A ductile cast iron casting device

Abstract

The application discloses a nodular cast iron pouring device, which comprises a pouring bucket body, first moving columns fixedly connected to both sides of the outer circumferential surface of the pouring bucket body, first limiting arc plates slidingly connected to the outer portions of the first moving columns, R-shaped support bodies fixedly connected to the outer walls of the first limiting arc plates away from the pouring bucket body, top dumping structures arranged on the R-shaped support bodies, second limiting arc plates fixedly connected to the sides of the R-shaped support bodies close to the pouring bucket body, and second moving columns slidingly connected to the interiors of the second limiting arc plates. The pouring bucket body is driven to rotate around the discharge nozzle on the pouring bucket body by the motor, so that the position of the metal liquid flowing out is fixed. Unlike the pouring bucket body in the prior art, the pouring bucket body needs to be adjusted in angle and position while pouring, and the nodular cast iron pouring device is convenient to use and simple to operate.

Description

Technical Field

[0001] This invention relates to the field of casting technology, and specifically to a casting apparatus for ductile iron. Background Technology

[0002] Ductile iron, a high-strength cast iron material developed in the 1950s, boasts comprehensive properties approaching those of steel. Based on its superior performance, it has been successfully used to cast parts subject to complex stresses and requiring high strength, toughness, and wear resistance. Ductile iron has rapidly become the second most widely used cast iron material after gray cast iron. The term "replacing steel with iron" primarily refers to ductile iron. Ductile iron is produced by spheroidizing and inoculating to obtain spheroidal graphite, effectively improving the mechanical properties of cast iron, particularly its plasticity and toughness, resulting in strength even higher than carbon steel. Casting is a common manufacturing process for ductile iron.

[0003] Chinese Patent Publication No. CN207756908U discloses a ductile iron casting device, mainly comprising a main body and a top cover. The top cover is provided on the top of the main body, a first lifting ring is provided on one side of the main body, and a second lifting ring is provided on the other side of the main body, with the first and second lifting rings being horizontal and vertical. The top cover includes a cover plate and a support frame. The bottom of the support frame is connected to the top of the main body, and the top of the support frame is provided with a cover plate. A slide is provided inside the support frame, and the slide is Z-shaped. A water inlet is provided on the cover plate, and a water outlet is provided on the top of the main body. The head of the slide is connected to the water inlet, and the tail of the slide is connected to the water outlet. This utility model has a simple structure and novel design, which can effectively improve the performance of the added elements that are not easily burned, thereby further improving the casting quality, and at the same time effectively improving the service life of the cast body and the stability of the operation.

[0004] This patent focuses on the protection of the casting body during casting. However, the casting body needs to be transported by a crane. If the crane rope breaks, the casting barrel will fall to the ground, causing significant damage to the surrounding environment and facilities. Furthermore, when using the casting body for casting, the casting barrel needs to be tilted manually. The high-temperature molten metal flowing from the outlet of the casting barrel will flow to different positions depending on the angle of rotation of the casting barrel. It is necessary to manually tilt and adjust the position to ensure that the high-temperature molten metal flows to the required position, which has a high risk factor and cannot guarantee the safety of workers.

[0005] Therefore, it is necessary to invent a casting device for ductile iron to solve the above problems.

[0006] The information disclosed in the background section is only intended to enhance the understanding of the background of this disclosure, and therefore may include information that does not constitute prior art known to those skilled in the art. Summary of the Invention

[0007] The purpose of this invention is to provide a casting device for ductile iron that prevents misalignment between the casting structure and the tilting structure, thereby addressing the aforementioned shortcomings in the technology.

[0008] To achieve the above objectives, the present invention provides the following technical solution: a ductile iron casting device, comprising a casting barrel body, wherein first movable columns are fixedly connected to both sides of the outer peripheral surface of the casting barrel body, a first limiting arc plate is slidably connected to the outside of the first movable columns, an R-shaped support is fixedly connected to the side of the outer wall of the first limiting arc plate away from the casting barrel body, the top of the R-shaped support is provided with a tilting structure, a second limiting arc plate is fixedly connected to the side of the R-shaped support near the casting barrel body, a second movable column is slidably connected inside the second limiting arc plate, the second movable column is fixedly connected to one side of the bottom of the casting barrel body, a plurality of limiting plates are rotatably connected inside the first limiting arc plate and the second limiting arc plate, a torsion spring is provided on one side of the outer wall of each limiting plate, one end of the torsion spring is fixedly connected to the limiting plate, the other end of the torsion spring is fixedly connected to the first limiting arc plate or the second limiting arc plate, and a prevention structure is provided on one side of the outer wall of the first limiting arc plate and the second limiting arc plate.

[0009] The preventive structure includes a sliding plate that penetrates and slidably connects to one side of the outer wall of the first and second limiting arc plates. A positioning block is fixedly connected to one side of the outer wall of the first and second limiting arc plates. A limiting frame is fixedly connected to one side of the outer wall of the positioning block. A slider is slidably connected inside the limiting frame. The slider is fixedly connected to the sliding plate. Two compression springs are fixedly connected to the side of the slider away from the sliding plate. The end of the compression spring away from the slider is fixedly connected to the limiting frame. An insertion hole is opened at the top of the slider. The insertion hole penetrates the top of the limiting frame. A stop block is slidably connected inside the insertion hole. Two limiting rods penetrate and are slidably connected inside the stop block. A stop rod penetrates the side of the limiting frame away from the sliding plate. The stop rod is slidably connected to the stop block. A tension spring is fixedly connected to the side of the limiting frame away from the slider. The end of the tension spring away from the limiting frame is fixedly connected to the stop rod.

[0010] Preferably, the tilting structure includes four symmetrically distributed motors fixedly connected to the top of the R-shaped support. A worm gear is fixedly connected to the top of the motor output shaft, and a worm wheel meshes with the bottom of the worm gear. A transmission shaft is fixedly connected inside the worm wheel. The transmission shaft passes through the R-shaped support and is rotatably connected to the R-shaped support. A reel is fixedly connected to the end of the transmission shaft away from the worm wheel. Steel cables are fixedly connected to the outer circumference of the two first moving columns and both ends of the second moving column. The four steel cables are respectively fixedly connected to the four reels.

[0011] Preferably, the bottom of the two R-shaped supports is fixedly connected to a lifting platform with casters.

[0012] Preferably, the top and bottom surfaces of the sliding plate and the limiting plate, which are close to each other, are chamfered.

[0013] Preferably, the centers of the first limiting arc plate and the second limiting arc plate coincide with the discharge nozzle on the casting barrel body.

[0014] The technical effects and advantages provided by the present invention in the above technical solution are as follows:

[0015] 1. The motor rotates, causing the tilting structure to rotate around the discharge nozzle on the casting barrel body, thus fixing the position of the poured molten metal. Unlike existing devices, where the casting barrel body needs to be adjusted in angle and position while tilting, this device makes casting convenient and easy to operate.

[0016] 2. Through the preventive structure, after the first and second moving columns drive the limiting plate to rotate, the stop block will fix the position between the slider and the limiting frame, so that the slide can not slide. When the steel cable breaks, the first and second moving columns will slide onto the limiting plate and will not fall to the ground. This reduces the amount of high-temperature molten metal spilled from the casting barrel, reduces losses, improves safety, and will not affect the normal operation of the tilting structure. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this invention. For those skilled in the art, other drawings can be obtained based on these drawings.

[0018] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0019] Figure 2 This is a perspective view of the present invention;

[0020] Figure 3 This is a perspective view of the second limiting arc plate of the present invention;

[0021] Figure 4 For the present invention Figure 3 Enlarged view of the A-section structure;

[0022] Figure 5 This is a cross-sectional view of the non-functional prevention structure of the present invention;

[0023] Figure 6 This is a cross-sectional view of the preventive structure of the present invention.

[0024] Explanation of reference numerals in the attached figures:

[0025] 1. Casting barrel body; 2. First moving column; 3. First limiting arc plate; 4. R-shaped support body; 5. Tilting structure; 6. Second limiting arc plate; 7. Second moving column; 8. Limiting plate; 9. Torsion spring; 10. Prevention structure; 11. Slide plate; 12. Positioning block; 13. Limiting frame; 14. Slider; 15. Compression spring; 16. Insertion hole; 17. Stop block; 18. Limiting rod; 19. Stopping rod; 20. Tension spring; 21. Motor; 22. Worm gear; 23. Worm wheel; 24. Winding wheel; 25. Steel cable; 26. Lifting platform. Detailed Implementation

[0026] Exemplary embodiments will now be described more fully with reference to the accompanying drawings. However, these exemplary embodiments can be implemented in many forms and should not be construed as limited to the examples set forth herein; rather, they are provided so that the description of this disclosure will be more complete and fully convey the concept of the exemplary embodiments to those skilled in the art. The drawings are merely illustrative of this disclosure and are not necessarily drawn to scale. The same reference numerals in the drawings denote the same or similar parts, and therefore repeated descriptions of them will be omitted.

[0027] Furthermore, the described features, structures, or characteristics can be combined in any suitable manner in one or more exemplary embodiments. Numerous specific details are provided in the following description to give a full understanding of exemplary embodiments of this disclosure. However, those skilled in the art will recognize that the technical solutions of this disclosure can be practiced with one or more of the specific details omitted, or other methods, components, steps, etc., can be employed. In other instances, well-known structures, methods, implementations, or operations are not shown or described in detail to avoid obscuring various aspects of this disclosure.

[0028] This invention provides, for example Figure 1-6 The illustrated ductile iron casting device includes a casting barrel body 1. First movable columns 2 are fixedly connected to both sides of the outer periphery of the casting barrel body 1. A first limiting arc plate 3 is slidably connected to the outside of the first movable columns 2. An R-shaped support body 4 is fixedly connected to the outer wall of the first limiting arc plate 3 away from the casting barrel body 1. A tilting structure 5 is provided at the top of the R-shaped support body 4. A second limiting arc plate 6 is fixedly connected to the side of the R-shaped support body 4 near the casting barrel body 1. A second movable column 7 is slidably connected inside the second limiting arc plate 6. The second movable column 7 is fixedly connected to one side of the bottom of the casting barrel body 1. Multiple limiting plates 8 are rotatably connected inside the first limiting arc plate 3 and the second limiting arc plate 6. A torsion spring 9 is provided on one side of the outer wall of each limiting plate 8. One end of the torsion spring 9 is fixedly connected to the limiting plate 8, and the other end of the torsion spring 9 is fixedly connected to either the first limiting arc plate 3 or the second limiting arc plate 6. A preventive structure 10 is provided on one side of the outer wall of the first limiting arc plate 3 and the second limiting arc plate 6.

[0029] The prevention structure 10 includes a sliding plate 11 that penetrates and slidably connects to one side of the outer wall of the first limiting arc plate 3 and the second limiting arc plate 6. A positioning block 12 is fixedly connected to one side of the outer wall of the first limiting arc plate 3 and the second limiting arc plate 6. A limiting frame 13 is fixedly connected to one side of the outer wall of the positioning block 12. A slider 14 is slidably connected inside the limiting frame 13. The slider 14 is fixedly connected to the sliding plate 11. Two compression springs 15 are fixedly connected to the side of the slider 14 away from the sliding plate 11. The end of the compression spring 15 away from the slider 14 is fixedly connected to the limiting frame 13. An insertion hole 16 is opened at the top of the slider 14. The insertion hole 16 penetrates the top of the limiting frame 13. A stop block 17 is slidably connected inside the insertion hole 16. Two limiting rods 18 penetrate and are slidably connected inside the stop block 17. A stop rod 19 penetrates the side of the limiting frame 13 away from the sliding plate 11. The stop rod 19 is slidably connected to the stop block 17. A tension spring 20 is fixedly connected to the side of the limiting frame 13 away from the slider 14. The end of the tension spring 20 away from the limiting frame 13 is fixedly connected to the stop rod 19. When the first moving column 2 and the second moving column 7 drive the limiting plate 8 to rotate, the limiting plate 8 drives the slide plate 11 to move, preventing the slide plate 11 in the structure 10 from driving the slider 14 to slide into the limiting frame 13. The slider 14 drives the compression spring 15 to compress and simultaneously drives the stop rod 19 to slide. At this time, the tension spring 20 is stretched. After the stop rod 19 slides out from the stop block 17, the stop block 17 slides into the insertion hole 16. When the first moving column 2 or the second moving column 7 no longer drives the limiting plate 8 to rotate, the compression spring 15 returns to its original position. The compression spring 15 drives the slider 14 to move, and the stop block 17 is completely inserted into the insertion hole 16, so that the relative position between the slider 14 and the limiting frame 13 is fixed. At this time, the slide plate 11 cannot move, and the tension spring 20 drives the stop rod 19 to return to its original position.

[0030] Furthermore, in the above technical solution, the tilting structure 5 includes four symmetrically distributed motors 21 fixedly connected to the top of the R-shaped support 4. A worm gear 22 is fixedly connected to the top of the output shaft of each motor 21, and a worm wheel 23 meshes with the bottom of the worm gear 22. A transmission shaft is fixedly connected inside the worm wheel 23. The transmission shaft passes through the R-shaped support 4 and is rotatably connected to it. A winding wheel 24 is fixedly connected to the end of the transmission shaft away from the worm wheel 23. Steel cables 25 are fixedly connected to the outer circumference of the two first moving columns 2 and both ends of the second moving column 7. The four steel cables 25 are fixedly connected to the four reels 24 respectively. The motor 21 drives the worm gear 22 to rotate, the worm gear 22 drives the worm wheel 23 to rotate, the worm wheel 23 drives the transmission shaft to rotate, the transmission shaft drives the reel 24 to rotate, and the reel 24 drives the steel cables 25. The steel cables 25 are wound around the reel 24. The steel cables 25 drive the first moving column 2 and the second moving column 7 to rise along the first limiting arc plate 3 and the second limiting arc plate 6. The first moving column 2 and the second moving column 7 drive the casting barrel body 1 to rotate around the discharge nozzle on the casting barrel body 1, pouring the high-temperature molten metal into the required position.

[0031] Furthermore, in the above technical solution, the bottom of the two R-shaped support bodies 4 is fixedly connected to a lifting platform 26 with casters, and the lifting platform 26 allows the device to be tilted to different heights.

[0032] Furthermore, in the above technical solution, the top and bottom surfaces of the sliding plate 11 and the limiting plate 8 that are close to each other are chamfered. By having chamfered top and bottom surfaces of the sliding plate 11 and the limiting plate 8 that are close to each other, the limiting plate 8 can drive the sliding plate 11 to move when it rotates.

[0033] Furthermore, in the above technical solution, the centers of the first limiting arc plate 3 and the second limiting arc plate 6 are both aligned with the discharge nozzle on the casting barrel body 1. By aligning the centers of the first limiting arc plate 3 and the second limiting arc plate 6 with the discharge nozzle on the casting barrel body 1, the point where the molten metal flows out is fixed when the device pours high-temperature molten metal, unlike existing casting barrel bodies 1 which require adjusting their position while pouring. This makes the pouring more stable and easier to control.

[0034] The specific implementation method is as follows: During operation, the casting barrel body 1 is first moved to the required position by the lifting platform 26, and the position of the discharge nozzle of the casting barrel body 1 is adjusted. Then, the motor 21 is started. The motor 21 drives the worm gear 22 to rotate, the worm gear 22 drives the worm wheel 23 to rotate, the worm wheel 23 drives the transmission shaft to rotate, the transmission shaft drives the winding wheel 24 to rotate, the winding wheel 24 drives the steel cable 25, the steel cable 25 is wound on the winding wheel 24, and the steel cable 25 drives the first moving column 2 and the second moving column 7 to rise along the first limiting arc plate 3 and the second limiting arc plate 6. The first moving column 2 and the second moving column 7 drive the limiting plate 8 to rotate, the limiting plate 8 drives the sliding plate 11 to slide, the sliding plate 11 drives the slider 14 to slide into the limiting frame 13, and the slider 14 drives the compression spring 15 to compress while driving When the stop rod 19 slides, the tension spring 20 is stretched. After the stop rod 19 slides out of the stop block 17, the stop block 17 slides into the insertion hole 16. When the first moving column 2 or the second moving column 7 no longer drives the limit plate 8 to rotate, the compression spring 15 returns to its original position. The compression spring 15 drives the slider 14 to move, and the stop block 17 is fully inserted into the insertion hole 16, fixing the relative position between the slider 14 and the limit frame 13. At this time, the slide plate 11 cannot move. The first moving column 2 and the second moving column 7 drive the casting barrel body 1 to rotate around the discharge nozzle on the casting barrel body 1, pouring the high-temperature molten metal into the required position. When the steel cable 25 breaks, causing the casting barrel body 1 to descend, the limit plate 8 and the slide plate 11 support the first moving column 2 and the second moving column 7. To prevent the casting barrel body 1 from tipping over and reduce damage, if no problem occurs, manually pull the stop rod 19 to stretch the tension spring 20, then pull the stop block 17 out of the insertion hole 16, release the stop rod 19 so that the stop rod 19 passes through the stop block 17. At this time, the first moving column 2 and the second moving column 7 can descend. The motor 21 rotates, causing the tilting structure 5 to drive the casting barrel body 1 to rotate around the discharge nozzle on the casting barrel body 1, so that the position of the poured molten metal flowing out is fixed. Unlike the existing device, when the casting barrel body 1 is tilted, it is necessary to adjust the angle and position while tilting. The casting is convenient and the operation is simple. Through the prevention structure 10, after the first moving column 2 and the second moving column 7 drive the limit plate 8 to rotate, the stop block 17 will slide. The fixed position between block 14 and limit frame 13 prevents slide plate 11 from sliding. When steel cable 25 breaks, the first moving column 2 and the second moving column 7 will slide onto limit plate 8, preventing them from falling to the ground. This reduces the amount of high-temperature molten metal spilled from casting barrel 1, minimizing losses and improving safety. Furthermore, it does not affect the normal operation of tilting structure 5. This embodiment specifically solves the problems in the prior art where transportation of castings requires a crane, and if the crane rope breaks, casting barrel 1 will fall to the ground, causing significant damage to the surrounding area. Additionally, when casting, casting barrel 1 needs to be manually tilted, and the high-temperature molten metal flowing from the outlet of casting barrel 1 varies with the angle of rotation of casting barrel 1.The locations where the liquid flows out also vary, requiring manual pouring and adjustment to ensure the hot molten metal reaches the desired destination. This poses a high risk and cannot guarantee the safety of workers.

[0035] Working principle of this invention:

[0036] See attached document Figure 1-6 During operation, the casting barrel body 1 is first moved to the desired position via the lifting platform 26, and the position of the discharge nozzle of the casting barrel body 1 is adjusted. Then, the motor 21 is started, which drives the worm gear 22 to rotate. The worm gear 22 drives the worm wheel 23 to rotate, the worm wheel 23 drives the transmission shaft to rotate, the transmission shaft drives the winding wheel 24 to rotate, and the winding wheel 24 drives the steel cable 25. The steel cable 25 is wound around the winding wheel 24, and the steel cable 25 drives the first moving column 2 and the second moving column 7 to rise along the first limiting arc plate 3 and the second limiting arc plate 6. The first moving column 2 and the second moving column 7 drive the limiting plate 8 to rotate, the limiting plate 8 drives the sliding plate 11 to slide, and the sliding plate 11 drives the slider 14 to slide into the limiting frame 13. The slider 14 drives the compression spring 15 to compress and simultaneously drives the stop rod 19 to slide. At this time, the tension spring 20 is stretched, and after the stop rod 19 slides out from the stop block 17, the stop block 17 slides into the insertion hole 16. When the first moving column 2 Or, after the second moving column 7 stops driving the limiting plate 8 to rotate, the compression spring 15 returns to its original position. The compression spring 15 drives the slider 14 to move, and the stop block 17 is fully inserted into the insertion hole 16, so that the relative position between the slider 14 and the limiting frame 13 is fixed. At this time, the slide plate 11 cannot move. The first moving column 2 and the second moving column 7 drive the casting barrel body 1 to rotate around the discharge nozzle on the casting barrel body 1, pouring the high-temperature molten metal into the required position. When the steel cable 25 breaks, causing the casting barrel body 1 to fall, the limiting plate 8 and the slide plate 11 support the first moving column 2 and the second moving column 7 to prevent the casting barrel body 1 from falling and reduce the damage caused. If no problem occurs, the stop rod 19 is manually pulled to stretch the tension spring 20, and then the stop block 17 is pulled out from the insertion hole 16. The stop rod 19 is released so that the stop rod 19 passes through the stop block 17. At this time, the first moving column 2 and the second moving column 7 can fall.

[0037] The foregoing has only described certain exemplary embodiments of the present invention by way of illustration. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the foregoing drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

[0038] Finally, the following points should be noted: First, in the description of this application, unless otherwise specified and limited, the terms "installation", "connection" and "linkage" should be interpreted broadly, and can be mechanical or electrical connection, or internal connection between two components, or direct connection. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationship. When the absolute position of the described object changes, the relative positional relationship may change.

[0039] Secondly, the accompanying drawings of the embodiments disclosed in this invention only involve the structures involved in the embodiments disclosed in this invention. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this invention can be combined with each other.

[0040] Finally, the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A casting apparatus for ductile iron, comprising a casting tank body, characterized in that: Both sides of the outer periphery of the casting barrel body are fixedly connected to a first movable column. A first limiting arc plate is slidably connected to the outside of the first movable column. An R-shaped support is fixedly connected to the outer wall of the first limiting arc plate away from the casting barrel body. The top of the R-shaped support is provided with a tilting structure. A second limiting arc plate is fixedly connected to the R-shaped support near the casting barrel body. A second movable column is slidably connected inside the second limiting arc plate. The second movable column is fixedly connected to one side of the bottom of the casting barrel body. Multiple limiting plates are rotatably connected inside the first and second limiting arc plates. A torsion spring is provided on one side of the outer wall of each limiting plate. One end of the torsion spring is fixedly connected to the limiting plate, and the other end of the torsion spring is fixedly connected to the first or second limiting arc plate. A prevention structure is provided on one side of the outer wall of the first and second limiting arc plates. The prevention structure includes a sliding plate that passes through and slidably connects to one side of the outer wall of the first and second limiting arc plates. A positioning block is fixedly connected to one side of the outer wall of the first and second limiting arc plates. A limiting frame is fixedly connected to one side of the outer wall of the positioning block. A slider is slidably connected inside the limiting frame. The slider is fixedly connected to the sliding plate. Two compression springs are fixedly connected to the side of the slider away from the sliding plate. The end of the compression spring away from the slider is fixedly connected to the limiting frame. An insertion hole is opened at the top of the slider. The insertion hole passes through the top of the limiting frame. A stop block is slidably connected inside the insertion hole. Two limiting rods pass through and slidably connect inside the stop block. A stop rod passes through the side of the limiting frame away from the sliding plate. The stop rod is slidably connected to the stop block. A tension spring is fixedly connected to the side of the limiting frame away from the slider. The end of the tension spring away from the limiting frame is fixedly connected to the stop rod. The tilting structure includes four symmetrically distributed motors fixedly connected to the top of the R-shaped support. A worm gear is fixedly connected to the top of the motor output shaft, and a worm wheel meshes with the bottom of the worm gear. A transmission shaft is fixedly connected inside the worm wheel. The transmission shaft passes through the R-shaped support and is rotatably connected to the R-shaped support. A winch is fixedly connected to the end of the transmission shaft away from the worm wheel. Steel cables are fixedly connected to the outer circumference of the two first moving columns and both ends of the second moving column. The four steel cables are fixedly connected to the four winches respectively. The top and bottom surfaces of the skateboard and the limiting plate, which are close to each other, are chamfered. The centers of both the first and second limiting arc plates coincide with the discharge nozzle on the casting barrel body.

2. The ductile iron casting apparatus according to claim 1, characterized in that: The bottom of the two R-shaped support bodies is fixedly connected to a lifting platform with casters.

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