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BlueUnderScreenCleanerModule
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$ O2 K9 d9 J# C, o( V" X$ eThe blue under screen cleaner (USC) wipes lint free paper, dry or wet across the underside of the screen to minimize paste build up. Available in three widths, 300, 400 and 520mm. The frequency and mode (wet/dry) is programmable in the product file.+ `* e' P, |& M0 S4 t5 _: P1 y, G
When a screen cleaner operation is required, the two electromagnetic clamps holding the screen cleaner unit in the home position are de-energized. The screen cleaner is attached to the camera carriage by using two permanent magnets., B5 B/ W5 H, Q k' r- U$ N
A paper usage sensor enables the software to monitor the clean paper roll. The paper feed motor supplies a clean section of paper across the two rubber wiper blades of the squeegee assembly. The two blades wipe the paper across the underside of the screen as the USC is pulled across the underside of the screen by the camera carriage. The two rubber wiper blades form the mouth of the vacuum cleaner. Used solvent fumes and excess solder paste are drawn from the underside of the screen, onto the paper by the vacuum created in the manifold between the two blades, by the vacuum filtration unit.
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