Oil-electricity hybrid injection molding machine

An oil-electricity hybrid injection molding machine, comprising:

• a base;
• a feeding barrel, comprising a barrel body with a feeding cavity internally and a nozzle arranged at a front end portion of the barrel body, with a plastic raw material inlet arranged on the barrel body;
• a screw rod, extending along a length direction of the feeding barrel and with a rear end portion exposed out of the barrel body;
• and
• a power system, for driving the screw rod to rotate around its axis and/or move rectilinearly along its length direction,
• wherein, the power system comprises a power motor with an output shaft parallel to the screw rod, an injection unit and a feeding unit coaxially connected to the output shaft through a first clutch and a second clutch, respectively, and an oil pressure auxiliary unit, wherein the first clutch and the second clutch are arranged on the output shaft at interval, the oil pressure auxiliary unit comprises an auxiliary oil cylinder arranged parallel to the screw rod, and an energy accumulator connected to the auxiliary oil cylinder, and the injection unit is configured to drive the screw rod to move during injection, and the energy accumulator releases energy, and oil is filled into a rodless cavity of the auxiliary oil cylinder;
• an injection head plate, an injection second plate and an injection tail plate are arranged on the base, wherein the feeding barrel and the injection head plate are fixedly connected, the injection second plate is slidably arranged on the base and capable of moving with the screw rod along the length direction of the screw rod, the power motor, the injection unit and the feeding unit are arranged on the injection second plate, and the auxiliary oil cylinder is arranged between the injection second plate and the injection tail plate;
• two auxiliary oil cylinders are located on opposite sides of a centerline of the screw rod;
• the base comprises an injection table and pillars located on the injection table, wherein the injection table is square, with four pillars distributed at four corners of the injection table, and the power system is arranged on the pillars through two injection pull rods extending along the length direction of the screw rod;
• each of the two injection pull rods passes through two pillars located on the same side, the injection head plate, the injection tail plate, and the injection second plate are located between the two injection pull rods, each of the injection pull rods sequentially crosses the injection head plate, the injection second plate, and the injection tail plate on the same side, wherein the injection second plate is slidably arranged on the injection pull rods, and the injection head plate and the injection tail plate are positioned on the injection pull rods and are configured that a distance between the injection head plate and the injection tail plate remains unchanged;
• a first rod sleeve is arranged at one end portion of each of the injection pull rods, a second rod sleeve is arranged on the injection pull rod between two pillars on the same side, and an adjuster is provided to drive the injection pull rods to move along their length direction;
• the adjuster is a telescopic rod connected to the other end portion of each of the injection pull rods and extending in the same direction as the injection pull rod.