CN2185272Y

CN2185272Y - Apron for spinning drafting assembly

Info

Publication number: CN2185272Y
Application number: CN 92229780
Authority: CN
Inventors: 邵玉秋
Original assignee: Nantong Textile Rubber Products Co ltd
Current assignee: Nantong Textile Rubber Products Co ltd
Priority date: 1992-08-03
Filing date: 1992-08-03
Publication date: 1994-12-14
Anticipated expiration: 2002-08-03

Abstract

The utility model relates to a leather ring for a spinning traction device, which is composed of an inner layer, an outer layer and a reinforced layer, wherein, convex patterns are arranged on the surface of the inner layer of the leather ring for a spinning traction device, a hilly maintain shape is formed by high and low uneven patterns, and a closed annular shape is formed in a way that the peripheries of the patterns are mutually crossed.

Description

Apron for spinning drafting assembly

The utility model relates to a kind of apron of spinning, drawing device, and particularly a kind of inner surface is provided with the apron of decorative pattern.

Apron be split spin with air-jet spinning machinery in requisite parts.In the running, require to have enough coefficient of frictions between the inner surface of apron and the roller of driving shaft to guarantee run-in synchronism; And the requirement of the coefficient of friction between apron inner surface and the metal steady pin is the smaller the better to guarantee that apron operates steadily.For reaching this purpose, No. 87212525 utility model patents of China have proposed a kind of interior decorative pattern apron of closed with air cushion and sucker effect.This apron is made up of outer, internal layer and strengthening layer, and internal layer is provided with the decorative pattern of protrusion, and the planar graph of decorative pattern is the hexagonal or the muntjac line shape of sealing, the rising on same plane of protrusion decorative pattern.This decorative pattern apron applied fluid mechanics principle, the protruding height of sealing decorative pattern remains on same plane, forms an enclosure space in the hope of the surface with roller or metal steady pin, guarantees the generation of air cushion and sucker.Because the protruding height of decorative pattern must be on same plane, except that the processing technology difficulty is very big, cost high, the sealing decorative pattern that protruding height is identical resembles the flat one deck netted reinforcing rib that is located on the apron inner surface, when apron during through the little steady pin of radius of curvature, the decorative pattern bending deflects heaves, heave damage pattern structure a little not only easy to wear, and increased the friction of steady pin and apron inner surface, influence the even running of apron.In addition, the sealing decorative pattern that protruding height is identical, because decorative pattern is closed circular, identical protruding high decorative pattern supports not yielding mutually.Yet in the apron operation process, apron is when the steady pin, and decorative pattern diminishes with the apron radius of curvature and distortion repeatedly, and this distortion makes height shape such as reinforcement, protruding equate to be the very easily fatigue damage of decorative pattern of closed, and fall at the end service life.

The purpose of this utility model is to provide a kind of apron of improved spinning, drawing device, when it is not only worked and roller enough big frictional force is arranged, and the frictional force between steady pin is minimum, and decorative pattern is not fragile, long service life.

The purpose of this utility model realizes by following design.A kind of apron that is used for the spinning, drawing device is made up of internal layer, skin and strengthening layer, and the internal layer surface is provided with the decorative pattern of protrusion, and the protruding high height of decorative pattern does not wait and is mountain range, hills shape, decorative pattern prolong limit and decorative pattern formation closed form intersecting each other.

The utility model since the protruding height of decorative pattern not on same plane, when apron is crooked, the protruding tall and big decorative pattern peak valley of decorative pattern to the centre in both sides pushes, decorative pattern can not deflect to be heaved, and the anti-distortion of decorative pattern, and therefore pattern structure of the present utility model has been eliminated the defective that the identical fatiguability of the protruding height of decorative pattern damages, both satisfied with the roller contact friction force big, with the little requirement of apron pin contacts coefficient of friction, improved widely the service life of apron again, and increased the apron traveling comfort.

Further specify embodiment of the present utility model below in conjunction with accompanying drawing.

Fig. 1, apron are installed in the schematic diagram on the cradle;

Fig. 2 a, Fig. 2 b, Fig. 2 c, the apron decorative pattern schematic diagram of apron intermediate cam shape of the present utility model, hexagon and circular closure ring-type;

Fig. 3, the apron section amplification figure that the protruding height of decorative pattern is vertically cut open along apron when radius of curvature is infinitely great;

Fig. 4, decorative pattern shown in Figure 2 the apron radius of curvature equal steady pin and when crooked, decorative pattern is along the schematic diagram of apron buckling deformation.

Embodiment

With reference to Fig. 1,1 and 2 is to be installed in upper leather ring 1 and following apron 2 on the cradle respectively.Be example explanation present embodiment now with apron 1.

Apron 1 tightly is enclosed within on roller 4 and the steady pin 3.Roller 4 rotates and drives aprons 1 synchronous operation, apron 1 slide on the top of steady pin 3 by.Bending when apron 1 process roller 4 and steady pin 3 tops, radius of curvature minimum when steady pin 3 tops, stretching through time between roller 4 and the steady pin 3, the radius of curvature infinity.

The decorative pattern of present embodiment as shown in Figure 2, its flat shape can be triangle, pentagon or circle, the protruding height of its decorative pattern as shown in Figure 3, is uneven as mountain range, hills shape.The decorative pattern of this shape is when contacting with roller, because roller 4 surfaces are provided with rhombus or come thread etc. decorative pattern, apron 1 inner surface decorative pattern contacts with the decorative pattern engagement on roller 4 surfaces, and coefficient of friction increases greatly, has guaranteed the synchronous operation of apron 1 and roller 4.And when apron 1 contacted with steady pin, apron 1 was identical with steady pin top radius of curvature with the radius of curvature of steady pin 3 contacts site, and apron 1 inner surface decorative pattern is vertically deflecting distortion as shown in Figure 4; Because the protruding height of apron 1 inner surface decorative pattern is not or not same plane, the decorative pattern of peak valley both sides is to the peak valley extruding of centre during distortion, decorative pattern can not deflect distortion and heave, do not wait owing to the protruding height of decorative pattern again, the contact area of apron 1 inner surface and steady pin 3 reduces, frictional force reduces, and the apron traveling comfort increases.

Certainly in concrete application, the decorative pattern of the described apron of present embodiment does not require must be all closed, facts have proved that closed decorative pattern accounts for total amount when over half, just can obtain the effect that is close with complete closure.

The described closed form decorative pattern of present embodiment can be generalized to rhombus, the cellular shape of hexagon, natural chamois leather shape, ox-hide surface shape, sheepskin surface shape and tangerine peel shape etc. can form all closed decorative patterns, and its effect is identical.

Facts have proved that the protruding height of above-mentioned decorative pattern is that 12-100 μ m, bar are wide when the 25-100 μ m, best results.The matrix material of apron is if select for use nitrile rubber, nitrile rubber and polyvinyl chloride also to use or nitrile rubber and vinyl chloride-vinyl acetate resin and usefulness, and the characteristic of decorative pattern is best.

Claims

1, a kind of apron that is used for the spinning, drawing device is made up of internal layer, skin and strengthening layer, and apron internal layer surface is provided with the decorative pattern of protrusion, it is characterized in that, the protruding high height of decorative pattern does not wait and is mountain range, hills shape, decorative pattern prolong limit formation closed hoop intersecting each other.

2, apron as claimed in claim 1 is characterized in that, described closed hoop is triangular in shape, circle or ox-hide surface shape, sheepskin surface shape.

3, apron as claimed in claim 1 is characterized in that, described closed hoop assumes diamond in shape or the hexagon cellular shape.

4, apron as claimed in claim 1 is characterized in that, described closed hoop is natural chamois leather shape.

5, apron as claimed in claim 1 is characterized in that, described closed hoop is orange peel shape.

As claim 2,3,4 or 5 described aprons, it is characterized in that 6, the protruding height of described decorative pattern is the wide 25-100 μ m of being of 12-100 μ m, bar.

7, apron as claimed in claim 3 is characterized in that, the apron matrix material is selected nitrile rubber or nitrile rubber and polyvinyl chloride for use and used or nitrile rubber and vinyl chloride-vinyl acetate resin and usefulness.