Lithium battery pole piece powder removing device

Abstract

The utility model discloses a lithium battery pole piece dust removal device, including connecting plate, rolling subassembly and dust removal subassembly, the rolling subassembly is provided with rubber covered roller for rolling contact pole piece on pole piece adsorption subassembly, the rubber covered roller is connected with the connecting plate, the dust removal subassembly includes the dust removal head, the dust removal head is connected with the connecting plate, the dust removal head is connected with the connecting plate. An ultrasonic generation cavity and two vacuum adsorption cavities are formed in the dust removal head, the ultrasonic generation cavity is connected with a fan and used for providing clean air into the ultrasonic generation cavity, and the two vacuum adsorption cavities are connected with a vacuumizing device and used for adsorbing dust. The pole piece dust removal device can well remove floating powder on the surface of a pole piece and burrs on the edge of the pole piece, greatly improves the dust removal rate of the pole piece, does not damage the surface of the pole piece, is good in consistency, can effectively improve the dust removal efficiency of the pole piece, and saves manpower.

Description

Technical Field

[0001] The utility model relates to dust removal, in particular to a powder removing device for lithium battery electrode sheets. Background Art

[0002] During the die-cutting and forming process of lithium battery electrode sheets, burrs and dust are easily generated, which will reduce the energy density of the battery cells. At the same time, it may cause piercing and internal short circuits, affecting safety and reliability and reducing the product yield.

[0003] The existing method mainly stacks multiple electrode sheets manually and then uses a soft brush to clean the edges of the electrode sheets to remove the floating powder and burrs on the edges. This method is inefficient, the dust removal efficiency is relatively low, and there is a risk of damaging the electrode sheets during manual operation. At the same time, the floating powder on the surface of the electrode sheets cannot be effectively removed. Summary of the Utility Model

[0004] To solve the defects of the above-mentioned existing technologies, the utility model provides a powder removing device for lithium battery electrode sheets, which can well remove the floating powder on the surface of the electrode sheets and the burrs on the edges of the electrode sheets, greatly improve the dust removal rate of the electrode sheets, will not damage the surface of the electrode sheets, has good consistency, and can effectively improve the efficiency of powder removal of the electrode sheets and save labor.

[0005] To achieve the above technical purpose, the utility model adopts the following technical scheme: A powder removing device for lithium battery electrode sheets, including a connecting plate, a rolling press assembly and a dust removal assembly. The rolling press assembly is provided with a rubber roller for rolling contact with the electrode sheets on the electrode sheet adsorption assembly. The rubber roller is connected to the connecting plate. The dust removal assembly includes a dust removal head, and the dust removal head is connected to the connecting plate. An ultrasonic generating cavity and two vacuum adsorption cavities are opened in the dust removal head. The ultrasonic generating cavity is connected with a fan for providing clean air to the ultrasonic generating cavity. The two vacuum adsorption cavities are connected with a vacuum pumping device for adsorbing dust.

[0006] The rolling press assembly is further provided with elastic floating members, a fixing plate and a mounting plate. There are two elastic floating members, and the upper ends are arranged on the connecting plate. The two ends of the fixing plate are connected to the lower ends of the elastic floating members. Two mounting plates are mounted on the lower surface of the fixing plate. The two ends of the rubber roller are respectively mounted on the two mounting plates.

[0007] The dust removal assembly includes a cover plate, and the cover plate covers the upper surface of the dust removal head to cover the ultrasonic generating cavity and the two vacuum adsorption cavities. The cover plate is provided with a through hole, and the through hole communicates with the two vacuum adsorption cavities. An upper cover is arranged on the cover plate, and the upper cover is provided with two adsorption tubes. The adsorption tubes are communicated with the two vacuum adsorption cavities through the through hole, and the adsorption tubes are used for connecting the vacuum pumping device.

[0008] The dust removal assembly further includes end plates located at both ends of the dust removal head, and a fan connecting pipe is installed on one of the end plates for connecting to a fan; the lower side of the end plate is used to fixedly connect the dust removal head, and the upper side is used to fixedly connect the upper cover.

[0009] The dust removal assembly further includes two fixing bars, and the two fixing bars are arranged on the cover plate.

[0010] The dust removal assembly further includes a lifting plate, the lifting plate is fixed to the upper surface of the upper cover, and the upper surface of the lifting plate is fixed to the connecting plate.

[0011] In summary, the present utility model has achieved the following technical effects:

[0012] The polar plate is cleaned by a combination of roll pressing and non-contact dust removal, and finally the purpose of removing powder from the polar plate is achieved. The device mainly consists of two parts. The front part is mainly composed of an anti-static rubber roller and an elastic floating mechanism, and the elastic floating mechanism can provide a stable roll pressure to the surface of the polar plate. This part mainly completes the roll pressing action on the polar plate, which can make the burrs and warping edges generated at the edge of the polar plate during the die-cutting process separate from the polar plate, and at the same time can eliminate the static electricity on the surface of the polar plate, improving the dust removal efficiency of the non-contact dust removal in the latter part. The latter part is mainly composed of a non-contact dust removal head, and there is an ultrasonic generating cavity and two vacuum adsorption cavities in the dust removal head. Through a powerful fan, clean gas with a certain pressure is provided to the ultrasonic generating cavity of the dust removal head, and the vacuum cavity of the dust removal head is used to adsorb dust. When the dust is separated from the surface of the polar plate, the ultrasonic reflection drives the dust up, and the moving dust is instantly sucked away by the vacuum adsorption cavity of the cleaning head, so as to achieve the purpose of removing powder from the surface of the polar plate. Description of the Drawings

[0013] Figure 1 is a side view of a lithium battery polar plate powder removal device;

[0014] Figure 2 is Figure 1 a three-dimensional schematic diagram of

[0015] Figure 3 is an exploded schematic diagram of the dust removal assembly;

[0016] Figure 4 is a cross-sectional schematic diagram of the dust removal assembly. Detailed Embodiments

[0017] The following further describes the present utility model in detail with reference to the accompanying drawings.

[0018] This specific embodiment is only an explanation of the present utility model, and it does not limit the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment without creative contributions as needed, but as long as it is within the scope of the claims of the present utility model, it is protected by the patent law.

[0019] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present utility model.

[0020] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, the meaning of "a plurality" is two or more, unless otherwise specifically defined.

[0021] In the present utility model, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected with", "fixed", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0022] In the present utility model, unless otherwise clearly specified and limited, the first feature being "on" or "under" the second feature can be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on" the second feature can be that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath" and "under" the second feature can be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature has a lower horizontal height than the second feature.

[0023] Embodiment 1:

[0024] Figure 1 It is a side view of a powder removing device for lithium battery electrode sheets, Figure 2 and Figure 1 is a three-dimensional schematic diagram, including a connecting plate 3, a rolling component 2 and a dust removal component 4. The rolling component 2 is provided with a rubber roller 201 for rolling contact with the electrode sheet on the electrode sheet adsorption component 1. The rubber roller 201 is connected to the connecting plate 3. The dust removal component 4 includes a dust removal head 401, and the dust removal head 401 is connected to the connecting plate 3. An ultrasonic generating cavity 402 and two vacuum adsorption cavities 403 are formed in the dust removal head 401. The ultrasonic generating cavity 402 is connected to a blower for providing clean air into the ultrasonic generating cavity, and the two vacuum adsorption cavities 403 are connected to a vacuum pumping device for adsorbing dust.

[0025] As Figure 2 shown, the rolling component 2 is further provided with elastic floating parts 204, a fixing plate 203 and a mounting plate 202. There are two elastic floating parts 204, and the upper ends are arranged on the connecting plate 3. Both ends of the fixing plate 203 are connected to the lower ends of the elastic floating parts 204. There are two mounting plates 202 mounted on the lower surface of the fixing plate 203, and both ends of the rubber roller 201 are respectively mounted on the two mounting plates 202.

[0026] The elastic floating parts 204 adopt a sleeve and spring structure, which can achieve up and down buffering to prevent the rubber roller 201 from damaging the electrode sheet.

[0027] Figure 3 is an exploded schematic diagram of the dust removal component. The dust removal head 401 is a cuboid structure, with an ultrasonic generating cavity 402 and two vacuum adsorption cavities 403 formed on the upper surface. The two vacuum adsorption cavities 403 are located on both sides of the ultrasonic generating cavity 402. The dust removal component 4 includes a cover plate 405, and the cover plate 405 covers the upper surface of the dust removal head 401 to cover the ultrasonic generating cavity 402 and the two vacuum adsorption cavities 403. The cover plate 405 is provided with a through hole 411, and the through hole 411 communicates with the two vacuum adsorption cavities 403. An upper cover 407 is arranged on the cover plate 405. The upper cover 407 is a U-shaped plate structure, forming a cavity above the dust removal head for facilitating vacuum adsorption. The upper cover 407 is provided with two adsorption pipes 408, and the adsorption pipes 408 communicate with the two vacuum adsorption cavities 403 through the through hole 411. The adsorption pipes 408 are used to connect the vacuum pumping device. When the vacuum pumping device works, the dust on the electrode sheet is adsorbed out through the two adsorption pipes 408, the cavity, the through hole 411 and the two vacuum adsorption cavities 403.

[0028] The dust removal assembly 4 further includes end plates 410 located at both ends of the dust removal head 401. One of the end plates 410 is provided with a fan connecting pipe 404 for connecting to a fan; the lower side of the end plate 410 is used to fixedly connect to the dust removal head 401, and the upper side is used to fixedly connect to the upper cover 407, so that the upper cover 407 forms a cavity.

[0029] The dust removal assembly 4 further includes two fixing strips 406, and the two fixing strips 406 are arranged on the cover plate 405. The upper cover 407 is fixed to the fixing strips 406 by bolts.

[0030] The dust removal assembly 4 further includes a lifting plate 409, the lifting plate 409 is fixed to the upper surface of the upper cover 407, and the upper surface of the lifting plate 409 is fixed to the connecting plate 3.

[0031] Embodiment 2:

[0032] In addition, Figure 4 is a schematic cross-sectional view of the dust removal assembly. The vacuum adsorption cavity 403 includes a wide vacuum cavity on the upper side and a narrow vacuum cavity on the lower side. The wide vacuum cavity communicates with the through hole 411, and the narrow vacuum cavity communicates with the outside for adsorbing dust. The ultrasonic generating cavity 402 includes a wide ultrasonic cavity on the upper side and a narrow ultrasonic cavity on the lower side. A pipe is arranged inside the wide ultrasonic cavity, and small holes are opened in the upper part of the pipe. The narrow ultrasonic cavity communicates with the outside for outputting ultrasonic waves. In the present invention, the relatively narrow narrow ultrasonic cavity and narrow vacuum cavity form a relatively large wind force, the ultrasonic effect is good, the vacuum adsorption effect is good, and the dust removal effect is good.

[0033] Working principle:

[0034] The pole piece adsorption assembly 1 adsorbs the pole piece by vacuum. The pole piece adsorption assembly 1 and the rolling assembly 2 and the dust removal assembly 4 perform relative movements. The rubber roller 201 presses the pole piece. During the rolling process, the burrs and dust on the pole piece are adhered away by the viscosity of the rubber roller itself. The rubber roller 201 cooperates with the elastic structure and will not damage the pole piece;

[0035] When the vacuum adsorption cavity of the dust removal head 401 is located above the pole piece, it adsorbs a part of the dust. The ultrasonic waves cause the vibration of the dust to separate the dust from the pole piece, which is convenient for the vacuum adsorption cavity to better adsorb the dust.

[0036] The above description is only a preferred embodiment of the present invention, and does not impose any form of limitation on the present invention. Any simple modification, equivalent change and modification made to the above embodiments based on the technical essence of the present invention all fall within the scope of the technical solution of the present invention.

Claims

1. A lithium battery pole piece powder removal device, characterized in that: The invention comprises a connecting plate (3), a rolling assembly (2) and a dust removal assembly (4), wherein the rolling assembly (2) is provided with a rubber roller (201) for rolling contact with the pole piece on the pole piece adsorption assembly (1), the rubber roller (201) is connected to the connecting plate (3), the dust removal assembly (4) comprises a dust removal head (401), the dust removal head (401) is connected to the connecting plate (3), an ultrasonic generating chamber (402) and two vacuum adsorption chambers (403) are provided in the dust removal head (401), the ultrasonic generating chamber (402) is connected to a fan, and the two vacuum adsorption chambers (403) are connected to a vacuum device for adsorbing dust.

2. A lithium battery pole piece powder removal device according to claim 1, characterized in that: The rolling assembly (2) is also provided with an elastic floating member (204), a fixed plate (203), and a mounting plate (202); the elastic floating members (204) are two in number and the upper ends are arranged on the connecting plate (3); the two ends of the fixed plate (203) are connected to the lower ends of the elastic floating members (204); the mounting plates (202) are two in number and are mounted on the lower surface of the fixed plate (203); and the two ends of the rubber roller (201) are respectively mounted on the two mounting plates (202).

3. A lithium battery pole piece powder removal device according to claim 1, characterized in that: The dust removal component (4) comprises a cover plate (405), wherein the cover plate (405) is arranged on the upper surface of the dust removal head (401) to cover the ultrasonic generating chamber (402) and the two vacuum adsorption chambers (403), the cover plate (405) is provided with a through hole (411), and the through hole (411) is connected to the two vacuum adsorption chambers (403), and an upper cover (407) is arranged on the cover plate (405), and the upper cover (407) is provided with two adsorption tubes (408), and the adsorption tubes (408) are connected to the two vacuum adsorption chambers (403) through the through hole (411), and the adsorption tubes (408) are used to connect a vacuum pumping device.

4. A lithium battery pole piece powder removal device according to claim 3, characterized in that: The dust removal assembly (4) further comprises end plates (410) located at both ends of the dust removal head (401), wherein one of the end plates (410) is installed with a fan connecting pipe (404) for connecting a fan; the lower side of the end plate (410) is used for fixedly connecting to the dust removal head (401), and the upper side is used for fixedly connecting to the upper cover (407).

5. A lithium battery pole piece powder removal device according to claim 3, characterized in that: The dust removal assembly (4) further comprises two fixing bars (406), wherein the two fixing bars (406) are arranged on the cover plate (405).

6. A lithium battery pole piece powder removal device according to claim 3, characterized in that: The dust removal component (4) also includes a hanging plate (409), wherein the hanging plate (409) is fixed to the upper surface of the upper cover (407), and the upper surface of the hanging plate (409) is fixed to the connecting plate (3).

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