JPS5751435A - Gate structure in metallic mold - Google Patents

Gate structure in metallic mold

Info

Publication number
JPS5751435A
JPS5751435A JP12777580A JP12777580A JPS5751435A JP S5751435 A JPS5751435 A JP S5751435A JP 12777580 A JP12777580 A JP 12777580A JP 12777580 A JP12777580 A JP 12777580A JP S5751435 A JPS5751435 A JP S5751435A
Authority
JP
Japan
Prior art keywords
hollow part
gate
pin point
cavity
inclined surface
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
JP12777580A
Other languages
Japanese (ja)
Inventor
Yasuyuki Nakazawa
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.)
Panasonic Electric Works Co Ltd
Original Assignee
Matsushita Electric Works 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 Matsushita Electric Works Ltd filed Critical Matsushita Electric Works Ltd
Priority to JP12777580A priority Critical patent/JPS5751435A/en
Publication of JPS5751435A publication Critical patent/JPS5751435A/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
    • B29C45/26—Moulds
    • B29C45/27—Sprue channels ; Runner channels or runner nozzles
    • B29C45/2701—Details not specific to hot or cold runner channels
    • B29C45/2708—Gates

Landscapes

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

Abstract

PURPOSE:To obtain the captioned structure capable of increasing the thickness of a sharp angle part produced by a gate and a cavity by a method wherein a pin point gate is provided at a hollow part of large diameter installed on the inclined surface of the cavity inclined to a pin point gate. CONSTITUTION:A convex semi-spheric hollow part 3 having a diameter larger than the pin point gate 2 has is provided on an inclined surface 1a of a cavity 1 and the pin point gate 2 is installed from a runner 5 to this hollow part 3. The thickness a of the sharp angle part 6 between the runner 5 and the inclined surface 1a is increased by the height of the hollow part 3, does not make a thin thickness part. The hollow part 3 has a large diameter and though the gate is made longer, injection pressure does not become larger.
JP12777580A 1980-09-13 1980-09-13 Gate structure in metallic mold Pending JPS5751435A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12777580A JPS5751435A (en) 1980-09-13 1980-09-13 Gate structure in metallic mold

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12777580A JPS5751435A (en) 1980-09-13 1980-09-13 Gate structure in metallic mold

Publications (1)

Publication Number Publication Date
JPS5751435A true JPS5751435A (en) 1982-03-26

Family

ID=14968377

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12777580A Pending JPS5751435A (en) 1980-09-13 1980-09-13 Gate structure in metallic mold

Country Status (1)

Country Link
JP (1) JPS5751435A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59184270A (en) * 1983-04-04 1984-10-19 Hitachi Chem Co Ltd Printing ink
JPH0212238A (en) * 1988-06-30 1990-01-17 Konica Corp Wrapping material for photographic sensitive material
EP0719629A2 (en) * 1994-12-23 1996-07-03 TECNO PLASTIC S.r.l. Injection mold for PVC allowing easy detachment of plug from molded piece

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59184270A (en) * 1983-04-04 1984-10-19 Hitachi Chem Co Ltd Printing ink
JPH0212238A (en) * 1988-06-30 1990-01-17 Konica Corp Wrapping material for photographic sensitive material
EP0719629A2 (en) * 1994-12-23 1996-07-03 TECNO PLASTIC S.r.l. Injection mold for PVC allowing easy detachment of plug from molded piece
EP0719629A3 (en) * 1994-12-23 1997-01-02 Tecno Plastic Srl Injection mold for PVC allowing easy detachment of plug from molded piece

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