High performance rotary cutting apparatus for profiles with straight edges
AssigneeSandvik Hyperion AB
InventorJacques Joseph Philippe Secondi
Life of this patent
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Abstract
The present invention relates to a rotary cutting apparatus for cutting a web of material, including a cutting unit rotatably mounted on a support, a rotary cutter rotatably disposed in the cutting unit, the rotary cutter having a longitudinal axis, and at least one cutting edge disposed on the rotary cutter, wherein the at least one cutting edge is orientated at an angle to the longitudinal axis of the cutter. The cutting unit being counter orientated to the feed direction of the web by an adjustable angle equal to the cutting edge angle, less than the cutting edge angle or greater than the cutting edge angle.
Claims20
A rotary cutting apparatus for cutting a web of material, the cutting apparatus comprising:
- a support;
- a cutting unit movably disposed on the support;
- a rotary cutter rotatably disposed in the cutting unit, the rotary cutter having a longitudinal axis;
- and
- at least one cutting edge disposed on the rotary cutter,
- wherein the at least one cutting edge is orientated at an angle relative to the longitudinal axis of the rotary cutter,
- wherein the cutting unit is adjustably orientated relative to a feed direction of the web by an adjustable angle that is in a direction opposite to that of the angle at which the at least one cutting edge is orientated, and
- wherein the cutting unit is rotatable relative to the support about a rotation axis that is perpendicular to the longitudinal axis and that is located at a position along the length of the cutting edge where, in a view down the rotation axis, the longitudinal axis of the cutter intersects the cutting edge.
A rotary cutting unit for cutting a web of material, the cutting unit comprising:
- a frame;
- a rotary cutter rotatably disposed in the frame, the rotary cutter having a longitudinal axis;
- and
- at least one cutting edge disposed on the rotary cutter,
- wherein the at least one cutting edge is orientated at an angle to the longitudinal axis of the cutter,
- wherein the cutting unit is adjustably orientated relative to a feed direction of the web of material by an adjustable angle that is in a direction opposite to that of the angle at which the at least one cutting edge is orientated, and
- wherein the cutting unit is rotatable relative to the support about a rotation axis that is perpendicular to the longitudinal axis and that is located at a position along the length of the cutting edge where, in a view down the rotation axis, the longitudinal axis of the cutter intersects the cutting edge.
A method for cutting a profile from a web of material using a rotary cutting unit including a frame, a rotary cutter rotatably disposed in the frame, the rotary cutter having a longitudinal axis, and at least one cutting edge disposed on the rotary cutter, wherein the at least one cutting edge is orientated at an angle to the longitudinal axis of the cutter, wherein the cutting unit is adjustably orientated relative to a feed direction of the web of material by an adjustable angle that is in a direction opposite to that of the angle at which the at least one cutting edge is orientated, and wherein the cutting unit is rotatable relative to the support about a rotation axis that is perpendicular to the longitudinal axis and that is located at a position along the length of the cutting edge where, in a view down the rotation axis, the longitudinal axis of the cutter intersects the cutting edge, the method comprising:
- rotatably adjusting a position of the cutting unit to be at the adjustable angle;
- rotating the rotary cutter about the longitudinal axis to cut the profile from the web of material.
Dependencies are inferred from the claim text.