Hot air cleaning device controlled by air cylinder and not prone to blockage

Abstract

The utility model provides a cylinder controlled hot air cleaning device not easy to block, which comprises a blender, a cylinder, a blowing flange and a three-way valve, a first interface of the three-way valve is connected with the blowing flange, a second interface of the three-way valve is connected with an air heater, a third interface of the three-way valve is connected with a vacuum pouring box, and the vacuum pouring box is connected with the cylinder. The air cylinder is fixedly connected to the blender through an air blowing flange, and the telescopic end of the air cylinder can move between the position where the air blowing flange and the blender are separated or the position where the air blowing flange and the blender are abdicated. By means of the structure, it can be guaranteed that no mixture is accumulated in the inner connecting pipe when hot air cleaning is not used, the situation that hot air cleaning cannot be conducted due to pipeline blockage is avoided, the service life of hot air cleaning is greatly prolonged, the maintenance cost is reduced, and the production efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of mixer cleaning technology, specifically to a hot air cleaning device controlled by a cylinder that is not prone to clogging. Background Technology

[0002] In vacuum casting processes, resin and curing agent are typically mixed and then injected into a mold. However, after casting, hot air cleaning is crucial for ensuring the cleanliness of the equipment and mold. For example, Chinese patent document CN219052336U discloses a hot air cleaning device for a static mixing equipment.

[0003] However, this traditional structure has significant drawbacks in practical applications: when hot air cleaning is not in use, material can easily remain inside the inner pipe. As this residue accumulates, it gradually clogs the pipe, preventing the hot air cleaning function from starting properly and severely impacting production efficiency and the equipment's continuous operation. To maintain normal production, operators must frequently disassemble and clean the inner pipe, which not only increases labor costs but also increases the risk of damage during frequent disassembly and assembly, ultimately affecting the smooth operation of the entire vacuum casting process and the equipment's lifespan. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to propose a hot air cleaning device controlled by a cylinder that is not prone to clogging, so as to solve the problems mentioned in the background section above.

[0005] This utility model is achieved through the following technical solution:

[0006] A cylinder-controlled hot air cleaning device that is not prone to clogging includes a mixer, a cylinder, an air blowing flange, and a three-way valve. The first port of the three-way valve is connected to the air blowing flange, the second port of the three-way valve is connected to an air heater, and the third port of the three-way valve is connected to a vacuum casting box. The cylinder is fixedly connected to the mixer via the air blowing flange, and the telescopic end of the cylinder can move between the position of separating or making way for the air blowing flange and the mixer.

[0007] Furthermore, the first port of the three-way valve is connected to the air blowing flange via a heat-resistant air pipe.

[0008] Furthermore, the mixer is a static mixer.

[0009] Furthermore, the three-way valve is a three-way ball valve.

[0010] Furthermore, the three-way ball valve is an electric three-way ball valve or a pneumatic three-way ball valve.

[0011] The beneficial effects of this utility model are as follows: A cylinder-controlled hot air cleaning device that is not prone to clogging includes a mixer, a cylinder, an air-blowing flange, and a three-way valve. The first port of the three-way valve is connected to the air-blowing flange, the second port of the three-way valve is connected to an air heater, and the third port of the three-way valve is connected to a vacuum casting box. The cylinder is fixedly connected to the mixer via the air-blowing flange, and the telescopic end of the cylinder can move between the positions of the air-blowing flange and the mixer, either separating or allowing space. This structure ensures that no mixed material accumulates in the inner pipe when hot air cleaning is not in use, avoiding pipe blockage that prevents hot air cleaning from proceeding, greatly extending the service life of the hot air cleaning system, reducing maintenance costs, and improving production efficiency. Attached Figure Description

[0012] Figure 1 This is a front view of the present invention.

[0013] Figure 2 This is a perspective view of the present invention.

[0014] Figure 3 This is a partial sectional view of the air-blowing flange part of this utility model.

[0015] The above figures include the following reference numerals:

[0016] 1. Mixer; 2. Cylinder; 21. Telescopic end; 3. Air blowing flange; 4. Three-way valve; 5. Air heater; 6. High-temperature resistant air pipe. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. It should be noted that the description of these embodiments is intended to aid in understanding this utility model, but does not constitute a limitation thereof. Furthermore, the technical features involved in the various embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.

[0018] Reference Figures 1 to 3 As shown, a cylinder-controlled hot air cleaning device that is not prone to clogging includes a mixer 1, a cylinder 2, an air blowing flange 3, and a three-way valve 4. The first port of the three-way valve 4 is connected to the air blowing flange 3, the second port of the three-way valve 4 is connected to an air heater 5, and the third port of the three-way valve 4 is connected to a vacuum casting box (not shown in the figure). The cylinder 2 is fixedly connected to the mixer 1 through the air blowing flange 3, and the telescopic end 21 of the cylinder 2 can move between the positions of the air blowing flange 3 and the mixer 1, either separating or making way for them.

[0019] In use, compressed air is heated by the air heater 5. The three-way valve 4 is switched to be connected to the air blowing flange 3 and the air heater 5. Then, the cylinder 2 is opened to allow the heated compressed air to enter the mixer 1 and clean the mixer 1 until no material appears at the pouring port of the mixer 1, indicating that the cleaning is complete.

[0020] After cleaning, refer to Figure 3 As shown, by controlling the extension end 21 of the cylinder 2 to block the air from entering the channel of the mixer 1, the air inlet valve of the air heater 5 is closed, and then the three-way ball valve is switched to the state where the air blowing flange 3 and the vacuum casting box are connected. At this time, if the air blowing flange 3 leaks, the air in the air blowing flange and the three-way valve 4 will be drawn away together when the casting box is evacuated, so as to prevent air from entering the mixer 1 and causing the material to solidify.

[0021] The above structure ensures that no mixed material accumulates inside the inner pipe when hot air cleaning is not in use, avoiding pipe blockage that prevents hot air cleaning from taking place, greatly extending the service life of hot air cleaning, reducing maintenance costs, and improving production efficiency.

[0022] Several sealing rings (not shown in the figure) can be provided at the telescopic end 21 of the cylinder 2. The sealing rings abut against the inner wall of the air blowing flange 3. When the telescopic end 21 of the cylinder 2 is in the position of separating the air blowing flange 3 from the mixer 1, the sealing effect is guaranteed. The sealing abutment achieved by the sealing rings is the prior art and will not be described in detail here.

[0023] The first port of the three-way valve 4 is connected to the air-blowing flange 3 via a high-temperature resistant air pipe 6. This connection between the high-temperature resistant air pipe 6, the air-blowing flange 3, and the three-way valve 4 provides significant flexibility in spatial arrangement. In industrial settings, equipment and piping are often arranged in complex and compact layouts. This connection method can easily adapt to various irregular spatial arrangements, allowing for adjustments to the direction and position to avoid obstacles or be rationally combined with other equipment, enabling the entire system to achieve optimal layout within a limited space.

[0024] The mixer 1 is a static mixer. Static mixers can handle the mixing of various material combinations such as liquids with liquids, liquids with gases, and liquids with solids. They are widely used in many industries such as chemical, petroleum, pharmaceutical, food, and environmental protection to meet the mixing needs of different production scenarios.

[0025] The three-way valve 4 is a three-way ball valve. The three-way ball valve has three channels, allowing for convenient switching and distribution of fluid. By rotating the ball, fluid can be introduced into one channel and then flow out from another, or simultaneously flow out from both channels, meeting different process requirements. The three-way ball valve is characterized by its simple operation and effective sealing.

[0026] The three-way ball valve is either an electric three-way ball valve or a pneumatic three-way ball valve, which can be integrated with an automated control system (such as PLC, DCS, etc.) to achieve remote control and automated operation, eliminating the need for manual operation of the valve on-site, and greatly improving production efficiency and automation level.

[0027] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0028] In the description of this utility model, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first" and "second" may explicitly or implicitly include one or more of that feature.

[0029] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A cylinder-controlled hot air cleaning device that is not prone to clogging, characterized in that: The device includes a mixer (1), a cylinder (2), an air blowing flange (3), and a three-way valve (4). The first port of the three-way valve (4) is connected to the air blowing flange (3), the second port of the three-way valve (4) is connected to an air heater (5), and the third port of the three-way valve (4) is connected to a vacuum casting box. The cylinder (2) is fixedly connected to the mixer (1) through the air blowing flange (3). The telescopic end (21) of the cylinder (2) can move between the positions of the air blowing flange (3) and the mixer (1) to separate or make way for it.

2. The cylinder-controlled hot air cleaning device that is not prone to clogging according to claim 1, characterized in that: The first port of the three-way valve (4) is connected to the air blowing flange (3) via a heat-resistant air pipe (6).

3. The cylinder-controlled hot air cleaning device that is not prone to clogging according to claim 1, characterized in that: The mixer (1) is a static mixer.

4. The cylinder-controlled hot air cleaning device that is not prone to clogging according to claim 1, characterized in that: The three-way valve (4) is a three-way ball valve.

5. A cylinder-controlled hot air cleaning device that is not prone to clogging, as described in claim 4, characterized in that: The three-way ball valve is either an electric three-way ball valve or a pneumatic three-way ball valve.

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