GUARD FOR TEXTILE MACHINE SPINDLES Russian patent published in 2007 - IPC D01H1/16 D01H1/24 

FIELD: equipment for textile machines.

SUBSTANCE: guard has housing positioned on spindle bar of textile machine, at the level and row of spindles, and equipped with vibration and sound-absorbing layers provided on housing inner surface, and planks fixed in cantilevered position along row of spindles on housing outer surface. Vibration-absorbing layer is provided on lower surface of planks. Housing encloses both sides of machine so as to form rectangular box with heat withdrawal process openings formed in upper and lower plates of rectangular box. Spindles are fixed on spindle bar by means of flexible elastomer layers, with ratio of total rigidity of flexible layers to flexural rigidity of spindle bar constituting 0.01-0.1. Ratio of total area F₁ of process openings to total housing area F is F₁/F=0.1-0.4, and thickness of vibration-absorbing layer fixed on planks exceeds thickness of planks by 2-4 times. Material of vibration-absorbing layer is elastic vibration-absorbing sheet material having internal loss coefficient of at least 0.2, or composite material. Sound-absorbing material for housing consists of members made from basalt-based mineral wool. Sound-absorbing member is lined over its entire surface with acoustically permeable material such as fiber glass. Sound-absorbing material for housing may be made from material based on aluminum-bearing alloys, followed by filling said material with titanium hydride or air to density of 0.5-0.9 kg/m³ and having following strength characteristics: compression strength 5-10 MPa, flexural strength 10-20 MPa. Sound-absorbing material for housing may be made from foamed porous sound-absorbing material such as foamed polyurethane, or polyethylene, or from rigid porous sound-absorbing material such as foamed aluminum, or said material may be made in the form of dust of vibration suppressing materials such as elastomer, polyurethane, or plastic compound placed into enclosure of acoustically permeable material, with sizes of dust particles ranging between 0.3 mm and 2.5 mm.

EFFECT: increased efficiency in minimizing sound created during operation of textile machine.

6 cl, 2 dwg