US 4,453,465 AGranted

Web turning rod having air flow control means

AssigneeMAN Roland Druckmaschinen AG

InventorsAlbert Heller, Hubert Birkmair, Hermann Grauberger

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Abstract

To permit adjustment of air flow through air exchange openings (7,8,9;25,29) of a hollow outer turning rod tube (11,23,30), a plurality of inner tube elements (12,24,32) are axially located within the outer tube, and formed with part-circumferentially extending slits (13) in alignment with the air exchange openings. The inner tube elements can be, slectively, rotated for alignment of the slit (13) with the air exchange openings, or blocking of the air exchange openings by solid portions of the tube elements. Rotation can be effected by adjustment knobs (FIGS. 1-3: 17) having an inner gearing (16) engaging a side gearing (15) on the tube elements; by finger adjustment (FIG. 4) or by positioning wheels (FIG. 5: 34) in engagement with a roughened, stippled, ribbed or corrugated surface portion or region of the inner tube elements.

Claims11

Dependent claims

Web turning rod with controlled air flow openings, for deflecting the path of a web being passed thereover having

an outer hollow tube (11, 23, 30) having air supplied thereto under pressure different from atmospheric, and formed with air exchange openings (7, 8,9;
25, 29);
and means for selectively covering the air exchange openings and thereby controlled air flow therethrough
wherein, in accordance with the invention
a plurality of air tube elements (12, 24, 32) are provided, located within the outer tube (11, 23, 30),
said air tube elements being formed with air exchange openings (13) which are positioned at locations matching at least one of the air exchange openings (7,8, 9;25,29) in the outer tube;
and wherein the outer tube (11,23,30) is formed with additional openings (14,26,31) forming position adjustment openings for exposing a surface region of the respective tube elements of said plurality of tube elements to permit rotary positioning of said inner tube elements and, selectively, alignment of the air exchange openings (13) therein with the air exchange openings in the outer hollow tube.

4 more elements

Dependencies are inferred from the claim text.

Facts

Application: 06/486,399Filed 19 Apr 1983
Priority: DE 321547224 Apr 1982
Granted: 12 Jun 1984
Term ends: Not estimatedThe source records don’t support an estimate.

Classification6 codes

B65H 23/32
Longitudinally: arrangements for turning or reversing webs
B41F 13/06
Conveying or guiding webs through presses or machines: turning-bar arrangements
B65H 2406/1115
For handling material along a curved path, e.g. fluidised turning bar: pivoting around an axis perpendicular to the axis of the guided material
B65H 2406/14
Made only for exhausting gaseous medium: with selectively operated air supply openings