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Publication date
Application filedfiledCritical
Priority to JP1975153810UpriorityCriticalpatent/JPS541503Y2/ja
Publication of JPS5266780UpublicationCriticalpatent/JPS5266780U/ja
Application grantedgrantedCritical
Publication of JPS541503Y2publicationCriticalpatent/JPS541503Y2/ja
B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
B29C45/17—Component parts, details or accessories; Auxiliary operations
B29C45/26—Moulds
B29C45/27—Sprue channels ; Runner channels or runner nozzles
B29C45/28—Closure devices therefor
B29C45/2806—Closure devices therefor consisting of needle valve systems
B29C45/281—Drive means therefor
B—PERFORMING OPERATIONS; TRANSPORTING
B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
B29C45/17—Component parts, details or accessories; Auxiliary operations
B29C45/26—Moulds
B29C45/27—Sprue channels ; Runner channels or runner nozzles
B29C45/28—Closure devices therefor
B29C45/2806—Closure devices therefor consisting of needle valve systems
B29C2045/2865—Closure devices therefor consisting of needle valve systems having position detecting means