Die cut roll
AssigneeNippon Tungsten Co., Ltd.
InventorsKenji Nakahara, Koichi Ibusuki, Shouji Eguchi, Kohei Kitahara, Kei Tokumoto, Shigeya Sakaguchi
Life of this patent
Estimating the term…
Abstract
A die cut roll includes a rotary driving roll having projecting pressure cutting blades on a surface thereof formed in accordance with the shape of a product to be cut to thereby form a die cutter and an anvil roll adapted to receive an edge of each of the projecting pressure cutting blades of the die cutter. The rotary driving roll includes inclined finishing surfaces formed adjacent to a top smooth portion of an edge of each of the projecting pressure cutting blades by a grinding process so that the inclined finishing surfaces have grinding flaws which make an angle φ of 50°-90° to ridgelines defining the top smooth portion.
Claims25
A die cut roll comprising a rotary driving roll having projecting pressure cutting blades on a surface thereof formed in accordance with the shape of a product to be cut to thereby form a die cutter, and an anvil roll adapted to receive an edge of each of said projecting pressure cutting blades of said die cutter, said rotary driving roll comprising inclined finishing surfaces formed adjacent to a top smooth portion of an edge of each of said projecting pressure cutting blades by a grinding process so that said inclined finishing surfaces have grinding flaws which make an angle φ of 50°-90° to ridgelines defining said top smooth portion.
A die cut roll comprising a rotary driving roll having projecting pressure cutting blades on a surface thereof formed in accordance with the shape of a product to be cut to thereby form a die cutter, and an anvil roll adapted to receive an edge of each of said projecting pressure cutting blades of said die cutter, said rotary driving roll comprising
- inclined finishing surfaces formed adjacent to a top smooth portion of an edge of each of said projecting pressure cutting blades by a grinding process so that said inclined finishing surfaces make an angle φ of 50°-90° to ridgelines defining said top smooth portion,
- said projecting pressure cutting blades extending in axial and circumferential directions of said rotary driving roll,
- at least one of an edge width and an apex angle of said projecting pressure cutting blades extending in the axial direction of said rotary driving roll being smaller than a corresponding one of an edge width and an apex angle of said projecting pressure cutting blades extending in the circumferential direction of said rotary driving roll.
A die cut roll comprising a rotary driving roll having projecting pressure cutting blades formed in accordance with the shape of a product to be cut to thereby form a die cutter, and an anvil roll adapted to receive an edge of each of said projecting pressure cutting blades of said die cutter, said rotary driving roll comprising
- inclined finishing surfaces having a surface roughness Ra of less than 0.1 μm formed on ridgeline—including surface portions adjacent to a top smooth portion of an edge of said projecting pressure cutting blade,
- said projecting pressure cutting blades extending in axial and circumferential directions of said rotary driving roll,
- at least one of an edge width and an apex angle of said projecting pressure cutting blades extending in the axial direction of said rotary driving roll being smaller than a corresponding one of an edge width and an apex angle of said projecting pressure cutting blades extending in the circumferential direction of said rotary driving roll.
A die cut roll comprising a rotary driving roll having projecting pressure cutting blades on a surface thereof formed in accordance with the shape of a product to be cut to thereby form a die cutter, and an anvil roll adapted to receive an edge of each of said projecting pressure cutting blades of said die cutter, said rotary driving roll comprising inclined finishing surfaces formed adjacent to a top smooth portion of an edge of each of said projecting pressure cutting blades so that said inclined finishing surfaces have flaws which make an angle φ of 50°-90° to ridgelines defining said top smooth portion.
A die cut roll comprising a rotary driving roll having projecting pressure cutting blades on a surface thereof formed in accordance with the shape of a product to be cut to thereby form a die cutter, and an anvil roll adapted to receive an edge of each of said projecting pressure cutting blades of said die cutter, said rotary driving roll comprising
- inclined finishing surfaces formed adjacent to a top smooth portion of an edge of each of said projecting pressure cutting blades by a grinding process so that said inclined finishing surfaces make an angle φ of 50°-90° to ridgelines defining said top smooth portion,
- said projecting pressure cutting blades extending in axial and circumferential directions of said rotary driving roll,
- at least one of an edge width and an apex angle of said projecting pressure cutting blades extending in the axial direction of said rotary driving roll being smaller than a corresponding one of an edge width and an apex angle of said projecting pressure cutting blades extending in the circumferential direction of said rotary driving roll.
Dependencies are inferred from the claim text.