Pressure feedback scraper module

Abstract

The invention discloses a pressure feedback scraper module. The module comprises a scraper seat and a pressurizing part, wherein a scraping blade for contacting a soft substrate is arranged in the scraper seat; and the pressurizing part is connected with the scraper seat for applying pressure to the scraper seat; at least two pressure sensing modules are arranged at two sides of the scraper seat for sensing at least two pressure values transferred when the scraping blade contacts the soft substrate and outputting the pressure values to a pressure control module; and the pressure control module calculates a proper way for adjusting a pressurizing part according to the received pressure values so as to control the pressurizing strength and the pressurizing direction of the pressurizing part on the scraper seat. The pressure feed back scraper module can print a film with similar thickness on surfaces of objects which are to be printed and have different areas, reduces errors to achieve the practical effect of better printed quality, and can prevent that the scraper is too close to the soft substrate to scrap the surface of the soft substrate.

Description

technical field [0001] The invention relates to a scraper module, in particular to a pressure feedback scraper module which senses the pressure of a scraper contacting a soft substrate to adjust the pressure applied to the scraper. Background technique [0002] The scraper module in the prior art is installed in the printing machine, and can perform printing or scraping operations on hard or soft substrates such as flexible circuit boards, tapes, and films. For example, printing circuits on flexible circuit boards or printing solder paste, coating glue and other different materials, that is, the scraper module can scrape and print the solder paste and glue on the circuit board. Or, after the printing machine uses the printing head to print the conductive ink with conductive properties on soft substrates such as flexible circuit boards, tapes, and films, the excess ink is scraped off the above-mentioned flexible substrates by the scraper module . [0003] In the current pri...

AI Technical Summary

Problems solved by technology

[0003] In the current printing operation, for large-area screen printing, it is often due to the slight drop in flatness, and the squeegee head does not have a depth detection and compensation design, and when the squeegee module is printing, it will cause solder paste Or the scraping thickness of the glue is uneven, resulting in the thickness of the solder paste or glue in the local area not meeting the design specifications, which may cause poor contact between the circuit printed on the circuit board and the electronic components. Tolerance, so that the entire printing plane produces an error of more than 20μm

Or, when the scraper module scrapes off excess ink from the above-mentioned soft substrate, uneven force is applied during the scraping period, resulting in uneven coating thickness of ink in local areas, resulting in uneven lines of printed lines. Meet actual needs

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