Printing device

Abstract

The invention relates to a printing device. The printing device comprises a rack, a support table and a driving shaft, wherein a conveying belt is arranged on the support table, engaged teeth are uniformly distributed on the conveying belt, a driving disc is coaxially and fixedly connected to the driving shaft, a first pull rod is rotatably connected to the driving disc, a driving rod is rotatablyconnected to the first pull rod, a second pull rod is connected to the driving rod, a sliding block is hinged to the second pull rod, a support rod is rotatably connected to the middle of the drivingrod, a plurality of printing tubes are rotatably connected to the driving rod, printing plates are removably connected to the bottom ends of the printing tubes, the printing plates are abutted with the conveying belt, driving teeth are connected to the printing plates, and limiting blocks are arranged on the printing plates; an ink box is arranged on the rack, a sliding plate is in sliding connection to the interior of the ink box, an elastic ink bag is arranged in the ink box, and a guide tube is connected between the elastic ink bag and an ink inlet; and a push rod is fixedly connected to the sliding plate, an air bag is fixedly connected to the support table on the bottom end of the push rod, and a support spring is arranged in the air bag. According to the printing device, the requirements of gradient printing and multicolor mixed printing of paper are satisfied.

Description

technical field [0001] The invention relates to the field of printing, in particular to a printing device. Background technique [0002] Printing is an essential and important link in art advertisements, which refers to the process of transferring and painting colored inks onto printed objects. Printing in a broad sense includes pre-press, printing, post-press and various processes and processes related to graphic reproduction. In addition to selecting the appropriate substrate (paper or other printing materials) and ink, the final effect of the printed matter still needs to be completed by an appropriate printing method. There are many types of printing, different methods, different operations, and different costs and effects. According to the relative position of the graphic and non-graphical areas on the printing plate, the common printing methods can be divided into four categories: letterpress printing, gravure printing, offset printing and stencil printing; according...

AI Technical Summary

Problems solved by technology

[0003] However, when the existing printing device prints paper, it usually uses a single printing head for printing, the color of the paper is single and unchanged, and the printing effect is relatively single, and some paper needs to be printed with gradients or multi-color mixed printing. Existing printing devices cannot meet these needs

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