Sand mixer for casting automobile parts

Abstract

The utility model discloses a kind of sand mixer for automobile parts casting, belong to automobile parts casting field, including base, the upper end fixed mounting of base has sand mixing barrel, the upper end of sand mixing barrel is rotatably installed with cover plate, the right end fixed mounting of base has driving motor, the output shaft fixed mounting of driving motor has stirring shaft, multiple groups of stirring vane are annularly installed on stirring shaft, sand mixing tank is rotatably installed in base, and the left end upside and right end downside of sand mixing tank are all provided with through opening;By setting drive assembly, the meshing rotation of first driving gear through multiple groups of first driven gear and first gear ring is utilized, so that the output shaft of driving motor drives stirring shaft and multiple groups of stirring vane to rotate, and then sand mixing tank is driven to rotate, further improve the mixing efficiency of material, so that material mixing is more uniform.

Description

Technical Field

[0001] This utility model relates to the field of automotive parts casting technology, specifically a sand mixer for automotive parts casting. Background Technology

[0002] With the fast pace of urban life, family cars have become an essential part of travel for every household. The popularity of family cars has driven the vigorous development of the automotive parts casting industry. In the automotive parts casting process, sand molds are often used as models for casting. Before molding the sand mold, a sand mixer is needed to mix the old sand, new sand, molding sand binder and auxiliary materials.

[0003] An investigation revealed that a Chinese utility model invention patent discloses a sand mixer for casting (publication number: CN222806051U), which includes a base, a sand mixing tank, and a limiting component. The sand mixing tank is located at the upper end of the base, and the limiting component is located at both ends of the outer side of the sand mixing tank. The limiting component includes an inner limiting ring, an outer limiting ring, and rollers. The inner limiting ring is located at both ends of the outer side of the sand mixing tank, and the outer limiting ring is located outside the inner limiting ring. The rollers are located between the outer limiting ring and the inner limiting ring.

[0004] Although the aforementioned patent achieves the purpose of limiting and guiding the sand mixing tank by setting inner and outer limiting rings, enabling the sand mixing tank to rotate smoothly, the mixing efficiency is low when mixing old sand, new sand, molding sand, binder and auxiliary materials by rotating the sand mixing tank. In addition, the material inside the sand mixing tank is prone to uneven distribution during the rotation process, resulting in poor mixing effect.

[0005] Therefore, this utility model provides a sand mixer for casting automotive parts to solve the above problems. Utility Model Content

[0006] (a) Technical problems to be solved

[0007] This utility model provides a sand mixer for casting automotive parts, aiming to solve the problems mentioned in the background art.

[0008] (II) Technical Solution

[0009] To achieve the above objectives, this utility model provides the following technical solution: It includes a base, a sand mixing cylinder fixedly installed at the upper end of the base, a cover plate rotatably installed at the upper end of the sand mixing cylinder, a drive motor fixedly installed at the right end of the base, a stirring shaft fixedly installed on the output shaft of the drive motor, multiple sets of stirring blades annularly installed on the stirring shaft, a sand mixing tank rotatably installed inside the base, an opening on the upper left side and the lower right side of the sand mixing tank, a discharge pipe provided on the lower right side of the sand mixing cylinder, a drive assembly provided at the connection between the right end of the sand mixing tank and the inner wall of the sand mixing cylinder, and a wall scraping assembly provided inside the sand mixing tank.

[0010] As a preferred technical solution of this application, the drive assembly includes a first driving gear, which is fixedly installed on the right end of the stirring shaft. Multiple sets of first driven gears are arranged between the right side of the sand mixing tank and the right inner wall of the sand mixing cylinder. A first gear ring is fixedly installed on the right side of the sand mixing tank, and the multiple sets of first driven gears are located between the first driving gear and the first gear ring.

[0011] As a preferred technical solution of this application, the multiple sets of stirring blades on the stirring shaft and the inner wall of the multiple sets of sand mixing tanks are all composed of arc-shaped plates.

[0012] As a preferred technical solution of this application, the wall scraping assembly includes two sets of turntables, two sets of scrapers are fixedly installed between the two sets of turntables, the two sets of scrapers are in contact with the inner wall of the sand mixing tank, a second toothed ring is fixedly installed on the right side of the turntable inside the right end of the sand mixing tank, a second driving gear is fixedly installed on the inner wall of the right end of the sand mixing tank, and multiple sets of second driven gears are arranged between the second toothed ring and the second driving gear.

[0013] As a preferred technical solution of this application, a climbing frame is fixedly installed on the front side of the base, and the upper end of the climbing frame is flush with the upper end of the sand mixing cylinder.

[0014] As a preferred technical solution of this application, the inner wall of the sand mixing tank is in contact with the lower inner wall of the sand mixing cylinder, and the lower inner wall of the sand mixing cylinder has the same arc shape as the outer wall of the sand mixing tank.

[0015] As a preferred technical solution of this application, the opening of the inlet on the lower right side of the sand mixing tank is aligned with the position of the discharge pipe on the lower right side of the sand mixing cylinder.

[0016] (III) Beneficial Effects

[0017] 1. This utility model, by setting up a wall scraping component, uses two sets of scrapers to scrape the material on the inner wall of the mixing tank, avoiding material residue on the inner wall of the mixing tank, improving the practicality of the wall scraping component, and preventing the material from sticking to the inner wall of the mixing tank during mixing, thus preventing it from being completely discharged and resulting in excessive material waste.

[0018] 2. This utility model, by setting up a drive assembly, utilizes the first driving gear to rotate through the meshing of multiple sets of first driven gears and the first gear ring, so that the output shaft of the drive motor drives the stirring shaft and multiple sets of stirring blades to rotate, thereby driving the sand mixing tank to rotate, further improving the mixing efficiency of the material, making the material mix more uniform, and solving the problem that the material inside the sand mixing tank is easily unevenly distributed during the rotation process, resulting in poor mixing effect. Attached Figure Description

[0019] Figure 1 This is a front view structural diagram of a sand mixer for casting automotive parts;

[0020] Figure 2 This is a rear view cross-sectional schematic diagram of a sand mixer for casting automotive parts.

[0021] Figure 3 This is a schematic cross-sectional view of the drive component in a sand mixer for casting automotive parts.

[0022] Figure 4 This is a front view schematic diagram of the scraping component in a sand mixer for casting automotive parts.

[0023] In the picture:

[0024] 1. Base; 2. Mixing cylinder; 3. Cover plate; 4. Elevating frame; 5. Drive motor; 6. Stirring shaft; 7. Stirring blades; 8. Mixing tank; 9. First driving gear; 10. First driven gear; 11. First gear ring; 12. Outlet; 13. Turntable; 14. Scraper; 15. Second gear ring; 16. Second driving gear; 17. Second driven gear; 18. Discharge pipe. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] This utility model provides a sand mixer for casting automotive parts, such as... Figure 1-4As shown, the sand mixer for casting automotive parts includes a base 1, a sand mixing cylinder 2 fixedly installed at the upper end of the base 1, a cover plate 3 rotatably installed at the upper end of the sand mixing cylinder 2, a drive motor 5 fixedly installed at the right end of the base 1, a stirring shaft 6 fixedly installed on the output shaft of the drive motor 5, multiple sets of stirring blades 7 circumferentially installed on the stirring shaft 6, a sand mixing tank 8 rotatably installed inside the base 1, an opening 12 is provided on the upper left side and the lower right side of the sand mixing tank 8, a discharge pipe 18 is provided on the lower right side of the sand mixing cylinder 2, a drive assembly is provided at the connection between the right end of the sand mixing tank 8 and the inner wall of the sand mixing cylinder 2, and a wall scraping assembly is provided inside the sand mixing tank 8.

[0027] Old sand, new sand, molding sand binder, and auxiliary materials are put into the mixing tank 8. The output shaft of the drive motor 5 drives the stirring shaft 6 and stirring blades 7 to rotate. At the same time, the rotation of the stirring shaft 6 drives the mixing tank 8 to rotate through the drive assembly, which further improves the mixing efficiency when mixing old sand, new sand, molding sand binder, and auxiliary materials. At the same time, the wall scraping component can scrape the material on the inner wall of the mixing tank 8 to prevent material residue on the inner wall of the mixing tank 8 and improve the practicality of the sand mixer.

[0028] The drive assembly includes a first drive gear 9, which is fixedly installed on the right end of the stirring shaft 6. Multiple sets of first driven gears 10 are arranged between the right side of the sand mixing tank 8 and the right inner wall of the sand mixing cylinder 2. A first gear ring 11 is fixedly installed on the right side of the sand mixing tank 8. Multiple sets of first driven gears 10 are located between the first drive gear 9 and the first gear ring 11.

[0029] When the stirring shaft 6 rotates, the first driving gear 9 rotates accordingly, and through the meshing action of multiple sets of first driven gears 10 and the first gear ring 11, it drives the sand mixing tank 8 to rotate within the base 1, thereby achieving comprehensive mixing of the materials inside the sand mixer and improving the mixing efficiency.

[0030] The multiple sets of stirring blades 7 on the stirring shaft 6 and the inner wall of the multiple sets of sand mixing tanks 8 are all composed of arc-shaped plates.

[0031] This design allows the stirring blades 7 to better mix the old sand, new sand, molding sand, binder, and auxiliary materials in the mixing tank 8 when they rotate, improving the mixing effect and ensuring that the materials are mixed evenly.

[0032] The wall scraping assembly includes two sets of turntables 13, and two sets of scrapers 14 are fixedly installed between the two sets of turntables 13. The two sets of scrapers 14 are in contact with the inner wall of the sand mixing tank 8. A second toothed ring 15 is fixedly installed on the right side of the turntable 13 inside the right end of the sand mixing tank 8. A second driving gear 16 is fixedly installed on the inner wall of the right end of the sand mixing tank 8. Multiple sets of second driven gears 17 are arranged between the second toothed ring 15 and the second driving gear 16.

[0033] When the sand mixing tank 8 rotates within the base 1, it drives the second drive gear 16 to rotate. The rotation of the second drive gear 16 drives the two sets of turntables 13, the two sets of scrapers 14, and the second gear ring 15 to rotate through multiple sets of second driven gears 17. This scrapes the material on the inner wall of the sand mixing tank 8, preventing material residue on the inner wall of the sand mixing tank 8 and further improving practicality and mixing effect.

[0034] A climbing frame 4 is fixedly installed on the front side of the base 1, and the upper end of the climbing frame 4 is flush with the upper end of the sand mixing cylinder 2.

[0035] The elevated platform 4 facilitates staff to climb up and observe or repair the interior of the sand mixing cylinder 2.

[0036] The inner wall of the sand mixing tank 8 is in contact with the lower inner wall of the sand mixing cylinder 2, and the lower inner wall of the sand mixing cylinder 2 has the same arc shape as the outer wall of the sand mixing tank 8.

[0037] This design ensures a tight seal between the mixing tank 8 and the mixing cylinder 2 when they rotate, preventing material leakage.

[0038] The opening of the port 12 on the lower right side of the sand mixing tank 8 is aligned with the position of the discharge pipe 18 on the lower right side of the sand mixing cylinder 2.

[0039] After the sand is mixed, the material can be discharged through the opening 12 and the discharge pipe 18 for easy collection and use.

[0040] Working principle: In use, the drive motor 5 is first started. The output shaft of the drive motor 5 drives the stirring shaft 6 and multiple sets of stirring blades 7 to rotate. At the same time, the rotation of the stirring shaft 6 drives the first driving gear 9 to rotate. The first driving gear 9, through the meshing of multiple sets of first driven gears 10 and the first gear ring 11, drives the sand mixing tank 8 to rotate within the base 1. At this time, the old sand, new sand, molding sand, binder, and auxiliary materials are thoroughly mixed and stirred within the sand mixing tank 8 by the combined action of the multiple sets of stirring blades 7 and the rotation of the sand mixing tank 8, improving the mixing efficiency. Simultaneously, as the sand mixing tank 8 rotates, it carries... The second driving gear 16 rotates, which drives two sets of turntables 13, two sets of scrapers 14 and a second gear ring 15 to rotate through multiple sets of second driven gears 17. The two sets of scrapers 14 scrape the material on the inner wall of the mixing tank 8, preventing material residue on the inner wall of the mixing tank 8, and further improving the practicality and mixing effect of the sand mixer. After the sand is mixed, the material can be discharged through the opening 12 on the lower right side of the mixing tank 8 and the discharge pipe 18 on the lower right side of the mixing cylinder 2, which is convenient for collection and use. The whole sand mixing process is efficient and uniform, and the structure is simple, easy to operate and maintain.

[0041] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A sand mixer for casting automotive parts, comprising a base (1), characterized in that: A sand mixing cylinder (2) is fixedly installed at the upper end of the base (1). A cover plate (3) is rotatably installed at the upper end of the sand mixing cylinder (2). A drive motor (5) is fixedly installed at the right end of the base (1). A stirring shaft (6) is fixedly installed on the output shaft of the drive motor (5). Multiple sets of stirring blades (7) are installed in a ring on the stirring shaft (6). A sand mixing tank (8) is rotatably installed inside the base (1). A passage (12) is opened on the upper left side and the lower right side of the sand mixing tank (8). A discharge pipe (18) is provided on the lower right side of the sand mixing cylinder (2). A drive assembly is provided at the connection between the right end of the sand mixing tank (8) and the inner wall of the sand mixing cylinder (2). A wall scraping assembly is provided inside the sand mixing tank (8).

2. The sand mixer for casting automotive parts according to claim 1, characterized in that: The drive assembly includes a first drive gear (9), which is fixedly installed on the right end of the stirring shaft (6). Multiple sets of first driven gears (10) are arranged between the right side of the sand mixing tank (8) and the right inner wall of the sand mixing cylinder (2). A first gear ring (11) is fixedly installed on the right side of the sand mixing tank (8). Multiple sets of first driven gears (10) are located between the first drive gear (9) and the first gear ring (11).

3. The sand mixer for casting automotive parts according to claim 1, characterized in that: The multiple sets of stirring blades (7) on the stirring shaft (6) and the inner wall of the multiple sets of sand mixing tanks (8) are all composed of arc-shaped plates.

4. The sand mixer for casting automotive parts according to claim 1, characterized in that: The wall scraping assembly includes two sets of turntables (13), and two sets of scrapers (14) are fixedly installed between the two sets of turntables (13). The two sets of scrapers (14) are in contact with the inner wall of the sand mixing tank (8). A second toothed ring (15) is fixedly installed on the right side of the turntable (13) inside the right end of the sand mixing tank (8). A second driving gear (16) is fixedly installed on the inner wall of the right end of the sand mixing tank (8). Multiple sets of second driven gears (17) are arranged between the second toothed ring (15) and the second driving gear (16).

5. A sand mixer for casting automotive parts according to claim 1, characterized in that: A climbing frame (4) is fixedly installed on the front side of the base (1), and the upper end of the climbing frame (4) is flush with the upper end of the sand mixing cylinder (2).

6. A sand mixer for casting automotive parts according to claim 1, characterized in that: The inner wall of the sand mixing tank (8) is in contact with the lower inner wall of the sand mixing cylinder (2), and the lower inner wall of the sand mixing cylinder (2) has the same arc shape as the outer wall of the sand mixing tank (8).

7. A sand mixer for casting automotive parts according to claim 1, characterized in that: The opening of the inlet (12) on the lower right side of the sand mixing tank (8) is aligned with the position of the discharge pipe (18) on the lower right side of the sand mixing cylinder (2).

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