The drawing press (10) according to the invention has for driving its ram (15) a directionally reversing gear mechanism (22, 54), for example a coupling gear mechanism, and at least one servomotor (23). The servomotor (23) passes through the reversal point (Ut) of the ram movement, which is predetermined by the kinematics of the coupling gear mechanism, for example the extended position of an eccentric drive. During the closing of the die (18), that is to say during a press stroke, the servomotor (23) is activated in such a way that it first passes through this reversal point (Ut), then stops, reverses and then passes through it once again, in order to open the die (18) again. Consequently, the braking to a standstill and re-acceleration of the servomotor for the upper ram (15) takes place while the actual drawing operation is still or already being performed, i.e. during the forming of the metal blank, which significantly reduces the cycle time.

A press machine includes a press frame having first and second portions, a crankshaft, a crankshaft, a ram, a ram drive mechanism supported by the first portion of the press frame at a primary force application location, a ram guide linearly guiding the ram, and supported by the second portion of the press frame at a ram guide location; and a working tool including an upper tool section and a lower tool section configured for the processing of a workpiece. The upper tool section is fixedly attached to the ram and the lower tool section is fixedly attached to the press frame at a lower tool location. The primary force application location has a first working position during the processing of the workpiece, and a second resting position when the workpiece is not being processed. The ram guide location has a first working position during the processing of the workpiece, and a second resting position when the workpiece is not being processed. The difference between the working position and the resting position of the ram guide location is less than the difference between the working position and the resting position of the primary force application location.

A drive device (10) for a forming machine (11) includes a hypocycloid gear assembly (20) having an eccentric gear (23), a stationary annulus gear (24) and a planetary gear system (28). The planetary gear system (28) includes an orbiting gear (29) orbiting and rolling in an annulus gear (24). The orbiting gear (29) is connected to at least one first planetary gear (35). On the first planetary gear (35), a first planetary gear equalization mass (m.sub.2) is disposed diametrically opposite an output bearing. At least one first eccentric gear equalization mass (m.sub.3) is arranged on the eccentric gear (23). The first eccentric gear equalization mass (m.sub.3) is arranged diametrically opposite, relative to a planetary gear axis (PA) about which the planetary gear system (28) rotates. The resultant forces and torques acting on the annulus gear (24) can at least be reduced by the equalization masses.

Provided is a servo press machine having a configuration that allows miniaturization of the servo press machine, and a motor using the same. A servo press machine includes a servomotor, a crankshaft rotated by driving of the servomotor, a connecting rod connected to an eccentric portion of the crankshaft, and a slide connected to the connecting rod, wherein two connecting rods are connected to the crankshaft, the servomotor is an axial gap motor, a rotor of the axial gap motor is assembled with the crankshaft between the two connecting rods, and a stator of the axial gap motor is fixed to a crown in which the crankshaft is housed.

The present invention relates to a press suitable for forming hot blanks into components. The press of this invention includes a mechanical press, which may be servo-driven, a hydraulically controlled bolster and a stationary bed. The mechanical press is adapted for vertical reciprocal movement towards the stationary bed for hot forming the blanks placed in dies on the stationary bed. The hydraulically controlled bolster is adapted for quenching the hot formed blank placed on the die. The present invention relates also to a method of hot forming or hot stamping blanks using the press of the present invention.

The invention relates to a pressing tool and a method for pressing a single- or multi-layer product in a web-processing operation by means of a pressing tool (1) comprising a frame (3), an upper tool module (4) with an upper pressing plate (40) and a lower tool module (5) with a lower pressing plate (50), the upper tool module (4) and the lower tool module (5) each being adjustably mounted on the frame in the transport direction (I) of the web-processing operation, wherein, after the pressing tool (1) has been closed, the upper tool module (4) and the lower tool module (5) are driven separately relative to the frame (3) in a synchronous manner in the transport direction (I) during an operating period.

An object of the present invention is to provide a crank-type pressing device that is able to successfully support a rotator and is allowed to be reduced in size. A crank-type pressing device (1) includes: a rotator (15) that rotates around a first rotation axis (C1) upon receiving a driving force from a motor (10); a bearing (16) supporting the rotator (15) such that the rotator (15) is rotatable; a link mechanism (20) including a first pin (21) connected to an eccentric hole (14a) of the rotator (15); and a pressing member (18) connected to a second pin (22) of the link mechanism (20). The bearing (16) and the eccentric hole (14a) are disposed on a pressing axis (V) perpendicular to the first rotation axis (C1).

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. The pressing chamber comprises a counter-element and a pressing member that is movable by a drive, wherein the pressing member can be moved from a starting position towards the counter-element into an end position in order to compress the product, and wherein the drive is configured to drive at least one eccentric cam, which is rotatable about an axis of rotation, in order to move the pressing member from the starting position into the end position, wherein the pressing member can be moved from the starting position into the end position by a rotation of the eccentric cam of more than 90 degrees.

A motion generation device is configured to generate motion of a slide of a press device including the slide to which an upper die is attached, a bolster on which a lower die is placed, and a servomotor configured to move the slide reciprocally in the up and down direction. The motion generation device includes a motion generation section. The motion generation section is configured to generate a derivative motion of the slide at a cycle time different from the cycle time of the standard motion of the slide, such that the derivative motion includes the same motion as a first region of the standard motion including at least from top dead center to the end position of the molding region, and the speed of the slide at top dead center of the derivative motion is the same as the speed of the standard motion.

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. The pressing chamber comprises a counter-element and a pressing member that is movable by a drive, wherein the pressing member can be moved from a starting position towards the counter-element into an end position in order to compress the product, and wherein the drive is configured to drive at least one eccentric cam, which is rotatable about an axis of rotation, in order to move the pressing member from the starting position into the end position, wherein the pressing member can be moved from the starting position into the end position by a rotation of the eccentric cam of more than 90 degrees.