Hole ironing and rubbing integrated mechanism for cylindrical battery cell

Abstract

The utility model relates to a cylindrical cell hole ironing and rubbing integrated mechanism which comprises a rubbing and feeding device and a cell, the rubbing and feeding device comprises a positive tab rubbing and feeding device and a negative tab rubbing and feeding device which are symmetrically arranged, and the cell is positioned between the positive tab rubbing and feeding device and the negative tab rubbing and feeding device; a heating module is arranged on the left side of the positive tab rubbing and feeding device, a hole ironing needle is movably mounted in the heating module, and the left side of the hole ironing needle is in power connection with a driving device; the utility model has the advantages that the structure is reasonable, the problem of poor center holes is solved, the assembly process actions are reduced, and the assembly efficiency is improved.

Description

Technical Field

[0001] This utility model belongs to the field of cylindrical battery cell technology, specifically relating to an integrated mechanism for hot-drilling and flattening cylindrical battery cells. Background Technology

[0002] Currently, existing flattening mechanisms use a motor to drive the flattening wheel to rotate, while a servo motor moves back and forth to ensure the exposed length of the tabs and the compaction of the tabs after flattening. However, during production, defects may occur, such as the flattening center needle getting caught in the diaphragm inside the center hole of the wound bare battery cell, damaging the inner ring electrode, or the tabs entering the battery cell through the center hole and puncturing the diaphragm. Therefore, it is very necessary to provide a cylindrical battery cell hot hole flattening integrated mechanism that has a reasonable structure, solves the problem of center hole defects, reduces assembly steps, and improves assembly efficiency. Summary of the Invention

[0003] The purpose of this utility model is to overcome the shortcomings of the prior art and provide a cylindrical battery cell hot-drilling and flattening integrated mechanism that has a reasonable structure, solves the problem of defective center holes, reduces assembly steps, and improves assembly efficiency.

[0004] The purpose of this utility model is achieved as follows: a cylindrical battery cell hot-drilling and flattening integrated mechanism, comprising a flattening and feeding device and a battery cell, wherein the flattening and feeding device comprises a positive electrode flattening and feeding device and a negative electrode flattening and feeding device symmetrically arranged, and the battery cell is located between the positive electrode flattening and feeding device and the negative electrode flattening and feeding device; a heating module is provided on the left side of the positive electrode flattening and feeding device, and a hot-drilling needle is movably installed inside the heating module, and a driving device is poweredly connected to the left side of the hot-drilling needle.

[0005] The battery cell includes a positive electrode tab and a negative electrode tab. The positive electrode tab is located on one side of the positive electrode tab flattening and feeding device, and the negative electrode tab is located on one side of the negative electrode tab flattening and feeding device.

[0006] The positive electrode ear flattening and feeding device includes a positive electrode protruding end seat, and the negative electrode ear flattening and feeding device includes a negative electrode receiving end seat. Both the positive electrode protruding end seat and the negative electrode receiving end seat have through holes in their middle parts.

[0007] Both the positive and negative terminals of the battery cell are connected to the corresponding positive terminal protrusion and negative terminal receiving terminals respectively via a battery cell fixing device.

[0008] At least three sliding side seats are provided at intervals on the outer periphery of both the positive electrode protruding end seat and the negative electrode receiving end seat, and a feed moving seat is slidably installed on each of the sliding side seats.

[0009] Each of the feed moving seats is equipped with a servo motor, and each servo motor output is powered by a kneading roller.

[0010] A dust suction port is installed on the side of the positive electrode ear flattening and feeding device that is opposite to the hot-hole needle penetrating the positive electrode ear flattening and feeding device, and the dust suction port surrounds the outer periphery of the hot-hole needle.

[0011] The driving device is a cylinder or motor that drives the hot-hole needle to extend and retract.

[0012] The beneficial effects of this utility model are as follows: This utility model is an integrated hot-drilling and flattening mechanism for cylindrical battery cells. Bare battery cells produced during winding are weighed, hot-drilled, and their diameter measured on a conveyor belt. Simultaneously with hot-drilling the bare battery cells, the electrode tabs are flattened. In use, this utility model, with its integrated hot-drilling and flattening structure, effectively solves problems such as the flattening center needle getting caught in the diaphragm inside the center hole of the wound bare battery cell, damaging the inner electrode plate, or the electrode tabs entering the battery cell through the center hole and puncturing the diaphragm. It addresses the issue of defective center holes after flattening. Furthermore, the integrated hot-drilling and flattening structure reduces assembly steps and improves the efficiency of the battery cell assembly section. This utility model has the advantages of a reasonable structure, solving the problem of defective center holes, reducing assembly steps, and improving assembly efficiency. Attached Figure Description

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

[0014] Figure 2 This is a schematic diagram of the overall structure of the present invention. Figure 2 .

[0015] Figure 3 This is a front view of the present invention.

[0016] Figure 4 This is a cross-sectional view of the present invention.

[0017] In the diagram: 1. Positive electrode ear flattening and feeding device; 2. Negative electrode ear flattening and feeding device; 3. Positive electrode extension end seat; 31. Battery cell fixing device; 4. Negative electrode receiving end seat; 5. Through hole; 6. Battery cell; 61. Battery cell positive electrode ear end; 62. Battery cell negative electrode ear end; 7. Heating module; 8. Hot hole needle; 9. Drive device; 11. Sliding side seat; 12. Feed moving seat; 13. Servo motor; 14. Flattening wheel; 15. Dust suction port. Detailed Implementation

[0018] The present invention will be further described below with reference to the accompanying drawings. Example

[0019] like Figure 1-4As shown, a cylindrical battery cell hot-drilling and flattening integrated mechanism includes a flattening and feeding device and a battery cell 6. The flattening and feeding device includes a positive tab flattening and feeding device 1 and a negative tab flattening and feeding device 2 symmetrically arranged. The battery cell 6 is located between the positive tab flattening and feeding device 1 and the negative tab flattening and feeding device 2. A heating module 7 is arranged on the left side of the positive tab flattening and feeding device 1. A hot-drilling needle 8 is movably installed inside the heating module 7. A drive device 9 is poweredly connected to the left side of the hot-drilling needle 8.

[0020] This utility model relates to an integrated hot-drilling and flattening mechanism for cylindrical battery cells. Bare battery cells produced during winding are weighed, hot-drilled, and their diameter measured on a conveyor belt. Simultaneously with hot-drilling, the battery cell tabs are flattened. In use, this utility model employs an integrated hot-drilling and flattening structure, effectively solving problems such as the flattening center needle getting caught in the diaphragm inside the center hole of the wound bare battery cell, damaging the inner electrode plate, or the tabs entering the battery cell through the center hole and puncturing the diaphragm. This addresses the issue of defective center holes after flattening. The integrated hot-drilling and flattening structure reduces assembly steps and improves the efficiency of the battery cell assembly section. This utility model has the advantages of a reasonable structure, solving the problem of defective center holes, reducing assembly steps, and improving assembly efficiency. Example

[0021] like Figure 1-4 As shown, a cylindrical battery cell hot-drilling and flattening integrated mechanism includes a flattening and feeding device and a battery cell 6. The flattening and feeding device includes a positive tab flattening and feeding device 1 and a negative tab flattening and feeding device 2 symmetrically arranged. The battery cell 6 is located between the positive tab flattening and feeding device 1 and the negative tab flattening and feeding device 2. A heating module 7 is arranged on the left side of the positive tab flattening and feeding device 1. A hot-drilling needle 8 is movably installed inside the heating module 7. A drive device 9 is poweredly connected to the left side of the hot-drilling needle 8.

[0022] The battery cell 6 includes a positive electrode tab 61 and a negative electrode tab 62. The positive electrode tab 61 is located on one side of the positive electrode tab flattening and feeding device 1, and the negative electrode tab 62 is located on one side of the negative electrode tab flattening and feeding device 2.

[0023] The positive electrode ear flattening and feeding device 1 includes a positive electrode protruding end seat 3, and the negative electrode ear flattening and feeding device 2 includes a negative electrode receiving end seat 4. Both the positive electrode protruding end seat 3 and the negative electrode receiving end seat 4 have through holes 5 in the middle.

[0024] The positive electrode ear 61 and the negative electrode ear 62 of the battery cell are respectively connected to the corresponding positive electrode protruding end 3 and negative electrode receiving end 4 through the battery cell fixing device 31.

[0025] At least three sliding side seats 11 are provided at intervals on the outer periphery of the positive electrode protruding end seat 3 and the negative electrode receiving end seat 4, and a feed moving seat 12 is slidably installed on each sliding side seat 11.

[0026] Each of the feed moving seats 12 is equipped with a servo motor 13, and each of the servo motor 13 has a kneading roller 14 powered on its output end.

[0027] A dust suction port 15 is installed on one side of the positive electrode ear flattening and feeding device 1 relative to the hot-hole needle 8, and the dust suction port 15 surrounds the outer periphery of the hot-hole needle 8.

[0028] The driving device 9 is a cylinder or motor that drives the hot-hole needle 8 to extend and retract.

[0029] In this embodiment, the battery cell tab flattening mechanism of this utility model includes: a positive tab flattening and feeding device, a negative tab flattening and feeding device, a hot-hole needle extension and retraction cylinder or motor, a hot-hole needle heating module, a battery cell fixing module, and a positive electrode extension end seat for the positive electrode extension end of the hot-hole needle and a negative electrode receiving end seat for the negative electrode receiving end, which are used to ensure that the hot-hole needle is horizontal.

[0030] After the heating module heats the electrode, the hot-drill needle extends from the positive electrode end of the battery cell, passes through the fixing module (battery cell fixing device) and the center hole of the battery cell to reach the negative electrode end. At this time, the electrode flattening action of the battery cell is performed. That is, the positive and negative electrode flattening wheels rotate under the drive of the servo motor, while the feed moving seat moves laterally on the sliding side seat, driving the flattening wheel forward to the set feed amount, thereby ensuring the exposed length of the electrode after the battery cell is flattened.

[0031] This utility model relates to an integrated hot-drilling and flattening mechanism for cylindrical battery cells. Bare battery cells produced during winding are weighed, hot-drilled, and their diameter measured on a conveyor belt. Simultaneously with hot-drilling, the battery cell tabs are flattened. In use, this utility model employs an integrated hot-drilling and flattening structure, effectively solving problems such as the flattening center needle getting caught in the diaphragm inside the center hole of the wound bare battery cell, damaging the inner electrode plate, or the tabs entering the battery cell through the center hole and puncturing the diaphragm. This addresses the issue of defective center holes after flattening. The integrated hot-drilling and flattening structure reduces assembly steps and improves the efficiency of the battery cell assembly section. This utility model has the advantages of a reasonable structure, solving the problem of defective center holes, reducing assembly steps, and improving assembly efficiency.

Claims

1. A cylindrical battery cell hole-punching and flattening integrated mechanism, comprising a flattening and feeding device and a battery cell, characterized in that: The rubbing and feeding device comprises symmetrical positive lug rubbing and feeding devices and negative lug rubbing and feeding devices, and the battery cell is located between the positive lug rubbing and feeding devices and the negative lug rubbing and feeding devices; the heating module is arranged on the left side of the positive lug rubbing and feeding device, the hot piercing needle is movably arranged in the heating module, and the driving device is power-connected to the left side of the hot piercing needle.

2. The cylinder cell hole punching and flattening integrated mechanism according to claim 1, characterized in that: The battery cell comprises a positive lug end and a negative lug end, the positive lug end is located on one side of the positive lug rubbing and feeding device, and the negative lug end is located on one side of the negative lug rubbing and feeding device.

3. The cylinder cell hole punching and flattening integrated mechanism according to claim 2, characterized in that: The positive lug rubbing and feeding device comprises a positive lug protruding end seat, and the negative lug rubbing and feeding device comprises a negative lug receiving end seat, and a through hole is formed in the middle of the positive lug protruding end seat and the negative lug receiving end seat.

4. The cylinder core punching and flattening integrated mechanism according to claim 3, characterized in that: The positive lug end and the negative lug end are connected to the corresponding positive lug protruding end seat and negative lug receiving end seat through the battery cell fixing device.

5. The cylinder core punching and flattening integrated mechanism according to claim 4, characterized in that: The outer periphery of the positive lug protruding end seat and the negative lug receiving end seat is spaced apart and provided with at least three sliding edge seats, and the feeding moving seats are slidingly and fitly installed on the sliding edge seats.

6. The cylinder core punching and flattening integrated mechanism according to claim 5, characterized in that: Servo motors are installed above the feeding moving seats, and rubbing wheels are power-installed at the output ends of the servo motors.

7. The cylinder core punching and flattening integrated mechanism of claim 2, wherein: The positive lug rubbing and feeding device is provided with a dust suction port on the side surface of the positive lug rubbing and feeding device which penetrates the hot piercing needle, and the dust suction port surrounds the outer periphery of the hot piercing needle.

8. The cylinder cell hole punching and flattening integrated mechanism of claim 1, wherein: The driving device adopts a cylinder or a motor which drives the hot piercing needle to protrude and retract.

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