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Single paper printer

A printing machine and sheet-fed technology, applied in the direction of printing machines, printing, general-purpose parts of printing machinery, etc., can solve the problems that have not been raised, and achieve the effect of compact structure, reduced floor space, and shortened paper conveying distance

Active Publication Date: 2009-11-04
HEIDELBERGER DRUCKMASCHINEN AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In order to solve this problem, although WO 01 / 85455A1 describes that the nozzle center distance depends on the size of the dryer, for example, it can be 25 mm, but it fails to propose an effective way to

Method used

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Embodiment Construction

[0023] A sheet-fed printing press 1 with a printing unit 10 for lithographic offset printing and a delivery 11 and, moreover, a circulating transport unit 12 for transporting the current substrate 5 Passes between the hot air dryer 3 and the paper guide surface 2. The conveying device 12 is a chain conveyor of the paper delivery device 11 , which at least includes at least one gripper bridge 9 for grasping the printing paper 5 . The movement path 8 of the gripper bridge 9 , which defines the paper travel direction 15 , runs along the paper guide surface 2 . The paper guide surface 2 is located next to a flat guide plate and is designed to guide the printing paper 5 without contact. In order to be able to guide the printing paper pneumatically, the paper guide surface 2 is designed as a blow nozzle surface, which generates between itself and the printing paper 5 a blowing cushion capable of supporting the latter. With regard to the smudge-free transport of the printing paper ...

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Abstract

A sheet-fed printing press (1) comprising a hot air dryer (3) with air nozzles (4). There is a proportional relationship ( L:H), the ratio of which is 0.750 to 2.500.

Description

technical field [0001] The invention relates to a sheet-fed printing press comprising a hot air dryer with air nozzles. Background technique [0002] In a sheet-fed press, the substrate is dried by means of rollers or chain conveyors in front of a hot air dryer. If it is conveyed by a roller, the circumferential surface of the roller is the paper guide surface, on which the sheet is placed; if it is conveyed by a chain conveyor, it is equipped with a flat or bowl-shaped guide plate, the so-called paper guides that form the paper-guiding surface. The paper floats on, or slides on, a cushion of air along the guides. The hot air dryer is placed next to the paper guide surface, and in both cases the air nozzles are directed towards the current paper guide surface. [0003] Regarding the air nozzle, there are two main parameters that are more important to its function: one is the nozzle center distance, that is, the grid size of the nozzle grid that includes these air nozzles,...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B41F23/04B41F21/08F26B13/10
CPCB41F23/0443
Inventor 彼得·哈赫曼于尔根·阿尔布雷希特罗尔夫·米勒
Owner HEIDELBERGER DRUCKMASCHINEN AG
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