Double-frequency-conversion spiral constant feeder
By introducing a gear-driven reverse mixing mechanism with long and short mixing rods in a dual-frequency variable screw feeder, combined with a dust collection mechanism, the problem of dust and material adhesion is solved, achieving efficient mixing and cleaning.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HAINAN YERONG IND CO LTD
- Filing Date
- 2025-06-12
- Publication Date
- 2026-05-01
AI Technical Summary
Traditional dual-frequency screw feeders are prone to generating dust during feeding, which can affect health, and materials are also prone to sticking together, which can affect equipment efficiency.
It uses a combination of long and short stirring rods with a stirring frame, and achieves reverse stirring through gear transmission. It also has a dust extraction mechanism to remove dust and prevent materials from sticking together.
It improves mixing efficiency, prevents materials from sticking together, reduces dust dispersion, protects the health of workers, and improves the working efficiency of the equipment.
Smart Images

Figure CN224185158U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of feeders, and in particular to a dual frequency conversion screw quantitative feeder. Background Technology
[0002] A quantitative feeder is an automated device used for continuous and accurate metering and conveying of bulk materials. It is widely used in the production processes of industries such as cement, chemical, metallurgy, food, and power. The dual-frequency conversion screw quantitative feeder is a high-precision, adjustable continuous feeding device. It uses dual frequency converters to control the screw conveyor and the feeding mechanism respectively, so as to achieve accurate metering and conveying of materials.
[0003] Traditional dual-frequency variable screw feeders tend to generate a lot of dust during feeding, which can be quite harmful to workers and affect their physical and mental health. In addition, traditional dual-frequency variable screw feeders are prone to material sticking together when the material is placed at the inlet, which affects the efficiency of the equipment.
[0004] Therefore, those skilled in the art have provided a dual-frequency variable screw feeder to solve the problems mentioned in the background art. Utility Model Content
[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing a dual-frequency variable screw quantitative feeder. Through the long and short stirring rods and the stirring frame in the stirring mechanism, the material in the mixing tank can be continuously stirred. Furthermore, the first, second, third, fourth, and fifth gears can reverse the rotation of the long and short stirring rods and the stirring frame, effectively improving stirring efficiency and preventing material adhesion.
[0006] To achieve the above objectives, the present invention provides the following technical solution:
[0007] A dual-frequency variable screw quantitative feeder includes a base plate, and a dust collection mechanism is provided on the upper surface of the base plate. The dust collection mechanism includes a storage box fixedly connected to the rear end of the upper surface of the base plate, a dust collection box fixedly connected to the front outer wall of the storage box, and dust collection pipes fixedly connected to the front ends of the outer walls on both sides of the dust collection box. A mounting frame is fixedly connected inside the dust collection box, and a dust collection motor is fixedly connected inside the mounting frame. A fan is fixedly connected to the output end of the dust collection motor.
[0008] The upper surface of the storage box is provided with a stirring mechanism. The stirring mechanism includes a fixed column fixedly connected to the rear end of the upper surface of the storage box, a fixed plate fixedly connected to the upper surface of the fixed column, a connecting frame fixedly connected to the upper surface of the fixed plate, a stirring motor provided inside the connecting frame, a second gear fixedly connected to the output end of the stirring motor, a first gear rotatably connected to the outer wall of the second gear, a fifth gear fixedly connected to the lower surface of the first gear, a fourth gear rotatably connected to the outer wall of the fifth gear, a second stirring column fixedly connected to the lower surface of the second gear, a first stirring column sleeved on the outer wall of the second stirring column, and a third gear fixedly connected to the upper surface of the first stirring column.
[0009] Through the above technical solution, the materials in the mixing tank can be continuously stirred by the long stirring rod, the short stirring rod and the stirring frame in the stirring mechanism. Furthermore, the long stirring rod and the short stirring rod can be reversed with the stirring frame by the first gear, the second gear, the third gear, the fourth gear and the fifth gear, which can effectively improve the stirring efficiency and prevent the materials from sticking together.
[0010] Furthermore, a support frame is fixedly connected to the front end of the upper surface of the base plate, and a second fixing frame is fixedly connected to the upper end of the outer walls on both sides of the support frame. A first fixing frame is fitted onto the front end of the outer wall of the suction pipe.
[0011] The above technical solution allows the fan to suck up the material falling from the discharge pipe, effectively preventing dust from spreading everywhere. The suction pipe can also be adjusted to improve the suction efficiency. The dust can be stored in the collection box and retrieved from the collection box.
[0012] Furthermore, a plurality of short stirring rods are fixedly connected to the lower end of the outer wall of the first stirring column, a plurality of long stirring rods are fixedly connected to the upper end of the outer wall of the first stirring column, and a plurality of stirring racks are fixedly connected to the outer wall of the second stirring column.
[0013] The above technical solution enables effective mixing of materials using a mixing rack, a short mixing rod, and the mixing frame itself.
[0014] Furthermore, the second gear meshes with the first gear, the fifth gear meshes with the fourth gear, and the fourth gear meshes with the third gear;
[0015] Through the above technical solution, the first gear, second gear, third gear, fourth gear and fifth gear can reverse the mixing rack and short mixing rod.
[0016] Furthermore, a fixed disk is fixedly connected to the lower surface of the stirring motor, the first gear is rotatably connected to the fixed disk, and the fourth gear is rotatably connected to the fixed disk;
[0017] The above technical solution allows for the limiting of the first and fourth gears via a fixed disc.
[0018] Furthermore, a motor housing is fixedly connected to the front end of the upper surface of the storage box, a conveying pipe is provided on the outer wall of the front end of the motor housing, a conveying rod is provided inside the conveying pipe, a storage box is provided inside the storage box, and a switch door is rotatably connected to one side of the outer wall of the storage box, and a handle is fixedly connected to the outer wall of the switch door away from the storage box.
[0019] The above technical solution allows for the containment of dust using a storage box.
[0020] Furthermore, a metering valve is fixedly connected to the lower end of the outer wall of the conveying pipe, a discharge pipe is fixedly connected to the lower surface of the metering valve, and a mixing tank is fixedly connected to the upper end of the outer wall of the conveying pipe.
[0021] The above technical solution allows for the storage and mixing of materials in a mixing tank.
[0022] Furthermore, the first fixing frame is fixedly connected to the discharge pipe, and the dust suction pipe is engaged with the first fixing frame and the second fixing frame;
[0023] The above technical solution provides support for the suction pipe through the first and second fixing frames.
[0024] This utility model has the following beneficial effects:
[0025] 1. The present invention proposes a dual-frequency variable screw quantitative feeder, which can continuously stir the material in the mixing tank through the long stirring rod and short stirring rod and the stirring frame in the stirring mechanism. Furthermore, the long stirring rod and short stirring rod and the stirring frame can be reversed by the first gear, the second gear, the third gear, the fourth gear and the fifth gear, which can effectively improve the stirring efficiency and prevent the material from sticking together.
[0026] 2. The present invention proposes a dual-frequency variable screw quantitative feeder, which uses a fan to draw dust from the material falling from the discharge pipe through a suction pipe, effectively preventing dust from spreading everywhere. The suction pipe can also be adjusted to draw dust from the discharge pipe, which can effectively improve the dust collection efficiency. Furthermore, a storage box can be used to store the dust, and the dust stored in the storage box can be taken out through a storage container. Attached Figure Description
[0027] Figure 1This is an isometric view of a dual-frequency variable screw quantitative feeder proposed in this utility model;
[0028] Figure 2 This is a schematic diagram of the structure of a dual-frequency variable screw quantitative feeder proposed in this utility model;
[0029] Figure 3 This is an isometric view of the dust collection mechanism in a dual-frequency variable screw quantitative feeder proposed in this utility model;
[0030] Figure 4 This is a side sectional view of a dual-frequency variable screw quantitative feeder proposed in this utility model;
[0031] Figure 5 This is an isometric view of the stirring mechanism in a dual-frequency variable screw quantitative feeder proposed in this utility model;
[0032] Figure 6 This is a schematic diagram of the stirring mechanism in a dual-frequency variable screw quantitative feeder proposed in this utility model.
[0033] Legend:
[0034] 1. Base plate;
[0035] 2. Vacuuming mechanism; 201. Support frame; 202. First fixed frame; 203. Vacuum hose; 204. Second fixed frame; 205. Vacuum box; 206. Storage box; 207. Opening and closing door; 208. Handle; 209. Fan; 2010. Mounting bracket; 2011. Vacuum motor; 2012. Storage box;
[0036] 3. Conveying pipe; 4. Motor box;
[0037] 5. Stirring mechanism; 501. Fixed column; 502. Fixed plate; 503. Stirring tank; 504. Connecting frame; 505. Stirring motor; 506. Fixed plate; 507. First stirring column; 508. Long stirring rod; 509. Stirring frame; 5010. Second stirring column; 5011. Short stirring rod; 5012. First gear; 5013. Second gear; 5014. Third gear; 5015. Fourth gear; 5016. Fifth gear;
[0038] 6. Discharge pipe; 7. Metering valve; 8. Conveying rod. Detailed Implementation
[0039] 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.
[0040] One embodiment provided by this utility model:
[0041] Reference Figure 1 , Figure 4 and Figure 6 A dual-frequency variable screw quantitative feeder includes a base plate 1. A dust collection mechanism 2 is provided on the upper surface of the base plate 1. The dust collection mechanism 2 includes a storage box 206 fixedly connected to the rear end of the upper surface of the base plate 1. A dust collection box 205 is fixedly connected to the front outer wall of the storage box 206. Dust collection pipes 203 are fixedly connected to the front ends of the outer walls on both sides of the dust collection box 205. A mounting frame 2010 is fixedly connected inside the dust collection box 205. A dust collection motor 2011 is fixedly connected inside the mounting frame 2010. A fan 209 is fixedly connected to the output end of the dust collection motor 2011.
[0042] A stirring mechanism 5 is provided on the upper surface of the storage box 206. The stirring mechanism 5 includes a fixed column 501 fixedly connected to the rear end of the upper surface of the storage box 206. A fixed plate 502 is fixedly connected to the upper surface of the fixed column 501. A connecting frame 504 is fixedly connected to the upper surface of the fixed plate 502. A stirring motor 505 is provided inside the connecting frame 504. A second gear 5013 is fixedly connected to the output end of the stirring motor 505. A first gear 5012 is rotatably connected to the outer wall of the second gear 5013. A fifth gear 5016 is fixedly connected to the lower surface of the first gear 5012. A fourth gear 5015 is rotatably connected to the outer wall of the fifth gear 5016. A second stirring column 5010 is fixedly connected to the lower surface of the second gear 5013. A first stirring column 507 is sleeved on the outer wall of the second stirring column 5010. A third gear 5014 is fixedly connected to the upper surface of the first stirring column 507.
[0043] The long stirring rod 508 and short stirring rod 5011 in the stirring mechanism 5, as well as the stirring frame 509, can continuously stir the material in the mixing tank 503. Furthermore, the long stirring rod 508 and short stirring rod 5011 and the stirring frame 509 can be reversed by the first gear 5012, the second gear 5013, the third gear 5014, the fourth gear 5015, and the fifth gear 5016, which can effectively improve the stirring efficiency and prevent the material from sticking together.
[0044] Reference Figure 1 , Figure 2 and Figure 3A support frame 201 is fixedly connected to the front end of the upper surface of the base plate 1. A second fixed frame 204 is fixedly connected to the upper end of the outer walls on both sides of the support frame 201. A first fixed frame 202 is fitted on the front end of the outer wall of the suction pipe 203. The suction pipe 203 can suck up the material falling from the discharge pipe 6 through the fan 209, which can effectively prevent the material from generating dust and floating everywhere. The suction pipe 203 can also adjust the angle of suction on the discharge pipe 6, which can effectively improve the efficiency of suction. The dust can be stored in the storage box 206, and the dust stored in the storage box 2012 can be taken out through the storage box 206.
[0045] Reference Figure 1 , Figure 3 and Figure 5 Multiple short stirring rods 5011 are fixedly connected to the lower end of the outer wall of the first stirring column 507, and multiple long stirring rods 508 are fixedly connected to the upper end of the outer wall of the first stirring column 507. Multiple stirring frames 509 are fixedly connected to the outer wall of the second stirring column 5010. The stirring frames 509, short stirring rods 5011, and stirring frames 509 can effectively stir the material. The second gear 5013 meshes with the first gear 5012, the fifth gear 5016 meshes with the fourth gear 5015, and the fourth gear 5015 meshes with the third gear 5012. 014 meshing, the first gear 5012, the second gear 5013, the third gear 5014, the fourth gear 5015 and the fifth gear 5016 can make the stirring frame 509 and the short stirring rod 5011 and the stirring frame 509 reverse. The lower surface of the stirring motor 505 is fixedly connected to the fixed disk 506. The first gear 5012 is rotatably connected to the fixed disk 506, and the fourth gear 5015 is rotatably connected to the fixed disk 506. The fixed disk 506 can limit the first gear 5012 and the fourth gear 5015.
[0046] Reference Figure 2 , Figure 3 and Figure 4A motor housing 4 is fixedly connected to the front end of the upper surface of the storage box 206. A conveying pipe 3 is provided on the outer wall of the front end of the motor housing 4. A conveying rod 8 is provided inside the conveying pipe 3. A storage box 2012 is provided inside the storage box 206. A switch door 207 is rotatably connected to one side of the outer wall of the storage box 206. A handle 208 is fixedly connected to the outer wall of the switch door 207 away from the storage box 206. Dust can be collected through the storage box 2012. A metering valve 7 is fixedly connected to the lower end of the outer wall of the conveying pipe 3. A discharge pipe 6 is fixedly connected to the lower surface of the metering valve 7. A mixing tank 503 is fixedly connected to the upper end of the outer wall of the conveying pipe 3. A certain amount of material can be stored through the mixing tank 503 and the material can be mixed. A first fixed frame 202 is fixedly connected to the discharge pipe 6. A suction pipe 203 is engaged with the first fixed frame 202 and the second fixed frame 204. The first fixed frame 202 and the second fixed frame 204 can support the suction pipe 203.
[0047] Working principle: When the device is needed, first put the material into the mixing tank 503, then start the motor box 4 and the mixing motor 505. When the mixing motor 505 starts, it can drive the second gear 5013 to rotate. The second gear 5013 drives the first gear 5012 and the fifth gear 5016 to rotate. When the fifth gear 5016 rotates, it can drive the fourth gear 5015 to rotate. At this time, the fourth gear 5015 causes the third gear 5014 to rotate. This will cause the short mixing rod 5011 and the long mixing rod 508 to reverse with the mixing frame 509 to mix the material. At the same time, the material is conveyed to the discharge pipe 6 through the conveying rod 8. Then the loading work is carried out. When dust is generated by the material, the dust suction motor 2011 in the dust suction mechanism 2 drives the fan 209 to rotate. At the same time, the position of the dust suction pipe 203 can be adjusted to suck up the dust. Then the dust will fall into the collection box 2012.
[0048] 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 double variable frequency screw doser comprising a base plate (1), characterized in that: A dust collection mechanism (2) is provided on the upper surface of the base plate (1). The dust collection mechanism (2) includes a storage box (206) fixedly connected to the rear end of the upper surface of the base plate (1). A dust collection box (205) is fixedly connected to the front outer wall of the storage box (206). A dust collection pipe (203) is fixedly connected to the front end of both outer walls of the dust collection box (205). A mounting frame (2010) is fixedly connected inside the dust collection box (205). A dust collection motor (2011) is fixedly connected inside the mounting frame (2010). A fan (209) is fixedly connected to the output end of the dust collection motor (2011). A stirring mechanism (5) is provided on the upper surface of the storage box (206). The stirring mechanism (5) includes a fixed column (501) fixedly connected to the rear end of the upper surface of the storage box (206). A fixed plate (502) is fixedly connected to the upper surface of the fixed column (501). A connecting frame (504) is fixedly connected to the upper surface of the fixed plate (502). A stirring motor (505) is provided inside the connecting frame (504). A second gear (5013) is fixedly connected to the output end of the stirring motor (505). A first gear (5012) is rotatably connected to the outer wall of the wheel (5013). A fifth gear (5016) is fixedly connected to the lower surface of the first gear (5012). A fourth gear (5015) is rotatably connected to the outer wall of the fifth gear (5016). A second stirring column (5010) is fixedly connected to the lower surface of the second gear (5013). A first stirring column (507) is sleeved on the outer wall of the second stirring column (5010). A third gear (5014) is fixedly connected to the upper surface of the first stirring column (507).
2. The dual-frequency variable screw feeder according to claim 1, characterized in that: A support frame (201) is fixedly connected to the front end of the upper surface of the base plate (1), and a second fixing frame (204) is fixedly connected to the upper end of the outer walls on both sides of the support frame (201). A first fixing frame (202) is fitted on the front end of the outer wall of the dust suction pipe (203).
3. A double variable frequency screw doser as claimed in claim 1, wherein: Multiple short stirring rods (5011) are fixedly connected to the lower end of the outer wall of the first stirring column (507), multiple long stirring rods (508) are fixedly connected to the upper end of the outer wall of the first stirring column (507), and multiple stirring racks (509) are fixedly connected to the outer wall of the second stirring column (5010).
4. A double variable frequency screw doser as claimed in claim 1, wherein: The second gear (5013) meshes with the first gear (5012), the fifth gear (5016) meshes with the fourth gear (5015), and the fourth gear (5015) meshes with the third gear (5014).
5. A double variable frequency screw doser as claimed in claim 1, wherein: A fixed disk (506) is fixedly connected to the lower surface of the stirring motor (505). The first gear (5012) is rotatably connected to the fixed disk (506), and the fourth gear (5015) is rotatably connected to the fixed disk (506).
6. A double variable frequency screw doser as claimed in claim 1, wherein: A motor housing (4) is fixedly connected to the front end of the upper surface of the storage box (206). A conveying pipe (3) is provided on the outer wall of the front end of the motor housing (4). A conveying rod (8) is provided inside the conveying pipe (3). A storage box (2012) is provided inside the storage box (206). A switch door (207) is rotatably connected to one side of the outer wall of the storage box (206). A handle (208) is fixedly connected to the outer wall of the switch door (207) away from the storage box (206).
7. A dual-frequency variable screw feeder according to claim 6, characterized in that: A metering valve (7) is fixedly connected to the lower end of the outer wall of the conveying pipe (3), a discharge pipe (6) is fixedly connected to the lower surface of the metering valve (7), and a mixing tank (503) is fixedly connected to the upper end of the outer wall of the conveying pipe (3).
8. A double variable frequency screw doser as claimed in claim 2, wherein: The first fixing frame (202) is fixedly connected to the discharge pipe (6), and the dust suction pipe (203) is engaged with the first fixing frame (202) and the second fixing frame (204).