| 主权项 |
1. A delivery device that receives a continuously transported continuous sheet member at a receiving position, and while the continuous sheet member is transported, creates cut-workpieces of predetermined lengths from the continuous sheet member to hand over the cut-workpieces at a hand over position, comprising:
a rotating body that is driven to rotate about a rotation axis and the receiving position and the hand over position are set along the direction of rotation of the rotating body; a plurality of workpiece retaining portions that are provided to the rotating body at a predetermined angular interval in the direction of rotation, the workpiece retaining portions being supported by the rotating body in a state where a retaining surface that retains the continuous sheet member by suction faces outside in a direction of radius of gyration of the rotating body; a cutting member that is positioned at a predetermined location in the direction of rotation to oppose an outer circumferential face of the rotating body; a receiver that is provided to the rotating body at a part between workpiece retaining portions adjacently positioned in the direction of rotation, the receiver creating the cut-workpiece on the retaining surface of the workpiece retaining portion by sandwiching and cutting the continuous sheet member in cooperation with the cutting member when the continuous sheet member passes a location in the direction of rotation where the cutting member is positioned; and a driving unit that turns around the workpiece retaining portion about an axis of revolution that is in the direction of radius of gyration, wherein the receiver is circulated by the rotating body driven to rotate, along a perfect circular orbit with the rotation axis as a center, the workpiece retaining portion that is made to pass the location where the cutting member is positioned by the rotating body driven to rotate, changes an orientation of a longitudinal direction of the cut-workpiece by turning around the axis of revolution, and therealong the workpiece retaining portion hands over the cut-workpieces when passing the hand over position, the workpiece retaining portion is positioned so that a part of the workpiece retaining portion passes above the receiver when the workpiece retaining portion turns around the axis of revolution, a part of a face on a reverse side of the retaining surface in the workpiece retaining portion that passes above the receiver when turning around the workpiece retaining portion includes a recessed portion, a part of the retaining surface of the workpiece retaining portion that passes above the receiver when turning around the workpiece retaining portion has a cutout portion formed in communication with the recessed portion, the axis of revolution is provided at a center of a plane of the retaining surface, a contour shape of the workpiece retaining portion is in a shape having two sets of a pair of corner parts including two corner parts that are in a diagonal relationship with each other, only one pair of corner parts among the two sets of a pair of corner parts has the recessed portions and the cutout portions formed, an angle of turn of the workpiece retaining portion when changing the orientation of the longitudinal direction of the cut-workpiece is within a range of 85 to 95 degrees, and when the workpiece retaining portion returns from the hand over position to the receiving position by the rotating body driven to rotate, the workpiece retaining portion turns around in a direction opposite to that for the changing of the orientation of the cut-workpiece and by an angle same as the angle of turn so to return the orientation of the workpiece retaining portion to a state before turning around. |
