CA2246391A1 - Melt distribution arrangement for three level stack molds - Google Patents

Melt distribution arrangement for three level stack molds Download PDF

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Publication number
CA2246391A1
CA2246391A1 CA 2246391 CA2246391A CA2246391A1 CA 2246391 A1 CA2246391 A1 CA 2246391A1 CA 2246391 CA2246391 CA 2246391 CA 2246391 A CA2246391 A CA 2246391A CA 2246391 A1 CA2246391 A1 CA 2246391A1
Authority
CA
Canada
Prior art keywords
plenum
mold
melt
level
outlet conduit
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
CA 2246391
Other languages
French (fr)
Other versions
CA2246391C (en
Inventor
Henry J. Rozema
Vincent Travalglini
Joseph Robert Klanfar
David Robert Brown
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.)
StackTeck Systems Ltd
Original Assignee
Tradesco Mold 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 Tradesco Mold Ltd filed Critical Tradesco Mold Ltd
Priority to CA 2246391 priority Critical patent/CA2246391C/en
Publication of CA2246391A1 publication Critical patent/CA2246391A1/en
Application granted granted Critical
Publication of CA2246391C publication Critical patent/CA2246391C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • B29C45/32—Moulds having several axially spaced mould cavities, i.e. for making several separated articles
    • B29C45/322—Runner systems for distributing the moulding material to the stacked mould cavities

Landscapes

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

Abstract

A method and apparatus for distributing melt through three level stack molds. According to the method a crossover manifold is provided between adjacent mold levels of the stack mold, the crossover manifold having a plenum generally coaxial with a mold axis. Melt is introduced into the plenum through an inlet passage and distributed from the plenum to respective nozzle arrays through a separate outlet conduit associated with each mold level. The apparatus includes a crossover manifold mounted between first and second mold levels and having a plenum generally coaxial with the mold axis. An inlet conduit fluidly communicates with the plenum and an injection head to provide a melt path from the injection head into the plenum. A separate outlet conduit is provided for each mold level. Each outlet conduit fluidly communicates at one end with the plenum and at an opposite end with the injection nozzles of a respective mold level to provide a melt path from the plenum to each of the injection nozzles of the respective mold level. Each outlet conduit defines a respective melt path of generally equal length and resistance to melt flow.
CA 2246391 1998-09-02 1998-09-02 Melt distribution arrangement for three level stack molds Expired - Lifetime CA2246391C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA 2246391 CA2246391C (en) 1998-09-02 1998-09-02 Melt distribution arrangement for three level stack molds

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA 2246391 CA2246391C (en) 1998-09-02 1998-09-02 Melt distribution arrangement for three level stack molds

Publications (2)

Publication Number Publication Date
CA2246391A1 true CA2246391A1 (en) 2000-03-02
CA2246391C CA2246391C (en) 2003-11-25

Family

ID=29409835

Family Applications (1)

Application Number Title Priority Date Filing Date
CA 2246391 Expired - Lifetime CA2246391C (en) 1998-09-02 1998-09-02 Melt distribution arrangement for three level stack molds

Country Status (1)

Country Link
CA (1) CA2246391C (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004041505A1 (en) * 2002-11-06 2004-05-21 Pawel Samotik Shut-off device and method for hot runner gates
FR2915417A1 (en) * 2007-04-25 2008-10-31 Plastic System Packaging Soc P Container e.g. beaker, producing device, has distribution path with segments for reforming integrality of piping when male and female parts of mold are rejoined during closing of assemblies, and inlet for supplying plastic material
EP2113361A1 (en) * 2008-04-29 2009-11-04 Plastic System Packaging Device and method for producing containers with reduced tapering

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004041505A1 (en) * 2002-11-06 2004-05-21 Pawel Samotik Shut-off device and method for hot runner gates
FR2915417A1 (en) * 2007-04-25 2008-10-31 Plastic System Packaging Soc P Container e.g. beaker, producing device, has distribution path with segments for reforming integrality of piping when male and female parts of mold are rejoined during closing of assemblies, and inlet for supplying plastic material
EP2113361A1 (en) * 2008-04-29 2009-11-04 Plastic System Packaging Device and method for producing containers with reduced tapering

Also Published As

Publication number Publication date
CA2246391C (en) 2003-11-25

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Effective date: 20180904