EP0246394B1 - Vorrichtung zum Mischen von Sand für Giessereiformen oder Kerne - Google Patents

Vorrichtung zum Mischen von Sand für Giessereiformen oder Kerne Download PDF

Info

Publication number
EP0246394B1
EP0246394B1 EP87101231A EP87101231A EP0246394B1 EP 0246394 B1 EP0246394 B1 EP 0246394B1 EP 87101231 A EP87101231 A EP 87101231A EP 87101231 A EP87101231 A EP 87101231A EP 0246394 B1 EP0246394 B1 EP 0246394B1
Authority
EP
European Patent Office
Prior art keywords
mixing chamber
mixing
plate
cleaning device
chamber
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP87101231A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0246394A2 (de
EP0246394A3 (en
Inventor
Joachim Dipl.-Ing. Laempe
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to AT87101231T priority Critical patent/ATE62433T1/de
Publication of EP0246394A2 publication Critical patent/EP0246394A2/de
Publication of EP0246394A3 publication Critical patent/EP0246394A3/de
Application granted granted Critical
Publication of EP0246394B1 publication Critical patent/EP0246394B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • 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
    • B22C5/04—Machines or devices specially designed for dressing or handling the mould material so far as specially adapted for that purpose by grinding, blending, mixing, kneading, or stirring
    • B22C5/0409—Blending, mixing, kneading or stirring; Methods therefor
    • B22C5/044—Devices having a vertical stirrer shaft in a fixed receptacle
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F31/00—Mixers with shaking, oscillating, or vibrating mechanisms
    • B01F31/40—Mixers with shaking, oscillating, or vibrating mechanisms with an axially oscillating rotary stirrer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F33/00—Other mixers; Mixing plants; Combinations of mixers
    • B01F33/80—Mixing plants; Combinations of mixers
    • B01F33/85—Mixing plants with mixing receptacles or mixing tools that can be indexed into different working positions
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
    • B01F35/10—Maintenance of mixers
    • B01F35/145—Washing or cleaning mixers not provided for in other groups in this subclass; Inhibiting build-up of material on machine parts using other means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
    • B01F35/40—Mounting or supporting mixing devices or receptacles; Clamping or holding arrangements therefor
    • B01F35/42—Clamping or holding arrangements for mounting receptacles on mixing devices
    • B01F35/423—Clamping or holding arrangements for mounting receptacles on mixing devices of the vertically movable, two-plates type

Definitions

  • the invention relates to a device for mixing sand with preferably liquid binders and optionally additional additives such as solids from wood flour, iron oxide powder or the like, for the production of foundry molds or cores, with a cylindrical housing as a mixing chamber, in which the individual components of the mixture in a predetermined amount dosed, and with a mixing tool that extends across the cross-section of the mixing chamber and a lower discharge opening.
  • Such a device for mixing solids and liquids which is not intended for mixing sand with binders for the production of foundry molds or cores, is known from DE-OS 22 48 394.
  • This solid and liquid mixer is primarily intended for the production of rigid concrete.
  • the lower emptying opening can be opened by a plate which can be pivoted downwards and which can open up a little more than half of the lower cross-sectional area.
  • This mixing device would not be suitable for a precisely metered mixture of sand with binders for molds or cores, since at least part of the mix could remain next to the opening flap. In addition, this would result in a considerable amount of cleaning after each mixing and emptying process.
  • the object is therefore to create a device of the type mentioned at the outset, with which the mixing chamber can be emptied quickly and practically without residues without additional measures, with the shortest possible mixing time and thorough mixing.
  • the cleaning effort for the interior of the mixer and the mixing tool should be reduced or avoided and no mixed or unmixed sand residues should remain due to the process.
  • the mixing chamber is open at the bottom and slidably mounted on a plate which closes the emptying opening during the mixing process, that the plate has a perforation through which the mixing chamber can be pushed for emptying that for moving the Mixing chamber a lid closing this and the agitator can be raised over the upper end face of the mixing chamber and that a cleaning device is provided for the mixing chamber, which can be inserted into the mixing chamber in its emptying position.
  • the perforation of the plate corresponds at least approximately to the cross section of the mixing chamber. Accordingly, the mixture from the mixing chamber can pass through this perforation without hindrance.
  • the mixing tool can be axially moved back and forth in the mixing chamber with the drive running during the mixing process.
  • the aforementioned mixing effect can be improved and intensified by these multiple opposing axial movements of the mixing tool.
  • a particularly expedient and simple to implement and also advantageous embodiment, especially for an embodiment of the invention which improves emptying, can consist in that the cylindrical mixing chamber is arranged vertically and the mixing tool can be moved up and / or down in it for mixing.
  • the axial extension of the mixing tool can be smaller than the mixing chamber, so that it can still remain completely within the mixing chamber during the mentioned axial movements, while a mixing tool extended in the axial direction could also wholly or partially emerge from the mixing chamber during these movements.
  • the ratio of the diameter to the length or height of the mixing chamber is at least one or less than one.
  • a somewhat longer axial movement of the mixing tool is then required, but the cross section of the segments of the substances to be mixed that are traversed is smaller, so that the torque on the mixing tool can be smaller and this smaller cross section can also be better detected and mixed.
  • the filling opening for the sand and / or the filling opening or openings for additional mixture constituents are expediently provided on an end cover of the mixing chamber, and in the case of a vertically standing mixing chamber on an upper end cover and can pass through this lid. This results in a particularly simple construction and also the filling is simplified because the end cover does not have to be removed.
  • An embodiment of the invention of its own worthy of protection which is particularly advantageous for an intimate and uniform mixing of all components, can consist in that all components of the mixture can be filled in simultaneously and evenly over the length or height of the mixing chamber and for the sand and the mixture components are preferably each provided a separate inlet to the interior of the mixing chamber. This results in practically interlocking columns of the individual mixture constituents during the filling, so that practically identical quantitative ratios of the mixture constituents already exist over each cross section of the mixing chamber.
  • the mixing tool then travels through the individual cross sections of the mixing chamber on its axial adjustment path, these mixing components, which are more or less adjacent to one another, are then thoroughly mixed, with only the components in a cross section that are already in the correct ratio having to be mixed in each case.
  • the mixing time required is correspondingly short.
  • a still further improvement in the mixing results if at least at the outlet for the binders and additives there are nozzles for distributing the binders and additives when filling into the mixing chamber.
  • the sand that is filled at the same time is already saturated with these additives, so that not only individual columns of the mixing constituents are formed in the mixing chamber, but in addition to areas with sand only, areas also arise in which the sand and the binders have already penetrated, that is to say are partially premixed.
  • an intimate and uniform mixing of all components can take place even faster during the axial movement of the rotating mixing tool.
  • binders and additives are present in a much smaller amount than the sand volume, so that uniform distribution is often difficult and, in the case of mixing devices which do not function well, either a correspondingly longer mixing time or an overdose of these binders and additives is necessary is to have the minimum amount of binder and additives even in areas of poor mixing.
  • At least one impeller can be provided as the mixing tool. This is a particularly simple mixing tool which, however, brings about thorough mixing in the respective cross section and can also be easily adjusted in the axial direction. If necessary, however, several such impellers can also be arranged one behind the other in the axial direction.
  • the mixing chamber is permanently installed over a perforation and is arranged between the mixing chamber and the perforation of a slide plate or the like. In this case, the slide plate must be removed to empty the mixing chamber.
  • a further embodiment of the invention can consist in that several mixing chambers are slidably arranged on the plate towards the same perforation or in each case towards a separate emptying perforation. This can increase the throughput of mixed sand.
  • Embodiments of the invention with respect to the axial adjustment of the mixing tool and the lid holder are the subject of further claims.
  • a device designated as a whole by 1 is used to mix sand with preferably liquid binders and additional additives such as solids, for example wood flour, iron oxide powder or the like, around the sand to be prepared so that it is suitable for the production of foundry molds and especially cores in foundries.
  • additional additives such as solids, for example wood flour, iron oxide powder or the like
  • the device 1 has a cylindrical housing as a mixing chamber 2, into which the individual components of the mixture are poured in a predetermined amount, which will be explained in more detail below with reference to FIGS. 3 to 5.
  • the device 1 includes, above all, a mixing tool 3, which extends over the cross section of the mixing chamber 2, and an emptying opening 4.
  • the double arrow Pf 1 in Fig. 1, 2 and 6 indicates that the mixing tool 3 is axially adjustable over the length of the mixing chamber 2 during the mixing process.
  • the mixing tool 3 rotates to perform its mixer function, it is also moved axially, so that the entire contents of the mixing chamber 2 are gradually grasped and processed by the mixing tool 3.
  • the mixing tool 3 rotates to perform its mixer function, it is also moved axially, so that the entire contents of the mixing chamber 2 are gradually grasped and processed by the mixing tool 3.
  • the material to be mixed is also circulated in the axial direction of the mixing chamber 2.
  • the double arrow makes it clear that the mixing tool 3 _ of course with the drive running _ is not only axially adjusted axially in the mixing chamber 2 during the mixing process, but can also be moved back and forth. This can Float can of course also be performed multiple times.
  • the cylindrical mixing chamber 2 is arranged vertically and the mixing tool 3 can thus be moved up and down in it for mixing.
  • the mixing tool 3 is smaller in its axial extent than the mixing chamber 2.
  • a mixing tool 3 would also be conceivable, the extent of which corresponds approximately to the axial length or the height of the mixing chamber and can nevertheless be moved up and down in it, for which purpose it would then have to emerge via at least one end face of the mixing chamber 2. Due to the mentioned dimension of the mixing tool 3 smaller than that of the mixing chamber 2, however, the mixing chamber 2 can advantageously remain completely closed during the mixing process.
  • the ratio of the diameter to the length or height of the mixing chamber 2 is less than one. It is thereby achieved that the mixing tool 3 and the cross-section to be machined with a relatively large internal volume of the mixing chamber 2 need not be so large, so that the rotary drive power for the mixing tool 3 with a good or even improved mixing quality is lower than with an inverse ratio of Dimensions can be chosen.
  • mixing tool 3 shows three pillars of binders and additives, which are located within the surrounding sand, not shown in more detail. If the mixing tool 3 is now rotated up and down within a mixing chamber 2 filled in this way, all the cross sections of the mixing chamber 2 are mixed in succession, but at the same time there is also an axial distribution and mixing, so that overall a very uniform mixing within the mixing chamber 2 can be manufactured.
  • FIG. 5 shows part of the cover 9 with a feed line leading through it. It can be seen that a nozzle 10 is provided at the outlet of the feeder 8 for binders or additives, which allows a better distribution of the binders and additives causes when filling into the mixing chamber 2. This results in columns of material after filling, as indicated in FIG. 4. Binder and additives are then already mixed with sand over a certain cross-section or have already penetrated the sand to the extent shown, so that the subsequent mixing is quicker or the uniformity of the distribution can be achieved more quickly or can be better ensured.
  • At least one impeller is provided as the mixing tool 3. It is obvious that several impellers could also be arranged one behind the other in the axial direction.
  • the tubular or cylindrical mixing chamber 2 is open at the bottom, wherein this emptying opening 4 of the mixing chamber 2 extends over its entire cross section, so that no residues or odor on any opening edge when emptying. Like. Can remain.
  • the mixing chamber 2 is slidably mounted for emptying on a _ preferably abrasion-resistant _ plate 11 and this plate 11 has a perforation 12 which in turn corresponds at least approximately to the cross section of the mixing chamber 2 and over which the mixing chamber 2 can be pushed for emptying.
  • the emptying opening 4 of the mixing chamber 2 is made to overlap with the perforation 12 in the plate 11 by a corresponding displacement of the mixing chamber or possibly also the plate 11, the mixed contents of the mixing chamber 2 can fall out of the mixing chamber 2 unhindered, advantageously there is no possibility that residues remain in the mixing chamber 2. This ensures that the metered amount of the mixed sand reaches its destination and a subsequent mixture, possibly modified in its composition, cannot be falsified.
  • the perforation 12 in the plate 11 can expediently be arranged above a molding or core shooting machine, so that the mixed sand immediately reaches the corresponding machine.
  • the mixing chamber 2 could also be permanently installed over a perforation 12 and then a slide plate or the like could be arranged between the mixing chamber 2 and the perforation 12. In this case, the mixing chamber 2 would remain stationary while the slide plate would have to be opened.
  • Fig. 6 indicates that several _ in this case two _ mixing chambers 2 on the plate 11 to the same perforation 12 can be arranged displaceably. Of course, however, it would also be possible to provide separate emptying holes 12 for each mixing chamber 2. Either a machine located under the perforation 12 can be filled more often and more quickly, or several machines can be fed simultaneously or in any order from their own mixing chamber 2.
  • the cover 9 with the feed lines 6 and 8 and the agitator 3 can be lifted over the upper end face of the mixing chamber 2, so that the mixing chamber is free and simple towards the perforation 12 without these installations and can be moved back to the mixed position.
  • This construction allows both the upward and downward movement of the mixing tool 3 during the mixing process and the lifting of the mixing tool 3 above the mixing chamber 2 upwards for its displacement in a simple manner, because the drive of the mixing tool 3 is supported in the bearing plate 14 by the motor 13 and can be arranged, from which a corresponding axis or shaft 17 leads to the actual mixing tool 3, wherein the distances between all these parts can remain rigid.
  • the upward and downward movement of the mixing tool 3 therefore does not require flexible power transmission on the rotary drive of this mixing tool 3.
  • FIGS. 1 and 2 it can also be seen that a holder 18 is provided for the cover 9 of the mixing chamber 2 having the feed lines 6 and 8, lifting cylinders 19 or the like acting between this holder 18 and the cover 9 the pressing of the lid 9 during the mixing process and on the other hand the lifting of the lid 9 are provided for a displacement of the mixing chamber 2 in order to empty it.
  • the lid 9 must namely on the one hand, remain firmly on the mixing chamber 2 during the up and down movement of the mixing tool 3 during the mixing process, which is why the drive shaft 17 passes through a corresponding central opening 20 of the cover 9. On the other hand, it must also be able to be raised for the displacement of the mixing chamber 2.
  • Two lifting cylinders 19 of this type can be seen, and two working cylinders 16 are also provided for lifting the bearing plate 14 and moving the bearing plate 14 up and down with the mixing tool 3 for a drive movement that is as symmetrical as possible parallel to one another. To move the mixing chamber 2 towards the perforation 12, however, a single working cylinder 21 is sufficient.
  • holding arms 22 are provided laterally to the side of the mixing chamber 2 as a holder 18 for the cover 9, outside of its displacement path.
  • a cleaning device 25 can be provided for the mixing chamber 2, which can be introduced into the mixing chamber 2 in its emptying position in a manner to be described.
  • the cleaning device 25 for the mixing chamber is to and fro in the direction of its central axis movable, which means an up and down movement in the exemplary embodiment.
  • the cleaning device 25 In the starting position, the cleaning device 25 is at a distance from the entry of the mixing chamber 2, that is, in the vertical arrangement shown, above the mixing chamber 2. If the mixing chamber is moved from the position shown in FIGS. 1 and 6 to the emptying position, as described above it is then automatically located below the cleaning device 25.
  • the cleaning device is arranged such that it can be moved up and down axially above the perforation 12 of the plate 11 when the mixing chamber 2 is arranged vertically. In the emptying position of the mixing chamber, it can thus be introduced into the mixing chamber 2 from the position shown and moved downwards in order to expel or remove any residues of the mixture which are stuck or stuck in the mixing chamber. Then it is moved up again to the position shown.
  • the cleaning device 25 has a slide 26 which corresponds approximately to the cross-section of the mixing chamber 2 in its outer contour and is movable axially through the mixing chamber.
  • the mixing chamber 2 can be cleaned by mechanical means alone.
  • the entire cleaning device 25 can be moved back and forth together with the mixing tool 3, that is to say it can be moved up and down in the vertical arrangement of the mixing chamber 2 shown in the exemplary embodiment. This is achieved in a simple manner in that the cleaning device 25 is fastened to the same bearing plate 14 as the mixing tool 3 and is at a distance from the mixing tool 3 which preferably corresponds to the displacement of the mixing chamber 2 from its mixing position into the emptying position.
  • the cleaning device 25 is therefore moved up and down synchronously with the mixing tool 3, even if it does not have to carry out any cleaning work, but this saves a separate drive for this cleaning device or a subsequent coupling or the like. If, after the mixing process, the mixing tool 3 is removed upwards from the mixing chamber 2 in the manner described and this is then moved into the emptying position, it automatically gets under the cleaning device 25.
  • the cleaning device 25 has two parallel plates 28, leaving an air gap 27 between them, which together form the aforementioned slide 26 and are connected to a compressed air connection, the gap 27 between the plates 28 serving as an outlet for the cleaning air when the cleaning device is moved 25 is directed through the mixing chamber 2 against the wall thereof.
  • the plates or at least the rear plate 28 in the feed direction can also carry out mechanical cleaning.
  • the holder for the plate-shaped cleaning device 25 can be designed as a hollow rod 29, which at the same time as a compressed air supply into the intermediate space serves between the two plates 28 forming the cleaning device 25.
  • the aforementioned plate 28 of the cleaning device 25, which is further away from the emptying opening 4, could have a seal (not shown in more detail) with respect to the wall of the mixing chamber, in order to direct the cleaning air as completely as possible in the direction of emptying and to enable the already mentioned additional mechanical action on the wall of the mixing chamber.
  • the cleaning device 25 and its holding rod 29, which serves as a feed pipe are held by a strip 30 which is fastened to a narrow side of the bearing plate 14, in this case angularly shaped, the holding rod being expediently arranged above the center of the perforations 12 in the plate 11.
  • a groove 31 which is open at the bottom and which has at least one compressed air connection 32 can run around, through which at least during the displacement of the mixing chamber 2 Compressed air can be supplied on the plate 11 of the groove 31.
  • the arrows indicate that this not only reduces the friction with respect to the plate 11, but also repeatedly blows the contents of the mixing chamber 2 towards the center thereof and thus prevents the plate 11 and its surroundings from being contaminated by the contents of the mixing chamber 2 becomes.
  • an outer circumferential collar 33 of larger diameter than the mixing chamber itself is provided, on its side facing in the direction of emptying, in the exemplary embodiment the underside, the groove 31 is open, so that the air pressed into the groove 31 is blown against the plate 11.
  • the air inlets 32 are arranged on the outer edge or, as shown in FIG. 7, on the side of the collar 33 facing away from the groove opening.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mixers Of The Rotary Stirring Type (AREA)
  • Mold Materials And Core Materials (AREA)
  • Processing Of Solid Wastes (AREA)
  • Molds, Cores, And Manufacturing Methods Thereof (AREA)
  • Casting Devices For Molds (AREA)
EP87101231A 1986-05-20 1987-01-29 Vorrichtung zum Mischen von Sand für Giessereiformen oder Kerne Expired - Lifetime EP0246394B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT87101231T ATE62433T1 (de) 1986-05-20 1987-01-29 Vorrichtung zum mischen von sand fuer giessereiformen oder kerne.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3616894 1986-05-20
DE19863616894 DE3616894A1 (de) 1986-05-20 1986-05-20 Vorrichtung zum mischen von sand fuer giessereiformen oder kerne

Publications (3)

Publication Number Publication Date
EP0246394A2 EP0246394A2 (de) 1987-11-25
EP0246394A3 EP0246394A3 (en) 1988-10-05
EP0246394B1 true EP0246394B1 (de) 1991-04-10

Family

ID=6301189

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87101231A Expired - Lifetime EP0246394B1 (de) 1986-05-20 1987-01-29 Vorrichtung zum Mischen von Sand für Giessereiformen oder Kerne

Country Status (5)

Country Link
US (1) US4798471A (da)
EP (1) EP0246394B1 (da)
AT (1) ATE62433T1 (da)
DE (2) DE3616894A1 (da)
ES (1) ES2022164B3 (da)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3919534A1 (de) * 1989-06-15 1990-12-20 Merck Patent Gmbh Verfahren und einrichtung zum vorbereiten von knochenzement
US5257862A (en) * 1993-04-26 1993-11-02 Carl Gardner Mixer-washer apparatus
SE503118C2 (sv) * 1993-11-25 1996-03-25 Asea Atom Ab Förfarande och anordning vid omrörning av en blandning i en behållare
IT1282436B1 (it) * 1995-03-21 1998-03-23 Tecnorama Srl Variante del sistema di erogazione della apparecchiatura di dosaggio di materiali in polvere, granulati e microperle ed abbinamento di
JP3595892B2 (ja) * 1995-12-20 2004-12-02 有限会社勝製作所 合成樹脂原料の攪拌装置
US7086778B2 (en) * 2000-10-09 2006-08-08 Levtech, Inc. System using a levitating, rotating pumping or mixing element and related methods
EP3076399B1 (en) * 2013-11-26 2019-01-09 Ingeniería Y Marketing, S.A. Portable device for the boration of continuously flowing water
CN104096493A (zh) * 2014-07-10 2014-10-15 湖州大周高分子材料有限公司 多个反应釜旋转搅拌装置及搅拌方法
CN113664146B (zh) * 2021-08-06 2023-08-04 含山县火炬铸造有限公司 一种井盖铸造用型砂筛分清洁装置
CN117531417B (zh) * 2024-01-10 2024-05-24 成都三扬新材科技有限公司 一种用于水性工业漆的加工装置

Family Cites Families (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US542669A (en) * 1895-07-16 Barrel-washer
US722310A (en) * 1901-05-15 1903-03-10 Valentin Lapp Apparatus for preparing bruised or ground malt for mashing.
US2115809A (en) * 1934-05-16 1938-05-03 Goldman Bronislaw Means for automatically moving a rotating blade in axial direction
US2588591A (en) * 1946-02-02 1952-03-11 Automatic Canteen Company Mixing device
US2651343A (en) * 1951-11-10 1953-09-08 Mary M Alexander Automatic salad chopper and mixer
US3044750A (en) * 1960-04-08 1962-07-17 Shar Dispersion Equipment Co I Impeller
US3106947A (en) * 1961-08-18 1963-10-15 Lewis J Logan Material feeding apparatus
FR1364669A (fr) * 1963-05-10 1964-06-26 Mélangeur-frotteur, notamment pour sables de fonderie
DE1284946B (de) * 1964-05-30 1968-12-12 Karl Haegele Dipl Ing Trog- oder Tellermischer
US3638917A (en) * 1969-06-18 1972-02-01 James C Osten Method and apparatus for continuously dispersing materials
GB1369445A (en) * 1971-03-29 1974-10-09 Baker Perkins Ltd Method and apparatus for preparing foundry moulds and cores
DE2233089C3 (de) * 1972-06-30 1981-02-12 Nihon Senshoku Kikai K.K., Ama, Aichi (Japan) Vorrichtung zum Rühren einer Flüssigkeit
DE2248394A1 (de) * 1972-10-03 1974-04-11 Elba Werk Maschinen Gmbh & Co Feststoff- und fluessigkeitsmischer
GB1369447A (en) * 1972-11-30 1974-10-09 Baker Perkins Ltd Mixing chamber
CH581496A5 (da) * 1974-08-16 1976-11-15 Fischer Ag Georg
US4169681A (en) * 1974-11-06 1979-10-02 Nihon Senshoku Kikai Kabushiki Kaisha Liquid stirring apparatus
US4159028A (en) * 1977-03-28 1979-06-26 Almay, Inc. Method of forming and containerizing a multiphase cosmetic composition
DE2925232A1 (de) * 1979-06-22 1981-01-08 Haagen & Rinau Vorrichtung zum anpressen von abstreifern
DD154430A3 (de) * 1980-02-14 1982-03-24 Helmut Crucius Formmaschine
CH648234A5 (de) * 1980-09-26 1985-03-15 Mirabed Ag Einrichtung zur diskontinuierlichen herstellung von schaumstoffkoerpern.
US4653408A (en) * 1984-09-05 1987-03-31 Citizen Watch Co., Ltd. Table mechanism for controlling table attitude
DE3519713A1 (de) * 1985-06-01 1986-12-04 Paul Prof. Dr.-Ing. 4300 Essen Schmidt Mischer

Also Published As

Publication number Publication date
DE3616894A1 (de) 1987-11-26
ES2022164B3 (es) 1991-12-01
DE3616894C2 (da) 1989-03-09
US4798471A (en) 1989-01-17
ATE62433T1 (de) 1991-04-15
EP0246394A2 (de) 1987-11-25
EP0246394A3 (en) 1988-10-05
DE3769200D1 (de) 1991-05-16

Similar Documents

Publication Publication Date Title
DE2337129C3 (de) Vorrichtung zum Bereiten und Abgeben von Faser-Beton-Gemischen
EP0196291B1 (de) Mischvorrichtung
DE10206139A1 (de) Abnehmbare Materialtrichterbaugruppe und Verfahren zu ihrem Gebrauch zum Ausschluß von Restmaterial
EP0246394B1 (de) Vorrichtung zum Mischen von Sand für Giessereiformen oder Kerne
DE1504699B1 (de) Vorrichtung zum Mischen und Austragen von Stoffen fuer die Herstellung von Polyurethanschaum
DE2628390C2 (de) Verfahren und Vorrichtung zum Herstellen eines oder mehrerer hohler Sandkerne für Gießformen
DE2413357C2 (de) Mischvorrichtung zum Herstellen von Mehrkomponenten-Kunststoffen
DE1966541C3 (de) Anlage zur Verarbeitung von Gießharz
DE4314941C2 (de) Spritzeinheit an Spritzgießmaschinen zur Herstellung thermoplastischer Kunststoffteile
DE2236200A1 (de) Giessereimaschine zum mischen einer formmaterialkomponente und eines bindemittels
BE1021676B1 (nl) Baustein-fertigungsanlage mit rührmitteln, die sich in bewegungsrichtung eines ladetroges ertreckende rotationsachsen aufweisen
EP0259567B1 (de) Dosiergerät zum Dosieren von Zuschlagstoffen
DE4217585C2 (de) Verfahren zum Füllen einer Form mit einem Steinmaterialgemisch zur Herstellung einer Platte aus diesem Material und Vorrichtung zur Durchführung des Verfahrens
DE2457078A1 (de) Zur verteilung von farbstoffen oder anderen additiven dienender verteiler fuer extruder, injektionspressen und aehnliche maschinen
EP4015174A1 (de) Vorrichtung zum austragen eines fliessfähigen giessmaterials
AT390756B (de) Vorrichtung zur herstellung von schichten bestimmter staerke aus einer betonmischung in einerschalung
DE3010694A1 (de) Formmaschine
DE1966542A1 (de) Anlage zur giessharzverarbeitung
DE2817687A1 (de) Mischvorrichtung fuer mehrkomponentenkunststoffe, insbesondere polyurethan
EP0845339A1 (de) Innenmischer zur Verarbeitung von Kautschuk- oder von kautschukähnlichen Kunststoffmischungen und Verfahren zum Mischen einer Kautschuk- oder kautschukähnlichen Kunststoffmischung im Innenmischer
DE19649493C1 (de) Innenmischer zur Verarbeitung von Kautschuk- oder kautschukähnlichen Kunststoffmischungen
DE2523374A1 (de) Vorrichtung zur kontinuierlichen herstellung von angemachtem moertel
DE1182572B (de) Fuellvorrichtung an Pressen zur Herstellung mehrfarbiger keramischer Platten, wie sogenannter geflammter Fliesen od. dgl.
DE1183001B (de) Vorrichtung zum Beschicken der Formen von Plattenpressen od. dgl.
DE1035889B (de) Diskontinuierlich arbeitende Misch- und Knetvorrichtung fuer Kautschuk- und Kunststoffmassen

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT BE CH DE ES FR GB GR IT LI NL SE

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT BE CH DE ES FR GB GR IT LI NL SE

17P Request for examination filed

Effective date: 19881109

17Q First examination report despatched

Effective date: 19890529

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE CH DE ES FR GB GR IT LI NL SE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 19910410

REF Corresponds to:

Ref document number: 62433

Country of ref document: AT

Date of ref document: 19910415

Kind code of ref document: T

ITF It: translation for a ep patent filed

Owner name: ING. ZINI MARANESI & C. S.R.L.

REF Corresponds to:

Ref document number: 3769200

Country of ref document: DE

Date of ref document: 19910516

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)
ET Fr: translation filed
PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

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

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
EAL Se: european patent in force in sweden

Ref document number: 87101231.6

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NL

Payment date: 19990131

Year of fee payment: 13

Ref country code: AT

Payment date: 19990131

Year of fee payment: 13

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 19990201

Year of fee payment: 13

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: BE

Payment date: 19990407

Year of fee payment: 13

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20000129

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20000131

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20000131

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20000131

BERE Be: lapsed

Owner name: LAEMPE JOACHIM

Effective date: 20000131

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20000801

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

NLV4 Nl: lapsed or anulled due to non-payment of the annual fee

Effective date: 20000801

REG Reference to a national code

Ref country code: GB

Ref legal event code: IF02

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: ES

Payment date: 20021223

Year of fee payment: 17

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20021227

Year of fee payment: 17

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20030102

Year of fee payment: 17

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SE

Payment date: 20030110

Year of fee payment: 17

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20030122

Year of fee payment: 17

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20040129

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20040130

Ref country code: ES

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20040130

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20040803

EUG Se: european patent has lapsed
GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20040129

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20040930

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20050129

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20040130