Laser die cutting and laminating all-in-one machine

Abstract

The utility model discloses a laser die cutting and laminating all-in-one machine which comprises a machine frame, a first supply device, a second supply device, a laminating device, a diaphragm unwinding device and a diaphragm pulling device, the second supply device and the first supply device are symmetrically arranged in a front-back mode, and the diaphragm unwinding device and the diaphragm pulling device are both located in front of the laminating device and located above the laminating device. The multi-pole-piece cutting machine further comprises a first multi-pole-piece deviation rectifying and positioning device, a second multi-pole-piece deviation rectifying and positioning device, a multi-pole-piece transferring device, a battery cell cutting device and a discharging mechanical arm. The first supply device further comprises a first laser die cutting mechanism arranged on the rack, and the second supply device further comprises a second laser die cutting mechanism arranged on the rack. The lamination device comprises a lamination translation linear module arranged on the rack, a lamination mounting plate arranged at the top end of the lamination translation linear module, a lamination table arranged at the top end of the lamination mounting plate and a front hot cutting mechanism. According to the utility model, the production time can be reduced, the production efficiency is improved, and the production cost is reduced.

Description

Technical Field

[0001] This utility model relates to the field of battery production technology, specifically to a laser die-cutting and stacking integrated machine. Background Technology

[0002] Existing integrated cutting and stacking machines generally include a first supply device, a second supply device arranged symmetrically to the first supply device, a stacking device, a diaphragm unwinding device, a diaphragm stretching device, a diaphragm cutting device, a first transfer robot, a first correction and positioning device, a second transfer robot, and a second correction and positioning device. The first supply device includes a first unwinding mechanism, a first cutting mechanism, a first detection mechanism, and a first conveyor line arranged sequentially from left to right. The second supply device includes a second unwinding mechanism, a second cutting mechanism, a second detection mechanism, and a second conveyor line arranged sequentially from left to right. This type of integrated cutting and stacking machine cannot perform laser cutting on one side of the positive electrode strip and one side of the negative electrode strip to form multiple positive electrode tabs on one side of the positive electrode strip and multiple negative electrode tabs on one side of the negative electrode strip. Therefore, in the production of battery cells, other equipment, such as a laser tab forming machine, is generally used to laser cut the tabs on one side of the positive electrode strip and one side of the negative electrode strip respectively. Then, the first unwinding mechanism and the second unwinding mechanism unwind the positive electrode strip with multiple positive electrode tabs and the negative electrode strip with multiple negative electrode tabs respectively. Then, the first cutting mechanism and the second cutting mechanism cut the positive electrode strip and the negative electrode strip into positive electrode sheets and negative electrode sheets respectively. Finally, the first inspection mechanism and the second inspection mechanism inspect the dimensions and surface defects of the positive electrode sheets and negative electrode sheets respectively. The process involves several steps: First, a positive electrode sheet is detected. Then, positive and negative electrode sheets are transported via a first and second conveyor line, respectively. A diaphragm unwinding device lays the unwound diaphragm onto the stacking table of a stacking device. A diaphragm cutting device then cuts the diaphragm. A first transfer robot then moves a positive electrode sheet from the first conveyor line to a first alignment and positioning device for alignment and positioning, and then moves the aligned positive electrode sheet to the stacking table of the stacking device for stacking. Similarly, a second transfer robot moves a negative electrode sheet from the second conveyor line to a second alignment and positioning device for alignment and positioning, and then moves the aligned negative electrode sheet to the stacking table of the stacking device for stacking. The stacking of positive and negative electrode sheets is performed alternately. A layer of diaphragm is laid before each electrode sheet is moved to the stacking table, thus obtaining the battery cell.

[0003] Because it requires laser cutting of tabs on one side of the positive electrode strip and one side of the negative electrode strip using other equipment, such as a laser tab forming machine, production time is increased, production efficiency is reduced, and production costs are increased. In addition, the first transfer robot can only handle one positive electrode at a time, the second transfer robot can only handle one negative electrode at a time, the first correction and positioning device can only correct and position one positive electrode at a time, and the second correction and positioning device can only correct and position one negative electrode at a time. Therefore, only one electrode can be stacked at a time, and only one battery cell can be produced at a time, which further increases production time, reduces production efficiency, and increases production costs. Utility Model Content

[0004] To overcome the shortcomings of existing technologies, this utility model provides a laser die-cutting and stacking integrated machine, which can reduce production time, improve production efficiency, and reduce production costs.

[0005] The technical solution adopted by this utility model to solve its technical problem is:

[0006] A laser die-cutting and stacking integrated machine includes a frame, a first supply device, a second supply device symmetrically arranged front and rear to the first supply device, a stacking device, a diaphragm unwinding device, and a diaphragm stretching device. The first supply device includes a first unwinding mechanism, a first cutting mechanism, a first detection mechanism, and a first conveyor line arranged sequentially from left to right on the frame. The second supply device includes a second unwinding mechanism, a second cutting mechanism, a second detection mechanism, and a second conveyor line arranged sequentially from left to right on the frame. The diaphragm unwinding device and the diaphragm stretching device are both located in front of and above the stacking device. The machine also includes a first multi-electrode alignment and positioning device, a second multi-electrode alignment and positioning device, a multi-electrode transfer device, a cell slitting device, and a unloading robot. The first multi-electrode alignment and positioning device, the second multi-electrode alignment and positioning device, the multi-electrode transfer device, the cell slitting device, and the unloading robot are all mounted on the frame. The multi-electrode transfer device is located on the first conveyor line. Between the first and second conveyor lines, the stacking device, the first multi-electrode correction and positioning device, and the second multi-electrode correction and positioning device are all located within the multi-electrode transfer device. The cell slitting device is located to the right of the stacking device and the first multi-electrode correction and positioning device. The unloading robot is located between the stacking device and the cell slitting device. The first supply device also includes a first laser die-cutting mechanism mounted on the frame, located between the first unwinding mechanism and the first cutting mechanism. The second supply device also includes a second laser die-cutting mechanism mounted on the frame, located between the second unwinding mechanism and the second cutting mechanism. The stacking device includes a stacking translation linear module mounted on the frame, a stacking mounting plate mounted at the top of the stacking translation linear module, a stacking platform mounted at the top of the stacking mounting plate, and a front hot-cutting mechanism mounted at the top of the stacking mounting plate. The front hot-cutting mechanism is located in front of the stacking platform.

[0007] The beneficial effects of this utility model are as follows: By using a first laser die-cutting mechanism and a second laser die-cutting mechanism, one side of the positive electrode strip and one side of the negative electrode strip can be laser-cut respectively, forming multiple positive electrode tabs on one side of the positive electrode strip and multiple negative electrode tabs on one side of the negative electrode strip. This eliminates the need for separate laser cutting of the positive and negative electrode strips using other equipment, such as a laser tab forming machine, before cell production, reducing production time, improving efficiency, and lowering costs. Furthermore, by using a first multi-electrode alignment and positioning device, a second multi-electrode alignment and positioning device, a multi-electrode transfer device, a cell slitting device, and a material unloading robot, multiple electrode sheets can be stacked at once, enabling the production of multiple individual cells simultaneously, further reducing production time, improving efficiency, and lowering costs. Attached Figure Description

[0008] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0009] Figure 1 This is a schematic diagram of the structure of a laser die-cutting and stacking integrated machine according to an embodiment of the present invention;

[0010] Figure 2 yes Figure 1 A schematic diagram of the structure of the second laser die-cutting mechanism of the second supply device of the laser die-cutting and stacking integrated machine shown;

[0011] Figure 3 yes Figure 2 The diagram shows the structure of the second laser die-cutting mechanism after removing the anti-reverse roller assembly from the cutting roller structure.

[0012] Figure 4 yes Figure 2 A schematic diagram of the anti-reverse roller assembly of the cutting roller structure of the second laser die-cutting mechanism shown;

[0013] Figure 5 yes Figure 2 A schematic diagram of the laser cutting structure of the second laser die-cutting mechanism is shown.

[0014] Figure 6 yes Figure 1 The diagram shows the structure of the lamination device in the laser die-cutting and lamination integrated machine.

[0015] Figure 7 yes Figure 6 An exploded schematic diagram of the stacked device shown.

[0016] Figure 8 yes Figure 6 A schematic diagram of the stacking stage of the stacking device shown, after the stacking base is removed;

[0017] Figure 9 yes Figure 6 A schematic diagram of the stacking stage, front hot cutting mechanism, and rear hot cutting mechanism of the stacking device shown;

[0018] Figure 10 yes Figure 1 The diagram shows the structure of the first multi-pole sheet correction and positioning device of the laser die-cutting and stacking integrated machine.

[0019] Figure 11 yes Figure 1 The diagram shows the structure of the multi-pole sheet transfer device of the laser die-cutting and stacking integrated machine.

[0020] Figure 12 yes Figure 11 A schematic diagram of the structure of the second external suction cup manipulator of the multi-polar plate transfer device shown;

[0021] Figure 13 yes Figure 11 A schematic diagram of the structure of the second inner suction cup manipulator of the multi-polar plate transfer device shown;

[0022] Figure 14 yes Figure 1 The diagram shows the structure of the cell slitting device in the laser die-cutting and stacking integrated machine.

[0023] Figure 15 yes Figure 14 The diagram shows the structure of the slitting fixture in the battery cell slitting device.

[0024] Figure 16 yes Figure 14 The diagram shows the structural schematic of the slitting mechanism of the battery cell slitting device.

[0025] Figure 17 yes Figure 16 An exploded view of the cutting mechanism shown.

[0026] Figure 18 yes Figure 1 The diagram shows the structure of the unloading robot of the laser die-cutting and stacking integrated machine;

[0027] Figure 19 yes Figure 18 The diagram shows the structure of the unloading robot after removing the unloading base, the unloading translation linear module, and the unloading lifting linear module. Detailed Implementation

[0028] The following will clearly and completely describe the concept, specific structure, and technical effects of this utility model in conjunction with embodiments and accompanying drawings, so as to fully understand the purpose, features, and effects of this utility model. Obviously, the described embodiments are only a part of the embodiments of this utility model, not all of them. Other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are all within the scope of protection of this utility model. Furthermore, all connections / linkages involved in the patent do not simply refer to direct contact between components, but rather to the ability to form a better connection structure by adding or reducing connecting accessories according to specific implementation conditions. The various technical features in this utility model can be combined interactively without contradicting each other.

[0029] Please refer to Figure 1An embodiment of this utility model provides a laser die-cutting and stacking integrated machine, including a frame, a first supply device 10, a second supply device 20 arranged symmetrically with the first supply device 10, a stacking device 30, a diaphragm unwinding device 40, a diaphragm pulling device 50, a first multi-electrode correction and positioning device 60a, a second multi-electrode correction and positioning device 60b, a multi-electrode transfer device 70, a cell slitting device 80, and a material unloading robot 90.

[0030] The first supply device 10 includes, from left to right, a first unwinding mechanism 11, a first laser die-cutting mechanism 12, a first cutting mechanism 13, a first inspection mechanism 14, and a first conveyor line 15, all arranged on a frame. The first unwinding mechanism 11 unwinds the positive electrode strip. The first laser die-cutting mechanism 12 laser-cuts one side (e.g., the rear side) of the positive electrode strip to form multiple positive electrode tabs on one side, spaced apart along the length of the strip. The first cutting mechanism 13 cuts the strip into positive electrode sheets along its width, each sheet having one tab on one side (e.g., the rear side). The first inspection mechanism 14 inspects the dimensions and surface defects of the positive electrode sheets. The first conveyor line 15 conveys the positive electrode sheets. The second supply device 20 includes, from left to right, a second unwinding mechanism 21, a second laser die-cutting mechanism 22, a second cutting mechanism 23, a second inspection mechanism 24, and a second conveyor line 25, all sequentially arranged on a frame. The second unwinding mechanism 21 unwinds the negative electrode sheet material strip. The second laser die-cutting mechanism 22 laser-cuts one side, such as the front side, of the negative electrode sheet material strip to form multiple negative electrode tabs on one side, which are spaced apart along the length of the negative electrode sheet material strip. The second cutting mechanism 23 cuts the negative electrode sheet material strip into negative electrode sheets along the width direction, with each negative electrode sheet having one negative electrode tab on one side, such as the front side. The second inspection mechanism 24 performs dimensional and surface defect inspection on the negative electrode sheets. The second conveyor line 25 conveys the negative electrode sheets.

[0031] The stacking device 30 includes a stacking translation linear module (not shown in the figure) mounted on a frame, a stacking mounting plate (not shown in the figure) mounted on top of the stacking translation linear module, a stacking table 31, two first pressing mechanisms 35, two second pressing mechanisms 36, a front hot cutting mechanism 38, and a rear hot cutting mechanism 39. The stacking table 31, the two first pressing mechanisms 35, the two second pressing mechanisms 36, the front hot cutting mechanism 38, and the rear hot cutting mechanism 39 are all located on top of the stacking mounting plate. The stacking translation linear module is used to drive the stacking mounting plate to move left and right, thereby driving the stacking table 31, the two first pressing mechanisms 35, the two second pressing mechanisms 36, the front hot cutting mechanism 38, and the rear hot cutting mechanism 39 to move left and right. Two first pressing mechanisms 35 are arranged facing each other from left to right, and two second pressing mechanisms 36 are also arranged facing each other from left to right. The second pressing mechanism 36 on the left corresponds to the first pressing mechanism 35 on the left, and the second pressing mechanism 36 on the right corresponds to the first pressing mechanism 35 on the right. The two second pressing mechanisms 36 are used to press down both sides of the diaphragm on the stacking table 31, and the two first pressing mechanisms 35 are used to press down the ends of the first negative electrode sheet and the last negative electrode sheet that are away from the center of the stacking table 31, and to press down the ends of the first positive electrode sheet and the last positive electrode sheet that are away from the center of the stacking table 31, respectively. The front hot cutting mechanism 38 and the rear hot cutting mechanism 39 are arranged facing each other from front to back, with the front hot cutting mechanism 38 located in front of the stacking table 31 and the rear hot cutting mechanism 39 located behind the stacking table 31. A front hot-cutting mechanism 38 is used to cut the separator and seal the front edge of the entire battery cell, while a rear hot-cutting mechanism 39 is used to seal the rear edge of the entire battery cell. A separator unwinding device 40 is used to unwind the separator. A separator pulling device 50 is used to clamp the separator and move it backward to lay the separator on the stacking table 31, on multiple negative electrode sheets on the stacking table 31, and on multiple positive electrode sheets on the stacking table 31. A first multi-electrode alignment and positioning device 60a is mounted on the frame and is used to align and position multiple positive electrode sheets. A second multi-electrode alignment and positioning device 60b is mounted on the frame and is positioned opposite to the first multi-electrode alignment and positioning device 60a; the second multi-electrode alignment and positioning device 60b is used to align and position multiple negative electrode sheets. A stacking device 30 is located between the first multi-electrode alignment and positioning device 60a and the second multi-electrode alignment and positioning device 60b.The multi-electrode transfer device 70 is mounted on the frame and located between the first conveyor line 15 and the second conveyor line 25. It is used to transfer multiple positive electrodes from the first conveyor line 15 to the first multi-electrode correction and positioning device 60a, to transfer multiple negative electrodes from the second conveyor line 25 to the second multi-electrode correction and positioning device 60b, to transfer multiple positive electrodes from the first multi-electrode correction and positioning device 60a to the diaphragm of the stacking stage 31, and to transfer multiple negative electrodes from the second multi-electrode correction and positioning device 60b to the diaphragm of the stacking stage 31. The stacking device 30, the first multi-electrode correction and positioning device 60a, and the second multi-electrode correction and positioning device 60b are all located within the multi-electrode transfer device 70. A diaphragm unwinding device 40 is positioned at the top of the multi-electrode transfer device 70, and a diaphragm pulling device 50 is positioned inside the multi-electrode transfer device 70. The multi-electrode transfer device 70 drives the diaphragm pulling device 50 to move back and forth. Both the diaphragm unwinding device 40 and the diaphragm pulling device 50 are located in front of and above the stacking device 30. A cell slitting device 80 is mounted on the frame and located to the right of the stacking device 30 and the first multi-electrode alignment and positioning device 60a. It is used to slit the entire cell into multiple individual cells. A material unloading robot 90 is mounted on the frame and located between the stacking device 30 and the cell slitting device 80. It is used to transport the entire cell on the stacking table 31 to the cell slitting device 80.

[0032] The structure of the first unwinding mechanism 11 is the same as that of the second unwinding mechanism 21. The structure of the first cutting mechanism 13 is the same as that of the second cutting mechanism 23. The structure of the first detection mechanism 24 is the same as that of the second detection mechanism 24. The structure of the first conveying line 15 is the same as that of the second conveying line 25. The first unwinding mechanism 11, the first cutting mechanism 13, the first detection mechanism 14, the first conveying line 15, the second unwinding mechanism 21, the second cutting mechanism 23, the second detection mechanism 24, the second conveying line 25, the diaphragm unwinding device 40, and the diaphragm pulling device 50 are all existing structures, and will not be described in detail here.

[0033] Combination Figures 2 to 5 As shown, both the first laser die-cutting mechanism 12 and the second laser die-cutting mechanism 22 include a die-cutting machine table 121 mounted on a frame, a cutting roller structure 122, a laser cutting structure 124, a waste collection structure, and a dust removal structure.

[0034] The cutting roller structure 122 includes two roller mounting plates 1221 arranged in a front-to-back configuration, a first roller 1222, a second roller 1223, a third roller 1224, and an anti-reverse roller assembly. The two roller mounting plates 1221 are respectively mounted on the top of the die-cutting machine base 121. The first guide roller 1222, the second guide roller 1223, and the third guide roller 1224 are rotatably disposed between two guide roller mounting plates 1221. Specifically, the inner side of the guide roller mounting plate 1221 is provided with a first mounting hole, a second mounting hole, and a third mounting hole corresponding to the first guide roller 1222, the second guide roller 1223, and the third guide roller 1224, respectively. Both ends of the first guide roller 1222 are rotatably disposed within the first mounting holes of the two guide roller mounting plates 1221, both ends of the second guide roller 1223 are rotatably disposed within the second mounting holes of the two guide roller mounting plates 1221, and both ends of the third guide roller 1224 are rotatably disposed within the third mounting holes of the two guide roller mounting plates 1221. The first guide roller 1222 and the second guide roller 1223 are arranged at a left-right interval. The third guide roller 1224 is located above the first guide roller 1222. The side of the third guide roller 1224 away from the second guide roller 1223 is flush with the side of the first guide roller 1222 away from the second guide roller 1223. When the positive electrode sheet material passes around the side of the third guide roller 1224 away from the second guide roller 1223 and the side of the first guide roller 1222 away from the second guide roller 1223 of the first laser die-cutting mechanism 12, it can ensure that the third guide roller 1224 and the first guide roller 1222 are located in the first laser die-cutting mechanism 12. The positive electrode strip between rollers 222 is vertical, facilitating laser cutting on one side. When the negative electrode strip passes over the side of the third roller 1224 of the second laser die-cutting mechanism 22 away from the second roller 1223 and the side of the first roller 1222 away from the second roller 1223, it ensures that the negative electrode strip between the third roller 1224 and the first roller 1222 of the second laser die-cutting mechanism 22 is vertical, facilitating laser cutting on one side. A roller top plate 1225 is provided at the top of the two roller mounting plates 1221, and the anti-reverse roller assembly is inclined to the upper left and positioned at the top of the roller top plate 1225. The first laser die-cutting mechanism 12 has a backlash roller assembly for clamping the positive electrode sheet material strip, and the second laser die-cutting mechanism 22 has a backlash roller assembly for clamping the negative electrode sheet material strip. The backlash roller assembly includes a backlash frame 1226, an auxiliary drive roller 1227, a backlash motor 1228, a backlash reducer 1229, a pressure roller 1230, a pressure roller frame 1231, and a pressure roller cylinder 1232. The bottom end of the backlash frame 1226 is located at the top end of the roller top plate 1225. The auxiliary drive roller 1227 is close to the roller top plate 1225 and rotatably disposed within the backlash frame 1226. Specifically, the inner walls at both ends of the backlash frame 1226 are provided with two backlash frame mounting holes, and the two ends of the auxiliary drive roller 1227 are rotatably disposed within the two backlash frame mounting holes via, for example, bearings.A stop motor 1228 is mounted on a stop reducer 1229. The output end of the stop motor 1228 is connected to the input end of the stop reducer 1229. The stop reducer 1229 is mounted on the outer wall of one end of the stop frame 1226 via a stop reducer base 12291. One end of the auxiliary drive roller 1227 extends out of the corresponding stop frame mounting hole and is connected to the output end of the stop reducer 1229. A pressure roller frame 1231 is located inside the stop frame 1226 and has an open bottom end. The pressure roller 1230 and the auxiliary drive roller 1227 are arranged opposite to each other and close to the top end of the stop frame 1226. The pressure roller 1230 is rotatably mounted inside the pressure roller frame 1231. Specifically, the inner walls of both ends of the pressure roller frame 1231 are provided with two pressure roller frame mounting holes, and both ends of the pressure roller 1230 are rotatably mounted in the two pressure roller frame mounting holes. The pressure roller cylinder 1232 is located at the top of the anti-reverse frame 1226, and its output end extends into the anti-reverse frame 1226 and connects to the top of the pressure roller frame 1231. The anti-reverse motor 1228 drives the auxiliary drive roller 1227 to rotate via the anti-reverse reducer 1229. The pressure roller cylinder 1232 drives the pressure roller frame 1231 and the pressure roller 1230 to move towards or away from the auxiliary drive roller 1227.

[0035] The laser cutting structure 124 includes a U-shaped cutting base plate 1241, a cutting translation linear module 1242, an adjustment assembly, a cutting mounting plate 1246, a laser 1248, and a cutting cylinder 1247. The U-shaped cutting base plate 1241 can avoid the waste discharge pipe 1265 of the waste collection structure. The cutting translation linear module 1242 is located at the top of the die-cutting machine table 121 and to the left of the cutting roller structure 122. One end of the cutting base plate 1241 is positioned at the top of the cutting translation linear module 1242, and the other end of the cutting base plate 1241 extends between two roller mounting plates 1221 and is slidably positioned at the top of the die-cutting machine table 121. In this embodiment, a pad 1211 is provided at the top of the die-cutting machine table 121, located between the two roller mounting plates 1221. A cutting slide rail 1212 is provided at the top of the pad 1211, and a cutting slider 1213 is slidably engaged with the cutting slide rail 1212. The cutting slider 1213 is positioned at the bottom of the other end of the cutting base plate 1241. An adjustment assembly is positioned at the top of the cutting base plate 1241 and to the left of the cutting roller structure 122. A cutting mounting plate 1246 is positioned at the top of the adjustment assembly. A cutting cylinder 1247 is positioned at the top of the cutting mounting plate 1246 via a cutting cylinder seat 12471. The laser 1248 is located above the cutting cylinder 1247 and connected to the output end of the cutting cylinder 1247. The light outlet of the laser 1248 corresponds to the space between the first guide roller 1222 and the third guide roller 1224. The cutting translation linear module 1242 is used to drive the cutting base plate 1241 to move back and forth, thereby driving the adjustment component, the cutting mounting plate 1246, the cutting cylinder 1247, and the laser 1248 to move back and forth. The adjustment component is used to drive the cutting mounting plate 1246 to move left and right, thereby driving the cutting cylinder 1247 and the laser 1248 to move left and right. By driving the laser 1248 to move left and right, the left and right position of the laser 1248 can be adjusted. The cutting cylinder 1247 is used to drive the laser 1248 to move up and down. The cutting base plate 1241, adjustment assembly, cutting mounting plate 1246, cutting cylinder 1247, and laser 1248 of the second laser die-cutting mechanism 22 are all close to the front roller mounting plate 1221, while the cutting base plate 1241, adjustment assembly, cutting mounting plate 1246, cutting cylinder 1247, and laser 1248 of the first laser die-cutting mechanism 12 are all close to the rear roller mounting plate 1221.

[0036] The adjustment assembly includes an adjustment seat 1243 with an opening at the top, a handwheel 1244, an adjustment screw 1245, and an adjustment nut seat. The adjustment seat 1243 is located at the top of the cutting base plate 1241, and the handwheel 1244 is located to the left of the adjustment seat 1243. The adjustment screw 1245 is located inside the adjustment seat 1243. One end of the adjustment screw 1245 is rotatably mounted in a through hole in the inner wall of one end of the adjustment seat 1243 via a first screw bearing. The other end of the adjustment screw 1245 extends out from a through hole in the inner wall of the other end of the adjustment seat 1243 and is connected to the handwheel 1244. A second screw bearing is provided in the through hole in the inner wall of the other end of the adjustment seat 1243. The second screw bearing is sleeved on the outer circumference of the adjustment screw 1245 to provide rotational support for the adjustment screw 1245. The adjusting nut seat is located within the adjusting base 1243, with its top protruding beyond the top of the adjusting base 1243. The adjusting nut seat is threadedly engaged with the adjusting screw 1245, and the cutting mounting plate 1246 is positioned at the top of the adjusting nut seat. Manually rotating the handwheel 1244 rotates the adjusting screw 1245, which in turn moves the adjusting nut seat left and right, thereby moving the cutting mounting plate 1246 left and right. To improve the smoothness of the movement of the cutting mounting plate 1246, it can be slidably positioned at the top of the adjusting base 1243.

[0037] The waste collection structure includes a first collection mounting plate 1261, a second collection mounting plate 1262, a vacuum belt 1264 with negative pressure air holes, a collection motor 1263, a collection synchronous belt assembly, a first belt roller, two second belt rollers arranged at a distance from each other, and a waste discharge pipe 1265. The first collection mounting plate 1261 is mounted on the top of the cutting base plate 1241 via a collection bracket 12611. The second collection mounting plate 1262 is opposite to the first collection mounting plate 1261 and they are connected by collection connecting rods, the number of which can be set according to actual conditions. In the second laser die-cutting mechanism 22, the second collection mounting plate 1262 is located behind the first collection mounting plate 1261; in the first laser die-cutting mechanism 12, the second collection mounting plate 1262 is located in front of the first collection mounting plate 1261. The first collection mounting plate 1261 and the second collection mounting plate 1262 are located between the first guide roller 1222 and the laser 1248. The collecting motor 1263 is disposed on the side of the first collecting mounting plate 1261 near the second collecting mounting plate 1262. Two second belt rollers are located above the first belt roller, and the first belt roller and the two second belt rollers are rotatably disposed between the first collecting mounting plate 1261 and the second collecting mounting plate 1262. Specifically, the inner side of the first collecting mounting plate 1261 has a first mounting plate through hole corresponding to the first belt roller and two second mounting plate through holes corresponding to the two second belt rollers respectively. The inner side of the second collecting mounting plate 1262 has a third mounting plate through hole corresponding to the first belt roller and two fourth mounting plate through holes corresponding to the two second belt rollers respectively. The two ends of the first belt roller are rotatably disposed in the first mounting plate through hole and the third mounting plate through hole respectively via, for example, bearings. The two ends of the second belt roller are rotatably disposed in the corresponding second mounting plate through hole and the corresponding fourth mounting plate through hole respectively via, for example, bearings. One end of the first belt roller extends out of the second mounting plate through hole and is connected to the output end of the collecting motor 1263 via a collecting synchronous belt assembly. A vacuum belt 1264 is located between the first collection mounting plate 1261 and the second collection mounting plate 1262 and is sleeved on the outer periphery of the first belt roller and the two second belt rollers. The collection connecting rod is located inside the vacuum belt 1264, and the electrode waste can be adsorbed through the negative pressure air holes of the vacuum belt 1264. The waste discharge pipe 1265 passes through the first through hole at the top of the die-cutting machine table 121 and is fixed at the top of the die-cutting machine table 121. Specifically, a waste discharge pipe fixing block is sleeved on the outer periphery of the waste discharge pipe 1265 and is fixed at the top of the die-cutting machine table 121. One end of the waste discharge pipe 1265 is located below the vacuum belt 1264, and the other end of the waste discharge pipe 1265 is located inside the die-cutting machine table 121 and is used to connect to the negative pressure collection system.The dust removal structure includes a dust removal tube 1271, a dust removal seat 1272 above the vacuum belt 1264, the light outlet of the laser 1248 corresponds to the space between the vacuum belt 1264 and the dust removal seat 1272, the dust removal seat 1272 is connected to the first collection mounting plate 1261 through a dust removal plate 1273, the dust removal plate 1273 is located between the dust removal seat 1272, the vacuum belt 1264 and the laser 1248, and the dust removal plate 1273 is provided with a clearance hole, which is used to avoid the laser emitted from the light outlet of the laser 1248. The dust removal pipe 1271 passes through the second through hole at the top of the die-cutting machine base 121 and is fixed at the top of the die-cutting machine base 121. Specifically, a dust removal pipe fixing block is sleeved on the outer periphery of the dust removal pipe 1271 and the dust removal pipe fixing block is fixed at the top of the die-cutting machine base 121. One end of the dust removal pipe 1271 is set at the top of the dust removal seat 1272, and the other end of the dust removal pipe 1271 is located inside the die-cutting machine base 121 and is used to connect to the negative pressure collection system. The dust removal seat 1272 is provided with a dust removal hole that passes through its top and bottom ends. The dust removal hole corresponds to the dust removal pipe 1271 and is connected to the dust removal pipe 1271.

[0038] The collecting timing belt assembly of the first laser die-cutting mechanism 12 is located behind the corresponding first collecting mounting plate 1261, and the collecting timing belt assembly of the second laser die-cutting mechanism 22 is located in front of the corresponding first collecting mounting plate 1261. The output end of the collecting motor 1263 of the first laser die-cutting mechanism 12 passes through the through hole of the corresponding first collecting mounting plate 1261 and is located behind the corresponding first collecting mounting plate 1261. The output end of the collecting motor 1263 of the second laser die-cutting mechanism 22 passes through the through hole of the corresponding first collecting mounting plate 1261. The hole is located in front of the corresponding first collecting mounting plate 1261. The collecting synchronous belt assembly includes a collecting drive wheel, a collecting driven wheel, and a collecting synchronous belt sleeved on the outer periphery of the collecting drive wheel and the collecting driven wheel. The collecting drive wheel is sleeved on the outer periphery of the output end of the collecting motor 1263, and the collecting driven wheel is sleeved on the outer periphery of one end of the first belt roller. The collecting motor 1263 is used to drive the collecting drive wheel to rotate. Under the action of the collecting driven wheel and the collecting synchronous belt, the first belt roller can be driven to rotate, which in turn can drive the two second belt rollers and the vacuum belt 1264 to rotate.

[0039] In practical applications, the positive electrode strip can be unwound via the first unwinding mechanism 11. The unwound positive electrode strip passes between the pressure roller 1230 and the auxiliary drive roller 1227 of the first laser die-cutting mechanism 12, then passes over the top of the third guide roller 1224 of the first laser die-cutting mechanism 12, and around the side of the third guide roller 1224 away from the second guide roller 1223, then passes over the side of the first guide roller 1222 of the first laser die-cutting mechanism 12 away from the second guide roller 1223, and around the bottom of the first guide roller 1222, then passes between the first guide roller 1222 and the second guide roller 1223 of the first laser die-cutting mechanism 12, and then passes over the top of the second guide roller 1223 of the first laser die-cutting mechanism 12. The positive electrode strip can be supported by the first guide roller 1222, the second guide roller 1223 and the third guide roller 1224. In this process, at the initial position, the laser 1248 of the first laser die-cutting mechanism 12 is located behind the positive electrode strip. First, the pressure roller 1230 is driven by the pressure roller cylinder 1232 of the first laser die-cutting mechanism 12 to move towards the auxiliary drive roller 1227, so that the positive electrode strip is clamped by the pressure roller 1230 and the auxiliary drive roller 1227. At the same time, the first unwinding mechanism 11 stops unwinding the positive electrode strip. At this time, the positive electrode strip is in a stationary state, which facilitates laser cutting on one side, such as the rear side, of the positive electrode strip. Then, the laser 1248 of the first laser die-cutting mechanism 12 is started to work, and the laser is driven by the cutting translation linear module 1242 of the first laser die-cutting mechanism 12. The laser 1248 moves forward to a predetermined position, and then the laser 1248 is driven downward to a predetermined position by the cutting cylinder 1247 of the first laser die-cutting mechanism 12. Then, the laser 1248 is driven backward to an initial position by the cutting translation linear module 1242 of the first laser die-cutting mechanism 12. Then, the laser 1248 is driven upward to an initial position by the cutting cylinder 1247 of the first laser die-cutting mechanism 12. During the movement of the laser 1248 of the first laser die-cutting mechanism 12, laser cutting can be performed on one side, such as the rear side, of the positive electrode sheet material strip by the laser emitted from the light outlet of the laser 1248. The travel path of the laser emitted from the light outlet of the laser 1248 is in the shape of "]". After cutting, the pressure roller 1230 is driven by the pressure roller cylinder 1232 of the first laser die-cutting mechanism 12 to move away from the auxiliary drive roller 1227 to loosen the positive electrode strip. Then, the positive electrode strip is unwound by the first unwinding mechanism 11. At the same time, the auxiliary drive roller 1227 is driven to rotate by the anti-reverse motor 1228 of the first laser die-cutting mechanism 12. Thus, the positive electrode strip can be moved to the right by the auxiliary drive roller 1227 to enter the first cutting mechanism 13. After the positive electrode strip has moved a certain distance to the right, one side of the positive electrode strip is laser-cut again in the aforementioned manner. This process is repeated to form multiple positive electrode tabs on one side of the positive electrode strip.During the laser cutting of one side of the positive electrode strip by the laser 1248 of the first laser die-cutting mechanism 12, the cut electrode waste can be adsorbed through the negative pressure air holes of the vacuum belt 1264. The vacuum belt 1264 is driven to rotate by the collection motor 1263, thereby moving the electrode waste to the top of the waste discharge pipe 1265. The negative pressure collection system evacuates the waste discharge pipe 1265 and the dust removal pipe 1271 and releases the electrode waste through the negative pressure air holes of the vacuum belt 1264. Thus, the electrode waste can be discharged into the negative pressure collection system through the waste discharge pipe 1265, and the dust generated during the cutting process can be discharged into the negative pressure collection system through the dust removal holes of the dust removal seat 1272 and the dust removal pipe 1271. After the positive electrode strip enters the first cutting mechanism 13, it can be cut into positive electrode sheets. Each positive electrode sheet has a positive electrode tab. Then the positive electrode sheet enters the first inspection mechanism 14. The first inspection mechanism 14 can perform size inspection and surface defect inspection on the positive electrode sheet. Unqualified positive electrode sheets are rejected by the first inspection mechanism 14 and placed into the positive electrode sheet NG box. Qualified positive electrode sheets are conveyed to the first conveyor line 15 through the first inspection mechanism 14. The positive electrode sheets can then be conveyed through the first conveyor line 15.

[0040] The working principle of the second unwinding mechanism 21 is the same as that of the first unwinding mechanism 11. The working principle of the second laser die-cutting mechanism 22 is the same as that of the first laser die-cutting mechanism 12. The only difference is that in the initial position, the laser 1248 of the second laser die-cutting mechanism 22 is located in front of the negative electrode sheet. The laser 1248 is driven to move in the opposite direction to the laser 1248 of the first laser die-cutting mechanism 12 by the cutting translation linear module 1242 of the second laser die-cutting mechanism 22. The path of the laser emitted from the light outlet of the laser 1248 of the second laser die-cutting mechanism 22 is "[". The working principle of the second cutting mechanism 23 is the same as that of the first cutting mechanism 13. The working principle of the second detection mechanism 24 is the same as that of the first detection mechanism 14. The working principle of the second conveyor line 25 is the same as that of the first conveyor line 15. These will not be described in detail here.

[0041] Combination Figures 6 to 9As shown, the stacking table 31 includes a stacking base 311 disposed at the top of the stacking mounting plate, two stacking support plates 312 arranged side by side, a stacking bottom plate 313, and two supplementary components. The two stacking support plates 312 are connected to each other. The bottom end of the stacking support plate 312 is provided with two stacking support plates 314 arranged at intervals, and both stacking support plates 314 are disposed at the top of the stacking bottom plate 313. The bottom end of the stacking bottom plate 313 is provided with two stacking connecting plates 315, and the two stacking connecting plates 315 are connected to the stacking connecting post at the top of the stacking base 311. The stacking support plate 312 is provided with multiple through holes penetrating its top and bottom ends, and the multiple through holes are arranged at intervals from left to right. The multiple through holes correspond to the multiple lower grippers 982 of the unloading robot 90.

[0042] Two alignment components correspond to two lamination support plates 312, respectively. Each alignment component includes multiple alignment blocks 316, an alignment mounting plate 317, and two alignment cylinders 318. The multiple alignment blocks 316 correspond one-to-one with the multiple through holes of the corresponding lamination support plate 312, and the alignment blocks 317 cooperate with their corresponding through holes. During lamination, the alignment blocks 317 and their corresponding through holes work together to support the separator, negative electrode, and positive electrode, resulting in good stability. The top of the lamination support plate 314 has multiple clearance grooves 3141 corresponding to the multiple through holes. These clearance grooves 3141 communicate with their respective through holes and prevent the downward movement of the corresponding alignment blocks 317. The aligning mounting plate 317 is located between the two stacked support plates 314 of the corresponding stacked support plate 312 and between the stacked base plate 3313 and the corresponding stacked support plate 312. The bottom ends of the multiple aligning blocks 316 are respectively connected to the top ends of the aligning mounting plate 317. Two aligning cylinders 318 are respectively located at the bottom ends of the stacked base plate 313. The output ends of the aligning cylinders 318 pass through the through holes of the stacked base plate 313 and are connected to the bottom ends of the aligning mounting plate 317. The two aligning cylinders 318 are used to drive the aligning mounting plate 317 to move up and down, thereby driving the multiple aligning blocks 316 to move up and down. By moving the multiple aligning blocks 316 downward, the multiple aligning blocks 316 can be separated from the corresponding through holes. At this time, the multiple lower grippers 982 of the unloading robot 90 can be inserted into the multiple through holes of the two stacked support plates 312 respectively.

[0043] The first pressing mechanism 35 includes a first pressing seat 351 disposed on the top of the stacking mounting plate, a first left-right moving component disposed on the first pressing seat 351, a first pressing base 352 slidably disposed on the top of the first pressing seat 351, and a plurality of first pressing cylinders 353 and a plurality of first pressing blades 358 disposed on the top of the first pressing base 352. In this embodiment, there are four first pressing cylinders 353, and the number of first pressing blades 358 corresponds to the number of first pressing cylinders 353. The first pressing seat 351 is located below the stacking base plate 313, and the stacking base 311 is located between the first pressing seats 351 of the two first pressing mechanisms 35. The plurality of first pressing cylinders 353 are arranged sequentially and spaced apart from front to back on the top of the first pressing base 352, and two stacking support plates 312 are located between the plurality of first pressing cylinders 353 of the two first pressing mechanisms 35. Multiple first pressing blades 358 correspond to multiple first pressing blade cylinders 353 and are respectively disposed on the top of the corresponding first pressing blade cylinders 353. The first pressing blades 358 are located above the stacking table 31. The first left-right moving assembly adopts a structure of motor + lead screw nut + synchronous belt. The first left-right moving assembly is used to drive the first pressing blade base 352, multiple first pressing blade cylinders 353 and multiple first pressing blades 358 to move left and right. The first pressing blade cylinders 353 are used to drive the corresponding first pressing blades 358 to move up and down.

[0044] The second pressing mechanism 36 includes a second pressing seat 361 disposed at the top of the stacking mounting plate, a second left-right moving component disposed on the second pressing seat 361, a second pressing base 362, a plurality of second pressing cylinders 363, and a plurality of second pressing blades 368. The number of second pressing cylinders 363 and second pressing blades 368 corresponds to the number of first pressing cylinders 353, and is also four each. The first pressing seat 351 of the first pressing mechanism 35 is located between the second pressing seat 361 of the corresponding second pressing mechanism 36 and the stacking base 311. The plurality of second pressing cylinders 363 are arranged sequentially and at intervals at the top of the second pressing base 362 from front to back, with each second pressing cylinder 363 located between two adjacent first pressing cylinders 353 of the corresponding first pressing mechanism 35. The plurality of second pressing blades 368 correspond to the plurality of second pressing cylinders 363 and are respectively disposed at the top of the corresponding second pressing cylinders 363, with each second pressing blade 368 located between two adjacent first pressing blades 358. The structure of the second left-right moving component is the same as that of the first left-right moving component. The second left-right moving component is used to drive the second pressing base 362, multiple second pressing cylinders 363, and multiple second pressing blades 368 to move left and right, and the second pressing cylinders 363 are used to drive the corresponding second pressing blades 368 to move up and down.

[0045] Both the front hot-cutting mechanism 38 and the rear hot-cutting mechanism 39 include two hot-cutting bases 38a arranged side-by-side, two hot-cutting mounting plates 381 arranged side-by-side, two hot-cutting support plates 382 arranged side-by-side, two hot-cutting lifting cylinders 383, a diaphragm hot-cutting wire 384, and a hot-cutting tensioning cylinder 387. The two hot-cutting bases 38a are each located at the top of the stacking mounting plates. The two hot-cutting mounting plates 381 are respectively located at the top of the two hot-cutting bases 38a. The two hot-cutting support plates 382 are slidably disposed on the side of the two hot-cutting mounting plates 381 near the stacking table 31, with portions of the two hot-cutting support plates 382 protruding from the end of the two hot-cutting mounting plates 381 near the center of the stacking table 31. Two hot-cutting lifting cylinders 383 are respectively disposed on the side of the two hot-cutting mounting plates 381 near the stacking table 31, and the output ends of the two hot-cutting lifting cylinders 383 are respectively connected to the top ends of the two hot-cutting support plates 382. The two hot-cutting lifting cylinders 383 are used to drive the two hot-cutting support plates 382 to move up and down. The diaphragm hot-cutting wire 384 is located below the top end of the stacking table 31. One end of the diaphragm hot-cutting wire 384 is provided with a first hot-cutting block 385, and the other end of the diaphragm hot-cutting wire 384 is provided with a second hot-cutting block 386. The stacking table 31 is located between the first hot-cutting block 385 and the second hot-cutting block 386. The first hot-cutting block 385 is mounted on one of the hot-cutting support plates 382 near the stacking table 31 via a hot-cutting adapter plate 3821. The second hot-cutting block 386 is connected to the output end of the hot-cutting tension cylinder 387, which is mounted on the other hot-cutting support plate 382 near the stacking table 31. The hot-cutting tension cylinder 387 drives the second hot-cutting block 386 to move left and right. The up-and-down movement of the two hot-cutting support plates 382 can drive the hot-cutting adapter plate 3821, the first hot-cutting block 385, the second hot-cutting block 386, the hot-cutting tension cylinder 387, and the diaphragm hot-cutting wire 384 to move up and down. One end and the other end of the diaphragm hot-cutting wire 384 are electrically connected to the control system, so that the control system can supply power to the diaphragm hot-cutting wire 384. After being energized, the diaphragm hot-cutting wire 384 heats up and is used to cut the diaphragm and to heat the edges of the diaphragm. The left and right movement of the second hot cutting block 386 can drive the other end of the diaphragm hot cutting wire 384 to move left and right, thereby achieving tensioning of the diaphragm hot cutting wire 384. When the diaphragm is cut by the diaphragm hot cutting wire 384, uneven cuts can be avoided, thus improving the overall quality of the battery cell.

[0046] In this embodiment, the first hot-cutting block 385 of the front hot-cutting mechanism 38 is disposed on the side of the left hot-cutting support plate 382 near the stacking table 31 via the hot-cutting adapter plate 3821, and the hot-cutting tensioning cylinder 387 of the front hot-cutting mechanism 38 is disposed on the side of the right hot-cutting support plate 382 near the stacking table 31. The first hot-cutting mounting block 385 of the rear hot-cutting mechanism 39 is disposed on the side of the right hot-cutting support plate 382 near the stacking table 31 via the hot-cutting adapter plate 3821, and the hot-cutting tensioning cylinder 387 of the rear hot-cutting mechanism 39 is disposed on the side of the left hot-cutting support plate 382 near the stacking table 31.

[0047] In practical application, S1, the diaphragm is first unwound by the diaphragm unwinding device 40 and clamped by the diaphragm pulling device 50. Then, the diaphragm pulling device 50 is driven to move backward by two multi-actuator linear motors 72, so that the diaphragm can be moved backward by the diaphragm pulling device 50 and placed on the two stacking trays 312 and multiple filling blocks 316 of the stacking table 31, thereby forming the first layer of the diaphragm of the whole cell. S2, then the second left and right moving components of the two second pressing knife mechanisms 36 respectively drive the corresponding multiple second pressing knives 368 to move towards the stacking table 31 until the second pressing knives 368 of the two second pressing knife mechanisms 36 are respectively above the two sides of the first layer of the diaphragm. Then, the second pressing knife cylinders 363 respectively drive the corresponding second pressing knives 368 to move downward, so that the multiple second pressing knives 368 of the two second pressing knife mechanisms 36 can respectively press the two sides of the first layer of the diaphragm. S3. Then, the two hot-cutting lifting cylinders 383 of the front hot-cutting mechanism 38 drive the diaphragm hot-cutting wire 384 to move upward, so that the first layer of diaphragm can be cut by the diaphragm hot-cutting wire 384. Then, the two hot-cutting lifting cylinders 383 drive the diaphragm hot-cutting wire 384 to move downward to the initial position. Then, the first layer of diaphragm is released by the diaphragm pulling device 50 and the diaphragm pulling device 50 is driven forward to the initial position by the two multi-actuator linear motors 72.

[0048] S4. Then, the multi-electrode transfer device 70 picks up multiple negative electrodes, such as four negative electrodes, from the second multi-electrode correction and positioning device 60a and places them on the first layer of the diaphragm on the stacking stage 31. The multiple negative electrodes are arranged alternately from left to right, with the first and last negative electrodes not covering the two sides of the first layer of the diaphragm. Then, the first left and right moving components of the two first pressing knife mechanisms 35 drive the corresponding multiple first pressing knives 358 to move towards the stacking stage 31 until the multiple first pressing knives 358 of the two first pressing knife mechanisms 35 are respectively located above the end of the first negative electrode that is away from the center of the stacking stage 31 and above the end of the last negative electrode that is away from the center of the stacking stage 31. Then, the first pressing knife cylinder 353 drives the corresponding first pressing knife 358 to move downward, so that the multiple first pressing knives 358 of the two first pressing knife mechanisms 35 can respectively press the end of the first negative electrode that is away from the center of the stacking stage 31 and the end of the last negative electrode that is away from the center of the stacking stage 31. At the same time, the second pressing cylinders 363 of the two second pressing mechanisms 36 drive the corresponding second pressing blades 368 to move upward, so that the multiple second pressing blades 368 of the two second pressing mechanisms 36 separate from both sides of the first diaphragm. Then, the second left and right moving components of the two second pressing mechanisms 36 drive the corresponding multiple second pressing blades 368 to move away from the stacking stage 31 to the initial position, so that the multiple second pressing blades 368 of the two second pressing mechanisms 36 are removed from the first negative electrode and the first diaphragm, and removed from the last negative electrode and the first diaphragm, respectively.

[0049] S5. The unwound separator is clamped by the separator pulling device 50, and then the separator pulling device 50 is driven to move backward by two multi-moving linear motors 72. The separator can be moved backward by the separator pulling device 50 so that it is laid on multiple negative electrode plates on the stacking table 31, thereby forming the second separator of the whole cell. S6. Then, the two second pressing mechanisms 36 press down on both sides of the second diaphragm. This step is the same as step S2. At the same time, the first pressing cylinders 353 of the two first pressing mechanisms 35 drive the corresponding first pressing blades 358 upward, so that the multiple first pressing blades 358 of the two first pressing mechanisms 35 are separated from the end of the first negative electrode sheet away from the center of the stacking table 31 and the end of the last negative electrode sheet away from the center of the stacking table 31, respectively. Then, the first left and right moving components of the two first pressing mechanisms 35 drive the corresponding multiple first pressing blades 358 to move away from the stacking table 31 to the initial position, so that the multiple first pressing blades 358 of the two first pressing mechanisms 35 are removed from the first negative electrode sheet and the second diaphragm, and removed from the last negative electrode sheet and the second diaphragm, respectively. S7. This step is the same as step S3. S8. Then, the multi-electrode transfer device 70 picks up multiple positive electrodes, such as four positive electrodes, from the first multi-electrode correction and positioning device 60b and places them on the second layer of the separator on the stacking stage 31. The multiple positive electrodes are arranged alternately from left to right, with each positive electrode corresponding to a negative electrode, and the positive electrode tab of each positive electrode corresponding to the negative electrode tab of the corresponding negative electrode. Then, the two first pressing mechanisms 35 press the ends of the first positive electrode away from the center of the stacking stage 31 and the last positive electrode away from the center of the stacking stage 31, respectively. This step is the same as the step in S4. S9. The separator is clamped by the separator pulling device 50, and then driven by the two multi-actuator linear motors 72, the separator pulling device 50 moves backward, thereby moving the separator backward so that it is laid on the multiple positive electrodes on the stacking stage 31, thus forming the third layer of the separator of the whole cell.S10. Then, the two second pressing mechanisms 36 press down on both sides of the third separator. This step is the same as step S2. At the same time, the first pressing cylinders 353 of the two first pressing mechanisms 35 drive the corresponding first pressing blades 358 upward, so that the multiple first pressing blades 358 of the two first pressing mechanisms 35 separate from the end of the first positive electrode sheet away from the center of the stacking platform 31 and the end of the last positive electrode sheet away from the center of the stacking platform 31, respectively. Then, the first left and right moving components of the two first pressing mechanisms 35 drive the corresponding multiple first pressing blades 358 to move away from the stacking platform 31 to the initial position, so that the multiple first pressing blades 358 of the two first pressing mechanisms 35 are removed from the first positive electrode sheet and the third separator, and from the last positive electrode sheet and the third separator, respectively. S10. Repeat steps S4-S9 until the last separator is laid on the multiple positive electrodes of the last layer, thus obtaining the complete cell. S11. The two hot-cutting lifting cylinders 383 of the front hot-cutting mechanism 38 and the rear hot-cutting mechanism 39 drive the diaphragm hot-cutting wire 384 to move upward. During the upward movement of the diaphragm hot-cutting wire 384 of the front hot-cutting mechanism 38 and the rear hot-cutting mechanism 39, the diaphragm hot-cutting wire 384 can heat the front and rear edges of all the diaphragms of the entire battery cell, so that the front and rear edges of all the diaphragms are bonded together, thus sealing the front and rear edges of the entire battery cell. Then, the two hot-cutting lifting cylinders 383 of the front hot-cutting mechanism 38 and the rear hot-cutting mechanism 39 drive the diaphragm hot-cutting wire 384 to move downward to the initial position.

[0050] Combination Figure 10 As shown, both the first multi-electrode correction and positioning device 60a and the second multi-electrode correction and positioning device 60b include multiple positioning bases 61, multiple alignment robots 62, and multiple positioning platforms 63. The multiple positioning bases 61 are arranged sequentially from left to right and connected to each other. Each positioning base 61 is slidably mounted on a frame. The multiple alignment robots 62 correspond one-to-one with the multiple positioning bases 61 and are respectively mounted on the top of the corresponding positioning base 61. The multiple positioning platforms 63 correspond one-to-one with the multiple alignment robots 62 and are respectively mounted on the top of the corresponding alignment robots 62. The alignment robots 62 are used to drive the corresponding positioning platforms 63 to rotate. In this embodiment, there are four positioning bases 61, and the number of alignment robots 62 and positioning platforms 63 corresponds to the number of positioning bases 61, which is also four each.

[0051] Combination Figures 11 to 13As shown, the multi-electrode transfer device 70 includes two transfer mounting platforms 71 arranged side-by-side, a first external suction cup robot 73, a first internal suction cup robot 74, a second external suction cup robot 75, and a second internal suction cup robot 76. The transfer mounting platforms 71 are mounted on the frame via transfer bases 711, and the number of transfer bases 711 can be set according to actual needs. Two multi-motion linear motors 72 are respectively provided on one side of the two transfer and installation platforms 71 that are close to each other. The second external suction cup robot 75 and the first external suction cup robot 73 are arranged symmetrically front to back and are located above the second conveyor line 25 and the first conveyor line 15, respectively. The second internal suction cup robot 76 and the first internal suction cup robot 74 are arranged symmetrically front to back and are located between the second external suction cup robot 75 and the first external suction cup robot 73. The two ends of the second external suction cup robot 75, the second internal suction cup robot 76, the first internal suction cup robot 74 and the first external suction cup robot 73 are respectively connected to the two multi-motion linear motors 72. The two multi-motion linear motors 72 are used to drive the second external suction cup robot 75, the second internal suction cup robot 76, the first internal suction cup robot 74 and the first external suction cup robot 73 to move back and forth. The second multi-electrode alignment and positioning device 60b is located below the second outer suction cup robot 75 and the second inner suction cup robot 76. The first multi-electrode alignment and positioning device 60a is located below the first inner suction cup robot 74 and the first outer suction cup robot 73. The stacking device 30 is located below the second inner suction cup robot 76 and the first inner suction cup robot 74. The diaphragm unwinding device 40 is located at the top of the two transfer mounting platforms 71 and above the second outer suction cup robot 75 and the second inner suction cup robot 76. The diaphragm pulling device 50 is located between the second inner suction cup robot 76 and the first inner suction cup robot 74. The two ends of the diaphragm pulling device 50 are respectively connected to two multi-actuator linear motors 72, which are used to drive the diaphragm pulling device 50 to move back and forth.

[0052] Both the second external suction cup robot 75 and the first external suction cup robot 73 include two external suction cup lifting linear modules 731, an external suction cup translation linear module 732, and multiple external suction cup components arranged sequentially from left to right. The two external suction cup lifting linear modules 731 are respectively connected to two multi-motion sub-linear motors 72. The two ends of the external suction cup translation linear module 732 are respectively connected to the two external suction cup lifting linear modules 731. The multiple external suction cup components are all located on the side of the external suction cup translation linear module 732 away from the stacking device 30. The two multi-motion sub-linear motors 72 are used to drive the two external suction cup lifting linear modules 731 to move back and forth, thereby driving the external suction cup translation linear module 732 and the multiple external suction cup components to move back and forth. The two external suction cup lifting linear modules 731 are used to drive the external suction cup translation linear module 732 to move up and down, thereby driving the multiple external suction cup components to move up and down. The external suction cup translation linear module 732 is used to drive the multiple external suction cup components to move left and right. In this embodiment, there are four external suction cup assemblies. Each external suction cup assembly includes an external suction cup base 733, an external suction cup mounting base 734, and multiple external suction cup groups arranged at intervals from front to back. The number of external suction cup groups can be set according to actual conditions. The external suction cup base 733 is located on the side of the external suction cup translation linear module 732 away from the stacking device 30, and the external suction cup mounting base 734 is located at the bottom end of the external suction cup base 733. The external suction cup assembly includes an external suction cup mounting plate 735 and external suction cups 736 spaced apart on the left and right sides, which penetrate the external suction cup mounting plate 735. The external suction cup mounting plate 735 is located at the bottom end of the external suction cup mounting base 734. One end of the external suction cup 736 is located below the external suction cup mounting plate 735, and the other end of the external suction cup 736 is located above the external suction cup mounting plate 735. The other ends of the external suction cups 736 of the multiple external suction cup assemblies of the second external suction cup robot 75 are all used to connect to the first vacuum system. The other ends of the external suction cups 736 of the multiple external suction cup assemblies of the first external suction cup robot 73 are all used to connect to the second vacuum system. The second external suction cup is controlled by the first vacuum system and the second vacuum system. Vacuuming is performed on the outer suction cups 736 of the multiple outer suction cup components of the second outer suction cup robot 75 and the first outer suction cup robot 73, so that the outer suction cups 736 of the multiple outer suction cup components of the second outer suction cup robot 75 and the first outer suction cup robot 73 can respectively pick up multiple, for example, four negative electrode plates and multiple, for example, four positive electrode plates. Vacuuming is stopped by the first vacuuming system and the second vacuuming system, so that the outer suction cups 736 of the multiple outer suction cup components of the second outer suction cup robot 75 and the first outer suction cup robot 73 can respectively release multiple, for example, four negative electrode plates and multiple, for example, four positive electrode plates.

[0053] Both the second inner suction cup robot 74 and the first inner suction cup robot 76 include two inner suction cup lifting linear modules 741, an inner suction cup translation linear module 742, and multiple inner suction cup components arranged at intervals from left to right. The two inner suction cup lifting linear modules 741 are respectively connected to two multi-motion sub-linear motors 72. The two ends of the inner suction cup translation linear module 742 are respectively connected to the two inner suction cup lifting linear modules 741. The multiple inner suction cup components are all located on the side of the inner suction cup translation linear module 742 away from the stacking device 30. The two multi-motion sub-linear motors 72 are used to drive the two inner suction cup lifting linear modules 741 to move back and forth, thereby driving the inner suction cup translation linear module 742 and the multiple inner suction cup components to move back and forth. The two inner suction cup lifting linear modules 741 are used to drive the inner suction cup translation linear module 742 to move up and down, thereby driving the multiple inner suction cup components to move up and down. The inner suction cup translation linear module 742 is used to drive the multiple inner suction cup components to move left and right. In this embodiment, there are four inner suction cup assemblies. Each inner suction cup assembly includes an inner suction cup base 743, an inner suction cup mounting seat 744, two inner suction cup cylinders 745 arranged in a front-to-back configuration, and an inner suction cup plate 746. The inner suction cup base 743 is located on the side of the inner suction cup translation linear module 742 away from the stacking device 30, and the inner suction cup mounting seat 744 is located at the bottom end of the inner suction cup base 743. The two inner suction cup cylinders 745 are respectively located at both ends of the inner suction cup mounting seat 744, and the inner suction cup plate 746 is located below the inner suction cup mounting seat 744. The output ends of the two inner suction cup cylinders 745 are respectively connected to the top end of the inner suction cup plate 746. The two inner suction cup cylinders 745 are used to drive the inner suction cup plate 746 to move up and down. The bottom end of the inner suction cup plate 746 is evenly provided with multiple adsorption holes. The inner suction cup plate 746 has an air channel inside and a connector at the top. The air channel is connected to the multiple adsorption holes and the connector. The connectors of the second inner suction cup robot 76 and the first inner suction cup robot 74 are respectively used to connect to the third vacuum system and the fourth vacuum system. The third vacuum system and the fourth vacuum system respectively evacuate the multiple adsorption holes through the corresponding connectors and air channels. Thus, the inner suction cup plate 746 of the multiple inner suction cup components of the second inner suction cup robot 76 and the first inner suction cup robot 74 can respectively pick up multiple, for example, four negative electrode plates and multiple, for example, four positive electrode plates. The third vacuum system and the fourth vacuum system respectively stop evacuating the multiple adsorption holes through the corresponding connectors and air channels. Thus, the inner suction cup plate of the multiple inner suction cup components of the second inner suction cup robot 76 and the first inner suction cup robot 74 can respectively release multiple, for example, four negative electrode plates and multiple, for example, four positive electrode plates.

[0054] In practical application, the second external suction cup robot arm 75 is first driven forward by two multi-actuator linear motors 72, so that the multiple external suction cup assemblies of the second external suction cup robot arm 75 are positioned above the second conveyor line 25. Then, the external suction cup translation linear module 732 of the second external suction cup robot arm 75 drives the multiple external suction cup assemblies to move left and right, adjusting their left and right positions. Next, the two external suction cup lifting linear modules 731 of the second external suction cup robot arm 75 drive the multiple external suction cup assemblies to move downward, so that the multiple external suction cup groups of the multiple external suction cup assemblies can respectively pick up multiple, for example, four negative electrode plates on the second conveyor line 25. Then, the two external suction cup lifting linear modules 731 of the second external suction cup robot arm 75 drive the multiple external suction cup assemblies to move upward to their initial position. Finally, the two multi-actuator linear motors 72 drive the multiple external suction cup assemblies of the second external suction cup robot arm 75 to move backward, so that the multiple negative electrode plates are respectively positioned above the multiple positioning platforms 63 of the second multi-electrode plate correction and positioning device 60b. Then, the two external suction cup lifting linear modules 731 of the second external suction cup robot 75 drive multiple external suction cup assemblies downward to place multiple negative electrode sheets onto multiple positioning platforms 63 of the second multi-electrode sheet correction and positioning device 60b. Next, the two external suction cup lifting linear modules 731 of the second external suction cup robot 75 drive multiple external suction cup assemblies upward to their initial positions. Then, two multi-actuator linear motors 72 drive the multiple external suction cup assemblies of the second external suction cup robot 72 forward to continue picking up multiple negative electrode sheets on the second conveyor line 25. After the multiple negative electrode sheets are placed onto the multiple positioning platforms 63 of the second multi-electrode sheet correction and positioning device 60b, the multiple alignment robots 62 of the second multi-electrode sheet correction and positioning device 60b drive the corresponding positioning platforms 63 to rotate, thereby achieving correction and positioning of the multiple negative electrode sheets to ensure the accuracy of their positions. Then, two multi-actuator linear motors 72 drive multiple inner suction cup components of the second inner suction cup robot 76 to move forward, so that the multiple inner suction cup components are respectively positioned above multiple negative electrode plates on the second multi-electrode plate correction and positioning device 60b. Then, the inner suction cup translation linear module 742 of the second inner suction cup robot 76 drives the multiple inner suction cup components to move left and right, adjusting their left and right positions. Then, two inner suction cup lifting linear modules 741 of the second inner suction cup robot 76 drive the multiple inner suction cup components downward to a predetermined position. Then, two inner suction cup cylinders 745 drive the corresponding inner suction cup plates 746 downward to pick up the corresponding negative electrode plates through the inner suction cup plates 746 of the multiple inner suction cup components. Then, two inner suction cup cylinders 745 drive the corresponding inner suction cup plates 746 upward to the initial position. Finally, the two inner suction cup lifting linear modules 741 of the second inner suction cup robot 76 drive the multiple inner suction cup components upward to the initial position.Then, two multi-actuator linear motors 72 drive multiple inner suction cup assemblies of the second inner suction cup robot 76 to move backward, positioning them above the stacking stage 31. Next, two inner suction cup lifting linear modules 741 of the second inner suction cup robot 76 drive the multiple inner suction cup assemblies downward to a predetermined position. Then, two inner suction cup cylinders 745 drive the corresponding inner suction cup plates 746 downward, placing multiple negative electrode sheets onto the diaphragm of the stacking stage 31 via the inner suction cup plates 746 of the multiple inner suction cup assemblies. Then, two inner suction cup cylinders 745 drive the corresponding inner suction cup plates 746 upward to the initial position, and then the two inner suction cup lifting linear modules 741 of the second inner suction cup robot 76 drive the multiple inner suction cup assemblies upward to the initial position. Finally, two multi-actuator linear motors 72 drive the multiple inner suction cup assemblies of the second inner suction cup robot 76 forward to the initial position.

[0055] The working principle of the first external suction cup robot 73 is the same as that of the second external suction cup robot 75. The only difference is that the first external suction cup robot 73 is driven to move in the opposite direction to the second external suction cup robot 75 by two multi-actuator linear motors 72. The first external suction cup robot 73 picks up multiple positive electrode sheets from the first conveyor line 15 through multiple external suction cup components and places the multiple positive electrode sheets on multiple positioning platforms 63 of the first multi-electrode sheet correction and positioning device 60a. In this way, the multiple alignment robots 62 of the first multi-electrode sheet correction and positioning device 60a drive the corresponding positioning platforms 63 to rotate, thereby realizing the correction and positioning of multiple positive electrode sheets to ensure the accuracy of the position of multiple positive electrode sheets. The working principle of the first inner suction cup robot 74 is the same as that of the second inner suction cup robot 76. The only difference is that the first inner suction cup robot 74 is driven to move in the opposite direction to the second inner suction cup robot 76 by two multi-actuator linear motors 72. The first inner suction cup robot 74 picks up multiple positive electrode plates from the first multi-electrode plate correction and positioning device 60a through multiple inner suction cup components and places the multiple positive electrode plates on the diaphragm of the stacking stage 31.

[0056] Combination Figures 14 to 17As shown, the battery cell slitting device 80 includes a slitting base 81, a base linear module 82 mounted on a frame, multiple slitting clamps 83, and a slitting mechanism 84. The slitting base 81 is located at the top of the base linear module 82, which drives the slitting base 81 to move left and right. The multiple slitting clamps 83 are arranged alternately from left to right. Both the slitting clamps 83 and the slitting mechanism 84 are located at the top of the slitting base 81, and the left and right movement of the slitting base 81 can drive the multiple slitting clamps 83 and the slitting mechanism 84 to move left and right. To improve the smoothness of the movement of the slitting base 81, the slitting base 81 can be slidably mounted on the frame. The number of slitting clamps 83 corresponds to the number of the outer suction cup assembly and the inner suction cup assembly of the multi-electrode transfer device 70. The accompanying drawings of this embodiment show a battery cell slitting device 80 with three slitting clamps 83.

[0057] The slitting fixture 83 includes a fixture mounting plate 831, a lower clamping mounting seat 832, an upper clamping mounting seat 833, and two slitting lifting cylinders 834, all mounted on the top of the slitting base 81. The lower clamping mounting seat 832 is located on the top of the fixture mounting plate 831 and has multiple first clearance slots 8321 at its top, spaced apart from front to back. The upper clamping mounting seat 833 is located above and opposite the lower clamping mounting seat 832, and has multiple second clearance slots 8331 at its bottom, each corresponding to one of the first clearance slots 8321. Two slitting and lifting cylinders 834 are respectively set at the top of the clamping mounting plate 831, and the lower pressing mounting seat 832 is located between the two slitting and lifting cylinders 834. The output ends of the two slitting and lifting cylinders 834 are respectively connected to the two ends of the upper pressing mounting seat 833.

[0058] The slitting mechanism 84 includes two slitting translation linear modules 841 arranged opposite each other, two slitting lifting linear modules 842, a slitting mounting plate 843, and multiple slitting hot cutting wires 844. The two slitting translation linear modules 841 are respectively located at the top of the slitting base 81, and multiple slitting clamps 83 are located between the two slitting translation linear modules 841. The two slitting lifting linear modules 842 are respectively located at the top of the two slitting translation linear modules 842. The slitting mounting plate 843 is located above the multiple slitting clamps 83. Both ends of the slitting mounting plate 843 are connected to the two slitting lifting linear modules 842. The multiple slitting hot cutting wires 844 are located below the slitting mounting plate 843 and are arranged alternately from left to right. The number of slitting hot cutting wires 844 is one less than the number of slitting clamps 83, and each slitting hot cutting wire 844 is located between two adjacent slitting clamps 83. One end of the slitting hot cutting wire 844 is provided with a first slitting block 8441 and a second slitting block 8442, respectively. One end of the slitting hot cutting wire 844 is used to electrically connect to the control system, so that the control system can supply power to the slitting hot cutting wire 844, and the slitting hot cutting wire 844 heats up after being energized. In this embodiment, there are four negative electrode plates and four positive electrode plates on the stacking stage 31, so there are three gaps between the electrode plates of the whole cell. In actual application, each slitting hot cutting wire 844 corresponds to one gap. The slitting hot cutting wire 844 is used to cut the diaphragm from the corresponding gap, thereby realizing the cutting of the whole cell into multiple individual cells. The first slitting block 8441 is disposed on one side of the first slitting support column 845 and near the bottom end of the first slitting support column 845. The top end of the first slitting support column 845 is provided with a first mounting block 8451. A second mounting block 8452 is disposed on one side of the first mounting block 8451. The second mounting block 8452 is disposed at the bottom end of the slitting mounting plate 843. The second slitting block 8442 is disposed on one side of the second slitting support column 846 and near the bottom end of the second slitting support column 846. A slitting sliding block 847 is disposed on one side of the second slitting support column 846 near the top end of the second slitting support column 846. The slitting sliding block 847 is slidably disposed on one side of the slitting support plate 848. The top end of the slitting support plate 848 is provided with a third mounting block 8481. A fourth mounting block 8482 is disposed on one side of the third mounting block 8481. The fourth mounting block 8482 is disposed at the bottom end of the slitting mounting plate 843.A slitting tension cylinder 849 is provided on one side of the slitting support plate 848. The output end of the slitting tension cylinder 849 is connected to the slitting sliding block 847. The slitting tension cylinder 849 is located between the second slitting support column 846 and multiple slitting clamps 83. The slitting tension cylinder 849 is used to drive the slitting sliding block 847 to move towards or away from the center of the slitting hot cutting wire 844, that is, to move back and forth. Thus, through the second slitting support column 846 and the second slitting block 8442, the other end of the slitting hot cutting wire 844 can be driven to move towards or away from the center of the slitting hot cutting wire 844. By driving the other end of the slitting hot cutting wire 844 to move away from the center of the slitting hot cutting wire 844, the slitting hot cutting wire 844 can be tensioned. In this way, when the separator of the whole cell is cut by the slitting hot cutting wire 844, the flatness of the separator cut can be ensured, thus ensuring the quality of the individual cell. Multiple slitting fixtures 83 are located between the first slitting support column 845 and the second slitting support column 846. Two slitting translation linear modules 841 are used to drive two slitting lifting linear modules 842 to move left and right, thereby driving the slitting mounting plate 843 and multiple slitting hot cutting wires 844 to move left and right, thus enabling adjustment of the left and right positions of the multiple slitting hot cutting wires 844, thereby ensuring that the width of the multiple individual battery cells after slitting is consistent. The two slitting lifting linear modules 842 are used to drive the slitting mounting plate 843 to move up and down, thereby driving the multiple slitting hot cutting wires 844 to move up and down. In this embodiment, the first slitting block 8441 includes a first connecting block 84412 and a second connecting block 84411. A first mounting groove is provided on one side of the first slitting support column 845. The first connecting block 84412 is disposed in the first mounting groove. The second connecting block 84411 is disposed on one side of the first slitting support column 845, on the side of the first connecting block 84412 away from the bottom of the first mounting groove. The second cutting block 8442 includes a third connecting block 84422 and a fourth connecting block 84421. A second mounting groove is provided on one side of the second cutting support column 846. The third connecting block 84422 is disposed in the second mounting groove. The fourth connecting block 84421 is disposed on one side of the second cutting support column 846 and on the side of the third connecting block 84422 away from the bottom of the second mounting groove.

[0059] Combination Figure 18 and Figure 19As shown, the unloading robot 90 includes an unloading base 91 mounted on a frame, an unloading translation linear module 92, an unloading lifting linear module 93, an unloading motor 94, an unloading rotating shaft 95, a gripper cylinder 96, an upper gripper assembly, and a lower gripper assembly. The unloading translation linear module 92 is located on the side of the unloading base 91 closest to the cell slitting device 80. The unloading lifting linear module 93 is located on the side of the unloading translation linear module 92 closest to the cell slitting device 80. An unloading mounting seat 921 is provided on one side of the unloading lifting linear module 93, and an unloading mounting plate 922 is provided on the side of the unloading mounting seat 921 away from the unloading lifting linear module 93. The unloading motor 94 is mounted on the top of the unloading mounting plate 922 via a motor mount 941. A feeding shaft 95 passes through a through hole in the feeding mounting plate 922. One end of the feeding shaft 95 is connected to the output end of the feeding motor 94, and the other end is connected to the top end of the feeding top plate 951. A feeding bearing is installed inside the through hole of the feeding mounting plate 922, and the feeding bearing is sleeved on the outer circumference of the feeding shaft 95 to provide rotational support for the feeding shaft 95. A feeding side plate 952 is provided at the bottom end of the feeding top plate 951, and a gripper cylinder 96 is located on the side of the feeding side plate 952 away from the cell slitting device 80. The upper gripper assembly and the lower gripper assembly are arranged vertically opposite each other. The upper gripper assembly and the lower gripper assembly are located between the feeding side plate 952 and the cell slitting device 80 and below the feeding translation linear module 92. The upper gripper assembly includes an upper gripper mounting base 971 and multiple upper grippers 972. The upper gripper mounting base 971 is connected to the output end of the gripper cylinder 96. Specifically, an upper gripper connecting block 9711 is provided on the side of the upper gripper mounting base 971 near the unloading side plate 952. The end of the upper gripper connecting block 9711 away from the upper gripper mounting base 971 passes through the through hole 9521 of the loading side plate 952 and is connected to the output end of the gripper cylinder 96. Multiple upper grippers 972 are arranged sequentially from front to back on the side of the upper gripper mounting base 971 near the cell slitting device 80. The lower gripper assembly includes a lower gripper mounting base 981 and multiple lower grippers 982. The lower gripper mounting base 981 is located on the side of the unloading side plate 952 near the cell slitting device 80. The multiple lower grippers 982 are arranged sequentially from front to back on the side of the lower gripper mounting base 981 near the cell slitting device 80 and correspond one-to-one with the multiple upper grippers 972. The second clearance grooves 8331 of the multiple slitting fixtures 83 form a second clearance channel, and the first clearance grooves 8321 of the multiple slitting fixtures 83 form a first clearance through hole. Each upper gripper 972 corresponds to one of the second clearance channels, which are used to avoid the corresponding upper gripper 972. Each lower gripper 982 corresponds to one of the first clearance channels, which are used to avoid the corresponding lower gripper 982. The unloading translation linear module 92 is used to drive the unloading lifting linear module 93 to move back and forth, thereby driving the unloading motor 94, unloading rotating shaft 95, gripper cylinder 96, upper gripper group and lower gripper group to move back and forth.The unloading lifting linear module 93 is used to drive the unloading motor 94, the unloading rotating shaft 95, the gripper cylinder 96, the upper gripper assembly, and the lower gripper assembly to move up and down. The unloading motor 94 drives the unloading rotating shaft 95 to rotate, which in turn drives the gripper cylinder 96, the upper gripper assembly, and the lower gripper assembly to rotate.

[0060] In practical applications, after the front and rear sides of the overall battery cell are sealed by the front hot-cutting mechanism 38 and the rear hot-cutting mechanism 39 respectively, the corresponding multiple filling blocks 316 are driven to move downward by the filling cylinders 38 of the two filling components until the filling blocks 316 contact the bottom of the corresponding clearance grooves 3141. At this time, the filling blocks 316 separate from the corresponding through holes. Then, the multiple upper jaws 972 and multiple lower jaws 982 are driven to move forward to the position corresponding to the stacking table 31 by the unloading translation linear module 92. Then, the multiple upper jaws 972 and multiple lower jaws 982 are driven to rotate 180 degrees by the unloading motor 94 so that the multiple upper jaws 972 and multiple lower jaws 982 face the stacking table 31. Then, the multiple upper jaws 972 and multiple lower jaws 982 are driven to move up and down by the unloading lifting linear module 93 so that the multiple lower jaws 982 correspond to the multiple through holes of the two stacking trays 312 respectively. Then, the stacking stage 31 is driven to move to the right by the stacking translation linear module, so that multiple lower grippers 982 are inserted into multiple through holes of the stacking stage 31 respectively. At this time, multiple upper grippers 972 are located above the integral battery cell on the stacking stage 31. Then, the gripper cylinder 96 drives the multiple upper grippers 972 to move downward, so that the integral battery cell on the stacking stage 31 can be clamped by the multiple upper grippers 972 and multiple lower grippers 982. Then, the stacking stage 31 is driven to move to the left to the initial position by the stacking translation linear module, so that the multiple lower grippers 982 are separated from the multiple through holes of the stacking stage 31. Then, the feeding motor 94 drives the multiple upper grippers 972 and multiple lower grippers 982 to rotate 180 degrees to return to the initial position. Then, the feeding translation linear module 92 drives the multiple upper grippers 972 and multiple lower grippers 982 to move backward to the position corresponding to the battery cell cutting device 80. Then, two slitting lifting linear modules 842 drive multiple slitting hot-cutting wires 844 upwards, positioning them above multiple slitting clamps 83. Next, the base linear module 82 drives the slitting base 81, multiple slitting clamps 83, and slitting mechanism 84 to move to the left, positioning the entire battery cell at the top of the lower clamping mounting base 832, with multiple upper clamps 972 inserted into their respective second clearance channels and multiple lower clamps 982 inserted into their respective first clearance channels. Then, two slitting lifting cylinders 834 drive the upper clamping mounting base 833 downwards, pressing the entire battery cell against the top of the lower clamping mounting base 832. At this point, each slitting hot-cutting wire 844 corresponds to a gap between the electrode and the electrode of the entire battery cell. Finally, clamp cylinders 96 drive the multiple upper clamps 972 upwards to release the entire battery cell. Then, the base linear module 82 drives the slitting base 81, multiple slitting fixtures 83 and slitting mechanism 84 to move to the right to the initial position.Then, the two cutting and lifting linear modules 842 drive multiple cutting hot wires 844 to move downward to the initial position. During the downward movement of the cutting hot wires 844, the separator can be cut from the corresponding gap of the whole cell, thereby cutting the whole cell into multiple, for example, four individual cells, thus obtaining multiple individual cells.

[0061] This invention, through the establishment of a first laser die-cutting mechanism 12 and a second laser die-cutting mechanism 22, can laser-cut one side of the positive electrode strip and one side of the negative electrode strip respectively, so that multiple positive electrode tabs are formed on one side of the positive electrode strip and multiple negative electrode tabs are formed on one side of the negative electrode strip. This eliminates the need for separate laser cutting of electrode tabs on one side of the positive electrode strip and one side of the negative electrode strip using other equipment such as a laser tab forming machine before cell production, reducing production time, improving production efficiency, and lowering production costs. Furthermore, through the establishment of a first multi-electrode alignment and positioning device 60a, a second multi-electrode alignment and positioning device 60b, a multi-electrode transfer device 70, a cell slitting device 80, and a material unloading robot 90, multiple electrode sheets can be stacked at once, thereby producing multiple individual cells at once, further reducing production time, improving production efficiency, and lowering production costs. Simultaneously, the method of unloading the entire cell before slitting reduces the unloading time of the cells on the stacking table 31. In addition, the front hot-cutting mechanism 38 and the rear hot-cutting mechanism 39 are provided. The front hot-cutting mechanism 38 can cut the separator and seal the front edge of the whole cell, while the rear hot-cutting mechanism can seal the rear edge of the whole cell. By adopting the method of sealing the edge first and then cutting, the two sides of the separator of the whole cell will not be folded during the process of the unloading robot 90 transporting the whole cell to the cell cutting device 80, thus improving the quality of the whole cell.

[0062] This utility model also includes an adhesive-applying robot 100, an adhesive-applying device 110, a hot-press feeding robot 120, a hot-press unloading robot 140, a hot-pressing device 130, a QR code adhesive-applying device 150, a transfer robot 160, a testing device 170, and an unloading conveyor line 180, all mounted on a frame. The adhesive-applying robot 100 is located to the right of the unloading robot 90, and the adhesive-applying device 110 is located in front of both the unloading robot 90 and the adhesive-applying robot 100. The adhesive-applying device 110 is used to apply adhesive to the front, rear, left, and right sides of individual battery cells. The unloading robot 90 is also used to transport multiple individual battery cells from the battery cell cutting device 80 to the adhesive-applying robot 100, and the adhesive-applying robot 100 is used to sequentially transport multiple individual battery cells from the unloading robot 90 to the adhesive-applying device 110. The hot pressing device 130 is located in front of the adhesive application device 110, and the hot pressing loading robot 120 is located between the adhesive application device 110 and the hot pressing device 130. The QR code adhesive application device 150, the testing device 160, and the unloading conveyor line 170 are arranged sequentially from left to right in front of the hot pressing device 130, and the hot pressing unloading robot 140 is located to the left of the hot pressing device 130 and the QR code adhesive application device 150. The transfer robot 160 is located between the QR code adhesive application device 150 and the testing device 170. The hot pressing device 130 is used to hot press individual battery cells, and the hot pressing loading robot 120 is used to transfer individual battery cells from the adhesive application device 110 to the hot pressing device 130. The QR code adhesive application device 150 is used to apply QR code adhesive to individual battery cells. The testing device 160 is used to perform Hi-pot testing and thickness testing on individual battery cells. The unloading conveyor line 180 is used to transport individual battery cells to the unloading station for unloading. The hot-press unloading robot 140 is used to transfer the individual battery cells on the hot-press device 130 to the QR code adhesive applicator 150. The transfer robot 160 is used to transfer the individual battery cells on the QR code adhesive applicator 150 to the testing device 170 and to transfer the individual battery cells on the testing device 170 to the unloading conveyor line 180.

[0063] This invention does not alter the structure of the adhesive applicator 100, adhesive applicator 110, hot press loading robot 120, hot press unloading robot 140, hot press device 130, QR code adhesive applicator 150, transfer robot 160, testing device 170, and unloading conveyor line 180; conventional structures are sufficient. The number of hot press devices 130 can be adjusted according to actual needs.

[0064] In practical applications, after the entire battery cell is cut into multiple individual battery cells, such as four individual cells, by the multiple cutting hot wires 844 of the battery cell cutting device 80, the multiple cutting hot wires 844 are driven upward by two cutting lifting linear modules 842 so that the multiple cutting hot wires 844 are positioned above the multiple cutting fixtures 83. Then, the cutting base 81, the multiple cutting fixtures 83, and the cutting mechanism 84 are driven to move to the left by the base linear module 82, so that the multiple upper grippers 972 of the unloading robot 90 are inserted into the corresponding second clearance channels, and the multiple lower grippers 982 are inserted into the corresponding first clearance channels, with the multiple upper grippers 972 and the multiple lower grippers 982 positioned above and below the multiple individual battery cells, respectively. Then, the multiple upper grippers 972 are driven downward by the gripper cylinder 96 to clamp the multiple individual battery cells. Then, the upper clamping mounting base 833 is driven upward to the initial position by two slitting and lifting cylinders 834 to release multiple individual battery cells. Then, the slitting base 81, multiple slitting clamps 83, and slitting mechanism 84 are driven to the right to the initial position by the base linear module 82. Then, multiple slitting hot-cut wires 844 are driven downward to the initial position by two slitting and lifting linear modules 842. Then, multiple upper grippers 972, multiple lower grippers 982, and multiple individual battery cells are driven forward to the adhesive-applying robot arm 110 by the unloading translation linear module 92. Then, the adhesive-applying robot 110 sequentially transports multiple individual battery cells from the unloading robot 90 to the adhesive-applying device 110. The adhesive-applying device 110 then sequentially applies adhesive to the front, rear, left, and right sides of each individual battery cell. After adhesive application to each individual battery cell by the adhesive-applying device 110, the hot-press loading robot 120 transports the individual battery cell from the adhesive-applying device 110 to the hot-pressing device 130, where it is pressed firmly. Then, the hot-press unloading robot 140 transports the individual battery cell from the hot-pressing device 130 to the QR code adhesive-applying device 150, where QR code adhesive is applied to the individual battery cell. Finally, the transfer robot 160 transports the individual battery cell from the QR code adhesive-applying device 150 to the testing device 170, where it performs Hi-pot and thickness tests on the individual battery cell. Then, the transfer robot 160 transports the individual battery cells on the testing device 170 to the unloading conveyor line 180, so that the individual battery cells can be transported to the unloading station for unloading.

[0065] This utility model, through the inclusion of a glue-applying robot 100, a glue-applying device 110, a hot-pressing loading robot 120, a hot-pressing unloading robot 140, a hot-pressing device 130, a QR code glue-applying device 150, a transfer robot 160, a testing device 170, and a material unloading conveyor line 180, enables the side glue application, hot pressing, QR code glue application, Hi-pot testing, and thickness testing of the slit individual battery cells to be performed on the same equipment, eliminating the need for separate equipment. This further reduces production time, improves production efficiency, and lowers production costs.

[0066] The above is a detailed description of the preferred embodiments of the present utility model. However, the present utility model is not limited to the described embodiments. Those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of the present utility model. All such equivalent modifications or substitutions are included within the scope defined by the claims of this application.

Claims

1. A laser die-cutting and stacking integrated machine, comprising a frame, a first supply device, a second supply device symmetrically arranged front and rear to the first supply device, a stacking device, a diaphragm unwinding device, and a diaphragm stretching device, wherein the first supply device includes a first unwinding mechanism, a first cutting mechanism, a first detection mechanism, and a first conveyor line arranged sequentially from left to right on the frame, and the second supply device includes a second unwinding mechanism, a second cutting mechanism, a second detection mechanism, and a second conveyor line arranged sequentially from left to right on the frame, wherein the diaphragm unwinding device and the diaphragm stretching device are both located in front of and above the stacking device; characterized in that, It also includes a first multi-electrode alignment and positioning device, a second multi-electrode alignment and positioning device, a multi-electrode transfer device, a cell slitting device, and a unloading robot. The first multi-electrode alignment and positioning device, the second multi-electrode alignment and positioning device, the multi-electrode transfer device, the cell slitting device, and the unloading robot are all mounted on the frame. The multi-electrode transfer device is located between the first conveyor line and the second conveyor line. The stacking device, the first multi-electrode alignment and positioning device, and the second multi-electrode alignment and positioning device are all located inside the multi-electrode transfer device. The cell slitting device is located to the right of the stacking device and the first multi-electrode alignment and positioning device. The unloading robot is located between the stacking device and the cell slitting device. The first supply device further includes a first laser die-cutting mechanism disposed on the frame, the first laser die-cutting mechanism being located between the first unwinding mechanism and the first cutting mechanism; the second supply device further includes a second laser die-cutting mechanism disposed on the frame, the second laser die-cutting mechanism being located between the second unwinding mechanism and the second cutting mechanism. The stacking device includes a stacking translation linear module mounted on the frame, a stacking mounting plate mounted on the top of the stacking translation linear module, a stacking stage mounted on the top of the stacking mounting plate, and a front hot-cutting mechanism mounted on the top of the stacking mounting plate, wherein the front hot-cutting mechanism is located in front of the stacking stage.

2. The laser die-cutting and stacking integrated machine according to claim 1, characterized in that, Both the first laser die-cutting mechanism and the second laser die-cutting mechanism include a die-cutting machine table, a cutting roller structure, and a laser cutting structure mounted on the frame; The cutting roller structure includes two roller mounting plates arranged in a front-to-back configuration, a first roller, a second roller, a third roller, and a stop roller assembly. The two roller mounting plates are respectively located at the top of the die-cutting machine platform. The first roller, the second roller, and the third roller are rotatably mounted between the two roller mounting plates. The first roller and the second roller are spaced apart from each other to the left. The third roller is located above the first roller. The side of the third roller away from the second roller is flush with the side of the first roller away from the second roller. The top of the two roller mounting plates is provided with a roller top plate. The stop roller assembly is inclined to the upper left and is located at the top of the roller top plate. The laser cutting structure includes a cutting base plate, a cutting translation linear module, an adjustment component, a cutting mounting plate, a laser, and a cutting cylinder. The cutting translation linear module is located at the top of the die-cutting machine and to the left of the cutting roller structure. One end of the cutting base plate is located at the top of the cutting translation linear module, and the other end of the cutting base plate extends between the two roller mounting plates and is slidably located at the top of the die-cutting machine. The adjustment component is located at the top of the cutting base plate and to the left of the cutting roller structure. The cutting mounting plate is located at the top of the adjustment component. The cutting cylinder is located at the top of the cutting mounting plate. The laser is located above the cutting cylinder and connected to the output end of the cutting cylinder. The laser's output port corresponds to the space between the first and third rollers.

3. The laser die-cutting and stacking integrated machine according to claim 2, characterized in that, Both the first laser die-cutting mechanism and the second laser die-cutting mechanism include a waste collection structure and a dust removal structure; The waste collection structure includes a first collection mounting plate, a second collection mounting plate, a vacuum belt with negative pressure vents, a collection motor, a collection synchronous belt assembly, a first belt roller, two second belt rollers spaced apart, and a waste discharge pipe. The first collection mounting plate is located at the top of the cutting base plate. The second collection mounting plate and the first collection mounting plate are opposite each other and connected by a collection connecting rod. In the second laser die-cutting mechanism, the second collection mounting plate is located behind the first collection mounting plate. In the first laser die-cutting mechanism, the second collection mounting plate is located in front of the first collection mounting plate. The first and second collection mounting plates are located between the first roller and the laser. The collection motor is located near the first collection mounting plate. Near the second collecting mounting plate, two second belt rollers are located above the first belt roller. The first belt roller and the two second belt rollers are rotatably disposed between the first collecting mounting plate and the second collecting mounting plate. One end of the first belt roller is connected to the output end of the collecting motor through the collecting synchronous belt assembly. The vacuum belt is located between the first collecting mounting plate and the second collecting mounting plate and is sleeved on the outer periphery of the first belt roller and the two second belt rollers. The collecting connecting rod is located inside the vacuum belt. The waste discharge pipe passes through the first through hole at the top of the die-cutting machine table and is fixed at the top of the die-cutting machine table. One end of the waste discharge pipe is located below the vacuum belt, and the other end of the waste discharge pipe is located inside the die-cutting machine table. The dust removal structure includes a dust removal pipe, a dust removal seat above the vacuum belt, the laser's output port corresponding to the space between the vacuum belt and the dust removal seat, the dust removal seat being connected to the first collection mounting plate, the dust removal pipe passing through the second through hole at the top of the die-cutting machine and fixed to the top of the die-cutting machine, one end of the dust removal pipe being located at the top of the dust removal seat, and the other end of the dust removal pipe being located inside the die-cutting machine, the dust removal seat having a dust removal hole penetrating its top and bottom, the dust removal hole corresponding to and communicating with the dust removal pipe.

4. The laser die-cutting and stacking integrated machine according to claim 1, characterized in that, The stacking device further includes a rear hot-cutting mechanism, which is located at the top of the stacking mounting plate and behind the stacking table. The front and rear hot-cutting mechanisms are arranged opposite each other. Each of the front and rear hot-cutting mechanisms includes two hot-cutting bases arranged left and right opposite each other, two hot-cutting mounting plates, two hot-cutting support plates, two hot-cutting lifting cylinders, a diaphragm hot-cutting wire, and a hot-cutting tensioning cylinder. The two hot-cutting bases are both located at the top of the stacking mounting plate, and the two hot-cutting mounting plates are respectively located at the top of the two hot-cutting bases. The two hot-cutting support plates are respectively slidably mounted on the two hot-cutting mounting plates. On the side of the plate near the stacking table, two hot-cutting lifting cylinders are respectively set on the side of the two hot-cutting mounting plates near the stacking table. The output ends of the two hot-cutting lifting cylinders are respectively connected to the top of the two hot-cutting support plates. One end of the diaphragm hot-cutting wire is provided with a first hot-cutting block and a second hot-cutting block. The first hot-cutting block is set on the side of one of the hot-cutting support plates near the stacking table. The second hot-cutting block is connected to the output end of the hot-cutting tensioning cylinder. The hot-cutting tensioning cylinder is set on the side of the other hot-cutting support plate near the stacking table. The diaphragm hot-cutting wire is located below the top of the stacking table.

5. The laser die-cutting and stacking integrated machine according to claim 1, characterized in that, Both the first and second multi-electrode correction and positioning devices include multiple positioning bases, multiple alignment robots, and multiple positioning platforms. The multiple positioning bases are arranged sequentially from left to right and connected to each other. The multiple positioning bases are all mounted on the frame. The multiple alignment robots correspond one-to-one with the multiple positioning bases and are respectively mounted on the top of the corresponding positioning bases. The multiple positioning platforms correspond one-to-one with the multiple alignment robots and are respectively mounted on the top of the corresponding alignment robots. The alignment robots are used to drive the corresponding positioning platforms to rotate.

6. The laser die-cutting and stacking integrated machine according to claim 1, characterized in that, The multi-pole transfer device includes two transfer mounting platforms arranged opposite each other, a first outer suction cup robot, a first inner suction cup robot, a second outer suction cup robot, and a second inner suction cup robot. The transfer mounting platforms are mounted on the frame via transfer bases. Two multi-actuator linear motors are respectively installed on the side of the two transfer mounting platforms that are close to each other. The second and first outer suction cup robots are symmetrically arranged front-to-back and located above the second and first conveyor lines, respectively. The second and first inner suction cup robots are symmetrically arranged front-to-back and located between the second and first outer suction cup robots. The second outer suction cup robot, the second inner suction cup robot, and the first inner suction cup robot... The first external suction cup robot arm has two ends connected to two multi-actuator linear motors respectively. The second multi-pole plate correction and positioning device is located below the second external suction cup robot arm and the second internal suction cup robot arm. The first multi-pole plate correction and positioning device is located below the first internal suction cup robot arm and the first external suction cup robot arm. The stacking device is located below the second internal suction cup robot arm and the first internal suction cup robot arm. The diaphragm unwinding device is located at the top of the two transfer mounting platforms and above the second external suction cup robot arm and the second internal suction cup robot arm. The diaphragm pulling device is located between the second internal suction cup robot arm and the first internal suction cup robot arm. The two ends of the diaphragm pulling device are connected to two multi-actuator linear motors respectively.

7. The laser die-cutting and stacking integrated machine according to claim 1, characterized in that, The cell slitting device includes a slitting base, a base linear module mounted on the frame, multiple slitting fixtures and a slitting mechanism. The slitting base is located at the top of the base linear module, and the multiple slitting fixtures are arranged at intervals from left to right. The slitting mechanism includes two slitting translation linear modules arranged opposite each other, two slitting lifting linear modules, a slitting mounting plate, and multiple slitting hot-cutting wires. The two slitting translation linear modules are respectively located at the top of the slitting base. Multiple slitting clamps are located between the two slitting translation linear modules. The two slitting lifting linear modules are respectively located at the top of the two slitting translation linear modules. The slitting mounting plate is located above the multiple slitting clamps, and its two ends are respectively connected to the two slitting lifting linear modules. Multiple slitting hot-cutting wires are located below the slitting mounting plate and are arranged alternately from left to right. The number of slitting hot-cutting wires is one less than the number of slitting clamps. Each slitting hot-cutting wire is located between two adjacent slitting clamps. A first slitting block and a second slitting block are respectively provided at one end and the other end. The first slitting block is located on one side of the first slitting support column and near the bottom end of the first slitting support column. The top end of the first slitting support column is located at the bottom end of the slitting mounting plate. The second slitting block is located on one side of the second slitting support column and near the bottom end of the second slitting support column. A slitting sliding block is provided on one side of the second slitting support column near the top end of the second slitting support column. The slitting sliding block is slidably disposed on one side of the slitting support plate. The top end of the slitting support plate is located at the bottom end of the slitting mounting plate. A slitting tension cylinder is provided on one side of the slitting support plate. The output end of the slitting tension cylinder is connected to the slitting sliding block. Multiple slitting clamps are located between the first slitting support column and the second slitting support column.

8. The laser die-cutting and stacking integrated machine according to claim 7, characterized in that, The slitting fixture includes a fixture mounting plate, a lower clamping mounting seat, an upper clamping mounting seat, and two slitting lifting cylinders, all mounted on the top of the slitting base. The lower clamping mounting seat is located on the top of the fixture mounting plate and has multiple first clearance slots at its top, spaced apart from front to back. The upper clamping mounting seat is located above and opposite the lower clamping mounting seat. The bottom of the upper clamping mounting seat has multiple second clearance slots, each corresponding to one of the first clearance slots. The two slitting lifting cylinders are respectively mounted on the top of the fixture mounting plate, with the lower clamping mounting seat located between them. The output ends of the two slitting lifting cylinders are connected to both ends of the upper clamping mounting seat.

9. The laser die-cutting and stacking integrated machine according to claim 8, characterized in that, The unloading robot includes an unloading base mounted on the frame, an unloading translation linear module, an unloading lifting linear module, an unloading motor, an unloading rotating shaft, a gripper cylinder, an upper gripper assembly, and a lower gripper assembly. The unloading translation linear module is located on the side of the unloading base near the cell cutting device. The unloading lifting linear module is located on the side of the unloading translation linear module near the cell cutting device. An unloading mounting seat is provided on one side of the unloading lifting linear module, and an unloading mounting plate is provided on the side of the unloading mounting seat away from the unloading lifting linear module. The unloading motor is located at the top of the unloading mounting plate. The unloading rotating shaft passes through a through hole in the unloading mounting plate, with one end connected to the output end of the unloading motor and the other end connected to the top of the unloading top plate. An unloading side plate is provided at the bottom of the unloading top plate. The gripper cylinder is located on the side of the unloading side plate away from the cell cutting device. The upper gripper assembly... The upper and lower gripper groups are arranged vertically opposite each other. The upper gripper group and the lower gripper group are located between the unloading side plate and the cell slitting device and below the unloading translation linear module. The upper gripper group includes an upper gripper mounting base and multiple upper grippers. The upper gripper mounting base is connected to the output end of the gripper cylinder. The multiple upper grippers are arranged sequentially from front to back on the side of the upper gripper mounting base near the cell slitting device. The lower gripper group includes a lower gripper mounting base and multiple lower grippers. The lower gripper mounting base is located on the side of the unloading side plate near the cell slitting device. The multiple lower grippers are arranged sequentially from front to back on the side of the lower gripper mounting base near the cell slitting device and correspond one-to-one with the multiple upper grippers. The first clearance grooves of the multiple slitting fixtures form a first clearance channel, and each lower gripper corresponds to one of the first clearance channels. The second clearance grooves of the multiple slitting fixtures form a second clearance channel, and each upper gripper corresponds to one of the second clearance channels.

10. The laser die-cutting and stacking integrated machine according to claim 1, characterized in that, The laser die-cutting and stacking integrated machine also includes an adhesive applicator, an adhesive applicator robot, a hot-press feeding robot, a hot-press unloading robot, a hot-pressing device, a QR code adhesive applicator, a transfer robot, a testing device, and a feeding conveyor line, all mounted on the frame. The adhesive applicator robot is located to the right of the unloading robot, the adhesive applicator robot is located in front of both the unloading robot and the adhesive applicator robot, the hot-pressing device is located in front of the adhesive applicator robot, the hot-press feeding robot is located between the adhesive applicator robot and the hot-pressing device, the QR code adhesive applicator, the testing device, and the feeding conveyor line are arranged sequentially from left to right and are located in front of the hot-pressing device, the hot-press unloading robot is located to the left of the hot-pressing device and the QR code adhesive applicator robot, and the transfer robot is located between the QR code adhesive applicator robot and the testing device.

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