A mixed flat yarn and round yarn feeding system for warp knitting machines

Abstract

The invention discloses a flat yarn and round yarn mixed yarn supply system for a warp knitting machine and belongs to the technical field of warp knitting equipment. The flat yarn and round yarn mixed yarn supply system for the warp knitting machine is provided to realize combination of a production-supply integrated flat yarn supply system and a warp beam segmented round yarn supply system, so that an industrial packaged polyolefin film material which is relatively easily obtained can be selected directly in a production process to serve as a start of material supply for flat yarn supply production of the warp knitting machine, production devices for film cold drawing, broken film slitting and baking and flat yarn drawing are integrated and cooperatively work with conveying devices for flat yarn synchronous conveying, flat yarn breaking detection and single flat yarn tension compensation, two symmetrical yarn paths of warp flat yarn and weft knitting flat yarn are provided, the production-supply integrated flat yarn supply system with high integration of online production and supply of single flat yarn is formed, warp knitting process of the flat yarn is shortened, synchronous supply of warp knitting round yarn is provided, and developing capacity and production efficiency of the warp knitting machine for novel warp knitting products are improved greatly.

Description

technical field [0001] The invention relates to a yarn supply system for a warp knitting machine, in particular to a mixed flat yarn and round yarn yarn supply system for a warp knitting machine, belonging to the technical field of warp knitting equipment. Background technique [0002] Warp knitting technology, with its unique loop forming form and the knitting characteristics of various large-scale mesh structures, makes warp knitting machines with low gauge and large gauge suitable for the production of industrial raw materials such as sunshade nets, woven bags, and fishing nets. The field can be rapidly expanded and applied. Especially with the emergence of a variety of high-strength round filament single yarns of chemical fibers, and the multifunctional film materials compounded by polyolefin resins and various anti-aging materials, after heating, stretching, cutting or spinning, and then through a special flat The flat filament single yarn provided by the warping machi...

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Problems solved by technology

[0004] The high-speed and efficient weaving form of warp knitting largely depends on its good warping and yarn supply before weaving. For the round yarn supply of warp knitting machines, due to the acquisition of single yarn raw materials, warping equipment, The warping process is basically the same as the acquisition of ordinary warp knitting yarn raw materials, warping equipment and process, so the round yarn supply of the warp knitting machine can adopt the traditional pan-head segmented yarn supply; but for the flat yarn supply of the warp knitting machine Yarn, because flat yarn raw materials are usually difficult to obtain directly from the market in the form of ordinary yarns, if the traditional method is also used to feed the yarn in segments, the process flow is designed in accordance with the sequence of yarn separation, warping, and weaving, and the weaving manufacturer It is necessary to purchase a series of processing equipment from plastic film splitting and cutting, flat wire heating and drawing, flat wire warping machine, etc., resulting in too long production line, many types of equipment, large floor space, high input cost, and the cost of polyolefin film materials. Raw material ratio and production process are relatively complicated, and most weaving manufacturers are not familiar with it and it is difficult to master it. Therefore, most weaving manufacturers are not willing to choose to start with the production of polyolefin materials, nor are they willing to choose longer production lines and purchase too many types of flat yarn pre-weaving and weaving equipment. Thereby greatly restricting the industrialized production and promotion of such warp knitting products, and the technical means to solve this problem is to provide effective flat yarn single yarn and round yarn single yarn mixed yarn supply system solutions for warp knitting machines

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