JP2853609B2 - Disc tensor for textile machinery - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a disk tensor for a textile machine for applying a predetermined tension to a running yarn.

[0002]

2. Description of the Related Art Heretofore, there has been known an apparatus which adjusts the tension force of a disk tensor by a weight. As shown in FIGS. 5 and 6, this weight-type disc tensor
An inverted U-shaped pipe 11 fixed to a disk unit fixed to the body frame by a mounting portion (not shown), and a set of disks 12 rotatably and freely mounted on the inverted U-shaped pipe 11 And multiple weights 1
3 and the inverted U-shaped pipe 11
One side from the top of is the weight storage area. In use, the weight 13 is moved along the inverted U-shaped pipe 11 from the weight storage depending on the type of yarn, and is placed on the disk 12 on the opposite side in a required amount. The weight of the weight 13 applies tension to the traveling yarn Y passing between the pair of disks 12.

[0003]

In high-speed winding, with a weight-type disk tensor, when a specific portion of a yarn such as a slab, a knot or a seam is thickened, a thick portion of the traveling yarn passes through the disk. Then, when the interval between the disks suddenly increases, the weight jumps, and immediately after the traveling yarn having the normal thickness passes through the disk, the tension is not applied to the traveling yarn while the interval between the disks is widened. . In addition, even when the tension fluctuates at the time of high-speed unwinding, weight jumps and the like occur, and the same problem as described above occurs. In other words, in the weight method, when the tension fluctuates, there is a high possibility that the film is wound up without momentarily applying tension. For example, in the case of a drum traverse type plying machine in which a traverse device that traverses a traveling yarn rotates a reciprocating spiral groove cut in a drum at a high speed and traverses the traveling yarn in the reciprocating spiral groove to wind the yarn. In this case, the running yarn is slackened, one of the yarns is separated from the groove of the drum, and the other yarn is wound without being combined into one yarn. The yarn winding failure, which is not wound around, occurs, and has an adverse effect such as yarn breakage during unwinding in the next step.

In the weight type disk tensor, the weight must be adjusted for each spindle. When the type and thickness of the yarn are changed, an appropriate weight is first determined by trial winding or the like. Next, the weight amounts of all weights are made uniform. This requires a great deal of time and effort to adjust the weights. Furthermore, in the weight type disk tensor, the installation surface of the disk and the textile machine main body must be horizontal because of the structure in which the tension is applied by utilizing gravity, and the mounting position is also restricted.

The present invention has been made in view of the above points, and provides a disk tensor for a textile machine which is easy to adjust a tension, has a high effect of suppressing a variation in tension, and can be installed in any posture. With the goal.

[0006]

SUMMARY OF THE INVENTION The present invention relates to a diaphragm.
One disk using the other cylinder
The tension of the running yarn can be adjusted by pressing against
The cross section of the disk tensor of the textile machine
And its height is higher than the stroke of the cylinder rod.
The one disk formed slightly longer
Attach to the rod end and at least
Fixed guard that fits into this disc within the roak range
Material to cover the cylinder rod,
Fly waste or foreign matter that hinders fine tension adjustment
Etc. to prevent them from entering the movable part of the cylinder rod.
It is what was constituted.

[0007]

[0008]

In the disk tensor of the textile machine configured as described above, the diaphragm type cylinder works so as to dampen the vibration of the disk due to a change in the yarn diameter.

[0010] Further, by constituting the movable portion of the cylinder rod so as to cover it, it is possible to prevent fly dust and foreign matter from entering the movable portion of the cylinder rod.

[0011]

1 and 2 show a disk tensor according to a first embodiment of the present invention, and FIGS. 3 and 4 show a second embodiment thereof.

The disk tensor according to the first embodiment of the present invention comprises disks 2, 3, a guard member 4, a cylinder rod 6, a diaphragm cylinder 5 for driving the cylinder rod 6, and a bracket 1.

The disk 2 is shaped like a straw hat, and the end of the flange is bent into a letter-shaped portion with the head of the hat so as to facilitate threading when the thread breaks. It is a yarn guide 2a.

The disk 3 has a columnar shape, a U-shaped cross section having an open end on the side of the body frame 14, and a height slightly longer than the stroke of the cylinder rod 6.

The guard member 4 has a columnar shape, and has a U-shaped cross section with its open end facing the body of the cylinder 5, and is slightly smaller than the diameter of the disk 3.

The bracket 1 is provided with a notch 15 for obtaining a traveling path of the traveling yarn Y, and the disc 2 is rotatably fixed to the mounting portion 1d by a screw 7 using screws 7, and both ends of the mounting portion 1d. Is bent like the disk 2 and has a shape that facilitates threading when a thread breaks, and functions as a thread guide 1a.

The diaphragm type cylinder 5 is fixed to the body frame 14 so that the cylinder rod 6 protrudes.
The guard member 4 is fixed to the protruding flange of the cylinder rod 6 with the open end facing upward, and the open end of the disk 3 is axially fixed to the cylinder rod 6 so as to face the open end of the guard member 4. By covering the cylinder rod 6 with the disk 3 and the guard member 4, it is possible to prevent fly dust and foreign matter from entering the cylinder rod 6, which hinders delicate control.
May be slightly larger than the diameter of the disk 3 so that the disk 3 is covered by the guard member 4.

In mounting the bracket 1 to the main body of the textile machine, the mounting portion 1e is fixed by a screw (not shown) so that the disk 2 and the disk 3 can be pressed against each other.

To apply the tension, the diaphragm cylinder 5 is driven by a fluid (not shown), the cylinder rod 6 moves in the direction of the disk 2, and the disk 3 rotatably fixed to the cylinder rod 6 with the cylinder rod 6 accordingly. The disk 2 is pressed. Tension is applied by the traveling yarn Y passing through the pressure contact surface between the disc 3 and the disc 2 to which the pressure is applied, and the tension is adjusted by the strength of the pressure. Further, the disks 2 and 3 are rotated in accordance with the movement of the traveling yarn Y, so that the wear of the disks 2 and 3 is made uniform, the life of the disks 2 and 3 is extended, and uneven wear is caused. It is possible to prevent the quality of the yarn from deteriorating.

When the yarn is broken, the running yarn Y is fed along the end 1a of the bracket 1 serving as an introduction portion of the yarn guide, and is further slid toward the disk along 1b serving as a guiding portion. Let me go. The traveling yarn Y reaches the space S along the shoulder of the disk 3 and is guided between the disks 2 and 3 by the yarn guide 2a provided at the end of the flange of the disk 2.

FIGS. 3 and 4 show a second embodiment. This is different from the first embodiment in that two sets of discs 2 and 3 are attached to one bracket 1, but three sets are attached in the second embodiment. A thread guide 1c shaped like an arrowhead so that the center disk can be easily threaded.
When the traveling yarn Y is slid along the yarn guide 1c, the traveling yarn Y is guided to the shoulder portion of the disk 3, reaches the space S along the shoulder portion of the disk 3, and further reaches the end of the flange of the disk 2. Is guided between the disk 2 and the disk 3 by the yarn guide 2a provided in the first position. The number of disks to which tension is applied may be one set or three or more sets depending on the type and use of the textile machine main body.

The disc tensor of the present invention is not limited to a twine winder, but can be applied to all textile machines.

[0023]

By adjusting the tension of the traveling yarn using the diaphragm type cylinder, a sudden change in the thickness of the yarn or a change in the unwinding tension also produces a damping effect, which is caused by the weight jumping. In addition, it is possible to prevent the disk from becoming non-tensioned, and to reduce winding failures such as separation winding and yarn transfer failure of the yarn winding machine.

In addition, centralized control over multiple spindles is possible without hysteresis loss at the time of operation, and fine tension adjustment due to a difference in the type and thickness of the yarn can be reliably controlled. Moreover, there is no need to prepare a plurality of weights in advance as in the weight type.

Further, unlike the weight type, since it is not affected by gravity, it is possible to install the apparatus irrespective of the mounting angle. For this reason, conventionally, the disk tensor was designed to be installed in the form of protruding in front of the machine so as to be easy to work with and horizontal to the installation surface of the textile machine main body. The design can be performed without the use of the same, and the size of the textile machine body can be reduced.

Further, by constituting the movable portion of the cylinder rod by a disk and a guard member rotatably fixed to the cylinder rod, the movable portion of the cylinder rod is hindered from performing fine tension adjustment. This prevents foreign matter and foreign matter from entering the movable part of the cylinder rod, prevents malfunctions, and saves the trouble of cleaning.

Further, since the bracket for fixing the disk to the main body of the textile machine and the thread guide for threading are both used, threading at the time of thread breakage is facilitated, and the number of parts in the entire bracket can be reduced. It becomes possible. Further, a plurality of discs can be fixed to one bracket and attached to the main body of the textile machine, so that maintenance can be improved and the production efficiency of the main body of the textile machine can be increased.

[Brief description of the drawings]

FIG. 1 is a front view of a disk tensor according to a first embodiment of the present invention.

FIG. 2 is a side view of the disk tensor according to the first embodiment of the present invention.

FIG. 3 is a front view of a disk tensor according to a second embodiment of the present invention.

FIG. 4 is a side view of a disk tensor according to a second embodiment of the present invention.

FIG. 5 is a front view of a weight type disk tensor according to a conventional embodiment.

FIG. 6 is a side view of a weight type disk tensor according to a conventional embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Fixing bracket 1a Thread guide (introduction part) 1b Thread guide (guide part) 1c Thread guide 1d Attachment part 1e Attachment part 2, 3 Disc 2a Thread guide 4 Guard member 5 Diaphragm cylinder 6 Cylinder rod 7 Screw S Space

Claims (1)

(57) [Claims] 1. A using diaphragm type cylinder Meanwhile
Running by pressing one disk against the other disk
Textile machine display with adjustable yarn tension
In the tenser, the height of the cylinder rod is U-shaped and the
The one disk formed slightly longer than the disk
Attach to the tip of the cylinder rod, at least the cylinder
Fixed gasket that fits this disc within the stroke range of
The cylinder rod covers the cylinder rod.
To prevent fine adjustment of tension.
Foreign matter, etc. from entering the movable part of the cylinder rod.
Disc tensor for textile machinery that is configured to hang.