Dust removal device and laser cutting equipment

Abstract

The application relates to a dust removal device and a laser cutting equipment. The dust removal device is applied to the laser cutting equipment and comprises a dust suction cover and a dust suction pipeline connected with the dust suction cover. The dust suction cover comprises an air inlet end and an air outlet end. The air inlet end is connected with a cutting cavity of the laser cutting equipment, and the air outlet end is connected with the dust suction pipeline. A flow guide component is arranged in the dust suction cover. The flow guide component is used for guiding the airflow sucked from the cutting cavity to flow along different preset paths. According to the scheme, the flow guide component arranged in the dust suction cover actively guides and redistributes the negative pressure airflow, effectively inhibits the shaking of the foil at the laser cutting point, avoids the cutting defects caused by defocusing, and significantly improves the stability and consistency of the laser cutting quality.

Description

Technical Field

[0001] This application relates to the field of battery manufacturing equipment, and in particular to dust removal devices and laser cutting equipment. Background Technology

[0002] In the electrode production process, laser cutting equipment is often used to achieve high-precision cutting of electrodes. However, in related technologies, the negative pressure airflow generated by the dust collection device equipped in the laser cutting equipment during operation can interfere with the airflow stability inside the cutting cavity, causing the foil at the laser cutting point to vibrate. This results in the laser focus deviating from the predetermined position, causing defocusing. This phenomenon can easily lead to incomplete cutting or poor cutting accuracy, resulting in low cutting stability. Utility Model Content

[0003] To solve or partially solve the problems existing in the related technologies, this application provides a dust removal device and a laser cutting equipment. By using a guide component set in the dust collection hood, the negative pressure airflow is actively guided and redistributed, which effectively suppresses the shaking of the foil at the laser cutting point, thereby avoiding cutting defects caused by defocusing and significantly improving the stability and consistency of laser cutting quality.

[0004] The first aspect of this application provides a dust removal device for use in laser cutting equipment, comprising: A dust hood and a dust suction pipe connected to the dust hood; The dust collection hood includes an air inlet and an air outlet. The air inlet is connected to the cutting cavity of the laser cutting equipment, and the air outlet is connected to the dust collection pipe. The dust collection hood is provided with a flow guiding component, which is used to guide the negative pressure airflow drawn in from the cutting cavity to flow along different preset paths.

[0005] In one embodiment, the flow guiding component is disposed corresponding to the position of the inner electrode plate in the cutting cavity, and the flow guiding component is used to guide the negative pressure airflow drawn in by the dust suction hood from the cutting cavity to flow to the air outlet end on both sides along the thickness direction of the flow guiding component.

[0006] In one embodiment, the cross-sectional area of ​​the dust hood gradually decreases from the air inlet to the air outlet. The air guide component extends from the air inlet to the air outlet.

[0007] In one embodiment, the airflow guiding component includes a block-shaped main body, which is fixed to the inner wall of the dust hood along one side perpendicular to the thickness direction of the block, and has an airflow guiding gap between the other side and the opposite inner wall of the dust hood.

[0008] In one embodiment, the flow guiding component includes a first conical end near the cutting cavity. The first conical end includes two first inclined surfaces arranged back to back. The two first inclined surfaces correspond to a first space and a second space of the cutting cavity, respectively, and are used to guide the negative pressure airflow drawn into the first space and the second space to be deflected to both sides in the direction of the thickness of the main body.

[0009] In one embodiment, the airflow guiding component includes a second conical end near the dust extraction pipe, the second conical end including two back-to-back second inclined surfaces, the two second inclined surfaces being used to guide the negative pressure airflow on both sides of the body thickness direction to converge toward the air outlet.

[0010] In one embodiment, the first conical end and the second conical end are connected by a transition section, which is parallel to the axis of the dust hood.

[0011] A second aspect of this application provides a laser cutting device, comprising: Cutting cavity; and The dust removal device described in the first aspect above is connected to the cutting cavity.

[0012] In one embodiment, the cutting cavity is provided with an electrode inlet on one side, through which the target cutting portion of the electrode extends into the cutting cavity, and a dust removal port is provided on the other side of the cutting cavity, with the air inlet of the dust collection hood sealed to the dust removal port.

[0013] In one embodiment, a first air inlet communicating with the cutting cavity is provided on the electrode inlet side, and a wind baffle is provided on the first air inlet near the electrode inlet; the cutting cavity has a second air inlet communicating with the cutting cavity on the cavity wall perpendicular to the electrode plane.

[0014] The technical solution provided in this application may include the following beneficial effects: This application provides a dust removal device, including a dust collection hood and a dust collection pipe connected to the dust collection hood; wherein the dust collection hood includes an air inlet and an air outlet, the air inlet being connected to the cutting cavity of the laser cutting equipment, and the air outlet being connected to the dust collection pipe; the dust collection hood is provided with a flow guiding component, which is used to guide the negative pressure airflow drawn from the cutting cavity to flow along different preset paths. Therefore, by using the flow guiding component in the dust collection hood to actively guide and redistribute the negative pressure airflow, the vibration of the foil at the laser cutting point is effectively suppressed, thereby avoiding cutting defects caused by defocusing and significantly improving the stability and consistency of laser cutting quality.

[0015] Furthermore, the airflow guiding component of the dust removal device provided in this application includes a block-shaped main body. The main body is fixed to the inner wall of the dust collection hood along one side perpendicular to the thickness direction of the block, and there is an airflow guiding gap between the other side and the opposite inner wall of the dust collection hood. Since the airflow guiding gap is a narrow space, the negative pressure airflow of the cutting cavity will flow rapidly to the air outlet of the dust collection hood when it passes through the airflow guiding gap, which can more quickly discharge the dust generated during the cutting process.

[0016] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and do not limit this application. Attached Figure Description

[0017] The above and other objects, features and advantages of this application will become more apparent from the more detailed description of exemplary embodiments thereof in conjunction with the accompanying drawings, wherein the same reference numerals generally represent the same components in the exemplary embodiments thereof.

[0018] Figure 1 This is a schematic diagram illustrating the cooperation between the dust removal device and the laser cutting equipment in an embodiment of this application; Figure 2 This is a cross-sectional view of the dust removal device shown in the embodiments of this application.

[0019] Reference numerals: 100, dust removal device; 110, dust suction hood; 1101, air inlet; 1102, air outlet; 120, dust suction pipe; 130, flow guiding component; 131, first conical end; 132, second conical end; 133, transition section; 200, laser cutting equipment; 210, cutting cavity; 211, first air inlet; 212, second air inlet; 213, electrode inlet; 214, windbreak; 300, laser emitter; 310, laser beam; 400, electrode; 410, foil. Detailed Implementation

[0020] Preferred embodiments of the present application will now be described in more detail with reference to the accompanying drawings. While preferred embodiments of the present application are shown in the drawings, it should be understood that the present application may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided to make the present application more thorough and complete, and to fully convey the scope of the present application to those skilled in the art.

[0021] The terminology used in this application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The singular forms “a,” “the,” and “the” used in this application and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the term “and / or” as used herein refers to and includes any or all possible combinations of one or more of the associated listed items.

[0022] It should be understood that although the terms "first," "second," "third," etc., may be used in this application to describe various information, this information should not be limited to these terms. These terms are only used to distinguish information of the same type from one another. For example, without departing from the scope of this application, first information may also be referred to as second information, and similarly, second information may also be referred to as first information. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0023] In the description of this application, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application 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, and therefore should not be construed as a limitation of this application.

[0024] Unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0025] In related technologies, the negative pressure airflow generated by the dust collection device in laser cutting equipment during operation can interfere with the airflow stability within the cutting cavity, causing the foil material at the laser cutting point to vibrate. This results in the laser focus deviating from the predetermined position, causing defocusing. This phenomenon easily leads to incomplete cutting or poor cutting accuracy, resulting in low cutting stability. To address the above problems, this application provides a dust collection device and laser cutting equipment. By using a guide component installed inside the dust collection hood, the negative pressure airflow is actively guided and redistributed, effectively suppressing the vibration of the foil material at the laser cutting point. This avoids cutting defects caused by defocusing and significantly improves the stability and consistency of laser cutting quality.

[0026] The technical solutions of the embodiments of this application are described in detail below with reference to the accompanying drawings.

[0027] See Figure 1This application provides a dust removal device 100, applied to a laser cutting equipment 200. The dust removal device 100 includes a dust collection hood 110 and a dust collection pipe 120 connected to the dust collection hood 110. The dust collection hood 110 includes an air inlet 1101 and an air outlet 1102. The air inlet 1101 is connected to the cutting cavity 210 of the laser cutting equipment 200, and the air outlet 1102 is connected to the dust collection pipe 120. A flow guiding component 130 is provided inside the dust collection hood 110. The flow guiding component 130 is used to guide the negative pressure airflow drawn from the cutting cavity 210 to flow along different preset paths.

[0028] In this application, the flow guiding component 130 guides the negative pressure airflow drawn in by the dust suction hood 110 from the cutting cavity 210 to the air outlet 1102 along different preset paths. By actively guiding and redistributing the negative pressure airflow through the flow guiding component set in the dust suction hood, the vibration of the foil at the laser cutting point is effectively suppressed, thereby avoiding cutting defects caused by defocusing and significantly improving the stability and consistency of laser cutting quality.

[0029] In some embodiments, the flow guide 130 is positioned corresponding to the location of the electrode 400 inside the cutting cavity 210. The flow guide 130 is used to guide the negative pressure airflow drawn in by the dust hood 110 from the cutting cavity 210 to flow to the air outlet 1102 on both sides along the thickness direction of the flow guide 130. During the cutting process of electrode 400, electrode 400 is located in the middle of cutting cavity 210. Cutting cavity 210 is divided into a first space and a second space by foil 410. The air inlet 1101 of dust hood 110 is connected to the first space and the second space. The flow guide 130 is set at the position between the first space and the second space, that is, the flow guide 130 is located at the position of foil 410. The flow guide 130 is used to guide the negative pressure airflow drawn from the first space and the second space to flow on both sides along the thickness direction of the flow guide 130, so that the negative pressure airflow velocity in the middle area of ​​cutting cavity 210 and dust hood 110 is low, and the negative pressure airflow velocity in the side areas is high, thereby suppressing the foil from shaking due to the force of airflow.

[0030] In some specific embodiments, the flow guiding component 130 includes a block-shaped main body. The main body includes a first conical end 131 near the cutting cavity 210. The first conical end 131 includes two back-to-back first inclined surfaces. The two first inclined surfaces correspond to the first space and the second space on both sides of the foil 410 in the cutting cavity 210, respectively, and are used to guide the airflow drawn into the first space and the second space to be deflected to both sides in the thickness direction of the main body. In this way, the airflow drawn into the cutting cavity 210 deflects away from the main body after contacting the first inclined surfaces, which is used to quickly divert the dust-laden negative pressure airflow.

[0031] In some embodiments, the airflow guiding component 130 includes a second tapered end 132 near the suction duct 120. The second tapered end 132 includes two back-to-back second inclined surfaces, which guide the negative pressure airflow from both sides of the main body thickness direction toward the outlet end 1102. Specifically, the second inclined surfaces may adopt an inclination angle symmetrical or asymmetrical with the first inclined surface, used to guide the negative pressure airflow toward the direction closer to the main body or the outlet end 1102, converging the dust-laden negative pressure airflow toward the outlet end 1102. In some specific embodiments, the angle formed between the inclination directions of the first and second inclined surfaces and the centerline of the suction hood 110 can be from 5° to 30°, but is not limited to this.

[0032] In this application, due to the design of the first conical end 131 and the second conical end 132, the negative pressure airflow velocity in the middle region of the air inlet 1101 of the dust hood 110 is suppressed, while the airflow velocity on both sides of the main body increases, forming a distribution pattern of low wind speed in the middle and high wind speed on both sides. This velocity distribution can avoid the foil material shaking at the laser cutting point caused by the disturbance of negative pressure airflow, which would cause the foil material to deviate from the laser focal plane and thus cause defocusing, thereby avoiding the discontinuous cutting phenomenon caused by defocusing.

[0033] In some embodiments, the first conical end 131 and the second conical end 132 are connected by a transition section 133, which is parallel to the axis of the dust hood 110. The transition section 133 is a region on the airflow surface that remains parallel to the centerline of the main body. Specifically, it can adopt a planar or slightly arcuate surface structure. The design of the transition section 133 being parallel to the centerline of the main body can maintain a stable airflow direction in the direction of negative pressure airflow transmission, so that the negative pressure airflow in this region keeps flowing in a straight line and reduces local velocity differences.

[0034] In some embodiments, the cross-sectional area of ​​the dust hood 110 gradually decreases from the air inlet 1101 to the air outlet 1102. Specifically, the dust hood 110 can adopt a conical structure or a tapered structure. More specifically, the dust hood 110 is formed by four side walls. The two side walls of the dust hood 110 in the thickness direction of the guide component 130 are inclined. The cross-sectional area of ​​the dust hood 110 gradually decreases from the air inlet 1101 to the air outlet 1102. The two side walls of the dust hood 110 in the width direction of the guide component 130 are parallel to each other.

[0035] As the cross-sectional area of ​​the dust hood 110 gradually decreases from the air inlet 1101 to the air outlet 1102, the negative pressure airflow is accelerated when it flows through the dust hood 110, thereby enhancing the dust suction capacity. The guide component 130 extends from the air inlet 1101 to the air outlet 1102 to separate the negative pressure airflow from the cutting cavity 210, preventing the two airflows from mixing and generating turbulence inside the dust hood 110. Consequently, the wind speed in the middle area inside the dust hood 110 and the cutting cavity 210 decreases, while the wind speed in the side areas increases. This suppresses the wind pressure disturbance near the laser cutting point inside the cutting cavity 210, thereby preventing the foil at the laser cutting point from shaking due to negative pressure airflow disturbance, which would cause the foil to deviate from the laser focal plane and thus produce defocusing.

[0036] In some embodiments, the width of the main body is less than the distance between the two parallel sidewalls of the dust hood 110. One side 135 of the main body along the width direction is fixed to one of the parallel sidewalls of the dust hood 110, and there is an air guide gap 134 between the other side 136 of the main body along the width direction and the other parallel sidewall of the dust hood 110. Because the air guide gap 134 is a relatively narrow space, the negative pressure airflow of the cutting cavity 210 will flow rapidly when passing through the air guide gap 134, which can more effectively and quickly discharge the dust generated during the cutting process.

[0037] The dust removal device 100 of this application has been described above. Correspondingly, this application also provides a laser cutting device 200, including a cutting cavity 210 and the dust removal device 100 as described in the above embodiment, wherein the dust removal device 100 is connected to the cutting cavity 210.

[0038] See Figure 1 and Figure 2 The laser cutting equipment 200 provided in this application has a dust removal device 100 whose airflow guiding component 130 guides the negative pressure airflow drawn in by the dust suction hood 110 from the cutting cavity 210 to the air outlet 1102 along different preset paths. This suppresses the shaking of the foil material at the laser cutting point in the cutting cavity 210 caused by unstable airflow direction, thereby avoiding problems such as incomplete cutting, uneven cutting edges, and poor cutting accuracy caused by defocusing, thus improving the cutting stability of the laser cutting equipment.

[0039] In some embodiments, the cutting cavity 210 has an electrode inlet 213 on one side, through which the target cutting portion of the electrode 400 extends into the cutting cavity 210. The other side of the cutting cavity 210 has a dust removal port, and the air inlet end 1101 of the dust extraction hood 110 is sealed to the dust removal port. A first air inlet 211 communicating with the cutting cavity 210 is also provided on one side of the electrode inlet 213, and a baffle 214 is provided near the electrode inlet 213 in the first air inlet 211. A second air inlet 212 communicating with the cutting cavity 210 is provided on the cavity wall perpendicular to the plane of the electrode 400.

[0040] The first air inlet 211 is an airflow inlet located on one side of the cutting cavity 210. This inlet can be rectangular, circular, or other shaped or constructed openings. Its function is to guide external airflow into the cutting cavity 210 under negative pressure. The baffle 214 is a structure located between the air inlet and the electrode 400. It can be a baffle plate, guide plate, or baffle block. The baffle 214 is installed in the first air inlet 211 near the electrode inlet 213. When airflow enters the cutting cavity 210 from the first air inlet 211, the baffle 214 guides the airflow to an area away from the surface of the electrode 400. Therefore, the foil surface is not directly affected by the airflow, thus suppressing foil jitter at the laser cutting point caused by airflow disturbance during the cutting process, preventing the foil from deviating from the laser focal plane and causing defocusing.

[0041] In some embodiments, the cutting cavity 210 has a second air inlet 212 on its cavity wall perpendicular to the plane of the electrode 400, which communicates with the cutting cavity 210. The second air inlet 212 can be an airflow inlet located on both sides of the cutting cavity 210 and communicating with the internal space of the cutting cavity 210, used to supplement airflow to balance the pressure distribution inside the cutting cavity 210. In some embodiments, the laser beam 310 emitted by the laser emitter 300 of the laser cutting equipment can be directed to the foil 410 to be cut inside the cutting cavity 210 via one of the second air inlets 212. The laser cutting equipment of this application can effectively absorb the dust generated during the laser cutting process, preventing dust from accumulating in the cutting cavity 210. Simultaneously, the airflow guiding component 130 separates the airflow path, suppressing turbulence in the cutting area and inhibiting the shaking of the foil material caused by wind pressure fluctuations, thereby improving cutting accuracy. The various embodiments of this application have been described above. The above description is exemplary and not exhaustive, and is not limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is chosen to best explain the principles, practical applications, or improvements to the technology in the market, or to enable other those skilled in the art to understand the embodiments disclosed herein.

Claims

1. A dust removal device, applied to laser cutting equipment, characterized in that, include: A dust hood and a dust suction pipe connected to the dust hood; The dust collection hood includes an air inlet and an air outlet. The air inlet is connected to the cutting cavity of the laser cutting equipment, and the air outlet is connected to the dust collection pipe. The dust collection hood is equipped with a flow guiding component, which is used to guide the negative pressure airflow drawn in from the cutting cavity to flow along different preset paths.

2. The dust removal device according to claim 1, characterized in that: The flow guiding component is positioned corresponding to the location of the inner electrode plate in the cutting cavity. The flow guiding component is used to guide the negative pressure airflow drawn in by the dust hood from the cutting cavity to flow to the air outlet end along both sides of the thickness direction of the flow guiding component.

3. The dust removal device according to claim 1, characterized in that: The cross-sectional area of ​​the dust collection hood gradually decreases from the air inlet to the air outlet. The air guide component extends from the air inlet to the air outlet.

4. The dust removal device according to claim 1, characterized in that: The airflow guiding component includes a block-shaped main body, which is fixed to the inner wall of the dust collection hood along one side perpendicular to the thickness direction of the block, and has an airflow guiding gap between the other side and the opposite inner wall of the dust collection hood.

5. The dust removal device according to claim 4, characterized in that: The flow guiding component includes a first conical end near the cutting cavity. The first conical end includes two first inclined surfaces arranged back to back. The two first inclined surfaces correspond to the first space and the second space of the cutting cavity, respectively, and are used to guide the negative pressure airflow drawn into the first space and the second space to be deflected to both sides in the direction of the thickness of the main body.

6. The dust removal device according to claim 5, characterized in that: The airflow guiding component includes a second conical end near the dust extraction pipe. The second conical end includes two back-to-back second inclined surfaces, which are used to guide the negative pressure airflow on both sides of the body thickness direction to converge toward the air outlet.

7. The dust removal device according to claim 6, characterized in that: The first conical end and the second conical end are connected by a transition section, which is parallel to the axis of the dust hood.

8. A laser cutting device, characterized in that, include: Cutting cavity; as well as The dust removal device according to any one of claims 1-7, wherein the dust removal device is connected to the cutting cavity.

9. The laser cutting equipment according to claim 8, characterized in that: One side of the cutting cavity is provided with an electrode inlet, which allows the target cutting part of the electrode to extend into the cutting cavity. The other side of the cutting cavity is provided with a dust removal port, and the air inlet of the dust collection hood is sealed to the dust removal port.

10. The laser cutting equipment according to claim 9, characterized in that: The electrode inlet side is also provided with a first air inlet that communicates with the cutting cavity, and the first air inlet is provided with a wind baffle near the electrode inlet; the cutting cavity is provided with a second air inlet that communicates with the cutting cavity on the cavity wall perpendicular to the electrode plane.

Images