Sand temperature adjusting device for casting

Abstract

The utility model belongs to the technical field of casting, and particularly relates to a sand temperature adjusting device for casting, which comprises a bottom plate, two support frames are fixed at the top of the bottom plate, a mixing barrel is rotatably connected between the two support frames, and a mounting frame is further mounted on the outer side of the mixing barrel and positioned between the two support frames. Wherein a motor is installed at the end, away from the material mixing barrel, of one supporting frame, the output end of the motor penetrates through the supporting frame and is connected with the material mixing barrel, a temperature adjusting part is installed on the inner side of the installation frame, the temperature adjusting part is used for adjusting the temperature of the material mixing barrel, and the temperature adjusting part is a temperature adjusting loop pipe fitting; the temperature adjusting loop pipe fitting is arranged at the bottom of the inner side of the mounting frame in an arc-shaped surface manner and semi-surrounds the mixing barrel, and arc-shaped clamping strips are fixed at the upper and lower parts of the two ends of the mounting frame. According to the utility model, on the basis of uniformly adjusting the temperature in the whole rotating process of sand, the waste of materials for manufacturing the temperature adjusting piece is reduced, and the loss of the temperature is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of casting, and in particular relates to a sand temperature regulating device for casting. Background Art

[0002] In the foundry industry, the temperature control of coated sand is a key factor in ensuring the quality of castings. Coated sand is a type of molding sand or core sand that is covered with a layer of solid resin film before molding. It is widely used in complex castings with high dimensional accuracy requirements, such as automobiles, tractors, hydraulic parts, etc. With the development of the machinery industry, especially the automotive industry, the quality requirements for castings are constantly increasing, and the application of coated sand is becoming more and more extensive. In a highly automated casting production line, the cycle of molding sand is short and the sand temperature is high, which will have a significant impact on the performance of the molding sand, production order, and casting quality, forming the so-called hot sand problem. Therefore, effective control of sand temperature is crucial to ensure the quality of castings;

[0003] In the prior art, the coated sand production line usually uses a boiling cooling bed as a sand temperature regulator for cooling. However, this method cannot ensure that the temperature of all the sand after cooling meets the requirements. The cooling speed is slow and all the sand cannot be cooled evenly. This results in that when most of the sand has not been cooled to the predetermined temperature, the temperature of some of the sand is too low, thereby affecting the hardening speed and molding time of the sand.

[0004] To address this problem, the publication number CN217018458U discloses a sand temperature regulating device for casting, which adopts a double cooling water pipe strategy to achieve better temperature regulation effect, increase heat dissipation area, and reduce equipment volume. The sand falling gate of the device is set so that only the molding sand that meets the temperature requirements can be sent to the next process. At the same time, one machine has two uses, which can be used for cooling and heating to meet different process requirements.

[0005] However, when the mixing drum rotates, the sand can only rotate along a certain angle, and then it will fall due to gravity, which not only leads to material waste, but also causes temperature loss, thereby affecting the effective use of energy. Therefore, it is necessary to make improvements on the above patent. Utility Model Content

[0006] The utility model aims to provide a sand temperature regulating device for casting, which can reduce the waste of materials for making temperature regulating parts and reduce temperature loss on the basis of uniform temperature regulation during the whole rotation process of sand materials.

[0007] The technical solution adopted by the utility model is as follows:

[0008] A sand temperature regulating device for casting, comprising a bottom plate, two support frames are fixed on the top of the bottom plate, a mixing barrel is rotatably connected between the two support frames, and a mounting frame is also installed outside the mixing barrel and between the two support frames, a motor is installed at one end of one of the support frames away from the mixing barrel, and the output end of the motor passes through the support frame and is connected to the mixing barrel;

[0009] A temperature regulating component is installed on the inner side of the installation frame, and the temperature regulating component is used to regulate the temperature of the mixing barrel.

[0010] The temperature regulating component is a temperature regulating loop pipe, which is arranged at the bottom of the inner side of the installation frame in an arc-shaped surface and semi-encloses the mixing barrel.

[0011] Arc-shaped clamping strips are fixed at both ends of the installation frame, and two clamping blocks corresponding to the arc-shaped clamping strips are arranged on one side of the two support frames close to the installation frame.

[0012] The top and bottom of the mixing barrel are both provided with an opening and closing plate.

[0013] A spiral mixing body is arranged inside the mixing cylinder.

[0014] The arc-shaped clamping strip and the corresponding clamping block are in interference fit, and both the arc-shaped clamping strip and the clamping block are made of flexible material.

[0015] The technical effects achieved by the utility model are:

[0016] The utility model arranges a temperature regulating piece at the lower part of the mixing barrel, so that the temperature of the sand material can be more evenly regulated during the entire rotation process. This design not only reduces the waste of materials for making the temperature regulating piece, but also reduces the loss of temperature. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the utility model;

[0018] Figure 2 It is a schematic diagram of the structure between the installation frame, the temperature regulating circuit pipe fittings and the mixing barrel in the utility model;

[0019] Figure 3 It is a schematic diagram of the structure between the installation frame, the arc-shaped clamping strip and the clamping block in the utility model;

[0020] Figure 4 It is a cross-sectional view of the mixing barrel in the utility model.

[0021] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0022] 1. Bottom plate; 2. Support frame; 3. Mounting frame; 4. Mixing barrel; 5. Motor; 6. Temperature regulating circuit pipe fittings; 7. Arc-shaped clamping strip; 8. Block; 9. Opening and closing plate; 10. Spiral mixing body. DETAILED DESCRIPTION

[0023] In order to make the purpose and advantages of the utility model more clear, the utility model is specifically described in combination with the following embodiments. It should be understood that the following text is only used to describe one or several specific implementations of the utility model, and does not strictly limit the protection scope of the specific request of the utility model.

[0024] like Figure 1-4 As shown, a sand temperature regulating device for casting comprises a bottom plate 1, which is used to support the following other devices. Two support frames 2 are fixed on the top of the bottom plate 1. The support frames 2 are also used to support the following other devices, which can be replaced by other parts, etc. A mixing barrel 4 is rotatably connected between the two support frames 2. A spiral mixing body 10 is arranged on the inner side of the mixing barrel 4. Through the arrangement of the spiral mixing body 10, when the mixing barrel 4 rotates, the spiral mixing body 10 can realize better turning of the sand inside, so as to realize more uniform overall temperature of the sand and faster visual temperature control. An opening and closing plate 9 is arranged on the top and bottom of the mixing barrel 4. When sand needs to be loaded into the mixing barrel 4, the opening and closing plate 9 on the upper part of the mixing barrel 4 can be opened to allow the sand to enter the mixing barrel 4. The opening and closing plate 9 on the upper part of the mixing barrel 4 is closed. After the temperature control of the sand is completed, the opening and closing plate 9 on the lower part of the mixing barrel 4 can be opened to discharge the sand inside the mixing barrel 4.

[0025] A mounting frame 3 is also installed outside the mixing barrel 4 and between the two support frames 2, a motor 5 is installed at one end of one of the support frames 2 away from the mixing barrel 4, and the output end of the motor 5 passes through the support frame 2 and is connected to the mixing barrel 4;

[0026] A temperature regulating element is installed on the inner side of the mounting frame 3, and the temperature regulating element is used to regulate the temperature of the mixing barrel 4;

[0027] When using the device, sand can be added to the interior of the mixing barrel 4, and the motor 5 can be started, so that the output end of the motor 5 drives the mixing barrel 4 to rotate, and the sand inside the mixing barrel 4 rotates with the mixing barrel 4, and the temperature is adjusted by the temperature regulating element, so that the temperature inside the mixing barrel 4 can be adjusted, and the temperature of the sand can be changed.

[0028] See attached Figure 2, the temperature regulating component is a temperature regulating loop pipe 6, which is arranged at the bottom of the inner side of the mounting frame 3 in an arc-shaped surface, and semi-encloses the mixing barrel 4. The temperature regulating loop pipe 6 is arranged at the bottom of the mixing barrel 4, so that the temperature regulating loop pipe 6 can control the temperature of the sand in the mixing barrel 4. When the mixing barrel 4 rotates, the sand inside it will not completely rotate with the mixing barrel 4, but will fall back to the inside of the mixing barrel 4 from the upward trend amplitude after the mixing barrel 4 rotates to a certain amplitude. Therefore, heating the bottom of the mixing barrel 4 can realize the temperature control of the mixing barrel 4 and the sand inside it, and the temperature regulating loop pipe 6 can be any device that can be heated and cooled, such as a water pipe, hot water or cold water is introduced into the water pipe to heat the mixing barrel 4, or a heating wire, the heating wire is started, so that the heating wire heats the mixing barrel 4, and the heating wire is turned off at a suitable temperature;

[0029] Furthermore, a temperature sensor may be installed inside the mixing barrel 4 to detect the temperature state inside the mixing barrel 4 in real time.

[0030] See attached Figure 3 , arc-shaped clamping strips 7 are fixed at both ends of the mounting frame 3, and two clamping blocks 8 corresponding to the arc-shaped clamping strips 7 are arranged on one side of the two support frames 2 close to the mounting frame 3. The arc-shaped clamping strips 7 and the corresponding clamping blocks 8 are interference fit, and the arc-shaped clamping strips 7 and the clamping blocks 8 are both made of flexible materials. Through this arrangement, the arc-shaped clamping strips 7 and the clamping blocks 8 can be clamped when they contact each other, and their flexible materials can prevent the arc-shaped clamping strips 7 and the clamping blocks 8 from being stuck when they contact each other. The specific materials of the arc-shaped clamping strips 7 and the clamping blocks 8 can be rubber and other materials;

[0031] Through this arrangement, after the temperature control of the sand inside the mixing barrel 4 is completed, the mounting frame 3 can be turned over so that the opening of the mounting frame 3 faces downward, and the arc-shaped clamping strip 7 and the clamping block 8 are squeezed against each other so that the arc-shaped clamping strip 7 and the clamping block 8 can be clamped. At this time, the opening and closing plate 9 at the bottom of the mixing barrel 4 can be opened to release the sand through the opening and closing plate 9 there.

[0032] The above is only a preferred embodiment of the present invention. It should be noted that, for ordinary technicians in the technical field, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be regarded as the protection scope of the present invention. The structures, devices and operating methods not specifically described and explained in the present invention shall be implemented according to the conventional means in the field unless otherwise specified and limited.

Claims

1. A sand temperature regulating device for casting, comprising a bottom plate (1), characterized in that: Two support frames (2) are fixed on the top of the bottom plate (1), a mixing barrel (4) is rotatably connected between the two support frames (2), and a mounting frame (3) is also installed outside the mixing barrel (4) and between the two support frames (2), a motor (5) is installed at one end of one of the support frames (2) away from the mixing barrel (4), and the output end of the motor (5) passes through the support frame (2) and is connected to the mixing barrel (4); A temperature regulating component is installed on the inner side of the installation frame (3), and the temperature regulating component is used to regulate the temperature of the mixing barrel (4).

2. A casting sand temperature regulating device according to claim 1, characterized in that: The temperature regulating component is a temperature regulating loop pipe (6), which is arranged in an arc-shaped surface at the bottom of the inner side of the installation frame (3) and semi-surrounds the mixing barrel (4).

3. The casting sand temperature regulating device according to claim 1, characterized in that: Arc-shaped clamping strips (7) are fixed at both ends of the installation frame (3), and two clamping blocks (8) corresponding to the arc-shaped clamping strips (7) are arranged on one side of the two support frames (2) close to the installation frame (3).

4. The casting sand temperature regulating device according to claim 1, characterized in that: The top and bottom of the mixing barrel (4) are both provided with an opening and closing plate (9).

5. The casting sand temperature regulating device according to claim 1, characterized in that: A spiral mixing body (10) is arranged inside the mixing cylinder (4).

6. The casting sand temperature regulating device according to claim 3, characterized in that: The arc-shaped clamping strip (7) and the corresponding clamping block (8) are in interference fit, and both the arc-shaped clamping strip (7) and the clamping block (8) are made of flexible material.

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