Device for detecting thickness of plate of cold-rolling mill

Abstract

The utility model discloses a device for detecting the thickness of a plate of a cold rolling mill, relates to the field of plate detection, and aims to solve the problems that the quality of subsequent plate finished products is influenced due to the fact that the measured data is easily interfered, the measured result is inaccurate and the measured data is relatively single in the using process of the conventional plate measuring device. A carrying plate is fixedly connected to the machine frame, material conveying rollers are rotationally connected to supports on the two sides of the carrying plate, a plate detection assembly is arranged at the upper end of the carrying plate, a first support is installed between the plate detection assembly and the machine frame, pressing rollers are rotationally connected to the machine frame on the two sides of the first support, and the pressing rollers are arranged on the first support. The device has the advantages that the plate is detected truly through the detection plate, the authenticity of detection data is guaranteed, the thickness difference between the left side and the right side of the plate is detected while the thickness is detected, and the detection data is more comprehensive and reliable.

Description

Technical Field

[0001] The utility model relates to the technical field of plate detection, in particular to a cold rolling mill plate thickness detection device. Background Art

[0002] In the production process of cold-rolled steel plates, accurate detection of plate thickness plays a vital role in ensuring product quality and improving production efficiency. However, traditional plate thickness detection technology faces many difficulties in practical applications.

[0003] Existing cold rolling mill plate thickness detection technology mostly uses irradiation measurement. Although this method is simple and direct, it is often affected by the surface state and dirt of the plate during the actual measurement process, resulting in inaccurate measurement results. When there is oil, rust or other attachments on the surface of the plate, these substances will absorb or reflect part of the irradiated light, thereby interfering with the accurate acquisition of the measurement signal and causing deviations in the measurement results.

[0004] In addition, the traditional irradiation measurement technology has the problem of single measurement data. It can usually only provide thickness information of a certain point of the plate, but cannot compare the thickness of the left and right sides of the plate, so it is impossible to determine the thickness difference between the left and right sides of the same section of the plate. Utility Model Content

[0005] In view of the above situation, in order to overcome the defects of the prior art, the utility model provides a cold rolling mill plate thickness detection device. Through this design, it effectively solves the problems of the existing plate measuring device in that the measurement data is easily disturbed during use, the measurement results are inaccurate, and the measured data is relatively single, which affects the quality of subsequent plate products.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: the utility model comprises a frame, a carrier plate is fixedly connected to the frame, and material conveying rollers are rotatably connected to the brackets on both sides of the carrier plate, a plate detection assembly is provided at the upper end of the carrier plate, a first bracket is installed between the plate detection assembly and the frame, and pressure rollers are rotatably connected to the frames on both sides of the first bracket;

[0007] The plate detection assembly includes a detection plate, a sensing rod is fixedly connected to the first bracket, the sensing rod is slidably connected to the detection plate, a connecting hole is provided in the detection plate, a ball is rollingly connected in the connecting hole, and a sensing hole is provided in the middle of the detection plate.

[0008] Preferably, a first spring is sleeved on the detection plate and the sensing rod in the middle of the first bracket.

[0009] Preferably, a second bracket is provided on both sides of the first bracket, the second bracket is fixedly connected to the frame, and the pressure roller is mounted on the second bracket.

[0010] Preferably, a guide rod is fixedly connected to the second bracket, a fixing frame is slidably connected below the guide rod, a second spring is sleeved on the guide rod on the upper side of the fixing frame, and the pressure roller is rotatably connected to the fixing frame.

[0011] Preferably, the second bracket is fixedly connected with a detector.

[0012] Preferably, a slide is fixedly connected to the detector, the slide is slidably connected to a slide rail, and the slide rail is fixedly connected to the second bracket.

[0013] Compared with the prior art, the utility model has the following outstanding advantages:

[0014] The utility model reflects the thickness of the plate in real time by the lifting and lowering of the detection plate, reduces the interference and ensures the authenticity and accuracy of the detection data. The two balls at the two ends of the bottom of the detection plate can compare and measure the thickness of the two sides of the plate. Whether the two sides of the plate are at the same level by the movement of the balls can be fully understood for the status of the plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0016] Figure 2 It is a schematic diagram of the forward structure of the utility model.

[0017] Figure 3 This is a schematic diagram of the second bracket connection structure of the box of the utility model.

[0018] Figure 4 It is a schematic diagram of the left side structure of the pressing roller of the utility model.

[0019] Figure 5 It is a schematic diagram of the cross-sectional structure of the detection board of the utility model.

[0020] Figure 6 This is a schematic diagram of the connection structure of the detector of the utility model.

[0021] Numbers in the figure: 1. frame; 2. carrier plate; 3. transport roller; 4. plate detection assembly; 401. detection plate; 402. sensing rod; 403. connecting hole; 404. ball bearing; 405. sensing hole; 406. first spring; 5. first bracket; 6. pressure roller; 7. second bracket; 8. guide rod; 9. fixing frame; 10. second spring; 11. detector; 12. slide table; 13. slide rail. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the utility model are clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments; based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0023] Please refer to the attached Figure 1-6 , This embodiment is a cold rolling mill plate thickness detection device: comprising a frame 1, a carrier plate 2 is fixedly connected to the frame 1, and the brackets on both sides of the carrier plate 2 are rotatably connected to material conveying rollers 3, a plate detection component 4 is provided at the upper end of the carrier plate 2, a first bracket 5 is installed between the plate detection component 4 and the frame 1, and pressure rollers 6 are rotatably connected to the frame 1 on both sides of the first bracket 5;

[0024] The frame 1 is fixed in the middle of the assembly line for delivering plates of the cold rolling mill. After the plates pass through the transport rollers 3 and the carrier plate 2 on the frame 1, they are moved outward from the upper end of the transport rollers 3 on the other side. The upper end of the carrier plate 2 is a horizontal structure. The carrier plate 2 and the plate detection assembly 4 and the pressure roller 6 are in a horizontal state. The plate detection assembly 4 and the pressure roller 6 are lifted and lowered vertically. When the thickness of the plate 401 is detected, the plate detection assembly 4 is raised to a height position away from the carrier plate 2. The two pressure rollers 6 are located on the left and right sides of the plate detection assembly 4. The two pressure rollers 6 have the effect of compacting the plate and the carrier plate 2 to ensure that there is a gap between the plate and the carrier plate 2. When the compacted plate passes under the plate detection assembly 4, if the plate detection assembly 4 moves downward, the surface plate is lower than the standard thickness. If the plate detection assembly 4 moves upward, the surface is thicker than the standard thickness.

[0025] The panel detection assembly 4 includes a detection plate 401, a sensing rod 402 is fixedly connected to the first bracket 5, the sensing rod 402 is slidably connected to the detection plate 401, a connecting hole 403 is provided in the detection plate 401, a ball 404 is rollingly connected in the connecting hole 403, and a sensing hole 405 is provided in the middle of the detection plate 401.

[0026] The detection plate 401 of the plate detection assembly 4 is in contact with the upper surface of the plate, and the sensing rod 402 is located on the detection plate 401. The sensing rod 402 is connected to a sensing element to accurately sense the distance that the detection plate 401 moves relative to the sensing rod 402, thereby accurately detecting the thickness change of the plate. Furthermore, since some plates are relatively wide, the thickness of the left and right sides may be different when supported. A ball 404 and a connecting hole 403 are provided on the detection plate 401. The connecting hole 403 is an inverted U-shaped structure. The ball 404 is located in the connecting hole 403. The lower end of the ball 404 protrudes from the ground of the detection plate 401 through the connecting hole 403. When in contact, the two ball bearings on both sides of the detection plate 401 Ball 404 is in contact with the plate. When one side of the plate is higher than the other side, the force exerted by the higher side of the plate on ball 404 becomes greater, and ball 404 exerts force on ball 404 in the through hole, pushing ball 404 to move in the direction of lower plate thickness. The movement of ball 404 is detected by sensing hole 405, and the different thicknesses of the left and right sides of the plate are judged. In addition, after the two balls 404 on both sides of the detection plate 401 reach a force balance, the force exerted by the plate on ball 404 can make ball 404 push the detection plate 401 to move. While feeding back the inclination of the plate, it also feeds back the thickness of the plate, so that the state of the plate can be better understood, and timely adjustments can be made to the subsequently processed plates, thereby improving the quality of the finished plate products.

[0027] When the thickness of the plate is small, in order to ensure the contact between the detection plate 401 and the upper surface of the plate, a first spring 406 that applies downward force to the detection plate 401 is installed on the sensing rod 402. The downward force exerted on the detection plate 401 by the first spring 406 and the self-weight of the detection plate 401 ensure that the detection plate 401 is in contact with the plate at all times, thereby avoiding erroneous detection effects.

[0028] There are two second brackets 7, and the two second brackets 7 are equidistant from the first bracket 5. The pressure roller 6 is placed in a downward manner on the second bracket 7, and the width of the pressure roller 6 is the same as the width of the detection plate 401. A vertically placed guide rod 8 and a fixed frame 9 are provided between the second bracket 7 and the pressure roller 6. The second spring 10 on the guide rod 8 has a downward elastic force on the fixed frame 9. The pressure roller 6 is rotatably installed at the lower end of the fixed frame 9. Through the limiting of the guide rod 8 and the elastic force of the second spring 10, it is ensured that the pressure roller 6 can compact the lower plate and the carrier plate 2, thereby ensuring the fit between the carrier plate 2 and the plate and avoiding errors in detection.

[0029] A detector 11 is installed on the first second bracket 7 along the forward direction of the plate. There are two detectors 11, which are distributed on the front and rear sides of the second bracket 7. Before the plate is detected by the plate detection component 4, the two detectors 11 perform advance detection on the plate. The detector 11 is a photoelectric width and thickness gauge. The device can measure the width and thickness of the plate respectively by adopting the photoelectric measurement principle of the CCD imaging method. After the measurement is completed, the measurement data is compared with the data fed back by the plate detector 11 to obtain a more accurate conclusion. The photoelectric width and thickness gauge is a prior art and will not be introduced in detail here.

[0030] Furthermore, in order to ensure that the detector 11 has a suitable position, a slide 12 and a slide rail 13 are installed between the detector 11 and the second bracket 7, wherein the slide rail 13 is located on the upper side of the second bracket 7, so that the detector 11 can be placed at a certain height to prevent the detector 11 from being accidentally touched. At the same time, the movement of the slide 12 on the slide rail 13 ensures that the detector 11 can work in a suitable position.

[0031] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A cold rolling mill plate thickness detection device, characterized in that: The machine comprises a frame (1), a carrier plate (2) being fixedly connected to the frame (1), and material transport rollers (3) being rotatably connected to brackets on both sides of the carrier plate (2), a plate detection assembly (4) being provided at the upper end of the carrier plate (2), a first bracket (5) being installed between the plate detection assembly (4) and the frame (1), and pressure rollers (6) being rotatably connected to the frame (1) on both sides of the first bracket (5); The panel detection assembly (4) comprises a detection plate (401), a sensing rod (402) is fixedly connected to the first bracket (5), the sensing rod (402) is slidably connected to the detection plate (401), a connecting hole (403) is provided in the detection plate (401), a ball (404) is rollingly connected in the connecting hole (403), and a sensing hole (405) is provided in the middle of the detection plate (401).

2. A cold rolling mill plate thickness detection device according to claim 1, characterized in that: A first spring (406) is sleeved on the detection plate (401) and the sensing rod (402) in the middle of the first bracket (5).

3. A cold rolling mill plate thickness detection device according to claim 1, characterized in that: Second brackets (7) are provided on both sides of the first bracket (5); the second brackets (7) are fixedly connected to the frame (1); and the pressing roller (6) is mounted on the second brackets (7).

4. A cold rolling mill plate thickness detection device according to claim 3, characterized in that: A guide rod (8) is fixedly connected to the second bracket (7), a fixed frame (9) is slidably connected below the guide rod (8), a second spring (10) is sleeved on the guide rod (8) on the upper side of the fixed frame (9), and the pressure roller (6) is rotatably connected to the fixed frame (9).

5. The cold rolling mill plate thickness detection device according to claim 3, characterized in that: The second bracket (7) is fixedly connected to a detector (11).

6. A cold rolling mill plate thickness detection device according to claim 5, characterized in that: The detector (11) is fixedly connected to a slide table (12), the slide table (12) is slidably connected to a slide rail (13), and the slide rail (13) is fixedly connected to the second bracket (7).

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