SU1395706A1 - Method of feeding weft yarn in loom with gripping shuttles - Google Patents

Abstract

The invention relates to the textile industry, can be used on shuttleless weaving machines, and reduces the breakage of weft yarns. The bobbin I at the beginning of the weaving yarn is mounted on the holder to the extreme forward position I with respect to the thread-conducting eye 2, determined by the ratio of the distance from the front end of the bobbin 1 equal to 0.23-0.32. In this reel. I set that

Description

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The CMM in such a way that its axial line coincides with the axial line of the eye 2. The weft thread is reeled from the reel through the eye of 2, then passes through the guide eye of the weft brake 3 and the compensator 4. After the guide eye 5, the weft thread is held by the sponge of retractor duck 6 until it is captured by a clamping shuttle. The reel I is in position I until it triggers to a ratio of the specified parameters, equal to 0.37, and then the reel is moved to the rearmost position II relative to the eye, defined by the ratio of these parameters equal to 1.44, and within the ratio of these parameters 1.44-1.40 reel periodically move towards the peephole 2 with a pitch of 10-30 mm and when the ratio of the specified parameters is reached 1.40 reel is left in this position until the end of its operation, I il.

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The invention relates to the textile industry and can be used on shuttleless weaving flocks.

The aim of the invention is to reduce the breakage of the weft threads on a loom.

The drawing shows a flowchart of the feed of the weft yarn on a loom with a clamping shuttle.

The method of feeding the weft yarn on a weaving machine is as follows.

The reel at the beginning of the weft yarn is installed on the package holder to the extreme forward position I with respect to the threading eye 2, determined by the ratio of the distance from the front end of the reel to the threading eye 2 to the diameter of the front end of the reel 1 equal to 0.23- 0.32. At the same time, the bobbin 1 is installed in such a way that its axial line coincides with the axial line of the thread-conducting eye 2. The needle thread removed from the reel is threaded through the peephole 2, then passes through the guiding eye of the weft brake 3 and the compensator 4. After the peep hole 5 the weft thread is held by the lips of the returning weft 6 until it is gripped by the clamping hook. The reel 1 is in position I until it triggers to a ratio of the indicated parameters, equal to 0.37, and after that, the reel is moved to the rearmost position II with respect to the eye, defined by the ratio indicated - HbDC parameters equal to 1.44, and within the ratio of the indicated parameters 1.44-1.40, the reel is periodically moved towards the peephole 2 with a step size of 10-30 bar and, when the ratio of these parameters is reached, 40 the reel is left in this position until the end of its operation. When the reel is fully activated, it is replaced with a new one and the process is repeated in the same sequence.

Full cycle of package movement as the weft yarn is produced

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It is driven by a special mechanism (not shown), which is driven from the main shaft of the weaving machine.

Movement Design

Packing in comparison with accumulators does not complicate maintenance of the loom, does not require the use of additional power for the drive. 5 As a result of the adjustment performed, the effect of equalizing the tension and reducing the breakage of the weft yarn is achieved.

Efficiency of use

35

The ba is provided by reducing the breakage, weft yarns, increasing equipment productivity and quality of the fabric produced.

Claims (1)

Invention Formula The method of filing the weft yarn on a loom with a clamping shuttles includes the release of the thread from the reel adjusting the distance from the reel to the threading eye as the reel triggers its axial movement, characterized in that, in order to reduce the weft yarn backing, the reel is set to its extreme front position relative to the eye, determined by the ratio the distance from the front end of the reel to the thread-conducting eye to the diameter of the front end of the reel is 0.23– 0.32, and the reel in this direction until the ratio of the specified parameters is equal to 0.37, and then the reel is moved to the extreme rear position with respect to the eye, defined by the ratio of the said parameters equal to 1.44, and within the ratio of the specified parameters 1.44-1.40 the reel is periodically moved towards the ocellus with a pitch of 10-30 mm and when the ratio of the specified parameters I is reached, the reel is left in this position until the end of its operation.