Tabletting device

Abstract

The utility model 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] This application relates to the field of battery manufacturing technology, and more specifically, to a battery fabrication apparatus. Background Technology

[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 advantages such as high energy density, high cycle life, 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] In the battery manufacturing process, continuous strips of electrode material need to be cut to form electrode sheets, which are then stacked to form battery cells. Improving electrode sheet production efficiency and yield rate can significantly enhance battery production efficiency and safety performance. Utility Model Content

[0004] Therefore, this application proposes a film-making apparatus with high film-making efficiency and film quality rate.

[0005] Some embodiments of the electrode fabrication apparatus of this application include: a negative pressure adsorption mechanism, including a negative pressure adsorption component, which adsorbs the electrode strip when it passes through the cutting station; a lifting drive component, which drives the negative pressure adsorption component to move in a vertical direction; and a rotation drive component, which drives the negative pressure adsorption component to rotate around a first axis, the first axis extending in a first horizontal direction. The lifting drive component and the rotation drive component together drive the negative pressure adsorption component to switch between the cutting station and the unloading station, so as to transfer the electrode formed at the cutting station to the unloading station.

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

[0007] Optionally, the negative pressure adsorption component is provided with multiple cutting modules, which are circumferentially spaced around the first axis; when one of the multiple cutting modules is connected to the cutting station, one of the remaining cutting modules is connected to the unloading station.

[0008] Optionally, the cutting module has multiple cutting sections, each cutting section corresponding to one electrode.

[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 electrode strips or electrodes, the edge of the adsorption plate is provided with a cutting groove, the shape of the cutting groove matches the outline of the electrode, and the adsorption plate and the corresponding cutting groove constitute a cutting part.

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

[0011] Optionally, the film-making apparatus further includes a correction mechanism configured to adjust the position of the negative pressure adsorption component.

[0012] Optionally, the correction mechanism includes a lateral drive component for driving the negative pressure adsorption component to move along the bandwidth direction of the electrode strip.

[0013] Optionally, the electrode preparation device further includes: a visual recognition mechanism disposed at the cutting station for detecting the position of the electrode strip, and the 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 travel direction of the electrode 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 for providing a negative pressure gas source to the negative pressure adsorption component.

[0016] Compared with existing technologies, this solution has the following advantages:

[0017] In the electrode fabrication apparatus of this application embodiment, the lifting drive assembly and the rotary drive assembly jointly drive the negative pressure adsorption assembly to switch between the cutting station and the unloading station. At the cutting station, the negative pressure adsorption assembly adsorbs the electrode strip, and the cutting mechanism cuts the electrode strip to form electrodes. The negative pressure adsorption assembly continues to adsorb electrodes and transfers them to the unloading station, where the electrodes are released and either fall naturally or are picked up by other robotic arms. On one hand, driven jointly by the lifting drive assembly and the rotary drive assembly, the negative pressure adsorption assembly can both transport the electrode strip to the cutting station and adsorb the cut electrodes and transfer them to the unloading station. This design is simple, compact, and has a short stroke, simplifying the electrode transfer steps and improving fabrication efficiency. On the other hand, the negative pressure adsorption assembly fixes the position of the electrode strip at the cutting station by adsorption, improving the cutting quality of the electrodes and increasing the fabrication pass rate.

[0018] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of this application, 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 this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the structure of the film-making apparatus provided in the embodiments of this application;

[0021] Figure 2 A schematic diagram showing the arrangement of the visual recognition mechanism of the film-making apparatus provided in the embodiments of this application;

[0022] Figure 3 A schematic diagram showing the arrangement of the cutting station and the unloading station of the sheet-making apparatus provided in the embodiments of this application;

[0023] Figure 4 for Figure 1 A magnified view of a section at point A in the middle;

[0024] Figure 5 This is a schematic diagram of the structure of the cutting plate of the sheet-making apparatus provided in the embodiments of this application;

[0025] Figure 6 This is a schematic diagram of the structure of the dust removal plate of the film-making apparatus provided in the embodiments of this application;

[0026] Figure 7 This is a cross-sectional view of the negative pressure adsorption component of the tablet-making apparatus provided in the embodiments of this application.

[0027] Icons: 100-Film making device; 110-Correction mechanism; 111-Transverse drive assembly; 1111-Transverse motor; 1112-Transverse module; 1112-Transverse guide rail assembly; 1113-Transverse connecting plate; 120-Lifting drive assembly; 121-Lifting motor; 122-Lead screw; 123-Nut; 124-Lifting connecting plate; 125-Mounting plate; 126-Lifting guide rail assembly; 127-Bearing seat; 130-Rotation drive 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 - Material 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 section; 1471- First air connector; 1472- Second air connector; 1473- Air slip ring; 1474- Slip ring ventilation flange shaft; 1475- Slip ring ventilation connecting plate; 1476- Dust removal rotary air connector; 1477- Front sealing plate; 1478- Rear sealing plate; 1479- Ventilation slope; 150- Vision recognition mechanism; 200- Electrode strip; X- First horizontal direction; Y- Second horizontal direction; Z- Vertical direction. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0029] Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0030] In the existing technology, electrode strips are mainly cut into electrode sheets using metal molds. Although this process can cut the required electrode shape according to the needs, the production efficiency is very low, the material waste rate is high, and the molds are worn out after long-term use. This not only increases the mold maintenance cost, but also leads to more burrs on the electrode sheets, which reduces the production quality of the electrode sheets and thus reduces the yield and safety performance of the battery.

[0031] like Figure 1 , Figure 2 and Figure 3 As shown, the electrode fabrication apparatus 100 of this application embodiment includes a 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, which adsorbs the electrode strip 200 when it passes through the cutting station 143. The lifting drive assembly 120 drives the negative pressure adsorption assembly 141 to move in the vertical direction Z. The rotation drive assembly 130 drives 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 electrode formed at the cutting station 143 to the unloading station 144.

[0032] When the electrode strip 200 passes through the cutting station 143, the negative pressure adsorption component 141 carries the electrode strip 200 while also vacuum adsorbing the electrode strip 200 to fix its position. The cutting mechanism is set at the cutting station 143 to cut the electrode strip 200 to form an electrode. The waste material continues to be conveyed.

[0033] In the film-making apparatus 100 of this application embodiment, 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. The negative pressure adsorption assembly 141 adsorbs the electrode strip 200 at the cutting station 143. The cutting mechanism cuts the electrode strip 200 to form an electrode. The negative pressure adsorption assembly 141 continues to adsorb the electrode and transfers it to the unloading station 144 to release the electrode. The electrode falls naturally or is taken away by other robotic arms. On the one hand, driven by the lifting drive assembly 120 and the rotation drive assembly 130, the negative pressure adsorption assembly 141 can both transport the electrode strip 200 to the cutting station 143 and adsorb the cut electrode and transfer it to the unloading station 144. It has a simple structure, compact design, and short stroke, which simplifies the electrode transfer steps and improves the electrode production efficiency. On the other hand, the negative pressure adsorption assembly 141 fixes the position of the electrode strip 200 in the cutting station 143 by adsorption, which improves the cutting quality of the electrode and increases the electrode production qualification rate.

[0034] In some embodiments of this application, the electrode fabrication apparatus 100 further includes a correction mechanism 110 configured to adjust the position of the negative pressure adsorption assembly 141 to ensure the positional accuracy of the electrode strip 200 on the negative pressure adsorption assembly 141.

[0035] It is understandable that the positional accuracy of the electrode strip 200 on the negative pressure adsorption assembly 141 refers to the fact that the negative pressure adsorption assembly 141 is provided with at least one cutting part 146, the cutting part 146 corresponds to the outline of the electrode, each cutting part 146 corresponds to one electrode, and the electrode formed by adsorption after the cutting action is completed, the electrode strip 200 covers each cutting part 146 to ensure that the cutting mechanism can cut a complete electrode for each cutting part 146.

[0036] This configuration allows for adjustment of the position of the negative pressure adsorption component 141, thereby ensuring the positional accuracy of the electrode strip 200 on the negative pressure adsorption component 141, reducing the possibility of electrode shape defects, and improving the electrode production qualification rate.

[0037] In some embodiments of this application, the correction mechanism 110 adjusts the position of the negative pressure adsorption component 141 to ensure that the electrode strip 200 covers each cutting portion 146. The cutting mechanism corrects the deviation synchronously according to the position of the negative pressure adsorption component 141 and cuts the electrode strip 200. In other embodiments, the cutting mechanism may be fixedly set, and the negative pressure adsorption component 141 first moves to a position where the electrode strip 200 can cover each cutting portion 146. After adsorbing the electrode strip 200, it locally pulls the electrode strip 200 along the bandwidth direction to move it, so that the position of the cutting mechanism matches that of the negative pressure adsorption component 141.

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

[0039] The width direction of the electrode strip 200 extends along the first horizontal direction X, and the conveying direction of the electrode 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 positional accuracy of the electrode strip 200 on the negative pressure adsorption component 141.

[0040] like Figure 1 As shown, as an example, the transverse drive assembly 111 includes a transverse motor 1111 and a transverse module 1112. The actuator of the transverse module 1112 and the transverse connecting plate 1113 are slidably engaged along the first horizontal direction X via the transverse guide rail assembly 1112. The transverse motor 1111 is used to drive the actuator 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 mount the negative pressure adsorption mechanism 140.

[0041] With this configuration, the position of the negative pressure adsorption component 141 can be adjusted along the bandwidth direction of the electrode strip 200, ensuring the positional accuracy of the electrode strip 200 on the negative pressure adsorption component 141.

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

[0043] In some embodiments of this application, the film-making apparatus 100 further includes a visual recognition mechanism 150 disposed at the cutting station 143 for detecting the position of the electrode strip 200, and 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] With this configuration, the correction mechanism 110, in conjunction with the visual recognition mechanism 150, can quickly and precisely adjust the position of the negative pressure adsorption component 141, thereby ensuring the positional accuracy of the electrode 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 this application, two visual recognition mechanisms 150 are provided, and along the carrying direction of the electrode strip 200, the two visual recognition mechanisms 150 are respectively disposed on both sides of the negative pressure adsorption assembly 141.

[0046] The electrode strip 200 is conveyed along the second horizontal direction Y. Along the second horizontal direction Y, two vision recognition mechanisms 150 are respectively set on both sides of the cutting station 143 to detect the position of the electrode strip 200 from both sides of the cutting station 143.

[0047] The visual recognition mechanism 150 is a common CCD camera, but it can also be other forms of visual inspection devices.

[0048] This configuration allows for sufficient installation space for the cutting mechanism and improves the position detection accuracy of the electrode 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 this application, the lifting drive assembly 120 is disposed at the execution end of the 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, the lifting drive assembly 120 includes a lifting motor 121, a lead screw 122, and a nut 123. A lifting connecting plate 124 is fixedly mounted on a transverse connecting plate 1113. The lifting motor 121 is mounted on the lifting connecting plate 124. The lead screw 122 extends vertically in the Z direction, and both ends of the lead screw 122 are rotatably supported on the lifting connecting plate 124 via bearing seats 127. The nut 123 is threadedly engaged with the lead screw 122 and connected to a mounting plate 125. The mounting plate 125 and the lifting connecting plate 124 are slidably engaged vertically in the Z direction via a lifting guide rail assembly 126. The lifting motor 121 drives the lead screw 122 to rotate, thereby causing the nut 123 to move vertically in the Z direction, which in turn drives the negative pressure adsorption assembly 141 to rise and fall via the mounting plate 125.

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

[0053] like Figure 1 and Figure 2 As shown, in some embodiments of this 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 rotary drive assembly 130 includes a rotary motor 131 and a rotary base 132. The rotary motor 131 is mounted on the mounting plate 125 and drives the rotary base 132 to rotate around the first axis P. The negative pressure adsorption assembly 141 is mounted on the rotary base 132 and rotates around the first axis P under the drive of the rotary motor 131.

[0055] With this configuration, the negative pressure adsorption component 141 can be rotated around the first axis P, thereby adapting to the angular position of the electrode strip 200 and enabling the negative pressure adsorption component 141 to receive the electrode strip 200.

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

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

[0058] With this configuration, the negative pressure adsorption component 141 can be switched between the cutting station 143 and the unloading station 144 in a simple and reliable manner. The cutting station 143 and the unloading station 144 are located on opposite sides of the negative pressure adsorption component 141, providing sufficient installation space.

[0059] It should be mentioned that the lifting drive assembly 120, in conjunction with the rotation drive assembly 130, can prevent the sharp edges of the negative pressure adsorption assembly 141 from interfering with other devices while driving the negative pressure adsorption assembly 141 to switch between the cutting station 143 and the unloading station 144. Specifically, the negative pressure adsorption assembly 141 first descends a certain height along the vertical direction Z from its height position at the cutting station 143, and then rotates around the first axis P, thus having sufficient rotation space to avoid other devices while docking with the unloading station 144.

[0060] In other embodiments, the cutting station 143 and the unloading 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 unloading station 144 around the first axis P may be 60°, 90°, 150°, etc.

[0061] like Figure 4 As shown, in some embodiments of this application, the negative pressure adsorption component 141 is provided with a plurality of cutting modules 145, which are arranged circumferentially around the first axis P; when one of the multiple 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 has a square column structure surrounding the first axis P. Four cutting modules 145 are provided, each corresponding to one of the four side walls of the square column structure. All four cutting modules 145 have identical constructions. Based on the aforementioned embodiment where the cutting station 143 and the unloading station 144 are arranged at a 180° angle, the upward-facing cutting module 145 docks with the cutting station 143, while the downward-facing cutting module 145 docks with the unloading station 144. One side cutting module 145 waits for the next cycle to arrive at the cutting station 143, while the other side cutting module 145, carrying the electrode sheet, waits for the next cycle to arrive at the unloading station 144. In other embodiments, the number of cutting modules 145 can also be two, three, six, etc.

[0063] With this configuration, while one cutting module 145 receives the electrode strip 200 and cuts it after correction, another cutting module 145 releases the electrode to complete the feeding action, which can shorten the action cycle and improve the production efficiency.

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

[0065] In some embodiments of this application, the cutting module 145 is provided with a plurality of cutting portions 146, each cutting portion 146 corresponding to an electrode sheet.

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

[0067] With this configuration, multiple electrode sheets can be cut at the cutting station 143 in one go, and multiple electrode sheets can be unloaded at the unloading station 144 in one go, thereby improving the electrode sheet production efficiency.

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

[0069] like Figure 5 and Figure 6 As shown, in some embodiments of this application, the cutting module 145 is provided with an adsorption plate 1451, the adsorption plate 1451 is provided with adsorption holes 1452, the adsorption holes 1452 are used to adsorb the electrode strip 200 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 outline of the electrode, and the adsorption plate 1451 and the corresponding cutting groove 1453 constitute a cutting part 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 under the drive of 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. The cutting plate 1455 is provided with four cutting parts 146. The adsorption plate 1451 is provided with multiple adsorption holes 1452, thereby adsorbing the electrode strip 200 or the electrode sheet through negative pressure.

[0071] By setting the cutting groove 1453, the laser of the cutting mechanism can be unobstructed within the focal depth range when cutting along the preset shape trajectory, thus ensuring the cutting quality of the electrode sheet.

[0072] In some embodiments of this application, the cutting module 145 is provided with a negative pressure channel inside, 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 inside the cutting plate 1455. After the cutting plate 1455 and the dust removal plate 1456 are fastened together, an independent negative pressure chamber is formed for each cutting section 146. The adsorption plate 1451 serves as part of the sidewall of the negative pressure chamber. The dust removal plate 1456 has a communicating air passage inside and a first air port 1457 and a second air port 1458 are formed on its surface. The first air port 1457 extends into the negative pressure chamber to provide a negative pressure environment for the negative pressure chamber, and a first air connector 1471 is installed at the second air port 1458.

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

[0075] Each cutting module 145 is connected to a corresponding second air connector 1472 via a first air connector 1471 to achieve independent negative pressure channel settings for each module. For example, a solenoid valve can be installed on the air pipes of the first air connector 1471 and the corresponding second air connector 1472 to independently control the air flow of each cutting module 145.

[0076] As an example of a negative pressure chamber, the cutting plate 1455 has a recessed structure in the middle of the electrode outline size range, and the dust removal plate 1456 has 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 fastened together, the sealing platform and the recessed structure are fitted together to achieve a circumferential seal of the negative pressure chamber.

[0077] This configuration allows for the simple and reliable formation of a negative pressure channel, with each cutting module 145 independently controlled to flexibly adsorb electrode strips 200 or release electrodes.

[0078] In other embodiments, negative pressure channels can also be formed using other structures.

[0079] like Figure 7 As shown, the cutting module 145 is further provided with a dust removal channel, which can remove dust through 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. The front sealing plate 1477, the rear sealing plate 1478, the cutting plate 1455 of the cutting module 145, and the dust removal plate 1456 enclose a dust removal chamber. The dust removal plate 1456 is provided with a dust removal groove 1459, which is connected to the cutting groove 1453 by an air passage. A ventilation ramp 1479 is provided between the sealing platforms of two adjacent cutting sections 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 and connects to the negative pressure dust removal block 1421 through a dust removal rotary air connector 1476, a dust removal pipe, a slip ring ventilation connecting plate 1475, a slip ring ventilation flange shaft 1474, and the central hole of the air slip ring 1473, ultimately discharging the dust. The opening and closing of the dust removal channel is controlled by a solenoid valve 1422.

[0081] This configuration allows for the adsorption of dust at the cutting station 143 during the cutting process, thereby improving the quality of electrode cutting.

[0082] In some embodiments of this 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 assembly 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 assembly 141, thereby realizing vacuum adsorption of the electrode strip 200 and releasing the electrode.

[0084] In other embodiments, the negative pressure control component 142 may also be mounted on other supports and not move up and down synchronously with the negative pressure adsorption component 141.

[0085] The operation of the film-making apparatus 100 in this embodiment is as follows:

[0086] Two visual recognition mechanisms 150 detect the position of the electrode 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 electrode strip 200 covers each cutting section 146 of the cutting module 145 at the cutting station 143.

[0087] The cutting section 146 at the cutting station 143 adsorbs the electrode material strip 200. The cutting mechanism cuts the electrode material strip 200 to form four electrodes. Each cutting section 146 continues to adsorb the electrode. During the cutting process, the dust removal chamber sucks away 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 vertically in the Z direction, the rotation drive assembly 130 drives the negative pressure adsorption assembly 141 to rotate 180° around the first axis P. The cutting module 145 carries four electrode sheets to the unloading station 144. The cutting part 146 closes the vacuum to release the electrode sheets, completing the electrode unloading.

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

[0090] Using the electrode cutting apparatus 100 of this application embodiment to cut electrode sheets, the negative pressure adsorption component 141 is corrected and compensated before cutting to ensure that each cutting section 146 is covered by electrode sheet material strip 200, thereby improving the quality of electrode cutting; the four cutting modules 145 always maintain a state of two material storage positions and two empty material positions, and alternate in sequence, thereby shortening the production cycle and improving the efficiency of electrode cutting.

[0091] It should be noted that, where there is no conflict, the features in the embodiments of this application can be combined with each other.

[0092] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A film-making apparatus (100), characterized in that, include: The negative pressure adsorption mechanism (140) includes a negative pressure adsorption component (141), which is used to adsorb the electrode strip when the electrode strip passes through the cutting station (143). A lifting drive assembly (120) is used to drive the negative pressure adsorption assembly (141) to move in the vertical direction; A 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 the cutting station (143) and the unloading station (144) to transfer the electrode sheet formed at the cutting station (143) to the unloading station (144).

2. The film-making apparatus (100) according to claim 1, characterized in that, The cutting station (143) and the unloading station (144) are circumferentially spaced around the first axis.

3. The film-making apparatus (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 circumferentially around the first axis; While one of the multiple cutting modules (145) docks with the cutting station (143), one of the remaining cutting modules (145) docks with the unloading station (144).

4. The film-making apparatus (100) according to claim 3, characterized in that, The cutting module (145) is provided with multiple cutting sections (146), each cutting section (146) corresponding to one electrode.

5. The film-making apparatus (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 adsorption holes (1452), the adsorption holes (1452) are used to adsorb electrode strips or electrodes, the edge of the adsorption plate (1451) is provided with a cutting groove (1453), the shape of the cutting groove (1453) matches the outline of the electrode, and the adsorption plate (1451) and the corresponding cutting groove (1453) constitute a cutting part (146).

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

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

8. The film-making apparatus (100) according to claim 7, characterized in that, The correction mechanism (110) includes: A transverse drive assembly (111) is used to drive the negative pressure adsorption assembly (141) to move along the bandwidth direction of the electrode strip.

9. The film-making apparatus (100) according to claim 7, characterized in that, The film-making apparatus (100) further includes: A visual recognition mechanism (150) is provided at the cutting station (143) for detecting the position of the electrode strip, and 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).

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

11. The film-making apparatus (100) according to claim 1, characterized in that, The negative pressure adsorption mechanism (140) further includes: A 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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