Hot-rolled coil detection device

Abstract

The utility model discloses a hot-rolled coil plate detection device which comprises a bottom plate and a steel belt arranged on the bottom plate, and further comprises a marking mechanism arranged on a concentric-square-shaped frame and used for marking thickness abnormal points, and the marking mechanism comprises two L-shaped plates fixedly connected to the side, away from the bottom plate, of the concentric-square-shaped frame. A storage box is fixedly connected between the two L-shaped plates, two discharging pipes are fixedly connected to the side, close to the steel belt, of the storage box, and nozzles are arranged at the other ends of the two discharging pipes. According to the utility model, through the arrangement of the marking mechanism, under the action of the extrusion assembly, the marking pigment is sprayed to the thickness abnormal point of the steel belt, so that the thickness abnormal point is marked, a technician can conveniently and quickly find the abnormal point for analysis and take corresponding measures for correction, and the processing efficiency of the thickness abnormal point is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of hot-rolled coil detection, in particular to a hot-rolled coil detection device. Background Art

[0002] Hot rolled coil is a steel plate in coiled form. The hot steel strip coming out of the last rolling mill of the finishing rolling is cooled to the set temperature through laminar flow, and then rolled into a steel strip coil by the coiler. After the steel strip is rolled, its thickness needs to be tested to ensure that the product thickness meets the standard requirements and avoid quality problems caused by thickness deviation, thereby ensuring stable and reliable product quality.

[0003] When using a laser thickness sensor to detect the thickness of the rolled steel strip, although the convenience and accuracy of the thickness detection are guaranteed, it is difficult to mark the abnormal thickness points, which makes it inconvenient for process personnel to quickly find the abnormal points for analysis and take corresponding measures to correct them, thus affecting the efficiency of handling abnormal thickness points.

[0004] Therefore, a hot-rolled coil detection device is urgently needed to solve the above problems. Utility Model Content

[0005] The utility model aims to provide a hot-rolled coil detection device to solve the problem that it is difficult to mark abnormal thickness points proposed in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a hot-rolled coil detection device, comprising a bottom plate and a steel strip arranged on the bottom plate, wherein two driving rollers for driving the steel strip are arranged on one side of the bottom plate close to the steel strip through two fixed plates, and one side of the two fixed plates is connected to a return frame through a connecting plate, and laser thickness sensors are arranged on two inner walls of the return frame close to the steel strip, and also includes a marking mechanism arranged on the return frame for marking abnormal thickness points;

[0007] The marking mechanism includes two L-shaped plates fixedly connected to the side of the return frame away from the bottom plate, a storage box is fixedly connected between the two L-shaped plates, two discharge pipes are fixedly connected to the side of the storage box close to the steel belt, a nozzle is provided at the other end of the two discharge pipes, and an extrusion assembly for extruding the marking pigment in the storage box is provided on the two discharge pipes, and a feeding pipe is provided on the side of the storage box away from the bottom plate.

[0008] The two nozzles are located on both sides of the laser thickness sensor.

[0009] The extrusion assembly includes an extrusion tube fixedly connected to the opposite side of the two discharge tubes, the two extrusion tubes are slidably connected with extrusion rods, one end of the two extrusion rods located inside the extrusion tubes is fixedly connected with an extrusion plate, and the return frame is provided with a driving assembly for driving the two extrusion plates.

[0010] Two one-way valves are arranged in the two discharge pipes, the two one-way valves are located on both sides of the extrusion pipe, and the conducting direction of the two one-way valves is from the storage box to the nozzle.

[0011] The driving assembly includes two symmetrically arranged mounting plates fixedly connected to a side of the return frame close to the material storage box, a driving plate is connected between the two mounting plates via a guide assembly, rotating plates are rotatably connected to opposite sides of the driving plate, the other ends of the two rotating plates are rotatably connected to the extrusion rod, a push rod motor is provided on one of the two mounting plates, and the output end of the push rod motor is connected to the driving plate.

[0012] The guide assembly comprises two guide rods fixedly connected between two mounting plates, the side walls of the two guide rods are slidably connected with guide plates, and one end of the two guide plates is connected to the driving plate.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] The utility model uses the setting of the marking mechanism to spray the marking pigment to the abnormal thickness points of the steel strip under the action of the extrusion component, thereby marking the abnormal thickness points, making it convenient for process personnel to quickly find the abnormal points for analysis and take corresponding measures to correct them, thereby improving the efficiency of processing the abnormal thickness points. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0016] Figure 2 This is a schematic diagram of the steel belt transmission structure of the utility model;

[0017] Figure 3 This is a schematic diagram of the structure of the laser thickness sensor of the utility model;

[0018] Figure 4 This is a schematic diagram of the internal structure of the extrusion component of the utility model;

[0019] Figure 5 for Figure 4 Enlarged view of point A in the middle.

[0020] In the figure: 101, bottom plate; 102, steel belt; 103, fixed plate; 104, transmission roller; 105, connecting plate; 106, return frame; 107, laser thickness sensor; 201, L-shaped plate; 202, storage box; 203, discharge pipe; 204, nozzle; 205, feeding pipe; 301, extrusion tube; 302, extrusion rod; 303, extrusion plate; 304, one-way valve; 401, mounting plate; 403, drive plate; 404, rotating plate; 405, push rod motor; 501, guide rod; 502, guide plate. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] Example 1

[0023] See also Figure 1-Figure 5 , a hot-rolled coil detection device shown in the figure includes a bottom plate 101 and a steel strip 102 arranged on the bottom plate 101, two driving rollers 104 for driving the steel strip 102 are arranged on one side of the bottom plate 101 close to the steel strip 102 through two fixed plates 103, one side of the two fixed plates 103 is connected to a return frame 106 through a connecting plate 105, laser thickness sensors 107 are arranged on two inner walls of the return frame 106 close to the steel strip 102, and a marking mechanism is also included on the return frame 106 for marking abnormal thickness points;

[0024] The marking mechanism includes two L-shaped plates 201 fixedly connected to the side of the return frame 106 away from the bottom plate 101, a material storage box 202 is fixedly connected between the two L-shaped plates 201, two discharge pipes 203 are fixedly connected to the side of the material storage box 202 close to the steel belt 102, a nozzle 204 is provided at the other end of the two discharge pipes 203, and an extrusion assembly for extruding the marking pigment in the material storage box 202 is provided on the two discharge pipes 203, and a feeding pipe 205 is provided on the side of the material storage box 202 away from the bottom plate 101;

[0025] It should be noted here that: through the setting of the marking mechanism, under the action of the extrusion component, the marking pigment is sprayed onto the thickness abnormal points of the steel strip 102, thereby realizing the marking of the thickness abnormal points, making it convenient for process personnel to quickly find the abnormal points for analysis, and take corresponding measures to correct them, thereby improving the efficiency of handling the thickness abnormal points.

[0026] It is worth noting that the laser thickness sensor 107 emits a laser beam and irradiates it on the surface of the steel strip 102, and then receives the laser signal reflected back from the steel strip 102. The receiver inside the sensor receives the reflected light and calculates the time difference from the emission of the laser pulse to the return to the sensor. Combined with the speed of light constant, it accurately calculates the round-trip distance of the laser beam on the surface of the steel strip 102. Since the incident angle of the laser beam is known, the thickness of the steel strip 102 can be further deduced through a trigonometric relationship. This is a prior art and will not be elaborated on here.

[0027] See also Figure 3 , the two nozzles 204 shown in the figure are located on both sides of the laser thickness sensor 107;

[0028] It should be noted here that by arranging the two nozzles 204 on both sides of the laser thickness sensor 107, based on the principle that two points form a line, the accuracy of marking the abnormal thickness point is ensured while reducing the marking position.

[0029] See also Figure 4 and Figure 5 The extrusion assembly shown in the figure includes an extrusion tube 301 fixedly connected to the opposite side of the two discharge tubes 203, and the two extrusion tubes 301 are slidably connected with an extrusion rod 302, and one end of the two extrusion rods 302 located inside the extrusion tube 301 is fixedly connected with an extrusion plate 303, and the return frame 106 is provided with a driving assembly for driving the two extrusion plates 303;

[0030] It should be noted here that the arrangement of the squeezing assembly facilitates the extraction and pushing of the pigment in the storage box 202 .

[0031] See also Figure 4 and Figure 5 , two one-way valves 304 are provided in the two discharge pipes 203 shown in the figure, and the two one-way valves 304 are located on both sides of the extrusion tube 301, and the conducting direction of the two one-way valves 304 is from the storage box 202 to the nozzle 204;

[0032] It should be noted here that by providing two one-way valves 304 and limiting the conduction direction, it is convenient to extract and push the pigment in the storage box 202.

[0033] Working principle: When the thickness of the steel strip 102 is detected, when the steel strip 102 to be detected is transmitted to the return frame 106 through two transmission rollers 104, the upper and lower surfaces of the steel strip 102 are irradiated respectively by the two laser thickness sensors 107 arranged opposite to each other, and the distance between the laser thickness sensor 107 and the upper and lower surfaces of the steel strip 102 to be detected is measured, and then the difference between the two distances is calculated, so as to obtain the thickness of the steel strip 102;

[0034] In the process of detecting the thickness of the steel strip 102, when the thickness is abnormal, the driving assembly is used to push the extrusion plate 303 at one end of the extrusion rod 302 to slide in the extrusion tube 301, so that under the action of the air pressure difference and the one-way blocking action of the two one-way valves 304, the marking pigment in the discharge pipe 203 is squeezed to the nozzle 204, and finally sprayed onto the surface of the steel strip 102, so that the abnormal thickness point is marked, which is convenient for the process personnel to quickly find the abnormal point for analysis and take corresponding measures to correct it, thereby improving the efficiency of processing the abnormal thickness point;

[0035] After marking the abnormal thickness point, the driving component drives the extrusion plate 303 to move in the opposite direction in the extrusion tube 301, so that under the action of the air pressure difference and the one-way blocking action of the two one-way valves 304, the marking pigment in the storage box 202 is sucked into the discharge pipe 203, thereby facilitating the next marking of the abnormal thickness point.

[0036] Example 2

[0037] See also Figure 5 , this embodiment further explains Example 1, the driving assembly in the figure includes two symmetrically arranged mounting plates 401 fixedly connected to the return frame 106 near the side of the storage box 202, a driving plate 403 is connected between the two mounting plates 401 through a guide assembly, and rotating plates 404 are rotatably connected to the opposite sides of the driving plate 403, and the other ends of the two rotating plates 404 are rotatably connected to the extrusion rod 302, and a push rod motor 405 is provided on one of the two mounting plates 401, and the output end of the push rod motor 405 is connected to the driving plate 403;

[0038] It should be noted that: through the setting of the driving assembly, during the process of detecting the thickness of the steel strip 102, when the thickness is abnormal, the laser thickness sensor 107 will send an electrical signal to the controller, so that the push rod motor 405 is started under the action of the controller;

[0039] Under the pushing action of the push rod motor 405 and the guiding action of the guide assembly, the driving plate 403 will be driven to move back and forth. During the reciprocating movement of the driving plate 403, the two rotating plates 404 will be driven to rotate back and forth towards or away from each other, further driving the two extrusion rods 302 to move towards or away from each other. Under the pushing action of the push rod motor 405, not only is it convenient to move the two extrusion rods 302 synchronously, but also the rapidity of pushing the two extrusion rods 302 is guaranteed, thereby ensuring the accuracy of marking the thickness abnormality points.

[0040] See also Figure 4 and Figure 5The guide assembly shown in the figure includes two guide rods 501 fixedly connected between two mounting plates 401, and the side walls of the two guide rods 501 are slidably connected with guide plates 502, and one end of the two guide plates 502 is connected to the driving plate 403;

[0041] It should be noted here that: by setting the guide component, a guiding and limiting function is provided for the movement of the driving plate 403.

[0042] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A hot rolled coil detection device, comprising: A bottom plate (101) and a steel belt (102) arranged on the bottom plate (101), wherein two driving rollers (104) for driving the steel belt (102) are arranged on one side of the bottom plate (101) close to the steel belt (102) through two fixed plates (103), one side of the two fixed plates (103) is connected to a return frame (106) through a connecting plate (105), and laser thickness sensors (107) are arranged on two inner walls of the return frame (106) close to the steel belt (102); It is characterized by further comprising: A marking mechanism disposed on the return frame (106) for marking abnormal thickness points; The marking mechanism comprises two L-shaped plates (201) fixedly connected to a side of the return frame (106) away from the bottom plate (101); a material storage box (202) is fixedly connected between the two L-shaped plates (201); two discharge pipes (203) are fixedly connected to a side of the material storage box (202) close to the steel strip (102); a nozzle (204) is provided at the other end of the two discharge pipes (203); an extrusion assembly for extruding the marking pigment in the material storage box (202) is provided on the two discharge pipes (203); and a feeding pipe (205) is provided on a side of the material storage box (202) away from the bottom plate (101).

2. A hot rolled coil detection device according to claim 1, characterized in that: The two nozzles (204) are located on both sides of the laser thickness sensor (107).

3. A hot rolled coil detection device according to claim 1, characterized in that: The extrusion assembly comprises an extrusion tube (301) fixedly connected to the opposite side of two discharge tubes (203), the two extrusion tubes (301) are slidably connected with extrusion rods (302), one end of the two extrusion rods (302) located inside the extrusion tube (301) is fixedly connected with an extrusion plate (303), and the return frame (106) is provided with a driving assembly for driving the two extrusion plates (303).

4. A hot rolled coil detection device according to claim 3, characterized in that: Two one-way valves (304) are arranged in the two discharge pipes (203), and the two one-way valves (304) are located on both sides of the extrusion tube (301), and the conducting direction of the two one-way valves (304) is from the storage box (202) to the nozzle (204).

5. The hot rolled coil detection device according to claim 3, characterized in that: The driving assembly comprises two symmetrically arranged mounting plates (401) fixedly connected to a side of the return frame (106) close to the material storage box (202); a driving plate (403) is connected between the two mounting plates (401) via a guide assembly; rotating plates (404) are rotatably connected to opposite sides of the driving plate (403); the other ends of the two rotating plates (404) are rotatably connected to the extrusion rod (302); a push rod motor (405) is provided on one of the two mounting plates (401); and the output end of the push rod motor (405) is connected to the driving plate (403).

6. A hot rolled coil detection device according to claim 5, characterized in that: The guide assembly comprises two guide rods (501) fixedly connected between two mounting plates (401), the side walls of the two guide rods (501) are slidably connected with guide plates (502), and one end of the two guide plates (502) is connected to the driving plate (403).

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