ES2151779B1 - IMPROVEMENTS INTRODUCED IN THE PATENT OF INVENTION N- 9602665, BY: ENHANCED MACHINE FOR COMPACTING SAND MOLDS BY EXPANSIVE AIR IMPACT. - Google Patents

IMPROVEMENTS INTRODUCED IN THE PATENT OF INVENTION N- 9602665, BY: ENHANCED MACHINE FOR COMPACTING SAND MOLDS BY EXPANSIVE AIR IMPACT.

Info

Publication number
ES2151779B1
ES2151779B1 ES009700977A ES9700977A ES2151779B1 ES 2151779 B1 ES2151779 B1 ES 2151779B1 ES 009700977 A ES009700977 A ES 009700977A ES 9700977 A ES9700977 A ES 9700977A ES 2151779 B1 ES2151779 B1 ES 2151779B1
Authority
ES
Spain
Prior art keywords
diffuser
membrane
sand
improvements introduced
sand molds
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 - Fee Related
Application number
ES009700977A
Other languages
Spanish (es)
Other versions
ES2151779A1 (en
Inventor
Erana Agustin Arana
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.)
Loramendi SA
Original Assignee
Loramendi SA
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 Loramendi SA filed Critical Loramendi SA
Priority to DE69707094T priority Critical patent/DE69707094T2/en
Priority to EP97500215A priority patent/EP0849017B1/en
Priority to DK97500215T priority patent/DK0849017T3/en
Priority to CZ19982584A priority patent/CZ292159B6/en
Priority to CN97192344A priority patent/CN1109590C/en
Priority to PL97328531A priority patent/PL185126B1/en
Priority to KR1019980706373A priority patent/KR19990082634A/en
Priority to BR9707555A priority patent/BR9707555A/en
Priority to PCT/ES1997/000306 priority patent/WO1998026887A1/en
Priority to US09/125,231 priority patent/US6145576A/en
Priority to JP10527354A priority patent/JP2000505731A/en
Publication of ES2151779A1 publication Critical patent/ES2151779A1/en
Application granted granted Critical
Publication of ES2151779B1 publication Critical patent/ES2151779B1/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22C—FOUNDRY MOULDING
    • B22C15/00—Moulding machines characterised by the compacting mechanism; Accessories therefor
    • B22C15/28—Compacting by different means acting simultaneously or successively, e.g. preliminary blowing and finally pressing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22C—FOUNDRY MOULDING
    • B22C15/00—Moulding machines characterised by the compacting mechanism; Accessories therefor

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Casting Devices For Molds (AREA)
  • Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)

Abstract

Mejoras introducidas en la patente de invención P 9602665,por: "Máquina mejorada para compactación de moldes de arena por impacto de aire u onda expansiva". La máquina incluye un calderín de presión (1) capaz de suministrar, a través de un difusor (2), aire de soplado a una capa de moldeo, incluyendo un cuerpo valvular (7) solidarizado entre un marco (6) previsto bajo la base del calderín (1) y el difusor (2), siendo aquel de contorno cuadrangular o rectangular y estando fijada en correspondencia con una de sus paredes una membrana (8) fijada por sus zonas marginales a las zonas marginales del cuerpo valvular (7), definiéndose fuera de aquella una cámara envolvente (10) que al ser presurizada provoca la estrangulación de cada membrana (8) junto al asiento (11) y el consiguiente cierre valvular, con la particularidad de que la apertura de la válvula que forma cada membrana (8) con un asiento enfrentado a la misma determina, a través del difusor (2) un chorro de aire que se proyecta contra laarena de la caja de moldeo. Las mejoras se centran en la incorporación de cuatro válvulas (14) actuantes cada una de ellas y simultáneamente sobre una de las membranas (8) para conseguir que la apertura y cierre de las válvulas que forman las membranas (8) con sus asientos (11) se realice al mismo tiempo y se consiga una homogénea compactación de la arena en la caja de moldeo.Improvements introduced in the invention patent P 9602665, for: "Improved machine for compacting sand molds by impact of air or blast wave". The machine includes a pressure boiler (1) capable of supplying, through a diffuser (2), blow air to a molding layer, including a valve body (7) supported between a frame (6) provided under the base of the boiler (1) and the diffuser (2), being that of quadrangular or rectangular contour and being fixed in correspondence with one of its walls a membrane (8) fixed by its marginal zones to the marginal zones of the valvular body (7), being defined outside of it an enveloping chamber (10) that when pressurized causes the strangulation of each membrane (8) next to the seat (11) and the subsequent valve closure, with the particularity that the opening of the valve that forms each membrane ( 8) with a seat facing it determines, through the diffuser (2) an air jet that projects against the sand of the molding box. The improvements focus on the incorporation of four valves (14) acting each of them and simultaneously on one of the membranes (8) to get the opening and closing of the valves that form the membranes (8) with their seats (11 ) is carried out at the same time and a homogeneous compaction of the sand is achieved in the molding box.

ES009700977A 1996-12-17 1997-05-07 IMPROVEMENTS INTRODUCED IN THE PATENT OF INVENTION N- 9602665, BY: ENHANCED MACHINE FOR COMPACTING SAND MOLDS BY EXPANSIVE AIR IMPACT. Expired - Fee Related ES2151779B1 (en)

Priority Applications (11)

Application Number Priority Date Filing Date Title
EP97500215A EP0849017B1 (en) 1996-12-17 1997-12-16 Improved sand mould air impact or blast compacting machine
DK97500215T DK0849017T3 (en) 1996-12-17 1997-12-16 Improved air stroke or impulse sand mold compressor
DE69707094T DE69707094T2 (en) 1996-12-17 1997-12-16 Air pressure pulse-forming machines
CN97192344A CN1109590C (en) 1996-12-17 1997-12-17 Improved machine for compacting sand moulds by air impact or enpansion waves
PL97328531A PL185126B1 (en) 1996-12-17 1997-12-17 Machine for compacting sand moulds with impact rammers or air jet
KR1019980706373A KR19990082634A (en) 1996-12-17 1997-12-17 Sand Mold Air Impact or Blast Compressor Systems
CZ19982584A CZ292159B6 (en) 1996-12-17 1997-12-17 Machine for compacting sand molds by air impacts or air blast
BR9707555A BR9707555A (en) 1996-12-17 1997-12-17 Optimized machine for compacting sand molds by air impact or expansive wave
PCT/ES1997/000306 WO1998026887A1 (en) 1996-12-17 1997-12-17 Improved machine for compacting sand moulds by air impact or expansion waves
US09/125,231 US6145576A (en) 1996-12-17 1997-12-17 Machine for compacting sand moulds by air impact or expansion waves
JP10527354A JP2000505731A (en) 1996-12-17 1997-12-17 Improved sand type air impact or jet compaction machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ES009602665A ES2148020B1 (en) 1996-12-17 1996-12-17 ENHANCED MACHINE FOR COMPACTING SAND MOLDS BY EXPANSIVE AIR IMPACT OR WAVE.

Publications (2)

Publication Number Publication Date
ES2151779A1 ES2151779A1 (en) 2001-01-01
ES2151779B1 true ES2151779B1 (en) 2001-07-01

Family

ID=8297042

Family Applications (2)

Application Number Title Priority Date Filing Date
ES009602665A Expired - Fee Related ES2148020B1 (en) 1996-12-17 1996-12-17 ENHANCED MACHINE FOR COMPACTING SAND MOLDS BY EXPANSIVE AIR IMPACT OR WAVE.
ES009700977A Expired - Fee Related ES2151779B1 (en) 1996-12-17 1997-05-07 IMPROVEMENTS INTRODUCED IN THE PATENT OF INVENTION N- 9602665, BY: ENHANCED MACHINE FOR COMPACTING SAND MOLDS BY EXPANSIVE AIR IMPACT.

Family Applications Before (1)

Application Number Title Priority Date Filing Date
ES009602665A Expired - Fee Related ES2148020B1 (en) 1996-12-17 1996-12-17 ENHANCED MACHINE FOR COMPACTING SAND MOLDS BY EXPANSIVE AIR IMPACT OR WAVE.

Country Status (2)

Country Link
KR (1) KR19990082634A (en)
ES (2) ES2148020B1 (en)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3319030A1 (en) * 1983-05-26 1984-11-29 BMD Badische Maschinenfabrik Durlach GmbH, 7500 Karlsruhe DEVICE FOR COMPRESSING FOUNDRY SAND IN THE GAS PRESSURE METHOD
ES2007886A6 (en) * 1988-05-24 1989-07-01 Lopez Foronda Fernandez Vicent Expansion wave sand moulding process
ES2011685A6 (en) * 1988-10-21 1990-02-01 Lopez Foronda Fernandez Vicent Improvements introduced in air impact molding machines.
DE4114362A1 (en) * 1991-05-02 1992-11-05 Wagner Heinrich Sinto Masch METHOD FOR PRODUCING A SAND FORM
JP3083042B2 (en) * 1994-05-12 2000-09-04 新東工業株式会社 Mold making method

Also Published As

Publication number Publication date
ES2148020B1 (en) 2001-04-16
KR19990082634A (en) 1999-11-25
ES2151779A1 (en) 2001-01-01
ES2148020A1 (en) 2000-10-01

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