Paper conveying speed-change device for money-printing gravure printing machine

Abstract

The invention discloses a paper conveying speed-change device for a money-printing gravure printing machine. The paper conveying speed-change device for the money-printing gravure printing machine comprises a rack, wherein a power input shaft and a power output shaft are concentrically arranged on the rack; the end parts of the power input shaft and the power output shaft are connected with gear shifting gears separately; a sliding shifting sleeve capable of moving in a reciprocating mode is installed between the gear shifting gears; and the sliding shifting sleeve controls on-off of the poweroutput shaft and the power input shaft, and meanwhile, synchronous rotation or asynchronous rotation of the power output shaft and the power input shaft is achieved through the gear shifting gears. The paper conveying speed-change device for the money-printing gravure printing machine has the advantages of being simple in structure, convenient in gear shifting and low in operation difficulty, andmeets the requirement that only one gravure printing plate is installed when the money-printing gravure printing machine prints small-batch special products; and the paper conveying speed-change device for the money-printing gravure printing machine is capable of greatly saving the cost, and effectively increasing the printing production efficiency of the money-printing gravure printing machine.

Description

technical field [0001] The invention relates to the mechanical design field of banknote printing gravure printing equipment, in particular to a paper feeding speed change device of a banknote printing gravure printing machine. Background technique [0002] Gravure printing refers to the reproduction process of embossing and printing the substrate by using a printing plate with a graphic concave layout. At present, the gravure printing equipment for printing banknotes mostly uses triple-diameter printing plate cylinders, and the triple-diameter cylinders have an embossing bandwidth, which ensures that the ink has sufficient transfer time without increasing the pressure. [0003] The paper feeding part adopts the continuous paper feeding method, that is, one piece of paper corresponds to one printing plate layout, and three gravure printing plates are installed when the banknote printing gravure printing machine normally produces mass products. However, due to the cost of pri...

AI Technical Summary

Problems solved by technology

However, due to the cost of printing plates when printing small batches of products, three printing plates are produced for printing, each printing plate costs 30,000 yuan, and one printing plate can print 1.5 million sheets, which is a big waste, so one printing plate is often used for printing , At this time, only one printing plate is installed on three printing plates, and the other two plates do not touch the paper

[0004] At present, when the domestic gravure printing machine performs single-page printing, its paper feeding device still feeds paper at the normal (three-page) printing speed, so each printed product will Follow up two pieces of white paper, so the white paper needs to be removed from the product stack in the follow-up. The white paper is also easy to get dirty, resulting in waste of manpower, material resources and materials

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