Lateral register correcting device, printing press, and lateral register correcting method
AssigneeMitsubishi Heavy Industries Printing & Packaging Machinery, Ltd.
InventorsYoshio Nitta, Kazunori Ikeda
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Abstract
A lateral register correcting device is capable of correcting register movement for a web by printing units. A register mark is printed on front and back sides of the web. A register correction control unit automatically controls a register correcting mechanism in real time based on a register correction amount derived by a pair of register cameras for detecting the register mark. A fan out correction control unit automatically controls a roller pressing mechanism in real time based on a fan out correction amount derived by a pair of fan out cameras for detecting the register mark.
Claims18
A lateral register correcting device comprising:
- a register correcting unit capable of correcting register movement for the web by each of the printing units, when a plurality of printing units print on a traveling web;
- and
- a fan out correcting unit capable of correcting a width of the web stretched in a width direction, wherein
- a register mark for performing correction by the register correcting unit and the fan out correcting unit is printed on the web by each of the printing units,
- the lateral register correcting device comprising:
- a register detection and estimation unit capable of estimating and detecting a register correction amount by the register correcting unit based on the register mark;
- a register correction control unit capable of automatically controlling the register correcting unit in real time based on the register correction amount derived by the register detection and estimation unit;
- a fan out detection and estimation unit capable of estimating and detecting a fan out correction amount by the fan out correcting unit based on the register mark;
- and
- a fan out correction control unit capable of automatically controlling the fan out correcting unit in real time based on the fan out correction amount derived by the fan out detection and estimation unit.
Dependencies are inferred from the claim text.