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Apparatus for dusting printed sheets with powder

A powder and equipment technology, applied in office printing equipment, printing post-processing, general parts of printing machinery, etc., can solve problems that have not been solved, and achieve the effect of allowing air pressure compensation

Active Publication Date: 2015-03-18
HEIDELBERGER DRUCKMASCHINEN AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] A further spreading device is described in DE 197 07 157 A1, wherein the previously stated problems are also not solved

Method used

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  • Apparatus for dusting printed sheets with powder
  • Apparatus for dusting printed sheets with powder
  • Apparatus for dusting printed sheets with powder

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0021] exist Figures 1 to 8 In , elements and components corresponding to each other are denoted by the same reference numerals.

[0022] Figures 1 to 8 A printing press 1 for printing on sheets by the offset printing method is shown in a partial illustration. The printing press 1 includes a sheet collector, of which the device for dusting the printed sheets 2 shown in the detail is a component.

[0023] figure 1 The device is shown during spraying of powder onto the printed sheet 2 . The device comprises a box-shaped housing 3 having a front side 4 facing the printed sheet 2 and a rear side 5 facing away from the printed sheet 2 . In housing 3 or above housing 3 is arranged an injection device 6 with powder nozzles 7 arranged in a nozzle row 8 . The nozzle row 8 extends across the width of the printed sheet 2 and is thus perpendicular to figure 1 drawing plane.

[0024] A suction device 9 is connected to the housing 3 and opens into a side wall 10 of the housing 3 ...

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PUM

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Abstract

An apparatus for dusting printed sheets with powder contains at least one powder nozzle, an actuating element which is mounted such that it can be adjusted into a position, in which the actuating element is situated in the jet path of the powder nozzle and the powder bounces off the actuating element, and an extraction device for extracting the powder which has bounced off the actuating element. An air-conducting connection exists permanently between the powder nozzle and the surroundings of the apparatus.

Description

technical field [0001] The invention relates to a device for dusting printed sheets with powder, comprising at least one powder nozzle, an adjustment element and a suction device, the adjustment element being mounted adjustably in a position in which the An adjusting element is located in the spray path of the powder nozzle and the powder is bounced off of the adjusting element, the suction device being used to suck up the powder bounced off of the adjusting element. Background technique [0002] One requirement placed on the spreading device is that the powder can only be sprayed onto the sheets and not into the gaps between successive sheets. Devices with corresponding powder beats were therefore developed. [0003] Another requirement that arises in this case is that the powder cycle should be precise even at high printing speeds. [0004] In order to comply with this requirement, DE 199 01 245 A1 proposes a device whose powder gas generator generates a powder-laden gas...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B41F23/06B41L23/22B05C19/06B01F3/06B41M7/02B01F23/30B05B12/22B05B14/10
CPCB05C19/06B05B7/1486B05B7/1468B41F23/06B41M7/02B05B15/0412B05B15/0437B05C19/04B05C19/02B05B12/22B05B14/10
Inventor C·哈斯
Owner HEIDELBERGER DRUCKMASCHINEN AG