Lamination device

Abstract

The utility model discloses a lamination device which comprises a lamination base and a lamination mechanism, the lamination mechanism comprises a lamination base arranged at the top end of the lamination base and a lamination table arranged at the top end of the lamination base, and the lamination device further comprises a left hot cutter mechanism and a right hot cutter mechanism which are oppositely arranged left and right, the lamination mechanism is located between the left hot cutter mechanism and the right hot cutter mechanism, the left hot cutter mechanism and the right hot cutter mechanism each comprise a hot cutting support and a hot cutter assembly, the hot cutting supports and the hot cutter assemblies are oppositely arranged front and back, and the two hot cutting supports are arranged at the top end of the lamination base. The hot cutter assemblies are arranged at the top ends of the two hot cutting supports, and the lamination table is located between the hot cutter assembly of the left hot cutter mechanism and the hot cutter assembly of the right hot cutter mechanism. According to the utility model, the quality of the battery cell is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of battery production, specifically relates to a lamination device. BACKGROUND

[0002] In the lithium battery manufacturing process, a plurality of battery cells can be produced at a time by adopting a lamination process. The lamination process generally includes a lamination step and a slitting step. In the lamination step, a lamination device is generally used for lamination. The specific lamination steps are as follows: first, a first layer of separator 1 is stacked on the lamination table of the lamination device from left to right, then the first layer of separator 1 is cut off by the left cold cutter mechanism on the left side of the lamination table, then a plurality of, for example, three negative electrode sheets 2 are stacked on the first layer of separator 1 by the negative electrode sheet manipulator, the plurality of negative electrode sheets 2 are arranged in sequence from front to back with intervals, then a second layer of separator 1 is stacked on the plurality of negative electrode sheets 2 from right to left, then the second layer of separator 1 is cut off by the right cold cutter mechanism on the right side of the lamination table, then a plurality of, for example, three positive electrode sheets 3 are stacked on the second layer of separator 1 by the positive electrode sheet manipulator, the plurality of positive electrode sheets 3 are arranged in sequence from front to back with intervals, and each positive electrode sheet 3 corresponds to one negative electrode sheet 2, then the above steps are repeated until the last layer of separator 1 is stacked, thus obtaining a battery cell as shown in FIG. Figure 1 Then the battery cell is clamped by the plurality of upper clamping jaws and the plurality of lower clamping jaws of the unloading manipulator, and then the battery cell is moved to the slitting step by the unloading manipulator for slitting, thereby obtaining a plurality of, for example, three single battery cells. Since the left cold cutter mechanism and the right cold cutter mechanism cannot perform edge sealing on all the edges of the separators 1 on both sides of the battery cell, the edges of all the separators 1 on both sides of the battery cell after lamination are in a loose state, and during the process of clamping the battery cell by the unloading manipulator and moving the battery cell to the slitting step, the edges of the separators 1 on both sides are prone to folding, thereby reducing the quality of the battery cell. UTILITY MODEL CONTENTS

[0003] In order to overcome the shortcomings of the prior art, the utility model provides a lamination device, which improves the quality of the battery cell.

[0004] The technical scheme adopted by the utility model to solve its technical problems is:

[0005] A stacking device includes a stacking base and a stacking mechanism. The stacking mechanism includes a stacking base disposed at the top of the stacking base and a stacking platform disposed at the top of the stacking base. It also includes a left hot cutting blade mechanism and a right hot cutting blade mechanism disposed opposite to each other. The stacking mechanism is located between the left and right hot cutting blade mechanisms. Each of the left and right hot cutting blade mechanisms includes two hot cutting supports and a hot cutting blade assembly disposed opposite to each other. The two hot cutting supports are respectively disposed at the top of the stacking base, and the hot cutting blade assembly is disposed at the top of the two hot cutting supports. The stacking platform is located between the hot cutting blade assembly of the left and right hot cutting blade mechanisms.

[0006] The beneficial effects of this utility model are as follows: By setting up a left hot cutting knife mechanism and a right hot cutting knife mechanism, the hot cutting knife components of the left and right hot cutting knife mechanisms can not only cut the diaphragm, but also seal the two sides of the battery cell. In this way, after the battery cell is clamped by multiple upper and lower grippers of the unloading robot and moved to the slitting process by the unloading robot, the two sides of the diaphragm of the battery cell will not fold, thus improving the quality of the battery cell. Attached Figure Description

[0007] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0008] Figure 1 This is a schematic diagram of the unsealed sides of the battery cell;

[0009] Figure 2 This is a schematic diagram of the structure of a stacking device after removing the stacking base according to an embodiment of the present invention;

[0010] Figure 3 yes Figure 2 A top view of the lamination device after removing the lamination base;

[0011] Figure 4 yes Figure 2 The diagram shown is a right view of the lamination device after the lamination base has been removed.

[0012] Figure 5 yes Figure 2 An exploded schematic diagram of the stacked device shown.

[0013] Figure 6 yes Figure 2 A schematic diagram of the stacking stage and two completion components of the stacking mechanism of the stacking device shown;

[0014] Figure 7 yes Figure 6 An exploded view of the stacking stage and two completion components shown.

[0015] Figure 8 is Figure 2 the structure diagram of the lamination base of the lamination mechanism of the lamination device shown in the figure, and the structure diagram of the lamination lifting assembly of the lamination mechanism of the lamination device shown in the figure;

[0016] Figure 9 is Figure 2 the structure diagram of the first pressing knife assembly of the first pressing knife mechanism of the lamination mechanism of the lamination device shown in the figure;

[0017] Figure 10 is Figure 2 the structure diagram of the second pressing knife assembly of the first pressing knife mechanism of the lamination mechanism of the lamination device shown in the figure;

[0018] Figure 11 is Figure 2 the structure diagram of the lamination mechanism, the left hot cutter mechanism and the right hot cutter mechanism of the lamination device shown in the figure;

[0019] Figure 12 is Figure 11 the structure diagram of the right hot cutter mechanism shown in the figure;

[0020] Figure 13 is Figure 12 the exploded view of the right hot cutter mechanism shown in the figure;

[0021] Figure 14 is the structure diagram of the two sides of the battery cell after the edge is sealed. DETAILED DESCRIPTION

[0022] The concept, specific structure and generated technical effects of the present application will be described clearly and completely in combination with the embodiments and the drawings, so as to fully understand the purpose, features and effects of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all the embodiments, and other embodiments obtained by those skilled in the art without creative labor based on the embodiments of the present application all belong to the scope of protection of the present application. In addition, all the coupling / connection relations involved in the patent do not mean that the components are directly connected, but means that a better coupling structure can be composed by adding or reducing coupling auxiliary components according to the specific implementation situation. The technical features in the present application can be combined interactively without mutual contradiction and conflict.

[0023] Please refer to Figures 2 to 5 , an embodiment of the present application provides a lamination device, which comprises a lamination base 10, a lamination mechanism arranged at the top end of the lamination base 10, a left hot cutter mechanism 80 and a right hot cutter mechanism 90.

[0024] In combination with Figures 6 to 8As shown, the laminating mechanism comprises a laminating base 20 arranged at the top end of the laminating base 10 and a laminating table 30 arranged at the top end of the laminating base 20.

[0025] In this embodiment, the top end of the laminating base 20 is provided with two laminating pillar groups arranged opposite to each other in front and back, and the bottom end of the laminating table 30 is provided with two laminating sliding plates 314 arranged opposite to each other in front and back, the two laminating sliding plates 314 are respectively arranged on the outer side (the side away from the two laminating pillar groups) of the two laminating pillar groups, and a laminating connecting plate 315 is arranged between the two laminating sliding plates 314 (see Figure 4 ). The laminating mechanism further comprises a laminating lifting assembly 40, which is used to drive the laminating connecting plate 315 to move up and down, so as to drive the laminating table 30 to move up and down through the two laminating sliding plates 314, and thus the height position of the laminating table 30 can be adjusted.

[0026] The laminating pillar group comprises a plurality of, for example, three laminating pillars 21 arranged in sequence and spaced apart from left to right, and the two laminating sliding plates 314 are respectively connected with the outer side of the laminating pillars 21 of the corresponding laminating pillar group. Specifically, the outer side of the laminating pillar 21 is provided with a laminating slide rail 211, the laminating slide rail 211 is slidably connected with a laminating slide block 212, and the laminating slide block 212 is arranged on the side of the laminating sliding plate 314 close to the laminating pillar 21.

[0027] In this embodiment, the laminating table 30 comprises two laminating supporting plates 311 and 312 which are abutted with each other. The laminating bottom plate 312 is located below the two laminating supporting plates 311, the bottom end of the laminating supporting plate 311 is provided with two laminating supporting plates 313 arranged in left and right, the two laminating supporting plates 313 are arranged at the top end of the laminating bottom plate 312, and the bottom end of the laminating bottom plate 312 is provided with the two laminating sliding plates 314.

[0028] The laminated lifting assembly 40 comprises a laminated motor 41, a laminated synchronous belt structure, a laminated lead screw 42 and a laminated nut 43. The laminated motor 41 is arranged at the top of the laminated base 20 through the motor seat, and part of the laminated motor 41 extends out of the avoiding hole at the top end of the laminated base 20. The laminated lead screw 42 is located to the left of the laminated motor 41, one end of the laminated lead screw 42 penetrates through the base through hole at the top end of the laminated base 20 and extends into the laminated base 20, the other end of the laminated lead screw 42 penetrates through the connecting plate through hole of the laminated connecting plate 315 and is located between the laminated bottom plate 312 and the laminated connecting plate 315, and the other end of the laminated lead screw 42 is located between the two laminated sliding plates 314. A laminated lead screw bearing seat is arranged at the top of the laminated base 20, and the laminated lead screw bearing seat is sleeved on the outer periphery of the laminated lead screw 42 to provide rotational support for the laminated lead screw 42. The laminated nut 43 is threadedly connected with the laminated lead screw 42 and arranged in the connecting plate through hole, and the output end of the laminated motor 41 is connected with one end of the laminated lead screw 42 through the laminated synchronous belt structure. The laminated motor 41 is used to drive the laminated lead screw 42 to rotate through the laminated synchronous belt structure, so as to drive the laminated nut 43 to move up and down, and further drive the laminated connecting plate 315 to move up and down.

[0029] The laminated synchronous belt structure is located in the laminated base 20, and comprises a laminated driving wheel, a laminated driven wheel and a laminated synchronous belt sleeved on the outer periphery of the laminated driving wheel and the laminated driven wheel. The laminated driving wheel is sleeved on the outer periphery of the output end of the laminated motor 41, and the laminated driven wheel is sleeved on the outer periphery of one end of the laminated lead screw 42. The laminated motor 41 is used to drive the laminated driving wheel to rotate, and under the action of the laminated driven wheel and the laminated synchronous belt, the laminated lead screw 42 can be driven to rotate.

[0030] The laminated supporting plate 311 is provided with a plurality of through holes penetrating through the top end and the bottom end thereof, and the plurality of through holes are arranged at intervals from front to back. In actual application, the plurality of through holes correspond to a plurality of lower clamping jaws of the blanking manipulator respectively.

[0031] The lamination mechanism further comprises two makeup assemblies corresponding to the two lamination support plates 311 respectively. The makeup assembly comprises a plurality of makeup blocks 51, a makeup mounting plate 52 and two makeup cylinders 53, the plurality of makeup blocks 51 correspond one-to-one to the plurality of through holes of the corresponding lamination support plate 311, the makeup block 51 cooperates with the corresponding through hole, in the process of lamination, through the cooperation of the makeup block 51 and the corresponding through hole, so that the diaphragm 1, the negative plate 2 and the positive plate 3 can be supported by the makeup block 51 and the lamination support plate 311 together, and the stability is good. The top end of the lamination support plate 313 is provided with a plurality of avoidance grooves 3131 corresponding to the plurality of through holes respectively, the plurality of avoidance grooves 3131 are communicated with the corresponding through holes respectively, and the avoidance groove 3131 plays an avoidance role for the downward movement of the corresponding makeup block 51. The makeup mounting plate 52 is located between the two lamination support plates 313 of the corresponding lamination support plate 311 and between the lamination bottom plate 312 and the corresponding lamination support plate 311, and the bottom end of the plurality of makeup blocks 51 is connected with the top end of the makeup mounting plate 52 respectively. The two makeup cylinders 53 are arranged at the bottom end of the lamination bottom plate 312 through a cylinder seat 531 respectively, the output end of the makeup cylinder 53 penetrates through the through hole of the lamination bottom plate 312 and is connected with the bottom end of the makeup mounting plate 52, and the two makeup cylinders 53 are used for driving the makeup mounting plate 52 to move up and down, so as to drive the plurality of makeup blocks 51 to move up and down, through the downward movement of the plurality of makeup blocks 51, so that the plurality of makeup blocks 51 can be separated from the corresponding through hole, at this time, the plurality of lower clamping jaws of the blanking manipulator can be inserted into the plurality of through holes of the two lamination support plates 311 respectively.

[0032] In the embodiment, the bottom end of the makeup block 51 is provided with a makeup connecting block, and the makeup block 51 is connected with the top end of the makeup mounting plate 52 through the makeup connecting block.

[0033] Combined Figure 9 and Figure 10 As shown in the figures, the lamination device further comprises a first pressure knife mechanism 60 and a second pressure knife mechanism 70 arranged opposite to each other. The first pressure knife mechanism 60 and the second pressure knife mechanism 70 each comprise a first pressure knife assembly 61 and a second pressure knife assembly 65, the first pressure knife assembly 61 of the first pressure knife mechanism 60 and the first pressure knife assembly 61 of the second pressure knife mechanism 70 are arranged opposite to each other, and the second pressure knife assembly 65 of the first pressure knife mechanism 60 and the second pressure knife assembly 65 of the second pressure knife mechanism 70 are arranged opposite to each other. The second pressure knife assembly 65 of the first pressure knife mechanism 60 and the second pressure knife assembly 65 of the second pressure knife mechanism 70 are respectively used for pressing the two ends of the diaphragm 1, the first pressure knife assembly 61 of the first pressure knife mechanism 60 is used for pressing one end of the first negative plate 2 close to the first pressure knife mechanism 60 and one end of the first positive plate 3 close to the first pressure knife mechanism 60, and the first pressure knife assembly 61 of the second pressure knife mechanism 70 is used for pressing one end of the last negative plate 2 close to the second pressure knife mechanism 70 and one end of the last positive plate 3 close to the second pressure knife mechanism 70.

[0034] The first pressing knife assembly 61 comprises a first pressing knife seat, a first front-back moving unit, a first pressing knife in-out plate 612 slidingly arranged at the top end of the first pressing knife seat, a plurality of first pressing knife mounting seats 614, and a plurality of first pressing knife units. In the embodiment, there are four first pressing knife mounting seats 614, and the number of first pressing knife units corresponds to the number of first pressing knife mounting seats 614.

[0035] The first pressing knife seat is located below the laminated plate table 30, and the laminated plate base 20 is located between the first pressing knife seat of the first pressing knife mechanism 60 and the first pressing knife seat of the second pressing knife mechanism 70. The first front-back moving unit is used to drive the first pressing knife in-out plate 612 to move forward and backward. The plurality of first pressing knife mounting seats 614 are sequentially and spacedly arranged at the top end of the first pressing knife in-out plate 612 from left to right, and the side of the plurality of first pressing knife mounting seats 614 away from the laminated plate base 20 is provided with a first pressing knife sliding plate 615. The plurality of first pressing knife units and the plurality of first pressing knife mounting seats 614 correspond one-to-one, and the laminated plate table 30 is located between the plurality of first pressing knife units of the first pressing knife mechanism 60 and the plurality of first pressing knife units of the second pressing knife mechanism 70. The first pressing knife unit comprises an L-shaped first pressing knife base 616, a first pressing knife cylinder 617, and a first pressing knife 618. The first pressing knife base 616 is arranged at the side of the first pressing knife sliding plate 615 away from the laminated plate base 20, the first pressing knife in-out plate 612 is located between the first pressing knife base 616 and the laminated plate base 20, the first pressing knife cylinder 617 is arranged at the top end of the first pressing knife base 616 through an L-shaped first pressing knife cylinder seat 6171, one end of the first pressing knife 618 is arranged at the top end of the first pressing knife cylinder 617 through a first pressing knife block 6172, the other end of the first pressing knife 618 extends towards the laminated plate table 30, and the first pressing knife 618 is located above the laminated plate table 30. The first pressing knife cylinder 617 is used to drive the first pressing knife 618 to move up and down. The forward and backward movement of the first pressing knife in-out plate 612 can drive the plurality of first pressing knife mounting seats 614 to move forward and backward, and in turn can drive the first pressing knife sliding plate 615 to move forward and backward. The forward and backward movement of the first pressing knife sliding plate 615 can drive the first pressing knife base 616, the first pressing knife cylinder 617, and the first pressing knife 618 of the plurality of first pressing knife units to move forward and backward.

[0036] In this embodiment, the first knife pressing seat includes two first knife pressing heightening blocks 6111 and a first knife pressing mounting plate 6112 which are arranged opposite to each other left and right. Both of the two first knife pressing heightening blocks 6111 are arranged at the top end of the lamination base 10. The first knife pressing mounting plate 6112 is arranged at the top ends of the two first knife pressing heightening blocks 6111. Two first knife pressing support plates 6113 which are arranged opposite to each other left and right are provided at the top end of the first knife pressing mounting plate 6112. The first knife advancing and retreating plate 612 is slidably arranged at the top ends of the two first knife pressing support plates 6113. Specifically, a slide rail is provided at the top end of the first knife pressing support plate 6113, and a slider which is slidably engaged with the slide rail is arranged at the bottom end of the first knife advancing and retreating plate 612.

[0037] The first front and rear moving unit includes a first front and rear motor 6131, a first front and rear synchronous belt structure, a first front and rear screw rod 6132 and a first front and rear nut 6133. The first front and rear motor 6131 is located between the two first knife pressing heightening blocks 6111 and is arranged inside one of the first knife pressing heightening blocks 6111 (the inner side is the side where the two first knife pressing heightening blocks 6111 are close to each other) through a first front and rear motor seat. In this embodiment, the first front and rear motor 6131 of the first knife pressing mechanism 60 is arranged inside the first knife pressing heightening block 6111 on the left through a first front and rear motor seat, and the first front and rear motor 6131 of the second knife pressing mechanism 70 is arranged inside the first knife pressing heightening block 6111 on the right through a first front and rear motor seat. The two ends of the first front and rear screw rod 6132 are rotatably arranged at the top end of the first knife pressing mounting plate 6112 through two first front and rear bearing seats 61321 respectively. The first front and rear motor 6131 is connected to one end of the first front and rear screw rod 6132 through the first front and rear synchronous belt structure. The first front and rear motor 6131 is used to drive the first front and rear screw rod 6132 to rotate through the first front and rear synchronous belt structure. The first front and rear nut 6133 is in threaded fit with the first front and rear screw rod 6132, and the top end of the first front and rear nut 6133 is connected to the bottom end of the first knife advancing and retreating plate 612. The rotation of the first front and rear screw rod 6132 can drive the first front and rear nut 6133 to move back and forth, so as to drive the first knife advancing and retreating plate 612 to move back and forth. In this embodiment, a first front and rear connecting part is provided at the top end of the first front and rear nut 6133. The first front and rear connecting part is in the shape of a "hui" character. The first front and rear connecting part is connected to the first knife advancing and retreating plate 612. A first front and rear supporting part 61322 is provided between the top ends of the two first front and rear bearing seats 61321. The first front and rear connecting part is sleeved on the outer periphery of the first front and rear supporting part 61322. The back and forth movement of the first front and rear nut 6133 can drive the first front and rear connecting part to move back and forth, so as to drive the first knife advancing and retreating plate 612 to move back and forth. The provided first front and rear supporting part 61322 can provide support for the back and forth movement of the first front and rear connecting part, and improve the smoothness of the movement of the first front and rear connecting part.

[0038] The first pressing knife mounting plate 6112 is located between the first front and rear synchronous belt structure and the laminated base 20. The first front and rear synchronous belt structure includes a first front and rear driving wheel, a first front and rear driven wheel, and a first front and rear synchronous belt sleeved on the outer periphery of the first front and rear driving wheel and the first front and rear driven wheel. The first front and rear driving wheel is sleeved on the outer periphery of the output end of the first front and rear motor 6131. The first front and rear driven wheel is sleeved on one end of the first front and rear lead screw 6132. The first front and rear motor 6131 is used to drive the first front and rear driving wheel to rotate, and under the action of the first front and rear driven wheel and the first front and rear synchronous belt, the first front and rear lead screw 6132 can be driven to rotate. The first front and rear driving wheel, the first front and rear driven wheel, and the first front and rear synchronous belt are accommodated in the first front and rear protective cover 6134. The first front and rear protective cover 6134 is connected to the side of the first pressing knife mounting plate 6112 away from the laminated base 20. The first front and rear protective cover 6134 is arranged to protect the first front and rear driving wheel, the first front and rear driven wheel, and the first front and rear synchronous belt.

[0039] In the embodiment, the side of the plurality of first pressing knife mounting seats 614 away from the laminated base 20 is slidably provided with a first pressing knife sliding plate 615. Specifically, the side of the first pressing knife mounting seat 614 away from the laminated base 20 is provided with a sliding rail. The sliding rail slidably cooperates with a sliding block. The sliding block is arranged on the side of the first pressing knife sliding plate 615 close to the laminated base 20.

[0040] The first pressing knife assembly 61 further includes a first up and down moving unit for driving the first pressing knife sliding plate 615 to move up and down. The up and down movement of the first pressing knife sliding plate 615 can drive the first pressing knife base 616, the first pressing knife cylinder 617, and the first pressing knife 618 of the plurality of first pressing knife units to move up and down. Through the up and down movement of the first pressing knife 618, the height position of the first pressing knife 618 can be adjusted to adapt to the height position of the laminated board table 30.

[0041] The first up-down moving unit comprises a first up-down motor 6191, a first up-down synchronous belt structure, a first up-down screw rod 6192 and a first up-down nut 6194. The first up-down motor 6191 penetrates through a first hole position of the first pressing tool advancing and retreating plate 612, and the first up-down motor 6191 is fixed at the bottom end of the first pressing tool advancing and retreating plate 612 through a first up-down motor seat. The first up-down screw rod 6192 of the first pressing tool mechanism 60 is located at the left side of the first up-down motor 6191, and the first up-down screw rod 6192 of the second pressing tool mechanism 70 is located at the right side of the first up-down motor 6191. One end of the first up-down screw rod 6192 is rotatably arranged at the top end of the first pressing tool mounting plate 6112 through a first up-down bearing seat, and the other end of the first up-down screw rod 6192 penetrates through a second hole position of the first pressing tool advancing and retreating plate 612 and is located above the first pressing tool advancing and retreating plate 612, and a first up-down rotating bearing is arranged in the second hole position and is sleeved on the outer periphery of the first up-down screw rod 6192 to provide rotating support for the first up-down screw rod 6192. The first up-down motor 6191 is connected with the first up-down screw rod 6192 through the first up-down synchronous belt structure, and the first up-down motor 6191 is used to drive the first up-down screw rod 6192 to rotate through the first up-down synchronous belt structure. The first up-down nut 6194 is threadedly matched with the first up-down screw rod 6192 and is located above the first pressing tool advancing and retreating plate 612, and the first up-down nut 6194 is connected with the side of the first pressing tool sliding plate 615 close to the laminated base 20. The rotation of the first up-down screw rod 6192 can drive the first up-down nut 6194 to move up and down, so as to drive the first pressing tool sliding plate 615 to move up and down.

[0042] In the embodiment, the top end of the first pressing tool advancing and retreating plate 612 is provided with a first screw rod mounting cover 6193, the first up-down nut 6194 is located in the first screw rod mounting cover 6193, the other end of the first up-down screw rod 6192 extends into the first screw rod mounting cover 6193 and penetrates through a first mounting hole at the top end of the first screw rod mounting cover 6193 and is located above the first screw rod mounting cover 6193, and a first mounting bearing seat is arranged at the top of the first screw rod mounting cover 6193 and is sleeved on the outer periphery of the first up-down screw rod 6192 to provide rotating support for the first up-down screw rod 6192.

[0043] The first up-down synchronous belt structure is located between the first pressing tool mounting plate 6112 and the first pressing tool advancing and retreating plate 612, and comprises a first up-down driving wheel, a first up-down driven wheel and a first up-down synchronous belt sleeved on the outer periphery of the first up-down driving wheel and the first up-down driven wheel. The first up-down driving wheel is sleeved on the outer periphery of the output end of the first up-down motor 6191, the first up-down driven wheel is sleeved on the outer periphery of the first up-down screw rod 6192, and the first up-down motor 6191 is used to drive the first up-down driving wheel to rotate, so as to drive the first up-down screw rod 6192 to rotate under the action of the first up-down driven wheel and the first up-down synchronous belt.

[0044] The second pressing knife assembly 65 comprises a second pressing knife seat, a second front-back moving unit, a second pressing knife in-out plate 652 slidingly arranged at the top end of the second pressing knife seat, a plurality of second pressing knife mounting seats 653, and a plurality of second pressing knife units. The number of the second pressing knife mounting seats 653 and the second pressing knife units corresponds to the number of the first pressing knife mounting seats 614, and is also four respectively.

[0045] The first pressing knife seat is located between the second pressing knife seat and the lamination base 20. The first pressing knife in-out plate 612 is located between the second pressing knife in-out plate 652 and the lamination base 20. The second front-back moving unit is used to drive the second pressing knife in-out plate 652 to move forward and backward. The plurality of second pressing knife mounting seats 653 are sequentially and spacedly arranged at the top end of the second pressing knife in-out plate 652 from left to right, and the side of the plurality of second pressing knife mounting seats 653 close to the lamination base 20 is provided with a second pressing knife sliding plate 654. The second pressing knife sliding plate 654 is opposite to the first pressing knife sliding plate 615. The plurality of second pressing knife units and the plurality of second pressing knife mounting seats 653 correspond to each other, the plurality of second pressing knife units of the first pressing knife mechanism 60 and the plurality of first pressing knife units of the first pressing knife mechanism 60 are sequentially and alternately spaced from right to left, and the plurality of second pressing knife units of the second pressing knife mechanism 70 and the plurality of first pressing knife units of the second pressing knife mechanism 70 are sequentially and alternately spaced from left to right. The second pressing knife unit comprises an L-shaped second pressing knife base 656, a second pressing knife cylinder 657, and a second pressing knife 658. The second pressing knife base 656 is arranged at the side of the second pressing knife sliding plate 654 close to the lamination base 20, and the second pressing knife base 656 is located between the second pressing knife in-out plate 652 and the lamination base 20. The second pressing knife cylinder 657 is arranged at the top end of the second pressing knife base 656 through an L-shaped second pressing knife cylinder seat 6571, one end of the second pressing knife 658 is arranged at the top end of the second pressing knife cylinder 657 through a second pressing knife block 6572, the other end of the second pressing knife 658 extends towards the lamination table 30, and the second pressing knife 658 is located above the lamination table 30. The second pressing knife cylinder 657 is used to drive the second pressing knife 658 to move up and down. The forward and backward movement of the second pressing knife in-out plate 652 can drive the plurality of second pressing knife mounting seats 653 to move forward and backward, and in turn can drive the second pressing knife sliding plate 654 to move forward and backward. The forward and backward movement of the second pressing knife sliding plate 654 can drive the second pressing knife base 656, the second pressing knife cylinder 657, and the second pressing knife 658 of the plurality of second pressing knife units to move forward and backward.

[0046] In the embodiment, the second pressing tool seat comprises a second pressing tool mounting plate 6511 arranged at the top end of the laminated base 10 and two second pressing tool pad blocks 6512 arranged oppositely left and right. The two second pressing tool pad blocks 6512 are arranged at the top end of the second pressing tool mounting plate 6511, and the top end of each of the two second pressing tool pad blocks 6512 is provided with two second pressing tool support plates 6513 arranged oppositely left and right. A second pressing tool in-out plate 652 is slidingly arranged at the top end of the two second pressing tool support plates 6513. Specifically, the top end of the second pressing tool support plate 6513 is provided with a sliding rail, the sliding rail is slidingly matched with a sliding block, and the sliding block is arranged at the bottom end of the second pressing tool in-out plate 652.

[0047] The second forward and backward moving unit includes a second forward and backward motor 6551, a second forward and backward synchronous belt structure, a second forward and backward screw rod 6552, and a second forward and backward nut 6553. The second forward and backward motor 6551 is arranged outside one of the second knife pressing heightening blocks 6512 through a second forward and backward motor seat (the outside refers to the side where the two second knife pressing heightening blocks 6512 are away from each other). In this embodiment, the second forward and backward motor 6551 of the first knife pressing mechanism 60 is arranged outside the second knife pressing heightening block 6512 on the right through a second forward and backward motor seat, and the second forward and backward motor 6551 of the second knife pressing mechanism 70 is arranged outside the second knife pressing heightening block 6512 on the left through a second forward and backward motor seat. Both ends of the second forward and backward screw rod 6552 are rotatably arranged inside one of the second knife pressing heightening blocks 6512 through two second forward and backward bearing seats 65521 (the inside refers to the side where the two second knife pressing heightening blocks 6512 are close to each other). In this embodiment, both ends of the second forward and backward screw rod 6552 of the first knife pressing mechanism 60 are rotatably arranged inside the second knife pressing heightening block 6512 on the right through two second forward and backward bearing seats 65521, and both ends of the second forward and backward screw rod 6552 of the second knife pressing mechanism 70 are rotatably arranged inside the second knife pressing heightening block 6512 on the left through two second forward and backward bearing seats 65521. The second forward and backward motor 6551 is connected to one end of the second forward and backward screw rod 6552 through a second forward and backward synchronous belt structure, and the second forward and backward motor 6551 is used to drive the second forward and backward screw rod 6552 to rotate through the second forward and backward synchronous belt structure. The second forward and backward nut 6553 is in threaded cooperation with the second forward and backward screw rod 6552, and the second forward and backward nut 6553 is connected to the bottom end of the second knife pressing advancing and retreating plate 652. The rotation of the second forward and backward screw rod 6552 can drive the second forward and backward nut 6553 to move forward and backward, thereby driving the second knife pressing advancing and retreating plate 652 to move forward and backward. In this embodiment, a second forward and backward connecting member 6554 is provided at the top end of the second forward and backward nut 6553. The second forward and backward connecting member 6554 is in the shape of a "hui" character and is connected to the bottom end of the second knife pressing advancing and retreating plate 652. A second forward and backward supporting member 65522 is provided between the top ends of the two second forward and backward bearing seats 65521. The second forward and backward connecting member 6554 is sleeved on the outer periphery of the second forward and backward supporting member 65522. The provided second forward and backward supporting member 65522 can provide support for the forward and backward movement of the first forward and backward connecting member 6554, improving the smoothness of the movement of the second forward and backward connecting member 6554.

[0048] The second front and rear synchronous belt structure is located between the two second pressing knife pad blocks 6512 and the laminated base 20, and comprises a second front and rear driving wheel, a second front and rear driven wheel, and a second front and rear synchronous belt sleeved on the outer circumferences of the second front and rear driving wheel and the second front and rear driven wheel. The second front and rear driving wheel is sleeved on the outer circumference of the output end of the second front and rear motor 6551, and the second front and rear driven wheel is sleeved on the outer circumference of one end of the second front and rear lead screw 6552. The second front and rear motor 6551 is used to drive the second front and rear driving wheel to rotate, and under the action of the second front and rear driven wheel and the second front and rear synchronous belt, the second front and rear lead screw 6552 can be driven to rotate. The second front and rear driving wheel, the second front and rear driven wheel, and the second front and rear synchronous belt are accommodated in the second front and rear protective cover 6555 (see Figure 2 、 Figure 5 ) The second front and rear protective cover 6555 of the first pressing knife mechanism 60 is connected to the end of the second pressing knife pad block 6512 located on the right side and close to the laminated base 20. The second front and rear protective cover 6555 of the second pressing knife mechanism 70 is connected to the side of the second pressing knife pad block 6512 located on the left side and close to the laminated base 20. The second front and rear protective cover 6555 is arranged to protect the second front and rear driving wheel, the second front and rear driven wheel, and the second front and rear synchronous belt.

[0049] In this embodiment, the side of the plurality of second pressing knife mounting seats 653 close to the laminated base 20 is slidably provided with a second pressing knife sliding plate 654. Specifically, the side of the second pressing knife mounting seat 653 close to the laminated base 20 is provided with a sliding rail, and the sliding rail is slidably matched with a sliding block, and the sliding block is arranged on the side of the second pressing knife sliding plate 654 away from the laminated base 20.

[0050] The second pressing knife assembly 65 further comprises a second up and down moving unit for driving the second pressing knife sliding plate 654 to move up and down. The up and down movement of the second pressing knife sliding plate 654 can drive the second pressing knife base 656, the second pressing knife cylinder 657, and the second pressing knife 658 of the plurality of second pressing knife units to move up and down. Through the up and down movement of the second pressing knife 658, the height position of the second pressing knife 658 can be adjusted to adapt to the height position of the laminated base 30.

[0051] The second up-down moving unit comprises a second up-down motor 6591, a second up-down synchronous belt structure, a second up-down screw rod 6592 and a second up-down nut. The second up-down motor 6591 penetrates through a third hole position of the second presser blade advancing and retreating plate 652, and the second up-down motor 6591 is fixed at the bottom end of the second presser blade advancing and retreating plate 652 through a second up-down motor seat. The second up-down screw rod 6592 of the first presser blade mechanism 60 is located at the left side of the second up-down motor 6591, and the second up-down screw rod 6592 of the second presser blade mechanism 70 is located at the right side of the second up-down motor 6591. One end of the second up-down screw rod 6592 is rotatably arranged at the inner side of one of the second presser blade support plates 6513 through a second up-down screw rod bearing seat. In this embodiment, one end of the second up-down screw rod 6592 of the first presser blade mechanism 60 is rotatably arranged at the inner side of the left second presser blade support plate 6513 through a second up-down screw rod bearing seat, and one end of the second up-down screw rod 6592 of the second presser blade mechanism 70 is rotatably arranged at the inner side of the right second presser blade support plate 6513 through a second up-down screw rod bearing seat. The other end of the second up-down screw rod 6592 penetrates through a fourth hole position of the second presser blade advancing and retreating plate 652 and is located above the second presser blade advancing and retreating plate 652, and a second up-down rotating bearing is arranged in the fourth hole position and is sleeved on the outer periphery of the second up-down screw rod 6592 to provide rotating support for the second up-down screw rod 6592. The second up-down motor 6591 is connected with the second up-down screw rod 6592 through the second synchronous belt structure, and the second up-down motor 6591 is used to drive the second up-down screw rod 6592 to rotate through the second synchronous belt structure. The second up-down nut is threadedly connected with the second up-down screw rod 6592 and is located above the second presser blade advancing and retreating plate 652, and the second up-down nut is connected with the side of the second presser blade sliding plate 654 away from the laminated base 20. The rotation of the second up-down screw rod 6592 can drive the second up-down nut to move up and down, so as to drive the second presser blade sliding plate 654 to move up and down.

[0052] In this embodiment, the top end of the second presser blade advancing and retreating plate 652 is provided with a second screw rod mounting cover 6593, the second up-down nut is located in the second screw rod mounting cover 6593, the other end of the second up-down screw rod 6592 extends into the second screw rod mounting cover 6593, penetrates through a second mounting hole at the top end of the second screw rod mounting cover 6593 and is located above the second screw rod mounting cover 6593, and a second mounting bearing seat is arranged at the top of the second screw rod mounting cover 6593 and is sleeved on the outer periphery of the second up-down screw rod 6592 to provide rotating support for the second up-down screw rod 6592.

[0053] The second upper and lower synchronous belt structure is located below the second pressure knife advancing and retreating plate 652 and between the two second pressure knife pad elevating blocks 6513. The second upper and lower synchronous belt structure comprises a second upper and lower driving wheel, a second upper and lower driven wheel, and a second upper and lower synchronous belt sleeved on the outer periphery of the second upper and lower driving wheel and the second upper and lower driven wheel. The second upper and lower driving wheel is sleeved on the outer periphery of the output end of the second upper and lower motor 6591. The second upper and lower driven wheel is sleeved on the outer periphery of the second upper and lower lead screw 6592. The second upper and lower motor 6591 is used to drive the second upper and lower driving wheel to rotate. Under the action of the second upper and lower driven wheel and the second upper and lower synchronous belt, the second upper and lower lead screw 6592 can be driven to rotate.

[0054] In combination Figures 11 to 13 As shown, the left hot cutter mechanism 80 and the right hot cutter mechanism 90 are arranged in left-right opposition. The lamination mechanism is located between the left hot cutter mechanism 80 and the right hot cutter mechanism 90. The left hot cutter mechanism 80 and the right hot cutter mechanism 90 each comprise two hot cutter supports 80a arranged in front-rear opposition and a hot cutter assembly. The two hot cutter supports 80a are respectively arranged at the top end of the lamination base 10. The hot cutter assembly is arranged at the top end of the two hot cutter supports 80a, and the two hot cutter supports 80a provide mounting support for the hot cutter assembly. The lamination table 30 is located between the hot cutter assembly of the left hot cutter mechanism 80 and the hot cutter assembly of the right hot cutter mechanism 90. The hot cutter assembly of the left hot cutter mechanism 80 and the hot cutter assembly of the right hot cutter mechanism 90 are respectively used to cut the separator 1 and are respectively used to edge seal the two sides of the battery cell.

[0055] Specifically, the hot cutting knife assembly comprises two hot cutting mounting plates 81 arranged opposite to each other, two hot cutting sliding plates 82 arranged opposite to each other, two hot cutting lifting cylinders 84, a hot cutting connecting plate 83, a hot cutting wire 85 and a hot cutting tensioning cylinder 86. The two hot cutting mounting plates 81 are respectively arranged at the top ends of the two hot cutting supports 80a, the two hot cutting sliding plates 82 are respectively arranged on the sides of the two hot cutting mounting plates 81 close to the laminating table 30 and partially protrude from the ends of the two hot cutting mounting plates 81 close to the center of the laminating table 30. Specifically, the side of the hot cutting mounting plate 81 close to the laminating table 30 is provided with a hot cutting sliding rail 811, the hot cutting sliding rail 811 is slidably connected with a hot cutting sliding block 812, and the hot cutting sliding block 812 is arranged on the side of the corresponding hot cutting sliding plate 82 away from the laminating table 30. The two hot cutting lifting cylinders 84 are respectively arranged on the sides of the two hot cutting mounting plates 81 close to the laminating table 30, and the output ends of the two hot cutting lifting cylinders 84 are respectively connected with the top ends of the two hot cutting sliding plates 82 through a hot cutting connecting block 841. The two hot cutting lifting cylinders 84 are respectively used to drive the two hot cutting sliding plates 82 to move up and down. The hot cutting connecting plate 83 is located between the two hot cutting mounting plates 81, and the two ends of the hot cutting connecting plate 83 are respectively arranged at the bottom ends of the two hot cutting sliding plates 82. The hot cutting wire 85 is located above the hot cutting connecting plate 83 and below the top end of the laminating table 30. One end of the hot cutting wire 85 is provided with a first hot cutting mounting block 851, and the other end of the hot cutting wire 85 is provided with a second hot cutting mounting block 852. The laminating table 30 is located between the first hot cutting mounting block 851 and the second hot cutting mounting block 852, and the first hot cutting mounting block 851 and the second hot cutting mounting block 852 are respectively arranged at the top end of the hot cutting connecting plate 83, so that the first hot cutting mounting block 851 and the second hot cutting mounting block 852 can be supported by the hot cutting connecting plate 83. The first hot cutting mounting block 851 is connected with the side of one of the two hot cutting sliding plates 82 close to the laminating table 30 through a hot cutting adapter plate 853, the second hot cutting mounting block 852 is connected with the output end of the hot cutting tensioning cylinder 86, and the hot cutting tensioning cylinder 86 is arranged on the side of the other hot cutting sliding plate 82 close to the laminating table 30. The hot cutting tensioning cylinder 86 is used to drive the second hot cutting mounting block 852 to move back and forth. The up-and-down movement of the two hot cutting sliding plates 82 can drive the hot cutting connecting plate 83, the hot cutting adapter plate 853, the first hot cutting mounting block 851, the second hot cutting mounting block 852, the hot cutting tensioning cylinder 86 and the hot cutting wire 85 to move up and down. The two ends of the hot cutting wire 85 are respectively used to be electrically connected with the control system. The hot cutting wire 85 generates heat after being electrified, and is used to cut the diaphragm 1 and to hem the edge of the diaphragm 1. The back-and-forth movement of the second hot cutting mounting block 852 can drive the other end of the hot cutting wire 85 to move back and forth, so that the hot cutting wire 85 can be tensioned, and the uneven cutting of the diaphragm 1 can be avoided when the diaphragm 1 is cut by the hot cutting wire 85, thereby improving the quality of the battery cell.

[0056] In this embodiment, the first hot cutting mounting block 851 of the left hot cutting knife mechanism 80 is connected to the side of the hot cutting sliding plate 82 located at the rear and close to the laminating table 30 through the hot cutting adapter plate 853, the hot cutting tension cylinder 86 of the left hot cutting knife mechanism 80 is arranged at the side of the hot cutting sliding plate 82 located at the front and close to the laminating table 30, the first hot cutting mounting block 851 of the right hot cutting knife mechanism 90 is connected to the side of the hot cutting sliding plate 82 located at the front and close to the laminating table 30 through the hot cutting adapter plate 853, and the hot cutting tension cylinder 86 of the right hot cutting knife mechanism 90 is arranged at the side of the hot cutting sliding plate 82 located at the rear and close to the laminating table 30.

[0057] In actual laminating, S1, the first layer of separator 1 is stacked on the top of the two laminating supporting plates 311 of the laminating table 30 and the multiple filling blocks 51 of the two filling assemblies from left to right.

[0058] S2, the two ends of the first layer of separator 1 are respectively pressed by the second pressing knife assemblies 65 of the first pressing knife mechanism 60 and the second pressing knife assemblies 65 of the second pressing knife mechanism 70 to prevent the separator 1 from moving, so as to facilitate cutting the separator 1: first, the multiple second pressing knife units of the first pressing knife mechanism 60 are driven by the second front and rear moving units to move towards the laminating table 30, and the multiple second pressing knife units of the second pressing knife mechanism 70 are driven by the second front and rear moving units to move towards the laminating table 30, until the other ends of the second pressing knives 658 of the multiple second pressing knife units of the first pressing knife mechanism 60 and the other ends of the second pressing knives 658 of the multiple second pressing knife units of the second pressing knife mechanism 70 are respectively located above the two ends of the first layer of separator 1, then the corresponding second pressing knives 658 are driven downward by the second pressing knife cylinders 657 of the first pressing knife mechanism 60 and the second pressing knife cylinders 657 of the second pressing knife mechanism 70, so that the other ends of the second pressing knives 658 of the multiple second pressing knife units of the first pressing knife mechanism 60 and the other ends of the second pressing knives 658 of the multiple second pressing knife units of the second pressing knife mechanism 70 respectively press the two ends of the first layer of separator 1.

[0059] S3, the first layer of separator 1 is cut by the hot cutting knife assembly of the left hot cutting knife mechanism 80: first, the hot cutting wire 85 is driven upward by the two hot cutting lifting cylinders 84, so that the first layer of separator 1 can be cut by the hot cutting wire 85, and then the hot cutting wire 85 is driven downward to the initial position by the two hot cutting lifting cylinders 84.

[0060] S4, multiple negative plates 2, for example, three negative plates 2, are stacked on the first layer of separator 1 by the negative plate manipulator, and the multiple negative plates 2 are arranged in sequence from front to back with a certain interval, and the first negative plate 2 and the last negative plate 2 do not cover the two ends of the first layer of separator 1.

[0061] S5, the first pressure knife assembly 61 of the first pressure knife mechanism 60 is pressed against the end of the first negative plate 2 close to the first pressure knife mechanism 60, and the first pressure knife assembly 61 of the second pressure knife mechanism 70 is pressed against the end of the last negative plate 2 close to the second pressure knife mechanism 70, so as to facilitate the second pressure knife assembly 65 of the first pressure knife mechanism 60 and the second pressure knife assembly 65 of the second pressure knife mechanism 70 to loosen the two ends of the first layer of separators 1: first, the first front and rear moving unit of the first pressure knife mechanism 60 drives multiple first pressure knife units to move towards the direction close to the laminated plate table 30, and the first front and rear moving unit of the second pressure knife mechanism 70 drives multiple first pressure knife units to move towards the direction close to the laminated plate table 30, until the other end of the first pressure knife 618 of the first pressure knife mechanism 60 is located above the end of the first negative plate 2 close to the first pressure knife mechanism 60, and the other end of the first pressure knife 618 of the second pressure knife mechanism 70 is located above the end of the last negative plate 2 close to the second pressure knife mechanism 70, then the first pressure knife cylinder 617 of the first pressure knife mechanism 60 drives the corresponding first pressure knife 618 to move downward, and the first pressure knife cylinder 617 of the second pressure knife mechanism 70 drives the corresponding first pressure knife 618 to move downward, so that the other end of the first pressure knife 618 of multiple first pressure knife units of the first pressure knife mechanism 60 is pressed against the end of the first negative plate 2 close to the first pressure knife mechanism 60, and the other end of the first pressure knife 618 of multiple first pressure knife units of the second pressure knife mechanism 70 is pressed against the end of the last negative plate 2 close to the second pressure knife mechanism 70.

[0062] At the same time, the second pressure knife assembly 65 of the first pressure knife mechanism 60 and the second pressure knife assembly 65 of the second pressure knife mechanism 70 loosen the two ends of the first layer of separators 1 respectively: first, the second pressure knife cylinder 657 of the first pressure knife mechanism 60 drives the corresponding second pressure knife 658 to move upward to separate the second pressure knife 658 from the first layer of separators 1, and the second pressure knife cylinder 657 of the second pressure knife mechanism 70 drives the corresponding second pressure knife 658 to move upward to separate the second pressure knife 658 from the first layer of separators 1, then the second front and rear moving unit of the first pressure knife mechanism 60 drives multiple second pressure knife units to move away from the laminated plate table 30 to the initial position to make the second pressure knife 658 of the second pressure knife unit move out of the first negative plate 2 and the first layer of separators 1, and the second front and rear moving unit of the second pressure knife mechanism 70 drives multiple second pressure knife units to move away from the laminated plate table 30 to the initial position to make the second pressure knife 658 of the second pressure knife unit move out of the last negative plate 2 and the first layer of separators 1.

[0063] S6, the second layer of separators 1 is stacked on multiple negative plates 2 from right to left.

[0064] S7, press the two ends of the second layer of diaphragm 1 by the second pressure knife assembly 65 of the first pressure knife mechanism 60 and the second pressure knife assembly 65 of the second pressure knife mechanism 70 respectively, facilitate cutting the diaphragm 1 and facilitate loosening the end of the first negative plate 2 close to the first pressure knife mechanism 60 by the first pressure knife assembly 61 of the first pressure knife mechanism 60 and loosening the end of the last negative plate 2 close to the second pressure knife mechanism 70 by the first pressure knife assembly 61 of the second pressure knife mechanism 70: the action of this step is the same as that of step S2.

[0065] At the same time, loosen the end of the first negative plate 2 close to the first pressure knife mechanism 60 by the first pressure knife assembly 61 of the first pressure knife mechanism 60 and loosen the end of the last negative plate 2 close to the second pressure knife mechanism 70 by the first pressure knife assembly 61 of the second pressure knife mechanism 70: first, drive the corresponding first pressure knife 618 of the first pressure knife cylinder 617 of the first pressure knife mechanism 60 to move upward to make the first pressure knife 618 separate from the end of the first negative plate 2 close to the first pressure knife mechanism 60, and the corresponding first pressure knife 618 of the first pressure knife cylinder 617 of the second pressure knife mechanism 70 moves upward to make the first pressure knife 618 separate from the end of the last negative plate 2 close to the second pressure knife mechanism 70, then drive the first pressure knife unit to move to the initial position in the direction away from the laminated plate table 30 by the first front and back moving unit of the first pressure knife mechanism 60 to make the first pressure knife 618 of the first pressure knife unit move out of the first negative plate 2 and the second layer of diaphragm 1, and drive the first pressure knife unit to move to the initial position in the direction away from the laminated plate table 30 by the first front and back moving unit of the second pressure knife mechanism 70 to make the first pressure knife 618 of the first pressure knife unit move out of the last negative plate 2 and the second layer of diaphragm 1.

[0066] S8, cut the second layer of diaphragm 1 by the hot cutting knife assembly of the right hot cutting knife mechanism 90: first, drive the hot cutting wire 85 to move upward by the two hot cutting lifting cylinders 84, so that the second layer of diaphragm 1 can be cut by the hot cutting wire 85, and then drive the hot cutting wire 85 to move downward to the initial position by the two hot cutting lifting cylinders 84.

[0067] S9, stack a plurality of positive plates 3, for example, three positive plates 3, on the second layer of diaphragm 1 by the positive plate manipulator, the plurality of positive plates 3 are arranged in sequence from front to back, the first positive plate 3 and the last positive plate 3 do not cover the two ends of the second layer of diaphragm 1, and each positive plate 3 corresponds to a negative plate 2.

[0068] S10, press the end of the first positive plate 3 close to the first pressing knife mechanism 60 by the first pressing knife assembly 61 of the first pressing knife mechanism 60, press the end of the last positive plate 3 close to the second pressing knife mechanism 70 by the first pressing knife assembly 61 of the second pressing knife mechanism 70, at the same time, release the two ends of the second layer of diaphragm 1 by the second pressing knife assembly 65 of the first pressing knife mechanism 60 and the second pressing knife assembly 65 of the second pressing knife mechanism 70 respectively: the action of step S10 is the same as that of step S5.

[0069] S11, the third layer of diaphragm 1 is stacked on the plurality of positive plates 3 from left to right.

[0070] S12, press the two ends of the third layer of diaphragm 1 by the second pressing knife assembly 65 of the first pressing knife mechanism 60 and the second pressing knife assembly 65 of the second pressing knife mechanism 70 respectively, at the same time, release the end of the first positive plate 3 close to the first pressing knife mechanism 60 by the first pressing knife assembly 61 of the first pressing knife mechanism 60, and release the end of the last positive plate 3 close to the second pressing knife mechanism 70 by the first pressing knife assembly 61 of the second pressing knife mechanism 70: the action of step S12 is the same as that of step S7.

[0071] S13, repeat steps S3-S12 until the last layer of diaphragm 1 is stacked, so that the battery cell is obtained, as shown in Figure 1 .

[0072] S14, edge sealing of the two sides of the battery cell is carried out by the hot cutting knife assembly of the left hot cutting knife mechanism 80 and the hot cutting knife assembly of the right hot cutting knife mechanism 90: the hot cutting wire 85 is driven upward by the two hot cutting lifting cylinders 84 of the left hot cutting knife mechanism 80 and the two hot cutting lifting cylinders 84 of the right hot cutting knife mechanism 90, in the process of upward movement of the hot cutting wire 85 of the left hot cutting knife mechanism 80, the left side edge of all diaphragms 1 of the battery cell can be hemmed by the hot cutting wire 85, so that the left side edges of all diaphragms 1 are adhered together, in the process of upward movement of the hot cutting wire 85 of the right hot cutting knife mechanism 90, the right side edge of all diaphragms 1 of the battery cell can be hemmed by the hot cutting wire 85, so that the right side edges of all diaphragms 1 are adhered together, so that the edge sealing of the two sides of the battery cell is realized, as shown in Figure 14 . Then the hot cutting wire 85 is driven downward to the initial position by the two hot cutting lifting cylinders 84 of the left hot cutting knife mechanism 80 and the two hot cutting lifting cylinders 84 of the right hot cutting knife mechanism 90.

[0073] S15, the two filling assemblies of the filling cylinder 53 drive the corresponding plurality of filling blocks 51 to move downward until the filling block 51 is in contact with the bottom of the corresponding avoiding groove 3131, at this time the filling block 51 is separated from the corresponding through hole, after the plurality of lower clamping jaws of the blanking manipulator are inserted into the plurality of through holes of the two laminated sheet supporting plates 311, the plurality of upper clamping jaws and the plurality of lower clamping jaws of the blanking manipulator can clamp the battery cell, then the blanking manipulator can drive the battery cell to move to the cutting process for cutting, so that a plurality of, for example, three single battery cells can be obtained. In the process of moving the battery cell to the cutting process by the blanking manipulator, since the two sides of the battery cell have been edge sealed, the two side edges of the diaphragm 1 of the battery cell will not be folded, improving the quality of the battery cell.

[0074] The left hot cutter mechanism 80 and the right hot cutter mechanism 90 are arranged, the hot cutter assembly of the left hot cutter mechanism 80 and the hot cutter assembly of the right hot cutter mechanism 90 can realize cutting the diaphragm 1, and can also realize edge sealing on both sides of the battery cell, so that in the process of clamping the battery cell by the plurality of upper clamping jaws and the plurality of lower clamping jaws of the blanking manipulator and moving the battery cell to the cutting process by the blanking manipulator, the two side edges of the diaphragm 1 of the battery cell will not be folded, improving the quality of the battery cell.

[0075] The above is a specific description of the preferred implementation of the utility model, but the utility model is not limited to the described embodiments, and those skilled in the art can make various equivalent modifications or replacements without departing from the spirit of the utility model, and these equivalent modifications or replacements are all included in the range defined by the claims of the present application.

Claims

1. A stacking device, comprising a stacking base and a stacking mechanism, the stacking mechanism comprising a stacking base disposed at the top of the stacking base and a stacking platform disposed at the top of the stacking base, characterized in that, It also includes a left hot cutting blade mechanism and a right hot cutting blade mechanism arranged opposite each other. The stacking mechanism is located between the left hot cutting blade mechanism and the right hot cutting blade mechanism. Each of the left hot cutting blade mechanism and the right hot cutting blade mechanism includes two hot cutting supports and hot cutting blade assemblies arranged opposite each other. The two hot cutting supports are respectively located at the top of the stacking base. The hot cutting blade assemblies are located at the top of the two hot cutting supports. The stacking stage is located between the hot cutting blade assemblies of the left hot cutting blade mechanism and the hot cutting blade assemblies of the right hot cutting blade mechanism.

2. The stacking device according to claim 1, characterized in that, The hot cutting blade assembly includes two hot cutting mounting plates, two hot cutting sliding plates, two hot cutting lifting cylinders, a hot cutting connecting plate, hot cutting wire, and a hot cutting tensioning cylinder. The two hot cutting mounting plates are respectively mounted on the tops of two hot cutting supports. The two hot cutting sliding plates are slidably mounted on the side of the two hot cutting mounting plates near the stacking table, with portions of each hot cutting sliding plate protruding from the end of the two hot cutting mounting plates near the center of the stacking table. The two hot cutting lifting cylinders are respectively mounted on the side of the two hot cutting mounting plates near the stacking table, and their output ends are connected to the tops of the two hot cutting sliding plates. The two hot cutting lifting cylinders are used to drive the two hot cutting sliding plates to move up and down. The two ends of the hot cutting connecting plate are respectively mounted on the two hot cutting sliding plates. At the bottom end of the plate, the hot-cutting wire is located above the hot-cutting connecting plate and below the top of the stacking table. One end of the hot-cutting wire is provided with a first hot-cutting mounting block, and the other end of the hot-cutting wire is provided with a second hot-cutting mounting block. The stacking table is located between the first hot-cutting mounting block and the second hot-cutting mounting block. The first hot-cutting mounting block and the second hot-cutting mounting block are respectively placed at the top of the hot-cutting connecting plate. The first hot-cutting mounting block is connected to the side of one of the hot-cutting sliding plates near the stacking table. The second hot-cutting mounting block is connected to the output end of the hot-cutting tensioning cylinder. The hot-cutting tensioning cylinder is located on the side of another hot-cutting sliding plate near the stacking table. The hot-cutting tensioning cylinder is used to drive the second hot-cutting mounting block to move back and forth.

3. The stacking device according to claim 1, characterized in that, The stacking mechanism also includes a stacking lifting assembly. The top of the stacking base is provided with two stacking support columns arranged in a front-to-back orientation. The bottom of the stacking platform is provided with two stacking sliding plates arranged in a front-to-back orientation. The two stacking sliding plates are respectively slidably disposed on the outside of the two stacking support columns. A stacking connecting plate is provided between the two stacking sliding plates. The stacking lifting assembly is used to drive the stacking connecting plate to move up and down.

4. The stacking device according to claim 3, characterized in that, The stacking table includes two stacking trays and a stacking base plate that are connected to each other. The stacking base plate is located below the two stacking trays. The bottom end of the stacking tray is provided with two stacking support plates that are spaced apart from each other. Both stacking support plates are located at the top of the stacking base plate. The bottom end of the stacking base plate is provided with two stacking sliding plates. The laminating and lifting assembly includes a laminating motor, a laminating synchronous belt structure, a laminating lead screw, and a laminating nut. The laminating motor is located at the top of the laminating base, with the motor portion extending from a clearance hole at the top of the laminating base. One end of the laminating lead screw passes through a base through hole at the top of the laminating base and extends into the laminating base. The other end of the laminating lead screw passes through a connecting plate through hole in the laminating connecting plate and is located between the laminating base plate and the laminating connecting plate. A laminating lead screw bearing seat is provided at the top of the laminating base, and the laminating lead screw bearing seat is sleeved on the outer periphery of the laminating lead screw. The laminating nut is threadedly engaged with the laminating lead screw and is located in the connecting plate through hole. The output end of the laminating motor is connected to one end of the laminating lead screw through the laminating synchronous belt structure. The laminating motor is used to drive the laminating lead screw to rotate through the laminating synchronous belt structure.

5. The stacking apparatus according to claim 4, characterized in that, The stacking support plate is provided with multiple through holes penetrating its top and bottom ends, and the multiple through holes are spaced apart from front to back. The stacking mechanism also includes two alignment components corresponding to the two stacking support plates respectively. The alignment component includes multiple alignment blocks, an alignment mounting plate and two alignment cylinders. The multiple alignment blocks correspond one-to-one with the multiple through holes of the corresponding stacking support plate, and the alignment blocks cooperate with the corresponding through holes. The top end of the stacking support plate is provided with multiple clearance grooves corresponding to the multiple through holes, and the multiple clearance grooves are respectively connected to the corresponding through holes. The alignment mounting plate is located between the two stacking support plates of the corresponding stacking support plate and between the stacking bottom plate and the corresponding stacking support plate. The bottom ends of the multiple alignment blocks are respectively connected to the top ends of the alignment mounting plate. The two alignment cylinders are respectively located at the bottom ends of the stacking bottom plate. The output ends of the alignment cylinders pass through the through holes of the stacking bottom plate and are connected to the bottom ends of the alignment mounting plate. The two alignment cylinders are used to drive the alignment mounting plate to move up and down.

6. The stacking apparatus according to claim 1, characterized in that, The stacking device further includes a first pressing mechanism and a second pressing mechanism. Both the first pressing mechanism and the second pressing mechanism include a first pressing component. The first pressing component of the first pressing mechanism and the first pressing component of the second pressing mechanism are arranged in a front-to-back opposite manner. The first pressing assembly includes a first pressing seat, a first forward and backward moving unit, a first pressing advance / retract plate slidably disposed on the top of the first pressing seat, a plurality of first pressing mounting seats, and a plurality of first pressing units. The first pressing seat is located below the stacking table, and the stacking base is located between the first pressing seat of the first pressing mechanism and the first pressing seat of the second pressing mechanism. The first forward and backward moving unit is used to drive the first pressing advance / retract plate to move forward and backward. The plurality of first pressing mounting seats are arranged sequentially and spaced apart from left to right on the top of the first pressing advance / retract plate. A first pressing sliding plate is provided on the side of the plurality of first pressing mounting seats away from the stacking base. Multiple first pressing units and multiple first pressing mounting seats correspond one-to-one. The stacking table is located between the multiple first pressing units of the first pressing mechanism and the multiple first pressing units of the second pressing mechanism. The first pressing unit includes a first pressing base, a first pressing cylinder, and a first pressing blade. The first pressing base is disposed on the side of the first pressing sliding plate away from the stacking base. The first pressing cylinder is disposed at the top of the first pressing base. One end of the first pressing blade is disposed at the top of the first pressing cylinder, and the other end of the first pressing blade extends toward the stacking table. The first pressing blade is located above the stacking table.

7. The stacking apparatus according to claim 6, characterized in that, Both the first pressing mechanism and the second pressing mechanism include a second pressing component, and the second pressing components of the first pressing mechanism and the second pressing mechanism are arranged in a front-to-back relative manner; The second pressing assembly includes a second pressing seat, a second forward and backward moving unit, a second pressing advance / retract plate slidably disposed on the top of the second pressing seat, a plurality of second pressing mounting seats, and a plurality of second pressing units. The first pressing seat is located between the second pressing seat and the stacking base, and the first pressing advance / retract plate is located between the second pressing advance / retract plate and the stacking base. The second forward and backward moving unit is used to drive the second pressing advance / retract plate to move forward and backward. The plurality of second pressing mounting seats are arranged sequentially and spaced apart from left to right on the top of the second pressing advance / retract plate. A second pressing sliding plate is provided on the side of the plurality of second pressing mounting seats near the stacking base, and the second pressing sliding plate is opposite to the first pressing sliding plate. The plurality of second pressing units and the plurality of second pressing blades are also included. The mounting bases are one-to-one. The multiple second pressing units of the first pressing mechanism and the multiple first pressing units of the first pressing mechanism are arranged alternately from right to left. The multiple second pressing units of the second pressing mechanism and the multiple first pressing units of the second pressing mechanism are arranged alternately from left to right. The second pressing unit includes a second pressing base, a second pressing cylinder, and a second pressing blade. The second pressing base is located on the side of the second pressing sliding plate near the stacking base. The second pressing cylinder is located at the top of the second pressing base. One end of the second pressing blade is located at the top of the second pressing cylinder. The other end of the second pressing blade extends towards the stacking table. The second pressing blade is located above the stacking table.

8. The stacking apparatus according to claim 6, characterized in that, The first pressure plate holder includes two first pressure plate raising blocks arranged opposite each other to the left and right, and a first pressure plate mounting plate. Both first pressure plate raising blocks are located at the top of the stacked base. The first pressure plate mounting plate is located at the top of the two first pressure plate raising blocks. Two first pressure plate support plates are arranged opposite each other to the left and right at the top of the first pressure plate mounting plate. The first pressure plate advance / retracting plate is slidably disposed at the top of the two first pressure plate support plates. The first forward / backward moving unit includes a first forward / backward motor, a first forward / backward synchronous belt structure, a first forward / backward lead screw, and a first forward / backward nut. The first forward / backward motor is located between the two first pressure plate raising blocks and is disposed inside one of the first pressure plate raising blocks. The two ends of the first forward / backward lead screw are rotatably disposed at the top of the first pressure plate mounting plate. The first forward / backward motor is connected to one end of the first forward / backward lead screw via the first forward / backward synchronous belt structure. The first forward / backward motor drives the first forward / backward lead screw to rotate via the first forward / backward synchronous belt structure. The first forward / backward nut is threadedly engaged with the first forward / backward lead screw and is connected to the bottom end of the first pressure plate advance / retracting plate.

9. The stacking apparatus according to claim 7, characterized in that, The second pressure knife holder includes a second pressure knife mounting plate disposed at the top of the stacked base and two second pressure knife raising blocks arranged in a left-right opposite manner. Both second pressure knife raising blocks are disposed at the top of the second pressure knife mounting plate. Each of the two second pressure knife raising blocks has a second pressure knife support plate arranged in a left-right opposite manner at its top. The second pressure knife advance / retracting plate is slidably disposed at the top of the two second pressure knife support plates. The second forward / backward moving unit includes a second forward / backward motor, a second forward / backward synchronous belt structure, a second forward / backward lead screw, and a second forward / backward nut. The second forward / backward motor is disposed on the outer side of one of the second pressure knife raising blocks. The two ends of the second forward / backward lead screw are rotatably disposed on the inner side of one of the second pressure knife raising blocks. The second forward / backward motor is connected to one end of the second forward / backward lead screw via the second forward / backward synchronous belt structure. The second forward / backward motor drives the second forward / backward lead screw to rotate via the second forward / backward synchronous belt structure. The second forward / backward nut is threadedly engaged with the second forward / backward lead screw and is connected to the bottom end of the second pressure knife advance / retracting plate.

10. The stacking apparatus according to claim 7, characterized in that, A first pressing blade sliding plate is slidably disposed on the side of a plurality of first pressing blade mounting seats away from the stacking base, and a second pressing blade sliding plate is slidably disposed on the side of a plurality of second pressing blade mounting seats near the stacking base. The first pressing blade assembly further includes a first up-and-down moving unit for driving the first pressing blade sliding plate to move up and down, and the second pressing blade assembly further includes a second up-and-down moving unit for driving the second pressing blade sliding plate to move up and down.

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