Wiping dust removal device

Abstract

The utility model provides a wiping dust removal device capable of preventing foreign matters from accumulating on a vacuum suction plate to cause secondary pollution to an electrode slice. The wiping and dedusting device (1) is used for wiping and dedusting a laser cleaning area (L) in a laser-cleaned electrode slice (S), and comprises a vacuum suction plate (10) which comprises a first surface (11), a second surface and a suction hole (13) penetrating through the first surface (11) and the second surface; the negative pressure cavity (20) is fixedly connected to the second face side of the vacuum suction plate (10) and provided with a negative pressure channel (60) communicated with the adsorption hole (13), the vacuum suction plate (10) is provided with a suction plate notch (12), and when the laser cleaning area (L) is wiped, the vacuum suction plate (10) adsorbs the electrode slice (S) through the adsorption hole (13) so as to fix the electrode slice (S). And the plate suction notch (12) is close to the laser cleaning area (L) and is not covered by the electrode slice (S).

Description

Technical Field

[0001] The present invention relates to a wiping and dust removing device for wiping and removing dust from a laser cleaning area of ​​an electrode sheet after laser cleaning. Background Art

[0002] With the development of lithium battery manufacturing technology, laser cleaning technology has been widely used. For example, in the process of making lithium batteries, for electrode sheets after coating or cold pressing, laser cleaning technology is often used to quickly burn off the surface active materials in the specified area, exposing the metal conductive current collector in the middle to form a welding groove area for subsequent welding processes. However, after laser cleaning, dust will remain in the welding groove area of ​​the electrode sheet, which needs to be wiped off with a wiping device.

[0003] At present, the wiping device commonly used in the industry uses a non-woven fabric wiping head impregnated with cleaning liquid to clean the welding groove area of ​​the electrode sheet after laser cleaning. However, although this method significantly improves the cleaning effect of the welding groove area of ​​the electrode sheet, during the wiping process, repeated squeezing will occur between the wiping head and the vacuum suction plate that adsorbs and fixes the electrode sheet, causing the cleaning liquid impregnated in the non-woven fabric to be squeezed out and attached to the vacuum suction plate together with part of the dust that was not taken away by the non-woven fabric wiping head during wiping. If the foreign matter formed by the mixture of the cleaning liquid and dust is not cleaned in time, it will not only cause secondary pollution to the electrode sheet, but also block the adsorption holes of the vacuum suction plate, resulting in insufficient adsorption force of the vacuum suction plate and the inability to adsorb the electrode sheet. At this time, the equipment operator is required to shut down the equipment and clean the vacuum suction plate of the wiping device, which greatly increases the time and labor costs. Utility Model Content

[0004] The present disclosure is completed in view of the above-mentioned existing problems, and its purpose is to provide a wiping dust removal device that can prevent foreign matter from accumulating on the vacuum suction plate and causing secondary contamination to the electrode sheet.

[0005] A wiping and dust removal device in one embodiment of the present invention is used to wipe and remove dust from a laser cleaning area in an electrode sheet after laser cleaning, and is characterized in that it comprises: a vacuum suction plate, which includes a first surface, a second surface, and a suction hole that passes through the first surface and the second surface; and a negative pressure cavity, which is fixedly connected to the second surface side of the vacuum suction plate and has a negative pressure channel connected to the suction hole, the vacuum suction plate has a suction plate groove, when wiping the laser cleaning area, the vacuum suction plate fixes the electrode sheet by adsorbing the electrode sheet through the suction hole, and the suction plate groove is close to the laser cleaning area and is not covered by the electrode sheet.

[0006] In a wiping dust removal device according to one embodiment of the present disclosure, the laser cleaning area is located at one edge of the electrode sheet, and the suction plate notch is formed in an oblong shape extending along the one edge of the electrode sheet.

[0007] In a wiping dust removal device of one embodiment of the present invention, the width of the suction plate slot is 2mm-4mm, and the distance between one edge of the electrode sheet and the long side of the suction plate slot closest to the one edge, i.e., the distance between the slot sheets, is 2mm-4mm.

[0008] In the wiping dust removal device according to one embodiment of the present disclosure, the slot width is equal to the distance between the slot pieces.

[0009] In the wiping dust removal device of one embodiment of the present disclosure, the diameter of the adsorption hole is 0.3 mm-0.7 mm.

[0010] In a wiping dust removal device of one embodiment of the present invention, the adsorption holes are formed into a plurality of columns, and the adsorption holes in each column are arranged at equal intervals. An adsorption groove is provided on one side of the negative pressure chamber fixedly connected to the vacuum suction plate. The adsorption groove is formed into a shape corresponding to the column of the adsorption holes, and the various parts are connected to each other to constitute a part of the negative pressure channel. The width of the adsorption groove is greater than the aperture of the adsorption hole.

[0011] In a wiping dust removal device of one embodiment of the present invention, the negative pressure cavity is formed with an adsorption port connected to the adsorption groove on one end face. The adsorption port also constitutes a part of the negative pressure channel and is connected to a vacuum source outside the negative pressure cavity via a pipe.

[0012] In a wiping dust removal device of one embodiment of the present invention, the negative pressure cavity is further provided with a cavity notch on one side fixedly connected to the vacuum suction plate, and the cavity notch overlaps with the suction plate notch to form a part of the dust suction channel of the negative pressure cavity.

[0013] In a wiping dust removal device of one embodiment of the present invention, the negative pressure cavity is formed with a dust exhaust outlet on the end face close to the cavity groove, and the dust exhaust outlet also constitutes a part of the dust suction channel and is connected to the vacuum source outside the negative pressure cavity via a pipe.

[0014] In a wiping dust removal device according to one embodiment of the present disclosure, the vacuum suction plate is formed of a non-metallic material with a Rockwell hardness HRC of 50-60.

[0015] Utility Model Effect

[0016] The wiping dust removal device disclosed in the present invention can prevent foreign matter from accumulating on the vacuum suction plate and causing secondary contamination to the electrode sheet, and can also prevent the adsorption holes of the vacuum suction plate from being blocked. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional diagram of the wiping dust removal device disclosed in the present invention.

[0018] Figure 2 It is a top perspective view showing the positional relationship between the electrode sheet and the vacuum suction plate during wiping.

[0019] Figure 3 1 is a top view showing a negative pressure cavity in the wiping dust removal device of the present invention.

[0020] Description of Reference Numerals

[0021] 1. Wipe the dust removal device

[0022] S electrode sheet

[0023] LLaser cleaning area

[0024] 10 Vacuum suction plate

[0025] 11 Side 1

[0026] 12 suction plate notch

[0027] 13 adsorption holes

[0028] 20 Negative pressure chamber

[0029] 22 cavity notch

[0030] 23 adsorption tank

[0031] 25 Dust Exhaust Outlet

[0032] 26 adsorption ports

[0033] 50 Vacuum channels

[0034] 60 negative pressure channels. DETAILED DESCRIPTION

[0035] Hereinafter, the structures and functions of the various parts of the present disclosure will be described in detail with reference to the accompanying drawings. However, it should be understood that these descriptions are exemplary only and are not intended to limit the scope of the present disclosure. In addition, the accompanying drawings are for illustration purposes only and are not drawn to scale. In the following detailed description, for ease of explanation, many specific details are set forth to provide a comprehensive understanding of the embodiments of the present disclosure. However, it is obvious that one or more embodiments may also be implemented without these specific details. In addition, in the following description, descriptions of known structures and technologies are omitted to avoid unnecessary confusion of the concepts of the present disclosure.

[0036] The terms used herein are only for describing specific embodiments and are not intended to limit the present disclosure. The terms "having", "including", etc. used herein indicate the existence of the features, steps, operations and / or components, but do not exclude the existence or addition of one or more other features, steps, operations or components.

[0037] The wiping and dust removal device 1 disclosed in the present invention is used to wipe and remove dust from the laser cleaned area of ​​the electrode sheet after laser cleaning.

[0038] Figure 1 is a perspective view of the wiping dust removal device 1 disclosed in the present invention. Figure 1 As shown, the wiping dust removal device 1 includes a vacuum suction plate 10, a negative pressure cavity 20, a fixing seat 30, a fixing seat adjustment block 31, a vacuum solenoid valve 32, a vacuum air pressure valve 33, a vacuum pressure gauge 34 and a motor module 40. The vacuum suction plate 10, the negative pressure cavity 20, the vacuum solenoid valve 32 and the vacuum air pressure valve 33 are located on the fixing seat 30, and the vacuum suction plate 10 is fixed on the negative pressure cavity 20. The fixing seat 30 and the fixing seat adjustment block 31 are fixed on the motor module 40, and the fixing seat adjustment block 31 is located on one side of the fixing seat 30, and is used to adjust the fixing seat 100 left and right.

[0039] Figure 2 1 is a perspective view from above showing the positional relationship between the electrode sheet S and the vacuum suction plate 10 during wiping.

[0040] like Figure 2 As shown, the vacuum suction plate 10 includes a first surface 11, a second surface (not shown), and a suction hole 13 penetrating the first surface 11 and the second surface. The vacuum suction plate 10 has a suction plate notch 12. When wiping the laser cleaning area L, the vacuum suction plate 10 fixes the electrode sheet S by sucking the electrode sheet S through the suction hole 13. The suction plate notch 12 is close to the laser cleaning area L and is not covered by the electrode sheet S.

[0041] In this embodiment, foreign matter formed by the mixture of cleaning liquid and dust will fall from the edge of the electrode sheet S on the vacuum suction plate 10 to the suction plate notch 12 during wiping, thereby preventing the foreign matter from accumulating on the vacuum suction plate 10 and causing secondary contamination to the electrode sheet S, and preventing the clogging of the suction hole 13 of the vacuum suction plate 10. The cleaning liquid may use a commonly used organic solvent, and as an example, an NMP solvent may be used.

[0042] In one embodiment, the laser cleaning area L is located at an edge Sa of the electrode sheet S, and the suction plate notch 12 is formed in an oblong shape extending along the edge Sa. Thus, the suction plate notch 12 is close to the laser cleaning area L as the wiping object, and foreign matter generated during wiping can fall into the suction plate notch 12 more easily.

[0043] In one embodiment, the slot width W2 of the suction plate slot 12 is 2 mm to 4 mm, and the distance between one edge Sa of the electrode sheet S and the long side of the suction plate slot 12 closest to the edge Sa, i.e., the slot-to-slot distance W1, is 2 mm to 4 mm. By setting the slot width W2 and the slot-to-slot distance W1 to an appropriate range, foreign matter generated during wiping can be easily dropped into the suction plate slot 12, thereby preventing foreign matter from accumulating on the vacuum suction plate 10.

[0044] In one embodiment, the slot width W2 is equal to the distance W1 between the slots, so that the operator can easily set it. For example, for application scenarios where the extrusion force between the wiping head and the vacuum suction plate is large, setting a larger slot width and correspondingly increasing the distance between the slots can prevent foreign objects from flying a long distance and crossing the suction plate slot; for application scenarios where the extrusion force between the wiping head and the vacuum suction plate is small, setting a smaller slot width and correspondingly reducing the distance between the slots can prevent foreign objects from failing to reach the suction plate slot and remaining on the vacuum suction plate 10.

[0045] In one embodiment, the diameter of the adsorption hole 13 of the vacuum suction plate 10 is 0.3 mm-0.7 mm.

[0046] By setting the aperture of the adsorption hole 13 to the appropriate range as described above, the electrode sheet can be adsorbed with an appropriate adsorption force. If the aperture of the adsorption hole 13 is too large, an adsorption hole mark may be left on the electrode sheet; if the aperture of the adsorption hole 13 is too small, insufficient negative pressure may cause adsorption weakness. In addition, the adsorption holes 13 are formed into multiple columns, and the adsorption holes 13 in each column are arranged at equal intervals. The cross-sectional shape of the adsorption hole 13 is not particularly limited, and can be formed into a circle, or other shapes such as a square.

[0047] Figure 3 3 is a top view showing the negative pressure chamber 20 in the wiping dust removal device 1 .

[0048] like Figure 3 As shown, a suction groove 23 is provided on one side of the negative pressure chamber 20 fixedly connected to the vacuum suction plate 10. The suction groove 23 is formed into a shape corresponding to the column of the suction holes 13, and each part is connected to each other to form a part of the negative pressure channel 60. The width of the suction groove 23 is greater than the aperture of the suction hole 13. By forming the suction groove 23 in this way, negative pressure can be efficiently introduced from the negative pressure channel 60 to the suction hole 13.

[0049] In addition, the negative pressure chamber 20 is formed with an adsorption port 26 connected to the adsorption groove 23 at one end surface, and the adsorption port 26 also constitutes a part of the negative pressure channel 60, and is connected to the vacuum source outside the negative pressure chamber via a pipeline. As needed, a vacuum filter can be provided between the adsorption port 26 and the external vacuum source. Due to the suction effect of the vacuum source, the negative pressure chamber 20 can introduce appropriate negative pressure into the adsorption hole 13.

[0050] In one embodiment, the negative pressure cavity 20 is further provided with a cavity notch 22 on one side fixedly connected to the vacuum suction plate 10 , and the cavity notch 22 overlaps with the suction plate notch 12 to form a part of the dust suction channel 50 of the negative pressure cavity 20 .

[0051] Through this structure, foreign matter that falls into the suction plate notch 12 can smoothly enter the cavity notch 22, so as to facilitate the subsequent discharge of the foreign matter.

[0052] In addition, the negative pressure cavity 20 is formed with a dust exhaust outlet 25 at the end surface close to the cavity notch 22 . The dust exhaust outlet 25 also constitutes a part of the dust suction channel 50 and is connected to the vacuum source outside the negative pressure cavity 20 via a pipeline.

[0053] Thus, foreign matter generated during wiping will fall from the edge of the electrode sheet S on the vacuum suction plate 10 to the suction plate notch 12, further enter the cavity notch 22 and be discharged to the outside of the negative pressure cavity 20 through the dust exhaust outlet 25. Due to the suction effect of the vacuum source, it is possible to reliably prevent foreign matter from accumulating on the vacuum suction plate 10 and causing secondary contamination to the electrode sheet S, and it is possible to prevent the clogging of the suction holes 13 of the vacuum suction plate 10 caused by the accumulation of foreign matter.

[0054] In order to further prevent secondary contamination of the electrode sheet, in one embodiment, the vacuum suction plate is formed of a non-metallic material with a Rockwell hardness HRC of 50-60. Thus, while ensuring strength, metal friction between the vacuum suction plate and the pressing plate pressing the electrode sheet can be avoided, thereby avoiding secondary contamination of the electrode sheet due to falling metal powder.

[0055] The above description shows preferred embodiments of the present disclosure, but the present disclosure is not limited to the above embodiments, and various changes can be implemented within the scope of the present disclosure. In particular, without departing from the spirit and teachings of the present disclosure, the features described in the various embodiments and / or technical solutions of the present disclosure can be combined and / or combined in various ways. All these combinations and / or combinations fall within the scope of the present disclosure.

[0056] Industrial Applicability

[0057] The wiping dust removal device disclosed in the present invention can prevent foreign matter from accumulating on the vacuum suction plate and causing secondary contamination to the electrode sheet, and can also prevent the adsorption holes of the vacuum suction plate from being blocked.

Claims

1. A wiping and dust removal device, which is used to wipe and remove dust from the laser cleaning area of ​​an electrode sheet after laser cleaning, characterized in that: have: A vacuum suction plate, comprising a first surface, a second surface, and suction holes penetrating the first surface and the second surface; and a negative pressure chamber, which is fixedly connected to the second surface of the vacuum suction plate and has a negative pressure channel connected to the suction hole, The vacuum suction plate has a suction plate notch, When wiping the laser cleaning area, the vacuum suction plate fixes the electrode sheet by sucking the electrode sheet through the suction hole, and the suction plate notch is close to the laser cleaning area and is not covered by the electrode sheet.

2. The wiping dust removal device according to claim 1, characterized in that: The laser cleaning area is located at one edge of the electrode sheet, and the suction plate notch is formed in an oblong shape extending along the one edge of the electrode sheet.

3. The wiping dust removal device according to claim 2, characterized in that: The width of the notch of the suction plate is 2mm-4mm. The distance between the one edge of the electrode sheet and the long side of the suction plate notch closest to the one edge, that is, the distance between the notches, is 2 mm to 4 mm.

4. The wiping dust removal device according to claim 3, characterized in that: The slot width is equal to the distance between the slot pieces.

5. The wiping dust removal device according to claim 1, characterized in that: The adsorption holes have a pore diameter of 0.3 mm to 0.7 mm.

6. The wiping dust removal device according to claim 5, characterized in that: The adsorption holes are formed into a plurality of rows, and the adsorption holes in each row are arranged at equal intervals. The negative pressure chamber is fixedly connected to one side of the vacuum suction plate and is provided with an adsorption groove, the adsorption groove is formed into a shape corresponding to the column of the adsorption holes, and the various parts are connected to each other to form a part of the negative pressure channel, and the width of the adsorption groove is greater than the aperture of the adsorption hole.

7. The wiping dust removal device according to claim 6, characterized in that: The negative pressure cavity is formed with an adsorption port communicated with the adsorption groove on one end surface. The adsorption port also constitutes a part of the negative pressure channel and is connected to a vacuum source outside the negative pressure cavity via a pipeline.

8. The wiping dust removal device according to claim 1, characterized in that: The negative pressure cavity is also provided with a cavity notch on one side fixedly connected to the vacuum suction plate. The cavity notch overlaps with the suction plate notch to form a part of the dust suction channel of the negative pressure cavity.

9. The wiping dust removal device according to claim 8, characterized in that: The negative pressure cavity is formed with a dust exhaust outlet at the end surface close to the cavity notch, and the dust exhaust outlet also constitutes a part of the dust suction channel and is connected to the vacuum source outside the negative pressure cavity via a pipeline.

10. The wiping dust removal device according to any one of claims 1 to 9, characterized in that: The vacuum suction plate is formed of a non-metal material with a Rockwell hardness HRC of 50-60.

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