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Device for drying sheet of paper used for single sheet paper printing machine

A printing press, sheet-fed technology, applied in the general parts of printing machinery, printing press, drying gas arrangement, etc., can solve problems such as unimprovable efficiency, achieve good efficiency, structure optimization, and avoid warpage.

Inactive Publication Date: 2007-11-21
HEIDELBERGER DRUCKMASCHINEN AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Efficiency can be improved to some extent, but not to the desired extent, by the proposed optimization

Method used

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  • Device for drying sheet of paper used for single sheet paper printing machine

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Embodiment Construction

[0019] The single figure shows a detail of the sheet-fed printing press 1 . The sheet-fed printing press 1 comprises a hot air dryer 2 with nozzles 3 arranged in a grid. The sheets 4 conveyed past the hot air dryer 2 by means of the conveying device 5 or the printing ink lying thereon are dried by the hot air expelled from the nozzles 3 .

[0020] The transport device 5 is a conveyor belt or alternatively also a cylinder of the printing press 1 , for example an impression cylinder. The conveying device 5 conveys the sheets in the direction of sheet travel, which is symbolically indicated by an arrow in the figure.

[0021] The nozzle 3 is connected to the hot air supply device 6, after the hot air discharged by the nozzle 3 impinges on the sheet 4 and part of the heat of the hot air is released to the sheet, this hot air is sucked by the suction device 7 out. The nozzle 3 is designed as a so-called round nozzle with circular nozzle openings which determine the outflow diame...

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Abstract

The present invention relates to a device for drying sheet of paper used for single sheet paper printing machine (1). The mentioned device includes a hot air dryer (2) having a hot-air outflow temperature which is at least 300 DEG C.

Description

technical field [0001] The invention relates to a device for drying sheets in a sheet-fed printing press, which device has a hot air dryer with a hot air outlet temperature. Background technique [0002] The present invention is based on the following background: Due to different requirements, a hot air dryer for drying a printed material web in a web printing press is basically the same as a hot air dryer for drying a printed material sheet in a sheet-fed printing press. Air dryers are different. In particular, the hot air discharge temperature is much higher in hot air dryers for drying printing material webs than in hot air dryers for drying printing material sheets. [0003] For example, DE 691 26 148 T2 (corresponding to EP 0 629 500 B1) describes a hot air dryer with burners, which keeps the circulating hot air at a temperature of up to 250° C. In contrast, EP 0 647 524 B1 describes a device for drying sheets in a sheet-fed printing press, which device comprises a ho...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B41F23/04F26B21/00
CPCB41F23/044B41F23/0426
Inventor 于尔根·阿尔布雷赫特彼得·哈赫曼罗尔夫·米勒
Owner HEIDELBERGER DRUCKMASCHINEN AG
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