JPS6472820A - Nozzle for injection molding machine - Google Patents

Nozzle for injection molding machine

Info

Publication number
JPS6472820A
JPS6472820A JP22857787A JP22857787A JPS6472820A JP S6472820 A JPS6472820 A JP S6472820A JP 22857787 A JP22857787 A JP 22857787A JP 22857787 A JP22857787 A JP 22857787A JP S6472820 A JPS6472820 A JP S6472820A
Authority
JP
Japan
Prior art keywords
nozzle
mold
sprue
tip
land
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.)
Pending
Application number
JP22857787A
Other languages
Japanese (ja)
Inventor
Toshiro Saito
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.)
Sumitomo Heavy Industries Ltd
Original Assignee
Sumitomo Heavy Industries 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 Sumitomo Heavy Industries Ltd filed Critical Sumitomo Heavy Industries Ltd
Priority to JP22857787A priority Critical patent/JPS6472820A/en
Publication of JPS6472820A publication Critical patent/JPS6472820A/en
Pending 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
    • B29C45/20—Injection nozzles

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)

Abstract

PURPOSE:To break and separate surely the tip of a nozzle from the tip of a sprue when a mold is opened by retracting the nozzle body with a specified hole from a mold in a specified timing. CONSTITUTION:While injection timing or anyone timing of cooling start or measurement finish is set as a starting point, a nozzle body 1 is retracted from a mold 2 by a prescribed stroke, other the arbitrarily set time by setting the time as a parameter. Further the outer diameter of a nozzle land 3 is caused to be larger than the inner diameter of a sprue 4. By providing above mentioned operation and the difference of diameters, the resin in the nozzle land 3 is sufficiently solidified, and the stringing from the tip of the sprue 4 is prevented, when the mold is opened. On one hand, the resin in the solidified nozzle land 3 is not also drawn away entirely from the nozzle body 1 in retreating process, and may be broken perfectly.
JP22857787A 1987-09-14 1987-09-14 Nozzle for injection molding machine Pending JPS6472820A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP22857787A JPS6472820A (en) 1987-09-14 1987-09-14 Nozzle for injection molding machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP22857787A JPS6472820A (en) 1987-09-14 1987-09-14 Nozzle for injection molding machine

Publications (1)

Publication Number Publication Date
JPS6472820A true JPS6472820A (en) 1989-03-17

Family

ID=16878546

Family Applications (1)

Application Number Title Priority Date Filing Date
JP22857787A Pending JPS6472820A (en) 1987-09-14 1987-09-14 Nozzle for injection molding machine

Country Status (1)

Country Link
JP (1) JPS6472820A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012096507A (en) * 2010-11-05 2012-05-24 Furukawa Electric Co Ltd:The Contact structure of injection part with spool bush

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012096507A (en) * 2010-11-05 2012-05-24 Furukawa Electric Co Ltd:The Contact structure of injection part with spool bush

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