Erhard & Leimer Kg

Erhardt Leimer Gmbh

Erhardt & Leimer Kg

Franz Mair

Wolfgang Lonner

Ludwig Zerle

Jurgen Peschke

An apparatus for guiding and spreading a textile web comprising spreading rollers extending across the full width of the web and mounted on a unit in the support for the spreading rollers, pairs of fingerlike guide rollers which can be inclined toward one another in the direction of travel of the web. The holders and the two pairs of guide rollers can be moved together and apart by a threaded spindle.

Apparatus for the spreading the guiding of a web of flexible material

There is disclosed a device for guiding and spreading out a moving material web, which includes a spreading station, a guide station and at least one edge-sensing system downstream from the guide station. The spreading station is arranged downstream from the guide station, so that very high web speeds can be realized because the web corrections are executed very gently and without whipping up the correcting pulses.

Guiding and spreading device

An elongated knit web is flattened and guided by an apparatus having a support frame which extends longitudinally in a plane and which has an upstream and a downstream end. A pivot supports this frame for pivoting about a pivot axis transverse to the plane at the upstream end. A pair of transversely extending and longitudinally spaced spreader rollers are provided on the frame adjacent the upstream end and each has a pair of screwthread formations of opposite hand, these spreader rollers being driven to spread out the web transversely. A pair of transversely extending and longitudinally spaced guide rollers are provided on the frame between the spreader rollers and the downstream end, these guide rollers being freely rotating and having surfaces which are made to adhere to the web to prevent its edges from curling up. A control system pivots the frame about its pivot axis to position the edges of the exiting web.

Apparatus for flattening and guiding an elongated web

A sheet workpiece having an edge bent over on one face of the workpiece towards the center of the workpiece is continuously displaced in a transport direction over a flat support surface that lies against the other face of the workpiece at the bent-over edge. Compressed air is blown from a guide in a flow direction extending transverse to the transport direction, outwardly from the workpiece center, and generally parallel to the surface so as to blow this bent-over edge flat. A plurality of nozzles inclined slightly downwardly toward the surface and backwardly in the transport direction may be employed, as a single elongated nozzle producing a band-shaped current of air may be used, or a plurality of nozzles spread out in a two-dimensional array. Such a flow of air may also be directed from both faces at the workpiece edge in order to flatten out this edge no matter which way it is bent over. When a plurality of nozzles are employed, each nozzle may be formed as a plug secured in a support plate having an inclined outlet passage and rotatable in order to vary the flow direction.

Apparatus for flattening the bent-up edge of a sheet workpiece

A sheet workpiece having an edge bent over on one face of the workpiece towards the center of the workpiece is continuously displaced in a transport direction over a flat support surface that lies against the other face of the workpiece at the bent-over edge. Compressed air is blown from a guide in a flow direction extending transverse to the transport direction, outwardly from the workpiece center, and generally parallel to the surface so as to blow this bent-over edge flat. A plurality of nozzles inclined slightly downwardly toward the surface and backwardly in the transport direction may be employed, as a single elongated nozzle producing a band-shaped current of air may be used, or a plurality of nozzles spread out in a two-dimensional array. Such a flow of air may also be directed from both faces at the workpiece edge in order to flatten out this edge no matter which way it is bent over. When a plurality of nozzles are employed each nozzle may be formed as a plug secured in a support plate having an inclined outlet passage and rotatable in order to vary the flow direction.

A sheet workpiece having an edge bent over on one face of the workpiece towards the center of the workpiece is continuously displaced in a transport direction over a flat support surface that lies against the other face of the workpiece at the bent-over edge. Compressed air is blown from a guide in a flow direction extending transverse to the transport direction, outwardly from the workpiece center, and generally parallel to the surface so as to blow this bent-over edge flat. A plurality of nozzles inclined slightly down toward the surface and backwardly in the transport direction may be employed, as a single elongated nozzle producing a band-shaped current of air may be used, or a plurality of nozzles spread out in a two-dimensional array. Such a flow of air may also be directed from both faces at the workpiece edge in order to flatten out this edge no matter which way it is bent over. When a plurality of nozzles are employed each nozzle may be formed as a plug secured in a support plate having an inclined outlet passage and rotatable in order to vary the flow direction.

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Augsburg, Germany

Franz Mair