Laser cleaning device
The laser cleaning device emits laser light on the surface of the rolling roller, which solves the problem that traditional rolling roller cleaning requires manual wiping, and achieves efficient cleaning without shutdown, reduces labor costs and improves the quality and consistency of battery cell products.
Patent Information
- Application Number
- CN202421987768.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-15
- Publication Date
- 2025-08-12
- Estimated Expiration
- 2034-08-15
AI Technical Summary
The cleaning of traditional rolling rollers requires shutdown and manual wiping, which leads to high labor costs and is prone to damage the product and affects the quality of the battery cell.
A laser cleaning device is designed, including a frame, a slide rail, a bracket, a laser emitting mechanism and a driving member. The laser emitting mechanism emits laser light on the surface of the rolling roller through the laser emitting mechanism, and the driving member drives the bracket to slide to achieve cleaning without shutdown.
It realizes cleaning of rolling rollers without shutdown, reduces labor costs, avoids product damage, and ensures battery cell quality and consistency.
Smart Images
Figure CN223210104U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the field of pole piece production technology, and in particular to a laser cleaning device. Background Art
[0002] During the battery cell manufacturing process, rolling rollers are required to press the electrodes tightly to ensure cell quality. However, during the long production process, electrode material easily adheres to the roller surface, resulting in reduced product quality.
[0003] During the battery cell manufacturing process, traditional stacking machines need to be shut down after working for a period of time to use dust-free cloths and alcohol to wipe the rolling rollers for cleaning purposes. However, the stacking machine requires manual participation during the shutdown cleaning process, which has high labor costs. In addition, the manual wiping effect is generally poor and can easily cause product damage. In some cases, this damage may cause battery performance to deteriorate or even lead to direct scrapping. Utility Model Content
[0004] The purpose of this application includes, for example, providing a laser cleaning device that can clean the rolling roller without stopping the machine, reducing labor costs and ensuring the quality of battery products.
[0005] The embodiments of the present application can be implemented as follows:
[0006] An embodiment of the present application provides a laser cleaning device, which is used to clean a rolling roller. The laser cleaning device includes a frame, a slide rail, a bracket, a laser emitting mechanism and a driving member. The slide rail is arranged on the frame, and the length direction of the slide rail is consistent with the axial direction of the rolling roller; the bracket slides with the slide rail, the laser emitting mechanism is partially arranged on the bracket, and the laser emitting mechanism is used to emit a laser to the surface of the rolling roller; the driving member is arranged on the frame, and the driving member is connected to the bracket to drive the bracket to slide on the slide rail.
[0007] Optionally, the laser emitting mechanism includes a laser generator, a laser head and a lens assembly, the laser generator and the lens assembly are both arranged on the frame, the laser head is arranged on the bracket, the laser generator is used to emit laser, the lens assembly is used to project the laser emitted by the laser generator to the laser head, and the laser head is used to emit laser toward the surface of the rolling roller.
[0008] Optionally, the lens assembly includes a galvanometer and a field lens, and the galvanometer and the field lens are both arranged on the frame, and the laser generator, the galvanometer, the field lens and the laser head are arranged in sequence.
[0009] Optionally, the distance between the laser head and the rolling roller is 255-275 mm.
[0010] Optionally, the laser cleaning device further includes a laser absorption box, which is arranged on the frame and is used to absorb the laser reflected from the surface of the rolling roller.
[0011] Optionally, the laser absorption box is provided with an opening on a side facing the laminating roller, and the inner wall of the laser absorption box is provided with a laser absorption coating, and the laser absorption coating is used to absorb the laser reflected by the surface of the laminating roller.
[0012] Optionally, the laser absorbing coating is a silicon dioxide coating.
[0013] Optionally, the angle between the laser emission direction of the laser emitting mechanism and the tangent direction of the surface of the rolling roller at the projection point of the laser is 30°-75°.
[0014] Optionally, the laser cleaning device further includes a dust collection box, which is disposed on the frame and located on one side of the rolling roller, and is used to absorb dust on the surface of the rolling roller.
[0015] Optionally, an opening is provided on a side of the dust collection box facing the rolling roller, and the dust collection box is connected to an external negative pressure pipe.
[0016] The beneficial effects of the laser cleaning device provided by the embodiment of the present application include, for example: in order to reduce labor costs when cleaning the rolling roller and ensure the quality of the battery cell products, a laser cleaning device is designed, which includes a frame, a slide rail, a bracket, a laser emitting mechanism and a driving member. The slide rail is arranged on the frame, and the length direction of the slide rail is consistent with the axial direction of the rolling roller; the bracket slides with the slide rail, the laser emitting mechanism is partially arranged on the bracket, and the laser emitting mechanism is used to emit laser light to the surface of the rolling roller; the driving member is arranged on the frame, and the driving member is connected to the bracket to drive the bracket to slide on the slide rail. During the cleaning process of the rolling roller, the driving member and the laser emitting mechanism are started, and the driving member drives the bracket to slide on the slide rail. During this process, the laser emitting mechanism on the bracket continuously emits laser light to the surface of the rolling roller. The surface of the rolling roller can be cleaned during its rotation without manual wiping, thereby reducing labor costs and ensuring the quality of the battery cell products. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without creative work.
[0018] Figure 1 This is a schematic diagram for illustrating the positional relationship between the laser cleaning device and the rolling roller in the embodiment of the present application;
[0019] Figure 2 This is a schematic diagram used to demonstrate the positional relationship between the two laser cleaning devices, the upper rolling roller, and the lower rolling roller in the embodiment of the present application.
[0020] Icons: 100-laser cleaning device; 110-slide rail; 120-bracket; 130-laser emitting mechanism; 131-laser generator; 132-laser head; 140-laser absorption box; 150-dust collection box; 200-rolling roller; 210-upper rolling roller; 220-lower rolling roller; 300-pole piece. DETAILED DESCRIPTION
[0021] To make the objectives, technical solutions, and advantages of the embodiments of the present application more clear, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Generally, the components of the embodiments of the present application described and shown in the drawings herein can be arranged and designed in various different configurations.
[0022] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application for protection, but merely represents selected embodiments of the present application. All other embodiments obtained by persons of ordinary skill in the art based on the embodiments in the present application without creative work are within the scope of protection of the present application.
[0023] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.
[0024] In the description of this application, it should be noted that if the terms "upper", "lower", "inside", "outside", etc. appear, the orientation or position relationship indicated is based on the orientation or position relationship shown in the accompanying drawings, or is the orientation or position relationship in which the utility model product is usually placed when in use. It is only for the convenience of describing this application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on this application.
[0025] In addition, the terms "first", "second", etc., if used, are merely used to distinguish and describe, and should not be understood as indicating or implying relative importance.
[0026] It should be noted that, in the absence of conflict, the features in the embodiments of this application can be combined with each other.
[0027] The inventors of this application discovered that traditional laminating machines need to be shut down after a period of operation to clean the laminating rollers with a dust-free cloth or alcohol. However, this cleaning process requires manual intervention, which is labor-intensive and ineffective. Furthermore, manual wiping can easily damage the product, which in some cases can lead to degradation of battery performance or even outright scrapping. The embodiments of this application provide a laser cleaning device that can clean the laminating rollers without shutting down the machine, reducing labor costs and ensuring product quality.
[0028] Please refer to Figure 1 、 Figure 2 , an embodiment of the present application provides a laser cleaning device 100, which is used to clean the rolling roller 200. The laser cleaning device 100 includes a frame (not shown), a slide rail 110, a bracket 120, a laser emitting mechanism 130 and a driving member (not shown). The slide rail 110 is arranged on the frame, and the length direction of the slide rail 110 is consistent with the axial direction of the rolling roller 200; the bracket 120 slides with the slide rail 110, the laser emitting mechanism 130 is partially arranged on the bracket 120, and the laser emitting mechanism 130 is used to emit a laser to the surface of the rolling roller 200; the driving member is arranged on the frame, and the driving member is connected to the bracket 120 to drive the bracket 120 to slide on the slide rail 110.
[0029] The bracket 120 can slide along the length direction of the slide rail 110 , and the driving member can be a screw module or a cylinder, as long as it can drive the bracket 120 to slide on the slide rail 110 .
[0030] During the cleaning process of the rolling roller 200, the driving part and the laser emitting mechanism 130 are started, and the driving part drives the bracket 120 to slide on the slide rail 110. During this process, the laser emitting mechanism 130 on the bracket 120 continuously emits laser to the surface of the rolling roller 200. The surface of the rolling roller 200 can be cleaned during the rotation of the rolling roller 200 without manual wiping, which reduces labor costs, alleviates product damage, and ensures the quality and consistency of the battery cell products.
[0031] It should be noted that when the number of rolling rollers 200 is two, that is, when there are both an upper rolling roller 210 and a lower rolling roller 220, the number of laser cleaning devices 100 is also two. The two laser cleaning devices 100 are matched with the upper rolling roller 210 and the lower rolling roller 220 respectively, and the pole piece 300 passes between the upper rolling roller 210 and the lower rolling roller 220. The following is an explanation of the case where a single laser cleaning device 100 matches a corresponding single rolling roller 200.
[0032] In this embodiment, the laser emitting mechanism 130 includes a laser generator 131, a laser head 132 and a lens assembly (not shown). The laser generator 131 and the lens assembly are both arranged on the frame, and the laser head 132 is arranged on the bracket 120. The laser generator 131 is an infrared laser. The laser generator 131 is used to emit laser. The lens assembly is used to project the laser emitted by the laser generator 131 to the laser head 132. The laser head 132 is used to emit laser toward the surface of the rolling roller 200.
[0033] When it is necessary to emit laser to the surface of the rolling roller 200, the laser generator 131 is started, and the laser generator 131 emits laser toward the lens assembly. The lens assembly projects the laser emitted by the laser generator 131 to the laser head 132, and the laser head 132 then emits laser toward the surface of the rolling roller 200. The surface of the rolling roller 200 can be cleaned during the rotation of the rolling roller 200.
[0034] When using the laser generator 131, the electrode material adhering to the surface of the laminating roller 200 can be removed by precisely controlling the laser parameters while avoiding damage to the laminating roller 200 itself. At low laser throughput, the electrode material on the surface of the laminating roller 200 is heated by the absorbed laser energy and evaporates or sublimates. At high laser throughput, the electrode material on the surface of the laminating roller 200 is generally converted into plasma.
[0035] When setting laser parameters, adjust the laser generator 131 parameters, such as laser power, scanning speed, and scanning interval, based on the material and surface condition of the laminating roller 200 to ensure optimal cleaning results. Once activated, the laser sweeps across the surface of the laminating roller 200, using thermal energy to dislodge or evaporate adhered material, thereby achieving the cleaning effect. Furthermore, the laser generator 131 can be operated in either pulsed or continuous mode as needed to enhance cleaning efficiency and effectiveness. Pulsed mode is suitable for handling heavy surface adhesion, while continuous mode is ideal for light contamination or ongoing cleaning maintenance.
[0036] For example, the pulse width of the laser generator 131 is set to 30 ns or 60 ns, the power is set to 50 W or 45 kW, and the frequency is set to 4000 Khz or 2000 Khz.
[0037] In this embodiment, the lens assembly includes a galvanometer and a field lens, both of which are arranged on a frame, and the laser generator 131, the galvanometer, the field lens and the laser head 132 are arranged in sequence.
[0038] When the laser generator 131 emits laser light toward the lens assembly, the laser light emitted by the laser generator 131 is sequentially projected to the laser head 132 through the galvanometer mirror and the field lens, and the laser head 132 then emits laser light toward the surface of the rolling roller 200 .
[0039] In other embodiments, the arrangement order of the galvanometer and the field mirror can be adjusted according to actual working conditions. For example, the laser generator 131, the field mirror, the galvanometer and the laser head 132 are arranged in sequence. In the process of the laser generator 131 emitting laser toward the lens assembly, the laser emitted by the laser generator 131 is projected to the laser head 132 through the field mirror and the galvanometer in sequence, and the laser head 132 then emits laser toward the surface of the rolling roller 200.
[0040] In this embodiment, the distance D between the laser head 132 and the laminating roller 200 is 255-275 mm.
[0041] It should be noted that the distance D between the laser head 132 and the rolling roller 200 refers to the distance between the emitting end of the laser head 132 and the projection point of the laser on the surface of the rolling roller 200. According to the focal length of the laser emitting mechanism 130, the distance D between the laser head 132 and the rolling roller 200 is limited to the above range, which can effectively clean the surface of the rolling roller 200.
[0042] Exemplarily, the distance D between the laser head 132 and the laminating roller 200 is 255 mm, 265 mm, or 275 mm. It is understandable that the distance D between the laser head 132 and the laminating roller 200 can be selected within the above range according to actual working conditions.
[0043] In this embodiment, the laser cleaning device 100 further includes a laser absorption box 140 . The laser absorption box 140 is disposed on the frame and is used to absorb the laser reflected from the surface of the rolling roller 200 .
[0044] In the figure, the direction in which the laminating roller 200 reflects the laser is A, and the rotation direction of the laminating roller 200 is B.
[0045] In order to reduce the impact of laser on other equipment or personnel, a laser absorption box 140 is set on the frame. The laser is projected onto the surface of the rolling roller 200 and reflected. The reflected laser can be absorbed by the laser absorption box 140, thereby reducing the impact of the laser on other equipment or personnel.
[0046] In this embodiment, an opening is provided on the side of the laser absorption box 140 facing the laminating roller 200 , and a laser absorption coating is provided on the inner wall of the laser absorption box 140 . The laser absorption coating is used to absorb the laser reflected from the surface of the laminating roller 200 .
[0047] The laser is projected onto the surface of the laminating roller 200 and is reflected. The reflected laser can enter the laser absorption box 140 through the opening on the side of the laser absorption box 140 facing the laminating roller 200 , and is thereby absorbed by the laser absorption coating provided on the inner wall of the laser absorption box 140 .
[0048] Optionally, the laser absorbing coating is a silicon dioxide coating.
[0049] It should be noted that when the laser is irradiated onto the surface of the silica coating, the high energy density of the laser can excite the molecules or atoms on the surface of the silica, thereby causing electron transitions and then absorbing the energy of the laser.
[0050] It is understandable that the laser absorbing coating may also be made of other materials that can absorb laser energy, and this is not limited to this.
[0051] In this embodiment, the angle a between the laser emitting direction of the laser emitting mechanism 130 and the tangent direction of the surface of the rolling roller 200 at the projection point of the laser is 30°-75°.
[0052] It should be pointed out that the laser emission direction of the laser emitting mechanism 130 is the laser emission direction of the laser head 132. The laser emission direction of the laser head 132 is inclined relative to the vertical direction. The angle a between the laser emission direction of the laser emitting mechanism 130 and the tangent direction of the surface of the rolling roller 200 at the projection point of the laser is limited to between 30° and 75°, which is more conducive to cleaning the surface of the rolling roller 200.
[0053] Exemplarily, the angle a between the laser emission direction of the laser emitting mechanism 130 and the tangent direction of the surface of the rolling roller 200 at the projection point of the laser is 30°, 45°, 60° or 75°. It can be understood that the angle a between the laser emission direction of the laser emitting mechanism 130 and the tangent direction of the surface of the rolling roller 200 at the projection point of the laser can be selected within the above range according to the actual working conditions.
[0054] In this embodiment, the laser cleaning device 100 further includes a dust collection box 150 . The dust collection box 150 is disposed on the frame and is located on one side of the rolling roller 200 . The dust collection box 150 is used to absorb dust on the surface of the rolling roller 200 .
[0055] When the surface of the rolling roller 200 is cleaned using the laser emitted by the laser head 132, dust particles may be generated on the surface of the rolling roller 200. At this time, the dust collection box 150 located on one side of the rolling roller 200 can absorb the dust on the surface of the rolling roller 200 to avoid dust pollution.
[0056] Furthermore, an opening is provided on the side of the dust collection box 150 facing the laminating roller 200 , and the dust collection box 150 is connected to an external negative pressure pipe.
[0057] When the laser emitted by the laser head 132 is used to clean the surface of the rolling roller 200, so that dust particles are generated on the surface of the rolling roller 200, since the dust collection box 150 is connected to the external negative pressure pipe, the dust generated on the surface of the rolling roller 220 under the action of the negative pressure of the dust collection box 150 can be sucked into the interior of the dust collection box 150 through the opening on the side of the dust collection box 150 toward the rolling roller 200, and then discharged through the negative pressure pipe.
[0058] The technical effects of the laser cleaning device 100 provided in the embodiment of the present application include at least: the laser cleaning device 100 can achieve non-contact cleaning, avoiding the physical damage or corrosion that may be caused to the rolling roller 200 by traditional mechanical or chemical cleaning; by quickly and effectively removing adhesions, it can reduce equipment downtime and improve overall production efficiency; by ensuring the cleanliness of the rolling roller 200, it helps to improve the quality and consistency of battery cell products and reduce the scrap rate caused by quality problems; and it reduces the maintenance costs caused by traditional cleaning methods, including the consumption of cleaning agents and labor costs.
[0059] To sum up, the embodiment of the present application provides a laser cleaning device 100. During the cleaning of the rolling roller 200, the driving member and the laser generator 131 are started, and the driving member drives the bracket 120 to slide on the slide rail 110. During this process, the laser generator 131 on the bracket 120 emits a laser toward the lens assembly, and the lens assembly projects the laser emitted by the laser generator 131 to the laser head 132. The laser head 132 then emits laser toward the surface of the rolling roller 200. The surface of the rolling roller 200 can be cleaned during the rotation process without manual wiping, which reduces labor costs, alleviates product damage, and ensures the quality and consistency of the battery cell products.
[0060] The above description is merely a specific embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in this application should be included in the scope of protection of the present application. Therefore, the scope of protection of the present application should be based on the scope of protection of the claims.
Claims
1. A laser cleaning device, characterized in that: The laser cleaning device is used to clean the rolling roller. The laser cleaning device includes a frame, a slide rail, a bracket, a laser emitting mechanism and a driving component. The slide rail is arranged on the frame, and the length direction of the slide rail is consistent with the axial direction of the rolling roller; the bracket slides with the slide rail, the laser emitting mechanism is partially arranged on the bracket, and the laser emitting mechanism is used to emit laser to the surface of the rolling roller; the driving component is arranged on the frame, and the driving component is connected to the bracket to drive the bracket to slide on the slide rail.
2. The laser cleaning device according to claim 1, characterized in that: The laser emitting mechanism includes a laser generator, a laser head and a lens assembly. The laser generator and the lens assembly are both arranged on the frame. The laser head is arranged on the bracket. The laser generator is used to emit laser. The lens assembly is used to project the laser emitted by the laser generator to the laser head. The laser head is used to emit laser toward the surface of the rolling roller.
3. The laser cleaning device according to claim 2, characterized in that: The lens assembly includes a galvanometer and a field lens, and both the galvanometer and the field lens are arranged on the frame. The laser generator, the galvanometer, the field lens and the laser head are arranged in sequence.
4. The laser cleaning device according to claim 2, characterized in that: The distance between the laser head and the rolling roller is 255-275 mm.
5. The laser cleaning device according to claim 1, characterized in that: The laser cleaning device further comprises a laser absorption box, which is arranged on the frame and is used for absorbing the laser reflected from the surface of the rolling roller.
6. The laser cleaning device according to claim 5, characterized in that: The laser absorption box is provided with an opening on a side facing the laminating roller, and the inner wall of the laser absorption box is provided with a laser absorption coating, which is used to absorb the laser reflected by the surface of the laminating roller.
7. The laser cleaning device according to claim 6, characterized in that: The laser absorbing coating is a silicon dioxide coating.
8. The laser cleaning device according to claim 1, characterized in that: The angle between the laser emitting direction of the laser emitting mechanism and the tangent direction of the surface of the rolling roller at the projection point of the laser is 30°-75°.
9. The laser cleaning device according to claim 1, characterized in that: The laser cleaning device further comprises a dust collection box, which is arranged on the frame and located on one side of the rolling roller. The dust collection box is used to absorb dust on the surface of the rolling roller.
10. The laser cleaning device according to claim 9, characterized in that: The dust collection box is provided with an opening on one side facing the rolling roller, and the dust collection box is connected to an external negative pressure pipe.