| 摘要 |
This device assists with the disengagement from and installation of a press brake die on a press brake. It includes a die receiving and holding device having a surface along which are located a number of spaced apart openings, each opening terminating at the surface of the press brake, adjacent to any press brake die which is in the press brake. Devices for engaging the bottom of a die are located within each opening, normally below the surface, but capable of movement out of the opening and above the surface. When the devices for engaging the die are moved out of their openings they engage the bottom of any die which is present, and move it away from the surace of the press brake. The system includes a mechanism for activating the movement of each die engaging device above the surface, and also for moving each die engaging device back below the surface of the press brake. In preferred embodiments, the die receiving and holding device is a filler block having a groove for receipt of a tang on a female die, the devices for engaging the die are rollers, and the mechanism for activating the movement of each die engaging device includes a crankshaft having an accentric and connected to a roller, which crankshaft is capable of rotation in two directions by connection to a lever arm, which is in turn connected by rods which make up a linkage to the piston of a pneumatic cylinder and piston combination.
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