A method for quickly positioning and tipping a ladle for an automatic ferroalloy casting machine

By setting the positioning column behind the ladle and using the clamping mechanism of the centering device, the problems of difficulty in positioning, low efficiency and safety hazards of the ladle are solved, and the rapid, accurate positioning and flipping of the ladle are achieved, and the efficiency and safety of the casting operation are improved.

CN116786805BActive Publication Date: 2025-05-23HARBIN BOSHI AUTOMATION CO LTD
View PDF 1 Cites 0 Cited by

Patent Information

Application Number
CN202210269959.X
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2022-03-18
Publication Date
2025-05-23
Estimated Expiration
2042-03-18

AI Technical Summary

Technical Problem

In the prior art, ladle positioning is difficult, low efficiency and safety risks, especially the positioning accuracy of ladle shape is difficult to ensure.

Method used

By setting the positioning column behind the ladle and clamping the positioning column using the clamping mechanism of the centering device, the fast, accurate positioning and tilting of the ladle is achieved. The method includes lifting the ladle with a lifting device, positioning column clamping and ladle trolley driving the ladle to move to the tipping device, so as to achieve smooth flipping of the ladle and uniform pouring of the material.

Benefits of technology

It realizes the rapid, safe, accurate positioning and flip of the ladle, improves the efficiency of casting operation preparation, reduces the safety risks of manual operation, and is suitable for the positioning of different ladle appearances.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN116786805B_ABST
    Figure CN116786805B_ABST
Patent Text Reader

Abstract

The present invention provides a method for quickly positioning and tipping a ladle for an automatic ferroalloy casting machine, which solves the problem of low casting efficiency caused by the difficulty in positioning the ladle spout before casting and poor automation of the existing ladle. It includes a positioning column provided on the opposite side of the ladle discharge port, and the axis of the positioning column is located on the symmetric plane of the ladle discharge port; step one, hoisting the ladle filled with molten ferroalloy to the top of the ladle trolley by a lifting device, and a distance from the ladle trolley, so that the positioning column is located in the area that can be clamped by the centering device arranged directly behind the ladle trolley; step two, starting the left clamping mechanism and the right clamping mechanism of the centering device to move towards each other, clamping the positioning column to rotate the ladle, and when the distance between the two clamping mechanisms is close to the diameter size of the positioning column, the discharge port of the ladle also reaches the correct required position; step three, the ladle is completely dropped and tipped. The present invention realizes the rapid positioning of the center line of the ladle and the center line of the equipment by synchronously opening and closing the clamping mechanism.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] The invention belongs to the technical field of casting, and in particular relates to a method for quickly positioning and tipping a ladle used in an automatic ferroalloy casting machine. Background Art

[0002] Ladle is an important equipment for smelting and pouring. It is a container for carrying and holding materials from the discharge of the furnace to the pouring process. The main function of the ladle is to receive the materials and part of the slag flowing out of the primary furnace outlet, and to perform partial deoxidation and alloying operations. The materials can be calmed for a period of time in it to adjust the material temperature, uniform composition, and make non-metallic inclusions in the material float. At the same time, during the pouring process, the material flow rate is controlled to ensure smooth pouring.

[0003] After the ladle is filled with materials, the lifting equipment hooks the two trunnions through the hook and transfers them to the designated location. The ladle is manually hooked to adjust its position and posture. During the adjustment process, a positioning block or a centering clamp can be used as an auxiliary positioning. After the adjustment is completed, the ladle is in place, the ladle outlet is aligned in the correct direction, and the lifting ring is pulled upward by another lifting equipment to inject the material from the ladle outlet into the corresponding mold.

[0004] In the above process, when manually adjusting the ladle posture, the distance to the ladle is very close, which poses a great safety risk, and the efficiency of ladle positioning is low. Even with traditional positioning blocks or centering clamps to assist positioning, it cannot provide more accurate positioning. In addition, since different ladles are used under high temperature conditions, the shape of the ladle will change, and even with auxiliary positioning blocks, it is difficult to accurately position.

[0005] Moreover, after long-term use, the shape of the ladle becomes irregular, which makes it difficult to position the ladle, making it difficult to align the ladle outlet with the specified position, and it is very difficult to correct the shape of the ladle. This deformation makes it difficult for traditional positioning blocks or centering clamps to play an auxiliary positioning role.

[0006] Based on the above technical problems, it is urgent to propose a method for quickly positioning and tipping the ladle of an automatic ferroalloy casting machine to meet the needs of quickly and safely completing the preparation work for molten iron pouring. Summary of the invention

[0007] In view of this, the present invention provides a safe, efficient, and accurate positioning and flipping method to address the difficulties of difficult positioning of the ladle in the current smelting industry, low efficiency, and potential safety hazards, so that the discharge port of the ladle can accurately reach the specified position to complete the pouring and pouring of the material.

[0008] To achieve the above object, the technical solution of the present invention is achieved as follows:

[0009] A method for quickly positioning and tipping a ladle of an automatic ferroalloy casting machine comprises the following steps: a positioning column is provided on the opposite side of a ladle discharge port, and the axis of the positioning column is located on the symmetric plane of the ladle discharge port;

[0010] Step 1: hoist the ladle containing molten ferroalloy to the top of the ladle trolley by a lifting device and at a distance from the ladle trolley so that the positioning column is located in the area where the centering device arranged directly behind the ladle trolley can clamp. At this time, the ladle trolley is in the rear position;

[0011] Step 2: Start the left clamping mechanism and the right clamping mechanism of the centering device to move toward each other, clamp the positioning column to rotate the ladle, and when the distance between the left clamping mechanism and the right clamping mechanism is close to the diameter of the positioning column but the positioning column is not clamped, the discharge port of the ladle reaches the required position;

[0012] Step 3: The left and right clamping mechanisms of the centering device move away from each other, and at the same time, the ladle falls onto the ladle trolley; then the lifting device is separated from the ladle;

[0013] Step 4: The ladle trolley drives the ladle to move forward to the front position, so that the ladle trunnion enters the ladle trunnion bayonet;

[0014] Step 5: Start the hydraulic cylinder of the ladle tilting device to push the ladle tilting device to rotate around the rotating shaft of the ladle tilting device, and the ladle tilting device drives the ladle to complete the tilting action, so as to realize the slow and stable casting process of the ferroalloy;

[0015] Step 6: After the molten ferroalloy in the ladle is completely or partially dumped, the ladle tipping device is driven to rotate in the opposite direction and the ladle is placed back on the ladle trolley;

[0016] Step 7: The ladle trolley moves backward to the rear position, and the ladle is lifted away by the lifting device to proceed to the next round of processes.

[0017] Furthermore, the centering device also includes a frame, an anti-collision shield and a driving mechanism, the anti-collision shield includes a left anti-collision shield and a right anti-collision shield symmetrically fixed on opposite sides of the frame, the driving mechanism is installed on the frame, the left clamping mechanism and the right clamping mechanism are both installed on the chain of the driving mechanism, and the driving mechanism drives the left clamping mechanism and the right clamping mechanism to synchronously approach or move away to clamp or release the positioning column located in the middle of the tail of the ladle to rotate the ladle toward the center line of the equipment, so that the ladle mouth is opposite to the opening of the casting pool; when not working, the left clamping mechanism and the right clamping mechanism retreat to the anti-collision shield on the corresponding side.

[0018] Furthermore, the driving mechanism also includes a guide rail assembly, a driving sprocket, a driven sprocket and a motor assembly. The guide rail assembly is a guide rail frame, and a driving shaft and a driven shaft are respectively installed at both ends of the guide rail frame. The driving sprocket is installed on the driving shaft, and the driven sprocket is installed on the driven shaft. The chain is matched with the driving sprocket and the driven sprocket. The motor assembly is installed on the guide rail frame, and the motor assembly drives the driving shaft to rotate. A guide rail is respectively provided on the outer surfaces of two relatively arranged side plates of the guide rail frame. The left clamping mechanism and the right clamping mechanism are respectively matched in the guide rail of the guide rail frame through a running roller mechanism and an anti-impact roller mechanism. The operation of the chain drives the left clamping mechanism and the right clamping mechanism to realize linear synchronous reciprocating motion on the guide rail.

[0019] Furthermore, the left clamping mechanism and the right clamping mechanism have the same structure, both of which are box-shaped structures, and the guide rail frame passes through the box-shaped left clamping mechanism and the right clamping mechanism.

[0020] Furthermore, the chain includes a first chain and a second chain, one end of the first chain is fixedly connected to the middle part of the right clamping mechanism, the other end of the first chain passes through the middle part of the left clamping mechanism and is fixedly connected to the lower part of the left clamping mechanism after engaging with the driven sprocket, one end of the second chain is fixedly connected to the middle part of the right clamping mechanism, the other end of the second chain engages with the driving sprocket and passes through the lower part of the right clamping mechanism and is fixedly connected to the lower part of the left clamping mechanism.

[0021] Furthermore, multiple groups of running roller mechanisms and multiple groups of anti-impact roller mechanisms are respectively arranged on the side surfaces of the box-shaped left clamping mechanism and the right clamping mechanism corresponding to the guide rails.

[0022] Furthermore, two groups of running roller mechanisms and two groups of anti-impact roller mechanisms are symmetrically arranged on each of the clamping mechanisms, and the two groups of anti-impact roller mechanisms are arranged between the two groups of running roller mechanisms.

[0023] Furthermore, the running roller mechanism includes a mounting shaft and a running roller, the mounting shaft is mounted on a corresponding clamping mechanism, and the running roller is fitted in a track.

[0024] Furthermore, the anti-impact roller mechanism comprises an anti-impact wheel and a wheel seat, the anti-impact wheel is mounted on the wheel seat, the wheel seat is mounted on a corresponding clamping mechanism, and the wheel surface of the anti-impact wheel is against the track.

[0025] Furthermore, the centering device is cooperatively mounted on the trolley bracket.

[0026] Compared with the prior art, the method for quickly positioning and tipping a ladle for an automatic ferroalloy casting machine according to the present invention has the following advantages:

[0027] 1. By welding the positioning column behind the ladle, the axis of the positioning column is parallel or coplanar with the symmetric plane of the ladle discharge port. Then the positioning column is clamped by a clamping device. After clamping, no matter what the angle between the positioning column and the horizontal direction is, the direction in which the ladle discharge is aligned is the correct direction; this method has a short process time, high operating efficiency, accurate positioning, and no personnel safety issues.

[0028] 2. After the positioning process is completed, the ladle is lowered to the ladle trolley by the lifting device, and the centering device completes the clamping of the positioning column. The lifting device is withdrawn, and the ladle trolley drives the ladle to move to the ladle flipping device. The device drives the ladle to flip. If the flipping center is located directly above the bottom of the ladle, the ladle will not be able to flip. Therefore, the present application sets the flipping center to be located at a position further forward than the bottom of the ladle to achieve the smooth flipping of the ladle. The flipping device has the function of driving the ladle to flip, and the flipping speed can be controlled. After all the materials are dumped, the flipping device drives the ladle back to the ladle trolley, and the trolley drives the ladle to move to the designated position. The lifting device transports the ladle to other positions for the next material acceptance. This method has the advantages of saving the number of workers, no personnel safety issues, eliminating the lifting device, high work efficiency, accurate discharge port position, uniform material flow speed, and high stability.

[0029] 3. The entire rapid positioning process of the centering device of the present invention is controlled by a program, and the mechanical and electrical systems work together to realize the synchronous opening and closing of the holding mechanism through the operation of the motor, thereby realizing the rapid positioning function of the center line of the ladle and the center line of the equipment. It has the characteristics of ingenious structure and the advantage of high degree of mechanization;

[0030] 4. The present invention ingeniously realizes the circular rotation and positioning movement of the ladle through linear motion, achieves the purpose of rapid positioning of the ladle, saves manpower and labor, and also ensures the correctness of the molten iron flow direction during ladle pouring, thereby improving the efficiency of pouring operation preparation;

[0031] 5. The structural design of the present invention is reasonable, and it is easy to install and disassemble. The operator can use it after simple training, and it is suitable for popularization and use. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] 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:

[0033] Figure 1 It is a schematic diagram of the rapid positioning and tipping process of the ladle used in the ferroalloy automatic casting machine;

[0034] Figure 2 A front view of a centering device according to an embodiment of the present invention;

[0035] Figure 3 A top view of the centering device according to an embodiment of the present invention;

[0036] Figure 4 It is a front view of the centering device after removing the anti-collision shield and the frame according to the embodiment of the present invention;

[0037] Figure 5 A top view of the centering device according to an embodiment of the present invention with the anti-collision shield and the frame removed;

[0038] Figure 6 It is a schematic diagram of the connection between the left clamping mechanism and the right clamping mechanism and the chain;

[0039] Figure 7 A process diagram of correcting the ladle posture by the centering device of the present invention;

[0040] Figure 8 It is a schematic diagram of the process of correcting the posture of the ladle by the centering device of the present invention at another angle.

[0041] Description of reference numerals:

[0042] A. Ladle trolley; B. Centering device; C. Ladle tilting device; D. Ladle trunnion bayonet; E. Hydraulic cylinder; F. Rotating shaft;

[0043] 1. Frame; 2. Left anti-collision shield; 3. Left clamping mechanism; 4. Right clamping mechanism; 5. Driving mechanism; 6. Right anti-collision shield; 7. Driving sprocket; 8. Driven sprocket; 9. Motor assembly; 10. Driving shaft; 11. Driven shaft; 12. Running roller mechanism; 13. Anti-impact roller mechanism; 14. First chain; 15. Second chain; 16. Mounting shaft; 17. Running roller; 18. Anti-impact wheel; 19. Wheel seat; 20. Ladle; 21. Positioning column; 23. Guide rail assembly; 24. Chain. DETAILED DESCRIPTION

[0044] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments may be combined with each other.

[0045] The present invention will be described in detail below with reference to the accompanying drawings and in conjunction with embodiments.

[0046] like Figure 1 As shown, a method for quickly positioning and tipping a ladle of an automatic ferroalloy casting machine comprises the following steps:

[0047] The side wall and bottom of the ladle are multi-layer structures, with a protruding trunnion at each end of the upper part of the side wall, two lifting rings at the lower part of the side wall, and a discharge port at the upper edge of the side wall;

[0048] A positioning column 21 is provided on the opposite side of the ladle discharge port, and the axis of the positioning column 21 is located on the symmetry plane of the ladle discharge port. The outer diameter of the positioning column 21 is 80 mm and the length is 500-600 mm.

[0049] Step 1: Since the lifting device cannot fix the rotation angle of the ladle, there is a certain angle between the ladle positioning column and the front-rear direction, and this angle generally does not exceed ±15 degrees. The ladle 20 containing the molten ferroalloy is hoisted by the lifting device to the top of the ladle trolley A, and the distance from the ladle trolley A is 150mm, so that the positioning column is located in the area that can be clamped by the centering device B arranged directly behind the ladle trolley A. The initial distance between the left clamping mechanism and the right clamping mechanism is sufficient to clamp the positioning column 21. At this time, the ladle trolley A is in the rear position; the lifting device can be a general overhead crane with two hooks;

[0050] Step 2: The initial distance between the left clamping mechanism 3 and the right clamping mechanism 4 is 1300 mm. The left clamping mechanism 3 and the right clamping mechanism 4 of the centering device B are started to move toward each other. The clamping positioning column 21 makes the ladle rotate during the falling process. When the distance between the left clamping mechanism 3 and the right clamping mechanism 4 is 85 mm, the discharge port of the ladle reaches the required position.

[0051] Step 3: The left and right clamping mechanisms of the centering device B move away from each other and are retracted into the left and right anti-collision shields respectively to prevent the ladle 20 from hitting the left and right clamping mechanisms when the ladle is hoisted next time; at the same time, the ladle 20 falls onto the ladle trolley A; then the lifting device is separated from the ladle 20;

[0052] Step 4: The ladle trolley A drives the ladle 20 to move forward to the front position, so that the ladle trunnion enters the ladle trunnion bayonet D;

[0053] Step 5: Start the hydraulic cylinder E of the ladle tilting device C to push the ladle tilting device C to rotate around the rotating shaft F of the ladle tilting device. The ladle tilting device C drives the ladle 20 to complete the tilting action. The speed at which the molten ferroalloy flows out of the ladle discharge port can be controlled by controlling the extension speed of the hydraulic cylinder, thereby realizing a slow and stable casting process of the ferroalloy.

[0054] Step 6: After the molten ferroalloy in the ladle is completely or partially dumped, the ladle tipping device C is driven to rotate in the opposite direction to put the ladle 20 back on the ladle trolley A;

[0055] Step 7: The ladle trolley A moves backward to the rear position, and the ladle 20 is lifted away by the lifting device to proceed to the next round of processes.

[0056] The ladle is hoisted by the lifting device to the top of the trolley. Before the ladle falls onto the trolley, the centering device clamps the positioning column so that the symmetry plane of the discharge port is located on the required plane. During the clamping process of the centering device, the ladle has not completely fallen onto the trolley, so the centering device cannot clamp the positioning column. Then the lifting device drops the ladle to the upper surface of the trolley. At this time, the centering device can be separated to cancel the clamping of the positioning column. At this time, the symmetry plane of the discharge port is located on the required vertical plane. In order to achieve this requirement, the symmetry plane of the trolley is the required symmetry plane, that is, the symmetry plane of the centering device.

[0057] In order to ensure that the axis of the positioning column is coplanar or parallel to the symmetry plane of the discharge port, the positioning column should be re-equipped for the ladle whose deformation increases after a period of use to ensure the accuracy of the ladle positioning.

[0058] like Figure 2-Figure 8 As shown, the centering device B also includes a frame 1, an anti-collision shield and a driving mechanism 5. The anti-collision shield includes a left anti-collision shield 2 and a right anti-collision shield 6 symmetrically fixed on opposite sides of the frame 1. The driving mechanism 5 is installed on the frame 1. The left clamping mechanism 3 and the right clamping mechanism 4 are both installed on the chain 24 of the driving mechanism 5, and the driving mechanism 5 drives the left clamping mechanism 3 and the right clamping mechanism 4 to approach or move away synchronously to clamp or release the positioning column 21 located in the middle of the tail of the ladle 20 to rotate the ladle 20 toward the center line of the equipment, so that the mouth of the ladle 20 is facing the opening of the casting pool; when not working, the left clamping mechanism 3 and the right clamping mechanism 4 retreat to the anti-collision shield on the corresponding side; the anti-collision shield prevents the ladle from shaking and damaging the left clamping mechanism 3 and the right clamping mechanism 4 when the overhead crane is unstable, and the centering device B is installed on the trolley bracket.

[0059] The driving mechanism 5 also includes a guide rail assembly 23, a driving sprocket 7, a driven sprocket 8 and a motor assembly 9. The guide rail assembly 23 is a guide rail frame, and a driving shaft 10 and a driven shaft 11 are respectively installed at both ends of the guide rail frame. The driving sprocket 7 is installed on the driving shaft 10, and the driven sprocket 8 is installed on the driven shaft 11. The chain is matched with the driving sprocket 7 and the driven sprocket 8. The motor assembly 9 is installed on the guide rail frame. The motor assembly 9 drives the driving shaft 10 to rotate. The outer surfaces of the two oppositely arranged side plates of the guide rail frame are respectively provided with a guide rail. The left clamping mechanism 3 and the right clamping mechanism 4 are respectively matched in the guide rail of the guide rail frame through the running roller mechanism 12 and the anti-impact roller mechanism 13. The operation of the chain drives the left clamping mechanism 3 and the right clamping mechanism 4 to realize linear synchronous reciprocating motion on the guide rail.

[0060] The left clamping mechanism 3 and the right clamping mechanism 4 have the same structure, both of which are box-shaped structures, and the guide rail frame passes through the box-shaped left clamping mechanism 3 and the right clamping mechanism 4 .

[0061] The chain 24 includes a first chain 14 and a second chain 15, one end of the first chain 14 is fixedly connected to the middle part of the right clamping mechanism 4, the other end of the first chain 14 passes through the middle part of the left clamping mechanism 3 and is fixedly connected to the lower part of the left clamping mechanism 3 after being engaged with the driven sprocket 8, one end of the second chain 15 is fixedly connected to the middle part of the right clamping mechanism 4, the other end of the second chain 15 passes through the lower part of the right clamping mechanism 4 and is fixedly connected to the lower part of the left clamping mechanism 3 after being engaged with the driving sprocket 7.

[0062] Multiple groups of running roller mechanisms 12 and multiple groups of anti-impact roller mechanisms 13 are respectively arranged on the side surfaces corresponding to the guide rails of the box-shaped left clamping mechanism 3 and the right clamping mechanism 4. Specifically, two groups of running roller mechanisms 12 and two groups of anti-impact roller mechanisms 13 are symmetrically arranged on each of the clamping mechanisms, and the two groups of anti-impact roller mechanisms 13 are arranged between the two groups of running roller mechanisms 12. The running roller mechanism 12 includes a mounting shaft 16 and a running roller 17, the mounting shaft 16 is mounted on the corresponding clamping mechanism, and the running roller 17 is matched in the track. The anti-impact roller mechanism 13 includes an anti-impact wheel 18 and a wheel seat 19, the anti-impact wheel 18 is mounted on the wheel seat 19, the wheel seat 19 is mounted on the corresponding clamping mechanism, and the wheel surface of the anti-impact wheel 18 is against the track. The running roller mechanism 12 is used for the movement of the clamping mechanism, and the anti-impact roller mechanism is used to resist the impact when the ladle collides with the clamping mechanism.

[0063] The left and right clamping mechanisms of the present application are installed on the guide rail assembly through the running roller mechanism and the anti-impact roller mechanism, and the chains are installed on the left and right clamping mechanisms respectively. The chains are driven by the motor assembly and the sprocket to drive the left and right clamping mechanisms to realize synchronous and skewed operation along the guide rail assembly to realize the clamping action, thereby completing the function of rapid positioning of the ladle; specifically, the motor assembly 9 drives the driving shaft 10 to rotate, the driving shaft 10 drives the driving sprocket 7 to rotate, and the chain 24 on the driving sprocket 7 moves, thereby driving the left clamping mechanism 3 and the right clamping mechanism 4 to realize synchronous approach or distance along the guide rail, thereby realizing clamping the positioning column 21 or releasing the positioning column 21. Since the entire process of dropping the ladle is carried out by a crane, the sling of the crane is a flexible mechanism, and it is difficult to avoid the impact on the device caused by the shaking of the ladle. The impact force is mainly borne by the anti-impact roller mechanism and transmitted to the equipment frame by the guide rail assembly.

[0064] When the ladle is suspended by the overhead crane sling, the ladle mouth forms an angle θ with the center line. The left clamping mechanism and the right clamping mechanism of the device move inward synchronously under the action of the motor assembly and the chain. The left and right clamping mechanisms clamp the ladle tail positioning column 21, so that the ladle tail positioning column rotates toward the center line of the equipment to eliminate the angle θ. Therefore, after the ladle falls onto the ladle trolley, the center line of the ladle coincides with the center line of the equipment, ensuring the correct direction of molten iron flow during pouring.

[0065] 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 principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A method for quickly positioning and tipping a ladle for an automatic ferroalloy casting machine, Features: The specific steps include: A positioning column is provided on the opposite side of the ladle discharge port, and the axis of the positioning column is located on the symmetric plane of the ladle discharge port; Step 1: hoist the ladle containing molten ferroalloy to the top of the ladle trolley by a lifting device and at a distance from the ladle trolley so that the positioning column is located in the area where the centering device arranged directly behind the ladle trolley can clamp. At this time, the ladle trolley is in the rear position; Step 2: Start the left clamping mechanism and the right clamping mechanism of the centering device to move toward each other, clamp the positioning column to rotate the ladle, and when the distance between the left clamping mechanism and the right clamping mechanism is close to the diameter of the positioning column but the positioning column is not clamped, the discharge port of the ladle reaches the required position; Step 3: The left and right clamping mechanisms of the centering device move away from each other, and at the same time, the ladle falls onto the ladle trolley; then the lifting device is separated from the ladle; Step 4: The ladle trolley drives the ladle to move forward to the front position, so that the ladle trunnion enters the ladle trunnion bayonet; Step 5: Start the hydraulic cylinder of the ladle tilting device to push the ladle tilting device to rotate around the rotating shaft of the ladle tilting device, and the ladle tilting device drives the ladle to complete the tilting action, so as to realize the slow and stable casting process of the ferroalloy; Step 6: After the molten ferroalloy in the ladle is completely or partially dumped, the ladle tipping device is driven to rotate in the opposite direction and the ladle is placed back on the ladle trolley; Step 7: The ladle trolley moves backward to the rear position, and the ladle is lifted away by the lifting device to proceed to the next round of processes.

2. A method for quickly positioning and tipping a ladle for an automatic ferroalloy casting machine according to claim 1, Features: The centering device also includes a frame (1), an anti-collision shield and a driving mechanism (5), wherein the anti-collision shield includes a left anti-collision shield (2) and a right anti-collision shield (6) symmetrically fixed on opposite sides of the frame (1), the driving mechanism (5) is mounted on the frame (1), the left clamping mechanism (3) and the right clamping mechanism (4) are both mounted on a chain (24) of the driving mechanism (5), and the driving mechanism (5) drives the left clamping mechanism (3) and the right clamping mechanism (4) to move closer or farther synchronously to clamp or release a positioning column (21) located in the middle of the tail of the ladle (20) so that the ladle (20) rotates toward the center line of the equipment, thereby making the mouth of the ladle (20) face the opening of the pouring pool, and when not in operation, the left clamping mechanism (3) and the right clamping mechanism (4) retreat into the anti-collision shield on the corresponding side.

3. A method for quickly positioning and tipping a ladle for an automatic ferroalloy casting machine according to claim 2, Features: The driving mechanism (5) further comprises a guide rail assembly (23), a driving sprocket (7), a driven sprocket (8) and a motor assembly (9); the guide rail assembly (23) is a guide rail frame, a driving shaft (10) and a driven shaft (11) are respectively mounted at both ends of the guide rail frame, a driving sprocket (7) is mounted on the driving shaft (10), and a driven sprocket (8) is mounted on the driven shaft (11); the chain is matched with the driving sprocket (7) and the driven sprocket (8); the motor assembly (9) is installed on the guide rail frame, the motor assembly (9) drives the driving shaft (10) to rotate, and the outer surfaces of the two oppositely arranged side plates of the guide rail frame are respectively provided with a guide rail, and the left clamping mechanism (3) and the right clamping mechanism (4) are respectively matched in the guide rail of the guide rail frame through the running roller mechanism (12) and the anti-impact roller mechanism (13), and the left clamping mechanism (3) and the right clamping mechanism (4) are driven by the operation of the chain to realize linear synchronous reciprocating motion on the guide rail.

4. A method for quickly positioning and tipping a ladle for an automatic ferroalloy casting machine according to claim 3, Features: The left clamping mechanism (3) and the right clamping mechanism (4) have the same structure, both of which are box-shaped structures, and the guide rail frame passes through the box-shaped left clamping mechanism (3) and the right clamping mechanism (4).

5. A method for quickly positioning and tipping a ladle for an automatic ferroalloy casting machine according to claim 3, Features: The chain (24) comprises a first chain (14) and a second chain (15), one end of the first chain (14) is fixedly connected to the middle part of the right clamping mechanism (4), the other end of the first chain (14) passes through the middle part of the left clamping mechanism (3) and is fixedly connected to the lower part of the left clamping mechanism (3) after being meshed with the driven sprocket (8), one end of the second chain (15) is fixedly connected to the middle part of the right clamping mechanism (4), the other end of the second chain (15) passes through the lower part of the right clamping mechanism (4) and is fixedly connected to the lower part of the left clamping mechanism (3) after being meshed with the driving sprocket (7).

6. A method for quickly positioning and tipping a ladle for an automatic ferroalloy casting machine according to claim 5, Features: A plurality of groups of running roller mechanisms (12) and a plurality of groups of anti-impact roller mechanisms (13) are respectively arranged on the side surfaces corresponding to the guide rails of the box-shaped left clamping mechanism (3) and the right clamping mechanism (4).

7. A method for quickly positioning and tipping a ladle for an automatic ferroalloy casting machine according to claim 6, Features: Two groups of running roller mechanisms (12) and two groups of anti-impact roller mechanisms (13) are symmetrically arranged on each of the clamping mechanisms, and the two groups of anti-impact roller mechanisms (13) are arranged between the two groups of running roller mechanisms (12).

8. A method for quickly positioning and tipping a ladle for an automatic ferroalloy casting machine according to claim 6, Features: The running roller mechanism (12) comprises a mounting shaft (16) and a running roller (17); the mounting shaft (16) is mounted on a corresponding clamping mechanism, and the running roller (17) is fitted in a track.

9. A ladle quick positioning and tilting method for an ferroalloy automatic casting machine according to claim 6, Characterized in that: The anti-impact roller mechanism (13) includes an anti-impact wheel (18) and a wheel seat (19). The anti-impact wheel (18) is installed on the wheel seat (19), and the wheel seat (19) is installed on the corresponding clamping mechanism. The wheel surface of the anti-impact wheel (18) abuts within the track.

10. A ladle quick positioning and tilting method for an ferroalloy automatic casting machine according to any one of claims 1-9, Characterized in that: The centering device (B) is cooperatively installed on the trolley support.

Citation Information

Patent Citations

  • Steel ladle rapid positioning device of iron alloy casting machine

    CN116408438A