A die cutter including: a moving platen and a fixed platen; a moving mechanism structured to cause the moving platen to vertically move toward the fixed platen; and a controller structured to control the moving mechanism, wherein the die cutter punches a sheet material with a punching die attached to the fixed platen by bringing the moving platen closer to the fixed platen using the moving mechanism, and the moving mechanism includes: four lift transmission mechanisms structured to pressurize the moving platen upwardly with four pressurizers having different positions in a horizontal direction from one another; and four press motors structured to drive the lift transmission mechanisms, respectively.

A method for the control of a ram movement and ram forces of multi-point servo hybrid presses, where the positions, speeds and forces to drive the ram can be controlled independently of each other by the servo motor, which is assigned to each pressure point or each group of pressure points, for the main drive for the ram movement in the main function and the hydraulic pressure cushions, which are separately assigned to each pressure point of the ram, in an auxiliary function, to influence process-induced position and force settings of the ram in a combinatory interaction to achieve an active control of draw depth and tilt.

Apparatuses, systems, and methods are disclosed for extracting oil from biomass. An ultrasonic stack may be configured to produce ultrasonic vibrations at a first surface. An anvil may include a second surface disposed so that the first surface and the second surface define opposite sides of a space for receiving a biomass. A press coupled to the ultrasonic stack and the anvil may be configured to press the ultrasonic stack and the anvil together to compress the space and/or the biomass disposed in the space. The compressed space may be at least partially unenclosed to permit oil to move out of the biomass.

A press-molding system 1 includes a press-molding unit 2 having a main body 21, a lower molding die 23 installed at the lower portion of the main body 21, a drive part 24 installed to the main body 21, and an upper molding die 26 installed so as to be vertically movable with respect to the lower molding die 23 by the drive part 24, a workpiece weight measuring unit 5 that measures the weight of a workpiece, and a controller 7 that controls the drive part 24 according to the weight of a workpiece measured by the workpiece weight measuring unit 5.

A motion generation device generates motion of a slide in a press device configured to perform press molding by driving the slide up and down using a servo motor as a drive source. The motion generation device includes an acquisition component and a second motion generator. The acquisition component acquires data related to a change in a load exerted on the slide in press molding using a first motion. The second motion generator generates a second motion from the first motion based on the change in the load.

A clamshell die cutting press (10) that can transition between an opening of three inches and 0.937 and anywhere in between without the requirement of filler plates. This is accomplished by attaching the connecting rod or arm (20) that extends between the fixed platen (14) and the movable platen (16) to the fixed platen through an eccentric bevel gear (26). The bevel gear (26) is driven by an electric motor (28) which allows the adjustment to be made with a push of a button, and by moving the bridge rocker plates (34 and 36) and bridge cam stands using linear slides and servo motors.

There is provided a press machine capable of simplifying a slide drive mechanism. The press machine comprises: a slide supported so as to be reciprocally movable; a crankshaft arranged along a longitudinal direction of the slide and having a plurality of eccentric parts; a drive unit configured to rotate the crankshaft; a plurality of yokes and each provided to each of the eccentric parts of the crankshaft and configured to reciprocate, due to rotation of the crankshaft, along a moving direction of the slide; and a plurality of points each connects each of the yokes to the slide, wherein at least one of the plurality of yokes is connected to the slide via some of the plurality of points arranged along a direction perpendicular to an axial direction of the crankshaft.

A power conversion device and a press apparatus capable of preventing an excessive current in a DC-link capacitor are provided. The power conversion device 10 includes a voltage-doubling rectifier circuit 12. In the voltage-doubling rectifier circuit 12, in a voltage-doubling rectification mode, a common connection node Nc between two capacitors 102a and 102b is connected to a predetermined node. A current detector circuit 107 detects a switching current (IL) flowing in the switching elements SW1 and SW2, and a current detector circuit 108 detects a load current Ild of a load 15. In a mode switching period from a full-wave rectification mode to a voltage-doubling rectification mode, a controller circuit 110 controls the switching of the switching elements SW1 and SW2, based on the switching current (IL) and the load current Ild.

Multi-plate powder press (100) for producing a dimensionally accurate pressed part from a compressible material which is fillable into a die (2), having a punching device (3) comprising a multitude of punches (6) and components adjustable relative to one another in the axial direction and adjustable relative to a press part, a drive unit for adjusting the punching device (3) and/or the punches (6) and components, adjustable relative to one another, in and/or counter to a pressing direction, and a numerical control device which is set up and is programmable in order to control a movement sequence of the punching device and/or the punches and components, adjustable relative to one another, in accordance with a control program. The multi-plate powder press (100) has a control command input element for inputting control parameters and has a display element in order to graphically display the punching device (3) and/or the punches (6) and components, adjustable relative to one another, and also movement sequences. Furthermore, a method for controlling the multi-plate powder press (100) is provided.

A method for the control of a ram movement and ram forces of multi-point servo hybrid presses, where the positions, speeds and forces to drive the ram can be controlled independently of each other by the servo motor, which is assigned to each pressure point or each group of pressure points, for the main drive for the ram movement in the main function and the hydraulic pressure cushions, which are separately assigned to each pressure point of the ram, in an auxiliary function, to influence process-induced position and force settings of the ram in a combinatory interaction to achieve an active control of draw depth and tilt.