Template-free digital printing equipment

Abstract

The invention discloses template-free digital printing equipment, and relates to a printing machine. According to the technical scheme, the template-free digital printing equipment comprises a machineframe, a paper feeding unit and an ink jetting assembly; the paper feeding unit comprises an inner frame and a plurality of conveying rollers rotationally arranged on the inner frame, wherein a conveying belt is simultaneously tensioned on the conveying rollers; the inner frame is slidely arranged on the machine frame in the vertical direction, and the machine frame is provided with a first motorand a rotating rod driven by the first motor; and a worm is coaxially fixed to the rotating rod, a stud is rotationally arranged on the machine frame, the length direction of the stud is in the vertical direction, the stud is in threaded connection with the inner frame, and a worm gear meshed with the worm is coaxially fixed to the stud. The ink jetting assembly of the template-free digital printing equipment does not need to be lifted, and has the advantages of being high in reliability and not easy to damage; the lifting height of the paper feeding unit is convenient and accurate to adjust,and the printing quality of the paper plates is improved; and a workbench of the printing equipment is not prone to concave deformation, and the printing quality of the ink jetting assembly can be improved by a negative pressure adsorption part.

Description

technical field [0001] The invention relates to a printing machine, in particular to a plateless digital printing device. Background technique [0002] The plateless printing machine is a new printing technology that adopts high-speed inkjet printing technology and does not need to make a template when working. The plateless printing machine can quickly print on the carton. At present, the four-color plateless digital printing machine is more common. Plate digital printing machine can directly image electronic documents (various images or text) on printing media (such as corrugated boxes). Plateless printing can print without loading the plate and starting up, especially suitable for rapid proofing, small batch replenishment or urgent order production. [0003] The existing Chinese utility model patent with authorized notification number CN205705753U discloses a digital printing device for flat corrugated boxes, including: a paper feeding unit for feeding the cardboard to b...

AI Technical Summary

Problems solved by technology

[0004] The above-mentioned existing technical solutions have the following defects: the inkjet component of the printing equipment is arranged on an adjustable bracket, and the printing equipment adjusts the distance between the inkjet component and the cardboard by adjusting the height of the bracket, so that the inkjet component can adapt to different thick cardboard

The existing inkjet components have a relatively large weight, and the lifting of the support needs to drive a large number of components to move; the mechanism drives the support to lift and lower the load, and unstable factors such as vibration will occur when the support is lifted and lowered, which will affect the working stability of the inkjet components. The printing equipment has the defects of low reliability and easy damage

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