Auxiliary deviation rectifying device for unwinding of electrode plate winding material

Abstract

The utility model relates to the technical field of lithium battery production, in particular to an electrode plate winding material unwinding auxiliary deviation rectifying device which comprises an installation rod, an installation support and a linear light source, the two ends of the installation rod are connected to the installation support in a clamped mode respectively, and the linear light source is connected to the installation rod in a clamped mode in a sliding mode. Two linear light sources are arranged on the mounting rod, the linear light sources are arranged on the mounting rod, the mounting rod is supported by the mounting bracket, and the linear light sources are aligned to the edge of the electrode plate coiled material, so that the deviation condition of the electrode plate coiled material can be found in time under the condition that an existing production line is not transformed, and a reference basis is provided for timely correction; normal operation of a production line is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of lithium battery production, and more specifically to an auxiliary deviation-correcting device for unwinding an electrode sheet coiled material. Background Art

[0002] The production and processing of electrode sheet coils in lithium batteries involves the process of winding and unwinding. Since the electrode sheet material is very thin, it is easy for the electrode sheet to deviate during the winding and unwinding process based on the production line operation process. If the deviation is not discovered and corrected in time, it will affect the subsequent process and damage the electrode sheet coil. Utility Model Content

[0003] One purpose of the utility model is to provide an auxiliary correction device for electrode sheet winding and unwinding material to solve the above-mentioned problem, comprising a mounting rod, a mounting bracket and a linear light source, wherein the two ends of the mounting rod are respectively clamped on the mounting bracket, the linear light source can be slidably clamped on the mounting rod, and two linear light sources are arranged on the mounting rod.

[0004] Furthermore, the linear light source is connected to the mounting rod via a snap-in assembly, the snap-in assembly comprises a first snap-in slot and a second snap-in slot, the linear light source is arranged in the first snap-in slot, and the second snap-in slot is snap-connected to the mounting rod.

[0005] Furthermore, the auxiliary deviation-correcting device further comprises a fine-tuning mechanism, and the fine-tuning mechanism comprises a sleeve, a connecting plate, a worm gear assembly and a locking bolt;

[0006] The sleeve is clamped in the first clamping groove, the linear light source is rotatably inserted into the sleeve, the worm gear is rotatably sleeved on the sleeve, the worm is installed on the clamping assembly through a connecting bracket and meshes with the worm gear, the connecting disk is connected to the linear light source, and the connecting disk is connected to the worm gear through the locking bolt.

[0007] Furthermore, an arc-shaped through groove is provided on the connecting plate, a threaded hole is provided on the side wall of the worm wheel, a threaded section of the locking bolt passes through the arc-shaped through groove and is screwed into the threaded hole, and the end of the locking bolt presses the connecting plate.

[0008] Further, the connecting bracket includes a U-shaped bracket, the worm is arranged inside the U-shaped bracket, and one end of the worm is provided with a driving joint extending to the outside of the U-shaped bracket;

[0009] The two side plates of the U-shaped bracket are fixed to the clamping assembly by bolts, and the bolt fixing position is between the first clamping slot and the second clamping slot.

[0010] Furthermore, the linear light source is a straight laser emitter or a cross laser emitter.

[0011] Furthermore, a bubble level is provided on the mounting rod, and the bubble level is arranged in the middle of the mounting rod.

[0012] As described above, the utility model is an auxiliary correction device for electrode sheet winding and unwinding, which arranges a linear light source on a mounting rod, and then supports the mounting rod with a mounting bracket, so that the linear light source is aimed at the edge of the electrode sheet coil. Without modifying the existing production line, the deviation of the electrode sheet coil can be detected in time, which provides a reference basis for timely correction and ensures the normal operation of the production line. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The present invention will be more fully understood through the following detailed description in conjunction with the accompanying drawings, in which like elements are numbered in a similar manner, wherein:

[0014] Figure 1 It is a schematic diagram of the overall structure of the auxiliary deviation-correcting device of an embodiment of the utility model;

[0015] Figure 2 This is a schematic diagram of the overall structure of the auxiliary deviation-correcting device of an embodiment of the utility model from another angle;

[0016] Figure 3 This is a schematic diagram of the structure of the clamping assembly and the fine-tuning mechanism of an embodiment of the utility model;

[0017] Figure 4 It is a schematic diagram of the relationship between the clamping assembly, the fine adjustment mechanism and the installation position of the linear light source in the embodiment of the utility model;

[0018] Figure 5 This is a schematic diagram of the split structure of the linear light source and part of the fine-tuning structure of an embodiment of the utility model;

[0019] Figure 6 It is a schematic diagram of the positional relationship and connection relationship of the clamping assembly and the connecting bracket of an embodiment of the utility model.

[0020] In the figure: 11-mounting bracket; 12-mounting rod; 13-bubble level; 21-linear light source; 30-clamping assembly; 31-first slot; 32-second slot; 33-connecting bracket; 40-fine-tuning mechanism; 41-worm; 411-drive joint; 42-worm gear; 421-threaded hole; 43-connecting plate; 44-locking bolt. DETAILED DESCRIPTION

[0021] The technical solution of the utility model is further described in detail below through embodiments and in combination with the accompanying drawings, but the utility model is not limited to the following embodiments.

[0022] Electrode sheet coils are important raw materials in the production and processing of lithium batteries. They are transported and stored in the form of rolls, so the production and use process involves the process of winding and unwinding. The material is very thin, and factors such as production line adjustment and mechanical vibration may cause the electrode sheet coil to deviate during winding and unwinding. Generally speaking, the initial deviation is small and difficult to detect. When the deviation accumulates to a level that can be seen at a glance, correcting the deviation may lead to new problems, such as uneven force on the electrode sheet coil leading to cracking.

[0023] Based on the above problems, when considering solutions, the inventors of the present application were first unwilling to directly modify the production line to control the problem of deviation in order to control costs. They were more willing to use simple auxiliary devices to promptly detect the deviation phenomenon, so they proposed to solve the above problem by contrasting with a linear light source 21.

[0024] This embodiment provides an auxiliary deviation correction device for unwinding an electrode sheet coil, such as Figure 1-6 As shown, it includes a mounting rod 12, a mounting bracket 11 and a linear light source 21. The two ends of the mounting rod 12 are respectively clamped on the mounting bracket 11. The linear light source 21 can be slidably clamped on the mounting rod 12. Two linear light sources 21 are arranged on the mounting rod 12.

[0025] When implementing this solution, considering the convenience of installation and adjustment, the installation rod 12 is a round rod, and the linear light source 21 is installed on the installation rod 12 by snap-fitting, so that both horizontal movement and vertical rotation adjustment can be carried out smoothly.

[0026] The mounting bracket 11 may adopt various brackets commonly used in the prior art. It should be noted that the mounting bracket 11 here can be installed in two ways. One of them is to connect the entire auxiliary correction device to the production line through the mounting bracket 11, such as Figure 1 The mounting bracket 11 shown includes a vertical rod and a connecting seat arranged at the lower end of the vertical rod. The connecting seat can be connected to the structural parts of the production line by bolts, and the mounting rod 12 is connected to the vertical rod by a clamp. In this way, the height of the mounting rod 12 on the mounting bracket 11 can be adjusted to adapt to different production lines, such as avoiding obstacles. Another method is to set a ground-mounted mounting bracket 11, for example, two tripods are set on the ground, and the two tripods are set up on both sides of the production line, and the mounting rod 12 is connected to the two tripods.

[0027] It should be noted that at the beginning of the design, only one linear light source 21 was set. In practice, it was found that the observation effect of a single linear light source 21 was not good, which would affect the accuracy of the observation. It is understandable that a single linear light source 21 can only aim at one side of the electrode sheet coil, that is, one edge. If the electrode sheet coil deviates toward the side away from the linear light source 21, then the observable feature is that the distance between the linear light source 21 and the electrode sheet coil increases. At the beginning of the deviation, this distance change is very small and difficult to be recognized by the naked eye. If the electrode sheet coil deviates toward the side close to the linear light source 21, then the electrode sheet coil will be illuminated by the linear light source 21. This feature can be seen at a glance, so a single linear light source 21 cannot completely solve the problem of auxiliary deviation correction. Setting two linear light sources 21 can ensure that when deviation occurs, no matter which side it deviates to, one side of the electrode sheet coil will be illuminated by the linear light source 21, so that a very intuitive judgment can be made to ensure that the deviation problem is discovered in a timely manner.

[0028] It should also be explained that the method of using the auxiliary correction device is to light the linear light source 21 after setting up the mounting bracket 11 and the mounting rod 12, and adjust the two linear light sources 21 to aim at the two sides of the electrode sheet coil by sliding left and right on the mounting rod 12. It should also be noted here that the linear light source 21 needs to be adjusted to be parallel to the edge of the electrode sheet coil, and then adjusted in relationship with the edge of the electrode sheet coil.

[0029] As a preferred solution, the linear light source 21 is connected to the mounting rod 12 via a snap-in assembly 30, and the snap-in assembly 30 includes two first snap-in slots 31 and second snap-in slots 32 that are staggered and arranged perpendicularly to each other. The linear light source 21 is arranged in the first snap-in slot 31, and the second snap-in slot 32 is snap-connected to the mounting rod 12.

[0030] The two slots are designed in the same way, that is, an opening is set, and a through slot is set in the middle of the opening. The shape and size of the through slot match the component to be installed. The opening is locked by bolt locking, and then the mounting rod 12 and the linear light source 21 are clamped. As in the above scheme, the mounting rod 12 is a round rod, so the through slot in the middle of the second slot 32 is set to be round. The bolt locking method can ensure the stability of the connection and can quickly adjust the tightness, which is convenient for adjusting the position of the linear light source 21 on the mounting rod 12.

[0031] As a preferred solution, the auxiliary deviation-correcting device further includes a fine-tuning mechanism 40, and the fine-tuning mechanism 40 includes a sleeve, a connecting plate 43, a worm gear assembly, and a locking bolt 44;

[0032] The sleeve is clamped in the first clamping groove 31, the linear light source 21 is rotatably inserted in the sleeve, the worm gear 42 is rotatably sleeved on the sleeve, the worm 41 is installed on the clamping assembly 30 through the connecting bracket 33 and meshes with the worm gear 42, the connecting disk 43 is connected to the linear light source 21, and the connecting disk 43 is connected to the worm gear 42 through the locking bolt 44.

[0033] As a preferred solution, an arc-shaped through groove is provided on the connecting plate 43, and a threaded hole 421 is provided on the side wall of the worm gear 42. The threaded section of the locking bolt 44 passes through the arc-shaped through groove and is screwed into the threaded hole 421, and the end of the locking bolt 44 presses the connecting plate 43.

[0034] Based on the characteristics of the linear light source 21, in order to aim at the edge of the electrode sheet coil, the most difficult point to adjust is to rotate the linear light source 21 so that the linear light source 21 can be parallel to the edge of the electrode sheet coil. If the linear light source 21 is directly rotated by hand, it is difficult to achieve a parallel state between the two. For this reason, a fine-tuning mechanism 40 is added. The specific use process is to connect the connecting disk 43 and the worm gear 42 through the locking bolt 44, and the connecting disk 43 is fixedly connected to the linear light source 21. The linear light source 21 can be driven to rotate by rotating the worm gear 42. It should be noted that the driving method of the worm gear 42 and the worm 41 has a certain reduction ratio, which can be controlled by adjusting the pitch and other dimensions of the two, so that the effect of fine-tuning can be achieved.

[0035] It should also be noted that the connection relationship between the worm gear 42 and the linear light source 21 is established by locking the bolt 44, with the aim of providing two adjustment states, coarse adjustment and fine adjustment, to improve the adjustment efficiency. Specifically, in the first stage, there is no connection relationship between the worm gear 42 and the linear light source 21, and rough adjustment can be completed by manual adjustment, and then the locking bolt is tightened to perform fine adjustment through the worm gear assembly.

[0036] As a preferred solution, the connecting bracket 33 includes a U-shaped bracket, the worm 41 is arranged inside the U-shaped bracket, and one end of the worm 41 is provided with a driving joint 411 extending to the outside of the U-shaped bracket, and the driving joint 411 is configured as a hexagon socket joint. The worm 41 can be driven in a small space by a hexagon socket wrench. Compared with the driving method through a crank, an external thread, etc., this driving method requires less space and is more suitable for the use of this solution;

[0037] The two side plates of the U-shaped bracket are fixed to the clamping assembly by bolts, and the bolt fixing position is between the first clamping slot 31 and the second clamping slot 32. This can avoid the state of the opening affecting the stability of the U-shaped bracket when the bolts are locked or loosened, thereby reducing disturbance.

[0038] As a preferred solution, the linear light source 21 is a straight laser emitter or a cross laser emitter.

[0039] Both the straight light source transmitter and the cross light source transmitter can meet the use requirements, but it should be noted that the advantages and disadvantages of the two in use, combined with the specific use process of the device, the key lies in the position and angle adjustment of the linear light source 21 to achieve aiming at the edge of the electrode sheet coil and being parallel to the edge of the electrode sheet coil. The most difficult part is the adjustment of the parallel relationship, and the purpose of setting the fine-tuning mechanism 40 is also for this.

[0040] When adjusting the parallel relationship of the straight light source, it only refers to the edge of the electrode sheet coil, which is not conducive to observation and adjustment; we define one light source of the cross light source parallel to the electrode sheet coil as a horizontal light source, and the other as a vertical light source. The cross light source can observe the parallel relationship between the horizontal light source and the edge of the electrode sheet coil, and the vertical relationship between the vertical light source and the electrode sheet coil body. After adjusting the cross light source on one side, the cross light source on the other side can be adjusted by comparing the two vertical light sources, making the installation and adjustment of the auxiliary correction device easier and faster.

[0041] As a preferred solution, a bubble level 13 is provided on the mounting rod 12, and the bubble level 13 is arranged in the middle of the mounting rod 12. The horizontal state of the mounting rod 12 is adjusted by observing the bubble level 13 so that the two linear light sources 21 are at the same horizontal height, which is convenient for the later adjustment of the parallel relationship between the light source and the edge of the electrode sheet coil.

[0042] As a preferred solution, a dial is provided on the edge of the arc-shaped through groove, and a reference point for the initial position of the light source is provided on the linear light source 21. The angle of light emitted by the linear light source 21 when it is initially installed is determined by cooperating with the dial and the reference point, which serves as a reference for the subsequent adjustment between the two linear light sources 21, further reducing the difficulty of adjusting the parallel relationship between the linear light source 21 and the edge of the electrode sheet coil.

[0043] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An auxiliary deviation-correcting device for unwinding an electrode sheet coil, characterized in that: It comprises a mounting rod (12), a mounting bracket (11) and a linear light source (21), wherein two ends of the mounting rod (12) are respectively clamped on the mounting bracket (11), the linear light source (21) can be slidably clamped on the mounting rod (12), and two linear light sources (21) are arranged on the mounting rod (12); The linear light source (21) is connected to the mounting rod (12) via a clamping assembly (30); the clamping assembly (30) comprises a first clamping slot (31) and a second clamping slot (32) which are staggered and arranged perpendicularly to each other; the linear light source (21) is arranged in the first clamping slot (31), and the second clamping slot (32) is clamped on the mounting rod (12); The auxiliary deviation-correcting device further comprises a fine-tuning mechanism (40), wherein the fine-tuning mechanism (40) comprises a sleeve, a connecting plate (43), a worm gear assembly and a locking bolt (44); The sleeve is clamped in the first clamping groove (31), the linear light source (21) is rotatably inserted into the sleeve, the worm gear (42) is rotatably sleeved on the sleeve, the worm (41) is mounted on the clamping assembly (30) through a connecting bracket (33) and meshes with the worm gear (42), the connecting disk (43) is connected to the linear light source (21), and the connecting disk (43) is connected to the worm gear (42) through the locking bolt (44).

2. The electrode sheet coil unwinding auxiliary correction device according to claim 1, characterized in that: The connecting plate (43) is provided with an arc-shaped through groove, the side wall of the worm wheel (42) is provided with a threaded hole (421), the threaded section of the locking bolt (44) passes through the arc-shaped through groove and is screwed into the threaded hole (421), and the end of the locking bolt (44) presses the connecting plate (43).

3. The electrode sheet coil unwinding auxiliary deviation correction device according to claim 1, characterized in that: The connecting bracket (33) comprises a U-shaped bracket, the worm (41) is arranged on the inner side of the U-shaped bracket, and one end of the worm (41) is provided with a driving joint (411) extending to the outer side of the U-shaped bracket; The two side plates of the U-shaped bracket are fixed to the clamping assembly by means of bolts, and the bolt fixing position is between the first clamping groove (31) and the second clamping groove (32).

4. The electrode sheet coil unwinding auxiliary deviation correction device according to claim 1, characterized in that: The linear light source (21) is a straight laser emitter or a cross laser emitter.

5. The electrode sheet coil unwinding auxiliary deviation correction device according to claim 4, characterized in that: A bubble level (13) is provided on the installation rod (12), and the bubble level (13) is arranged in the middle of the installation rod (12).

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