Jet-printing method and system for multi-color patterns on regular geometrical workpieces

Abstract

The invention relates to a jet-printing method for multi-color patterns on regular geometrical workpieces. The method comprises the steps as follows: the regular geometrical workpieces are fixed on a conveying belt and are transmitted by the conveying belt horizontally; the regular geometrical workpieces on the conveying belt pass through a charge coupled device (CCD) camera one by one for image acquisition, and printing parameters corresponding to each regular geometrical workpiece are obtained according to the patterns required to be printed; the conveying belt passes through an ink-jet printing unit, the ink-jet printing unit performs jet printing on the regular geometrical workpieces according to the printing parameters, and the patterns are formed; then the jet-printed regular geometrical workpieces are shot and checked one by one; and finally, ultraviolet curing operation is performed on the jet-printed regular geometrical workpieces, and then finished products are output by the conveying belt. The method has the beneficial effects as follows: the regular geometrical workpieces are not required to be rotated in the whole jet-printing process and are positioned accurately by special fixture bodies, so that the yield is greatly increased; and besides, more accurate coating can be performed according to the shapes of the patterns during bottom layer coating, waste can be avoided by better control and metering, the whole procedure is compact, and efficient jet-printing is realized.

Description

technical field [0001] The invention relates to jet printing of regular geometric workpieces, in particular to a method and system for jet printing color patterns on regular geometric workpieces. Background technique [0002] The surface of a regular geometric workpiece generally has a color pattern, but in the prior art, when printing on the surface of a regular geometric workpiece, it is often necessary to adjust the attitude of the regular geometric workpiece (usually rotation adjustment) After achieving the same set posture, the special equipment will carry out multi-process jet printing, and finally form the required pattern. On the other hand, when the workpiece is rotated in actual operation, there are high requirements for the positioning accuracy of the workpiece, and in the subsequent printing process, it is necessary to first coat the surface of the regular geometric workpiece with an adhesive adhesive. Considering the pattern The shape of the adhesive is not eas...

AI Technical Summary

Problems solved by technology

On the other hand, when the workpiece is rotated in actual operation, there are high requirements for the positioning accuracy of the workpiece, and in the subsequent printing process, it is necessary to first coat the surface of the regular geometric workpiece with an adhesive adhesive. Considering the pattern The shape of the adhesive is not easy to determine, and a large amount of adhesive is often used, which causes unnecessary waste, and the position of the application is also prone to deviation, which reduces the yield of regular geometric workpiece printing.

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