초록 ▼

A web scoring and/or perforating apparatus for signature folding machines or the like including first and second rollers. Each roller has a scoring or perforating blade portion and a resilient roller portion. The rollers are mounted, preferably, on existing, rotatably driven nip roller shafts, upstr

A web scoring and/or perforating apparatus for signature folding machines or the like including first and second rollers. Each roller has a scoring or perforating blade portion and a resilient roller portion. The rollers are mounted, preferably, on existing, rotatably driven nip roller shafts, upstream of web folding stages in web handling systems. The blade portion of one roller is arranged to interact with the resilient portion of the other roller. Arc lengths of the scoring or perforating roller blade portions and the resilient roller portions are substantially equal to each other and to the fold line of a signature. The rollers, between which the web is advanced, are positioned and oriented to score or perforate portions of the web in alternating directions which correspond to the direction of folding of each layer of the web.

대표청구항 ▼

An improved web scoring apparatus comprising, a first arcuate blade support element having a flat surface and an arcuate peripheral surface, a first arcuate pad support element having a flat surface and an arcuate peripheral surface, said first blade support element and said first pad support elemen

An improved web scoring apparatus comprising, a first arcuate blade support element having a flat surface and an arcuate peripheral surface, a first arcuate pad support element having a flat surface and an arcuate peripheral surface, said first blade support element and said first pad support element arranged to be joined together at the respective flat surfaces so that the respective arcuate peripheral surfaces form a continuous arcuate surface, first arcuate blade means detachably mounted to said first blade support element, first resilient pad means detachably mounted at the peripheral surface of said first pad support element, said first pad support element includes a groove in the peripheral surface thereof to receive said first resilient pad means, said groove includes an enlarged inner end to secure said first resilient pad means, said first resilient pad means includes an enlarged inner end which is detachably secured in said groove, a second arcuate blade support element having a flat surface and an arcuate peripheral surface, a second arcuate pad support element having a flat surface and an arcuate peripheral surface, said second blade support element and said second pad support element arranged to be joined together at the respective flat surfaces so that the respective arcuate peripheral surfaces form a continuous arcuate surface which is mounted adjacent to the continuous arcuate surface of said first arcuate blade support element and said first arcuate pad support element, second arcuate blade means detachably mounted to said second blade support element, and second resilient pad means detachably mounted at the peripheral surface of said second pad support element, said second pad support element includes a groove in the peripheral surface thereof to receive said second resilient pad means, said groove includes an enlarged inner end to secure said resilient pad means, said second resilient pad means includes an enlarged inner end which is detachably secured in said groove,