Cutting die apparatus and method
First Claim
1. A rotary cutting die system for corrugated board comprising:
- a cylindrical anvil;
a substrate secured to a rotary cutting die disposed adjacent to the cylindrical anvil; and
one or more scrap ejectors coupled to the substrate to contact and crush a scrap portion of the corrugated board by compressing the scrap portion flat against the cylindrical anvil wherein upon crushing, the scrap portion falls away from a usable portion of the corrugated board that is not crushed, each of the one or more scrap ejectors comprising a compressible portion having a bottom surface affixed to the substrate and a protective layer cured to a top surface of the compressible portion,wherein the protective layer is cured directly to the top surface of the compressible portion such that no other adhesive material is between the compressible portion and the protective layer, andwherein the protective layer flexes with the compressible portion without separating from it when the compressible portion is compressed.
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Abstract
Embodiments of the present disclosure generally provide a cutting die system. The cutting die system includes a substrate, at least one blade, and an ejector coupled to the substrate. The ejector includes a compressible portion having a top surface and a bottom surface opposite the top surface. The bottom surface is coupled to the substrate and a protective layer is cured to the top surface. A method of die cutting a blank according to an embodiment of the present disclosure includes directing a blank between a cutting die and an anvil, the cutting die comprising a substrate. An ejector coupled to the substrate is compressed between the cutting die and the blank. A scrap piece is cut from the blank as it passes between the cutting die and the anvil, and the scrap piece is ejected by releasing the compressed ejector.
22 Citations
15 Claims
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1. A rotary cutting die system for corrugated board comprising:
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a cylindrical anvil; a substrate secured to a rotary cutting die disposed adjacent to the cylindrical anvil; and one or more scrap ejectors coupled to the substrate to contact and crush a scrap portion of the corrugated board by compressing the scrap portion flat against the cylindrical anvil wherein upon crushing, the scrap portion falls away from a usable portion of the corrugated board that is not crushed, each of the one or more scrap ejectors comprising a compressible portion having a bottom surface affixed to the substrate and a protective layer cured to a top surface of the compressible portion, wherein the protective layer is cured directly to the top surface of the compressible portion such that no other adhesive material is between the compressible portion and the protective layer, and wherein the protective layer flexes with the compressible portion without separating from it when the compressible portion is compressed. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A rotary cutting die system, comprising:
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a cylindrical anvil; a substrate secured to a rotary cutting die disposed adjacent to the cylindrical anvil; one or more blades coupled to the substrate; one or more stabilizers positioned to contact a perimeter of a usable product portion of a blank during cutting; one or more scrap ejectors coupled to the substrate to contact and crush scrap material by compressing the scrap material flat against the cylindrical anvil such that the scrap material falls away from the usable product portion of the blank that is not crushed, each of the one or more scrap ejectors comprising a compressible portion having a bottom surface affixed to the substrate and a protective layer cured to top surface of the compressible portion, wherein the protective layer is cured directly to the top surface of the compressible portion such that no other adhesive material is between the compressible portion and the protective layer; and a product ejector coupled to the substrate and the one or more stabilizers, the product ejector positioned to contact a substantial portion of the usable product portion of the blank during die cutting to reduce or eliminate back folding, wrinkling, and false scoring of the blank. - View Dependent Claims (13, 14, 15)
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Specification