Large lens forming die

• Main Author: CAO BIBAO
• Format: Patent
• Language: Chinese; English
• Published: 02.06.2020
• Subjects: AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING; INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULARARTICLES; 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

A large lens forming die comprises a top plate (1), a pressing plate assembly (2), a bottom plate (3) and a die core assembly (4), the pressing plate assembly (2) is located between the top plate (1)and the bottom plate (3), a containing groove (20) is formed in the pressing plate assembly (2), and the die core assembly (4) is located in the containing groove (20); the mold core assembly (4) comprises a mold core (3), the injection mold comprises an upper mold core (41), a lower mold core (42), a sleeve (43) and an ejector pin (44), the upper die core (41) is right opposite to the lower die core (42), the lower die core (42) is located in the sleeve (43), the lower surface of the upper die core (41), the upper surface of the lower die core (42) and the inner wall of the sleeve (43) form aforming cavity (401), and the ejector pin (44) penetrates through the lower die core (42) and extends to the forming cavity (401). According to the forming die, the large lens can be ejected out through the ejector pin, a mov