JPH0683666U - Roller package carrier tray - Google Patents

Abstract

(57) [Summary] [Purpose] When unwinding a wound package, keep the unwinding tension of the thread constant from the start to the end of unwinding. [Structure] A spring 3 is installed on a carrying tray 1 for supporting and carrying the wound yarn package 6, and the wound yarn package 6 is supported through the spring 3 so that the balloon length L becomes shorter as the unwinding progresses. did.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a transport tray that supports and transports a wound package.

[0002]

[Prior art]

 For example, when unwinding a yarn wound on a package, such as when rewinding the yarn from the cone to the cone, the unwinding is performed through a yarn guide provided at a certain distance from the package on the axis of the package.

In the unwinding method of the wound package described above, the unwinding tension of the yarn tends to increase as the unwinding of the yarn advances and the diameter of the package decreases. This variation in unwinding tension is due to the change in unwinding yarn ballooning with the change in package diameter. Therefore, the unwinding tension of the package greatly differs between the start and the end of the unwinding of the package, which may cause quality fluctuation in the subsequent processing of the unwinding yarn.

On the other hand, the unwinding tension of a package having a constant diameter changes depending on the length between the yarn guide and the package with which the unwinding yarn first contacts, that is, the length of the balloon forming region (balloon length), It is known that the unwinding tension decreases as the balloon length decreases.

According to Japanese Patent Laid-Open No. 4-86666, the unwinding tension becomes smaller as the balloon length becomes smaller, and therefore, when unwinding the wound yarn, the unwinding can be performed at a constant tension from the start to the end of the unwinding. A possible yarn unwinding device is disclosed. The above-mentioned yarn unwinding device is capable of vertically displacing the package supporting device in a suspended state by a spring by a spring so that the guide of the unwinding yarn and the package supporting device can be displaced. A link mechanism that can displaceably support on the line connecting the and and that can bring the guide of the unraveling thread closer to the package support tool according to the upward displacement of the package support tool due to the reduction of the package weight It is provided between the warp thread guide.

That is, the unwinding tension that increases as the unwinding of the wound package progresses is canceled by the decrease in the unwinding tension by decreasing the balloon length, and the unwinding tension is kept constant. .

[0007]

[Problems to be solved by the device]

 However, in the above-mentioned yarn unwinding device, not only the device is complicated by using the link mechanism in the unwinding device, but also the package transported from the previous process by the transport tray is replaced with the above yarn unwinding device. It was necessary to install equipment for it.

The present invention solves the above-mentioned inconvenience of the present situation, and can keep the unwinding tension constant from the start to the end of the yarn unwinding without replacing the package conveyed from the previous process with a special device. It proposes a winding package transport tray with a simple structure that can be used.

[0009]

[Means for Solving the Problems]

 In order to achieve the above-mentioned object, in the winding package carrying tray of the present invention, when unwinding the yarn, the yarn is unwound through a yarn guide that is provided on the axis of the winding package and controls the balloon. In the transport tray of the wound package, the wound package is supported via a spring.

[0010]

[Action]

 In the case of this winding package transport tray, as the unwinding of the winding package progresses and the weight of the winding package decreases, that is, the package diameter decreases, the winding package controls the balloon by the use of a spring. By moving toward the guide, the distance between the wound package and the yarn guide, that is, the balloon length is reduced.

[0011]

【Example】

 1 and 2 show an embodiment of the present invention. In the present embodiment, the case where the thread package to be placed is cone winding is shown. Hereinafter, details of embodiments will be described with reference to the drawings.

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

The carrier tray main body 2 is composed of a plate portion 2a and a cylindrical portion 2b extending vertically from the center position of the plate portion 2a. Further, an annular restricting claw 2c that restricts the movable range of the peg 4 mounted on the cylindrical part 2b is installed on a part of the outer peripheral surface of the cylindrical part 2b. On the other hand, the peg 4 has a 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 carrier tray main body 2 at one end 4a. Equally, the inner diameter corresponding to the diameter of the spring 3 described later is formed except for the one end portion 4a. When the wound package is cheese wound, the peg 4 has a substantially cylindrical shape without a taper. A package mounting portion 4b having a diameter larger than the diameter of the winding tube 5 is formed on the other end of the one end 4a for mounting the winding package 6.

The peg 4 is fitted on the columnar portion 2 b of the carrier tray body 2 via the spring 3. That is, the spring 3 is fitted on the outer circumference of the columnar portion 2 b of the carrying tray body 2, and the peg 4 is fitted on the outer circumference of the spring 3. At this time, the upper end 3a of the spring 3 engages with the step portion 4c of the peg 4 to support the peg 4. The winding package 6 is held by 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 the balloon 8 is controlled by allowing the unwound yarn to pass through the 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 the action of the spring 3 causes the peg 4 on which the winding package 6 is placed to move up toward the yarn guide 7 and the winding package 6 and the yarn. The distance to the guide 7, that is, the balloon length L becomes gradually smaller (FIG. 2).

It should be noted that the spring 3 has such an elastic force that it contracts to some extent when an empty package is placed, and does not completely contract even when a full package is placed. For example, it is possible to obtain a constant reduction rate of the balloon length L with respect to the weight change of the wound package from the start to the end of the unwinding.

In the structure of the above-mentioned carrying tray, as the unwinding of the winding package advances and the weight of the winding package decreases, that is, the package diameter decreases, the restoring force of the spring moves the winding package toward the yarn guide. However, the distance between the winding package and the yarn guide, that is, the balloon length, becomes smaller, and the increase in unwinding tension due to the decrease in the package diameter is canceled by the decrease in unwinding tension by decreasing the balloon length, and unwinding starts. The change in the unwinding tension from the end to the end can be prevented, and the yarn can be unwound with a constant tension.

[0018]

[Effect of device]

 As described above, in the winding package transport tray according to the present invention, at the time of unwinding, the yarn package is unwound through the yarn guide that is provided on the axis of the winding package and controls the balloon. Since the winding package is supported on the tray via the spring, when unwinding the package transferred by the transfer tray from the previous process, the package is not replaced by the unwinding device and is simple. The yarn can be unwound with a certain tension while preventing the change in the unwinding tension from the start to the end of the unwinding, while it is installed on the carrier tray of the structure.

[Brief description of drawings]

FIG. 1 is a cross-sectional view showing an embodiment of a carry tray for a wound package according to the present invention.

FIG. 2 is a cross-sectional view showing a transport tray of the wound yarn package when the yarn unwinding is in progress.

[Explanation of symbols]

 1 Carry tray 3 Spring 6 Winding package 7 Thread guide 8 Balloon

Claims (1)

[Scope of utility model registration request] 1. A carrier tray of a wound package in which a yarn is unwound through a yarn guide provided on the axis of the wound package and controlling a balloon during unwinding, and the wound yarn is wound via a spring. A carrier tray for a wound package, which supports the package.