A drying chamber for uniformly circulating hot air foam model coating in lost foam casting of automobiles

Abstract

This utility model discloses a drying chamber for uniformly circulating hot air foam model coating in lost foam casting for automobiles, belonging to the technical field of lost foam casting equipment. The drying chamber includes a chamber body, with multiple hot air systems installed on the top of the chamber body. Each hot air system has an inlet pipe installed at its inlet port, and multiple return air pipes are fixedly connected to the inlet pipes. An outlet plate is fixedly installed inside the chamber body, and a cavity is formed between the bottom of the outlet plate and the inner bottom of the chamber body. An exhaust pipe is installed at the outlet port of each hot air system, and multiple outlet pipes are installed on the exhaust pipe. The hot air system, in conjunction with the outlet and return air pipes, allows hot air to circulate evenly onto the coating on the foam model, ensuring uniform drying and guaranteeing the stability of the coating drying process. This saves production costs and improves product quality.

Description

Technical Field

[0001] This utility model relates to the technical field of lost foam casting equipment, and more specifically, to a drying chamber for uniformly circulating hot air foam model coating for automobile lost foam casting. Background Technology

[0002] In lost foam casting, the degree of drying of the foam model coating has a significant impact on the quality of the casting. Therefore, it is essential to ensure that the degree of drying of the foam model coating is within a certain range and is uniform during the casting process.

[0003] Based on the above, the inventors have discovered that existing drying systems use random turbulent heating, which cannot guarantee uniform drying of the coating on the bottom and sides of the foam model. Furthermore, during use, the drying time or temperature must be increased to achieve the desired dryness, resulting in damp coating in the deep cavity of the foam model's bottom surface, failing to meet drying requirements. This necessitates extensive manual air blowing for drying, which not only causes quality issues such as sand adhesion and bulging in the castings but also incurs high labor intensity and time costs for workers, as well as significant electricity expenses, impacting production costs. Therefore, in view of this, the inventors have researched and improved the existing structure to provide a uniformly circulating hot air foam model coating drying chamber for automotive lost foam casting, aiming to achieve a more practical purpose. Utility Model Content

[0004] 1. Technical problems to be solved

[0005] To address the problems existing in the prior art, the purpose of this utility model is to provide a hot air uniform circulation foam model coating drying chamber for lost foam casting of automobiles. It can be used in conjunction with a hot air system and an air outlet and return pipe to make the hot air circulate evenly on the coating on the foam model, so as to make it dry evenly and ensure the stability of coating drying. This saves production costs and improves product quality.

[0006] 2. Technical Solution

[0007] To solve the above problems, the present invention adopts the following technical solution.

[0008] A drying chamber for uniformly circulating hot air foam model coating in lost foam casting of automobiles includes a chamber body. Multiple hot air systems are installed on the top of the chamber body. Air inlet pipes are installed at the air inlet ports of the hot air systems. Multiple return air pipes are fixedly connected to and connected to the air inlet pipes. An air outlet base plate is fixedly installed inside the chamber body. A cavity is formed between the bottom of the air outlet base plate and the inner bottom of the chamber body. An exhaust pipe is installed at the air outlet port of the hot air systems. Multiple air outlet pipes are installed on the exhaust pipes. One end of each air outlet pipe extends into the interior of the chamber body and communicates with the interior of the cavity.

[0009] Furthermore, the bottom of the return air duct is equipped with multiple return air inlets, and the bottom of the return air inlets is connected to the interior of the room.

[0010] Furthermore, the top of the air outlet base plate is provided with several fine holes.

[0011] Furthermore, multiple roller shutter doors are installed on the outside of the building.

[0012] Furthermore, several temperature sensors are installed on the inner ceiling wall of the room.

[0013] Furthermore, several lighting lamps are installed on the inner ceiling wall of the room.

[0014] Furthermore, a control cabinet is installed on the outer periphery of the room.

[0015] 3. Beneficial effects

[0016] Compared with existing technologies, the advantages of this utility model are:

[0017] (1) This solution constructs a hot air circulation loop through the synergistic action of the hot air system, inlet duct, return duct, exhaust duct, outlet duct, and cavity. The hot air generated by the hot air system enters the cavity through the exhaust duct and outlet duct, and then diffuses evenly upwards into the cavity through the fine holes on the outlet bottom plate to dry the foam model coating. At the same time, the air inside the cavity flows back to the hot air system through the return air inlet at the bottom of the return duct, the return duct, and the inlet duct, realizing the recycling of hot air, effectively improving the thermal energy utilization rate and reducing energy consumption.

[0018] (2) In this scheme, the design of the air outlet plate allows hot air to rise evenly from the bottom, which can dry the bottom and sides of the foam model at the same time. This avoids the problem of the coating in the deep cavity of the bottom surface being damp due to uneven distribution of hot air in the traditional drying method, and ensures the consistency of the coating drying degree in each part of the foam model, thereby improving the quality of the casting and reducing defects such as sand adhesion and bulging. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a top view of the structure of this utility model;

[0021] Figure 3 This is a side sectional view of the present invention.

[0022] Explanation of the labels in the diagram:

[0023] 1. Body;

[0024] 2. Hot air system;

[0025] 3. Air inlet duct;

[0026] 4. Return air duct;

[0027] 5. Air outlet base plate;

[0028] 6. Cavity;

[0029] 7. Exhaust duct;

[0030] 8. Air outlet duct;

[0031] 9. Return air vent;

[0032] 10. Roller shutter door;

[0033] 11. Temperature sensor;

[0034] 12. Lighting lamp;

[0035] 13. Control cabinet. Detailed Implementation

[0036] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0037] Example:

[0038] Please see Figures 1-3 A drying chamber for uniformly circulating hot air foam model coating in lost foam casting of automobiles includes a chamber body 1. Multiple hot air systems 2 are installed on the top of the chamber body 1. Air inlet pipes 3 are installed at the air inlet ports of the hot air systems 2. Multiple return air pipes 4 are fixed and connected to the air inlet pipes 3. An air outlet base plate 5 is fixedly installed inside the chamber body 1. A cavity 6 is provided between the bottom of the air outlet base plate 5 and the inner bottom of the chamber body 1. An exhaust pipe 7 is installed at the air outlet port of the hot air systems 2. Multiple air outlet pipes 8 are installed on the exhaust pipe 7. One end of the air outlet pipe 8 extends into the interior of the chamber body 1 and is connected to the interior of the cavity 6.

[0039] See Figure 3 The bottom of the return air duct 4 is equipped with multiple return air inlets 9, and the bottom of the return air inlets 9 is connected to the interior of the room 1.

[0040] See Figure 1 The top of the air outlet base plate 5 has several small holes.

[0041] See Figure 1 Multiple roller shutter doors 10 are installed on the outside of the building 1.

[0042] See Figure 2 Several temperature sensors 11 are installed on the inner top wall of the chamber 1. During use, the temperature inside the chamber 1 can be monitored in real time through the temperature sensors 11 installed on the inner top wall, which facilitates the adjustment of the hot air system 2 to ensure that the drying temperature is within a suitable range.

[0043] See Figure 2 Several lights 12 are installed on the inner top wall of chamber 1. When in use, the lights 12 provide good lighting conditions for the interior of chamber 1, making it convenient for staff to observe the drying status of the foam model.

[0044] See Figure 2 A control cabinet 13 is installed on the outer periphery of the chamber 1. During use, the hot air system 2 can be controlled through the settings of the control cabinet 13 to ensure that the drying temperature is within a suitable range.

[0045] In use: Through the coordinated action of the hot air system 2, inlet duct 3, return duct 4, exhaust duct 7, outlet duct 8, and cavity 6, a hot air circulation loop is constructed. The hot air generated by the hot air system 2 enters the cavity 6 through the exhaust duct 7 and outlet duct 8, and then diffuses evenly upwards into the interior of the chamber 1 through the fine holes on the outlet base plate 5, drying the foam model coating. At the same time, the air inside the chamber 1 flows back to the hot air system 2 through the return air inlet 9 at the bottom of the return duct 4, the return duct 4, and the inlet duct 3, realizing the recycling of hot air, effectively improving the thermal energy utilization rate and reducing energy consumption. The design of the exhaust plate 5 allows hot air to rise evenly from the bottom, simultaneously drying the bottom and sides of the foam model. This avoids the problem of damp coating in the deep cavity of the bottom surface caused by uneven heat distribution in traditional drying methods, ensuring the consistency of coating drying in all parts of the foam model. This improves the quality of the casting and reduces defects such as sand adhesion and bulging. The overall structure is reasonably designed and easy to use, reducing the labor intensity of workers and shortening the drying time, further saving production costs. In addition, the temperature sensor 11 installed on the inner top wall of the chamber 1 can monitor the internal temperature in real time, facilitating precise adjustment of the hot air system 2 through the control cabinet 13 to ensure that the drying temperature is always within a suitable range.

[0046] Finally, it should be noted that in the description of this utility model, the terms "vertical," "upper," "lower," "horizontal," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0047] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0048] The above description is merely a preferred embodiment of this utility model; however, the protection scope of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the technical scope disclosed in this utility model, based on the technical solution and its improved concept, should be included within the protection scope of this utility model.

Claims

1. A hot gas uniform circulation foam pattern coating drying house for automotive expendable pattern casting, comprising a house body (1), characterized in that: Multiple hot air systems (2) are installed on the top of the room (1). An air inlet pipe (3) is installed at the air inlet port of the hot air system (2). Multiple return air pipes (4) are fixed and connected to the air inlet pipe (3). An air outlet base plate (5) is fixedly installed inside the room (1). A cavity (6) is provided between the bottom of the air outlet base plate (5) and the inner bottom of the room (1). An exhaust pipe (7) is installed at the air outlet port of the hot air system (2). Multiple air outlet pipes (8) are installed on the exhaust pipe (7). One end of the air outlet pipe (8) extends into the interior of the room (1) and is connected to the interior of the cavity (6).

2. The hot gas uniform circulation foam pattern paint drying room for the automobile lost foam casting according to claim 1, characterized in that: The bottom of the return air duct (4) is equipped with multiple return air inlets (9), and the bottom of the return air inlets (9) is connected to the interior of the room (1).

3. The hot gas uniform circulation foam pattern paint drying room for the automobile lost foam casting according to claim 1, characterized in that: The top of the air outlet base plate (5) has several fine holes.

4. The hot gas uniform circulation foam pattern paint drying room for the automobile lost foam casting according to claim 1, characterized in that: Multiple roller shutter doors (10) are installed on the outside of the building (1).

5. A drying chamber for uniformly circulating hot air foam model coating for lost foam casting of automobiles according to claim 1, characterized in that: Several temperature sensors (11) are installed on the inner top wall of the room (1).

6. A drying chamber for uniformly circulating hot air foam model coating for lost foam casting of automobiles according to claim 1, characterized in that: The inner ceiling wall of the room (1) is equipped with several lighting lamps (12).

7. A drying chamber for uniformly circulating hot air foam model coating for lost foam casting of automobiles according to claim 1, characterized in that: A control cabinet (13) is installed on the outer periphery of the room (1).

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