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US 5,857,396 AGranted
Slitting machine
OwnerJoseph M. Strouse, Jr.inventor
Life of this patent
Estimating the term…
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OwnerJoseph M. Strouse, Jr.inventor
Estimating the term…
A slitting machine includes a pair of parallel arbors structured to support a plurality of cutting knives. The arbors are mounted to a head stock and tail stock on the slitting machine. The head stock and tail stock each rotatably support eccentrics which support the end portions of the arbors. Angular contact bearings, such as tapered roller bearings or ball bearings with inclined races, are positioned between the head stock and tail stock and the respective eccentrics and also within the eccentrics between the arbors and the eccentrics. Mechanisms are provided for providing an axial load across all of these bearings to eliminate play and so to accurately position the arbors so that cutting accuracy can be maintained. One such mechanism is a collet/piston supporting the operator's end of the arbors. The collet piston is received in a cylinder to which hydraulic pressure can be applied through a rotary coupling. When pressurized, the collet piston is forced onto a tapered end of the arbor, accurately positioning the arbor. At the same time, because the cylinder is mounted to the inclined bearings within the eccentric, the reaction force is transmitted through the angular contact bearings to the machine frame, precisely locating the arbors centrally of the bearings in which they are mounted. The collet piston may be made double acting so that it can assist in removing the arbor from the collet/piston. This permits self locking tapers to be used.
A slitting machine adapted for slitting thin sheets of material, said machine comprising a base, a head stock mounted to the base and a tail stock mounted to the base, a pair of arbors for carrying knives to slit the sheet material fed through the machine, each of the arbors being rotatably mounted in eccentrics which are rotatable in the head stock and tail stock to move the arbors toward each other and into a slitting position and away from each other to permit installation or removal of the knives;
A slitting machine having
A slitting machine having a frame, a head stock connected to the frame, a tail stock connected to the frame, a pair of arbors each with first and second ends, the arbors extending between the head stock and the tail stock, a first pair of eccentrics mounted in the head stock and supporting the first ends of the arbors, a second pair of eccentrics mounted in the tail stock and supporting the second ends of the arbors, and angular contact bearings between the first pair of eccentrics and the head stock and angular contact bearings between the second pair of eccentrics and the tail stock, each of the angular contact bearings including an inner race, an outer race and rotatable elements disposed in rolling contact with the inner and outer races, the outer races of angular contact bearings which support the first ends of the arbors being integrally formed of a single piece of metal and the outer races of the angular contact bearings which support the second ends of the arbors being integrally formed of a single piece of metal.
Dependencies are inferred from the claim text.