Positive electrode sheet wrapping, stacking, finished product conveying coordinated process and sheet wrapping and stacking machine thereof

Abstract

The present application relates to a kind of positive sheet packing, laminated sheet, finished product conveying collaborative process, comprising the following steps: step 1: in the process of plate conveying mechanism, positive sheet feeding, positive sheet bag packing, positive sheet stacking after packing are completed in plate conveying process;Step 2: after packing plate falls, negative sheet adsorption transfer mechanism is transferred to the plate group stacking mechanism above negative sheet, negative sheet falls to packing plate, and the staggered stacking of negative sheet and packing plate is realized by circulation work, and plate group is formed;Step 3: finished product output mechanism realizes the turnover of plate group and plate group is transported to next process vertically.This application is small in overall volume, and occupies less space, and is easy to place;High degree of automation, realize automatic feeding, automatic feeding, automatic packing, automatic stacking into plate group, automatic discharge of fully automated operation.

Description

Technical Field

[0001] This invention relates to the field of mechanical automation technology, and more particularly to the coordinated process of positive electrode wafer wrapping, stacking, and finished product conveying, as well as the wrapping and stacking machine thereof. Background Technology

[0002] A battery packing machine is an automated machine specifically designed for packing batteries with corresponding electrode groups. It is mainly used in the battery industry to automatically pack the appropriate electrode groups for batteries of different specifications.

[0003] Existing battery electrode packing methods mainly involve manual electrode packing or sheet packing machines. In 2015, the applicant developed a fully automatic parallel feeding battery sheet packing machine and obtained an invention patent (publication number CN104733690B). Its technical solution mainly includes: a paper feeding mechanism, a finished product conveying mechanism, a parallel raw material conveying and feeding mechanism, a suction mechanism, an electrode packing lifting mechanism, and a pushing mechanism. The paper feeding mechanism includes a paper feeding tray, a raw material paper feeding transmission mechanism, a paper guide groove, a paper feeding lifting cylinder, a paper feeding motor, an automatic fixed-length paper feeding mechanism, and a paper cutting mechanism. The paper feeding tray is equipped with separator paper. It can automatically pack the required number of electrode plates for batteries of different specifications. The machine itself operates stably, producing neat and clean finished cells with no damage to the glass fiber separator paper. The machine features low loss, high environmental friendliness, negative pressure operation, automatic alarm capability for defective products, real-time monitoring during operation, and comprehensive fault monitoring with fault reporting. However, the raw materials required for the current packaging are different. The packaging material used this time is fiberglass release paper (industry name: PE film), which is highly tough, difficult to cut, and the packaging method requires a sewn-bag style. Not only must the electrode be folded in half to be placed in the center, but the two sides of the release paper must also be pressed together and sewn into a bag. Earlier equipment used release paper (industry name: AGM), which is softer and more cottony, tear-resistant, and easy to cut; simply folding it in half to place the electrode in the center was sufficient. Therefore, to solve the above problems, it is necessary to develop a packaging equipment adapted to this production process. Summary of the Invention

[0004] To address the aforementioned issues, this invention provides a collaborative process for positive electrode sheet wrapping, stacking, and finished product conveying, along with its wrapping and stacking machine. The positive electrode sheet is wrapped using fiberglass separator paper in a sewn-bag manner. After wrapping and output, the sheets are automatically stacked. The finished product output changes from a horizontal to a 90-degree vertical orientation, facilitating the integration of AI-powered robotic arms into the production line. This transforms the traditional wrapping, stacking, and finished product conveying processes, improving the yield and production efficiency of the finished product through synergistic improvements.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a coordinated process for positive electrode sheet wrapping, stacking, and finished product conveying, comprising the following steps:

[0006] Step 1: Wrapping the positive electrode sheet

[0007] During the electrode plate conveying process, the positive electrode sheet feeding, positive electrode sheet bagging, and positive electrode sheet stacking are completed.

[0008] 2.1 The positive electrode sheet is transferred to the electrode plate conveying mechanism via the positive electrode sheet adsorption and transfer mechanism;

[0009] 2.2 The positive electrode sheet is continuously conveyed forward along the electrode plate conveying mechanism and the positive electrode sheet is bagged and wrapped in the paper cutting and wrapping mechanism to form a wrapped electrode plate;

[0010] 2.2 The packaged electrode plates are continuously conveyed forward along the electrode plate conveying mechanism and fall freely onto the electrode plate stacking mechanism;

[0011] Step 2: Stacking pieces

[0012] After the foil plate falls off, the negative electrode adsorption and transfer mechanism moves the negative electrode to the plate stacking mechanism, and the negative electrode falls onto the foil plate. The cycle works to achieve the staggered stacking of the negative electrode and the foil plate to form a plate group.

[0013] Step 3: Finished Product Conveying

[0014] The finished product output mechanism enables the flipping of the electrode group and the vertical transport of the electrode group to the next process.

[0015] Preferably, in step 2.2, the positive electrode bag packaging requirement is a sewn bag type, which uses glass fiber separator paper folded in the middle to wrap the electrode sheet in the middle, and at the same time, the glass fiber separator paper is pressed and sewn together on both sides in the feeding direction to form a bag.

[0016] A fully automated battery packing and stacking machine that achieves coordinated processes of positive electrode packing, stacking, and finished product conveying includes a frame. The frame is equipped with an electrode plate conveying mechanism for conveying positive electrode plates. On one side of the electrode plate conveying mechanism, there is a positive electrode plate adsorption and transfer mechanism for transferring positive electrode plates to the electrode plate conveying mechanism. The electrode plate conveying mechanism is equipped with a paper cutting and packing mechanism for bagging positive electrode plates. The front and rear ends of the electrode plate conveying mechanism are respectively equipped with a paper feeding mechanism and an electrode plate stacking mechanism. A finished product output mechanism is located behind the electrode plate stacking mechanism. The paper feeding mechanism and the paper cutting and packing mechanism are connected by a separating paper. On one side of the electrode plate stacking mechanism, there is a negative electrode plate adsorption and transfer mechanism for transferring negative electrode plates to the electrode plate stacking mechanism.

[0017] Preferably, the electrode conveying mechanism includes a first chain conveying component, a positioning detection photoelectric component, an electrode vacancy detection photoelectric component, a dual-plate detection component, and a conveying motor. The conveying motor is connected to the first chain conveying component for transmission. The positioning detection photoelectric component, the electrode vacancy detection photoelectric component, and the dual-plate detection component are sequentially arranged on the first conveying component.

[0018] Preferably, the paper feeding mechanism includes a paper feeding tray, a paper feeding drive component, and paper feeding crossbeams. The paper feeding tray is rotatably mounted on the paper feeding frame. The paper feeding drive component is mounted on the paper feeding frame and is connected to the paper feeding tray in a transmission manner. Several paper feeding crossbeams are mounted on the paper feeding frame.

[0019] Preferably, the paper cutting and packaging mechanism includes a paper feeding frame, a paper feeding motor, a paper guide frame, a paper feeding wheel, a cutter cylinder, and a separator paper pressing component. The top of the paper feeding frame is provided with a transmission roller group, the paper guide frame is located below the transmission roller group and has a guide groove inside, at least one paper feeding wheel is located below the paper feeding guide frame, the paper feeding motor is connected to the paper feeding wheel, the cutter cylinder is located below the paper feeding wheel and is connected to a paper cutter, and the separator paper pressing component is located behind the electrode plate conveying mechanism and is on the same axis as the electrode plate conveying mechanism.

[0020] Preferably, the release paper pressing component includes a drive belt, an upper rotating shaft, a lower rotating shaft, drive wheels, pressing gears, and a pressing motor. The drive belt rotates cyclically through two lower rotating shafts. The upper rotating shaft is located above the lower rotating shaft closest to the electrode plate conveying mechanism. The upper rotating shaft and the lower rotating shaft are each provided with a plurality of drive wheels. A plurality of pressing gears are respectively located at both ends of the upper rotating shaft and the lower rotating shaft, and the pressing gears on the upper rotating shaft and the lower rotating shaft mesh with each other.

[0021] Preferably, the positive electrode adsorption and transfer mechanism includes a positive electrode transfer mechanism 4 and a forward suction mechanism. The positive electrode transfer mechanism 4 includes a motor drive component, a sensor, a second chain conveyor component, and a positive electrode top-loading cylinder. The motor drive component drives the second chain conveyor component to rotate. The positive electrode top-loading cylinder and the sensor are located at one end of the second chain conveyor component near the electrode plate conveyor mechanism. The positive electrode top-loading cylinder is located below the second chain conveyor component. The forward suction mechanism includes a transverse cylinder, a guide shaft, upper and lower suction cylinders, a suction cup assembly, a vacuum generator, a suction sensor, and a pressure regulating device. The transverse cylinder is driven by a guide block, which drives the guide block to move directionally on the guide shaft. The upper and lower suction cylinders are located below the guide block. The suction cup assembly is connected below the upper and lower suction cylinders. The vacuum generator and the pressure regulating device are respectively connected to the suction cup assembly. The suction sensor is located on one side of the suction cup assembly.

[0022] Preferably, the negative electrode adsorption and transfer mechanism includes a negative electrode transfer mechanism and a forward suction mechanism. The negative electrode transfer mechanism includes a third chain conveying component, a material support weight block, a top material upper limit detection component, a negative electrode top material cylinder, a drive motor, and a negative electrode positioning stop. The drive motor is connected to the third chain conveying component. A side plate is provided on the side of the third chain conveying component. The material support weight block is located on the side plate. The top material upper limit detection component, the electrode positioning stop, and the top material cylinder are located at the same end of the third chain conveying component. The top material cylinder is located below the third chain conveying component.

[0023] Preferably, the electrode group stacking mechanism includes a pushing cylinder, a connecting plate, an electrode group receiving box, a lifting seat, a push rod lifting cylinder, an electrode group push rod, a lifting guide shaft, and a guide sleeve. The electrode group receiving box is fixedly installed in the frame body, and its bottom surface is provided with two parallel guide grooves. The pushing cylinder is located below the electrode group receiving box and is connected to the connecting plate. Several lifting guide shafts are connected below the connecting plate. The lifting guide shaft is connected to a lifting seat that can be lifted and moved through the guide sleeve. Two electrode group push rods are located on the upper surface of the lifting seat and can pass through the connecting plate and move up and down within the two guide grooves. The push rod lifting cylinder is located on one of the lifting guide shafts and is drivenly connected to the bushing of the lifting guide shaft.

[0024] Preferably, the finished product output mechanism includes a plate group support plate, a plate group backing plate, a width correction mechanism, an output motor, a safety cover, a plate group positioning photoelectric sensor, and a fourth chain conveyor component. The output motor is connected to the fourth chain conveyor component. The plate group support plate and the plate group backing plate are vertically spaced on the fourth chain conveyor component. The plate group support plate and the plate group backing plate are staggered. The plate group positioning photoelectric sensor and the width correction mechanism are located beside the fourth chain conveyor component. The safety cover is located at the end of the first chain conveyor component away from the plate group stacking mechanism.

[0025] The beneficial effects of this invention are as follows: The invention has a small overall size, occupies little space, and is easy to place; it has a high degree of automation, achieving fully automated operation of automatic feeding, automatic material handling, automatic wrapping, automatic stacking into electrode groups, and automatic discharge. It can automatically deliver the required length of glass fiber separator paper for electrode groups of different battery specifications, and can automatically wrap the required number of electrode groups for different battery specifications, reducing manual operation; it adopts a positive suction method for electrode transfer, which has strong adsorption capacity and stable transfer; it adopts a free-fall stacking method, which is more stable, will not damage the electrode groups, reduces the electrode scrap rate, and prevents misalignment; when delivering the electrode groups, it also corrects the width of the electrode groups, making the electrode groups neat and the finished product of high quality. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the process flow of the present invention.

[0027] Figure 2 This refers to the equipment structure used in the process of this invention.

[0028] Figure 3 This is a three-dimensional structural diagram of the paper feeding mechanism.

[0029] Figure 4 This is a three-dimensional structural diagram of the paper cutting and wrapping mechanism.

[0030] Figure 5 This is a three-dimensional structural diagram of the positive electrode adsorption and transfer mechanism.

[0031] Figure 6 This is a schematic diagram of the forward feeding mechanism.

[0032] Figure 7 This is a three-dimensional structural diagram of the electrode plate conveying mechanism.

[0033] Figure 8 This is a three-dimensional structural diagram of the negative electrode adsorption and transfer mechanism.

[0034] Figure 9 This is a three-dimensional structural diagram of the electrode plate stacking mechanism.

[0035] Figure 10 This is a three-dimensional structural diagram of the finished product output mechanism.

[0036] Explanation of reference numerals in the attached figures:

[0037] 1. Frame;

[0038] 2. Paper feeding mechanism; 21. Paper feeding tray; 22. Paper feeding drive component; 23. Paper feeding crossbeam; 24. Paper feeding frame;

[0039] 3. Paper cutting and wrapping mechanism; 31. Paper feeding frame; 32. Drive roller group; 33. Paper drop guide frame; 34. Paper feeding roller; 35. Paper feeding motor; 36. Cutter cylinder; 37. Release paper pressing component; 371. Drive belt; 372. Upper rotating shaft; 373. Lower rotating shaft; 374. Drive wheel; 375. Pressing gear; 376. Pressing motor;

[0040] 4. Positive electrode sheet transfer mechanism; 41. Motor drive component; 42. Sensor; 43. Second chain conveyor component; 44. Positive electrode sheet top-loading cylinder;

[0041] 5. Forward suction mechanism; 51. Lateral movement cylinder; 52. Guide shaft; 53. Guide block; 54. Upper and lower suction cylinders; 55. Suction cup assembly; 56. Vacuum generator; 57. Suction sensor; 58. Pressure regulating device;

[0042] 6. Electrode plate conveying mechanism; 61. First chain conveying component; 62. Positioning detection photoelectric component; 63. Electrode empty space detection photoelectric component; 64. Dual-plate detection component; 65. Conveyor motor;

[0043] 7. Negative electrode sheet transfer mechanism; 71. Third chain conveyor component; 72. Material support weight block; 73. Top material upper limit detection component; 74. Negative electrode sheet top material cylinder; 75. Drive motor; 76. Negative electrode sheet positioning stop; 77. Side plate;

[0044] 8. Electrode plate stacking mechanism; 81. Pushing cylinder; 82. Connecting plate; 83. Electrode plate receiving box; 84. Lifting seat; 85. Push rod lifting cylinder; 86. Plate group push rod; 87. Lifting guide shaft; 88. Guide sleeve;

[0045] 9. Finished product output mechanism; 91. Plate group support plate; 92. Plate group back support plate; 93. Width correction mechanism; 94. Output motor; 95. Safety guard; 96. Plate group positioning photoelectric device; 97. Fourth chain conveyor component. Detailed Implementation

[0046] Please see Figure 1-10 As shown, the present invention relates to a coordinated process for positive electrode wafer wrapping, stacking, and finished product conveying, comprising the following steps:

[0047] Step 1: Wrapping the positive electrode sheet

[0048] During the electrode plate conveying process, the positive electrode sheet feeding, positive electrode sheet bagging, and positive electrode sheet stacking are completed.

[0049] 2.1 The positive electrode sheet is transferred to the electrode plate conveying mechanism via the positive electrode sheet adsorption and transfer mechanism;

[0050] 2.2 The positive electrode sheet is continuously conveyed forward along the electrode plate conveying mechanism and bagged in the paper cutting and wrapping mechanism to form a wrapped electrode plate. The positive electrode sheet bagging requirement is a sewn bag type, using glass fiber separator paper folded in the middle to wrap the electrode sheet in the middle, and at the same time, the glass fiber separator paper is pressed and sewn together on both sides in the feeding direction to form a bag.

[0051] 2.2 The packaged electrode plates are continuously conveyed forward along the electrode plate conveying mechanism and fall freely onto the electrode plate stacking mechanism;

[0052] Step 2: Stacking pieces

[0053] After the foil plate falls off, the negative electrode adsorption and transfer mechanism moves the negative electrode to the plate stacking mechanism, and the negative electrode falls onto the foil plate. The cycle works to achieve the staggered stacking of the negative electrode and the foil plate to form a plate group.

[0054] Step 3: Finished Product Conveying

[0055] The finished product output mechanism enables the flipping of the electrode plate group and the vertical transport of the finished product to the next process.

[0056] A fully automated battery packing and stacking machine that achieves coordinated processes of positive electrode packing, stacking, and finished product conveying includes a frame 1. The frame 1 is equipped with an electrode plate conveying mechanism 6, which can be a belt, chain, or other method. A paper feeding mechanism 2 and an electrode plate stacking mechanism 8 are respectively located before and after the electrode plate conveying mechanism 6. A positive electrode plate adsorption and transfer mechanism is located on one side of the electrode plate conveying mechanism 6, and a negative electrode plate adsorption and transfer mechanism is located on one side of the electrode plate stacking mechanism 8. A finished product output mechanism 9 is located behind the electrode plate stacking mechanism 8. A paper cutting and packing mechanism 3 is located on the electrode plate conveying mechanism between the electrode plate conveying mechanism 6 and the electrode plate stacking mechanism 8. A roll of glass fiber separator paper is placed in the paper feeding mechanism 2, with its free end vertically positioned in the paper cutting and packing mechanism 3. The paper feeding mechanism 2, electrode plate conveying mechanism 6, paper cutting and packing mechanism 3, and electrode plate stacking mechanism 8 are all arranged on the same horizontal line. The positive electrode plate adsorption and transfer mechanism and the negative electrode plate adsorption and transfer mechanism are respectively arranged parallel to the electrode plate conveying mechanism 6.

[0057] The rolled glass fiber PE release paper is manually placed on the paper feeding mechanism 2 and pulled into the paper cutting and wrapping mechanism 3, making the glass fiber PE release paper perpendicular to the conveying direction of the electrode conveying mechanism 6. The positive electrode assembly and the negative electrode assembly are placed on the positive electrode adsorption and transfer mechanism and the negative electrode adsorption and transfer mechanism, respectively. The positive electrode adsorption and transfer mechanism adsorbs and transfers the positive electrode to the electrode conveying mechanism 6. The positive electrode moves with the electrode conveying mechanism 6 into the paper cutting and wrapping mechanism 3. The paper cutting and wrapping mechanism 3 delivers the release paper of a specified length and cuts it. The positive electrode adsorption and transfer mechanism transfers the positive electrode to the electrode conveying mechanism 6. The positive electrode is then conveyed to the paper cutting and wrapping mechanism 3 via the electrode conveying mechanism 6. The positive electrode passes through the release paper pressing component 37. The insulating paper is bagged and wrapped on the upper and lower surfaces of the positive electrode to form a wrapped electrode plate. The wrapped electrode plate continues to be conveyed by the electrode plate conveying mechanism 6 and falls directly into the electrode plate group stacking mechanism 8 at the end of the electrode plate conveying mechanism 6. The negative electrode adsorption and transfer mechanism transfers the negative electrode plate to the electrode plate group stacking mechanism 8 after the wrapped electrode plate falls. The cycle continues, and the positive and negative electrode plates are stacked alternately until the required number of positive and negative plates for an electrode plate group are obtained. The electrode plate group push rod 86 pushes the prepared electrode plate group to the finished product output mechanism 9. The finished product output mechanism 9 flips the electrode plate group from horizontal to vertical placement and then conveys it to the next process. The vertical placement conveying method takes up less space, thus making the whole machine smaller and facilitating the operation of the next process.

[0058] In this invention, the positive electrode sheet is fed parallel to the electrode plate conveying mechanism 6. The paper feeding mechanism 2, the electrode plate conveying mechanism 6, and the paper cutting and wrapping mechanism 3 move in the same direction, enabling the entire production process to proceed continuously without interruption. During the conveying process, the positive electrode sheet feeding, positive electrode sheet wrapping, and the staggered stacking of the wrapped electrode plate and negative electrode sheet are completed, thereby improving production efficiency. The positive electrode sheet enters the paper cutting and wrapping mechanism 3 while being conveyed along the electrode plate conveying mechanism 6, realizing automatic wrapping of the positive electrode sheet. The electrode plate conveying mechanism 6 continues to convey the wrapped positive electrode sheet forward, and it is directly stacked by free fall at the electrode plate stacking mechanism 8 (at the end of the electrode plate conveying mechanism 6), effectively preventing contamination and damage to the separator paper, thus improving the quality of the battery product. Then, the negative electrode sheet adsorption and transfer mechanism on the same side as the electrode plate stacking mechanism 8 transfers the negative electrode sheet to the electrode plate stacking mechanism 8 after the wrapped electrode plate is stacked, and it is stacked alternately with the wrapped electrode plate. The stacking process is continuous and does not require waiting, improving the production efficiency of the wrapping machine.

[0059] This invention can automatically feed out the required length of glass fiber separator paper for battery electrode groups of different specifications, and can automatically wrap the electrode groups of different specifications of batteries with the required number of plates. The machine itself operates stably, the finished products are neat and clean, the glass fiber separator paper is transported without damage, the machine has low loss, high environmental protection, negative pressure operation, automatic alarm capability for defective products, real-time monitoring during the operation of the whole machine, and comprehensive fault monitoring and fault prompts.

[0060] Furthermore, such as Figure 2 As shown, the paper feeding mechanism 2 includes a paper feeding tray 21, a paper feeding drive component 22, and a paper feeding crossbeam 23. The paper feeding tray 21 is rotatably mounted on the paper feeding frame. The paper feeding drive component 22 is mounted on the paper feeding frame and is connected to the paper feeding tray 21 in a transmission manner. Several paper feeding crossbeams 23 are mounted on the paper feeding frame. The paper strip is placed on the paper feeding tray 21. The paper feeding drive component 22 drives the paper feeding tray 21 to rotate. The paper strip is pulled around the paper feeding crossbeam 23 to the paper cutting and wrapping mechanism 3.

[0061] Furthermore, such as Figure 3As shown, the paper cutting and wrapping mechanism 3 includes a paper feeding frame 31, a paper feeding motor 35, a paper guide frame 33, paper feeding rollers 34, a cutter cylinder 36, and a release paper pressing component 37. The top of the paper feeding frame 31 is equipped with a transmission roller group 32 for guiding the release paper strip downwards. The paper guide frame 33 is located below the transmission roller group 32 and has a guide groove inside to guide the release paper strip and prevent deviation. At least one paper feeding roller 34 is located below the paper guide frame 33. The paper feeding motor... The paper feeding motor 35 is connected to the paper feeding wheel 34, which drives the paper feeding wheel 34 to rotate. The paper feeding wheel 34 moves the separator paper belt downward. The cutter cylinder 36 is located below the paper feeding wheel 34 and is connected to a paper cutter. The paper cutter uses a scissor-type cutting method. The separator paper pressing component 37 is located behind the electrode plate conveying mechanism 6 and is on the same axis as the electrode plate conveying mechanism 6. It includes a drive belt 371, an upper rotating shaft 372, a lower rotating shaft 373, a drive wheel 374, a pressing gear 375, and a pressing mechanism. The motor 376, the transmission belt 371 rotates cyclically through two lower rotating shafts 373, the upper rotating shaft 372 is located above the lower rotating shaft 373 near the electrode plate conveying mechanism 6, the upper rotating shaft 372 and the lower rotating shaft 373 are respectively provided with a plurality of transmission wheels 374, and a plurality of pressing gears 375 are respectively provided at both ends of the upper rotating shaft 372 and the lower rotating shaft 373, and the pressing gears 375 of the upper rotating shaft 372 and the lower rotating shaft 373 respectively mesh with each other, and the release paper tape moves down one After the specified length is reached, the cutting cylinder 36 drives the paper cutter to cut the insulating paper from the paper strip. When the positive electrode sheet enters the insulating paper pressing component 37 from the electrode plate conveying mechanism 6, the insulating paper is folded in half and wrapped in a bag to cover the upper and lower sides of the positive electrode sheet. The pressing motor 376 drives the lower rotating shaft 373 to rotate, thereby driving the transmission belt 371 to rotate, and then driving the positive electrode sheet to move. During this process, the transmission wheel 374 flattens the insulating paper on the upper and lower sides of the positive electrode sheet, and the pressing gear 375 fixes the insulating paper tightly on the positive electrode sheet.

[0062] Furthermore, such as Figure 5 As shown, the forward suction mechanism 5 includes a transverse cylinder 51, a guide shaft 52, upper and lower suction cylinders 54, a suction cup assembly 55, a vacuum generator 56, a suction sensor 57, and a pressure regulating device 58. The transverse cylinder 51 is driven by a gas collecting conversion block 53, which moves directionally on the guide shaft 52. The upper and lower suction cylinders 54 are located below the gas collecting conversion block 53, and the suction cup assembly 55 is connected below the upper and lower suction cylinders. The vacuum generator 56 and the gas collecting conversion block 53 are respectively connected to the suction cup assembly 55. The suction sensor 57 is located on one side of the suction cup assembly 55 and is used to detect whether the suction cup assembly 55 has picked up an electrode sheet. The upper and lower suction cylinders 54 drive the suction cup assembly 55 to move up and down to pick up positive or negative electrode sheets. The gas collecting conversion block 53, driven by the transverse cylinder 51, moves the positive or negative electrode sheet to the next mechanism.

[0063] Furthermore, such as Figure 6 As shown, the electrode conveying mechanism 6 includes a first chain conveying component 61, a positioning detection photoelectric component 62, an electrode empty space detection photoelectric component 63, a double-plate detection component 64, and a conveying motor 65. The conveying motor 65 is connected to the first chain conveying component 61. The positioning detection photoelectric component 62, the electrode empty space detection photoelectric component 63, and the double-plate detection component 64 are sequentially arranged on the first conveying component. The first chain conveying component 61 drives the positive electrode to pass through the positioning detection photoelectric component 62, the electrode empty space detection photoelectric component 63, and the double-plate detection component 64 in sequence. The positioning detection photoelectric component 62 is used to detect whether the positive electrode is stably placed on the first chain conveying component 61. The electrode empty space detection photoelectric component 63 is used to detect whether the first chain conveying component 61 is running unloaded. The double-plate detection component 64 is used to detect whether there is an overlap of two electrodes.

[0064] Furthermore, the positive electrode adsorption and transfer mechanism includes a positive electrode transfer mechanism 4 and a forward suction mechanism 5.

[0065] like Figure 4 As shown, the positive electrode transfer mechanism 4 includes a motor drive component 41, a sensor 42, a second chain conveyor component 43, and a positive electrode lifting cylinder 44. The motor drive component 41 drives the second chain conveyor component 43 to rotate. The positive electrode lifting cylinder 44 and the sensor 42 are located at one end of the second chain conveyor component 43, generally at the end close to the electrode plate conveying mechanism 6. The positive electrode lifting cylinder 44 is located below the second chain conveyor component 43. When the sensor 42 detects that the remaining quantity of a group of positive electrode sheets is small and it is not convenient for the forward suction mechanism 5 to pick them up, the positive electrode lifting cylinder 44 lifts the group of positive electrode sheets upwards for easy operation.

[0066] Furthermore, the negative electrode adsorption and transfer mechanism includes a negative electrode transfer mechanism 7 and a forward suction mechanism 5. The negative electrode adsorption and transfer mechanism adopts the same forward suction mechanism 5 as the positive electrode transfer mechanism 4.

[0067] like Figure 7 As shown, the negative electrode transfer mechanism 7 includes a third chain conveying component 71, a material support weight block 72, a top material upper limit detection component 73, a negative electrode top material cylinder 74, a drive motor 75, and a negative electrode positioning stop 76. The drive motor 75 is connected to the third chain conveying component 71. A side plate 77 is provided on the side of the third chain conveying component 71. The material support weight block 72 is provided on the side plate 77. The top material upper limit detection component 73, the electrode positioning stop, and the top material cylinder are located at the same end of the third chain conveying component 71. The top material cylinder is located below the third chain conveying component 71.

[0068] Furthermore, such as Figure 8 As shown, the electrode group stacking mechanism 8 includes a pushing cylinder 81, a connecting plate 82, an electrode group receiving box 83, a lifting seat 84, a push rod lifting cylinder 85, a plate group push rod 86, a lifting guide shaft 87, and a guide sleeve 88. The electrode group receiving box 83 is fixedly installed inside the frame 1, and its bottom surface has two parallel guide grooves. The pushing cylinder 81 is located below the electrode group receiving box 83 and is connected to the connecting plate 82. Several lifting guide shafts 87 are connected below the connecting plate 82. The lifting guide shafts 87 are connected to the lifting seat 84, which can be raised and lowered, through the guide sleeve 88. Two plate group push rods 86 are located on the upper surface of the lifting seat 84 and can pass through the connecting plate 82 and rise within the two guide grooves. The push rod lifting cylinder 85 is mounted on one of the lifting guide shafts 87 and is connected to the bushing of the lifting guide shaft 87. When several positive and negative electrode plates are stacked alternately in the electrode plate group receiving box 83 to form an electrode plate group, the push rod lifting cylinder 85 drives the lifting seat 84 to move upward, so that the plate group push rod 86 moves upward and passes through the guide groove. Then, the push cylinder 81 drives the connecting plate 82 to move laterally, thereby driving the plate group push rod 86 to move laterally in the guide groove, and then pushes the electrode plate group to the finished product output mechanism 9. Subsequently, the push rod lifting cylinder 85 drives the electrode plate group push rod 86 to move downward, and the push cylinder 81 drives the connecting plate 82 back to its original position. This can avoid affecting the stacking of positive and negative electrode plates and improve efficiency.

[0069] Furthermore, such as Figure 9 As shown, the finished product output mechanism 9 includes a plate group support plate 91, a plate group backing plate 92, a width correction mechanism 93, an output motor 94, a safety cover 95, a plate group positioning photoelectric sensor 96, and a fourth chain conveyor component 97. The output motor 94 is connected to the fourth chain conveyor component 97. The plate group support plate 91 and the plate group backing plate 92 are vertically spaced on the fourth chain conveyor component 97 and are staggered. The plate group positioning photoelectric sensor 96 and the width correction mechanism 93 are located beside the fourth chain conveyor component 97. The width correction mechanism 93 is used to correct and align any misaligned positive or negative electrode plates in the plate group, making the entire plate group flat. The plate group positioning photoelectric sensor 96 is used to detect whether there is a plate group placed between the plate group support plate 91 and the plate group backing plate 92. The safety cover 95 is located at the end of the first chain conveyor component 61 away from the plate group stacking mechanism 8.

[0070] When adjacent plate group support plates 91 and plate group backing plates 92 pass through the arc-shaped section of the fourth chain conveyor component 97, they are perpendicular to each other. Taking the upper half-arc-shaped section of the fourth chain conveyor component 97 near the electrode group stacking mechanism 8 as an example, when the plate group backing plate 92 has moved to the intersection of the upper parallel section of the fourth chain conveyor component 97 and the arc-shaped section, it is in a vertical state, while the plate group support plate 91 moves to the top of the arc-shaped section, it is in a horizontal state and flush with the bottom surface of the electrode group receiving box 83. The plate group backing plate 92 and the plate group support plate 91 are perpendicular to each other. At this time, the electrode group can stably fall onto the plate group support plate 91. After the fourth chain conveyor component 97 rotates, when the adjacent plate group support plates 91 and plate group backing plates 92 both move to the upper parallel section of the fourth chain conveyor component 97, the electrode groups between them can be clamped. The system receives and flips the horizontally stacked electrode group to achieve vertical electrode group transport.

[0071] Compared with the applicant's earlier chip wrapping machine, the present invention differs in the following ways:

[0072] Due to the different raw materials used in the packaging, the packaging methods for the positive electrode sheets differ. The fiberglass separator paper (industry name: PE film) used in this packaging is highly tough and difficult to cut. Furthermore, the packaging method requires a sewn-bag style, which not only folds the paper in half to enclose the electrode sheet in the center but also presses the two sides of the separator paper together to sew it into a bag. Previously, the packaging used separator paper (industry name: AGM), which is softer and more cotton-like, tear-resistant, and easy to cut; simply folding it in half to enclose the electrode sheet in the center was sufficient to meet the requirements.

[0073] The paper feeding structure is different. This invention only needs to feed a single layer of release paper, and is equipped with a single paper feeding structure, which is easy and quick to operate, and the paper feeding position is relatively low. Earlier wrapping machines required feeding single or double layers of release paper for different models, so they were equipped with two paper feeding structures on the left and right, which was more cumbersome.

[0074] The parallel feeding method is different. It has been improved on the basis of the original parallel feeding method. The top feeding is more stable and an uninterrupted feeding method has been added, which allows the material to be continuously transported forward, greatly improving the production efficiency of the equipment.

[0075] The stacking method is different. This invention eliminates the lifting method of stepper and lead screw combination. When it reaches the end of the electrode plate conveying mechanism (conveyor chain), it automatically falls and stacks, that is, it is automatically stacked after output.

[0076] The suction plate method is different. The positive suction mechanism of this invention does not use the previous negative pressure fan equipment, but uses a self-made vacuum generator to achieve the same effect. It is also low in noise, easy to maintain, not easy to be damaged, and the suction plate is more stable.

[0077] The paper cutting mechanism is different. Because the raw materials are difficult to cut, the paper cutter uses a scissor-like cutting method.

[0078] The finished product output method is different. The finished product output of this invention is from the horizontal stacking of positive and negative electrode sheets, which is then rotated 90 degrees to be output vertically. This makes it convenient for users' factories to use artificial intelligence robotic arms to connect with the production line. The finished product correction is added to the conveyor belt in this output method. The finished product output of the earlier packaging machine is horizontal, which occupies more space.

[0079] The above embodiments are merely descriptions of preferred embodiments of the present invention and are not intended to limit the scope of the present invention. Various modifications and improvements made by those skilled in the art to the technical solutions of the present invention without departing from the spirit of the present invention should fall within the protection scope defined by the claims of the present invention.

Claims

1. A coordinated process for positive electrode wafer wrapping, stacking, and finished product conveying, characterized by comprising the following steps: Step 1: Wrapping the positive electrode sheet The positive electrode sheet feeding, bagging, and stacking of the wrapped positive electrode sheets are completed during the electrode sheet conveying process of the electrode sheet conveying mechanism. 1.1 The positive electrode sheet is transferred to the electrode plate conveying mechanism via the positive electrode sheet adsorption and transfer mechanism; 1.2 The positive electrode sheet is continuously conveyed forward along the electrode plate conveying mechanism and the positive electrode sheet is bagged and wrapped in the paper cutting and wrapping mechanism to form a wrapped electrode plate; In step 1.2, the positive electrode bag packaging requirement is a sewn bag type, using glass fiber separator paper folded in the middle to wrap the electrode sheet in the middle, and at the same time, the glass fiber separator paper is pressed and sewn together on both sides in the feeding direction to form a bag. 1.3 The packaged electrode plates are continuously conveyed forward along the electrode plate conveying mechanism and fall freely onto the electrode plate stacking mechanism; Step 2: Stacking pieces After the foil plate falls off, the negative electrode adsorption and transfer mechanism moves the negative electrode to the plate stacking mechanism, and the negative electrode falls onto the foil plate. The cycle works to achieve the staggered stacking of the negative electrode and the foil plate to form a plate group. Step 3: Finished Product Conveying The finished product output mechanism enables the flipping of the electrode group and the vertical transport of the electrode group to the next process.

2. A fully automated battery lamination and stacking machine for implementing the coordinated process of positive electrode sheet wrapping, stacking, and finished product conveying as described in claim 1, characterized in that: The device includes a frame, on which is provided an electrode plate conveying mechanism for conveying positive electrode sheets. On one side of the electrode plate conveying mechanism is a positive electrode sheet adsorption and transfer mechanism for transferring positive electrode sheets to the electrode plate conveying mechanism. The electrode plate conveying mechanism is provided with a paper cutting and wrapping mechanism for bagging positive electrode sheets. At the front and rear ends of the electrode plate conveying mechanism are respectively provided a paper feeding mechanism and an electrode plate stacking mechanism. A finished product output mechanism is provided behind the electrode plate stacking mechanism. The paper feeding mechanism and the paper cutting and wrapping mechanism are connected by a separating paper. On one side of the electrode plate stacking mechanism is a negative electrode sheet adsorption and transfer mechanism for transferring negative electrode sheets to the electrode plate stacking mechanism.

3. The fully automatic battery pack stacking machine according to claim 2, characterized in that: The electrode plate conveying mechanism includes a first chain conveying component, a positioning detection photoelectric component, an electrode empty space detection photoelectric component, a double plate detection component, and a conveying motor. The conveying motor is connected to the first chain conveying component for transmission. The positioning detection photoelectric component, the electrode empty space detection photoelectric component, and the double plate detection component are sequentially arranged on the first conveying component.

4. The fully automatic battery pack stacking machine according to claim 2, characterized in that: The paper feeding mechanism includes a paper feeding tray, a paper feeding drive component, and a paper feeding crossbeam. The paper feeding tray is rotatably mounted on the paper feeding frame. The paper feeding drive component is mounted on the paper feeding frame and is connected to the paper feeding tray in a transmission manner. Several paper feeding crossbeams are mounted on the paper feeding frame.

5. The fully automatic battery pack stacking machine according to claim 2, characterized in that: The paper cutting and packaging mechanism includes a paper feeding frame, a paper feeding motor, a paper guide frame, paper feeding rollers, a cutter cylinder, and a separator paper pressing component. A drive roller assembly is located at the top of the paper feeding frame. The paper guide frame is positioned below the drive roller assembly and contains a guide groove. At least one paper feeding roller is located below the paper guide frame. The paper feeding motor is connected to the paper feeding rollers. The cutter cylinder is located below the paper feeding rollers and is connected to a paper cutter. The separator paper pressing component is located behind the electrode plate conveying mechanism. The separator paper pressing component, which is coaxial with the electrode plate conveying mechanism, includes a transmission belt, an upper rotating shaft, a lower rotating shaft, transmission wheels, pressing gears, and a pressing motor. The transmission belt rotates cyclically through two lower rotating shafts. The upper rotating shaft is located above the lower rotating shaft closest to the electrode plate conveying mechanism. The upper rotating shaft and the lower rotating shaft are each provided with several transmission wheels. Several pressing gears are respectively located at both ends of the upper rotating shaft and the lower rotating shaft, and the pressing gears on the upper rotating shaft and the lower rotating shaft mesh with each other.

6. The fully automatic battery pack stacking machine according to claim 2, characterized in that: The positive electrode adsorption and transfer mechanism includes a positive electrode transfer mechanism and a forward suction mechanism. The positive electrode transfer mechanism includes a motor drive component, a sensor, a second chain conveyor component, and a positive electrode top-loading cylinder. The motor drive component drives the second chain conveyor component to rotate. The positive electrode top-loading cylinder and the sensor are located at one end of the second chain conveyor component near the electrode plate conveyor component. The positive electrode top-loading cylinder is located below the second chain conveyor component. The forward suction mechanism includes a transverse cylinder, a guide shaft, upper and lower suction cylinders, a suction cup assembly, a vacuum generator, a suction sensor, and a pressure regulating device. The transverse cylinder is driven by a guide block, which drives the guide block to move directionally on the guide shaft. The upper and lower suction cylinders are located below the guide block. The suction cup assembly is connected below the upper and lower suction cylinders. The vacuum generator and the pressure regulating device are respectively connected to the suction cup assembly. The suction sensor is located on one side of the suction cup assembly.

7. The fully automatic battery pack stacking machine according to claim 2, characterized in that: The negative electrode adsorption and transfer mechanism includes a negative electrode transfer mechanism and a forward suction mechanism. The negative electrode transfer mechanism includes a third chain conveyor component, a material support weight block, a top material upper limit detection component, a negative electrode top material cylinder, a drive motor, and a negative electrode positioning stop. The drive motor is connected to the third chain conveyor component. A side plate is provided on the side of the third chain conveyor component. The material support weight block is located on the side plate. The top material upper limit detection component, the electrode positioning stop, and the top material cylinder are located at the same end of the third chain conveyor component. The top material cylinder is located below the third chain conveyor component.

8. The fully automatic battery pack stacking machine according to claim 2, characterized in that: The electrode plate stacking mechanism includes a pushing cylinder, a connecting plate, an electrode plate receiving box, a lifting seat, a push rod lifting cylinder, a plate group push rod, a lifting guide shaft, and a guide sleeve. The electrode plate receiving box is fixedly installed in the frame body, and its bottom surface has two parallel guide grooves. The pushing cylinder is located below the electrode plate receiving box and is connected to the connecting plate. Several lifting guide shafts are connected below the connecting plate. The lifting guide shaft is connected to a lifting seat that can be raised and lowered through the guide sleeve. Two plate group push rods are located on the upper surface of the lifting seat and can pass through the connecting plate and move up and down within the two guide grooves. The push rod lifting cylinder is located on one of the lifting guide shafts and is drivenly connected to the bushing of the lifting guide shaft.

9. A fully automatic battery pack stacking machine according to claim 3, characterized in that: The finished product output mechanism includes a plate group support plate, a plate group backing plate, a width correction mechanism, an output motor, a safety cover, a plate group positioning photoelectric sensor, and a fourth chain conveyor component. The output motor is connected to the fourth chain conveyor component. The plate group support plate and the plate group backing plate are vertically spaced on the fourth chain conveyor component and are staggered. The plate group positioning photoelectric sensor and the width correction mechanism are located beside the fourth chain conveyor component. The safety cover is located at the end of the first chain conveyor component away from the plate group stacking mechanism.

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