Equipment and technique for producing micro seam acoustic board

Abstract

This invention discloses manufacturing facility for micro seam sound-absorbing panel, which comprises joined power system, hand-operated or automatic step precise press system with punch rotation arms to control vertical motion of convex mould with a plurality of press heads with end of inclined surface structure distributed single row or multiple rows, parameter determination system and parameter detection device belonged to JT-9 optical projection detector and composed of light source, lens and reflector; wherein, the travel of press head motion controls gap width of sound-absorbing panel between 20~50 microns, the length of press head is 1.5~5.0mm. the invention also discloses the corresponding manufacture technique.

Description

technical field [0001] The invention relates to a production equipment and process of a sound-absorbing panel, in particular to a production equipment and process of a micro-slit sound-absorbing panel. Background technique [0002] With the continuous development of large-scale industrial production, noise pollution has become one of the three major pollutions alongside air pollution and water pollution. It has seriously affected people's life and health, and noise control needs to be strengthened urgently. Sound absorption is one of the main measures of noise control. [0003] At present, most commonly used sound-absorbing materials are porous materials such as glass wool, mineral wool, perlite, foam plastics, etc., and resonant sound-absorbing structures, such as perforated plate sound-absorbing bodies, thin-plate resonant sound-absorbing bodies, and membrane materials. However, these materials have some shortcomings, such as difficulty in waterproofing and moisture resis...

AI Technical Summary

Problems solved by technology

The micro-slit sound absorption theory was proposed by Mr. Ma Dayou, a senior academician in my country in 1992. The micro-slit sound-absorbing structure has very narrow slits, and its slit width ranges from a few microns to tens of microns, so it is very difficult to process and produce. So far , there has been no product with micro-slit sound-absorbing structure to enter the test and practical application

In addition, the chemical etching method can be used to process narrow seams, but the production process often requires multiple processes such as drawing, photographing, film making, film sticking, corrosion and cleaning, and operators may be exposed to chemical substances. The main disadvantage of this method is that Processed substrates are limited to thinner sheet metal

Although laser slit production is theoretically feasible, it has great restrictions on the selection of plate properties, and the processing cost is high, so it is not easy to form large-scale industrial production

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