Battery diaphragm pressing device
The battery diaphragm laminating device addresses the issue of inconsistent compaction force and thickness by using an adjustable mechanism with dual-axis motor and buffer pads, ensuring precise thickness control and wrinkle-free lamination.
Patent Information
- Application Number
- CN202420955044.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-06
- Publication Date
- 2024-12-27
- Estimated Expiration
- 2034-05-06
AI Technical Summary
Existing battery separator devices lack the ability to control compaction force and produce batteries with varying separator thicknesses according to different lithium battery needs.
A battery diaphragm laminating device with an adjustment mechanism that adjusts the distance between pressing rollers, utilizing a dual-axis motor, worm, and worm gear system to accommodate varying thicknesses, and incorporates buffer pads with opposite thread directions to prevent wrinkling.
Enables precise control of separator thickness and prevents wrinkling during the lamination process, enhancing production quality and flexibility.
Smart Images
Figure CN222245764U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of battery diaphragm lamination, in particular to a battery diaphragm lamination device. Background Art
[0002] The battery separator is a key separator material between the positive and negative electrodes of the battery. It plays a vital role in the battery. Its main function is to isolate the positive and negative electrodes, prevent the electrons in the battery from passing freely, and allow the ions in the electrolyte to pass freely between the positive and negative electrodes. Therefore, the battery separator has a direct impact on the safety and cost of the battery.
[0003] The existing Chinese patent "A membrane compacting device for lithium-ion battery membrane manufacturing process" with announcement number CN208835211U proposes a device that can well control the compaction strength of the battery membrane and can produce battery membranes with different membrane thicknesses according to actual production needs.
[0004] This solution solves the technical problem that the compaction force of the battery separator cannot be controlled and there is no way to produce batteries with different separator thicknesses according to the needs of different lithium batteries. At the same time, we propose a new technical solution to solve this problem. Utility Model Content
[0005] The utility model aims to solve the shortcomings in the prior art and proposes a battery diaphragm laminating device.
[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:
[0007] A battery diaphragm laminating device comprises a mounting plate, a fixing frame is fixed on the top of the mounting plate, a first pressing roller is installed inside the fixing frame, an adjusting mechanism is fixed on the bottom of the mounting plate, the adjusting mechanism passes through the mounting plate, a second pressing roller is rotatably connected to the adjusting mechanism, and the adjusting mechanism is used to adjust the distance between the first pressing roller and the second pressing roller.
[0008] Preferably, the number of the first pressing rollers is two groups, and the two groups of the first pressing rollers are rotatably connected to the fixing frame.
[0009] Preferably, buffer pads are sleeved on both sides of the second pressure roller, and the threads on the buffer pads have opposite rotation directions.
[0010] Preferably, the adjustment mechanism includes a shell fixed to the bottom of the mounting plate, a dual-axis motor is installed inside the shell, a worm is installed on the output shaft of the dual-axis motor, both ends of the shell are rotatably connected to a rotating shaft, a worm gear is fixedly sleeved on the rotating shaft, the rotating shaft passes through the mounting plate and is connected to a threaded column, a threaded sleeve is threadedly connected to the threaded column, and a connecting block is fixed on the threaded sleeve.
[0011] Preferably, the worm wheel and the worm are meshingly driven, the second pressure roller is located between two connecting blocks, and the second pressure roller is rotationally connected to the connecting blocks.
[0012] Compared with the prior art, the beneficial effects of the utility model are:
[0013] The utility model provides an adjustment mechanism, which is used to adjust the distance between the first pressing roller and the second pressing roller, and the adjustment is performed according to the thickness of the produced pressed film. The device has a simple structure and is very convenient to use. At the same time, buffer sleeves with opposite thread rotation directions are provided on both sides of the second pressing roller. In the continuous pressing process, stable pulling force is added to both sides of the diaphragm to avoid wrinkles on the diaphragm. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 This is a structural schematic diagram of a battery diaphragm laminating device proposed by the utility model;
[0015] Figure 2 for Figure 1 A front cross-sectional view of
[0016] Figure 3 for Figure 1 Installation diagram of the first roller.
[0017] In the figure: 1 mounting plate, 2 fixing frame, 3 first pressing roller, 4 adjusting mechanism, 41 housing, 42 dual-axis motor, 43 worm, 44 rotating shaft, 45 worm wheel, 46 threaded column, 47 threaded sleeve, 48 connecting block, 5 second pressing roller. DETAILED DESCRIPTION
[0018] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.
[0019] Reference Figure 1-3A battery diaphragm laminating device comprises a mounting plate 1, a fixing frame 2 is fixed on the top of the mounting plate 1, a first pressing roller 3 is installed inside the fixing frame 2, the number of the first pressing roller 3 is two groups, the two groups of first pressing rollers 3 are rotatably connected to the fixing frame 2, an adjusting mechanism 4 is fixed at the bottom of the mounting plate 1, the adjusting mechanism 4 runs through the mounting plate 1, a second pressing roller 5 is rotatably connected to the adjusting mechanism 4, buffer pads are sleeved on both sides of the second pressing roller 5, the threads on the buffer pads are rotated in opposite directions, the adjusting mechanism 4 is used to adjust the distance between the first pressing roller 3 and the second pressing roller 5, the adjusting mechanism 4 comprises a shell 41 fixed to the bottom of the mounting plate 1, a double-axis motor 42 is installed inside the shell 41, a worm 43 is installed on the output shaft of the double-axis motor 42, and the shell 41 has a Both ends are rotatably connected with a rotating shaft 44, on which a worm gear 45 is fixedly sleeved, the rotating shaft 44 passes through the mounting plate 1 and is connected with a threaded column 46, on which a threaded sleeve 47 is threadedly connected, on which a connecting block 48 is fixed, the worm gear 45 and the worm 43 are meshingly driven, the second pressing roller 5 is located between the two connecting blocks 48, and the second pressing roller 5 is rotatably connected to the connecting block 48, and an adjusting mechanism is provided to adjust the distance between the first pressing roller and the second pressing roller by means of the adjusting mechanism, and the adjustment is performed according to the thickness of the pressed film produced, the device has a simple structure and is very convenient to use, and at the same time, buffer sleeves with opposite threaded directions are provided on both sides of the second pressing roller, and during the continuous process, a stable pulling force is added to both sides of the diaphragm to avoid wrinkles on the diaphragm.
[0020] When in use, the mounting plate 1 is fixed to the workplace by bolts, and then the device is connected to a power source. The diaphragm that needs to be pressed passes between the first pressing roller 3 and the second pressing roller 5, and then the dual-axis motor 42 is started. The output shaft of the dual-axis motor 42 drives the worm 43 to rotate, and the worm 43 drives the rotating shaft 44 to rotate through the threaded transmission with the worm wheel 45. The rotating shaft 44 drives the threaded column 46 to rotate, and the threaded column 46 drives the connecting block 48 through the threaded transmission with the threaded sleeve 47. The connecting blocks 48 on both sides drive the second pressing roller 5 to move, and the distance between the second pressing roller 5 and the first pressing roller 3 is adjusted according to the required thickness of the diaphragm. The device has a simple structure and is very flexible in use. During the movement of the diaphragm, the first pressing roller 3 and the second pressing roller 5 rotate with the diaphragm. At this time, in the second pressing roller 5, the threads on the two buffer sleeves rotate in opposite directions, providing stable pulling force on both sides of the diaphragm, which can effectively avoid wrinkles on the diaphragm and improve the production quality of the diaphragm.
[0021] To sum up, compared with the prior art, the utility model provides an adjustment mechanism, which is used to adjust the distance between the first pressure roller and the second pressure roller, and adjusts the distance according to the thickness of the produced pressure film. The device has a simple structure and is very convenient to use. At the same time, buffer sleeves with opposite thread rotation directions are provided on both sides of the second pressure roller. During the continuous process, stable pulling force is added on both sides of the diaphragm to avoid wrinkles on the diaphragm.
[0022] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.
Claims
1. A battery diaphragm laminating device, comprising a mounting plate (1), characterized in that: A fixing frame (2) is fixed on the top of the mounting plate (1), a first pressing roller (3) is installed inside the fixing frame (2), an adjusting mechanism (4) is fixed on the bottom of the mounting plate (1), the adjusting mechanism (4) passes through the mounting plate (1), a second pressing roller (5) is rotatably connected to the adjusting mechanism (4), and the adjusting mechanism (4) is used to adjust the distance between the first pressing roller (3) and the second pressing roller (5).
2. A battery diaphragm laminating device according to claim 1, characterized in that: The number of the first pressing rollers (3) is two groups, and both groups of the first pressing rollers (3) are rotatably connected to the fixed frame (2).
3. A battery diaphragm laminating device according to claim 1, characterized in that: Buffer pads are sleeved on both sides of the second pressing roller (5), and the threads on the buffer pads have opposite rotation directions.
4. A battery diaphragm laminating device according to claim 1, characterized in that: The adjusting mechanism (4) comprises a housing (41) fixed to the bottom of the mounting plate (1), a dual-axis motor (42) being installed inside the housing (41), a worm (43) being installed on the output shaft of the dual-axis motor (42), a rotating shaft (44) being rotatably connected at both ends inside the housing (41), a worm wheel (45) being fixedly sleeved on the rotating shaft (44), the rotating shaft (44) passing through the mounting plate (1) and being connected to a threaded column (46), a threaded sleeve (47) being threadedly connected to the threaded column (46), and a connecting block (48) being fixed on the threaded sleeve (47).
5. A battery diaphragm laminating device according to claim 4, characterized in that: The worm wheel (45) and the worm (43) are in meshing transmission, the second pressing roller (5) is located between two connecting blocks (48), and the second pressing roller (5) and the connecting block (48) are rotatably connected.