Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Multicolor printing machine

A technology of printing presses and printing units, applied in the directions of printing, printing devices, etc., can solve the problems of inaccurate overprinting and inability to ensure stable substrate tension.

Inactive Publication Date: 2010-10-20
曹杨
View PDF4 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These guide rollers in the printing unit are passive rollers without power, which are transported by the substrate when it moves. The work of the guide rollers does not affect the stress change or length change of the substrate, and the tension of the substrate in the printing section cannot be guaranteed. , therefore, it will cause the substrate to stretch and change between each printing unit on the printing section, resulting in inaccurate overprinting

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
  • Multicolor printing machine
  • Multicolor printing machine
  • Multicolor printing machine

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Figure 4 The multi-color printing machine shown is mainly composed of the unwinding part A, the unwinding traction part B, the printing part C, the drying part D, the winding traction part E and the winding part F framed by double dotted lines. . Wherein the unwinding part A, the unwinding traction part B, the drying part D, the winding traction part E and the winding part F are mostly related parts of the existing multi-color printing machine.

[0020] Figure 5 The printing part C shown has 8 printing units, that is, printing units 2, 3, 4, 5, 7, 8, 9, and 10. The substrate is web 1, and on the traveling path of web 1, in A vacuum suction roller 12 is housed before the first printing unit 2, a vacuum suction roller 11 is housed after the last printing unit 10, and a vacuum suction roller 11 is also housed between the fourth printing unit 5 and the fifth printing unit 6. Vacuum adsorption rollers 6 , the structural principles and installation methods of these vacuu...

Embodiment 2

[0026] The multi-color printing machine of this embodiment is compared with the multi-color printing machine of Embodiment 1, except that the synchronous roller before the first printing unit is replaced by a pair of common rollers that sandwich the two sides of the substrate Figure 5 Except for the vacuum suction roller 12, other parts are the same as the multi-color printing machine of embodiment 1. This pair of ordinary rollers is also connected with the vacuum adsorption roller through pulleys and transmission belts. During operation, the linear speed of the roller surface is the same as that of other vacuum adsorption rollers.

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

The invention discloses a multicolor printing machine. In the invention, vacuum adsorption rolls of printing stocks are at least arranged in front of a first printing unit and behind a last printing unit, a plurality of axially arranged air intake ducts are arranged below the roll surfaces of the vacuum adsorption rolls, a plurality of suction holes which are communicated with the air intake ducts arranged below the roll surfaces are distributed on the roll surfaces, an exhaust hood communicated with a vacuum aspiration machine and used for butting the air intake duct outlets which rotate by a sector part of a wrap angle of the printing stock is arranged on the end surface of the vacuum adsorption rolls, exactly opposite to the sector part, and drive wheels arranged on shafts of the vacuum adsorption rolls are connected with each other through a synchronous belt. Compared with the prior art, the printing machine can solve the problem that the tension applied to the printing stock at the printing phase is acted by variation of printing parameters, and the printing stock stretches, thereby causing misregister.

Description

technical field [0001] The invention relates to the technical field of printing machinery, in particular to a printing machine with a plurality of printing units and a material in the form of a roll as the printing raw material. Background technique [0002] A printing machine with multiple printing units requires precise alignment between the substrate and the printing plate roller during color separation overprinting to achieve the printing effect required by the design. If there are many such color separation overprinting units, multiple printing units The final overprinting has very high requirements on the accurate positioning of the substrate. When the roll-type printing material enters the printing process of the printing machine, the printing material has to undergo multi-stage tension control such as unwinding traction, rewinding traction, and winding. The tension of each section will change, and this tension change will directly cause the substrate. The change of ...

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
IPC IPC(8): B41J15/04B41M1/14
Inventor 曹杨
Owner 曹杨
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com