Ejector pin mechanism and sprue assembly

• Main Authors: QIU YONGTANG, HE LANGTAO
• Format: Patent
• Language: Chinese; English
• Published: 17.05.2024
• 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 an ejector pin mechanism and a sprue assembly. The ejector pin mechanism is arranged on the fixing mechanism and used for ejecting out the workpiece and the waste and breaking the workpiece and the waste, and the ejector pin mechanism comprises a movable part, a first ejector pin and a second ejector pin. The movable part is configured to be capable of reciprocating along a first direction or a direction opposite to the first direction. The first ejector pin is connected to the movable part and is configured to eject out the workpiece when moving along the first direction along with the movable part. The second ejector pin is movably connected to the movable part and is configured to eject waste materials out when moving along the first direction along with the movable part. The second ejector pin is configured to slide relative to the second ejector pin in the first direction when the movable part moves in the first direction, and then drive the second ejector pin to move in the f