SU368915A1 - METHOD OF MAKING THE GRID - Google Patents

Description

The method of making a wire mesh is known, which includes the steps of obtaining right and left winding spirals and the subsequent twisting of spirals.

The main disadvantage of this method is low productivity.

In the proposed method, this disadvantage is eliminated due to the fact that before winding the helix of one direction of the winding is placed in one plane in parallel with each other with a step equal to the distance between the grid centers, the obtained spiral blocks of one winding direction establish one relative to the other at a given angle, and the winding produced by rotating all the spirals of one block around their axes and simultaneously moving them in axial direction by a distance equal to half the grid step until the first turns of the spiral are engaged Lei of different blocks, after which the said coils are cut and cut off the ends of them with one another.

The method is illustrated in FIG. 1, 2 and 3. According to the Method, two blocks of spirals 1 and 2 are made with different winding directions. Each block was mounted in parallel rows with a step equal to the distance between the centers of the links in the finished grid. Working ends 3 P1 4 spirals of both blocks are directed towards each other.

the free ends 5 and 6 of the spirals 1 are turned upwards and a certain angle (Fig. 1), and the longitudinal axes of the spirals of each block are parallel to each other and displaced in the transverse direction relative to the spirals of the second row by an amount equal to half the distance between the axes of the adjacent spirals each block (Fig. 2), i.e. half step.

The number of spirals in a row of each block may be determined by technological or structural considerations (e.g., overall). However, it is most convenient to use the number of spirals in the block, equal to

the number of links in the row of the finished net, since this excludes the operation of making the net from individual pieces.

When all the spirals of one block are rotated one turn around their axis in the corresponding direction, each of these spirals moves forward by the pitch of the spiral. The first turn 7 of each spiral enters the inside of the second block, interlocking with the first turns 5 of two adjacent spirals

this unit, as shown in FIG. 2. Thereafter, the first turns of the first helix block are cut off and the ends of the turns are cut one to another, so that flat links are formed, which fall down and hang on

the first turns of the second block, forming the first

grid 9 (Fig. 3). Then, the described operation is performed with coils of the second, row, resulting in two rows of grid links hanging on the coils of the first block, after which the cycle is repeated a certain number of times, depending on the grid required.

Subject invention

A method of making a wire mesh comprising the steps of obtaining right and left spirals and the subsequent twisting of spirals, characterized in that, in order to increase productivity, before twisting the spiral, one lay of the twist in one plane parallel to each other with a step equal to the distance between the centers the grids obtained by the blocks of the spirals of one twist direction are set relative to the other under a predetermined fragrance, and the twist is produced by rotating all the spirals of one block around their axes and simultaneously moving them in the axial direction by a distance equal to one half of the grid step until the first turns of the spirals of different blocks adhere, after which the said turns are cut and brought together with each other.