Pretreatment device for recycling waste lithium batteries

Abstract

The invention relates to the field of lithium battery recovery, in particular to a pretreatment device for waste lithium battery recovery, comprising a base, a mounting table fixedly mounted on the base, a mounting plate and a sliding seat fixed on the mounting plate; the feeding assembly is fixedly installed on the sliding base and comprises a refrigeration box with material openings in the two ends and a flow dividing unit installed in the refrigeration box. The processing assembly is fixedly mounted on the mounting plate and comprises an air cylinder, a horizontal rod and a drilling part, the horizontal rod is fixed to the output end of the air cylinder, a guide frame is fixedly mounted on the sliding seat, the drilling part is slidably mounted in the guide frame, and a threaded rod is connected between the drilling part and the horizontal rod. And the frozen lithium battery is conveyed to the position below the drilling part, an air cylinder drives a horizontal rod to make the drilling part make contact with the lithium battery, the positive electrode and the negative electrode in the lithium battery after drilling form a short-circuit loop through the penetrating hole, and forced discharging is started.

Description

Technical Field

[0001] The invention relates to the technical field of lithium battery recycling, in particular to a pretreatment device for recycling waste lithium batteries. Background Art

[0002] Lithium battery is a primary battery that uses lithium metal or lithium alloy as negative electrode material and non-aqueous electrolyte solution. It is different from rechargeable lithium-ion battery and lithium-ion polymer battery. Lithium battery contains cobalt, lithium, copper and plastic, which are all valuable resources and have high recycling value. Therefore, scientific and effective treatment of waste lithium batteries not only has significant environmental benefits, but also has good economic benefits. In order to alleviate the increasingly serious resource shortage and environmental pollution problems caused by rapid economic development, it has become a global consensus to realize the recycling of all components of waste lithium batteries.

[0003] When recycling lithium batteries, they usually need to be crushed and then screened to recycle the components. However, since there is still residual power in the lithium battery before crushing, direct crushing is prone to spontaneous combustion or explosion of the lithium battery. Therefore, the lithium battery needs to be discharged. The remaining power of the lithium battery is mostly processed by immersing the lithium battery in an electrolyte to connect the positive and negative poles of the lithium battery to achieve continuous discharge, but the speed is slow; there is another way to pierce the lithium battery and then place it in the electrolyte to achieve the purpose of discharge. However, in actual application, there is a diaphragm between the positive and negative electrodes inside the lithium battery. The main function of the diaphragm is to prevent the positive and negative electrodes from contacting each other and allow ions to be transferred through the diaphragm. Once the diaphragm is damaged by foreign matter, if the foreign matter is made of metal, it will cause the positive and negative electrodes to short-circuit through the metal foreign matter; if the foreign matter is made of non-metallic material, the diaphragm will be destroyed during the puncture process. Since the electrodes inside the lithium-ion battery are copper foil and aluminum foil, the copper foil, aluminum foil, etc. in the battery will be stuck on the puncture needle after puncture, causing the lithium battery to be unable to fall. Summary of the invention

[0004] In view of the above problems existing in the prior art, the present invention is proposed.

[0005] Therefore, the present invention aims to solve the technical problem that after the lithium battery is punctured, the copper foil, aluminum foil, etc. in the battery will be stuck on the puncture needle, resulting in the lithium battery being unable to fall off.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions: a pretreatment device for recycling waste lithium batteries, comprising:

[0007] A base having a guide portion;

[0008] A mounting platform, fixedly mounted on the base, comprising a mounting plate and a slide fixed on the mounting plate, for conveying lithium batteries;

[0009] A feeding assembly is fixedly mounted on the slide, comprising a refrigeration box with material ports at both ends and a flow dividing unit installed in the refrigeration box, wherein the flow dividing unit divides the interior of the refrigeration box into a plurality of storage spaces;

[0010] The processing assembly is fixedly mounted on the mounting plate, and includes a cylinder, a horizontal rod and a drilling part. The horizontal rod is fixed to the output end of the cylinder, a guide frame is fixedly mounted on the slide seat, the drilling part is slidably mounted in the guide frame and a threaded rod is connected between the horizontal rod and the drilling part. When the cylinder drives the horizontal rod to descend, the drilling part slides in the guide frame and abuts against the lithium battery.

[0011] As a preferred solution of the pretreatment device for recycling waste lithium batteries of the present invention, a threaded sleeve is rotatably mounted on the horizontal rod, and the threaded rod is threadedly connected in the threaded sleeve.

[0012] As a preferred solution of the pretreatment device for recycling waste lithium batteries of the present invention, the drilling part includes a hollow shell with an opening on one side, a connecting plate and a drilling rod, the connecting plate is located on the side of the hollow shell close to the horizontal rod, a movable part is connected between the connecting plate and the hollow shell, the drilling rod is rotatably connected to the connecting plate and extends into the hollow shell, a motor is fixedly mounted on the connecting plate, and the output end of the motor is connected to the drilling rod.

[0013] As a preferred solution of the pretreatment device for recycling waste lithium batteries of the present invention, a first slider is slidably installed in the hollow shell, a side of the first slider close to the drilling rod has an inclined surface, a first spring is fixedly connected between the first slider and the inner wall of the hollow shell, a roller is installed at the movable end of the movable part, and the roller is against the inclined surface of the first slider.

[0014] As a preferred solution of the pretreatment device for recycling waste lithium batteries of the present invention, the guide frame has a slide groove, and a second sliding block adapted to the slide groove is fixedly mounted on the outer edge surface of the hollow shell.

[0015] As a preferred solution of the pretreatment device for recycling waste lithium batteries of the present invention, a push plate is slidably installed in the slide seat, and the push plate is also slidably installed on the guide part, and a connecting arm is rotatably installed between the horizontal rod and the push plate.

[0016] As a preferred embodiment of the pretreatment device for recycling waste lithium batteries of the present invention, the diverter unit comprises a first diverter plate and a second diverter plate, a connecting shaft is fixedly mounted on the first diverter plate, an end of the connecting shaft away from the first diverter plate passes through the refrigeration box and is fixedly mounted with a ratchet, a tooth groove matching the ratchet is provided on the push plate, a sleeve is fixedly mounted on the second diverter plate, the sleeve is coaxially mounted on the connecting shaft, a first bevel gear is fixedly mounted on both the sleeve and the connecting shaft, a second bevel gear is rotatably mounted on the inner wall of the refrigeration box, and the second bevel gear is meshed and connected with the first bevel gears on both sides.

[0017] As a preferred solution of the pretreatment device for recycling waste lithium batteries of the present invention, the first diverter plate and the second diverter plate are both provided with storage slots for placing lithium batteries.

[0018] As a preferred embodiment of the pretreatment device for recycling waste lithium batteries of the present invention, a baffle is fixedly installed on the inner wall of the refrigeration box, and a space for accommodating the passage of lithium batteries is left between the baffle and the first and second diverter plates.

[0019] As a preferred solution of the pretreatment device for recycling waste lithium batteries of the present invention, the slide seat includes a fixed part and a movable part, a second spring is fixedly connected between the movable part and the fixed part, the movable part can move relatively along the fixed part, a wedge block is fixedly installed on the movable part, a pushing member is fixedly installed on the horizontal rod, and the pushing member has an inclined surface and can abut against the wedge block.

[0020] The beneficial effects of the present invention are as follows: waste lithium batteries are put into a refrigeration box through a material port manually or by a robot for step-by-step freezing treatment, and between each cooling stage, the battery is kept at the current temperature for a period of time, so that the battery has enough time to adapt to the new temperature, thereby reducing the possibility of thermal runaway and the rupture of the lithium battery. The drilling and discharge operation of the waste lithium batteries is then realized by rotating the drilling rod. At the same time, when the drilling rod moves downward, the roller installed on the movable part will contact the inclined surface of the first slider and squeeze the first slider to slide outward along the inner bottom surface of the hollow shell until the drilling rod finishes drilling and resets. The copper foil and aluminum foil in the battery will not be stuck on the drilling rod due to the reset force of the first slider, thereby preventing the battery from being unable to detach. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. 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 creative work. Among them:

[0022] Figure 1 The overall structure of the pretreatment device for recycling lithium waste batteries according to an embodiment of the present invention is shown in FIG. Figure 1 ;

[0023] Figure 2 The overall structure of the pretreatment device for recycling lithium waste batteries according to an embodiment of the present invention is shown in FIG. Figure 2 ;

[0024] Figure 3 An exploded schematic diagram of a second slide structure of a pretreatment device for recycling waste lithium batteries according to an embodiment of the present invention;

[0025] Figure 4 A schematic diagram of the internal structure of a refrigeration box of a pretreatment device for recycling waste lithium batteries according to an embodiment of the present invention;

[0026] Figure 5 A schematic diagram of the partial structure of a shunt unit of a pretreatment device for recycling waste lithium batteries according to an embodiment of the present invention;

[0027] Figure 6 A schematic diagram of the structure of a pusher of a pretreatment device for recycling waste lithium batteries according to an embodiment of the present invention;

[0028] Figure 7 A schematic diagram of the internal structure of the drilling part of a pretreatment device for recycling waste lithium batteries according to an embodiment of the present invention.

[0029] Reference numerals: 100, base; 110, guide portion; 200, mounting platform; 210, mounting plate; 220, slide seat; 221, fixed portion; 222, moving portion; 223, second spring; 224, wedge block; 230, guide frame; 231, slide groove; 300, loading assembly; 310, refrigeration box; 311, material port; 320, diverter unit; 321, first diverter plate; 322, second diverter plate; 301, fixed disk; 302, rotating disk; 323, connecting shaft; 324, ratchet; 325, sleeve; 326, first bevel gear; 327, second bevel gear; 328, storage slot; 330, baffle; 400, handling assembly; 410, cylinder; 420, horizontal rod; 430, drilling portion; 431, hollow shell; 432, connecting plate; 433, drilling rod; 434, movable part; 401, first sleeve; 402, first slide rod; 403, flange; 404, third spring; 435, motor; 436, first slider; 437, first spring; 438, roller; 439, second slider; 440, threaded rod; 450, threaded sleeve; 460, push plate; 461, tooth groove; 470, connecting arm; 480, push member; 481, second sleeve; 482, second slide rod; 483, fourth spring. DETAILED DESCRIPTION

[0030] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0031] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0032] Secondly, the present invention is described in detail with reference to schematic diagrams. When describing the embodiments of the present invention in detail, for the sake of convenience, the cross-sectional diagrams showing the device structure will not be partially enlarged according to the general scale, and the schematic diagrams are only examples, which should not limit the scope of protection of the present invention. In addition, in actual production, the three-dimensional dimensions of length, width and depth should be included.

[0033] Furthermore, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0034] Example 1, reference Figure 1-Figure 7This embodiment provides a pre-processing device for recycling waste lithium batteries, including a base 100, a mounting table 200, a loading component 300 and a processing component 400.

[0035] The base 100 has a guide portion 110 .

[0036] The mounting platform 200 is fixedly mounted on the base 100 , and includes a mounting plate 210 and a slide seat 220 fixed on the mounting plate 210 , and is used for transporting lithium batteries.

[0037] The loading assembly 300 is fixedly mounted on the slide 220 and is responsible for feeding the waste lithium batteries into the pretreatment device. It includes a refrigeration box 310 with material ports 311 at both ends and a diversion unit 320 installed in the refrigeration box 310. The diversion unit 320 divides the interior of the refrigeration box 310 into multiple storage spaces.

[0038] Preferably, the refrigeration box 310 can be designed to have multiple independent cooling zones, and each zone can be set to a different temperature as needed. This can be achieved by using multiple evaporators or installing baffles in a large cooling chamber. The baffles can help control the flow of cold air, thereby achieving the effect of different temperatures in different zones. The refrigeration box 310 is made of thermal insulation material to keep the internal temperature stable and prevent the external temperature from affecting the temperature inside the box. Its working principle is already a prior art and will not be described in detail here.

[0039] In the pretreatment process of waste lithium batteries, one use scenario of the refrigeration box 310 is:

[0040] 1. Battery adaptability test: Conduct small-scale tests before large-scale freezing to determine the best freezing conditions;

[0041] 2. Initial cooling stage: Freeze the used lithium batteries in batches, set the initial temperature between 0℃ and -20℃, and monitor the battery temperature to ensure that it is stable within the set temperature range;

[0042] 3. Final temperature stage: When the battery temperature stabilizes, gradually lower the temperature to -40°C to -60°C, continuously monitor the battery temperature, and adjust the cooling rate as needed;

[0043] 4. Temperature maintenance: Between each cooling stage, keep the battery at the current temperature for a period of time to allow the battery enough time to adapt to the new temperature and reduce the possibility of thermal runaway and rupture of the lithium battery.

[0044] The processing assembly 400 is fixedly installed on the mounting plate 210, and includes a cylinder 410, a horizontal rod 420 and a drilling portion 430. The horizontal rod 420 is fixed to the output end of the cylinder 410, and a guide frame 230 is fixedly installed on the slide 220. The drilling portion 430 is slidably installed in the guide frame 230 and a threaded rod 440 is connected between the drilling portion 430 and the horizontal rod 420. When the cylinder 410 drives the horizontal rod 420 to descend, the drilling portion 430 slides in the guide frame 230 and abuts against the lithium battery, puncturing the lithium battery to achieve safe discharge.

[0045] Reference Figure 6 Preferably, a threaded sleeve 450 is rotatably mounted on the horizontal rod 420 , and the threaded rod 440 is threadedly connected in the threaded sleeve 450 .

[0046] The threaded rod 440 is fixedly connected to the drilling portion 430, and the drilling portion 430 is slidably installed in the guide frame 230, which constrains the rotation degree of the threaded rod 440. Therefore, the position of the threaded rod 440 in the threaded sleeve 450 can be changed by rotating the threaded sleeve 450, and then the distance between the outer edge surface of the lithium battery and the drilling portion 430 can be changed according to the diameter of different types of lithium batteries, thereby effectively ensuring the working performance of the drilling portion 430.

[0047] In the pretreatment device for recycling waste lithium batteries of the present embodiment, the waste lithium batteries are placed into a refrigerating box 310 through a material port 311. The temperature in the refrigerating box 310 is adjusted as needed to lower the temperature of the waste lithium batteries so as to reduce the risk of thermal explosion during discharge. The frozen lithium batteries are transported to the bottom of the drilling part 430. The cylinder 410 drives the horizontal rod 420 to move downward. The horizontal rod 420 makes the drilling part 430 slide on the guide frame 230 through the threaded rod 440, so that it contacts the lithium battery and performs the drilling operation. After drilling, the positive and negative electrodes inside the lithium battery form a short circuit through the perforation, and forced discharge begins. The discharged lithium battery can be sent to the next processing unit.

[0048] Each structure is described in detail below with reference to the accompanying drawings.

[0049] Reference Figure 7 Specifically, the drilling part 430 includes a hollow shell 431 with an opening on one side, a connecting disk 432 and a drilling rod 433. The connecting disk 432 is located on the side of the hollow shell 431 close to the horizontal rod 420. A movable part 434 is connected between the connecting disk 432 and the hollow shell 431. The drilling rod 433 is rotatably connected to the connecting disk 432 and extends into the hollow shell 431. A motor 435 is fixedly installed on the connecting disk 432, and the output end of the motor 435 is connected to the drilling rod 433.

[0050] Preferably, one end of the drilling rod 433 used for drilling is made of a non-metallic material such as a slender needle of ceramic or special plastic, which can be withdrawn immediately after penetrating the diaphragm, thereby achieving a fast and safe discharge process.

[0051] A first slider 436 is slidably installed in the hollow shell 431. The first slider 436 has an inclined surface on one side close to the drilling rod 433. A first spring 437 is fixedly connected between the first slider 436 and the inner wall of the hollow shell 431. A roller 438 is installed at the movable end of the movable part 434, and the roller 438 is against the inclined surface of the first slider 436.

[0052] Preferably, the movable part 434 includes a first sliding sleeve 401 fixedly mounted on the hollow shell 431, and a first sliding rod 402 fixedly mounted on the connecting plate 432, the first sliding rod 402 is connected to the first sliding sleeve 401 in relative sliding manner, the part of the first sliding rod 402 located in the first sliding sleeve 401 has a flange 403, and a third spring 404 is movably mounted on the first sliding rod 402, and the two ends of the third spring 404 are respectively abutted against the flange 403 and the inner bottom surface of the first sliding sleeve 401.

[0053] The guide frame 230 has a slide groove 231 , and a second sliding block 439 adapted to the slide groove 231 is fixedly mounted on the outer edge surface of the hollow shell 431 .

[0054] Through the arrangement of the above structure, when the cylinder 410 drives the horizontal rod 420 to move downward, the hollow shell 431 follows and descends through the threaded rod 440, so that it contacts the lithium battery. As the cylinder 410 is continuously pressed downward, on the one hand, the connecting plate 432 exposes the drilling rod 433 from the hollow shell 431 through the movable part 434. After the motor 435 is started, its output end drives the drilling rod 433 to rotate to realize the drilling and discharge operation of the waste lithium battery; on the other hand, when the drilling rod 433 moves downward, the roller 438 installed on the movable part 434 will contact the inclined surface of the first slider 436 and squeeze the first slider 436 to slide outward along the inner bottom surface of the hollow shell 431 until the drilling rod 433 finishes drilling and resets. The copper foil and aluminum foil in the battery will not be stuck on the drilling rod 433 due to the reset force of the first slider 436, thereby preventing the battery from being unable to detach.

[0055] Reference Figure 1 and Figure 2 Specifically, a push plate 460 is slidably installed in the slide seat 220, and the push plate 460 is also slidably installed on the guide portion 110, and a connecting arm 470 is rotatably installed between the horizontal rod 420 and the push plate 460.

[0056] Preferably, the push plate 460 contacts the bottom surface of the refrigeration box 310 to seal the material opening 311 below the refrigeration box 310 .

[0057] Through the arrangement of the above structure, after the cylinder 410 is started, its output end drives the horizontal rod 420 to move downward, and the horizontal rod 420 transmits the force to the push plate 460 through the connecting arm 470. The connecting arm 470 changes the direction of the force by rotating, thereby converting the vertical movement of the horizontal rod 420 into the horizontal movement of the push plate 460, so that the push plate 460 is on the outside of the slide 220 during the drilling process. As the cylinder 410 is reset, the connecting arm 470 drives the push plate 404 to move on the slide 220, and pushes the frozen batteries in the refrigeration box 310 to the bottom of the drilling part 430, thereby achieving the purpose of automatic loading.

[0058] Reference Figure 4 and Figure 5 Specifically, the diverter unit 320 includes a first diverter plate 321 and a second diverter plate 322, a connecting shaft 323 is fixedly installed on the first diverter plate 321, one end of the connecting shaft 323 away from the first diverter plate 321 passes through the refrigeration box 310 and is fixedly installed with a ratchet 324, a push plate 460 is provided with a tooth groove 461 adapted to the ratchet 324, a sleeve 325 is fixedly installed on the second diverter plate 322, the sleeve 325 is coaxially installed on the connecting shaft 323, a first bevel gear 326 is fixedly installed on the sleeve 325 and the connecting shaft 323, a second bevel gear 327 is rotatably installed on the inner wall of the refrigeration box 310, and the second bevel gear 327 is meshed and connected with the first bevel gears 326 on both sides.

[0059] Preferably, both the first diverter plate 321 and the second diverter plate 322 are provided with a storage slot 328 for placing lithium batteries.

[0060] It should be noted that the first diverter plate 321 and the second diverter plate 322 both include a fixed disk 301 and a rotating disk 302. The fixed disk 301 is fixedly installed in the refrigeration box 310 and has a gap for batteries to fall. The rotating disk 302 is rotatably installed on the fixed disk 301 to drive the batteries to move to the gap.

[0061] Preferably, a baffle plate 330 is fixedly installed on the inner wall of the refrigeration box 310, and a space for accommodating the passage of lithium batteries is reserved between the baffle plate 330 and the first diverter plate 321 and the second diverter plate 322.

[0062] There are two baffles 330 symmetrically arranged, and the lithium battery passes between the two baffles 330 .

[0063] Through the above-mentioned structural setting, when the push plate 460 is pushed forward, its tooth groove 461 will mesh with the ratchet 324, driving the connecting shaft 323 to rotate. The rotation of the connecting shaft 323 drives the rotating disks of the first diverter plate 321 and the second diverter plate 322 to rotate. Since the first diverter plate 321 and the second diverter plate 322 both have storage slots 328, and their rotating disks 302 can rotate, when the rotating disk 302 rotates, the lithium battery will be pushed out from the notch on the fixed disk 301. At the same time, since the first bevel gear 326 is meshed with the second bevel gear 327, a coordinated action is formed to ensure that the lithium battery can move in a predetermined direction and sequence. Finally, the baffle 330 exists to ensure that the lithium battery can pass in an orderly manner and prevent the lithium battery from being confused or blocked during the movement.

[0064] Reference Figure 3 Specifically, the slide 220 includes a fixed portion 221 and a movable portion 222, a second spring 223 is fixedly connected between the movable portion 222 and the fixed portion 221, the movable portion 222 can move relatively along the fixed portion 221, a wedge block 224 is fixedly installed on the movable portion 222, and a pushing member 480 is fixedly installed on the horizontal rod 420, the pushing member 480 has an inclined surface and can abut against the wedge block 224.

[0065] Preferably, the pusher 480 includes a second sliding sleeve 481 fixedly mounted on the horizontal rod 420 , a second sliding rod 482 is slidably mounted in the second sliding sleeve 481 , and a fourth spring 483 is fixedly connected between one surface of the second sliding rod 482 located in the second sliding sleeve 481 and the top surface of the second sliding sleeve 481 .

[0066] Through the arrangement of the above structure, when the cylinder 410 is started, the horizontal rod 420 moves downward, and the pushing member 480 moves downward accordingly and contacts the inclined surface of the wedge block 224. As the pushing member 480 continues to move downward, it squeezes the wedge block 224, causing the movable portion 222 to slide along the fixed portion 221, thereby clamping and fixing the battery. When the movable portion 222 slides under the action of the pushing member 480, the second spring 223 is compressed. When the pushing member 480 no longer applies force to the wedge block 224, the second spring 223 releases the stored energy, causing the movable portion 222 to return to its original position along the fixed portion 221.

[0067] In summary, the working principle of a pretreatment device for recycling waste lithium batteries is as follows:

[0068] First, the waste lithium batteries are put into the refrigeration box 310 through the material port 311 by manual or mechanical means for step-by-step freezing treatment, and between each cooling stage, the batteries are kept at the current temperature for a period of time to allow the batteries to have enough time to adapt to the new temperature, thereby reducing the possibility of thermal runaway and rupture of the lithium batteries;

[0069] Next, the cylinder 410 is started, and its output end drives the horizontal rod 420 to move downward. The horizontal rod 420 transmits force to the push plate 460 through the connecting arm 470. The connecting arm 470 changes the direction of the force by rotating, thereby converting the vertical movement of the horizontal rod 420 into the horizontal movement of the push plate 460, so that the push plate 460 moves on the slide 220, and pushes the frozen battery located at the bottom of the refrigeration box 310 to the bottom of the guide frame 230;

[0070] Then, the motor 435 is started to drive the drilling rod 433 to rotate to realize the drilling and discharging operation of the waste lithium battery; on the other hand, when the drilling rod 433 moves downward, the roller 438 installed on the movable part 434 will contact the inclined surface of the first slider 436 and squeeze the first slider 436 to slide outward along the inner bottom surface of the hollow shell 431 until the drilling rod 433 finishes drilling and resets. The copper foil and aluminum foil in the battery will not be stuck on the drilling rod 433 due to the reset force of the first slider 436;

[0071] Finally, the cylinder 410 is reset, and its output end drives the horizontal rod 420 to move upward. The horizontal rod 420 transmits force to the push plate 460 through the connecting arm 470. The tooth groove 461 on the push plate 460 engages with the ratchet 324, so that the connecting shaft 323 will only rotate when the push plate 460 moves away from the cylinder 410. The rotation of the connecting shaft 323 drives the first bevel gear 326 to rotate, and the second bevel gear 327f engaged therewith also rotates, thereby driving the first bevel gear 326 on the other side to rotate, so that the first diverter plate 321 and the second diverter plate 322 perform coaxial reverse rotation motion, and the baffle plate 330 spreads the lithium batteries flat to achieve orderly unloading and prevent the lithium batteries from being confused or blocked during movement. When the cylinder 410 is started again, the push plate 460 can push the batteries at the bottom of the refrigeration box 310 to the bottom of the guide frame 230 again to achieve continuous operation.

[0072] Importantly, it should be noted that the construction and arrangement of the present application shown in a plurality of different exemplary embodiments are only exemplary. Although only a few embodiments are described in detail in this disclosure, it should be readily understood by those who refer to this disclosure that many modifications are possible (e.g., the size, scale, structure, shape and proportion of various elements, and parameter values ​​(e.g., temperature, pressure, etc.), installation arrangement, use of materials, color, directional changes, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in the application. For example, the element shown as integrally formed can be composed of multiple parts or elements, the position of the element can be inverted or otherwise changed, and the nature or number or position of the discrete element can be changed or changed. Therefore, all such modifications are intended to be included in the scope of the present invention. The order or sequence of any process or method steps can be changed or reordered according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure of performing the function described herein, and is not only structurally equivalent but also equivalent structure. Without departing from the scope of the present invention, other replacements, modifications, changes and omissions can be made in the design, operating conditions and arrangement of the exemplary embodiments. Therefore, the invention is not limited to a specific embodiment, but extends to numerous modifications still falling within the scope of the appended claims.

[0073] Additionally, in order to provide a concise description of exemplary embodiments, all features of an actual embodiment (ie, those features that are not relevant to the best mode presently contemplated for carrying out the invention or those that are not relevant to implementing the invention) may not be described.

[0074] It will be appreciated that in the development of any actual implementation, as in any engineering or design project, numerous implementation-specific decisions may be made. Such a development effort may be complex and time-consuming, but will be a routine task of design, fabrication, and production for those of ordinary skill having the benefit of this disclosure without undue experimentation.

[0075] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A pretreatment device for recycling waste lithium batteries, characterized in that: include, A base (100) having a guide portion (110); A mounting platform (200) is fixedly mounted on the base (100), comprising a mounting plate (210) and a slide seat (220) fixed on the mounting plate (210), and is used for transporting lithium batteries; A loading assembly (300) is fixedly mounted on the slide seat (220), comprising a refrigeration box (310) having material ports (311) at both ends and a flow distribution unit (320) installed in the refrigeration box (310), wherein the flow distribution unit (320) divides the interior of the refrigeration box (310) into a plurality of storage spaces; The processing assembly (400) is fixedly mounted on the mounting plate (210), and comprises a cylinder (410), a horizontal rod (420) and a drilling portion (430); the horizontal rod (420) is fixed to the output end of the cylinder (410); a guide frame (230) is fixedly mounted on the slide seat (220); the drilling portion (430) is slidably mounted in the guide frame (230) and a threaded rod (440) is connected between the horizontal rod (420); when the cylinder (410) drives the horizontal rod (420) to descend, the drilling portion (430) slides in the guide frame (230) and abuts against the lithium battery.

2. The pretreatment device for recycling waste lithium batteries according to claim 1, characterized in that: A threaded sleeve (450) is rotatably mounted on the horizontal rod (420), and the threaded rod (440) is threadedly connected in the threaded sleeve (450).

3. The pretreatment device for recycling waste lithium batteries according to claim 2 is characterized in that: The drilling portion (430) comprises a hollow shell (431) with an opening on one side, a connecting disk (432) and a drilling rod (433); the connecting disk (432) is located on a side of the hollow shell (431) close to the horizontal rod (420); a movable part (434) is connected between the connecting disk (432) and the hollow shell (431); the drilling rod (433) is rotatably connected to the connecting disk (432) and extends into the hollow shell (431); a motor (435) is fixedly mounted on the connecting disk (432); and an output end of the motor (435) is connected to the drilling rod (433).

4. The pretreatment device for recycling waste lithium batteries according to claim 3 is characterized in that: A first sliding block (436) is slidably installed in the hollow shell (431), and a side of the first sliding block (436) close to the drilling rod (433) has an inclined surface. A first spring (437) is fixedly connected between the first sliding block (436) and the inner wall of the hollow shell (431). A roller (438) is installed at the movable end of the movable part (434), and the roller (438) abuts against the inclined surface of the first sliding block (436).

5. The pretreatment device for recycling waste lithium batteries according to claim 4 is characterized in that: The guide frame (230) has a slide groove (231), and a second sliding block (439) adapted to the slide groove (231) is fixedly mounted on the outer edge surface of the hollow shell (431).

6. The pretreatment device for recycling waste lithium batteries according to claim 5, characterized in that: A push plate (460) is slidably mounted in the slide seat (220), and the push plate (460) is simultaneously slidably mounted on the guide portion (110). A connecting arm (470) is rotatably mounted between the horizontal rod (420) and the push plate (460).

7. The pretreatment device for recycling waste lithium batteries according to claim 6 is characterized in that: The flow dividing unit (320) comprises a first flow dividing plate (321) and a second flow dividing plate (322); a connecting shaft (323) is fixedly mounted on the first flow dividing plate (321); an end of the connecting shaft (323) away from the first flow dividing plate (321) passes through the refrigerating box (310) and is fixedly mounted with a ratchet (324); a tooth groove (461) matched with the ratchet (324) is provided on the push plate (460); a sleeve (325) is fixedly mounted on the second flow dividing plate (322); the sleeve (325) is coaxially mounted on the connecting shaft (323); a first bevel gear (326) is fixedly mounted on the sleeve (325) and the connecting shaft (323); a second bevel gear (327) is rotatably mounted on the inner wall of the refrigerating box (310); the second bevel gear (327) is meshedly connected with the first bevel gears (326) on both sides.

8. The pretreatment device for recycling waste lithium batteries according to claim 7, characterized in that: The first diverter plate (321) and the second diverter plate (322) are both provided with a storage slot (328) for placing lithium batteries.

9. The pretreatment device for recycling waste lithium batteries according to claim 8, characterized in that: A baffle plate (330) is fixedly mounted on the inner wall of the refrigeration box (310), and a space capable of accommodating the passage of lithium batteries is reserved between the baffle plate (330) and the first diverter plate (321) and the second diverter plate (322).

10. The pretreatment device for recycling waste lithium batteries according to any one of claims 1 to 9, characterized in that: The slide seat (220) comprises a fixed portion (221) and a movable portion (222); a second spring (223) is fixedly connected between the movable portion (222) and the fixed portion (221); the movable portion (222) can move relatively along the fixed portion (221); a wedge block (224) is fixedly mounted on the movable portion (222); a pushing member (480) is fixedly mounted on the horizontal rod (420); the pushing member (480) has an inclined surface and can abut against the wedge block (224).

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