Slitter/rewinder machine
AssigneeProduct Search, Inc.
InventorsFranklin C. Bradshaw, Terry G. Rutledge
Life of this patent
Estimating the term…
Abstract
A slitter/rewinder machine for processing web material such as label stock into a plurality of narrower widths. The web from the feed roll is pulled through the machine by the powered rewind arbor shafts. The machine includes various processing stations including an inspection station, splice table, a web guide, web clamp and a slitter station. The slitter station has nip rollers which are rotated by the passing web and which rollers, in turn, power the knife shafts which carry adjustable slitting blades. Constant web tension is controlled at the unwind station by a "dancer" which maintains proper pressure on a brake.
Claims13
A slitter/rewinder machine for longitudinally slitting a roll of web material and converting the web material into a plurality of webs of reduced width, said slitter/rewinder machine comprising:
- (a) a first frame;
- (b) an unwind station having an unwind shaft rotatably mounted with respect to the first frame and having means for securing a roll of web material to be converted thereon, said unwind shaft further having a pulley secured thereto;
- (c) tension control means for maintaining a substantially constant tension on the web, said tension control means including a second frame pivotally mounted with respect to said first frame having a dancer idler thereon engageable with the web, a brake drum carried on said second frame and belt means extending between said brake drum and said pulley;
- (d) means for applying a predetermined force to said second frame and to maintain selective contact between said dancer idler and said web;
- (e) a slitter station including a pair of coaxial knife shafts extending laterally of said web, adjustable rotary knife blades on said knife shafts selectively positionable on said shaft, said slitter station including a pair of nip rollers disposed adjacent said knife shafts and being rotatively driven by the web passing between the rollers, and wherein at least one of said nip rollers is in driving engagement with at least one of said knife shafts;
- (f) a drive train including a motor in driving engagement with a rewind shaft, said rewind shaft having means thereon for detachably securing a rewind roll and further including a drive belt extending about a pulley on said rewind shaft and in driven engagement with said motor;
- and
- (g) idler means selectively engageable against said drive belt to maintain predetermined tension thereon.
Dependencies are inferred from the claim text.