Device for removing dust on papers before printing of printed matters

Abstract

The invention discloses a device for removing dust on papers before printing of printed matters and relates to the technical field of printing. The device comprises a paper conveying table, a primarydust removing mechanism, a secondary dust removing mechanism and dust removing mechanism installing platforms, wherein the dust removing mechanism installing platforms are symmetrically arranged at two sides of the paper conveying table; the primary dust removing mechanism comprises a positive-pressure air blower, a negative-pressure induced draft fan and a settling chamber; a trumpet-shaped air outlet is formed in the positive-pressure air blower; a trumpet-shaped air inlet is formed in the negative-pressure induced draft fan; both the positive-pressure air blower and the negative-pressure induced draft fan face toward the upper surfaces of the papers; the negative-pressure induced draft fan is connected with the settling chamber through an air supply pipe; the secondary dust removing mechanism comprises a roll shaft, a roller sleeving on the roll shaft and a dust removing brush cylinder sleeving on the roller; two ends of the roll shaft are arranged on the dust removing mechanism installing platforms through supports; and the outer edge of the dust removing brush cylinder is in contact with the upper surfaces of the papers. The device disclosed by the invention has the advantagesthat the dust on the papers can be effectively removed and the removing rate is up to more than 99%, so that the normal printing of the papers is prevented from being influenced by the dust.

Description

Technical field: [0001] The invention relates to the technical field of printing, in particular to a paper dust removal device before printing printed matter. Background technique: [0002] A printing press is a machine for printing text and images. It is generally composed of plate loading, ink application, embossing, material feeding, material receiving platform and other mechanisms. The working principle is to first make the printing plate of the text and image to be printed, install it on the printing machine, and then apply the ink to the place with the text and image on the printing plate manually or by the printing machine, and then directly or indirectly transfer it to the paper. or other substrates to reproduce the same print as the printing plate. [0003] At present, most of the substrates used in printed matter are paper, but during the process of processing and storage, dust may adhere to the surface of the paper. If the dust is not removed, white spots will a...

AI Technical Summary

Problems solved by technology

[0003] At present, most of the substrates used in printed matter are paper, but during the processing and storage of paper, dust may adhere to the surface. If the dust is not removed, white spots will appear on the printed matter and the scrap rate of printed matter will increase.

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