Galvanizing passivator dispenser capable of adjusting dispensing amount
By combining an electromagnetic flowmeter and a PLC controller, precise and automatic dosing of galvanizing passivating agent is achieved, solving the problem of inaccurate dosing of galvanizing passivating agent in existing devices and improving the stability and safety of galvanized product quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-07
- Publication Date
- 2026-04-03
AI Technical Summary
The existing zinc plating passivating agent dispensing devices lack an automatic quantitative structure, leading to inaccurate manual or mechanical control and affecting the consistency of zinc plating product quality.
By using an electromagnetic flow meter and PLC controller in conjunction with a liquid pump, liquid level sensor and check valve, the precise measurement and automated control of the zinc plating passivating agent can be achieved, ensuring the consistency of the amount added each time.
It enables precise adjustment of the zinc plating passivating agent, improves the stability of zinc plating product quality, reduces human error, prevents backflow, and ensures a smooth and safe application process.
Smart Images

Figure CN224077507U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of zinc plating passivating agent dispensing technology, and in particular to a zinc plating passivating agent dispenser with adjustable dispensing amount. Background Technology
[0002] In the galvanizing production industry, zinc passivation is a key process step to improve the corrosion resistance and decorative properties of the zinc coating. During the zinc passivation process, the accurate dosage of the zinc passivating agent has a decisive impact on the quality of the final galvanized product.
[0003] To address the aforementioned issues, existing patents have provided solutions. However, existing galvanizing passivation agent dispensers lack a structure for automatically and quantitatively dispensing the galvanizing passivation agent. As a result, traditional dispensing devices often employ relatively simple manual control or crude mechanical control methods. When manually controlled, due to individual differences among operators and fatigue caused by long hours of work, it is difficult to ensure that the amount of galvanizing passivation agent dispensed each time is completely accurate and consistent, resulting in inconsistent quality of galvanized products.
[0004] To address this, an adjustable zinc passivating agent dispenser is proposed. Utility Model Content
[0005] The purpose of this invention is to provide an adjustable galvanizing passivating agent dispenser, which solves the problem that existing galvanizing passivating agent dispensers lack an automatic quantitative dispensing structure. This leads to traditional dispensing devices often using simple manual control or crude mechanical control methods. When manually controlled, due to individual differences in operators and fatigue from long hours of work, it is difficult to ensure that the amount of galvanizing passivating agent dispensed each time is completely accurate and consistent, resulting in inconsistent quality of galvanized products.
[0006] To achieve the above objectives, this utility model provides the following technical solution: an adjustable dosage zinc passivating agent dispenser, comprising a support shell, a storage mechanism fixedly connected to the inner side of the support shell, and a metering mechanism fixedly connected to the top of the storage mechanism;
[0007] The metering mechanism includes a pump, a connecting hose, an outlet pipe, an electromagnetic flowmeter, a PLC controller, a level sensor, and a check valve. The pump is fixedly connected to the top of the support housing. The connecting hose is fixedly connected to the right side of the pump. The outlet pipe is fixedly connected to the left side of the pump. The bottom of the outlet pipe passes through the support housing and is fixedly connected to the top of the electromagnetic flowmeter. The electromagnetic flowmeter is installed on the top of the storage mechanism. The PLC controller is installed on the front side of the support housing. The level sensor is installed on the rear side of the top of the storage mechanism. The detection end of the level sensor passes through and extends to the inside of the storage mechanism. The check valve is installed at the bottom of the storage mechanism.
[0008] Preferably, the storage mechanism includes a connecting frame, a storage tank, an inlet pipe, a drain pipe, and a discharge pipe, with the connecting frame fixedly connected to the inner side of the support shell.
[0009] Preferably, the storage tank is fixedly connected to the inner side of the connecting frame, the detection end of the liquid level sensor penetrates and extends to the inner side of the storage tank, the inlet pipe is fixedly connected to the top of the storage tank, and the top of the inlet pipe penetrates the support shell and is fixedly connected to the bottom of the electromagnetic flow meter.
[0010] Preferably, the drain pipe is fixedly connected to the bottom of the storage tank, the one-way valve is installed at the bottom of the drain pipe, the discharge pipe is fixedly connected to the bottom of the one-way valve, and the bottom of the discharge pipe extends through and to the outside of the support shell.
[0011] Preferably, a support column is fixedly connected to the chamfer at the bottom of the support shell, and the bottom of the support column is engraved with anti-slip texture.
[0012] Preferably, the bottom of the pump is fixedly connected to a connecting seat, and the surface of the connecting seat is coated with an anti-corrosion coating.
[0013] Preferably, a sealing ring is fixedly connected to the bottom of the liquid inlet pipe, and the surface of the sealing ring is coated with an anti-corrosion coating.
[0014] Preferably, a reinforcing rod is fixedly connected to the chamfered part on the inner side of the connecting frame, and the surface of the reinforcing rod is coated with an anti-corrosion coating.
[0015] Compared with the prior art, the beneficial effects of this utility model are:
[0016] 1. The inlet pipe in the storage mechanism of this application is fixed to the top of the storage tank, which facilitates the replenishment of zinc plating passivating agent into the storage tank. The top inlet method can effectively prevent impurities from entering the tank. The drain pipe and discharge pipe facilitate the discharge of passivating agent from the storage tank. The one-way valve can be used in conjunction to control the smoothness and safety of the discharge process and prevent liquid backflow.
[0017] 2. The quantitative mechanism of this application can accurately measure the flow rate of the zinc plating passivating agent in real time through an electromagnetic flowmeter. Combined with a PLC controller, it can precisely control the operation of the pump according to the set parameters, thereby achieving precise adjustment of the zinc plating passivating agent dosage, ensuring the consistency of each dosage, and improving the stability of the quality of the zinc-plated products. The liquid level sensor can monitor the liquid level of the zinc plating passivating agent in the storage tank in real time. The detection end extends deep inside to accurately obtain liquid level information, which facilitates timely understanding of the internal passivating agent inventory, prevents production interruption due to insufficient liquid, and also provides a basis for reasonable replenishment of passivating agent. The one-way valve installed at the bottom of the storage mechanism can effectively prevent the zinc plating passivating agent from flowing back during the dosing process, ensuring the normal operation of the dosing process and avoiding problems such as inaccurate measurement and damage to equipment caused by backflow. Attached Figure Description
[0018] Figure 1 This is an overall structural diagram of the adjustable dosage zinc passivating agent dispenser of this utility model.
[0019] Figure 2 This is a schematic diagram of the connecting hose of this utility model;
[0020] Figure 3 This is a schematic diagram of the structure of the liquid level sensor of this utility model;
[0021] Figure 4 This is a schematic diagram of the storage mechanism of this utility model;
[0022] Figure 5 This is a schematic diagram of the sealing ring structure of this utility model.
[0023] In the diagram, 1. Support shell; 2. Storage mechanism; 21. Connecting frame; 22. Storage tank; 23. Inlet pipe; 24. Drain pipe; 25. Discharge pipe; 3. Metering mechanism; 31. Pump; 32. Connecting hose; 33. Outlet pipe; 34. Electromagnetic flow meter; 35. PLC controller; 36. Liquid level sensor; 37. Check valve; 4. Support column; 5. Connecting seat; 6. Sealing ring; 7. Reinforcing rod. Detailed Implementation
[0024] 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.
[0025] Please see Figure 1-5 The present invention provides the following technical solution:
[0026] An adjustable dosage zinc passivating agent dispenser includes a support shell 1, a storage mechanism 2 fixedly connected to the inner side of the support shell 1, and a metering mechanism 3 fixedly connected to the top of the storage mechanism 2.
[0027] The metering mechanism 3 includes a pump 31, a connecting hose 32, an outlet pipe 33, an electromagnetic flowmeter 34, a PLC controller 35, a level sensor 36, and a check valve 37. The pump 31 is fixedly connected to the top of the support shell 1, the connecting hose 32 is fixedly connected to the right side of the pump 31, and the outlet pipe 33 is fixedly connected to the left side of the pump 31. The bottom of the outlet pipe 33 passes through the support shell 1 and is fixedly connected to the top of the electromagnetic flowmeter 34. The electromagnetic flowmeter 34 is installed on the top of the storage mechanism 2. The PLC controller 35 is installed on the front side of the support shell 1. The level sensor 36 is installed on the rear side of the top of the storage mechanism 2. The detection end of the level sensor 36 passes through and extends to the inside of the storage mechanism 2. The check valve 37 is installed at the bottom of the storage mechanism 2.
[0028] In this embodiment: the support shell 1 supports and limits the storage mechanism 2 and the metering mechanism 3; the pump 31 provides power for the delivery of the zinc plating passivating agent; the connecting hose 32 connects the pump 31 to an external device for storing the zinc plating passivating agent; the outlet pipe 33 delivers the zinc plating passivating agent pumped by the pump 31 to the electromagnetic flowmeter 34, providing a channel for liquid transmission; the electromagnetic flowmeter 34 can accurately measure the flow rate of the zinc plating passivating agent, providing data support for accurate metering; and in conjunction with the PLC controller 35, it can adjust the metering according to the settings. The working state of the pump 31 is adjusted in real time according to the set flow rate value. The PLC controller 35 can automatically control the operation of the pump 31 according to the preset program and the feedback information of the electromagnetic flow meter 34 and the liquid level sensor 36, so as to realize the precise adjustment and automated control of the zinc passivating agent dosage, reduce the error of manual operation. The detection end of the liquid level sensor 36 extends into the inside of the storage tank 22 to monitor the liquid level of the zinc passivating agent in the storage tank 22 in real time and provide timely feedback of liquid level information. The one-way valve 37 prevents the zinc passivating agent from flowing back during the dosing process and ensures the normal progress of the drainage process.
[0029] Specifically, such as Figure 4 As shown, the storage mechanism 2 includes a connecting frame 21, a storage tank 22, an inlet pipe 23, a drain pipe 24, and a discharge pipe 25. The connecting frame 21 is fixedly connected to the inner side of the support shell 1.
[0030] Specifically, such as Figure 4 As shown, the storage tank 22 is fixedly connected to the inner side of the connecting frame 21, the detection end of the liquid level sensor 36 passes through and extends to the inner side of the storage tank 22, the inlet pipe 23 is fixedly connected to the top of the storage tank 22, and the top of the inlet pipe 23 passes through the support shell 1 and is fixedly connected to the bottom of the electromagnetic flow meter 34.
[0031] Specifically, such as Figure 4 As shown, the drain pipe 24 is fixedly connected to the bottom of the storage tank 22, the one-way valve 37 is installed at the bottom of the drain pipe 24, the discharge pipe 25 is fixedly connected to the bottom of the one-way valve 37, and the bottom of the discharge pipe 25 extends through and to the outside of the support shell 1.
[0032] In this embodiment: the connecting frame 21 provides stable support for the storage tank 22, which is used to temporarily store the zinc plating passivating agent. The inlet pipe 23 can guide the zinc plating passivating agent to the inner side of the storage tank 22, and the drain pipe 24 can discharge the zinc plating passivating agent in the storage tank 22. With the cooperation of the one-way valve 37 and the drain pipe 25, the drainage process can be safely controlled to prevent backflow of liquid. The drain pipe 25 transports the zinc plating passivating agent discharged from the drain pipe 24 to the outside of the support shell 1, realizing the external release of the passivating agent.
[0033] Specifically, such as Figure 1 As shown, a support column 4 is fixedly connected to the chamfer at the bottom of the support shell 1, and the bottom of the support column 4 is engraved with anti-slip texture.
[0034] Specifically, such as Figure 2 As shown, a connecting seat 5 is fixedly connected to the bottom of the liquid pump 31, and the surface of the connecting seat 5 is coated with anti-corrosion paint.
[0035] In this embodiment: by setting the support column 4, the contact area between the equipment and the placement plane is increased, and the stability of the equipment is improved. By setting the anti-slip texture, the equipment can be prevented from sliding during use, ensuring safe use of the equipment. By setting the connecting seat 5, a stable installation base is provided for the liquid pump 31. By setting the anti-corrosion coating, the connecting seat 5 can be prevented from being corroded by chemicals such as zinc plating passivating agents, thus extending the service life of the connecting seat 5.
[0036] Specifically, such as Figure 5 As shown, a sealing ring 6 is fixedly connected to the bottom of the liquid inlet pipe 23, and the surface of the sealing ring 6 is coated with anti-corrosion paint.
[0037] Specifically, such as Figure 4 As shown, a reinforcing rod 7 is fixedly connected to the chamfer on the inner side of the connecting frame 21, and the surface of the reinforcing rod 7 is coated with anti-corrosion paint.
[0038] In this embodiment: by setting a sealing ring 6, the sealing performance between the liquid inlet pipe 23 and the storage tank 22 is enhanced, preventing leakage of the zinc passivating agent during the liquid inlet process. By setting an anti-corrosion coating, the sealing ring 6 is protected from corrosion by the passivating agent, ensuring the long-term effectiveness of the sealing effect. By setting a reinforcing rod 7, the structural strength of the connecting frame 21 is enhanced, further improving the support stability of the storage tank 22. By setting an anti-corrosion coating, the reinforcing rod 7 is protected from corrosion, ensuring the long-term stability of its structural strength.
[0039] Working Principle: First, the user installs the support shell 1 into the appropriate working position. Then, the user connects the connecting hose 32 to the external storage device for the zinc passivating agent. After connection, the user sequentially starts the PLC controller 35, electromagnetic flow meter 34, and liquid level sensor 36. Next, the user sets the precise amount of zinc passivating agent to be added through the PLC controller 35. After setting, the PLC controller 35 sends a command to start the pump 31. The pump 31 draws the zinc passivating agent from the inside of the external storage device through the connecting hose 32 and delivers it to the electromagnetic flow meter 34 through the outlet pipe 33. After passing through the electromagnetic flow meter 34 and the inlet pipe 23, the zinc passivating agent slowly flows into the inside of the storage tank 22. At this time, the electromagnetic flow meter 34 begins to collect data on the passing zinc passivating agent, providing real-time feedback on the current flow rate. Simultaneously, as the zinc passivating agent accumulates in the storage tank 22, the liquid level sensor 36 also begins to monitor the liquid level of the zinc passivating agent in the tank in real time. After the measurement is completed, when the electromagnetic flowmeter 34 detects that the amount of zinc passivating agent passing through has reached the amount preset by the user, it will send a signal to the PLC controller 35. Upon receiving the signal, the PLC controller 35 will immediately control the pump 31 to stop the pumping action. At the same time, the PLC controller 35 will open the one-way valve 37. When the one-way valve 37 is open, the zinc passivating agent will flow downward under the action of gravity, smoothly passing through the drain pipe 24, the one-way valve 37 and the discharge pipe 25, and finally being discharged to the inside of the external collection device. During this process, the liquid level sensor 36 will continuously monitor the liquid level of the zinc passivating agent inside the storage tank 22. When the liquid level sensor 36 detects that the zinc passivating agent inside the storage tank 22 has been completely discharged, it will send a signal to the PLC controller 35. Upon receiving the signal, the PLC controller 35 will control the one-way valve 37 to close, completing this quantitative dosing operation. Finally, when quantitative dosing is required again, the user only needs to set the amount of zinc passivating agent to be added through the PLC controller 35 again.
[0040] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements 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 dosing device for a passivating agent for galvanizing, of the adjustable-dose type, comprising a support casing (1), characterized in that: The inner side of the support shell (1) is fixedly connected with a storage mechanism (2), and the top of the storage mechanism (2) is fixedly connected with a quantitative mechanism (3). The quantitative mechanism (3) comprises a liquid pumping pump (31), a connecting hose (32), a liquid outlet pipe (33), an electromagnetic flowmeter (34), a PLC controller (35), a liquid level sensor (36) and a one-way valve (37), the liquid pumping pump (31) is fixedly connected to the top of the support shell (1), the connecting hose (32) is fixedly connected to the right side of the liquid pumping pump (31), the liquid outlet pipe (33) is fixedly connected to the left side of the liquid pumping pump (31), the bottom of the liquid outlet pipe (33) penetrates through the support shell (1) and is fixedly connected to the top of the electromagnetic flowmeter (34), the electromagnetic flowmeter (34) is installed on the top of the storage mechanism (2), the PLC controller (35) is installed on the front side of the support shell (1), the liquid level sensor (36) is installed on the rear side of the top of the storage mechanism (2), the detection end of the liquid level sensor (36) penetrates through and extends to the inner side of the storage mechanism (2), and the one-way valve (37) is installed on the bottom of the storage mechanism (2).
2. The adjustable dosing device for passivation agent for galvanizing according to claim 1, characterized in that: The storage mechanism (2) comprises a connecting frame (21), a reagent storage tank (22), a liquid inlet pipe (23), a liquid discharge pipe (24) and a liquid discharge pipe (25), and the connecting frame (21) is fixedly connected to the inner side of the support shell (1).
3. The adjustable dosing device for passivation agent for galvanizing according to claim 2, characterized in that: The reagent storage tank (22) is fixedly connected to the inner side of the connecting frame (21), the detection end of the liquid level sensor (36) penetrates through and extends to the inner side of the reagent storage tank (22), the liquid inlet pipe (23) is fixedly connected to the top of the reagent storage tank (22), and the top of the liquid inlet pipe (23) penetrates through the support shell (1) and is fixedly connected to the bottom of the electromagnetic flowmeter (34).
4. The adjustable dosing device for passivation agent for galvanizing according to claim 2, characterized in that: The liquid discharge pipe (24) is fixedly connected to the bottom of the reagent storage tank (22), the one-way valve (37) is installed on the bottom of the liquid discharge pipe (24), the liquid discharge pipe (25) is fixedly connected to the bottom of the one-way valve (37), and the bottom of the liquid discharge pipe (25) penetrates through and extends to the outer side of the support shell (1).
5. The adjustable dosing passivator applicator of claim 1, wherein: The support column (4) is fixedly connected to the chamfered portion at the bottom of the support shell (1), and the bottom of the support column (4) is engraved with anti-skid lines.
6. The adjustable dosing passivator applicator of claim 1, wherein: The connecting seat (5) is fixedly connected to the bottom of the liquid pumping pump (31), and the surface of the connecting seat (5) is coated with anticorrosive paint.
7. The adjustable dosing passivator applicator of claim 2, wherein: The bottom of the liquid inlet pipe (23) is fixedly connected with a sealing ring (6), and the surface of the sealing ring (6) is coated with anticorrosive paint.
8. The adjustable dosing passivator applicator of claim 2, wherein: The reinforcing rod (7) is fixedly connected to the chamfered portion on the inner side of the connecting frame (21), and the surface of the reinforcing rod (7) is coated with anticorrosive paint.