A lithium battery steel shell shrinking device

Abstract

The present invention discloses a lithium battery steel shell shrinking device, which relates to the technical field of lithium battery production, and comprises a fixed round box, the inner wall of which is rotatably connected with a feed disc, the outer surface of which is provided with three slots adapted to the battery steel shell, and the bottom surface of which is fixedly connected with a drive motor, the output end of which is fixedly connected with the feed disc. The lithium battery steel shell shrinking device can distinguish the orientation of the battery steel shell opening, and enter the next process after confirming that the orientation of the battery steel shell is correct. At the same time, the device replaces manual identification and placement of the battery steel shell, which greatly reduces the labor intensity. At the same time, the battery steel shell is squeezed by the extrusion block of the punching machine, so that the battery steel shell moves downward and is inserted into the gap between the shrinking block and the positioning block, so that the outward-turned opening of the battery steel shell is squeezed and retracted, and the outward-turned situation of the battery steel shell is corrected by shrinking the opening.

Description

Technical Field

[0001] The invention relates to the technical field of lithium battery production, in particular to a lithium battery steel shell shrinking device. Background Art

[0002] Lithium batteries can be roughly divided into lithium metal batteries and lithium ion batteries. Lithium ion batteries do not contain metallic lithium and are rechargeable. Lithium metal batteries generally use manganese dioxide as the positive electrode material, metallic lithium or its alloy metal as the negative electrode material, and use non-aqueous electrolyte solutions. Nowadays, the requirements for lithium batteries such as light weight, durability, high voltage, high energy density and high safety are becoming higher and higher. Lithium batteries have great potential for application and expansion, especially in light electric vehicles, electric vehicles, and large-scale power storage industries.

[0003] During the lithium battery production process, the rolled battery core is placed in a stamped battery steel shell and the positive electrode is encapsulated. The battery steel shell raw material undergoes a cold stretching process and incision to form a battery steel shell. However, due to stress release, the opening of the incision will have an inverted "eight" shape turned outward, which will directly affect the inner and outer diameters of the shell opening of the battery steel shell, and then affect the assembly, fitting and welding of the negative electrode cover, making the subsequent production process of the lithium battery difficult to proceed smoothly.

[0004] After searching, the patent number CN109616590B discloses a lithium battery steel shell shrinking machine. The device can automatically complete the shrinking of the steel shell, greatly reducing the labor intensity, while saving space and improving the efficiency of shrinking. However, when the battery steel shell shrinking machine grabs the battery steel shell for shrinking work, the battery steel shell is stacked in a relatively chaotic manner, making it difficult for the battery steel shell shrinking machine to grab the battery steel shell for shrinking work, so that the production workshop needs to add special staff to stack the battery steel shell, resulting in a waste of labor and increasing the work intensity of the workers. At the same time, due to the chaotic storage, it is difficult for the battery steel shell shrinking machine to ensure that the steel shell opening is facing the processing area when grabbing the battery steel shell, making it difficult for the battery steel shell to perform subsequent shrinking work. To this end, we provide a lithium battery steel shell shrinking device to solve the above problems. Summary of the invention

[0005] The purpose of the present invention is to make up for the shortcomings of the prior art and provide a lithium battery steel shell shrinking device, comprising a fixed circular box, the inner wall of the fixed circular box is rotatably connected with a feed disc, the outer surface of the feed disc is provided with three slots adapted to the battery steel shell, the bottom surface of the fixed circular box is fixedly connected with a drive motor, and the output end of the drive motor is fixedly connected to the feed disc.

[0006] The lithium battery steel shell shrinking equipment also includes a shrinking mechanism, which is arranged on the outside of a fixed circular box, and the shrinking mechanism includes a collecting box, the bottom surface of the fixed circular box is fixedly connected to a transition plate, and a punch is arranged above the transition plate, and the punch is fixedly connected to the upper surface of the fixed circular box, and the output end of the punch is fixedly connected to an extrusion block, and the extrusion block of the punch passes through the fixed circular box and the transition plate in sequence, and the upper surface of the collecting box is fixedly connected to two bracket plates, and a fixed column is fixedly connected between the two bracket plates, and the outer surface of the fixed column is rotatably connected to two rotating plates, and two shrinking blocks are fixedly connected between the two rotating plates, and the inner bottom wall of the shrinking block is fixedly connected to a positioning block. Through the setting of the transition plate, the punch controls the extrusion block thereon to squeeze the battery steel shell to move downward, and the battery steel shell will pass through the transition plate when it moves downward, effectively avoiding the displacement of the battery steel shell when it moves, and at the same time ensuring that the battery steel shell can slide into the shrinking block when it moves downward.

[0007] The outer surface of the above-mentioned rotating plate is fixedly connected with gear 2, the outer surface of the bracket plate is fixedly connected with rotating motor 1, the output end of rotating motor 1 is fixedly connected with gear 1, the gear 1 is meshed with gear 2, the outer surface of the fixed column is fixedly connected with a protrusion, the outside of the necking block is provided with a pressure plate, the outer surface of the pressure plate is fixedly connected with three arc-shaped top plates, the three arc-shaped top plates all penetrate the outer surface of the necking block and are slidably connected with the necking block, a telescopic spring 1 is fixedly connected between the necking block and the pressure plate, after the opening of the battery steel shell is retracted, the gear 1 is controlled to rotate to drive the rotating plate to rotate, so that the necking block drives the internal battery steel shell to flip 180 degrees, and when the necking block flips, the pressure plate will be squeezed by the protrusion, so that the three arc-shaped top plates will push the battery steel shell in the necking block out into the collection box.

[0008] The lithium battery steel shell shrinking device also includes a detection mechanism, which is arranged below the fixed round box. The detection mechanism includes an electric telescopic rod, which is fixedly connected to the bottom surface of the fixed round box. The outer surface of the electric telescopic rod is fixedly connected with a sleeve, and the inner wall of the sleeve is slidably connected with a pressure sensor. A second telescopic spring is arranged inside the sleeve, and the second telescopic spring is fixedly connected between the pressure sensor and the sleeve. The telescopic end of the electric telescopic rod is fixedly connected with an ejection block. The bottom surface of the fixed round box is provided with a through hole adapted to the ejection block, and a discharge pipe is arranged above the electric telescopic rod. The discharge pipe is fixedly connected to the upper surface of the fixed round box, and two symmetrical straight-through grooves are provided on the outer surface of the discharge pipe. A wedge block is fixedly connected to the outer surface of the discharge pipe. Through the setting of the wedge block, when the conveyor belt rotates and drives the intercepting rod in the connecting block to approach the wedge block, the inclination of the wedge block will continue to squeeze the intercepting rod so that the intercepting rod is retracted into the square tube. The conveyor belt drives the intercepting rod to continue to move, and the intercepting rod will move into the straight-through groove. At this time, the intercepting rod will be ejected by the spring pressure of the telescopic spring three, and the intercepting rod will push the battery steel shell pushed out by the electric telescopic rod. The intercepting rod continues to move to move the conveying battery steel shell obliquely upward.

[0009] The lithium battery steel shell shrinking equipment also includes a conveying mechanism, which is arranged above the fixed round box. The conveying mechanism includes a conveyor belt and two electric pulleys. The two electric pulleys are fixedly connected to the upper surface of the fixed round box, and the two electric pulleys are connected through a conveyor belt transmission. Nine groups of connecting blocks are fixedly connected to the outer surface of the conveyor belt, and the number of connecting blocks in each group is two and symmetrical to each other. The outer surface of the connecting block is fixedly connected to a square tube, and the inner wall of the square tube is slidably connected to an intercepting rod, and a telescopic spring three is fixedly connected between the outer surface of the intercepting rod and the bottom surface of the square tube.

[0010] The lithium battery steel shell shrinking equipment also includes a feeding mechanism, which is arranged above the fixed round box, and the feeding mechanism includes a hopper, a connecting pipe is fixedly connected to the bottom of the hopper, and a discharging cylinder is fixedly connected to the outer surface of the fixed round box. The outer surface of the conveyor belt is fixedly connected to two groups of limit blocks, the outer surface of the hopper is fixedly connected to an arc-shaped anti-falling plate, and the outer surface of the connecting pipe is fixedly connected to a connecting channel. The outer surface of the connecting channel is provided with a groove for the intercepting rod to pass through. Through the setting of the arc-shaped anti-falling plate, when the battery steel shell is transported on the conveyor belt, the arc-shaped anti-falling plate effectively prevents the battery steel shell from falling to the outside during the transportation process. Through the setting of the connecting channel, the transported battery steel shell will slide into the connecting pipe through the connecting channel and fall directly into the discharging cylinder.

[0011] Furthermore, the outer surface of the feed hopper is fixedly connected to a rotating motor 2, the output end of the rotating motor 2 is fixedly connected to a feed plate, the feed plate is rotatably connected to the inner wall of the feed hopper, the inner wall of the feed hopper is fixedly connected to two inclined plates, the inner top wall of the material dispensing barrel is fixedly connected to a circular slide rail, the inner wall of the circular slide rail is rotatably connected to a gear ring, the bottom surface of the gear ring is fixedly connected to three material dispensing rods, the outer surface of the material dispensing barrel is fixedly connected to a rotating motor 3, the output end of the rotating motor 3 is fixedly connected to a gear 3, the gear 3 is meshed with the gear ring, and the rotating motor 3 is controlled to drive the gear 3 to rotate. The rotation of the gear 3 drives the three material dispensing rods to rotate and dispensing the battery steel shell in the material dispensing barrel through the gear ring, so that the battery steel shell is dispensing to a vertical state and slides into the slot of the feed disc.

[0012] Compared with the existing technology, the lithium battery steel shell shrinking equipment has the following beneficial effects:

[0013] 1. The present invention is provided with a detection mechanism, a conveying mechanism and a feeding mechanism. When the feeding disc drives the battery steel shell to rotate and pass through the pressure sensor, if the opening of the battery steel shell faces upward, the closed opening of the battery steel shell will continue to press the pressure sensor. The pressure sensor will be fed back to the electric telescopic rod by the pressure induction. After the battery steel shell moves to just above the electric telescopic rod, the electric telescopic rod will press the closed opening of the battery steel shell to make the battery steel shell enter the discharge pipe, and drive the intercepting rod to move the battery steel shell to the connecting channel through the rotation of the conveyor belt. The battery steel shell will fall into the material-pickup barrel and slide into the card slot of the feeding disc. This cycle is repeated until the opening of the battery steel shell faces downward and passes through the pressure sensor. The pressure sensor is ejected upward by the spring pressure of the telescopic spring 2 and the signal is fed back to the electric telescopic rod. The electric telescopic rod no longer lifts the battery steel shell, so that the battery steel shell is conveyed to the top of the transition plate to wait for shrinking, so that the device can distinguish the direction of the battery steel shell opening, and enter the next process after confirming that the battery steel shell is in the correct direction. At the same time, the device replaces manual identification and placement of the battery steel shell, which greatly reduces the labor intensity.

[0014] 2. The present invention is provided with a shrinking mechanism. After the battery steel shell moves to the bottom of the punching machine, the extrusion block of the punching machine will squeeze the battery steel shell, so that the battery steel shell moves downward and is inserted into the gap between the shrinking block and the positioning block, so that the outward-turned opening of the battery steel shell is squeezed and retracted, and the outward-turned situation of the battery steel shell is corrected by shrinking the opening. After the inward retraction of the battery steel shell opening is completed, the control gear is rotated to drive the rotating plate to rotate, so that the shrinking block drives the internal battery steel shell to flip 180 degrees. When the shrinking block flips, the pressure plate will be squeezed by the protrusion, so that the three arc-shaped top plates will push the battery steel shell in the shrinking block out into the collection box, completing the collection of the battery steel shell, so that the subsequent production process of the battery steel shell can be carried out smoothly, conveniently and quickly.

[0015] Other advantages, objectives and features of the present invention will be set forth in part in the following description and, in part, will be apparent to those skilled in the art based on an examination of the following or may be taught from the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 The three-dimensional structure of the present invention is viewed from the front Figure 1 ;

[0017] Figure 2 The three-dimensional structure of the present invention is viewed from the front Figure 2 ;

[0018] Figure 3 It is a schematic diagram of the three-dimensional structure of the interior of the fixed round box of the present invention;

[0019] Figure 4 It is a three-dimensional structural schematic diagram of the necking mechanism of the present invention;

[0020] Figure 5 It is a schematic diagram of the split structure of the necking mechanism of the present invention;

[0021] Figure 6 It is a schematic diagram of the three-dimensional structure inside the necking block of the present invention;

[0022] Figure 7 It is a schematic diagram of the three-dimensional structure of the linkage of the detection mechanism, the conveying mechanism and the feeding mechanism of the present invention;

[0023] Figure 8 It is a three-dimensional structural schematic diagram of the detection mechanism of the present invention;

[0024] Fig. 9 It is a schematic diagram of the three-dimensional structure of the discharge pipe of the present invention;

[0025] Fig.10 It is a schematic diagram of the split structure of the conveying mechanism of the present invention;

[0026] Fig.11 It is a schematic diagram of the three-dimensional structure inside the square tube of the present invention;

[0027] Fig.12 It is a schematic diagram of the three-dimensional structure inside the feeding hopper of the present invention;

[0028] Fig.13 It is a schematic diagram of the three-dimensional structure inside the material displacing barrel of the present invention.

[0029] In the figure:

[0030] 1. Fixed round box; 2. Driving motor; 3. Feeding disc;

[0031] 4. Narrowing mechanism; 401. Punching machine; 402. Collecting box; 403. Bracket plate; 404. Fixing column; 405. Protrusion; 406. Rotating motor 1; 407. Gear 1; 408. Rotating plate; 409. Gear 2; 410. Narrowing block; 411. Positioning block; 412. Pressure plate; 413. Arc top plate; 414. Telescopic spring 1; 415. Transition plate;

[0032] 5. Detection mechanism; 501. Electric telescopic rod; 502. Sleeve; 503. Pressure sensor; 504. Telescopic spring 2; 505. Discharge pipe; 506. Straight-through slot; 507. Wedge block;

[0033] 6. Conveying mechanism; 601. Electric pulley; 602. Conveying belt; 603. Limiting block; 604. Connecting block; 605. Square tube; 606. Intercepting rod; 607. Telescopic spring three; 608. Arc-shaped anti-falling plate; 609. Connecting channel;

[0034] 7. Feeding mechanism; 701. Feeding hopper; 702. Rotating motor 2; 703. Feeding plate; 704. Inclined plate; 705. Connecting pipe; 706. Feeding cylinder; 707. Circular slide rail; 708. Gear ring; 709. Feeding rod; 710. Rotating motor 3; 711. Gear 3. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0036] See also Figure 1 , Figure 2 and Figure 3 The present invention provides a technical solution: a lithium battery steel shell shrinking device, comprising a fixed round box 1, the inner wall of the fixed round box 1 is rotatably connected with a feed disc 3, the outer surface of the feed disc 3 is provided with three slots adapted to the battery steel shell, the bottom surface of the fixed round box 1 is fixedly connected with a drive motor 2, and the output end of the drive motor 2 is fixedly connected to the feed disc 3.

[0037] See also Figure 4 , Figure 5 and Figure 6A shrinking mechanism 4 is arranged on the outside of the fixed round box 1, and the shrinking mechanism 4 includes a collecting box 402. A transition plate 415 is fixedly connected to the bottom surface of the fixed round box 1, and a punch 401 is arranged above the transition plate 415. The punch 401 is fixedly connected to the upper surface of the fixed round box 1, and an extrusion block is fixedly connected to the output end of the punch 401. The extrusion block of the punch 401 passes through the fixed round box 1 and the transition plate 415 in sequence. Through the setting of the transition plate 415, the punch 401 controls the extrusion block thereon to squeeze the battery steel shell to move downward. The battery steel shell moves downward and will pass through the transition plate 415, which effectively avoids the displacement of the battery steel shell when it moves, and at the same time ensures that the battery steel shell can slide into the shrinking block 410 when it moves downward.

[0038] The upper surface of the collecting box 402 is fixedly connected to two bracket plates 403, a fixed column 404 is fixedly connected between the two bracket plates 403, the outer surface of the fixed column 404 is rotatably connected to two rotating plates 408, two shrinking blocks 410 are fixedly connected between the two rotating plates 408, a positioning block 411 is fixedly connected to the inner bottom wall of the shrinking block 410, a gear 2 409 is fixedly connected to the outer surface of the rotating plate 408, a rotating motor 1 406 is fixedly connected to the outer surface of the bracket plate 403, and the rotating motor 1 406 The output end is fixedly connected with a gear 1 407, which meshes with a gear 2 409. The outer surface of the fixed column 404 is fixedly connected with a protrusion 405. After the opening of the battery steel shell is retracted, the gear 1 407 is controlled to rotate to drive the rotating plate 408 to rotate, so that the shrinking block 410 drives the internal battery steel shell to flip 180 degrees. When the shrinking block 410 flips, the pressure plate 412 will be squeezed by the protrusion 405, so that the three arc-shaped top plates 413 will push the battery steel shell in the shrinking block 410 out into the collection box 402.

[0039] A pressure plate 412 is provided on the outside of the necking block 410, and three arc-shaped top plates 413 are fixedly connected to the outer surface of the pressure plate 412. The three arc-shaped top plates 413 all penetrate the outer surface of the necking block 410 and are slidably connected to the necking block 410. A telescopic spring 414 is fixedly connected between the necking block 410 and the pressure plate 412. Through the setting of the telescopic spring 414, after the pressure plate 412 is no longer squeezed by the protrusion 405, the pressure plate 412 will be reset by the spring pressure of the telescopic spring 414, so that the arc-shaped top plates 413 are no longer located inside the necking block 410.

[0040] See also Figure 7 , Figure 8 and Fig. 9A detection mechanism 5 is provided below the fixed round box 1. The detection mechanism 5 includes an electric telescopic rod 501, which is fixedly connected to the bottom surface of the fixed round box 1. A sleeve 502 is fixedly connected to the outer surface of the electric telescopic rod 501. A pressure sensor 503 is slidably connected to the inner wall of the sleeve 502. A telescopic spring 504 is provided inside the sleeve 502. The telescopic spring 504 is fixedly connected between the pressure sensor 503 and the sleeve 502. The telescopic end of the electric telescopic rod 501 is fixedly connected to an ejection block. A through hole matching the ejection block is provided on the bottom surface of the fixed round box 1. A discharge pipe 505 is provided above the electric telescopic rod 501. The discharge pipe 505 is fixedly connected to the upper surface of the fixed round box 1. The discharge pipe 50 5 is provided with two symmetrical straight-through grooves 506, and the outer surface of the discharge pipe 505 is fixedly connected with a wedge block 507. Through the setting of the wedge block 507, the conveyor belt 602 rotates to drive the interception rod 606 in the connecting block 604 to approach the wedge block 507. Due to the inclination of the wedge block 507, the interception rod 606 will continue to be squeezed to retract the interception rod 606 into the square tube 605. The conveyor belt 602 drives the interception rod 606 to continue to move, and the interception rod 606 will move into the straight-through groove 506. At this time, the interception rod 606 will be ejected by the spring pressure of the telescopic spring 3 607, and the interception rod 606 will push the battery steel shell pushed out by the electric telescopic rod 501. The interception rod 606 continues to move to move the conveyed battery steel shell obliquely upward.

[0041] See also Fig.10 and Fig.11 A conveying mechanism 6 is arranged above the fixed round box 1. The conveying mechanism 6 includes a conveyor belt 602 and two electric pulleys 601. The two electric pulleys 601 are fixedly connected to the upper surface of the fixed round box 1. The two electric pulleys 601 are connected through the conveyor belt 602. Nine groups of connecting blocks 604 are fixedly connected to the outer surface of the conveyor belt 602. The number of each group of connecting blocks 604 is two and they are symmetrical to each other. The outer surface of the connecting block 604 is fixedly connected to a square tube 605. The inner wall of the square tube 605 is slidably connected to an intercepting rod 606. A telescopic spring three 607 is fixedly connected between the outer surface of the intercepting rod 606 and the bottom surface of the square tube 605.

[0042] See also Fig.12 and Fig.13A feeding mechanism 7 is arranged above the fixed round box 1, and the feeding mechanism 7 includes a hopper 701, a connecting pipe 705 is fixedly connected below the hopper 701, and a material-displacing cylinder 706 is fixedly connected below the connecting pipe 705, and the material-displacing cylinder 706 is fixedly connected to the outer surface of the fixed round box 1, and two sets of limit blocks 603 are fixedly connected to the outer surface of the conveyor belt 602. An arc-shaped anti-falling plate 608 is fixedly connected to the outer surface of the hopper 701, and a connecting channel 609 is fixedly connected to the outer surface of the connecting pipe 705. The outer surface of the connecting channel 609 is provided with a groove for the intercepting rod 606 to pass through. Through the setting of the arc-shaped anti-falling plate 608, when the battery steel shell is transported on the conveyor belt 602, the arc-shaped anti-falling plate 608 effectively prevents the battery steel shell from falling to the outside during the transportation process. Through the setting of the connecting channel 609, the transported battery steel shell will slide into the connecting pipe 705 through the connecting channel 609 and fall directly into the material-displacing cylinder 706.

[0043] The outer surface of the feed hopper 701 is fixedly connected to a rotating motor 702, and the output end of the rotating motor 702 is fixedly connected to a feed plate 703. The feed plate 703 is rotatably connected to the inner wall of the feed hopper 701, and the inner wall of the feed hopper 701 is fixedly connected to two inclined plates 704. Multiple battery steel shells are stacked horizontally in the feed hopper 701, and the rotating motor 702 is controlled to drive the feed plate 703 to rotate. The rotation of the feed plate 703 will transport the battery steel shells in the feed hopper 701 to the connecting pipe 705 through the slot of the feed plate 703, and make the battery steel shells fall into the discharging barrel 706. The setting of the feed plate 703 will slow down the feeding speed of the battery steel shells in the feed hopper 701, effectively avoiding the problem of excessive battery steel shells entering the discharging barrel 706 and causing blockage.

[0044] The inner top wall of the material dispensing barrel 706 is fixedly connected with a circular slide rail 707, the inner wall of the circular slide rail 707 is rotatably connected with a gear ring 708, the bottom surface of the gear ring 708 is fixedly connected with three material dispensing rods 709, the outer surface of the material dispensing barrel 706 is fixedly connected with a rotating motor 3 710, the output end of the rotating motor 3 710 is fixedly connected with a gear 3 711, the gear 3 711 is meshed with the gear ring 708, and the rotating motor 3 710 is controlled to drive the gear 3 711 to rotate, and the gear 3 711 rotates through the gear ring 708 to drive the three material dispensing rods 709 to rotate and dispensing the battery steel shell in the material dispensing barrel 706, so that the battery steel shell is moved to a vertical state and slides into the slot of the feed disc 3.

[0045] Working principle: multiple battery steel shells are stacked horizontally in the feed hopper 701, and the rotating motor 2 702 is controlled to drive the feed plate 703 to rotate. The rotation of the feed plate 703 will transport the battery steel shells in the feed hopper 701 to the connecting pipe 705 through the slot of the feed plate 703, and make the battery steel shells fall into the material dispensing barrel 706. The rotating motor 3 710 is controlled to drive the gear 3 711 to rotate. The gear 3 711 rotates through the gear ring 708 to drive the three material dispensing rods 709 to rotate and dispensing the battery steel shells in the material dispensing barrel 706, so that the battery steel shells are dispensing to a vertical state and slide into the slot of the feeding disc 3.

[0046] The driving motor 2 is controlled to drive the feeding disc 3 to rotate so that the battery steel shell rotates and passes through the pressure sensor 503. If the opening of the battery steel shell is facing upward at this time, the closed end of the battery steel shell will continue to press the pressure sensor 503. The pressure sensor 503 will be fed back to the electric telescopic rod 501 by the pressure induction. After the battery steel shell moves to the top of the electric telescopic rod 501, the electric telescopic rod 501 will press the closed end of the battery steel shell to make the battery steel shell enter the discharge pipe 505, and drive the intercepting rod 606 to move the battery steel shell to the connecting channel 609 through the rotation of the conveyor belt 602. The battery steel shell will fall into the material displacing barrel 706 and slide into the card slot of the feeding disc 3. This cycle is repeated until the opening of the battery steel shell passes through the pressure sensor 503 with the opening facing downward. The pressure sensor 503 is ejected upward by the spring pressure of the telescopic spring 2 504 and the signal is fed back to the electric telescopic rod 501, and the electric telescopic rod 501 no longer lifts the battery steel shell.

[0047] After the battery steel shell is conveyed to the top of the transition plate 415, the extrusion block of the punching machine 401 is controlled to extrude the battery steel shell, so that the battery steel shell moves downward and is inserted into the gap between the shrinking block 410 and the positioning block 411, so that the outward-turned opening of the battery steel shell is squeezed and retracted, and the outward-turned situation of the battery steel shell is corrected by shrinking the opening. After the inward retraction of the battery steel shell opening is completed, the gear 1 407 is controlled to rotate to drive the rotating plate 408 to rotate, so that the shrinking block 410 drives the internal battery steel shell to flip 180 degrees. When the shrinking block 410 flips, the pressure plate 412 will be squeezed by the protrusion 405, so that the three arc-shaped top plates 413 will push the battery steel shell in the shrinking block 410 out into the collection box 402, completing the collection of the battery steel shell, so that the subsequent production process of the battery steel shell can proceed smoothly.

[0048] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

Claims

1. A lithium battery steel shell shrinking device, characterized in that: include: A fixed round box (1), the inner wall of which is rotatably connected to a feed disc (3), the outer surface of which is provided with three slots adapted to the battery steel shell, the bottom surface of which is fixedly connected to a drive motor (2), the output end of which is fixedly connected to the feed disc (3); A shrinking mechanism (4), the shrinking mechanism (4) being arranged outside the fixed round box (1), the shrinking mechanism (4) comprising a collection box (402), the upper surface of the collection box (402) being fixedly connected to two support plates (403), a fixed column (404) being fixedly connected between the two support plates (403), the outer surface of the fixed column (404) being rotatably connected to two rotating plates (408), two shrinking blocks (410) being fixedly connected between the two rotating plates (408), and a positioning block (411) being fixedly connected to the inner bottom wall of the shrinking block (410); A detection mechanism (5), the detection mechanism (5) being arranged below the fixed round box (1), the detection mechanism (5) comprising an electric telescopic rod (501), the electric telescopic rod (501) being fixedly connected to the bottom surface of the fixed round box (1), a sleeve (502) being fixedly connected to the outer surface of the electric telescopic rod (501), a pressure sensor (503) being slidably connected to the inner wall of the sleeve (502), a second telescopic spring (504) being arranged inside the sleeve (502), and the second telescopic spring (504) being fixedly connected between the pressure sensor (503) and the sleeve (502); A conveying mechanism (6), the conveying mechanism (6) being arranged above the fixed round box (1), the conveying mechanism (6) comprising a conveying belt (602) and two electric pulleys (601), the two electric pulleys (601) being fixedly connected to the upper surface of the fixed round box (1), the two electric pulleys (601) being connected in transmission via the conveying belt (602), the outer surface of the conveying belt (602) being fixedly connected with nine groups of connecting blocks (604), the number of each group of connecting blocks (604) being two and symmetrical to each other, the outer surfaces of the connecting blocks (604) being fixedly connected with a square tube (605), the inner wall of the square tube (605) being slidably connected with an intercepting rod (606), and a telescopic spring (607) being fixedly connected between the outer surface of the intercepting rod (606) and the bottom surface of the square tube (605); A feeding mechanism (7), the feeding mechanism (7) being arranged above the fixed circular box (1), the feeding mechanism (7) comprising a feeding hopper (701), a connecting pipe (705) being fixedly connected below the feeding hopper (701), a material shifting cylinder (706) being fixedly connected below the connecting pipe (705), and the material shifting cylinder (706) being fixedly connected to the outer surface of the fixed circular box (1).

2. A lithium battery steel shell shrinking device according to claim 1, characterized in that: A transition plate (415) is fixedly connected to the bottom surface of the fixed round box (1), a punch (401) is arranged above the transition plate (415), the punch (401) is fixedly connected to the upper surface of the fixed round box (1), an output end of the punch (401) is fixedly connected to an extrusion block, and the extrusion block of the punch (401) passes through the fixed round box (1) and the transition plate (415) in sequence.

3. A lithium battery steel shell shrinking device according to claim 1, characterized in that: The outer surface of the rotating plate (408) is fixedly connected to a gear 2 (409), the outer surface of the bracket plate (403) is fixedly connected to a rotating motor 1 (406), the output end of the rotating motor 1 (406) is fixedly connected to a gear 1 (407), the gear 1 (407) is meshed with the gear 2 (409), and the outer surface of the fixing column (404) is fixedly connected to a protrusion (405).

4. A lithium battery steel shell shrinking device according to claim 1, characterized in that: A pressure plate (412) is arranged outside the necking block (410), and three arc-shaped top plates (413) are fixedly connected to the outer surface of the pressure plate (412). The three arc-shaped top plates (413) all penetrate the outer surface of the necking block (410) and are slidably connected to the necking block (410), and a telescopic spring (414) is fixedly connected between the necking block (410) and the pressure plate (412).

5. The lithium battery steel shell shrinking device according to claim 1, characterized in that: The telescopic end of the electric telescopic rod (501) is fixedly connected to an ejection block, the bottom surface of the fixed round box (1) is provided with a through hole matched with the ejection block, a discharge pipe (505) is arranged above the electric telescopic rod (501), the discharge pipe (505) is fixedly connected to the upper surface of the fixed round box (1), the outer surface of the discharge pipe (505) is provided with two symmetrical straight-through grooves (506), and the outer surface of the discharge pipe (505) is fixedly connected to a wedge block (507).

6. The lithium battery steel shell shrinking device according to claim 1, characterized in that: The outer surface of the conveyor belt (602) is fixedly connected to two groups of limit blocks (603), the outer surface of the feed hopper (701) is fixedly connected to an arc-shaped anti-falling plate (608), and the outer surface of the connecting pipe (705) is fixedly connected to a connecting channel (609), and the outer surface of the connecting channel (609) is provided with a slot for the interception rod (606) to pass through.

7. The lithium battery steel shell shrinking device according to claim 1, characterized in that: The outer surface of the feed hopper (701) is fixedly connected to a second rotating motor (702), the output end of the second rotating motor (702) is fixedly connected to a feed plate (703), the feed plate (703) is rotatably connected to the inner wall of the feed hopper (701), and the inner wall of the feed hopper (701) is fixedly connected to two inclined plates (704).

8. The lithium battery steel shell shrinking device according to claim 1, characterized in that: The inner top wall of the material dispensing barrel (706) is fixedly connected to a circular slide rail (707), the inner wall of the circular slide rail (707) is rotatably connected to a gear ring (708), the bottom surface of the gear ring (708) is fixedly connected to three material dispensing rods (709), the outer surface of the material dispensing barrel (706) is fixedly connected to a rotating motor three (710), the output end of the rotating motor three (710) is fixedly connected to a gear three (711), and the gear three (711) is meshed with the gear ring (708).

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