An OCV testing and cutting device for pouch cells

Abstract

This application discloses an OCV testing and cutting device for pouch cells, comprising a worktable, a testing component, and a cutting component. Both the cutting component and the testing component are mounted on the worktable. The testing component includes clamping testing blocks and testing frames. Two testing frames are vertically arranged, and two clamping testing blocks are slidably mounted on each testing frame. The cutting component includes cutting frames, abutment blocks, and cutting blades. Two cutting frames are mounted on the worktable, and one abutment block and one cutting blade are mounted in each cutting frame. The cutting blade is positioned above the cutting blade. A central slide rail is arranged on the worktable along the line connecting the testing component and the cutting component. The central slide rail is simultaneously positioned between the two testing frames and the two cutting frames. A sliding plate is slidably mounted on the central slide rail, and a support frame is mounted on the sliding plate. This application has the effect of improving the production quality and efficiency of pouch cells.

Description

Technical Field

[0001] This application relates to the field of chip manufacturing technology, and in particular to an OCV testing and cutting device for pouch cells. Background Technology

[0002] Reference Figure 1 A pouch cell includes a pouch cell body 01, tabs 02, and plastic edges 03. One tab 02 is provided at each end of the pouch cell body 01 along its length, and one plastic edge 03 is provided at the end of each tab 02 furthest from the pouch cell body 01. After the pouch cell body 01 is manufactured, the plastic edges 03 need to be removed.

[0003] OCV (Open Circuit Voltage) is an important parameter used to test batteries. Specifically, OCV testing measures the voltage value of a battery in an open-circuit state, reflecting the magnitude of the internal electromotive force. Current OCV testing procedures involve connecting the tabs at both ends of the pouch cell to power. After completing the OCV test, the operator cuts off the plastic edge. However, this testing and cutting process is time-consuming, requiring operators to remove the pouch cell from the testing mechanism and cut it, thus reducing the production efficiency of pouch cells. Summary of the Invention

[0004] In order to improve the production quality and efficiency of pouch cells, this application provides an OCV testing and cutting device for pouch cells.

[0005] The OCV testing and cutting device for pouch cells provided in this application adopts the following technical solution:

[0006] An OCV testing and cutting device for soft-pack battery cells includes a worktable, a testing component, and a cutting component. Both the cutting component and the testing component are mounted on the worktable. The testing component includes clamping testing blocks and testing frames. Two testing frames are vertically arranged, and two clamping testing blocks are slidably arranged on each testing frame. Each testing frame has a first driving member for driving the clamping testing blocks to move vertically. The cutting component includes a cutting frame, an abutment block, and a cutting blade. Two cutting frames are arranged on the worktable, and one abutment block and one cutting blade are arranged in each cutting frame. The cutting blade is positioned above the cutting blade. A second driving member is arranged on the cutting frame for driving the cutting blade to move vertically. A central slide rail is arranged on the worktable along the line connecting the testing component and the cutting component. The central slide rail is simultaneously arranged between two testing frames and two cutting frames. A sliding plate is slidably arranged on the central slide rail, and a support frame is arranged on the sliding plate.

[0007] By adopting the above technical solution, the two ends of the pouch cell are placed between two corresponding clamping detection blocks. Under the action of the first driving component, the two clamping detection blocks move towards each other and clamp the corresponding tabs, thus achieving OCV detection of the pouch cell. After the OCV detection is completed, the clamping detection blocks move away from each other, releasing the clamp on the pouch cell. The support frame transports the pouch cell to the cutting assembly station, where the cutting blade moves downwards and cuts the plastic edges. Through the cooperation of the worktable, detection assembly, and cutting assembly, the detection and edge cutting of the pouch cell are achieved, improving the production quality and efficiency of pouch cells.

[0008] Optionally, the cutting assembly further includes a connecting base block, a stamping block, a sliding ring block, and a clamping block. The stamping block is slidably disposed in the cutting frame in the vertical direction. The connecting base block is connected to the bottom surface of the stamping block. The cutting blade is disposed on the bottom surface of the connecting base block. The sliding ring block is slidably disposed outside the connecting base block. The clamping block is disposed on the bottom surface of the sliding ring block and is fitted against one side of the cutting blade. The clamping block is vertically aligned with the abutment block. A clamping spring is provided between the sliding ring block and the stamping block. In its natural state, the height of the bottom surface of the clamping block is lower than the height of the bottom edge of the cutting blade.

[0009] By adopting the above technical solution, when cutting the plastic edge, the clamping block moves downward along with the sliding ring block and the stamping block until its bottom surface presses the plastic edge against the top surface of the abutment block. At this time, the clamping spring shortens and accumulates elastic potential energy, causing the sliding ring block to slide relative to the connecting bottom block, and the cutting blade continues to move downward, thus cutting the plastic edge. The clamping block and clamping spring achieve positioning of the plastic edge, preventing the soft-pack battery cell body from shaking during the cutting process.

[0010] Optionally, the support frame includes a support plate, a lifting support rod, and a lifting abutment rod. The support plate is horizontally disposed on the sliding plate. The lifting abutment rod and the lifting support rod are both vertically disposed on the bottom surface of the sliding plate and connected to the sliding plate. Several mounting blocks are disposed on the top surface of the support plate along its width direction. A clamping positioning block is connected to each end of the top surface of the mounting block in the length direction. The spacing between two clamping positioning blocks corresponds to the width of the soft-pack battery cell body. A positioning end plate is disposed at each end of the length direction of the support plate. The spacing between two positioning end plates corresponds to the length of the soft-pack battery cell body.

[0011] By adopting the above technical solution, the support frame enables the transportation of the soft-pack battery cell body. The two positioning end plates limit the two ends of the soft-pack battery cell body in the length direction, and the clamping positioning block limits the two ends of the soft-pack battery cell body in the width direction, thus preventing the soft-pack battery cell body from swaying above the support plate.

[0012] Optionally, both the lifting abutment rod and the lifting support rod pass through the sliding plate and are slidably connected thereto. A first guide rail is provided on the worktable along the length of the central slide rail. The first guide rail includes a first guide section and a second guide section connected together. The first guide section is located near the detection component, and the second guide section is located near the end of the cutting component. The height of the first guide section is higher than the height of the second guide section. The bottom end of the lifting abutment rod slides against the top surface of the first guide rail. When the lifting abutment rod abuts against the first guide section, the top surface of the support plate is located between the two corresponding clamping detection blocks. When the lifting abutment rod abuts against the second guide section, the support plate moves between the two cutting frames. At this time, the height of the support plate is lower than the top height of the abutment block. The edge of the abutment block has a clearance groove corresponding to the positioning end plate. A top support rod is vertically provided on the sliding plate. A connecting hole corresponding to the top support rod is provided on the support plate. The top height of the top support rod corresponds to the top height of the abutment block.

[0013] By adopting the above technical solution, during the transportation of the soft-pack battery cell body by the support frame, when the lifting abutment rod moves from the first guide section to the second guide section, the support plate descends with the lifting abutment rod and lowers to the height corresponding to the clearance groove, avoiding interference between the two abutment blocks at both ends of the support plate in the length direction during the feeding process. At the same time, as the support plate descends, the top of the top support rod passes through the connecting hole and contacts the bottom surface of the soft-pack battery cell body, thereby supporting the soft-pack battery cell body and ensuring that the two plastic edges are located between the abutment block and the cutting blade, facilitating the cutting of the plastic edges in subsequent operations.

[0014] Optionally, the abutting block has a first discharge port, and a discharge pipe is provided below the abutting block. The discharge pipe is connected to the first discharge port, and a guide plate is connected to the bottom end of the discharge pipe. A waste collection box corresponding to the guide plate is provided below the workbench.

[0015] By adopting the above technical solution, the cut plastic edges pass through the first discharge port, the discharge pipe and the guide plate, and finally fall into the waste collection box located below the workbench, thus realizing the automatic collection of waste.

[0016] Optionally, a feeding rack is provided on the sliding plate. The feeding rack is located at one end of the support frame near the cutting component. The feeding rack includes a feeding support plate, a feeding sleeve rod, and a feeding slide rod. The feeding sleeve rod vertically penetrates the sliding plate and is slidably connected to it. The bottom end of the feeding sleeve rod is slidably disposed in the feeding sleeve rod. The feeding support plate is disposed at the top end of the feeding slide rod. A second guide rail is provided on the top surface of the workbench along the length direction of the central slide rail. The bottom end of the feeding sleeve rod slidably abuts against the top surface of the second guide rail. The second guide rail includes a third guide section and a fourth guide section. The third guide section is located at one end near the detection component. The top surface height of the third guide section is lower than the top surface height of the fourth guide section. The transition section between the third guide section and the fourth guide section corresponds to the position of the cutting component.

[0017] By adopting the above technical solution, when the feeding rack moves towards the cutting component along with the sliding plate, the feeding tray moves from above the third guide section to above the fourth guide section, and then moves upward and contacts the bottom surface of the cut soft-pack battery cell body, removing it from between the two cutting frames and moving it away from the cutting frames, thereby realizing the transportation of the soft-pack battery cell body.

[0018] Optionally, the cutting frame is slidably disposed with respect to the worktable, the sliding direction of the cutting frame is perpendicular to the length direction of the central slide rail, the worktable is provided with two connecting ports for accommodating the cutting frame, the two connecting ports are respectively disposed with the two cutting frames, and the worktable is provided with a third driving component for driving the cutting frame to move.

[0019] By adopting the above technical solution, the two cutting frames can move towards or away from each other under the action of the third driving component, thereby adjusting the distance between the two cutting frames. This allows the device to be applied to pouch cells of different lengths.

[0020] Optionally, a feeding ramp is provided at the end of the workbench away from the detection component, and a finished product collection box corresponding to the bottom end of the feeding ramp is provided on one side of the workbench. The feeding tray is rotatably connected to the feeding slide rod, and a rotating cylinder is rotatably provided on the feeding slide rod. The output shaft of the rotating cylinder is rotatably connected to the bottom surface of the feeding tray.

[0021] By adopting the above technical solution, when the feeding rack moves to a position close to the feeding ramp, the rotary cylinder is started and drives the feeding tray to rotate. The soft-pack battery cell body placed on the feeding tray slides onto the feeding ramp and falls into the finished product collection box along the feeding ramp, realizing the automatic and rapid collection of finished products.

[0022] In summary, this application includes at least one of the following beneficial technical effects:

[0023] 1. Through the cooperation of the workbench, inspection components and cutting components, the inspection of the soft-pack battery cell body and edge cutting are realized, which can improve the production quality and efficiency of soft-pack battery cells;

[0024] 2. The clamping block and clamping spring are designed to position the plastic edge, preventing the soft-pack battery cell from shaking during the cutting process;

[0025] 3. The third driving component enables adjustment of the distance between the two cutting frames, allowing the device to be adapted to pouch cell bodies of different lengths. Attached Figure Description

[0026] Figure 1 This is a schematic diagram illustrating the structure of a pouch cell.

[0027] Figure 2 This is a schematic diagram illustrating the structure of an OCV testing and cutting device for a pouch cell, as described in an embodiment of this application.

[0028] Figure 3 This is a schematic diagram illustrating the structure of the waste collection bin in the embodiments of this application.

[0029] Figure 4 yes Figure 3 Enlarged view of part A in the middle.

[0030] Figure 5 This is a partial cross-sectional view used to illustrate the cutting component in the embodiments of this application.

[0031] Figure 6 yes Figure 5 Enlarged view of section B in the middle.

[0032] Figure 7 yes Figure 3 Enlarged view of section C.

[0033] Explanation of reference numerals in the attached drawings: 01, soft-pack battery cell body; 02, electrode tab; 03, plastic edge; 1, workbench; 101, communication port; 2, detection assembly; 21, clamping detection block; 22, clamping cylinder; 23, detection frame; 3, cutting assembly; 301, cutting frame; 302, detection camera; 303, cutting cylinder; 304, stamping block; 305, sliding ring block; 306, clamping block; 307, sliding guide. 308. Rod; 309. Connecting base block; 310. Cutting blade; 311. Abutment block; 312. Compression spring; 313. Mounting base block; 4. First material drop port; 5. Second material drop port; 6. Support frame; 61. Support plate; 612. Connecting hole; 63. Mounting block; 64. Clamping positioning block; 65. Positioning end plate; 66. Lifting support rod; 67. Lifting abutment rod; 68. First abutment spring; 69. First roller 69. Top support vertical rod; 7. Unloading rack; 71. Unloading tray; 72. Unloading edge; 73. Rotating cylinder; 74. Displacement cylinder; 75. Unloading sleeve rod; 76. Unloading slide rod; 77. Second abutment spring; 78. Second roller; 8. Sliding plate; 9. Center slide rail; 10. Spacing adjustment assembly; 102. Adjusting motor; 103. Adjusting screw; 104. Adjusting guide rail; 105. Adjusting screw seat; 1 1. Feed pipe; 12. Guide ramp; 13. Waste collection box; 15. First guide rail; 151. First guide section; 152. Second guide section; 16. Clearance groove; 17. Second guide rail; 171. Third guide section; 172. Fourth guide section; 18. Supporting vertical plate; 19. First control switch; 20. Feeding ramp; 24. Finished product collection box; 25. Mounting vertical plate; 26. Second control switch. Detailed Implementation

[0034] The following is in conjunction with the appendix Figure 1-7 This application will be further described in detail below. Embodiments of this application provide an OCV testing and cutting device for pouch cells, which improves the production quality and efficiency of pouch cells.

[0035] Reference Figure 2 and Figure 3An OCV testing and cutting device for soft-pack battery cells includes a worktable 1, a testing component 2, a cutting component 3, a support frame 6, a feeding rack 7, a sliding plate 8, a central slide rail 9, and a spacing adjustment component 10. The testing component 2 and the cutting component 3 are both mounted on the worktable 1.

[0036] Reference Figure 4 The detection assembly 2 includes clamping detection blocks 21, clamping cylinders 22, and detection frames 23. Two detection frames 23 are vertically arranged on the top surface of the workbench 1, and two clamping detection blocks 21 and two clamping cylinders 22 are provided on each detection frame 23. The two clamping cylinders 22 are located on the side of the two clamping detection blocks 21 that are far apart from each other and are connected to the detection frame 23. The output axes of the two clamping cylinders 22 extend in a direction that brings them closer together and are connected to the corresponding clamping detection blocks 21.

[0037] Reference Figure 5 and Figure 6 The workbench 1 has two connecting ports 101. The cutting assembly 3 includes a cutting frame 301, a detection camera 302, a cutting cylinder 303, a stamping block 304, a sliding ring block 305, a clamping block 306, a sliding guide rod 307, a connecting base block 308, a cutting blade 309, an abutment block 310, a clamping spring 311, and a mounting base block 312. One cutting frame 301 is vertically arranged in each connecting port 101, and the two cutting frames 301 are arranged parallel to each other. The detection camera 302 is located at the top of the cutting frame 301. The mounting base block 312 is located inside the cutting frame 301, and the abutment block 310 is located on the top surface of the mounting base block 312. The stamping block 304 is slidably disposed in the cutting frame 301 and located above the mounting base block 312. The cutting cylinder 303 is connected to the top of the cutting frame 301, and the output shaft of the cutting cylinder 303 extends vertically downward and is connected to the stamping block 304 in a transmission manner. The connecting base block 308 is connected to the bottom surface of the stamping block 304, and the cutting blade 309 is connected to the bottom surface of the connecting base block 308. The cutting blades 309 on the two cutting frames 301 are arranged in parallel. The sliding ring block 305 is slidably connected to the outside of the stamping block 304, and the sliding guide rod 307 is vertically connected to the bottom surface of the stamping block 304. The sliding guide rod 307 is slidably connected to the sliding ring block 305. The clamping spring 311 is connected between the bottom surface of the stamping block 304 and the top surface of the sliding ring block 305. The clamping block 306 is connected to the bottom surface of the sliding ring block 305, and one side of the clamping block 306 is slidably attached to the cutting blade 309. In its natural state, the bottom surface of the clamping block 306 is lower than the bottom edge of the cutting blade 309 under the action of the clamping spring 311.

[0038] Reference Figure 5 and Figure 6The abutment block 310 has a first discharge port 4. The side wall of the clamping block 306 that is in contact with the cutting blade 309 is vertically aligned with one side of the inner wall of the first discharge port 4. The mounting base block 312 has a second discharge port 5 that communicates with the first discharge port 4. A discharge pipe 11 that communicates with the second discharge port 5 is connected to the bottom surface of the mounting base block 312. The bottom end of the discharge pipe 11 extends to the bottom of the workbench 1 and is connected to a guide ramp 12. A waste collection box 13 that corresponds to the bottom end of the guide ramp 12 is placed under the workbench 1.

[0039] Reference Figure 5 Two sets of spacing adjustment components 10 are provided on the worktable 1, with each set corresponding to one of the two cutting frames 301. Each spacing adjustment component 10 includes an adjustment motor 102, an adjustment screw 103, an adjustment guide rail 104, and an adjustment screw seat 105. The adjustment motor 102 is mounted on the worktable 1. One end of the adjustment screw 103 is horizontally connected to the output shaft of the adjustment motor 102, and the adjustment screw 103 is positioned along the connection direction of the two cutting frames 301. The adjustment screw seat 105 is connected to one side of the cutting frame 301, and the adjustment screw 103 is threadedly connected to the adjustment screw seat 105. The adjustment guide rail 104 is positioned on the top surface of the worktable 1 along the direction of the adjustment screw, and the cutting frame 301 is slidably connected to the adjustment guide rail 104.

[0040] Reference Figure 2 and Figure 3 A central slide rail 9 is connected to the top surface of the workbench 1 along the connection direction between the detection component 2 and the cutting component 3. The central slide rail 9 is simultaneously positioned between two detection frames 23 and two cutting frames 301. A sliding plate 8 is horizontally slidable on the central slide rail 9. A support frame 6 and a material unloading frame 7 are mounted on the sliding plate 8. The support frame 6 is located on the side of the sliding plate 8 closest to the detection component 2, and the material unloading frame 7 is located on the side of the sliding plate 8 closest to the cutting component 3. Figure 4The support frame 6 includes a support plate 61, mounting blocks 62, clamping and positioning blocks 63, positioning end plates 64, lifting support rods 65, lifting abutment rods 66, a first abutment spring 67, a first roller 68, and a top support vertical rod 69. The lifting support rods 65 and 66 are both vertically fixed to the bottom surface of the support plate 61. The length of the lifting abutment rod 66 is greater than the length of the lifting support rod 65. The first roller 68 is connected to the bottom end of the lifting abutment rod 66. Several mounting blocks 62 are arranged along the width direction on the top surface of the support plate 61. One clamping and positioning block 63 is provided at each end of the length direction of the top surface of each mounting block 62, and the distance between two clamping and positioning blocks 63 is equal to the width of the soft-pack battery cell body 01. One positioning end plate 64 is vertically provided at each opposite end of the support plate 61 along its length direction, and the distance between two positioning ends corresponds to the length of the soft-pack battery cell body 01. The top support rod 69 is vertically fixed to the top surface of the sliding plate 8, and the support plate 61 has a connecting hole 611 corresponding to the position of the top support rod 69.

[0041] Referring to Figure 4, two first guide rails 15 are arranged parallel to the length of the central slide rail 9 on the top surface of the workbench 1. The two first guide rails 15 are respectively arranged on both sides of the central slide rail 9, and the top surface of the first guide rail 15 is provided with a first guide groove along its length. Two lifting abutment rods 66 are provided on the bottom surface of the support plate 61, and the two lifting abutment rods 66 are arranged one-to-one with the two first guide rails 15. The lifting abutment rods 66 and the lifting support rods 65 both pass through the sliding plate 8 and are slidably connected to it. The first abutment spring 67 is sleeved on the lifting abutment rod 66. One end of the first abutment spring 67 is connected to the bottom end of the lifting abutment rod 66, and the other end abuts against the bottom surface of the sliding plate 8. The first roller 68 is pressed against the inner bottom wall of the first guide groove under the action of the first abutment spring 67.

[0042] Reference Figure 4-6 The first guide rail 15 includes a first guide section 151 and a second guide section 152. The top surface height of the first guide section 151 is higher than the top surface height of the second guide section 152. The first guide section 151 is located on the side closer to the detection component 2. When the support frame 6 is above the first guide section 151, the top surface height of the mounting block 62 is between two corresponding clamped detection blocks 21 on the same detection frame 23. When the support frame 6 moves above the second guide section 152, the height of the positioning end plate 64 is lower than the height of the top of the abutment block 310. At this time, the top surface height of the top support rod 69 is the same as the top surface height of the abutment block 310. The edge of the abutment block 310 is provided with a clearance groove 16 corresponding to the support plate 61.

[0043] Reference Figure 2 and Figure 7The unloading rack 7 includes an unloading support plate 71, an unloading edge 72, a rotating cylinder 73, a clearance cylinder 74, unloading sleeves 75, an unloading slide bar 76, a second abutment spring 77, and a second roller 78. Two unloading sleeves 75 are vertically arranged on the sliding plate 8, passing through and slidably connected to it. One second roller 78 is provided at the bottom end of each unloading sleeve 75. One unloading slide bar 76 is slidably arranged in each unloading sleeve 75, its top end rotatably connected to the bottom surface of the unloading support plate 71. The rotating cylinder 73 is rotatably mounted on the unloading slide bar 76, and its output shaft is rotatably connected to the bottom surface of the unloading support plate 71. The clearance cylinder 74 is connected to the unloading sleeves 75, and its output shaft extends vertically upward and connects to the unloading slide bar 76. The bottom end of the feeding sleeve 75 is connected to the second roller 78.

[0044] Reference Figure 4 and Figure 7 Two second guide rails 17 are arranged parallel to the length of the central slide rail 9 on the top surface of the workbench 1. The two second guide rails 17 are respectively located on both sides of the central slide rail 9, and a second guide groove is formed on the top surface of the second guide rail 17 along its length. A second abutment spring 77 is sleeved on the unloading sleeve rod 75. One end of the second abutment spring 77 is connected to the bottom end of the unloading sleeve rod 75, and the other end abuts against the bottom surface of the sliding plate 8. The second roller 78 is pressed against the inner bottom wall of the second guide groove under the action of the second abutment spring 77. The second guide rail 17 includes a third guide section 171 and a fourth guide section 172. The third guide section 171 is located at one end near the detection component 2, and the height of the third guide section 171 is lower than the height of the fourth guide section 172. The position of the transition section between the third guide section 171 and the fourth guide section 172 corresponds to the position of the cutting frame 301.

[0045] Reference Figure 2 and Figure 4 A support plate 18 is vertically mounted on the top surface of the workbench 1 at the end furthest from the detection component 2. A first control switch 19 is located on the side of the support plate 18 near the sliding plate 8, and the first control switch 19 is electrically connected to a rotary cylinder 73 and a clearance cylinder 74. A discharge ramp 20 is connected to the side of the support plate 18 furthest from the sliding plate 8. A finished product collection box 24 is located on one side of the workbench 1, corresponding to the bottom end of the discharge ramp 20. The discharge edge 72 is located on the side of the discharge tray 71 furthest from the support plate 18. Figure 4 and Figure 7A mounting plate 25 is vertically connected to the end of the central slide rail 9 away from the supporting vertical plate 18. A second control switch 26 is provided on the side of the mounting plate 25 near the sliding plate 8. The second control switch 26 is electrically connected to the rotating cylinder 73 and the yielding cylinder 74. When the support frame 6 moves with the sliding plate 8 to a position close to the detection frame 23, the sliding plate 8 abuts against the second control switch 26.

[0046] Reference Figure 4 and Figure 6 When processing the soft-pack battery cell body 01, the soft-pack battery cell body 01 to be processed is placed above the support plate 61. Two positioning end plates 64 and several pairs of clamping positioning blocks 63 position the soft-pack battery cell body 01 so that it corresponds to the detection station position of the detection component 2. At this time, the tabs 02 on the soft-pack battery cell body 01 are located between the corresponding two clamping detection blocks 21. When performing OCV testing on the soft-pack battery cell body 01, the two clamping detection blocks 21 move closer to each other under the action of the clamping cylinder 22 and clamp the tabs 02, thereby realizing the OCV testing of the soft-pack battery cell body 01. After the inspection is completed, the sliding plate 8 moves along the length of the central slide rail 9 under the drive of the drive source (not shown in the attached figure). The lifting abutment rod 66 slides along the first guide rail 15. When the support frame 6 moves from the first guide section 151 to the second guide section 152, the height of the lifting plate decreases. The top of the top support rod 69 passes through the connecting hole 611 through the support plate 61. The top of the top support rod 69 supports the soft-pack battery cell body 01, so that its height corresponds to the top surface of the abutment block 310. During the cutting process, both ends of the support plate 61 move into the relief groove 16 of the abutment block 310, avoiding the edge of the support plate 61 from affecting the cutting of the soft-pack battery cell body 01. The support frame 6 enables the transportation of the soft-pack battery cell body 01, which helps to speed up its processing efficiency.

[0047] Reference Figure 5 and Figure 6 At this point, the two plastic edges 03 correspond one-to-one with the two cutting components 3, and the plastic edges 03 are located between the abutment block 310 and the cutting blade 309. The cutting cylinder 303 drives the stamping block 304 and the connecting base block 308 to move downwards. The clamping block 306 first presses the tab 02 against the top of the abutment block 310 to prevent the soft-pack battery cell body 01 from shaking during the cutting process. At this time, the cutting cylinder 303 continues to drive, the clamping spring 311 is compressed and accumulates elastic potential energy, the sliding ring block 305 slides relative to the connecting base block 308, and the cutting blade 309 continues to move downwards with the connecting base block 308 and the stamping block 304 and cuts off the plastic edges 03. The cut plastic edges 03 fall into the discharge pipe 11 through the first discharge port 4 and the second discharge port 5, and fall into the waste collection box 13 for collection through the guide inclined plate 12.

[0048] Reference Figure 4 , Figure 5 and Figure 7 After cutting, the stamping block 304 moves upward and lifts, while the sliding ring block 305 resets under the action of the compression spring 311. Simultaneously with cutting, the sliding plate 8 slides in the opposite direction to one end near the detection component 2, supporting and transporting the next round of soft-pack battery cell body 01 to be cut. At this time, the unloading tray 71 moves with the sliding plate 8 to a position diagonally below the soft-pack battery cell body being cut. After cutting, the unloading rack 7 slides along the central slide rail 9 away from the detection component 2, following the sliding plate 8. Figure 1 and Figure 2 As the feeding slide bar 76 moves from the third guide section 171 to the fourth guide section 172, the feeding tray 71 gradually rises and contacts the bottom surface of the cut soft-pack battery cell body 01, removing it from between the two cutting frames 301. The feeding edge 72 reduces the possibility of the soft-pack battery cell body 01 falling off the feeding tray 71 during the feeding process. When the sliding plate 8 moves to abut against the support vertical plate 18, the first control switch 19 is pressed, and the feeding tray 71 rotates under the drive of the rotating cylinder 73, pouring the cut soft-pack battery cell body 01 onto the feeding inclined plate 20. The soft-pack battery cell body 01 falls into the finished product collection box 24 for collection. At the same time, the clearance cylinder 74 drives the feeding slide bar 76 to descend, and also lowers the feeding tray 71, preventing the feeding tray 71 from pushing down the soft-pack battery cell body 01 that has just been transported to the cutting assembly 3 by the support frame 6 when the sliding plate 8 moves back. When the sliding plate 8 returns to its original position next to the detection component 2, the second control switch 26 is pressed, activating the rotary cylinder 73 and the clearance cylinder 74 to reset the unloading slide bar 76 and the unloading tray 71, preparing for the next round of unloading operations on the soft-pack battery cell body 01. For soft-pack battery cell bodies 01 of different lengths, the spacing between the two cutting frames 301 can be adjusted using the spacing adjustment component 10, expanding the applicability of the device.

[0049] The implementation principle of the OCV testing and cutting device for a pouch cell in this embodiment is as follows: When processing the pouch cell body 01, the pouch cell body 01 to be processed is placed above the support plate 61, and two clamping detection blocks 21 clamp the tabs 02, thus realizing OCV testing. After the test is completed, the sliding plate 8 moves, and the support frame 6 enables the transportation of the pouch cell body 01, which helps to speed up the processing efficiency. The cutting component 3 simultaneously cuts off the plastic edges 03 at both ends of the pouch cell body 01.

[0050] After cutting, the unloading rack 7 slides on the central slide rail 9 in a direction away from the detection component 2, and the unloading tray 71 removes the soft-pack battery cell body 01 from between the two cutting frames 301, realizing automatic unloading. This process is repeated, realizing the simultaneous execution of detection, cutting, unloading, and transportation, thus improving the production efficiency of the soft-pack battery cell body 01.

[0051] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. An OCV testing and cutting device for pouch cells, characterized in that: The device includes a workbench (1), a detection component (2), and a cutting component (3). Both the cutting component (3) and the detection component (2) are mounted on the workbench (1). The detection component (2) includes a clamping detection block (21) and a detection frame (23). Two detection frames (23) are vertically arranged. Two clamping detection blocks (21) are slidably arranged on each detection frame (23). A first driving member is provided on each detection frame (23) for driving the clamping detection blocks (21) to move vertically. The cutting component (3) includes a cutting frame (301). The worktable (1) includes an abutment block (310) and a cutting blade (309). Two cutting frames (301) are provided on the worktable (1). One abutment block (310) and one cutting blade (309) are provided in each cutting frame (301). The cutting blade (309) is positioned above the cutting frame (301). A second driving member is provided on the cutting frame (301) for driving the cutting blade (309) to move vertically. A central slide rail (9) is provided on the worktable (1) along the line connecting the detection component (2) and the cutting component (3). The central slide rail (9) is simultaneously disposed between the two detection frames (23) and the two cutting frames (301). A sliding plate (8) is slidably disposed on the central slide rail (9), and a support frame (6) is disposed on the sliding plate (8). The cutting assembly (3) further includes a connecting bottom block (308), a stamping block (304), a sliding ring block (305), and a clamping block (306). The stamping block (304) is slidably disposed in the cutting frame (301) in the vertical direction. The connecting bottom block (308) is connected to the bottom surface of the stamping block (304). The cutting blade (309) is provided with... The sliding ring block (305) is slidably disposed on the outside of the connecting base block (308) and the pressing block (306) is disposed on the bottom surface of the sliding ring block (305) and attached to one side of the cutting blade (309). The pressing block (306) is disposed vertically corresponding to the abutment block (310). A pressing spring (311) is disposed between the sliding ring block (305) and the stamping block (304). In its natural state, the height of the bottom surface of the pressing block (306) is lower than the height of the bottom edge of the cutting blade (309).

2. The OCV testing and cutting equipment for soft-pack battery cells according to claim 1, characterized in that: The support frame (6) includes a support plate (61), a lifting support rod (65), and a lifting abutment rod (66). The support plate (61) is horizontally arranged on the sliding plate (8). The lifting abutment rod (66) and the lifting support rod (65) are both vertically arranged on the bottom surface of the sliding plate (8) and connected to the sliding plate (8). Several mounting blocks (62) are arranged along the width direction on the top surface of the support plate (61). A clamping positioning block (63) is connected to both ends of the top surface of the mounting block (62) in the length direction. The distance between two clamping positioning blocks (63) corresponds to the width of the soft-pack battery cell body (01). A positioning end plate (64) is arranged at both ends of the length direction of the support plate (61). The distance between two positioning end plates (64) corresponds to the length of the soft-pack battery cell body (01).

3. The OCV testing and cutting equipment for soft-pack battery cells according to claim 2, characterized in that: The lifting abutment rod (66) and the lifting support rod (65) both pass through the sliding plate (8) and are slidably connected thereto. A first guide rail (15) is provided on the worktable (1) along the length direction of the central slide rail (9). The first guide rail (15) includes a first guide section (151) and a second guide section (152) connected together. The first guide section (151) is located near the detection component (2), and the second guide section (152) is located near one end of the cutting component (3). The height of the first guide section (151) is higher than the height of the second guide section (152). The bottom end of the lifting abutment rod (66) slides against the top surface of the first guide rail (15). When the lifting abutment rod (66) slides against the first guide rail (15), the first guide rail (65) is slidably connected to the top surface of the first guide rail (15). When the segment (151) abuts, the top surface height of the support plate (61) is located between the two corresponding clamping detection blocks (21). When the lifting abutting rod (66) abuts with the second guide segment (152), the support plate (61) moves between the two cutting frames (301). At this time, the height of the support plate (61) is lower than the top height of the abutting block (310). The edge of the abutting block (310) is provided with a clearance groove (16) corresponding to the positioning end plate (64). A top support rod (69) is vertically provided on the sliding plate (8). A connecting hole (611) corresponding to the top support rod (69) is provided on the support plate (61). The top height of the top support rod (69) is set to correspond to the top height of the abutting block (310).

4. The OCV testing and cutting equipment for soft-pack battery cells according to claim 1, characterized in that: The abutment block (310) is provided with a first discharge port (4), and a discharge pipe (11) is provided below the abutment block (310). The discharge pipe (11) is connected to the first discharge port (4). A guide plate (12) is connected to the bottom end of the discharge pipe (11). A waste collection box (13) corresponding to the guide plate (12) is provided below the workbench (1).

5. The OCV testing and cutting equipment for pouch cells according to claim 3, characterized in that: A feeding rack (7) is provided on the sliding plate (8). The feeding rack (7) is located at one end of the support frame (6) near the cutting assembly (3). The feeding rack (7) includes a feeding support plate (71), a feeding sleeve rod (75), and a feeding slide rod (76). The feeding sleeve rod (75) vertically passes through the sliding plate (8) and is slidably connected to it. The bottom end of the feeding sleeve rod (75) is slidably disposed in the feeding sleeve rod (75). The feeding support plate (71) is located at the top end of the feeding slide rod (76). The top surface of the workbench (1) is along the central slide rail ( 9) A second guide rail (17) is provided along its length. The bottom end of the unloading sleeve (75) slides against the top surface of the second guide rail (17). The second guide rail (17) includes a third guide section (171) and a fourth guide section (172). The third guide section (171) is located near the end of the detection component (2). The height of the top surface of the third guide section (171) is lower than the height of the top surface of the fourth guide section (172). The transition section between the third guide section (171) and the fourth guide section (172) corresponds to the position of the cutting component (3).

6. The OCV testing and cutting equipment for soft-pack battery cells according to claim 1, characterized in that: The cutting frame (301) is slidably disposed with the worktable (1). The sliding direction of the cutting frame (301) is perpendicular to the length direction of the central slide rail (9). The worktable (1) is provided with two connecting ports (101) for accommodating the cutting frame (301). The two connecting ports (101) are respectively disposed with the two cutting frames (301). The worktable (1) is provided with a third driving member for driving the cutting frame (301) to move.

7. The OCV testing and cutting equipment for soft-pack battery cells according to claim 5, characterized in that: The workbench (1) is provided with a feeding ramp (20) at one end away from the detection component (2). A finished product collection box (24) corresponding to the bottom end of the feeding ramp (20) is provided on one side of the workbench (1). The feeding tray (71) is rotatably connected to the feeding slide (76). A rotating cylinder (73) is rotatably provided on the feeding slide (76). The output shaft of the rotating cylinder (73) is rotatably connected to the bottom surface of the feeding tray (71).

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