Machine for the treatment web material

Details Machine for the treatment web material Machine for the treatment web material

1982-08-02

1986-10-21

Coan, James F.

Cutting

Cutting motion of tool has component in direction of moving...

Orbital motion of cutting blade

83303, 493 11, 493 22, 493362, B31B 116

Patent

active

046178503

ABSTRACT:
A die-cutting machine comprises two form-carrying rolls (10,12) operable in timed relation to produce alternate blanks, with minimum wastage between the blanks, from a web fed at constant speed by a conventional feed mechanism (14). The rolls (10,12) are driven by computer-controlled variable speed high impulse duty D.C. motors (28,30) supplied with electrical power from thyristor controlled power supplies (36,38). Sensors (18, 24, 26) provide feedback signals representing web speed and instantaneous roll positions and speeds to the programmable computer units (32,34). The use of the computer-controlled D.C. motors avoids backlash problems in previously proposed mechanical drives and allows greater flexibility, especially in maintaining registration between the rolls and preprinted areas on the web. A flywheel arrangement is employed to reduce the loading on the motors during large variations in roll speed.

REFERENCES:
patent: 2599430 (1952-06-01), Beuerman
patent: 3347119 (1967-10-01), Sarka
patent: 3424041 (1969-01-01), Giraud
patent: 3448646 (1969-06-01), Bishop
patent: 3745865 (1973-07-01), Johnson
patent: 4360354 (1982-11-01), Bishop

Affiliated with

Also associated with

Rating

Machine for the treatment web material does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Machine for the treatment web material, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Machine for the treatment web material will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1284596