摘要:
A device for controlling electric drives in machinery includes an electronic control unit for calculating in advance the electric power required by the at least one electric drive as a function of motion profiles of the electric drive. A printing material processing machine having the drive, is also provided.
摘要:
The present invention deals with a methodology of incorporating carbon nanotubes (CNTs) into an epoxy matrix and thereby producing epoxy-based CNT nanocomposites. Both the pristine and ozonized CNTs are almost homogeneously dispersed into the resin by this approach. Compared with the pristine CNTs (p-MWCNTs), the ozonized ones (f-MWCNTs) offer considerable improvements on mechanical properties within the epoxy resin.
摘要:
The invention relates to semicrystalline polyurethane (PU) compositions which have been filled with carbon nanotubes (CNTs) and have improved electrical properties, and which are obtainable on the basis of water-based polyurethane-CNT mixtures. The invention further relates to a process for producing the polyurethane compositions, in which water-based polyurethane latices are mixed with carbon nanotubes dispersed in water. The invention further relates to films produced by pressurized injection moulding processes or processing of casting solutions.
摘要:
An escalator handrail drive arrangement includes a drive belt (26) mounted within a drive housing (35). Pressure rollers (30) are mounted in pairs and pivotally attached to the drive housing. The pressure rollers bias a handrail (22) against the drive belt. The pressure roller arrangements are mounted at each axial end. A spring (44) biases the pressure roller arrangements against the handrail, with the spring being centered along the axial length of the pressure rollers. This spring is preferably mounted within the drive housing such that no additional space is required outwardly of the drive and roller arrangement to accommodate the spring.
摘要:
A winding device for winding a continuously arriving material web onto a reel, including a contact roller by which the material web can be guided and transferred to the reel in contact with the surface of the contact roller. The contact roller has a support tube and fibers, which protrude from the outside of the support tube and form the surface of the contact roller. The fibers extend essentially perpendicular to a longitudinal axis of the contact roller so that first ends of the fibers are affixed to the support tube and their other free ends define a surface of the contact roller.
摘要:
A printing press includes at least one printing unit having a cylinder and a cover covering the cylinder. Actuators are associated with the cylinder for changing a geometry of the cover in axial and/or circumferential direction of the cylinder. Positioning electronics are connected to the actuators and a printing press machine control system is connected to the positioning electronics. An image inspection device is connected to the printing press machine control system at least for geometric measurement of printed printing materials. A printing press computer processes measured results from the image inspection device for carrying out a desired/actual value comparison and for driving the actuators to minimize determined deviations, in the event that deviations are determined.
摘要:
A module for a machine for processing sheet printing materials, has interfaces for control communication, a memory unit which can be read and written and which contains the properties of the module, and also a communications device which is used for communication with further modules and/or a higher-order control system of the machine. The communications device is operatively connected to the memory unit.
摘要:
A device for controlling electric drives in machinery includes an electronic control unit for calculating in advance the electric power required by the at least one electric drive as a function of motion profiles of the electric drive. A printing material processing machine having the drive, is also provided.
摘要:
An apparatus and a method for the selection of printing materials in a machine processing printing materials has at least one control computer. The operating data of the machine processing the printing materials is logged by the computer and a tolerance limit corresponding to the operating data registered is stored in the computer. When the tolerance limit is exceeded during a time interval, the printing materials produced in this time interval are registered in the control computer.
摘要:
A method and a device for determining the state of a vehicle battery in which the battery voltage is measured and information regarding the state of the vehicle battery is derived from the measured battery voltage by means of an integration procedure. A variable weighting factor is taken into account in the integration procedure.