A planetary transmission for transmitting drive power to a work machine, comprising a plurality of planetary gearwheels, a plurality of planetary shafts and at least one planetary carrier, the planetary gearwheels being arranged in each case rotatably on one of the planetary shafts, and the planetary shafts being fastened in each case to the planetary carrier, characterized in that the planetary carrier is configured for a releasable connection to a work machine shaft.

A mechanical press, with at least one drive shaft having a driver that is eccentric with respect to a shaft axis, and a sliding block. The sliding block is driven by the driver to perform a forcibly guided movement. During an execution of a pressure stroke, the sliding block is guided on at least one sliding surface on the pressure-input side opposite to a pressure-input-side surface of a slide guide. The sliding block has a sliding surface on the pressure-output side lying opposite to the pressure-input side surface, this surface being guided on a pressure-output-side surface of the slide guide, wherein the sliding surface on the pressure-input side of the sliding block has a concave or convex curvature. The sliding surface on the pressure-output side of the sliding block has the opposite concave or convex curvature, respectively.

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 drawing press according to the invention includes a support structure for supporting a metal sheet holder which is part of a tool and supported on the press frame via the support structure. The metal sheet holder is assigned a plunger with a die tool, whereas the plunger is moved by means of a plunger drive which includes a blocking position. The blocking position is obtained, for example, by a drive which, in the locking position does not transmit any movement of the drive output to the driving servomotor. This can be achieved, for example, by an eccentric drive in the stretched position thereof. For performing the actual drawing stroke, the stamping tool is vertically movably supported. A carriage is raised or lowered by the press table by means of a table drive. As table drive, preferably a servomotor with a non-linear drive, such as an eccentric drive is used.

A method and a press are proposed for an energy-efficient drive of a press (1) with a bottom drive, in which a drive device (2) disposed in a bottom section (3), a plunger (1.1) executing a stroke (H) and receiving an upper tool part (1.2) with at least one acting tie rod (2.1.2) of a drive train (2.1) are provided and the upper tool part (2.1) corresponding to a bottom tool part (3.2) disposed in the bottom section (3) machines or forms a work piece (5). The drive device (2) is operated by at least one motor (2.1.1) and by way of a control and regulation device (4) connecting the motor (2.1.1) and the drive train (2.1). Each drive train (2.1) can be operated by its own motor (2.1.1). When using a drawing device with a holder (3.3.1), it is operated in the change and during at least a partial path of the respective stroke (H) by the drive train (2.1) while observing a shaft-type free space (3.2) provided in the bottom section (3) in a coupled or decoupled manner by a releasable rotatory or translational active connection.

A press system includes a detection unit configured to detect occurrence of an abnormality during press working for a workpiece, and an abnormality determination unit configured to determine an abnormality level, based on the abnormality detected by the detection unit and a stoppage period for which a pressing operation is stopped after occurrence of the abnormality.

A method for an adjustment of a phase shift of the movement of at least one internal ram, which is pivotally mounted by means of a drive shaft, in relation to the movement of at least one external ram, which is pivotally mounted by means of a drive shaft, of a multiple-action mechanical transverse shaft press. According to the invention, the method steps effected are a) stopping, delaying or accelerating at least one drive shaft and b) adjusting a phase angle of the at least one internal ram in relation to a phase angle of the at least one external ram by means of at least one electronically controlled rotational movement of at least one drive shaft.

A press with a press drive for moving a plunger in stroke direction (H). The press drive comprises two electric drive motors which are controllable independently of each other. The two drive motors are connected to the plunger via a drive unit. A control arrangement is provided for controlling the two drive motors. The control arrangement includes a characteristic plunger curve (K) which determines the plunger positions and/or the plunger movement and/or the plunger force dependent on time or dependent on a so-called virtual press angle. In addition, the control arrangement includes an additional condition which is independent of the characteristic plunger curve (K). Via the additional condition the operation of the press drive, for example, in an optimum operating range and/or a low-wear lubrication state of the support bearings of the drive unit can be ensured.

A press machine includes a press frame, a crankshaft having a first eccentric portion, at least one crankshaft motor connected to the crankshaft, a ram, an upper tool section supported by the ram and a lower tool section fixedly attached to the press frame, a linkage type ram drive mechanism connected to the crankshaft and including at least one pivot support pin, and a ram adjustment mechanism including a pivot support member supporting the at least one pivot support pin. Wherein the at least one secondary ram drive link is pivotally connected at a first end to the at least one pivot support pin and at a second end to a first end of the at least one main ram drive link. The at least one main ram drive link is pivotally connected at a second end to the ram. The at least one ram drive connecting link is rotatably supported by the at least one first eccentric portion of the crankshaft at a first end and pivotally connected at a second end to the at least one main ram drive link at a point between the first and second ends of the at least one main ram drive link.