Sand mixing device for casting molding sand

Abstract

The utility model discloses a sand mulling device for foundry molding sand, which relates to the field of foundry molding sand and comprises a base, a sand mulling box is welded at the upper end of the base, a raising hopper is mounted at the upper end of the sand mulling box, positioning rods are fixedly connected to the inner walls of the sand mulling box, motors are fixedly connected to the outer walls of the positioning rods, and the motors are fixedly connected to the outer walls of the positioning rods. One end of the motor is fixedly connected with a fixing rod, and the outer wall of the fixing rod is fixedly connected with a stirring frame. The sand mixing box is arranged to clamp and fix the raising hopper, when the device is used, the raising hopper is arranged to facilitate discharging of the device, raise dust is restrained, dust discharged from the raising hopper is reduced, the practicability of the device is improved, the stirring frame is arranged to connect the wall scraping plate, and when the device is used, the stirring frame is arranged to stir the wall scraping plate. And a stirring frame and a wall scraping plate are arranged, so that adhesive raw materials on the wall of the device are conveniently removed, the adhesive raw materials are conveniently mixed, and the usability of the device is improved.

Description

Technical Field

[0001] This utility model relates to the field of casting sand, specifically a sand mixing device for casting sand. Background Technology

[0002] Casting is an ancient and important metal forming process. It involves pouring molten metal into a mold of a specific shape, allowing it to cool and solidify to obtain a casting of the desired shape. Molding sand is a crucial material used to create the mold cavity during the casting process. It can withstand the scouring and pressure of the molten metal and ensures that the casting achieves a precise shape and good surface quality. During the processing of casting molding sand, it needs to be mixed, thus requiring a sand mixing device for casting molding sand.

[0003] Existing patent document CN209550511U discloses a high-efficiency sand mixing device for casting molding sand, including a sand mixing box. A motor is installed at the center of the box cover at the upper end of the sand mixing box. A first rotating shaft at the lower end of the motor is inserted into the sand mixing box. The upper end of a sand guide cylinder outside the first rotating shaft is connected to the lower end of a sand guide hopper. A sand dispersing cover is also installed at the lower end of the first rotating shaft. An annular sand dispersing plate is installed on the inner wall of the sand mixing box outside the sand dispersing cover. Compared with the prior art, the beneficial effect of this utility model is that the molding sand falls onto the upper surface of the sand dispersing cover through the sand guide hopper and sand guide cylinder, and the rotating sand dispersing cover... The shroud allows the molding sand to slide off and fly out in an arc, landing on the annular sand-spreading plate. Under the action of the molding sand's own inertial force, the clumps of molding sand can be broken after impacting the annular sand-spreading plate, while other molding sand particles will fall into various positions at the bottom of the mixing box after impact, thus improving the mixing degree of molding sand. However, the CN209550511U technology is not convenient for removing the raw materials adhering to the device wall during operation, and it is not convenient for feeding materials into the device to suppress dust. Therefore, there is an urgent need for a sand mixing device for foundry molding sand. Utility Model Content

[0004] Based on this, the purpose of this utility model is to provide a sand mixing device for casting molding sand, so as to solve the problems that existing sand mixing devices for casting molding sand are not convenient for removing the raw materials adhering to the device wall and for discharging materials to suppress dust during use.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a sand mixing device for casting molding sand, comprising a base, a sand mixing box welded to the upper end of the base, and a lifting hopper installed at the upper end of the sand mixing box.

[0006] The inner wall of the sand mixing box is fixedly connected with a positioning rod, the outer wall of the positioning rod is fixedly connected with a motor, one end of the motor is fixedly connected with a fixing rod, the outer wall of the fixing rod is fixedly connected with a mixing frame, both ends of the mixing frame are welded with scraper plates, the outer wall of the mixing frame is installed with a clamping sleeve, the inner wall of the clamping sleeve is fixedly connected with a limit rod, and the outer wall of the limit rod is fixedly connected with a mixing plate.

[0007] Preferably, the sand mixing box is engaged with the lifting hopper, and the outer diameter of the sand mixing box is smaller than the outer diameter of the lifting hopper.

[0008] Preferably, the positioning rod is threadedly connected to the motor, and the positioning rod is symmetrically arranged about the central axis of the motor.

[0009] Preferably, the outer wall of the scraper is in close contact with the inner wall of the mixing box, and the scraper is symmetrically arranged about the central axis of the mixing rack.

[0010] Preferably, the stirring rack is engaged with the ferrule, and the ferrule is evenly spaced on the outer wall of the stirring rack.

[0011] Preferably, the limiting rod is threadedly connected to the mixing plate, and the inner wall of the mixing plate is designed with openings.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. This utility model uses a sand mixing box to lock and fix the lifting hopper. When using the device, the lifting hopper facilitates the feeding of materials to suppress dust and reduces the amount of dust coming out of the lifting hopper, thus increasing the practicality of the device.

[0014] 2. This utility model connects the mixing rack to the scraper plate. When using the device, the mixing rack and scraper plate facilitate the removal of materials adhering to the device wall and the mixing of these materials, thus increasing the usability of the device. Attached Figure Description

[0015] Figure 1 This is a perspective view of the present utility model;

[0016] Figure 2 This is a schematic diagram of the structure of this utility model from a vertical sectional view;

[0017] Figure 3 This is a schematic diagram of the structure of the mixing rack and scraper plate assembly of this utility model;

[0018] Figure 4 This is a schematic diagram of the structure of the combination of the sleeve, the limiting rod and the mixing plate of this utility model.

[0019] In the diagram: 1. Base; 2. Mixing box; 3. Lifting hopper; 4. Positioning rod; 5. Motor; 6. Fixing rod; 7. Mixing rack; 8. Scraper; 9. Sleeve; 10. Limiting rod; 11. Mixing plate. Detailed Implementation

[0020] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0021] The embodiments of this utility model will be described below based on its overall structure.

[0022] Please see Figure 1-4 A sand mixing device for casting molding sand includes a base 1, a sand mixing box 2 welded to the upper end of the base 1, and a lifting hopper 3 installed on the upper end of the sand mixing box 2. The sand mixing box 2 and the lifting hopper 3 are engaged and connected, and the outer diameter of the sand mixing box 2 is smaller than the outer diameter of the lifting hopper 3. By setting the sand mixing box 2, the lifting hopper 3 is engaged and fixed. When using the device, the setting of the lifting hopper 3 facilitates the feeding of materials to the device to suppress dust and reduce the amount of dust coming out of the lifting hopper 3, thereby increasing the practicality of the device.

[0023] Please see Figure 1-4 A sand mixing device for casting molding sand includes a mixing box 2 with positioning rods 4 fixedly connected to the inner wall of each mixing box 2. A motor 5 is fixedly connected to the outer wall of each positioning rod 4, and the positioning rods 4 are threadedly connected to the motor 5. The positioning rods 4 are symmetrically arranged about the central axis of the motor 5. A fixing rod 6 is fixedly connected to one end of the motor 5. A mixing frame 7 is fixedly connected to the outer wall of the fixing rod 6. Scraper plates 8 are welded to both ends of the mixing frame 7. The outer walls of the scraper plates 8 are tightly fitted to the inner wall of the mixing box 2, and the scraper plates 8 are symmetrically arranged about the central axis of the mixing frame 7. A retaining sleeve is installed on the outer wall of the mixing frame 7. 9. The mixing frame 7 and the clamping sleeve 9 are engaged and connected, and the clamping sleeve 9 is evenly spaced on the outer wall of the mixing frame 7. The inner wall of the clamping sleeve 9 is fixedly connected to the limiting rod 10. The outer wall of the limiting rod 10 is fixedly connected to the mixing plate 11. The limiting rod 10 and the mixing plate 11 are threaded together, and the inner wall of the mixing plate 11 is designed with an opening. The mixing frame 7 is used to connect the wall scraper 8. When using the device, the setting of the mixing frame 7 and the wall scraper 8 facilitates the removal of the raw materials adhering to the device wall and facilitates the mixing of the raw materials adhering to the device wall, thereby increasing the usability of the device.

[0024] Working principle: When in use, take out the device and place it in the designated position. Then, engage and fix the motor 5 to the mixing frame 7, then thread the fixing rod 6 to the mixing frame 7, then thread the positioning rod 4 to the motor 5, then engage and fix the mixing frame 7 to the mixing plate 11, then engage and fix the sleeve 9 to the mixing frame 7, then thread the limiting rod 10 to the mixing plate 11, then engage and fix the sand mixing box 2 to the lifting hopper 3, then pour the raw material into the lifting hopper 3, then turn on the motor 5 to drive the mixing frame 7 to rotate, and finally mix the casting sand. This completes the use of the device. The contents not described in detail in this manual are existing technologies known to those skilled in the art.

[0025] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A sand mixing device for casting molding sand, comprising a base (1), characterized in that: A sand mixing box (2) is welded to the upper end of the base (1), and a lifting hopper (3) is installed at the upper end of the sand mixing box (2). The inner wall of the sand mixing box (2) is fixedly connected with a positioning rod (4), the outer wall of the positioning rod (4) is fixedly connected with a motor (5), one end of the motor (5) is fixedly connected with a fixing rod (6), the outer wall of the fixing rod (6) is fixedly connected with a stirring rack (7), both ends of the stirring rack (7) are welded with scraper plates (8), the outer wall of the stirring rack (7) is installed with a sleeve (9), the inner wall of the sleeve (9) is fixedly connected with a limit rod (10), and the outer wall of the limit rod (10) is fixedly connected with a mixing plate (11).

2. The sand mixing device for casting molding sand according to claim 1, characterized in that: The sand mixing box (2) is engaged with the lifting hopper (3), and the outer diameter of the sand mixing box (2) is smaller than the outer diameter of the lifting hopper (3).

3. The sand mixing device for casting molding sand according to claim 1, characterized in that: The positioning rod (4) is threadedly connected to the motor (5), and the positioning rod (4) is symmetrically arranged with respect to the central axis of the motor (5).

4. The sand mixing device for casting molding sand according to claim 1, characterized in that: The outer wall of the scraper (8) is closely fitted with the inner wall of the sand mixing box (2), and the scraper (8) is symmetrically arranged with respect to the central axis of the mixing rack (7).

5. A sand mixing device for casting molding sand according to claim 1, characterized in that: The stirring rack (7) is engaged with the sleeve (9), and the sleeve (9) is set at equal intervals on the outer wall of the stirring rack (7).

6. The sand mixing device for casting molding sand according to claim 1, characterized in that: The limiting rod (10) is threadedly connected to the mixing plate (11), and the inner wall of the mixing plate (11) is designed with openings.

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