A portable precision print head

Abstract

The invention discloses a portable precision printing head, which includes: a core main frame, a heat-sensitive assembly, a rubber roller assembly and a paper cutting assembly. The paper cutting assembly includes a first motor, a first gear, a second gear, a third gear and For the cutting knife, the first motor is installed in the main frame of the machine core, the first gear is fixed on the output end of the first motor, the second gear is driven and connected with the first gear, the second gear is meshed with the third gear, the second gear, the first gear The block is set eccentrically on the end face of the three gears, and the cutting knife is provided with a slot matching the block. When the first motor is working, it drives the first gear and the second gear to rotate, and drives the cutter to reciprocate linearly through the sliding cooperation between the block and the slot. The activity realizes paper cutting. The dual-gear drive structure of the present invention is simpler, reduces the installation space requirement, and reduces the size of the print head. When the gear rotates, the sliding cooperation between the block and the slot on the cutter drives the cutter to move, and the stepping motor has stronger power and travels accurately. , Cut paper quickly, which is conducive to more stable paper feeding and improved efficiency.

Description

technical field [0001] The invention belongs to the technical field of printing equipment, and in particular relates to a portable precision printing head. Background technique [0002] The printer is one of the output devices of the computer, which is used to print the computer processing results on related media. Existing printers are roughly divided into inkjet printers, laser printers, etc., which print the text and patterns in the computer on paper or other media. [0003] The output of the printer is divided into a print head. The paper passes through the roller and is transferred onto the paper to form a pattern or text. After that, the paper is automatically cut to complete the printing process. The design of the print head is particularly important. Whether the work is reliable or not is related to the stability and quality of printing. The print head with better stability runs continuously and normally during operation, while the print head with poor stability is p...

AI Technical Summary

Problems solved by technology

[0003] The output of the printer is divided into a print head. The paper passes through the roller and is transferred onto the paper to form a pattern or text. After that, the paper is automatically cut to complete the printing process. The design of the print head is particularly important. Whether the work is reliable or not is related to the stability and quality of printing. The print head with better stability runs continuously and normally when it is working, and the print head with poor stability is prone to failure during operation. When a failure occurs, it needs to stop working to find the cause, and the printing efficiency is seriously affected.

[0004] Paper cutting is the last process after printing. The paper is output only after paper cutting. The common paper cutting on the market is driven by a worm gear cutter. Although the paper cutting is fast, it requires a large installation space and inevitably increases. The volume and quality of the print head are increased, the block is bulky, and it cannot be miniaturized and precise; and the driving accuracy of the DC motor is poor, and the power is small, and it is easy to cause insufficient paper cutting force to cause continuous paper or paper jams, which affects the print head. work efficiency

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