Double twisting spindle with a pneumatically operated threading

Details Double twisting spindle with a pneumatically operated threading Double twisting spindle with a pneumatically operated threading

1981-03-05

1983-06-07

Petrakes, John

Textiles: spinning, twisting, and twining

Apparatus and processes

Threading up

57 5883, 57 88, D01H 1500, D01H 786

Patent

active

043864953

ABSTRACT:
A double twisting spindle is equipped with a pneumatically operated threading device. An injector nozzle is provided in the spindle rotor, an air stream through which nozzle sucks a thread into a hollow spindle axle and moves the thread through a thread channel in the storage plate. A compressed-air supply device is arranged below the spindle rotor for supplying compressed air to a central connecting channel provided in the spindle rotor and in communication with the injector nozzle. A common operating lever is provided which first operates a spindle brake and then opens a valve of the compressed-air supply device. The connecting channel has at its open lower end a funnel-shaped enlargement. The compressed-air supply device is stationary and has a blow nozzle which is fixedly arranged a small distance from the lower end of the spindle rotor and has an outlet opening which is coaxial with the funnel-shaped portion, the diameter of the outlet opening being smaller than the inlet diameter of the funnel-shaped portion.

REFERENCES:
patent: 3166882 (1965-01-01), Stahlecker
patent: 3731478 (1973-05-01), Franzen
patent: 3805504 (1974-04-01), Franzen
patent: 4168605 (1979-09-01), D'Agnolo
patent: 4287712 (1981-09-01), Franzen

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