Unlock instant, AI-driven research and patent intelligence for your innovation.

Method and calibration tool for calibrating a rotary printing press

A technology for printing presses and tools, applied in the field of calibrating rotary printing presses, can solve problems such as low reproducibility, and achieve the effect of reducing human intervention

Active Publication Date: 2011-02-09
BOBST BIELEFELD
View PDF11 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] This procedure requires a great deal of skill and experience, yet has only low reproducibility because it requires human judgment to clamp the gauge with the proper pressure

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Method and calibration tool for calibrating a rotary printing press
  • Method and calibration tool for calibrating a rotary printing press
  • Method and calibration tool for calibrating a rotary printing press

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0023] As an example of a printing machine to which the present invention can be applied, figure 1 A known flexographic printing press is shown having a central impression cylinder (CI) 12 and ten coloring stations A-J arranged around the periphery of the CI. Each coloring station includes a frame 14 supporting an anilox roll 16 and a printing cylinder 18 in a rotatable and adjustable manner. Anilox roll 16 is inked by means of an ink fountain and / or doctor blade chamber (not shown) and can be adjusted against printing cylinder 18, as is known in the art, The ink is thereby transferred to the peripheral surface of the printing cylinder 18 bearing the printing pattern.

[0024] A web 20 of print substrates is positioned around the periphery of the CI 12, thus moving past each coloring station A-J as the CI rotates.

[0025] exist figure 1 Coloring stations A-E are shown in working condition. In this state, the anilox roller 16 and the printing cylinder 18 are driven to rota...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

A method for calibrating a rotary printing press, wherein a bearing structure for a printing cylinder is adjusted relative to another component (12; 16) of the printing press, and positions of the bearing structure are measured, comprising by the steps of - mounting a calibration tool (90) on a mandrel (88) that is supported in the bearing structure, said calibration tool having at least one contact sensitive switch (92), - moving the bearing structure until the switch (92) contacts said other component (12; 16), and - upon detection of a signal from the switch (92), storing the measured position of the bearing structure as a reference position.

Description

technical field [0001] The invention relates to a method for calibrating a rotary printing press, in which a bearing arrangement for a printing cylinder is adjusted relative to another component of the printing press and the position of the bearing arrangement is measured. Background technique [0002] In rotary printing presses such as flexographic printing presses, the height must be adjusted relative to other machine components such as the central impression cylinder (CI), anilox rollers, side frames of the machine (for adjusting lateral registers), etc. Accurately adjust the position of the printing cylinder. In a typical flexographic printing press, a number of coloring stations are arranged around the CI, and each coloring station includes a bearing structure for the printing cylinder and another bearing structure for the embossing roller. Each bearing structure includes two bearing housings, which respectively support the opposite ends of the printing cylinder and th...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): B41F13/30B41F13/14
CPCB41F13/14B41P2233/13B41P2200/12B41F13/30
Inventor 戈登·怀特洛沃尔夫冈·布鲁斯德林斯
Owner BOBST BIELEFELD