CN119387572A

CN119387572A - Casting pouring system

Info

Publication number: CN119387572A
Application number: CN202411602929.1A
Authority: CN
Inventors: 田龙; 田政; 王乐; 张光付; 黄丽亚
Original assignee: Xixia Zhongde Automobile Parts Co ltd
Current assignee: Xixia Zhongde Automobile Parts Co ltd
Priority date: 2024-11-11
Filing date: 2024-11-11
Publication date: 2025-02-07

Abstract

The invention discloses a casting pouring system, comprising a casting platform, a track placed on one side of the casting platform, a motor, an air pump arranged at both ends of the casting platform and a control console for controlling the operation of the equipment, and the control console is electrically connected to the air pump and the track. A casting mechanism is arranged on one side of the casting platform, the casting mechanism comprises a nut sleeve, and the nut sleeve is movably connected with a transmission mechanism for transmission, the transmission mechanism comprises a threaded rod, and three mold mechanisms for castings are movably connected on the threaded rod; the bottom of the cover plate of the slag filtering mechanism is connected to the guard plate through a rotating shaft, when inert gas is blown into the ladle, the gas blows the meniscus to drive the guard plate to rotate, and the arc plate unidirectionally blocks the slag under the action of the spring, so that the slag is effectively intercepted in the process of molten metal flowing, the problem that the slag is difficult to separate from the molten metal in the existing equipment is solved, the formation of slag inclusion defects inside the casting is avoided, and the mechanical properties and quality stability of the casting are improved.

Description

Casting pouring system

Technical Field

The invention relates to the technical field of casting pouring, in particular to a casting pouring system.

Background

In the field of casting pouring, the conventional technology faces many challenges and specific development backgrounds, in the past, casting pouring is a key production link in the manufacturing industry, the purpose of which is to inject liquid metal into a casting mold cavity to obtain castings with expected shapes and performances, various metal materials such as cast iron, cast steel, aluminum alloy and the like are widely applied to pouring from the material perspective, different materials have different physicochemical characteristics such as melting point, fluidity, shrinkage and the like, the pouring technology is required to adapt to the characteristics, in the process aspect, early pouring depends on manual operation experience, the key parameters such as pouring speed, temperature, pouring quantity and the like are difficult to accurately control, with the development of industry, the requirements on the quality, precision and consistency of castings are continuously improved, the automatic technology is gradually introduced, the defects caused by human factors are reduced, for example, the pouring speed can be more stably maintained through an automatic pouring system, the density uniformity of the castings is improved, meanwhile, the simulation technology is also continuously developed, the conditions such as air holes, shrinkage and the like in advance in the pouring process are simulated by a computer, and the possible defects such as porosity and the like are predicted, so that the overall production efficiency and the casting yield are improved.

When the existing casting pouring equipment is used, slag is difficult to separate from molten metal effectively, so that the slag is easy to disperse and suspend in the molten metal, slag inclusion defects are easy to form in the casting, mechanical properties and quality stability of the casting are seriously affected, and particularly for the casting with high strength and high precision requirements, the internal defects can cause dangerous conditions such as breakage and the like in the use process of the casting, the automatic slag dragging function is not available, the efficiency of manually dragging slag is extremely low, the rhythm of mass production is difficult to adapt, the timing and degree of dragging slag are difficult to accurately control by manual operation, partial slag is possibly caused to be missed and dragged into a cavity, the accuracy of manually dragging slag is greatly affected by experience and energy of operators, the quality of the casting is easily uneven, the rejection rate is increased, and meanwhile, the labor cost is relatively high, so that the overall production cost of the casting is unfavorable for reduction.

For this purpose, a casting pouring system is proposed.

Disclosure of Invention

The invention aims to provide a casting pouring system, which solves the problems that slag is difficult to effectively separate from molten metal, so that the slag is easy to disperse and suspend in the molten metal and slag inclusion defects are easy to form in the casting when the prior casting pouring equipment is used in the background art.

The technical scheme includes that the casting pouring system comprises a casting platform, a track, a motor, air pumps and control consoles, wherein the track and the motor are arranged on one side of the casting platform, the air pumps are arranged at two ends of the casting platform, the control consoles are in telecommunication connection with the air pumps and the track, one side of the casting platform is provided with a casting mechanism, the casting mechanism comprises a nut sleeve, the nut sleeve is movably connected with a transmission mechanism for transmission, the transmission mechanism comprises a threaded rod, and three die mechanisms for castings are movably connected to the threaded rod;

The mold mechanism comprises a casting ladle and a supporting frame which are fixedly connected to a casting platform, wherein air inlet pipes for air inlet are formed in the two ends of the casting ladle, the air inlet pipes are communicated with an air pump, so that inert gas is blown into a cover plate during casting, a supporting plate is movably connected to the supporting frame and is meshed with a threaded rod, so that a straight rod is driven to lift upwards during rotation, a pouring cup for molten metal to enter is fixedly connected to the supporting plate, an inner pouring channel convenient for casting is formed in the casting ladle, two filter residue mechanisms for fishing residues are movably connected in the casting ladle, and a movable groove matched with the filter residue mechanisms is formed in the casting ladle;

The filter residue mechanism comprises a cover plate fixed at the bottom of a supporting plate, a guard plate is movably connected to the bottom of the cover plate through a rotating shaft, a plurality of semilunar plates which are convenient to blow by gas are fixedly connected to the inside of the guard plate, a plurality of arc plates used for blocking slag unidirectionally are connected to the inside of the guard plate through shaft rods in a rotating mode, and the arc plates are fixedly connected with the semilunar plates through springs.

Preferably, the three straight rods are movably connected with bearing seats, and the bearing seats are fixed on the bottom surface of the casting platform so as to reduce friction force when the straight rods rotate.

Preferably, the ladle is movably connected with a sealing cover for sealing through a hinge, and the sealing cover is also fixedly connected with a handle which is convenient for opening the sealing cover.

Preferably, the casting mechanism comprises a casting trolley, two rotating brackets are fixedly connected to the casting trolley, two hydraulic rods are rotatably connected between the two rotating brackets, a bracket is rotatably connected to the hydraulic rods, a casting cup for containing molten metal is fixedly connected to the inside of the bracket, and the bracket is rotatably connected to one end of the two rotating brackets, so that the hydraulic rods can drive the casting cup to incline to finish casting.

Preferably, the front end of the rotating support is fixedly connected with the nut sleeve through a connecting rod, and the casting trolley is connected to the track through a pulley in a sliding manner, so that the casting trolley is driven to rotate by a motor controlled by a control console to move.

Preferably, the transmission mechanism further comprises an equipment seat and three sections of threaded rods, wherein the three sections of threaded rods are connected with a rotating rod through gear sets at two ends in a transmission mode, three groups of bevel gear sets are arranged on the rotating rod at equal intervals, a straight rod is fixedly connected to the bevel gear sets, and the top end of the straight rod is fixedly connected with the threaded rod so that the rotating rod drives the straight rod to rotate when rotating.

Preferably, the three-section threaded rod is rotatably connected in the equipment seat, and the three-section threaded rod is connected with the nut sleeve through the ball nut pair, so that the three-section threaded rod is rotated when the nut sleeve is meshed with threads on the three-section threaded rod.

Compared with the prior art, the invention has the beneficial effects that:

According to the invention, the bottom of the cover plate of the filter residue mechanism is connected with the guard plate through the rotating shaft, the guard plate is internally provided with structures such as the meniscus and the arc plate, when inert gas is blown into the casting ladle, the gas blows the meniscus to drive the guard plate to rotate, the arc plate blocks slag unidirectionally under the action of the spring, through the ingenious structural design, the slag is effectively intercepted in the flowing process of molten metal, the problem that the slag is difficult to separate from the molten metal in the existing equipment is solved, slag inclusion defect inside a casting is avoided, and the mechanical property and quality stability of the casting are improved;

According to the invention, the three-section threaded rod in the transmission mechanism drives the straight rod and the threaded rod to rotate through the structures such as the gear set and the bevel gear set, so that the supporting plate in the mold mechanism is lifted upwards, inert gas can be blown into the casting ladle of the mold mechanism, and the structures such as the ingate and the pouring cup are arranged, so that molten metal can accurately enter the mold for casting under proper conditions through the cooperation of the transmission mechanism and the mold mechanism, the casting efficiency and the casting accuracy are improved, and various parameters in the casting process can be better controlled, so that the production requirements of different castings can be met;

According to the invention, through the components of the casting trolley, the track, the motor, the air pump, the control console and the like, the control console can control the motor to drive the casting trolley to move, the air pump can blow air into the casting ladle, the hydraulic rod can drive the pouring cup to incline, pouring and other operations can be automatically completed, the automatic design reduces manual operation links, reduces labor cost, simultaneously avoids the problem that manual operation is difficult to accurately control parameters, improves production efficiency, ensures that the production of castings is more stable and efficient, and is beneficial to mass production.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the present invention;

FIG. 2 is a schematic view of the operation of the casting mechanism of the present invention;

FIG. 3 is a schematic view of the position of the transmission mechanism of the present invention;

FIG. 4 is a schematic diagram of the connection between the transmission mechanism and the mold mechanism according to the present invention;

FIG. 5 is a schematic view of the mold mechanism of the present invention in operation;

FIG. 6 is a split view of the mold mechanism of the present invention;

FIG. 7 is a perspective view of the filter residue mechanism of the present invention;

FIG. 8 is a cross-sectional view of the filter residue mechanism of the present invention.

In the figure:

1. Casting platform, 2, rail, 3, motor, 4, air pump, 5, control desk;

6. casting mechanism, 61, casting trolley, 62, rotating bracket, 63, hydraulic rod, 64, bracket, 65, pouring cup, 66, connecting rod, 67, nut sleeve;

7. The device comprises a transmission mechanism, a device seat, a 72, a three-section threaded rod, a 73, a rotating rod, a 74, a gear set, a 75, a bevel gear set, a 76, a bearing seat, a 77, a straight rod, a 78 and a threaded rod;

8. 81 parts of mould mechanism, 82 parts of casting ladle, 82 parts of air inlet pipe, 83 parts of movable groove, 84 parts of hinge, 85 parts of sealing cover, 86 parts of handle, 87 parts of inner pouring gate, 88 parts of pouring cup, 89 parts of supporting frame, 810 parts of supporting plate;

9. 91 parts of filter residue mechanism, 92 parts of cover plate, 92 parts of rotating shaft, 93 parts of guard plate, 94 parts of meniscus, 95 parts of arc plate, 96 parts of spring, 97 parts of shaft lever.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

Referring to fig. 1 to 8, the present invention provides a technical solution of a casting pouring system:

The casting pouring system comprises a pouring platform 1, a track 2, a motor 3, an air pump 4 and a control console 5, wherein the track 2 and the motor 3 are arranged on one side of the pouring platform 1, the air pump 4 and the control console 5 are arranged at two ends of the pouring platform 1, the control console 5 is in telecommunication connection with the air pump 4 and the track 2, one side of the pouring platform 1 is provided with a pouring mechanism 6, the pouring mechanism 6 comprises a nut sleeve 67, the nut sleeve 67 is movably connected with a transmission mechanism 7 for transmission, the transmission mechanism 7 comprises a threaded rod 78, and three die mechanisms 8 for castings are movably connected on the threaded rod 78;

The mold mechanism 8 comprises a casting ladle 81 and a supporting frame 89 which are fixedly connected to the casting platform 1, wherein an air inlet pipe 82 for air inlet is formed at two ends of the casting ladle 81, the air inlet pipe 82 is communicated with an air pump 4, so that inert gas is blown into a cover plate 91 during casting, a supporting plate 810 is movably connected to the supporting frame 89, the supporting plate 810 is meshed with a threaded rod 78, a straight rod 77 drives the supporting plate 810 to lift upwards when rotating, a pouring cup 88 for molten metal is fixedly connected to the supporting plate 810, an inner pouring channel 87 convenient for casting is formed in the casting ladle 81, two residue removing mechanisms 9 for removing residues are movably connected in the casting ladle 81, and a movable groove 83 matched with the residue removing mechanisms 9 is formed in the casting ladle 81;

The filter residue mechanism 9 includes the apron 91 of fixing in backup pad 810 bottom, the bottom of apron 91 has backplate 93 through pivot 92 swing joint, backplate 93's inside fixedly connected with is convenient for by a plurality of semilunar plates 94 of gas blowing, backplate 93's inside is connected with a plurality of arc boards 95 that are used for one-way blocking slag through the axostylus axostyle 97 rotation, and arc boards 95 pass through spring 96 and semilunar plates 94 fixed connection, all swing joint has bearing frame 76 on the three straight-bar 77, and the bearing frame 76 is fixed in the bottom surface of casting platform 1, frictional force when reducing straight-bar 77 rotation, there is the airtight lid 85 that is used for sealedly through hinge 84 swing joint on the ladle 81, and still fixedly connected with is convenient for open the handle 86 of airtight lid 85 on the airtight lid 85.

When the air pump 4 works, inert gas is blown into the casting ladle 81 through the air inlet pipe 82 communicated with the two ends of the casting ladle 81, the blowing device is arranged at the bottom or on the side surface of the casting ladle 81, inert gas (such as argon) is blown into the casting ladle 81, the gas can stir molten metal in the rising process to separate slag from the molten metal, the slag can be gathered on the surface of the molten metal, the blowing stirring can further lead the temperature and the components of the molten metal in the casting ladle 81 to be more uniform, when the air pump 4 blows the inert gas into the casting ladle 81, the gas can be blown into the cover plate 91 after entering the casting ladle 81, the gas can blow the meniscus 94 in the guard plate 93 in the flowing process, the guard plate 93 can drive the guard plate 93 to rotate around the rotating shaft 92 after being blown by the gas because the guard plate 93 is movably connected with the cover plate 91, the inner part of the guard plate 93 is provided with a plurality of menisci 94, the shape and the position of the meniscus 94 are reasonable in design, so that gas can effectively blow the guard plate 93, a plurality of arc plates 95 are rotatably connected inside the guard plate 93 through a shaft rod 97, the arc plates 95 can perform one-way slag blocking action under the action of a spring 96, when slag tries to flow along with molten metal, the arc plates 95 can prevent slag from entering a casting area under the action of the elastic force of the spring 96 and the self structural characteristics, the structural characteristics of the arc plates 95 are that one ends of the arc plates 95 are fixedly connected with the meniscus 94 through the spring 96, the other ends of the arc plates 95 can rotate around the shaft rod 97, the angle of the arc plates 95 can be flexibly adjusted under the action of the spring 96 when the arc plates 95 are impacted by the slag, when the threaded rod 78 rotates, the supporting plates 810 can be lifted upwards under the action of the threaded transmission of the threaded rod 78, the supporting plates 810 are lifted upwards, so that the slag filtering residue mechanisms 9 are pulled out from the inside the casting ladle 81, so that slag entering the interior of the filter residue mechanism 9 is treated, thereby ensuring the purity of the casting molten metal.

As an embodiment of the present invention, as shown in fig. 1 and 2, the casting mechanism 6 includes a casting trolley 61, two rotating brackets 62 are fixedly connected to the casting trolley 61, two hydraulic rods 63 are rotatably connected between the two rotating brackets 62, a bracket 64 is rotatably connected to the hydraulic rods 63, a pouring cup 65 for containing molten metal is fixedly connected to the inside of the bracket 64, and the bracket 64 is rotatably connected to one end of the two rotating brackets 62, so that the hydraulic rods 63 can drive the pouring cup 65 to incline to complete casting, the front ends of the rotating brackets 62 are fixedly connected with a nut sleeve 67 through connecting rods 66, and the casting trolley 61 is slidably connected to the track 2 through pulleys, so that the control console 5 controls the motor 3 to drive the pulleys to rotate to move the casting trolley 61.

When the casting trolley 61 is operated, the control console 5 firstly sends out instructions to start the motor 3, the motor 3 is started, the output power drives the pulley to rotate, the casting trolley 61 is in sliding connection with the track 2 through the pulley, the casting trolley 61 is driven to stably move to a preset casting position along the track 2, after the casting trolley 61 reaches a proper position, the hydraulic rod 63 on the casting trolley 61 starts to operate, the two rotating supports 62 rotate under the driving of the two hydraulic rods 63, the hydraulic rods 63 are rotationally connected with the bracket 64, the pouring cup 65 for containing metal liquid is placed in the bracket 64, the bracket 64 is rotationally connected with one ends of the two rotating supports 62, and under the rotation action of the hydraulic rods 63, the bracket 64 can incline along with the movement of the hydraulic rods 63, so that metal liquid in the pouring cup 65 can be smoothly poured into the pouring ladle 81, and the conveying process of the metal liquid is completed.

As an embodiment of the present invention, as shown in fig. 1, 2, 3, 4, 5 and 6, the transmission mechanism 7 further includes a device seat 71 and three-section threaded rods 72, the three-section threaded rods 72 are connected with a rotating rod 73 through gear sets 74 at two ends, three sets of bevel gear sets 75 are equidistantly arranged on the rotating rod 73, a straight rod 77 is fixedly connected to the bevel gear sets 75, the top end of the straight rod 77 is fixedly connected with a threaded rod 78, so that the rotating rod 73 drives the straight rod 77 to rotate when rotating, the three-section threaded rods 72 are rotatably connected inside the device seat 71, and the three-section threaded rods 72 are connected with the nut sleeve 67 through ball nut pairs, so that the three-section threaded rods 72 rotate when the nut sleeve 67 is meshed with threads on the three-section threaded rods 72.

In operation, gear sets 74 are arranged at two ends of the three-section threaded rod 72, when the nut sleeve 67 moves, the three-section threaded rod 72 can rotate in the equipment seat 71 due to the effect of the ball nut pair, the three-section threaded rod 72 transmits rotation power to the rotating rod 73 through the gear sets 74 at the two ends, three groups of bevel gear sets 75 are arranged on the rotating rod 73 at equal intervals, each bevel gear in the bevel gear sets 75 is precisely meshed with each other, when the rotating rod 73 rotates, the straight rod 77 fixedly connected with the bevel gear sets 75 can rotate along with the rotation of the rotating rod 73, the threaded rods 78 at the top ends of the straight rod 77 synchronously rotate, the bearing seats 76 are movably connected with the bearing seats 76, the friction force when the straight rod 77 rotates is greatly reduced, and due to the fact that the threaded rods 78 are meshed with the supporting plates 810, the supporting plates 810 can be lifted upwards under the action of the thread transmission of the threaded rods 78 when the threaded rods 78 rotate.

Working principle: when in operation, the control console 5 firstly sends out instructions to start the motor 3, the motor 3 starts, the output power drives the pulley to rotate, the casting trolley 61 is in sliding connection with the track 2 through the pulley, so as to drive the casting trolley 61 to stably move to a preset casting position along the track 2, when the casting trolley 61 reaches a proper position, the hydraulic rod 63 on the casting trolley 61 starts to operate, the two rotating brackets 62 rotate under the driving of the two hydraulic rods 63, the hydraulic rods 63 are rotationally connected with the bracket 64, the pouring cup 65 for containing metal liquid is placed in the bracket 64, the bracket 64 is rotationally connected with one ends of the two rotating brackets 62, the bracket 64 inclines along with the movement of the hydraulic rods 63 under the rotation of the hydraulic rods 63, so that the metal liquid in the pouring cup 65 can be smoothly poured into the pouring ladle 81, the conveying process of the molten metal is completed, meanwhile, the air pump 4 is synchronously started, inert gas is blown into the casting ladle 81 through the air inlet pipe 82 communicated with the two ends of the casting ladle 81, a blowing device is arranged at the bottom or on the side surface of the casting ladle 81, the inert gas (such as argon) is blown into the casting ladle 81, the molten metal is stirred in the rising process, slag and the molten metal are separated, the slag can be gathered on the surface of the molten metal, the molten metal temperature and the components in the casting ladle 81 can be more uniform through blowing stirring, when the air pump 4 blows the inert gas into the casting ladle 81, the inert gas is blown into the cover plate 91 after entering the casting ladle 81, the gas blows the meniscus 94 in the protective plate 93 in the flowing process, the protective plate 93 is driven to rotate around the rotating shaft 92 after the meniscus 94 is blown by the gas because the protective plate 93 is movably connected with the cover plate 91 through the rotating shaft 92, the inner part of the guard plate 93 is provided with a plurality of semilunar plates 94, the shape and the position of the semilunar plates 94 are reasonable in design, so that gas can effectively blow the guard plate 93, a plurality of arc plates 95 are rotatably connected to the inner part of the guard plate 93 through a shaft rod 97, the arc plates 95 can perform one-way slag blocking action under the action of a spring 96, when slag tries to flow along with molten metal, the arc plates 95 can prevent slag from entering a casting area under the action of the elastic force of the spring 96 and the structural characteristics of the arc plates 95, one end of each arc plate 95 is fixedly connected with the semilunar plates 94 through the spring 96, and the other end of each arc plate 95 can rotate around the shaft rod 97, and due to the structure, the angle of each arc plate 95 can be flexibly adjusted under the action of the spring 96 when the impact force of the slag is received, so that the slag is better blocked, and the slag can be comprehensively and completely and simultaneously guaranteed The effectual interception and the bailing, guarantee to get into the molten metal of casting region and slag content is as little as possible, improve the quality of foundry goods, because the front end of runing rest 62 realizes fixed connection with the help of connecting rod 66 and nut cover 67, when accomplishing a casting work, the casting dolly 61 begins to move forward, make the inside three-section threaded rod 72 of equipment seat 71 begin to rotate when the screw thread meshing on nut cover 67 and three-section threaded rod 72, the both ends of three-section threaded rod 72 are provided with gear train 74, when nut cover 67 removes, because ball nut pair's effect, three-section threaded rod 72 can be at equipment seat 71 internal rotation, three-section threaded rod 72 passes through gear train 74 at both ends and gives rotating power to bull stick 73, the equidistance is provided with three sets of bevel gear train 75 on the bull stick 73, every bevel gear in the bevel gear train 75 all meshes each other accurately, when bull stick 73 rotates, this accurate meshing relation makes fixed connection's straight-bar 77 can rotate along with the rotation of bull stick 73, the rotation 78 on the straight-bar 77 top also can rotate simultaneously, and all swing joint has bearing frame 76 on the straight-bar 77, the bearing frame 76 is fixed in the bottom surface is at the backup pad 1 when the backup pad 78 has greatly reduced, thereby the inside friction of the backup pad 9 is carried out to the backup pad 810 when the backup pad is moved, thereby the inside friction is carried out to the backup pad 9, the filter cake is moved, the upward, the filter cake is moved, the inside 810 is guaranteed, and the inside the backup pad 9 is moved, and is moved, the backup pad 9, and is moved, thereby the inside 810, and is moved.

Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The casting pouring system comprises a pouring platform (1), a track (2) placed on one side of the pouring platform (1), a motor (3), an air pump (4) arranged at two ends of the pouring platform (1) and a control console (5) used for controlling equipment to operate, wherein the control console (5) is in telecommunication connection with the air pump (4) and the track (2), and the casting pouring system is characterized in that a pouring mechanism (6) is arranged on one side of the pouring platform (1), the pouring mechanism (6) comprises a nut sleeve (67), the nut sleeve (67) is movably connected with a transmission mechanism (7) used for transmission, the transmission mechanism (7) comprises a threaded rod (78), and three die mechanisms (8) used for castings are movably connected on the threaded rod (78);

The mold mechanism (8) comprises a casting ladle (81) and a supporting frame (89) which are fixedly connected to the casting platform (1), an air inlet pipe (82) for air inlet is formed at two ends of the casting ladle (81), the air inlet pipe (82) is communicated with an air pump (4) so that inert gas is blown into a cover plate (91) during casting, the supporting frame (89) is movably connected with a supporting plate (810), the supporting plate (810) is connected with a threaded rod (78) in a meshed manner, so that the supporting plate (810) is driven to be lifted upwards when a straight rod (77) rotates, a pouring cup (88) for molten metal is fixedly connected to the supporting plate (810), an inner pouring channel (87) which is convenient for casting is formed in the casting ladle (81), two filter residue mechanisms (9) for fishing residues are movably connected to the inner part of the casting ladle (81), and movable grooves (83) matched with the filter residue mechanisms (9) are formed in the casting ladle (81);

The filter residue mechanism (9) comprises a cover plate (91) fixed at the bottom of a supporting plate (810), a protective plate (93) is movably connected to the bottom of the cover plate (91) through a rotating shaft (92), a plurality of semilunar plates (94) which are convenient to blow by gas are fixedly connected to the inside of the protective plate (93), a plurality of arc plates (95) used for blocking slag unidirectionally are rotatably connected to the inside of the protective plate (93) through a shaft lever (97), and the arc plates (95) are fixedly connected with the semilunar plates (94) through springs (96).

2. The casting pouring system according to claim 1, wherein three straight rods (77) are movably connected with bearing seats (76), and the bearing seats (76) are fixed on the bottom surface of the pouring platform (1) so as to reduce friction force when the straight rods (77) rotate.

3. The casting pouring system according to claim 1, wherein the ladle (81) is movably connected with a sealing cover (85) for sealing through a hinge (84), and a handle (86) for facilitating opening of the sealing cover (85) is fixedly connected with the sealing cover (85).

4. The casting pouring system according to claim 1, wherein the pouring mechanism (6) comprises a pouring trolley (61), two rotating supports (62) are fixedly connected to the pouring trolley (61), two hydraulic rods (63) are rotatably connected between the two rotating supports (62), a bracket (64) is rotatably connected to the hydraulic rods (63), a pouring cup (65) for containing molten metal is fixedly connected to the inside of the bracket (64), and the bracket (64) is rotatably connected to one ends of the two rotating supports (62) so that the hydraulic rods (63) can drive the pouring cup (65) to incline to finish pouring.

5. A casting pouring system according to claim 4, wherein the front end of the rotating bracket (62) is fixedly connected with the nut sleeve (67) through the connecting rod (66), and the casting trolley (61) is slidably connected to the track (2) through a pulley, so that the motor (3) is controlled by the console (5) to drive the pulley to rotate so as to enable the casting trolley (61) to move.

6. The casting pouring system according to claim 1, wherein the transmission mechanism (7) further comprises an equipment seat (71) and three sections of threaded rods (72), the three sections of threaded rods (72) are connected with a rotating rod (73) through gear sets (74) at two ends in a transmission mode, three groups of bevel gear sets (75) are equidistantly arranged on the rotating rod (73), a straight rod (77) is fixedly connected to the bevel gear sets (75), and a threaded rod (78) is fixedly connected to the top end of the straight rod (77) so that the rotating rod (73) drives the straight rod (77) to rotate when rotating.

7. A casting pouring system according to claim 6, wherein a three-section threaded rod (72) is rotatably connected to the inside of the equipment seat (71), and the three-section threaded rod (72) is connected to the nut sleeve (67) through a ball nut pair so that the three-section threaded rod (72) is rotated when the nut sleeve (67) is engaged with the threads on the three-section threaded rod (72).