Double-printing equipment for duplex invoice

Abstract

The invention relates to the field of printing, in particular to double-printing equipment for a duplex invoice. Paper in a paper rolling part A is printed in a printing group C to form a first invoice; paper in a paper rolling part B is printed in a printing group D to form a second invoice; tension monitoring is performed on the first invoice and the second invoice before the first invoice and the second invoice enter a combining part, and the tension of the first invoice and the tension of the second invoice are guaranteed to be consistent during combination, so that the content of the first invoice and the content of the second invoice are completely overlapped and registered. Invoice number printing and locking are performed on the two combined invoices, the invoice subjected to double printing is cut into two independent single invoices, and finally, the two single invoices are folded simultaneously. Thus, double printing of the two invoices is completed simultaneously, and the printing efficiency is 2-3 times higher than that of traditional printing equipment.

Description

technical field [0001] The invention relates to the field of printing, in particular to a double-combination printing device for double-page invoices. Background technique [0002] Invoices are divided into multi-page invoices and ordinary single-page invoices. A multi-page invoice refers to an invoice made by stacking multiple invoices with the same invoice number. At present, the commonly used invoice printing equipment is for printing on paper with a width of no more than 450mm. , and can only print single-page invoices, which includes a paper-loading part and a printing part. There is a tension control part at the paper-loading part. The tension control part includes a primary tension controller and a magnetic powder brake that works with the primary tension controller. , used to control and adjust the tension of the paper conveying process. In each printing group, in order to ensure the balance of water and ink during printing, a water transmission mechanism is install...

AI Technical Summary

Problems solved by technology

[0004] With the current increase in the price of special paper for invoices, and in the market competition, the unit price of invoice sales has been reduced by 80%-90% compared with the unit price five years ago. Therefore, under this premise, it is necessary to improve printing efficiency and increase production capacity to reduce production. cost, but the cost of high-efficiency printing equipment is too high at present, so it can only be improved from the traditional printing equipment. Printing, hinge, numbering, seaming, punching, folding and other processes to increase printing productivity

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