Quick-acting air drying chamber for investment casting shell

Abstract

The utility model relates to the technical field of air drying equipment, in particular to a quick-acting air drying chamber for an investment casting shell, which comprises a sealed chamber capable of preserving heat, a snakelike conveying line is arranged in the sealed chamber, and two ends of the snakelike conveying line are connected with an external mold shell production line. A plurality of air conditioners and dehumidifiers are arranged on the two side walls in the length direction of the secret chamber, at least two rows of fans are arranged in the middle in the length direction of the secret chamber, and a temperature and humidity monitoring device is arranged at one end of the secret chamber. According to the wax mold sand hanging device, drying and curing of a sand shell after wax mold sand hanging can be accelerated, so that the production efficiency is improved, the snake-shaped conveying line is connected with an external mold shell production line, automatic curing of the wax mold shell can be achieved, and then automation of the procedures of slurry dipping, sand hanging and curing of the mold shell is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of air drying equipment, in particular to a quick-acting air drying chamber for investment casting shells. Background Art

[0002] In the wax casting process, shell making is an important core process with high technical content, complex process and long time consumption. The quality of the prepared sand shell has a great impact on the quality of subsequent casting. The sand shell outside the wax mold generally has at least three layers. Each layer of sand shell needs to go through the processes of slurry dipping, sand hanging, and curing. Before each layer of sand shell is prepared, the previous layer of sand shell needs to be cured. If the sand shell is cured by natural drying, it will be very time-consuming and will greatly affect the production efficiency. Utility Model Content

[0003] The purpose of the utility model is to address the deficiencies of the prior art and provide a quick-acting air-drying chamber for investment casting shells, which transports the wax mold after sanding to the air-drying chamber. The air-drying chamber is provided with an air conditioner, a fan and a dehumidifier to increase the drying speed of the sand shell, thereby improving its curing efficiency.

[0004] The technical solution adopted by the utility model to solve its technical problems is: a quick-acting air-drying chamber for investment casting shells, including a heat-insulating chamber, a serpentine conveyor line is arranged in the chamber, both ends of the serpentine conveyor line are connected to the external shell production line, a plurality of air conditioners and dehumidifiers are arranged on the walls on both sides along the length direction of the chamber, at least two rows of fans are arranged in the middle along the length direction of the chamber, and a temperature and humidity monitoring device is arranged at one end of the chamber.

[0005] Preferably, the height of the fan is equal to the height of the suspended formwork.

[0006] Preferably, when the insulation temperature of the chamber is required to be lower than 30° C., the air conditioner is used for heating.

[0007] Preferably, when the insulation temperature of the chamber is required to be higher than 30°C, a burner is used for heating. When a burner is used for heating, a hot air duct is provided on the top of the chamber.

[0008] Preferably, the hot air pipes are arranged along the length direction of the chamber, and there are multiple hot air pipes. The hot air pipes are provided with a downward air outlet every three meters along the length direction.

[0009] Preferably, the diameter of the hot air pipe is greater than 400 mm, and the diameter of the air outlet is 160-200 mm.

[0010] The beneficial effects of the utility model are as follows: a quick-acting air drying room for investment casting shells includes a heat-insulating chamber, a serpentine conveyor line is arranged in the chamber, both ends of the serpentine conveyor line are connected to an external shell production line, a plurality of air conditioners and dehumidifiers are arranged on the walls on both sides along the length direction of the chamber, at least two rows of fans are arranged in the middle along the length direction of the chamber, and a temperature and humidity monitoring device is arranged at one end of the chamber. The utility model can accelerate the drying and curing of the sand shell after the wax mold is sanded, thereby improving production efficiency, and the serpentine conveyor line is connected to an external shell production line, which can realize the automatic curing of the wax mold shell, and then realize the automation of the process of slurry dipping, sanding and curing of the shell. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic plan view of the structure of a quick-acting air-drying chamber for investment casting shells of the utility model;

[0012] Figure 2 The utility model is a schematic elevation structure diagram of a quick-acting air-drying chamber for investment casting mold shells.

[0013] Description of reference numerals:

[0014] 1——Secret room, 2——Snake conveyor line, 3——Air conditioner, 4——Dehumidifier, 5——Fan, 6——Temperature and humidity monitoring equipment, 7——Burner, 8——Hot air duct, 9——Air outlet. DETAILED DESCRIPTION

[0015] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments, but the scope of implementation of the present invention is not limited thereto.

[0016] like Figure 1 , 2 As shown, the quick-acting air-drying chamber for investment casting mold shells of this embodiment includes a heat-insulating chamber 1, a serpentine conveyor line 2 is arranged in the chamber 1, both ends of the serpentine conveyor line 2 are connected to the external mold shell production line, a number of air conditioners 3 and dehumidifiers 4 are arranged on the walls on both sides along the length direction of the chamber, at least two rows of fans 5 are arranged in the middle along the length direction of the chamber, and a temperature and humidity monitoring device 6 is arranged at one end of the chamber.

[0017] This embodiment can greatly improve the curing efficiency of the sand shell in wax mold casting, thereby improving production efficiency. The serpentine conveyor line 2 is connected to the external shell making production line. The wax mold after hanging sand is transported to the secret room along the production line. After drying and curing, it is carried out with the production line for the next cycle of shell making. It has a high degree of automation and almost no manual operation is required.

[0018] When the temperature of the chamber 1 to be kept warm is below 30° C., the air conditioner 3 can be used for heating, the fan 5 can improve indoor air circulation, and the dehumidifier 4 can remove moisture from the indoor air, thereby accelerating the drying and curing speed of the sand shell.

[0019] When the temperature of the chamber 1 that needs to be kept warm is above 30°C, it is difficult to use the air conditioner 3 for heating. The present embodiment uses a burner 7 for heating. The burner 7 burns gas and delivers hot air to the chamber 1 through a hot air pipe 8. The hot air pipe 8 is provided with a downward air outlet 9 at intervals. The height difference between the air outlet 9 and the suspended mold shell is 1 to 1.3 meters, thereby saving energy and improving the mold shell curing efficiency.

[0020] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, and for the convenience of describing the technical solution, the front, rear, left, right, top, middle, and bottom directions adopted are based on the settings in the accompanying drawings, rather than limiting the protection scope of the utility model. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in this field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the essence and scope of the technical solution of the utility model.

Claims

1. A quick-acting air drying chamber for investment casting shells, characterized by: It includes a heat-insulating chamber, in which a serpentine conveyor line is arranged, both ends of which are connected to an external mold shell production line, a number of air conditioners and dehumidifiers are arranged on the walls on both sides along the length direction of the chamber, at least two rows of fans are arranged in the middle along the length direction of the chamber, and a temperature and humidity monitoring device is arranged at one end of the chamber.

2. The quick-acting air drying chamber for investment casting shell according to claim 1, characterized in that: The height of the fan is equal to the height of the suspended formwork.

3. The quick-acting air drying chamber for investment casting shell according to claim 1, characterized in that: When the insulation temperature of the chamber is required to be lower than 30° C., the air conditioner is used for heating.

4. The quick-acting air drying chamber for investment casting shell according to claim 1, characterized in that: When the insulation temperature of the chamber is required to be higher than 30° C., a burner is used for heating. When a burner is used for heating, a hot air duct is provided on the top of the chamber.

5. The quick-acting air drying chamber for investment casting shell according to claim 4, characterized in that: The hot air pipes are arranged along the length direction of the chamber, and there are multiple hot air pipes. The hot air pipes are provided with a downward air outlet every three meters along the length direction.

6. The quick-acting air drying chamber for investment casting shell according to claim 5, characterized in that: The diameter of the hot air pipe is greater than 400 mm, and the diameter of the air outlet is 160-200 mm.

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