Full-automatic lithium ion battery button type shell stamping forming equipment

Abstract

The utility model discloses full -automatic lithium ion battery button type shell punch forming equipment, it includes the machine case and sets up the PLC control device for controlling the operation of equipment in the machine case, sets up the material belt feeding unit, shearing unit, punch shell forming unit, intelligent identification unit and accurate cutting blanking unit along the processing technology and sets gradually, the utility model discloses a plurality of functional units such as material belt feeding, precision shearing, punch shell forming, intelligent identification, accurate cutting blanking are integrated in one, and by PLC control device carries out unified coordination control, realizes from the full -automatic, uninterrupted continuous production of the finished product shell from the material roll, eliminates the manual transfer and waiting time between the process in traditional mode, and production rhythm is compact and smooth, and the overall production efficiency obtains the order of magnitude promotion.

Description

Technical Field

[0001] This utility model relates to the field of lithium-ion production equipment technology, and in particular to a fully automatic lithium-ion battery button casing stamping and forming equipment. Background Technology

[0002] In the lithium-ion battery manufacturing industry, the button cell casing is a key component, and its production quality directly affects the battery's sealing performance, safety, and overall performance. Traditional button cell casing production often employs a single-machine, step-by-step processing model. For example, material strips are first cut into sheets manually, then marked using inkjet printing equipment, and finally formed using stamping equipment. This model has the following main drawbacks: 1. Fragmented processes: Equipment at each stage operates independently, lacking coordination, resulting in long production cycles and low overall efficiency. The need for manual transfer of semi-finished products during production increases labor intensity and the risk of human error.

[0003] 2. Insufficient processing precision and low product qualification rate: During the production process, especially in the material conveying and sheet positioning stages, there is a heavy reliance on manual intervention. This not only easily leads to inconsistent sheet sizes and inaccurate stamping positioning due to human error, resulting in poor shell appearance and out-of-tolerance dimensional accuracy, but also results in a high product scrap rate, increasing production costs.

[0004] 3. Low level of intelligence and automation, and lack of information management: Traditional inkjet printing and scanning processes usually require secondary positioning. That is, after the stamping and forming is completed, the shell needs to be repositioned to achieve accurate inkjet printing and subsequent scanning recognition. This repetitive positioning process not only increases production time, but also leads to a recognition error rate as high as 3%-5%, resulting in poor reliability of the product quality traceability system and the inability to achieve real-time and accurate management of production data.

[0005] Therefore, there is an urgent need in this field for a new type of button cell casing production equipment that can integrate all key processes, achieve fully automated continuous production, and significantly improve processing accuracy and intelligent management. Utility Model Content

[0006] The purpose of this invention is to provide a fully automatic lithium-ion battery button casing stamping and forming equipment to solve the problems of scattered processes, insufficient precision and lack of intelligence in traditional production.

[0007] The technical solution of this utility model is as follows: a fully automatic lithium-ion battery button casing stamping and forming equipment, comprising: a chassis and a PLC control device disposed in the chassis for controlling the operation of the equipment, characterized in that the PLC is disposed in the chassis and arranged sequentially along the processing technology. The material belt feeding unit is used to place and convey the material belt. It includes a constant tension unwinding shaft, a servo correction component that drives the position of the constant tension unwinding shaft, a detection component that detects the material belt offset and feeds it back to the servo correction component for correction, and a tension control component that guides, presses, and adjusts the tension of the material belt. The shearing unit is used to cut the strip into sheets of a set size. It includes a feeding moving module, a suction plate on the feeding moving module, a slitting component for cutting the strip on the suction plate into equal parts, a positioning pressure plate on the lower side of the cutting component and cooperating with the suction plate to press the strip, and a pressing component to prevent the strip from moving backward when the slitting component cuts. The suction plate and the positioning pressure plate are provided with cutting grooves at equal intervals that correspond to the cutters on the slitting component. Limit adjustment blocks are provided on both sides of the suction plate, and the limit adjustment blocks on both sides form a guide channel so that the strip moves along the guide channel. A shell forming unit is used to stamp sheet material into a shell. It includes a hydraulic stamping system for stamping sheet material and a translation conveying assembly for feeding sheet material from a suction plate to the hydraulic stamping system. The intelligent identification unit is used to print and scan QR codes on the housing. It includes an inkjet printer, a barcode scanner, and a transfer robot for gripping the housing in the hydraulic stamping system and sending it to the inkjet printer and barcode scanner for printing and scanning QR codes. The precision cutting unit is used to cut burrs on the housing and stamp the housing into shape. It includes a cutting die, a cutting robot for feeding and unloading, and a receiving bin.

[0008] Furthermore, the servo correction component includes a guide rail assembly, a slide table mounted on the guide rail assembly, and a servo lead screw cylinder that drives the slide table and is electrically connected to the detection component. The slide table is equipped with a mounting bracket, and the constant tension unwinding shaft is rotatably mounted on the mounting bracket via bearings. The mounting bracket is equipped with a drive motor, and the output shaft of the drive motor is keyed to an active synchronous pulley. One end of the constant tension unwinding shaft is equipped with a driven synchronous pulley, and the driven synchronous pulley and the active synchronous pulley are connected by a drive synchronous belt.

[0009] Furthermore, the detection component includes a linear slide rail and a movable connecting plate that slides on the linear slide rail. One end of the movable connecting plate is provided with a U-shaped block for the material belt to pass through. The U-shaped block is provided with a laser sensor for detecting the material belt. The other end of the movable connecting plate is provided with an adjusting screw that is threaded to the movable connecting plate and fixed to the machine box by a fixing block. A guide roller is provided on the side of the U-shaped block, and the guide roller pulls the material belt through the U-shaped block.

[0010] Furthermore, the tension control assembly includes a vertical plate, which is equipped with a pressing mechanism. Multiple first material strip guide rollers are provided on both sides of the pressing mechanism. A vertical guide rail is provided on the vertical plate to the side of the pressing mechanism. A gravity slider is slidably mounted on the vertical guide rail. Two second material strip guide rollers at the same horizontal plane are provided on the gravity slider. A mounting plate parallel to the vertical guide rail is provided on the vertical plate to the side of the vertical guide rail. Multiple sensors are provided on the mounting plate from top to bottom, and a sensing plate that senses the sensors is provided on the side of the gravity slider. The pressing mechanism includes a vertical support plate perpendicular to the vertical plate, and slide rods are symmetrically slidably arranged on both sides of the vertical support plate. The upper end of the slide rods is provided with a pressure plate for pressing the material strip, and the lower end of the slide rods is provided with a limiting plate. The bottom surface of the vertical support plate is provided with a first telescopic cylinder whose output end is connected to the limiting plate.

[0011] Furthermore, the suction plate is divided into multiple material distribution areas by the cutting groove, and each material distribution area is provided with mounting holes, and a suction nozzle is provided in the mounting holes; the bottom of the suction plate is provided with a support base connected to the feeding moving module, and lifting guide rods connected to the limit adjustment blocks are symmetrically provided on both sides of the support base. The feeding moving module is provided with a guide slide cylinder movably connected to each lifting guide rod, and lifting cylinders that drive the limit adjustment blocks to rise and fall are symmetrically provided on both sides of the support base; an extension plate is fixed on one side of the suction plate, the extension plate extends toward the pressing assembly, and the upper surface of the extension plate is flush with the upper surface of the suction plate.

[0012] Furthermore, support rods are provided on both sides of the positioning plate. The support rods move through the worktable of the machine box. The positioning plate is positioned above the suction plate and below the slitting component by the support rods. A first push plate is provided at the bottom of the support rods, and a second telescopic cylinder with its output end connected to the first push plate is provided on the bottom surface of the worktable. The first push plate is driven by the second telescopic cylinder, so that the support rods pull the positioning plate down to cooperate with the suction plate to press the material.

[0013] Furthermore, the slitting assembly includes two support platforms spaced apart. The upper surfaces of the two support platforms are provided with horizontal guide rails, and a blade holder slides on the horizontal guide rails. The blade holder is provided with cutters at equal intervals, and each cutter corresponds to a cutting groove on the positioning plate. One of the support platforms is provided with a rodless cylinder that drives the blade holder to move so that the cutter can cut. Vertical slide rods that move through the worktable are provided on both sides of the two support platforms. A second push plate is provided at the bottom of the vertical slide rods, and a third telescopic cylinder whose output end is connected to the second push plate is provided on the bottom surface of the worktable.

[0014] Furthermore, the pressing assembly includes a lifting frame for lifting the material belt and a lifting cylinder mounted on the feeding moving module to drive the lifting frame to rise and fall; it also includes a pressing plate that cooperates with the lifting frame to press the material belt, with guide vertical rods on both sides of the pressing plate that move through the worktable of the machine box, a third push plate at the bottom of the guide vertical rods, and a fourth telescopic cylinder with its output end connected to the third push plate on the bottom surface of the worktable; and pressing blocks with adjustable spacing on both sides of the bottom of the pressing plate, with elastic pressing blocks on the bottom surface of the pressing blocks that contact the material belt.

[0015] Furthermore, the translational conveying assembly includes an X-axis moving module and an X-axis adjusting moving module disposed on the X-axis moving module. The X-axis adjusting moving module is provided with multiple Z-axis slide cylinders at equal intervals. Each Z-axis slide cylinder is provided with a horizontal suction plate, and each horizontal suction plate is provided with a first suction cup on its bottom surface.

[0016] Furthermore, the unloading robot includes a horizontal guide rail assembly and a material handling and unloading / removing assembly respectively disposed on the horizontal guide rail assembly; the material handling and moving assembly is used to pick up the shell on the transfer robot and transport it to the blanking die, and a waste recycling hopper is provided on one side of the material handling and moving assembly; the unloading / removing assembly is used to pick up the shell inside the blanking die and transport it to the receiving bin; both the material handling and moving assembly and the unloading / removing assembly include a moving bracket and a lifting drive component disposed on the moving bracket and a lifting connecting plate driven by the lifting drive component to lift and lower, a second suction cup is provided on the bottom surface of the lifting connecting plate, and a motor screw drive assembly is provided on the chassis to drive the moving bracket of the material handling and moving assembly to move; a push cylinder is provided on the moving bracket of the material handling and moving assembly to drive the moving bracket of the unloading / removing assembly to move.

[0017] Compared with the prior art, the fully automatic lithium-ion battery button casing stamping equipment provided by the present invention has the following significant advantages: 1. It achieves highly integrated and automated continuous production, greatly improving production efficiency. This utility model integrates multiple functional units such as material feeding, precision cutting, shell forming, intelligent marking, and precision cutting into one unit, and coordinates and controls them in a unified manner by a PLC control device. It realizes fully automatic and uninterrupted continuous production from roll material to finished shell, eliminating the manual transfer and waiting time between processes in the traditional mode. The production cycle is compact and smooth, and the overall production efficiency is improved by orders of magnitude.

[0018] 2. A sophisticated correction, positioning, and tension control system ensures extremely high processing accuracy and product consistency. In the material feeding unit, closed-loop feedback from servo correction and detection components dynamically corrects material deviation in real time. The tension control component ensures constant tension of the material during transport. This guarantees precise and stable material positioning from the outset. In the shearing unit, the cooperation between the suction plate and positioning pressure plate, the guide channel formed by the limit adjustment block, and the anti-backward design of the pressure component together ensure absolute fixation of the sheet material during cutting, thus guaranteeing accurate and consistent dimensions. The introduction of a precision cutting unit is specifically designed to remove burrs generated during stamping, further improving the dimensional accuracy and appearance quality of the housing. Combining these measures, this equipment effectively reduces the product scrap rate to an extremely low level.

[0019] 3. The built-in intelligent identification and traceability system enables digital management of the production process. The intelligent identification unit uses a transfer robot to directly and continuously deliver the stamped shell to the inkjet printer and barcode scanner station, achieving integrated "stamping-inkjet printing-scanning" operations under a unified coordinate system, completely avoiding the cumulative errors caused by secondary positioning. This significantly reduces the QR code recognition error rate from the traditional 3%-5%, establishing a reliable and efficient product quality traceability system and laying a solid foundation for intelligent manufacturing and digital factory management. Attached Figure Description

[0020] Figure 1 This is a top view of the present invention; Figure 2 This is a schematic diagram of the structure of this utility model from one perspective; Figure 3 This is a schematic diagram of the servo correction component in this utility model; Figure 4 This is a schematic diagram of the detection component in this utility model; Figure 5 This is a schematic diagram of the tension control component in this utility model; Figure 6 This is a schematic diagram of the material strip winding structure of this utility model; Figure 7 This is a schematic diagram of the shearing unit from one perspective in this utility model; Figure 8 This is a schematic diagram of the shearing unit from another perspective in this utility model; Figure 9 This is a schematic diagram of the translational conveying component in this utility model; Figure 10 This utility model includes a schematic diagram of the material unloading robot. Detailed Implementation

[0021] To make the above-mentioned objects, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0022] Please see Figure 1 This embodiment provides a fully automatic lithium-ion battery button casing stamping and forming equipment, which includes a chassis 10, and a material feeding unit 20, a shearing unit 30, a casing forming unit 40, an intelligent marking unit 50, and a precision cutting and unloading unit 60 arranged sequentially along the processing flow from the chassis 10. A PLC control device 70 is also provided on the chassis 10 to control the automatic operation of the material feeding unit 20, shearing unit 30, casing forming unit 40, intelligent marking unit 50, and precision cutting and unloading unit 60. This integrated equipment reduces manual intervention by 80% and increases production capacity to 1920 pcs / h; high-precision control: casing concentricity ≤ ±0.03mm, yield ≥99.5%; intelligent traceability: closed-loop verification of inkjet printing and scanning, error rate <0.1%; convenience: production can proceed directly to the next process after completion; flexible production: by changing molds and adjusting PLC parameters, it can be adapted to different specifications of battery casings.

[0023] Please see Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 Specifically, in this embodiment, the material feeding unit 20 is used to place and convey the material belt, and includes a constant tension unwinding shaft 21, a servo correction component 22, a detection component 23 and a tension control component 24. The servo correction assembly 22 includes two parallel guide rails 220 fixed to the bottom of the housing 10. A slide table 221 is mounted on the guide rails 220 via a slider and can slide along the length of the guide rails 220. A servo screw cylinder 222 has its cylinder body fixed to the housing 10, and its output end is connected to the slide table 221 to drive the slide table 221 to move precisely. A mounting bracket 223 is fixed on the slide table 221. A constant tension unwinding shaft 21 is rotatably supported on the mounting bracket 223 via bearings, and the strip roll can be sleeved on the constant tension unwinding shaft 21. To provide unwinding power and maintain tension, a drive motor 224 is also fixed on the mounting bracket 223. A driving synchronous pulley is fixed to the output shaft of the drive motor 224 via a key connection. A driven synchronous pulley is provided at one end of the constant tension unwinding shaft 21. A drive synchronous belt is sleeved on the driving synchronous pulley and the driven synchronous pulley. Thus, the rotation of the drive motor 224 can drive the constant tension unwinding shaft 21 to rotate via the synchronous belt drive, thereby achieving active unwinding.

[0024] It should be noted that in other embodiments, a gear set can be used instead of a synchronous pulley and synchronous belt; or a sprocket and chain can be used instead of a synchronous pulley and synchronous belt.

[0025] To enable the servo correction component 22 to correct the deviation of the conveyor belt during transport, a detection component 23 is used to monitor the edge position of the conveyor belt in real time. This component includes a linear guide rail 230 fixed to the housing 10. A movable connecting plate 231 is mounted on the linear guide rail 230 via a slider. A U-shaped block 232 is fixed to one end of the movable connecting plate 231, through which the conveyor belt passes. A laser sensor is mounted on the U-shaped block 232, with its spot aligned with the edge of the conveyor belt to detect the lateral deviation of the conveyor belt relative to the U-shaped block 232 (i.e., the reference position). An adjusting screw 233 is connected to the other end of the movable connecting plate 231, threadedly connected to the movable connecting plate 231, and supported at both ends by bearing seats on a fixed block fixed to the housing 10. By manually rotating the adjusting screw 233, the initial positions of the movable connecting plate 231 and the laser sensor can be coarsely adjusted to accommodate conveyor belts of different widths. A guide roller 234 is also provided on the side of the U-shaped block 232 to smoothly guide the material strip through the U-shaped block 232. The laser sensor is electrically connected to the PLC control device 70 and transmits the offset signal it detects to the PLC control device 70 in real time. The PLC control device 70 then sends a command to the servo screw cylinder 222 to drive the slide table 221 and the entire unwinding section to make micro-movements, thereby correcting the position of the material strip and forming a closed-loop control system.

[0026] In addition, to ensure the tension of the conveyor belt during conveying and prevent the belt from rolling back when stopped, a tension control assembly 24 is provided. This tension control assembly 24 is located after unwinding and before the shearing unit 30, and includes a vertical plate 240 fixed to the housing 10. A pressing mechanism 241 is provided on the upper part of the vertical plate 240. The pressing mechanism 241 includes a vertical support plate that is perpendicularly connected to the vertical plate 240. Two sets of sliding rods are symmetrically slidably arranged on both sides of the vertical support plate; the upper ends of the two sets of sliding rods are connected to pressure plates for pressing the conveyor belt. The lower ends of the sliding rods are connected to limit plates. A first telescopic cylinder is installed on the bottom surface of the vertical support plate, and its output end is connected to the limit plate. When the first telescopic cylinder is activated, it can drive the limit plate and the entire sliding rod assembly and pressure plate to move up and down, thereby pressing and releasing the conveyor belt and preventing it from rolling back when feeding stops. On both sides of the pressing mechanism 241, the vertical plate 240 is provided with multiple first material strip guide rollers 242 for guiding and supporting the material strip.

[0027] A vertical guide rail 243 is fixed to a vertical plate 240 on the side of the pressing mechanism 241. A gravity slider 244 is mounted on the vertical guide rail 243 and can slide freely up and down. Two second strip guide rollers 245, which are on the same horizontal plane, are mounted on the gravity slider 244, and the strip passes between these two rollers. The weight of the gravity slider 244 itself provides a constant tension for the strip. On the side of the vertical guide rail 243, a mounting plate 246 parallel to the vertical guide rail 243 is fixed to the vertical plate 240. Multiple sensors 247 are arranged on the mounting plate 246 from top to bottom. A sensing plate that can sense the sensors 247 is fixed to the side of the gravity slider 244. Sensor 247 is electrically connected to PLC control device 70 to detect the position of gravity slider 244, thereby providing feedback on the tension of the material strip. PLC control device 70 can then adjust the speed of unwinding drive motor 224 to prevent the material strip from being too loose or too tight. Furthermore, when the material strip is unwound, the gravity slider 244, without the tension of the material strip, slides to the bottom of vertical guide rail 243 and is stopped by a limiting member. Sensor 247 at the bottom detects the sensing element and sends a signal back to PLC control device 70, which then issues an alarm.

[0028] Please see Figure 7 and Figure 8 The shearing unit 30 is used to cut the strip into sheets of a set size. The shearing unit 30 includes a feeding moving module 31, a suction plate 32, a positioning pressure plate 33, a pressing assembly 34, and a slitting assembly 35. The feeding moving module 31 is fixed to the worktable of the chassis 10. The suction plate 32 is fixed to the slide of the feeding moving module 31 by a support 310. The upper surface of the suction plate 32 has multiple equally spaced cutting grooves 321, which divide the suction plate 32 into multiple material distribution areas. Multiple mounting holes are evenly distributed in each material distribution area, and a suction nozzle is installed in each mounting hole. The suction nozzle is connected to an external vacuum generator through a pipeline and its on / off state is controlled by a PLC control device 70 for adsorbing and fixing sheet materials. On both sides of the suction plate 32, two limit adjustment blocks 323 are symmetrically arranged by lifting guide rods 322. The feeding moving module 31 is provided with a guide slide 324 movably connected to each lifting guide rod 322, and lifting cylinders 325 are symmetrically arranged on both sides of the support 310 to drive the limit adjustment blocks 323 to rise and fall. Two limit adjustment blocks 323 and suction plate 32 together form a material guiding channel, in which the material strip is precisely guided and limited. An extension plate 326 is also fixed on one side of suction plate 32. The extension plate 326 extends towards the pressing assembly 34, and its upper end face is flush with the upper end face of suction plate 32, which is used to support the front end of the material strip before cutting.

[0029] A positioning pressure plate 33 is positioned above the suction plate 32. Support rods 330 are fixed to both sides of the positioning pressure plate 33, and these rods 330 movably pass through the worktable. A first push plate is connected to the bottom of the support rods 330. A second telescopic cylinder is installed on the bottom surface of the worktable, and its output end is connected to the first push plate. By controlling the second telescopic cylinder via a PLC, the support rods 330 can be driven to move the positioning pressure plate 33 downwards, cooperating with the suction plate 32 to firmly press the material strip, providing stable support for cutting. The positioning pressure plate 33 also has a cutting groove 321 corresponding to the cutting groove 321 on the suction plate 32.

[0030] The pressing assembly 34, located near the tension control assembly 24, is used to prevent the strip from sliding backward during slitting. It includes a lifting frame 340 and a pressing plate 341. The lifting frame 340 is driven by a lifting cylinder 342 mounted on the feeding moving module 31 and can be raised and lowered. The pressing plate 341 is positioned above the lifting frame 340, with guide rods 343 on both sides that movably pass through the worktable. A third push plate is located at the bottom of the guide rods 343. A fourth telescopic cylinder is mounted on the bottom surface of the worktable, its output end connected to the third push plate, for driving the pressing plate 341 downward. Adjustable-gap pressing blocks are provided on both sides of the bottom of the pressing plate 341, with elastic pressing blocks on the bottom surface of the pressing blocks to protect the surface of the strip during pressing.

[0031] The slitting assembly 35 is located above the positioning pressure plate 33. It includes two spaced-apart support platforms 350. A horizontal guide rail 351 is provided on the upper surface of the two support platforms 350. A blade holder 352 is mounted on the horizontal guide rail 351 via a slider. Multiple cutters 353 are evenly spaced on the blade holder 352, the number and spacing of which correspond to the cutting grooves 321 on the suction plate 32 and the positioning pressure plate 33. A rodless cylinder 354 is mounted on one of the support platforms 350. The slider of the rodless cylinder 354 is connected to the blade holder 352, driving the blade holder 352 and the cutters 353 to move along the horizontal guide rail 351 to complete the cutting action. Vertical slide rods 355 are provided on both sides of the two support platforms 350, movably passing through the worktable. A second push plate is provided at the bottom of the vertical slide rod 355. A third telescopic cylinder is installed on the bottom surface of the workbench, and its output end is connected to the second push plate. The third telescopic cylinder can drive the entire slitting assembly 35 to move down, so that the cutter 353 is closer to the material strip, or to lift up to make room. After the cutting is completed, the cutting sheet material on the suction plate 32 is driven by the feeding moving module 31 to be transported to one side of the punching and forming unit 40.

[0032] The above-mentioned shearing unit 30 operates as follows: the suction plate 32 is located below the material strip, the suction nozzle is closed, and the positioning pressure plate 33 and the pressure plate 341 are in a raised state; the feeding moving module 31 drives the suction plate 32 to move to a predetermined position below the material strip, at which time the extension plate 326 extends to the front end of the material strip; the lifting cylinder 325 drives the limit adjusting block 323 to rise, supporting the material strip from both sides. The second telescopic cylinder drives the positioning pressure plate 33 to press down, pressing the material strip together with the suction plate 32. At the same time, the fourth telescopic cylinder drives the pressure plate 341 to press down, pressing the material strip with the elastic pressure block. Subsequently, the suction nozzle on the suction plate 32 is activated, vacuuming and holding the material strip; the third telescopic cylinder drives the entire slitting assembly 35 to move downward, and the cutter 353 passes through the positioning pressure plate 33 and the cutting groove 321 on the suction plate 32, bringing the cutter 353 closer to the material strip. The rodless cylinder 354 drives the knife holder 352 and the cutter 353 to move quickly, cutting the material strip into multiple independent pieces; at this time, the pressing assembly 34 effectively prevents the material strip from retreating under the cutting force; after the cutting is completed, the cutter 353 retracts, and the positioning pressure plate 33, the pressing plate 341 and the limit adjustment block 323 are raised; the suction nozzle on the suction plate 32 continues to maintain vacuum, holding the pieces; subsequently, the feeding moving module 31 drives the suction plate 32 to carry the pieces to the receiving position of the punching forming unit 40.

[0033] Please see Figure 9The shell forming unit 40 is used to stamp sheet material into shells. The shell forming unit 40 includes a hydraulic stamping system 41 for stamping sheet material and a translational conveying assembly 42 for feeding the sheet material from the suction plate 32 to the hydraulic stamping system 41. The hydraulic stamping system 41 can be an adjustable pressure system with a pressure of 5-10T. The hydraulic stamping system 41 has a conventional structure, including a machine body fixed to the housing 10, a main hydraulic cylinder, an upper die base, a lower die base, and stamping dies detachably mounted on the upper and lower die bases. Its specific structure is well known to those skilled in the art and will not be described in detail here.

[0034] The translational conveying assembly 42 is used to accurately transfer the suction-loaded sheet material into the stamping die. It includes an X-axis moving module 420 positioned above the worktable. An X-axis adjusting moving module 421 is mounted on the slide of the X-axis moving module 420. Multiple Z-axis slide cylinders 422 are fixed at equal intervals on the X-axis adjusting moving module 421. A horizontal suction plate 423 is mounted at the output end of each Z-axis slide cylinder 422. Multiple first suction cups are arranged on the bottom surface of each horizontal suction plate 423. The first suction cups are connected to a vacuum generator via pipes. When the suction plate 32 carrying the sheet material arrives at the receiving position, the X-axis moving module 420 and the X-axis adjusting moving module 421 move in tandem to position the horizontal suction plate 423 directly above the sheet material. Then, the Z-axis slide cylinder 422 drives the horizontal suction plate 423 to descend, the first suction cup contacts the sheet material and draws a vacuum to pick up the sheet material. Afterward, the Z-axis slide cylinder 422 rises, the translational conveying assembly 42 moves to above the mold of the hydraulic stamping system 41, and descends again to precisely place the sheet material at the designated position in the lower mold. Subsequently, the first suction cup breaks the vacuum to release the sheet material, and the translational conveying assembly 42 returns to the standby position. The hydraulic stamping system 41 then performs the stamping operation to form the sheet material into a shell.

[0035] The intelligent identification unit 50 is used to spray a QR code onto the bottom of the formed housing and immediately scan and record it. The intelligent identification unit 50 includes an inkjet printer 52 and a barcode scanner 53 fixed to the chassis 10 via a bracket 51. A transfer robot 54 is positioned between the hydraulic stamping system 41, the inkjet printer 52, and the barcode scanner 53. After stamping, the upper mold is lifted, and the transfer robot 54 moves into the mold of the hydraulic stamping system 41 to grasp the formed housing. The transfer robot 54 moves the housing to below the printhead of the inkjet printer 52, which sprays a unique QR code onto the bottom of the housing according to the instructions of the PLC control device 70. After the coding is completed, the transfer robot 54 immediately moves the housing to the scanning area of ​​the barcode scanner 53. The barcode scanner 53 scans the newly printed QR code and sends the read information to the PLC control device 70. The PLC control device 70 compares the scanning result with the coding instructions. If the reading is successful and the information is correct, the shell is marked as a qualified product; if the reading fails or the information is incorrect, it is marked as a defective product. This information will be used for sorting in the subsequent precision cutting and unloading unit 60; finally, the transfer robot 54 places the scanned shell into the receiving station of the precision cutting and unloading unit 60; by setting up the intelligent identification unit 50, integrating the inkjet printer 52 and the barcode scanner 53, the data is uploaded to the MES system in real time, realizing one shell, one code traceability.

[0036] Please see Figure 10 The precision cutting and blanking unit 60 is used to cut the burrs on the shell and stamp the shell into shape. It includes a blanking die 61 and a blanking robot and a receiving bin 62 for feeding and blanking. The blanking robot includes a set of horizontal guide rails 63, on which two independently movable picking and picking components 64 and blanking picking components 65 are arranged side by side.

[0037] The material handling moving assembly 64 includes a moving bracket 640, which is mounted on a horizontal guide rail assembly 63 via a slider. A motor screw drive assembly 641 is fixed to the housing 10 and drives the moving bracket 640 of the material handling moving assembly to move along the rail. A lifting drive component 642 is mounted on the moving bracket 640, and the output end of the lifting drive component 642 is connected to a lifting connecting plate 643. The bottom surface of the lifting connecting plate 643 is provided with multiple second suction cups. A waste recycling hopper is provided beside the moving path of the material handling moving assembly 64.

[0038] Furthermore, the unloading and picking assembly 65 also includes a movable support 640, which is also mounted on the horizontal guide rail assembly 63 via a slider. Its structure is similar to that of the picking and picking moving assembly 64, also including a lifting drive component 642 and a lifting connecting plate 643 with a second suction cup. A push cylinder 650 is mounted on the movable support 640 of the picking and picking assembly 64, and the output end of the push cylinder 650 is connected to the movable support 640 of the unloading and picking assembly 65, enabling it to move.

[0039] When the transfer robot 54 moves the housing (whether qualified or not) to the receiving position near the blanking die 61, the picking and moving component 64 actuates, moving to the receiving position to pick up the housing. When there is a housing that fails the barcode scan, the picking and moving component 64 moves to the scrap recycling hopper and throws the defective product into the scrap recycling hopper. The qualified product continues to be transferred by the picking and moving component 64 to the blanking die 61. The blanking die 61 actuates to complete the precision cutting and forming of the housing. The unloading and picking component 65 moves above the blanking die 61 under the drive of the push cylinder, descends and picks up the precision-cut housing. Then it rises and moves above the receiving bin 62 to release the housing, completing the unloading of qualified products.

[0040] In summary, this invention, through a highly integrated modular design, seamlessly connects previously fragmented processes, eliminating manual intervention and material handling, thus significantly improving production efficiency and product consistency. Servo-based alignment, constant tension control, and multi-station precision positioning ensure high-precision processing throughout the entire process from material conveyor to finished product. The built-in intelligent identification and traceability system enables real-time data collection and management, providing a solid foundation for quality control and intelligent manufacturing. Therefore, compared to traditional equipment, this invention represents a significant advancement in efficiency, precision, and intelligence.

[0041] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

Claims

1. Fully automatic lithium-ion battery button casing stamping equipment, including: It includes a chassis and a PLC control device disposed within the chassis for controlling the operation of the equipment, characterized in that the components are disposed within the chassis and arranged sequentially along the manufacturing process. The material belt feeding unit is used to place and convey the material belt. It includes a constant tension unwinding shaft, a servo correction component that drives the position of the constant tension unwinding shaft, a detection component that detects the material belt offset and feeds it back to the servo correction component for correction, and a tension control component that guides, presses, and adjusts the tension of the material belt. The shearing unit is used to cut the strip into sheets of a set size. It includes a feeding moving module, a suction plate on the feeding moving module, a slitting component for cutting the strip on the suction plate into equal parts, a positioning pressure plate on the lower side of the cutting component and cooperating with the suction plate to press the strip, and a pressing component to prevent the strip from moving backward when the slitting component cuts. The suction plate and the positioning pressure plate are provided with cutting grooves at equal intervals that correspond to the cutters on the slitting component. Limit adjustment blocks are provided on both sides of the suction plate, and the limit adjustment blocks on both sides form a guide channel so that the strip moves along the guide channel. A shell forming unit is used to stamp sheet material into a shell. It includes a hydraulic stamping system for stamping sheet material and a translation conveying assembly for feeding sheet material from a suction plate to the hydraulic stamping system. The intelligent identification unit is used to print and scan QR codes on the housing. It includes an inkjet printer, a barcode scanner, and a transfer robot for gripping the housing in the hydraulic stamping system and sending it to the inkjet printer and barcode scanner for printing and scanning QR codes. The precision cutting unit is used to cut burrs on the housing and stamp the housing into shape. It includes a cutting die, a cutting robot for feeding and unloading, and a receiving bin.

2. The fully automatic lithium-ion battery button casing stamping equipment according to claim 1, characterized in that, The servo correction assembly includes a guide rail assembly, a slide table mounted on the guide rail assembly, and a servo lead screw cylinder that drives the slide table and is electrically connected to the detection assembly. The slide table is equipped with a mounting bracket, and the constant tension unwinding shaft is rotatably mounted on the mounting bracket via bearings. The mounting bracket is equipped with a drive motor, and the output shaft of the drive motor is keyed to an active synchronous pulley. One end of the constant tension unwinding shaft is equipped with a driven synchronous pulley, and the driven synchronous pulley and the active synchronous pulley are connected by a drive synchronous belt.

3. The fully automatic lithium-ion battery button casing stamping equipment according to claim 2, characterized in that, The detection assembly includes a linear slide rail and a movable connecting plate that slides on the linear slide rail. One end of the movable connecting plate is provided with a U-shaped block for the material belt to pass through. The U-shaped block is provided with a laser sensor for detecting the material belt. The other end of the movable connecting plate is provided with an adjusting screw that is threaded to the movable connecting plate and fixed to the machine box by a fixing block. A guide roller is provided on the side of the U-shaped block, and the guide roller pulls the material belt through the U-shaped block.

4. The fully automatic lithium-ion battery button casing stamping equipment according to claim 1, characterized in that, The tension control assembly includes a vertical plate, which is equipped with a pressing mechanism. Multiple first material strip guide rollers are provided on both sides of the pressing mechanism. A vertical guide rail is provided on the vertical plate to the side of the pressing mechanism. A gravity slider is slidably mounted on the vertical guide rail. Two second material strip guide rollers at the same horizontal plane are provided on the gravity slider. A mounting plate parallel to the vertical guide rail is provided on the vertical plate to the side of the vertical guide rail. Multiple sensors are provided on the mounting plate from top to bottom, and a sensing plate that senses the sensors is provided on the side of the gravity slider. The pressing mechanism includes a vertical support plate perpendicular to the vertical plate, and slide rods are symmetrically slidably arranged on both sides of the vertical support plate. The upper end of the slide rods is provided with a pressure plate for pressing the material strip, and the lower end of the slide rods is provided with a limiting plate. The bottom surface of the vertical support plate is provided with a first telescopic cylinder whose output end is connected to the limiting plate.

5. The fully automatic lithium-ion battery button casing stamping equipment according to claim 1, characterized in that, The suction plate is divided into multiple material distribution areas by a cutting groove. Each material distribution area is provided with mounting holes, and a suction nozzle is installed in each mounting hole. The bottom of the suction plate is provided with a support base connected to the feeding moving module. On both sides of the support base, there are symmetrical lifting guide rods connected to the limit adjustment blocks. The feeding moving module is provided with a guide slide cylinder movably connected to each lifting guide rod. On both sides of the support base, there are lifting cylinders that drive the limit adjustment blocks to rise and fall. An extension plate is fixed on one side of the suction plate. The extension plate extends toward the pressing assembly, and the upper surface of the extension plate is flush with the upper surface of the suction plate.

6. The fully automatic lithium-ion battery button casing stamping equipment according to claim 1, characterized in that, The positioning plate is provided with support rods on both sides. The support rods move through the worktable of the machine box. The positioning plate is positioned above the suction plate and below the cutting component by the support rods. The bottom of the support rod is provided with a first push plate, and the bottom surface of the worktable is provided with a second telescopic cylinder whose output end is connected to the first push plate. The second telescopic cylinder drives the first push plate, so that the support rod pulls the positioning plate down to cooperate with the suction plate to press the material.

7. The fully automatic lithium-ion battery button casing stamping equipment according to claim 6, characterized in that, The slitting assembly includes two support platforms spaced apart. The upper surfaces of the two support platforms are provided with horizontal guide rails, and a blade holder slides along the horizontal guide rails. The blade holder is provided with cutters at equal intervals, and each cutter corresponds to a cutting groove on the positioning plate. One of the support platforms is provided with a rodless cylinder that drives the blade holder to move and make the cutters cut. Vertical slide rods that move through the worktable are provided on both sides of the two support platforms. A second push plate is provided at the bottom of the vertical slide rods, and a third telescopic cylinder whose output end is connected to the second push plate is provided on the bottom surface of the worktable.

8. The fully automatic lithium-ion battery button casing stamping equipment according to claim 5, characterized in that, The pressing assembly includes a lifting frame for lifting the material belt and a lifting cylinder mounted on the feeding moving module to drive the lifting frame to rise and fall; it also includes a pressing plate that cooperates with the lifting frame to press the material belt, and the pressing plate has guide vertical rods on both sides that move through the worktable of the machine box, the bottom of the guide vertical rods has a third push plate, and the bottom surface of the worktable has a fourth telescopic cylinder whose output end is connected to the third push plate; the bottom sides of the pressing plate have pressing blocks with adjustable spacing, and the bottom surface of the pressing blocks has elastic pressing blocks that contact the material belt.

9. The fully automatic lithium-ion battery button casing stamping equipment according to claim 1, characterized in that, The translational conveying assembly includes an X-axis moving module and an X-axis adjusting moving module located on the X-axis moving module. Multiple Z-axis slide cylinders are evenly spaced on the X-axis adjusting moving module. Each Z-axis slide cylinder is equipped with a horizontal suction plate, and a first suction cup is arranged on the bottom surface of each horizontal suction plate.

10. The fully automatic lithium-ion battery button casing stamping equipment according to claim 1, characterized in that, The unloading robot includes a horizontal guide rail assembly and a material handling and unloading / removing assembly respectively located on the horizontal guide rail assembly. The material handling and moving assembly is used to pick up the shell on the transfer robot and transport it to the blanking die. A waste recycling hopper is provided on one side of the material handling and moving assembly. The unloading / removing assembly is used to pick up the shell inside the blanking die and transport it to the receiving bin. Both the material handling and moving assembly and the unloading / removing assembly include a moving bracket and a lifting drive component located on the moving bracket, as well as a lifting connecting plate driven by the lifting drive component. A second suction cup is provided on the bottom surface of the lifting connecting plate. A motor screw drive assembly is provided on the chassis to drive the moving bracket of the material handling and moving assembly to move. A push cylinder is provided on the moving bracket of the material handling and moving assembly to drive the moving bracket of the unloading / removing assembly to move.

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