Rotary cutting head, particularly for tobacco cutting machines
AssigneeComas S.p.A.
InventorGiorgio Bragaglia
Life of this patent
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Abstract
A cutting device for cutting a block of tobacco includes a rotatable support and guide structure mounted for rotation about an axis disposed at an angle to the direction of advance of the block of tobacco. A plurality of movable blade carrier elements are mounted on the support guide structure with each element carrying a cutting blade adapted to intersect and penetrate the block of tobacco. Each carrier element is axially movable independently of the other carrier elements and is pressed against a stationary cam member by a thrust member. Upon rotation of the support and guide structure, each blade carrier reciprocates in response due to engagement with the cam member.
Claims4
A cutting device, particularly for cutting a block of tobacco leaving a supply device, comprising:
- a support and guide structure supported so as to be rotatable about an axis lying at an angle to the direction of advance of the block of tobacco;
- a plurality of movable blade-carrier elements mounted on said support and guide structure with each element carrying a cutting blade adapted to intersect and penetrate the block of tobacco leaving the supply device;
- each blade-carrier element and associated blade being movable axially relative to the said support and guide structure independently of each other;
- drive means for rotating the guide and support structure, and
- control means for sequentially effecting an axial reciprocating translational movement of each blade-carrier element in synchronism with a revolution of the support and guide structure during the cutting of the block of tobacco;
- the control means including a stationary cam member having a shaped drive profile;
- each blade-carrier element having a respective feeler member cooperating with said drive profile, and thrust means carried by said structure for urging each feeler against said drive profile of the cam member.
Dependencies are inferred from the claim text.