EP0732977A1 - Vorrichtung zum schiessen von giessereikernen oder -formen - Google Patents
Vorrichtung zum schiessen von giessereikernen oder -formenInfo
- Publication number
- EP0732977A1 EP0732977A1 EP94917561A EP94917561A EP0732977A1 EP 0732977 A1 EP0732977 A1 EP 0732977A1 EP 94917561 A EP94917561 A EP 94917561A EP 94917561 A EP94917561 A EP 94917561A EP 0732977 A1 EP0732977 A1 EP 0732977A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- tool
- shooting
- change frame
- tool part
- cores
- 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.)
- Granted
Links
- 238000010304 firing Methods 0.000 claims description 8
- 238000004140 cleaning Methods 0.000 claims description 4
- 238000003825 pressing Methods 0.000 claims description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 4
- 239000004576 sand Substances 0.000 description 3
- 238000005266 casting Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000006004 Quartz sand Substances 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 230000003028 elevating effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000012778 molding material Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C11/00—Moulding machines characterised by the relative arrangement of the parts of same
- B22C11/02—Machines in which the moulds are moved during a cycle of successive operations
- B22C11/04—Machines in which the moulds are moved during a cycle of successive operations by a horizontal rotary table or carrier
Definitions
- the invention relates to a device for firing foundry cores or molds, with a firing device, a tool set having an upper tool part and a lower tool part and a tool changer device having two tool change frames, which can be pivoted about a vertical axis, each of the pivoting frames alternately into the shooter ⁇ direction in or out of the shooting device is pivotable.
- Core shooters have been known in foundry technology for many years. To cast molded parts, the casting cores or molds are usually produced in separate parts, brought together and connected to one another to form a casting mold. An essential part of the core shooters are the so-called shot heads with the shot plates carrying the shot nozzles. Molding material, in particular core sand, i.e. Quartz sand which has already been mixed or coated with binder is poured into the shot heads in question and from there it is blown or shot into the respective molds at very high air pressure through the nozzles arranged in the shot plate.
- core sand i.e. Quartz sand which has already been mixed or coated with binder
- a generic device for firing foundry cores or molds is known, a tool changing device with two tool changing frames being pivotable about a vertical axis also being provided there.
- the tool changing device provided there serves to change the entire tool set, ie to change both the upper part of the tool and the lower part of the tool. Shot cores must be ejected or removed before the tool change.
- the known device for shooting foundry cores or molds is not suitable. In front everything can be achieved with the known device with manual handling of any lot parts together with the manufactured cores only an unsatisfactory throughput.
- the invention is therefore based on the object of designing and developing a device of the type mentioned at the outset such that optimum use or utilization can be achieved even when combining shot cores with, for example, manually inserted loose parts.
- the device according to the invention achieves the above object by the features of patent claim 1.
- the device mentioned at the outset is designed in such a way that the tool change frame pivoted into the firing device serves to accommodate the lower tool part carrying the cores and that the lower tool part carrying the cores the shooting device and at the same time the other tool change frame can be pivoted into the shooting device with a preferably cleaned lower tool part.
- the tool changing device known per se can be used in an ideal manner to match cycle times within the core shooting device to corresponding processing times outside the core shooting device, the tool changing frame pivoted into the shooting device only for receiving of the lower part of the tool carrying the cores. It is now essential that the tool lower part carrying the cores can be pivoted out of the shooting device by means of the tool device and, at the same time, the other tool change frame with a preferably cleaned lower tool part can be pivoted into the shooting device.
- the tool changing frames are arranged on arms that extend diametrically opposite one another on both sides of the axis of rotation. These arms could face each other exactly, i.e. cursed with each other.
- An angled arrangement of the arms and thus the tool change frame is also conceivable.
- the spatial arrangement of the shooting device on the one hand and the cleaning station for the lower tool part on the other hand must be taken into account.
- the tool change frames are constructed in such a way that they at least partially engage under the lower tool part, i.e. to carry in and out.
- the lower tool part could have special support means, which are designed, for example, in the form of support pins or support pins. These support pins could be formed on two opposite sides of the lower tool part, so that the lower tool part is placed on or removed from the tool change frame.
- this could be pivoted through a total of 180 °, in which case a back and forth pivoting would have to take place.
- the tool change frame could also be moved horizontally overall, so that the lower tool parts can also be raised and lowered at the same time. In the simplest embodiment, however, the tool changing frame would only be pivotable in a predetermined horizontal plane.
- the tool change frame can be positioned in a shooting device by means of a first lifting table which serves to raise the lower part of the tool or to press it against the upper part of the tool arranged above and lower the lower part of the tool.
- a first lifting table which serves to raise the lower part of the tool or to press it against the upper part of the tool arranged above and lower the lower part of the tool.
- the lower part of the tool could be pivoted into the shooting device, where it could be gripped by an elevating lifting table and lifted off the changing tool frame.
- the tool change frame could remain in its position because the lifting table can act through or extend through between the frame legs.
- the tool changing device or the swiveling tool changing frame can be positioned outside the shooting device via a second lifting table, which can be a further work station - outside the shooting device.
- Both tool change frames could be arranged in a further advantageous manner in such a way that they can be positioned simultaneously over the two lifting tables, so that work can be carried out on both lifting tables at the same time.
- the second lifting table located outside the core shooting device advantageously has an ejection device for ejecting the cores from the swiveled-out tool base. part on.
- This ejection device works between the legs of the tool change frame and is therefore in no way hindered by any equipment.
- a device for cleaning the lower tool part could be provided in the area of the second lifting table or even associated with the lifting table.
- Corresponding manipulators could easily be provided, for example, above the second lifting table, and any lot parts could also be handled using manipulators.
- the cycle time in the shooting device corresponds at least largely to the processing time on the second lifting table outside the shooting device. In contrast to a removal in the area of the shooting device, a double production quantity could thus be achieved.
- the shooting device 1 has as essential components a shooting head 2 with a firing plate 4 carrying firing nozzles 3 with filling funnels 5 arranged above it.
- the core sand is shot into a two-part tool, this one Has upper tool part 6 and a lower tool part 7.
- a tool changing device 8 comprises two tool changing frames 9, which are pivotable about a vertical axis 10. Each of the tool change frames 9 can be swiveled alternately into the shooting device 1 or out of the swivel device 1.
- the tool change frame 9 pivoted into the shooting device 1 serves to collectively hold the lower tool part 7 carrying the cores 11.
- the lower tool part 7 carrying the cores 11 is out of the shooting device 1 and at the same time the other tool changing frame 9 with a preferably cleaned lower tool part 7 in the shooting device 1 can be pivoted into it. Consequently, the two tool change frames 9 swivel in and out at the same time.
- the single figure further shows that the tool change frame 9 are arranged on both sides of the axis of rotation 10 extending, diametrically opposite arms 12. Furthermore, it can be seen that the tool change frames 9 partially grip under the lower tool part 7, namely under the support pins 13 used to place the tool change frames 9. These receiving pins 13 are formed on two opposite sides of the lower tool part 7. Only one side can be seen here.
- the tool changing device 8 in the embodiment selected here can be pivoted through 180 °, specifically in a horizontal plane.
- the tool change frame 9 in the shooting device 1 has a for lifting the lower tool part 7 and for pressing against the upper tool part 6 arranged above it for lowering the lower tool part 7 serving first lifting table 14 can be positioned.
- This lifting table 14 is equipped with a suction device.
- the tool change frame 9 can be positioned outside the shooting device 1 above a second lifting table 15.
- both tool change frames 9 are arranged with respect to one another in such a way that they can be positioned over the two lifting tables 14, 15 at the same time or are arranged in the position there.
- the second lifting table 15 forms a further processing station, namely has an ejection device for ejecting the cores 11 from the lower tool part 7. Furthermore, in the area of the second lifting table 15, a device (not shown in the single figure) for cleaning the lower tool part 7 is provided.
- the cycle time in the shooting device 1 corresponds to the processing time on the second lifting table 15 - outside the shooting device 1 - so that the production of the cores 11 is optimally designed.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Casting Devices For Molds (AREA)
- Molds, Cores, And Manufacturing Methods Thereof (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE4342364 | 1993-12-11 | ||
DE4342364A DE4342364C1 (de) | 1993-12-11 | 1993-12-11 | Vorrichtung zum Schießen von Gießereikernen oder -formen |
PCT/DE1994/000690 WO1995015826A1 (de) | 1993-12-11 | 1994-06-17 | Vorrichtung zum schiessen von giessereikernen oder -formen |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0732977A1 true EP0732977A1 (de) | 1996-09-25 |
EP0732977B1 EP0732977B1 (de) | 1997-10-01 |
Family
ID=6504810
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP94917561A Expired - Lifetime EP0732977B1 (de) | 1993-12-11 | 1994-06-17 | Vorrichtung zum schiessen von giessereikernen oder -formen |
Country Status (5)
Country | Link |
---|---|
US (1) | US5701946A (de) |
EP (1) | EP0732977B1 (de) |
DE (2) | DE4342364C1 (de) |
ES (1) | ES2108461T3 (de) |
WO (1) | WO1995015826A1 (de) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4434798A1 (de) * | 1993-10-14 | 1995-05-11 | Georg Fischer Giesereianlagen | Kern- und Maskenschiessmaschine |
ID30333A (id) * | 2000-02-17 | 2001-11-22 | Sintokogio Ltd | Peralatan dan metode pemasukan pasir cetakan |
CN104117637B (zh) * | 2014-08-19 | 2016-04-13 | 苏州明志科技有限公司 | 一种上压型制芯机射砂机构的压头装置 |
CN104525875A (zh) * | 2014-12-23 | 2015-04-22 | 河北欧耐机械模具有限公司 | 伺服控制高速多工位制芯机 |
CN109226663B (zh) * | 2018-11-28 | 2020-12-04 | 韶关市新世科壳型铸造有限公司 | 一种利用高流动性高熔点覆膜砂制作大型壳型壳芯的方法 |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH320426A (de) * | 1952-07-21 | 1957-03-31 | Buderus Eisenwerk | Einrichtung zur Herstellung von Giesssandformen |
IT1111713B (it) * | 1979-03-12 | 1986-01-13 | Hansberg Julius | Foramtrice a sparo e compressione in staffe |
DE3422687C1 (de) * | 1984-06-19 | 1985-06-13 | Adolf Hottinger, Gießerei und Maschinenbau GmbH, 6800 Mannheim | Kern- und Maskenschiessmaschine |
CH666426A5 (de) * | 1984-06-25 | 1988-07-29 | Fischer Ag Georg | Formanlage. |
DE8817084U1 (de) * | 1988-02-06 | 1992-08-13 | Heinrich Wagner Sinto Maschinenfabrik GmbH, 5928 Bad Laasphe | Formmaschine |
DE8817014U1 (de) * | 1988-09-07 | 1991-11-21 | Heinrich Wagner Sinto Maschinenfabrik GmbH, 5928 Bad Laasphe | Formmaschine |
ES2011685A6 (es) * | 1988-10-21 | 1990-02-01 | Lopez Foronda Fernandez Vicent | Mejoras introducidas en maquinas de moldeo por impacto de aire. |
-
1993
- 1993-12-11 DE DE4342364A patent/DE4342364C1/de not_active Expired - Fee Related
-
1994
- 1994-06-17 EP EP94917561A patent/EP0732977B1/de not_active Expired - Lifetime
- 1994-06-17 DE DE59404234T patent/DE59404234D1/de not_active Expired - Fee Related
- 1994-06-17 WO PCT/DE1994/000690 patent/WO1995015826A1/de active IP Right Grant
- 1994-06-17 US US08/656,233 patent/US5701946A/en not_active Expired - Fee Related
- 1994-06-17 ES ES94917561T patent/ES2108461T3/es not_active Expired - Lifetime
Non-Patent Citations (5)
Title |
---|
CH-C- 320 426 * |
DE-C- 3 422 687 * |
EP-A- 0 327 825 * |
EP-A- 0 357 871 * |
See also references of WO9515826A1 * |
Also Published As
Publication number | Publication date |
---|---|
EP0732977B1 (de) | 1997-10-01 |
WO1995015826A1 (de) | 1995-06-15 |
DE59404234D1 (de) | 1997-11-06 |
ES2108461T3 (es) | 1997-12-16 |
US5701946A (en) | 1997-12-30 |
DE4342364C1 (de) | 1994-10-13 |
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