Pole piece tension adjusting device

Abstract

The utility model discloses a pole piece tension adjusting device which comprises an installation support, a driving mechanism, a rotating shaft, a swing rod, a swing rod shaft, a balance weight mechanism and an encoder, the rotating shaft is arranged in the installation support in a rotating mode, the driving mechanism is arranged on one side of the installation support and connected with the rotating shaft, and the balance weight mechanism is arranged on the other side of the installation support. The middle portion of the swing rod is fixedly connected with the rotating shaft, the swing rod shaft is arranged at one end of the swing rod, the balance weight mechanism is arranged at the other end of the swing rod, and the encoder is connected to the rear portion of the rotating shaft through a coupler. The tension adjusting device is exquisite in structure and high in stability, meets the tension adjusting requirement of the wide pole piece, can ensure that the pole piece cannot be deviated, wrinkled or deformed in the transportation process, and further improves the quality of the pole piece in the transportation process.

Description

Technical Field

[0001] The utility model relates to the technical field of battery manufacturing equipment, in particular to a pole piece tension regulating device. Background Art

[0002] During the battery manufacturing process, tension is required during the unwinding and transportation of the electrode. The stability of the tension is guaranteed to achieve stable transmission and improve the quality of the electrode unwinding.

[0003] Most of the current pole piece tension adjustment devices use a rocker arm and a motor to adjust the pole piece tension by controlling the movement of the rocker arm in the horizontal or vertical direction. However, for pole pieces with a large width, the existing pole piece tension adjustment devices are difficult to debug, and it is difficult to make the tension on both sides of the pole piece width consistent, resulting in adverse conditions such as offset during the pole piece walking process, further affecting the quality of winding. Utility Model Content

[0004] The main purpose of this utility model is to propose a pole piece tension adjustment device, which aims to improve the pole piece tension adjustment effect and efficiency, make the tension on both sides of the pole piece width consistent, avoid adverse conditions such as pole piece offset during tape walking, and improve the quality of winding.

[0005] To achieve the above-mentioned purpose, the utility model provides a pole piece tension adjustment device, including: a mounting bracket, a driving mechanism, a rotating shaft, a rocker arm, a rocker arm shaft, a counterweight mechanism and an encoder, the rotating shaft is rotatably arranged in the mounting bracket, the driving mechanism is arranged on one side of the mounting bracket and connected to the rotating shaft, the middle part of the rocker arm is fixedly connected to the rotating shaft, the rocker arm shaft is arranged at one end of the rocker arm, the counterweight mechanism is arranged at the other end of the rocker arm, and the encoder is connected to the rear of the rotating shaft through a coupling.

[0006] A further technical solution of the present invention is that the mounting bracket is circular-shaped.

[0007] A further technical solution of the present invention is that the mounting bracket includes two vertical plates arranged opposite to each other and two connecting rods arranged parallel to each other between the two vertical plates. The two connecting rods are respectively located at the upper and lower ends of the two vertical plates, and the rotating shaft is rotatably arranged between the two vertical plates.

[0008] A further technical solution of the present invention is that the counterweight mechanism includes a connecting rod connected between the two rocking arms and a counterweight block arranged on the connecting rod.

[0009] A further technical solution of the present invention is that the counterweight mechanism further includes a counterweight adjustment block arranged on one side of the counterweight block on the rocker arm.

[0010] A further technical solution of the present invention is that the driving mechanism includes a driving cylinder and a driving rod, one end of the driving rod is connected to the output end of the driving cylinder, and the other end is connected to one end of the rotating shaft.

[0011] A further technical solution of the present invention is that the length ratio of the driving rod to the rocker rod is 2:3.

[0012] A further technical solution of the present invention is that the driving mechanism further includes a pressure regulating valve connected to the driving cylinder.

[0013] Compared with the electrode tension adjustment device in the prior art, the utility model has a sophisticated structure and high stability, which is suitable for the tension adjustment requirements of wide-width electrodes. It can ensure that no adverse conditions such as offset, wrinkles or deformation will occur during the transportation of the electrode, further improving the quality of the electrode transportation process. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0015] Figure 1 This is a schematic diagram of the overall structure of a preferred embodiment of the pole piece tension adjustment device of the utility model;

[0016] Figure 2 This is a side view of a preferred embodiment of the pole piece tension adjustment device of the utility model and a schematic diagram of the usage state;

[0017] Description of Figure Numbers:

[0018] Driving rod 1; rocker arm 2; driving cylinder 3; counterweight block 4; rotating shaft 5; rocker arm shaft 6; mounting bracket 7; encoder 8; counterweight adjustment block 9; pressure regulating valve 10.

[0019] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0021] The utility model provides a pole piece tension regulating device, which is mainly used for controlling the tension during the pole piece unwinding process to achieve a stable unwinding shape.

[0022] Please refer to Figure 1 and Figure 2 A preferred embodiment of the pole piece tension adjustment device of the present invention includes a mounting bracket 7, a driving mechanism, a rotating shaft 5, a rocker arm 2, a rocker arm shaft 6, a counterweight mechanism and an encoder 8. The rotating shaft 5 is rotatably arranged in the mounting bracket 7, the driving mechanism is arranged on one side of the mounting bracket 7 and is connected to the rotating shaft 5, the middle part of the rocker arm 2 is fixedly connected to the rotating shaft 5, the rocker arm shaft 6 is arranged at one end of the rocker arm 2, the counterweight mechanism is arranged at the other end of the rocker arm 2, and the encoder 8 is connected to the rear of the rotating shaft 5 through a coupling.

[0023] In this embodiment, the mounting bracket 7 is circular in shape.

[0024] The mounting bracket 7 includes two vertical plates arranged opposite to each other and two connecting rods arranged in parallel between the two vertical plates. The two connecting rods are respectively located at the upper end and the lower end of the two vertical plates. The rotating shaft 5 is rotatably arranged between the two vertical plates.

[0025] In this embodiment, the counterweight mechanism includes a connecting rod connected between the two rocking arms 2 and a counterweight block 4 provided on the connecting rod.

[0026] As an implementation scheme, in this embodiment, the counterweight mechanism further includes a counterweight adjustment block 9 provided on the rocker arm 2 at one side of the counterweight block 4 .

[0027] The driving mechanism includes a driving cylinder 3 and a driving rod 1 . One end of the driving rod 1 is connected to the output end of the driving cylinder 3 , and the other end is connected to one end of the rotating shaft 5 .

[0028] The length ratio of the driving rod 1 to the rocker rod 2 is 2:3.

[0029] In this embodiment, the driving mechanism further includes a pressure regulating valve 10 connected to the driving cylinder 3 .

[0030] The following combination Figure 1 and Figure 2 The structure and working principle of the pole piece tension adjustment device of the utility model are further elaborated in detail.

[0031] The pole piece tension regulating device of the utility model is used to realize tension control during the pole piece unwinding process, thereby ensuring the stability of the pole piece unwinding.

[0032] The mounting bracket 7 is composed of two vertical plates and two connecting rods to form a U-shaped whole. Its function is to ensure the overall stability. A rotating shaft 5 is installed at the center of the two vertical plates. The rotating shaft 5 is connected by multiple rocker arms 2. A counterweight block 4 is provided on one side of the rocker arm 2, and a rocker arm shaft 6 is provided on the other side. Among them, the rocker arm 2 on one side of the counterweight block 4 is installed with an adjustable counterweight adjustment block 9, which is used to cooperate with the counterweight block 4 to balance the weight of the rocker arm shaft 6, so that the tension rocker arm 2 as a whole is not affected by its own weight.

[0033] A drive cylinder 3 is mounted behind the rotating shaft 5 and connected to the rotating shaft 5 via a drive rod 1. The drive portion utilizes a low-friction cylinder or motor. When using the drive cylinder 3, a pressure regulating valve 10 is required to ensure stable output of the driving force. The length ratio of the drive rod 1 to the rocker arm 2 is 2:3. This allows the pole piece tension adjustment device to utilize a cylinder with a smaller stroke while still meeting the stroke of the rocker arm 6. This reduces the selection requirements for the drive cylinder 3 and reduces costs. An encoder 8 is connected to the rear of the rotating shaft 5 via a coupling. Its function is to detect the rotation angle of the rocker arm 6 and provide feedback on the tension adjustment level.

[0034] Compared with the electrode tension adjustment device in the prior art, the utility model has a sophisticated structure and high stability, which is suitable for the tension adjustment requirements of wide-width electrodes. It can ensure that no adverse conditions such as offset, wrinkles or deformation will occur during the transportation of the electrode, further improving the quality of the electrode transportation process.

[0035] The above description is only a preferred embodiment of the present invention and does not limit the patent scope of the present invention. All equivalent structural transformations made based on the contents of the present invention specification and drawings, or direct / indirect application in other related technical fields, are included in the patent protection scope of the present invention.

Claims

1. A pole piece tension adjustment device, characterized in that: include: The mounting bracket, the driving mechanism, the rotating shaft, the rocker arm, the rocker arm shaft, the counterweight mechanism and the encoder are provided. The rotating shaft is rotatably arranged in the mounting bracket. The driving mechanism is provided on one side of the mounting bracket and is connected to the rotating shaft. The middle part of the rocker arm is fixedly connected to the rotating shaft. The rocker arm shaft is provided at one end of the rocker arm. The counterweight mechanism is provided at the other end of the rocker arm. The encoder is connected to the rear of the rotating shaft through a coupling.

2. The pole piece tension adjustment device according to claim 1, characterized in that: The mounting bracket is circular-shaped.

3. The pole piece tension adjustment device according to claim 2, characterized in that: The mounting bracket includes two vertical plates arranged opposite to each other and two connecting rods arranged in parallel between the two vertical plates. The two connecting rods are respectively located at the upper end and the lower end of the two vertical plates. The rotating shaft is rotatably arranged between the two vertical plates.

4. The pole piece tension adjustment device according to claim 3, characterized in that: The counterweight mechanism includes a connecting rod connected between the two rocking rods and a counterweight block arranged on the connecting rod.

5. The pole piece tension adjustment device according to claim 4, characterized in that: The counterweight mechanism further includes a counterweight adjustment block arranged on the rocker arm at one side of the counterweight block.

6. The pole piece tension adjustment device according to claim 1, characterized in that: The driving mechanism includes a driving cylinder and a driving rod, one end of the driving rod is connected to the output end of the driving cylinder, and the other end of the driving rod is connected to one end of the rotating shaft.

7. The pole piece tension adjustment device according to claim 6, characterized in that: The length ratio of the driving rod to the rocker rod is 2:

3.

8. The pole piece tension adjustment device according to claim 6, characterized in that: The driving mechanism further includes a pressure regulating valve connected to the driving cylinder.

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