Battery cell squashing mechanism
By designing a cell flattening mechanism that coordinates multi-layer belts and robotic arms, the problems of low production efficiency and insufficient flattening time in existing technologies have been solved, achieving a highly efficient cell flattening process.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DONGGUAN ARECONN PRECISION MACHINERY CO LTD
- Filing Date
- 2025-07-17
- Publication Date
- 2026-07-14
Smart Images
Figure CN224501941U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of lithium battery manufacturing technology, specifically to a cell flattening mechanism. Background Technology
[0002] Currently, lithium-ion battery cells consist of positive electrode plates, negative electrode plates, and separators. There are generally two manufacturing processes for lithium-ion battery cells: winding and stacking. The stacking process involves neatly stacking the positive and negative electrode plates and separators layer by layer to form a cell. After the cells are stacked, they need to be planar extruded under specific temperature and pressure conditions to bond the positive and negative electrode plates and separators together, preventing the electrode plates from separating during transportation.
[0003] In existing technologies, battery cell flattening mechanisms typically employ a separate flattening chamber. A robotic arm handles the battery cells to the flattening chamber, where they are then flattened by heating the upper and lower pressure plates. This method is inefficient, and to ensure the flattening effect, a relatively long flattening time is usually required. However, in order to improve production efficiency, the need for a longer flattening time for battery cells is often not met. Utility Model Content
[0004] The purpose of this invention is to overcome the shortcomings of the prior art and provide a battery cell flattening mechanism that can not only ensure production efficiency but also meet the requirement of a longer flattening time for battery cells.
[0005] The technical solution of this utility model is as follows:
[0006] A battery cell flattening mechanism includes a feeding belt, a buffer lifting device, a transfer robot, a feeding lifting device, a flattening device, a discharging lifting device, and a discharging belt arranged sequentially along the feeding and discharging directions. The buffer lifting device stores the battery cells transported on the feeding belt by lifting. The transfer robot is used to transfer the battery cells on the buffer lifting device to the feeding lifting device. The feeding lifting device lifts the battery cells to the flattening station height of the flattening device and transfers them to the flattening device for flattening. The discharging lifting device receives the flattened battery cells from the flattening station height of the flattening device by lifting and transfers them to the discharging belt for unloading.
[0007] Furthermore, the buffer lifting device includes a buffer lifting module and several layers of buffer belts that are movably disposed on the buffer lifting module and distributed sequentially from top to bottom.
[0008] Furthermore, the buffer belt has three layers from top to bottom.
[0009] Furthermore, the feeding lifting device includes a feeding lifting module and several layers of feeding lifting belts that are movably arranged on the feeding lifting module from top to bottom and correspond to the buffer belt. A transfer robot is provided between each layer of buffer belt and the feeding lifting belt.
[0010] Furthermore, the feeding lifting belt has three layers from top to bottom.
[0011] Furthermore, the flattening device is provided with several layers of flattening stations corresponding to the feeding lifting belt from top to bottom.
[0012] Furthermore, the flattening device includes a support, a flattening motor, a hot and cold pressing plate transmission structure, a pressure controller, several layers of hot and cold pressing plates, and several pressure cylinders. Each flattening station is equipped with hot and cold pressing plates and pressure cylinders. The flattening motor, the hot and cold pressing plate transmission structure, and the pressure controller are mounted on the support. The flattening motor is connected to the several layers of hot and cold pressing plates through the hot and cold pressing plate transmission structure.
[0013] Furthermore, the flattening station has three layers from top to bottom.
[0014] Furthermore, the discharge lifting device includes a discharge lifting module and a discharge lifting belt movably mounted on the discharge lifting module.
[0015] Compared with the prior art, the beneficial effects of this utility model are as follows: This utility model sets up a feeding lifting device, a transfer robot, and a buffer lifting device between the flattening device and the feeding belt, and a discharge lifting device between the flattening device and the discharge belt. The incoming material from the feeding belt is stored through the buffer belt, and then the transfer robot grabs the battery cells stored on the buffer belt and transfers them to the feeding lifting device. The feeding lifting device carries the battery cells to the flattening station height of the flattening device. After flattening, the discharge lifting device carries the battery cells to the discharge belt for unloading. The working mode of this battery cell flattening mechanism can not only ensure production efficiency, but also meet the requirements of a longer flattening time for battery cells. Attached Figure Description
[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model, 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.
[0017] Figure 1 A three-dimensional structural diagram of a battery cell flattening mechanism provided by this utility model;
[0018] Figure 2A planar structural diagram of a battery cell flattening mechanism provided by this utility model. Detailed Implementation
[0019] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.
[0020] To illustrate the technical solution described in this utility model, specific embodiments are described below.
[0021] Example
[0022] Please see Figure 1 , Figure 2 This embodiment provides a battery cell flattening mechanism, including a feeding belt 1, a buffer lifting device 2, a transfer robot 3, a feeding lifting device 4, a flattening device 5, a discharge lifting device 6, and a discharge belt 7 arranged sequentially along the feeding and discharging direction. The buffer lifting device 2 stores the battery cells transported on the feeding belt 1 by lifting. The transfer robot 3 is used to transfer the battery cells on the buffer lifting device 2 to the feeding lifting device 4. The feeding lifting device 4 lifts the battery cells to the flattening station height of the flattening device 5 and transfers them to the flattening device 5 for flattening. The discharge lifting device 6 receives the flattened battery cells from the flattening station height of the flattening device 5 by lifting and transfers them to the discharge belt 7 for unloading.
[0023] Specifically, the buffer lifting device 2 includes a buffer lifting module 21 and several layers of buffer belts 22 movably disposed on the buffer lifting module 21 and distributed sequentially from top to bottom. The layers of buffer belts 22 are driven to move up and down by the buffer lifting module 21. During normal operation, the buffer belts 11 are at the same height as the feed belts 1 under the action of the buffer lifting module 21. When there is too much material coming into the feed belts 1 and buffering is required, the buffer belts 22, after receiving the material, move above or below the feed belts 1 under the action of the buffer lifting module 21 to achieve the purpose of storage.
[0024] In this embodiment, the buffer belt 22 has three layers from top to bottom. The upper and lower layers of the buffer belt 22 can be used for battery cell storage. Of course, the number of layers of the buffer belt 22 is not limited thereto.
[0025] Among them, the transfer robot 3 is provided with three corresponding to the three-layer buffer belt 22. The battery cells on the buffer belt 22 can be vacuum adsorbed and transferred to the feeding lifting device 4 by the transfer robot 3.
[0026] Specifically, the feeding lifting device 4 includes a feeding lifting module 41 and several layers of feeding lifting belts 42 corresponding to the buffer belt 22, which are movably arranged on the feeding lifting module 41 from top to bottom. The several feeding lifting belts 42 are driven to move up and down by the feeding lifting module 41.
[0027] In this embodiment, the feeding lifting belt 42 has three layers from top to bottom, which correspond one-to-one with the number of layers of the buffer belt 22. Of course, this does not limit the number of layers of the feeding lifting belt 42.
[0028] Specifically, the flattening device 5 has several flattening stations corresponding to the feeding lifting belt 62 arranged sequentially from top to bottom. The flattening device 5 includes a support 51, a flattening motor 52, a hot and cold pressing plate transmission structure 53, a pressure controller 54, several layers of hot and cold pressing plates 55, and several pressure cylinders 56. Each flattening station has hot and cold pressing plates 55 and pressure cylinders 56 arranged vertically. The flattening motor 52, the hot and cold pressing plate transmission structure 53, and the pressure controller 54 are mounted on the support 51. The flattening motor 52 is connected to the several layers of hot and cold pressing plates 55 through the hot and cold pressing plate transmission structure 53. During flattening, the flattening motor 52 drives the several layers of hot and cold pressing plates 55 to move up and down through the hot and cold pressing plate transmission structure 53, and combines with the pressure cylinders 56 to flatten the battery cell. The pressure controller 54 can control the flattening pressure.
[0029] In this embodiment, the flattening station has three layers from top to bottom, which correspond one-to-one with the number of layers of the feeding lifting belt 42. Of course, this does not limit the number of layers of the flattening station.
[0030] The multi-layer design of the buffer belt 22, the feeding lifting belt 42, and the flattening station ensures production efficiency and meets the requirement of a longer flattening time for battery cells.
[0031] Specifically, the discharge lifting device 6 includes a discharge lifting module 61 and a discharge lifting belt 62 movably mounted on the discharge lifting module 61. The discharge lifting belt 62 moves up and down driven by the discharge lifting module 61. After a flattening station has completed the flattening operation, the discharge lifting belt 62 can rise to the height of the corresponding flattening station under the action of the discharge lifting module 61, and then receive the flattened battery cells.
[0032] Its working principle is as follows:
[0033] 1. At the beginning of operation, the feeding belt 1 transports the battery cells to the buffer belt 22, and the battery cells on the buffer belt 22 are transferred to the feeding lifting belt 42 by the transfer robot 3;
[0034] 2. The feeding lifting module 41 drives the feeding lifting belt 42 to move to the height of the corresponding flattening station. The feeding lifting belt 42 then transports the battery cell to the flattening station. After the flattening station is filled with battery cells, the cells are flattened. The discharging lifting module 61 drives the discharging lifting belt 62 to move to the height of the corresponding flattening station to wait for the flattened battery cells to be received.
[0035] 3. When the flattening station is under continuous pressure, the buffer lifting module 21 drives the buffer belt 22 to move up and down, storing the battery cells transported by the feed belt 1 onto the buffer belt 22.
[0036] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A battery cell flattening mechanism, characterized in that: The device includes a feeding belt, a buffer lifting device, a transfer robot, a feeding lifting device, a flattening device, a discharging lifting device, and a discharging belt arranged sequentially along the feeding and discharging directions. The buffer lifting device stores the battery cells transported from the feeding belt by lifting. The transfer robot is used to transfer the battery cells from the buffer lifting device to the feeding lifting device. The feeding lifting device lifts the battery cells to the flattening station height of the flattening device and transfers them to the flattening device for flattening. The discharging lifting device lifts the flattened battery cells from the flattening station height of the flattening device and transfers them to the discharging belt for unloading.
2. The cell flattening mechanism according to claim 1, characterized in that: The buffer lifting device includes a buffer lifting module and several layers of buffer belts that are movably arranged on the buffer lifting module and distributed from top to bottom.
3. The cell flattening mechanism according to claim 2, characterized in that: The buffer belt has three layers from top to bottom.
4. The cell flattening mechanism according to claim 2, characterized in that: The feeding lifting device includes a feeding lifting module and several layers of feeding lifting belts that are movably arranged on the feeding lifting module from top to bottom and correspond to the buffer belt. A transfer robot is provided between each layer of buffer belt and the feeding lifting belt.
5. A cell flattening mechanism according to claim 4, characterized in that: The feeding lifting belt has three layers from top to bottom.
6. The cell flattening mechanism according to claim 4, characterized in that: The flattening device has several layers of flattening stations from top to bottom, corresponding to the feeding lifting belt.
7. A cell flattening mechanism according to claim 6, characterized in that: The flattening device includes a support frame, a flattening motor, a hot and cold pressing plate transmission structure, a pressure controller, several layers of hot and cold pressing plates, and several pressure cylinders. Each flattening station is equipped with hot and cold pressing plates and pressure cylinders. The flattening motor, the hot and cold pressing plate transmission structure, and the pressure controller are mounted on the support frame. The flattening motor is connected to the several layers of hot and cold pressing plates through the hot and cold pressing plate transmission structure.
8. A cell flattening mechanism according to claim 6, characterized in that: The flattening station has three layers from top to bottom.
9. A cell flattening mechanism according to claim 1, characterized in that: The discharge lifting device includes a discharge lifting module and a discharge lifting belt movably mounted on the discharge lifting module.