Process of controlling numerically controlled back-and-forth run

Details Process of controlling numerically controlled back-and-forth run Process of controlling numerically controlled back-and-forth run

1997-10-30

1999-08-03

Ip, Paul

Electricity: motive power systems

Positional servo systems

318561, 318632, 364475, 83318, 83 37, G05D 23275, B26D 156

Patent

active

059329858

ABSTRACT:
A treating period T=L.sub.0 /V is determined from a preset treating length L.sub.0 and a stock running speed V. An advancing acceleration is made as small as possible consistent with a requirement that an advancing time T.sub.F of the treating machine (=advancing positioning interval t.sub.1 +settling time t.sub.s +treating interval t.sub.c +retracting deceleration interval t.sub.2) is equal to or less than T/2 and a requirement that (t.sub.1 /2+t.sub.s) V assumes a given value. Both a retracting acceleration and a retracting speed are made as small as possible consistent with a requirement that an advanced distance is equal to a retracted distance and a requirement that a stop positioning interval t.sub.6 is made as close to a minimum value as possible.

REFERENCES:
patent: 3809986 (1974-05-01), Visser
patent: 4099113 (1978-07-01), Hayashi
patent: 4112999 (1978-09-01), Gasper
patent: 4266276 (1981-05-01), Hayashi et al.
patent: 4600865 (1986-07-01), Caputo
patent: 5105700 (1992-04-01), Kusakabe
patent: 5850772 (1998-12-01), Hayashi

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