Laser drilling module

Abstract

The utility model provides a kind of laser drilling module, including including galvanometer head, dust hood, tension roller group and dust suction assembly, the dust hood is close to the side wall of galvanometer head is provided with light transmission hole, the galvanometer head is connected between dust hood by organ case, the light transmission hole is in the organ case, the laser beam that the galvanometer head shoots enters the dust hood by the light transmission hole, the pole piece material belt passes through the dust hood, and is tensioned by tension roller group, the dust suction assembly is equipped with first dust suction port, the pole piece material belt is between the light transmission hole and the first dust suction port. The utility model can efficiently punch the pole piece material belt, can effectively inhibit and remove dust impurity generated in the process of punching simultaneously, is favorable for guaranteeing the quality of pole piece material belt.

Description

Technical Field

[0001] This utility model relates to the field of electrode drilling technology, and in particular to a laser drilling module. Background Technology

[0002] To increase the contact area between the electrolyte and the coating on the electrode, thereby improving battery performance, a common method is to drill holes in the electrode to create micropores in the coating, allowing the electrolyte to enter. To improve drilling efficiency and quality, laser drilling has been developed. However, laser drilling can generate dust, which can spread and contaminate the electrode, thus affecting its performance. Utility Model Content

[0003] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a laser drilling module that can effectively prevent dust diffusion during the laser drilling process on the electrode sheet.

[0004] The embodiments of this utility model are achieved through the following technical solutions: A laser drilling module for drilling electrode strips includes a scanning head, a dust hood, a tensioning roller assembly, and a dust collection component. The dust hood has a light-transmitting hole on one side wall near the scanning head. The scanning head and the dust hood are connected by a bellows cover, with the light-transmitting hole located inside the bellows cover. A laser beam emitted from the scanning head enters the dust hood through the light-transmitting hole. The electrode strip passes through the dust hood and is tensioned by the tensioning roller assembly. The dust collection component has a first dust suction port, with the electrode strip positioned between the light-transmitting hole and the first dust suction port. This laser drilling module can efficiently drill electrode strips while effectively suppressing and removing dust and impurities generated during the drilling process, thus ensuring the quality of the electrode strips.

[0005] According to a preferred embodiment, the dust collection assembly includes a first dust collection pipe and a first dust collection head. The first dust collection pipe penetrates the side wall of the dust collection hood, and the first dust collection head is located in the inner cavity of the dust collection hood and communicates with the first dust collection pipe. The outlet end of the first dust collection pipe is connected to a negative pressure source to generate negative pressure at the first dust collection head. The area of ​​the electrode strip processed by the laser beam is located between the light-transmitting hole and the first dust collection head. The first dust collection port is located on the first dust collection head and is oriented towards the electrode strip.

[0006] According to a preferred embodiment, the dust collector hood is provided with an inlet and an outlet, the electrode strip enters the inner cavity of the dust collector hood from the inlet and exits the inner cavity of the dust collector hood from the outlet.

[0007] According to a preferred embodiment, the tensioning roller assembly includes two first passing rollers disposed near the feed inlet and two second passing rollers disposed near the discharge outlet. The two first passing rollers are arranged in parallel, and the two second passing rollers are arranged in parallel. The electrode strip passes through the gap between the two first passing rollers and the gap between the two second passing rollers in sequence. The portion of the electrode strip located between the second passing roller closest to the feed inlet and the first passing roller closest to the discharge outlet constitutes a processing zone. The processing zone is located between the light-transmitting hole and the first dust-collecting port.

[0008] According to a preferred embodiment, a dust removal air knife is provided inside the dust removal hood, and the air outlet of the dust removal air knife faces the area between the processing area and the light-transmitting hole; a second dust suction port is provided on the side wall of the dust removal hood located downwind of the dust removal air knife.

[0009] According to a preferred embodiment, a first filter screen is provided at both the first dust suction port and the second dust suction port.

[0010] According to a preferred embodiment, a first dust suction hood is provided on the outer wall of the dust removal hood. The first dust suction hood is in the shape of an inverted cone and is assembled on the outside of the second dust suction port.

[0011] According to a preferred embodiment, an annular air knife is provided at the light-transmitting hole, and the annular air knife is coaxial with the light-transmitting hole.

[0012] According to a preferred embodiment, the laser drilling module further includes a first mounting base, on which a first adjusting plate is adjustablely disposed along the width direction of the electrode strip, and a second adjusting plate is adjustablely disposed on the first adjusting plate. The second adjusting plate can move relative to the first adjusting plate to move closer to or further away from the dust removal hood, and the diaphragm head is mounted on the second adjusting plate. Attached Figure Description

[0013] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 A three-dimensional structural diagram of the laser drilling module provided in an embodiment of this utility model; Figure 2 This is a schematic diagram of the structure of the laser drilling module provided in this embodiment of the present invention after one side wall of the dust cover has been removed.

[0015] Icons: 11. Vibrating head; 12. Dust hood; 121. Light-transmitting hole; 122. Discharge port; 123. Feed port; 124. Second dust suction port; 125. First dust suction hood; 1251. Second dust suction pipe; 126. Annular air knife; 13. Bellows cover; 14. Dust suction assembly; 141. First dust suction pipe; 142. First dust suction head; 15. Tensioning roller group; 151. First guide roller; 152. Second guide roller; 16. Dust removal air knife; 17. First filter screen; 18. First mounting base; 181. First adjusting plate; 182. Second adjusting plate; 183. First lead screw; 184. Second lead screw; 2. Electrode strip; 21. Processing area. Detailed Implementation

[0016] To better understand and implement this invention, the technical solutions in the embodiments of this invention will be clearly and completely described below with reference to the accompanying drawings.

[0017] In the description of this utility model, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0018] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

[0019] Please refer to Figures 1 to 2A laser drilling module for drilling electrode strip 2 includes a vibrating head 11, a dust removal hood 12, a tensioning roller group 15, and a dust collection assembly 14. The dust removal hood 12 has a light-transmitting hole 121 on one side wall near the vibrating head 11. The vibrating head 11 and the dust removal hood 12 are connected by a bellows cover 13. The light-transmitting hole 121 is located inside the bellows cover 13. The laser beam emitted by the vibrating head 11 enters the dust removal hood 12 through the light-transmitting hole 121. The electrode strip 2 passes through the dust removal hood 12 and is tensioned by the tensioning roller group 15. The dust collection assembly 14 is equipped with a first dust suction port, and the electrode strip 2 is located between the light-transmitting hole 121 and the first dust suction port. Specifically, the tensioning roller assembly 15 tensions the electrode strip 2 to create conditions for laser processing. It should be noted that the tensioning roller assembly 15 is located inside the dust collection hood 12, and correspondingly, the area of ​​the electrode strip 2 processed by the laser beam is also located within the dust collection hood 12. Dust and impurities generated during the laser drilling process are confined within the inner cavity of the dust collection hood 12, and are removed by the dust extraction assembly 14, thus avoiding the risk of dust spreading and contaminating the electrode strip 2.

[0020] In this embodiment, the dust collection assembly 14 includes a first dust collection pipe 141 and a first dust collection head 142. The first dust collection pipe 141 penetrates the side wall of the dust collection hood 12, and the first dust collection head 142 is located in the inner cavity of the dust collection hood 12 and communicates with the first dust collection pipe 141. The outlet end of the first dust collection pipe 141 is connected to a negative pressure source (not shown in the figure) to generate negative pressure at the first dust collection head 142. In this embodiment, the area of ​​the electrode strip 2 processed by the laser beam is located between the light-transmitting hole 121 and the first dust collection head 142. The first dust collection port is located on the first dust collection head 142 and is positioned facing the electrode strip 2.

[0021] Furthermore, such as Figure 1 and Figure 2 As shown, the dust collector 12 is provided with a feed inlet 123 and a discharge outlet 122. The electrode material strip 2 enters the inner cavity of the dust collector 12 through the feed inlet 123 and exits the inner cavity of the dust collector 12 through the discharge outlet 122.

[0022] like Figure 2As shown, the tensioning roller group 15 includes two first passing rollers 151 arranged near the feed inlet 123 and two second passing rollers 152 arranged near the discharge outlet 122. The two first passing rollers 151 are arranged in parallel, and the two second passing rollers 152 are arranged in parallel. The electrode strip 2 passes through the gap between the two first passing rollers 151 and the gap between the two second passing rollers 152 in sequence. The portion of the electrode strip 2 located between the second passing roller 152 closest to the feed inlet 123 and the first passing roller 151 closest to the discharge outlet 122 constitutes the processing area 21. The processing area 21 is located between the light-transmitting hole 121 and the first dust suction port.

[0023] like Figure 2 As shown, a dust removal air knife 16 is provided inside the dust removal hood 12, with the air outlet of the dust removal air knife 16 facing the area between the processing area 21 and the light-transmitting hole 121. A second dust suction port 124 is provided on the side wall of the dust removal hood 12 located downwind of the dust removal air knife 16. Preferably, the dust removal air knife 16 is positioned near the upper part of the dust removal hood 12, and the second dust suction port 124 is positioned near the lower part of the dust removal hood 12. Therefore, impurities in the area between the processing area 21 and the light-transmitting hole 121 can move towards the second dust suction port 124 under the action of gravity, and can also move further towards the second dust suction port 124 under the action of the dust removal air knife 16, which is beneficial for further removal of impurities in the dust removal chamber. It should be noted that the second dust suction port 124, like the first dust suction port, is externally connected to a negative pressure source.

[0024] Preferably, a first filter screen 17 is provided at both the first dust suction port and the second dust suction port 124 to prevent large parts from entering the dust suction port and causing blockage.

[0025] A first dust suction hood 125 is provided on the outer wall of the dust removal hood 12. The first dust suction hood 125 is inverted conical in shape and is fitted to the outside of the second dust suction port 124. Specifically, as shown... Figure 1 and Figure 2 As shown, the area of ​​the second suction port 124 is slightly smaller than the bottom surface area of ​​the dust hood 12. In this embodiment, the small end of the first dust hood 125 is equipped with a second suction pipe 1251, which is connected to a negative pressure source. During use, the airflow flows from the large end to the small end of the first dust hood 125. During this process, the flow channel area gradually decreases, the airflow velocity gradually increases, and the negative pressure atmosphere gradually strengthens, which is more conducive to removing impurities from the dust hood 12.

[0026] like Figure 1 and Figure 2As shown, an annular air knife 126 is provided at the light-transmitting hole 121, and the annular air knife 126 is coaxial with the light-transmitting hole 121. The annular air knife 126 here can prevent impurities from entering the bellows cover 13 through the light-transmitting hole 121, so as to avoid interfering with the operation of the laser beam on the electrode strip 2.

[0027] like Figure 1 As shown, the laser drilling module further includes a first mounting base 18. A first adjusting plate 181 is adjustablely disposed on the first mounting base 18 along the width direction of the electrode strip 2. A second adjusting plate 182 is adjustablely disposed on the first adjusting plate 181. The second adjusting plate 182 can move relative to the first adjusting plate 181 to approach or move away from the dust cover 12. The scanning head 11 is mounted on the second adjusting plate 182. Preferably, the first adjusting plate 181 is slidably mounted on the first mounting base 18 via a slide rail slider assembly, and the second adjusting plate 182 is slidably mounted on the first mounting base 18 via the slide rail slider assembly. The first adjusting plate 181 is adjusted by rotating a first lead screw 183 mounted on the first mounting base 18; specifically, the first adjusting plate 181 is threadedly connected to the first lead screw. Correspondingly, the second adjusting plate 182 is adjusted by rotating a second lead screw 184 mounted on the first adjusting plate 181; specifically, the second adjusting plate 182 is threadedly connected to the second lead screw 184. In this embodiment, the first adjustment plate 181 moves along the width of the electrode strip 2 to adjust the laser beam projection area in the width direction of the electrode strip 2; the second adjustment plate 182 can move closer to or further away from the dust cover 12, that is, the scanning lens 11 can move closer to or further away from the processing area 21 of the electrode strip 2 under the action of the second adjustment plate 182, thereby realizing the focusing of the laser beam.

[0028] In summary, the laser drilling module provided in this embodiment can efficiently drill holes in the electrode strip 2, while effectively suppressing and removing dust and impurities generated during the drilling process, which helps to ensure the quality of the electrode strip 2.

[0029] The technical means disclosed in this utility model are not limited to those disclosed in the above embodiments, but also include technical solutions composed of any combination of the above technical features. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications are also considered within the scope of protection of this utility model.

Claims

1. A laser drilling module for drilling holes in electrode strips, characterized in that, The device includes a scanning head, a dust hood, a tensioning roller assembly, and a dust collection assembly. The dust hood has a light-transmitting hole on one side wall near the scanning head. The scanning head and the dust hood are connected by a bellows cover. The light-transmitting hole is located inside the bellows cover. The laser beam emitted by the scanning head enters the dust hood through the light-transmitting hole. The electrode strip passes through the dust hood and is tensioned by the tensioning roller assembly. The dust collection assembly is equipped with a first dust suction port, and the electrode strip is located between the light-transmitting hole and the first dust suction port.

2. The laser drilling module according to claim 1, characterized in that, The dust collection assembly includes a first dust collection tube and a first dust collection head. The first dust collection tube penetrates the side wall of the dust collection hood, and the first dust collection head is located in the inner cavity of the dust collection hood and communicates with the first dust collection tube. The outlet end of the first dust collection tube is connected to a negative pressure source so as to generate negative pressure at the first dust collection head. The area of ​​the electrode strip processed by the laser beam is located between the light-transmitting hole and the first dust-collecting head; The first suction port is located on the first suction head and is positioned facing the electrode strip.

3. The laser drilling module according to claim 1, characterized in that, The dust collector hood is provided with a feed inlet and a discharge outlet. The electrode strip enters the inner cavity of the dust collector hood through the feed inlet and exits the inner cavity of the dust collector hood through the discharge outlet.

4. The laser drilling module according to claim 3, characterized in that, The tensioning roller assembly includes two first passing rollers positioned near the feed inlet and two second passing rollers positioned near the discharge outlet. The two first passing rollers and the two second passing rollers are arranged in parallel. The electrode strip passes through the gap between the two first passing rollers and the gap between the two second passing rollers in sequence. The portion of the electrode strip located between the second passing roller closest to the feed inlet and the first passing roller closest to the discharge outlet constitutes a processing zone. The processing zone is located between the light-transmitting hole and the first dust-collecting port.

5. The laser drilling module according to claim 4, characterized in that, The dust removal hood is equipped with a dust removal air knife, and the air outlet of the dust removal air knife faces the area between the processing area and the light-transmitting hole; The dust removal hood has a second dust suction port on its side wall facing downwind of the dust removal air knife.

6. The laser drilling module according to claim 5, characterized in that, Both the first and second suction ports are equipped with a first filter screen.

7. The laser drilling module according to claim 5, characterized in that, A first dust suction hood is provided on the outer wall of the dust removal hood. The first dust suction hood is in the shape of an inverted cone and is assembled on the outside of the second dust suction port.

8. The laser drilling module according to claim 1, characterized in that, An annular air knife is provided at the light-transmitting hole, and the annular air knife is coaxial with the light-transmitting hole.

9. The laser drilling module according to claim 1, characterized in that, The laser drilling module further includes a first mounting base, on which a first adjusting plate is adjustablely disposed along the width direction of the electrode strip, and a second adjusting plate is adjustablely disposed on the first adjusting plate. The second adjusting plate can move relative to the first adjusting plate to move closer to or further away from the dust removal hood, and the scanning head is mounted on the second adjusting plate.

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