High-precision weighing and feeding device for trace additives

Abstract

The utility model relates to material conveying and metering technical field discloses high accuracy weighing feeding device of trace additive, including frame, the top fixedly connected with weighing sensor of frame, the top fixedly connected with the feeding pipe of weighing sensor, the inside installation of feeding pipe has automatic feeding mechanism, the top fixedly connected with feed bin of feeding pipe, the right -hand member fixedly connected with the discharge pipe of feeding pipe, the top installation of frame has automatic feeding mechanism, automatic feeding mechanism includes vacuum pump, the fixedly connected with suction pipe of the air -exhaust end of vacuum pump, the other end fixedly connected with storage bin of suction pipe. In the utility model, the air in storage bin is taken away through suction pipe by vacuum pump and forms negative pressure, thereby making material be sucked into storage bin through suction gun and suction pipe, and then opening electric gate valve makes material enter feed bin through feed port, thereby accomplishing the automatic feeding process of device.

Description

Technical Field

[0001] This utility model relates to the field of material conveying and metering technology, and in particular to a high-precision weighing and feeding device for trace additives. Background Technology

[0002] Trace additives are small amounts of functional substances added in industrial production, food processing, and pharmaceutical manufacturing to improve product performance, enhance product quality, or meet specific process requirements. Their dosage is typically a few thousandths or even a few ten-thousandths of the total product mass. Although the amount added is minuscule, trace additives have a crucial impact on the physicochemical properties, efficacy, and safety of the product. Therefore, the addition process must be strictly controlled during production. In production processes involving trace additives, precise control of the dosage is a core element in ensuring product quality stability. If the dosage deviation exceeds the allowable range, it may lead to substandard product performance, increased production costs, or even safety hazards. Therefore, specialized weighing and dispensing equipment is required to achieve quantitative dosage.

[0003] Existing micro-additive weighing and feeding equipment relies heavily on manual assistance for feeding, resulting in low feeding efficiency and difficulty in meeting the needs of continuous production. On the other hand, materials are prone to accumulating and clumping in the silo due to static accumulation, which affects the conveying and feeding process. Therefore, a high-precision micro-additive weighing and feeding device is proposed to solve the above problems. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a high-precision weighing and feeding device for trace additives, which aims to improve the problems of low feeding efficiency and material accumulation and clumping in the silo that affect the conveying and feeding in the existing technology.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A high-precision weighing and feeding device for trace additives includes a frame, a weighing sensor fixedly connected to the top of the frame, a conveying pipe fixedly connected to the top of the weighing sensor, an automatic feeding mechanism installed inside the conveying pipe, a feed hopper fixedly connected to the top of the conveying pipe, a discharge pipe fixedly connected to the right end of the conveying pipe, and an automatic feeding mechanism installed on the top of the frame.

[0007] The automatic feeding mechanism includes a vacuum pump, which is fixedly connected to the top of the frame. The vacuum pump has a suction pipe fixedly connected to its suction end, and a storage bin is fixedly connected to the other end of the suction pipe. The storage bin is fixedly connected to the top of the frame, and a suction assembly is installed on the right side of the storage bin.

[0008] As a further description of the above technical solution:

[0009] A motor is fixedly connected to the outside of the feeding hopper. A helical gear 1 is fixedly connected to the output end of the motor. The helical gear 1 is rotatably connected to the inside of the feeding hopper. A helical gear 2 and a helical gear 3 are rotatably connected inside the feeding hopper. The helical gear 2 and the helical gear 3 mesh with the helical gear 1. A rotating shaft 2 is fixedly connected to the bottom of the helical gear 2. Multiple blades 1 are fixedly connected to the outside of the rotating shaft 2. A rotating frame is fixedly connected to the bottom of the helical gear 3. The rotating frame is rotatably connected to the outer periphery of the rotating shaft 2. Multiple blades 2 are fixedly connected to the outside of the rotating frame. A brush is fixedly connected to the outside of the rotating frame.

[0010] As a further description of the above technical solution:

[0011] The automatic feeding mechanism includes a servo motor, which is fixedly connected to the left side of the weighing sensor. The output end of the servo motor is fixedly connected to a rotating shaft, which is rotatably connected inside the feeding pipe. An auger is fixedly connected to the outer periphery of the rotating shaft.

[0012] As a further description of the above technical solution:

[0013] The suction assembly includes a suction pipe, which is fixedly connected to the right side of the storage bin, and a suction gun is fixedly connected to the end of the suction pipe.

[0014] As a further description of the above technical solution:

[0015] The top of the feeding hopper has a feeding port, and the storage hopper is located above the feeding port.

[0016] As a further description of the above technical solution:

[0017] An electric gate valve is installed at the bottom of the storage silo;

[0018] As a further description of the above technical solution:

[0019] The top of the conveying pipe is provided with a second inlet, and the feeding bin is located above the second inlet;

[0020] As a further description of the above technical solution:

[0021] The bottom of the frame is fixedly connected to multiple legs.

[0022] This utility model has the following beneficial effects:

[0023] 1. In this utility model, the vacuum pump draws out the air in the storage bin through the suction pipe to form a negative pressure, so that the material is sucked into the storage bin through the suction gun and suction pipe. Then, the electric gate valve at the bottom of the storage bin is opened to allow the material to enter the feeding bin through the feed port, thus completing the automatic feeding process of the device.

[0024] 2. In this utility model, the motor drives the first helical gear to rotate, thereby causing the second and third helical gears to rotate in opposite directions, which in turn causes the first and second blades to rotate in opposite directions, enhancing the mixing and dispersing effect on the material. The brush cleans the wall of the feed hopper, preventing material accumulation and adhesion from affecting the conveying and feeding. Attached Figure Description

[0025] Figure 1 This is a three-dimensional schematic diagram of the high-precision weighing and feeding device for trace additives proposed in this utility model.

[0026] Figure 2 This is a side view of the high-precision weighing and feeding device for trace additives proposed in this utility model.

[0027] Figure 3 This is a schematic diagram of the feeding hopper of the high-precision weighing and feeding device for trace additives proposed in this utility model.

[0028] Figure 4 This is a schematic diagram of the helical gear one of the high-precision weighing and feeding device for trace additives proposed in this utility model.

[0029] Figure 5 This is a schematic diagram of the conveying pipe of the high-precision weighing and feeding device for trace additives proposed in this utility model.

[0030] Legend:

[0031] 1. Frame; 2. Weighing sensor; 3. Feed hopper; 4. Conveying pipe; 5. Discharge pipe; 6. Servo motor; 7. Shaft 1; 8. Screwdriver; 9. Feed inlet 1; 10. Feed inlet 2; 11. Motor; 12. Helical gear 1; 13. Helical gear 2; 14. Shaft 2; 15. Paddle 1; 16. Helical gear 3; 17. Rotating frame; 18. Paddle 2; 19. Brush; 20. Vacuum pump; 21. Suction pipe; 22. Storage hopper; 23. Suction pipe; 24. Suction gun; 25. Electric gate valve; 26. Support legs. Detailed Implementation

[0032] 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.

[0033] Reference Figures 1-3 This utility model provides an embodiment of a high-precision weighing and feeding device for trace additives, comprising a frame 1, a weighing sensor 2 fixedly connected to the top of the frame 1, and a conveying pipe 4 fixedly connected to the top of the weighing sensor 2. The weighing sensor 2 accurately measures the weight of the material inside the conveying pipe 4, thereby achieving high-precision weighing of the trace additives. An automatic feeding mechanism is installed inside the conveying pipe 4. A feed hopper 3 is fixedly connected to the top of the conveying pipe 4, and a discharge pipe 5 is fixedly connected to the right end of the conveying pipe 4. The automatic feeding mechanism can transport the material along the conveying pipe 4 to the discharge pipe 5 for discharge, thus completing the feeding process. The frame 1... An automatic feeding mechanism is installed on the top of the device, which can automatically feed trace additives. The automatic feeding mechanism includes a vacuum pump 20, which is fixedly connected to the top of the frame 1. The vacuum pump 20 is fixedly connected to a suction pipe 21 at the suction end, and the other end of the suction pipe 21 is fixedly connected to a storage bin 22. The storage bin 22 is fixedly connected to the top of the frame 1. A suction component is installed on the right side of the storage bin 22. After the vacuum pump 20 is started, the vacuum pump 20 sucks away the air in the storage bin 22 through the suction pipe 21, so that a negative pressure is formed inside the storage bin 22, thereby allowing the suction component to suck the trace additives into the storage bin 22 to complete the feeding.

[0034] Reference Figures 1-4A motor 11 is fixedly connected to the outside of the feed hopper 3. A helical gear 12 is fixedly connected to the output end of the motor 11. The helical gear 12 is rotatably connected inside the feed hopper 3. Helical gears 2 13 and 3 16 are rotatably connected inside the feed hopper 3. Helical gears 2 13 and 3 16 mesh with helical gear 12. A rotating shaft 2 14 is fixedly connected to the bottom of helical gear 2 13. Multiple blades 15 are fixedly connected to the outside of the rotating shaft 2 14. A rotating frame 17 is fixedly connected to the bottom of helical gear 3 16. The rotating frame 17 is rotatably connected to the outer periphery of the rotating shaft 2 14. Multiple blades are fixedly connected to the outside of the rotating frame 17. A brush 19 is fixedly connected to the outer side of the rotating frame 17. The motor 11 drives the helical gear 12 to rotate, which in turn drives the helical gear 13 and the helical gear 16 to rotate in opposite directions. This causes the rotating shaft 14 and the rotating frame 17 to rotate in opposite directions. The opposing rotation of the blades 15 and 18 increases the mixing effect on the material, ensuring that the material is well dispersed in the feed hopper 3. This prevents the material from accumulating and sticking together, which would affect the conveying process. The brush 19 on the outer side of the rotating frame 17 can clean the walls of the feed hopper 3, preventing the material from sticking to the walls of the feed hopper 3.

[0035] Reference Figure 1 , Figure 2 , Figure 3 and Figure 5The top of the conveying pipe 4 is provided with a second inlet 10, and the feeding bin 3 is located above the second inlet 10. The automatic feeding mechanism includes a servo motor 6, which is fixedly connected to the left side of the weighing sensor 2. The output end of the servo motor 6 is fixedly connected to a rotating shaft 7, which is rotatably connected inside the conveying pipe 4. An auger 8 is fixedly connected to the outer periphery of the rotating shaft 7. The material in the feeding bin 3 enters the conveying pipe 4 through the second inlet 10. The servo motor 6 is started, driving the rotating shaft 7 and the auger 8 to rotate, so that the material is conveyed from the left end to the right end of the conveying pipe 4, and finally discharged from the discharge pipe 5 to complete the feeding. During this process, the weighing sensor 2 monitors the weight of the material in the conveying pipe 4 in real time to achieve high-precision weighing. The suction assembly includes a suction pipe 23, which is fixedly connected to the right side of the storage bin 22. The end of the suction pipe 23 is... A suction gun 24 is fixedly connected. Under negative pressure, the suction gun 24 can suck the material into the storage bin 22 along the suction pipe 23 to provide material for subsequent feeding operations. An electric gate valve 25 is installed at the bottom of the storage bin 22. The electric gate valve 25 drives the gate to move along the valve body guide rail through an electric drive component. When the gate is raised, the valve channel is opened, allowing the material to pass through. When the gate is lowered and tightly fits the valve seat, the channel is closed, blocking the material flow. This is existing technology and will not be described in detail here. The top of the feeding bin 3 has a feed inlet 9. The storage bin 22 is located above the feed inlet 9. After opening the electric gate valve 25, the material in the storage bin 22 can enter the feeding bin 3 through the feed inlet 9. Multiple support legs 26 are fixedly connected to the bottom of the frame 1 to support the frame and ensure the stability of the device.

[0036] Working principle: First, after the vacuum pump 20 is started, a negative pressure is formed in the storage bin 22 through the suction pipe 21, so that the material is sucked into the storage bin 22 through the suction gun 24 and the suction pipe 23. When it is necessary to feed material into the feed bin 3, the electric gate valve 25 at the bottom of the storage bin 22 is opened so that the material enters the feed bin 3 through the feed inlet 9. The motor 11 drives the helical gear 12 to rotate. The helical gear 12 meshes and drives the helical gear 2 13 and the helical gear 3 16 to rotate in opposite directions. The helical gear 2 13 drives the blade 15 to rotate through the rotating shaft 2 14. The helical gear 3 16 drives the blade 2 18 to rotate through the rotating frame 17, so as to achieve the stirring and dispersion of the material. The brush 19 cleans the bin wall of the feed bin 3, thereby preventing the material from clumping or adhering and affecting the conveying and feeding.

[0037] After the material in the feed hopper 3 enters the conveying pipe 4 through the feed inlet 10, the rotating shaft 7 and the auger 8 are driven to rotate by the servo motor 6, which moves the material from the left end to the right end of the conveying pipe 4, so that the material is finally discharged from the discharge pipe 5. During this process, the weighing sensor 2 monitors the weight of the conveying pipe 4 and the material inside in real time to ensure the feeding accuracy. High-precision weighing and feeding are achieved through the weighing sensor 2 and the servo motor 6.

[0038] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model 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 utility model should be included within the protection scope of the present utility model.

Claims

1. A high-precision weighing and feeding device for trace additives, comprising a frame (1), characterized in that: A weighing sensor (2) is fixedly connected to the top of the frame (1), a conveying pipe (4) is fixedly connected to the top of the weighing sensor (2), an automatic feeding mechanism is installed inside the conveying pipe (4), a feeding bin (3) is fixedly connected to the top of the conveying pipe (4), a discharge pipe (5) is fixedly connected to the right end of the conveying pipe (4), and an automatic feeding mechanism is installed on the top of the frame (1). The automatic feeding mechanism includes a vacuum pump (20), which is fixedly connected to the top of the frame (1). The vacuum pump (20) is fixedly connected to a suction pipe (21) at the suction end, and a storage bin (22) is fixedly connected to the other end of the suction pipe (21). The storage bin (22) is fixedly connected to the top of the frame (1), and a suction assembly is installed on the right side of the storage bin (22).

2. The high-precision weighing and feeding device for trace additives according to claim 1, characterized in that: A motor (11) is fixedly connected to the outside of the feed hopper (3). A helical gear (12) is fixedly connected to the output end of the motor (11). The helical gear (12) is rotatably connected to the inside of the feed hopper (3). A helical gear (2) (13) and a helical gear (3) (16) are rotatably connected inside the feed hopper (3). The helical gear (2) (13) and the helical gear (3) (16) mesh with the helical gear (12). A rotating shaft (2) (14) is fixedly connected to the bottom of the helical gear (2). Multiple blades (15) are fixedly connected to the outside of the rotating shaft (2) (14). A rotating frame (17) is fixedly connected to the bottom of the helical gear (3). The rotating frame (17) is rotatably connected to the outer periphery of the rotating shaft (2) (14). Multiple blades (18) are fixedly connected to the outside of the rotating frame (17). A brush (19) is fixedly connected to the outside of the rotating frame (17).

3. The high-precision weighing and feeding device for trace additives according to claim 1, characterized in that: The automatic feeding mechanism includes a servo motor (6), which is fixedly connected to the left side of the weighing sensor (2). The output end of the servo motor (6) is fixedly connected to a rotating shaft (7), which is rotatably connected inside the feeding pipe (4). An auger (8) is fixedly connected to the outer periphery of the rotating shaft (7).

4. The high-precision weighing and feeding device for trace additives according to claim 1, characterized in that: The suction assembly includes a suction pipe (23), which is fixedly connected to the right side of the storage bin (22), and a suction gun (24) is fixedly connected to the end of the suction pipe (23).

5. The high-precision weighing and feeding device for trace additives according to claim 1, characterized in that: The top of the feeding hopper (3) is provided with a feeding port (9), and the storage hopper (22) is located above the feeding port (9).

6. The high-precision weighing and feeding device for trace additives according to claim 1, characterized in that: An electric gate valve (25) is installed at the bottom of the storage silo (22).

7. The high-precision weighing and feeding device for trace additives according to claim 1, characterized in that: The top of the conveying pipe (4) is provided with a second inlet (10), and the feeding bin (3) is located above the second inlet (10).

8. The high-precision weighing and dispensing device for trace additives according to claim 1, characterized in that: The bottom of the frame (1) is fixedly connected with multiple legs (26).

Images