Winder having winder shaft extraction device

A winder comprising:

• a frame plate;
• at least one roll receiver supported at one end by said frame plate of the winder in said a manner so as to be movable vertically and rotatable horizontally about a vertical axis and adapted to support at least one sheet roll from underneath at a sheet winding position, said roll receiver being capable of moving from a standby position under a winding shaft to a roll receiving position and from said sheet winding position to a position where the roll is removed, and
• at least one winding shaft extraction device for extracting and restoring a winding shaft from and to its operating position by moving said winding shaft in its axial direction, said roll receiver being movable upwardly from the standby position to the roll receiving position and the sheet roll being transferrable from the sheet winding position to the position where the roll is removed by horizontally rotating said roll receiver after the winding shaft is extracted from the roll by means of said shaft extraction device wherein operations of removing the roll and fitting a new core over the winding shaft can be carried out simultaneously.