JPS5831413B2 - Belt type false twisting device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION As shown in FIG. 1, two false-twisted bells) B1. A so-called belt-type false twisting device that nip yarn Y between B2 and false twist it is known.

In the above-mentioned false twisting device, a large number of belt pairs Bl and B2 are disposed adjacent to each other on a frame body in order to have a compact design, and a false twisting weight that is intercepted by the belt pairs B1 and B2 on the frame body. They are commonly driven via a pulley by a belt running between them.

FIG. 2 shows a plan view of the conventional device in which two frames F1 and F2 are unfolded in a plane.

The belt B1 is supported on the frame F1, and the belt B2 is supported on the frame F2.A pulley 3 is fixed to the shaft of each driving pulley 1.
The belt B1 is driven by a running belt R1 on the frame F1, and the belt B2 is driven by a running belt R2 on the frame F2 via each pulley 3 and drive pulley 1.

Actually, the frame body F1. F2 intersects at a predetermined angle, so that the belts B1 and B2 can contact each other and nip the yarns to false twist as shown in the first diagram.

In the case of Fig. 2, the intermediate pulley 3 is the thread YS on the left and the thread Y on the right.
The running bells 1-B1 and B2 respectively run in the directions opposite to each other, and the thread YS is twisted in the S direction, and the thread YZ is twisted in the Z direction.

In other words, the S twist and Z twist can be exchanged depending on whether the arrangement is for the yarn YZ or the yarn YS. Belt B1 depending on the difference. The vertical position of B2 in FIG. 2 is shifted by l, so the bell l-B1. The position of the contact crossing part of B2 was also shifted, and it was necessary to change and adjust the yarn path to match S twist and Z twist, which was extremely complicated in terms of operation.

The present invention aims to solve the above-mentioned drawbacks, and the present invention will be described in detail below with reference to the drawings from FIG. 3 onwards.

Fl and F2 are frames that can rotate around the belt intersection point BC, and the branch 4 of the belt B1 is fixed on the frame F1, and the branch 5 of the bell 1-B2 is fixed on the frame F2.

The bell) Bl is hung between the driving pulley 7 and the driven pulley 8 provided on the support 6 fixed to the branch 4, and the bell 1-B2
is hung between a driving pulley 11 and a driven pulley 12 provided on a support 10 rotatably supported by a branch pipe 9 fixed to the branch piece 4.

In FIG. 6, a screw portion 17 of a shaft 16 has a movable piece 14 slidably fitted in a long hole 13 of a branch 5 fixed to a knob 15.
The movable piece 14 and the lever 10a of the support body 10 are connected by the lever 18, and the rotation of the knob 15 rotates the support body 10 in the direction of arrow 19, and presses the bell l-B2 against the bell) B1. do.

A drive pulley shaft 20 with a drive pulley 7 fixed to its upper end is rotatably supported on the support 6, and a drive pulley shaft 21 with a drive pulley 11 fixed on its upper end is rotatably supported on the support 10.

22 and 23 are arms supported on the supports 6 and 10 so as to be pivotable about an axis 20.21;
Intermediate pulleys 24 and 25 are each rotatably supported on 3.

The arm 22 is connected by a pin 28 to a sliding piece 27 that is slidably fitted to a rod 26 fixed to the branch 4, and the arm 23 is connected to a sliding piece 27 that is slidably fitted to a rod 29 fixed to the branch 5. Connected to the moving piece 30 by a bottle 31, the sliding piece 2
7.30 is biased by a spring 32.33 to press each intermediate pulley 24.25 against the running belt R1, R2.

The intermediate pulley 24 and the first drive pulley shaft 20 are connected to the intermediate pulley 25 by a timing belt 34 and a grooved pulley.
The drive pulley shaft 21 and the drive pulley shaft 21 are connected to each other by a timing belt 35 and grooved boops IJ 36 and 37.

The false-twisting belt pair B1-L, B2-L constitutes one false-twisting weight, and the false-twisting belt pair B1-R, B2-R constitutes one false-twisting weight, and the intermediate boolean IJ24 for the false-twisting belt B1-L constitutes one false-twisting weight.
-L and false twist bell) Intermediate boo IJ24 about B1-R
-R are in contact with mutually opposite sides of the running belt t-R1, and the intermediate boob IJ25-L for the false-twisted belt B2-L and the intermediate boob IJ25-R for the false-twisted belt 1-B2-R are in contact with the running belt R2. Therefore, the false-twisting belts BIL and B1-R run in opposite directions, and therefore the left and right false-twisting weights in FIG. The yarn YZ of the left false twisting weight is given a Z twist, and the yarn YS of the right false twisting weight is given an S twist.

Note that the communication means between the intermediate pulleys 24, 25 and the shafts 20, 21 is not limited to a timing belt or a grooved pulley, and any known means such as gear engagement or the like may be used.

As described above, in the present invention, the Z-twisting belt pair B1L, B2
- Belt pair B 1-R for L or S twist.

By installing B2-R on the frames F1 and F2, it is possible to easily replace the SZ twist for each weight, and when replacing the above, only the position of the intermediate boops IJ 24 and 25 relative to the running belt changes. The position of the shafts 20, 21 relative to the running belt does not change, so the position of the false twist belt nip point BC remains unchanged, and there is no need to change the yarn path when changing the twist, making the twist change extremely easy.

[Brief explanation of the drawing]

Fig. 1 is a perspective view of the main parts of a belt-type false-twisting device, Fig. 2 is a plan view showing a conventional belt-type false-twisting device in which two frames are unfolded, and Fig. 3 is a device of the present invention. In 2
Fig. 4 is a plan view showing the state in which the two frames are unfolded, Fig. 4 is a view taken from the direction of the arrows IV-IV of Fig. 3, Fig. 5 is a view taken from the direction of the arrows of Fig. 3 It is a Vl-VI arrow direction view. B1. B2...False twisting bell l-1R1, R2...
... Running belt, 20, 21 ... Drive pulley shaft, 22° 23 ... Arm, 24. 25・
...Intermediate pulley.

Claims (1)

[Claims] 1. In a belt-type false-twisting device that performs false twisting by nipping yarn between two false-twisting belts that cross each other and run in opposite directions, the driving pulley shaft of the false-twisting belt is rotatably supported on a support. , an arm is provided on the support body so as to be rotatable around the drive pulley axis, and an intermediate pulley is rotatably supported on the arm, and the intermediate pulley is pressed against and biased against a running belt running between the respective spindles. , and a belt type characterized in that an endless belt is wound between grooved pulleys to which the drive pulley shaft and the intermediate pulley shaft are fixed to each other and communicated with each other.