Tabletting device

Abstract

The invention relates to a piece production device, and belongs to the technical field of battery manufacturing. The pole piece production device comprises a negative pressure adsorption mechanism which comprises a negative pressure adsorption assembly, and when a pole piece material belt passes through a cutting station, the negative pressure adsorption assembly is used for adsorbing the pole piece material belt; the lifting driving assembly is used for driving the negative pressure adsorption assembly to move in the vertical direction; the lifting driving assembly is used for driving the negative pressure adsorption assembly to rotate around a first axis, the rotation driving assembly is used for driving the negative pressure adsorption assembly to rotate around a first axis, and the lifting driving assembly and the rotation driving assembly jointly drive the negative pressure adsorption assembly to be switched between a cutting station and a discharging station so that the pole pieces formed at the cutting station can be transferred to the discharging station. The flaking device has relatively high flaking efficiency and flaking qualification rate.

Description

Technical Field

[0001] The present application relates to the technical field of battery manufacturing, and in particular to a film manufacturing device. Background Art

[0002] In recent years, with the rapid development of the new energy field, higher requirements have been placed on the manufacturing process of lithium batteries. Lithium batteries have the advantages of high energy density, many cycles, and long storage time. They are widely used not only in portable devices, but also in electric vehicles, electric bicycles, electric engineering equipment, as well as solar and wind power generation equipment, etc.

[0003] During the manufacturing process of batteries, continuous electrode strips need to be cut to form electrode sheets so that they can be stacked to form battery cells. Improving the efficiency and pass rate of electrode production will significantly improve the production efficiency and safety performance of batteries. Summary of the invention

[0004] To this end, the present application proposes a film-making device with high film-making efficiency and film-making qualification rate.

[0005] The production device of some embodiments of the present application includes: a negative pressure adsorption mechanism, including a negative pressure adsorption component, which is used to adsorb the pole piece material strip when the pole piece material strip passes through the cutting station; a lifting drive component, which is used to drive the negative pressure adsorption component to move in a vertical direction; a rotation drive component, which is used to drive the negative pressure adsorption component to rotate around a first axis, and the first axis extends along a first horizontal direction. The lifting drive component and the rotation drive component jointly drive the negative pressure adsorption component to switch between the cutting station and the unloading station to transfer the pole piece formed at the cutting station to the unloading station.

[0006] Optionally, the cutting station and the blanking station are arranged circumferentially spaced around the first axis.

[0007] Optionally, the negative pressure adsorption component is provided with a plurality of cutting modules, and the plurality of cutting modules are circumferentially spaced around the first axis; when one of the plurality of cutting modules is docked with a cutting station, one of the remaining cutting modules is docked with a unloading station.

[0008] Optionally, the cutting module is provided with a plurality of cutting parts, each cutting part corresponds to a pole piece.

[0009] Optionally, the cutting module is provided with an adsorption plate, the adsorption plate is provided with adsorption holes, the adsorption holes are used to adsorb the pole piece strip or pole piece, the edge of the adsorption plate is provided with a cutting groove, the shape of the cutting groove matches the contour of the pole piece, the adsorption plate and the corresponding cutting groove constitute a cutting part.

[0010] Optionally, a negative pressure channel is provided inside the cutting module, and adsorption holes of multiple cutting parts of the same cutting module are connected to each other through the negative pressure channel, while negative pressure channels of different cutting modules are not connected to each other.

[0011] Optionally, the film-making device further includes: a deviation-correcting mechanism configured to adjust the position of the negative pressure adsorption component.

[0012] Optionally, the deviation correction mechanism includes: a transverse driving component for driving the negative pressure adsorption component to move along the bandwidth direction of the pole piece strip.

[0013] Optionally, the film making device further includes: a visual recognition mechanism, which is arranged at the cutting station and is used to detect the position of the pole piece strip, and the deviation correction mechanism is configured to adjust the position of the negative pressure adsorption component according to the detection result of the visual recognition mechanism.

[0014] Optionally, two visual recognition mechanisms are provided, and along the running direction of the electrode material strip, the two visual recognition mechanisms are respectively arranged on both sides of the negative pressure adsorption component.

[0015] Optionally, the negative pressure adsorption mechanism further includes: a negative pressure control component, used for providing a negative pressure gas source to the negative pressure adsorption component.

[0016] Compared with the prior art, this solution has the following beneficial effects:

[0017] In the film-making device of the embodiment of the present application, the lifting drive assembly and the rotating drive assembly jointly drive the negative pressure adsorption assembly to switch between the cutting station and the unloading station. The negative pressure adsorption assembly adsorbs the electrode material strip at the cutting station, and the cutting mechanism cuts the electrode material strip to form the electrode. The negative pressure adsorption assembly continues to adsorb the electrode and transfers it to the unloading station. The electrode is released, and the electrode falls naturally or is taken away by other manipulators. On the one hand, under the joint drive of the lifting drive assembly and the rotating drive assembly, the negative pressure adsorption assembly can not only transport the electrode material strip to the cutting station, but also adsorb the electrode formed by cutting and transfer it to the unloading station. It has a simple structure, a compact structure, and a short stroke, which simplifies the transfer steps of the electrode and improves the film-making efficiency. On the other hand, the negative pressure adsorption assembly fixes the position of the electrode material strip by adsorption at the cutting station, which improves the cutting quality of the electrode and improves the film-making qualification rate.

[0018] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become apparent from the description below, or will be learned through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 A schematic diagram of the structure of a film-making device provided in an embodiment of the present application;

[0021] Figure 2 A schematic diagram of the arrangement of the visual recognition mechanism of the film-making device provided in an embodiment of the present application;

[0022] Figure 3 A schematic diagram of the arrangement of the cutting station and the unloading station of the film-making device provided in the embodiment of the present application;

[0023] Figure 4 for Figure 1 A partial enlarged view of the middle A;

[0024] Figure 5 A schematic diagram of the structure of a cutting plate of a film-making device provided in an embodiment of the present application;

[0025] Figure 6 A schematic diagram of the structure of a dust removal plate of a film-making device provided in an embodiment of the present application;

[0026] Figure 7 A cross-sectional view of a negative pressure adsorption component of a film-making device provided in an embodiment of the present application.

[0027] Icons: 100-film making device; 110-correction mechanism; 111-transverse driving assembly; 1111-transverse motor; 1112-transverse module; 1112-transverse guide rail assembly; 1113-transverse connecting plate; 120-lifting driving assembly; 121-lifting motor; 122-screw rod; 123-nut; 124-lifting connecting plate; 125-mounting plate; 126-lifting guide rail assembly; 127-bearing seat; 130-rotation driving assembly; 131-rotation motor; 132-rotation seat; 140-negative pressure adsorption mechanism; 141-negative pressure adsorption assembly; 142-negative pressure control assembly; 1421-negative pressure dust removal block; 1422-solenoid valve; 1423-negative pressure control module; 143-cutting station; 144 - unloading station; 145- cutting module; 1451- adsorption plate; 1452- adsorption hole; 1453- cutting groove; 1454- support plate; 1455- cutting plate; 1456- dust removal plate; 1457- first air port; 1458- second air port; 1459- dust removal groove; 146- cutting part; 1471- first air joint; 1472- second air joint; 1473- air slip ring; 1474- slip ring ventilation flange shaft; 1475- slip ring ventilation connecting plate; 1476- dust removal rotary air joint; 1477- front sealing plate; 1478- rear sealing plate; 1479- ventilation slope; 150- visual recognition mechanism; 200- pole piece strip; X- first horizontal direction; Y- second horizontal direction; Z- vertical direction. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations.

[0029] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application for which protection is sought, but merely represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present application.

[0030] In the prior art, pole pieces are mainly formed by cutting pole piece strips through hardware molds. Although this production process can cut the required pole piece shape according to demand, the production efficiency is very low, the material waste rate is high, and the mold is worn out after long-term use. Not only does the mold maintenance cost increase, but it also leads to more burrs on the pole pieces, reducing the production quality of the pole pieces, and further reducing the yield and safety performance of the battery.

[0031] like Figure 1 , Figure 2 and Figure 3 As shown, the film-making device 100 of the embodiment of the present application includes a deviation correction mechanism 110, a lifting drive assembly 120, a rotation drive assembly 130 and a negative pressure adsorption mechanism 140. The negative pressure adsorption mechanism 140 includes a negative pressure adsorption assembly 141. When the pole piece strip 200 passes through the cutting station 143, the negative pressure adsorption assembly 141 is used to adsorb the pole piece strip 200; the lifting drive assembly 120 is used to drive the negative pressure adsorption assembly 141 to move along the vertical direction Z; the rotation drive assembly 130 is used to drive the negative pressure adsorption assembly 141 to rotate around the first axis P. The lifting drive assembly 120 and the rotation drive assembly 130 jointly drive the negative pressure adsorption assembly 141 to switch between the cutting station 143 and the unloading station 144, so as to transfer the pole piece formed in the cutting station 143 to the unloading station 144.

[0032] When the pole piece strip 200 passes through the cutting station 143, the negative pressure adsorption component 141 not only carries the pole piece strip 200, but also vacuum adsorbs the pole piece strip 200 to fix the position of the pole piece strip 200. The cutting mechanism is arranged at the cutting station 143 to cut the pole piece strip 200 to form pole pieces, and the waste material continues to be transported.

[0033] In the film making device 100 of the embodiment of the present application, the lifting drive component 120 and the rotating drive component 130 jointly drive the negative pressure adsorption component 141 to switch between the cutting station 143 and the unloading station 144. The negative pressure adsorption component 141 adsorbs the electrode sheet strip 200 at the cutting station 143, and the cutting mechanism cuts the electrode sheet strip 200 to form electrode sheets. The negative pressure adsorption component 141 continues to adsorb the electrode sheets and transfers them to the unloading station 144, releasing the electrode sheets, and the electrode sheets fall naturally or are taken away by other robots. On the one hand, driven by the lifting drive component 120 and the rotating drive component 130, the negative pressure adsorption component 141 can not only transport the electrode strip 200 to the cutting station 143, but also adsorb the electrode formed by cutting and transfer it to the unloading station 144. It has a simple structure, a compact structure, and a short stroke, which simplifies the electrode transfer steps and improves the production efficiency. On the other hand, the negative pressure adsorption component 141 fixes the position of the electrode strip 200 by adsorption at the cutting station 143, which improves the cutting quality of the electrode and improves the production qualification rate.

[0034] In some embodiments of the present application, the film making device 100 further includes a deviation correction mechanism 110 configured to adjust the position of the negative pressure adsorption component 141 to ensure the position accuracy of the pole piece strip 200 on the negative pressure adsorption component 141 .

[0035] It can be understood that the positioning accuracy of the pole piece strip 200 on the negative pressure adsorption component 141 means that the negative pressure adsorption component 141 is provided with at least one cutting portion 146, and the cutting portion 146 corresponds to the contour of the pole piece. Each cutting portion 146 corresponds to a pole piece, and the pole piece is adsorbed and formed after the cutting action is completed. The pole piece strip 200 covers each cutting portion 146 to ensure that the cutting mechanism can cut each cutting portion 146 to form a complete pole piece.

[0036] Through this arrangement, the position of the negative pressure adsorption component 141 can be adjusted to ensure the position accuracy of the electrode strip 200 on the negative pressure adsorption component 141, reduce the possibility of electrode shape defects, and improve the electrode production qualification rate.

[0037] In some embodiments of the present application, the correction mechanism 110 adjusts the position of the negative pressure adsorption component 141 to ensure that the pole piece strip 200 covers each cutting portion 146, and the cutting mechanism corrects the deviation synchronously according to the position of the negative pressure adsorption component 141 to cut the pole piece strip 200; in other embodiments, the cutting mechanism may also be fixed, and the negative pressure adsorption component 141 first moves to the position where the pole piece strip 200 can cover each cutting portion 146, and then adsorbs the pole piece strip 200 and locally pulls the pole piece strip 200 along the bandwidth direction to move, so that the cutting mechanism matches the position of the negative pressure adsorption component 141.

[0038] like Figure 1 and Figure 2 As shown, in some embodiments of the present application, the correction mechanism 110 includes a transverse driving assembly 111, which is used to drive the negative pressure adsorption assembly 141 to move along the first horizontal direction X; wherein the first horizontal direction X is arranged parallel to the bandwidth direction of the pole piece strip 200.

[0039] The width direction of the pole piece strip 200 extends along the first horizontal direction X, and the conveying direction of the pole piece strip 200 extends along the second horizontal direction Y. The correction mechanism 110 adjusts the position of the negative pressure adsorption component 141 along the first horizontal direction X to ensure the position accuracy of the pole piece strip 200 on the negative pressure adsorption component 141.

[0040] like Figure 1 As shown, as an example form, the transverse driving assembly 111 includes a transverse motor 1111 and a transverse module 1112. The actuator end of the transverse module 1112 slides with the transverse connecting plate 1113 along the first horizontal direction X through the transverse guide rail assembly 1112. The transverse motor 1111 is used to drive the actuator end of the transverse module 1112 to move along the first horizontal direction X. The transverse module 1112 can be a nut-screw mechanism, a chain mechanism, etc.; the transverse connecting plate 1113 is used to directly or indirectly install the negative pressure adsorption mechanism 140.

[0041] Through this arrangement, the position of the negative pressure adsorption assembly 141 can be adjusted along the bandwidth direction of the pole piece strip 200 to ensure the position accuracy of the pole piece strip 200 on the negative pressure adsorption assembly 141 .

[0042] In other embodiments, the correction mechanism 110 may also have correction functions in other directions.

[0043] In some embodiments of the present application, the production device 100 also includes a visual recognition mechanism 150, which is arranged at the cutting station 143 and is used to detect the position of the pole piece strip 200. The correction mechanism 110 is configured to adjust the position of the negative pressure adsorption component 141 according to the detection result of the visual recognition mechanism 150.

[0044] Through this setting, the correction mechanism 110 cooperates with the visual recognition mechanism 150 to quickly and accurately adjust the position of the negative pressure adsorption component 141, thereby ensuring the position accuracy of the electrode material strip 200 on the negative pressure adsorption component 141, reducing the possibility of electrode shape defects, and improving the electrode production qualification rate and production efficiency.

[0045] like Figure 2 As shown, in some embodiments of the present application, two visual recognition mechanisms 150 are provided, and along the running direction of the pole piece tape 200 , the two visual recognition mechanisms 150 are respectively arranged on both sides of the negative pressure adsorption component 141 .

[0046] The pole piece strip 200 is transported along the second horizontal direction Y. Along the second horizontal direction Y, two visual recognition mechanisms 150 are respectively arranged on both sides of the cutting station 143 to detect the position of the pole piece strip 200 from both sides of the cutting station 143 .

[0047] The visual recognition mechanism 150 is a common CCD camera, and may also be other forms of visual detection devices.

[0048] This arrangement can provide sufficient installation space for the cutting mechanism and improve the position detection accuracy of the pole piece strip 200 .

[0049] In other embodiments, only one visual recognition mechanism 150 may be provided.

[0050] like Figure 1 As shown, in some embodiments of the present application, the lifting drive assembly 120 is disposed at the execution end of the deviation correction mechanism 110, and is used to drive the negative pressure adsorption assembly 141 to move along the vertical direction Z.

[0051] As an example form, the lifting drive assembly 120 includes a lifting motor 121, a screw rod 122 and a nut 123, the lifting connection plate 124 is fixedly mounted on the lateral connection plate 1113, the lifting motor 121 is mounted on the lifting connection plate 124, the screw rod 122 extends along the vertical direction Z, the two ends of the screw rod 122 are respectively supported on the lifting connection plate 124 by a bearing seat 127, the nut 123 is threadedly matched with the screw rod 122, the nut 123 is connected to the mounting plate 125, and the mounting plate 125 and the lifting connection plate 124 are slidably matched along the vertical direction Z through the lifting guide rail assembly 126. The lifting motor 121 drives the screw rod 122 to rotate, thereby driving the nut 123 to move along the vertical direction Z, and then driving the negative pressure adsorption assembly 141 to rise and fall through the mounting plate 125.

[0052] The height position of the negative pressure adsorption mechanism 140 can be adjusted by the lifting drive assembly 120 to adapt to the height position of the pole piece strip 200 , so that the negative pressure adsorption assembly 141 can receive the pole piece strip 200 .

[0053] like Figure 1 and Figure 2 As shown, in some embodiments of the present application, the rotation drive assembly 130 is disposed at the execution end of the lifting drive assembly 120, and is used to drive the negative pressure adsorption assembly 141 to rotate around the first axis P.

[0054] The rotation drive assembly 130 includes a rotation motor 131 and a rotation seat 132 . The rotation motor 131 is mounted on the mounting plate 125 . The rotation motor 131 drives the rotation seat 132 to rotate around the first axis P. The negative pressure adsorption assembly 141 is mounted on the rotation seat 132 and rotates around the first axis P driven by the rotation motor 131 .

[0055] Through this arrangement, the negative pressure adsorption component 141 can be driven to rotate around the first axis P, thereby adapting to the angular position of the pole piece strip 200 , so that the negative pressure adsorption component 141 can receive the pole piece strip 200 .

[0056] In some embodiments of the present application, the cutting station 143 and the blanking station 144 are circumferentially spaced around the first axis P.

[0057] like Figure 2 and Figure 3 As shown, in some embodiments of the present application, the first axis P extends along the first horizontal direction X, the cutting station 143 is arranged on the upper side of the negative pressure adsorption component 141, and the unloading station 144 is arranged on the lower side of the negative pressure adsorption component 141, and the cutting station 143 and the unloading station 144 are both fixed docking positions, which are arranged at an angle of 180° around the first axis P.

[0058] Through this arrangement, the negative pressure adsorption component 141 can be simply and reliably switched between the cutting station 143 and the unloading station 144, and the cutting station 143 and the unloading station 144 are located on opposite sides of the negative pressure adsorption component 141, with sufficient installation space.

[0059] It should be mentioned that the lifting drive assembly 120 cooperates with the rotating drive assembly 130 to drive the negative pressure adsorption assembly 141 to switch between the cutting station 143 and the unloading station 144, while avoiding the corners of the negative pressure adsorption assembly 141 from interfering with other devices. Specifically, the negative pressure adsorption assembly 141 first descends a certain height space along the vertical direction Z from the height position of the cutting station 143, and then rotates around the first axis P, so that there is enough rotation space to avoid other devices while docking with the unloading station 144.

[0060] In other embodiments, the cutting station 143 and the blanking station 144 may also be arranged at other angles around the first axis P; for example, the angle between the cutting station 143 and the blanking station 144 around the first axis P may also be 60°, 90°, 150°, etc.

[0061] like Figure 4 As shown, in some embodiments of the present application, the negative pressure adsorption component 141 is provided with a plurality of cutting modules 145, and the plurality of cutting modules 145 are circumferentially spaced around the first axis P; when one of the plurality of cutting modules 145 is docked with the cutting station 143, one of the remaining cutting modules 145 is docked with the unloading station 144.

[0062] As an example, the negative pressure adsorption component 141 is a square column structure around the first axis P, and there are four cutting modules 145, which correspond to the four side walls of the square column structure respectively, and the four cutting modules 145 have the same structure; based on the aforementioned embodiment in which the cutting station 143 and the unloading station 144 are arranged at an angle of 180°, the upward cutting module 145 docks with the cutting station 143 while the downward cutting module 145 docks with the unloading station 144, and the cutting module 145 on one side waits for the next beat to arrive at the cutting station 143, and the cutting module 145 on the other side carries the pole piece and waits for the next beat to arrive at the unloading station 144. In other embodiments, the number of cutting modules 145 can also be two, three, six, and so on.

[0063] With this arrangement, while one cutting module 145 receives the electrode sheet strip 200 for cutting after deviation correction, another cutting module 145 releases the electrode sheet to complete the unloading action, which can shorten the action rhythm and improve the production efficiency.

[0064] In other embodiments, the negative pressure adsorption component 141 may also include only one cutting module 145 .

[0065] In some embodiments of the present application, the cutting module 145 is provided with a plurality of cutting portions 146 , and each cutting portion 146 corresponds to a pole piece.

[0066] As an example, each cutting module 145 includes four cutting parts 146, and the four cutting parts 146 are arranged in a square matrix; in other embodiments, the number of the cutting parts 146 can also be three, six, eight, etc.

[0067] With this arrangement, multiple pole pieces can be cut at one time at the cutting station 143 , and multiple pole pieces can be cut at one time at the cutting station 144 , thereby improving the production efficiency of the pole pieces.

[0068] In other embodiments, the cutting module 145 may also include only one cutting portion 146 .

[0069] like Figure 5 and Figure 6 As shown, in some embodiments of the present application, the cutting module 145 is provided with an adsorption plate 1451, the adsorption plate 1451 is provided with an adsorption hole 1452, the adsorption hole 1452 is used to adsorb the pole piece strip 200 or the pole piece, the edge of the adsorption plate 1451 is provided with a cutting groove 1453, the shape of the cutting groove 1453 matches the contour of the pole piece, and the adsorption plate 1451 and the corresponding cutting groove 1453 are configured to form a cutting portion 146.

[0070] The cutting module 145 includes a support plate 1454 and a cutting plate 1455. The support plate 1454 is fixedly connected to the rotating seat 132, and rotates around the first axis P driven by the rotating seat 132. The support plate 1454 is provided with a mounting groove, and the cutting plate 1455 is embedded in the mounting groove. Four cutting parts 146 are provided on the cutting plate 1455. A plurality of adsorption holes 1452 are provided on the adsorption plate 1451, so as to adsorb the electrode strip 200 or the electrode by negative pressure.

[0071] By providing the cutting groove 1453, the laser of the cutting mechanism can be not blocked within the focal depth range when cutting along the preset shape trajectory, thereby ensuring the cutting quality of the pole piece.

[0072] In some embodiments of the present application, a negative pressure channel is provided inside the cutting module 145, and the adsorption holes 1452 of multiple cutting parts 146 of the same cutting module 145 are connected to each other through the negative pressure channel, while the negative pressure channels of different cutting modules 145 are not connected to each other.

[0073] like Figure 5 , Figure 6 and Figure 7As shown, specifically, the cutting module 145 also includes a dust removal plate 1456. The dust removal plate 1456 is located on the inner side of the cutting plate 1455. After the cutting plate 1455 and the dust removal plate 1456 are buckled together, an independent negative pressure cavity is formed for each cutting portion 146, and the adsorption plate 1451 serves as a part of the side wall of the negative pressure cavity. The dust removal plate 1456 has a connected air passage inside, and a first air port 1457 and a second air port 1458 are formed on the surface. The first air port 1457 extends to the negative pressure cavity to provide a negative pressure environment for the negative pressure cavity. The second air port 1458 is installed with a first air joint 1471.

[0074] The negative pressure adsorption mechanism 140 also includes an air slip ring 1473, a slip ring ventilation flange shaft 1474, a slip ring ventilation connecting plate 1475 and a dust removal rotating air joint 1476. The air slip ring 1473 is connected to the negative pressure control component 142 described below. The slip ring ventilation flange shaft 1474 passes through the interior of the rotating motor 131, and the air slip ring 1473 and the slip ring ventilation connecting plate 1475 are connected for ventilation. The slip ring ventilation connecting plate 1475 is provided with a ventilation ring groove. The second air joint 1472 is installed in the ventilation ring groove. The second air joint 1472 rotates synchronously with the first air joint 1471 and is ventilation-connected.

[0075] Each cutting module 145 is connected to the corresponding second gas connector 1472 through a first gas connector 1471 to realize the independent setting of each other's negative pressure channel. For example, a solenoid valve can be installed on the air pipe of the first gas connector 1471 and the corresponding second gas connector 1472 to independently control the opening and closing of the gas path of each cutting module 145.

[0076] As an example form of a negative pressure chamber, the cutting plate 1455 is provided with a recessed structure inside the contour size range of the pole piece, and the dust removal plate 1456 is provided with a sealing platform inside the cutting groove 1453 of the adsorption plate 1451. After the cutting plate 1455 and the dust removal plate 1456 are buckled together, the sealing platform is embedded in the recessed structure to achieve the circumferential sealing of the negative pressure chamber.

[0077] Through this arrangement, a negative pressure channel can be simply and reliably formed, and each cutting module 145 is independently controlled to flexibly adsorb the pole piece strip 200 or release the pole piece.

[0078] In other embodiments, the negative pressure channel may also be formed by other structures.

[0079] like Figure 7 As shown, further, the cutting module 145 is also provided with a dust removal channel, which can perform dust removal by vacuum adsorption during the cutting process.

[0080] Specifically, the negative pressure adsorption mechanism 140 also includes a front sealing plate 1477 and a rear sealing plate 1478, and the front sealing plate 1477, the rear sealing plate 1478 and the cutting plate 1455 and the dust removal plate 1456 of the cutting module 145 enclose a dust removal chamber. The dust removal plate 1456 is provided with a dust removal groove 1459, and the air path between the dust removal groove 1459 and the cutting groove 1453 is connected, and a ventilation slope 1479 is provided between the sealing platforms corresponding to the two adjacent cutting parts 146 to ensure that the dust removal chamber of each cutting module 145 is connected as a whole. The dust removal chamber extends to the outside through the dust removal rotary air joint 1476, the dust removal pipe, the slip ring ventilation connecting plate 1475, the slip ring ventilation flange shaft 1474 and the center hole of the air slip ring 1473 and is connected to the negative pressure dust removal block 1421, and finally the dust is discharged to the outside, and the solenoid valve 1422 controls the on and off of the dust removal channel.

[0081] Through this arrangement, the dust in the cutting station 143 can be adsorbed during the cutting process, thereby improving the cutting quality of the electrode.

[0082] In some embodiments of the present application, the negative pressure adsorption mechanism 140 further includes a negative pressure control component 142 for providing a negative pressure gas source to the negative pressure adsorption component 141 .

[0083] The negative pressure control component 142 includes a negative pressure control module 1423, which is fixed to the mounting plate 125. The negative pressure control module 1423 is used to provide a negative pressure gas source to the negative pressure adsorption component 141, thereby achieving vacuum adsorption of the electrode strip 200 and releasing the electrode.

[0084] In other embodiments, the negative pressure control component 142 may also be disposed on other brackets and may not rise or fall synchronously with the negative pressure adsorption component 141 .

[0085] The working process of the film-making device 100 of the embodiment of the present application is as follows:

[0086] The two visual recognition mechanisms 150 detect the position of the pole piece strip 200, and the transverse drive assembly 111 drives the negative pressure adsorption assembly 141 to move along the first horizontal direction X to ensure that the pole piece strip 200 covers each cutting portion 146 of the cutting module 145 at the cutting station 143;

[0087] The cutting part 146 at the cutting station 143 absorbs the electrode strip 200, and the cutting mechanism cuts the electrode strip 200 to form four electrode pieces. Each cutting part 146 continues to absorb the electrode piece. During the cutting process, the dust removal chamber absorbs the dust generated during the cutting process through negative pressure.

[0088] After the lifting drive assembly 120 drives the negative pressure adsorption assembly 141 to descend in the vertical direction Z, the rotation drive assembly 130 drives the negative pressure adsorption assembly 141 to rotate 180° around the first axis P, and the cutting module 145 carries four pole pieces to the unloading station 144, and the cutting part 146 closes the vacuum to release the pole pieces, completing the unloading of the pole pieces;

[0089] The rotation driving assembly 130 drives the negative pressure adsorption assembly 141 to rotate 180° around the first axis P, and the next cutting module 145 arrives at the cutting station 143, and the above steps are repeated.

[0090] The electrode sheet is cut using the production device 100 of the embodiment of the present application. Before cutting, the negative pressure adsorption component 141 is corrected and compensated to ensure that each cutting portion 146 is covered by the electrode material strip 200, thereby improving the production quality. The four cutting modules 145 always maintain two material storage positions and two empty material positions, and cycle alternately in sequence, thereby shortening the production cycle and improving the production efficiency.

[0091] It should be noted that, in the absence of conflict, the features in the embodiments of this application may be combined with each other.

[0092] The above description is only the preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A film making device (100), characterized in that: include: A negative pressure adsorption mechanism (140) comprises a negative pressure adsorption component (141), and when the electrode strip passes through a cutting station (143), the negative pressure adsorption component (141) is used to adsorb the electrode strip; A lifting drive component (120) is used to drive the negative pressure adsorption component (141) to move in a vertical direction; The rotary drive assembly (130) is used to drive the negative pressure adsorption assembly (141) to rotate around a first axis. The lifting drive assembly (120) and the rotary drive assembly (130) jointly drive the negative pressure adsorption assembly (141) to switch between a cutting station (143) and a material unloading station (144) to transfer the electrode sheet formed at the cutting station (143) to the material unloading station (144).

2. The film making device (100) according to claim 1, characterized in that: The cutting station (143) and the blanking station (144) are arranged at intervals in the circumferential direction around the first axis.

3. The film making device (100) according to claim 1, characterized in that: The negative pressure adsorption component (141) is provided with a plurality of cutting modules (145), and the plurality of cutting modules (145) are arranged at intervals in the circumferential direction around the first axis; When one of the cutting modules (145) of the plurality of cutting modules (145) is docked with the cutting station (143), one of the remaining cutting modules (145) is docked with the unloading station (144).

4. The film-making device (100) according to claim 3, characterized in that: The cutting module (145) is provided with a plurality of cutting portions (146), and each cutting portion (146) corresponds to a pole piece.

5. The film making device (100) according to claim 4, characterized in that: The cutting module (145) is provided with an adsorption plate (1451), the adsorption plate (1451) is provided with an adsorption hole (1452), the adsorption hole (1452) is used to adsorb the electrode strip or the electrode, the edge of the adsorption plate (1451) is provided with a cutting groove (1453), the shape of the cutting groove (1453) matches the contour of the electrode, and the adsorption plate (1451) and the corresponding cutting groove (1453) are configured to form a cutting portion (146).

6. The film-making device (100) according to claim 3, characterized in that: A negative pressure channel is provided inside the cutting module (145); the adsorption holes of multiple cutting parts (146) of the same cutting module (145) are connected to each other through the negative pressure channel, and the negative pressure channels of different cutting modules (145) are not connected to each other.

7. The film-making device (100) according to claim 1, characterized in that: The film-making device (100) further comprises: The deviation correction mechanism (110) is configured to adjust the position of the negative pressure adsorption component (141).

8. The film making device (100) according to claim 7, characterized in that: The deviation correction mechanism (110) comprises: The transverse driving component (111) is used to drive the negative pressure adsorption component (141) to move along the bandwidth direction of the pole piece strip.

9. The film-making device (100) according to claim 7, characterized in that: The film-making device (100) further comprises: The visual recognition mechanism (150) is arranged at the cutting station (143) and is used to detect the position of the electrode strip, and the deviation correction mechanism (110) is configured to adjust the position of the negative pressure adsorption component (141) according to the detection result of the visual recognition mechanism (150).

10. The film making device (100) according to claim 9, characterized in that: Two visual recognition mechanisms (150) are provided, and along the running direction of the electrode material strip, the two visual recognition mechanisms (150) are respectively arranged on both sides of the negative pressure adsorption component (141).

11. The film making device (100) according to claim 1, characterized in that: The negative pressure adsorption mechanism (140) further comprises: The negative pressure control component (142) is used to provide a negative pressure gas source to the negative pressure adsorption component (141).

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