Auxiliary disassembling device for cylindrical battery

Abstract

The utility model provides an auxiliary disassembling device for a cylindrical battery, and belongs to the field of new energy batteries. The device comprises a roll core, a support, a central rotating shaft, a positive pole rolling shaft, a negative pole rolling shaft and a separating plate, the support comprises a bottom plate and a back plate, the back plate is vertically arranged on the bottom plate, the central rotating shaft, the positive pole rolling shaft and the negative pole rolling shaft are vertically arranged on the back plate, and the positive pole rolling shaft and the negative pole rolling shaft are arranged on the two sides of the central rotating shaft respectively. The center of the roll core is sleeved on the central rotating shaft, and the separating plate faces the roll core and is tangent to the circumferential surface of the roll core. By adopting the auxiliary disassembling device for the cylindrical battery provided by the embodiment of the utility model, the problems of lower safety and lower disassembling efficiency in the prior art can be solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to new energy battery field especially relates to a cylindrical battery auxiliary disassembling device. BACKGROUND

[0002] At present, cylindrical batteries mostly adopt full tab winding process, then the tabs are rubbed flat, and then the current collecting disc and shell are welded. In order to improve the current collecting disc welding yield and ensure the performance of the battery cell, the tabs need to be rubbed flat with high density and high flatness. However, in the development process of the battery cell, the interface condition of the pole piece and the diaphragm needs to be observed and sampled and tested and analyzed, and in the recycling process of the waste lithium battery, the positive and negative pole pieces also need to be separated for treatment.

[0003] In the prior art, when the cylindrical battery is disassembled, manual disassembly is usually adopted. When the pole piece is sampled and analyzed, the disassembled battery cell is mostly in a full or half charged state. After the shell is opened and the winding core is taken out, the winding core needs to be slowly opened from the beginning to separate the positive pole piece and the negative pole piece. Special attention needs to be paid to the contact short circuit between the residual positive tab and the negative pole piece or the residual negative tab and the positive pole piece. Therefore, more practice is needed in the manual disassembly process to prevent short circuit from causing disassembly failure and personnel burns. Moreover, if the disassembly is too slow, the charged negative pole piece exposed to the air is easy to oxidize, which is not conducive to observation and sampling.

[0004] The disassembly method for the cylindrical battery in the prior art usually adopts manual disassembly, which results in low safety and low disassembly efficiency. INVENTION CONTENTS

[0005] The utility model embodiment provides a cylindrical battery auxiliary disassembly device, can solve the problem of low safety and low disassembly efficiency in the prior art. The technical scheme is as follows:

[0006] A cylindrical battery auxiliary disassembly device, comprising a winding core, a support, a center rotating shaft, a positive electrode winding shaft, a negative electrode winding shaft and a separation plate,

[0007] The support comprises a bottom plate and a back plate, the back plate is vertically arranged on the bottom plate, the center rotating shaft, the positive electrode winding shaft and the negative electrode winding shaft are vertically arranged on the back plate, the positive electrode winding shaft and the negative electrode winding shaft are arranged on the two sides of the center rotating shaft respectively, the center of the winding core is sleeved on the center rotating shaft, and the separation plate is arranged towards the winding core and is tangent to the circumferential surface of the winding core.

[0008] Optionally, the separation plate is provided with two, and the two separation plates are arranged in the axial direction of the center rotating shaft.

[0009] Optionally, a limiting plate is arranged on the side of the separation plate away from the winding core, and the limiting plate is perpendicular to the separation plate.

[0010] Optionally, a first supporting shaft is arranged between the central rotating shaft and the positive electrode winding shaft, the first supporting shaft is vertically arranged on the back plate, a connecting rod is arranged on the first supporting shaft and faces the winding core, and the end of the connecting rod is connected with the separating plate.

[0011] Optionally, a second supporting shaft is arranged below the first supporting shaft, the second supporting shaft is vertically arranged on the back plate, and a telescopic pipe is arranged between the first supporting shaft and the second supporting shaft.

[0012] Optionally, a separating air pipe and a separating air nozzle are further included, the separating air nozzle is arranged on the separating plate and faces the winding core, the tail of the separating air nozzle is connected with the separating air pipe, and the separating air pipe is connected with an external air source.

[0013] Optionally, a fixing rod is arranged outside the separating air pipe, one end of the fixing rod is connected with the separating air nozzle, and the other end of the fixing rod is provided with a supporting piece.

[0014] Optionally, a separating plate is arranged between the central rotating shaft and the positive electrode winding shaft and the negative electrode winding shaft, the separating plate is perpendicular to the bottom plate and the back plate, a passing groove is arranged on the separating plate, and the separated electrode sheet of the winding core passes through the passing groove.

[0015] Optionally, a third supporting shaft is arranged between the central rotating shaft and the negative electrode winding shaft, and the third supporting shaft is vertically arranged on the back plate.

[0016] Optionally, the third supporting shaft is rotatably arranged on the back plate around the axis of the third supporting shaft.

[0017] The technical scheme provided by the embodiment of the utility model has at least the following beneficial effects:

[0018] The cylindrical battery auxiliary disassembling device provided by the embodiment of the utility model sets the winding core on the central rotating shaft, first separates a part of the positive electrode sheet and the negative electrode sheet of the winding core respectively, winds the separated positive electrode sheet on the positive electrode winding shaft, winds the negative electrode sheet on the negative electrode winding shaft, aligns the separating plate with the separation position of the positive electrode sheet and the negative electrode sheet of the winding core, and makes the separating plate tangent to the circumferential surface of the winding core, when the central rotating shaft continues to rotate, the positive electrode sheet and the negative electrode sheet are separated and wound on the positive electrode winding shaft and the negative electrode winding shaft respectively under the action of the positive electrode winding shaft, the negative electrode winding shaft and the separating plate, so that the automatic collection of the positive electrode sheet and the negative electrode sheet is realized, and the safety accidents occurring in the manual collection are reduced. On the other hand, compared with the manual separation of the positive electrode sheet and the negative electrode sheet, the separating plate is used to mechanically separate the winding core, which is more efficient, and can effectively solve the problems of low safety and low disassembling efficiency in the prior art. BRIEF DESCRIPTION OF DRAWINGS

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the overall structure of the device provided in this embodiment of the utility model.

[0021] In the diagram: 1-Core; 2-Support; 21-Base plate; 22-Back plate; 23-Separator plate; 231-Passing groove; 3-Central rotating shaft; 4-Positive winding shaft; 5-Negative winding shaft; 6-Separation plate; 61-Limiting plate; 71-First support shaft; 72-Second support shaft; 721-Telescopic tube; 73-Third support shaft; 8-Connecting rod; 91-Separation air pipe; 92-Separation air nozzle; 93-Fixing rod; 94-Support component; 941-Support frame; 942-Fixing shaft. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.

[0023] Figure 1 This is a schematic diagram of the overall structure of the device provided in this embodiment of the utility model. Figure 1 The cylindrical battery auxiliary disassembly device shown includes a core 1, a support 2, a central rotating shaft 3, a positive electrode winding shaft 4, a negative electrode winding shaft 5, and a separating plate 6. The support 2 includes a base plate 21 and a back plate 22. The back plate 22 is vertically mounted on the base plate 21. The central rotating shaft 3, the positive electrode winding shaft 4, and the negative electrode winding shaft 5 are vertically mounted on the back plate 22. The positive electrode winding shaft 4 and the negative electrode winding shaft 5 are respectively mounted on both sides of the central rotating shaft 3. The center of the core 1 is fitted onto the central rotating shaft 3. The separating plate 6 is positioned facing the core 1 and is tangent to the circumferential surface of the core 1.

[0024] Exemplary, in embodiments of this utility model, such as Figure 1As shown, the winding core 1 is arranged on the central rotating shaft 3, the positive electrode winding shaft 4 is arranged on the right side of the central rotating shaft 3, and the vertical height of the positive electrode winding shaft 4 is higher than that of the central rotating shaft 3, and the negative electrode winding shaft 5 is arranged on the left side of the central rotating shaft 3, and the height of the negative electrode winding shaft 5 is lower than that of the central rotating shaft 3. First, separate a part of the positive electrode sheet and the negative electrode sheet from the winding core 1, and wind the separated positive electrode sheet on the positive electrode winding shaft 4, and wind the negative electrode sheet on the negative electrode winding shaft 5. At this time, the separation plate 6 is located below the positive electrode sheet pulled out from the winding core 1, and is aligned with the separation position of the positive electrode sheet and the negative electrode sheet. When the central rotating shaft 3 continues to rotate clockwise, the separation plate 6 continues to separate the positive electrode sheet and the negative electrode sheet on the winding core 1, and the positive electrode winding shaft 4 rotates counterclockwise to wind and collect the positive electrode sheet, and the negative electrode winding shaft 5 rotates clockwise to wind and collect the negative electrode sheet. In this way, the positive electrode sheet and the negative electrode sheet are quickly separated and collected. Compared with the traditional technology, manual separation is used, the efficiency of separation and collection by using the device is very high, and the danger of burning the operator during manual operation can be avoided, thereby improving the safety and efficiency of disassembly.

[0025] The cylindrical battery auxiliary disassembly device provided by the embodiment of the utility model, the winding core 1 is arranged on the central rotating shaft 3, first, the positive electrode sheet and the negative electrode sheet of the winding core 1 are separated respectively, and the separated positive electrode sheet is wound on the positive electrode winding shaft 4, and the negative electrode sheet is wound on the negative electrode winding shaft 5, the separation plate 6 is aligned with the separation position of the positive electrode sheet and the negative electrode sheet of the winding core 1, and is tangent to the circumferential surface of the winding core 1, when the central rotating shaft 3 continues to rotate, under the action of the positive electrode winding shaft 4, the negative electrode winding shaft 5 and the separation plate 6, the positive electrode sheet and the negative electrode sheet are separated and wound on the positive electrode winding shaft 4 and the negative electrode winding shaft 5 respectively, so that the positive electrode sheet and the negative electrode sheet are automatically collected, thereby reducing the safety accidents occurring in manual collection. On the other hand, compared with manual separation of the positive electrode sheet and the negative electrode sheet, the separation plate 6 is used for mechanical separation of the winding core 1, which is more efficient and can effectively solve the problems of low safety and low disassembly efficiency in the prior art.

[0026] Optionally, the separation plate 6 is provided with a plurality of separation plates 6, and the plurality of separation plates 6 are arranged in the axial direction of the central rotating shaft 3.

[0027] Exemplarily, in the embodiment of the utility model, two separation plates 6 are arranged, and the two separation plates 6 are located at two ends of the winding core 1 in the length direction. Since the winding core 1 has a certain length, by arranging a plurality of separation plates 6, the contact area of the separation plate 6 and the winding core 1 in the length direction of the winding core 1 can be increased, so that the separation plate 6 can more stably separate the positive electrode sheet and the negative electrode sheet, thereby improving the stability of the device.

[0028] Optionally, a limiting plate 61 is arranged on the side of the separation plate 6 away from the winding core 1, and the limiting plate 61 is perpendicular to the separation plate 6.

[0029] Exemplarily, in the embodiment of the utility model, through setting the limiting plate 61, when the separating plate 6 is separating the roll core, the limiting plate 61 can limit the position of the separating plate 6 cutting into the roll core 1, prevent the separating plate 6 from cutting too deep into the roll core 1 and damaging the roll core 1, through setting the limiting plate 61, the integrity of the pole piece collected after disassembling can be improved, so as to further improve the stability of the device.

[0030] Optionally, the first support shaft 71 is vertically arranged on the back plate 22, the connecting rod 8 is arranged on the first support shaft 71 and faces the roll core 1, and the end of the connecting rod 8 is connected with the separating plate 6.

[0031] Exemplarily, in the embodiment of the utility model, the first support shaft 71 and the connecting rod 8 are located below the separated positive pole piece, through setting the first support shaft 71 and the connecting rod 8, the separating plate 6 can be supported, at the same time, the first support shaft 71 can provide support force for the collection of the positive pole piece, appropriately increase the tension in the process of collecting the pole piece, so as to further improve the stability of the device.

[0032] Optionally, the second support shaft 72 is arranged below the first support shaft 71, the second support shaft 72 is vertically arranged on the back plate 22, and the telescopic pipe 721 is arranged between the first support shaft 71 and the second support shaft 72.

[0033] Exemplarily, in the embodiment of the utility model, through setting this structure, the first support shaft 71 can move close to or away from the second support shaft 72 along the telescopic pipe direction, since the roll core 1 has a certain diameter, in the disassembling process, the diameter of the roll core 1 becomes smaller and smaller, the positive pole piece angle between the first support shaft 71 and the roll core becomes larger and larger, in order to make the separating plate 6 still be tangent to the circumferential surface of the roll core 1 with a reduced diameter, the height of the first support shaft 71 is adaptively reduced through the telescopic pipe 721, so that the height of the separating plate 6 is also reduced, so that the separating plate 6 is attached to the roll core 1 with a reduced diameter, so that the separating plate 6 can smoothly separate the positive pole piece and the negative pole piece, so as to further improve the stability of the device.

[0034] Optionally, the separating air pipe 91 and the separating air nozzle 92 are further included, the separating air nozzle 92 is arranged on the separating plate 6 and faces the roll core 1, the tail of the separating air nozzle 92 is connected with the separating air pipe 91, and the separating air pipe 91 is connected with an external air source.

[0035] Exemplarily, in the embodiment of the utility model, the separation air nozzle 92 is obliquely arranged on the separation plate 6, the separation air pipe 91 can be connected with an external high-pressure gas tank, such as nitrogen, helium or dry air. When the separation plate 6 separates the positive and negative plates, some metal scraps are usually generated, by arranging the separation air nozzle 92, the remaining metal scraps can be blown outwards when the separation plate 6 works, further clearing the remaining tabs, so as to ensure the neatness of the wound and collected plate, so as to facilitate the subsequent measurement experiment of the plate, by arranging the separation air pipe 91 and the separation air nozzle 92, the practicability of the device is improved.

[0036] Optionally, the separation air pipe 91 is externally provided with a fixing rod 93, one end of the fixing rod 93 is connected with the separation air nozzle 92, and the other end of the fixing rod 93 is provided with a supporting piece 94.

[0037] Exemplarily, in the embodiment of the utility model, by arranging the fixing rod 93, the separation air pipe 91 can be protected, so that the separation air pipe 91 cannot be normally worked due to bending. When the diameter of the winding core 1 is reduced, the first supporting shaft 71 drives the separation plate 6 to descend, because the fixing rod 93 is arranged, the fixing rod 93 has a certain length, in order to improve the stability of the fixing rod 93 in the descending movement process, the supporting piece 94 is arranged at the tail of the fixing rod 93. In the embodiment, the supporting piece 94 comprises a supporting frame 941 and a fixing shaft 942, the fixing shaft 942 is vertically arranged on the back plate 22, the supporting frame 941 is fixedly connected with the fixing shaft 942, the supporting frame 941 is parallel to the telescopic pipe 721, and the included angle with the vertical direction is consistent and ranges from 30° to 60°. The tail end of the fixing rod 93 is slidably arranged in the supporting frame 941, the tail end of the fixing rod 93 can slide along the arrangement direction of the supporting frame 941, by arranging the structure, the fixing rod 93 can be provided with a certain supporting force, so that the fixing rod 93 cannot collapse due to self-weight in the movement process of reducing the diameter of the winding core 1, and the stability of the device is further improved.

[0038] Optionally, the center rotating shaft 3 is provided with a partition plate 23 between the positive winding shaft 4 and the negative winding shaft 5, the partition plate 23 is perpendicular to the bottom plate 21 and the back plate 22, the partition plate 23 is provided with a passing groove 231, and the plate separated from the winding core 1 passes through the passing groove 231.

[0039] Exemplarily, in the embodiment of the utility model, by arranging the partition plate 23, the device can be divided into three separate parts, the collected positive and negative plates can be wound on the positive winding shaft 4 and the negative winding shaft 5 through the passing groove 231. The bottom plate 21, the back plate 22 and the partition plate 23 are all made of fireproof materials, when a fire occurs in the disassembling process of the winding core 1, the fire can be limited in the three separate parts as much as possible, so that the fire does not spread, the loss caused by the fire is minimized, and the safety of the device is improved.

[0040] Optionally, a third supporting shaft 73 is arranged between the central rotating shaft 3 and the negative electrode winding shaft 5, and the third supporting shaft 73 is arranged vertically on the back plate 22.

[0041] Illustratively, in the embodiment of the utility model, the third supporting shaft 73 is arranged to provide a supporting force during the negative electrode sheet collecting process, so as to appropriately increase the internal tension of the negative electrode sheet and prevent the negative electrode sheet from sagging during the collecting process, thereby further improving the stability of the device.

[0042] Optionally, the third supporting shaft 73 is rotatably arranged on the back plate 22.

[0043] Illustratively, in the embodiment of the utility model, the third supporting shaft 73 is arranged to be rotatable, which can assist the negative electrode winding shaft 5 in collecting the negative electrode sheet, thereby further improving the efficiency of the device in collecting the electrode sheet.

[0044] Unless otherwise defined, technical terms or scientific terms used herein should be understood as having the common meaning as understood by one of ordinary skill in the art to which the utility model belongs. The "first", "second" and similar words used in the utility model patent application specification and claims do not represent any order, quantity or importance, but are only used to distinguish different components. Similarly, "one" or "a" and similar words do not represent a quantity limit, but represent the existence of at least one. "Include" or "contain" and similar words mean that the elements or objects appearing before "include" or "contain" cover the elements or objects listed after "include" or "contain" and their equivalents, and do not exclude other elements or objects. "Connect" or "connected" and similar words are not limited to physical or mechanical connection, but can include electrical connection, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to represent relative positional relationship, and when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0045] The above is only the optional embodiment of the utility model, and does not limit the utility model, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A cylindrical battery auxiliary disassembly device, comprising a winding core (1), characterized in that, include: The structure consists of a support (2), a central rotating shaft (3), a positive winding shaft (4), a negative winding shaft (5), and a separating plate (6). The bracket (2) includes a base plate (21) and a back plate (22). The back plate (22) is vertically mounted on the base plate (21). The central rotating shaft (3), the positive winding shaft (4), and the negative winding shaft (5) are vertically mounted on the back plate (22). The positive winding shaft (4) and the negative winding shaft (5) are respectively mounted on both sides of the central rotating shaft (3). The center of the core (1) is fitted on the central rotating shaft (3). The separating plate (6) is positioned facing the core (1) and is tangent to the circumferential surface of the core (1).

2. The cylindrical battery auxiliary disassembly device according to claim 1, characterized in that, Multiple separation plates (6) are provided, and the multiple separation plates (6) are arranged at axial intervals along the central rotation axis (3).

3. The cylindrical battery auxiliary disassembly device according to claim 1, characterized in that, A limiting plate (61) is provided on the side of the separating plate (6) away from the core (1), and the limiting plate (61) is perpendicular to the separating plate (6).

4. The cylindrical battery auxiliary disassembly device according to claim 1, characterized in that, A first support shaft (71) is provided between the central rotating shaft (3) and the positive winding shaft (4). The first support shaft (71) is vertically arranged on the back plate (22). A connecting rod (8) is provided on the first support shaft (71) facing the winding core (1). The end of the connecting rod (8) is connected to the separating plate (6).

5. The cylindrical battery auxiliary disassembly device according to claim 4, characterized in that, A second support shaft (72) is provided below the first support shaft (71), and the second support shaft (72) is vertically arranged on the back plate (22). A telescopic tube (721) is provided between the first support shaft (71) and the second support shaft (72).

6. The cylindrical battery auxiliary disassembly device according to claim 1, characterized in that, It also includes a separation air pipe (91) and a separation air nozzle (92), the separation air nozzle (92) is disposed on the separation plate (6) facing the core (1), the tail of the separation air nozzle (92) is connected to the separation air pipe (91), and the separation air pipe (91) is connected to an external air source.

7. The cylindrical battery auxiliary disassembly device according to claim 6, characterized in that, A fixing rod (93) is provided on the outside of the separating air pipe (91). One end of the fixing rod (93) is connected to the separating air nozzle (92), and the other end of the fixing rod (93) is provided with a support member (94).

8. The cylindrical battery auxiliary disassembly device according to claim 1, characterized in that, A partition plate (23) is provided between the central rotating shaft (3) and the positive electrode winding shaft (4) and the negative electrode winding shaft (5). The partition plate (23) is perpendicular to the bottom plate (21) and the back plate (22). A through groove (231) is provided on the partition plate (23), and the electrode sheet after the core (1) is separated passes through the through groove (231).

9. The cylindrical battery auxiliary disassembly device according to claim 1, characterized in that, A third support shaft (73) is provided between the central rotating shaft (3) and the negative electrode winding shaft (5), and the third support shaft (73) is vertically arranged on the back plate (22).

10. The cylindrical battery auxiliary disassembly device according to claim 9, characterized in that, The third support shaft (73) is rotatably mounted on the back plate (22) about its axis.

Images