CN109277698B - Flow guide type dust hood, dust removal device and laser cutting device - Google Patents

Flow guide type dust hood, dust removal device and laser cutting device Download PDF

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Publication number
CN109277698B
CN109277698B CN201811350089.9A CN201811350089A CN109277698B CN 109277698 B CN109277698 B CN 109277698B CN 201811350089 A CN201811350089 A CN 201811350089A CN 109277698 B CN109277698 B CN 109277698B
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Prior art keywords
air
dust
air inlet
cavity
dust removing
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CN109277698A (en
Inventor
赵盛宇
张松岭
王凯杰
管莉娜
吴磊
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Hymson Laser Technology Group Co Ltd
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Hymson Laser Technology Group Co Ltd
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00Working by laser beam, e.g. welding, cutting or boring
    • B23K26/16Removal of by-products, e.g. particles or vapours produced during treatment of a workpiece
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00Working by laser beam, e.g. welding, cutting or boring
    • B23K26/36Removing material
    • B23K26/38Removing material by boring or cutting

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Plasma & Fusion (AREA)
  • Mechanical Engineering (AREA)
  • Laser Beam Processing (AREA)
  • Prevention Of Fouling (AREA)

Abstract

The invention relates to the technical field of dust removing equipment, and provides a flow-guiding dust removing cover, a dust removing device and a laser cutting device. The dust removing device with the dust removing cover and the laser cutting device have the same beneficial effects.

Description

Flow guide type dust hood, dust removal device and laser cutting device
Technical Field
The invention relates to the technical field of dust removing equipment, in particular to a diversion type dust hood, a dust removing device and a laser cutting device.
Background
A great deal of dust and smoke are generated in the laser cutting production process, and if the dust and smoke cannot be cleaned effectively, a plurality of problems can be caused, for example: firstly, the retained dust is easy to adhere to the pole piece, and the quality of the lithium battery is affected; secondly, dust easily corrodes a device circuit system, so that the device circuit system is short-circuited, and the normal operation of the device is influenced; thirdly, dust can harm the health of users; fourth, dust belongs to inflammable and explosive articles, and if the dust cannot be effectively removed, potential safety hazards can be brought. Therefore, it is necessary to provide a dust removing device on the laser cutting device so as to remove dust while cutting with laser. Although the dust collector of the prior art achieves the purpose of dust collection, the dust collector produces larger dust collection wind speed at the cutting opening, which easily causes the violent shaking of the pole piece and the suction of the pole piece and waste materials, and causes the pole piece to be defocused, thereby producing the continuous or broken belt phenomenon of the pole piece, affecting the laser cutting quality and the production efficiency, therefore, a new technical scheme is needed to be provided to solve the problems existing in the prior art.
Disclosure of Invention
The invention aims to solve the technical problem of providing a diversion type dust hood, so as to solve the problem that a pole piece is greatly vibrated at a cutting opening to be defocused when the dust hood removes dust, and provides the dust hood with the dust hood and a laser cutting device.
The technical scheme adopted by the invention for solving the technical problems is as follows:
the utility model provides a water conservancy diversion formula dust excluding hood, offer the cutting mouth that is used for dodging laser on the dust excluding hood, the dust excluding hood is inside to be including the dust removal chamber, be provided with a guiding device in the dust removal chamber, a guiding device will the dust removal chamber is separated into a plurality of dust removal district, and guiding device is used for carrying out the water conservancy diversion with the air current that flows through the dust excluding hood corresponding each dust removal district.
As an improvement of the above technical solution, the first flow guiding device is fixed at a position in the dust removing cavity corresponding to the position below the cutting opening.
As a further improvement of the technical scheme, the first flow guiding device is provided with a hollowed-out structure.
As a further improvement of the technical scheme, the hollowed-out structure comprises a plurality of strip-shaped grooves and/or a plurality of through holes.
As a further improvement of the above technical solution, the first flow guiding device includes a flow guiding sheet with a sheet structure, one side of the flow guiding sheet is connected with the inner wall of the dust hood, and the other side of the flow guiding sheet is inclined downward.
As a further improvement of the technical scheme, the first flow guiding device comprises a flow guiding sheet with a sheet structure, and two sides of the flow guiding sheet are respectively connected with two side inner walls of the dust hood.
As a further improvement of the technical scheme, the dust hood further comprises an air inlet cavity and an air outlet cavity, wherein the air inlet cavity is communicated with one side of the dust hood, the air outlet cavity is communicated with the other side of the dust hood, the dust hood is provided with a first air inlet for air inlet at the air inlet cavity, and an air outlet for air outlet at the air outlet cavity.
As a further improvement of the technical scheme, the dust hood is further provided with a second air inlet for air inlet at the air outlet cavity.
As a further improvement of the technical scheme, a second flow guiding device is arranged in the air outlet cavity, the second flow guiding device divides the air outlet cavity into a plurality of air outlet areas, and the air outlet areas correspond to dust removing areas in the dust removing cavity.
As a further improvement of the technical scheme, a third flow guiding device is arranged in the air inlet cavity and divides the air inlet cavity into a plurality of air inlet areas, and the air inlet areas correspond to dust removing areas in the dust removing cavity.
The dust removal device comprises the dust removal cover.
The dust removing device further comprises an air exhaust cover, wherein the air exhaust cover is communicated with the air outlet cavity, and air in the dust removing cover can be exhausted from the air outlet through air exhaust of the air exhaust cover.
As an improvement of the above technical solution, the dust removal device further comprises an air inlet device, wherein the air inlet device is arranged at the first air inlet and supplies air to the inside of the dust removal cover.
As a further improvement of the technical scheme, a second flow guiding device is arranged in the air outlet cavity, the second flow guiding device divides the air outlet cavity into a plurality of air outlet areas, and the air outlet areas correspond to dust removing areas in the dust removing cavity.
As a further improvement of the technical scheme, the air exhaust cover further comprises a plurality of air exhaust pipelines which are mutually isolated, the air exhaust pipelines are used for exhausting air corresponding to the air outlet cavity, and each air exhaust pipeline is respectively communicated with the air outlet area.
As a further improvement of the technical scheme, a third flow guiding device is arranged in the air inlet cavity, the air inlet cavity is divided into a plurality of air inlet areas by the third flow guiding device, and the air inlet areas correspond to dust removing areas in the dust removing cavity; the air inlet device is arranged at the position of the first air inlet corresponding to the dust removing area at the bottom, or a plurality of air inlet devices are arranged at the first air inlet, and the air speed of the air inlet device at the bottom is larger than that of other air inlet devices.
The laser cutting device comprises a laser emitting device and the dust removing device.
The beneficial effects of the invention are as follows:
the dust hood is provided with the first flow guiding device in the dust hood cavity to form the flow guiding dust hood, the first flow guiding device divides the dust hood cavity into a plurality of dust removing areas, and the flow guiding device is used for guiding the air flow flowing through the dust hood corresponding to each dust removing area, so that the pole pieces are prevented from being influenced by the overlarge air flow flowing through the cutting openings, and the pole pieces are prevented from being severely and greatly dithered to generate defocusing, so that stable laser cutting is ensured, and the cutting quality and the cutting efficiency are improved. The dust removing device with the dust removing cover and the laser cutting device have the same beneficial effects.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following description will briefly explain the drawings that are required to be used in the description of the embodiments:
FIG. 1 is a schematic view showing the overall structure of an embodiment of a dust removing device of the present invention;
FIG. 2 is a schematic view of the structure of a first embodiment of a dust hood of the present invention;
FIG. 3 is a side view of FIG. 2;
FIG. 4 is a schematic view of a first embodiment of a deflector according to the embodiment of FIG. 2;
FIG. 5 is a schematic view of a second embodiment of a deflector according to the embodiment shown in FIG. 2;
FIG. 6 is a schematic view of a second embodiment of a dust hood according to the present invention;
FIG. 7 is a side view of FIG. 6;
FIG. 8 is a schematic view of a first embodiment of a deflector according to the embodiment of FIG. 6;
FIG. 9 is a schematic view of a second embodiment of a deflector according to the embodiment of FIG. 6;
FIG. 10 is a schematic illustration of a portion of a hollow structure of a deflector according to the present invention;
FIG. 11 is a cross-sectional view of a first embodiment of the dust removing device of the present invention;
fig. 12 is a cross-sectional view of a second embodiment of the dust removing device of the present invention;
fig. 13 is a cross-sectional view of a third embodiment of the dust removing device of the present invention.
Detailed Description
The conception, specific structure, and technical effects produced by the present invention will be clearly and completely described below with reference to the embodiments and the drawings to fully understand the objects, features, and effects of the present invention. It is apparent that the described embodiments are only some embodiments of the present invention, but not all embodiments, and that other embodiments obtained by those skilled in the art without inventive effort are within the scope of the present invention based on the embodiments of the present invention. In addition, all the coupling/connection relationships referred to in the patent are not direct connection of the single-finger members, but rather, it means that a better coupling structure can be formed by adding or subtracting coupling aids depending on the specific implementation. The description of the orientations of the various elements of the invention in relation to the top, bottom, left, right, etc. is merely illustrative of the relative positions of the various elements of the invention in the drawings. The technical features of the invention can be interactively combined on the premise of no contradiction and conflict.
Fig. 1 is a schematic overall structure of an embodiment of a dust removing device according to the present invention, referring to fig. 1, in this embodiment, the dust removing device includes an air inlet device 1, a dust removing hood 2 and an air extracting hood 3, and by extracting air from the air extracting hood 3, an air flow can be formed in the dust removing hood 2, so that dust retained in the dust removing hood 2 can be removed, and a dust removing effect can be achieved. The dust hood 2 is of the following embodiment:
first embodiment:
fig. 2 is a schematic structural diagram of a first embodiment of a dust hood according to the present invention, fig. 3 is a side view of fig. 2, and referring to fig. 2 and 3, in the flow-guiding dust hood of this embodiment, a cutting opening 22 for avoiding laser is formed in the dust hood 2, a dust cavity 202 is included in the dust hood 2, a first flow guiding device 27 is disposed in the dust cavity 202, the dust cavity is divided into a plurality of connected or isolated dust removing areas by the first flow guiding device 27, and the first flow guiding device 27 is used for guiding the air flow flowing through the dust hood 2 corresponding to each dust removing area, so as to avoid the influence of the excessive air flow flowing through the cutting opening 22 on the pole piece, and avoid the occurrence of defocusing caused by severe and large shaking of the pole piece, thereby ensuring stable laser cutting, and being beneficial to improving the cutting quality and cutting efficiency.
Specifically, in this embodiment, the first flow guiding device 27 is fixed in the dust removing cavity and is located at the position corresponding to the cutting opening 22, the dust removing cavity is divided into two dust removing areas, the first dust removing area 2021 is located above the first flow guiding device, the second dust removing area 2022 is located below the first flow guiding device 27, the air flow flowing through the dust removing cover 2 passes through the two dust removing areas respectively under the flow guiding action of the first flow guiding device 27, so that the influence of the air flow flowing through the second dust removing area 2022 on the first dust removing area 2021 is reduced or avoided, therefore, the air flow flowing through the first dust removing area 2021 can be controlled within a lower wind speed range, smaller dust particles generated by laser cutting can be taken away, the large dust particles can not shake a pole piece, and settle to the lower side of the cutting opening 22, so that the air flow flowing through the second dust removing area 2022 is in a higher wind speed range, and the larger particles falling down can be removed, and the influence of the first flow guiding device 27 on the pole piece at the cutting opening of the second dust removing area 2022 can be reduced or avoided.
The first flow guiding device 27 comprises a flow guiding sheet 272 with a sheet structure, one side of the flow guiding sheet 272 is connected with the inner wall of the dust hood 2, and the other side of the flow guiding sheet 272 is inclined downwards, so that a second dust removing area 2022 communicated with the first dust removing area 2021 is enclosed with the bottom surface of the dust hood 2.
Fig. 4 is a schematic structural diagram of a first embodiment of the flow guiding device in the embodiment shown in fig. 2, fig. 5 is a schematic structural diagram of a second embodiment of the flow guiding device in the embodiment shown in fig. 2, and referring to fig. 4 and 5, the first flow guiding device 27 includes a flow guiding sheet 272 with a sheet structure and a hollow structure 271 arranged on the flow guiding sheet 272, and settled large particle dust can fall from the hollow structure 271 into the second dust removing area 2022, which is helpful for efficient dust removal. The hollow structure 271 includes a plurality of strip-shaped grooves and/or a plurality of through holes, and in the embodiment shown in fig. 4, the hollow structure 271 includes a plurality of strip-shaped grooves 273, and the strip-shaped grooves 273 extend from one side of the guiding plate 272 to the other side along the airflow direction and are parallel to each other, so that the large particle dust is conveniently deposited in the second dust removing area 2022. In the embodiment shown in fig. 5, the hollow structure 271 includes a plurality of through holes 274 uniformly distributed on the deflector 272. Of course, in practical implementation, the hollow structure 271 may also include other implementation manners, such as a wavy through groove or a net structure formed by a plurality of inclined grooves, etc., which also has the function of facilitating the large particle dust to drop into the second dust removing area 2022, so as to improve the dust removing efficiency.
Second embodiment:
fig. 6 is a schematic structural diagram of a second embodiment of the dust hood according to the present invention, fig. 7 is a side view of fig. 6, and the difference between the present embodiment and the first embodiment is that the first flow guiding device 27 includes the flow guiding fins 272' with a sheet structure, and two sides of the flow guiding fins 272' are respectively connected to two side inner walls of the dust hood 2, so that the second dust removing area 2022' separated from the first dust removing area 2021' is surrounded with the bottom of the dust hood 2, the first dust removing area 2021' and the second dust removing area 2022' are similar to the first dust removing area and the second dust removing area of the first embodiment, the air flow flowing through the dust hood 2 is respectively passed through the two dust removing areas by the flow guiding fins 272', and thus the influence of the air flow flowing through the second dust removing area 2022' on the first dust removing area 2021' is reduced or avoided, the air flow flowing through the first dust removing area 2021' is controlled within a lower wind speed range, so that small particles generated by laser cutting can be taken away, the small particles generated by the laser cutting can be prevented from shaking the dust can be greatly caused, the particles can be prevented from being dropped down from the second dust removing area by the air flow guiding fins 2022' by the air flow through the air flow guiding fins, and the dust can be greatly reduced from the dust can be prevented from the dust can be greatly from the dust can be removed from the dust particles by the dust can be removed by the dust by dust due to the dust can be removed.
Fig. 8 is a schematic structural view of a first embodiment of the flow guiding device in the embodiment shown in fig. 6, fig. 9 is a schematic structural view of a second embodiment of the flow guiding device in the embodiment shown in fig. 6, and referring to fig. 8 and 9, in this embodiment, the flow guiding plate 272 'is also provided with a hollow structure 271', the hollow structure 271 'includes a plurality of strip-shaped grooves and/or a plurality of through holes, and in the embodiment shown in fig. 8, the hollow structure 271' includes a plurality of strip-shaped grooves 273', and the strip-shaped grooves 273' extend from one side to the other side of the flow guiding plate 272 'along the air flow direction and are parallel to each other, so as to facilitate the large particle dust to settle into the second dust removing area 2022'. In the embodiment shown in fig. 9, the hollow structure 271' includes a plurality of through holes 274' uniformly distributed on the deflector 272 '. Similarly, in implementation, the hollow structure 271 'may also include other implementation manners, such as a net structure formed by wavy through grooves or a plurality of inclined grooves, etc., which also has the function of facilitating the large particle dust to drop into the second dust removing area 2022', thereby improving the dust removing efficiency.
Fig. 10 is a schematic cross-sectional view of the first and second embodiments of the hollow structure of the flow guiding device according to the present invention, and referring to fig. 10, fig. 10 a is a schematic cross-sectional view of the strip-shaped grooves 273, 273', which gradually decrease from top to bottom, so as to effectively prevent the air flow or dust particles below the first flow guiding device 27 from flowing upwards. Similarly, fig. 10 b is a schematic cross-sectional view of the through holes 274, 274' in the first and second embodiments, where the hole diameter of the through hole 274 gradually decreases from top to bottom, so as to effectively prevent the air flow or dust particles below the first deflector 27 from flowing upward.
Third embodiment:
fig. 11 is a cross-sectional view of a first embodiment of the dust removing device of the present invention, referring to fig. 1 and 11, the inside of the dust removing hood 2 further includes an air inlet cavity 201 and an air outlet cavity 203, the air inlet cavity 201 is communicated with one side of the dust removing cavity 202, the air outlet cavity 203 is communicated with the other side of the dust removing cavity 202, so that the air inlet cavity 201, the dust removing cavity 202 and the air outlet cavity 203 are sequentially communicated, the dust removing hood 2 is provided with a first air inlet 21 for air inlet at the air inlet cavity 201, an air outlet 23 for air outlet at the air outlet cavity 203, and air flows into the air inlet cavity 201 through the first air inlet 21 and flows through the dust removing cavity 202 to take away dust generated at the cutting opening 22, and then flows into the air outlet cavity 203 and flows out of the dust removing hood 2 from the air outlet 23, thereby achieving the dust removing effect. In combination with the above, the first flow guiding device 27 disposed in the dust removing cavity 202 achieves the partition flow guiding effect of the air flow in the dust removing cavity 202, so that the air flows with different air speeds can be introduced from the air inlet 21 correspondingly, the influence of the high-speed air flow below the cutting opening 22 on the pole piece at the cutting opening 22 is reduced on the premise of achieving effective dust removal, and the pole piece is effectively prevented from shaking severely and greatly to be defocused, so that stable laser cutting is ensured, and the cutting quality and the cutting efficiency are improved.
The dust cover 2 is further provided with the second air inlet 24 on the air outlet cavity 203, so that a pressure relief effect is achieved, when the negative pressure of the air outlet 23 is large, part of air enters the air outlet cavity 203 from the second air inlet 24 to realize the pressure relief, the air speed in the dust removing cavity 202 is reduced, the shaking defocusing effect of the air flow on the pole piece is reduced, and therefore stable laser cutting is guaranteed.
The second air inlet 24 is formed on the side wall of the dust hood 2 and is inclined along the direction from the dust removal cavity 202 to the air outlet 23, so that the area of the communication part between the second air inlet 24 and the air outlet cavity 203 can be enlarged, and the full air inlet pressure relief is facilitated. In this embodiment, the dust hood 2 is provided with a second air inlet 24, and in implementation, a plurality of second air inlets 24 may be provided on the side wall of the dust hood 2 corresponding to the air outlet cavity 203 to achieve the above-mentioned effects.
The air outlet cavity 203 gradually reduces from the dust removing cavity 202 to the air outlet 23 to form a closing-in structure, so that the flow rate can be increased and the pressure can be reduced when the air outlet 23 is pumped.
The dust hood 2 is of a straight-through structure, and the air inlet cavity 201, the dust hood 202 and the air outlet cavity 203 are sequentially communicated from one end to the other end of the dust hood 2, so that the airflow channel is a straight-through channel, and the dust removal efficiency is improved.
Based on the dust hood 2, the air exhaust hood 3 of the dust collector is communicated with the air outlet 23 of the dust hood 2 and is connected with an air exhaust source (not shown), and when the dust collector works, the air exhaust source (not shown) exhausts air to the air exhaust hood 3, so that air in the dust hood 2 can be pumped out from the air outlet 23, and dust is taken out of the dust hood 2, so that the aim of timely dust collection during laser cutting is fulfilled.
The dust removal device can be further provided with an air inlet device 1 to obtain a larger air inlet speed, and a common air knife can be selected as the air inlet device, and the air inlet device 1 is arranged at the first air inlet 21 and supplies air into the dust removal cover 2 to form a dust removal scheme of supplying air and exhausting air at the same time, so that the dust removal efficiency is improved.
Considering that the air supply of the air inlet device 1 can affect the pole piece at the cutting opening 22, the pole piece is easy to generate intense and large-amplitude shaking under the action of air flow, and the air inlet device 1 is arranged at the bottom of the position corresponding to the first air inlet 21, so that most of the air flow supplied by the air inlet device 1 blows to the bottom of the cutting opening 22, the influence of the air supply air flow on the pole piece can be reduced, and large-particle dust settled at the lower part of the dust removing cavity 202 can be blown away, thereby improving the dust removing efficiency.
In order to obtain a proper air inlet speed, a plurality of air inlet devices 1 can be arranged at the first air inlet 21 to supply air, and a lower air supply speed can be arranged for the air inlet devices 1 corresponding to the height of the cutting opening 22, so that excessive shaking of the pole piece caused by excessive air flow is avoided. In contrast, the air inlet device 1 positioned at a relatively high level below the cutting opening 22 may be provided with a relatively high air speed for air supply, so that large particle dust settled at the lower part of the dust removing chamber 202 is effectively removed, thereby improving dust removing efficiency.
Fourth embodiment:
fig. 12 is a cross-sectional view of a fourth embodiment of the dust collector of the present invention, and referring to fig. 12, a dust hood 2 and the dust collector of the present embodiment are substantially the same as those of the third embodiment, except that:
(1) In this embodiment, in order to effectively pump out the air in the dust removing cavity 202, the air outlet cavity 203 of the dust removing cover 2 is provided with the second flow guiding device 26, and the second flow guiding device divides the air outlet cavity 203 into a plurality of air outlet areas, and the air outlet areas correspond to the dust removing areas in the dust removing cavity 202, so that different air pumping pressures can be set corresponding to different air outlet areas, and the second flow guiding device 26 can guide the air flowing out of the dust removing cavity 202 in the air outlet cavity 203, thereby improving the air pumping efficiency and being beneficial to improving the dust removing efficiency.
The second flow guiding device 26 may be a plate structure integrally formed in the air outlet cavity 203, or a plate structure fixedly installed in the air outlet cavity 203, the second flow guiding device 26 divides the air outlet cavity 203 into two parts, namely a first air outlet region 2031 and a second air outlet region 2032, which correspondingly form a first air outlet 231 and a second air outlet 232 on the dust hood 2, and the second air outlet region 2032 corresponds to the air inlet device 1. Therefore, most of the air flow sent by the air inlet device 1 can be pumped out through the second air outlet area 2032 during air pumping, and the air pumping efficiency is improved. The position of the second flow guiding device 26 relative to the bottom of the dust hood 2 is not higher than the position of the lower side edge of the cutting opening 22 relative to the bottom of the dust hood 2, so that the influence of the air flow fed by the air inlet device 1 on the pole piece at the cutting opening 22 is further reduced, the position of the pole piece is kept within the cutting focus range, and the cutting quality and the cutting efficiency are guaranteed.
(2) In this embodiment, in order to better guide the airflow to flow to the lower side of the dust removing cavity 202, a third guiding device 25 may be disposed at a position of the lower side of the air inlet cavity 201, where the third guiding device 25 divides the air inlet cavity 201 into a plurality of air inlet areas, the air inlet areas correspond to the dust removing areas in the dust removing cavity 202, and different air feeding speeds may be set corresponding to different air inlet areas, so as to help to improve the dust removing efficiency, and the third guiding device 25 achieves guiding the air fed into the air inlet cavity 201 and avoid the influence on the pole piece at the cutting opening when the high-speed airflow enters the dust removing cavity 202.
The third flow guiding device 25 may be a plate structure integrally formed in the air inlet cavity 201, or a plate structure fixedly installed in the air inlet cavity 201, so that the air inlet cavity 201 forms an upper cavity and a lower cavity, which are respectively a first air inlet area 2011 located at the upper part and a second air inlet area 2012 located at the lower part, and correspondingly form a first upper air inlet 211 and a first lower air inlet 212, the air inlet device 1 is arranged at the first lower air inlet 212, and the air flow sent by the air inlet device 1 enters the dust removing cavity 202 along the second air inlet area 2012, thereby realizing the guiding effect on the air flow and helping to improve the dust removing efficiency. The position of the third flow guiding device 25 relative to the bottom of the dust hood 2 is not higher than the position of the lower side edge of the cutting opening 22 relative to the bottom of the dust hood 2, so that the influence of the air flow fed by the air inlet device 1 on the pole piece at the cutting opening 22 is further reduced, the position of the pole piece is kept within the cutting focus range, and the cutting quality and the cutting efficiency are guaranteed.
Except for the above-mentioned differences, other structures and principles of the present embodiment are substantially the same as those of the third embodiment, and will not be described herein.
Fifth embodiment:
fig. 13 is a cross-sectional view of a third embodiment of the dust collector of the present invention, and referring to fig. 13, the dust hood 2 and the dust collector of the present embodiment are substantially the same as those of the fourth embodiment, except that:
the device comprises a plurality of mutually isolated air extraction pipelines which respectively correspond to the air outlet areas in the fourth embodiment, so that different air extraction pipelines can be connected into air extraction sources with different pressures to realize the respective air extraction of different air outlet areas, and the air extraction efficiency is improved. In this embodiment, the air extraction hood 3 includes a first air extraction pipe 31 and a second air extraction pipe 32 that are isolated from each other, the first air extraction pipe 31 is communicated with the first air outlet region 2031, the second air extraction pipe 32 is communicated with the second air outlet region 2032, and the two air extraction pipes are respectively communicated with different air extraction sources (not shown), and by respectively extracting air from the first air extraction pipe 31 and the second air extraction pipe 32, air in the dust hood 2 can be respectively extracted from the first air outlet 231 and the second air outlet 232, and the air pressure of the air extraction can be the same or different, and can be adjusted as required. Based on the arrangement of the air extraction cover 3, a larger air extraction negative pressure can be arranged for the second air outlet region 2032, so that the air flow sent by the air supply device is effectively extracted, and turbulence generated in the dust removal cavity 202 due to low air extraction efficiency is avoided, and dust is retained.
Except for the above-mentioned differences, other structures and principles of the present embodiment are substantially the same as those of the fourth embodiment, and will not be described herein.
Example six (not shown):
the invention also provides a laser cutting device which comprises a laser emitting device and the dust hood. The setting of this dust excluding hood makes, when laser emission device launched cuts the pole piece, lets in the air current in the dust excluding hood and can effectively get rid of the dust that the cutting produced to effectively prevent the influence of air current to the pole piece, prevent that the pole piece from producing violently and shake defocusing by a wide margin, be favorable to improving cutting quality and cutting efficiency.
Embodiment seven (not shown):
the invention also provides a laser cutting device which comprises a laser emitting device and the dust removing device. The dust removing device is correspondingly arranged at the pole piece cutting position, and when the laser emitted by the laser emitting device cuts the pole piece, the dust removing device removes dust generated by cutting the pole piece, so that adverse effects of the dust on environment, equipment and the like are avoided. The setting of this dust collector makes, when laser emission device launched cuts the pole piece, lets in the air current in the dust excluding hood and can effectively get rid of the dust that the cutting produced to effectively prevent the influence of air current to the pole piece, prevent that the pole piece from producing violently and shake defocusing by a wide margin, be favorable to improving cutting quality and cutting efficiency.
The present invention is not limited to the above-described preferred embodiments, but various equivalent modifications and substitutions can be made by those skilled in the art without departing from the spirit of the present invention, and these equivalent modifications and substitutions are intended to be included in the scope of the present invention as defined in the appended claims.

Claims (8)

1. The utility model provides a water conservancy diversion formula dust excluding hood which characterized in that: the dust hood is provided with a cutting opening for avoiding laser, a dust removal cavity is formed in the dust hood, a first flow guiding device is arranged in the dust removal cavity and divides the dust removal cavity into a plurality of dust removal areas, and the first flow guiding device is used for guiding air flow flowing through the dust hood to correspond to each dust removal area; wherein,
the first flow guiding device is fixed at a position in the dust removing cavity, which is positioned below the cutting opening, a hollow structure is arranged on the first flow guiding device, the hollow structure comprises a plurality of strip-shaped grooves and/or a plurality of through holes, the first flow guiding device comprises a flow guiding sheet with a sheet-shaped structure, one side of the flow guiding sheet is connected with the inner wall of the dust removing cover, the other side of the flow guiding sheet is inclined downwards, or two sides of the flow guiding sheet are respectively connected with the inner walls of two sides of the dust removing cover;
the dust hood is characterized in that the dust hood further comprises an air inlet cavity and an air outlet cavity, the air inlet cavity is communicated with one side of the dust hood, the air outlet cavity is communicated with the other side of the dust hood, the dust hood is provided with a first air inlet for air inlet at the air inlet cavity, the air outlet cavity is provided with an air outlet for air outlet, the dust hood is further provided with a second air inlet for air inlet at the air outlet cavity, the air outlet cavity is internally provided with a second flow guiding device, the air outlet cavity is divided into a plurality of air outlet areas, the air outlet areas correspond to the dust removing areas in the dust hood, the air inlet cavity is internally provided with a third flow guiding device, the air inlet cavity is divided into a plurality of air inlet areas, and the air inlet areas correspond to the dust removing areas in the dust hood.
2. A dust collector, characterized in that: comprising the dust hood of claim 1.
3. The dust removing apparatus according to claim 2, wherein: the dust removal device further comprises an air extraction cover, wherein the air extraction cover is communicated with the air outlet cavity, and air in the dust removal cover can be extracted from the air outlet by extracting air from the air extraction cover.
4. A dust removing device according to claim 3, wherein: the dust removal device is characterized by further comprising an air inlet device, wherein the air inlet device is arranged at the first air inlet and supplies air to the inside of the dust removal cover.
5. A dust removing device according to claim 3, wherein: the air outlet cavity is internally provided with a second flow guiding device which divides the air outlet cavity into a plurality of air outlet areas, and the air outlet areas correspond to dust removing areas in the dust removing cavity.
6. The dust removing apparatus according to claim 5, wherein: the air exhaust cover further comprises a plurality of air exhaust pipelines which are isolated from each other, the air exhaust pipelines are used for exhausting air corresponding to the air outlet cavity, and each air exhaust pipeline is respectively communicated with the air outlet area.
7. The dust removing apparatus according to claim 4, wherein: a third flow guiding device is arranged in the air inlet cavity and divides the air inlet cavity into a plurality of air inlet areas, and the air inlet areas correspond to dust removing areas in the dust removing cavity; the air inlet device is arranged at the position of the first air inlet corresponding to the dust removing area at the bottom, or a plurality of air inlet devices are arranged at the first air inlet, and the air speed of the air inlet device at the bottom is larger than that of other air inlet devices.
8. A laser cutting device, characterized in that: comprising a laser emitting device and a dust removing device according to any one of claims 2 to 7.
CN201811350089.9A 2018-11-13 2018-11-13 Flow guide type dust hood, dust removal device and laser cutting device Active CN109277698B (en)

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WO2022022628A1 (en) * 2020-07-31 2022-02-03 厦门海辰新能源科技有限公司 Dust removal cover and dust removal device

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CN209288518U (en) * 2018-11-13 2019-08-23 深圳市海目星激光智能装备股份有限公司 A kind of flow-guiding type dust excluding hood, dust-extraction unit and laser cutting device

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CN2591963Y (en) * 2002-12-12 2003-12-17 黄桐 Wave mode deflecting device
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