Method and fabric laying machine for exact positioning of a lead

Details Method and fabric laying machine for exact positioning of a lead Method and fabric laying machine for exact positioning of a lead

1988-12-19

1990-08-07

Look, Edward K.

Sheet-material associating

Associating and folding

Zigzag package

493937, B65H 2946

Patent

active

049461508

ABSTRACT:
In order to achieve exact positioning of a leading edge of a fabric web in a fabric web guide of a fabric spreading machine, it is suggested for a method and apparatus that the fabric web is moved forward with its leading edge in the direction of spreading up to the starting line, the leading edge is then detected and the fabric web slowed down and stopped, that after stopping it is determined whether or not the leading edge coincides with the starting line, and that when the leading edge does not coincide with the starting line the fabric web is withdrawn contrary to the direction of spreading for a predetermined distance and then moved forward again in the direction of spreading up to the starting line.

REFERENCES:
patent: 4381859 (1983-05-01), Jung
patent: 4392646 (1983-07-01), Costigan
patent: 4589644 (1986-05-01), Gratsch

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