Method and apparatus for removing wrapped yarn group on package bobbin end

An apparatus for removing a wrapped yarn coil of an initial yarn portion of a package;

• said wrapped yarn coil being wound on a bobbin while being gripped by a slit-like groove formed on the bobbin, and being followed by a transfer tail yarn;
• comprising:
• a driving means for rotating the package along an axis of the package to unwind the wrapped yarn coil,
• a cutting means for severing the wrapped yarn coil to produce two severed ends at a position on a bobbin end in which a transfer tail yarn exists,
• a yarn suction means for holding one end of said two severed ends of the wrapped yarn coil by suction,
• a seal delivery means for fixing one end of the transfer tail yarn to the bobbin end by adhering a seal on the end of the transfer tail yarn, and
• a yarn twisting means for gripping the one end with a gripper and rotating the gripper away from the bobbin, as the bobbin is rotated by the driving means to unwind the coil from the slit-like groove.

A method for removing a wrapped yarn coil of an initial yarn portion of a package;

• said wrapped yarn coil being wound on a bobbin while being gripped by a slit-like groove formed on the bobbin end along a peripheral circle of the bobbin, and being followed by a transfer tail yarn;
• comprising the steps of
• severing the wrapped yarn coil to produce two severed ends at a position on the bobbin end in which the slit-like groove does not exist,
• while holding the two severed ends of the wrapped yarn coil by suction, gripping the two severed ends with grippers, and
• removing the wrapped yarn coil from the slit-like groove along the periphery of the bobbin while rotating the grippers to impart a twist to the wrapped yarn coil held by the grippers.

A method for removing a wrapped yarn coil of an initial yarn portion of a package;

• said wrapped yarn coil being wound on a bobbin while being gripped by a slit-like groove formed on the bobbin end along a peripheral circle of the bobbin, and being followed by a transfer tail yarn;
• comprising the steps of:
• severing the wrapped yarn coil to produce two severed ends at a position on the bobbin end in which the slit-like groove does not exist,
• holding one end of said two severed ends of the wrapped yarn coil by suction,
• gripping the one end with a gripper,and
• rotating the gripper to impart a twist to the yarn coil and displacing the gripper away from the bobbin, as the bobbin is rotated to unwind the yarn coil from the slit-like groove.