Hollow sealing product, injection compression molding mold and injection compression molding method

• Main Authors: ZHANG XINQIN, CHEN CANCHENG, LIN ZHUOHUI
• Format: Patent
• Language: Chinese; English
• Published: 15.04.2022
• Subjects: AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING; INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULARARTICLES; PERFORMING OPERATIONS; PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCESIN A PLASTIC STATE; 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 invention discloses a hollow sealing product, an injection compression forming mold and an injection compression forming method, the injection compression forming mold comprises a first mold base and a second mold base, the first mold base and the second mold base are closed to form a mold body with a mold cavity, and the mold cavity is used for forming the hollow sealing product with a sealing film; the fixed column is arranged in the mold cavity; and the compression assembly is arranged in the mold cavity and is opposite to the fixing column, a gap used for forming the sealing film is formed between the compression assembly and the fixing column, and the compression assembly can slide relative to the fixing column so as to compress the sealing film. A local pressurization mode is adopted, when the mold body is completely in a closed state and melt injected into the mold cavity shrinks due to cooling, the sealing film is further compressed inwards through the compression assembly, the sealing film is pre