JPH0959835A - Filament processing machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve operability of threading by forming a working passage-side surface of the lower end of a vertically standing heater in such a slope that the lower the surface is, the more deep backside it goes. SOLUTION: A running yarn Y is threaded along a yarn passage going through a lower space of a step 13a through a roller F4, which is a lower yarn-guiding device of a vertically standing heater H2. The surface of the heater H2 at the side of a working passage 13 is formed in such a slope 16 that the lower the surface is, the deeper backside it goes. This enables that the roller F4 is kept out of a blind position for a worker. The cutting off of a heat insulator 2 affects little on filament processing, and threading on a yarn-guiding device can be performed at an easy posture.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention has a heater vertically installed adjacent to a work passage, and a thread guide is provided below the heater so as to pass through the heater in the vertical direction and at the same time. The present invention relates to a filament processing machine which is opened to the side and is bent by the yarn guide tool to form a yarn path extending in the horizontal direction.

[0002]

2. Description of the Related Art A drawing false twisting machine, which is an example of a filament processing machine of this type, will be described with reference to FIG. 3 (the drawing false twisting machine normally arranges the devices symmetrically. The right part is omitted). The draw false twisting machine guides the yarn Y unwound from the yarn supply package Ps supported by the creel stand 11 by the guide pipe 9. A first feed roller F1, a primary heater H1 for texturing, a cooling plate 14, a nip twister 10 composed of a pair of twister belts that cross each other in the traveling direction and are in contact with each other, a second feed roller F2, a third feed roller F3, and a setting. The secondary winder H2, the fourth feed roller F4, and the oiling roller 8 pass through the yarn path in the order described, and the winder 1
It is to be wound around a package Pw in 2.

In the above structure, it is necessary to hang the yarn along the yarn path at the start of work or at the time of yarn breakage. The threading operation will be described step by step. First, the end of the guide pipe 9 on the outlet side is sucked by a suction gun, and the yarn end of the yarn supplying package Ps is pulled out to the working passage 13 side. The drawn yarn Y is sucked by a suction nozzle (not shown) on the winder 12 side to apply a constant tension to the yarn. In this state, while pulling out the yarn Y between the guide pipe 9 and the suction nozzle, the yarn is hooked in order from the first feed roller F1. Fourth feed roller F
The yarn path is bent at 4, and the yarn Y is guided to the lower space of the work passage 13 through a slit (not shown) formed in the step 13a that constitutes the work passage 13 and is hung on the oiling roller 8. The shifter rod 6 is used for threading on the primary heater H1 and the cooling plate 14, but the threading operation on the other feed rollers is directly performed by the operator using a hook-shaped device.

[0004]

In recent years, a filament processing machine such as a draw false twisting machine has been attempted to be downsized and improved in workability. In particular, the thread hooking operation after thread breakage has been improved so that it can be performed only by using the hook-shaped device.

However, in the yarn hooking operation on the feed roller located downstream of the secondary heater, the traveling yarn and the feed roller enter the blind spot of the secondary heater as shown by the hatching in FIG. 4, and the worker hooks the yarn. It was difficult to visually confirm the part. Therefore, you must bend your knees and bend over, and then take a cramped posture such as looking into the lower end of the heater.
The operability was not fully utilized.

If the secondary heater is tilted or the position of the heater is raised in order to eliminate the above-mentioned blind spot, it will be against the size reduction.

An object of the present invention is to provide a filament processing machine having a good threading workability in order to solve the above problems.

[0008]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention forms a surface of a lower end of a heater on the side of a work passage into an inclined surface which is deeper toward the lower side. This is to prevent the tool from entering the blind spot of the heater when it is visually checked during threading work or the like.

The temperature of the lower end portion of the vertically erected heater is lower than that of the upper end portion thereof, and the thermal load is smaller than that of the upper end portion into which the outside air accompanying the traveling yarn traveling downward from above is introduced. It is a place. The inclined surface is preferably formed by cutting out a part of the heat insulating material located at the lower end of the heater.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is an enlarged view of a main part in which the present invention is adopted as a secondary heater of a draw false twisting machine which is a typical filament processing machine. Since the entire structure of the drawing false twisting machine is the same as that of FIG. 3 described above, the description thereof will be omitted by using the reference numerals of FIG.

As shown in FIG. 1, the traveling yarn Y includes a third feed roller F3, a secondary heater H2 for setting, a fourth feed roller F4 as a yarn guide tool, and a working passage 13.
The yarn runs along the yarn path that passes through the lower space of step 13a that forms the.

The structure of the secondary heater H2 will be described in detail with reference to FIG. The secondary heater H2 has a heat transfer body 5 in which a heat source 4 such as a sheath heater is fitted and which vertically penetrates the heat transfer body 5 and has a yarn running groove 5a which opens a yarn path on the working passage 13 side. 1 is provided. Heating element 1
By disposing the heat insulating material 2 and forming the deep thread insertion slit 3 on the surface of the work passage 13 side, the yarn path is opened to the work passage 13 side for thread hooking. It is configured to suppress the entry of outside air into the traveling groove 5a and the heat radiation to the working passage 13 side.

The outer peripheries of the heat transfer body 5 and the heat insulating material 2 are covered with another heat insulating material 2A, and the heat transfer material 5 and the heat insulating material such as calcium oxide are rigidly molded through a binder. A case 7a containing the materials 2 and 2A is attached to a case body 7 extending along the working passage 13 at predetermined intervals so as to correspond to each winder 12 of the draw false twisting machine. In the case body 7, each of the cases 7
A space a is filled with another soft insulating material 2B such as ceramic fiber. Reference numeral 15 in the drawing is a cover corresponding to the end of the case 7a.

The yarn insertion slit 3 is formed in the secondary heater H2 as described above. Further, in the step 13a constituting the working passage 13, plate members having a constant width are arranged side by side in the longitudinal direction of the working passage 13 to form slits for thread insertion between the respective plate members. A worker can easily hang a thread from the slits on both sides of the work passage by manual work while holding the thread with a hook-shaped thread hanging device, for example.

In order to facilitate the threading operation, the surface of the secondary heater H2 on the side of the working passage 13 is formed as an inclined surface 16 that goes deeper toward the lower side. That is, in order to facilitate the yarn hooking operation on the fourth feed roller F4, which is a yarn guiding tool for bending the yarn path, the lower end portion of the case main body 7 is formed on the sloped surface 16 as shown in FIG. As shown, the fourth feed roller F4 is configured so as not to enter the blind spot of the operator.

When forming the sloped surface 16, the lower end of the heat insulating material 2 for forming the thread insertion slit 3 is cut out obliquely over the entire width direction.
In the example of FIG. 1, the length of the heat transfer member 5 remains the same as before, and the elimination of the blind spot is caused by the heat generation amount of the heater and the yarn traveling groove 5a.
Is devised so as not to affect the length of. Since the lower end of the secondary heater H2 hits the outlet of the running yarn Y, there is no inflow of outside air accompanying the running yarn Y, and the temperature is lower and the heat load is smaller than the upper end of the heater. Therefore, even if the heat insulating material 2 is cut out, there is almost no effect on the filament processing.

In the example of FIG. 1, the lower end portion of the heat insulating material 2 is cut out diagonally over the entire width direction, but the degree of the cutout should be determined in consideration of workability and influence on filament processing. Is. Further, the degree of this notch naturally changes depending on the positional relationship between the secondary heater H2 and the work step 13a and the positional relationship between the fourth feed roller F4 serving as the yarn guide tool, and is larger than that in the example of FIG. There may be a small cutout, and conversely, the cutout may reach the heat transfer body 5.

The present embodiment is an example of a typical filament processing machine in which a heater is vertically installed adjacent to a work passage to form a yarn path that bends horizontally below the heater. Although the twisting machine is taken up, the present invention is not limited to the above-described embodiment, and is also effective for other filament processing machines such as a false twisting machine and an air processing machine.

[0019]

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

By forming the lower surface of the heat insulating material constituting the heater on the side of the working passage into an inclined surface that goes deeper toward the lower side, the visual confirmation of the yarn guiding tool located downstream of the heater is improved and the operator Must be done with confirmation,
Threading, which is a troublesome task, to a yarn guide tool such as a feed roller located downstream of the heater can be carried out in a comfortable posture, and work efficiency is improved.

When the inclined surface is formed by cutting out a part of the heat insulating material of the heater, since the temperature is lower than the upper end and the thermal load is small, filament processing is performed. It is possible to improve the workability of the thread hooking operation without deteriorating the ability of. In particular, when the heater is provided with a heat insulating material that forms a deep thread insertion slit on the side of the working path of the yarn path in the heater, the heat insulating material can be largely cut out, and the blind spot It is easy to solve.

[Brief description of drawings]

FIG. 1 is an enlarged view of essential parts of a work passage and a secondary heater of a drawing false twisting machine according to an embodiment of the present invention.

FIG. 2 is a plan view of an essential part of a secondary heater of the drawing false twisting machine according to the embodiment of the present invention.

FIG. 3 is an overall view of a conventional drawing false twisting machine.

FIG. 4 is an enlarged view of a main part of a work passage and a secondary heater, which corresponds to FIG. 1 and explains a conventional blind spot.

[Explanation of symbols]

 1 Heating Element 2 Heat Insulating Material 3 Slit 4 Heat Source 5 Heat Transfer Element F4 Fourth Feed Roller (Example of Thread Guide Tool) H2 Secondary Heater (Example of Heater)

Claims (3)

[Claims] 1. A heater is erected vertically adjacent to a work passage, a thread guide is provided below the heater, passes through the heater in the vertical direction, and is opened to the work passage side. In a filament processing machine in which a yarn guide is bent by a yarn guide to form a yarn path that extends in the horizontal direction, a surface of the lower end of the heater on the side of the working passage is formed as an inclined surface that is deeper toward the bottom. Machine. 2. The filament processing machine according to claim 1, wherein the inclined surface is formed by cutting out a part of a heat insulating material of the heater. 3. The filament processing machine according to claim 2, wherein the heater is provided with a heat insulating material that forms a deep thread insertion slit on a side of the working path of a yarn path inside the heater.