An internal pressurizing cylinder of a controllable internal pressurizing mold clamping device for blow molding machines belongs to the technical field of hollow plastic molding machinery. It includes a cylinder body, a left end cover, a pressurizing cylinder, a right end cover, a piston rod and a pressurizing piston. The left end cover is connected to the cylinder body and provided with an oil return hole for the cylinder cavity. The pressurizing cylinder is fixed at the right end of the cylinder body together with the right end cover, which is drilled with a mold clamping oil inlet communicated with the oil passage of the pressurizing piston. The right section of the piston rod is arranged inside the cylinder, and the pressurizing piston is installed in the cavity of the right end cover. The device is further equipped with a controllable internal pressurizing adjusting mechanism connected to the pressurizing cylinder and communicated with the pressure oil circuit. It delivers stable and controllable circulating pressurization performance with reliable overall structure.
Country Code: CN
Application Number: CN202211484798.2
