JPH02160936A - Twister - Google Patents

Abstract

PURPOSE:To enhance the productivity of a twisted yarn by disposing supplying fiber winds without fitting the supplying fiber winds into a spindle rotating with a rotation-driving device. CONSTITUTION:A yarn Y released from supplying fiber winds 16 is inserted into the yarn insertion hole 10 of a spindle 5 and further inserted into a traveler 14 through a yarn-passing hole 12. Winding devices 18, 19 and 20 are driven and rotation driving devices 7, 8 and 9 are operated to rotate the spindle 5 so as to alternately repeat right and reverse rotations at the same intervals, thereby winding up a twisted yarn alternately repeatedly twisted at constant lengths in the right and left rirections, respectively on the winding cylinder 19.

Description

[Detailed description of the invention] <Industrial application field> The present invention relates to a yarn twisting device that twists yarn.

<Prior art> As disclosed in Japanese Patent Application Laid-Open No. 59-116426, a yarn twisting machine has a spindle on which a bobbin is fitted, which is vertically supported, and an electric motor that rotates the spindle is installed at a position above the spindle. A snail wire is provided, and a winding device is provided above the snail wire.

Fit the bobbin onto the spindle, rotate the spindle,
When the bobbin is rotated, the thread wound around the bobbin is unwound, swung around by a balloon ring, heated, and wound into a winding device via a snail ear.

<Problems to be Solved by the Invention> However, in the above-mentioned yarn twisting machine, since the spindle rotated by the electric motor is fitted with a bobbin wound with yarn, the rotational moment of inertia is large.

Therefore, in the above-mentioned yarn twisting machine, it is difficult to rotate the bobbin fitted to the spindle at high speed, so it is difficult to increase the production efficiency of yarn twisting.

Furthermore, since the electric motor that rotates the spindle consumes a lot of power, operating costs are high.

An object of the present invention is to solve the conventional problems as described above.

Means for Solving the Problems> The present invention provides a rotational drive device that bears a spindle and rotates the spindle by alternately repeating forward and reverse rotations for the same period of time, and the rotational center position of the spindle that is rotated in the forward and reverse directions. A thread passing hole is provided through the spindle, a thread passing hole is provided on the outer periphery of the spindle, and a thread supply bobbin wound with the thread to be twisted is provided without being fitted onto the spindle, so that the thread unwound from the thread supply bobbin passes through the spindle. The thread is inserted through the thread passing hole of the spindle and passed through the thread passing hole of the spindle, a ring is provided at the outer circumferential position of the spindle, a traveler is fitted loosely into the ring, and the traveler rotates the outer circumferential position of the spindle along the ring. The spindle is configured to move, and is provided with a winding device for winding the twisted yarn, and the yarn passing through the yarn passage hole of the spindle during forward or reverse rotation is inserted through the traveler, twisted, and wound on the winding device. When the spindle rotates in the normal direction, the yarn unwound from the yarn supply spool is twisted in one direction and wound onto the winding device, and when the spindle rotates in reverse, the yarn unwound from the yarn supply spool is twisted in the other direction. This is a yarn twisting device characterized in that the yarn is twisted and wound around a winding device.

Function> In the yarn twisting device of the present invention, the spindle alternately repeats normal rotation and reverse rotation for the same period of time.

When the spindle rotates in the normal direction, the yarn unwound from the yarn supply spool passes through the yarn passing hole at the center of rotation of the spindle, passes through the yarn passing hole on the outer periphery of the spindle, and passes through the traveler. The traveler is rotated in one direction along the outer ring of the spindle, twisted in the {circle around (2)} direction, and wound up on a winding device.

When the spindle is reversed, the yarn unwound from the yarn supply spool passes through the yarn passing hole at the center of rotation of the spindle, passes through the yarn passing hole on the outer periphery of the spindle, and passes through the traveler. - is rotated in the other direction along the outer ring of the spindle, twisted in the other direction, and wound up on the winding device.

The yarn wound up by the winding device is twisted alternately in the right direction and the left direction, each having the same length.

Note that the yarn between the yarn feeder and the spindle is twisted to the left while the yarn between the spindle and the winding device is twisted to the right, and the yarn between the spindle and the winding device is twisted to the left. While it is being twisted, it is twisted to the right, and eventually the left-handed twist and right-handed twist cancel each other out, resulting in no twist.

<Effects of the Invention> In the yarn twisting device of the present invention, the spindle rotated by the rotary drive device does not have a yarn feeding spool wound with yarn fitted therein, so it is more advantageous than the spindle of a conventional yarn twisting machine in which a bobbin is fitted. Therefore, the moment of rotational inertia is small.

Therefore, compared to conventional yarn twisting machines, it is easier to rotate the spindle at a higher speed, so it is easier to increase the production efficiency of yarn twisting.

Furthermore, compared to conventional yarn twisting machines, the power consumption of the rotary drive device that rotates the spindle is lower, so operating costs are lower.

<Example> As shown in Fig. 1, the yarn twisting device of this example has two support plates 2 and 3 horizontally protruding from the support 1 at upper and lower positions, and a thread penetrating through both the upper and lower support plates 2 and 3. A spindle 5 is vertically inserted into the provided bearing hole via a ball bearing 4, and the upper and lower parts of the spindle 5 are supported by both upper and lower support plates 2 and 3.

In the middle between the upper part of the bearing and the lower part of the bearing of the spindle 5, there is a first
As shown in the figure, a belt groove 6 is provided around the circumference, and a belt 8 is passed between the belt groove 6 of the spindle 5 and the rotating shaft of the electric motor 7.
An electric circuit 9 is provided which drives the electric motor 7 to rotate by alternately repeating normal rotation and reverse rotation for the same period of time.

That is, a rotary drive device 7°8.9 is provided which rotates the spindle 5 by alternately repeating normal rotation and reverse rotation for the same period of time.

At the center of rotation of the spindle 5, as shown in FIGS. 1 and 2, a thread insertion hole 10 is provided between the upper end surface and the lower end surface, and an annular groove 11 is formed in the upper end surface of the spindle 5. Thread insertion hole 1
Concentrically drilled at the outer circumferential position of 0, and groove 1 of the spindle 5.
A thread passage hole 12 is provided in the outer peripheral wall of the shaft 1 at a position above the upper support plate 2 along the radial direction.

As shown in FIGS. 1 and 2, an annular ring 13 is fixed concentrically to the upper surface of the upper support plate 2 at the outer circumferential position of the spindle 5, and a part of the annular ring is attached to the ring 13. A notched traveler 14 is loosely fitted, and the traveler 14 is configured to rotate along the ring 13 around the outer circumferential position of the spindle 5.

As shown in FIG. 1, a snail wire 15 is arranged below the spindle 5, and one or more yarn supply windings 16 around which yarn is wound are arranged below the snail wire 15. ing.

As shown in FIG. 1, a snail wire 17 is arranged above the spindle 5, and a take-up device consisting of a traverser 18, a take-up cylinder 19, and a drive cylinder 20 is provided above the snail wire 17. There is.

The path of the yarn 7 between the snail wire 15 of the yarn feeding spool 16 and the lower end opening of the yarn insertion hole 10 of the spindle 5 is compared to the path of the yarn 7 between the upper end opening of the yarn insertion hole 10 of the spindle 5 and the traverser 18 of the winding device. And it has been set up for a very long time.

When using the yarn twisting device of this example, first, as shown in FIGS. 1 and 2, the tip of one or more yarns Y unwound from one or more yarn supply spools 16 is Snail wire 1
5, pass it through the thread passing hole 10 of the spindle 5 from the lower end opening to the upper end opening, pass it through the thread passing hole 12 of the spindle 5 from the inner end opening to the outer end opening, insert it through the traveler 14, and connect it to the Snell wire 17. It passes through the traverser 18 and locks onto the take-up cylinder 19.

Next, while driving the winding devices 18, 19.20, the rotary drive devices 7, 8.9 are activated to rotate the spindle 5 alternately repeating forward and reverse rotations for the same period of time.

Then, when the spindle 5 rotates in the normal direction, one or more yarns Y unwound from the yarn supply bobbin 16 pass through the yarn insertion hole 10 at the center of rotation of the spindle 5 and the outer periphery of the spindle 5 during the normal rotation. The thread passes through the thread passing hole 12 and the traveler 14 sequentially, and the traveler 14 is rotated along the ring 13 at the outer position of the spindle 5 in the same direction as the spindle 5 which is rotating in the normal direction. The spindle 5 where the thread Y is rotating in the normal direction
The fibers are twisted in the same direction and wound onto the winding cylinder 19 of the winding device.

When the spindle 5 is in reverse rotation, one or more yarns Y unwound from the yarn supply spool 16 pass through the yarn passing hole 10 at the center of rotation of the spindle 5 and the yarn passing hole on the outer periphery of the spindle 5 during the reverse rotation. 12 and the traveler 14, and the traveler 14 is moved to the ring 1 at the outer circumferential position of the spindle 5.
3 in the same direction as the reversing spindle 5, one or more yarns Y are twisted in the same direction as the reversing spindle 5, and are wound onto the winding cylinder 19 of the winding device. It will be done.

Therefore, the yarn Y wound up on the winding cylinder 19 of the winding device is twisted by alternating rightward twists and leftward twists of the same length.

The yarn Y between the snail wire 15 of the yarn supplying spool 16 and the lower end opening of the yarn insertion hole 10 of the spindle 5 is the same as the yarn Y between the upper end opening of the yarn insertion hole 10 of the spindle 5 and the traverser 18 of the winding device. During twisting, the yarn Y is twisted in the opposite direction to the left, and while the yarn Y between the upper end opening of the yarn insertion hole 10 of the spindle 5 and the traverser 18 of the winding device is twisted to the left, the yarn Y is twisted in the opposite direction to the left. The twist is to the right, and eventually the twist to the left and the twist to the right cancel each other out, resulting in no twist.

In the yarn twisting device of this example, the spindle 5 rotated by the rotary drive device 7°8.9 does not have the yarn supply spool 16 wound with yarn fitted therein, and therefore has a small rotational moment of inertia.

Therefore, it is easy to rotate the spindle 5 at high speed, and it is easy to increase the production efficiency of twisted yarn.

Furthermore, the electric motor 7 of the rotary drive device consumes less power, and operating costs are low.

[Brief explanation of the drawing]

FIG. 1 is a partial longitudinal cross-sectional implied front view of a yarn twisting device according to an embodiment of the present invention. FIG. 2 is an enlarged cross-sectional view taken along line nn in FIG. 1. 4: Ball bearing 5 Varnish pin lure, 8, 9: Rotation drive device lO: Yarn insertion hole 12: Yarn passage hole 13: Ring
14: Traveler 16: Yarn supply yarn winder 18. 19, 20: Winding device Y: Yarn

Claims (1)

[Scope of Claims] A rotational drive device is provided which bears a spindle and rotates the spindle by alternately repeating forward and reverse rotations for the same period of time, and a thread insertion hole is provided at the center of rotation of the spindle that is rotated in forward and reverse directions. A yarn passing hole is provided on the outer periphery of the spindle, and a yarn supply bobbin wrapped with yarn to be twisted is provided without being fitted onto the spindle, so that the yarn unwound from the yarn supply bobbin passes through the yarn insertion hole of the spindle. A ring is provided at the outer circumferential position of the spindle, a traveler is fitted loosely into the ring, and the traveler rotates the outer circumferential position of the spindle along the ring. A winding device is provided for winding the yarn, and the yarn passing through the yarn passing hole of the spindle during forward or reverse rotation is inserted through a traveler, twisted, and wound on the winding device. The yarn unwound from the spool is twisted in one direction and wound on the winding device, and when the spindle reverses, the yarn unwound from the yarn feeding spool is twisted in the other direction and wound on the winding device. A twisting device characterized by having a configuration in which a twisting device can be used.