| 摘要 |
Provided is a die, comprising a die block with at least four corner devices which are installed in pairs on two parallel side portion guide pieces, and vertically move relative to the side portion guide pieces according to sizes of a case to be formed. Each corner device is provided with a built-in chassis which is connected to an end piece; the end piece is connected to the side portion guide pieces. A module of each corner device moves from the end piece; a vertical plate is connected to the die block, and moves in a mode of horizontally and vertically parallel with the parallel side portion guide pieces. Lugs are pulled out from an inner surface of the vertical plate; rocker arms with mobile seats are hinged to the lugs to support case corner areas in the mobile seats in a case forming period. The periphery of the vertical plate is connected to a corner supporting piece beneath; a first pressure plate and a second pressure plate are connected to the corner supporting piece. The die block comprises fixing devices strategically distributed on the corner devices of a first die block to fix equipment components selected from extra, replaceable and changeable devices and modules supported by the corner devices, wherein equipment components correspond with corresponding case types. |
