JPS5772836A - Method and apparatus for producing marble-patterned molded article - Google Patents

Method and apparatus for producing marble-patterned molded article

Info

Publication number
JPS5772836A
JPS5772836A JP14934180A JP14934180A JPS5772836A JP S5772836 A JPS5772836 A JP S5772836A JP 14934180 A JP14934180 A JP 14934180A JP 14934180 A JP14934180 A JP 14934180A JP S5772836 A JPS5772836 A JP S5772836A
Authority
JP
Japan
Prior art keywords
resins
nozzle
torpedo
mixed
marble
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
JP14934180A
Other languages
Japanese (ja)
Inventor
Yoshiharu Hatakeyama
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.)
YKK Corp
Original Assignee
YKK Corp
Yoshida 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 YKK Corp, Yoshida Kogyo KK filed Critical YKK Corp
Priority to JP14934180A priority Critical patent/JPS5772836A/en
Publication of JPS5772836A publication Critical patent/JPS5772836A/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
    • B29C45/16—Making multilayered or multicoloured articles
    • B29C45/1634—Making multilayered or multicoloured articles with a non-uniform dispersion of the moulding material in the article, e.g. resulting in a marble effect
    • 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
    • B29C45/46—Means for plasticising or homogenising the moulding material or forcing it into the mould
    • B29C45/58—Details
    • B29C45/581—Devices for influencing the material flow, e.g. "torpedo constructions" or mixing devices

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)

Abstract

PURPOSE:To easily injection mold a marble-patterned molded article while ensuring that the pattern can be easily changed, by a method wherein resins of different colors melted by heating are mixed with each other by a torpedo consisting of spiral vanes. CONSTITUTION:The resins of different colors which are melted separately by heating cylinders 2, 3 respectively are fed to a nozzle 8 through passages 6, 7, then the resins are mixed with each other to an appropriate degree by the torpedo 11 provided in the nozzle 8, and the mixed resin is injected into a predetermined mold. The torpedo 11 consists of left spiral vanes 9 and right spiral vanes 10 both of which are alternately connected in a crossing manner, and it is rotatably fitted in the nozzle 8. The density of the marble pattern can be controlled by regulating the number of the crossing positions of the vanes 9, 10. Also, the amount of one of the resin materials can be made larger than that of the other by changing the injection speed for the resin materials in the two cylinders. The method and apparatus is particularly suitable for producing large-size molded articles.
JP14934180A 1980-10-27 1980-10-27 Method and apparatus for producing marble-patterned molded article Pending JPS5772836A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14934180A JPS5772836A (en) 1980-10-27 1980-10-27 Method and apparatus for producing marble-patterned molded article

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14934180A JPS5772836A (en) 1980-10-27 1980-10-27 Method and apparatus for producing marble-patterned molded article

Publications (1)

Publication Number Publication Date
JPS5772836A true JPS5772836A (en) 1982-05-07

Family

ID=15472986

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14934180A Pending JPS5772836A (en) 1980-10-27 1980-10-27 Method and apparatus for producing marble-patterned molded article

Country Status (1)

Country Link
JP (1) JPS5772836A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5953918U (en) * 1982-09-30 1984-04-09 日精樹脂工業株式会社 Pattern forming nozzle
JPS62109914U (en) * 1985-12-28 1987-07-13
JPS6472819A (en) * 1987-09-14 1989-03-17 Koatsu Kako Decorative object
JP2006123398A (en) * 2004-10-29 2006-05-18 Fujikura Rubber Ltd Injection molding machine of liquid resin
KR100777836B1 (en) * 2006-05-03 2007-11-28 (주)대호스크류 Filter nozzle for kneading and filtration of molten resin
JP2010276199A (en) * 2009-05-20 2010-12-09 Nordson Corp Valve device equipped with integrated mixer element

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5953918U (en) * 1982-09-30 1984-04-09 日精樹脂工業株式会社 Pattern forming nozzle
JPS62109914U (en) * 1985-12-28 1987-07-13
JPS6472819A (en) * 1987-09-14 1989-03-17 Koatsu Kako Decorative object
JP2006123398A (en) * 2004-10-29 2006-05-18 Fujikura Rubber Ltd Injection molding machine of liquid resin
KR100777836B1 (en) * 2006-05-03 2007-11-28 (주)대호스크류 Filter nozzle for kneading and filtration of molten resin
JP2010276199A (en) * 2009-05-20 2010-12-09 Nordson Corp Valve device equipped with integrated mixer element

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