JPS60167915A - Heat-treating device for yarn of multiple positions - Google Patents

Abstract

PURPOSE:To heat-treat yarn of multiple positions in such a way that yarn-to- yarn variation will not occur even if number of multiple positions to be treated is changed, by providing a heating column having a heat-treating zone with a flat cross-section with a feeding port of heating gas and a suction port of heating gas is specific states, respectively. CONSTITUTION:The heat-treating zone 2 having a flat rectangular cross-suction is formed inside the heating column 1, and the yarn Y of multiple positions to be treated is made to travel in parallel. The feeding ports 5 of heating gas connected to the heating gas chamber 3 are set at both the sides of an inner side face along the flatness direction of the heating column 1. The slit suction ports 10 of heating chamber are set, respectively, along both the inner sides at the yarn outlet 9 of the heating column 1, and each of the suction ports 10 is connected to the suction pipe 11 sucking the heating gas forcibly.

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to a heat treatment apparatus for heat treating a plurality of threads with heated gas such as steam.

(Prior art) Conventionally, in order to heat-treat multifilament spun yarn spun from multiple spindles, a heat treatment area was generally provided for each spindle independently to prevent heat treatment variations between insertions. . Therefore, each time the number of threads to be heat-treated changes, there is a problem in that it is necessary to change the number of spindles of the heat-treating device used for the treatment.

[Purpose of the invention]

SUMMARY OF THE INVENTION In view of the above-mentioned problems, an object of the present invention is to provide a heat treatment device for multi-filament yarns that can be heat-treated with one heat treatment device so that no variation occurs between yarns even if the number of yarns to be treated changes. It's about trying.

[Structure of the invention]

The heat treatment apparatus for multi-filament yarns of the present invention, which achieves the above object, has a heat treatment area consisting of a space with a flat cross section in which a plurality of yarns can run in parallel in the inside of the heating cylinder, and at least The heating cylinder is characterized in that heated gas outlets are provided on both sides of the upper inner surface along the flat direction, and heated gas suction ports are provided on both sides of the lower inner surface of the heating cylinder along the flat direction.

[Embodiments of the invention]

The present invention will be explained below with reference to embodiments shown in the drawings.

In the figure, reference numeral 1 denotes a heating cylinder in the shape of a flat rectangular tube, and a yarn inlet 8 and a yarn outlet 9 each having a flat cross section are provided at the upper and lower parts. ing. The inside of the heating cylinder I forms a heat treatment area 2 for heat treating the yarn Y, and the outside is covered with a housing 4 made of a heat insulating material via heating gas chambers 3, 3 on both sides, respectively. The heat treatment area 2 formed inside the heating cylinder 1 is
It has a flat rectangular cross section, and a plurality of yarns Y (four in the illustrated example) to be heat-treated can run in parallel along the flat direction.

On both sides of the inner surface of the heating cylinder 1 along the flat direction, heated gas outlets 5 communicating with the heated gas chamber 3 are provided in multiple stages from the top downward. The heated gas outlet 5 may be provided with a large number of holes, or may be provided with a wire mesh or the like. The heated gas outlet 5 needs to be provided at least in one stage at least at the top of the heating cylinder l;
Preferably, the numbers are set in multiple stages as described above.

A rectifying chamber 6 is provided above the heating gas chambers 3, 3 on both sides, respectively.
6 are provided, each connected to a supply pipe 7, 7 to which a heated gas such as superheated steam or heated air is supplied. Each rectifying chamber 6 is provided with rectifying plates 6a, 6a along the flat opening at the top of the heated gas chamber 3, so that heated gas is evenly distributed and supplied to the flat opening.

On the yarn outlet 9 side of the heating cylinder 1, slit-shaped heated gas suction ports 10 and 10 are provided along the inner surfaces on both sides, and each heated gas suction port IO is forced to draw air by a blower (not shown) or the like. The suction tube 11 is connected to the suction tube 11. Each heated gas suction port 10 has a rectifying plate 10a, and the heated gas is sucked in a curtain shape uniformly distributed in the longitudinal direction of the slit through the rectifying plate 10a. In addition, a wire-mesh-like resistor 15 is provided in each heated gas suction port 10 along the longitudinal direction of the slit to improve uniformity of the flow velocity.

In the above embodiment, the heated gas suction port 10.10 is formed into a slit, but it may also be formed into a porous hole along the inner wall in the vicinity of the flat yarn exit opening. However, in order to equalize the suction flow velocity near each yarn, it is most preferable to use a slit shape. Further, although it is preferable to provide the wire mesh resistor 15, it may be omitted.

According to the heat treatment apparatus described above, since a plurality of yarns Y are run in parallel in the heat treatment area 2 having a flat cross section, the number of yarns Y can be arbitrarily changed and processed by simply changing the spacing between the yarns. . Further, the heated gas blown out from the heated gas outlet 5 on both sides of the heating cylinder 1 is forcibly sucked through the slit-shaped heated gas suction ports 10 on both sides of the lower part, and forms a curtain-like heated gas flow in the heat treatment area 2. Form. This curtain-shaped heated gas flow contacts the plurality of yarns Y running from the yarn inlet 8 to the yarn outlet 9 so as to be plane symmetrical from both sides thereof, and performs heat treatment thereon. Therefore, each of the plurality of threads is heat-treated so that they become uniform, and no variation occurs between the threads.

FIG. 4 shows another embodiment of the invention. This embodiment is based on the heating chamber 3 and the heat insulation material 4 in the above embodiment.
A heat insulating jacket 12 is provided between the two to improve heat retention efficiency through double heat retention. A heat medium supply port 13.13 and a heat medium discharge port 14.13 are provided on both upper and lower side surfaces of the thermal jacket 12, respectively, surrounding the heating gas supply pipes 7, 7 and the suction pipes 11.11. 14
is provided.

Furthermore, FIGS. 5 and 6 show other embodiments of the yarn inlet section in which the heat treatment using the heating cylinder is performed more efficiently. Diaphragm plates 16a and 16b that can be opened and closed according to the arrangement of the strips Y are provided. The aperture plates 16a and 16b are
Each has a notch 17 corresponding to the number of running yarns, and when both aperture plates 16a and 16b are combined, the notch 1
Reference numeral 7 serves as an aperture guide corresponding to the running yarn, and prevents heated gas from escaping to the outside through the slit-shaped yarn entrance 8.

These drawing handles 16a, 16b are arranged at the upper part of the heating cylinder body, and when threading, they are either separated horizontally from each other as shown in FIG. 6B, or they are separated from each other horizontally as shown in FIG. It is opened upward to be in the open state, and after threading, it is brought into the closed state as shown in FIG. 6A for thread processing.

〔Effect of the invention〕

As described above, in the multi-filament heat treatment apparatus of the present invention, the inside of the heating cylinder is formed into a heat treatment area consisting of a space with a flat cross section in which a plurality of yarns can run in parallel, and at least the flat cross section of the heating cylinder is Heated gas outlets are provided on both sides of the upper inner surface along the direction, and heated gas suction ports are provided on both sides of the lower inner surface along the flat direction of the heating cylinder, so that the heated gas does not reach the heat treatment area. Because it forms a curtain and contacts multiple threads from both sides, each thread can be heat-treated uniformly regardless of the number of threads.

[Brief explanation of drawings]

FIG. 1 is a longitudinal sectional view of a heat treatment apparatus according to an embodiment of the present invention, FIG. 2 is a plan view thereof, FIG. FIG. 5 is a longitudinal sectional view of a heat treatment apparatus according to another embodiment, and FIG. 6A is a plan view of the heat treatment apparatus showing an embodiment in which a throttle plate is disposed at the yarn entrance. B and C are explanatory diagrams for explaining the operation of the diaphragm plate arranged in FIG. 5, FIG. 6A is an explanatory diagram showing a closed state, and FIGS. 6B and C are explanatory diagrams showing an open state, respectively. ■... Heating tube, 2... Heat treatment area, 3... Heated gas chamber, 5... Heated gas outlet, 7... Supply pipe, 10... Heated gas suction port, 11...・Suction tube. Agent: Patent Attorney Shin Ogawa − Patent Attorney Ken Noguchi Teru Patent Attorney Kazuhiko Saishita

Claims (1)

[Claims] The inside of the heating cylinder is formed into a heat treatment area consisting of a space with a flat cross section in which a plurality of yarns can run in parallel, and heating gas outlets are provided on both sides of the upper inner surface of the heating cylinder at least along the flat direction. 1. A heat treatment apparatus for multi-filament yarn, characterized in that heated gas suction ports are provided on both sides of the lower inner surface along the flat direction of the heating cylinder.