Yarn heating apparatus

Abstract

The invention provides a yarn heating apparatus with a reduced power consumption for heating yarns fed by a yarn feeding roller. In a thermal insulation box (13), above a thermal insulation space (21) in which a godet roller (11) and a separate roller (12) each having a heater (15) are provided, a connecting space (22) separated from a thermal insulation space by a wall (23) is provided. Yarns (Y) spun out from a spinning machine enter the thermal insulation space after passing through a slit (25a) at an upper wall (13b) of the thermal insulation box (13), the connecting space, and a slit (24a) on the wall, reciprocate between the rollers (11) and (12) plural times, and then go out from the thermal insulation space to the outside of the thermal insulation box through a slit (24b) of the wall (23), the connecting space, and a slit (25b) of the upper wall (13b). In so doing, an accompanied flow generated around the running yarns (Y) causes a part of air having flown out from the thermal insulation space through the slit (24b) to return to the thermal insulation space through the connecting space and the slit (24a).

Description

technical field [0001] The present invention relates to a wire heating device for heating a wire. Background technique [0002] Patent Document 1 describes a technique in which a plurality of yarns spun from a spinning machine are heated and stretched in two roll units, and then wound up in a winder (winder). In more detail, a plurality of yarns spun from a spinning machine are wound multiple times between godet rolls and separation rolls in each roll unit, and are guided while being conveyed multiple times between these rolls. The rollers are heated. Then, the heated yarn is stretched between two godet rolls constituting two roll units. [0003] In addition, the godet roll and separation roll of each roll unit are accommodated in the inner space (insulation space) of the box (insulation box), so that the heat generated by the heater of the godet roller does not easily escape from the inner space to the outside. Moreover, two slits are formed on the outer wall of the box ...

AI Technical Summary

Problems solved by technology

In addition, when the inflow of cold air into the above-mentioned internal space or the outflow of warm air from the above-mentioned internal space occurs, the temperature of the above-mentioned internal space drops, so the power consumption of the heater required to heat the yarn to an appropriate temperature increase

[0006] In particular, when the number of running threads is large or the running speed of the threads is fast, the amount of cold air flowing into the interior space and the amount of warm air flowing out of the interior space increase due to the increase of accompanying flow, so the above-mentioned problems become significant

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