| 摘要 |
PROBLEM TO BE SOLVED: To prevent defects from occurring to containers with overheat prevented by a method wherein a detecting means and a control means that control advance/retreat devices for moving vertically a plurality of heating devices provided in the circumferential direction at a rotary body and receiving devices that receive sealing members supplied to pressurizing parts of the heating devices and hold the sealing members with pressure are provided. SOLUTION: A plurality of heating devices 2 are provided at specified intervals in the circumferential direction at a rotary body 1, and each of the heating devices is attached through an advance/retreat device 3 to the rotary body 1, being hung down from a disk 12. A pressurizing part 14 heated by electric heat is attached to the lower end of the heating device, and the pressurizing force is kept constant with an elastic machine 15. The advance/ retreat devices 3 are interlocked with the heating devices 2, 2... and the heating devices 2, 2... are individually moved upward and downward therewith. A receiving device that receives and holds a sealing member at the pressurizing part 14 of the heating device 2 is incorporated in the heating device 2 with its suction port 17 provided, facing the exterior of the pressurizing part 14. In case where turning of the rotary body is stopped during processing, operations of the advance/retreat device 3 and the receiving device 4 are stuck together by detecting devices 5a, 5b and a control device 6, and the pressurizing part 14 is separated after the lapse of heating time, and thereby overheat can be prevented. |
