An electrode core winding production line

Abstract

The application discloses a kind of electric core winding production line, including pole piece roll material loading equipment, positive pole piece unwinding equipment, negative pole piece unwinding equipment, upper diaphragm unwinding equipment, lower diaphragm unwinding equipment, tab cutting equipment, positive pole piece feeding equipment, negative pole piece feeding equipment, winding equipment, electric core unloading equipment, rubberized paper equipment, pole piece dust removal equipment electric core unloading conveying line, positive pole piece unwinding equipment, negative pole piece unwinding equipment, upper diaphragm unwinding equipment, lower diaphragm unwinding equipment, positive pole piece feeding equipment, negative pole piece feeding equipment, rubberized paper equipment and electric core unloading equipment are all set in winding equipment outside, pole piece roll material loading equipment is set in the outside of positive pole piece unwinding equipment and negative pole piece unwinding equipment, tab cutting equipment and pole piece dust removal equipment are sequentially arranged between positive pole piece unwinding equipment and winding equipment and between negative pole piece unwinding equipment and winding equipment, electric core unloading conveying line is set in the outside of electric core unloading equipment.The application is used for electric core winding.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of lithium battery production, and particularly relates to a battery cell winding production line. BACKGROUND

[0002] With the enhancement of environmental awareness and the progress of production technology, electric vehicles are increasingly widely used. The power battery is a main component of the electric vehicle. In the production process of the power battery, a winding device is needed to wind the positive and negative electrode sheets and the diaphragm into a battery cell. The winding of the battery cell includes the unwinding of the positive electrode sheet, the unwinding of the negative electrode sheet, the unwinding of the diaphragm, the winding of the positive and negative electrode sheets and the diaphragm together, and the blanking. The blanking step is a step of blanking the wound battery cell from the winding device. The current battery cell blanking generally uses a vacuum chuck or the like to adsorb and blank. However, the battery cell is in a cylindrical structure, and it is difficult for the vacuum chuck or the like to stably adsorb the battery cell on the surface of the cylindrical structure. Therefore, the use of the vacuum chuck or the like to adsorb and blank the battery cell has the risk of falling of the battery cell. The falling of the battery cell not only affects the stability of the production of the battery cell winding device, but also may cause the falling battery cell to be damaged, thereby affecting the production of the battery cell winding. For example, the patent document CN201811140903.4 discloses a battery cell blanking system which uses a negative pressure adsorption head to adsorb the battery cell. However, the system has the technical problems of affecting the stability of the production of the battery cell winding device and causing the falling battery cell to be damaged, thereby affecting the production of the battery cell winding. SUMMARY

[0003] The present application solves the technical problem that the existing technology uses a vacuum chuck to adsorb and blank the battery cell after the winding of the battery cell, which affects the stability of the production of the battery cell winding device and causes the falling battery cell to be damaged, thereby affecting the production of the battery cell winding. The present application provides a battery cell winding production line which can solve the above technical problem.

[0004] To solve the above technical problem, the technical solution of the present application is as follows: a battery cell winding production line, comprising an electrode sheet winding material feeding device, a positive electrode sheet unwinding device, a negative electrode sheet unwinding device, an upper diaphragm unwinding device, a lower diaphragm unwinding device, an electrode lug cutting device, a positive electrode sheet feeding device, a negative electrode sheet feeding device, a winding device, a battery cell blanking device, a rubber sheet pasting device, an electrode sheet dust removal device, and a battery cell blanking conveying line. The positive electrode sheet unwinding device, the negative electrode sheet unwinding device, the upper diaphragm unwinding device, the lower diaphragm unwinding device, the positive electrode sheet feeding device, the negative electrode sheet feeding device, the rubber sheet pasting device, and the battery cell blanking device are all arranged outside the winding device. The electrode sheet winding material feeding device is arranged outside the positive electrode sheet unwinding device and the negative electrode sheet unwinding device. The electrode lug cutting device and the electrode sheet dust removal device are sequentially arranged between the positive electrode sheet unwinding device and the winding device and between the negative electrode sheet unwinding device and the winding device. The battery cell blanking conveying line is arranged outside the battery cell blanking device. The battery cell blanking device comprises a clamping jaw, and the battery cell blanking device blanks by clamping with the clamping jaw.

[0005] Further, the battery cell blanking device comprises a mounting plate, a battery cell blanking driving device and a battery cell fixing device, the battery cell blanking driving device is arranged on the mounting plate, and the battery cell fixing device is arranged at the movable end of the battery cell blanking driving device; the battery cell blanking driving device comprises a rotary driving mechanism and a linear sliding driving mechanism, the rotary driving mechanism is arranged on the mounting plate, the linear sliding driving mechanism is arranged at the movable end of the rotary driving mechanism, the battery cell fixing device is arranged at the movable end of the linear sliding driving mechanism, and the clamping jaw is arranged on the battery cell fixing device.

[0006] Further, the battery cell fixing device further comprises a clamping jaw air cylinder, the clamping jaw air cylinder is arranged at the movable end of the linear sliding driving mechanism, and the clamping jaw is arranged at the movable end of the clamping jaw air cylinder.

[0007] Further, the linear sliding driving mechanism comprises a sliding seat, a sliding rail mechanism and a sliding driving piece, the sliding seat is arranged at the movable end of the rotary driving mechanism, the clamping jaw air cylinder is arranged on the sliding seat through the sliding rail mechanism, and the sliding driving piece drives the clamping jaw air cylinder to slide linearly on the sliding seat.

[0008] Further, the battery cell blanking driving device further comprises a height adjusting plate, the height adjusting plate is arranged on the sliding seat through the sliding rail mechanism, the clamping jaw air cylinder is arranged on the height adjusting plate, and the clamping jaw air cylinder is arranged on the height adjusting plate in a height-adjustable manner.

[0009] Further, the rotary driving mechanism comprises a rotary driving piece, a driving gear and a driven gear, the rotary driving piece is arranged on the mounting plate, the driving gear is arranged at the movable end of the rotary driving piece, the driven gear is arranged on the rotary driving piece through a fixing plate, the driven gear is in transmission connection with the sliding seat, and the driving gear is in meshing connection with the driven gear.

[0010] Further, two diaphragm dust removal devices are further included, and the two diaphragm dust removal devices are respectively arranged between the upper diaphragm unwinding device and the winding device and between the lower diaphragm unwinding device and the winding device.

[0011] Further, the diaphragm dust removal device comprises a mounting shell, a first air knife, a first dust suction mechanism, a second air knife, a second dust suction mechanism, a first passing roller and a second passing roller, and the first air knife, the first dust suction mechanism, the first passing roller, the second air knife, the second dust suction mechanism and the second passing roller are respectively arranged on both sides of the pole piece passing path in the mounting shell.

[0012] Further, the positive pole piece unwinding device is arranged above the negative pole piece unwinding device, and the pole piece coiled material feeding device is arranged outside the positive pole piece unwinding device and the negative pole piece unwinding device.

[0013] Further, the positive electrode sheet unwinding device and the negative electrode sheet unwinding device are arranged on opposite sides of the winding device, and an electrode sheet roll feeding device is arranged outside the positive electrode sheet unwinding device and the negative electrode sheet unwinding device, respectively.

[0014] The beneficial effects realized by the application mainly include the following points: the cell winding production line comprises an electrode sheet roll feeding device, a positive electrode sheet unwinding device, a negative electrode sheet unwinding device, an upper separator unwinding device, a lower separator unwinding device, an electrode tab cutting device, a positive electrode sheet feeding device, a negative electrode sheet feeding device, a winding device, a cell discharging device and a cell discharging conveying line, the electrode sheet roll feeding device feeds positive electrode sheet rolls and negative electrode sheet rolls, the positive electrode sheet unwinding device and the negative electrode sheet unwinding device unwind the positive electrode sheet rolls and the negative electrode sheet rolls, the upper separator unwinding device and the lower separator unwinding device unwind separators, the winding device winds the unwound positive electrode sheets, negative electrode sheets and separators into cells, and the cell discharging device and the cell discharging conveying line realize the discharging of the cells, thereby realizing the automatic production of the cells and achieving high production efficiency. The cell discharging device comprises a clamping jaw, so that the cell discharging device clamps the cell by the clamping jaw when discharging the cell, and the cell is fixed stably and is not easy to fall and be damaged when discharging the cell, thereby ensuring the stability of the cell winding production. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 FIG. 1 is a structural schematic diagram of a cell winding production line in an embodiment of the application;

[0016] Figure 2 FIG. 2 is a three-dimensional structural schematic diagram of a cell discharging device in the embodiment of the application;

[0017] Figure 3 FIG. 3 is a three-dimensional structural schematic diagram of the cell discharging device without a mounting plate in the embodiment of the application;

[0018] Figure 4 FIG. 4 is a structural schematic diagram of a rotating driving mechanism and a linear sliding driving mechanism of the cell discharging device in the embodiment of the application;

[0019] Figure 5 FIG. 5 is a three-dimensional structural schematic diagram of a cell fixing device of the cell discharging device in the embodiment of the application;

[0020] Figure 6 FIG. 6 is a structural schematic diagram of a separator dust removal device of the cell winding production line in the embodiment of the application;

[0021] Figure 7 FIG. 7 is a structural schematic diagram of a cell winding production line in an embodiment of the application;

[0022] Figure 8 FIG. 8 is a structural schematic diagram of a cell winding production line in an embodiment of the application.

[0023] The accompanying drawings are only used for illustrative description and can not be understood as a limitation to the present patent; in order to better illustrate the present embodiment, some components in the drawings can be omitted, enlarged or reduced, and do not represent the actual size of the product; it can be understood by those skilled in the art that some well-known structures and their descriptions in the drawings can be omitted; the same or similar reference numerals correspond to the same or similar components; the terms used to describe the positional relationship in the drawings are only used for illustrative description and can not be understood as a limitation to the present patent. DETAILED DESCRIPTION

[0024] In order to facilitate those skilled in the art to understand, the present application will be further described in detail below in combination with the drawings and embodiments.

[0025] Embodiment one

[0026] Reference Figures 1-6A battery cell winding production line is used for battery cell winding production. The battery cell winding production line includes an electrode sheet feeding device 2, a positive electrode sheet unwinding device 31, a negative electrode sheet unwinding device 32, an upper diaphragm unwinding device 41, a lower diaphragm unwinding device 42, an electrode tab cutting device 51, a positive electrode sheet feeding device 52, a negative electrode sheet feeding device 53, an electrode sheet dust removal device 9, a winding device 6, an adhesive tape application device, a battery cell unloading device 1, and a battery cell unloading conveyor line 7. The positive electrode sheet unwinding device 31, the negative electrode sheet unwinding device 32, the upper diaphragm unwinding device 41, the lower diaphragm unwinding device 42, the positive electrode sheet feeding device 52, the negative electrode sheet feeding device 53, the adhesive tape application device, and the battery cell unloading device 1 are all located outside the winding device 6. The electrode roll feeding device 2 is located outside the positive electrode unwinding device 31 and the negative electrode unwinding device 32. The electrode roll feeding device 2 feeds the positive electrode roll and the negative electrode roll onto the positive electrode unwinding device 31 and the negative electrode unwinding device 32, respectively. The tab cutting device 51 and the electrode dust removal device 9 are sequentially arranged between the positive electrode unwinding device 31 and the winding device 6, and between the negative electrode unwinding device 32 and the winding device 6. The positive electrode sheet unwound by the positive electrode sheet unwinding device 31 is cut into tabs by the tab cutting device 51 and then fed into the positive electrode sheet feeding device 52, which then feeds it to the winding device 6. The negative electrode sheet unwound by the negative electrode sheet unwinding device 32 is cut into tabs by the tab cutting device 51 and then fed into the negative electrode sheet feeding device 53, which then feeds it to the winding device 6. The upper diaphragm unwinding device 41 and the lower diaphragm unwinding device 42 unwind the diaphragm to the winding device 6. The winding device 6 winds the positive and negative electrode sheets into a battery cell. During winding, the positive and negative electrode sheets are separated by a diaphragm. After the battery cell is wound, it is glued by an adhesive tape applicator. The battery cell unloading conveyor line 7 is located outside the battery cell unloading device 1. The battery cells wound by the winding equipment 6 are fed one by one onto the battery cell unloading conveyor line 7 via the battery cell unloading equipment 1. The battery cell unloading conveyor line 7 continuously feeds the battery cells. The battery cell unloading equipment 1 includes grippers 131, which clamp the battery cells during unloading, ensuring that the battery cells are fixed and stable and not easily dropped or damaged, thus guaranteeing the stability of the battery cell winding production.

[0027] See Figures 2-5, The battery cell blanking equipment 1 comprises a mounting plate 11, a battery cell blanking driving device 12 and a battery cell fixing device 13, the mounting plate 11 is used for mounting the battery cell blanking driving device 12 and the battery cell fixing device 13 into an integral structure, thereby facilitating the use of the battery cell blanking equipment. The battery cell blanking driving device 12 is arranged on the mounting plate 11, and the battery cell fixing device 13 is arranged on the movable end of the battery cell blanking driving device 12, so that the battery cell to be blanked can be fixed by the battery cell fixing device 13, and the battery cell can be moved and blanked by the battery cell blanking driving device 12. The battery cell blanking driving device 12 comprises a rotary driving mechanism 121 and a linear sliding driving mechanism 122, the rotary driving mechanism 121 is arranged on the mounting plate 11, the linear sliding driving mechanism 122 is arranged on the movable end of the rotary driving mechanism 121, and the battery cell fixing device 13 is arranged on the movable end of the linear sliding driving mechanism 122, so that the battery cell to be blanked can be fixed by the battery cell fixing device 13, the battery cell fixed by the battery cell fixing device 13 can be rotated by the rotary driving mechanism 121, and the battery cell fixed by the battery cell fixing device 13 can be linearly moved by the linear sliding driving mechanism 122, the rotation and linear movement of the battery cell are realized, the battery cell can be better blanked from a position with a small space in a battery cell manufacturing equipment, and the battery cell can be accurately blanked to a set position. The battery cell fixing device 13 comprises a clamping jaw 131, so that the battery cell can be clamped and fixed by the clamping jaw 131 when the battery cell blanking equipment blanks the battery cell, the battery cell is fixed stably and is not easy to fall and be damaged when the battery cell is blanked, and the stability of battery cell winding production is ensured.

[0028] Referring to Figures 2-5 In order to drive the clamping jaw 131 to clamp and fix the battery cell, the battery cell fixing device 13 is further provided with a clamping jaw pneumatic cylinder 132, the clamping jaw pneumatic cylinder 132 is arranged on the movable end of the linear sliding driving mechanism 122, and the clamping jaw 131 is arranged on the movable end of the clamping jaw pneumatic cylinder 132, so that the clamping jaw 131 can be driven by the clamping jaw pneumatic cylinder 132 to open and close to release or clamp the battery cell.

[0029] Referring to Figures 2-4 The linear sliding driving mechanism 122 comprises a sliding seat 1221, a sliding rail mechanism 1222 and a sliding driving piece 1223, the sliding seat 1221 is arranged on the movable end of the rotary driving mechanism 121 and is driven to rotate by the rotary driving mechanism 121. The clamping jaw pneumatic cylinder 132 is arranged on the sliding seat 1221 through the sliding rail mechanism 1222, and the sliding driving piece 1223 drives the clamping jaw pneumatic cylinder 132 to linearly slide on the sliding seat 1221. The sliding rail mechanism 1222 comprises a sliding rail and a sliding groove, the sliding rail is arranged on the sliding seat 1221, and the sliding groove is arranged on the clamping jaw pneumatic cylinder 132, so that the clamping jaw pneumatic cylinder 132 is linearly slidably arranged on the sliding seat 1221 through the sliding rail and the sliding groove. The sliding driving piece 1223 adopts a telescopic pneumatic cylinder, so that the clamping jaw pneumatic cylinder 132 is driven by the telescopic pneumatic cylinder to linearly slide on the sliding seat 1221, and the battery cell clamped by the clamping jaw 131 is linearly moved.

[0030] Referring to Figures 2-5 , in order to facilitate the clamping of different height battery cells, the battery cell blanking driving device 12 is further provided with a height adjusting plate 123, the height adjusting plate 123 is arranged on the sliding seat 1221 through the slide rail mechanism 1222, the clamping jaw air cylinder 132 is arranged on the height adjusting plate 123, and the clamping jaw air cylinder 132 is arranged on the height adjusting plate 123 in a height-adjustable manner, so that the height of the clamping jaw air cylinder 132 on the height adjusting plate 123 can be adjusted according to the height of the blanked battery cell. Preferably, a vertical height scale value is arranged on the height adjusting plate 123, so as to facilitate the adjustment of the height of the clamping jaw air cylinder 132 on the height adjusting plate 123. The height adjusting plate 123 is provided with a vertical long hole, and the clamping jaw air cylinder 132 is provided with a circular hole, the clamping jaw air cylinder 132 is installed on the height adjusting plate 123 through a bolt, the bolt is inserted into the long hole of the height adjusting plate 123 and the circular hole of the clamping jaw air cylinder 132, so that the height adjustment of the clamping jaw air cylinder 132 on the height adjusting plate 123 can be realized.

[0031] Referring to Figures 2-4 , the rotating driving mechanism 121 comprises a rotating driving piece 1211, a driving gear 1212 and a driven gear 1213, the rotating driving piece 1211 is arranged on the mounting plate 11, the driving gear 1212 is arranged on the movable end of the rotating driving piece 1211, and the driven gear 1213 is arranged on the rotating driving piece 1211 through a fixed plate, the driven gear 1213 is in transmission connection with the sliding seat 1221, the driving gear 1212 is in meshing connection with the driven gear 1213, so that the rotating driving piece 1211 drives the driving gear 1212 to rotate, the driving gear 1212 drives the driven gear 1213 to rotate, and the sliding seat 1221 and the linear sliding driving mechanism 122 rotate with the driven gear 1213, so as to realize the rotating adjustment of the battery cell fixed by the battery cell fixing device 13. The rotating driving piece 1211 is an electric motor.

[0032] Referring to Figure 6, in order to ensure the cleaning of the upper and lower membranes, two membrane dust removal devices 8 are arranged between the upper membrane unwinding device 41 and the winding device 6 and between the lower membrane unwinding device 42 and the winding device 6, respectively, to remove dust from the upper and lower membranes. The membrane dust removal device 8 comprises a mounting housing 81, a first air knife 82, a first dust collection mechanism 83, a second air knife 84, a second dust collection mechanism 85, a first roller 86 and a second roller 87, and the first air knife 82, the first dust collection mechanism 83, the first roller 86 and the second air knife 84, the second dust collection mechanism 85 and the second roller 87 are arranged on both sides of the membrane passing path in the mounting housing 81. The upper and lower membranes enter the mounting housing 81 through the inlet A, are supported by the first and second rollers 86 and 87, are cleaned on one side by the first air knife 82, and the dust blown off by the first air knife 82 is removed by the first dust collection mechanism 83; the other side of the upper and lower membranes is cleaned by the second air knife 84, and the dust blown off by the second air knife 84 is removed by the second dust collection mechanism 85. After the upper and lower membranes are cleaned, they are discharged from the outlet B of the mounting housing 81. A dust suction port 88 is arranged on the lower side of the mounting housing 81 to facilitate cleaning of the inside of the mounting housing 81.

[0033] Referring to Figures 1-6 , during operation of the battery cell winding production line, the jelly roll feeding device 2 feeds the positive and negative electrode jelly rolls to the positive electrode unwinding device 31 and the negative electrode unwinding device 32, respectively, the positive electrode unwinding device 31 and the negative electrode unwinding device 32 unwind the positive and negative electrode jelly rolls, the tab cutting device 51 cuts the tabs of the positive and negative electrodes, the upper and lower membrane unwinding devices 41 and 42 unwind the membranes, the membrane dust removal device 8 removes dust from the membranes, the winding device 6 winds the positive and negative electrodes and the membranes into a battery cell, and after winding of the battery cell is completed, the cutting device cuts the positive and negative electrodes and the membranes, the rubber sticking device sticks and fixes the end of the jelly roll, and the battery cell feeding device 1 and the battery cell feeding conveying line 7 realize feeding of the battery cell.

[0034] Example Two

[0035] Referring to Figures 1-7 , the overall structure of the battery cell winding production line in this embodiment is the same as that of Example One, and the layout of the positive electrode unwinding device 31, the negative electrode unwinding device 32 and the jelly roll feeding device 2 is further improved based on Example One. In the battery cell winding production line of this embodiment, the positive electrode unwinding device 31 is arranged above the negative electrode unwinding device 32, and the jelly roll feeding device 2 is arranged outside the positive electrode unwinding device 31 and the negative electrode unwinding device 32.

[0036] The working process of the battery cell winding production line in this embodiment is the same as that of Example One, and can be implemented by referring to Example One.

[0037] Example three

[0038] Referring to Figures 1-8 The overall structure of the battery cell winding production line in this embodiment is the same as that in example two, except that the layout of the positive electrode sheet unwinding device 31 and the negative electrode sheet unwinding device 32 is different. In the battery cell winding production line of this embodiment, the positive electrode sheet unwinding device 31 and the negative electrode sheet unwinding device 32 are arranged on opposite sides of the winding device 6, and one electrode sheet roll loading device 2 is arranged outside each of the positive electrode sheet unwinding device 31 and the negative electrode sheet unwinding device 32. The working process of the battery cell winding production line in this embodiment is the same as that in example two, and can be implemented by referring to example two.

[0039] Obviously, the above embodiments of the present application are merely exemplary for clearly illustrating the present application, and are not intended to limit the implementation modes of the present application. Based on the above description, other different forms of changes or variations can be made by those skilled in the art. Here, it is not necessary and also impossible to exhaust all the implementation modes. Any modification, equivalent replacement and improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the claims of the present application.

Claims

1. An electrode core winding production line characterized by comprising: The application relates to a battery cell production line, which comprises a positive electrode sheet roll material feeding device (2), a positive electrode sheet unwinding device (31), a negative electrode sheet unwinding device (32), an upper diaphragm unwinding device (41), a lower diaphragm unwinding device (42), an electrode lug cutting device (51), a positive electrode sheet feeding device (52), a negative electrode sheet feeding device (53), a winding device (6), a battery cell discharging device (1), a rubber sheet pasting device, an electrode sheet dust removal device (9) and a battery cell discharging conveying line (7), wherein the positive electrode sheet unwinding device (31), the negative electrode sheet unwinding device (32), the upper diaphragm unwinding device (41), the lower diaphragm unwinding device (42), the positive electrode sheet feeding device (52), the negative electrode sheet feeding device (53), the rubber sheet pasting device and the battery cell discharging device (1) are arranged outside the winding device (6), the electrode sheet roll material feeding device (2) is arranged outside the positive electrode sheet unwinding device (31) and the negative electrode sheet unwinding device (32), the electrode lug cutting device (51) and the electrode sheet dust removal device (9) are sequentially arranged between the positive electrode sheet unwinding device (31) and the winding device (6) and between the negative electrode sheet unwinding device (32) and the winding device (6), and the battery cell discharging conveying line (7) is arranged outside the battery cell discharging device (1). The battery cell discharging device (1) comprises a clamping jaw (131), and the battery cell discharging device (1) discharges by clamping with the clamping jaw (131). The battery cell discharging device (1) comprises a mounting plate (11), a battery cell discharging driving device (12) and a battery cell fixing device (13), the battery cell discharging driving device (12) is arranged on the mounting plate (11), and the battery cell fixing device (13) is arranged at the movable end of the battery cell discharging driving device (12). The battery cell fixing device (13) further comprises a clamping jaw air cylinder (132), the clamping jaw air cylinder (132) is arranged at the movable end of the linear sliding driving mechanism (122), and the clamping jaw (131) is arranged at the movable end of the clamping jaw air cylinder (132). The linear sliding driving mechanism (122) comprises a sliding seat (1221), a sliding rail mechanism (1222) and a sliding driving piece (1223), the sliding seat (1221) is arranged at the movable end of the rotary driving mechanism (121), the clamping jaw air cylinder (132) is arranged on the sliding seat (1221) through the sliding rail mechanism (1222), and the sliding driving piece (1223) drives the clamping jaw air cylinder (132) to linearly slide on the sliding seat (1221). The sliding driving piece (1223) is a telescopic air cylinder.

2. The cell winding production line according to claim 1, characterized by: The electric core blanking driving device (12) further comprises a height adjusting plate (123), the height adjusting plate (123) is arranged on a sliding seat (1221) through a sliding rail mechanism (1222), the clamping jaw air cylinder (132) is arranged on the height adjusting plate (123), and the clamping jaw air cylinder (132) is arranged in height on the height adjusting plate (123).

3. The cell winding line according to claim 2, characterized by: The rotating driving mechanism (121) comprises a rotating driving piece (1211), a driving gear (1212) and a driven gear (1213), the rotating driving piece (1211) is arranged on the mounting plate (11), the driving gear (1212) is arranged at the movable end of the rotating driving piece (1211), the driven gear (1213) is arranged on the rotating driving piece (1211) through a fixing plate, the driven gear (1213) is in transmission connection with the sliding seat (1221), and the driving gear (1212) is in mesh with the driven gear (1213).

4. The cell winding production line according to claim 1, characterized by: Two diaphragm dust removal devices (8) are further included, and the two diaphragm dust removal devices (8) are respectively arranged between the upper diaphragm unwinding device (41) and the winding device (6) and between the lower diaphragm unwinding device (42) and the winding device (6).

5. The cell winding line according to claim 4, characterized by: The diaphragm dust removal device (8) comprises a mounting shell (81), a first air knife (82), a first dust suction mechanism (83), a second air knife (84), a second dust suction mechanism (85), a first passing roller (86) and a second passing roller (87), and the first air knife (82), the first dust suction mechanism (83), the first passing roller (86), the second air knife (84), the second dust suction mechanism (85) and the second passing roller (87) are arranged on both sides of the pole piece passing path in the mounting shell (81).

6. The cell winding line according to any one of claims 1 to 5, characterized in that: The positive pole piece unwinding device (31) is arranged above the negative pole piece unwinding device (32), and the pole piece roll material feeding device (2) is arranged outside the positive pole piece unwinding device (31) and the negative pole piece unwinding device (32).

7. The cell winding line according to any one of claims 1 to 5, characterized by: The positive pole piece unwinding device (31) and the negative pole piece unwinding device (32) are arranged on opposite sides of the winding device (6), and one pole piece roll material feeding device (2) is arranged outside the positive pole piece unwinding device (31) and the negative pole piece unwinding device (32) respectively.

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