A paper roll device with connecting rod opening and closing for printing machine

Abstract

The invention discloses a paper winding device adopting connecting rods for opening and closure for a printing press. The paper winding device comprises a base and paper winding devices, and the lowerends of the right and left end faces of the base are each provided with a pair of lower support plates arranged longitudinally symmetrically; the center of the upper end face of each lower support plate is fixedly provided with an upper support plate; a pair of upper support plates are pivoted to paper winding central shafts arranged in a fore-and-aft direction; the end faces, relatively close toeach other, of the paper winding central shafts on the same side are provided with paper tube limiting units in a fore-and-aft sliding manner; each paper tube limiting unit comprises the connecting rods arranged on the opposite end faces of the paper winding central shafts in the fore-and-aft sliding manner; the end faces, relatively close to each other, of the connecting rods on the same side are fixedly provided with cylindrical limit supporting disks; the end faces, relatively close to each other, of the limit supporting disks on the same side are provided with a plurality of limiting claws uniformly distributed circumstantially; and the limiting claws are moved radially. According to the paper winding device, the horizontal moving direction of paper is located at the center of a working table, and the paper winding stability is high; the printing accuracy and quality are guaranteed; and the paper winding device is applicable for paper of different sizes.

Description

technical field [0001] The invention relates to the technical field of printing equipment, in particular to a paper roll device that is opened and closed by a connecting rod 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 ...

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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