Shell mold cooling device for casting

Abstract

The utility model belongs to the technical field of casting production, and particularly relates to a casting shell mold cooling device which comprises a sand disc assembly, a main body support, an air supply assembly and an air outlet assembly, a gravel layer is laid in the sand disc assembly, a casting shell mold is placed on the gravel layer, the main body support and the sand disc assembly are both movably arranged, the air supply assembly is arranged on the main body support, and the air outlet assembly is arranged on the main body support. One end of the air outlet assembly is connected with the air supply assembly, the other end of the air outlet assembly is connected with the sand tray assembly, and an air outlet of the air outlet assembly faces the casting shell mold. Through the arrangement of the air supply assembly and the air outlet assembly, cooling air flow can be provided for cooling the part, difficult to cool, of a casting shell mold, and the quality of a casting is improved; the sand tray assembly can support and stabilize the casting shell mold in a complex shape and prevent the casting shell mold from inclining and deforming. The cooling air flow is conveniently and quickly provided for the casting shell mold, the casting quality is improved, and the defective rate of internal hollowness, surface bubbles and surface spongy surfaces of castings is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of casting production, and specifically relates to a shell mold cooling device for castings. Background Art

[0002] Casting shell molds usually have complex shapes, including fine details and internal cavities. Due to these complex features, it is difficult to place the casting shell mold stably during the solidification process. Stable placement means ensuring that the casting shell mold maintains the correct position and shape during the solidification process, avoiding deformation or tilting. However, due to the small base area and high center of gravity of the casting shell mold, the stability is poor. This leads to the problem of unstable placement, which is prone to tilting, collapse, etc.

[0003] Another issue is the cooling of the shell mold. Due to the relatively slow solidification of the shell mold, the internal temperature of the shell mold is high and the cooling rate is slow. This can lead to uneven internal temperature gradients, causing stress concentration and shrinkage defects. At the same time, the heat dissipation performance of the shell mold is poor, making it difficult to quickly reduce the temperature of the casting.

[0004] These problems can easily lead to internal cavities and surface bubbles in the shell mold of the casting. Internal cavities refer to the holes or pores inside the shell mold of the casting, which seriously affect the strength and integrity of the structure. Surface bubbles refer to bubbles generated on the surface of the shell mold of the casting, which affect its appearance quality and corrosion resistance. Utility Model Content

[0005] The utility model aims to overcome the deficiencies of the prior art, provide a shell mold cooling device for castings, increase the supporting structure, improve the quality of castings, and reduce the defective rate of castings with hollow interiors, surface bubbles, and spongy surfaces.

[0006] To achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a shell mold cooling device for castings, comprising a sand tray assembly, a main body bracket, an air supply assembly and an air outlet assembly, a gravel layer is laid in the sand tray assembly, the casting shell mold is placed on the gravel layer, the main body bracket and the sand tray assembly can be movably arranged, the air supply assembly is arranged on the main body bracket, one end of the air outlet assembly is connected to the air supply assembly, and the other end is connected to the sand tray assembly, and the air outlet of the air outlet assembly is arranged toward the casting shell mold.

[0007] Preferably, the air supply assembly includes a fan and a drive motor, the fan and the drive motor are connected, and the fan and the drive motor are both arranged on the main body bracket.

[0008] Preferably, the air outlet assembly includes an air duct joint and multiple air ducts and elbow pipes. One end of the air duct joint is provided with multiple air duct interfaces, and the other end is connected to the air supply assembly. One end of the air duct is connected to the elbow pipe, and the other end is connected to the air duct interface. The air outlet of the elbow pipe is arranged toward the casting shell mold.

[0009] Preferably, the duct joint is further provided with a plurality of duct control switches, the duct control switches control the switching of the duct interface, and the plurality of duct control switches correspond one-to-one to the plurality of duct interfaces.

[0010] Preferably, an air duct storage rack is also provided on the main frame, and the air ducts not in use are placed on the air duct storage rack.

[0011] Preferably, the sand tray assembly comprises a sand tray base, a gravel layer and a support assembly, the gravel layer is laid in the sand tray base, and the support assembly is arranged on one side of the sand tray base.

[0012] Preferably, a ventilation hole is opened on the side of the sand tray base, and the air outlet component is movably placed in the ventilation hole.

[0013] Preferably, the support assembly includes a supporting cross bar, a plurality of supporting columns, and a V-shaped supporting frame. The plurality of supporting columns are arranged on one side of the sand tray base, the V-shaped supporting frame is fixedly arranged on the supporting columns, the supporting cross bar is placed laterally on the V-shaped supporting frame, the bottom of the casting shell mold is placed on the gravel layer, and the side is in contact with the supporting cross bar.

[0014] Preferably, a moving device is also provided under the sand tray base.

[0015] Compared with the prior art, the above technical solution has the following beneficial effects:

[0016] The utility model can provide cooling airflow to cool down the hard-to-cool parts of the casting shell mold through the arrangement of the air supply component and the air outlet component, thereby improving the quality of the casting; the sand tray component can support and stabilize the casting shell mold of complex shape, and prevent the casting shell mold from tilting and deforming. The utility model can conveniently and quickly provide cooling airflow for the casting shell mold, improve the quality of the casting, and reduce the defective rate of the casting with hollow inside, bubbles on the surface, and spongy surface. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic structural diagram of a shell mold cooling device for castings of the utility model.

[0018] Figure 2 for Figure 1 Enlarged view of point A in the middle.

[0019] Figure 3 It is a structural schematic diagram of the utility model from another angle.

[0020] Figure 4 It is a structural schematic diagram of the sand tray assembly.

[0021] Figure 5 for Figure 4 Enlarged view of point B in the middle.

[0022] Among them: 1. Main frame; 101. Air duct storage rack; 2. Fan; 3. Air duct joint; 301. Air duct interface; 4. Air duct; 5. Elbow pipe; 6. Drive motor; 7. Sand tray assembly; 701. Sand tray base; 702. Gravel layer; 703. Support cross bar; 704. Support column; 705. Universal wheel; 706. Ventilation hole; 707. V-shaped support frame; 8. Air duct control switch. DETAILED DESCRIPTION

[0023] Figures 1 to 5 It is the best embodiment of the utility model, and the following Figures 1 to 5 The utility model is further described.

[0024] like Figures 1 to 3 As shown, a shell mold cooling device for castings of the utility model comprises a main support 1, an air supply assembly and an air outlet assembly. The air supply assembly comprises a fan 2 and a drive motor 6. The fan 2 and the drive motor 6 are both arranged on the main support 1. The drive motor 6 drives the fan 2 to operate and provides cooling airflow for the entire device. The air outlet assembly comprises an air duct joint 3 and multiple air ducts 4 and an elbow pipe 5. One end of the air duct joint 3 is provided with multiple air duct interfaces 301, and the other end is connected to the fan 2. One end of the air duct 4 is connected to the elbow pipe 5, and the other end is connected to the air duct interface 301. The air outlet of the elbow pipe 5 is arranged toward the shell mold of the casting, and the cooling airflow flows out from the air outlet to cool the shell mold of the casting. In this embodiment, the air duct joint 3 is also provided with multiple air duct control switches 8 for controlling the switch state of the air duct interface 301. The multiple air duct control switches 8 correspond to the multiple air duct interfaces 301 one by one.

[0025] Furthermore, the main frame 1 is movably arranged, and a duct storage rack 101 is also provided on the main frame 1. The duct 4 is made of flexible material, which is convenient for storage and placement. The duct 4 when not in use is placed on the duct storage rack 101, which is convenient for moving the main frame 1 when in use.

[0026] like Figures 4 and 5 As shown, the casting shell mold is placed on the sand tray assembly 7. The casting shell mold has a complex shape and an unstable bottom. The sand tray assembly 7 is used to support and stabilize the casting shell mold to prevent tilting and deformation during the cooling process. The sand tray assembly 7 includes a sand tray base 701, a gravel layer 702 and a support assembly. The gravel layer 702 is laid in the sand tray base 701. The gravel layer 702 has the function of isolating moisture. The gravel layer 702 itself has pores, and there are gaps between the gravel layers 702, which can make the casting shell mold better ventilated and cooled. In this embodiment, a ventilation hole 706 is opened on the side of the sand tray base 701, and the elbow pipe 5 of the air outlet assembly can be placed in the ventilation hole 706. The setting of the ventilation hole 706 not only improves the ventilation performance of the gravel layer 702, but also further accelerates the cooling speed of the casting shell mold.

[0027] The support assembly is arranged on one side of the sand tray base 701, and the support assembly includes a support cross bar 703, a plurality of support columns 704, and a V-shaped support frame 707. The plurality of support columns 704 are arranged on one side of the sand tray base 701, and the V-shaped support frame 707 is fixedly arranged on the support columns 704. The support cross bar 703 is horizontally placed on the V-shaped support frame 707. The bottom of the casting shell mold is placed on the gravel layer 702 and in contact with the support cross bar 703 to ensure stable placement. In this embodiment, a universal wheel 705 is also provided under the sand tray base 701 to facilitate the adjustment of the position of the sand tray.

[0028] When the utility model is used, the gravel layer 702 is first laid in the sand tray base 701, and then the sand tray base 701 is moved to the required position, and the already cast casting shell mold is neatly placed on the sand tray base 701. The main frame 1 is moved to the vicinity of the sand tray base 701, the required air duct 4 is removed from the air duct storage rack 101, and then a part of the elbow pipe 5 is placed in the ventilation hole 706, and then the remaining elbow pipe 5 is placed on the sand tray base 701, ensuring that the air outlet of the elbow pipe 5 faces the area where the casting shell mold needs to be cooled. Finally, the power is turned on, the fan 2 is turned on, and the air duct control switch 8 is turned on to start supplying cooling airflow.

[0029] The utility model can provide cooling airflow to cool down the shell mold of the casting and improve the quality of the casting by setting the fan 2 and the air duct 4; the movement of the main support 1 and the setting of the air duct storage rack 101 are convenient for operation and use; the sand tray assembly 7 can support and stabilize the shell mold of the casting with complex shapes to prevent tilting and deformation; the moisture-proof effect of the gravel layer 702 and the ventilation gaps between the gravel layers 702 are conducive to the ventilation and cooling of the shell mold of the casting; the setting of the ventilation holes 706 not only improves the ventilation performance of the gravel layer 702, but also further accelerates the cooling speed of the shell mold of the casting. The utility model can conveniently and quickly provide cooling airflow for the shell mold of the casting, improve the quality of the casting, and reduce the defective rate of the hollow inside the casting, the bubbles on the surface, and the spongy surface.

[0030] The above is only the preferred embodiment of the utility model, and does not limit the utility model in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the utility model without departing from the technical solution of the utility model still belongs to the protection scope of the technical solution of the utility model.

Claims

1. A shell mold cooling device for castings, characterized in that: The invention comprises a sand tray assembly (7), a main body support (1), an air supply assembly and an air outlet assembly, wherein a gravel layer (702) is laid in the sand tray assembly (7), a casting shell mold is placed on the gravel layer (702), the main body support (1) and the sand tray assembly (7) are both movably arranged, the air supply assembly is arranged on the main body support (1), one end of the air outlet assembly is connected to the air supply assembly, and the other end is connected to the sand tray assembly (7), and the air outlet of the air outlet assembly is arranged toward the casting shell mold.

2. A shell mold cooling device for castings according to claim 1, characterized in that: The air supply assembly comprises a fan (2) and a drive motor (6); the fan (2) and the drive motor (6) are connected; the fan (2) and the drive motor (6) are both arranged on the main body support (1).

3. The shell mold cooling device for castings according to claim 1, characterized in that: The air outlet assembly comprises an air duct joint (3), a plurality of air ducts (4), and an elbow pipe (5); one end of the air duct joint (3) is provided with a plurality of air duct interfaces (301), and the other end is connected to the air supply assembly; one end of the air duct (4) is connected to the elbow pipe (5), and the other end is connected to the air duct interface (301); the air outlet of the elbow pipe (5) is arranged toward the casting shell mold.

4. A shell mold cooling device for castings according to claim 3, characterized in that: The air duct joint (3) is also provided with a plurality of air duct control switches (8), the air duct control switches (8) controlling the opening and closing of the air duct interface (301), and the plurality of air duct control switches (8) correspond one to one to the plurality of air duct interfaces (301).

5. The shell mold cooling device for castings according to claim 3, characterized in that: An air duct storage rack (101) is also provided on the main frame (1), and an unused air duct (4) is placed on the air duct storage rack (101).

6. The shell mold cooling device for castings according to claim 1, characterized in that: The sand tray assembly (7) comprises a sand tray base (701), a gravel layer (702) and a support assembly, wherein the gravel layer (702) is laid inside the sand tray base (701), and the support assembly is arranged on one side of the sand tray base (701).

7. A shell mold cooling device for castings according to claim 6, characterized in that: A ventilation hole (706) is provided on the side of the sand tray base (701), and an air outlet component is movably placed in the ventilation hole (706).

8. The shell mold cooling device for castings according to claim 6, characterized in that: The support assembly comprises a support crossbar (703), a plurality of support columns (704), and a V-shaped support frame (707); the plurality of support columns (704) are arranged on one side of a sand tray base (701); the V-shaped support frame (707) is fixedly arranged on the support columns (704); the support crossbar (703) is horizontally placed on the V-shaped support frame (707); the bottom of the casting shell mold is placed on the gravel layer (702), and the side is in contact with the support crossbar (703).

9. The shell mold cooling device for castings according to claim 6, characterized in that: A moving device is also provided under the sand tray base (701).

Images