Battery cell nail pulling equipment

Abstract

The utility model discloses battery cell nail pulling equipment which comprises a conveying device, a positioning device and a nail pulling device, the conveying device is used for conveying battery cell materials. And the positioning device is used for fixing the battery cell material at the nail pulling station. The nail pulling device is arranged above the nail pulling station and the steel nail collecting container in a striding mode. The nail pulling device comprises a nail pulling mechanism and a transferring mechanism. The transferring mechanism is used for driving the nail pulling mechanism to move between the nail pulling station and the steel nail collecting container. The nail pulling mechanism comprises a nail pulling base, an opening and closing driving component and two nail pulling clamping pieces. The two nail pulling clamping pieces are provided with clamping edges protruding oppositely, and the clamping edges extend front and back. The opening and closing driving component is used for driving the two nail pulling clamping pieces to be close to each other or away from each other. According to the electrical core nail pulling equipment, the multiple steel nails arranged in an arrayed mode are pulled out at a time through the clamping edges, and the nail pulling efficiency is high.

Description

Technical Field

[0001] The utility model relates to the technical field of battery recycling equipment, and particularly relates to a core nail pulling device. Background Art

[0002] In the production process of lithium batteries, after the injection of electrolyte and before formation, it is necessary to evacuate the air and block the injection hole with a rubber nail. During the formation process, the rubber nail needs to be pulled out, and after formation, it is necessary to evacuate the air again and insert the rubber nail. Therefore, inserting and pulling out the rubber nail is an essential process in the production of lithium batteries. In the prior art, manufacturers generally use rubber nail pulling devices to pull out the nails.

[0003] With the rapid development of the new energy industry, the demand for the recycling of waste power batteries is also increasing day by day. At present, the market mainly collects the cathode materials in waste power batteries, and it is necessary to discharge the batteries before recycling.

[0004] One of the current mainstream discharge methods is to soak the battery in salt water for discharge. After the battery is punctured, salt water is used for discharge to consume the electrolyte. The discharge effect of the punctured battery is better, and leaving the steel nail in the battery during the discharge process can accelerate the discharge speed of the battery. After the puncture discharge is completed, it is also necessary to pull out and collect the steel nail in the battery to avoid the steel nail in the battery damaging the blade during the process of crushing and decomposing the battery, reducing the crushing effect, and hindering the separation of the positive and negative electrode materials.

[0005] Compared with the rubber nail pulling process in the battery production process, the number of puncture steel nails in battery discharge is large, often multi-row and multi-point puncture. The existing nail pulling devices have low applicability and nail pulling efficiency, and there is a large room for improvement. Moreover, the fastening degree of the steel nail puncture is high, and a large nail pulling force is required, which places high requirements on the structure of the nail pulling device. Summary of the Utility Model

[0006] The purpose of the utility model is to provide a core nail pulling device to solve one or more technical problems existing in the prior art, and at least provide a beneficial option or create conditions.

[0007] The technical solution adopted to solve the above technical problems:

[0008] A core nail pulling device includes: a frame, a conveying device, a positioning device, and a nail pulling device;

[0009] The conveying device, the positioning device, and the nail pulling device are all installed on the frame; the conveying device has a conveying surface for supporting and conveying the core, the conveying surface extends in the front-rear direction, the conveying surface has a nail pulling station, the positioning device is used to fix the core at the nail pulling station, and a steel nail collection container is provided beside the nail pulling station;

[0010] The nail pulling device is disposed across the nail pulling station and above the steel nail collection container. The nail pulling device includes a nail pulling mechanism and a transfer mechanism. The transfer mechanism is used to drive the nail pulling mechanism to move between the nail pulling station and the steel nail collection container.

[0011] The nail pulling mechanism includes a nail pulling base, an opening and closing driving member, and two nail pulling clamping members. The two nail pulling clamping members are symmetrically arranged on the lower side of the nail pulling base in the left-right direction. The two nail pulling clamping members have clamping edges protruding towards each other. The clamping edges extend in the front-rear direction. The opening and closing driving member is used to drive the two nail pulling clamping members to approach each other or move away from each other.

[0012] The cell nail pulling device provided by the present utility model has at least the following beneficial effects: The cell is conveyed by the conveying device. When the conveyed cell is fixed at the nail pulling station by the positioning device, the transfer mechanism drives the nail pulling mechanism to move above the nail pulling station. The opening and closing driving member drives the two nail pulling clamping members to move towards each other. The two clamping edges can be clamped between the nail head of the steel nail and the upper end surface of the battery. The nail head of the steel nail is clamped on the upper side of the two clamping edges. When the nail pulling mechanism moves upward, it can drive the steel nail to be pulled out upward. The clamping edges extend in the front-rear direction, and multiple steel nails arranged in the front-rear direction can be pulled out simultaneously, with high nail pulling efficiency. The pulled-out steel nails move with the nail pulling mechanism and are put into the steel nail collection container for collection. The cell nail pulling device of the present utility model pulls out multiple arranged steel nails at one time through the clamping edges, with high nail pulling efficiency.

[0013] As a further improvement of the above technical solution, the transfer mechanism includes a transfer sliding seat, a translation driving member, and a lifting driving member. The nail pulling mechanism is installed on the transfer sliding seat. The translation driving member is used to drive the transfer sliding seat to move left and right relative to the nail pulling station. The lifting driving member is used to drive the nail pulling mechanism to lift up and down relative to the transfer sliding seat. Through the above technical solution, the transfer mechanism can drive the nail pulling mechanism to move left and right above the nail pulling station and the steel nail collection container, and can also drive the nail pulling mechanism to move up and down at the nail pulling station to perform the nail pulling action.

[0014] As a further improvement of the above technical solution, the frame includes a cross beam extending in the left-right direction. The cross beam is disposed above the conveying device. The cross beam, the transfer sliding seat, and the nail pulling base are arranged in sequence from top to bottom. Through the above technical solution, the cross beam can provide a connection and support basis for the transfer sliding seat, so that the nail pulling mechanism can move above the nail pulling station and the steel nail collection container.

[0015] As a further improvement to the above technical solution, the opening and closing drive component includes a bidirectional screw and an opening and closing drive motor. The bidirectional screw is connected to the output shaft of the opening and closing drive motor, and the two nail pulling clamps are threadedly connected to the bidirectional screw in opposite directions. Through this technical solution, the motor drives the bidirectional screw to move the two nail pulling clamps toward or away from each other, thereby achieving the action of clamping the clamping edge against the underside of the nail head.

[0016] As a further improvement to the above technical solution, the nail pulling base has two slide grooves extending left and right, the two slide grooves being arranged in a front-to-back relationship. The nail pulling clamp has sliders at both the front and rear ends, and the two sliders are slidably embedded in the two slide grooves. With this technical solution, the nail pulling clamp is slidably connected to the nail pulling base via the slide groove and slider structure, allowing the nail pulling force in the vertical direction to act on the nail pulling base, thereby avoiding affecting the service life of the driving components.

[0017] As a further improvement of the above technical solution, the nail pulling mechanism further includes a push-up member and a push-up drive unit. The lower end of the push-up member has a push-up portion, and the push-up drive unit is used to drive the push-up member to move up and down relative to the nail pulling clamp.

[0018] As a further improvement to the above technical solution, the clamping edge has multiple locking holes and / or reinforcing ribs arranged in a front-to-rear arrangement. With this technical solution, the locking holes can avoid the nail shank, allowing the two clamping edges to be close together or even fit together, increasing the contact area between the nail head and the clamping edge and reducing pressure. The reinforcing ribs can also increase the strength of the clamping edge, preventing deformation that could lead to failure during nail extraction.

[0019] As a further improvement to the above technical solution, the positioning device includes a fixed clamp, a movable clamp, and a positioning drive member. The fixed clamp and movable clamp are respectively located on the left and right sides of the nail removal station. The positioning drive member is used to drive the movable clamp to move left and right relative to the fixed clamp. Through the above technical solution, the positioning drive member mobilizes the movable clamp toward the fixed clamp, allowing the battery to be clamped between the fixed clamp and the movable clamp, thereby achieving battery positioning.

[0020] As a further improvement to the above technical solution, the upper ends of the fixed clamp and the movable clamp each have a limiting portion. The movable clamp is provided with adjustable limiting blocks at both ends, and a limiting pendulum is rotatably provided on the limiting member. The limiting pendulum has a first and a second perpendicular swing edge. Through the above technical solution, the limiting portion can limit the upper end of the battery to prevent the battery from moving due to the nail removal action. The limiting pendulum can act on the front and rear ends of the battery's side to limit the battery in the front-to-back direction.

[0021] As a further improvement of the above technical solution, the conveying device includes a plurality of belt conveying mechanisms, which are arranged at intervals left and right, and there is a nail receiving gap between two adjacent belt conveying mechanisms. Through the above technical solution, the nail receiving gap can prevent the tip of the steel nail from contacting the conveying device, and the plurality of belt conveying mechanisms can act on the lower end surface of the battery to realize the conveying of the nail-removed battery. Description of the Drawings

[0022] The following further describes the present utility model in conjunction with the drawings and embodiments;

[0023] Figure 1 It is the rear view of one embodiment of the core nail-removing device provided by the present utility model;

[0024] Figure 2 It is the top view of one embodiment of the core nail-removing device provided by the present utility model;

[0025] Figure 3 It is the three-dimensional schematic diagram of one embodiment of the nail-removing device provided by the present utility model;

[0026] Figure 4 It is the rear view of one embodiment of the nail-removing device provided by the present utility model;

[0027] Figure 5 It is the side sectional view of one embodiment of the nail-removing device provided by the present utility model;

[0028] Figure 6 It is the front sectional view of one embodiment of the nail-removing mechanism provided by the present utility model;

[0029] Figure 7 It is the top sectional view of one embodiment of the movable clip and the positioning driving member provided by the present utility model;

[0030] Figure 8 It is the front view of one embodiment of the nail-removing clip and the jacking mechanism provided by the present utility model.

[0031] In the figure: 10, frame; 20, conveying device; 30, positioning device; 40, nail pulling device; 50, steel nail collection container; 110, base; 120, cross beam; 121, avoidance hole; 210, nail pulling and conveying table; 211, nail pulling station; 212, nail containing gap; 220, incoming material conveyor; 230, outgoing material conveyor; 310, fixed clamping member; 320, movable clamping member; 321, limit swinging member; 3211, first swinging edge; 3212, second swinging edge; 322, limit block; 330, positioning driving member; 340, limiting part; 400, nail pulling mechanism; 410, nail pulling base; 411, guide post; 412, sliding groove; 420, opening and closing driving member; 421, bidirectional screw rod; 422, opening and closing driving motor; 430, nail pulling clamping member; 431, clamping member body; 432, driving block; 433, sliding block; 434, clamping edge; 435, clamping hole; 436, reinforcing rib; 440, jacking mechanism; 441, jacking member; 442, jacking driving unit; 500, transfer mechanism; 510, transfer sliding seat; 520, translation driving member; 530, lifting driving member. Detailed implementation manners

[0032] This part will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the drawings. The function of the drawings is to supplement the description of the text part of the specification, enabling people to intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but it should not be construed as a limitation on the protection scope of the present utility model.

[0033] In the description of the present utility model, it should be understood that for the orientation description, such as the orientation or positional relationship indicated by up, down, front, back, left, right, etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the present utility model.

[0034] In the description of the present utility model, if there are descriptions with words such as "several", its meaning is one or more, and the meaning of multiple is more than two. Understanding greater than, less than, exceeding, etc. does not include the present number, and understanding above, below, within, etc. includes the present number.

[0035] In the description of the present utility model, unless otherwise clearly defined, words such as setting, installing, connecting, etc. should be understood in a broad sense. Those skilled in the art can reasonably determine the specific meanings of the above words in the present utility model in combination with the specific content of the technical solution.

[0036] Referring to Figures 1 to 8 , the following embodiments are made for the battery cell nail pulling device of the present utility model:

[0037] A core nail-pulling device, comprising: a frame 10, a conveying device 20, a positioning device 30, and a nail-pulling device 40.

[0038] The conveying device 20, the positioning device 30, and the nail-pulling device 40 are all installed on the frame 10.

[0039] The conveying device 20 has a conveying surface for supporting and conveying foreign cores. The conveying surface extends in the front-rear direction. The conveying surface has a nail-pulling station.

[0040] The positioning device 30 is used to fix the core at the nail-pulling station. A steel nail collection container 50 is provided beside the nail-pulling station;

[0041] The nail-pulling device 40 straddles above the nail-pulling station and the steel nail collection container 50. The nail-pulling device 40 includes: a nail-pulling mechanism 400 and a transfer mechanism 500. The transfer mechanism 500 is used to drive the nail-pulling mechanism 400 to move between the nail-pulling station and the steel nail collection container 50.

[0042] The nail-pulling mechanism 400 includes: a nail-pulling base 410, an opening and closing driving member 420, and two nail-pulling clamping members 430. The two nail-pulling clamping members 430 are symmetrically arranged on the lower side of the nail-pulling base 410 in the left-right direction. The lower ends of the two nail-pulling clamping members 430 both have clamping edges 434. The clamping edges 434 of the two nail-pulling clamping members 430 protrude towards each other and extend in the front-rear direction. The opening and closing driving member 420 is used to drive the two nail-pulling clamping members 430 to approach each other or move away from each other.

[0043] During actual use, the core is conveyed by the conveying device 20. When the core is conveyed to the nail-pulling station along the conveying surface, the positioning device 30 fixes the core. The transfer mechanism 500 drives the nail-pulling mechanism 400 to move above the nail-pulling station. The opening and closing driving member 420 drives the two nail-pulling clamping members 430 to move towards each other. The two clamping edges 434 can clamp the steel nails puncturing the core, and the clamping edges 434 are inserted between the nail head of the steel nail and the upper end surface of the battery. The nail head of the steel nail is clamped on the upper side of the two clamping edges 434. When the nail-pulling mechanism 400 moves upwards, the steel nails can be pulled out upwards. The clamping edges 434 extend in the front-rear direction, and multiple steel nails arranged in the front-rear direction can be pulled out simultaneously, with high nail-pulling efficiency. The pulled-out steel nails move towards the steel nail collection container 50 together with the nail-pulling mechanism 400 driven by the transfer mechanism 500, and the steel nails are put into the steel nail collection container 50 to achieve the collection of steel nails.

[0044] Such as Figure 1 And Figure 2As shown, in this embodiment, the steel nail collecting container 50 is in a box shape, and the steel nail collecting container 50 is arranged on the right side of the nail pulling station.

[0045] To achieve nail removal and placement, the nail removal mechanism 400 must both move left and right relative to the frame 10 and be able to rise and fall relative to the frame 10. In this embodiment, the transfer mechanism 500 includes a transfer slide 510, a translation drive member 520, and a lift drive member 530. The nail removal mechanism 400 is mounted on the transfer slide 510. The translation drive member 520 has a translation drive end that is in transmission connection with the transfer slide 510 and causes it to move left and right relative to the frame 10. The lift drive member 530 is used to drive the nail removal mechanism 400 to rise and fall relative to the transfer slide 510.

[0046] The frame 10 includes a base 110 and a crossbeam 120. The conveying device 20 is mounted on the upper side of the base 110. The crossbeam 120 is mounted above the conveying device 20. The crossbeam 120 can be in the form of a gantry, with columns used to mount the crossbeam 120 in the left-right direction above the conveying device 20 and the steel nail collection container 50. In other embodiments, the crossbeam 120 can also be in the form of a cantilever beam structure, suspended above the conveying device 20 and the steel nail collection container 50.

[0047] The crossbeam 120 , the transfer slide 510 and the nail pulling base 410 are arranged in sequence from top to bottom.

[0048] like Figure 3 and Figure 4 As shown, the crossbeam 120 has a avoidance hole 121 extending left and right. The upper side of the nail pulling base 410 has a guide column 411 extending up and down, and the guide column 411 is slidably penetrated into the transfer slide 510 to realize the up and down sliding connection between the nail pulling base 410 and the transfer slide 510. The lifting drive component 530 is partially arranged in the avoidance hole 121. In this embodiment, the lifting drive component 530 is a hydraulic cylinder. The cylinder body of the lifting drive component 530 is fixedly installed on the upper side of the transfer slide 510, and the lower end of the piston rod of the lifting drive component 530 is fixedly connected to the middle part of the nail pulling base 410. In order to make the nail pulling base 410 evenly stressed, the guide columns 411 are arranged in pairs on both sides of the lifting drive component 530.

[0049] The transfer slide base 510 is arranged below the avoidance hole 121, and the front and rear ends of the transfer slide base 510 are respectively connected to the front and rear sides of the avoidance hole 121. A sliding connection is achieved between the transfer slide base 510 and the cross beam 120 through heavy-duty linear slide rails extending in the left-right direction. The heavy-duty linear slide rails are arranged in pairs on the front and rear sides of the avoidance hole 121. The translation driving member 520 adopts a lead screw-nut driving assembly. The translation driving member 520 is arranged above the cross beam 120 and avoids the upper space of the avoidance hole 121.

[0050] In some other embodiments, the lifting driving member 530 and the translation driving member 520 can adopt linear driving members such as air cylinders, electric push rods, hydraulic push rods, or lead screw-nut driving assemblies according to requirements.

[0051] During actual use, the lifting driving member 530 drives the nail-pulling base 410 to move up and down, and the translation driving member 520 drives the transfer slide base 510 to move left and right. The nail-pulling base 410 and the transfer slide base 510 can be vertically aligned, so that the pulling force of nail-pulling can be better transmitted to the transfer slide base 510 and the cross beam 120.

[0052] To enable the opening and closing distance between the two nail-pulling clamping members 430 to be adjusted according to different steel nail specifications, as Figure 6 shown, in this embodiment, the opening and closing driving member 420 includes: a bidirectional screw 421 and an opening and closing driving motor 422. The bidirectional screw 421 extends in the left-right direction. The bidirectional screw 421 is connected to the output shaft of the opening and closing driving motor 422. The bidirectional screw 421 is arranged below the nail-pulling base 410 and is rotationally connected to the nail-pulling base 410 around its own rotation axis. Both of the two nail-pulling clamping members 430 are slidably connected to the nail-pulling base 410 in the left-right direction and are in threaded transmission connection with the bidirectional screw 421. The thread directions of the left half and the right half of the bidirectional screw 421 are opposite, and the two nail-pulling clamping members 430 are symmetric with each other and are respectively in threaded connection with the left half and the right half of the bidirectional screw 421.

[0053] When the opening and closing driving motor 422 drives the bidirectional screw 421 to rotate, the two nail-pulling clamping members 430 move in opposite directions in the left-right direction under the action of threaded transmission, realizing the opening and closing actions of the two nail-pulling clamping members 430, so that the clamping edge 434 can be clamped between the steel nail head and the upper end surface of the battery.

[0054] In a further embodiment, to prevent the acting force of the nail-pulling clamping member 430 in the up-down direction from being transmitted to the bidirectional screw 421 during the nail-pulling process, which affects the service life and accuracy of the bidirectional screw 421, the nail-pulling clamping member 430 and the nail-pulling base 410 are slidably connected through a groove structure extending in the left-right direction.

[0055] Specifically, the nail pulling base 410 has two chutes 412 extending left and right, and the two chutes 412 are arranged opposite to each other front and back. Both the front and rear ends of the nail pulling clip 430 have sliders 433. The two sliders 433 of the nail pulling clip 430 are respectively slidably embedded in the two chutes 412.

[0056] Refer to the appendix Figure 5 and Figure 6 , the nail pulling clip 430 includes: a clip body 431 and a driving block 432.

[0057] The driving block 432 is threadedly sleeved on the bidirectional screw 421. The front and rear ends of the driving block 432 have connecting parts. The two sliders 433 are respectively arranged on the front and rear sides of the upper end of the clip body 431. The clamping edge 434 is arranged at the lower end of the clip body 431. There is a connecting cavity in the middle of the upper end of the clip body 431, and the driving block 432 is arranged in the connecting cavity. There are connecting grooves extending up and down on both sides of the connecting cavity, and the connecting parts of the driving block 432 are embedded in the connecting grooves, so that the driving block 432 and the clip body 431 move synchronously in the left and right directions.

[0058] For convenient installation, the connecting cavity is arranged to open upwards, and the chute 412 is arranged to penetrate left and right. When assembling the nail pulling mechanism 400, the connecting block is snapped into the connecting cavity from the upper side of the clip body 431, the clip body 431 together with the connecting block is installed in the left and right directions. While the connecting block is threadedly connected with the bidirectional screw 421, the slider 433 slides and is embedded in the chute 412.

[0059] The split - structure nail pulling clip 430 makes the forces in the up - down direction and the left - right direction independent of each other, reducing the mutual influence during the movement in the up - down direction and the left - right direction. During the nail pulling process, the force of the clip body 431 in the up - down direction can be transmitted to the nail pulling base 410 through the slider 433. When the bidirectional screw 421 drives the clip body 431 to move left and right through the connecting block, the connecting block and the clip body 431 are slidably connected in the up - down direction, avoiding the nail pulling force being transmitted to the bidirectional screw 421.

[0060] During the nail pulling process, the two nail pulling clips 430 pull out the whole row of steel nails simultaneously, which requires a relatively large nail pulling force. Considering situations such as the battery deforming and squeezing the steel nails tightly, or crystals being generated at the puncture site during the electrolyte reaction during the discharging process, the steel nails have a high fastening degree and are difficult to pull out. To reduce the pulling stress during nail pulling, such as Figure 8As shown, in this embodiment, the nail pulling mechanism 400 further includes a push-up member 440. The push-up member 440 comprises a push-up member 441 and a push-up drive unit 442. The push-up member has a push-up portion at its lower end. The push-up drive unit 442 has a push-up drive end that is in transmission connection with the push-up member 441 and causes the push-up portion to move up and down relative to the nail pulling clamp 430.

[0061] In order to avoid the battery cell housing being penetrated, the top opening portion is in a flat shape. In some embodiments, the top opening member is slidably mounted on the nail pulling clamp 430 along the vertical direction, and the top opening drive unit adopts a screw nut drive assembly or a hydraulic cylinder.

[0062] As attached Figure 3 and Figure 5 As shown, in this embodiment, the edge of the clamping edge 434 has a plurality of clamping holes 435. The clamping holes 435 are arranged in an array along the front-to-back direction. The clamping holes 435 are arranged in a one-to-one correspondence with the arranged steel nails. When pulling out the nails, the two clamping edges 434 are in contact with each other, the nail rod of the steel nail is between the two corresponding clamping holes 435, and the nail head of the steel nail is clamped on the upper side of the clamping edge 434. The clamping hole 435 can avoid the nail rod of the steel nail and provide a limit, so that the two clamping edges 434 can be close to or even fit together, increasing the contact area between the steel nail head and the clamping edge 434, and reducing the pressure between the steel nail and the clamping edge 434 when pulling out the nail. The steel nail that has detached from the battery cell can be confined between the two clamping holes 435 to prevent it from falling. The reinforcing ribs 436 can increase the strength of the clamping edge 434 to prevent it from deforming and causing abnormalities such as failure in nail pulling.

[0063] Furthermore, in order to prevent the clamping edge 434 from being deformed, the clamping edge 434 is provided with a plurality of reinforcing ribs 436. The plurality of reinforcing ribs 436 are arranged front to back. Figure 5 As shown, in order to avoid obstruction to nail removal, the reinforcing rib 436 is arranged to avoid the clamping hole 435 or the steel nail, and the reinforcing rib 436 is arranged between two adjacent clamping holes 435.

[0064] In this embodiment, the conveying device 20 includes a nail pulling conveying platform 210, an incoming material conveyor 220, and a discharge conveyor 230. The discharge conveyor 230 and the incoming material conveyor 220 are respectively arranged at the front and rear ends of the nail pulling conveying platform 210 and docked with the nail pulling conveying platform 210.

[0065] In this embodiment, the nail pulling conveyor platform 210 includes multiple belt conveyor mechanisms. The multiple belt conveyor mechanisms are arranged in a left-right spacing. A nail accommodating gap 212 is provided between two adjacent belt conveyor mechanisms. The multiple belt conveyor mechanisms are synchronously connected via transmission shafts extending left and right. The nail accommodating gap 212 prevents steel nails penetrating the battery cells from obstructing the conveyance, allowing the battery cells to be smoothly conveyed on the nail pulling conveyor platform 210. At the same time, the battery cells to be pulled out conveyed to the nail pulling station can maintain the same posture, facilitating nail pulling.

[0066] The incoming conveyor 220 and the unloading conveyor 230 are both used to transport battery cells. Battery cells to be removed are transported via the incoming conveyor 220 to the nail-removing conveyor platform 210. After the nails have been removed, the battery cells are transported from the nail-removing conveyor platform 210 to the unloading conveyor 230 for discharge. The unloading conveyor 230 can utilize commonly used conveyor mechanisms, such as belt conveyors and roller conveyors. To prevent damage to the incoming conveyor 220 from the sharp ends of the steel nails, the incoming conveyor 220 also utilizes multiple belt conveyors spaced apart to transport the battery cells, or a chain conveyor mechanism.

[0067] like Figure 1 and Figure 2 As shown, in this embodiment, the positioning device 30 is used to clamp and fix the battery cells transported to the nail pulling station in the left and right directions. The positioning device 30 includes: a fixed clamp 310, a movable clamp 320 and a positioning drive component 330. The movable clamp 320 and the fixed clamp 310 are respectively arranged on the left and right sides of the nail pulling station. The fixed clamp 310 is fixedly connected to the frame 10. The positioning drive component 330 has a positioning drive end that is transmission-connected to the movable clamp 320 and enables it to move left and right relative to the fixed clamp 310. The positioning drive component 330 can adopt a linear drive component such as a cylinder, an electric push rod, a hydraulic push rod or a screw nut drive assembly.

[0068] Reference Figure 1 In this embodiment, both the fixed clamp 310 and the movable clamp 320 have a stopper 340 at their upper ends. The stoppers 340 of the fixed clamp 310 and movable clamp 320 are aligned and extend toward each other. When the movable clamp 320 is pressed against the fixed clamp 310, the two stoppers 340 can be respectively positioned on the left and right sides of the upper end of the nail-pulling battery cell, limiting the battery cell's position and preventing it from moving upward during nail removal.

[0069] Furthermore, if Figure 7As shown, limiting members are provided at both the front and rear ends of the movable clip 320. The limiting members include: a limiting block 322 and a limiting pendulum 321. The limiting pendulum 321 has a first pendulum side 3211 and a second pendulum side 3212 that are perpendicular to each other. The limiting pendulum 321 is rotatably connected to the limiting block. The limiting block 322 is adjustably connected to the movable clip 320 in the front-rear direction.

[0070] Specifically, the movable clip 320 has a strip-shaped hole extending in the front-rear direction. The limiting block 322 is tightly connected to the movable clip 320 by a screw passing through the strip-shaped hole. By adjusting the distance between the two limiting blocks, the two limiting pendulums 321 can be aligned with the front and rear ends of the nail-pulling electric core respectively. When the movable clip 320 clamps the electric core, the limiting pendulum 321 can swing after contacting the electric core, and the first pendulum side and the second pendulum side can respectively abut against the side surface and the front and rear end faces of the electric core, so as to finely adjust the position of the electric core in the front-rear direction and improve the positioning accuracy of the electric core at the nail-pulling station.

[0071] Refer to Att Figure 1 to Att Figure 8 When the nail-pulling device of the present utility model is used to perform nail-pulling treatment on the recycled electric core:

[0072] First, the nail-pulling electric core to be discharged is conveyed to the nail-pulling conveying table 210 by the incoming material conveyor 220. The bottom of the battery is attached to a plurality of belt conveying mechanisms for conveying, and the nail tip at the lower end of the steel nail can be in the nail-containing gap between adjacent belt conveying mechanisms.

[0073] When the battery is conveyed to the nail-pulling station, the positioning driving member 330 drives the movable clip 320 to move to the right, and presses the electric core against the fixed clip 310. The two limiting pendulums 321 can limit the front and rear end corners on the left side of the electric core, and the limiting portions 340 of the fixed clip 310 and the movable clip 320 can limit the left and right ends on the upper side of the electric core.

[0074] The transfer mechanism 500 drives the nail-pulling mechanism 400 to move above the nail-pulling station. The lifting driving member 530 drives the nail-pulling base 410 to move downward, so that the clamping edges 434 of the two nail-pulling clips 430 descend to the left and right sides of the steel nail. The opening and closing driving motor 422 drives the bidirectional screw 421 to rotate, so that the two nail-pulling clips 430 move towards each other, and the clamping edges 434 are inserted between the lower side of the nail head and the upper end face of the electric core. The two clamping edges 434 are in contact with each other, and the nail rod of the steel nail is restricted in the two opposite card holes 435.

[0075] Next, the lifting drive member 530 drives the nail pulling base 410 to move upward, and the two clamping edges 434 abut against the lower side of the nail head of the steel nail, thereby driving the steel nail to move upward relative to the battery cell and pulling out the steel nail. During this process, the ejecting drive unit 442 drives the ejecting member 441 to move downward, and the ejecting portion and the clamping edge 434 act on the battery cell and the steel nail respectively, making it easier for the steel nail to move relative to the battery cell.

[0076] After the steel nail is separated from the battery cell, it moves horizontally to the right with the nail pulling mechanism 400 to above the steel nail collection container 50. The opening and closing drive member 420 drives the two nail pulling clamp members 430 to open, so that the steel nail falls into the steel nail collection container 50 under its own weight. The battery cell that has completed the nail pulling process continues to be conveyed forward to the blanking conveyor 230 to realize blanking and conveying, facilitating the docking of subsequent processes.

[0077] In the description of this specification, the description with reference to terms such as "one embodiment", "some embodiments", "schematic embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0078] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can still make various changes, modifications, substitutions, and variations to these embodiments without departing from the principles and purposes of the present invention. These changes, modifications, equivalent variations, or substitutions are all included within the scope defined by the claims of this application. The scope of the present invention is defined by the claims and their equivalents.

Claims

1. A core nail-pulling device, characterized in that: Including: a frame (10), a conveying device (20), a positioning device (30) and a nail pulling device (40); The conveying device (20), the positioning device (30) and the nail pulling device (40) are all installed on the frame (10); the conveying device (20) has a conveying surface for supporting and conveying the battery cells, the conveying surface extends in the front-rear direction, the conveying surface has a nail pulling station (211), the positioning device (30) is used to fix the battery cells at the nail pulling station (211), and a steel nail collection container (50) is arranged beside the nail pulling station (211); The nail pulling device (40) straddles above the nail pulling station (211) and the steel nail collection container (50), the nail pulling device (40) includes a nail pulling mechanism (400) and a transfer mechanism (500), and the transfer mechanism (500) is used to drive the nail pulling mechanism (400) to move between the nail pulling station (211) and the steel nail collection container (50); The nail pulling mechanism (400) includes a nail pulling base (410), an opening and closing driving member (420) and two nail pulling clamping members (430), the two nail pulling clamping members (430) are symmetrically arranged on the lower side of the nail pulling base (410) in the left-right direction, the two nail pulling clamping members (430) have clamping edges (434) protruding towards each other, the clamping edges (434) extend in the front-rear direction, and the opening and closing driving member (420) is used to drive the two nail pulling clamping members (430) to approach each other or move away from each other.

2. The nail pulling device for battery cells according to claim 1, characterized in that: The transfer mechanism (500) includes a transfer slide (510), a translation driving member (520) and a lifting driving member (530), the nail pulling mechanism (400) is installed on the transfer slide (510), the translation driving member (520) is used to drive the transfer slide (510) to move left and right relative to the nail pulling station (211), and the lifting driving member (530) is used to drive the nail pulling mechanism (400) to move up and down relative to the transfer slide (510).

3. The core nail-pulling device according to claim 2, characterized in that: The frame (10) includes a cross beam (120) extending in the left-right direction, the cross beam (120) is arranged above the conveying device (20), and the cross beam (120), the transfer slide (510) and the nail pulling base (410) are arranged in sequence from top to bottom.

4. The nail pulling device for the battery cell according to claim 1, wherein: The opening and closing driving member (420) includes a bidirectional screw (421) and an opening and closing driving motor (422), the bidirectional screw (421) is fixedly connected to the output shaft of the opening and closing driving motor (422), and the two nail pulling clamping members (430) are threadedly connected to the bidirectional screw (421) along opposite thread directions.

5. The core nail-pulling device according to claim 4, wherein: The nail pulling base (410) has two chutes (412) extending in the left-right direction, the two chutes (412) are arranged opposite to each other in the front-rear direction, the front and rear ends of the nail pulling clamping member (430) both have sliders (433), and the two sliders (433) are respectively slidably embedded in the two chutes (412).

6. The core nail-pulling device according to claim 1, characterized in that: The nail pulling mechanism (400) further includes a jacking member (441) and a jacking driving unit (442). The lower end of the jacking member (441) has a jacking portion, and the jacking driving unit (442) is configured to drive the jacking member (441) to move up and down relative to the nail pulling clamping member (430).

7. The core nail-pulling device according to claim 1, characterized in that: The clamping edge (434) has a plurality of card holes (435) and / or reinforcing ribs (436) arranged front and rear.

8. The nail pulling device for battery cells according to claim 1, wherein: The positioning device (30) includes a fixed clamping member (310), a movable clamping member (320), and a positioning driving member (330). The fixed clamping member (310) and the movable clamping member (320) are respectively disposed on the left and right sides of the nail pulling station (211), and the positioning driving member (330) is configured to drive the movable clamping member (320) to move left and right relative to the fixed clamping member (310).

9. The nail pulling device for the battery cell according to claim 8, characterized in that: The upper ends of the fixed clamping member (310) and the movable clamping member (320) both have a limiting portion (340). The front and rear ends of the movable clamping member (320) are rotatably provided with limiting pendants (321), and the limiting pendants (321) have a first pendulum edge (3211) and a second pendulum edge (3212) that are perpendicular to each other.

10. The core nail-pulling device according to claim 1, characterized in that: The conveying device (20) includes a plurality of belt conveying mechanisms. The plurality of belt conveying mechanisms are arranged at intervals left and right, and there is a nail receiving gap (212) between two adjacent belt conveying mechanisms.

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