WO2012139771A3 - Formkern für formwerkzeug - Google Patents

Formkern für formwerkzeug Download PDF

Info

Publication number
WO2012139771A3
WO2012139771A3 PCT/EP2012/001613 EP2012001613W WO2012139771A3 WO 2012139771 A3 WO2012139771 A3 WO 2012139771A3 EP 2012001613 W EP2012001613 W EP 2012001613W WO 2012139771 A3 WO2012139771 A3 WO 2012139771A3
Authority
WO
WIPO (PCT)
Prior art keywords
segments
moulding
supporting
succession
face
Prior art date
Application number
PCT/EP2012/001613
Other languages
English (en)
French (fr)
Other versions
WO2012139771A2 (de
Inventor
Helmut FREYSTETTER
Original Assignee
Ifw Manfred Otte 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 Ifw Manfred Otte Gmbh filed Critical Ifw Manfred Otte Gmbh
Publication of WO2012139771A2 publication Critical patent/WO2012139771A2/de
Publication of WO2012139771A3 publication Critical patent/WO2012139771A3/de

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
    • B29C45/40—Removing or ejecting moulded articles
    • B29C45/44—Removing or ejecting moulded articles for undercut articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22C—FOUNDRY MOULDING
    • B22C9/00—Moulds or cores; Moulding processes
    • B22C9/10—Cores; Manufacture or installation of cores
    • B22C9/103—Multipart cores
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D15/00—Casting using a mould or core of which a part significant to the process is of high thermal conductivity, e.g. chill casting; Moulds or accessories specially adapted therefor
    • B22D15/02—Casting using a mould or core of which a part significant to the process is of high thermal conductivity, e.g. chill casting; Moulds or accessories specially adapted therefor of cylinders, pistons, bearing shells or like thin-walled objects
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D17/00—Pressure die casting or injection die casting, i.e. casting in which the metal is forced into a mould under high pressure
    • B22D17/20—Accessories: Details
    • B22D17/22—Dies; Die plates; Die supports; Cooling equipment for dies; Accessories for loosening and ejecting castings from dies
    • B22D17/24—Accessories for locating and holding cores or inserts
    • 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
    • B29C33/00—Moulds or cores; Details thereof or accessories therefor
    • B29C33/44—Moulds or cores; Details thereof or accessories therefor with means for, or specially constructed to facilitate, the removal of articles, e.g. of undercut articles
    • B29C33/48—Moulds or cores; Details thereof or accessories therefor with means for, or specially constructed to facilitate, the removal of articles, e.g. of undercut articles with means for collapsing or disassembling
    • B29C33/485—Moulds or cores; Details thereof or accessories therefor with means for, or specially constructed to facilitate, the removal of articles, e.g. of undercut articles with means for collapsing or disassembling cores or mandrels
    • 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
    • B29C45/26—Moulds
    • B29C45/33—Moulds having transversely, e.g. radially, movable mould parts
    • 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
    • B29C45/4421—Removing or ejecting moulded articles for undercut articles using expansible or collapsible cores

Landscapes

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

Abstract

Die Erfindung betrifft einen Formkern (2) zur Herstellung von Formteilen aus Kunststoff oder niedrig schmelzenden Metalllegierungen, die mit zumindest einer zu deren Innenraum hin offenen und sich in Richtung auf die Außenwand erstreckenden Vertiefung versehen sind. Der Formkern (2) umfasst mehrere in Umfangsrichtung in einer Segmentreihe hintereinander angeordnete Segmente (7), welche mittels einer Verstellvorrichtung (8) von einer Arbeitsstellung in eine Freigabestellung verstellbar sind. Die Verstellvorrichtung (8) umfasst einen gemeinsamen Tragkörper (19) mit daran feststehend angeordneten, stabfbrmig ausgebildeten sowie in Umfangsrichtung hintereinander angeordneten Stützelementen (18). Zwischen unmittelbar hintereinander angeordneten Stützelementen (18) ist ein Freiraum (28) ausgebildet. Jedes der einzelnen Segmente (7) weist an einer von der äußeren Stirnfläche (9) abgewendeten Seite eine Stützfläche (17) auf, wobei jedes der Segmente (7) in der Arbeitsstellung mit seiner Stützfläche (17) an jeweils einer Anlagefläche (46) der Stützelemente (18) in radialer Richtung abgestützt ist.
PCT/EP2012/001613 2011-04-15 2012-04-13 Formkern für formwerkzeug WO2012139771A2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT5362011A AT511230A1 (de) 2011-04-15 2011-04-15 Formkern für formwerkzeug
ATA536/2011 2011-04-15

Publications (2)

Publication Number Publication Date
WO2012139771A2 WO2012139771A2 (de) 2012-10-18
WO2012139771A3 true WO2012139771A3 (de) 2013-06-27

Family

ID=46208414

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2012/001613 WO2012139771A2 (de) 2011-04-15 2012-04-13 Formkern für formwerkzeug

Country Status (2)

Country Link
AT (1) AT511230A1 (de)
WO (1) WO2012139771A2 (de)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2561839A (en) * 2017-04-24 2018-10-31 Radius Systems Ltd Method for expanding a tubular structure
DE102017109921A1 (de) 2017-05-09 2018-11-15 Martinrea Honsel Germany Gmbh Form zum Herstellen eines Gießkerns
CN114769558B (zh) * 2022-04-29 2024-05-14 深圳市企茂精密科技有限公司 一种摆动可调式铝合金压铸机

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US960226A (en) * 1909-03-22 1910-05-31 Single Service Package Corp Am Apparatus for making paper bottles.
US1470612A (en) * 1921-10-20 1923-10-16 Leroy S Andrew Collapsible form
US3279739A (en) * 1965-07-19 1966-10-18 Long Construction Co Expandable core-former
US4032282A (en) * 1973-09-24 1977-06-28 Wilson-Tek Corporation Apparatus for forming bells on plastic tubes
JPS55152015A (en) * 1979-05-16 1980-11-27 Mitsubishi Plastics Ind Ltd Socket forming device for synthetic resin pipe
US4238180A (en) * 1979-01-08 1980-12-09 John H. Gordon Mandrel with identical expanding segments

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1431714A (en) * 1973-07-05 1976-04-14 Hepworth Plastics Ltd Mandrels for use in the forming of hollow articles
AT328177B (de) 1973-11-23 1976-03-10 Osterreichische Symalen Ges M Vorrichtung zur formung von muffen
DE2752672C3 (de) 1977-11-25 1980-11-06 Thyssen Plastik Anger Kg, 8000 Muenchen Vorrichtung zum Formen einer Verbindungsmuffe mit einer Ringnut
JPS5783423A (en) * 1980-11-14 1982-05-25 Mitsubishi Plastics Ind Ltd Forming of thermoplastic resin tube faucet and its apparatus
US4389180A (en) * 1981-06-25 1983-06-21 Gordon John H Mandrel with identical expanding segments
AT408086B (de) 1990-12-21 2001-08-27 Karl Hauser Spritzgiesswerkzeug zur herstellung von hohlprofilen
AT399471B (de) 1993-06-04 1995-05-26 Ifw Manfred Otte Ges M B H & C Spritzgiessform

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US960226A (en) * 1909-03-22 1910-05-31 Single Service Package Corp Am Apparatus for making paper bottles.
US1470612A (en) * 1921-10-20 1923-10-16 Leroy S Andrew Collapsible form
US3279739A (en) * 1965-07-19 1966-10-18 Long Construction Co Expandable core-former
US4032282A (en) * 1973-09-24 1977-06-28 Wilson-Tek Corporation Apparatus for forming bells on plastic tubes
US4238180A (en) * 1979-01-08 1980-12-09 John H. Gordon Mandrel with identical expanding segments
JPS55152015A (en) * 1979-05-16 1980-11-27 Mitsubishi Plastics Ind Ltd Socket forming device for synthetic resin pipe

Also Published As

Publication number Publication date
AT511230A1 (de) 2012-10-15
WO2012139771A2 (de) 2012-10-18

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