Textiles: spinning – twisting – and twining – Apparatus and processes – Stopping or starting
Patent
1981-12-16
1984-02-21
Petrakes, John
Textiles: spinning, twisting, and twining
Apparatus and processes
Stopping or starting
19 025, 57 81, D01H 1316, D01H 1318
Patent
active
044321953
ABSTRACT:
A device is provided for interrupting the feed of a roving to drawing frames on ring spinning machines in response to thread breakage at a respective spinning unit. The device includes a clamping segment annularly clamped about a lower drawing roll and having abuttments for selectively lifting the upper drawing roll away from the lower roll to interrupt the feed of roving in response to movement of the clamping segment to an interrupting position. To control the clamping segment, a locking detent lever is provided which is spring-loaded into a locking position engaging the clamping segment and movable to an unlocking position in response to an electrical drive mechanism which, in turn, is controlled by a thread end break detection device. In particularly preferred embodiments, a capacitor is used to energize the drive means to unlock the lever, the capacitor being charged during normal spinning operation and discharged for a preset time period during the unlocking operation.
REFERENCES:
patent: 3695022 (1972-10-01), Landwehrkamp
patent: 4280321 (1981-07-01), Marzoli
patent: 4326371 (1982-04-01), Soar
Petrakes John
Spindelfabrik Suessen Schurr Stahlecker & Grill GmbH
LandOfFree
Device for interrupting the feed of a roving to drawing frames does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Device for interrupting the feed of a roving to drawing frames, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Device for interrupting the feed of a roving to drawing frames will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1029732