Casting sand box with cooling structure

Abstract

The utility model relates to the related technical field of casting sand boxes, in particular to a casting sand box with a cooling structure, which comprises a box body which is an external structure of a device, an inner cavity is arranged in the box body, a fixed frame is fixedly connected to the inner wall of the inner cavity, an inner cylinder is fixedly connected to the inner side of the fixed frame, and a plurality of metal ridge sheets are fixedly connected to the surface of the inner cylinder. A plurality of small fans are fixedly installed on the inner wall of the inner cavity, and an air inlet valve is fixedly installed above the box body. After cooling gas is introduced into the inner cavity through the air inlet valve, the small fan is started to be matched with the ventilation plate to enable the cooling gas in the inner cavity to flow in the inner cavity, after a period of time, the temperature of the cooling gas around the inner cylinder is evenly distributed, and the influence of uneven temperature distribution of the cooling gas on the device is reduced; the contact area of the inner cylinder and cooling gas is increased by fixedly connecting the metal ridge pieces to the surface of the inner cylinder, and when the cooling gas flow rate is the same, the contact time of the cooling gas and the structure is prolonged, so that the heat exchange efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field related to casting sand boxes, in particular to a casting sand box with a cooling structure. Background Art

[0002] A casting sand box is a mold used to pour molten metal in the casting process and is used to make castings. A casting sand box with a cooling structure is now designed.

[0003] According to Chinese patent: CN214814616U, a sand box with a cooling mechanism for sand casting includes: a box body, a box cover, a through hole and a molding box, the top of the box body is fitted with a box cover, the surface of the box cover is provided with a through hole, the inside of the through hole is fitted with a molding box, a feed pipe, a feed valve, a rotating device, an adjusting device, a storage box, a circular hole and a clamping mechanism, the bottom lower surface of the box body is fixedly connected with a rotating device, the inside of the box body is symmetrically provided with a storage box, the surface of the storage box is fixedly connected with a feed pipe, the inside of the feed pipe is provided with a feed valve, the surface of the storage box is equidistantly provided with circular holes, the inside of the box body is provided with an adjusting device below the storage box, the adjusting device is fixedly connected to the rotating device, the upper surface of the box cover is symmetrically fixedly connected with a clamping mechanism, the clamping mechanism is fitted with the molding box, and the bottom lower surface of the box body is fixedly connected with a support plate. Based on the above-mentioned public patents and in combination with the prior art, it is found that:

[0004] 1. The above device cools the sand box with liquid carbon dioxide. Using a fan to blow the liquid carbon dioxide from the bottom of the sand box upward will cause the temperature of the liquid carbon dioxide at the bottom and top of the sand box to be uneven, which in turn causes the temperature in the sand box to be uneven all the time.

[0005] 2. Most of the sand boxes currently used for gas cooling need to maintain the circulation output of gas in the device all the time, because the rapid passage of gas leads to a reduction in the contact time between the cooling gas and the sand box, and the heat transfer efficiency is reduced. Utility Model Content

[0006] The utility model aims to provide a casting sand box with a cooling structure to solve the problems in the use of the existing casting sand box proposed in the above background technology.

[0007] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0008] A casting sand box with a cooling structure, comprising:

[0009] The box body is the external structure of the device and has an inner cavity;

[0010] A fixing frame is fixedly connected to the inner wall of the inner cavity, the inner side of the fixing frame is fixedly connected to the inner cylinder, and a plurality of metal ridges are fixedly connected to the surface of the inner cylinder;

[0011] A plurality of small fans are fixedly mounted on the inner wall of the inner cavity;

[0012] An air intake valve is fixedly installed above the box body.

[0013] Preferably, the box body is composed of two parts, and the two parts are movably mounted together by a hinge;

[0014] Universal wheels are movably mounted on the bottom of the box.

[0015] Preferably, an electronic valve is fixedly installed above the box body, which is a one-way valve that can be controlled by a program and can only allow the gas in the box to be transported out.

[0016] Preferably, a ventilation plate made of metal is fixedly installed in the center of the fixing frame, which has a certain strength and allows air to pass freely through the inside.

[0017] Preferably, a sensor is fixedly mounted on the inner wall of the inner cavity, and two types of sensors are installed inside the inner cavity, namely an air pressure sensor and a temperature sensor.

[0018] Preferably, a central processing unit is fixedly installed above the box, which is connected to the sensor data and can calculate and convert the data after receiving the data transmitted from the sensor end and then output it;

[0019] The display screen is fixedly mounted on the front side of the box body and can receive data output from the central processing unit and display it digitally.

[0020] Preferably, a mounting piece is fixedly connected to the box body, and a plurality of mounting holes are provided on the mounting piece;

[0021] Fixing screws, which are all arranged in mounting holes provided on the mounting member;

[0022] The fixing nut is threadedly mounted on the fixing screw to fix the mounting parts on both sides together.

[0023] The present invention provides a casting sand box with a cooling structure, which has the following beneficial effects:

[0024] 1. After the cooling gas is introduced into the inner cavity through the air inlet valve, start the small fan and cooperate with the ventilation plate to make the cooling gas in the inner cavity flow in the inner cavity. After a period of time, the cooling gas temperature around the inner cylinder is evenly distributed, reducing the impact of uneven cooling gas temperature distribution on the device.

[0025] 2. By fixing a number of metal ridges on the surface of the inner tube, the contact area between the inner tube and the cooling gas is increased. When the cooling gas flow rate is the same, the contact time between the cooling gas and the structure is increased, thereby improving the heat exchange efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0027] Figure 1 This is a schematic diagram of the overall structure of a casting sand box with a cooling structure of the utility model;

[0028] Figure 2 This is a schematic diagram of the internal structure of a casting sand box with a cooling structure of the utility model;

[0029] Figure 3 This is a schematic diagram of the cross-sectional structure of a casting sand box with a cooling structure of the utility model;

[0030] Figure 4 The utility model is a schematic diagram of the overall structure of a casting sand box liner with a cooling structure.

[0031] In the figure: 1. Box body; 2. Hinge; 3. Electronic valve; 4. Intake valve; 5. Central processing unit; 6. Display screen; 7. Mounting parts; 8. Fixed frame; 9. Universal wheel; 10. Fixing screws; 11. Fixing nuts; 12. Sensor; 13. Small fan; 14. Ventilation plate; 15. Inner tube; 16. Metal ridge; 17. Inner cavity. Implementation

[0032] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0033] Example: Figure 1-2 As shown, a casting sand box with a cooling structure comprises: a box body 1, which is the external structure of the device, the box body 1 is divided into two parts, and the two parts are movably installed together through a hinge 2 in the middle, and a plurality of universal wheels 9 are movably installed under the box body 1 to give the device the characteristic of being easy to move, an inner cavity 17 is opened inside the box body 1, and the inner cavity 17 is cylindrical as a whole, and an air intake valve 4 is fixedly installed above the box body 1, which can transport cooling gas into the inner cavity 17, and it is a one-way valve that can only allow gas to enter and prevent gas from escaping from the inner cavity 17, and an electronic valve 3 is fixedly installed above the box body 1, which is actually a one-way valve controlled by an electronic device, which can allow the gas in the inner cavity 17 to be discharged from the inside and prevent external gas from entering.

[0034] like Figure 3-4 As shown, it includes: a mounting member 7, which is fixedly connected at the junction of the two parts of the box body 1, the contact part of the mounting member 7 is airtightly treated by means of sealing rings and other measures, a plurality of mounting holes are opened on the mounting member 7, a fixing screw 10 is inserted into the mounting hole and a fixing nut 11 is threadedly installed at the end thereof, the two parts of the box body 1 can be fixedly installed together by the fixing screw 10, the fixing nut 11 and the mounting member 7, a small fan 13, which is composed of a plurality of blade motors, can assist the flow of cooling gas in the inner cavity 17, a sensor 12 is fixedly installed on the inner wall of the inner cavity 17, which is a collection assembly of a temperature sensor and an air pressure sensor, which can collect the temperature and air pressure in the inner cavity 17 and transmit the temperature and air pressure to the inner cavity 17. The data is transmitted to the central processing unit 5 fixedly installed on the top of the box body 1. The central processing unit 5 can calculate and convert the received data, and then transmit it to the display screen 6 fixedly installed on the front side of the box body 1 and display it. A fixed frame 8 is fixedly connected to the inner wall of the inner cavity 17, and a ventilation plate 14 is fixedly installed in the center of the fixed frame 8. The middle of the fixed frame 8 is fixedly connected to the inner cylinder 15, and a plurality of metal ridges 16 are fixedly connected to the surface of the inner cylinder 15. The inner cylinder 15 is a casting structure of the device. The metal ridges 16 on the outside can improve the heat conduction and the contact area with the cooling gas. The ventilation plate 14 and the small fan 13 can make the cooling gas flow slowly inside, so that the gas temperature in the inner cavity is evenly distributed.

[0035] Working principle: After the two parts of the box body 1 are installed together by fixing screws 10 and fixing nuts 11, cooling gas such as liquid carbon dioxide is injected into the inner cavity 17 through the air inlet valve 4, and the value of the air pressure on the display screen 6 is observed. When the gas injection reaches the specified value, the small fan 13 is started, and the cooling gas in the inner cavity 17 is made to flow in the inner cavity 17 in conjunction with the ventilation plate 14. After a period of time, the temperature of the cooling gas around the inner cylinder 15 is evenly distributed, reducing the impact of the uneven temperature distribution of the cooling gas on the device. At the same time, a number of metal ridges 16 are fixedly connected to the surface of the inner cylinder 15 to increase the contact area between the inner cylinder 15 and the cooling gas. When the flow rate of the cooling gas is the same, the contact time between the cooling gas and the structure is increased to improve the heat exchange efficiency. The temperature of the gas in the inner cavity 17 is checked through the display screen 6. When it rises to a certain temperature, the electronic valve 3 is opened, and new cooling gas is injected through the air inlet valve 4 at the same time, and the gas with a higher temperature is sent out of the inner cavity 17 through the electronic valve 3 to complete the ventilation.

[0036] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A casting sand box with a cooling structure, characterized in that: include: A box body (1), which is the external structure of the device and has an inner cavity (17) formed therein; A fixing frame (8) is fixedly connected to the inner wall of the inner cavity (17); the inner side of the fixing frame (8) is fixedly connected to the inner cylinder (15); and a plurality of metal ridges (16) are fixedly connected to the surface of the inner cylinder (15); A plurality of small fans (13) are fixedly mounted on the inner wall of the inner cavity (17); An air intake valve (4) is fixedly mounted above the box body (1).

2. The casting sand box with cooling structure according to claim 1, characterized in that: The box body (1) is composed of two parts, and the two parts are movably mounted together via a hinge (2); Universal wheels (9) are movably mounted on the bottom of the box body (1).

3. The casting sand box with cooling structure according to claim 1, characterized in that: An electronic valve (3) is fixedly installed above the box (1), which is a one-way valve that can be controlled by a program and can only allow the gas in the box (1) to be transported outward.

4. The casting sand box with cooling structure according to claim 1, characterized in that: A ventilation plate (14) made of metal is fixedly mounted in the center of the fixed frame (8), allowing air to freely pass through the interior thereof.

5. The casting sand box with cooling structure according to claim 1, characterized in that: A sensor (12) is fixedly mounted on the inner wall of the inner cavity (17), and two types of sensors are mounted inside the inner cavity, namely an air pressure sensor and a temperature sensor.

6. The casting sand box with a cooling structure according to claim 1, characterized in that: A central processing unit (5) is fixedly mounted above the box (1), and is connected to the sensor (12) for data transmission, and after receiving data transmitted from the sensor (12), it can calculate and convert the data and then output it; A display screen (6) is fixedly mounted on the front side of the housing (1) and can receive data output from the central processing unit (5) and display it digitally.

7. The casting sand box with a cooling structure according to claim 1, characterized in that: The box body (1) is fixedly connected with a mounting member (7), and a plurality of mounting holes are provided on the mounting member (7); Fixing screws (10), each of which is disposed in a mounting hole provided on the mounting member (7); A fixing nut (11) is threadably mounted on the fixing screw (10) so that the mounting members (7) on both sides are fixedly mounted together.

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