| 摘要 |
Apparatus for stripping residual yarn from textile bobbins using an oscillating feed drum to feed bobbins singly to a position offset from the stripping position. Two pairs of centering forks transport the fed bobbin to a position in axial alignment with a plunger. Mounted with one pair of the centering forks is a pair of stripping blade support members, each having a pocket and a stripping blade having a plurality of symmetrically disposed stripping surfaces being slidably inserted in the pocket. The plunger is moved axially into engagement with the bobbin forcing it between the stripping blades by means including a drive link pivotally connected at one end to the plunger, a lever arm pivoted at one end about a fixed point spaced from the plunger axis and pivotally connected at its other end to the other end of the drive link, a connecting link pivotally connected at one end to the lever arm intermediate the ends thereof, and a crank arm rotatable about an axis disposed between the plunger axis and the lever arm pivot and pivotally connected at its outer end to the connecting link. The crank arm is rotated through the portion of its path farthest from the lever arm axis during the bobbin stripping stroke to a linearly aligned extension of the crank arm and connecting link, and through the portion of its path closest to the lever arm axis during its return stroke, thereby applying greater force to the plunger during the plunger stripping stroke and obtaining greater speed during the return stroke.
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