JPS59169828A - Metal die for injection molding - Google Patents

Metal die for injection molding

Info

Publication number
JPS59169828A
JPS59169828A JP4375883A JP4375883A JPS59169828A JP S59169828 A JPS59169828 A JP S59169828A JP 4375883 A JP4375883 A JP 4375883A JP 4375883 A JP4375883 A JP 4375883A JP S59169828 A JPS59169828 A JP S59169828A
Authority
JP
Japan
Prior art keywords
cavity
resin
gate
state
synthetic resin
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
JP4375883A
Other languages
Japanese (ja)
Other versions
JPS6030532B2 (en
Inventor
Toshishige Taizawa
Yoji Katsuta
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.)
TATEMATSU MOLD KOGYO KK
TATEMATSU MOORUDO KOGYO KK
Original Assignee
TATEMATSU MOLD KOGYO KK
TATEMATSU MOORUDO KOGYO KK
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 TATEMATSU MOLD KOGYO KK, TATEMATSU MOORUDO KOGYO KK filed Critical TATEMATSU MOLD KOGYO KK
Priority to JP58043758A priority Critical patent/JPS6030532B2/ja
Publication of JPS59169828A publication Critical patent/JPS59169828A/en
Publication of JPS6030532B2 publication Critical patent/JPS6030532B2/ja
Expired legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17Component parts, details or accessories; Auxiliary operations
    • B29C45/38Cutting-off equipment for sprues or ingates
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29LINDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00Other particular articles
    • B29L2031/30Vehicles, e.g. ships or aircraft, or body parts thereof
    • B29L2031/3044Bumpers

Abstract

PURPOSE:To make molding work effective by a simple operation, by injecting synthetic resin in a molten state through heating into a cavity through a gate provided with a movable piece which is formed in a state of long hole along the longitudinal direction of the cavity. CONSTITUTION:Synthetic resin in a molten state through heating is injected into a cavity 3 from a duct 11 through a runner 9 and a gate 4 under a mating state of a stationary die 1 and a movable die 2. As the gate 4 has been formed in a long hole, the molten resin is filled up quickly in the cavity 3 by flowing into the cavity 3 without separating from each other in the cavity 3. At the time when the synthetic resin is turned into a semimolten state, the resin in the cavity 3 and the resin in the runner 9 are disconnected by making a movable piece 7 move through pulling by making a cylinder 6 act and closing a gate 4 by a valve part 10. Then a molded article is taken out by separating the movable die 2 from the stationary die 1 after the resin in the cavity has been cooled and solidified completely.
JP58043758A 1983-03-15 1983-03-15 Expired JPS6030532B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP58043758A JPS6030532B2 (en) 1983-03-15 1983-03-15

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP58043758A JPS6030532B2 (en) 1983-03-15 1983-03-15

Publications (2)

Publication Number Publication Date
JPS59169828A true JPS59169828A (en) 1984-09-25
JPS6030532B2 JPS6030532B2 (en) 1985-07-17

Family

ID=12672656

Family Applications (1)

Application Number Title Priority Date Filing Date
JP58043758A Expired JPS6030532B2 (en) 1983-03-15 1983-03-15

Country Status (1)

Country Link
JP (1) JPS6030532B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63252711A (en) * 1987-04-10 1988-10-19 Kobayashi Tekkosho:Kk Molding method for synthetic resin molded product and its device

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5935020U (en) * 1982-08-27 1984-03-05

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5935020B2 (en) * 1975-09-17 1984-08-25 Ricoh Kk

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5935020U (en) * 1982-08-27 1984-03-05

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63252711A (en) * 1987-04-10 1988-10-19 Kobayashi Tekkosho:Kk Molding method for synthetic resin molded product and its device

Also Published As

Publication number Publication date
JPS6030532B2 (en) 1985-07-17

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