Method for controlling the position of the inversion point of th

Details Method for controlling the position of the inversion point of th Method for controlling the position of the inversion point of th

1992-09-24

1994-07-12

Gilreath, Stanley N.

Winding, tensioning, or guiding

Coil holder or support

Spool or core

242 4300R, B65H 5438

Patent

active

053281110

ABSTRACT:
Equipment for the application of the control method, particularly for spooling machines includes a detect-to the signal from an encoder capable of converting it into a binary number (N1) representing the angular position of the spool, a storing element capable of receiving at its input the binary number (N1) and of storing it for the duration of a cycle, supplying at the output a corresponding continuous signal (N2) to be sent to a digital/analog converter capable of converting the signal (N2) to a voltage value to be sent to an adder to control the servo mechanism, a signal emitting element transmitting a signal whenever the thread guide passes through a predetermined control point of its travel, and control element capable of making available at the input of the detector a correction signal corresponding to this specific cycle, the reading of the correction signal being determined by a detector activated by the signal at the start of each cycle and by the value of the binary number (N1).

REFERENCES:
patent: 3235191 (1966-02-01), Engleman et al.
patent: 4504021 (1985-03-01), Schippers et al.
patent: 4504024 (1985-03-01), Gerhartz
patent: 4667889 (1987-05-01), Gerhartz
patent: 4676441 (1987-06-01), Maag
patent: 4771961 (1988-09-01), Sugioka
patent: 4779813 (1988-10-01), Sugioka et al.
patent: 4798347 (1989-01-01), Schippers et al.
patent: 5056724 (1991-10-01), Prodi et al.

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