A hot-dip galvanized steel strip coating thickness detection device and use method thereof

Abstract

The present invention relates to the technical field of strip steel thickness detection, and in particular to a hot-dip galvanized strip steel coating thickness detection device and a method of using the same, comprising two side plates, a first conveying device being arranged between the two side plates, the first conveying device being used to convey the strip steel, and further comprising a first thickness detection device being arranged on the two side plates, and being used to detect the galvanized layer of the strip steel; a strip steel shape detection device being symmetrically installed on opposite sides of the two side plates, and being used to monitor the shape of the strip steel during conveying. The present invention provides a corrective pressing component, and when shaking occurs, the two groups of corrective pressing components will respectively clamp the initial position and the end position of the shaking shape of the strip steel, and applying a clamping force helps to stabilize the running trajectory of the strip steel, reduce lateral or longitudinal shaking, and enable the strip steel to move more smoothly on the production line.

Description

Technical Field

[0001] The invention relates to the field of strip steel thickness detection, and in particular to a hot-dip galvanized strip steel coating thickness detection device and a use method thereof. Background Art

[0002] During the processing and production of steel, the surface of the steel needs to be hot-dip galvanized. Hot-dip galvanizing is a process in which molten metal reacts with the iron matrix to produce an alloy layer, thereby combining the matrix and the coating. This method provides protection for the steel surface, improves the corrosion resistance of the steel, and thus extends the service life of the steel.

[0003] In current technical practice, after the strip steel has completed the galvanizing process, the galvanizing layer thickness is usually tested before it leaves the factory to verify whether the coating thickness meets the established standard requirements. However, during this testing process, the strip steel may vibrate or shake due to external interference. This instability will directly affect the accuracy of the test results, which may lead to unreliable data from the first test, and a second test is required to ensure the validity of the data.

[0004] However, existing detection schemes often lack effective measures to suppress or eliminate the jitter phenomenon of the strip during the secondary detection process. The jitter not only increases the complexity of the measurement, but also may introduce additional errors, affecting the reliability of the final detection results. Therefore, developing a technical solution that can effectively control the jitter of the strip during the secondary detection and ensure the stability of the measurement process is of great significance to improving the detection efficiency and accuracy. Summary of the invention

[0005] The purpose of the present invention is to solve the shortcomings of the prior art and to propose a hot-dip galvanized strip steel coating thickness detection device and a method of using the same.

[0006] To achieve the above objectives, in a first aspect, the present invention provides a device for detecting the coating thickness of a hot-dip galvanized steel strip, comprising two side plates, a first conveying device is arranged between the two side plates, the first conveying device is used to convey the steel strip, and further comprising:

[0007] A first thickness detection device, arranged on the two side plates, for detecting the galvanized layer of the steel strip;

[0008] a strip steel shape detection device, symmetrically installed on opposite sides of the two side plates, for monitoring the shape of the strip steel during conveying to determine whether there is an error in the detection result of the first thickness detection device;

[0009] A second thickness detection device, arranged on the two side plates, for performing a secondary detection on the galvanized layer of the steel strip;

[0010] Two sets of correction and pressing components are arranged between the first thickness detection device and the second thickness detection device. When the strip shape detection device detects that the shape of the strip is shaking, they are used to correct the shape of the strip so that the strip can be in a stable shape when it is sent to the second thickness detection device for secondary detection.

[0011] Preferably, the correction and stroking assembly includes a second conveying device and a plurality of correction and stroking assemblies, wherein the plurality of correction and stroking assemblies are arranged on the second conveying device, and the correction and stroking assemblies include:

[0012] a deformation member, disposed on the second conveying device;

[0013] A fixed block, fixedly connected to the deformable member;

[0014] An electric push rod, fixedly connected to the fixed block;

[0015] A clamping block, fixedly connected to the telescopic end of the electric push rod;

[0016] A special-shaped clamping plate, fixedly connected to the clamping block via an elastic member;

[0017] The second conveying device comprises:

[0018] A driving motor, wherein the driving motor is fixedly connected to the side wall of the side plate;

[0019] A first conveying wheel, fixedly mounted on the output shaft of the driving motor;

[0020] A second conveying wheel is rotatably connected to the inner wall of the side plate;

[0021] The conveyor belt is transmission-connected to the surfaces of the first conveyor wheel and the second conveyor wheel, and the deformable member is fixedly mounted on the conveyor belt.

[0022] Preferably, after the second thickness detection device completes the detection, the correction and pressing assembly releases the pressing.

[0023] Preferably: also include:

[0024] A clamping plate, the clamping plate being slidably connected to the side wall of the special-shaped clamping plate;

[0025] A connecting plate, fixedly connected to the side wall of the clamping plate;

[0026] A spring is fixedly connected between the connecting plate and the special-shaped clamping plate.

[0027] Preferably: also include:

[0028] A motor, wherein the motor is fixedly mounted on the clamping block;

[0029] A rotating disk, rotatably connected to the side wall of the clamping block, and the rotating disk is fixedly connected to the output shaft end of the motor;

[0030] A lower pressure rod, fixedly connected to the side wall of the rotating disk;

[0031] The roller is rotatably connected to the outer wall of the lower pressure rod.

[0032] Preferably: also include:

[0033] A yield plate, wherein the yield plate is slidably connected to the clamping plate, a groove is provided on the yield plate, and a return spring is fixedly connected between the groove and the clamping plate;

[0034] A card slot is provided on the top of the yield plate;

[0035] A support rod, the support rod is fixedly connected to the side wall of the rotating disk;

[0036] A baffle, the baffle being fixedly connected to the end of the support rod;

[0037] A card plate, wherein the card plate is slidably connected to the drum, and a side of the card plate close to the rotating disk is provided with an inclined surface;

[0038] Among them, in the process of the roller pressing down on the top of the strip, the rotating disk will also drive the baffle to rotate through the support rod, so that the baffle slides out from the inside of the slot, thereby releasing the restriction on the give way plate, and in the process of the roller movement, it drives the card plate to rotate. During the rotation of the card plate, the inclined surface will contact the give way plate, and under the action of the inclined surface, the give way plate will compress the reset spring to give way. This design is helpful to ensure that when the roller applies pressure to the upper surface of the strip, any surrounding parts will not touch the side of the strip. By avoiding direct contact with the side wall of the strip, the side wall of the strip is effectively prevented from any damage or deformation.

[0039] Preferably, the strip steel shape detection device comprises two camera lenses, and the camera lenses are respectively fixedly mounted on opposite sides of the two side plates.

[0040] In a second aspect, the present invention provides a method for using a hot-dip galvanized strip steel coating thickness detection device, the method comprising the following steps:

[0041] The controller receives first shape information, wherein the first shape information is obtained by detecting the strip shape detection device;

[0042] The controller generates first control information according to the first form information;

[0043] The controller sends the first control information to the electric push rod to control the electric push rod to start pushing out.

[0044] Preferably: also include;

[0045] Acquire movement speed information of the first conveying device and the second conveying device;

[0046] When the speeds of the first conveying device and the second conveying device do not match, the speed of the second conveying device is adjusted to match the speed of the first conveying device.

[0047] Compared with the prior art, the present invention has the following beneficial effects:

[0048] 1. The present invention adopts the setting of the corrective pressing assembly. When shaking occurs, a clamping force is applied to the side wall of the steel strip through two groups of corrective pressing assemblies. The two groups of corrective pressing assemblies will respectively clamp the initial position and the end position of the shaking shape of the steel strip. The portion between the two groups of corrective pressing assemblies is the range that requires secondary inspection. The application of clamping force helps to stabilize the running trajectory of the steel strip, reduce lateral or longitudinal shaking, and make the steel strip move more smoothly on the production line. At the same time, in the process of the steel strip moving toward the second thickness detection device, due to the action of the corrective pressing assembly, the steel strip can present a stable state and be subjected to secondary inspection by the second detection unit to determine whether the galvanized layer of the steel strip meets the relevant requirements.

[0049] 2. The present invention arranges the clamping plate. If the movement speeds of the first conveying device and the second conveying device are inconsistent during the clamping process, the clamping plate will compress the spring through the connecting plate, thereby causing relative displacement between the clamping plate and the special-shaped clamping plate to adapt to the inconsistent movement speeds between the two. The clamping plate will remain relatively still with the steel strip. During this period, the conveying speed of the second conveying device can be adjusted to help prevent relative displacement between the clamping plate and the side wall of the steel strip, thereby causing damage to the galvanized layer of the steel strip.

[0050] 3. The present invention arranges the yield plate and the clamping plate. When the roller presses down on the top of the strip, the rotating disk will also drive the baffle to rotate through the support rod, so that the baffle slides out from the inside of the clamping slot, thereby releasing the restriction on the yield plate, and driving the clamping plate to rotate during the movement of the roller. During the rotation of the clamping plate, the inclined surface will contact the yield plate, and the yield plate will compress the reset spring to yield under the action of the inclined surface. This design is conducive to ensuring that when the roller applies pressure to the upper surface of the strip, no surrounding parts will touch the side of the strip. By avoiding direct contact with the side wall of the strip, the side wall of the strip is effectively prevented from any damage or deformation. BRIEF DESCRIPTION OF THE DRAWINGS

[0051] Figure 1 The figure is a flow chart of the method for using the present invention.

[0052] Figure 2 The overall structure of the detection device of the present invention is shown in FIG. Figure 1 .

[0053] Figure 3 The overall structure of the detection device of the present invention is shown in FIG. Figure 2 .

[0054] Figure 4 The structure diagram of the second conveying device of the present invention is shown in FIG. Figure 1 .

[0055] Figure 5 For the present invention Figure 4 An enlarged schematic diagram of the structure of section A is shown.

[0056] Figure 6 The structure diagram of the second conveying device of the present invention is shown in FIG. Figure 2 .

[0057] Figure 7 For the present invention Figure 6 An enlarged schematic diagram of the structure of part B is shown.

[0058] Figure 8 It is a schematic diagram of the structure of the connection between the clamp block and the motor of the present invention.

[0059] Fig. 9 For the present invention Figure 8 An enlarged schematic diagram of the C-section structure is shown.

[0060] Fig.10 It is a planar cross-sectional view of the clamping plate of the present invention.

[0061] In the figure: 1, side plate; 101, first thickness detection device; 102, second thickness detection device; 2, driving motor; 3, deformation member; 4, fixing block; 5, electric push rod; 6, clamping block; 7, special-shaped clamping plate; 8, clamping plate; 9, connecting plate; 10, spring; 11, motor; 12, rotating disk; 13, pressing rod; 14, roller; 15, giving way plate; 16, slot; 17, supporting rod; 18, baffle; 19, camera; 20, reset spring; 21, elastic member; 22, first conveying wheel; 23, clamping plate; 24, inclined surface; 25, groove; 26, second conveying wheel; 27, conveyor belt. DETAILED DESCRIPTION

[0062] The following description is used to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are only examples, and those skilled in the art may think of other obvious variations.

[0063] Application scenario: Existing detection schemes often lack effective measures to suppress or eliminate the jitter phenomenon of strip steel during secondary detection. Jitter not only increases the complexity of measurement, but also may introduce additional errors, affecting the reliability of the final detection results. Therefore, developing a technical solution that can effectively control the jitter of strip steel during secondary detection and ensure the stability of the measurement process is of great significance to improving detection efficiency and accuracy.

[0064] like Figures 2 to 10 A device for detecting the coating thickness of a hot-dip galvanized steel strip is shown, comprising two side plates 1, a first conveying device is arranged between the two side plates 1, the first conveying device is used to convey the steel strip, and further comprising:

[0065] The first thickness detection device 101 is arranged on the two side plates 1 and is used to detect the galvanized layer of the steel strip;

[0066] The strip shape detection device is symmetrically installed on the opposite sides of the two side plates 1, and is used to monitor the shape of the strip during the conveying process to determine whether there is an error in the detection result of the first thickness detection device 101;

[0067] The second thickness detection device 102 is arranged on the two side plates 1 and is used for secondary detection of the galvanized layer of the steel strip;

[0068] Two sets of correction and pressing components are arranged between the first thickness detection device 101 and the second thickness detection device 102. When the strip shape detection device detects that the strip shape is shaking, the two sets of correction and pressing components are used to correct the strip shape so that the strip can be sent to the second thickness detection device 102 in a stable shape for secondary detection.

[0069] In a specific implementation, the steel strip is conveyed by the first conveying device. During the conveying process, the steel strip will be conveyed by the first conveying device to the position of the first thickness detection device 101. During this process, the steel strip shape detection device will monitor the shape of the steel strip in real time to determine whether the steel strip shakes when it reaches the detection point. If no shaking occurs, the first thickness detection device 101 will normally detect the galvanized layer of the steel strip to determine whether it meets the relevant requirements.

[0070] If shaking occurs, the controller controls two groups of corrective pressing components to apply clamping force to the side walls of the strip. The two groups of corrective pressing components will clamp the initial position and the end position of the shaking shape of the strip respectively. The part between the two groups of corrective pressing components is the range that requires secondary inspection. Applying clamping force helps to stabilize the running trajectory of the strip and reduce lateral or longitudinal shaking, so that the strip can move more smoothly on the production line. At the same time, in the process of the strip moving toward the second thickness detection device 102, due to the action of the corrective pressing components, the strip can present a stable state and be subjected to secondary inspection by the second detection unit to determine whether the galvanized layer of the strip meets the relevant requirements.

[0071] It should be noted that the controller is an external device and is not shown in the figure.

[0072] It needs to be explained again that the first thickness detection device 101 and the second thickness detection device 102 are both existing mature technologies, and a magnetic thickness gauge, an eddy current thickness gauge, etc. can be selected, and no further disclosure is made.

[0073] As a technical optimization solution of the present invention: the correction and stroking assembly includes a second conveying device and a plurality of correction and stroking assemblies, the plurality of correction and stroking assemblies are all arranged on the second conveying device, and the correction and stroking assemblies include:

[0074] A deformation member 3, arranged on the second conveying device;

[0075] A fixed block 4, fixedly connected to the deformable member 3;

[0076] The electric push rod 5 is fixedly connected to the fixed block 4;

[0077] A clamping block 6 is fixedly connected to the telescopic end of the electric push rod 5;

[0078] The special-shaped clamping plate 7 is fixedly connected to the clamping block 6 through the elastic member 21;

[0079] The second conveying device comprises:

[0080] A driving motor 2, wherein the driving motor 2 is fixedly connected to the side wall of the side plate 1;

[0081] The first conveying wheel 22 is fixedly mounted on the output shaft of the driving motor 2;

[0082] The second conveying wheel 26 is rotatably connected to the inner wall of the side plate 1;

[0083] The conveyor belt 27 is transmission-connected to the surfaces of the first conveyor wheel 22 and the second conveyor wheel 26, and the deformable member 3 is fixedly mounted on the conveyor belt 27;

[0084] When the strip shape detection device detects that the shape of the strip steel fluctuates, the electric push rod 5 is first controlled to start and push out, and the electric push rod 5 pushes the clamping block 6 out, and the clamping block 6 drives the special-shaped clamping plate 7 to push toward the side wall of the strip steel, so that the special-shaped clamping plate 7 contacts the side wall of the strip steel, and applies extrusion force to the strip steel through the special-shaped clamping plate 7, so as to stabilize the shaking strip steel. At the same time, the controller controls the driving motor 2 to start, and the driving motor 2 will drive the first conveying wheel 22 to rotate, and then drive the conveyor belt 27 to transmit, and the deformable member 3 will follow the conveyor belt 27 to move, and the deformable member 3 will drive the fixed block 4 to move, and the fixed block 4 will drive the electric push rod 5 to move, and the electric push rod 5 drives the clamping block 6 to move, and the clamping block 6 drives the special-shaped clamping plate 7 to move, and the movement speed of the first conveying device is consistent with that of the second conveying device, so that the special-shaped clamping plate 7 and the strip steel remain relatively still, which is helpful for the strip steel to remain stable under the action of the special-shaped clamping plate 7, which is beneficial for the second thickness detection device 102 to detect;

[0085] In addition, the correction and pressing assembly is arranged behind the first thickness detection device 101. Here, the rear means that after the first thickness detection device 101 detects, the steel strip will continue to be conveyed by the first conveying device. During this process, the steel strip has no external force to deliberately correct it. Due to the elasticity and inertia of the steel strip material, it has the opportunity to adjust itself, reducing the distortion or fluctuation that may occur during the conveying process, thereby achieving a certain degree of natural stability. At this time, the side wall of the steel strip is fixed by the special-shaped clamping plate 7, which helps to keep the steel strip in a normal shape. After the special-shaped clamping plate 7 applies a squeezing force to the side wall of the steel strip, the special-shaped clamping plate 7 will follow the movement of the steel strip under the action of the second conveying device, which is conducive to reducing the friction between the special-shaped clamping plate 7 and the steel strip.

[0086] It should be noted that the deformable member 3 can be made of soft materials such as rubber, so that when the deformable member 3 moves with the conveyor belt 27, it can produce corresponding changes according to the motion trajectory to adapt to the motion trajectory.

[0087] It needs to be explained again that the elastic member 21 is an elastic telescopic rod.

[0088] As a technical optimization solution of the present invention: after the second thickness detection device 102 completes the detection, the correction and pressing component releases the top pressure;

[0089] Specifically, after the side wall of the steel strip is squeezed, the corrective pressure component will move synchronously with the steel strip. After the steel strip is detected by the second detection device, the corrective negative pressure component releases the top pressure on the steel strip.

[0090] As a technical optimization solution of the present invention: it also includes:

[0091] A clamping plate 8, the clamping plate 8 is slidably connected to the side wall of the special-shaped clamping plate 7;

[0092] A connecting plate 9 is fixedly connected to the side wall of the clamping plate 8;

[0093] The spring 10 is fixedly connected between the connecting plate 9 and the special-shaped clamping plate 7;

[0094] In the specific implementation, the above example explains that the first conveying device and the second conveying device maintain a synchronous motion frequency so that the special-shaped clamping plate 7 and the second strip steel remain relatively still, so as to reduce the occurrence of wear caused by relative displacement between the two. However, in actual operation, it is difficult to ensure that the second conveying device can maintain the same conveying speed as the first conveying device after starting.

[0095] Therefore, the special-shaped clamping plate 7 will drive the clamping plate 8 to contact the side wall of the steel strip. If the movement speeds of the first conveying device and the second conveying device are inconsistent during the clamping process, the clamping plate 8 will compress the spring 10 through the connecting plate 9, thereby causing a relative displacement between the clamping plate 8 and the special-shaped clamping plate 7 to adapt to the inconsistent movement speeds between the two. The clamping plate 8 will remain relatively still with the steel strip. During this period, the conveying speed of the second conveying device can be adjusted by the controller to help prevent relative displacement between the clamping plate 8 and the side wall of the steel strip, thereby causing damage to the galvanized layer of the steel strip.

[0096] As a technical optimization solution of the present invention: it also includes:

[0097] The motor 11 is fixedly mounted on the clamping block 6;

[0098] The rotating disk 12 is rotatably connected to the side wall of the clamping block 6, and the rotating disk 12 is fixedly connected to the output shaft end of the motor 11;

[0099] The lower pressing rod 13 is fixedly connected to the side wall of the rotating disk 12;

[0100] The roller 14 is rotatably connected to the outer wall of the lower pressure rod 13;

[0101] In the specific implementation, the above example explains that after the strip is detected to have a shape that does not meet the standard, the special-shaped clamping plate 7 applies a clamping force to the side wall of the strip after a certain delay, so that the strip can adjust itself during this process. However, if the strip continues to shake during the clamping process, the shape may still not meet the standard after clamping.

[0102] Therefore, when the clamping plate 8 follows the movement of the steel strip, the controller will also control the motor 11 to start, the motor 11 drives the rotating disk 12 to rotate, the rotating disk 12 drives the pressing rod 13 to rotate, and the pressing rod 13 drives the roller 14 to press down on the top of the steel strip. By applying a limit to the top of the steel strip, it helps to suppress the irregular vibration of the steel strip in the vertical direction during the transmission process, that is, the up and down shaking. By applying an appropriate amount of downward pressure to the top of the steel strip, the stability of the steel strip during the transmission process can be significantly improved, and the detection error caused by shaking can be reduced, thereby helping to ensure that the second detection is more accurate.

[0103] As a technical optimization solution of the present invention: it also includes:

[0104] The yielding plate 15 is slidably connected to the clamping plate 8, a groove 25 is formed on the yielding plate 15, and a return spring 20 is fixedly connected between the groove 25 and the clamping plate 8;

[0105] A card slot 16 is provided on the top of the yield plate 15;

[0106] A support rod 17, the support rod 17 is fixedly connected to the side wall of the rotating disk 12;

[0107] A baffle 18, the baffle 18 is fixedly connected to the end of the support rod 17;

[0108] A card plate 23, the card plate 23 is slidably connected to the roller 14, and a side of the card plate 23 close to the rotating disk 12 is provided with an inclined surface 24;

[0109] In the specific implementation, the above example explains that the top of the steel strip is limited by the roller 14 to prevent the steel strip from shaking up and down. However, although the top of the steel strip can be limited by the roller 14, the roller 14 may cause relative displacement between the side wall of the steel strip and the clamping plate 8 during the downward pressing process, which may cause damage to the side wall of the steel strip.

[0110] Therefore, the clamping plate 8 will drive the clearance plate 15 to contact the side wall of the steel strip. In the initial state, the baffle 18 is located inside the slot 16, so that the clearance plate 15 cannot push the clearance plate 15 to compress the return spring 20 after contacting the side wall of the steel strip. In the process of the roller 14 pressing down on the top of the steel strip, the rotating disk 12 will also drive the baffle 18 to rotate through the support rod 17, so that the baffle 18 slides out from the inside of the slot 16, thereby releasing the restriction on the clearance plate 15, and in the process of the movement of the roller 14, drive the card plate 23 to rotate. During the rotation of the card plate 23, the inclined surface 24 will contact the clearance plate 15, and under the action of the inclined surface 24, the clearance plate 15 will compress the return spring 20 to make way. This design is conducive to ensuring that when the roller 14 applies pressure to the upper surface of the steel strip, any surrounding parts will not touch the side of the steel strip. By avoiding direct contact with the side wall of the steel strip, the side wall of the steel strip is effectively prevented from being damaged or deformed.

[0111] As a technical optimization solution of the present invention: the strip steel shape detection device includes two camera cameras 19, and the camera cameras 19 are fixedly installed on opposite sides of the two side plates 1 respectively;

[0112] In a specific implementation, the shape of the steel strip is photographed by a camera 19, and the data is sent to an external analysis device, which may be a computer or other electronic device, to analyze the shape of the steel strip to determine whether the shape of the steel strip meets the relevant standards when it reaches the inspection point.

[0113] like Figure 1 A method for using a hot-dip galvanized steel strip coating thickness detection device is shown, and the method comprises the following steps:

[0114] The controller receives first shape information, wherein the first shape information is obtained by detecting the strip shape detection device;

[0115] The controller generates first control information according to the first form information;

[0116] The controller sends the first control information to the electric push rod 5 to control the electric push rod 5 to start pushing out.

[0117] As a technical optimization solution of the present invention: it also includes:

[0118] Acquire movement speed information of the first conveying device and the second conveying device;

[0119] When the speeds of the first conveying device and the second conveying device do not match, the speed of the second conveying device is adjusted to match the speed of the first conveying device.

[0120] Working principle of the present invention:

[0121] The steel strip is conveyed by the first conveying device. During the conveying process, the steel strip is conveyed by the first conveying device to the position of the first thickness detection device 101. During this process, the steel strip shape detection device monitors the shape of the steel strip in real time to determine whether the steel strip shakes when it reaches the detection point. If no shaking occurs, the first thickness detection device 101 normally detects the galvanized layer of the steel strip to determine whether it meets the relevant requirements.

[0122] If shaking occurs, the controller controls two groups of corrective pressing components to apply clamping force to the side walls of the strip. The two groups of corrective pressing components will clamp the initial position and the end position of the shaking shape of the strip respectively. The part between the two groups of corrective pressing components is the range that requires secondary inspection. Applying clamping force helps to stabilize the running trajectory of the strip and reduce lateral or longitudinal shaking, so that the strip can move more smoothly on the production line. At the same time, in the process of the strip moving toward the second thickness detection device 102, due to the action of the corrective pressing components, the strip can present a stable state and be subjected to secondary inspection by the second detection unit to determine whether the galvanized layer of the strip meets the relevant requirements.

[0123] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments, and the above embodiments and descriptions only describe the principles of the present invention. The present invention may be subject to various changes and improvements without departing from the spirit and scope of the present invention, and these changes and improvements fall within the scope of the present invention claimed.

Claims

1. A device for detecting the coating thickness of a hot-dip galvanized steel strip, comprising two side plates (1), a first conveying device being arranged between the two side plates (1), the first conveying device being used for conveying the steel strip, and characterized in that: Also includes: A first thickness detection device (101), arranged on the two side plates (1), and used for detecting the galvanized layer of the steel strip; a strip steel shape detection device, symmetrically mounted on opposite sides of the two side plates (1), and used to monitor the shape of the strip steel during conveyance to determine whether there is an error in the detection result of the first thickness detection device (101); A second thickness detection device (102) is arranged on the two side plates (1) and is used for performing a secondary detection on the galvanized layer of the steel strip; Two sets of correction and pressing components are arranged between the first thickness detection device (101) and the second thickness detection device (102), and are used to correct the shape of the steel strip when the steel strip shape detection device detects that the shape of the steel strip is shaking, so that the steel strip is in a stable shape when it reaches the second thickness detection device (102) for secondary detection; The correction and stroking assembly includes a second conveying device and a plurality of correction and stroking assemblies, wherein the plurality of correction and stroking assemblies are arranged on the second conveying device, and the correction and stroking assemblies include: A deformation member (3) is arranged on the second conveying device; A fixed block (4) fixedly connected to the deformable member (3); An electric push rod (5) fixedly connected to the fixed block (4); A clamping block (6) fixedly connected to the telescopic end of the electric push rod (5); A special-shaped clamping plate (7) fixedly connected to the clamping block (6) via an elastic member (21); The second conveying device comprises: A drive motor (2), the drive motor (2) being fixedly connected to a side wall of the side plate (1); A first conveying wheel (22) is fixedly mounted on the output shaft of the driving motor (2); A second conveying wheel (26) rotatably connected to the inner wall of the side plate (1); The conveyor belt (27) is drivingly connected to the surfaces of the first conveyor wheel (22) and the second conveyor wheel (26), and the deformable member (3) is fixedly mounted on the conveyor belt (27).

2. A device for detecting the thickness of a hot-dip galvanized steel strip coating according to claim 1, characterized in that: After the second thickness detection device (102) completes the detection, the correction and pressing component releases the pressing.

3. The device for detecting the thickness of hot-dip galvanized steel strip coating according to claim 1, characterized in that: Also includes: A clamping plate (8), the clamping plate (8) being slidably connected to the side wall of the special-shaped clamping plate (7); A connecting plate (9) fixedly connected to a side wall of the clamping plate (8); A spring (10) is fixedly connected between the connecting plate (9) and the special-shaped clamping plate (7).

4. A device for detecting the thickness of a hot-dip galvanized steel strip coating according to claim 3, characterized in that: Also includes: A motor (11), the motor (11) being fixedly mounted on the clamping block (6); A rotating disk (12) is rotatably connected to a side wall of the clamping block (6), and the rotating disk (12) is fixedly connected to an output shaft end of the motor (11); A lower pressure rod (13) fixedly connected to a side wall of the rotating disk (12); The roller (14) is rotatably connected to the outer wall of the lower pressing rod (13).

5. A device for detecting the thickness of a hot-dip galvanized steel strip coating according to claim 4, characterized in that: Also includes: a clearance plate (15), the clearance plate (15) being slidably connected to the clamping plate (8), a groove (25) being formed on the clearance plate (15), and a return spring (20) being fixedly connected between the groove (25) and the clamping plate (8); A card slot (16) is provided on the top of the clearance plate (15); A support rod (17), the support rod (17) being fixedly connected to a side wall of the rotating disk (12); a baffle (18), the baffle (18) being fixedly connected to an end of the support rod (17); A clamping plate (23), the clamping plate (23) being slidably connected to the roller (14), and a side of the clamping plate (23) close to the rotating disk (12) is provided with an inclined surface (24).

6. The device for detecting the thickness of hot-dip galvanized steel strip coating according to claim 1, characterized in that: The strip steel shape detection device comprises two camera cameras (19), and the camera cameras (19) are respectively fixedly mounted on opposite sides of the two side plates (1).

7. A method for using a hot-dip galvanized steel strip coating thickness detection device, applicable to a hot-dip galvanized steel strip coating thickness detection device as claimed in any one of claims 1 to 6, characterized in that: The method of use includes the following steps: The controller receives first shape information, wherein the first shape information is obtained by detecting the strip shape detection device; The controller generates first control information according to the first form information; The controller sends the first control information to the electric push rod (5) to control the electric push rod (5) to start pushing out.

8. The method for using the device for detecting the thickness of hot-dip galvanized steel strip coating according to claim 7, characterized in that: Also includes; Acquire movement speed information of the first conveying device and the second conveying device; When the speeds of the first conveying device and the second conveying device do not match, the speed of the second conveying device is adjusted to match the speed of the first conveying device.

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