A compact, portable in-line heat press machine that holds the upper heated platen horizontal and laterally aligned with the lower platen is provided. The lower frame has front and rear pivot joints on each side of such frame to accommodate linkage arms pivotally attached to it and the upper frames which has similar pivot joints. As such the upper heated platen is lifted up and straight back with respect to the lower platen assembly which completely clears the lower platen for unobstructed loading/unloading of lower platen while keeping the upper platen assembly in a horizontal position. When the upper platen is moved into the lower position, a locking mechanism affixes the upper and lower platen assemblies so that the platen actuators can cause a linear movement between them thus causing a pressing action.

The present invention relates to an electrohydrostatic system having a hydraulic cylinder comprising a first cylinder chamber and a second cylinder chamber. Furthermore, the electrohydrostatic system has a fluid hydraulic supply device for providing a hydraulic fluid, a fluid hydraulic motor pump unit, designed to provide a fluid hydraulic volume flow in order to move the hydraulic cylinder. A motor control device is designed to provide a rated current for an electrical drive of the fluid hydraulic motor pump unit. Moreover, the electrohydrostatic system has at least one fluid hydraulic safety valve, which on a first valve side is connected to one of the cylinder chambers of the hydraulic cylinder and on a second valve side is connected to the fluid hydraulic motor pump unit. The fluid hydraulic safety valve can be bridged via a bypass connection with a fixed orifice plate, wherein the bypass connection is connected to the first valve side and to the second valve side of the at least one fluid hydraulic safety valve. Moreover, the electrohydrostatic system has a pressure sensor that is connected to one of the cylinder chambers of the hydraulic cylinder. The pressure sensor is designed to detect a fluid hydraulic pressure on one of the cylinder chambers and, according to the detected fluid hydraulic pressure, to provide an enabling signal for the motor control device to provide the rated current for the electrical drive of the fluid hydraulic motor pump unit.

The present invention relates to an electrohydrostatic system having a hydraulic cylinder comprising a first cylinder chamber and a second cylinder chamber. Furthermore, the electrohydrostatic system has a fluid hydraulic supply device for providing a hydraulic fluid, a fluid hydraulic motor pump unit, designed to provide a fluid hydraulic volume flow in order to move the hydraulic cylinder. A motor control device is designed to provide a rated current for an electrical drive of the fluid hydraulic motor pump unit. Moreover, the electrohydrostatic system has at least one fluid hydraulic safety valve, which on a first valve side is connected to one of the cylinder chambers of the hydraulic cylinder and on a second valve side is connected to the fluid hydraulic motor pump unit. The fluid hydraulic safety valve can be bridged via a bypass connection with a fixed orifice plate, wherein the bypass connection is connected to the first valve side and to the second valve side of the at least one fluid hydraulic safety valve. Moreover, the electrohydrostatic system has a pressure sensor that is connected to one of the cylinder chambers of the hydraulic cylinder. The pressure sensor is designed to detect a fluid hydraulic pressure on one of the cylinder chambers and, according to the detected fluid hydraulic pressure, to provide an enabling signal for the motor control device to provide the rated current for the electrical drive of the fluid hydraulic motor pump unit.

A forming press having a machine bed on which a first tool is arranged, and having a tool carrier which is accommodated to the machine bed such that it can move relative thereto and further including a second tool and a drive for moving the tool carrier and a machine control for controlling the drive, and having a safety control for disabling the drive, wherein the safety control deactivates a first radiation detector if a first status signal, which results from a comparison between a first current position value with a first deactivation position value matches with a second status signal which results from a comparison between a second current position value with the first deactivation position value.

High pressure presses, components for high pressure presses and related methods are provided herein. In one embodiment of the invention, a press base may include a piston cavity formed in the press base and a piston cavity sleeve positioned in the piston cavity. The piston cavity sleeve may include a wall having an outer surface and an inner surface opposite the outer surface. The piston cavity sleeve may further include a floor having an upper surface and a lower surface opposite the upper surface. An outer radius may be formed at a juncture of the outer surface of the wall and lower surface of the floor and an inner radius may be formed at a juncture of the inner surface of the wall and upper surface of the floor. The inner radius may exhibit a radius of curvature that is greater than a radius of curvature of the outer radius.

High pressure presses, components for high pressure presses and related methods are provided herein. In one embodiment of the invention, a press base may include a piston cavity formed in the press base and a piston cavity sleeve positioned in the piston cavity. The piston cavity sleeve may include a wall having an outer surface and an inner surface opposite the outer surface. The piston cavity sleeve may further include a floor having an upper surface and a lower surface opposite the upper surface. An outer radius may be formed at a juncture of the outer surface of the wall and lower surface of the floor and an inner radius may be formed at a juncture of the inner surface of the wall and upper surface of the floor. The inner radius may exhibit a radius of curvature that is greater than a radius of curvature of the outer radius.

A movable guard for safeguarding a machine, comprising: a protective cover for covering a working area of the machine; a counterweight; a connecting element for connecting the protective cover to the counterweight; a deflection element, which is configured to deflect the connecting element in such a way that the protective cover and the counterweight are movable in mutually opposite directions; and a drive, which acts on the counterweight in order to drive the counterweight.

A torque reaction arrangement (50) for twin press-roll pulp washers comprises a first torque reaction arm (10), a second torque reaction arm (20), a first link (19), and a second link (29). The links are provided between the ends of a respective torque reaction arm and a point close to the mounting to a respective stator of the other torque reaction arm. The torque reaction arms are rigidly mounted to a respective stator of a respective press roll motor. A twin press-roll pulp washer with such a torque reaction arrangement is also disclosed.

A torque reaction arrangement (50) for twin press-roll pulp washers comprises a first torque reaction arm (10), a second torque reaction arm (20), a first link (19), and a second link (29). The links are provided between the ends of a respective torque reaction arm and a point close to the mounting to a respective stator of the other torque reaction arm. The torque reaction arms are rigidly mounted to a respective stator of a respective press roll motor. A twin press-roll pulp washer with such a torque reaction arrangement is also disclosed.

An abnormality in a device of interest is detected on the basis of the distance from a predetermined reference curve to a point represented by a first index value and a second index value in a two-dimensional plane having the first index and the second index as axes.