A mechanism for a lithium battery cell winder

Abstract

This invention discloses a mechanism for a lithium battery cell winding machine, comprising a base plate and a top plate fixed above it. A slide rail is provided on the upper surface of the base plate, and a feeding cylinder frame, controlled by a sliding cylinder on one side, is connected to the slide rail. The feeding cylinder frame houses a feeding cylinder, and its outer side is equipped with several feeding flattening grippers controlled by the feeding cylinder. Both the top plate and the base plate are connected to a fixed plate. A lifting module, controlled by an outer lifting cylinder, is located inside the fixed plate. The lifting module is connected to a parallel clamping cylinder frame containing parallel clamping cylinders. On the opposite side of the parallel clamping cylinder frame are several electrode-folding grippers controlled by corresponding parallel clamping cylinders. One of the electrode-folding grippers houses an energized electrode plate. This mechanism integrates cell flattening, short-circuit testing, electrode folding, and feeding functions simultaneously, saving more operating space. The operation of each function is well-connected and does not interfere with each other's operation, thus improving the overall processing speed and efficiency.

Description

Technical Field

[0001] This invention relates to the field of battery cell processing technology, specifically to a mechanism for a lithium battery cell winding machine. Background Technology

[0002] Lithium-ion batteries are a type of battery that uses lithium metal or lithium alloys as the positive / negative electrode materials and a non-aqueous electrolyte solution. Due to the highly reactive chemical properties of lithium metal, its processing, storage, and use require very strict environmental control. With the development of science and technology, lithium-ion batteries have become mainstream. Lithium-ion battery processing typically involves separate workstations; it's rare for a single workstation to handle multiple different operations. This often results in a large number of workstations required throughout the processing, occupying significant space and leading to low efficiency. Summary of the Invention

[0003] In order to overcome the shortcomings of existing technical solutions, the present invention provides a mechanism for a lithium battery cell winding machine, which can effectively solve the problems mentioned in the background art.

[0004] The technical solution adopted by this invention to solve its technical problem is:

[0005] A mechanism for a lithium battery cell winding machine includes a base plate and a top plate fixed above it. The upper surface of the base plate is provided with a slide rail, and a feeding cylinder frame controlled by a sliding cylinder on one side is connected to the slide rail. The feeding cylinder frame houses a feeding cylinder, and its outer side is provided with several feeding and flattening grippers controlled by the feeding cylinder. Both the top plate and the base plate are connected to a fixed plate. The inner side of the fixed plate is provided with a lifting module controlled by an outer lifting cylinder. The lifting module is connected to a parallel clamping cylinder frame housing a parallel clamping cylinder. On the opposite side of the parallel clamping cylinder frame are several electrode-folding grippers controlled by corresponding parallel clamping cylinders. One of the electrode-folding grippers houses an energized electrode plate.

[0006] Furthermore, a number of support rods are provided between the top plate and the bottom plate for support and fixation, and the sliding cylinder is fixed to the side of the support rods.

[0007] Furthermore, the slide rail is a V-shaped slide rail.

[0008] Furthermore, the material feeding and flattening gripper is positioned between the top plate and the bottom plate and moves.

[0009] Furthermore, both the top plate and the bottom plate are equipped with motion cylinders to control their up-and-down movement.

[0010] Furthermore, the top plate is equipped with a solenoid valve assembly.

[0011] Compared with the prior art, the beneficial effects of the present invention are:

[0012] This invention integrates functions such as cell flattening, short-circuit testing, tab bending, and material feeding into a single mechanism, saving more operating space. The operation of each function is well connected and does not affect the operation of each other, thus improving the overall processing speed and efficiency. The overall structure is simple, easy to operate, and highly practical. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0014] Numbering on the map:

[0015] 1-Base plate, 2-Top plate, 3-Slide rail, 4-Sliding cylinder, 5-Unloading cylinder frame, 6-Unloading cylinder, 7-Unloading pinching gripper, 8-Fixing plate, 9-Lifting cylinder, 10-Lifting module, 11-Parallel clamping cylinder, 12-Parallel clamping cylinder frame, 13-Folding electrode gripper, 14-Electrified electrode plate, 15-Support rod, 16-Motion cylinder, 17-Solenoid valve assembly. Detailed Implementation

[0016] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0017] like Figure 1 As shown, the present invention provides a mechanism for a lithium battery cell winding machine, including a base plate 1 and a top plate 2 fixed above it. A slide rail 3 is provided on the upper surface of the base plate 1, and a feeding cylinder frame 5, controlled by a sliding cylinder 4 on one side, is connected to the slide rail 3. A feeding cylinder 6 is installed inside the feeding cylinder frame 5, and several feeding pinching grippers 7 controlled by the feeding cylinder 6 are provided on the outer side. A fixed plate 8 is connected to both the top plate 2 and the base plate 1, and an outer lifting cylinder is provided on the inner side of the fixed plate 8. The lifting module 10 is controlled by 9. The lifting module 10 is connected to the parallel clamping cylinder frame 12, which is equipped with parallel clamping cylinders 11. On one side of the parallel clamping cylinder frame 12, several folding tab grippers 13 controlled by the corresponding parallel clamping cylinders 11 are connected. One of the folding tab grippers 13 has an internal energized electrode plate 14. Specifically, this mechanism is mainly used on lithium battery cell winding machines, usually for one of the processing steps. It integrates cell flattening, short circuit testing, tab folding and unloading functions.

[0018] A plurality of support rods 15 are provided between the top plate 2 and the bottom plate 1 for support and fixation. The sliding cylinder 4 is fixed to the side of the support rod 15. The support rod 15 is used to fix the top plate 2 and the bottom plate 1 to form a fixed height, thereby achieving the effect of support and fixation.

[0019] The slide rail 3 is a V-shaped slide rail. The V-shaped slide rail structure can enhance the linear contact between the roller and the guide rail, resulting in low friction, high transmission speed, low noise, and high precision.

[0020] The feeding and flattening gripper 7 is located between the top plate 2 and the bottom plate 1 and moves between them. The feeding and flattening gripper 7 is used to flatten the battery cell. Since the mechanism needs to continue to complete the operation of bending the electrode and testing the electrode after flattening the battery cell, the feeding and flattening gripper 7 needs to move backward to the position between the top plate 2 and the bottom plate 1 after the flattening of the battery cell is completed.

[0021] Both the top plate 2 and the bottom plate 1 are equipped with motion cylinders 16 for controlling the up and down movement. There are two motion cylinders 16, which are fixed at the top plate 1 and the bottom plate 2 respectively, and are used to jointly propel the mechanism up and down to adjust the position of the folding electrode clamp 13 and the detection electrode.

[0022] The top plate 2 is equipped with a solenoid valve assembly 17, which consists of multiple solenoid valve units and can control the stability of the overall operation.

[0023] Compared with traditional technologies, this technical solution integrates functions such as cell flattening, short-circuit testing, electrode tab bending, and material feeding into one mechanism, saving more operating space. The operation of each function is well connected and does not affect each other's operation, thus improving the overall processing speed and efficiency.

[0024] Working principle: During the processing, after the front end of the battery cell is wound, the sliding cylinder 4 controls the unloading cylinder 6 on the slide rail 3 to deliver the battery cell. The unloading cylinder 6 drives the unloading flattening jaws 7 to clamp the battery cell and unload it. After the winding needle of the front battery cell is completely withdrawn, the unloading cylinder 6 increases the pressure of the unloading flattening jaws 7 to flatten the battery cell. The sliding cylinder 4 controls the unloading cylinder 6 to move backward and return to its original position. Next, the upper and lower movement cylinders 16 control the mechanism to move towards the electrode conveyor end. After reaching the preset position, the parallel clamping cylinder 11 drives the folding electrode jaws 13 to move to the middle position to clamp the battery cell electrode and complete the folding electrode function. At the same time, the energized electrode plate 14 in the folding electrode jaws 13 is energized to start the short circuit test and completes the short circuit test during the rotation and station change process. Finally, the battery cell is unloaded onto the conveyor belt at another station.

[0025] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A mechanism for a lithium battery cell winding machine, characterized in that: The device includes a base plate and a top plate fixed above it. The upper surface of the base plate is provided with a slide rail, and a feeding cylinder frame controlled by a sliding cylinder on one side is connected to the slide rail. The feeding cylinder frame is equipped with a feeding cylinder inside, and several feeding pinching claws controlled by the feeding cylinder are provided on the outside. Both the top plate and the base plate are connected to a fixed plate. The inner side of the fixed plate is provided with a lifting module controlled by an outer lifting cylinder. The lifting module is connected to a parallel clamping cylinder frame containing a parallel clamping cylinder inside. Several folding electrode claws controlled by corresponding parallel clamping cylinders are connected to the opposite side of the parallel clamping cylinder frame. One of the folding electrode claws has an internal energized electrode plate.

2. The mechanism for a lithium battery cell winding machine according to claim 1, characterized in that: Several support rods are provided between the top plate and the bottom plate for support and fixation, and the sliding cylinder is fixed to the side of the support rods.

3. The mechanism for a lithium battery cell winding machine according to claim 1, characterized in that: The slide rail is a V-shaped slide rail.

4. The mechanism for a lithium battery cell winding machine according to claim 1, characterized in that: The material feeding and flattening gripper is located between the top plate and the bottom plate and moves.

5. The mechanism for a lithium battery cell winding machine according to claim 1, characterized in that: Both the top plate and the bottom plate are equipped with motion cylinders to control their up-and-down movement.

6. The mechanism for a lithium battery cell winding machine according to claim 1, characterized in that: The top plate is equipped with a solenoid valve assembly.

Images