Patent ID: 11866214
Assignee: TAKAZONO CORPORATION
Field: Handling (Mechanical engineering)
Classification: CPC B | IPC B

Claim 0:
1. A combination of a wound body and a drug packaging device that packages a drug using the wound body, a packaging material being wound into the wound body,
the wound body including a recording medium that stores a winding diameter information indicating a winding diameter of the packaging material in the wound body,
the drug packaging device comprising:
a drive unit configured to generate driving force rotating the wound body;
a conveyance unit configured to convey the packaging material unwound from the wound body along a conveyance path; and
a tension applying unit including a displacement member that is displaceable in a direction intersecting the conveyance path, a fixed position of the displacement member being set, the tension applying unit being configured to apply tension to the packaging material when the displacement member presses the packaging material,
wherein, during a fixed position return operation of the displacement member after the wound body is mounted on the drug packaging device, the drug packaging device reads the winding diameter information stored in the recording medium of the wound body, sets a rotation speed of the wound body based on the winding diameter information read, and then drives the drive unit so as to rotate the wound body at the rotation speed set to move the displacement member to the fixed position;
the drug packaging device further comprising a fixed position sensor configured to detect that the displacement member is located at the fixed position and a limit position sensor configured to detect that the displacement member is located a limit position farther from the conveyance path than the fixed position, wherein
in the case the fixed position sensor does not detect the displacement member when the fixed position return operation is started, the drug packaging device unwinds the packaging material from the wound body until either the fixed position sensor or the limit position sensor detects the displacement member, and then, if the fixed position sensor detects the displacement member, the fixed position return operation of the displacement member is ended, and, if the limit position sensor detects the displacement member, the drug packaging device winds the packaging material onto the wound body until the fixed position sensor that detects the displacement member no longer detects the displacement member and then unwinds the packaging material from the wound body until the fixed position sensor detects the displacement member, and then the fixed position return operation of the displacement member is ended, and
in the case the fixed position sensor detects the displacement member when the fixed position return operation is started, the drug packaging device winds the packaging material onto the wound body until the fixed position sensor no longer detects the displacement member and then unwinds the packaging material from the wound body until the fixed position sensor detects the displacement member, and then the fixed position return operation of the displacement member is ended.