(1) The injection cylinder and the booster cylinder are connected in series. The pressure of the hydraulic oil in the injection cylinder is increased by the booster cylinder to achieve the standard injection force. This design effectively reduces the inner diameter of the shot sleeve, making the overall structure of the shot system small and compact.
(2) Adopt floating piston design structure. That is, when the injection system is pressurized, the hydraulic oil in the closed oil chamber between the floating piston and the injection piston is instantaneously pressurized by the booster cylinder to above 32 MPa, and the closed high pressure oil chamber is inside the injection cylinder, The external oil passages are separated, so the external oil pressure only maintains the system pressure of 12 MPa. This design structure reduces the set pressure of the oil pump, that is, reduces the power of the motor, which is not only conducive to energy conservation, but also conducive to the sealing of the hydraulic system.
