Device for depositing synthetic fibers to form a nonwoven web
AssigneeOerlikon Textile GmbH & Co. KG
InventorsGalliano Boscolo, Hans-Holger Heesch
Life of this patent
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Abstract
The invention relates to a device for depositing synthetic fibers to form a non-woven web. The fibers are transported through a take-off nozzle by means of an air stream in the direction of a depositing belt. The device is provided with a guide duct for guiding fibers from the take-off nozzle to the depositing belt, said duct having a mobile retaining flap on one end of a longitudinal side that faces the depositing belt. To obtain a depositing area on the depositing belt that is separate from the environment as the position of the retaining flap is modified, the retaining flap is formed by a support and an elastic sealing lip, which is held in frictional contact with the depositing belt.
Claims23
A device for depositing synthetic fibers to form a non-woven web comprising
- a take-off nozzle through which the fibers are downwardly conveyed by means of an air stream,
- a depositing belt moveable in a conveying direction and underlying the take-off nozzle so as to receive the downwardly conveyed fibers and form a non-woven web thereupon,
- a guide duct comprising a pair of parallel duct walls extending between the take-off nozzle and the depositing belt and extending transverse to the conveying direction of the depositing belt, with at least one of the duct walls comprising a displaceable retaining flap which includes a support and an elastic sealing lip which is held in frictional contact with the depositing belt, and
- an exhaust duct disposed adjacent the underside of the depositing belt so as to be aligned below the guide duct.
A device for depositing synthetic fibers to form a non-woven web comprising:
- a take-off nozzle through which the fibers are downwardly conveyed by means of an air stream,
- a depositing belt moveable in a conveying direction and underlying the take off nozzle so as to receive the downwardly conveyed fibers and form a non-woven web thereupon,
- a guide duct comprising a pair of parallel duct walls extending between the take-off nozzle and the depositing belt and extending transverse to the conveying direction of the depositing belt, with at least one of the duct walls comprising a displaceable retaining flap which includes a support and an elastic sealing lip which is held in frictional contact with the depositing belt,
- an exhaust duct disposed adjacent the underside of the depositing belt so as to be aligned below the guide duct, the exhaust duct defining a suction opening below the depositing belt, with the suction opening being defined between a pair of cover plates, and
- a plurality of spacers positioned between the cover plates and the depositing belt so as to ensure a support and guidance of the depositing belt and so as to form a suction slot between lower sides of the spacers and the cover plates.
Dependencies are inferred from the claim text.