Slip axial end face support structure

Abstract

The utility model discloses a slip shaft end face support structure for solving the problems of insufficient rigidity, easy bending deformation, limiting winding diameter, large tension fluctuation and the like of traditional single-arm support type slip shaft in pole piece winding, the structure is slidably connected with a cantilever support plate on the rack, the end thereof is provided with a support groove, the support groove is matched with the suspended end of the slip shaft by moving the support plate to form stable two-end support, the load capacity and deformation resistance of the slip shaft are greatly improved, the structure cooperatively works through the limiting piece, locking piece, linear guide rail and detection element to realize reliable locking, accurate positioning and smooth movement of the support position, and the stability of tension and the neatness of end face in the winding process are ensured.

Description

Technical Field

[0001] This utility model relates to the field of lithium battery manufacturing technology, and in particular to a slip shaft end face support structure. Background Technology

[0002] In the field of lithium battery manufacturing, the traditional method of winding the positive and negative electrode sheets after slitting them generally adopts a slip shaft single-arm support design, that is, a structure with a fulcrum at one end and the other end suspended. This traditional support structure has exposed many pain points in practical applications, which seriously affect the quality and production efficiency of the electrode sheet winding.

[0003] In other words, the single-arm support structure limits the maximum diameter of the electrode winding, resulting in low production efficiency. Due to the lack of effective support at the suspended end, the risk of bending deformation of the slip shaft increases significantly as the winding diameter increases. When the winding diameter is too large, the slip shaft is overloaded, which can cause the slip shaft to bend or even break, seriously affecting the winding accuracy and product consistency of the electrode. This deformation not only leads to uneven winding but also damages the electrode surface, affecting battery performance. In addition, due to the instability of the single-arm support structure, the tension fluctuates greatly during the winding process, making it impossible to achieve constant tension control. Uneven tension directly leads to uneven winding end faces, affecting the quality and efficiency of subsequent processing steps.

[0004] There is still a lack of better technical solutions to the problem that the single-arm support structure of the slip shaft end face in related technologies affects the electrode collection quality and production efficiency. Utility Model Content

[0005] In view of this, it is necessary to provide a slip shaft end face support structure to at least solve the problem of single-arm support affecting electrode collection quality and production efficiency in related technologies.

[0006] This utility model provides a technical solution as follows: a slip shaft end face support structure, comprising a frame, a slip shaft rotatably connected to the frame, a cantilever support plate slidably connected to the frame, one end of the cantilever support plate being provided with a support groove, the support groove cooperating with the end of the slip shaft to form a movable support.

[0007] In one embodiment, a limiting member is fixedly connected to the frame corresponding to the cantilever support plate. The cantilever support plate is provided with a limiting groove to cooperate with the limiting member. When the limiting member cooperates with the end of the cantilever support plate, the supporting groove supports the slip shaft. When the limiting member cooperates with the limiting groove, the supporting groove is away from the slip shaft.

[0008] In one embodiment, the limiting member includes a mounting plate and a first telescopic moving member fixedly connected to the mounting plate. A limiting block is fixedly connected to the moving end of the first telescopic moving member, and the limiting block cooperates with the limiting groove and the end of the cantilever support plate.

[0009] In one embodiment, a linear guide rail is fixedly connected to the frame, and the cantilever support plate is slidably connected to the linear guide rail.

[0010] In one embodiment, a collision protection block is fixedly connected to the frame between the two sets of linear guides, and the collision protection block engages with the end of the cantilever support plate.

[0011] In one embodiment, two sets of detection elements are fixedly connected to the frame. The detection elements cooperate with the cantilever support plate to detect the position of the cantilever support plate.

[0012] In one embodiment, the detection element is a proximity sensor, and a detection plate is fixedly connected to the cantilever support plate in conjunction with the proximity sensor.

[0013] In one embodiment, a locking member is fixedly connected to the cantilever support plate corresponding to the support groove, and the locking member is used to lock the end of the slip shaft into the support groove.

[0014] In one embodiment, the locking member includes a second telescopic moving member and a locking block fixedly connected to the moving end of the second telescopic moving member, wherein the top surface of the locking block is configured as an arc surface that mates with the slip shaft.

[0015] In one embodiment, a cable chain bracket is fixedly connected to the frame, a cable chain is fixedly connected to the cable chain bracket, and the cable chain is fixedly connected to the cantilever support plate; a handle is fixedly connected to the cantilever support plate.

[0016] Compared with related technologies, the slip shaft end face support structure provided in this application addresses many pain points of traditional single-arm support slip shafts. The slip shaft end face support structure replaces the suspended end with a movable connection support structure to achieve a two-end support effect. This design greatly improves the stability and load capacity of the slip shaft. Driven by a motor, the slip shaft rotates clockwise, winding the electrode sheet into a disc. At this time, the support device is in a closed state. One end of the slip shaft is rotatably connected to the wall panel, while the other end is supported by a cantilever support plate, ensuring the maximum winding diameter of the electrode sheet. When the electrode sheet reaches the maximum winding diameter, the cantilever support plate is manually pulled into position along the guide rail direction using a push-pull handle. The wound electrode sheet is then pulled out from the other end of the slip shaft. After the electrode sheet is pulled out of the slip shaft, the support device is closed, the motor is started, and the cycle repeats. This significantly improves equipment performance and winding quality, production efficiency and operational convenience, as well as cost savings and economic benefits. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the structure of the present invention in its working state; Figure 3 This is a schematic diagram of the structure of the present invention in its non-working state; Figure 4 for Figure 2 Detailed structural diagram of part a.

[0018] Figure label: 100. Rack; 200. Slip shaft; 300. Cantilever support plate; 301. Support groove; 302. Limiting groove; 303. Handle; 400. Limiting component; 401. First telescopic moving component; 402. Limiting block; 500. Linear guide rail; 600, anti-collision blocks; 701. Proximity sensor; 702. Detection element; 800. Locking component; 801. Second telescopic movement component; 802. Locking block; 901. Cable carrier bracket; 902. Cable carrier. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] It should be noted that when a component is said to be "mounted on" another component, it can be directly mounted on the other component or may be interspersed with a component. When a component is said to be "set on" another component, it can be directly set on the other component or may be interspersed with a component. When a component is said to be "fixed to" another component, it can be directly fixed to the other component or may be interspersed with a component.

[0021] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "or / and" as used herein includes any and all combinations of one or more of the associated listed items.

[0022] Please see Figures 1 to 4 The slip shaft 200 end face support structure of this application aims to overcome a series of problems existing in the traditional single-arm support method during the winding of lithium battery electrode sheets, such as insufficient rigidity, easy deformation, large tension fluctuation, and limitation of winding diameter. This slip shaft 200 end face support structure includes a frame 100, a slip shaft 200, and a cantilever support plate 300. The frame 100 serves as the mounting base for the entire structure. The slip shaft 200 is mounted on the frame 100 through conventional rotating connection components such as bearing seats and is driven by a drive motor (not shown) to rotate for winding the positive and negative electrode sheets of the lithium battery. A sliding connection is provided on the frame 100 corresponding to the originally suspended end of the slip shaft 200. A cantilever support plate 300 is provided, which can slide relative to the frame 100, allowing it to approach or move away from the end of the differential shaft 200. A support groove 301 is provided at the end of the cantilever support plate 300 near the differential shaft 200. When the cantilever support plate 300 slides to the working position, the support groove 301 on it just matches the end of the differential shaft 200, forming a rotational support for that end of the differential shaft 200. Thus, the differential shaft 200 is transformed from a traditional single-point support to a stable two-point support, which greatly enhances its rigidity and effectively prevents the risk of bending or even breaking of the differential shaft 200 due to the increase in winding diameter and load.

[0023] To precisely control the position of the cantilever support plate 300 and ensure its stability in both working and non-working states, in one embodiment, a limiting member 400 is fixedly installed on the frame 100. Correspondingly, a limiting groove 302 is formed on the cantilever support plate 300. When the cantilever support plate 300 needs to support the differential shaft 200, the cantilever support plate 300 is slid so that the limiting member 400 engages with the end of the cantilever support plate 300 (i.e., the end away from the support groove 301). At this time, the support groove 301 just supports the end of the differential shaft 200, forming effective support. When it is necessary to unwind the wound electrode roll, the cantilever support plate 300 is slid so that the limiting member 400 engages with the limiting groove 302 on the cantilever support plate 300. At this time, the support groove 301 is away from the end of the differential shaft 200, leaving sufficient operating space for the end of the differential shaft 200 so that the electrode roll can be removed from the differential shaft 200.

[0024] In one embodiment, the limiting member 400 includes a mounting plate fixedly mounted on the frame 100 and a first telescopic moving member 401 (such as a cylinder, hydraulic cylinder, or electric push rod) fixedly mounted on the mounting plate. A limiting block 402 is fixedly connected to the moving end of the first telescopic moving member 401. By controlling the extension and retraction of the first telescopic moving member 401, the limiting block 402 can be driven to rise or fall. When it is necessary to lock the cantilever support plate 300, the first telescopic moving member 401 drives the limiting block 402 to fall, so that it abuts against the end of the cantilever support plate 300 or the limiting groove 302. When it is necessary to move the cantilever support plate 300, the first telescopic moving member 401 drives the limiting block 402 to rise, thereby allowing the cantilever support plate 300 to slide.

[0025] In one embodiment, in order to ensure the smoothness and straightness of the sliding of the cantilever support plate 300, a linear guide rail 500 is fixedly installed on the frame 100. The cantilever support plate 300 is slidably connected to the linear guide rail 500 by components such as sliders. Usually, two sets of linear guide rails 500 can be set to provide better stability.

[0026] In one embodiment, as a safety protection measure, a collision protection block 600 is fixedly installed on the frame 100 between two sets of linear guide rails 500. The position of the collision protection block 600 corresponds to the end of the cantilever support plate 300 when it slides to the limit position. It is used to absorb impact energy and prevent the cantilever support plate 300 from rigidly colliding with the frame 100, thereby playing a buffering and protective role.

[0027] In one embodiment, in order to achieve automatic detection of the position of the cantilever support plate 300, a detection element, such as a proximity sensor 701, is fixedly installed on the frame 100. Correspondingly, a detection piece 702 that cooperates with the proximity sensor 701 is fixedly installed on the cantilever support plate 300. When the cantilever support plate 300 slides to a specific position (such as the working position or the avoidance position), the detection piece 702 will enter or leave the sensing area of ​​the proximity sensor 701, thereby triggering a signal. This allows the control system to determine the real-time status of the cantilever support plate 300 and can be linked with other actions (such as the rotation and locking of the differential shaft 200).

[0028] In one embodiment, in order to prevent the slip shaft 200 from accidentally coming out of the support groove 301 when rotating at high speed and to improve operational safety, a locking member 800 is also provided on the cantilever support plate 300. The locking member 800 is used to lock the end of the slip shaft 200 in the support groove 301 after the support groove 301 provides support to the end of the slip shaft 200.

[0029] In one embodiment, the locking member 800 includes a second telescopic moving member 801 (such as a small cylinder or electric push rod) fixedly mounted on the cantilever support plate 300, and a locking block 802 fixedly connected to the moving end of the second telescopic moving member 801. The top surface of the locking block 802 is designed as an arc surface that matches the outer circumferential surface of the differential shaft 200. When the end of the differential shaft 200 enters the support groove 301, the second telescopic moving member 801 drives the locking block 802 to move upward, using its arc surface to press against the outer circle of the differential shaft 200, thereby achieving axial limiting and preventing it from jumping or coming out.

[0030] In one embodiment, air pipes or cables may be connected to the cantilever support plate 300. In order to manage and protect these pipes in an orderly manner, a drag chain bracket 901 is fixedly connected to the frame 100. A drag chain 902 is installed on the drag chain bracket 901. The other end of the drag chain 902 is fixedly connected to the cantilever support plate 300. When the cantilever support plate 300 slides, the pipes can move with it in the drag chain 902 to avoid tangling and wear.

[0031] Furthermore, in order to facilitate the manual operation of the cantilever support plate 300, a handle 303 is fixedly installed on the cantilever support plate 300.

[0032] The working principle of this utility model is as follows: when the electrode winding operation begins, the cantilever support plate 300 is in the closed (working) state, its support groove 301 supports the suspended end of the differential shaft 200, and the locking member 800 presses the end of the differential shaft 200. The differential shaft 200 rotates under the drive of the motor to wind the electrode. Since both ends are stably supported, the differential shaft 200 can withstand a larger winding load, allowing the electrode to be wound to a larger design diameter, and the tension is stable and the end face is neat during the winding process.

[0033] Once the electrode sheet reaches the predetermined diameter, winding stops. First, the locking component 800 releases its clamping force on the end of the differential shaft 200. Then, the operator uses the handle 303 to pull the cantilever support plate 300 along the linear guide rail 500 to the limit position (avoidance position). At this time, the limiting component 400 (limiting block 402 falls into the limiting groove 302) positions it, and the suspended end of the differential shaft 200 is fully exposed, making it easy to remove the wound electrode sheet roll smoothly from this end.

[0034] After the electrode roll is unloaded, the operator pushes the cantilever support plate 300 back to the working position, and the limiting part 400 (the limiting block 402 abuts against the end of the cantilever support plate 300) locks it. The locking part 800 then presses the end of the slip shaft 200, and then the next round of electrode winding operation can begin, and the cycle continues.

[0035] In summary, by introducing a sliding cantilever support plate 300 and its matching structure, this utility model transforms the suspended end of the slip shaft 200 into a movable support end, effectively solving the inherent problems of poor rigidity, easy deformation, limited roll diameter, and large tension fluctuation of single-arm support, and significantly improving the quality of electrode winding, production efficiency, and equipment operation reliability.

[0036] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0037] Those skilled in the art should recognize that the above embodiments are only used to illustrate the present utility model and are not intended to limit the present utility model. Any appropriate changes and variations made to the above embodiments within the scope of the essential spirit of the present utility model shall fall within the scope of protection claimed by the present utility model.

Claims

1. A slip shaft end face support structure, comprising a frame (100), wherein a slip shaft (200) is rotatably connected to the frame (100), characterized in that, A cantilever support plate (300) is slidably connected to the frame (100). One end of the cantilever support plate (300) is provided with a support groove (301). The support groove (301) cooperates with the end of the slip shaft (200) to form a movable support.

2. The slip shaft end face support structure according to claim 1, characterized in that, A limiting member (400) is fixedly connected to the frame (100) corresponding to the cantilever support plate (300). A limiting groove (302) is provided on the cantilever support plate (300) to cooperate with the limiting member (400). When the limiting member (400) cooperates with the end of the cantilever support plate (300), the supporting groove (301) supports the slip shaft (200). When the limiting member (400) cooperates with the limiting groove (302), the supporting groove (301) is away from the slip shaft (200).

3. The slip shaft end face support structure according to claim 2, characterized in that, The limiting member (400) includes a mounting plate and a first telescopic moving member (401) fixedly connected to the mounting plate. A limiting block (402) is fixedly connected to the moving end of the first telescopic moving member (401). The limiting block (402) cooperates with the limiting groove (302) and the end of the cantilever support plate (300).

4. The slip shaft end face support structure according to claim 1, characterized in that, A linear guide rail (500) is fixedly connected to the frame (100), and the cantilever support plate (300) is slidably connected to the linear guide rail (500).

5. The slip shaft end face support structure according to claim 4, characterized in that, A collision protection block (600) is fixedly connected on the frame (100) between the two sets of linear guide rails (500), and the collision protection block (600) engages with the end of the cantilever support plate (300).

6. The slip shaft end face support structure according to claim 1, characterized in that, Two sets of detection elements are fixedly connected to the frame (100). The detection elements cooperate with the cantilever support plate (300) to detect the position of the cantilever support plate (300).

7. The slip shaft end face support structure according to claim 6, characterized in that, The detection element is a proximity sensor (701), and a detection piece (702) is fixedly connected to the cantilever support plate (300) in conjunction with the proximity sensor (701).

8. The slip shaft end face support structure according to claim 1, characterized in that, A locking member (800) is fixedly connected to the cantilever support plate (300) corresponding to the support groove (301). The locking member (800) is used to lock the end of the slip shaft (200) into the support groove (301).

9. The slip shaft end face support structure according to claim 8, characterized in that, The locking member (800) includes a second telescopic moving member (801) and a locking block (802) fixedly connected to the moving end of the second telescopic moving member (801). The top surface of the locking block (802) is set as an arc surface that cooperates with the slip shaft (200).

10. The slip shaft end face support structure according to claim 1, characterized in that, A drag chain bracket (901) is fixedly connected to the frame (100), a drag chain (902) is fixedly connected to the drag chain bracket (901), and the drag chain (902) is fixedly connected to the cantilever support plate (300); a handle (303) is fixedly connected to the cantilever support plate (300).

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