VARIABLE RAKE SHEAR

摘要

A variable rake shear comprises a housing (8), a first blade (1) mounted in a first blade mounting (4), a second blade (2) mounted in a second blade mounting (3); and a control device (5) to control movement of one blade mounting to shear the material. Each blade mounting is movable in at least one dimension relative to the housing. One blade is an active blade (1) and the other blade is a passive blade (2). A rake adjustment mechanism (6a, 6b) for at least one of the mountings (3, 4) and the mounting (4) for the active blade (1) has a torque tube linkage mechanism (10, 11, 12).

主权项

1. A variable rake shear comprising:
a housing; a first and a second blade mounting supported by the housing; a first blade mounted in the first blade mounting, a second blade mounted in the second blade mounting; a control device configured and operable to control movement of one of the first and second blade mountings to cause the blades to shear a material; each blade mounting is movable in at least one dimension relative to the housing; one of the first and second blades is an active blade and the other of the first and second blades is a passive blade; the shear further comprising a rake adjustment mechanism configured for adjusting the rake angle for at least one of the first and second blade mountings and the blade therein; and wherein the blade mounting for the active blade further comprises a torque tube linkage mechanism configured and operable for adjusting torque to control the balance of force on the blade mountings, as the blade mountings move the blades past each other.