Uniform galvanizing device for cold-rolled strip steel

Abstract

The utility model discloses a uniform galvanizing device for cold-rolled strip steel, and relates to the technical field of strip steel galvanizing. The cleaning device comprises a galvanizing box, a cleaning mechanism is arranged on the galvanizing box, the cleaning mechanism comprises a cleaning box fixedly connected to the left side of the galvanizing box, and the top and the bottom of the cleaning box are each connected with two sliding rods in a sliding mode. The surface of the strip steel is cleaned through the cleaning mechanism, so that oxide skin, greasy dirt and impurities on the surface of the strip steel are effectively removed, the substances are prevented from hindering full contact between molten zinc and the strip steel, the molten zinc can be evenly spread on the surface of the strip steel, micro unevenness and defects caused by various impurities on the surface of the strip steel can be eliminated, and the service life of the strip steel is prolonged. The physicochemical properties of the surface of the strip steel are more uniform and consistent, so that zinc ions can be uniformly deposited in the electrochemical reaction process, the uniform and continuous thickness of a zinc coating is finally ensured, the zinc plating quality is greatly improved, the corrosion resistance of the strip steel is improved, and the service life of the strip steel is prolonged.

Description

Technical Field

[0001] This utility model belongs to the field of strip steel galvanizing technology, and in particular relates to a device for uniform galvanizing cold-rolled strip steel. Background Technology

[0002] In modern industrial production, steel strip is widely used in many fields such as building materials, automobile manufacturing, electronic equipment and daily necessities. In order to improve the corrosion resistance and service life of steel strip, galvanizing has become a common and critical treatment method. In the galvanizing process, the cleanliness of the steel strip surface is a key factor affecting the galvanizing quality. A clean surface can ensure that the zinc liquid adheres evenly. Therefore, thoroughly cleaning the steel strip surface is extremely important for ensuring the quality and performance of the steel strip.

[0003] Some existing galvanizing equipment does not allow for thorough cleaning of the strip surface during use. This may result in residual oxide scale, oil, and impurities on the strip surface, which can hinder the full contact between the molten zinc and the strip. Consequently, the molten zinc cannot be spread evenly, resulting in uneven galvanizing layer thickness and reduced galvanizing quality and corrosion resistance of the strip. Utility Model Content

[0004] The purpose of this invention is to provide a device for uniform galvanizing cold-rolled strip steel. By incorporating a cleaning mechanism, it solves the problem that some existing galvanizing devices are not convenient for thoroughly cleaning the surface of the strip steel during use.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0006] This utility model relates to a device for uniform galvanizing cold-rolled strip steel, comprising a galvanizing box, wherein the galvanizing box is equipped with a cleaning mechanism and a stirring mechanism.

[0007] The cleaning mechanism includes a cleaning box fixedly connected to the left side of the galvanizing box. Two sliding rods are slidably connected to the top and bottom of the cleaning box. One end of several sliding rods extends into the interior of the cleaning box. A pull plate is fixedly connected between two corresponding ends of several sliding rods. Springs are wound around several sliding rods. A brush plate is fixedly connected to the end of two corresponding sliding rods away from the corresponding pull plate. A strip steel runs through the galvanizing box and is slidably connected to the cleaning box. The two brush plates contact the top and bottom of the strip steel, respectively. The stirring mechanism includes a support frame fixedly connected to the top of the galvanizing box.

[0008] Furthermore, a collection box is fixedly connected to the left side of the galvanized box, a negative pressure fan is fixedly connected to the front side of the galvanized box, and a connecting pipe is fixedly connected between the collection box and the negative pressure fan.

[0009] Furthermore, a suction shell is fixedly connected to the rear side of the cleaning box, the front side of the suction shell extends into the interior of the cleaning box, and a connecting pipe is fixedly connected between the suction shell and the collection box.

[0010] Furthermore, two electric push rods are fixedly connected to the top of the support frame. The output shafts of the two electric push rods extend into the interior of the galvanizing box and are slidably connected to the support frame. The output shafts of the two electric push rods are equipped with pressure rollers. An auxiliary roller is provided on the top of the galvanizing box. The two pressure rollers and the two auxiliary rollers are slidably connected to the strip steel.

[0011] Furthermore, a rotating shaft one is rotatably connected to the inner wall of the galvanizing box, and a rotating shaft two is rotatably connected to the inner wall of the galvanizing box. The right ends of both rotating shaft one and rotating shaft two extend to the outside of the galvanizing box. A motor is fixedly connected to the right side of the galvanizing box, and the output end of the motor is fixedly connected to rotating shaft one through a shaft coupling.

[0012] Furthermore, pulleys are fixedly connected to both the first and second rotating shafts, and a belt is sleeved between the two pulleys.

[0013] Furthermore, several stirring blades are fixedly connected to both the auxiliary roller and the rotating shaft, and an installation cavity is provided inside the galvanizing box.

[0014] Furthermore, both pulleys and the belt are located inside the mounting cavity, and several heating tubes are fixedly connected to the inner bottom wall of the galvanized box.

[0015] This utility model has the following beneficial effects:

[0016] 1. By setting up a cleaning mechanism, the pull plate is released, and the spring returns to its original position under its own elasticity, thereby moving the pull plate. When the pull plate moves, it moves the sliding rod, which in turn moves the brush plate. Then, the negative pressure fan is started, and the negative pressure fan extracts the air from the collection box through the connecting pipe one until the collection box can drive the connecting pipe two and the suction shell to work. The cleaning mechanism cleans the surface of the strip steel, effectively removing oxide scale, oil, and impurities from the strip steel surface. This prevents these substances from hindering the full contact between the zinc liquid and the strip steel, allowing the zinc liquid to be evenly spread on the strip steel surface. It can also eliminate microscopic unevenness and defects on the strip steel surface caused by various impurities, making the physical and chemical properties of the strip steel surface more uniform. This allows zinc ions to be evenly deposited during the electrochemical reaction process, ultimately ensuring a uniform and continuous zinc coating thickness, greatly improving the zinc plating quality, and enhancing the corrosion resistance and service life of the strip steel.

[0017] 2. By setting up a stirring mechanism and activating the electric push rod, the electric push rod moves the pressure roller downwards, which then pushes the strip steel into the zinc plating solution in the galvanizing tank. The motor is then activated, driving shaft one to rotate. The rotation of shaft one, via a pulley and belt, drives shaft two to rotate. The rotation of shafts one and two, in turn, drives the stirring blades. This stirring mechanism agitates the zinc plating solution, ensuring thorough and uniform mixing of all components, preventing concentration gradients, and ensuring that all parts of the strip steel react with the solution of the same proportions during galvanizing. This promotes uniform galvanizing. Stirring also enhances the fluidity of the solution, allowing for timely and even replenishment of zinc ions on the strip steel surface, preventing uneven galvanizing thickness due to excessive local zinc ion consumption. Furthermore, it helps to disperse air bubbles generated on the strip steel surface during galvanizing, preventing missed plating or uneven coating due to air bubbles hindering zinc contact, thus ensuring consistent galvanizing thickness and improving galvanizing quality.

[0018] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 This is a schematic diagram of the rear view structure of this utility model;

[0022] Figure 3 This is a schematic diagram of the structure of the galvanized box of this utility model;

[0023] Figure 4 This is a schematic diagram of the structure of the motor of this utility model;

[0024] Figure 5 This is a schematic diagram of the cleaning box of this utility model.

[0025] The attached diagram lists the components represented by each number as follows:

[0026] 1. Galvanized box; 2. Cleaning mechanism; 3. Stirring mechanism; 21. Cleaning box; 22. Slide rod; 23. Spring; 24. Pull plate; 25. Brush plate; 26. Strip steel; 27. Collection box; 28. Negative pressure fan; 29. ​​Connecting pipe one; 210. Suction shell; 211. Connecting pipe two; 31. Support frame; 32. Electric push rod; 33. Pressure roller; 34. Auxiliary roller; 35. Rotating shaft one; 36. Rotating shaft two; 37. Motor; 38. Pulley; 39. Belt; 310. Stirring blade; 311. Mounting cavity; 312. Heating tube. Detailed Implementation

[0027] 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.

[0028] Please see Figure 1-5As shown, this utility model is a device for uniform galvanizing cold-rolled strip steel, including a galvanizing box 1. The galvanizing box 1 is equipped with a cleaning mechanism 2 and a stirring mechanism 3. The cleaning mechanism 2 includes a cleaning box 21 fixedly connected to the left side of the galvanizing box 1. Two sliding rods 22 are slidably connected to the top and bottom of the cleaning box 21. One end of each sliding rod 22 extends into the interior of the cleaning box 21. A pull plate 24 is fixedly connected between corresponding pairs of the other ends of the sliding rods 22. Springs 23 are wound around each sliding rod 22. A brush plate 25 is fixedly connected to the end of each corresponding pair of sliding rods 22 away from the corresponding pull plate 24. A strip steel 26 passes through the galvanizing box 1 and is slidably connected to the cleaning box 21. The two brush plates 25 contact the top and bottom of the strip steel 26, respectively. The stirring mechanism 3 includes a support frame 31 fixedly connected to the top of the galvanizing box 1. A collection box 27 is fixedly connected to the left side of the galvanizing box 1. The front of the galvanizing box 1... A negative pressure fan 28 is fixedly connected to the side of the cleaning box 21. A connecting pipe 29 is fixedly connected between the collection box 27 and the negative pressure fan 28. A suction shell 210 is fixedly connected to the rear side of the cleaning box 21. The front side of the suction shell 210 extends into the interior of the cleaning box 21. A connecting pipe 211 is fixedly connected between the suction shell 210 and the collection box 27. The cleaning mechanism 2 cleans the surface of the strip steel 26, thereby effectively removing oxide scale, oil stains and impurities from the surface of the strip steel 26. This prevents these substances from hindering the full contact between the zinc liquid and the strip steel 26, allowing the zinc liquid to be evenly spread on the surface of the strip steel 26. It can also eliminate the micro-unevenness and defects on the surface of the strip steel 26 caused by various impurities, making the physical and chemical properties of the surface of the strip steel 26 more uniform. This allows zinc ions to be evenly deposited during the electrochemical reaction process, ultimately ensuring that the zinc coating thickness is uniform and continuous, greatly improving the zinc plating quality and enhancing the corrosion resistance and service life of the strip steel 26.

[0029] Two electric push rods 32 are fixedly connected to the top of the support frame 31. The output shafts of both electric push rods 32 extend into the interior of the galvanizing box 1 and are slidably connected to the support frame 31. Pressure rollers 33 are installed on the output shafts of both electric push rods 32. An auxiliary roller 34 is installed on the top of the galvanizing box 1. The two pressure rollers 33 and the two auxiliary rollers 34 are slidably connected to the strip steel 26. A rotating shaft 35 is rotatably connected to the inner wall of the galvanizing box 1, and a rotating shaft 36 is rotatably connected to the inner wall of the galvanizing box 1. The right ends of both rotating shafts 35 and 36 extend to the outside of the galvanizing box 1. A motor 37 is fixedly connected to the right side of the galvanizing box 1. The output end of the motor 37 is fixedly connected to rotating shaft 35 via a coupling. Pulleys 38 are fixedly connected to both rotating shafts 35 and 36, and a belt 39 is fitted between the two pulleys 38. Auxiliary rollers 34 and rotating shaft 35 are fixedly connected to... The galvanizing tank 1 is equipped with several stirring blades 310. An installation cavity 311 is opened inside the galvanizing tank 1. Two pulleys 38 and a belt 39 are located inside the installation cavity 311. Several heating tubes 312 are fixedly connected to the inner bottom wall of the galvanizing tank 1. The galvanizing solution is stirred by the stirring mechanism 3, so that the various components in the solution are fully mixed and uniform, avoiding the formation of concentration gradients. This ensures that all parts of the strip steel 26 react with the solution of the same proportion of components during galvanizing, which is conducive to uniform galvanizing. Stirring also enhances the fluidity of the solution, so that the zinc ions on the surface of the strip steel 26 are replenished in a timely and even manner, preventing the local zinc ion consumption from being too fast and causing uneven galvanizing thickness. It also helps to dissipate the air bubbles generated on the surface of the strip steel during the galvanizing process, avoiding the situation where the zinc liquid is blocked by the adhesion of air bubbles, resulting in missed galvanizing or uneven coating. This ensures that the galvanized layer thickness is consistent and improves the galvanizing quality.

[0030] A specific application of this embodiment is as follows: When using this device, the strip steel 26 is first passed through the cleaning box 21, and guided by the pressure roller 33 and the auxiliary roller 34. When the strip steel 26 passes through the cleaning box 21, the pull plate 24 is first pulled away from the cleaning box 21, causing the pull plate 24 to move the slide rod 22. When the slide rod 22 moves, since one end of the spring 23 is fixedly connected to the cleaning box 21 and the other end is fixedly connected to the pull plate 24, the pull plate 24 also causes the spring 23 to stretch when it moves. The movement of the slide rod 22 causes the brush plate 25 to move, thereby increasing the distance between the two brush plates 25, which facilitates the passing of the strip steel 26 through the cleaning box 21. When the strip steel 26 passes through the cleaning box 21, the pull plate 24 is released, and the spring 23 returns to its original stretching under its own elasticity, thereby causing the pull plate 24 to move. When the pull plate 24 moves, it causes the slide rod 22 to move. The movement of the sliding rod 22 causes the brush plate 25 to move, bringing the two brush plates 25 closer together until they contact the upper and lower surfaces of the strip steel 26. As the strip steel 26 moves during the galvanizing process, the surface of the strip steel 26 rubs against the two brush plates 25, removing dust and other debris from its surface. At this time, the negative pressure fan 28 is activated, drawing air out of the collection box 27 through the connecting pipe 29. This creates a pressure difference between the internal and external environments of the collection box 27, which in turn drives the connecting pipe 211 to work. The connecting pipe 211 then collects the dust and other debris cleaned by the brush plates 25 into the collection box 27 through the suction shell 210, preventing dust and other debris from accumulating in the cleaning box 21 or re-adhering to the surface of the strip steel 26, thus avoiding uneven galvanizing in the subsequent galvanizing process.

[0031] The electric push rod 32 is activated, which drives the pressure roller 33 to move downwards. The pressure roller 33 then pushes the strip steel 26 into the zinc plating solution in the galvanizing tank 1, ensuring full contact between the strip steel 26 and the zinc plating solution. The auxiliary roller 34 further reduces friction between the strip steel 26 and the galvanizing tank 1. The motor 37 is activated, which drives the rotating shaft 35 to rotate. When the rotating shaft 35 rotates, it drives the rotating shaft 36 to rotate via the pulley 38 and belt 39. The rotation of the rotating shaft 35 and the rotating shaft 36 drives the stirring blade 310 to rotate, which in turn stirs the zinc plating solution in the galvanizing tank 1, further enhancing the contact between the zinc plating solution and the strip steel 26. This ensures that the zinc plating of the strip steel 26 can be uniformly achieved by heating the zinc plating solution through the heating tube 312. The mounting cavity 311 provides mounting positions for the pulley 38 and belt 39, while also increasing the space utilization of the galvanizing tank 1.

[0032] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0033] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A device for uniform galvanizing cold-rolled strip steel, characterized in that: It includes a galvanizing box (1), which is equipped with a cleaning mechanism (2) and a stirring mechanism (3); The cleaning mechanism (2) includes a cleaning box (21) fixedly connected to the left side of the galvanized box (1). The top and bottom of the cleaning box (21) are slidably connected to two slide rods (22). One end of each slide rod (22) extends into the interior of the cleaning box (21). A pull plate (24) is fixedly connected between two corresponding ends of the slide rods (22). A spring (23) is wound around each slide rod (22). A brush plate (25) is fixedly connected between the ends of the two corresponding slide rods (22) away from the corresponding pull plate (24). A strip steel (26) runs through the galvanized box (1). The strip steel (26) is slidably connected to the cleaning box (21). The two brush plates (25) are in contact with the top and bottom of the strip steel (26) respectively. The stirring mechanism (3) includes a support frame (31) fixedly connected to the top of the galvanized box (1).

2. The cold-rolled strip uniform galvanizing device according to claim 1, characterized in that, A collection box (27) is fixedly connected to the left side of the galvanized box (1), and a negative pressure fan (28) is fixedly connected to the front side of the galvanized box (1). A connecting pipe (29) is fixedly connected between the collection box (27) and the negative pressure fan (28).

3. The cold-rolled strip uniform galvanizing device according to claim 2, characterized in that, A suction shell (210) is fixedly connected to the rear side of the cleaning box (21), and the front side of the suction shell (210) extends into the interior of the cleaning box (21). A connecting pipe (211) is fixedly connected between the suction shell (210) and the collection box (27).

4. The cold-rolled strip uniform galvanizing device according to claim 3, characterized in that, Two electric push rods (32) are fixedly connected to the top of the support frame (31). The output shafts of the two electric push rods (32) extend into the interior of the galvanizing box (1) and are slidably connected to the support frame (31). The output shafts of the two electric push rods (32) are equipped with pressure rollers (33). The top of the galvanizing box (1) is equipped with auxiliary rollers (34). The two pressure rollers (33) and the two auxiliary rollers (34) are slidably connected to the strip steel (26).

5. The cold-rolled strip uniform galvanizing device according to claim 4, characterized in that, The inner wall of the galvanizing box (1) is rotatably connected to a rotating shaft one (35), and the inner wall of the galvanizing box (1) is rotatably connected to a rotating shaft two (36). The right ends of the rotating shaft one (35) and the rotating shaft two (36) extend to the outside of the galvanizing box (1). A motor (37) is fixedly connected to the right side of the galvanizing box (1), and the output end of the motor (37) is fixedly connected to the rotating shaft one (35) through a coupling.

6. The cold-rolled strip uniform galvanizing apparatus according to claim 5, characterized in that, Both the first rotating shaft (35) and the second rotating shaft (36) are fixedly connected to pulleys (38), and a belt (39) is sleeved between the two pulleys (38).

7. The cold-rolled strip uniform galvanizing apparatus according to claim 6, characterized in that, Several stirring blades (310) are fixedly connected to the auxiliary roller (34) and the rotating shaft (35), and the galvanized box (1) has an installation cavity (311) inside.

8. The apparatus for uniform galvanizing cold-rolled strip steel according to claim 7, characterized in that, Both pulleys (38) and belt (39) are located inside the mounting cavity (311), and several heating tubes (312) are fixedly connected to the inner bottom wall of the galvanized box (1).

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