EP0868985A1 - Form zum Pressen von Formkörpern aus plastischen Massen - Google Patents
Form zum Pressen von Formkörpern aus plastischen Massen Download PDFInfo
- Publication number
- EP0868985A1 EP0868985A1 EP97105311A EP97105311A EP0868985A1 EP 0868985 A1 EP0868985 A1 EP 0868985A1 EP 97105311 A EP97105311 A EP 97105311A EP 97105311 A EP97105311 A EP 97105311A EP 0868985 A1 EP0868985 A1 EP 0868985A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- mold
- core
- voltage source
- edge strip
- mold according
- 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
- 239000004033 plastic Substances 0.000 title claims description 10
- 238000003825 pressing Methods 0.000 title claims description 6
- 229920001971 elastomer Polymers 0.000 claims abstract description 17
- 229910052751 metal Inorganic materials 0.000 claims abstract description 13
- 239000002184 metal Substances 0.000 claims abstract description 13
- 239000012528 membrane Substances 0.000 claims abstract description 9
- 229910001092 metal group alloy Inorganic materials 0.000 claims abstract description 3
- 239000000806 elastomer Substances 0.000 claims abstract 2
- 239000000463 material Substances 0.000 claims abstract 2
- 238000000034 method Methods 0.000 claims description 8
- 229920003002 synthetic resin Polymers 0.000 claims description 8
- 239000000057 synthetic resin Substances 0.000 claims description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 6
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 229910010293 ceramic material Inorganic materials 0.000 claims description 3
- 229910052759 nickel Inorganic materials 0.000 claims description 3
- PXHVJJICTQNCMI-UHFFFAOYSA-N nickel Substances [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 238000007493 shaping process Methods 0.000 abstract description 3
- 229920005989 resin Polymers 0.000 abstract description 2
- 239000011347 resin Substances 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 5
- 239000002131 composite material Substances 0.000 description 4
- 238000000465 moulding Methods 0.000 description 4
- 229910000838 Al alloy Inorganic materials 0.000 description 3
- 239000000919 ceramic Substances 0.000 description 3
- 239000011449 brick Substances 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 150000001875 compounds Chemical group 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000011343 solid material Substances 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B5/00—Producing shaped articles from the material in moulds or on moulding surfaces, carried or formed by, in or on conveyors irrespective of the manner of shaping
- B28B5/10—Producing shaped articles from the material in moulds or on moulding surfaces, carried or formed by, in or on conveyors irrespective of the manner of shaping in moulds carried on the circumference of a rotating drum
- B28B5/12—Producing shaped articles from the material in moulds or on moulding surfaces, carried or formed by, in or on conveyors irrespective of the manner of shaping in moulds carried on the circumference of a rotating drum intermittently rotated
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B13/00—Feeding the unshaped material to moulds or apparatus for producing shaped articles; Discharging shaped articles from such moulds or apparatus
- B28B13/04—Discharging the shaped articles
- B28B13/06—Removing the shaped articles from moulds
- B28B13/065—Removing the shaped articles from moulds by applying electric current or other means of discharging, e.g. pneumatic or hydraulic discharging means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B7/00—Moulds; Cores; Mandrels
- B28B7/34—Moulds, cores, or mandrels of special material, e.g. destructible materials
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B7/00—Moulds; Cores; Mandrels
- B28B7/36—Linings or coatings, e.g. removable, absorbent linings, permanent anti-stick coatings; Linings becoming a non-permanent layer of the moulded article
- B28B7/364—Linings or coatings, e.g. removable, absorbent linings, permanent anti-stick coatings; Linings becoming a non-permanent layer of the moulded article of plastic material or rubber
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B7/00—Moulds; Cores; Mandrels
- B28B7/40—Moulds; Cores; Mandrels characterised by means for modifying the properties of the moulding material
- B28B7/44—Moulds; Cores; Mandrels characterised by means for modifying the properties of the moulding material for treating with gases or degassing, e.g. for de-aerating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B7/00—Moulds; Cores; Mandrels
- B28B7/40—Moulds; Cores; Mandrels characterised by means for modifying the properties of the moulding material
- B28B7/46—Moulds; Cores; Mandrels characterised by means for modifying the properties of the moulding material for humidifying or dehumidifying
Definitions
- the invention relates to a mold for pressing moldings from plastic masses, especially ceramic Material according to the preamble of claim 1.
- the invention has for its object a form for To create moldings from plastic masses, the mold halves made of composite material with a metal Support part and a shaping core made of synthetic resin and nevertheless by applying electrical current a detachment of the pressed molded body from the mold easier.
- the two edge strips have the mold halves in the closed state of the mold distance filled by the ceramic mass.
- a voltage source is connected on one of the side moldings and on the other half of the mold. Then electricity flows from the sidebar over the ceramic mass between the two sidebars, the second sidebar and its current-carrying Connections to the metal support part of the others Mold half.
- This process can be done by reversing the polarity Voltage source, preferably a DC voltage source be repeated. Surprisingly, this is enough "Electric shocks" generated only in the edge area of the mold halves Removal effect for detaching the molded body from the Mold halves after the pressing process.
- a process for removing molded articles from plastic Masses from a mold according to claim 1 has according to the invention the features of claim 9.
- the negative pole in succession via a changeover relay to the sidebar of one half of the mold and the other Half of the mold is created.
- the edge strips are made of chrome-nickel steel, for example.
- the edge strips are preferably in an area outside of the mold cavity and thus surround the mold cavity.
- Air and / or water from the mold cavity are advantageous by measures according to one of claims 7 or 8 aspirated.
- an upper shape has a support part 2 made of a Aluminum alloy and a core 4 made of synthetic resin on the cavity side of an intermediate layer made of a rubber membrane 6 is spanned.
- An edge strip 8 made of chrome-nickel steel is by means of countersunk screws 10 against Support part 2 and the core 4 while clamping the edge 12 of the blanket 6 stretched.
- the sidebar 8 runs around the Shape around.
- the lower mold has the same structure as that Upper form, and its components are therefore the same Reference numbers referred to, but indexed with a dash are. So the lower mold has a support part 2 'from one Aluminum alloy with a 4 'core made of synthetic resin is lined. The mold cavity side of the core 4 'is covered by a preformed rubber membrane 6 '. The edge 12 'of this rubber membrane is by means of an edge strip 8' Countersunk screws 10 'clamped to the support part 2'. The Countersunk screws 10, 10 'are with their heads 11, 11' in the edge strips 8, 8 'arranged sunk.
- holes 3, 3 ' are provided in the support parts 2, 2', through which a suction effect can be exerted, which through the porous cores 4, 4 'through the rubber blanket 6 or the rubber membrane 6 'can communicate.
- At least one of the support parts 2, 2 ', in the exemplary embodiment shown the lower support part 2 'and the associated one Core 4 'with rubber membrane 6' are made of hollow screws 16, 17 passes through a hose assembly 18 to a passage 19 in the support part 2 'for discharging Air and / or water from the mold cavity are tightly connected are.
- fine openings in the Area of the holes 3,3 'in the rubber membranes 6,6' provided be so that then a suction of air and / or water is made possible from the mold cavity via the holes 3,3 '.
- FIG. 2 shows a drum arrangement 20 with five sub-molds with support parts 2 'and one in the top position
- Upper mold 2 which has an insulation 21 from a Press ram 22 is acted upon.
- an electrical circuit comprising a DC voltage source 24 shown, which via a changeover relay 26 on the one hand with the edge strip 8 of the upper shape and on the other hand with the shaft 28 of the drum arrangement 20 and thus with the metal support part 2 'of the lower mold is electrically connected.
- the polarity of the negative pole and Positive pole of the DC power source 24 are switched.
Landscapes
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
- Press-Shaping Or Shaping Using Conveyers (AREA)
Abstract
Description
- Fig. 1
- einen Teilschnitt durch eine Form gemäß der Erfindung in geschlossenem Zustand,
- Fig. 2
- eine schematische Darstellung einer Trommelanordnung mit insgesamt fünf Unterformen und einer Oberform sowie eine Schaltungsanordnung zum Aufbringen von Spannungsstößen auf die Unterform und die Oberform, die im einzelnen gemäß Fig. 1 ausgebildet sind.
Claims (9)
- Form zum Pressen von Formkörpern aus plastischen Massen, insbesondere keramischem Material, mit zwei Formhälften, die jeweils ein Stützteil (2,2') aus Leichtmetall oder einer Leichtmetallegierung, und einen Kern (4,4') aus Kunstharz aufweisen und jeweils mit einem Pol einer elektrischen Spannungsquelle (24) verbindbar sind, wobei die Ränder der beiden Formhälften in geschlossenem Zustand der Form einen durch die plastische Masse ausgefüllten Abstand (14) voneinander haben, dadurch gekennzeichnet, daß jeder Kern (4,4') formhohlraumseitig von einer Zwischenlage (6,6') aus einem Elastomer, wie einem Gummituch (6) oder einer Gummimembran (6') abgedeckt ist, daß jede Zwischenlage (6,6') zwischen einer formhohlraumseitigen, metallenen Randleiste (8,8'), die mit der zugehörigen Formhälfte elektrisch leitend verbunden ist, und der Formhälfte eingespannt ist und daß der eine Pol der Spannungsquelle (24) über eine Randleiste (8 oder 8') und der andere Pol direkt mit der zugehörigen Formhälfte verbindbar sind.
- Form nach Anspruch 1, dadurch gekennzeichnet, daß die Randleiste (8,8') mit der zugehörigen Formhälfte (2,2') über Schrauben (10,10') lösbar verbunden ist.
- Form nach Anspruch 2, dadurch gekennzeichnet, daß die Schrauben (10,10') Senkköpfe (11,11') haben, die in die Randleisten (8,8') versenkt sind.
- Form nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß die Randleisten (8,8') in einem Bereich außerhalb des Formhohlraumes angeordnet sind.
- Form nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß die Randleisten aus Chrom-Nickelstahl bestehen.
- Form nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß die beiden Formhälften mit zum Formhohlraum hin mundenden Löchern (3; 3') zum Ansaugen der Zwischenlage (6,6') an die Formseite des Kerns (4,4') mittels über die Löcher zugeführter Unterdruckluft versehen sind.
- Form nach Anspruch 6, dadurch gekenn -zeichnet, daß die Zwischenlage (6, 6') im Bereich der Löcher (3; 3') mit feinen Öffnungen zum Durchlassen von Luft und Wasser ausgestattet sind, wobei Luft und/oder Wasser über die Löcher (3;3') absaugbar sind.
- Form nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, daß mindestens eine der beiden Zwischenlagen (6') mittels Hohlschrauben (16,17) an der zugehörigen Formhälfte (2',4') gehalten ist, wobei über diese Hohlschrauben Luft und Wasser aus dem Formhohlraum abgeführt werden können.
- Verfahren zum Lösen von Formkörpern aus plastischen Massen aus einer Form nach einem der Ansprüche 1 bis 8, dadurch gekennzeichnet, daß die Pole einer Gleichspannungsquelle (24) mittels eines Umschaltrelais (26) abwechselnd an die eine Randleiste (8,8') und die andere Formhälfte (2',2) angelegt werden, wobei jeweils für eine vorbestimmte, zweckmäßige Zeitdauer ein Stromstoß aufgebracht wird.
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP19970105311 EP0868985B1 (de) | 1997-03-27 | 1997-03-27 | Form zum Pressen von Formkörpern aus plastischen Massen |
ES97105311T ES2125730T3 (es) | 1997-03-27 | 1997-03-27 | Molde para prensar cuerpos conformados a base de masas plasticas. |
DE59700058T DE59700058D1 (de) | 1997-03-27 | 1997-03-27 | Form zum Pressen von Formkörpern aus plastischen Massen |
PCT/EP1998/001736 WO1998043793A1 (de) | 1997-03-27 | 1998-03-24 | Form zum pressen von formkörpern aus plastischen massen |
IDP980448A ID20113A (id) | 1997-03-27 | 1998-03-27 | Cetakan untuk pengepresan benda-benda cetak dari bahan-bahan plastis |
GR990400877T GR3029789T3 (en) | 1997-03-27 | 1999-03-23 | Mould for pressing articles from plastic masses |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP19970105311 EP0868985B1 (de) | 1997-03-27 | 1997-03-27 | Form zum Pressen von Formkörpern aus plastischen Massen |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0868985A1 true EP0868985A1 (de) | 1998-10-07 |
EP0868985B1 EP0868985B1 (de) | 1998-12-23 |
Family
ID=8226648
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19970105311 Expired - Lifetime EP0868985B1 (de) | 1997-03-27 | 1997-03-27 | Form zum Pressen von Formkörpern aus plastischen Massen |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP0868985B1 (de) |
DE (1) | DE59700058D1 (de) |
ES (1) | ES2125730T3 (de) |
GR (1) | GR3029789T3 (de) |
ID (1) | ID20113A (de) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19847087C1 (de) * | 1998-10-13 | 2000-01-05 | Rieter Werke Haendle | Verfahren zum Herstellen einer Preßform, insbesondere zum Erzeugen von Dachziegeln, und Preßform |
EP3486056A1 (de) * | 2017-11-16 | 2019-05-22 | HÄNDLE GmbH Maschinen und Anlagenbau | Dachziegelpresse, oberform und zwischenplatte |
CN112895103A (zh) * | 2021-01-23 | 2021-06-04 | 邓杰 | 一种混凝土多孔砖浇注成型方法 |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR25418E (fr) * | 1921-09-27 | 1923-03-07 | Moules ébarbeurs pour tuiles plates | |
DE1224649B (de) * | 1961-01-12 | 1966-09-08 | Jean Barnier Laurenties | Hohlform zum Formen keramischer Massen |
GB2067461A (en) * | 1980-01-23 | 1981-07-30 | Hutschenreuther | Process for the manufacture of dry-pressed mouldings and apparatus for carrying out this process |
DE8618713U1 (de) * | 1986-07-12 | 1986-09-18 | Ottensteiner Kunststoff GmbH, 4422 Ahaus | Preßform für Dachsteine |
EP0250012A2 (de) * | 1986-06-18 | 1987-12-23 | Fonderie Officine Meccaniche BONGIOANNI S.p.A. | Vorrichtung zum Befestigen einer elastomeren Membran an einer Oberform zum Herstellen von Keramikgegenständen |
EP0505296A1 (de) * | 1991-03-21 | 1992-09-23 | L'industrielle Regionale Du Batiment | Verfahren zum Herstellen von Gegenständen aus einem giessfähigen Material in feuchter, pastöser Form, und Pressform zur Durchführung des Verfahrens |
-
1997
- 1997-03-27 DE DE59700058T patent/DE59700058D1/de not_active Expired - Fee Related
- 1997-03-27 ES ES97105311T patent/ES2125730T3/es not_active Expired - Lifetime
- 1997-03-27 EP EP19970105311 patent/EP0868985B1/de not_active Expired - Lifetime
-
1998
- 1998-03-27 ID IDP980448A patent/ID20113A/id unknown
-
1999
- 1999-03-23 GR GR990400877T patent/GR3029789T3/el unknown
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR25418E (fr) * | 1921-09-27 | 1923-03-07 | Moules ébarbeurs pour tuiles plates | |
DE1224649B (de) * | 1961-01-12 | 1966-09-08 | Jean Barnier Laurenties | Hohlform zum Formen keramischer Massen |
GB2067461A (en) * | 1980-01-23 | 1981-07-30 | Hutschenreuther | Process for the manufacture of dry-pressed mouldings and apparatus for carrying out this process |
EP0250012A2 (de) * | 1986-06-18 | 1987-12-23 | Fonderie Officine Meccaniche BONGIOANNI S.p.A. | Vorrichtung zum Befestigen einer elastomeren Membran an einer Oberform zum Herstellen von Keramikgegenständen |
DE8618713U1 (de) * | 1986-07-12 | 1986-09-18 | Ottensteiner Kunststoff GmbH, 4422 Ahaus | Preßform für Dachsteine |
EP0505296A1 (de) * | 1991-03-21 | 1992-09-23 | L'industrielle Regionale Du Batiment | Verfahren zum Herstellen von Gegenständen aus einem giessfähigen Material in feuchter, pastöser Form, und Pressform zur Durchführung des Verfahrens |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19847087C1 (de) * | 1998-10-13 | 2000-01-05 | Rieter Werke Haendle | Verfahren zum Herstellen einer Preßform, insbesondere zum Erzeugen von Dachziegeln, und Preßform |
EP1008428A2 (de) * | 1998-10-13 | 2000-06-14 | Rieter-Werke Händle Kg | Verfahren zum Herstellen einer Pressform, insbesondere zum Erzeugen von Dachziegeln, und Pressform |
EP1008428A3 (de) * | 1998-10-13 | 2001-09-26 | Rieter-Werke Händle Kg | Verfahren zum Herstellen einer Pressform, insbesondere zum Erzeugen von Dachziegeln, und Pressform |
EP3486056A1 (de) * | 2017-11-16 | 2019-05-22 | HÄNDLE GmbH Maschinen und Anlagenbau | Dachziegelpresse, oberform und zwischenplatte |
CN112895103A (zh) * | 2021-01-23 | 2021-06-04 | 邓杰 | 一种混凝土多孔砖浇注成型方法 |
Also Published As
Publication number | Publication date |
---|---|
DE59700058D1 (de) | 1999-02-04 |
EP0868985B1 (de) | 1998-12-23 |
ID20113A (id) | 1998-10-01 |
ES2125730T3 (es) | 1999-03-01 |
GR3029789T3 (en) | 1999-06-30 |
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