Large cylindrical battery end face formed by pouring conductive copper paste and processing equipment

Abstract

The invention relates to the technical field of large cylindrical battery end faces, and discloses a large cylindrical battery end face formed by pouring conductive copper paste and processing equipment, the battery end face comprises net-shaped confluence bodies, the net-shaped confluence bodies are symmetrically arranged at the two ends of a cylindrical battery, and the net-shaped confluence bodies are fixed to the cylindrical battery through conductive adhesive; the conductive part is connected with the net-shaped confluence body and is formed by pouring conductive slurry; a concave pit is pre-formed in the conductive part, is used for improving the conductivity of the cylindrical battery, and is formed by stamping through an ultrasonic kneading machine; the net-shaped confluence body comprises a circular part and a protruding part, a plurality of holes are formed in the circular part, and the conductive part is connected with the circular part and matched with the circular part; the conductive part formed in the mode can be manufactured according to the shape of the confluence body, and meanwhile, the concave pits with different shapes are formed by stamping on the net-shaped confluence body, so that the conductivity of the confluence body is improved, and the battery can be ensured to smoothly perform energy supply work.

Description

Technical Field

[0001] This invention relates to the field of large cylindrical battery end face technology, specifically a large cylindrical battery end face formed by casting conductive copper paste and processing equipment. Background Technology

[0002] The end face of the large cylindrical battery is a key part of the new energy vehicle battery. The positive and negative electrodes are led out from it to realize current transmission. It can also be connected to the heat dissipation component to help dissipate heat. At the same time, it is used to fix the battery cells. Some end faces are equipped with safety devices such as pressure relief valves to ensure the safe and stable operation of the battery.

[0003] For example, Chinese patent CN102203978B discloses a cylindrical battery, including a cylindrical battery electrode assembly formed by winding positive and negative electrode sheets separated by a separator. The cylindrical battery electrode assembly is wound on a core rod. The inner end face of the positive electrode lead at one end of the cylindrical battery electrode assembly is directly connected to the entire end of the positive electrode sheet at the opposite end of the cylindrical battery electrode assembly. The inner end face of the negative electrode lead at the other end of the cylindrical battery electrode assembly is directly connected to the entire end of the negative electrode sheet at the opposite end of the cylindrical battery electrode assembly, thereby forming a current-collecting structure in which the positive and negative electrode leads are respectively located at both ends of the battery. The positive and negative electrode leads are provided with elastic element grooves, which improves the charging and discharging performance and safety performance of the battery.

[0004] However, existing technical solutions still have some problems. The conductive components in existing technical solutions are mostly pre-formed and cannot be well attached to the collector, resulting in poor conductivity of the battery. At the same time, the surfaces of existing conductive components are mostly relatively flat, making it difficult to actively eliminate internal defects and accurately control the interface morphology, thus affecting the conductivity of the battery.

[0005] Therefore, how to design a new type of large cylindrical battery end face is a problem that needs to be solved. Summary of the Invention

[0006] This invention provides a large cylindrical battery end face and processing equipment formed by casting conductive copper paste, in order to solve the above-mentioned problems existing in the prior art.

[0007] A large cylindrical battery end face formed by casting conductive copper paste includes:

[0008] Two mesh-like manifolds are symmetrically arranged at both ends of a cylindrical battery and fixed to the cylindrical battery with conductive adhesive. A winding core is placed inside the cylindrical battery.

[0009] The conductive component, connected to the mesh manifold, is formed by casting conductive slurry.

[0010] The conductive component has pre-set recesses, which are used to increase the conductivity of the cylindrical battery. The recesses are formed by stamping with an ultrasonic flattening machine.

[0011] The mesh-like manifold includes a circular portion and a protruding portion. The circular portion has multiple holes, and the conductive component is connected to and adapted to the circular portion.

[0012] In a top view of the large cylindrical battery, the recess is located in the circular portion of the mesh-like manifold.

[0013] A processing device includes a worktable, a feeding mechanism and a rejection mechanism fixedly connected to the worktable, a battery cell adsorption unit fixedly connected to the worktable for pushing and adsorbing the flattened core, a conveying mechanism fixedly connected to the worktable for transporting the battery cell to the next working area, an assembly unit fixedly installed on the worktable, and a unloading mechanism fixedly connected to the worktable; the feeding mechanism, rejection mechanism, conveying mechanism, and unloading mechanism are all prior art.

[0014] The feeding mechanism includes, but is not limited to, a conveyor and a protective railing located on the conveyor;

[0015] The rejection mechanism includes a rejection cylinder fixedly installed on the workbench, a handling hand connected to the output end of the rejection cylinder, and a placement tray with a certain tilt angle fixedly connected to the workbench.

[0016] The transport mechanism includes an XY translation section and multiple grippers mounted on the translation section. By changing the position of the grippers through the translation section, the transport of the battery cell can be completed.

[0017] The unloading mechanism includes a rotating part, a pushing part, and a transporting part. The rotating part includes a power source and a rotating frame connected to the power source. The rotating frame has a cross-shaped structure. The pushing part includes a pushing source and a pushing plate connected to the output end of the pushing source. One of the pushing parts is horizontal to the transporting direction of the transporting part, and the other is perpendicular to the transporting direction of the transporting part. The transporting part includes, but is not limited to, the above-mentioned loading mechanism.

[0018] Furthermore, the battery cell adsorption unit includes a placement platform fixedly installed on the workbench, two propulsion cylinders symmetrically arranged in the length direction of the placement platform, an adapter connected to the output end of the propulsion cylinders, and an adsorption part connected to the adapter.

[0019] The adsorption unit includes an adsorption seat connected to the adapter, a first adjusting member located in the adsorption seat, a connecting pipe connected to the first adjusting member, a second adjusting member connected to the connecting pipe, and a plurality of output cylinders for connecting the first adjusting member and the adapter.

[0020] The adapter is provided with an air hole, which is connected to the first adjusting component;

[0021] The connecting pipe has multiple air outlets around its circumference.

[0022] Furthermore, the first adjusting member includes a first guide tube and a sealing seat disposed in the adsorption seat, a first return spring for connecting the first guide tube and the sealing seat, a second guide tube disposed in the first guide tube, and a second return spring for connecting the second guide tube and the first guide tube.

[0023] The second guide tube has a tapered structure at one end near the connecting tube, with its diameter gradually decreasing. It has a snap-fit ​​hole on the first guide tube and a snap-fit ​​ball located in the snap-fit ​​hole.

[0024] The first guide tube has multiple through holes circumferentially located at one end near the connecting tube;

[0025] The second guide tube has an annular protrusion on its circumference at the end away from the second adjusting member, and one end of the second reset spring abuts against the annular protrusion.

[0026] Furthermore, the second adjusting member includes an air intake seat connected to the connecting pipe, a support pipe connected to the air intake seat, a third return spring located inside the support pipe, a push piston connected to the third return spring, a first chamber built into the air intake seat, a plurality of second chambers communicating with the first chamber and surrounding the circumference of the support pipe, an annular third chamber opened on the inner wall of the air intake seat, and a connecting channel for connecting the third chamber and the first chamber;

[0027] The suction seat is provided with a suction hole, and there is a gap between the outer wall of the support tube and the inner wall of the suction seat. The suction hole and the second chamber are connected through the gap.

[0028] Furthermore, the assembly unit includes an assembly table fixedly mounted on the workbench, two dispensing tables symmetrically arranged on the assembly table, two supports connected to the workbench, and an electrode feeding assembly connected to the supports.

[0029] The electrode feeding assembly includes a guide seat located on the bracket, a guide post disposed on the guide seat, a drive unit mounted on the guide seat, a pressing block slidably connected to the guide post, an adsorption propulsion member fixedly mounted on the bracket, a connecting block connected to the guide post, a motor disposed on the connecting block, a rotating block connected to the output end of the motor, a first negative pressure adsorption nozzle disposed on the rotating block, an arranging part connected to the drive unit, and a feeding part disposed on the guide seat and directly opposite the arranging part.

[0030] Furthermore, the drive unit includes a telescopic cylinder fixedly mounted on the guide seat, a connecting block connected to the output end of the telescopic cylinder, a rack connected to the connecting block and slidably connected to the guide seat, a first gear meshing with the rack, a first dual-axis gear meshing with the first gear, and a second dual-axis gear meshing with the first dual-axis gear.

[0031] The arrangement portion is disposed on the second dual-shaft gear;

[0032] The adsorption propulsion component includes a propulsion cylinder, a propulsion seat disposed at the output end of the propulsion cylinder, and a second negative pressure adsorption nozzle disposed on the propulsion seat.

[0033] Furthermore, the arrangement includes a card located between the second dual-axis gears, an extraction tooth abutting against the card and movably connected to the second dual-axis gears, and a branch tooth connected to the extraction tooth;

[0034] There is a curved area between the extracted tooth and the branch tooth, and one end of the card is located within the curved area;

[0035] The card is elastic. Through the operation of the drive unit, the second double-axis gear is driven to rotate, thereby driving the extraction tooth to move, so that the branch tooth abuts against the protruding part of the mesh conduit, and drives the mesh conduit to rotate, so that it falls from the predetermined position into the feeding part, completing the sorting and feeding of the mesh conduit.

[0036] Furthermore, the unloading part includes a base fixedly installed on the guide seat, a power component connected to the base, a plurality of support rollers connected to the base, and an unloading frame disposed on the support rollers;

[0037] The feeding frame is provided with a groove adapted to the mesh concentrator.

[0038] Furthermore, the power component includes a feeding motor fixedly mounted on the base, a transmission wheel assembly respectively disposed on the base, a belt connected to the transmission wheel assembly and the output end of the feeding motor, and a feeding shaft connected to the transmission wheel assembly;

[0039] The feeding shaft is provided with a spiral groove in the circumferential direction;

[0040] The transmission wheel assembly includes multiple transmission wheels, wherein at least two guide wheels are provided between adjacent transmission wheels, and the transmission wheels are connected to the feeding shaft.

[0041] Beneficial Effects: This invention discloses a large cylindrical battery end face and processing equipment formed by casting conductive copper paste. To design a novel large cylindrical battery end face, the battery end face in this invention includes a mesh-like manifold and a conductive component. The flattened core and the mesh-like manifold are bonded together using conductive adhesive, and then the tightness between them is enhanced by hot pressing, allowing the conductive adhesive to cure quickly. Then, conductive paste is poured onto the mesh-like manifold and dried to form the conductive component. Finally, different indentations are punched into the conductive component using an ultrasonic flattening machine. At this point, the battery end face is formed using the above method. The conductive components can be manufactured according to the shape of the manifold, perfectly fitting each manifold. Simultaneously, by stamping the mesh manifold, different shaped pits are formed, increasing the manifold's conductivity and ensuring the battery can supply power smoothly. Furthermore, the device includes processing equipment; through an adsorption section, negative pressure adsorption is applied to both sides of the core, and secondary adsorption is applied to the area on the placement platform. This reduces debris generated during the flattening process, preventing excessive debris from causing serious risks such as internal short circuits and performance degradation within the battery cell. Attached Figure Description

[0042] Figure 1 This is a flowchart illustrating the preparation process of the end face of a large cylindrical battery formed by casting conductive copper paste according to the present invention.

[0043] Figure 2 This is a schematic diagram of the conductive component structure of the present invention;

[0044] Figure 3 This is a schematic diagram of the processing equipment structure of the present invention;

[0045] Figure 4 This is a schematic diagram of the battery cell adsorption unit structure of the present invention;

[0046] Figure 5 This is a schematic diagram of the assembly unit structure of the present invention;

[0047] Figure 6 This is a schematic diagram of the adsorption section structure of the present invention;

[0048] Figure 7 This is a schematic diagram of the structure of the second adjusting member of the present invention;

[0049] Figure 8 This is a schematic diagram of the support tube of the present invention;

[0050] Figure 9 This is a schematic diagram of the electrode feeding assembly structure of the present invention;

[0051] Figure 10 This is a schematic diagram of the guide post of the present invention;

[0052] Figure 11 This is a schematic diagram of the drive unit structure of the present invention;

[0053] Figure 12 This is a schematic diagram of the arrangement structure of the present invention;

[0054] Figure 13 This is a schematic diagram of the feeding section structure of the present invention;

[0055] Figure 14 This is a schematic diagram of the power component structure of the present invention.

[0056] Reference numerals: 1. Workbench; 2. Feeding mechanism; 3. Rejection mechanism; 4. Transport mechanism; 5. Cell adsorption unit; 51. Propulsion cylinder; 52. Adapter; 53. Placement platform; 54. Adsorption section; 541. Adsorption seat; 542. First adjusting component; 5421. Sealing seat; 5422. First guide tube; 5423. Second guide tube; 5424. Second return spring; 5425. First return spring; 5426. Snap-fit ​​ball; 543. Connecting tube; 544. Second adjusting component; 5441. Suction seat; 5442. Propulsion piston; 5443. First chamber; 5444. Second chamber; 5445. Support tube; 5446. Third return spring; 5447. Third chamber; 6. Assembly unit; 61. Assembly table; 62. Dispensing agent. 63. Electrode feeding assembly; 631. Guide seat; 632. Drive unit; 6321. Telescopic cylinder; 6322. Connecting block; 6323. Rack; 6324. First gear; 6325. First double-axis gear; 633. Guide column; 634. Adsorption propulsion component; 635. Rotating block; 636. Pressing block; 637. Arrangement unit; 6371. Second double-axis gear; 6372. Card; 6373. Tooth extraction; 6374. Branch tooth; 638. Feeding unit; 6381. Feeding motor; 6382. Transmission wheel set; 6383. Belt; 6384. Feeding frame; 6385. Base; 6386. Support roller; 6387. Feeding shaft; 64. Bracket; 7. Feeding mechanism; 8. Core; 9. Mesh collector; 10. Conductive component. Detailed Implementation

[0057] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0058] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the invention is not limited to the specific embodiments disclosed below.

[0059] Secondly, the term "an 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 phrase "in one embodiment" appearing in different places throughout this specification does not necessarily refer to the same embodiment, nor is it a single embodiment or an embodiment selectively excluded from other embodiments.

[0060] Reference Figures 1-14 This invention discloses a large cylindrical battery end face formed by casting conductive copper paste and a processing device thereon. The large cylindrical battery end face formed by casting conductive copper paste includes:

[0061] Two mesh-like manifolds 9 are symmetrically arranged at both ends of the cylindrical battery and fixed to the cylindrical battery with conductive adhesive. A core 8 is placed inside the cylindrical battery. A conductive element 10, connected to the mesh-like manifolds 9, is formed by casting conductive slurry. The conductive element 10 has pre-set recesses to increase the conductivity of the cylindrical battery; these recesses are formed by ultrasonic pressing. The mesh-like manifolds 9 include a circular portion and a protruding portion. The circular portion has multiple holes, and the conductive element 10 is connected to and adapted to this circular portion. In a top view of the large cylindrical battery, the recesses are located on the circular portion of the mesh-like manifolds 9. The core 8 and the mesh manifold 9 are bonded together using conductive adhesive, and then the tightness between them is strengthened by hot pressing, which allows the conductive adhesive to cure quickly. Then, conductive slurry is poured onto the mesh manifold 9 and dried to form the conductive component 10. Then, different pits are punched into the conductive component 10 using an ultrasonic flattening machine. The conductive component 10 formed in the above way can be made according to the shape of the manifold and can perfectly fit each manifold. At the same time, by punching different shaped pits on the mesh manifold 9, the conductivity of the mesh manifold 9 is increased, ensuring that the battery can supply power smoothly.

[0062] A processing device includes a worktable 1, a feeding mechanism 2 and a rejection mechanism 3 fixedly connected to the worktable 1, a battery cell adsorption unit 5 fixedly connected to the worktable 1 for pushing and adsorbing the flattened core 8, a conveying mechanism 4 fixedly connected to the worktable 1 for transporting the battery cells to the next working area, an assembly unit 6 fixedly installed on the worktable 1, and a unloading mechanism 7 fixedly connected to the worktable 1. The feeding mechanism 2 transports the core 8 to a predetermined position, and the vision mechanism (existing technology) and rejection mechanism 3 reject defective cores 8. The battery cell adsorption unit 5 then positions the core 8 accordingly. After being pushed to a predetermined position, the cell adsorption unit 5 can adsorb the core 8, reducing the residual debris in the core 8. During the reverse movement of the cell adsorption unit 5, it can adsorb the cells that fall in the path of the core 8, reducing the amount of debris on the placement table 53. The assembly unit 6 can not only complete the dispensing work, but also sort and unload the irregular mesh manifold 9, so that it can be smoothly attached to the core 8, thereby completing the processing and production of the battery end face. Then, the unloading mechanism 7 transports it to a predetermined position, and the ultrasonic flattening machine processes the battery end face, forming pits of different shapes on the surface.

[0063] The battery cell adsorption unit 5 includes a placement platform 53 fixedly mounted on the workbench 1, two symmetrically arranged propulsion cylinders 51 along the length of the placement platform 53, an adapter 52 connected to the output end of the propulsion cylinders 51, and an adsorption part 54 connected to the adapter 52. The adsorption part 54 includes an adsorption seat 541 connected to the adapter 52, a first adjusting member 542 located in the adsorption seat 541, a connecting pipe 543 connected to the first adjusting member 542, a second adjusting member 544 connected to the connecting pipe 543, and multiple output cylinders for connecting the first adjusting member 542 and the adapter 52. The adapter 52 has an air hole that communicates with the first adjusting member 542. The connecting pipe 543 has multiple air outlets in the circumferential direction. The first adjusting member 542 includes components disposed on the adsorption seat. The first guide tube 5422 and sealing seat 5421 in 541 are used to connect the first guide tube 5422 and the sealing seat 5421. A first return spring 5425 is used to connect the first guide tube 5422 and the sealing seat 5421. A second guide tube 5423 is disposed in the first guide tube 5422. A second return spring 5424 is used to connect the second guide tube 5423 and the first guide tube 5422. The end of the second guide tube 5423 near the connecting tube 543 is tapered and its diameter gradually decreases. A snap-fit ​​hole is opened on the first guide tube 5422. A snap-fit ​​ball 5426 is located in the snap-fit ​​hole. The end of the first guide tube 5422 near the connecting tube 543 is provided with multiple through holes in the circumferential direction. The end of the second guide tube 5423 away from the second adjusting member 544 is provided with an annular protrusion in the circumferential direction. One end of the second return spring 5424 abuts against the annular protrusion.

[0064] During the negative pressure adsorption process, the propulsion cylinder 51 moves the adsorption seat 541, placing the battery cell on the placement platform 53. The air pump then creates negative pressure gas within the battery cell adsorption unit 5, completing the initial negative pressure adsorption of the core 8. As the propulsion cylinder 51 retracts, the output cylinder activates, moving the second guide tube 5423. One end of the second guide tube 5423 moves away from the bottom of the first guide tube 5422, while the first guide tube 5422 moves away from the propulsion piston 5442. External gas then enters the connecting tube 543 through the through-hole, and then enters the first guide tube 5422 through the through-hole, moving along the inside of the second guide tube 5423. This process effectively adsorbs debris along the movement path of the core 8, preventing damage to the battery cell during the pushing process.

[0065] The second adjusting member 544 includes an air intake seat 5441 connected to the connecting pipe 543, a support pipe 5445 connected to the air intake seat 5441, a third return spring 5446 located in the support pipe 5445, a push piston 5442 connected to the third return spring 5446, a first chamber 5443 built into the air intake seat 5441, a plurality of second chambers 5444 communicating with the first chamber 5443 and surrounding the support pipe 5445 in the circumferential direction, an annular third chamber 5447 opened on the inner wall of the air intake seat 5441, and a connecting channel for connecting the third chamber 5447 and the first chamber 5443; the air intake seat 5441 is provided with an air intake hole, and there is a gap between the outer wall of the support pipe 5445 and the inner wall of the air intake seat 5441, and the air intake hole and the second chamber 5444 communicate through the gap;

[0066] When the second adjusting member 544 needs to start working, it abuts against the core 8 and pushes the core 8 to move to a predetermined position. Then, the output cylinder can push the second guide tube 5423 to move, and then change the deformation of the second return spring 5424, thereby pushing the first guide tube 5422 to move. This causes the first guide tube 5422 to abut against the push piston 5442 and push the push piston 5442 to move. At this time, the through hole on the first guide tube 5422 is connected to the third chamber 5447. Then, the gas can move along the connecting channel and through the first chamber 5443, the second chamber 5444 and the suction hole, thereby completing the axial adsorption of the core 8, avoiding excessive residue of debris in the core 8, and thus reducing the possibility of cell damage.

[0067] The initial adsorption during the negative pressure stage quickly secures the core 8. Simultaneously, during the retraction of the propulsion cylinder 51, the gas flow path is used to adsorb debris along the core 8's movement path, reducing interference from debris on the battery cell. When the second adjustment component 544 is operational, it uses the first chamber 5443, the second chamber 5444, and the suction port to adsorb the core 8 axially, further cleaning residual debris inside the core 8 and reducing the risk of battery cell damage due to excessive debris. Integrating propulsion, adsorption, and adjustment functions into a single unit, the coordinated operation of cylinder drive and gas flow allows for continuous placement, adsorption, cleaning, and positioning of the battery cell, reducing equipment space requirements and improving overall work efficiency.

[0068] The assembly unit 6 includes an assembly table 61 fixedly mounted on the workbench 1, two dispensing tables 62 symmetrically arranged on the assembly table 61, two supports 64 connected to the workbench 1, and an electrode feeding assembly 63 connected to the supports 64. The electrode feeding assembly 63 includes a guide seat 631 located on the supports 64, a guide post 633 arranged on the guide seat 631, a drive part 632 mounted on the guide seat 631, a pressing block 636 slidably connected to the guide post 633, an adsorption and propulsion member 634 fixedly mounted on the supports 64, a connecting block 6322 connected to the guide post 633, a motor arranged on the connecting block 6322, a rotating block 635 connected to the output end of the motor, a first negative pressure adsorption nozzle arranged on the rotating block 635, an arrangement part 637 connected to the drive part 632, and a feeding part 638 arranged on the guide seat 631 and directly opposite the arrangement part 637.

[0069] After the negative pressure adsorption of the core 8 is completed, the core 8 can be transported to the assembly table 61 by the conveying mechanism 4. Then, the driving part 632 can drive the arranging part 637 to move. During this process, the moving arranging part 637 can drive the irregular mesh collector 9 to move and adjust the position of the mesh collector 9 so that the protruding part in the mesh collector 9 can be located in a predetermined position, so that the mesh collector 9 can fall from the predetermined position and fall into the unloading frame 6384, completing the unloading of the mesh collector 9.

[0070] The drive unit 632 includes a telescopic cylinder 6321 fixedly mounted on the guide seat 631, a connecting block 6322 connected to the output end of the telescopic cylinder 6321, a rack 6323 connected to the connecting block 6322 and slidably connected to the guide seat 631, a first gear 6324 meshing with the rack 6323, a first dual-axis gear 6325 meshing with the first gear 6324, and a second dual-axis gear 6371 meshing with the first dual-axis gear 6325; the arrangement part 637 is disposed on the second dual-axis gear 6371; when the drive unit 632 needs to start working, the telescopic cylinder 6321 starts to move, and the moving telescopic cylinder 6321 can drive the connecting block 6322 to move, and then... The moving connecting block 6322 can drive the rack 6323 to move, and the moving rack 6323 can drive the first gear 6324 to rotate, and the moving first gear 6324 can drive the first double-axis gear 6325 to rotate, so that the first double-axis gear 6325 can drive the second double-axis gear 6371 to rotate. Then the moving second double-axis gear 6371 can drive the arrangement part 637 to rotate, so that it can adjust the position of the mesh collector 9 located therein, so that the protruding part of the mesh collector 9 is in a predetermined position, completing the filling work of the feeding part 638, so that the mesh collector 9 can fall into the feeding part 638 in a predetermined shape, ensuring the smooth operation of the feeding part 638.

[0071] The arrangement section 637 includes a card 6372 located between the second dual-axis gears 6371, an extraction tooth 6373 abutting against the card 6372 and movably connected to the second dual-axis gears 6371, and a branch tooth 6374 connected to the extraction tooth 6373; there is a curved area between the extraction tooth 6373 and the branch tooth 6374, and one end of the card 6372 is located in the curved area; the card 6372 is elastic, and through the operation of the drive section 632, the second dual-axis gears 6371 are driven to rotate, thereby driving the extraction tooth 6373 to move, so that the branch tooth 6374 abuts against the protruding part of the mesh conduit 9, and drives the mesh conduit 9 to rotate, so that it falls from a predetermined position into the unloading section 638, completing the sorting and unloading of the irregular mesh conduit 9.

[0072] The feeding section 638 includes a base 6385 fixedly mounted on the guide seat 631, a power component connected to the base 6385, a plurality of support rollers 6386 connected to the base 6385, and a feeding frame 6384 disposed on the support rollers 6386; the feeding frame 6384 is provided with a groove adapted to the mesh confluence fluid 9; the power component includes a feeding motor 6381 fixedly mounted on the base 6385, a transmission wheel set 6382 respectively disposed on the base 6385, a belt 6383 connected to the output end of the transmission wheel set 6382 and the feeding motor 6381, and a feeding shaft 6387 connected to the transmission wheel set 6382; the feeding shaft 6387 is provided with a spiral groove in the circumferential direction.

[0073] When the mesh-like collector 9 falls into the support roller 6386, the feeding motor 6381 starts working. The moving feeding motor 6381 can drive the feeding shaft 6387 to move through the transmission wheel set 6382 and belt 6383, thereby completing the feeding of the mesh-like collector 9. During the feeding process, the assembly unit 6 can only start feeding after the feeding shaft 6387 rotates to a predetermined angle, so that there is a certain gap between the mesh-like collectors 9 located in the feeding part 638, completing the feeding of the mesh-like collector 9, and then the mesh-like collector 9 can fall into The motor starts working on the rotating block 635, and the moving motor can drive the rotating block 635 to move. Then the push cylinder starts working, thereby changing the position of the push seat. Then the second negative pressure suction nozzle can perform suction work on the mesh collector 9. Then, through the movement of the push cylinder, the mesh collector 9 can be positioned in a predetermined position. Then the glue dispensing table 62 starts working, thereby applying conductive glue to both ends of the core 8. At this time, with the movement of the push cylinder 51, the mesh collector 9 can be attached to both ends of the core 8, completing the feeding work of the mesh collector 9.

[0074] Working principle description: The flattened core 8 and the mesh manifold 9 are bonded together using conductive adhesive. Then, the tightness between the two is strengthened by hot pressing, which allows the conductive adhesive to cure quickly. Then, conductive slurry is poured onto the mesh manifold 9 and dried to form the conductive part 10. Then, different pits are punched into the conductive part 10 using an ultrasonic flattening machine. The conductive part 10 formed in the above way can be made according to the shape of the manifold and can perfectly fit each manifold. At the same time, different shaped pits are formed by punching on the mesh manifold 9.

[0075] During the negative pressure adsorption phase, the propulsion cylinder 51 moves the adsorption seat 541, positioning the battery cell on the placement platform 53. A negative pressure gas is then created within the battery cell adsorption unit 5 by the air pump, completing the initial negative pressure adsorption of the core 8. As the propulsion cylinder 51 retracts, the output cylinder activates, moving the second guide tube 5423. At this point, one end of the second guide tube 5423 moves away from the bottom of the first guide tube 5422, while the first guide tube 5422 moves away from the propulsion piston 5442. External gas then enters the connecting tube 543 through the through-hole, and then enters the first guide tube 5422 through the through-hole, before moving along the second guide tube 5423, thus completing the adsorption of the core 8 along its movement path. The waste debris is adsorbed to avoid damage to the battery cell during the pushing process. When the second adjusting member 544 needs to start working, it abuts against the core 8 and pushes the core 8 to move to a predetermined position. Then, the output cylinder can push the second guide tube 5423 to move, and then change the deformation of the second return spring 5424, thereby pushing the first guide tube 5422 to move. This causes the first guide tube 5422 to abut against the push piston 5442 and push the push piston 5442 to move. At this time, the through hole on the first guide tube 5422 is connected to the third chamber 5447. Then, the gas can move along the connecting channel and through the first chamber 5443, the second chamber 5444 and the suction hole, thereby completing the axial adsorption of the core 8. This can avoid excessive residual debris in the core 8, thereby reducing the possibility of battery cell damage.

[0076] After the negative pressure adsorption of the core 8 is completed, the core 8 can be transported to the assembly table 61 by the conveying mechanism 4. Then, the driving part 632 can drive the arranging part 637 to move. During this process, the moving arranging part 637 can drive the irregular mesh collector 9 to move and adjust the position of the mesh collector 9 so that the protruding part in the mesh collector 9 can be located in a predetermined position, so that the mesh collector 9 can fall from the predetermined position and fall into the unloading frame 6384, thus completing the unloading of the mesh collector 9.

[0077] When the drive unit 632 needs to start working, the telescopic cylinder 6321 starts to move. The moving telescopic cylinder 6321 can drive the connecting block 6322 to move. Then the moving connecting block 6322 can drive the rack 6323 to move. In turn, the moving rack 6323 can drive the first gear 6324 to rotate. In turn, the moving first gear 6324 can drive the first double-shaft gear 6325 to rotate. This allows the first double-shaft gear 6325 to drive the second double-shaft gear 6371 to rotate. Then, the moving second double-shaft gear 6371 can drive the arrangement unit 637 to rotate, so that it can adjust the position of the mesh collector 9 located therein. This ensures that the protruding part of the mesh collector 9 is in a predetermined position, completing the filling work of the feeding unit 638. This allows the mesh collector 9 to fall into the feeding unit 638 in a predetermined shape, ensuring the smooth operation of the feeding unit 638.

[0078] The operation of the drive unit 632 drives the second double-shaft gear 6371 to rotate, thereby driving the extraction tooth 6373 to move, so that the branch tooth 6374 abuts against the protruding part of the mesh concentrator 9, and drives the mesh concentrator 9 to rotate, so that it falls from the predetermined position into the unloading unit 638, completing the sorting and unloading of the irregular mesh concentrator 9.

[0079] When the mesh-like collector 9 falls into the support roller 6386, the feeding motor 6381 starts working. The moving feeding motor 6381 can drive the feeding shaft 6387 to move through the transmission wheel set 6382 and belt 6383, thereby completing the feeding of the mesh-like collector 9. During the feeding process, the assembly unit 6 can only start feeding after the feeding shaft 6387 rotates to a predetermined angle, so that there is a certain gap between the mesh-like collectors 9 located in the feeding part 638, completing the feeding of the mesh-like collector 9, and then the mesh-like collector 9 can fall into the ground. The material is fed onto the rotating block 635, and then the motor starts working. The moving motor can drive the rotating block 635 to move, and then the push cylinder starts working, thereby changing the position of the push seat. Then the second negative pressure suction nozzle can perform suction work on the mesh manifold 9. Then, through the movement of the push cylinder, the mesh manifold 9 can be positioned in a predetermined position. Then the glue dispensing table 62 starts working, thereby performing conductive glue dispensing work on both ends of the core 8. At this time, with the movement of the push cylinder 51, the mesh manifold 9 can adhere to both ends of the core 8, completing the feeding work of the mesh manifold 9.

[0080] The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the specific details of the above embodiments. Within the scope of the technical concept of the present invention, various equivalent transformations can be made to the technical solutions of the present invention, and all such equivalent transformations fall within the protection scope of the present invention.

Claims

1. A large cylindrical battery end face formed by conductive copper paste casting, characterized in that, The utility model relates to a cylindrical battery, which comprises: a mesh current collector (9) arranged symmetrically at both ends of the cylindrical battery and fixed on the cylindrical battery by conductive adhesive, wherein a winding core (8) is arranged in the cylindrical battery; a conductive part (10) connected with the mesh current collector (9) and formed by pouring conductive paste; the conductive part (10) is provided with a recess, which is used to increase the conductivity of the cylindrical battery and is formed by stamping with an ultrasonic flattening machine; the mesh current collector (9) comprises a circular part and a convex part, the circular part is provided with a plurality of holes, and the conductive part (10) is connected with the circular part and matched with the part; in a top view of the cylindrical battery, the recess is located in the circular part of the mesh current collector (9).

2. A processing device for assembling the busbar (9) in the end face of the large cylindrical battery cast formed by the conductive copper paste as claimed in claim 1, forming a large cylindrical battery, characterized in that, The utility model relates to a cylindrical battery, which comprises: a workbench (1), a feeding mechanism (2) and a rejection mechanism (3) fixedly connected with the workbench (1), a battery adsorption unit (5) fixedly connected with the workbench (1) and used for advancing and adsorbing the flattened winding core (8), a carrying mechanism (4) fixedly connected with the workbench (1) and used for carrying the battery to the next work area, an assembly unit (6) fixedly installed on the workbench (1), and a discharging mechanism (7) fixedly connected with the workbench (1).

3. A processing apparatus according to claim 2, wherein: the battery adsorption unit (5) comprises a placement table (53) fixedly installed on the workbench (1), two advancing air cylinders (51) arranged symmetrically in the length direction of the placement table (53), an adapter (52) connected with the output end of the advancing air cylinder (51), and an adsorption part (54) connected with the adapter (52); the adsorption part (54) comprises an adsorption seat (541) connected with the adapter (52), a first adjusting part (542) located in the adsorption seat (541), a connecting pipe (543) connected with the first adjusting part (542), a second adjusting part (544) connected with the connecting pipe (543), and a plurality of output air cylinders for connecting the first adjusting part (542) and the adapter (52); the adapter (52) is provided with a gas hole, which is in communication with the first adjusting part (542); the connecting pipe (543) is circumferentially provided with a plurality of gas outlets.

4. A processing apparatus according to claim 3, wherein: the first adjusting part (542) comprises a first guide pipe (5422) and a sealing seat (5421) arranged in the adsorption seat (541), a first return spring (5425) for connecting the first guide pipe (5422) and the sealing seat (5421), a second guide pipe (5423) arranged in the first guide pipe (5422), and a second return spring (5424) for connecting the second guide pipe (5423) and the first guide pipe (5422); the second guide pipe (5423) is tapered at one end close to the connecting pipe (543) and gradually decreases in diameter, a clamping hole is formed in the first guide pipe (5422), and a clamping ball (5426) is arranged in the clamping hole; The first guide pipe (5422) is provided with a plurality of through holes in the circumferential direction near one end of the connecting pipe (543); The second guide pipe (5423) is provided with an annular protrusion in the circumferential direction away from one end of the second adjusting member (544), and one end of the second reset spring (5424) is in abutment with the annular protrusion.

5. A processing apparatus according to claim 4, wherein: The second adjusting member (544) comprises an air suction seat (5441) connected with the connecting pipe (543), a support pipe (5445) connected with the air suction seat (5441), a third reset spring (5446) located in the support pipe (5445), a push piston (5442) connected with the third reset spring (5446), a first cavity (5443) built-in in the air suction seat (5441), a plurality of second cavities (5444) in communication with the first cavity (5443) and surrounding the support pipe (5445) in the circumferential direction, an annular third cavity (5447) opened on the inner wall of the air suction seat (5441), and a communication channel for connecting the third cavity (5447) and the first cavity (5443); The air suction seat (5441) is provided with an air suction hole, and the outer wall of the support pipe (5445) and the inner wall of the air suction seat (5441) have a gap, and the air suction hole and the second cavities (5444) are in communication through the gap.

6. A processing apparatus according to claim 5, wherein: The assembly unit (6) comprises an assembly table (61) fixedly installed on the workbench (1), two dispensing tables (62) symmetrically arranged on the assembly table (61), two supports (64) connected with the workbench (1), and an electrode blanking assembly (63) connected with the support (64). The electrode blanking assembly (63) comprises a guide seat (631) located on the support (64), a guide column (633) arranged on the guide seat (631), a driving part (632) installed on the guide seat (631), a pressing block (636) in sliding connection with the guide column (633), an adsorption pushing piece (634) fixedly installed on the support (64), a connecting block (6322) connected with the guide column (633), a motor arranged on the connecting block (6322), a rotating block (635) connected with the motor output end, a first negative pressure adsorption nozzle arranged on the rotating block (635), an arrangement part (637) connected with the driving part (632), and a blanking part (638) arranged on the guide seat (631) and opposite to the arrangement part (637).

7. A processing apparatus according to claim 6, wherein: The driving part (632) comprises a telescopic cylinder (6321) fixedly installed on the guide seat (631), a connecting block (6322) connected with the output end of the telescopic cylinder (6321), a rack (6323) connected with the connecting block (6322) and slidingly connected with the guide seat (631), a first gear (6324) engaged with the rack (6323), a first double-shaft gear (6325) engaged with the first gear (6324), and a second double-shaft gear (6371) engaged with the first double-shaft gear (6325). The arranging part (637) is arranged on the second double-shaft gear (6371).

8. A processing apparatus according to claim 7, characterised in that: The arranging part (637) comprises a card (6372) between the second double-shaft gears (6371), a tooth (6373) abutting against the card (6372) and movably connected with the second double-shaft gears (6371), and a branch tooth (6374) connected with the tooth (6373). The tooth (6373) and the branch tooth (6374) have a curved area, and one end of the card (6372) is located in the curved area. The card (6372) is elastic, and through the working of the driving part (632), the second double-shaft gears (6371) are driven to rotate, thereby driving the tooth (6373) to move, so that the branch tooth (6374) abuts against the protruding part of the meshed busbar (9) and drives the meshed busbar (9) to rotate, so that the meshed busbar (9) falls into the discharging part (638) from the predetermined position, and the sorting and discharging work of the meshed busbar (9) is completed.

9. A processing apparatus according to claim 8, wherein: The discharging part (638) comprises a base (6385) fixedly installed on the guide seat (631), a power member connected with the base (6385), a plurality of supporting rollers (6386) connected with the base (6385), and a discharging frame (6384) arranged on the supporting rollers (6386). The discharging frame (6384) is provided with a groove matched with the meshed busbar (9).

10. A processing apparatus according to claim 9, wherein: The power member comprises a discharging motor (6381) fixedly installed on the base (6385), a transmission wheel set (6382) arranged on the base (6385), a belt (6383) connected with the transmission wheel set (6382) and the output end of the discharging motor (6381), and a discharging shaft (6387) connected with the transmission wheel set (6382). The discharging shaft (6387) is provided with a spiral groove in the circumferential direction.

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