A dust removal cover, a dust removal device and a laser cutting equipment
By designing dust hoods for support components, air guides, and air knives, and employing convective airflow and multi-air-blowing nozzles for dust removal, the problem of dust pollution during laser cutting has been solved, achieving efficient dust removal and stable cutting.
Patent Information
- Application Number
- CN202210324868.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2022-03-30
- Publication Date
- 2026-01-20
- Estimated Expiration
- 2042-03-30
AI Technical Summary
When laser-cutting battery electrodes, dust contamination causes the electrodes to vibrate and defocus, affecting cutting quality and equipment safety. Existing dust removal methods are difficult to solve this problem effectively.
Design a dust removal hood that includes a support, a guide, and an air knife. The convective airflow flows over the cut on the back of the support, and combined with the guide and multiple air outlets, forms a side-blowing and suction dust removal method to effectively remove dust.
It improves dust removal efficiency, reduces electrode vibration, avoids defocusing, ensures cutting quality and equipment safety, and increases production efficiency.
Smart Images
Figure CN114669868B_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the field of battery pole piece manufacturing, in particular to a dust removal cover, a dust removal device and a laser cutting equipment. BACKGROUND
[0002] In the process of battery manufacturing, the manufacturing of the tab is an important process, which is generally formed by laser cutting the battery pole piece. However, a large amount of dust and smoke will be generated during laser cutting, which will easily adhere to the surface of the pole piece and cause internal short circuit of the battery if not cleaned in time. In addition, the accumulation of dust will cause the pole piece to be out of focus at the laser cutting point, resulting in cutting failure and affecting the cutting quality. The dust pollution in the laser cutting process will also cause corrosion of the equipment circuit system, increase the risk of flammability and explosion, and other problems. Therefore, appropriate dust removal measures need to be taken during laser cutting of the pole piece. In the related art, the laser cutting position is sucked to achieve a certain dust removal effect. However, in actual use, if the wind speed is too small, the dust removal effect will be poor, and if the wind speed is too large, the pole piece will be shaken or the cut-out pole piece waste will be sucked away, resulting in pole piece out of focus and causing cutting failure or belt breakage, which affects the production efficiency and cutting quality. SUMMARY
[0003] The present application aims to at least solve one of the technical problems existing in the prior art. To this end, the present application provides a dust removal cover which can effectively solve the problem of pole piece shaking at the cutting point during dust removal, thereby improving the cutting quality.
[0004] The present application also provides a dust removal device having the above-mentioned dust removal cover, and a laser cutting equipment having the dust removal device.
[0005] The dust removal cover according to the first aspect of the present application comprises a support, a flow guide and an air knife. The support has opposite front and back surfaces and is provided with a cutting opening penetrating through the front surface and the back surface of the support. The front surface of the support is used to support the pole piece, and the cutting opening is used to avoid the laser used for cutting the pole piece. The flow guide is arranged on the back surface of the support and has a first dust removal cavity inside. The cutting opening is communicated with the first dust removal cavity. One side of the flow guide has a first exhaust opening communicated with the first dust removal cavity, which is used to exhaust the airflow in the first dust removal cavity. The air knife is provided with an air inlet opposite to the first exhaust opening and a first air outlet. The air inlet is used to communicate the first dust removal cavity with the outside, and the first air outlet can blow air towards the first exhaust opening.
[0006] The dust cover has at least the following beneficial effects: the flow guide is located on the back of the support, and the first exhaust port and the first air blowing port of the air knife are opposite, so that when the dust cover is used on the laser cutting equipment, the first exhaust port is connected to the air source for air suction, and the air knife blows air from the first air blowing port to the first exhaust port, so that a convection air flow passing through the cutting port can be formed in the first dust removal cavity, the air flow passes through the cutting port along the back of the support, thereby carrying away the dust generated during cutting, the pole piece is supported on the front of the support, which can effectively reduce the shaking, and the side blowing and suction mode can effectively improve the dust removal efficiency.
[0007] According to some embodiments of the dust cover, the air knife is further provided with a second air blowing port opposite to the first exhaust port, the second air blowing port corresponds to one side of the cutting port along the conveying direction of the pole piece, and is used for blowing air towards the first exhaust port.
[0008] According to some embodiments of the dust cover, the flow guide is provided with a flow guide fin, the flow guide fin corresponds to one side of the cutting port corresponding to the second air blowing port, one end of the flow guide fin is connected to the inner wall of the flow guide, the other end extends towards the inside of the first dust removal cavity and inclines away from the cutting port, a flow guide channel is defined between the side of the flow guide fin away from the cutting port and the inner wall of the dust cover, and the second air blowing port can blow air towards the flow guide channel.
[0009] According to some embodiments of the dust cover, the second air blowing port includes a plurality of second air outlets, and the plurality of second air outlets are arranged from the proximal end of the support towards the direction away from the support.
[0010] According to some embodiments of the dust cover, the first air blowing port is located on the proximal side of the air knife relative to the support.
[0011] According to some embodiments of the dust cover, the first air blowing port includes a plurality of first air outlets, and the plurality of first air outlets are arranged along the conveying direction of the pole piece.
[0012] According to some embodiments of the dust cover, the support is provided with a first air avoiding hole corresponding to the cutting port, the first air avoiding hole is connected to the cutting port and communicates with the first dust removal cavity.
[0013] According to some embodiments of the dust cover, the flow guide is further provided with a flow guide cavity, the side of the flow guide facing the support is provided with a second air avoiding hole, along the conveying direction of the pole piece, the second air avoiding hole is connected to the flow guide cavity and located downstream of the cutting port, the side of the flow guide opposite to the air knife is provided with a second exhaust port, the second exhaust port is connected to the flow guide cavity, and is used for exhausting the air flow in the flow guide cavity.
[0014] According to some embodiments of the dust cover of the application, the air knife is further provided with a third air outlet, which is communicated with the flow guide cavity and used for blowing air towards the second air outlet.
[0015] According to some embodiments of the dust cover of the application, the dust cover further comprises a pressing piece, which is arranged on one side of the cutting opening along the conveying direction of the pole piece and connected to the front surface of the support piece, and has a gap for the pole piece to pass between the pressing piece and the front surface of the support piece, and the pressing piece is used for abutting against the pole piece in a direction perpendicular to the front surface of the support piece.
[0016] According to some embodiments of the dust cover of the application, the dust cover further comprises a pressing piece, which is arranged on one side of the cutting opening along the conveying direction of the pole piece and connected to the front surface of the support piece, and has a gap for the pole piece to pass between the pressing piece and the front surface of the support piece, and the pressing piece is used for abutting against the pole piece in a direction perpendicular to the front surface of the support piece.
[0017] According to some embodiments of the dust cover of the application, the dust cover further comprises a pressing piece, which is arranged on one side of the cutting opening along the conveying direction of the pole piece and connected to the front surface of the support piece, and has a gap for the pole piece to pass between the pressing piece and the front surface of the support piece, and the pressing piece is used for abutting against the pole piece in a direction perpendicular to the front surface of the support piece.
[0018] According to some embodiments of the dust cover of the application, the dust cover further comprises a pressing piece, which is arranged on one side of the cutting opening along the conveying direction of the pole piece and connected to the front surface of the support piece, and has a gap for the pole piece to pass between the pressing piece and the front surface of the support piece, and the pressing piece is used for abutting against the pole piece in a direction perpendicular to the front surface of the support piece.
[0019] According to some embodiments of the dust cover of the application, the dust cover further comprises a pressing piece, which is arranged on one side of the cutting opening along the conveying direction of the pole piece and connected to the front surface of the support piece, and has a gap for the pole piece to pass between the pressing piece and the front surface of the support piece, and the pressing piece is used for abutting against the pole piece in a direction perpendicular to the front surface of the support piece.
[0020] The laser cutting device according to the third aspect of the present application comprises a laser device and the dust removal device according to any one of the second aspect of the present application, the laser device is arranged on the front surface of the support, and is used for emitting laser to the pole piece at the cutting opening to cut the pole piece at the cutting opening.
[0021] The laser cutting device according to the third aspect of the present application has at least the following beneficial effects: the dust removal device according to the above-mentioned embodiments can effectively reduce the pole piece shaking, avoid the problem of laser defocusing, improve the cutting quality, and is beneficial to improve the production efficiency of the laser cutting device.
[0022] Additional aspects and advantages of the present application will be given in part in the following description, become apparent from the following description, or be understood by practice of the present application. BRIEF DESCRIPTION OF DRAWINGS
[0023] The present application will be further described below in combination with the drawings and embodiments, wherein:
[0024] Figure 1 It is a schematic view of the dust cover according to an embodiment of the present application;
[0025] Figure 2 It is a front view of the dust cover according to an embodiment of the present application; Figure 1
[0026] Figure 3 It is a right view of the dust cover according to an embodiment of the present application; Figure 2
[0027] Figure 4 It is a schematic view of the air knife structure in the dust cover according to an embodiment of the present application;
[0028] Figure 5 It is a perspective view of the internal structure of the air knife according to an embodiment of the present application; Figure 4
[0029] Figure 6 It is a schematic view of the dust cover according to another embodiment of the present application;
[0030] Figure 7 It is a schematic view of the dust removal device according to an embodiment of the present application;
[0031] Figure 8 It is a schematic view of the dust removal device according to another embodiment of the present application;
[0032] Figure 9 It is another angle view of the dust removal device according to an embodiment of the present application; Figure 8
[0033] Figure 10 It is a schematic view of the working state of the dust removal device according to an embodiment of the present application;
[0034] Figure 11 This is a side view of the dust removal mechanism in the dust removal device according to an embodiment of the present invention;
[0035] Figure 12 for Figure 8 A schematic diagram of the waste conveying device in the dust removal device is shown.
[0036] Figure 13 for Figure 12 The diagram shows the structure of the vacuum chamber of the waste conveying device.
[0037] Figure label:
[0038] Dust hood 100, support 101, flow guide 102, air knife 103, front 104, back 105, cutting opening 106, first dust removal chamber 107, first exhaust port 108, first air blowing port 109, adsorption hole 110, second air blowing port 111, flow guide plate 112, flow guide channel 113, first clearance hole 114, flow guide chamber 115, second clearance hole 116, first air passage 117, second air passage 118, third air passage 119, third air blowing port 120, pressure member 121, shielding part 122, electrode plate 123, second exhaust port 124, air inlet 125;
[0039] Dust removal mechanism 200, dust removal pipe 201, connector 202, cover 203, second opening 205, third opening 206, third dust removal chamber 207, protective cover 208, protective net 209;
[0040] Waste conveying device 300, vacuum chamber 301, belt mechanism 302, opening 303, roller 304, belt 305, third exhaust port 306, rib 307, belt dust collector pipe 308. Detailed Implementation
[0041] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.
[0042] In the description of this invention, it should be understood that the orientation descriptions, such as up, down, front, back, left, right, etc., are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention 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 limiting this invention.
[0043] In the description of this invention, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. The use of "first" and "second" in the description is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.
[0044] In the description of this invention, unless otherwise explicitly defined, terms such as "set up," "install," and "connect" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this invention in conjunction with the specific content of the technical solution.
[0045] In the description of this invention, the terms "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the 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.
[0046] Figure 1 This is a schematic diagram of a dust collector hood according to an embodiment of the present invention. Figure 2 for Figure 1 Front view, Figure 3 for Figure 2 The right view, Figure 4 This is a schematic diagram of the air knife structure in a dust collector hood according to an embodiment of the present invention, with reference to... Figures 1 to 4 A first aspect of the present invention provides a dust removal hood, including a support member 101, a guide member 102, and an air knife 103. The support member 101 has a front side 104 and a back side 105 facing each other, and is provided with a cutting opening 106 penetrating the front side 104 and the back side 105. The front side 104 is used to support an electrode sheet, and the cutting opening 106 is used to avoid laser light used for cutting the electrode sheet. The guide member 102 is disposed on the back side 105 of the support member 101, and has a first dust removal chamber 107 within it. The cutting opening 106 communicates with the first dust removal chamber 107, and one side of the guide member 102 has a first exhaust port 108 communicating with the first dust removal chamber 107 for discharging airflow from the first dust removal chamber 107.
[0047] The air knife 103 is provided with an air inlet 125 and a first air blowing port 109 opposite to the first exhaust port 108. The air inlet 125 is used to connect the first dust removal chamber 107 to the outside, and the first air blowing port 109 can blow air toward the first exhaust port 108. Thus, when the dust removal hood 100 of the present invention is used in the laser cutting equipment, when the first exhaust port 108 is connected to the air source for suction, the air knife 103 blows air toward the first exhaust port 108 from the first air blowing port 109, which can form a convective airflow flowing through the cutting opening 106 in the first dust removal chamber 107. The airflow flows along the back side 105 of the support member 101 through the cutting opening 106, thereby carrying away the dust generated during cutting. The electrode is supported on the front side 104 of the support member 101, which can effectively reduce vibration, and the side blowing and suction method can effectively improve the dust removal efficiency.
[0048] refer to Figure 1 and Figure 2 In some embodiments, a channel (not shown) may be provided inside the support member 101 or between the back side 105 of the support member 101 and the guide member 102. Multiple adsorption holes 110 may be arranged on the front side 104 of the support member 101. The adsorption holes 110 are connected to the internal channel, which can penetrate the support member 101 from the side to form a channel opening (not shown). An interface may be connected to the channel opening, and the interface, through an air pipe, is connected to a vacuum source to generate negative pressure within the channel. This allows the electrode sheet supported on the front side 104 of the support member 101 to be adsorbed through the adsorption holes 110, effectively reducing electrode sheet vibration and ensuring cutting quality. The support member 101 can be an independent structural component, connected to the guide member 102 using conventional connection methods, facilitating separate processing of the support member 101 and the guide member 102. Alternatively, the support member 101 and the guide member 102 can be made into an integrated structure, simplifying assembly.
[0049] Figure 5 for Figure 4 The diagram shows a perspective view of the internal structure of the air knife. Figure 6 This is a schematic diagram of the structure of a dust collector hood according to another embodiment of the present invention, with reference to... Figure 1 and Figures 4 to 6 In some embodiments, the air knife 103 is further provided with a second air blowing port 111 opposite to the first exhaust port 108. The second air blowing port 111 corresponds to one side of the cutting opening 106 along the electrode conveying direction and is used to blow air toward the first exhaust port 108. This creates a convective airflow in the first dust removal chamber 107 relative to the side of the cutting opening 106, which can remove dust inside the first dust removal chamber 107 and prevent the airflow from affecting the electrode at the cutting opening 106. For example, the electrode is conveyed from top to bottom (see reference). Figure 10The second air outlet 111 corresponds to the area below the cut opening 106. Air is blown from the opposite side of the first exhaust outlet 108 into the bottom space of the first dust removal chamber 107. This creates an airflow in the space below the cut opening 106 within the first dust removal chamber 107, effectively preventing dust from adhering to the bottom wall of the first dust removal chamber 107 and avoiding direct airflow onto the cut opening 106, which could affect the electrode. This improves dust removal efficiency while reducing electrode vibration. Furthermore, the air velocity of the first air outlet 109 can be appropriately reduced while the air velocity of the second air outlet 111 is increased. This allows the airflow flowing through the cut opening 106 to remove smaller dust particles, preventing significant electrode vibration, while larger dust particles settle downwards and are removed by the airflow below the first dust removal chamber 107, further improving dust removal efficiency and reducing electrode vibration.
[0050] refer to Figure 1 and Figures 4 to 6 In some embodiments, a guide plate 112 is provided inside the guide member 102. The guide plate 112 is located on the side of the cut opening 106 corresponding to the second air blowing port 111. One end of the guide plate 112 is connected to the inner wall of the guide member 102, and the other end extends into the first dust removal chamber 107 and is inclined away from the cut opening 106. A guide channel 113 is defined between the side of the guide plate 112 away from the cut opening 106 and the inner wall of the dust removal hood 100. The second air blowing port 111 can blow air towards the guide channel 113. The guide member 102 can block the airflow in the guide channel 113 on one side of the cut opening 106, thereby playing a guiding role, thereby reducing or avoiding the influence of the airflow flowing through the guide channel 113 on the cut opening 106, and at the same time avoiding the influence of the airflow in the space of the guide member 102 facing the cut opening 106. This can improve the dust removal efficiency while reducing electrode vibration and avoiding defocusing. Therefore, under the obstruction of the guide member 102, the wind speed of the second air outlet 111 can be further increased to improve the dust removal efficiency. In some embodiments, the guide member 102 may also be provided with multiple vent holes, which penetrate both sides of the guide member 102 facing and away from the cutting opening 106. Large dust particles can directly enter the guide channel 113 through the vent holes, thereby improving the dust removal efficiency.
[0051] The second air inlet 111 can be a slit-type structure or a porous structure, for example, see reference. Figures 4 to 6In some embodiments, the second air outlet 111 includes a plurality of second air outlets, which are arranged from the proximal end of the support member 101 toward a direction away from the support member 101. Each second air outlet adopts a circular hole structure to make the air velocity uniform throughout the second air outlet 111. In some embodiments, since the shielding of the cutting opening 106 by the guide member 102 can effectively prevent the airflow in the guide channel 113 from affecting the electrode of the cutting opening 106, the second air outlet corresponding to the guide channel 113 can adopt a larger diameter circular hole, so that the air knife 103 blows a larger amount of air into the guide channel 113, thereby improving the dust removal efficiency.
[0052] refer to Figure 1 and Figures 4 to 6 In some embodiments, the first air inlet 109 is located near the support member 101 on the side of the air knife 103, thereby forming an airflow close to the back surface 105 of the support member 101, which can effectively remove dust generated at the cutting edge 106 in a timely manner. In some embodiments, the first air inlet 109 may adopt a slit-like structure or a porous structure, for example, referring to... Figure 4 and Figure 5 The first air outlet 109 includes multiple first air outlets, which are arranged along the conveying direction of the electrode sheet. Each first air outlet adopts a circular hole structure to make the air velocity uniform at all points of the second air outlet 111.
[0053] refer to Figure 1 and Figure 2 In some embodiments, a first clearance hole 114 is provided on the support member 101 corresponding to the cut opening 106. The first clearance hole 114 is connected to the cut opening 106 and to the first dust removal chamber 107. Thus, the dust generated during cutting is sucked into the first dust removal chamber 107 before it adheres to the support member 101, and the dust is removed in time to prevent dust from accumulating on the support member 101 and affecting the position of the electrode. A shielding part 122 can also be provided at the cut opening 106. The shielding part 122 extends obliquely from the front side 104 of the support member 101 into the first dust removal chamber 107, thereby shielding the electrode at the cut opening 106 and preventing the electrode from being rolled into the first dust removal chamber 107.
[0054] refer to Figure 1 , Figure 2 and Figure 6In some embodiments, the guide member 102 is further provided with a guide cavity 115. A second clearance hole 116 is provided on the side of the guide member 102 facing the support member 101. Along the electrode conveying direction, the second clearance hole 116 connects to the guide cavity 115 and is located downstream of the cutting opening 106. A second exhaust port 124 is provided on the side of the guide member 102 opposite to the air knife 103. The second exhaust port 124 connects to the guide cavity 115 and is used to discharge the airflow within the guide cavity 115. Thus, dust that does not enter the first dust removal chamber 107 in time, or dust still adhering to the electrode after cutting, can enter the guide cavity 115 through the second clearance hole 116, thereby further removing the dust. In some embodiments, the air knife 103 is further provided with a third air blowing port 120. The third air blowing port 120 connects to the guide cavity 115 and is used to blow air toward the second exhaust port 124, thereby forming convection within the guide cavity 115 and improving dust removal efficiency.
[0055] In the dust collector hood of the above embodiment, the air knife 103 can adopt an integral structure, formed by machining an air passage inside a single structural component and machining an air blowing port connecting the air passage on one side. The air passage runs through the outer surface of the air knife 103 to form an air passage opening for connecting an air pump, thereby enabling air to be blown from each air blowing port, which can eliminate the need for the use and assembly of multiple air knives 103. Specifically, refer to Figure 4 and Figure 5 The air knife 103 has a first air passage 117 on the side corresponding to the support member 101, a second air passage 118 on the lower part of the first dust removal chamber 107, and a third air passage 119 on the side corresponding to the guide chamber 115. On the side of the air knife 103 facing the guide member 102, a first air outlet 109 is provided corresponding to the first air passage 117, a second air outlet 111 is provided corresponding to the second air passage 118, and a third air outlet 120 is provided corresponding to the third air passage 119. Figure 5 The first air passage 117, the second air passage 118, and the third air passage 119 are shown by dashed lines. The first air passage 117, the second air passage 118, and the third air passage 119 pass through the edge of the air knife 103 to form air passage openings. By simply connecting the air knife 103 to the guide member 102 and connecting each air passage opening to the air pump, air can be blown from each air blowing port to the corresponding dust removal chamber. Compared with the scheme of using multiple air knives 103 connected separately, the structure is more compact and the assembly is simpler and more efficient.
[0056] refer to Figure 1 and Figure 2In some embodiments, a pressure member 121 is also included. The pressure member 121 is disposed on one side of the cutting opening 106 along the conveying direction of the electrode and connected to the front surface 104 of the support member 101. There is a gap between the pressure member 121 and the front surface 104 of the support member 101 for the electrode to pass through. The pressure member 121 is used to hold the electrode in a direction perpendicular to the front surface 104 of the support member 101, which can further reduce the influence of airflow on the electrode and thus effectively avoid the problem of the electrode shaking and defocusing.
[0057] As can be seen from the above, when the dust cover 100 of the present invention is applied to laser cutting electrode sheets, it can form convection and effectively reduce electrode sheet vibration. Therefore, compared with conventional dust removal methods, it can improve dust removal efficiency and solve the problem of electrode sheet vibration and defocusing, thereby improving cutting quality.
[0058] Figure 7 This is a schematic diagram of a dust removal device according to an embodiment of the present invention. (Refer to...) Figure 7 A second aspect of the present invention provides a dust removal device, including a dust removal mechanism 200 and a dust removal hood 100 as described in any of the first aspects above. The dust removal mechanism 200 includes a dust removal pipe 201 and a connector 202. The dust removal pipe 201 has a dust removal channel inside. One end of the connector 202 is connected to the dust removal pipe 201, and the other end is connected to the side of the dust removal hood 100 where a first exhaust port 108 is provided. The connector 202 has a second dust removal chamber inside, which communicates with the first dust removal chamber 10 of the dust removal hood 100. 7 and the dust removal channel inside the dust removal pipe 201, thereby, the dust removal pipe 201 draws air through the air source, and works in conjunction with the air knife 103 of the dust removal hood 100 to form a convective airflow flowing through the cutting opening 106 in the first dust removal chamber 107. The airflow flows along the back side 105 of the support member 101 through the cutting opening 106, thereby carrying away the dust generated during cutting. The side blowing and suction method can effectively improve the dust removal efficiency, and the electrode is supported on the front side 104 of the support member 101, which can effectively reduce vibration and avoid defocusing, thereby ensuring the cutting quality.
[0059] Figure 8 This is a schematic diagram of the structure of a dust removal device according to another embodiment of the present invention. Figure 9 for Figure 8 Another perspective diagram, Figure 10 This is a schematic diagram of the working state of a dust removal device according to an embodiment of the present invention, with reference to... Figures 8 to 10In some embodiments, the dust removal device further includes a cover 203, which is disposed on the front side 104 of the support member 101 and has a gap between it and the support member 101 to allow the electrode sheet 123 to be cut to pass through. The interior of the cover 203 has a third dust removal chamber 207. The cover 203 has a first opening on the side facing the support member 101, a second opening 205 on the side opposite to the first opening, and a third opening 206 on the side facing the connector 202. The first opening, the second opening 205, and the third opening 206 are all connected to the third dust removal chamber 207, and the third opening 206 is connected to the second dust removal chamber. Thus, after the dust removal channel is connected to the air source, it can simultaneously draw air from the first dust removal chamber 107 and the third dust removal chamber 207. Therefore, the third dust removal chamber 207 can remove dust from the electrode sheet 123 and the dust generated during cutting on the front side 104 of the support member 101. The cover 203 and the dust collector 100 enclose each other on both sides of the electrode 123 to form a semi-enclosed dust collection chamber, which can effectively prevent dust from drifting outward, thereby effectively reducing the impact of dust on the working environment and improving dust collection efficiency.
[0060] Figure 11 This is a side view of the dust removal mechanism in the dust removal device according to an embodiment of the present invention, with reference to... Figure 11 In some embodiments, a protective cover 208 is provided at the opening on the side of the connecting member 202 of the dust removal mechanism 200 facing the dust removal hood 100 and the hood body 203. The protective cover 208 is connected to the connecting member 202 and covers the opening to block debris, so as to prevent debris from entering the dust removal channel and affecting the normal operation of the air source device. A protective net 209 is provided on the protective cover 208. The protective net 209 can be a conventional mesh structure or a grid structure, which can ensure ventilation while effectively blocking debris.
[0061] Figure 12 for Figure 8 The diagram shown illustrates the structure of the waste conveying device in the dust removal system. Figure 13 for Figure 12 The schematic diagram of the vacuum chamber of the waste conveying device is shown below. (Refer to...) Figures 8 to 13 In some embodiments, the dust removal device further includes a waste guiding device 300. Along the electrode conveying direction, the waste guiding device 300 is located downstream of the cutting opening 106 and on the front side 104 of the support member 101, for adsorbing waste generated during laser cutting of the electrode. Specifically, the waste guiding device 300 includes a vacuum chamber 301 and a belt mechanism 302. The vacuum chamber 301 has an internal cavity, and an opening 303 communicating with the cavity is provided on the side of the vacuum chamber 301 facing the support member 101. The belt mechanism 302 includes a pair of rollers 304 and a belt 305 wound around the rollers 304. The belt 305 is parallel to the support member 101 and covers the opening 303. (Refer to...) Figure 13A support structure can also be provided at the opening 303 of the vacuum chamber 301. The support structure may include multiple ribs 307 spanning the opening 303. The multiple ribs 307 are arranged at intervals along the electrode conveying direction to support the belt 305 and improve the stability of the belt 305. The belt 305 has multiple through holes. The vacuum chamber 301 is provided with a third exhaust port 306 communicating with the cavity. The third exhaust port 306 is used to connect to a vacuum source. By connecting the vacuum source to the third exhaust port 306 through the belt dust removal pipe 308, air can be drawn into the cavity to form a negative pressure to adsorb waste through the through holes, thereby peeling the waste off the cut electrode.
[0062] A third aspect of the present invention provides a laser cutting device (not shown), including a laser device and a dust removal device according to any of the second aspects described above. The laser device is disposed on the front side 104 of the support member 101 and is used to emit a laser beam toward a cutting opening 106 to cut the electrode sheet located at the cutting opening 106. As can be seen from the above, the dust removal device of the above embodiment can effectively reduce electrode sheet vibration, avoid laser defocusing, and improve cutting quality. Therefore, the laser cutting device with this dust removal device can perform efficient dust removal and improve cutting quality, thereby improving the production efficiency of the laser cutting equipment.
[0063] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments, and various changes can be made within the scope of knowledge possessed by those skilled in the art without departing from the spirit of the present invention. Furthermore, the embodiments of the present invention and the features thereof can be combined with each other unless otherwise specified.
Claims
1. A dust collector hood, characterized in that, include: A support member has a front and a back side facing each other, and is provided with a cut through the front and back sides of the support member. The front side of the support member is used to support the electrode sheet, and the cut is used to avoid the laser used to cut the electrode sheet. A flow guide is disposed on the back of the support member. The flow guide has a first dust removal chamber inside. The cutting opening is connected to the first dust removal chamber. One side of the flow guide has a first exhaust port connected to the first dust removal chamber, which is used to connect to an air source to draw in air and discharge the airflow in the first dust removal chamber. The air knife is provided with an air inlet and a first air blowing port opposite to the first exhaust port. The air inlet is used to connect the first dust removal chamber to the outside. The first air blowing port can blow air toward the first exhaust port. The first air blowing port is located on the side of the air knife relative to the support member, thereby forming an airflow close to the back of the support member. The first air blowing port includes a plurality of first air outlet holes, which are arranged along the conveying direction of the electrode sheet.
2. The dust collector hood according to claim 1, characterized in that, The air knife is also provided with a second air blowing port opposite to the first exhaust port. The second air blowing port corresponds to the side of the cutting opening along the conveying direction of the electrode sheet and is used to blow air toward the first exhaust port.
3. The dust collector hood according to claim 2, characterized in that, The flow guide is provided with a flow guide plate, which is located on the side of the cut that corresponds to the second air blowing port. One end of the flow guide plate is connected to the inner wall of the flow guide, and the other end extends into the first dust removal chamber and is inclined away from the cut. A flow guide channel is defined between the side of the flow guide plate away from the cut and the inner wall of the dust removal hood, and the second air blowing port can blow air toward the flow guide channel.
4. The dust collector hood according to claim 3, characterized in that, The second air outlet includes a plurality of second air outlets, which are arranged from the proximal end of the support member toward a direction away from the support member.
5. The dust collector hood according to claim 1, characterized in that, The support member has a first clearance hole corresponding to the cut opening. The first clearance hole is connected to the cut opening and is also connected to the first dust removal chamber.
6. The dust collector hood according to claim 1, characterized in that, The guide member is further provided with a guide cavity. A second clearance hole is provided on the side of the guide member facing the support member. Along the conveying direction of the electrode sheet, the second clearance hole is connected to the guide cavity and located downstream of the cutting opening. A second exhaust port is provided on the side of the guide member opposite to the air knife. The second exhaust port is connected to the guide cavity and is used to discharge the airflow in the guide cavity.
7. The dust collector hood according to claim 6, characterized in that, The air knife is also provided with a third air blowing port, which is connected to the flow guide cavity and is used to blow air toward the second exhaust port.
8. The dust collector hood according to any one of claims 1 to 7, characterized in that, It also includes a pressing member, which is disposed on one side of the cut and connected to the front side of the support member along the conveying direction of the electrode sheet. There is a gap between the pressing member and the front side of the support member for the electrode sheet to pass through. The pressing member is used to hold the electrode sheet in a direction perpendicular to the front side of the support member.
9. A dust removal device, characterized in that, include: Dust hood as described in any one of claims 1 to 8; as well as, A dust removal mechanism includes a dust removal pipe and a connector. The dust removal pipe has a dust removal channel inside. One end of the connector is connected to the dust removal pipe, and the other end is connected to the side of the dust removal hood where the first exhaust port is provided. The connector has a second dust removal chamber inside, and the second dust removal chamber is connected to the dust removal hood and the dust removal channel.
10. The dust removal device according to claim 9, characterized in that, It also includes a cover, which is disposed on the front of the support member and has a gap between it and the support member. The cover has a third dust removal chamber inside. The cover has a first opening on the side facing the support member, a second opening on the side opposite to the first opening, and a third opening on the side facing the connector. The first opening, the second opening and the third opening are all connected to the third dust removal chamber, and the third opening is connected to the second dust removal chamber.
11. The dust removal device according to claim 9, characterized in that, It also includes a waste guiding device, which is located downstream of the cutting opening and on one side of the front of the support member along the conveying direction of the electrode sheet, and is used to adsorb the waste generated by laser cutting of the electrode sheet.
12. A laser cutting device, characterized in that, The device includes a laser device and a dust removal device as described in any one of claims 9 to 11, wherein the laser device is disposed on the front side of the support member and is used to emit a laser at the cutting opening to cut the electrode at the cutting opening.