Method and apparatus for retaining and cutting yarns

Abstract

PURPOSE: A knitting-yarn holding and cutting method and a device are capable of miniaturizing a carriage because a knitting cam is used on driving of a cutter bar and a hook bar, getting an enough advance and retreat stroke because the advance and retreat stroke of the cutter bar is increased by a cam for setting stitch, holding and cutting knitting-yarn in proper time, holding the knitting-yarn on the hook bar selected precisely and cutting the knitting-yarn with the cutter bar. CONSTITUTION: A knitting-yarn holding and cutting method is as follows: arranging many needles(47) on a needle bed(2) of a flat knitting machine; traveling a carriage(38) in a length direction of the needle bed; driving the needle by using a knitting cam(39) set on the carriage; supplying knitting-yarn from a yarn feeding inlet(46) interlocked with the carriage to the needle to form a course of knit fabric; protruding maximally the needle from the needle bed for knitting; changing an interlocking timing of the yarn feeding inlet into the top position of the knitting cam protruding maximally the needle when the knitting-yarn is held and cut; driving a cutter bar(27) and a hook bar(7) with the knitting cam to protrude the cutter bar and the hook bar from the needle bed and to be inserted into the needle bed; and then holding and cutting the knitting-yarn which is not used on weaving a next course. The knitting-yarn holding and cutting device comprises: the needles; the needle bed; the carriage; the knitting cam driving the needle; the yarn feeding inlet which is interlocked with the carriage, supplying the knitting-yarn into the needle; an interlocking-position switching device protruding maximally the needle from the needle bed for knitting, setting an interlocking-position of the yarn feeding inlet to the carriage in accordance with a middle position inserting the knitting cam and switching the interlocking-position in accordance with the top position of the knitting cam protruded maximally the needle from the needle bed for holding and cutting the knitting yarn; a holding and cutting selection device capable of selecting a working condition or a non-working condition; and an insertion selecting device working the knitting cam on the cutter bar and the hook bar, inserting the hook bar more and more, holding the knitting-yarn and inserting the cutter bar more and more to cut the knitting yarn.

Description

technical field [0001] The present invention relates to the knitting of a predetermined course when using a variety of knitting yarns on a flat knitting machine to complete the knitting of a prescribed course, using a needle hook bar to hold the knitting yarn that will not be used in the next knitting between the yarn guides, and using a cutter A knitting yarn holding and cutting method and device for cutting a bar between a portion held by a needle hook bar and a knitted fabric. Background technique [0002] So far, in the flat knitting machine, multiple kinds of knitting yarns, for example, knitting yarns of different colors are used alternately to knit jacquard structures of multiple colors or the like. In addition, for example, as a product, even if it looks like a single knitting yarn is used, thermally fused yarns, elastic yarns, etc. are sometimes used at fabric ends and the like. In order to be able to use a variety of knitting yarns, a plurality of yarn guides are ...

AI Technical Summary

Problems solved by technology

When the distance between the needle hook lever lifting cam 94 and the cutter retracting cam 95 increases, it will lead to the enlargement of the cam carriage

[0012] When the size of the carriage increases, a large space is required on both sides of the portion where the knitting needles 57 are installed in the needle bed 52, the length of the needle bed 52 increases, and the flat knitting machine also becomes larger.

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