Multi-standard cardboard drive paper feeding device and paper feeding method for corrugated box printing machine

Abstract

The invention discloses a multi-specification paper board transmission paper feeding device for a corrugated case printing machine and a paper feeding method. The device comprises a belt paper feedingmechanism and an air suction paper feeding mechanism which synchronously move to convey a paper board in a cooperated manner, a gap adjusting assembly is arranged in the belt paper feeding mechanism,and a distance adjusting mechanism is arranged on the belt paper feeding mechanism and the lower portion of the air suction paper feeding mechanism; the method comprises the steps that the belt paperfeeding mechanism carries out clamping conveying on a paper board through an adjustable synchronous belt assembly and a fixed synchronous belt assembly which are matched, meanwhile, the air suction paper feeding mechanism carries out absorption conveying on the paper board through negative pressure suction force, the gap adjusting assembly is used for adjusting the gap width between the adjustable synchronous belt assembly and the fixed synchronous belt assembly, and the gap can adapt to the thickness of the paper board; the distance adjusting mechanism is used for adjusting the distance between the belt paper feeding mechanism and the air suction paper feeding mechanism, and the distance can adapt to the width of the paper board; and the damage of a corrugated board can be reduced to themaximum degree, the subsequent printing quality is ensured, energy consumption can be effectively reduced, and printing cost is saved.

Description

technical field [0001] The invention relates to the technical field of corrugated box printing, in particular to a multi-standard cardboard transmission paper feeding device and a paper feeding method for a corrugated box printing machine. Background technique [0002] At present, corrugated box printing machines can be divided into two types according to different paper feeding methods: pressure paper feeding and vacuum adsorption pressure-free paper feeding. Among them, in the pressure paper feeding method, the corrugated cardboard is located between the paper feeding rubber roller and the paper feeding flower roller. In order to ensure the paper feeding accuracy, a certain pressure needs to be applied, so the corrugated cardboard is easily crushed and affects the subsequent printing accuracy. The way of vacuum adsorption and pressure-free paper feeding is that a suction fan is installed in the paper feeding device, and the corrugated cardboard is adsorbed on the paper fee...

AI Technical Summary

Problems solved by technology

Among them, in the pressure paper feeding method, the corrugated cardboard is located between the paper feeding rubber roller and the paper feeding flower roller. In order to ensure the paper feeding accuracy, a certain pressure needs to be applied, so the corrugated cardboard is easily crushed, which affects the subsequent printing accuracy.

The way of vacuum adsorption and pressure-free paper feeding is that a suction fan is installed in the paper feeding device, and the corrugated cardboard is adsorbed on the paper feeding table by the bellows suction fan, and then the paper feeding is completed under the friction generated by the paper feeding wheel. The structure of the device in this way is cumbersome. In order to generate sufficient friction between the paper feed wheel and the corrugated cardboard, a high-power suction fan is usually required, which leads to high energy consumption of the equipment and increases the cost of carton printing.

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