A gate cup

Abstract

A kind of sprue cup, including lower gasket ring, external shell is placed on lower gasket ring, the inside upper end of external shell is placed with filling piece, the inside lower end of external shell is equipped with inner liner ring, ceramic filter is equipped in inner liner ring, ceramic filter is placed on lower gasket ring, lower gasket ring is fired by alumina, filling piece is fired by alumina, external shell is made of cast iron, ceramic filter can play the role of blocking to slag in molten metal, to reduce the defects in casting.The outer part of the sprue cup is made of cast iron, thereby increasing the reuse frequency, and the internal components are also protected, the setting of the lower gasket ring provides a stable bottom for the placement of the sprue cup, and it is made of alumina, which improves its thermal shock resistance and avoids the problem of cracking.The filling piece plays a guiding role for the injection of molten metal, and the inner liner ring made of precoated sand molding can avoid the contact between molten metal and cast iron, while improving the heat insulation effect.

Description

Technical Field

[0001] This utility model relates to the field of metallurgical casting technology, and in particular to a pouring cup. Background Technology

[0002] The pouring cup is a key component of the casting gating system. It is used to receive the liquid metal poured from the ladle. By using a buffer flow to impact and separate impurities and increase the filling pressure head, it ensures that the molten metal enters the sprue smoothly.

[0003] Existing pouring cups come in funnel and basin shapes. The former has a weaker slag-blocking ability, while the latter is suitable for casting large parts. Currently, most pouring cups are made by molding sand pressing. Existing pouring cups made of cast iron are prone to cracking. High-purity corundum is used as the material for pouring cups, but when made of corundum, it is prone to breakage as the height and other dimensions of the pouring cup increase. Furthermore, existing pouring cups generally have a larger opening at the top than at the bottom, resulting in poor stability during placement. Utility Model Content

[0004] This utility model provides a pouring cup to overcome the shortcomings of the prior art and solve the defects of existing pouring cups, thus having strong practicality.

[0005] In order to achieve the purpose of this utility model, the following technology is proposed to be adopted: A pouring cup includes a lower support ring, an outer shell placed on the lower support ring, a filling component placed at the upper inner end of the outer shell, and an inner liner ring at the lower inner end of the outer shell. A ceramic filter is housed within the inner liner ring and placed on the lower support ring. The lower support ring and the filling component are both made of alumina. The outer shell is made of cast iron, and the inner liner ring is formed by pressing coated sand inside the outer shell. The ceramic filter has a porous, foam-like structure made of alumina. The ceramic filter effectively blocks slag from the molten metal, reducing defects in the casting. The cast iron exterior of the pouring cup increases its reusability and reinforces the internal components. The lower support ring provides a stable base for the pouring cup, improving its stability after placement, and its alumina construction enhances its resistance to thermal shock, preventing breakage. The injection component acts as a guide for the injection of molten metal, while the inner lining ring, formed by pressing coated sand, prevents the molten metal from contacting the cast iron and improves the heat insulation effect.

[0006] Furthermore, a tapered hole is provided on the lower pad ring, with the diameter of the upper end of the tapered hole being larger than the diameter of its lower end. A limiting protrusion is formed on the lower pad ring. The tapered hole increases the pressure of the molten metal during flow, so that it can be smoothly poured into the flow channel.

[0007] Furthermore, the outer shell includes a lower ring member with multiple through holes. A limiting protrusion passes through the through holes to improve the connection stability between the lower ring member and the lower pad ring. An upper extension tube is formed extending upward from the inner circumference of the lower ring member. A conical ring is formed at the upper end of the upper extension tube. The diameter of the upper end of the conical ring is larger than the diameter of its lower end. A raised edge is formed at the upper end of the conical ring. The conical ring facilitates the pouring of molten metal.

[0008] Furthermore, the upper outer wall of the extension tube is formed and connected to a feed pipe. The feed pipe, which is inclined upward on the outer end, facilitates the filling of sand and gravel into the gap between the extension tube and the filling part, so as to ensure the stability of the filling part after placement.

[0009] Furthermore, the filling component includes an upper ring placed on the flange, the inner circumference of the upper ring being formed with a conical hopper, the outer circumference of the conical hopper abutting against the inner wall of the conical ring, the diameter of the upper end of the conical hopper being larger than the diameter of its lower end, the lower end of the conical hopper being formed with a central connecting pipe, the lower end of the central connecting pipe being formed with a flared part, the flared part having a conical structure, the diameter of the upper end of the flared part being smaller than the diameter of its lower end, the lower end of the flared part being formed with a lower extension ring, the outer wall of the lower extension ring being formed with an annular groove, the conical hopper being provided to protect the outer shell below it, so as to prevent the molten metal from directly contacting the outer shell and affecting the strength of the outer shell, while the flared part increases the amount of molten metal above the ceramic filter, thereby facilitating its downward flow.

[0010] Furthermore, the lower wall of the upper ring is formed with multiple lower insert rods, and the protruding edge is provided with insertion holes. The insert rods are inserted into the insertion holes to prevent movement between the filling part and the outer shell.

[0011] Furthermore, an upper extension ring is formed on the inner circumference of the upper end of the inner liner ring. The upper extension ring is inserted into the ring groove to prevent molten metal from leaking outward through the gap between the inner liner ring and the lower extension ring, thus affecting the outer shell.

[0012] The advantages of the above technical solution are: This invention improves reusability and has the ability to intercept and block slag. Attached Figure Description

[0013] To make the objectives, technical solutions, and advantages of this utility model clearer, the following will provide a more detailed description of this utility model in conjunction with the accompanying drawings.

[0014] Figure 1 A three-dimensional structural diagram of one embodiment is shown.

[0015] Figure 2 A cross-sectional structural diagram of one embodiment is shown.

[0016] Figure 3 A three-dimensional structural diagram of the injection component is shown.

[0017] Figure 4 A three-dimensional structural diagram of the inner lining ring is shown. Detailed Implementation

[0018] like Figures 1-4 As shown, a pouring cup includes a lower gasket ring 1, an outer shell 2 placed on the lower gasket ring 1, a filling component 3 placed at the upper end of the inner side of the outer shell 2, and an inner liner ring 5 provided at the lower end of the inner side of the outer shell 2. A ceramic filter 4 is disposed within the inner liner ring 5 and placed on the lower gasket ring 1. The lower gasket ring 1 and the filling component 3 are both made of alumina. The outer shell 2 is made of cast iron. The inner liner ring 5 is formed by pressing coated sand inside the outer shell 2. The ceramic filter 4 has a porous foam-like structure made of alumina.

[0019] A tapered hole 10 is provided on the lower pad ring 1. The diameter of the upper end of the tapered hole 10 is larger than the diameter of its lower end. A limiting protrusion 11 is formed on the lower pad ring 1.

[0020] The outer shell 2 includes a lower ring 29, which has multiple through holes. A limiting protrusion 11 passes through the through holes. An upper extension tube 20 is formed extending upward from the inner circumference of the lower ring 29. A conical ring 22 is formed at the upper end of the upper extension tube 20. The diameter of the upper end of the conical ring 22 is larger than the diameter of its lower end. A flange 23 is formed at the upper end of the conical ring 22. The upper outer wall of the upper extension tube 20 is formed and connected to a feed tube 21.

[0021] The filling component 3 includes an upper ring 30 placed on the protruding edge 23. The inner circumference of the upper ring 30 is formed with a conical hopper 31. The outer circumference of the conical hopper 31 abuts against the inner wall of the conical ring 22. The diameter of the upper end of the conical hopper 31 is larger than the diameter of its lower end. The lower end of the conical hopper 31 is formed with a central connecting tube 32. The lower end of the central connecting tube 32 is formed with a flared part 33. The flared part 33 has a conical structure. The diameter of the upper end of the flared part 33 is smaller than the diameter of its lower end. The lower end of the flared part 33 is formed with a lower extension ring 34. The outer wall of the lower extension ring 34 is formed with an annular groove 35. The lower wall of the upper ring 30 is formed with multiple lower insertion rods 36. The protruding edge 23 is provided with insertion holes, and the insertion rods are inserted into the insertion holes.

[0022] The inner circumference of the upper end of the inner liner ring 5 is formed with an upper extension ring 50, which is inserted into the ring groove 35.

[0023] During casting, the inner liner ring 5 is first formed inside the outer shell 2 using a corresponding forming mold. The outer diameter of the mold matches the inner diameter of the inner liner ring 5. The upper end of the mold has a forming flange, the diameter of which matches the inner diameter of the upper extension ring 50. The lower end of the mold has a lower forming flange, and the lower ring 29 is placed on the lower forming flange. Then, coated sand is poured between the mold and the outer shell 2, and the inner liner ring 5 is formed by compaction.

[0024] Then, the filling component 3 is fitted inside the outer shell 2, and the upper extension ring 50 is inserted into the ring groove 35. Subsequently, sand and gravel are filled into the cavity formed by the outer shell 2 and the filling component 3 through the feed pipe 21, and the sand and gravel are compacted by shaking.

[0025] Next, the lower pad ring 1 is placed at the inlet of the casting mold to connect the inlet and the conical hole 10. Then, the ceramic filter 4 is placed on the lower pad ring 1, and then the lower ring 29 of the outer shell 2 is placed on the lower pad ring 1.

[0026] During casting, the molten metal will enter the cavity formed by the flared part 33, the ceramic filter 4 and the inner liner ring 5 through the conical hopper 31 and the connecting pipe 32. Then the molten metal will be injected into the pouring inlet through the ceramic filter 4 and the conical hole 10.

[0027] The above description is merely a preferred embodiment of this utility model and is not intended to limit the scope of this utility model. Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations of this utility model fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A pouring cup, characterized in that, Includes a lower pad ring (1), an outer shell (2) is placed on the lower pad ring (1), an inlet (3) is placed at the upper inside of the outer shell (2), an inner liner ring (5) is provided at the lower inside of the outer shell (2), a ceramic filter (4) is provided inside the inner liner ring (5), and the ceramic filter (4) is placed on the lower pad ring (1).

2. The pouring cup according to claim 1, characterized in that, A tapered hole (10) is provided on the lower pad ring (1). The diameter of the upper end of the tapered hole (10) is larger than the diameter of its lower end. A limiting protrusion (11) is formed on the lower pad ring (1).

3. The pouring cup according to claim 1, characterized in that, The lower pad ring (1) is made of alumina, the filling part (3) is made of alumina, the outer shell (2) is made of cast iron, and the inner lining ring (5) is formed by pressing coated sand inside the outer shell (2).

4. The pouring cup according to claim 1, characterized in that, The ceramic filter (4) is a porous foam structure made of alumina.

5. The pouring cup according to claim 2, characterized in that, The outer shell (2) includes a lower ring (29), which has multiple through holes. A limiting protrusion (11) passes through the through holes. An upper extension tube (20) is formed extending upward from the inner circumference of the lower ring (29). A conical ring (22) is formed at the upper end of the upper extension tube (20). The diameter of the upper end of the conical ring (22) is larger than the diameter of its lower end. A convex edge (23) is formed at the upper end of the conical ring (22).

6. The pouring cup according to claim 1, characterized in that, The upper outer wall of the extension tube (20) is formed and connected to the feed tube (21).

7. The pouring cup according to claim 5, characterized in that, The filling component (3) includes an upper ring (30) placed on the protruding edge (23). The inner circumference of the upper ring (30) is formed with a conical hopper (31). The outer circumference of the conical hopper (31) abuts against the inner wall of the conical ring (22). The diameter of the upper end of the conical hopper (31) is larger than the diameter of its lower end. The lower end of the conical hopper (31) is formed with a central connecting tube (32). The lower end of the central connecting tube (32) is formed with a flared part (33). The flared part (33) has a conical structure. The diameter of the upper end of the flared part (33) is smaller than the diameter of its lower end. The lower end of the flared part (33) is formed with a lower extension ring (34). The outer wall of the lower extension ring (34) is formed with an annular groove (35).

8. The pouring cup according to claim 7, characterized in that, The lower wall of the upper ring (30) is formed with multiple lower insert rods (36), and the protruding edge (23) is provided with an insertion hole, into which the insert rods are inserted.

9. The pouring cup according to claim 7, characterized in that, The inner circumference of the upper end of the inner lining ring (5) is formed with an upper extension ring (50), which is inserted into the ring groove (35).

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