Laser cutting dust removal device for separator film and laser cutting machine

Abstract

The utility model belongs to battery processing technical field discloses a kind of laser cutting membrane dust removal device and laser cutting machine. The laser cutting membrane dust removal device includes several groups of dust removal components arranged at intervals, and each group of dust removal components includes two dust removal mechanisms arranged oppositely with respect to laser cutting area, and the dust removal mechanism includes dust removal pipeline and dust removal block, and the dust removal block is hollow inside and connected to the dust removal pipeline, and the bottom of the dust removal block includes a dust removal part arranged at a preset angle. The two dust removal parts of each dust removal component form a negative pressure area arranged opposite to the laser cutting area. The laser cutting membrane dust removal device can effectively capture the dust generated during the laser cutting process, improve the processing quality of the cut membrane, and protect the working environment and the health of the operator.

Description

Technical Field

[0001] This utility model relates to the field of battery processing technology, and in particular to a laser cutting diaphragm dust removal device and a laser cutting machine. Background Technology

[0002] Against the backdrop of the rapid development of the new energy battery industry, the requirements for manufacturing precision and efficiency of products such as power batteries and energy storage batteries are becoming increasingly stringent. The processing quality of functional films in batteries, such as separator films, tab protective films, and encapsulation films, directly affects the consistency, safety, and lifespan of the battery.

[0003] Traditional mechanical cutting and die-cutting processes have gradually revealed problems such as burrs, warping, and thermal damage. Laser cutting technology, with its "cold processing" advantage, has become an ideal solution for cutting battery separators. Battery separators are often made of high-molecular polymers such as PET, PP, PE, and PI, possessing properties such as thinness, flexibility, and heat resistance. However, these materials generate a large amount of dust during laser cutting. Excessive dust can easily cause dust explosions in high-temperature environments, seriously affecting the safety of the processing environment. Furthermore, a large amount of dust also poses a serious threat to human health; long-term inhalation may lead to respiratory and lung diseases. Even with dust collection devices to absorb airborne dust, some dust still adheres to the separator surface due to electrostatic adsorption, affecting the processing quality of the separator.

[0004] Therefore, there is an urgent need to provide a new type of laser cutting diaphragm dust removal device and laser cutting machine to solve the above-mentioned technical problems in the prior art. Utility Model Content

[0005] The purpose of this invention is to provide a dust removal device for laser-cut diaphragm, which can fully capture the dust generated during the laser cutting process, improve the processing quality of the cut diaphragm, and protect the working environment and the health of the operators.

[0006] To achieve this objective, the present invention adopts the following technical solution:

[0007] The laser cutting diaphragm dust removal device includes several sets of dust removal components arranged at intervals. Each set of dust removal components includes two dust removal mechanisms arranged opposite to the laser cutting area. Each dust removal mechanism includes a dust removal pipe and a dust removal block. The dust removal block is hollow inside and connected to the dust removal pipe. The bottom of the dust removal block includes a dust removal section that is inclined at a preset angle. A negative pressure area is formed between the two dust removal sections of each set of dust removal components, which is directly opposite to the laser cutting area.

[0008] Optionally, the dust removal block further includes a fixing part, which is disposed on the top of the dust removal block and extends horizontally in a direction away from another dust removal block. The fixing part is connected to the dust removal pipeline.

[0009] Optionally, the dust removal block further includes a connecting part, the top of which is connected to the fixing part, and the bottom of which is connected to the dust removal part.

[0010] Optionally, the laser cutting area is located between any two adjacent conveyor rollers of the laser cutting machine, and the dust removal component is located between any two adjacent conveyor rollers.

[0011] Optionally, multiple laser cutting areas are provided, each corresponding to one of the dust removal components.

[0012] Optionally, in two adjacent dust removal components, the two nearest fixing parts are integrally formed so that the two adjacent dust removal blocks are connected to the same dust removal pipeline.

[0013] Optionally, the dust removal unit is detachably connected to a dust removal grid plate.

[0014] Optionally, the dust removal pipeline is equipped with a powder spraying device, which is used to spray dry powder onto the dust removal pipeline.

[0015] Optionally, a dust filter is provided at the end of the dust removal pipeline away from the dust removal block.

[0016] Another objective of this invention is to provide a laser cutting machine that includes a laser cutting diaphragm dust removal device as described in any of the above embodiments.

[0017] Beneficial effects:

[0018] This laser-cut diaphragm dust removal device employs several sets of spaced-apart dust removal components. These components simultaneously remove dust at different locations within the laser-cutting area, forming a comprehensive dust removal network. Compared to a single dust removal device, this significantly improves the dust removal range and effectiveness across the entire laser-cutting area. Furthermore, each set of dust removal components includes two opposing dust removal mechanisms. This symmetrical design ensures a more uniform airflow distribution around the laser-cutting area, more effectively capturing dust generated during the cutting process. It prevents dust escape due to uneven airflow, thus significantly improving dust removal efficiency, ensuring cleanliness during diaphragm production, and ultimately enhancing the quality and performance of the diaphragm product. The dust removal section at a preset angle at the bottom of the dust removal block, and the negative pressure area formed between the two dust removal sections of each set of components, directly facing the laser-cutting area, have significant practical value. This negative pressure area generates powerful suction, precisely drawing the dust generated during laser cutting into the dust removal block. This targeted dust collection method reduces the spread of dust in the air, minimizing dust pollution to the surrounding environment and equipment. It also prevents dust from re-adhering to the diaphragm, improving the diaphragm's purity and quality. This laser-cut diaphragm dust removal device effectively captures dust generated during the laser cutting process, improving the processing quality of the cut diaphragm while protecting the working environment and the health of operators. Attached Figure Description

[0019] Figure 1 This is a front view of the laser cutting machine provided in a specific embodiment of this utility model;

[0020] Figure 2 This is a partial enlarged view of the laser cutting area of ​​the laser cutting machine provided in a specific embodiment of this utility model;

[0021] Figure 3 This is an isometric view of the laser cutting diaphragm dust removal device provided in a specific embodiment of this utility model.

[0022] In the picture:

[0023] 10. Dust removal assembly; 101. Dust removal mechanism; 11. Dust removal pipeline; 111. Dust filter; 112. Powder spraying device; 12. Dust removal block; 121. Fixing part; 122. Connecting part; 123. Dust removal section; 124. Dust removal grid plate; 13. Negative pressure area;

[0024] 20. Laser; 21. Laser cutting area; 22. Laser beam; 23. Conveyor roller. Detailed Implementation

[0025] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0026] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," "fixed," and "abutting" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0027] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0028] In the description of this embodiment, the terms "upper," "lower," "right," and "left," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, 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. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0029] Please refer to Figure 1This embodiment first provides a laser cutting machine, which includes the laser cutting diaphragm dust removal device described in this embodiment. During use, when the diaphragm is conveyed to the laser cutting area 21 for cutting, the high temperature generated by the laser causes some of the diaphragm material to vaporize and form dust. At this time, the negative pressure area 13 formed between the two dust removal sections 123 in each dust removal assembly 10 comes into play, quickly sucking in the dust generated during cutting. Because the dust removal sections 123 are tilted at a preset angle, they can more effectively guide the dust into the dust removal block 12. This laser cutting machine can more effectively capture the dust generated during the cutting process, avoiding the problem of some dust escaping due to uneven airflow, thereby significantly improving dust removal efficiency, ensuring cleanliness during the diaphragm production process, and contributing to improving the quality and performance of the diaphragm product.

[0030] Combination Figure 1 and Figure 2 The laser cutting machine also includes a laser 20, which emits a high-energy laser beam 22 to cut the diaphragm. The laser cutting diaphragm dust removal device must avoid the path of the laser beam 22, which will not be described in detail here.

[0031] like Figure 2 and Figure 3 As shown, the laser cutting diaphragm dust removal device includes several sets of dust removal components 10 arranged at intervals. Each set of dust removal components 10 includes two dust removal mechanisms 101 arranged opposite to each other with respect to the laser cutting area 21. Each dust removal mechanism 101 includes a dust removal pipe 11 and a dust removal block 12. The dust removal block 12 is hollow inside and connected to the dust removal pipe 11. The bottom of the dust removal block 12 includes a dust removal part 123 that is inclined at a preset angle. A negative pressure area 13 is formed between the two dust removal parts 123 of each set of dust removal components 10, which is directly opposite to the laser cutting area 21.

[0032] The dust removal device for laser-cut diaphragm in this embodiment employs several sets of spaced-apart dust removal components 10, which can simultaneously perform dust removal at different locations in the laser cutting area 21, forming a comprehensive dust removal network. Compared to a single dust removal device, this significantly improves the dust removal range and effectiveness across the entire laser cutting area 21. Simultaneously, each set of dust removal components 10 includes two opposing dust removal mechanisms 101. This symmetrical design ensures a more uniform airflow distribution around the laser cutting area 21, more effectively capturing dust generated during the cutting process and preventing dust escape due to uneven airflow. This significantly improves dust removal efficiency, ensures cleanliness during diaphragm production, and contributes to improving the quality and performance of the diaphragm product. Furthermore, the dust removal section 123, inclined at a preset angle at the bottom of the dust removal block 12, and the negative pressure area 13 formed between the two dust removal sections 123 of each set of dust removal components 10, directly facing the laser cutting area 21, have significant practical value. This negative pressure area 13 generates strong suction, precisely drawing the dust generated during laser cutting into the dust removal block 12. This targeted dust collection method reduces the spread of dust in the air, minimizing dust pollution to the surrounding environment and equipment. It also prevents dust from re-adhering to the diaphragm, improving the diaphragm's purity and quality. This laser-cut diaphragm dust removal device effectively captures dust generated during the laser cutting process, improving the processing quality of the cut diaphragm while protecting the working environment and the health of operators.

[0033] Optionally, the dust collector block 12 further includes a fixing part 121, which is disposed on the top of the dust collector section 123. The fixing part 121 extends horizontally and in a direction away from the other dust collector block 12, and is connected to the dust collector pipe 11. The fixing part 121 is disposed on the top of the dust collector section 123, extends horizontally and in a direction away from the other dust collector block 12, and is connected to the dust collector pipe 11. This design makes the connection of the dust collector pipe 11 more reasonable and stable, avoiding mutual interference and entanglement between pipes, and facilitating equipment installation and maintenance. At the same time, this layout also facilitates the smooth flow of air in the dust collector pipe 11, reduces airflow resistance, and improves the overall performance of the dust collection system.

[0034] Furthermore, the aforementioned dust collector block 12 also includes a connecting portion 122, the top of which is connected to the fixing portion 121, and the bottom of which is connected to the dust collector portion 123. The connecting portion 122 effectively connects the fixing portion 121 and the dust collector portion 123, enhancing the structural stability of the entire dust collector block 12. During dust collection, the stable structure ensures that the relative positions of the dust collector portion 123 and the fixing portion 121 remain unchanged, ensuring the stability of the negative pressure area 13 and the continuity of the dust collection effect. In addition, the rational design of the connecting portion 122 also helps to disperse the pressure generated during dust collection, extending the service life of the dust collector block 12.

[0035] like Figure 2 As shown, the laser cutting area 21 is located between any two adjacent conveyor rollers 23 of the laser cutting machine, and the dust removal component 10 is located between any two adjacent conveyor rollers 23. This layout allows the dust removal device to promptly treat the dust generated during cutting while the diaphragm is being conveyed, reducing the diffusion and accumulation of dust during the conveying process. Simultaneously, placing the dust removal component 10 between the conveyor rollers 23 fully utilizes the equipment space, making the entire laser cutting machine structure more compact and improving space utilization; it also wraps around the conveyor rollers 23, bringing the dust removal point closer to the dust generation point in the laser cutting area 21.

[0036] Optionally, multiple laser-cutting areas 21 are provided, each corresponding to a dust removal component 10. This one-to-one correspondence between the laser-cutting areas 21 and the dust removal components 10 allows for precise dust removal for each laser-cutting area 21. Different cutting areas may generate different types and quantities of dust due to factors such as cutting parameters and diaphragm material. The corresponding dust removal components 10 can be adjusted and optimized according to actual conditions, improving the targeting and effectiveness of dust removal and further ensuring the consistency of diaphragm product quality.

[0037] like Figure 2 and Figure 3 As shown, in two adjacent dust removal components 10, the two closest fixing parts 121 are integrally formed, so that the two adjacent dust removal blocks 12 are connected to the same dust removal pipe 11. This design simplifies the layout of the dust removal pipe 11, reduces the number of connection points and bends in the pipe, reduces airflow resistance in the pipe, and improves dust removal efficiency. At the same time, the integrally formed structure enhances the connection strength between adjacent dust removal blocks 12, improving the stability and reliability of the entire dust removal system.

[0038] Optionally, the dust removal unit 123 is detachably connected to a dust removal grid plate 124. During the dust removal process, the dust removal grid plate 124 can intercept larger dust particles, preventing them from entering the dust removal pipeline 11 and causing blockage. The detachable design makes cleaning and replacing the dust removal grid plate 124 more convenient, reducing equipment maintenance time and costs, and ensuring the continuous and stable operation of the dust removal device. At the same time, the angle and height of the dust removal grid plate 124 can be adjusted using screws to prevent interference, ensuring that the dust removal grid plate 124 is directly facing the laser cutting area 21, thereby improving dust removal capacity.

[0039] In this embodiment, the dust removal pipeline 11 is equipped with a powder spraying device 112, which is used to spray dry powder onto the dust removal pipeline 11. The dry powder mixes with the dust, which on the one hand reduces the stickiness of the dust, preventing it from adhering to the inner wall of the pipeline, and on the other hand, facilitates subsequent filtration and separation. The dry powder can also absorb moisture in the dust removal pipeline 11, reducing the stickiness of the dust generated during cutting, preventing the dust from clumping and clogging the dust removal pipeline 11 due to moisture, thus improving the dust removal effect and the service life of the equipment.

[0040] Furthermore, a dust filter 111 is installed at the end of the dust removal pipeline 11 furthest from the dust removal block 12. The dust filter 111 can effectively filter dust and dry powder from the airflow, making the exhaust gas cleaner, reducing pollution to the working environment, meeting environmental protection requirements, and protecting the working environment and the health of operators.

[0041] In the description of this specification, references to terms such as "some embodiments," "other embodiments," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0042] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A laser-cut diaphragm dust removal device, characterized in that, It includes several sets of dust removal components arranged at intervals. Each set of dust removal components includes two dust removal mechanisms arranged opposite to each other with respect to the laser cutting area. Each dust removal mechanism includes a dust removal pipe and a dust removal block. The dust removal block is hollow inside and connected to the dust removal pipe. The bottom of the dust removal block includes a dust removal part that is inclined at a preset angle. A negative pressure area is formed between the two dust removal parts of each set of dust removal components, which is directly opposite to the laser cutting area.

2. The laser-cut diaphragm dust removal device according to claim 1, characterized in that, The dust removal block also includes a fixing part, which is disposed on the top of the dust removal block. The fixing part extends horizontally and in a direction away from another dust removal block. The fixing part is connected to the dust removal pipeline.

3. The laser-cut diaphragm dust removal device according to claim 2, characterized in that, The dust removal block also includes a connecting part, the top of which is connected to the fixing part, and the bottom of which is connected to the dust removal part.

4. The laser-cut diaphragm dust removal device according to claim 3, characterized in that, The laser cutting area is located between any two adjacent conveyor rollers of the laser cutting machine, and the dust removal component is located between any two adjacent conveyor rollers.

5. The laser-cut diaphragm dust removal device according to claim 4, characterized in that, The laser cutting area is provided in multiple ways, each corresponding to a dust removal component.

6. The laser-cut diaphragm dust removal device according to claim 5, characterized in that, In two adjacent dust removal components, the two nearest fixing parts are integrally formed so that the two adjacent dust removal blocks are connected to the same dust removal pipeline.

7. The laser-cut diaphragm dust removal device according to claim 1, characterized in that, The dust removal unit is detachably connected to a dust removal grid plate.

8. The laser-cut diaphragm dust removal device according to claim 7, characterized in that, The dust removal pipeline is equipped with a powder spraying device, which is used to spray dry powder onto the dust removal pipeline.

9. The laser-cut diaphragm dust removal device according to claim 8, characterized in that, A dust filter is installed at the end of the dust removal pipeline away from the dust removal block.

10. A laser cutting machine, characterized in that, Includes the laser-cut diaphragm dust removal device as described in any one of claims 1-9.

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