Technical fabric under polymer coating

 

The invention relates to the textile industry and for technical fabrics under polymer coating containing synthetic basic and weft threads made rubinowy weave with a fixed blade main pastrami. Rapport on the basis contains an even number of yarns, at least 6 at intervals of 4, forming two identical threads of pauropoda - front and back with an odd number of threads, at least 3, at the same time within each pauropoda front warp threads are interwoven with the weft threads by the following mathematical relationships: 0,5 Ry/1+1/1 (0,25 Ryto 0.5), where Ry-rapport weave on a duck, with a long main deck cover an odd number of weft threads, at least 3, and the corresponding warp front and back of paulapatton intertwined in antiphase to each other, forming on a duck reverse mirror axis of symmetry relative to the longitudinal axis, each pauropoda on the basis of there are two groups alternating one equally interwoven warp threads, shifted relative to each other along the base on the number of threads equal to half of rapport on a duck, and the number of equally interwoven warp threads in each is the basis. This fabric has a high breaking load. 1 C. p. F.-ly, 2 tab., 9 Il.

The invention relates to the textile industry and can be used as a reinforcing traction frame technical products with an elastomeric coating, mainly running tracks (tracks) snowmobiles and mnogoproletnyh conveyor belts for transportation of rocks.

The basic technical requirements to the tissues beneath the polymer coating is used as a reinforcing traction frame caterpillars snowmobiles and mnogoproletnyh conveyor belts are minimal (not more than 4.5%) deformation elongation in the range of operating loads (10% of the breaking), providing withoverall tracks of snowmobiles by an amount not exceeding the stroke of the tension devices or reduction to a minimum (no more than 3) number of inevitable processes fumbling conveyor belts in operation and the subsequent extrusion; sufficient (not less than 4.5 kg/cm) bonding strength to the surface of the frame with an elastomeric material, exclusive bundle of strips of reinforcing frame. In addition, to avoid spreading of the warp and weft threads in the process technologies the Known fabric TC-200-2, used as a reinforcing traction frame caterpillars snowmobile "Buran", "Lynx", "Taiga" and mnogoproletnyh of rubber conveyor belts. Fabric TC-200-2 plain formed by the interweaving of the two systems woven synthetic perpendicular yarns, the filling on the basis of equal 93,7 of 97.4%, the padding duck 34,9-38,59, the ratio of the linear density of warp and weft threads is equal to 0.95-1.0, the ratio of technological densities in the warp and weft is 2,43-2,79 ["polyamide Fabric for conveyor belts and flat belts" GOST 18215-87].

The disadvantage of this technical fabrics are significant deformation elongation zone workloads (5,0-7,0%), due to the high orebody warp (16,6% and 19.4%), resizing tissue hot air on the basis of prior (9,02)%, which leads to vitiagivaet caterpillars by an amount greater than the stroke of the tension devices, and makes healthy caterpillars are unsuitable for further use. In addition, insufficient adhesion of the fabric TC-200-2 to the rubber (4,0-4,2 kg/cm) is the main cause delamination of rubber frame caterpillars snowmobiles and mnogoproletnyh konveyerny mnogoproletnyh conveyor belts, made polutorapolnymi weave of synthetic fibers, and formed by the connection of two 4-thread front and back satin weave by alternating front and back of the main beams, United by a common weft [patent Germany 2436922, CL 29 D 29/00, D 03 D 1/00, 65 G 15/30, 03.03.1977,].

This fabric is mainly suitable for its intended purpose according to the main indicators, however, has a significant drawback - the distance between the threads in process, due to insufficient fastening of the overlap length and a low coefficient of coupling, equal 1,01.

The most similar in structure and the achieved effect is fabric surface weave with a fixed key or weft long decks, overlapping consecutive several, not less than 4, filaments opposite system to form on one (front) side convex scars with longitudinal or transverse direction, and on the other (wrong) side of the main or filling decks, mounted on a fixed structure between the scars. Long decks yourself, how would additionally attached (bound) to act plain (1/1) or twill (2/1 or 1/2), including cross twill is lo threads in which multiple rapport establishing the weave. The basic rules for constructing tissue surface weave shown in table.1. [see the book Kutepov O. S. the Structure and design of tissue - M.: Legprombytizdat, 1988, S. 74-76].

A disadvantage of the known tissue surface weave is the heterogeneity of the adhesion of the front and the reverse sides of the surface for the elastomeric coating, due to the different in appearance and texture of the support surfaces. This makes them inappropriate as a reinforcing woven frame under plastic covering.

An object of the invention is the creation of a reversible fabric surface weave under polymer coating for reinforcing the traction frame of the snowmobile tracks and rubber mnogoproletnyh conveyor belts with the same amount of adhesion to the rubber on both sides.

This problem is solved by the fact that technical fabric beneath the polymer coating is made rubinowy weave with a fixed blade main pastrami. Rapport on the basis contains an even number of yarns, at least 6 at intervals of 4, forming two identical threads of pauropoda - front and back with an odd number of threads, not less than 3. Within each pauropoda front warp threads are interwoven with whom aleteia on a duck.

Long main deck cover an odd number of weft threads, at least 3, and the corresponding warp front and back of paulapatton intertwined in antiphase to each other, forming on a duck reverse "mirror" symmetry axis relative to the longitudinal axis. Each pauropoda on the basis of there are two groups alternating one equally interwoven warp threads, shifted relative to each other along the base on the number of threads equal to half of rapport on a duck, and the number of equally interwoven warp threads in each group of pauropoda respectively equal to 0.25 Ro+0.5 and 0.25 Roand 0.5, where Ro- rapport weave in the warp.

Each weft rapport along a warp contains 2 full plain rapport, 0,5 Ry-1 the same paulapatton filling reps 0,5 Ry/0,5 Ryand 0.5 Ry-3 linen paulapatton located between rapsovye prorperty. The ratio of the linear density of warp and weft threads must be in the range of 1.8 to 4.0.

If necessary, increase the porosity of the fabric it is formed with gaps between polyrepertory equal to 1-5 mm

These distinctive features, each and every one the RA allows the fabric, having a minimum (not more than 4,0%) deformation by elongation in the range of operating loads (10% of the breaking), sufficient (not less than 4.5 kg/cm) bonding strength to the surface of the fabric with an elastomeric material, a high coefficient of coupling threads (not less than 5.0). To increase the porosity of the fabric between each paulapatton on the basis of the installed gap 1-5 mm

In Fig.1-9 shows the possible variations of the motif weave offer fabrics with design patterns from 6x6 to 14x14.

In Fig.1, 2, 3 above figures weave with repeats on the basis of 6 thread: 6x6; 6X10; 6x14.

In Fig.4, 5, 6 above figures weave with repeats on the basis of 10 threads: h; 10x10; h.

In Fig.7, 8, 9 above figures weave with repeats on the basis of 14 thread: h; h; 14x14.

The offered fabric is made from synthetic, preferably polyester or polyamide yarn on the Shuttle, microcentric or rapier weaving mills, equipped samoobrazovanie carriage 6 or more shafts with repeats on a duck from 6 to 14. When filling fabric on looms in the tooth Byrd sneaks half of rapport - 3, 5, or 7 threads. If necessary, obtain tissue with clearances between the main polyrepertory equal to 1-5 mm, PROPARCO in anonymi rubikovej polyrepertory.

To confirm the technical result of the invention were produced experimental tissue of the proposed design. Main technical characteristics of the tissue analogues and tissues of the proposed structures are given in table. 2.

Experimental tissue samples t-190 MA with a positive result tested at JSC "jaroslavrezinotehnika" in the manufacture of rubber running tracks to the snowmobile "Buran" and "Taiga" and fabric TLC-300-I also tested positive at the Moscow plant "RTI - Rubber in the manufacture chetyrehpolozyj conveyor belts of the type"2-STS". Test results fabric t-190-MA and TLC-300-I is recommended for industrial application. On the fabric of the t-190-MA and TLC-300-I, agreed and approved by the technical conditions of JSC "NIIT" THE 8378-25-00302379-2001.

Claims

1. Technical fabric under polymer coating containing synthetic basic and weft threads made rubinowy weave with a fixed blade main pastrami, characterized in that the rapport on the basis contains an even number of yarns, at least 6 at intervals of 4, forming two identical threads of pauropoda - front and back with an odd number of threads,processes mathematical dependencies: 0,5 Ry/1+1/1 (0,25 Ry-0,5), where Ry- rapport weave on a duck, with a long main deck cover an odd number of weft threads, at least 3, and the corresponding warp front and back of paulapatton intertwined in antiphase to each other, forming on a duck reverse mirror axis of symmetry relative to the longitudinal axis, each pauropoda on the basis of there are two groups alternating one equally interwoven warp threads, shifted relative to each other along the base on the number of threads equal to half of rapport on a duck, and the number of equally interwoven warp threads in each group of pauropoda respectively equal to (0,25 Ro+0.5) and (0,25 Ro-0,5), where Rabout- rapport weave on the basis of each weft rapport along a warp contains 2 full plain rapport, (0,5 Ry-1) the same paulapatton filling reps 0,5 Ry/0,5 Ryand (0,5 Ry-3) linen paulapatton located between rapsovye prorperty, the ratio of the linear density of warp and weft threads is in the range of 1.8 to 4.0.

2. Technical fabric under polymer coating on p. 1, characterized in that the alternating front and back

 

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