EP0357871B1 - Machine à mouler - Google Patents

Machine à mouler Download PDF

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Publication number
EP0357871B1
EP0357871B1 EP89108368A EP89108368A EP0357871B1 EP 0357871 B1 EP0357871 B1 EP 0357871B1 EP 89108368 A EP89108368 A EP 89108368A EP 89108368 A EP89108368 A EP 89108368A EP 0357871 B1 EP0357871 B1 EP 0357871B1
Authority
EP
European Patent Office
Prior art keywords
lifting
machine according
moulding machine
piston
upright
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 - Lifetime
Application number
EP89108368A
Other languages
German (de)
English (en)
Other versions
EP0357871A2 (fr
EP0357871A3 (fr
Inventor
Herbert Dipl.-Ing. Grolla
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.)
Heinrich Wagner Sinto Maschinenfabrik GmbH
Original Assignee
Heinrich Wagner Sinto Maschinenfabrik GmbH
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 Heinrich Wagner Sinto Maschinenfabrik GmbH filed Critical Heinrich Wagner Sinto Maschinenfabrik GmbH
Publication of EP0357871A2 publication Critical patent/EP0357871A2/fr
Publication of EP0357871A3 publication Critical patent/EP0357871A3/fr
Application granted granted Critical
Publication of EP0357871B1 publication Critical patent/EP0357871B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22C—FOUNDRY MOULDING
    • B22C11/00—Moulding machines characterised by the relative arrangement of the parts of same
    • B22C11/02—Machines in which the moulds are moved during a cycle of successive operations
    • B22C11/04—Machines in which the moulds are moved during a cycle of successive operations by a horizontal rotary table or carrier

Definitions

  • the invention relates to a molding machine with a stand, on which a rotary table unit comprising at least two tables is mounted, with a compression device formed on the stand and at least one lifting device, according to the preamble of claim 1.
  • the work steps required to produce a mold include placing a molding box on a model plate and placing a sand filling frame on the molding box. These two operations are usually carried out by hand. Then through the sand filling frame Molding sand is poured into the molding box, this usually being done by means of a manually operated conveyor. After adequate filling of the molding sand, the molding sand is pre-compacted in the mold, usually using vibrators. After a counter-press plate has been swung in, the molding sand is compacted again in a pressing process.
  • the known molding machines also prove to be disadvantageous with regard to the compression methods used, since, in particular in the case of smaller molding machines, the mold is precompressed by shaking, which on the one hand leads to a high level of noise emission and on the other hand leads to high wear on both the molding machines and the molding boxes and Model leads.
  • the invention has for its object to provide a molding machine of the type mentioned, which allows a rational and time-saving production of a ready-to-cast mold with a simple structure and simple, reliable handling.
  • the object is achieved in that in the area of each table, integrated into the turntable unit, a lifting device and a supporting device for a molding box are provided.
  • the molding machine according to the invention is distinguished by a number of considerable advantages.
  • the rotary table unit - comprising several tables - makes it possible to carry out predetermined work steps independently of one another on each of the tables. For example, the molding sand can be compacted on each of the tables, while molding sand is filled in on the other table or a finished mold is lifted off.
  • By using two tables it is also possible to form an upper box shape or a lower box shape on each table generate so that a complete castable mold can be produced on a molding machine.
  • Another advantage of the molding machine according to the invention is that the operator can carry out his work without any interruption in time, since the further work processes can be carried out on the other table during the compression process.
  • Another advantage of the molding machine according to the invention results from the fact that it is independent of the method used for compacting the molding sand or molding material, so that it is possible to add the molding sand in a conventional manner by shaking as well as by means of an airflow press molding method condense.
  • the turntable unit includes a support device for a molding box in the area of the tables.
  • the support device transfers the forces applied when compacting the molding sand directly to the stand, the turntable unit itself is not loaded. This leads to the possibility of dimensioning the turntable unit much smaller.
  • the support device preferably has a supporting piston mounted below the table, which can be brought into abutment against the stand, and a lifting piston which moves the table against the compression device arranged in the upper region of the stand.
  • the compression process thus includes both supporting the molding box or the table on the stand and lifting the molding box or the table against the compression device arranged in the upper region of the stand.
  • This configuration gives the possibility, in addition to the already mentioned support, which avoids the application of force to the turntable unit, of a space-saving configuration of the molding machine and, in particular, to provide sufficient space in the area in which the table or the turntable unit is pivoted with respect to the stand.
  • the table can be raised, it is not necessary to lower the compression device itself or to approach the molding box. Rather, the compression device can be attached essentially stationary on the upper area of the stand.
  • the support piston comprises a tubular lifting cylinder which can be displaced to the table, in which the reciprocating piston, which is in the form of a double-acting piston, is arranged, the piston rod of the reciprocating piston being connected to the table.
  • the reciprocating piston which is in the form of a double-acting piston
  • the table is connected to a table guide rod which can be displaced in a recess in the rotary table unit.
  • the lifting device is preferably designed such that a lifting cylinder is mounted on the turntable unit in the region of the table, the piston rod of which is connected to lifting pins via a lifting cross-piece connected to this.
  • a lifting cylinder is mounted on the turntable unit in the region of the table, the piston rod of which is connected to lifting pins via a lifting cross-piece connected to this.
  • Lifting guide rods are preferably mounted on the lifting crossbar, each having a carrier attached to the free ends thereof, which carries the lifting pin.
  • This embodiment has the advantage that adaptation to different mold boxes or different mold box sizes can be carried out very quickly and easily, and it is also possible according to the invention to process mold boxes of different sizes on the turntable unit.
  • the piston rod of the lifting piston is provided at its upper end with a coupling body which can be brought into engagement with the table guide rod.
  • a coupling body which can be brought into engagement with its lifting traverse is arranged at the upper end of the piston rod of the lifting device.
  • the lifting device is arranged in each case on a working position of the table assigned to the filling side of the stand.
  • the coupling body can be positively inserted into a groove in the lifting crossmember or the table guide rod , which allows a free horizontal relative movement, but no vertical relative movement.
  • the coupling body can be designed, for example, in the form of a thickened extension, which can be introduced into a dovetail-shaped or U-shaped groove.
  • the stand is essentially C-shaped in the side view.
  • the turntable unit can be pivoted about a vertical axis, the pivot axis being arranged on the outer region of the stand, so that in each case one table of the turntable unit can be pivoted into the free space of the stand.
  • both a compact construction of the molding machine and a construction of particular strength are possible, since the stand receives additional support via the vertical axis of the turntable unit.
  • a filling station, a lifting station and / or an auxiliary compaction station can also be arranged on the outer region of the stand, in order to lift off the finished mold in the area of the table which is not under the compacting device arranged on the stand, to put on a new molding box, to arrange a filling frame on this, to feed and pre-compress molding sand.
  • the compression device is designed such that it comprises a press plate which is displaceably arranged in the interior of a press box which can be pressurized with compressed air. It is thus possible to use an air-flow press molding process in which there is no need to shake the molding box.
  • the press plate is connected to a double-acting plunger and a guide rod guided in the stand. This embodiment ensures both precise guidance of the press plate and simple hydraulic controllability.
  • the compression device comprises a press vibrating device.
  • the molding machine according to the invention has a stand 1 which has a substantially C-shaped cross section in the side view.
  • the free ends of the stand 1 are connected via a vertical axis 36 which is fixedly mounted on the stand 1 and carries a turntable unit 3 which can be pivoted about the axis 36.
  • the turntable unit 3 has two tables 9, which are each mounted on the top of the turntable unit 3.
  • a model plate 22 can be placed on each of the tables 9, which is provided with a model 23 in the usual way. As shown in FIG. 1, a molding box 24, which forms a molding cavity 27, can be placed on the model plate 22. A filling frame 25 is usually placed on the molding box 24, which facilitates the filling of the molding sand.
  • a support device 10-13 is arranged on the turntable unit 3 below the table 9.
  • This comprises a reciprocating piston 12 which is connected to a piston rod 11, which in turn is attached to the table 9.
  • the lifting piston 12 is designed in the form of a double-acting piston and can be moved in a lifting cylinder 10, the lower region of which has a supporting piston 13.
  • the supporting piston 13 of the lifting cylinder 10 which is mounted on the rotary table unit 3 and is displaceable relative to it, is first moved downward until it is in contact with a supporting plate 26 of the stand 1.
  • this pressurization displaces the reciprocating piston 12 and also the table 9 upwards, so that the filling frame 25 is pressed against a compression device 15-20, 28, 35, which is formed on the upper region of the stand 1.
  • the compression device 15-20,28,35 is subsequently in individual still described.
  • it has at least one table guide rod 14 which can be displaced in a recess in the rotary table unit 3.
  • the compression device 15-20, 28, 35 comprises a press box 15 which is provided with a recess in which a press plate 16 is arranged.
  • the recess of the press box 15 is adapted to the size of the filling frame 25 or the molding box 24.
  • a press frame 20 can also be arranged on the underside of the press box 15, as shown in FIG.
  • the underside of the press frame 20 is provided with a press seal 21 which ensures an airtight seal when the fill frame 25 bears against the press frame 20.
  • the press frame 15 is firmly connected to the stand 1 and has an air inlet 19 through which compressed air can be pressed into the interior 28 of the press box 15 and thus into the mold cavity 27.
  • the press plate 16 is connected via a piston rod to a press piston 35 which is movable in a press cylinder 17 and is in the form of a double-acting piston. It is thus possible to lower or raise the press plate 16. In order to prevent rotation of the press plate 16, it is connected to a guide rod 18 which is guided displaceably in a recess in the stand 1 or the press box 15.
  • the compression device 15-20, 28, 35 described above thus permits the use of an airflow compression molding method.
  • a lifting device 4-8, 34 is also provided in the area under each table 9, which comprises a lifting cylinder 4, a lifting crossbar 5 connected to it and lifting guide rods 6 which are connected to the lifting crossbar 5.
  • a lifting cylinder 4 By actuating the lifting cylinder 4, it is thus possible to lower or raise the lifting traverse 5 and thus the lifting guide rods 6.
  • a carrier 7 At the upper ends of the lifting guide rods 6, a carrier 7 is releasably attached, on which a lifting pin 8 is mounted. By adjusting the position of the carriers 7, it is possible to adapt the lifting device 4-8, 34 to the respective shape and configuration of the molding boxes 24 or the filling frames 25.
  • the piston which is connected to the lifting cross-bar 5 via a piston rod 34, enables the finished mold or the molding box 24 to be lifted in a precisely controllable manner from the model plate 22.
  • the pivoting of the turntable unit 3 can be done manually in smaller molding machines, but it is also possible to provide an auxiliary drive for pivoting the turntable unit 3. Furthermore, locking devices can be provided in order to ensure an exact positioning of the tables 9. Since the reciprocating piston 12 is in the form of a double-acting piston, it is ensured in the position ready for pivoting shown in FIG. 1 that the supporting piston 13 does not abut against the supporting plate 26, so that the rotary table unit 3 can pivot freely.
  • FIG. 2 shows an end view of the molding machine shown in FIG. 1, but the illustration of the molding box 24 and the filling frame 25 has been omitted.
  • FIG. 3 shows a plan view of the molding machine according to the invention, which is likewise not equipped with a molding box 24 or a filling frame 25.
  • the arrows 32 and 33 indicate the pivotability of the turntable unit 3.
  • the mold cavity 27 and thus the molding sand located therein are pre-compressed by introducing compressed air through the air inlet 19. Subsequently, compression is carried out by means of the pressure plate 16. The interior 28 is then vented via the air inlet 19, whereupon the pressure plate 16 is withdrawn by the piston 35.
  • the piston rod 11 and the piston connected to the piston rod 34 each have a coupling body 40 at their upper end according to FIG. which is designed in the form of a thickened head region and can be inserted into a groove 39 of the element to be coupled.
  • the groove 39 extends across the respective element, so that when the turntable unit 3 rotates, the Coupling body 40 can be inserted into the groove 39. It is therefore not necessary to take additional clutch measures and / or to disengage or engage a clutch manually.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Casting Devices For Molds (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)
  • Permanent Magnet Type Synchronous Machine (AREA)
  • Presses And Accessory Devices Thereof (AREA)

Claims (15)

  1. Machine à mouler comprenant :
       un montant (1), sur lequel est placé un ensemble à tables tournantes (3) comportant au moins deux tables (9),
    - un dispositif de compactage (15-20,28,35) incorporé au montant
    - et au moins un dispositif de démoulage (4-8,34),
       caractérisée en ce que, dans la zone de chaque table (9), sont prévus, intégrés dans l'ensemble à tables tournantes (3), chaque fois un dispositif de démoulage (4-8,34), et chaque fois un dispositif de soutien (10-13) pour un châssis de moule (24).
  2. Machine à mouler selon la revendication 1, caractérisée en ce que le dispositif de soutien(10-13) comporte, placé au-dessous de la table (9), un piston de soutien (13) que l'on peut mettre en appui contre le montant (1) et un piston élévateur (12) amenant la table (9) contre le dispositif de compression (15-20,28,35) installé dans la zone supérieure du montant (1)
  3. Machine à mouler selon la revendication 2, caractérisée en ce que le piston de soutien (13) comporte un cylindre élévateur (10) en forme de tube, déplaçable par rapport à la table, dans lequel est disposé le piston élévateur (12), qui est construit sous forme de piston à double effet, la tige (11) de ce piston élévateur (12) étant reliée à la table (9).
  4. Machine à mouler selon l'une des revendications 2 ou 3, caractérisée en ce que la table (9) est reliée à une tige de guidage de table (14), qui peut coulisser dans un creux de l'ensemble à tables tournantes (3).
  5. Machine à mouler selon l'une des revendications 1 à 4, caractérisée en ce qu'un vérin de démoulage (4), dont la tige de piston (34) est liée, par une traverse de démoulage (5) reliée à celle-ci, à des chandelles de démoulage (8) est placé sur l'ensemble à tables tournantes (3) dans la zone de la table (9).
  6. Machine à mouler selon la revendication 5, caractérisée en ce que, des tiges-guides élévatrices, sur les extrémités libres de chacunes desquelles est fixé un support (7) qui porte la chandelle de démoulage (8) sont placés sur la traverse de démoulage (45).
  7. Machine à mouler selon la revendication 5, caractérisée en ce que la tige de piston (11) est munie à son extrémité supérieure d'un corps d'accouplement (40) susceptible d'être mis en prise avec la tige de guidage de la table (14).
  8. Machine à mouler selon l'une des revendications 1 à 7, caractérisée en ce que le dispositif de démoulage (4-8,34) est installé chaque fois dans une position de travail de la table (9) affectée au côté remplissage (29) du montant (1).
  9. Machine à mouler selon l'une des revendications 1 à 7, caractérisée en ce qu'un corps d'accouplement (40) susceptible d'être mis en prise avec la traverse de démoulage (5) est disposé à l'extrémité supérieure de la tige de piston (34) du dispositif de démoulage (4-8,34).
  10. Machine à mouler selon l'une des revendications 8 ou 9, caractérisée en ce que le corps d'accouplement (40) peut être inséré à crabotement dans une rainure (39) de la traverse (5) ou de la tige de guidage de la table (14), qui permet un mouvement relatif horizonal libre, mais pas de mouvement relatif vertical.
  11. Machine à mouler selon l'une des revendications 1 à 7, caractérisée en ce que le montant (1) en vue latérale, a essentiellement une forme de C, et que l'ensemble à tables tournantes (3) peut pivoter autour d'un axe vertical (36) et comporte deux tables (9).
  12. Machine à mouler selon l'une des revendications 1 à 7, caractérisée en ce que, dans la zone extérieure du montant (1), sont installées une station de remplissage, une station de démoulage (31)et/ou une station auxiliaire de compression.
  13. Machine à mouler selon l'une des revendications 1 à 7, caractérisée en ce que le dispositif de compactage (15-20,28,35) comporte une plaque de serrage(16) qui est disposée avec possibilité de coulisser dans l'espace intérieur (18) d'une boîte de compactage (15) susceptible d'être actionnée à l'air comprimé.
  14. Machine à mouler selon la revendication 13, caractérisée en ce que la plaque de serrage(16) est reliée à un piston de compression à double effet (35) ainsi qu'à une barre de guidage (18) guidée dans le montant (1).
  15. Machine à mouler selon l'une des revendications 1 à 14, caractérisée en ce que le dispositif de compactage (15-20,28,35) comporte un dispositif de compactage à secousses.
EP89108368A 1988-09-07 1989-05-10 Machine à mouler Expired - Lifetime EP0357871B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3830331 1988-09-07
DE3830331A DE3830331A1 (de) 1988-09-07 1988-09-07 Formmaschine

Publications (3)

Publication Number Publication Date
EP0357871A2 EP0357871A2 (fr) 1990-03-14
EP0357871A3 EP0357871A3 (fr) 1991-07-31
EP0357871B1 true EP0357871B1 (fr) 1995-03-01

Family

ID=6362416

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89108368A Expired - Lifetime EP0357871B1 (fr) 1988-09-07 1989-05-10 Machine à mouler

Country Status (5)

Country Link
US (1) US5127816A (fr)
EP (1) EP0357871B1 (fr)
AT (1) ATE119089T1 (fr)
DE (3) DE8817014U1 (fr)
ES (1) ES2072274T3 (fr)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4305128A1 (de) * 1993-02-19 1994-08-25 Wagner Heinrich Sinto Masch Formmaschine
DE4305129A1 (de) * 1993-02-19 1994-08-25 Wagner Heinrich Sinto Masch Formmaschine
DE4342364C1 (de) * 1993-12-11 1994-10-13 Hottinger Adolf Masch Vorrichtung zum Schießen von Gießereikernen oder -formen
EP2151290B1 (fr) * 2007-06-01 2017-11-29 Sintokogio, Ltd. Equipement de moulage d'un moule avec châssis de moulage, et procédé de moulage d'un moule avec châssis de moulage
KR101380426B1 (ko) * 2008-07-21 2014-04-01 텍 틴 웡 포름알데히드를 함유하지 않는 성형물 및 관련 부분의 제조방법
JP5626639B2 (ja) * 2010-08-09 2014-11-19 新東工業株式会社 鋳型造型方法
CN110842141B (zh) * 2019-11-29 2020-11-17 安庆海威尔机械有限公司 活塞环砂型成型模具
CN110947919B (zh) * 2019-12-12 2020-11-17 安庆海威尔机械有限公司 一种脱模机构

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DE548756C (de) * 1930-03-04 1932-04-18 Alfred Baillot Drehtischformpresse
DE820186C (de) * 1949-08-30 1951-11-08 Badische Maschinenfabrik A G Formmaschine mit einem in waagerechter Ebene schwenkbaren Drehtisch
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DE1752932U (de) * 1957-07-22 1957-09-26 Kabel Vogel & Schemmann Ag Maschinen zur herstellung von giessereiformen.
US3577610A (en) * 1968-04-16 1971-05-04 Little Inc A Apparatus for manufacturing prestressed concrete members
DE1801314A1 (de) * 1968-10-04 1970-05-06 Marker Hannes Spitzenhaltevorrichtung fuer Sicherheits-Skibindungen
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JPS6268712A (ja) * 1985-09-20 1987-03-28 Toyoda Gosei Co Ltd 成形機の型開閉装置

Also Published As

Publication number Publication date
ES2072274T3 (es) 1995-07-16
EP0357871A2 (fr) 1990-03-14
US5127816A (en) 1992-07-07
ATE119089T1 (de) 1995-03-15
DE3830331C2 (fr) 1992-07-02
EP0357871A3 (fr) 1991-07-31
DE58909051D1 (de) 1995-04-06
DE3830331A1 (de) 1990-03-08
DE8817014U1 (de) 1991-11-21

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