An auxiliary support device for a rolling-cut shear, including: a lower cutting table; a plurality of first hydraulic support cylinders, a plurality of support plates, a plurality of second hydraulic support cylinders shorter than the first hydraulic support cylinders, a slide plate, and a plurality of horizontal hydraulic cylinders. The lower cutting table includes a first front end including a first mounting groove, and a second mounting groove, and an inner plate. The bottom wall of the second mounting groove includes a plurality of first bolt holes and a plurality of first recesses. The inner plate is embedded in the second mounting groove through a plurality of bolts passing through the plurality of first bolt holes. The inner plate includes a plurality of second bolt holes and a plurality of second recesses. The plurality of support plates lean against the inner plate.

Embodiments of the invention provide systems and methods for ram return in cutting tools. A cutting tool can include a frame, a cutting blade coupled to the frame, and an outer ram coupled to the frame. The outer ram can include a bore to receive hydraulic fluid to provide a first stage of movement for the cutting blade into to a cutting position. The cutting tool can also include an inner ram, an extension spring, a compression spring, or a gas spring to provide a second stage of movement to return the ram and the cutting blade to a non-cutting position.

Embodiments of the invention provide systems and methods for ram return in cutting tools. A cutting tool can include a frame, a cutting blade coupled to the frame, and an outer ram coupled to the frame. The outer ram can include a bore to receive hydraulic fluid to provide a first stage of movement for the cutting blade into to a cutting position. The cutting tool can also include an inner ram, an extension spring, a compression spring, or a gas spring to provide a second stage of movement to return the ram and the cutting blade to a non-cutting position.

A hydraulic actuator includes a cylinder having a first end and a second end. A first plate is proximate the first end of the cylinder and a second plate is proximate the second end of the cylinder. A first tie rod is coupled between the first plate and the second plate so that the first plate and the second plate move together relative to the cylinder.

A hydraulic actuator includes a cylinder having a first end and a second end. A first plate is proximate the first end of the cylinder and a second plate is proximate the second end of the cylinder. A first tie rod is coupled between the first plate and the second plate so that the first plate and the second plate move together relative to the cylinder.

A micro-cavity liquid-phase shearing device for preparing quasi-two-dimensional materials includes a movable plate system, a fixed plate system, a feed liquid external circulation system, a driven gear system and a charging barrel. The movable plate system includes a movable plate unit and a driving gear. The fixed plate system includes a fixed plate unit and a support. A tank of the movable plate unit has a primary shear cavity, an annular micro-gap between a movable plate of the movable plate unit and a fixed plate of the fixed plate unit is defined as a secondary shear micro-cavity. The feed liquid, which flows outside the feed pipe through the liquid discharge port thereof, is primarily sheared in the primary shear cavity by the movable plate system, and then is secondarily sheared in the secondary shear micro-cavity by the movable plate and the fixed plate, and then returns to the charging barrel.

A micro-cavity liquid-phase shearing device for preparing quasi-two-dimensional materials includes a movable plate system, a fixed plate system, a feed liquid external circulation system, a driven gear system and a charging barrel. The movable plate system includes a movable plate unit and a driving gear. The fixed plate system includes a fixed plate unit and a support. A tank of the movable plate unit has a primary shear cavity, an annular micro-gap between a movable plate of the movable plate unit and a fixed plate of the fixed plate unit is defined as a secondary shear micro-cavity. The feed liquid, which flows outside the feed pipe through the liquid discharge port thereof, is primarily sheared in the primary shear cavity by the movable plate system, and then is secondarily sheared in the secondary shear micro-cavity by the movable plate and the fixed plate, and then returns to the charging barrel.

A dual action hydraulic piston assembly including a cylinder having first and second inlet ports on a first end and an outlet port on a second end, a conduit connected to the first inlet port and extending into the cylinder, an inner ram slidable along an outer surface of the conduit, and an outer ram slidable between the inner ram and the cylinder. The inner and outer rams are configured to move together toward the second end of the cylinder in response to a fluid being displaced via the first inlet port into the conduit, which displaces a second fluid through the outlet port at a first flow rate. The outer ram is configured to move toward the second end of the cylinder in response to a fluid being displaced via the second inlet port, which displaces the second fluid through the outlet port at a second flow rate.

A dual action hydraulic piston assembly including a cylinder having first and second inlet ports on a first end and an outlet port on a second end, a conduit connected to the first inlet port and extending into the cylinder, an inner ram slidable along an outer surface of the conduit, and an outer ram slidable between the inner ram and the cylinder. The inner and outer rams are configured to move together toward the second end of the cylinder in response to a fluid being displaced via the first inlet port into the conduit, which displaces a second fluid through the outlet port at a first flow rate. The outer ram is configured to move toward the second end of the cylinder in response to a fluid being displaced via the second inlet port, which displaces the second fluid through the outlet port at a second flow rate.

An auxiliary support device for a rolling-cut shear, including: a lower cutting table; a plurality of first hydraulic support cylinders, a plurality of support plates, a plurality of second hydraulic support cylinders shorter than the first hydraulic support cylinders, a slide plate, and a plurality of horizontal hydraulic cylinders. The lower cutting table includes a first front end including a first mounting groove, and a second mounting groove, and an inner plate. The bottom wall of the second mounting groove includes a plurality of first bolt holes and a plurality of first recesses. The inner plate is embedded in the second mounting groove through a plurality of bolts passing through the plurality of first bolt holes. The inner plate includes a plurality of second bolt holes and a plurality of second recesses. The plurality of support plates lean against the inner plate.