EP0106219A2 - Dispositif pour compacter des matériaux de moulage granulaires - Google Patents

Dispositif pour compacter des matériaux de moulage granulaires Download PDF

Info

Publication number
EP0106219A2
EP0106219A2 EP83109608A EP83109608A EP0106219A2 EP 0106219 A2 EP0106219 A2 EP 0106219A2 EP 83109608 A EP83109608 A EP 83109608A EP 83109608 A EP83109608 A EP 83109608A EP 0106219 A2 EP0106219 A2 EP 0106219A2
Authority
EP
European Patent Office
Prior art keywords
molding
adapter
section
opening
pressure chamber
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.)
Withdrawn
Application number
EP83109608A
Other languages
German (de)
English (en)
Other versions
EP0106219A3 (fr
Inventor
Kurt Fischer
Georges Louys
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.)
Georg Fischer AG
Original Assignee
Georg Fischer AG
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 Georg Fischer AG filed Critical Georg Fischer AG
Publication of EP0106219A2 publication Critical patent/EP0106219A2/fr
Publication of EP0106219A3 publication Critical patent/EP0106219A3/fr
Withdrawn legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22C—FOUNDRY MOULDING
    • B22C15/00—Moulding machines characterised by the compacting mechanism; Accessories therefor

Definitions

  • the invention relates to a device for compacting granular molding materials according to the preamble of claim 1.
  • a large number of methods and devices are known for the compression of molded materials, in which compression takes place under the action of a pressure surge from an exothermic reaction of a fuel mixture or a high-pressure gas.
  • a method is known from US Pat. No. 3,170,202 in which a combustion chamber receiving a fuel mixture is brought over a molding device and, after a closed system has been formed, the exothermic reaction is triggered and the molding material mass is compressed by the pressure surge which arises.
  • Another method DT-PS 19 61 234 uses a pressure chamber for storing a high-tension gas, which is detachably connected to a molding device and thus forms a closed system, in which the compressed air, which is high in the pressure chamber, suddenly relaxes above the molding compound by opening a valve and thus compresses the molding compound.
  • FIG. 1 shows a device according to the invention with a pressure chamber 1 for an exothermic reaction, the lower end of which forms an insert 2 with a through opening 3, which is inserted in an adapter 4.
  • the adapter 4 is supported by supports 5.
  • the passage opening 3 can have a round as well as a polygonal cross section and can also be conical or cylindrical. Likewise, it is advantageous to provide insert 2 that can be replaced.
  • the opening cross section of the through opening 3 is expediently provided variably so that a large number of mold box formats can be used.
  • the upper end of the pressure chamber 1 is formed by a cover 6 on which a motor 7 for a blower 8 projecting into the pressure chamber 1 is inserted.
  • a guide tube 9 directed towards its outer diameter is used.
  • a supply line 10 for a fuel, e.g. Natural gas introduced which is fed via a metering device 11 from a fuel source.
  • a spark plug 12 is inserted, by means of which, controlled by an ignition control 13, the exothermic reaction required for a pressure surge is triggered.
  • the spark plug 12 can also be used in the area of the guide tube 9.
  • the space delimited by the supports 5 and the adapter 4 is provided for receiving a shaping device.
  • the molding device essentially consists of a filling frame 16, a molding box 17 and a model plate 18 with model arrangement 19 which are placed on a lifting table 20.
  • a roller conveyor 21 is used for feeding and transporting the form casas ten 17, for example.
  • FIG 2 shows an embodiment with a pressure chamber 25 for the use of a high-tension gas e.g. Compressed air to achieve a gas pressure surge.
  • a high-tension gas e.g. Compressed air to achieve a gas pressure surge.
  • the pressure chamber 25 is placed on an insert 26 with through openings 27, which is held by an adapter 28.
  • the adapter 28, which is designed as a plate, is supported by supports 29, together with the pressure chamber 25 and the adapter 28, a compressor unit is formed and, in connection with the molding device, a closed system.
  • the upper end of the pressure chamber 25 is formed by a cover 30 in which a thrust piston drive 31 is inserted.
  • the thrust piston drive 31 is provided for the actuation of a valve 32 covering the through opening 27.
  • Both gaseous or liquid media can be used as the operating medium for the thrust piston drive 31, and electrically operated devices can also be used.
  • a vent line 33 leads from the passage opening 27 via a valve 34 and a possible muffler 35 into the ambient atmosphere.
  • valve 37 is arranged a molding device whose representation shows the time after the compression of the molding material 22, whereas FIG. 1 shows the time at which the molding material mass 22 is in the non-compressed state.
  • the molding device used here corresponds to the same as described in FIG. 1.
  • the mode of operation of the device shown in FIG. 1 essentially consists in that a metered amount of molding material is poured into a previously assembled molding device and this is brought over the roller conveyor onto the lifting table and then raised under the passage opening to the insert plate in a sealing manner.
  • the metering device delivers a metered amount of fuel into the pressure chamber, which combines with the ambient air present in the pressure chamber space to form a fuel mixture.
  • the blower runs with the help of which the fuel-air mixture is forced to move and during the movement, by triggering an ignition from the ignition control, an exothermic reaction is triggered which leads to a pressure surge. After the reaction has taken place, the molding device can be lowered and the burned gases can be removed through the exposed opening.
  • a gaseous medium for example compressed air
  • a pressure control After connecting the aforementioned parts and thus forming a closed system, a gaseous medium, for example compressed air, is fed through the supply line via the pressure control and brought to a compression pressure.
  • a gaseous medium for example compressed air
  • the valve is opened abruptly and the pressure relaxes through the surface of the molding material and forms a pressure surge.
  • the valve After compression has taken place, the valve is closed and the pressure medium remaining above the surface of the molding material is discharged through the vent line.
  • the outgoing compressed air is to be braked by using a silencer.
  • venting valve is closed and the molding device is lowered.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Casting Devices For Molds (AREA)
  • Solid Fuels And Fuel-Associated Substances (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
EP83109608A 1982-10-13 1983-09-27 Dispositif pour compacter des matériaux de moulage granulaires Withdrawn EP0106219A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH5982/82 1982-10-13
CH598282A CH660987A5 (de) 1982-10-13 1982-10-13 Vorrichtung zum verdichten von koernigen formstoffen.

Publications (2)

Publication Number Publication Date
EP0106219A2 true EP0106219A2 (fr) 1984-04-25
EP0106219A3 EP0106219A3 (fr) 1985-05-15

Family

ID=4302467

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83109608A Withdrawn EP0106219A3 (fr) 1982-10-13 1983-09-27 Dispositif pour compacter des matériaux de moulage granulaires

Country Status (4)

Country Link
EP (1) EP0106219A3 (fr)
CA (1) CA1205975A (fr)
CH (1) CH660987A5 (fr)
DD (1) DD211971A5 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH675553A5 (fr) * 1988-01-14 1990-10-15 Fischer Ag Georg

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2877522A (en) * 1955-04-14 1959-03-17 Pettibone Mulliken Corp Mold blowing apparatus
US3089206A (en) * 1958-01-13 1963-05-14 Osborn Mfg Co Blow and squeeze molding machine and method of molding
DE3202395A1 (de) * 1981-01-28 1982-08-26 BMD Badische Maschinenfabrik Durlach GmbH, 7500 Karlsruhe Verfahren und vorrichtung zum pneumatischen verdichten von formsand

Also Published As

Publication number Publication date
EP0106219A3 (fr) 1985-05-15
CH660987A5 (de) 1987-06-30
DD211971A5 (de) 1984-08-01
CA1205975A (fr) 1986-06-17

Similar Documents

Publication Publication Date Title
EP0065807B1 (fr) Procédé pour bourrer et ligaturer des boyaux fermés à une extrémité sur une machine de remplissage et de fermeture
DE2146556C2 (de) Preßvorrichtung zum Verdichten von unaufbereitetem Müll
DE3700396C2 (fr)
DE2602370A1 (de) Verfahren und vorrichtung zum erzeugen von mikrospaerischen teilchen
DE3008235C2 (de) Verfahren und Vorrichtung zur Herstellung von Gießformteilen und -kernen
DE3511283A1 (de) Verfahren und vorrichtung zum verdichten von giessereiformstoffen
DE3926591A1 (de) Vorrichtung zum fuellen von behaeltern
DE1806608A1 (de) Verfahren und Anordnung zwecks Herstellung von Pulverkoerpern im isostatischen Druckverfahren
LU81946A1 (de) Verfahren zum verdichten von koernigen stoffen
DE3911694A1 (de) Vorrichtung zur zufuhr von harzmaterial zu einer kunstharz-formteilpresse
DD238745A5 (de) Verfahren zur herstellung von formteilen
EP0790090A2 (fr) Machine de coulée à dépression
DE69112524T2 (de) Verfahren und Vorrichtung zum Verdichten von Giessereiformstoffen.
DE2933869C2 (de) Verfahren und Vorrichtung zum Herstellen eines unteren Formteils
CH660987A5 (de) Vorrichtung zum verdichten von koernigen formstoffen.
DE2554414C2 (de) Verfahren und Vorrichtung zum Herstellen von Sandgießformen
DE3307245C2 (de) Verfahren zum Befüllen eines Behälters mit einem unter Druck stehenden Medium
DE2710481C3 (de) Verfahren und Vorrichtung zum Vakuumbzw. Unterdruckformen einer Gießform
EP0127069A2 (fr) Dispositif pour serrer le sable de fonderie en procédant par pression de gaz
DE2455901C2 (de) Vorrichtung zum Füllen und Verschließen einer Gaskammer, insbesondere einer Gasfeder
DE2727297A1 (de) Verfahren und einrichtung zur herstellung von giessereisandformen
CH640757A5 (de) Verfahren und einrichtung zum verdichten von formstoffen.
DE2403199B2 (fr)
DE4110860A1 (de) Verfahren und vorrichtung zum verdichten von koernigen formstoffen
DE3321439A1 (de) Verfahren und vorrichtung zum verdichten von koernigen formstoffen

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

17P Request for examination filed

Effective date: 19830927

AK Designated contracting states

Designated state(s): AT CH DE FR GB IT LI SE

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Designated state(s): AT CH DE FR GB IT LI SE

17Q First examination report despatched

Effective date: 19860905

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 19870315

RIN1 Information on inventor provided before grant (corrected)

Inventor name: FISCHER, KURT

Inventor name: LOUYS, GEORGES