Mould capable of automatically breaking sprue

• Main Authors: GENG CHUNJIE, YU GAOKE, CHAI HAIQIANG
• Format: Patent
• Language: Chinese; English
• Published: 02.12.2022
• Subjects: AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING; PERFORMING OPERATIONS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR; SHAPING OR JOINING OF PLASTICS; TRANSPORTING; WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL

The utility model discloses a mould capable of automatically breaking a sprue, which comprises a movable mould and a fixed mould, a first cavity and a second cavity are respectively arranged on the movable mould and the fixed mould, the first cavity and the second cavity are combined to form a product cavity after the movable mould and the fixed mould are assembled, the mould further comprises an ejector pin, an ejector pin sleeve and an automatic breaking insert, a first runner is arranged on the movable mould, and a second runner is arranged on the second runner. The ejector pin sleeve is installed on the movable mold, the ejector pin is arranged in the ejector pin sleeve in a sliding mode, the automatic snapping insert is arranged on the movable mold and located on one side of the ejector pin, a second runner is arranged in the automatic snapping insert and is of an arc structure, the feeding end of the second runner is connected with the first runner, and the discharging end of the second runner is connec