A hot dip galvanizing coil annealing apparatus

Abstract

The utility model relates to the technical field of heat treatment especially relates to a kind of hot galvanizing roll annealing equipment, when annealing to hot galvanizing roll, hot galvanizing roll can be unfolded heating, the heating effect of hot galvanizing roll is better, annealing effect is good, it is easy to use, and practicality is high;Including support plate, servo motor and unwinding shaft, servo motor is fixedly installed on support plate, unwinding shaft is rotatably installed on support plate, and the output end of servo motor is connected with unwinding shaft;It also includes guide mechanism, heating mechanism, cooling mechanism and winding mechanism, guide mechanism is located at the left side of support plate, guide mechanism has the function of guiding, is located at the left side of support plate, heating mechanism has the function of heating, cooling mechanism is located at the left side of heating mechanism, cooling mechanism has the function of cooling, winding mechanism has the function of winding.

Description

Technical Field

[0001] This utility model relates to the technical field of heat treatment, and in particular to an annealing device for hot-dip galvanized coils. Background Technology

[0002] After quenching, hot-dip galvanized coils require annealing to eliminate residual stress and improve their performance. In the prior art, utility model patent application number 202321716851.7 discloses a high-temperature annealing device for hot-dip galvanized iron wire. This device mainly consists of an annealing furnace shell and a heating device. When annealing the workpiece, the entire workpiece is placed in the annealing furnace, and then the heating device is turned on to heat the workpiece to the annealing temperature. After heating, the heating device is turned off, allowing the workpiece to cool slowly. However, this method has the following problems: when applied to the annealing of galvanized coils, because the entire workpiece is heated, and hot-dip galvanized coils are relatively thick, uneven heating is likely, resulting in poor annealing. Therefore, a suitable annealing device for hot-dip galvanized coils is needed. Utility Model Content

[0003] To solve the above-mentioned technical problems, this utility model provides a hot-dip galvanized coil annealing equipment that can unfold and heat the hot-dip galvanized coil during annealing, resulting in better heating and annealing effects, and is convenient to use and highly practical.

[0004] This utility model relates to a hot-dip galvanized coil annealing device, comprising a support plate, a servo motor, and an unwinding shaft. The servo motor is fixedly mounted on the support plate, and the unwinding shaft is rotatably mounted on the support plate. The output end of the servo motor is connected to the unwinding shaft. It also includes a guiding mechanism, a heating mechanism, a cooling mechanism, and a winding mechanism. The guiding mechanism is located on the left side of the support plate and has a guiding function. The heating mechanism is located on the left side of the support plate and has a heating function. The cooling mechanism is located on the left side of the heating mechanism and has a cooling function. The winding mechanism has a winding function. During the annealing of the hot-dip galvanized coil, the coil is placed on the unwinding shaft, then connected to the winding mechanism, and then the servo motor and winding mechanism are activated. The mechanism enables the unwinding and rewinding mechanisms to operate. As the unwinding shaft rotates, it unwinds the hot-dip galvanized coil, unfolding it into a sheet of hot-dip galvanized steel. This sheet then enters the heating mechanism, which is activated to heat the unfolded coil until it reaches the annealing temperature. After a short period, the servo motor and rewinding mechanism are activated again, allowing the heated sheet to slowly cool below the cooling mechanism. Finally, the rewinding mechanism rewinds the cooled sheet. This mechanism effectively unfolds the hot-dip galvanized coil during annealing, resulting in better heating and annealing effects. It is convenient to use and highly practical.

[0005] Preferably, the heating mechanism includes a support rod, a heating box, and two sets of mounting plates. The heating box is fixedly installed on the upper end of the support rod, and a heating chamber is provided inside the heating box. Both ends of the heating box are open. The two sets of mounting plates are respectively fixedly installed on the upper and lower ends of the heating chamber of the heating box, and multiple sets of electric heating lamps are provided on both sets of mounting plates. When heating the unfolded hot-dip galvanized coil, the hot-dip galvanized sheet is placed into the heating chamber of the heating box. Then, the multiple sets of electric heating lamps on the two sets of mounting plates are turned on to heat the upper and lower parts of the hot-dip galvanized sheet simultaneously until the hot-dip galvanized sheet reaches the annealing temperature. After waiting for a period of time, the heated hot-dip galvanized sheet is then placed into the cooling mechanism for cooling. This mechanism can heat the upper and lower ends of the hot-dip galvanized sheet simultaneously, resulting in better heating effect, more uniform heating, and better annealing effect.

[0006] Preferably, the guiding mechanism includes guide roller A, guide roller B, support plate A, and support plate B. Guide roller A and guide roller B are located on the left and right sides of the heating box, respectively. Guide roller A and guide roller B have the same height, with guide roller A being higher than the unwinding shaft and guide roller B being lower than the winding mechanism. Guide roller A and guide roller B are rotatably mounted on support plate A and support plate B, respectively. With this configuration, the unfolded hot-dip galvanized coil enters the heating box after being guided by guide roller A. Then, the hot-dip galvanized coil passes the lower end of guide roller B before entering the winding mechanism. Because guide roller A and guide roller B have the same height, this ensures that the hot-dip galvanized sheet inside the heating chamber of the heating box is in a horizontal state, facilitating the heating of the hot-dip galvanized sheet by the electric heating lamps inside the heating chamber, resulting in better heating effect.

[0007] Preferably, the cooling mechanism includes an exhaust duct, a support frame, an air supply duct, and a cooler. The exhaust duct is fixedly installed on the support frame, and multiple exhaust ports are provided at the lower part of the exhaust duct. The input end of the exhaust duct is connected to the cooler through the air supply duct. When the hot-dip galvanized sheet is heated to the annealing temperature in the heating box and kept at that temperature for a period of time, the hot-dip galvanized sheet is moved below the exhaust duct. Then, the cooler is turned on, and cold air is blown onto the hot-dip galvanized sheet through the air supply duct and the exhaust duct in sequence to cool it. The airflow speed output by the cooler is controlled to ensure that the hot-dip galvanized sheet cools slowly.

[0008] Preferably, the winding mechanism includes a vertical plate, a drive motor, and a winding roller. The drive motor is fixedly mounted on the vertical plate, and the winding roller is rotatably mounted on the vertical plate. The input end of the winding roller is connected to the drive motor. After the hot-dip galvanized sheet is cooled, it passes the lower end of the guide roller B and is wound onto the winding roller. Then, the drive motor is turned on to rotate the winding roller, thus winding up the annealed hot-dip galvanized sheet. This facilitates the collection of the hot-dip galvanized sheet.

[0009] Preferably, an insulation layer is provided on the outer wall of the heating box; this arrangement reduces heat loss.

[0010] Preferably, the heating box is equipped with a thermometer; this facilitates the monitoring of the temperature inside the heating chamber.

[0011] Compared with the prior art, the advantages of this utility model are as follows: when annealing hot-dip galvanized coils, the hot-dip galvanized coils can be unfolded and heated, resulting in better heating effect, better annealing effect, convenient use, and high practicality. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the first isometric structure of this utility model;

[0013] Figure 2 This is a schematic diagram of the second isometric structure of this utility model;

[0014] Figure 3 This is a schematic diagram of the heating mechanism;

[0015] Figure 4 This is a structural diagram of two mounting plates;

[0016] Figure 5 This is a schematic diagram of the cooling mechanism.

[0017] The following are labels in the attached diagram: 1. Support plate; 2. Servo motor; 3. Unwinding shaft; 4. Support rod; 5. Heating box; 6. Mounting plate; 7. Guide roller A; 8. Guide roller B; 9. Support plate A; 10. Support plate B; 11. Exhaust pipe; 12. Support frame; 13. Air duct; 14. Air cooler; 15. Vertical plate; 16. Drive motor; 17. Rewinding roller; 18. Hot-dip galvanized coil. Detailed Implementation

[0018] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. This utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to make the disclosure of this utility model more thorough and complete.

[0019] Example 1

[0020] like Figures 1 to 5 The hot-dip galvanized coil annealing equipment of this utility model includes a support plate 1, a servo motor 2, an unwinding shaft 3, a guiding mechanism, a heating mechanism, a cooling mechanism, and a winding mechanism. The servo motor 2 is fixedly mounted on the support plate 1, and the unwinding shaft 3 is rotatably mounted on the support plate 1. The output end of the servo motor 2 is connected to the unwinding shaft 3. The guiding mechanism is located on the left side of the support plate 1 and has a guiding function. The heating mechanism is located on the left side of the support plate 1 and has a heating function. The cooling mechanism is located on the left side of the heating mechanism and has a cooling function. The winding mechanism has a winding function. When annealing the hot-dip galvanized coil 18, the hot-dip galvanized coil 18 is placed on the unwinding shaft 3, and then the hot-dip galvanized coil 18 is connected to the winding mechanism. Then, the servo motor 2 and the winding mechanism are turned on. The mechanism enables the unwinding shaft 3 and the winding mechanism to operate. When the unwinding shaft 3 rotates, it unwinds the hot-dip galvanized coil 18, causing the hot-dip galvanized coil 18 to unfold into a sheet of hot-dip galvanized steel. This sheet then enters the heating mechanism, which is then turned on to heat the unfolded hot-dip galvanized coil 18 until it reaches the annealing temperature. After a period of time, the servo motor 2 and the winding mechanism are turned on again, allowing the heated hot-dip galvanized steel to slowly cool below the cooling mechanism. Finally, the winding mechanism rewinds the cooled hot-dip galvanized steel. This mechanism can unfold the hot-dip galvanized coil 18 for heating during annealing, resulting in better heating and annealing effects. It is convenient to use and highly practical.

[0021] like Figure 1 , Figure 3 and Figure 4 The heating mechanism includes a support rod 4, a heating box 5, and two sets of mounting plates 6. The heating box 5 is fixedly installed on the upper end of the support rod 4. The heating box 5 has a heating chamber inside, and both ends of the heating box 5 are open. The two sets of mounting plates 6 are fixedly installed on the upper and lower ends of the heating chamber of the heating box 5, respectively. Each set of mounting plates 6 is equipped with multiple sets of electric heating lamps. When heating the unfolded hot-dip galvanized coil 18, the hot-dip galvanized sheet is placed into the heating chamber of the heating box 5. Then, the multiple sets of electric heating lamps on the two sets of mounting plates 6 are turned on to heat the upper and lower parts of the hot-dip galvanized sheet simultaneously until the hot-dip galvanized sheet reaches the annealing temperature. After waiting for a period of time, the heated hot-dip galvanized sheet is then placed into the cooling mechanism for cooling. When heating the hot-dip galvanized sheet, both the upper and lower ends of the hot-dip galvanized sheet can be heated simultaneously, resulting in better heating effect, more uniform heating, and better annealing effect.

[0022] like Figure 1 and Figure 2 The guiding mechanism includes guide roller A7, guide roller B8, support plate A9, and support plate B10. Guide roller A7 and guide roller B8 are located on the left and right sides of the heating box 5, respectively. Guide roller A7 and guide roller B8 are at the same height, with guide roller A7 being higher than the unwinding shaft 3 and guide roller B8 being lower than the winding mechanism. Guide roller A7 and guide roller B8 are rotatably mounted on support plate A9 and support plate B10, respectively. Through the above arrangement, the unfolded hot-dip galvanized coil 18 enters the heating box 5 after being guided by guide roller A7. Then, the hot-dip galvanized coil 18 enters the winding mechanism after passing the lower end of guide roller B8. Since guide roller A7 and guide roller B8 are at the same height, it ensures that the hot-dip galvanized sheet in the heating chamber of the heating box 5 is in a horizontal state, which facilitates the heating of the hot-dip galvanized sheet by the electric heating lamp in the heating chamber of the heating box 5, resulting in a better heating effect.

[0023] like Figure 1 and Figure 5 The cooling mechanism includes an exhaust pipe 11, a support frame 12, an air supply pipe 13, and a cooler 14. The exhaust pipe 11 is fixedly installed on the support frame 12. The lower part of the exhaust pipe 11 is provided with multiple sets of exhaust ports. The input end of the exhaust pipe 11 is connected to the cooler 14 through the air supply pipe 13. When the hot-dip galvanized sheet is heated to the annealing temperature in the heating box 5 and kept at that temperature for a period of time, the hot-dip galvanized sheet is moved below the exhaust pipe 11. Then the cooler 14 is turned on, so that cold air is blown onto the hot-dip galvanized sheet through the air supply pipe 13 and the exhaust pipe 11 in sequence to cool it. The air speed output by the cooler 14 is controlled to ensure that the hot-dip galvanized sheet cools slowly.

[0024] like Figure 1The winding mechanism includes a vertical plate 15, a drive motor 16, and a winding roller 17. The drive motor 16 is fixedly mounted on the vertical plate 15, and the winding roller 17 is rotatably mounted on the vertical plate 15. The input end of the winding roller 17 is connected to the drive motor 16. After the hot-dip galvanized sheet is cooled, it passes the lower end of the guide roller B8 and is wound onto the winding roller 17. Then, the drive motor 16 is turned on to rotate the winding roller 17, thus winding up the annealed hot-dip galvanized sheet. This facilitates the collection of the hot-dip galvanized sheet.

[0025] Example 2

[0026] Based on Example 1, an insulation layer is provided on the outer wall of the heating box 5, and a thermometer is provided on the heating box 5; through the above-mentioned arrangement, heat loss is reduced and it is convenient to monitor the temperature inside the heating chamber of the heating box 5.

[0027] The servo motor 2, heating box 5, exhaust pipe 11, air cooler 14, and winding roller 17 of the hot-dip galvanized coil annealing equipment of this utility model are all purchased from the market. Technical personnel in this industry only need to install and operate them according to the accompanying instruction manual, without requiring any creative work from those skilled in the art.

[0028] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A hot-dip galvanized coil annealing device, comprising a support plate (1), a servo motor (2), and an unwinding shaft (3), wherein the servo motor (2) is fixedly mounted on the support plate (1), and the unwinding shaft (3) is rotatably mounted on the support plate (1), and the output end of the servo motor (2) is connected to the unwinding shaft (3); characterized in that, It also includes a guiding mechanism, a heating mechanism, a cooling mechanism and a winding mechanism. The guiding mechanism is located on the left side of the support plate (1) and has a guiding function. The heating mechanism is located on the left side of the support plate (1) and has a heating function. The cooling mechanism is located on the left side of the heating mechanism and has a cooling function. The winding mechanism has a winding function.

2. The annealing equipment for hot-dip galvanized coils as described in claim 1, characterized in that, The heating mechanism includes a support rod (4), a heating box (5) and two sets of mounting plates (6). The heating box (5) is fixedly installed on the upper end of the support rod (4). A heating chamber is provided inside the heating box (5). Both the left and right ends of the heating box (5) are open. The two sets of mounting plates (6) are fixedly installed on the upper and lower ends of the heating chamber of the heating box (5) respectively. Multiple sets of electric heating lamps are provided on both sets of mounting plates (6).

3. The annealing equipment for hot-dip galvanized coils as described in claim 2, characterized in that, The guiding mechanism includes guide roller A (7), guide roller B (8), support plate A (9) and support plate B (10). Guide roller A (7) and guide roller B (8) are located on the left and right sides of the heating box (5), respectively. Guide roller A (7) and guide roller B (8) have the same height. The height of guide roller A (7) is higher than the height of the unwinding shaft (3), and the height of guide roller B (8) is lower than the height of the winding mechanism. Guide roller A (7) and guide roller B (8) are rotatably mounted on support plate A (9) and support plate B (10), respectively.

4. The annealing equipment for hot-dip galvanized coils as described in claim 1, characterized in that, The cooling mechanism includes an exhaust pipe (11), a support frame (12), an air supply pipe (13), and a cooler (14). The exhaust pipe (11) is fixedly installed on the support frame (12). Multiple exhaust ports are provided at the lower part of the exhaust pipe (11). The input end of the exhaust pipe (11) is connected to the cooler (14) through the air supply pipe (13).

5. The annealing equipment for hot-dip galvanized coils as described in claim 1, characterized in that, The winding mechanism includes a vertical plate (15), a drive motor (16) and a winding roller (17). The drive motor (16) is fixedly mounted on the vertical plate (15), and the winding roller (17) is rotatably mounted on the vertical plate (15). The input end of the winding roller (17) is connected to the drive motor (16).

6. The annealing equipment for hot-dip galvanized coils as described in claim 2, characterized in that, The outer wall of the heating box (5) is provided with a heat insulation layer.

7. The annealing equipment for hot-dip galvanized coils as described in claim 3, characterized in that, A thermometer is installed on the heating box (5).

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