Automatic metering and feeding system for special cleaning agent proportioning

Abstract

The utility model relates to the technical field of detergent production equipment, and disclose a kind of special detergent proportioning automatic metering feeding system, raw material storage unit is used to store the raw material required for producing various special detergents, metering unit is connected with raw material storage unit, control system is electrically connected with metering unit, mixing unit is connected with the discharge port of metering unit, for the mixed raw material of metering is carried out, conveying unit is used to convey the raw material after mixing to subsequent production process, including conveying pipe and conveying pump.Control system includes PLC controller and man-machine interface, PLC controller is used to receive the signal of liquid level sensor and electronic scale, and according to the preset proportioning parameter control metering pump operation;Through the double calibration of metering pump plus electronic scale and stirring anti-deposition design, ensure that multiple-component raw materials are uniformly mixed, product pass rate is improved, annular support integration structure is combined with intelligent control system, labor cost is reduced.

Description

Technical Field

[0001] This utility model belongs to the technical field of detergent production equipment, specifically relating to an automatic metering and feeding system for special detergent proportioning. Background Technology

[0002] In the industrial production of specialty detergents, the precise proportioning of raw materials is a core factor determining product performance. With the increasing demands for cleaning power and stability in industries such as electronics and metal processing, precise metering of multi-component raw materials and automated feeding systems have become mainstream industry requirements.

[0003] Traditional detergent production relies heavily on manual weighing and feeding. Manual batching depends on operator experience, resulting in high error rates and a lack of real-time calibration. While some automated feeding equipment has emerged in recent years, it still suffers from insufficient metering accuracy, poor equipment stability, and inconvenient human-machine interaction when dealing with high-viscosity additives, multiple component ratios, and continuous production scenarios, failing to meet the high-quality production demands of specialty detergents. Some single-meter pumps or electronic scales lack dual calibration mechanisms, making them prone to mixing deviations due to changes in raw material viscosity or residues in the delivery pipeline, directly affecting the consistency of detergent cleaning effects. Most equipment relies on manual parameter setting, making it impossible to monitor raw material reserves and equipment status in real time.

[0004] In view of this, we propose an automatic metering and dispensing system for special detergents to solve the above problems. Utility Model Content

[0005] The present invention aims to solve the following problems in the prior art: high error rate of manual batching of special detergents, lack of calibration mechanism for single metering equipment, easy sedimentation and stratification of high-viscosity raw materials leading to ratio deviation, low degree of automation and inability to monitor in real time.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an automatic metering and dispensing system for special detergents, comprising:

[0007] The raw material storage unit is used to store various raw materials required for the production of special detergents. It includes multiple raw material storage tanks, each of which is equipped with a liquid level sensor for real-time monitoring of the raw material storage volume.

[0008] The metering unit, connected to the raw material storage unit, includes multiple metering pumps, metering hoppers, feeding hoppers, and electronic scales. Each raw material storage tank is connected to the corresponding metering pump through a pipe. The metering pump is used to transport the raw material to the metering hopper, and the metering hopper feeds the raw material into the feeding hopper above the electronic scale. The electronic scale is used to accurately weigh the added raw material.

[0009] The control system, electrically connected to the metering unit, includes a PLC controller and a human-machine interface. The PLC controller receives signals from the level sensor and the electronic scale, and controls the operation of the metering pump according to the preset mixing ratio parameters. The human-machine interface is used by operators to input the mixing ratio parameters and view the system operating status.

[0010] The mixing unit is connected to the outlet of the metering unit and is used to mix the metered raw materials. The mixing unit includes a mixing tank, which is equipped with a stirring device. The stirring device is driven by a stirring motor A and can fully mix the raw materials.

[0011] A conveying unit, used to transport the mixed raw materials to subsequent production processes, includes conveying pipes and conveying pumps.

[0012] Preferably, a bracket is fixedly provided on the outer side of the mixing tank, and the bottom of the bracket is provided with support feet.

[0013] Preferably, the support includes an annular bottom plate, an annular middle plate, and an annular top plate fixed to the outer side of the mixing tank, and the annular bottom plate, annular middle plate, and annular top plate are fixedly connected by support columns arranged in annularly at equal intervals.

[0014] Preferably, the annular middle plate is fitted onto the outer side of the feeding hopper, and several electronic scales are arranged in a ring at equal intervals on the top of the annular middle plate. The electronic scales are connected to the annular middle plate and the feeding hopper, and the material in the feeding hopper is weighed by the electronic scales on the annular middle plate.

[0015] Preferably, the discharge port at the bottom of the metering hopper extends into the feeding hopper, and the top of the metering hopper is provided with a mounting base. The mounting base is equipped with a stirring motor B, the output shaft of the stirring motor B is connected to the stirring shaft inside the metering hopper, the metering pump is installed on the mounting base, and the inlet of the metering pump is connected to the pipeline. The outlet of the metering pump extends into the feeding hopper, and one side of the metering hopper is provided with a fixed mounting base and a connecting base fixed to the top of the annular top plate.

[0016] Preferably, a first support rod and a second support rod are symmetrically arranged on both sides of the stirring shaft. The first support rod is fixedly connected to the stirring blade A, which is attached to the inner wall of the measuring hopper, through a connecting plate. The second support rod is fixedly connected to the stirring blade B, which is attached to the inner wall of the measuring hopper. The stirring blade A and the stirring blade B are not at the same height.

[0017] Both stirring blade A and stirring blade B have several through holes evenly distributed on them.

[0018] Preferably, the discharge port at the bottom of the feeding hopper is movably inserted into the mixing tank.

[0019] Preferably, the conveying pipe is connected to the discharge port at the bottom of the mixing tank.

[0020] Compared with the prior art, the technical effects and advantages of this utility model are:

[0021] This special detergent mixing and automatic metering system utilizes a dual metering mechanism of "metering pump + electronic scale" to achieve highly accurate dispensing, reducing errors compared to traditional manual dispensing and ensuring precise proportions of each component in the special detergent. A liquid level sensor monitors the original storage tank's level in real time; when the level falls below a threshold, the PLC automatically triggers an alarm to prevent production interruptions due to material shortages. Combined with real-time inventory data management, this improves the accuracy of replenishment plans, ensuring continuous detergent production. The asymmetrical stirring blades A and B within the metering hopper, with their through-hole design, enhance the flowability of high-viscosity raw materials, preventing sedimentation and stratification, and further ensuring uniform material composition delivered to the mixing tank.

[0022] The multi-layer support structure of the ring bracket (bottom plate, middle plate, top plate) evenly distributes the weight of the mixing tank through the support columns. The insertion connection design of the metering hopper and the feeding hopper shortens the material conveying path. The bottom outlet of the mixing tank is directly connected to the conveying pipe, reducing the risk of contamination in intermediate links and improving the material transmission efficiency.

[0023] The human-machine interface supports storing formulas and switching between different detergent products. The PLC controller collects data such as liquid level and weight in real time, and has a high accuracy rate in providing early warnings of faults such as metering pump malfunctions. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the structure of this utility model;

[0025] Figure 2 This is the front view of the present invention;

[0026] Figure 3 This is a schematic diagram of the structure of the metering hopper, feeding hopper, and mixing tank of this utility model;

[0027] Figure 4 This is a schematic diagram of the structure of the measuring hopper of this utility model;

[0028] Figure 5 This is a schematic diagram of the internal structure of the measuring hopper of this utility model.

[0029] In the diagram: 1. Storage tank; 2. Measuring hopper; 3. Measuring pump; 4. Feeding hopper; 5. Electronic scale; 6. Pipeline; 7. Mixing tank; 8. Agitator motor A; 9. Conveying pipe; 10. Support; 11. Support leg; 12. Annular bottom plate; 13. Annular middle plate; 14. Annular top plate; 15. Support column; 16. Mounting seat; 17. Agitator motor B; 18. Agitator shaft; 19. Connecting seat; 20. First support rod; 21. Second support rod; 22. Connecting plate; 23. Agitator blade A; 24. Agitator blade B; 25. Through hole. Detailed Implementation

[0030] 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.

[0031] The following combination Figures 1 to 5 This application will be described in further detail.

[0032] This application discloses an automatic metering and feeding system for special detergents, including a raw material storage unit, a metering unit, a control system, a mixing unit, and a conveying unit. The raw material storage unit stores various raw materials required for producing the special detergents. The metering unit is connected to the raw material storage unit, and the control system is electrically connected to the metering unit. The mixing unit is connected to the outlet of the metering unit and is used to mix the metered raw materials. The conveying unit, including a conveying pipe 9 and a conveying pump, is used to convey the mixed raw materials to subsequent production processes. The control system includes a PLC controller and a human-machine interface. The PLC controller receives signals from the level sensor and the electronic scale 5 and controls the operation of the metering pump 3 according to preset mixing parameters. The human-machine interface allows operators to input mixing parameters and view the system's operating status.

[0033] The liquid level sensor monitors the storage level in the original storage tank 1 in real time. When the liquid level falls below the set value, the PLC controller can trigger an alarm signal (such as an audible and visual alarm or system prompt) to prevent production interruptions due to raw material shortages and ensure continuous production. Real-time data allows operators to monitor raw material consumption, plan replenishment in advance, reduce manual inspection costs, and improve inventory management efficiency.

[0034] The raw material storage unit includes multiple raw material storage tanks 1, each raw material storage tank 1 is equipped with a liquid level sensor for real-time monitoring of raw material storage; a bracket 10 is fixedly installed on the outer side of the mixing tank 7, and a support foot 11 is provided at the bottom of the bracket 10. The bracket 10 includes an annular bottom plate 12, an annular middle plate 13 and an annular top plate 14 fixed on the outer side of the mixing tank 7. The annular bottom plate 12, annular middle plate 13 and annular top plate 14 are fixedly connected by support columns 15 arranged in annularly at equal intervals.

[0035] The metering unit includes multiple metering pumps 3, metering hoppers 2, feeding hoppers 4 and electronic scales 5. Each raw material storage tank 1 is connected to the corresponding metering pump 3 through a pipe 6. The metering pump 3 is used to transport the raw material to the metering hopper 2. The metering hopper 2 sends the raw material into the feeding hopper 4 above the electronic scale 5. The electronic scale 5 is used to accurately weigh the added raw material.

[0036] The annular bottom plate 12, middle plate, and top plate are fixedly connected by support columns 15, forming a multi-layered annular support structure. This structure evenly distributes the weight of the mixing tank 7, preventing deformation of the support frame 10 due to long-term use or stirring vibration, thus ensuring equipment safety. The layered design of the support frame 10 allows for the rational layout of equipment components (such as the weighing hopper 2 and the electronic scale 5). The annular middle plate 13 is fitted onto the outside of the feeding hopper 4, facilitating the installation and maintenance of the electronic scale 5 while providing sufficient space to avoid interference between components. The coordinated design of the annular middle plate 13 and the feeding hopper 4 ensures precise positioning of the feeding hopper 4, guaranteeing the stability of the electronic scale 5 during weighing and preventing measurement errors caused by shaking.

[0037] An annular plate 13 is fitted onto the outer side of the feeding hopper 4. Several electronic scales 5 are arranged in a ring at equal intervals on the top of the annular plate 13. The electronic scales 5 are connected to the annular plate 13 and the feeding hopper 4. The material in the feeding hopper 4 is weighed by the electronic scales 5 on the annular plate 13.

[0038] The discharge port at the bottom of the metering hopper 2 extends into the feeding hopper 4. The top of the metering hopper 2 is provided with a mounting base 16, and a stirring motor B17 is provided on the mounting base 16. The output shaft of the stirring motor B17 is connected to the stirring shaft 18 inside the metering hopper 2. The metering pump 3 is installed on the mounting base 16, and the inlet of the metering pump 3 is connected to the pipe 6. The discharge port of the metering pump 3 extends into the feeding hopper 4. A connecting seat 19 is provided on one side of the metering hopper 2, which is fixedly connected to the mounting base 16 and fixed to the top of the annular top plate 14.

[0039] The metering pump 3 and the electronic scale 5 work together for dual metering to ensure accuracy. The metering pump 3 precisely controls the flow rate of raw materials and is suitable for quantitative conveying of liquid materials. The metering pump 3 adopts a high-precision plunger pump. The electronic scale 5 weighs the raw materials in the feeding hopper 4 in real time, forming a dual calibration of "pump delivery + scale weighing" to ensure the accuracy of the proportioning and avoid the accumulation of errors from a single metering method.

[0040] Multiple metering pumps 3 correspond one-to-one with the original storage tank 1, enabling simultaneous independent metering of various raw materials to meet the needs of multi-component dispensing of special detergents. The discharge port of the metering hopper 2 extends into the feeding hopper 4, which can reduce the leakage or evaporation of raw materials during the transportation process. At the same time, the smooth inner wall design of the metering hopper 2 can reduce material residue and is suitable for switching production of different raw materials.

[0041] The stirring shaft 18 is symmetrically provided with a first support rod 20 and a second support rod 21 on both sides. The first support rod 20 is fixedly connected to the stirring blade A23 that is attached to the inner wall of the metering hopper 2 through the connecting plate 22. The second support rod 21 is fixedly connected to the stirring blade B24 that is attached to the inner wall of the metering hopper 2. The stirring blade A23 and the stirring blade B24 are not at the same height.

[0042] Several through holes 25 are evenly distributed on the stirring blades A23 and B24.

[0043] The stirring motor B drives the stirring shaft 18 to rotate, which in turn drives the stirring blades A and B (at different heights) to stir the raw materials in the metering hopper 2. This prevents liquid raw materials (such as high-viscosity additives) from settling or separating during the metering process, ensuring that the material delivered to the feeding hopper 4 has a uniform composition and improving the accuracy of the proportioning. The through holes 25 on the blades reduce the resistance during stirring and promote material flow, which is especially suitable for viscous liquids and prevents the metering pump 3 from becoming clogged or experiencing poor delivery due to material agglomeration. The asymmetrical blade design (at different heights) can generate a complex flow field, enhance the stirring effect, adapt to the mixing requirements of various raw materials, and ensure that the material state is consistent before metering.

[0044] The mixing unit includes a mixing tank 7, which is equipped with a stirring device driven by a stirring motor A8, capable of thoroughly mixing the raw materials. The discharge port at the bottom of the feeding hopper 4 is movably inserted into the mixing tank 7. A conveying pipe 9 is connected to the discharge port at the bottom of the mixing tank 7.

[0045] A stirring motor A drives a stirring device (such as a paddle or spiral mixer) to rapidly mix the metered raw materials. Combined with the design of the feeding hopper 4 directly inserted into the mixing tank 7, this reduces splashing caused by material drop, ensuring rapid and uniform mixing of multi-component raw materials and preventing insufficient mixing from affecting the detergent's performance (such as cleaning power and stability). The discharge port of the feeding hopper 4 is inserted into the mixing tank 7 to prevent external impurities from entering, ensuring product purity. The discharge port at the bottom of the mixing tank 7 is connected to the conveying pipe 9, allowing the mixed material to be directly conveyed to subsequent processes (such as filtration and filling) via a conveying pump. This streamlined process reduces material residue and contamination risks in intermediate stages.

[0046] The control system includes a PLC controller and a human-machine interface. The PLC controller is used to receive signals from the liquid level sensor and the electronic scale 5, and to control the operation of the metering pump 3 according to the preset mixing ratio parameters. The human-machine interface is used by the operator to input the mixing ratio parameters and view the system operating status.

[0047] The PLC controller receives real-time data from the liquid level sensor and the electronic scale 5, and automatically adjusts the start-up, shutdown and flow rate of the metering pump 3 according to the preset mixing parameters to achieve full-process automation and reduce human intervention errors.

[0048] The human-machine interface allows operators to intuitively input mixing parameters and view real-time data (such as raw material weight, liquid level, mixing time, etc.). It supports formula storage and retrieval, adapting to the production needs of various detergent products. The system can monitor the equipment operating status in real time (such as abnormal metering pump 3 or malfunctioning electronic scale 5) and issue alarms through the human-machine interface, facilitating rapid troubleshooting. It also features overload protection, emergency stop, and other safety functions to reduce production risks.

[0049] This special detergent mixing and automatic metering feeding system achieves fully automated control through modular design. First, multiple storage tanks in the raw material storage unit hold various liquid raw materials, with level sensors monitoring the storage volume in real time and feeding back to the PLC controller. When production starts, the controller activates the corresponding metering pump 3 according to preset mixing parameters, transporting the raw materials from the storage tanks to the metering hopper 2. Inside the metering hopper 2, stirring blades A23 and B24 rotate under motor drive to prevent high-viscosity raw materials from settling and stratifying, ensuring uniform composition. An electronic scale 5 simultaneously weighs the material in the feeding hopper 4, forming a dual calibration of "pump delivery + scale weighing" to achieve high-precision mixing. After metering, the material falls directly into the mixing tank 7 through the feeding hopper 4, where it is thoroughly mixed by the stirring device and then pumped to subsequent processes. Throughout the process, the PLC controller continuously receives sensor data and dynamically adjusts equipment operating parameters to achieve closed-loop control.

[0050] This system significantly improves production efficiency and quality stability through structural optimization. The annular layered design (bottom plate, middle plate, and top plate) of the support frame 10 not only provides stable support for the mixing tank 7 but also provides a precise installation platform for the metering unit, preventing equipment shaking from affecting weighing accuracy. The insert-type connection between the metering hopper 2 and the feeding hopper 4 reduces material dripping and evaporation, and the smooth inner wall design reduces residue, making it suitable for multi-product switching production. The mixing tank 7 adopts a bottom discharge and direct connection to the conveying pipe 9, shortening the material transmission path and reducing the risk of contamination.

[0051] The control system is the core advantage of the entire system. The PLC controller, combined with a human-machine interface, enables digital management of formula parameters and real-time monitoring of equipment status. Operators can preset formulas and view dynamic data (such as liquid level, weight, and stirring time) through the interface. The system automatically records production batch information for traceability. When the liquid level falls below the threshold or equipment malfunctions, the audible and visual alarm system is triggered immediately to prevent material shortages or escalation of the fault. Furthermore, the system supports overload protection, emergency stop, and other safety mechanisms. Combined with dual metering calibration and anti-sedimentation stirring design, it comprehensively ensures product quality consistency and production process safety, reducing labor costs and the defect rate.

[0052] 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. An automatic metering and dispensing system for a special detergent, characterized in that, include: The raw material storage unit is used to store the raw materials required for the production of various special detergents, including multiple raw material storage tanks (1), each raw material storage tank (1) is equipped with a liquid level sensor for real-time monitoring of the raw material storage volume; The metering unit, connected to the raw material storage unit, includes multiple metering pumps (3), metering hoppers (2), feeding hoppers (4) and electronic scales (5). Each raw material storage tank (1) is connected to the corresponding metering pump (3) through a pipe (6). The metering pump (3) is used to transport the raw material to the metering hopper (2). The metering hopper (2) sends the raw material into the feeding hopper (4) above the electronic scale (5). The electronic scale (5) is used to accurately weigh the added raw material. The control system is electrically connected to the metering unit and includes a PLC controller and a human-machine interface. The PLC controller is used to receive signals from the liquid level sensor and the electronic scale (5) and control the operation of the metering pump (3) according to the preset mixing ratio parameters. The human-machine interface is used by the operator to input the mixing ratio parameters and view the system operating status. The mixing unit is connected to the outlet of the metering unit and is used to mix the metered raw materials. The mixing unit includes a mixing tank (7) and a stirring device is installed inside the mixing tank (7). The stirring device is driven by a stirring motor A (8) and can fully mix the raw materials. A conveying unit, used to transport the mixed raw materials to subsequent production processes, includes a conveying pipe (9) and a conveying pump.

2. The automatic metering and dispensing system for special detergents according to claim 1, characterized in that: A bracket (10) is fixedly provided on the outer side of the mixing tank (7), and a support foot (11) is provided at the bottom of the bracket (10).

3. The automatic metering and dispensing system for special detergents according to claim 2, characterized in that: The support (10) includes an annular bottom plate (12), an annular middle plate (13) and an annular top plate (14) fixed on the outer side of the mixing tank (7). The annular bottom plate (12), annular middle plate (13) and annular top plate (14) are fixedly connected by support columns (15) arranged in annular at equal intervals.

4. The automatic metering and dispensing system for special detergents according to claim 3, characterized in that: An annular plate (13) is fitted onto the outer side of the feeding hopper (4). Several electronic scales (5) are arranged in a ring at equal intervals on the top of the annular plate (13). The electronic scales (5) are connected to the annular plate (13) and the feeding hopper (4). The material in the feeding hopper (4) is weighed by the electronic scales (5) on the annular plate (13).

5. The automatic metering and dispensing system for special detergents according to claim 3, characterized in that: The discharge port at the bottom of the metering hopper (2) extends into the feeding hopper (4). The top of the metering hopper (2) is provided with a mounting base (16). The mounting base (16) is provided with a stirring motor B (17). The output shaft of the stirring motor B (17) is connected to the stirring shaft (18) inside the metering hopper (2). The metering pump (3) is installed on the mounting base (16), and the inlet of the metering pump (3) is connected to the pipe (6). The discharge port of the metering pump (3) extends into the feeding hopper (4). One side of the metering hopper (2) is provided with a connecting seat (19) that is fixedly connected to the mounting base (16) and fixed to the top of the annular top plate (14).

6. The automatic metering and dispensing system for a special detergent according to claim 5, characterized in that: The stirring shaft (18) is symmetrically provided with a first support rod (20) and a second support rod (21) on both sides. The first support rod (20) is fixedly connected to the stirring blade A (23) that is attached to the inner wall of the metering hopper (2) through the connecting plate (22). The second support rod (21) is fixedly connected to the stirring blade B (24) that is attached to the inner wall of the metering hopper (2). The stirring blade A (23) and the stirring blade B (24) are not at the same height. Several through holes (25) are evenly distributed on stirring blade A (23) and stirring blade B (24).

7. The automatic metering and dispensing system for special detergents according to claim 1, characterized in that: The discharge port at the bottom of the feeding hopper (4) is inserted into the mixing tank (7).

8. The automatic metering and dispensing system for special detergents according to claim 1, characterized in that: The conveying pipe (9) is connected to the discharge port at the bottom of the mixing tank (7).

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