Cutting – With product handling means – Including means to divert one portion of product from another
Patent
1994-03-25
2000-03-21
Rachuba, M.
Cutting
With product handling means
Including means to divert one portion of product from another
83112, 83165, 83306, 83444, B23D 2508
Patent
active
060389516
ABSTRACT:
High speed flying shears with contrarotating blades (13) fitted to blade-holder drums (30), the shears comprising an upstream one-channel switch (16) of a start-stop type which conveys the rolled stock (11) lengthwise into sharing area and can be oriented laterally on a plane substantially containing the axis of feed of the rolled stock (11) and parallel to and lying between the planes containing shafts (12) of rotation of the blade-holder drums (30), the circumferential position of the blades (13) being associated with the lateral position of the upstream one-channel switch (16) at least in the transient time of the feed of the rolled stock (11) through the shearing area (35), a two-channel (22-23) switch (20) which can be oriented laterally substantially on the same orientation plane as, and in synchronization with, the one-channel switch (16), the two-channel switch (20) including the inlets of two enlarged channels (22-23) superimposed on each other on a plane perpendicular to the axis (12) of rotation of the blade-holder drums (30), a central partition plate the blades (13) being two on each drum (30) and arranged on one drum (30) as a counterpart to the blades (13) on the other drum (30) so as to form a specific pair of blades (13a) to shear the leading end (11a) of the rolled stock (11) and to create in the rolled stock (11) a first terminal arcuate portion, and a specific pair of blades (13b) to shear the trailing end (11b) of the rolled stock (11) and create in the trailing segment of the rolled stock a second contrary leading arcuate portion.
REFERENCES:
patent: 3834260 (1974-09-01), Sieurin et al.
patent: 5040440 (1991-08-01), Harvey
Danieli & C. Officine Meccaniche SpA
Rachuba M.
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