JP3063603B2 - Tension control system in false twisting machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a tension control system for a false twisting machine for false twisting two filaments used in a processing machine such as a draw twisting machine.

[0002]

2. Description of the Related Art As shown in FIG. 6, which is a schematic front view of a false twisting device of a conventional twining false twisting machine, for example, a Z twisted filament y1 and an S twisted filament y2 are twisted to obtain 1 When manufacturing the SZ twin yarn y, the tension of the SZ twin yarn y in which the Z twist filament y1 and the S twist filament y2 are twisted is detected by one tension detector C, and a temporary The Z-twisted filaments y1 and S formed by the disk member D and the false twist belt members B1 and B2 constituting the twisting device T
There is known a tension control system in a twining false twisting machine that adjusts the contact pressure of the twisted filament y2.

[0003]

The tension control system in the conventional twining false twisting machine described above detects the tension of the spun SZ twined yarn y with one tension detector C, and detects the detected signal. , The contact pressure between the Z-twisted filament y1 and the S-twisted filament y2 is adjusted via a control device or the like. Therefore, based on the difference in tension between the individual Z twisted filaments y1 and S twisted filaments y2, the contact pressures of the Z twisted filaments y1 and S twisted filaments y2 by the false twisting device T are not individually adjusted. There is a certain limit in the yarn quality of the manufactured SZ twin yarn y, and there is a problem that high quality SZ twin yarn y cannot be manufactured.

[0004] An object of the present invention is to solve the problems of the tension control system in the conventional twining false twisting machine as described above.

[0005]

SUMMARY OF THE INVENTION In order to achieve the above-mentioned object, the present invention relates to a tension control system for a twining false twisting machine. Independently, based on the detection result of the tension of the filament before the twining, the false twisting device, respectively, to be separately controlled,
Second, the false twisting device has a disk and a pair of false twist belts that come into contact with the surface of the disk from both sides. It is a twisted filament and an S-twisted filament.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a schematic front view of a false twisting apparatus as an example to which a tension control system in a twining false twister of the present invention is applied. FIG. FIG. 2 is a side view of a main part of a false twisting machine as an example to which the present invention is applied. FIG. 2 is an enlarged perspective view of a main part of a false twisting apparatus as an example to which a tension control system in the false twisting machine of the present invention is applied. FIG. 3 is a side view of a tension detecting member as an example used in the tension control system in the twining false twisting machine of the present invention. FIG. 4 is a front view of the tension detecting member shown in FIG. An embodiment of the tension control system in the twining false twisting machine of the present invention will be described with reference to FIG. 5, but the present invention is not limited to this embodiment at all without departing from the gist of the present invention.

In FIG. 1, y1 and y2 are respectively
The Z-twisted filament and the S-twisted filament are the same as those shown in FIG. 6, and the Z-twisted filament y1 and the S-twisted filament y2 are disc members D constituting the false twisting device T, respectively.
The twisting is performed while being sandwiched between the false twist belt member B1 and the disk member D and the false twist belt member B2, to form a Z twist filament y1 and an S twist filament y2.

[0008] C1 is a tension detector for detecting the tension of the Z-twisted filament y1, and C2 is a tension detector for detecting the tension of the S-twisted filament y2. As described above, in the present invention, the tensions of the Z-twisted filament y1 and the S-twisted filament y2 are detected by the separate tension detectors C1 and C2, respectively, and based on the detection results by the separate tension detectors C1 and C2. hand,
The contact pressure between the disk member D and the false twist belt member B1 and the contact pressure between the disk member D and the false twist belt member B2 are controlled independently of each other.

Next, referring to FIG. 2 and FIG. 3, as an example to which the tension control system in the twining false twisting machine of the present invention is applied, a disk member D and a disk member D are disposed to face each other. A false twist device T composed of a pair of false twist belt members B1 and B2 described above will be described.

As shown in FIG. 2, a known primary heater (not shown), a cooling member for cooling the filament and controlling the balloon, etc., are passed through a false twisting device T, which will be described later. The two filaments y1 and y2 subjected to the twisting of the Z twist and the S twist are combined with the yarn guide 1
And then wound into a package (not shown) via the feed roller 2. In addition, 3 is a yarn guide disposed upstream of the false twisting device T.

Next, the disk member D will be described. d1
Is rotated by a suitable driving means such as a motor (not shown) or a driving belt m1 which shares a driving source with a false twist false twist belt members B1 and B2 described later as shown in FIG. The disk d1 is a disk attached to the rotating shaft d2. The disk d1 can be formed of a metal, a hard synthetic resin, or the like, and can be formed of a rigid body that is difficult to bend or an elastic body. d3 is a friction ring part having abrasion resistance disposed on or near the outer periphery of both surfaces of the disk d1, and such a friction ring part d3 may be formed integrally with the disk d1, Alternatively, the disk d1 may be disposed on the outer periphery or near the outer periphery by lining processing or the like.

Next, the false twisted belt members B1 and B2 will be described. Since the false twisted belt members B1 and B2 have the same structure, one of the false twisted belt members B1 will be mainly described. I do. In addition, a dash (') is attached to the code of the part corresponding to the false twist belt member B1 of the other false twist belt member B2.

The false twist belt b1 of the false twist belt member B1
Are arranged so as to intersect with friction ring portions d3 arranged on both surfaces of the disk d1 of the disk member D, and the false twist belt b1 of the false twist belt member B1 and the friction ring portion of the disk member D. According to d3, each of the two filaments is sandwiched, and the filaments are false-twisted.
1 and S-twisted filament y2.

B2 and b3 are axes b4, b parallel to each other
5, a pulley attached to the tip of pulley 5, pulley b2,
The above-mentioned false twist belt b1 is stretched between b3. The pulleys b2 and b3 are attached to the frame b6 via a bearing member b7 disposed so as to be movable toward or away from the disk d1 of the disk member D via the intermediate frame b8. Are respectively supported by the bearing members b9. A pulley b10 is attached to the other side of the shaft b4 opposite to the side where the pulley b2 is attached. The pulley b10 is rotated by bringing the pulley b10 into contact with the drive belt m1 to rotate the pulley b2. It is configured such that the false twist belt b1 stretched between the pulleys b2 and b3 can travel as appropriate.

The shaft b of the other false twist belt member B2
4 ′ is formed to be longer than the shaft b4 of the false twist belt member B1, and the pulley b10 ′ attached to the shaft b4 ′ of the false twist belt member B2 is connected to the shaft b4 of the false twist belt member B1.
Is configured so as to be located above the pulley b10 attached to. And the shaft b of the false twist belt member B1
The pulley b10 attached to No. 4 comes into contact with a lower drive belt m1 of the drive belts m1 described below,
The pulley b10 'attached to the shaft b4' of the false twist belt member B2 is configured to contact the drive belt m1 located above.

Reference character b11 denotes an idle pulley rotatably supported on a shaft b13 hung on a frame b12. The idle pulley b11 is driven between the idle pulley b11 and a pulley b10 attached to a shaft b4 of the false twist belt member B. Belt m
1, the drive belt m1 and the pulley b
10 is configured to prevent slippage. A similar idle pulley b11 'is provided for the false twist belt member B2 pulley b10'.

The drive belt m1 is stretched around a pulley m2 attached to an output shaft of a motor (not shown), pulleys m3 and m4 for changing direction, and the drive belt m1 located above and the drive belt m1 located below. It is configured to be driven such that the traveling direction with the belt m1 is reversed.
The axes b4, b4 'of the false twist belt members B1, B2.
By connecting the output shafts of the motors directly or via transmission members, respectively, the shafts b4, b
4 'can also be rotated.

Next, using the false twisting device T having the above-described configuration, the two filaments are
Twisted and S-twisted and Z-twisted filaments y1 and S
The process of manufacturing the twisted filament y2 and then twisting it will be described.

One of the filaments (the filament located on the near side in FIG. 3) is twisted while being sandwiched between the friction ring portion d3 of the disk member D and the false twist belt b1 of the false twist belt member B1. However, the disk d1 of the disk member D is rotating clockwise, and the false twist belt b
1 is rotated leftward (counterclockwise) when viewed from the plane, so that the filament upstream of the false twisting device T is given a Z twist, and the filament has a Z twist. , The filament is twisted and fixed by the primary heater.
It becomes 1.

The other filament (in FIG. 3,
The filament located at the rear) includes the friction ring portion d3 of the disk member D and the false twist belt b of the false twist belt member B2.
1 ′ and twisted, the disk d1 of the disk member D is rotating clockwise, and the false twist belt b1 ′ of the false twist belt member B2 is Since the filament is rotated rightward (clockwise) when viewed, the filaments upstream of the false twisting device T are given S twists, and the filaments remain 1 twisted while being S twisted. Since the filament is twisted and fixed by the next heater, the filament becomes the S twisted filament y1.

As described above, the filament y1 twisted by the Z twist and the filament y2 twisted by the S twist by the false twisting device T are appropriately combined by the thread guide 1 and the like.

As shown in FIGS. 1 and 3, the Z-twisted filament y1 and the S-twisted filament y2 are composed of a false twist device T and a yarn guide 1 for joining the Z-twisted filament y1 and the S-twisted filament y2. And the tension detectors C1 and C2 disposed between them. Tension detector C
1 and C2 are fixed guide rollers c1 and c2 arranged at predetermined intervals, and fixed guide rollers c1 and c2.
It has a movement guide roller c3 disposed therebetween,
The displacement of the moving guide roller c3 is read by a known means, and the Z-twisted filaments y1 and S
It is configured to detect the tension of the twisted filament y2.

Reference numeral c4 denotes a cylinder disposed on the frame b6. The tip of the piston rod c5 of the cylinder c4 is attached to the arm b13 'of the bearing member b7'. Reference numeral c6 denotes a slider attached to the bearing member b7 ', and a groove c7 formed on a side surface of the slider c6 is fitted with a ridge of a sliding groove (not shown) formed on the frame b6. ing. Cylinder c4 as appropriate
By actuating the piston rod c5 to advance and retreat, the slider c6 to which the bearing member b7 'is attached via the arm b13' is moved along the sliding groove formed in the frame b6 to the disk d1. Therefore, the contact pressure between the disk member D and the false twist belt member B2 can be adjusted. Similar cylinders c4, piston rods c5, sliders c6, etc. are also provided on the other bearing member b7. In the present embodiment, the cylinder c4 disposed on the bearing member b7 and the cylinder c4 disposed on the bearing member b7 'are disposed so as to face each other such that the piston rods c5 face each other.

Next, a tension detecting member as an example used in the tension control system in the twining false twisting machine of the present invention will be described with reference to FIG. 4 and FIG.

Reference numeral c8 denotes a housing of the tension detecting member, and fixed guide rollers c9 having two thread grooves c9 'and c9 "near the top and bottom of the side wall c8' of the housing c8.
A fixed guide roller c10 also having two thread grooves c10 ′ and c10 ″ is attached at a predetermined interval. One thread groove c11 ′ is provided between the two fixed guide rollers c9 and c10. Moving guide roller c
11 and a moving guide roller c12 also having one thread groove c12 'are arranged, and the thread groove c11' of the moving guide roller c11 and the thread groove c12 'of the moving guide roller c12 are shown in FIG. So that the two filaments y1 and y2 described above do not contact each other,
It is placed out of alignment.

The moving guide roller c11 and the moving guide roller c12 are connected to the rotation angle detectors c13 and c14 of the tension detectors C1 and C2 disposed in the housing c8, respectively.
The moving guide rollers c11 and c12 are urged clockwise in FIG. 5 by an appropriate spring member (not shown).

One filament y1 is hung around a thread groove c9 "located outside the fixed guide roller c9, a thread groove c10" located outside the moving guide roller c12 and the fixed guide roller c10, and One filament y2 has a thread groove c9 ′ located inside the fixed guide roller c9, a thread groove c1 located inside the moving guide roller c11 and the fixed guide roller c10.
Multiplied by 0 '. And the movement guide roller c1 due to the tension fluctuation of each filament y1, y2.
The rotation angle detectors c13 and c14 detect the movements of the filaments y1 and c12 so that the tensions of the filaments y1 and y2 can be separately detected.

In the tension detecting member having the above-described structure, the two moving guide rollers c11 and c12 for detecting the tension built in the housing c8 are arranged close to each other. Compared to the case where two tension detecting members provided with guide rollers are arranged side by side, the workability such as the thread hooking operation is improved and the cost can be reduced. Suitable as a tension detecting member.

The operation of the tension control system in the twine false twisting machine having the above-described configuration will be described below.

The tension detector C1 has a Z-twisted filament y
When it is detected that the tension of No. 1 has become larger than the predetermined value by raising the moving guide roller c3, the cylinder c4 is operated to retract the piston rod c5, thereby causing the slider c6 to move in FIG. By moving it to the right, the contact pressure between the disk member D and the false twist belt member B1 is reduced, the feed amount of the Z twist filament y1 is reduced, and the tension of the Z twist filament y1 is reduced. Conversely, when the tension detector C1 detects that the tension of the Z-twisted filament y1 has become smaller than a predetermined value by lowering the moving guide roller c3, the cylinder c
4, the piston rod c5 is advanced, and the slider c6 is moved leftward in FIG. 3 to increase the contact pressure between the disk member D and the false twist belt member B1 to increase the Z twisted filament. By increasing the feed amount of y1,
Increase the tension of the Z-twisted filament y1. The same tension adjustment is performed on the S-twisted filament y2 by the tension detector C2 and the like.

As described above, in the present invention, the Z-twisted filament y1 and the S-twisted filament y2 before the twining are used.
Is controlled separately and independently, so that the twisted SZ twin yarn y may have a biased torque due to the difference in tension between the Z twisted filament y1 and the S twisted filament y2. In addition, it is possible to manufacture an SZ ply yarn y with improved yarn quality.

In the above-described embodiment, the Z-twisted filament y1 and the S-twisted filament y2 are combined and
Although the tension control system in the twining false twisting machine of the present invention has been described using the example of manufacturing the twining yarn y, in the case where the filament is twisted by two sets of the pair of false twisting belts, one pair of the false twisting belts is used. Twisting the filaments into a Z twist with a twist belt, twisting the filaments into a Z twist with the other pair of false twist belts, and twisting the Z twist filaments together, Twisted filaments can be combined. Furthermore, without being limited to the combination of two filaments, three or more filaments can be combined.

In the above-described embodiment, the false twisting belt member B1 and B2 are opposed to each other with the disk member D interposed therebetween to form the false twisting device T.
1, a tire-shaped drum is used instead of B2, and a surface corresponding to the tread surface of the tire and a friction ring portion d of the disk member D are used.
3 between the filament and the filament,
Each of them can be configured to perform Z twist and S twist, respectively.

Further, the pair of false twisted belt members B1 are configured so that the false twisted belts b1 cross and contact each other without using the disk member D, and the filament y1 is sandwiched between the false twisted belts b1. It is also possible to use a false twisting device of a type in which two filaments y1 and y2 are twisted by using a pair of twisting belt type false twisting devices.

Further, three rotating shafts which are parallel to each other and rotate in the same direction are arranged adjacent to each other, and a plurality of friction disks are contacted to the three rotating shafts without contacting each other, and A pair of frictional false twisting devices (see, for example, Japanese Patent Application Laid-Open No. 7-26430) attached to each other are used to apply two filaments by each frictional false twisting device. It can also be twisted. In this case,
Instead of adjusting the contact pressure of the filament according to the detected tension of the filament as shown in the above-described embodiment, the rotation speed of the friction disk is adjusted. For example,
When the tension of one of the filaments becomes larger than a predetermined value, the rotational speed of the friction disk is increased to lower the tension of the filament to a predetermined value, and the tension of the filament is smaller than the predetermined value. If this happens, the number of revolutions of the friction disk is decreased and the tension of the filament is increased to a predetermined value. By performing such tension control separately for the two filaments, it is possible to manufacture a plied yarn with improved quality.

[0036]

Since the present invention is configured as described above, it has the following effects.

[0037] Since the tension of the filament before the laying is separately and independently controlled, the quality of the laid yarn can be improved.

[Brief description of the drawings]

FIG. 1 is a schematic front view of a false twist device as an example to which a tension control system in a twining false twisting machine of the present invention is applied.

FIG. 2 is a side view of a main part of a twine false twister as an example to which the tension control system in the twine false twister of the present invention is applied.

FIG. 3 is an enlarged perspective view of a main part of a false twist device as an example to which the tension control system in the twining false twisting machine of the present invention is applied.

FIG. 4 is a side view of an example tension detecting member used in the tension control system in the false twisting machine of the present invention.

FIG. 5 is a front view of the tension detecting member shown in FIG.

FIG. 6 is a schematic front view of a false twist device of a conventional twining false twisting machine.

[Explanation of symbols]

 T: False twist device B1, B2 ... False twist belt member C1, C2 ... Tension detector D ... Disc member b1 ... ... false twist belt d1 ... disk m1 ... drive belt y1 ... Z twist filament y2 ... S twist filament

Claims (3)

(57) [Claims] 1. A method for detecting the tension of a filament before twining separately and independently, and separately controlling a false twisting device based on the detection result of the tension of the filament before twining. A tension control system for a twine false twister, characterized in that: 2. The false twisting machine according to claim 1, wherein the false twisting device has a disk and a pair of false twist belts that contact the surface of the disk from both sides. Tension control system. 3. The tension control system for a false twining machine according to claim 1, wherein the filaments before the twining are a Z-twisted filament and an S-twisted filament.