Injection mold opening and closing mechanism for fruit and vegetable box production

Abstract

The invention discloses an injection mold opening and closing mechanism for fruit and vegetable box production. The mechanism comprises a bottom plate and a fixing frame, wherein the fixing frame is welded at the two ends of the bottom plate, a hydraulic cylinder which is arranged in the vertical direction is installed on the inner wall of the top of the fixing frame, the piston end of the hydraulic cylinder is connected with a movable mold, a connecting plate is welded to the outer wall of the bottom end of the movable mold, the two ends of the bottom of the connecting plate are connected with vertically-arranged pressure rods in a welded mode, a fixed plate welded to the top of the bottom plate is arranged below the movable mold, the top of the fixed plate is movably connected with a lower mold, the two sides of the lower mold are both provided with grooves located at the top of the bottom plate, concave holes are formed in the bottoms of the grooves, and movable plates welded to theside wall of the lower mold are arranged above the two grooves. According to the mechanism, the mold closing can be facilitated, meanwhile, when the mold is opened, an injection molding part and thelower mold can be separated from each other, so that the injection molding part can be conveniently taken out, the production efficiency is greatly improved, and the production requirements are met.

Description

technical field [0001] The invention relates to the technical field of molds, in particular to an opening and closing mechanism of an injection mold used in the production of fruit and vegetable boxes. Background technique [0002] In the prior art, for injection molds that need to be core-pulled before the fixed mold, a hydraulic cylinder core-pulling mechanism is used to pull the core on the fixed mold. Before the mold is opened, the core-pulling slider set in the fixed mold cavity must be pulled out by the oil cylinder , and then the movable and fixed molds of the mold are allowed to open the mold. When the mold is closed, the movable and fixed molds must be closed first, and then the oil cylinder pushes the core-pulling slider to reset. However, the existing mold opening and closing structure is not convenient. For this purpose, we propose a mold opening and closing mechanism for injection molds used in the production of fruit and vegetable boxes. Contents of the inven...

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Problems solved by technology

[0002] In the prior art, for injection molds that need to be core-pulled before the fixed mold, a hydraulic cylinder core-pulling mechanism is used to pull the core on the fixed mold. Before the mold is opened, the core-pulling slider set in the fixed mold cavity must be pulled out by the oil cylinder , and then the movable and fixed molds of the mold are allowed to open the mold. When the mold is closed, the movable and fixed molds must be closed first, and then the oil cylinder pushes the core-pulling slider to reset. However, the existing mold opening and closing structure is not convenient. pick-up, for which we propose an injection mold opening and closing mechanism for the production of fruit and vegetable boxes

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