B - Operations – Transporting – 41 – F
Patent
B - Operations, Transporting
41
F
B41F 15/40 (2006.01) B23K 3/06 (2006.01) B23K 3/08 (2006.01) H05K 3/12 (2006.01) H05K 3/26 (2006.01) H05K 3/34 (2006.01)
Patent
CA 2094072
A screen printing apparatus for printing paste (2) onto a surface of a board (3) through the medium of a screen (4) having openings (4a). The apparatus comprises a paste automatic supply dispenser (1) of a nonflexible box-like structure which is arranged to be displaced along a pair of guide rails back and forth and to be raised and lowered relative to the guide rails. The dispenser has a chamber for containing the paste (2) to be printed on the surface of the board. The chamber is provided, at a bottom position thereof, with a slit-like aperture (12) extending normal to the direction of travel of the dispenser and arranged to be normally closed and to be kept open to automatically supply a predetermined amount of the paste contained in the chamber onto an upper surface of the screen during printing. The aperture (12) is provided, at its rear edge portion, with a squeegee blade (11) extending along the entire length of the aperture and being adapted to be kept in contact with the upper surface of the screen at its lowest end during printing.
Macrae & Co.
Tani Denkikogyo Co. Ltd.
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