Lithium battery pole piece threading mechanism

Abstract

A lithium battery pole piece threading mechanism comprises a guide steel wire, a threading rod, a driving assembly and an idle wheel assembly. The guide steel wire is arranged along the threading path; two ends of the threading rod are respectively fixed between the two guide steel wires, and the threading rod is externally connected with the head of the pole piece. The driving assembly comprises a servo motor, a driving wheel, a follower wheel and a traction shaft; the driving wheels are in transmission connection with the output end of the servo motor, the driving wheels are arranged in pairs at intervals, and the traction shaft is connected between the pair of driving wheels; a limiting groove is formed in the circumferential surface of the driving wheel, and the guiding steel wire is arranged in the limiting groove in a sleeved mode. The follower wheels are arranged in pairs at intervals and located beside the driving wheel, and the follower wheels and the driving wheel are matched to clamp and guide the steel wire. The idle wheel assembly comprises a first idle wheel and a second idle wheel, a limiting notch is formed in the second idle wheel in the circumferential direction, and the guide steel wire is arranged in the limiting notch in a sleeved mode and clamped. According to the threading mechanism, the motor drives the driving wheel to further drive the guide steel wire and the threading rod, the threading speed is uniform, and the efficiency is high.

Description

Technical Field

[0001] This utility model relates to the field of lithium battery cell production technology, and in particular to a lithium battery electrode threading mechanism. Background Technology

[0002] In the lithium battery production process, the electrodes used for winding need to undergo processes such as coating, rolling, and slitting. During the coating, rolling, and slitting processes, the electrode heads need to be pulled along a threading path inside the equipment for threading. In open equipment, the electrodes can be threaded manually, but on electrode coating production lines, the electrodes need to pass through relatively enclosed equipment such as ovens. In such enclosed equipment, a threading mechanism is required to pull the electrodes through the wires.

[0003] Traditional lithium battery electrode threading mechanisms have the following drawbacks:

[0004] 1. Along the entire belt threading path, the various steering components are connected by sprockets and chains, and the belt threading is generally driven by a manual crank. The belt threading efficiency is low, and the chain is prone to slippage or breakage when the force is uneven.

[0005] 2. The manual crank has a limited driving speed. If the tape threading path is long, a lot of manpower is needed to complete the tape threading operation. At the same time, it is difficult to ensure a uniform speed when manually turning the crank, resulting in uneven tape threading speed, which is difficult to match well with the processing actions of equipment such as coating and drying. Utility Model Content

[0006] In view of the shortcomings of the prior art, this utility model provides a lithium battery electrode threading mechanism to overcome the deficiencies in the prior art.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A lithium battery electrode threading mechanism includes a guide wire, a threading rod, a drive assembly, and an idler wheel assembly.

[0009] The guide wire is provided in two strands, which are arranged in parallel and corresponding manner along the threading path, and each guide wire is a closed loop with the beginning and end connected.

[0010] The two ends of the threading rod are respectively fixed between two guide steel wires, and the head of the electrode plate is connected to the outside of the threading rod;

[0011] The drive assembly includes a servo motor, a drive wheel, a follower wheel, and a traction shaft;

[0012] The drive wheel is connected to the output end of the servo motor. The drive wheels are arranged in pairs at intervals, and the traction shaft is connected between the pair of drive wheels. A limit groove is provided on the circumferential surface of the drive wheel, and the guide wire is sleeved in the limit groove.

[0013] The follower wheels are arranged in pairs at intervals, and the follower wheels are located next to the drive wheels. The follower wheels cooperate with the drive wheels to clamp the guide steel wire.

[0014] The idler wheel assembly is distributed along the threading path and causes the guide wire to turn multiple times; the idler wheel assembly includes a first idler wheel and a second idler wheel, the second idler wheel is provided with a limiting notch in the circumferential direction, the guide wire is sleeved in the limiting notch, and the first idler wheel and the second idler wheel cooperate to clamp the guide wire.

[0015] Furthermore, the idler wheel assembly also includes an idler wheel seat and a tension spring; the first idler wheel and the second idler wheel are arranged adjacent to each other on the idler wheel seat; one end of the tension spring is connected to the idler wheel seat, and the other end is connected to the first idler wheel.

[0016] Preferably, the end of the threading rod is provided with a fixing hole, a clamping block and a threaded hole; the guide wire is installed in the fixing hole and clamped by the clamping block.

[0017] Preferably, the second idler wheel is a gear, and each tooth of the second idler wheel is provided with the limiting notch.

[0018] Preferably, the drive assembly further includes a mounting wall panel, which is fixedly mounted on an external frame, and the servo motor is mounted on the outside of the mounting wall panel.

[0019] Preferably, the follower wheel is mounted on the mounting wall panel via a follower base.

[0020] Preferably, the first idler wheel is a cylindrical wheel.

[0021] Preferably, the threading rod is perpendicular to the two guide wires.

[0022] Preferably, the idler wheel seat is fixedly mounted on the outer plate of the processing equipment along the threading path.

[0023] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0024] 1) The lithium battery electrode threading mechanism of this case uses a servo motor to drive the drive wheel and follower wheel, which in turn drives the guide steel wire set along the threading path. The guide steel wire drives the threading rod. The servo motor drives the threading speed, which is uniform, efficient, and saves labor costs.

[0025] 2) The lithium battery electrode threading mechanism of this case has a limiting groove on the drive wheel and a limiting notch on the second idler wheel. Both the limiting groove and the limiting notch limit the guide wire, preventing the guide wire from falling off the drive wheel or the second idler wheel during movement, thus effectively ensuring the stability of the threading operation.

[0026] 3) In this case, a lithium battery electrode threading mechanism is provided with a tension spring connected to the first idler wheel in its idler wheel assembly. The tension of the tension spring is adjustable. When the tension of the guide wire is too large, the tension spring will be compressed to prevent the guide wire from breaking, thereby further ensuring the stability of the threading operation.

[0027] To provide a clearer understanding of this invention, the preferred embodiments of this invention will be described below in conjunction with the accompanying drawings. Attached Figure Description

[0028] Figure 1 This is a reference diagram showing the usage state of this utility model;

[0029] Figure 2 This is a schematic diagram of the structure of the drive component of the utility model;

[0030] Figure 3 This is a schematic diagram of the idler wheel assembly of the utility model;

[0031] Figure 4 This is a schematic diagram of the strap-threading rod of the utility model.

[0032] Attached image labels:

[0033] 1-Guide wire, 2-Threading rod, 3-Drive assembly, 4-Idler wheel assembly; 21-Fixing hole, 22-Clamping block, 23-Threaded hole; 31-Assembly wall panel, 32-Servo motor, 33-Drive wheel, 34-Follower wheel, 35-Traction shaft, 331-Limiting groove; 41-Idler wheel seat, 42-First idler wheel, 43-Second idler wheel, 44-Tension spring, 431-Limiting notch. Detailed Implementation

[0034] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0035] Furthermore, if terms such as "first" or "second" are used for descriptive purposes only, they are mainly used to distinguish different devices, components or parts (the specific types and structures may be the same or different), and are not used to indicate or imply the relative importance or quantity of the indicated devices, components or parts, and should not be construed as indicating or implying relative importance.

[0036] Furthermore, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0037] Please also refer to Figure 1-4 This utility model provides a lithium battery electrode threading mechanism, including a guide wire 1, a threading rod 2, a drive assembly (3) and an idler wheel assembly (4).

[0038] The guide wire 1 consists of two strands, which are arranged parallel to each other along the threading path, and each guide wire 1 is a closed loop with its ends connected.

[0039] The threading rod 2 has a fixing hole 21, a clamping block 22, and a threaded hole 23 at its end. The guide wire 1 is installed in the fixing hole 21. By tightening the screw in the threaded hole 23, the clamping block 22 can clamp the guide wire 1, so that the two ends of the threading rod 2 are respectively fixed between the two guide wires 1, and the threading rod 2 is perpendicular to the two guide wires 1. The threading rod 2 is used to connect the head of the external electrode. The guide wire 1 carries the threading rod 2 along the threading path from the starting point to the end point, which can drive the electrode to complete the threading operation.

[0040] The drive assembly (3) is used to drive the guide wire 1 to move along the threading path. The drive assembly (3) includes: mounting wall panel 31, servo motor 32, drive wheel 33, follower wheel 34 and traction shaft 35.

[0041] The wall panel 31 is fixedly mounted on an external frame;

[0042] Servo motor 32 is installed on the outside of the mounting wall panel 31. By controlling the forward and reverse rotation of servo motor 32, the drive wheel 33 is driven, which in turn controls the forward and backward movement of guide wire 1, thereby driving the pole piece on the threading rod 2 to move forward and backward to complete the threading operation. After the threading is completed, the pole piece is removed, servo motor 32 reverses, and threading rod 2 returns to the initial position, waiting for the next threading.

[0043] The drive wheel 33 is connected to the output end of the servo motor 32. The drive wheels 33 are arranged in pairs at intervals. The traction shaft 35 is connected between the pair of drive wheels 33. A limiting groove 331 is provided on the circumferential surface of the drive wheel 33. The guide wire 1 is sleeved in the limiting groove 331.

[0044] Follower wheels 34 are mounted on the mounting wall panel 31 via follower bases. Follower wheels 34 are arranged in pairs at intervals, and follower wheels 34 on the same side are located next to drive wheels 33 on the same side. Follower wheels 34 and drive wheels 33 cooperate to clamp guide wire 1, preventing guide wire 1 from falling out of the limiting groove 331 of drive wheel 33 when it moves.

[0045] The idler assembly (4) is distributed on the threading path and causes the guide wire 1 to turn multiple times so that the threading path meets the production requirements; the idler assembly (4) includes: idler seat 41, first idler 42, second idler 43 and tension spring 44;

[0046] The idler wheel seat 41 is fixedly installed on the outer plate of the processing equipment (such as coating equipment, rolling equipment, slitting equipment, drying equipment, etc.) along the tape threading path. The setting position of the idler wheel seat 41 can be adjusted according to the actual production needs, depending on the processing procedure or processing equipment, so as to form tape threading paths of different shapes.

[0047] The first idler wheel 42 and the second idler wheel 43 are rotatably mounted on the idler wheel seat 41. The second idler wheel 43 is provided with a limiting notch 431 in the circumferential direction. The guide wire 1 is sleeved in the limiting notch 431. The first idler wheel 42 and the second idler wheel 43 cooperate to clamp the guide wire 1, so as to prevent the guide wire 1 from falling out of the limiting notch 431 of the second idler wheel 43 when it moves.

[0048] Tension spring 44, one end of which is connected to idler wheel seat 41 and the other end of which is connected to first idler wheel 42. Under the action of tension spring 44, first idler wheel 42 and second idler wheel 43 always keep in contact and clamp guide wire 1. The tension of tension spring 44 is adjustable. When the tension of guide wire 1 is too large, tension spring 44 will be compressed to prevent guide wire 1 from breaking.

[0049] Preferably, in this embodiment, the first idler wheel 42 is a cylindrical wheel; the second idler wheel 43 is a gear, and each tooth of the second idler wheel 43 is provided with a corresponding limiting notch 431, and the guide wire 1 is sleeved in the limiting notch 431; when the threading rod 2 passes through the idler wheel assembly (4), the threading rod 2 can be inserted into the gap between two adjacent teeth on the second idler wheel 43, so as to avoid interference between the threading rod 2 and the first idler wheel 42 or the second idler wheel 43. As the second idler wheel 43 rotates, the threading rod 2 also passes over the previous second idler wheel 43 and moves towards the next second idler wheel 43, and finally completes the threading operation.

[0050] The working principle or process of the lithium battery electrode threading mechanism in this case is as follows:

[0051] Servo motor 32 drives drive wheel 33, follower wheel 34 rotates with drive wheel 33, drive wheel 33 drives guide wire 1 which is wrapped in limit groove 331 of drive wheel 33 to move forward or backward, several sets of idler wheel assembly (4) cause guide wire 1 to turn multiple times so that the threading path meets production requirements; guide wire 1 carries threading rod 2 forward or backward, and electrode head is fixed to threading rod 2 by adhesion or other means, threading rod 2 will carry electrode along threading path forward or backward, thus completing the threading operation.

[0052] Compared to existing technologies, the lithium battery electrode threading mechanism in this case uses a servo motor to drive a drive wheel and a follower wheel, which in turn drives a guide wire set along the threading path. The guide wire moves the threading rod, and the servo motor drive ensures uniform threading speed, high efficiency, and saves labor costs.

[0053] The embodiments described above are merely examples of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these modifications and improvements all fall within the protection scope of this utility model.

Claims

1. A lithium battery pole piece threading mechanism, comprising a guide steel wire (1), a threading rod (2), a driving assembly (3) and an idler assembly, characterized in that: the guide steel wire (1) is provided with two strands, the two strands of guide steel wire (1) are arranged in parallel along the threading path, and each strand of guide steel wire (1) is a closed loop with the tail connected to the head; the threading rod (2) is fixed at both ends between the two strands of guide steel wire (1), and the threading rod (2) is connected to the head of the pole piece; the driving assembly (3) comprises a servo motor (32), a driving wheel (33), a follower wheel (34) and a traction shaft (35); the driving wheel (33) is connected to the output end of the servo motor (32), the driving wheel (33) is arranged in pairs and is spaced apart, and the traction shaft (35) is connected between a pair of driving wheels (33); a limiting groove (331) is arranged on the circumferential surface of the driving wheel (33), and the guide steel wire (1) is sleeved in the limiting groove (331); the follower wheel (34) is arranged in pairs and is spaced apart, and the follower wheel (34) is located beside the driving wheel (33), and the follower wheel (34) and the driving wheel (33) cooperate to clamp the guide steel wire (1); the idler assembly (4) is dispersedly arranged on the threading path and promotes the guide steel wire (1) to turn multiple times; the idler assembly (4) comprises a first idler (42) and a second idler (43), a limiting gap (431) is arranged on the second idler (43) in the circumferential direction, the guide steel wire (1) is sleeved in the limiting gap (431), and the first idler (42) and the second idler (43) cooperate to clamp the guide steel wire (1).

2. The lithium battery pole piece threading mechanism according to claim 1, characterized in that: The idler assembly (4) further comprises an idler seat (41) and a tension spring (44); the first idler (42) and the second idler (43) are arranged adjacent to each other on the idler seat (41); one end of the tension spring (44) is connected to the idler seat (41), and the other end is connected to the first idler (42).

3. The lithium battery pole piece threading mechanism according to claim 1, characterized in that: The end of the threading rod (2) is provided with a fixing hole (21), a clamping block (22) and a threaded hole (23); the guide steel wire (1) is installed in the fixing hole (21) and clamped by the clamping block (22).

4. The lithium battery pole piece threading mechanism of claim 1, wherein: The second idler (43) is a gear, and the limiting gap (431) is arranged on each tooth of the second idler (43).

5. The lithium battery pole piece threading mechanism of claim 1, wherein: The driving assembly (3) further comprises an assembly wall plate (31), the assembly wall plate (31) is fixedly arranged on the outer plate of the connected rack, and the servo motor (32) is installed on the outer side of the assembly wall plate (31).

6. The lithium battery pole piece threading mechanism of claim 5, wherein: The follower wheel (34) is installed on the assembly wall plate (31) through a follower base.

7. The lithium battery pole piece threading mechanism of claim 1, wherein: The first idler (42) is a cylindrical wheel.

8. The lithium battery pole piece threading mechanism of claim 1, wherein: The threading rod (2) is perpendicular to the two strands of guide steel wire (1).

9. The lithium battery pole piece threading mechanism of claim 2, wherein: The idler seat (41) is fixedly installed on the outer plate of the processing equipment along the threading path.

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