Battery cell film pasting mechanism

By designing a cell film application mechanism, including a film application stand, film pulling, material picking, and film cutting mechanism, the problem of large space occupation of the cell film application mechanism was solved, achieving the effects of saving space and improving film application accuracy.

CN223935060UActive Publication Date: 2026-02-24HUNAN HAPPY TIMES NEW ENERGY CO LTD
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Patent Information

Application Number
CN202520416394.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-11
Publication Date
2026-02-24
Estimated Expiration
2035-03-11

AI Technical Summary

Technical Problem

The existing cell film application mechanism occupies a large space and needs to be improved to save space and improve the accuracy and efficiency of film application.

Method used

A battery cell laminating mechanism is designed, comprising a laminating stand, a film pulling mechanism, a left material picking mechanism, a right material picking mechanism, a film cutting mechanism, and a laminating auxiliary mechanism. The horizontally placed laminating stand provides support and stability, the film pulling mechanism ensures the flatness and positioning of the material, the left and right material picking mechanisms move the battery cells, the film cutting mechanism precisely cuts the cells, and the laminating auxiliary mechanism assists in tight lamination.

Benefits of technology

It saves space, improves the accuracy and efficiency of film application, ensures the flatness and accurate positioning of the film material, reduces manual operation, and improves production efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of battery cells, and discloses a battery cell film pasting mechanism which comprises a film pasting vertical frame which is horizontally arranged, a film pasting material mechanism for providing a film pasting material is arranged on the film pasting vertical frame; a film pulling mechanism for guiding a film pasting material is arranged; a left material taking mechanism and a right material taking mechanism which are used for moving the battery cells are arranged on the two sides of the film pasting vertical frame respectively; the film cutting mechanism is used for cutting off the film pasting material; a film sticking auxiliary mechanism for assisting in sticking a film sticking material to the surface of the battery cell is arranged; the film pasting vertical frame is used for horizontally placing the whole film pasting mechanism and plays a role in supporting and stabilizing; the film pasting material mechanism is a system for providing a film pasting material; the film drawing mechanism is used for guiding and stretching a film pasting material to ensure the smoothness and positioning of the material; the left material taking mechanism and the right material taking mechanism are used for moving the battery cell so as to correctly cover the surface of the battery cell with a film; and the film cutting mechanism is used for cutting off the film pasting material so that the film pasting material can be accurately cut to the proper size, and film pasting accuracy is ensured.
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Description

Technical Field

[0001] This utility model relates to the field of battery cell technology, and more specifically to a battery cell film application mechanism. Background Technology

[0002] Cell coating machines are typically used for applying protective films to battery cells.

[0003] The current battery cell film application mechanism generally cuts the film into the required size first, and then uses a suction mechanism to move and adsorb it onto the battery cell for film application. However, this setup results in a large overall space occupied by the machine, so it needs to be improved.

[0004] The technical problem to be solved by this utility model is to provide a simple battery cell film application mechanism that saves space. Utility Model Content

[0005] The technical problem this utility model addresses is: to provide a space-saving and convenient battery cell film application mechanism; a film application stand is used to horizontally place the entire film application mechanism, providing support and stability; a film application material mechanism is a system for providing film application material; a film pulling mechanism is used to guide and stretch the film application material, ensuring the flatness and positioning of the material; two mechanisms, a left material picking mechanism and a right material picking mechanism, are used to move the battery cell so that the film can be correctly covered onto the surface of the battery cell; a film cutting mechanism is used to cut the film application material so that it can be precisely cut to the appropriate size, ensuring accurate film application; the function of the film application auxiliary mechanism is to assist the film application material in tightly adhering to the surface of the battery cell.

[0006] A battery cell film application mechanism includes a horizontally arranged film application stand; a film application material mechanism for providing film application material on the film application stand; a film pulling mechanism for guiding the film application material; a left material picking mechanism and a right material picking mechanism for moving the battery cell on both sides of the film application stand; a film cutting mechanism for cutting the film application material; and a film application auxiliary mechanism for assisting in applying the film application material to the surface of the battery cell.

[0007] Preferably, the film-applying auxiliary mechanism includes a first cylinder disposed on the film-applying stand; and a first mounting plate that slides and cooperates with the film-applying stand from left to right; and a first slide cylinder and a second slide cylinder are disposed at intervals on the first mounting plate; and a first width roller and a second width roller are respectively connected to the slide of the first slide cylinder and the slide of the second slide cylinder.

[0008] Preferably, the film cutting mechanism includes a film cutting cylinder mounted on a film-applying stand; and the piston rod of the film cutting cylinder is connected to a film cutting knife.

[0009] Preferably, the left material handling mechanism includes a horizontally arranged motor lead screw linear module; and the motor lead screw linear module is equipped with a first rotary cylinder that reciprocates linearly in sync with it; and the piston rod of the first rotary cylinder is connected to a first gripper cylinder; the right material handling mechanism has the same structure as the left material handling mechanism.

[0010] Preferably, the film-pulling mechanism includes a second linear module located behind the film-applying stand; the second linear module is vertically arranged; a second mounting plate is provided on the slider of the second linear module, which moves up and down in sync with it; a second gripper cylinder is provided on the second mounting plate; and a third gripper cylinder connected to the film-applying stand is provided above the second gripper cylinder.

[0011] Preferably, the film-applying material mechanism includes a material roll mounting shaft mounted on a film-applying frame; a material roll is mounted on the material roll mounting shaft; and the film-applying frame is also provided with a material guide roller for guiding the material.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: The battery cell film application mechanism of this utility model includes a film application stand for horizontal placement of the entire film application mechanism, providing support and stability; a film application material mechanism for providing film application material; a film pulling mechanism for guiding and stretching the film application material to ensure its flatness and positioning; left and right material picking mechanisms for moving the battery cell to correctly cover the cell surface with the film; a film cutting mechanism for cutting the film application material to precisely cut it to the appropriate size to ensure accurate film application; and a film application auxiliary mechanism to assist in tightly adhering the film application material to the battery cell surface.

[0013] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0016] Figure 2 This is a schematic diagram of the left or right material handling mechanism of this utility model.

[0017] Figure 3 This is a schematic diagram of the film-applying auxiliary mechanism of this utility model.

[0018] Figure 4 This is a schematic diagram of the membrane stretching mechanism of this utility model.

[0019] In the diagram: 1. Film application stand; 2. Film application material mechanism; 3. Film pulling mechanism; 4. Left material handling mechanism; 5. Right material handling mechanism; 6. Film cutting mechanism; 7. Film application auxiliary mechanism; 8. First cylinder; 9. First mounting plate; 10. First slide cylinder; 11. Second slide cylinder; 12. First width roller; 13. Second width roller; 14. Film cutting cylinder; 15. Film cutting knife; 16. Motor lead screw linear module; 17. First rotary cylinder; 18. First gripper cylinder; 19. Second linear module; 20. Second mounting plate; 21. Second gripper cylinder; 22. Third gripper cylinder; 23. Material roll mounting shaft; 24. Material roll; 25. Material guide roller. Detailed Implementation

[0020] The technical solutions in the embodiments of this utility model will be clearly and completely described below. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0021] It should be noted that the terms "first," "second," etc., used in this utility model are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this disclosure described herein can be implemented in orders other than those illustrated or described herein. The implementation methods described in the following exemplary embodiments do not represent all implementation methods consistent with this disclosure.

[0022] Please see Figures 1-4 In this embodiment of the utility model, a battery cell film application mechanism includes a horizontally arranged film application stand 1; a film application material mechanism 2 for providing film application material is provided on the film application stand 1; a film pulling mechanism 3 for guiding the film application material is provided; a left material picking mechanism 4 and a right material picking mechanism 5 for moving the battery cell are respectively provided on both sides of the film application stand 1; a film cutting mechanism 6 for cutting the film application material is provided; and a film application auxiliary mechanism 7 for assisting in applying the film application material to the surface of the battery cell is provided.

[0023] Specifically, the film-applying stand 1 is used to horizontally place the entire film-applying mechanism, providing support and stability; the film-applying material mechanism 2 is a system for providing film-applying material, which can be an automatic film-winding device or a material roll storage area; the film-pulling mechanism 3 is used to guide and stretch the film-applying material, ensuring the flatness and positioning of the material; the left and right material-picking mechanisms 4 and 5 are used to move the battery cell so that the film can be correctly covered onto the surface of the battery cell; the film-cutting mechanism 6 is used to cut the film-applying material so that it can be precisely cut to the appropriate size to ensure accurate film application; the film-applying auxiliary mechanism 7 assists in tightly adhering the film-applying material to the surface of the battery cell, and can be equipped with air pressure, rolling, or heating devices, etc.

[0024] Furthermore, the film application auxiliary mechanism 7 includes a first cylinder 8 disposed on the film application stand 1; and a first mounting plate 9 that slides in cooperation with the film application stand 1 from left to right; and a first sliding cylinder 10 and a second sliding cylinder 11 are disposed on the first mounting plate 9 at intervals; and a first roller 12 and a second roller 13 are respectively connected to the slide of the first sliding cylinder 10 and the slide of the second sliding cylinder 11.

[0025] Specifically, the first cylinder 8 is mounted on the film-applying stand 1 to provide mechanical driving force, which is used to push or control the movement of the film-applying material to ensure that the film material is smoothly and evenly applied to the surface of the battery cell. The first mounting plate 9 slides left and right with the film-applying stand 1 and is the basic structure supporting the entire pneumatic system and roller assembly, allowing for precise adjustment in the left and right directions. The first slide cylinder 10 and the second slide cylinder 11 drive their corresponding slides to control the precise position of the rollers, which is used to adjust the pressure, the tightness of the film application, or the tension of the film. The use of the slide cylinders can ensure high precision and stability during the film application process. The first width roller 12 and the second width roller 13 are driven by the first slide cylinder 10 and the second slide cylinder 11, respectively, to press the film-applying material more evenly onto the surface of the battery cell. Precise control of the rollers is the key to ensuring the quality of film application and can avoid problems such as bubbles or wrinkles.

[0026] Furthermore, the film cutting mechanism 6 includes a film cutting cylinder 14 mounted on the film application stand 1; and the piston rod of the film cutting cylinder 14 is connected to a film cutting knife 15.

[0027] Specifically, the film-cutting cylinder 14 is mounted on the film-applying stand 1 and is used to drive the movement of the film-cutting blade 15. The piston rod of the cylinder can control the up-and-down or lateral movement of the film-cutting blade 15, making the film-cutting operation more precise and stable. The film-cutting blade 15 is connected to the piston rod of the film-cutting cylinder 14 and plays the role of cutting the film material. The design of the film-cutting blade 15 needs to consider the sharpness and precision of the cut and the degree of damage to the film material to ensure that each cut can produce a clean and neat film edge. The advantage of the pneumatic film-cutting mechanism 6 is that it has a fast response speed and high precision, and can perform fast and precise cutting according to the specific needs of the film, avoiding the slow speed and wear problems of mechanical blades. The control method of the film-cutting cylinder 14 can realize automated cutting, reduce manual operation, and improve production efficiency.

[0028] Furthermore, the left material handling mechanism 4 includes a horizontally arranged motor lead screw linear module 16; and the motor lead screw linear module 16 is provided with a first rotary cylinder 17 that reciprocates linearly with it in sync; and the piston rod of the first rotary cylinder 17 is connected to a first gripper cylinder 18; the right material handling mechanism 5 has the same structure as the left material handling mechanism 4.

[0029] Specifically, the motor lead screw linear module 16, horizontally positioned, provides electric drive force to propel the entire material handling system in linear reciprocating motion. The lead screw linear module has high-precision positioning capabilities, ensuring the battery cell is accurately positioned during material handling, avoiding deviations or collisions. A first rotary cylinder 17 is mounted on the motor lead screw linear module 16, reciprocating synchronously with the motor lead screw. The rotary cylinder is responsible for rotating the battery cell, allowing the gripper cylinder to accurately grasp the battery cell at different angles or positions. The piston rod of the rotary cylinder controls the rotation of the battery cell, typically related to the feeding direction and positional accuracy of the battery cell. A first gripper cylinder 18 is connected to the piston rod of the first rotary cylinder 17, responsible for gripping the battery cell. The shape and pressure of the gripper need to match the size and shape of the battery cell to avoid damage or unstable gripping. The stroke and precision of the gripper cylinder ensure reliable gripping of the battery cell. The left material handling mechanism 4 clamps the battery cell and applies a film to one side, then transfers the battery cell to the right material handling mechanism 5, applying a film to the other side.

[0030] Furthermore, the film-stretching mechanism 3 includes a second linear module 19 located behind the film-stretching stand 1; the second linear module 19 is vertically arranged; and the slider of the second linear module 19 is provided with a second mounting plate 20 that moves up and down synchronously with it; and the second mounting plate 20 is provided with a second gripper cylinder 21; and above the second gripper cylinder 21 is a third gripper cylinder 22 connected to the film-stretching stand 1.

[0031] Specifically, the second linear module 19 is located behind the film-applying stand 1. The vertically mounted second linear module 19 provides up-and-down reciprocating motion. The slider of the film-stretching mechanism 3 moves along the vertical track, ensuring that the film material can be precisely stretched and positioned in the vertical direction. The second mounting plate 20 is mounted on the slider of the second linear module 19 and moves up and down synchronously with the slider. The second mounting plate 20 serves as a support platform, supporting the gripper cylinder and other components it works with, ensuring the stability and accuracy of the entire film-stretching process. The second gripper cylinder 21 is mounted on the second mounting plate 20 and is responsible for gripping and fixing the film material. The second gripper cylinder 21 precisely... Controlling the clamping force ensures that the membrane material does not slip or tear during stretching, guaranteeing the flatness and quality of the film application. The third clamping cylinder 22 is located above the second clamping cylinder 21 and is connected to the film application stand 1. The third clamping cylinder 22 works in conjunction with the second clamping cylinder 21 for additional membrane material clamping or position adjustment. During the stretching of the membrane material, the third clamping cylinder 22 can provide additional clamping force or precisely adjust the direction of the membrane to prevent deviations in the membrane material during operation. After the previous cell is filmed and cut, the second clamping cylinder 21 can move upward to clamp the membrane and pull it downward, thereby performing the film application step for the next cell.

[0032] Furthermore, the film application material mechanism 2 includes a material roll mounting shaft 23 mounted on the film application stand 1; and a material roll 24 is mounted on the material roll mounting shaft 23; and the film application stand 1 is also provided with a material guide roller 25 for guiding the material.

[0033] Specifically, the roll mounting shaft 23 is mounted on the film application stand 1 to support and mount the film application material roll 24. The roll mounting shaft 23 typically has good load-bearing capacity and stability, ensuring that large-sized film rolls can be smoothly placed and rotated. Through rotation, the roll 24 can provide a continuous supply of film material to meet the production line's material requirements. The film roll 24 mounted on the roll mounting shaft 23 is typically a large roll of film application material. Depending on production needs, the size, thickness, and material of the film roll 24 may vary. The stability and tension control of the roll 24 are crucial, ensuring that the film material does not loosen or slip during the entire production process. The material guide roller 25, mounted on the film application stand 1, is used to ensure that the film material maintains the correct orientation during supply. The guide roller's function is to guide the film material to the correct path, preventing the film material from shifting or tangling during transport. The guide roller typically needs to have appropriate surface friction to prevent the film material from slipping, ensuring its flatness and stability during transport.

[0034] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention.

Claims

1. A battery cell film bonding mechanism, characterized in that, The device includes a horizontally arranged film-applying stand (1); a film-applying material mechanism (2) for providing film-applying material on the film-applying stand (1); a film-pulling mechanism (3) for guiding the film-applying material; a left material-picking mechanism (4) and a right material-picking mechanism (5) for moving the battery cell on both sides of the film-applying stand (1); a film-cutting mechanism (6) for cutting the film-applying material; and a film-applying auxiliary mechanism (7) for assisting in applying the film-applying material to the surface of the battery cell.

2. The cell film bonding mechanism according to claim 1, characterized in that, The film application auxiliary mechanism (7) includes a first cylinder (8) mounted on the film application stand (1); and a first mounting plate (9) that slides and cooperates with the film application stand (1) from left to right; and a first sliding cylinder (10) and a second sliding cylinder (11) are spaced apart on the first mounting plate (9); and a first slide cylinder (12) and a second slide cylinder (13) are respectively connected to the slide of the first slide cylinder (10) and the slide of the second slide cylinder (11).

3. The cell film bonding mechanism according to claim 1, characterized in that, The film cutting mechanism (6) includes a film cutting cylinder (14) mounted on the film application stand (1); and the piston rod of the film cutting cylinder (14) is connected to a film cutting knife (15).

4. The cell film bonding mechanism according to claim 1, characterized in that, The left material handling mechanism (4) includes a horizontally arranged motor lead screw linear module (16); and the motor lead screw linear module (16) is equipped with a first rotary cylinder (17) that moves linearly and reciprocally in sync with it; and the piston rod of the first rotary cylinder (17) is connected to a first gripper cylinder (18); the right material handling mechanism (5) has the same structure as the left material handling mechanism (4).

5. A cell film bonding mechanism according to claim 1, characterized in that, The film-pulling mechanism (3) includes a second linear module (19) located behind the film-applying stand (1); the second linear module (19) is vertically arranged; and the slider of the second linear module (19) is provided with a second mounting plate (20) that moves up and down synchronously with it; and the second mounting plate (20) is provided with a second gripper cylinder (21); and the second gripper cylinder (21) is provided with a third gripper cylinder (22) connected to the film-applying stand (1) above it.

6. The cell film bonding mechanism according to claim 1, characterized in that, The film application material mechanism (2) includes a material roll mounting shaft (23) on the film application stand (1); and a material roll (24) is mounted on the material roll mounting shaft (23); and the film application stand (1) is also provided with a material guide roller (25) for guiding the material.