QR code printer for seed packing bag

Abstract

The application discloses a QR code printer for a seed packaging bag. The QR code printer comprises a base and a conveyor belt, wherein two supporting plates are arranged on the base and located at two sides of the conveyor belt respectively; a top plate is arranged between the two supporting plates; a motor is arranged on the top plate; a linkage shaft is arranged on an output shaft of the motor;a rectifying mechanism and a printing mechanism are sequentially arranged on the linkage shaft in a conveying direction of the conveyor belt; the rectifying mechanism comprises a cam fixedly connected to the linkage shaft and vertical grooves symmetrically formed in the supporting plates left and right; a pressing plate is connected between the two vertical grooves in a sliding manner; a first spring is arranged between the pressing plate and each vertical groove; a rectifying bar is arranged at the bottom of the pressing plate; the printing mechanism comprises a disc fixedly connected to thelinkage shaft and a guide cylinder fixedly connected to the two supporting plates; a linkage arm is hinged to an eccentric part of the disc; a printing head is arranged in the guide cylinder; the topof the printing head is hinged to the end, away from the disc, of the linkage arm; and an inking mechanism is further arranged in the guide cylinder. By adoption of the scheme, the problem that a conventional printer has a poor QR code printing effect is mainly solved.

Description

technical field

[0001] The invention relates to the technical field of printing mechanism. Background technique

[0002] Packaging bags refer to bags used to pack various supplies, making the goods convenient to transport and store during the production and distribution process. Widely used in daily life and industrial production. Actual figures show that 80% of used plastic bags are eventually transported to landfills for disposal like general garbage, and only 7% of plastics are recycled.

[0003] At present, the printing of the two-dimensional code of the packaging bag is mainly printed by the printer; but in the actual operation process, due to the possible deviation of the packaging bag during transportation, the printing position of the two-dimensional code during printing will shift, and the printing effect will not be good. Moreover, due to too much printing ink, excess ink will remain on the printing part of the packaging bag; due to the fluidity of the ink, it wi...

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