Lithium sheet brushing mechanism

Abstract

The utility model discloses a lithium sheet brushing mechanism, which can automatically remove an oxide layer on the surface of a lithium sheet, improve the production efficiency, reduce the labor cost and ensure the consistency. The lithium sheet brushing mechanism comprises a lithium sheet placing table, a fixed bracket, a driving assembly and a lithium sheet brushing assembly; the lithium sheet placing table is provided with a plurality of lithium sheet placing grooves; the fixed bracket is arranged on the side edge of the lithium sheet placing table; the driving assembly is installed on the fixing support. The lithium sheet brushing assembly is installed on the driving assembly and driven by the driving assembly to move in the X-axis direction and the Y-axis direction. The lithium sheet brushing assembly comprises an installation support driven by the driving assembly, a brush rod installed in the installation support and a dust raising cover arranged above the installation support in a covering mode. A plurality of brushes are arranged on the surface of the brush rod; the dust raising cover is provided with a plurality of connecting pipes used for being connected with negative pressure equipment.

Description

TECHNICAL FIELD

[0001] The utility model relates to lithium battery technical field, especially point to a kind of brush lithium sheet mechanism. BACKGROUND

[0002] Lithium battery is a kind of using lithium metal or lithium alloy as positive or negative material, and using non-aqueous electrolyte solution battery.Lithium sheet is used to prepare lithium battery positive or negative material, and its surface quality is crucial to battery performance: in the process of charge and discharge, the substance that passivation film on the surface of lithium sheet is decomposed under the action of electric drive will move to positive, and preferentially react with lithium ion, and this irreversible side reaction can affect battery initial efficiency, affect the consistency of battery energy efficiency.Before being assembled into lithium battery, the surface of lithium sheet needs to be treated to remove the oxide layer and impurities on its surface, to avoid affecting the quality of battery.

[0003] In the prior art, the surface treatment of lithium sheet is generally carried out by manual brushing, which has low efficiency and high labor intensity, and there is no uniform standard for manual brushing of lithium sheet, so the consistency of products cannot be guaranteed. UTILITY MODEL CONTENT

[0004] The utility model aims to provide a kind of brush lithium sheet mechanism, solve the problems in the prior art, realize the oxidation layer on the surface of lithium sheet is removed automatically, improve production efficiency, reduce labor cost, and guarantee consistency.

[0005] In order to achieve the above purpose, the solution of the utility model is as follows:

[0006] A kind of brush lithium sheet mechanism, including lithium sheet placing table, fixed support, drive assembly and brush lithium sheet component;The lithium sheet placing table is provided with several lithium sheet placing grooves;The fixed support is arranged at the side of the lithium sheet placing table;The drive assembly is installed on the fixed support;The brush lithium sheet component is installed on the drive assembly, and the drive assembly is driven to move in X axis, Y axis direction, X axis direction is defined as the length or width direction of the lithium sheet placing table, Y axis direction is defined as the direction perpendicular to the lithium sheet placing table;The brush lithium sheet component includes mounting bracket driven by the drive assembly, brush rod installed in the mounting bracket, and dust cover cover above the mounting bracket;The surface of the brush rod is provided with several brushes;The dust cover is provided with several connecting pipes for connecting negative pressure equipment.

[0007] The brush lithium sheet component further includes a rotary motor, the brush rod is a roller brush, and a plurality of brushes are arranged on the peripheral surface of the brush rod;The brush rod is in transmission connection with the rotary motor, and the rotary motor drives the brush rod to rotate so that the clean brush is downward for cleaning the lithium sheet.

[0008] Preferably, the rotary motor is arranged above the dust hood, and the rotary motor has a rotating shaft parallel to the rotating shaft of the brush rod, and the rotating shafts are connected through a transmission gear set; the connecting pipe is arranged on one side of the dust hood.

[0009] Preferably, one end of the mounting bracket is provided with a detachable mounting plate which is fixed to the mounting bracket by screwing, and one end of the brush rod is rotatably fitted on the mounting plate.

[0010] The lithium sheet placing table is arranged below a base, the upper surface of the base is provided with a plurality of hollow support columns, the support columns are provided with silica gel suction cups connected to the lower surface of the lithium sheet placing table, and the silica gel suction cups of the support columns correspond to and communicate with the lithium sheet placing grooves one by one; the side surface of the base is provided with an adapter pipe for connecting a negative pressure device, and the support columns communicate with the adapter pipe.

[0011] The driving assembly comprises an X-axis sliding seat mounted on the fixed bracket, a Y-axis sliding seat slidably fitted on the X-axis sliding seat, a movable seat slidably fitted on the Y-axis sliding seat, an X-axis motor mounted on the end of the X-axis sliding seat, and a Y-axis motor mounted on the end of the Y-axis sliding seat; the X-axis motor is in transmission connection with the Y-axis sliding seat, and the Y-axis motor is in transmission connection with the movable seat; and the mounting bracket is fixed on the movable seat.

[0012] The brush lithium sheet mechanism further comprises a protective cover arranged on the overall surface of the lithium sheet placing table, the fixed bracket, the driving assembly and the brush lithium sheet assembly.

[0013] After the above technical scheme is adopted, the utility model has the following technical effects:

[0014] The utility model can drive the brush lithium sheet assembly to be lowered to the height that the brush can contact the lithium sheet on the lithium sheet placing table through the driving assembly, then drive the brush lithium sheet assembly to move horizontally along the length or width direction of the lithium sheet placing table, so that the brush automatically cleans the oxidation layer and impurities on the surface of the lithium sheet, and the purpose of automatically brushing the lithium sheet is achieved; in the cleaning process, the external negative pressure device can directly suck up the swept oxidation layer and impurities upward through the connecting pipe to avoid adhering to the subsequent lithium sheet, and the cleaning effect is ensured. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a perspective view of the embodiment of the utility model;

[0016] Figure 2 It is a front view of the embodiment of the utility model;

[0017] Figure 3 It is a top view of the embodiment of the utility model;

[0018] Figure 4 A perspective view of a support column of a specific embodiment of the present application;

[0019] Figure 5 A perspective view of a protective cover of a specific embodiment of the present application;

[0020] BRIEF DESCRIPTION OF DRAWINGS

[0021] 1-lithium sheet placement table; 11-lithium sheet placement groove;

[0022] 2-fixed support;

[0023] 3-driving assembly; 31-X-axis sliding seat; 32-Y-axis sliding seat; 33-movable seat; 34-X-axis motor; 35-Y-axis motor;

[0024] 4-lithium sheet brushing assembly; 41-mounting support; 411-mounting plate; 42-brushing rod; 421-brush; 43-dust raising cover; 431-connection pipe; 44-rotary motor; 45-transmission gear set;

[0025] 5-base; 51-support column; 511-silica gel suction cup; 52-adapting pipe;

[0026] 6-protective cover. DETAILED DESCRIPTION

[0027] In order to further explain the technical scheme of the present application, the present application will be described in detail below through specific embodiments.

[0028] Reference Figures 1-4 As shown in the figure, the present application discloses a lithium sheet brushing mechanism, which comprises a lithium sheet placement table 1, a fixed support 2, a driving assembly 3 and a lithium sheet brushing assembly 4;

[0029] The lithium sheet placement table 1 is provided with a plurality of lithium sheet placement grooves 11;

[0030] The fixed support 2 is arranged at the side edge of the lithium sheet placement table 1;

[0031] The driving assembly 3 is installed on the fixed support 2;

[0032] The lithium sheet brushing assembly 4 is installed on the driving assembly 3 and is driven by the driving assembly 3 to perform movement in the X-axis and Y-axis directions, wherein the X-axis direction is defined as the length or width direction of the lithium sheet placement table 1, and the Y-axis direction is defined as the direction perpendicular to the lithium sheet placement table 1;

[0033] The brush lithium sheet assembly 4 comprises a mounting bracket 41 driven by the driving assembly 3, a brush rod 42 mounted in the mounting bracket 41, and a dust cover 43 covering above the mounting bracket 41; the surface of the brush rod 42 is provided with a plurality of brushes 421; the dust cover 43 is provided with a plurality of connecting pipes 431 for connecting a negative pressure device.

[0034] Through the above scheme, the utility model can drive the brush lithium sheet assembly 4 to drop to the height where the brush 421 can contact the lithium sheet on the lithium sheet placing table 1 by the driving assembly 3, and then drive the brush lithium sheet assembly 4 to move horizontally along the length or width direction of the lithium sheet placing table 1, so that the brush 421 automatically cleans the oxidation layer and impurities on the surface of the lithium sheet, and the purpose of automatically brushing the lithium sheet is achieved; in the process of brushing the lithium sheet, the external negative pressure device can directly suck up the swept-off oxidation layer and impurities upwards through the connecting pipe 431 to avoid adhering to the subsequent lithium sheet, and the cleaning effect is ensured.

[0035] The following shows the specific embodiments of the utility model.

[0036] The brush lithium sheet assembly 4 further comprises a rotating motor 44, the brush rod 42 is a roller brush, and a plurality of brushes 421 are arranged on the circumferential surface of the brush rod 42 in multiple stations; the brush rod 42 is in transmission connection with the rotating motor 44, and the rotating motor 44 drives the brush rod 42 to rotate so that the clean brush 421 faces downward for cleaning the lithium sheet. Since the oxidation layer and impurities on the surface of the lithium sheet after scraping are small and may have viscosity, or are adhered to the brush 421 due to static electricity and the like, when the brush rod 42 is provided with the brush 421 on only one side, the brush rod 42 needs to be replaced more frequently, and the brush rod 42 is designed as a multi-station roller brush and is driven by the rotating motor 44 to rotate, so that the brush rod 42 can be rotated regularly according to the program to make the clean brush 421 face the lithium sheet, the brush 421 is prevented from being dirty and polluting the surface of the lithium sheet, and the replacement frequency of the brush rod 42 can be greatly reduced. In the above, the "multiple stations" refer to that a plurality of brushes 421 on the axial direction of the brush rod 42 form a group, and a plurality of groups are distributed at intervals along the circumferential direction of the brush rod 42, and when the rotating motor 44 drives the brush rod 42 to rotate, one group of brushes 421 faces downward.

[0037] Further, the rotating motor 44 is arranged above the dust cover 43, the rotating shaft of the rotating motor 44 is parallel to the rotating shaft of the brush rod 42, and the two are linked through a transmission gear set 45; and the connecting pipe 431 is located at one side of the dust cover 43.

[0038] Meanwhile, one end of the mounting bracket 41 is provided with a detachable mounting plate 411, the mounting plate 411 is fixed relative to the mounting bracket 41 by means of bolt locking or the like, and one end of the brush rod 42 is rotationally fitted on the mounting plate 411. When the mounting plate 411 is detached, the brush rod 42 can be quickly replaced to realize renewal.

[0039] The lithium sheet placing table 1 is provided below with a base 5, the upper surface of the base 5 is provided with a plurality of hollow support columns 51, the support columns 51 are provided with silica gel suction cups 511 connected to the lower surface of the lithium sheet placing table 1, the silica gel suction cups 511 of the support columns 51 are in one-to-one correspondence with and communicated with the lithium sheet placing grooves 11; the side surface of the base 5 is provided with an adapter pipe 52 for connecting a negative pressure device, and each support column 51 is communicated with the adapter pipe 52. Thus, the lithium sheet can be adsorbed in the lithium sheet placing groove 11 by negative pressure, so that the lithium sheet is more stable during the process of brushing the lithium sheet and will not fall out of the lithium sheet placing groove 11.

[0040] The driving assembly 3 comprises an X-axis sliding seat 31 mounted on the fixed support 2, a Y-axis sliding seat 32 slidingly fitted on the X-axis sliding seat 31, a movable seat 33 slidingly fitted on the Y-axis sliding seat 32, an X-axis motor 34 mounted on the end of the X-axis sliding seat 31, and a Y-axis motor 35 mounted on the end of the Y-axis sliding seat 32; the X-axis motor 34 is in transmission connection with the Y-axis sliding seat 32, and the Y-axis motor 35 is in transmission connection with the movable seat 33; and a mounting support 41 is fixed on the movable seat 33.

[0041] The utility model also includes the protective cover 6, cover is located lithium sheet placing table 1, fixed support 2, driving assembly 3 and brush lithium sheet subassembly 4 whole surface, play the role of isolation, avoid the dust particle that brush lithium sheet produced influences whole glove box environment, carry out separate isolation collection processing to the dust particle.

[0042] The above embodiment and drawing are not limited to the product shape and style of the utility model, and any ordinary skilled person in the art can make appropriate changes or modifications, which should be considered as not departing from the patent scope of the utility model.

Claims

1.A lithium sheet brushing mechanism, characterized in that: it comprises a lithium sheet placing table, a fixed support, a driving assembly and a lithium sheet brushing assembly; the lithium sheet placing table is provided with a plurality of lithium sheet placing grooves; the fixed support is arranged at the side of the lithium sheet placing table; the driving assembly is installed on the fixed support; the lithium sheet brushing assembly is installed on the driving assembly and is driven by the driving assembly to move in X-axis and Y-axis directions, the X-axis direction is defined as the length or width direction of the lithium sheet placing table, and the Y-axis direction is defined as the direction perpendicular to the lithium sheet placing table; the lithium sheet brushing assembly comprises a mounting support driven by the driving assembly, a brush rod installed in the mounting support, and a dust raising cover arranged above the mounting support; the surface of the brush rod is provided with a plurality of brushes; and the dust raising cover is provided with a plurality of connecting pipes for connecting a negative pressure device. 2.The lithium sheet brushing mechanism according to claim 1, characterized in that: the lithium sheet brushing assembly further comprises a rotary motor, the brush rod is a roller brush, the peripheral surface of the brush rod is provided with a plurality of brushes in multiple positions, the brush rod is in transmission connection with the rotary motor, and the rotary motor drives the brush rod to rotate so that the clean brushes face downward for cleaning the lithium sheet. 3.The lithium sheet brushing mechanism according to claim 2, characterized in that: the rotary motor is arranged above the dust raising cover, the rotation shaft of the rotary motor is parallel to the rotation shaft of the brush rod, and the two are linked through a transmission gear set; and the connecting pipes are located at one side of the dust raising cover. 4.The lithium sheet brushing mechanism according to claim 2, characterized in that: one end of the mounting support is provided with a detachable mounting plate, the mounting plate is fixed to the mounting support by means of bolt locking, and one end of the brush rod is rotationally fitted on the mounting plate. 5.The lithium sheet brushing mechanism according to claim 1, characterized in that: a base is arranged below the lithium sheet placing table, the upper surface of the base is provided with a plurality of hollow support columns, the support columns are provided with silica gel suction cups connected to the lower surface of the lithium sheet placing table, the silica gel suction cups of the support columns correspond to and communicate with the lithium sheet placing grooves one by one, and the side surface of the base is provided with a switching pipe for connecting a negative pressure device, and each support column communicates with the switching pipe. 6.The lithium sheet brushing mechanism according to claim 1, characterized in that: the driving assembly comprises an X-axis sliding seat installed on the fixed support, a Y-axis sliding seat slidingly fitted on the X-axis sliding seat, a movable seat slidingly fitted on the Y-axis sliding seat, an X-axis motor installed at the end of the X-axis sliding seat, and a Y-axis motor installed at the end of the Y-axis sliding seat; the X-axis motor is in transmission connection with the Y-axis sliding seat, and the Y-axis motor is in transmission connection with the movable seat; and the mounting support is fixed on the movable seat. 7.The lithium sheet brushing mechanism according to claim 1, characterized in that: it further comprises a protective cover arranged on the overall surface of the lithium sheet placing table, the fixed support, the driving assembly and the lithium sheet brushing assembly. ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​

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