EP0950450B1 - Stützvorrichtung für Sandgiessformen - Google Patents
Stützvorrichtung für Sandgiessformen Download PDFInfo
- Publication number
- EP0950450B1 EP0950450B1 EP97122596A EP97122596A EP0950450B1 EP 0950450 B1 EP0950450 B1 EP 0950450B1 EP 97122596 A EP97122596 A EP 97122596A EP 97122596 A EP97122596 A EP 97122596A EP 0950450 B1 EP0950450 B1 EP 0950450B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- mold
- arm
- supporting plate
- support plate
- casting
- 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
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C21/00—Flasks; Accessories therefor
- B22C21/08—Clamping equipment
Definitions
- the invention relates to a support device for support of the molding sand from a standing, a molding box frame having casting mold with at least one the outside of the mold attachable support plate, which Relative to the mold can be determined.
- Casting molds which are often used in foundries, exist usually from a mold frame, which is a Takes up sand mold.
- the mold is usually divided into two, the two mold halves lying or standing can be poured off. Can during the casting depending on the height of the form considerable metallostatic Pressures occur. One encounters these pressures in that the two mold halves are screwed together or bracketed, so that this under the influence of the metallostatic pressure is not expressed can be. However, it always exists there is still the danger that the molding sand in the casting mold will diverge is pressed. If molds are cast in a lying position, so you counter these dangers by the fact that plates during the casting and solidification of the casting to be placed on the mold.
- the invention has for its object a support device of the type mentioned in such a way that this is inexpensive to manufacture, with a low one time can be attached to the mold and is again solvable and which also allows using an automatic device on the molds to be attached and removed.
- Support plate on both ends with at least one Arm is provided, which is firmly connected to the support plate is that the arm with a pointing towards the support plate Contact surface is provided at an acute angle to Support plate runs and this is facing, and that the Contact surface of the arm to interact with on the side surface the mold or mold half arranged Shock pin is adjusted.
- a support device designed according to the invention exists thus from a plate on which an arm is attached, the is provided with a contact surface which is in a pointed The angle to the plate runs. This is advantageous Angle below the friction angle, so that when pouring metallostatic forces acting on the plate does not lead to a loosening of the same.
- the distance from the contact surface of the arm to the support plate is chosen so that when the support device is lowered this contact surface behind one on the outside of the mold arranged bolt engages.
- the support plate slides along the casting mold until it is full the sand outer surface of the mold. The sand forces transferred to the support plate during casting thus directly over the arm and its contact surface initiated in the push pin of the mold, so that a divergence the mold is safely prevented.
- the ones required to attach the support Push pins on the side surfaces of the mold can either additionally be attached to this or it is also quite possible to use the push bolts that the Has mold anyway and over the neighboring molds abut each other on the transport track. It is here just make sure that the length of these push pins is sufficient to ensure that the contact surfaces are held securely the arms of the support plates are guaranteed on these. Of the The distance between the arms is slightly larger than the distance the side surface of the mold frame chosen so that the arms when lowering the support device without major Friction on the shock bolts can be reduced.
- the support device advantageously provides each side of the support plate and in the area of the front end of the arm each have a receiving device, which in simplest case can consist of a bolt.
- a receiving device which in simplest case can consist of a bolt.
- the gripper arms are pivotally arranged on the device, so that after the deposition by pivoting the gripping arms of the Support device can be solved.
- Fig. 1 shows a mold 1 in side view, which consists of two Casting mold halves 2, 3 exist. The two mold halves are clamped together with a hook 4. How from 2 shows the inside of the mold with sand 15 filled out, which is a casting cavity for a casting 14 forms.
- the casting mold 1 is placed on a carriage 5, which is arranged to be movable on a standing track 6.
- Each mold half 2, 3 has push pins 7 on each side surface on which when transporting the molds 1 on the standing track 6 lie against each other.
- a support device 8 which a support plate 9, which is on its two end faces is each provided with an arm 10 which is in the extends substantially perpendicular to the support plate.
- Arm 10 is formed a contact surface 11 which in one acute angle to the support plate 9 runs. The distance the contact surface 11 to the contact surface of the support plate 9 chosen so that the contact surface when lowering the support device, as shown in Fig. 3, behind the Shock pin 7 engages. Due to the weight of the support device 8 lowers it until the Support plate 9 fits snugly on the outside of the mold 1.
- the inclination of the contact surface 11 relative to the support plate 9 is designed so that here the friction angle is advantageously fallen short of, so that a load the support plate 9 by the metallostatic casting pressure these were not shifted upwards against their own weight can be.
- Support device 8 and molding box 2, 3 are thus firmly clamped together so that the occurring metallostatic pressure safely from the support plate is recorded without causing the sand to shift 15 the mold comes.
- the transport and lifting device 17 consists of a carriage 18, which is movable on rails 19.
- a lifting cylinder 20 is connected to the carriage 18 and engages its piston rod 21 on a support plate 22 on which the gripping device 16 is attached.
- This gripping device 16 consists of two each around an articulation point 23 pivotable lever 24, which at its lower end in two gripper arms 25, 26 is divided. Each gripper arm points at its lower end a hook 27, 28, which a Inclined bevels for receiving the locating bolts 12, 13 of the support device 8.
- a hydraulic cylinder 30 which serves the to pivot two levers 24 against each other and so after the deposition of the support device 8 on the casting mold 1 itself to solve by support device or after that Pour the support device 8 can resume.
- Fig. 3 shows the attachment passage of the support device 8, which has not yet reached its end position has, as shown in Fig. 1.
- Fig. 4 shows that Removal of the support device 8 after solidification the casting 14.
- the support plate 9 does not have to be formed over the entire surface. It is also quite sufficient if these recesses has, it being ensured that the distance of the Contact areas between the recesses are not so large there is a fear that the sand will shift.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Casting Devices For Molds (AREA)
- Paper (AREA)
Abstract
Description
- Fig. 1
- eine Seitenansicht einer Gießform mit einer erfindungsgemäßen Stützvorrichtung,
- Fig. 2
- einen Horizontalschnitt durch die Gießform nach Fig. 1,
- Fig. 3
- die auf einer Transportbahn aufgesetzte Gießform mit einer Vorrichtung zum automatischen Anbringen der Stützvorrichtung und
- Fig. 4
- die gleiche Ansicht wie in Fig. 3, jedoch nach vollendetem Abguß und Erstarren des Gußstückes und mit bereits abgehobener Stützvorrichtung.
Claims (5)
- Stützvorrichtung zur Abstützung des Formsandes (15) von einer stehend angeordneten, einen Formkastenrahmen (2, 3) aufweisenden Gießform (1) mit mindestens einer auf der Außenseite der Gießform (1) befestigbaren Stützplatte (9), welche relativ zur Gießform (1) festgelegt ist,
dadurch gekennzeichnet, daß
die Stützplatte (9) an ihren beiden Stirnseiten mit mindestens je einem Arm (10) versehen ist, der fest mit der Stützplatte (9) verbunden ist, daß der Arm (10) mit einer zur Stützplatte (9) hinweisenden Anlagefläche (11) versehen ist, die in einem spitzen Winkel zur Stützplatte (9) verläuft und dieser zugewandt ist und daß die Anlagefläche (11) des Armes (10) zum Zusammenwirken mit an den Seitenflächen der Gießform angeordneten Stoßbolzen angepaßt ist. - Stützvorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß der spitze Winkel zwischen Anlagefläche (11) des Armes (10) und der Stützplatte (9) kleiner oder gleich dem Reibungswinkel ist.
- Stützvorrichtung nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß an der Stützplatte (9) und/oder am Arm (10) Mittel (12, 13) für den Angriff einer Transport- und Hubeinrichtung (17) vorgesehen sind.
- Stützvorrichtung nach Anspruch 3, dadurch gekennzeichnet, daß die Mittel in Form von Aufnahmebolzen (12, 13) ausgebildet sind.
- Stützvorrichtung nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß die Stützplatte (9) Ausnehmungen aufweist.
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ES97122596T ES2140180T3 (es) | 1997-12-20 | 1997-12-20 | Dispositivo de asiento para moldes de colada en arena. |
DE59700769T DE59700769D1 (de) | 1997-12-20 | 1997-12-20 | Stützvorrichtung für Sandgiessformen |
EP97122596A EP0950450B1 (de) | 1997-12-20 | 1997-12-20 | Stützvorrichtung für Sandgiessformen |
AT97122596T ATE186861T1 (de) | 1997-12-20 | 1997-12-20 | Stützvorrichtung für sandgiessformen |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP97122596A EP0950450B1 (de) | 1997-12-20 | 1997-12-20 | Stützvorrichtung für Sandgiessformen |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0950450A1 EP0950450A1 (de) | 1999-10-20 |
EP0950450B1 true EP0950450B1 (de) | 1999-11-24 |
Family
ID=8227848
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP97122596A Expired - Lifetime EP0950450B1 (de) | 1997-12-20 | 1997-12-20 | Stützvorrichtung für Sandgiessformen |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP0950450B1 (de) |
AT (1) | ATE186861T1 (de) |
DE (1) | DE59700769D1 (de) |
ES (1) | ES2140180T3 (de) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104226931A (zh) * | 2014-09-24 | 2014-12-24 | 赵新春 | 铸造砂箱 |
CN107498005A (zh) * | 2017-06-27 | 2017-12-22 | 益阳紫荆福利铸业有限公司 | 一种铸造沙箱夹紧装置 |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB815859A (en) * | 1956-04-25 | 1959-07-01 | Tiroler Roehren & Metallwerk | Device for clamping flask sections together in foundry plants |
-
1997
- 1997-12-20 EP EP97122596A patent/EP0950450B1/de not_active Expired - Lifetime
- 1997-12-20 DE DE59700769T patent/DE59700769D1/de not_active Expired - Fee Related
- 1997-12-20 AT AT97122596T patent/ATE186861T1/de not_active IP Right Cessation
- 1997-12-20 ES ES97122596T patent/ES2140180T3/es not_active Expired - Lifetime
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104226931A (zh) * | 2014-09-24 | 2014-12-24 | 赵新春 | 铸造砂箱 |
CN107498005A (zh) * | 2017-06-27 | 2017-12-22 | 益阳紫荆福利铸业有限公司 | 一种铸造沙箱夹紧装置 |
CN107498005B (zh) * | 2017-06-27 | 2019-10-11 | 益阳紫荆福利铸业有限公司 | 一种铸造沙箱夹紧装置 |
Also Published As
Publication number | Publication date |
---|---|
EP0950450A1 (de) | 1999-10-20 |
DE59700769D1 (de) | 1999-12-30 |
ES2140180T3 (es) | 2000-02-16 |
ATE186861T1 (de) | 1999-12-15 |
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