JP2001295150A - Yarn heating apparatus in drawing-false twist texturing machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a yarn heating apparatus for saving an energy and a space in a drawing false twist texturing machine. SOLUTION: In a draw false-twist texturing machine equipped with a heater H1 for texturing to form a yarn heating and traveling route in the longitudinal direction at the upstream side of a twister NT, this yarn heating apparatus in the drawing-false twist texturing machine is characterized in that the heater means is equipped with the first traveling route 21a for traveling a yarn Y1 to be treated from a yarn feeding source in one spindle from one end side to the other end side in the longitudinal direction and the second traveling route 21b for traveling a yarn Y2 to be treated from a yarn feeding source in another spindle from the other end side to one end side in the longitudinal direction.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a yarn heating device in a draw false twisting machine, and more particularly to a yarn heating device in which two to-be-processed yarns run in opposite directions in one heater means. TECHNICAL FIELD The present invention relates to a yarn heating device in a draw false twisting machine configured to cancel a by-product flow generated in the device, reduce heat release, and contribute to reduction of power consumption.

[0002]

2. Description of the Related Art As is well known, a draw false twisting machine applies texture processing to a melt-spun synthetic fiber yarn. As shown in FIG.
Filament yarn Y unwound from a yarn supply package PS supported on a yarn supply creel stand 32 provided along
To the first feed roller F1 via the primary heater H1 for texturing, the cooling plate 33 and the nip twister NT, and then the second feed roller F1.
In the process leading to 2, the filament yarn Y is false-twisted and heat-set while being stretched, bulk processing is applied to the filament yarn Y, and the secondary yarn is passed through a secondary heater H2 for setting and a third feed roller F3. It is designed to be wound around a winding package PW.

[0003] In a conventional draw false twister, the structure of the primary heater H1 for texturing is shown in FIG.
A description will be given based on FIG. 4 and FIG. The primary heater H1 for texturing includes a yarn running path 3 that opens outwardly through a yarn insertion port 35 extending in the longitudinal direction.
6, the yarn Y to be processed is inserted into the yarn traveling path 36 from the side of the yarn insertion port 35, and is caused to travel along the yarn traveling path 36 so that heat is applied to the yarn Y to be traveling. It was made. The above-mentioned primary heater H1 is set at a considerably high position as shown in FIG. 5 due to the overall design of the drawing false twisting machine. Therefore, a shifter is used as a means for passing the filament yarn Y through the yarn traveling path in the primary heater H1.

[0004] The primary heater H for texturing
1 is a long heating plate 37 having a rectangular cross section arranged at the center.
A first heat insulating plate 38 and a second heat insulating plate 39 in a vertical state located on both left and right sides of the heating plate 37 with an interval, and a third heat insulating plate 40 in a horizontal state positioned above and below the heating plate 37 And having a fourth heat insulating plate 41 in a vertical state,
Yarn running path 3 opened outward by yarn insertion ports 35 extending in the longitudinal direction on both left and right sides of heating plate 37.
6, 36 are formed. A heating element 42 is embedded inside the heating plate 37. The heating plate 37 and the heat insulating plates 38, 39, 40, 41 are assembled by an appropriate cover member.

[0005] The primary heater H1 is connected to the heating plate 37.
A yarn running guide member G is provided between the heat-insulating plates 38 and 39 located on the left and right sides. The yarn traveling guide member G
Consists of a roller-shaped guide with a V-groove on the peripheral surface, made of ceramic in order to improve the abrasion resistance to the yarn, and formed in a thin hollow so as to withstand sudden temperature changes. Used.

[0006]

The conventional draw false twisting machine is
As shown in FIG. 5, first, a point that each of the weights is provided with a primary heater H1 is provided, and second, a yarn to be processed is one for each primary heater H1 of each weight. The third feature is that the primary heater H1 of each weight is installed in an inclined state.

[0007] That is, regarding the first point, by design,
In terms of power consumption, it is extremely uneconomical. Regarding the second point, when the yarn to be processed passes through the primary heater H1, which is in a high-temperature atmosphere, heat is released outside the heater by the accompanying flow of the yarn. This causes energy loss (in this regard, as is apparent from FIG. 4 shown as a conventional example, the temperature distribution of the yarn guide in the primary heater H1 before the yarn is threaded on the yarn guide G). Comparing with the temperature distribution of the yarn guide in the primary heater H1 after the yarn was wound on the yarn guide G, it was found that heat was moving in the running direction of the yarn.) Further, regarding the third point, the overall height of the machine is increased.

In view of the above, the present invention provides a draw false twisting machine as described above, which comprises a single primary heater H1 that shares a two-weight primary heater H1 and a yarn to be processed is provided in the single primary heater H1. It is an object of the present invention to provide a yarn heating device in a draw false twisting machine which is configured to run the yarns in opposite directions to each other to solve the above-mentioned conventional problems.

[0009]

In order to achieve the above object, the present invention specifically comprises a heater means for forming a yarn heating space along the longitudinal direction on the upstream side of the twister. In the drawing false twisting machine, a yarn heating device in the drawing false twisting machine is configured such that two to-be-processed yarns run in opposite directions in one yarn heating space of the heater means.

Further, the present invention provides a drawing false twisting machine provided with a texturing heater means for forming a yarn heating space along the longitudinal direction on the upstream side of the twister. A first traveling path in which the yarn to be processed from one of the weights from the yarn supply source runs from one end to the other end in the longitudinal direction; And a second running path running from the end side toward the one end side.

Further, the present invention also constitutes a yarn heating device in a draw false twisting machine in which the heater means is installed horizontally.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a yarn heating device in a draw false twisting machine according to the present invention will be described in detail based on a specific embodiment shown in the drawings. FIG. 1 shows a specific example of a draw false twisting machine to which a yarn heating device is applied according to the present invention, and is a side view schematically showing the entire structure of the draw false twisting machine. is there. Furthermore, FIG.
FIG. 2 is a schematic cross-sectional view of a primary heater H <b> 1 taken along a line XX in FIG. 1 in the yarn heating device in the draw false twisting machine according to the present invention.

First, referring to FIG. 1, the overall configuration of a draw false twister to which the present invention is applied will be described. In FIG. 1, the drawing false twisting machine is configured so as to be symmetrically juxtaposed with respect to a center line CL, and is composed of a plurality of stretching false twisting machines arranged in the thickness direction of the paper. The draw false twister guides a filament yarn Y unwound from a yarn supply package PS supported on a yarn supply creel stand 2 provided along the machine base 1 to a first feed roller F1, and a texturing heater. Through the means H1, the cooling plate 3, and the nip twister NT, the filament yarn Y is false-twisted and heat-set while being stretched in the process of reaching the second feed roller F2, and the filament yarn Y is subjected to bulk processing. Setting heater H2, 3rd
Is wound around the winding package PW in the winder 4 via the feed roller F3. In the figure, reference numeral WS indicates a work space for an operator.

In particular, in the present invention, the filament yarn Y1 unwound from the yarn supply package PS supported on the yarn supply creel stand 2 on the left side of the center line CL in FIG.
Travels from the left end side to the right end side of the texturing heater means H1, and the right cooling plate 3
And nip twister NT, second feed roller F
2. The winding is wound on a winding package PW in the winder 4 via a setting heater H2 and a third feed roller F3. On the other hand, the filament yarn Y2 unwound from the yarn supply package PS supported by the yarn supply creel stand 2 on the right side of the center line CL travels from the right end to the left end of the texturing heater means H1, The left winding plate 3 and the nip twister NT, the second feed roller F2, the setting heater H2, and the third feed roller F3 pass through the winding package PW in the winder 4.

FIG. 2 shows an example of a specific configuration of the texturing heater means H1 in the present invention. The heater means H1 according to this example is composed of a long heating plate 11 having a rectangular cross section arranged at the center, and a first heat insulating plate (not shown) in a vertical state located on both left and right sides of the heating plate 11 at intervals. ) And a second heat insulating plate 13, and a third heat insulating plate 14 in a horizontal state and a fourth heat insulating plate 15 in a vertical state positioned above and below the heating plate 11. Yarn running paths 18 and 19 which are opened outward are formed by the yarn insertion ports 16 and 17 extending along the longitudinal direction. A heating element 20 is embedded inside the heating plate 11. The heating plate 11 and the heat insulating plate are assembled by an appropriate cover member. In the heater means H1, metal blocks 8, 9, and 10 are provided so as to surround the yarn insertion ports 16, 17.

The heater means H1 is provided with a yarn running guide member G between the metal block 8 and the metal block 9 and between the metal block 8 and the metal block 10. The thread running guide member G has two V
It is made up of a roller-shaped guide having grooves 21a and 21b, made of ceramic to improve the abrasion resistance to the yarn, and formed in a thin hollow so as to withstand a sudden temperature change. I have.

In the present invention, the heater means H1
Are two V-grooves 2 provided on the yarn running guide member G.
1a and 21b, for example, one V-groove 21a
The filament yarn Y1 unwound from the yarn supply package PS supported by the yarn supply creel stand 2 on the left side is
In FIG. 2, the filament yarn is set so as to travel from the front to the back in the thickness direction of the paper, and is unwound from the yarn supply package PS supported by the yarn supply creel stand 2 on the right side in the other V groove 21b. Y2 is set so as to travel from the back in the thickness direction of the paper toward the front.

[0018]

The yarn heating device in the draw false twisting machine according to the present invention having the above-described structure is designed to allow two yarns to run in one yarn heating space, thereby saving the constituent members. It can be said that it works extremely effectively in terms of realization of space saving and space saving of installation floor area.

Further, according to the yarn heating device in the draw false twisting machine according to the present invention, one primary heater H1 includes:
In the configuration in which the yarns to be processed are made to run in opposite directions to each other, the accompanying flow generated by the running of the yarns to be processed is offset, the heat release in the primary heater H1 is reduced, and the power consumption is reduced. It can be said that it works very effectively also in the point that it can be reduced.

Further, according to the yarn heating device in the draw false twisting machine according to the present invention, one primary heater H1 can be installed horizontally, and the overall height of the machine can be reduced. It can be said that it acts on.

[Brief description of the drawings]

FIG. 1 shows a specific example of a draw false twisting machine to which a yarn heating device is applied according to the present invention, and the whole of the draw false twisting machine is schematically shown. FIG.

FIG. 2 is a schematic cross-sectional view of a primary heater H1 of the yarn heating device in the draw false twisting machine according to the present invention, taken along a line XX in FIG.

FIG. 3 is a schematic cross-sectional view of a primary heater in a conventional draw false twister.

FIG. 4 is a schematic side view showing a primary heater in a conventional draw false twisting machine, and FIG. 4A is a schematic side view showing a state in which a yarn is running in the primary heater. FIG. 3 is a graph showing a state of a temperature change in the primary heater when the yarn is running in the primary heater and when the yarn is not running.

FIG. 5 is a schematic side view showing a specific configuration example of a conventional draw false twisting machine.

[Explanation of symbols]

 Y filament yarn H1 texturing heater means H2 setting heater means NT nip twister 1 machine stand 2 yarn feed creel stand 3 cooling plate 4 winder F1 first feed roller F2 second feed roller F3 third feed roller 16 , 17 Thread insertion port 18, 19 Thread travel path G Thread travel guide member 21a, 21b Two V grooves

Claims (3)

[Claims] 1. A drawing false twisting machine comprising a heater means for forming a yarn heating space along a longitudinal direction on an upstream side of a twister, wherein one of the heater means has two yarn heating spaces. A yarn heating device for a draw false twisting machine, wherein the yarns to be processed are run in opposite directions to each other. 2. A draw false twisting machine provided with a texturing heater means for forming a yarn heating space along a longitudinal direction on an upstream side of a twister, wherein the yarn heating space is supplied by one spindle. A first traveling path for traveling the yarn to be treated from the yarn source from one end side in the longitudinal direction to the other end side, and a yarn to be treated from the yarn supply source in another weight at one end from the other end side in the longitudinal direction; And a second running path running toward the side. 3. The yarn heating device in a draw false twisting machine according to claim 1, wherein the heater is installed horizontally.