A lamination device that stacks multiple plates at once.

Abstract

We provide lamination equipment that can stack multiple sheets of material at once. [Solution] The equipment comprises a frame, a positive electrode plate die-cutting device, a negative electrode plate die-cutting device installed facing the positive electrode plate die-cutting device in the front and rear, a stacking device, a separator unwinding device, and a separator withdrawal device. The positive electrode plate die-cutting device comprises a positive electrode plate unwinding mechanism installed from left to right at the upper end of the frame, a positive electrode plate V-angle punching mechanism, a positive electrode plate cutting mechanism, a positive electrode plate inspection mechanism, and a positive electrode plate transport line. The negative electrode plate die-cutting device comprises a negative electrode plate unwinding mechanism installed from left to right at the upper end of the frame, a negative electrode plate V-angle punching mechanism, a negative electrode plate cutting mechanism, a negative electrode plate inspection mechanism, and a negative electrode plate transport line. The equipment further comprises a positive electrode plate pre-positioning device, a negative electrode plate pre-positioning device, a transport device, a cell slitting device, and a blanking manipulator. The present invention improves manufacturing efficiency and reduces manufacturing costs.

Description

Technical Field

[0004]

[0001] The present invention relates to the field of battery manufacturing technology, and specifically, to a stacking facility for stacking a plurality of plates at one time.

Background Art

[0002] In the process of manufacturing lithium battery cells using conventional stacking facilities, generally, S1: placing the separator unwound by the separator unwinding device of the stacking facility on the stacking table by the separator drawing device of the stacking facility; S2: cutting the separator by the separator cutting device of the stacking facility; S3: transporting the negative electrode plate of the stacking facility onto the separator on the stacking table by the negative electrode plate manipulator of the stacking facility; S4: laying the separator unwound by the separator unwinding device by the separator drawing device on the negative electrode plate and cutting the separator by the separator cutting device; S5: transporting the positive electrode plate on the positive electrode plate conveying line onto the separator above the negative electrode plate by the positive electrode plate manipulator of the stacking facility; S6: laying the separator unwound by the separator unwinding device by the separator drawing device on the positive electrode plate; and S7: repeating steps S1 to S6. Thereby, battery cells can be manufactured, but such a stacking facility can only manufacture one single cell at a time, resulting in a decrease in manufacturing efficiency and an increase in manufacturing cost.

Summary of the Invention

Problems to be Solved by the Invention

[0003] In order to overcome the drawbacks of the prior art, the present invention provides a stacking facility that can stack a plurality of plates at one time, improve manufacturing efficiency, and reduce manufacturing costs.

Means for Solving the Problems

[0004] The present invention relates to a lamination apparatus comprising a frame, a positive electrode plate die-cutting device, a negative electrode plate die-cutting device installed facing the positive electrode plate die-cutting device in the front and rear, a lamination apparatus, a separator unwinding device, and a separator withdrawal device, wherein the positive electrode plate die-cutting device is installed in order from left to right at the upper end of the frame and comprises a positive electrode plate unwinding mechanism for unwinding a roll of positive electrode plates, a positive electrode plate V-angle punching mechanism for performing V-angle punching on both sides of the roll of positive electrode plates, a positive electrode plate cutting mechanism for cutting the roll of positive electrode plates into positive electrode plates, a positive electrode plate inspection mechanism for performing dimensional inspection and surface defect inspection of the positive electrode plates, and a positive electrode plate transport line for transporting the positive electrode plates, and the negative electrode plate die-cutting device is installed in order from left to right at the upper end of the frame and comprises a negative electrode plate unwinding mechanism for unwinding a roll of negative electrode plates, The stacking apparatus comprises a negative electrode plate V-angle punching mechanism that performs V-angle punching on both sides of the negative electrode plate raw material, a negative electrode plate cutting mechanism that cuts the negative electrode plate raw material into negative electrode plates, a negative electrode plate inspection mechanism that performs dimensional inspection and surface defect inspection of the negative electrode plates, and a negative electrode plate transport line that transports the negative electrode plates, the stacking apparatus comprises a stacking table, the separator unwinding device is arranged to unwind the separator, the separator pulling device is arranged to grip the separator and move it backward to lay the separator on the stacking table, lay the separator on a plurality of negative electrode plates on the stacking table, and lay the separator on a plurality of positive electrode plates on the stacking table, and both the separator unwinding device and the separator pulling device are located in front of and above the stacking apparatus. A positive electrode plate pre-positioning device is slidably mounted on the upper end of the frame and performs positional correction for multiple positive electrode plates, A negative electrode plate pre-positioning device is slidably mounted on the upper end of the frame, facing the positive electrode plate pre-positioning device in the front and rear, and performs positional correction relative to the negative electrode plate. The conveying device is installed at the upper end of the frame, located between the positive electrode plate conveying line and the negative electrode plate conveying line, and is arranged to convey a plurality of positive electrode plates on the positive electrode plate conveying line to the positive electrode plate pre-positioning device, a plurality of negative electrode plates on the negative electrode plate conveying line to the negative electrode plate pre-positioning device, a plurality of positive electrode plates on the positive electrode plate pre-positioning device onto the separator of the stacking table, and a plurality of negative electrode plates on the negative electrode plate pre-positioning device onto the separator of the stacking table, and the stacking table, the positive electrode plate pre-positioning device and the negative electrode plate pre-positioning device are all located on the conveying device, A cell slitting device is installed at the upper end of the frame, located to the right of the lamination device and the positive electrode plate pre-positioning device, and slits an integrated cell into multiple individual cells, The frame further comprises a blanking manipulator, which is installed at the upper end of the frame, positioned between the stacking device and the cell slitting device, and transports the integrated cells on the stacking platform to the cell slitting device. The lamination apparatus further comprises a lamination parallel movement linear module installed at the upper end of the frame, a lamination mounting plate installed at the upper end of the lamination parallel movement linear module, and a first heat cutting mechanism installed at the upper end of the lamination mounting plate, and is installed between the positive electrode plate pre-positioning device and the negative electrode plate pre-positioning device, the lamination stand is installed at the upper end of the lamination mounting plate, and the first heat cutting mechanism is installed in front of the lamination stand, providing a lamination apparatus that cuts separators and laminates multiple plates at once. [Effects of the Invention]

[0005] The present invention offers the following advantages.

[0006] This invention provides a positive electrode plate unwinding mechanism, a positive electrode plate V-angle punching mechanism, a positive electrode plate cutting mechanism, a positive electrode plate inspection mechanism, a positive electrode plate transport line, a negative electrode plate unwinding mechanism, a negative electrode plate V-angle punching mechanism, a negative electrode plate inspection mechanism, a negative electrode plate transport line, a separator unwinding device, a separator withdrawal device, a lamination device, a positive electrode plate pre-positioning device, a transport device, a cell slitting device, and a blanking manipulator, enabling the production of multiple individual cells at once, thereby improving manufacturing efficiency and reducing manufacturing costs. [Brief explanation of the drawing]

[0007] [Figure 1] This figure shows a plan view of a lamination equipment for stacking multiple plates at once, according to one embodiment of the present invention. [Figure 2] This figure shows the configuration of the V-angle punching mechanism for the positive electrode plate of the lamination apparatus shown in Figure 1. [Figure 3] Figure 2 shows the configuration of the punching lifting drive mechanism for the positive electrode plate V-angle punching mechanism. [Figure 4] This figure shows the configuration of the stacking apparatus for the stacking equipment shown in Figure 1. [Figure 5] This figure shows the explosion of the stacking apparatus shown in Figure 4. [Figure 6] This figure shows the structure of the stacking platform of the stacking device shown in Figure 4 after the stacking base has been removed. [Figure 7] This figure shows the configuration of the stacking platform, the first heat cutting mechanism, and the second heat cutting mechanism of the stacking apparatus shown in Figure 4. [Figure 8] This figure shows the configuration of the positive electrode plate pre-positioning device for the lamination equipment shown in Figure 1. [Figure 9] This figure shows the configuration of the conveying equipment for the stacking facility shown in Figure 1. [Figure 10] Figure 9 shows the configuration of the negative electrode plate external suction cup manipulator of the conveying device. [Figure 11] Figure 9 shows the configuration of the suction cup manipulator inside the negative electrode plate of the conveying device. [Figure 12] This figure shows the configuration of the cell slitting device in the lamination equipment shown in Figure 1. [Figure 13]Figure 12 shows the configuration of the slitting jig for the cell slitting device. [Figure 14] Figure 12 shows the configuration of the slitting mechanism of the cell slitting device. [Figure 15] This figure shows the explosion of the slit mechanism shown in Figure 14. [Figure 16] This figure shows the configuration of the blanking manipulator in the stacking equipment shown in Figure 1. [Figure 17] Figure 16 shows the structure of the blanking manipulator after the blanking base, blanking translation linear module, and blanking lifting linear module have been removed. [Modes for carrying out the invention]

[0008] In order to fully understand the purpose, features, and effects of the present invention, the concept, specific configuration, and technical effects of the present invention will be clearly and completely described below with reference to examples and drawings. Furthermore, the described examples represent only a portion of the present invention and do not encompass all embodiments. It is clear that all other embodiments that can be obtained by those skilled in the art without creative effort based on the examples of the present invention fall within the scope of protection of the present invention. In addition, all connection / connection relationships according to the present invention do not merely mean that members are directly connected, but that a better connection structure can be constructed by adding or removing connecting auxiliary parts depending on the specific implementation. Each technical feature in the present invention can be combined with one another, provided that they do not contradict each other.

[0009] Referring to Figure 1, one embodiment of the present invention provides a lamination apparatus for laminating multiple plates at once, comprising a frame, a positive electrode plate die-cutting device 10, a negative electrode plate die-cutting device 20 installed facing the positive electrode plate die-cutting device 10, a lamination device 30, a separator unwinding device 40, a separator withdrawal device 50, a positive electrode plate pre-positioning device 60a, a negative electrode plate pre-positioning device 60b, a transport device 70, a cell slitting device 80, and a blanking manipulator 90.

[0010] Referring to FIG. 1, in one embodiment of the present invention, there is provided a lamination facility for laminating a plurality of plates at once, comprising a frame, a positive electrode plate punching device 10, a negative electrode plate punching device 20 installed opposite to the positive electrode plate punching device 10 front and back, a lamination device 30, a separator unwinding device 40, a separator drawing device 50, a positive electrode plate preliminary positioning device 60a, a negative electrode plate preliminary positioning device 60b, a conveying device 70, a cell slit device 80, and a blanking manipulator 90. The positive electrode plate punching device 10 is installed in order from left to right at the upper end of the frame, and includes a positive electrode plate unwinding mechanism 11 for unwinding the positive electrode plate raw material, a positive electrode plate V-angle punching mechanism 12 for performing V-angle punching on both sides of the positive electrode plate raw material, a positive electrode plate cutting mechanism 13 for cutting the positive electrode plate raw material into positive electrode plates, a positive electrode plate inspection mechanism 14 for performing dimensional inspection and surface defect inspection on the positive electrode plates, and a positive electrode plate conveying line 15 for conveying the positive electrode plates. The negative electrode plate punching device 20 is installed in order from left to right at the upper end of the frame, and includes a negative electrode plate unwinding mechanism 21 for unwinding the negative electrode plate raw material, a negative electrode plate V-angle punching mechanism 22 for performing V-angle punching on both sides of the negative electrode plate raw material, a negative electrode plate cutting mechanism 23 for cutting the negative electrode plate raw material into negative electrode plates, a negative electrode plate inspection mechanism 24 for performing dimensional inspection and surface defect inspection on the negative electrode plates, and a negative electrode plate conveying line 25 for conveying the negative electrode plates. The lamination device 30 includes a lamination parallel movement linear module (not shown) provided at the upper end of the frame, a lamination mounting plate (not shown) provided at the upper end of the lamination parallel movement linear module, and a lamination table 31 provided at the upper end of the lamination mounting plate. The lamination parallel movement linear module is arranged to drive the lamination mounting plate to move left and right, and in conjunction with this, also move the lamination table 31. The separator unwinding device 40 is arranged to unwind the separator. The separator drawing device 50 is arranged to sandwich the separator and move it backward to lay the separator on the lamination table 31, lay the separator on a plurality of negative electrode plates on the lamination table 31, and lay the separator on a plurality of positive electrode plates on the lamination table 31. The positive electrode plate preliminary positioning device 60a is slidably installed at the upper end of the frame and is arranged to perform positioning correction on a plurality of positive electrode plates. The negative electrode plate preliminary positioning device 60b is installed slidably at the upper end of the frame, facing the positive electrode plate preliminary positioning device 60a front and back, and is arranged to perform preliminary positioning on a plurality of negative electrode plates. A stacking device 30 is installed between the positive electrode plate preliminary positioning device 60a and the negative electrode plate preliminary positioning device 60b. The conveying device 70 is installed at the upper end of the frame and is located between the positive electrode plate conveying line 15 and the negative electrode plate conveying line 25. It conveys a plurality of positive electrode plates on the positive electrode plate conveying line 15 to the positive electrode plate preliminary positioning device 60a, conveys a plurality of negative electrode plates on the negative electrode plate conveying line 25 to the negative electrode plate preliminary positioning device 60b, conveys a plurality of positive electrode plates on the positive electrode plate conveying line 15 onto the separator on the stacking table 31, and conveys a plurality of negative electrode plates on the negative electrode plate preliminary positioning device 60b onto the separator on the stacking table 31. Also, the stacking device 30, the positive electrode plate preliminary positioning device 60a, and the negative electrode plate preliminary positioning device 60b are arranged inside it. The separator unwinding device 40 is installed at the upper end of the conveying device 70 and is located in front of and above the stacking device 30. The separator drawing device 50 is installed inside the conveying device 70, is located in front of and above the stacking device 30, and is moved back and forth by the drive of the conveying device 70. The cell slit device 80 is installed at the upper end of the frame, is located to the right of the stacking device 30 and the positive electrode plate positioning device 60a, and is arranged to cut an integrated cell into a plurality of single cells. The blanking manipulator 90 is installed at the upper end of the frame, is located between the stacking device 30 and the cell slit device 80, and is arranged to convey the integrated cell on the stacking table 31 to the cell slit device 80.

[0011] The positive electrode plate unwinding mechanism 11, the positive electrode plate cutting mechanism 13, the positive electrode plate inspection mechanism 14, the positive electrode plate conveying line 15, the negative electrode plate unwinding mechanism 21, the negative electrode plate cutting mechanism 23, the negative electrode plate inspection mechanism 24, the negative electrode plate conveying line 25, the separator unwinding device 40, and the separator drawing device 50 are all of conventional configurations, so their descriptions are omitted here.

[0012] As shown in Figures 2 and 3, both the positive electrode plate V-angle punching mechanism 12 and the negative electrode plate V-angle punching mechanism 22 include a punching mounting frame 121 installed at the upper end of the frame, a punching die positioned inside the punching mounting frame 121, and a punching lifting drive mechanism. The punching die comprises an upper punching mold 122 and a lower punching mold 123, which are installed facing each other vertically. The lower punching mold 123 is installed at the bottom of the mounting frame 121 and is connected to the four corners of the upper punching mold 122 by telescopic rods 1221. Two V-shaped cutters are provided on the front and rear sides of the lower end of the upper punching mold 122, and two V-shaped grooves corresponding to the two V-shaped cutters are provided on the upper end of the lower punching mold 123, with two V-shaped grooves fitting into each other. The punching lifting drive mechanism comprises a punching reducer 1242, a punching motor 1241, a punching synchronous belt assembly, a punching rotating shaft 127, and a punching connecting rod 129. A punching mounting seat 126 is provided at the upper end of the punching mounting frame 121. The punching motor 1241 is installed on the punching reducer 1242, and its output end is connected to the input end of the punching reducer 1242. The punching reducer 1242 is located behind the punching mounting seat 126 and is installed at one end of the punching mounting seat 126. The punching synchronous belt assembly is installed to the right of the punching mounting seat 126. Through holes are provided on both sides of the punching mounting seat 126. The punching rotating shaft 127 has one end connected to the output terminal of the punching reducer 1242 via a punching synchronous belt assembly, and the other end is rotatably installed in a through hole of the punching mounting seat 126 via a punching rotating bearing and connected to a roller follower 128. The roller follower 128 is located to the left of the punching mounting base 126, and its center is located on one side of the axis of the punching rotating shaft 127, meaning that the roller follower 128 is installed eccentrically with respect to the punching rotating shaft 127. The roller follower 128 also fits into a rectangular hole 12621 of the punching connecting plate 1262. A punching mounting plate 1261 is slidably installed on one side of the punching mounting seat 126, with the punching mounting plate 1261 located to the left of the punching mounting seat 126, and the punching connecting plate 1262 installed on the side of the punching mounting plate 1261 closer to the punching mounting seat 126. The punching connecting rod 129 has one end installed at the lower end of the punching mounting plate 1261, and the other end is connected to the upper end of the punching upper formwork 122 via the punching block 1291 through the through hole 1211 in the upper end of the punching mounting frame 121.

[0013] The punching synchronous belt assembly comprises a punching drive wheel 1251 fitted on the outer circumference of the output end of a punching reducer 1242, a punching driven wheel 1252 fitted on the outer circumference of one end of a punching rotating shaft 127, and a punching synchronous belt 1253 fitted on the outer circumference of the punching drive wheel 1251 and the punching driven wheel 1252. When the punching motor 1241 drives the punching reducer 1242 to rotate the punching drive wheel 1251, the punching driven wheel 1252 and the punching synchronous belt 1253 also rotate the punching rotating shaft 127, which in turn rotates the roller follower 128, which in turn moves the punching connecting plate 1262 and the punching mounting plate 1261 up and down relative to the punching mounting seat 126, which in turn moves the punching connecting rod up and down, and further in conjunction moves the punching upper formwork 122 and the two V-shaped cutters up and down.

[0014] In actual application, the positive electrode plate unwinding mechanism 11 can unwind the positive electrode plate raw material. The unwound positive electrode plate raw material passes between the punching upper tape 122 and the punching lower mold 123 of the positive electrode plate V-angle punching mechanism 12. The punching motor 1241 of the positive electrode plate V-angle punching mechanism 12 drives the punching upper tape 122 and the two V-shaped cutters downward at regular intervals, allowing the two V-shaped cutters to perform V-angle punching on both sides of the positive electrode plate raw material. The positive electrode plate raw material then enters the positive electrode plate cutting mechanism 13, where it can be cut into positive electrode plates. The positive electrode plate then enters the positive electrode plate inspection mechanism 14, which performs dimensional and surface defect inspections on the positive electrode plate. Positive electrode plates found to be unacceptable are discarded into the positive electrode plate NG box, while positive electrode plates found to be acceptable are transported to the positive electrode plate transport line 15, where the positive electrode plates are transported. Simultaneously, the negative electrode plate unwinding mechanism 21 unwinds the negative electrode plate roll, which is then passed between the punching upper tape 122 and the punching lower tape 123 of the negative electrode plate V-angle punching mechanism 22. The punching motor 1241 of the negative electrode plate V-angle punching mechanism 22 drives the punching upper tape 122 at regular intervals, moving the two V-shaped cutters downward, thereby performing V-angle punching on both sides of the negative electrode plate roll with the two V-shaped cutters. The negative electrode plate roll then enters the negative electrode plate cutting mechanism 23, where it is cut into negative electrode plates. The negative electrode plates then enter the negative electrode plate inspection mechanism 24, which performs dimensional inspection and surface defect inspection on the negative electrode plates. Negative electrode plates that are found to be unacceptable are discarded into the negative electrode plate NG box, while negative electrode plates that are found to be acceptable are transported to the negative electrode plate transport line 25, where the negative electrode plates are transported.

[0015] As shown in Figures 4 to 7, the stacking base 31 comprises a stacking base 311 installed at the upper end of the stacking mounting plate, two stacking pallets 312 installed side by side and connected to each other, a stacking bottom plate 313, and two replenishment assemblies. Two stacking support plates 314 are provided at the lower end of the stacking pallet 312, spaced apart front to back, and both of these stacking support plates 314 are installed at the upper end of the stacking bottom plate 313. Two stacking connecting plates 315 are provided at the lower end of the stacking bottom plate 313, and these two stacking connecting plates 315 are each connected to the stacking connecting columns at the upper end of the stacking base 311. The stacking pallet 312 is provided with multiple through holes that penetrate its upper and lower ends, spaced apart from left to right, and each corresponds to multiple lower grippers 982 of the blanking manipulator 90.

[0016] The two replenishment assemblies correspond to two stacked pallets 312, respectively. Each replenishment assembly comprises multiple replenishment blocks 316, a replenishment mounting plate 317, and two replenishment cylinders 318. The multiple replenishment blocks 316 correspond one-to-one with multiple through holes in the corresponding stacked pallets 312 and fit together. During the stacking process, the fitting of the replenishment blocks 316 with the corresponding through holes allows the replenishment blocks 317 and the stacked pallets 312 to jointly support the separator, negative electrode plate, and positive electrode plate, resulting in good stability. The stacked support plate 314 has multiple relief grooves 3141 at its upper end that correspond to and communicate with multiple through holes, respectively, and serve to relieve the downward movement of the corresponding replenishment blocks 317. The replenishment mounting plate 317 is located between the two stacked support plates 314 of the corresponding stacked pallets 312, and between the stacked bottom plate 313 and the corresponding stacked pallet 312. The lower ends of the replenishment blocks 316 are each connected to the upper ends of the replenishment mounting plate 317. Two replenishment cylinders 318 are each installed at the lower end of the laminated base plate 313, and their output ends are connected to the lower end of the laminated mounting plate 317 through through holes in the laminated base plate 313. The two replenishment cylinders 318 drive the replenishment mounting plate 317 up and down, and in conjunction with this, the multiple replenishment blocks 316 also move up and down. As the multiple replenishment blocks 316 move downward, they separate from their corresponding through holes, and at this time, the multiple lower grippers 982 of the blanking manipulator 90 are inserted into the multiple through holes in the two laminated pallets, respectively.

[0017] The lamination device 30 further comprises two first pressing blade mechanisms 35 and two second pressing blade mechanisms 36 installed at the upper end of the lamination mounting plate. The two first pressing blade mechanisms 35 and the two second pressing blade mechanisms 36 move left and right in conjunction with the left and right movement of the lamination mounting plate. The two first pressing blade mechanisms 35 are installed facing each other left and right, and the two second pressing blade mechanisms 36 are also installed facing each other left and right, with the second pressing blade mechanism 36 located on the left corresponding to the first pressing blade mechanism 35 located on the left, and the second pressing blade mechanism 36 located on the right corresponding to the first pressing blade mechanism 35 located on the right. The two second pressing blade mechanisms 36 each press on both sides of the separator on the lamination base 31, and the two first pressing blade mechanisms 35 are arranged to press on one end of the first negative electrode plate away from the center of the lamination base 31 and the other end of the last negative electrode plate away from the center of the lamination base 31, respectively. Furthermore, the two first pressing blade mechanisms 35 are positioned to press one end of the first positive electrode plate away from the center of the stacking base 31 and the other end of the last positive electrode plate away from the center of the stacking base 31, respectively.

[0018] The first presser blade mechanism 35 comprises a first presser blade seat 351 installed at the upper end of the laminate mounting plate, a first left-right movement assembly installed on the first presser blade seat 351, a first presser blade base 352 slidably installed at the upper end of the first presser blade seat 351, a plurality of first presser blade cylinders 353 installed at the upper end of the first presser blade base 352, and a plurality of first presser blades 358. In this embodiment, there are four first presser blade cylinders 353, and the number of first presser blades 358 corresponds to the number of first presser blade cylinders 353. The first presser blade seat 351 is located below the laminate bottom plate 313, and the laminate base 311 is located between the first presser blade seats 351 of the two first presser blade mechanisms 35. Multiple first presser blade cylinders 353 are installed at intervals from front to back on the upper end of the first presser blade base 352, and two stacking pallets 312 are positioned between the multiple first presser blade cylinders 353 of the two first presser blade mechanisms 35. Multiple first presser blades 358 correspond to each of the multiple first presser blade cylinders 353 and are installed at the upper end of the corresponding first presser blade cylinders 353, and the first presser blades 358 are positioned above the stacking base 31. The first left-right movement assembly employs a motor + feed screw nut + synchronous belt structure and is arranged to drive the first presser blade base 352, the multiple first presser blade cylinders 353 and the multiple first presser blades 358 to move left and right, and the first presser blade cylinders 353 are arranged to move the corresponding first presser blades 358 up and down.

[0019] The second presser blade mechanism 36 comprises a second presser blade seat 361 installed at the upper end of the laminated mounting plate, a second left-right movement assembly installed on the second presser blade seat 361, a second presser blade base 362, a plurality of second presser blade cylinders 363, and a plurality of second presser blades 368. The number of second presser blade cylinders 363 and second presser blades 368 corresponds to the number of first presser blade cylinders 353, with four of each. The first presser blade seat 351 of the first presser blade mechanism 35 is located between the second presser blade seat 361 of the corresponding second presser blade mechanism 36 and the laminated base 311. The plurality of second presser blade cylinders 363 are installed at intervals from front to back at the upper end of the second presser blade base 362, and each second presser blade cylinder 363 is located between two adjacent first presser blade cylinders 353 of the corresponding first presser blade mechanism 35. Multiple second presser blades 368 each correspond to a second presser blade cylinder 363 and are installed at the upper end of the second presser blade cylinder 363, with each second presser blade 368 positioned between two adjacent first presser blades 358. The configuration of the second left-right movement assembly is the same as that of the first left-right movement assembly. The second left-right movement assembly is arranged to drive the second presser blade base 362, multiple second presser blade cylinders 363, and multiple second presser blades 368 to move left and right, with the second presser blade cylinders 363 being arranged to move the corresponding second presser blades 368 up and down.

[0020] The lamination device 30 further includes a first heat cutting mechanism 38 and a second heat cutting mechanism 39 installed at the upper end of the lamination mounting plate. The first heat cutting mechanism 38 and the second heat cutting mechanism 39 move left and right in conjunction with the left and right movement of the lamination mounting plate. The first heat cutting mechanism 38 and the second heat cutting mechanism 39 are installed facing each other front and back, with the first heat cutting mechanism 38 located in front of the lamination base 31 and the second heat cutting mechanism 39 located behind the lamination base 31. The first heat cutting mechanism 38 is positioned to cut the separator and seal the front edge of the integrated cell, and the second heat cutting mechanism 39 is positioned to seal the rear edge of the integrated cell. Both the first heat-cutting mechanism 38 and the second heat-cutting mechanism 39 include two heat-cutting bases 38a installed opposite each other, two heat-cutting mounting plates 381 installed opposite each other, two heat-cutting support plates 382 installed opposite each other, two heat-cutting lifting cylinders 383, a separator heat-cutting wire 384, and a heat-cutting tension cylinder 387. Both heat-cutting bases 38a are installed at the upper ends of the stacking mounting plates. The two heat-cutting mounting plates 381 are installed at the upper ends of the two heat-cutting bases 38a, respectively, and the two heat-cutting support plates 382 are slidably installed on the side of the two heat-cutting mounting plates 381 closer to the stacking base 31, and partially protrude from one end of the two heat-cutting mounting plates 381 closer to the center of the stacking base 31. Two thermal cutting lifting cylinders 383 are installed on the side of the two thermal cutting mounting plates 381 closest to the stacking base 31, and their output ends are connected to the upper ends of the two thermal cutting support plates 382, ​​respectively, and are arranged to drive the two thermal cutting support plates 382 to move up and down. A separator thermal cutting wire 384 is located below the upper end of the stacking base 31, with a first thermal cutting block 385 at one end and a second thermal cutting block 386 at the other end. The stacking base 31 is located between the first thermal cutting block 385 and the second thermal cutting block 386. The first thermal cutting block 385 is installed on the side of one thermal cutting support plate 382 closer to the stacking base 31 via a thermal cutting adapter board 3821, the second thermal cutting block 386 is connected to the output end of a thermal cutting tension cylinder 387, the thermal cutting tension cylinder 387 is installed on the side of the other thermal cutting support plate 382 closer to the stacking base 31, and is positioned to drive the second thermal cutting block 386 to move from side to side.In conjunction with the vertical movement of the two thermal cutting support plates 382, ​​the thermal cutting adapter board 3821, the first thermal cutting block 385, the second thermal cutting block 386, the thermal cutting tension cylinder 387, and the separator thermal cutting wire 384 also move vertically. Since one end and the other end of the separator thermal cutting wire 384 are electrically connected to the control system, the control system can supply power to the separator thermal cutting wire 384. When power is supplied to the separator thermal cutting wire 384, it generates heat, cutting the separator and thermal welding the edges of the separator. In conjunction with the horizontal movement of the second thermal cutting block 386, the other end of the separator thermal cutting wire 384 also moves horizontally, allowing the separator thermal cutting wire 384 to be pulled out. This avoids uneven cutting edges when the separator is cut by the separator thermal cutting wire 384, improving the quality of the integrated cell.

[0021] In this embodiment, the first heat-cutting block 385 of the first heat-cutting mechanism 38 is installed on the side of the heat-cutting support plate 382 located to the left, closer to the stacking base 31, via the heat-cutting adapter board 3821, and the heat-cutting tension cylinder 387 of the first heat-cutting mechanism 38 is installed on the side of the heat-cutting support plate 382 located to the right, closer to the stacking base 31. The first heat-cutting mounting block 385 of the second heat-cutting mechanism 39 is installed on the side of the heat-cutting support plate 382 located to the right, closer to the stacking base 31, via the heat-cutting adapter board 3821, and the heat-cutting tension cylinder 387 of the second heat-cutting mechanism 39 is installed on the side of the heat-cutting support plate 382 located to the left, closer to the stacking base 31.

[0022] When actually applying this, follow these steps: S1: First, the separator is unwound by the separator unwinding device 40, the unwound separator is gripped by the separator pulling device 50, and then the separator pulling device 50 is driven backward by two multi-movable linear motors 72, so that the separator moves backward in conjunction with the movement of the separator pulling device 50 and is laid on the two stacking pallets 312 and multiple replenishment blocks 316 of the stacking base 31, forming a first layer of cell-integrated separators. S2: The second left-right moving assemblies of the two second pressing blade mechanisms 36 each drive a plurality of corresponding second pressing blades 368 to move the two second pressing blade mechanisms 36 toward the stacking base 31 until the second pressing blades 368 of the two second pressing blade mechanisms 36 are positioned above both sides of the first layer separator, and then the two second pressing blade mechanisms 36 each drive the plurality of second pressing blades 368 to move toward the bottom until they can press down on both sides of the first layer separator. S3: Then, the separator heat cutting wire 384 is driven upward by the two heat cutting lifting cylinders 383 of the first heat cutting mechanism 38, so that the first layer of separator can be cut by the separator heat cutting wire 384. After that, the separator heat cutting wire 384 is driven downward by the two heat cutting lifting cylinders 383 to move it back to its initial position. After that, the first layer of separator is released by the separator pull-out device 50, and the separator pull-out device 50 is driven by the two multi-movable linear motors 72 to move it back to its initial position. S4: The transfer device 70 then picks up multiple negative electrode plates (for example, four negative electrode plates) on the negative electrode plate pre-positioning device 60a and places these negative electrode plates on the first layer separator of the stacking base 31. The multiple negative electrode plates are placed at intervals from left to right, so that the first and last negative electrode plates do not cover both sides of the first layer separator. Subsequently, the first left-right movement assemblies of the two first pressing blade mechanisms 35 drive the corresponding multiple first pressing blades 358 of each of the two first pressing blade mechanisms 35, moving them toward the stacking base 31 until the multiple first pressing blades 358 of each are positioned above one end of the first negative electrode plate away from the center of the stacking base 31 and above one end of the last negative electrode plate away from the center of the stacking base 31. Subsequently, the first pressing blade cylinder 353 drives the corresponding multiple first pressing blades 358 downward, so that the multiple first pressing blades 358 of the two first pressing blade mechanisms 35 each press down on the upper part of one end of the first negative electrode plate away from the center of the stacking base 31, and press down on the upper part of the last negative electrode plate away from the center of the stacking base 31. Simultaneously, the second pressing blade cylinders 363 of the two second pressing blade mechanisms 36 drive the corresponding second pressing blades 368 upward, thereby separating the multiple second pressing blades 368 of the two second pressing blade mechanisms 36 from the separator of the first layer. Then, the second left-right moving assemblies of the two second pressing blade mechanisms 36 move the multiple corresponding second pressing blades 368 back to their initial positions away from the stacking base 31, thereby withdrawing the multiple second pressing blades 368 of the second pressing blade mechanism 36 from between the first negative electrode plate and the separator of the first layer, and from between the last negative electrode plate and the separator of the first layer. S5: The separator unwound by the separator pulling device 50 is held in place, and the separator pulling device 50 is driven backward by two multi-movable linear motors 72, thereby moving the separator pulling device 50 backward and laying the separator on multiple negative electrode plates on the stacking base 31, forming the second layer of separators for the integrated cell. S6: Then, the two second pressing blade mechanisms 36 each press down on both sides of the second layer separator. The operation of this step is the same as the operation of step S2. Simultaneously, the first pressing blade cylinders 353 of the two first pressing blade mechanisms 35 move the corresponding first pressing blades 358 upward, thereby separating the multiple first pressing blades 358 of the two first pressing blade mechanisms 35 from the end of the first negative electrode plate stacking base 31 away from the center, and from the end of the last negative electrode plate stacking base 31 away from the center, respectively. Subsequently, the first left-right movement assemblies of the two first pressing blade mechanisms 35 move the multiple corresponding first pressing blades 358 back to their initial positions away from the stacking base 31, thereby withdrawing the multiple first pressing blades 358 of the two first pressing blade mechanisms 35 from between the first negative electrode plate and the second layer separator, and from between the last negative electrode plate and the second layer separator, respectively. S7: The operation of this step is the same as the operation of step S3. S8: The transport device 70 then picks up multiple positive electrode plates (for example, four positive electrode plates) on the positive electrode plate pre-positioning device 60b and places the multiple positive electrode plates on the second layer separator of the stacking base 31. The multiple positive electrode plates are placed at intervals from left to right, and each positive electrode plate corresponds to one negative electrode plate. Subsequently, the two first pressing blade mechanisms 35 press down on one end of the first positive electrode plate away from the center of the stacking base 31, and on the other end of the last positive electrode plate away from the center of the stacking base 31. S9: The separator unwound by the separator pulling device 50 is held in place, and the separator pulling device 50 is driven backward by two multi-movable linear motors 72. The separator moves backward in conjunction with the separator pulling device 50, allowing the separator to be laid on multiple positive electrode plates on the stacking base 31, forming the third layer of separators for the integrated cell. S10: The two second pressing blade mechanisms 36 each press down on both sides of the separator of the second layer. The operation of this step is the same as the operation of step S2. Simultaneously, the first pressing blade cylinders 353 of the two first pressing blade mechanisms 35 move the corresponding first pressing blades 358 upward, thereby separating the multiple first pressing blades 358 of the two first pressing blade mechanisms 35 from the end of the stacking base 31 away from the center of the first positive electrode plate and the end of the stacking base 31 away from the center of the last positive electrode plate. Then, the first left-right movement assemblies of the two first pressing blade mechanisms 35 move the multiple corresponding first pressing blades 358 back to their initial positions away from the stacking base 31, thereby withdrawing the multiple first pressing blades 358 of the two first pressing blade mechanisms 35 from between the first positive electrode plate and the separator of the third layer and from between the last positive electrode plate and the separator of the third layer. S11: Steps S4 to S10 are repeated until the separator for the last layer is laid on multiple positive electrode plates of the last layer, thereby obtaining an integrated cell. S12: The separator heat cutting wire 384 is driven upward by the two heat cutting lifting cylinders 383 of the first heat cutting mechanism 38 and the second heat cutting mechanism 39. In the process of moving the separator heat cutting wire 384 of the first heat cutting mechanism 38 and the second heat cutting mechanism 39 upward, the front and rear edges of all the separators of the integrated cell are heat-welded by the separator heat cutting wire 384 of the first heat cutting mechanism 38 and the second heat cutting mechanism 39. By fusing the front and rear edges of all the separators, the front and rear sides of the integrated battery cell can be sealed. After that, the separator heat cutting wire 384 is driven downward by the two heat cutting lifting cylinders 383 of the first heat cutting mechanism 38 and the second heat cutting mechanism 39 to move it back to its initial position.

[0023] As shown in Figure 8, both the positive electrode plate pre-positioning device 60a and the negative electrode plate pre-positioning device 60b include a plurality of pre-positioning bases 61, a plurality of alignment robots 62, and a plurality of positioning platforms 63. The plurality of pre-positioning bases 61 are interconnected, arranged sequentially from left to right on the upper end of the frame, and slidably mounted. The plurality of alignment robots 62 correspond one-to-one with the plurality of pre-positioning bases 61, with each robot mounted on the upper end of the corresponding pre-positioning base 61. The plurality of positioning platforms 63 also correspond one-to-one with the plurality of alignment robots 62, with each platform mounted on the upper end of the corresponding alignment robot 62. The alignment robots 62 are arranged to drive and rotate the corresponding positioning platforms 63. In this embodiment, there are four pre-positioning bases 61, and the number of alignment robots 62 and positioning platforms 63 also corresponds to the number of pre-positioning bases 61, with four of each.

[0024] As shown in Figures 9 to 11, the transport device 70 comprises two transport mounting bases 71 installed facing each other on the left and right sides, a positive electrode plate external suction cup manipulator 73, a positive electrode plate internal suction cup manipulator 74, a negative electrode plate external suction cup manipulator 75, and a negative electrode plate internal suction cup manipulator 76. The transport mounting bases 71 are provided on the upper ends of the frame via transport bases 711, and the number of transport bases 711 can be set according to the actual situation. Multi-movable linear motors 72 are provided on the sides of the two transport mounting bases 71 that are close to each other. The negative electrode plate external suction cup manipulator 75 and the positive electrode plate external suction cup manipulator 73 are installed symmetrically front to back, and are located above the negative electrode plate transport line 25 and above the positive electrode plate transport line 15, respectively. The negative electrode plate external suction cup manipulator 75 and the positive electrode plate internal suction cup manipulator 74 are installed symmetrically front to back, and are located between the negative electrode plate external suction cup manipulator 75 and the positive electrode plate external suction cup manipulator 73. Both ends of the negative electrode plate external suction cup manipulator 75, the negative electrode plate internal suction cup manipulator 76, the positive electrode plate external suction cup manipulator 74, and the positive electrode plate external suction cup manipulator 73 are each connected to two movable element linear motors 72, and the two movable element linear motors 72 are arranged to drive the negative electrode plate external suction cup manipulator 75, the negative electrode plate internal suction cup manipulator 76, the positive electrode plate external suction cup manipulator 74, and the positive electrode plate external suction cup manipulator 73 to move back and forth. The negative electrode plate pre-positioning device 60b is located below the space between the negative electrode plate outer suction cup manipulator 75 and the negative electrode plate inner suction cup manipulator 76, the positive electrode plate pre-positioning device 60a is located below the space between the positive electrode plate inner suction cup manipulator 74 and the positive electrode plate outer suction cup manipulator 73, and the stacking device 30 is located below the space between the negative electrode plate inner suction cup manipulator 76 and the positive electrode plate inner suction cup manipulator 74. The separator unwinding device 40 is installed on the upper ends of two transport mounting tables 71 and is located above the negative electrode plate outer suction cup manipulator 75 and the negative electrode plate inner suction cup manipulator 76. The separator withdrawal device 50 is located between the negative electrode plate inner suction cup manipulator 76 and the positive electrode plate inner suction cup manipulator 74, and both ends of the device are connected to two multi-movable element linear motors 72, which drive the separator withdrawal device 50 to move back and forth.

[0025] The negative electrode plate external suction cup manipulator 75 and the positive electrode plate external suction cup manipulator 73 each include two external suction cup lifting linear modules 731, each connected to two multi-movable linear motors 72, two external suction cup parallel movement linear modules 732, each connected at both ends to the two external suction cup lifting linear modules 731, and a plurality of external suction cup assemblies, each installed on the side of the external suction cup parallel movement linear module 732 away from the stacking device 30 and arranged at intervals from left to right. The two multi-movable linear motors 72 each drive the two external suction cup lifting linear modules 731 to move back and forth, and in conjunction with this, the external suction cup parallel movement linear modules 732 and the plurality of external suction cup assemblies also move back and forth. The two external suction cup lifting linear modules 731 drive the external suction cup parallel movement linear modules 732 to move up and down, and in conjunction with this, the plurality of external suction cup assemblies also move up and down. The external suction cup parallel movement linear module 732 drives multiple external suction cup assemblies to move them left and right. In this embodiment, there are four external suction cup assemblies. Each external suction cup assembly comprises an external suction cup base 733, an external suction cup mounting seat 734, and a group of external suction cups arranged at intervals from front to back. The number of external suction cup groups can be set according to the actual situation. The external suction cup base 733 is installed on the side of the external suction cup parallel movement linear module 732 away from the stacking device 30, and the external suction cup mounting seat 734 is installed at the lower end of the external suction cup base 733. The external suction cup group comprises an external suction cup mounting plate 735 and external suction cups 736 that are installed at left-right intervals, penetrating the external suction cup mounting plate 735. The external suction cup mounting plate 735 is installed at the lower end of the external suction cup mounting base 734, and one end of the external suction cup 736 is located below the external suction cup mounting plate 735, while the other end 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 groups of the negative electrode plate external suction cup manipulator 75 are all connected to the first vacuum exhaust system, and the other ends of the external suction cups 736 of the multiple external suction cup groups of the positive electrode plate external suction cup manipulator 73 are all connected to the second vacuum exhaust system.By using the first and second vacuum evacuation systems to evacuate the outer suction cups 736 of the multiple outer suction cup assemblies of the negative electrode plate outer suction cup manipulator 75 and the positive electrode plate outer suction cup manipulator 73, the outer suction cups 736 of the multiple outer suction cup assemblies of the negative electrode plate outer suction cup manipulator 75 and the positive electrode plate outer suction cup manipulator 73 can each attract multiple negative electrode plates (e.g., 4) and multiple positive electrode plates (e.g., 4). By stopping the vacuum evacuation of the outer suction cups 736 of the multiple outer suction cup assemblies of the negative electrode plate outer suction cup manipulator 75 and the positive electrode plate outer suction cup manipulator 73 using the first and second vacuum evacuation systems, the outer suction cups 736 of the multiple outer suction cup assemblies of the negative electrode plate outer suction cup manipulator 75 and the positive electrode plate outer suction cup manipulator 73 can each release multiple negative electrode plates (e.g., 4) and multiple positive electrode plates (e.g., 4).

[0026] The negative electrode plate internal suction cup manipulator 74 and the positive electrode plate internal suction cup manipulator 76 each comprise two internal suction cup lifting linear modules 741, an internal suction cup parallel movement linear module 742, and a plurality of internal suction cup assemblies arranged at intervals from left to right. Each of the two internal suction cup lifting linear modules 741 is connected to two multi-movable element linear motors 72, and both ends of the internal suction cup parallel movement linear module 742 are each connected to two internal suction cup lifting linear modules 741, with the plurality of internal suction cup assemblies each installed on the side of the internal suction cup parallel movement linear module 742 away from the stacking device 30. The two multi-movable element linear motors 72 each drive the two internal suction cup lifting linear modules 741 to move back and forth, and in conjunction with this, the internal suction cup parallel movement linear module 742 and the plurality of internal suction cup assemblies also move back and forth. Two internal suction cup lifting linear modules 741 drive multiple internal suction cup assemblies to move up and down, and the multiple internal suction cup assemblies also move up and down in conjunction with this. An internal suction cup parallel movement linear module 742 drives multiple internal suction cup assemblies to move left and right. In this embodiment, there are four internal suction cup assemblies. An internal suction cup assembly comprises an internal suction cup base 743, an internal suction cup mounting seat 744, two internal suction cup cylinders 745 installed facing each other front and back, and an internal suction cup plate 746. The internal suction cup base 743 is installed on the side of the internal suction cup parallel movement linear module 742 away from the stacking device 30, and the internal suction cup mounting seat 744 is installed at the lower end of the internal suction cup base 743. Two internal suction cup cylinders 745 are installed at both ends of an internal suction cup mounting base 744, and an internal suction cup plate 746 is installed below the internal suction cup mounting base 744. The output ends of the two internal suction cup cylinders 745 are connected to the upper ends of the internal suction cup plate 746. The two internal suction cup cylinders 745 are arranged to drive the internal suction cup plate 746 up and down. Multiple suction holes are uniformly provided at the lower end of the internal suction cup plate 746, with an air passage inside, and a joint is provided at the upper end. The air passage communicates with the suction holes and the joint, and the joints of the negative electrode plate internal suction cup manipulator 76 and the positive electrode plate internal suction cup manipulator 74 are connected to a third vacuum exhaust system and a fourth vacuum exhaust system, respectively.The third and fourth vacuum evacuation systems perform vacuum evacuation from the suction holes via the corresponding air passages and fittings, allowing the internal suction cups 746 of the multiple internal suction cup assemblies of the negative electrode plate internal suction cup manipulator 76 and positive electrode plate internal suction cup manipulator 74 to adsorb multiple negative electrode plates (e.g., 4) and multiple positive electrode plates (e.g., 4), respectively. The third and fourth vacuum evacuation systems stop vacuum evacuation from the suction holes via the corresponding air passages and fittings, allowing the internal suction cups 746 of the multiple internal suction cup assemblies of the negative electrode plate internal suction cup manipulator 76 and positive electrode plate internal suction cup manipulator 74 to release multiple negative electrode plates (e.g., 4) and multiple positive electrode plates (e.g., 4), respectively.

[0027] In actual application, first, the negative electrode plate external suction cup manipulator 75 is driven forward by two multi-movable linear motors 72, so that multiple external suction cup assemblies of the multiple negative electrode plate external suction cup manipulators 75 are positioned above the negative electrode plate transport line 25. Then, the external suction cup parallel movement linear module 732 of the negative electrode plate external suction cup manipulator 75 is driven left and right to move the multiple external suction cup assemblies, thereby adjusting the left and right positions of the multiple external suction cup assemblies. Next, the multiple external suction cup assemblies are driven downward by two external suction cup lifting linear modules 731 of the negative electrode plate external suction cup manipulator 75, so that multiple external suction cup groups of the multiple external suction cup assemblies each attract multiple negative electrode plates (for example, 4 plates) on the negative electrode plate transport line 25. Finally, the multiple external suction cup assemblies are driven upward by two external suction cup lifting linear modules 731 of the negative electrode plate external suction cup manipulator 75 to move back up to their initial position. Then, the two movable linear motors 72 drive the multiple external suction cup assemblies of the negative electrode plate external suction cup manipulator 75 backward, so that the multiple negative electrode plates are positioned above the multiple positioning platforms 63 of the negative electrode plate pre-positioning device 60b. Then, the two external suction cup lifting linear modules 731 of the negative electrode plate external suction cup manipulator 75 drive the multiple external suction cup assemblies downward, so that the multiple negative electrode plates are placed on the multiple positioning platforms 63 of the negative electrode plate pre-positioning device 60b via the multiple external suction cup assemblies. Then, the two external suction cup lifting linear modules 731 of the negative electrode plate external suction cup manipulator 75 drive the multiple external suction cup assemblies upward to their initial position, and then the two movable linear motors 72 move the multiple external suction cup assemblies of the negative electrode plate external suction cup manipulator 72 forward, so that the multiple negative electrode plates on the negative electrode plate transport line 25 continue to be held in place. Multiple negative electrode plates are placed on multiple positioning platforms 63 of the negative electrode plate pre-positioning device 60b, and then multiple pre-positioning robots 62 of the negative electrode plate pre-positioning device 60b drive and rotate the corresponding positioning platforms 63, thereby allowing for positional correction of each of the multiple negative electrode plates and ensuring the accuracy of the positions of the multiple negative electrode plates.Then, the two multi-movable linear motors 72 drive the multiple internal suction cup assemblies of the negative electrode plate internal suction cup manipulator 76 to move forward, thereby positioning each of the multiple internal suction cup assemblies above the multiple negative electrode plates on the negative electrode plate pre-positioning device 60b. Then, the internal suction cup parallel movement linear module 742 of the negative electrode plate internal suction cup manipulator 76 drives the multiple internal suction cup assemblies to move left and right, thereby adjusting the left and right positions of the multiple internal suction cup assemblies. Then, the two internal suction cup lifting linear modules 741 of the negative electrode plate internal suction cup manipulator 76 drive the multiple internal suction cup assemblies downward to a predetermined position, and then the two internal suction cup cylinders 745 drive the corresponding internal suction cup plates 746 downward, so that the internal suction cup plates 746 of the multiple internal suction cup assemblies each adsorb to the corresponding negative electrode plates, and then the two internal suction cup cylinders 745 drive the corresponding internal suction cup plates 746 upward to the initial position. Then, the two internal suction cup lifting linear modules 741 of the negative electrode plate internal suction cup manipulator 76 drive the multiple internal suction cup assemblies upward to their initial positions. Then, the two multi-movable linear motors 72 drive the multiple internal suction cup assemblies of the negative electrode plate internal suction cup manipulator 76 backward, positioning each of the multiple internal suction cup assemblies above the stacking base 31. Then, the two internal suction cup lifting linear modules 741 of the negative electrode plate internal suction cup manipulator 76 drive the multiple internal suction cup assemblies downward to their predetermined positions, and then, the two internal suction cup cylinders 745 move the corresponding internal suction cup plates 746 downward, thereby placing the multiple negative electrode plates on the separator of the stacking base 31 via the internal suction cup plates 746 of the multiple internal suction cup assemblies. Then, the two internal suction cup cylinders 745 drive the corresponding internal suction cup plates 746 upward to their initial position, and then the two internal suction cup lifting linear modules 741 of the negative electrode plate internal suction cup manipulator 76 drive the multiple internal suction cup assemblies upward to their initial position. Finally, the two multi-movable linear motors 72 drive the multiple internal suction cup assemblies of the negative electrode plate internal suction cup manipulator 76 forward to their initial position.

[0028] The operating principle of the positive electrode plate external suction cup manipulator 73 is the same as that of the negative electrode plate external suction cup manipulator 75. The only difference is that the direction of movement of the positive electrode plate external suction cup manipulator 73, which is driven by two multi-movable element linear motors 72, is opposite to that of the negative electrode plate external suction cup manipulator 75. The multiple external suction cup assemblies of the positive electrode plate external suction cup manipulator 73 adsorb multiple positive electrode plates on the positive electrode plate transport line 15, and the multiple positive electrode plates are placed on multiple positioning platforms 63 of the positive electrode plate pre-positioning device 60a. As a result, multiple alignment robots 62 of the positive electrode plate pre-positioning device 60a drive and rotate their respective positioning platforms 63, performing positional corrections on each of the multiple positive electrode plates and ensuring the accuracy of the positions of the multiple positive electrode plates. The operating principle of the positive electrode plate internal suction cup manipulator 74 is the same as that of the negative electrode plate internal suction cup manipulator 76. The only difference is that the direction of movement of the positive electrode plate internal suction cup manipulator 74, which is driven by two multi-movable linear motors 72, is opposite to that of the negative electrode plate internal suction cup manipulator 76. The multiple internal suction cup assemblies of the positive electrode plate internal suction cup manipulator 74 attract multiple positive electrode plates on the positive electrode plate pre-positioning device 60a, and the multiple positive electrode plates are placed on the separator of the stacking base 31.

[0029] As shown in Figures 12 to 15, the cell slitting device 80 comprises a slitting base 81, a base linear module 82 installed at the upper end of the frame, a plurality of slitting fixtures 83, and a slitting mechanism 84. The slitting base 81 is installed at the upper end of the base linear module 82 and is driven by the base linear module 82 to move left and right. The plurality of slitting fixtures 83 are installed at intervals from left to right. The slitting fixtures 83 and the slitting mechanism 84 are installed at the upper end of the slitting base 81, and the plurality of slitting fixtures 83 and the slitting mechanism 84 can move left and right in conjunction with the left and right movement of the slitting base 81. The number of slitting fixtures 83 corresponds to the number of external suction cup assemblies and internal suction cup assemblies of the conveying device 70, and the cell slitting device 80 shown in the drawings of this embodiment has three slitting fixtures 83.

[0030] The slitting jig 83 comprises a jig mounting plate 831 installed at the upper end of the slitting base 81, a lower retaining mounting seat 832, an upper retaining mounting seat 833, and two slit lifting cylinders 834. The lower retaining mounting seat 832 is installed at the upper end of the jig mounting plate 831, and its upper end is provided with a plurality of first relief grooves 8321 installed at intervals from front to back. The upper retaining mounting seat 833 is located above the lower retaining mounting seat 832, facing the lower retaining mounting seat 832, and its lower end is provided with a plurality of second relief grooves 8331 that correspond one-to-one with the plurality of first relief grooves 8321. The lower retaining mounting seat 832 is installed between the two slit lifting cylinders 834. The two slit lifting cylinders are each installed at the upper end of the jig mounting plate 831, and their output ends are each connected to both ends of the upper retaining mounting seat 833.

[0031] The slit mechanism 84 comprises two slit parallel movement linear modules 841, two slit lifting linear modules 842, a slit mounting plate 843, and a plurality of slit thermal cutting wires 844, all of which are installed opposite each other at the upper end of the slit base 81, front to back. The two slit parallel movement linear modules 841 are each installed at the upper end of the slit base 81, the plurality of slit fixtures 83 are located between the two slit parallel movement linear modules 841, and the two slit lifting linear modules 842 are each installed at the upper end of the two slit parallel movement linear modules 841. The slit mounting plate 843 is installed above the plurality of slit fixtures 83, and both ends of it are connected to the two slit lifting linear modules 842. The plurality of slit thermal cutting wires 844 are installed below the slit mounting plate 843, spaced apart from left to right, one less than the number of slit fixtures 83, and each is located between two adjacent slit fixtures 83. Multiple slit thermal cutting wires 844 are provided with a first slit block 8441 at one end and a second slit block 8442 at the other end. Since one end and the other end of the slit thermal cutting wires 844 are electrically connected to a control system, the control system can supply power to the slit thermal cutting wires 844, and the slit thermal cutting wires 844 generate heat when energized. In this embodiment, since there are four negative electrode plates and four positive electrode plates on the stacking base 31, three gaps are formed between the electrode plates in the integrated cell. When actually applied, each slit thermal cutting wire 844 corresponds to one gap, and by cutting the separator from the corresponding gap, the integrated cell is cut into multiple individual cells. The first slit block 8441 is installed on one side of the first slit support column 845, near its lower end. A first mounting block 8451 is provided at the top of the first slit support column 845, a second mounting block 8452 is provided on one side of the first mounting block 8451, and the second mounting block 8452 is installed at the lower end of the slit mounting plate 843. The second slit block 8442 is installed on one side of the second slit support column 846, near its lower end.On one side of the second slit support column 846, a slit sliding block 847 is provided near its upper end, and the slit sliding block 847 is slidably mounted on the slit support plate 848. A third mounting block 8481 is provided at the top end of the slit support plate 848, and a fourth mounting block 8482 is provided on one side of the third mounting block 8481, and the fourth mounting block 8482 is installed at the lower end of the slit mounting plate 843. On one side of the slit support plate 848, a slit tension cylinder 849 is provided, located between the second slit support column 846 and a plurality of slit clamps 83, with its output end connected to the slit sliding block 847. The slit tension cylinder 849 drives the slit sliding block 847 to move toward or away from the center of the slit hot-cutting wire 844, i.e., in the front-rear direction. In conjunction with this, the other end of the slit thermal cutting wire 844 can be moved towards or away from the center of the slit thermal cutting wire 844 via the second slit support column 846 and the second slit block 8442. This makes it possible to tension the slit thermal cutting wire 844. In this way, when cutting the separator of the integrated cell, the flatness of the cut surface can be ensured, and the quality of the individual cells is guaranteed. Multiple slit jigs 83 are installed between the first slit support column 845 and the second slit support column 846. Two slit parallel movement linear modules 841 each drive two slit lifting linear modules 842 to move left and right, and in conjunction with this, the slit mounting plate 843 and the multiple slit thermal cutting wires 844 also move left and right. This makes it possible to adjust the left and right positions of the multiple slit thermal cutting wires 844, and the uniformity of the width of the multiple individual cells after slitting is guaranteed. The two slit lifting linear modules 842 drive the slit mounting plate 843 up and down, and in conjunction with this, move the multiple slit heat cutting wires 844 up and down. In this embodiment, a first mounting groove is provided on one side of the first slit support column 845, and a second mounting groove is provided on one side of the second slit support column 846.The first slit block 8441 comprises a first connecting block 84412 installed in a first mounting groove and a second connecting block 84411 installed on one side of the first slit column 845, on the side away from the bottom of the first mounting groove of the first connecting block 84412. The second slit block 8442 comprises a third connecting block 84422 installed in a second mounting groove and a fourth connecting block 84421 installed on one side of the second slit column 846, on the side away from the bottom of the second mounting groove of the third connecting block 84422.

[0032] As shown in Figures 16 and 17, the blanking manipulator 90 comprises a blanking base 91 installed at the top of the frame, a blanking horizontal movement linear module 92, a blanking vertical movement linear module 93, a blanking motor 94, a blanking rotation shaft 95, a gripper cylinder 96, an upper gripper group, and a lower gripper group. The blanking horizontal movement linear module 92 is installed on one side of the blanking base 91 closest to the cell slitting device 80. The blanking vertical movement linear module 93 is installed on one side of the blanking horizontal movement linear module 92 closest to the cell slitting device 80. A blanking mounting seat 921 is provided on one side of the blanking vertical movement linear module 93, and a blanking mounting plate 922 is provided on the side of the blanking mounting seat 921 away from the blanking vertical movement linear module 93. The blanking motor 94 is installed at the top of the blanking mounting plate 922 via a motor seat 941. The blanking rotating shaft 95 passes through a through hole in the blanking mounting plate 922, with one end connected to the output terminal of the blanking motor 94 and the other end connected to the top end of the blanking top plate 951. A blanking bearing is provided in the through hole of the blanking mounting plate 922, and this blanking bearing is fitted around the outer circumference of the blanking rotating shaft 95 to provide rotational support to the blanking rotating shaft 95. A blanking side plate 952 is provided at the bottom end of the blanking top plate 951. The gripper cylinder 96 is installed on one side of the blanking side plate 952 away from the cell slitting device 80. The upper gripper group and the lower gripper group are installed facing each other vertically, located between the blanking side plate 952 and the cell slitting device 80, and below the blanking horizontal movement linear module 92. The upper gripper group comprises an upper gripper mounting seat 971 and a plurality of upper grippers 972. The upper gripper mounting seat 971 is connected to the output end of the gripper cylinder 96. Specifically, an upper gripper connection block 9711 is provided on the side of the upper gripper mounting seat 971 closest to the blanking side plate 952, and one end of the upper gripper connection block 9711 away from the upper gripper mounting seat 971 passes through a through hole 9521 in the blanking side plate 952 and is connected to the output end of the gripper cylinder 96.Multiple upper grippers 972 are installed on the side of the upper gripper mounting seat 971 closest to the cell slitting device 80, spaced apart from front to rear. The lower gripper group comprises a lower gripper mounting seat 981 and multiple lower grippers 982, with the lower gripper mounting seat 981 installed on the side of the blanking side plate 952 closest to the cell slitting device 80, and the multiple lower grippers 982 installed on one side of the lower gripper mounting seat 981 closest to the cell slitting device 80, spaced apart from front to rear, corresponding one-to-one with the multiple upper grippers 972. The second relief grooves 8331 of the multiple slitting fixtures 83 form second relief passages, and the first relief grooves 8321 of the multiple slitting fixtures 83 form first relief passages. Each second relief passage corresponds to one upper gripper 972 and is arranged to allow the corresponding upper gripper 972 to pass through. Each first relief passage corresponds to one lower gripper 982 and is arranged to allow the corresponding lower gripper 982 to pass through. The blanking horizontal movement linear module 92 drives the blanking lifting linear module 93 to move back and forth, and in conjunction with this, the blanking motor 94, blanking rotation shaft 95, gripper cylinder 96, upper gripper group and lower gripper group can also move back and forth. The blanking lifting linear module 93 drives the blanking motor 94, blanking rotation shaft 95, gripper cylinder 96, upper gripper group and lower gripper group to move up and down. The blanking motor 94 drives the blanking rotation shaft 95 to rotate, and in conjunction with this, the gripper cylinder 96, upper gripper group and lower gripper group can also rotate.

[0033] In actual application, after the front and rear edges of the integrated cell are sealed by the first heat-cutting mechanism 38 and the second heat-cutting mechanism 39, first, the replenishment cylinders 318 of the two replenishment assemblies drive the corresponding multiple replenishment blocks 316 downwards until the replenishment blocks 316 contact the bottom of the corresponding relief grooves 3141, at which point the replenishment blocks 316 move away from the corresponding through holes. Then, the blanking parallel movement linear module 92 drives the multiple upper grippers 972 and lower grippers 982 forward to a position corresponding to the stacking base 31. After that, the blanking motor 94 drives the multiple upper grippers 972 and lower grippers 982 to rotate them 180 degrees toward the stacking base 31. After that, the blanking lifting linear module 93 drives the multiple upper grippers 972 and lower grippers 982 to move the multiple lower grippers 982 up and down to correspond to the multiple through holes of the two stacking pallets 312, respectively. Then, the stacking linear module drives the stacking base 31 to move to the right so that the multiple lower grippers 982 are inserted into the multiple through holes of the stacking base 31, and at this time, the multiple upper grippers 972 are positioned above the integrated cell on the stacking base 31. Then, the gripper cylinder 96 drives the multiple upper grippers 972 downward so that the integrated cell on the stacking base 31 can be gripped by the multiple upper grippers 972 and the multiple lower grippers 982. When the stacking linear module drives the stacking base 31 to move to the left back to its initial position, the multiple lower grippers 982 move away from the multiple through holes of the stacking base 31. Then, the blanking motor 94 drives the multiple upper grippers 972 and the multiple lower grippers 982 to rotate 180 degrees and return them to their initial position. Then, the blanking parallel movement linear module 92 drives the multiple upper grippers 972 and the multiple lower grippers 982 to move them backward to a position corresponding to the cell slitting device 80. Then, the two slit lifting linear modules 842 drive the multiple slitting hot cutting wires 844 upward, so that the multiple slitting hot cutting wires 844 are positioned above the multiple slitting fixtures 83.Then, the base linear module 82 drives the slit base 81, the multiple slit fixtures 83, and the slit mechanism 84 to move to the left, so that the integrated cell is positioned at the upper end of the lower retaining mounting seat 832, with the multiple upper grippers 972 each inserted into their corresponding second relief passages, and the multiple lower grippers 982 each inserted into their corresponding first relief passages. Then, the two slit lifting cylinders 834 drive the upper retaining mounting seat 833 downward, pressing the integrated cell against the upper end of the lower retaining mounting seat 832. At this time, each slit heat cutting wire 844 corresponds to one gap between the electrode plates of the integrated cell. Then, the gripper cylinder 96 drives the multiple upper grippers 972 upward, loosening the integrated cell. Then, the base linear module 82 drives the slit base 81, the multiple slit fixtures 83, and the slit mechanism 84 to move to the right back to their initial position. Then, two slit lifting linear modules 842 drive multiple slit thermal cutting wires 844 to move them down to their initial positions. In this process, the slit thermal cutting wires 844 cut the diaphragm at the corresponding gaps in the integrated cell, thereby cutting the integrated cell into multiple individual cells (for example, four). This yields multiple individual cells.

[0034] This invention enables the simultaneous production of multiple individual cells by installing a positive electrode plate unwinding mechanism 11, a positive electrode plate V-angle punching mechanism 12, a positive electrode plate cutting mechanism 13, a positive electrode plate inspection mechanism 14, a positive electrode plate transport line 15, a negative electrode plate unwinding mechanism 21, a negative electrode plate V-angle punching mechanism 22, a negative electrode plate cutting mechanism 23, a negative electrode plate inspection mechanism 24, a negative electrode plate transport line 25, a separator unwinding device 40, a separator 50, a lamination device 30, a positive electrode plate pre-positioning device 60a, a negative electrode plate pre-positioning device 60b, a transport device 70, a cell slitting device 80, and a blanking manipulator 90. This improves manufacturing efficiency and reduces manufacturing costs. Furthermore, the positional accuracy of the positive and negative electrode plates can be ensured by performing positional corrections on multiple positive electrode plates using the positive electrode plate pre-positioning device 60a and on negative electrode plates using the negative electrode plate pre-positioning device 60b. At the same time, by adopting a method in which the integrated cell is ranked in the blanking section first and then slit, the ranking blanking time for cells on the stacking table 31 can be shortened compared to a method in which multiple individual cells are ranked individually from the slitting blanking section on the stacking table 31. In addition, the separator can be cut by the first heat cutting mechanism 38 and the front edge of the integrated cell can be sealed by the second heat cutting mechanism 39 and the rear edge of the integrated cell can be sealed. By adopting a method in which the edges are sealed first and then slit, curling does not occur on the edges on both sides of the separator of the integrated cell during the process of transporting the integrated cell to the cell slitting device 80 by the blanking manipulator 90, thus improving the quality of the integrated cell.

[0035] The present invention further comprises a tape application manipulator 100 installed at the upper end of a frame, a tape application device 110, a thermal pressure feeding manipulator 120, a thermal pressure blanking manipulator 140, a thermal pressure device 130, a QR code tape application device 150, a transfer manipulator 160, a test device 170, and a blanking transport line 180. The tape application manipulator 100 is installed to the right of the blanking manipulator 90, and the tape application device 110 is installed in front of the blanking manipulator 90 and the tape application manipulator 100, and is arranged to apply tape to the front, rear, left, and right sides of individual cells. The blanking manipulator 90 is also used to transport multiple individual cells on the cell slitting device 80 to the tape application manipulator 100 all at once. The tape application manipulator 100 is arranged to sequentially transport multiple individual cells on the blanking manipulator 90 onto the tape application device 110. A thermo-pressure device 130 is installed in front of the tape application device 110, and a thermo-pressure feeding manipulator 120 is installed between the tape application device 110 and the thermo-pressure device 130. A QR code tape application device 150, a test device 170, and a blanking transport line 180 are installed in front of the thermo-pressure device 130 from left to right, and a thermo-pressure blanking manipulator 140 is installed to the left of the thermo-pressure device 130 and the QR code tape application device 150. A transfer manipulator 160 is installed between the QR code tape application device 150 and the test device 170. The thermo-pressure device 130 is positioned to thermo-press individual cells, and the thermo-pressure feeding manipulator 120 is positioned to transport individual cells from the tape application device 110 onto the thermo-pressure device 130. The QR code tape application device 150 is positioned to apply QR code tape to individual cells. The test device 170 is positioned to perform high-pot and thickness tests on individual cells. The blanking transport line 180 is positioned to transport individual cells to the blanking station and perform blanking of the individual cells. The thermal pressure blanking manipulator 140 is positioned to transport individual cells from the thermal pressure device 130 onto the QR code tape application device 150.The transfer manipulator 160 is positioned to transport individual cells from the QR code tape application device 150 onto the test device 170, and then transport the individual cells from the test device 170 onto the blanking transport line 180.

[0036] The present invention does not require any changes to the configuration of the tape application manipulator 100, tape application device 110, thermal pressure feeding manipulator 120, thermal pressure blanking manipulator 140, thermal pressure device 130, QR code tape application device 150, transfer manipulator 160, test device 170, and blanking conveyor line 180; the conventional configuration can be adopted. Furthermore, the number of thermal pressure devices 130 can be set according to the actual situation.

[0037] In actual application, the cell slitting device 80 uses multiple slitting hot-cutting wires 844 to slit an integrated cell into multiple individual cells (for example, four individual cells). Then, two slitting lifting linear modules 842 drive the multiple slitting hot-cutting wires 844 upwards so that they are positioned above multiple slitting fixtures 83. The base linear module 82 then drives the slitting base 81, the multiple slitting fixtures 83, and the slitting mechanism 84 so that the multiple upper grippers 972 of the blanking manipulator 90 are inserted into their respective second escape passages, and the multiple lower grippers 982 are inserted into their respective second escape passages. The multiple upper grippers 972 and the multiple lower grippers 982 are moved to the left so that they are positioned above and below the multiple individual cells, respectively. The gripper cylinder 96 drives the multiple upper grippers 972 downwards so that they are gripped by the multiple upper grippers 972 and the multiple lower grippers 982. Then, the two slit lifting cylinders 834 drive the upper retaining mounting seat 833 upward to its initial position and loosen the multiple individual cells. Then, the base linear module 82 drives the slit base 81, the multiple slit jigs 83 and the slit mechanism 84 to move to the rightward to their initial positions. Then, the two slit lifting linear modules 842 drive the multiple slit thermal wires 844 downward to their initial positions. Then, the blanking parallel movement linear module 92 drives the multiple upper grippers 972, the multiple lower grippers 982 and the multiple individual cells forward to the tape application manipulator 110. Then, the tape application manipulator 100 sequentially transports multiple individual cells on the blanking manipulator 90 to the tape application device 110, where the tape application device 110 sequentially applies tape to the front, rear, left, and right sides of the multiple individual cells. After the tape application to each individual cell by the tape application device 110 is completed, the hot-pressure feeding manipulator 120 transports the individual cells on the tape application device 110 to the hot-pressure device 130, where the hot-pressure device 130 compresses the individual cells.Next, the thermal blanking manipulator 140 transports the individual cells on the thermal press 130 to the QR code tape application device 150, where the QR code tape application device 150 applies QR code tape to the individual cells. Then, the transfer manipulator 160 transports the individual cells from the QR code tape application device 150 to the test device 170, where the test device 170 performs a Hi-Pot test and a thickness test on the individual cells. Finally, the transfer manipulator 160 transports the individual cells from the test device 170 to the blanking transport line 180, where the blanking transport line 180 transports the individual cells to the blanking station.

[0038] This invention enables tape application, heat application, QR code tape application, Hi-Pot testing, and thickness testing of the sides of individual cells after slitting to be performed on the same equipment by installing a tape application manipulator 100, a tape application device 110, a hot-pressure feeding manipulator 120, a hot-pressure blanking manipulator 140, a hot-pressure device 130, a QR code tape application device 150, a transfer manipulator 160, a test device 170, and a blanking conveyor line 180. This eliminates the need to use different equipment, thereby shortening manufacturing time, improving manufacturing efficiency, and reducing manufacturing costs.

[0039] While preferred embodiments of the present invention have been specifically described, the present invention is not limited to these embodiments. Those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of the invention, and all such equivalent modifications or substitutions are also included within the scope of the claims of this application.

Claims

1. A lamination apparatus comprising a frame, a positive electrode plate die-cutting device, a negative electrode plate die-cutting device installed facing the positive electrode plate die-cutting device in the front and rear, a lamination device, a separator unwinding device, and a separator withdrawal device, The positive electrode plate die-cutting device is installed from left to right at the upper end of the frame and comprises a positive electrode plate unwinding mechanism for unwinding a positive electrode plate tape, a positive electrode plate V-angle punching mechanism for performing V-angle punching on both sides of the positive electrode plate tape, a positive electrode plate cutting mechanism for cutting the positive electrode plate tape into positive electrode plates, a positive electrode plate inspection mechanism for performing dimensional inspection and surface defect inspection of the positive electrode plates, and a positive electrode plate transport line for transporting the positive electrode plates. The negative electrode plate die-cutting device is installed from left to right at the upper end of the frame and comprises a negative electrode plate unwinding mechanism for unwinding a negative electrode plate tape, a negative electrode plate V-angle punching mechanism for performing V-angle punching on both sides of the negative electrode plate tape, and the negative electrode plate tape The stacking apparatus comprises a negative electrode plate cutting mechanism for cutting negative electrode plates, a negative electrode plate inspection mechanism for performing dimensional inspection and surface defect inspection of the negative electrode plates, and a negative electrode plate transport line for transporting the negative electrode plates. The stacking apparatus includes a stacking table, the separator unwinding device is positioned to unwind the separators, the separator pulling device is positioned to grip the separators and move them backward to lay the separators on the stacking table, lay the separators on a plurality of negative electrode plates on the stacking table, and lay the separators on a plurality of positive electrode plates on the stacking table. Both the separator unwinding device and the separator pulling device are located in front of and above the stacking apparatus. A positive electrode plate pre-positioning device is slidably mounted on the upper end of the frame and performs positional correction for multiple positive electrode plates, A negative electrode plate pre-positioning device is slidably mounted on the upper end of the frame, facing the positive electrode plate pre-positioning device in the front and rear, and performs positional correction relative to the negative electrode plate. The conveying device is installed at the upper end of the frame, located between the positive electrode plate conveying line and the negative electrode plate conveying line, and is arranged to convey a plurality of positive electrode plates on the positive electrode plate conveying line to the positive electrode plate pre-positioning device, a plurality of negative electrode plates on the negative electrode plate conveying line to the negative electrode plate pre-positioning device, a plurality of positive electrode plates on the positive electrode plate pre-positioning device onto the separator of the stacking table, and a plurality of negative electrode plates on the negative electrode plate pre-positioning device onto the separator of the stacking table, and the stacking table, the positive electrode plate pre-positioning device and the negative electrode plate pre-positioning device are all located on the conveying device, At the upper end of the frame, a cell slitting device is installed to the right of the lamination device and the positive electrode plate pre-positioning device, which slits an integrated cell into multiple individual cells, The frame further comprises a blanking manipulator, which is installed at the upper end of the frame, positioned between the stacking device and the cell slitting device, and transports the integrated cells on the stacking platform to the cell slitting device. The lamination apparatus further comprises a lamination parallel movement linear module installed at the upper end of the frame, a lamination mounting plate installed at the upper end of the lamination parallel movement linear module, and a first heat cutting mechanism installed at the upper end of the lamination mounting plate, and is installed between the positive electrode plate pre-positioning device and the negative electrode plate pre-positioning device, the lamination table is installed at the upper end of the lamination mounting plate, and the first heat cutting mechanism is installed in front of the lamination table, and is a lamination apparatus for laminating multiple plates at once, which cuts the separator.

2. Both the positive electrode plate pre-positioning device and the negative electrode plate pre-positioning device comprise a plurality of pre-positioning bases, a plurality of alignment robots, and a plurality of positioning platforms. The aforementioned multiple pre-positioning bases are arranged in order from left to right, connected to each other, and each is slidably mounted on the upper end of the frame. The aforementioned positioning robot corresponds one-to-one with a plurality of pre-positioning bases, and is installed on the upper end of each corresponding pre-positioning base, and drives and rotates the corresponding positioning platform. The stacking equipment for stacking multiple plates at once, according to claim 1, wherein the multiple positioning platforms correspond one-to-one with multiple alignment robots, and each is installed on the upper end of the corresponding alignment robot.

3. The transport device comprises two transport mounting bases installed opposite each other on the left and right sides, a positive electrode plate external suction cup manipulator, a positive electrode plate internal suction cup manipulator, a negative electrode plate external suction cup manipulator, and a negative electrode plate internal suction cup manipulator. The two transport mounting bases are installed on the upper end of the frame via a transport base, and each is provided with two multi-movable linear motors on sides that are close to each other. The negative electrode plate external suction cup manipulator and the positive electrode plate external suction cup manipulator are installed symmetrically front to back, and are located above the negative electrode plate transport line and above the positive electrode plate transport line, respectively. The negative electrode plate internal suction cup manipulator and the positive electrode plate internal suction cup manipulator are installed symmetrically front to back, and are located between the negative electrode plate external suction cup manipulator and the positive electrode plate external suction cup manipulator. The negative electrode plate external suction cup manipulator, the negative electrode plate internal suction cup manipulator, the positive electrode plate external suction cup manipulator, and the positive electrode plate internal suction cup manipulator are each connected to two multi-movable linear motors. The negative electrode plate prepositioning device is located below the space between the negative electrode plate external suction cup manipulator and the negative electrode plate internal suction cup manipulator. The positive electrode plate pre-positioning device is located below the space between the internal suction cup manipulator and the external suction cup manipulator of the positive electrode plate. The lamination apparatus is located below the space between the negative electrode plate suction cup manipulator and the positive electrode plate suction cup manipulator. The separator unwinding device is installed on the upper ends of two transport mounting tables and is located above the negative electrode plate outer suction cup manipulator and the negative electrode plate inner suction cup manipulator. The lamination apparatus for stacking multiple plates at once according to claim 1, wherein the separator extraction device is located between the negative electrode plate suction cup manipulator and the positive electrode plate suction cup manipulator, and both ends thereof are connected to two multi-movable element linear motors.

4. The negative electrode plate external suction cup manipulator and the positive electrode plate external suction cup manipulator each include two external suction cup lifting linear modules, each connected to two multi-movable linear motors, an external suction cup parallel movement linear module, each connected at both ends to the two external suction cup lifting linear modules, and a plurality of external suction cup assemblies installed on the side of the external suction cup parallel movement linear module away from the stacking device, and arranged at intervals from left to right. The stacking apparatus for stacking multiple plates at once, according to claim 3, wherein the negative electrode plate internal suction cup manipulator and the positive electrode plate internal suction cup manipulator each comprise two internal suction cup lifting linear modules, each connected to two multi-movable linear motors, an internal suction cup parallel movement linear module, both ends of which are connected to the two internal suction cup lifting linear modules, and a plurality of internal suction cup assemblies installed on the side of the internal suction cup parallel movement linear module away from the stacking apparatus and arranged in order from left to right with spacing between them.

5. The lamination apparatus further comprises a second heat-cutting mechanism located behind the lamination platform, the second heat-cutting mechanism being installed at the upper end of the lamination mounting plate, and the first heat-cutting mechanism and the second heat-cutting mechanism each perform front edge sealing and rear edge sealing of the integrated cell. Both the first and second heat-cutting mechanisms comprise two heat-cutting bases installed opposite each other, two heat-cutting mounting plates, two heat-cutting support plates, two heat-cutting lifting cylinders, a separator heat-cutting wire, and a heat-cutting tension cylinder. The two heat-cutting mounting plates are installed on the upper ends of the two heat-cutting bases, the two heat-cutting support plates are slidably installed on the side of the two heat-cutting mounting plates closest to the stacking base, and the two heat-cutting lifting cylinders are installed on the side of the two heat-cutting mounting plates closest to the stacking base, with their output ends facing each other. A lamination apparatus for stacking multiple plates at once, according to claim 1, wherein the separator thermal cutting wire is connected to the upper ends of two thermal cutting support plates, a first thermal cutting block is provided at one end of the separator thermal cutting wire, and a second thermal cutting block is provided at the other end, the first thermal cutting block is installed on the side of one thermal cutting support plate closer to the stacking base, the second thermal cutting block is connected to the output end of a thermal cutting tension cylinder, the thermal cutting tension cylinder is installed on the side of the other thermal cutting support plate closer to the stacking base, and the separator thermal cutting wire is located below the upper end of the stacking base.

6. The cell slitting device comprises a slit base, a base linear module installed at the upper end of the frame, a plurality of slitting fixtures, and a slitting mechanism, wherein the slit base is installed at the upper end of the base linear module, and the plurality of slitting fixtures are installed at intervals from left to right. The slitting jig comprises a jig mounting plate installed at the upper end of the slit base, a lower retaining mounting seat, an upper retaining mounting seat, and two slit lifting cylinders. The lower retaining mounting seat is installed at the upper end of the jig mounting plate, and has a plurality of first relief grooves spaced apart from front to back at its upper end. The upper retaining mounting seat is located above the lower retaining mounting seat and faces the lower retaining mounting seat, and has a plurality of second relief grooves at its lower end that correspond one-to-one with the plurality of first relief grooves. The lower retaining mounting seat is installed between the two slit lifting cylinders, and the two slit lifting cylinders are each installed at the upper end of the jig mounting plate, with their output ends connected to both ends of the upper retaining mounting seat. The slitting mechanism comprises two slit translation linear modules, two slit lifting linear modules, a slit mounting plate, and a plurality of slit heat cutting wires, each of the two slit translation linear modules being installed opposite to the upper end of the slit base, and the plurality of slit jigs being positioned between the two slit translation linear modules. Two slit lifting linear modules are installed at the upper ends of two slit translating linear modules, the slit mounting plate is installed above a plurality of slit jigs, and both ends of the plate are connected to two slit lifting linear modules, the plurality of slit thermal cutting wires are installed below the slit mounting plate from left to right at intervals, one less than the number of slit jigs, each positioned between two adjacent slit jigs, with a first slit block at one end and a second slit block at the other end, the first slit block is installed near its lower end on one side of the first slit support column, and the upper end of the first slit support column A stacking apparatus for stacking multiple plates at once, according to claim 1, wherein a slit mounting plate is installed at the lower end of the slit mounting plate, a second slit block is installed on one side of the second slit support near its lower end, a slit sliding block is installed on one side of the second slit support near its upper end, the slit sliding block is slidably installed on one side of the slit support plate, the upper end of the slit support plate is installed at the lower end of the slit mounting plate, a slit tension cylinder is installed on one side of the slit support plate, the output end of the slit tension cylinder is connected to the slit sliding block, and the multiple slit jigs are located between the first slit support and the second slit support.

7. The blanking manipulator comprises a blanking base installed at the top end of the frame, a blanking horizontal movement linear module, a blanking vertical movement linear module, a blanking motor, a blanking rotation shaft, a gripper cylinder, an upper gripper group, and a lower gripper group. The blanking horizontal movement linear module is installed on one side of the blanking base, close to the cell slitting device. The blanking lifting linear module is installed on one side of the blanking horizontal movement linear module that is close to the cell slitting device, and a blanking mounting base is provided on that side, and a blanking mounting plate is provided on the side of the blanking mounting base that is away from the blanking lifting linear module. The blanking motor is installed at the top of the blanking mounting plate. The blanking rotation shaft passes through a through hole in the blanking mounting plate, one end of which is connected to the output terminal of the blanking motor, and the other end of which is connected to the top edge of the blanking top plate, and a blanking side plate is provided at the bottom edge of the blanking top plate. The gripper cylinder is installed on one side of the blanking side plate away from the cell slitting device. The upper gripper group and the lower gripper group are installed facing each other vertically, located between the blanking side plate and the cell slitting device, and located below the blanking horizontal movement linear module, the upper gripper group comprises an upper gripper mounting seat and a plurality of upper grippers, the upper gripper mounting seat is connected to the output end of the gripper cylinder, the plurality of upper grippers are installed at intervals from front to back on the side of the upper gripper mounting seat closer to the cell slitting device, the lower gripper group comprises a lower gripper mounting seat and a plurality of lower grippers, the The lower gripper mounting base is installed on the side of the blanking side plate closest to the cell slitting device, the plurality of lower grippers are installed at intervals from front to back on one side of the lower gripper mounting base closest to the cell slitting device, and correspond one-to-one with the plurality of upper grippers, the first relief grooves of the plurality of slitting jigs form a first relief passage, each lower gripper corresponds to one of the first relief passages, the second relief grooves of the plurality of slitting jigs form a second relief passage, each upper gripper corresponds to one of the second relief passages, as described in claim 6, a lamination apparatus for stacking multiple plates at once.

8. Both the positive electrode plate V-angle punching mechanism and the negative electrode plate V-angle punching mechanism comprise a punching mounting frame installed at the upper end of the frame, a punching die positioned inside the punching mounting frame, and a punching lifting drive mechanism. The punching die comprises an upper punching mold and a lower punching mold, which are installed opposite each other vertically. The lower punching mold is installed at the bottom of the mounting frame and connected to the upper punching mold by an extendable rod. Two V-shaped cutters are provided on the front and rear sides of the lower end of the upper punching mold, and two V-shaped grooves corresponding to the two V-shaped cutters are provided at the upper end of the lower punching mold, with two V-shaped grooves fitting into each other. The punching lifting drive mechanism comprises a punching reducer, a punching motor, a punching synchronous belt assembly, a punching rotating shaft, and a punching connecting rod. A punching mounting seat is provided at the upper end of the punching mounting frame. The punching motor is installed in the punching reducer, with its output end connected to the input end of the punching reducer. The punching reducer is installed at one end of the punching mounting seat. The punching rotating shaft has one end connected to the output end of the punching reducer via the punching synchronous belt assembly, and the other end is rotatably installed in a through hole in the punching mounting seat. A lamination apparatus for stacking multiple plates at once, according to claim 1, wherein the roller follower is connected, the center of which is located on one side of the axis of the punching rotation shaft and fits into a rectangular hole in the punching connecting plate, the punching mounting plate is slidably installed on one side of the punching mounting seat, the punching mounting plate is located to the left of the punching mounting seat, the punching connecting plate is installed on the side of the punching mounting plate closer to the punching mounting seat, and the punching connecting rod has one end installed on the lower end of the punching mounting plate and the other end connected to the upper end of the punching upper formwork through a through hole in the upper end of the punching mounting frame.

9. The stacking platform comprises a stacking base installed at the upper end of the stacking mounting plate, two stacking pallets installed side by side front to back and connected to each other, a stacking bottom plate, and two replenishment assemblies. Two stacking support plates are provided at the lower end of the stacking pallets, spaced apart front to back, and both of these stacking support plates are installed at the upper end of the stacking bottom plate. Two stacking connecting plates are provided at the lower end of the stacking bottom plate, and these two stacking connecting plates are each connected to the stacking connecting columns at the upper end of the stacking base. The stacking support pallets are provided with multiple through holes that penetrate their upper and lower ends and are installed at intervals from left to right, corresponding to multiple lower grippers of the blanking manipulator. The two replenishment assemblies are two stacking assemblies. A stacking apparatus for stacking multiple plates at once, according to claim 7, wherein each stack pallet is corresponding to a replenishment assembly comprising a plurality of replenishment blocks, a replenishment mounting plate, and two replenishment cylinders, the plurality of replenishment blocks correspond one-to-one with and fit into a plurality of through holes in the corresponding stack pallet, the upper end of the stack support plate is provided with a plurality of relief grooves corresponding to and communicating with the plurality of through holes, the replenishment mounting plate is located between two stack support plates of the corresponding stack pallet and between the stack bottom plate and the corresponding stack pallet, the lower ends of the plurality of replenishment blocks are each connected to the upper end of the replenishment mounting plate, and the two replenishment cylinders are each installed at the lower end of the stack bottom plate, their output ends connected to the lower end of the stack mounting plate through through holes in the stack bottom plate.

10. The system further comprises a tape application manipulator, a tape application device, a thermal pressure feeding manipulator, a thermal pressure blanking manipulator, a thermal pressure device, a QR code tape application device, a transfer manipulator, a test device, and a blanking transfer line, all of which are installed at the upper end of the frame. The tape application manipulator is installed to the right of the blanking manipulator, the tape application device is installed in front of the blanking manipulator and the tape application manipulator, and is arranged to apply tape to the front, rear, left, and right sides of individual cells, the blanking manipulator is also used to transport multiple individual cells on the cell slitting device to the tape application manipulator all at once, the tape application manipulator is arranged to transport multiple individual cells on the blanking manipulator sequentially onto the tape application device, the thermo-pressure device is installed in front of the tape application device, the thermo-pressure feeding manipulator is installed between the tape application device and the thermo-pressure device, the QR code tape application device, test device and blanking transport line are installed in front of the thermo-pressure device from left to right, the thermo-pressure blanking manipulator is installed to the left of the thermo-pressure device and the QR code tape application device, and the transfer manipulator is installed between the QR code tape application device and the test device. The lamination equipment for laminating multiple plates at once, according to claim 1, wherein the heat press device is arranged to heat press individual cells, the heat press feeding manipulator is arranged to transport individual cells on a tape application device onto the heat press device, the QR code tape application device is arranged to apply QR code tape to individual cells, the test device is arranged to perform a high pot test and a thickness test on individual cells, the blanking transport line is arranged to transport individual cells to the blanking station, the heat press blanking manipulator is arranged to transport individual cells on the heat press device onto the QR code tape application device, the transfer manipulator is arranged to transport individual cells on the QR code tape application device onto the test device, and the individual cells on the test device onto the blanking transport line.

Images