Automatic paper cutting device for multi-piece chain paper bill printer

Abstract

The invention discloses an automatic paper cutting device for a multi-piece chain paper bill printer. The automatic paper cutting device comprises a fixed knife installation frame, a movable knife installation frame, a fixed knife, a movable knife matched with the fixed knife, a movable limit guide mechanism and a drive transmission mechanism which drives the movable knife to slide on the movable knife installation frame up and down and is matched with the fixed knife to cut paper; the fixed knife installation frame is arranged on the top of the movable knife installation frame; the fixed knife is arranged on the fixed knife installation frame; the movable knife is arranged on the movable knife installation frame; the fixed knife installation frame is provided with a jacking and bending structure which can ensure that the fixed knife has certain curvature and gradually bends toward one side of the movable knife from two sides of the fixed knife to the middle part of the fixed knife; and the movable knife is provided with a knife edge surface of which the middle part is lower than two sides. The automatic paper cutting device avoids phenomena that burrs are easily produced, and paper is wound and jammed during paper cutting, a cut of cut paper is smooth and clean, the paper is cut reliably, and multiple layers of paper can be cut.

Description

technical field [0001] The invention relates to an automatic paper cutting device for a multi-chain paper bill printer, which belongs to the technical field of printers and is mainly used in tax self-service invoice printing, bank self-service printing of customer statements, medical unit self-service printing of registration forms, laboratory test forms, etc. and telecommunications ﹑Highways, railways and other aspects that require customers to self-print multi-link paper and automatically cut paper. Background technique [0002] At present, the existing printers with paper cutters on the market fall into the following categories: 1) micro-printing printers, generally used in banks, ATMs, supermarket cashiers, mobile police on-site printing, law enforcement documents, instrumentation printouts, small Tickets, queuing machines, etc.; 2) Fax machines, used for larger formats such as A4, but only for single-layer thermal paper; 3) Ordinary paper multi-link, but due to the incr...

AI Technical Summary

Problems solved by technology

However, the chain paper printers on the market have always been designed according to the needs of counter and desktop printing, which cannot meet the automatic paper cutting requirements of the self-service system. , the cutter printer that can cut more than three layers of chain paper is blank in the market

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