CN110303144B - Casting method and device for sand-lined iron mold casting - Google Patents
Casting method and device for sand-lined iron mold casting Download PDFInfo
- Publication number
- CN110303144B CN110303144B CN201910720835.7A CN201910720835A CN110303144B CN 110303144 B CN110303144 B CN 110303144B CN 201910720835 A CN201910720835 A CN 201910720835A CN 110303144 B CN110303144 B CN 110303144B
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- riser
- mold
- iron
- casting
- sand
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- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 title claims abstract description 243
- 229910052742 iron Inorganic materials 0.000 title claims abstract description 99
- 238000005266 casting Methods 0.000 title claims abstract description 92
- 238000000034 method Methods 0.000 title claims abstract description 25
- 239000004576 sand Substances 0.000 claims abstract description 58
- 230000007246 mechanism Effects 0.000 claims abstract description 48
- 239000011247 coating layer Substances 0.000 claims abstract description 12
- 238000001816 cooling Methods 0.000 claims abstract description 5
- 238000003780 insertion Methods 0.000 claims description 9
- 230000037431 insertion Effects 0.000 claims description 9
- 230000009471 action Effects 0.000 claims description 4
- 238000007599 discharging Methods 0.000 claims description 4
- 239000010410 layer Substances 0.000 claims description 3
- 239000002184 metal Substances 0.000 abstract description 20
- 229910052751 metal Inorganic materials 0.000 abstract description 20
- 238000004519 manufacturing process Methods 0.000 abstract description 11
- 230000008569 process Effects 0.000 abstract description 10
- 238000000926 separation method Methods 0.000 abstract description 6
- 230000000670 limiting effect Effects 0.000 description 5
- 229910001141 Ductile iron Inorganic materials 0.000 description 2
- 238000007711 solidification Methods 0.000 description 2
- 230000008023 solidification Effects 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000005087 graphitization Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/08—Features with respect to supply of molten metal, e.g. ingates, circular gates, skim gates
- B22C9/088—Feeder heads
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D29/00—Removing castings from moulds, not restricted to casting processes covered by a single main group; Removing cores; Handling ingots
- B22D29/02—Vibratory apparatus specially designed for shaking out flasks
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D33/00—Equipment for handling moulds
- B22D33/04—Bringing together or separating moulds
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Casting Devices For Molds (AREA)
Abstract
The invention discloses a casting method and a casting device for sand-lined metal mold casting, comprising the following steps of; s1: before casting, combining an upper iron mold and a lower iron mold with sand coating layers, then placing a riser sand mold on the upper iron mold, and sleeving a lock catch type riser iron ring on the periphery of the riser sand mold; s2: after pouring and cooling, conveying the whole set of iron shapes to the lower part of the unpacking mechanism by a roller way system, and lifting the upper iron shapes by the unpacking mechanism; s3: placing the lifted upper iron mold on a vibration mechanism through a box opening mechanism, and then unwinding and taking down the lock catch type riser iron ring; s4: and (3) vibrating and separating, and starting a vibrating mechanism to perform jarring on the upper iron mold. The invention not only avoids the separation of the casting and the iron mold in the process of conveying or overturning the iron mold on the production line, but also ensures that the casting is connected with the upper iron mold after the box is opened, thereby being convenient for vibrating the upper iron mold and having the characteristics of strong reliability and strong operability.
Description
Technical Field
The invention relates to the technical field of sand lined metal mold casting, in particular to a casting method and a casting device for sand lined metal mold casting.
Background
The casting mould is formed by coating a thin layer of precoated sand on the inner cavity of the metal mould, so that the casting mould has good rigidity, is very advantageous in the production of ductile iron castings, can fully exert the graphitization expansion self-feeding characteristic of ductile iron, and has compact structure and stable size. In recent years, with the economic development and the improvement of the living standard of people, the problems of difficult labor investment, high labor cost and the like are the problems faced by casting enterprises, so the requirement on the mechanization level of the sand-lined iron mold casting production is also higher. Because of the particularity of the sand lined iron mold casting process, various problems are encountered in the mechanized production and development process, the mechanization degree is higher at present, but the problem of casting is always a bottleneck, and the reason is that: 1. after pouring solidification, the casting is locked on the iron mold due to solidification, cooling and shrinkage of molten iron, and according to the shape and pouring process of the casting, the casting is different in the upper iron mold or the lower iron mold due to different casting and different process, and the casting cannot be separated from the iron mold by grabbing through a hydraulic ram and a mechanical arm after the casting is locked through production and experiments; 2. the iron mold has slight vibration in the process of conveying or overturning on a production line, when the casting is 'embraced' on the iron mold, the iron mold is possibly separated from the casting at any time due to the weight action of the casting and a pouring system and the loosening of sand covered with sand, and in the normal production process, the temperature of the casting and the pouring system is very high, generally about 600 ℃ or even higher, and the treatment of the dropped casting is also very difficult.
Disclosure of Invention
The invention aims to provide a casting method and a casting device for sand-lined metal mold casting. The invention not only avoids the separation of the casting and the iron mold in the process of conveying or overturning the iron mold on the production line, but also ensures that the casting is connected with the upper iron mold after the box is opened, thereby being convenient for vibrating the upper iron mold; in addition, the invention has the characteristics of strong reliability and strong operability.
The technical scheme of the invention is as follows: a casting method for sand lined metal mold casting comprises the following steps:
s1: before casting, combining an upper iron mold and a lower iron mold with sand coating layers, then placing a riser sand mold on the upper iron mold, sleeving a lock catch type riser iron ring on the periphery of the riser sand mold, and fixing a riser formed in the riser sand mold after casting by using the lock catch type riser iron ring;
s2: after pouring and cooling, conveying the whole set of iron molds to the lower part of a box opening mechanism by a roller way system, and lifting the upper iron molds by the box opening mechanism, wherein a lock catch type riser iron ring clamps a riser of a riser sand mold so as to be connected with the pouring system and a casting together on the upper iron molds;
s3: placing the lifted upper iron mold on a vibration mechanism through a box opening mechanism, and then unwinding and taking down the lock catch type riser iron ring;
s4: and (3) vibrating and separating, starting a vibrating mechanism to perform jarring on the upper iron mold, and falling castings, risers and sand coating layers below the vibrating mechanism under the action of the jarring, so that the work of discharging the castings is completed.
In the casting method for sand-lined metal mold casting, the minimum inner diameter of the lock catch type riser iron ring is smaller than the maximum outer diameter of the riser, and the maximum outer diameter of the riser is smaller than the minimum outer diameter of the upper opening of the upper metal mold.
In the casting method for sand-lined metal mold casting, the telescopic mechanism is arranged on the conveying roller way, and when the box is opened, the telescopic mechanism stretches out and is blocked above the edge of the lower metal mold, so that the lower metal mold is prevented from being lifted in the box opening process.
The casting device for sand-lined iron mold casting comprises a roller way system for conveying iron molds, wherein a telescopic mechanism is arranged on the roller way system and is connected with a vibration mechanism through a box opening mechanism;
the iron mold comprises an upper iron mold and a lower iron mold which are matched with each other and provided with a sand coating layer, an upper opening is formed in the upper iron mold, a riser sand mold communicated with the upper opening is arranged at the top of the upper iron mold, and a lock catch type riser iron ring is arranged at the outer side of the riser sand mold; the locking riser iron ring is used for clamping and fixing a riser formed in the cast riser sand mould.
In the casting device for sand-lined metal mold casting, the locking riser iron ring consists of two half circles, one ends of the two half circles are rotationally connected through the rotating pin, corresponding insertion holes are formed in the other ends of the two half circles, and the insertion pins are inserted into the insertion holes.
In the casting device for sand-lined iron mold casting, the riser sand mold is of an inverted cone structure with the inner diameter being wider at the upper part and narrower at the lower part.
In the casting device for sand-lined metal mold casting, the inner contour of the lock catch type riser iron ring is matched with the outer contour of the riser sand mold.
In the casting device for sand-lined metal mold casting, the vibration mechanism comprises a base, a hollow vibration frame is arranged above the base, a plurality of springs are arranged between the vibration frame and the base, and a vibration motor is arranged on the vibration frame.
In the casting device for sand-lined metal mold casting, the vibration frame is matched with the upper metal mold, and the vibration frame is provided with the metal mold limiting block.
Compared with the prior art, the invention has the following advantages:
1. the minimum inner diameter of the lock catch type riser iron ring is smaller than the maximum outer diameter of the riser, the maximum outer diameter of the riser is smaller than the minimum outer diameter of the upper opening of the upper iron type, the minimum inner diameter of the lock catch type riser iron ring is smaller than the maximum outer diameter of the riser, the limit effect is achieved on the riser, even slight vibration is produced in the conveying or overturning process on a production line, the riser and the lock catch type riser iron ring cannot be separated, and the casting falling phenomenon is effectively avoided; the maximum outer diameter of the riser is smaller than the minimum outer diameter of the upper opening of the upper iron mold, so that the riser can conveniently pass through the upper opening of the upper iron mold during vibration separation, and separation work of castings is realized.
2. The lock catch type riser iron ring is composed of the two half circles, one ends of the two half circles are rotationally connected through the rotating pin, the other ends of the two half circles are provided with the corresponding insertion holes, the insertion holes are inserted with bolts, and the lock catch type riser iron ring is formed by rotationally combining the two half circles and has the characteristics of being simple in structure and convenient to install and detach.
Drawings
FIG. 1 is a schematic structural view of a box opening mechanism;
FIG. 2 is a schematic structural view of a vibration mechanism;
FIG. 3 is a top view of the snap-on riser iron ring;
FIG. 4 is a cross-sectional view of a snap-lock riser iron ring;
FIG. 5 is a cross-sectional view of a riser sand mold.
1. A roller system; 2. a telescoping mechanism; 3. a box opening mechanism; 4. a vibration mechanism; 5. covering a sand layer; 6. iron loading; 7. a lower iron type; 8. an upper opening; 9. riser sand mould; 10. a lock catch type riser iron ring; 11. riser; 12. casting; 13. a semi-circle; 14. a rotation pin; 15. a jack; 16. a plug pin; 17. a base; 18. a vibration frame; 19. a spring; 20. and vibrating the motor.
Detailed Description
The invention is further illustrated by the following figures and examples, which are not intended to be limiting.
Examples: a casting method for sand lined metal mold casting comprises the following steps:
s1: before casting, combining an upper iron mold and a lower iron mold with sand coating layers, then placing a riser sand mold on the upper iron mold, sleeving a lock catch type riser iron ring on the periphery of the riser sand mold, and fixing a riser formed in the riser sand mold after casting by using the lock catch type riser iron ring;
s2: after pouring and cooling, conveying the whole set of iron molds to the lower part of a box opening mechanism by a roller way system, and lifting the upper iron molds by the box opening mechanism, wherein a lock catch type riser iron ring clamps a riser of a riser sand mold so as to be connected with the pouring system and a casting together on the upper iron molds;
s3: placing the lifted upper iron mold on a vibration mechanism through a box opening mechanism, and then unwinding and taking down the lock catch type riser iron ring;
s4: and (3) vibrating and separating, starting a vibrating mechanism to perform jarring on the upper iron mold, and falling castings, risers and sand coating layers below the vibrating mechanism under the action of the jarring, so that the work of discharging the castings is completed.
The minimum inner diameter of the lock catch type riser iron ring is smaller than the maximum outer diameter of the riser, and the maximum outer diameter of the riser is smaller than the minimum outer diameter of the upper opening of the upper iron mold. The minimum inner diameter of the lock catch type riser iron ring 10 is smaller than the maximum outer diameter of the riser 11, and the lock catch type riser iron ring has a limiting effect on the riser 11, so that even if slight vibration exists in the conveying or overturning process on a production line, the riser 11 and the lock catch type riser iron ring 10 cannot be separated, and the falling-off phenomenon of a casting 12 is effectively avoided; the maximum outer diameter of the riser 11 is smaller than the minimum outer diameter of the upper opening 8 of the upper iron mold 6, so that the riser 11 passes through the upper opening 8 of the upper iron mold 6 during vibration separation, and separation of castings 12 is realized.
The conveying roller way on be equipped with telescopic machanism, when unpacking, telescopic machanism stretches out, keeps off in the top at lower indisputable type edge, ensures that lower indisputable type can not be lifted at unpacking in-process.
The casting device for sand-lined metal mold casting comprises a roller way system 1 for conveying metal molds, wherein a telescopic mechanism 2 is arranged on the roller way system 1, and the telescopic mechanism 2 is connected with a vibration mechanism 4 through a box opening mechanism 3;
the iron mold comprises an upper iron mold 6 and a lower iron mold 7 which are matched with each other and provided with a sand coating layer 5, an upper opening 8 is formed in the upper iron mold 7, a riser sand mold 9 communicated with the upper opening 8 is formed in the top of the upper iron mold 6, and a lock catch type riser iron ring 10 is arranged on the outer side of the riser sand mold 9; the lock catch type riser iron ring 10 is used for clamping and fixing a riser 11 formed in the cast riser sand mould 9;
the roller system 1 is used for conveying the cast and cooled iron mold to the lower part of the box opening mechanism 3;
the telescopic mechanism 2 is arranged on the roller way system 1 and used for limiting the lower iron mold 6;
the box opening mechanism 3 is used for lifting the upper iron mold 6;
the vibration mechanism 4 is used for vibrating and separating castings 12 formed by pouring in the upper iron mold 6 after the box opening.
As shown in fig. 3 and 4, the lock catch type riser iron ring 10 is composed of two semicircular rings 13, one ends of the two semicircular rings 13 are rotationally connected through a rotating pin 14, the other ends of the two semicircular rings 13 are provided with corresponding insertion holes 15, and a plug pin 16 is inserted into each insertion hole 15; the two semicircular rings 13 are utilized to rotate and combine to form the lock catch type riser iron ring 10, and the lock catch type riser iron ring has the characteristics of simple structure and convenience in installation and disassembly.
As shown in fig. 5, the riser sand mold 9 has an inverted cone structure with a wide inner diameter and a narrow bottom.
The inner contour of the lock catch type riser iron ring 10 is matched with the outer contour of the riser sand mould 9.
As shown in fig. 2, the vibration mechanism 4 comprises a base 17, a hollow vibration frame 18 is arranged above the base 17, a plurality of springs 19 are arranged between the vibration frame 18 and the base 17, a vibration motor 20 is arranged on the vibration frame 18, the vibration motor 20 is started, the casting 12, the riser 11 and the sand coating layer 5 pass through the vibration frame 18 to drop below the vibration mechanism 4 through the vibration frame 18 to finish the work of discharging the casting 12.
The vibration frame 18 is matched with the upper iron mold 6, wherein an iron-type limiting block is arranged on the vibration frame 18 to prevent the upper iron mold 6 from running after vibration.
Working principle: according to the invention, the upper iron mold 6 and the lower iron mold 7 which are matched with each other and provided with the sand coating layer 5 are arranged, the upper riser sand mold 9 is arranged on the upper iron mold 6, the lock catch type riser iron ring 10 is sleeved on the periphery of the riser sand mold 9, the sand coating layer 5 is arranged on the upper iron mold 6 and the lower iron mold 7, molten iron is poured into the upper iron mold 6 and the lower iron mold 7 after the mold is closed, the riser 11 is formed in the riser sand mold 9, the lock catch type riser iron ring 10 is utilized to lock the riser sand mold 9 and the riser 11, the casting 12 is ensured to be connected to the upper iron mold, the casting 12 is prevented from falling off due to vibration in the process of conveying or overturning the upper iron mold on a production line, then the upper iron mold 6 is arranged on the vibration mechanism 4, the lock catch type riser iron ring 10 is disassembled, and the work of the casting 12 is completed through the vibration of the upper iron mold 6.
Claims (3)
1. The casting method for sand-lined casting of the iron mold is characterized in that the iron mold comprises an upper iron mold (6) and a lower iron mold (7) which are matched with each other and provided with a sand-lined layer (5), an upper opening (8) is formed in the upper iron mold (6), a riser sand mold (9) communicated with the upper opening (8) is formed in the top of the upper iron mold (6), and a locking riser iron ring (10) is arranged on the outer side of the riser sand mold (9); the locking riser iron ring (10) is used for clamping and fixing a riser (11) formed in the cast riser sand mould (9);
the method comprises the following steps:
s1: before casting, combining an upper iron mold and a lower iron mold with sand coating layers, then placing a riser sand mold on the upper iron mold, sleeving a lock catch type riser iron ring on the periphery of the riser sand mold, and fixing a riser formed in the riser sand mold after casting by using the lock catch type riser iron ring;
s2: after pouring and cooling, conveying the whole set of iron molds to the lower part of a box opening mechanism by a roller way system, and lifting the upper iron molds by the box opening mechanism, wherein a lock catch type riser iron ring clamps a riser of a riser sand mold so as to be connected with the pouring system and a casting together on the upper iron molds;
s3: placing the lifted upper iron mold on a vibration mechanism through a box opening mechanism, and then unwinding and taking down the lock catch type riser iron ring;
s4: vibrating and separating, starting a vibrating mechanism to perform jarring on the upper iron mold, and falling a casting, a riser and a sand coating layer below the vibrating mechanism under the action of the jarring, so as to finish the work of discharging the casting;
the utility model provides a novel casting device, including the minimum external diameter of hasp formula riser iron ring be less than the minimum external diameter of riser, the minimum external diameter of riser be less than the minimum external diameter of last mouth of last iron type, go out foundry goods device including carrying indisputable roller way system (1), be equipped with telescopic machanism (2) on roller way system (1), telescopic machanism (2) are connected with vibration mechanism (4) through unpacking mechanism (3), during unpacking, telescopic machanism stretches out, keep off in the top at indisputable type edge down, ensure that indisputable type can not be lifted at unpacking in-process down, riser sand mould (9) be wide down the back taper structure in internal diameter, vibration mechanism (4) include base (17), the top of base (17) is equipped with hollow vibrations frame (18), be equipped with a plurality of springs (19) between vibrations frame (18) and base (17), vibrations frame (18) on be equipped with vibrations motor (20), vibrations frame (18) and last indisputable type (6) cooperate, wherein be equipped with indisputable type stopper on the vibrations frame (18).
2. The casting method for iron mold sand lined casting according to claim 1, wherein: the locking riser iron ring (10) consists of two semicircular rings (13), one ends of the two semicircular rings (13) are rotationally connected through a rotating pin (14), corresponding insertion holes (15) are formed in the other ends of the two semicircular rings (13), and inserted pins (16) are inserted into the insertion holes (15).
3. The casting method for iron mold sand lined casting according to claim 2, wherein: the inner contour of the lock catch type riser iron ring (10) is matched with the outer contour of the riser sand mould (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910720835.7A CN110303144B (en) | 2019-08-06 | 2019-08-06 | Casting method and device for sand-lined iron mold casting |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910720835.7A CN110303144B (en) | 2019-08-06 | 2019-08-06 | Casting method and device for sand-lined iron mold casting |
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| Publication Number | Publication Date |
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| CN110303144A CN110303144A (en) | 2019-10-08 |
| CN110303144B true CN110303144B (en) | 2024-03-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910720835.7A Active CN110303144B (en) | 2019-08-06 | 2019-08-06 | Casting method and device for sand-lined iron mold casting |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111531152B (en) * | 2020-04-30 | 2021-09-24 | 邵东智能制造技术研究院有限公司 | Blanking device suitable for mold taking and closing of multi-size mold |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004025259A (en) * | 2002-06-26 | 2004-01-29 | Showa Corp | Casting apparatus and method with metallic mold |
| CN106807925A (en) * | 2017-03-24 | 2017-06-09 | 佛山市恒学科技服务有限公司 | The casting demoulding device and its device for sand coated iron mould structure of a kind of device for sand coated iron mould |
| DE102018251751A1 (en) * | 2017-12-28 | 2019-07-04 | Sintokogio, Ltd. | Method for separating a casting mold and device for separating a casting mold |
| CN210475512U (en) * | 2019-08-06 | 2020-05-08 | 浙江省机电设计研究院有限公司 | Foundry goods device of going out of sand lined metal mold casting |
-
2019
- 2019-08-06 CN CN201910720835.7A patent/CN110303144B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004025259A (en) * | 2002-06-26 | 2004-01-29 | Showa Corp | Casting apparatus and method with metallic mold |
| CN106807925A (en) * | 2017-03-24 | 2017-06-09 | 佛山市恒学科技服务有限公司 | The casting demoulding device and its device for sand coated iron mould structure of a kind of device for sand coated iron mould |
| DE102018251751A1 (en) * | 2017-12-28 | 2019-07-04 | Sintokogio, Ltd. | Method for separating a casting mold and device for separating a casting mold |
| CN210475512U (en) * | 2019-08-06 | 2020-05-08 | 浙江省机电设计研究院有限公司 | Foundry goods device of going out of sand lined metal mold casting |
Non-Patent Citations (1)
| Title |
|---|
| 铁型覆砂铸造及其发展;黄列群;潘东杰;何芝梅;薛存球;马益诚;沈永华;林方夫;高强;;现代铸铁(第03期);全文 * |
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