Double-face multicolor hard pressing soft offset press

Abstract

The invention relates to a double-face multicolor hard pressing soft offset press. The double-face multicolor hard pressing soft offset press is composed of a paper conveying part, a front conveying part, at least one set of double-face printing unit, a paper collecting end printing unit and a paper collecting part. The paper conveying part is connected with the front conveying part. A paper conveying cylinder, an impression cylinder, a rubber blanket cylinder and a plate cylinder of each double-face printing unit are in an equal-diameter structural mode, and the cylinders are arranged in the printing mode that the impression cylinders impress the rubber blanket cylinders. The first set of double-face printing unit is connected with the front conveying part, and the adjacent double-face printing units are connected through a bolt. Due to the fact that the paper conveying cylinders, the impressing cylinders, the rubber blanket cylinders and the plate cylinders are in the equal diameter structural mode, the universality of parts is high. Due to the fact that the hard pressing soft printing mode that the impressing cylinders impress the rubber blanket cylinder, the problems that double-face printing net points are likely to be deformed and expanded, thin and small net points are likely to be lost are solved. The double-face multicolor hard pressing soft offset press is compact in structure and convenient to operate, so that great practical value and popularization value are achieved.

Description

technical field [0001] The invention relates to an offset printing machine in the printing industry, in particular to a double-sided multi-color hard press soft offset printing machine. Background technique [0002] After retrieving relevant patent documents, a kind of double-sided multi-color hard press soft offset printing machine with the same structure as the present invention has not been retrieved yet. Due to the large number of paper transfer rollers used between the printing units of the existing double-sided multi-color offset printing machines, the number of paper transfers is large, and it is easy to cause cumulative errors, resulting in double images and easy to smudge printed products. The requirements for printed products High printing, it is difficult to meet the printing requirements of high-speed fine-quality products, and the equipment is bulky and energy-consuming It is difficult to improve and upgrade the offset printing machine, so it is necessary to im...

AI Technical Summary

Problems solved by technology

Due to the large number of paper transfer rollers used between the printing units of the existing double-sided multi-color offset printing machines, the number of paper transfers is large, and it is easy to cause cumulative errors, resulting in double images and easy to smudge printed products. The requirements for printed products High printing, it is difficult to meet the printing requirements of high-speed fine-quality products, and the equipment is bulky and energy-consuming It is difficult to improve and upgrade the offset printing machine, so it is necessary to improve the existing offset printing machine to achieve better versatility and improve printing quality

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