JPS6065130A - Method for heating fiber - Google Patents

Abstract

PURPOSE:To make it possible to carry out good carding and spinning, etc. with saved energy without winding fibers around rolls, by irradiating the fibers with microwaves at a specific frequency under heating in local temperature control in a spinning step. CONSTITUTION:A heating chamber 3 is provided at a position just before feeding a lap 2 preferably used in a card of a spinning step to a taker-in roll 1 or a sliver 10 used in the fine spinning of the spinning step preferably to a roll stand 9, and a microwave generating apparatus 5 is provided in the heating chamber 3 through a waveguide tube 4. Microwaves at 1-100GHz frequency generated from the above-mentioned microwave generating apparatus 5 are passed through the waveguide tube 4 to irradiate the lap 2 or sliver 10 in the heating chamber 3. The lap 2 or sliver 10 is heated and fed to the taker-in roll 1 or roll stand 9.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to local temperature control in a spinning process.

Air conditioning in the spinning process is very important, and if the temperature and humidity are within the appropriate range, fibers may become wrapped around the rollers, fiber breakage will increase, and various problems such as fluff, yarn unevenness, and decrease in yarn strength will occur. cause trouble.

Particularly in the case of synthetic fibers, when the temperature drops as in winter, the fibers are not easily charged, causing problems due to the generation of static electricity.

For this reason, conventional spinning factories have adopted a method in which air heated by a heater is blown throughout the factory using a fan, but this method has the drawback of requiring a huge amount of heating energy.

The present invention solves the above-mentioned conventional drawbacks and provides an energy-saving heating method using local heating.The present invention aims to irradiate microwaves only to the fibers that require heating and heat the fibers using the dielectric substance in the fibers. That is.

An embodiment of the present invention will be described below with reference to the drawings.

Example 1 An example of the present invention in a card for a spinning process is shown in FIG.

A heating chamber (3) is provided at a position immediately before supplying the wrap (2) to the take-in roller (1), and a microwave generator lit is provided in the heating chamber (!1) via a waveguide (4).

The microwave (frequency 1~]00 GHz) generated by the microwave generator (11) passes through the waveguide (4) and irradiates the wrap (2) in the heating chamber (3).

The water in the wrap does not act as a dielectric material, and the fibers are kept at an appropriate temperature (lal-
114° C.) and supplied to the take-in roller (1).

Note that it is preferable to provide a radio wave shield part +61 at the entrance and exit of the heating chamber to prevent radio wave leakage.

Since the fiber heating method of the present invention is carried out by the method described above, the fiber is heated in a cylinder (
7) and the top (3), a good sliver can be obtained without winding of the fibers around the rollers, and without fiber breakage.

Furthermore, instead of heating the entire room as in the traditional case,
It has an excellent effect in that heating energy is extremely small because it is localized heating.

Example 2 An example of the present invention in spinning in the spinning process is shown in FIG.

A heating chamber (3) is provided at a position immediately before supplying IOl to the roller stand (9), and the heating chamber (3) is connected to the K waveguide (
4) via microwave generator (6) t-provided.

The microwave (frequency LSG&) generated by the microwave generator (6) passes through the waveguide (4) into the heating chamber 13.
) Irradiate Shino+In inside.

Shino (Water in IC4 is a dielectric substance, fiber is at an appropriate temperature (21
~24°C) and fed to the roller stand (9).

Note that the heating method of the present invention and other heating methods or humidification methods using heaters or the like can also be used together.

Since the heating method for the fibers of the present invention is carried out by the method described above, the fibers can be kept at an appropriate temperature and humidity, and the fibers will not be wound around the rollers, allowing for good spinning.

As described above, the present invention irradiates fibers such as 5-tubu and Shino with microwaves, and the water in the fibers generates heat and is heated to an appropriate temperature, thereby heating local areas instead of heating the entire room as in the conventional method. This invention has excellent effects such as the heating energy can be significantly reduced compared to the conventional method, and good carding, spinning, etc. can be performed.

[Brief explanation of the drawing]

FIG. 1 is a block diagram when the fiber heating method of the present invention is applied to a card, and FIG. 2 is a block diagram showing another embodiment of the present invention. 11)...Take-in low 2.12)...Wrap,
1s)...heating chamber, (4)...waveguide, (I)...
・Microwave generator. (6)...Radio wave shield part, (7)...Cylinder,
(@)...Top, +s+...Low 2 stand, Q
o)...Shinofi- Figure 1 Figure 2

Claims (1)

[Claims] (1) In the local temperature control in the spinning process, the frequency is 1.
A method for heating fibers, characterized by heating the fibers by irradiating the fibers with microwaves of ~100 GHz. (i) The heating method for fibers according to claim 1, characterized in that the fibers are wraps used in cards in the spinning process. (3) The fibers are used in spinning in the spinning process. 2. The method of heating fibers according to claim 1, wherein the fibers are Shino.