SU668181A1 - Device for manufacturing rubberized metal cord fabric - Google Patents

Abstract

THE METHOD OF MAKING CUTTED METAL CORD PAINTING, in which steel cord cord coming from the spool rod is assembled with the help of wire guiding devices into an irregular canvas and cut it between the rolls of calenders sequentially from one side and the other, it is necessary to use a dorimeter between the rolls of calenders sequentially from one side and the other, and the distance of the dythyears is done between the rolls of the calenders sequentially from one side and the other, they are separated by a single dyes between 9 and 16 gates. , in order to improve the quality of the rubberized steel cord fabric with a dense pitch, the metal cord threads are assembled into two irregular canvases with the same number of threads in each, equal to half the number of threads in the finished fabric, and with a step between with one thread equal to twice the pitch in the finished canvas, one of the canvases is rubberized on one side, then the second canvas is placed on it on the non-rubberized side, the threads of the latter are placed in between the first stripe, and the assembled canvas is rubberized on the other side (Ls

Description

The invention relates to equipment for rubber industry plants and can be used in the manufacture of pneumatic tires.

A known method of manufacturing rubberized steel cord fabric in which steel cord coming from a spool is assembled in a horizontal plane into an irregular canvas and rubberized at the same time from the sides, passes between the rolls of the calender.

The disadvantage of the method is that it does not provide a web with a precise pitch.

yarns across the width of the web, since neither the metal cord in the gap between the rolls of the calender is fixed and under the action of the forces generated by the flow of rubber in the gap are mixed.

There is also known a method of manufacturing rubberized metal-cord fabric, in which metal-cord threads coming from the bobbin are assembled with the help of a shagona-directing device into an irregular canvas and are rubberized between rolls of cannons and landers subsequently from one side and the other.

The shortage of this method is that during rubberizing

steel cord fabric with a dense pitch distribution of threads in it, especially WifiH small danetre, violates the accuracy of the distribution of filaments in pitch and thereby reduces the quality of the finished fabric.

The aim of the invention is to improve the quality of rubberized steel cord fabric with dense pitch,. This goal is achieved by the fact that metal cord threads are assembled into two irresistible canvases with the same number of threads in 1 each equal to half the number of threads in the finished web, and with a pitch of yy equal to twice the pitch in the finished fabric, cut one of the canvases from one side, then The second canvas is placed on it from the non-rubberized side, the threads of the last s are spaced between the threads of the first one, and the collected canvas is cut from the other side.

FIG. 1 is a diagram of the process of wrapping metal cord fabric; figure 2 - steel cord with half the number of ny .tey; ia fig.Z - assembled non-intermeable steel cord fabric, rubberized on one side; Fig. A is a finished steel cord.

The method is carried out in the following way.

MeFallocord filaments I are fed from IP spools 7. The spools of the rnik 3 and are assembled into two irregular canvases A and 5 with the same number of filaments equal to half the number of filaments in the finished web. Moreover, the fabric 5 may have one thread less than the fabric 4. The fabric 4 is directed to the calender 6, and the fabric 5 - to the calender 7 In this case, the distance (step) between the wires of the metal cord in each of the fabrics

8 and 9 are set twice as large as the required pitch between the threads in the finished rborem cord fabric.

In the gap between the rolls of the calender 6, rubberization of the threads of irreducible rollertna 4 is made on one, for example, on the lower side (see Fig. 1 and.). The roller 10 of the calender 6 can be made with annular step grooves a for metal-cord threads 1 of the web 4. The distance between the grooves and also is increased twice as large as the required spacing between the threads in the rubberized canvas web. As a result of this, the grooves a can be filled with a much greater depth than if the distance between the grooves were equal to the step between the threads in the finished web. Then, on the one side rubberized web 4 with the help of the step roller 11, the metal cord threads of the web 5 are placed on the cross-sided side, located last between the threads of the web 4 (see Fig. 3), and form an irregular canvas 1 .. Web 12 with a pitch between the threads, equal to the desired step between the threads in the finished canvas, is passed between the rollers 13 and 14 of the calender 7, where the other (in this case, the upper) side is rubberized. The canvas 12 and the final molding of the rubber to obtain a rubberized steel cord I5 with the required gauge and pitch.

This method makes it possible to manufacture rubberized metal cord cord with a precise pitch between the threads at any density and diameter of the threads, thus increasing the quality of the fabric obtained, excluding the possibility of mixing and overlapping the threads.

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Claims (1)

METHOD FOR PRODUCING A RUBBERED METAL CORD FABRIC, in which metal cord yarns coming from a creel pulp are collected using step-guiding devices into an error-free cloth and rubberized between calender rollers sequentially on one or the other side, which is characterized by the fact that, in order to improve the quality of rubber-coated metal cord in tight increments, metal cord yarns are collected in two canvasless webs with the same number of threads in each, equal to half the number of threads in the finished fabric, and in increments between with threads equal to twice the step in the finished fabric, one of the paintings is rubberized on one side, then the second fabric is laid on it from the non-rubberized side, placing the threads of the latter in between with the threads of the first fabric, and the assembled fabric is rubberized on the other side.