DK164776B - COOLING AND DEFORMING APPLIANCES FOR SANDFORM CASTED OBJECTS - Google Patents

COOLING AND DEFORMING APPLIANCES FOR SANDFORM CASTED OBJECTS Download PDF

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Publication number
DK164776B
DK164776B DK058388A DK58388A DK164776B DK 164776 B DK164776 B DK 164776B DK 058388 A DK058388 A DK 058388A DK 58388 A DK58388 A DK 58388A DK 164776 B DK164776 B DK 164776B
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DK
Denmark
Prior art keywords
drum
roller
rollers
elastomeric material
cooling
Prior art date
Application number
DK058388A
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Danish (da)
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DK58388A (en
DK58388D0 (en
DK164776C (en
Inventor
Hans Christian Christiansen
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Dansk Ind Syndikat
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 Dansk Ind Syndikat filed Critical Dansk Ind Syndikat
Publication of DK58388D0 publication Critical patent/DK58388D0/en
Priority to DK058388A priority Critical patent/DK164776C/en
Priority to ES198989100981T priority patent/ES2034409T3/en
Priority to DE8989100981T priority patent/DE68902484T2/en
Priority to EP89100981A priority patent/EP0326876B1/en
Priority to AT89100981T priority patent/ATE79577T1/en
Priority to CN89100617A priority patent/CN1009712B/en
Priority to BR898900462A priority patent/BR8900462A/en
Publication of DK58388A publication Critical patent/DK58388A/en
Publication of DK164776B publication Critical patent/DK164776B/en
Application granted granted Critical
Publication of DK164776C publication Critical patent/DK164776C/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D31/00—Cutting-off surplus material, e.g. gates; Cleaning and working on castings
    • B22D31/002—Cleaning, working on castings
    • B22D31/007—Tumbling mills
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22C—FOUNDRY MOULDING
    • B22C5/00—Machines or devices specially designed for dressing or handling the mould material so far as specially adapted for that purpose
    • B22C5/08—Machines or devices specially designed for dressing or handling the mould material so far as specially adapted for that purpose by sprinkling, cooling, or drying
    • B22C5/085—Cooling or drying the sand together with the castings

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Molds, Cores, And Manufacturing Methods Thereof (AREA)
  • Rolls And Other Rotary Bodies (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)
  • Heating, Cooling, Or Curing Plastics Or The Like In General (AREA)
  • Disintegrating Or Milling (AREA)
  • Tires In General (AREA)
  • Underground Or Underwater Handling Of Building Materials (AREA)
  • Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)

Abstract

In an apparatus for cooling and stripping of objects cast in and contained in sand moulds, said apparatus being of the kind comprising a drum (1) supported for rotation about a substantially horizontal axis (0) with at least two rolling surfaces or rolling surface members (2) shaped on or secured to the drum (1) bearing on at least four support wheels (3), of which at least one is adapted to be driven and thus make the drum (1) rotate, said support wheels (3) at least partially consisting of an elastomeric material, the new feature consists in that each support wheel (3) consists of a single substantially circularly-cylindrical rim (56) of rigid material, such as steel, about which there are placed at least three rolling tyres (55) of elastomeric material, the axial width of which diminishes with increasing radius. This arrangement makes it possible to reduce maintenance costs and to achieve a highly desired sound and shock absorption using relatively low-costs means.

Description

iin

DK 164776 BDK 164776 B

Opfindelsen angår et køle- og afformningsapparat af den i krav l's indledning angivne art.The invention relates to a cooling and deforming apparatus of the kind set forth in the preamble of claim 1.

Et apparat af denne art kendes fra beskrivelsen til dansk 5 patentansøgning nr. 2518/82 (DK-patentskrift nr. 161948).An apparatus of this kind is known from the description of Danish patent application no. 2518/82 (DK patent no. 161948).

I denne ansøgning er det ikke nærmere angivet, hvorledes bærerullerne skal være udformet, for at den ønskede reduktion i vedligeholdelsen og den ønskede lyd- og chokabsorption opnås, men ^ ansøgningen omfatter mulig-10 heden af at varmeisolere rullefladerne i forhold til tromlekappen med henblik på at forlænge levetiden for de af syntetisk harpiks bestående ruller.This application does not specify how the carrier rolls should be designed to achieve the desired reduction in maintenance and sound and shock absorption, but the application includes the possibility of heat insulating the roller surfaces relative to the drum sheath for the purpose of to extend the life of the synthetic resin rolls.

Det er på denne baggrund opfindelsens formål at anvise udformningen af et apparat af den indledningsvis ; nævnte 15 art, hvormed den ønskede reduktion i vedligeholdelsen og den ønskede lyd- og chokabsorption kan opnås med enkle midler, uden at det er nødvendigt at foretage en kostbar og i mange tilfælde meget besværlig varmeisolering af rullefladerne, og dette formål opnås ved et apparat, der 20 tillige udviser de i krav l's kendetegnende del angivne træk. Ved at opbygge hvert bærehjul af en enkelt cirkulærcylindrisk fælg opnås en enkel og derfor billig udformning, og ved at forsyne denne fælg med mindst tre rulleringe med radialt udad aftagende bredde i aksial-25 retningen opnås en ensartet fordeling af anlægstrykket mellem rullefladeorganet og hvert bærehjul, idet der mellem tilstødende rulleringe dannes et mellemrum, hvori hver rullering kan ekspandere i aksialretningen, når den belastes af anlægstrykket fra rullefladeorganet. I modsat 30 fald - dvs. dersom den eftergivende del af bærehjulet var udformet i ét stykke - ville materialet i nærheden af midten møde større modstand mod aksialudvidelse end materialet ved begge flanker, hvorfor det specifikke anlægstryk vil blive størst på midten af bærehjulet.It is, therefore, the object of the invention to provide an initial design of an apparatus; said kind by which the desired reduction in maintenance and the desired sound and shock absorption can be achieved by simple means without the necessity of costly and in many cases very difficult thermal insulation of the rolling surfaces, and this object is achieved by an apparatus, which also exhibits the features of claim 1. By constructing each support wheel of a single circular cylindrical rim, a simple and therefore inexpensive design is obtained, and by providing this rim with at least three radially outwardly decreasing widths in the axial direction, a uniform distribution of abutment pressure between the roller face member and each carrier wheel is obtained. forming a gap between adjacent rollers in which each roll can expand in the axial direction as it is loaded by the abutment pressure from the rolling surface member. In the opposite 30 cases - ie. if the resilient part of the carrier was designed in one piece - the material near the center would face greater resistance to axial expansion than the material at both flanks, so the specific abutment pressure would be greatest at the center of the carrier.

35 Rulleringene får på grund af mellemrummene en større overflade, hvilket medfører bedre køling og dermed en læn-Due to the gaps, the rollers get a larger surface, which results in better cooling and thus a longer surface.

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2 gere levetid for rulleringene, som normalt vil bestå af organisk materiale, f.eks. kunstgummi eller elastomer plast, hvorfor en varmeisolering af rullefladerne normalt 5 vil være unødvendig.2 have a longer life for the rollers, which will normally consist of organic material, e.g. synthetic rubber or elastomeric plastic, therefore a thermal insulation of the roller surfaces will normally be unnecessary.

I det apparat, der kendes fra ovennævnte beskrivelse til dansk patentansøgning nr. 2518/82, omfatter hvert ' rulle-fladeorgan et rullesvøb, der er fastgjort til den ydre omkreds af to rundtgående og i hovedsagen plane bæreringe, 10 hvis indre omkreds er fastgjort til tromlen, idet bæreringenes yderkanter er fastgjort til rullesvøbenes kanter. Set i aksialsnit svarer rullesvøbet i en sådan anordning til en bjælke, der er eftergivende indspændt ved enderne, og som derfor ved belastning udviser en ikke 15 ubetydelig nedbøjning. Ved større tromler med bredere rullesvøb opstår der kritiske bøjningsspændinger med overhængende fare for træthedsbrud. Ved den i krav 2 omhandlede udførelsesform, hvori rullesvøbet svarer til en bjælke, der er understøttet ved punkter inden for enderne, 20 opnås en ikke ubetydelig formindskelse af både, denne i nedbøjning og bøjningsspændingerne, og dermed en jævnere fordeling af trykket mellem rullefladeorganet og de bærehjul, som den hviler på og drives af, således at de ovenfor omtalte fordele, der kan opnås ved de nye træk 25 ifølge krav 1, kan udnyttes fuldt ud.In the apparatus known from the above description for Danish Patent Application No. 2518/82, each roller surface member comprises a roller wrapper attached to the outer circumference of two circumferential and generally planar carriers 10 whose inner circumference is fixed to the drum, the outer edges of the bearings being attached to the edges of the rollers. Seen in axial section, the roller sleeve in such a device corresponds to a beam which is resiliently clamped at the ends and which therefore under load exhibits a not insignificant deflection. For larger drums with wider roll wraps, critical bending stresses occur with imminent danger of fatigue fracture. In the embodiment according to claim 2, in which the roller sheath corresponds to a beam supported at points within the ends, a not insignificant reduction of both this deflection and the bending stresses is achieved, and thus a more even distribution of the pressure between the roller surface member and the carrier wheels on which it rests and is driven so that the above-mentioned benefits that can be obtained by the new features 25 of claim 1 can be fully utilized.

Opfindelsen skal i det følgende forklares nærmere under henvisning til tegningen, på hvilken fig. 1 i perspektiv viser et udførelseseksempel på et apparat ifølge opfindelsen, 30 fig. 2 er et snit efter linien II-II i fig. 1, fig. 3 er et snit efter linien III-III i fig. 1, og fig. 4 er et snit efter linien IV-IV i fig. 1.The invention will now be explained in more detail with reference to the drawing, in which: 1 is a perspective view of an embodiment of an apparatus according to the invention; FIG. 2 is a section along line II-II of FIG. 1, FIG. 3 is a sectional view taken along line III-III of FIG. 1, and FIG. 4 is a sectional view taken along line IV-IV of FIG. First

Det på tegningen viste apparat indbefatter ;i det væsentlige en tromle 1, hvis forende la er cylindrisk ogThe apparatus shown in the drawing includes: essentially a drum 1, the leading end 1a of which is cylindrical and

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3 hvis bageste del lb spidser til mod bagenden. Koncentrisk med tromlen er der arrangeret to ringformede rullebaner 2, hvis opbygning er beskrevet nedenfor. Rullebanerne er 5 lejret på bærehjul 3, som hver drives af en motor 4 med en gearkasse 5. Drevet er således, at tromlen roterer i retning af pilen PI.3 whose rear part lb points towards the rear end. Concentric to the drum are arranged two annular runways 2, the structure of which is described below. The runways 5 are mounted on carrier wheels 3, each driven by a motor 4 with a gearbox 5. The drive is such that the drum rotates in the direction of arrow PI.

Bærehjulene 3 er lejret i bærestel 6, der støtter på et gulv 7. Gulvet har en forsænkning til at optage et 10 transportbånd 8, hvis øvre løb bevæger sig i retning af pilen P2.The bearing wheels 3 are mounted in support frame 6 which supports a floor 7. The floor has a recess for receiving a conveyor belt 8, the upper running of which moves in the direction of the arrow P2.

Ved forenden har tromlen 1 en indgangsåbning 9, hvoromkring der er anbragt en sugekasse 10. Sugning bevirkes ved hjælp af et sugeanlæg 11. Produkter P, der 15 skal behandles, fødes fra et transportbånd 12, hvis øvre løb bevæges i retning af pilen P3.At the forward end, the drum 1 has an inlet opening 9 around which a suction box 10. Suction is effected by means of a suction device 11. Products P to be processed are fed from a conveyor belt 12 whose upper course moves in the direction of arrow P3.

Ved udgangsåbningen er der anbragt en udleveringstransportør 13, hvis øvre løb bevæger sig i retning af pilen P4. Tromlens endepart er udformet som en sigtevæg 20 14.At the exit opening, a dispensing conveyor 13 is arranged, the upper race moving in the direction of arrow P4. The end portion of the drum is formed as a screen wall 20 14.

Fig. 2 viser, hvorledes massemidtpunktet M af massen af formsand og støbegods ligger placeret til venstre for det lodrette plan V-V. Denne placering af massemidtpunktet M giver et moment om tromlens omdrejnings akse 0. Dette 25 moment optages af tangentialkræfterne fra bærehjulene 3. Summen af tangentialkræfterne har en ikke ubetydelig vandret komposant. Summen af radialkræfterne fra hjulene har en vandret komposant, der er lige så stor og modsat rettet den vandrette komposant fra tangentialkræfterne.FIG. 2 shows how the center of mass M of the mass of mold sand and castings is located to the left of the vertical plane V-V. This location of the mass center point M gives a torque about the axis of rotation of the drum 0. This 25 torque is absorbed by the tangential forces from the bearing wheels 3. The sum of the tangential forces has a not insignificant horizontal component. The sum of the radial forces from the wheels has a horizontal component that is equal in magnitude and opposite to the horizontal component from the tangential forces.

30 Ved at placere de venstre bærehjul 3 længere til venstre for aksen 0 opnås en belastningsfordeling på hjulene, der nedsætter sliddet på bærehjulene 3 i forhold til hvad der ville være tilfældet ved en symmetrisk anordning.By positioning the left carrier wheels 3 farther to the left of the axis 0, a load distribution is obtained on the wheels which reduces the wear on the carrier wheels 3 relative to what would be the case with a symmetrical device.

DK 164776 BDK 164776 B

44

Som vist i fig. 4 er hvert bærehjul 3 dannet af tre rulleringe 55 af eftergivende materiale, såsom en syntetisk harpiks, f.eks. polyurethan, og som er lagt 5 omkring en cirkulærcylindrisk fælg 56 med en glat cylindrisk ydre kappe. De tre rulleringe 55 afsmalner en smule radialt udad, og kan derved optage radiale sammenpresningskræfter på en i hovedsagen ensartet måde, således at lokale belastningskoncentrationer undgås. Da 10 belastningen på hvert bærehjul kan blive så høj som 20 tons, er det af stor betydning at undgå sådanne belastningskoncentrationer, idet disse ellers ville kunne beskadige rulleringene.As shown in FIG. 4, each carrier wheel 3 is formed of three rollers 55 of resilient material, such as a synthetic resin, e.g. polyurethane, which is laid around a circular cylindrical rim 56 with a smooth cylindrical outer sheath. The three rollers 55 taper slightly radially outward, and can thereby absorb radial compressive forces in a substantially uniform manner, thus avoiding local load concentrations. As the load on each carrier wheel can be as high as 20 tons, it is of great importance to avoid such load concentrations, as these could otherwise damage the rollers.

Til hvert bærehjuls aksel er der på en frit drejeligt måde 15 fastgjort en gearkasse 5 med en koblet motor 4. Til gearkassen 5 er der fastgjort en reaktionsarm 16 til hvis ende der er hængslet en buffer 17. Bufferen 17 hviler på stellet 6.To each axle of the bearing wheel, in a freely pivotal manner 15, a gearbox 5 with a coupled motor 4 is attached to the gearbox 5 a reaction arm 16 is attached to the end of which a buffer 17. The buffer 17 rests on the frame 6.

For aksialt at låse tromlen er støttehjul 18 lejret 20 drejeligt i stellet 6 og placeret på begge sider af rullebanen 2.In order to axially lock the drum, support wheels 18 are mounted 20 pivotally in frame 6 and located on both sides of the runway 2.

Fig. 3 viser en rullebane 2 bestående af et forholdsvis tykt rullesvøb 57, der er fastgjort til radialt rettede ringformede plader 58. Pladerne 58 er lokalt fastgjort ved 25 33 til tromlen 1, jfr. fig. 2.FIG. 3 shows a runway 2 consisting of a relatively thick roller 57 attached to radially directed annular plates 58. The plates 58 are locally attached at 33 to the drum 1, cf. FIG. 2nd

På de bort fra tromlen vendende kanter er pladerne 58 forbundet med rullesvøbet 57 i afstande 59 fra rullesvøbet 57's kanter 60, således at forholdet mellem hver afstand 59 og rullesvøbet 57's aksiale bredde 61 er ca 1:6.On the edges facing away from the drum, the plates 58 are connected to the roll wrapper 57 at distances 59 from the edges 60 of the roll sleeve 57 such that the ratio of each distance 59 to the axial width 61 of the roll sleeve 57 is approximately 1: 6.

30 Hvorved formindskes belastningsspændingerne i rullesvøbet 57 til et minimum. Dette bevirker, sammen med anvendelsen af de tre (eller flere) rulleringe 55 som "dæk" på bærerullernes fælge 56, at rullesvøbet 57 kan fremstilles30 To minimize the load stresses in the roller sleeve 57. This, together with the use of the three (or more) rollers 55 as "tires" on the rims 56 of the carrier rolls, allows the roll wrapper 57 to be manufactured

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5 af forholdsvis billigt materiale, f.eks. sædvanligt pladestål, uden særlig bearbejdning.5 of relatively inexpensive material, e.g. usual sheet steel, without special machining.

For yderligere detaljer, som ikke direkte angår 5 opfindelsen, henvises til beskrivelsen til dansk patent nr. 161948 (ans. nr. 2518/82), blot skal her nævnes, at der i tromlen 1 kan være anbragt sprøjteorganer 54 til besprøjtning af det løse sand, der fremkommer, når sandformene tumles i tromlen 1 under dennes rotation.For further details not directly related to the invention, reference is made to the specification of Danish Patent No. 161948 (No. 2518/82), but it should be mentioned here that in the drum 1 syringe members 54 may be arranged for spraying the loose sand that appears when the sand molds tumble in the drum 1 during its rotation.

10 Som det vil kunne ses af fig. 1 og 2, er de to bærestel 6 i alt væsentligt ens udformet, og har hver to bærehjul 3 med hver sin drivmotor 4 og tilhørende gearkasse 5. I de tilfælde, hvor man finder det nødvendigt at holde driftsklare bærestel i reserve, er det derfor 15 tilstrækkeligt med et enkelt bærestel i reserve. Dersom drivaggregaterne, som hvert består af et bærehjul 3, drivmotor 4 og gearkasse 5, også er ens udformet, kan man nøjes med at holde et enkelt aggregat i reserve.10 As can be seen from FIG. 1 and 2, the two carrying frames 6 are substantially the same in shape, and each has two carrying wheels 3, each with its own drive motor 4 and associated gearbox 5. In cases where it is found necessary to maintain reliable support frames in reserve, it is therefore 15 sufficient for a single support frame in reserve. If the drive assemblies, each consisting of a carrier 3, drive motor 4 and gearbox 5, are also designed in the same way, it is sufficient to keep a single unit in reserve.

Claims (2)

1. Køle- og afformningsapparat for støbegods indeholdt i sandforme og af den art, der omfatter en om en 5. hovedsagen vandret akse (0) drejeligt lejret tromle (1), som ved hjælp af mindst to på eller til tromlen (1) udformede henholdsvis fastgjorte rulleflader eller rullefladeorganer (2) er lejret på mindst fire bærehjul (3), hvoraf i det mindste et er indrettet til at drives og 10 derved bringe tromlen (1) til at rotere, hvilke bærehjul (3) i det mindste delvist består af et elastomert materiale, kendetegnet ved, at hvert bærehjul (3) består af en enkelt i hovedsagen cirkulærcylindrisk fælg (56) af stift materiale, såsom stål, omkring hvilken der er 15 anbragt mindst tre af elastomert materiale bestående rulleringe (55), hvis aksiale bredde falder med voksende radius.A casting refrigeration and molding apparatus contained in sand molds and of a type comprising a rotatably mounted drum (1) about a substantially horizontal axis (0), formed by means of at least two on or to the drum (1) mounted roller faces or roller face means (2), respectively, are mounted on at least four supporting wheels (3), at least one of which is adapted to be driven and thereby causing the drum (1) to rotate, which supporting wheels (3) at least partially consist of of an elastomeric material, characterized in that each carrier wheel (3) consists of a single substantially circular cylindrical rim (56) of rigid material, such as steel, about which at least three of elastomeric material consisting of rollers (55) are arranged if axial width decreases with increasing radius. 2. Apparat ifølge krav 1 og af den art, hvor hvert rullefladeorgan (2) omfatter et rullesvøb (57), der er 20 fastgjort til den ydre omkreds af to rundtgående og i hovedsagen plane bæreringe (58), hvis indre omkreds er fastgjort til tromlen (1), kendetegnet ved, at bæreringene (58) er fastgjort til rullesvøbenes (57) radialt indadvendende overflade i en afstand (59) fra 25 rullesvøbenes sidekanter (60), der svarer til ca. 1/6 af svøbenes (57) aksiale bredde (61).Apparatus according to claim 1 and of the kind in which each roller surface member (2) comprises a roller wrapper (57) secured to the outer circumference by two circumferential and generally planar bearing rings (58), the inner circumference of which is fixed to the drum (1), characterized in that the support rings (58) are fixed to the radially inwardly facing surface of the rollers (57) at a distance (59) from the side edges (60) of the rollers, corresponding to approx. 1/6 of the axial width (61) of the scoop (57).
DK058388A 1988-02-05 1988-02-05 COOLING AND DEFORMING APPLIANCES FOR SANDFORM CASTED OBJECTS DK164776C (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
DK058388A DK164776C (en) 1988-02-05 1988-02-05 COOLING AND DEFORMING APPLIANCES FOR SANDFORM CASTED OBJECTS
ES198989100981T ES2034409T3 (en) 1988-02-05 1989-01-20 APPARATUS TO COOL AND REMOVE CAST OBJECTS IN SAND MOLDS.
DE8989100981T DE68902484T2 (en) 1988-02-05 1989-01-20 DEVICE FOR COOLING AND EMPTYING CASTING PIECES FROM SAND MOLDS.
EP89100981A EP0326876B1 (en) 1988-02-05 1989-01-20 An apparatus for cooling and stripping objects cast in sand moulds
AT89100981T ATE79577T1 (en) 1988-02-05 1989-01-20 DEVICE FOR COOLING AND EMPTYING CASTINGS FROM SAND MOLDS.
CN89100617A CN1009712B (en) 1988-02-05 1989-02-02 Apparatus for cooling and stripping objects cast in sand moulds
BR898900462A BR8900462A (en) 1988-02-05 1989-02-02 APPLIANCE TO COOL AND EXTRACT OBJECTS CASTED AND CONTAINED IN SAND MOLDS

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DK058388A DK164776C (en) 1988-02-05 1988-02-05 COOLING AND DEFORMING APPLIANCES FOR SANDFORM CASTED OBJECTS
DK58388 1988-02-05

Publications (4)

Publication Number Publication Date
DK58388D0 DK58388D0 (en) 1988-02-05
DK58388A DK58388A (en) 1989-08-06
DK164776B true DK164776B (en) 1992-08-17
DK164776C DK164776C (en) 1992-12-28

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DK058388A DK164776C (en) 1988-02-05 1988-02-05 COOLING AND DEFORMING APPLIANCES FOR SANDFORM CASTED OBJECTS

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EP (1) EP0326876B1 (en)
CN (1) CN1009712B (en)
AT (1) ATE79577T1 (en)
BR (1) BR8900462A (en)
DE (1) DE68902484T2 (en)
DK (1) DK164776C (en)
ES (1) ES2034409T3 (en)

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US5267603A (en) * 1993-01-19 1993-12-07 Didion Manufacturing Company Sand reclaiming drum with media recycler
FR2735051A1 (en) * 1995-06-09 1996-12-13 Ronis Sa Metal workpiece separating tunnel with sound insulating cladding
ES2212708B2 (en) * 2002-02-27 2005-04-01 Urbar Ingenieros, S.A. SUPPORT AND BEARING SYSTEM FOR FOUNDRY REMOVAL DRUM.
CN103878352B (en) * 2014-04-08 2015-11-04 苏州石川制铁有限公司 A kind of method for foundry goods, running channel and rising head removing surface
CN103978154B (en) * 2014-04-22 2016-10-12 河北瑞欧消失模科技有限公司 The pinwheel cooler that sand temperature automatically controls
AT517133B1 (en) * 2015-04-17 2017-09-15 Fill Gmbh Entkernmaschine / vibrating machine with improved drive
CN105312547A (en) * 2015-12-08 2016-02-10 广西长城矿山机械设备制造有限公司 Casting cleaning support platform
CN109465428A (en) * 2018-12-10 2019-03-15 新晃远大机械铸造有限公司 A kind of knock-out barrel

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Publication number Publication date
ES2034409T3 (en) 1993-04-01
CN1009712B (en) 1990-09-26
DK58388A (en) 1989-08-06
BR8900462A (en) 1989-10-03
DK58388D0 (en) 1988-02-05
ATE79577T1 (en) 1992-09-15
EP0326876B1 (en) 1992-08-19
DK164776C (en) 1992-12-28
DE68902484D1 (en) 1992-09-24
DE68902484T2 (en) 1993-01-14
CN1035969A (en) 1989-10-04
EP0326876A3 (en) 1990-05-16
EP0326876A2 (en) 1989-08-09

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