CASING FOR TAPE MACHINE Russian patent published in 2018 - IPC D01H5/16 D01H1/16 E04B1/82 

FIELD: textile.

SUBSTANCE: invention relates to textile industry and concerns a noise-attenuating barrier for textile machines. Casing for the tape machine contains a soundproof enclosure in the form of a tilting lid fixed to the vibration units of the machine, sound-insulating fencing is fixed on the head part of the machine, containing combed strips, and vibration-absorbing layers are fixed on the inner surface of the fence. Thickness of the vibration damping layer is 2…4 times greater than the thickness of the lid material. Casing elements are mounted onto the machine by means of vibration-proof rubber pads, the total rigidity of which is lower than the rigidity of the lid. Sound-absorbing element of the sound-proof enclosure is made in the form of a resonant panel containing a smooth and perforated surface between which is placed a composite sound-absorbing layer of complex shape, which is an alternation of solid sections and hollow sections, the frame of which is made of a rigid sound-absorbing material, hollow sections are formed by prismatic surfaces, that are in their cross-section parallel to the plane of the drawing, have the shape of a parallelogram, whose inner surface has a toothed or wavy structure. Teeth tops face inside the prismatic surfaces, and the ribs of the prismatic surfaces are fixed respectively on the smooth and the perforated surfaces. Cavities formed by a smooth and perforated surfaces, between which a composite sound-absorbing layer of complex shape is located, are filled with a soft sound-absorbing material, and cavities of the hollow sections formed by the prismatic surfaces are filled with a foamed polymer. Cavities of hollow sections formed by prismatic surfaces, are connected by resonant holes with cavities formed by smooth and perforated surfaces, between which a combined sound-absorbing layer of complex shape is arranged.

EFFECT: technical result is increased efficiency of noise reduction.

1 cl, 4 dwg