Doffer device having a double gripper for a spinning machine
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United States of America Patent
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Mar 23, 2021
Grant Date -
Nov 15, 2018
app pub date -
Nov 8, 2016
filing date -
Nov 19, 2015
priority date (Note) -
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status (Latency Note)
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Abstract
A doffer device for a spinning machine includes a plurality of gripping devices, each gripping device having a rotatable gripping unit. Each gripping unit includes a bobbin gripper that grips a full bobbin and a tube gripper that grips an empty tube. Each gripping unit is rotatable between a gripping position in which the full bobbin can be gripped on the spindle and a placement position in which the empty tube can be placed on the spindle. A rotating device is configured with the gripping units to rotate the gripping units about an axis of rotation such that neighboring ones of the gripping units are rotated with a time lag relative to one another. The rotating device is driven by a toothed belt.
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