Hot galvanizing strip steel straightening device

Abstract

The utility model provides a hot galvanizing strip steel straightening device which comprises a working table, a bearing frame is fixedly installed on the top of the working table, two horizontal lower straightening rollers are rotatably installed on the bearing frame, a first support is installed on the bearing frame and located above the two lower straightening rollers in the vertical direction in a sliding mode, and a second support is installed on the first support. Upper straightening rollers in the horizontal direction are rotationally installed on the first support and located over the two lower straightening rollers. Through the design of the cleaning mechanism, the first motor is controlled to enable the lower straightening roller fixedly connected with the first motor to rotate, so that when the hot-dip galvanizing strip steel body moves in the direction away from the lower guide roller, the cleaning mechanism cleans fine particles attached to the surface of the hot-dip galvanizing strip steel body, and the cleaning effect is improved; and fine particles cleaned by the cleaning mechanism are treated through the dust removal mechanism, the situation that the fine particles remain on the outer side of the hot-dip galvanized strip steel body is effectively avoided, the cleaning effect is further improved, and the quality of the hot-dip galvanized strip steel is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of hot-dip galvanized strip steel processing equipment, in particular to a hot-dip galvanized strip steel straightening device. Background Art

[0002] Galvanized steel strip is a material that is coated with a layer of zinc to different degrees on a long and narrow steel strip that has been cold-rolled or hot-rolled. Hot-dip galvanizing has the advantages of uniform coating, strong adhesion, and long service life. The hot-dip galvanized steel strip substrate undergoes a complex physical and chemical reaction with the molten plating solution to form a corrosion-resistant zinc-iron alloy layer with a tight structure. The alloy layer is integrated with the pure zinc layer and the steel strip substrate, so it has strong corrosion resistance. In the production process of hot-dip galvanized steel strip, the formed hot-dip galvanized steel strip needs to be straightened to meet the use standards.

[0003] The patent document with authorization number CN220717271U discloses the following content: it includes a base plate, a dust removal mechanism is provided above the base plate, a mounting box is fixed to the upper surface of the base plate, a straightening mechanism is provided above the base plate, four support rods are fixed to the upper surface of the mounting box, the top ends of the four support rods are fixed to the same top plate, four support plates are fixed to the front and rear sides of the four support rods by bolts, the first rotating rod is rotatably connected between the opposite sides of the support plates on the front and rear sides by bearings, a workbench is fixed to the upper surface of the base plate, four fixing rods are fixed to the upper surface of the workbench, four fixing plates are fixed to the upper surface of the workbench, and the second rotating rod is rotatably connected between the opposite sides of the fixing plates on the front and rear sides by bearings. Rod, the top ends of the four fixing rods are fixed with the same load-bearing plate; the dust removal mechanism includes a fan fixed on the upper surface of the bottom plate, the connecting end of the fan is connected with an air inlet pipe, the top plate and the left side of the installation box are fixed with suction heads, a dustproof plate is fixed between the left and right side walls of the inner cavity of the installation box, a mounting plate is fixed horizontally on the front of the workbench, a first motor is fixed on the upper surface of the mounting plate, a connecting rod is fixed on the outer side of the output shaft of the first motor, and two belts are connected to the outer side of the connecting rod; when in use, fine particles attached to the outer side of the hot-dip galvanized strip steel body can be collected to reduce the situation where fine particles are pressed into the inside of the hot-dip galvanized strip steel during straightening work, thereby improving the quality of the hot-dip galvanized strip steel. However, in actual use, the following defects still exist:

[0004] The equipment lacks a cleaning mechanism for cleaning the fine particles attached to the outside of the hot-dip galvanized steel strip body. When collecting the fine particles attached to the outside of the hot-dip galvanized steel strip body, the air in the installation box is simply vacuumed by driving the fan, and the fine particles attached to the outside of the hot-dip galvanized steel strip body are sucked into the inside of the installation box through two suction heads. Although this method can clean some of the fine particles attached to the outside of the hot-dip galvanized steel strip body, some fine particles will still remain on the outside of the hot-dip galvanized steel strip body, and the cleaning effect is poor;

[0005] Therefore, the present application proposes a hot-dip galvanized strip straightening device. Utility Model Content

[0006] In view of the deficiencies in the prior art, the utility model provides a hot-dip galvanized strip steel straightening device, which solves the problems mentioned in the background technology.

[0007] In order to achieve the above objectives, the present invention is implemented through the following technical solutions:

[0008] A hot-dip galvanized strip straightening device comprises a workbench, a carrier frame is fixedly installed on the top of the workbench, two lower horizontal straightening rollers are rotatably installed on the carrier frame, a bracket 1 is slidably installed in a vertical direction on the carrier frame and located above the two lower straightening rollers, upper straightening rollers in a horizontal direction are rotatably installed on the bracket 1 and located directly above the two lower straightening rollers, a motor 1 connected to one of the lower straightening rollers is fixedly installed on the carrier frame, and an electric cylinder for driving the bracket 1 to slide on the carrier frame is fixedly installed on the carrier frame;

[0009] A mounting frame is fixedly installed on the workbench and located on one side of the carrier frame, a lower guide roller is rotatably installed on the mounting frame, the top of the lower guide roller and the tops of the two lower straightening rollers are located on the same horizontal plane, a bracket 2 fixedly connected to the bracket 1 is slidably installed in a vertical direction on the mounting frame and located directly above the lower guide roller, and a horizontal upper guide roller is rotatably installed on the bracket 2;

[0010] A hot-dip galvanized steel strip body is provided between the lower guide roller and the upper guide roller, a cleaning mechanism is installed on the workbench and on the side of the mounting frame away from the supporting frame, which is used to clean fine particles attached to the surface of the hot-dip galvanized steel strip body, and a dust removal mechanism is installed on the workbench and on the side of the cleaning mechanism away from the mounting frame, which is used to process the fine particles cleaned by the cleaning mechanism.

[0011] Further: the cleaning mechanism includes a fixing frame fixedly mounted on the top of the workbench and located on the side of the mounting frame away from the supporting frame, and two horizontal brush rollers are rotatably mounted on the fixing frame. The two brush rollers are located in the same vertical direction, and a driving assembly acting on the two brush rollers is installed on the fixing frame, which is used to make the two brush rollers rotate in opposite directions on the fixing frame.

[0012] Furthermore: the driving component includes a second motor fixedly mounted on a fixed frame, the output shaft of the second motor is connected to one of the brush rollers, and the two brush rollers are connected via a spur gear component.

[0013] Further: the dust removal mechanism comprises:

[0014] There are two dust hoods, and a positioning frame is fixedly installed on the top of the workbench and on the side of the fixed frame away from the mounting frame. Dust hoods are symmetrically fixed on the positioning frame and above and below the hot-dip galvanized strip steel body. A receiving groove with an open side is opened on the workbench, and a sealing plate for sealing the open end of the receiving groove is hinged on the workbench. The sealing plate is fixed to the workbench by a buckle. A connecting pipe connected to the interior of the receiving groove is fixedly installed on the workbench, and the connecting pipe is connected to the two dust hoods through two connecting pipes. A negative pressure component acting on the interior of the receiving groove is installed on the sealing plate, which is used to form negative pressure inside the receiving groove.

[0015] Further: the negative pressure component includes:

[0016] The exhaust fan has a through hole connected to the interior of the accommodating groove on the sealing plate, the exhaust fan is fixedly installed in the through hole, and a filter plate for sealing the through hole is installed on the sealing plate.

[0017] Furthermore: a plug-in frame is fixed on the blocking plate and located outside the through hole, and the filter plate is plugged into the plug-in frame to block the through hole.

[0018] Further: a collection box with an open top is inserted in the containing groove and below the through hole.

[0019] Furthermore: a sealing groove is provided on the sealing plate and outside the opening end of the accommodating groove, and a sealing gasket is inserted into the sealing groove and is clamped with the sealing plate.

[0020] The utility model provides a hot-dip galvanized strip steel straightening device. Compared with the prior art, it has the following beneficial effects:

[0021] 1. Through the design of the cleaning mechanism, the motor is controlled to rotate the lower straightening roller fixed thereto, so that when the hot-dip galvanized steel strip body moves away from the lower guide roller, the cleaning mechanism cleans the fine particles attached to the surface of the hot-dip galvanized steel strip body, thereby improving the cleaning effect. The fine particles cleaned by the cleaning mechanism are processed by the dust removal mechanism, thereby effectively avoiding the situation where fine particles remain on the outside of the hot-dip galvanized steel strip body, further improving the cleaning effect and improving the quality of the hot-dip galvanized steel strip.

[0022] 2. Through the design of the collection box, the particles are filtered by the filter plate, so that the particles remain in the holding tank. When the particles fall under their own gravity, they will fall into the collection box, thereby facilitating the treatment of the particles remaining in the holding tank after filtration;

[0023] 3. Through the design of the sealing gasket, when the sealing plate seals the open end of the receiving groove, the sealing gasket and the workbench form a conflict, thereby increasing the fit between the sealing plate and the workbench and increasing the sealing between the sealing plate and the workbench. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0025] Figure 1 A three-dimensional structural schematic diagram of the utility model is shown;

[0026] Figure 2 The schematic diagram of the installation structure of the motor 1 of the utility model is shown;

[0027] Figure 3 A schematic diagram of the installation structure of the blocking plate of the utility model is shown;

[0028] Figure 4 The utility model is shown Figure 3 The enlarged view of point A in the middle;

[0029] Figure 5 A schematic diagram of the installation structure of the negative pressure assembly of the utility model is shown;

[0030] Figure 6 A schematic diagram of the installation structure of the dust hood of the utility model is shown;

[0031] As shown in the figure: 1. workbench; 11. receiving groove; 12. blocking plate; 121. through hole; 122. plug-in frame; 123. sealing groove; 124. sealing gasket; 13. buckle; 2. bearing frame; 21. lower straightening roller; 22. bracket one; 23. upper straightening roller; 24. motor one; 25. electric cylinder; 3. mounting frame; 31. lower guide roller; 32. bracket two; 33. upper guide roller; 4. hot-dip galvanized strip steel body; 5. cleaning mechanism; 51. fixing frame; 52. brush roller; 53. driving assembly; 531. motor two; 532. spur gear assembly; 6. dust removal mechanism; 61. dust hood; 62. positioning frame; 63. connecting pipe; 64. connecting pipe; 65. negative pressure assembly; 651. exhaust fan; 652. filter plate; 7. collecting box. DETAILED DESCRIPTION

[0032] In order to make the purpose, technical solution and advantages of the embodiments of the utility model clearer, the technical solution in the embodiments of the utility model is described clearly and completely. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0033] Embodiment 1

[0034] In order to solve the technical problems in the background technology, a hot-dip galvanized strip straightening device is provided as follows:

[0035] Combination Figure 1-Figure 6As shown, the utility model provides a hot-dip galvanized strip straightening device, comprising a workbench 1, a carrier frame 2 is fixedly installed on the top of the workbench 1, two lower straightening rollers 21 in a horizontal shape are rotatably installed on the carrier frame 2, a bracket 22 is slidably installed in a vertical direction on the carrier frame 2 and located above the two lower straightening rollers 21, upper straightening rollers 23 in a horizontal direction are rotatably installed on the bracket 22 and located directly above the two lower straightening rollers 21, a motor 24 connected to one of the lower straightening rollers 21 is fixedly installed on the carrier frame 2, and a motor 24 for driving the bracket 22 to move on the carrier frame 2 is fixedly installed on the carrier frame 2. The sliding electric cylinder 25 can make the bracket 22 slide on the carrier 2 through the electric cylinder 25, so as to adjust the distance between the two upper straightening rollers 23 and the two lower straightening rollers 21, so that the equipment is suitable for straightening the hot-dip galvanized strip steel body 4 with different thicknesses; the mounting frame 3 is fixedly installed on the workbench 1 and located on one side of the carrier 2, and the lower guide roller 31 is rotatably installed on the mounting frame 3, and the top of the lower guide roller 31 is located on the same horizontal plane as the top of the two lower straightening rollers 21, and a bracket fixedly connected to the bracket 22 is slidably installed in the vertical direction on the mounting frame 3 and located directly above the lower guide roller 31. The second bracket 32 ​​has an upper guide roller 33 rotatably mounted on it; a hot-dip galvanized steel strip body 4 is arranged between the lower guide roller 31 and the upper guide roller 33. When the hot-dip galvanized steel strip body 4 is straightened, the hot-dip galvanized steel strip body 4 passes between the upper guide roller 33 and the lower guide roller 31, and passes between the two lower straightening rollers 21 and the two upper straightening rollers 23. The electric cylinder 25 is controlled to make the bracket 1 22 slide downward on the carrier 2, so that the two upper straightening rollers 23 and the two lower straightening rollers 21 are in conflict with the hot-dip galvanized steel strip body 4, and the motor 1 24 is controlled to rotate the lower straightening roller 21 fixed thereto. The hot-dip galvanized steel strip body 4 is displaced in the direction away from the lower guide roller 31, so that the hot-dip galvanized steel strip body 4 can be straightened by the two upper straightening rollers 23 and the two lower straightening rollers 21. The upper guide roller 33 and the lower guide roller 31 guide the hot-dip galvanized steel strip body 4. A cleaning mechanism 5 is installed on the workbench 1 and located on the side of the mounting frame 3 away from the supporting frame 2. The cleaning mechanism 5 is used to clean the fine particles attached to the surface of the hot-dip galvanized steel strip body 4. A dust removal mechanism 6 is installed on the workbench 1 and located on the side of the cleaning mechanism 5 away from the mounting frame 3. The dust removal mechanism 6 is used to process the fine particles cleaned by the cleaning mechanism 5.

[0036] Through the design of the cleaning mechanism 5, the motor 24 is controlled to rotate the lower straightening roller 21 fixed thereto, so that when the hot-dip galvanized strip body 4 is displaced away from the lower guide roller 31, the cleaning mechanism 5 cleans the fine particles attached to the surface of the hot-dip galvanized strip body 4 to improve the cleaning effect, and the fine particles cleaned by the cleaning mechanism 5 are processed by the dust removal mechanism 6 to effectively avoid the situation where fine particles remain on the outside of the hot-dip galvanized strip body 4, further improving the cleaning effect and improving the quality of the hot-dip galvanized strip.

[0037] Embodiment 2

[0038] like Figure 1-Figure 6 As shown, based on the above embodiment, this embodiment further provides the following contents:

[0039] In this embodiment, the cleaning mechanism 5 includes a fixed frame 51 fixedly mounted on the top of the workbench 1 and located on the side of the mounting frame 3 away from the supporting frame 2. Two brush rollers 52, both of which are horizontal, are rotatably mounted on the fixed frame 51. The two brush rollers 52 are located in the same vertical direction. Specifically, the bristles on the outside of the two brush rollers 52 fit together. When the hot-dip galvanized steel strip body 4 is guided by the upper guide roller 33 and the lower guide roller 31, the hot-dip galvanized steel strip body 4 passes between the two brush rollers 52. The bristles of the two brush rollers 52 are deformed and fit together with the hot-dip galvanized steel strip body 4. A driving component 53 acting on the two brush rollers 52 is installed on the fixed frame 51, which is used to make the two brush rollers 52 rotate in opposite directions on the fixed frame 51. Specifically, the driving component 53 is used to make the two brush rollers 52 on the fixed frame 51 rotate with the lower guide roller 31 and the upper guide roller 33 The rotation directions are opposite; the driving component 53 includes a second motor 531 fixedly mounted on the fixing frame 51, and the output shaft of the second motor 531 is connected to one of the brush rollers 52, and the two brush rollers 52 are connected via a spur gear component 532. Specifically, the spur gear component 532 includes two mutually meshing spur gears, and the two spur gears are coaxially fixed to the two brush rollers 52 respectively. When in use, the second motor 531 is controlled to be turned on, and the brush roller 52 connected to its output shaft is driven to rotate along the direction of the hot-dip galvanized strip steel body 4 and in the conveying direction away from the hot-dip galvanized strip steel body 4, and the other brush roller 52 is driven by the spur gear component 532 to rotate in the opposite direction, so that the fine particles attached to the outside of the hot-dip galvanized strip steel body 4 are cleaned by the two brush rollers 52, and the fine particles attached to the outside of the hot-dip galvanized strip steel body 4 are cleaned.

[0040] In this embodiment, the dust removal mechanism 6 includes: a dust hood 61, the number of which is two, a positioning frame 62 is fixedly installed on the top of the workbench 1 and located on the side of the fixed frame 51 away from the mounting frame 3, and a dust hood 61 is symmetrically fixed on the positioning frame 62 and located above and below the hot-dip galvanized strip steel body 4. A receiving groove 11 with an open side is opened on the workbench 1, and a blocking plate 12 for blocking the open end of the receiving groove 11 is hinged on the workbench 1, which is convenient for blocking or unblocking the open end of the receiving groove 11. The blocking plate 12 is fixed to the workbench 1 by a buckle 13. The design of the buckle 13 facilitates the fixing or unfixing of the blocking plate 12 to the workbench 1. 1 is fixedly mounted with a connecting pipe 63 connected to the inside of the receiving tank 11, and the connecting pipe 63 is connected to the two dust hoods 61 through two connecting pipes 64. A negative pressure component 65 acting on the inside of the receiving tank 11 is mounted on the blocking plate 12, and is used to form a negative pressure inside the receiving tank 11. When in use, a negative pressure is formed inside the receiving tank 11 through the negative pressure component 65, and external air enters the two connecting pipes 64 through the two dust hoods 61, and then enters the receiving tank 11 through the connecting pipe 63. When the air circulates, the fine particles cleaned from the outside of the hot-dip galvanized strip steel body 4 can be sucked into the receiving tank 11, so as to achieve a treatment effect on the fine particles cleaned by the cleaning mechanism 5.

[0041] In this embodiment, the negative pressure component 65 includes: an exhaust fan 651, a through hole 121 connected to the interior of the receiving tank 11 is opened on the sealing plate 12, the exhaust fan 651 is fixedly installed in the through hole 121, and a filter plate 652 for blocking the through hole 121 is installed on the sealing plate 12. The filter plate 652 adopts a high-efficiency filter. When in use, the exhaust fan 651 is controlled to be turned on. The exhaust fan 651 can be operated to extract the air in the receiving tank 11 through the through hole 121, thereby forming a negative pressure inside the receiving tank 11. During this period, the filter plate 652 filters the air discharged through the through hole 121, so that fine particles in the air remain inside the receiving tank 11, thereby achieving the effect of collecting fine particles in the air.

[0042] Embodiment 3

[0043] like Figure 1-Figure 6 As shown, based on the above embodiment, this embodiment further provides the following contents:

[0044] In this embodiment, a plug-in frame 122 is fixed on the sealing plate 12 and located on the outside of the through hole 121. The filter plate 652 is inserted into the plug-in frame 122 and blocks the through hole 121. Through the design of the plug-in frame 122, the plug-in frame 122 is installed on the sealing plate 12. When the sealing plate 12 is opened, the plug-in frame 122 can be driven to move to the outside of the accommodating groove 11, and the filter plate 652 is inserted into the plug-in frame 122, thereby facilitating the disassembly of the filter plate 652, and facilitating the cleaning and replacement of the filter plate 652.

[0045] In this embodiment, a collecting box 7 with an open top is inserted in the receiving groove 11 and below the through hole 121. Through the design of the collecting box 7, the particles are filtered by the filter plate 652 so that the particles remain in the receiving groove 11. When the particles fall under the action of their own gravity, the particles will fall into the collecting box 7, thereby facilitating the treatment of the particles remaining in the receiving groove 11 after filtering.

[0046] In the present embodiment, a sealing groove 123 is provided on the sealing plate 12 and located on the outer side of the open end of the accommodating groove 11, and a sealing gasket 124 is inserted in the sealing groove 123 and is clamped with the sealing plate 12. The sealing gasket 124 is made of a rubber gasket. Specifically, when the workbench 1 and the sealing plate 12 are fixed by the buckle 13, the sealing gasket 124 is in contact with the workbench 1 and is hidden in the sealing groove 123. Through the design of the sealing gasket 124, when the sealing plate 12 seals the open end of the accommodating groove 11, the sealing gasket 124 is in contact with the workbench 1, thereby increasing the fit between the sealing plate 12 and the workbench 1 and increasing the sealing between the sealing plate 12 and the workbench 1.

[0047] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0048] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A hot-dip galvanized strip straightening device, characterized in that: It comprises a workbench, a carrier frame is fixedly installed on the top of the workbench, two lower horizontal straightening rollers are rotatably installed on the carrier frame, a bracket one is slidably installed in a vertical direction on the carrier frame and located above the two lower straightening rollers, upper straightening rollers in a horizontal direction are rotatably installed on the bracket one and located directly above the two lower straightening rollers, a motor one connected to one of the lower straightening rollers is fixedly installed on the carrier frame, and an electric cylinder for driving the bracket one to slide on the carrier frame is fixedly installed on the carrier frame; A mounting frame is fixedly installed on the workbench and located on one side of the carrier frame, a lower guide roller is rotatably installed on the mounting frame, the top of the lower guide roller and the tops of the two lower straightening rollers are located on the same horizontal plane, a bracket 2 fixedly connected to the bracket 1 is slidably installed in a vertical direction on the mounting frame and located directly above the lower guide roller, and a horizontal upper guide roller is rotatably installed on the bracket 2; A hot-dip galvanized steel strip body is provided between the lower guide roller and the upper guide roller, a cleaning mechanism is installed on the workbench and on the side of the mounting frame away from the supporting frame, which is used to clean fine particles attached to the surface of the hot-dip galvanized steel strip body, and a dust removal mechanism is installed on the workbench and on the side of the cleaning mechanism away from the mounting frame, which is used to process the fine particles cleaned by the cleaning mechanism.

2. A hot-dip galvanized steel strip straightening device according to claim 1, characterized in that: The cleaning mechanism includes a fixing frame fixedly mounted on the top of the workbench and located on the side of the mounting frame away from the supporting frame. Two horizontal brush rollers are rotatably mounted on the fixing frame. The two brush rollers are located in the same vertical direction. A driving component acting on the two brush rollers is installed on the fixing frame, which is used to make the two brush rollers rotate in opposite directions on the fixing frame.

3. A hot dip galvanized steel strip straightening device according to claim 2, characterized in that: The driving assembly comprises a second motor fixedly mounted on a fixing frame, an output shaft of the second motor is connected to one of the brush rollers, and the two brush rollers are connected via a spur gear assembly.

4. A hot dip galvanized steel strip straightening device according to claim 2, characterized in that: The dust removal mechanism comprises: There are two dust hoods, and a positioning frame is fixedly installed on the top of the workbench and on the side of the fixed frame away from the mounting frame. Dust hoods are symmetrically fixed on the positioning frame and above and below the hot-dip galvanized strip steel body. A receiving groove with an open side is opened on the workbench, and a sealing plate for sealing the open end of the receiving groove is hinged on the workbench. The sealing plate is fixed to the workbench by a buckle. A connecting pipe connected to the interior of the receiving groove is fixedly installed on the workbench, and the connecting pipe is connected to the two dust hoods through two connecting pipes. A negative pressure component acting on the interior of the receiving groove is installed on the sealing plate, which is used to form negative pressure inside the receiving groove.

5. A hot dip galvanized steel strip straightening device according to claim 4, characterized in that: The negative pressure component comprises: The exhaust fan has a through hole connected to the interior of the accommodating groove on the sealing plate, the exhaust fan is fixedly installed in the through hole, and a filter plate for sealing the through hole is installed on the sealing plate.

6. A hot dip galvanized steel strip straightening device according to claim 5, characterized in that: A plug-in frame is fixed on the blocking plate and outside the through hole, and the filter plate is plugged into the plug-in frame to block the through hole.

7. A hot dip galvanized steel strip straightening device according to claim 6, characterized in that: A collection box with an open top is inserted in the containing groove and located below the through hole.

8. The hot-dip galvanized steel strip straightening device according to claim 5, characterized in that: A sealing groove is provided on the sealing plate and outside the opening end of the accommodating groove, and a sealing gasket is inserted into the sealing groove and is clamped with the sealing plate.

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