Compound mould in vacuum

The utility model discloses a compound mould in vacuum, including mold machine structure, trimming mechanism and clamping mechanism. Mold machine constructs including die holding frame and mould. Be equipped with outer cutter slot, interior cutter slot and vacuum pore on the mould. The die holding shelf location has vacuum pipe and the vacuum pipe interface that links to each other with the vacuum pore. Trimming mechanism includes cutter installation frame plate, cutter support column, interior side cut blade and outer trimming mechanism. Cutter support column, interior side cut blade and outer trimming mechanism install the below at cutter installation frame plate. Outer trimming mechanism includes the cut edge cylinder and the blade of cutting edge outward. Clamping mechanism is including pressing from both sides material frame and the last material frame that presss from both sides down. Go up the size phase -match that presss from both sides the material frame and press from both sides the material frame