Discharge column cleaning mechanism, dust collection device using same, and intaglio press

Abstract

The invention provides a discharge column cleaning mechanism, a dust collection device using the same, and an intaglio press. The intaglio press comprises a shell. An inner printing cavity and a post-treatment cavity are formed in the shell. A baking plate, two fourth conveying rollers, an air blowing box, an air suction box and two fifth conveying rollers are arranged in the post-treatment cavity. An electric heating wire is arranged in the baking plate. The air blowing box is used for blowing air to the two end faces of a printed object. The air suction box is used for sucking air from the post-treatment box. The two fourth conveying rollers are paired, and the two fifth conveying rollers are paired. Each fourth conveying roller or each fifth conveying roller is installed on an upper roller shaft or a lower roller shaft. The air inlet end of the air blowing box communicates with an exhaust connector of an electrostatic eliminating device. An air inlet connector of the electrostatic eliminating device communicates with a dust-collection exhaust pipe of the dust collection device. A first air pipe and a second air pipe of the electrostatic eliminating device communicate with an exhaust port of a booster pump. The dust-collection exhaust pipe further communicates with an air inlet of the booster pump. A dust-collection air inlet pipe of the dust collection device communicates with an exhaust port of an air pump, and an air inlet of the air pump communicates with the interior of the air suction box.

Description

technical field [0001] The invention relates to printing technology, in particular to a discharge column cleaning mechanism, a dust removal device and a gravure printing machine. Background technique [0002] The gravure printing machine is a commonly used printing equipment at present, and its structure is relatively simple, which can be applied to large-scale printing requirements. The current gravure printing machine mainly adopts a printing roller with an intaglio pattern, and the pattern is printed on the substrate by dipping the printing roller in ink. After using the gravure printing machine for a long time, the inventor found that the current gravure printing machine mainly has the following defects: [0003] 1. The requirement for the thickness of the substrate is fixed, mainly because the gap between the conveying rollers on both sides of the printed matter is fixed. Therefore, when facing substrates of different thicknesses, different printing machines need to be...

AI Technical Summary

Problems solved by technology

Although the filtering effect of this method is very good, the resistance generated by it is relatively large, which results in relatively high energy consumption, and the filter element needs to be repaired and replaced regularly, which greatly increases the cost of use and maintenance.

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