Yarn texturing apparatus with heat sensor in stuffer box to cont

Details Yarn texturing apparatus with heat sensor in stuffer box to cont Yarn texturing apparatus with heat sensor in stuffer box to cont

1990-11-13

1992-02-18

Schroeder, Werner H.

Textiles: manufacturing

Thread finishing

Surface modification of running length

28267, 28263, 28248, D02G 100, D02J 100

Patent

active

050881680

ABSTRACT:
A yarn texturing apparatus is disclosed which includes a nozzle having a yarn duct therethrough, and a perforated stuffer box at the outlet end of the duct. Heated air is introduced into the duct, and the air is heated by a heater which is positioned in the air supply line leading to the nozzle. The output of the heater is controlled by a temperature sensor which is positioned inside the stuffer box. Also, the nozzle comprises two confronting sections which can be separated to facilitate yarn thread-up, and a valve is provided in the supply line to divert the heated air to an exhaust line when the nozzle is opened. A second temperature sensor is positioned in the supply line and is operative when the nozzle is opened to regulate the output of the heater and avoid large fluctuations of its output. In a further embodiment, the heater is controlled by a circuit which stores the signal from the temperature sensor in the stuffer box, and this stored signal is utilized to control the heater when the nozzle is opened.

REFERENCES:
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patent: 3936917 (1976-02-01), Vermeer et al.
patent: 3961402 (1976-06-01), Ferrier et al.
patent: 3965548 (1976-06-01), James
patent: 4118843 (1978-10-01), Schippers et al.
patent: 4369555 (1983-01-01), Nikkel
patent: 4691947 (1987-09-01), Burkhardt et al.
patent: 4724588 (1988-02-01), Runkel
patent: 4796340 (1989-01-01), Gerhards
patent: 4829640 (1989-05-01), Greb et al.
patent: 4956901 (1990-09-01), Koskol et al.
patent: 4999890 (1991-03-01), Nabulon

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