Cloeren Incorporated

Premier Dies Corporation

Other

Nordson Corporation

Avery Dennison Corporation

Robert L Druschel

Luigi Sartor

Bert R Potjer

Steven D Jonjak

Steven Jonjak

A coating die having a shut-off bar positioned to stop the flow of coating material within the flow channel of the die when the shut-off bar is in the closed position. In the closed position, the shut-off bar extends across the material flow channel, blocking flow of coating material therethrough. The shut-off bar moves essentially orthogonal to the direction of material flow. In some embodiments, the flow channel includes a shoulder against which the shut-off bar physically seals, the seal being essentially transverse or orthogonal to the direction of the material flow channel. Coating dies having a shut-off bar are particularly suited for patch coating applications.

Patch coating die

An extrusion die or extruder having a flexible lip that is moveable by a geared mechanism. A shaft is operably connected to at least one gear, which in turn is operably connected to a movable lip of the extruder. Rotation of the shaft results in movement of the extruder lip.

Flexible lip extruder, and methods of extruding material

Flexible lip extruder, and methods

An extrusion apparatus including a flex lip and a reciprocally movable actuator bar for adjusting the lip gap, is disclosed. Axial movement of the actuator bar advantageously results in control across the full width of the lip gap. In one aspect of the invention, a handwheel or motor is positioned opposite the output end of the extrusion apparatus. In another aspect of the invention, a rotatable shaft of a control assembly is beneficially disposed generally perpendicular to direction of movement of the actuator bar, and advantageously a portion of the shaft is received within an endplate of the extrusion apparatus. In a variation, a control assembly simultaneously exerts a pulling force on one end of the actuator bar and a pushing force on the opposite end of the actuator bar.

Controlling assembly for adjusting lip gap

An extrusion apparatus including a flexible lip for adjusting the lip gap, and including reciprocally movable members in operative contact with the flexible lip is described. Beneficially, a generally laterally movable actuator bar is connected to angled slots of the reciprocally movable members by pin members rotatably mounted in bores of the actuator bar. Lateral movement of the actuator bar advantageously results in lip gap control across the full width of the lip gap. Use of reciprocally movable members with slots of selected angles provides for profiling the lip gap. Also provided is an advantageous mechanism for controlling movement of the actuator bar and reciprocally movable members.

Apparatus for adjusting die lip gap

An improved applicator die for alternately depositing different liquid coating materials on a moving web comprises a die body having switch bars for opening and closing respective flow passageways for supplying the different liquid coating materials to an elongated coating orifice from respective manifolds. The switch bars, flow passageways and manifolds are substantially as wide as and substantially parallel to the coating orifice of the die whereby changeover between different coating materials can be made very rapidly.

Growing community of inventors

Eau Claire, WI, United States of America

Robert L Druschel