Dust removal device and laser cutting production equipment

Abstract

The utility model relates to the technical field of batteries, and provides a dust removal device and laser cutting production device.The dust removal device comprises a dust removal assembly, a dust suction pipeline, a first air channel structure and a second air channel structure, the dust removal assembly is arranged outside a to-be-treated workpiece and can define a dust removal area with the to-be-treated workpiece, and the dust suction pipeline communicates with the dust removal area; the first air channel structure is configured to be capable of forming an airflow area in the dust removal area, and the second air channel structure is configured to be capable of forming a negative pressure area in the dust removal area. According to the dust removal device, the combined design is reasonable, dust can be fully absorbed under the synergistic effect of the airflow area and the negative pressure area, therefore, the dust removal effect of the dust removal device can be improved, the use field of the dust removal device is expanded, and when the dust removal device is applied to laser cutting of the pole piece, the dust removal efficiency is improved. The dust removal requirements of the positive plate and the negative plate can be simultaneously met, and the production efficiency of the positive plate and the battery can be greatly improved.

Description

Technical Field

[0001] This application relates to the technical field of batteries, and particularly to a dust removal device and a laser cutting production device. Background Art

[0002] In the production process of batteries, laser cutting can significantly improve the production efficiency of batteries. During laser cutting, a large amount of dust is generated. To prevent the dust from affecting the performance and safety of the batteries, it is necessary to absorb and process the dust.

[0003] Currently, the commonly used absorption and processing method is to set a dust removal device on one side of the electrode sheet. This dust removal device sucks air and removes dust from the side, resulting in poor dust removal effect. Utility Model Content

[0004] This application provides a dust removal device and a laser cutting production device, which can improve the dust removal effect.

[0005] The first aspect of this application provides a [device], including:

[0006] A dust removal component, which is arranged outside the workpiece to be processed and can enclose a dust removal area with the workpiece to be processed;

[0007] A dust suction pipeline, which is connected to the dust removal area;

[0008] A first air duct structure, which is configured to be able to form an air flow area inside the dust removal area;

[0009] And a second air duct structure, which is configured to be able to form a negative pressure area inside the dust removal area.

[0010] The dust removal device according to the first aspect of this application includes a dust removal component, a dust suction pipeline, a first air duct structure, and a second air duct structure. The dust removal component can form a dust removal area, the first air duct structure can form an air flow area, and the second air duct structure can form a negative pressure area, so that the dust generated during laser cutting can be blown up by the air flow in the air flow area and be carried away by the air flow in the air flow area from the laser cutting position. The blown-up dust can continue to be transported to the negative pressure area, and then continue to be transported through the dust suction pipeline until the dust is absorbed.

[0011] In the dust removal device in the embodiments of this application, the combination design is reasonable, and the dust can be fully absorbed under the synergistic effect of the air flow area and the negative pressure area. Therefore, the dust removal effect of the dust removal device can be improved, and the application field of the dust removal device is expanded. When this dust removal device is applied to laser cutting of electrode sheets, it can simultaneously meet the dust removal requirements of both positive electrode sheets and negative electrode sheets, and can significantly improve the production efficiency of electrode sheets and batteries.

[0012] In a possible implementation manner, the air flow region is formed near the surface of the workpiece to be processed, and the negative pressure region is formed near the air flow region.

[0013] In a possible implementation manner, the first air duct structure can form an air outlet in the region near the workpiece to be processed, and the second air duct structure can form a negative pressure port near the air outlet.

[0014] In a possible implementation manner, the air outlet includes a first air outlet and a second air outlet arranged oppositely. The first air outlet has an orientation along a first direction, and the second air outlet has an orientation along a second direction. The gas generated by the first air duct structure can flow out from the first air outlet and form the first bottom boundary of the negative pressure region, and the gas generated by the first air duct structure can flow out from the second air outlet and form the second bottom boundary of the negative pressure region.

[0015] In a possible implementation manner, the air outlet further includes a third air outlet away from the first air outlet or the second air outlet. The third air outlet has an orientation along a third direction, and the gas generated by the first air duct structure can flow out from the third air outlet and form the top boundary of the negative pressure region.

[0016] In a possible implementation manner, the dust removal component is configured as a hollow structure and has an air flow channel. The first air outlet, the second air outlet, and the third air outlet are all connected to the air flow channel, and the gas generated by the first air duct structure can enter the air flow channel.

[0017] In a possible implementation manner, the dust removal component is configured as a solid structure, and the first air duct structure can pass through the dust removal component and form the first air outlet, the second air outlet, and the third air outlet.

[0018] In a possible implementation manner, the dust removal component at least includes:

[0019] A first dust removal monomer, and the first air outlet is formed on the first dust removal monomer;

[0020] And a second dust removal monomer, which is arranged oppositely to the first dust removal monomer. The second air outlet is formed on the second dust removal monomer, and the third air outlet is formed on the first dust removal monomer and / or the second dust removal monomer.

[0021] In a possible implementation manner, the second air duct structure is connected to the dust suction pipe, and one end of the dust suction pipe located in the dust removal region forms the negative pressure port.

[0022] In a possible implementation, the dust suction pipeline and the dust removal component are of an integrated structure.

[0023] In a possible implementation, the workpiece to be processed includes a strip structure having a first side and a second side, and the dust removal component includes:

[0024] A first dust removal component configured to form a first dust removal area on the first side;

[0025] And a second dust removal component configured to form a second dust removal area on the second side.

[0026] In a possible implementation, the dust suction pipeline includes:

[0027] A first pipeline communicating with the first dust removal area;

[0028] And a second pipeline communicating with the second dust removal area.

[0029] In a possible implementation, the first side is the side to be processed of the workpiece to be processed, and at least the first dust removal area in the first dust removal area and the second dust removal area forms the air flow area and the negative pressure area, and at least the negative pressure area is formed in the second dust removal area.

[0030] In a possible implementation, the first air duct structure includes a positive pressure device.

[0031] In a possible implementation, the second air duct structure includes a negative pressure device.

[0032] The second aspect of the present application provides a laser cutting production device, including:

[0033] A loading fixture for loading the workpiece to be processed;

[0034] A laser cutting mechanism for laser cutting the workpiece to be processed;

[0035] And the dust removal device described in the first aspect, which is used to absorb dust in laser cutting.

[0036] According to the laser cutting production device described in the second aspect of the present application, based on the setting of the dust removal device, the dust removal device can fully cover the dust generated during the laser cutting process, achieve sufficient absorption of the dust, and thus improve the dust removal effect on the dust.

[0037] In a possible implementation, the loading fixture is used to load the workpiece to be processed in a strip structure, the strip structure has a first side and a second side, and the dust removal component in the dust removal device includes:

[0038] The first dust removal component, which is configured to be able to form a first dust removal area on the first side;

[0039] And a second dust removal component, which is configured to be able to form a second dust removal area on the second side.

[0040] In a possible implementation manner, the first side is the processing side of the workpiece to be processed. At least the first dust removal area in the first dust removal area and the second dust removal area forms the air flow area and the negative pressure area, and at least the negative pressure area is formed in the second dust removal area.

[0041] In a possible implementation manner, the laser cutting production equipment further includes:

[0042] A lifting mechanism, the first dust removal component is connected to the lifting mechanism, and the first dust removal component can approach or move away from the loading fixture under the drive of the lifting mechanism. Description of the Drawings

[0043] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0044] Figure 1 Shows an exploded view of a laser cutting production equipment provided according to an embodiment of the present application;

[0045] Figure 2 Shows a structural schematic diagram of a dust removal pipeline provided according to an embodiment of the present application;

[0046] Figure 3 Shows a structural schematic diagram of a pipe joint provided according to an embodiment of the present application;

[0047] Figure 4 Shows a structural schematic diagram of a dust removal device provided according to an embodiment of the present application;

[0048] Figure 5 Shows Figure 4 A partial enlarged view of part A in

[0049] Reference Signs:

[0050] 100 - Loading fixture; 101 - Installation plane;

[0051] 200 - Laser cutting mechanism; 210 - Laser; 220 - Laser mounting bracket;

[0052] 300 - Dust removal device; 301 - First dust removal area; 302 - Second dust removal area; 303 - Air flow channel; 304 - Natural gap; 310 - First dust removal component; 320 - Second dust removal component; 330 - Dust suction pipe; 340 - First air duct structure; 350 - Second air duct structure; 360 - First dust removal unit; 370 - Second dust removal unit; 331 - First pipeline; 332 - Second pipeline; 341 - Air outlet; 3411 - First air outlet; 3412 - Second air outlet; 3413 - Third air outlet; 351 - Negative pressure port;

[0053] 400 - Lifting mechanism;

[0054] 500 - Dust collector;

[0055] 600 - Dust removal pipeline; 610 - First dust removal pipe; 620 - Second dust removal pipe;

[0056] 700 - Pipe joint; 710 - Filling part; 10 - Electrode plate. Detailed implementation mode

[0057] To make the objectives, technical solutions and advantages of the embodiments of this application clearer, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of this application. Apparently, the described embodiments are some but not all of the embodiments of this application. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the scope of protection of this application.

[0058] A battery generally includes a housing and a battery core disposed within the housing. The battery core is formed by stacking or winding multiple electrode plates, and the electrode plates include positive electrode plates and negative electrode plates. To improve the production efficiency of the battery, laser cutting is a commonly used method for cutting the electrode plates.

[0059] For lithium-ion batteries, the positive electrode plate usually includes aluminum, and the negative electrode plate usually includes copper. Based on the characteristics of laser cutting, metal dust is generated during the laser cutting of both the positive and negative electrode plates. Due to the difference in the above materials, a dust removal device with better dust removal effect is required for the positive electrode plate to meet the requirements of laser cutting. Otherwise, the dust adhering to the positive electrode plate is likely to cause a short circuit, resulting in damage to the electrode plate or causing a safety accident.

[0060] In the related art, the dust removal device has a simple structure and is usually designed to absorb dust on one side of the electrode sheet. The dust removal effect is not good, making such dust removal devices unable to meet the laser cutting requirements for the positive electrode sheet. Laser cutting technology is more commonly used for cutting the negative electrode sheet, which affects the overall production efficiency of the battery.

[0061] Based on the above situation and problems, the embodiments of the present application provide a dust removal device. This dust removal device can fully surround the laser cutting position of the electrode sheet, enabling the dust removal device to cover the dust in a full range, thereby improving the dust removal effect of the dust removal device.

[0062] To achieve a full range of surrounding of the laser cutting position, the dust removal device in the embodiments of the present application has redesigned the structural shape, gas path design, etc. of the dust removal device. In terms of the structural shape, the dust removal device can form a dust removal area surrounding the laser cutting position. In terms of the gas path design, this dust removal device can absorb more dust through the combination of positive pressure air flow and negative pressure air flow, and the two work together to achieve the dust removal purpose of the dust removal device.

[0063] The dust removal device in the embodiments of the present application can fully absorb the dust formed during the laser cutting process, can simultaneously meet the laser cutting requirements for both the positive electrode sheet and the negative electrode sheet, and can improve the overall production efficiency of the battery.

[0064] In the embodiments of the present application, it should be noted that the dust removal device can also be applicable to other cutting processes, such as mechanical cutting and other fields. More specifically, when using a mechanical cutting machine to cut metal materials such as profiles, dust will also be generated, and the dust removal device in the embodiments of the present application can also be used to absorb such dust. In addition, this dust removal device can also be applied to other production operations that can generate dust.

[0065] In the embodiments of the present application, it should be noted that the dust removal of the positive electrode sheet or the negative electrode sheet by the dust removal device is only for illustrative purposes, and it does not mean that the dust removal device can only remove dust from the positive electrode sheet or the negative electrode sheet. The workpieces to be processed that can generate dust, including the positive electrode sheet, the negative electrode sheet, and the above-mentioned metal materials, are all applicable to this dust removal device.

[0066] In the embodiments of the present application, it should be noted that the dust removal device can be used alone, that is, applied to occasions where dust removal is required. For example, the dust removal device can be installed in some occasions where dust removal is needed. The dust removal device can also be integrally designed into some industrial production equipment and serve as a component of the industrial production equipment to complete the dust removal process.

[0067] The embodiment of the present application also provides a laser cutting device, which can be designed to enable automatic loading and unloading of the workpiece to be processed or automated transportation of the workpiece to be processed. The laser cutting device is configured with the above-mentioned dust removal device. After the laser cutting device completes the laser cutting of the workpiece to be processed or during the laser cutting of the workpiece to be processed, the dust removal device can absorb the dust generated during the laser cutting process.

[0068] Figure 1 Fig. shows an exploded schematic view of a laser cutting device provided according to an embodiment of the present application. Please refer to Figure 1 This laser cutting device includes a loading fixture 100, a laser cutting mechanism 200, and a dust removal device 300.

[0069] The loading fixture 100 is used to load the workpiece to be processed. According to the specific types of different workpieces to be processed, the loading fixture 100 can have various styling designs. For example, when the laser cutting device is used to cut the pole piece 10 (as Figure 5 shown), the loading fixture 100 can be designed into a structure form capable of loading the pole piece 10. In some embodiments, the loading fixture 100 can be designed into a platform structure. The top surface of the platform structure forms an installation plane 101, and the pole piece 10 can be laid flat on the installation plane 101. At the same time, the platform structure can use the vacuum adsorption method to make the pole piece 10 adsorbed on the installation plane 101.

[0070] It should be noted that the embodiment of the present application does not particularly limit the specific structures of the workpiece to be processed and the loading fixture 100. It should be understood that different loading fixtures 100 can be adapted according to different workpieces to be processed.

[0071] In some embodiments, the loading fixture 100 can be used as an independent transportation tool, that is, the loading fixture 100 can transport the workpiece to be processed to a designated position, such as transporting the workpiece to be processed to the position where the laser cutting mechanism 200 is located for laser cutting. In other embodiments, the loading fixture 100 can also be used as a part of the overall device, such as a transportation part of the laser cutting production device, to achieve automated transportation of the workpiece to be processed.

[0072] The laser cutting mechanism 200 is used to perform laser cutting on the workpiece to be processed. The laser cutting mechanism 200 is configured with a laser 210, and the laser emitted by the laser 210 can act on the workpiece to be processed to cut the workpiece to be processed.

[0073] For the laser 210, to improve the energy utilization rate of the laser 210, the most energy-dense part of the laser, i.e., the focus of the laser, can act on the workpiece to be processed. For this purpose, the laser 210 can be installed on an adjustment mechanism that can adjust the distance between the laser 210 and the workpiece to be processed, so as to achieve the purpose of focusing the laser 210.

[0074] The adjustment mechanism can include a fixed installation part and a power adjustment part. The fixed installation part can achieve the overall fixed installation of the adjustment mechanism. The laser 210 is installed on the power adjustment part, and the power adjustment part can adjust the position of the laser 210. The power adjustment part can be a linear module, a screw mechanism, etc. The specific type of the power adjustment part is not particularly limited in this application.

[0075] In some embodiments, the laser cutting mechanism 200 can further include a laser mounting bracket 220. The above-mentioned laser 210 can be installed on the laser mounting bracket 220, and the laser mounting bracket 220 can be installed on the above-mentioned adjustment mechanism.

[0076] On the other hand, the number and arrangement mode of the lasers 210 are not limited in the embodiments of this application. It can be understood that the laser generated by each laser 210 can cut the workpiece to be processed. For example, in Figure 1 the illustrated example, three lasers 210 are arranged in a row or three columns of lasers 210 are arranged side by side on the laser mounting bracket 220, and three different cutting positions can be formed on the workpiece to be processed, so as to complete the multi-part cutting of the workpiece to be processed through one cutting action. The above setting method is applicable to high-efficiency cutting occasions. For example, when the pole piece 10 needs to be cut, the pole piece 10 can be multi-piece or long-width. At this time, multiple pole pieces 10 can be formed through one cutting, greatly improving the production efficiency of the pole piece 10, and thus improving the production efficiency of the battery.

[0077] The dust removal device 300 in the laser cutting production equipment is used to absorb the dust generated during laser cutting. The dust removal device 300 can surround the outside of the loading fixture 100 or the outside of the laser cutting position, so that the dust generated during the laser cutting process can be surrounded by the dust removal device 300.

[0078] In the laser cutting production equipment in the embodiments of this application, based on the setting of the dust removal device 300, the dust removal device 300 can fully cover the dust generated during the laser cutting process, achieve full absorption of the dust, and thus improve the dust removal effect on the dust.

[0079] As described above, when using this laser cutting production equipment to cut the workpiece to be processed, there are various combinations of the loading fixture 100 and the workpiece to be processed. This laser cutting production equipment can achieve the cutting of workpieces to be processed such as strip structures (for example, the pole piece 10). For the sake of simplicity of description and easy understanding, the following embodiments will mainly take the strip structure (for example, the pole piece 10) as an example to illustrate the structural composition of the laser cutting production equipment.

[0080] In some embodiments, the workpiece to be processed in a strip structure includes a first side and a second side. The dust removal device 300 includes a first dust removal component 310 and a second dust removal component 320. The first dust removal component 310 is configured to be able to form a first dust removal area 301 on the first side, and the second dust removal component 320 is configured to be able to form a second dust removal area 302 on the second side.

[0081] Here, the dust removal device 300 is set to be able to adapt to the workpiece to be processed in a strip structure. Among them, the first dust removal component 310 can remove dust from the first side of the workpiece to be processed, and the second dust removal component 320 can remove dust from the second side of the workpiece to be processed. The combination of the first dust removal component 310 and the second dust removal component 320 realizes the dust removal work of the workpiece to be processed. The two can be designed and manufactured separately, which can reduce the production cost and manufacturing difficulty.

[0082] It can be understood that the first dust removal area 301 can surround the first side of the workpiece to be processed, specifically, it can surround the cutting position on the first side of the workpiece to be processed. The second dust removal area 302 can surround the second side of the workpiece to be processed, specifically, it can surround the cutting position on the second side of the workpiece to be processed. The combination of the first dust removal area 301 and the second dust removal area 302 can cover the dust in a full range.

[0083] With reference to Figure 1 the orientation identification shown in, the first side can be understood as the upper side of the workpiece to be processed, and the second side can be understood as the lower side of the workpiece to be processed. When the workpiece to be processed is laid flat on the loading fixture 100, the first dust removal component 310 can be arranged on the upper side of the workpiece to be processed, and the second dust removal component 320 can be arranged on the lower side of the workpiece to be processed.

[0084] Therefore, it can be understood that the first side of the workpiece to be processed is the main cutting position of the laser. After the laser shoots at the first side, intense cutting actions will occur and a large amount of dust will be generated. Based on this, for the first dust removal component 310, a gas path design with stronger dust removal ability can be adopted. For example, a positive pressure air flow and a negative pressure air flow can be formed in the first dust removal area 301. The former is used to blow up the dust and prevent the dust from escaping from the first dust removal area 301, and the latter is used to absorb the blown-up dust. For the second dust removal component 320, considering factors such as the amount of dust formed, a negative pressure air flow can be formed in the second dust removal area 302.

[0085] In addition to the above, please refer to Figure 1 , the laser cutting production equipment in the embodiments of the present application may further include a lifting mechanism 400, and the foregoing first dust removal component 310 may be connected to the lifting mechanism 400. The first dust removal component 310 can approach or move away from the loading fixture 100 under the drive of the lifting mechanism 400.

[0086] The setting of the lifting mechanism 400 enables the first dust removal component 310 to approach or move away from the loading fixture 100. When it is necessary to load the workpiece to be processed, the lifting mechanism 400 can drive the first dust removal component 310 away from the loading fixture 100 to leave enough space. When it is necessary to cut the workpiece to be processed, the lifting mechanism 400 can drive the first dust removal component 310 to approach the loading fixture 100 again.

[0087] The lifting mechanism 400 can adopt a linear module or a screw mechanism and other power mechanisms capable of outputting linear reciprocating motion. It can be fixedly installed at an appropriate position of the laser cutting production equipment, and then the first dust removal component 310 is installed at the output end of the lifting mechanism 400.

[0088] In addition, in combination with the foregoing, the laser 210 can be installed on an adjustment mechanism so that the laser 210 can approach or move away from the loading fixture 100.

[0089] The embodiments of the present application do not particularly limit the specific structural composition of the laser cutting production equipment. In the case of being configured with a loading fixture 100, a laser cutting mechanism 200, and a dust removal device 300, other various mechanisms can be configured for the laser cutting production equipment, or these mechanisms can be deformed, so that the laser cutting production equipment can meet the cutting requirements for different workpieces to be processed.

[0090] In some embodiments, please refer to Figure 1 , the laser cutting production equipment further includes a dust collector 500 and a dust removal pipeline 600 connected between the dust collector 500 and the dust removal device 300. The dust absorbed by the dust removal device 300 can enter the dust removal pipeline 600 and be absorbed by the dust collector 500, and then the dust collector 500 performs subsequent treatment on the dust.

[0091] The embodiments of the present application do not limit the specific type of the dust collector 500. The dust collector 500 can absorb the dust by means of adsorption or chemical treatment.

[0092] To simplify the connection, the hose can be fastened around the outer side of the end of the rigid pipe by a hose clamp. At this time, a step (formed by the end of the rigid pipe) will be formed on the inner side of the connection between the hose and the rigid pipe. During the laser cutting process, dust may accumulate at the step, affecting the subsequent conveyance of the dust and the filament. To avoid this phenomenon, the embodiment of the present application also provides a pipe joint 700.

[0093] Figure 2 Fig. 4 shows a schematic structural view of a dust removal pipe according to an embodiment of the present application; Figure 3 Fig. 6 shows a schematic structural view of a pipe joint according to an embodiment of the present application.

[0094] In some embodiments, please refer to Figure 2 and Figure 3 , the dust removal pipe 600 includes a first dust removal pipe 610 and a second dust removal pipe 620. The first dust removal pipe 610 and the second dust removal pipe 620 are connected through a pipe joint 700. The pipe joint 700 has a filling portion 710 formed inside thereof that is flush with the inner wall surface of the rigid pipe.

[0095] The inner wall surface here refers to the surface formed by the through hole of the rigid pipe. The filling portion 710 can be flush with this surface so that the through hole of the pipe joint 700 can be smoothly docked with the through hole of the rigid pipe. The filling portion 710 can eliminate the step formed by the end of the rigid pipe. When the dust enters the rigid pipe from the hose, the dust and the filament can smoothly enter the rigid pipe, thereby avoiding accumulation at the step.

[0096] In some specific embodiments, the filling portion 710 formed inside the pipe joint 700 is in the shape of a boss, and the thickness of the boss-shaped filling portion 710 is the same along its length direction.

[0097] In some specific embodiments, please refer to Figure 3 , the filling portion 710 formed inside the pipe joint 700 is in the shape of a cone, and the thickness of the conical filling portion 710 is different along its length direction. For example, its thickness gradually increases in the direction from the first dust removal pipe 610 to the second dust removal pipe 620.

[0098] Figure 4 Fig. 28 shows a schematic structural view of a dust removal device according to an embodiment of the present application; Figure 5 Fig. 30 shows Figure 4 a partial enlarged view of the local part A in Figure 1 , Figure 4 and Figure 5 , in the embodiment of the present application, the dust removal device 300 includes a dust removal component, a dust suction pipe 330, a first air duct structure 340, and a second air duct structure 350.

[0099] As described above, the dust removal component can be the first dust removal component 310 or the second dust removal component 320. This dust removal component constitutes the main physical structure of the dust removal device 300 and belongs to the category of the structural design of the dust removal device 300. By reasonably designing this dust removal component, a structure that can cover dust in all ranges according to different workpieces to be processed can be formed. The dust suction pipe 330, the first air duct structure 340, and the second air duct structure 350 belong to the category of the air path design of the dust removal device 300. By reasonably designing the first air duct structure 340, the second air duct structure 350, and the dust suction pipe 330, the dust removal device 300 can fully absorb the dust covered in all ranges.

[0100] The dust suction pipe 330 is connected to the dust removal area, and the dust in the dust removal area can be transported to other positions through the dust suction pipe 330. For example, the dust suction pipe 330 can be connected to the aforementioned dust removal pipe 600, so that the dust can ultimately be absorbed by the dust removal machine 500.

[0101] The first air duct structure 340 is configured to be able to form an air flow area inside the dust removal area (taking the first dust removal area 301 as an example). The first air duct structure 340 can form an air flow area by means of positive pressure air flow. For example, the first air duct structure 340 can include positive pressure equipment, such as a blower, etc. An air flow area can be formed by blowing air into the dust removal area.

[0102] This air flow area makes a positive pressure environment formed in the dust removal area. This air flow area can directly act on the cutting position, and the dust generated during the laser cutting process can be blown up by the air flow in this air flow area and be carried away by the air flow area away from the laser cutting position.

[0103] It can be understood that in order to improve the dust having better regularity under the action of the air flow area, this air flow area can be restricted to a certain extent. For example, a boundary can be set for the air flow area to prevent the dust from being scattered after being acted on by the air flow area, so that the dust can be tightened and concentrated together, facilitating its absorption and treatment.

[0104] The second air duct structure 350 is configured to be able to form a negative pressure area inside the dust removal area. The second air duct structure 350 can form a negative pressure area by means of negative pressure air flow. For example, the second air duct structure 350 can include negative pressure equipment, such as a dust removal machine, etc.

[0105] This negative pressure area also makes a negative pressure environment formed in the dust removal area. This negative pressure area can directly act on the blown-up dust. After the dust is blown up in the air flow area, the dust can flow towards the negative pressure area, so that the dust can be absorbed and treated.

[0106] In the embodiments of the present application, the dust removal component can form a dust removal area, the first air duct structure 340 can form an air flow area, and the second air duct structure 350 can form a negative pressure area, so that the dust generated during the laser cutting process can be blown up by the air flow in the air flow area and carried away by the air flow area to leave the laser cutting position. The blown-up dust can continue to be transported to the negative pressure area, and then continue to be transported via the dust suction pipe 330 until the dust is absorbed.

[0107] The dust removal device 300 in the embodiments of the present application has a reasonable combined design. Under the synergistic effect of the air flow area and the negative pressure area, dust can be fully absorbed. Thereby, the dust removal effect of the dust removal device 300 can be improved, and the application field of the dust removal device 300 can be expanded. When the dust removal device 300 is applied to laser cutting of the electrode plate 10, it can simultaneously meet the dust removal requirements of the positive electrode plate and the negative electrode plate, and can greatly improve the production efficiency of the electrode plate 10 and the battery.

[0108] In the embodiments of the present application, the formation method of the air flow area can be reflected through reasonable structural design, can be achieved through reasonable air path design, or a combination of structural design and air path design can be adopted.

[0109] For the structural design, for example, the dust removal component can be designed into a structure that can enclose the required area. This area can be the dust removal area or a part of the dust removal area. Then, by introducing air flow into this area through the first air duct structure 340, the air flow can flow in this area to form an air flow area. In the embodiments where the air flow area is formed by structural design, the surfaces of the parts of the structure used to form the air flow area should be as smooth as possible and the transition between the surfaces should be as smooth as possible. Corners, protrusions, etc. can be avoided as much as possible.

[0110] For the air path design, the formation of the air flow area can be achieved through the combination of air flows. For example, the required air flow area can be formed by setting multiple air outlets 341. This design method can be referred to the following embodiments.

[0111] In some embodiments, the air flow area is formed near the surface of the workpiece to be processed, and the negative pressure area is formed near the negative pressure area.

[0112] Through the above design, the dust can be blown up by the air flow area at the first time of generation and carried away by the air flow area to leave the workpiece to be processed. This design method of the air flow area is beneficial to improving the dust removal rate. The design method of the negative pressure area close to the air flow area can make the dust be transported to the negative pressure area with a shorter path, and can prevent the phenomenon that dust cannot be absorbed due to insufficient negative pressure.

[0113] In some embodiments, please refer to Figure 4 and Figure 5, the first airway structure 340 can form an air outlet 341 in the area close to the workpiece to be processed, and the second airway structure 350 can form a negative pressure port 351 near the air outlet 341.

[0114] The first airway structure 340 can introduce air flow into the dust removal component. After the air flow flows out from the air outlet 341, an air flow area can be formed in the dust removal component. The second airway structure 350 can form a negative pressure port 351 near the air outlet 341, and an adsorption force can be formed at the negative pressure port 351, thereby completing the absorption of dust.

[0115] It can be understood that the air outlet 341 can be one or more. When the air outlet 341 is one, the air outlet 341 can be combined with the above-mentioned structural design of the dust removal component to form a stable air flow area; when the air outlet 341 is multiple, a stable air flow area can be formed by reasonably arranging the orientation of the air outlet 341.

[0116] In some embodiments, please refer to Figure 5 , the air outlet 341 includes a first air outlet 3411 and a second air outlet 3412 arranged oppositely. The first air outlet 3411 has an orientation in the first direction (A direction), and the second air outlet 3412 has an orientation in the second direction (B direction). The gas generated by the first airway structure 340 can flow out from the first air outlet 3411 and form the first bottom boundary of the negative pressure area. The gas generated by the first airway structure 340 can flow out from the second air outlet 3412 and form the second bottom boundary of the negative pressure area.

[0117] The gas generated by the first airway structure 340 can flow out from the first air outlet 3411 and the second air outlet 3412. The gas flowing out from the first air outlet 3411 can shoot towards the workpiece to be processed along the first direction, and a first air curtain will be formed between the first air outlet 3411 and the workpiece to be processed. The gas flowing out from the first air outlet 3411 can blow up dust while preventing the dust from passing through the first air curtain. The gas flowing out from the second air outlet 3412 can shoot towards the workpiece to be processed along the second direction, and a second air curtain will be formed between the second air outlet 3412 and the workpiece to be processed. The gas flowing out from the second air outlet 3412 can blow up dust while preventing the dust from passing through the second air curtain. The above-mentioned first air curtain and second air curtain can form the first bottom boundary and the second bottom boundary.

[0118] It can be understood that different first bottom boundaries and second bottom boundaries can be formed by changing the orientations of the first direction and the second direction. Combining with the foregoing, when it is necessary to make the air flow area close to the workpiece to be processed, based on Figure 5In the orientation shown, the first direction may be offset downward and to the right, and the second direction may be offset downward and to the left, such that the first air curtain and the second air curtain generally form two sides of an inverted trapezoid.

[0119] In some embodiments, referring to Figure 5 , the angle between the first direction and the horizontal plane is α, and α satisfies the relationship: 90° < α < 135°; the angle between the second direction and the horizontal plane is β, and β satisfies the relationship: 45° < β < 70°.

[0120] By setting α and β at the above angles, the airflow can be inclined to the workpiece to be processed, so that the dust can be blown up and gathered in the area between the first air outlet 3411 and the second air outlet 3412, improving the absorption and treatment effect of the dust.

[0121] In other embodiments, α and β can also be set to other angular relationships, and the embodiments of the present application do not make special restrictions on this.

[0122] In some embodiments, referring to Figure 5 , the air outlet 341 further includes a third air outlet 3413 away from the first air outlet 3411 or the second air outlet 3412. The third air outlet 3413 has an orientation along the third direction (C direction), and the gas generated by the first airway structure 340 can flow out from the third air outlet 3413 and form the top boundary of the dust removal area.

[0123] The third air outlet 3413 can form a more stable airflow area together with the above-mentioned first air outlet 3411 and second air outlet 3412. For example, the third direction can be the horizontal direction, and the third air outlet 3413 is located above the first air outlet 3411 and the second air outlet 3412. At this time, the airflow flowing out from the third air outlet 3413 can form a third air curtain above the first air curtain and the second air curtain, and the first air curtain, the second air curtain, and the third air curtain form an airflow area.

[0124] Referring to Figure 5 , the airflow blown out from the first air outlet 3411 flows along the A direction, the airflow blown out from the second air outlet 3412 flows along the B direction, and the airflow blown out from the third air outlet 3413 flows along the C direction. The A direction, the B direction, and the C direction enclose an airflow area, and the dust in the airflow area is then absorbed along the S direction through the dust collection pipe 330.

[0125] In some embodiments, the dust removal component is configured as a hollow structure and has an airflow channel 303. The first air outlet 3411, the second air outlet 3412, and the third air outlet 3413 are all connected to the airflow channel 303, and the gas generated by the first airway structure 340 can enter the airflow channel 303.

[0126] As described above, the first airway structure 340 may include a positive pressure device, which may be connected to the airflow passage 303, and the airflow generated by the positive pressure device may flow out from the first air outlet 3411, the second air outlet 3412, and the third air outlet 3413.

[0127] As described above, the first airway structure 340 may include a positive pressure device, which may be configured with three output pipelines. The three output pipelines may pass through the dust removal component, and the airflow in the output pipelines may flow out from the first air outlet 3411, the second air outlet 3412, and the third air outlet 3413.

[0128] It should be noted that the dust removal component in the embodiments of the present application may adopt an integral structure form or a split structure form. When it adopts the integral structure form, the dust removal area is surrounded by the dust removal component of the integral structure form, such as the first dust removal area 301 or the second dust removal area 302. When it adopts the split structure form, the dust removal area is surrounded by multiple components, such as the first dust removal area 301 or the second dust removal area 302.

[0129] The following embodiments will introduce the dust removal component in the split structure form, and the dust removal component in the integral structure form can be designed according to the dust removal component in the split structure form.

[0130] In some embodiments, please refer to Figure 5 , the dust removal component at least includes a first dust removal monomer 360 and a second dust removal monomer 370. The first air outlet 3411 is formed on the first dust removal monomer 360. The second dust removal monomer 370 is disposed opposite to the first dust removal monomer 360. The second air outlet 3412 is formed on the second dust removal monomer 370. The third air outlet 3413 is formed on the first dust removal monomer 360 and / or the second dust removal monomer 370.

[0131] Taking Figure 5 the illustrated example as an example, the third air outlet 3413 is formed on the first dust removal monomer 360. Here, by setting the first dust removal monomer 360 and the second dust removal monomer 370, a natural gap 304 can be conveniently formed between the two, and the laser can be emitted from the natural gap 304 to the workpiece to be processed. In addition, the above split design method of the dust removal component can simplify the production difficulty.

[0132] It can be understood that when the dust removal component in the integral structure form is adopted, an opening can be provided at an appropriate position of the dust removal component to facilitate the laser to pass through the opening and be emitted to the workpiece to be processed.

[0133] In other embodiments, the dust removal component may further be provided with more components, such as a third dust removal monomer, etc. The third air outlet 3413 may be formed on the third dust removal monomer.

[0134] In some embodiments, please refer to Figure 5 , the second air duct structure 350 is connected to the dust suction duct 330, and one end of the dust suction duct 330 located in the dust removal area forms a negative pressure port 351.

[0135] Combined with the foregoing, the second air duct structure 350 may include a negative pressure device. By connecting the negative pressure setting to the dust suction duct 330 and at the same time making the end of the dust suction duct 330 close to the air flow area, a negative pressure area can be formed near the air flow area.

[0136] In some embodiments, please refer to Figure 5 , the dust suction duct 330 and the dust removal component are an integrated structure. For example, the dust suction duct 330 can be integrally designed on the aforementioned second dust removal unit 370.

[0137] Combined with the foregoing, when the workpiece to be processed is a strip structure such as a coil, for example, the pole piece 10, a first dust removal area 301 can be formed on the first side of the workpiece to be processed, and a second dust removal area 302 can be formed on the second side of the workpiece to be processed. To achieve dust removal, please refer to Figure 1 , the dust suction duct 330 may include a first pipeline 331 and a second pipeline 332. Among them, the first pipeline 331 is connected to the first dust removal area 301, and the second pipeline 332 is connected to the second dust removal area 302.

[0138] In addition, for the second dust removal area 302, its main purpose is to absorb dust from the lower side of the workpiece to be processed, and a negative pressure environment can be formed in the second dust removal area 302 through a negative pressure device to achieve the absorption of dust.

[0139] Furthermore, in some embodiments, to prevent the dust in the second dust removal area 302 from entering the upper side of the workpiece to be processed, a fourth air curtain can be provided between the loading fixture 100 and the second dust removal area 302. The fourth air curtain can be achieved by introducing a positive air flow, and the formation method of the aforementioned third air curtain can be referred to. In addition, the dust can also be prevented from entering the upper side by setting a dust suction net.

[0140] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present application.

[0141] In the description of the present application, it should be understood that the terms "comprising" and "having" used in the embodiments of the present application and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device that includes a series of steps or units does not necessarily have to be limited to those steps or units clearly listed, but may include other steps or units not clearly listed or inherent to these processes, methods, products or devices.

[0142] Unless otherwise clearly specified and defined, terms such as "installed", "connected", "coupled", "fixed", etc. shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be directly connected, or indirectly connected through an intermediate medium, and it may be the connection inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances. In addition, terms such as "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features.

[0143] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application and are not intended to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A dust removal device (300), characterized in that: include: A dust removal assembly is arranged outside the workpiece to be processed and can enclose a dust removal area with the workpiece to be processed; A dust collection duct (330) is connected to the dust removal area; a first air channel structure (340), the first air channel structure (340) being configured to form an air flow area inside the dust removal area; and a second air passage structure (350), wherein the second air passage structure (350) is configured to form a negative pressure area inside the dust removal area.

2. The dust removal device (300) according to claim 1, characterized in that: The airflow region is formed near the surface of the workpiece to be processed, and the negative pressure region is formed near the airflow region.

3. The dust removal device (300) according to claim 2, characterized in that: The first air channel structure (340) can form an air outlet (341) in an area close to the workpiece to be processed, and the second air channel structure (350) can form a negative pressure port (351) close to the air outlet (341).

4. The dust removal device (300) according to claim 3, characterized in that: The air outlet (341) includes a first air outlet (3411) and a second air outlet (3412) that are arranged opposite to each other, the first air outlet (3411) has an orientation along a first direction, and the second air outlet (3412) has an orientation along a second direction, the gas generated by the first air duct structure (340) can flow out from the first air outlet (3411) and form a first bottom boundary of the negative pressure area, and the gas generated by the first air duct structure (340) can flow out from the second air outlet (3412) and form a second bottom boundary of the negative pressure area.

5. The dust removal device (300) according to claim 4, characterized in that: The air outlet (341) also includes a third air outlet (3413) away from the first air outlet (3411) or the second air outlet (3412), and the third air outlet (3413) has an orientation along a third direction. The gas generated by the first airway structure (340) can flow out from the third air outlet (3413) and form the top boundary of the negative pressure area.

6. The dust removal device (300) according to claim 5, characterized in that: The dust removal assembly is constructed as a hollow structure and has an air flow channel (303), the first air outlet (3411), the second air outlet (3412) and the third air outlet (3413) are all connected to the air flow channel (303), and the gas generated by the first air channel structure (340) can enter the air flow channel (303).

7. The dust removal device (300) according to claim 5, characterized in that: The dust removal assembly is constructed as a solid structure, and the first air duct structure (340) can pass through the dust removal assembly and form the first air outlet (3411), the second air outlet (3412) and the third air outlet (3413).

8. The dust removal device (300) according to claim 5, characterized in that: The dust removal assembly at least includes: a first dust removal unit (360), wherein the first air outlet (3411) is formed on the first dust removal unit (360); And a second dust removal unit (370) is arranged opposite to the first dust removal unit (360), the second air outlet (3412) is formed on the second dust removal unit (370), and the third air outlet (3413) is formed on the first dust removal unit (360) and / or the second dust removal unit (370).

9. The dust removal device (300) according to claim 3, characterized in that: The second air duct structure (350) is in communication with the dust suction duct (330), and one end of the dust suction duct (330) located in the dust removal area forms the negative pressure port (351).

10. The dust removal device (300) according to claim 1, characterized in that: The dust collection duct (330) and the dust removal assembly are an integrated structure.

11. The dust removal device (300) according to claim 1, characterized in that: The workpiece to be processed includes a belt-shaped structure having a first side and a second side, and the dust removal assembly includes: a first dust removal assembly (310), the first dust removal assembly (310) being configured to form a first dust removal area (301) on the first side; and a second dust removal assembly (320), the second dust removal assembly (320) being configured to form a second dust removal area (302) on the second side.

12. The dust removal device (300) according to claim 11, characterized in that: The dust collection duct (330) comprises: a first pipeline (331) communicating with the first dust removal area (301); and a second pipeline (332) communicating with the second dust removal area (302).

13. The dust removal device (300) according to claim 11, characterized in that: The first side is the side to be processed of the workpiece to be processed, and at least the first dust removal area (301) of the first dust removal area (301) and the second dust removal area (302) forms the airflow area and the negative pressure area, and the second dust removal area (302) at least forms the negative pressure area.

14. The dust removal device (300) according to claim 1, characterized in that: The first airway structure (340) includes a positive pressure device.

15. The dust removal device (300) according to claim 1, characterized in that: The second airway structure (350) includes a negative pressure device.

16. A laser cutting production equipment, characterized in that, include: A loading fixture (100) for loading a workpiece to be processed; A laser cutting mechanism (200) for laser cutting the workpiece to be processed; And a dust removal device (300) according to any one of claims 1 to 15, wherein the dust removal device (300) is used to absorb dust during laser cutting.

17. The laser cutting production equipment according to claim 16, characterized in that: The loading fixture (100) is used for loading a workpiece to be processed in a strip-shaped structure, wherein the strip-shaped structure has a first side and a second side. The dust removal assembly in the dust removal device (300) comprises: a first dust removal assembly (310), the first dust removal assembly (310) being configured to form a first dust removal area (301) on the first side; and a second dust removal assembly (320), the second dust removal assembly (320) being configured to form a second dust removal area (302) on the second side.

18. The laser cutting production equipment according to claim 17, characterized in that: The first side is the side to be processed of the workpiece to be processed, and at least the first dust removal area (301) of the first dust removal area (301) and the second dust removal area (302) forms the airflow area and the negative pressure area, and the second dust removal area (302) at least forms the negative pressure area.

19. The laser cutting production equipment according to claim 18, characterized in that: The laser cutting production equipment also includes: A lifting mechanism (400), wherein the first dust removal component (310) is connected to the lifting mechanism (400), and the first dust removal component (310) can be moved closer to or farther away from the loading fixture (100) under the driving of the lifting mechanism (400).

Images