System for manufacturing composite material by vacuuming and resin injection and the method for manufacturing the same

A system for manufacturing composite material by vacuuming and resin injection, comprising:

• a mold having a seal portion;
• a left connector and a right connector connected to two lateral sides of the mold respectively;
• a first vacuum pumping device being connected to the right connector through a vacuum piping having a first valve;
• a vacuum gauge being connected to the piping between the first valve and the right connector;
• a fiber being placed into the cavity of the mold;
• a heater and cooler being arranged in the mold;
• a pressure tank containing resin therein being connected by a top piping and a bottom piping on an upper side and a lower side thereof, respectively;
• the bottom piping being connected to the left connector through a fourth valve so that the resin inside the pressure tank can be pushed into the mold through the bottom piping;
• the top piping having two branches connected to a second vacuum pumping device and a pressure source respectively;
• the second vacuum pumping device being isolated from the pressure tank by a second valve;
• and the pressure source being isolated from the pressure tank by a third valve.