DE102007022327A1 - Tool cavity for production of molded part of foam particle, has core and hood formed from sheet metal i.e. high-grade steel, with thickness of approximately specific millimeters, where core and hood are welded together - Google Patents
Tool cavity for production of molded part of foam particle, has core and hood formed from sheet metal i.e. high-grade steel, with thickness of approximately specific millimeters, where core and hood are welded together Download PDFInfo
- Publication number
- DE102007022327A1 DE102007022327A1 DE102007022327A DE102007022327A DE102007022327A1 DE 102007022327 A1 DE102007022327 A1 DE 102007022327A1 DE 102007022327 A DE102007022327 A DE 102007022327A DE 102007022327 A DE102007022327 A DE 102007022327A DE 102007022327 A1 DE102007022327 A1 DE 102007022327A1
- Authority
- DE
- Germany
- Prior art keywords
- core
- hood
- sheet metal
- thickness
- production
- 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.)
- Ceased
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
- B29C44/58—Moulds
-
- 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
- B29C33/0011—Moulds or cores; Details thereof or accessories therefor thin-walled moulds
Abstract
Description
Die Erfindung betrifft eine Werkzeugkavität zur Herstellung von Formteilen aus Partikelschaumstoffen durch Aufschäumen von Pellets (Perlen) aus expandierbarem Kunststoff (PS-E, PE-E, PP-E) zu Schaumstoffformkörpern. Die Pellets (zum Beispiel expandierbares Polystyrol oder expandierbares Polypropylen) haben einen Durchmesser von 1–8 mm. Sie werden in Aluminiumformen eingebracht. In diese Formen wird durch Düsen Heißdampf mit einem Druck von 0,8–4,5 bar eingeblasen. Die Pellets schäumen dabei auf und verschmelzen an ihren Außenflächen miteinander. Nach einer Abkühl- und Stabilisierungsphase werden die derart entstanden Schaumstoffkörper aus der Form ausgestoßen (entformt). Man erhält so thermoplastische Schaumstoffformkörper mit einer Dichte von ca. 12 kg/m3 bis 300 kg/m3 bei weitgehend homogener Dichte. Solche Schaumstoffformkörper finden unter anderem als Isolierbehälter, Mehrwegtransportverpackungen, Automobilteile (wie zum Beispiel Stoßfängerkerne, Sonnenblenden, Crashpads usw.) Verwendung.The invention relates to a mold cavity for the production of moldings from particle foams by foaming of pellets (beads) of expandable plastic (PS-E, PE-E, PP-E) to foam moldings. The pellets (for example expandable polystyrene or expandable polypropylene) have a diameter of 1-8 mm. They are introduced in aluminum molds. In these molds hot steam is injected through nozzles with a pressure of 0.8-4.5 bar. The pellets foam and fuse together on their outer surfaces. After a cooling and stabilizing phase, the foam bodies thus produced are ejected from the mold (demolded). This gives thermoplastic foam molding having a density of about 12 kg / m 3 to 300 kg / m 3 at substantially homogeneous density. Such foam moldings are used, inter alia, as insulated containers, reusable transport packaging, automotive parts (such as bumper cores, sun visors, crash pads, etc.).
Stand der TechnikState of the art
Sowohl
die Haube
Der
Eintritt des Heißdampfes in die Kavität
Die AufgabeThe task
Die der Erfindung zugrunde liegende Aufgabe besteht darin, die Taktzeiten zur Herstellung eines Schaumstoffformkörpers, die unter anderem durch die Dauer des Bedampfungsvorgangs, sowie des Abkühl- und Stabilisierungsvorganges bestimmt sind, zu verringern.The The object underlying the invention is the cycle times for producing a foam molding, the under due to the duration of the steaming process, as well as the cooling and Stabilisierungsvorganges are determined to reduce.
Die LösungThe solution
Diese Aufgabe wird erfindungsgemäß dadurch gelöst, dass Haube und Kern aus Blech, vorzugsweise aus Edelstahlblech, gefertigt sind. Edelstahl kann die auftretenden mechanischen Belastungen schon bei im wesentlich geringerer Dicke als Aluminium aufnehmen, so dass die Bedampfung und die Abkühlung schneller erfolgen kann. Dadurch werden die Taktzeiten erheblich gesenkt.These The object is achieved according to the invention the hood and core are made of sheet metal, preferably made of sheet steel, are made. Stainless steel can withstand the mechanical stresses that occur already absorb at a much smaller thickness than aluminum, so that the steaming and the cooling are faster can. This significantly reduces the cycle times.
Beschreibung der FigurenDescription of the figures
Ein Ausführungsbeispiel der Erfindung wird im Folgenden unter Bezugnahme auf die beigefügten Zeichnungen näher beschrieben. Es stellen dar:One Embodiment of the invention will become below Referring to the accompanying drawings in more detail described. They show:
Beschreibung des AusführungsbeispielsDescription of the embodiment
Kern
Kern
Durch die geringe Wandstärke der aus Blech hergestellten Kavitäten, die deutlich geringer als die der seither verwendeten Aluminiumformen ist, kann im Vergleich zum Stande der Technik der Temperaturwechsel zwischen "Verschweißen" und "Abkühlen/Stabilisieren" der Pellets schneller, gleichmäßiger und energiesparender wie nach dem Stande der Technik erfolgen. Versuche haben ergeben, dass der Energieverbrauch und die Zeit eines Herstellungstaktes (Zykluszeit) um bis zu 40% reduziert werden können.By the small wall thickness of the cavities made of sheet metal, significantly lower than the aluminum molds used since then is, in comparison to the prior art, the temperature change between "welding" and "cooling / stabilizing" the pellets faster, more even and more energy efficient as in the prior art done. Experiments have shown that the energy consumption and the time of a production cycle (Cycle time) can be reduced by up to 40%.
Haube
- 11
- Kerncore
- 22
- HaubeHood
- 33
- Kavitätcavity
- 44
- Pelletspellets
- 55
- Pfeilarrow
- 66
- Dampfkammersteam chamber
- 77
- Raumroom
- 88th
- DampfanschlussöffnungSteam connection opening
- 99
- Sprühdüsen für Wasserspray nozzles for water
- 1010
- hinteres Maschinenteilrear machinery
- 1111
- Flanschplatteflange
- 1515
- Injektorinjector
- 15'15 '
-
Öffnung
zum Einsetzen des Injektors
15 in die Haube2 Opening for inserting the injector15 in the hood2 - 2020
-
Verstärkungsrippen
an
1 Reinforcing ribs on1 - 2121
-
Verstärkungsrippen
an
2 Reinforcing ribs on2 - 2525
-
Öffnungen
in
1 Openings in1 - 2626
-
Öffnungen
in
2 Openings in2 - 30, 3130 31
-
Düsen
in
1 ,2 für Heißdampf (in1 )Nozzles in1 .2 for superheated steam (in1 ) - KK
-
Pfeil
(Blickrichtung für
2 und3 )Arrow (viewing direction for2 and3 )
ZITATE ENTHALTEN IN DER BESCHREIBUNGQUOTES INCLUDE IN THE DESCRIPTION
Diese Liste der vom Anmelder aufgeführten Dokumente wurde automatisiert erzeugt und ist ausschließlich zur besseren Information des Lesers aufgenommen. Die Liste ist nicht Bestandteil der deutschen Patent- bzw. Gebrauchsmusteranmeldung. Das DPMA übernimmt keinerlei Haftung für etwaige Fehler oder Auslassungen.This list The documents listed by the applicant have been automated generated and is solely for better information recorded by the reader. The list is not part of the German Patent or utility model application. The DPMA takes over no liability for any errors or omissions.
Zitierte PatentliteraturCited patent literature
- - DE 10231430 B4 [0013] - DE 10231430 B4 [0013]
Claims (5)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102007022327A DE102007022327A1 (en) | 2007-05-09 | 2007-05-09 | Tool cavity for production of molded part of foam particle, has core and hood formed from sheet metal i.e. high-grade steel, with thickness of approximately specific millimeters, where core and hood are welded together |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102007022327A DE102007022327A1 (en) | 2007-05-09 | 2007-05-09 | Tool cavity for production of molded part of foam particle, has core and hood formed from sheet metal i.e. high-grade steel, with thickness of approximately specific millimeters, where core and hood are welded together |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102007022327A1 true DE102007022327A1 (en) | 2008-11-13 |
Family
ID=39829442
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE102007022327A Ceased DE102007022327A1 (en) | 2007-05-09 | 2007-05-09 | Tool cavity for production of molded part of foam particle, has core and hood formed from sheet metal i.e. high-grade steel, with thickness of approximately specific millimeters, where core and hood are welded together |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE102007022327A1 (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2010139307A3 (en) * | 2009-06-03 | 2011-02-24 | Otto Wiesmayer | Molded insert for a molded part mold, method for producing a molded part and molded part |
WO2017066238A1 (en) * | 2015-10-12 | 2017-04-20 | Ppg Industries Ohio, Inc. | Method and apparatus for making a polymeric aircraft window panel |
CN111283950A (en) * | 2018-12-06 | 2020-06-16 | 顾志元 | Novel foaming forming die |
NL2024642B1 (en) * | 2019-05-21 | 2020-12-01 | School Of Mechanical Engineering Shaanxi Univ Of Technology | Internal high-pressure forming die and forming method for aircraft tail fin |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3112225A1 (en) * | 1981-03-27 | 1982-10-21 | Bayerische Motoren Werke AG, 8000 München | METHOD FOR PRODUCING MOLDING TOOLS |
DE10231430B4 (en) | 2002-07-11 | 2005-03-17 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Method for the automated forming of thin-walled workpieces |
-
2007
- 2007-05-09 DE DE102007022327A patent/DE102007022327A1/en not_active Ceased
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3112225A1 (en) * | 1981-03-27 | 1982-10-21 | Bayerische Motoren Werke AG, 8000 München | METHOD FOR PRODUCING MOLDING TOOLS |
DE10231430B4 (en) | 2002-07-11 | 2005-03-17 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Method for the automated forming of thin-walled workpieces |
Non-Patent Citations (3)
Title |
---|
Expandierbares Polystyrol (EPS), Kunststofftech- nik, VDI-Verlag, Düsseldorf 1984, ISBN 3-18-404108 -5, S. 117-119 |
Expandierbares Polystyrol (EPS), Kunststofftechnik, VDI-Verlag, Düsseldorf 1984, ISBN 3-18-404108 -5, S. 117-119 * |
Expandierbares Polystyrol EPS, VDI-Gesellschaft Kunststofftechnik, VDI-Verlag, Düsseldorf 1979, ISBN 3-18-404050-X, S. 169-171 * |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2010139307A3 (en) * | 2009-06-03 | 2011-02-24 | Otto Wiesmayer | Molded insert for a molded part mold, method for producing a molded part and molded part |
CN102596531A (en) * | 2009-06-03 | 2012-07-18 | 奥托·威斯迈耶 | Molded insert for a molded part mold, method for producing a molded part and molded part |
EP2923813A1 (en) * | 2009-06-03 | 2015-09-30 | Otto Wiesmayer | Mould insert for a mould, method for producing a mould and moulded article |
CN102596531B (en) * | 2009-06-03 | 2015-12-16 | 奥托·威斯迈耶 | For the mold inserts of moulded parts model, the manufacture method of moulded parts and moulded parts |
US9630350B2 (en) | 2009-06-03 | 2017-04-25 | Otto Wiesmayer | Molded insert for a molded part mold, method for producing a molded part and molded part |
WO2017066238A1 (en) * | 2015-10-12 | 2017-04-20 | Ppg Industries Ohio, Inc. | Method and apparatus for making a polymeric aircraft window panel |
US11110634B2 (en) | 2015-10-12 | 2021-09-07 | Ppg Industries Ohio, Inc. | Method and apparatus for making a polymeric aircraft window panel |
CN111283950A (en) * | 2018-12-06 | 2020-06-16 | 顾志元 | Novel foaming forming die |
NL2024642B1 (en) * | 2019-05-21 | 2020-12-01 | School Of Mechanical Engineering Shaanxi Univ Of Technology | Internal high-pressure forming die and forming method for aircraft tail fin |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
OP8 | Request for examination as to paragraph 44 patent law | ||
8131 | Rejection |