High-temperature-resistant clean casting riser

Abstract

The utility model discloses a high-temperature-resistant clean casting riser, and relates to the technical field of casting equipment. The base is mounted at the top of the cavity, and an inner hole is formed in the center of the top of the base; the number of the semi-circular-ring-shaped casting heads is two, and the bottoms of the two semi-circular-ring-shaped casting heads are both arranged in the inner hole opening. The high-temperature-resistant clean casting riser can be repeatedly used, is stable in structure and difficult to erode, ensures that feed liquid poured into a cavity is clean, not only plays a role in casting, but also can replace a weight to play a role in preventing box expansion due to the fact that the casting riser is combined with the base, and the high-temperature-resistant clean casting riser has the advantages that the two semi-circular-ring-shaped casting risers are matched for use; no other fastening measures are taken, the riser material and the casting head can be naturally separated conveniently after casting, no auxiliary tool is needed, the riser material is clean and free of impurities and can be directly returned to a furnace for use, the inherent quality of products is improved, and a large amount of labor cost is saved.

Description

Technical Field

[0001] The utility model relates to the technical field of casting equipment, in particular to a high-temperature resistant clean casting riser. Background Art

[0002] A riser is a structure used to store molten metal during the casting process. It is used to compensate for possible shrinkage during the casting process, prevent shrinkage holes in the casting, and also has the functions of venting, collecting slag, and guiding filling. The riser is usually connected to the mold used for the casting, and the molten metal enters the mold through the riser for casting and forming.

[0003] The authorization publication number "CN211218655U" records "a splash-proof casting riser, including a work frame and a mold, a gate is provided on the mold, the work frame includes a base and a workbench, one end of the workbench is hinged on the first bracket, and a cylinder is installed between the other end and the base, the two ends of the cylinder are hinged to the workbench and the base respectively, and the workbench is installed with a liquid separation mechanism on one side of the gate, the cross bar is tilted, and the horizontal height of the end close to the gate is higher than the end away from the gate, a slide groove is horizontally opened on the cross bar, and a strip hole is opened on the side wall of the slide groove, a sliding platform is provided in the slide groove, and the side walls of the sliding platform on opposite sides are provided with convex columns, which are inserted into the corresponding strip holes, and a liquid separation needle is fixedly provided on the sliding platform near the gate, and a supporting cylinder is fixedly installed on the sliding platform, and the supporting cylinder is movably filled with counterweight steel balls. Its purpose is to solve the problem of easy splashing of molten metal caused by the structural defects of the existing casting riser."

[0004] The above patent solves the problem of molten metal splashing caused by structural defects of existing casting risers. However, traditional casting risers for refractory materials are made of water glass or resin combined with quartz sand. Such casting risers have the following defects:

[0005] 1. A large amount of gas is generated during casting and penetrates into the product, affecting product quality;

[0006] 2. Disposable, daily on-site production, time-consuming and labor-intensive;

[0007] 3. During casting, under the action of high temperature and the erosion of liquid, the molding sand on the casting riser wall is easy to collapse, and the scattered sand particles flow into the mold cavity, causing sand inclusion in the product;

[0008] 4. The products are seriously sticky with sand after being shipped out of the box, and a lot of manual sand cleaning is required. Utility Model Content

[0009] The utility model provides a high-temperature resistant clean casting riser, which is reusable, has a stable structure, is difficult to be corroded, and ensures that the material liquid poured into the mold cavity is clean. The casting riser is combined with the base, which not only plays a casting role, but also can replace the iron weight and play the role of an anti-expansion box. The two semicircular ring-shaped casting risers are used in combination without other fastening measures. After casting, the riser material is naturally separated from the casting riser without the help of auxiliary tools. The riser material is clean and free of impurities and can be directly recycled, thereby improving the intrinsic quality of the product and saving a lot of labor costs.

[0010] To achieve the above objectives, the present invention is implemented through the following technical solutions: a high temperature resistant clean casting riser, comprising:

[0011] cavity;

[0012] A base is installed on the top of the cavity, and an inner opening is opened at the center of the top of the base;

[0013] There are two semi-circular annular pouring risers, the bottoms of the two semi-circular annular pouring risers are both located in the inner hole, and the outer surfaces of the two semi-circular annular pouring risers are fixedly connected with three limit blocks at equal distances;

[0014] A butt joint mechanism is provided on the two semicircular annular pouring risers for butting and merging the two semicircular annular pouring risers; and

[0015] The hoisting mechanism is provided with multiple groups, and every two groups of the hoisting mechanism are arranged on each semicircular annular pouring riser for hoisting each semicircular annular pouring riser.

[0016] Furthermore, the top edges of both ends of the base are fixedly connected with pull bars, and the outer surfaces of the two pull bars are fixedly connected with lifting ears on the sides away from each other.

[0017] Furthermore, the docking mechanism includes multiple docking blocks and multiple docking grooves, every two of the docking blocks are fixedly connected to each semicircular annular pouring riser, every two of the docking grooves are opened on each semicircular annular pouring riser, and each of the docking blocks is movably inserted in each docking groove.

[0018] Furthermore, each group of the lifting mechanisms includes a screw eye and a connecting component, the connecting component is arranged on the semicircular ring-shaped pouring riser, and the screw eye is arranged on the connecting component.

[0019] Furthermore, the connecting component includes a screw hole and a bolt, the screw hole is opened at the top of the semicircular ring-shaped pouring spout, and the bolt is threadedly connected in the screw hole.

[0020] The utility model provides a high temperature resistant clean casting riser with the following beneficial effects:

[0021] (1) The high temperature resistant clean casting riser is reusable, has a stable structure, is difficult to be corroded, and ensures that the liquid poured into the cavity is clean. The combination of the casting riser and the base not only plays a casting role, but also can replace the iron weight and play the role of an anti-expansion box.

[0022] (2) The high temperature resistant clean casting riser is used in conjunction with two semicircular ring-shaped casting risers without any other fastening measures. After casting, the riser material and the casting riser are naturally separated without the aid of auxiliary tools. The riser material is clean and free of impurities and can be directly returned to the furnace for reuse, thereby improving the intrinsic quality of the product and saving a lot of labor costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is an exploded view of the utility model;

[0024] Figure 2 It is a three-dimensional diagram of the utility model;

[0025] Figure 3 This is a three-dimensional diagram of the lifting mechanism of the utility model;

[0026] Figure 4 This is a three-dimensional diagram of the base of the utility model;

[0027] Figure 5 This is a three-dimensional diagram of the semicircular ring-shaped pouring riser of the present invention.

[0028] In the figure: 1. Cavity; 2. Base; 3. Lifting ear; 4. Limit block; 5. Semicircular ring-shaped pouring riser; 6. Screw hole; 7. Bolt; 8. Screw eye; 9. Docking block; 10. Docking groove; 11. Inner hole; 12. Pull bar block. DETAILED DESCRIPTION

[0029] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of them. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts are within the scope of protection of the present invention.

[0030] See also Figure 1-5 The utility model provides a technical solution: a high temperature resistant clean casting riser, comprising:

[0031] Cavity 1;

[0032] The base 2 is installed on the top of the cavity 1, and an inner hole 11 is opened at the center of the top of the base 2;

[0033] There are two semicircular annular pouring risers 5, the bottoms of the two semicircular annular pouring risers 5 are both located in the inner opening 11, and the outer surfaces of the two semicircular annular pouring risers 5 are fixedly connected with three limit blocks 4 at equal distances;

[0034] A butt joint mechanism is provided on the two semicircular annular pouring risers 5 for butting and merging the two semicircular annular pouring risers 5; and

[0035] There are multiple sets of hoisting mechanisms, and every two sets of hoisting mechanisms are arranged on each semicircular annular pouring riser 5 for hoisting each semicircular annular pouring riser 5 .

[0036] In this embodiment: the base 2 and the semicircular annular pouring riser 5 are both cast with HT200. During casting, even if high-temperature liquid is washed onto the pouring riser, the pouring riser will not collapse. Moreover, due to the high freezing point of the molten zirconium corundum liquid, the liquid splashed onto the side wall around the pouring riser will quickly form a crust to form a protective layer to protect the side wall of the pouring riser from being eroded by the high-temperature liquid. Therefore, it can ensure that clean liquid is poured into the mold cavity 1. The base 2 not only plays the role of fixing the pouring riser, but also plays the role of pressing iron to prevent the liquid from expanding upward. The middle thickness of the base 2 is 100mm. The shape of the semicircular annular pouring riser 5 is large at the top and small at the bottom. The semicircular annular pouring risers 5 are combined into a complete pouring riser, and the bottom surface of the limit block 4 is 100 mm away from the bottom surface of the semicircular annular pouring riser 5, ensuring that the bottom surface of the limit block 4 to the bottom of the semicircular annular pouring riser 5 is connected to the inner orifice 11. The diameter of the inner orifice 11 is slightly larger than the diameter of the lower part of the complete pouring riser. The lower part of the complete pouring riser is embedded in the inner orifice 11 of the base 2, forming a pouring riser with a base 2 and not separated. The limit block 4 ensures the effective depth of the complete pouring riser embedded in the base 2. The length of the base 2 is basically the same as the width of the cavity 1, ensuring that the base 2 is placed on the two side walls of the cavity 1 so as not to collapse the cover plate of the cavity 1.

[0037] Specifically, the top edges of both ends of the base 2 are fixedly connected with the pull bars 12 , and the outer surfaces of the two pull bars 12 are fixedly connected with the lifting ears 3 on the sides away from each other.

[0038] In this embodiment, the bracing block 12 ensures the structural strength of the base 2 during lifting, and the lifting ears 3 at both ends facilitate lifting of the base 2.

[0039] Specifically, the docking mechanism includes multiple docking blocks 9 and multiple docking grooves 10, every two docking blocks 9 are fixedly connected to each semicircular annular pouring riser 5, every two docking grooves 10 are opened on each semicircular annular pouring riser 5, and each docking block 9 is movably inserted in each docking groove 10.

[0040] In this embodiment, the docking blocks 9 and the docking grooves 10 correspond one to one, so that the two semicircular ring-shaped pouring risers 5 are integrated into one, thereby ensuring stability during use.

[0041] Specifically, each set of lifting mechanisms includes a screw eye 8 and a connecting component. The connecting component is arranged on the semicircular ring-shaped pouring riser 5, and the screw eye 8 is arranged on the connecting component.

[0042] In this embodiment, the screw eye 8 is convenient for crane lifting, and the screw eye 8 is placed at the center of gravity of the pouring riser. When lifting, the pouring riser remains in a vertical downward state.

[0043] Specifically, the connecting component includes a screw hole 6 and a bolt 7 . The screw hole 6 is opened at the top of the semicircular ring-shaped pouring riser 5 , and the bolt 7 is threadedly connected in the screw hole 6 .

[0044] In this embodiment, the bolt 7 is M24, usually made of carbon steel or alloy steel. The screw eye 8 is installed on the semicircular ring-shaped pouring riser 5 through the mutual cooperation between the screw hole 6 and the bolt 7.

[0045] When in use, the base 2 is installed on the top of the cavity 1, and the two semicircular annular pouring risers 5 are combined into one through the one-to-one correspondence between the docking block 9 and the docking groove 10, and the bolt 7 is rotated into the screw hole 6 to ensure the installation of the screw ring 8, which is convenient for crane lifting. The complete pouring riser is lifted so that its bottom is placed in the inner hole 11, and the position of the complete pouring riser on the base 2 is limited by the limit block 4 to ensure the use effect. After completion, pouring is carried out. After casting, the base 2 is hung on the lifting ear 3 of the crane hook, and the base 2 is lifted to a special site. The pouring riser screw ring 8 is hung on the crane hook, and the pouring riser is lifted out of the base 2. After placing it on the ground, the two semicircular annular pouring risers 5 are naturally separated, and the solidified riser material is clean and free of impurities and can be directly returned to the furnace for use.

[0046] The control method of the present invention is to manually start and stop the switch. The wiring diagram of the power element and the provision of power supply are common knowledge in the field. Moreover, the present invention is mainly used to protect mechanical devices. Therefore, the control method and wiring arrangement are not explained in detail in the present invention.

[0047] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A high temperature resistant clean casting riser, characterized in that: include: Cavity (1); A base (2), the base (2) being installed on the top of the cavity (1), and an inner opening (11) is provided at the center of the top of the base (2); Two semicircular annular pouring risers (5) are provided, the bottoms of the two semicircular annular pouring risers (5) are both located in the inner opening (11), and the outer surfaces of the two semicircular annular pouring risers (5) are fixedly connected with three limit blocks (4) at equal distances; A butt joint mechanism is provided on the two semicircular annular pouring risers (5) and is used for butt jointing and merging the two semicircular annular pouring risers (5); as well as The hoisting mechanism is provided in multiple groups, and each two groups of the hoisting mechanism are provided on each semicircular annular pouring riser (5) for hoisting each semicircular annular pouring riser (5).

2. A high temperature resistant clean casting riser according to claim 1, characterized in that: The top two end edges of the base (2) are fixedly connected with pull bars (12), and the outer surfaces of the two pull bars (12) are fixedly connected with lifting ears (3) on the sides away from each other.

3. A high temperature resistant clean casting riser according to claim 2, characterized in that: The docking mechanism comprises a plurality of docking blocks (9) and a plurality of docking grooves (10), wherein each two of the docking blocks (9) are fixedly connected to each semicircular annular pouring riser (5), each two of the docking grooves (10) are opened on each semicircular annular pouring riser (5), and each of the docking blocks (9) is movably inserted into each docking groove (10).

4. A high temperature resistant clean casting riser according to claim 3, characterized in that: Each group of the hoisting mechanisms comprises a screw hoist ring (8) and a connecting component, wherein the connecting component is arranged on a semicircular annular pouring riser (5), and the screw hoist ring (8) is arranged on the connecting component.

5. A high temperature resistant clean casting riser according to claim 4, characterized in that: The connecting component comprises a screw hole (6) and a bolt (7); the screw hole (6) is opened at the top of the semicircular ring-shaped pouring riser (5); and the bolt (7) is threadedly connected in the screw hole (6).

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