JPS6215261Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a false twisting machine using a belt type false twisting device.

The structure of the above-mentioned belt-type false-twisting device is shown in FIG. Twisting units A and B are configured, and false twisting belts 1a and 1b are connected to drive pulleys 2a and 1b.
2b runs in the directions of arrows 4 and 5, and false twists are applied to the yarn Y nipped between both belts 1a and 1b.

The belt type false twisting device simultaneously applies twisting force and feeding force to the yarn Y by running the false twisting belts 1a and 1b, but these forces can be freely changed by changing the intersection angle θ between the belts. It can be set each time depending on the yarn type, usage, etc. However, in order to change the crossing angle θ, it is necessary to make the false twisting units A and B movable relative to each other, and for this reason, the mechanism for driving the false twisting belts 1a and 1b must be complicated. Nakatsuta.

The present invention focuses on the above-mentioned circumstances and provides a belt-type false twisting machine that has a simple structure and can respond to changes in the inter-belt intersection angle θ. To provide a belt-type false twisting machine that can be easily changed.

Embodiments of the present invention will be described below based on the drawings. In the following description, the same reference numerals will be used for the same members as those shown in FIG.

FIG. 2 schematically shows a device for driving one false-twisting unit A that constitutes a belt-type false-twisting device, and 6 is a device that winds both ends around a drive roller 8 and a tension roller 9 that are fixed to a drive shaft 7. This is an endless drive belt stretched between first and second guide rollers 10 and 11. The drive belt 6 has two belts parallel to each other between the guide rollers 10 and 11.
A parallel running section (outward path) 6-1 (return path) 6-2 of the book is formed, and the running sections 6-1, 6-2 are rotated by the rotation of the drive shaft 7 in the direction of arrow 12, so that
The vehicles run in opposite directions as indicated by 14. Further, the parallel running portions 6-1 and 6-2 are connected to the touch roller 1 which is connected and fixed to the drive pulley 2a in the false twisting unit A.
5, and a free roller 16 provided on the opposite side of the touch roller 15 via the parallel running sections 6-1 and 6-2 is connected to the running section 6-2.
By pressing either one of the belts 1 and 6-2 against the touch roller 15, the false-twist belt 1a runs and its running direction is reversed. The above structure is the same for the other false twisting unit B, and the drive shaft 7 is used in common for both units A and B.

FIG. 3 shows a side view of the drive device, and each false twisting unit A, B has two movable frames 17a, 17.
b, respectively, and supported on a pedestal 20 fixed to the machine base 19 via brackets 18a, 18b, and both brackets 18a, 1
8b is fixed to the pedestal 20 by screws 22 within the range of the elongated hole 21. The drive shaft 7 is the machine base 19
The third and fourth guide rollers 24 and 25 are rotatably supported by arms 23a and 23b fixed to each movable frame 17a and 17b, respectively. The drive belt 6 passes from the drive roller 8 to the first guide roller 24, 25 through the third and fourth guide rollers 24, 25.
It passes through the guide roller 10 and further passes through the second guide roller 11 to reach the tension roller 9. The free roller 16 is removably fixed in each movable frame 17a, 17b with a screw or the like, and by changing its direction, the pressure of the parallel running portions 6-1, 6-2 can be switched from one side to the other. can. Each movable frame 17a, 17b, bracket 18a,
18b and arms 23a, 23b have the same structure, and except for the brackets 18a, 18b, they are attached in opposite directions in the longitudinal direction of the paper in FIG.

FIG. 4 shows the arrangement of each device on the movable frame 17a, and in the case of another movable frame 17b, the arrangement is the same except that the left and right sides are reversed. Movable frame 17
Parallel running portions 6-1, 6- of the drive belt 6 are on b.
A large number of false twisting units A and the free rollers 16 are arranged along the belt 2, and are driven all at once by the drive belt 6. Reference numeral 26 designates a fifth guide roller that limits the deflection of the drive belt 6 so that the pressure of the drive belt 6 by the free roller 16 does not affect other false twisting units A. The tension roller 9 is rotatably supported by a slide plate 27 provided on the back surface of the movable frame 17a, that is, on the same surface as the mounting surface of the arm 23a. It is slidably provided along the dovetail groove 28 shown in FIG. A pin 29 is fixed to the slide plate 27, and the pin 29
From there is another pin 30 fixed to a part of the back surface.
A spring 31 is tensioned between the drive belt 6 and the tension roller 9, and the force of the spring 31 urges the tension roller 9 in the direction of the arrow 32 to maintain the drive belt 6 in a tensioned state at all times.

Next, the operation of the above-mentioned drive device will be explained.

The intersection angle between each false-twisted belt 1a, 1b is determined by loosening the screw 22 in FIG.
8b around the nip point N, that is, by changing the tightening position of the screw 22 within the elongated hole 21. At this time, the movable frame 17
a, 17b and the arms 23a, 23b also rotate together around the nip point N, and the length of the wrapped portion of the drive belt 6 around the third and fourth guide rollers 24, 25 changes. This amount is absorbed by changing the position of the tension roller 9. Further, since the drive belt 6 is once bent between the drive roller 8 and the first guide roller 10 by the third and fourth guide rollers 24 and 25 supported on the arms 23a and 23b, the above-mentioned The position of the drive belt 6 remains the same as the first guide roller 10 even when changing the inter-belt crossing angle.
Therefore, each parallel running portion 6-1, 6-
2. The mutual positional relationship between the touch roller 15 and the free roller 16 does not change. That is, the running path of the drive belt 6 is the movable frame 17a, 17b.
Even if the roller rotates, only the winding angle (bending angle) at the positions of the guide rollers 24 and 25 changes;
Drive roller 8 and first guide roller 1 due to the rotation
Changes in the relative position and relative angle with respect to 0 are absorbed by changes in the winding angle (bending angle) around the guide rollers 24 and 25.

As explained above, according to the present invention, since the drive belt is guided by the guide roller between the drive shaft and the movable frame, the position of the drive belt on the frame remains unchanged even when the movable frame turns. There is an advantage that each false-twisting belt can always be driven stably without fluctuation. In addition, although the structure is simple, the running direction of the false-twisted belt can be easily changed by simply changing the pressing position of the free roller.

[Brief explanation of the drawing]

Figure 1 is a perspective view showing a belt-type false twisting device;
3 is a side view of the drive device, and FIG. 4 is a diagram showing the arrangement of the drive belt. 1a, 1b... false twist belt, 6... drive belt, 6-1, 6-2... parallel running section, 7... drive shaft, 9... tension roller, 10... first guide roller, 11 ...Second guide roller, 1
5...Tatsuchi roller, 17a, 17b...Movable frame, 19...Machine base, 24...Third guide roller, 25...Fourth guide roller, 27...Slide plate, 31...Spring, N...Nip Point, Y
... Thread, θ ... Crossing angle.

Claims (1)

[Scope of utility model registration request] Two false twisting belts that intersect and run in different directions are each supported on a movable frame, the yarn is nipped between the false twisting belts to perform false twisting, and the movable frame is rotated around the nip point. This is a belt type false twisting machine that changes the crossing angle between the false twisting belts, and the drive belt for driving the false twisting belts is one endless belt, and the drive belt has a forward path,
Each parallel running portion of the return path is arranged close to the touch roller of the false-twisting belt, and the folded portion at one end is wrapped around a tension roller that can be slid freely on the movable frame, and the folded portion at the other end is movable. The section is wrapped around a drive shaft provided on a fixed machine stand outside the frame and extends parallel to the rotation axis of the movable frame, and between the parallel running part and the other end folded part wrapped around the drive shaft. The drive belt path is in rolling contact with a guide roller provided on a movable frame that bends following the rotation angle of the movable frame, and furthermore, on the movable frame, the forward and return paths of the parallel running portion of the drive belt are arranged on the movable frame. A belt-type false-twisting machine characterized by being provided with a free roller that selectively presses against any of the above to bring the drive belt into contact with the touch roller of the false-twisting belt.