JPH10317238A - Heater of drawing false-twisting machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To minimize the heat-dissipation from a yarn-insertion path, decrease the electric power consumption, stably keep the temperature of the yarn-insertion path, and obtain a textured yarn having stable quality by covering a part excluding a yarn-running path and a lower opening of a slit-formed yarn-insertion path with covers. SOLUTION: A cover covering an end opening 5c of a slit-formed yarn- insertion path 5a excluding a yarn-running path and a cover covering the lower opening 5b of the slit-formed yarn-insertion path 5a are preferably formed in integrated state in such a manner as to be opened or closed interlocked with the motion of a shifter 6.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a heater device used in a draw false twisting machine for producing a bulky processed yarn by drawing and false twisting a yarn fed from a yarn supply package. .

[0002]

2. Description of the Related Art Conventionally, a slit-shaped yarn insertion passage into which a yarn is inserted is formed in a heater device of a draw false twisting machine. The yarn insertion passage is formed with an opening at a lower surface in a longitudinal direction of the heater device. And an opening at the side end surface of the heater device. Then, in the yarn processing state where the yarn is inserted into the yarn insertion passage and the yarn is being processed, the opening at the lower surface in the longitudinal direction of the yarn insertion passage is prevented in order to prevent heat radiation from the opening at the lower surface in the longitudinal direction of the yarn insertion passage. Is known with a heater device of a draw false twisting machine in which the cover is covered with a cover.

[0003]

In the above-described heater device of the conventional draw false twisting machine, since the opening at the lower surface in the longitudinal direction of the slit-like yarn insertion passage is covered with the cover, the length of the yarn insertion passage in the longitudinal direction is reduced. Heat radiation from the opening on the bottom can be prevented,
Power consumption could be reduced. However, the power consumption is still large and the cost of the processed yarn produced by the draw false twisting machine has been increased.

[0004] An object of the present invention is to solve the problems of the above-described heater device of the conventional draw false twisting machine,
An object of the present invention is to provide a heater of a draw false twisting machine capable of producing a processed yarn having stable quality.

[0005]

SUMMARY OF THE INVENTION In order to achieve the above-mentioned object, the present invention firstly relates to a portion of the end opening of a slit-shaped yarn insertion passage except for a yarn traveling path. Second, the lower opening of the slit-like thread insertion passage is covered with a cover, and secondly, a portion of the end opening of the slit-like yarn insertion passage other than the yarn running path. And a cover that covers the lower opening of the slit-shaped thread insertion passage is opened and closed in conjunction with the shifter. Third, an end opening of the slit-shaped thread insertion passage is opened. A cover that covers a portion excluding the yarn traveling path, and a cover that covers a lower opening of the slit-like yarn insertion passage,
It is formed integrally.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS First, a drawing false twisting machine as an example to which the heater device of the present invention is applied will be described with reference to FIG.

[0007] 1 is a yarn supply package supported by a creel stand 2, 3 is a guide pipe,
The yarn y unwound from the yarn supply package 1 is introduced into the first feed roller 4 via the guide pipe 3. First
The yarn y introduced into the feed roller 4 performs the yarn insertion into the yarn insertion passage of the heater device 5 and the shifter 6 that guides the yarn y inserted into the yarn insertion passage of the heater device 5.
Is inserted into the yarn insertion passage of the heater device 5 through the yarn guide 6a disposed at the tip of the heater device 5. The yarn y coming out of the heater device 5 is introduced into the false twisting device 8 through the cooling plate 7,
Then, the second feed roller 9, the entanglement processing device 10,
Third feed roller 11, fourth feed roller 12
After that, the oiling process is performed by the oiling roller 13. The yarn y that has been subjected to the oiling process is wound around the package 14a by the winding device 14.

Next, the heater device of the stretch false twisting machine of the present invention will be described with reference to FIGS. 2 to 5 which are perspective views of the heater device of the stretch false twisting machine of the present invention.

In the heater device 5 having a built-in heating element, a slit-shaped yarn insertion passage 5a into which a yarn is inserted is formed, and the yarn insertion passage 5a is formed in a lower opening of a lower surface 5 'of the heater device 5. It has a portion 5b and an end opening 5c at the end face 5 ″ of the heater device 5. In this embodiment, the heater device 5 in which two slit-like thread insertion passages 5a are formed is provided. Also, in FIG.
5d is a sheath heater embedded in the heater block 5e, and 5f is a yarn guide arranged in two slit-like yarn insertion passages 5a. Further, a heat insulating material 5g is provided in a portion other than the heater block 5e in which the yarn insertion passage 5a and the sheath heater 5 are embedded.

Next, a cover for covering a portion of the end opening 5c of the slit-shaped thread insertion passage 5a excluding the yarn running path and a lower opening 5b of the slit-shaped thread insertion passage 5a. The member C will be described. In the present embodiment, two slit-shaped thread insertion passages 5a are formed in the heater device 5, and the lower opening 5b and the end opening 5c of the two thread insertion passages 5a are connected to each other. Since the configuration of the cover member C to be covered is the same, only one cover member C will be described.

C1 is an end opening of a portion excluding the yarn running path, the upper end of which is pivotally supported by a pivot shaft c2 attached to both opposite end surfaces 5 "of the heater device 5. 5c is a cover for an end opening that covers the end opening 5c.
A lower opening 5 formed in a box shape with a bottom
A cover c3 for the lower opening covering b is attached. c
Reference numeral 4 denotes a horizontally extending arcuate plate-like cam member having one end attached to a side surface c3 ′ located outside the longitudinal direction of the lower opening cover c3. c5 is a spring member such as a spring coil stretched between the lower portion of the end opening cover c1 and a pin c6 attached to the end surface 5 ″ of the heater device 5. , Biased to open outward.

Reference numeral 6 denotes the above-described shifter. The shifter 6 has a block 6c provided with a cam roller 6b capable of abutting on the above-mentioned plate-like cam member c4.

When the drawing false twisting machine is started or a thread breakage occurs and the threading operation to the heater device 5 is performed, the yarn insertion passage of the heater device 5 shown in FIGS. From the state in which the lower opening 5b and the end opening 5c of the lower opening 5b except for the running path of the yarn are covered by the lower opening cover c3 and the end opening cover c1, as is well known. When the shifter 6 is lowered (moved to the right in FIGS. 2 and 4), the cam roller 6b disposed on the shifter 6 gradually becomes plate-like from the tip of the arc-like plate-like cam member c4. It moves toward the root of the cam member c4, and
Both the end opening cover c1 urged outward by the spring member c5 and the lower opening cover c3 attached to the lower end of the end opening cover c1 move outward. As shown in FIG.
Lower opening 5b on the lower surface 5 'and the end opening 5 on the end face 5 "
c is released.

The lower opening 5 on the lower surface 5 'of the heater device 5
b and the end opening 5c of the end face 5 ″ are opened, and then the thread guide 6a disposed at the tip of the shifter 6 as is known.
Then, the shifter 6 is lifted, and the thread hooked on the thread guide 6 a disposed at the tip of the shifter 6 is moved from the lower opening 5 b of the lower surface 5 ′ of the heater device 5. Is inserted into the yarn insertion passage 5a of the heater device 5.

After the yarn is inserted into the yarn insertion passage 5a of the heater device 5, or after the yarn is inserted into the yarn insertion passage 5a of the heater device 5.
During the operation of inserting the thread into the cam roller 6b, the cam roller 6b disposed on the shifter 6 comes into contact with the base of the arc-shaped plate-like cam member c4. Moves toward the tip of the arcuate plate-like cam member c4. With this shift, the end opening cover c1 and the lower opening cover c3 attached to the lower end of the end opening cover c1 against the urging force of the spring member c5.
Move inward together, and the lower surface 5 ′ of the heater device 5
The lower opening 5b and the end opening 5c of the end face 5 ″ are closed. The end opening cover c1 is formed of the end opening 5c of the end opening 5c of the slit-like thread insertion passage 5a. It is configured to cover a portion excluding the yarn traveling path located at the upper part of the.

As described above, of the end opening 5c of the slit-shaped yarn insertion passage 5a, a portion excluding the yarn running path is covered with the end opening cover c1, and the lower opening 5b is covered. And the lower opening cover c3, so that heat radiation from the lower opening 5b is prevented and the accompanying flow of air entering from the end opening 5c accompanying the traveling yarn is reduced. So you can
The heat radiation of the heater device 5 due to the flow of the accompanying flow into the yarn insertion passage 5a can be reduced, and the power consumption of the heater device 5 can be reduced.

Further, since the heat radiation from the lower opening 5b and the heat radiation due to the flow of the accompanying flow into the yarn insertion passage 5a can be prevented, the temperature of the yarn insertion passage 5a of the heater device 5 can be kept constant and moreover. Since the yarn can be stably maintained, a processed yarn having stable quality can be manufactured.

In the embodiment described above, the cover c1 for the end opening and the cover c3 for the lower opening are configured to be opened and closed in conjunction with the movement of the shifter 6, but the plate-like cam member c4 and the cam The roller 6b and the like may be omitted, and the shifter 6 may be opened and closed separately from the movement thereof.

Although the embodiment in which the lower opening cover c3 is attached to the lower end of the end opening cover c1 has been described, the lower opening cover c1 has the lower opening cover c1 attached thereto. The cover c for the lower opening without attaching the cover c3
3, a lever is attached to the short side surface c3 ″, and the lever is
By pivotally supporting the end face 5 ″ of the heater device 5, the lower opening cover c3 can be opened and closed independently of the opening and closing work of the end opening cover c1. .

[0020]

Since the present invention has the above-described structure, the following effects can be obtained.

Since the end opening of the yarn insertion passage except for the yarn running path and the lower opening are covered with a cover, heat radiation from the yarn insertion passage can be minimized. Therefore, power consumption can be reduced, and the temperature of the yarn insertion passage can be kept constant and stably, so that a processed yarn having stable quality can be manufactured.

The cover for covering the portion of the end opening of the thread insertion passage except for the yarn running path and the cover for the lower opening are opened and closed in conjunction with the shifter. The time can be reduced, and the workability of opening and closing the cover is improved.

A cover for covering a portion of the end opening of the slit-shaped thread insertion passage except for the yarn running path and a cover for covering a lower opening of the slit-shaped thread insertion passage are integrally formed. Accordingly, the operation of opening and closing the cover can be simplified, and the workability of the operation of opening and closing the cover is further improved.

[Brief description of the drawings]

FIG. 1 is a side view of a stretch false twisting machine as an example to which a heater device of the present invention is applied.

FIG. 2 is a perspective view of a heater device of the draw false twisting machine of the present invention.

FIG. 3 is a partial cross-sectional view perpendicular to the longitudinal direction of a heater device of the draw false twisting machine of the present invention.

FIG. 4 is a perspective view of a heater device of the draw false twisting machine of the present invention, mainly showing a cover opening / closing means.

FIG. 5 is a perspective view of a heater device of the stretch false twisting machine of the present invention, similar to FIG.

[Explanation of symbols]

 5 ... heater device 5a ... thread insertion passage 5b ... lower opening 5c ... end opening 6 ... shifter c1 ... Cover for end opening c3 ... Cover for lower opening

Claims (3)

[Claims] 1. A drawing method comprising the steps of: covering a portion of an end opening of a slit-shaped thread insertion passage excluding a yarn running path and a lower opening of a slit-shaped thread insertion passage with a cover. Heating device for false twisting machine. 2. A cover for covering a portion of the end opening of the slit-shaped thread insertion passage except for a yarn running path and a cover for covering a lower opening of the slit-shaped thread insertion passage are provided on a shifter. The heater device for a draw false twisting machine according to claim 1, wherein the heater device is opened and closed in conjunction with each other. 3. A cover for covering a portion of the end opening of the slit-shaped thread insertion passage except for a yarn traveling path and a cover for covering a lower opening of the slit-shaped thread insertion passage. The heater device for a draw false twisting machine according to claim 1 or 2, wherein the heater device is formed as follows.