Machine to sharpen bars to a point
AssigneeDanieli & C. Officine Meccaniche SpA
InventorBruno Di Giusto
Life of this patent
Estimating the term…
Abstract
Machine to sharpen bars to a point, especially bars to be drawn, which comprises at least one sharpening assembly and at least one assembly for displacement of the bar in relation to the sharpening assembly, the sharpening assembly (31) consisting of two counterpart rolls (11) each of which contains on the plane of positioning of the bar a groove (24) including at least two sections of reduction, means (14-15) being comprised for the circumferential positioning of the rolls (11) at the desired section of reduction, there also being included at least one rolling assembly (27a) upstream of the sharpening assembly (31) and at least one rolling assembly (27b) downstream of the sharpening assembly (31), such rolling assemblies (27) operating on the bar on a plane substantially at a right angle to the plane of reduction.
Claims13
A machine to sharpen bars to a point, comprising:
- at least one sharpening assembly comprising a pair of circumferentially tangent reduction rolls having parallel axes, each of said rolls containing, at a plane of positioning of a bar, a groove having, in a circumferential direction, at least two different sections, wherein said reduction rolls are rotatable about their axes so as to be able to effect a desired reduction of section of said bar by said reduction rolls;
- an assembly for displacement of said bar in relation to said at least one sharpening assembly;
- at least one upstream rolling assembly upstream of said at least one sharpening assembly;
- and
- at least one downstream rolling assembly downstream of said at least one sharpening assembly, each of said at least one upstream rolling assembly and said at least one downstream rolling assembly having a pair of rolls having axes at a right angle to the axes of said reduction rolls.
Dependencies are inferred from the claim text.