Expendable mold casting drying device

Abstract

The utility model provides a kind of lost foam casting drying device, it is related to lost foam casting technical field, including: shell, heating plate is symmetrically arranged in shell interior, exhaust pipe is embedded in shell top;Hollow support disc is provided in shell interior, multiple gas outlets are opened in the top of hollow support disc, rotating tube that penetrates the bottom of shell is provided in the bottom of hollow support disc, rotating tube is communicated with hollow support disc;Driving assembly for driving rotating tube rotation is provided in the bottom of shell, air supply component for providing hot air to rotating tube is provided in the bottom of shell.The utility model structure is reasonable, water vapor can timely separate from lost foam surface, and drying efficiency is high.

Description

Technical Field

[0001] This utility model relates to the field of lost foam casting technology, specifically to a lost foam casting drying device. Background Technology

[0002] Lost foam casting is a novel casting method that involves bonding and assembling paraffin or foam models into a mold. After a series of treatments, the mold is embedded in dry quartz sand and vibrated to create the shape. Then, under negative pressure, the metal is poured in, causing the model to vaporize. The liquid metal occupies the position of the model, and after solidification and cooling, a casting is formed.

[0003] A lost foam casting drying device is a crucial piece of equipment specifically designed to remove moisture from lost foam patterns, ensuring the quality of the castings. In existing technologies, lost foam casting drying devices typically place heating elements around the pattern during operation. However, water vapor evaporating from the surface of the lost foam cannot detach in time, resulting in a saturated moisture layer on the pattern surface. This hinders subsequent moisture evaporation, directly causing low drying efficiency. Improvements to the lost foam casting drying device are needed to address these problems. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a lost foam casting drying device to solve the problems mentioned in the background technology. This utility model has a reasonable structure, and water vapor can be removed from the surface of the lost foam in time, resulting in high drying efficiency.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a lost foam casting drying device, comprising: The housing has heating plates symmetrically arranged inside, and an exhaust pipe is embedded in the top of the housing; The housing is equipped with a hollow support plate inside. The top of the hollow support plate has multiple air outlets. The bottom of the hollow support plate is equipped with a rotating tube that penetrates the bottom of the housing and is connected to the hollow support plate. The bottom of the housing is equipped with a drive assembly for driving the rotating tube to rotate and an air supply assembly for providing hot air to the rotating tube.

[0006] Furthermore, the drive assembly includes a first U-shaped plate disposed at the bottom of the housing, a drive motor disposed at the bottom of the first U-shaped plate, a drive gear disposed on the output shaft of the drive motor located inside the first U-shaped plate, and a driven gear meshing with the drive gear disposed on the side wall of the rotating tube.

[0007] Furthermore, the air supply assembly includes a second U-shaped plate disposed at the bottom of the housing, the driven gear being located inside the second U-shaped plate, a hot air blower being disposed at the bottom of the second U-shaped plate, a connecting pipe being disposed at the top of the hot air blower and inserted into the rotating pipe, and a first sealed bearing being disposed at the connection between the connecting pipe and the rotating pipe.

[0008] Furthermore, an L-shaped pipe is provided at the bottom of the hot air blower.

[0009] Furthermore, a second sealed bearing is provided at the connection between the rotating tube and the housing, and a third sealed bearing is provided at the connection between the rotating tube and the second U-shaped plate.

[0010] Furthermore, a connecting bearing is embedded in the lower side of the inner wall of the housing, and a connecting ring is provided at the bottom of the hollow support disk to be inserted into the inner wall of the connecting bearing.

[0011] Furthermore, an air collecting hood is provided on the upper side of the inner wall of the housing, and an air collecting groove is provided inside the air collecting hood. An exhaust fan is provided on the top of the housing, and the exhaust fan is connected to the air collecting groove through the exhaust pipe.

[0012] Furthermore, the housing sidewall has a placement opening, and the housing sidewall is provided with a sealing door for sealing the placement opening via a rotating hinge.

[0013] The beneficial effects achieved by the present invention using the above structure are as follows: This invention uses an air supply assembly to deliver hot air into the rotating tube. The hot air enters the hollow support plate and finally flows out from multiple air outlets. The air outlets blow air vertically, which heats and dries the lost foam. At the same time, it blows the water vapor evaporated from the surface of the lost foam upward and out through the exhaust pipe, accelerating the speed at which the water vapor leaves the surface of the lost foam. This ensures that the water vapor leaves the surface of the lost foam in a timely manner and improves the drying efficiency. Attached Figure Description

[0014] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings: Figure 1 This is a perspective view of a lost foam casting drying apparatus according to an embodiment of the present invention; Figure 2 This is a front sectional view of a lost foam casting drying apparatus according to an embodiment of the present invention; Figure 3 According to an embodiment of the present utility model Figure 2 Enlarged view of A in the middle; Figure 4 This is a cross-sectional perspective view of a lost foam casting drying apparatus according to an embodiment of the present invention; Figure 5 According to an embodiment of the present utility model Figure 4 Enlarged view of B in the middle; Figure 6 This is a cross-sectional perspective view of a lost foam casting drying apparatus according to an embodiment of the present invention. Figure 7 This is a perspective view of the connection between the rotating tube and the hollow support plate in a lost foam casting drying device according to an embodiment of the present invention. Figure 8 This is a perspective view of the connection between the exhaust fan and the air collecting hood in a lost foam casting drying device according to an embodiment of the present invention. In the diagram: 1. Housing; 1001. Placement port; 2. Sealed door; 3. Exhaust fan; 31. Exhaust pipe; 4. Drive assembly; 41. Drive gear; 42. First U-shaped plate; 43. Driven gear; 44. Drive motor; 5. Air supply assembly; 51. L-shaped pipe; 52. Hot air blower; 53. Connecting pipe; 54. First sealed bearing; 55. Second U-shaped plate; 6. Rotating pipe; 61. Second sealed bearing; 62. Third sealed bearing; 7. Connecting bearing; 8. Connecting ring; 9. Hollow support plate; 91. Air outlet; 10. Heating plate; 11. Air collection hood; 111. Air collection slot. Detailed Implementation

[0015] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0016] like Figure 1 As shown, this utility model provides a technical solution: a lost foam casting drying device, comprising: The housing 1 has heating plates 10 symmetrically arranged inside the housing 1 and an exhaust pipe 31 embedded in the top of the housing 1. The housing 1 contains a hollow support plate 9. Multiple air vents 91 are located at the top of the hollow support plate 9. A rotating pipe 6, penetrating the bottom of the housing 1, is located at the bottom of the hollow support plate 9 and is connected to the hollow support plate 9. A drive assembly 4 for driving the rotating pipe 6 to rotate is located at the bottom of the housing 1, as is an air supply assembly 5 for providing hot air to the rotating pipe 6. This design uses the drive assembly 4 to drive the rotating pipe 6 to rotate, which in turn drives the lost foam casting on the hollow support plate 9 to rotate.

[0017] The lost foam is uniformly heated and dried by the rotating heating plate 10. Hot air is supplied into the rotating pipe 6 through the air supply component 5, enters the hollow support plate 9, and finally flows out from multiple air outlets 91. The air outlets 91 blow air vertically, which can heat and dry the lost foam. At the same time, it blows the water vapor evaporated on the surface of the lost foam upward and flows out from the exhaust pipe 31, which can accelerate the speed at which water vapor leaves the surface of the lost foam and ensure that water vapor leaves the surface of the lost foam in a timely manner, thereby improving the drying efficiency. The lost foam is relatively heavy, so the hot air will not cause the lost foam to move upward. At the same time, the hollow rotating plate rotates slowly to ensure uniform heating and prevent the lost foam from centrifugal displacement.

[0018] Reference Figure 4 , Figure 5 and Figure 7 The drive assembly 4 includes a first U-shaped plate 42 disposed at the bottom of the housing 1. A drive motor 44 is disposed at the bottom of the first U-shaped plate 42. A drive gear 41 located inside the first U-shaped plate 42 is disposed on the output shaft of the drive motor 44. A driven gear 43 meshing with the drive gear 41 is disposed on the side wall of the rotating tube 6. This design enables the drive motor 44 in the drive assembly 4 to drive the drive gear 41 to rotate, the drive gear 41 to drive the driven gear 43 to rotate, the driven gear 43 to drive the rotating tube 6 to rotate, and the rotating tube 6 to drive the hollow support disk 9 to rotate, which facilitates the rotation of the lost foam casting.

[0019] Reference Figure 2 and Figure 3 The air supply assembly 5 includes a second U-shaped plate 55 located at the bottom of the housing 1. A driven gear 43 is located inside the second U-shaped plate 55. A hot air blower 52 is located at the bottom of the second U-shaped plate 55, and a connecting pipe 53 inserted into the rotating pipe 6 is located at the top of the hot air blower 52. A first sealing bearing 54 is provided at the connection between the connecting pipe 53 and the rotating pipe 6. This design provides hot air to the rotating pipe 6 through the operation of the hot air blower 52 in the air supply assembly 5; the sealing performance at the connection between the rotating pipe 6 and the connecting pipe 53 is improved through the connecting pipe 53 and the first sealing bearing 54.

[0020] Reference Figure 2 An L-shaped pipe 51 is installed at the bottom of the hot air blower 52, which improves the rationality of the design.

[0021] Reference Figure 2 , Figure 3 and Figure 5 A second sealed bearing 61 is provided at the connection between the rotating tube 6 and the housing 1, and a third sealed bearing 62 is provided at the connection between the rotating tube 6 and the second U-shaped plate 55. This design improves the stability of the rotation of the rotating tube 6 and enhances the sealing performance at the rotating points through the second sealed bearing 61 and the third sealed bearing 62.

[0022] Reference Figure 2 , Figure 4 and Figure 7 A connecting bearing 7 is embedded in the lower inner wall of the housing 1, and a connecting ring 8 is provided at the bottom of the hollow support disk 9, which is inserted into the inner wall of the connecting bearing 7. This design provides rotational support for the hollow support disk 9 through the connecting bearing 7 and the connecting ring 8. An annular groove is formed on the lower inner wall of the housing 1, and the connecting bearing 7 is embedded in the annular groove. The outer wall of the connecting bearing 7 is in close contact with the outer wall of the annular groove, and the inner wall of the connecting bearing 7 is in close contact with the outer wall of the connecting ring 8, thereby improving the stability at the rotation point.

[0023] Reference Figure 2 and Figure 8 An air collecting hood 11 is provided on the upper side of the inner wall of the housing 1. An air collecting slot 111 is opened inside the air collecting hood 11. An exhaust fan 3 is provided on the top of the housing 1. The exhaust fan 3 and the air collecting slot 111 are connected by an exhaust pipe 31. This design, through the air collecting hood 11 and the air collecting slot 111, facilitates the guidance of water vapor to the exhaust pipe 31, and discharges it through the exhaust fan 3, thereby accelerating the speed at which water vapor leaves the housing 1.

[0024] Reference Figure 1 and Figure 6 The shell 1 has a placement opening 1001 on its side wall, and a sealing door 2 for sealing the placement opening 1001 is provided on the side wall of the shell 1 via a rotating hinge. This design facilitates the placement and removal of lost foam through the placement opening 1001 and the sealing door 2.

[0025] Reference Figures 1-8 As an embodiment of this utility model: when it is necessary to dry the lost foam, the lost foam is placed on the top of the hollow support plate 9 by opening the sealing door 2, and then the sealing door 2 is closed to complete the placement of the lost foam.

[0026] The heating plate 10 heats the lost foam, and the drive motor 44 in the drive assembly 4 drives the drive gear 41 to rotate. The drive gear 41 drives the driven gear 43 to rotate, the driven gear 43 drives the rotating tube 6 to rotate, the rotating tube 6 drives the hollow support plate 9 to rotate, and the hollow support plate 9 drives the lost foam to rotate, thereby improving the uniformity of heating the lost foam by the heating plate 10.

[0027] The hot air blower 52 in the air supply assembly 5 provides hot air to the rotating pipe 6. The connection between the rotating pipe 6 and the connecting pipe 53 is improved by the connection between the connecting pipe 53 and the first sealing bearing 54, ensuring that the hot air is delivered into the hollow support plate 9 and flows out from multiple air outlets 91. The air outlets 91 blow air upwards vertically, which can heat and dry the lost foam. At the same time, it blows the water vapor evaporated on the surface of the lost foam upwards and flows out from the exhaust pipe 31, which accelerates the speed at which the water vapor leaves the surface of the lost foam. This ensures that the water vapor leaves the surface of the lost foam in a timely manner, improves the drying efficiency, and enhances the practicality of this utility model.

[0028] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0029] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A drying apparatus for lost foam casting, comprising: The housing (1) has heating plates (10) symmetrically arranged inside it, and an exhaust pipe (31) is embedded in the top of the housing (1). Its features are: The housing (1) is provided with a hollow support plate (9) inside. The top of the hollow support plate (9) is provided with a plurality of air outlets (91). The bottom of the hollow support plate (9) is provided with a rotating tube (6) that penetrates the bottom of the housing (1). The rotating tube (6) is connected to the hollow support plate (9). The bottom of the housing (1) is provided with a drive assembly (4) for driving the rotating tube (6) to rotate. The bottom of the housing (1) is provided with an air supply assembly (5) for providing hot air to the rotating tube (6).

2. The lost foam casting drying apparatus according to claim 1, characterized in that, The drive assembly (4) includes a first U-shaped plate (42) disposed at the bottom of the housing (1), a drive motor (44) disposed at the bottom of the first U-shaped plate (42), an active gear (41) disposed on the output shaft of the drive motor (44) and located inside the first U-shaped plate (42), and a driven gear (43) meshing with the active gear (41) disposed on the side wall of the rotating tube (6).

3. The lost foam casting drying apparatus according to claim 2, characterized in that, The air supply assembly (5) includes a second U-shaped plate (55) disposed at the bottom of the housing (1), the driven gear (43) is located inside the second U-shaped plate (55), a hot air blower (52) is disposed at the bottom of the second U-shaped plate (55), a connecting pipe (53) inserted into the rotating tube (6) is disposed at the top of the hot air blower (52), and a first sealed bearing (54) is disposed at the connection between the connecting pipe (53) and the rotating tube (6).

4. The lost foam casting drying apparatus according to claim 3, characterized in that, The bottom of the hot air blower (52) is provided with an L-shaped pipe (51).

5. The lost foam casting drying apparatus according to claim 3, characterized in that, A second sealed bearing (61) is provided at the connection between the rotating tube (6) and the housing (1), and a third sealed bearing (62) is provided at the connection between the rotating tube (6) and the second U-shaped plate (55).

6. The lost foam casting drying apparatus according to claim 1, characterized in that, A connecting bearing (7) is embedded in the lower side of the inner wall of the housing (1), and a connecting ring (8) is provided at the bottom of the hollow support plate (9) and inserted into the inner wall of the connecting bearing (7).

7. The lost foam casting drying apparatus according to claim 1, characterized in that, An air collecting hood (11) is provided on the upper side of the inner wall of the housing (1). An air collecting groove (111) is provided inside the air collecting hood (111). An exhaust fan (3) is provided on the top of the housing (1). The exhaust fan (3) and the air collecting groove (111) are connected through the exhaust pipe (31).

8. The lost foam casting drying apparatus according to claim 1, characterized in that, The housing (1) has a placement opening (1001) on its side wall, and the housing (1) has a sealing door (2) for sealing the placement opening (1001) by means of a rotating hinge on its side wall.

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