Abstract:
The present invention. is generally related to an apparatus having cutter elements (20) for destroying- articles such as paper sheets and a mechanism (23) for advancing at least a top sheet from a stack of paper in a tray (14) into the cutter elements for shredding. In one embodiment, the apparatus uses a rotatable' feed roller (24) to feed paper atop the stack to the cutter elements. The feed roller moves in an alternating manner between a lowered and raised position to engage and disengage the stack when advancing the paper therethrough. Alternatively, a rotatable cam (72) may be used. In an embodiment, the apparatus uses a rotatable drum (40) or rotatable belt (82) with an internal vacuum to lift paper from the stack and feed into the shredder mechanism.
Abstract:
Die Erfindung betrifft einen Robotergreifer (11) zum Handhaben von biegeschlaffen, flächigen Materialzuschnitten (20), aufweisend einen Greifergrundkörper (12), der einen Anschlussflansch (13) aufweist, der zur Befestigung des Robotergreifers (11) an einem Werkzeugflansch (8) eines Roboterarms (2) ausgebildet ist, und aufweisend ein Basisglied (14), welches mittels eines ersten Drehgelenks (15.1), das von einem ersten Antriebsmotor (A1) des Robotergreifers (11) automatisch verstellbar ist, um eine erste Drehachse (D1) drehbar am Greifergrundkörper (12) gelagert ist, ein Zwischenglied (18), welches mittels eines zweiten Drehgelenks (15.2), das von einem zweiten Antriebsmotor (A2) des Robotergreifers (11) automatisch verstellbar ist, um eine zweite Drehachse (D2), die parallel zur ersten Drehachse (D1) ausgerichtet ist, am Basisglied (14) drehbar gelagert ist, und ein Endglied (17), das mittels eines dritten Drehgelenks (15.3), das von einem dritten Antriebsmotor (A3) des Robotergreifers (11) automatisch verstellbar ist, um eine dritte Drehachse (D3), die parallel sowohl zur ersten Drehachse (D1) als auch zur zweiten Drehachse (D2) ausgerichtet ist, an dem Zwischenglied (18) drehbar gelagert ist, des Weiteren aufweisend eine am Endglied (17) befestigte Materialaufnahmerolle (16.1) und eine am Greifergrundkörper (12) befestigte Halteleiste (16.2), die sich mit ihrer Längserstreckung parallel zur Materialaufnahmerolle (16.1) erstreckt.
Abstract:
A method and apparatus for feeding envelopes in an envelope insertion machine, wherein a rotatable pneumatic feeding head (40) is used to pick up an envelope from an envelope stack by a negative air pressure. The pneumatic feeding head is also used to move the envelope to a pair of take away rollers (26) so that the envelope picked up by the feeding head can be moved further away from the envelope stack. It is preferred that the feeding head includes an outer cylinder (50) having a row of vacuum ports (42) and an inner cylinder (60) having a plurality of apertures (62) for air passage operatively connected to a vacuum pump. The inner cylinder (60) is independently rotatable relative to the outer cylinder (50) so that the negative air pressure is provided to the vacuum ports (42) when the apertures (62) of the inner cylinder (60) are aligned with the vacuum ports (42), and the negative air pressure is turned off from the vacuum ports (42) when the apertures (62) and the vacuum ports (42) are out of alignment.
Abstract:
The invention relates to a vacuum holding device comprising a cylinder (3) with an outer shell (7, 9, 14, 15) with air channels (6), which control the vacuum by means of a valve (11, 12, 13), so that passage and holding force are established only when an object (1) is in contact with the cylinder (3). This reduces the consumption of vacuum.
Abstract:
A method and apparatus for handling thin films, for example, for handling and assembling membranes in fuel cell electrodes. The apparatus includes a translatable vacuum table for mounting the thin film, a perforated drum having a source of vacuum for removing the thin film from the vacuum table, and a transfer assembly having a perforated surface and a source of vacuum for transferring the thin film from the perforated drum to a target location. When the thin films are provided in containers, the apparatus may also include means for opening the containers to access the thin film within. Removal of the thin film from the transfer assembly may be aided by a thin film release device, for example, a plurality of moveable wires. The apparatus may be automated, for example, the apparatus may include automated controllers and robotic arms to facilitate the handling of thin film materials.