A cam-driven and clamped paper roll device for a printing machine

Abstract

The invention discloses a paper winding device provided with cams for driving and clamping and used for a printer. The paper winding device comprises a base and a paper winding device body. The paperwinding device body comprises a rear limiting unit and a front limiting unit which are arranged in the front-back direction. The rear limiting unit comprises a pair of cylindrical rear limiting supporting plates which are arranged in a bilaterally symmetrical mode. The front limiting unit comprises a pair of cylindrical front limiting supporting plates which are arranged in a bilaterally symmetrical mode. A plurality of rear paper core limiting units and a plurality of front paper core limiting units are separately arranged on the end faces, close to each other, of each rear limiting supporting plate and the corresponding front limiting supporting plate. Each rear paper core limiting unit comprises a plurality of rear paper core inner limiting columns and a plurality of rear paper core outer limiting columns, wherein the rear paper core inner limiting columns and the rear paper core outer limiting columns synchronously move in the radial direction. Each front paper core limiting unit comprises a plurality of front paper core inner limiting columns and a plurality of front paper core outer limiting columns, wherein the front paper core inner limiting columns and the front paper coreouter limiting columns synchronously move in the radial direction. According to the paper winding device provided with the cams for driving and clamping, the left-right moving direction of paper is located at the center of a workbench, so that the paper winding stability is high, the printing accuracy and quality are ensured, and the paper winding device can adapt to paper with different sizes.

Description

technical field [0001] The invention relates to the technical field of printing equipment, in particular to a cam-driven and clamped paper roll 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 ins...

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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