Paper rolling device for printer

Abstract

The invention discloses a paper rolling device for a printer. The paper rolling device comprises a machine base and a paper rolling device body. A workbench is arranged on the upper end face of the machine base. The paper rolling device body comprises a rear limiting unit and a front limiting unit which are arranged in a front-back manner. The rear limiting unit comprises a pair of columnar rear limiting supporting plates which are symmetrically arranged left and right. The front limiting unit comprises a pair of columnar front limiting supporting plates which are symmetrically arranged left and right. The rear limiting supporting plates and the front limiting supporting plates, all of which are arranged on the same side correspondingly are right oppositely arranged in a front-back manner.The rear limiting supporting plates and the front limiting supporting plates synchronously get away from one another or get close to one another in the front-back direction. The end faces, oppositelygetting close to each other, of each rear limiting supporting plate and the corresponding front supporting limiting plate are provided with a plurality of rear paper core supporting blocks and frontpaper core supporting blocks, wherein the rear paper core supporting blocks and the front paper core supporting blocks are circumferentially evenly distributed, and the rear paper core supporting blocks and the front paper core supporting blocks are movably arranged in the radial direction. According to the paper rolling device, paper is located in the center of the workbench in the left-right moving direction, the paper rolling stability is high, and printing accuracy and quality are guaranteed; and the paper rolling device adapts to different sizes of paper.

Description

technical field [0001] The invention relates to the technical field of printing equipment, in particular to a roll paper device for a printing machine. Background technique [0002] In the existing printing machines, a paper roll mechanism is generally required to feed and rewind the paper, so that the printing paper passes through the surface of the workbench; generally, the paper core is connected to the paper core through the paper roll and drives the paper core to rotate, so that the paper on the paper feed roll The printing paper is sent out, and the printing paper is rewound by the take-up reel; when the paper is rolled, the clips are clamped from both sides of the paper feed reel and the take-up reel. However, when the existing printing machine rolls the paper, the clamping stability is poor, which leads to the deviation of the paper core and the unsatisfactory stability of the roll paper. Moreover, the existing printing machine can only be installed with a paper cor...

AI Technical Summary

Problems solved by technology

However, when the existing printing machine rolls the paper, the clamping stability is poor, which leads to the deviation of the paper core and the unsatisfactory stability of the roll paper

Moreover, the existing printing machine can only be installed with a paper core of a specified diameter when winding paper. When winding paper cores with different diameters, it is necessary to replace the winding roll or add an auxiliary sleeve of the corresponding specification, which is inconvenient to use and has a small scope of application.

Therefore, the existing printing machines have the problems of unsatisfactory roll paper stability, inconvenient use and small application range.

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