Container corner fitting sand mold

Abstract

The utility model discloses a container corner piece sand mould, including lower mould and upper mould, the lower parting plane of lower mould is formed with the lower core and the sprue pocket upwards convexly, and the sprue pocket is located one side of lower core, the upper parting plane of upper mould is formed with the upper core, the upper sprue and the upper cross -gate, and the top surface of upper core forms the upper riser upwards convexly, and the upper riser is equipped with the heating riser sleeve, the upper cross -gate extends along the length direction of upper core, and one end of upper cross -gate is connected with upper sprue, and the other end is connected with upper core. Through the heating riser sleeve of upper riser, the heating riser sleeve will continue to burn and release heat when the metal liquid mould filling is completed, so as to heat the metal liquid in the feeding riser, make the metal liquid in the feeding riser keep liquid state for a long time, reach the purpose of sufficient feeding, thereby improve the feeding efficiency, prevent the casting from appearing the shrinkage, the shrinkage hole and so on.

Description

Technical Field

[0001] This utility model relates to the field of sand mold technology, specifically to a sand mold for container corner fittings. Background Technology

[0002] Sand molds for container corner fittings are used to form sand molds for container corner fittings, which are then used to cast the corner fittings. Existing sand molds include a lower mold and a corresponding upper mold. The lower mold forms the lower shell shape of the sand mold and includes a lower core and a sprue recess located on one side of the lower core. The upper mold forms the upper shell shape of the sand mold and includes an upper core corresponding to the lower core, an upper sprue corresponding to the sprue recess, and an upper runner. The two ends of the upper runner are connected to the upper core and the upper sprue, respectively. However, castings (corner fittings) cast from sand molds formed using the above-mentioned sand molds exhibit shrinkage porosity and shrinkage holes, resulting in low casting quality. Utility Model Content

[0003] To address the shortcomings of existing technologies, the purpose of this utility model is to provide a container corner fitting sand mold that improves feeding efficiency by installing a heating riser sleeve on the upper riser.

[0004] To achieve the above objectives, the embodiments of this utility model adopt the following technical solutions: A container corner fitting sand mold, comprising a lower mold and an upper mold corresponding to the lower mold; The lower parting surface of the lower mold protrudes upward to form a lower core and a sprue recess, the sprue recess being located on one side of the lower core; The upper parting surface of the upper mold extends upward to form an upper core, an upper sprue, and an upper runner. The upper parting surface, the upper core, and the upper sprue correspond to the lower parting surface, the lower core, and the sprue recess, respectively. The top surface of the upper core extends upward to form an upper riser, and a heating riser sleeve is fitted onto the upper riser. The upper runner extends along the length direction of the upper core, and one end of the upper runner connects to the upper sprue, while the other end connects to the upper core.

[0005] Furthermore, the upper riser gradually narrows from its lower end to its upper end, and the heating riser sleeve covers the outside of the upper riser and is adapted to the shape of the upper riser.

[0006] Furthermore, there are multiple upper risers, which are distributed along the length of the upper core. Each upper riser is fitted with a heating riser sleeve, which is an aluminothermic riser sleeve.

[0007] Furthermore, the top surface of the upper core has a first side and a second side in the length direction of the upper core. The first side is provided with an upper riser at each end. The second side is located away from the upper horizontal runner relative to the first side and is provided with another upper riser. The upper riser of the second side is located between the two upper risers of the first side.

[0008] Furthermore, the upper mold has an upwardly protruding venting plate on its upper parting surface, the venting plate being located on the side of the upper core away from the upper horizontal runner and connected to the upper core.

[0009] Furthermore, there are two exhaust vents, which are located at both ends of the upper core and extend toward the upper core.

[0010] Furthermore, a chill is provided at each end of the top surface of the lower core, and the chill extends along the length direction of the lower core.

[0011] Furthermore, the top surface of the lower core has two opposing third sides along the length direction of the lower core, and each of the third sides is provided with a chill at both ends.

[0012] Furthermore, the lower mold and the upper mold are integrally formed and arranged side by side. The sprue recess is located between the lower core and the upper core and is closer to the lower core relative to the upper core. The upper sprue is located between the sprue recess and the upper core and is closer to the upper core relative to the lower core. The upper horizontal sprue and the upper sprue are both located on the same side of the upper core and are distributed along the length direction of the upper core. The upper horizontal sprue extends along the length direction of the upper core.

[0013] This invention relates to a sand mold for container corner fittings. By incorporating a heating riser sleeve over the upper riser, this sleeve continuously burns and releases heat as the molten metal fills the mold, thus heating the molten metal within the feeding riser. This prolongs the time the molten metal remains liquid within the feeding riser, achieving sufficient feeding and improving feeding efficiency. This prevents shrinkage porosity and other defects in the casting. This sand mold for container corner fittings is characterized by high feeding efficiency, simplicity, and low cost. Attached Figure Description

[0014] Figure 1 This is a partial exploded perspective view of the sand mold for container corner fittings according to an embodiment of this utility model; Figure 2 for Figure 1 A sectional view. Detailed Implementation

[0015] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments: like Figures 1 to 2 As shown, this utility model embodiment provides a container corner fitting sand mold for forming a sand mold for building-specific container corner fittings. The sand mold is used to cast and form the corner fittings of building-specific containers. The container corner fitting sand mold includes a lower mold 1 and an upper mold 2 corresponding to the lower mold 1.

[0016] The lower mold 1 is used to form the lower shell shape of the sand mold. The lower parting surface 11 of the lower mold 1 protrudes upward to form a lower core 12 and a sprue recess 13. The sprue recess 13 is located on one side of the lower core 12. Specifically, the lower parting surface 11 is formed on the top surface of the lower mold 1, and the lower core 12 and the sprue recess 13 are integrally formed with the lower mold 1. In order to improve the shrinkage compensation effect, a chill 3 is provided at both ends of the top surface of the lower core 12, and the chill 3 extends along the length direction of the lower core 12. In order to further improve the shrinkage compensation effect, specifically, the top surface of the lower core 12 has two opposing third sides 121 in the length direction of the lower core 12, and a chill 3 is provided at both ends of each third side 121.

[0017] The upper mold 2 is used to form the upper shell of the sand mold. The upper parting surface 21 of the upper mold 2 protrudes upward to form an upper core 22, an upper sprue 23 and an upper horizontal sprue 24. Specifically, the upper parting surface 21 is formed on the top surface of the upper mold 2, and the upper core 22, the upper sprue 23 and the upper horizontal sprue 24 are integrally formed with the upper mold 2. The upper parting surface 21, upper core 22, and upper sprue 23 correspond to the lower parting surface 11, lower core 12, and sprue recess 13, respectively. The top surface of the upper core 22 protrudes upward to form an upper riser 25, which is used as a feeding riser for forming the sand mold. The feeding riser is used to store molten steel (liquid metal) used for casting. The upper riser 25 is fitted with a heating riser sleeve 26. When casting, the heating riser sleeve 26 is embedded in the feeding riser. The upper horizontal sprue 24 extends along the length of the upper core 22, and one end of the upper horizontal sprue 24 is connected to the upper sprue 23, and the other end is connected to the upper core 22. By installing a heating riser sleeve 26 on the upper riser 25, the heating riser sleeve 26 will continue to burn and release heat when the molten metal is filled into the mold, so as to heat the molten metal in the feeding riser, thereby prolonging the time when the molten metal in the feeding riser remains in a liquid state. Under the same feeding liquid volume, the amount of molten steel used in the feeding riser is significantly reduced, so as to achieve the purpose of sufficient feeding, thereby improving the feeding efficiency, preventing the occurrence of shrinkage porosity and shrinkage holes in the casting, and the structure is simple and low cost.

[0018] To further improve the feeding effect, specifically, the upper riser 25 gradually narrows from its lower end to its upper end to form a conical structure, and there are multiple upper risers 25, which are distributed along the length direction of the upper core 22. In this embodiment, the top surface of the upper core 22 has a first side 221 and a second side 222 in the length direction of the upper core 22. The two ends of the first side 221 are respectively provided with an upper riser 25. The second side 222 is far away from the upper horizontal runner 24 relative to the first side 221 and is provided with another upper riser 25. The upper riser 25 of the second side 222 is located between the two upper risers 25 of the first side 221, and a heating riser sleeve 26 is fitted on one of the upper risers 25. The heating riser sleeve 26 covers the outside of the upper riser 25 and is adapted to the shape of the upper riser 25. The heating riser sleeve 26 is an aluminothermic riser sleeve. Of course, in other embodiments, the heating riser sleeve 26 can also be made of other materials that can generate heat, and the material can be selected according to the actual situation.

[0019] The upper mold 2 also has an upwardly protruding venting plate 27 on its parting surface 21. The venting plate 27 is located on the side of the upper core 22 away from the upper horizontal runner 24 and is connected to the upper core 22. Specifically, the venting plate 27 is integrally formed with the upper mold 2. In this embodiment, there are two venting plates 27, which are located at both ends of the upper core 22 and extend towards the upper core 22 to connect with it. During casting, the upper shell mold and the lower shell mold are closed. After the mold is closed, the venting plate 27 can effectively discharge the gas generated during the casting process from the parting surface to reduce the porosity defects of the casting and further improve the quality of the casting.

[0020] To improve production efficiency, in this embodiment, the lower mold 1 and the upper mold 2 are integrally formed and arranged side by side, and are separated by a partition strip (unlabeled); the sprue recess 13 is located between the lower core 12 and the upper core 22 and is closer to the lower core 12 relative to the upper core 22; the upper sprue 23 is located between the sprue recess 13 and the upper core 22 and is closer to the upper core 22 relative to the lower core 12; the upper horizontal sprue 24 and the upper sprue 23 are both located on the same side of the upper core 22 and are distributed along the length direction of the upper core 22, and the upper horizontal sprue 24 extends along the length direction of the upper core 22.

[0021] This invention relates to a sand mold for container corner fittings. By incorporating a heating riser sleeve over the upper riser, this sleeve continuously burns and releases heat as the molten metal fills the mold, thus heating the molten metal within the feeding riser. This prolongs the time the molten metal remains liquid within the feeding riser, achieving sufficient feeding and improving feeding efficiency. This prevents shrinkage porosity and other defects in the casting. This sand mold for container corner fittings is characterized by high feeding efficiency, simplicity, and low cost.

[0022] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or make equivalent substitutions for some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A sand mold for container corner fittings, characterized in that, Includes a lower mold and an upper mold corresponding to the lower mold; The lower parting surface of the lower mold protrudes upward to form a lower core and a sprue recess, the sprue recess being located on one side of the lower core; The upper parting surface of the upper mold extends upward to form an upper core, an upper sprue, and an upper runner. The upper parting surface, the upper core, and the upper sprue correspond to the lower parting surface, the lower core, and the sprue recess, respectively. The top surface of the upper core extends upward to form an upper riser, and a heating riser sleeve is fitted onto the upper riser. The upper runner extends along the length direction of the upper core, and one end of the upper runner connects to the upper sprue, while the other end connects to the upper core.

2. The container corner fitting sand mold as described in claim 1, characterized in that, The upper riser gradually narrows from its lower end to its upper end, and the heating riser sleeve covers the outside of the upper riser and is adapted to the shape of the upper riser.

3. The container corner fitting sand mold as described in claim 1, characterized in that, There are multiple upper risers, which are distributed along the length of the upper core. Each upper riser is fitted with a heating riser sleeve, which is an aluminothermic riser sleeve.

4. The container corner fitting sand mold as described in claim 1, characterized in that, The top surface of the upper core has a first side and a second side along the length direction of the upper core. The first side has an upper riser at each end. The second side is away from the upper horizontal runner relative to the first side and has another upper riser thereon. The upper riser on the second side is located between the two upper risers on the first side.

5. The container corner fitting sand mold as described in claim 1, characterized in that, The upper mold has an upwardly protruding vent plate on its upper parting surface. The vent plate is located on the side of the upper core away from the upper horizontal runner and is connected to the upper core.

6. The container corner fitting sand mold as described in claim 5, characterized in that, There are two exhaust vents, which are located at both ends of the upper core and extend toward the upper core.

7. The container corner fitting sand mold as described in claim 1, characterized in that, A chill is provided at each end of the top surface of the lower core, and the chill extends along the length of the lower core.

8. The container corner fitting sand mold as described in claim 7, characterized in that, The top surface of the lower core has two opposing third sides along the length of the lower core, and each of the third sides is provided with a chill at both ends.

9. The container corner fitting sand mold as described in claim 1, characterized in that, The lower mold and the upper mold are integrally formed and arranged side by side. The sprue recess is located between the lower core and the upper core and is closer to the lower core relative to the upper core. The upper sprue is located between the sprue recess and the upper core and is closer to the upper core relative to the lower core. The upper horizontal sprue and the upper sprue are both located on the same side of the upper core and are distributed along the length direction of the upper core. The upper horizontal sprue extends along the length direction of the upper core.

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