hydraulic motor injection mould

hydraulic motar The invention relates to an injection mould provided with a hydraulic motor thread return mechanism protection device. The injection mould comprises an upper mould, a lower mould, a power component, a thread mold core for molding product threads, and a transmitting assembly, wherein the lower end of the thread mold core is provided with a thread bushing having a guide function in a matching way, and the thread mold core can conveniently move along the axial direction through the thread bushing; the thread bushing is fixed in the lower mould; a driven gear is fixed on the thread mold core, and linkage is realized between the driven gear and the power component by the transmitting assembly; when the mould is opened and closed, and the thread mold core reaches one of two limiting positions of the upper end and the lower end in the power transfer process, large resistance is applied to the transmitting assembly, and an upper rotating sleeve and a lower rotating sleeve which are arranged on the transmitting assembly slip and get away from the transmitting assembly, so that power is cut off in time, all the parts are prevented from being damaged or broken by vibration, the thread mold core is prevented from being very tight with a mold kernel or the thread bushing when moving up and down, the service life of the mould is effectively guaranteed, and the maintenance cost is lowered. The injection mould belongs to the technical field of mould equipment.