Apparatus for turning plane printed matter in half turning paper treating machine

A paper and double-sided printing technology, applied in thin material processing, general parts of printing machinery, printing, etc., can solve the problems of high production and manufacturing costs, extended printing machine length, occupied installation area, etc.

Inactive Publication Date: 2002-08-28
HEIDELBERGER DRUCKMASCHINEN AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This is accompanied by higher production costs, greater dynamic problems due to the higher moving masses and an increase in the overall length of the printing press, which occupies an already tight installation area in the printing plant

Method used

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  • Apparatus for turning plane printed matter in half turning paper treating machine
  • Apparatus for turning plane printed matter in half turning paper treating machine
  • Apparatus for turning plane printed matter in half turning paper treating machine

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0040] from figure 1 The cylinder configuration of the inverting printing unit according to the invention with semi-deflecting paper cylinders is shown in detail in the schematic diagram.

[0041] figure 1 A first paper guide cylinder 2 is shown, on whose outer surface 3 the paper 1 rests. The trailing edge of the sheet 1 is designated with 1.1 and the leading edge of the sheet with reference numeral 1.2. The first paper guide cylinder rotates around the axis of rotation 4, where the back 7 of the paper 1 abuts against the outer surface 3 of the first paper guide cylinder 2, which may be the front side 6 already printed in four colors, assigned to the turning paper roll 14. The front edge 1.2 of the paper 1 is gripped by the gripper system 5 assigned to the outer surface 3 of the first paper guide cylinder 2. from figure 1 In the schematic diagram, the various states of the movement of the front edge 1.2 of the paper when the rear edge 1.1 of the paper 1 to be turned over...

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PUM

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Abstract

In a sheet-processing rotary printing machine operatable in recto printing and recto / verso printing modes, there is provided a device for reversing sheets, which includes a transfer drum bounded by two sheet-guiding cylinders, a reversing / storage drum and an additional transport element assigned to the transfer drum, the transfer drum being drivable in opposite directions of rotation in the recto printing and the recto / verso printing modes, and gripper systems actable in both directions of rotation of the transfer drum, the gripper systems being accommodated on an imaginary jacket surface of the transfer drum; a printing unit including the components of the device; and the printing machine being a multicolor printing machine.

Description

technical field [0001] This invention relates to apparatus for reversing flat prints in semi-rotary paper processing machines, such as rotary printing presses. Background technique [0002] DE3710257A1 relates to a rotary printing machine producing single-sided multicolor printing or perfecting printing. In the running direction of the paper-like material, a transfer cylinder is installed between the paper cylinders of the two printing units. Here, according to this solution proposal for obtaining a structural form that is not affected by the specifications, it is connected to the first printing. The transfer gap between the transfer cylinder and the second printing unit impression cylinder is increased compared to the normal gap width of the impression cylinder of the printing unit, and the clear intermediate space can be moved from the delivery cylinder in order to catch the leading or trailing edge of the paper. The gripper system that moves out in a circle overlaps. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B41F21/10B65H5/12B65H5/14
CPCB41F21/106Y10S271/902
Inventor 京特·斯特凡
Owner HEIDELBERGER DRUCKMASCHINEN AG
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