Rotary cutting unit
AssigneeElpatronic AG
InventorRené Langhans
Life of this patent
Estimating the term…
Abstract
A circular-cutter unit for equipment cutting flat lengths of material and sheet metal in a horizontal plane has upper and a lower circular blades both in planes perpendicular to the horizontal plane and in a longitudinal direction, carried by an upper and lower blade shaft, respectively, which are parallel with the horizontal plane and perpendicular to the longitudinal direction. The two blade shafts are rigidly and rotatably mounted in a common frame. The frame is U-shaped with the upper and lower legs connected by a flat yoke intersecting the horizontal plane at an acute angle. Several cutter units are mounted in a single apparatus and driven by a common drive from which the units can be individually detached for servicing.
Claims16
A circular cutter unit for cutting lengths of flat material comprising:
- upper and lower circular blades lying in planes substantially perpendicular to a plane defined by the flat material and parallel with a longitudinal direction of the flat material;
- upper and lower blade shafts respectively supporting said upper and lower circular blades, said shafts extending parallel with said plane of the material and perpendicular to said longitudinal direction;
- a non-positive drive connection between said circular blades including a transport ring mounted for rotation with the blade on one of the blade shafts and in driving relationship with the blade on the other of the blade shafts;
- a frame having substantially a U-shape when viewed in a direction perpendicular to the plane of the flat material with upper and lower legs interconnected by a flat yoke intersecting said plane of the flat material at an acute angle,
- means for rotatably supporting said upper and lower blade shafts respectively in said upper and lower legs;
- and
- means for establishing and adjusting a cutting gap between said two circular blades.
An apparatus for cutting flat lengths of sheet metal in a generally horizontal plane comprising:
- a plurality of circular cutting units each including:
- upper and lower circular blades lying in planes substantially perpendicular to the horizontal plane and parallel with a longitudinal direction in which the sheet metal is fed between the circular blades,
- upper and lower blade shafts respectively supporting said upper and lower circular blades, said shafts extending parallel with said horizontal plane and perpendicular to said longitudinal direction,
- a frictional drive connection between said blade shafts including a transport ring mounted respectively on each one of the upper and lower blade shafts adjacent the upper and lower circular blades respectively, and disposed in frictional driving relationship with the circular blade on the other of the upper and lower blade shafts;
- a frame having substantially a U-shape when viewed from above the horizontal plane with upper and lower legs interconnected by a flat yoke intersecting said horizontal plane at an acute angle, and
- means for rotatably supporting said upper and lower blade shafts respectively in said upper and lower legs, and means for establishing and adjusting a cutting gap between said two circular blades;
- said apparatus further comprising a plurality of parallel guide rails extending perpendicular to said longitudinal direction in which the sheet metal is fed between the circular blades;
- and wherein
- said frame of each of said circular cutter units is slideably mounted on said guide rails so that each of said circular cutter units is independently positionable along said guide rails.
Dependencies are inferred from the claim text.