Replaceable flow guide device for molten iron pouring

Abstract

The application relates to the technical field of molten iron ladle flow guide devices, in particular to a replaceable flow guide device for molten iron pouring, which comprises a flow guide pipe body connected with a molten iron ladle, the outer portion of the flow guide pipe body is provided with an anti-blocking mechanism for preventing blockage, the outer portion of the flow guide pipe body is further provided with a sampling structure matched with the anti-blocking mechanism, and the outer portion of the flow guide pipe body is provided with an electric telescopic rod connected with the anti-blocking mechanism on one side; the anti-blocking mechanism comprises a mounting sleeve pipe sleeved on the outer portion of the flow guide pipe body. The replaceable flow guide device for molten iron pouring can break the solidified layer of molten iron through mechanical vibration and reciprocating motion, and can conveniently adjust the knocking position and knocking strength; meanwhile, the molten iron can be sampled during the knocking process. Since the molten iron is in a uniform state stirred by vibration, the chemical composition of the obtained sample better reflects the overall molten iron state, the quality analysis result is more accurate, and the problem of easy blockage of high-temperature molten iron is effectively solved.

Description

Technical Field

[0001] This application relates to the technical field of molten iron ladle guiding devices, and in particular to a replaceable molten iron pouring guiding device. Background Technology

[0002] A ladle is a casting and pouring device used in foundry workshops for pouring molten iron. It receives molten iron in front of the furnace and is then transported by a crane to the mold for pouring. When the ladle is tilted, the molten iron flows out and into the corresponding mold. Modern ladles typically have a spout on the side wall for pouring the molten iron.

[0003] A search revealed that patent document CN212191211U discloses a replaceable molten iron ladle pouring guide device, including a molten iron ladle, which is a hollow cylinder. A flow hole is located on the right side wall of the ladle, and a guide shell is located to the right of the flow hole. This application can heat the molten iron to prevent rapid solidification and allows for the replacement of the flow channel.

[0004] Regarding the aforementioned related technologies, the inventors have discovered at least the following problems: the proposed solution cannot handle sudden stagnation and severe blockages, and its solution is to "heat" to prevent solidification. However, in actual production, the flow of molten iron may suddenly stagnate or form severe blockages in the guide channel due to various reasons such as low tapping temperature, excessive impurities, or excessively long operating intervals. Simple heating cannot break such blockages, and once a severe blockage occurs, the electric heating mesh will be encased in solidified molten iron, and its heat can only be transferred locally, failing to quickly melt the entire solid metal block. At this point, the production process will be forced to stop, and operators must perform emergency handling, which is dangerous and inefficient in high-temperature environments. Therefore, an alternative guide device for molten iron casting is proposed to solve the problems mentioned above. Summary of the Invention

[0005] To address the shortcomings of existing technologies and avoid clogging of the flow channel, this application provides a replaceable flow guiding device for molten iron casting that uses mechanical vibration and reciprocating motion to disrupt the solidified layer of molten iron. This device has advantages such as good anti-clogging effect and solves the problems existing in the aforementioned background technology.

[0006] This application provides a replacement guide device for molten iron casting, which adopts the following technical solution: A replaceable guide device for molten iron casting includes a guide pipe body connected to a molten iron ladle, an anti-blocking mechanism for preventing blockage is provided on the outside of the guide pipe body, a sampling structure for use with the anti-blocking mechanism is also provided on the outside of the guide pipe body, and an electric telescopic rod connected to the anti-blocking mechanism is provided on one side of the outside of the guide pipe body. The anti-blocking mechanism includes an installation sleeve sleeved outside the guide tube body, a reciprocating rod reciprocating inside the installation sleeve, a turntable rotatably mounted outside the installation sleeve, and a transmission component for driving the turntable outside the installation sleeve. A drive component is provided between the turntable and the reciprocating rod. The drive assembly includes a lower slide seat and an upper slide seat disposed below the turntable. An adjusting rod is installed between the lower slide seat and the upper slide seat. An annular wave seat is installed on the bottom side of the turntable. A ball bearing that abuts against the annular wave seat is rotatably installed on the top side of the upper slide seat. A first guide groove is opened inside the lower slide seat. A first guide wheel that rolls with the first guide groove is installed on the outer wall of the reciprocating rod. A magnetic block is installed on one end of the reciprocating rod and on the sampling structure. The sampling structure includes a sampling tube fixed to the side wall of the guide tube body and a piston and guide component disposed on one side of the guide tube body and used in conjunction with the reciprocating rod.

[0007] Optionally: A detachable inner shell is installed on the inner side of the flow guide tube, and connecting flanges for connecting devices are fixed at both the upper and lower ends of the flow guide tube.

[0008] The advantages of adopting the above-mentioned optional solution are: by detachably installing the inner shell on the guide tube, the material of the inner shell can be quickly changed for molten iron with different compositions, avoiding the high cost of replacing the entire guide tube and improving the versatility of the equipment.

[0009] Optionally: The mounting sleeve is provided through at both the upper and lower ends, and the mounting sleeve has an installation hole for mounting the reciprocating rod inside, and a guide sleeve for limiting the movement of the reciprocating rod is fixed in the installation hole.

[0010] The advantages of adopting the above-mentioned optional solution are as follows: the built-in guide sleeve provides a stable and wear-resistant motion channel for the reciprocating rod. First, the guide sleeve can effectively prevent the reciprocating rod from radially shaking or jamming during the movement, ensuring that it can only make smooth linear reciprocating motion along the preset axis. Second, it improves the accuracy and reliability of the movement, reduces the wear between the reciprocating rod and the inner wall of the mounting hole, and extends the service life.

[0011] Optionally: a buffer spring is installed between the end of the guide sleeve and the outer surface of the reciprocating rod, and a sensing block that contacts the outer surface of the guide tube is fixed at the end of the reciprocating rod away from the magnet, and the first guide groove is inclined.

[0012] The advantages of adopting the above-mentioned optional solutions are: pressure sensors can be integrated through the sensing block to monitor the impact force in real time and provide data support for automated control.

[0013] Optionally, the transmission assembly includes a drive motor fixed to the outside of the mounting sleeve, and two meshing transmission gears are installed between the output shaft of the drive motor and the outer surface of the mounting sleeve, wherein the two transmission gears are of different sizes.

[0014] The advantages of adopting the above-mentioned optional scheme are: by using two transmission gears of different sizes that mesh with each other, the drive of the drive motor can be effectively converted into the low speed and high torque output required for the installation of the sleeve, ensuring that the drive process has sufficient force to overcome internal resistance, making the rotation speed more stable and controllable.

[0015] Optionally: The outer surface of the guide tube is provided with a mounting platform for fixing the sampling structure. The mounting platform includes a base plate bolted to the outer surface of the guide tube. A vertical plate is welded to the upper surface of the base plate. The sampling tube is inclined and facing upward. A connecting pipe is installed between the end of the sampling tube and the piston.

[0016] The advantages of adopting the above-mentioned optional scheme are: the inclined pipeline can prevent molten iron from remaining or solidifying in the sampling tube. Even if a small amount of molten iron flows in and solidifies, its inclination angle makes it easy to fall off naturally by tapping the anti-blocking mechanism, reducing the frequency of manual cleaning.

[0017] Optionally: The connecting pipe is internally equipped with a valve, and the valve is externally equipped with an opening and closing component that cooperates with the lifting and lowering of the mounting sleeve. The opening and closing component includes a rotating shaft fixed to one side of the valve, and a drive gear is fixed to the other end of the rotating shaft. The drive gear is externally engaged with an abutment tooth plate that intermittently abuts against the bottom side of the mounting sleeve.

[0018] The advantages of adopting the above-mentioned optional solution are: converting the linear lifting motion of the installation sleeve into the rotational motion of the valve, thereby realizing the automatic opening and closing of the pipeline, eliminating the need to configure a separate drive device for the valve, simplifying the overall structure and reducing costs.

[0019] Optionally: The piston assembly includes a plug cylinder fixed to the upper surface of the base plate, a piston reciprocatingly disposed inside the plug cylinder, a plug rod extending to the outside of the plug cylinder and connected to the guide fixed to the top side of the piston, two check valves fixed to the outer wall of the plug cylinder, one of the check valves having its end connected to the connecting pipe flange, and a first return spring installed between the outer surface of the plug rod and the top side of the plug cylinder.

[0020] The advantages of adopting the above-mentioned optional scheme are: through the mechanical linkage between the stopper rod and the guide, the reciprocating motion of the piston in the stopper cylinder directly drives the intake and discharge of molten iron, converting the horizontal motion of the anti-blocking mechanism into the vertical motion of the piston, without the need for an additional power source, thus achieving synchronous drive of anti-blocking and sampling.

[0021] Optionally: The guide includes a horizontal plate slidably mounted on the outer wall of the vertical plate, a guide plate fixed on one side of the horizontal plate, a magnetic block on the sampling structure mounted on the other side of the horizontal plate, and the magnetic poles of the two magnetic blocks being set with the same pole. The guide also includes a shaft fixed to the top of the plug rod, a second guide wheel rotatably mounted at the end of the shaft, and a second guide groove is provided inside the guide plate to roll and cooperate with the second guide wheel, wherein the second guide groove is wavy.

[0022] The advantages of adopting the above-mentioned optional scheme are: by using the magnetic blocks on the reciprocating rod and the magnetic blocks on the sampling structure plate through magnetic force, non-contact drive can be achieved, which can avoid wear and jamming problems of mechanical connection, and at the same time ensure the synchronous operation of anti-blocking action and sampling action.

[0023] Optionally: A limiting frame for limiting the sliding seat is fixed on the bottom outer surface of the mounting sleeve. A lubrication structure for lubricating the sliding seat is provided between the bottom outer wall of the mounting sleeve and the limiting frame. The lubrication structure includes an infusion component fixed to the outer wall of the mounting sleeve. The infusion component includes a cylinder fixed to the outer wall of the mounting sleeve. A plug extending outward is slidably disposed inside the cylinder. An abutting block is installed between the plug and the reciprocating rod for abutment engagement. A nozzle is installed outside the limiting frame. Two valve tubes are installed outside the cylinder, and an infusion tube is installed at the end of each valve tube. The two infusion tubes are respectively connected to the nozzle and the reservoir. A second return spring is installed between the side of the plug extending outward from the cylinder and the outer wall of the cylinder.

[0024] The advantages of adopting the above-mentioned optional scheme are: the lubrication structure directly drives the plug to slide in the cylinder through the reciprocating motion of the reciprocating rod. When the reciprocating force of the reciprocating rod is increased by extending the adjusting rod, the motion and lubrication are triggered synchronously, avoiding dry friction between the sliding seat and the guide rail caused by manual operation delay, and significantly reducing the risk of wear.

[0025] In summary, this application includes at least one of the following beneficial technical effects: 1. This invention uses mechanical vibration and reciprocating motion to break up the solidified layer of molten iron. The striking position and striking force can be easily adjusted. At the same time, molten iron can be sampled during the striking process. Since the molten iron is in a uniform state of being vibrated and stirred, the chemical composition of the sample obtained better reflects the overall state of the molten iron, making the quality analysis results more accurate. This ensures the quality of castings from the source and effectively solves the problem of easy blockage of high-temperature molten iron.

[0026] 2. This invention, by adjusting the sliding seat with the adjusting rod, not only increases the reciprocating force of the reciprocating rod, but also simultaneously enhances the force of the guide, thereby increasing the sampling volume of the sampling structure. This ensures that a sufficient amount of sample can still be extracted even under harsh working conditions, avoiding the inability to perform effective component analysis due to insufficient sample volume. It also allows the sampling volume to be automatically adjusted according to needs, while reducing the difficulty of operation and avoiding errors caused by improper adjustment of multiple parameters, enabling rapid sampling operations.

[0027] 3. In this invention, by extending the adjusting rod, the reciprocating force of the reciprocating rod is increased, which will trigger the lubrication structure synchronously and increase the supply of lubricating fluid. At this time, the friction between the sliding seat and the limit frame is intensified. Timely lubrication can avoid dry friction or overheating caused by sudden load changes, significantly reduce the risk of wear, and achieve the advantage of load adaptive lubrication. Attached Figure Description

[0028] Figure 1 This is a cross-sectional view of the structure of this application; Figure 2 This is a structural schematic diagram of the anti-blocking mechanism of this application; Figure 3 This is a structural diagram of a portion of the anti-blocking mechanism of this application; Figure 4 This is a schematic diagram of the structure of the driver component of this application; Figure 5 This is a schematic diagram of the sampling structure of this application; Figure 6 This is a schematic diagram of the piston component of this application; Figure 7 This is a schematic diagram of the overall structure of the lubrication structure of this application; Figure 8 This is a schematic diagram of the infusion device of this application.

[0029] Explanation of reference numerals in the attached figures: 1. Guide tube body; 11. Removable inner shell; 12. Connecting flange; 2. Anti-clogging mechanism; 21. Mounting sleeve; 22. Mounting hole; 23. Reciprocating rod; 24. Drive motor; 25. Turntable; 26. Transmission gear; 27. Annular wave seat; 28. Drive assembly; 281. Lower slide seat; 282. Upper slide seat; 283. Ball bearing; 284. First guide groove; 285. Adjusting rod; 29. ​​Sensing block; 210. Guide sleeve; 211. Buffer spring; 212. Magnetic block; 213. First guide wheel; 3. Electric telescopic rod; 4. Mounting platform; 41. Base plate; 42. Vertical plate; 5. Sampling structure; 5 1. Sampling tube; 52. Piston; 521. Plug cylinder; 522. Piston; 523. Plug rod; 524. Check valve; 525. First return spring; 53. Connecting pipe; 54. Valve; 55. Shaft; 56. Drive gear; 57. Abutment tooth plate; 58. Guide; 581. Horizontal plate; 582. Guide plate; 583. Shaft; 584. Second guide wheel; 585. Second guide groove; 6. Limiting frame; 7. Lubrication structure; 71. Infusion component; 711. Cylinder; 712. Plug block; 713. Valve pipe; 714. Second return spring; 72. Abutment block; 73. Nozzle; 74. Infusion tube. Detailed Implementation

[0030] The following is in conjunction with the appendix Figure 1 - Figure 8 This application will be described in further detail.

[0031] This application discloses a replaceable guide device for molten iron casting.

[0032] Example 1, such as Figure 1 - Figure 4 As shown, a replaceable flow guiding device for molten iron casting includes a flow guiding pipe body 1 connected to the molten iron ladle. A detachable inner shell 11 is installed inside the flow guiding pipe body 1, and connecting flanges 12 for connecting devices are fixed at both the upper and lower ends of the flow guiding pipe body 1. By detachably installing the inner shell 11 onto the flow guiding pipe body 1, the material of the inner shell can be quickly changed for molten iron with different compositions, avoiding the high cost of replacing the entire flow guiding pipe body 1 and improving the versatility of the equipment.

[0033] To achieve the anti-clogging effect, an anti-clogging mechanism 2 is provided on the outside of the guide tube body 1, and an electric telescopic rod 3 connected to the anti-clogging mechanism 2 is provided on one side of the outside of the guide tube body 1. Specifically, the anti-clogging mechanism 2 includes an installation sleeve 21 sleeved on the outside of the guide tube body 1, a reciprocating rod 23 is reciprocating inside the installation sleeve 21, a turntable 25 is rotatably mounted on the outside of the installation sleeve 21, and a transmission assembly for driving the turntable 25 is provided on the outside of the installation sleeve 21. A drive assembly 28 is provided between the turntable 25 and the reciprocating rod 23. The drive assembly 28 includes a lower sliding seat 281 and an upper sliding seat 282 located below the turntable 25. An adjusting rod 285 is installed between the slides 282. The distance between the lower slide 281 and the upper slide 282 can be adjusted by adjusting the adjusting rod 285, which can change the stroke or striking force of the reciprocating rod 23 to adapt to changes in parameters such as molten iron viscosity and flow rate. For example, when the molten iron solidification layer thickens, the striking force can be increased to achieve on-demand anti-blocking and improve the system's adaptability to complex working conditions. An annular wave seat 27 is installed on the bottom side of the turntable 25. A ball bearing 283 that abuts against the annular wave seat 27 is rotatably installed on the top side of the upper slide 282. A first guide groove 284 is opened inside the lower slide 281. A first guide wheel 213 that rolls with the first guide groove 284 is installed on the outer wall of the reciprocating rod 23. The mounting sleeve 21 is designed with its upper and lower ends connected. An mounting hole 22 for mounting the reciprocating rod 23 is provided inside the mounting sleeve 21. A guide sleeve 210, which limits the movement of the reciprocating rod 23, is fixed inside the mounting hole 22. The built-in guide sleeve 210 provides a stable and wear-resistant movement channel for the reciprocating rod 23. Firstly, the guide sleeve 210 effectively prevents the reciprocating rod 23 from radially wobbling or jamming during movement, ensuring that it can only perform smooth linear reciprocating motion along a preset axis. Secondly, it improves the accuracy and reliability of the movement, reduces wear between the reciprocating rod 23 and the inner wall of the mounting hole 22, and extends its service life.

[0034] It should be noted that the guide sleeve 210 is made of wear-resistant material, reducing direct friction between the reciprocating rod 23 and the inner wall of the mounting hole 22, significantly extending the service life of the component. All components are made of high-temperature resistant materials to ensure stable operation in the high-temperature environment of molten iron and avoid functional loss due to material deformation or failure. The electric telescopic rod 3 can be installed on the top outer wall of the guide tube body 1.

[0035] To achieve impact detection, a buffer spring 211 is installed between the end of the guide sleeve 210 and the outer surface of the reciprocating rod 23. A sensing block 29, which contacts the outer surface of the guide tube body 1, is fixed to the end of the reciprocating rod 23 away from the magnet 212. The first guide groove 284 is set at an angle. A pressure sensor can be integrated through the sensing block 29 to monitor the impact force in real time and provide data support for automated control.

[0036] To drive the turntable 25, the transmission assembly includes a drive motor 24 fixed to the outside of the mounting sleeve 21. Two meshing transmission gears 26 are installed between the output shaft of the drive motor 24 and the outer surface of the mounting sleeve 21, with the two transmission gears 26 being of different sizes. By using the two meshing transmission gears 26, the drive from the drive motor 24 can be effectively converted into the low-speed, high-torque output required by the mounting sleeve 21, ensuring sufficient force to overcome internal resistance and making the rotation speed more stable and controllable. The number of reciprocating rods 23 and drive assemblies 28 is not limited and can be adjusted according to requirements.

[0037] Example 2: To improve the anti-blocking effect of tapping, such as... Figure 1 , Figure 5 and Figure 6 As shown, the outside of the guide tube 1 is also provided with a sampling structure 5 for use with the anti-blocking mechanism 2. The sampling structure 5 includes a sampling tube 51 fixed to the side wall of the guide tube 1, a piston 52 and a guide 58 disposed on one side of the guide tube 1 and used in conjunction with the reciprocating rod 23. Specifically, the outer surface of the guide tube 1 is provided with a mounting platform 4 for fixing the sampling structure 5. The mounting platform 4 includes a base plate 41 bolted to the outer surface of the guide tube 1. A vertical plate 42 is welded to the upper surface of the base plate 41. The sampling tube 51 is inclined and upward. A connecting pipe 53 is installed between the end of the sampling tube 51 and the piston 52. A magnetic block 212 is installed on one end of the reciprocating rod 23 and on the sampling structure 5. The inclined pipeline can prevent molten iron from remaining or solidifying in the sampling tube 51. Even if a small amount of molten iron flows in and solidifies, its inclination angle makes it easy to fall off naturally by tapping the anti-blocking mechanism 2, reducing the frequency of manual cleaning.

[0038] The connecting pipe 53 has a valve 54 rotatably mounted inside. The valve 54 has an opening / closing component that works in conjunction with the lifting and lowering of the mounting sleeve 21. This component includes a rotating shaft 55 fixed to one side of the valve 54, and a drive gear 56 fixed to the other end of the shaft 55. The drive gear 56 meshes with an abutment toothed plate 57 that intermittently abuts against the bottom side of the mounting sleeve 21. It should be noted that converting the linear lifting motion of the mounting sleeve 21 into the rotational motion of the valve 54 achieves automatic opening and closing of the pipeline, eliminating the need for a separate drive device for the valve 54, simplifying the overall structure, and reducing costs. A sub-limiting bracket is installed outside the guide pipe body 1 to limit the movement of the abutment toothed plate 57. A spring and locking mechanism can also be installed outside the abutment toothed plate 57 to ensure its normal reciprocating motion.

[0039] Furthermore, through the cooperation of the abutment toothed plate 57 and the drive gear 56, the lifting motion of the mounting sleeve 21 is converted into the rotational motion of the valve 54, thereby realizing the automatic opening and closing of the pipeline. This improves sampling efficiency, ensuring that the sampling structure 5 only opens the valve 54 and performs sampling when the anti-blocking mechanism 2 is activated; when the anti-blocking stops, the valve 54 automatically closes. This avoids human error and prevents air from entering or molten iron from solidifying in the pipeline during non-sampling periods.

[0040] To achieve sampling, the piston component 52 includes a plug cylinder 521 fixed to the upper surface of the base plate 41. A piston 522 is reciprocating inside the plug cylinder 521. A plug rod 523 extending to the outside of the plug cylinder 521 and connected to the guide member 58 is fixed to the top side of the piston 522. Two check valves 524 are fixed to the outer wall of the plug cylinder 521, one of which is connected at its end to the flange of the connecting pipe 53. A first return spring 525 is installed between the outer surface of the plug rod 523 and the top side of the plug cylinder 521. Through the mechanical linkage between the plug rod 523 and the guide member 58, the reciprocating motion of the piston 522 within the plug cylinder 521 directly drives the intake and discharge of molten iron, converting the horizontal motion of the anti-blocking mechanism 2 into the vertical motion of the piston 522. This eliminates the need for an additional power source, achieving synchronous driving of anti-blocking and sampling.

[0041] To achieve simultaneous use of tapping and sampling, the guide 58 includes a horizontal plate 581 slidably mounted on the outer wall of the vertical plate 42. A guide plate 582 is fixed to one side of the horizontal plate 581. Magnetic blocks 212 on the sampling structure 5 are mounted on the other side of the horizontal plate 581, with the magnetic poles of the two magnetic blocks 212 being set to the same polarity. The guide 58 also includes a shaft 583 fixed to the top of the stopper rod 523. A second guide wheel 584 is rotatably mounted at the end of the shaft 583. A second guide groove 585 is formed inside the guide plate 582, which rolls with the second guide wheel 584. The second guide groove 585 is wavy. By utilizing the magnetic force between the magnetic blocks 212 on the reciprocating rod 23 and the magnetic blocks 212 on the horizontal plate 581 of the sampling structure, non-contact driving is achieved, avoiding wear and jamming problems in mechanical connections, while ensuring synchronous operation of the anti-blocking action and the sampling action.

[0042] It should be noted that by adjusting the sliding seat 281 via the adjusting rod 285, the reciprocating force of the reciprocating rod 23 is increased. Simultaneously, the force of the guide 58 is enhanced, thereby increasing the sampling volume of the sampling structure 5. This ensures that a sufficient amount of sample can still be extracted even under harsh working conditions, avoiding the inability to perform effective component analysis due to insufficient sample volume. The sampling volume is automatically adjusted according to demand, always obtaining a sufficient and representative sample. Furthermore, it reduces operational difficulty, avoids errors caused by improper adjustment of multiple parameters, and enables rapid sampling operations.

[0043] Example 3: To further improve the striking effect, such as... Figure 1 , Figure 7 and Figure 8 As shown, a limiting frame 6 for limiting the sliding seat 281 is fixed to the bottom outer surface of the mounting sleeve 21. A lubrication structure 7 for lubricating the sliding seat 281 is provided between the bottom outer wall of the mounting sleeve 21 and the limiting frame 6. The lubrication structure 7 includes an infusion component 71 fixed to the outer wall of the mounting sleeve 21. The infusion component 71 includes a cylindrical body 711 fixed to the outer wall of the mounting sleeve 21. A plug 712 extending outward is slidably disposed inside the cylindrical body 711. A stop block 72 is installed between the stopper 712 and the reciprocating rod 23 for abutment engagement. A nozzle 73 is installed on the outside of the limiting frame 6. Two valve pipes 713 are installed on the outside of the cylinder 711, and each of the two valve pipes 713 has an infusion pipe 74 installed at its end. The two infusion pipes 74 are connected to the nozzle 73 and the reservoir, respectively. A second return spring 714 is installed between the side of the stopper 712 extending to the outside of the cylinder 711 and the outer wall of the cylinder 711. Specifically, the lubrication structure 7 directly drives the stopper 712 to slide inside the cylinder 711 through the reciprocating motion of the reciprocating rod 23. When the reciprocating force of the reciprocating rod 23 is increased by extending the adjusting rod 285, the motion and lubrication are triggered synchronously, avoiding dry friction between the sliding seat 281 and the guide rail caused by manual operation delay, and significantly reducing the risk of wear.

[0044] It should be noted that the lubrication process is directly driven by the movement of the reciprocating rod 23 and is carried out completely automatically. This avoids production interruptions caused by the operator forgetting to add oil, unreasonable oiling cycles, or stopping the machine for oiling, and ensures the timeliness and consistency of lubrication.

[0045] Combined with appendix Figure 1 - Figure 8 The working principle of the above embodiments is as follows: When the operator starts the system, the electric telescopic rod 3 moves first, moving the entire anti-blocking mechanism 2 outside the guide tube body 1. Then the drive motor 24 starts, driving the turntable 25 and the annular wave seat 27 to rotate through the transmission gear 26. At this time, the ball 283 of the drive component 28 rolls on the wave-shaped track of the annular wave seat 27, forcing the entire upper slide seat 282 and lower slide seat 281 to move up and down. The inclined first guide groove 284 inside the lower slide seat 281 cooperates with the first guide wheel 213 fixed on the reciprocating rod 23. The inclined groove converts the up and down movement of the lower slide seat 281 into the axial horizontal reciprocating movement of the reciprocating rod 23, so that the reciprocating rod 23 moves back and forth in the guide sleeve 210. The sensing block 29 at its end periodically knocks on the outer wall of the guide tube body 1, breaking the solidified layer of molten iron by knocking and preventing blockage. When it is necessary to test the impact effect or observe the molten iron, the anti-blocking mechanism 2 is moved down. After moving down a certain distance, the anti-blocking mechanism 2 first comes into contact with the abutting tooth plate 57. The abutting tooth plate 57 is pressed down and meshes with the drive gear 56, causing the valve 54 to flip. Then, the annular wave seat 27 continues to rotate. Since a magnetic block 212 is installed on the reciprocating rod 23, when it reciprocates, it will attract or repel another magnetic block 212 installed on the horizontal plate 581 of the guide 58 through magnetic force. At this time, the movement of the horizontal plate 581 drives the guide plate 582 on its side to move together. Through the wave-shaped second guide groove 585 inside the guide plate 582, the rolling cooperation between the wave-shaped groove and the second guide wheel 584 causes the stop rod 523 to move up and down, thereby driving the piston 522 to move back and forth in the stop cylinder 521, drawing the molten iron in the guide tube into the preset sample mold. Thus, the automatic and continuous sampling function synchronized with the impact is realized, reducing manual intervention and improving efficiency.

[0046] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A replaceable flow guiding device for molten iron casting, comprising a flow guiding pipe (1) connected to a molten iron ladle, characterized in that: The outside of the guide tube (1) is provided with an anti-blocking mechanism (2) for preventing blockage. The outside of the guide tube (1) is also provided with a sampling structure (5) used in conjunction with the anti-blocking mechanism (2). An electric telescopic rod (3) connected to the anti-blocking mechanism (2) is provided on one side of the outside of the guide tube (1). The anti-blocking mechanism (2) includes an installation sleeve (21) sleeved on the outside of the guide tube body (1). A reciprocating rod (23) is reciprocated inside the installation sleeve (21). A turntable (25) is rotatably installed on the outside of the installation sleeve (21). A transmission component for driving the turntable (25) is provided on the outside of the installation sleeve (21). A drive component (28) is provided between the turntable (25) and the reciprocating rod (23). The drive assembly (28) includes a lower slide seat (281) and an upper slide seat (282) disposed below the turntable (25). An adjusting rod (285) is installed between the lower slide seat (281) and the upper slide seat (282). An annular wave seat (27) is installed on the bottom side of the turntable (25). A ball bearing (283) that abuts against the annular wave seat (27) is rotatably installed on the top side of the upper slide seat (282). A first guide groove (284) is provided inside the lower slide seat (281). A first guide wheel (213) that rolls with the first guide groove (284) is installed on the outer wall of the reciprocating rod (23). A magnetic block (212) is installed on one end of the reciprocating rod (23) and on the sampling structure (5). The sampling structure (5) includes a sampling tube (51) fixed on the side wall of the guide tube body (1), a piston (52) and a guide (58) disposed on one side of the guide tube body (1) and used in conjunction with the reciprocating rod (23).

2. The replaceable molten iron casting guide device according to claim 1, characterized in that: The inner side of the guide tube (1) is equipped with a detachable inner shell (11), and both the upper and lower ends of the guide tube (1) are fixed with connecting flanges (12) for connecting devices.

3. The replaceable molten iron casting guide device according to claim 1, characterized in that: The mounting sleeve (21) is provided through at both ends. The mounting sleeve (21) has an installation hole (22) for mounting the reciprocating rod (23) inside. A guide sleeve (210) for limiting the reciprocating rod (23) is fixed inside the installation hole (22).

4. A replaceable flow guiding device for molten iron casting according to claim 3, characterized in that: A buffer spring (211) is installed between the end of the guide sleeve (210) and the outer surface of the reciprocating rod (23). A sensing block (29) is fixed at the end of the reciprocating rod (23) away from the magnetic block (212) and contacts the outer surface of the guide tube body (1). The first guide groove (284) is set in an inclined position.

5. A replaceable flow guiding device for molten iron casting according to claim 1, characterized in that: The transmission assembly includes a drive motor (24) fixed to the outside of the mounting sleeve (21). Two meshing transmission gears (26) are installed between the output shaft of the drive motor (24) and the outer surface of the mounting sleeve (21). The two transmission gears (26) are of different sizes.

6. A replaceable flow guiding device for molten iron casting according to claim 1, characterized in that: The outer surface of the guide tube body (1) is provided with a mounting platform (4) for fixing the sampling structure (5). The mounting platform (4) includes a base plate (41) bolted to the outer surface of the guide tube body (1). A vertical plate (42) is welded to the upper surface of the base plate (41). The sampling tube (51) is inclined and facing upward. A connecting pipe (53) is installed between the end of the sampling tube (51) and the piston (52).

7. A replaceable flow guiding device for molten iron casting according to claim 6, characterized in that: The connecting pipe (53) is rotatably equipped with a valve (54). The valve (54) is equipped with an opening and closing component that is used to lift and lower the mounting sleeve (21). The opening and closing component includes a rotating shaft (55) fixed to one side of the valve (54). The other end of the rotating shaft (55) is fixed with a drive gear (56). The drive gear (56) is meshed with an abutment tooth plate (57) that intermittently abuts against the bottom side of the mounting sleeve (21).

8. A replaceable flow guiding device for molten iron casting according to claim 7, characterized in that: The piston component (52) includes a plug cylinder (521) fixed to the upper surface of the base plate (41). A piston (522) is reciprocating inside the plug cylinder (521). A plug rod (523) extending to the outside of the plug cylinder (521) and connected to the guide (58) is fixed to the top side of the piston (522). Two check valves (524) are fixed on the outer wall of the plug cylinder (521). One of the check valves (524) is connected to the flange of the connecting pipe (53) at its end. A first return spring (525) is installed between the outer surface of the plug rod (523) and the top side of the plug cylinder (521).

9. A replaceable flow guiding device for molten iron casting according to claim 8, characterized in that: The guide (58) includes a horizontal plate (581) slidably mounted on the outer wall of the vertical plate (42), a guide plate (582) fixed on one side of the horizontal plate (581), a magnetic block (212) on the sampling structure (5) is mounted on the other side of the horizontal plate (581), and the magnetic poles of the two magnetic blocks (212) are set with the same pole. The guide (58) also includes a shaft (583) fixed to the top of the plug rod (523), a second guide wheel (584) is rotatably mounted at the end of the shaft (583), and a second guide groove (585) is opened inside the guide plate (582) to roll and cooperate with the second guide wheel (584), wherein the second guide groove (585) is wavy.

10. A replaceable flow guiding device for molten iron casting according to claim 1, characterized in that: The bottom outer surface of the mounting sleeve (21) is fixed with a limiting frame (6) for limiting the sliding seat (281). A lubrication structure (7) for lubricating the sliding seat (281) is provided between the bottom outer wall of the mounting sleeve (21) and the limiting frame (6). The lubrication structure (7) includes an infusion component (71) fixed to the outer wall of the mounting sleeve (21). The infusion component (71) includes a cylinder (711) fixed to the outer wall of the mounting sleeve (21). A plug (712) extending outward is slidably provided inside the cylinder (711). A stop block (72) is installed between the stop block (712) and the reciprocating rod (23) for abutting engagement. A nozzle (73) is installed on the outside of the limiting frame (6). Two valve pipes (713) are installed on the outside of the cylinder (711), and an infusion pipe (74) is installed at the end of each of the two valve pipes (713). The two infusion pipes (74) are respectively connected to the nozzle (73) and the storage tank. A second return spring (714) is installed between the stop block (712) extending to the outside of the cylinder (711) and the outer wall of the cylinder (711).

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