JPH0570037A - Thread winding device - Google Patents

Abstract

(57) [Summary] [Purpose] When winding a yarn with a spinning machine, a twisting machine, a spinning take-up machine, etc., the winding appearance is improved, and a package with excellent unwinding property that does not cause yarn drop or loop drop is obtained. A yarn winding device is provided. [Structure] In addition to a first traverse mechanism for forming a package, a second traverse mechanism 10 is provided, and a second traverse is provided on the first traverse.

Description

Detailed Description of the Invention

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement of a yarn winding device in a spinning machine, a twisting machine, and the like, and more particularly, to stabilization of the form of a yarn wound by these winding devices.

[0002]

2. Description of the Related Art In an apparatus for winding a yarn using a spindle, such as a spinning machine, a twisting machine, and a spinning take-up machine, it is widely practiced to wind the yarn into a bobbin on a spindle. In order to form a pan, it is necessary to traverse a yarn on a bobbin on a spindle, but many proposals have been made for a traverse mechanism.

Japanese Patent Publication No. 19067/1990 proposes a traverse method in which the winding position of the yarn is fixed and the bobbin is moved with respect to the winding position to form a bun. This method is the opposite of the general method of fixing the position of the bobbin and moving the guide to traverse the yarn. Regardless of which traverse method is used, it is required that the shape of the formed pan is stable and the yarn is not disturbed during handling of the bobbin.

Recently, there has been an increasing demand for higher yarn handling speed. This means that the winding speed must be increased, but in order for the wound yarn to be in a stable state, adjustment of the tension applied to the yarn during winding and the appearance after winding Need improvement. In this respect, various ideas have been made in the past, but it has become impossible to achieve the intended purpose by increasing the yarn processing speed.

[0005]

DISCLOSURE OF THE INVENTION The present invention provides a PAN that, in the above-mentioned situation, when a filament is wound into a PAN, an excellent winding appearance is obtained and the unwinding property is excellent and ring collapse does not occur. An object of the present invention is to provide a yarn winding device that can be obtained and that can be wound at high speed.

[0006]

The present invention includes: In a yarn winding device equipped with a first traverse mechanism for moving a yarn relative to a spindle relative to a spindle axis direction to form a bun on a bobbin on the spindle, in addition to the first traverse mechanism, A yarn winding device, wherein a yarn traversed by one traverse mechanism is provided with a second traverse mechanism that gives a traverse by overlapping the traverse given by the first traverse mechanism. 2. The yarn winding device according to the above 1, wherein the traverse speed of the second traverse mechanism is higher than the traverse speed of the first traverse mechanism. By doing so, the purpose is achieved.

A detailed description will be given below with reference to the drawings. Figure 1
It is the whole perspective view showing one embodiment of the device of the present invention. Figure 2
4 to 4 are perspective views showing different embodiments of the second traverse mechanism. FIG. 5 is a front sectional view of a bobbin centerline of a bun-shaped package in which a yarn is wound using a conventional winding device, and FIG. 6 is a bobbin center of a bun-shaped package in which a yarn is wound by the device of the present invention. It is a front sectional view in a line.

In the figure, reference numeral 1 is a spindle for winding a yarn around a bobbin 3 which is rotated by a spindle motor 2 and fitted. 4 is a traverse cylinder fixed to the frame 12 via a bracket 13,
The traverse is given to the spindle 1. That is, the spindle motor 2 equipped with the spindle 1 has the slider 6 attached to the lower side thereof, and the slider 6 is attached to the frame 12
It is placed on the guide rail 5 fixed to the. Therefore, the spindle 1 and the spindle motor 2 can reciprocate on the guide rail along the guide rail. A rotary encoder 8 is provided with a rack and pinion 7 between the rotary encoder and the frame 12 and can detect the position of the spindle. The detected result is fed back to the traverse cylinder 4 to control the traverse cylinder.

The traverse cylinder 4 has an operating rod 41 which can move inside the cylinder, and the operating rod 41 is connected to the spindle motor 2. An appropriate power source for driving the operating rod 41 is connected to the traverse cylinder 4. The traverse cylinder 4, the operating rod 41, the guide rail 5, the slider 6, the rack and pinion 7, and the rotary encoder 8 can move the position of the spindle 1 in the axial direction of the spindle. I am configuring.

Reference numeral 10 is a second traverse mechanism. 11
Is a swing fulcrum guide fixed to the frame 12 by a bracket (not shown), and determines the yarn passing position on the yarn supplying side and also on the bobbin 3 fitted to the spindle 1. There is. Therefore, the second traverse mechanism 10 is located closer to the bobbin 3 than the first traverse mechanism. The second traverse mechanism finely traverses the yarn, and provides a traverse over the traverse by the first traverse mechanism.

The details of the second traverse mechanism are shown in FIG.
Through FIG. In the structure shown in FIG. 2, the grooved rotation guide 102 is attached to the tip of the motor 101. The groove of the grooved rotation guide 102 is bent and carved in the direction of the rotation axis of the guide. Therefore, when the grooved rotation guide 102 rotates due to the rotation of the motor 101, the yarn finely traverses in the axial direction of the bobbin by the groove. That is, the entire traverse is provided by the first traverse mechanism, and then the second traverse is provided.

The second traverse mechanism shown in FIG. 3 is different from that shown in FIG. That is, 103 is a vibrator, and 104 is a vibrating grooved guide attached to the vibrator 103. The vibrating grooved guide 104 is engraved with a linear groove and does not rotate. In this mode, the yarn is guided by the vibrating grooved guide 104, but since the vibrating grooved guide 104 is vibrated by the vibrator 103, the yarn is finely traversed while vibrating grooved guide 104. You will be able to repeat the second traverse after passing through. The aspect of FIG. 4 is very similar to that of FIG.
That is, in order to give a fine vibration, the vibrator 10
5 is the same as in the case of FIG. 3, but is different in that the guide for guiding the yarn is the vibrating snail guide 106. In the cases of FIGS. 3 and 4, the position of the second traverse mechanism is the same as in the case of FIG.

FIG. 5 shows a cross section of a PAN package obtained when winding is performed according to the prior art.
The surface of the package has irregularities, and the tapered portion 92 has a lump. Further, a yarn pool is formed in the yarn traverse turnback portion 91 to form a bump. Figure 6
Shows a cross section of a pan-shaped package obtained by the device of the present invention. In the package obtained by using the device of the present invention, the taper portion 94 as shown in FIG. Further, there is no bump in the yarn folding portion 93 due to the accumulation of the yarn.

The package obtained by the apparatus of the present invention has no tapering in the taper portion and no bumps due to the thread pool in the folded portion of the yarn, so that the winding shape can be improved and the commercial value can be increased. In addition, when unwinding, there is no omission of the loop, and smooth unwinding can be performed.
Furthermore, since the movement of the yarn from the large diameter portion to the small diameter portion, which is called yarn drop, is eliminated, the winding shape can be kept beautiful and the yarn is not disturbed when unwound. Further, since the winding hardness of the taper portion is increased, it is easy to handle.

In the device of the present invention, which is easy to handle and can obtain a package exhibiting excellent handleability, the second traverse is overlapped with the first traverse, and the second traverse is applied to the yarn. Since it is finely traversed and the second traverse speed can be easily controlled, it is possible to completely prevent the occurrence of the phenomenon called so-called ribbon winding, and it is completely distinguished from the yarn already wound. This is because the yarn is easily wound in the original section and is not pulled out from other portions that are in contact with each other by being wound around the portion.

The present invention having such an excellent effect is brought about by stacking the second traverse on the first traverse. In order to surely give the traverse effect by the second traverse mechanism to the first traverse, The traverse speed of the second traverse is preferably higher than the traverse speed of the first traverse, more preferably 1.5 times or more the traverse speed of the first traverse 1
A speed up to about 00 times is preferable, and most preferably about 3 to 5 times the traverse speed of the first traverse.

The traverse width of the second traverse may be small, but is preferably 3 to 20 mm. Further, the position of the second traverse mechanism should be as close to the package as possible in order to reliably give the traverse effect of the second traverse mechanism to the traverse of the first traverse mechanism. Positions that are ~ 200 mm apart are preferred.

[0018]

EXAMPLE A first traverse width is 250 to 400 mm, a second traverse width is 3 mm, and a first traverse speed is 6 m /
Min, the second traverse speed was set to 18 m / min, and 30 denier nylon 66 was drawn after melt spinning.
When the yarn was wound at a tension of 4.5 g and a yarn speed of 4000 m / min, a package having an excellent winding shape could be collected without dropping the yarn on the taper portion. In addition, there was no omission during unwinding. [Comparative Example] The first traverse speed was set to 6 m / min, the second traverse was stopped, and the other conditions were wound in the same manner as in the example, but the taper part was observed to have peeling. The softness has deteriorated.

[0019]

EFFECTS OF THE INVENTION Since the present invention has the above-mentioned structure, when the yarn is wound onto the bobbin, a bun with an excellent winding appearance can be obtained, and when unwound from the bun, no slipping out occurs smoothly. You can unravel. Therefore, according to the present invention, even when the bobbin is transported, the winding can be prevented from being collapsed at all, and the excellent winding pattern can be obtained. In addition, the present invention is a winding device which is easy to handle and has an excellent winding shape, and a winding device capable of high-speed winding. It is possible to obtain an excellent product and to provide an excellent winding device that is highly practical.

[0020]

[Brief description of drawings]

FIG. 1 is an overall perspective view showing an embodiment of the present invention.

FIG. 2 is a perspective view showing an embodiment of a second traverse mechanism.

FIG. 3 is a perspective view showing another embodiment of the second traverse mechanism different from that of FIG. 2;

FIG. 4 is a perspective view showing an embodiment of a second traverse mechanism different from those in FIGS. 2 and 3.

FIG. 5 is a front sectional view taken along the bobbin center line of a PAN-shaped package obtained by a winding device according to the related art.

FIG. 6 is a front sectional view taken along the bobbin center line of a pan-shaped package obtained by the device of the present invention.

[0021]

[Explanation of symbols]

 1: Spindle 2: Spindle motor 3: Bobbin 4: Traverse cylinder 41: Actuating rod 5: Guide rail 6: Slider 7: Rack and pinion 8: Rotary encoder 9: Package 91: Folding part 92: Taper part 93: Folding part Part 94: Tapered part 10: Second traverse mechanism 101: Motor 102: Rotating guide with groove 103: Vibrator 104: Guide with vibration groove 105: Vibrator 106: Vibration snail guide 11: Swing fulcrum guide 12: Frame 13: Bracket

Claims (2)

[Claims] 1. A yarn winding device including a first traverse mechanism for moving a yarn relative to a spindle relative to a spindle axis direction to form a bun on a bobbin on the spindle. In addition to the above, a yarn winding device comprising a yarn traversed by the first traverse mechanism, and a second traverse mechanism for giving a traverse by overlapping the traverse given by the first traverse mechanism. 2. The traverse speed of the second traverse mechanism is
The yarn winding device according to claim 1, wherein the yarn winding device has a traverse speed higher than that of the first traverse mechanism. [0001]