Lamination equipment capable of drawing spacers

Abstract

The lamination equipment comprises a membrane feeding mechanism, a feeding mechanical arm, at least three material boxes, at least two positioning tables and a lamination table, the membrane feeding mechanism is located on the peripheral side of the lamination table and used for laminating diaphragms on the lamination table, and the three material boxes comprise the positive electrode material box, the negative electrode material box and the partition plate material box; the two positioning tables comprise a positive electrode positioning table and a negative electrode positioning table, the positive electrode material box, the positive electrode positioning table, the lamination table, the negative electrode positioning table, the negative electrode material box and the partition plate material box are sequentially arranged in the left-right direction, and the feeding range of the feeding manipulator covers the positive electrode material box, the positive electrode positioning table, the lamination table, the negative electrode positioning table, the negative electrode material box and the partition plate material box. The lamination equipment is provided with the partition plate material box, and the feeding range of the feeding manipulator covers the partition plate material box, so that the functions of pulling away the partition plate and laminating can be realized at the same time by utilizing the feeding manipulator, other manipulators and partition plate containers do not need to be externally arranged, the cost is saved, and the safety is improved.

Description

Technical Field

[0001] The utility model relates to lamination equipment, in particular to lamination equipment with removable spacers. Background Art

[0002] At present, some battery cells are stacked using stacking equipment. Specifically, the stacking equipment transports the diaphragm back and forth to the stacking table to form a stack. During the stacking process, an electrode sheet is placed for each layer of diaphragm, and the positive and negative electrodes are placed in an alternating order.

[0003] Some battery electrodes are made of copper sheets. The surface of the positive electrode is coated, making it less prone to deformation. The negative electrode is a bare copper sheet, which is easily deformed under pressure. Therefore, when storing stacked negative electrodes, a separator needs to be placed between the two negative electrodes.

[0004] However, the existing lamination equipment's robotic arm cannot remove the spacers, requiring an external robotic arm and spacer container to do so, increasing equipment costs. Furthermore, the coordination of the external robotic arm presents potential risks, such as potential collisions with the lamination equipment's robotic arm. Utility Model Content

[0005] In order to overcome the shortcomings and deficiencies in the prior art, the purpose of the present invention is to design a stacking device with removable spacers, which can remove the spacers in the negative electrode stack and perform stacking operations on the positive and negative electrode sheets, saving costs and improving safety.

[0006] To achieve the above-mentioned purpose, the utility model provides a lamination device with removable separators, comprising: a film feeding mechanism, a feeding robot, at least two positioning tables and a lamination table, the film feeding mechanism is located on the peripheral side of the lamination table and is used to stack the separator on the lamination table, the two positioning tables are respectively: a positive electrode positioning table and a negative electrode positioning table, the lamination device also includes: at least three material boxes, the three material boxes are respectively: a positive electrode material box, a negative electrode material box and a separator material box, the positive electrode material box, the positive positioning table, the lamination table, the negative electrode positioning table, the negative electrode material box and the separator material box are arranged in sequence along the left and right directions, and the feeding range of the feeding robot covers the positive electrode material box, the positive electrode positioning table, the lamination table, the negative electrode positioning table, the negative electrode material box and the separator material box.

[0007] Furthermore, the film feeding mechanism includes: a film feeding support, an output roller, several guide rollers, several tensioning rollers, a flattening device, a front-to-back position sensor, a film feeding clamp, a reciprocating left-right linear module, and a fine-tuning front-to-back linear module. The output roller, guide roller, and tensioning roller are all rotatably arranged on the film feeding support, and the tensioning roller can move in a circular motion. The flattening device and the left-to-right linear modules are both fixed to the film feeding support. The left-to-right linear modules are drivably connected to the film feeding clamp to drive the film feeding clamp to move left and right. The fine-tuning front-to-back linear module is connected to the film feeding support to drive the film feeding clamp to move back and forth. The diaphragm is transferred from the output roller to the film feeding clamp, and the transfer path passes through the guide rollers, tensioning rollers, the flattening device, and the front-to-back position sensor. The film feeding clamp is located directly above the lamination table. The front-to-back position sensor can detect the front-to-back position of the diaphragm, and the fine-tuning front-to-back linear module can adjust the front-to-back position of the diaphragm output by the film feeding clamp to ensure that each layer of diaphragm is flush in the front-to-back direction.

[0008] Furthermore, the flattening device includes a flattening frame, a flattening cylinder, a flattening plate, and a flattening roller. The flattening frame is fixed to the film feeding bracket, the cylinder body of the flattening cylinder is fixed to the flattening frame, the piston rods of the flattening cylinders are arranged on the left and right sides and fixedly connected to the flattening plate, and the flattening rollers are rotatably arranged on the flattening frame, and the flattening rollers and the flattening plate are arranged opposite each other on the left and right sides. The flattening plate and the flattening rollers cooperate to flatten the diaphragm, ensuring the flatness of the diaphragm.

[0009] Furthermore, the film feed clamp includes a film feed plate, several film feed rollers, a film feed cylinder, a film feed block, and at least two output rollers. The film feed rollers are rotatably mounted on the film feed plate, the cylinder body of the film feed cylinder is fixed to the film feed plate, and the piston rod of the film feed cylinder is vertically arranged and fixedly connected to the film feed block. Two output rollers are rotatably mounted on the film feed block and arranged opposite each other. The diaphragm passes through the film feed rollers and is transferred between the two output rollers. The film feed rollers guide the diaphragm, and the film feed cylinder drives the output rollers up and down to achieve the action of stacking the diaphragms.

[0010] Furthermore, the feeding robot includes: left and right linear modules for feeding, at least three feeding heads, at least two material moving heads and a film cutting head, the left and right linear modules for feeding are driven and connected with the three feeding heads, two material moving heads and the film cutting head to drive the three feeding heads, two material moving heads and the film cutting head to move left and right at the same time; the three feeding heads are respectively: a positive electrode feeding head, a negative electrode feeding head and a spacer feeding head, the feeding range of the positive electrode feeding head covers the positive electrode material box and the positive electrode positioning table, the feeding range of the negative electrode feeding head covers the negative electrode material box and the negative electrode positioning table, and the feeding range of the spacer feeding head covers the negative electrode material box and the spacer material box; the two material moving heads are respectively: a positive electrode moving head and a negative electrode moving head, the feeding range of the positive electrode moving head covers the positive electrode positioning table and the stacking table, and the feeding range of the negative electrode moving head covers the negative electrode positioning table and the stacking table; the film cutting head is located between the negative electrode moving head and the negative electrode feeding head. Among them, setting up three material picking heads and two material transfer heads can perform five sets of actions simultaneously, improving the stacking efficiency; setting up a film cutting head can cut the diaphragm, so that the stacked battery cells are separated from the diaphragm raw materials.

[0011] Furthermore, the material picking head includes: a material picking cylinder and a material picking pipe, the piston rod of the material picking cylinder is arranged vertically and fixedly connected to the material picking pipe, and the suction hole of the material picking pipe faces downward; the material transfer head includes: a material transfer cylinder and a material transfer suction plate, the piston rod of the material transfer cylinder is arranged vertically and fixedly connected to the material transfer suction plate, and the suction hole of the material transfer suction plate faces downward; the film cutting head includes: a film cutting cylinder and a film cutting knife, the piston rod of the film cutting cylinder is arranged vertically and fixedly connected to the film cutting knife, and the film cutting knife faces downward. Among them, the three material picking cylinders and the two material transfer cylinders are driven synchronously, and five groups of actions can be performed simultaneously; in addition to being used to suck the electrode sheet, the suction plate can also be used to apply pressure when placing the electrode sheet to ensure the compactness of the stack.

[0012] The material box further comprises: an upper and lower linear pusher module, a pusher rod, a receiving plate, and a material trough. The upper and lower linear pusher module is drivably connected to the pusher rod to drive the pusher rod up and down. The pusher rod supports the receiving plate, which is vertically movable within the material trough. The upper and lower linear pusher module drives the receiving plate to achieve material feeding and storage functions, maintaining the top layer of material at a set height.

[0013] Further, the positioning table comprises a positioning seat, front and rear fixed plates, left and right fixed plates, front and rear movable plates, left and right movable plates, front and rear positioning cylinders and left and right positioning cylinders, the front and rear fixed plates and the left and right fixed plates are fixed to the upper surface of the positioning seat, the front and rear movable plates and the left and right movable plates are movably arranged on the upper surface of the positioning seat, the front and rear fixed plates are arranged opposite to the front and rear movable plates, the left and right fixed plates are arranged opposite to the left and right movable plates, the piston rods of the front and rear positioning cylinders are arranged front and rear and are fixedly connected with the front and rear movable plates, and the piston rods of the left and right positioning cylinders are arranged left and right and are fixedly connected with the left and right movable plates, wherein the positioning table can realize the pre-positioning effect on the electrode sheet, and the position accuracy of the electrode sheet placed on the stacking table is ensured.

[0014] Further, the stacking table comprises a stacking seat, a stacking up-down linear module, first and second clamping strips, at least two clamping film up-down cylinders, at least two clamping film transverse frames and at least two clamping film left-right cylinders, the stacking up-down linear module is drivingly connected with the stacking seat to drive the stacking seat to move up and down, the first and second clamping strips are arranged left and right at intervals, the piston rods of the clamping film up-down cylinders are arranged up and down and are fixedly connected with the first and second clamping strips respectively, the cylinder bodies of the two clamping film up-down cylinders are fixed to the two clamping film transverse frames respectively, and the piston rods of the clamping film left-right cylinders are arranged left and right and are fixedly connected with the two clamping film transverse frames respectively, wherein the first and second clamping strips can press each layer of the stacked film tightly, and the compactness of the stacked film is ensured.

[0015] Further, the stacking device further comprises a discharging manipulator, the feeding range of the discharging manipulator covers the stacking table, the discharging manipulator comprises a discharging chuck, a pneumatic finger, a discharging support, a discharging left-right linear module, a discharging plate and a discharging front-rear linear module, the pneumatic finger is drivingly connected with the discharging chuck to drive the discharging chuck to clamp and release, the pneumatic finger is fixed to the discharging support, the discharging left-right linear module is drivingly connected with the discharging support to drive the discharging support to move left and right, the discharging left-right linear module is fixed to the discharging plate, and the discharging front-rear linear module is drivingly connected with the discharging plate to drive the discharging plate to move front and rear, wherein the discharging manipulator can realize the automatic discharging function.

[0016] After the above technical scheme is adopted, beneficial effects are as follows: the stacking device of the utility model has the partition plate box, and the feeding range of the feeding manipulator covers the partition plate box, so that the feeding manipulator can realize the functions of separating the partition plate and stacking the film, other manipulators and partition plate containers are not needed, cost is saved, and safety is improved. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a schematic view of the stacking device of the utility model.

[0018] Figure 2 This is a schematic diagram of the film feeding mechanism involved in the present utility model;

[0019] Figure 3 This is a schematic diagram of the feeding robot involved in the present utility model;

[0020] Figure 4 This is a schematic diagram of the material box involved in the utility model;

[0021] Figure 5 A schematic diagram of a positioning platform involved in the present utility model;

[0022] Figure 6 A schematic diagram of a stacking platform according to the present invention;

[0023] Figure 7 This is a schematic diagram of the unloading robot involved in the present utility model.

[0024] The accompanying drawings are marked as follows: 1. film feeding mechanism; 11. film feeding bracket; 12. output roller; 13. guide roller; 14. tensioning roller; 15. flattening device; 151. flattening frame; 152. flattening cylinder; 153. flattening plate; 154. flattening roller; 16. front and rear position sensors; 17. film feeding clamp; 171. film feeding plate; 172. film feeding roller; 173. film feeding cylinder; 174. film feeding block; 175. output roller; 18. reciprocating left and right linear module; 19. fine-tuning front and rear linear module;

[0025] 2. Feeding robot; 21. Feeding left and right linear modules; 22. Retrieving head; 22a. Positive electrode retrieving head; 22b. Negative electrode retrieving head; 22c. Spacer retrieving head; 221. Retrieving cylinder; 222. Retrieving suction pipe; 23. Transferring head; 23a. Positive electrode retrieving head; 23b. Negative electrode retrieving head; 231. Transferring cylinder; 232. Transferring suction plate; 24. Film cutting head; 241. Film cutting cylinder; 242. Film cutting knife;

[0026] 3. Material box; 3a. Positive electrode material box; 3b. Negative electrode material box; 3c. Separator material box; 31. Up and down linear module for pushing material; 32. Push rod; 33. Receiver plate; 34. Material trough;

[0027] 4. Positioning platform; 4a. Positive positioning platform; 4b. Negative positioning platform; 41. Positioning seat; 42. Front and rear fixed plates; 43. Left and right fixed plates; 44. Front and rear movable plates; 45. Left and right movable plates; 46. Front and rear positioning cylinders; 47. Left and right positioning cylinders;

[0028] 5. Lamination table; 51. Lamination seat; 52. Lamination upper and lower linear modules; 53. First clamping bar; 54. Second clamping bar; 55. Film clamping upper and lower cylinders; 56. Film clamping transverse frame; 57. Film clamping left and right cylinders;

[0029] 6. Unloading robot; 61. Unloading chuck; 62. Pneumatic finger; 63. Unloading bracket; 64. Unloading left and right linear modules; 65. Unloading plate; 66. Unloading front and rear linear modules. DETAILED DESCRIPTION

[0030] The technical solution of the present invention is further described below by way of embodiments:

[0031] The utility model provides a lamination device with a removable spacer, such as Figure 1 As shown, the lamination equipment includes: a film feeding mechanism 1, a feeding robot 2, at least three material boxes 3, at least two positioning tables 4, a lamination table 5 and a unloading robot 6. The film feeding mechanism 1 is located on the peripheral side of the lamination table 5 and is used to stack the diaphragm on the lamination table 5. The three material boxes 3 are: a positive electrode material box 3a, a negative electrode material box 3b and a partition material box 3c. The two positioning tables 4 are: a positive electrode positioning table 4a and a negative electrode positioning table 4b. The positive electrode material box 3a, the positive electrode positioning table 4a, the lamination table 5, the negative electrode positioning table 4b, the negative electrode material box 3b and the partition material box 3c are arranged in sequence along the left and right directions (either from left to right or from right to left). The feeding range of the feeding robot 2 covers the positive electrode material box 3a, the positive electrode positioning table 4a, the lamination table 5, the negative electrode positioning table 4b, the negative electrode material box 3b and the partition material box 3c. The feeding range of the unloading robot 6 covers the lamination table 5. During operation, the positive electrode box 3a and the negative electrode box 3b are respectively filled with positive electrode sheet stacks and negative electrode sheet stacks, and a spacer is provided between the upper and lower negative electrode sheets. The film feeding mechanism 1 reciprocates and outputs the spacer to the stacking table 5 so that the spacer is in a stacked state. After each layer of the spacer is stacked, the feeding robot 2 places the positive electrode sheet or the negative electrode sheet on the spacer in an alternating order, and before taking out the negative electrode sheet, takes out the spacer on the negative electrode sheet and puts it into the spacer box 3c. After the stacking is completed, the unloading robot 6 is used to take out the battery cell from the stacking table 5.

[0032] Specifically, if Figure 2As shown, the film feeding mechanism 1 includes: a film feeding bracket 11, an output roller 12 driven by a motor, a plurality of guide rollers 13, a plurality of tensioning rollers 14, a flattening device 15, a front and rear position sensor 16, a film feeding clamp 17, a reciprocating left and right linear module 18 and a fine-tuning front and rear linear module 19. The output roller 12, the guide roller 13 and the tensioning roller 14 can all be rotatably arranged on the film feeding bracket 11, and the tensioning roller 14 can move in a circular motion. The flattening device 15 and the left and right linear modules 18 are all fixed to the film feeding bracket 11. The left and right linear modules 18 are driven and connected to the film feeding clamp 17 to drive the film feeding clamp 17 to move left and right. The fine-tuning front and rear linear modules 19 are connected to the film feeding bracket 11 to drive the film feeding bracket 11 to move back and forth. The diaphragm is transmitted from the output roller 12 to the film feeding clamp 17 and the transmission path passes through the guide roller 13, the tensioning roller 14, the flattening device 15 and the front and rear position sensor 16. The film feeding clamp 17 is located directly above the stacking table 5. During operation, the output roller 12 rotates to deliver the membrane. Guided by several guide rollers 13, the membrane is transferred to the film feed clamp 17 and then to the laminating table 5. When a layer of membrane reaches the set length, the reciprocating left and right linear module 18 drives the membrane support 11 in the opposite direction. If the membrane tension is too high or too low, the tension can be adjusted by moving the tension roller 14. The flattening device 15 maintains the membrane's flatness. The front-to-back position sensor 16 senses the membrane's front-to-back position. The fine-tuning linear module 19 drives the film feed clamp 17 back and forth to adjust the front-to-back position.

[0033] In this embodiment, the tension roller 14 is rotatably provided on a swing rod, and the swing rod is rotatably provided on the film feeding support 11. When the swing rod swings, the tension roller 14 is driven to move in a circular motion around the rotating shaft of the swing rod.

[0034] More specifically, the flattening device 15 includes a flattening frame 151, a flattening cylinder 152, a flattening plate 153, and a flattening roller 154. The flattening frame 151 is fixed to the film feeding support 11. The cylinder body of the flattening cylinder 152 is fixed to the flattening frame 151. The piston rods of the flattening cylinder 152 are arranged on the left and right sides and are fixedly connected to the flattening plate 153. The flattening roller 154 is rotatably arranged on the flattening frame 151 and is arranged on the left and right sides opposite to the flattening plate 153. During operation, the flattening cylinder 152 can drive the flattening plate 153 to move toward the flattening roller 154 to apply pressure to the diaphragm.

[0035] More specifically, the film feeding clamp 17 includes: a film feeding plate 171, several film feeding rollers 172, a film feeding cylinder 173, a film feeding block 174 and at least two output rollers 175. The film feeding roller 172 is rotatably arranged on the film feeding plate 171, the cylinder body of the film feeding cylinder 173 is fixed to the film feeding plate 171, the piston rod of the film feeding cylinder 173 is arranged vertically and fixedly connected to the film feeding block 174, the two output rollers 175 are both rotatably arranged on the film feeding block 174 and are arranged opposite to each other on the left and right, and the diaphragm passes through the film feeding roller 172 and is transmitted between the two output rollers 175. During operation, the diaphragm is output between the two output rollers 175. After one layer of diaphragm is stacked, the film feeding cylinder 173 is used to drive the film feeding block 174 and the two output rollers 175 to move downward to ensure that the layer of diaphragm is in close contact with the electrode sheet. After the stacking platform 5 presses the layer of diaphragm, the film feeding cylinder 173 is used to drive the film feeding block 174 and the two output rollers 175 to move upward to prepare for stacking the next layer of diaphragm.

[0036] As a preferred solution, the front-rear position sensor 16 is located just above the two output rollers 175. The front-rear position sensor 16 can directly sense the front-rear position of the output end diaphragm, and the sensing result is more accurate.

[0037] Specifically, if Figure 3As shown, the feeding robot 2 includes: left and right linear modules 21 for feeding, at least three material taking heads 22, at least two material transfer heads 23 and a film cutting head 24. The left and right linear modules 21 for feeding are driven by the three material taking heads 22, the two material transfer heads 23 and the film cutting head 24 to drive the three material taking heads 22, the two material transfer heads 23 and the film cutting head 24 to move left and right at the same time; the three material taking heads 22 are respectively: a positive electrode material taking head 22a, a negative electrode material taking head 22b and a spacer material taking head 22c. The feeding range of the positive electrode material taking head 22a covers the positive electrode material box 3a and the positive electrode material box 3b. The positive electrode positioning table 4a, the feeding range of the negative electrode material taking head 22b covers the negative electrode material box 3b and the negative electrode positioning table 4b, and the feeding range of the spacer material taking head 22c covers the negative electrode material box 3b and the spacer material box 3c; the two material transfer heads 23 are: the positive electrode material transfer head 23a and the negative electrode material transfer head 23b, the feeding range of the positive electrode material transfer head 23a covers the positive electrode positioning table 4a and the stacking table 5, and the feeding range of the negative electrode material transfer head 23b covers the negative electrode positioning table 4b and the stacking table 5; the film cutting head 24 is located between the negative electrode material transfer head 23b and the negative electrode material taking head 22b. During operation, the positive electrode material taking head 22a is used to transfer the positive electrode sheet from the positive electrode material box 3a to the positive electrode positioning table 4a, and the positive electrode material transferring head 23a is used to transfer the positive electrode sheet from the positive electrode positioning table 4a to the stacking table 5 and press the positive electrode sheet; the spacer material taking head 22c is used to transfer the spacer from the negative electrode material box 3b to the spacer material box 3c, and the negative electrode material taking head 22b is used to transfer the spacer from the negative electrode material box 3b to the negative electrode positioning table 4b, and the negative electrode material transferring head 23b is used to transfer the spacer from the negative electrode positioning table 4b to the stacking table 5 and press the negative electrode sheet; after stacking is completed, the unloading robot 6 is used to remove the battery cell from the stacking table 5, and the film cutting head 24 is used to cut the diaphragm for the next round of stacking operation.

[0038] During the lamination process, the three material taking heads 22 and the two material transfer heads 23 operate synchronously. Specifically, the positive electrode material taking head 22a takes the positive electrode sheet from the positive electrode material box 3a, the positive electrode material transfer head 23a takes the positive electrode sheet from the positive electrode positioning platform 4a, the negative electrode material transfer head 23b places the negative electrode sheet into the stacking platform 5, the negative electrode material taking head 22b places the negative electrode sheet into the cover negative electrode positioning platform 4b, and the separator material taking head 22c takes the separator from the negative electrode material box 3b. The positive electrode material taking head 22a places the positive electrode sheet into the positive electrode positioning platform 4a, the positive electrode material transfer head 23a places the positive electrode sheet into the stacking platform 5, the negative electrode material taking head 22b takes the negative electrode sheet from the negative electrode material box 3b, the negative electrode material transfer head 23b takes the negative electrode sheet from the cover negative electrode positioning platform 4b, and the separator material taking head 22c places the separator into the separator material box 3c.

[0039] More specifically, the material retrieving head 22 includes a retrieving cylinder 221 and a retrieving suction pipe 222. The piston rod of the retrieving cylinder 221 is arranged vertically and fixedly connected to the retrieving suction pipe 222, with the suction hole of the retrieving suction pipe 222 facing downward. The material transfer head 23 includes a retrieving cylinder 231 and a retrieving suction plate 232. The piston rod of the retrieving cylinder 231 is arranged vertically and fixedly connected to the retrieving suction plate 232, with the suction hole of the retrieving suction plate 232 facing downward. The film cutting head 24 includes a film cutting cylinder 241 and a film cutting knife 242. The piston rod of the film cutting cylinder 241 is arranged vertically and fixedly connected to the film cutting knife 242, with the film cutting knife 242 facing downward. During operation, the retrieving cylinder 221, the retrieving cylinder 231, and the film cutting cylinder 241 respectively drive the retrieving suction pipe 222, the retrieving suction plate 232, and the film cutting knife 242 to move up and down.

[0040] Specifically, if Figure 4 As shown, the material box 3 includes: an upper and lower linear pusher module 31, a pusher rod 32, a receiving plate 33, and a material trough 34 surrounded by multiple limit rods. The upper and lower linear pusher module 31 is drivably connected to the pusher rod 32 to drive the pusher rod 32 to move up and down. The pusher rod 32 supports the receiving plate 33, and the receiving plate 33 is disposed inside the material trough 34 so as to be movable up and down. During operation, the upper and lower linear pusher module 31 drives the pusher rod 32 to move upward, thereby driving the receiving plate 33 to move upward, thereby realizing the feeding function; the upper and lower linear pusher module 31 drives the pusher rod 32 to move downward, thereby driving the receiving plate 33 to move downward, thereby realizing the material storage function.

[0041] Specifically, if Figure 5 As shown, the positioning platform 4 includes: a positioning seat 41, front and rear fixed plates 42, left and right fixed plates 43, front and rear movable plates 44, left and right movable plates 45, front and rear positioning cylinders 46 and left and right positioning cylinders 47. The front and rear fixed plates 42 and the left and right fixed plates 43 are all fixed to the upper surface of the positioning seat 41, and the front and rear movable plates 44 and the left and right movable plates 45 are all movably arranged on the upper surface of the positioning seat 41. The front and rear fixed plates 42 and the front and rear movable plates 44 are arranged relative to each other front and back, and the left and right fixed plates 43 and the left and right movable plates 45 are arranged relative to each other left and right, the cylinder bodies of the front and rear positioning cylinders 46 are fixed to the positioning seat 41, the piston rods of the front and rear positioning cylinders 46 are arranged front and back and fixedly connected to the front and rear movable plates 44, the cylinder bodies of the left and right positioning cylinders 47 are fixed to the positioning seat 41, and the piston rods of the left and right positioning cylinders 47 are arranged left and right and fixedly connected to the left and right movable plates 45. During operation, the feeding robot 2 is used to place the electrode sheet on the positioning seat 41, and the front and rear positioning cylinders 46 and the left and right positioning cylinders 47 can respectively drive the front and rear movable plates 44 and the left and right movable plates 45 to move linearly to limit the electrode sheet and correct the front and rear and left and right positions of the electrode sheet.

[0042] Specifically, if Figure 6As shown, the stacking table 5 includes: a stacking seat 51, a stacking upper and lower linear module 52, a first clamping bar 53, a second clamping bar 54, at least two film clamping upper and lower cylinders 55, at least two film clamping transverse frames 56 and at least two film clamping left and right cylinders 57. The stacking upper and lower linear module 52 is driven and connected to the stacking seat 51 to drive the stacking seat 51 to move up and down. The first clamping bar 53 and the second clamping bar 54 are arranged at intervals left and right. The piston rods of the film clamping upper and lower cylinders 55 are arranged up and down and the piston rods of the two film clamping upper and lower cylinders 55 are fixedly connected to the first clamping bar 53 and the second clamping bar 54 respectively. The cylinder bodies of the two film clamping upper and lower cylinders 55 are respectively fixed to the two film clamping transverse frames 56. The piston rods of the film clamping left and right cylinders 57 are arranged left and right and the piston rods of the two film clamping left and right cylinders 57 are fixedly connected to the two film clamping transverse frames 56 respectively. During operation, the upper and lower linear modules 52 of the stack can be used to drive the stacking seat 51 to move downward so as to keep the top layer at a set height when the number of stacking layers increases; the two upper and lower cylinders 55 of the clamping membrane are used to control the up and down movement of the first clamping bar 53 and the second clamping bar 54 respectively, and the two left and right cylinders 57 of the clamping membrane are used to control the left and right movement of the first clamping bar 53 and the second clamping bar 54 respectively.

[0043] During the stacking process, one clamp is used to press the second upper diaphragm, and another clamp is used to press the bent end of the top diaphragm. After one layer of diaphragm is stacked, the original top diaphragm becomes the second upper layer, and the clamp located on the original second upper diaphragm is pulled out in the left and right directions, and after moving upward, it is moved downward to re-press the bent end of the new top diaphragm, that is, the two clamps alternately press the bent end of the latest stacked diaphragm.

[0044] As a preferred solution, there are two first clamping bars 53 and two second clamping bars 54, four membrane clamping upper and lower cylinders 55, four membrane clamping transverse frames 56, and four membrane clamping left and right cylinders 57. The two first clamping bars 53 are arranged front and back opposite each other, and the two second clamping bars 54 are arranged front and back opposite each other. The two first clamping bars 53 and two second clamping bars 54 can compress the various membrane layers from four locations, making the product more compact.

[0045] Specifically, combined Figure 1 and 7As shown, the unloading robot 6 includes: a unloading chuck 61, a pneumatic finger 62, a unloading bracket 63, a left and right unloading linear module 64, a unloading plate 65, and a front and rear unloading linear module 66. The pneumatic finger 62 is drivably connected to the unloading chuck 61 to drive the unloading chuck 61 to clamp and release. The pneumatic finger 62 is fixed to the unloading bracket 63. The left and right unloading linear module 64 is drivably connected to the unloading bracket 63 to drive the unloading bracket 63 to move left and right. The left and right unloading linear module 64 is fixed to the unloading plate 65. The front and rear unloading linear module 66 is drivably connected to the unloading plate 65 to drive the unloading plate 65 to move forward and backward. During operation, the pneumatic finger 62 can be used to control the unloading chuck 61 to clamp and release the battery cells, and the left and right unloading linear module 64 and the front and rear unloading linear module 66 can be used to control the movement of the chuck 61 in the left and right directions and the front and rear directions.

[0046] As a preferred solution, the negative electrode positioning platform 4b, the negative electrode material box 3b, and the separator material box 3c are all fixed to the unloading plate 65. During unloading, the front and rear linear modules 66 can simultaneously drive the negative electrode positioning platform 4b, the negative electrode material box 3b, and the separator material box 3c to move and away from the side of the stacking platform 5, so that the unloading chuck 61 can take the material from the side of the stacking platform 5.

Claims

1. A lamination device with removable spacers, comprising: A film feeding mechanism, a feeding robot, at least two positioning tables and a stacking table, the film feeding mechanism is located on the peripheral side of the stacking table and is used to stack the diaphragm on the stacking table, the two positioning tables are respectively: a positive electrode positioning table and a negative electrode positioning table, and it is characterized in that: the stacking equipment also includes: at least three material boxes, the three material boxes are respectively: a positive electrode material box, a negative electrode material box and a separator material box, the positive electrode material box, the positive positioning table, the stacking table, the negative electrode positioning table, the negative electrode material box and the separator material box are arranged in sequence along the left and right directions, and the feeding range of the feeding robot covers the positive electrode material box, the positive positioning table, the stacking table, the negative electrode positioning table, the negative electrode material box and the separator material box.

2. The lamination device for removable spacers according to claim 1, characterized in that: The film feeding mechanism includes: a film feeding bracket, an output roller, several guide rollers, several tensioning rollers, a flattening device, front and rear position sensors, a film feeding clamp, a reciprocating left and right linear module and a fine-tuning front and rear linear module. The output roller, guide roller and tensioning roller can be rotatably arranged on the film feeding bracket and the tensioning roller can move in a circular motion. The flattening device and the left and right linear modules are fixed to the film feeding bracket. The left and right linear modules are driven and connected to the film feeding clamp to drive the film feeding clamp to move left and right. The fine-tuning front and rear linear modules are connected to the film feeding bracket to drive the film feeding bracket to move back and forth. The diaphragm is transmitted from the output roller to the film feeding clamp and the transmission path passes through the guide roller, tensioning roller, flattening device and front and rear position sensors. The film feeding clamp is located directly above the stacking table.

3. The lamination device for removable spacers according to claim 2, characterized in that: The flattening device includes: a flattening frame, a flattening cylinder, a flattening plate and a flattening roller. The flattening frame is fixed to the film feeding bracket, the cylinder body of the flattening cylinder is fixed to the flattening frame, the piston rod of the flattening cylinder is arranged on the left and right and is fixedly connected to the flattening plate, the flattening roller is rotatably arranged on the flattening frame, and the flattening roller and the flattening plate are arranged opposite to each other on the left and right.

4. The lamination device for removable spacers according to claim 2, characterized in that: The film feeding clamp includes: a film feeding plate, several film feeding rollers, a film feeding cylinder, a film feeding block and at least two output rollers. The film feeding roller is rotatably arranged on the film feeding plate, the cylinder body of the film feeding cylinder is fixed to the film feeding plate, the piston rod of the film feeding cylinder is vertically arranged and fixedly connected to the film feeding block, the two output rollers are rotatably arranged on the film feeding block and are arranged opposite to each other on the left and right, and the diaphragm passes through the film feeding roller and is transmitted between the two output rollers.

5. The lamination device for removable spacers according to claim 1, characterized in that: The feeding robot includes: left and right linear modules for feeding, at least three feeding heads, at least two material moving heads and a film cutting head, the left and right linear modules for feeding are driven and connected with the three feeding heads, two material moving heads and the film cutting head to drive the three feeding heads, two material moving heads and the film cutting head to move left and right at the same time; the three feeding heads are respectively: a positive electrode feeding head, a negative electrode feeding head and a spacer feeding head, the feeding range of the positive electrode feeding head covers the positive electrode material box and the positive electrode positioning table, the feeding range of the negative electrode feeding head covers the negative electrode material box and the negative electrode positioning table, and the feeding range of the spacer feeding head covers the negative electrode material box and the separator material box; the two material moving heads are respectively: a positive electrode moving head and a negative electrode moving head, the feeding range of the positive electrode moving head covers the positive electrode positioning table and the stacking table, and the feeding range of the negative electrode moving head covers the negative electrode positioning table and the stacking table; the film cutting head is located between the negative electrode moving head and the negative electrode feeding head.

6. The lamination device for removable spacers according to claim 5, characterized in that: The material picking head includes: a material picking cylinder and a material picking suction pipe, the piston rod of the material picking cylinder is arranged up and down and fixedly connected to the material picking suction pipe, and the suction hole of the material picking suction pipe faces downward; the material transferring head includes: a material transferring cylinder and a material transferring suction plate, the piston rod of the material transferring cylinder is arranged up and down and fixedly connected to the material transferring suction plate, and the suction hole of the material transferring suction plate faces downward; the film cutting head includes: a film cutting cylinder and a film cutting knife, the piston rod of the film cutting cylinder is arranged up and down and fixedly connected to the film cutting knife, and the film cutting knife faces downward.

7. The lamination device for removable spacers according to claim 1, characterized in that: The material box includes: upper and lower linear modules for pushing materials, a pushing rod, a receiving plate and a material trough. The upper and lower linear modules for pushing materials are connected to the pushing rod to drive the pushing rod to move up and down. The pushing rod supports the receiving plate, and the receiving plate is movably arranged inside the material trough.

8. The lamination device for removable spacers according to claim 1, characterized in that: The positioning platform includes: a positioning seat, front and rear fixed plates, left and right fixed plates, front and rear movable plates, left and right movable plates, front and rear positioning cylinders and left and right positioning cylinders, the front and rear fixed plates and left and right fixed plates are all fixed to the upper surface of the positioning seat, the front and rear movable plates and left and right movable plates are movably arranged on the upper surface of the positioning seat, the front and rear fixed plates and the front and rear movable plates are arranged relative to each other front and back, the left and right fixed plates and the left and right movable plates are arranged relative to each other left and right, the piston rods of the front and rear positioning cylinders are arranged front and back and fixedly connected to the front and rear movable plates, the piston rods of the left and right positioning cylinders are arranged left and right and fixedly connected to the left and right movable plates.

9. The lamination device for removable spacers according to claim 1, characterized in that: The stacking table includes: a stacking seat, upper and lower linear modules for stacking, a first clamping bar, a second clamping bar, at least two upper and lower cylinders for clamping membranes, at least two transverse frames for clamping membranes and at least two left and right cylinders for clamping membranes. The upper and lower linear modules for stacking are driven and connected to the stacking seat to drive the stacking seat to move up and down. The first clamping bar and the second clamping bar are arranged at left and right intervals. The piston rods of the upper and lower cylinders for clamping membranes are arranged up and down, and the piston rods of the two upper and lower cylinders for clamping membranes are fixedly connected to the first clamping bar and the second clamping bar respectively. The cylinder bodies of the two upper and lower cylinders for clamping membranes are respectively fixed to the two transverse frames for clamping membranes. The piston rods of the left and right cylinders for clamping membranes are arranged left and right, and the piston rods of the two left and right cylinders for clamping membranes are fixedly connected to the two transverse frames for clamping membranes respectively.

10. The lamination device for removable spacers according to claim 1, characterized in that: The stacking equipment also includes: a unloading robot, the feeding range of the unloading robot covers the stacking table; the unloading robot includes: a unloading chuck, pneumatic fingers, a unloading bracket, left and right unloading linear modules, a unloading plate and front and rear unloading linear modules, the pneumatic fingers are driven connected to the unloading chuck to drive the unloading chuck to clamp and release, the pneumatic fingers are fixed to the unloading bracket, the left and right unloading linear modules are driven connected to the unloading bracket to drive the unloading bracket to move left and right, the left and right unloading linear modules are fixed to the unloading plate, and the front and rear unloading linear modules are driven connected to the unloading plate to drive the unloading plate to move back and forth.

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