A cylinder-driven centered roll paper device for a printing machine

Abstract

The invention discloses a cylinder-driven centered paper roll device for a printing machine, which includes a machine base, a paper roll rear limit device and a paper roll front limit device; the paper roll rear limit device includes a pair of left and right symmetrically arranged paper rolls The rear limit unit; the front limit device of the roll paper includes a pair of left and right symmetrically arranged front limit units of the roll paper; the rear limit unit of the roll paper includes a cylindrical paper tube rear limit plate; the front end of the paper tube rear limit plate The center of the surface is screwed with a connecting screw; the rear end surface of the rear vertical support plate is provided with a pair of centered cylinders symmetrically arranged left and right; the centered cylinder is used to drive the rear limit plate of the paper roll to move backward; the front limit unit of the paper roll includes a cylinder A paper tube front limiting plate; a connecting sleeve is formed in the center of the rear end surface of the paper tube front limiting plate; the connecting screw is matched with the connecting sleeve. The left and right moving direction of the paper in the present invention is located at the center of the workbench, and the roll paper has high stability, which ensures the accuracy and quality of printing, and is suitable for papers of different sizes.

Description

technical field [0001] The invention relates to the technical field of printing equipment, in particular to a cylinder-driven centered 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 i...

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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