Cold shear machine with twin crank shafts

Abstract

Provided is a cold shear machine with twin crank shafts, including cold shear machine box body, a main transmission crankshaft, a connecting rod, and an upper blade holder crankshaft with a same eccentric distance as the main transmission crankshaft, the main transmission crankshaft is connected to the blade holder crankshaft through the connecting rod. When standing by for shearing, the centerline position of the upper blade holder crankshaft is fixed, eccentricities of the main transmission crankshaft and the upper blade holder crankshaft rotate synchronously; when shearing, the eccentricity of the upper blade holder crankshaft is vertically upward, fixed and static relative to the upper blade holder, the centerline of the upper blade holder crankshaft moves in a vertical direction, and the main transmission crankshaft drives the upper blade holder and the upper blade holder crankshaft to move up and down twice the eccentric distance to complete the shearing.

Dependencies are inferred from the claim text.