Spinning frame

Details Spinning frame Spinning frame

1992-07-22

1994-04-19

Ip, Paul

Electricity: motive power systems

Plural, diverse or diversely controlled electric motors

318106, 318107, 318109, 307 68, 307 66, H02P 774, H02J 900

Patent

active

053049004

ABSTRACT:
A flyer frame has a first AC motor for obtaining a general rotational movement of various parts of the frame and a second AC motor for obtaining only a variable component of the rotational movement of the bobbin. An inverter is provided for operating the first and second AC motor. A controller is divided into a general section for operating the frame powered by AC power source, and a winding section for obtaining a winding control of the frame. The winding control section is operated by a DC current, which is usually supplied by an outside AC source. A DC output of the inverter is connected to the winding section via a diode or relay, which usually disconnects the DC line to the winding section and which is closed upon the occurrence of the power failure, for supplying a regenerating current from the inverter to the winding section. A desired winding control is thus maintained upon the occurrence of the power failure, until the stoppage of the frame, to prevent rovings at respective spinning positions from being broken.

REFERENCES:
patent: 4736580 (1988-04-01), Wolf
patent: 4749920 (1988-06-01), Jaeger et al.
patent: 4788818 (1988-12-01), Meissner
patent: 4879475 (1989-11-01), Ruge et al.
patent: 4987734 (1991-01-01), Meyer
patent: 5113123 (1992-05-01), Noser et al.

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