 2. Then, the diaphragm is blown into the storage basket 16 through the positive pressure air outlet 5 to complete the pre-cutting of the battery cell diaphragm.
[0036] The embodiments of this utility model are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the utility model to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described in order to better illustrate the principles and practical applications of this utility model, and to enable those skilled in the art to understand this utility model and design various embodiments with various modifications suitable for a particular purpose.
Claims
1. A pre-cut diaphragm mechanism, comprising a main body (1), characterized in that: A pre-cutting table (2) is fixedly installed on one side of the main body (1). The pre-cutting table (2) has a cavity on its inner side. The pre-cutting table (2) has multiple sets of negative pressure air inlets (3). The cavity has multiple sets of ventilation pipes (1) fixedly installed on the inner side of the cavity corresponding to the multiple sets of negative pressure air inlets (3). The multiple sets of negative pressure air inlets (3) are connected to an air outlet (7) through the multiple sets of ventilation pipes (1). A blowing seat (4) is fixedly installed on one side of the pre-cutting table (2). The blowing seat (4) has multiple sets of positive pressure air inlets (5). The blowing seat (4) has multiple sets of ventilation pipes (2) fixedly installed on the inner side of the blowing seat (4) corresponding to the multiple sets of positive pressure air inlets (5). The multiple sets of positive pressure air inlets (5) are connected to an air inlet (6) through the multiple sets of ventilation pipes (2). One end of the air inlet (6) and the air outlet (7) both pass through the pre-cutting table (2) and are fixedly connected to a connecting pipe that can be used to connect a fan. A cutting mechanism is installed on one side of the main body (1).
2. The pre-cut diaphragm mechanism as described in claim 1, characterized in that: Two sets of guide rails (8) are symmetrically fixedly installed on one side of the main body (1). A connecting seat (9) is slidably connected to one side of each of the two sets of guide rails (8). A movable seat (10) is fixedly connected to both sets of connecting seats (9). A pressure table (11) is fixedly installed on the bottom side of the movable seat (10) corresponding to the pre-cutting table (2).
3. The pre-cut diaphragm mechanism as described in claim 2, characterized in that: Two sets of support seats (12) are symmetrically fixed on one side of the main body (1) corresponding to the pressure plate (11) by fasteners.
4. The pre-cut diaphragm mechanism as described in claim 2, characterized in that: A fixing plate (13) is fixedly installed on the top side of the main body (1), and a cylinder (14) is fixedly installed on the top side of the fixing plate (13). A connecting block (15) is fixedly installed at the output end of the cylinder (14), and the connecting block (15) is fixedly connected to one side of the moving seat (10) by fasteners.
5. The pre-cut diaphragm mechanism as described in claim 1, characterized in that: A storage basket (16) is fixedly installed on one side of the main body (1) corresponding to the positive pressure air outlet (5). A discharge pipe (17) for connecting a vacuum generator is fixedly installed on one side of the storage basket (16). One end of the discharge pipe (17) is connected to the inside of the storage basket (16).
6. The pre-cut diaphragm mechanism as described in claim 2, characterized in that: The cutting mechanism includes two sets of guide rails (18) fixedly installed on the movable seat (10). Each set of guide rails (18) is slidably connected to a connecting seat (19) on one side. Both sets of connecting seats (19) are fixedly connected to a cutting blade (20). A cylinder (24) is fixedly installed on one side of the movable seat (10). The output end of the cylinder (24) is connected to the two sets of connecting seats (19) through fasteners.
7. The pre-cut diaphragm mechanism as described in claim 6, characterized in that: Two sets of fixing seats (21) are symmetrically fixed on one side of the main body (1). Two sets of limiting rods (22) are fixedly installed on the adjacent sides of the two sets of fixing seats (21). All four sets of limiting rods (22) abut against one side of the cutting blade (20).
8. The pre-cut diaphragm mechanism as described in claim 1, characterized in that: A control box (23) is fixedly installed on the top side of the main body (1).