Disassembling and recycling mechanism for waste lithium battery

Abstract

The invention provides a waste lithium battery disassembling and recycling mechanism which comprises a conveying table used for conveying waste lithium batteries; the clamping assemblies are arranged on the two sides of the conveying table and used for fixing the waste lithium batteries; and the cutting assembly is arranged above the clamping assembly and used for cutting the lithium battery steel shell. The invention belongs to the technical field of battery recovery. Through cooperation of the cutting assembly, the first piston and the second piston, input of hydraulic oil is automatically controlled when an ultrasonic cutter cuts a lithium battery steel shell, so that the ultrasonic cutter automatically feeds and cuts the lithium battery steel shell, feeding is automatically stopped after the lithium battery steel shell is cut through, and accidents caused by cutting of a battery cell are avoided.

Description

Technical Field

[0001] This disclosure pertains to the technical field of battery recycling, specifically relating to a dismantling and recycling facility for waste lithium batteries. Background Technology

[0002] The disposal of used lithium batteries is a crucial issue involving environmental protection, resource recycling, and safety risks. With the widespread adoption of new energy vehicles and electronic devices, the number of used lithium batteries is surging, making it essential to handle them scientifically, safely, and efficiently.

[0003] In existing technologies, when recycling used batteries, hydraulic shears are used to cut open the steel casing of the battery pack and remove the modules. However, the thickness of the steel casing of lithium batteries is not a uniform standard. Its design varies significantly depending on the battery type, size, application scenario, and safety requirements. This means that when dismantling used lithium batteries, the cutting depth of the cutter needs to be set according to the model and style to avoid accidentally cutting the cells inside the steel casing and causing danger. This increases the difficulty of recycling lithium batteries. Summary of the Invention

[0004] Therefore, the technical problem to be solved by the present invention is to provide a dismantling and recycling mechanism for waste lithium batteries, which can automatically control the feed amount of the cutting tool and automatically stop feeding after cutting through the steel shell of the lithium battery, thereby avoiding the cutting tool from damaging the battery cell and causing an accident, thus ensuring the safety of lithium battery dismantling and recycling.

[0005] To address the above problems, this invention provides a dismantling and recycling mechanism for waste lithium batteries, comprising: Conveyor platform, used for transporting used lithium batteries; Clamping components, located on both sides of the conveyor, are used to secure used lithium batteries. A cutting assembly, positioned above the clamping assembly, is used to cut the steel casing of a lithium battery. The cutting assembly includes a hydraulic cylinder for supplying hydraulic oil, and a mounting groove is provided at the bottom of the hydraulic cylinder. The sleeve is slidably connected in the mounting groove, and the rear side of the sleeve is connected to the oil cylinder through the oil return pipe; A slide rod is slidably connected inside a sleeve. An oil hole is provided on the side of the slide rod closest to the sleeve. The side of the oil hole away from the sleeve is connected to the oil cylinder through an oil inlet pipe. A piston for controlling the oil input is slidably installed inside the oil hole. The slide table and the sliding block are fixedly connected to the side of the slide rod extending out of the sleeve. A slide groove is provided on the side of the slide table away from the sleeve. A sliding block is slidably connected in the slide groove. Multiple round holes are spaced apart on the outer periphery of the oil hole in the slide groove. The round holes extend into the slide rod. A piston is slidably connected to the side of the round holes near piston one. Piston two is connected to piston one through a connecting unit. An ultrasonic cutter is fixedly connected to a sliding block; The feed assembly, which is located between the clamping unit and the cutting assembly, is used to control the feed of the cutting assembly.

[0006] Furthermore, both sides of the outer wall of the piston are connected with sealing rings that contact the inner wall of the oil hole. A groove is provided on the side of the piston away from the sleeve, and an oil outlet groove communicating with the groove is provided on the outer periphery of the piston near the sleeve.

[0007] Furthermore, a through hole is provided in the middle of the piston two. A one-way valve is fixedly connected to the side of the through hole near the sleeve. A cover plate for blocking the through hole is hinged to the side of the through hole away from the sleeve. A torsion spring for opening the cover plate is provided at the hinge position between the cover plate and the through hole.

[0008] Furthermore, the connecting unit includes a connecting rod and a supporting spring. A through groove is provided between the oil hole and the round hole. The connecting rod is slidably connected in the through groove. The supporting spring is fixedly connected to the side of the connecting rod near the sleeve.

[0009] Furthermore, a pressure chamber is provided on the side of the slide rod near the circular hole, and a piston three is slidably connected to the side of the pressure chamber away from the sleeve. A pressure spring is fixedly connected between the side of the piston three away from the sleeve and the pressure chamber. The side of the pressure chamber near the sleeve communicates with the circular hole and a pressure valve is fixedly connected at the communication point.

[0010] Furthermore, the pressure chamber is located on the side of the piston away from the sleeve and has a return hole communicating with the circular hole. A solenoid valve is fixedly connected inside the return hole, and a pressure sensor for activating the solenoid valve is fixedly connected on the side of the support spring away from the connecting rod.

[0011] Furthermore, the conveyor platform mainly consists of conveyor belt one, conveyor belt two, and a rotary table. Conveyor belt one is connected to both sides of the rotary table, which are used for the input and output of waste lithium batteries, respectively. Conveyor belt two is installed on the turntable at the top of the rotary table.

[0012] Furthermore, the clamping assembly includes a base, a hydraulic cylinder, and a stop block. Two bases are provided, which are respectively located on both sides of the rotary table. A hydraulic cylinder is fixedly connected to the top of the base, and the output shaft of the hydraulic cylinder is fixedly connected to a stop block for abutting the waste lithium battery.

[0013] Furthermore, the feeding assembly includes an X-axis linear unit, a Y-axis linear unit, and a Z-axis linear unit. The Z-axis linear unit is mounted on the top of the base and is used to push the hydraulic cylinder to move up and down. The X-axis linear unit is located at the bottom of the hydraulic cylinder and is used to control the hydraulic cylinder to move along the length of the conveyor table. The Y-axis linear unit is connected to the hydraulic cylinder near the mounting groove and is used to control the feeding of the sleeve.

[0014] In summary, the present invention has at least one of the following beneficial technical effects: 1. The dismantling and recycling mechanism for waste lithium batteries, through the setting of the cutting components, the cooperation of piston one and piston two, enables the ultrasonic cutter to automatically control the input of hydraulic oil when cutting the steel shell of the lithium battery, thereby allowing the ultrasonic cutter to automatically feed and cut the steel shell of the lithium battery, and automatically shutting off the feed after cutting through the steel shell of the lithium battery to avoid damaging the battery cell and causing an accident. 2. The dismantling and recycling mechanism for waste lithium batteries, through the setting of a pressure chamber, piston three, and compression spring, can ensure that piston two moves normally when the ultrasonic cutter is under pressure, while the setting of a pressure valve can prevent hydraulic oil from passing through the pressure valve when the ultrasonic cutter is cutting, ensuring that the ultrasonic cutter will not retract when it moves laterally to cut the lithium battery steel shell, thereby ensuring the cutting efficiency of the lithium battery steel shell. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the structure of a dismantling and recycling mechanism for waste lithium batteries according to the present invention.

[0017] Figure 2 This is a schematic diagram of the state of a waste lithium battery dismantling and recycling mechanism according to the present invention during the dismantling of waste lithium batteries.

[0018] Figure 3 This is a schematic diagram of the dismantling and recycling mechanism for waste lithium batteries according to the present invention, showing the state during the dismantling process of waste lithium batteries.

[0019] Figure 4 This is a schematic diagram of the state of a waste lithium battery after the steel casing of a waste lithium battery has been cut, according to the present invention.

[0020] Figure 5 This is a schematic diagram illustrating the state of adjusting the cutting position of a lithium battery in a dismantling and recycling mechanism for waste lithium batteries according to the present invention.

[0021] Figure 6 This is a schematic diagram of the cutting component in a dismantling and recycling mechanism for waste lithium batteries according to the present invention.

[0022] Figure 7 This is a schematic diagram of the state of the cutting component during the feeding process in a dismantling and recycling mechanism for waste lithium batteries according to the present invention.

[0023] Figure 8 This is a schematic diagram showing the state of an ultrasonic cutter cutting into the steel casing of a waste lithium battery in a dismantling and recycling mechanism according to the present invention.

[0024] Figure 9 This is a schematic diagram showing the state of piston one, piston two, and piston three when the ultrasonic cutter comes into contact with the waste lithium battery in a waste lithium battery dismantling and recycling mechanism of the present invention.

[0025] Figure 10 This is a schematic diagram showing the state of piston one, piston two, and piston three when the ultrasonic cutter comes into contact with the waste lithium battery in a waste lithium battery dismantling and recycling mechanism of the present invention.

[0026] Figure 11 This is a schematic diagram showing the state of piston one, piston two, and piston three when the ultrasonic cutter cuts through the steel shell of a waste lithium battery in a waste lithium battery dismantling and recycling mechanism of the present invention.

[0027] Figure 12 This is a schematic diagram showing the state of piston one, piston two, and piston three after the ultrasonic cutter cuts through the steel shell of a waste lithium battery in a waste lithium battery dismantling and recycling mechanism of the present invention.

[0028] Figure 13 This is a perspective view of the slide bar and slide table in a dismantling and recycling mechanism for waste lithium batteries according to the present invention.

[0029] The reference numerals in the attached figures are as follows: 1. Conveyor table; 101. Conveyor belt one; 102. Conveyor belt two; 103. Rotary table; 2. Clamping assembly; 201. Base; 202. Hydraulic cylinder; 203. Abutment block; 3. Cutting assembly; 301. Hydraulic cylinder; 302. Sleeve; 303. Slide rod; 304. Slide table; 305. Sliding block; 306. Ultrasonic cutter; 4. Feeding assembly; 401. X-axis linear unit; 402. Y-axis linear unit; 403. Z-axis linear unit; 5. Mounting slot; 6. Return 7. Oil pipe; 8. Oil hole; 9. Oil inlet pipe; 10. Piston 1; 11. Slide groove; 12. Round hole; 13. Piston 2; 14. Connecting unit; 15. Connecting rod; 16. Support spring; 17. Sealing ring; 18. Groove; 19. Oil outlet groove; 20. Through hole; 21. Check valve; 22. Cover plate; 23. Through groove; 24. Pressure chamber; 25. Piston 3; 26. Pressure spring; 27. Pressure valve; 28. Return hole; 29. ​​Solenoid valve; 20. Pressure sensor. Detailed Implementation

[0030] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0031] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0032] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0033] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0034] See also Figure 1 - Figure 13 As shown in the embodiment of the present invention, a dismantling and recycling mechanism for waste lithium batteries is provided, comprising: Conveyor 1 is used to transport used lithium batteries. Clamping assembly 2, which is set on both sides of conveyor table 1, is used to fix waste lithium batteries; The cutting assembly 3 is positioned above the clamping assembly 2 and is used to cut the steel shell of the lithium battery. The cutting assembly 3 includes a hydraulic cylinder 301 for supplying hydraulic oil, and the bottom of the hydraulic cylinder 301 is provided with an installation groove 5. Sleeve 302 is slidably connected in mounting groove 5, and the rear side of sleeve 302 is connected to oil cylinder 301 through oil return pipe 6; The slide rod 303 is slidably connected inside the sleeve 302. An oil hole 7 is provided on the side of the slide rod 303 near the sleeve 302. The side of the oil hole 7 away from the sleeve 302 is connected to the oil cylinder 301 through an oil inlet pipe 8. A piston 9 for controlling the oil input is slidably installed inside the oil hole 7. The slide table 304 and the sliding block 305 are fixedly connected to the side of the slide rod 303 that extends out of the sleeve 302. A slide groove 10 is provided on the side of the slide table 304 away from the sleeve 302. The sliding block 305 is slidably connected in the slide groove 10. Multiple round holes 11 are provided at intervals on the outer periphery of the oil hole 7 in the slide groove 10. The round holes 11 extend into the slide rod 303. A piston 12 is slidably connected on the side of the round hole 11 near the piston 9. The piston 12 and the piston 9 are connected by a connecting unit 13. The ultrasonic cutter 306 is fixedly connected to the sliding block 305; The feed assembly 4 is located between the clamping unit and the cutting assembly 3 and is used to control the feed of the cutting assembly 3.

[0035] In this embodiment, observation Figure 1 It can be seen that the conveyor table 1 can be used to transport waste lithium batteries. By providing clamping components 2 on both sides of the conveyor table 1, the transported lithium batteries can be fixed in place. Then, the feed component 4 above the clamping components 2 drives the cutting component 3... Figure 2 - Figure 4 The process flow shows the lithium battery being moved closer to the waste lithium battery, and finally the steel casing of the waste lithium battery is cut by the cutting component 3. After the steel casing of the waste lithium battery is cut, the lithium battery can be transported out of the cutting area by the conveyor 1. Finally, the steel casing is opened to remove the battery cells inside the waste lithium battery, completing the recycling and dismantling of the waste lithium battery.

[0036] Because the thickness of the steel casing of lithium batteries is not a uniform standard, its design varies significantly depending on the battery type, size, application scenario, and safety requirements. This means that when dismantling used lithium batteries, the cutting depth of the cutter needs to be set according to the model and style to avoid accidentally cutting the battery cell inside the steel casing and causing danger. This increases the difficulty of recycling lithium batteries.

[0037] Therefore, combining Figure 6 and Figure 9It can be observed that the cutting assembly 3 includes a hydraulic cylinder 301. A mounting groove 5 is provided at the bottom of the hydraulic cylinder 301. A sleeve 302 is slidably connected within the mounting groove 5. A sliding rod 303 is slidably connected to the side of the sleeve 302 closest to the conveyor table 1, creating a space between the sliding rod 303 and the sleeve 302 for storing hydraulic oil. A return oil pipe 6 is then connected to the rear side of the sleeve 302. The end of the return oil pipe 6 furthest from the sleeve 302 is connected to the hydraulic cylinder 301. Simultaneously, a space is formed between the sliding rod 303 and the cylinder 302. An oil hole 7 is provided on the side near the sleeve 302. The side of the oil hole 7 away from the sleeve 302 is connected to the oil cylinder 301 via an oil inlet pipe 8. This allows hydraulic oil in the oil cylinder 301 to be pumped into the oil inlet pipe 8 and then transported to the space between the sleeve 302 and the slide rod 303. This hydraulic oil drives the slide rod 303 to extend out of the sleeve 302. When the hydraulic oil is returned to the oil cylinder 301 via the return pipe 6, the slide rod 303 retracts. Therefore, the slide table 304, which is fixedly connected to the side of the slide rod 303 extending out of the sleeve 302, will move closer to or away from the waste lithium battery under the drive of the hydraulic oil. This will bring the ultrasonic cutter 306 closer to or away from the waste lithium battery to perform the cutting operation.

[0038] Further observation at this time Figure 9 It can be observed that a groove 10 is provided on the side of the slide table 304 away from the sleeve 302. A sliding block 305 is slidably connected in the groove 10, while the ultrasonic cutter 306 is fixedly connected to the sliding block 305. When the ultrasonic cutter 306 comes into contact with the steel shell of the waste lithium battery, the pressure of the contact will cause the sliding block 305 to slide in the groove 10. At the same time, a piston 9 for controlling the flow of hydraulic oil is slidably connected in the oil hole 7. Multiple circular holes 11 are spaced apart on the outer periphery of the oil hole 7 in the groove 10. The circular holes 11 extend into the slide rod 303. A piston 12 is slidably connected in the circular holes 11. The piston 12 is connected to the piston 9 through a connecting unit 13.

[0039] Therefore, when the sliding block 305 is pressed and slides in the groove 10, it will squeeze the hydraulic oil in the groove 10 into the round hole 11. At this time, the hydraulic oil will push the piston 12 to move in the round hole 11, thereby driving the piston 9 to slide in the oil hole 7 through the connecting unit 13. This allows the hydraulic oil in the cylinder 301 to enter between the slide rod 303 and the sleeve 302, which is used to push the ultrasonic cutter 306 to continue to move forward, thereby ensuring that the ultrasonic cutter 306 can stably cut through the lithium battery steel shell.

[0040] To ensure that the ultrasonic cutter 306 stops feeding immediately after cutting through the steel shell, thus preventing an accident caused by the ultrasonic cutter 306 cutting the battery cell, we should look at... Figure 10It can be observed that a through hole 17 is formed in the middle of piston 12. A one-way valve 18 is fixedly connected to the side of the through hole 17 near the sleeve 302. A cover plate 19 for blocking the through hole 17 is hinged to the side of the through hole 17 away from the sleeve 302. A torsion spring for opening the cover plate 19 is provided at the hinge position between the cover plate 19 and the through hole 17. Then, combined with... Figure 9 It can be seen that the connecting unit 13 includes a connecting rod 1301 and a support spring 1302. A through groove 20 is provided between the oil hole 7 and the round hole 11. The connecting rod 1301 is slidably connected in the through groove 20. The support spring 1302 is fixedly connected to the side of the connecting rod 1301 near the sleeve 302.

[0041] At this moment, when the ultrasonic cutter 306 initially contacts the lithium battery steel shell, hydraulic oil enters the round hole 11 and applies pressure to the cover plate 19, thereby sealing the through hole 17. At this time, hydraulic oil cannot enter the through hole 17, thus causing the piston 12 to move under the action of oil pressure. Figure 9 - Figure 10 The movement of piston 9, as shown in the motion diagram, ensures stable feeding of the ultrasonic cutter 306.

[0042] When the ultrasonic cutter 306 cuts through the lithium battery steel casing, the ultrasonic cutter 306 suddenly loses pressure, and at the same time, the sliding block 305 also loses pressure. Therefore, the pressure applied to the cover plate 19 disappears, and the cover plate 19 then... Figure 11 The state is shown to open under the force of the torsion spring, allowing hydraulic oil to enter the through hole 17 normally. Then, under the push of the support spring 1302 of the connecting unit 13, the connecting rod 1301 is reset, thereby resetting the piston 12. This allows the hydraulic oil to pass through the one-way valve 18 and move to the side of the round hole 11 away from the slide groove 10. This prevents the hydraulic oil from flowing back and causing the sliding block 305 to reset when the piston 12 resets. When the piston 12 resets, the piston 9 will also... Figure 12 The status indicator will reset and block the oil hole 7, preventing hydraulic oil from continuing to flow into the space between the slide bar 303 and the sleeve 302. This effectively prevents the ultrasonic cutter 306 from cutting through the steel shell of the lithium battery and continuing to feed, thereby effectively improving the safety of lithium battery disassembly and preventing disasters.

[0043] To ensure the stable operation of the hydraulic system, electrically controlled check valves are required on the inlet pipe 8 and the return pipe 6 to control the unidirectional flow of hydraulic oil. Furthermore, to ensure that the cover plate 19 remains open when the piston 12 resets, the pressure of the torsion spring must be greater than the elastic force of the support spring 1302.

[0044] In a further preferred embodiment of the invention, such as Figure 10As shown, both sides of the outer wall of piston 9 are connected to sealing rings 14 that contact the inner wall of oil hole 7. This ensures the sealing between piston 9 and oil hole 7, preventing hydraulic oil from flowing through the assembly gap and ensuring the operational stability of the hydraulic system.

[0045] By providing a groove 15 on the side of piston 9 away from sleeve 302, and an oil outlet groove 16 communicating with the groove 15 on the outer periphery of piston 9 near sleeve 302, piston 9 can be made to... Figure 7 When the oil hole 7 is extended as shown in the status diagram, hydraulic oil can enter between the slide rod 303 and the sleeve 302 through the groove 15 and the oil outlet groove 16, causing the slide rod 303 to extend out of the sleeve 302 and ensuring the stable feeding of the ultrasonic cutter 306.

[0046] In a further preferred embodiment of the present invention, since the ultrasonic cutter 306 needs to move laterally when cutting the lithium battery steel shell, in order to ensure the stability of the cutting, the ultrasonic cutter 306 is made as follows: Figure 8 As shown in the diagram, the cutting surface is arc-shaped. When the ultrasonic cutter 306 cuts into the lithium battery steel shell, the cutting surface can still maintain contact with the lithium battery steel shell, ensuring cutting efficiency.

[0047] However, due to the curved cutting surface, the ultrasonic cutter 306 will retract under resistance when moving laterally, thus affecting the cutting effect and preventing the steel shell from being effectively cut. Therefore, observation is necessary. Figure 9 It can be seen that a pressure chamber 21 is provided on the side of the slide rod 303 near the round hole 11. A piston 22 is slidably connected to the side of the pressure chamber 21 away from the sleeve 302. A pressure spring 23 is fixedly connected between the side of the piston 22 away from the sleeve 302 and the pressure chamber 21. The side of the pressure chamber 21 near the sleeve 302 communicates with the round hole 11 and a pressure valve 24 is fixedly connected at the communication point.

[0048] At this time, when the ultrasonic cutter 306 comes into contact with the lithium battery steel shell, the pressure on piston 2 12 increases sharply. When the pressure exceeds the threshold of pressure valve 24, the hydraulic oil on the side of piston 2 12 away from slide 10 will pass through pressure valve 24 and enter pressure chamber 21 to ensure that piston 2 12 can move normally.

[0049] When the ultrasonic cutter 306 cuts the lithium battery steel shell and retracts under pressure, this pressure is the pressure experienced during cutting and the torque dispersed by the arc-shaped cutting surface. This pressure is much smaller than the pressure of the ultrasonic cutter 306 directly contacting the lithium battery steel shell, so the pressure valve 24 cannot be opened. At this time, the hydraulic oil on the side of piston 2 12 away from the slide groove 10 cannot pass through the pressure valve 24. At the same time, the hydraulic oil is restricted from flowing by the one-way valve 18. At this time, the hydraulic oil will provide support for piston 2 12, preventing piston 2 12 from moving, thereby preventing the sliding block 305 from moving in the slide groove 10, which can ensure the cutting stability of the ultrasonic cutter 306.

[0050] In a further preferred embodiment of the present invention, the hydraulic oil entering the pressure chamber 21 reduces the amount of hydraulic oil in the slide groove 10, causing the sliding block 305 to fail to reset after cutting the lithium battery steel shell, which affects subsequent lithium battery steel shell cutting operations. Therefore, observation... Figure 9 and Figure 13 It can be seen that the pressure chamber 21 is located on the side of the piston 2 12 away from the sleeve 302 and has a return hole 25 communicating with the round hole 11. A solenoid valve 26 is fixedly connected in the return hole 25. A pressure sensor 27 for activating the solenoid valve 26 is fixedly connected on the side of the support spring 1302 away from the connecting rod 1301.

[0051] When the ultrasonic cutter 306 moves to cut the lithium battery steel shell, the pressure on the ultrasonic cutter 306 will cause the piston 12 to be pressed. This pressure is transmitted to the support spring 1302 through the connecting rod 1301, causing the support spring 1302 to be slightly stressed, thereby causing the pressure sensor 27 to send a signal based on the change in the pressure.

[0052] After the ultrasonic cutter 306 completes the cutting of the lithium battery steel shell, the ultrasonic cutter 306 is no longer under force. Therefore, the pressure sensor 27 experiences pressure changes, so it sends a second signal to the controller. At this time, the controller will control the solenoid valve 26 to open. Then, under the push of the pressure spring 23, the piston 32 squeezes the hydraulic oil, causing the hydraulic oil to flow back into the round hole 11 through the solenoid valve 26, thereby resetting the sliding block 305 and ensuring the continuous and stable use of the cutting assembly 3.

[0053] The controller mentioned above is a PLC programmable controller, a common technical means for controlling electrical equipment in the mechanical field, so it will not be described in detail.

[0054] In a further preferred embodiment of the present invention, since waste lithium battery modules are typically rectangular, and the cutting component 3 can only cut a single face at a time, even with two sets of cutting components 3, it is impossible to complete the cutting of the lithium battery steel casing in one go. Figure 5As shown, the conveyor 1 mainly consists of conveyor belt 101, conveyor belt 2 102 and rotary table 103. Both sides of the rotary table 103 are connected to conveyor belt 101, which are used for the input and output of waste lithium batteries, respectively. Conveyor belt 2 102 is installed on the turntable at the top of the rotary table 103.

[0055] Once one side of the lithium battery steel shell is cut, the rotating table 103 can rotate the lithium battery to switch the side of the lithium battery steel shell to be cut, thus ensuring the cutting effect of the lithium battery steel shell.

[0056] In a further preferred embodiment of the invention, such as Figure 2 As shown, the clamping assembly 2 includes a base 201, a hydraulic cylinder 202, and a stop block 203. There are two bases 201, which are respectively located on both sides of the rotary table 103. The top of the base 201 is fixedly connected to the hydraulic cylinder 202. The output shaft of the hydraulic cylinder 202 is fixedly connected to the stop block 203 for abutting the waste lithium battery. When the waste lithium battery is transported to the rotary table 103 by the conveyor belt 101, the hydraulic cylinder 202 drives the stop block 203 to approach and clamp the waste lithium battery, ensuring the stability of subsequent cutting operations.

[0057] In a further preferred embodiment of the present invention, since lithium batteries vary in length, width, and height depending on their model and style, observation is required to ensure the proper cutting of the lithium battery steel casing. Figure 2 It can be seen that the feeding assembly 4 includes an X-axis linear unit 401, a Y-axis linear unit 402, and a Z-axis linear unit 403. The Z-axis linear unit 403 is installed on the top of the base 201 and is used to push the cylinder 301 to move up and down. The X-axis linear unit 401 is located at the bottom of the cylinder 301 and is used to control the cylinder 301 to move along the length of the conveyor table 1. The Y-axis linear unit 402 is connected to the cylinder 301 near the mounting groove 5 and is used to control the feeding of the sleeve 302, which can ensure the cutting effect of the lithium battery.

[0058] Among them, the X-axis linear unit 401, Y-axis linear unit 402 and Z-axis linear unit 403 mentioned above are all driving structures that can drive objects to move linearly, such as hydraulic cylinders, motor-driven gears moving laterally on racks, and telescopic motors. They will not be described in detail here.

[0059] In addition, to ensure the stability of linear movement, auxiliary structures such as sliders, grooves, and guide rails can be used to further ensure the stability of linear movement.

[0060] The implementation principle of the above embodiment is as follows: the waste lithium battery is transported to the first conveyor belt 101 by the robotic arm. Then, the waste lithium battery will enter the rotary table 103 under the transport of the conveyor belt 101. In order to ensure that the waste lithium battery can stably enter the effective cutting range of the cutting component 3, the rotary table 103 is equipped with a second conveyor belt 102 to adjust the position of the waste lithium battery.

[0061] When the waste lithium battery enters the cutting range, the hydraulic cylinder 202 is controlled by the controller to run, so that the abutment 203 comes into contact with the lithium battery to complete the fixation.

[0062] After the lithium battery is fixed, the controller will control the feed component 4 to move the cutting component 3, so that the ultrasonic cutter 306 of the cutting component 3 moves to the appropriate cutting position. Finally, the sleeve 302 can be pushed by the Y-axis linear unit 402 to feed, so that the ultrasonic cutter 306 contacts the lithium battery steel shell.

[0063] After the ultrasonic cutter 306 contacts the lithium battery steel shell, the pressure on the ultrasonic cutter 306 causes the piston 12 to move within the circular hole 11. At this time, the pressure sensor 27 sends a signal to the controller, indicating that the ultrasonic cutter 306 has made contact with the steel shell. As the piston 12 continues to move, the piston 9 will also move synchronously until the oil hole 7 opens. The oil in the oil inlet pipe 8 begins to flow into the space between the sleeve 302 and the slide rod 303. Therefore, the flow sensor located in the oil inlet pipe 8 sends a signal to the controller. After receiving the signal, the controller will stop the operation of the Y-axis linear unit 402. At this time, the ultrasonic cutter 306 will continue to feed under the drive of hydraulic oil, and will automatically stop feeding after cutting through the lithium battery steel shell to avoid damaging the battery cell and causing an accident.

[0064] When the ultrasonic cutter 306 cuts through the lithium battery steel shell, the ultrasonic cutter 306 loses pressure, causing the pressure sensor 27 to drop sharply. At this time, the pressure sensor 27 will send a second signal to the controller, causing the controller to drive the X-axis linear unit 401 to drive the ultrasonic cutter 306 to move laterally to cut the lithium battery steel shell.

[0065] During the cutting process, the ultrasonic cutter 306 is subjected to cutting force, causing a change in the pressure on the pressure sensor 27. At this time, the pressure sensor 27 sends a signal to the controller for the third time, indicating that cutting of the lithium battery steel shell has begun. Finally, after the cutting is completed, the ultrasonic cutter 306 is no longer subjected to force, causing a fourth change in the pressure on the pressure sensor 27, which sends a fourth signal to the controller, indicating that the cutting is complete. This causes the controller to drive the feed assembly 4 to reset and simultaneously open the solenoid valve 26 to reset the cutting assembly 3, so as to facilitate the next cutting step.

[0066] Finally, the cut lithium batteries can be transported and unloaded via conveyor belt 101, completing the dismantling of waste lithium batteries.

[0067] It will be readily understood by those skilled in the art that the aforementioned advantageous methods can be freely combined and superimposed without conflict.

[0068] The above are merely preferred embodiments of the present invention and are 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 within the protection scope of the present invention. The above are merely preferred embodiments of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present invention, and these improvements and modifications should also be considered within the protection scope of the present invention.

Claims

1. A dismantling and recycling mechanism for waste lithium batteries, characterized in that, include: Conveyor (1), used for conveying waste lithium batteries; Clamping assembly (2), which is set on both sides of conveyor (1), is used to fix waste lithium batteries; The cutting assembly (3) is positioned above the clamping assembly (2) and is used to cut the steel shell of the lithium battery. The cutting assembly (3) includes a hydraulic cylinder (301) for supplying hydraulic oil. The bottom of the hydraulic cylinder (301) is provided with an installation groove (5). The sleeve (302) is slidably connected in the mounting groove (5), and the rear side of the sleeve (302) is connected to the oil cylinder (301) through the oil return pipe (6); The slide rod (303) is slidably connected inside the sleeve (302). An oil hole (7) is provided on the side of the slide rod (303) close to the sleeve (302). The side of the oil hole (7) away from the sleeve (302) is connected to the oil cylinder (301) through the oil inlet pipe (8). A piston (9) for controlling the oil input is slidably installed inside the oil hole (7). The slide (304) and the sliding block (305) are fixedly connected to the side of the slide rod (303) extending out of the sleeve (302). A slide groove (10) is provided on the side of the slide (304) away from the sleeve (302). The sliding block (305) is slidably connected in the slide groove (10). Multiple round holes (11) are spaced apart on the outer periphery of the oil hole (7) in the slide groove (10). The round holes (11) extend into the slide rod (303). A piston (12) is slidably connected on the side of the round hole (11) near the piston one (9). The piston two (12) is connected to the piston one (9) through the connecting unit (13). An ultrasonic cutter (306) is fixedly connected to a sliding block (305); The feed assembly (4) is located between the clamping unit and the cutting assembly (3) and is used to control the feed of the cutting assembly (3).

2. The dismantling and recycling mechanism for waste lithium batteries according to claim 1, characterized in that, Both sides of the outer wall of the piston (9) are connected to sealing rings (14) that contact the inner wall of the oil hole (7). A groove (15) is provided on the side of the piston (9) away from the sleeve (302). An oil outlet groove (16) communicating with the groove (15) is provided on the outer periphery of the piston (9) near the sleeve (302).

3. The dismantling and recycling mechanism for waste lithium batteries according to claim 2, characterized in that, The piston (12) has a through hole (17) in the middle. A one-way valve (18) is fixedly connected to the side of the through hole (17) near the sleeve (302). A cover plate (19) for blocking the through hole (17) is hinged to the side of the through hole (17) away from the sleeve (302). A torsion spring for opening the cover plate (19) is provided at the hinge position between the cover plate (19) and the through hole (17).

4. The dismantling and recycling mechanism for waste lithium batteries according to claim 3, characterized in that, The connecting unit (13) includes a connecting rod (1301) and a support spring (1302). A through groove (20) is provided between the oil hole (7) and the round hole (11). The connecting rod (1301) is slidably connected in the through groove (20). The support spring (1302) is fixedly connected to the side of the connecting rod (1301) near the sleeve (302).

5. The dismantling and recycling mechanism for waste lithium batteries according to claim 4, characterized in that, The slide rod (303) has a pressure chamber (21) on the side near the round hole (11). A piston (22) is slidably connected to the side of the pressure chamber (21) away from the sleeve (302). A pressure spring (23) is fixedly connected between the side of the piston (22) away from the sleeve (302) and the pressure chamber (21). The side of the pressure chamber (21) near the sleeve (302) communicates with the round hole (11) and a pressure valve (24) is fixedly connected at the communication point.

6. The dismantling and recycling mechanism for waste lithium batteries according to claim 5, characterized in that, The pressure chamber (21) is located on the side of the piston (12) away from the sleeve (302) and has a return hole (25) communicating with the round hole (11). A solenoid valve (26) is fixedly connected in the return hole (25). A pressure sensor (27) for activating the solenoid valve (26) is fixedly connected on the side of the support spring (1302) away from the connecting rod (1301).

7. The dismantling and recycling mechanism for waste lithium batteries according to claim 1, characterized in that, The conveyor platform (1) is mainly composed of conveyor belt one (101), conveyor belt two (102) and rotary table (103). Both sides of the rotary table (103) are connected to conveyor belt one (101), which are used for the input and output of waste lithium batteries respectively. Conveyor belt two (102) is installed on the turntable at the top of the rotary table (103).

8. The dismantling and recycling mechanism for waste lithium batteries according to claim 7, characterized in that, The clamping assembly (2) includes a base (201), a hydraulic cylinder (202), and a stop block (203). There are two bases (201), which are respectively located on both sides of the rotary table (103). The top of the base (201) is fixedly connected to the hydraulic cylinder (202), and the output shaft of the hydraulic cylinder (202) is fixedly connected to the stop block (203) for abutting the waste lithium battery.

9. The dismantling and recycling mechanism for waste lithium batteries according to claim 8, characterized in that, The feeding assembly (4) includes an X-axis linear unit (401), a Y-axis linear unit (402), and a Z-axis linear unit (403). The Z-axis linear unit (403) is installed on the top of the base (201) and is used to push the cylinder (301) to move up and down. The X-axis linear unit (401) is located at the bottom of the cylinder (301) and is used to control the cylinder (301) to move along the length of the conveyor (1). The Y-axis linear unit (402) is connected to the cylinder (301) near the mounting groove (5) and is used to control the feeding of the sleeve (302).

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