Roll transfer device and roll transfer method

A roll conveyance device for conveying a roll including a tubular core member and a sheet wound around a periphery of the core member from a mounting position set in advance to a target position, the roll conveyance device comprising:

• a transportation device including:
• a body;
• an arm including a proximal section connected to the body and a distal section that is relatively displaceable with respect to the proximal section;
• and
• a roll holding shaft, the roll holding shaft holding the roll in a state of extending in a predetermined direction from the distal section of the arm and being inserted into the core member of the roll;
• a controller configured to control the transportation device in such a manner that the roll holding shaft moves from the mounting position to the target position;
• and
• a re-hold mounting section disposed within a moving range of the roll holding shaft, the re-hold mounting section having a shape that allows the roll to be mounted in a state where both ends of an axial direction of the core member of the roll are open in order to change an insertion direction of the roll holding shaft into the core member of the roll,
• wherein the controller controls the transportation device in such a manner that the roll with the roll holding shaft inserted is mounted on the re-hold mounting section, the roll holding shaft is pulled out from the core member of the roll mounted on the re-hold mounting section to one side of the axial direction of the core member, and the roll holding shaft pulled out from the core member is inserted into the core member of the roll from the other side of the axial direction of the core member to hold the roll.