摘要:
The proposed device comprises a set (2) of punches (3) mounted on the actuating unit (4) of the press, and two pairs of coupled carriages (5 and 6). The carriages are kinematically linked to one another in such a way as to allow opposing synchronised movement. The carriages slide along guide tracks in parallel planes perpendicular to the working direction of the punches (3). The top carriages (5) are provided with receiving sockets for mounting the dies (7), while the bottom carriages (6) are provided with receiving sockets for mounting receptacles (8). The carriages are provided with a mechanism for fixing them in their working positions. The device has a drive for moving the carriages. Each punch (3) includes a lever/push rod mounted at its periphery and capable of radial movement, as well as safety sleeves mounted on the punches (3) in such a way that they can slide along the axes of the punches and are kinematically connected to the punch bodies.
摘要:
A press (3) for a cupping system (1), including: a press bed (15); a cupping die set (5) mounted on the press bed (15); first and second pressing members (11,13) for actuating the cupping die set (5); and a drive system (9) for controlling movement of the first and second pressing members (11,13), wherein said drive system (9) includes a flywheel assembly (21) and a crankshaft (25), the crankshaft (25) is located below the press bed (15) when the press (3) is in its normal operating orientation, and the crankshaft (25) is coupled directly to the flywheel assembly (21). A cupping system (1) and a method for manufacturing cups, are also disclosed.
摘要:
The invention relates to a method for producing compressed wood fuel pellets from wooden waste material such as sawdust or shavings. According to the method, a press (1) is placed at a first mill site (4) for wood where a first quantity of wooden waste material is present. The press (1) is operated at the first mill site (4) until the first quantity has been transformed into pellets. Thereafter, the press is moved to a second mill site (5) for wood where a second quantity of wooden waste material is present. Thereafter, the pellets press (1) is operated at the second mill site (5) to transform the second quantity into pellets. The invention also relates to a press (1) for carrying out the method.
摘要:
A shaft decoupling system (200) includes an inner shaft (202) couplable to an actuator (102), an outer shaft (204) aligned coaxially with the inner shaft, and a bearing release collar (206). The bearing release collar is biased toward a first position by a biasing mechanism and configured to be moved to a second position against a biasing force of the biasing mechanism (222, 322) in response to the bearing release collar contacting a collar strike plate (118) as the actuator moves the shaft decoupling system. When the bearing release collar is in the first position, a bearing (220, 320) is held by the bearing release collar to prevent respective movement of the inner shaft and the outer shaft. When the bearing release collar is in the second position, the bearing release collar permits the bearing to retract such that the inner shaft is permitted to move coaxially with respect to the outer shaft.
摘要:
Die Erfindung betrifft ein Verfahren zur Steuerung einer Presse (10). Die Presse (10) weist einen elektrischen Antriebsmotor (21) und ein Pressengetriebe (22) mit variabler Getriebeübersetzung (Ü) auf. Ein Stößel (12) der Presse (10) ist in Hubrichtung (R) bewegbar gelagert und über das Pressengetriebe (22) mit dem elektrischen Antriebsmotor (21) verbunden. Die Getriebeübersetzung (Ü) nimmt bei der Bewegung des Stößels von einem oberen Umkehrpunkt (OT) zu einem unteren Umkehrpunkt (UT) stetig zu und steigt stark an. Um ein Überschreiten einer vorgegebenen maximalen Presskraft (Fmax) der Presse (10) zu vermeiden, wird ein positionsabhängiges Maximaldrehmoment (Mmax) für den elektrischen Antriebsmotor (21) vorgegeben. Die Steuereinrichtung vergleicht das jeweils anliegende Antriebsmoment (M) mit dem positionsabhängigen Maximaldrehmoment (Mmax). Sobald das Antriebsmoment (M) das positionsabhängige Maximaldrehmoment (Mmax) überschreitet, wird daraus die Gefahr erkannt, dass die vom Stößel (12) aufgebrachte Kraft die maximale Presskraft (Fmax) bei einer fortgesetzten Umformbewegung überschreiten wird. Die Steuereinrichtung (12) reduziert dann das Antriebsmoment (M) um eine Beschädigung der Presse (10) zu vermeiden.
摘要:
A pressing machine, particularly a fast operating pressing machine equipped with a pressing head forced into longitudinal jigging motion in a working range over a bench (46) by an eccenter disk (8), having an eccentric shaft, through a crank arm (9). The pressing head (12) has a lower pressing block (13) removable from the work range above the bench (46) and an upper pressing block (14) arranged slideably in relation to the lower and forced into jigging motion by the crank arm (9) and there is a connecting element (15) joining the lower pressing block (13) to the upper pressing block (14). The connection between the upper and lower pressing block (14, 13) can be broken, thereby motion of the lower pressing block (13) can be stopped while the eccentric disk (8), its shaft and any flywheel or similar inertial mass connected with the upper pressing block (14) continues to rotate. Preferably, said lower pressing block (13) has a suspension point (17), and a stop (26) impacting onto the upper dead point position of the jigging motion of the upper pressing block (14), as well as a suspending element (18) connected to the suspension point (17), cast through reels (19 and 20) and strained by a counterweight (21).