Automatic demoulding mould of plastic pipe fitting with internal thread

The utility model relates to an internal thread automatic stripping mould for plastic tube and includes an inner bore core and an internal thread core housing in the jet molding die cavity formed between a fixed die plate and a movable die plate, an inner bore core mould emptier which drives the inner bore core to strip and an internal thread core housing mould emptier which drives the internal thread core housing to strip; the internal thread core housing is sleeved outside the inner bore core and the internal thread core housing and the inner bore core are matched with each other in a sliding manner; When the die is opened, the inner bore core mould emptier drives the inner bore core to move away from the jet molding die cavity and the internal thread core housing mould emptier drives the internal thread core housing to move away from the jet molding die cavity while rotating; when the die is closed, the inner bore core mould emptier drives the inner bore core and the internal thread core housing to move toward the jet molding die cavity. Compared with the existing internal thread automatic stripping mould for plastic tube, the utility model of internal thread automatic stripping mould for plastic tube can improve the production efficiency and reduce the cost.