Electronic warp feeding system of warp knitting machine

Abstract

The invention relates the warp knitting machine electronic let-off system, comprising main motor(1), chief axis encoder(2), computer system(4), converter(5), controller(6), motor(7), warp let-off box(8) and mechanical gearing system(9). The computer system (4) controls the main motor by converter (5). On the base of real-time rotary speed detection signal, the computer enters processing parameter and sends active instruction. The invention has the advantages of high-speed property, exact and steady warp run-in, easy adjustment, short operation processing time, and adopting multiple speed and position reaction to realize optimum dynamic adjustment.

Description

technical field [0001] The invention relates to an electronic system, in particular to an electronic let-off system of a warp knitting machine. Background technique [0002] At present, the let-off control system of many domestic warp knitting machines is a mechanical let-off control system, which controls the let-off amount through a series of mechanical structures, but the efficiency of using the mechanical structure to control the let-off amount is extremely low, and its mechanical control The cloth and other products woven by the let-off system have great limitations in terms of precision and flexibility. Most of the products are medium and low-end products, which are far from meeting the requirements of the current industrial pursuit of high-quality products. In order to obtain better quality products, some units have also carried out research and development of electronic let-off control systems, such as using programmable logic controllers to control the let-off volum...

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Problems solved by technology

[0002] At present, the let-off control system of many domestic warp knitting machines is a mechanical let-off control system, which controls the let-off amount through a series of mechanical structures, but the efficiency of using the mechanical structure to control the let-off amount is extremely low, and its mechanical control The cloth and other products woven by the let-off system have great limitations in precision and flexibility. Most of the products are middle and low-end products, which are far from meeting the current industrial requirements for high-quality products.

In order to obtain better quality products, some units have also carried out research and development of electronic let-off control systems, such as using programmable logic controllers to control the let-off volume and tension, but the controller algorithms of these electronic let-off systems are simple. The speed is also relatively slow, and because it is an open-loop system, it is difficult to control the let-off amount in real time, and it cannot achieve a good control effect

There are already some machines including electronic warp let-off system in foreign countries, such as the independent electronic warp let-off system developed by Germany's Begra Company, which uses a stepping motor, and its speed control adopts open-loop control, but it is not suitable for high-speed, high-precision requirements

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