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US 4,062,259 AGranted
High cutting speed flying shear machine
AssigneeS.I.M.A.C. S.p.A.
InventorFerruccio Sclippa
Life of this patent
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Abstract
A first shear-unit is essentially combined with at least one second shear-unit of the same type in a parallel way or in series, to form one single shear machine, wherein the cutting of an advancing bar is alternately at one or the other shear and for this purpose employing a bar-deviator, which is mounted upstream of these shears.
Claims20
A complex shear machine for automatic fly-cutting of an advancing bar by means of rotating knives, comprising:
- a single frame;
- two shear units;
- a common drive means for driving both of said shear units;
- and
- at least one deviator means for deviating the advancing bar alternately to each of said shear units,
- wherein each said shear unit comprises -
- a case;
- two knife carrying axles supported by said case;
- a rotating knife carried by each of said axles in such a manner to permit shearing contact with one another once during each revolution;
- transmission means for transmitting the movement of one axle to the other axle;
- clutch means, connected to one of said axles, for permitting drive transmission from said drive means to said axles;
- brake means connected to one of said axles for braking said axles;
- and
- repositioning means for repositioning the rotational position of said axles, independent of said drive means,
- whereby, when one said shear unit executes cutting, the other is repositioning the axles thereof to prepare for the successive cutting.
12 more elements
Dependencies are inferred from the claim text.