Method of optimizing a machine that cuts material
OwnerWolfgang Mohrinventor
Life of this patent
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Abstract
A method for optimizing the cutting of sheets of material that are stacked on a bench in a cutting machine. Before cutting the sheets, a beam descends to hold the sheets fast while guillotine blade descends and cuts the sheets. After the sheets have been cut, the blade and beam are lifted, with the lower edge of the beam following the sharp edge of the blade. A definite distance between the blade and the top of the stack is determined while the blade rises after cutting the sheets. The rise of the blade is terminated at the upper end of that distance, which is determined by a pick-up mounted stationary on the holdfast beam. This pick-up detects the position of the rising blade in relation to the holdfast beam.
Claims12
A method of optimizing a cutting process in a cutting machine, comprising the steps of:
- stacking material to be cut in a stack with a top on a bench;
- descending a holdfast beam onto said material before being cut to hold said material fast;
- descending a guillotine blade perpendicularly to a surface of the bench and cutting the material;
- lifting said blade and said beam after said material has been cut with a lower edge of said beam following a sharp edge of said blade;
- providing a definite distance between said blade and the top of the stack while said blade lifts subsequent to cutting the material;
- terminating the lift of the blade at an upper end of at least said definite distance;
- said definite distance being detected by a pick-up mounted stationary on said holdfast beam, said pick-up detecting positions of the blade when lifting in relation to said holdfast beam, said holdfast beam being hydraulically operated;
- and initiating the lift of said hydraulically operated holdfast beam when said definite distance is detected by said pick-up.
A method as defined in claim 33, wherein said other definite distance is defined between said lower edge of said holdfast beam and the top of the stack and is detected by an additional pick-up mounted stationary on said holdfast beam and following said holdfast beam as said holdfast beam lifts.
Dependencies are inferred from the claim text.