Apparatus for regulating supply quantity of textile fibers to a weighing device
AssigneeKabushiki Kaisha Toyoda Jidoshokki Seisakusho
InventorsHideo Hidaka, Setsuo Yamamoto
Life of this patent
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Abstract
In a spinning machine having a weighing device for receiving fiber tufts from a hopper thereof and for intermittently supplying a block of fiber tufts of a predetermined quantity to a subsequent process by repeated unit supply operations, the gauge between a lifting apron and an evener cylinder of the opening machine is reduced to a predetermined small gauge during a last period of each unit supply operation. Further the driving speed of the lifting apron is capable of selectively reducing during the above-mentioned last period and the supplying operation is continued until the quantity of fiber tufts accumulated in a weigh pan of the weighing mechanism becomes a predetermined final quantity for the unit supply operation.
Claims10
In a spinning machine comprising a hopper for receiving textile fiber material and a weighing device for supplying a predetermined quantity of opened fiber tufts to a subsequent process by intermittently repeated unit operations, a lifting apron for carrying fiber tufts supplied into said hopper towards an upper portion of said spinning machine and an evener cylinder for preventing possible supply of fiber tufts having excess size to said weighing device and a doffer for stripping fiber tufts carried to a top portion of said lifting apron towards said weighing device, a feed chute disposed above said weighing device, a shutter disposed at a bottom aperture of said feed chute capable of closing said bottom aperture, said evener cylinder disposed at a position adjacent to a top portion of said lifting apron, a driving means for driving said lifting apron, said weighing device provided with a weigh-pan, an apparatus for regulating a supply quantity of fiber tufts to said weigh-pan in each unit supply operation, comprising in combination, means for selectively reducing a gauge between said lifting apron and said evener cylinder, a first device for actuating said gauge reducing means at a time of shortly before the completion of said unit supply operation, a second device for substantially opening said weigh-pan and closing said shutter when a predetermined final quantity of fiber tufts are accumulated in said weigh-pan during said unit supply operation.
In a spinning machine comprising a hopper for receiving textile fiber material and a weighing device for supplying a predetermined quantity of opened fiber tufts to a subsequent process by intermittently repeated unit operations, a lifting apron for carrying fiber tufts supplied into said hopper towards an upper portion of said spinning machine and an evener cylinder for preventing possible supply of fiber tufts having excess size to said weighing device and a doffer for stripping fiber tufts carried to a top portion of said lifting apron towards said weighing device, a feed chute disposed above said weighing device, said evener cylinder disposed at a position adjacent to a top portion of said lifting apron, a driving means for driving said lifting apron, said weighing device provided with a weigh-pan, an apparatus for regulating a supply quantity of fiber tufts to said weigh-pan in each unit supply operation, comprising in combination, means for selectively reducing a gauge between said lifting apron and said evener cylinder, means for actuating said gauge reducing means, a first device for sensing a predetermined intermediate quantity of fiber tufts accumulated in said weigh-pan at a time of shortly before the completion of said unit supply operation, a second device for sensing a predetermined final quantity of fiber tufts accumulated in said weigh-pan during said unit supply operation, an actuation mechanism for opening, said weigh-pan by a signal issued from said second sensing device, means for selectively disconnecting said first sensing device electrically connected to said means for actuating said gauge reducing means, whereby, when said first sensing means detects said predetermined intermediate quantity of fiber tufts said actuating means actuates motion of said gauge reducing means, by a signal issued from said first sensing device, and when said second sensing means detects said predetermined final quantity of fiber tufts, said weigh-pan is opened by a signal issued from said second detecting device.
Dependencies are inferred from the claim text.