Apparatus for positioning and holding a screen carrier in a seri

Details Apparatus for positioning and holding a screen carrier in a seri Apparatus for positioning and holding a screen carrier in a seri

1981-12-16

1984-09-25

Coughenour, Clyde I.

Printing

Stenciling

Stencils

101383, 101DIG12, B41F 2704, B05C 1708

Patent

active

044730071

ABSTRACT:
The invention relates to apparatus for positioning and holding a screen carrier in a serigraphic machine. The positioning and holding apparatus is essentially constituted by two parallel grooves (21, 22) machined in the screen carrier (10) and cooperating stops and a side latch mechanism on the machine. The two grooves have at least one extremity opening on the same edge (C1) of the screen carrier. In these two grooves (21, 22) are respectively mounted the two stops (23, 24) which are designed to come respectively into contact with two fixed reference pins carried by the serigraphic machine. During insertion of the screen carrier, by sliding in its plane along two sides of the serigraphic machine, the two reference pins ride in the respective slots contacting the stops when the screen carrier is inserted fully. A latch locking arrangement is provided on the machine or maintaining and holding the screen carrier in position once the reference pins are in contact with the associated stops. Additional bores may be provided in the screen carrier on the axis of the grooves to cooperate with further reference pins and an articulated holding lever for assuring adjustment of the pattern of the screen with respect to the screen carrier before mounting of the screen carrier in the serigraphic machine. The invention applies notably to the manufacture of substrates of integrated circuits.

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