A heat treatment plate lower surface indentation detection device

Abstract

The utility model discloses a heat treatment plate lower surface pressure pit detection device, including frame and the movable installation in the frame inside several bottom conveying roller, the bottom of frame is equipped with pressure pit detection mechanism, and pressure pit detection mechanism includes inverted n type mounting plate, two groups of light source, industrial camera, strip board, electric sliding rail, sliding plate and laser marker, the utility model has the advantageous effects that through being equipped with pressure pit detection mechanism in the bottom of frame, hoists and mounts heat treatment plate on the bottom conveying roller of frame's several, cooperates two groups of top conveying roller, can drive heat treatment plate to convey to right side, and industrial camera adopts multiple linear array cameras, can splice field of vision, realizes the overall pressure pit detection to heat treatment plate lower surface, and two groups of light source provide stable light, when detecting the pressure pit defect, can through the control laser marker and mark in real time, is convenient for subsequent steel plate surface repair processing.

Description

Technical Field

[0001] This utility model relates to the field of steel plate surface defect detection technology, specifically a device for detecting indentations on the lower surface of a heat-treated plate. Background Technology

[0002] Indentations on the lower surface of heat-treated plates are a common surface defect, especially in the heat treatment of thick plates. This defect not only affects the surface quality of the steel plate but may also affect its mechanical and performance properties. The formation of indentations on the lower surface of heat-treated plates may be related to a variety of factors, including furnace roll nodules, foreign matter such as iron oxide scale and molten slag carried by the steel plate entering the furnace and adhering to the roller surface under high temperature conditions, and unevenness of the lower surface of the steel plate after grinding before entering the furnace.

[0003] An existing patent application (CN 202321975881.X) discloses a device for detecting surface defects in laminated steel sheets. This device uses an electric slider to drive a scanning and detection component mounted on the bottom of a fixed plate in a reciprocating motion, scanning and detecting the laminated steel sheets conveyed on a conveying mechanism. Multiple nozzles mounted on the surface of the air duct spray clean the surface of the laminated steel sheets, preventing impurities adhering to the surface from interfering with the scanning and detection component's ability to scan and detect the surface. However, this detection device cannot detect indentations on the lower surface of the steel sheet, and the detected surface defects cannot be marked in real time, affecting subsequent surface repair treatment. Utility Model Content

[0004] To address the above deficiencies, this utility model provides a device for detecting indentations on the lower surface of heat-treated plates, thereby solving the problem of detecting indentations on the lower surface of steel plates.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A device for detecting indentations on the lower surface of a heat-treated plate includes a frame and several bottom conveying rollers movably installed inside the frame, wherein an indentation detection mechanism is provided at the bottom of the frame.

[0007] The indentation detection mechanism includes an inverted n-shaped mounting plate, two sets of light sources, an industrial camera, a strip plate, an electric slide rail, a sliding plate, and a laser marking device. The inverted n-shaped mounting plate is installed on the bottom left side of the frame, the two sets of light sources are installed on the bottom sides of the inverted n-shaped mounting plate, the industrial camera is installed inside the inverted n-shaped mounting plate, the strip plate is installed at the bottom of the frame and located on the right side of the inverted n-shaped mounting plate, the electric slide rail is installed on the strip plate, the sliding plate is slidably installed on the electric slide rail, and the laser marking device is installed on the sliding plate.

[0008] Furthermore, an electric motor is installed at the front end of the frame, the rotating end of the electric motor is connected to the front end of the bottom conveyor roller on the left side, and adjacent sets of bottom conveyor rollers are connected by a transmission chain.

[0009] Furthermore, two sets of top conveying rollers are movably mounted on the frame, and the two sets of top conveying rollers are staggered with several bottom conveying rollers, and adjacent sets of bottom conveying rollers are connected to the top conveying rollers by a set of transmission gears.

[0010] Furthermore, the industrial camera is located between a set of top conveyor rollers on the left, and the laser marking device is located between a set of top conveyor rollers on the right.

[0011] Furthermore, both light sources use LED light sources, which can provide stable light and can be adjusted as needed to adapt to different shooting environments and requirements.

[0012] Furthermore, the industrial camera employs multiple line scan cameras, combined for detection, to meet the requirements of wide-area and high-precision detection.

[0013] This utility model provides a device for detecting indentations on the lower surface of a heat-treated plate, which has the following advantages: by setting an indentation detection mechanism at the bottom of the frame, the heat-treated plate is suspended on several bottom conveyor rollers of the frame. With the help of two sets of top conveyor rollers, the heat-treated plate can be conveyed to the right. The industrial camera uses multiple line scan cameras, which can stitch together the field of view to realize comprehensive indentation detection on the lower surface of the heat-treated plate. Two sets of light sources provide stable light. When an indentation defect is detected, it can be marked in real time by controlling a laser marking device, which facilitates subsequent steel plate surface repair treatment. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of a device for detecting indentations on the lower surface of a heat-treated plate according to the present invention.

[0015] Figure 2 This is a schematic diagram of the installation position of the inverted n-shaped mounting plate described in this utility model.

[0016] Figure 3 This is a schematic diagram of a set of top conveyor rollers on the left side of this utility model.

[0017] Figure 4 This is a side view of the inverted n-shaped mounting plate of this utility model.

[0018] Figure 5 This is a schematic diagram of the installation position of the strip plate described in this utility model.

[0019] Figure 6 This is a top view of the strip plate described in this utility model.

[0020] In the diagram: 1. Frame; 2. Bottom conveyor roller; 3. Inverted n-shaped mounting plate; 4. Light source; 5. Industrial camera; 6. Strip plate; 7. Electric slide rail; 8. Sliding plate; 9. Laser marking device; 10. Electric motor; 11. Drive chain; 12. Top conveyor roller; 13. Drive gear. Detailed Implementation

[0021] To make the above-mentioned objects, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0022] Please see Figures 1 to 6 As shown in the figure, this application embodiment provides a device for detecting indentations on the lower surface of a heat-treated plate, including a frame 1 and several bottom conveyor rollers 2 movably installed inside the frame 1. An indentation detection mechanism is provided at the bottom of the frame 1. The indentation detection mechanism includes an inverted n-shaped mounting plate 3, two sets of light sources 4, an industrial camera 5, a strip plate 6, an electric slide rail 7, a sliding plate 8, and a laser marking device 9. The inverted n-shaped mounting plate 3 is installed on the bottom left side inside the frame 1. The two sets of light sources 4 are installed on the bottom sides of the inverted n-shaped mounting plate 3. The industrial camera 5 is installed inside the inverted n-shaped mounting plate 3. The strip plate 6 is installed at the bottom of the frame 1 and is located on the right side of the inverted n-shaped mounting plate 3. The electric slide rail 7 is installed on the strip plate 6. The sliding plate 8 is slidably installed on the electric slide rail 7. The laser marking device 9 is installed on the sliding plate 8.

[0023] In this embodiment, the heat treatment plate is first hoisted onto the left side of several bottom conveyor rollers 2 on the frame 1. The bottom conveyor rollers 2 drive the heat treatment plate to move to the right at a uniform speed. When the heat treatment plate passes the n-shaped mounting plate 3, the industrial camera 5 uses multiple line array cameras, which can stitch together the field of view to achieve comprehensive detection of indentations on the lower surface of the heat treatment plate. Two sets of light sources 4 provide stable light and can be adjusted as needed to adapt to different shooting environments and requirements. When the industrial camera 5 detects an indentation defect, it receives the signal and transmits the signal to the external controller. The external controller controls the laser marking device 9 to work and marks the indentation defect on the lower surface of the heat treatment plate in real time, which is convenient for subsequent steel plate surface repair. The electric slide rail 7 can drive the laser marking device 9 to move back and forth, which is convenient for laser marking.

[0024] In some embodiments, a motor 10 is installed at the front end of the frame 1. The rotating end of the motor 10 is connected to the front end of the left bottom conveyor roller 2, and adjacent groups of bottom conveyor rollers 2 are connected by a transmission chain 11 to drive several bottom conveyor rollers 2.

[0025] In some embodiments, two sets of top conveying rollers 12 are movably mounted on the frame 1. The two sets of top conveying rollers 12 are staggered with several bottom conveying rollers 2, and adjacent sets of bottom conveying rollers 2 are connected to the top conveying rollers 12 by a set of transmission gears 13. The two sets of top conveying rollers 12 and several bottom conveying rollers 2 rotate in opposite directions, which can drive the heat treatment plate to be stably conveyed to the right.

[0026] In some embodiments, the industrial camera 5 is located between a set of top conveyor rollers 12 on the left side, which facilitates the industrial camera 5 to detect dents on the lower surface of the heat treatment plate, and the laser marking device 9 is located between a set of top conveyor rollers 12 on the right side, which facilitates the laser marking device 9 to mark dent defects on the lower surface of the heat treatment plate.

[0027] In some embodiments, the two sets of light sources 4 each use LED light sources, which can provide stable light and can be adjusted as needed to adapt to different shooting environments and requirements.

[0028] In some embodiments, the industrial camera 5 employs multiple line scan cameras, combined for detection, to meet the requirements of wide-area and high-precision detection.

[0029] The above technical solution only embodies the preferred technical solution of this utility model. Any changes that may be made by those skilled in the art to certain parts of it embody the principle of this utility model and fall within the protection scope of this utility model.

Claims

1. A device for detecting indentations on the lower surface of a heat-treated plate, comprising a frame (1) and a plurality of bottom conveying rollers (2) movably mounted within the frame (1), characterized in that, The bottom of the frame (1) is provided with a pit detection mechanism; The indentation detection mechanism includes an inverted n-shaped mounting plate (3), two sets of light sources (4), an industrial camera (5), a strip plate (6), an electric slide rail (7), a sliding plate (8), and a laser marking device (9). The inverted n-shaped mounting plate (3) is installed on the bottom left side of the frame (1). The two sets of light sources (4) are installed on the bottom sides of the inverted n-shaped mounting plate (3). The industrial camera (5) is installed inside the inverted n-shaped mounting plate (3). The strip plate (6) is installed at the bottom of the frame (1) and is located on the right side of the inverted n-shaped mounting plate (3). The electric slide rail (7) is installed on the strip plate (6). The sliding plate (8) is slidably installed on the electric slide rail (7). The laser marking device (9) is installed on the sliding plate (8).

2. The device for detecting indentations on the lower surface of a heat-treated plate according to claim 1, characterized in that, The frame (1) is equipped with a motor (10) at the front end. The rotating end of the motor (10) is connected to the front end of the bottom conveyor roller (2) on the left side, and adjacent bottom conveyor rollers (2) are connected by a transmission chain (11).

3. The device for detecting indentations on the lower surface of a heat-treated plate according to claim 1, characterized in that, Two sets of top conveying rollers (12) are movably installed on the frame (1). The two sets of top conveying rollers (12) are staggered with several bottom conveying rollers (2), and adjacent sets of bottom conveying rollers (2) are connected to the top conveying rollers (12) by a set of transmission gears (13).

4. The device for detecting indentations on the lower surface of a heat-treated plate according to claim 3, characterized in that, The industrial camera (5) is located between a set of top conveyor rollers (12) on the left side, and the laser marking device (9) is located between a set of top conveyor rollers (12) on the right side.

5. The device for detecting indentations on the lower surface of a heat-treated plate according to claim 1, characterized in that, The two sets of light sources (4) each use LED light sources.

6. The device for detecting indentations on the lower surface of a heat-treated plate according to claim 1, characterized in that, The industrial camera (5) uses multiple line array cameras.

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