| 摘要 |
A stack mold in the present invention, having a fixing module, a movable module and a middle module, the middle module being arranged between the fixing module and the movable module, and the movable module and the middle module moving towards a direction being close to the fixing module until a first mold cavity is formed by the middle module and the fixing module and a second mold cavity is formed by the movable module and the middle module; the stack mold also comprises an injection molding runner; a main body central axis of a main runner of the injection molding runner is arranged in a central plane, being vertical to a direction of a movement axis of the movable module, of the middle module. In the present invention, materials enter an injection molding runner through a middle module and do not have to penetrate through a mold joint, thereby enabling pressure of each mold cavity to be more balanced; and meanwhile, the problem of seal leakage of the materials during mold opening is avoided. |
