Square single lithium battery cell fine disassembly device and process thereof

Abstract

The invention relates to the field of lithium battery disassembly, in particular to a fine disassembly device and process for a square single lithium battery cell. A fine disassembling device for square single lithium battery cells comprises a workbench, a vertical cutting mechanism, a transverse cutting mechanism, an end cover falling mechanism, a pushing mechanism and a side cutting mechanism, and the workbench is composed of supporting legs and a table top; the vertical cutting mechanism is arranged on the left side of the top of the workbench and provided with two conveying structures which are vertically and symmetrically installed in the downward conveying process of the square single lithium batteries. A square single lithium battery is driven by the vertical cutting mechanism to be conveyed downwards, in the conveying process, a shell of an end cover is vertically cut, the square single lithium battery subjected to vertical cutting enters the transverse cutting mechanism, the transverse cutting mechanism conveys the square single lithium battery to the right side, and in the conveying process, the transverse cutting mechanism conveys the square single lithium battery to the right side. And the shell of the end cover is transversely cut, and after the end cover is cut, the end cover is continuously conveyed to the right side.

Description

Technical Field

[0001] The present invention relates to the field of lithium battery disassembly, and in particular to a device and process for fine disassembly of square single lithium battery cells. Background Art

[0002] Numerous technologies and devices have been developed and applied in the current field of disassembly of prismatic single-cell lithium batteries. For example, Chinese patent publication number CN218224855U discloses a prismatic battery disassembly device comprising a bracket, cutting mechanism, lifting platform, and lifting drive assembly. While this device enables the disassembly of prismatic batteries to a certain extent, in actual use, this traditional disassembly method presents numerous problems.

[0003] The current conventional disassembly method usually uses a clamp to stabilize the battery first, and then uses saw cutting, laser cutting or water jet cutting to perform circular cutting along the preset cutting line on the square aluminum shell, thereby separating the aluminum shell from the cover assembly, and then performing vertical side cutting, and then using a shell expander to separate the side of the aluminum shell and the battery cell, and finally taking out the battery cell through the clamp. The lithium battery disassembly and separation device involved in the patent with publication number CN207834457U adopts a similar operating process. However, this method has obvious defects. Its operating steps are relatively complicated, and there is a lack of close continuity between the various links. After each operation step is completed, the battery position needs to be readjusted or the tool needs to be replaced, which makes it difficult to improve the overall work efficiency and cannot meet the needs of large-scale production or efficient research.

[0004] Furthermore, the cutting process can easily cause varying degrees of damage to the battery cells due to the precision limitations of the cutting equipment and the inherent complexity of the battery structure. For example, improperly set laser cutting parameters can cause localized overheating of the cell, impacting performance; while water jet cutting can leave residual water stains, adversely affecting the cell's electrical properties. This damage not only hinders subsequent accurate analysis of the cell's internal structure and performance but also reduces the quality and reuse value of the cell materials in the battery recycling industry.

[0005] Therefore, there is an urgent need to develop a device and process for the fine disassembly of square single-cell lithium battery cells with strong working continuity and improved disassembly efficiency. Summary of the Invention

[0006] In order to overcome the above-mentioned shortcomings of the prior art, the present invention provides a device and process for fine disassembly of square single lithium battery cells with strong working continuity and improved disassembly efficiency.

[0007] To achieve the above-mentioned purpose, the technical solution adopted by the present invention is: to provide a device for fine disassembly of square single-cell lithium battery cells, including a workbench, a vertical cutting mechanism, a horizontal cutting mechanism, an end cover falling off mechanism, a pushing mechanism and a side cutting mechanism, wherein the workbench is composed of a support leg and a table top; the vertical cutting mechanism is arranged on the left side of the top of the workbench, and has two vertically symmetrically installed conveying structures, which cut the vertical side surfaces of the end covers of the square single-cell lithium battery in the process of conveying the square single-cell lithium battery downward; the horizontal cutting mechanism, the end cover falling off mechanism and the pushing mechanism are installed on the workbench from left to right, and the horizontal cutting mechanism has a horizontal conveying structure, and the square single-cell lithium battery that has been vertically cut is first horizontally cut in the process of conveying it to the right, and then the end covers are separated by the end cover falling off mechanism; the side cutting mechanism is installed on the front side of the pushing mechanism, and has two vertically symmetrically installed cutting machines, which cut the upper and lower sides of the square single-cell lithium battery when the pushing mechanism pushes the square single-cell lithium battery out.

[0008] Preferably, the vertical cutting mechanism includes a vertical conveyor belt, a feed pad, a feed frame and a cutting machine I. The two vertical conveyor belts are symmetrically arranged on the left side of the top of the workbench, and a feed hole is opened on the top of the workbench between the two vertical conveyor belts; the feed pad is evenly installed on the conveyor belt of the vertical conveyor belt; the feed frame is arranged between the vertical conveyor belts, and the vertical conveyor belt and the feed frame are combined into a feed port with a concave opening on the front side; the cutting machine I is symmetrically arranged on the left and right sides of the front side of the feed frame, the shortest distance between the saw blades of the cutting machine I is less than the width of the feed port, and the horizontal position of the cutting machine I can be adjusted in the left and right directions.

[0009] Preferably, the vertical cutting mechanism also includes a limiting structure I, which is installed on the front side of the blanking frame. The limiting structure I includes a limiting plate I, a spring and a roller I. The limiting plate I is set on the front side of the blanking frame through an axis sliding. The upper part of the limiting plate I is inclined outward, and a spring is connected between the limiting plate I and the blanking frame; the roller I is in a row and is rotatably set in the middle of the limiting plate I.

[0010] Preferably, the transverse cutting mechanism includes a transverse conveyor belt, a trapezoidal pad and a cutting machine II. The transverse conveyor belt is installed in a horizontal state below the workbench surface. A trapezoidal pad is provided on the upper part of the transverse conveyor belt, and the trapezoidal pad is in contact with the upper inner part of the conveyor belt of the transverse conveyor belt; there are two cutting machines II, which are arranged on the top of the workbench and the transverse conveyor belt. The cutting machines II are installed symmetrically up and down, and the distance between the cutting machines II can be adjusted vertically.

[0011] Preferably, the transverse cutting mechanism also includes a limiting structure II, which is installed on the transverse conveyor belts on the front and rear sides of the cutting machine II; the limiting structure II includes a limiting plate II and a roller II, and the limiting plate II is symmetrically arranged on the transverse conveyor belts on the front and rear sides of the cutting machine II, and two rows of rollers II are horizontally rotatably installed on the limiting plate II, and the left part of the limiting plate II is inclined outward.

[0012] Preferably, the end cover falling mechanism includes a pushing cylinder, a partitioning push plate, a partitioning bar and a blanking plate. The pushing cylinder is arranged on the top of the workbench on the right side of the cutting machine II; the partitioning push plate is slidably arranged on the top of the workbench in front of the pushing cylinder, and the telescopic end of the pushing cylinder is connected to the partitioning push plate; the partitioning bar is arranged on the trapezoidal pad below the partitioning push plate, and the left and right sides of the partitioning bar and the partitioning push plate are both pointed ends that are indented inward; the blanking plate is arranged on the transverse conveyor belt in front of the partitioning bar, and the blanking plate is installed tilted downward.

[0013] Preferably, the pushing mechanism includes a rodless cylinder and a pushing plate, the rodless cylinder is arranged on the top of the workbench on the right side of the pushing cylinder; the pushing plate is slidably arranged on the top of the workbench at the rodless cylinder, and the pushing plate is connected to the slider of the rodless cylinder.

[0014] Preferably, the side cutting mechanism includes an adapter plate, a cutting machine III, a blanking support plate, a roller III and a conical block. There are two adapter plates, which are symmetrically installed on the front side of the rodless cylinder; there are two cutting machines III, which are installed on the adapter plate, and the height of the cutting machine III can be adjusted; there are two blanking support plates, which are symmetrically arranged on the transverse conveyor belts on the left and right sides of the cutting machine III, and the blanking support plates are installed at a downward angle, and a row of rollers III are installed on each of the blanking support plates; there are two conical blocks, which are installed on the adapter plate in front of the saw blade of the cutting machine III, and the height of the conical block can be adjusted.

[0015] A refined disassembly process for a square single lithium battery cell, comprising the following steps: S1. Vertical cutting: Prismatic single-cell lithium batteries are placed through a blanking frame and conveyed downward by a vertical conveyor belt. During the conveying process, the limiting structure I limits the position of the square single-cell lithium battery so that the cutting line on the square single-cell lithium battery shell and the saw blade of the cutting machine I are on the same vertical level. Then, the cutting machine I cuts the left and right sides of the end cap of the square single-cell lithium battery; S2, horizontal cutting: After vertical cutting, the square single lithium battery falls onto the horizontal conveyor belt and is transported to the right. During the transportation process, the limiting structure II limits the square single lithium battery so that the cutting line on the square single lithium battery shell and the saw blade of the cutting machine II are on the same vertical level. Then, the cutting machine II cuts the upper and lower surfaces of the end cap of the square single lithium battery; S3, end cap separation: After being cut vertically and horizontally, the end cap continues to be transported to the right. During the transportation process, the cut marks pass through the separation push plate and the separation bar, so that the cut end cap continues to separate. At the same time, the end cap is separated from the square single lithium battery shell by the end cap shedding mechanism; S4, side cutting: After the end cap is detached, the square single lithium battery continues to be transported to the right. When the square single lithium battery moves to the position of the pushing mechanism, the pushing mechanism pushes the square single lithium battery forward. The side cutting mechanism cuts the outer shell of the square single lithium battery in the front-to-back direction and pushes the square single lithium battery out.

[0016] The present invention drives the square single lithium battery to be transported downward by the vertical cutting mechanism. During the transportation process, the outer shell of the end cap is vertically cut. The square single lithium battery that has been vertically cut enters the horizontal cutting mechanism. The horizontal cutting mechanism transports the square single lithium battery to the right side. During the transportation process, the outer shell of the end cap is horizontally cut. After the end cap is cut, it continues to be transported to the right side. During the transportation process, the end cap is detached and side cutting is performed. No other operations are required. The operation is simple, the cutting operation is highly continuous, and the disassembly efficiency of the square single lithium battery is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0018] Figure 2 It is a schematic diagram of the three-dimensional structure of the vertical cutting mechanism and the limiting structure I of the present invention.

[0019] Figure 3 It is a schematic diagram of the three-dimensional structure of the lower mechanism of the workbench of the present invention.

[0020] Figure 4 It is a schematic diagram of the three-dimensional structure of the transverse cutting mechanism and the limiting structure II of the present invention.

[0021] Figure 5 It is a schematic diagram of the three-dimensional structure of the end cover falling mechanism of the present invention.

[0022] Figure 6 It is a schematic diagram of the three-dimensional structure of the pushing mechanism and the side cutting mechanism of the present invention.

[0023] Figure 7 It is a schematic diagram of the three-dimensional structure of the pushing mechanism of the present invention.

[0024] Figure 8 It is a schematic diagram of the three-dimensional structure of the episiotomy mechanism of the present invention.

[0025] Figure 9 It is a schematic diagram of the three-dimensional structure of the conical block of the present invention.

[0026] Explanation of the accompanying drawings: Markings in the accompanying drawings: 1-workbench, 2-vertical cutting mechanism, 21-vertical conveyor belt, 22-feeding pad, 23-unloading frame, 24-cutting machine I, 3-limiting structure I, 31-limiting plate I, 32-spring, 33-roller I, 4-transverse cutting mechanism, 41-transverse conveyor belt, 42-trapezoidal pad, 43-cutting machine II, 5-limiting structure II, 51-limiting plate II, 52-roller II, 6-end cover falling mechanism, 61-pushing cylinder, 62-partitioning push plate, 63-partitioning bar, 64-unloading plate, 7-pushing mechanism, 71-rodless cylinder, 72-pushing plate, 8-side cutting mechanism, 81-adapter plate, 82-cutting machine III, 83-unloading support plate, 84-roller III, 85-conical block. DETAILED DESCRIPTION

[0027] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0028] Please also refer to Figures 1-9 The present invention provides a device for finely disassembling a rectangular single-cell lithium battery. The device comprises a workbench 1, a vertical cutting mechanism 2, a horizontal cutting mechanism 4, an end cap removal mechanism 6, a pushing mechanism 7, and a side cutting mechanism 8. The workbench 1 comprises a support leg and a tabletop. The vertical cutting mechanism 2 is disposed on the left side of the top of the workbench 1 and comprises two vertically symmetrically mounted conveying structures. As the rectangular single-cell lithium battery is conveyed downward, the vertical side faces of the end caps of the rectangular single-cell lithium battery are cut. The horizontal cutting mechanism 4, the end cap removal mechanism 6, and the pushing mechanism 7 are mounted on the workbench 1 from left to right. The horizontal cutting mechanism 4 comprises a horizontal conveying structure. As the vertically cut rectangular single-cell lithium battery is conveyed to the right, it is first horizontally cut and then separated by the end cap removal mechanism 6. The side cutting mechanism 8 is mounted in front of the pushing mechanism 7 and comprises two vertically symmetrically mounted cutters. As the pushing mechanism 7 pushes the rectangular single-cell lithium battery out, the side cutting mechanism 8 cuts the upper and lower sides of the rectangular single-cell lithium battery.

[0029] The present embodiment provides a device for fine disassembly of square single-cell lithium battery cells. Compared with the prior art, the square single-cell lithium battery only needs to be placed on the vertical cutting mechanism 2, and the vertical cutting mechanism 2 drives the square single-cell lithium battery to be transported downward. During the transportation process, the outer shell of the end cover is vertically cut. The square single-cell lithium battery that has been vertically cut enters the horizontal cutting mechanism 4, and the horizontal cutting mechanism 4 transports the square single-cell lithium battery to the right. During the transportation process, the outer shell of the end cover is horizontally cut, and after the end cover is cut, it continues to be transported to the right. During the transportation process, the end cover is detached and side cutting is performed. No other operations are required. The operation is simple, the cutting operation is highly continuous, and the disassembly efficiency of the square single-cell lithium battery is improved.

[0030] In a preferred embodiment, the vertical cutting mechanism 2 can be used as follows: Figure 2 As shown in the structure, the vertical cutting mechanism 2 includes a vertical conveyor belt 21, a feeding pad 22, a blanking frame 23 and a cutting machine I 24. The two vertical conveyor belts 21 are symmetrically arranged on the left side of the top of the workbench 1. The conveying directions of the conveyor belts on both sides are opposite. A feeding hole is opened on the top of the workbench 1 between the two vertical conveyor belts 21; the feeding pads 22 are evenly spaced and installed on the conveyor belts of the vertical conveyor belts 21. The feeding pads 22 on the two vertical conveyor belts 21 are symmetrically installed. The square single lithium battery is horizontally placed on the feeding pad 22 between the two vertical conveyor belts 21 and moves downward under the action of the vertical conveyor belts 21. The blanking frame 23 is arranged between the vertical conveyor belts 21, and the vertical conveyor belts 21 and the blanking frame 23 are combined into a concave feed port with an opening on the front side. The square single lithium battery is placed through the top of the feed port, and the blanking frame 23 limits the rear side and the left and right sides of the square single lithium battery; the cutting machine I 24 is symmetrically arranged on the left and right sides of the front side of the blanking frame 23. The cutting machine I 24 consists of a motor and a circular saw blade. The saw blade is installed on the output shaft of the motor. The shortest distance between the saw blades of the cutting machine I 24 is less than the width of the feed port, and the horizontal position of the cutting machine I 24 can be adjusted in the left and right directions.

[0031] Vertical cutting mechanism 2: Control the vertical conveyor belt 21 on the left to rotate clockwise and the vertical conveyor belt 21 on the right to rotate counterclockwise, and place the square single lithium battery to be disassembled from above the unloading frame 23 on the feeding pad 22 between the two vertical conveyor belts 21. The square single lithium battery is conveyed downward, and then the cutting machine I 24 is started to work. After the square single lithium battery contacts the saw blade of the cutting machine I 24, the cutting machine I 24 cuts the left and right sides of the square single lithium battery. The left and right positions of the cutting machine I 24 can be adjusted, and the cutting depth of the square single lithium battery by the cutting machine I 24 can be controlled to prevent damage to the battery cell.

[0032] In a preferred embodiment, the above-mentioned limiting structure I3 can be adopted as follows Figure 2 In the structure shown, the vertical cutting mechanism 2 also includes a limiting structure I3, which is installed on the front side of the blanking frame 23. When the square single lithium battery is placed between the feeding pads 22, if the square single lithium battery is placed more forward, so that the cutting line of the square single lithium battery is not aligned with the saw blade of the cutting machine I24, the limiting structure I3 can adjust the position of the square single lithium battery. The limiting structure I3 includes a limiting plate I31, a spring 32 and a roller I33. The limiting plate I31 is set on the front side of the blanking frame 23 through an axis sliding. The upper part of the limiting plate I31 is inclined outward to prevent the square single lithium battery transported downward from colliding with the limiting plate I31. A spring 32 is connected between the limiting plate I31 and the blanking frame 23. The spring 32 provides the limiting plate I31 with a buffer space; the roller I33 is in a row and is rotatably set in the middle of the limiting plate I31 to reduce the friction between the square single lithium battery and the limiting plate I31.

[0033] Limiting structure I3: If the square single lithium battery is placed further forward, during the downward conveying of the square single lithium battery, the square single lithium battery contacts the limiting plate I31. Under the action of the limiting plate I31, the square single lithium battery placed forward is pushed backward, so that the rear side of the square single lithium battery contacts the inner rear side of the blanking frame 23, so that the cutting line of the square single lithium battery is aligned with the saw blade of the cutting machine I24, thereby achieving precise cutting of the square single lithium battery shell.

[0034] In a preferred embodiment, the transverse cutting mechanism 4 can be used as follows Figure 3 and Figure 4 As shown in the structure, the transverse cutting mechanism 4 includes a transverse conveyor belt 41, a trapezoidal pad 42 and a cutter II 43. The transverse conveyor belt 41 is installed in a horizontal state below the table top of the workbench 1. The outer surface of the conveyor belt of the transverse conveyor belt 41 is provided with a push bar for conveniently pushing the material. The upper part of the transverse conveyor belt 41 is provided with a trapezoidal pad 42. The trapezoidal pad 42 is in contact with the inner upper part of the conveyor belt of the transverse conveyor belt 41. Under the action of the trapezoidal pad 42, the conveyor belt bulges upward; there are two cutters II 43, which are arranged on the top of the workbench 1 and on the transverse conveyor belt 41. The cutters II 43 are installed symmetrically up and down, and the distance between the cutters II 43 can be adjusted vertically.

[0035] Horizontal cutting mechanism 4: The square single lithium battery that has been cut vertically falls on the upper surface of the horizontal conveyor belt 41. Under the action of the horizontal conveyor belt 41, the square single lithium battery is transported to the right. When the square single lithium battery passes through the cutting machine II 43, the cutting machine II 43 cuts the upper and lower surfaces of the square single lithium battery shell.

[0036] In a preferred embodiment, the above-mentioned limiting structure II5 can be adopted as follows Figure 4In the structure shown, the transverse cutting mechanism 4 also includes a limiting structure II5, which is installed on the transverse conveyor belts 41 on the front and rear sides of the cutting machine II43. The limiting structure II5 is used to limit the square single lithium battery when the upper and lower sides of the square single lithium battery are cut; the limiting structure II5 includes a limiting plate II51 and a roller II52, and the limiting plate II51 is symmetrically arranged on the transverse conveyor belts 41 on the front and rear sides of the cutting machine II43. Two rows of rollers II52 are horizontally rotatably installed on the limiting plate II51. When the square single lithium battery contacts the limiting plate II51, the roller II52 can reduce the friction of the square single lithium battery moving. The left part of the limiting plate II51 is tilted outward to prevent the square single lithium battery transported to the right from colliding with the limiting plate II51.

[0037] Limiting structure II5: When the square single lithium battery that has been vertically cut falls on the horizontal conveyor belt 41, if the front and rear positions change, the cutting line of the square single lithium battery shell is not aligned with the saw blade of the cutting machine II43. When the square single lithium battery is conveyed to the right, due to the limitation of the limiting plate II51, the position of the square single lithium battery is corrected so that the cutting line of the square single lithium battery shell is aligned with the saw blade of the cutting machine II43, thereby achieving precise cutting of the square single lithium battery shell.

[0038] In a preferred embodiment, the end cover falling mechanism 6 can be adopted as follows Figure 5 In the structure shown, the end cover falling mechanism 6 includes a pushing cylinder 61, a separating push plate 62, a separating bar 63 and a blanking plate 64. The pushing cylinder 61 is arranged on the top of the workbench 1 on the right side of the cutting machine II 43; the separating push plate 62 is slidably arranged on the top of the workbench 1 in front of the pushing cylinder 61, and the telescopic end of the pushing cylinder 61 is connected to the separating push plate 62, and the separating push plate 62 is driven by the pushing cylinder 61 to move in the front and rear directions; the separating bar 63 is arranged on a trapezoidal pad below the separating push plate 62 On the plate 42, initially the dividing strip 63 and the dividing push plate 62 are both at the position of the cut of the square single lithium battery, and the left and right sides of the dividing strip 63 and the dividing push plate 62 are both tips that are indented inward. When the cut passes through the dividing strip 63 and the dividing push plate 62, the cut end cover will be squeezed toward the front side under the action of the dividing strip 63 and the dividing push plate 62; the blanking plate 64 is arranged on the horizontal conveyor belt 41 in front of the dividing strip 63, and the blanking plate 64 is installed tilted downward.

[0039] End cover falling mechanism 6: After vertical and horizontal cutting, the square single lithium battery shell has its end cover separated from the shell, but the end cover is still on the battery cell. At this time, the square single lithium battery continues to move to the right. When the square single lithium battery contacts the partition bar 63 and the partition push plate 62, the partition bar 63 and the partition push plate 62 push the end cover to move forward. At the same time, the pushing cylinder 61 is controlled to extend, driving the partition push plate 62 to move forward, driving the end cover to move forward, and at the same time, the partition bar 63 blocks the square single lithium battery to prevent the square single lithium battery from moving forward together. After the end cover is separated from the battery cell, it falls on the blanking plate 64 and is discharged outside the equipment. At the same time, the pushing cylinder 61 resets and drives the partition push plate 62 to reset; the automatic separation of the end cover and the battery cell is achieved through the partition bar 63 and the partition push plate 62, which facilitates the subsequent work.

[0040] In a preferred embodiment, the pushing mechanism 7 can be used as follows Figure 6 and Figure 7 As shown in the structure, the pushing mechanism 7 includes a rodless cylinder 71 and a pushing plate 72. The rodless cylinder 71 is arranged on the top of the workbench 1 on the right side of the pushing cylinder 61; the pushing plate 72 is slidably arranged on the top of the workbench 1 at the rodless cylinder 71, and the pushing plate 72 is connected to the slider of the rodless cylinder 71; when the square single lithium battery moves to the front side of the pushing plate 72, the pushing plate 72 is driven by the rodless cylinder 71 to move forward, and the square single lithium battery is pushed forward, and then the pushing plate 72 is driven by the rodless cylinder 71 to move backward and reset.

[0041] In a preferred embodiment, the above-mentioned side cutting mechanism 8 can be adopted as follows Figure 6 、 Figure 8 and Figure 9 As shown in the structure, the side cutting mechanism 8 includes an adapter plate 81, a cutting machine III82, a blanking support plate 83, a roller III84 and a conical block 85. There are two adapter plates 81, which are symmetrically installed on the front side of the rodless cylinder 71 in the upper and lower directions. One adapter plate 81 is installed on the workbench 1, and the other adapter plate 81 is installed on the transverse conveyor belt 41; there are two cutting machines III82, which are installed on the adapter plate 81, and the height of the cutting machine III82 can be adjusted; there are two blanking support plates 83, which are symmetrically arranged on the transverse conveyor belt 41 on the left and right sides of the cutting machine III82, and the blanking support plates 83 are installed at a downward angle, and a row of rollers III84 are installed on the blanking support plates 83; there are two conical blocks 85, which are installed on the adapter plate 81 on the front side of the saw blade of the cutting machine III82. The height of the conical block 85 can be adjusted, and the conical surface of the conical block 85 faces the rear side.

[0042] Side cutting mechanism 8: When the push plate 72 pushes the square single lithium battery to the front side, the cutting machine III 82 cuts the upper and lower sides of the square single lithium battery shell. At the same time, when the cut of the square single lithium battery shell passes through the conical block 85, the conical block 85 stretches the shell to the left and right sides along the cut to achieve the peeling of the shell and the battery cell. The peeled battery cell slides down along the roller III 84.

[0043] In summary, the present invention only requires placing the square single lithium battery to be disassembled into the blanking frame 23. During the transportation of the square single lithium battery, the vertical cutting, horizontal cutting and side cutting of the square single lithium battery can be completed, thereby realizing the disassembly of the square single lithium battery, with strong work continuity and high efficiency.

[0044] A refined disassembly process for a square single lithium battery cell, comprising the following steps: S1. Vertical cutting: Prismatic single lithium batteries are placed through the blanking frame 23 and conveyed downward by the vertical conveyor belt 21. During the conveying process, the limiting structure I3 limits the position of the prismatic single lithium battery so that the cutting line on the outer shell of the prismatic single lithium battery and the saw blade of the cutting machine I 24 are on the same vertical level. The cutting machine I 24 then cuts the left and right sides of the end cap of the prismatic single lithium battery. S2, transverse cutting: After vertical cutting, the square single lithium battery falls onto the transverse conveyor belt 41 and is conveyed to the right. During the conveying process, the limiting structure II5 limits the position of the square single lithium battery so that the cutting line on the square single lithium battery shell and the saw blade of the cutting machine II 43 are on the same vertical level. Then, the cutting machine II 43 cuts the upper and lower surfaces of the end cap of the square single lithium battery; S3, end cap separation: After being cut vertically and horizontally, the end cap continues to be transported to the right. During the transportation process, the cut marks pass through the separation push plate 62 and the separation bar 63, so that the cut end cap continues to separate. At the same time, the end cap separation mechanism 6 separates the cut end cap from the square single lithium battery shell; S4, side cutting: After the end cap is detached, the square single lithium battery continues to be transported to the right. When the square single lithium battery moves to the position of the pushing mechanism 7, the pushing mechanism 7 pushes the square single lithium battery forward. The side cutting mechanism 8 cuts the outer shell of the square single lithium battery in the front-to-back direction and pushes the square single lithium battery out.

[0045] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A device for fine disassembly of a square single lithium battery cell, comprising: A workbench (1) is provided with a vertical cutting mechanism (2) on the left side of the top; The invention is characterized in that the vertical cutting mechanism (2) has two vertically symmetrically installed conveying structures, and cuts the vertical side surfaces of the end caps of the square single lithium battery cells during the downward conveying of the square single lithium battery cells; The transverse cutting mechanism (4), the end cap falling mechanism (6) and the pushing mechanism (7) are installed on the workbench (1) from left to right. The transverse cutting mechanism (4) has a horizontal conveying structure. When the vertically cut square single lithium battery is conveyed to the right, it is first horizontally cut and then the end cap is separated by the end cap falling mechanism (6). The side cutting mechanism (8) is installed on the front side of the pushing mechanism (7) and has two vertically symmetrically installed cutting machines. When the pushing mechanism (7) pushes out the square single lithium battery, the upper and lower surfaces of the square single lithium battery are cut.

2. The device for finely disassembling a square single lithium battery cell according to claim 1, characterized in that: The vertical cutting mechanism (2) comprises: Two vertical conveyor belts (21) are symmetrically arranged on the left side of the top of the workbench (1), and a feeding hole is opened on the top of the workbench (1) between the two vertical conveyor belts (21); Feed pads (22) are evenly spaced and mounted on the conveyor belt of the vertical conveyor belt (21); A material unloading frame (23) is arranged between the vertical conveyor belts (21), wherein the vertical conveyor belts (21) and the material unloading frame (23) are combined to form a concave feed port with a front opening; The cutting machine I (24) is symmetrically arranged on the left and right sides of the front side of the blanking frame (23). The shortest distance between the saw blades of the cutting machine I (24) is less than the width of the feed port. The horizontal position of the cutting machine I (24) can be adjusted in the left and right directions.

3. The device for finely disassembling a square single lithium battery cell according to claim 2, characterized in that: The vertical cutting mechanism (2) further comprises: The limiting structure I (3) is installed on the front side of the blanking frame (23); the limiting structure I (3) includes: A limit plate I (31) is slidably arranged on the front side of the blanking frame (23) via an axis, the upper portion of the limit plate I (31) is inclined outward, and a spring (32) is connected between the limit plate I (31) and the blanking frame (23); Roller I (33), roller I (33) is a row, and is rotatably arranged in the middle of the limit plate I (31).

4. The device for finely disassembling a square single lithium battery cell according to claim 1, characterized in that: The transverse cutting mechanism (4) comprises: A transverse conveyor belt (41) is installed in a horizontal state below the workbench (1) surface, and a trapezoidal pad (42) is provided on the upper portion of the transverse conveyor belt (41), and the trapezoidal pad (42) is in contact with the upper inner portion of the conveyor belt of the transverse conveyor belt (41); Cutting machine II (43), there are two cutting machines II (43), which are arranged on the top of the workbench (1) and the transverse conveyor belt (41). The cutting machines II (43) are installed symmetrically up and down, and the distance between the cutting machines II (43) can be adjusted vertically.

5. The device for finely disassembling a square single lithium battery cell according to claim 4, characterized in that: The transverse cutting mechanism (4) further comprises: A limiting structure II (5), the limiting structure II (5) is installed on the transverse conveyor belt (41) on both sides of the front and rear of the cutting machine II (43); The limiting structure II (5) includes: The limiting plate II (51) is symmetrically arranged on the transverse conveyor belt (41) on both sides of the front and rear of the cutting machine II (43). Two rows of rollers II (52) are horizontally rotatably mounted on the limiting plate II (51). The left portion of the limiting plate II (51) is tilted outward.

6. The device for finely disassembling a square single lithium battery cell according to claim 4, characterized in that: The end cover falling mechanism (6) comprises: A push cylinder (61) is provided on the top of the workbench (1) on the right side of the cutting machine II (43); A partition push plate (62) is slidably arranged on the top of the workbench (1) in front of the push cylinder (61), and the telescopic end of the push cylinder (61) is connected to the partition push plate (62); A separation bar (63) is provided on the trapezoidal pad (42) below the separation push plate (62), wherein both the left and right sides of the separation bar (63) and the separation push plate (62) have inwardly indented tips; A blanking plate (64) is arranged on the transverse conveyor belt (41) in front of the dividing strip (63), and the blanking plate (64) is installed tilted downward.

7. The device for finely disassembling a square single lithium battery cell according to claim 6, characterized in that: The pushing mechanism (7) comprises: A rodless cylinder (71) is arranged on the top of the workbench (1) to the right of the push cylinder (61); A push plate (72) is slidably arranged on the top of the workbench (1) at the rodless cylinder (71), and the push plate (72) is connected to the slider of the rodless cylinder (71).

8. The device for finely disassembling a square single lithium battery cell according to claim 7, characterized in that: The episiotomy mechanism (8) comprises: The adapter plate (81) is composed of two pieces, which are symmetrically mounted on the front side of the rodless cylinder (71) in the upper and lower parts; Cutting machine III (82), there are two cutting machines III (82), which are installed on the adapter plate (81), and the height of the cutting machine III (82) can be adjusted; A material unloading support plate (83), two material unloading support plates (83), symmetrically arranged on the transverse conveyor belt (41) on the left and right sides of the cutting machine III (82), the material unloading support plates (83) are installed with a downward tilt, and a row of rollers III (84) are installed on each of the material unloading support plates (83); The conical block (85) is composed of two pieces and is mounted on the adapter plate (81) on the front side of the saw blade of the cutting machine III (82). The height of the conical block (85) can be adjusted.

9. A refined disassembly process for a square single lithium battery cell, characterized in that: The device for finely disassembling a square single lithium battery cell according to claim 8 comprises the following steps: S1. Vertical cutting: The square single lithium battery is placed through the blanking frame (23), and the square single lithium battery is conveyed downward under the action of the vertical conveyor belt (21). During the conveying process, the limiting structure I (3) limits the square single lithium battery so that the cutting line on the square single lithium battery shell and the saw blade of the cutting machine I (24) are in the same vertical horizontal plane. Then the cutting machine I (24) cuts the left and right sides of the end cover of the square single lithium battery; S2, cross-cutting: After vertical cutting, the square single lithium battery falls onto the horizontal conveyor belt (41) and is conveyed to the right. During the conveying process, the limiting structure II (5) limits the square single lithium battery so that the cutting line on the outer shell of the square single lithium battery and the saw blade of the cutting machine II (43) are in the same vertical horizontal plane. Then the cutting machine II (43) cuts the upper and lower surfaces of the end cover of the square single lithium battery; S3, end cap separation: After being cut vertically and horizontally, the end cap is continuously conveyed to the right. During the conveying process, the cut passes through the separation push plate (62) and the separation bar (63), so that the cut end cap continues to separate. At the same time, the cut end cap is separated from the square single lithium battery shell by the end cap falling mechanism (6); S4, side cutting: After the end cover is detached, the square single lithium battery continues to be transported to the right side. When the square single lithium battery moves to the position of the pushing mechanism (7), the pushing mechanism (7) pushes the square single lithium battery forward. The side cutting mechanism (8) cuts the outer shell of the square single lithium battery in the front-to-back direction and pushes the square single lithium battery out.

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