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Plate cylinder of porous printing apparatus and printing apparatus

A printing plate cylinder and stencil printing technology, which is applied to the general parts of printing machinery, printing, printing machines, etc., can solve problems such as poor printing, achieve good printing action, and prevent wrinkles

Inactive Publication Date: 2009-03-18
RISO KAGAKU CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

While the printing process continues, the creases that are generated gradually grow from the non-plate-making area that is the rear end to the plate-making area. If printing is performed in this state, printing failures will occur.

Method used

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  • Plate cylinder of porous printing apparatus and printing apparatus
  • Plate cylinder of porous printing apparatus and printing apparatus
  • Plate cylinder of porous printing apparatus and printing apparatus

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0029] Fig. 1 shows a schematic front view of main parts of a stencil printing apparatus according to an embodiment of the present invention. In this figure, the stencil printing device 1 has a printing unit 2, a plate making unit 3, a paper feeding unit 4, etc.

[0030] The printing unit 2 has: a printing plate cylinder 5, which is located in the approximate center of the main body of the apparatus (not shown) and driven to rotate clockwise in FIG. 1 by an unillustrated printing plate cylinder driving mechanism; 6. Set freely in contact with and away from the outer peripheral surface of the printing plate cylinder 5 and press the paper supplied from the paper feeding unit 4 against the printing plate cylinder 5 .

[0031] The printing plate cylinder 5 has: a porous support plate 5a whose both side edges are respectively attached to the respective peripheral surfaces of a pair of end plates not shown in the figure; In the illustrated mesh, an opening portion 5c having a plura...

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PUM

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Abstract

Provided is a plate cylinder of a stencil printing equipment, in which wrinkles in a master can be effectively prevented from developing, and the stencil printing equipment. In the plate cylinder (5) of the stencil printing equipment (1), around which the master 22 with an opening part (5c) is wound, a projected part (14) is provided near the downstream side end part in the rotational direction of the plate cylinder except its middle part of the opening part (5c).

Description

technical field [0001] The present invention relates to a stencil printing apparatus, and specifically relates to a structure of a printing plate cylinder in which an original plate is wound on an outer peripheral surface. Background technique [0002] In the past, as a simple printing method, digital thermal stencil printing is known. This is to bring a thermal head having a plurality of fine heating elements into contact with a master plate (master) on which a thermoplastic resin film and a porous support are bonded. , by carrying the original plate by a conveying mechanism such as an embossing roller while applying pulse power to the heating element, the perforated image based on the image information is thermally fused on the thermoplastic resin film of the original plate, and then the perforated plate is processed. The roll is wrapped on a porous cylindrical printing plate cylinder, and the paper is pressed against the outer peripheral surface of the printing plate cyli...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B41F13/10B41F27/06
Inventor 小林一喜佐藤卓夫
Owner RISO KAGAKU CORP