JPS55146723A - Valve nozzle for injection molding - Google Patents

Valve nozzle for injection molding

Info

Publication number
JPS55146723A
JPS55146723A JP5399479A JP5399479A JPS55146723A JP S55146723 A JPS55146723 A JP S55146723A JP 5399479 A JP5399479 A JP 5399479A JP 5399479 A JP5399479 A JP 5399479A JP S55146723 A JPS55146723 A JP S55146723A
Authority
JP
Japan
Prior art keywords
valve
nozzle
tip end
main body
retainer
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
JP5399479A
Other languages
Japanese (ja)
Other versions
JPS5951894B2 (en
Inventor
Yoshihiko Yamazaki
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.)
Nissei Plastic Industrial Co Ltd
Original Assignee
Nissei Plastic Industrial Co 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 Nissei Plastic Industrial Co Ltd filed Critical Nissei Plastic Industrial Co Ltd
Priority to JP5399479A priority Critical patent/JPS5951894B2/en
Publication of JPS55146723A publication Critical patent/JPS55146723A/en
Publication of JPS5951894B2 publication Critical patent/JPS5951894B2/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
    • B29C45/20—Injection nozzles
    • B29C45/23—Feed stopping equipment
    • B29C45/231—Needle valve systems therefor

Landscapes

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

Abstract

PURPOSE:To reduce pressure loss by a method wherein the inside surface of a nozzle main body and the tip end portion of a valve pressed against the surface are fomed in special shapes so that the valve will not open even under a high resin pressure during a plasticization step but will open during an injection step. CONSTITUTION:A valve retainer 3 comprises an annular portion 30 which is held between a nozzle main body 12 and a nozzle cylinder 13 and a hollow retaining portion 31 which is located in the center of the annular portion 30 and has an opening end faced to a nozzle port 10. A valve 34 is retained in the retainer 3, with a shaft portion 33 inserted slidably under the force of a spring 32. The tip end 35 of the valve 34 is provided with a diameter largher than the nozzle aperture so that it will contact a tapered surface 11, and the tip end face is provided with a projected member 36 for limiting the amount of resin remaining in the gap 14 between the tip end face and the nozzle port 10.
JP5399479A 1979-05-01 1979-05-01 Valve nozzle for injection molding Expired JPS5951894B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5399479A JPS5951894B2 (en) 1979-05-01 1979-05-01 Valve nozzle for injection molding

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5399479A JPS5951894B2 (en) 1979-05-01 1979-05-01 Valve nozzle for injection molding

Publications (2)

Publication Number Publication Date
JPS55146723A true JPS55146723A (en) 1980-11-15
JPS5951894B2 JPS5951894B2 (en) 1984-12-17

Family

ID=12958156

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5399479A Expired JPS5951894B2 (en) 1979-05-01 1979-05-01 Valve nozzle for injection molding

Country Status (1)

Country Link
JP (1) JPS5951894B2 (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57105726U (en) * 1980-12-23 1982-06-29
JPS5817120U (en) * 1981-06-12 1983-02-02 見崎　信吉 Nozzle for injection molding of synthetic resin etc.
JPH0162016U (en) * 1988-10-04 1989-04-20
JPH0377613U (en) * 1989-12-01 1991-08-05
JP2005246951A (en) * 2004-02-05 2005-09-15 Fuiisa Kk Valve nozzle
KR100819757B1 (en) * 2006-06-07 2008-04-07 유은미 Valve Nozzle
JPWO2020241744A1 (en) * 2019-05-29 2020-12-03

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0629277Y2 (en) * 1988-11-08 1994-08-10 株式会社間組 Closed earth pressure shield tunnel excavator

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57105726U (en) * 1980-12-23 1982-06-29
JPS5817120U (en) * 1981-06-12 1983-02-02 見崎　信吉 Nozzle for injection molding of synthetic resin etc.
JPH0162016U (en) * 1988-10-04 1989-04-20
JPH0377613U (en) * 1989-12-01 1991-08-05
JP2005246951A (en) * 2004-02-05 2005-09-15 Fuiisa Kk Valve nozzle
JP4538281B2 (en) * 2004-02-05 2010-09-08 フィーサ株式会社 Valve nozzle
KR100819757B1 (en) * 2006-06-07 2008-04-07 유은미 Valve Nozzle
JPWO2020241744A1 (en) * 2019-05-29 2020-12-03
WO2020241744A1 (en) * 2019-05-29 2020-12-03 本田技研工業株式会社 Injection molding device
CN113825613A (en) * 2019-05-29 2021-12-21 本田技研工业株式会社 Injection molding device

Also Published As

Publication number Publication date
JPS5951894B2 (en) 1984-12-17

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