| 摘要 |
PURPOSE: To improve the yield rate of a press die machine by providing a pair of adjacent die assemblies including an upstream die assembly to form a lid portion and a downstream die assembly to form a bottom portion, and a controller to control the blank shifting with respect to a pair of adjacent die assemblies. CONSTITUTION: A front edge of a front portion 14 of a blank 12 contacts with a stop pin 60 and the blank 12 is positioned appropriately. A top portion of a die assembly 36 is descended and the front portion 14 of the blank 12 is formed by a first male punch 42 on a first container portion 22. The first container portion 22 is discharged by a first ejector 86 from a first female die cavity 54. Since a stop pin 60 is pulled in, the first container portion 22 is shifted by gravity to a second female die cavity 56, and the front edge of a rear portion 16 has contact with a static stop column 66 to be stopped. Thereafter, the rear portion 16 is positioned on the second female die cavity 12. Further, the stop pin 60 is shifted to the extended position to properly align a second blank 110. Concurrently with the press molding of the second container portion 26 on the rear portion 16 of the first blank 12, the first container portion 116 on the front portion 112 of a second blank 110 is formed by a first press machine. |
