JPS5553542A - Mechanism for cooling mold - Google Patents

Mechanism for cooling mold

Info

Publication number
JPS5553542A
JPS5553542A JP12510878A JP12510878A JPS5553542A JP S5553542 A JPS5553542 A JP S5553542A JP 12510878 A JP12510878 A JP 12510878A JP 12510878 A JP12510878 A JP 12510878A JP S5553542 A JPS5553542 A JP S5553542A
Authority
JP
Japan
Prior art keywords
boss
cooling
beryllium
copper
mold
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP12510878A
Other languages
Japanese (ja)
Other versions
JPS598322B2 (en
Inventor
Shigeo Sasaki
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP12510878A priority Critical patent/JPS598322B2/en
Publication of JPS5553542A publication Critical patent/JPS5553542A/en
Publication of JPS598322B2 publication Critical patent/JPS598322B2/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • B29C45/72—Heating or cooling
    • B29C45/73—Heating or cooling of the mould
    • B29C45/7337—Heating or cooling of the mould using gas or steam
    • 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
    • B29C45/40—Removing or ejecting moulded articles
    • B29C45/4005—Ejector constructions; Ejector operating mechanisms
    • B29C45/401—Ejector pin constructions or mountings
    • B29C2045/4026—Ejectors with internal cooling
    • 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
    • B29C45/0025—Preventing defects on the moulded article, e.g. weld lines, shrinkage marks

Abstract

PURPOSE:To provide the subject mechanism capable of obtaining a molded article of excellent quality and of shortening the molding cycle, wherein a beryllium-copper mold cooling mechanism is provided at the boss for fitting a deep-frame Braun tube, and cooling air is passed through a boss shaft pin. CONSTITUTION:A lines is formed with the outer diameter of a circular rib 13 around the periphery of the fitting boss of a metal mold main body 1, and the entire part of the liner is formed into a beryllium-copper cooling body 14 of beryllium-copper thereby to cool the molds of the reinforcing rib and boss outer diameter. Cooling water 20 is introduced from the pipe disposed in a movable mold base 10 into a groove 17 provided at the outer wall of the cooling body 14 to cool the entire part of beryllium-copper excellent in thermal conductivity. Water leakage is checked by an O-ring 15. For the mold cooling of the boss shaft pin 16, cooling air 21 is directly extruded through a pipe provided in the movable mold base 10, and passed through the boss shaft pin 16, thereby to suppress the rise of the mold temperature.
JP12510878A 1978-10-13 1978-10-13 Molded cooling mechanism Expired JPS598322B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12510878A JPS598322B2 (en) 1978-10-13 1978-10-13 Molded cooling mechanism

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12510878A JPS598322B2 (en) 1978-10-13 1978-10-13 Molded cooling mechanism

Publications (2)

Publication Number Publication Date
JPS5553542A true JPS5553542A (en) 1980-04-19
JPS598322B2 JPS598322B2 (en) 1984-02-24

Family

ID=14902038

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12510878A Expired JPS598322B2 (en) 1978-10-13 1978-10-13 Molded cooling mechanism

Country Status (1)

Country Link
JP (1) JPS598322B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1661684A2 (en) * 2004-11-26 2006-05-31 Hitachi Industrial Equipment Systems Co. Ltd. Ejector with internal fluid path and moulding method
CN109228174A (en) * 2018-09-20 2019-01-18 昆山弘正电子科技有限公司 The injection mold of display rear cover and the Shooting Technique of display rear cover

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6053144A (en) * 1983-08-30 1985-03-26 ゼンミ株式会社 Sanitary napkin

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1661684A2 (en) * 2004-11-26 2006-05-31 Hitachi Industrial Equipment Systems Co. Ltd. Ejector with internal fluid path and moulding method
EP1661684A3 (en) * 2004-11-26 2006-09-06 Hitachi Industrial Equipment Systems Co. Ltd. Ejector with internal fluid path and moulding method
US7591643B2 (en) 2004-11-26 2009-09-22 Hitachi Industrial Equipment Systems Co., Ltd. Mold with ejector pin cooling
CN109228174A (en) * 2018-09-20 2019-01-18 昆山弘正电子科技有限公司 The injection mold of display rear cover and the Shooting Technique of display rear cover

Also Published As

Publication number Publication date
JPS598322B2 (en) 1984-02-24

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