JPS5933690B2 - Horn yarn manufacturing equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention provides a floating yarn that forms a horn that protrudes from the outer periphery of a yarn shaft, without increasing the twist, which is an essential requirement for forming the horn, to prevent collapse deformation, etc. The present invention relates to a device for efficiently producing horn yarn that is stabilized so as not to cause.

Conventional production of horn yarn mainly uses a ring design twisting machine, and the floating yarn that forms the horn that protrudes around the yarn axis is highly twisted, and the floating yarn is supercharged and then twisted into a core. After twisting the yarn and twisting it together, a spiral-shaped knot is formed at irregular intervals by natural untwisting of a length roughly equivalent to the supercharging of the floating yarn, and then the presser yarn is A final twist is applied to stabilize the yarn by twisting it in the opposite direction to the first twist, thereby making the horn yarn acid-based.

However, as mentioned above, the floating yarn is strongly twisted, and this is caused by the supercharging of the floating yarn and the return twist rope within a certain length range, so the As the torque changes over time, the strength of the thin return twist of each yarn becomes irregular, which tends to cause yarn unevenness, and in addition, the strong twist can cause stains on the floating yarn, or the acid system can become tangled. There are drawbacks such as the formation of many knots, and in addition, when a floating yarn material with a high moisture content is used, the length of the heel portion changes and the length of the hem portion becomes irregular due to this change.

The apparatus of the present invention is intended to eliminate the above-mentioned drawbacks of conventional horn yarns.

FIG. 1 shows a known fancy yarn manufacturing apparatus used in the first and second aspects of the present invention.

This device guides the core yarn A, which is supplied at a constant speed from a core yarn supply device 1 consisting of a pair of core yarn supply rollers, through a guide pipe 2 to a twisting initial point 4, and then guides the core yarn A, which is supplied at a constant speed, from a core yarn supply device 1 consisting of a pair of core yarn supply rollers, to a twisting initial point 4, and a floating yarn supply system consisting of a pair of floating yarn supply rollers. A floating yarn B having a longer supply length than the core yarn A is supplied from the device 3 and guided to the starting point 4 for twisting. A false-twisting device 5 such as a false-twisting spindle is provided, which passes through the center hole 7 of the rotating hollow needle 6 and further passes the straight running part a between the initial twisting point 4 and the hollow needle 6. A heel thread bobbin 8 is removably fitted, a flyer 9 is freely rotatably provided at its upper end, that is, at the end that constitutes the entrance of the center hole 7 of the hollow needle 6, and is pulled by a winding roller 10. The structure is such that the acid system is wound up by the winding device 11.

The first and second aspects of the present invention are to supply the crimpable synthetic fibers B2 to the main yarn B1 of the floating yarn in a lined manner, and to insert the core yarn through the center hole 7 of the hollow needle 6 rotating in one direction. The untwisted yarn C, which is made up of floating yarns, moves between the false twisting device 5 and the winding roller 10 while rotating in the return direction of the false twist, and the yarn Ba is protruded in the radial direction on the outer periphery of the yarn axis by centrifugal force. While passing through
A perpendicular winding guidance device 21 for the presser thread, which is configured to spirally wrap the presser thread from a direction perpendicular to the yarn axis and fix the presser thread without almost catching on Ba, In the first aspect of the present invention, as shown in FIG. 2, a cup-shaped presser thread guide 22 is provided which is fixed on the presser thread bobbin 8 and passes through the upper end of the hollow needle 6.

The inner diameter 23 of the yarn guide 22 is set to such an extent that one Ba of the lower twisted yarn C does not come into contact with the inner circumferential surface immediately before turning with the yarn axis and passing through the center hole 7. Depending on the length, the length is in the range of 10 mm to 100 mm.

The annular upper edge 24 of the presser thread guide 22 is connected to the presser thread bobbin 8.
The presser thread wound around is pulled out by the speed of the lower twisted yarn C in the direction of the winding roller 10, thereby forming a sliding guide surface that guides the outer circumference of the lower twisted yarn C at a substantially right angle.

The right angle winding guide device 21 of the second aspect of the present invention is a special flyer 26 which is freely fitted onto the outer periphery of the upper end of the hollow needle 6 on the presser thread bobbin 8 as shown in FIG.

The flyer 26 has a lower thread guide port 28 formed in a downward arm 27 that rotates around the outer periphery of the presser thread bobbin.
A final thread guide port 30 is provided at the upper end of an upright piece 29 projecting upward from a base part fitted into the hollow needle 6 of 7, which is higher than the entrance of the center hole 7 of the hollow needle 6.

The above-mentioned upright piece 29 rotates around the outer circumference of the lower twisted yarn C above the center hole 7, and this upright piece 29 has a position where it does not come into contact with the one Ba on which the centrifugal force is acting. Select and set.

A method of manufacturing horn yarn by replacing the flyer 9 of the known fancy yarn manufacturing apparatus shown in FIG. 1 with a linear winding guide device 21 consisting of a special type flyer 26 (FIG. 3) which forms the main part of the second invention will be explained. , core thread supply device 1
From there, 1.10/'D nylon is fed as core thread A, and 20/1 cotton thread is fed from float supply device 3 as float main body B1, and 50/D crimp nylon is supplied as crimpable synthetic fiber B2. 30/D nylon filament was used for the surrounding thread, and the spindle rotation speed of the false twisting device 5 was 1.1800) (PM,
Supply ratio of floating water yarn B1 and crimpable synthetic fiber B2 to core yarn A is 2.0 times, number of twists S 590 T/M, yarn speed 21
It was manufactured under processing conditions of m/min.

The core yarn A, the floating yarn B1, and the crimped synthetic fiber B2 meet at the initial twisting point 4, and are false twisted by the false twisting device 5, but the floating yarn B1 and the crimped The stretched yarn of the synthetic fiber B2 has a supercharged length of 2.0 times the supply ratio to the core yarn A, and the length slackens intermittently at the initial twisting point 4, and the floating yarn B1 is not particularly strongly twisted. Even if the tension of the fiber B2 is at the initial twisting point 4
When the yarn loosens and recovers its crimpability, due to the entanglement of the floating yarn B1 during pulling, two Ba similar to the conventional return twist yarns described above are generated at irregular intervals as illustrated in FIG. 4. The first twisted yarn C is formed, passes through the false twisting device 5, and enters the center hole γ of the hollow needle 6 on the way to being untwisted.

However, just before that, the presser thread wound around the presser thread bobbin 8 is passed from the lower thread guide port 28 to the final thread guide port 30 of the special flyer (Fig. It is wound almost perpendicularly to the yarn axis of C, in the opposite direction to the first twist.

Of course, the first twisted yarn C has a speed at which it is pulled by the winding roller 10, and the presser thread strand is pulled out by this speed, so that the winding of the presser thread strand becomes spiral.

This winding in the direction perpendicular to the yarn axis is intended to prevent the yarn Ba from being tightly pressed against the outer periphery of the ply twisted yarn C by the presser threading even if the single Ba is long, and is particularly caused by this method. One type of Ba has a small number of twists and is crimpable fiber B2.
As mentioned above, the shape is not retained due to the entanglement of the threads, so even if the presser thread is damaged, this cannot be removed by the elastic force, so such right-angled winding is important for maintaining the design of the finished thread E. become.

Although the operation of the special-shaped flyer 26, which constitutes the main part of the second invention, has been explained above, the cup-shaped presser thread guide 22 (Fig. 2), which forms the main part of the first invention, is similar to the known one shown in Fig. 1. The same applies when replacing the flyer 9 of the fancy yarn manufacturing apparatus.

That is, the presser yarn guide 22 is installed at the end portion constituting the entrance of the central hole of the hollow weight through which the first twisted yarn C to be formed into the first twisted yarn C is passed, in a non-contact manner with respect to the first twisted yarn C. This is because the yarn is wound approximately perpendicularly to the yarn axis from the direction opposite to the twisting direction.

In the present invention, the floating yarn is increased in twist as before, is strongly twisted, and is returned to length portions at irregular intervals corresponding to the superfeeding amount for the core yarn to generate twists. Except for the flaws of pawn yarn caused by twisting, we have created a horn yarn that is extremely soft, does not permanently shift in the yarn axis direction, and does not have the flaws of being pressed or deformed by wrapping around the presser thread. The conventional flyer of the fancy yarn manufacturing apparatus shown in FIG. 1 can be replaced with the cup-shaped presser yarn guide 22 of the first invention shown in FIG. The modification of replacing the flyer 26 with the special type of flyer 26 of the second invention has the effect of facilitating efficient production of horn yarn.

[Brief explanation of the drawing]

FIG. 1 is a front view showing an outline of a known fancy yarn manufacturing apparatus, and FIG. 2 is a front view showing an outline of a known fancy yarn manufacturing apparatus.
FIG. 3 is a front view of a special type flyer according to the second invention, and FIG. 4 is a front view of a horn yarn produced by the apparatus of the invention. C → Twisted yarn, D → Presser yarn, E → Synthetic acid type A- → Core yarn, B →
Floating yarn, B1 → Floating yarn main yarn, B2 → crimped synthetic fiber, 1 → Core yarn supply device, 2 → Guide pipe, 3 → Floating yarn supply device, 4 →
Starting point of twisting, a → straight running section, 5 → false twisting device, 6 → hollow weight, 7 → hollow hole, 8 → presser yarn bobbin, 9 → flyer single take-up roller, 11 → winding device, 21 → Right angle winding guidance device,
22 → presser thread guide, 26 → special type flyer, 29 → upright piece, 30 → final thread guide.

Claims (1)

[Scope of Claims] 1. A core yarn supplying device and a floating yarn feeding device capable of supplying a length longer than that of the core yarn, and between the starting point of twisting of the core yarn and the floating yarn and the take-up roller. A straight running part is passed through the center of a hollow weight rotating in one direction, a false twisting device is arranged between the initial point of combination twisting and the hollow weight, and tension is applied from a presser thread bobbin fitted to the outer periphery of the hollow weight. In a fancy yarn manufacturing device, the presser yarn that is fed out is twisted around the core yarn and the first twisted yarn of the floating yarn.
An upper surface of the hollow weight is provided at an end portion constituting the entrance of the center hole of the hollow weight, and is not in contact with a large number of threads that protrude from and rotate around the thread axis of the first twisted thread moving in the direction of the winding roller. 1. A horn yarn manufacturing apparatus characterized in that a cup-shaped presser yarn guide is provided that guides the presser yarn approximately perpendicularly to the yarn axis using a peripheral edge as a guide surface. 2. It has a core yarn feeding device and a floating yarn feeding device that can supply a longer length than the core yarn, and has a straight running section between the starting point of the core yarn and floating yarn and the winding roller. The presser thread is passed through the center of a hollow weight rotating in one direction, a false twisting device is arranged between the initial point of twisting and the hollow weight, and the presser thread is fed out with tension from the presser thread bobbin fitted on the outer periphery of the hollow weight. In fancy yarn manufacturing equipment, which has a configuration in which the core yarn and floating yarn are hung around the first twisted yarn,
An apparatus for producing horn yarn, comprising a right-angle winding device comprising a flyer that rotates the final yarn guide around the outer periphery of the yarn and guides the presser yarn from the final yarn guide almost perpendicularly to the yarn axis.