Pretreatment device for recycling waste lithium battery

Abstract

The invention belongs to the field of treatment devices, and particularly relates to a pretreatment device for waste lithium battery recycling, which comprises a main body, an adaptive cutting assembly, a classified dismantling assembly and a cleaning and screening device, the adaptive cutting assembly comprises a supporting frame, a protection plate, a servo motor, a connecting block, a ball screw, a ball nut and a mounting plate. The two sides of the supporting frame and the protection plate are fixedly mounted. The servo motor drives the ball screw at the output end to rotate, rotation motion is converted into linear motion of the ball nut through threaded fit of the ball screw and the ball nut, the mounting plate fixed to one side of the ball nut moves synchronously along with the ball screw, and after the mounting plate reaches a designated point position, the torque motor drives the first transmission wheel at the output end to work; a second transmission wheel is driven through a transmission belt, rotating power is transmitted to a cutting blade through a fixing shaft on the back face of the second transmission wheel, the battery is cut through the cutting blade, the cutting adjusting function is achieved, the problem that batteries of different specifications need to be recycled is solved, and the adaptability in use is improved.

Description

Technical Field

[0001] The invention relates to the field of processing devices, in particular to a preprocessing device for recycling waste lithium batteries. Background Art

[0002] Waste lithium battery recycling is the process of collecting, processing and reusing used lithium batteries. Since lithium batteries contain valuable metals such as lithium, cobalt, nickel and other harmful substances, recycling is of great significance, which can not only avoid waste of resources and environmental pollution, but also reduce safety hazards.

[0003] According to the prior art, the device has some shortcomings: When pre-processing used lithium batteries for recycling, the battery shell must be removed first. Since batteries vary in size, a single device is not versatile enough and can only process batteries of the same size. When batteries of different sizes need to be recycled, the processing device must be replaced or purchased in other sizes. This makes the operation more cumbersome and cannot be adjusted according to actual conditions.

[0004] Therefore, in view of the above problems, a pretreatment device for recycling waste lithium batteries is proposed. Summary of the invention

[0005] In order to make up for the shortcomings of the prior art and to solve the problem of recycling batteries of different specifications, the present invention proposes a pretreatment device for recycling waste lithium batteries.

[0006] The technical solution adopted by the present invention to solve its technical problems is: the pretreatment device for recycling waste lithium batteries described in the present invention includes a main body, an adaptive cutting component, a classification and removal component and a cleaning and screening device; the adaptive cutting component includes a support frame, a protective plate, a servo motor, a connecting block, a ball screw, a ball nut, and a mounting plate. Both sides of the support frame are fixedly installed with the protective plates, one side of several of the protective plates are respectively fixedly installed with the servo motors, one side of several of the protective plates are respectively fixedly installed with the connecting blocks, one side of the connecting block is provided with a groove, and is fixedly installed with the ball screw through the groove, one end of the ball screw is installed on the output end of the servo motor, the ball screw is threadedly connected to the ball nut, and the ball screw passes through the ball nut, and one side of the ball nut is fixedly installed on one side of the mounting plate.

[0007] Preferably, the adaptive cutting assembly also includes a limit slider, a limit rod, a torque motor, a first transmission wheel, a transmission belt, a second transmission wheel, a fixed shaft, and a cutting blade. The connecting block and the limit sliders in number two are fixedly installed, and two of the limit sliders respectively penetrate and are movably installed on one side of several limit rods, one side of several limit rods are fixedly installed on the mounting plate, one side of the mounting plate is fixedly installed on the torque motor, and the output end of the torque motor is fixedly installed on the first transmission wheel, the first transmission wheel is transmission-connected to the transmission belt all around, and the other side of the transmission belt is transmission-connected to the second transmission wheel, one side of the back side of the second transmission wheel is fixedly installed on one end of the fixed shaft, and the other end of the fixed shaft is fixedly installed on the cutting blade, and the fixed shaft penetrates and is movably installed on one side of the mounting plate.

[0008] Preferably, the classification and removal assembly includes a working platform, a first cylinder, a pressure plate, a CCD industrial camera, and a support plate. The top of the working platform is fixedly mounted on the first cylinder, the output end of the first cylinder is fixedly mounted on the pressure plate, one side of the top of the working platform is fixedly mounted on the CCD industrial camera, the CCD industrial camera is electrically connected to the first cylinder, and the top of the working platform is fixedly mounted on the support plate.

[0009] Preferably, the classification and removal assembly includes a second cylinder, a pushing plate and a counterweight block, the top of the working platform and the counterweight block are fixedly mounted, the top of the counterweight block and the second cylinder are fixedly mounted, and the output end of the second cylinder and the pushing plate are fixedly mounted.

[0010] Preferably, the cleaning and screening device includes a base, a pump, a gathering bucket, a spring, a cleaning bin, and a vibrator. The top of the base is fixedly mounted on the pump, the top of the base is fixedly mounted on the gathering bucket, the top of the gathering bucket is fixedly mounted on four springs, the tops of the four springs are fixedly mounted on the bottom of the cleaning bin, a plurality of sieve holes are provided on the bottom of the cleaning bin, and the top of the cleaning bin is fixedly mounted on the vibrator.

[0011] Preferably, the cleaning and screening device also includes a guide pipe, a high-pressure nozzle, and an extraction pipe. The top of the cleaning bin is fixedly installed on the high-pressure nozzle, one side of the high-pressure nozzle is fixedly installed on one end of the guide pipe, and the other end of the guide pipe is fixedly installed on the output end of the pump. The input end of the pump is fixedly installed on the extraction pipe, and the other end of the extraction pipe is fixedly installed on the gathering bucket.

[0012] Preferably, the main body includes a fixed frame, a stepper motor is fixedly installed on one side of the fixed frame, a transmission roller is fixedly installed on the output end of the stepper motor, a driven roller is movably installed on one side of the fixed frame, and a conveyor belt is movably connected between the transmission roller and the driven roller.

[0013] Preferably, the fixing frame is fixedly mounted with a plurality of fixing rods, the plurality of fixing rods respectively penetrate and are threadedly connected with threaded handles, and the plurality of threaded handles are respectively fixedly mounted with two limit plates.

[0014] The beneficial effects of the present invention are: 1. The present invention adapts to the structural design of the cutting assembly. The servo motor drives the ball screw at the output end to rotate. The ball screw cooperates with the thread of the ball nut to convert the rotational motion into the linear motion of the ball nut. The mounting plate fixed on one side of the ball nut moves synchronously. After reaching the designated point, the torque motor drives the first transmission wheel at the output end to work, and drives the second transmission wheel through the transmission belt. The rotational power is transmitted to the cutting blade through the fixed shaft on the back of the second transmission wheel. The cutting blade cuts the battery, realizing the function of adjusting the cutting, solving the problem of recycling batteries of different specifications, and improving the adaptability in use. 2. The present invention adopts the structural design of the classified dismantling components. The stepper motor drives the driving roller to rotate and cooperates with the driven roller to limit the conveyor belt to convey the battery. The cut battery is sent to the top of the support plate through the conveyor belt. After the CCD industrial camera detects that the battery is in place, the first cylinder drives the piston rod to extend and retract, driving the pressing plate to press down and cooperate with the support plate to limit the battery shell. Then the second cylinder drives the piston rod to push the pushing plate to push out the components in the battery shell. When the stroke ends, the pressing plate and the second cylinder are reset, and the subsequent battery pushes the shell to continue the operation. 3. Through the structural design of the cleaning and screening device of the present invention, the pushed battery elements move to one side along the support plate, and fall into the cleaning bin after reaching a certain position, and an alternating current is passed into the vibrator. It is acted upon by the electromagnetic force in the magnetic field, causing the vibration head to vibrate and transmit the vibration to the cleaning bin to vibrate it, and the pump extracts the washing liquid stored in the collecting bucket, allowing the water to flow out through the high-pressure nozzle, and the high-pressure nozzle is used to cooperate with the vibration of the cleaning bin to clean the battery elements. Sieve holes are provided at the bottom of the cleaning bin, and impurities attached to the battery elements can fall into the collecting bucket through the sieve holes with the washing liquid and be collected, thereby realizing the reuse of the washing liquid, and the battery elements are continuously added to the cleaning bin, and the cleaned battery elements are transported by guiding the water pressure of the high-pressure nozzle. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is an exploded schematic diagram of the overall structure of the present invention; Figure 3 It is an exploded schematic diagram of the adaptive cutting assembly structure of the present invention; Figure 4 For the present invention Figure 3 A schematic diagram of the enlarged structure in the middle; Figure 5 For the present invention Figure 3 A magnified schematic diagram of the structure B in the middle; Figure 6 This is a schematic diagram of the structure of the classification and removal assembly of the present invention; Figure 7 It is a schematic structural diagram of the cleaning and screening device of the present invention; Figure 8 It is a schematic diagram of the conveyor belt structure of the present invention.

[0017] In the figure: 1. Main body; 2. Adaptable cutting assembly; 3. Classification and removal assembly; 4. Cleaning and screening device; 11. Fixed frame; 12. Stepper motor; 13. Driving roller; 14. Driven roller; 15. Conveyor belt; 16. Fixed rod; 17. Limit plate; 18. Threaded handle; 21. Support frame; 22. Protective plate; 23. Servo motor; 24. Connecting block; 25. Ball screw; 26. Ball nut; 27. Limit slider; 28. Limit rod; 29. ​​Mounting plate; 201. Torque motor ; 202, first transmission wheel; 203, transmission belt; 204, second transmission wheel; 205, fixed shaft; 206, cutting blade; 31, working platform; 32, first cylinder; 33, pressure plate; 34, CCD industrial camera; 35, second cylinder; 36, push plate; 37, support plate; 38, counterweight; 41, base; 42, pump; 43, gathering bucket; 44, spring; 45, cleaning chamber; 46, vibrator; 47, guide pipe; 48, high-pressure nozzle; 49, extraction pipe. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0019] See also Figure 1 - Figure 5 As shown, the pretreatment device for recycling waste lithium batteries includes a main body 1, an adaptive cutting component 2, a classification and removal component 3 and a cleaning and screening device 4; the adaptive cutting component 2 includes a support frame 21, a protective plate 22, a servo motor 23, a connecting block 24, a ball screw 25, a ball nut 26, and a mounting plate 29. Both sides of the support frame 21 are fixedly mounted with the protective plate 22, one side of several protective plates 22 is respectively fixedly mounted with the servo motor 23, one side of several protective plates 22 is respectively fixedly mounted with the connecting block 24, one side of the connecting block 24 is provided with a groove, and is fixedly mounted with the ball screw 25 through the groove, one end of the ball screw 25 is installed on the output end of the servo motor 23, the ball screw 25 is threadedly connected with the ball nut 26, and the ball screw 25 passes through the ball nut 26, and one side of the ball nut 26 is fixedly mounted on one side of the mounting plate 29; During operation, the protective plate 22 is fixed by the support frame 21, and the protective plate 22 performs corresponding protective work on the interior. When the servo motor 23 is driven to work, the servo motor 23 transmits power to the ball screw 25 at the output end, so that the ball screw 25 rotates. A ball nut 26 that matches it is penetrated and threadedly matched with one side of the ball screw 25. When the ball screw 25 transmits the ball nut 26, its own rotational power is converted into linear motion of the ball nut 26, so that the ball nut 26 and the mounting plate 29 fixed on one side of the ball nut 26 are controlled to move through the rotation of the ball screw 25.

[0020] Further, the adaptive cutting assembly 2 also includes a limit slider 27, a limit rod 28, a torque motor 201, a first transmission wheel 202, a transmission belt 203, a second transmission wheel 204, a fixed shaft 205, and a cutting blade 206. The connecting block 24 and the limit sliders 27 in number are fixedly installed. The two limit sliders 27 are respectively penetrated and movably installed on one side of several limit rods 28. One side of several limit rods 28 is fixedly installed with a mounting plate 29. One side of the mounting plate 29 is fixedly installed with the torque motor 201. The output end of the torque motor 201 is fixedly installed with the first transmission wheel 202. The first transmission wheel 202 is connected to the transmission belt 203 around it. The other side of the transmission belt 203 is connected to the second transmission wheel 204. One side of the back side of the second transmission wheel 204 is fixedly installed on one end of the fixed shaft 205. The other end of the fixed shaft 205 is fixedly installed with the cutting blade 206. The fixed shaft 205 penetrates and is movably installed on one side of the mounting plate 29. During operation, when the mounting plate 29 is driven by the ball nut 26 to move, a single support by the limit slider 27 will cause unstable movement. The installation of the limit slider 27 by the mounting plate 29, when the mounting plate 29 moves, the limit slider 27 is synchronously displaced on the limit rod 28, supporting the mounting plate 29 while limiting it accordingly. During operation, the torque motor 201 is used to drive the first transmission wheel 202 to rotate, and the fixed shaft 205 is rotated under the mutual transmission cooperation of the first transmission wheel 202, the transmission belt 203 and the second transmission wheel 204, so that the fixed shaft 205 drives the cutting blade 206 to split and cut the battery.

[0021] Further, the classification and removal assembly 3 includes a working platform 31, a first cylinder 32, a pressure plate 33, a CCD industrial camera 34, and a support plate 37. The top of the working platform 31 is fixedly mounted on the first cylinder 32, the output end of the first cylinder 32 is fixedly mounted on the pressure plate 33, one side of the top of the working platform 31 is fixedly mounted on the CCD industrial camera 34, the CCD industrial camera 34 is electrically connected to the first cylinder 32, and the top of the working platform 31 is fixedly mounted on the support plate 37; During operation, when the cut batteries are conveyed to the support plate 37, the bottom support plate 37 is monitored by the CCD industrial camera 34. When the batteries are detected, an electrical signal is sent to the first cylinder 32 to drive it to work. At this time, the piston rod at the output end of the first cylinder 32 will drive the pressure plate 33 to move, and the gap between the pressure plate 33 and the support plate 37 is used to limit and fix the battery casing.

[0022] Furthermore, the classification and removal assembly 3 includes a second cylinder 35, a push plate 36 and a counterweight 38. The top of the working platform 31 is fixedly mounted to the counterweight 38, the top of the counterweight 38 is fixedly mounted to the second cylinder 35, and the output end of the second cylinder 35 is fixedly mounted to the push plate 36. During operation, when the battery housing is fixed, the second air cylinder 35 is driven to make the piston rod extend and retract, thereby driving the push plate 36 to move, so that the push plate 36 is pushed to one side to separate the battery housing from the battery element.

[0023] Further, the cleaning and screening device 4 includes a base 41, a pump 42, a gathering bucket 43, a spring 44, a cleaning bin 45, and a vibrator 46. The top of the base 41 is fixedly mounted on the pump 42, the top of the base 41 is fixedly mounted on the gathering bucket 43, the top of the gathering bucket 43 is fixedly mounted on four springs 44, the tops of the four springs 44 are fixedly mounted on the bottom of the cleaning bin 45, a plurality of sieve holes are provided on the bottom of the cleaning bin 45, and the top of the cleaning bin 45 is fixedly mounted on the vibrator 46; During operation, the battery element pushed by the pushing plate 36 falls into the inner cavity of the cleaning bin 45 under the guidance of the supporting plate 37. When the driving exciter 46 is in operation, the exciter 46 itself vibrates, and at the same time relies on its own vibration to link the cleaning bin 45. When the external force acts on the spring 44 during the vibration process, the spring 44 will undergo elastic deformation, store elastic potential energy, reduce the dynamic load of the cleaning bin 45 on the gathering bucket 43, and perform corresponding buffering.

[0024] Furthermore, the cleaning and screening device 4 also includes a guide pipe 47, a high-pressure nozzle 48, and an extraction pipe 49. The top of the cleaning bin 45 is fixedly mounted with the high-pressure nozzle 48, one side of the high-pressure nozzle 48 is fixedly mounted on one end of the guide pipe 47, the other end of the guide pipe 47 is fixedly mounted on the output end of the pump 42, the input end of the pump 42 is fixedly mounted with the extraction pipe 49, and the other end of the extraction pipe 49 is fixedly mounted with the gathering bucket 43; During operation, the extraction pipe 49 at the output end of the pump 42 is used to extract the washing liquid stored in the gathering bucket 43, so that the washing liquid is input into the inner cavity of the high-pressure nozzle 48 through the guide pipe 47 at the output end. After being pressurized by the high-pressure nozzle 48, the high-pressure washing liquid is ejected, and the battery components are cleaned in cooperation with the vibration of the cleaning chamber 45. The washing liquid will eventually flow back to the gathering bucket 43 along with impurities through the sieve holes opened in the cleaning chamber 45.

[0025] Furthermore, the main body 1 includes a fixed frame 11, a stepper motor 12 is fixedly installed on one side of the fixed frame 11, a transmission roller 13 is fixedly installed on the output end of the stepper motor 12, a driven roller 14 is movably installed on one side of the fixed frame 11, and a conveyor belt 15 is movably connected between the transmission roller 13 and the driven roller 14; During operation, the transmission roller 13 and the driven roller 14 cooperate with each other to limit the conveyor belt 15. When the stepper motor 12 is driven to work, power is output to the transmission roller 13 to cause it to rotate, so that the transmission roller 13 is in contact with the conveyor belt 15 on all sides, so that the conveyor belt 15 rotates with the transmission roller 13, which is conducive to the conveyor belt 15 driving the battery to move.

[0026] Furthermore, the fixing frame 11 is fixedly mounted with a plurality of fixing rods 16, and the plurality of fixing rods 16 are respectively penetrated and threadedly connected with threaded handles 18, and the plurality of threaded handles 18 are respectively fixedly mounted with two limit plates 17; During operation, a person rotates the threaded handle 18 and adjusts the position of the limit plate 17 by using the threaded fit between the threaded handle 18 and the fixing rod 16 , so that the limit plate 17 can be limited for batteries of different specifications.

[0027] Working principle: In embodiment 1, the ball screw 25 at the output end is rotated by driving the servo motor 23, and the ball screw 25 and the ball nut 26 are threadedly matched with each other to convert the rotational motion of the ball screw 25 into the linear motion of the ball nut 26. A mounting plate 29 is fixed on one side of the ball nut 26 to drive the mounting plate 29 to move synchronously. During the movement, the limit slider 27 fixed on the mounting plate 29 will slide on the limit rod 28, thereby increasing the stability of the mounting plate 29 during movement. When it moves to the specified point, the driving torque motor 201 makes the first transmission wheel 202 at the output end work, and the transmission belt 203 transmits the second transmission wheel 204 on one side, and the rotational power is transmitted to the cutting blade 206 through the fixed shaft 205 fixed on the back of the second transmission wheel 204, so that the cutting blade 206 cuts the battery.

[0028] In the second embodiment, the driving roller 13 at the output end is rotated by driving the stepper motor 12. The driving roller 13 cooperates with the driven roller 14 during rotation to limit the conveyor belt 15, so that the battery is transported by the conveyor belt 15. The cut battery will be transported to the top of the support plate 37 along with the conveyor belt 15. When the CCD industrial camera 34 detects that the battery moves to the specified point, the first cylinder 32 is driven to make the piston rod at the output end extend and retract in its inner wall, so that the piston rod drives the pressure plate 33 to move to the bottom, and the battery shell is limited by the gap between the pressure plate 33 and the support plate 37. Then the second cylinder 35 is driven to make the piston rod at the output end drive the push plate 36 to move to one side, so that the push plate 36 pushes the components inside the battery shell outward. After the stroke is completed, the pressure plate 33 and the second cylinder 35 return to their positions, and the battery shell is pushed by the next battery, so that the next battery can continue to operate.

[0029] In the third embodiment, the pushed battery element will be pushed to one side along with the support plate 37. When it reaches a certain level, the battery element will fall into the cleaning chamber 45. When the alternating current of the vibrator 46 is passed, it will be affected by the electromagnetic force in the magnetic field, causing the vibration head to vibrate, which is then transmitted to the cleaning chamber 45 to make it vibrate accordingly. The connection between the cleaning chamber 45 and the gathering bucket 43 is provided with a spring 44. The spring 44 acts to reduce the dynamic load of the cleaning chamber 45 on the gathering bucket 43, while ensuring the vibration stability and reliability of the cleaning chamber 45. While vibrating, the drive The dynamic pump 42 extracts the cleaning liquid stored in the collecting bucket 43, so that the water flows out through the high-pressure nozzle 48, and the battery components are cleaned by the high-pressure nozzle 48 in cooperation with the vibration of the cleaning chamber 45. The bottom of the cleaning chamber 45 is provided with sieve holes, through which the impurities attached to the battery components can fall with the cleaning liquid, and the cleaning liquid and impurities fall into the collecting bucket 43 and are collected, so that the cleaning liquid can be reused. At the same time, battery components are continuously added to the cleaning chamber 45, and the cleaned battery components are guided and transported with the water pressure of the high-pressure nozzle 48.

[0030] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments, and the above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, and these changes and improvements all fall within the scope of the present invention to be protected.

Claims

1. A pretreatment device for recycling waste lithium batteries, characterized in that: The invention comprises a main body (1), an adaptive cutting component (2), a classification and removal component (3) and a cleaning and screening device (4); the adaptive cutting component (2) comprises a support frame (21), a protective plate (22), a servo motor (23), a connecting block (24), a ball screw (25), a ball nut (26) and a mounting plate (29); both sides of the support frame (21) are fixedly mounted to the protective plate (22); one side of several protective plates (22) are respectively fixedly mounted to the servo motor (23); and several protective plates (22) are fixedly mounted to the servo motor (23). One side of the guard plate (22) is fixedly mounted on the connecting block (24), one side of the connecting block (24) is provided with a groove, and the connecting block (24) is fixedly mounted on the ball screw (25) through the groove, one end of the ball screw (25) is mounted on the output end of the servo motor (23), the ball screw (25) is threadedly connected to the ball nut (26), and the ball screw (25) passes through the ball nut (26), and one side of the ball nut (26) is fixedly mounted on one side of the mounting plate (29).

2. The pretreatment device for recycling waste lithium batteries according to claim 1, characterized in that: The adaptive cutting assembly (2) further comprises a limit slider (27), a limit rod (28), a torque motor (201), a first transmission wheel (202), a transmission belt (203), a second transmission wheel (204), a fixed shaft (205), and a cutting blade (206); the connecting block (24) and two limit sliders (27) are fixedly mounted; two limit sliders (27) respectively penetrate and are movably mounted on one side of a plurality of limit rods (28); one side of the plurality of limit rods (28) is fixedly mounted on the mounting plate (29); one side of the mounting plate (29) is fixedly mounted on the torque motor (201); an output end of the torque motor (201) is fixedly mounted on the first transmission wheel (202); The first transmission wheel (202) is transmission-connected to the transmission belt (203) on all sides, the other side of the transmission belt (203) is transmission-connected to the second transmission wheel (204), one side of the back side of the second transmission wheel (204) is fixedly mounted on one end of the fixed shaft (205), the other end of the fixed shaft (205) is fixedly mounted on the cutting blade (206), and the fixed shaft (205) passes through and is movably mounted on one side of the mounting plate (29).

3. The pretreatment device for recycling waste lithium batteries according to claim 1, characterized in that: The classification and removal component (3) comprises a working platform (31), a first cylinder (32), a pressure plate (33), a CCD industrial camera (34), and a support plate (37); the top of the working platform (31) is fixedly mounted to the first cylinder (32); the output end of the first cylinder (32) is fixedly mounted to the pressure plate (33); one side of the top of the working platform (31) is fixedly mounted to the CCD industrial camera (34); the CCD industrial camera (34) is electrically connected to the first cylinder (32); and the top of the working platform (31) is fixedly mounted to the support plate (37).

4. The pretreatment device for recycling waste lithium batteries according to claim 3 is characterized in that: The classification and removal assembly (3) comprises a second cylinder (35), a push plate (36) and a counterweight (38); the top of the working platform (31) is fixedly mounted to the counterweight (38); the top of the counterweight (38) is fixedly mounted to the second cylinder (35); and the output end of the second cylinder (35) is fixedly mounted to the push plate (36).

5. The pretreatment device for recycling waste lithium batteries according to claim 1, characterized in that: The cleaning and screening device (4) comprises a base (41), a pump (42), a collecting bucket (43), a spring (44), a cleaning chamber (45), and an exciter (46). The top of the base (41) is fixedly mounted to the pump (42), the top of the base (41) is fixedly mounted to the collecting bucket (43), the top of the collecting bucket (43) is fixedly mounted to four springs (44), the tops of the four springs (44) are fixedly mounted to the bottom of the cleaning chamber (45), a plurality of sieve holes are provided at the bottom of the cleaning chamber (45), and the top of the cleaning chamber (45) is fixedly mounted to the exciter (46).

6. The pretreatment device for recycling waste lithium batteries according to claim 5, characterized in that: The cleaning and screening device (4) further comprises a guide pipe (47), a high-pressure nozzle (48), and an extraction pipe (49); the top of the cleaning chamber (45) and the high-pressure nozzle (48) are fixedly mounted; one side of the high-pressure nozzle (48) is fixedly mounted on one end of the guide pipe (47); the other end of the guide pipe (47) is fixedly mounted on the output end of the pump (42); the input end of the pump (42) and the extraction pipe (49) are fixedly mounted; and the other end of the extraction pipe (49) and the gathering bucket (43) are fixedly mounted.

7. The pretreatment device for recycling waste lithium batteries according to claim 1, characterized in that: The main body (1) comprises a fixed frame (11), a stepper motor (12) is fixedly mounted on one side of the fixed frame (11), a transmission roller (13) is fixedly mounted on the output end of the stepper motor (12), a driven roller (14) is movably mounted on one side of the fixed frame (11), and a conveyor belt (15) is movably connected between the transmission roller (13) and the driven roller (14).

8. The pretreatment device for recycling waste lithium batteries according to claim 7, characterized in that: The fixing frame (11) is fixedly mounted with a plurality of fixing rods (16), the plurality of fixing rods (16) respectively penetrate and are threadedly connected with a threaded handle (18), and the plurality of threaded handles (18) are respectively fixedly mounted with two limit plates (17).

Images