Automatic gate loading control for stuffer box texturing machine
AssigneeAllied Chemical Corporation
InventorsDick Charles Vermeer, Raymond Joseph Biron
Life of this patent
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Abstract
In stuffer box crimping of yarn, yarn is forced into a crimping chamber to form a wad and discharged with a discharge control being varied in response to sensing the position of the wad at the exit of the crimping chamber. The improvement of this invention comprises sensing the position of the yarn wad in the crimping chamber by issuing at least one jet of a fluid aligned to issue across the exit of crimping chamber and receiving the jet in an enlarged orifice communicating with a pressure sensor controller so the yarn wad unfolding point is sensed by interrupting the jet of fluid to thereby regulate the discharge controller with the pressure sensor controller.
Claims20
In a stuffer box crimping process for synthetic yarn comprising
- forcing said yarn into a crimping chamber to form a wad of said yarn in said crimping chamber, said chamber having a pressure regulated discharge means at the outlet thereof, and
- discharging said yarn from said crimping chamber, and
- controlling said discharge of said yarn from said chamber by regulating said pressure on said discharge means, said regulating pressure being varied in response to sensing position of said wad of said yarn at the exit of said crimping chamber and regulating said pressure with a pressure sensor controller,
- the improvement comprising
- sensing said position of said wad of said yarn in said crimping chamber by
- issuing at least one jet of fluid, said jet aligned to issue across the exit of said crimping chamber, and
- receiving said jet of fluid in an enlarged orifice communicating with said pressure sensor controller,
- so that the presence of said wad of said yarn is sensed by interrupting said jet of fluid by said wad, thereby changing pressure in said enlarged orifice to regulate said discharge means through said pressure sensor controller.
In an apparatus for stuffer box crimping of synthetic yarn comprising
- means to force said yarn into
- a crimping chamber having
- a regulated discharge means, and
- a pressure sensor controller to regulate the position of a wad of said yarn in said crimping chamber by regulating pressure on said discharge means,
- the improvement comprising
- at least one port to issue a jet of fluid, said port communicating with a source of pressure, said port aligned to issue said jet across the exit of said crimping chamber and said jet directed into
- an enlarged port to receive said jet of fluid, said enlarged port communicating with said pressure sensor controller,
- so that said wad of said yarn is sensed by interruption of said jet of fluid by said wad, thereby changing pressure in said enlarged port to regulate said discharge means through said pressure sensor controller.
Dependencies are inferred from the claim text.