CASING FOR TEXTILE MACHINE SPINDLES Russian patent published in 2016 - IPC D01H1/16 D01H1/24 

FIELD: textile.

SUBSTANCE: invention relates to textile industry and concerns textile machines noise-absorbing enclosure. Casing for textile machine spindles comprises enclosure with vibration and sound-absorbing layers attached on its inner surface and installed at its spindles level on machine spindles bearing pate along their row, enclosure is made in form of housing consisting of top and side plates, rigidly fixed to spindles bearing pate, and vertically arranged detachable cover, consisting of lower horizontal plate and vertical plate with slant, wherein thickness of placed on plates vibration-absorbing layer is in 2…4 times exceeds thickness of housing and cover plates, wherein casing sound absorbing enclosure is made in form of rigid and perforated walls, between which multilayer sound absorbing element is arranged, made in form of five layers, two of them, adjacent to walls, are sound-absorbing layers from materials with different density, while three central layers are combined, wherein axial layer is made sound-absorbing, and two symmetrically located, adjacent to it layers are made from sound reflecting material with complex shape, composed of evenly distributed hollow tetrahedrons, allowing to reflect sound waves incident in all directions, each of perforated walls has following perforation parameters: holes diameter - 3÷7 mm, perforation percentage 10 %÷15 %, wherein by form holes can be of circular, triangular, square, rectangular or rhomboid shape, wherein in case of non-circular holes, maximum diameter of circle inscribed into polygon shall be considered as nominal diameter, and plates from mineral wool on basalt base of “Rockwool” type are used as sound absorbing material, or from "URSA" mineral wool, or P-75 basalt wool, or a glass wool with a glass felt, herewith the sound absorbing element over its entire surface is lined with an acoustically transparent material, for example, EZ-100 glass fabric or "poviden" type polymer.

EFFECT: technical result is increase in noise reduction efficiency.

3 cl, 2 dwg