CA1074519A - Method and apparatus for producing undercut tubular synthetic plastic articles - Google Patents

Method and apparatus for producing undercut tubular synthetic plastic articles

Info

Publication number
CA1074519A
CA1074519A CA258,002A CA258002A CA1074519A CA 1074519 A CA1074519 A CA 1074519A CA 258002 A CA258002 A CA 258002A CA 1074519 A CA1074519 A CA 1074519A
Authority
CA
Canada
Prior art keywords
core
article
fitting
mold
combination
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.)
Expired
Application number
CA258,002A
Other languages
English (en)
French (fr)
Inventor
Anton Anger
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.)
ANTON ANGER MASCHINENBAU GmbH
Original Assignee
ANTON ANGER MASCHINENBAU GmbH
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 ANTON ANGER MASCHINENBAU GmbH filed Critical ANTON ANGER MASCHINENBAU GmbH
Application granted granted Critical
Publication of CA1074519A publication Critical patent/CA1074519A/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
    • B29C57/00—Shaping of tube ends, e.g. flanging, belling or closing; Apparatus therefor, e.g. collapsible mandrels
    • B29C57/02—Belling or enlarging, e.g. combined with forming a groove
    • 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
    • B29C37/00—Component parts, details, accessories or auxiliary operations, not covered by group B29C33/00 or B29C35/00
    • B29C37/0003—Discharging moulded articles from the mould
    • B29C37/0014—Discharging moulded articles from the mould by flexibly or permanently deforming undercut portions of the articles
    • 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
    • B29C45/261—Moulds having tubular mould cavities
    • B29C45/2612—Moulds having tubular mould cavities for manufacturing tubular articles with an annular groove
    • 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
    • B29C45/40—Removing or ejecting moulded articles
    • B29C45/44—Removing or ejecting moulded articles for undercut articles
    • B29C45/4407—Removing or ejecting moulded articles for undercut articles by flexible movement of undercut portions of the articles

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)
CA258,002A 1975-07-29 1976-07-28 Method and apparatus for producing undercut tubular synthetic plastic articles Expired CA1074519A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT587875A AT356369B (de) 1975-07-29 1975-07-29 Spritzgussform zum herstellen von fittingen

Publications (1)

Publication Number Publication Date
CA1074519A true CA1074519A (en) 1980-04-01

Family

ID=3580532

Family Applications (1)

Application Number Title Priority Date Filing Date
CA258,002A Expired CA1074519A (en) 1975-07-29 1976-07-28 Method and apparatus for producing undercut tubular synthetic plastic articles

Country Status (4)

Country Link
AT (1) AT356369B (de)
CA (1) CA1074519A (de)
YU (1) YU186776A (de)
ZA (1) ZA764530B (de)

Also Published As

Publication number Publication date
ZA764530B (en) 1977-08-31
ATA587875A (de) 1977-07-15
AT356369B (de) 1980-04-25
YU186776A (en) 1983-12-31

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