Ferroalloy casting machine multi-track switching mold turning device and batch casting molding method

Abstract

The present invention provides a multi-track switching mold turning device and a batch casting method for an ferroalloy casting machine, and belongs to the technical field of ferroalloy casting. It includes a casting mold assembly, a track assembly, a frame and a driving mechanism. The driving mechanism drives the frame to drive the casting mold assembly to move. The track assembly includes four track seats and a track five; when the lifting assembly drives the track seat two to be in the lower position, the mold moves horizontally; when the lifting assembly drives the track seat two to be in the upper position, the mold is made to change its state on the track assembly to be parallel to the ground, to be at an obtuse angle to the ground, and to be restored to be parallel to the ground. The multi-track switching mold turning device of the present invention can realize the free choice of whether to turn the mold. When turning the mold, after the mold is turned over at the specified position, it resets and continues to run. When not turning the mold, the mold does not change its posture at the specified position; the batch casting molding process can reduce the thermal shock of the molten ferroalloy on the mold by 90%, which greatly improves the service life of the mold.

Description

Technical Field

[0001] The invention belongs to the technical field of ferroalloy casting, and in particular relates to a multi-track switching mold turning device for a ferroalloy casting machine and a batch casting molding method. Background Art

[0002] For existing ferroalloy casting machines, such as linear casting machines and disc casting machines, these two casting machines can realize the flipping of the mold at a specified position, so that the ferroalloy that has been cast in the mold can be flipped out of the mold to complete a casting work. However, the current casting machines cannot realize the choice of whether to flip the mold at a specified position, which limits the improvement of the casting process method. In addition, in the casting process, in order to maintain the output, if the molten ferroalloy of a specified thickness is injected into the mold at one time, a large amount of heat will inevitably be transferred to the mold in a short time. However, the thermal conductivity of the general mold is low, so that the area where the mold contacts the ferroalloy has a very high temperature, while the temperature of the bottom surface of the mold is very low, resulting in a large temperature difference in the mold, thereby generating a large thermal stress, causing the mold to crack or break, greatly shortening the life of the mold and increasing the production cost. In order to solve this problem, the thermal conductivity of the mold can be improved by improving the material properties of the mold, but considering the actual situation, it is difficult to greatly improve the thermal conductivity of the mold under the premise of ensuring the specific heat of the mold. It is difficult to reduce the temperature difference of the mold and balance the mold temperature. Summary of the invention

[0003] In view of this, the present invention aims to propose a multi-track switching mold turning device and a batch casting method for an ferroalloy casting machine. The multi-track switching mold turning device can realize the free choice of whether to turn the mold. When turning the mold, the mold completes the flipping at the specified position and then resets to continue running. When not turning the mold, the mold does not change its posture at the specified position. The batch casting process can reduce the thermal shock of the molten ferroalloy on the mold by 90%, thereby greatly improving the service life of the mold.

[0004] To achieve the above object, the technical solution of the present invention is achieved as follows:

[0005] A multi-track switching mold turning device for an iron alloy casting machine comprises a casting mold assembly, a track assembly, a frame and a driving mechanism, wherein the casting mold assembly comprises a turning rod, an outer bearing seat, an inner bearing seat, a turning shaft and a mold, wherein the two sides of the mold are respectively connected to the inner bearing seat and the outer bearing seat through a turning shaft, wherein the inner bearing seat and the outer bearing seat are fixed to the top of the frame, wherein the turning rod is arranged on one side of the mold, and the middle part of the turning rod is fixedly connected to the turning shaft on the same side, wherein a front track wheel and a rear track wheel for slidingly cooperating with the track assembly are respectively arranged at the front and rear ends of the turning rod; the turning rod is turned to rotate, and the turning rod drives the mold to realize rotational motion on the bearing seat through the turning shaft;

[0006] The driving mechanism drives the frame to drive the casting mold assembly to move, the track assembly is arranged on the periphery of the frame, the track assembly includes a track seat 1, a track seat 2, a track seat 3, a track seat 4 and a track 5, the track seat 1, the track seat 2, the track seat 3 and the track seat 4 are arranged at the opening of the track 5, the track seat 1, the track seat 2, the track seat 3 and the track seat 4 are arranged in sequence along the movement direction of the casting mold assembly, the track seat 1, the track seat 3, the track seat 4 and the track 5 are all fixed structures, the track seat 2 is installed on the lifting assembly, the track seat 1 is provided with a horizontal track, the track seat 2 is provided with a first inclined track, the track seat 3 is provided with a second inclined track and a horizontal reset track, and the track seat 4 is provided with a vertical track, a horizontal flip track and an inclined reset track which are connected in sequence along the movement direction of the casting mold assembly;

[0007] When the lifting assembly drives the track seat 2 to the lower position, the first inclined track and the second inclined track are misaligned and not connected, the inlet and outlet of the horizontal track, the upper end surface of the track seat 2 and the upper end surface of the track seat 3 are in the same horizontal plane, and the track wheel on one side of the casting mold assembly moves along the horizontal track, the upper end surface of the track seat 2, the upper end surface of the track seat 3, the lower end surface of the track seat 4 and the track 5 to realize the horizontal movement of the mold;

[0008] When the lifting assembly drives the track seat 2 to the upper position, the first inclined track is connected to the second inclined track, the entrance and exit of the horizontal track, the entrance of the first inclined track, and the exit of the inclined reset track are on the same horizontal line, and the track wheel on one side of the casting mold assembly moves in the horizontal track, the first inclined track, the second inclined track, the horizontal reset track, the vertical track, the horizontal flip track, and the inclined reset track in sequence, so that the mold on the track assembly can achieve state changes of being parallel to the ground, forming an obtuse angle with the ground, and returning to being parallel to the ground.

[0009] Furthermore, the first inclined track is gradually inclined downward from its entrance to its exit, and a cam for supporting the rear wheels of the track is provided directly above the exit of the second inclined track, and the entrance position of the horizontal reset track is higher than the exit position of the second inclined track. The supporting force formed by the cam on the rear wheels of the track causes the rear wheels of the track to be thrown into the entrance of the vertical track, and the entrance position of the vertical track is higher than the entrance position of the first inclined track.

[0010] Furthermore, the track five is an arc track, and the track seat one, track seat two, track seat three and track seat four are sequentially arranged at the opening of the arc track along the movement direction of the casting mold assembly.

[0011] Furthermore, the track five is a linear track, and the track five includes two sections of linear tracks, and the track seat one, track seat two, track seat three and track seat four are sequentially arranged in the gap between the two sections of linear tracks along the movement direction of the casting mold assembly.

[0012] Furthermore, the lifting assembly is a hydraulic cylinder.

[0013] Furthermore, the rack is a complete ring rack formed by connecting a plurality of arc-shaped racks.

[0014] Furthermore, the track assembly is installed on an outer support frame.

[0015] The method for realizing the stepwise casting of ferroalloys by using the multi-track switching mold turning device of the ferroalloy casting machine specifically comprises the following steps:

[0016] Step 1: Set the speed of the casting machine;

[0017] Step 2, the driving mechanism of the casting machine drives the frame to rotate. During the first operation, the molten ferroalloy is cast into the molds passing through the chute mechanism one by one, and the speed of the molten ferroalloy flowing out of the chute mechanism is controlled so that the cast ferroalloy in the mold reaches a certain thickness. When the mold after the first casting is completed runs to the four track seats of the multi-track switching mold turning device, the lifting component is controlled to control the track seat 2 to be in the lower position, so that the mold maintains a horizontal position through the multi-track switching mold turning device, and the ferroalloy stays in the mold and will not be turned over and unloaded;

[0018] During the second operation, the molten iron alloy is cast into the molds passing through the chute mechanism one by one again, and the speed of the molten iron alloy flowing out of the chute mechanism is controlled so that the cast iron alloy in the mold reaches the required thickness. When the molds after the second casting are moved to the four track seats of the multi-track switching mold turning device, the lifting assembly is controlled to control the track seat 2 to be in the upper position, and the four track seats are used to sequentially complete the tipping and unloading of all the molds, and the molds after tipping and unloading are reversed and restored to the horizontal position. When all the molds have completed the second casting, the chute mechanism is stopped from casting the molten iron alloy into the molds.

[0019] Step 3: After the mold has cooled for a period of time, repeat the above process to carry out the next round of ferroalloy casting.

[0020] Furthermore, in step one, the casting machine is a disc casting machine, and the speed of the casting machine is set to 750 seconds per revolution. In step two, during the first operation, the thickness of the cast iron alloy in the mold is 10%-20% of the required thickness, and the speed of the molten iron alloy flowing out of the two control chute mechanisms is related to the thickness ratio of the two cast iron alloys.

[0021] Furthermore, in step 2, after the mold completes the second casting, the flip axis always runs to the right in a horizontal line, and when the track front wheel slides with the horizontal track, the horizontal track causes the mold to move in a horizontal state; when the track front wheel slides with the first inclined track and the second inclined track, the mold gradually tilts forward, and under the action of the cam located above the exit of the second inclined track for supporting the track rear wheel, since the entrance position of the horizontal reset track is higher than the exit position of the second inclined track, the support force formed by the cam on the track rear wheel prevents the mold from rotating counterclockwise, so that the track rear wheel of the mold can be thrown into the entrance of the vertical track; when the track rear wheel contacts the vertical track, the track front wheel moves out of the horizontal reset track, and while the flip axis moves forward, the track rear wheel first moves upward along the vertical track, then moves downward along the vertical track, and then moves into the inclined reset track. When the track rear wheel moves out of the inclined reset track, the mold returns to a horizontal state.

[0022] Compared with the prior art, the multi-track switching mold turning device and the batch casting method of the ferroalloy casting machine described in the present invention have the following beneficial effects:

[0023] (1) For current casting machines, whether they are disc-type or linear-type, when the mold of the casting machine moves along a straight line or an arc to a specified position, the multi-track switching mold turning device described in the present invention is installed to realize the free choice of whether to flip the mold or not. After flipping, the mold can be restored to its original posture and continue to operate. If it is not flipped, the mold maintains its original posture and continues to operate.

[0024] (2) The multi-track switching mold turning device has a compact and reliable structure. It is driven by a hydraulic cylinder to achieve switching between mold turning and non-mold turning, and the switching process is smooth.

[0025] (3) The stepwise casting method of the present invention divides the casting thickness of the ferroalloy of a specified capacity into multiple layers of casting, wherein the first casting thickness is relatively thin and the second casting thickness reaches the casting thickness. In this way, the thermal shock of the molten ferroalloy on the mold can be reduced by about 90%. The number of castings and the casting ratio of each casting can also be adjusted according to actual conditions and process requirements.

[0026] (4) A certain time interval is set between the first casting and the second casting. In this way, after the first casting is completed, the molten ferroalloy can only transfer a small amount of heat to the upper surface of the mold, so that the temperature difference between the upper and lower surfaces of the mold will not be too large. A certain time interval is set between the first casting and the second casting. During this time, the mold with a low thermal conductivity coefficient can be given time for internal heat conduction, making the heat distribution inside the mold more uniform and reducing thermal stress. This time period can also promote the solidification or semi-solidification of at least the surface of the first layer of ferroalloy. During the second casting, the first layer of ferroalloy can play a certain role in isolating heat transfer, reducing the speed at which the heat of the second layer of ferroalloy is transferred to the mold, further avoiding the formation of a large temperature difference in the mold, greatly improving the service life of the mold and reducing production costs.

[0027] (5) Increase the disc speed to ensure that the total casting time of multiple casting cycles remains unchanged and to ensure production. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The accompanying drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the accompanying drawings:

[0029] Figure 1 This is a schematic diagram of the overall structure of a multi-track switching mold turning device for an iron alloy casting machine according to an embodiment of the present invention;

[0030] Figure 2 It is a structural schematic diagram of the track assembly when the track seat 2 according to the embodiment of the present invention is in the upper position;

[0031] Figure 3 It is a structural schematic diagram of the track assembly when the track seat 2 is in the lower position;

[0032] Figure 4 It is a structural schematic diagram of a casting mold assembly;

[0033] Figure 5 Run schematics for the die flip mode of the track assembly;

[0034] Figure 6 Schematic diagram for the mold translation mode operation of the track assembly;

[0035] Figure 7 Field failure diagram of the mold formed by the one-shot casting process;

[0036] Figure 8 This is an on-site failure diagram of the mold of the multiple casting molding method of the present application.

[0037] Description of reference numerals:

[0038] 1. Casting mold assembly; 2. Track assembly; 3. Frame; 4. Driving mechanism; 5. Outer bearing seat; 6. Inner bearing seat; 7. Flip shaft; 8. Mold; 9. Flip rod; 10. Front track wheel; 11. Rear track wheel; 12. Track seat one; 13. Track seat two; 14. Track seat three; 15. Track seat four; 16. Track five; 17. Lifting assembly; 18. Horizontal track; 19. First inclined track; 20. Second inclined track; 21. Horizontal reset track; 22. Vertical track; 23. Horizontal flip track; 24. Inclined reset track; 25. Convex stop; 26. Outer support frame. DETAILED DESCRIPTION

[0039] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely explain the technical solutions in the embodiments of the present invention. It should be noted that the embodiments of the present invention and the features in the embodiments can be combined with each other without conflict, and the described embodiments are only part of the embodiments of the present invention, not all of the embodiments.

[0040] like Figure 1-Figure 6 As shown, a multi-track switching mold turning device for an ferroalloy casting machine includes a casting mold assembly 1, a track assembly 2, a frame 3 and a driving mechanism 4. The casting mold assembly 1 includes a turning rod 9, an outer bearing seat 5, an inner bearing seat 6, a turning shaft 7 and a mold 8. The two sides of the mold 8 are respectively connected to the inner bearing seat 6 and the outer bearing seat 5 through a turning shaft 7. The inner bearing seat 6 and the outer bearing seat 5 are fixed on the top of the frame 3. The turning rod 9 is arranged on one side of the mold 8, and the middle part of the turning rod 9 is fixedly connected to the turning shaft 7 on the same side. A front track wheel 10 and a rear track wheel 11 for slidingly cooperating with the track assembly 2 are respectively arranged at the front and rear ends of the turning rod 9; the turning rod 9 is turned to rotate, and the turning rod 9 drives the mold 8 to realize rotational movement on the bearing seat through the turning shaft 7;

[0041] The driving mechanism 4 drives the frame 3 to drive the casting mold assembly 1 to move. The track assembly 2 is arranged on the periphery of the frame 3. The track assembly 2 is installed on the outer support frame 26. The track assembly 2 includes a track seat 12, a track seat 2 13, a track seat 3 14, a track seat 4 15 and a track 5 16. The track seat 1 12, the track seat 2 13, the track seat 3 14 and the track seat 4 15 are arranged at the opening of the track 5 16. The track seat 1 12, the track seat 2 13, the track seat 3 14 and the track seat 4 15 are arranged in sequence along the movement direction of the casting mold assembly 1. The track seat 1 12, the track seat 3 14, the track seat 4 15 and the track 5 16 are all fixed structures. The track seat 2 13 is installed on the lifting assembly 17. The track seat 1 12 is provided with a horizontal track 18, and the track seat 2 13 is provided with a first inclined track 19. The track seat 3 14 is provided with a second inclined track 20 and a horizontal reset track 21, and the track seat 4 15 is provided with a vertical track 22, a horizontal flip track 23 and an inclined reset track 24 which are connected in sequence along the moving direction of the casting mold assembly 1, and the first inclined track 19 and the second inclined track 20 have the same inclination angle, but the exit section of the second inclined track 20 is a small flat section connected to the horizontal reset track 21; the first inclined track 19 is gradually inclined downward from the entrance to the exit, and a convex stopper 25 for supporting the rear wheel of the track is provided just above the exit section of the second inclined track 20, and the entrance position of the horizontal reset track 21 is higher than the exit position of the second inclined track 20, and the supporting force formed by the convex stopper 25 on the rear wheel of the track causes the rear wheel of the track to be thrown into the entrance of the vertical track 22, and the entrance position of the vertical track 22 is higher than the entrance position of the first inclined track 19;

[0042] When the lifting assembly 17 drives the track seat 2 13 to the lower position, the first inclined track 19 and the second inclined track 20 are misaligned and not connected, the inlet and outlet of the horizontal track 18, the upper end surface of the track seat 2 13 and the upper end surface of the track seat 3 14 are in the same horizontal plane, and the track wheel on one side of the casting mold assembly 1 moves along the horizontal track 18, the upper end surface of the track seat 2 13, the upper end surface of the track seat 3 14, the lower end surface of the track seat 4 15 and the track 5 16 to realize the horizontal movement of the mold 8;

[0043] When the lifting assembly 17 drives the track seat 2 13 to the upper position, the first inclined track 19 is connected to the second inclined track 20, and the entrance and exit of the horizontal track 18, the entrance of the first inclined track 19, and the exit of the inclined reset track 24 are on the same horizontal line. The track wheels on one side of the casting mold assembly 1 move in the horizontal track 18, the first inclined track 19, the second inclined track 20, the horizontal reset track 21, the vertical track 22, the horizontal flip track 23, and the inclined reset track 24 in sequence, so that the mold 8 on the track assembly 2 can achieve state changes of being parallel to the ground, forming an obtuse angle with the ground, and returning to being parallel to the ground.

[0044] The frame 3 is a complete annular frame formed by connecting a plurality of arc frames, the track 5 16 is a circular arc track, and the track seat 1 12, the track seat 2 13, the track seat 3 14 and the track seat 4 15 are sequentially arranged at the opening of the circular arc track along the moving direction of the casting mold assembly 1. Or the track 5 16 is a linear track, and the track 5 16 includes two sections of linear tracks, and the track seat 1 12, the track seat 2 13, the track seat 3 14 and the track seat 4 15 are sequentially arranged at the gap between the two sections of linear tracks along the moving direction of the casting mold assembly 1.

[0045] The lifting assembly 17 is a hydraulic cylinder, and the driving cylinder is designed with a protection lock to ensure stable operation.

[0046] The method for realizing the stepwise casting of ferroalloys by using the multi-track switching mold turning device of the ferroalloy casting machine specifically comprises the following steps:

[0047] Step 1: Set the speed of the casting machine;

[0048] Step 2, the driving mechanism 4 of the casting machine drives the frame 3 to rotate. During the first operation, the molten ferroalloy is cast into the mold 8 passing through the chute mechanism one by one, and the speed of the molten ferroalloy flowing out of the chute mechanism is controlled so that the cast ferroalloy in the mold 8 reaches a certain thickness. When the mold 8 after the first casting is completed runs to the four track seats of the multi-track switching mold turning device, the lifting component 17 is controlled to control the track seat 2 13 to be in the lower position, so that the mold 8 maintains a horizontal position and passes through the four track seats of the multi-track switching mold turning device. The ferroalloy stays in the mold 8 and will not be turned over and unloaded;

[0049] During the second operation, the molten iron alloy is cast into the molds 8 passing through the chute mechanism one by one again, and the speed of the molten iron alloy flowing out of the chute mechanism is controlled so that the cast iron alloy in the mold 8 reaches the required thickness. When the mold 8 after the second casting is completed runs to the four track seats of the multi-track switching mold turning device, the track seat 2 13 is controlled to be in the upper position by controlling the lifting component 17, and the tipping and unloading of all the molds 8 is completed in sequence through the four track seats, and the molds 8 after tipping and unloading are reversed and restored to the horizontal position. When all the molds 8 complete the second casting, the chute mechanism stops casting the molten iron alloy into the mold 8;

[0050] Step 3: After the mold 8 cools down for a period of time, the above process is repeated to perform the next round of ferroalloy casting.

[0051] In step one, the casting machine is a disc casting machine, and the speed of the casting machine is set to 750 seconds per revolution. In step two, during the first operation, the thickness of the cast iron alloy in the mold 8 is 10%-20% of the required thickness, and the speed of the molten iron alloy flowing out of the two control chute mechanisms is related to the thickness ratio of the two cast iron alloys.

[0052] In step 2, after the mold 8 completes the second casting, the flip shaft 7 always runs to the right in a horizontal line. When the front wheel of the track slides with the horizontal track 18, the horizontal track 18 moves the mold 8 in a horizontal state; when the front wheel of the track slides with the first inclined track 19 and the second inclined track 20, the mold 8 gradually tilts forward. Under the action of the convex stop 25 located above the exit of the second inclined track 20 for supporting the rear wheel of the track, the entrance position of the horizontal reset track 21 is higher than the exit of the second inclined track 20. The support force formed by the cam 25 on the track rear wheel prevents the mold 8 from rotating counterclockwise, so that the track rear wheel of the mold 8 can be thrown into the entrance of the vertical track 22; when the track rear wheel contacts the vertical track 22, the track front wheel moves out from the horizontal reset track 21, and while the flip shaft 7 moves forward, the track rear wheel first moves upward along the vertical track 22, then moves downward along the vertical track 22, and then moves into the inclined reset track 24. When the track rear wheel moves out from the inclined reset track 24, the mold 8 returns to a horizontal state.

[0053] Here is a specific example:

[0054] The disc casting machine has a total of 50 molds. The required thickness of the cast iron alloy is 70mm. The direction of rotation of the disc is clockwise.

[0055] The batch casting method is as follows: the rotation speed of the disc casting machine is set to 750 seconds per circle, so it can rotate twice within 1500 seconds. At this time, the time for the chute mechanism to pass through a mold is 15 seconds. During the first circle of operation, the speed of the molten iron alloy flowing out of the chute mechanism is controlled to be 1.5L / min. At this time, the molten iron alloy flowing out of the chute mechanism needs 15 seconds to complete the casting of a mold. The thickness of the cast iron alloy is 14mm, and then continue to cast the next mold. The casting thickness of each mold is 14mm; when the mold after casting is moved to the four track seats of the multi-track switching mold turning device, due to the running time The ferroalloy in the mold is not completely solidified. At this time, the control track seat 2 is in the lower position, the first inclined track 19 and the second inclined track 20 are misaligned and not connected, the inlet and outlet of the horizontal track 18, the upper end surface of the track seat 2 13 and the upper end surface of the track seat 3 14 are in the same horizontal plane, and the two track wheels of the casting mold assembly 1 move along the horizontal track 18, the upper end surface of the track seat 2 13, the upper end surface of the track seat 3 14, the lower end surface of the track seat 4 15 and the track 5 16 to realize the horizontal movement of the mold 8, that is, the mold can maintain a horizontal position through the tipping unloading device, and the ferroalloy stays in the mold and will not be turned over for unloading;

[0056] When the second round of casting is carried out, the speed of the molten ferroalloy flowing out of the chute mechanism is controlled to be 6L / min. At this time, the molten ferroalloy flowing out of the chute mechanism also needs 15 seconds to complete the casting of a mold. The thickness of the cast ferroalloy is 56mm. At this time, the casting of 70mm thickness is completed. When all molds have completed the casting of 70mm, the chute mechanism will no longer cast the next mold; when the first mold that has completed the casting of 70mm thickness in the disc casting machine passes through the four track seats of the multi-track switching mold turning device, the track seat is placed in the upper position, and then the tipping and unloading of all molds are completed in sequence through the four track seats, specifically: the turning shaft 7 always runs to the right in a horizontal line, and when the track front wheel slides with the horizontal track 18, the horizontal track 18 makes the mold 8 move in a horizontal state; when the track front wheel is in contact with the first tilting When the track 19 and the second inclined track 20 are slidably matched, the mold 8 gradually tilts forward. Under the action of the cam 25 located above the exit of the second inclined track 20 for supporting the track rear wheel, since the entrance position of the horizontal reset track 21 is higher than the exit position of the second inclined track 20, the support force formed by the cam 25 on the track rear wheel prevents the mold 8 from rotating counterclockwise, so that the track rear wheel of the mold 8 can be thrown into the entrance of the vertical track 22; when the track rear wheel contacts the vertical track 22, the track front wheel moves out of the horizontal reset track 21, and while the flip shaft 7 moves forward, the track rear wheel first moves upward along the vertical track 22, then moves downward along the vertical track 22, and then moves into the inclined reset track 24. When the track rear wheel moves out of the inclined reset track 24, the mold 8 returns to a horizontal state.

[0057] After each mold has tipped 150 degrees to unload, it will flip back and return to a horizontal position. The entire flipping and resetting process takes 45 seconds. The mold is then cooled and the above process is repeated, which is the next round of multi-layer casting process.

[0058] By using the multi-casting molding method of the present application to cast iron alloys, the life of the mold is greatly improved, and the life of the mold is increased to more than 3 times the original life, and the failure form is mainly small-area melting pits and small-sized cracks, such as Figure 8 As shown in the figure, the output when the mold is damaged or fails is 8451000kg. Figure 7 As shown, the output when the mold is damaged or fails is 2,784,000 kg; the manufacturing cost of a single mold is about 45,000 yuan. This process improvement is expected to save about 5.5 million yuan in annual costs for each disc casting machine.

[0059] The frame of the present application is a complete annular frame formed by connecting multiple arc-shaped frames. The molds are sequentially installed on the annular frame. Pins are evenly distributed on the inner circumference of the ring to form a pin gear transmission mechanism with the sprocket of the driving mechanism. The sprocket is driven by the motor to rotate, thereby driving the moving part of the entire disc body to move in the circumferential direction. The driving mechanism is an existing structure, and its specific structure and working principle are not described in detail here.

[0060] The chute mechanism includes an insulating shell, an inner tank, carbon bricks and insulating bricks, which are used to receive molten steel and cast the molten steel into the mold. It is an existing structure and its specific structure and working principle will not be described in detail here.

[0061] The embodiments of the present invention disclosed above are only used to help illustrate the present invention. The embodiments do not describe all the details in detail, nor do they limit the invention to the specific implementation methods described. According to the content of this specification, many modifications and changes can be made. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well.

Claims

1. A multi-track switching mold turning device for an iron alloy casting machine. Features: It comprises a casting mold assembly, a track assembly, a frame and a driving mechanism, wherein the casting mold assembly comprises a flip rod, an outer bearing seat, an inner bearing seat, a flip shaft and a mold, wherein the two sides of the mold are respectively connected to the inner bearing seat and the outer bearing seat through a flip shaft, wherein the inner bearing seat and the outer bearing seat are fixed to the top of the frame, wherein the flip rod is arranged on one side of the mold, and the middle part of the flip rod is fixedly connected to the flip shaft on the same side, and a front track wheel and a rear track wheel for slidingly cooperating with the track assembly are respectively arranged at the front and rear ends of the flip rod; the flip rod is turned to rotate, and the flip rod drives the mold to realize rotational motion on the bearing seat through the flip shaft; The driving mechanism drives the frame to drive the casting mold assembly to move, the track assembly is arranged on the periphery of the frame, the track assembly includes a track seat 1, a track seat 2, a track seat 3, a track seat 4 and a track 5, the track seat 1, the track seat 2, the track seat 3 and the track seat 4 are arranged at the opening of the track 5, the track seat 1, the track seat 2, the track seat 3 and the track seat 4 are arranged in sequence along the movement direction of the casting mold assembly, the track seat 1, the track seat 3, the track seat 4 and the track 5 are all fixed structures, the track seat 2 is installed on the lifting assembly, the track seat 1 is provided with a horizontal track, the track seat 2 is provided with a first inclined track, the track seat 3 is provided with a second inclined track and a horizontal reset track, and the track seat 4 is provided with a vertical track, a horizontal flip track and an inclined reset track which are connected in sequence along the movement direction of the casting mold assembly; When the lifting assembly drives the track seat 2 to the lower position, the first inclined track and the second inclined track are misaligned and not connected, the inlet and outlet of the horizontal track, the upper end surface of the track seat 2 and the upper end surface of the track seat 3 are in the same horizontal plane, and the track wheel on one side of the casting mold assembly moves along the horizontal track, the upper end surface of the track seat 2, the upper end surface of the track seat 3, the lower end surface of the track seat 4 and the track 5 to realize the horizontal movement of the mold; When the lifting assembly drives the track seat 2 to the upper position, the first inclined track is connected to the second inclined track, the entrance and exit of the horizontal track, the entrance of the first inclined track, and the exit of the inclined reset track are on the same horizontal line, and the track wheel on one side of the casting mold assembly moves in the horizontal track, the first inclined track, the second inclined track, the horizontal reset track, the vertical track, the horizontal flip track, and the inclined reset track in sequence, so that the mold on the track assembly can achieve state changes of being parallel to the ground, forming an obtuse angle with the ground, and returning to being parallel to the ground.

2. The multi-track switching mold turning device for an ferroalloy casting machine according to claim 1, Features: The first inclined track is gradually inclined downward from its entrance to its exit, and a convex stopper for supporting the rear wheels of the track is provided directly above the exit of the second inclined track, and the entrance position of the horizontal reset track is higher than the exit position of the second inclined track. The supporting force formed by the convex stopper on the rear wheels of the track causes the rear wheels of the track to be thrown into the entrance of the vertical track, and the entrance position of the vertical track is higher than the entrance position of the first inclined track.

3. The multi-track switching mold turning device for ferroalloy casting machine according to claim 1, Features: The track five is a circular arc track, and the track seat one, track seat two, track seat three and track seat four are arranged in sequence at the opening of the circular arc track along the moving direction of the casting mold assembly.

4. The multi-track switching mold turning device for an iron alloy casting machine according to claim 1, Features: The track five is a straight track, and the track five includes two sections of straight tracks. The track seat one, track seat two, track seat three and track seat four are sequentially arranged in the gap between the two sections of straight tracks along the moving direction of the casting mold assembly.

5. The multi-track switching mold turning device for ferroalloy casting machine according to claim 1, Features: The lifting component is a hydraulic cylinder.

6. The multi-track switching mold turning device for an iron alloy casting machine according to claim 3, Features: The frame is a complete ring frame formed by connecting a plurality of arc-shaped frames.

7. The multi-track switching mold turning device for an iron alloy casting machine according to claim 1, Features: The track assembly is mounted on an outer support frame.

8. A method for realizing ferroalloy batch casting by using the multi-track switching mold turning device of the ferroalloy casting machine according to any one of claims 1 to 7, Features: Specifically include the following steps: Step 1: Set the speed of the casting machine; Step 2, the driving mechanism of the casting machine drives the frame to rotate. During the first operation, the molten ferroalloy is cast into the mold passing through the chute mechanism one by one, and the speed of the molten ferroalloy flowing out of the chute mechanism is controlled so that the cast ferroalloy in the mold reaches a certain thickness. When the mold after the first casting is run to the multi-track switching mold turning device, the lifting component is controlled to control the track seat 2 to be in the lower position, so that the mold maintains a horizontal position. After passing through the four track seats of the multi-track switching mold turning device, the ferroalloy stays in the mold and will not be turned over and unloaded; during the second operation, the molten ferroalloy is cast into the mold passing through the chute mechanism one by one again, and the speed of the molten ferroalloy flowing out of the chute mechanism is controlled so that the cast ferroalloy in the mold reaches the required thickness. When the molds that have completed the second casting are moved to the four track seats of the multi-track switching mold turning device, the lifting assembly is controlled to control the track seat 2 to be in the upper position, and the four track seats are used to sequentially complete the tipping and unloading of all the molds, and the molds after tipping and unloading will be reversed and restored to the horizontal position. When all the molds have completed the second casting, the chute mechanism stops casting the molten iron alloy on the molds; Step 3: After the mold has cooled for a period of time, repeat the above process to carry out the next round of ferroalloy casting.

9. A method for realizing ferroalloy batch casting and molding by using a multi-track switching mold turning device of a ferroalloy casting machine according to claim 8, Features: In step one, the casting machine is a disc casting machine, and the speed of the casting machine is set to 750 seconds per revolution. In step two, during the first operation, the thickness of the cast iron alloy in the mold is 10%-20% of the required thickness, and the speed of the molten iron alloy flowing out of the two control chute mechanisms is related to the thickness ratio of the two cast iron alloys.

10. A method for realizing ferroalloy casting in batches by using a multi-track switching mold turning device of a ferroalloy casting machine according to claim 8, Features: In step 2, after the mold completes the second casting, the flip axis always runs to the right in a horizontal line. When the track front wheel slides with the horizontal track, the horizontal track enables the mold to move in a horizontal state; when the track front wheel slides with the first inclined track and the second inclined track, the mold gradually tilts forward. Under the action of the convex stopper located above the exit of the second inclined track for supporting the track rear wheel, since the entrance position of the horizontal reset track is higher than the exit position of the second inclined track, the supporting force formed by the convex stopper on the track rear wheel prevents the mold from rotating counterclockwise, so that the track rear wheel of the mold can be thrown into the entrance of the vertical track; when the track rear wheel contacts the vertical track, the track front wheel moves out of the horizontal reset track, and while the flip axis moves forward, the track rear wheel first moves upward along the vertical track, then moves downward along the vertical track, and then moves into the inclined reset track. When the track rear wheel moves out of the inclined reset track, the mold returns to a horizontal state.

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