Stork Brabant B.v.

Jacobus F Peters

Gerardus H Van Mondfrans

A multicolor rotary screen printing machine comprising a number of parallel cylinder stencils which are located in a common plane and which are each provided, on the inside, with a squeegee consisting of a hollow tube with a squeegee blade, has a novel squeegee suspension. The ends of each squeegee, which project outside the stencil, are suspended from one end of each of a pair of arms, the arms each being guidably bearing-mounted along an individual screw spindle located parallel to the common plane and the screw spindles each being provided with individual driving means, such as individually controlled electric motors and gears. It is thus possible to alter the position of the squeegee within the stencil and to automate the adjustment of the squeegee during operation with the use of suitable control means acting on said individual drive means. There is a squeegee holder which consists of two hingingly interconnected sections, the angle of which with respect to one another can be varied by means of a worm and wheel segment device, through which the angle of the squeegee within the stencil can be changed.

Multicolor rotary screen printing machine with an improved squeegee

A magnetic beam for a roller squeegee of a rotary screen printing installation including an elongated upper plate on the underside of which a number of magnet coils are attached. The upper plate is connected to a lower container which extends over virtually the entire length of the upper plate and surrounds the magnet coils. The lower container has a projecting journal at each end which rests on a vertically adjustable stop connected to the frame of the printing installation. In order to avoid warping of the magnetic beam as a result of temperature differences, the upper plate is connected to the lower container in such a manner that the upper plate can expand freely in the longitudinal direction. The lower plate has a stop member in its center region between the journals which member interacts with an adjustable stop of the frame. By stressed in order to make the beam insensitive to stresses resulting from temperature differences.

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Ottersum, Netherlands

Jacobus F Peters