JP2577002Y2 - Conveyor tray for winding package - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a transport tray for supporting and transporting a wound yarn package.

[0002]

2. Description of the Related Art When unwinding a yarn wound on a package, for example, when rewinding a yarn from cone to cone,
The unwinding is performed on the axis of the package through a yarn guide provided at a fixed distance from the package.

In the above-described method for unwinding a wound yarn package, the unwinding tension of the yarn tends to increase as the unwinding of the yarn proceeds and the diameter of the package decreases. The variation in the unwinding tension is caused by a change in ballooning of the unwound yarn due to a change in the package diameter. Therefore, the unwinding tension of the package differs greatly between the start and the end of the unwinding of the package, which may cause a quality fluctuation in the subsequent processing of the unwound yarn.

On the other hand, the unwinding tension of a package having a constant diameter varies depending on the length between the yarn guide and the package with which the unwinding yarn first comes into contact, that is, the length of the balloon forming region (balloon length). It has been found that the unwinding tension becomes smaller as the value of is reduced.

Japanese Unexamined Patent Publication No. Hei 4-86666 discloses that the unwinding tension can be reduced from the start to the end of unwinding by taking advantage of the fact that the unwinding tension is reduced as the balloon length is reduced. A yarn unwinding device is disclosed. The above-described yarn unwinding device allows the package support to be vertically displaced in accordance with a change in package weight by supporting the package support in a suspended state by a spring, and connects the guide of the unwound yarn to the guide and the package support. The package support and the unwinding yarn guide are provided with a link mechanism that can be displaceably supported on a line and can move the unwinding yarn guide closer to the package supporting direction according to the upward displacement of the package support due to a decrease in the package weight. Is provided between them.

That is, the unwinding tension, which rises as the unwinding of the wound package progresses, is canceled out by reducing the unwinding tension by reducing the balloon length, so that the unwinding tension is kept constant.

[0007]

However, in the above-described yarn unwinding device, the use of the link mechanism in the unwinding device not only complicates the device, but also causes the package transported from the previous process by the transport tray. Must be replaced with the above-described yarn unwinding device, and a device for that purpose must be installed.

[0008] The present invention solves the current inconvenience described above,
The present invention proposes a simple structure of a winding yarn package transfer tray that can maintain a constant unwinding tension from the start to the end of the yarn unwinding without changing the package conveyed from the previous process to a special device. .

[0009]

In order to achieve the above-mentioned object, in the conveying tray of the winding package according to the present invention, a yarn guide is provided on the winding package axis for controlling the balloon when the winding is unwound. in the transport tray of the winding yarn package the yarn is unwound through the plate portion of the carrier tray body
On the column extending vertically from the center of the
Can be attached to the transport tray body by the fitted spring
And a peg supported by the
The upper end of the spring is located above the mounting part
And

[0010]

In the transport tray of this winding package, as the unwinding of the winding package progresses and the weight of the winding package is reduced, that is, as the package diameter decreases, the winding package controls the balloon by the action of the spring. Moving toward the yarn guide, the distance between the winding package and the yarn guide, that is, the balloon length is reduced.

[0011]

1 and 2 show an embodiment of the present invention. This embodiment shows a case where the wound yarn package to be placed is a cone winding. Hereinafter, details of the embodiment will be described with reference to the drawings.

As shown in FIG. 1, the transport tray 1 comprises a transport tray body 2 and a peg 4 movably supported on the transport tray body 2 via a spring 3 on the transport tray body 2. The winding package 6 wound around the winding tube 5
Is supported on the transport tray 1 by inserting the winding tube 5 into the peg 4.

The transport tray main body 2 comprises a plate portion 2a and a cylindrical portion 2b extending vertically from the center of the plate portion 2a. An annular regulating claw 2c for regulating the movable range of the peg 4 mounted on the cylindrical portion 2b is provided on a part of the outer peripheral surface of the cylindrical portion 2b. On the other hand, the peg 4 has a tapered substantially cylindrical shape similar to the winding tube 5 of the cone-shaped winding package 6, and has an inner diameter substantially equal to the outer diameter of the cylindrical portion 2b of the transport tray main body 2 at one end 4a. The portion other than the one end 4a has an inner diameter corresponding to the diameter of the spring 3 described later. When the winding package is a cheese winding, the peg 4 has a substantially cylindrical shape without taper. Further, a package mounting portion 4b having a diameter larger than the diameter of the winding tube 5 for mounting the winding yarn package 6 is formed at the other end of the one end portion 4a.

The peg 4 is a cylindrical portion 2b of the transport tray body 2.
Is fitted through the spring 3. That is, the spring 3 is fitted on the outer periphery of the cylindrical portion 2 b of the transport tray main body 2, and the peg 4 is fitted on the outer periphery of the spring 3. At this time , the upper end of the spring 3
Step 4c of peg 4 so as to be located above section 4b
And movably supports the pegs 4 with respect to the transport tray main body 2 . The winding package 6 is held on the transport tray 1 configured as described above by engaging the winding tube 5 with the peg 4.

The wound yarn package 6 is unwound while controlling the balloon 8 by passing the unwound yarn through a yarn guide 7 provided on the axis of the package 6. As the yarn is unwound, the weight of the winding package 6 is reduced, and by the action of the spring 3, the peg 4 on which the winding package 6 is placed is raised in the direction of the yarn guide 7, and the winding package 6 and the yarn guide 7, that is, the balloon length L gradually decreases (FIG. 2).

It is to be noted that if the spring 3 is made of a material having an elastic force which slightly shrinks with an empty package mounted thereon and does not completely shrink even with a full package mounted thereon. From the start to the end of the yarn unwinding, a constant reduction rate of the balloon length L can be obtained with respect to the weight change of the winding package.

In the above-described transport tray structure, as the winding of the winding package progresses and the weight of the winding package decreases, that is, as the package diameter decreases, the winding package moves toward the yarn guide by the restoring force of the spring. Then, the distance between the wound package and the yarn guide, that is, the balloon length is reduced, and the increase in the unwinding tension due to the decrease in the package diameter is canceled out by the reduction in the unwinding tension by reducing the balloon length. A change in unwinding tension until the end is prevented, and the yarn can be unwound with a constant tension.

[0018]

As described above, in the winding tray of the winding package according to the present invention, when unwinding the yarn, the yarn is unwound through the yarn guide provided on the axis of the winding package and controlling the balloon. In the transporting tray of the winding package, the winding package is supported via a spring, so when unwinding the package transported by the transport tray from the previous process, the package is replaced with an unwinding device. Without changing the unwinding tension from the start to the end of unwinding, the yarn can be unwound with a constant tension while being installed on a transport tray having a simple structure. Also, above the peg package
The upper end of the spring is located toward
Yarn unwinding device by lowering the position of the package placed on the
Height can be reduced.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view illustrating an embodiment of a transport tray of a winding package according to the present invention.

FIG. 2 is a cross-sectional view showing a transport tray of a winding package during unwinding of the yarn.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Conveyance tray 3 Spring 6 Winding package 7 Thread guide 8 Balloon

──────────────────────────────────────────────────続 き Continued on front page (58) Field surveyed (Int.Cl. ⁶ , DB name) B65H 49/00-49/38 B65H 67/00-67/06 B65H 57/22

Claims (1)

(57) [Scope of request for utility model registration] 1. A transporting tray for a winding package, wherein the yarn is unwound through a yarn guide provided on the winding package axis for controlling a balloon when the winding yarn is unwound .
A cylinder that extends vertically from the center of the plate part of the ray body
And transported by the spring fitted on the outer periphery of the cylindrical part
A peg movably supported with respect to the tray body,
Upper end of the spring above the peg's package rest
A transport tray for winding yarn packages, characterized in that: