JPH07133056A - Winder - Google Patents

Abstract

PURPOSE:To prevent the contact of a yarn layer with a punch guide even if a bulge is generated at the end part of a taking-up package by arranging the punch guide so that a yarn regulating part is positioned slightly inside from the end part of a bobbin held on a cradle. CONSTITUTION:A winder is equipped with a yarn relaying device, suction mouth, traverse drum 1, etc., between a yarn feeding package and a taking-up package. An autodoffer (doffing device) travels in the upper part of the winder, and the delivery of the package from a cradle 2 and the insertion of a vacant paper tube to the cradle 2 are carried out. In this case, the plate-shaped punch guide 5 is arranged in the horizontal direction on the lower side along the outer periphery of the paper tube B, so that the left side end (yarn regulating part) 5a is positioned slightly inside from the large diameter side end part of the conical paper tube B held between the large and small diameter side bearing centers 3 and 4 of the cradle 2. Accordingly, the deflection of the punch roll from the paper tube B can be prevented effectively.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a winder capable of performing so-called bunch winding, in which a yarn is wound around an end of a paper tube (bobbin) several times before forming a winding package.

[0002]

2. Description of the Related Art A conventional winder, as shown in FIGS. 4 and 5, has a vertical shape extending downward along the outer circumference of a paper tube B slightly inside the conical paper tube B held by a cradle. There is provided a plate-shaped bunch guide 5 ′ facing toward. In this winder, when the conical paper tube B is supplied from the auto doffer to the cradle, the yarn end Y on the yarn supplying package side
Is sandwiched between the large-diameter side bearing center of the cradle and the paper tube B, and when the thread Y is brought closer to the large-diameter side end of the paper tube B by the thread shifting lever, the thread Y of the bunch guide 5'is The tip 5'a bent to the left is contacted and guided to the right. When the traverse drum rotates in this state, the yarn Y drawn out from the yarn supplying package advances along the right side surface of the bunch guide 5 ′ and is wound around the large diameter side end of the paper tube B several times. This is the conventional bunch winding.

[0003]

When the yarn Y drawn from the yarn supplying package after the bunch winding Ya is wound around the paper tube B, the yarn Y is relatively hand-knitted yarn, fan yarn, jeans yarn or the like. When the yarn is highly stretchable, the yarn shrinks due to the release of tension after winding, and
As shown in (1), a so-called chrysanthemum (bulge), in which the thread rises and jumps out at each end of the package P, is bulged from the regular end face indicated by the chain line. Therefore, in the conventional winder, the puffed large-diameter side end of the package P may come into contact with the lower left side surface of the bunch guide 5 ', causing thread breakage. Further, when the paper core B is short, if the bunch guide 5'is placed on the right side so as not to contact the end portion of the package P, the bunch winding possible portion is very narrow, so the bunch winding may come off the paper core B. .

According to the present invention, even when a bulge occurs at the end of the package, the thread layer does not come into contact with the bunch guide, and the bunch winding does not come off from the paper tube even when a short paper tube is adopted. It is an object.

[0005]

In order to achieve the above object, the winder of the present invention is provided with a bunch guide so that the thread regulating portion is positioned slightly inside the end portion of the bobbin held by the cradle. Is.

[0006]

In the winder constructed as described above, since the bunch guide is not located inside the bunch winding position, even if a bulge occurs at the end of the winding package, the bunch guide does not hit the yarn layer. Further, regardless of the length of the bobbin, the yarn regulating portion of the bunch guide can be sufficiently brought close to the package end portion formation planned position.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT An embodiment of a winder according to the present invention will be described with reference to FIGS.

This winder W is a yarn supply package P1.
A yarn splicing device, a suction pipe that guides the yarn end on the yarn supply package side to the yarn splicing device, a suction mouth that guides the yarn end on the winding package side to the yarn splicing device, and a yarn. The basic structure is adopted, which has a tensor that pinches and gives an appropriate tension, and a traverse drum 1 that gives a traverse to the wound yarn by rotating in contact with a winding package. Descriptions thereof are omitted. On the upper part of the winder W, an auto doffer AD is running, and the auto doffer AD delivers the package P2 from the cradle 2 and inserts an empty paper tube (empty bobbin) into the cradle 2. I do. Further, the auto doffer AD also works when performing bunch winding.

In this winder, the cradle 2
Of the conical paper tube B held between the large-diameter side bearing center 3 and the small-diameter side bearing center 4 of the conical paper tube B so that the left edge (thread regulating portion) 5a is located slightly inward of the large-diameter side end of the conical paper tube B. A plate-shaped bunch guide 5 on the lower side along the outer circumference of the paper tube B
Are arranged sideways.

The bunch guide 5 has a shape as shown in FIG. That is, it is a plate having a curvature along the outer circumference of the paper tube B and having a positioning edge 5a on the left side. The bunch guide 5 is attached to the cradle 2 below the paper tube B with a small gap. The cutout groove 5b formed in the base portion of the bunch guide 5 is an engaging portion of a fixing screw for mounting the bunch guide 5, and the positioning edge 5a is positioned at the bunch winding portion of the paper tube B by the cutout groove 5b. , The horizontal mounting position is adjusted.

FIG. 1 shows a thread shifting lever 6 of the automatic doffer AD. A hook 6a is formed at the tip of the thread shifting lever 6 and is basically the same as that of the conventional one. Normally, as shown by a chain double-dashed line, the automatic doffer A
The hook 6a is stored in D and rotates during bunch winding so that the hook 6a faces below the large diameter side end of the paper tube B. However, in the present invention, the stop timing below the large diameter side end of the paper tube B is set to be slightly longer than that of the conventional one.

In the winder W thus constructed, the conical paper tube B is supplied from the auto doffer AD to the cradle 2, and the yarn end Y on the yarn supplying package P1 side is connected to the large diameter bearing center 3 of the cradle and the paper tube B. When the yarn Y is pulled by the yarn shifting lever 6 toward the large-diameter side end of the paper tube B, the yarn Y is abutted against the positioning edge 5a of the bunch guide 5. When the traverse drum 1 rotates in this state, the yarn Y drawn out from the yarn supplying package advances along the positioning edge 5a of the bunch guide 5 and is wound around the large diameter side end of the paper tube B several times.

When the yarn Y drawn out from the yarn supplying package is wound around the paper tube B to form the winding package P when viewed from the front at the height of the bunch guide 5, FIG.
As shown in (1), the positioning edge 5a of the bunch guide 5
Is located at the pole center of the winding package P. Therefore, even if a bulge occurs at the end of the winding package P, the swelling of the yarn layer at the center of the package P is negligibly small, and the yarn layer does not come into contact with the bunch guide 5. Even if the paper core is short, the package P
Since the positioning edge 5a can be sufficiently brought close to the position where the end portion is to be formed, it is possible to prevent the bunch winding from coming off the paper tube.

The example in which the thread shifting lever of the auto doffer is operated during the bunch winding has been described above. However, in a winder for doffing by hand without using the auto doffer, the thread shifting lever is operated by hand and the bunch winding is performed similarly. It can be performed.

[0015]

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

That is, since the yarn restricting portion of the bunch guide is arranged outside the bunch winding position, even if a bulge occurs at the end of the winding package, the yarn layer will not come into contact with the bunch guide. Even if the paper core is short, the bunch winding will not come off the paper core.

[Brief description of drawings]

FIG. 1 is a perspective view of a main part of a winder according to the present invention.

FIG. 2 is a schematic view of a winding package portion in the winder of the present invention, (1) is a front view and (2) is a side view on the large diameter side.

FIG. 3 is a perspective view of a bunch guide in the winder of the present invention.

FIG. 4 is a schematic perspective view of a package portion of a conventional winder.

FIG. 5 is a schematic view of a package portion in a conventional winder, (1) is a front view, and (2) is a side view on the large diameter side.

FIG. 6 is a side view of the winder.

[Explanation of symbols]

 2 Cradle 5 Bunch guide 5a Positioning edge B Paper tube

Claims (1)

[Claims] 1. A winder in which a bunch guide is arranged so that the thread regulating portion is located slightly inside the end portion of the bobbin held by the cradle.