Galvanizing control device

Abstract

The utility model discloses a galvanization control device which comprises air knives arranged on the two sides of strip steel, air outlet nozzles of the air knives face one side of the strip steel, the air knives are installed on a machine frame, air inlet connectors are arranged on the air knives, cleaning heads used for cleaning the air outlet nozzles are arranged in cavities of the air knives, and the cleaning heads can move left and right in the cavities of the air knives. The movable cleaning head is arranged in the cavity of the air knife, and when the air outlet nozzle of the air knife is blocked, the cleaning head can be controlled to move in the air outlet nozzle and clean the inner wall of the air outlet nozzle, so that blocked zinc slag is cleaned, normal air injection operation of the air knife is guaranteed, and the service life of the air knife is prolonged. And therefore, the thickness of the zinc liquid on the surface of the strip steel can be normally controlled, and normal strip steel galvanizing operation and the quality of galvanized strip steel are guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of galvanizing technology, and in particular to a galvanizing control device. Background Technology

[0002] After processing, strip steel is typically galvanized to improve its corrosion resistance. On the galvanizing production line, air knives are installed to control the thickness of the zinc layer on the strip surface. The air knife sprays compressed air from its nozzle, and before the molten zinc on the strip solidifies, the airflow scrapes off excess zinc, thus controlling the thickness of the zinc layer. However, during this scraping operation, the strip surface vibrates, inevitably causing some molten zinc to drip onto the nozzle. Over time, the solidified zinc will clog the nozzle's pores. This blockage leads to uneven zinc layer distribution on the strip surface, affecting the quality of the galvanizing. Furthermore, the nozzle's installation location makes cleaning extremely inconvenient for workers, severely impacting the normal operation of the strip galvanizing process. Utility Model Content

[0003] The purpose of this invention is to overcome the shortcomings of the prior art and provide a galvanizing control device, thereby effectively solving the deficiencies in the prior art.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a galvanizing control device, comprising air knives placed on both sides of a strip steel, wherein the air outlets of the air knives are all arranged facing one side of the strip steel, the air knives are mounted on a frame, and an air inlet connector is provided on the air knives. A cleaning head for cleaning the air outlets is located in the chamber of the air knives, and the cleaning head can move left and right within the chamber of the air knives.

[0005] Furthermore, the air knife is provided with a drive cylinder on the side away from the air outlet. The piston rod of the drive cylinder passes through the side wall of the air knife and extends into the chamber of the air knife. One end of the drive cylinder piston rod located in the chamber is fixedly connected to the cleaning head.

[0006] Furthermore, the cleaning head has an arc-shaped cross-section, and a scraper is formed on the edge of the cleaning head facing the air outlet. The scraper is arranged in close contact with the inner wall of the air outlet.

[0007] Furthermore, the cleaning head is provided with a number of air holes evenly distributed throughout.

[0008] Furthermore, a mounting bracket is provided on the frame, and the drive cylinder is mounted on the mounting bracket.

[0009] Furthermore, the piston rod of the drive cylinder is provided with an installation head, the cleaning head is fixedly connected to the installation head, the air knife is provided with a through hole for easy insertion of the piston rod of the drive cylinder, and the installation head blocks the through hole in the chamber.

[0010] The above-mentioned technical solution of this utility model has the following beneficial effects: By setting a movable cleaning head in the chamber of the air knife, when the air outlet of the air knife is blocked, the cleaning head can be controlled to move in the air outlet and clean the inner wall of the air outlet, thereby cleaning the blocked zinc dross, ensuring the normal air jet operation of the air knife, and thus enabling normal control of the zinc liquid thickness on the strip steel surface, ensuring the normal progress of the strip steel galvanizing operation and the quality of the galvanized strip steel. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the main structure of an embodiment of the present utility model.

[0012] Figure 2 for Figure 1 Enlarged view of point A in the middle. Detailed Implementation

[0013] To better understand the above-mentioned objectives, features and advantages of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other.

[0014] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the scope of protection of the present invention is not limited to the specific embodiments disclosed below.

[0015] like Figure 1-2 As shown, the galvanizing control device described in this embodiment includes air knives 1 placed on both sides of the strip steel 3. The air outlets 2 of the air knives 1 are all arranged facing one side of the strip steel 3. The air knives 1 are mounted on the frame 4. The air knives 1 are provided with air inlet connectors 5. The air inlet connectors 5 are connected to an external air supply device through pipelines. The cleaning head 6 in the chamber of the air knives 1 is used to clean the air outlets 2. The cleaning head 6 can move left and right in the chamber of the air knives 1.

[0016] The air knife 1 has a drive cylinder 7 on the side away from the air outlet 2. The piston rod of the drive cylinder 7 passes through the side wall of the air knife 1 and extends into the chamber of the air knife 1. The end of the piston rod of the drive cylinder 7 located in the chamber is fixedly connected to the cleaning head 6.

[0017] The cross-section of the cleaning head 6 is arc-shaped, and the edge of the cleaning head 6 facing the air outlet 2 forms a scraper, which is arranged in close contact with the inner wall of the air outlet 2.

[0018] The cleaning head 6 is provided with several air holes 6a evenly distributed on it. The air holes 6a ensure the flow of gas. When the cleaning head 6 cleans the air outlet 2, the gas can also be discharged.

[0019] A mounting bracket 8 is provided on the frame 4, and a drive cylinder 7 is mounted on the mounting bracket 8. The piston rod of the drive cylinder 7 is arranged facing the air knife 1.

[0020] The piston rod of the drive cylinder 7 is provided with an installation head 9. The cleaning head 6 is fixedly connected to the installation head 9. The air knife 1 is provided with a through hole to facilitate the insertion of the piston rod of the drive cylinder 7. The installation head 9 seals the through hole in the chamber.

[0021] The working principle of this utility model is as follows: The air supply device is connected to the air inlet connector 5 on the air knife 1 through a pipeline and sends compressed air into the air knife 1. The air is then blown towards the strip steel 3 through the air outlet 2. The blown air scrapes off excess zinc liquid from the surface of the strip steel. As the strip steel galvanizing process continues, zinc liquid will inevitably stick to the air outlet 2. After this zinc liquid solidifies, it can easily block the air outlet of the air outlet 2. Once a blockage occurs, the drive cylinder 7 can be controlled to... When the air knife 1 is working, the piston rod of the drive cylinder 7 moves to the side of the air outlet 2, so that the cleaning head 6 enters the interior of the air outlet 2. As the cleaning head 6 moves inside the air outlet 2, the scraper at the end of the cleaning head 6 scrapes off the zinc dross adhering to the air outlet 2. The scraped zinc dross is then pushed out through the cleaning head 6 at the air outlet 2 and falls into the zinc pot. Then the cleaning head 6 is retrieved and seals the perforation on the air knife 1. Compressed air continues to be discharged through the air outlet 2 and performs the purging operation.

[0022] The embodiments of this utility model are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the utility model to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described in order to better illustrate the principles and practical applications of this utility model, and to enable those skilled in the art to understand this utility model and design various embodiments with various modifications suitable for a particular purpose.

Claims

1. A galvanizing control device, characterized in that: The device includes air knives placed on both sides of the strip steel, with the air outlets of the air knives all facing one side of the strip steel. The air knives are mounted on a frame and are equipped with air inlet connectors. A cleaning head for cleaning the air outlets is located inside the air knife chamber and can move left and right inside the air knife chamber. The air knife has a drive cylinder on the side away from the air outlet. The piston rod of the drive cylinder passes through the side wall of the air knife and extends into the chamber of the air knife. One end of the drive cylinder piston rod located in the chamber is fixedly connected to the cleaning head. The cleaning head has an arc-shaped cross-section, and a scraper is formed on the edge of the cleaning head facing the air outlet. The scraper is arranged in close contact with the inner wall of the air outlet.

2. The galvanizing control device according to claim 1, characterized in that: The cleaning head is provided with a number of air holes evenly distributed.

3. The galvanizing control device according to claim 2, characterized in that: The frame is provided with a mounting bracket, and the drive cylinder is mounted on the mounting bracket.

4. The galvanizing control device according to claim 3, characterized in that: The piston rod of the drive cylinder is provided with an installation head, the cleaning head is fixedly connected to the installation head, the air knife is provided with a through hole for easy insertion of the piston rod of the drive cylinder, and the installation head blocks the through hole in the chamber.

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