METHOD AND APPARATUS FOR SUPPORTING PRODUCT DURING CUTTING

摘要

Elongated product is cut while the product moves longitudinally by a cutting blade which passes through the product and which also moves longitudinally with the product. The product is supported by first and second product supports which are spaced apart in the longitudinal direction to provide a gap through which the cutting blade passes. The product supports are mounted for movement in the longitudinal direction and move longitudinally as the cutting blade passes through the gap.

主权项

1. A method of supporting first and second longitudinally moving elongated logs of convolutely wound paper in first and second parallel lanes during cutting comprising the steps of:
a) supporting the first longitudinally moving log in a first lane by first and second supports which are spaced apart in the longitudinal direction of the first log to provide a first gap, b) supporting the second longitudinally moving log in a second lane by third and fourth supports which are spaced apart in the longitudinal direction of the second log to provide a second gap, c) moving the first log in a longitudinal direction over the first and second supports and moving the second log in a longitudinal direction over the third and fourth supports, d) cutting the first longitudinally moving log a first time by passing a cutting blade through the longitudinally moving first log and through said first gap while moving the cutting blade in said longitudinal direction, e) during the first cutting step of the first log moving at least one of the first and second supports in said longitudinal direction in which the first log is moving, f) cutting the second longitudinally moving log a first time by passing said cutting blade through the longitudinally moving second log and through said second gap while moving the cutting blade in said longitudinal direction in which the second log is moving, g) during the first cutting step of the second log moving at least one of the third and fourth supports in said longitudinal direction in which the second log is moving, h) cutting the first longitudinally moving log a second time by passing a cutting blade through the longitudinally moving first log and through said first gap while moving the cutting blade in said longitudinal direction, i) during said second cutting step of the first log moving at least one of said first and second supports in said longitudinal direction so that the dimension of said first gap between the first and second supports is different in the second cutting step of the first log than in the first cutting step of the first log, j) cutting the second longitudinally moving log a second time by passing a cutting blade through the longitudinally moving second log and through said second gap while moving the cutting blade in said longitudinal direction, and k) during said second cutting step of the second log moving at least one of said third and fourth supports in said longitudinal direction so that the dimension of said second gap between the third and fourth supports is different in the second cutting step of the second log than in the first cutting step of the second log.