摘要:
The invention relates to a method and a device for aligning printing plates on printing cylinders to provide an image or indicia on metallic cylindrical containers.
摘要:
The present invention provides a roller coating method for production of patterned insulation board used for building exterior wall. In this method, a metal veneer and a substrate are produced firstly, and a pattern is printed on the metal veneer, and then an insulation layer is added between the metal veneer and the substrate to produce the patterned insulation board which is finally arranged onto the wall body. In this way, the defect that an decorative layer has to be arranged after installation of an insulation board is avoided (it is inconvenient to directly print a pattern on the insulation board arranged on the wall body by making use of the roller coating production line, so the existing insulation board is generally less decorative and unaesthetic), and the integration of decoration and insulation is realized.
摘要:
The present invention relates to a printing apparatus and method for measuring and compensating for a synchronization error and the present invention has been made in an effort to provide a printing apparatus and method for measuring and compensating for a synchronization error, which may compensate for the synchronization error between a roll and a substrate support part occurring due to a deformation, and the like which is caused by a printing pressure of the roll at the time of electronic printing.
摘要:
A method for axis correction in a processing machine, in particular a shaftless printing machine, has at least one axis for processing and/or transporting a material, at least one detection device for detecting a processing parameter and at least one controller device for calculating a controller output variable for axis correction of the at least one axis using the detected processing parameter. The method is implemented iteratively, with the result that feedforward control output values for the feedforward control of the axis correction are determined during an (n+1)-th change in rotation speed of the at least one axis using observation of the controller output variable and/or the processing parameter during an n-th change in rotation speed of the at least one axis.
摘要:
Provided is a corrugated paperboard sheet printing device which includes a conveyance device for conveying a corrugated paperboard sheet fed out from a sheet feeding device, while suckingly holding the sheet; a plurality of printing units for printing the sheet through a series of printing processes; an information generator for generating basis weight information indicative of a basis weight of a corrugated paperboard sheet in each order; a storage device for storing therein a plurality of correction information for correcting a plurality of printing timings at each of which a respective one of the plurality of printing units performs the printing process on the sheet, in association with the basis weight information; and a controller for, based on the correction information, correcting the printing timing in each of the printing units, and causing the printing unit to operate according to the corrected printing timing.
摘要:
A roll-to-roll printing system includes driven rolls to apply a feeding force to a flexible substrate so that the flexible substrate is fed from an unwinder to a rewinder, nip rolls respectively disposed above two opposite end portions of each of the driven rolls to pressurize two opposite side portions of the flexible substrate, nip roll driving motors connected to the nip rolls to rotate the nip rolls, and a control unit to receive information regarding change of torque values of the nip roll driving motors and control tension of the flexible substrate based on the information.
摘要:
A method for controlling the web tension of a product web in a web processing machine includes reducing the effects of the web tension control on the web stretch before an impending change in at least one parameter influencing the web tension.
摘要:
A method for setting position register and color register in a sheet-fed printing press having a control computer, which provides for one setting operation, in which both position and color register are set by the control computer. For the purposes of the setting, both the register setting elements in the printing units and the setting elements in the feeder are used. The invention is distinguished by the fact that before carrying out the setting operations, during the calculation of the travels for the register setting elements and setting elements in the feeder, an optimization comprising the travels of the register setting elements and the setting elements in the feeder is carried out in the computer.
摘要:
A printing press for processing a web of printing material, in particular for producing labels or packaging, includes a plurality of printing units which are convertible between different printing processes. Each of the convertible printing units includes at least one receiving element to releasably connect and receive a printing unit subassembly or printing unit component in such a way that the printing process can be implemented on the web of printing material passing through the printing unit in a printing nip formed between a cylinder and an impression cylinder. In order to provide diagonal register adjustment, the axis of rotation of the cylinder is tiltable relative to the axis of rotation of the impression cylinder by a linear movement of the at least one receiving element perpendicular to a direction of engagement between the cylinder and the impression cylinder.
摘要:
To control the cutting register of a web in a web-fed rotary press and to control the tension in a web section, in a manner decoupled from each another, at least one partial cutting register error is controlled at least one web tension is controlled. The press has controlled driven clamping points 0 to n, wherein j+q manipulated variables are used to influence j partial cutting register errors and q web tensions. Circumferential speeds and/or angular positions of clamping points are used as manipulated variables and the partial register error and the web tension in each case are located in the same or in different web sections.