Patent Number: 6,192,795

Title: Screen printing apparatus with independent screen adjustment

Abstract: In one aspect, the present invention is an apparatus for microregistering a screen within a screen printing device, wherein the screen printing device has at least one pallet and a pallet drive mechanism for indexing the pallet. The apparatus includes a semi-stationary print head assembly which is selectively movable in an x-direction which is parallel to the path of the pallet and selectively lockable at a desired print location, the print head assembly including: a mechanism for registering the screen in a generally horizontal x-y plane, wherein angular displacement of the screen in a theta direction corresponds to rotation about a substantially vertical axis passing through the x-y plane; and, a mechanism for adjusting the orientation of the screen within the x-y plane with either a linear displacement in the y-direction or an angular displacement in the theta-direction, or both. Thus, adjustment of the screen relative to the pallet in the x-direction at the desired index location is accomplished independently of adjustment of the screen in either the y-direction or the theta-direction.

Inventors: D'Alessandro; Chris T. (Saddle Brook, NJ)

Assignee: Hix Corporation

International Classification: B41F 15/08 (20060101); B41F 015/36 ()

Expiration Date: 02/27/2018