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Design method of rotary printing device for paper products

A technology of printing device and design method, applied in printing, printing machine, rotary printing machine and other directions, can solve the problems of product appearance being difficult to meet quality requirements, overprinting deviation, etc., to save time and improve production efficiency.

Active Publication Date: 2017-04-26
CHANGDE JINPENG PRINTING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the above process, there are often overprint deviations in different processes between offline equipment and in the same equipment due to the expansion and deformation of paper under different equipment and tension, which makes the appearance of the produced products difficult to meet the quality requirements.

Method used

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  • Design method of rotary printing device for paper products

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Effect test

Embodiment 1

[0026] A design method for a rotary printing device for paper products. The rotary printing device for paper products includes a web gravure printing machine, a web positioning holographic hot stamping machine, and web embossing, indentation, and die-cutting. The bit-linked self-positioning paper splicing and roll changing die-cutting machine specifically includes the following steps:

[0027] (1) Determine the number of circumferential typesetting of the web gravure printing machine according to the length of a single piece of printing paper, wherein, the first theoretical perimeter=the length of a single piece×the circumferential typesetting number of the web gravure printing machine, and then Determine the circumference range of the printing plate of the web gravure printing machine according to the theoretical circumference;

[0028] The tension and air pressure setting method of the web gravure printing machine is as follows: according to the width L of the printing paper, ...

Embodiment 2

[0044] Purchase and manufacture a web gravure printing machine, a web positioning holographic hot stamping machine, and a web embossing, indentation, and die-cutting three-station linkage self-positioning paper splicing and roll changing die-cutting machine; Through the intensive process, a new production technology of round pressing is formed. Design the setting of process parameters of the whole line and the requirements for equipment production.

[0045] According to the process standards and size requirements of a certain product (taking the circumferential direction as 98mm as an example), determine the following process standards to determine the equipment specification configuration:

[0046] ① Gravure printing process: Considering the operation suitability of gravure printing, select 6 blocks × 98 = 588mm (corresponding to the first theoretical circumference), and according to this requirement, determine the equipment specifications (the printing plate circumference ra...

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Abstract

The invention discloses a design method of a rotary printing device for paper products. According to the design method, whole line process parameters are groped and selected; and single-procedure normal operation (for example, printing registration) is mainly ensured in tension setting of various procedures, and the processing condition (for example, the amount of telescopic deformation of paper in the case of tension) penetrating through the whole line, temperature settings of various procedures, base number incremental quantities of circumferences of all colors of printing plates, theoretical base numbers of a pressure relief, an impression plate and a die-cutting plate and actual increment and decrement are comprehensively considered. Through the method, overprinting deviations of various procedures caused by equipment precision and paper expansion deformation in a technology implementation scheme are thoroughly overcome; and the appearances of produced products meet the quality requirements. According to the design method, design of the whole line process parameters is achieved, the problem of product registration between offline equipment of different procedures in a reel-to-reel production technology process and between different procedures in the same equipment is solved; and the ratio of the products of which the registration deviations are smaller than 0.15mm is improved to over 98% (normal distribution).

Description

technical field [0001] The invention relates to the technical field of paper product printing, in particular to a design method of a paper product rotary press printing device. The design method can reduce waste products due to inaccurate registration and improve the qualified rate of paper products. Background technique [0002] In order to solve the problems that flat sheet paper is easily affected by environmental temperature and humidity in the multi-process processing process, resulting in more registration deviation waste products caused by paper expansion and deformation, and air bubbles in flat-press flat holographic hot stamping, etc., after scientific analysis and demonstration, a new method is proposed. A round-pressing processing method for web products, namely: seamless web printing → off-line web round-pressing holographic hot stamping → die-cutting (web round-pressing, embossing, indentation, die-cutting three The station is integrated and linked), adopting th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/50B41F19/06
CPCB41F19/062G06F30/17
Inventor 徐军蔡华标邓强陈爱华欧立国
Owner CHANGDE JINPENG PRINTING