PURPOSE: To improve a through-hole printing forming rate uniformly extending over the whole through-holes of a print by gradually forming the pin-holes of a current regulating plate, to which a plurality of the pin-holes are shaped in a matrix form, toward the printing finishing side from the printing starting side of the print in small size and inclining the current regulating plate in high height on the printing standing starting side of the print.
CONSTITUTION: A suction block 19 for holding a print 1, a suction port 10 formed to the bottom of the suction block 19, a suction device 11 piped to the suction port 10, and a current regulating plate 20, to which a plurality of pin-holes 21 are shaped in a matrix form between the suction port 10 and the print 1 positioned and fixed onto the suction block 19, are provide. The flow rate of suction is increased regarding the low section of suction pressure on the printing starting side by making the pin-holes 21a on the printing starting side of the current regulating plate 20 larger than the pin-holes 21b on the printing finishing side and bringing the printing starting side of the current regulating plate 20 near to the print 1. Accordingly, a through-hole printing forming rate on the printing starting side can be improved.
NAITO TAKAO
NAKAGAWA KOICHI
| JPS60132386A | 1985-07-15 | |||
| JPS6053097A | 1985-03-26 | |||
| JPS556832A | 1980-01-18 |