Traitement en cours

Veuillez attendre...

Paramétrages

Paramétrages

Aller à Demande

1. WO1993017840 - CYLINDRE ROTATIF DE COUPE A COIN DE VERROUILLAGE POUR LAME DE DECOUPE FLOTTANTE ET PROCEDE DE REALISATION

Note: Texte fondé sur des processus automatiques de reconnaissance optique de caractères. Seule la version PDF a une valeur juridique

[ EN ]

What is Claimed is:
1. A rotary cutting die assembly comprising:
a support roll having a general cylindrical exterior surface with axially opposite first and second ends;
means at the opposite first and second ends of the support roll for mounting the support roll for rotation on a rotary die cutting press;
a first slot formed in the exterior surface of the support roll extending an axial length cross the exterior surface, the first slot having mutually opposed axial sidewalls and the first slot extending into the support roll a first depth from the exterior surface;
a second slot formed in the exterior surface of the support roll extending an axial length across the exterior surface, the second slot extending into the support roll a second depth from the exterior surface;
a cutting blade received in the first slot, the cutting blade having a cutting edge projecting from the first slot;
means in both the first slot and the second slot for urging the cutting blade against one of the axial sidewalls of the first slot, thereby securing the cutting blade in the first slot; and
a bar is received in the first slot between the cutting blade and the second slot, and the urging means urges the cutting blade and the bar apart from each other and against the opposed sidewalls of the first slot.
2. The die assembly of Claim 1, wherein:
the second slot has at least one axial sidewall extending the axial length of the second slot.
3. The die assembly of Claim 1, wherein:
the axial lengths of the first and second slots are substantially equal.
4. The die assembly of Claim 1, wherein:
the first depth is larger than the second depth.

5. The die assembly of Claim 1, wherein:
the urging means is mounted on the bar and extends from the bar into the second slot.
6. The die assembly of Claim 1, wherein:
the first slot and the second slot are positioned side-by-side on the support roll.
7. The die assembly of Claim 1, wherein:
the urging means comprise a plurality of set screws received in the bar and oriented at an angle to the cutting blade, each of the set screws being accessible in the second slot with the cutting blade and bar received in the first slot, the set screws being operable to urge the cutting blade and the bar against the opposite axial sidewalls of the first slot.
8. The die assembly of Claim 7, wherein:
a shim is received in the first slot between the cutting blade and the bar.
9. In an improved rotary die cutting assembly having a support roll with a first axial slot formed therein, the first slot having mutually opposed sidewalls and a cutting blade received in the slot, an improvement comprising:
a second axial slot formed in the support roll;
means received in both the first slot and the second slot for urging the cutting blade against one of the opposed sidewalls of the first slot and thereby secure the cutting blade in the first slot; and
a bar of predetermined length is received in the first slot adjacent the cutting blade, and the urging means includes a plurality of set screws received in the bar and spatially arranged along at least a portion of the length of the bar, the second slot having an axial length substantially equal to the portion of the length of the bar along which the set screws are arranged.
10. The die assembly of Claim 9, wherein: the plurality of set screws are accessible in the second slot for turning the set screws in the bar to urge the cutting blade and bar against the opposed sidewalls of the first slot and thereby secure the cutting blade in the first slot.
11. The die assembly of Claim 10, wherein:
the plurality of set screws are received in the bar oriented at an acute angle relative to the cutting blade with the cutting blade and bar received in the first slot.
12. A method of making a rotary cutting die assembly, the method comprising:
forming a support roll having a generally cylindrical exterior surface;
forming a first axial slot in the support roll, the slot having opposed axial sidewalls and a bottom wall;
inserting a cutting blade in the slot;
inserting a bar in the slot, the bar having a plurality of set screws received therein, each set screw being oriented at an angle relative to the cutting blade and each set screw having opposite driving and driven ends, the driving ends being positioned by the bar toward the bottom wall of the slot to exert a driving force on the cutting blade, and the driven ends being positioned by the bar toward an opening of the slot in the support roll exterior surface where they are accessible to be engaged and driven by a tool; and,
tightening the set screws with a tool to exert a driving force on the cutting blade, thereby urging the cutting blade toward one sidewall of the slot while urging the bar toward the opposite sidewall of the slot, thereby securing the cutting blade in the slot.
13. The method of Claim 12, further comprising:
forming a second axial slot in the support roll so and the driven ends of the set screws are received in the second slot where they are accessible to be engaged and driven by a tool.
14. The method of Claim 13, further comprising: forming the first and second slots side-by-side and communicating with each other.
15. The method of Claim 13, further comprising: forming the first slot with a greater depth than the second slot.
16. The method of Claim 13, further comprising: spatially arranging the plurality of set screws along a length of the bar, and forming the second slot with an axial length substantially equal to the length of the bar along which the set screws are arranged.
17. The method of Claim 12, further comprising: orienting the plurality of set screws in the bar at an acute angle relative to the cutting blade.
18. The method of Claim 13, further comprising: forming the second slot in the support roll with at least one axial sidewall opposing an axial sidewall of the first slot.