Screen printing machine for through hole printing an electric conductor
First Claim
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1. A screen printing machine comprising:
- a table on which a substrate is to be put;
a substrate adjusting means on said table for adjusting the position of a substrate on the table;
a screen plate movable onto the table over a substrate;
a squeegee movable on the plate for applying a paste to the substrate;
a suction system connected with said table for applying suction to a substrate and through holes in the substrate;
a degree of vacuum measuring means in the suction system for measuring the degree of vacuum in the suction system;
an adjusting means in the suction system downstream of said measuring means for adjusting the degree of vacuum in the system; and
control means connected to said adjusting means for controlling the adjustment of said adjusting means for producing a predetermined pattern of gradual change of suction in said suction system which should produce a predetermined degree of vacuum, said pattern being according to the positions, number and sizes of holes in a substrate to which paste is being applied on said table.
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Abstract
A screen printing machine has a table on which a substrate is to be put, a substrate adjusting device on the table to adjust the position of the substrate on the table, a screen plate capable of being placed on the table, a squeegee movable on the plate, a suction unit connected with the table to apply suction to the substrate through through holes of the substrate, a measuring device arranged in the suction unit to measure the degree of vacuum in the suction unit, and an adjusting device arranged in the suction unit to adjust the degree of vacuum.
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Citations
6 Claims
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1. A screen printing machine comprising:
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a table on which a substrate is to be put; a substrate adjusting means on said table for adjusting the position of a substrate on the table; a screen plate movable onto the table over a substrate; a squeegee movable on the plate for applying a paste to the substrate; a suction system connected with said table for applying suction to a substrate and through holes in the substrate; a degree of vacuum measuring means in the suction system for measuring the degree of vacuum in the suction system; an adjusting means in the suction system downstream of said measuring means for adjusting the degree of vacuum in the system; and control means connected to said adjusting means for controlling the adjustment of said adjusting means for producing a predetermined pattern of gradual change of suction in said suction system which should produce a predetermined degree of vacuum, said pattern being according to the positions, number and sizes of holes in a substrate to which paste is being applied on said table. - View Dependent Claims (2, 3, 4, 5, 6)
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Specification