Roller transmission speed compensation mechanism

Abstract

The utility model relates to a roller passing transmission speed compensation mechanism which comprises a main driving assembly, a transmission part and a roller passing assembly, the main driving assembly and the roller passing assembly are installed on a machine frame, the main driving assembly is connected with the roller passing assembly through the transmission part, and the main driving assembly comprises a main driving roller, a transmission shaft, a motor, a driving wheel and an installation base. The mounting seat is mounted on the rack, the motor is mounted on the mounting seat, the main driving roller and the driving wheel are fixedly arranged on the transmission shaft, the transmission part is connected with the driving wheel, and the motor drives the transmission shaft to rotate. According to the passing roller transmission speed compensation mechanism, the main driving assembly and the passing roller assembly are connected through the transmission piece, it is guaranteed that the main driving assembly and the passing roller assembly can rotate synchronously when transmitting pole pieces, the reverse acting force on the pole pieces caused by passing roller inertia can be greatly reduced, the passing roller of 150 mm is adopted for transmitting the pole pieces, the pole lug turnover probability is reduced by 50%, and the pole piece transmission speed is improved. The passing roller is installed in a two-end fixing mode, and the strength of the passing roller is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of lithium battery production, in particular to a roller transmission speed compensation mechanism. Background Art

[0002] At present, winding is an important process in the production of metal ion battery cells, especially lithium battery cells. The semi-finished product after winding is a solid cylinder made of multi-layer film materials and electrode sheets rolled along a fixed longitudinal axis, commonly known as a (lithium) battery cell. In the current domestic lithium battery industry, the shape, structure, and size of lithium battery cells are regulated, but there are many winding methods and equipment. According to the different winding methods and the degree of automation of the equipment, the winding equipment is mainly divided into fully automatic winding machines, semi-automatic winding machines, and manual winding machines.

[0003] In terms of the tape-feeding system, compared with the 60mm or 80mm rollers of traditional winding machines, we use a larger diameter roller system, and upgrade the roller diameter of the pole piece tape-feeding to 150mm. Through data comparison, it can be concluded that compared with the 80mm roller, the probability of the pole ear folding of the 150mm roller is reduced by 50%. Of course, the increase in roller diameter will inevitably lead to an increase in roller weight and inertia due to the roller inertia. When the equipment accelerates, the roller will pull the material in the opposite direction due to inertia, resulting in the inability to increase acceleration, and the tension will increase invisibly. When the equipment decelerates, the roller will rush forward due to inertia, causing the material to detach from the roller. Therefore, the roller cannot decelerate too fast, which affects production efficiency. Utility Model Content

[0004] The main purpose of the utility model is to provide a roller transmission speed compensation mechanism to solve the above technical problems and significantly reduce the reverse force on the pole piece caused by the roller inertia.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A roller transmission speed compensation mechanism includes a main drive assembly, a transmission member and a roller assembly, wherein the main drive assembly and the roller assembly are mounted on a frame, the main drive assembly is connected to the roller assembly through the transmission member, the main drive assembly includes a main drive roller, a transmission shaft, a motor, a driving wheel and a mounting seat, the mounting seat is mounted on the frame, the motor is mounted on the mounting seat, the main drive roller and the driving wheel are fixed on the transmission shaft, the transmission member is connected to the driving wheel, and the motor drives the transmission shaft to rotate.

[0007] As a preferred technical solution, the roller assembly includes a roller, a roller shaft and a driven wheel, the roller and the driven wheel are fixed on the roller shaft, and the driven wheel is connected to the driving wheel through the transmission member.

[0008] As a preferred technical solution, both ends of the transmission shaft and the roller shaft are respectively provided with shaft sleeves, and the shaft sleeves are mounted on the frame.

[0009] As a preferred technical solution, the diameter of the roller is ≥150 mm.

[0010] As a preferred technical solution, the transmission member is a chain or a belt.

[0011] As a preferred technical solution, it further includes a tensioning assembly, and the tensioning assembly abuts against the transmission member.

[0012] As a preferred technical solution, the tensioning assembly includes a tensioning wheel and a tensioning mounting seat, the tensioning mounting seat is mounted on the frame, the tensioning wheel is rotatably disposed on the tensioning mounting seat, and the tensioning wheel abuts against the transmission member.

[0013] As a preferred technical solution, it further includes a clamping assembly, which abuts against the main driving assembly.

[0014] As a preferred technical solution, the clamping assembly includes a pressure roller, a pressure roller shaft, a pressure roller shaft mounting seat and a pressure roller cylinder, the pressure roller is fixed on the pressure roller shaft, both ends of the pressure roller shaft are mounted on the pressure roller shaft mounting seat, and the pressure roller cylinder drives the pressure roller shaft mounting seat to move.

[0015] The beneficial effects of the utility model are as follows: the above-mentioned roller transmission speed compensation mechanism connects the main drive assembly and the roller assembly through a transmission part, ensuring that the main drive assembly and the roller assembly can rotate synchronously when transmitting the pole piece, which can greatly reduce the reverse force on the pole piece caused by the inertia of the roller, and can achieve rapid deceleration, thereby improving production efficiency. A 150mm roller is used to transmit the pole piece, and the probability of the pole ear folding is reduced by 50%. The roller is installed in a fixed manner at both ends to improve the strength of the roller. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the roller transmission speed compensation mechanism involved in the utility model;

[0017] Figure 2 It is a side view of the roller transmission speed compensation mechanism involved in the utility model. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0019] Please combine Figure 1 and Figure 2 As shown, a roller transmission speed compensation mechanism includes a main drive component 1, a transmission member 3, a roller assembly 2, a tensioning component 4 and a pressing component 5. The main drive component 1, the roller assembly 2, the tensioning component 4 and the pressing component 5 are installed on a frame. The main drive component 1 is connected to the roller assembly 2 through the transmission member 3. The roller assembly 2 is provided with multiple, and the main drive component 1 and the multiple roller assemblies 2 jointly drive the pole pieces. In this embodiment, the transmission member 3 is a chain or a belt, which is used to transmit the power of the main drive component 1 to the roller assembly 2, so that the main drive component 1 and the roller assembly 2 rotate synchronously, which can greatly reduce the reverse force on the material caused by the roller inertia.

[0020] The main driving assembly 1 includes a main driving roller 14, a transmission shaft 13, a motor 11, a driving wheel 16, a first sleeve 15 and a mounting seat 12. The mounting seat 12 and the first sleeve 15 are installed on the frame, the motor 11 is installed on the mounting seat 12, and the first sleeve 15 is installed to both ends of the transmission shaft 13 so that the transmission shaft 13 can rotate freely. The main driving roller 14 and the driving wheel 16 are fixed on the transmission shaft 13, the transmission member 3 is connected to the driving wheel 16, and the motor 11 drives the transmission shaft 13 to rotate, thereby driving the main driving roller 14 to rotate to transmit the pole piece.

[0021] The roller assembly 2 includes a roller 21, a roller shaft 22, a driven wheel 24 and a second sleeve 23. The roller 21 and the driven wheel 24 are fixed on the roller shaft 22. The driven wheel 24 is connected to the driving wheel 16 through a transmission member 3. The second sleeve 23 is installed on the frame, and the second sleeve 23 is sleeved on both ends of the roller shaft 22. The diameter of the roller 21 and the main driving roller 14 is ≥150mm. Compared with the 80mm roller, the 150mm roller 21 is used to transmit the pole piece, and the probability of the pole ear folding is reduced by 50%. The roller shaft 22 is supported at both ends. Compared with the traditional single cantilever structure, the strength of the roller shaft 22 is increased by 100%.

[0022] The tensioning assembly 4 includes a tensioning wheel 42 and a tensioning mounting seat 41. The tensioning mounting seat 41 is installed on the frame. The tensioning wheel 42 is rotatably set on the tensioning mounting seat 41. The tensioning wheel 41 abuts against the transmission member 3 to keep the transmission member 3 tensioned, increase the contact area between the transmission member 3 and the driving wheel 16 and the transmission wheel 24, and prevent the transmission member 3 from slipping.

[0023] The pressing assembly 5 includes a pressing roller 51, a pressing roller shaft 52, a pressing roller shaft mounting seat 53 and a pressing roller cylinder 54. The pressing roller 51 is fixed on the pressing roller shaft 52, and both ends of the pressing roller shaft 52 are mounted on the pressing roller shaft mounting seat 53. The pressing roller cylinder 54 drives the pressing roller shaft mounting seat 53 to move, thereby pressing the pole piece to the surface of the active roller 14.

[0024] The above-described embodiments are only preferred examples of the present invention and are not intended to limit the scope of implementation of the present invention. Therefore, any equivalent changes or modifications made based on the structures, features and principles described in the patent application scope of the present invention should be included in the scope of the patent application of the present invention.

Claims

1. A roller transmission speed compensation mechanism, characterized in that: It includes a main driving assembly, a transmission member and a roller assembly, the main driving assembly and the roller assembly are installed on a frame, the main driving assembly is connected to the roller assembly through the transmission member, the main driving assembly includes a main driving roller, a transmission shaft, a motor, a driving wheel and a mounting seat, the mounting seat is installed on the frame, the motor is installed on the mounting seat, the main driving roller and the driving wheel are fixed on the transmission shaft, the transmission member is connected to the driving wheel, and the motor drives the transmission shaft to rotate.

2. The roller transmission speed compensation mechanism according to claim 1, characterized in that: The roller assembly comprises a roller, a roller shaft and a driven wheel. The roller and the driven wheel are fixed on the roller shaft, and the driven wheel is connected to the driving wheel through the transmission member.

3. The roller transmission speed compensation mechanism according to claim 2, characterized in that: Both ends of the transmission shaft and the roller shaft are respectively provided with shaft sleeves, and the shaft sleeves are installed on the frame.

4. The roller transmission speed compensation mechanism according to claim 3 is characterized in that: The diameter of the roller is ≥150 mm.

5. The roller transmission speed compensation mechanism according to claim 4, characterized in that: The transmission member is a chain or a belt.

6. The roller transmission speed compensation mechanism according to claim 5, characterized in that: It further comprises a tensioning assembly, and the tensioning assembly abuts against the transmission member.

7. The roller transmission speed compensation mechanism according to claim 6, characterized in that: The tensioning assembly comprises a tensioning wheel and a tensioning mounting seat, wherein the tensioning mounting seat is mounted on a frame, the tensioning wheel is rotatably arranged on the tensioning mounting seat, and the tensioning wheel abuts against the transmission member.

8. The roller transmission speed compensation mechanism according to claim 5, characterized in that: It further includes a clamping assembly, which abuts against the main driving assembly.

9. The roller transmission speed compensation mechanism according to claim 8, characterized in that: The clamping assembly includes a pressure roller, a pressure roller shaft, a pressure roller shaft mounting seat and a pressure roller cylinder. The pressure roller is fixed on the pressure roller shaft, both ends of the pressure roller shaft are mounted on the pressure roller shaft mounting seat, and the pressure roller cylinder drives the pressure roller shaft mounting seat to move.

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