Fall plate movement device of multi-bar warp knitting machine

Abstract

The invention discloses a fall plate movement device of a multi-bar warp knitting machine. The device comprises a connecting rod, a fall plate guide sleeve and a fall plate mounting base, wherein the upper end of the fall plate mounting base is connected with the lower end of the connecting rod in a rotary manner and the lower end of the fall plate mounting base is fixedly connected with a fall plate. The device also comprises an eccentric wheel, an eccentric sleeve connecting rod, a swing rod, a first connecting rod, a second connecting rod and a rotating shaft, wherein the eccentric wheel is fixedly mounted on the rotating shaft; one end of the eccentric sleeve connecting rod is sleeved on the eccentric wheel and the other end is connected with the right end of the first connecting rod in a rotary manner; the body of the eccentric sleeve connecting rod is connected with the upper end of the swing rod in a rotary manner; the lower end of the swing rod is mounted on a warp knitting machine frame in a rotary manner; the right end of the second connecting rod is connected with the left end of the first connecting rod in a rotary manner and the left end of the second connecting rod is connected with the upper end of the connecting rod in a rotary manner; the body of the second connecting rod is mounted on the warp knitting machine frame in a rotary manner; and the rotating shaft is mounted on the warp knitting machine frame in a rotary manner and is driven by an oil tank spindle to rotate. The device can well meet the requirements of the yarn pressing process under the conditions of larger yarn pressing depth and shorter yarn pressing time, can adapt to high speed knitting and has a simple structure.

Description

technical field [0001] The invention relates to a knitting mechanism of a warp knitting machine, in particular to a yarn pressing plate moving device in the knitting mechanism of a multi-comb yarn pressing type warp knitting machine. Background technique [0002] For warp knitting machines with a yarn pressing board, controlling the yarn pressing stage of the yarn pressing board, that is, the movement and speed of the pressing down stage, especially the yarn pressing speed is the key to meeting the requirements of the yarn pressing process and ensuring product quality. In the case of deep and short yarn pressing time, if the yarn pressing speed is small, the yarn located in the needle hook of the groove needle cannot be pressed down on the needle bar of the groove needle in time, so that it cannot meet the requirements of the yarn pressing process and cause quality accident. [0003] The yarn pressing plate moving device of the existing pressing type warp knitting machine, ...

AI Technical Summary

Problems solved by technology

The yarn pressing board moving device with this structure, on the one hand, because the average speed of the pressing down and rising of the yarn pressing board is basically equal during weaving, and the yarn pressing speed is relatively small, so the yarn pressing depth is deeper and the yarn pressing time is longer. In the shorter case, the yarn positioned in the hook of the grooved needle cannot be pressed down on the needle bar of the grooved needle in time, thereby failing to meet the requirements of the yarn pressing process; on the other hand, due to the connection of the parallelogram mechanism in the moving The bar moves in translation, and the yarn pressing plate also moves in translation when it is pressed down, so that the yarn pressing plate will interfere with the bars behind it during weaving. Therefore, on such a warp knitting machine, some bars are generally used The structural arrangement of the swinging bars behind the yarn pressing plate enables the bars behind the yarn pressing plate to swing when the yarn pressing plate is pressed down to avoid interference with the yarn pressing plate; however, due to the swinging movement of each bar It needs to be completed by corresponding bar swinging devices, so the structure of the yarn pressing plate moving device is complicated, especially when the number of bars in the multi-bar warp knitting machine is more than 18, due to the large number of swinging bars in this part, Heavy weight, so not suitable for high-speed weaving

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