EP0353119A1 - Modellplatte für die Gestaltung von Formen, bestimmt zur Herstellung von Glasdichtungen mittels Giessereisand bei Vorhandensein einer Wulst in der Gegenformschräge - Google Patents
Modellplatte für die Gestaltung von Formen, bestimmt zur Herstellung von Glasdichtungen mittels Giessereisand bei Vorhandensein einer Wulst in der Gegenformschräge Download PDFInfo
- Publication number
- EP0353119A1 EP0353119A1 EP89401935A EP89401935A EP0353119A1 EP 0353119 A1 EP0353119 A1 EP 0353119A1 EP 89401935 A EP89401935 A EP 89401935A EP 89401935 A EP89401935 A EP 89401935A EP 0353119 A1 EP0353119 A1 EP 0353119A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- model plate
- movable
- plate according
- bead
- sand
- 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
Links
- 239000004576 sand Substances 0.000 title claims description 18
- 238000004519 manufacturing process Methods 0.000 title claims description 5
- 239000011521 glass Substances 0.000 title claims description 3
- 239000011324 bead Substances 0.000 claims abstract description 13
- 229920001971 elastomer Polymers 0.000 claims abstract description 12
- 239000000806 elastomer Substances 0.000 claims abstract description 10
- 238000005056 compaction Methods 0.000 claims abstract description 7
- 230000000694 effects Effects 0.000 claims abstract description 6
- 238000000605 extraction Methods 0.000 claims description 6
- 230000006835 compression Effects 0.000 claims description 3
- 238000007906 compression Methods 0.000 claims description 3
- 238000005452 bending Methods 0.000 description 3
- 238000010073 coating (rubber) Methods 0.000 description 1
- 230000006837 decompression Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000002688 persistence Effects 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C7/00—Patterns; Manufacture thereof so far as not provided for in other classes
- B22C7/005—Adjustable, sectional, expandable or flexible patterns
Definitions
- the invention relates to the manufacture by foundry in sand of parts having undercut parts, and more particularly of glass seals or similar parts having a protrusion in the form of an annular bead.
- the object of the invention is to eliminate the above drawbacks, that is to say to produce a model plate forming in the sand the location for a bead undercut during the compression of the sand, but not having no undercut during extraction of the mold or model, and whose geometry of the shape thus obtained is perfectly controlled and independent of the vagaries of operating conditions.
- the invention essentially consists in constituting the deformable part in the form of an annular ring pinched between a fixed external part and an axially movable internal part.
- each model of the plate into three parts, including a fixed external part having the external profile of the part from the joint plane until the birth of the bead, and having a bore slightly larger inside than that of the part, an interior part embedded in the model plate and movable axially over a short stroke defined by mechanical stops between an extended position, towards which it is returned by elastic means, and a retracted position towards which is pushed back by the pressure of the sand during compaction, this movable inner part having internally a blind bore to the inner diameter of the part to be molded and the bottom of which is in said retracted position at the reference plane of the model plate, the external surface of this internal part being adjusted to slide in the internal bore of the external part over at least the height of the latter and ending at the upper part with a rim projecting towards the outside, and finally an elastomer ring mounted on the periphery of this interior part, between said rim and the end of the exterior part, this elastomer ring having a shape at
- This annular elastomer ring as well as the location which is intended for it, preferably have a section ensuring its retention, for example a dovetail section.
- model plate 1 which generally comprises several models of which only one is shown.
- this plate is fixed by usual means and, possibly, embedded, the external part 2, the part projecting above the reference plane 3 of the model plate 1 has an external profile 4 representing the external form of the part to be obtained. from the reference plane 3 to point 5 which corresponds to the birth of the undercut bead.
- this outer part 2 is delimited by a bore 6 with a diameter slightly greater than the bore of the part to be molded.
- the movable inner part 7 has a blind inner bore 13 whose diameter is that of the part to be molded, and the bottom 14 of which is, in the retracted position according to FIG. 2, at the exact level of the reference plane 3 of the model plate 1.
- the surface outer 15 of this inner part 7 is adjusted to slide inside the bore 6 of the fixed outer part 2, at least over the entire height of the latter, and the cylindrical wall 16 of thin thickness thus formed between the bores 6 and 13 ends at its free end with a flange 17 protruding outward without ever exceeding the diameter of the circle 5 representing the limit of the bead.
- the upper part of the cylindrical surface 15 of the wall 16 defines, with the facing surfaces 18 of the upper edge of the fixed part 2 and 19 of the rim 17 of the moving part 7, the three sides of a section, preferably in dovetail shape, into which an annular elastomer ring 20 is inserted, the outside diameter of which, in the rest position, that is to say therefore in the extended position shown in FIG. 1, does not not exceed or is less than the diameter of the circle 5 defined above, so as to have no undercut.
- This outer diameter of the ring 20 is even preferably slightly smaller than that of the circle 5, so as to compensate for an always possible persistence of the deformation of the elastomer.
- the annular ring 20 resumes its shape without undercut of Figures 1 and 3, thanks to its own elasticity aided by the force of the springs 10, which allows this extraction in an easy manner without risk of damage the form of sand obtained, and without requiring the cohesion of this sand to be particularly hard.
- the sand mold thus formed is then closed and the metal is poured in the usual way to manufacture the parts which have exactly the desired shape with great precision and great regularity of shape.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Casting Devices For Molds (AREA)
- Molds, Cores, And Manufacturing Methods Thereof (AREA)
- Hybrid Cells (AREA)
- Joining Of Glass To Other Materials (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT89401935T ATE88930T1 (de) | 1988-07-07 | 1989-07-06 | Modellplatte fuer die gestaltung von formen, bestimmt zur herstellung von glasdichtungen mittels giessereisand bei vorhandensein einer wulst in der gegenformschraege. |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR8809257A FR2633851B1 (fr) | 1988-07-07 | 1988-07-07 | Plaque modele pour la realisation de moules destines a la fabrication par fonderie au sable de joints-glaces ou pieces similaires presentant un bourrelet en contre-depouille |
FR8809257 | 1988-07-07 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0353119A1 true EP0353119A1 (de) | 1990-01-31 |
EP0353119B1 EP0353119B1 (de) | 1993-05-05 |
Family
ID=9368211
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP89401935A Expired - Lifetime EP0353119B1 (de) | 1988-07-07 | 1989-07-06 | Modellplatte für die Gestaltung von Formen, bestimmt zur Herstellung von Glasdichtungen mittels Giessereisand bei Vorhandensein einer Wulst in der Gegenformschräge |
Country Status (6)
Country | Link |
---|---|
US (1) | US4952282A (de) |
EP (1) | EP0353119B1 (de) |
AT (1) | ATE88930T1 (de) |
DE (1) | DE68906323T2 (de) |
ES (1) | ES2040482T3 (de) |
FR (1) | FR2633851B1 (de) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ES2183667B1 (es) * | 1999-11-19 | 2004-05-16 | Loramendi, S.A. | Maquina de moldeo de motas, perfeccionada. |
US8373368B2 (en) * | 2009-02-09 | 2013-02-12 | Ioan Achiriloaie | Energy storage device |
CN104985115B (zh) * | 2015-06-30 | 2017-12-26 | 重庆市合川区云天机械制造有限公司 | 制作油泵柱塞砂模的可拆分模具 |
CN106694813A (zh) * | 2015-11-13 | 2017-05-24 | 成都兴宇精密铸造有限公司 | 一种铸造组合模具 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2020157A1 (de) * | 1969-04-25 | 1970-10-29 | Caterpillar Tractor Co | Verbundmodell und Verfahren zur Herstellung von Praezisions-Sandgiessformen |
FR2147163A1 (de) * | 1971-07-26 | 1973-03-09 | Caterpillar Tractor Co | |
DE2940171C2 (de) * | 1979-10-04 | 1984-04-05 | Goetze Ag, 5093 Burscheid | Modell für die Herstellung von Gießformen |
DE3602049A1 (de) * | 1986-01-24 | 1987-07-30 | Goetze Ag | Modell fuer die herstellung von giessformen |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3624758A (en) * | 1968-07-12 | 1971-11-30 | Caterpillar Tractor Co | Method of making a sand mold with a back draft |
US3773100A (en) * | 1969-12-01 | 1973-11-20 | Hooker Chemical Corp | Molding box comprising pattern frame having internal lining strips |
AU544242B2 (en) * | 1980-10-20 | 1985-05-23 | Deere & Company | Inserting cores |
-
1988
- 1988-07-07 FR FR8809257A patent/FR2633851B1/fr not_active Expired - Lifetime
-
1989
- 1989-07-06 DE DE8989401935T patent/DE68906323T2/de not_active Expired - Fee Related
- 1989-07-06 US US07/376,008 patent/US4952282A/en not_active Expired - Fee Related
- 1989-07-06 EP EP89401935A patent/EP0353119B1/de not_active Expired - Lifetime
- 1989-07-06 AT AT89401935T patent/ATE88930T1/de not_active IP Right Cessation
- 1989-07-06 ES ES198989401935T patent/ES2040482T3/es not_active Expired - Lifetime
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2020157A1 (de) * | 1969-04-25 | 1970-10-29 | Caterpillar Tractor Co | Verbundmodell und Verfahren zur Herstellung von Praezisions-Sandgiessformen |
FR2147163A1 (de) * | 1971-07-26 | 1973-03-09 | Caterpillar Tractor Co | |
DE2940171C2 (de) * | 1979-10-04 | 1984-04-05 | Goetze Ag, 5093 Burscheid | Modell für die Herstellung von Gießformen |
DE3602049A1 (de) * | 1986-01-24 | 1987-07-30 | Goetze Ag | Modell fuer die herstellung von giessformen |
Also Published As
Publication number | Publication date |
---|---|
FR2633851A1 (fr) | 1990-01-12 |
FR2633851B1 (fr) | 1991-05-17 |
EP0353119B1 (de) | 1993-05-05 |
DE68906323T2 (de) | 1993-08-19 |
ES2040482T3 (es) | 1993-10-16 |
ATE88930T1 (de) | 1993-05-15 |
US4952282A (en) | 1990-08-28 |
DE68906323D1 (de) | 1993-06-09 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP0015202B1 (de) | Ringförmige Dichtung für das Giessen ophthalmischer oder optischer Linsen aus organischem Material und Verfahren zur Anwendung dieser Dichtung | |
EP0207114B1 (de) | Vorrichtung zum auftragen eines pastenartigen erzeugnisses, insbesondere eines kosmetischen erzeugnisses wie lippenstift, und rohrförmiges element für eine solche vorrichtung | |
EP0098224B1 (de) | Knochenprothese und deren Herstellung | |
EP3527104B1 (de) | Mechanismus für einen behälter eines kosmetikprodukts, insbesondere einer stift eines lippenstift, und behälter, der einen solchen mechanismus umfasst | |
FR3066082B1 (fr) | Baton de produit cosmetique comprenant deux compositions ayant une surface en relief, procede et dispositif de fabrication d'un tel baton de produit cosmetique | |
LU86192A1 (fr) | Moule pour bandages pneumatiques | |
FR2611232A1 (fr) | Piston pour moteurs a combustion interne et machines analogues | |
FR2806933A1 (fr) | Bouton-poussoir a effet ressort | |
EP0522374B1 (de) | Reifenform und Verfahren zum Formen von Reifen mit dieser Form | |
FR2767176A1 (fr) | Unite a piston-et-cylindre | |
EP0353119B1 (de) | Modellplatte für die Gestaltung von Formen, bestimmt zur Herstellung von Glasdichtungen mittels Giessereisand bei Vorhandensein einer Wulst in der Gegenformschräge | |
EP4007557A1 (de) | Stift eines kosmetikprodukts mit zwei zusammensetzungen, verfahren und vorrichtung zur herstellung solch eines stifts eines kosmetikprodukts | |
FR3028730A1 (fr) | Applicateur de rouge a levres presentant des faces concaves | |
EP3889067A1 (de) | Nachfüllbare verpackungsvorrichtung eines kosmetikprodukts und entsprechende nachfüllpackung | |
EP0349367A1 (de) | Elektrischer Schalter für einen pneumatischen Bremsservomotor | |
EP0056213B1 (de) | Stopfen aus Schaumkunststoffen | |
FR3108588A1 (fr) | Dispositif rechargeable de conditionnement d’un produit cosmétique et coque associée | |
EP0287425A1 (de) | Verfahren zur Herstellung eines Kipphebels eines Verbrennungsmotors und Aufbau der Giessform zur Durchführung des Herstellungsverfahrens | |
EP0738578A1 (de) | Verfahren und Form zum Spritzgiessen einer Scheibe einer Beleuchtungs- oder Signalisierungsvorrichtung eines Kraftfahrzeuges | |
EP1058793A1 (de) | Hydraulischer kupplngsgeberzylinder mit verbesserter, axialer befestigung der kolbenstange am kolben | |
FR3111261A1 (fr) | Dispositif de conditionnement d’un bloc de produit cosmétique | |
FR2639861A1 (fr) | Moyens d'assemblage de deux elements oscillants et en particulier des lames d'un ciseau | |
EP2866100A1 (de) | Dichtung für Uhr | |
FR2479072A1 (fr) | Element moule comprenant une levre saillante rabattable sans formation de surepaisseur, roulette de meuble realisee a partir de cet element et procede et moule pour sa fabrication | |
CA2503873A1 (fr) | Mecanisme de rouge a levres ou analogue a freinage par relief de la gaine interne |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AT BE CH DE ES FR GB GR IT LI LU NL SE |
|
17P | Request for examination filed |
Effective date: 19900321 |
|
17Q | First examination report despatched |
Effective date: 19920702 |
|
GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): AT BE CH DE ES FR GB GR IT LI LU NL SE |
|
REF | Corresponds to: |
Ref document number: 88930 Country of ref document: AT Date of ref document: 19930515 Kind code of ref document: T |
|
ITF | It: translation for a ep patent filed |
Owner name: BARZANO' E ZANARDO MILANO S.P.A. |
|
GBT | Gb: translation of ep patent filed (gb section 77(6)(a)/1977) |
Effective date: 19930505 |
|
REF | Corresponds to: |
Ref document number: 68906323 Country of ref document: DE Date of ref document: 19930609 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: AT Payment date: 19930730 Year of fee payment: 5 Ref country code: CH Payment date: 19930730 Year of fee payment: 5 Ref country code: ES Payment date: 19930730 Year of fee payment: 5 Ref country code: GR Payment date: 19930730 Year of fee payment: 5 Ref country code: LU Payment date: 19930730 Year of fee payment: 5 Ref country code: SE Payment date: 19930730 Year of fee payment: 5 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: NL Payment date: 19930731 Year of fee payment: 5 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: BE Payment date: 19930818 Year of fee payment: 5 |
|
REG | Reference to a national code |
Ref country code: GR Ref legal event code: FG4A Free format text: 3008420 |
|
REG | Reference to a national code |
Ref country code: ES Ref legal event code: FG2A Ref document number: 2040482 Country of ref document: ES Kind code of ref document: T3 |
|
EPTA | Lu: last paid annual fee | ||
BECA | Be: change of holder's address |
Free format text: 930505 SOC. *MANCELLE DE FONDERIE:ROUTE DU LUDE B.P. NO. 75, F-72233 ARNAGE |
|
PLBE | No opposition filed within time limit |
Free format text: ORIGINAL CODE: 0009261 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT |
|
26N | No opposition filed | ||
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: LU Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 19940706 Ref country code: AT Effective date: 19940706 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: SE Effective date: 19940707 Ref country code: ES Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 19940707 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: CH Effective date: 19940731 Ref country code: BE Effective date: 19940731 Ref country code: LI Effective date: 19940731 |
|
BERE | Be: lapsed |
Owner name: SOC. MANCELLE DE FONDERIE Effective date: 19940731 |
|
EUG | Se: european patent has lapsed |
Ref document number: 89401935.5 Effective date: 19950210 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: GR Free format text: THE PATENT HAS BEEN ANNULLED BY A DECISION OF A NATIONAL AUTHORITY Effective date: 19950131 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: NL Effective date: 19950201 |
|
NLV4 | Nl: lapsed or anulled due to non-payment of the annual fee | ||
REG | Reference to a national code |
Ref country code: CH Ref legal event code: PL |
|
EUG | Se: european patent has lapsed |
Ref document number: 89401935.5 |
|
REG | Reference to a national code |
Ref country code: GR Ref legal event code: MM2A Free format text: 3008420 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: FR Payment date: 19970730 Year of fee payment: 9 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: GB Payment date: 19970812 Year of fee payment: 9 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: DE Payment date: 19970929 Year of fee payment: 9 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: GB Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 19980706 |
|
GBPC | Gb: european patent ceased through non-payment of renewal fee |
Effective date: 19980706 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: FR Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 19990331 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: DE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 19990501 |
|
REG | Reference to a national code |
Ref country code: FR Ref legal event code: ST |
|
REG | Reference to a national code |
Ref country code: ES Ref legal event code: FD2A Effective date: 19950810 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: IT Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED. Effective date: 20050706 |