A projector emits laser light, and an optical receiver includes a photodetector. When an upper table is lowered, a safety controller controls lowering of the upper table to stop, when it is determined that the optical receiver is in a light obstructing state in a period in which a condition is satisfied that a first distance between a tip of a punch and an upper end of a material is equal to or greater than a second distance between the tip of the punch and the photodetector, and controls the lowering to continue without stopping the lowering of the upper table even when it is determined that the optical receiver is in the light obstructing state in a period in which a condition is satisfied that the first distance is less than the second distance.

The invention relates to a bending machine, in particular a press brake, having an upper beam and a lower beam. The upper beam is movable in a working direction of the bending machine in order to form a workpiece by bending along a bending line, which extends in a width direction of the bending machine. The bending machine includes a safety system having a first functional element and a further functional element for monitoring a safety area between both functional elements and between the upper beam and the lower beam. The safety system is arranged to follow the movement of the upper beam in the working direction. The first functional element and the further functional element are mechanically connected to one another via a flexible tractive force transmission means and an adjustment device for changing the position of the functional elements. The adjustment device includes a coupling section.

A pressing device for pressing meat products, in particular frozen and/or partly frozen meat products, preferably fresh meat products and/or bacon, comprises a pressing chamber which extends along a longitudinal axis and into which a product to be pressed can be inserted, wherein the pressing chamber comprises at least one counter-element and at least one contact element, which is movable in the direction of the counter-element, that cooperate such that the product inserted into the pressing chamber can be compressed between the at least one counter-element and the at least one contact element; and wherein the pressing device comprises at least one servomotor that is configured to move the at least one contact element.

In a method of pressing and processing meat products, in particular frozen and/or partly frozen meat products, preferably fresh meat products and/or bacon, the products are inserted into a pressing chamber of a pressing device and are pressed in the pressing chamber by at least one displaceable contact element, with the contact element being moved by means of a servomotor.

The invention relates to a method for operating a bending press (10), wherein the bending press (10) comprises a first platform (1) with a first tool mount (11) and a second platform (2) with a second tool mount (12), wherein one of the platforms (1) is movable relative to the other platform (2) for performing a working movement, a safety device (20) for creating a light barrier (27), in particular laser light barrier, extending between the tool mounts (11, 12) transversely to the working movement of the movable platform (1), which light barrier (27), in a cross-section, forms a light field (7), wherein the safety device (20) has a first mount (21), which carries a light emitter (25) for creating the light barrier (27), and a second mount (22), which carries a light receiver (26) for receiving the light of the light barrier (27), and wherein the first mount (21) is arranged on a first side of the first platform (1) and is adjustable relative to the first platform (1) by a first adjustment drive (23), such that the position of the light barrier (27) relative to the first tool mount (11) can be changed in the direction of the working movement of the movable platform (1), a controller (9) that is connected to the first adjustment drive (23), characterized in that
before a bending operation or a series of bending operations, the controller (9) brings the first mount (21) into a working position by controlling the first adjustment drive (23), in which working position the tool tip (4) of a bending tool (8) held by the first tool mount (11) lies within the light field (7) formed by the light barrier (27).

A servo press line operation method operates a servo press line in which a servo press and a servo transfer device are disposed in a workpiece transfer direction. The servo press line operation method includes causing a transfer controller to receive a master signal that causes the servo transfer device to make a motion in synchronization with the servo press, the transfer controller controlling a motor of the servo transfer device using a motor instruction, causing the transfer controller to determine whether or not an abnormality in the master signal has occurred, and causing the transfer controller to generate the motor instruction based on a stop signal that stops the motor of the servo transfer device, instead of the master signal, when the transfer controller has determined that an abnormality in the master signal has occurred.

Bending machine with a machine bed including a workpiece table with a workpiece support surface and an upper tool which is linearly movable mounted to the machine bed along a movement axis and which has a bottom edge arranged adjacent to the workpiece support surface. The lower edge and the movement axis define a movement plane which separates a handling space from a workpiece receiving space, in which a first optical safety device is arranged in the handling space and a second optical safety device is arranged in the workpiece receiving space, and with a safety controller to process sensor signals from the optical safety devices and for switching off a drive associated with the upper tool. The safety controller provides a first operating mode, in which only the first sensor signals are processed, and a second operating mode, in which only the second sensor signals are processed.

An exchangeable plate is suspended on a top plate and held in a lower end position without force by a hydraulic clamps. In an upper end position, it is connected with force fit to, and re-detached from, the top plate as a function of a stripping operation of a scrap web from a V-ring pressure plate. The exchangeable plate is transferred from the lower into the upper end position by movement of a ram, and transferred from the upper into the lower end position by gravity. A sensing distance, adapted to the brake path of the drive system, is provided between the top plate and the exchangeable plate. A sensing device in the V-ring pressure plate outputs a signal to the computer for stopping the drive system and deactivating the hydraulic system. A. sensor detects premature movement of a pressure plate in the exchangeable plate.

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.