Textilmaschinenfabrik Dr. Ernst Fehrer Aktiengesellschaft

Textilmaschinenfabrik Dr. Ernst Fehrer Aktienegesellschaft

Hellmuth Stachel

Ludwig Legl

Hannes Pum

Helmut Fuchs

Robert Strasser

G&uuml;nther Feyerl

An apparatus is described for needling a non-woven material with a support ( ) which receives at least one needleboard ( ) and is drivable in a reciprocating fashion both in the needle-penetration direction ( ) as well as the direction of passage ( ) of the non-woven material and on which are coupled the connecting rods ( ) of two oppositely drivable eccentric drives ( ) for the drive in the needle-penetration direction ( ) and on which there acts at least one additional eccentric drive ( ). In order to provide advantageous constructional conditions it is proposed that the connecting rods ( ) of the two oppositely drivable eccentric drives ( ) extend inclined in opposite directions with respect to the needle-penetration direction ( ), that the additional eccentric drive ( ) revolves synchronously with one of the two other eccentric drives ( ), that the connecting rod ( ) of the additional eccentric drive ( ) which is also linked to the support ( ) forms with the connecting rod ( ) of the synchronously revolving eccentric drive ( ) a parallelogram of links for guiding the support ( ) and that the eccentric drives ( ) which are drivable in opposite directions are provided with a phase shift (&phgr;) or are adjustable with respect to the mutual angular position.

Apparatus for needling a non-woven material

The description relates to a facility for needling of fleece with at least one needle board driven to and fro in stitching direction, which can be additionally driven in pendulum fashion in fleece feed direction ( ) by means of an eccentric drive, which is provided with a connecting rod ( ) articulated to a rocker arm ( ) and a connecting pitman ( ) to the needle board effective on this connecting rod assembly. To be able to easily adjust the rocking amplitude of the needle board in fleece feed direction ( ) it is suggested that the swivel bearing ( ) of the rocker arm ( ) is seated on a rotatable crank arm ( ) and that, for adjustment of the rocking amplitude of the connecting pitman ( ), the neutral rocking position of the rocker arm ( ) is adjustable via the crank arm ( ) between an end position essentially running in the direction of the connecting pitman ( ) and an end position running transverse thereto.

Facility for needling of fleece

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Vienna, Austria

Hellmuth Stachel