Two-for-one spinning or twisting spindle having a compressed-air

Details Two-for-one spinning or twisting spindle having a compressed-air Two-for-one spinning or twisting spindle having a compressed-air

1980-08-11

1982-05-11

Petrakes, John

Textiles: spinning, twisting, and twining

Apparatus and processes

Threading up

57 5849, 57 587, D01H 786, D01H 1500

Patent

active

043286631

ABSTRACT:
There is described a two-for-one spinning or twisting spindle in which thread drawn from a take-up package is threaded through from the bottom upwards by means of a compressed-air-operated threading arrangement so that it can be connected to thread, coming from a supply package, at the top end of a thread entry tube. In the arrangement shown, a thread storage disc of a two-for-one twisting spindle has therein a thread exit passage 8 the inner end of which opens into a short tube 10 which opens in turn into a hollow shaft 12 of the spindle, leaving an annular gap 11. In operation of the threading arrangement, compressed air is fed into a hollow shank 5 of the spindle from below and flows upwards through the annular gap 11. Because of this the short tube 10 acts as an injector nozzle which sucks the thread into the thread exit passage 8 from the side and transports it upwards through the hollow shaft 12 of the spindle. The thread can thus be knotted at the top end of the spindle which means that the spindle and take-up bobbin do not need to start up at different times as was previously necessary. In another embodiment, compressed air can be supplied to an injector arrangement through a passage in a floor of a protective pot.

REFERENCES:
patent: 3731478 (1973-05-01), Franzen
patent: 3945184 (1976-03-01), Franzen
patent: 3975893 (1976-08-01), Franzen
patent: 4168605 (1979-09-01), D'Agnolo

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