Yarn end aspiration apparatus
AssigneeW. Schlafhorst AG & Co.
InventorHelmut Kohlen
Life of this patent
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Abstract
An apparatus for pneumatically aspirating a yarn end from a spinning cop (15) with a suction nozzle (33) whose working position is adjustable has a housing (16) defining a vertical aspirating slit (19) over which a sealing belt (31) is disposed. An air passage (32) is formed in the belt (31) with the suction nozzle (33) fastened on the belt (31) about the passage (32). The belt (31) is selectively displaceable between a sealing position completely closing the aspirating slit (19) in the housing (16) and various aspirating positions wherein the air passage (32) of the belt (31) is in communication with the aspirating slit (19) of the housing (16) to apply suction through the nozzle (33) to initiate an effective, yet gentle loosening of a yarn end (46) from the conical windings (43) or the surface area of a spinning cop (41).
Claims18
Apparatus for pneumatically aspirating a yarn end from a spinning cop adapted for use with spinning cops having yarn windings of different thicknesses, the apparatus comprising:
- a housing defining an interior chamber and a generally vertical aspirating slit opening into the chamber,
- means for applying a suction source to the interior chamber of the housing,
- a belt sealably disposed over the aspirating slit of the housing and having an air passage formed through the belt and a nozzle affixed outwardly to the belt about the air passage, and
- a drive for displacement of the belt relative to the housing between a sealing position wherein the aspirating slit is closed by the sealing belt, and at least one aspirating position wherein the air passage of the belt is in communication with the aspirating slit of the housing to apply suction through the nozzle.
Dependencies are inferred from the claim text.