Thickness measuring device suitable for rolled steel plate

Abstract

The utility model discloses a thickness measuring device suitable for a rolled steel plate, which belongs to the technical field of steel rolling, and comprises two groups of portal frames which are symmetrically and fixedly arranged on a front conveying roller way of a heat treatment furnace up and down, and at least two distance measuring instruments which are respectively arranged at the far ends of the corresponding portal frames and are used for measuring the distance between the steel plate and the portal frames; the portal frame comprises two groups of correspondingly arranged connecting base plates, supporting base frames, telescopic side frames and U-shaped connecting blocks; the supporting base frames are correspondingly fixed to the connecting base plate, the supporting base frames and the telescopic side frames are both of a sectional material structure, and the telescopic side frames are slidably connected into the corresponding supporting base frames. The U-shaped connecting blocks are correspondingly clamped at the top ends of the telescopic side frames; the top ends of the two U-shaped connecting blocks are correspondingly connected with U-shaped adjusting frames, and the U-shaped adjusting frames rotate in the axial direction of the U-shaped adjusting frames through the U-shaped connecting blocks to adjust the installation angle. Through cooperation of the portal frame and the range finder, the installation height and angle of the range finder are adjusted, and the problem of measurement errors of the buckling steel plate is solved.

Description

Technical Field

[0001] This utility model relates to the field of steel rolling technology, and in particular to a thickness measuring device suitable for steel plates, especially suitable for detecting the thickness of curved steel plates. Background Technology

[0002] Stacking steel plates before the heat treatment furnace can lead to serious quality accidents. Existing technology uses a through-beam light curtain rangefinder, but the measurement error is relatively large for warped steel plates. Due to the uneven surface of warped steel plates, traditional rangefinders cannot accurately measure their thickness, and there is an urgent need for a measuring device that can adapt to the deformation of steel plates. Utility Model Content

[0003] Technical problem solved: In view of the technical problems existing in the background art, this utility model provides a thickness measuring device suitable for rolled steel plates. By cooperating with the gantry frame and the rangefinder, the installation height and angle of the rangefinder are adjusted to solve the problem of measurement error of wavy steel plates.

[0004] Technical solution: The present invention provides a thickness measuring device suitable for rolled steel plates, comprising:

[0005] Two sets of gantry frames are symmetrically fixed on the conveyor roller conveyor in front of the heat treatment furnace, one above the other.

[0006] At least two rangefinders are installed at the far end of the corresponding gantry frame to measure the distance between the steel plate and the gantry frame;

[0007] The gantry frame includes two sets of corresponding connecting base plates, support base frames, telescopic side frames, and U-shaped connecting blocks;

[0008] The support base is fixed on the connecting base plate. Both the support base and the telescopic side frame adopt a profile structure. The telescopic side frame is slidably connected in the corresponding support base. The U-shaped connecting block is correspondingly snapped into the top of the telescopic side frame. The tops of the two U-shaped connecting blocks are respectively connected to U-shaped adjustment frames. The U-shaped adjustment frames adjust the installation angle by rotating along their axial direction through the U-shaped connecting blocks.

[0009] Preferably, the support frame is a square profile, which has a first mounting cavity and a second mounting cavity that are connected inside, and the plate connecting the first mounting cavity and the second mounting cavity is recessed inward to form a trapezoidal limiting groove.

[0010] The far-end opposite sidewalls of the first and second mounting cavities are provided with limiting strips along the length of the support frame.

[0011] Preferably, the telescopic side frame includes a first limiting cavity, a second limiting cavity, a third limiting cavity, and a fourth limiting cavity arranged in a square shape;

[0012] The first limiting cavity and the second limiting cavity, the third limiting cavity and the fourth limiting cavity are respectively fixedly connected by reinforcing ribs and a limiting groove is formed on the outside of the reinforcing ribs; the first limiting cavity and the fourth limiting cavity, the second limiting cavity and the third limiting cavity are respectively connected by inwardly recessed plates and form a trapezoidal limiting groove.

[0013] The second and third limiting cavities or the first and fourth limiting cavities of the telescopic side frame are inserted into the first and second mounting cavities of the support base frame, so that the trapezoidal limiting groove of the support base frame cooperates with the trapezoidal limiting groove of the telescopic side frame to achieve sliding limitation, and the limiting strips provided in the first and second mounting cavities of the support base frame are correspondingly engaged in the limiting slots provided at both ends of the telescopic side frame.

[0014] Preferably, the two side rods of the U-shaped connecting block are inserted into the second and third limiting cavities or the first and fourth limiting cavities along the top of the telescopic side frame.

[0015] Preferably, the U-shaped adjustment frame includes a mounting base plate and connecting end plates correspondingly connected to both ends of the mounting base plate;

[0016] The connecting end plate includes two arc-shaped guide grooves arranged vertically along the plate body. Each arc-shaped guide groove is connected to a limiting screw, and the two limiting screws are respectively connected to the two rods of the U-shaped connecting block. This allows the U-shaped adjusting frame to adjust its angle by rotating along the axial direction through the limiting screws, and the U-shaped adjusting frame to be fixedly connected to the U-shaped connecting block by tightening the limiting screws.

[0017] Preferably, the mounting base plate has a plurality of mounting elongated holes along its length, and the rangefinder is adjusted to the mounting position on the mounting base plate through the mounting elongated holes.

[0018] Preferably, the arc-shaped guide groove of the U-shaped adjustment frame cooperates with the limiting screw to finely adjust the incident angle between the rangefinder and the conveyor roller.

[0019] Preferably, the rangefinder is a SICK type through-beam light curtain rangefinder, fixed on the U-shaped adjustment frame.

[0020] Compared with the prior art, the present invention has at least the following beneficial effects:

[0021] 1. This utility model, through its adjustable gantry structure, adapts to steel plates of different sizes and with curved surfaces, thereby improving the accuracy of thickness measurement;

[0022] 2. The gantry frame allows for easy adjustment of the installation height and angle of the U-shaped adjustment frame. Furthermore, the gantry frame possesses high structural strength and stability to enhance the stability of the U-shaped adjustment frame, preventing operational errors in the rangefinder due to vibration. Its modular structure facilitates installation and maintenance, reducing production costs.

[0023] 3. This thickness measuring device can be widely used in steel manufacturing, heat treatment production lines and other fields to effectively prevent stacking accidents and improve production quality and efficiency.

[0024] This invention also has other beneficial effects, which are described in the embodiments section of the specification and will not be repeated here. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the thickness measuring device and conveyor rollers of this utility model in their installation state.

[0026] Figure 2 for Figure 1 Front view of the medium thickness measuring device structure;

[0027] Figure 3 for Figure 2 Schematic diagram of the three-dimensional structure of the middle gantry;

[0028] Figure 4 for Figure 3 Schematic diagram of the connection structure between the middle connecting plate and its supporting base frame;

[0029] Figure 5 for Figure 3 End view of the telescopic side frame structure;

[0030] Figure 6 for Figure 3 Schematic diagram of the connection structure between the telescopic side frame and the U-shaped connecting block;

[0031] Figure 7 for Figure 3 Schematic diagram of the connection structure between the U-shaped adjustment frame and the U-shaped connecting block.

[0032] Figure label:

[0033] 1. Conveyor roller conveyor;

[0034] 2. Gantry; 21. Connecting base plate; 22. Support base frame; 221. First mounting cavity; 222. Trapezoidal limiting groove; 223. Second mounting cavity; 224. Limiting strip; 23. Telescopic side frame; 231. First limiting cavity; 232. Limiting groove; 233. Second limiting cavity; 234. Trapezoidal limiting groove; 235. Third limiting cavity; 236. Reinforcing rib; 237. Fourth limiting cavity; 24. U-shaped connecting block; 25. U-shaped adjusting frame; 251. Mounting base plate; 252. Connecting end plate; 253. Mounting elongated hole; 254. Arc-shaped guide groove; 26. Limiting screw;

[0035] 3. Rangefinder. Detailed Implementation

[0036] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the following will be described in conjunction with the accompanying drawings. Figures 1-7 The technical solutions of the embodiments of this utility model are clearly and completely described below. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the described embodiments of this utility model are within the protection scope of this utility model.

[0037] like Figures 1-2 As shown, this utility model provides a thickness measuring device suitable for rolled steel plates, including two sets of gantry frames 2 and at least two distance measuring instruments. The two sets of gantry frames 2 are symmetrically fixed on the conveyor rollers in front of the heat treatment furnace, and the two distance measuring instruments are respectively installed at the far end of the corresponding gantry frames 2 to measure the distance between the steel plate and the gantry frames. In use, the rolled steel plate passes through the gantry frames 2 via the conveyor rollers 1, and the distance measuring instruments set on the upper and lower sides of the rolled steel plate measure the distance between the steel plate and the gantry frames respectively, and the thickness is calculated by the difference.

[0038] like Figures 2-3 As shown, the gantry 2 includes two sets of correspondingly arranged connecting base plates 21, support base frames 22, telescopic side frames 23, and U-shaped connecting blocks 24. The support base frames 22 are fixedly fixed to the connecting base plates 21. Both the support base frames 22 and the telescopic side frames 23 adopt profile structures, and the telescopic side frames 23 are slidably connected within the corresponding support base frames 22. The U-shaped connecting blocks 24 are correspondingly snapped onto the top of the telescopic side frames 23. The tops of the two U-shaped connecting blocks 24 are correspondingly connected to U-shaped adjustment frames 25, and the installation angle of the U-shaped adjustment frames 25 can be adjusted by rotating along the axial direction of the U-shaped connecting blocks 24. The telescopic side frames 23 can adapt to the measurement of steel plates of different thicknesses, and the U-shaped adjustment frames 25 ensure that the rangefinder is aligned with the surface of the steel plate, so that the thickness can be accurately measured even if it is warped.

[0039] In one specific embodiment, such as Figure 4As shown, the support frame 22 is a square profile, which has a first mounting cavity 221 and a second mounting cavity 223 that are connected inside. The plate connecting the first mounting cavity 221 and the second mounting cavity 223 is recessed inward to form a trapezoidal limiting groove 222. The opposite sidewalls of the far ends of the first mounting cavity 221 and the second mounting cavity 223 are provided with limiting clips 224 along the length direction of the support frame 22.

[0040] In one specific embodiment, such as Figure 5 As shown, the telescopic side frame 23 includes a first limiting cavity 231, a second limiting cavity 233, a third limiting cavity 235, and a fourth limiting cavity 237 arranged in a square shape. The first limiting cavity 231 and the second limiting cavity 233, and the third limiting cavity 235 and the fourth limiting cavity 237 are respectively fixedly connected by reinforcing ribs 236, and a limiting groove 232 is formed on the outer side of the reinforcing ribs 236. The first limiting cavity 231 and the fourth limiting cavity 237, and the second limiting cavity 233 and the third limiting cavity 235 are respectively connected by inwardly recessed plates to form a trapezoidal limiting groove 234. During installation, the second limiting cavity 233 and the third limiting cavity 235 or the first limiting cavity 231 and the fourth limiting cavity 237 of the telescopic side frame 23 are inserted into the first mounting cavity 221 and the second mounting cavity 223 of the support base frame 22, so that the trapezoidal limiting groove 222 of the support base frame 22 cooperates with the trapezoidal limiting groove 234 of the telescopic side frame 23 to achieve sliding limitation, and the limiting clips 224 provided in the first mounting cavity 221 and the second mounting cavity 223 of the support base frame 22 are correspondingly engaged in the limiting slots 232 provided at both ends of the telescopic side frame 23. The telescopic side frame 23 of this structure can be easily adjusted in conjunction with the support base frame 22 to adjust the position of the telescopic side frame 23 within the support base frame 22. The position of the telescopic side frame 23 within the support base frame 22 can be fixed by fixing screws. This allows for easy adjustment of the installation height of the U-shaped adjustment frame 25 connected to the top of the two telescopic side frames 23 and the rangefinder 3 connected to its top. Furthermore, the telescopic side frame 23 and the support base frame 22 of this structure are profile structures, which can be easily assembled.

[0041] In one specific embodiment, such as Figure 6 As shown, the two sides of the U-shaped connecting block 24 are inserted into the cavities of the second limiting cavity 233 and the third limiting cavity 235 or the first limiting cavity 231 and the fourth limiting cavity 237 along the top of the telescopic side frame 23.

[0042] In one specific embodiment, such as Figure 7As shown, the U-shaped adjustment frame 25 includes a mounting base plate 251 and connecting end plates 252 correspondingly connected to both ends of the mounting base plate 251. Multiple mounting elongated holes 253 are formed along the length of the mounting base plate 251. The rangefinder 3 is adjusted to its mounting position on the mounting base plate 251 through the mounting elongated holes 253. The connecting end plates 252 include two arc-shaped guide grooves 254 correspondingly arranged vertically along the plate body. Each arc-shaped guide groove 254 is connected to a limiting screw 26, and the two limiting screws 26 are respectively connected to the two rods of the U-shaped connecting block 24. This allows the U-shaped adjustment frame 25 to adjust its angle by rotating axially through the limiting screws 26, and the U-shaped adjustment frame 25 is fixedly connected to the U-shaped connecting block 24 by tightening the limiting screws 26. The arc-shaped guide grooves 254 and the limiting screws 26 of the U-shaped adjustment frame 25 cooperate to fine-tune the incident angle between the rangefinder and the conveyor roller 1.

[0043] In a preferred embodiment, the rangefinder is a SICK type through-beam light curtain rangefinder, which is fixed on the U-shaped adjustment frame 25.

[0044] The above are preferred embodiments of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A thickness measuring device suitable for rolled steel plates, characterized in that, include: Two sets of gantry frames (2) are symmetrically fixed on the conveyor rollers in front of the heat treatment furnace. At least two rangefinders are installed at the far end of the corresponding gantry (2) to measure the distance between the steel plate and the gantry; The gantry (2) includes two sets of corresponding connecting base plates (21), support base frame (22), telescopic side frame (23) and U-shaped connecting block (24). The support base frame (22) is fixed on the connecting base plate (21). Both the support base frame (22) and the telescopic side frame (23) adopt a profile structure. The telescopic side frame (23) is slidably connected in the corresponding support base frame (22). The U-shaped connecting block (24) is correspondingly snapped into the top of the telescopic side frame (23). The tops of the two U-shaped connecting blocks (24) are correspondingly connected to U-shaped adjustment frames (25). The U-shaped adjustment frames (25) can adjust the installation angle by rotating along their axial direction through the U-shaped connecting blocks (24).

2. The thickness measuring device for rolled steel plates according to claim 1, characterized in that, The support frame (22) is a square profile, which has a first mounting cavity (221) and a second mounting cavity (223) that are connected inside. The plate connecting the first mounting cavity (221) and the second mounting cavity (223) is recessed inward to form a trapezoidal limiting groove (222). The first mounting cavity (221) and the second mounting cavity (223) have limiting strips (224) on their opposite sidewalls at their far ends, along the length of the support frame (22).

3. The thickness measuring device for rolled steel plates according to claim 2, characterized in that, The telescopic side frame (23) includes a first limiting cavity (231), a second limiting cavity (233), a third limiting cavity (235), and a fourth limiting cavity (237) arranged in a square shape. The first limiting cavity (231) and the second limiting cavity (233), the third limiting cavity (235) and the fourth limiting cavity (237) are respectively fixedly connected by reinforcing ribs (236) and a limiting groove (232) is formed on the outside of the reinforcing ribs (236); the first limiting cavity (231) and the fourth limiting cavity (237), the second limiting cavity (233) and the third limiting cavity (235) are respectively connected by inwardly recessed plates and a trapezoidal limiting groove (234) is formed. The second limiting cavity (233) and the third limiting cavity (235) or the first limiting cavity (231) and the fourth limiting cavity (237) of the telescopic side frame (23) are inserted into the first mounting cavity (221) and the second mounting cavity (223) of the support base frame (22), so that the trapezoidal limiting groove (222) of the support base frame (22) cooperates with the trapezoidal limiting groove (234) of the telescopic side frame (23) to achieve sliding limitation, and the limiting strips (224) provided in the first mounting cavity (221) and the second mounting cavity (223) of the support base frame (22) are correspondingly engaged in the limiting slots (232) provided at both ends of the telescopic side frame (23).

4. The thickness measuring device for rolled steel plates according to claim 3, characterized in that, The two sides of the U-shaped connecting block (24) are inserted into the cavity of the second limiting cavity (233) and the third limiting cavity (235) or the first limiting cavity (231) and the fourth limiting cavity (237) along the top of the telescopic side frame (23).

5. The thickness measuring device for rolled steel plates according to claim 4, characterized in that, The U-shaped adjustment frame (25) includes a mounting base plate (251) and connecting end plates (252) corresponding to the two ends of the mounting base plate (251); The connecting end plate (252) includes two arc-shaped guide grooves (254) arranged vertically along the plate body. Each arc-shaped guide groove (254) is connected to a limiting screw (26), and the two limiting screws (26) are respectively connected to the two rods of the U-shaped connecting block (24), so that the U-shaped adjusting frame (25) can be adjusted by rotating along the axis through the limiting screws (26) and the U-shaped adjusting frame (25) can be fixedly connected to the U-shaped connecting block (24) by tightening the limiting screws (26).

6. The thickness measuring device for rolled steel plates according to claim 5, characterized in that, The mounting base plate (251) has a plurality of mounting holes (253) along its length direction. The rangefinder (3) is adjusted to the mounting position on the mounting base plate (251) through the mounting holes (253).

7. The thickness measuring device for rolled steel plates according to claim 6, characterized in that, The arc-shaped guide groove (254) of the U-shaped adjustment frame (25) cooperates with the limiting screw (26) to finely adjust the incident angle between the rangefinder and the conveyor roller (1).

8. The thickness measuring device for rolled steel plates according to any one of claims 1 to 7, characterized in that, The rangefinder is a SICK type through-beam light curtain rangefinder, which is fixed on the U-shaped adjustment frame (25).

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