Screen frame positioner for screen photosensitive plate making and rapid and accurate positioning method thereof

Abstract

The invention discloses a screen frame positioner for screen photosensitive plate making and a rapid and accurate positioning method thereof. The screen frame positioner consists of a conical ejector pin positioning device, a trapezoid ejector pin positioning device, a screen frame equipped with a ladder rod polymer photosensitive film screen, and a fixation frame for positioning the screen frame. The rapid and accurate positioning method includes: a preparation alignment process under a lighting condition and a printing platemaking process under a darkroom condition. With the aid of the screen frame positioned, a complex three-parameter screen frame positioning problem is converted to a positioning problem of three single parameters. Rapid and accurate positioning replaces the time-consuming and laborious screen frame manual positioning that cannot ensure the positioning accuracy.

Description

technical field [0001] The invention relates to a screen frame positioner for screen photosensitive plate making and a fast and accurate positioning method. Background technique [0002] The textile industry is a traditional pillar industry of the national economy and an important livelihood industry. At the same time, it is an industry with comparative advantages in my country in the international competition under the background of economic globalization. During the "Twelfth Five-Year Plan" period, the textile industry faced double competition from developed countries at the high end of the industrial chain and developing countries at the low end of the industrial chain. Printed fabrics account for 11% to 13% of global textiles, 58% of printed fabrics are produced by rotary screen printing machines, and 28% for flat screen printing; With high precision and clear patterns, it is suitable for both light and thin fabrics (such as silk) and thick and heavy fabrics (such as bl...

AI Technical Summary

Problems solved by technology

The screen frame positioning of the screen photosensitive plate-making involves the adjustment of the three parameters of the screen frame X, Y, and Z. In view of the fact that there is mutual coupling between the three parameters, the manual proofreading of the screen frame positioning is time-consuming and laborious, and the positioning accuracy is difficult to guarantee; In addition, the operation process of screen photosensitive plate-making needs to be carried out in a dark room, which makes the manual positioning accuracy based on the experience and skills of printing technicians even more unsatisfactory; currently, defective products caused by poor positioning accuracy of screen photosensitive plate-making frame happened

So far, the research on screen frame positioning in screen photosensitive plate making is still blank and needs to be filled urgently

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