Centralized control system for open end spinning machines

Details Centralized control system for open end spinning machines Centralized control system for open end spinning machines

1979-09-10

1981-02-10

Petrakes, John

Textiles: spinning, twisting, and twining

Apparatus and processes

Piecing up

57 81, 57 93, 57100, D01H 1502, D01H 1244, D01H 1316

Patent

active

042493692

ABSTRACT:
A centralized control system for open end spinning machines comprises a group control unit essentially consisting of a first spinning control means composed of a plurality of sequentially operated logical elements connected in series, the first spinning control means producing from the respective logical elements parallel outputs each of which is fed to a plurality of spinning units so as to control the spinning operation thereof, and an individual control unit essentially consisting of a second spinning control means each of which constituent is the same as the first spinning control means. A spinning mechanism includes a yarn breakage sensor provided in the stream of spun yarn, a driving means for driving the spinning mechanism including a plurality of driving motors, controlled by the output from the group or individual control unit. When there occurs no yarn breakage in any one of the plurality of spinning units, the spinning units are all controlled by group control unit, while when there occurs yarn breakage in any one of the plurality of spinning units, only the spinning unit in which yarn breakage is occured is shifted from the group control unit to the control of the individual control unit, and then after yarn breakage occured in the spinning unit is repaired, the spinning unit is for a second time shifted to the control of the group control unit.

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patent: 4159616 (1979-07-01), Takeuchi et al.
patent: 4163359 (1979-08-01), Honjo

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