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Intermittent printing apparatus

A technology for printing presses and printing units, applied in printing presses, rotary printing presses, printing and other directions, can solve the problems of damage to the printed substrate, printing dirt, easy deviation and relaxation of the printed substrate

Active Publication Date: 2020-09-22
MIYAKOSHI PRINTING MACHINERY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] Therefore, when the printed substrate travels in the opposite direction, deviation and slack are likely to occur on the printed substrate.
If there is deviation or looseness on the printed substrate, damage to the printed substrate, printing dirt, etc. will occur due to the contact between the printed substrate and the blanket cylinder or press cylinder

Method used

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Examples

Experimental program
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Embodiment Construction

[0080] Preferred Mode for Carrying Out the Invention

[0081] based on figure 1 The overall basic structure of the intermittent printing machine of the present invention will be described. figure 1 It is the whole front view of the intermittent printing machine which concerns on embodiment of this invention.

[0082] The intermittent printing machine 100 has a paper feeder 1A that supplies the printed substrate W; a paper feeder 1B that feeds the printed base W that is supplied from the paper feeder 1A; The printing section 2 on the substrate W; the paper discharge section 3A that discharges the printed substrate W on which the image is printed (hereinafter simply referred to as the printed substrate W); and performs post-processing on the printed substrate W The post-processing section 3B.

[0083] The substrate W to be printed used in the batch printing machine 100 of this embodiment is a flexible film with a high surface smoothness. For example, use raw materials for fl...

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PUM

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Abstract

Provided is an intermittent printing apparatus capable of preventing a slip and a deviation in printing registration from being caused when a base material to be printed is travelled. A step-back roller 6 on a sheet introducing side and a step-back roller 10 on a sheet discharging side are synchronously and rotationally driven forwardly to make a base material to be printed W travel forwardly, sothat image printing is effected on the base material to be printed by an impression cylinder 9 and a blanket cylinder 8, and the step-back roller 6 on the sheet introducing side and the step-back roller 10 on the sheet discharging side are synchronously and rotationally driven backwardly to make the base material to be printed W travel backwardly. The base material to be printed W is wound arounda peripheral surface of the impression cylinder 9 at a prescribed winding angle, the base material to be printed W is pressed against the peripheral surface of the impression cylinder 9 by a nip roller 42 for impression cylinder, and the impression cylinder 9 is rotationally driven forwardly and backwardly in synchronization with the step-back roller 6 on the sheet introducing side and the step-back roller 10 on the sheet discharging side.

Description

technical field [0001] This invention relates to intermittent printing machines. Background technique [0002] The intermittent printing machine repeatedly prints the image while moving the printed substrate in the forward direction. After printing, the printed substrate travels in the reverse direction without printing the image, and then travels in the forward direction again for printing, and the image is moved up and down. The gap in the direction becomes smaller and printed on the printed substrate. [0003] For example, an intermittent printing machine is disclosed in Japanese Patent Application Laid-Open No. 2-75561. [0004] In this intermittent printing machine, a plurality of printing units are arranged between two feed rollers driven by normal rotation and reverse rotation, and the printing units have a plate cylinder, a blanket cylinder and a press cylinder. The peripheral surface of the blanket cylinder has a large-diameter portion that is in pressure contact ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B41F33/06B41F13/04
CPCB41F33/06B41F13/04B41F23/0406B41F23/0483B41F13/025B41F13/36B41F21/00B41F23/044B41F23/0476B41M1/30
Inventor 藤原铃司小田岛和见油谷努鱼住忍
Owner MIYAKOSHI PRINTING MACHINERY
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