Accurate quantitative filling machine for water-soluble fertilizer production

By designing a mixing mechanism with auger blades and cross-shaped stirring blades, as well as a leak-proof mechanism with elastic rubber plugs, the problems of uneven mixing and leakage in water-soluble fertilizer filling machines have been solved, achieving efficient and precise filling results.

CN223764742UActive Publication Date: 2026-01-06ZHEJIANG FENGCHAN BIOTECHNOLOGY CO LTD
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Patent Information

Application Number
CN202520445591.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-14
Publication Date
2026-01-06
Estimated Expiration
2035-03-14

AI Technical Summary

Technical Problem

Existing water-soluble fertilizer filling machines struggle to handle uneven mixing of complex formulas during the mixing process and lack effective leak prevention measures, leading to material sedimentation, accumulation, and splashing, which affects product quality and production efficiency.

Method used

A precision quantitative filling machine was designed, which includes a mixing mechanism and a leak-proof mechanism. The mixing mechanism thoroughly cleans residual materials from the cylinder wall using auger blades and cross-shaped mixing blades, while the leak-proof mechanism adapts to different bottle openings with elastic rubber plugs to ensure filling accuracy.

Benefits of technology

It significantly improves the mixing uniformity and filling accuracy of water-soluble fertilizers, prevents material waste and environmental pollution, and ensures product quality and production efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model belongs to the technical field of water-soluble fertilizer production equipment, and particularly relates to an accurate quantitative filling machine for water-soluble fertilizer production, which comprises a conveying frame, a charging barrel is arranged on the conveying frame, a stirring mechanism is arranged in the charging barrel, and a filling mechanism and a leakage-proof mechanism are arranged below the charging barrel. According to the precise quantitative filling machine for water-soluble fertilizer production, in the stirring mechanism, auger blades are tightly attached to the wall and the bottom of the material barrel, residues are cleaned, materials are driven to be comprehensively stirred, cross-shaped stirring blades on an auxiliary stirring shaft forcedly turn over from different directions, water-soluble fertilizer of a complex formula is evenly mixed, and the product quality is improved. The leakage-proof mechanism adapts to different bottle opening sizes through a sliding block and a conical rubber blocking block which are connected through a spring in a cross-shaped sliding groove, good sealing is formed through tight attachment, splashing of the water-soluble fertilizer is prevented, material waste and environmental pollution are avoided, and efficient production and product quality are guaranteed.
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Description

Technical Field

[0001] This utility model relates to the technical field of water-soluble fertilizer production equipment, specifically a precision quantitative filling machine for water-soluble fertilizer production. Background Technology

[0002] In today's booming modern agriculture, water-soluble fertilizers have been widely used in agricultural production due to their significant advantages such as rapid dissolution, high absorption rate, and flexible formulation. As market demand for water-soluble fertilizers continues to rise and water-soluble fertilizer manufacturers continue to expand, the requirements for the performance of production equipment, especially filling machines, are becoming increasingly stringent.

[0003] Existing water-soluble fertilizer filling machines have revealed numerous problems in actual operation. Regarding the mixing stage, traditional mixing devices struggle to handle the complex composition and diverse formulations of water-soluble fertilizers. Due to significant differences in density, viscosity, and other physical properties among different formulations, and the fact that the properties of the same formulation can change at different temperatures, materials are prone to sedimentation and accumulation, making thorough and uniform mixing difficult. This not only affects the stability of product quality but may also lead to uneven distribution of active ingredients, reducing fertilizer efficacy. Traditional mixing blades cannot completely clean residual material from the cylinder walls and bottom, causing some material to remain for extended periods, further exacerbating the problem of uneven mixing.

[0004] Leakage prevention is also a prominent issue during the filling process. Existing filling machines lack effective leak-proof measures when dealing with bottles of different sizes. During filling, water-soluble fertilizer easily splashes out from the bottle opening, resulting in significant material waste, increased production costs, and serious pollution of the working environment. Furthermore, the splashed material may adhere to the equipment surface, breeding bacteria and affecting the equipment's hygiene, thus posing a potential threat to product quality. In addition, traditional filling machines struggle to adapt to different nozzle sizes, have poor sealing performance, and cannot ensure stable and accurate filling under various conditions, severely restricting the improvement of production efficiency and product quality. Therefore, there is an urgent need to improve the water-soluble fertilizer production precision quantitative filling machine to solve these problems. Utility Model Content

[0005] The purpose of this invention is to provide a precision quantitative filling machine for water-soluble fertilizer production, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a precision quantitative filling machine for water-soluble fertilizer production, comprising a conveyor frame, a support leg fixedly installed at the bottom of the conveyor frame, a conveyor belt inside the conveyor frame, the conveyor belt being driven by conveyor rollers, an mounting leg fixedly installed in the middle of the conveyor frame, an mounting plate fixedly installed on the mounting leg, a material cylinder fixedly installed on the mounting plate, an end cap fixedly installed on the top of the material cylinder, and a feed inlet on the end cap; the precision quantitative filling machine for water-soluble fertilizer production includes a stirring mechanism, a filling mechanism, and a leak-proof mechanism, the stirring mechanism including an end cap, a motor fixedly installed in the middle of the end cap, and a stirring shaft fixedly installed through the end cap on the output shaft of the motor.

[0007] Preferably, an auger blade is fixedly installed on the stirring shaft, the edge of the auger blade is in close contact with the inner wall of the material cylinder, and the end of the auger blade is in contact with the bottom of the material cylinder.

[0008] Preferably, a secondary stirring shaft is movably installed between the auger blades, and stirring blades are fixedly installed on the secondary stirring shaft. The stirring blades are cross-shaped stirring blades, which can contact the inner wall of the material cylinder when rotating, and are located between the auger blades.

[0009] Preferably, the inner wall of the top of the material cylinder is provided with internal teeth, and a gear is fixedly installed on the auxiliary stirring shaft, with the internal teeth meshing with the gear.

[0010] Preferably, a limiting block is movably installed at the upper end of the auxiliary stirring shaft, and a limiting groove is provided inside the end cover. The limiting groove is annular, and the limiting block is movably installed inside the limiting groove.

[0011] Preferably, the filling mechanism includes a mounting plate, on which a filter device is fixedly mounted. A liquid extraction pipe is fixedly mounted at the extraction port of the filter device, and the other end of the liquid extraction pipe is fixedly mounted at the bottom of the material cylinder. A conveying pipe is fixedly mounted at the outlet of the filter device, and the other end of the conveying pipe is fixedly connected to the extraction port of the infusion pump. A filling pipe is fixedly mounted at the outlet of the infusion pump, and a metering valve is fixedly mounted on the filling pipe. The end of the filling pipe is fixedly mounted on a lifting plate, and the lifting plate and the mounting plate are fixedly connected by two sets of electric telescopic rods.

[0012] Preferably, the leak-proof mechanism includes a lifting plate, which has four sets of sliding grooves in a cross shape. A fixed rod is fixedly installed in each sliding groove, and a slider is movably installed on the fixed rod. A spring is fixedly installed between the slider and the inner wall of the sliding groove. A rubber plug is fixedly installed at the lower end of the slider, and the end of the rubber plug is tapered. A filling head is provided in the middle of the lifting plate, and the filling head is connected to the filling pipe.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. This precision quantitative filling machine for water-soluble fertilizer production utilizes a unique mixing mechanism. The auger blades significantly enhance mixing efficiency. The edges of the auger blades are in close contact with the inner wall of the cylinder, and the ends contact the bottom of the cylinder, thoroughly cleaning residual material from the cylinder walls and bottom, preventing material accumulation and sedimentation, and ensuring complete mixing of all materials within the tank. Simultaneously, a secondary mixing shaft with cross-shaped mixing blades is movably installed between the auger blades. When the mixing blades rotate, they contact the inner wall of the cylinder, further strengthening the mixing process beyond that of the auger blades. This process agitates and mixes the material from different directions, greatly enhancing the uniformity of the mixture and better adapting to the complex mixing requirements of water-soluble fertilizer formulations, effectively improving product quality.

[0015] 2. This precision quantitative filling machine for water-soluble fertilizer production features a leak-proof mechanism. The slider and fixed rod within the chute work flexibly, and the spring's elasticity allows the rubber plug to adapt to different bottle opening sizes. The tapered end of the rubber plug extends better into the bottle, ensuring a tight seal. During filling, it effectively prevents water-soluble fertilizer from splashing from the bottle opening, avoiding material waste and environmental pollution. This significantly improves filling accuracy and cleanliness, while ensuring stability and leak-proof performance for bottles of different sizes, guaranteeing high production efficiency and product quality. Attached Figure Description

[0016] Figure 1 This is a three-dimensional schematic diagram of the present invention;

[0017] Figure 2 This is a schematic diagram of the installation structure of the stirring mechanism of this utility model;

[0018] Figure 3 This is a schematic diagram of the transmission structure of the stirring mechanism of this utility model;

[0019] Figure 4 This is a partial cross-sectional view of the stirring mechanism of this utility model;

[0020] Figure 5 This is a schematic diagram of the filling mechanism installation mechanism of this utility model;

[0021] Figure 6 This is a partial sectional view of the leak-proof mechanism of this utility model.

[0022] In the diagram: 1 Conveyor frame, 2 Support leg, 3 Conveyor belt, 4 Mounting leg, 5 Mounting plate, 6 Material cylinder, 7 End cap, 8 Inlet, 201 Motor, 202 Stirring shaft, 203 Screwdriver blade, 204 Auxiliary stirring shaft, 205 Stirring blade, 206 Internal gear, 207 Gear, 208 Limiting groove, 209 Limiting block, 301 Filter device, 302 Liquid extraction pipe, 303 Conveying pipe, 304 Liquid pump, 305 Filling pipe, 306 Metering valve, 307 Electric telescopic rod, 308 Lifting plate, 309 Slide groove, 310 Fixed rod, 311 Spring, 312 Slider, 313 Rubber plug, 314 Filling head. Detailed Implementation

[0023] 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.

[0024] Example 1:

[0025] Based on existing technology, current water-soluble fertilizer filling machines have revealed numerous problems in actual operation. Regarding the mixing stage, traditional mixing devices struggle to handle the complex composition and diverse formulations of water-soluble fertilizers. Due to significant differences in density, viscosity, and other physical properties among different formulations, and the fact that the properties of the same formulation can change at different temperatures, materials are prone to sedimentation and accumulation, making thorough and uniform mixing difficult. This not only affects the stability of product quality but may also lead to uneven distribution of active ingredients, reducing fertilizer efficacy. Furthermore, traditional mixing blades cannot completely clean residual material from the cylinder walls and bottom, causing some material to remain for extended periods, further exacerbating the problem of uneven mixing. Therefore, this device is equipped with a mixing mechanism. Please refer to [link / reference]. Figures 1-4 This utility model provides a technical solution: a precision quantitative filling machine for water-soluble fertilizer production, including a conveyor frame 1, a support leg 2 fixedly installed at the bottom of the conveyor frame 1, a conveyor belt 3 inside the conveyor frame 1, the conveyor belt 3 being driven by conveyor rollers, an installation leg 4 fixedly installed in the middle of the conveyor frame 1, an installation plate 5 fixedly installed on the installation leg 4, a material cylinder 6 fixedly installed on the installation plate 5, an end cap 7 fixedly installed on the top of the material cylinder 6, and a feed inlet 8 provided on the end cap 7; the precision quantitative filling machine for water-soluble fertilizer production includes a stirring mechanism, a filling mechanism, and a leak-proof mechanism, the stirring mechanism includes an end cap 7, a motor 201 fixedly installed in the middle of the end cap 7, and a stirring shaft 202 fixedly installed through the end cap 7.

[0026] A screw conveyor blade 203 is fixedly installed on the stirring shaft 202. The edge of the screw conveyor blade 203 is in close contact with the inner wall of the material cylinder 6, and the end of the screw conveyor blade 203 is in contact with the bottom of the material cylinder 6.

[0027] A secondary stirring shaft 204 is movably installed between the auger blades 203. An stirring blade 205 is fixedly installed on the secondary stirring shaft 204. The stirring blade 205 is a cross-shaped stirring blade. When rotating, the stirring blade 205 can contact the inner wall of the material cylinder 6. The stirring blade 205 is located between the auger blades 203.

[0028] The inner wall of the top of the material cylinder 6 is provided with internal teeth 206, and a gear 207 is fixedly installed on the auxiliary stirring shaft 204. The internal teeth 206 mesh with the gear 207.

[0029] A limiting block 209 is movably installed at the upper end of the auxiliary stirring shaft 204, and a limiting groove 208 is provided inside the end cover 7. The limiting groove 208 is annular, and the limiting block 209 is movably installed inside the limiting groove 208.

[0030] The water-soluble fertilizer to be filled is fed into the feeding cylinder 6 through the inlet 8. The motor 201 is started to drive the stirring shaft 202 to rotate, which in turn drives the auger blades 203 to rotate, stirring the water-soluble fertilizer in the feeding cylinder 6 and accelerating its dissolution. At the same time, the auger blades 203 can clean the inner wall of the feeding cylinder 6, preventing some water-soluble fertilizer from adhering to the inner wall of the feeding cylinder 6. During the rotation of the auger blades 203, the auxiliary stirring shaft 204 rotates around the stirring shaft 202. Since the gear 207 at the end of the auxiliary stirring shaft 204 meshes with the internal teeth 206 on the inner wall of the feeding cylinder 6, the auxiliary stirring shaft 204 rotates on its own axis during the rotation around the stirring shaft 202, which in turn drives the stirring blades 205 to rotate, improving the efficiency of the stirring blades. At the same time, the edge of the stirring blades 205 contacts the inner wall of the feeding cylinder 6, further improving the cleaning effect.

[0031] Example 2:

[0032] Building upon Example 1, leakage prevention remains a significant issue during the filling process. Existing filling machines lack effective leakage prevention measures when dealing with bottles of different sizes. During filling, water-soluble fertilizer easily splashes from the bottle opening, resulting in substantial material waste, increased production costs, and severe pollution of the working environment. Furthermore, the splashed material may adhere to the equipment surface, breeding bacteria and affecting the equipment's hygiene, thus posing a potential threat to product quality. In addition, traditional filling machines struggle to adapt to different nozzle sizes, exhibiting poor sealing and failing to ensure stable and accurate filling under various conditions, severely hindering improvements in production efficiency and product quality. Therefore, this device incorporates both a filling mechanism and a leakage prevention mechanism. Please refer to [link / reference]. Figures 1-6This utility model provides a technical solution: a precision quantitative filling machine for water-soluble fertilizer production. The filling mechanism includes an installation plate 5, on which a filter device 301 is fixedly installed. A liquid extraction pipe 302 is fixedly installed at the extraction port of the filter device 301. The other end of the liquid extraction pipe 302 is fixedly installed at the bottom of the material cylinder 6. A conveying pipe 303 is fixedly installed at the discharge port of the filter device 301. The other end of the conveying pipe 303 is fixedly connected to the extraction port of the liquid pump 304. A filling pipe 305 is fixedly installed at the discharge port of the liquid pump 304. A metering valve 306 is fixedly installed on the filling pipe 305. The end of the filling pipe 305 is fixedly installed on a lifting plate 308. The lifting plate 308 and the installation plate 5 are fixedly connected by two sets of electric telescopic rods 307.

[0033] The leak-proof mechanism includes a lifting plate 308, which has four sets of sliding grooves 309. The sliding grooves 309 are cross-shaped. A fixing rod 310 is fixedly installed in the sliding groove 309. A slider 312 is movably installed on the fixing rod 310. A spring 311 is fixedly installed between the slider 312 and the inner wall of the sliding groove 309. A rubber plug 313 is fixedly installed at the lower end of the slider 312. The end of the rubber plug 313 is conical. A filling head 314 is provided in the middle of the lifting plate 308. The filling head 314 is connected to the filling pipe 305.

[0034] The infusion pump 304 is started, and the water-soluble fertilizer is transported to the filling pipe 305 through the extraction pipe 302, the filter device 301 and the delivery pipe 303. The metering valve 306 designed on the filling pipe 305 controls the start and stop of the infusion pump 304 quantitatively. When the filling bottle moves to the bottom of the filling head 314 along with the conveyor belt 3, the electric telescopic rod 307 is started to control the lifting plate 308 to raise and lower, so that the rubber plug 313 extends into the filling bottle. The rubber plug 313 is squeezed inward under the restriction of the bottle mouth to a certain extent to seal it and prevent the water-soluble fertilizer from splashing out of the bottle mouth during the filling process.

[0035] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

Claims

1. A precision quantitative filling machine for water-soluble fertilizer production, comprising a conveyor frame (1), characterized in that: The bottom of the conveying frame (1) is fixedly provided with supporting legs (2), the conveying frame (1) is internally provided with a conveying belt (3), the conveying belt (3) is driven by conveying rollers, the middle of the conveying frame (1) is fixedly provided with mounting legs (4), the mounting legs (4) are fixedly provided with mounting plates (5), the mounting plates (5) are fixedly provided with material barrels (6), the top of the material barrel (6) is fixedly provided with an end cover (7), and the end cover (7) is provided with a feeding port (8). The precision quantitative filling machine for water-soluble fertilizer production includes a stirring mechanism, a filling mechanism and a leakage prevention mechanism, the stirring mechanism includes an end cover (7), a motor (201) is fixedly installed in the middle of the end cover (7), and the output shaft of the motor (201) is fixedly provided with a stirring shaft (202) penetrating through the end cover (7).

2. The precise quantitative filling machine for water-soluble fertilizer production according to claim 1, characterized in that: A auger blade (203) is fixedly installed on the stirring shaft (202), the edge of the auger blade (203) is in close contact with the inner wall of the material barrel (6), and the tail end of the auger blade (203) is in contact with the bottom of the material barrel (6).

3. The precise quantitative filling machine for water-soluble fertilizer production according to claim 2, characterized in that: A sub-stirring shaft (204) is movably installed between the auger blades (203), a stirring blade (205) is fixedly installed on the sub-stirring shaft (204), the stirring blade (205) is a cross-shaped stirring blade, the stirring blade (205) can be in contact with the inner wall of the material barrel (6) when rotating, and the stirring blade (205) is located between the auger blades (203).

4. The precise quantitative filling machine for water-soluble fertilizer production according to claim 3, characterized in that: An inner gear (206) is arranged on the top inner wall of the material barrel (6), a gear (207) is fixedly installed on the sub-stirring shaft (204), and the inner gear (206) is meshed with the gear (207).

5. The precise quantitative filling machine for water-soluble fertilizer production according to claim 4, characterized in that: A limiting block (209) is movably installed on the upper end of the sub-stirring shaft (204), a limiting groove (208) is arranged in the end cover (7), the limiting groove (208) is in the form of a circular ring, and the limiting block (209) is movably installed in the limiting groove (208).

6. The precise quantitative filling machine for water-soluble fertilizer production according to claim 5, characterized in that: The filling mechanism includes a mounting plate (5), a filtering device (301) is fixedly installed on the mounting plate (5), a liquid suction pipe (302) is fixedly installed on the liquid suction port of the filtering device (301), the other end of the liquid suction pipe (302) is fixedly installed at the bottom of the material barrel (6), a conveying pipe (303) is fixedly installed on the material outlet of the filtering device (301), the other end of the conveying pipe (303) is fixedly connected with the liquid suction port of a liquid infusion pump (304), a material filling pipe (305) is fixedly installed on the liquid outlet of the liquid infusion pump (304), a metering valve (306) is fixedly installed on the material filling pipe (305), the tail end of the material filling pipe (305) is fixedly installed on a lifting plate (308), and the lifting plate (308) and the mounting plate (5) are fixedly connected through two groups of electric telescopic rods (307).

7. The precise quantitative filling machine for water-soluble fertilizer production according to claim 6, characterized in that: The leakage prevention mechanism comprises a lifting plate (308), four groups of sliding grooves (309) are arranged in the lifting plate (308), the sliding grooves (309) are cross-shaped, a fixing rod (310) is fixedly installed in the sliding groove (309), a sliding block (312) is movably installed on the fixing rod (310), springs (311) are fixedly installed between the sliding block (312) and the inner walls of the sliding grooves (309), rubber plugs (313) are fixedly installed at the lower ends of the sliding blocks (312), the rubber plugs (313) are conical at the tail ends, a filling head (314) is arranged at the middle position of the lifting plate (308), and the filling head (314) is connected with a filling pipe (305).