Yarn nozzle inverting control mechanism for applique shuttle box

Abstract

The invention relates to a yarn mouth reversing control mechanism of a mosaic shuttle box, which comprises a reversing control plate, a bottom board and a yarn mouth component, wherein the yarn mouth component is connected on the lower portion of the bottom board, a directive wheel on the yarn mouth component is arranged in a guide slot hole on the bottom board, the reversing control plate is hinged on the upper portion of the bottom board, the yarn mouth reversing control mechanism also comprises a reversing drive board, wherein the reversing drive board is arranged on the upper portion of the reversing control plate and connected on the bottom board in a mode that the reversing drive board can slide leftwards and rightwards, the left end and the right end of the reversing control plate exceed the left side and the right side of the bottom board when the reversing drive board slides, and when the reversing drive board slides to the two ends, a guide face on the lower portion is combined with the slot wall of the guide slot hole to form a channel for the directive wheel to slide. The yarn mouth reversing control mechanism has the advantages that the position state after reversing is very stable and reliable, special limited springs are not needed to arrange on two sides of the reversing control plate to control the position state of the reversing control plate, the working resistance of components are reduced, and the size of the whole shuttle box is reduced.

Description

technical field [0001] The invention relates to a computerized flat knitting machine, in particular to a yarn feeder reversing control mechanism for an intarsia shuttle box. Background technique [0002] When weaving intarsia patterns, according to the computer program, the shuttle boxes that guide the yarns of different colors sequentially feed the yarns to the knitting needles on the needle bed. Therefore, a number of shuttle boxes are arranged on the shuttle bar to guide the weaving yarns of different colors to meet the color requirements of the intarsia pattern. The shuttle box participating in weaving is driven by the shuttle box drive mechanism installed on the machine head, and the random head moves along the shuttle bar. The yarn feeder at the lower end of the moving shuttle box is in the lower position so as to be close to the knitting needles, and the knitting needles for intarsia knitting needle for yarn feeding. When intarsia knitting is completed, the shuttle ...

AI Technical Summary

Problems solved by technology

[0007] The yarn feeder reversing control mechanism of the above-mentioned intarsia shuttle box has the following deficiencies: First, the structure of the shuttle box is relatively complicated, such as a pair of anti-collision plates hinged symmetrically on both sides of the bottom plate and its corresponding return mechanism, This makes the lateral size of the shuttle box larger, which affects the number of shuttle boxes placed on the shuttle bar of the entire flat knitting machine, so that it cannot meet the requirements of more complicated intarsia pattern weaving.

Second, the manufacturing structure of the reversing control plate is relatively complicated, such as the limit spring 121 protruding from both sides, the manufacturing process is complicated, the production cost is high, and the working resistance of the part will be increased, and the transverse dimension of the part will also be increased. , which restricts the possible further reduction of the lateral dimension of the shuttle box; in addition, the upper end of the part is bent in order to allow the tongue surface I to pass through, which increases the process of part processing and thus increases the cost

Third, the stability of the positioning state of the reversing control plate 120 is guaranteed by the positioning of the very small arc surfaces 124, 125 on the limit spring 121 on the limit pin 122. The contact area is small, and once there is some impact or vibration, it is likely to The arc surface will throw off the limit pin 122, and the stability and reliability of the positioning state will be kept poor, and once the reversing control piece 120 changes the original positioning position, it will affect the normal operation of the whole shuttle box

Fourth, the tab is a two-step stepped structure containing tab surfaces I and II, which restricts the width of the tab, which is relatively narrow, which increases the accuracy of the reciprocating movement of the tab.

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