Yarn heater and spun yarn drawing apparatus

Abstract

The invention provides a yarn heater and a spun yarn drawing apparatus, wherein the increase in power consumption of a heater due to cooling wind for cooling a motor is restrained. A yarn heater (5) includes: a godet roller (20) configured to heat yarns (Y) and including a roller main body (31) and a heater (32) provided in the roller main body (31) to heat the roller main body (31); a motor (40)configured to rotationally drive the godet roller (20); a fan (44) rotating to generate cooling wind for cooling the motor (40); and a shielding plate (80) preventing an airflow generated in accordance with the generation of the cooling wind from flowing toward the heating roller.

Description

Technical field [0001] The present invention relates to a yarn heating device and a spinning drawing device with the yarn heating device. Background technique [0002] Patent Document 1 discloses a spinning drawing device that heats and draws a yarn spun from a spinning machine. The spinning drawing device includes a plurality of godet rollers (hereinafter referred to as heating rollers) that feed the yarn toward the downstream side in the yarn traveling direction while heating the yarn. Regarding the plurality of heating rollers, the respective roller surfaces are set to a predetermined temperature and are respectively rotationally driven by a plurality of motors. [0003] As the heating roller, for example, an induction heating roller as disclosed in Patent Document 2 is used. The induction heating roller includes: a roller main body; and a heater, and has a coil arranged inside the roller main body. The induction heating rollers are installed side by side on the motor in the ...

AI Technical Summary

Problems solved by technology

Therefore, the heat roller can be cooled more easily than before, and the electric power consumption of the heater is further increased compared with the past, so there is also a problem of offsetting the reduction in electric power consumption achieved by increasing the efficiency of the motor.

[0009] On the other hand, for example, even if a fan or the like is configured such that the flow direction of the cooling air is reversed, in this case, a part of the air sucked by the motor in order to generate the cooling air flows near the heating roller, and the heating roller is cooling concerns

In addition, there is also a concern that part of the air sucked by the motor is heated by the heating roller, thereby increasing the temperature of the generated cooling air and deteriorating the cooling efficiency of the motor.

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