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Printing web cleaner

A technology for cleaning devices and web materials, which is applied in the field of processing systems and can solve problems such as multi-energy, consumption, and complex structures

Inactive Publication Date: 2006-11-08
L·贝内特
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Compressed air has had some success, however, studies have found that it requires almost 2 psi of pressure, which consumes considerable energy and complicates other structures
A combination of rotating brushes and vacuum treatment is considered a viable solution, however, it is complex and requires high-capacity vacuum-type blowers and brushes in contact with the web surface

Method used

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Examples

Experimental program
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Embodiment Construction

[0034] The best mode for carrying out the invention is as Figure 1-15 The preferred embodiment shown includes a cleaning device 20 for removing particles and other debris from a substrate web 22 used in a printing press 24 . It should be noted that although the invention has been specifically described for use with lithographic printing presses for offset printing, it is equally applicable to other printing presses or printing devices, including letterpress printing, flexographic printing, gravure printing , inkjet or laser printing, or any other device that employs a web that needs to be cleaned.

[0035] A plurality of track rollers 26, which are cylindrical in the present invention, such as figure 1 and 2 Between them, the web of substrate material 22 is held in tension as shown. The location of the track rollers 26 and their relative positions are determined by the construction of the printing press and can be varied to suit a particular application. Web 22 is driven ...

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Abstract

A web cleaner (20) that removes debris that clings to the surface of a substrate in a printing process. The cleaner uses a number of path rollers (26) holding web (22) taut therebetween with the web driven at high speeds by a printing press (24). The cleaner utilizes a pair of counter rotating rollers (28) positioned between the path rollers with one roller positioned on each side of the web in close proximity therewith and each roller rotates in an opposite direction to that of the web's flowpath. A separating bar (36) is positioned at right angles to the web bordering each roller in adjacent relationship for directing the air into a plenum (44) that covers each roller and air separating bar. The plenum is used to collect the debris detached from the web surface by air currents formed by rotation of the rollers creating an air film on the web surface. The same air currents also produce a turbulent air flow within the plenum. A dust collector (50) is connected to each plenum for accumulating debris dislodged from the web surface.

Description

technical field [0001] The present invention relates generally to cleaning of webs, and more particularly, to a handling system that removes a web of substrate material without contacting either the upper or lower surface of the web debris on the surface. Background technique [0002] Currently, in the printing field, a variety of web cleaning devices have been used to provide a device for effectively removing unwanted particles from the surface of the web. Many of the devices that have been used have limitations or little success. Bristles, which rotate in the form of a brush at 600-800 revolutions per minute, have been used to lightly brush the surface of the web. Compressed air has been used with some success, however, studies have found that it requires almost 2 psi of pressure, which consumes considerable energy and complicates other structures. A combination of rotating brushes and vacuum treatment is considered a viable solution, however, it is complex and requires...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B08B1/20B08B5/04B08B5/02B08B11/00B41F23/00
CPCB08B5/026B08B5/046B41F23/002
Inventor L·贝内特
Owner L·贝内特
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