A new energy vehicle battery non-destructive disassembly device and disassembly method

Abstract

The application provides a new energy automobile battery non-destructive disassembling device and disassembling method, and belongs to the technical field of new energy automobile battery recycling, which comprises a disassembling workbench and a lithium battery pack, and further comprises a feeding mechanism, through the limiting design inside the feeding mechanism, under the action of gravity, automatic arrangement and continuous discharge can be realized through the automatic falling of the lithium battery pack, and meanwhile, the lithium battery pack can be automatically cut through the cutting blade arranged on the side of the feeding mechanism. When the first sealing sliding block bottom of the application is in contact with the diaphragm inside the lithium battery pack, the pressure is transmitted through the second compression spring, so that the movable clamping block and the fixed clamping block are opened, and when the reset is performed, the diaphragm in the lithium battery pack can be automatically clamped and wound through the gas, the integrity of the diaphragm is ensured, the breakage of the diaphragm is reduced, the efficiency of disassembly and recycling is improved, and the pollution caused by the breakage and scattering of the diaphragm is reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of new energy automobile battery recycling, in particular to a new energy automobile battery non-destructive disassembly device and disassembly method. BACKGROUND

[0002] The existing new energy automobile battery disassembly mainly separates the battery core into positive plate, negative plate and separator three parts, through complete disassembly, recycling and reuse of lithium battery, the automation level and recycling efficiency can be improved, the technical maturity and safety of production process are ensured, the economic feasibility and reliability are considered, the efficient recycling and reuse of new energy automobile battery is realized, and the circular development of renewable resources is promoted.

[0003] The prior art patent with publication number CN115781709A discloses a new energy automobile battery non-destructive disassembly robot and disassembly method, which comprises a fixed frame, a guide frame is fixedly connected to the top end face of the fixed frame, a connecting spring is fixedly connected to the inner side end face of the guide frame, the other end of the connecting spring is fixedly connected with a connecting push plate, the connecting push plate is fixedly connected with a guide rod, the guide rod penetrates through and is slidingly connected to the side end of the guide frame, a waste soft package battery is arranged in the guide frame, a first mechanical arm assembly and a second mechanical arm assembly are installed on the top end face of the fixed frame, and an automatic winding assembly is installed in the fixed frame. The robot solves the problem that the existing new energy automobile battery disassembly equipment cannot automatically and stably wind and separate and collect the separated positive plate, negative plate and separator, thereby ensuring the convenience of subsequent recycling and utilization of the positive plate, negative plate and separator.

[0004] However, the technical solution still has certain limitations. When the electrode plate of the new energy automobile battery is disassembled, an adhesive is generally coated between the electrode plate of the new energy automobile battery and the internal lithium cobalt oxide medium, which easily causes the electrode plate to be difficult to separate. Not only does this affect the efficiency of disassembling the new energy automobile battery, but it also easily causes the electrode plate to tear during disassembly, affecting the integrity of the electrode plate disassembly.

[0005] How to invent a new energy automobile battery non-destructive disassembly device and disassembly method to improve these problems has become a problem to be solved by those skilled in the art. SUMMARY

[0006] In order to make up for the above shortcomings, the present application provides a new energy automobile battery non-destructive disassembly device and disassembly method, which aims to improve the low disassembly efficiency and easy breakage of the electrode plate of the prior art solution.

[0007] The present application is implemented as follows:

[0008] The application provides a new energy automobile battery non-destructive disassembly device, which comprises a disassembly workbench and a lithium battery pack and further comprises:

[0009] A conveying conveying belt is used for pushing the lithium battery pack to move.

[0010] A feeding mechanism is internally limited by design, and under the action of gravity, the lithium battery pack can be automatically arranged and continuously discharged through automatic falling, and the lithium battery pack can be automatically cut through the cutting blade arranged on the side of the feeding mechanism.

[0011] The first diaphragm unwinding mechanism can automatically clamp and wind the first layer of diaphragm in the lithium battery pack after being cut, and automatically collect it into the collection bin arranged behind the first diaphragm unwinding mechanism, and can also automatically spray organic solvent to remove the adhesive on the electrode, facilitating subsequent disassembly and recycling.

[0012] The electrode sheet unwinding mechanism can automatically adsorb and wind the exposed electrode sheet in the lithium battery pack through the rotation of the electrode sheet unwinding mechanism, and automatically collect it into the collection bin.

[0013] The second diaphragm unwinding mechanism can clamp and wind the diaphragm between the positive and negative sheets in the lithium battery pack after being collected by the first diaphragm unwinding mechanism and the electrode sheet unwinding mechanism, and automatically collect it into the collection bin.

[0014] Preferably, the side wall of the disassembly workbench is rotatably connected with a driving shaft and a transmission shaft through bearings, the outer side wall of the driving shaft and the transmission shaft is provided with a conveying conveying belt, the side wall of the disassembly workbench is further fixedly installed with a driving motor with an output shaft connected with the driving shaft, and the side wall of the disassembly workbench is further fixedly installed with a plurality of collection bins.

[0015] Preferably, the cutting blade is designed to be inclined, the material guide chute is also designed to be inclined, and the side wall of the disassembly workbench is provided with a rectangular groove in communication with the bottom of the material guide chute and the opening of the collection groove.

[0016] Preferably, the limiting push block is designed to be symmetrical, and the gap between the limiting push blocks matches the width of the lithium battery pack.

[0017] Preferably, the second diaphragm unwinding mechanism is rotatably connected with the disassembling workbench through a bearing, and an end of the second diaphragm unwinding mechanism extending to the outside of the disassembling workbench is provided with a third transmission gear, a plurality of sealing sliding grooves are arranged in the side wall of the second diaphragm unwinding mechanism in an annular shape, a first sealing sliding block is movably sleeved and limited in the inner side of the sealing sliding groove, an inner sealing sliding block is movably sleeved and limited in one side of the first sealing sliding block extending to the inside of the sealing sliding groove, a second compression spring is fixedly installed between the inner sealing sliding block and the inside of the sealing sliding groove, a plurality of sealing cavities are arranged in the inside of the first sealing sliding block, a communication groove in communication with the inner sealing sliding block and the inside of the sealing cavity is arranged in the inside of the first sealing sliding block, a movable clamping block is movably sleeved and limited in the inside of the sealing cavity, a third compression spring is fixedly installed between the movable clamping block and the sealing cavity, a fixed clamping block corresponding to the movable clamping block is further fixedly installed at the bottom of the first sealing sliding block, and a symmetrically designed corrugated clamping block is further fixedly installed between the fixed clamping block and the movable clamping block.

[0018] Preferably, the electrode sheet unwinding mechanism is rotatably connected with the disassembling workbench through a bearing, and a second transmission gear is fixedly installed at the part of the electrode sheet unwinding mechanism extending to the outside of the disassembling workbench, a sealing pneumatic suction block is movably sleeved and limited in the side wall of the electrode sheet unwinding mechanism, a first compression spring is fixedly installed between the sealing pneumatic suction block and the inside of the electrode sheet unwinding mechanism, a plurality of arc-shaped suction grooves are arranged in one end of the sealing pneumatic suction block extending to the outside of the electrode sheet unwinding mechanism, and a communication air pipe in communication with the gap between the arc-shaped suction grooves and the inside of the electrode sheet unwinding mechanism is arranged in the inside of the sealing pneumatic suction block.

[0019] Preferably, the sealing pneumatic suction block is a flexible rubber material member.

[0020] Preferably, the first diaphragm unwinding mechanism is rotatably connected with the disassembling workbench through a bearing, and a first transmission gear is fixedly installed at the part of the first diaphragm unwinding mechanism extending to the outside of the disassembling workbench, a liquid storage cavity is arranged in the inside of the first diaphragm unwinding mechanism, a second sealing sliding block of the same design as the first sealing sliding block is movably sleeved and limited in the side wall of the first diaphragm unwinding mechanism, a liquid spraying block is fixedly installed on the side wall of the second sealing sliding block, a liquid spraying cavity is arranged in the inside of the liquid spraying block, a communication pipe in communication with the inside of the liquid storage cavity is fixedly installed in the inside of the liquid spraying cavity, a plurality of movable arc-shaped blocks matched with the outer contour of the first diaphragm unwinding mechanism are movably sleeved and limited on one side of the liquid spraying cavity close to the first diaphragm unwinding mechanism, a reset spring is fixedly installed between the movable arc-shaped blocks and the inside of the liquid spraying cavity, and a plurality of fixed nozzles in communication with the inner cavity of the liquid spraying cavity are further fixedly installed on the outside of the liquid spraying block.

[0021] Preferably, the transmission shaft extending to the outside of the disassembling workbench is provided with a driving gear, and the first transmission gear, the second transmission gear, the third transmission gear and the driving gear are drivingly connected through a set of transmission belts.

[0022] A new energy vehicle battery non-destructive disassembly method, the method utilizes the new energy vehicle battery non-destructive disassembly device of any one of the above, comprising the following steps:

[0023] The discharged lithium battery pack is arranged in the feeding mechanism;

[0024] The lithium battery pack is moved by the conveying material belt;

[0025] The lithium battery pack is automatically cut by the cutting blade, and the top of the lithium battery pack is removed;

[0026] The inner primary diaphragm of the lithium battery pack is removed by the first diaphragm unwinding mechanism;

[0027] The organic solvent adhesive is sprayed into the lithium battery pack by the first diaphragm unwinding mechanism;

[0028] The electrode sheet and the inner diaphragm in the lithium battery pack are removed by the electrode sheet unwinding mechanism and the second diaphragm unwinding mechanism.

[0029] The beneficial effects of the present application are:

[0030] The compression between the movable arc-shaped block and the liquid spraying warehouse can be driven by the movement of the second sealing sliding block, so that the organic solvent in the liquid spraying warehouse is sprayed out from the fixed nozzle to the two sides of the lithium battery pack, the adhesive between the electrode sheet and the lithium cobaltate is dissolved, the lithium cobaltate and the positive electrode sheet in the lithium battery are separated and loosened, the subsequent winding of the electrode sheet in the lithium battery pack is facilitated, and the efficiency of the disassembly and recovery of the electrode sheet in the lithium battery pack is effectively improved.

[0031] When the first sealing sliding block bottom contacts the inner diaphragm of the lithium battery pack, the pressure received is transmitted by the second compression spring, so that the movable clamp block and the fixed clamp block are opened, and when the reset is performed, the diaphragm in the lithium battery pack is automatically clamped and wound by the pneumatic, compared with the existing adsorption collection, the diaphragm can be collected efficiently by the pneumatic clamping and winding, while the integrity of the diaphragm is ensured, the diaphragm is broken, the efficiency of the disassembly and recovery is improved, and the pollution caused by the breakage and scattering of the diaphragm is reduced; at the same time, the first diaphragm unwinding mechanism, the electrode sheet unwinding mechanism and the second diaphragm unwinding mechanism designed in sequence can sequentially remove and collect the diaphragm and the electrode sheet in the lithium battery pack, realize the scientific and efficient collection of the lithium battery pack, and ensure the integrity of the diaphragm and the positive and negative electrode materials. BRIEF DESCRIPTION OF DRAWINGS

[0032] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying any creative work.

[0033] Figure 1 This is a schematic diagram of the overall structure of a non-destructive disassembly device for new energy vehicle batteries provided by an embodiment of the present invention;

[0034] Figure 2 This is a schematic diagram of the overall structure of a non-destructive disassembly device for new energy vehicle batteries provided by an embodiment of the present invention;

[0035] Figure 3 This is a schematic diagram of the power structure of a non-destructive disassembly device for new energy vehicle batteries provided by an embodiment of the present invention;

[0036] Figure 4 This is a schematic diagram of the internal structure of the second diaphragm winding mechanism of a non-destructive disassembly device for new energy vehicle batteries provided by an embodiment of the present invention;

[0037] Figure 5 This is an embodiment of the present invention Figure 4 A magnified schematic diagram of point A;

[0038] Figure 6 Schematic diagram of a partition provided between a movable clamping block and a first sealing slider of a non-destructive disassembly device for a new energy vehicle battery provided by an embodiment of the present invention;

[0039] Figure 7 This is a structural schematic diagram of a second diaphragm winding mechanism of a non-destructive disassembly device for a new energy vehicle battery provided by an embodiment of the present invention for winding a diaphragm;

[0040] Figure 8 This is an embodiment of the present invention Figure 7 A magnified schematic diagram of point B;

[0041] Figure 9 This is a schematic diagram of the overall structure of the first diaphragm winding mechanism of a non-destructive disassembly device for a new energy vehicle battery provided by an embodiment of the present invention;

[0042] Figure 10 This is a schematic diagram of the internal structure of a liquid spraying chamber of a non-destructive disassembly device for a new energy vehicle battery provided by an embodiment of the present invention;

[0043] Figure 11It is an internal structure schematic view of an electrode sheet unwinding mechanism of a new energy automobile battery non-destructive disassembly device provided by the embodiment of the application.

[0044] In the figure: 1, disassembly workbench; 2, conveying and feeding belt; 3, feeding mechanism; 4, lithium battery pack; 5, first diaphragm unwinding mechanism; 6, electrode sheet unwinding mechanism; 7, second diaphragm unwinding mechanism; 11, driving shaft; 12, transmission shaft; 13, driving motor; 14, collection bin; 21, limiting push block; 22, limiting clamping block; 31, cutting blade; 32, material guiding chute; 33, collection groove; 34, limiting pad plate; 51, first transmission gear; 52, liquid storage bin; 53, second sealing sliding block; 54, liquid spraying block; 55, communication pipe; 61, second transmission gear; 62, sealing pneumatic suction block; 63, first compression spring; 64, arc-shaped suction groove; 65, communication air pipe; 71, third transmission gear; 72, sealing sliding groove; 73, first sealing sliding block; 74, inner sealing sliding block; 75, second compression spring; 76, sealing bin; 77, movable clamping block; 78, third compression spring; 79, fixed clamping block; 121, driving gear; 541, liquid spraying bin; 542, movable arc-shaped block; 543, return spring; 544, fixed nozzle; 761, communication groove; 791, corrugated clamping block. DETAILED DESCRIPTION

[0045] To make the purpose, technical solutions and advantages of the embodiments of the application clearer, the technical solutions in the embodiments of the application will be described clearly and completely below with reference to the drawings in the embodiments of the application. Obviously, the described embodiments are some of the embodiments of the application, rather than all the embodiments of the application. Based on the embodiments in the application, all other embodiments obtained by those skilled in the art without creative work fall within the protection scope of the application.

[0046] Reference Figures 1-11 A new energy automobile battery non-destructive disassembly device, comprising a disassembly workbench 1 and a lithium battery pack 4, further comprising:

[0047] A conveying and feeding belt 2 is used to push the lithium battery pack 4 to move;

[0048] A feeding mechanism 3 is internally limited, and under the action of gravity, the lithium battery pack 4 can be automatically arranged and continuously discharged by automatic falling, and the lithium battery pack 4 can be automatically cut by the cutting blade 31 arranged on the side of the feeding mechanism 3;

[0049] The first diaphragm unwinding mechanism 5 can automatically clamp and wind the first layer of diaphragm inside the cut lithium battery pack 4 and automatically collect it into the collection bin 14 arranged behind the first diaphragm unwinding mechanism 5 when the lithium battery pack 4 moves, and can automatically spray organic solvent to remove the adhesive on the electrode, facilitating subsequent disassembly and recycling.

[0050] The electrode sheet unwinding mechanism 6 can automatically adsorb and wind the exposed electrode sheet inside the lithium battery pack 4 and automatically collect it into the collection bin 14 by rotating the electrode sheet unwinding mechanism 6 when the lithium battery pack 4 moves.

[0051] The second diaphragm unwinding mechanism 7 can clamp and wind the diaphragm between the positive and negative electrode sheets inside the lithium battery pack 4 and automatically collect it into the collection bin 14 after the first diaphragm unwinding mechanism 5 and the electrode sheet unwinding mechanism 6 are collected.

[0052] Referring to Figures 1-3 The side wall of the disassembly workbench 1 is rotatably connected with a driving shaft 11 and a transmission shaft 12 through bearings, the outer side wall of the driving shaft 11 and the transmission shaft 12 is provided with a conveying belt 2, the side wall of the disassembly workbench 1 is also fixedly installed with a driving motor 13 whose output shaft is connected with the driving shaft 11, and the side wall of the disassembly workbench 1 is also fixedly installed with multiple collection bins 14, the feeding mechanism 3 includes a frame matched with the lithium battery pack 4, the bottom of the feeding mechanism 3 is not in contact with the conveying belt 2, and the inner side wall of the bottom of the feeding mechanism 3 is fixedly and symmetrically installed with a limiting pad 34, the side edge of the feeding mechanism 3 is provided with a sliding groove for the lithium battery pack 4 to pass through, and the side wall of the feeding mechanism 3 is also fixedly installed with a cutting blade 31, the side edge of the cutting blade 31 is fixedly installed with a material guiding chute 32, the side wall of the disassembly workbench 1 is fixedly installed with a collection groove 33, and the surface of the conveying belt 2 is fixedly installed with multiple limiting push blocks 21 and limiting clamping blocks 22 which are evenly distributed.

[0053] Further, the cutting blade 31 is designed to be inclined, the material guiding chute 32 is also designed to be inclined, and the side wall of the disassembly workbench 1 is provided with a rectangular groove in communication with the bottom of the material guiding chute 32 and the opening of the collection groove 33.

[0054] It should be noted that the limiting push blocks 21 are designed to be symmetrical, and the gap between the limiting push blocks 21 matches the width of the lithium battery pack 4.

[0055] Referring to Figures 4-7, the second diaphragm unwinding mechanism 7 is rotatably connected with the disassembling workbench 1 through a bearing, and an end of the second diaphragm unwinding mechanism 7 extending to the outside of the disassembling workbench 1 is provided with a third transmission gear 71, a plurality of sealing sliding grooves 72 are arranged in the side wall of the second diaphragm unwinding mechanism 7 in a ring shape, a first sealing sliding block 73 is movably sleeved and limited in the inner side of the sealing sliding groove 72, an inner sealing sliding block 74 is movably sleeved and limited on one side of the first sealing sliding block 73 extending to the inside of the sealing sliding groove 72, a second compression spring 75 is fixedly installed between the inner sealing sliding block 74 and the inside of the sealing sliding groove 72, a plurality of sealing cavities 76 are arranged in the inside of the first sealing sliding block 73, a communication groove 761 communicating with the inside of the inner sealing sliding block 74 and the sealing cavity 76 is arranged in the inside of the first sealing sliding block 73, a movable clamping block 77 is movably sleeved and limited in the inside of the sealing cavity 76, a third compression spring 78 is fixedly installed between the movable clamping block 77 and the sealing cavity 76, a fixed clamping block 79 corresponding to the movable clamping block 77 is further fixedly installed on the bottom of the first sealing sliding block 73, and a corrugated clamping block 791 symmetrically designed is further fixedly installed between the fixed clamping block 79 and the movable clamping block 77.

[0056] With reference to Figure 11 , the electrode sheet unwinding mechanism 6 is rotatably connected with the disassembling workbench 1 through a bearing, and a second transmission gear 61 is fixedly installed on the part of the electrode sheet unwinding mechanism 6 extending to the outside of the disassembling workbench 1, a sealing pneumatic suction block 62 is movably sleeved and limited in the side wall of the electrode sheet unwinding mechanism 6, a first compression spring 63 is fixedly installed between the inside of the sealing pneumatic suction block 62 and the electrode sheet unwinding mechanism 6, a plurality of arc-shaped suction grooves 64 are arranged in one end of the sealing pneumatic suction block 62 extending to the outside of the electrode sheet unwinding mechanism 6, and a communication gas pipe 65 communicating the gap between the arc-shaped suction grooves 64 and the inside of the electrode sheet unwinding mechanism 6 is arranged in the inside of the sealing pneumatic suction block 62.

[0057] Further, the sealing pneumatic suction block 62 is a flexible rubber material member.

[0058] Further, the first diaphragm unwinding mechanism 5 is rotatably connected to the disassembly workbench 1 through a bearing, and a part of the first diaphragm unwinding mechanism 5 extending to the outside of the disassembly workbench 1 is fixedly installed with a first transmission gear 51, the inside of the first diaphragm unwinding mechanism 5 is provided with a liquid storage compartment 52, the side wall of the first diaphragm unwinding mechanism 5 is movably sleeved with a second sealing sliding block 53 which is designed the same as the first sealing sliding block 73, the side wall of the second sealing sliding block 53 is fixedly installed with a liquid spraying block 54, the inside of the liquid spraying block 54 is provided with a liquid spraying compartment 541, the inside of the liquid spraying compartment 541 is fixedly installed with a group of communication pipes 55 which are in communication with the inside of the liquid storage compartment 52, one side of the liquid spraying compartment 541 close to the first diaphragm unwinding mechanism 5 is movably sleeved with a group of movable arc-shaped blocks 542 which are matched with the outer contour of the first diaphragm unwinding mechanism 5, the inside of the liquid spraying compartment 541 and the movable arc-shaped blocks 542 are fixedly installed with return springs 543, and the outside of the liquid spraying block 54 is further fixedly installed with a plurality of fixed nozzles 544 which are in communication with the inner cavity of the liquid spraying compartment 541.

[0059] It should be noted that the fixed nozzles 544 and the communication pipes 55 are provided with one-way valves, the flow direction of the one-way valves in the communication pipes 55 is from the inside of the liquid storage compartment 52 to the inside of the liquid spraying compartment 541, and the flow direction of the one-way valves in the fixed nozzles 544 is from the inside of the liquid spraying compartment 541 to the outside of the fixed nozzles 544, when the second sealing sliding block 53 moves to drive the liquid spraying block 54 to move, the movable arc-shaped blocks 542 are extruded between the first diaphragm unwinding mechanism 5, and the organic solvents in the liquid spraying compartment 541 on both sides are sprayed to both ends of the lithium battery pack 4, which can effectively remove the adhesive on the electrode, facilitate the dissolution of the adhesive between the aluminum foil and the lithium cobaltate, make the lithium cobaltate and the aluminum foil separate, facilitate the separation of the electrode, and facilitate the subsequent separation and recovery of the electrode sheet, when the second sealing sliding block 53 is reset, the movable arc-shaped blocks 542 are reset under the action of the return springs 543, the organic solvents in the liquid storage compartment 52 can be sucked into the inside of the liquid spraying compartment 541 through the communication pipes 55, and the subsequent circular spraying is facilitated.

[0060] It should be noted that the part of the transmission shaft 12 extending to the outside of the disassembly workbench 1 is provided with a drive gear 121, and the first transmission gear 51, the second transmission gear 61, the third transmission gear 71 and the drive gear 121 are drivingly connected through a group of transmission belts.

[0061] Specifically, since the overall size and the number of teeth of the drive gear 121 are greater than the size and the number of teeth of the first transmission gear 51, the second transmission gear 61 and the third transmission gear 71, there is a speed difference between the first transmission gear 51, the second transmission gear 61, the third transmission gear 71 and the conveying and feeding belt 2.

[0062] And for the bottom of the remaining battery pack 4 after the top, the electrode sheet and the diaphragm are disassembled, the bottom of the remaining battery pack 4 can be Figures 1-3The bottom part of the battery pack 4 is wound into the corresponding collection bin 14, or the collection device can be directly arranged at the lower side of the tail end of the conveying belt 2, so that it directly falls into the collection device under the action of gravity.

[0063] A non-destructive disassembly method of a new energy automobile battery, comprising the following steps:

[0064] S1: placing the discharged lithium battery pack 4 in the internal arrangement of the feeding mechanism 3;

[0065] S2: moving the lithium battery pack 4 by the conveying belt 2;

[0066] S3: automatically cutting the lithium battery pack 4 by the cutting blade 31 to remove the top of the lithium battery pack 4, thereby exposing the inside of the lithium battery pack 4;

[0067] S4: removing the initial layer of the separator in the lithium battery pack 4 by the first separator unwinding mechanism 5;

[0068] S5: spraying organic solvent to dissolve the adhesive in the lithium battery pack 4 by the first separator unwinding mechanism 5;

[0069] S6: removing the electrode sheet and the internal separator in the lithium battery pack 4 by the electrode sheet unwinding mechanism 6 and the second separator unwinding mechanism 7.

[0070] The working principle of the non-destructive disassembly device and method of the new energy automobile battery:

[0071] Referring to Figure 1 , first, the lithium battery pack 4 after discharge treatment is uniformly placed in the internal arrangement of the feeding mechanism 3, and the lithium battery pack 4 can be supported by the limiting pad plate 34 at the bottom of the feeding mechanism 3, then the driving motor 13 is controlled to be energized and started, the driving motor 13 drives the driving shaft 11 to rotate, drives the conveying belt 2 to rotate, and further drives the transmission shaft 12 to rotate, referring to Figure 3 , at the same time, the driving gear 121 is driven to rotate by the transmission shaft 12, the first transmission gear 51, the second transmission gear 61, and the third transmission gear 71 are synchronously rotated by the transmission belt, and at the same time, since the overall size and the number of teeth of the driving gear 121 are greater than the size and the number of teeth of the first transmission gear 51, the second transmission gear 61, and the third transmission gear 71, there is a speed difference between the first transmission gear 51, the second transmission gear 61, the third transmission gear 71, and the conveying belt 2.

[0072] When the conveying conveying belt 2 rotates, the limiting block 22 passes through the lithium battery pack 4, and the bottom group of lithium battery packs 4 can be pushed away along the limiting base plate 34 and pushed towards the cutting blade 31. The limiting block 22 can drive the lithium battery pack 4, and the limiting block 21 can limit the lithium battery pack 4. When the limiting block 22 pushes the lithium battery pack 4 to pass through the cutting blade 31, the top of the lithium battery pack 4 can be cut by the cutting blade 31. The top of the lithium battery pack 4 can be removed by the cutting blade 31 to expose the inside of the lithium battery pack 4. It should be noted that the inside of the lithium battery pack 4 is arranged in the form of diaphragm-negative plate-diaphragm-positive. The limiting block 22 pushes the cut lithium battery pack 4 to first pass through the first diaphragm unwinding mechanism 5. At the same time, the cut part of the lithium battery pack 4 enters the guide chute 32 through the cutting blade 31, and then falls into the inside of the collecting groove 33 through the inclined design of the guide chute 32 to realize automatic recycling of the material.

[0073] Since the second sealing sliding block 53 and the first sealing sliding block 73 adopt the same structure and technical scheme, taking the second diaphragm unwinding mechanism 7 as an example, referring to Figures 4-8 When the second diaphragm unwinding mechanism 7 rotates to the bottom of the first sealing sliding block 73 and the inside of the lithium battery pack 4 contacts the diaphragm, under the action of the contact stress, the first sealing sliding block 73 is pushed into the sealing sliding groove 72. At this time, the second compression spring 75 is subjected to pressure, the pressure between the inner sealing sliding block 74 and the first sealing sliding block 73 increases, and under the pressure transmission effect, the pressure is transmitted to the inside of the sealing bin 76 through the communication groove 761, which can drive the movable clamping block 77 to move and compress the third compression spring 78. Referring to Figure 6 , the movable clamping block 77 and the inside of the first sealing sliding block 73 are also provided with a sealing sliding piece, which can maintain the air tightness of the inside of the sealing bin 76 when the movable clamping block 77 moves. When the pressure in the inside of the sealing bin 76 increases, the movable clamping block 77 moves away from the fixed clamping block 79. When the movable clamping block 77 and the fixed clamping block 79 move away from the lithium battery pack 4 and are out of contact, the internal pressure returns to normal. At this time, under the elastic force of the second compression spring 75 and the third compression spring 78, the first sealing sliding block 73 and the movable clamping block 77 reset. Referring to Figure 7 and Figure 8 , the movable clamping block 77 can be clamped by the reset of the corrugated clamping block 791 and the fixed clamping block 79 during the reset process to clamp and wind the diaphragm on the surface of the lithium battery pack 4. When the diaphragm passes through the edge part of the collecting bin 14, the diaphragm can enter the inside of the collecting bin 14 through the opening of the collecting bin 14 to realize automatic collection of the wound diaphragm.

[0074] Meanwhile, compared with the second diaphragm unwinding mechanism 7, when the first diaphragm unwinding mechanism 5 rotates to the bottom and the second sealing sliding block 53 is in contact with the lithium battery pack 4, the movement of the second sealing sliding block 53 can drive the movable arc block 542 to move towards the first diaphragm unwinding mechanism 5, so that the return spring 543 is compressed, and the organic solvent in the liquid spray tank 541 is sprayed out through the fixed nozzle 544 towards the two sides of the lithium battery pack 4, so as to dissolve the adhesive between the aluminum foil and the lithium cobaltate on the electrode, realize the separation of the lithium cobaltate and the positive plate in the lithium battery, and facilitate the subsequent winding of the internal plate of the lithium battery pack 4, and effectively improve the efficiency of the internal disassembly and recovery of the lithium battery pack 4.

[0075] When the lithium battery pack 4 with the initial layer of diaphragm removed by the first diaphragm unwinding mechanism 5 further passes through the electrode plate unwinding mechanism 6, the electrode plate unwinding mechanism 6 rotates to the sealing pneumatic suction block 62 in contact with the negative plate inside the lithium battery pack 4, the stress generated between the sealing pneumatic suction block 62 and the negative plate drives the first compression spring 63 to compress, and the air between the sealing pneumatic suction block 62 and the electrode plate unwinding mechanism 6 is discharged through the communication air pipe 65, the arc suction groove 64 is tightly attached to the negative plate, and when the electrode plate unwinding mechanism 6 rotates to the sealing pneumatic suction block 62 after passing through the lithium battery pack 4, the sealing pneumatic suction block 62 is reset under the restoring force of the first compression spring 63, at this time the pressure between the sealing pneumatic suction block 62 and the electrode plate unwinding mechanism 6 is small, the negative plate can be sucked by the communication air pipe 65 and the arc suction groove 64, and the negative plate can be wound and collected by the rotation of the electrode plate unwinding mechanism 6, and when the negative plate passes through the collection tank 14, the wound negative plate can be scraped off and collected through the opening of the collection tank 14.

[0076] When the limiting clamp block 22 drives the lithium battery pack 4 to continue to pass through the subsequent second diaphragm unwinding mechanism 7 and electrode plate unwinding mechanism 6, the diaphragm and positive plate inside the lithium battery pack 4 can be collected according to the above-mentioned scheme.

[0077] It should be noted that the specific model and specification of the motor need to be selected and determined according to the actual specification of the device, and the specific selection calculation method adopts the existing technology in the art, so it will not be described in detail.

[0078] The above only describes the preferred embodiments of the present application and is not intended to limit the present application. For those skilled in the art, the present application can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A non-destructive disassembly device for new energy vehicle batteries, comprising a disassembly workbench (1) and a lithium battery pack (4), characterized in that: Also includes: A conveyor belt (2) for moving the lithium battery pack (4); The feeding mechanism (3) automatically arranges and continuously discharges the lithium battery packs (4) by automatically falling the lithium battery packs (4) under the action of gravity through the internal limit design of the feeding mechanism (3), and automatically cuts the lithium battery packs (4) by the cutting blade (31) provided on the side of the feeding mechanism (3); The first diaphragm winding mechanism (5) automatically clamps and rewinds the first layer of diaphragm inside the cut lithium battery pack (4) in conjunction with the rotation of the first diaphragm winding mechanism (5) when the lithium battery pack (4) moves, and automatically collects the first layer of diaphragm inside the collection bin (14) arranged behind the first diaphragm winding mechanism (5), and automatically sprays out an organic solvent to remove the adhesive on the electrode, thereby facilitating subsequent disassembly and recycling; The electrode sheet winding mechanism (6) automatically absorbs and rewinds the exposed electrode sheets inside the lithium battery pack (4) through the rotation of the electrode sheet winding mechanism (6) when the lithium battery pack (4) moves, and automatically collects and sets the electrode sheets inside the collection bin (14); The second diaphragm winding mechanism (7) cooperates with the first diaphragm winding mechanism (5) and the electrode sheet winding mechanism (6) to clamp and wind the diaphragm between the positive and negative electrode sheets inside the lithium battery pack (4), and automatically collects and places it inside the collection bin (14); The first diaphragm reeling mechanism (5) is rotatably connected to the disassembling workbench (1) via a bearing, and a portion of the first diaphragm reeling mechanism (5) extending to the outside of the disassembling workbench (1) is fixedly mounted with a first transmission gear (51), a liquid storage tank (52) is provided inside the first diaphragm reeling mechanism (5), a second sealing slider (53) is movably sleeved on the side wall of the first diaphragm reeling mechanism (5), a liquid spraying block (54) is fixedly mounted on the side wall of the second sealing slider (53), and a liquid spraying tank (541) is provided inside the liquid spraying block (54), A group of connecting pipes (55) communicating with the interior of the liquid storage tank (52) are fixedly installed inside the liquid spraying tank (541); a group of movable arc blocks (542) adapted to the outer contour of the first diaphragm rolling mechanism (5) are movably sleeved on one side of the liquid spraying tank (541) close to the first diaphragm rolling mechanism (5); a return spring (543) is fixedly installed between the movable arc block (542) and the interior of the liquid spraying tank (541); and a plurality of fixed nozzles (544) communicating with the inner cavity of the liquid spraying tank (541) are also fixedly installed on the outside of the liquid spraying block (54).

2. A non-destructive disassembly device for new energy vehicle batteries according to claim 1, characterized in that: The side wall of the disassembly workbench (1) is rotatably connected to a driving shaft (11) and a transmission shaft (12) through a bearing, and the outer side walls of the driving shaft (11) and the transmission shaft (12) are provided with a conveyor belt (2). The side wall of the disassembly workbench (1) is also fixedly installed with a driving motor (13) whose output shaft is connected to the driving shaft (11). The side wall of the disassembly workbench (1) is also fixedly installed with multiple groups of collecting bins (14). The feeding mechanism (3) includes a group of frames adapted to the lithium battery pack (4), and the bottom of the feeding mechanism (3) is not in contact with the conveyor belt. The material belts (2) are in contact with each other, and a limiting pad (34) is fixedly and symmetrically installed on the bottom of the inner side wall of the feeding mechanism (3), a sliding groove for the lithium battery pack (4) to pass through is opened on the side of the feeding mechanism (3), and a cutting blade (31) is fixedly installed on the side wall of the feeding mechanism (3), and a material guide chute (32) is fixedly installed on the side of the cutting blade (31), and a collecting trough (33) is fixedly installed on the side wall of the disassembly workbench (1), and a plurality of groups of evenly distributed limiting push blocks (21) and limiting clamping blocks (22) are fixedly installed on the surface of the conveying conveyor belt (2).

3. A non-destructive disassembly device for new energy vehicle batteries according to claim 2, characterized in that: The cutting blade (31) is designed to be inclined, the material guide chute (32) is also designed to be inclined, and the side wall of the disassembly workbench (1) is provided with a rectangular groove connected to the bottom of the material guide chute (32) and the opening of the collection groove (33).

4. A non-destructive disassembly device for new energy vehicle batteries according to claim 2, characterized in that: The limiting push blocks (21) are symmetrically designed, and the gap between the limiting push blocks (21) matches the width of the lithium battery pack (4).

5. The non-destructive disassembly device for new energy vehicle batteries according to claim 2, characterized in that: The second diaphragm reeling mechanism (7) is connected to the disassembly workbench (1) in rotation through a bearing, and a third transmission gear (71) is provided at one end of the second diaphragm reeling mechanism (7) extending to the outer side of the disassembly workbench (1). The side wall of the second diaphragm reeling mechanism (7) is provided with a plurality of sealing grooves (72) along a ring shape, and the inner side of the sealing groove (72) is provided with a first sealing slider (73) for movable position-limiting sealing. The first sealing slider (73) is provided with an inner sealing slider (74) for movable position-limiting sealing on one side extending to the inside of the sealing groove (72). A second compression spring (75) is fixedly installed between the inner sealing slider (74) and the inside of the sealing groove (72). ), a plurality of sealing chambers (76) are provided inside the first sealing slider (73), a connecting groove (761) communicating with the inner sealing slider (74) and the inside of the sealing chamber (76) is provided inside the first sealing slider (73), the internal limiting sealing of the sealing chamber (76) is movably sleeved with a movable clamping block (77), a third compression spring (78) is fixedly installed between the movable clamping block (77) and the sealing chamber (76), a fixed clamping block (79) corresponding to the movable clamping block (77) is also fixedly installed at the bottom of the first sealing slider (73), and a symmetrically designed corrugated clamping block (791) is also fixedly installed between the fixed clamping block (79) and the movable clamping block (77).

6. A non-destructive disassembly device for new energy vehicle batteries according to claim 5, characterized in that: The electrode sheet reeling mechanism (6) is rotationally connected to the disassembling workbench (1) through a bearing, and a second transmission gear (61) is fixedly installed on the portion of the electrode sheet reeling mechanism (6) extending to the outside of the disassembling workbench (1), and a sealing pneumatic suction block (62) is movably sleeved on the side wall limit seal of the electrode sheet reeling mechanism (6), and a first compression spring (63) is fixedly installed between the sealing pneumatic suction block (62) and the inside of the electrode sheet reeling mechanism (6), and a plurality of groups of arc-shaped suction grooves (64) are provided at one end of the sealing pneumatic suction block (62) extending to the outside of the electrode sheet reeling mechanism (6), and a connecting air pipe (65) is provided inside the sealing pneumatic suction block (62) to communicate with the gap between the arc-shaped suction groove (64) and the inside of the electrode sheet reeling mechanism (6).

7. A non-destructive disassembly device for new energy vehicle batteries according to claim 6, characterized in that: The sealed pneumatic suction block (62) is a flexible rubber material component.

8. The non-destructive disassembly device for new energy vehicle batteries according to claim 7, characterized in that: The portion of the transmission shaft (12) extending to the outside of the disassembly workbench (1) is provided with a driving gear (121), and the first transmission gear (51), the second transmission gear (61), the third transmission gear (71) and the driving gear (121) are connected to each other via a set of transmission belts.

9. A disassembly method using the non-destructive disassembly device for new energy vehicle batteries according to any one of claims 1 to 8, characterized in that: The following steps are involved: Place the discharged lithium battery pack (4) into the feeding mechanism (3) and arrange them; The lithium battery pack (4) is pushed to move by the conveyor belt (2); Automatically cutting the lithium battery pack (4) using a cutting blade (31); Removing the initial diaphragm inside the lithium battery pack (4) through the first diaphragm winding mechanism (5); Spraying an organic solvent into the interior of the lithium battery pack (4) through the first diaphragm winding mechanism (5) to dissolve the adhesive; The electrode sheet and the internal diaphragm inside the lithium battery pack (4) are removed by the electrode sheet rolling mechanism (6) and the second diaphragm rolling mechanism (7).

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