Sheep shearing unit of knitting machine for tubular knitting towel

Abstract

The invention relates to a shearing device of a circular towel knitting machine. The front end of a sinker is provided with a thinner blade to form a yarn cutting knife; a through hair cutting opening is arranged at a proper position at the top of a wire raising needle; when a knitting needle hook draws yarns to knit a towel cloth cover, a hair loop is formed in a groove of the wire raising needle; the yarn cutting knife is moved forwards to make the blade penetrate into the hair cutting opening of the wire raising needle and to cut the hair loop yarns on the wire raising needle, so that the operations of knitting a hair loop cloth cover by the knitting needle hook and shearing are finished at the same time, wherein the blade angle of the yarn cutting knife is preferably 90 degrees. After the knitting needle hook draws yarns to knit a hair loop in the groove of the wire raising needle, the wire raising needle is dropped to pull down the hair loop in the groove; and then the yarn cutting knife is moved forwards to penetrate into the hair cutting opening of the wire raising needle so as to cut off the hair loop and achieve the aim of shearing.

Description

technical field [0001] The invention relates to a shearing device of a circular knitting towel knitting machine. Background technique [0002] Generally, the shearing operation of terry cloth is usually first knitted into terry cloth on a circular knitting machine, and then the cloth is placed on another shearing machine for shearing operation. This operation method is not only cumbersome, but also inefficient. is to trim off the top portion of the loop weave (see Figure 7-2 ), which not only causes loss of material, but also needs to be trimmed many times to achieve the tidy effect of the length of pile piles, so the cost is too high, which is very unsatisfactory. [0003] Therefore, in order to improve the above shortcomings, some people in the industry have developed a machine that can perform shearing operations while knitting terry cloth. For example, China Taiwan New Patent Announcement No. 208294, it is provided with an inclined plane below the groove of the raising ...

AI Technical Summary

Problems solved by technology

[0002] Generally, the shearing operation of terry cloth is usually first knitted into terry cloth on a circular knitting machine, and then the cloth is placed on another shearing machine for shearing operation. This operation method is not only cumbersome, but also inefficient. is to trim off the top portion of the loop weave (see Figure 7-2 ), not only causes loss of material, but also needs to be trimmed many times to achieve the neat effect of looped pile and equal length, so the cost is too high, which is not ideal

[0003] Therefore, in order to improve the above shortcomings, some people in the industry have developed a machine that can perform shearing operations while knitting terry cloth. For example, China Taiwan New Patent Announcement No. 208294, it is provided with an inclined plane below the groove of the raising needle. The knife blade cuts off the old loop under the groove while the raising needle rises and the knitting needle hooks the yarn to weave a new loop, so as to achieve the purpose of shearing. Although this method can achieve the effect of shearing, however The yarn has a certain degree of toughness, and it is easy to wear the blade during operation, so it cannot be replaced frequently after long-term use. There are also some manufacturers who have developed two pieces of sliver sheets with different structures, such as China Taiwan New Patent Announcement No. 235625 patent, it is to utilize two raw gram sheets to advance and press the yarn while cutting off the old loops on the raising needles in the mode of clipping, to achieve the purpose of shearing, although this kind of structure is also It can achieve the effect of shearing, but because two different structures of sliver have to be placed in the sliver slot sequentially, the pre-work before knitting fabric is very troublesome, and the precision control of the sliver is difficult and timely. Its structure is relatively complicated, and it is easy to cause malfunction or cannot completely cut off the long and short hairs of "missing cut".

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