Current collector extrusion device for battery production

By designing an extrusion and stabilization mechanism, the problem of uneven force on the roller on an uneven surface is solved, achieving uniform extrusion and buffering effect on the current collector surface, thus improving the quality of battery production.

CN223757499UActive Publication Date: 2026-01-02AI MU XI AI (SU QIAN) DIAN CHI JI SHU YOU XIAN GONG SI
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Patent Information

Application Number
CN202520236071.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-13
Publication Date
2026-01-02
Estimated Expiration
2035-02-13

AI Technical Summary

Technical Problem

In existing current collector extrusion devices for battery production, uneven force on the connecting rods occurs when the rollers move on uneven surfaces, affecting the extrusion effect.

Method used

The device employs a pressing mechanism and a stabilizing mechanism. A motor-driven threaded rod drives a moving frame and a telescopic cylinder in coordination. The roller reciprocates under the action of a torsion spring and a return spring, and the stability of the roller is maintained by a stabilizing ball and a telescopic spring.

Benefits of technology

This achieves a smooth and uniform extrusion of the current collector surface, improves the extrusion effect, and ensures the buffering and pressurizing effect of the roller on the protrusions on the current collector surface.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of battery production equipment, and discloses a current collector extrusion device for battery production, which comprises a support table, and a support block is fixedly mounted on the lower surface of the support table. According to the current collector extrusion device for battery production, a motor is started to drive a first threaded rod to rotate to drive a movable frame to move, a roller conveniently extrudes the surface of a current collector, meanwhile, a telescopic air cylinder is started to drive a fixed plate to move, and a connecting rod drives a straight rod to rotate under the action of a torsional spring; a telescopic air cylinder is matched for movement, a movable frame is matched for reciprocating extrusion, and meanwhile, a roller is matched with a reset spring for movement under the action of a mounting block to buffer a convex block on the surface of a current collector, so that the extrusion effect is better, and a rotary knob can be adjusted to enable a threaded rod II to rotate to drive a movable block to move; and the effect of the reset spring is better matched with the roller movably mounted on the mounting block for extrusion.
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Description

TECHNICAL FIELD

[0001] The utility model relates to battery production equipment technical field, concretely is a kind of current collector extrusion device for battery production. BACKGROUND

[0002] Current collector, as its name implies, refers to the structure or part of the current collection, mainly refers to metal foil, such as copper foil, aluminum foil, on lithium ion battery. It refers to the pole lug. Its main function is to collect the current generated by battery active material to form a larger current output, so the current collector should be in full contact with the active material, and the internal resistance should be as small as possible.

[0003] According to the current collector extrusion device for battery production (publication number: CN221102128U) disclosed, the above-mentioned application drives the screw rod to rotate by starting the driving motor, so that the extrusion part moves left and right to realize the extrusion of the current collector, and the extrusion effect is good.

[0004] However, in the actual use process of the above-mentioned device, the surface of the current collector needs to be extruded by the roller to ensure the flatness of the surface of the current collector. A plurality of rollers are buffered under a connecting rod. When one roller rolls on an uneven surface, the connecting rod will be unevenly stressed, resulting in an unsatisfactory buffering effect and affecting the extrusion effect of the subsequent roller. In view of this, the current collector extrusion device for battery production is proposed. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a current collector extrusion device for battery production to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a current collector extrusion device for battery production, comprising a support table, a support block is fixedly installed on the lower surface of the support table, a motor is fixedly installed on the surface of the support block, a threaded rod one is fixedly connected to the output end of the motor, a moving frame is threadedly connected to the surface of the threaded rod one, a telescopic cylinder is fixedly installed on the upper surface of the moving frame, a fixed plate is fixedly connected to the movable end of the telescopic cylinder, a connecting rod is movably installed on the side wall of the fixed plate, a roller is movably installed on the surface of the connecting rod, an extrusion mechanism is arranged above the support table, a stabilizing mechanism is arranged above the support table, and the extrusion mechanism comprises:

[0007] A rotating hole is formed in the side wall of the fixed plate, a straight rod is movably installed on the inner wall of the rotating hole, a torsional spring is fixedly connected to the curved surface of the straight rod, a movable groove is formed in the surface of the connecting rod, a fixed block is fixedly installed on the inner wall of the movable groove, a knob is movably connected to the surface of the fixed block, and a threaded rod two is threadedly connected to the inner wall of the knob.

[0008] The movable block is movably installed at the end of the second threaded rod, the movable block is fixedly connected with a reset spring away from the end of the second threaded rod, the reset spring is fixedly connected with a mounting block away from the movable block, and sliding grooves are formed in the inner wall of the movable groove.

[0009] Preferably, the stabilizing mechanism comprises a stabilizing hole formed in the surface of the mounting block, the inner wall of the stabilizing hole is fixedly connected with a telescopic spring, the telescopic spring is fixedly connected with a stabilizing ball away from the inner wall of the stabilizing hole, and a stabilizing groove is formed in the inner wall of the sliding groove.

[0010] Preferably, one end of the stabilizing groove is formed with a through hole, and the shape of the through hole is matched with the shape of the stabilizing ball.

[0011] Preferably, the shape of the sliding groove is matched with the shape of the mounting block, so that the mounting block can move in the sliding groove.

[0012] Preferably, the surface of the fixing block is formed with an adjusting hole, the diameter of the adjusting hole is matched with the diameter of the second threaded rod, and the second threaded rod penetrates through the surface of the fixing block.

[0013] Preferably, the diameter of the rotating hole is matched with the diameter of the straight rod, and the torsional spring is fixedly connected with the inner wall of the rotating hole away from the straight rod.

[0014] Compared with the prior art, the battery production current collector extrusion device has the following beneficial effects:

[0015] 1. The battery production current collector extrusion device is provided with an extrusion mechanism, the motor drives the threaded rod I to rotate and drives the moving frame to move, so that the cylinder can extrude the surface of the current collector, the telescopic cylinder drives the fixed plate to move, the connecting rod drives the straight rod to rotate under the action of the torsional spring, the telescopic cylinder moves in cooperation with the moving frame to reciprocatingly extrude, the cylinder moves under the action of the mounting block in cooperation with the reset spring to buffer the protrusions on the surface of the current collector, so that the extrusion effect is better, and the knob can be adjusted to drive the threaded rod II to rotate and drive the movable block to move, so that the reset spring can better cooperate with the cylinder movably installed on the mounting block to extrude, and the pressing effect of the cylinder is better.

[0016] 2. The battery production current collector extrusion device is provided with a stabilizing mechanism, the telescopic spring on the mounting block is clamped in the through hole on the stabilizing groove under the action of the stabilizing ball, so that the cylinder on the mounting block can keep the stability of the mounting block and ensure the extrusion effect of the cylinder. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a schematic view of the main structure of the utility model;

[0018] Figure 2 It is fixed plate part cross section explosion structure schematic view of the utility model;

[0019] Figure 3 It is connecting rod local structure schematic view of the utility model;

[0020] Figure 4 It is connecting rod part structure schematic view of the utility model;

[0021] Figure 5 It is installation block local explosion structure schematic view of the utility model.

[0022] In the drawing: 1, support table;2, support block;3, extrusion mechanism;301, rotating hole;302, straight bar;303, torsional spring;304, movable slot;305, fixed block;306, movable block;307, reset spring;308, mounting block;309, knob;310, threaded rod two;311, sliding slot;4, stabilizing mechanism;401, stabilizing hole;402, extension spring;403, stabilizing ball;404, stabilizing slot;5, motor;6, threaded rod one;7, moving frame;8, telescopic cylinder;9, fixed plate;10, connecting rod;11, roller. DETAILED DESCRIPTION

[0023] As Figures 1-5 shown, the utility model provides a kind of technical scheme: a kind of current collector extrusion device for battery production, including support table 1, the lower surface of support table 1 is fixedly installed support block 2, the surface of support block 2 is fixedly installed motor 5, the output end of motor 5 is fixedly connected threaded rod one 6, the surface of threaded rod one 6 is screw-connected moving frame 7, the upper surface of moving frame 7 is fixedly installed telescopic cylinder 8, the movable end of telescopic cylinder 8 is fixedly connected fixed plate 9, the side wall of fixed plate 9 is movably installed connecting rod 10, the surface of connecting rod 10 is movably installed roller 11, support table 1 is provided with extrusion mechanism 3 in the top, support table 1 is provided with stabilizing mechanism 4 in the top, and extrusion mechanism 3 includes rotating hole 301, straight bar 302, torsional spring 303, movable slot 304, fixed block 305, movable block 306, reset spring 307, mounting block 308, knob 309, threaded rod two 310, sliding slot 311.

[0024] In one embodiment of this utility model, a straight rod 302 is movably installed on the inner wall of the rotating hole 301, and a torsion spring 303 is fixedly connected to the arc surface of the straight rod 302. A movable groove 304 is formed on the surface of the connecting rod 10. A fixing block 305 is fixedly installed on the inner wall of the movable groove 304. A knob 309 is movably connected to the surface of the fixing block 305. A threaded rod 310 is threadedly connected to the inner wall of the knob 309. A movable block 306 is movably installed at the end of the threaded rod 310. A return spring 307 is fixedly connected to the end of the movable block 306 away from the threaded rod 310. A mounting block 308 is fixedly connected to the end of the return spring 307 away from the movable block 306. A sliding groove 311 is formed on the inner wall of the movable groove 304.

[0025] In addition, the stabilizing mechanism 4 includes a stabilizing hole 401, which is formed on the surface of the mounting block 308. A telescopic spring 402 is fixedly connected to the inner wall of the stabilizing hole 401. A stabilizing ball 403 is fixedly connected to the end of the telescopic spring 402 away from the inner wall of the stabilizing hole 401. A stabilizing groove 404 is formed on the inner wall of the sliding groove 311. A through hole is formed at one end of the stabilizing groove 404. The shape of the through hole is adapted to the shape of the stabilizing ball 403. At the same time, the stabilizing groove 404 can ensure that the mounting block 308 moves stably with the cooperation of the stabilizing ball 403.

[0026] In this embodiment of the utility model, the shape of the sliding groove 311 is adapted to the shape of the mounting block 308, so that the mounting block 308 can be in the inner wall of the sliding groove 311. The surface of the fixing block 305 is provided with an adjustment hole, the diameter of which is adapted to the diameter of the threaded rod 310. The threaded rod 310 passes through the surface of the fixing block 305. The diameter of the rotating hole 301 is adapted to the diameter of the straight rod 302. The end of the torsion spring 303 away from the straight rod 302 is fixedly connected to the inner wall of the rotating hole 301, so that the straight rod 302 can move in the inner wall of the rotating hole 301, which facilitates the movement of the roller 11. When the roller 11 moves under the action of the telescopic cylinder 8 and moves back and forth with the moving frame 7, the squeezing effect is better.

[0027] In this invention, during use, the motor 5 starts and drives the threaded rod 6 to rotate, which in turn moves the movable frame 7, facilitating the pressing of the roller 11 onto the surface of the collector. Simultaneously, the telescopic cylinder 8 starts and moves the fixed plate 9. The connecting rod 10, under the action of the torsion spring 303, drives the straight rod 302 to rotate, cooperating with the telescopic cylinder 8 to move and the movable frame 7 to perform reciprocating pressing. At the same time, the roller 11, under the action of the mounting block 308, moves in conjunction with the return spring 307, buffering the protrusions on the surface of the collector to improve the pressing effect. Furthermore, the knob 309 can be adjusted to rotate the threaded rod 310, which moves the movable block 306, allowing the return spring 307 to better cooperate with the roller 11 movably mounted on the mounting block 308 to press, thus improving the pressing effect of the roller 11.

[0028] Further, the telescopic spring 402 on the mounting block 308 is clamped in the through hole on the stabilizing groove 404 under the action of the stabilizing ball 403, so that the roller 11 on the mounting block 308 faces some small protrusions to keep the stability of the mounting block 308 and ensure the extrusion effect of the roller 11.

[0029] The above has made detailed description to the utility model in general, but can make some modification or improvement to it on the basis of the utility model, this is obvious to the general skilled person in the technical field. Therefore, the modification or improvement without departing from the spirit of the utility model idea, all are within the protection scope of the utility model.

Claims

1. A current collector extrusion device for battery production, comprising a support platform (1), a support block (2) fixedly mounted on the lower surface of the support platform (1), a motor (5) fixedly mounted on the surface of the support block (2), a threaded rod (6) fixedly connected to the output end of the motor (5), a movable frame (7) threadedly connected to the surface of the threaded rod (6), a telescopic cylinder (8) fixedly mounted on the upper surface of the movable frame (7), a fixed plate (9) fixedly connected to the movable end of the telescopic cylinder (8), a connecting rod (10) movably mounted on the side wall of the fixed plate (9), and a roller (11) movably mounted on the surface of the connecting rod (10), characterized in that: The upper portion of the support table (1) is provided with an extrusion mechanism (3), and the upper portion of the support table (1) is provided with a stabilizing mechanism (4), the extrusion mechanism (3) comprises: A rotating hole (301) is formed in the side wall of the fixed plate (9), a straight rod (302) is movably installed on the inner wall of the rotating hole (301), the curved surface of the straight rod (302) is fixedly connected with a torsion spring (303), a movable groove (304) is formed in the surface of the connecting rod (10), a fixed block (305) is fixedly installed on the inner wall of the movable groove (304), a knob (309) is movably connected to the surface of the fixed block (305), and a threaded rod two (310) is threadedly connected to the inner wall of the knob (309). A movable block (306) is movably installed at the end of the threaded rod two (310), a reset spring (307) is fixedly connected to the end of the movable block (306) away from the threaded rod two (310), an installation block (308) is fixedly connected to the end of the reset spring (307) away from the movable block (306), and a sliding groove (311) is formed in the inner wall of the movable groove (304).

2. The current collector extruding device for battery production according to claim 1, characterized in that: The stabilizing mechanism (4) comprises a stabilizing hole (401) formed in the surface of the installation block (308), a telescopic spring (402) is fixedly connected to the inner wall of the stabilizing hole (401), a stabilizing ball (403) is fixedly connected to the end of the telescopic spring (402) away from the inner wall of the stabilizing hole (401), and a stabilizing groove (404) is formed in the inner wall of the sliding groove (311).

3. The current collector extruding apparatus for battery production according to claim 2, characterized in that: One end of the stabilizing groove (404) is provided with a through hole, and the shape of the through hole is matched with the shape of the stabilizing ball (403).

4. The current collector extruding apparatus for battery production according to claim 1, wherein: The shape of the sliding groove (311) is matched with the shape of the installation block (308).

5. The current collector extruding device for battery production according to claim 1, characterized in that: An adjusting hole is formed in the surface of the fixed block (305), the diameter of the adjusting hole is matched with the diameter of the threaded rod two (310), and the threaded rod two (310) penetrates through the surface of the fixed block (305).

6. The current collector extruding device for battery production according to claim 1, characterized in that: The diameter of the rotating hole (301) is matched with the diameter of the straight rod (302), and the end of the torsion spring (303) away from the straight rod (302) is fixedly connected with the inner wall of the rotating hole (301).

Citation Information

Patent Citations

  • Current collector extrusion device for battery production

    CN221102128U