Apparatus for producing a lap for a carding machine
AssigneeTr/u/ tzschler GmbH & Co. KG
InventorFerdinand Leifeld
Life of this patent
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Abstract
An apparatus for forming a fiber lap to be processed by a carding machine includes a generally vertically oriented feed chute having generally parallel and vertically oriented front and rear walls. The chute has an opening at the top for receiving fiber tufts and an opening at the bottom for delivering a fiber lap. An air stream is introduced into the chute for flow in the direction of the bottom thereof. Air exit openings are provided in the zone of at least one of the walls allowing the air stream to leave the feed chute. The depth of the feed chute measured horizontally at the height level of the air exit openings varies along the chute width, whereby a fiber lap of varying thickness along the lap width is produced.
Claims7
In an apparatus for forming a fiber lap to be processed by a carding machine;
- said apparatus including a generally vertically oriented feed chute having generally parallel and vertically oriented front and rear walls, said chute having an opening at the top for receiving fiber tufts and an opening at the bottom for delivering a fiber lap;
- said feed chute having a width measured horizontally parallel to said walls and a depth defined by the distance between said walls;
- the fiber lap having a thickness determined by said depth;
- means for introducing a forced air stream into said chute for flow in the direction of the bottom thereof, and means for defining air exit openings in the zone of at least one of said walls allowing the air stream to leave the feed chute;
- the improvement wherein said depth measured at a height level of said air exit openings varies along said width for delivering a fiber lap of varying thickness along the lap width measured parallel to the width of the feed chute.
Dependencies are inferred from the claim text.