Device and method for producing a moulded part from a composite material

A device for manufacturing a molded part from a composite material comprising a mixture of reinforcing fibers and a resin, said device comprising:

• one mound in which a cavity configured for the disposition of reinforcing fibers is arranged;
• one counter-mound which, intended to press against the mound to close the cavity, is equipped with at least one channel for introducing the resin in the cavity, the introduction channel being adapted to be connected to at least one resin supply source;
• means for positioning and fixing the counter-mound on the mound;
• at least one means for depressurizing the cavity to ensure the introduction of the resin therein and at least one channel for extracting the resin in excess out of the cavity,
• wherein the mound and the counter-mound include respective support areas surrounding the cavity, these support areas comprising two peripheral seals offset with respect to each other, from the inside to the outside, delimiting a closing chamber which is connected to a vacuum source, said vacuum source depressurizing the closing chamber to ensure the plating of the counter-mound on the mound.