A plating solution stirring device for hot-dip galvanizing of metal pieces

Abstract

The utility model discloses a kind of plating solution stirring devices for metal piece hot galvanizing, it is related to hot galvanizing plating solution processing equipment field, including rack, lifting hole is opened in vertical direction on rack, slidingly set with movable rack in lifting hole, movable rack is installed servo motor towards rack outer side, servo motor output end is downward and is equipped with stirring mechanism, stirring mechanism includes stirring shaft, stirring vane and scraper assembly, stirring shaft top end is coaxially fixed with servo motor output end by coupling, stirring shaft is spaced apart and equipped with multiple layers of stirring vane along axial direction, the scraper assembly is fixed on stirring shaft, and located between stirring vane, scraper assembly can be self-adapting plating solution bucket diameter size and elastic close, when stirring, synchronous cleaning residual in inner wall, to reduce the raw material loss caused by dry knot, improve plating solution utilization.

Description

Technical Field

[0001] This utility model mainly relates to the technical field of hot-dip galvanizing solution processing equipment, specifically a stirring device for hot-dip galvanizing of metal parts. Background Technology

[0002] Hot-dip galvanizing is an effective method of metal corrosion protection, mainly used in metal structures in various industries. With the rapid development of cold-rolled strip steel, the hot-dip galvanizing industry has developed on a large scale. In the hot-dip galvanizing process, the quality of the galvanizing solution is one of the important factors affecting the quality of the zinc layer on the galvanized parts. In order to ensure that the zinc solution in the tank is heated evenly, a stirring device is usually used to stir the zinc solution in the tank.

[0003] The existing stirring device consists of a rotary motor, a stirring shaft, a stirring rod, and stirring blades. The rotary motor drives the stirring rod to rotate through the stirring shaft, and the stirring blades on both sides of the stirring rod stir the zinc liquid, making the zinc liquid heat evenly. However, it lacks a specific treatment mechanism for the plating solution tank wall. After long-term stirring operation, the residual plating solution on the tank wall is prone to drying and solidification, which interferes with the stability of the subsequent stirring process and degrades the performance of the plating solution.

[0004] Based on this, the present invention provides a stirring device for hot-dip galvanizing of metal parts, which solves the problem of residual plating solution on the wall of the plating solution tank easily drying and caking, increases the tank wall cleaning function, and improves the quality of the plating solution. Utility Model Content

[0005] Therefore, the purpose of this utility model is to provide a stirring device for hot-dip galvanizing of metal parts, so as to solve the technical problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: This utility model provides a stirring device for hot-dip galvanizing of metal parts, including a frame. A lifting hole is formed on the frame along the vertical direction. A movable frame is slidably disposed within the lifting hole. A servo motor is mounted on the movable frame facing outwards from the frame. The output end of the servo motor faces downwards and is equipped with a stirring mechanism. The stirring mechanism includes a stirring shaft, stirring blades, and a scraper assembly. The top end of the stirring shaft is coaxially fixed to the output end of the servo motor via a coupling. The stirring shaft has multiple layers of stirring blades spaced axially. The scraper assembly is fixed on the stirring shaft and located between the stirring blades. In this preferred embodiment, the multiple layers of stirring blades on the stirring shaft can accelerate the homogenization of the plating solution composition and temperature, shorten the stirring time, and improve the efficiency of plating solution preparation before hot-dip galvanizing.

[0007] Preferably, the scraper assembly includes a guide sleeve disposed on the side wall of the stirring shaft, an axial slide rail disposed inside the guide sleeve, a pre-tightening spring disposed inside the guide sleeve, one end of the pre-tightening spring being connected to the bottom of the guide sleeve, and the other end being connected to a slider, the slider being slidably connected to the axial slide rail, and a scraper disposed at the end of the slider away from the pre-tightening spring, the outer edge of the scraper being adapted to the curvature of the inner wall of the plating solution tank. In this preferred embodiment, the scraper assembly, through the cooperation of the pre-tightening spring, the slider and the guide sleeve, allows the scraper to adapt to the diameter of the plating solution tank and elastically adhere to it, simultaneously cleaning the residue and scale on the inner wall during stirring.

[0008] Preferably, the bottom of the frame is provided with a base, and an electric push rod is vertically provided on the upper surface of the base. The telescopic end of the electric push rod is fixedly connected to the bottom of the movable frame, and the fixed end is fixed to the upper surface of the base. In this preferred embodiment, the movable frame is driven to slide along the lifting hole of the frame by the electric push rod, and the immersion depth of the stirring mechanism can be precisely adjusted according to the specifications of the plating tank and the plating depth.

[0009] Preferably, the lifting hole is provided with a fixing component, which includes an electromagnet and a magnetic block. The electromagnet is embedded in a vertical groove in the inner wall of the lifting hole, and the adsorption surface of the electromagnet is parallel to the side wall of the movable frame. The magnetic block is fixed to the position of the movable frame corresponding to the electromagnet. In this preferred embodiment, the electromagnet in the lifting hole cooperates with the magnetic block of the movable frame, so that the movable frame can be stably adsorbed and positioned during the stirring operation.

[0010] Preferably, the movable frame is equipped with a liquid level sensor on one side of the electric actuator, and the probe of the liquid level sensor faces the opening of the plating tank. In this preferred embodiment, the liquid level sensor monitors the liquid level of the plating tank in real time, and transmits a signal to the control box when the liquid level changes.

[0011] Preferably, the base is provided with a control box on one side of the electric actuator. The control box is electrically connected to the servo motor, the electric actuator and the electromagnet. The control box receives feedback signals from the liquid level sensor and controls the actions of each component. In this preferred embodiment, the control box integrates a control circuit to uniformly schedule the servo motor, the electric actuator, the electromagnet and other components.

[0012] In summary, the present invention has the following main advantages:

[0013] This device achieves flexible adjustment and stable fixation of the stirring depth through structural innovation. The movable frame is driven by an electric actuator to slide along the lifting hole of the frame. The immersion depth of the stirring mechanism can be precisely adjusted according to the size of the plating tank and the depth of the plating solution. The multi-layered stirring blades on the stirring shaft can create a three-dimensional circulating disturbance in the plating solution, which can accelerate the homogenization of the plating solution composition and temperature, shorten the stirring time, and improve the efficiency of plating solution preparation before hot-dip galvanizing. The scraper assembly, through the cooperation of a pre-tightening spring, a slider and a guide sleeve, can adapt to the size of the plating tank and elastically fit tightly. During stirring, it can simultaneously clean the inner wall residue and scale. The electromagnet in the lifting hole cooperates with the magnetic block of the movable frame to stably attract and position the movable frame during stirring. The liquid level sensor monitors the plating solution level in real time. When the liquid level changes, it transmits a signal to the control box. The control box integrates the control circuit and uniformly dispatches the servo motor, electric actuator, electromagnet and other components. Attached Figure Description

[0014] Figure 1 This is an isometric view of the overall structure of this utility model;

[0015] Figure 2 This is a front view of the present invention;

[0016] Figure 3 This is a front sectional view of the present invention;

[0017] Figure 4 This is a structural diagram of the scraper assembly of this utility model.

[0018] Figure descriptions: 10. Frame; 11. Lifting hole; 12. Movable frame; 13. Servo motor; 14. Base; 15. Electric actuator; 16. Liquid level sensor; 17. Control box; 20. Stirring mechanism; 21. Stirring shaft; 22. Stirring blade; 23. Scraper assembly; 231. Guide sleeve; 232. Axial slide rail; 233. Preload spring; 234. Slider; 235. Scraper; 30. Fixing assembly; 31. Electromagnet; 32. Magnetic block. Detailed Implementation

[0019] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0020] The embodiments of this utility model will be described below based on its overall structure.

[0021] like Figure 2 and 4As shown, a hot-dip galvanizing solution stirring device for metal parts includes a frame 10. A lifting hole 11 is vertically formed on the frame 10. A movable frame 12 is slidably disposed within the lifting hole 11. A servo motor 13 is mounted on the movable frame 12 facing outwards from the frame 10. The output end of the servo motor 13 faces downwards and is equipped with a stirring mechanism 20. The stirring mechanism 20 includes a stirring shaft 21, stirring blades 22, and a scraper assembly 23. The top end of the stirring shaft 21 is coaxially fixed to the output end of the servo motor 13 via a coupling. The stirring shaft 21 has multiple layers of stirring blades 22 spaced axially. The scraper assembly 23 is fixed on the stirring shaft 21 and located between the stirring blades 22. The scraper assembly 23 includes a guide sleeve 231 disposed on the side wall of the stirring shaft 21. An axial slide rail 232 is disposed within the guide sleeve 231. A pre-tension spring 233 is provided, one end of which is connected to the bottom of the guide sleeve 231, and the other end is connected to the slider 234. The slider 234 is slidably connected to the axial slide rail 232. A scraper 235 is provided at the end of the slider 234 away from the pre-tension spring 233. The outer edge of the scraper 235 is adapted to the curvature of the inner wall of the plating solution tank. A stop is provided at the end of the guide sleeve 231 to limit the maximum extension length of the scraper 235. After the servo motor 13 is started, the output end drives the stirring shaft 21 to rotate through the coupling. The multi-layer stirring blades 22 rotate synchronously with the shaft, forming axial and radial mixing disturbances on the plating solution, breaking the static stratification of the plating solution, and promoting the homogenization of the composition. In the scraper assembly 23, the scraper 235 is always in contact with the inner wall of the plating solution tank with the help of the elastic force of the pre-tension spring 233. When the stirring shaft 21 rotates, the scraper 235 simultaneously scrapes off the residual plating solution on the tank wall to avoid drying.

[0022] like Figure 1 and 3As shown, a hot-dip galvanizing solution stirring device for metal parts includes a frame 10 with a base 14 at its bottom. An electric push rod 15 is vertically mounted on the upper surface of the base 14. The telescopic end of the electric push rod 15 is fixed to the bottom of a movable frame 12, and the fixed end is fixed to the upper surface of the base 14. A control box 17 is located on one side of the electric push rod 15 on the base 14. The control box 17 is electrically connected to a servo motor 13, the electric push rod 15, and an electromagnet 31. A fixing assembly 30 is provided inside a lifting hole 11. The fixing assembly 30 includes an electromagnet 31 and a magnetic block 32. The electromagnet 31 is embedded in a vertical groove on the inner wall of the lifting hole 11, and the adsorption surface of the electromagnet 31 is parallel to the side wall of the movable frame 12. The magnetic block 32 is fixed to the corresponding electromagnet on the movable frame 12. At position 31, the movable frame 12 is equipped with a liquid level sensor 16 on one side of the electric push rod 15. The probe of the liquid level sensor 16 faces the opening of the plating tank. The control box 17 receives the feedback signal from the liquid level sensor 16 and controls the operation of each component. The electric push rod 15 receives the command from the control box 17 and the telescopic end drives the movable frame 12 to move vertically along the lifting hole 11 of the frame 10. According to the different heights of the plating tank and the liquid level, the height of the stirring mechanism 20 is adjusted. When the movable frame 12 is adjusted to the target height by the electric push rod 15, the control box 17 commands the electromagnet 31 to be energized. The electromagnetic attraction force attracts the magnetic block 32 on the side wall of the movable frame 12. Through the magnetic attraction between the electromagnet 31 and the magnetic block 32, the movable frame 12 is fixed in the corresponding position in the lifting hole 11.

[0023] The working principle of this utility model is as follows:

[0024] The electrical components in this invention are all triggered by a controller.

[0025] The raw material container is placed directly below the stirring mechanism 20. The electric actuator 15 receives a command from the control box 17, and its telescopic end drives the movable frame 12 to move vertically along the lifting hole 11 of the frame 10. Depending on the height of the plating solution container, the stirring mechanism 20 is moved to the appropriate position. The control box 17 then commands the electromagnet 31 to be energized, using electromagnetic attraction to attract the magnetic block 32 on the side wall of the movable frame 12. Through the magnetic attraction between the electromagnet 31 and the magnetic block 32, the movable frame 12 is fixed in the corresponding position within the lifting hole 11. The servo motor 13 starts, and its output drives the stirring shaft 21 to rotate via a coupling. The multi-layered stirring blades 22 rotate synchronously with the shaft, creating axial and radial mixing disturbances in the plating solution, breaking up the static stratification of the plating solution and promoting... To achieve uniform composition, the scraper assembly 23 can be adjusted according to different barrel diameters. As the barrel diameter increases, the barrel wall expands outward. The scraper 235, with the help of the pre-tightening spring 233, contacts the expanded barrel wall. When the stirring shaft 21 drives the scraper 235 to rotate, the scraper 235 tends to move along the circumferential tangential direction. The barrel wall, as a rigid constraint, cannot be pushed by the scraper and will prevent the scraper 235 from continuing to move along the tangential direction, generating a reaction force. One is the sliding friction between the scraper and the barrel wall, and the other is the pushing force along the guide sleeve 231 towards the center of the stirring shaft 21, compressing the spring until the scraper 235 forms a stable contact with the barrel wall of the new barrel diameter. When the stirring shaft 21 rotates, the scraper 235 simultaneously scrapes off the residual plating solution on the barrel wall to prevent drying.

[0026] Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the present invention and are not intended to limit the invention. The specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions, and variations to the embodiments as needed without departing from the principles and spirit of the present invention, provided that such modifications, substitutions, and variations are within the scope of the claims of the present invention and are protected by patent law.

Claims

1. A stirring device for hot-dip galvanizing of metal parts, comprising a frame (10), characterized in that... The frame (10) has a vertical lifting hole (11) and a movable frame (12) is slidably arranged in the lifting hole (11). A servo motor (13) is installed on the movable frame (12) facing the outside of the frame. The output end of the servo motor (13) faces downward and is provided with a stirring mechanism (20). The stirring mechanism (20) includes a stirring shaft (21), stirring blades (22) and a scraper assembly (23). The top end of the stirring shaft (21) is coaxially fixed to the output end of the servo motor (13) through a coupling. The stirring shaft (21) is provided with multiple layers of stirring blades (22) spaced apart along the axial direction. The scraper assembly (23) is fixed on the stirring shaft (21) and located between the stirring blades (22).

2. The stirring device for hot-dip galvanizing of metal parts according to claim 1, characterized in that, The scraper assembly (23) includes a guide sleeve (231) located on the side wall of the stirring shaft (21), and an axial slide rail (232) and a pre-tightening spring (233) are provided inside it. One end of the pre-tightening spring (233) is connected to the bottom of the guide sleeve (231), and the other end is connected to the slider (234). The slider (234) is slidably connected to the axial slide rail (232). A scraper (235) is provided at the end of the slider (234) away from the pre-tightening spring (233). The outer edge of the scraper (235) is adapted to the curvature of the inner wall of the plating tank.

3. The stirring device for hot-dip galvanizing of metal parts according to claim 1, characterized in that, The frame (10) has a base (14) at the bottom, and an electric push rod (15) is vertically provided on the upper surface of the base (14). The telescopic end of the electric push rod (15) is fixed to the bottom of the movable frame (12), and the fixed end is fixed to the upper surface of the base (14).

4. The stirring device for hot-dip galvanizing of metal parts according to claim 1, characterized in that, The lifting hole (11) is provided with a fixing component (30), which includes an electromagnet (31) and a magnetic block (32). The electromagnet (31) is embedded in the vertical groove of the inner wall of the lifting hole (11), and the adsorption surface of the electromagnet (31) is parallel to the side wall of the movable frame (12). The magnetic block (32) is fixed to the movable frame (12) at the position corresponding to the electromagnet (31).

5. The stirring device for hot-dip galvanizing of metal parts according to claim 1, characterized in that, The movable frame (12) is equipped with a liquid level sensor (16) on one side of the electric push rod (15), and the probe of the liquid level sensor (16) faces the opening of the plating tank.

6. The stirring device for hot-dip galvanizing of metal parts according to claim 3, characterized in that, The base (14) is located on one side of the electric push rod (15) and has a control box (17). The control box (17) is electrically connected to the servo motor (13), the electric push rod (15) and the electromagnet (31). The control box (17) receives feedback signals from the liquid level sensor (16) and controls the actions of each component.

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