Sand mixer for coated sand production

Abstract

The utility model discloses a kind of sand mixers for coated sand production, including mixing chamber, the top of the mixing chamber is equipped with feed inlet, the bottom side of the feed inlet is penetrated with first baffle, the inside of the mixing chamber is provided with interlayer, this sand mixer for coated sand production when feeding and stirring, by moving first baffle can open feed inlet, make raw materials enter mixing chamber, by first shaft and third bevel gear respectively drive second shaft and scraper rod rotate in opposite direction, add hot water or cold water in interlayer to control the temperature in mixing chamber, to control the quantity of feeding using the moving degree of first baffle, simultaneously first shaft drives stirring rod to stir, scraper scrapes the residual raw materials of mixing chamber inner wall, so that raw materials are better mixed, stirring rod and scraper rod rotate in opposite direction, so that the effect of stirring and mixing is better, stirring is more sufficient, control the position in mixing chamber can better make raw materials mix.

Description

Technical Field

[0001] This utility model relates to the field of industrial production equipment technology, specifically a sand mixer for producing coated sand. Background Technology

[0002] With the development of industrial production technology, good industrial production machinery plays a vital role in industrial production efficiency. Among these, the sand mixer is a prime example. A sand mixer is a device specifically designed to uniformly mix the components of molding sand and effectively coat the sand particles with a binder. The sand mixer is the main equipment for casting sand processing and molding sand mixing, and a key piece of equipment for obtaining qualified molding sand.

[0003] Existing sand mixers on the market have problems such as inconvenience in achieving sufficient mixing and difficulty in controlling temperature or feed rate. To address these issues, we propose a sand mixer for coated sand production. Utility Model Content

[0004] The purpose of this utility model is to provide a sand mixer for producing coated sand, so as to solve the problems mentioned in the background art, such as inconvenience in fully mixing and difficulty in controlling temperature or feed rate.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a sand mixer for producing coated sand, comprising a mixing chamber, a feed inlet installed at the top of the mixing chamber, a first baffle penetrating the bottom side of the feed inlet, a sandwich structure inside the mixing chamber, a discharge outlet installed at the bottom of the mixing chamber, a slider penetrating the bottom of the discharge outlet, a housing installed at the top of the slider, a motor installed inside the housing, a first rotating shaft installed at the output end of the motor, a first bevel gear installed on the outer side of the first rotating shaft, a second bevel gear provided on the side of the first bevel gear, and the second bevel gear... A third bevel gear is provided on the side of the gear, a fixing block is provided at the bottom of the third bevel gear, a connecting ring is installed on the top of the third bevel gear, a scraper is installed on the top of the connecting ring, a first rotating shaft passes through the middle of the third bevel gear, the fixing block, and the scraper, a second rotating shaft is installed on the top of the first rotating shaft, an array of stirring rods are installed at equal angles and intervals on the side of the second rotating shaft, a second baffle is installed on the top of the outer shell, a threaded rod is installed on the bottom of the slider, a first gear is installed on the bottom of the threaded rod, a worm is provided on the side of the first gear, and a handle is installed at one end of the worm.

[0006] Preferably, the first baffle is slidably connected to the feed inlet and the mixing chamber.

[0007] Preferably, the first bevel gear is meshed with the second bevel gear, the second bevel gear is rotatably connected to the housing, and the second bevel gear is meshed with the third bevel gear.

[0008] Preferably, the third bevel gear is rotatably connected to the fixed block and the first rotating shaft, the scraper is rotatably connected to the first rotating shaft, and the connecting ring is rotatably connected to the first rotating shaft.

[0009] Preferably, the scraper is in close contact with the interior of the mixing chamber, and a cylindrical hole is provided at the bottom of the mixing chamber, and the second baffle is in close contact with the bottom of the mixing chamber.

[0010] Preferably, the slider is slidably connected to the discharge port, and the bottom of the slider is threadedly connected to the threaded rod.

[0011] Preferably, the first gear is rotatably connected to the discharge port, and the first gear is meshed with the worm gear, and the worm gear is rotatably connected to the discharge port.

[0012] The advantages of this utility model are:

[0013] 1. During feeding and mixing, the feed inlet of this coated sand production mixer can be opened by moving the first baffle, allowing the raw materials to enter the mixing chamber. The first rotating shaft and the third bevel gear drive the second rotating shaft and the scraper to rotate in opposite directions. Hot or cold water is added to the jacket to control the temperature in the mixing chamber. The feed rate is controlled by the degree of movement of the first baffle. At the same time, the first rotating shaft drives the stirring rod to stir, and the scraper scrapes up the residual raw materials on the inner wall of the mixing chamber, so that the raw materials are better mixed. The stirring rod and the scraper rotate in opposite directions, so that the stirring and mixing effect is better and the mixing is more thorough. Controlling the position in the mixing chamber can better mix the raw materials.

[0014] 2. When discharging material, the sand mixer for coated sand production raises the slider by shaking the handle. The slider drives the outer shell and the second baffle to rise. The second baffle fits tightly with the hole at the bottom of the mixing chamber. When the second baffle is raised, the diameter of the outer shell at the bottom of the second baffle is smaller than the second baffle, allowing the mixed raw material to flow into the discharge port for discharge. This allows the raw material in the mixing chamber to flow out for discharge. The discharge port is located at the bottom of the mixing chamber, allowing the raw material in the mixing chamber to flow out completely, achieving a better discharge effect. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the feed inlet structure of this utility model;

[0017] Figure 3 This is a schematic diagram of the internal structure of the hybrid interior of this utility model;

[0018] Figure 4 This is a cross-sectional structural diagram of the present invention;

[0019] Figure 5 This is a schematic diagram of the lifting structure of this utility model;

[0020] Figure 6 This is a schematic diagram of the rotating structure of this utility model.

[0021] In the diagram: 1. Mixing chamber; 2. Feed inlet; 3. First baffle; 4. Jacket; 5. Discharge outlet; 6. Slider; 7. Outer shell; 8. Motor; 9. First rotating shaft; 10. First bevel gear; 11. Second bevel gear; 12. Third bevel gear; 13. Fixing block; 14. Scraper; 15. Second rotating shaft; 16. Stirring rod; 17. Second baffle; 18. Threaded rod; 19. First gear; 20. Worm gear; 21. Handle; 22. Connecting ring. Detailed Implementation

[0022] 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.

[0023] Please see Figure 1-6 This utility model provides a technical solution: a sand mixer for producing coated sand, comprising a mixing chamber 1, a feed inlet 2 installed at the top of the mixing chamber 1, a first baffle 3 penetrating through the bottom side of the feed inlet 2, a sandwich layer 4 inside the mixing chamber 1, a discharge outlet 5 installed at the bottom of the mixing chamber 1, a slider 6 penetrating through the bottom of the discharge outlet 5, a housing 7 installed at the top of the slider 6, a motor 8 installed inside the housing 7, a first rotating shaft 9 installed at the output end of the motor 8, a first bevel gear 10 installed on the outer side of the first rotating shaft 9, a second bevel gear 11 arranged on the side of the first bevel gear 10, and a third bevel gear 12 arranged on the side of the second bevel gear 11. A fixing block 13 is provided at the bottom of the third bevel gear 12, a connecting ring 22 is installed at the top of the third bevel gear 12, a scraper 14 is installed at the top of the connecting ring 22, a first rotating shaft 9 passes through the middle of the third bevel gear 12, the fixing block 13, and the scraper 14, a second rotating shaft 15 is installed at the top of the first rotating shaft 9, an array of stirring rods 16 are installed at equal angles and intervals on the side of the second rotating shaft 15, a second baffle 17 is installed at the top of the outer shell 7, a threaded rod 18 is installed at the bottom of the slider 6, a first gear 19 is installed at the bottom of the threaded rod 18, a worm gear 20 is provided on the side of the first gear 19, and a handle 21 is installed at one end of the worm gear 20.

[0024] The present invention further explains that the first baffle 3 is slidably connected to the feed inlet 2 and the mixing chamber 1. The raw material can be fed in by sliding the first baffle 3, and the feed amount of the raw material is controlled according to the degree of movement of the first baffle 3.

[0025] The present invention further explains that the first bevel gear 10 is meshed with the second bevel gear 11, and the second bevel gear 11 is rotatably connected to the outer casing 7. The second bevel gear 11 is also meshed with the third bevel gear 12. The first bevel gear 10 drives the second bevel gear 11 to rotate, and the second bevel gear 11 drives the third bevel gear 12 to rotate, so that the third bevel gear 12 can rotate in the opposite direction to the first bevel gear 10.

[0026] This utility model further explains that the third bevel gear 12 is rotatably connected to the fixed block 13 and the first rotating shaft 9, and the scraper 14 is rotatably connected to the first rotating shaft 9. The connecting ring 22 is rotatably connected to the first rotating shaft 9. The first rotating shaft 9 drives the second rotating shaft 15 to rotate, and the third bevel gear 12 drives the scraper 14 and the second rotating shaft 15 to rotate in opposite directions through the connecting ring 22, thereby achieving a better stirring effect.

[0027] The present invention further explains that the scraper 14 is in close contact with the interior of the mixing chamber 1, and a cylindrical hole is provided at the bottom of the mixing chamber 1. The second baffle 17 is in close contact with the bottom of the mixing chamber 1. By the close contact of the scraper 14 with the interior of the mixing chamber 1, the material in close contact with the inner wall of the mixing chamber 1 can be scraped up and stirred. The second baffle 17 can be lifted to allow the stirred material to flow out of the mixing chamber 1 and into the discharge port 5.

[0028] This utility model further explains that the slider 6 is slidably connected to the discharge port 5, and the bottom of the slider 6 is threadedly connected to the threaded rod 18. The rotation of the threaded rod 18 drives the slider 6 to rise and fall, and the slider 6 drives the second baffle 17 to rise and fall.

[0029] The present invention further explains that the first gear 19 is rotatably connected to the discharge port 5, and the first gear 19 is meshed with the worm 20, and the worm 20 is rotatably connected to the discharge port 5. By shaking the handle 21, the worm 20 is driven to rotate, the worm 20 drives the first gear 19 to rotate, and the first gear 19 drives the threaded rod 18 to rotate.

[0030] Working principle:

[0031] For this type of sand mixer, firstly, the first baffle 3 is opened, then the raw material is poured into the feed inlet 2. The movement of the first baffle 3 is controlled according to the user's required feed amount. Then, the motor 8 is turned on, driving the first rotating shaft 9 and the first bevel gear 10 to rotate. The first bevel gear 10 drives the second bevel gear 11 to rotate, and the second bevel gear 11 drives the third bevel gear 12 to rotate in the opposite direction to the first bevel gear 10. The first rotating shaft 9 drives the second rotating shaft 15 and the stirring rod 16 to rotate, and the third bevel gear 12 drives the scraper 14 to rotate. The scraper 14 and the stirring rod 16 rotate in opposite directions. To achieve better mixing, hot or cold water can be added to the jacket 4 during mixing to control the temperature in the mixing chamber 1, thus improving the mixing effect. After mixing, crank the handle 21 to rotate the worm gear 20, which in turn rotates the first gear 19, which in turn rotates the threaded rod 18. The rotation of the threaded rod 18 causes the slider 6 to rise and fall, which in turn causes the outer shell 7 and the second baffle 17 to rise. The diameter of the outer shell 7 is smaller than the diameter of the hole at the bottom of the mixing chamber 1, allowing the raw material to flow out into the discharge port 5. This completes the entire process of using the sand mixer.

[0032] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0033] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A sand mixer for producing coated sand, comprising a mixing chamber (1), characterized in that: A feed inlet (2) is installed at the top of the mixing chamber (1), and a first baffle (3) passes through the bottom side of the feed inlet (2). A sandwich layer (4) is provided inside the mixing chamber (1). A discharge outlet (5) is installed at the bottom of the mixing chamber (1), and a slider (6) passes through the bottom of the discharge outlet (5). A housing (7) is installed at the top of the slider (6), and a motor (8) is installed inside the housing (7). A first rotating shaft (9) is installed at the output end of the motor (8). A first bevel gear (10) is installed on the outside of the first rotating shaft (9). A second bevel gear (11) is provided on the side of the first bevel gear (10), and a third bevel gear (12) is provided on the side of the second bevel gear (11). A bottom of the third bevel gear (12) is provided with... The fixed block (13) has a connecting ring (22) installed on the top of the third bevel gear (12), and a scraper (14) installed on the top of the connecting ring (22). A first rotating shaft (9) passes through the middle of the third bevel gear (12), the fixed block (13), and the scraper (14). A second rotating shaft (15) is installed on the top of the first rotating shaft (9). An array of stirring rods (16) is installed at equal angles and at equal intervals on the side of the second rotating shaft (15). A second baffle (17) is installed on the top of the outer shell (7). A threaded rod (18) is installed on the bottom of the slider (6). A first gear (19) is installed on the bottom of the threaded rod (18). A worm (20) is provided on the side of the first gear (19). A handle (21) is installed on one end of the worm (20).

2. The sand mixer for producing coated sand according to claim 1, characterized in that: The first baffle (3) is slidably connected to the feed inlet (2) and the mixing chamber (1).

3. The sand mixer for producing coated sand according to claim 1, characterized in that: The first bevel gear (10) is meshed with the second bevel gear (11), and the second bevel gear (11) is rotatably connected to the housing (7), and the second bevel gear (11) is meshed with the third bevel gear (12).

4. The sand mixer for producing coated sand according to claim 1, characterized in that: The third bevel gear (12) is rotatably connected to the fixed block (13) and the first rotating shaft (9), and the scraper (14) is rotatably connected to the first rotating shaft (9), and the connecting ring (22) is rotatably connected to the first rotating shaft (9).

5. A sand mixer for producing coated sand according to claim 1, characterized in that: The scraper (14) is in close contact with the interior of the mixing chamber (1), and a cylindrical hole is provided at the bottom of the mixing chamber (1), and the second baffle (17) is in close contact with the bottom of the mixing chamber (1).

6. A sand mixer for producing coated sand according to claim 1, characterized in that: The slider (6) is slidably connected to the discharge port (5), and the bottom of the slider (6) is threadedly connected to the threaded rod (18).

7. A sand mixer for producing coated sand according to claim 1, characterized in that: The first gear (19) is rotatably connected to the discharge port (5), and the first gear (19) is meshed with the worm (20), and the worm (20) is rotatably connected to the discharge port (5).

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