Pouring device for producing nodular iron casting for automobile

Abstract

The invention relates to the technical field of pouring devices, and discloses a pouring device for producing nodular iron castings for automobiles, which comprises an outer barrel assembly. According to the pouring device for producing the nodular iron casting for the automobile, the slag salvaging rod assembly and the slag salvaging shovel assembly are driven to carry out slag salvaging action on slag in molten liquid; the slag salvaging rod assembly and the slag salvaging shovel assembly are driven to integrally ascend and steer after slag salvaging is finished, and then the slag salvaging action is repeated to enable the slag salvaging shovel assembly to be in contact with the slag scraping plate, so that the purpose of slag unloading is achieved, the purposes of slag salvaging and slag unloading are achieved through one set of mechanical action, manual participation is reduced, and the production efficiency is improved. The slag salvaging device is reasonable in slag salvaging action, simulates the action of manual salvaging, can salvage high-temperature slag in the inner barrel to the greatest extent, and reduces omission, and the occurrence of personnel injury caused by splashing and bursting of the slag during manual slag salvaging is avoided, and the slag salvaging device is reasonable in slag salvaging action and simulates the action of manual salvaging.

Description

Technical Field

[0001] The invention relates to the technical field of pouring devices, in particular to a pouring device for producing ductile iron castings for automobiles. Background Art

[0002] Ductile iron castings for automobiles are a type of metal product widely used in the field of automobile manufacturing. Ductile iron castings have high strength and toughness and can withstand various mechanical loads generated during the driving of the car, such as engine vibration, impact force of the suspension system, etc., to ensure the reliability and safety of automobile parts. Many parts of the car, such as crankshafts, camshafts, brake discs, etc., need to have good wear resistance to ensure their service life. Ductile iron castings have good wear resistance, which can reduce the wear of parts and components, reduce maintenance costs and replacement frequency.

[0003] Ductile iron castings require a casting device during production, and the performance of the device plays a decisive role in the quality of the ductile iron castings. With the rapid development of the automobile industry, the performance requirements for automotive ductile iron castings are becoming increasingly stringent, and high strength and high toughness properties have become key indicators, making the research and development of high-performance casting devices that are compatible with them urgent.

[0004] The prior art publication number is CN116765368B, which provides a liquid metal pouring device. The ladle turning mechanism of the liquid metal pouring device includes a base and a top frame. The base is fixedly arranged, and the top frame is connected to the base through a hydraulic rod; the upper front end of the liquid-holding ladle is fixedly connected with a pouring port, and the upper rear end of the liquid-holding ladle is fixedly connected to the top frame; the pouring liquid guiding platform is arranged at the front of the ladle turning mechanism and corresponds to the pouring port. The pouring liquid guiding platform includes a swinging chute, and the swinging chute can swing left and right; the driving mechanism is arranged on the ladle turning mechanism and is transmission-connected with the swinging chute, and is used to drive the swinging chute to swing left and right. By allowing the swinging chute to swing left and right during pouring, the molten alloy can be more evenly introduced into the metal ingot mold, thereby avoiding the accumulation of the molten alloy and causing slower cooling, greatly improving the cooling rate of the molten metal, thereby improving production efficiency and improving economic benefits.

[0005] The above-mentioned prior art, although the alloy melt can be uniformly introduced into the mold by swinging the chute, does not have the slag removal function. The alloy melt cannot be poured directly into the mold when it is taken out of the furnace, because there are impurities in the melt. Generally, it needs to be manually salvaged in advance. However, salvaging slag in the melt under high temperature conditions often causes artificial burns. The slag may also actively splash and explode in a small range under high temperature conditions. The safety of manual salvage cannot be guaranteed. In addition, although the prior art uses left and right swings to evenly guide the melt, it cannot change the melt outlet height. Molds of different heights have different acceptance capacities for the same height outlet. Overflow, splashing, etc. may occur when pouring.

[0006] It can be seen that a casting device for the production of ductile iron castings for automobiles is needed to solve the problems mentioned in the above background technology that the existing equipment uses manual slag salvaging in high-temperature molten metal, and the high-temperature molten metal is prone to overflow and splashing due to the fixed pouring height. Summary of the invention

[0007] The object of the present invention is to provide a pouring device for producing ductile iron castings for automobiles, so as to solve the problems raised in the above-mentioned background technology.

[0008] In order to solve the above technical problems, the present invention provides the following technical solutions: A pouring device for producing ductile iron castings for automobiles, comprising an outer barrel assembly, wherein the outer side of the outer barrel assembly is provided with three groups of discharge ports of different heights, namely, a first discharge port, a second discharge port and a third discharge port, for receiving the molten liquid dumped from an inner barrel, a dumping assembly is installed at the bottom end of the inner barrel, and a slag scooping assembly is installed at one side of the inner barrel, wherein the slag scooping assembly is used to drive a slag scooping rod assembly and a slag scooping shovel assembly to move and scoop slag in the molten liquid, and the slag scooping shovel assembly is connected to change the vertical and horizontal states at one side of the slag scooping rod assembly by rotating; The slag scooping assembly includes a turntable, and the turntable is driven by a lever and an arc-shaped limit block to reciprocate and shift a rotating drum on one side to rotate, and the bottom end of the rotating drum is connected to a pinion gear through a connecting shaft, and one side of the turntable is connected to a first meshing wheel through a shaft, and one side of the first meshing wheel is meshed with a second meshing wheel, support frames are provided below the first meshing wheel and the second meshing wheel, and an adjusting plate is commonly connected above the ends of the two groups of support frames, one side of the adjusting plate is connected to a limiting pin shaft, and the limiting pin shaft is connected to a large gear located below the two groups of support frames, the large gear is meshed with the pinion gear, and the front side of the second meshing wheel is connected to a center driving wheel through a shaft, and the upper and lower ends of one side of the center driving wheel are respectively meshed with the first driving wheel and the second driving wheel, and the outer sides of the first driving wheel and the second driving wheel are respectively hinged to the slag scooping rod assembly.

[0009] Preferably, the outer barrel assembly includes a fixed barrel, and the first discharge port, the second discharge port, and the third discharge port are all arranged on the outside of the fixed barrel. The ends of the second discharge port and the third discharge port are both connected with diversion channels, and the diversion channels are spirally arranged on the outside of the fixed barrel.

[0010] Preferably, multiple material pouring ports are arranged at the top end of the inner barrel, and the pouring directions of the multiple material pouring ports respectively correspond to the first discharge port and the diversion channels.

[0011] Preferably, the tilting assembly includes a horizontal shaft arranged at the bottom end of the inner barrel. One end of the horizontal shaft is connected with a first half worm gear, and a first worm gear group meshing with the first half worm gear is arranged on one side of the first half worm gear. A cross bar is arranged below the horizontal shaft, and a limiting groove is connected to the bottom end of the cross bar. A hinge joint is arranged inside the limiting groove, and one end of the hinge joint is connected with a support shaft. One end of the support shaft is connected with a second half worm gear, and a second worm gear group meshing with the second half worm gear is installed on one side of the second half worm gear. The second worm gear group is installed on a support base, and one end of the cross bar is hinged to the support base.

[0012] Preferably, a motor is installed at the rear side of the turntable. The number of the dial rods and the arc-shaped limiting blocks is two groups each, and the two groups of the dial rods and the arc-shaped limiting blocks are symmetrically arranged on the outside of the turntable. Cross grooves are arranged on the outside of the rotating cylinder, and the cross grooves are in contact with the dial rods. Connecting plates are arranged at the top end and the bottom end of the rotating cylinder, and notches are symmetrically formed on the outside of the connecting plates. The notches are in contact with the arc-shaped limiting blocks.

[0013] Preferably, a first support frame is arranged at the rear side of the first meshing wheel, and a support column connected to the ground is arranged at the rear side of the first support frame. A second support frame is connected to the rear side of the second meshing wheel, and a side support frame is connected to the rear side of the second support frame. A support plate is arranged at the rear side of the first driving wheel and the second driving wheel, and the support plate is connected to the side support frame. The ends of the first support frame and the second support frame are both connected with an adjusting plate through a shaft, and a gear group is arranged above the adjusting plate. The gear group is connected with the adjusting plate through two shafts, and the second meshing wheel can rotate around the first meshing wheel.

[0014] Preferably, the slag fishing rod assembly includes a first vertical part, an arc part, and a second vertical part, and the first vertical part, the arc part, and the second vertical part are integrally formed. The first vertical part and the second vertical part are respectively located at both ends of the arc part. Two hinge shafts are arranged on the second vertical part and are respectively hinged to the first driving wheel and the second driving wheel. A fixed arc plate is arranged on one side of the first vertical part, and a movable pin shaft is arranged inside the fixed arc plate. The bottom end of the movable pin shaft is connected with a spring pin shaft. A rotating shaft is connected to the side of the first vertical part away from the fixed arc plate, and the first vertical part is rotationally connected to the fixed part through the rotating shaft.

[0015] Preferably, the slag shovel assembly includes a fixed part and a grille shovel, and the grille shovel is respectively arranged on both sides of the fixed part, a plug plate is connected below one side of the fixed part, and a hole matching the spring pin is opened inside the plug plate.

[0016] Preferably, a scraper plate is provided on one side inside the outer barrel assembly, and a clamping block is connected to the bottom end of the scraper plate, the scraper plate is in contact with the grille shovel, and the clamping block is in contact with the movable pin shaft.

[0017] Compared with the prior art, the beneficial effects achieved by the present invention are: First, the present invention realizes the slag scooping action of driving the slag scooping rod assembly and the slag scooping shovel assembly to scoop the slag in the molten metal through the slag scooping assembly, and drives the slag scooping rod assembly and the slag scooping shovel assembly to rise and turn as a whole after the slag scooping is completed, and then repeats the slag scooping action so that the slag scooping shovel assembly contacts the slag scraper plate to achieve the purpose of slag unloading, thereby achieving the purpose of slag scooping and slag unloading by using a set of mechanical actions, reducing manual participation, and avoiding the situation where the slag splashes and explodes during manual slag scooping to cause injuries to personnel. In addition, the set of slag scooping actions is reasonable, imitating the manual scooping action, and can scoop out the high-temperature slag in the inner barrel to the greatest extent, reducing omissions. The slag unloading action simulates "scraping" to avoid the high-temperature slag adhering to the surface of the slag scooping shovel assembly, thereby reducing the impact on the slag scooping next time.

[0018] Second, the present invention realizes that the pouring assembly can drive the inner barrel to pour in different directions by setting up the outer barrel assembly, the inner barrel, and the pouring assembly. The pouring paths are different in combination with the pouring ports in different directions. The heights of the discharge ports connected to the flow guides are different, so the pouring points of the molten liquid poured out through different flow guides are at different heights. It can be flexibly adjusted to cope with molds of different heights to avoid overflow or splashing of the molten liquid when pouring, thereby improving the casting quality of the mold and the usability of the device.

[0019] Thirdly, the present invention realizes that the slag shovel assembly can be placed in a state where the slag shovel assembly can be changed by a rotating shaft on one side of the slag shovel assembly by means of the slag rod assembly, so that the grid shovel enters the melt in a vertical state, and naturally rotates to a horizontal state when it contacts the bottom of the inner barrel. In this state, the grid shovel can remove the slag in the melt to the greatest extent, and keep the slag in a horizontal state to move it out of the top of the inner barrel for unloading. During the unloading process, the rotating structure is triggered, and the vertical state of the grid shovel is restored under the action of gravity, so that all the slag can be discharged while meeting the state of entering the melt next time, thus killing two birds with one stone. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the structure of the present invention; Figure 2 It is a cross-sectional view of the present invention; Figure 3 Schematic diagram of the fixed barrel structure of the present invention; Figure 4 Schematic diagram of the internal structure of the fixed barrel of the present invention; Figure 5 Exploded view of the inner barrel and dumping assembly structure of the present invention; Figure 6 Connection diagram of the dumping assembly structure of the present invention; Figure 7 Connection diagram of the slag scraping assembly, slag scraping rod assembly, and slag scraping shovel assembly structures of the present invention; Figure 8 Exploded view of the slag scraping assembly, slag scraping rod assembly, and slag scraping shovel assembly structures of the present invention; Figure 9 Connection diagram of the slag scraping rod assembly and slag scraping shovel assembly structures of the present invention; Figure 10 Horizontal state diagram of the slag scraping shovel assembly of the present invention; Figure 11 Connection diagram of the first support frame and the second support frame structures of the present invention; Figure 12 Partial connection diagram of the slag scraping assembly of the present invention; Figure 13 Schematic connection diagram of the lever and the rotating cylinder of the present invention; Figure 14 Exploded view of the slag scraping plate and the clamping block structures of the present invention.

[0021] Wherein: 1. Outer barrel assembly; 101. Fixed barrel; 102. First discharge port; 103. Second discharge port; 104. Third discharge port; 105. Flow guide channel; 2. Inner barrel; 201. Pouring port; 3. Dumping assembly; 301. Horizontal shaft; 302. First half worm gear; 303. First worm gear set; 304. Cross bar; 305. Limit groove; 306. Hinge joint; 307. Support shaft; 308. Second half worm gear; 309. Second worm gear set; 4. Slag scraping rod assembly; 401. First vertical part; 402. Arc part; 403. Second vertical part; 404. Fixed arc plate; 405. Moving pin shaft; 406. Spring pin shaft; 407. Rotating shaft; 5. Slag scraping shovel assembly; 501. Fixed part; 502. Insert plate; 503. Grille shovel; 6. Slag scraping assembly; 601. Motor; 602. Turntable; 6021. Lever; 6022. Arc-shaped limit block; 603. Rotating cylinder; 6031. Cross slot; 604. Connecting plate; 6041. Notch; 605. Connecting shaft; 606. Small gear; 607. First meshing wheel; 6071. First support frame; 608. Second meshing wheel; 6081. Second support frame; 609. Adjusting plate; 610. Limit pin shaft; 611. Gear set; 612. Large gear; 613. Central driving wheel; 614. First driving wheel; 615. Second driving wheel; 7. Slag scraping plate; 701. Clamping block. Specific Embodiments

[0022] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without making creative efforts belong to the scope of protection of the present invention.

[0023] Please refer to Figures 1 - 6 , a pouring device for the production of ductile iron castings for automobiles, including an outer barrel assembly 1. There are three discharge ports with different heights on the outer side of the outer barrel assembly 1, namely the first discharge port 102, the second discharge port 103, and the third discharge port 104, which receive the molten liquid poured from the inner barrel 2. A pouring assembly 3 is installed at the bottom end of the inner barrel 2.

[0024] In this embodiment, the relatively common pouring device is generally a barrel structure lifted by an iron chain. The barrel is manually controlled to move or lift below, and operations such as slag skimming and subsequent pouring are all manually completed. This device is relatively flexible, but personal safety cannot be guaranteed, as there is direct contact between the barrel and people. There is also a device where the barrel is fixed, but the installation height is relatively high, and the barrel is tilted, and then the molten liquid is poured into the mold. The tilt point of this device is high. If splashing or overflow is to be avoided, only the height of the mold can be increased. However, for general automotive molds such as wheels, the volume is relatively large, and the transportation process of raising the height is inconvenient. Although the present device adopts a fixed-barrel structure, the discharging angle from the discharge port is not fixed. In this embodiment, three discharge ports with different discharging heights, namely the first discharge port 102, the second discharge port 103, and the third discharge port 104, are provided. The actual number can be increased or decreased according to on-site construction. The three discharge ports are on the same side of the circular fixed barrel 101 but not on the same vertical line. When pouring the molten liquid from one group, the other two groups can be well avoided. The setting on the same side is convenient for placing the mold, and only needs to be adjusted according to the specific position of the mold's feed port. In this embodiment, the starting heights of the diversion channels 105 connected to the second discharge port 103 and the third discharge port 104 are both at the top of the side of the fixed barrel 101, which is convenient for receiving the molten liquid poured from the inner barrel 2 and can avoid splashing when entering the diversion channel 105 from the pouring port 201. The setting position of the first discharge port 102 is the highest among the three discharge ports and can directly receive the molten liquid from the pouring port 201.

[0025] Specifically, the outer barrel assembly 1 includes a fixed barrel 101, and the first discharge port 102, the second discharge port 103 and the third discharge port 104 are all arranged on the outside of the fixed barrel 101, the ends of the second discharge port 103 and the third discharge port 104 are both connected with a guide channel 105, and the guide channel 105 is spirally arranged on the outside of the fixed barrel 101.

[0026] In this embodiment, the flow guide 105 can be coated with a material that is resistant to high temperatures and will not produce adhesion of molten iron, such as a ceramic coating, so that the molten metal poured from the inner barrel 2 will not adhere to the flow guide 105, and can be directly poured into the mold through the second discharge port 103 or the third discharge port 104, thereby reducing residue and waste. In this embodiment, the fixed barrel 101 is not a complete cylindrical structure, and an opening is provided on one side of its reverse side, and the reverse side will not be poured out by the molten metal. The remaining opening can facilitate the operation of the slag scooping component 6 and facilitate slag unloading. A gap is left between the fixed barrel 101 and the inner barrel 2 to leave space for pouring the inner barrel 2. There is no cover plate on the top of the inner barrel 2, and the molten metal can be poured in from above. The bottom of the inner barrel 2 is connected to the pouring component 3, and the support base at the bottom of the pouring component 3 provides support for the inner barrel 2.

[0027] Specifically, a plurality of pouring ports 201 are disposed at the top of the inner barrel 2 , and the pouring directions of the plurality of pouring ports 201 correspond to the first discharge port 102 and the flow guide channel 105 , respectively.

[0028] In this embodiment, the setting direction of the pouring port 201 is set according to the tipping direction of the inner barrel 2. The three groups of pouring ports 201 drawn in this figure correspond to the positions of a group of first discharge ports 102 and two groups of guide channels 105. The setting position of the pouring port 201 can be changed according to the different tipping directions. At the same time, the setting position of the guide channel 105 also needs to be changed. When the inner barrel 2 is tipped to one side, the molten liquid will only pour out from the corresponding pouring port 201, and the other two groups of pouring ports 201 will not leak.

[0029] Specifically, the tipping assembly 3 includes a transverse axis 301, and the transverse axis 301 is arranged at the bottom end of the inner barrel 2, one end of the transverse axis 301 is connected to the first half worm gear 302, and one side of the first half worm gear 302 is provided with a first worm group 303 meshing with it, a transverse rod 304 is arranged below the transverse axis 301, and the bottom end of the transverse rod 304 is connected to the limiting groove 305, a hinge head 306 is arranged inside the limiting groove 305, and one end of the hinge head 306 is connected to a support shaft 307, one end of the support shaft 307 is connected to the second half worm gear 308, and one side of the second half worm gear 308 is installed with a second worm group 309 meshing with it, the second worm group 309 is installed on the support base, and one end of the transverse rod 304 is hinged to the support base.

[0030] In the present embodiment, the first worm gear group 303 and the second worm gear group 309 both include a worm and a motor. When it is necessary to start the worm gear to rotate, the motor can be started first. The motor in the first worm gear group 303 is a forward and reverse motor, because it is necessary to drive the first half worm gear 302 to rotate in two different directions, thereby driving the inner barrel 2 to tip from both sides. In the present embodiment, one end of the cross bar 304 is hinged to the support base, but the other end is not, so when the second worm gear group 309 rotates, it will drive the second half worm gear 308 to rotate in one direction. The second half worm gear 308 applies force through the support shaft 307 and the hinge head 306, thereby making the cross bar 304 take the hinge end as a fixed point, so that the cross bar 304 rotates as a whole, thereby driving the inner barrel 2 to rotate and tip with a corner of the bottom as a fixed point, and pouring out the molten liquid inside it. Because the tipping angle is limited, the barrel depth of the inner barrel 2 should not be too large. The specific barrel depth of the inner barrel 2 is set according to the maximum tipping limit of the tipping component 3.

[0031] See also Figures 7 - 10 A pouring device for producing ductile iron castings for automobiles, a slag scooping assembly 6 is installed on one side of an inner barrel 2, and the slag scooping assembly 6 is used to drive a slag scooping rod assembly 4 and a slag scooping shovel assembly 5 to move slag and unload slag in the molten metal, and the slag scooping assembly 6 includes a turntable 602, and the turntable 602 reciprocates and rotates a rotating drum 603 on one side through a lever 6021 and an arc-shaped limit block 6022, and the bottom end of the rotating drum 603 is connected to a pinion 606 through a connecting shaft 605, and a first meshing wheel 607 is connected to one side of the turntable 602 through a shaft, and a second meshing wheel 608 is meshed on one side of the first meshing wheel 607, and the first meshing wheel 608 is meshed with the second meshing wheel 608. 7 and the second meshing wheel 608 are both provided with support frames below, and an adjusting plate 609 is commonly connected to the upper ends of the two groups of support frames, one side of the adjusting plate 609 is connected to a limit pin 610, and the limit pin 610 is connected to a large gear 612 located below the two groups of support frames, and the large gear 612 is meshed with the small gear 606. The front side of the second meshing wheel 608 is connected to a central driving wheel 613 through an axis, and the upper and lower ends of one side of the central driving wheel 613 are respectively meshed with a first driving wheel 614 and a second driving wheel 615, and the outer sides of the first driving wheel 614 and the second driving wheel 615 are respectively hinged to the slag scooping rod assembly 4.

[0032] In this embodiment, a controller is installed in the device. The controller can directly control the start and operation of the electronic components in the device, which is convenient for direct control, drives the mechanical equipment to complete the slag scraping process, reduces manual participation, and thus reduces the possible harm to the human body. In this embodiment, the slag scraping and slag discharging operations of the slag scraping rod assembly 4 and the slag scraping shovel assembly 5 are controlled by starting the motor 601. One set of motors can complete multiple actions, which not only reduces energy consumption but also makes the linkage between devices stronger. After the motor 601 is started, it drives the turntable 602 to rotate. The turntable 602 drives the dial rod 6021 and the arc-shaped limit block 6022 to rotate, and intermittently rotates the rotating cylinder 603, so that the slag scraping rod assembly 4 and the slag scraping shovel assembly 5 perform range movement actions, scrape slag from the inner barrel 2 and then move it to the outside for slag discharging. At the same time, the turntable 602 also drives the first meshing wheel 607 to rotate. The first meshing wheel 607 drives the second meshing wheel 608 meshed on its side to rotate, so that the slag scraping rod assembly 4 and the slag scraping shovel assembly 5 can move along a certain trajectory inside the inner barrel 2, thereby performing the slag scraping operation. The combination of the two enables the slag scraping rod assembly 4 and the slag scraping shovel assembly 5 to continuously complete the slag scraping and slag discharging actions. As long as the motor 601 is started, the slag scraping rod assembly 4 and the slag scraping shovel assembly 5 will act according to the established trajectory through mechanical cooperation.

[0033] Specifically, the motor 601 is installed at the rear side of the turntable 602. The number of the dial rods 6021 and the arc-shaped limit blocks 6022 is two groups. The two groups of dial rods 6021 and arc-shaped limit blocks 6022 are symmetrically arranged on the outside of the turntable 602. A cross groove 6031 is arranged on the outside of the rotating cylinder 603, and the cross groove 6031 is in contact with the dial rod 6021. Connecting plates 604 are arranged at the top and bottom of the rotating cylinder 603, and notches 6041 are symmetrically formed on the outside of the connecting plates 604, and the notches 6041 are in contact with the arc-shaped limit blocks 6022.

[0034] In this embodiment, when the rotating disk 602 rotates one circle, the four groups of symmetrically arranged levers 6021 and arc-shaped limit blocks 6022 will contact the rotating drum 603 and the connecting plate 604 at intervals. For example, after the first group of levers 6021 contacts the cross groove 6031, the rotating drum 603 will be driven to rotate once as a whole, and the rotation angle is 180 degrees. Then, the first group of arc-shaped limit blocks 6022 will rotate to one side of the rotating drum 603, and the arc-shaped limit blocks 6022 will contact the notch 6041. At this time, the rotating drum 603 will not The rotating drum 603 rotates and keeps rotating for a while, and then the second group of levers 6021 rotates to one side of the rotating drum 603 and continues to shift the rotating drum 603 once according to the track of the cross groove 6031, so that the rotating drum 603 rotates 180 degrees in the opposite direction as a whole. Finally, the second group of arc-shaped limit blocks 6022 rotate to one side of the rotating drum 603 and contact the upper and lower groups of notches 6041, so that it keeps not rotating for a while. The rotation of the rotating drum 603 acts on the pinion 606 through the connecting shaft 605, and the pinion 606 The large gear 612 will be driven to rotate, so the large gear 612 will rotate forward for a certain angle, stop for a period of time, then rotate in the reverse direction for a certain angle, and then stop for a period of time. The rotation of the large gear 612 will drive the adjustment plate 609 to rotate through the limit pin 610. The adjustment plate 609 includes a transverse portion and a longitudinal portion. The longitudinal portion is arranged in the middle position of the transverse portion, and the limit pin 610 is arranged at the tail end of the longitudinal portion. Both ends of the transverse portion are provided with an arc structure. The rotation of the adjustment plate 609 occurs with the center point of the arc portion close to the first meshing wheel 607 as the fixed point, and the center point of the arc portion close to the second meshing wheel 608 will drive the second support frame 6081 and the second meshing wheel 608 to rotate. The gear set 611 includes two groups of meshing gears. At this time, one group of gears revolves around another group of gears, and the second meshing wheel 608 rotates around the first meshing wheel 607. The diameter ratio between the large gear 612 and the central driving wheel 613 can be adjusted according to on-site requirements.

[0035] Specifically, a first support frame 6071 is provided on the rear side of the first meshing wheel 607, and a support column connected to the ground is provided on the rear side of the first support frame 6071, a second support frame 6081 is connected to the rear side of the second meshing wheel 608, and the rear side of the second support frame 6081 is connected to the side support frame, a support plate is provided on the rear side of the first driving wheel 614 and the second driving wheel 615, and the support plate and the side support frame are connected, the ends of the first support frame 6071 and the second support frame 6081 are connected to the adjustment plate 609 through an axis, and a gear set 611 is provided above the adjustment plate 609, and the gear set 611 is connected to the adjustment plate 609 through two sets of axis, and the second meshing wheel 608 can rotate around the first meshing wheel 607.

[0036] In this embodiment, the first meshing wheel 607 rotates, but the lower first support frame 6071 remains stationary. While the second meshing wheel 608 remains meshed with the first meshing wheel 607, the lower second support frame 6081 drives the second meshing wheel 608 to rotate around the first meshing wheel 607. When the second support frame 6081 rotates, it drives the first driving wheel 614 and the second driving wheel 615 to rotate together. While the first driving wheel 614 and the second driving wheel 615 remain meshed and rotate, the whole moves, thereby driving the slag scraping rod assembly 4 and the slag scraping shovel assembly 5 to perform slag scraping, moving, and slag discharging actions.

[0037] Please refer to Figures 11 - 14 , a pouring device for the production of ductile iron castings for automobiles. The slag scraping shovel assembly 5 changes its vertical and horizontal states through rotational connection on one side of the slag scraping rod assembly 4.

[0038] In this embodiment, both the slag scraping rod assembly 4 and the slag scraping shovel assembly 5 are made of high-temperature-resistant metal materials. An attachment layer can be provided on the surface of the slag scraping shovel assembly 5 to facilitate the adhesion of high-temperature slag and also facilitate the overall removal, such as a silicate-based slag removal agent coating. The surface of the slag scraping rod assembly 4 can adopt a coating that is not easily adhered to high-temperature slag, such as a ceramic coating. Both the slag scraping rod assembly 4 and the slag scraping shovel assembly 5 will enter the molten liquid inside the inner barrel 2 and move along a certain trajectory to meet the operation purpose of scraping the slag in the inner barrel 2.

[0039] Specifically, the slag scraping rod assembly 4 includes a first vertical portion 401, an arc portion 402, and a second vertical portion 403. The first vertical portion 401, the arc portion 402, and the second vertical portion 403 are integrally formed, and the first vertical portion 401 and the second vertical portion 403 are respectively located at both ends of the arc portion 402. Two hinge shafts are provided on the second vertical portion 403 and are respectively hinged to the first driving wheel 614 and the second driving wheel 615. A fixed arc plate 404 is provided on one side of the first vertical portion 401, and a movable pin shaft 405 is provided inside the fixed arc plate 404. The bottom end of the movable pin shaft 405 is connected to a spring pin shaft 406. A rotating shaft 407 is connected to the side of the first vertical portion 401 away from the fixed arc plate 404, and the first vertical portion 401 is rotationally connected to the fixed portion 501 through the rotating shaft 407.

[0040] In this embodiment, the slag ladle rod assembly 4 is connected to the slag ladle assembly 5 through a rotating shaft 407. Under normal circumstances, the slag ladle assembly 5 will vertically fall on one side of the slag ladle rod assembly 4 due to gravity. When the slag ladle assembly 5 enters the inner barrel 2 and its bottom contacts the inner bottom of the inner barrel 2 during the descent, it will rotate as a whole. During the rotation, the insertion plate 502 contacts the spring pin 406 and engages with it, causing the slag ladle assembly 5 to remain horizontal below the slag ladle rod assembly 4. This state can better shovel out the slag in the inner barrel 2 and contact the slag over a larger area. In existing equipment, manual operation also uses a ladling method. The movement trajectory of the slag ladle assembly 5 in this device is similar to the manual ladling trajectory, which can better ladle out the slag.

[0041] Specifically, the slag ladle assembly 5 includes a fixing part 501 and a grid ladle 503, and the grid ladles 503 are respectively arranged on both sides of the fixing part 501. An insertion plate 502 is connected to the lower side of one side of the fixing part 501, and a hole matching the spring pin 406 is opened inside the insertion plate 502.

[0042] In this embodiment, the hole inside the insertion plate 502 needs to be cleaned regularly to prevent the slag in the molten liquid of the inner barrel 2 from blocking it and affecting the engagement. Since the spring pin 406 has a certain pushing force, general slag will not block it either. The diameter of the through hole inside the insertion plate 502 can also be increased to meet the engagement requirement while not easily getting clogged with impurities.

[0043] Specifically, a slag scraping plate 7 is arranged on one side inside the outer barrel assembly 1, and a clamping block 701 is connected to the bottom end of the slag scraping plate 7. The slag scraping plate 7 contacts the grid ladle 503, and the clamping block 701 contacts the moving pin 405.

[0044] In this embodiment, the bottom end of the slag scraping plate 7 is provided with a serrated structure. When the slag ladle assembly 5 moves and rubs below the slag scraping plate 7, the serrated structure can be used to better scrape off the impurities. An impurity receiving device can be installed at the bottom end of the slag scraping plate 7 to receive the scraped impurities. The rubbing action also imitates the action of existing operators removing the adhering impurities after ladling up the impurities. During the rubbing action, the clamping block 701 will contact the moving pin 405, and the moving pin 405 will drive the spring pin 406 to retract, thereby releasing the insertion plate 502, causing the slag ladle assembly 5 to return to the vertical state under the action of gravity, and all the impurities on it will fall off.

[0045] During use, it is necessary to connect to an external power supply to provide electrical energy for the device so that the device can be used normally. First, pour the molten liquid into the inner barrel 2, and then start the motor 601, so that the motor 601 drives the turntable 602 to rotate. The rotation of the turntable 602 will drive the lever 6021 and the arc-shaped limiting block 6022 to rotate, and also drive the first meshing wheel 607 on the front side to rotate. The rotation of the first meshing wheel 607 will drive the second meshing wheel 608 to rotate, thereby driving the central driving wheel 613 on its front side to rotate. The rotation of the central driving wheel 613 will drive the first driving wheel 614 and the second driving wheel 615 to rotate, causing the slag scraping rod assembly 4 to move. The slag scraping rod assembly 4 will drive the slag scraping shovel assembly 5 to move along a movement trajectory similar to a rectangle. When the slag scraping shovel assembly 5 enters the molten liquid, it remains in a vertical state under the action of gravity. As the bottom of the descending grid shovel 503 contacts the bottom of the inner barrel 2, the entire slag scraping shovel assembly 5 will rotate under the action of the rotating shaft 407 and transform into a horizontal state. During the rotation, the spring pin 406 is engaged into the inside of the insertion plate 502 under the action of the spring, so that the entire slag scraping shovel assembly 5 maintains a horizontal state. As the first driving wheel 614 and the second driving wheel 615 continue to rotate, the slag scraping shovel assembly 5 moves in the molten liquid and then rises to scoop out the impurities in the molten liquid; With the progress of a single salvage operation, the arc-shaped limit block 6022 gradually rotates to the side close to the drum 603, and contacts the cross slot 6031 to drive the overall rotation of the drum 603, so that the connecting shaft 605 drives the pinion 606 to rotate, thereby driving the large gear 612 to rotate. The large gear 612 drives the adjusting plate 609 to rotate around one end of it through the limit pin shaft 610. The rotation of the adjusting plate 609 drives the second support frame 6081 and the second meshing wheel 608 to rotate around the first meshing wheel 607 as a fixed point. At this time, the meshing between the first meshing wheel 607 and the second meshing wheel 608 remains unchanged, so the action of the second meshing wheel 608 driving the central drive wheel 613 to rotate still exists. The second support frame 6081 drives the rear support plates of the first drive wheel 614 and the second drive wheel 615 to rotate, thereby driving the slag ladle assembly 4 and the slag scraping shovel assembly 5 to rotate as a whole, so that the slag scraping shovel assembly 5 for containing impurities rotates above the inner barrel 2 in a horizontal state. After moving below the slag scraping plate 7, the arc-shaped limit block 6022 rotates to the side close to the drum 603 and contacts the notch 6041, restricting the rotation of the drum 603 and making it stop rotating. The slag scraping shovel assembly 5 continues to move along a rectangular trajectory and contacts the bottom end of the slag scraping plate 7, scraping off the slag that may adhere above it by scraping. During the contact with the slag scraping plate 7, the moving pin shaft 405 will contact the block 701, and the moving pin shaft 405 moves to drive the spring pin shaft 406 to retreat from the inside of the plug plate 502. Under the action of gravity, the slag scraping shovel assembly 5 rotates as a whole and returns to the vertical state, and all the slag is discharged. As the turntable 602 continues to rotate, another set of lever 6021 contacts the drum 603 and drives the drum 603 to rotate in the reverse direction according to the cross-set trajectory, so that the slag ladle assembly 4 and the slag scraping shovel assembly 5 return above the inner barrel 2 again to prepare for another slag salvage; During the slag discharge interval, the mold can be placed under the appropriate discharge port according to the height of the mold. Then, the second worm group 309 or the first worm group 303 can be activated. After the second worm group 309 is activated, it drives the second half worm wheel 308 to rotate, thereby driving the support shaft 307 to rotate. The support shaft 307 applies force through the hinge joint 306 to lift one end of the inner barrel 2, causing the inner barrel 2 to tilt as a whole. The molten liquid is poured out through the pouring port 201 facing the first discharge port 102. The molten liquid is poured out from the first discharge port 102 and poured into the mold. If the first worm group 303 is activated, it will drive the first half worm wheel 302 to rotate, and the first half worm wheel 302 will drive the inner barrel 2 to tilt. At this time, the inner barrel 2 will tilt towards the diversion channels 105 arranged on both sides. The molten liquid enters the diversion channels 105 through the pouring ports 201 on both sides, and after being diverted by the diversion channels 105, it enters the second discharge port 103 or the third discharge port 104, and then enters the mold waiting below it. Since the inclined positions of the second discharge port 103 and the third discharge port 104 are relatively low, there will be no splashing caused by high-point leakage.

[0046] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present application. The scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A pouring device for producing ductile iron castings for automobiles, comprising an outer barrel assembly (1), characterized in that: The outer side of the outer barrel assembly (1) is provided with three groups of discharge ports of different heights, namely a first discharge port (102), a second discharge port (103) and a third discharge port (104), for receiving the molten liquid dumped from the inner barrel (2); a dumping assembly (3) is installed at the bottom end of the inner barrel (2), and a slag scoop assembly (6) is installed on one side of the inner barrel (2); the slag scoop assembly (6) is used to drive the slag scoop rod assembly (4) and the slag scoop shovel assembly (5) to move the slag in the molten liquid and discharge the slag; and the slag scoop assembly (5) is connected to the side of the slag scoop rod assembly (4) to change the vertical and horizontal states. The slag scooping assembly (6) comprises a rotating disk (602), and the rotating disk (602) reciprocates and rotates a rotating drum (603) on one side through a lever (6021) and an arc-shaped stop block (6022), the bottom end of the rotating drum (603) is connected to a pinion (606) through a connecting shaft (605), one side of the rotating disk (602) is connected to a first meshing wheel (607) through a shaft, and one side of the first meshing wheel (607) is meshed with a second meshing wheel (608), support frames are provided below the first meshing wheel (607) and the second meshing wheel (608), and the ends of the two sets of support frames are connected together at the top. An adjustment plate (609) is connected, one side of the adjustment plate (609) is connected to a limit pin shaft (610), and the limit pin shaft (610) is connected to a large gear (612) located below the two groups of support frames, the large gear (612) is meshed with a small gear (606), the front side of the second meshing wheel (608) is connected to a central driving wheel (613) via an axis, and the upper and lower ends of one side of the central driving wheel (613) are respectively meshed with a first driving wheel (614) and a second driving wheel (615), and the outer sides of the first driving wheel (614) and the second driving wheel (615) are respectively hinged to the slag scoop rod assembly (4).

2. A pouring device for producing ductile iron castings for automobiles according to claim 1, characterized in that: The outer barrel assembly (1) comprises a fixed barrel (101), and a first discharge port (102), a second discharge port (103) and a third discharge port (104) are all arranged outside the fixed barrel (101), and ends of the second discharge port (103) and the third discharge port (104) are both connected to a flow guide (105), and the flow guide (105) is spirally arranged outside the fixed barrel (101).

3. A pouring device for producing ductile iron castings for automobiles according to claim 2, characterized in that: The top of the inner barrel (2) is provided with a plurality of pouring ports (201), and the pouring directions of the plurality of pouring ports (201) correspond to the first discharge port (102) and the flow guide channel (105), respectively.

4. A pouring device for producing ductile iron castings for automobiles according to claim 1, characterized in that: The tipping assembly (3) comprises a transverse axis (301), and the transverse axis (301) is arranged at the bottom end of the inner barrel (2); one end of the transverse axis (301) is connected to a first half worm gear (302), and a first worm gear group (303) meshing with the first half worm gear (302) is arranged on one side of the first half worm gear (302); a transverse rod (304) is arranged below the transverse axis (301), and the bottom end of the transverse rod (304) is connected to a limiting groove (305); a hinged head (306) is arranged inside the limiting groove (305), and one end of the hinged head (306) is connected to a support shaft (307); one end of the support shaft (307) is connected to a second half worm gear (308), and a second worm gear group (309) meshing with the second half worm gear (308) is installed on one side of the second half worm gear (308); the second worm gear group (309) is installed on a support base, and one end of the transverse rod (304) is hinged to the support base.

5. The pouring device for producing ductile iron castings for automobiles according to claim 1, characterized in that: A motor (601) is installed on the rear side of the rotating disk (602); the number of the shifting rods (6021) and the arc-shaped limit blocks (6022) are both two groups; the two groups of the shifting rods (6021) and the arc-shaped limit blocks (6022) are both symmetrically arranged on the outer side of the rotating disk (602); a cross groove (6031) is arranged on the outer side of the rotating cylinder (603), and the cross groove (6031) is in contact with the shifting rod (6021); a connecting plate (604) is arranged on the top and bottom ends of the rotating cylinder (603), and notches (6041) are symmetrically opened on the outer side of the connecting plate (604), and the notches (6041) are in contact with the arc-shaped limit blocks (6022).

6. A pouring device for producing ductile iron castings for automobiles according to claim 1, characterized in that: A first support frame (6071) is arranged at the rear side of the first meshing wheel (607), and a support column connected to the ground is arranged at the rear side of the first support frame (6071); a second support frame (6081) is connected to the rear side of the second meshing wheel (608), and the rear side of the second support frame (6081) is connected to the side support frame; a support plate is arranged at the rear side of the first driving wheel (614) and the second driving wheel (615), and the support plate is connected to the side support frame; the ends of the first support frame (6071) and the second support frame (6081) are connected to an adjustment plate (609) via a shaft, and a gear set (611) is arranged above the adjustment plate (609); the gear set (611) is connected to the adjustment plate (609) via two sets of shafts; and the second meshing wheel (608) can rotate around the first meshing wheel (607).

7. A pouring device for producing ductile iron castings for automobiles according to claim 1, characterized in that: The slag scoop rod assembly (4) comprises a first vertical portion (401), an arc-shaped portion (402) and a second vertical portion (403), wherein the first vertical portion (401), the arc-shaped portion (402) and the second vertical portion (403) are integrally formed, and the first vertical portion (401) and the second vertical portion (403) are respectively located at two ends of the arc-shaped portion (402), and the second vertical portion (403) is provided with two sets of hinge shafts respectively connected to the first driving wheel (614) and the second driving wheel (615). ), a fixed arc plate (404) is provided on one side of the first vertical portion (401), and a movable pin shaft (405) is provided inside the fixed arc plate (404), the bottom end of the movable pin shaft (405) is connected to the spring pin shaft (406), a rotating shaft (407) is connected to the side of the first vertical portion (401) away from the fixed arc plate (404), and the first vertical portion (401) is rotatably connected to the fixed portion (501) via the rotating shaft (407).

8. A pouring device for producing ductile iron castings for automobiles according to claim 7, characterized in that: The slag shovel assembly (5) comprises a fixing portion (501) and a grille shovel (503), wherein the grille shovel (503) is respectively arranged on both sides of the fixing portion (501), a plug plate (502) is connected below one side of the fixing portion (501), and a hole matching the spring pin shaft (406) is provided inside the plug plate (502).

9. A pouring device for producing ductile iron castings for automobiles according to claim 8, characterized in that: A scraper plate (7) is provided on one side of the interior of the outer barrel assembly (1), and a clamping block (701) is connected to the bottom end of the scraper plate (7), the scraper plate (7) is in contact with the grille shovel (503), and the clamping block (701) is in contact with the movable pin shaft (405).

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