EP0636438B1 - Core shot hood cleaning assembly and method for the production of mould shells or cores - Google Patents

Core shot hood cleaning assembly and method for the production of mould shells or cores Download PDF

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Publication number
EP0636438B1
EP0636438B1 EP94105433A EP94105433A EP0636438B1 EP 0636438 B1 EP0636438 B1 EP 0636438B1 EP 94105433 A EP94105433 A EP 94105433A EP 94105433 A EP94105433 A EP 94105433A EP 0636438 B1 EP0636438 B1 EP 0636438B1
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EP
European Patent Office
Prior art keywords
station
pallet
shot
hood
manipulator
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
EP94105433A
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German (de)
French (fr)
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EP0636438A1 (en
Inventor
Werner Landua
Wolfgang Schimpf
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Adolf Hottinger Maschinenbau GmbH
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Adolf Hottinger Maschinenbau GmbH
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Publication of EP0636438A1 publication Critical patent/EP0636438A1/en
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Publication of EP0636438B1 publication Critical patent/EP0636438B1/en
Anticipated expiration legal-status Critical
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22C—FOUNDRY MOULDING
    • B22C15/00—Moulding machines characterised by the compacting mechanism; Accessories therefor
    • B22C15/23—Compacting by gas pressure or vacuum
    • B22C15/24—Compacting by gas pressure or vacuum involving blowing devices in which the mould material is supplied in the form of loose particles

Definitions

  • the invention relates to a device for cleaning the bonnet in the manufacture of ready-to-cast masks or core packs by means of preferably linearly arranged core shooting machines or shooting stations, the core shooting machines each having a firing hood having a firing plate and firing nozzles and the firing hood being able to be uncoupled from the core shooting machine and - with the firing nozzles facing downwards - Can be stored on a pallet or the like. Furthermore, the present invention relates to a method for using the device according to the invention.
  • the present invention relates fundamentally to the field of foundry technology.
  • foundry cores or molds are usually produced in separate parts, brought together and connected to one another to form a mold or a core package. These core packages are then filled with molten metal to produce, for example, a metallic workpiece, the series of core packages to be filled with molten metal passing through the production line one after the other.
  • Devices for producing core packages of the type in question are already known from numerous publications. Reference is made to DE-OS 23 04 564 only by way of example. It is also known from practice to manufacture the cores to be connected to form a core package in a production line with a plurality of core shooting machines or shooting stations, the core package being supplemented by a further core at each shooting station having a shooting hood. For this purpose, the cores are placed on a transfer part passing through the individual shooting stations, whereby this transfer part mostly serves as the lower part of the first shooting station.
  • the core sands used to shoot the cores or to produce the core packages are always mixed with binding agent, which means that the tools - upper part of the tool with ejection plate and lower part of the tool - and, on the other hand, the shooting hoods - shooting plate and shooting nozzles - become heavily soiled. Accordingly, in addition to the tools, the firing hoods must also be cleaned from time to time and replaced at the shooting stations. If the type of the core to be fired is changed, therefore both a tool change and a firing hood change take place, the replaced firing hoods must also be cleaned.
  • the present invention is therefore based on the object of specifying a device of the type mentioned at the outset and a corresponding method, according to which a rapid and fully automatic cleaning of the firing hood is possible while avoiding contamination of the surroundings.
  • the device according to the invention achieves the above object with regard to the claimed device by the features of claim 1.
  • the device according to the invention is characterized by a feed device, a transfer station, an emptying station, a rinsing device, a drying device, a delivery station, and possibly an inspection station and a discharge device, wherein the shot hood placed on the pallet can be moved from the core shooter to the transfer station by means of the feed device, can be lifted from the pallet by means of a first manipulator and pivoted about 180 ° about a horizontal axis - with the shot nozzles upwards - into the emptying station can be emptied, into the rinsing device, the drying device can be moved, in the delivery station swiveled by about 180 ° around a horizontal axis - with the shot nozzles downwards - can be positioned on a cleaned pallet and, if necessary, can be returned to the core shooter or a tool store via the inspection station with the discharge device is.
  • the firing hoods deposited on the pallets are now brought to the transfer station by means of the feed device and are taken over there by a manipulator, ie lifted off the pallet.
  • This manipulator brings the weft hood to be cleaned over the emptying station and rotates the weft hood about 180 ° about a horizontal axis, so that the weft nozzles now project upwards and the opening of the weft hood is exposed downwards.
  • the remaining sand in the firing hood is emptied into the emptying station.
  • the shooting hood continues from that same manipulator brought to the next station or taken over by a second manipulator and subsequently brought to the next station, more precisely to the rinsing station.
  • the firing hood is then positioned on a likewise cleaned pallet by the manipulator and, if necessary, returned to the core shooter or a tool store via the inspection station by means of the discharge device.
  • the feed device it is advantageous if it comprises a roller conveyor in which individual rollers or roller groups are driven.
  • Other conveyor devices known per se could also be used.
  • the transfer station can be designed as a transfer table acting between the roller conveyor and the emptying station.
  • the manipulator used for gripping or handling the firing hoods can be moved horizontally and also vertically between the first station - the transfer station - and the last station - the delivery station.
  • the manipulator has a gripping device which can be rotated about a horizontal axis.
  • This gripping device in turn has around the horizontal rotatable gripping jaws, by means of which the shooting hoods can preferably be clamped on both sides.
  • the manipulator has a vibration device for applying vibrations the shot caps on. This ensures that the residual sand located in the firing hood is largely detached or shaken free from the inner wall of the firing hood during emptying.
  • the emptying station it is advantageous if it has a collecting container for core sand and an outlet for the collected core sand.
  • the collecting container could be at least largely funnel-shaped, so that the emptied sand always collects at the deepest point of the collecting container and can thus be easily removed and disposed of.
  • the next station designed as a flushing device, has spray heads which act from outside and inside the firing hood.
  • spray heads On the one hand, a plurality of spray heads surrounding the shooting hood and, on the other hand, a type of spray probe could be provided outside the shooting hood, so that optimal blasting or spraying of the shooting hood - inside and outside - is possible.
  • the spray heads are supplied with circulating water in a further advantageous manner, so that the fresh water consumption is reduced to a minimum.
  • the firing device has an outlet leading into a collecting basin and an inlet leading from the collecting basin to the spray heads, so that the circulating water can circulate.
  • the collecting basin in turn has at least one pump and a filter device for filtering the circulating water.
  • the filter device can be mechanical filters, but also membrane filters or the like.
  • the drying device following the flushing device is used to dry the shot hoods wetted with circulating water and has at least one blower for air drying the shot hood on. If several blowers are provided, they can be positioned both outside and inside the firing hood, so that drying on the inside and outside takes place effectively. The air drying achieved in this way takes place in a further advantageous manner at about 55 ° C.
  • a total of two drying devices preferably arranged one after the other, can be provided in order not to cause a supercritical cycle time due to the drying.
  • Both the rinsing device and the drying devices have frame or support parts for easy support or placement of the shot caps. These frames or supporting parts are arranged or dimensioned in such a way that the firing hood - with the firing nozzles pointing upwards - can be easily put on or inserted without special centering work.
  • the rinsing device and / or the drying devices can each be covered or closed by means of a cover hood.
  • the cover In order to enable loading or unloading of the devices in question, the cover must be removable as quickly as possible and at least largely sealable before the start of the operation.
  • the cover hoods are articulated to the swivel arms assigned to the respective device and can preferably be actuated or swiveled by means of a cylinder-piston arrangement.
  • the covers are each operated by a special manipulator.
  • the covers are swiveled sideways to the conveying direction of the weft covers, so that there is no obstruction.
  • the inspection station is assigned to the delivery station is, especially since the actual cleaning process has already ended there.
  • the inspection station adjoining the drying device could be used for visual inspection by an operator.
  • the inspection station could preferably comprise contactless sensors for — contactless — scanning of the surface of the protective hood.
  • the scanning could, for example, take place optically, by means of ultrasound or inductively.
  • This pallet cleaning path could include its own conveyor, a pallet manipulator and an emptying station, whereby the pallet could be pivoted about 180 ° about a horizontal axis by means of the pallet manipulator and could be emptied into the emptying station with the loading surface facing downwards.
  • the emptying station provided specifically for the pallets could in turn have a brush for brushing off the sand adhering to the loading surface of the pallet.
  • the manipulator used for handling the shot caps could also serve to grip the pallets remaining on the transfer table after the shot caps have been lifted off.
  • the pallets would then be fed to the same emptying station for emptying by means of this manipulator, which also serves for emptying the shot caps.
  • this emptying station could be assigned a preferably movable brush for brushing off the pallets be.
  • the brush could in turn be moved by means of a cylinder-piston arrangement, so that the brush can move back and forth.
  • the cleaned pallet could advantageously be brought back to the transfer table by means of the manipulator and be able to be fed from there to the delivery station and thus to the delivery station, i.e. After cleaning the weft hoods, serve to hold the cleaned weft hoods.
  • the transfer table of the transfer station could be designed as a lifting table, preferably as a scissor lifting table.
  • a return path which takes the cleaned pallet from the transfer table in its lowered position and leads to the delivery station could be arranged below the feed device which serves to feed the soiled firing hoods onto the pallets. The required area is minimized by the arrangement of the feed path and return path selected one above the other.
  • the delivery station or inspection station connected to the last processing station could be designed as a transfer table acting between the last processing station, the drying device and the return path, which can be the same transfer table as before the emptying station.
  • the transfer table of the delivery station can namely be designed as a lifting table, in particular as a scissor lifting table.
  • the transfer table of the delivery station takes the cleaned pallet from the return path and moves it to the delivery station or inspection station.
  • the incoming and cleaned weft hood is then placed on the pallet or taken over by it, so that the cleaned weft hood lying on the pallet goes directly to the core shooter via a discharge path lying in the plane of the raised or lowered position or a tool store can be removed.
  • the discharge device also comprises a roller conveyor like the feed device already discussed above.
  • the firing hood deposited on the pallet is brought from the core shooter to the transfer station by means of the feed device. There the firing hood is lifted from the pallet by means of the manipulator and brought into the area above the emptying station. There, the firing hood is pivoted about a horizontal axis by approximately 180 ° in order to empty the firing hood, which is directed upwards with the firing nozzles, into the emptying station. Then the shot cap is brought into the rinsing device by means of the manipulator and rinsed or blasted, specifically by spraying or blasting with circulating water on the inside and outside. In a next process step, the firing hood is brought into the drying device, where it is freed from the circulating water wetting the surfaces.
  • the firing hood is brought into the delivery station, which may also serve as an inspection station, and is pivoted there about a horizontal axis by means of the manipulator, so that the firing nozzles are again directed downward.
  • the firing hood is then placed on a cleaned pallet which has meanwhile been made available in the delivery station and is returned on the pallet - on the discharge device - to the core shooter or to a tool store.
  • the cleaning of the pallets can be carried out in two alternative process steps.
  • the pallets could be fed to a separate pallet cleaning path after the firing hoods had been lifted off.
  • the pallets would be swiveled horizontally by approximately 180 ° by means of a pallet manipulator and emptied with the loading area downward into the specially provided emptying station.
  • the emptying station the sand adhering to the loading area could be brushed off with brushes.
  • the cleaned pallet could then be fed to the delivery station and be used to hold the cleaned firing hoods there.
  • the pallet remaining on the transfer table after lifting off the firing hood could also be gripped by the manipulator and fed to the emptying station which actually serves to empty the firing hoods.
  • the cleaned pallet could be returned to the transfer table by means of the manipulator and fed from there to the delivery station, namely there to hold the cleaned firing hood.
  • manipulators could easily be provided here, so that simultaneous handling of the firing hood and pallet is possible.
  • the return path arranged below the feed device and leading to the delivery station takes the cleaned pallet from the transfer table in its lowered position and leads the cleaned pallet to the delivery station for taking over the cleaned firing hood.
  • the delivery station or the inspection station provided there could be designed between the drying device and the return path in the sense of a transfer table.
  • the cleaned pallet would then be taken over in a lowered position from the transfer table of the delivery station to a return path or return device and moved to the delivery station or inspection station.
  • the cleaned firing hood could then be taken over on the pallet.
  • the firing hood lying on the pallet would then be discharged together with the pallet via a discharge path lying in the plane of the raised or lowered position or returned to the core shooter or a tool store.
  • the core shooters have a firing hood 3 having a firing plate 1 and firing nozzles 2.
  • the firing hoods 3 can be uncoupled from the core shooting machine, not shown in the figures, and - with the firing nozzles 2 directed downwards - can be placed on a pallet 4.
  • a feed device 5, a transfer station 6, an emptying station 7, a rinsing device 8, a drying device 9, a delivery station 10, which also serves as an inspection station, and a discharge device 11 are provided.
  • the firing hood 3 deposited on the pallet 4 can be moved from the core shooting machine (not shown in the figures) to the transfer station 6 by means of the feed device 5, can be lifted from the pallet 4 by means of a manipulator 12 and pivoted through 180 ° about a horizontal axis 13 - with the weft nozzles 2 facing upwards - can be emptied into the emptying station 7, into the rinsing device 8, the drying device 9 can be moved, in the dispensing station 10 by approximately 180 ° pivoted about a horizontal axis 13 - with the shot nozzles 2 directed downwards - can be positioned on a cleaned pallet 4 and can be returned via the inspection station with the discharge device 11 to the core shooter (not shown) or to a
  • Fig. 1 shows particularly clearly that the feed device 5 comprises a roller conveyor 14.
  • the transfer station 6 is designed as a transfer table 15 acting between the roller conveyor 14 and the emptying station 7.
  • the manipulator 12 can be moved between the transfer station 6 and the delivery station 10 both horizontally and vertically, which can be seen particularly in FIG. 2.
  • the manipulator 12 also has a gripping device 16 which can be rotated about a horizontal axis and which in turn has gripping jaws 17 which can be rotated about the horizontal axis 13.
  • the emptying station 7 comprises a collecting container 18 for core sand and an outlet 19 for the collected core sand 20.
  • the collecting container 18 is funnel-shaped.
  • the rinsing device 8 also has, as shown in FIG. 2, spray heads 21 acting from outside and inside the firing hood 3. These spray heads 21 can be fed with circulating water, which is only indicated in FIG. 2. With regard to details in this regard, reference is made to the general part of the description.
  • the drying device 8 has blowers 22 for air drying the firing hood 3.
  • a total of two drying devices 9 arranged one after the other are provided.
  • FIG. 2 further shows that the rinsing device 8 and the drying devices 9 have frame or support parts 23 for receiving the shooting hoods 3. These frame or support parts 23 are used for easy insertion of the shot caps 3 to be treated, so that no special centering is required.
  • Fig. 5 shows very clearly and in detail that the rinsing device 8 can be covered or closed by means of a cover 24. The same applies to the drying device 9 (not shown in FIG. 5).
  • the cover 24 is articulated on the swivel arms 25 assigned to the flushing device 8 and can be actuated or swiveled by means of a cylinder-piston arrangement 26.
  • the inspection station thus connected to the drying device 9 serves to check the cleaning quality of the firing hoods 3 on the one hand and to check the firing hoods 3 on the other hand.
  • the manipulator 12 shown in FIG. 2 also serves to grip the pallet 4 that remains on the transfer table 15 after the firing hood 3 has been lifted off.
  • the pallet 4 can be fed to the same emptying station 7 for emptying, which is also used for emptying Emptying the firing hood 3 is used.
  • the emptying station 7 is assigned a movable brush 27 for brushing off the pallet 4.
  • the pallet 4 cleaned in this way is moved onto the transfer table by means of the manipulator 12 15 brought back and fed from there to the delivery station 10 and is used to hold the cleaned firing hood.
  • the transfer table 15 of the transfer station 6 is designed as a scissor lift table.
  • a return path 28, which takes over the cleaned pallet 4 from the transfer table 15 in its lowered position and leads to the delivery station 10, is arranged below the feed device 5.
  • the delivery station 10 or the inspection station assigned to the delivery station 10 is designed as a transfer table 29 acting between the drying device 9 and the return path 28.
  • the transfer table 29 of the delivery station 10, like the transfer table 15 of the transfer station 6, is designed as a scissor lift table. Furthermore, the transfer table 29 of the delivery station 10 takes over the cleaned pallet 4 from the return path 28 in a lowered position and moves this to the delivery station 10 or the inspection station provided there.
  • the discharge device 11 comprising the discharge path 30, like the feed device 5, comprises a roller conveyor 31.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Cleaning By Liquid Or Steam (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)

Description

Die Erfindung betrifft eine Vorrichtung zur Schußhaubenreinigung bei der Herstellung gießfertiger Masken bzw. Kernpakete mittels vorzugsweise linear angeordneter Kernschießmaschinen bzw. Schießstationen, wobei die Kernschießmaschinen jeweils eine eine Schußplatte und Schußdüsen aufweisende Schußhaube aufweisen und die Schußhaube von der Kernschießmaschine abkoppelbar und - mit den Schußdüsen nach unten - auf einer Palette oder dgl. ablegbar ist. Des weiteren betrifft die vorliegende Erfindung ein Verfahren zur Anwendung der erfindungsgemäßen Vorrichtung.The invention relates to a device for cleaning the bonnet in the manufacture of ready-to-cast masks or core packs by means of preferably linearly arranged core shooting machines or shooting stations, the core shooting machines each having a firing hood having a firing plate and firing nozzles and the firing hood being able to be uncoupled from the core shooting machine and - with the firing nozzles facing downwards - Can be stored on a pallet or the like. Furthermore, the present invention relates to a method for using the device according to the invention.

Die vorliegende Erfindung bezieht sich grundsätzlich auf das Gebiet der Gießereitechnik. Zum Gießen von Formstücken werden Gießereikerne oder -formen meist in getrennten Teilen hergestellt, zusammengeführt und miteinander zu einer Gußform bzw. zu einem Kernpaket verbunden. Diese Kernpakete werden dann zur Herstellung eines bspw. metallischen Werkstücks mit geschmolzenem Metall gefüllt, wobei in der Serienfertigung die mit geschmolzenem Metall zu füllenden Kernpakete hintereinander aufgereiht die Fertigungsstraße durchlaufen.The present invention relates fundamentally to the field of foundry technology. For the casting of molded parts, foundry cores or molds are usually produced in separate parts, brought together and connected to one another to form a mold or a core package. These core packages are then filled with molten metal to produce, for example, a metallic workpiece, the series of core packages to be filled with molten metal passing through the production line one after the other.

Vorrichtungen zum Herstellen von Kernpaketen der in Rede stehenden Art sind bereits aus zahlreichen Druckschriften bekannt. Lediglich beispielhaft wird hier auf die DE-OS 23 04 564 verwiesen. Aus der Praxis ist es weiter bekannt, die zu einem Kernpaket zu verbindenden Kerne in einer Fertigungslinie mit mehreren Schußhauben aufweisenden Kernschießmaschinen bzw. Schießstationen zu fertigen, wobei das Kernpaket an jeder eine Schußhaube aufweisenden Schießstation um einen weiteren Kern ergänzt wird. Dazu werden die Kerne auf einem die einzelnen Schießstationen durchlaufenden Transferteil abgelegt, wobei dieses Transferteil meist gleichzeitig als Werkzeugunterteil der ersten Schießstation dient.Devices for producing core packages of the type in question are already known from numerous publications. Reference is made to DE-OS 23 04 564 only by way of example. It is also known from practice to manufacture the cores to be connected to form a core package in a production line with a plurality of core shooting machines or shooting stations, the core package being supplemented by a further core at each shooting station having a shooting hood. For this purpose, the cores are placed on a transfer part passing through the individual shooting stations, whereby this transfer part mostly serves as the lower part of the first shooting station.

Nun sind die zum Schießen der Kerne bzw. zur Herstellung der Kernpakete verwendeten Kernsande stets mit Bindemittel vermengt, wodurch eine erhebliche Verschmutzung einerseits der Werkzeuge - Werkzeugoberteil mit Ausstoßplatte und Werkzeugunterteil - und andererseits der Schußhauben - Schußplatte und Schußdüsen - stattfindet. Entsprechend sind neben den Werkzeugen auch die Schußhauben von Zeit zu Zeit zu reinigen und dazu an den Schießstationen auszutauschen. Wird der Typ des zu schießenden Kerns gewechselt, findet demnach sowohl ein Werkzeugwechsel als auch ein Schußhaubenwechsel statt, so sind die ausgewechselten Schußhauben ebenfalls zu reinigen. Ein solcher Schußhaubenwechsel bzw. die darauf folgende Reinigung der Schußhauben ist in der Praxis stets dann problematisch, wenn eine vollautomatische Fertigung und somit auch eine vollautomatische Schußhaubenreinigung angestrebt ist. Einerseits bereitet die Handhabung der Schußhauben Probleme und andererseits ist die Reinigung trotz der komplizierten Handhabung schnellstmöglich durchzuführen, ohne jedoch dabei das Umfeld mit in den Schußhauben verbliebenen Kernsanden zu verunreinigen.Now the core sands used to shoot the cores or to produce the core packages are always mixed with binding agent, which means that the tools - upper part of the tool with ejection plate and lower part of the tool - and, on the other hand, the shooting hoods - shooting plate and shooting nozzles - become heavily soiled. Accordingly, in addition to the tools, the firing hoods must also be cleaned from time to time and replaced at the shooting stations. If the type of the core to be fired is changed, therefore both a tool change and a firing hood change take place, the replaced firing hoods must also be cleaned. Such a replacement of the firing hood or the subsequent cleaning of the firing hoods is always problematic in practice when a fully automatic production and thus also a fully automatic cleaning of the firing hood is desired. On the one hand, the handling of the firing hoods causes problems and, on the other hand, the cleaning can be carried out as quickly as possible despite the complicated handling, but without contaminating the surroundings with core sands remaining in the firing hood.

Der vorliegenden Erfindung liegt daher die Aufgabe zugrunde, eine Vorrichtung der eingangs genannten Art sowie ein entsprechendes Verfahren anzugeben, wonach eine schnelle und dabei vollautomatische Schußhaubenreinigung unter Vermeidung einer Verunreinigung des Umfeldes möglich ist.The present invention is therefore based on the object of specifying a device of the type mentioned at the outset and a corresponding method, according to which a rapid and fully automatic cleaning of the firing hood is possible while avoiding contamination of the surroundings.

Die erfindungsgemäße Vorrichtung löst die voranstehende Aufgabe hinsichtlich der beanspruchten Vorrichtung durch die Merkmale des Patentanspruches 1. Danach ist die erfindungsgemäße Vorrichtung gekennzeichnet durch eine Zuführeinrichtung, eine Übergabestation, eine Entleerstation, eine Spüleinrichtung, eine Trockeneinrichtung, eine Abgabestation, ggf. eine Inspektionsstation und eine Abführeinrichtung, wobei die auf der Palette abgelegte Schußhaube mittels der Zuführeinrichtung von der Kernschießmaschine zu der Übergabestation verbringbar, mittels eines ersten Manipulators von der Palette hebbar und um etwa 180° um eine horizontale Achse geschwenkt - mit den Schußdüsen nach oben - in die Entleerstation entleerbar, in die Spüleinrichtung, die Trockeneinrichtung verbringbar, in der Abgabestation um etwa 180° um eine horizontale Achse geschwenkt - mit den Schußdüsen nach unten - auf eine gereinigte Palette positionierbar und ggf. über die Inspektionsstation mit der Abführeinrichtung zu der Kernschießmaschine oder einem Werkzeuglager rückführbar ist.The device according to the invention achieves the above object with regard to the claimed device by the features of claim 1. According to this, the device according to the invention is characterized by a feed device, a transfer station, an emptying station, a rinsing device, a drying device, a delivery station, and possibly an inspection station and a discharge device, wherein the shot hood placed on the pallet can be moved from the core shooter to the transfer station by means of the feed device, can be lifted from the pallet by means of a first manipulator and pivoted about 180 ° about a horizontal axis - with the shot nozzles upwards - into the emptying station can be emptied, into the rinsing device, the drying device can be moved, in the delivery station swiveled by about 180 ° around a horizontal axis - with the shot nozzles downwards - can be positioned on a cleaned pallet and, if necessary, can be returned to the core shooter or a tool store via the inspection station with the discharge device is.

In erfindungsgemäßer Weise ist erkannt worden, daß eine vollautomatische Reinigung von Schußhauben im Rahmen der Herstellung gießfertiger Masken bzw. Kernpakete auf jeden Fall dann möglich ist, wenn eine Zuführeinrichtung, eine Übergabestation, eine Entleerstation, eine Spüleinrichtung, eine Trockeneinrichtung, eine Abgabestation, ggf. eine Inspektionsstation und eine Abführeinrichtung vorgesehen sind, nämlich gemeinsam die erfindungsgemäße Vorrichtung bilden. Die zur Vermeidung von Verunreinigungen bzw. zur Vermeidung eines Verstreuens von Kernsand über den Transportweg hinweg vorgesehene Palette dient als Unterlage für die zu reinigenden Schußhauben, wobei die Schußhauben in ihrer Arbeitsposition, d.h. mit den Schußdüsen nach unten gerichtet, auf die Paletten aufgelegt werden. Die auf den Paletten abgelegten Schußhauben werden nun mittels der Zuführeinrichtung zu der Übergabestation verbracht und dort von einem Manipulator übernommen, d.h. von der Palette abgehoben. Dieser Manipulator verbringt die zu reinigende Schußhaube über die Entleerstation und dreht die Schußhaube um etwa 180° um eine horizontale Achse, so daß nunmehr die Schußdüsen nach oben abragen und die Öffnung der Schußhaube nach unten freiliegt. Dabei wird der in der Schußhaube verbliebene Restsand in die Entleerstation entleert. Weiter wird die Schußhaube von dem gleichen Manipulator zur nächsten Station verbracht oder von einem zweiten Manipulator übernommen und nachfolgend in die nächste Station, genauergesagt in die Spülstation, verbracht. Dort wird der an den Wandungen der Schußhaube haftende Kernsand abgestrahlt bzw. abgespült. In der nachfolgenden Trockeneinrichtung erfolgt dann die Trocknung der durch Kreisaufwasser benetzten Schußhaube. Anschließend wird - mit dem gleichen oder einem dritten Manipulator - die Schußhaube in der Abgabestation um etwa 180° um eine horizontale Achse geschwenkt, so daß sich die Schußhaube wieder in der Arbeitsposition - mit den Schußdüsen nach unten gerichtet - befindet. In einem nächsten Schritt wird dann die Schußhaube durch den Manipulator auf eine ebenfalls gereinigte Palette positioniert und ggf. über die Inspektionsstation mittels der Abführeinrichtung zu der Kernschießmaschine oder einem Werkzeuglager zurückgeführt.In the manner according to the invention, it has been recognized that fully automatic cleaning of the shooting hoods in the production of ready-to-cast masks or core packs is possible in any case if a feed device, a transfer station, an emptying station, a rinsing device, a drying device, a delivery station, if necessary an inspection station and a discharge device are provided, namely together form the device according to the invention. The pallet provided to avoid contamination or to avoid scattering of core sand over the transport path serves as a base for the weft hoods to be cleaned, the weft hoods being placed on the pallets in their working position, ie with the weft nozzles pointing downwards. The firing hoods deposited on the pallets are now brought to the transfer station by means of the feed device and are taken over there by a manipulator, ie lifted off the pallet. This manipulator brings the weft hood to be cleaned over the emptying station and rotates the weft hood about 180 ° about a horizontal axis, so that the weft nozzles now project upwards and the opening of the weft hood is exposed downwards. The remaining sand in the firing hood is emptied into the emptying station. The shooting hood continues from that same manipulator brought to the next station or taken over by a second manipulator and subsequently brought to the next station, more precisely to the rinsing station. There the core sand adhering to the walls of the firing hood is blasted or rinsed off. In the subsequent drying device, the shot hood wetted by circulating water is then dried. Then - with the same or a third manipulator - the weft hood in the delivery station is pivoted about 180 ° about a horizontal axis, so that the weft hood is again in the working position - with the weft nozzles pointing downwards. In a next step, the firing hood is then positioned on a likewise cleaned pallet by the manipulator and, if necessary, returned to the core shooter or a tool store via the inspection station by means of the discharge device.

Hinsichtlich einer besonderen Ausgestaltung der Zuführeinrichtung ist es von Vorteil, wenn diese einen Rollenförderer umfaßt, bei dem einzelne Rollen bzw. Rollengruppen angetrieben sind. Ebenso ließen sich andere für sich bekannte Fördereinrichtungen verwenden.With regard to a special configuration of the feed device, it is advantageous if it comprises a roller conveyor in which individual rollers or roller groups are driven. Other conveyor devices known per se could also be used.

Die Übergabestation kann als zwischen dem Rollenförderer und der Entleerstation wirkender Transfertisch ausgeführt sein. Der zum Greifen bzw. zur Handhabung der Schußhauben dienende Manipulator ist zwischen der ersten Station - der Übergabestation - und der letzten Station - der Abgabestation - horizontal und auch vertikal verfahrbar. Zum Drehen der Schußhauben um eine horizontale Achse, vorzugsweise um 180°, weist der Manipulator eine um eine horizontale Achse drehbare Greifeinrichtung auf. Diese Greifeinrichtung verfügt wiederum um um die horizontale drehbare Greifbacken, mittels derer die Schußhauben vorzugsweise beidseitig einspannbar sind. Des weiteren weist der Manipulator im Rahmen einer ganz besonders vorteilhaften Ausgestaltung eine Vibrationseinrichtung zur Vibrationsbeaufschlagung der Schußhauben auf. Damit ist sichergestellt, daß der sich in der Schußhaube befindende Restsand beim Entleeren weitestgehend von der Innenwandung der Schußhaube gelöst bzw. freigerüttelt wird.The transfer station can be designed as a transfer table acting between the roller conveyor and the emptying station. The manipulator used for gripping or handling the firing hoods can be moved horizontally and also vertically between the first station - the transfer station - and the last station - the delivery station. To rotate the firing hoods about a horizontal axis, preferably through 180 °, the manipulator has a gripping device which can be rotated about a horizontal axis. This gripping device in turn has around the horizontal rotatable gripping jaws, by means of which the shooting hoods can preferably be clamped on both sides. Furthermore, in the context of a very particularly advantageous embodiment, the manipulator has a vibration device for applying vibrations the shot caps on. This ensures that the residual sand located in the firing hood is largely detached or shaken free from the inner wall of the firing hood during emptying.

Hinsichtlich einer besonderen Ausgestaltung der Entleerstation ist es von Vorteil, wenn diese ein Sammelbehältnis für Kernsand sowie einen Auslaß für den gesammelten Kernsand aufweist. Das Sammelbehältnis könnte zumindest weitgehend trichterförmig ausgebildet sein, so daß sich der entleerte Sand stets an der tiefsten Stelle des Sammelbehältnisses sammelt und so mühelos abgeleitet und entsorgt werden kann.With regard to a special configuration of the emptying station, it is advantageous if it has a collecting container for core sand and an outlet for the collected core sand. The collecting container could be at least largely funnel-shaped, so that the emptied sand always collects at the deepest point of the collecting container and can thus be easily removed and disposed of.

Die als Spüleinrichtung ausgeführte nächste Station weist von außerhalb und innerhalb der Schußhaube wirkende Sprühköpfe auf. Einerseits könnten außerhalb der Schußhaube mehrere die Schußhaube umgebende Sprühköpfe und andererseits innerhalb der Haube eine Art Sprühsonde vorgesehen sein, so daß ein optimales Abstrahlen bzw. Absprühen der Schußhaube - innenseitig und außenseitig - möglich ist. Die Sprühköpfe werden in weiter vorteilhafter Weise mit Kreislaufwasser versorgt, so daß der Frischwasserverbrauch auf ein Minimum reduziert ist.The next station, designed as a flushing device, has spray heads which act from outside and inside the firing hood. On the one hand, a plurality of spray heads surrounding the shooting hood and, on the other hand, a type of spray probe could be provided outside the shooting hood, so that optimal blasting or spraying of the shooting hood - inside and outside - is possible. The spray heads are supplied with circulating water in a further advantageous manner, so that the fresh water consumption is reduced to a minimum.

Hinsichtlich der Ausgestaltung der Schußeinrichtung ist es von weiterem Vorteil, wenn diese einen in ein Sammelbecken führenden Ablauf und einen von dem Sammelbecken zu den Sprühköpfen führenden Zulauf aufweist, so daß das Kreislaufwasser zirkulieren kann. Dazu weist das Sammelbecken wiederum mindestens eine Pumpe und eine Filtereinrichtung zum Filtern des Kreislaufwassers auf. Bei der Filtereinrichtung kann es sich um mechanische Filter, bspw. aber auch um Membranfilter oder dgl. handeln.With regard to the design of the firing device, it is of further advantage if it has an outlet leading into a collecting basin and an inlet leading from the collecting basin to the spray heads, so that the circulating water can circulate. For this purpose, the collecting basin in turn has at least one pump and a filter device for filtering the circulating water. The filter device can be mechanical filters, but also membrane filters or the like.

Die auf die Spüleinrichtung folgende Trockeneinrichtung dient zum Trocknen der mit Kreislaufwasser benetzten Schußhauben und weist mindestens ein Gebläse zum Lufttrocknen der Schußhaube auf. Bei Vorkehrung mehrerer Gebläse können diese sowohl außerhalb als auch innerhalb der Schußhaube positioniert sein, so daß eine innenseitige und außenseitige Trocknung wirksam erfolgt. Die so erreichte Lufttrocknung erfolgt in weiter vorteilhafter Weise bei etwa 55° C. Statt einer einzigen Trockeneinrichtung können insgesamt zwei vorzugsweise nacheinander angeordnete Trockeneinrichtungen vorgesehen sein, um nämlich durch die Trocknung keine überkritische Taktzeit hervorzurufen.The drying device following the flushing device is used to dry the shot hoods wetted with circulating water and has at least one blower for air drying the shot hood on. If several blowers are provided, they can be positioned both outside and inside the firing hood, so that drying on the inside and outside takes place effectively. The air drying achieved in this way takes place in a further advantageous manner at about 55 ° C. Instead of a single drying device, a total of two drying devices, preferably arranged one after the other, can be provided in order not to cause a supercritical cycle time due to the drying.

Sowohl die Spüleinrichtung als auch die Trockeneinrichtungen weisen zum einfachen Abstützen bzw. Auflegen der Schußhauben Rahmen- bzw. Stützteile auf. Diese Rahmen bzw. Stützteile sind derart angeordnet bzw. dimensioniert, daß sich die Schußhaube - mit den Schußdüsen nach oben gerichtet - sicher und ohne besondere Zentrierarbeiten einfach auf- bzw. einsetzen läßt.Both the rinsing device and the drying devices have frame or support parts for easy support or placement of the shot caps. These frames or supporting parts are arranged or dimensioned in such a way that the firing hood - with the firing nozzles pointing upwards - can be easily put on or inserted without special centering work.

Hinsichtlich einer wirksamen Vermeidung von Belastungen des direkten Umfeldes der zuvor genannten Einrichtungen ist es von ganz besonderem Vorteil, wenn die Spüleinrichtung und/oder die Trockeneinrichtungen jeweils mittels einer Abdeckhaube abdeckbar bzw. schließbar sind. Um ein Beladen bzw. Entladen der in Rede stehenden Einrichtungen zu ermöglichen, muß die Abdeckhaube schnellstmöglich entfernbar und vor Beginn des Arbeitsganges zumindest weitgehend abdichtend schließbar sein. Dazu sind die Abdeckhauben an der jeweiligen Einrichtung zugeordneten Schwenkarmen angelenkt und vorzugsweise mittels einer Zylinder-Kolben-Anordnung betätigbar bzw. schwenkbar. Mit anderen Worten werden die Abdeckhauben jeweils durch einen besonderen Manipulator bedient. Das Wegschwenken der Abdeckhauben erfolgt seitlich zur Förderrichtung der Schußhauben, so daß dadurch keine Behinderung eintritt.With regard to an effective avoidance of loads in the direct environment of the aforementioned devices, it is of particular advantage if the rinsing device and / or the drying devices can each be covered or closed by means of a cover hood. In order to enable loading or unloading of the devices in question, the cover must be removable as quickly as possible and at least largely sealable before the start of the operation. For this purpose, the cover hoods are articulated to the swivel arms assigned to the respective device and can preferably be actuated or swiveled by means of a cylinder-piston arrangement. In other words, the covers are each operated by a special manipulator. The covers are swiveled sideways to the conveying direction of the weft covers, so that there is no obstruction.

Hinsichtlich einer besonders einfachen und dabei auch platzsparenden Überprüfung der gereinigten Schußhauben ist es von Vorteil, wenn die Inspektionsstation der Abgabestation zugeordnet ist, zumal dort der eigentliche Reinigungsprozeß bereits beendet ist. Die sich an die Trockeneinrichtung anschließende Inspektionsstation könnte zur optischen Kontrolle durch eine Bedienungsperson dienen. In ganz besonders vorteilhafter Weise und insbesondere hinsichtlich einer vollautomatischen Reinigung und auch Kontrolle könnte die Inspektionsstation vorzugsweise kontaktlose Sensoren zur - kontaktlosen - Abtastung der Oberfläche der Schutzhaube umfassen. Die Abtastung könnte bspw. lichtoptisch, mittels Ultraschall oder induktiv erfolgen.With regard to a particularly simple and also space-saving inspection of the cleaned firing hoods, it is advantageous if the inspection station is assigned to the delivery station is, especially since the actual cleaning process has already ended there. The inspection station adjoining the drying device could be used for visual inspection by an operator. In a particularly advantageous manner and in particular with regard to fully automatic cleaning and also checking, the inspection station could preferably comprise contactless sensors for — contactless — scanning of the surface of the protective hood. The scanning could, for example, take place optically, by means of ultrasound or inductively.

Hinsichtlich der nach Abheben der Schußhaube in der Übergabestation verbliebenen Palette und hinsichtlich einer besonders einfachen Reinigung dieser mit Sand kontaminierten Palette könnte diese im Rahmen einer ersten Alternative einem gesonderten Paletten-Reinigungspfad zuführbar sein. Dieser Paletten-Reinigungspfad könnte eine eigene Fördereinrichtung, einen Paletten-Manipulator und eine Entleerstation umfassen, wobei die Palette mittels des Paletten-Manipulators um etwa 180° um eine horizontale Achse schwenkbar und mit der Ladefläche nach unten in die Entleerstation entleerbar sein könnte. Die eigens für die Paletten vorgesehene Entleerstation könnte wiederum eine Bürste zum Abbürsten des an der Ladefläche der Palette haftenden Sandes aufweisen.With regard to the pallet remaining in the transfer station after the firing hood has been lifted off and with regard to a particularly simple cleaning of this pallet contaminated with sand, it could be possible to feed it to a separate pallet cleaning path as part of a first alternative. This pallet cleaning path could include its own conveyor, a pallet manipulator and an emptying station, whereby the pallet could be pivoted about 180 ° about a horizontal axis by means of the pallet manipulator and could be emptied into the emptying station with the loading surface facing downwards. The emptying station provided specifically for the pallets could in turn have a brush for brushing off the sand adhering to the loading surface of the pallet.

Im Rahmen einer alternativen und hinsichtlich einerseits eines geringen Raumbedarfes und andererseits hinsichtlich eines geringeren apparativen Aufwandes vorteilhaften Ausgestaltung der erfindungsgemäßen Vorrichtung könnte der zur Handhabung der Schußhauben dienende Manipulator auch zum Greifen der auf dem Transfertisch nach Abheben der Schußhauben verbliebenen Paletten dienen. Die Paletten wären dann mittels dieses Manipulators der gleichen Entleerstation zum Entleeren zuführbar, die auch zum Entleeren der Schußhauben dient. Zur ganz besonders einfachen Reinigung der Paletten könnte dieser Entleerstation eine vorzugsweise verfahrbare Bürste zum Abbürsten der Paletten zugeordnet sein. Das Verfahren der Bürste könnte wiederum mittels einer Zylinder-Kolben-Anordnung erfolgen, so daß die Bürste eine Hin- und Herbewegung ausführen kann.In the context of an alternative embodiment of the device according to the invention, which is advantageous in terms of a small space requirement on the one hand and on the other hand in terms of less equipment expenditure, the manipulator used for handling the shot caps could also serve to grip the pallets remaining on the transfer table after the shot caps have been lifted off. The pallets would then be fed to the same emptying station for emptying by means of this manipulator, which also serves for emptying the shot caps. For a particularly simple cleaning of the pallets, this emptying station could be assigned a preferably movable brush for brushing off the pallets be. The brush could in turn be moved by means of a cylinder-piston arrangement, so that the brush can move back and forth.

Die gereinigte Palette könnte in weiter vorteilhafter Weise mittels des Manipulators auf den Transfertisch zurück verbringbar und von dort der Abgabestation zuführbar sein und somit an der Abgabestation, d.h. nach Reinigung der Schußhauben, zur Aufnahme der gereinigten Schußhauben dienen. Dazu könnte der Transfertisch der Übergabestation als Hubtisch, vorzugsweise als Scherenhubtisch, ausgeführt sein. Unterhalb der zum Zuführen der verschmutzten Schußhauben auf den Paletten dienenden Zuführeinrichtung könnte eine die gereinigte Palette von dem Transfertisch in dessen abgesenkter Position übernehmende und zu der Abgabestation führende Rückführbahn angeordnet sein. Durch die übereinander gewählte Anordnung von Zuführbahn und Rückführbahn ist die erforderliche Fläche minimiert.The cleaned pallet could advantageously be brought back to the transfer table by means of the manipulator and be able to be fed from there to the delivery station and thus to the delivery station, i.e. After cleaning the weft hoods, serve to hold the cleaned weft hoods. For this purpose, the transfer table of the transfer station could be designed as a lifting table, preferably as a scissor lifting table. A return path which takes the cleaned pallet from the transfer table in its lowered position and leads to the delivery station could be arranged below the feed device which serves to feed the soiled firing hoods onto the pallets. The required area is minimized by the arrangement of the feed path and return path selected one above the other.

Die sich an die letzte Bearbeitungsstation anschließende Abgabestation bzw. Inspektionsstation könnte als zwischen der letzten Bearbeitungsstation, der Trockeneinrichtung und der Rückführbahn wirkender Transfertisch ausgeführt sein, wobei es sich hier um den gleichen Transfertisch wie vor der Entleerstation handeln kann. Der Transfertisch der Abgabestation kann nämlich als Hubtisch, insbesondere als Scherenhubtisch, ausgeführt sein.The delivery station or inspection station connected to the last processing station could be designed as a transfer table acting between the last processing station, the drying device and the return path, which can be the same transfer table as before the emptying station. The transfer table of the delivery station can namely be designed as a lifting table, in particular as a scissor lifting table.

In einer abgesenkten Position übernimmt der Transfertisch der Abgabestation die gereinigte Palette von der Rückführbahn und verfährt diese zu der Abgabestation bzw. Inspektionsstation. In einer angehobenen Position wird dann die dort ankommende und gereinigte Schußhaube auf der Palette abgelegt bzw. von dieser übernommen, so daß die auf der Palette liegende, gereinigte Schußhaube über eine in der Ebene der angehobenen oder abgesenkten Position liegende Abführbahn direkt zu der Kernschießmaschine oder einem Werkzeuglager abführbar ist. Auch die Abführeinrichtung umfaßt einen Rollenförderer wie die zuvor bereits erörterte Zuführeinrichtung.In a lowered position, the transfer table of the delivery station takes the cleaned pallet from the return path and moves it to the delivery station or inspection station. In a raised position, the incoming and cleaned weft hood is then placed on the pallet or taken over by it, so that the cleaned weft hood lying on the pallet goes directly to the core shooter via a discharge path lying in the plane of the raised or lowered position or a tool store can be removed. The discharge device also comprises a roller conveyor like the feed device already discussed above.

Hinsichtlich des erfindungsgemäßen Verfahrens wird die zuvor genannte Aufgabe durch die Merkmale des Patentanspruches 14 gelöst. Danach umfaßt das erfindungsgemäße Verfahren folgende Verfahrensschritte:With regard to the method according to the invention, the aforementioned object is achieved by the features of claim 14. The process according to the invention then comprises the following process steps:

Die auf der Palette abgelegte Schußhaube wird mittels der Zuführeinrichtung von der Kernschießmaschine zu der Übergabestation verbracht. Dort wird die Schußhaube mittels des Manipulators von der Palette gehoben und in den Bereich oberhalb der Entleerstation verbracht. Dort erfolgt ein Schwenken der Schußhaube um eine horizontale Achse um etwa 180° zum Entleeren der mit den Schußdüsen nach oben gerichteten Schußhaube in die Entleerstation. Danach wird die Schußhaube mittels des Manipulators in die Spüleinrichtung verbracht und gespült bzw. abgestrahlt, und zwar durch innenseitiges und außenseitiges Besprühen bzw. Abstrahlen mit Kreislaufwasser. In einem nächsten Verfahrensschritt wird die Schußhaube in die Trockeneinrichtung verbracht, wo sie von dem die Oberflächen benetztenden Kreislaufwasser befreit wird. In einem nächsten Verfahrensschritt wird die Schußhaube in die ggf. auch als Inspektionsstation dienende Abgabestation verbracht und dort mittels des Manipulators um etwa 180° um eine horizontale Achse geschwenkt, so daß die Schußdüsen wieder nach unten gerichtet sind. Danach wird die Schußhaube auf eine in der Abgabestation mittlerweile bereitgestellte, gereinigte Palette gelegt und auf der Palette - auf der Abführeinrichtung - zu der Kernschießmaschine oder in ein Werkzeuglager rückgeführt.The firing hood deposited on the pallet is brought from the core shooter to the transfer station by means of the feed device. There the firing hood is lifted from the pallet by means of the manipulator and brought into the area above the emptying station. There, the firing hood is pivoted about a horizontal axis by approximately 180 ° in order to empty the firing hood, which is directed upwards with the firing nozzles, into the emptying station. Then the shot cap is brought into the rinsing device by means of the manipulator and rinsed or blasted, specifically by spraying or blasting with circulating water on the inside and outside. In a next process step, the firing hood is brought into the drying device, where it is freed from the circulating water wetting the surfaces. In a next process step, the firing hood is brought into the delivery station, which may also serve as an inspection station, and is pivoted there about a horizontal axis by means of the manipulator, so that the firing nozzles are again directed downward. The firing hood is then placed on a cleaned pallet which has meanwhile been made available in the delivery station and is returned on the pallet - on the discharge device - to the core shooter or to a tool store.

Hinsichtlich einer besonders effektiven Reinigung der Schußhauben ist es von großem Vorteil, wenn diese durch den Manipulator mit den Schußdüsen nach oben gerichtet in die Spüleinrichtung gestellt werden. Dabei muß jedoch gewährleistet sein, daß die Schußhauben auch innenseitig abgestrahlt bzw. abgesprüht werden. Die hier gewählte Anordnung der Schußhauben wird in der nachfolgenden Trockeneinrichtung beibehalten, so daß ein ungehindertes Abtropfen der mit Kreislaufwasser benetzten Schußhauben möglich ist. Hinsichtlich einer günstigen Abtaktung werden gleichzeitig zwei Schußhauben in zwei Trocknungseinrichtungen getrocknet, wobei die Reinigung der Schußhauben und/oder Paletten in zwei oder mehreren parallelen Linien mit erfindungsgemaßen Vorrichtungen erfolgen kann.With regard to a particularly effective cleaning of the weft hoods, it is of great advantage if these are directed through the manipulator with the weft nozzles upwards into the flushing device be put. However, it must be ensured that the shot caps are also blasted or sprayed on the inside. The arrangement of the shot caps chosen here is maintained in the subsequent drying device, so that unimpeded dripping of the shot caps wetted with circulating water is possible. With regard to a favorable cycle time, two shot caps are dried in two drying devices at the same time, it being possible for the shot caps and / or pallets to be cleaned in two or more parallel lines using devices according to the invention.

Die bereits zuvor in vorrichtungsmäßiger Hinsicht erläuterte Reinigung der Paletten kann sich in zwei alternativen Verfahrensschritten vollziehen. Einerseits könnten die Paletten nach Abheben der Schußhauben einem gesonderten Paletten-Reinigungspfad zugeführt werden. Dort würden die Paletten mittels eines Paletten-Manipulators um etwa 180° horizontal geschwenkt und mit der Ladefläche nach unten in die eigens vorgesehene Entleerstation entleert werden. In der Entleerstation könnte der an der Ladefläche haftende Sand mittels Bürsten abgebürstet werden. Die gereinigte Palette könnte dann der Abgabestation zugeführt werden und dort zur Aufnahme der gereinigten Schußhauben dienen.The cleaning of the pallets, which has already been explained in terms of the device, can be carried out in two alternative process steps. On the one hand, the pallets could be fed to a separate pallet cleaning path after the firing hoods had been lifted off. There, the pallets would be swiveled horizontally by approximately 180 ° by means of a pallet manipulator and emptied with the loading area downward into the specially provided emptying station. In the emptying station, the sand adhering to the loading area could be brushed off with brushes. The cleaned pallet could then be fed to the delivery station and be used to hold the cleaned firing hoods there.

Alternativ und hinsichtlich eines besonders geringen Flächenbedarfs könnte die auf dem Transfertisch nach Abheben der Schußhaube verbliebene Palette ebenfalls durch den Manipulator gegriffen und der eigentlich zum Entleeren der Schußhauben dienenden Entleerstation zum Entleeren zugeführt werden. Die gereinigte Palette könnte mittels des Manipulators auf den Transfertisch zurückgeführt und von dort der Abgabestation zugeführt werden, dort nämlich zur Aufnahme der gereinigten Schußhaube dienen. Wesentlich ist hier jedenfalls, daß der Manipulator abwechselnd eine Schußhaube und eine Palette greift, so daß die Handhabung und Reinigung von Schußhaube und Palette abwechselnd erfolgt. Ohne weiteres könnten hier mehrere Manipulatoren vorgesehen sein, so daß eine gleichzeitige Handhabung von Schußhaube und Palette möglich ist.Alternatively and with regard to a particularly small space requirement, the pallet remaining on the transfer table after lifting off the firing hood could also be gripped by the manipulator and fed to the emptying station which actually serves to empty the firing hoods. The cleaned pallet could be returned to the transfer table by means of the manipulator and fed from there to the delivery station, namely there to hold the cleaned firing hood. In any case, it is essential that the manipulator alternately grips a firing hood and a pallet, so that the handling and cleaning of the firing hood and pallet takes place alternately. Several manipulators could easily be provided here, so that simultaneous handling of the firing hood and pallet is possible.

Die unterhalb der Zuführeinrichtung angeordnete und zu der Abgabestation führende Rückführbahn übernimmt die gereinigte Palette von dem Transfertisch in dessen abgesenkter Position und führt die gereinigte Palette zu der Abgabestation zur Übernahme der gereinigten Schußhaube.The return path arranged below the feed device and leading to the delivery station takes the cleaned pallet from the transfer table in its lowered position and leads the cleaned pallet to the delivery station for taking over the cleaned firing hood.

Die Abgabestation bzw. dort vorgesehene Inspektionsstation könnte zwischen der Trockeneinrichtung und der Rückführbahn im Sinne eines Transfertisches ausgebildet sein. Die gereinigte Palette würde dann in einer abgesenkten Position von dem Transfertisch der Abgabestation auf eine Rückführbahn bzw. Rückführeinrichtung übernommen und zu der Abgabestation bzw. Inspektionsstation verfahren. In einer angehobenen Position des Transfertisches könnte dann die gereinigte Schußhaube auf der Palette übernommen werden. Die auf der Palette liegende Schußhaube würde dann gemeinsam mit der Palette über eine in der Ebene der angehobenen oder abgesenkten Position liegenden Abführbahn abgeführt bzw. zu der Kernschießmaschine oder einem Werkzeuglager rückgeführt werden.The delivery station or the inspection station provided there could be designed between the drying device and the return path in the sense of a transfer table. The cleaned pallet would then be taken over in a lowered position from the transfer table of the delivery station to a return path or return device and moved to the delivery station or inspection station. In a raised position of the transfer table, the cleaned firing hood could then be taken over on the pallet. The firing hood lying on the pallet would then be discharged together with the pallet via a discharge path lying in the plane of the raised or lowered position or returned to the core shooter or a tool store.

Es gibt nun verschiedene Möglichkeiten, die Lehre der vorliegenden Erfindung in vorteilhafter Weise auszugestalten und weiterzubilden. Dazu ist einerseits auf die den Patentansprüchen 1 und 34 nachgeordneten Ansprüche, andererseits auf die nachfolgende Erläuterung eines Ausführungsbeispiels der Erfindung anhand der Zeichnung zu verweisen. In Verbindung mit der Erläuterung des bevorzugten Ausführungsbeispiels der Erfindung anhand der Zeichnung werden auch im allgemeinen bevorzugte Ausgestaltungen und Weiterbildungen der Lehre erläutert. In der Zeichnung zeigt

Fig. 1
ein Ausführungsbeispiel einer erfindungsgemäßen Vorrichtung zur Schußhaubenreinigung in einer Draufsicht,
Fig. 2
den Gegenstand aus Fig. 1 in einer Seitenansicht,
Fig. 3
den Gegenstand aus Fig. 1 in einer Vorderansicht im Bereich der Entleereinrichtung, wobei hier eine Schußhaube entleert wird,
Fig. 4
den Gegenstand aus Fig. 1 in einer Vorderansicht im Bereich der Entleereinrichtung, wobei hier eine Palette entleert wird und
Fig. 5
den Gegenstand aus Fig. 1 in einer Vorderansicht im Bereich der Spüleinrichtung.
There are now various possibilities for advantageously designing and developing the teaching of the present invention. For this purpose, on the one hand, reference is made to the claims subordinate to patent claims 1 and 34, and on the other hand to the following explanation of an embodiment of the invention with reference to the drawing. In connection with the explanation of the preferred exemplary embodiment of the invention with reference to the drawing, generally preferred configurations and developments of the teaching are also explained. In the drawing shows
Fig. 1
an embodiment of an inventive device for cleaning the bonnet in a plan view,
Fig. 2
1 in a side view,
Fig. 3
1 in a front view in the area of the emptying device, a shot cap being emptied here,
Fig. 4
1 in a front view in the area of the emptying device, a pallet being emptied here and
Fig. 5
1 in a front view in the area of the flushing device.

Die Fig. 1 bis 4 zeigen gemeinsam eine Vorrichtung zur Schußhaubenreinigung bei der Herstellung gießfertiger Masken bzw. Kernpakete, die üblicherweise mittels linear angeordneter Kernschießmaschinen bzw. Schießstationen hergestellt werden. Die Kernschießmaschinen weisen eine eine Schußplatte 1 und Schußdüsen 2 aufweisende Schußhaube 3 auf. Die Schußhauben 3 sind von der in den Figuren nicht gezeigten Kernschießmaschine abkoppelbar und - mit den Schußdüsen 2 nach unten gerichtet - auf einer Palette 4 ablegbar.1 to 4 together show a device for cleaning the bonnet in the manufacture of ready-to-cast masks or core packages, which are usually produced by means of linearly arranged core shooting machines or shooting stations. The core shooters have a firing hood 3 having a firing plate 1 and firing nozzles 2. The firing hoods 3 can be uncoupled from the core shooting machine, not shown in the figures, and - with the firing nozzles 2 directed downwards - can be placed on a pallet 4.

In erfindungsgemäßer Weise sind eine Zuführeinrichtung 5, eine Übergabestation 6, eine Entleerstation 7, eine Spüleinrichtung 8, eine Trockeneinrichtung 9, eine u.a. auch als Inspektionsstation dienende Abgabestation 10 und eine Abführeinrichtung 11 vorgesehen. Hinsichtlich der voranstehend genannten Merkmale ist wesentlich, daß die auf der Palette 4 abgelegte Schußhaube 3 mittels der Zuführeinrichtung 5 von der in den Figuren nicht gezeigte Kernschießmaschine zu der Übergabestation 6 verbringbar, mittels eines Manipulators 12 von der Palette 4 hebbar und um 180° um eine horizontale Achse 13 geschwenkt - mit den Schußdüsen 2 nach oben - in die Entleerstation 7 entleerbar, in die Spüleinrichtung 8, die Trockeneinrichtung 9 verbringbar, in der Abgabestation 10 um etwa 180° um eine horizontale Achse 13 geschwenkt - mit den Schußdüsen 2 nach unten gerichtet - auf eine gereinigte Palette 4 positionierbar und über die Inspektionsstation mit der Abführeinrichtung 11 zu der nichtgezeigten Kernschießmaschine oder einem ebenfalls nicht gezeigten Werkzeuglager rückführbar ist.In the manner according to the invention, a feed device 5, a transfer station 6, an emptying station 7, a rinsing device 8, a drying device 9, a delivery station 10, which also serves as an inspection station, and a discharge device 11 are provided. With regard to the features mentioned above, it is essential that the firing hood 3 deposited on the pallet 4 can be moved from the core shooting machine (not shown in the figures) to the transfer station 6 by means of the feed device 5, can be lifted from the pallet 4 by means of a manipulator 12 and pivoted through 180 ° about a horizontal axis 13 - with the weft nozzles 2 facing upwards - can be emptied into the emptying station 7, into the rinsing device 8, the drying device 9 can be moved, in the dispensing station 10 by approximately 180 ° pivoted about a horizontal axis 13 - with the shot nozzles 2 directed downwards - can be positioned on a cleaned pallet 4 and can be returned via the inspection station with the discharge device 11 to the core shooter (not shown) or to a tool store (also not shown).

Fig. 1 zeigt besonderes deutlich, daß die Zuführeinrichtung 5 einen Rollenförderer 14 umfaßt. Die Übergabestation 6 ist als zwischen dem Rollenförderer 14 und der Entleerstation 7 wirkender Transfertisch 15 ausgeführt. Der Manipulator 12 ist zwischen der Übergabestation 6 und der Abgabestation 10 sowohl horizontal als auch vertikal verfahrbar, was besonders Fig. 2 zu entnehmen ist. Der Manipulator 12 weist des weiteren eine um eine horizontale Achse drehbare Greifeinrichtung 16 auf, die wiederum um die horizontale Achse 13 drehbare Greifbacken 17 aufweist.Fig. 1 shows particularly clearly that the feed device 5 comprises a roller conveyor 14. The transfer station 6 is designed as a transfer table 15 acting between the roller conveyor 14 and the emptying station 7. The manipulator 12 can be moved between the transfer station 6 and the delivery station 10 both horizontally and vertically, which can be seen particularly in FIG. 2. The manipulator 12 also has a gripping device 16 which can be rotated about a horizontal axis and which in turn has gripping jaws 17 which can be rotated about the horizontal axis 13.

Fig. 2 zeigt besonders deutlich, daß die Entleerstation 7 ein Sammelbehältnis 18 für Kernsand sowie einen Auslaß 19 für den gesammelten Kernsand 20 umfaßt. Das Sammelbehältnis 18 ist trichterförmig ausgebildet.2 shows particularly clearly that the emptying station 7 comprises a collecting container 18 for core sand and an outlet 19 for the collected core sand 20. The collecting container 18 is funnel-shaped.

Die Spüleinrichtung 8 weist ebenfalls gemäß der Darstellung in Fig. 2 von außerhalb und innerhalb der Schußhaube 3 wirkende Sprühköpfe 21 auf. Diese Sprühköpfe 21 sind mit Kreislaufwasser speisbar, was in Fig. 2 lediglich angedeutet ist. Hinsichtlich diesbezüglicher Details wird auf den allgemeinen Teil der Beschreibung verwiesen.The rinsing device 8 also has, as shown in FIG. 2, spray heads 21 acting from outside and inside the firing hood 3. These spray heads 21 can be fed with circulating water, which is only indicated in FIG. 2. With regard to details in this regard, reference is made to the general part of the description.

Die Trockeneinrichtung 8 weist Gebläse 22 zum Lufttrocknen der Schußhaube 3 auf. Insgesamt sind zwei nacheinander angeordnete Trockeneinrichtungen 9 vorgesehen.The drying device 8 has blowers 22 for air drying the firing hood 3. A total of two drying devices 9 arranged one after the other are provided.

Fig. 2 läßt des weiteren erkennen, daß die Spüleinrichtung 8 und die Trockeneinrichtungen 9 Rahmen- bzw. Stützteile 23 zur Aufnahme der Schußhauben 3 aufweisen. Diese Rahmen- bzw. Stützteile 23 dienen zum einfachen Einsetzen der zu behandelnden Schußhauben 3, so daß kein besonderes Zentrieren erforderlich ist.FIG. 2 further shows that the rinsing device 8 and the drying devices 9 have frame or support parts 23 for receiving the shooting hoods 3. These frame or support parts 23 are used for easy insertion of the shot caps 3 to be treated, so that no special centering is required.

Fig. 5 zeigt ganz besonders deutlich und im Detail, daß die Spüleinrichtung 8 mittels einer Abdeckhaube 24 abdeckbar bzw. schließbar ist. Gleiches gilt für die in Fig. 5 nicht gezeigte Trockeneinrichtung 9. Die Abdeckhaube 24 ist an der Spüleinrichtung 8 zugeordneten Schwenkarmen 25 angelenkt und mittels einer Zylinder-Kolben-Anordnung 26 betätigbar bzw. schwenkbar.Fig. 5 shows very clearly and in detail that the rinsing device 8 can be covered or closed by means of a cover 24. The same applies to the drying device 9 (not shown in FIG. 5). The cover 24 is articulated on the swivel arms 25 assigned to the flushing device 8 and can be actuated or swiveled by means of a cylinder-piston arrangement 26.

Fig. 1 läßt erkennen, daß die zuvor bereits mehrfach erwähnte Inspektionsstation der Abgabestation 10 zugeordnet ist. Die sich somit an die Trockeneinrichtung 9 anschließende Inspektionsstation dient zur Überprüfung der Reinigungsqualität der Schußhauben 3 einerseits und zur grundsätzlichen Überprüfung der Schußhauben 3 andererseits.1 shows that the inspection station already mentioned several times is assigned to the delivery station 10. The inspection station thus connected to the drying device 9 serves to check the cleaning quality of the firing hoods 3 on the one hand and to check the firing hoods 3 on the other hand.

Bei dem hier gewählten Ausführungsbeispiel dient der in Fig. 2 dargestellte Manipulator 12 auch zum Greifen der auf dem Transfertisch 15 nach Abheben der Schußhaube 3 verbliebenen Palette 4. Mittels des Manipulators 12 ist die Palette 4 der gleichen Entleerstation 7 zum Entleeren zuführbar, die auch zum Entleeren der Schußhaube 3 dient. Gemäß der Darstellung in den Figuren 3 und 4 ist der Entleerstation 7 eine verfahrbare Bürste 27 zum Abbürsten der Palette 4 zugeordnet. Die so gereinigte Palette 4 wird mittels des Manipulators 12 auf den Transfertisch 15 zurückverbracht und von dort der Abgabestation 10 zugeführt und dient dort zur Aufnahme der gereinigten Schußhaube.In the embodiment selected here, the manipulator 12 shown in FIG. 2 also serves to grip the pallet 4 that remains on the transfer table 15 after the firing hood 3 has been lifted off. By means of the manipulator 12, the pallet 4 can be fed to the same emptying station 7 for emptying, which is also used for emptying Emptying the firing hood 3 is used. According to the illustration in FIGS. 3 and 4, the emptying station 7 is assigned a movable brush 27 for brushing off the pallet 4. The pallet 4 cleaned in this way is moved onto the transfer table by means of the manipulator 12 15 brought back and fed from there to the delivery station 10 and is used to hold the cleaned firing hood.

Gemäß den Darstellungen in den Fig. 1 und 2 ist der Transfertisch 15 der Übergabestation 6 als Scherenhubtisch ausgeführt. Unterhalb der Zuführeinrichtung 5 ist eine die gereinigte Palette 4 von dem Transfertisch 15 in dessen abgesenkter Position übernehmende und zu der Abgabestation 10 führende Rückführbahn 28 angeordnet. Die Abgabestation 10 bzw. die der Abgabestation 10 zugeordnete Inspektionsstation ist als zwischen der Trockeneinrichtung 9 und der Rückführbahn 28 wirkender Transfertisch 29 ausgeführt. Der Transfertisch 29 der Abgabestation 10 ist wie auch der Transfertisch 15 der Übergabestation 6 als Scherenhubtisch ausgeführt. Des weiteren übernimmt der Transfertisch 29 der Abgabestation 10 in einer abgesenkten Position die gereinigte Palette 4 von der Rückführbahn 28 und verfährt diese zu der Abgabestation 10 bzw. der dort vorgesehenen Inspektionsstation. In einer angehobenen Position wird dann die gereinigte Schußhaube 3 auf der Palette 4 übernommen, so daß die auf der Palette 4 liegende Schußhaube 3 über eine in der Ebene der angehobenen oder abgesenkten Position liegende Abführbahn 30 ab- bzw. rückgeführt wird. Die die Abführbahn 30 umfassende Abführeinrichtung 11 umfaßt wie die Zuführeinrichtung 5 einen Rollenförderer 31.According to the representations in FIGS. 1 and 2, the transfer table 15 of the transfer station 6 is designed as a scissor lift table. A return path 28, which takes over the cleaned pallet 4 from the transfer table 15 in its lowered position and leads to the delivery station 10, is arranged below the feed device 5. The delivery station 10 or the inspection station assigned to the delivery station 10 is designed as a transfer table 29 acting between the drying device 9 and the return path 28. The transfer table 29 of the delivery station 10, like the transfer table 15 of the transfer station 6, is designed as a scissor lift table. Furthermore, the transfer table 29 of the delivery station 10 takes over the cleaned pallet 4 from the return path 28 in a lowered position and moves this to the delivery station 10 or the inspection station provided there. In a raised position, the cleaned shooting hood 3 is then taken over on the pallet 4, so that the shooting hood 3 lying on the pallet 4 is led away or returned via a discharge path 30 lying in the plane of the raised or lowered position. The discharge device 11 comprising the discharge path 30, like the feed device 5, comprises a roller conveyor 31.

Hinsichtlich des erfindungsgemäßen Verfahrens wird zur Vermeidung von Wiederholungen auf den allgemeinen Teil der Beschreibung verwiesen.With regard to the method according to the invention, reference is made to the general part of the description in order to avoid repetitions.

Abschließend sei hervorgehoben, daß das voranstehend lediglich beispielhaft genannte Ausführungsbeispiel die erfindungsgemäße Lehre lediglich erläutert, jedoch nicht auf das Ausführungsbeispiel einschränkt.In conclusion, it should be emphasized that the above-mentioned exemplary embodiment merely explains the teaching according to the invention, but does not restrict it to the exemplary embodiment.

Claims (19)

  1. An apparatus for cleaning shot hoods during the manufacture of shells or core packets that are ready for casting, by means of core shooters or shooting stations, preferably in a linear arrangement, the core shooters in each instance incorporating a shot hood (3) that comprises a shot plate (1) and shot nozzles (2), it being possible to uncouple the shot hood (3) from the core shooter and lay it on a pallet (4) or the like with the shot nozzles (2) pointing downward, characterized by a delivery system (5), a transfer station (6), an emptying station (7), a flushing system (8), a drying system (9), an exit station (10), optionally an inspection station, and a removal system (11),
    - the shot hood (3) that has been laid upon the pallet (4) being moveable from the core shooter to the transfer station (6) by means of the delivery system (5), it then being possible to raise it from the pallet (4) by means of a first manipulator (12) and pivot it through approximately 180° about a horizontal axis (13) and then move it with the shot nozzles (2) pointing upward to the emptying station (7), in which it is emptied, to the flushing system (8), the drying system (9), and then to the exit station (10) where it is pivoted through approximately 180° about a horizontal axis (13), when, with the shot nozzles (2) directed downwards, where it can be positioned upon a clean pallet (4) and then returned, optionally through the inspection station, by the removal system (11) to the core shooter or to a tool store.
  2. An apparatus as defined in claim 1 characterized in that the delivery system (5) and possibly the removal system (11) comprises a roller-type conveyor (14 or 31).
  3. An apparatus as defined in claim 1 or claim 2, characterized in that the transfer station (6) is in the form of a transfer table (15) that works between the roller conveyor (14) and the emptying station (7).
  4. An apparatus as defined in one of the claims 1 to 3, characterized in that the manipulator (12) can move between the transfer station (6) and the exit station (10) both horizontally and vertically, whereas the manipulator (12) preferably incorporates a gripper system (16) that can be rotated about a horizontal axis (13), whereas the gripper system (16) incorporates gripper jaws (17) that can be pivoted preferably about a horizontal axis (13) and whereas the manipulator (12) possibly incorporates a vibrator system for vibrating the shot hood (3).
  5. An apparatus as defined in one of the claims 1 to 4, characterized in that the emptying station (7) incorporates a collector container (18) for core sand (20) as well as an outlet (19) for the core sand (20) that has been collected and that the collector container (18) is configured so as to be largely funnel-shaped.
  6. An apparatus as defined in one of the claims 1 to 5, characterized in that the flushing system (8) incorporates spray heads (21) that act both outside and inside the shot hood (3), that the spray heads (21) can be supplied with circulating water, that the flushing system (8) possibly incorporates a drain that runs into a collector basin and a feed line that leads from the collector basin to the spray heads (21) and that the collector basin incorporates at least a pump and a filter system to filter the circulating water.
  7. An apparatus as defined in one of the claims 1 to 6, characterized in that the drying system (9) incorporates at least one fan (22) to air dry the shot hood (3), whereas air drying is effected preferably at approximately 55°C and whereas altogether two drying systems (9) can be provided, these being arranged preferably one after the other.
  8. An apparatus as defined in one of the claims 1 to 7, characterized in that the flushing system (8) and the drying systems (9) incorporate frame or supporting elements (23) to receive the shot hoods (3).
  9. An apparatus as defined in one of the claims 1 to 8, characterized in that the flushing system (8) and the drying systems (9) can each be covered or closed off by means of a covering cowl (24) and that the covering cowls (24) are articulated onto pivot arms (25) that are associated with the particular system and can be operated or traversed, preferably by means of a cylinder-piston arrangement (26).
  10. An apparatus as defined in one of the claims 1 to 9, characterized in that the inspection station is associated with the exit station (10) and that the inspection station that is adjacent to the drying systems (9) preferably includes non-contact type sensors to scan the surfaces of the shot hood (3).
  11. An apparatus as defined in one of the claims 1 to 10, characterized in that the pallet (4) can be moved in the transfer station (6) to a separate pallet-cleaning path after the shot hood has been raised, that the pallet-cleaning path incorporates a delivery system, a pallet manipulator, and an emptying station (7), it being possible to pivot the pallet through approximately 180° about a horizontal axis (13) by means of the pallet manipulator and empty it, with the supporting surface facing downwards, into the emptying station (7), whereas the emptying station (7) incorporates a brush (27) to brush of the sand (20) that is adhering to the load-bearing surface of the pallet (4).
  12. An apparatus as defined in claim 3 and optionally one of the claims 4 to 11, characterized in that the manipulator (12) also serves to grip the pallet (4) that remains on the transfer table (29) once the shot hood (3) has been raised, and the pallet (4) can be moved by means of the manipulator (12) from the emptying station (7) in order to be emptied, that a brush (27) which is preferably moveable and which is used to brush off the pallet (4) is associated with the emptying station (7), that the cleaned pallet (4) can be moved back to the transfer table (29) by means of the manipulator (12) and from there be moved to the exit station (10) and used to accept the cleaned shot hood (3), whereas the transfer table (15) of the transfer station is in the form of an elevator table, preferably a scissors-leg elevator table and whereas a return track (28) is arranged beneath the delivery system (5), this system taking over the cleaned pallet (4) from the transfer table (15) when this is in its lowered position, and leading to the exit station (10).
  13. An apparatus as defined in one of the claims 1 to 12, characterized in that the exit station (28) or the inspection station is in the form of a transfer table (29) that works between the drying system (9) and the return track (28) and that the transfer table (29) of the exit station (10) is in the form of an elevator table, in particular a scissor-leg elevator table, whereas the transfer table (29) of the exit station (10) when in a lowered position takes over the clean pallet (4) from the return track (28), moves this to the exit station (10) or to the inspection station and, in a raised position, takes over the cleaned shot hood (3) on the pallet (4); and in that the shot hood (3) that is lying on the pallet (4) can be moved away on a removal track (30) lying in the plane of the raised or lowered position.
  14. A procedure for cleaning shot hoods during the production of shells or core packets that are ready for casting, by means of core shooters or shooting stations that are preferably in a linear arrangement, each of the core shooters incorporating a shot hood (3) that comprises a shot plate (1) and shot nozzles (2) and the shot hood (3) can be uncoupled from the core shooter and set on a pallet (4) or the like with the shot nozzles (2) pointing downward, characterized by the following process steps:
    Bringing the shot hood (3) that has been laid on the pallet (4) from the core shooter to the transfer station (6) by means of the delivery system (5);
    Lifting the shot hood (3) from the pallet (4) by means of the manipulator (12), moving the shot hood (3) into the area above the emptying station (7) and pivoting the shot hood (3) about a horizontal axis (13) through approximately 180° so as to empty the shot hood (3), with its shot nozzles (2) directed upward, into the emptying station (7);
    Bringing the shot hood (3) into the flushing system (3) by means of the manipulator (12) and flushing the shot hood (3) by spraying or blasting it with circulating water, both inside and outside;
    Bringing the shot hood (3) into the drying system (9) and drying the shot hood (3) that has been wet with circulating water;
    Bringing the shot hood (3) into the exit station (10) that optionally also serves as the inspection station, and pivoting the shot hood (3) through approximately 180° about a horizontal axis (13) by means of the manipulator (12);
    Positioning the shot hood (3), with the shot nozzles (2) pointing downwards, on a cleaned pallet (4) that has been made ready in the exit station (10);
    Returning the shot hood (3) that has been laid on the pallet (4) and the removal system (11) to the core shooter or into a tool store.
  15. An apparatus as defined in claim 14, characterized in that the shot hood (3) is placed in the flushing system (8) by the manipulator with the shot nozzles (2) pointing upward and that possibly the arrangement of the shot hood (3) is retained in the following drying system (9), whereas preferably two shot hoods (3) are dried simultaneously in two drying systems (9).
  16. A procedure as defined in one of the claims 14 to 15, characterized in that cleaning the shot hoods (3) and/or the pallets (4) is effected in two parallel lines incorporating apparatuses as defined in claims 1 to 13.
  17. A procedure as defined in one of the claims 14 to 16, characterized in that the pallet (4) is moved to a separate pallet-cleaning path once the shot hood (3) has been lifted and that the pallet (4) is preferably pivoted horizontally through approximately 180° by means of a pallet manipulator and is emptied into the emptying station (7) with the load-bearing surface facing downard, whereas sand (20) adhering to the load-bearing surface is brushed off in the emptying station (7) and whereas the cleaned pallet (4) is moved to the exit station (10) and serves to accept the cleaned shot hood (3).
  18. A procedure as defined in one of the claims 14 to 17, characterized in that the pallet that remains on the transfer table (15) once the shot hood (3) has been lifted is similarly gripped by the manipulator (12) and moved to the emptying station (7) to be emptied and that the cleaned pallet (4) is moved back onto the transfer table (15) by means of the manipulator (12) and from there moved to the exit station (10) where it serves to accept the cleaned shot hood (3), whereas the return track (28) that is arranged beneath the delivery system (5) and which leads to the exit station (10) takes over the cleaned pallet (4) from the transfer table (29) when this is in its lowered position and whereas possibly the exit station (10) or the inspection station acts between the drying system (9) and the return track (28) as a transfer table (29).
  19. A procedure as defined in claim 18, characterized in that the cleaned pallet (4) is taken over from the exit station (10) onto a return track (28) when the transfer table is in its lowered position and moved to the exit station (10) or inspection station, the cleaned shot hood (3) is moved onto the pallet (4) in a raised position and the shot hood (3) that is lying on the pallet (4) is moved away on a removal track (30) that lies in the plane of the raised or lowered position.
EP94105433A 1993-07-09 1994-04-08 Core shot hood cleaning assembly and method for the production of mould shells or cores Expired - Lifetime EP0636438B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4322986A DE4322986C1 (en) 1993-07-09 1993-07-09 Device and method for cleaning the bonnet in the manufacture of ready-to-cast masks or core packages
DE4322986 1993-07-09

Publications (2)

Publication Number Publication Date
EP0636438A1 EP0636438A1 (en) 1995-02-01
EP0636438B1 true EP0636438B1 (en) 1997-10-29

Family

ID=6492407

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94105433A Expired - Lifetime EP0636438B1 (en) 1993-07-09 1994-04-08 Core shot hood cleaning assembly and method for the production of mould shells or cores

Country Status (6)

Country Link
US (1) US5544694A (en)
EP (1) EP0636438B1 (en)
CA (1) CA2126728A1 (en)
DE (2) DE4322986C1 (en)
DK (1) DK0636438T3 (en)
ES (1) ES2109538T3 (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2126449B1 (en) * 1995-08-02 1999-11-16 Loramendi Sa SYSTEM FOR THE EXCHANGE AND CLEANING OF BLOWING PLATES IN MALE BLOWING MACHINES.
WO1998019810A1 (en) * 1996-11-04 1998-05-14 Hottinger Maschinenbau Gmbh Facility and method for producing cast shells or cast core packs
KR100837977B1 (en) 2006-12-12 2008-06-13 현대자동차주식회사 Mold core transfer system
ES2542894B1 (en) * 2014-02-11 2016-08-03 Loramendi, S.Coop. Machine and method for manufacturing sand males
CN105728662B (en) * 2016-04-29 2018-05-15 重庆新红旗缸盖制造有限公司 Core shooter shooting cylinder Pneumatic power elevator apparatus
CN105921700B (en) * 2016-07-11 2018-03-20 重庆新红旗缸盖制造有限公司 Core shooter dolly running fix device
CN106964760A (en) * 2017-05-19 2017-07-21 奥林精密机械科技（长兴）有限公司 Arrangement Double-station core shooter before and after a kind of
CN110732641B (en) * 2019-10-08 2021-04-27 广州明珞汽车装备有限公司 Automatic core assembling device

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Publication number Priority date Publication date Assignee Title
CH439599A (en) * 1966-08-04 1967-07-15 Amsted Ind Inc Cleaning device for casting molds
DE2304564A1 (en) * 1973-01-31 1974-08-08 Cobomat Apparatebau Gmbh Automatic cold-box mould making machine - includes weighing machine and mould assembly devices
US4135569A (en) * 1977-07-13 1979-01-23 Acme-Cleveland Corporation Molding machine clean out
US4190096A (en) * 1978-04-17 1980-02-26 Netes Leonid Y Manipulator for separating coated permanent moulds
JPS59133939A (en) * 1983-01-21 1984-08-01 Sintokogio Ltd Cleaning device of blow plate for blow type mold forming machine
US4572273A (en) * 1983-10-26 1986-02-25 Naniwa Products Co. Ltd. Blow plate and/or blow nozzle automatic cleaning device
EP0139797B1 (en) * 1983-10-26 1987-12-02 Naniwa Products Co, Ltd An automatic cleaning device for a molding machine
FR2649919B1 (en) * 1989-07-21 1991-10-04 Peugeot INSTALLATION FOR CLEANING FOUNDRY PARTS

Also Published As

Publication number Publication date
DE4322986C1 (en) 1994-07-07
DK0636438T3 (en) 1997-12-08
ES2109538T3 (en) 1998-01-16
US5544694A (en) 1996-08-13
DE59404455D1 (en) 1997-12-04
EP0636438A1 (en) 1995-02-01
CA2126728A1 (en) 1995-01-10

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