SU1353852A1 - Method of producing plaited tubular articles - Google Patents

Abstract

The invention relates to methods for manufacturing large-sized hollow woven articles, can be used in the manufacture of large-diameter pipes. From a fibrous web material with interlaced layers, and allows to obtain products with an interlayer bond along the height of the tube. The method of obtaining such a product consists in interlacing two groups of threads on the surface of a cylindrical mandrel by moving them in a closed sinusoidal direction in opposite directions around the circumference with the formation of nodal points of transition of the threads, while laying an additional group of threads of the main threads along a closed sine wave along the mandrel. 13 il. with joint venture from 00 joint venture

Description

The invention relates to the manufacture of large-sized hollow wicker and goods and can be used in the manufacture of products based on fibrous materials and synthetic resins, pitches, pyrocarbon, etc., for example, in the manufacture of large-diameter pipes from ribbon fiber material with interwoven layers ,

The purpose of the invention is to obtain products with an interlayer bond along the height of the tube.

Fig, 1 shows the initial position of the threads; FIG. 2 shows the working position of the filaments (phase A); fig. 3 shows the movement of dressing yarns (phase B); 4 shows the movement of the concentric surfaces of the filaments (phase B) in two mutually opposite directions (clockwise); on fig.Z - movement of the radial rows of threads to the center and from the center (phase D); Fig. 6 is the same as the interlaced yarns (phase D); 7 - movement of the concentric surfaces of the filaments (phase E); on fig.Z - movement of the filaments in the radial direction to the center and from the center (phase G); Fig. 9 shows the movement of dressing yarns (phase 3); Fig. 10 shows the trajectory of movement of the threads; on fig. II - 9, the product is perpendicular to the axis; on Fig and 13 - the product, the cross section along the generatrix,

In the initial position (FIG. 1), the threads are located close to each other. In the working position (Fig. 2), the filaments forgive the radial direction from the center to one concentric layer, which is equivalent to the displacement of the radial rows of threads with even threads in the radial direction from the center to one concentric layer. In this case, in phase A, the odd yarns of the first concentric layer of the initial position

10 appear on the first concentric surface, the odd yarns of the second concentric layer and the even yarns of the first concentric layer on the second concentric surface, the even 15 yarns of the third concentric layer and the even yarns of the second concentric layer on the third concentric surface, the odd yarns of the fourth concentric layer and even threads

2Q of the third concentric layer - on the fourth concentric surface, even threads of the fourth concentric layer - on the fifth concentric surface.

25 B phase B (FIG. 3), the thread yarns from the outer surface are moved to the inner surface between the radial rows, and the thread yarns from the inner surface (if there are

30 and Necessity of external and internal binder yarns, i.e. with double-sided ligation, are moved to the outer surface. As a result, the strand yarns encompass 75 the entire thickness of the item cell element.

In phase B (Fig. 4), the interweaving yarns are stationary and the yarns of odd concentric surfaces move.

relative to each other are shifted one clockwise by an angle of 1 360: n, the concentric layer in the radial direction. The counting of the concentric layers of the filaments is carried out from the outer layer (from the outer concentric surface).

We take as the odd radial rows of a thread with an odd number of a significant digit to the point in the initial position. In concentric layers we accept layers of threads in the initial 50 strip are moved clockwise, with even where n is the number of radial rows, i.e. on the adjacent radial rows, and the threads of even concentric surfaces move counterclockwise to the 45th arrow by the same angle i /. In this case, odd yarns of odd concentric layers move from odd radial rows to adjacent even and even yarns of even concentric layers

We carry out the counting and counting from the outer layer. In the working position, we take it as concentric surfaces and count it from the outer surface.

To move the threads from the initial position to the working radial rows of threads, they are displaced relative to each other by one concentric layer. For example, rows with odd threads shift the radial direction from the center by one concentric layer, which is equivalent to shifting radial rows of even-numbered threads radial direction from the center to one concentric layer. In this case, in phase A, the odd yarns of the first concentric layer of the initial position

on the first concentric surface, odd yarns of the second concentric layer and even yarns of the first concentric layer on the second concentric surface, odd yarns of the third concentric layer and even yarns of the second concentric layer on the third concentric surface, odd yarns of the fourth concentric layer and even yarns

the third concentric layer is on the fourth concentric surface, the even threads of the fourth concentric layer are on the fifth concentric surface.

In phase B (FIG. 3), the binder threads from the outer surface are moved to the inner surface between the radial rows, and the binder threads from the inner surface (if there are

and the need for outer and inner binder yarns, i.e. when double-sided ligating) is transferred to the outer surface. As a result, rewinding threads cover the cell element to the full thickness of the product.

In phase B (Fig. 4), the interweaving yarns are stationary and the yarns of odd concentric surfaces move.

 clockwise at an angle of 1 360: n,

50 is moved clockwise; with where n is the number of radial rows, i.e. on the adjacent radial rows, and the threads of even concentric surfaces move counterclockwise to the 45th arrow by the same angle i /. In this case, odd yarns of odd concentric layers move from odd radial rows to adjacent even and even yarns of even concentric layers

five

radial rows to neighboring odd ones. Odd yarns pass over the even yarns of the same concentrated layers.

In phase G (FIG. 5), odd radial rows of threads move to the center on one concentric surface (on adjacent concentric surfaces), and even from the center to adjacent concentric surfaces. However, even threads move between odd and moved to more distant 6m center of concentric surface.

In phase D (bzig.b), the sash yarns are moved from the inner surface to the outer one, and from the outer surface to the inner one, with cell elements covered.

In phase E (FIG. 7), the interstitial threads are stationary, and the threads of odd concentric surfaces are moved counterclockwise by the angle if (ka and in phase c), and the even concentric surfaces are moved clockwise by the same angle q. In this case, the odd yarns pass under the even yarns of the same concentric layers.

In phase G (Fig. 8), the radial rows move to the center and from the center by an amount and in directions similar to phase D (Fig. 5). Here, odd threads of the same name of concentric surfaces of the same name appear on more distant concentric surfaces with respect to even ones.

In phase 3 (FIG. 9), the interweaving yarns from the inner surface are moved to the outer one, and from the outer one to the inner one.

Those. the directions of rotation of the same concentric surfaces of the threads are constantly changing (alternating) clockwise and counterclockwise, the direction of movement of the like

/V.W

Nl

THEM.

nn

the radial rows are repeated, and the direction of movement of the binder yarns is constantly changed (alternated).

As a result of repeated repetition of 1 CLOCK, for example, C, D, D, E, F, 3, the product is produced. Operations in phases A and B are preparatory.

Fibrous fillers in the form of tapes, tapes, tows, etc., can be used in the manufacture of large-sized products, since with a tubular product diameter of 1 m on a perimeter of 3.14 m, 3140 should be placed in one layer yarns with a diameter of 1 mm, and ribbons with a pigirin 10 mm - 314, which is most appropriate for the implementation of the method.

Claims (1)

Invention Formula A method for producing a braided tubular product consisting in interlacing on the surface of a cylindrical mandrel of at least two groups of threads by moving these groups along a closed sinusoid in opposite directions around the circumference of the mandrel with the formation of nodal points of transition of the threads, characterized in that In order to obtain a product with an interlayer connection along the height of the tube, an additional group of threads is laid with their movement through the nodal points of transition of the main groups of threads along a closed sinusoid along o Rawka. Yang H.W nn nn nn n.n. THEM N.N nn and, and n, and FIG. 2 1353852 //.// nn n, n nn N.N vm aw V.N V.N V.N in, n V.N IM I.N. nn nn  communication paths  rantory threads i zo layer Fi.p Sh t ss sh t Fy Editor C, Baker Fi / y / j Compiled by A. Golant Tehred M. Khodanich Proofreader A.Obruchar Order 5675/27 Circulation 401 Subscription VNIIPI USSR State Committee for inventions and discoveries 113035, Moscow, Zh-35, Raushsk .ab. 4/5 Production and printing company, Uzhgorod, st. Project, 4