Back to results
US 10,583,503 B2Granted
Plunge slitting with enhanced scrap threading capability using notching shears
AssigneeButech Bliss
InventorsJohn R. Buta, Jason Cuff
Life of this patent
Estimating the term…
Abstract
A slitting machine for threading scrap material includes first and second arbors; rotary knives disposed on each of the first and second arbors; and a pair of notching modules positioned on opposite ends of the first and second arbors. The notching modules each has a pair of shear knives for making multiple cuts in a strip of material passing through the slitting machine forming notches to enable threading of material to scrap chutes from the slitting machine.
Claims14
A method of using notching modules with a slitting machine comprising:
- providing a slitting machine for threading a strip of material having first and second arbors;
- providing rotary knives disposed on each of first and second arbors, wherein said first and second arbors have a gap between them so said rotary knives do not initially cut said strip;
- providing a pair of notching modules positioned on opposite ends of said first and second arbors;
- providing a pair of opposed shear knives for each of said notching modules;
- making multiple cuts in an associated strip of material by pivoting one of said shear knives towards the other of said shear knives and said strip of material passing through said slitting machine with said shear knives;
- forming a notch in a lead end of said strip of material with a first cut parallel to strip travel and a second cut perpendicular to strip travel;
- and,
- wherein said first and second arbors are moved towards each other while the associated strip travels through the slitting machine so that said gap formed between said first and second arbors is small enough so that the rotating knives cut through said strip of material, including a trim width of said strip of material.
5 more elements
A slitting machine for threading scrap material from an associated strip of material comprising:
- a first arbor and a second arbor disposed on opposite sides of said associated strip of material;
- rotary knives disposed on each of said first and second arbors;
- a pair of notching modules positioned on opposite ends of said first and second arbors;
- said notching modules are operated via a hydraulic cylinder;
- wherein said notching modules each comprises a pair of shear knives wherein one of said shear knives is pivoted towards the other of said shear knives via said hydraulic cylinder for making multiple cuts in a lead end of said associated strip of material passing through said slitting machine thereby forming notches for reducing a width of said lead end of said associated strip of material;
- and
- said rotary knives are then moved into contact with said associated strip of material to cut through said associated strip of material including a trim width of said associated strip of material.
4 more elements
Dependencies are inferred from the claim text.