JPH11292394A - Winding device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily change a Z-twist constitution into an S-twist constitution. SOLUTION: In a winding device provided with a cradle 2 to rotatably support a conical core tube to get in contact with a winding drum 1, the cradle 2 is provided with a large diameter side arm 2d including a large diameter side holder 5d to rotatably support a large diameter side end part of the core tube, and a small diameter side arm 2e including a small diameter side holder 5e to rotatably support a small diameter side end part of the core tube, and it is composed in such a way that a right-to-left position of it as seen from the front of the large diameter side arm 2d or the small diameter side arm 2e is arranged changeable.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a winding device for winding a yarn into a cone-shaped package, and more particularly to a winding device capable of easily changing from a configuration for Z twist to a configuration for S twist. is there.

[0002]

2. Description of the Related Art There are two types of yarn twisting: S twisting and Z twisting. As shown in FIG. 7, when the yarn is stretched up and down and viewed from the side, a twist that descends from left to right is seen at S.
Twisting and Z twisting are seen from the right to the left.

Normally, when a conical core tube is used in an automatic winder, a Z-twisted yarn is wound around a package, with the right side viewed from the front as the large diameter side and the left side as the small diameter side. When the package thus formed is unwound in a subsequent step, it is unwound from the small diameter side in order to unwind well.
Regarding the winding direction of the package in the automatic winder,
As described above, when the Z-twisted yarn is wound with the large diameter side on the right side, when the yarn is unwound from the small diameter side, the yarn is unwound while being twisted in the twisting direction.

[0004]

However, in some cases, the S-twisted yarn may be wound as a package by an automatic winder. This is because, for example, when weaving a cloth composed of a warp and a weft, if only a Z-twisted yarn is used as the warp, the entire finished cloth may be twisted in the Z-twist direction.

When winding the S-twisted yarn with the above automatic winder, the right-hand side as viewed from the front is the large-diameter side as in the case of the Z-twisted yarn.
If the left side is wound with the small diameter side, when unwinding the package from the small diameter side in the subsequent process, the yarn will be unwound while being twisted in the direction in which the yarn is untwisted, and the yarn strength will be weakened and Breaks frequently. Therefore, when winding the S-twisted yarn with the same automatic winder, it is necessary to wind the right-hand side as the small-diameter side and the left-hand side as the large-diameter side as viewed from the front, contrary to the Z-twisted state. Conventionally, when winding an S-twisted yarn instead of a Z-twisted yarn, for example, separately prepare a cradle dedicated to S-twisting,
The cradle for Z twist needs to be replaced from the cradle for S twist to the cradle for S twist, which is very inconvenient.

Accordingly, an object of the present invention is to solve the above-mentioned problem and to provide a winding device that can be easily changed from a configuration for Z twist to a configuration for S twist.

[0007]

To achieve the above object, the present invention provides a winding device having a cradle for rotatably supporting a conical core tube in contact with a winding drum.
The cradle includes a large-diameter arm including a large-diameter holder rotatably supporting a large-diameter end of the core tube, and a small-diameter holder rotatably supporting a small-diameter end of the core tube. A small-diameter arm, and the left and right positions of the large-diameter arm and the small-diameter arm viewed from the front can be rearranged.

The cradle is rotatably provided around a rotation axis orthogonal to the rotation axis of the winding drum, and the cradle is rotated about the rotation axis, so that the large-diameter arm and the small-diameter arm can be viewed from the front. The left and right positions may be rearranged.

The large-diameter arm and the small-diameter arm are detachable from the cradle via both mounting seats, and the two arms mounted on the two mounting seats are interchanged to thereby provide the large-diameter arm and the small-diameter arm. The left and right positions viewed from the front of the arm may be rearranged.

[0010]

An embodiment of the present invention will be described below in detail with reference to the accompanying drawings.

As shown in FIG. 5, the winding device of the present invention has a cradle 2 which can be tilted with respect to the winding drum 1. An inclined guide portion for discharging the package is provided behind the winding drum 1, and a fulcrum of the cradle 2 is provided below the inclined guide portion. Cradle 2 around this fulcrum
The package P can be pressed against the winding drum 1 by rotating and tilting the package P. The cradle 2 is raised as the package P grows. At the tip of the cradle 2, a holder 5 for holding the package P is provided.

A yarn supplying bobbin B is held below the winding drum 1. A yarn defect detecting device for detecting a yarn defect and cutting the yarn in the yarn path from the yarn supplying bobbin B to the package P. A device 7 and a yarn splicing device 8 for splicing are arranged.
During winding, the thickness of the yarn is constantly monitored by the yarn defect detector 7,
When a yarn defect is detected, the yarn is cut. After the yarn on the package P and the yarn on the yarn supplying bobbin B are spliced by the yarn splicing device 8, winding is resumed.

As shown in FIG. 6, in the winding device of the present invention, a cone-shaped paper tube 6 is used for winding a cone-shaped package. For this purpose, the large-diameter side holder 5
“d” has a convex portion fitted to the large-diameter opening end of the paper tube 6 and a flange having a larger diameter than the large-diameter opening end. The small-diameter holder 5e has a convex portion that fits into the small-diameter opening end of the paper tube 6, and a flange that is larger in diameter than the small-diameter opening end.

As shown in FIG. 1, a linear portion 2a is provided at the end of the cradle 2 at a position substantially at the center in the axial direction of the winding drum 1 and extending in a direction perpendicular to the rotation axis of the winding drum 1.
Are formed. A rotating part 2b is attached to the tip of the linear part 2a.
Is provided. The rotating part 2b includes the rotating part 2
A wing 2c extending on both sides in the radial direction of b is provided. Arms 2d and 2e bent at right angles are formed at both ends of the wing 2c. The rotating portion 2b has a rotation axis (dot-dash line) orthogonal to the rotation axis of the winding drum 1. If this rotating portion is rotated by 180 °, the wings are rotated by 180 ° and the two arms 2d and 2e. Will be replaced.

FIG. 1 shows a Z twist arrangement. That is,
The arm 2d located on the right side is the large-diameter arm 2d,
The arm 2e located on the left side is the small diameter side arm 2e.
A large-diameter-side holder 5d that holds the large-diameter-side shaft end of the package P is attached to the distal end of the large-diameter arm 2d. A small-diameter side holder 5e for holding the small-diameter side shaft end of the package P is attached to the distal end of the small-diameter side arm 2E. The tip of the large-diameter arm 2d is located higher than the tip of the small-diameter arm 2e.
The lower ridgeline of the package P supported and held by e is horizontal. At this ridge line, the package P and the winding drum 1 are in contact. The large-diameter arm 2d can be opened and closed by a hinge 2f, and is opened and closed when the paper tube 6 is attached and detached.

FIG. 2 shows an S-twist arrangement. That is,
The arm 2d located on the left side is the large-diameter arm 2d,
The arm 2e located on the right side is the small diameter side arm 2e.
The distal end of the large-diameter arm 2d is located higher than the distal end of the small-diameter arm 2e, and the lower ridgeline of the package P that is journalled and held by these two arms 2d and 2e is horizontal. At this ridge line, the package P and the winding drum 1 are in contact. Compared to the Z twist arrangement of FIG.
It can be seen that the S-twisted arrangement is at a position where the wing 2c has rotated less than 180 °. As described above, in the winding device of the present invention, the S-twisted arrangement and the Z-twisted arrangement can be rearranged by rotating the rotating unit 2b by a predetermined angle.

According to the present invention, the arrangement shown in FIG. 1 is used for winding the Z-twisted yarn, and when the S-twisted yarn is wound, the rotating unit is operated to bring the arrangement shown in FIG. This is convenient. Thus, even with a Z twisted yarn, S
Since even twisted yarn can be wound into a cone-shaped package, any package can be smoothly unwound.

Next, another embodiment of the present invention will be described.

As shown in FIG. 3, at the tip of the cradle 2, a linear portion 2a is located at substantially the center in the axial direction of the winding drum 1 and extends in a direction perpendicular to the rotation axis of the winding drum 1.
Are formed. A wing 2c extending on both sides in the horizontal direction is provided at the tip of the linear portion 2a. The wing 2c can be slid left and right. At both ends of the wing 2c, mounting seats for mounting the arms 2d and 2e are formed. The mounting seat is, for example, a screw hole, and the large-diameter arm 2d and the small-diameter arm 2e are provided with screws adapted to the screw holes. These two mounting seats are configured so that either the large-diameter arm 2d or the small-diameter arm 2e can be mounted.
When the two arms are replaced, the positions of the arms are replaced. 1 and 2, the large-diameter arm 2d can be opened and closed by a hinge 2f.

FIG. 3 shows a Z twist arrangement. That is,
The arm 2d located on the right side is the large-diameter arm 2d,
The arm 2e located on the left side is the small diameter side arm 2e.
At the end of the large-diameter arm 2d, a large-diameter holder 5d that holds the large-diameter shaft end of the package is provided. At the tip of the small-diameter arm 2e, a small-diameter holder 5e that holds the small-diameter shaft end of the package is provided. The distal end of the large-diameter arm 2d is located higher than the distal end of the small-diameter arm 2e, and the lower ridgeline of the package supported and held by these two arms is horizontal. At this ridge line, the package P and the winding drum 1 are in contact.
The package P is inclined because the mounting angle of the large-diameter arm 2d and the mounting angle of the small-diameter arm 2e are different from the wing 2c.

FIG. 4 shows an S-twist arrangement. That is,
The arm 2d located on the left side is the large-diameter arm 2d,
The arm 2e located on the right side is the small diameter side arm 2e.
The distal end of the large-diameter arm 2d is located higher than the distal end of the small-diameter arm 2e, and the lower ridgeline of the package supported and held by these two arms is horizontal. At this ridge line, the package P and the winding drum 1 are in contact. The package is inclined due to the difference between the mounting angle of the large-diameter arm 2d and the mounting angle of the small-diameter arm 2e with respect to the wing 2c. in this way,
In the winding device of the present invention, the large-diameter side arm and the small-diameter side arm are replaced with a common mounting seat, and by changing the respective mounting angles, the S-twist arrangement and the Z-twist arrangement can be rearranged. .

[0022]

The present invention exhibits the following excellent effects.

(1) The configuration for Z twisting can be easily changed from the configuration for Z twisting to the configuration for S twisting without requiring a special configuration for S twisting and without adding new members.

(2) Since either the Z-twisted yarn or the S-twisted yarn can be wound into a cone-shaped package in an appropriate direction, any of the packages can be smoothly unwound.

[Brief description of the drawings]

FIG. 1 is a front view of a cradle portion of a winding device according to an embodiment of the present invention.

FIG. 2 is a front view when the cradle portion of the winding device in FIG. 1 is rearranged.

FIG. 3 is a front view of a cradle portion of a winding device according to another embodiment of the present invention.

4 is a front view when the cradle portion of the winding device of FIG. 3 is rearranged.

FIG. 5 is a front view of the entire winding device.

FIG. 6 is a sectional view of a paper tube and a holder for a cone-shaped package.

FIG. 7 is a side view of S twisted and Z twisted yarns.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Winding drum 2 Cradle 2b Rotating part 2d Large diameter arm 2e Small diameter arm

Claims (3)

[Claims] 1. A winding device provided with a cradle rotatably supporting a conical core tube in contact with a winding drum, wherein the cradle rotatably supports a large-diameter end portion of the core tube. A large-diameter arm including a large-diameter holder; and a small-diameter arm including a small-diameter holder rotatably supporting a small-diameter end of the core tube. A winding device characterized in that the left and right positions viewed from the front can be rearranged. 2. The front surface of the large-diameter arm and the small-diameter arm by rotating the cradle about a rotation axis orthogonal to the rotation axis of the winding drum and rotating the cradle about the rotation axis. 2. The winding device according to claim 1, wherein the left and right positions viewed from the rear are rearranged. 3. The large-diameter side arm and the small-diameter side arm are detachable from the cradle via both mounting seats, and the two arms attached to the two mounting seats are interchanged. The winding device according to claim 1, wherein the left and right positions of the small-diameter arm viewed from the front are rearranged.