CN116900479A - Dust removing structure and dust removing method - Google Patents

Dust removing structure and dust removing method Download PDF

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Publication number
CN116900479A
CN116900479A CN202310818245.4A CN202310818245A CN116900479A CN 116900479 A CN116900479 A CN 116900479A CN 202310818245 A CN202310818245 A CN 202310818245A CN 116900479 A CN116900479 A CN 116900479A
Authority
CN
China
Prior art keywords
electrostatic
dust
laser
assembly
dust removal
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202310818245.4A
Other languages
Chinese (zh)
Inventor
杨世晗
吴恺
李入作
林雅文
诸峥
奚玉文
蔡子豪
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
China Tobacco Jiangsu Industrial Co Ltd
Original Assignee
China Tobacco Jiangsu Industrial Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by China Tobacco Jiangsu Industrial Co Ltd filed Critical China Tobacco Jiangsu Industrial Co Ltd
Priority to CN202310818245.4A priority Critical patent/CN116900479A/en
Publication of CN116900479A publication Critical patent/CN116900479A/en
Pending legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C3/00—Separating dispersed particles from gases or vapour, e.g. air, by electrostatic effect
    • B03C3/34—Constructional details or accessories or operation thereof
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C3/00—Separating dispersed particles from gases or vapour, e.g. air, by electrostatic effect
    • B03C3/34—Constructional details or accessories or operation thereof
    • B03C3/40—Electrode constructions
    • B03C3/45—Collecting-electrodes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00—Working by laser beam, e.g. welding, cutting or boring
    • B23K26/14—Working by laser beam, e.g. welding, cutting or boring using a fluid stream, e.g. a jet of gas, in conjunction with the laser beam; Nozzles therefor
    • B23K26/142—Working by laser beam, e.g. welding, cutting or boring using a fluid stream, e.g. a jet of gas, in conjunction with the laser beam; Nozzles therefor for the removal of by-products
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00—Working by laser beam, e.g. welding, cutting or boring
    • B23K26/70—Auxiliary operations or equipment
    • B23K26/702—Auxiliary equipment

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

Abstract

The invention relates to the technical field of laser processing, in particular to a dust removing structure and a dust removing method, wherein the dust removing structure comprises a focusing beam splitter, a laser emission channel is arranged on the focusing beam splitter, a focusing lens is arranged in the laser emission channel, a jet hole communicated with the laser emission channel is formed on the focusing beam splitter, and the jet hole is used for guiding airflow to blow to the outlet end of the laser emission channel; the air supply assembly is communicated with the jet hole; and the electrostatic adsorption component is arranged on the tooth surface of the laser drilling drum and can adsorb dust by utilizing static electricity. The invention ensures the penetrability of the refraction light and the intensity of the focused light, and ensures the laser processing efficiency.

Description

Dust removing structure and dust removing method
Technical Field
The invention relates to the technical field of laser processing, in particular to a dust removing structure and a dust removing method.
Background
With the development of industrial level in recent years, the laser processing technology is widely applied to the surface of materials, and the laser processing technology is widely applied to metal and nonmetal materials, and has the excellent advantage of being indisputable for certain materials with high brittleness, hardness and melting point. The method has the advantages of high processing speed, high efficiency, high processing structure precision, high controllability, small surface damage and low cost.
In the cigarette industry, a laser drilling drum is matched with a cigarette rubbing roller to process cigarettes. And punching the cigarettes by using laser. While laser processing techniques have many advantages, the high temperature of the laser ablates the surface of the cigarette to produce a large amount of solid particles, which are of relatively small mass, which can flow upward with the high temperature gases during processing and ultimately adhere to the focusing lens of the laser device. As the particles attached to the lens increase, the penetration of the refracted light becomes poor, the intensity of the focused light is insufficient, and the power is reduced.
Therefore, a dust removing structure and a dust removing method are required to solve the above problems.
Disclosure of Invention
The invention aims to provide a dust removing structure and a dust removing method, which ensure the penetrability of refraction light and the intensity of focused light and ensure the laser processing efficiency.
To achieve the purpose, the invention adopts the following technical scheme:
dust removal structure includes:
the focusing beam splitter is provided with a laser emission channel, a focusing lens is arranged in the laser emission channel, a jet hole communicated with the laser emission channel is formed in the focusing beam splitter, and the jet hole is used for guiding airflow to blow to the outlet end of the laser emission channel;
the air supply assembly is communicated with the jet hole;
and the electrostatic adsorption component is arranged on the tooth surface of the laser drilling drum and can adsorb dust by utilizing static electricity.
Further, the laser drilling drum further comprises a vacuum suction assembly, wherein an air suction through hole is formed in the laser drilling drum, and the vacuum suction assembly is communicated with the air suction through hole.
Further, the vacuum suction assembly comprises a vacuum pump which is communicated with the air suction through hole through a suction pipeline.
Further, a plurality of exhaust through holes are formed along the circumferential direction of the laser drilling drum at intervals, a plurality of groups of vacuum suction assemblies are arranged, and the vacuum suction assemblies and the exhaust through holes are in one-to-one correspondence.
Further, the air draft through holes are formed in tooth grooves of the laser drilling drum.
Further, the air supply assembly includes an air compressor and an air supply pipe, and the air compressor communicates with the jet hole through the air supply pipe.
Further, a throttle valve is arranged on the air supply pipe.
Further, the electrostatic adsorption assembly comprises an electrostatic rod and an electrostatic generator, wherein the electrostatic rod is arranged on the tooth surface of the laser drilling drum, and the electrostatic generator is arranged on the laser drilling drum and is electrically connected with the electrostatic rod.
Further, the electrostatic rod device further comprises a controller and a grounding wire, wherein the controller is electrically connected with the electrostatic rod, the grounding wire is electrically connected with the controller, and the controller can selectively enable the grounding wire to be connected with or disconnected from the electrostatic rod.
The dust removing method uses the dust removing structure to remove dust, and comprises the following steps:
s1, starting an air supply assembly, blowing stable air flow into a jet hole, and starting an electrostatic adsorption assembly to adsorb dust by using static electricity;
s2, detecting dust particles adsorbed on the electrostatic adsorption component in real time;
s3, judging whether dust particles on the electrostatic adsorption component reach an adsorption upper limit, if so, carrying out the next step, and if not, returning to the step S2;
s4, the electrostatic adsorption component is powered off to remove static electricity, and dust particles on the electrostatic adsorption component are collected.
The invention has the beneficial effects that:
the invention provides a dust removing structure, wherein a laser emission channel is arranged on a focusing beam splitter, a focusing lens is arranged in the laser emission channel, a jet hole communicated with the laser emission channel is arranged on the focusing beam splitter, an air supply assembly is communicated with the jet hole, air flow enters the laser emission channel through the jet hole and is blown out from an outlet end of the laser emission channel, and an electrostatic adsorption assembly is arranged on a laser punching drum. Through blowing in the air current in laser emission passageway, can prevent that the dust from entering into the laser emission passageway, can blow off the dust of deposit on focusing lens simultaneously, electrostatic adsorption subassembly can adsorb the dust that laser ablation and air current blown off to avoid the dust to adhere to on focusing lens, guarantee the penetrability and the focusing light intensity of refraction light, guarantee laser machining efficiency.
The dust removing method provided by the invention uses the dust removing structure to remove dust, so that dust can be prevented from adhering to the focusing lens, the penetrability of refraction light and the strength of focusing light are ensured, and the laser processing efficiency is ensured.
Drawings
FIG. 1 is a schematic view of a dust removal structure of the present invention;
FIG. 2 is a schematic diagram of an air supply assembly in a dust extraction structure according to the present invention;
fig. 3 is a schematic diagram of an electrostatic adsorption assembly in a dust removing structure according to the present invention.
In the figure:
1. a focusing beam splitter; 11. a laser emission channel; 12. a focusing lens; 13. jet holes; 2. an electrostatic adsorption assembly; 21. an electrostatic wand; 22. an electrostatic generator; 23. a controller; 24. a ground wire; 3. a laser drilling drum; 31. an air draft through hole; 4. a cigarette; 5. a gas supply assembly; 51. an air compressor; 52. a throttle valve.
Detailed Description
The technical scheme of the invention is further described below with reference to the attached drawings and the embodiments. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting thereof. It should be further noted that, for convenience of description, only some, but not all of the drawings related to the present invention are shown.
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixed or removable, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
In the present invention, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.
In the process of cigarettes, the cigarettes are required to be perforated by laser, and in order to ensure the penetrability of refraction light and the intensity of focused light, and ensure the laser processing efficiency, as shown in fig. 1-3, the invention provides a dust removing structure. The dust removing structure comprises a focusing beam splitter 1, a gas supply assembly 5 and an electrostatic adsorption assembly 2.
The focusing beam splitter 1 is provided with a laser emission channel 11, a focusing lens 12 is arranged in the laser emission channel 11, the focusing beam splitter 1 is provided with a jet hole 13 communicated with the laser emission channel 11, and the jet hole 13 is used for guiding airflow to blow to the outlet end of the laser emission channel 11; the air supply assembly 5 is communicated with the jet hole 13; the electrostatic adsorbing assembly 2 is arranged on the tooth surface of the laser drilling drum 3, and the electrostatic adsorbing assembly 2 can adsorb dust by utilizing static electricity.
Dust particles generated by ablating cigarettes 4 are blown away from the focusing lens 12 through the air supply assembly 5, dust particles are prevented from being adsorbed on the focusing lens 12, and can be adsorbed through the electrostatic adsorption assembly 2, so that solid particles generated by laser ablation in a processing environment are removed by utilizing an electrostatic effect, the manual disassembly is reduced, the dust removal of the lens is reduced, or the interval of manual operation is prolonged, the processing equipment is ensured to be in a working state for a long time, the working time is prolonged, and the working efficiency is improved.
Further, the dust removing structure further comprises a vacuum sucking component, an air exhausting through hole 31 is formed in the laser drilling drum 3, and the vacuum sucking component is communicated with the air exhausting through hole 31. By the cooperation of the vacuum suction assembly and the suction through hole 31, dust particles generated by laser ablation are sucked and discharged through the suction through hole 31. And by providing the exhaust through holes 31 on the laser drilling drum 3, the arrangement of the exhaust through holes 31 is facilitated.
Further, the vacuum suction assembly includes a vacuum pump, which communicates with the suction through-hole 31 through a suction pipe. The vacuum pump creates a negative pressure during operation, thereby exhausting the dust particles through the suction conduit, reducing the concentration of dust particles generated by laser ablation, and further ensuring the cleaning of the focusing lens 12. In other embodiments, the vacuum generator may be used in conjunction with a gas source to create a negative pressure for the suction operation, without undue limitation.
Further, a plurality of air suction through holes 31 are formed along the circumferential direction of the laser drilling drum 3 at intervals, a plurality of groups of vacuum suction assemblies are arranged, and the vacuum suction assemblies and the air suction through holes 31 are arranged in one-to-one correspondence. Through the arrangement, the plurality of ventilation through holes 31 form a gas circuit, and the vacuum suction assembly can form stable negative pressure on the laser drilling drum 3 in the running process, so that dust in the environment of the whole system is sucked, the dust is taken away from the processing environment, and the cleaning of the working environment is ensured.
Further, the air suction through holes 31 are opened in the tooth grooves of the laser drilling drum 3. By arranging the air draft through holes 31 in the tooth grooves, the strength of the laser drilling drum wheel 3 can be ensured, the teeth of the laser drilling drum wheel 3 cannot be influenced, and the dust generated by ablation can be discharged while the smooth operation of cigarettes is ensured.
Further, the air supply assembly 5 includes an air compressor 51 and an air supply pipe through which the air compressor 51 communicates with the jet hole 13. Specifically, the air jet generated by the air compressor 51 enters the jet hole 13 through the air supply pipe, and since particles generated on the surface of the laser ablation material are generally small in mass and easily change in movement mode along with the air flow, the flow path of dust particles can be changed by the air flow in the jet hole 13 so that the dust particles are far away from the focusing lens 12. And the air flow can blow out dust particles around the focusing lens 12 from the laser emission channel 11 to prevent the particles from being adsorbed on the surface of the lens, and the blown air flow is combined with the ascending air flow to cool the hot air flow and reduce the lifting force of the air on dust.
Further, a throttle valve 52 is provided on the gas supply pipe. By arranging the throttle valve 52, the flow of the air flow can be controlled according to actual requirements, so that the jet flow speed is changed according to the concentration of actual dust, and the influence of backflow caused by too high jet flow speed is reduced.
Further, the electrostatic adsorbing assembly 2 includes an electrostatic rod 21 and an electrostatic generator 22, the electrostatic rod 21 is disposed on the tooth surface of the laser drilling drum 3, and the electrostatic generator 22 is disposed on the laser drilling drum 3 and electrically connected to the electrostatic rod 21. The electrostatic rod 21 is electrostatically charged by the electrostatic generator 22, and the electrostatic effect is mainly due to the fact that an electric field exists around the charged body, the charge distribution of the substance can be changed, so that different charges appear at one end of the light and small object, which is close to the light and small object, and the same charges appear at the other end of the light and small object, which is far away from the light and small object. Because the electrostatic rod 21 attracts more closely dissimilar charges than more distant repulsive forces of the same charges, the charged body can attract light and small objects, thereby adsorbing dust particles in the air environment.
Further, the dust removing structure further comprises a controller 23 and a grounding wire 24, the controller 23 is electrically connected with the electrostatic rod 21, the grounding wire 24 is electrically connected with the controller 23, and the controller 23 can selectively enable the grounding wire 24 to be connected with or disconnected from the electrostatic rod 21. Specifically, in order to avoid the influence of the electrostatic rod 21 on the machining, the electrostatic rod 21 is mainly mounted on the teeth of the laser drilling drum 3, and the ground wire 24 is selectively connected to or disconnected from the electrostatic rod 21 by a control device, and is periodically connected to the ground wire, so that the effect of removing static electricity is achieved. After the dust particles reach the upper limit of the adsorption of the electrostatic rod 21, the grounding wire 24 is connected with the electrostatic rod 21 to remove the dust particles, and if the upper limit of the adsorption is not reached, the grounding wire 24 is disconnected with the electrostatic rod 21 to continuously adsorb the dust particles.
The dust removing structure provided by the embodiment can take dust particles generated by ablation in the laser processing process out of the working environment by the methods of blowing out dust by airflow, negative pressure adsorption and electrostatic effect, reduce the possibility that the dust particles are covered on the focusing lens 12, ensure the stability of laser processing power, reduce the times of adjustment and inspection on laser equipment, prolong the effective working time, and further improve the efficiency in the actual processing process.
The embodiment also provides a dust removing method, which uses the dust removing structure to remove dust, and comprises the following steps:
s1, starting an air supply assembly 5, blowing stable air flow into a jet hole 13, and simultaneously starting a vacuum suction assembly and starting an electrostatic adsorption assembly 2 to adsorb dust by utilizing static electricity;
s2, detecting dust particles adsorbed on the electrostatic adsorption component 2 in real time;
s3, judging whether dust particles on the electrostatic adsorption component 2 reach an adsorption upper limit, if so, carrying out the next step, and if not, returning to the step S2;
s4, the electrostatic adsorption component 2 is powered off to remove static electricity, and dust particles on the electrostatic adsorption component 2 are collected.
The air supply assembly 5, the electrostatic adsorption assembly 2 and the vacuum suction assembly are matched together, jet flow is formed by matching the air supply assembly 5 with the jet hole 13, and dust at the front end of the lens is blown away; through adding electrostatic rod and convulsions through-hole, the dust in the suction environment guarantees laser processing power's stability, reduces the number of times to laser equipment adjustment inspection, prolongs effective operating time to improve the efficiency in the actual course of working.
It is to be understood that the above examples of the present invention are provided for clarity of illustration only and are not limiting of the embodiments of the present invention. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. Any modification, equivalent replacement, improvement, etc. which come within the spirit and principles of the invention are desired to be protected by the following claims.

Claims (10)

1. Dust removal structure, its characterized in that includes:
the focusing beam splitter (1), the focusing beam splitter (1) is provided with a laser emission channel (11), a focusing lens (12) is arranged in the laser emission channel (11), the focusing beam splitter (1) is provided with a jet hole (13) communicated with the laser emission channel (11), and the jet hole (13) is used for guiding airflow to blow to the outlet end of the laser emission channel (11);
a gas supply assembly (5), the gas supply assembly (5) being in communication with the jet aperture (13);
the electrostatic adsorption component (2), the electrostatic adsorption component (2) is arranged on the tooth surface of the laser drilling drum (3), and the electrostatic adsorption component (2) can utilize static to adsorb dust.
2. The dust removal structure according to claim 1, further comprising a vacuum suction assembly, wherein the laser drilling drum (3) is provided with an air suction through hole (31), and the vacuum suction assembly is communicated with the air suction through hole (31).
3. A dust removal structure according to claim 2, characterized in that the vacuum suction assembly comprises a vacuum pump which communicates with the suction through hole (31) through a suction duct.
4. The dust removal structure according to claim 2, wherein a plurality of air suction through holes (31) are formed along the circumferential direction of the laser drilling drum (3) at intervals, a plurality of groups of vacuum suction assemblies are arranged, and the plurality of groups of vacuum suction assemblies are arranged in one-to-one correspondence with the plurality of air suction through holes (31).
5. The dust removal structure according to claim 2, characterized in that the suction through holes (31) are open in the tooth slots of the laser perforated drum (3).
6. The dust removing structure according to claim 1, wherein the air supply assembly (5) includes an air compressor (51) and an air supply pipe, the air compressor (51) being in communication with the jet hole (13) through the air supply pipe.
7. A dust removing structure according to claim 6, characterized in that a throttle valve (52) is provided on the gas supply pipe.
8. The dust removal structure according to claim 1, characterized in that the electrostatic adsorbing assembly (2) comprises an electrostatic rod (21) and an electrostatic generator (22), the electrostatic rod (21) being arranged on the tooth surface of the laser drilling drum (3), the electrostatic generator (22) being arranged on the laser drilling drum (3) and being electrically connected to the electrostatic rod (21).
9. The dust removal structure of claim 8, further comprising a controller (23) and a ground wire (24), the controller (23) being electrically connected to the electrostatic wand (21), the ground wire (24) being electrically connected to the controller (23), the controller (23) being capable of selectively switching the ground wire (24) on or off the electrostatic wand (21).
10. A dust removal method, characterized in that dust removal is performed using the dust removal structure according to any one of claims 1 to 9, comprising the steps of:
s1, starting an air supply assembly (5), blowing stable air flow into a jet hole (13), and starting an electrostatic adsorption assembly (2) to adsorb dust by utilizing static electricity;
s2, detecting dust particles adsorbed on the electrostatic adsorption component (2) in real time;
s3, judging whether dust particles on the electrostatic adsorption component (2) reach an adsorption upper limit, if so, carrying out the next step, and if not, returning to the step S2;
s4, the electrostatic adsorption component (2) is powered off to remove static electricity, and dust particles on the electrostatic adsorption component (2) are collected.
CN202310818245.4A 2023-07-05 2023-07-05 Dust removing structure and dust removing method Pending CN116900479A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202310818245.4A CN116900479A (en) 2023-07-05 2023-07-05 Dust removing structure and dust removing method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202310818245.4A CN116900479A (en) 2023-07-05 2023-07-05 Dust removing structure and dust removing method

Publications (1)

Publication Number Publication Date
CN116900479A true CN116900479A (en) 2023-10-20

Family

ID=88350378

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202310818245.4A Pending CN116900479A (en) 2023-07-05 2023-07-05 Dust removing structure and dust removing method

Country Status (1)

Country Link
CN (1) CN116900479A (en)

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