Method for carrying out an automatic can changing process at a spinning station of a spinning machine, and spinning machine and movable can changer

A method for carrying out an automatic can changing process at a spinning station of a spinning machine where a sliver is delivered to a spinning device at the spinning station from a sliver can positioned underneath the spinning station, the method using a movable can changer that includes a can gripper, the method comprising:

• predefining and storing a value for a length of a sliver residue;
• once the predefined value for the length of the sliver residue length has been reached, separating the sliver while production of a yarn from the sliver is underway at the spinning station;
• clamping the sliver at the sliver can with a fixed clamp on the can changer;
• wherein separation of the sliver is performed by one of:
• with the can changer, removing the sliver can with the clamped sliver from the spinning station;
• or
• additionally clamping the sliver with a movable clamp on the can changer and moving the movable clamp relative to the fixed clamp.