CN114346231A - Automatic pouring unit for sand lined metal mold casting and operation method thereof - Google Patents
Automatic pouring unit for sand lined metal mold casting and operation method thereof Download PDFInfo
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- CN114346231A CN114346231A CN202210059842.9A CN202210059842A CN114346231A CN 114346231 A CN114346231 A CN 114346231A CN 202210059842 A CN202210059842 A CN 202210059842A CN 114346231 A CN114346231 A CN 114346231A
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Abstract
The invention discloses an automatic pouring unit for sand lined metal mold casting and an operation method thereof, wherein the automatic pouring unit comprises a ladle changing system, a bilateral pouring machine, a first roller way system, a second roller way system, a box locking mechanism, a metal mold, a first transport trolley and a second transport trolley; the first transport trolley is connected with the first roller way system and transversely arranged at the end part of the first roller way system; the second transport trolley is connected with the second roller way system and transversely arranged at the end part of the second roller way system, and the second transport trolley and the second roller way system are respectively arranged at two sides of the bilateral casting machine. The ladle changing system is arranged at the end part of the double-side casting machine. The box locking mechanism is installed on the first roller way system and the second roller way system. The ladle changing system realizes the quick ladle changing of the bilateral casting machine; and the bilateral casting machine realizes the sequential casting of the iron molds on the first roller way system and the second roller way system. The pouring unit of the invention realizes automatic production, eliminates the potential safety hazard of manual molten iron transfer, improves the production efficiency and provides basic conditions for realizing intelligent production.
Description
Technical Field
The invention relates to the field of sand lined metal mold casting production equipment, in particular to an automatic pouring unit for sand lined metal mold casting and an operation method thereof.
Background
The casting mould is formed by covering a thin layer of precoated sand on the inner cavity of a metal mould, so that the casting mould has good rigidity, has advantages in producing nodular cast iron castings, can fully exert the graphitization expansion self-feeding characteristic of nodular cast iron, and produces castings with compact structure and stable size. In recent years, with the development of economy and the improvement of the living standard of people, the problems of difficult recruitment, high labor cost and the like are the problems faced by foundry enterprises, so that the requirement on the automation level of sand-lined iron mold casting production is higher and higher.
After the upper and lower iron molds are combined, the upper and lower iron molds need to be locked together during casting, and the main reasons are as follows: 1. the upper mold can be lifted by the impulsive force of the molten iron during pouring; 2. the nodular cast iron can separate out graphite in the process of molten iron solidification, and has a graphitization and expansion process, so that the volume is increased.
Because the production efficiency of the sand lined metal mold casting production line is relatively low relative to the production lines of static pressure lines, vertical lines and the like, if an automatic casting machine is equipped, the utilization rate of the sand lined metal mold casting production line is very low, and the cost of the automatic casting machine is higher, the sand lined metal mold casting production line is generally not equipped with the automatic casting machine, and the manual travelling crane ladle casting is mainly adopted.
Disclosure of Invention
The invention aims to provide an automatic pouring unit for sand lined metal mold casting and an operation method thereof. The invention not only makes full use of the utilization rate of the casting machine, improves the production efficiency, but also realizes the automatic entering and exiting of the casting ladle into and from the casting unit and the automatic locking of the iron mold in the casting section, improves the automation level of the production line, eliminates the potential safety hazard of the production mode of manually driving to transfer the casting ladle at present, and provides basic conditions for realizing intelligent manufacturing. In addition, the invention also has the characteristics of strong reliability and strong operability.
The technical scheme of the invention is as follows: an automatic pouring unit for sand-lined metal mold casting comprises a ladle changing system, a ladle changing system ground rail, a bilateral pouring machine ground rail, a first roller way system, a second roller way system, a box locking mechanism, a metal mold, a first transport trolley ground rail, a second transport trolley and a second transport trolley ground rail; the first roller way system and the second roller way system are arranged in parallel, and a plurality of iron mold storage stations and a box locking mechanism for locking the iron molds to prevent the boxes from being lifted are respectively arranged on the first roller way system and the second roller way system; the ground rails of the bilateral casting machine are arranged in parallel between the first roller way system and the second roller way system; the bilateral casting machine runs on the ground rails of the bilateral casting machine in parallel to the running direction of the iron mold and respectively casts the iron molds on the roller way systems on the two sides; the end part of the first roller way system is provided with a first transport trolley ground rail which is arranged perpendicular to the ground rails of the bilateral casting machine, and the first transport trolley is arranged on the first transport trolley ground rail; the end part of the second roller system is provided with a second transport trolley ground rail which is arranged perpendicular to the ground rails of the bilateral casting machine, and the second transport trolley is arranged on the second transport trolley ground rail; the first transport trolley and the second transport trolley respectively send out the iron molds from the first roller way system and the second roller way system to the next production unit; the ladle changing system ground rail is vertically arranged at the end part of the ground rails of the bilateral casting machines, and the ladle changing system runs on the ground rails of the ladle changing system in a direction perpendicular to the traveling direction of the bilateral casting machines and is used for realizing butt joint of roller ways on the ladle changing system and roller ways on the bilateral casting machines.
In the automatic pouring unit for sand lined iron mold casting, the ladle changing system comprises a ladle outlet roller way, a ladle inlet roller way and a switching motor; and the ladle outlet roller way and the ladle inlet roller way are respectively aligned to the roller ways on the bilateral casting machines by switching the operation of the motor.
In the automatic pouring unit for sand lined iron mold casting, the bilateral pouring machine comprises a rack, and a rotating mechanism and an operating room rack are arranged on the rack; the rotating mechanism is provided with a tilting mechanism and a casting ladle roller way; and an operation chamber is arranged on the operation chamber rack.
According to the automatic pouring unit for sand lined metal mold casting, the metal molds comprise upper metal molds and lower metal molds which are matched with each other, and each pair of metal molds is locked by four sets of box locking mechanisms.
In the automatic pouring unit for sand lined iron mold casting, the hydraulic box locking mechanism comprises a movable frame, a lower pressing block, an adjusting screw and a hydraulic cylinder; the adjusting screw is arranged on the movable frame and used for adjusting the distance between the adjusting screw and the lower pressing block so as to meet the clamping requirements of iron types with different thicknesses; the lower pressing block is arranged inside the movable frame, and the movable frame and the lower pressing block are sleeved outside the rectangular tube of the roller way; the hydraulic cylinder is fixed at the bottom of the movable frame, and a piston rod of the hydraulic cylinder is fixed on the lower pressing block.
In the automatic pouring unit for sand lined metal mold casting, the top surface of the lower pressing block is lower than that of the lower iron mold.
According to the operation method of the automatic pouring unit for sand lined metal mold casting, the empty pouring ladle on the bilateral pouring machine is replaced by the replacement ladle system, and the pouring ladle filled with molten iron is conveyed to the bilateral pouring machine; the box locking mechanism locks the iron mold on the first roller way system, the bilateral casting machine casts the iron mold on the first roller way system, at the moment, the box locking mechanism unlocks the iron mold on the second roller way system, the second transport trolley outputs the iron mold out of the casting unit, and the iron mold which is not cast enters the second roller way system is waited; the two-side casting machine finishes casting the iron mold on the first roller system, the ladle changing system is used for changing the casting ladle filled with molten iron again, the box locking mechanism locks the iron mold on the second roller system, the two-side casting machine casts the iron mold on the second roller system, at the moment, the box locking mechanism unlocks the iron mold on the first roller system, the first transport trolley outputs the iron mold out of the casting unit, and the iron mold which is not cast enters the first roller system is waited to enter; and finishing pouring the iron mold on the second roller system by the bilateral casting machine, namely finishing one working cycle.
Compared with the prior art, the invention has the following advantages:
1. the automatic pouring unit for sand-lined metal mold casting realizes bilateral pouring, after the metal mold on the roller way on one side is poured, the metal mold is in a box locking state to wait for molten iron in the mold to solidify, at the moment, the pouring machine finishes a ladle changing process and pours the metal mold on the roller way system on the other side, the two sides are replaced mutually, the use of the pouring machine is fully utilized, and the production efficiency is improved.
2. The tilting mechanism on the casting machine can rotate by 180 degrees, so that casting on two sides is realized; and a pouring ladle roller way is arranged on the casting machine to realize the inlet and outlet of the pouring ladle. The ladle changing system is provided with the ladle inlet roller way and the ladle outlet roller way, so that the fast switching between the empty ladle after casting and the full ladle before casting is realized, and the production efficiency is improved. The invention realizes the automatic entering and exiting of the pouring ladle into and from the pouring unit, eliminates the potential safety hazard of the operation mode of manually driving to transfer the pouring ladle at present, and provides basic conditions for realizing intelligent manufacturing.
3. When the box locking mechanism locks the iron mold, no additional acting force is generated on the roller way system, and the service life of the roller way is not influenced.
Drawings
FIG. 1 is a plan view of an automatic pouring unit for sand lined metal mold casting;
FIG. 2 is a schematic view of a hydraulic lock box mechanism;
FIG. 3 is a schematic view of the pouring state of the automated pouring unit;
FIG. 4 is a schematic diagram of an automated pouring unit change of ladle state;
FIG. 5 is a top view of the bag changing system.
Reference numerals
1. A packet changing system; 2. changing a ground rail of the system; 3. a bilateral casting machine; 4. casting machine ground rails on two sides; 5. a first roller bed system; 6. a second roller system; 7. a box locking mechanism; 8. iron type; 9. a first transportation trolley; 10. a first carriage ground rail; 11. a second transportation trolley; 12. a second carriage ground rail; 13. iron casting; 14. casting iron mold; 15. discharging the ladle roller way; 16. a roll-in table; 17. switching the motors; 18. a frame; 19. a rotation mechanism; 20. a tilting mechanism; 21. an operating room rack; 22. an operation chamber; 23. casting a ladle roller way; 24. pouring a ladle; 25. a movable frame; 26. pressing the block; 27. an adjusting screw; 28. and a hydraulic cylinder.
Detailed Description
The invention is further illustrated by the following figures and examples, which are not to be construed as limiting the invention.
Example (b): an automatic pouring unit for sand lined metal mold casting, as shown in fig. 1, comprises: the system comprises a bag changing system 1, a bag changing system ground rail 2, a bilateral casting machine 3, a bilateral casting machine ground rail 4, a first roller way system 5, a second roller way system 6, a box locking mechanism 7, an iron mold 8, a first transport trolley 9, a first transport trolley ground rail 10, a second transport trolley 11 and a second transport trolley ground rail 12. As shown in fig. 3, the double-side casting machine 3 comprises a frame 18, wherein a rotating mechanism 19 and an operating room rack 21 are arranged on the frame 18; the rotating mechanism 19 is provided with a tilting mechanism 20 and a casting ladle roller bed 23; the operation room table 21 is provided with an operation room 22. The first roller way system 5 and the second roller way system 6 of the pouring station are arranged in parallel, the ground rails 4 of the bilateral casting machines are arranged between the two roller way systems in parallel, and the bilateral casting machines 3 run in the running direction of the ground rails 4 of the bilateral casting machines parallel to the iron molds 8 and can respectively pour the iron molds 8 on the roller way systems on the two sides. The first roller way system 5 and the second roller way system 6 are identical in structure and are composed of a plurality of roller ways, rollers on the roller ways are driven by motors to rotate on the roller ways to drive the iron mold 8 to convey forwards, and four hydraulic box locking mechanisms 7 are arranged on the roller ways. The end part of the first roller way system 5 is provided with a first transport trolley ground rail 10 which is arranged perpendicular to the ground rails 4 of the bilateral casting machine, and a first transport trolley 9 is arranged on the first transport trolley ground rail 10; the end part of the second roller system 6 is provided with a second transport trolley ground rail 12 which is arranged perpendicular to the ground rails 4 of the bilateral casting machine, and the second transport trolley 11 is arranged on the second transport trolley ground rail 12; and the first transport trolley 9 and the second transport trolley 11 respectively send the iron mold 8 from the first roller way system 5 and the second roller way system 6 out of the casting unit to the next production unit. The ladle changing system ground rail 2 is vertically arranged at the end part of the ground rails 4 of the bilateral casting machines, the ladle changing system 1 runs in a direction vertical to the traveling direction of the bilateral casting machines 3, and as shown in fig. 2, the ladle changing system 1 comprises a ladle outlet roller way 15, a ladle inlet roller way 16 and a switching motor 17; by switching the operation of the motor 17, the ladle outlet roller table 15 and the ladle inlet roller table 16 are respectively aligned to the ladle roller tables 23 on the bilateral casting machine 3, so that the 2-section roller tables on the ladle changing system are respectively butted with the roller tables on the bilateral casting machine 3.
In this embodiment, the iron mold 8 includes an upper iron mold 13 and a lower iron mold 14. During pouring, the upper iron mold 13 is lifted by the impact force and the buoyancy force of the molten iron; after casting and before the molten iron is solidified, the upper iron mold is lifted up due to the volume increase caused by the graphitization and expansion action in the process of the nodular cast iron solidification, so the upper iron mold 13 and the lower iron mold 14 must be locked from the beginning of casting to before the molten iron is solidified, and the upper iron mold 13 is prevented from being lifted up. Each pair of iron shapes 8 needs to be locked by four sets of box locking mechanisms 7.
The hydraulic box locking mechanism 7, as shown in fig. 2, includes a movable frame 25, a lower pressing block 26, an adjusting screw 27, and a hydraulic cylinder 28. The adjusting screw 27 is arranged on the movable frame 25 and used for adjusting the distance between the adjusting screw and the lower pressing block 26, so that iron forms with different thicknesses can be clamped. The lower pressing block 26 is arranged inside the movable frame 25, the movable frame 25 and the lower pressing block 26 are sleeved outside a rectangular tube of the roller way, the rectangular tube can move up and down in the rectangular tube, the hydraulic cylinder 28 is fixed at the bottom of the movable frame 25, and a piston rod of the hydraulic cylinder 28 is fixed on the lower pressing block 26. The top surface of the lower pressing block 26 is 5mm lower than the upper edge of the roller on the roller way, namely, when the iron mold runs on the roller way, the top surface of the lower pressing block 26 is lower than the lower iron mold 14. When the piston rod of the hydraulic cylinder 28 is ejected, the movable frame 25 is pressed down, and the lower press block 26 is lifted up, together locking the upper iron mold 13 and the lower iron mold 14. Because the movable frame 25 and the lower pressing block 26 are in a free state in the vertical direction (i.e. the acting force direction of the hydraulic cylinder) on the rectangular tube of the roller way, the rectangular tube and the roller of the roller way are not subjected to the acting force of the hydraulic cylinder 28, and the service life of the roller way is not affected.
In the operation method of the automatic pouring unit for sand lined metal mold casting in the embodiment, the metal mold 8 is conveyed into the first roller system 5, the hydraulic box locking mechanism 7 locks the upper and lower metal molds, and the box lifting force generated when molten iron in the metal mold is not completely solidified in the pouring process and after pouring is prevented, so that the upper metal mold is lifted. The iron mold 8 after locking the box is still on the roller way, the empty pouring ladle 24 on the bilateral pouring machine 3 is replaced by arranging the replacement ladle system 1, the pouring ladle 24 filled with molten iron is conveyed to the bilateral pouring machine 3, and each iron mold is poured by the bilateral pouring machine 3. And the poured iron mold 8 is continuously in a box locking state, and molten iron in the iron mold is waited to be solidified. At this time, the double-side casting machine 3 returns to the initial work position, and another ladle 24 newly filled with molten iron waits on the ladle inlet roller 16. The ladle outlet roller way 15 is in butt joint with the ladle roller way 23, an empty ladle 24 after casting is withdrawn from the ladle outlet roller way 15, and the ladle inlet roller way 16 is in butt joint with the ladle roller way 23 through the driving of the switching motor 17. And the pouring ladle 24 on the ladle inlet roller table 16 enters the bilateral pouring machine 3 to complete the ladle changing process. The double-sided casting machine 3 casts the iron mold 8 on the second roller system 6. In the pouring process, the box locking mechanism 7 on the first roller way system 5 is opened, the poured iron mold 8 moves out of the pouring station through the first transport trolley 9, a new batch of un-poured iron molds 8 enters the first roller way system 5 again, the box locking mechanism 7 locks the iron mold 8, and the pouring is waited by the bilateral pouring machine.
The working principle is as follows: according to the invention, the replacement ladle system 1 is arranged, the empty ladle 24 on the bilateral casting machine 3 is replaced, and the ladle 24 filled with molten iron is conveyed to the bilateral casting machine 3. The box locking mechanism 7 locks the iron mold 8 on the first roller system 5. The two-side casting machine 3 casts the iron mold 8 on the first roller way system 5, the box locking mechanism 7 unlocks the iron mold 8 on the second roller way system 6 at the moment, the second transport trolley 11 outputs the iron mold 8 out of the casting unit, and the non-cast iron mold 8 is waited to enter the second roller way system 6. And the bilateral casting machine 3 finishes casting the iron mold on the first roller system 5, the ladle changing system 1 is used for changing the ladle 24 filled with molten iron again, and the box locking mechanism 7 locks the iron mold 8 on the second roller system 6. The two-side casting machine 3 casts the iron mold 8 on the second roller way system 6, the box locking mechanism 7 unlocks the iron mold 8 on the first roller way system 5 at the moment, the first transport trolley 9 outputs the iron mold 8 out of the casting unit, and the non-cast iron mold 8 is waited to enter the first roller way system 6. And (4) finishing casting the iron mold 8 on the second roller system 6 by the double-side casting machine 3, namely finishing one working cycle.
Claims (7)
1. The utility model provides an automatic pouring unit of sand lined metal mold casting which characterized in that: the device comprises a ladle changing system (1), a ladle changing system ground rail (2), a bilateral casting machine (3), a bilateral casting machine ground rail (4), a first roller way system (5), a second roller way system (6), a box locking mechanism (7), an iron mold (8), a first transport trolley (9), a first transport trolley ground rail (10), a second transport trolley (11) and a second transport trolley ground rail (12); the first roller way system (5) and the second roller way system (6) are arranged in parallel, and a plurality of stations for storing iron molds (8) and a box locking mechanism (7) for locking the iron molds (8) and preventing boxes from being lifted are respectively arranged on the first roller way system (5) and the second roller way system (6); the ground rails (4) of the bilateral casting machine are arranged in parallel between the first roller way system (5) and the second roller way system (6); the bilateral casting machine (3) runs on the bilateral casting machine ground rails (4) in parallel to the running direction of the iron mold (8), and respectively casts the iron molds (8) on the roller way systems on the two sides; a first transport trolley ground rail (10) which is perpendicular to the ground rails (4) of the bilateral casting machines is arranged at the end part of the first roller way system (5), and a first transport trolley (9) is arranged on the first transport trolley ground rail (10); a second transport trolley ground rail (12) which is perpendicular to the ground rails (4) of the bilateral casting machine is arranged at the end part of the second roller system (6), and the second transport trolley (11) is arranged on the second transport trolley ground rail (12); the first transport trolley (9) and the second transport trolley (11) respectively send out the iron molds (8) from the first roller way system (5) and the second roller way system (6) to the next production unit; the ladle changing system ground rail (2) is vertically arranged at the end part of the ground rails (4) of the bilateral casting machines, and the ladle changing system (1) runs on the ladle changing system ground rail (2) in a direction perpendicular to the traveling direction of the bilateral casting machines (3) and is used for realizing butt joint of roller ways on the ladle changing system (1) and roller ways on the bilateral casting machines (3) respectively.
2. The sand lined foundry automatic pouring unit of an iron mold (8) according to claim 1, characterized in that: the ladle changing system (1) comprises a ladle outlet roller way (15), a ladle inlet roller way (16) and a switching motor (17); the operation of the motor (17) is switched, so that the ladle outlet roller way (15) and the ladle inlet roller way (16) are respectively aligned with the roller ways on the bilateral casting machine (3).
3. The sand lined foundry automatic pouring unit of an iron mold (8) according to claim 1, characterized in that: the bilateral casting machine (3) comprises a rack (18), wherein a rotating mechanism (19) and an operating room rack (21) are arranged on the rack (18); the rotating mechanism (19) is provided with a tilting mechanism (20) and a casting ladle roller way (23); an operation chamber (22) is arranged on the operation chamber rack (21).
4. The sand lined foundry automatic pouring unit of an iron mold (8) according to claim 1, characterized in that: the iron mold (8) comprises an upper iron mold (13) and a lower iron mold (14) which are matched with each other, and each pair of iron molds (8) is locked by four sets of box locking mechanisms (7).
5. The sand lined foundry automatic pouring unit of an iron mold (8) according to claim 1, characterized in that: the box locking mechanism (7) comprises a movable frame (25), a lower pressing block (26), an adjusting screw (27) and a hydraulic cylinder (28); the adjusting screw (27) is arranged on the movable frame (25) and is used for adjusting the distance between the adjusting screw and the lower pressing block (26) so as to meet the clamping requirements of iron molds (8) with different thicknesses; the lower pressing block (26) is arranged inside the movable frame (25), and the movable frame (25) and the lower pressing block (26) are sleeved outside the rectangular tube of the roller way; the hydraulic cylinder (28) is fixed at the bottom of the movable frame (25), and a piston rod of the hydraulic cylinder (28) is fixed on the lower pressing block (26).
6. The sand lined metal mold (8) casting automated pouring unit of claim 5, wherein: the top surface of the lower briquetting (26) is lower than the lower iron mold (14).
7. The method of operating an automatic pouring unit for sand lined metal mold casting according to any one of claims 1 to 6, wherein: replacing an empty pouring ladle on the bilateral casting machine by a replacement ladle system, and conveying the pouring ladle filled with molten iron to the bilateral casting machine; the box locking mechanism locks the iron mold on the first roller way system, the bilateral casting machine casts the iron mold on the first roller way system, at the moment, the box locking mechanism unlocks the iron mold on the second roller way system, the second transport trolley outputs the iron mold out of the casting unit, and the iron mold which is not cast enters the second roller way system is waited; the two-side casting machine finishes casting the iron mold on the first roller system, the ladle changing system is used for changing the casting ladle filled with molten iron again, the box locking mechanism locks the iron mold on the second roller system, the two-side casting machine casts the iron mold on the second roller system, at the moment, the box locking mechanism unlocks the iron mold on the first roller system, the first transport trolley outputs the iron mold out of the casting unit, and the iron mold which is not cast enters the first roller system is waited to enter; and finishing pouring the iron mold on the second roller system by the bilateral casting machine, namely finishing one working cycle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210059842.9A CN114346231B (en) | 2022-01-19 | 2022-01-19 | Automatic pouring unit for sand-lined iron mold casting and operation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210059842.9A CN114346231B (en) | 2022-01-19 | 2022-01-19 | Automatic pouring unit for sand-lined iron mold casting and operation method thereof |
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| CN114346231A true CN114346231A (en) | 2022-04-15 |
| CN114346231B CN114346231B (en) | 2023-05-09 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN118080828A (en) * | 2024-04-23 | 2024-05-28 | 龙岩市壹荣铸造有限公司 | Ground vehicle capable of being accurately poured and control method |
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| Publication number | Publication date |
|---|---|
| CN114346231B (en) | 2023-05-09 |
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