Electrode plate transmission and dust removal integrated equipment based on vacuum adsorption and production process

Abstract

The invention discloses electrode plate transmission and dust removal integrated equipment based on vacuum adsorption and a production process. The equipment comprises a conveying supporting frame, a dust collecting and supporting integrated box, a first conveying belt, a second conveying belt, a negative pressure device, a discharging stacking plate and a discharging transferring device. The conveying supporting frame comprises a left conveying supporting strip and a right conveying supporting strip, and the dust collecting and supporting integrated box is arranged in the containing space. The first conveying belt and the second conveying belt are arranged side by side and surround the head end and the tail end of the conveying supporting frame. The first conveying belt and the second conveying belt are independently driven through the two power transmission systems correspondingly. Through holes are formed in the first conveying belt and the second conveying belt; a negative pressure through hole is formed in the dust collecting and supporting integrated box; the negative pressure device provides negative pressure for the dust collecting and supporting integrated box; the discharging transferring device transfers the electrode slices to the discharging stacking plate. No matter in the electrode plate conveying process or in the electrode plate dust removal process, the dust on the surface of the electrode plate can be effectively removed by means of the vacuum adsorption principle.

Description

Technical Field

[0001] This invention relates to the field of new energy battery production technology, and in particular to an integrated equipment and production process for electrode sheet transfer and dust removal based on vacuum adsorption. Background Technology

[0002] In the lithium battery production process, a slurry needs to be coated onto the electrode sheet, and then the electrode sheet needs to be dried and rolled to increase its density and prevent it from cracking.

[0003] The electrode sheets that have completed the above operations need to be transported to the unloading station for stacking. Generally speaking, the length of a complete electrode sheet is about 2-3 meters. How to achieve stable transport of the electrode sheets is a problem that needs to be considered in the design of non-standard automated equipment.

[0004] In addition, after the above operations are completed, one side of the electrode sheet will have dust that is easy to fall off. Before the electrode sheets are fed and stacked, the dust on the surface of the electrode sheets needs to be effectively removed.

[0005] During the transfer of electrode sheets using vacuum adsorption, the conveyor belt needs to have through holes, but the areas of the conveyor belt other than the through holes partially block the surface of the electrode sheets. This results in the ineffective removal of dust from the electrode sheet surface. Summary of the Invention

[0006] The purpose of this invention is to overcome the shortcomings of the prior art and provide an integrated device and production process for electrode sheet transfer and dust removal based on vacuum adsorption. Both the electrode sheet transfer process and the electrode sheet dust removal process utilize the principle of vacuum adsorption and can effectively remove dust from the surface of the electrode sheet.

[0007] The objective of this invention is achieved through the following technical solution: An integrated electrode sheet conveying and dust removal device based on vacuum adsorption includes: a conveying support frame, a dust collection and support integrated box, a first conveyor belt, a second conveyor belt, a negative pressure device, a material unloading stack, and a material unloading and transfer device. The transmission support frame includes a left transmission support bar and a right transmission support bar arranged in a straight line along the horizontal direction. The left transmission support bar and the right transmission support bar are spaced apart to form an accommodating space, and the dust collection support integrated box is disposed in the accommodating space. The first and second transmission belts are arranged side by side and surround the beginning and end of the transmission support frame. The first and second transmission belts are driven independently by two sets of power transmission systems. The first conveyor belt has a first through hole evenly distributed on its belt body, the second conveyor belt has a second through hole evenly distributed on its belt body, and the dust collection and support integrated box has negative pressure through holes evenly distributed on its box surface; the belt bodies of the first and second conveyor belts are pressed against the box surface of the dust collection and support integrated box. The negative pressure device is used to provide negative pressure to the body of the integrated dust collection and support box; The unloading stack plate is located on one side of the conveying support frame; The feeding and conveying device is used to transfer the electrode sheets from the first and second conveyor belts to the feeding stack.

[0008] In one embodiment, The integrated electrode sheet conveying and dust removal equipment based on vacuum adsorption also includes a pressing device located at the head end of the conveying support frame. The pressing device includes: a first pressing cylinder, a second pressing cylinder, a cantilever rod, and a pressing driven roller; the first pressing cylinder and the second pressing cylinder are respectively installed on the left and right transmission support bars, the two ends of the cantilever rod are respectively provided at the output ends of the first pressing cylinder and the second pressing cylinder through buffer springs, the pressing driven roller is rotatably sleeved on the cantilever rod, and the pressing driven roller presses against the belt bodies of the first and second transmission belts.

[0009] In one embodiment, the power transmission system is a servo motor drive structure.

[0010] In one embodiment, the vacuum adsorption-based electrode sheet conveying dust removal integrated device further includes a conveyor belt dust removal chamber, which is installed at the tail end of the conveying support frame. The dust removal port of the conveyor belt dust removal chamber faces the belt body of the first and second conveyor belts, and the negative pressure device is used to provide negative pressure to the conveyor belt dust removal chamber.

[0011] In one embodiment, the material feeding and conveying device includes: a horizontal moving module, a vertical lifting module, a suspension, and a plurality of vacuum nozzles; the horizontal moving module is used to drive the suspension to move back and forth in the horizontal direction, the vertical lifting module is used to drive the suspension to move up and down in the vertical direction, and the plurality of vacuum nozzles are mounted on the suspension and arranged sequentially at intervals in a straight line in the horizontal direction.

[0012] In one embodiment, the horizontal moving module is a motor-driven screw structure, and the vertical lifting module is a cylinder-driven structure.

[0013] In one embodiment, the suspension is provided with an elastic buffer structure.

[0014] An integrated production process for electrode sheet transfer and dust removal based on vacuum adsorption, using the aforementioned integrated equipment for electrode sheet transfer and dust removal based on vacuum adsorption, includes the following steps: Step 1: The electrode sheet arrives at the first end of the transmission support frame from the previous station. The negative pressure device is activated, and the first and second transmission belts transmit synchronously in the same direction. One end of the electrode sheet is attracted to the belt body of the first and second transmission belts. Step 2: The electrode sheet is transported synchronously and in the same direction along the first and second conveyor belts. When the electrode sheet completely covers the first and second conveyor belts, the first and second conveyor belts stop transporting and the negative pressure device is turned off. Step 3: The first and second conveyor belts transport materials in opposite directions to a preset distance and then stop transporting them. Step four: The negative pressure device is turned on, and the first and second conveyor belts move synchronously and in the same direction, reciprocating a preset distance, thereby driving the electrode plates to move back and forth. Step 5: The negative pressure device is turned off, the first and second conveyor belts stop conveying, and the unloading and transfer device transfers the electrode sheets at the first and second conveyor belts to the unloading stack plate. Step six, repeat steps one through five.

[0015] The present invention discloses an integrated electrode sheet transfer and dust removal device and production process based on vacuum adsorption. Both the electrode sheet transfer process and the electrode sheet dust removal process utilize the principle of vacuum adsorption, and can effectively remove dust from the surface of the electrode sheet. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a perspective view of an integrated dust removal device based on vacuum adsorption electrode sheet transfer according to an embodiment of the present invention; Figure 2 for Figure 1 The diagram shows a plan view of an integrated dust removal device based on vacuum adsorption electrode sheet transfer. Figure 3 for Figure 1 A partial view of the integrated dust removal device based on vacuum adsorption electrode sheet transfer is shown. Figure 4 for Figure 1 An exploded view of the integrated dust removal device based on vacuum adsorption electrode sheet transfer is shown. Figure 5 for Figure 1 Enlarged view at point A. Detailed Implementation

[0018] To facilitate understanding of the present invention, a more complete description will be given below with reference to the accompanying drawings. Preferred embodiments of the invention are shown in the drawings. However, the invention can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a thorough and complete understanding of the disclosure of the invention.

[0019] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly attached to the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0020] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0021] like Figure 1 As shown, this invention discloses an integrated electrode sheet transfer and dust removal device 10 based on vacuum adsorption, comprising: a transfer support frame 100 (e.g., ... Figure 2 (As shown), Dust collection and support integrated box 200 (as shown) Figure 4 As shown), the first transmission belt 300 (as shown) Figure 4 As shown), the second transmission belt 400 (as shown) Figure 4 As shown), negative pressure device 500 (such as Figure 2 As shown), the blanking layer stacked plate 600 (as shown) Figure 1 As shown), the material feeding and transfer device 700 (such as...) Figure 1 (As shown).

[0022] like Figure 2 As shown, the transmission support frame 100 includes a left transmission support bar 110 and a right transmission support bar 120 arranged in a straight line along the horizontal direction. The left transmission support bar 110 and the right transmission support bar 120 are spaced apart to form an accommodating space, and the dust collection support integrated box 200 is disposed in the accommodating space.

[0023] like Figure 3 and Figure 4 As shown, the first conveyor belt 300 and the second conveyor belt 400 are arranged side by side and wrap around the beginning and end of the conveyor support frame 100. The first conveyor belt 300 and the second conveyor belt 400 are respectively connected to two sets of power transmission systems 800 (e.g., Figure 4 (As shown) Independent drive. In this embodiment, the power transmission system 800 is a servo motor drive structure.

[0024] like Figure 4 As shown, the first conveyor belt 300 has a first through hole 310 evenly distributed on its belt body, the second conveyor belt 400 has a second through hole 410 evenly distributed on its belt body, and the dust collection support integrated box 200 has a negative pressure through hole 210 evenly distributed on its box surface; the belt bodies of the first conveyor belt 300 and the second conveyor belt 400 are pressed against the box surface of the dust collection support integrated box 200.

[0025] like Figures 1 to 3 As shown, the negative pressure device 500 is used to provide negative pressure for the housing of the dust collection support integrated box 200; the unloading layer stack 600 is located on one side of the transmission support frame 100; the unloading transfer device 700 is used to transfer the electrode sheet 20 at the first transmission belt 300 and the second transmission belt 400 to the unloading layer stack 600.

[0026] The working principle of the vacuum adsorption-based electrode sheet transfer dust removal integrated device 10 is explained below: Electrode sheet 20 arrives at the beginning of the transfer support frame 100 from the previous station (e.g., Figure 2 As shown), the negative pressure device 500 is turned on and evacuates the dust collection and support integrated box 200. Since the first conveyor belt 300 has a first through hole 310, the second conveyor belt 400 has a second through hole 410, and the dust collection and support integrated box 200 has a negative pressure through hole 210, negative pressure will be generated on the surfaces of the first conveyor belt 300 and the second conveyor belt 400. The first transmission belt 300 and the second transmission belt 400 transmit synchronously and in the same direction. One end of the electrode sheet 20 is adsorbed onto the belt body of the first transmission belt 300 and the second transmission belt 400. Synchronous and in the same direction means that the first transmission belt 300 and the second transmission belt 400 have the same transmission speed and the same transmission direction. As the first conveyor belt 300 and the second conveyor belt 400 transmit synchronously and in the same direction, the electrode sheet 20 will follow the first conveyor belt 300 and the second conveyor belt 400 to make transmission movement under the action of negative pressure. As a result, the electrode sheet 20 will gradually move from the first end to the tail end of the transmission support frame 100. It should be noted that as the electrode plate 20 gradually approaches the rear end of the transmission support frame 100, some dust on the electrode plate 20 will be sucked into the dust collection support integrated box 200 under the action of negative pressure. However, as can be clearly seen from the figure, part of the electrode plate 20 is blocked by the first transmission belt 300 and the second transmission belt 400 (the area outside the first through hole 310 and the second through hole 410). The dust on this part of the area cannot be effectively removed, and there are dead corners for cleaning. This is a technical problem that needs to be solved. When the electrode plate 20 completely covers the first conveyor belt 300 and the second conveyor belt 400, the first conveyor belt 300 and the second conveyor belt 400 stop conveying, and the negative pressure device 500 is turned off. Next, the first conveyor belt 300 and the second conveyor belt 400 transmit in opposite directions to a preset distance and then stop transmitting. For example, the first conveyor belt 300 transmits in a clockwise direction, while the second conveyor belt 400 transmits in a counterclockwise direction. Since the area of ​​the electrode sheet 20 pressed on the first conveyor belt 300 and the area pressed on the second conveyor belt 400 are equal, the frictional forces generated by the pressing are equal and opposite. Furthermore, the electrode sheet 20 is clamped and limited by the left conveyor support bar 110 and the right conveyor support bar 120. In this way, the electrode sheet 20 will remain in its original position, while the first conveyor belt 300 and the second conveyor belt 400 will shift a certain distance (equivalent to the distance between the two first through holes 310 or the distance between the two second through holes 410). In this way, the above-mentioned obstruction can be avoided, and the area of ​​the electrode sheet 20 that was originally obstructed is exposed at the through hole. Next, the negative pressure device 500 is activated, and the first conveyor belt 300 and the second conveyor belt 400 synchronously and in the same direction reciprocate for a preset distance, thereby driving the electrode plate 20 to move back and forth. It should be noted that there is also a gap between the negative pressure through holes 210 on the surface of the dust collection and support integrated box 200. This gap will also block the electrode plate 20. Therefore, the first conveyor belt 300 and the second conveyor belt 400 synchronously and in the same direction reciprocate for a preset distance (equivalent to the distance between the two negative pressure through holes 210). By driving the electrode plate 20 to move back and forth, the dust on another part of the surface of the electrode plate 20 is sucked into the dust collection and support integrated box 200 under the action of negative pressure. After the electrode sheet 20 moves back and forth for a period of time, the negative pressure device 500 is turned off, the first conveyor belt 300 and the second conveyor belt 400 stop conveying, and the unloading and transfer device 700 transfers the electrode sheet 20 at the first conveyor belt 300 and the second conveyor belt 400 to the unloading stack plate 700. This process is repeated continuously, stacking the dust-removed electrode sheets 20 one by one on the feeding stack plate 700.

[0027] As described above, under the action of the vacuum adsorption-based electrode sheet conveying and dust removal integrated device 10, the electrode sheet 20 not only completes the conveying based on vacuum adsorption, but also completes the dust removal based on vacuum adsorption. This invention divides the traditional conveyor belt into two sections: the first conveyor belt 300 and the second conveyor belt 400 operate independently. At certain stages, the two conveyor belts convey synchronously in the same direction, while at other stages, they convey in opposite directions to avoid each other. This works in conjunction with the negative pressure device 500 to achieve both conveying and dust removal.

[0028] The first conveyor belt 300 and the second conveyor belt 400 operate very smoothly and synchronously in the same direction during the feeding process. After feeding is completed, they immediately move in opposite directions for a short distance, and then move back and forth synchronously in the same direction for a period of time, which can effectively clean the dust on the surface of the electrode sheet 20.

[0029] The specific structure of the material feeding and transfer device 700 will be described below: like Figure 4 As shown, the material feeding and conveying device 700 includes: a horizontal moving module 710, a vertical lifting module 720, a suspension 730, and a plurality of vacuum nozzles 740. The horizontal moving module 710 drives the suspension 730 to reciprocate horizontally, and the vertical lifting module 720 drives the suspension 730 to reciprocate vertically. The plurality of vacuum nozzles 740 are mounted on the suspension 730 and arranged sequentially at intervals in a straight line along the horizontal direction. In this embodiment, the horizontal moving module 710 is a motor screw driven structure, and the vertical lifting module 720 is a cylinder driven structure.

[0030] Vacuum nozzle 740 generates a vacuum suction force to hold the surface of electrode sheet 20. Then, under the action of horizontal moving module 710 and vertical lifting module 720, the electrode sheet 20 at the first conveyor belt 300 and the second conveyor belt 400 is transferred to the unloading stacking plate 600. The vacuum suction force of vacuum nozzle 740 disappears, and the electrode sheet 20 can then be stacked on the unloading stacking plate 600. In this invention, the suspension 730 is provided with an elastic buffer structure 750 (e.g., Figure 4 As shown, by setting the elastic buffer structure 750, the electrode sheet 20 can be gently stacked on the unloading stack plate 600, reducing impact.

[0031] like Figure 5 As shown, in this invention, the integrated electrode sheet transfer and dust removal device 10 based on vacuum adsorption further includes a pressing device 900 located at the head end of the transfer support frame. For example... Figure 5As shown, the pressing device 900 includes: a first pressing cylinder 910, a second pressing cylinder 920, a cantilever rod 930, and a pressing driven roller 940. The first pressing cylinder 910 and the second pressing cylinder 920 are respectively mounted on the left transmission support bar 110 and the right transmission support bar 120. The two ends of the cantilever rod 930 are respectively connected to the output ends of the first pressing cylinder 910 and the second pressing cylinder 920 through buffer springs 950. The pressing driven roller 940 is rotatably sleeved on the cantilever rod 930 and presses against the belt bodies of the first transmission belt 300 and the second transmission belt 400. By setting up the pressing device 900, the electrode sheet 20 can be flattened. When the electrode sheet 20 gradually approaches the tail end of the transmission support frame 100, the pressing driven roller 940 presses against the surface of the electrode sheet 20 and rotates driven by it.

[0032] Furthermore, the integrated electrode sheet conveying and dust removal device 10 based on vacuum adsorption also includes a conveyor belt dust removal chamber 960 (e.g., Figure 3 As shown, a conveyor belt dust collection chamber 960 is installed at the tail end of the conveyor support frame 100. The dust collection port of the conveyor belt dust collection chamber 960 faces the belt bodies of the first conveyor belt 300 and the second conveyor belt 400. A negative pressure device 500 is used to provide negative pressure to the conveyor belt dust collection chamber 960. During the conveying process, dust inevitably adheres to the belt bodies of the first conveyor belt 300 and the second conveyor belt 400. By setting the conveyor belt dust collection chamber 960 at the tail end of the conveyor support frame 100, the belt bodies of the first conveyor belt 300 and the second conveyor belt 400 can be effectively dusted.

[0033] This invention also discloses an integrated production process for electrode sheet transfer and dust removal based on vacuum adsorption. The integrated equipment for electrode sheet transfer and dust removal based on vacuum adsorption described above includes the following steps: Step 1: The electrode sheet 20 arrives at the first end of the transmission support frame 100 from the previous station. The negative pressure device 500 is turned on, and the first transmission belt 300 and the second transmission belt 400 transmit synchronously in the same direction. One end of the electrode sheet 20 is attracted to the belt body of the first transmission belt 300 and the second transmission belt 400. Step 2: The electrode sheet 20 is transported synchronously and in the same direction with the first conveyor belt 300 and the second conveyor belt 400. When the electrode sheet 20 completely covers the first conveyor belt 300 and the second conveyor belt 400, the first conveyor belt 300 and the second conveyor belt 400 stop transporting and the negative pressure device 500 is turned off. Step 3: The first conveyor belt 300 and the second conveyor belt 400 transmit in opposite directions to a preset distance and then stop transmitting. Step 4: The negative pressure device 500 is turned on, and the first conveyor belt 300 and the second conveyor belt 400 synchronously and in the same direction and reciprocate for a preset distance, thereby driving the electrode plate 20 to move back and forth. Step 5: The negative pressure device 500 is turned off, the first conveyor belt 300 and the second conveyor belt 400 stop conveying, and the unloading and transfer device 700 transfers the electrode sheet 20 at the first conveyor belt 300 and the second conveyor belt 400 to the unloading layer stack plate 600. Step six, repeat steps one through five.

[0034] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the invention patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of this invention patent should be determined by the appended claims.

Claims

1. A vacuum adsorption-based electrode sheet conveying and dust removal integrated device, characterized in that, The application relates to a vacuum adsorption-based electrode sheet conveying and dust removing integrated device. The device comprises a conveying support frame, a dust collecting and supporting integrated box, a first conveying belt, a second conveying belt, a negative pressure device, a blanking laminated plate and a blanking transferring device. The conveying support frame comprises left and right conveying support strips arranged linearly along the horizontal direction, and the left and right conveying support strips are spaced apart to form a containing space, and the dust collecting and supporting integrated box is arranged in the containing space. The first and second conveying belts are arranged side by side and surround the first and second ends of the conveying support frame, and the first and second conveying belts are independently driven by two sets of power transmission systems. First through holes are uniformly arranged on the belt body of the first conveying belt, second through holes are uniformly arranged on the belt body of the second conveying belt, and negative pressure through holes are uniformly arranged on the surface of the dust collecting and supporting integrated box, and the belt bodies of the first and second conveying belts are pressed on the surface of the dust collecting and supporting integrated box. The negative pressure device is used for providing negative pressure for the dust collecting and supporting integrated box. The blanking laminated plate is arranged on one side of the conveying support frame. The blanking transferring device is used for transferring the electrode sheet on the first and second conveying belts to the blanking laminated plate.

2. The vacuum adsorption-based electrode sheet conveying and dust removing integrated device according to claim 1, wherein the device further comprises a pressing device arranged at the first end of the conveying support frame. The pressing device comprises a first pressing cylinder, a second pressing cylinder, a cantilever rod and a pressing driven roller, the first and second pressing cylinders are respectively arranged on the left and right conveying support strips, the two ends of the cantilever rod are respectively arranged on the output ends of the first and second pressing cylinders through buffer springs, and the pressing driven roller is rotatably sleeved on the cantilever rod and is pressed on the belt bodies of the first and second conveying belts. The power transmission system is a servo motor driving structure. 3.The vacuum-suction-based electrode sheet transport and dust removal integrated apparatus according to claim 1, wherein The device further comprises a conveying belt dust removing bin, the conveying belt dust removing bin is arranged at the tail end of the conveying support frame, the dust removing port of the conveying belt dust removing bin faces the belt bodies of the first and second conveying belts, and the negative pressure device is used for providing negative pressure for the conveying belt dust removing bin. 4.The vacuum-suction-based electrode sheet transport and dust removal integrated apparatus according to claim 1, wherein The blanking transferring device comprises a horizontal moving module, a vertical lifting module, a suspension and a plurality of vacuum nozzles, the horizontal moving module is used for driving the suspension to move back and forth along the horizontal direction, the vertical lifting module is used for driving the suspension to move up and down along the vertical direction, and the plurality of vacuum nozzles are sequentially and spaced apart arranged on the suspension along the horizontal direction. 5.The vacuum-suction-based electrode sheet transporting and dust removing integrated apparatus according to claim 1, wherein The horizontal moving module is a motor screw rod driving structure, and the vertical lifting module is a cylinder driving structure. 6.The vacuum-suction-based electrode sheet conveying and dust removing integrated apparatus according to claim 5, wherein The suspension is provided with an elastic buffer structure.

7. The vacuum-suction-based electrode sheet transport and dust removal integrated apparatus according to claim 5 or 6, characterized by The vacuum adsorption-based electrode sheet conveying and dust removing integrated device according to any one of claims 1 to 7 comprises the following steps:

8. A vacuum suction-based electrode sheet conveying and dust removal integrated production process, characterized in that, ​ Step one, the electrode sheet reaches the first end of the transmission support frame from the previous station, the negative pressure device is opened, the first transmission belt and the second transmission belt are synchronously transmitted in the same direction, one end of the electrode sheet is adsorbed on the belt body of the first transmission belt and the second transmission belt; Step two, the electrode sheet is synchronously transmitted with the first transmission belt and the second transmission belt in the same direction, when the electrode sheet completely covers the first transmission belt and the second transmission belt, the first transmission belt and the second transmission belt stop transmission, and the negative pressure device is closed; Step three, the first transmission belt and the second transmission belt are respectively transmitted in opposite directions to a preset distance and then stop transmission; Step four, the negative pressure device is opened, the first transmission belt and the second transmission belt are synchronously transmitted in the same direction and reciprocatingly transmitted by a preset distance, so as to drive the electrode sheet to reciprocally move; Step five, the negative pressure device is closed, the first transmission belt and the second transmission belt stop transmission, and the electrode sheet at the first transmission belt and the second transmission belt is moved to the unloading stacking plate by the unloading moving device; Step six, steps one to five are repeated.

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