Dispenser

Details Dispenser Dispenser

1993-09-24

1994-11-08

Heinrich, Samuel M.

Metal fusion bonding

Including means to apply flux or filler to work or applicator

228 8, 228 565, 2282481, 228 41, 222420, 222325, 118256, B05C 500, H05K 334

Patent

active

053619633

ABSTRACT:
A dispenser for applying creamy solder onto a substrate, comprising: a syringe 1 storing therein creamy solder; a needle 2 fixed at the forward end of this syringe 1; and a driving mechanism 3 using a pulse-controlled stepping motor and an eccentrically rotating drive motion. The driving mechanism 3 comprises: a linear guide 10 for guiding a syringe holder which holds the syringe 1, a stepping motor 11, a crank 13 and a connecting rod 14 rotatably supported on the crank and the syringe holder. When, the stepping motor 11 is rotated by a predetermined angle, the crank 13 and the connecting rod 14 are eccentrically rotated in an interlocking relation to the rotation of this stepping motor, and the syringe 1 is upwardly and downwardly moved within a predetermined range through a syringe holder 9.

REFERENCES:
patent: 4046290 (1977-09-01), Louder
patent: 4572103 (1986-02-01), Engel
patent: 4942984 (1990-07-01), Miller
patent: 4967933 (1990-11-01), Maiorca et al.
patent: 4983103 (1991-01-01), Ogawa
patent: 5052338 (1991-10-01), Maiorca et al.

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