An injection mold with adjustable opening stroke

Abstract

The invention discloses an injection mold with an adjustable opening stroke. The injection mold comprises an upper mold, a lower mold and an opening device; a rectangular driving groove is formed in the lower portion of the lower mold; two pairs of guide bars which are symmetrical left and right are arranged on the upper side wall of the driving groove in lifting manner; the upper ends of the guide bars are fixedly connected to the upper mold while the lower ends of the guide bars are hinged to a central connecting rod; the opening device comprises a double-head motor; output shafts on the left and right sides of the double-head motor are fixedly connected to a driving threaded rod; the other end of the driving threaded rod is pivoted to a side wall corresponding to the driving groove; thedriving threaded rod is in threaded connection to a movable supporting seat; the lower ends of the pair of central connecting rod on the left side are hinged to the front and back ends of the movablesupporting seat on the left side; the lower ends of the pair of central connecting rod on the right side are hinged to the front and back ends of the movable supporting seat on the right side; and alimiting lantern ring capable of moving left and right sleeves the driving threaded rod. In an opening process, the upper and lower molds are slowly separated, so that the forming quality of a workpiece is facilitated, and the opening stroke can be adjusted, so that the workpiece is conveniently taken out.

Description

technical field [0001] The invention relates to the technical field of injection molds, in particular to an injection mold with adjustable mold opening stroke. Background technique [0002] Injection mold is a tool for producing plastic products; it is also a tool for giving plastic products complete structure and precise dimensions. Injection molding is a processing method used in the mass production of certain complex-shaped parts. Specifically, it refers to injecting the heated and melted plastic into the mold cavity under high pressure from the injection molding machine, and after cooling and solidifying, a molded product is obtained. [0003] For general injection molds, manual mold opening is often used. The manual mold opening process is not easy to control. Too fast or too slow mold opening speed will have an adverse effect on the mold. Although machine mold opening can effectively solve the problem of mold opening speed control, but The structure of the control me...

AI Technical Summary

Problems solved by technology

[0003] For general injection molds, manual mold opening is often used. The manual mold opening process is not easy to control. Too fast or too slow mold opening speed will have an adverse effect on the mold. Although machine mold opening can effectively solve the problem of mold opening speed control, but The structure of the control mechanism is often complex, and the cost of mold opening is relatively high

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