Pneumatic registration apparatus

Details Pneumatic registration apparatus Pneumatic registration apparatus

B - Operations, Transporting

65

H

270/111, 270/17

B65H 9/00 (2006.01) B65H 5/22 (2006.01) G03B 27/62 (2006.01)

Patent

CA 1059167

PNEUMATIC REGISTRATION APPARATUS Abstract of the Disclosure In a first embodiment a stop having a plurality of ports is connected to and covers an end of a rectangular sleeve. In a region near the stop a narrow wall of the sleeve also has a plurality of ports. A nozzle coupled to a pump provides a flow of air into the other end of the sleeve and the air exits through the ports. With this arrangement, a rectangular sheet inserted into said other end of the sleeve is fluidly brought into registration with the narrow wall and stop. As the sheet is brought into registration fluid injected or drawn through holes in a wide wall of the sleeve is used to force at least a part of the sheet against one of the wide walls and the resulting friction serves to brake the traveling sheet, thereby minimizing impact forces between the sheet, the narrow wall, and the stop. In a second embodiment, similar to the first, the narrow wall and stop include internal projections against which an inserted sheet is registered. In a third embodiment, similar to the first, a manifold is coupled to the ports and a vacuum pump is coupled to the manifold to accelerate registration. In a fourth embodiment, similar to the third, the pumps are replaced with a reversible pump to register and discharge a sheet.

264174

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