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US 5,197,384 AGranted
Screen printer
AssigneeHitachi Techno Engineering Co., Ltd.
InventorsSatoshi Yawata, Haruo Mishina
Life of this patent
Estimating the term…
Abstract
A screen printer which has a cleaning device for cleaning a mask which is formed with at least a hole of a printing pattern. The cleaning device includes a spatula member and an airstream generating device. The spatula member is moved along the surface of the mask in contact therewith so as to scrape ink adhered to the mask surface. The airstream generating device generates an airstream passing through the hole of the mask so as to remove ink within the hole of the mask.
Claims19
A screen printer comprising:
- a mask having at least a hole of a printing pattern;
- squeegee means, movable in contact with a first surface of said mask, for printing a pattern of ink on a substrate by causing ink to be squeezed through said hole of said mask;
- spatula means, movable in contact with a second surface of said mask, opposite said first surface, for removing ink adhered to said second surface of said mask;
- and
- means, movable with said spatula means, for generating an airstream passing through said hole of said mask to remove ink within said hole;
- said airstream generating means comprising air suction means disposed on the same side as said spatula means with respect to said mask;
- and
- said air suction means includes a suction port disposed forward of said spatula means in a direction of movement thereof, said suction port being formed integrally with said spatula means to be moved together with said spatula means, said suction port being positioned at a fixed distance from said mask when removing ink from said mask.
5 more elements
A screen printer comprising:
- a mask having at least a hole of a printing pattern;
- squeegee means, movable in contact with a first surface of said mask, for printing a pattern of ink on a substrate by causing ink to be squeezed through said hole of said mask;
- spatula means, movable in contact with a second surface of said mask, opposite said first surface, for removing ink adhered to said second surface of said mask;
- and
- means, movable with said spatula means, for generating an airstream passing through said hole of said mask to remove ink within said hole;
- wherein said airstream generating means comprises air spray means which is disposed on an opposite side of said mask with respect to said spatula means.
3 more elements
Dependencies are inferred from the claim text.