Notch cylinder unit
AssigneeAM International, Inc.
InventorJarold L. Richey
Life of this patent
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Abstract
A notch cylinder unit for selectively activating a plurality of impaling pins such as might be used for separating and removing a strip from a paper web. The notch cylinder unit comprises a cylinder having a longitudinally extending hole and a hollowing driving shaft extending therethrough, at least two rows of removable blades extending radially outwardly from and longitudinally of the cylinder, and adapted to cut a strip in the web, and a plurality of slidably mounted impaling pins generally equally spaced between the rows of blades and adapted to puncture, hook and remove the strip. The notch unit cylinder unit further includes an activating means including an activating means for activating or deactivating the impaling pins.
Claims3
In a notch cylinder unit for a web processing machine wherein at least one web (12) is formed into units by cutting, separating, and removing a strip (10) from the web at regular intervals, said cylinder unit including a rotatable notching cylinder (16) having a surface adapted to engage the web and having at least two notching mechanisms mounted in said surface spaced circumferentially of the surface from each other, each notching mechanism including a pair of removable spaced apart blades extending across said surface and a plurality of impaling pins reciprocably mounted for movement through said surface between said blades, and means for actuating said pins to move outward of the surface while said blades are engaged with the web to impale a strip of web material on said pins;
- the improvement comprising
- said actuating means including means for disabling the reciprocation of said pins in one of said notching mechanisms, and means to easily remove the associated pair of spaced blades, to change the number of strips removed per unit length of the web.
Dependencies are inferred from the claim text.