Screen printing device for packaging

Abstract

The invention provides a screen printing device for packaging, which is characterized by comprising an ink control unit, and an ink brushing unit, an ink distributing unit, an ink separating unit and a collecting unit which are sequentially arranged at the lower part of the ink control unit, ink is quantitatively absorbed into the ink separating unit from the collecting unit under the control of the ink control unit, then the ink control unit inputs the ink in the ink separating unit into the ink distributing unit, and reciprocating printing work is carried out on the premise that it is guaranteed that the ink is not dry through cooperation of the ink distributing unit and the ink brushing unit. A brush plate transfers redundant ink flowing out of an ink distributing unit to one side of the printing unit while printing ink at the upper end of the printing unit to a printed object, and the redundant ink is guided into a collecting box along a collecting pipe to be recycled, so that the residual ink on a screen plate can be collected and discharged again after each reciprocating printing, and the printing efficiency is improved. The ink is energy-saving and environment-friendly, and large change of color difference of follow-up printed matters caused by viscosity increase of residual ink is prevented.

Description

technical field [0001] The invention relates to the technical field of packaging printing, in particular to a screen printing device for packaging. Background technique [0002] During the processing of food packaging, it is usually necessary to print the surface of the packaging to ensure that the food information inside the packaging can be understood by consumers at the first time. In addition, printing food packaging helps to make the packaging more beautiful and further To attract consumers' desire to purchase, existing printing methods are generally divided into letterpress printing, offset printing, gravure printing, screen printing and other printing methods. The present invention only needs to improve the existing screen printing. [0003] Chinese patent CN 111591019 B discloses a screen printing method, which is applied to the convex printing of arched workpieces, the convex surface includes a first plane, a second plane and a curved surface, the screen printing me...

AI Technical Summary

Problems solved by technology

[0004] However, in the actual printing process of this technical solution, it is usually necessary to pour a certain amount of ink into the screen printing plate for accumulation. During work, the ink is distributed through the ink distribution plate, and then printed through the ink brushing plate. Printing by way of ink accumulation, due to the effect of evaporation during printing, the water content of the ink will gradually decrease, resulting in a change in the viscosity of the ink, which will cause a large color difference in the finished products printed successively, affecting the appearance of the finished product. In addition, now In some printing, the ink cannot be evenly applied during the ink distribution process, resulting in partial printing defects in the product after the factor, which seriously affects the appearance

Images