An alloy adding device for ductile cast iron casting

Abstract

The application discloses a nodular cast iron alloy adding device for casting, and belongs to the casting technical field.The device comprises a protection mechanism, an adding mechanism is assembled on the protection mechanism, the protection mechanism comprises an assembling plate, a lower guide pipe is installed on the assembling plate in a penetrating manner, a movable cover assembly is arranged below the assembling plate, and a cross type protection assembly is arranged on the movable cover assembly.The nodular cast iron alloy adding device for casting is characterized in that the cross type protection assembly is unfolded by the resistance of the assembling plate when the ladle rises and contacts the lower cover, the two scrapers are away from each other, the surface dross can be removed, the alloy wire rod is prevented from being blocked or mixed with the dross, the wire rod is ensured to be smoothly sent into the molten iron, the alloy absorption rate and the adding stability are improved, and secondly, when the ladle is taken away from below the device, the cross type protection assembly is automatically closed to protect the bottom of the guide pipe and the alloy wire rod, the workshop dust and the iron scrap pollution can be effectively isolated, and impurities are prevented from entering the molten iron along the guide pipe.

Description

Technical Field

[0001] This invention relates to the field of casting technology, and in particular to an alloy addition device for ductile iron casting. Background Technology

[0002] In the casting process of ductile iron, the wire feeder is the core equipment for accurately adding spheroidizing agents, inoculants, and other alloys into the molten iron ladle. It delivers alloy wire into the molten iron through a conduit, thereby improving the mechanical properties of ductile iron. However, existing alloy addition devices still have some problems: when not feeding wire, the end of the conduit is exposed, making it susceptible to contamination by workshop dust and iron filings. Furthermore, before wire feeding begins, slag on the surface of the molten iron ladle tends to accumulate in the feeding area, causing obstruction of wire insertion or mixing of alloy with slag, affecting the alloy absorption rate. At the same time, wire conveying is mostly a single axial movement, making it difficult to remove dust and impurities adhering to the surface. This can not only contaminate the molten iron but also increase downward resistance due to the rough surface of the wire, leading to unstable feeding speeds. This makes it difficult to meet the requirements of "precise, stable, and clean" alloy addition in ductile iron casting. Therefore, it is of great significance to study a new alloy addition device for ductile iron casting to solve the above problems. Summary of the Invention

[0003] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the invention.

[0004] In view of the problems mentioned above and / or existing casting methods, the present invention is proposed.

[0005] Therefore, the technical problem to be solved by the present invention is that when the existing alloy adding device is not feeding wire, the end of the guide tube is exposed and is easily contaminated by workshop dust and iron filings. In addition, before the wire feeding begins, the slag on the surface of the molten iron ladle is easily accumulated in the wire feeding area, which leads to the wire insertion being obstructed or the alloy being mixed with the slag, affecting the alloy absorption rate. At the same time, the wire conveying is mostly a single axial movement, and the dust and impurities attached to the surface are difficult to remove effectively.

[0006] To achieve the above objectives, the present invention provides the following technical solution: an alloy addition device for ductile iron casting, comprising a protective mechanism, wherein an addition mechanism is mounted on the protective mechanism;

[0007] The protective mechanism includes an assembly plate, on which a lower guide tube is installed. A movable cover assembly is provided below the assembly plate, and a cross-type protective assembly is provided on the movable cover assembly. The two protective covers of the cross-type protective assembly protect the bottom end of the lower guide tube.

[0008] The adding mechanism includes a housing, which is fixedly connected to an assembly plate. A dust removal component is provided in the housing, and the cylindrical suction head of the dust removal component is arranged around the alloy wire. A conveying component is provided in the housing, which conveys the alloy wire. The first gear of the conveying component meshes with the second gear of the reciprocating motion component, and the roller of the reciprocating motion component is fixedly connected to the support of the conveying component.

[0009] As a further aspect of the present invention: the movable cover assembly includes a lower cover, and four guide rods are fixedly connected to the upper part of the lower cover. The guide rods are slidably connected to the guide sleeve, and the guide sleeve is mounted on the assembly plate.

[0010] As a further embodiment of the present invention: two through holes are provided on the lower cover, a sleeve is installed on the lower cover, and the lower guide tube is slidably connected in the sleeve.

[0011] As a further embodiment of the present invention: the cross-type protective assembly includes two cross plates, the cross plates are disposed in the through holes, one end of the cross plate is provided with a rotating roller, the rotating roller overlaps with the assembly plate, and the two cross plates are hinged by a pin shaft, the two cross plates are provided with openings, and the lower guide tube is provided through the openings;

[0012] A spring is fixedly connected to the bottom of the cross plate, and the bottom end of the spring is fixedly connected to the lower cover.

[0013] As a further embodiment of the present invention: a protective cover is fixedly connected to the other end of the cross plate, the two protective covers overlap, and a scraper is fixedly connected to the lower part of the protective cover. The scraper has an L-shaped structure.

[0014] As a further embodiment of the present invention: an upper conduit is installed above the outer casing, and the top end of the lower conduit is installed below the outer casing, with alloy wires threaded through the upper and lower conduits.

[0015] As a further aspect of the present invention: the dust removal assembly includes a dust removal device, which is disposed in the housing. The dust removal device is connected to a cylindrical suction head through a pipe. A brush is disposed in the cylindrical suction head, and the brush overlaps with the alloy wire.

[0016] As a further aspect of the present invention: the conveying assembly includes two polygonal shafts, each of which is fixedly connected to a first gear at both ends. The two ends of the two polygonal shafts are respectively rotatably mounted on two fixed frames via bearings, and the fixed frames are fixedly connected to the outer casing.

[0017] One of the polygonal shafts is fixedly connected to the output shaft of the motor, and the motor is installed in the housing.

[0018] As a further embodiment of the present invention: a polygonal sleeve is fitted on the polygonal shaft, a conveying wheel is installed on the polygonal sleeve, the conveying wheel overlaps with the alloy wire, the polygonal sleeve is rotatably mounted on the bracket through a bearing, the bracket is slidably connected to the slide rod, and the two ends of the slide rod are respectively fixedly connected to two brackets.

[0019] As a further aspect of the present invention: the reciprocating motion assembly includes a drive shaft, both ends of which are rotatably mounted on two fixed frames via bearings, and both ends of the drive shaft are fixedly connected to a second gear. An arc-shaped groove is provided on the drive shaft, and a roller is slidably connected within the arc-shaped groove.

[0020] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0021] 1. This alloy addition device for ductile iron casting uses the rising ladle to contact the lower cover, causing the cross-type protective components to unfold due to the resistance of the assembly plate. This moves the two scrapers away from each other, removing surface slag and preventing the alloy wire from being obstructed during insertion or from mixing with the slag. This ensures the wire is smoothly fed into the molten iron, improving the alloy absorption rate and addition stability. Secondly, when the ladle is removed from below the device, the cross-type protective components automatically close to protect the bottom of the guide tube and the alloy wire, effectively isolating the workshop dust and iron filings from contamination and preventing impurities from entering the molten iron through the guide tube.

[0022] 2. This alloy addition device for ductile iron casting drives the reciprocating motion component through the conveying component. The roller, in conjunction with the arc groove, drives the support to reciprocate, which in turn drives the conveying wheel to reciprocate. The conveying wheel then drives the alloy wire to rotate back and forth. The rotation of the alloy wire increases the cleaning effect of the brush and, in conjunction with the dust removal equipment, removes dust, preventing impurities from contaminating the molten iron and affecting the quality of the casting. On the other hand, the rotation of the alloy wire is more conducive to the smooth downward movement of the wire, ensuring uniform feeding speed and improving feeding and conveying efficiency.

[0023] 3. This alloy addition device for ductile iron casting conveys alloy wire downwards via a conveying component. This conveying component, in conjunction with a reciprocating motion component, rotates the alloy wire downwards, facilitating dust removal. As the molten iron ladle rises, it pushes up the movable cover component, automatically unfolding the cross-type protective component to remove slag at the wire feeding location. After addition, the cross-type protective component automatically closes to protect the lower guide tube and the bottom of the alloy wire. This dual protection of cleaning and protection ensures stable wire feeding throughout the process, achieving a seamless integration of clean protection and efficient conveying, providing a stable and clean alloy addition solution for ductile iron casting. Attached Figure Description

[0024] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the following description of the embodiments will be briefly introduced. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Wherein:

[0025] Figure 1 This is a three-dimensional structural diagram of an alloy addition device for ductile iron casting, as described in an embodiment of the present invention.

[0026] Figure 2 This is a schematic diagram of the connection between the assembly plate and the protective cover assembly in an alloying device for ductile iron casting, as described in an embodiment of the present invention.

[0027] Figure 3 This is a three-dimensional cross-sectional structural diagram of an alloy addition device for ductile iron casting, as described in an embodiment of the present invention.

[0028] Figure 4 This is a schematic diagram of the structure of the lower cover in an alloying device for ductile iron casting, as described in an embodiment of the present invention.

[0029] Figure 5 This is a three-dimensional cross-sectional structural diagram of a cross-shaped protective component in an alloy addition device for ductile iron casting, as described in an embodiment of the present invention.

[0030] Figure 6 This is a three-dimensional structural diagram of the outer shell of an alloying device for ductile iron casting, as described in an embodiment of the present invention.

[0031] Figure 7 This is a three-dimensional cross-sectional structural diagram of the outer shell of an alloying device for ductile iron casting, as described in an embodiment of the present invention.

[0032] Figure 8 This is a three-dimensional structural schematic diagram of the conveying component in an alloy adding device for ductile iron casting, as described in an embodiment of the present invention.

[0033] Figure 9 An alloy additive device for ductile iron casting as described in the embodiments provided by the present invention Figure 8 An enlarged structural diagram of point A.

[0034] In the diagram: 100, Protective mechanism; 101, Assembly plate; 102, Movable cover assembly; 1021, Guide sleeve; 1022, Guide rod; 1023, Lower cover; 1024, Through hole; 1025, Tube sleeve; 103, Cross-type protective assembly; 1031, Protective cover; 1032, Scraper; 1033, Cross plate; 1034, Spring; 1035, Rotary roller; 104, Lower guide tube; 200, Adding mechanism; 201, Outer shell; 202, Reciprocating motion assembly; 2021, Second gear; 2022, Drive shaft; 2023, Arc groove; 2024, Roller; 203, Dust removal assembly; 2031, Dust removal equipment; 2032, Columnar suction head; 2033, Brush; 204, Upper guide tube; 205, Conveying assembly; 2051, Motor; 2052, First gear; 2053, Polygonal shaft; 2054, Slide rod; 2055, Polygonal sleeve; 2056, Bracket; 2057, Conveying wheel; 2058, Fixing frame. Detailed Implementation

[0035] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0036] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the invention is not limited to the specific embodiments disclosed below.

[0037] Secondly, the present invention will be described in detail with reference to the schematic diagrams. When describing the embodiments of the present invention, for ease of explanation, the cross-sectional views illustrating the device structure will be partially enlarged, not according to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of the present invention. In addition, actual fabrication should include the three-dimensional spatial dimensions of length, width, and depth.

[0038] Furthermore, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places throughout this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that mutually excludes other embodiments.

[0039] Example 1

[0040] like Figures 1-6 As shown, the present invention provides a technical solution: an alloy addition device for ductile iron casting, including a protective mechanism 100, on which an addition mechanism 200 is mounted;

[0041] The protective mechanism 100 includes an assembly plate 101, on which a lower guide tube 104 is installed. A movable cover assembly 102 is located below the assembly plate 101. The movable cover assembly 102 includes a lower cover 1023. Four guide rods 1022 are fixedly connected to the upper part of the lower cover 1023. The guide rods 1022 are slidably connected to guide sleeves 1021. The lower cover 1023 can move smoothly up and down by sliding the guide rods 1022 within the guide sleeves 1021. The guide sleeves 1021 are mounted on the assembly plate 101. The lower cover 1023 has two through holes 1024. A tube sleeve 1025 is installed on the lower cover 1023. The lower guide tube 1024... 4. A sliding connection is made within the sleeve 1025. The lower guide tube 104 slides within the sleeve 1025, allowing the lower cover 1023 to move smoothly. A cross-type protective assembly 103 is provided on the movable cover assembly 102. The cross-type protective assembly 103 includes two cross plates 1033. A protective cover 1031 is fixedly connected to the other end of each cross plate 1033. By closing the protective covers 1031 together, a sealed space is formed, thus protecting the bottom of the lower guide tube 104. The two protective covers 1031 overlap. A scraper 1032 is fixedly connected to the lower part of each protective cover 1031. The scraper 1032 has an L-shaped structure. The L-shaped design of plate 1032, with its staggered scraper blades, allows the scraper blades to open and form a rectangular space, effectively removing slag from the molten iron surface and isolating it. Furthermore, the scraper blades 1032, protective cover 1031, and lower cover 1023 are all made of high-temperature resistant materials. The cross plates 1033 are located within through holes 1024, allowing for smooth movement within these holes. A rotating roller 1035 is mounted at one end of each cross plate 1033, overlapping with the mounting plate 101. The two cross plates 1033 are hinged together by pins. The upper part has an opening, through which the lower conduit 104 passes. The opening ensures that the lower conduit 104 extends smoothly downward and allows the cross plate 1033 to move smoothly. A spring 1034 is fixedly connected to the lower part of the cross plate 1033. The spring 1034 can drive the cross plate 1033 to close, so that the protective cover 1031 closes to protect the alloy wire at the bottom of the lower conduit 104. The two scrapers 1032 automatically close, which facilitates subsequent unfolding and automatic removal of scum. The bottom end of the spring 1034 is fixedly connected to the lower cover 1023. The two protective covers 1031 of the cross-type protective assembly 103 protect the bottom end of the lower conduit 104.

[0042] The adding mechanism 200 includes a housing 201, an upper guide tube 204 mounted on the top of the housing 201, and the top end of a lower guide tube 104 mounted below the housing 201. Alloy wires are threaded through the upper and lower guide tubes 204 and 104, which guide the alloy wires. The housing 201 is fixedly connected to the mounting plate 101. A dust removal component 203 is provided in the housing 201. The cylindrical suction head 2032 of the dust removal component 203 is arranged around the alloy wires. A conveying component 205 is provided in the housing 201. The conveying component 205 conveys the alloy wires. The first gear 2052 of the conveying component 205 meshes with the second gear 2021 of the reciprocating motion component 202. The roller 2024 of the reciprocating motion component 202 is fixedly connected to the bracket 2056 of the conveying component 205.

[0043] In this embodiment, the processing lifting equipment drives the molten iron ladle to rise and contact the lower cover 1023. The rotating roller 1035 is resisted by the assembly plate 101, which drives the two cross plates 1033 to unfold. The cross plates 1033 drive the protective cover 1031 to unfold, and the two scrapers 1032 move away from each other. The scrapers 1032 can remove the surface slag, prevent the alloy wire from being blocked from insertion or the alloy from mixing with the slag, ensure that the wire is smoothly fed into the molten iron, and improve the alloy absorption rate and addition stability.

[0044] When the lifting equipment removes the molten iron ladle from below the device, the spring 1034 drives the cross plate 1033 to close, causing the cross plate 1033 to automatically close the protective cover 1031. The protective cover 1031 can protect the bottom of the guide tube and alloy wire, effectively isolating the workshop dust and iron filings from contamination and preventing impurities from entering the molten iron with the guide tube.

[0045] Example 2

[0046] Combination Figures 7-9 Therefore, it is concluded that: the dust removal component 203 includes a dust removal device 2031, which is installed in the housing 201. The dust removal device 2031 can perform the function of dust collection, preventing impurities from drifting and affecting the environment, and preventing secondary pollution of the alloy wire. At the same time, the dust removal device 2031 can automatically collect dust and is equipped with a dust collection chamber cover. The dust inside can be cleaned by opening the dust collection chamber cover. The dust removal device 2031 is connected to the cylindrical suction head 2032 through a pipe. The cylindrical suction head 2032 is equipped with a brush 2033, which overlaps with the alloy wire.

[0047] The conveying assembly 205 includes two polygonal shafts 2053, each with a first gear 2052 fixedly connected to both ends. Both ends of the two polygonal shafts 2053 are rotatably mounted on two fixed frames 2058 via bearings. The polygonal shafts 2053 can maintain stable rotation via the bearings, allowing them to drive the polygonal sleeve 2055 to rotate stably. The fixed frames 2058 are fixedly connected to the housing 201. One of the polygonal shafts 2053 is fixedly connected to the output shaft of a motor 2051, which is installed in the housing 201. The polygonal sleeve 2055 is fitted onto the polygonal shaft 2053. The polygonal structure of the polygonal shaft 2053 and the polygonal sleeve 2055 allows the polygonal shaft 2053 to smoothly carry... The movable polygonal sleeve 2055 rotates and can slide on the polygonal shaft 2053, so that the conveyor wheel 2057 can smoothly reciprocate. The conveyor wheel 2057 is installed on the polygonal sleeve 2055. The conveyor wheel 2057 can be designed with rubber material so that the conveyor wheel 2057 can smoothly feed the alloy wire. Moreover, the friction can be increased to smoothly drive the alloy wire to reciprocate. The conveyor wheel 2057 overlaps with the alloy wire. The polygonal sleeve 2055 is rotatably mounted on the bracket 2056 through the bearing. The bracket 2056 is slidably connected to the slide rod 2054. The bracket 2056 can maintain stable sliding on the slide rod 2054. The two ends of the slide rod 2054 are respectively fixedly connected to the two brackets 2056.

[0048] The reciprocating motion assembly 202 includes a drive shaft 2022. Both ends of the drive shaft 2022 are rotatably mounted on two fixed frames 2058 via bearings. Both ends of the drive shaft 2022 are fixedly connected to a second gear 2021. An arc-shaped groove 2023 is provided on the drive shaft 2022. Through the arc surface design of the arc-shaped groove 2023, the rotation of the drive shaft 2022 can smoothly drive the roller 2024 to achieve translational motion. The two ends of the arc-shaped groove 2023 are closed, thereby realizing the reciprocating motion of the roller 2024. The roller 2024 is slidably connected inside the arc-shaped groove 2023.

[0049] In this embodiment: the motor 2051 drives the polygonal shaft 2053, which in turn drives the first gear 2052 to rotate. This causes the two first gears 2052 to drive each other, which in turn drives the second gear 2021 to rotate. The second gear 2021 then drives the transmission shaft 2022 to rotate. The transmission shaft 2022 drives the roller 2024 to reciprocate through the arc groove 2023. The roller 2024 then drives the conveyor wheel 2057 to reciprocate through the bracket 2056. This causes the conveyor wheel 2057 to rotate the alloy wire back and forth. The rotation of the alloy wire increases the cleaning effect of the brush 2033. Combined with the dust removal equipment 2031, this removes dust and prevents impurities from contaminating the molten iron and affecting the quality of the casting. Furthermore, the rotation of the alloy wire facilitates a smooth downward movement of the wire, ensuring a uniform feeding speed and improving the feeding and conveying efficiency.

[0050] Example 3

[0051] Combination Figures 1-3 and Figures 6-7 It is concluded that: the protective mechanism 100 includes an assembly plate 101, a lower guide tube 104 is installed on the assembly plate 101, a movable cover assembly 102 is provided below the assembly plate 101, a cross-type protective assembly 103 is provided on the movable cover assembly 102, and the two protective covers 1031 of the cross-type protective assembly 103 protect the bottom end of the lower guide tube 104.

[0052] The adding mechanism 200 includes a housing 201, which is fixedly connected to the assembly plate 101. A dust removal component 203 is provided in the housing 201. The cylindrical dust suction head 2032 of the dust removal component 203 is arranged around the alloy wire. A conveying component 205 is provided in the housing 201. The conveying component 205 performs conveying operations on the alloy wire. The first gear 2052 of the conveying component 205 meshes with the second gear 2021 of the reciprocating motion component 202. The roller 2024 of the reciprocating motion component 202 is fixedly connected to the bracket 2056 of the conveying component 205.

[0053] In this embodiment: the alloy wire is conveyed downward by the conveying component 205, and the conveying component 205 also works with the reciprocating motion component 202 to realize the reciprocating rotation and downward movement of the alloy wire, thereby facilitating the dust removal effect of the dust removal component 203. When the molten iron ladle rises, it can push the movable cover component 102 upward, so that the cross-type protection component 103 can automatically unfold and remove the floating slag at the wire feeding position. After addition, the cross-type protection component 103 automatically closes to protect the bottom of the lower guide tube 104 and the alloy wire. In this way, through the dual protection of cleaning and protection, the entire wire feeding process can be kept stable, and a seamless connection between clean protection and efficient conveying can be achieved, providing a stable and clean alloy addition solution for ductile iron casting.

[0054] The working principle of this invention is as follows: When adding alloy wire, the molten iron ladle is lifted by the lifting equipment, so that the scraper 1032 contacts the molten iron in the ladle, and the molten iron ladle contacts the lower cover 1023, so that the lower cover 1023 moves upward, and the rotating roller 1035 is blocked by the assembly plate 101, which can drive the cross plate 1033 to unfold. The cross plate 1033 drives the spring 1034 to deform, so that the cross plate 1033 drives the scraper 1032 to move through the protective cover 1031. The scraper 1032 can separate and scrape off the slag on the surface of the molten iron.

[0055] Then, motor 2051 drives polygonal shaft 2053 to rotate, polygonal shaft 2053 drives first gear 2052 to rotate, so that the two first gears 2052 are driven to rotate, so that the two polygonal shafts 2053 synchronously drive polygonal sleeve 2055 to rotate, so that conveyor wheel 2057 can rotate to convey alloy wire downward. Moreover, first gear 2052 and second gear 2021 are driven to rotate drive shaft 2022. Drive shaft 2022 drives roller 2024 to reciprocate through arc groove 2023, so that roller 2024 drives bracket 2056 to reciprocate, so that conveyor wheel 2057 drives alloy wire to reciprocate. The reciprocating transmission of alloy wire can increase the cleaning effect of brush 2033, and dust removal equipment 2031 can remove dust through columnar dust suction head 2032. After dust removal, alloy wire can be smoothly added downward into molten iron ladle.

[0056] After the addition is completed, the molten iron ladle is removed by lifting equipment, and the spring 1034 drives the two cross plates 1033 to merge, so that the protective cover 1031 can be closed to protect the lower part of the lower guide tube 104.

[0057] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible (e.g., changes in the size, dimensions, structure, shape, and proportions of various elements, as well as parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of elements may be inverted or otherwise altered, and the nature or number or position of discrete elements may be changed or altered. Therefore, all such modifications are intended to be included within the scope of the invention. The order or sequence of any process or method steps may be changed or rearranged according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and not only structurally equivalent but also equivalent in structure. Other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments without departing from the scope of the invention. Therefore, the present invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0058] Furthermore, in order to provide a concise description of exemplary embodiments, not all features of actual embodiments (i.e., those features that are not relevant to the currently considered best mode for carrying out the invention, or those features that are not relevant to implementing the invention) may be omitted.

[0059] It should be understood that numerous specific implementation decisions can be made during the development of any practical implementation, such as in any engineering or design project. Such development efforts may be complex and time-consuming, but for those skilled in the art who benefit from this disclosure, the development effort will be a routine work of design, manufacturing, and production without requiring much experimentation.

[0060] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. An alloy addition device for ductile iron casting, characterized in that: Includes a protective mechanism (100), on which an adding mechanism (200) is mounted; The protective mechanism (100) includes an assembly plate (101), on which a lower guide tube (104) is installed. A movable cover assembly (102) is provided below the assembly plate (101), and a cross-type protective assembly (103) is provided on the movable cover assembly (102). The two protective covers (1031) of the cross-type protective assembly (103) protect the bottom end of the lower guide tube (104). The adding mechanism (200) includes a housing (201) which is fixedly connected to the assembly plate (101). A dust removal component (203) is provided in the housing (201). The cylindrical dust suction head (2032) of the dust removal component (203) is arranged around the alloy wire. A conveying component (205) is provided in the housing (201). The conveying component (205) performs conveying operations on the alloy wire. The first gear (2052) of the conveying component (205) meshes with the second gear (2021) of the reciprocating motion component (202). The roller (2024) of the reciprocating motion component (202) is fixedly connected to the bracket (2056) of the conveying component (205). The conveying assembly (205) includes two polygonal shafts (2053), both ends of which are fixedly connected to a first gear (2052). Both ends of the two polygonal shafts (2053) are rotatably mounted on two fixed frames (2058) via bearings. The fixed frames (2058) are fixedly connected in the outer shell (201). One of the polygonal shafts (2053) is fixedly connected to the output shaft of the motor (2051), which is installed in the housing (201); A polygonal sleeve (2055) is fitted on the polygonal shaft (2053), and a conveyor wheel (2057) is installed on the polygonal sleeve (2055). The conveyor wheel (2057) overlaps with the alloy wire. The polygonal sleeve (2055) is rotatably mounted on the bracket (2056) through a bearing. The bracket (2056) is slidably connected to the slide rod (2054), and the two ends of the slide rod (2054) are respectively fixedly connected to the two brackets (2056). The reciprocating motion assembly (202) includes a drive shaft (2022), both ends of which are rotatably mounted on two fixed frames (2058) via bearings. Both ends of the drive shaft (2022) are fixedly connected to a second gear (2021). An arc-shaped groove (2023) is provided on the drive shaft (2022), and a roller (2024) is slidably connected in the arc-shaped groove (2023).

2. The alloy addition device for ductile iron casting as described in claim 1, characterized in that: The movable cover assembly (102) includes a lower cover (1023), and four guide rods (1022) are fixedly connected above the lower cover (1023). The guide rods (1022) are slidably connected to the guide sleeve (1021), and the guide sleeve (1021) is mounted on the assembly plate (101).

3. The alloy addition device for ductile iron casting as described in claim 2, characterized in that: The lower cover (1023) has two through holes (1024), and a sleeve (1025) is installed on the lower cover (1023). The lower guide tube (104) is slidably connected in the sleeve (1025).

4. The alloy addition device for ductile iron casting as described in claim 3, characterized in that: The cross-type protective assembly (103) includes two cross plates (1033), which are disposed in a through hole (1024). One end of the cross plate (1033) is provided with a rotating roller (1035), which overlaps with the assembly plate (101). The two cross plates (1033) are hinged by a pin. The two cross plates (1033) are provided with openings, and the lower guide tube (104) passes through the openings. A spring (1034) is fixedly connected to the bottom of the cross plate (1033), and the bottom end of the spring (1034) is fixedly connected to the lower cover (1023).

5. The alloy addition device for ductile iron casting as described in claim 4, characterized in that: The other end of the cross plate (1033) is fixedly connected to a protective cover (1031), the two protective covers (1031) overlap each other, and a scraper (1032) is fixedly connected to the bottom of the protective cover (1031). The scraper (1032) has an L-shaped structure.

6. The alloy addition device for ductile iron casting as described in claim 1, characterized in that: An upper conduit (204) is installed above the outer casing (201), and the top end of the lower conduit (104) is installed below the outer casing (201). Alloy wires are threaded through the upper conduit (204) and the lower conduit (104).

7. The alloy addition device for ductile iron casting as described in claim 1, characterized in that: The dust removal component (203) includes a dust removal device (2031), which is disposed in the housing (201). The dust removal device (2031) is connected to a cylindrical suction head (2032) through a pipe. A brush (2033) is provided in the cylindrical suction head (2032), and the brush (2033) overlaps with the alloy wire.

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