JP3313798B2 - Heat medium heater of draw false twister - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a grooved tube provided with a yarn running groove in contact with a yarn of a yarn false twisting device, and a heater for heating a heat medium sealed in the grooved tube. The present invention relates to a heat medium heater of a draw false twisting machine, which is detachable from each other to facilitate maintenance.

[0002]

BACKGROUND ART FIG heat medium heater false twisting device in a conventional draw texturing machine, will be described with reference to FIGS. 8 and 9, the overall arrangement of FIG. 7, the yarn Y ₁ is first feed The roller 1 and the second feed roller 2 hold the yarn at a stretchable yarn tension.
A primary heat medium heater 4 for heat fixing and a cooling plate 7 are provided on the upstream side between the feed rollers 1 and 2 of
A false twist device 3 such as a nip twister is provided on the downstream side, and the yarn Y ₁ from the first feed roller ₁ is
It is in a heated state with twist.

[0003] That is, stretched in a state of applying twists to the yarn Y _1, is a bulky yarn is thermally fixed by the primary heat medium heater 4 stretching along this twisting. In the primary heat medium heater 4, since heating the yarn Y ₁ containing the twist to stretching temperature, contacting the traveling yarn to accurately forming tube with temperature controlled grooves in heat transfer fluid such as encapsulated Dowtherm vapor A type that heats the yarn while using a third feed roller 5 is provided downstream of the second feed roller 2, and these two sets of the second and third feed rollers 2 are used.
A secondary heat medium heater 6 is provided between the heaters 5.

[0004] Incidentally, by subtracting the torque by a heat treatment to the yarn Y ₁ after high-processed tomb the secondary heat medium heater 6, but leaving only bulkiness, and is used as needed. The secondary heat medium heater 6 is a double tube type which is inserted into a heating tube whose temperature is precisely controlled by a heat medium liquid such as Dowsome vapor as in the case of the primary heat medium heater 4. Y ₁ is heated with partial contact.

Further, in the conventional example of the drawing false twisting machine shown in FIG.
A set including the above devices is installed symmetrically. The heating medium heater of the draw false twister as described above is disclosed in the device of Japanese Utility Model Laid-Open No. 4-127281. In the present invention, a double pipe inserted into a heating pipe in contact with an insertion pipe through which a yarn passes is used. In the heat medium heater that heat-treats the untwisted yarn, the inner surface of the insertion tube is coated with an infrared radiation ceramic, and the heat medium is heated by performing infrared heating in addition to heat transfer heating and convection heating. The purpose is to increase the heating efficiency of the heater to achieve energy saving.

Next, the details of the prior art primary heating medium heater 4 of FIG. 7 will be described with reference to the perspective view of FIG. 8 and FIG. 9 which is an enlarged view of a main part of FIG. Done 6
The lower part of the grooved molded body 11 (often about 3 to 12 depending on the model) is connected to the boiler tube 12 and the upper part is connected to the condenser tube 13 to connect the boiler tube 12 and the condenser tube 13 to a return pipe. One heater unit connected by 14 is provided.

[0007] A sheath heater 15 is provided in the boiler tube 12, and the heat medium liquid 16 in the boiler tube 12 turns into steam at a predetermined temperature to keep the outer surface of the grooved molded body 11 at a constant temperature. At the same time, the heat medium liquid rises in the grooved molded body 11, passes through an orifice (not shown) in the condenser tube 13, becomes a heat medium liquid 16 which is again condensed, and returns to the boiler tube 12 through a return pipe 14.

As shown in FIG. 9, one grooved molded body 11 is provided with two yarn running grooves 17 and 18 running in parallel on a curved outer surface, and two yarns Y _{1 are formed.} , Y ₂ can be heated at the same time, and a heater unit capable of coping with a total of 12 weights with the six grooved molded bodies 11.
However, the above heat medium heater, in particular, the yarn traveling groove 17, 18 the yarn Y _1, Y ₂ of primary heat medium heater 4 passes,
Since the running yarns Y ₁ and Y ₂ are in contact with the respective grooves, the grooves may be displaced or stained. Maintenance such as periodic removal and cleaning is required. For this reason, the 12 weights are removed as one unit. Therefore, it is difficult to remove the heat medium heater from the draw false twister every time maintenance is performed, and the operation of the 12 spindles must be stopped at a time.

[0009]

SUMMARY OF THE INVENTION The present invention has been made in order to solve the above-mentioned conventional problems, and it is possible to replace only the grooved molded body alone at the time of maintenance. An object of the present invention is to provide a heating medium heater of a draw false twister that can be performed in a space.

[0010]

The present invention has a yarn running groove.
And a grooved molded tube with a heat medium sealed inside, and the heat medium
It consists of a heater that heats, and
Stretch false twisting, which can be joined and separated from each other
Inside the thread running groove of the grooved forming tube in the heat medium heater of the machine
The heat transfer medium of a draw false twister equipped with a heat transfer liquid return fin
Consist of

Further, the present invention further has a yarn running groove,
Heating the above-mentioned heat medium with a grooved formed tube enclosing a heat medium in the part
The grooved tube and the heater section.
And the heat of the draw false twister, which can be joined and separated from each other.
In the medium heater, the heat medium is placed inside the thread running groove of the grooved formed pipe.
Heat medium heater of draw false twister equipped with liquid return fin
Consists of

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 shows a grooved formed pipe 22 in a boiler portion 21 of a primary heating medium heater 25 in a draw false twisting machine according to an embodiment of the present invention. FIG. 2 is a vertical cross-sectional view of the grooved molded tube 22 of FIG. 1, and FIG. 3 is a perspective view of the boiler section 21 of FIG. .

First, a primary heating medium heater 25 which is a heating medium heater according to the embodiment of the present invention shown in FIG. 1 is the same as the primary heating medium heater 4 of the drawing false twisting machine similar to the conventional example shown in FIG. Although they are arranged at the same position and perform the same function, they differ from the conventional primary heating medium heater 4 in FIG.
The heat medium 16 is sealed only inside the grooved tube 22 having the groove 18, and the grooved tube 22 and a boiler 21 as a heater for heating the heat medium 16 are formed. The point is that the formed tube 22 and the boiler section 21 can be joined and separated from each other.

That is, the heat receiving portion 23 at the lower end of the grooved tube 22 is thermally joined and separable from the heating groove 24 of the boiler portion 21. It can be easily removed from the boiler section 21 as shown in FIG. 1 or mounted on the boiler section 21 as shown in FIG. Therefore, the grooved formed tube 22 is detached from the primary heat medium heater 25, and can be maintained one by one for maintenance such as cleaning.

As a result, maintenance such as cleaning of the yarn running grooves 17 and 18 can be performed in the storage space of the grooved pipe 22 removed from the primary heat medium heater 25, and other maintenance is performed during the maintenance period. Since it can be replaced with the grooved molded pipe 22 which has been cleaned, the primary heating medium heater 25 is not stopped, and the draw-off false twisting machine is not allowed to play.

Next, the boiler section 21 of FIG. 1 also has a heat medium liquid sealed therein, which is heated by the sheath heater 15 to supply heat at a constant temperature to the heating groove 24. However, the heating means of the heater section of the boiler section 21 includes:
The present invention is not limited to this embodiment, and a cast heater system or the like may be adopted. Further, the shape of the boiler portion 21 is not limited to the square shape of this embodiment, and may be a round shape or another shape. Any material such as a round tube may be adopted.

On the other hand, the grooved tube 22 is provided with a heat receiving portion 23 at a lower end thereof and a hook 26 at an upper portion thereof so that the heat receiving portion 23 is thermally joined to the heat receiving groove 24 of the boiler portion 21 at the time of thermal joining. The hook 26 is fixed to the grooved tube holding frame 27. Next, another embodiment of the present invention will be described with reference to FIGS. 4, 5 and 6. First, FIG. 4 is a plan sectional view of another embodiment of the grooved formed tube 22, and FIG. Formed tube 22
The heat medium 16 condensed near the inner surfaces of the yarn running grooves 17 and 18
A heat medium liquid return fin 30 is provided on the inner surface of the grooved forming tube 22 positively and integrally so that the liquid of the liquid passes through the inner surface of the grooved forming tube 22 and returns to the heat receiving portion 23. The portions other than the grooves 17 and 18 are covered with a heat insulating material 31, and the return pipe 14 of the conventional example in FIG.

FIG. 5 shows another modified embodiment of the grooved forming tube 22 shown in FIG. 4, in which a separate heat medium liquid return fin 30 is provided for the yarn running grooves 17, 18 of the grooved forming tube 22. It is attached to the inner surface by fitting or the like, and the manufacturing cost is reduced as compared with the integrated heat medium liquid return fin 30 of FIG. FIG. 6 shows a grooved tube 22.
FIG. 13 is a perspective view showing another embodiment of the present invention. The feature of this case is that a member having a thread running groove 17 is fitted to a member having a U-shaped cross section, and its upper and lower parts are covered with a lid member 32. The grooved molded tube 22 is used to further simplify the manufacturing process.

[0019]

As described above, according to the heat transfer medium heater of the draw false twisting machine of the present invention, the grooved tube having the yarn running groove in contact with the running yarn and the heat in the grooved tube are formed. Since the heater for heating the medium can be joined and separated from each other, cleaning of the thread running groove can be performed in any place as long as there is enough space to remove the grooved tube and place it. Therefore, there is an effect that the inspection and repair can be performed with minimum labor and space, and the maintenance is facilitated. Further, since another grooved molded pipe can be replaced during the maintenance, the machine is not idled, and there is an effect that the operation efficiency can be improved.

[Brief description of the drawings]

FIG. 1 is an overall perspective view before setting a grooved forming tube of a primary heat medium heater of a drawing false twisting machine according to an embodiment of the present invention.

FIG. 2 is a vertical sectional view of the grooved tube of FIG. 1;

FIG. 3 is a perspective view showing a state in which six grooved molded tubes are mounted on the boiler unit of FIG. 1;

FIG. 4 is a cross-sectional plan view of another embodiment of the grooved formed pipe according to the present invention.

FIG. 5 is a plan sectional view of another embodiment different from FIG. 4 in which the grooved molded tube of FIG. 4 is improved.

FIG. 6 is a perspective view of another embodiment of a grooved molded pipe according to the present invention, which is different from the method of manufacturing the same.

FIG. 7 is an overall layout diagram of a conventional draw false twisting machine.

8 is a perspective view showing details of a primary heat medium heater in FIG. 7;

FIG. 9 is a perspective sectional view of an enlarged main part of the grooved molded body of FIG. 8;

[Explanation of symbols]

Reference Signs List 16 Heat medium 17, 18 Yarn running groove 22 Groove-formed tube 23 Heat receiving part 24 Heating groove

Continuation of front page (58) Field surveyed (Int.Cl. ⁷ , DB name) D02G 1/00-1/20

Claims (2)

(57) [Claims] 1. A grooved tube having a yarn running groove and having a heat medium sealed therein, and a heater for heating the heat medium, wherein the grooved tube and the heater are mutually connected. Joining
A heat medium heater of a draw false twisting machine, wherein a heat medium liquid return fin is provided inside a yarn running groove of a grooved forming tube, which is a heat medium heater of a draw false twist machine that can be separated. 2. A thread of a formed pipe having a groove formed by a heat medium liquid return fin.
The heating medium heater of the draw false twisting machine according to claim 1, which is mounted inside the running groove .