JPH08199445A - Cooling plate - Google Patents

Abstract

PURPOSE: To provide a cooling plate which does not disturb the yarn-threading to a heater. CONSTITUTION: A cooling plate 4 moves to a position straying from the extension of a yarn running path on a heater 3 when yarn-threading to the heater 3. A yarn guide 46 may be mounted to move a yarn-guiding path onto the extension of the yarn running path on the heater 3. This yarn guide 46 is constituted with a slit pipe having a slit on the upper side along the axis line.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is provided in a false twisting machine, a drawing false twisting machine, etc. between a first heater and a twisting device.
The present invention relates to a cooling plate that suppresses ballooning of a yarn that has passed through a first heater and cools the yarn.

[0002]

2. Description of the Related Art In recent years, a non-contact high-temperature tubular heater having good thermal efficiency has been developed in place of a slit type heater. Even in this heater, a balloon stopper guide for suppressing ballooning of running yarn is used as a yarn path. A plurality of arcs are provided. In a straight yarn pass type false twisting machine in which a cooling plate is arranged in a substantially straight line subsequent to the first heater, the yarn Y path shown in FIG. 4 or 5 is taken depending on the direction of the arc of the yarn path of the heater. Is possible. In both figures, 3 is a heater and 4 is a cooling plate.

[0003]

Along with the development of the non-contact high-temperature tubular heater, a threading device for flying the yarn by the air ejected from the nozzle is also being developed. If you try to fly the yarn to the twisting device or the second heater downstream of the cooling plate 4, the yarn that is sucked by the hand soccer and running is not twisted, so the running yarn Y is stretched on the mirror surface of the cooling plate 4. As a result, the speed is reduced, and as a result, the time of staying inside the heater 3 becomes longer and the heater 3 melts.

Therefore, the guide 9 shown by the dotted line in FIGS.
It is also conceivable that the heater 3'is installed so that the cooling plate 4 is not located in the extension of the yarn path as shown by the dotted line.
It will not be a straight yarn pass in the strict sense. Moreover, as can be seen from FIGS. 4 and 5,
The height of the machine is high, and the overall height is high.

An object of the present invention is to provide a cooling plate which does not interfere with threading through a heater.

[0006]

In order to achieve the above object, the cooling plate of the present invention moves to a position deviated from the extension of the yarn path of the heater when the yarn is threaded through the heater. It is possible to attach a yarn guide for moving the yarn path to an extended position of the yarn path of the heater, and the yarn guide may be a slit pipe having a slit above along the axis.

[0007]

In the cooling plate constructed as described above, when threading the heater, the cooling plate moves from the extended position of the yarn path of the heater, and any member that interferes with the threading is placed at the extended position. Also disappears. Further, when the yarn guide is attached, the yarn guide path of the yarn guide moves to the extended position of the yarn path of the heater as the cooling plate moves, so that the threading is reliably performed.

[0008]

EXAMPLES Examples of the cooling plate of the false twisting machine of the present invention will be described with reference to FIGS.

This cooling plate is used as the cooling plate 4 in the drawing false twisting machine shown in FIG. 1, for example. This draw false twisting machine includes a creel stand 1 on which a yarn supply package 2 in which partially drawn yarn is wound, a first heater 3, a cooling plate 4,
The twisting device 5, the second heater 6, and the take-up winder 7 that forms the winding package 8 of the processed yarn are already known. In this drawing false twisting machine, the yarn Y is false twisted by the twisting device 5 and spreads to the first heater 3. Thereupon, the yarn Y is plasticized and advances to the cooling plate 4 to fix the twisted state. When passing through the twisting device 5, the opposite twist is applied,
Crimps appear on each filament and become bulky. After that, the process proceeds to the second heater 6, the torque is reduced, and the wound package 8 is wound up. Meanwhile, the yarn Y is about 1.2 times as large as that of the polyamide yarn and about 1.
Each is stretched 6 times. In addition, [A] is a threading device for the first heater 3.

The cooling plate 4 itself is basically the same as the balloon plate used in the conventional false twisting machine, drawing false twisting machine and the like. That is, the cross section has an inverted V shape as shown in FIG. 3 and is long.
In addition, the central portion is curved downward over the entire length to prevent the yarn from jumping out during ballooning. The material is stainless steel with good wear resistance.

The cooling plate 4 as described above is rotatably supported by the fixed shaft 41 fixed to the machine frame at the back portion on the downstream side. Further, a pin receiver 42 having a long hole 42a oriented in the length direction is fixed to the back portion on the upstream side of the cooling plate 4.

On the other hand, the machine frame is provided with another fixed shaft 43 at substantially the same height as the fixed heater 41 and closer to the first heater 3. An intermediate portion of the operation lever 44 is rotatably supported on the fixed shaft 43.

A pin 45 is fixed to the upper end of the operating lever 44, and the pin 45 is engaged with the elongated hole 42a of the pin receiver 42.

Therefore, when the operating lever 44 is rotated in the direction of the arrow in FIG. 2, the pin 45 moves in the elongated hole 42a, so that the cooling plate 4 moves from the position indicated by the solid line 1 to the fixed shaft 41 as a fulcrum. Rotate to the position indicated by the dotted line,
The upstream side deviates from the yarn path of the first heater 3. Since the cooling plate 4 is provided following the yarn path of the first heater 3 and is curved, the entire upstream side of the cooling plate 4 deviates from the extension of the yarn path of the first heater 3 so that It will deviate from the extension of the thread path. Therefore,
At the extended position of the yarn path of the first heater 3, there is no member that interferes with threading.

Below the cooling plate 4,
If necessary (when the force of the air jetted from the nozzle of the threading device is weak, etc.), the slit 46 is provided upward along the axis.
A thread guide 46 formed of a slit pipe in which a is formed is provided.

The thread guide 46 includes two belt-shaped members 47,
It is integrated with the cooling plate 4 by 48 and can rotate together with the cooling plate 4 with the fixed shaft 41 as a fulcrum.

The thread guide 46 is normally located at a position deviated from the extension of the yarn path of the first heater 3, but when threading the first heater 3, the operating lever 44 is operated to move the cooling plate 4 to the first heater 3. When distracting from the yarn path extension of
The yarn guide path 46b is designed to move to an extended position of the yarn path of the first heater 3.

Therefore, at the time of threading, the thread Y rides on the air flow ejected from the nozzle of the threading device and the first heater 3
The yarn guide 46 is blown off from the exit and the air flow
The yarn is guided along the yarn guide path 46b, and the yarn can be advanced on the twisting device 5, the second heater 6, and the like. Moreover, regardless of the presence or absence of the yarn guide 46, the yarn path is not bent between the first heater 3 and the cooling plate 4 as in the conventional case, so that it is not necessary to increase the height of the machine. In addition to this, the thread guide 46 may be composed of two members that are close to each other and are formed into a tubular shape immediately before threading.

[0019]

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

That is, since the cooling plate can be dislocated from the extension of the yarn path of the heater only when threading the yarn through the heater, the yarn can be easily hooked on a distant member. Moreover, since the yarn path is not bent between the heater and the cooling plate, it is not necessary to increase the height of the machine.

[Brief description of drawings]

FIG. 1 is a side view of a drawing false twisting machine.

FIG. 2 is a side view showing the relationship between the cooling plate and the heater of the present invention.

FIG. 3 is a front view of the cooling plate of the present invention.

FIG. 4 is a side view showing a relationship between a conventional cooling plate and a heater.

FIG. 5 is a side view showing a relationship between a conventional cooling plate and another heater.

[Explanation of symbols]

 3 Heater (1st heater) 4 Cooling plate 41 Fixed shaft 42 Pin receiving 42a Long hole 43 Fixed shaft 44 Operating lever 45 Pin 46 Thread guide (slit pipe) 46a Slit 46b Thread guide

Claims (3)

[Claims] 1. A cooling plate that moves to a position deviated from the extension of the yarn path of the heater when threading the heater. 2. The cooling plate according to claim 1, further comprising a yarn guide that moves the yarn guide path to an extended position of the yarn path of the heater during movement. 3. The cooling plate according to claim 2, wherein the thread guide is a slit pipe having a slit upward along the axis.