Kochetov acoustic emclosure for textile machine spindle

FIELD: textile, paper.

SUBSTANCE: acoustic enclosure for the spindles of a textile machine, containing a casing, installed on the machine spindle rail at the level of its spindles along their row, with vibration- and noise-absorbing layers fixed to its inner surface, and on the outside there are plates, cantilevered to it along the row of machine spindles, and a vibration absorbing layer on their lower surface. The spindles on the spindle rail of the machine are installed by means of elastic gaskets made of elastomer. The ratio of their total rigidity to the bending stiffness of the spindle rail lies in the optimum range of the following values: 0.01…0.1, and the thickness of the vibration-absorbing layer, placed on the plates, is 2…4 times the thickness of the plates. As the material of the vibration-absorbing layer, an elastic sheet vibration-absorbing material with a coefficient of internal losses of not less than 0.2 or a composite material or a plasticate are used. And as a sound-absorbing material of the casing, the elements of mineral wool, based on basalt, or mineral wool, or basalt wool, or fiber glass, covered with glass wool, or foamed polymer, polyethylene or polypropylene are used. The entire surface of the sound-absorbing material is covered with an acoustically transparent material. According to the invention, the spindle enclosure comprises of a sound-absorbing device made in the form of rigid and perforated walls, between which there is a multi-layer sound-absorbing element made in the form of five layers. Two of the layers, adjacent to the walls, are sound-absorbing layers of materials of different densities, and three central layers are combined. The axial layer is made sound-absorbing, and two symmetrically located and adjacent layers are made of a sound-reflecting material consisting of uniformly distributed hollow tetrahedra, allowing to reflect the sound waves falling in all directions. Each of the perforated walls has the following perforation parameters: the diameter of the holes is 3÷7 mm, the percentage of the perforation is 10%÷15%. Holes can be of round, triangular, square, rectangular or diamond shape. In case of unround holes the nominal diameter shall be maximum diameter of circumference inscribed in a polygon.

EFFECT: better noise reduction.

3 dwg

 



 

Same patents:

FIELD: textiles, paper.

SUBSTANCE: balloon divider of spinning or spinning and twisting machine, characterised by the presence of concentrically arranged upper and lower elements made in the form of rings with a slot for bringing the fiber and located coaxially to the ring of the rotor. The ratio of diameter of the upper ring to the diameter of the lower ring is made as 1 to (1.15÷1.25), while the rings are mounted with an ability of vertical reciprocating movement and mounted with holder on the screws, placed in a metal housing, placed on a spindle rod. The diameter of the lower ring of the balloon divider is made larger than the diameter of the spinning ring.

EFFECT: invention enables to increase strength of the yarn, to improve the quality of its winding on the tube chuck and increase productivity of the equipment by improving the speed rate of the machine operation, to increase nonfailure operation time of twisting-winding pair of the rotor.

1 tbl, 4 dwg

FIELD: textile industry, in particular, equipment for draw frame.

SUBSTANCE: housing has sound-isolating guard made in the form of drop cover fixed on vibration-active units of draw frame. Sound-absorbing guard is positioned on head part of draw frame having comb planks. Sound-absorbing layers are fixed on inner surface of guard. Thickness of vibration-absorbing layer exceeds that of cover material by 2-4 times. Housing members are mounted on draw frame by means of vibration-isolating rubber layers having total rigidity lower than that of cover. Vibration-absorbing layer is made from elastic vibration-absorbing sheet material having intrinsic loss coefficient of at least 0.2, or composite, or plasticized rubber. Sound-absorbing material for guard consists of members made from basalt-based mineral wool, or mineral wool, or basalt wool, or glass wool lined with glass felt, or foamed polymer such as polyethylene or polypropylene. Sound-absorbing member is lined with acoustically-transparent material such as glass cloth or polymer, said material being applied onto entire surface of said member. Sound-absorbing material for guard may be based on aluminum-containing alloys which are further filled with titanium hydride or air with density ranging between 0.5 and 0.9 kg/m3, and having the following strength characteristics: compression strength ranging between 5 and 10 MPa and flexural strength ranging between 10 and 20 MPa. Sound-absorbing material for guard may be made from soft foamed porous sound-absorbing material such as polyurethane foam or polyethylene foam, or rigid porous sound-absorbing material such as foamed aluminum. Sound-absorbing material may be alternatively made in the form of crumbs of solid vibration-damping materials such as elastomer, polyurethane, or plasticized rubber, said crumbs being placed into enclosure of sound-conducting material. Crumb fractions have optimal sizes ranging between 0.3 and 2.5 mm.

EFFECT: increased efficiency in reducing of noise created during operation of draw frame.

6 cl, 1 dwg

FIELD: textile engineering.

SUBSTANCE: housing has guard formed as body and mounted on spindle bar of textile machine, at the level of spindles, along row of spindles and provided with vertical detachable cover and vibration-absorbing and sound-absorbing layers, both fixed to guard inner surface. Guard body consists of upper and side plates rigidly attached to spindle bar, and detachable cover consisting of lower horizontal plate and vertical beveled plate. Thickness of vibration-absorbing layer fixed to plates exceeds thickness of body and cover plates by 2-4 times. Vibration-absorbing layer is elastic vibration-absorbing sheet material having intrinsic loss coefficient of at least 0.2, or composite material, or plasticized rubber. Sound-absorbing material of guard has members made from basalt-based mineral wool, or mineral wool, or basalt-based wool, or glass wool lined with glass felt, or foamed polymer such as polyethylene or polypropylene. Sound-absorbing member is lined with acoustically transparent material such as glass cloth or polymer applied onto its entire surface. Sound-absorbing material for guard may be made from soft foamed porous sound-absorbing material such as polyurethane foam, or polyethylene foam, or rigid porous sound-absorbing material such as foam aluminum. Sound-absorbing material for guard may be made in the form of crumbs of solid vibration-damping materials such as elastomer, polyurethane or plasticized rubber, said crumbs being placed within enclosure of sound-conducting material. Crumb fraction has sizes ranging between 0.3 mm and 2.5 mm.

EFFECT: increased efficiency in reducing of noise created by rotating spindles.

5 cl, 1 dwg

FIELD: textile engineering.

SUBSTANCE: housing has guard formed as body and mounted on spindle bar of textile machine, at the level of spindles, along row of spindles and provided with vertical detachable cover and vibration-absorbing and sound-absorbing layers, both fixed to guard inner surface. Guard body consists of upper and side plates rigidly attached to spindle bar, and detachable cover consisting of lower horizontal plate and vertical beveled plate. Thickness of vibration-absorbing layer fixed to plates exceeds thickness of body and cover plates by 2-4 times. Vibration-absorbing layer is elastic vibration-absorbing sheet material having intrinsic loss coefficient of at least 0.2, or composite material, or plasticized rubber. Sound-absorbing material of guard has members made from basalt-based mineral wool, or mineral wool, or basalt-based wool, or glass wool lined with glass felt, or foamed polymer such as polyethylene or polypropylene. Sound-absorbing member is lined with acoustically transparent material such as glass cloth or polymer applied onto its entire surface. Sound-absorbing material for guard may be made from soft foamed porous sound-absorbing material such as polyurethane foam, or polyethylene foam, or rigid porous sound-absorbing material such as foam aluminum. Sound-absorbing material for guard may be made in the form of crumbs of solid vibration-damping materials such as elastomer, polyurethane or plasticized rubber, said crumbs being placed within enclosure of sound-conducting material. Crumb fraction has sizes ranging between 0.3 mm and 2.5 mm.

EFFECT: increased efficiency in reducing of noise created by rotating spindles.

5 cl, 1 dwg

FIELD: textile engineering.

SUBSTANCE: housing has guard mounted on spindle bar of textile machine, at the level of spindles, along row of spindles and provided with vertical detachable cover and vibration-absorbing layer fixed to guard inner surface and sound-absorbing layer. Guard consists of upper part and lower part, each of said parts having body made from sheet angular members with apex angle of 90 deg. Sheet members are rigidly attached to spindle bar upper and lower parts. Thickness of vibration-absorbing layer fixed to plates exceeds thickness of body plates and cover by 2-4 times. Housing parts are fixed on textile machine by means of rubber layers having total rigidity lower than that of vibration-isolating spindle hanger. Vibration-absorbing material is elastic vibration-absorbing sheet material having intrinsic loss coefficient of at least 0.2, or composite material, or plasticized rubber. Sound-absorbing material of guard has members made from basalt-based mineral wool, or mineral wool, or basalt-based wool, or glass wool lined with glass felt, or foamed polymer such as polyethylene or polypropylene. Sound-absorbing member is lined with acoustically transparent material such as glass cloth or polymer applied onto its entire surface. Sound-absorbing material for guard may be made from soft foamed porous sound-absorbing material such as polyurethane foam, or polyethylene foam, or rigid porous sound-absorbing material such as foam aluminum. Sound-absorbing material for guard may be made in the form of crumbs of solid vibration-damping materials such as elastomer, polyurethane or plasticized rubber, said crumbs being placed within enclosure of sound-conducting material. Crumb fraction has sizes ranging between 0.3 mm and 2.5 mm.

EFFECT: increased efficiency in reducing of noise created by rotating spindles.

5 cl, 1 dwg

FIELD: textile engineering.

SUBSTANCE: housing has guard mounted on spindle bar of textile machine, at the level of spindles, along row of spindles and provided with vertical detachable cover and vibration-absorbing layer fixed to guard inner surface and sound-absorbing layer. Guard consists of upper part and lower part, each of said parts having body made from sheet angular members with apex angle of 90 deg. Sheet members are rigidly attached to spindle bar upper and lower parts. Thickness of vibration-absorbing layer fixed to plates exceeds thickness of body plates and cover by 2-4 times. Housing parts are fixed on textile machine by means of rubber layers having total rigidity lower than that of vibration-isolating spindle hanger. Vibration-absorbing material is elastic vibration-absorbing sheet material having intrinsic loss coefficient of at least 0.2, or composite material, or plasticized rubber. Sound-absorbing material of guard has members made from basalt-based mineral wool, or mineral wool, or basalt-based wool, or glass wool lined with glass felt, or foamed polymer such as polyethylene or polypropylene. Sound-absorbing member is lined with acoustically transparent material such as glass cloth or polymer applied onto its entire surface. Sound-absorbing material for guard may be made from soft foamed porous sound-absorbing material such as polyurethane foam, or polyethylene foam, or rigid porous sound-absorbing material such as foam aluminum. Sound-absorbing material for guard may be made in the form of crumbs of solid vibration-damping materials such as elastomer, polyurethane or plasticized rubber, said crumbs being placed within enclosure of sound-conducting material. Crumb fraction has sizes ranging between 0.3 mm and 2.5 mm.

EFFECT: increased efficiency in reducing of noise created by rotating spindles.

5 cl, 1 dwg

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

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

FIELD: textile and chemical industry, in particular, noise-absorbing guard for textile machines.

SUBSTANCE: unit for producing of high-strength viscose cord has mechanism for blocked lifting of encapsulation shield and forced drawing ventilation valve, air duct for forced drawing ventilation equipped with valve, air duct for removal of air-vapor mixture from first plasticizing bath pipes, encapsulation shield positioned at side where thread is formed, transverse and longitudinal partitions, thread forming set of equipment, air duct of permanently functioning drawing ventilation system and encapsulating shield positioned at side where drawing, collecting and transportation of thread are performed. Each of encapsulation shields has carcass formed as parallelepiped defined by front and rear walls of panel, each made U-shaped. There is slit-type perforation on front wall, with perforation coefficient being accepted equal to or exceeding 0.25. Panel walls are fixed with respect to one another by means of vibration damping covers. Noise-absorbing material of noise-damping members is made in the form of plate made from basalt-base mineral wool, or mineral wool, or basal wool, or glass wool with glass wool facing, or foamed polymer such as polyethylene or polypropylene. Noise-absorbing member is faced over its entire surface with acoustically transmitting material.

EFFECT: increased efficiency in reducing of noise level and increased efficiency of unit.

8 cl, 3 dwg

FIELD: textile and chemical industry, in particular, noise absorbing guards for spinning machines.

SUBSTANCE: spinning machine for staple viscose textile fiber comprises two single-sided spinning machines with sections at each side, and has set of fiber forming equipment, encapsulating shield, mechanism for blocked lifting of shield and enhanced suction valve, enhanced suction air tube, valve with hydraulic gate, and permanent suction air duct. Internal vibration isolation system for spinning machine has flexible members made from solid elastomer or wood. Vibration isolation system for frame of machine has flexible members extending along edge of machine to join said frame with foundation block. Rigidity of internal isolation flexible members of machine exceeds by 3-5 times the rigidity of flexible members joining machine frame to foundation block.

EFFECT: increased efficiency in reducing of noise volume and increased capacity of spinning machine.

4 cl, 3 dwg

FIELD: textile industry, in particular, equipment for wet spinning machines.

SUBSTANCE: feeding frame for textile machine has binders mounted on columns and equipped with hangers and brackets, spool holders placed on hangers, and guiding rollers. Each of spool holders has rotary stop disposed at its lower end and adapted for holding spools in operating position and allowing spools to be removed and installed in zone at the level of operator's eyes without detachment of spool holders from frame hangers. Aperture of each hanger has size slightly greater than diameter of spool holder hook rod. Each hanger has rib allowing spool holder to be removed from hanger only upon turning thereof through angle of about 60° to hanger axis for preventing spontaneous falling of spool holder from hanger. Guiding rollers have flange made in the form of continuous conical disk arranged at its one side and flange made in the form of four fingers arranged at its other side. Such construction imparts strength to rollers and allows rollers to be readily cleaned from filaments adhered thereto. Frame units are mounted on two columns transverse thereto. Attachments for all frame units are made adjustable to provide for mounting of spools of different sizes.

EFFECT: convenient usage, reduced labor intensity for operator, complicated manufacturing and maintenance.

4 cl, 6 dwg

FIELD: textile industry, in particular, non-circular weaving equipment, for example, weaving units.

SUBSTANCE: apparatus has shaft disposed between columns and adapted for carrying of rotary lever with rotating pressure roll, and spiral spring. Shaft is immovably fixed between flat columns attached by means of bolt-type protrusions to vertically arranged base. Spiral spring is mounted on shaft and spring ends are fixed on rotary lever and on one of columns. Shaft is made stepped and is equipped with basic end portions terminating in threaded parts. Flat columns have rectangular portions continued with bolt-type protrusions. Column arranged at the side of spring end has cylindrical opening for accommodation of rectilinear end of spring. Cylindrical recess provided in rotary lever hub aperture on its internal surface at the side of arrangement of spring is adapted for accommodation of rectilinear end of spring.

EFFECT: improved operating characteristics and operating conditions.

6 cl, 7 dwg

FIELD: textile engineering, in particular, spindle suspenders for spinning machine.

SUBSTANCE: apparatus has upper and lower flexible members located on spindle bar between supporting flange of spindle receptacle and supporting washer. Flexible member located in upper part of spindle bar is made in the form of annular flat spring secured along outer diameter on spindle bar by means of three screws, and cooperating along inner diameter with supporting flange of spindle receptacle through intermediate ring. Flexible member located in lower part of spindle bar is made in the form of plate-shaped flexible members connected along outer diameter by means of ring having T-shaped profile and connected along inner diameter by means of ring whose inner surface cooperates with outer surface of spindle receptacle and supporting washer equipped with nut.

EFFECT: increased vibration isolating effectiveness and stabilized position of spindle axis upon pressing it to tangential belt.

2 cl, 1 dwg

FIELD: textile engineering, in particular, spindle suspenders for spinning machine.

SUBSTANCE: vibration-isolating suspender for spindle has flexible members located in spindle bar between supporting flange of spindle and end surface of nut. Flexible members are additionally located in gap between spindle and spindle bar and are made in the form of bodies of rotation. Flexible members embrace sleeve serving as restricting device for providing desired rigidity of flexible members. Sleeve is positioned between spindle and spindle bar.

EFFECT: increased vibration isolating effectiveness in resonance mode, simplified construction and mounting process.

2 cl, 1 dwg

FIELD: textile engineering, in particular, spindle suspenders for spinning machine.

SUBSTANCE: apparatus has upper and lower flexible members located on spindle bar between supporting flange of spindle receptacle and supporting washer. Flexible members are made in the form of annular flat springs secured along outer diameter on spindle bar by means of at least three screws, and cooperating along inner diameter with supporting flanges of spindle receptacle and with supporting washer equipped with nut through intermediate ring.

EFFECT: increased vibration isolating effectiveness of apparatus and stabilized position of spindle axis upon pressing it to tangential belt.

2 cl, 1 dwg

FIELD: textile engineering, in particular, spindle suspenders for spinning machine.

SUBSTANCE: vibration-isolating suspender for spindle has flexible members located in spindle bar between supporting flange of spindle and end surface of bar. Flexible members located in upper part of spindle bar have section formed as T-shaped sleeve located between spindle supporting flange and end surface of spindle bar. Sleeve is fixed from rotation around its axis by means of pin secured in spindle bar and penetrating into supporting flange of spindle in spaced relation with respect to flange wall. Flexible members located in lower part of spindle bar are made in the form of flexible washer biased by means of spring through end surface of nut cooperating with threaded part of suspender for spindle.

EFFECT: increased vibration isolating effectiveness in resonance mode, simplified construction and mounting process.

2 cl, 1 dwg

FIELD: textile engineering, in particular, spindle suspenders for spinning machine.

SUBSTANCE: apparatus for establishing spindle on machine has upper and lower flexible members located on spindle bar between supporting flange of spindle receptacle and supporting washer. Flexible member located in upper part of spindle bar is made in the form of conical spring whose larger base abuts against rib provided in spindle bar, and lower base abuts against supporting flange of spindle receptacle. Flexible member located in lower part of spindle bar is made in the form of conical spring whose larger base abuts against rib provided in spindle bar and smaller base abuts against supporting washer which is biased by nut cooperating with threaded part of spindle receptacle.

EFFECT: increased vibration isolating effectiveness and stabilized position of spindle axis upon pressing it to tangential belt.

1 dwg

FIELD: textile engineering, in particular, hanging equipment for spindles of spinning machines.

SUBSTANCE: apparatus has upper and lower flexible members arranged on spindle bar between supporting flange of spindle receptacle and supporting washer. Flexible members are made in the form of paired plate-shaped flexible parts connected along their outer diameter by means of ring having T-shaped profile and along their inner diameter by means of annular protrusions formed on supporting flange and washer and protrusions formed on spindle bar.

EFFECT: increased efficiency in vibration isolation and stabilized position of spindle pin upon pressing thereof to tangential belt.

2 cl, 5 dwg

FIELD: textile engineering, in particular, hanging equipment for spindles of spinning machines.

SUBSTANCE: apparatus has upper and lower flexible members arranged on spindle bar between supporting flange of spindle receptacle and supporting washer. Flexible member located in upper part of spindle bar is made in the form of two coaxial bushings rigidly connected with one another by means of at least three rod-type or spring-type flexible members. Flexible member positioned in lower part of spindle bar is made in the form of flexible bushing manufactured from elastomer.

EFFECT: increased efficiency in vibration isolation and stabilized position of spindle pin upon pressing thereof to tangential belt.

2 dwg

FIELD: textile industry, in particular, spindle hanging equipment for spinning machines.

SUBSTANCE: apparatus has bracket fixed on spindle bar, spindle holder mounted on bracket by means of flexible supporting members, springs located on bracket and designed for pressing spindle to tangential drive belt of spinning machine, and means for forced displacement of holder relative to bracket and pressing of spindle to immovably fixed brake upon stopping thereof. Bracket has two cantilevered rods and connection plank fixed on their free ends. Spindle holder is positioned on flexible supporting members for displacement thereon. Flexible supporting member is made in the form of pair of flat coil springs, said pair being put onto rod. Bushing made from elastomer is positioned between coil springs.

EFFECT: increased efficiency in vibration isolation and stability of spindle pin upon pressing it to tangential belt.

3 cl, 5 dwg

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