An electrode tab processing device

CN116598430BActive Publication Date: 2026-10-09ZHUHAI HIGRAND ELECTRONICS TECH
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Patent Information

Application Number
CN202310492586.7
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2023-05-04
Publication Date
2026-10-09
Estimated Expiration
2043-05-04

AI Technical Summary

Technical Problem

由于纽扣式电池的电芯的尺寸很小,夹具夹紧电芯时容易使电芯变形,会对电池后端工序造成影响,如电芯变形后不易入壳等,影响生产效率及产品良率

Benefits of technology

[0014] As can be seen from the above technical solutions, the electrode processing device of the present invention, through the reinforcing member pressing and feeding mechanism, reinforcing member clamping mechanism, reinforcing member cutting mechanism, reinforcing member picking and feeding mechanism, electrode cutting mechanism, electrode pitch changing mechanism and welding mechanism, can complete the operation of cutting the electrode before winding the electrode and then welding the structural reinforcing sheet at the cut end of the electrode. By adding the structural reinforcing sheet on the electrode, the strength of the electrode is improved, the stability of the wound battery cell is increased, and the deformation of the battery cell is prevented in the processes of hot hole, electrode tab positioning and rounding, thereby improving the product yield. The battery cell without deformation is easier to enter the casing, thus improving the production efficiency.

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Abstract

An electrode piece processing device comprises a reinforcing member unwinding mechanism, a reinforcing member pressing mechanism, a reinforcing member clamping mechanism, a reinforcing member cutting mechanism, a reinforcing member taking mechanism, an electrode piece cutting mechanism, an electrode piece distance changing mechanism and a welding mechanism; the reinforcing member pressing mechanism sends a material belt to the reinforcing member cutting mechanism; the reinforcing member cutting mechanism is located between the reinforcing member clamping mechanism and the reinforcing member pressing mechanism, cuts the material belt, and the reinforcing member clamping mechanism clamps the head of the material belt; the reinforcing member taking mechanism sends the cut reinforcing member from the reinforcing member clamping mechanism to the welding mechanism; the electrode piece distance changing mechanism comprises a third clamping jaw and a fourth clamping jaw; the electrode piece cutting mechanism cuts an electrode piece between the third and fourth clamping jaws; and the welding mechanism welds the reinforcing member to the cut electrode piece, so that the cut electrode pieces are connected by the reinforcing member. The device can weld the reinforcing member to the cut electrode piece, improve the strength of the electrode piece, and prevent the deformation of the battery cell.
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Description

Technical Field

[0001] This invention belongs to the technical field of lithium battery manufacturing equipment, specifically relating to an electrode processing device. Background Technology

[0002] Cylindrical button cell batteries are primarily manufactured using a winding process. The winding process involves bringing the separately unwound positive and negative electrode sheets and separator to a winding needle, which then clamps the sequentially stacked separator and electrode sheets and winds them into a core. After winding, the button cell undergoes steps such as perforation, tab alignment, and rounding. During these operations, the cell needs to be clamped using a fixture. Because button cell cells are very small, clamping them can easily deform them, affecting subsequent battery processes, such as making it difficult to insert the deformed cell into the casing, thus impacting production efficiency and product yield. Summary of the Invention

[0003] The purpose of this invention is to provide an electrode processing mechanism for the steel sheet welding step of the electrode sheet, which improves the strength of the electrode sheet by setting steel sheets on the electrode sheet and prevents the electrode sheet from easily deforming after being wound into a battery cell.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] An electrode processing apparatus includes: a frame, on which are mounted a reinforcement unwinding mechanism, a reinforcement feeding mechanism, a reinforcement clamping mechanism, a reinforcement cutting mechanism, a reinforcement picking and feeding mechanism, an electrode cutting mechanism, an electrode pitch changing mechanism, and a welding mechanism; the reinforcement unwinding mechanism includes a strip roll for mounting a structural reinforcement strip roll; the reinforcement feeding mechanism is used to feed the strip unwound from the strip roll to the reinforcement cutting mechanism; the reinforcement cutting mechanism and the reinforcement clamping mechanism are arranged adjacent to each other, with the reinforcement cutting mechanism located between the reinforcement clamping mechanism and the reinforcement feeding mechanism, and the reinforcement cutting mechanism is used to feed the strip... The process includes: a cutting mechanism for clamping the head of the strip; a feeding mechanism for delivering the cut structural reinforcement from the clamping mechanism to the welding mechanism; an electrode pitch-changing mechanism and a welding mechanism arranged opposite to each other; the electrode pitch-changing mechanism including a third and a fourth jaw for clamping the electrode, the third and fourth jaws being movable relative to each other in the extension direction of the electrode; an electrode cutting mechanism for cutting the electrode between the third and fourth jaws; and a welding mechanism for welding the structural reinforcement to the cut end of the electrode, so that the cut electrode is connected together by the structural reinforcement.

[0006] As described above, in the electrode processing apparatus, optionally, the reinforcing member pressing and feeding mechanism includes an upper pressure plate and a lower pressure plate arranged opposite to each other. The upper pressure plate and the lower pressure plate can move relative to each other, thereby clamping or releasing the strip released from the strip winding. The upper pressure plate and the lower pressure plate are arranged on a horizontally movable carriage. When the carriage moves, the upper pressure plate and the lower pressure plate feed the strip to the reinforcing member cutting mechanism. The carriage is horizontally movable on the frame via a first slide rail arranged on the platform of the frame. The horizontal movement of the carriage is controlled by a pressure plate transverse movement drive unit. The lower pressure plate is fixed on the carriage, and the upper pressure plate is vertically movable on the carriage. The vertical movement of the lower pressure plate is controlled by a pressure plate lifting drive unit.

[0007] As described above, in the electrode processing apparatus, optionally, the reinforcing member clamping mechanism includes a first gripper bracket and a first gripper disposed on the first gripper bracket. The first gripper bracket is horizontally movably disposed on the frame via a second slide rail disposed on the platform of the frame. The horizontal movement of the first gripper bracket is controlled by a first gripper translation drive unit. The movement direction of the first gripper bracket is consistent with the movement direction of the slide rail.

[0008] Optionally, in the electrode processing apparatus described above, the reinforcing member cutting mechanism includes a cutter and a cutter drive unit for controlling the up-and-down movement of the cutter.

[0009] As described above, in the electrode processing apparatus, optionally, the reinforcing member feeding mechanism includes a second gripper, a rotary mounting base, a second gripper bracket, and a slide; the slide is horizontally movably mounted on the frame via a third slide rail mounted on the platform of the frame; the rotary mounting base is horizontally rotatably mounted on the slide; the second gripper is horizontally movably mounted on the rotary mounting base; the horizontal movement of the slide is controlled by a slide translation drive unit; the horizontal rotation of the rotary mounting base is controlled by a gripper rotation drive unit; and the horizontal movement of the second gripper is controlled by a second gripper translation drive unit.

[0010] Optionally, in the electrode processing apparatus described above, the rotary mounting base is provided with a fourth slide rail, the second gripper is disposed on the fourth slide rail and can move along the fourth slide rail, the extension direction of the fourth slide rail is perpendicular to the extension direction of the third slide rail, and the extension direction of the third slide rail is parallel to the extension directions of the first slide rail and the second slide rail.

[0011] As described above, the electrode processing apparatus may optionally include an electrode pitch-changing mechanism that further comprises a first gripper translation bracket and a second gripper translation bracket. The third gripper is disposed on the first gripper translation bracket, and the fourth gripper is disposed on the second gripper translation bracket. The first gripper translation bracket is controlled by the third gripper translation drive unit to move horizontally, and the second gripper translation bracket is controlled by the fourth gripper translation drive unit to move horizontally. When the first gripper translation bracket and the second gripper translation bracket move, the third gripper and the fourth gripper can be separated, thereby separating the cut electrode sheets.

[0012] As described above, the electrode processing apparatus may optionally include an electrode cutting mechanism comprising scissors and a shearing cylinder for controlling the scissors to cut the electrode held by the third and fourth grippers.

[0013] In the electrode processing apparatus described above, optionally, the welding mechanism includes a welding head and a welding base disposed opposite to each other, wherein the welding head is movable relative to the welding base.

[0014] As can be seen from the above technical solutions, the electrode processing device of the present invention, through the reinforcing member pressing and feeding mechanism, reinforcing member clamping mechanism, reinforcing member cutting mechanism, reinforcing member picking and feeding mechanism, electrode cutting mechanism, electrode pitch changing mechanism and welding mechanism, can complete the operation of cutting the electrode before winding the electrode and then welding the structural reinforcing sheet at the cut end of the electrode. By adding the structural reinforcing sheet on the electrode, the strength of the electrode is improved, the stability of the wound battery cell is increased, and the deformation of the battery cell is prevented in the processes of hot hole, electrode tab positioning and rounding, thereby improving the product yield. The battery cell without deformation is easier to enter the casing, thus improving the production efficiency. Attached Figure Description

[0015] To more clearly illustrate the embodiments of the present invention, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the electrode processing apparatus according to an embodiment of the present invention;

[0017] Figure 2 This is a schematic diagram of the reinforcing member pressing mechanism according to an embodiment of the present invention;

[0018] Figure 3 This is a schematic diagram of the structure of the reinforcing clamping mechanism according to an embodiment of the present invention;

[0019] Figure 4 This is a schematic diagram of the reinforcing member cutting mechanism according to an embodiment of the present invention;

[0020] Figure 5 This is a schematic diagram of the structure of the reinforcement component delivery mechanism according to an embodiment of the present invention;

[0021] Figure 6 This is a schematic diagram of the welding mechanism according to an embodiment of the present invention;

[0022] Figure 7 This is a schematic diagram of the electrode pitch-changing mechanism according to an embodiment of the present invention;

[0023] Figure 8 This is a schematic diagram of the electrode cutting mechanism according to an embodiment of the present invention.

[0024] The specific embodiments of the present invention will be described in further detail below with reference to the accompanying drawings. Detailed Implementation

[0025] The present invention will now be described in detail with reference to the accompanying drawings. In the detailed description of the embodiments of the present invention, for ease of explanation, the drawings illustrating the device structure will be partially enlarged without adhering to the general scale. Furthermore, the schematic diagrams are merely examples and should not be construed as limiting the scope of protection of the present invention. It should be noted that the drawings are in a simplified form and use non-precise scales, solely for the purpose of conveniently and clearly illustrating the embodiments of the present invention. Additionally, in the description of this application, terms such as "first" and "second" are used only to distinguish descriptions and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Terms such as "positive," "negative," "bottom," "upper," and "lower" indicate orientation or positional relationships based on the orientation or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention.

[0026] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can also refer to the internal connection of two components; and they can refer to a wireless connection or a wired connection. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0027] Button cell batteries are typically made by stacking positive electrode plates, negative electrode plates, and separators in sequence and then winding them using a winding machine. Due to their small size, the cells are prone to deformation during operations such as hot-drilling, tab positioning, and rounding, which can affect subsequent processes and product yield.

[0028] To address the issue of cell deformation in button cell batteries, the inventors focused on increasing electrode strength. They improved the electrode structure and cell winding process by cutting the electrodes before winding them. Then, structural reinforcement sheets are welded to the cut edges. Finally, the electrodes with the reinforcement sheets are wound to form the cell. The reinforcement sheets increase the electrode strength, preventing deformation when the cell is clamped. The reinforcement sheets can be steel sheets or other rigid shaped metals with a thickness of 0.06mm to 0.12mm. The length of the reinforcement sheets can be between 12mm and 18mm. After welding the reinforcement sheets to the electrodes, they help to shape the cell.

[0029] This invention provides an electrode processing apparatus, which is installed before the winding station of a winding machine. This apparatus is used to cut the electrode and weld structural reinforcement sheets at the cut ends before the electrode is fed to the winding head. Figure 1 As shown, the electrode processing apparatus of this embodiment includes a frame 10, on which are provided a reinforcement unwinding mechanism 1, a reinforcement pressing and feeding mechanism 2, a reinforcement clamping mechanism 3, a reinforcement cutting mechanism 4, a reinforcement picking and feeding mechanism 5, an electrode cutting mechanism 6, an electrode pitch changing mechanism 7, and a welding mechanism 8.

[0030] The reinforcing component unwinding mechanism 1 is used to unwind strips of shaped metal such as steel sheets. The mechanism includes a strip winding roller 1-1 for holding the strip roll and several buffer rollers 1-2. The strip winding roller 1-1 can rotate around its own axis. The strip roll is mounted on the strip winding roller 1-1, which rotates under the control of a drive unit such as a motor to unwind the strip. The buffer rollers 1-2 are mounted on the frame 10. After the strip is unwound from the strip roll, it passes over the buffer rollers 1-2 and is then fed to the reinforcing component pressing mechanism 2. The number and position of the buffer rollers 1-2 can be set according to requirements.

[0031] Combination Figure 1 and Figure 2As shown, the reinforcing member pressing mechanism 2 of this embodiment includes an upper pressure plate 2-1, a lower pressure plate 2-2, a pressure plate lifting drive unit 2-3, a pressure plate lateral movement drive unit 2-4, and a slide 2-5. The slide 2-5 is horizontally movably mounted on the frame 10. In this embodiment, a first slide rail 10a is provided on the platform of the frame 10, and the slide 2-5 is mounted on the first slide rail 10a and can move horizontally under the control of the pressure plate lateral movement drive unit 2-4. The pressure plate lateral movement drive unit 2-4 of this embodiment is a motor, and the motor drives the slide 2-5 to move horizontally through a screw transmission structure 2-6. Upper pressure plate 2-1 and lower pressure plate 2-2 are mounted on slide 2-5, and are arranged vertically opposite each other, allowing relative movement between them, such as moving towards each other and pressing together, or separating from each other. In this embodiment, lower pressure plate 2-2 is fixed to slide 2-5, while upper pressure plate 2-1 is movably mounted on slide 2-5. The vertical movement of upper pressure plate 2-1 is controlled by pressure plate lifting drive unit 2-3 mounted on slide 2-5. In this embodiment, pressure plate lifting drive unit 2-3 is a cylinder. After the steel strip or other material is unwound and fed to reinforcing member pressing mechanism 2, upper pressure plate 2-1 and lower pressure plate 2-2 move towards each other and press together, then move horizontally to feed the steel strip or other material to reinforcing member cutting mechanism 4.

[0032] The reinforcing component clamping mechanism 3 and the reinforcing component cutting mechanism 4 are arranged adjacent to each other, with the cutting mechanism 4 located between the clamping mechanism 3 and the feeding mechanism 2. When the feeding mechanism 2 feeds the steel strip or other material forward to the position of the cutting mechanism 4, the clamping mechanism 3 clamps the head of the strip, and then the cutting mechanism 4 cuts the strip. Figure 3 As shown, the reinforcement clamping mechanism 3 of this embodiment includes a pair of first grippers 3-1. The first grippers 3-1 are mounted on a first gripper bracket 3-2, which is horizontally movably mounted on the frame 10. In this embodiment, a second slide rail 10b is provided on the platform of the frame 10. The first gripper bracket 3-2 is mounted on the second slide rail 10b and can move along the second slide rail 10b under the control of the first gripper translation drive unit 3-3. The moving direction of the first gripper bracket 3-2 is the same as the moving direction of the slide 2-5. In this embodiment, the gripper translation drive unit 3-3 is a pen-shaped cylinder, and the first grippers 3-1 can be finger cylinders. When the first gripper bracket 3-2 moves with the first grippers 3-1, it delivers the cut steel strip to the reinforcement picking and feeding mechanism 5.

[0033] like Figure 4As shown, the reinforcing member cutting mechanism 4 in this embodiment includes a cutter 4-1 and a cutter driving unit 4-2. The cutter driving unit 4-2 in this embodiment is a cylinder. The cutter driving unit 4-2 can drive the cutter 4-1 to move up and down, thereby cutting the material strip.

[0034] like Figure 5 As shown, the reinforcement component handling mechanism 5 of this embodiment includes a second gripper 5-1, a rotary mounting base 5-2, a second gripper bracket 5-3, a second gripper translation drive unit 5-4, a gripper rotation drive unit 5-5, a slide block 5-6, and a slide block translation drive unit 5-7. In this embodiment, a third slide rail 10c is provided on the platform of the frame 10. The slide block 5-6 is mounted on the third slide rail 10c and can move along it. The rotary mounting base 5-2 is horizontally rotatably mounted on the slide block 5-6. The gripper rotation drive unit 5-5 drives the rotary mounting base 5-2 to rotate. In this embodiment, the gripper rotation drive unit 5-5 uses a rotary cylinder, which can directly drive the rotary mounting base 5-2 to rotate. The second gripper 5-1 is horizontally movably mounted on the rotary mounting base 5-2. The horizontal movement of the second gripper 5-1 is controlled by the second gripper translation drive unit 5-4. In this embodiment, a fourth slide rail 10d is provided on the rotary mounting base 5-2, and a second gripper 5-1 is disposed on the fourth slide rail 10d and can move along the fourth slide rail 10d. The extending direction of the fourth slide rail 10d in this embodiment is perpendicular to the extending direction of the third slide rail 10c. The extending direction of the third slide rail 10c is parallel to the extending directions of the first slide rail 10a and the second slide rail 10b. In this embodiment, the second gripper 5-1 is a finger cylinder, and the second gripper translation drive unit 5-4 is a pen-shaped cylinder. When the slide base translation drive unit 5-6 drives the slide base 5-6 to move, it can drive the second gripper 5-1 to move along the extending direction of the third slide rail 10c between the position of the reinforcing member clamping mechanism 3 and the position of the welding mechanism 8. When the second gripper translation drive unit 5-4 drives the second gripper 5-1 to move, it can drive the second gripper 5-1 to move along the extending direction of the fourth slide rail 10d between the position of the reinforcing member clamping mechanism 3 and the position of the welding mechanism 8. The gripper rotation drive unit 5-5 can drive the second gripper 5-1 to rotate 90°, delivering the reinforcing member to a position parallel to the electrode sheet.

[0035] like Figure 6 As shown, the welding mechanism 8 in this embodiment includes a welding head 8-1 and a welding seat 8-2. The welding head 8-1 and the welding seat 8-2 are arranged opposite to each other. The welding head 8-1 can move up and down relative to the welding seat 8-2. The up and down movement of the welding head 8-1 is controlled by the welding head driving unit 8-3. In this embodiment, the welding head driving unit 8-3 is a cylinder.

[0036] The electrode pitch changing mechanism 7 and the welding mechanism 8 are arranged opposite to each other, such as... Figure 7As shown, the electrode pitch-changing mechanism 7 in this embodiment includes a third gripper 7-1, a fourth gripper 7-2, a first gripper translation bracket 7-3, a second gripper translation bracket 7-4, a third gripper translation drive unit 7-5, and a fourth gripper translation drive unit 7-6. The third gripper 7-1 is mounted on the first gripper translation bracket 7-3, and the fourth gripper 7-2 is mounted on the second gripper translation bracket 7-4. When the third gripper translation drive unit 7-5 and the fourth gripper translation drive unit 7-6 control the movement of the first gripper translation bracket 7-3 and the second gripper translation bracket 7-4 respectively, the third gripper 7-1 and the fourth gripper 7-2 can be separated. The electrode cutting mechanism 6 includes scissors 6-1, which, under the control of a shearing cylinder 6-2, cuts the electrode clamped by the first gripper 7-1 and the second gripper 7-2. After the electrode is cut, the first gripper 7-1 and the second gripper 7-2 move away from each other, maintaining a certain distance between the cut electrode. Then, the second gripper 5-1 feeds structural reinforcements such as steel sheets between the cut electrode. The welding mechanism 8 welds the steel sheets to the broken ends of the electrode, thus reconnecting the cut electrode together through the structural reinforcements such as steel sheets.

[0037] The following is combined Figures 1 to 8 Taking steel sheets as an example, the working process of the electrode processing device of the present invention will be described. After the operator installs the steel strip roll onto the strip roll shaft 1-1, the strip roll shaft 1-1 rotates, releasing the steel strip from the roll. The steel strip passes over the buffer roller 1-2 and is sent to the reinforcing member pressing mechanism 2.

[0038] After the upper pressure plate 2-1 and lower pressure plate 2-2 of the reinforcing component pressing mechanism 2 clamp the steel strip, the steel strip is fed forward to the reinforcing component cutting mechanism 4. The first jaw 3-1 of the reinforcing component clamping mechanism 3 clamps the head of the steel strip, and the cutter 4-1 of the reinforcing component cutting mechanism 4 cuts the steel strip to obtain the steel sheet clamped by the reinforcing component clamping mechanism 3.

[0039] Under the control of the second gripper 5-1 of the reinforcing member drive mechanism 5, the second gripper 5-1 moves forward and clamps the steel sheet, while the first gripper 3-1 releases the steel sheet. The second gripper 5-1 retracts to its original position, and simultaneously, the slide translation drive unit 5-7 drives the slide 5-6 to move, sending the second gripper 5-1 to the position of the welding mechanism 8. After the slide 5-6 moves into position, the gripper rotation drive unit 5-5 actuates, causing the second gripper 5-1 to rotate 90°, so that the steel sheet and the cut electrode are facing each other.

[0040] After the electrode sheet is released from the electrode sheet roll, during the conveyor belt process, when it moves to the position of the electrode sheet pitch mechanism 7, the third jaw 7-1 and the fourth jaw 7-2 of the electrode sheet pitch mechanism 7 clamp the electrode sheet respectively, and the electrode sheet cutting mechanism 6 cuts the electrode sheet with the jaw 6-1. The third jaw 7-1 and the fourth jaw 7-2 are separated by a certain distance to keep a certain gap between the cut electrode sheets, and then they are welded together with the steel sheet fed by the second jaw 5-1 through the welding mechanism 8.

[0041] This invention provides an electrode processing apparatus to add a new processing step to the conventional winding process. This step involves cutting the electrode and then welding structural reinforcements, such as steel sheets, to the cut edges to increase the electrode's strength, making the battery cell more stable and less prone to deformation. This improves the battery cell yield and enhances battery performance. If the electrode is not cut and steel sheets are welded to it, the large contact area between the electrode and the steel sheets can easily create gaps, leading to short circuits in the battery cell. By cutting the electrode and reconnecting it at the cut edges with steel sheets, the strength of the electrode is increased, and gaps between the electrode and the steel sheets that could cause short circuits are prevented.

[0042] The above description of the disclosed embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An electrode processing apparatus, characterized in that, include: The frame is equipped with a reinforcement unwinding mechanism, a reinforcement pressing and feeding mechanism, a reinforcement clamping mechanism, a reinforcement cutting mechanism, a reinforcement picking and feeding mechanism, an electrode cutting mechanism, an electrode pitch changing mechanism, and a welding mechanism. The reinforcement unwinding mechanism includes a strip roll shaft for mounting the structural reinforcement strip roll; The reinforcing component pressing and feeding mechanism is used to feed the strip unwound from the strip roll to the reinforcing component cutting mechanism; The reinforcing component cutting mechanism and the reinforcing component clamping mechanism are arranged adjacent to each other. The reinforcing component cutting mechanism is located between the reinforcing component clamping mechanism and the reinforcing component pressing mechanism. The reinforcing component cutting mechanism is used to cut the material strip, and the reinforcing component clamping mechanism is used to clamp the head of the material strip. The reinforcement feeding mechanism is used to feed the cut structural reinforcement from the reinforcement clamping mechanism to the welding mechanism; The electrode pitch changing mechanism and the welding mechanism are arranged opposite to each other. The electrode pitch changing mechanism includes a third jaw and a fourth jaw for clamping the electrode. The third jaw and the fourth jaw are capable of moving relative to each other in the extension direction of the electrode. The electrode cutting mechanism is used to cut the electrode between the third clamp and the fourth clamp. After the electrode is cut, the third clamp and the fourth clamp move away from each other, so that the cut electrode maintains a certain distance. The welding mechanism is used to weld the structural reinforcement to the cut end of the electrode, so that the cut electrode is connected together by the structural reinforcement. The electrode processing device is located before the winding station of the winding equipment and is used to cut the electrode and weld structural reinforcement sheets at the cut ends of the electrode before the electrode is sent to the winding head.

2. The electrode processing apparatus as described in claim 1, characterized in that: The reinforcing component pressing mechanism includes an upper pressure plate and a lower pressure plate arranged opposite to each other. The upper pressure plate and the lower pressure plate can move relative to each other, thereby clamping or releasing the material strip unwound from the material strip roll. The upper pressure plate and the lower pressure plate are arranged on a horizontally movable slide. When the slide moves, the upper pressure plate and the lower pressure plate feed the material strip to the reinforcing component cutting mechanism. The slide is horizontally movable on the machine frame via a first slide rail arranged on the platform of the machine frame. The horizontal movement of the slide is controlled by the pressure plate transverse movement drive unit. The lower pressure plate is fixed on the slide, and the upper pressure plate is mounted on the slide and can move up and down. The up and down movement of the lower pressure plate is controlled by the pressure plate lifting drive unit.

3. The electrode processing apparatus as described in claim 2, characterized in that: The reinforcing component clamping mechanism includes a first gripper bracket and a first gripper mounted on the first gripper bracket. The first gripper bracket is horizontally movable on the frame via a second slide rail mounted on the platform of the frame. The horizontal movement of the first gripper bracket is controlled by a first gripper translation drive unit. The movement direction of the first gripper bracket is consistent with the movement direction of the slide rail.

4. The electrode processing apparatus as described in claim 1, characterized in that: The reinforcement cutting mechanism includes a cutter and a cutter drive unit that controls the up and down movement of the cutter.

5. The electrode processing apparatus as described in claim 3, characterized in that: The reinforcement component handling mechanism includes a second gripper, a rotary mounting base, a second gripper bracket, and a slide. The slide is horizontally movable on the frame via a third slide rail mounted on the platform of the frame. The rotary mounting base is horizontally rotatable on the slide. The second gripper is horizontally movable on the rotary mounting base. The horizontal movement of the slide is controlled by a slide translation drive unit, the horizontal rotation of the rotary mounting base is controlled by a gripper rotation drive unit, and the horizontal movement of the second gripper is controlled by a second gripper translation drive unit.

6. The electrode processing apparatus as described in claim 5, characterized in that: The rotary mounting base is provided with a fourth slide rail, and the second gripper is disposed on the fourth slide rail and is capable of moving along the fourth slide rail. The extension direction of the fourth slide rail is perpendicular to the extension direction of the third slide rail, and the extension direction of the third slide rail is parallel to the extension directions of the first slide rail and the second slide rail.

7. The electrode processing apparatus as described in claim 1, characterized in that: The electrode pitch-changing mechanism further includes a first gripper translation bracket and a second gripper translation bracket. The third gripper is disposed on the first gripper translation bracket, and the fourth gripper is disposed on the second gripper translation bracket. The first gripper translation bracket is controlled by the third gripper translation drive unit to move horizontally, and the second gripper translation bracket is controlled by the fourth gripper translation drive unit to move horizontally. When the first gripper translation bracket and the second gripper translation bracket move, the third gripper and the fourth gripper can be separated, so that the cut electrode sheets are separated.

8. The electrode processing apparatus as described in claim 1, characterized in that: The electrode cutting mechanism includes scissors and a shearing cylinder that controls the scissors to cut the electrode held by the third and fourth grippers.

9. The electrode processing apparatus as described in claim 1, characterized in that: The welding mechanism includes a welding head and a welding base arranged opposite each other, and the welding head is movable relative to the welding base.

Citation Information

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