Tool feeding device for use in a work forming machine
OwnerAngelo Cremonainventor
Life of this patent
Estimating the term…
Abstract
A device to rapidly move away and subsequently move closer to the wood stock the blade-holding unit and bar-carrying unit, after each cutting operation, in a vertical type wood shearing machine, comprising and characterized by one or more pairs of screws, which when rotating determine the axial feeding motion of the assembly, as well as an equal number of hydraulic double-acting cylinders provided at the rear ends of the screws and connected thereto, which determine by the axial displacement of the respective pistons the actual quick movement away and movement closer of the assembly with respect to the wood stock to be cut.
Claims12
A shearing machine comprising a blade holding and bar carrying unit mounted for movement relative to a work piece for effecting a cutting operation on the work piece, a feed means for moving said unit relative to said work piece, said feed means including a feed screw connected to said unit, drive means connected to said feed screw to effect the rotation of said screw for determining the axial feeding motion of said unit during the cutting operation, and said feed means further including hydraulic actuating means connected to said feed screw for effecting a rapid retraction and advancement of said unit relative to said work piece between cutting operations.
A shearing machine comprising a blade holding and a bar carrying unit, a feed device comprising at least one pair of feed screws, said feed device being connected to said unit, drive means for effecting the rotation of said screws to determine the axial feeding motion of said device during a cutting operation of a work piece, and a piston and cylnder assembly connected to each of the respective screws, whereby the axial displacement of the piston of said assemblies effects a rapid advancement and retraction of said unit toward and away from the work piece between cutting operations.
Dependencies are inferred from the claim text.