Pole piece rolling device

Abstract

The utility model discloses a pole piece rolling device, which relates to the technical field of lithium ion batteries and comprises a support base, the upper surface of the support base is fixedly connected with an adjusting assembly, the inner wall of the adjusting assembly is slidably connected with a second rolling mechanism, and the lower surface of the outer wall of the middle of the second rolling mechanism is in lap joint with a pole piece. A first rolling mechanism is in lap joint with the inner wall of the pole piece, the outer walls of the left part and the right part of the first rolling mechanism are slidably connected with the inner wall of an adjusting assembly, the adjusting assembly comprises a U-shaped frame, and the lower surface of the U-shaped frame is fixedly connected with the upper surface of the supporting base. According to the pole piece rolling device disclosed by the utility model, the pole piece is rolled through the extrusion roller II and the extrusion roller I, and the pole piece can be rolled by using a smaller acting force Fb, so that the pole piece is extended, and the acting force acting on the pole piece is reduced, so that the pole piece is not damaged, and the occurrence frequency of belt breakage is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of lithium-ion batteries, in particular to a pole piece rolling device. Background Art

[0002] Lithium-ion battery is a secondary battery (rechargeable battery) that mainly relies on the movement of lithium ions between the positive and negative electrodes to work. The production process of lithium-ion batteries includes mixing, coating, rolling, punching, electrode welding and other processes. Among them, in the current lithium-ion battery manufacturing process, the electrode needs to be extended during the rolling process, so a electrode rolling device is required.

[0003] The existing technology has the following problems:

[0004] When the pole piece rolling device rolls the pole piece, the current method used is mostly to apply a large force to the pole piece and force the rolling, which can easily cause the pole piece to be damaged and the belt to break during the rolling process, seriously affecting the qualification rate and production efficiency of the manufacturing process. At the same time, when the pole piece rolling device is in use, it is not convenient to adjust the extrusion roller according to demand, so it is not convenient to promote its use. Utility Model Content

[0005] The utility model provides a pole piece rolling device to solve the problems raised in the above background technology.

[0006] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0007] The pole piece rolling device includes a support base, the upper surface of the support base is fixedly connected to an adjustment component, the inner wall of the adjustment component is slidably connected to a second rolling mechanism, the lower surface of the middle outer wall of the second rolling mechanism is overlapped with a pole piece, the inner wall of the pole piece is overlapped with a first rolling mechanism, and the outer walls of the left and right parts of the first rolling mechanism are respectively slidably connected to the inner wall of the adjustment component.

[0008] Preferably, the adjustment assembly includes a U-shaped frame, the lower surface of the U-shaped frame is fixedly connected to the upper surface of the support base, the inner walls of the left and right parts of the U-shaped frame are rotatably connected with threaded rods, the outer walls of the upper and lower parts of the two threaded rods are respectively threadedly connected to the inner cavities of the left and right parts of rolling mechanism one and rolling mechanism two, and the threads of the outer walls of the upper and lower parts of the threaded rods are opposite.

[0009] Preferably, the upper surfaces of the two threaded rods are fixedly connected to toothed pulleys, the outer walls of the two toothed pulleys are engaged with synchronous toothed belts, the outer walls of the synchronous toothed belts are slidingly connected to the inner cavity of the upper part of the U-shaped frame, the inner wall of the upper left part of the U-shaped frame is fixedly connected to a motor, and the output end of the motor is fixedly connected to the upper surface of the toothed pulley located on the left part.

[0010] Preferably, the front and rear sides of the inner walls of the left and right parts of the U-shaped frame are fixedly connected with guide rails, and the opposite surfaces of the four guide rails are slidingly connected to the outer walls of the left and right parts of the rolling mechanism 1 and the rolling mechanism 2 respectively.

[0011] Preferably, the second rolling mechanism includes two auxiliary movable components, the front and rear sides of the two auxiliary movable components are respectively slidably connected to the opposite surfaces of the four guide rails, the opposite surfaces of the two auxiliary movable components are rotatably connected with the second extrusion roller, and the inner cavities of the opposite parts of the two auxiliary movable components are respectively threadedly connected to the outer walls of the upper parts of the two threaded rods.

[0012] Preferably, the rolling mechanism includes two auxiliary movable components, the front and rear sides of the two auxiliary movable components are respectively slidably connected to the opposite surfaces of the four guide rails, the opposite surfaces of the two auxiliary movable components are rotatably connected with an extrusion roller, and the inner cavities of the opposite parts of the two auxiliary movable components are respectively threadedly connected to the outer walls of the lower parts of the two threaded rods.

[0013] Preferably, the two auxiliary moving components include two fixed blocks, and the opposite surfaces of the two fixed blocks are rotatably connected to the left and right sides of the squeezing roller one respectively. The inner walls of the front and rear parts of the two fixed blocks are clamped with T-shaped blocks, and the four T-shaped blocks are fixedly connected to two U-shaped slides on the side away from the fixed blocks, and the two U-shaped slides are respectively located directly below the two fixed blocks, and the inner walls of the opposite parts of the two U-shaped slides are respectively threadedly connected to the outer walls of the lower parts of the two threaded rods.

[0014] Due to the adoption of the above technical solution, the present invention has achieved the following technical advancements compared to the prior art:

[0015] 1. The utility model provides a pole piece rolling device, which rolls the pole piece by squeezing roller 2 and squeezing roller 1. A smaller force Fb can be used to roll the pole piece, thereby extending the pole piece. By reducing the force acting on the pole piece, the pole piece is prevented from being damaged and the frequency of belt breakage is reduced.

[0016] 2. The utility model provides a pole piece rolling device, which enables the squeeze roller 1 and the squeeze roller 2 to move toward each other through the action of a motor, a toothed pulley, a threaded rod and a synchronous toothed belt, so that the distance between the squeeze roller 1 and the squeeze roller 2 can be adjusted according to demand. The guide rail enables the squeeze roller 1 and the squeeze roller 2 to move stably, thereby ensuring the stability of movement and preventing displacement, thereby improving the rolling quality, facilitating promotion and use, and saving resources. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural diagram of the utility model;

[0018] Figure 2It is a schematic diagram of the cross-sectional structure of the utility model;

[0019] Figure 3 This is a schematic cross-sectional view of the adjustment assembly of the present invention;

[0020] Figure 4 For this utility model Figure 3 A in the middle is an enlarged structural diagram;

[0021] Figure 5 It is a structural schematic diagram of the roller pressing mechanism 1 and the roller pressing mechanism 2 of the utility model;

[0022] Figure 6 This is a structural diagram of the auxiliary moving component 1 of the present invention.

[0023] In the figure: 1. Support base; 2. Adjustment assembly; 3. Rolling mechanism 1; 4. Rolling mechanism 2; 5. Pole piece; 21. U-shaped frame; 22. Threaded rod; 23. Toothed pulley; 24. Synchronous toothed belt; 25. Motor; 26. Guide rail; 31. Squeeze roller 1; 32. Auxiliary moving assembly 1; 321. Fixed block; 322. T-shaped block; 323. U-shaped slide; 41. Squeeze roller 2; 42. Auxiliary moving assembly. DETAILED DESCRIPTION

[0024] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0025] like Figure 1 、 Figure 2 As shown, the pole piece rolling device includes a support base 1, an adjustment component 2 is fixedly connected to the upper surface of the support base 1, a rolling mechanism 2 slidably connected to the inner wall of the adjustment component 2, a pole piece 5 is overlapped on the lower surface of the outer wall of the middle part of the rolling mechanism 2 4, and a rolling mechanism 3 is overlapped on the inner wall of the pole piece 5, and the outer walls of the left and right parts of the rolling mechanism 3 are respectively slidably connected to the inner wall of the adjustment component 2;

[0026] First, the electrode 5 is placed between the rolling mechanism 1 3 and the rolling mechanism 2 4, and then the distance between the rolling mechanism 1 3 and the rolling mechanism 2 4 is adjusted through the action of the adjustment component 2. After the adjustment, the electrode 5 can be rolled under the action of the rolling mechanism 1 3 and the rolling mechanism 2 4, thereby completing the processing.

[0027] like Figure 3As shown, the adjustment assembly 2 includes a U-shaped frame 21, the lower surface of the U-shaped frame 21 is fixedly connected to the upper surface of the support base 1, and the inner walls of the left and right parts of the U-shaped frame 21 are rotatably connected to threaded rods 22. The outer walls of the upper and lower parts of the two threaded rods 22 are respectively threadedly connected to the inner cavities of the left and right parts of the rolling mechanism 1 3 and the rolling mechanism 2 4, and the threads of the upper and lower outer walls of the threaded rods 22 are opposite;

[0028] Since the threads of the outer walls of the upper and lower parts of the threaded rod 22 are opposite, the distance between the squeezing roller 1 31 and the squeezing roller 2 41 can be adjusted according to demand under the action of the two threaded rods 22, thereby facilitating promotion and use.

[0029] like Figure 4 As shown, the upper surfaces of the two threaded rods 22 are fixedly connected to toothed pulleys 23, the outer walls of the two toothed pulleys 23 are engaged with synchronous toothed belts 24, the outer wall of the synchronous toothed belt 24 is slidably connected to the inner cavity of the upper part of the U-shaped frame 21, and the inner wall of the upper left part of the U-shaped frame 21 is fixedly connected to the motor 25, and the output end of the motor 25 is fixedly connected to the upper surface of the toothed pulley 23 located on the left part;

[0030] Through the action of the motor 25, the toothed belt pulley 23 can drive the threaded rod 22 to rotate. At the same time, under the action of the synchronous toothed belt 24, the toothed belt pulley 23 and the threaded rod 22 on the right part can rotate synchronously, thereby facilitating the adjustment of the squeezing roller 1 31 and the squeezing roller 2 41, thereby saving resources.

[0031] The front and rear sides of the inner walls of the left and right parts of the U-shaped frame 21 are fixedly connected with guide rails 26, and the opposite surfaces of the four guide rails 26 are respectively slidably connected to the outer walls of the left and right parts of the rolling mechanism 1 3 and the rolling mechanism 2 4;

[0032] Through the action of the guide rail 26, the squeezing roller 1 31 and the squeezing roller 2 41 can move stably, thereby ensuring the movement stability and preventing displacement, thereby improving the rolling quality.

[0033] like Figure 5 As shown, the rolling mechanism 2 4 includes two auxiliary moving assemblies 42, the front and rear sides of the two auxiliary moving assemblies 42 are respectively slidably connected to the opposite surfaces of the four guide rails 26, the opposite surfaces of the two auxiliary moving assemblies 42 are rotatably connected to the squeezing roller 2 41, and the inner cavities of the opposite parts of the two auxiliary moving assemblies 42 are respectively threadedly connected to the outer walls of the upper parts of the two threaded rods 22; the rolling mechanism 1 3 includes two auxiliary moving assemblies 1 32, the front and rear sides of the two auxiliary moving assemblies 1 32 are respectively slidably connected to the opposite surfaces of the four guide rails 26, the opposite surfaces of the two auxiliary moving assemblies 1 32 are rotatably connected to the squeezing roller 1 31, and the inner cavities of the opposite parts of the two auxiliary moving assemblies 1 32 are respectively threadedly connected to the outer walls of the lower parts of the two threaded rods 22;

[0034] By rolling the pole piece 5 with the squeezing roller 2 41 and the squeezing roller 1 31 , a smaller force Fb can be used to roll the pole piece 5 , often Fb≤100N, so that the pole piece 5 is extended. By reducing the force acting on the pole piece 5 , the pole piece 5 is not damaged and the frequency of tape breakage is reduced to about 1 time / 100,000 meters.

[0035] like Figure 6 As shown, the two auxiliary moving assemblies 1 32 include two fixed blocks 321. The opposite surfaces of the two fixed blocks 321 are rotatably connected to the left and right sides of the squeezing roller 1 31 respectively. The inner walls of the front and rear parts of the two fixed blocks 321 are clamped with T-shaped clamping blocks 322. The four T-shaped clamping blocks 322 are fixedly connected to two U-shaped slides 323 on the side away from the fixed blocks 321. The two U-shaped slides 323 are respectively located directly below the two fixed blocks 321. The inner walls of the opposite parts of the two U-shaped slides 323 are respectively threadedly connected to the outer walls of the lower parts of the two threaded rods 22.

[0036] The fixing block 321 is clamped between the two T-shaped blocks 322, and then fixed between the two T-shaped blocks 322 under the action of the threaded rod and the nut, so that the fixing block 321 can drive the squeezing roller 31 to move up and down under the action of the U-shaped slide 323 and the threaded rod 22, thereby facilitating installation or disassembly, maintenance and replacement.

[0037] The working principle of the present invention is as follows: first, the pole piece 5 is placed between the squeezing roller 1 31 and the squeezing roller 2 41 , and then the motor 25 is used to enable the toothed pulley 23 to drive the threaded rod 22 to rotate. At the same time, under the action of the synchronous toothed belt 24, the toothed pulley 23 and the threaded rod 22 on the right part can rotate synchronously. Under the action of the two threaded rods 22, the squeezing roller 2 41 and the squeezing roller 1 31 can move toward each other, so that the distance between the squeezing roller 1 31 and the squeezing roller 2 41 can be adjusted according to demand. After adjustment, the pole piece 5 is rolled by the squeezing roller 2 41 and the squeezing roller 1 31. A smaller force Fb can be used to roll the pole piece 5, often Fb≤100N, so that the pole piece 5 is extended. By reducing the force acting on the pole piece 5, the pole piece 5 is not damaged and the frequency of belt breakage is reduced to about 1 time / 100,000 meters, thereby completing the processing.

[0038] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in this invention is defined by the appended claims and their equivalents.

Claims

1. A pole piece rolling device, comprising a support base (1), characterized in that: The upper surface of the support base (1) is fixedly connected to an adjustment component (2), the inner wall of the adjustment component (2) is slidably connected to a second rolling mechanism (4), the lower surface of the middle outer wall of the second rolling mechanism (4) is overlapped with a pole piece (5), the inner wall of the pole piece (5) is overlapped with a first rolling mechanism (3), and the outer walls of the left and right parts of the first rolling mechanism (3) are respectively slidably connected to the inner wall of the adjustment component (2).

2. The pole piece rolling device according to claim 1, characterized in that: The adjustment assembly (2) includes a U-shaped frame (21), the lower surface of the U-shaped frame (21) is fixedly connected to the upper surface of the support base (1), the inner walls of the left and right parts of the U-shaped frame (21) are rotatably connected to threaded rods (22), the outer walls of the upper and lower parts of the two threaded rods (22) are respectively threadedly connected to the inner cavities of the left and right parts of the rolling mechanism 1 (3) and the rolling mechanism 2 (4), and the threads of the outer walls of the upper and lower parts of the threaded rods (22) are opposite.

3. The pole piece rolling device according to claim 2, characterized in that: The upper surfaces of the two threaded rods (22) are fixedly connected to toothed pulleys (23), the outer walls of the two toothed pulleys (23) are meshed with synchronous toothed belts (24), the outer walls of the synchronous toothed belts (24) are slidably connected to the inner cavity of the upper part of the U-shaped frame (21), the inner wall of the upper left part of the U-shaped frame (21) is fixedly connected to a motor (25), and the output end of the motor (25) is fixedly connected to the upper surface of the toothed pulley (23) located on the left part.

4. The pole piece rolling device according to claim 3, characterized in that: The front and rear sides of the inner walls of the left and right parts of the U-shaped frame (21) are fixedly connected with guide rails (26), and the opposite surfaces of the four guide rails (26) are respectively slidably connected to the outer walls of the left and right parts of the rolling mechanism 1 (3) and the rolling mechanism 2 (4).

5. The pole piece rolling device according to claim 1, characterized in that: The second rolling mechanism (4) includes two auxiliary moving assemblies (42), the front and rear sides of the two auxiliary moving assemblies (42) are respectively slidably connected to the opposite surfaces of the four guide rails (26), the opposite surfaces of the two auxiliary moving assemblies (42) are rotatably connected to the second squeezing roller (41), and the inner cavities of the opposite parts of the two auxiliary moving assemblies (42) are respectively threadedly connected to the outer walls of the upper parts of the two threaded rods (22).

6. The pole piece rolling device according to claim 1, characterized in that: The rolling mechanism (3) includes two auxiliary movable components (32), the front and rear sides of the two auxiliary movable components (32) are respectively slidably connected to the opposite surfaces of the four guide rails (26), the opposite surfaces of the two auxiliary movable components (32) are rotatably connected to the squeezing roller (31), and the inner cavities of the opposite parts of the two auxiliary movable components (32) are respectively threadedly connected to the outer walls of the lower parts of the two threaded rods (22).

7. The pole piece rolling device according to claim 6, characterized in that: The two auxiliary moving components (32) include two fixed blocks (321), and the opposite surfaces of the two fixed blocks (321) are rotatably connected to the left and right sides of the squeezing roller (31) respectively. The inner walls of the front and rear parts of the two fixed blocks (321) are both clamped with T-shaped clamping blocks (322). The side of the four T-shaped clamping blocks (322) away from the fixed blocks (321) is fixedly connected with two U-shaped slides (323), and the two U-shaped slides (323) are respectively located directly below the two fixed blocks (321). The inner walls of the opposite parts of the two U-shaped slides (323) are respectively threadedly connected to the outer walls of the lower parts of the two threaded rods (22).

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