Wireworking – Article making or forming – Forms and frames
Patent
1987-01-27
1988-06-21
Larson, Lowell A.
Wireworking
Article making or forming
Forms and frames
74 68, B21F 304
Patent
active
047519460
ABSTRACT:
A shed-type coil winder is disclosed in which a shed form is supported against rotation within a rotating wire feed envelope. Rotation of the shed form is prevented by an eccentric drive. The eccentric drive includes a wire support rotating about a first axis and an eccentric ring rotating about an eccentric axis spaced from and parallel to the first axis. The eccentric ring is driven by a parallelogram-type linkage so that it rotates with the flyer support in a uniform manner. The eccentric ring engages an eccentric cam on a form support to hold the form support against rotation while the flyer support and the eccentric ring rotate. A window is provided in the eccentric ring through which a wire guide extends with clearance. Consequently, the eccentric drive does not interfere with the rotation of the wire guide system. A jump actuating system is connected to the form support system to axially move the form in a stepwise manner. The jump actuating system includes a linear actuator located laterally outside of the rotating envelope of the wire guide system and connected to the form support through a bearing plate which rotates about the first axis. The jump actuation system is structured so that a relatively small mass is moved with such step-wise movement, permitting very rapid jumps or axial movement of the form with a minimum power requirement. All of the rotating elements of the machine rotate with uniform velocity around their respective centers, so dynamic balance is achieved.
REFERENCES:
patent: 3066542 (1952-12-01), Einhiple
patent: 3732897 (1973-05-01), Arnold et al.
patent: 3874424 (1975-04-01), Muskulus
patent: 3964525 (1976-06-01), Arnold et al.
Larson Lowell A.
Windamatic Systems, Inc.
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