Plate six-surface dynamic detection system

Through dynamic detection technology of multi-camera components and conveyor belt system, the problem that existing equipment can only detect double-sideds is solved, and efficient detection of six-sided panels is achieved, which improves detection efficiency and adaptability.

CN119223164APending Publication Date: 2024-12-31NANJING HAIYAN TECH CO LTD
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Patent Information

Application Number
CN202411562936.3
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-11-05
Publication Date
2024-12-31

AI Technical Summary

Technical Problem

Existing board inspection equipment can only detect the double-sided surface of the board and cannot meet the inspection requirements of hexahedral structural boards, resulting in low detection efficiency and inability to meet the board inspection requirements.

Method used

A six-sided dynamic detection system for plates is designed, using multi-camera components and conveyor belt system, and the image information of six-sided plates is collected in real time through computer drive and control equipment to realize dynamic detection and adapt to plate inspection of different sizes and models.

Benefits of technology

It realizes efficient acquisition of image information in the motion state of the board, improves detection efficiency, meets the six-sided detection requirements of the board, and reduces the detection cost and complexity.

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Patent Text Reader

Abstract

The invention discloses a plate six-surface dynamic detection system which is characterized in that a working bin is arranged at the upper part of an equipment main frame, a first conveyor belt and a second conveyor belt are sequentially arranged on a base bracket from front to back, and the working bin is arranged above the first conveyor belt; a background module is arranged between the first conveying belt and the second conveying belt, a sixth camera assembly is arranged on the base bracket, and a sixth light source assembly is arranged beside the sixth camera assembly. A first camera assembly, a second camera assembly to a fifth camera assembly and a first light source assembly, a second light source assembly to a fifth light source assembly are fixedly arranged in the working bin, the first camera assembly to the sixth camera assembly are electrically connected with the computer driving equipment, and the first light source assembly to the sixth light source assembly are electrically connected with the computer driving equipment. The device is suitable for detection of plates of different sizes and models, dynamic detection of the plates is achieved, and the detection efficiency is high.
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Description

Technical Field

[0001] The present invention belongs to the field of visual inspection technology, and in particular relates to plate inspection technology equipment, specifically a plate six-side dynamic inspection system. Background Art

[0002] Measuring the size and surface defects of boards is a necessary step in quality control of boards. The current furniture industry has increasingly higher requirements for the accuracy of board size and surface defect verification. In the past, people usually measured the size manually and observed the surface defects with the naked eye. The measurement accuracy was limited, and it was easy to miss defects. The labor intensity was high, the work efficiency was low, and the production cost of the enterprise was high.

[0003] With the development and maturity of random machine vision inspection technology, the detection of plate size and defects through machine vision has become a development trend in the field of plate inspection technology. In traditional plate inspection technology, the inspection of plates includes the front and back surfaces of the plates. However, the plates are hexahedral structures, and there may be defects on each surface of the plates. Traditional inspection machines can only meet the requirements of double-sided inspection, but cannot observe the six surfaces of the plates. Patent CN107966102A discloses a six-sided inspection device for plate production, which sets CCD cameras at corresponding positions on the front, back, top, bottom, left, and right sides of the plate to obtain images of the six surfaces of the plate, and then obtain the contour parameters of the plate by calculation. However, this patent is a static detection method, that is, when the upper and lower surfaces of the plate are detected, the conveyor belts 1-5 stop running and the plate is stationary. This results in the CCD cameras on the upper, lower, left and right sides being fixedly set in the middle position of the belt conveyor mechanism. During the image acquisition process, since the distance between the CCD camera and the plate and the relative position with the plate are fixed, the shooting range of the CCD camera is limited. When the length of the plate is long, the image acquired by the CCD camera cannot cover the entire surface of the plate, resulting in a detection blind spot, and the obtained parameters are prone to deviation values. Chinese patent CN 112362667 A discloses an improved six-sided detection device for plate production, which uses a four-sided rotating detection mechanism to drive the camera to achieve the purpose of detecting the four surfaces of the plate with a single camera, thereby reducing costs. When these two devices detect the plate, the plate is static, resulting in low plate detection efficiency and failure to meet plate detection requirements. Summary of the invention

[0004] The purpose of the present invention is to solve the problem that when current equipment detects plates, the plates are all static, resulting in low plate detection efficiency and failure to meet plate detection requirements.

[0005] In order to achieve the above-mentioned purpose, the technical solution adopted by the present invention is: a six-sided dynamic detection system for a plate, comprising an equipment main frame, a base bracket and a computer-driven control device, the upper part of the equipment main frame is provided with a working bin, the base bracket runs through the lower part of the equipment main frame, the base bracket is provided with a first conveyor belt and a second conveyor belt in sequence in front and back, and the working bin is arranged above the first conveyor belt; there is a working distance between the first conveyor belt and the second conveyor belt and a background module is provided, the base bracket is provided with a sixth camera assembly for shooting the back image of the plate, and the side of the sixth camera assembly is provided with a sixth light source assembly for filling light toward the background module; along the conveying direction of the plate, a first camera assembly for shooting the front and side images of the plate and a second camera assembly for shooting the rear and side images of the plate are fixedly provided in the working bin in sequence in front and back, a first light source assembly for filling light to the front and side of the plate during shooting is fixedly provided next to the first camera assembly, and a sixth light source assembly for filling light to the front and side of the plate during shooting is fixedly provided next to the first camera assembly. A second light source assembly is fixedly installed next to the second camera assembly for supplementary lighting for the rear side of the plate during shooting; a linear module and a motor driving the linear module are fixedly provided in the working chamber, the moving part of the linear module can move horizontally along the width direction of the plate and is fixedly connected with a third camera assembly and a third light source assembly for photographing a side image of the plate; a fourth camera assembly and a fourth light source assembly for photographing the other side image of the plate are fixedly connected to the fixed part on one side of the conveyor belt; a fifth camera assembly for photographing the top surface image of the plate is fixedly connected to the top of the equipment main frame in the working chamber, and a fifth light source assembly for supplementary lighting for the top surface of the plate during shooting is suspended and fixedly connected next to the fifth camera assembly; the first camera assembly to the sixth camera assembly are all electrically connected to the computer drive device, the first light source assembly to the sixth light source assembly are all electrically connected to the computer drive control device, and the first conveyor belt, the second conveyor belt and the motor are all electrically connected to the computer drive control device.

[0006] Compared with the prior art, the beneficial effects of the present invention are: the six camera components can collect image information of the plate when the plate is in motion, and can realize collection in multiple directions, and transmit the collected image information to the computer system for analysis, detect the size and defects of the plate, the equipment is easy to assemble, suitable for the detection of plates of different sizes and models, and has high detection efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0007] Figure 1 Shown is the overall structural diagram of the present invention.

[0008] Figure 2 Shown is a structural diagram of the main device of the present invention.

[0009] Figure 3 Shown is the internal structure diagram of the main device of the present invention.

[0010] Figure 4Shown is a partial structural diagram of the method of the present invention.

[0011] Figure 5 Shown is an installation diagram of the first camera assembly and the second camera assembly of the present invention.

[0012] Figure 6 Shown is an installation diagram of the third camera assembly of the present invention.

[0013] Figure 7 Shown is an installation diagram of the fourth camera assembly of the present invention.

[0014] Figure 8 Shown is a structural installation diagram of the background component of the present invention.

[0015] Fig. 9 Shown is a structural diagram of a sixth camera assembly of the present invention.

[0016] Fig.10 Shown is the overall structure diagram of the plate detection system of the second and third embodiments of the present invention.

[0017] Fig.11 Shown is a structural diagram of a plate straightening assembly according to a second embodiment of the present invention.

[0018] Among them, the main frame of the equipment 1, the working chamber 1-2, the linear module 1-3, the base bracket 1-4, the conveyor belt 1-5, the second conveyor belt 1-6 , linear module mounting frame 1-61, second linear module 1-62, guide member 1-63, push rod assembly 1-64, adapter 1-641, push rod 1-642, rotating member 1-643, background module 1-7, first bracket 1-71, second bracket 1-72, background belt bracket 1-73, background belt 1-74, shading plate 1-75, second camera assembly 2, first camera assembly 3, third camera assembly 4-1, third light source assembly 4-11, third camera bracket 4-12, first light source bracket 4-13, fourth camera assembly 4-2, fourth light source assembly 4-21, fourth camera bracket 4-22, second light source bracket 4-23, fifth camera assembly 5, fifth light source assembly 5-1, auxiliary frame 6, support foot assembly 6-1, touch screen hanging box 7, touch screen 8, slide 9-1, angle adjuster 9-2, connecting plate 9-3, camera seat 9-4, plate identification code scanning assembly 10. DETAILED DESCRIPTION

[0019] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. It should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be the internal connection of two components. In this embodiment, the directions such as "up", "down", "left", "right", "front", and "back" mentioned are understood in terms of the drawings in the specification or the actual working posture of the equipment. The definitions of "first, second", etc. do not refer to quantities, but are used to distinguish different components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0020] The front in this embodiment is the direction in which the plates are transported out, and the rear in this embodiment is the direction in which the plates are transported in. This embodiment is understood by referring to this direction standard.

[0021] Existing plate detection equipment detects plates when the plates are static, resulting in low plate detection efficiency and failing to meet plate detection efficiency requirements. This embodiment aims to provide a plate detection image acquisition device and a plate detection system to solve the problem of low plate detection efficiency.

[0022] Example 1, Reference Figure 1-Figure 11A six-sided dynamic detection system for plates comprises an equipment main frame 1, a base bracket 1-4 and a computer-driven control device. The equipment main frame 1 is constructed of steel metal parts of various shapes, which plays a role in installing and supporting equipment parts. The upper part of the equipment main frame 1 is provided with a working bin 1-2, and the outer periphery of the working bin 1-2 is encapsulated by sheet metal parts. The working bin is used to install equipment parts and provide space for plate detection. The lower part of the equipment main frame 1 is provided with a clearance channel, and the base bracket 1-4 runs through the clearance channel at the lower part of the equipment main frame 1. The base bracket 1-4 is provided with a first conveyor belt 1-5 and a second conveyor belt 1-6 in sequence in front and back. The working bin 1-2 is arranged above the first conveyor belt 1-5, and the plate is conveyed in the working bin 1-2 along the plate conveying direction. A first camera assembly 3 for photographing the front and side images of the plate and a second camera assembly 2 for photographing the rear and side images of the plate are fixedly arranged in sequence at the front and rear; a first light source assembly for supplementing the front and side images of the plate during photographing is fixedly arranged next to the first camera assembly 3; a second light source assembly for supplementing the rear and side images of the plate during photographing is fixedly arranged next to the second camera assembly 2; the first camera assembly 3 and the first light source assembly are connected to the main frame 1 of the device via a first camera bracket, and the second camera assembly 2 and the second light source assembly are connected to the main frame 1 of the device via a second camera bracket; preferably, the first camera assembly 3 and the first light source assembly are integrated devices, and the second camera assembly 2 and the second light source assembly are integrated devices, and both use camera assemblies with their own light sources, which can simplify the structure and have a high degree of intelligence.

[0023] like Figure 5 The fixing structure of the first camera assembly 3 is as follows: a connecting rod is fixedly installed on the front side of the main frame 1 of the equipment along the left-right direction, and two first camera brackets are installed on the same connecting rod, and the first camera assembly 3 is installed on each first camera bracket. Similarly, the fixing mechanism of the second camera assembly 2 is the same as that of the first camera assembly 3, that is, a connecting rod is fixedly installed on the rear side of the main frame 1 of the equipment along the left-right direction, and two second camera brackets are installed on the same connecting rod, and the second camera assembly 2 is installed on each second camera bracket. The connecting rod stably fixes the camera bracket and should withstand the gravity of the camera assembly to ensure that the position and angle of the camera assembly will not change automatically for a long time, thereby maintaining a stable working state. This structure can shoot and detect larger plates.

[0024] A linear module 1-3 and a motor driving the linear module 1-3 are fixedly provided on the main frame 1 of the equipment in the working chamber 1-2. Specifically, the main frame 1 of the equipment fixes the linear module 1-3 through a suspension arm. The moving part of the linear module 1-3 can move horizontally along the width direction of the plate and is fixedly connected to a third camera assembly 4-1 for photographing a side image of the plate through a third camera bracket 4-12. The third camera bracket 4-12 is connected to a third light source assembly 4-11 through a first light source bracket 4-13. The third light source assembly 4-11 fills the side of the plate with light when photographing to cooperate with the camera assembly to collect image information.

[0025] When the width of the plate changes, the system adjusts the position of the third camera assembly 4-1 according to the width of the plate to maintain the best shooting distance between the third camera assembly 4-1 and the left side of the plate, ensuring that the side image can be captured and the shooting effect is good.

[0026] The fixed part on one side of the conveyor belt 1-5 is connected to the fourth camera assembly 4-2 for photographing the other side of the plate through the fourth camera bracket 4-22. Based on the orientation of the figure, the right side of the plate is collected. The fourth camera bracket 4-22 is connected to the fourth light source assembly 4-21 through the second light source bracket 4-23. The fourth light source assembly 4-21 fills the side of the plate with light when shooting to cooperate with the camera assembly to collect image information.

[0027] The top of the equipment main frame 1 in the working chamber 1-2 is fixedly connected to the fifth camera assembly 5 for photographing the top surface image of the plate through the fifth camera bracket, and the fifth light source assembly 5-1 for supplementary light to the top surface of the plate during photographing is fixedly connected by a hanging arm hanging type beside the fifth camera assembly 5. The fifth camera bracket and the hanging arm should ensure sufficient strength to withstand the gravity of the fifth camera assembly 5 and the fifth light source assembly 5-1, and ensure the stable operation of the components.

[0028] In this embodiment, there is a working distance between the first conveyor belt 1-5 and the second conveyor belt 1-6 and a background module 1-7 is provided. The base bracket 1 is provided with a sixth camera assembly for capturing the image of the back of the plate. With the cooperation of the background module 1-7, the sixth camera assembly images the image of the back of the plate. A sixth light source assembly for filling light toward the background module 1-7 is provided on the side of the sixth camera assembly.

[0029] Specifically, Figure 8The background module 1-7 includes a first bracket 1-71, a second bracket 1-72, a background belt bracket 1-73, a background belt 1-74 and a shading plate 1-75. The left side of the first conveyor belt 1-5 and the left side of the second conveyor belt 1-6 are respectively fixedly connected to the two ends of the first bracket 1-71 spanning the working distance. The right side of the first conveyor belt 1-5 and the right side of the second conveyor belt 1-6 are fixedly connected to the two ends of the second bracket 1-72 spanning the working distance. The first bracket and the second bracket are respectively fixedly connected to the two ends of the background belt bracket 1-73. The background belt bracket is arranged above the working distance to fix the background belt and to shield the light, and does not hinder the transmission of the plate; the background belt bracket The closer the width of the frame is to the working spacing, the better the shading effect is, which provides a good background environment for line scanning. The lower side of the background belt bracket 1-73 is provided with a background belt 1-74, and the upper side of the background belt bracket 1-73 is provided with a shading plate 1-75. The background belt adopts a blue leather background belt, and the background belt bracket adopts a single-sided sealed groove profile, which has a more stable supporting effect. The setting of the shading plate further improves the shading effect, which can reduce the material consumption of the background belt bracket and reduce costs; preferably, the width of the shading plate is greater than the working spacing distance between the first conveyor belt and the second conveyor belt, and the downward projection area of ​​the shading plate can cover the working spacing area, thereby achieving better shading effect.

[0030] Specifically, Fig. 9 The sixth camera assembly includes a slide 9-1, an angle adjuster 9-2, a connecting plate 9-3, a camera seat 9-4 and a line scan camera. The slide 9-1 is fixedly mounted on the base bracket 1, the angle adjuster 9-2 is fixed on the slide 9-1, one end of the connecting plate 9-3 is fixed on the angle adjuster 9-2, the camera seat 9-4 is fixed on the other end of the connecting plate 9-3, the line scan camera is arranged on the camera seat 9-4, the slide 9-1 can move up and down, the angle adjuster 9-2 adopts a manual arc angle adjuster with angle scale lines and high precision. This structure can adjust the height and angle of the sixth camera assembly with high precision to meet the plate detection requirements under different environments.

[0031] Two sixth camera assemblies are arranged side by side on the base bracket 1, and the sixth camera assembly is arranged below the first conveyor belt 1-5 or the second conveyor belt 1-6 to prevent wood chips on the conveyor belt from falling directly onto the line scan camera, thereby reducing imaging interference with the camera. The first camera assembly to the sixth camera assembly are all electrically connected to the computer drive device, the first light source assembly to the sixth light source assembly are all electrically connected to the computer drive control device, and the first conveyor belt, the second conveyor belt and the motor are all electrically connected to the computer drive control device. The computer drive control device is the drive center of the detection system and the control center for issuing, receiving and processing instructions. In this embodiment, it mainly completes the control and driving of the motor, the first conveyor belt and the second conveyor belt according to the instructions, controls the light source assembly to fill light, and controls the camera assembly to start shooting. With the cooperation of the light source assembly, the camera assembly collects the image information of the six sides of the plate and transmits it to the computer drive control device, which analyzes and processes it, thereby detecting the size and surface defects of the plate, and adopts conventional and mature visual inspection product size and surface defect procedures. The computer drive control device includes existing equipment such as a host, a PLC controller, and a motor driver. The internal structure of the computer drive control device is not the creative point of the present invention, and is an existing technology or conventional technology. In this embodiment, it is not repeated here; multiple pairs of photoelectric sensors are conventionally arranged on the first conveyor belt and the second conveyor belt. The photoelectric sensors sense the position information of the plate and feed it back to the host. The host controls the camera assembly to scan and shoot according to the program sequence.

[0032] Working principle: The plate starts to be conveyed from the second conveyor belt and passes under the background module. During this process, the plate is in motion, and the sixth camera component completes the acquisition of the image of the back of the plate and transmits it to the host; thereafter, the plate is conveyed by the first conveyor belt. When the plate is sent into the plate detection system by the first conveyor belt, the first camera component, the second camera component, the third camera component, the fourth camera component, and the fifth camera component, under the control of the host, respectively shoot the front side image, rear side image, left side image, right side image and top surface image of the plate (based on the orientation on the figure), and transmit the collected image information to the host for analysis to detect the size and defects of the plate.

[0033] In order to install the drive control equipment and place the computer equipment, the present invention also includes an auxiliary frame 6. The left and right sides of the main frame 1 of the equipment are respectively fixedly connected to an auxiliary frame 6. The bottom of the auxiliary frame 6 is provided with a supporting foot assembly 6-1. The auxiliary frame 6 adopts a square warehouse structure and has an installation warehouse inside. The installation warehouse is used to install electronic control equipment and computer equipment. The auxiliary frame 6 can assist the main frame of the equipment in supporting the equipment and play a role in reinforcement. At the same time, it can install and place various expensive equipment and is highly practical.

[0034] The auxiliary frame 6 is connected to a touch screen hanging box 7 that rotates horizontally along the central axis in the vertical direction. The touch screen hanging box 7 is provided with a touch screen 8 for system operation. The touch screen hanging box 7 is provided with a touch screen 8, and the touch screen is electrically connected to the computer drive control device. The touch screen hanging box 7 can be horizontally rotated to a certain angle. When the angle of operating the touch screen is not good, the angle of the touch screen hanging box 7 is adjusted to adjust the direction of the touch screen, which is convenient for touch screen operation. The structure has strong flexibility.

[0035] Embodiment 2, as Figure 10-11 On the basis of the first embodiment, a plate aligning component is provided on the second conveyor belt, and the plate aligning component is controlled by a computer-driven device to calibrate the orientation of the plate.

[0036] Specifically, the plate straightening assembly includes a push rod assembly 1-64 and a guide member 1-63. The linear module mounting frame 1-61 is fixedly connected to the side of the base bracket 1-4. The second linear module 1-62 and a motor for driving the linear module to move linearly are fixedly connected to the linear module mounting frame 1-61. The guide member 1-63 is fixedly arranged on one side of the second conveyor belt 1-6 along the plate conveying direction and its side facing the middle of the second conveyor belt 1-6 is used to straighten the plate. The push rod assembly 1-64 is fixedly connected to the second linear module moving part and is arranged above the second conveyor belt body. The push rod assembly 1-64 pushes the plate to move on the second conveyor belt under the force applied by the second linear module so that one side of the plate lightly touches the guide member.

[0037] The push rod assembly 1-64 includes an adapter 1-641, a push rod 1-642 and a rotating member 1-643. The push rod is fixedly connected to the moving part of the linear module through the adapter. A plurality of rotating members are fixedly installed on the lower side of the push rod along the length direction of the push rod, and the rotating members can rotate around the central axis in the vertical direction. The vertical distance between the rotating member and the second conveyor belt is less than the thickness of the plate to ensure that the plate can be pushed. Preferably, the rotating member is cylindrical and a bearing and a matching rotating shaft are fixed in the middle. The rotating shaft is installed on the lower side of the push rod through a fixing member, and the fixing member can be a nut or a bearing nesting member, which is a conventional technology.

[0038] In the present invention, the linear module is an automation upgrade unit following the linear guide rail, linear motion module, and ball screw linear transmission mechanism. The linear motion of the load can be realized through the combination of various units, making the automation of light loads more flexible and the positioning more precise. The linear module is a well-known technology and will not be described in detail here.

[0039] In this structure, the rotating member of the push rod assembly contacts the plate, and the plate moves with the conveyor belt, and the plate drives the rotating member to rotate, and the rotating member converts the friction force into rotational force, thereby reducing the scratches of the rotating member on the plate. Preferably, the rotating member is made of rubber material or plastic, which can reduce the scratches on the plate.

[0040] After placing the plate on the second conveyor belt, the position of the plate is calibrated and corrected so that the plate enters the plate detection equipment in a standard position, thereby reducing the difficulty of plate detection and the complexity of the detection equipment, reducing the detection cost and improving the detection accuracy.

[0041] Embodiment 3: Based on Embodiment 2, a plate identification code scanning component 10 is provided at the entrance of the second conveyor belt 1-6. The plate identification code scanning component 10 is controlled by a computer-driven device to collect identification code information and transmit it to a computer for analysis to obtain plate model and parameters. It can cooperate with a plate straightening component for adaptive straightening. The control method is as follows: The plate self-adaptive straightening control method of the plate detection equipment comprises the following steps: Step 1: Obtain the parameters of the plate, which at least include length L, width and weight. Plates of different models have different parameters. The plate parameters are obtained by the plate identification code scanning component in Example 2 and the system is set. It should be noted that the length L, width and weight N in the plate parameters are not the actual size and weight of the plate. The purpose of plate detection is to verify whether the actual size of the plate is consistent with the preset parameters.

[0042] Step 2. According to the preset friction coefficient μ and the weight parameter N of the plate, the friction force calculation formula F = μNg, g is the gravity coefficient, and the friction force of the plate on the conveyor belt is estimated. The preset torque required to be output by the motor is calculated based on the friction force. Here, the torque output of the motor is estimated by the torque transmission principle. This technology is existing technology and will not be elaborated here.

[0043] Step 3: The computer-driven control device calculates the initialization position of the push rod assembly according to the width of the plate. The calculation method of the initialization position of the push rod assembly is: the sum of the width of the plate and the width redundancy, and the width redundancy is a system setting parameter.

[0044] Step 4: The computer-driven control device calculates the delay time T of the regular start according to the length L of the plate and the speed S of the conveyor belt, and completes the system setting; the formula is as follows: ,in, is the adjustment coefficient, ranging from 0.6 to 0.96. is the distance between the photoelectric sensor and the conveyor belt entrance; The theoretical value of can be 1, but the width redundancy causes the push rod assembly to take a certain amount of time to move from the initialization position to the side of the plate, while the speed of the conveyor belt is constant, which will cause the plates to be straightened only after all of them enter the conveyor belt, which is not conducive to the next step of the process. Therefore, the present invention needs to control the straightening of all the plates before they enter the conveyor belt. The straightening has high stability and does not interfere with the next step.

[0045] Step 5: The computer control device controls the motor to drive the linear module according to the calculated initialization position of the push rod assembly, thereby driving the push rod assembly to move to the initialization position; Step 6: From the moment of receiving the position signal of the photoelectric sensor, the computer control device controls the motor according to the delay time T of the regular start, and drives the push rod assembly to move toward the plate; Step 7. The computer-driven control device controls the motor output torque according to the preset torque, and determines whether the push rod assembly pushes the plate according to the change in motor power; if it does, the plate is straightened; if it does not, the motor output torque is controlled according to the product of the preset multiple and the preset torque until the plate is pushed to lightly touch the guide part, and when the photoelectric sensor is not received, the push rod assembly is driven back to the initialization position.

[0046] The preset torque multiples are 1.2 times, 1.5 times and 1.8 times, and the output torque increases step by step. First, use one times the torque to tentatively push the plate, and then increase the output torque step by step until the plate can be pushed. This reduces the risk of damage to the plate and improves the working stability of the equipment.

[0047] The orientation of the plate is calibrated and corrected so that the plate enters the plate detection equipment in a standard orientation, thereby reducing the difficulty of plate detection and the complexity of the detection equipment, reducing the detection cost and improving the detection accuracy.

[0048] The above is only a preferred embodiment of the present invention. The protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of this template.

[0049] The above is a detailed description of an embodiment of the present invention, but the content is only a preferred embodiment of the present invention and cannot be considered to limit the scope of implementation of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the scope of the patent coverage of the present invention.

Claims

1. A six-side dynamic detection system for a plate, characterized in that: The invention comprises an equipment main frame, a base bracket and a computer-driven control device, wherein the upper part of the equipment main frame is provided with a working chamber, the base bracket runs through the lower part of the equipment main frame, the base bracket is provided with a first conveyor belt and a second conveyor belt in sequence in front and back, and the working chamber is arranged above the first conveyor belt; there is a working distance between the first conveyor belt and the second conveyor belt and a background module is arranged; the base bracket is provided with a sixth camera assembly for shooting the back image of the plate and below the background module, and a sixth light source assembly for filling light toward the background module is arranged on the side of the sixth camera assembly; the working chamber is provided with a first camera assembly for shooting the front and side images of the plate and a second camera assembly for shooting the rear and side images of the plate in sequence in front and back along the conveying direction of the plate, a first light source assembly for filling light for the front and side of the plate during shooting is fixedly arranged next to the first camera assembly, and a sixth light source assembly for filling light for the front and side of the plate during shooting is fixedly arranged next to the second camera assembly A second light source assembly is provided for supplementary lighting the rear side of the plate during shooting; the working chamber is fixedly provided with a linear module and a motor driving the linear module, the moving part of the linear module can move horizontally along the width direction of the plate and is fixedly connected with a third camera assembly and a third light source assembly for photographing a side image of the plate; a fourth camera assembly and a fourth light source assembly for photographing the other side image of the plate are fixedly connected to the fixed part on one side of the conveyor belt; a fifth camera assembly for photographing the top surface image of the plate is fixedly connected to the top of the working chamber, and a fifth light source assembly for supplementary lighting the top surface of the plate during shooting is suspended and fixedly connected next to the fifth camera assembly, the first camera assembly to the sixth camera assembly are all electrically connected to a computer drive device, the first light source assembly to the sixth light source assembly are all electrically connected to a computer drive control device, and the first conveyor belt, the second conveyor belt and the motor are all electrically connected to the computer drive control device.

2. A six-side dynamic detection system for a plate as claimed in claim 1, characterized in that: The second conveyor belt is provided with a plate aligning assembly, which is controlled by a computer-driven control device to calibrate the orientation of the plate. The plate aligning assembly includes a push rod assembly and a guide member. The side of the base bracket is fixedly connected to a linear module mounting frame, and the linear module mounting frame is fixedly connected to a second linear module and a motor for driving the linear module to move linearly. The guide member is fixedly arranged on one side of the second conveyor belt body along the plate conveying direction and its side facing the middle direction of the second conveyor belt body is used to align the plate. The push rod assembly is fixedly connected to the second linear module moving part and is arranged above the second conveyor belt body. Under the force applied by the second linear module, the push rod assembly pushes the plate to move on the second conveyor belt so that one side of the plate lightly touches the guide member.

3. A six-side dynamic detection system for a plate as claimed in claim 2, characterized in that: A plate identification code scanning component is arranged at the entrance of the second conveyor belt, and the plate identification code scanning component is controlled by a computer-driven device to collect identification code information and transmit it to a computer for analysis to obtain plate model and parameters.

4. A six-side dynamic detection system for a plate material as claimed in any one of claims 1 to 3, characterized in that: It includes two connecting rods, one connecting rod is fixedly installed on the front side of the main frame of the device along the left-right direction, two first camera brackets are installed on the same connecting rod, and a first camera assembly is installed on each first camera bracket; the other connecting rod is fixedly installed on the rear side of the main frame of the device along the left-right direction, two second camera brackets are installed on the same connecting rod, and a second camera assembly is installed on each second camera bracket.

5. A six-side dynamic detection system for a plate material as claimed in any one of claims 1 to 3, characterized in that: Two sixth camera assemblies are arranged side by side on the base bracket.

6. A six-side dynamic detection system for a plate material as claimed in any one of claims 1 to 3, characterized in that: The sixth camera assembly includes a slide, an angle adjuster, a connecting plate, a camera seat and a line scan camera. The slide is fixedly mounted on a base bracket, the angle adjuster is fixed on the slide, one end of the connecting plate is fixed on the angle adjuster, the camera seat is fixed on the other end of the connecting plate, and the line scan camera is arranged on the camera seat.

7. A six-side dynamic detection system for a plate material as claimed in any one of claims 1 to 3, characterized in that: The background module includes a first bracket, a second bracket, a background belt bracket, a background belt and a shading plate. The left side of the first conveyor belt and the left side of the second conveyor belt are connected by the first bracket spanning the working distance. The right side of the first conveyor belt and the right side of the second conveyor belt are connected by the second bracket spanning the working distance. The first bracket and the second bracket are respectively fixedly connected to the two ends of the background belt bracket. The background belt is provided on the lower side of the background belt bracket, and the shading plate is provided on the upper side of the background belt bracket.

8. A six-side dynamic detection system for a plate material as claimed in any one of claims 1 to 3, characterized in that: It also includes an auxiliary frame, and the left and right sides of the main frame of the equipment are respectively fixedly connected to an auxiliary frame. A supporting foot assembly is provided at the bottom of the auxiliary frame. The auxiliary frame adopts a square warehouse structure and an internal installation warehouse. The computer-driven control equipment is installed and placed in the installation warehouse.

9. A six-side dynamic detection system for a plate as claimed in claim 8, characterized in that: The auxiliary frame is connected to a touch screen hanging box which rotates horizontally along a central axis in a vertical direction. The touch screen hanging box is provided with a touch screen which is electrically connected to a computer drive control device.

Citation Information

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