Hydraulic Two-Side Rolling-Cut Shears for Steel Plate Processing

The patent replaces the complex mechanical drive system with a hydraulic system. The hydraulic two-side rolling-cut shears use hydraulic cylinders to drive the rolling cut blades, eliminating the need for complex mechanical transmissions, gears, and linkages found in conventional mechanical rolling-cut shears. This substitution maintains the cutting capability while significantly reducing device complexity and production costs.

The patent employs a dynamic rolling cut mechanism where the cutting blades move in a rolling motion rather than a fixed linear path. The hydraulic system allows for adjustable cutting parameters including blade speed, pressure, and angle, enabling the shears to adapt to various plate thicknesses. This dynamic approach maintains structural simplicity while dramatically expanding thickness processing capability beyond what fixed-disc shears can achieve.

The patent uses curved rolling cut blades that move in an arc-shaped path during cutting, rather than the straight linear motion of guillotine shears. The blades are designed with specific curvature radii that allow them to roll along the material being cut, creating a shearing action that produces high-quality edges without the collapsed corners typical of guillotine cutting. This curved rolling mechanism maintains structural simplicity while dramatically improving shear accuracy and product quality.