Method for minimizing material utilization during spreading of a

Details Method for minimizing material utilization during spreading of a Method for minimizing material utilization during spreading of a

1988-04-12

1989-10-17

Garrett, Robert E.

Sheet-material associating

Reciprocating-carriage piler

With clamp

B65H 2946

Patent

active

048741574

ABSTRACT:
In order to improve a method for minimizing material utilization during spreading of a flawed material web, in particular, a fabric web, such that it can be carried out in a manner which always economizes on material or fabric, it is proposed that proceeding from a region determined by the flaw, a set of at least two virtual stop lines be placed in the pattern representation and all flawless pattern pieces cut by the virtual stop lines be determined, that by applying an optimization criterion which takes into consideration the flawless pattern pieces cut by the virtual stop lines and the flawed pattern pieces, one of the virtual stop lines be selected and the stop line be arranged at it, that a maximum distance from the stop line be determined which maximum distance corresponds to the furthest distance of a start of one of the flawless pattern pieces cut by the stop line or of one of the flawed pattern pieces from the stop line, and that the restart line be placed in the direction opposite to the spreading direction at least within the maximum distance from the stop line.

REFERENCES:
patent: 3769488 (1973-10-01), Hasslinger
patent: 4583181 (1986-04-01), Gerber et al.

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