Molten iron pouring device for centrifugal casting

Abstract

A molten iron pouring device for centrifugal casting comprises a moving trolley, a supporting table is arranged above the moving trolley, a front-back displacement mechanism is arranged between the supporting table and the moving trolley, a containing tank is arranged above the supporting table, a containing groove is formed in the top end of the containing tank, and lifting mechanisms are arranged on the two sides of the containing tank. A rotating mechanism is arranged between the lifting mechanism and the containing tank, the bottom end of the lifting mechanism is fixed to the top end of the supporting table, a groove is formed in the top end of the containing tank, an unlocking and locking mechanism is arranged at the groove in the top end of the containing tank, and the unlocking and locking mechanism comprises a first guide cylinder and a second guide cylinder. An electric push rod parallel to the sliding rod is arranged between the end, away from the first guide cylinder, of the sliding rod and the first guide cylinder, one end of the electric push rod is fixed to the end of the sliding rod through a fixing plate, and the other end of the electric push rod is fixed to the first guide cylinder through a fixing plate. The device is simple in structure and convenient to use.

Description

Technical Field

[0001] This utility model belongs to the field of centrifugal casting technology, and in particular relates to a centrifugal casting molten iron pouring device. Background Technology

[0002] Centrifugal casting is a technique and method that involves injecting molten metal into a high-speed rotating mold, causing the molten metal to fill the mold and form a casting through centrifugal motion. The molten iron needs to be smelted in a blast furnace. Molten iron is a common name for liquid iron; its composition is elemental iron, and it is liquid iron with a melting point of 1534℃. Molten iron can be poured into a mold, then solidified to create the mold-shaped ironware. Currently, molten iron pouring is generally done by lifting the ladle with a crane. One of the crane's lifting devices lifts the ladle using lifting lugs on both sides. In existing centrifugal casting, a hook is attached to the lower end of a ladle of molten steel. The crane's lifting device lifts the ladle, and then the trolley and crane's traveling mechanisms move the ladle to the casting mold. The lifting hook then rotates the ladle, pouring the molten iron into the mold. However, due to the large size of the crane, it is inconvenient for the operator to adjust the ladle's position. The wire rope pulling the lifting device and hook is prone to swaying, causing molten iron to spill out of the mold during pouring, wasting molten iron and increasing the accident rate. Therefore, in existing centrifugal casting, the ladle is prone to swaying during lifting and position adjustment, resulting in low pouring efficiency. Utility Model Content

[0003] To address the technical problems of inconvenient molten iron pouring and low casting efficiency in existing centrifugal casting, this utility model provides a centrifugal casting molten iron pouring device. The device includes a trolley that can move left and right along an I-beam track laid on the ground. The trolley includes a horizontally positioned base, with two parallel and spaced-apart support beams fixed to the bottom of the base. Both ends of the support beams are equipped with a traveling mechanism that moves along the I-beam track. The traveling mechanism includes a traveling wheel and a traveling motor. The traveling wheel is rotatably mounted on the end of the support beam, and the traveling motor is fixed to the support beam. The power output shaft of the traveling motor is connected to the traveling wheel via a transmission connection. The traveling motor is connected to a power source and a PLC controller via a cable. Starting the traveling motor causes the traveling wheel to move along the I-beam track, thereby moving the trolley to a different position along the I-beam track. A horizontal support platform is installed above the mobile trolley, which provides support. Two symmetrically arranged forward and backward displacement mechanisms are located between the support platform and the mobile trolley. The support platform is mounted on the mobile trolley via the forward and backward displacement mechanisms. The forward and backward displacement mechanisms include a guide rail fixed to the top of the base, a guide slider slidably connected within the guide rail, and a second lead screw within the guide rail. The two ends of the second lead screw are rotatably mounted at the two ends of the guide rail. The guide slider is threadedly connected to the second lead screw. A displacement motor is fixed to one end of the guide rail. The power output shaft of the displacement motor is driven by the second lead screw. The displacement motor is connected to a power source and a PLC controller via a cable. When the displacement motor is started, it drives the second lead screw to rotate. The second lead screw pushes the guide slider to move freely along the guide rail, thereby adjusting the position of the support platform. A placement tank is located above the support platform. The top of the placement tank has an upward-opening placement slot that matches the molten steel ladle. Vertically mounted lifting mechanisms are located on both sides of the placement tank. Each lifting mechanism includes a vertically mounted support plate frame. Two vertically spaced guide rods are fixed to the inner side of the support plate frame. A vertically mounted first lead screw is located between the two guide rods. Both ends of the first lead screw are rotatably mounted on the support plate frame. A lifting motor is fixed to the top of the support plate frame. The power output shaft of the lifting motor is connected to the first lead screw. Support blocks are slidably connected to the guide rods and threadedly connected to the first lead screw. The lifting motor is connected to a power source and a PLC controller via a cable. Starting the lifting motor causes it to push the support blocks vertically via the first lead screw, thereby adjusting the height of the placement tank. A rotating mechanism is provided between the lifting mechanism and the placement tank. The placement tank is mounted on the lifting mechanism via the rotating mechanism. The rotating mechanism includes an L-shaped support frame. A rotating shaft is rotatably mounted on the support frame, and one end of the rotating shaft is fixedly connected to the placement tank. A rotary motor is also fixed on the support frame. The power output shaft of the rotary motor is connected to the rotating shaft. The rotary motor is connected to the power supply and PLC controller via a cable. When the rotary motor is started, it drives the placement tank to rotate at a certain angle through the rotating shaft. This allows the molten steel ladle inside the placement tank to rotate at a certain angle, thus allowing the molten iron inside the ladle to be poured out.The bottom of the lifting mechanism is fixed to the top of the support platform. The top of the placement tank has a U-shaped groove that matches the lifting lugs on both sides of the molten steel ladle. Each groove on the top of the placement tank is equipped with an opening and closing locking mechanism, which includes a first guide cylinder and a second guide cylinder. The first and second guide cylinders are respectively located on the placement tanks on both sides of the groove. A sliding rod is slidably mounted inside the first guide cylinder. An electric actuator parallel to the sliding rod is located between the end of the sliding rod away from the first guide cylinder and the first guide cylinder. One end of the electric actuator is fixed to the end of the sliding rod by a fixing plate, and the other end of the electric actuator is fixed to the end of the sliding rod by a fixing plate. The fixed plate is fixed on the first guide cylinder. The electric actuator is connected to the power supply and PLC controller via a cable. When the electric actuator is started, the free end of the electric actuator extends and pushes the slide rod in the second guide cylinder and the first guide cylinder out of the second guide cylinder. The lifting lugs on both sides of the molten steel ladle can fall from above the placement tank into the groove at the top of the placement tank. After the molten steel ladle has fallen into place, the electric actuator is started again. The free end of the electric actuator retracts and pulls the slide rod along the first guide cylinder into the second guide cylinder. The slide rod acts as a blocking and limiting device for the lifting lugs of the molten steel ladle, preventing the molten steel ladle from falling out of the placement tank when pouring molten iron.

[0004] The above scheme has the following advantages:

[0005] The lifting mechanism allows for adjustment of the ladle's height, and in conjunction with the rotating mechanism, it enables adjustment of the pouring point for molten iron. Compared to the crane's lifting mechanism, which uses wire ropes to pull the ladle and adjust the pouring point, this design improves adjustment efficiency and enhances stability. The forward and backward displacement mechanism facilitates adjustment of the ladle's position on the support platform in the forward and backward directions. The moving trolley facilitates adjustment of its left and right positions. The opening and closing locking mechanism, with its sliding rod acting as a stop and limiter on the ladle's lifting lugs, prevents the ladle from moving out of the placement container during pouring. Attached Figure Description

[0006] Figure 1 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 1 ;

[0007] Figure 2 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 2 ;

[0008] Figure 3 This is a schematic diagram of the main structure of this utility model;

[0009] Figure 4 This is a schematic diagram of the left-side structure of this utility model;

[0010] Figure 5 This is a top view of the structure of this utility model;

[0011] Figure 6 This is a schematic diagram of the lifting mechanism;

[0012] Figure 7 This is a schematic diagram of the forward and backward displacement mechanism.

[0013] Reference numerals: 1. Moving trolley; 2. Support platform; 3. Forward and backward displacement mechanism; 4. Placement tank; 5. Lifting mechanism; 6. Rotating mechanism; 7. Opening and closing locking mechanism; 8. Ladle; 11. Base; 12. Support beam; 13. Walking mechanism; 14. Walking wheel; 15. Walking motor; 31. Guide rail; 32. Second lead screw; 33. Guide slider; 34. Displacement motor; 41. Groove; 51. Support plate frame; 52. Guide rod; 53. First lead screw; 54. Support block; 55. Lifting motor; 61. Support frame; 62. Rotating shaft; 63. Rotating motor; 71. First guide cylinder; 72. Second guide cylinder; 73. Sliding rod; 74. Electric actuator; 81. Lifting lug. Detailed Implementation

[0014] like Figure 1-7As shown, a centrifugal casting molten iron pouring device includes a mobile trolley 1 that can move left and right along an I-beam track laid on the ground. The mobile trolley 1 includes a horizontally arranged base 11. Two parallel and spaced support beams 12 are fixed to the bottom end of the base 11. Both ends of the support beams 12 are provided with a traveling mechanism 13 that moves along the I-beam track. The traveling mechanism 13 includes a traveling wheel 14 and a traveling motor 15. The traveling wheel 14 is rotatably mounted on the end of the support beam 12. The traveling motor 15 is fixed on the support beam 12, and the power output shaft of the traveling motor 15 is connected to the traveling wheel 14 for transmission. The traveling motor 15 is connected to a power supply and a PLC controller through a cable. When the traveling motor 15 is started, it drives the traveling wheel 14 to move along the I-beam track, thereby moving the mobile trolley 1 to a different position along the I-beam track. A horizontal support platform 2 is provided above the mobile trolley 1, which serves as a support. Two symmetrically arranged front-to-back displacement mechanisms 3 are provided between the support platform 2 and the mobile trolley 1. The support platform 2 is assembled onto the mobile trolley 1 through the front-to-back displacement mechanisms 3. The front-to-back displacement mechanism 3 includes a guide rail 31 fixed to the top of the base 11. A guide slider 33 is slidably connected in the guide rail 31, and a second lead screw 32 is provided in the guide rail 31. The two ends of the second lead screw 32 are rotatably assembled at the two ends of the guide rail 31. The guide slider 33 is threadedly connected to the second lead screw 32. A displacement motor 34 is fixed to one end of the guide rail 31. The power output shaft of the displacement motor 34 is driven by the second lead screw 32. The displacement motor 34 is connected to the power supply and PLC controller through a cable. When the displacement motor 34 is started, the displacement motor 34 drives the second lead screw 32 to rotate. The second lead screw 32 pushes the guide slider 33 to move freely along the guide rail 31, thereby adjusting the position of the support platform 2. A placement tank 4 is provided above the support platform 2. The top of the placement tank 4 has a placement slot that matches the ladle 8 and faces upwards. Both sides of the placement tank 4 are provided with vertically arranged lifting mechanisms 5. The lifting mechanism 5 includes a vertically arranged support plate frame 51. Two vertically arranged and spaced guide rods 52 are fixed inside the support plate frame 51. A vertically arranged first lead screw 53 is provided between the two guide rods 52. Both ends of the first lead screw 53 can be rotatably mounted on the support plate frame 51. A lifting motor 55 is fixed at the top of the support plate frame 51. The power output shaft of the lifting motor 55 is connected to the first lead screw 53. A support block 54 is slidably connected to the guide rod 52, and the support block 54 is threadedly connected to the first lead screw 53. The lifting motor 55 is connected to the power supply and PLC controller through a cable. When the lifting motor 55 is started, the lifting motor 55 pushes the support block 54 to move in the vertical direction through the first lead screw 53, thereby adjusting the height of the placement tank 4.A rotating mechanism 6 is provided between the lifting mechanism 5 and the placement tank 4. The placement tank 4 is mounted on the lifting mechanism 5 through the rotating mechanism 6. The rotating mechanism 6 includes an L-shaped support frame 61. A rotating shaft 62 is rotatably mounted on the support frame 61, and one end of the rotating shaft 62 is fixedly connected to the placement tank 4. A rotary motor 63 is also fixed on the support frame 61. The power output shaft of the rotary motor 63 is connected to the rotating shaft 62. The rotary motor 63 is connected to the power supply and PLC controller through a cable. When the rotary motor 63 is started, it drives the placement tank 4 to rotate at a certain angle through the rotating shaft 62, thereby adjusting the rotation of the ladle 8 inside the placement tank 4 to a certain angle and pouring out the molten iron inside the ladle 8. The bottom end of the lifting mechanism 5 is fixed to the top of the support platform 2. The top of the placement tank 4 is provided with a U-shaped groove 41 that matches the lifting lugs 81 on both sides of the ladle 8. Each groove 41 at the top of the placement tank 4 is provided with an opening and closing locking mechanism 7. The opening and closing locking mechanism 7 includes a first guide cylinder 71 and a second guide cylinder 72. The first guide cylinder 71 and the second guide cylinder 72 are respectively located on the placement tank 4 on both sides of the groove 41. A sliding rod 73 is slidably mounted inside the first guide cylinder 71. An electric push rod 74 is provided between the end of the sliding rod 73 away from the first guide cylinder 71 and the first guide cylinder 71, and is parallel to the sliding rod 73. One end of the electric push rod 74 is fixed to the end of the sliding rod 73 by a fixing plate, and the other end of the electric push rod 74 is connected to the first guide cylinder 71. The electric actuator 74 is fixed to the first guide cylinder 71 by a fixing plate. The electric actuator 74 is connected to the power supply and PLC controller through a cable. When the electric actuator 74 is started, the free end of the electric actuator 74 extends and pushes the slide rod 73 in the second guide cylinder 72 and the first guide cylinder 71 to move out of the second guide cylinder 72. The lifting lugs 81 on both sides of the ladle 8 can fall from above the placement tank 4 into the groove 41 at the top of the placement tank 4. After the ladle 8 has fallen into place, the electric actuator 74 is started again. The free end of the electric actuator 74 retracts and pulls the slide rod 73 along the first guide cylinder 71 into the second guide cylinder 72. The slide rod 73 acts as a blocking and limiting device for the lifting lugs 81 of the ladle 8, preventing the ladle 8 from moving out of the placement tank 4 when pouring molten iron.

[0015] Usage process:

[0016] In use, this invention first activates the electric actuator 74, extending its free end and pushing the sliding rod 73 within the second guide cylinder 72 and the first guide cylinder 71 out of the second guide cylinder 72. Then, a crane lifts the ladle 8 using a lifting device and places it into the placement slot on the placement tank 4. The lifting lugs 81 on the ladle 8 fall into the grooves 41 at the top of the placement tank 4. The electric actuator 74 is activated again, retracting its free end and pulling the sliding rod 73 along the first guide cylinder 71 into the second guide cylinder 72. The sliding rod 73 acts as a stop and limiter for the lifting lugs 81 of the ladle 8, preventing the ladle 8 from shifting when the molten iron is poured. Placement tank 4 is removed; then the traveling motor 15 on the moving trolley 1 is started, the traveling motor 15 drives the traveling wheels 14 to move along the traveling track. After the moving trolley 1 moves to the designated position, the lifting motor 55 is started. The lifting motor 55 pushes the support block 54 to move a certain position in the vertical direction through the first lead screw 53. Then the rotary motor 63 is started. The rotary motor 63 drives the placement tank 4 to rotate through the rotating shaft 62, pouring the molten steel in the ladle 8 into the centrifugal mold. After the molten iron in one centrifugal mold is poured, the traveling motor 15 is started again to move the ladle 8 to the next centrifugal mold for pouring.

[0017] In the description of this utility model, it should be understood that the terms "upper", "lower", "left", "right", "top", "bottom", "horizontal", "vertical", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0018] The above embodiments are illustrative of the present invention and are not intended to limit the present invention. Any simple modifications to the present invention are within the protection scope of the present invention.

Claims

1. A centrifugal casting molten iron pouring device, comprising a mobile trolley movable left and right along an I-beam track laid on the ground, a horizontally positioned support platform above the mobile trolley, and two symmetrically arranged forward and backward displacement mechanisms between the support platform and the mobile trolley, the support platform being mounted on the mobile trolley via the forward and backward displacement mechanisms, characterized in that: A placement tank is located above the support platform. The top of the placement tank has a placement groove that matches the ladle and faces upwards. Vertically arranged lifting mechanisms are provided on both sides of the placement tank. A rotating mechanism is provided between the lifting mechanism and the placement tank. The placement tank is mounted on the lifting mechanism through the rotating mechanism, and the bottom end of the lifting mechanism is fixed to the top of the support platform. The top of the placement tank has a U-shaped groove that matches the lifting lugs on both sides of the ladle. An opening and closing locking mechanism is provided in the groove at the top of the placement tank. The opening and closing locking mechanism includes a first guide cylinder and a second guide cylinder. The first guide cylinder and the second guide cylinder are respectively located on the placement tank on both sides of the groove. A sliding rod is slidably mounted inside the first guide cylinder. An electric push rod is provided between the end of the sliding rod away from the first guide cylinder and the first guide cylinder, and is arranged parallel to the sliding rod. One end of the electric push rod is fixed to the end of the sliding rod by a fixing plate, and the other end of the electric push rod is fixed to the first guide cylinder by a fixing plate.

2. The centrifugal casting molten iron pouring device according to claim 1, characterized in that: The mobile trolley includes a horizontally positioned base, with two parallel and spaced-apart support beams fixed to the bottom of the base. Both ends of the support beams are equipped with a traveling mechanism that moves along an I-beam track.

3. The centrifugal casting molten iron pouring device according to claim 2, characterized in that: The traveling mechanism includes traveling wheels and a traveling motor. The traveling wheels are rotatably mounted on the end of the support beam, and the traveling motor is fixed on the support beam. The power output shaft of the traveling motor is connected to the traveling wheels via a transmission.

4. The centrifugal casting molten iron pouring device according to claim 1, characterized in that: The front and rear displacement mechanism includes a guide rail fixed to the top of the base, a guide slider slidably connected inside the guide rail, and a second lead screw inside the guide rail. The two ends of the second lead screw are rotatably mounted on the two ends of the guide rail. The guide slider is threadedly connected to the second lead screw. A displacement motor is fixed to one end of the guide rail, and the power output shaft of the displacement motor is drivenly connected to the second lead screw.

5. The centrifugal casting molten iron pouring device according to claim 1, characterized in that: The lifting mechanism includes a vertically arranged support plate frame. Two vertically arranged and spaced guide rods are fixed on the inner side of the support plate frame. A vertically arranged first lead screw is provided between the two guide rods. Both ends of the first lead screw can be rotatably mounted on the support plate frame. A lifting motor is fixed at the top of the support plate frame. The power output shaft of the lifting motor is connected to the first lead screw. A support block is slidably connected to the guide rod, and the support block is threadedly connected to the first lead screw.

6. The centrifugal casting molten iron pouring device according to claim 1, characterized in that: The rotating mechanism consists of an L-shaped support frame with a rotating shaft mounted on it. One end of the rotating shaft is fixedly connected to the container. A rotating motor is also fixed on the support frame, and the power output shaft of the rotating motor is connected to the rotating shaft.

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