Surface detection device for cleaned strip steel

Abstract

The utility model relates to a surface detection device for cleaned strip steel. The surface detection device comprises a swinging bracket and a detection flat plate, the top of the swing support is hinged to the detection flat plate, and the middle of the swing support is movably installed on a guide shaft parallel to the steering roller and can move in the horizontal direction along the guide shaft. Spherical balls are installed at the four corners of the bottom face of the detection flat plate, an elastic supporting structure is arranged in the middle of the bottom face of the detection flat plate, and a positioning clamp used for clamping test paper is installed at the edge of the detection flat plate. The position of the detection flat plate is controlled through the swing support capable of moving along the guide shaft, the detection paper is clamped on the detection flat plate, and a worker records the contact time through a stopwatch during testing, so that the relative stability of each time of testing can be ensured; the stability and accuracy of manual detection are improved through a mechanical structure, the construction cost is low, and operation is convenient; spherical balls used for auxiliary supporting are arranged at the four corners of the detection flat plate, and it is ensured that the detection flat plate is in close contact with the steel belt.

Description

Technical Field

[0001] The utility model belongs to the technical field of metal coating detection devices, in particular to a surface detection device for cleaned strip steel. Background Art

[0002] In the galvanizing production process, the residual oil and iron on the surface of the strip need to be cleaned before annealing to reduce the impact on product quality. In order to ensure the cleaning effect, the general hot-dip galvanizing unit will arrange the cleaning facilities after the looper, so that the strip can maintain a relatively stable speed during the cleaning process and will not fluctuate due to the entrance roll change. However, the problem with this arrangement is that the surface cleaning effect cannot be judged by the original tape sticking method. At present, manual wiping and continuous monitoring are generally used for this. Manual wiping is relatively simple, but it is generally affected by human factors and the test accuracy is low; continuous automatic monitoring requires the purchase of proprietary equipment and the calibration of the equipment, such as the equipment recorded in the utility model of the application number CN201921871030.4, the publication number CN 211235468 U, and the patent name of the strip cleanliness tape test device; this equipment needs to be equipped with an external control system, on the one hand, the initial investment is high, and on the other hand, the overall maintenance and regular debugging costs are high.

[0003] Therefore, it is necessary to design a strip cleanliness monitoring tool that has low construction cost and is easy to operate. Summary of the invention

[0004] The utility model provides a strip steel surface detection device after cleaning to solve the above technical problems, which improves the stability and accuracy of manual detection through a mechanical structure and has the characteristics of low construction cost and convenient operation.

[0005] The utility model includes the following technical solutions: a device for detecting the surface of a steel strip after cleaning, comprising a swing bracket and a detection plate; the top of the swing bracket is hinged to the detection plate, the middle of the swing bracket is movably mounted on a guide shaft parallel to a steering roller and can move in a horizontal direction along the guide shaft; spherical balls are installed at the four corners of the bottom surface of the detection plate, an elastic supporting structure is provided in the middle of the bottom surface of the detection plate, and a positioning clamp for clamping a test paper is installed at the edge of the detection plate.

[0006] Furthermore, a handle is provided in the middle of the swing bracket. The handle is located above the guide shaft and is at a height that is convenient for an adult to hold with both hands, which is about 1-1.2 meters.

[0007] Furthermore, the elastic support structure is a hard high-resilience sponge.

[0008] Furthermore, a rubber pad is provided at the location where the test paper is clamped in the positioning clamp, and the rubber pad is provided to increase the friction between the positioning clamp and the test paper and keep the paper surface flat.

[0009] Furthermore, the positioning clamps are symmetrically arranged outside the two long sides or the two short sides of the detection plate, and the positions of the positioning clamps are set according to the clamping direction of the test paper.

[0010] Furthermore, the steering roller is located above the steel coil, and the staff presses the detection plate on the surface of the steel strip during the detection. The test paper is flatly fixed on the detection plate, and the staff controls the contact time between the test paper and the steel strip according to the production line speed.

[0011] Furthermore, the bottom surface of the elastic support structure is higher than the top of the spherical ball in a natural state, and the spherical ball contacts the steel belt when the detection plate is pressed on the surface of the steel belt, playing an auxiliary supporting role during the test.

[0012] Furthermore, a protective frame is provided between the steel coil and the swing bracket, and a horizontal channel parallel to the guide axis and capable of accommodating the upper part of the swing bracket passing through is provided in the middle of the protective frame.

[0013] Furthermore, the end of the horizontal channel is provided with a paper changing port connected thereto, the long side of the hollow part of the paper changing port is larger than the long side of the detection plate, and the short side of the hollow part is larger than the short side of the detection plate. The detection plate changes the detection paper at the paper changing port.

[0014] Furthermore, both ends of the guide shaft are fixed on the protective frame through mounting shafts.

[0015] The utility model has the following advantages and positive effects:

[0016] 1. The utility model controls the position of the detection plate by a swing bracket that can move along the guide shaft. The detection plate is clamped with detection paper. During the test, the staff records the contact time through a stopwatch to ensure the relative stability of each test. The mechanical structure is used to improve the stability and accuracy of manual detection, with low construction cost and convenient operation.

[0017] 2. The detection plate used in the utility model is provided with spherical balls for auxiliary support at the four corners to ensure the contact degree with the steel belt. The middle main test area is provided with an elastic support structure under the test paper. During the test, the detection plate can maintain close contact with the steel belt whether it is pressed on a flat surface or an arc surface.

[0018] 3. The utility model provides a protective frame between the steel coil and the swing bracket. During testing, the staff is located on the side of the swing bracket, that is, the operating side; the detection plate and the production and processing equipment are located on the side of the steel coil, that is, the equipment side; the protective frame is provided as a partition to ensure the safety of the staff and reduce its impact on the production process. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a schematic diagram of the overall structure of Example 1;

[0020] Figure 2 is a side view of the operating position of Example 1;

[0021] Figure 3 is an enlarged schematic diagram of the bottom surface structure of the detection plate of Example 1;

[0022] Figure 4 is an enlarged schematic diagram of the bottom surface structure of the detection plate of Example 2;

[0023] In the figure, 1-steel coil; 2-steering roller; 3-guide shaft; 4-swing bracket; 401-handle; 5-detection plate; 501-spherical ball; 502-elastic support structure; 6-steel belt; 7-protective frame; 701-horizontal channel; 702-paper changing port; 8-positioning clamp; 9-test paper; 10-installation shaft. DETAILED DESCRIPTION

[0024] In order to further disclose the content, features and effects of the invention, the following examples are specifically cited and described in detail in conjunction with the accompanying drawings. In the description of the following embodiments, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, which are only for the convenience of describing this patent and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this patent.

[0025] In the description of the following embodiments, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "set" should be understood in a broad sense, for example, it can be fixedly connected or set, or it can be detachably connected or set, or connected or set in one piece. For ordinary technicians in this field, the specific meanings of the above terms in this patent can be understood according to specific circumstances.

[0026] Example 1: See attached Figure 1-3, a strip steel surface inspection device after cleaning, comprising a swing bracket 4 and an inspection plate 5; the top of the swing bracket 4 is hinged with the inspection plate 5, the middle of the swing bracket 4 is movably mounted on a guide shaft 3 parallel to the steering roller 2 and can move in the horizontal direction along the guide shaft 3; the middle of the swing bracket 4 is also provided with a handle 401, the handle 401 is located above the guide shaft 3, and is at a height convenient for an adult to hold with both hands, about 1-1.2 meters. This manually controlled mechanical structure has low construction cost and convenient operation.

[0027] Spherical balls 501 are installed at the four corners of the bottom surface of the detection plate 5, and an elastic support structure 502 is provided in the middle of the bottom surface of the detection plate 5, and the elastic support structure 502 is a hard high-rebound sponge. The bottom surface of the elastic support structure 502 is higher than the vertex of the spherical ball 501 in a natural state. When the detection plate 5 is pressed on the surface of the steel belt 6, the spherical ball 501 contacts the steel belt 6, which plays an auxiliary supporting role in the test process. A positioning clamp 8 for clamping the test paper 9 is installed at the edge of the detection plate 5. A rubber pad is provided at the clamping position of the test paper 9 in the positioning clamp 8, and the rubber pad is provided to increase the friction between the test paper 9 and keep the paper surface flat. The positioning clamp 8 is symmetrically arranged on the outside of the two long sides of the detection plate 5, and the position of the positioning clamp 8 is set according to the clamping direction of the test paper 9.

[0028] A protective frame 7 is provided between the steel coil 1 and the swing bracket 4, and a horizontal channel 701 is provided in the middle of the protective frame 7, which is parallel to the guide shaft 3 and can accommodate the upper part of the swing bracket 4. A paper changing port 702 connected to the horizontal channel 701 is provided at the end thereof, and the long side of the hollow part of the paper changing port 702 is larger than the long side of the detection plate 5, and the short side of the hollow part is larger than the short side of the detection plate 5. The detection plate 5 replaces the detection paper 9 at the paper changing port 702. Both ends of the guide shaft 3 are fixed to the protective frame 7 by the mounting shaft 10. During testing, the staff is located on one side of the swing bracket 4, that is, the operating side; the detection plate 5 and the production and processing equipment are located on one side of the steel coil 6, that is, the equipment side. The protective frame 7 is provided to separate people from the main equipment, and divide it into the operating side and the equipment side, which not only ensures the safety of the staff, but also reduces the impact of the staff on the production process.

[0029] The steering roller 2 is located above the steel coil 1. During testing, the staff presses the testing plate 5 on the surface of the steel strip 6. The test paper 9 is flatly fixed on the testing plate 5. The staff controls the contact time between the test paper and the steel strip 6 according to the production line speed to ensure the relative stability of each test.

[0030] The correspondence between contact time and production line speed is shown in the following table:

[0031]

[0032] Embodiment 2: A strip steel surface detection device after cleaning, the other structures are basically the same as those of embodiment 1, and the specific structure of the detection plate 5 is shown in the attached Figure 4 The positioning clips 8 are symmetrically arranged outside the two short sides of the detection plate 5. In this example, four small clips are used to clamp the test paper 9 from both ends of the side, and two large clips can also be used to clamp the test paper 9 from the middle of the side.

[0033] Although the preferred embodiments of the utility model are described above, the utility model is not limited to the above specific embodiments, which are merely illustrative and not restrictive. Under the enlightenment of the utility model, ordinary technicians in this field can make many forms without departing from the purpose of the utility model and the scope of protection of the claims. All of these belong to the protection scope of the utility model.

Claims

1. A strip steel surface detection device after cleaning, characterized in that: It comprises a swing bracket and a detection plate; the top of the swing bracket is hinged with the detection plate, the middle of the swing bracket is movably mounted on a guide shaft parallel to the steering roller and can move in the horizontal direction along the guide shaft; spherical balls are mounted at the four corners of the bottom surface of the detection plate, an elastic supporting structure is arranged in the middle of the bottom surface of the detection plate, and a positioning clamp for clamping the test paper is mounted at the edge of the detection plate.

2. The device for detecting the surface of a steel strip after cleaning according to claim 1, characterized in that: A handle is also provided in the middle of the swing bracket, and the handle is located above the guide shaft.

3. The device for detecting the surface of a steel strip after cleaning according to claim 1, characterized in that: The elastic supporting structure is a hard high-resilience sponge.

4. The device for detecting the surface of a steel strip after cleaning according to claim 1, characterized in that: A rubber pad is provided in the positioning clamp where the test paper is clamped.

5. The device for detecting the surface of a steel strip after cleaning according to claim 4, characterized in that: The positioning clamps are symmetrically arranged outside the two long sides or the two short sides of the detection plate.

6. The device for detecting the surface of a steel strip after cleaning according to claim 1, characterized in that: The steering roller is located above the steel coil, and during testing, the staff presses the testing plate onto the surface of the steel strip.

7. The device for detecting the surface of a steel strip after cleaning according to claim 6, characterized in that: The bottom surface of the elastic support structure is higher than the top point of the spherical ball in a natural state, and the spherical ball contacts the steel belt when the detection plate is pressed on the surface of the steel belt.

8. A strip steel surface detection device after cleaning according to any one of claims 6-7, characterized in that: A protection frame is arranged between the steel coil and the swing bracket, and a horizontal channel which is parallel to the guide shaft and can accommodate the upper part of the swing bracket passing through is arranged in the middle of the protection frame.

9. The device for detecting the surface of a steel strip after cleaning according to claim 8, characterized in that: The end of the horizontal channel is provided with a paper changing port connected thereto, the long side of the hollow part of the paper changing port is larger than the long side of the detection plate, and the short side of the hollow part is larger than the short side of the detection plate.

10. The device for detecting the surface of cleaned steel strip according to claim 8, characterized in that: The two ends of the guide shaft are fixed on the protection frame through the mounting shaft.

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