Dropped stitch prevention guide needle block for warp knitting machine

Abstract

The invention discloses a dropped stitch prevention guide needle block for a warp knitting machine. The guide needle block comprises a substrate (1) and guide needles (2) mounted on the substrate (1).The head of each guide needle (2) is provided with a guide hole (2-1), the bottom surface of a head portion of each guide needle (2) is provided with a groove (2a), a horizontal plane (2b), a downwardly-inclined slope (2c) or an inwardly-concave curved surface (2d). The guide needle block has advantages that in loop knitting, yarns penetrate the guide holes to be controlled to pass through the bottom surfaces of the head portions of the guide needles, namely the yarns only pass below the head portion of the guide needles, and accordingly the yarns are prevented from slipping to lateral sidesof the head portions of the guide needles, dropped stitches are effectively prevented, reliability in yarn laying is remarkably improved, and loop knitting quality is remarkably improved.

Description

technical field [0001] The invention relates to a knitting mechanism of a warp knitting machine, in particular to a guide needle block in the knitting mechanism of a warp knitting machine. Background technique [0002] There are three kinds of bar commonly used in the knitting mechanism of existing warp knitting machines: the first is the ground bar evenly filled with guide needles, which is used to form the ground weave or weft insertion of the fabric; Card combs are used to form changing ground textures or deformed textures; the third type is floral combs arranged at intervals to form complex flower patterns. Regardless of the model, the ground bar is essential, and the accuracy of its motion is critical to the formation of the fabric. The yarn guide block in the ground bar guides the yarn to realize lapping of yarn on the back of the needle for loop knitting . [0003] see Figure 10 Shown is a schematic structural view of the existing yarn guide needle block, which inc...

AI Technical Summary

Problems solved by technology

[0004] The existing guide needle block has the following defects in the use process: that is, for the general process, the existing guide needle block can meet the requirements of use, but for the process with higher requirements, such as the process with a large lateral movement ( traverse more than 20 needles), the yarn 13 is easy to slide to the side of the head of the guide needle 12, such as Figure 11 As shown, in this way, the yarn 13 will be laid on the needle head of the grooved needle 14, resulting in missed stitches, which will result in a limited knitting speed of the machine, a low operating rate, and a decrease in knitting quality

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