Method of controlling fly cutting rotary shear

Details Method of controlling fly cutting rotary shear Method of controlling fly cutting rotary shear

1997-06-18

1998-12-22

Rachuba, M.

Cutting

Processes

During movement of work past flying cutter

83 63, 83 76, 83 766, 364472, 36447435, B26D 156

Patent

active

058507728

ABSTRACT:
During a remaining time which is defined by excluding a positioning settling time t.sub.s and a cutting time interval t.sub.T during which a cutting edge is brought into contact with a stock from a period of time T allotted to a cutting operation which is determined by a preset length L.sub.0 and a stock running speed V.sub.A, the cutting edge maintains a speed difference .DELTA. which is as small as possible relative to V.sub.A during a fraction of the remaining time which is as long as possible. An acceleration which causes the speed difference .DELTA. is chosen to be as less as possible below a maximum acceleration which is demanded by the machine specification.

REFERENCES:
patent: 3744889 (1973-07-01), Sable
patent: 3811354 (1974-05-01), Ito
patent: 3869948 (1975-03-01), Rau
patent: 4058041 (1977-11-01), Ito
patent: 4846033 (1989-07-01), Uehlinger et al.
patent: 5054304 (1991-10-01), Hayashi et al.
patent: 5122964 (1992-06-01), Hayashi et al.

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