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DE29511641U1 - Device for producing molded parts from thermoplastic and foamable plastic - Google Patents

Device for producing molded parts from thermoplastic and foamable plastic

Info

Publication number
DE29511641U1
DE29511641U1 DE29511641U DE29511641U DE29511641U1 DE 29511641 U1 DE29511641 U1 DE 29511641U1 DE 29511641 U DE29511641 U DE 29511641U DE 29511641 U DE29511641 U DE 29511641U DE 29511641 U1 DE29511641 U1 DE 29511641U1
Authority
DE
Germany
Prior art keywords
molded part
shaping according
elastic molded
elastic
thermoplastic
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 - Lifetime
Application number
DE29511641U
Other languages
German (de)
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.)
MAGNA ZIPPEX AUTOTECHNIK GmbH
Original Assignee
MAGNA ZIPPEX AUTOTECHNIK 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 MAGNA ZIPPEX AUTOTECHNIK GmbH filed Critical MAGNA ZIPPEX AUTOTECHNIK GmbH
Priority to DE29511641U priority Critical patent/DE29511641U1/en
Publication of DE29511641U1 publication Critical patent/DE29511641U1/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
    • B29C44/34—Auxiliary operations
    • B29C44/35—Component parts; Details or accessories
    • B29C44/351—Means for preventing foam to leak out from the foaming device during foaming
    • 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
    • B29C33/0038—Moulds or cores; Details thereof or accessories therefor with sealing means or the like
    • 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
    • B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
    • B29C44/34—Auxiliary operations
    • B29C44/58—Moulds

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)

Description

• &igr; ■; j j * ··· *•&igr;■; j j * ··· *

Vorrichtung zur Herstellung* Von Formteilen. Ans. thermoplastischemDevice for the production* of molded parts. Ans. thermoplastic

und schäumbarem Kunststoffand foamable plastic

Die Erfindung betrifft eine Vorrichtung zur Herstellung von Fonnteilen aus thermoplastisch formbarem und schäumbarem Kunststoff nach dem Oberbegriff des Anspruchs 1.The invention relates to a device for producing molded parts from thermoplastically moldable and foamable plastic according to the preamble of claim 1.

Formteile aus thermoplastischem und geschäumtem Kunststoff sind vielfach von flächiger Gestaltung und werden, unter Nutzbarmachung ihrer werkstoffspezifischen Eigenschaften, als Grundkörper für Ausstattungs- und Zubehörteile für den Innenraumbereich von Fahrzeugen verwendet.Molded parts made of thermoplastic and foamed plastic often have a flat design and, making use of their material-specific properties, are used as base bodies for equipment and accessories for the interior of vehicles.

Sie finden so Verwendung als Körper von Armlehnen, Kopfstützen oder auch von Sonnenblenden.They are used as the bodies of armrests, headrests or even sun visors.

Diese Körper, denen z.B. die Kontur einer Sonnenblende bei dem Urformen, beim Schäumen, vermittelt wird, werden dadurch zu einem anspruchsvollen Endprodukt konfektioniert, daß sie mit folie- oder textilähnlichem Material überzogen werden. Auf das Aussehen der Verbindungsstellen dieses Materiales, vorrangig sind es Schweißverbindungen, hat eine Gratbildung an dem geschäumten Körper großen Einfluß.These bodies, which are given the contour of a sun visor during the initial shaping process, i.e. during foaming, are made into a sophisticated end product by covering them with a film or textile-like material. The formation of burrs on the foamed body has a major influence on the appearance of the joints of this material, primarily welded joints.

Geschäumte Körper, die in bisher dafür bekannten und üblichen Vorrichtungen hergestellt werden, bedürfen daher, vor der Konfektionierung zum Endprodukt, einer Gratentfernung.Foamed bodies that are manufactured using conventional devices that are known to date therefore require flash removal before they are made into the final product.

Das Problem der qualitätsbeeinträchtigenden Gratbildung wird mit den im Anspruch 1 genannten Merkmalen gelöst.The problem of quality-impairing burr formation is solved with the features mentioned in claim 1.

Mit der Erfindung wird erreicht, daß keine Partikel aus thermoplastischem und schäumbarem Kunststoff beim Füllen der Kavität der Vorrichtung zwischen die Dichtflächen der Vorrichtungshälften gelangen.The invention ensures that no particles of thermoplastic and foamable plastic get between the sealing surfaces of the device halves when filling the cavity of the device.

Dennoch in den Bereich der Dichtflächen gelangende Partikel werden beim Schließvorgang der Vorrichtung, durch die Deformierung des erfindungsgemäßen umrandenden elastischen Formteiles, in Richtung der Kavität verlagert und können somit nicht zur Gratbildung geformt werden.
Das in der erfindungsgemäßen Vorrichtung angeordnete erfindungs-Particles that nevertheless reach the area of the sealing surfaces are displaced in the direction of the cavity during the closing process of the device by the deformation of the surrounding elastic molded part according to the invention and thus cannot be formed to form burrs.
The inventive device arranged in the inventive

gemäße elastische Formteil führt beim Schäumungsprozeß zur Ausformung der nutartigen Vertiefung am geschäumten Körper, etwa in Höhe der Trennebene der Verbindung. Die so erzeugte erfindungsgemäße nutartige Vertiefung ist weitestgehend gratfrei.The elastic molded part according to the invention leads to the formation of the groove-like depression on the foamed body during the foaming process, approximately at the level of the parting plane of the connection. The groove-like depression according to the invention thus produced is largely burr-free.

In der erfindungsgemäßen nutartigen Vertiefung ist eine später herzustellende Verbindungsstelle, z.B. eine Schweißnaht, qualitativ einwandfrei zu positionieren.A connection point to be produced later, e.g. a weld seam, must be positioned in a qualitatively perfect manner in the groove-like recess according to the invention.

Die Erfindung wird nachstehend anhand eines möglichen Ausführugsbeispieles näher erläutert.
Es zeigen in den Zeichnungen:The invention is explained in more detail below using a possible embodiment.
The drawings show:

Fig. 1 die beiden Vorrichtungshälften (1) in geöffnetem Zustand und das umrandende elastische Formteil (2).Fig. 1 the two device halves (1) in opened state and the surrounding elastic molded part (2).

Fig. 2 eine Darstellung der Vorrichtung (1) in geöffnetem Zustand mit arretiertem Formteil (2) und dessen Hohlkammer (3)'.Fig. 2 shows a representation of the device (1) in the opened state with the locked molded part (2) and its hollow chamber (3)'.

Fig. 3 eine Darstellung der Vorrichtung (1) in geschlossenem Zustand und dem form- und konturgebenden Formteil (2)Fig. 3 a representation of the device (1) in the closed state and the shaping and contouring mold part (2)

Fig. 4 das elastische Formteil (2) im Querschnitt.Fig. 4 the elastic molded part (2) in cross section.

Fig. 5 die Schnittdarstellung eines Formteiles aus thermoplastischem und geschäumtem Kunststoff mit nutartiger Vertiefung (4), in Höhe der Trennebene.Fig. 5 shows the sectional view of a molded part made of thermoplastic and foamed plastic with a groove-like recess (4) at the level of the parting plane.

Fig. 6 eine Detaildarstellung der nutartigen Vertiefung (4).Fig. 6 shows a detailed view of the groove-like recess (4).

Claims (10)

Schutzansprüche * "··* &idigr; .·*...·Protection claims * "··* &idigr; .·*...· 1. Vorrichtung zur Herstellung von Formteilen aus thermoplastischem und schäumbarem Kunststoff, dadurch gekennzeichnet, daß die Abdichtung im Randbereich der beiden Vorrichtungshälften (1) mittels eines umrandenden elastischen Formteiles (2) erfolgt.1. Device for producing molded parts made of thermoplastic and foamable plastic, characterized in that the sealing in the edge region of the two device halves (1) is carried out by means of a surrounding elastic molded part (2). 2. Vorrichtung für die Formgebung nach Anspruch dadurch gekennzeichnet, daß in dem elastischen Formteil (2) in Längsrichtung eine Hohlkammer (3) ausgebildet ist.2. Device for shaping according to claim 1, characterized in that a hollow chamber (3) is formed in the elastic molded part (2) in the longitudinal direction. 3. Vorrichtung für die Formgebung nach Anspruch 1 und 2, dadurch gekennzeichnet, daß das elastische Formteil (2) endlos ausgebildet ist.3. Device for shaping according to claim 1 and 2, characterized in that the elastic molded part (2) is endless. 4. Vorrichtung für die Formgebung nach einem oder mehreren der vorangegangenen Ansprüche, dadurch gekennzeichnet, daß die Hohlkammer (3) des elastischen Formteiles (2) mit einem gasförmigen oder flüssigen Medium gefüllt ist.4. Device for shaping according to one or more of the preceding claims, characterized in that the hollow chamber (3) of the elastic molded part (2) is filled with a gaseous or liquid medium. 5. Vorrichtung für die Formgebung nach Anspruch 4, dadurch gekennzeichnet, daß auf das Medium ein regelbarer Druck wirkt.5. Device for shaping according to claim 4, characterized in that an adjustable pressure acts on the medium. 6. Vorrichtung für die Formgebung nach einem oder mehreren der vorangegangenen Ansprüche, dadurch gekennzeichnet, daß das elastische Formteil {2) in dem Randbereich einer Hälfte der Vorrichtung (1) form- und kraftschlüssig arretiert ist.6. Device for shaping according to one or more of the preceding claims, characterized in that the elastic molded part (2) is locked in the edge region of one half of the device (1) in a form-fitting and force-fitting manner. 7. Vorrichtung für die Formgebung nach einem oder mehreren der vorangegangenen Ansprüche, dadurch gekennzeichnet, daß das elastische Formteil (2) in der geschlossenen Vor-7. Device for shaping according to one or more of the preceding claims, characterized in that the elastic mold part (2) in the closed pre- richtung (1), in der Höhe bzw. Mitte von deren Trennebene, form- und konturgebend für den Außenrandbereich des herzustellenden Formteiles ist.direction (1), at the height or center of its parting plane, gives the shape and contour to the outer edge area of the molded part to be produced. 8. Vorrichtung für die Formgebung nach Anspruch 7, dadurch gekennzeichnet,8. Device for shaping according to claim 7, characterized in that daß die Form- und Konturgebung durch das elastische Formteil (2) im Bereich der Trennebene des herzustellenden Formteiles zur Ausbildung einer nutartigen Vertiefung (4) führt.that the shape and contouring by the elastic molded part (2) in the area of the parting plane of the molded part to be produced leads to the formation of a groove-like depression (4). 9. Vorrichtung für die Formgebung nach einem oder mehreren der vorangegangenen Ansprüche,9. Device for shaping according to one or more of the preceding claims, dadurch gekennzeichnet,characterized, daß das elastische Formteil (2) aus einem temperaturbeständigen, antiadhäsiven polymeren oder elastomeren Werkstoff besteht.that the elastic molded part (2) consists of a temperature-resistant, anti-adhesive polymeric or elastomeric material. 10. Vorrichtung für die Formgebung nach Anspruch {9), dadurch gekennzeichnet,10. Device for shaping according to claim {9), characterized in that daß das elastische Formteil (2) aus einem extrudierten Profil durch Zusammenfügung der Enden hergestellt ist.that the elastic molded part (2) is made from an extruded profile by joining the ends together.
DE29511641U 1995-07-19 1995-07-19 Device for producing molded parts from thermoplastic and foamable plastic Expired - Lifetime DE29511641U1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE29511641U DE29511641U1 (en) 1995-07-19 1995-07-19 Device for producing molded parts from thermoplastic and foamable plastic

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE29511641U DE29511641U1 (en) 1995-07-19 1995-07-19 Device for producing molded parts from thermoplastic and foamable plastic

Publications (1)

Publication Number Publication Date
DE29511641U1 true DE29511641U1 (en) 1995-09-21

Family

ID=8010711

Family Applications (1)

Application Number Title Priority Date Filing Date
DE29511641U Expired - Lifetime DE29511641U1 (en) 1995-07-19 1995-07-19 Device for producing molded parts from thermoplastic and foamable plastic

Country Status (1)

Country Link
DE (1) DE29511641U1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015014601A1 (en) * 2013-08-01 2015-02-05 Bayerische Motoren Werke Aktiengesellschaft Tool for producing fiber-reinforced plastics components in the injection process
DE102012000621B4 (en) * 2012-01-14 2016-04-21 Daimler Ag Method for attaching a sealing element to a tool

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1729179A1 (en) * 1967-10-04 1971-06-09 Krauss Maffei Ag Injection mold for thermoplastics
DE2922802C2 (en) * 1979-06-05 1982-02-18 Helmut 3220 Alfeld Baxmann Device for sealing molds tightly
DE3507522A1 (en) * 1985-03-04 1986-09-04 Deutsche Fibrit Gesellschaft Ebers & Dr. Müller mbH, 4150 Krefeld Process for producing motor vehicle lining parts
DE3905718C2 (en) * 1989-02-24 1990-12-20 Bayerische Motoren Werke Ag, 8000 Muenchen, De
EP0553486A1 (en) * 1992-01-31 1993-08-04 CENTRO SVILUPPO SETTORI IMPIEGO S.r.l. Tooling and process for moulding polymeric materials in the liquid state

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1729179A1 (en) * 1967-10-04 1971-06-09 Krauss Maffei Ag Injection mold for thermoplastics
DE2922802C2 (en) * 1979-06-05 1982-02-18 Helmut 3220 Alfeld Baxmann Device for sealing molds tightly
DE3507522A1 (en) * 1985-03-04 1986-09-04 Deutsche Fibrit Gesellschaft Ebers & Dr. Müller mbH, 4150 Krefeld Process for producing motor vehicle lining parts
DE3905718C2 (en) * 1989-02-24 1990-12-20 Bayerische Motoren Werke Ag, 8000 Muenchen, De
EP0553486A1 (en) * 1992-01-31 1993-08-04 CENTRO SVILUPPO SETTORI IMPIEGO S.r.l. Tooling and process for moulding polymeric materials in the liquid state

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
56-144133 A.,M- 112,Febr. 16,1982,Vol. 6,No. 26 *
JP Patents Abstracts of Japan: 58-205740 A.,M- 282,March 10,1984,Vol. 8,No. 54 *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012000621B4 (en) * 2012-01-14 2016-04-21 Daimler Ag Method for attaching a sealing element to a tool
WO2015014601A1 (en) * 2013-08-01 2015-02-05 Bayerische Motoren Werke Aktiengesellschaft Tool for producing fiber-reinforced plastics components in the injection process
US9944004B2 (en) 2013-08-01 2018-04-17 Bayerische Motoren Werke Aktiengesellschaft Tool for producing fiber-reinforced plastics components in the injection process

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Legal Events

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R207 Utility model specification

Effective date: 19951102

R163 Identified publications notified

Effective date: 19951020

R150 Utility model maintained after payment of first maintenance fee after three years

Effective date: 19981130

R151 Utility model maintained after payment of second maintenance fee after six years

Effective date: 20020506

R152 Utility model maintained after payment of third maintenance fee after eight years

Effective date: 20031120

R071 Expiry of right