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CN-121988904-A - Laser cutting dust removal assembly for aluminum veneer machining

CN121988904ACN 121988904 ACN121988904 ACN 121988904ACN-121988904-A

Abstract

The invention discloses a laser cutting dust removing assembly for aluminum veneer processing, which comprises a dust removing pipe, a pipe body, a plurality of acoustic wave dust collecting assemblies and a cyclone separator, wherein one end of the pipe body is connected with the dust removing pipe, the acoustic wave dust collecting assemblies are annularly arranged on the inner wall of the pipe body relative to the axis of the pipe body and are used for collecting scattered dust in the axis area of the pipe body, the acoustic wave dust collecting assemblies comprise a mounting pipe, a piezoelectric ceramic transducer and a concave focusing lens, the mounting pipe is arranged on the inner wall of the pipe body, an opening of the mounting pipe faces to the center of the pipe body, the piezoelectric ceramic transducer is arranged in the mounting pipe, the concave focusing lens is arranged at the opening of the mounting pipe, a concave surface of the concave focusing lens faces to the piezoelectric ceramic transducer, and the cyclone separator comprises an air inlet, and the air inlet is connected with the other end of the pipe body. The invention can concentrate scattered dust through the plurality of acoustic dust collecting components and form cloud clusters, which is convenient for collecting the dust and improves the reliability and safety of dust removal.

Inventors

  • ZHANG ZHENHUA
  • WEN FEI

Assignees

  • 宁夏朗月新材料有限公司

Dates

Publication Date
20260508
Application Date
20260310

Claims (10)

  1. 1. The utility model provides an aluminium veneer processing is with laser cutting dust removal subassembly, includes the dust removal pipe, its characterized in that still includes: The dust removing device comprises a pipe body (1), wherein one end of the pipe body (1) is connected with the dust removing pipe; the plurality of acoustic dust collecting components (2) are annularly arranged on the inner wall of the pipe body (1) about the axis of the pipe body (1) in an array manner, and are used for collecting scattered dust in the axis area of the pipe body (1); The sound wave dust collection assembly (2) comprises a mounting tube (21), a piezoelectric ceramic transducer (22) and a concave focusing lens (23), wherein the mounting tube (21) is arranged on the inner wall of the tube body (1), an opening is arranged towards the center of the tube body (1), the piezoelectric ceramic transducer (22) is arranged in the mounting tube (21), the concave focusing lens (23) is arranged at the opening of the mounting tube (21), and the concave surface of the concave focusing lens is arranged towards the piezoelectric ceramic transducer (22); the cyclone separator (3) comprises an air inlet, and the air inlet is connected with the other end of the pipe body (1).
  2. 2. The laser cutting dust removal assembly for aluminum veneer machining according to claim 1, wherein the pipe body (1) comprises an air inlet section (12), a mounting section (13) and an air outlet section (14), two sides of the mounting section (13) are respectively connected with the air inlet section (12) and the air outlet section (14), the outer diameter size of the mounting section (13) is larger than that of the air inlet section (12) and the air outlet section (14), annular mounting grooves (131) are concentrically formed in the mounting section (13), and a plurality of acoustic dust collection assemblies (2) are all arranged in the mounting grooves (131).
  3. 3. The laser cutting dust removal assembly for aluminum veneer processing according to claim 2, wherein the laser cutting dust removal assembly further comprises an annular sealing plate (4), the sealing plate (4) is used for sealing the opening of the mounting groove (131), a plurality of avoidance holes (41) are formed in the sealing plate (4), and the avoidance holes (41) are in one-to-one correspondence with the concave focusing lenses (23) so as to avoid the corresponding concave focusing lenses (23).
  4. 4. A laser cutting dust removal assembly for aluminum veneer processing according to claim 3, wherein the inner diameter dimension of the sealing plate (4), the inner diameter dimension of the air inlet section (12) and the inner diameter dimension of the air outlet section (14) are all the same.
  5. 5. The laser cutting dust removal assembly for aluminum veneer processing according to claim 1, wherein a layer of diaphragm is arranged on the convex surface of the concave focusing lens (23), and the thickness of the diaphragm is smaller than the wavelength of sound waves generated by the piezoelectric ceramic transducer (22) in the diaphragm material.
  6. 6. The laser cutting dust removal assembly for aluminum veneer machining according to claim 4, wherein the pipe body (1) further comprises a tapered section (11) and a honeycomb rectifier (15), wherein one side with a larger caliber of the tapered section (11) is connected with the dust removal pipe, one side with a smaller caliber of the tapered section (11) is connected with one side, far away from the mounting section (13), of the air inlet section (12), and the honeycomb rectifier (15) is arranged on one side, close to the tapered section (11), of the air inlet section (12).
  7. 7. The laser cutting dust removal assembly for aluminum veneer machining according to claim 6, further comprising an outer tube (5), wherein the outer tube (5) is concentrically arranged with the tube body (1), one end of the outer tube (5) is connected with the outer wall of the tapered section (11), the other end of the outer tube is attached to the outer wall of the air outlet section (14), a first chamber (51) is formed between the outer tube (5) and the tube body (1), and the first chamber (51) is filled with sound absorption materials.
  8. 8. The laser cutting dust removal assembly for aluminum veneer processing according to claim 7, further comprising an annular partition plate (6), wherein the partition plate (6) is concentrically arranged with the pipe body (1), the outer side wall and the inner side wall of the partition plate (6) are respectively connected with the inner wall of the outer pipe (5) and the inner wall of the air inlet section (12), the partition plate (6) divides the first chamber (51) into a second chamber (61) on the outer side and a third chamber (62) on the inner side, the second chamber (61) is filled with a phase change material for absorbing heat in dust gas, and the third chamber (62) is filled with a sound absorption material.
  9. 9. The laser cutting dust removal assembly for aluminum veneer machining according to claim 1, wherein each acoustic wave dust collection assembly (2) is provided with a class D power amplifier for driving the piezoelectric ceramic transducer (22), and each class D power amplifier is integrated with a radiating fin.
  10. 10. The laser cutting dust removal assembly for aluminum veneer machining according to claim 6, further comprising a monitoring and regulating system (7) comprising: A laser diffraction particle size analyzer comprising a laser light source (71), the laser light source (71) being arranged on the inner wall of the tapered section (11) for monitoring the particle size distribution and concentration of dust in the incoming gas stream; a sound pressure sensor (72) provided on an inner wall of the air intake section (12) and provided close to the mounting section (13) for monitoring a sound pressure level within the pipe body (1); And the controller is electrically connected with the laser diffraction particle size analyzer (71), the sound pressure sensor (72) and the piezoelectric ceramic transducers (22), and is used for receiving and analyzing signals transmitted by the laser diffraction particle size analyzer (71) and the sound pressure sensor (72) and controlling the piezoelectric ceramic transducers (22) to execute corresponding operations.

Description

Laser cutting dust removal assembly for aluminum veneer machining Technical Field The invention relates to the technical field of aluminum veneer processing, in particular to a laser cutting dust removal assembly for aluminum veneer processing. Background In the field of aluminum veneer processing, laser cutting techniques have been widely used. When the laser cuts the aluminum veneer, the high-temperature laser beam enables the aluminum material to be melted or gasified rapidly, and a large amount of tiny metal dust particles are generated, if the dust particles cannot be collected and treated timely and effectively, the dust particles not only pollute the working environment and harm the physical health of operators, but also influence the precision and the service life of laser cutting equipment, and even possibly cause safety accidents. In the related art, the existing aluminum veneer processing dust collector mainly adopts the following three modes: 1. Mechanical filter dust collectors, such as cloth bag or cartridge dust collectors, draw in dust-laden gases by the negative pressure created by the blower, causing dust to be trapped as it passes through the filter media. However, the method has obvious bottlenecks when processing micron-sized dust generated by laser cutting of aluminum veneers, especially dust below 1 mu m, namely firstly, high-precision filter materials such as HEPA can ensure the filtering efficiency, but can bring higher initial pressure drop to increase the energy consumption of a system, secondly, aluminum powder dust is hard in texture and has edges and corners, the filter materials are seriously worn under high-speed airflow flushing, compact dust cakes are easily formed by embedding the filter materials into the filter materials or adhering to the surfaces, so that the equipment resistance is increased, pulse back-blowing ash cleaning is required to be carried out by frequently starting and stopping, the production rhythm is interrupted, explosion risks exist for the high-concentration dust blown back, and meanwhile, the maintenance cost is also increased due to frequent replacement of the filter materials. 2. The electrostatic precipitator uses high voltage electric field to drive the dust to charge and is trapped under the action of electric field force. Its advantages are low airflow resistance and low energy consumption. However, the application of the aluminum powder to the aluminum single plate laser cutting scene has inherent defects that aluminum is used as a good conductor, dust is easy to generate charge leakage in an electric field, so that the dust removing efficiency is unstable, and in addition, high-temperature dust and possible sparks generated by laser cutting are easy to cause explosion in an explosion limit environment rich in aluminum powder. 3. The cyclone separator separates dust by utilizing centrifugal force, and has simple structure, no material consumption and high temperature resistance. But its separation efficiency is highly dependent on dust particle size and particle density, and its capture efficiency is low for a large amount of light, fine particulate matter (typically <10 μm) produced by laser cutting of aluminum veneers. Therefore, how to provide a laser cutting dust removing component for processing an aluminum veneer is a problem to be solved by those skilled in the art. Disclosure of Invention The invention aims to provide a laser cutting dust removing assembly for aluminum veneer processing, which comprises a dust removing pipe, a plurality of sound wave dust collecting assemblies, a cyclone separator and a cyclone separator, wherein one end of the pipe is connected with the dust removing pipe, the sound wave dust collecting assemblies are annularly arranged on the inner wall of the pipe around the axis of the pipe and are used for collecting scattered dust in the axis area of the pipe, the sound wave dust collecting assemblies comprise a mounting pipe, a piezoelectric ceramic transducer and a concave focusing lens, the mounting pipe is arranged on the inner wall of the pipe, an opening of the mounting pipe faces to the center of the pipe, the piezoelectric ceramic transducer is arranged in the mounting pipe, the concave focusing lens is arranged at the opening of the mounting pipe, and a concave surface of the concave focusing lens faces to the piezoelectric ceramic transducer, and the cyclone separator comprises an air inlet, and the air inlet is connected with the other end of the pipe. According to the laser cutting dust removal assembly for aluminum veneer processing, the pipe body comprises the air inlet section, the mounting section and the air outlet section, two sides of the mounting section are respectively connected with the air inlet section and the air outlet section, the outer diameter size of the mounting section is larger than that of the air inlet section and the air outlet section, annular mounting grooves are concentrica