摘要:
A device and a method for raising and positioning an object, for example a sheet from a sheet stack, uses a whirlwind to generate a negative pressure for generating a retaining force and uses interference air for releasing the retaining force.
摘要:
A device for stacking veneer sheets (1, 2) while substantially horizontal, the device including a supporting element, that escapes in the advancement direction at a release area from beneath the veneer (2) to be stacked, the supporting element being moved by a conveyor (7), and a controlled element for stopping the veneer to be stacked in a corrected position at a release point. An element for stopping the veneer to be stacked is a gripper (10) that grips the trailing edge of the veneer (2) from below and moves up and down, in the advancement direction of the veneer, and transversely to it, the gripper having a gripping point to the veneer at the trailing edge in the veneer's advancement direction, extended at a distance in the advancement direction from the gripper's transverse travel path.
摘要:
A lifting sucker for separating sheets from a sheet stack includes a suction cup formed as a double-walled bellows sucker having at least one suction chamber that can be acted on pneumatically to contract the bellows sucker. A punch and a sheet-fed rotary printing press having the lifting sucker are also provided.
摘要:
A receiving, holding and/or handling device for two-dimensional objects, with at least two controllable suction grippers. The suction grippers are arranged and connected to free ends of movable cantilever arms, which are elastically deformable at least in some sections. The cantilever arm are mounted and supported on a bridge. The cantilever arms each include at least one lower pull and one upper pull which meet at the free end of the cantilever arm and are connected there. An actuating device is assigned to the upper pull. The actuating device generates a pulling force with at least one horizontal direction component which is approximately parallel to the longitudinal extension direction of the cantilever arm. A method is also disclosed.
摘要:
A suction cup for a printer includes a cup portion that includes a contact surface adapted to contact print media within the printer, the contact surface being formed by a low surface energy material. In some embodiments, the contact surface is rough.
摘要:
Tool for transporting and shaping flexible laminar parts, which comprises a chamber 1 having a flexible and impermeable wall, with a bottom 3 provided with though holes 6. The chamber 1 houses a flexible and impermeable plate, a rigid plate 4, which reproduces the final three-dimensional shape that the flexible laminar part 5 has to adopt, and a suction tube 8.
摘要:
Tool for transporting and shaping flexible laminar parts, which comprises a chamber 1 having a flexible and impermeable wall, with a bottom 3 provided with though holes 6. The chamber 1 houses a flexible and impermeable plate, a rigid plate 4, which reproduces the final three-dimensional shape that the flexible laminar part 5 has to adopt, and a suction tube 8.
摘要:
A suction cup includes a body with a central axis, a first end having an opening, and a second end adapted to be connected to a vacuum source, thereby drawing a vacuum through the opening. A lip is provided on the body, which defines a periphery around the opening. An obstruction element with an exterior surface extends across at last part of the opening. The obstruction element defines a plurality of holes therethrough and presents an exterior surface that is substantially flush with the lip. The obstruction element discourages distortion of a fabric drawn to the suction cup, when the vacuum is applied by the vacuum source, to a degree that exceeds a predetermined, acceptable threshold.
摘要:
A device for stacking veneer sheets (1, 2) while substantially horizontal, the device including a supporting element, that escapes in the advancement direction at a release area from beneath the veneer (2) to be stacked, the supporting element being moved by a conveyor (7), and a controlled element for stopping the veneer to be stacked in a corrected position at a release point. An element for stopping the veneer to be stacked is a gripper (10) that grips the trailing edge of the veneer (2) from below and moves up and down, in the advancement direction of the veneer, and transversely to it, the gripper having a gripping point to the veneer at the trailing edge in the veneer's advancement direction, extended at a distance in the advancement direction from the gripper's transverse travel path.
摘要:
A pick-up device picking up stacked sheet-shaped workpieces from the top, the device includes a nozzle mechanism that includes a pick-up nozzle pulling up a first workpiece from the top of the stacked workpieces by air blowing, and a holding mechanism that holds the first workpiece from the top. The pick-up nozzle includes a ventilation groove provided on a bottom surface opposite to an upper surface of the first workpiece from the top and passing through to an air blowing side end part of the bottom surface, and a nozzle port blowing air toward the air blowing side end part of the bottom surface along the inside of the ventilation groove, and the air blowing side end part of a groove inner bottom surface of the ventilation groove is formed in a shape directed in a direction of being separated from the workpiece.