Visual inspection equipment

Abstract

The utility model discloses visual inspection equipment, which comprises a conveying device comprising a mounting rack and a conveying mechanism mounted on the mounting rack, and the conveying mechanism is used for conveying tableware; the shooting device is arranged below the conveying mechanism; the shooting device comprises a bottom face shooting camera, a side face shooting camera and a light-transmitting cover plate, the light-transmitting cover plate covers the bottom face shooting camera, the bottom face shooting camera can shoot the bottom face of the tableware through the light-transmitting cover plate, and the side face shooting camera can shoot the side face of the tableware; the blowing mechanism is arranged on one side of the light-transmitting cover plate and used for blowing air to the upper surface of the light-transmitting cover plate so as to clean the light-transmitting cover plate. According to the scheme, the light-transmitting cover plate is further arranged above the bottom face shooting camera, the light-transmitting cover plate can block falling tableware, and the bottom face shooting camera is protected. According to the scheme, an air blowing mechanism is further arranged, and the air blowing mechanism can blow air to the upper surface of the light-transmitting cover plate for cleaning, so that the definition of images shot by the bottom face shooting camera is ensured.

Description

Technical Field

[0001] This application relates to the technical field of tableware surface detection equipment, and particularly relates to a vision detection device. Background Art

[0002] After disposable lunch boxes, lunch box lids, cups, cup lids and other disposable tableware are processed and formed, they often need to go through the surface quality inspection stage. The most traditional inspection method is visual inspection by inspectors, which consumes a lot of manpower and has low inspection efficiency. Some manufacturers use vision detection equipment for automated inspection. Existing vision detection equipment includes a conveyor device, a camera and a computer, etc. During the inspection operation, the tableware is conveyed on the conveyor device, the camera takes images of the surface of the tableware and uploads them to the computer for image analysis, and the computer uses an image analysis program to analyze whether there are defects on the surface of the tableware to achieve the function of automatic detection.

[0003] In existing vision detection equipment, in order to achieve comprehensive detection of tableware, an upper detection camera and a lower detection camera are usually arranged along the conveying direction of the conveyor belt. The upper detection camera is located above the conveyor device and takes a downward picture of the upper surface of the tableware. The lower detection camera is located below the conveyor device and takes an upward picture of the lower surface of the tableware. To avoid the conveyor device blocking the shooting of the lower detection camera, the conveyor device is generally arranged with an air gap at the stage of the lower detection camera. Specifically, at this stage, the lower conveyor device clamps the tableware from both sides of the tableware, so that the lower surface of the tableware can face the lower detection camera directly. Based on this, there are certain problems with existing vision detection equipment: For the tableware conveyed in the area above the lower detection camera, since the bottom of the tableware lacks support, it is inevitable that when the conveyor belt clamps the tableware unreliably, the tableware will fall downward and hit the lens of the lower detection camera, posing a risk of damaging the lens of the lower detection camera. Summary of the Utility Model

[0004] The purpose of the embodiments of the present utility model is to provide a vision detection device that can solve the above problems existing in the prior art.

[0005] To achieve the above object, this application adopts the following technical solutions:

[0006] A vision detection device includes:

[0007] A conveying device, including a mounting frame and a conveying mechanism installed on the mounting frame, the conveying mechanism being used to convey tableware;

[0008] A photographing device, arranged below the conveying mechanism; the photographing device includes a bottom surface photographing camera, a side surface photographing camera and a light-transmitting cover plate, the light-transmitting cover plate covering above the bottom surface photographing camera, the bottom surface photographing camera being able to photograph the bottom surface of the tableware through the light-transmitting cover plate, and the side surface photographing camera being able to photograph the side surface of the tableware;

[0009] A blowing mechanism is provided on one side of the light-transmitting cover plate for blowing air onto the upper surface of the light-transmitting cover plate to clean the light-transmitting cover plate.

[0010] Optionally, it further includes an equipment machine platform, and both the conveying device and the photographing device are installed on the equipment machine platform; the blowing mechanism includes a connecting head, a fixed seat, an air pipe and a nozzle connected in sequence. The fixed seat is fixed on the equipment machine platform. The fixed seat is provided with a ventilation passage, and both the connecting head and the air pipe are communicated with the ventilation passage; the connecting head is used for connecting with an air source pipeline.

[0011] Optionally, the air pipe is a universal joint pipe.

[0012] Optionally, the fixed seat has a fixing hole, and a bolt passes through the fixing hole and is connected to the equipment machine platform to fix the fixed seat on the equipment machine platform.

[0013] Optionally, there are two sets of the photographing devices, and correspondingly two sets of the blowing mechanisms are provided; a bottom light source is provided in one set of the photographing devices. The bottom light source is arranged below the light-transmitting cover plate and is used for illuminating the lower surface of the tableware upward; a top light source is arranged above the other set of the photographing devices. The top light source is located above the conveying mechanism and is used for illuminating the upper surface of the tableware downward.

[0014] Optionally, the bottom light source is arranged on the lower side of the light-transmitting cover plate, and a light-transmitting hole for avoiding the view-finding of the bottom surface photographing camera is provided at the center thereof.

[0015] Optionally, the top light source includes a top plate light source and a top ring light source. The top plate light source is located above the top ring light source. The top plate light source is used for illuminating the top surface of the tableware, and the top ring light source is used for illuminating the side surface of the tableware.

[0016] Optionally, the conveying mechanism includes two symmetrically arranged conveying units. Each conveying unit includes a mounting strip, guide wheels and a conveyor belt. A plurality of the guide wheels are rotatably installed on the mounting strip, and the conveyor belt is sleeved outside the guide wheels; the two conveying units clamp the tableware through the conveyor belt, and the running conveyor belt pushes the tableware forward to achieve the conveying purpose.

[0017] Optionally, the conveying device further includes a spacing adjustment mechanism mounted on the mounting rack. The spacing adjustment mechanism includes a mounting plate, guide rails, sliders, and a spacing adjustment component. The mounting plate is mounted on the mounting rack, the guide rails are fixedly arranged on the mounting plate, the two mounting bars are respectively connected with the sliders, the sliders are slidably connected to the guide rails, and the spacing adjustment component is connected to the two mounting bars. By means of the spacing adjustment component, the two mounting bars can be driven to approach or move away from each other, so as to adjust the spacing between the two conveying units.

[0018] Optionally, the mounting plate is slidably mounted on the mounting rack and can move up and down relative to the mounting rack; the conveying device further includes a height adjustment mechanism mounted on the mounting rack. The height adjustment mechanism includes a fixing plate and a height adjustment component. The fixing plate is fixed to the top of the mounting rack, and the height adjustment component is connected to the fixing plate and the mounting plate. By means of the height adjustment component, the mounting plate can be driven to lift relative to the fixing plate, so as to adjust the height of the conveying mechanism.

[0019] The beneficial effects of the present application are as follows: The utility model provides a vision detection device, which includes a conveying device and a photographing device arranged below the conveying mechanism. The photographing device is provided with a bottom photographing camera and a side photographing camera, which can respectively photograph the bottom and side of the tableware; in this solution, a light-transmitting cover plate is further arranged above the bottom photographing camera. The light-transmitting cover plate can block the falling tableware, avoid the tableware from hitting the bottom photographing camera, and provide protection for the bottom photographing camera. In addition, this solution also provides a blowing mechanism, which can blow air onto the upper surface of the light-transmitting cover plate for cleaning, removing dust and debris on the light-transmitting cover plate, so as to ensure the clarity of the image photographed by the bottom photographing camera. Description of the Drawings

[0020] The following further describes the present application in detail according to the drawings and embodiments.

[0021] Figure 1 It is a schematic structural diagram of the vision detection device according to the embodiment of the present application;

[0022] Figure 2 It is one of the schematic structural diagrams of the photographing device according to the embodiment of the present application;

[0023] Figure 3 It is the other schematic structural diagram of the photographing device according to the embodiment of the present application;

[0024] Figure 4 It is the schematic structural diagram of the blowing mechanism according to the embodiment of the present application;

[0025] Figure 5 It is one of the schematic structural diagrams of the conveying device according to the embodiment of the present application;

[0026] Figure 6 This is the second structural schematic diagram of the conveying device according to the embodiment of the present application.

[0027] In the figure:

[0028] 1. Conveying device; 11. Mounting frame; 12. Conveying mechanism; 121. Mounting strip; 122. Guide wheel; 123. Conveyor belt; 124. Motor; 13. Spacing adjustment mechanism; 131. Spacing adjustment component; 132. Mounting plate; 133. Guide rail; 134. Slide block; 14. Height adjustment mechanism; 141. Height adjustment component; 142. Fixed plate; 2. Photographing device; 21. Side photographing camera; 22. Bottom photographing camera; 23. Transparent cover plate; 3. Blowing mechanism; 31. Connector; 32. Fixed seat; 33. Air pipe; 34. Nozzle; 4. Equipment machine table; 5. Bottom light source; 6. Top light source; 61. Top plate light source; 62. Top ring light source. Detailed implementation manners

[0029] To make the technical problems solved by the present application, the technical solutions adopted and the achieved technical effects clearer, the technical solutions of the embodiments of the present application will be further described in detail below. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative efforts belong to the scope of protection of the present application.

[0030] In the description of the present application, unless otherwise clearly defined and limited, the terms "connected", "connected to", and "fixed" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the internal connection of two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0031] In the present application, unless otherwise clearly defined and limited, the first feature being "above" or "below" the second feature may include the direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through other features between them. Moreover, the first feature being "above", "above", and "on the top" of the second feature includes that the first feature is directly above and obliquely above the second feature, or merely indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature being "below", "below", and "under the bottom" of the second feature includes that the first feature is directly below and obliquely below the second feature, or merely indicates that the horizontal height of the first feature is lower than that of the second feature.

[0032] After disposable tableware such as existing disposable lunch boxes, lunch box lids, cups, and cup lids are processed and formed, they often need to go through a surface quality inspection stage. The most traditional inspection method is visual inspection by inspectors, which is labor-intensive and has low inspection efficiency. Some manufacturers use vision inspection equipment for automated inspection. Existing vision inspection equipment includes a conveying device, a camera, and a computer, etc. During the inspection operation, the tableware is conveyed on the conveying device, the camera takes images of the surface of the tableware and uploads them to the computer for image analysis. The computer uses an image analysis program to analyze whether there are defects on the surface of the tableware, realizing the function of automatic inspection.

[0033] In existing vision inspection equipment, to achieve a comprehensive inspection of the tableware, an upper inspection camera and a lower inspection camera are usually arranged along the conveying direction of the conveyor belt. The upper inspection camera is located above the conveying device and takes a downward shot of the upper surface of the tableware. The lower inspection camera is located below the conveying device and takes an upward shot of the lower surface of the tableware. To avoid the conveying device blocking the shooting of the lower inspection camera, the conveying device is generally arranged with an air gap at the stage of the lower inspection camera. Specifically, at this stage, the lower conveying device clamps the tableware from both sides of the tableware, so that the lower surface of the tableware can face the lower inspection camera directly. Based on this, there are certain problems with existing vision inspection equipment: for the tableware conveyed in the area above the lower inspection camera, due to the lack of support at the bottom of the tableware, it is inevitable that when the conveyor belt clamps the tableware unreliably, the tableware will fall downward and hit the lens of the lower inspection camera, posing a risk of damaging the lens of the lower inspection camera.

[0034] To solve the above technical problems, in combination with Figure 1 , this embodiment provides a vision inspection device, including a conveying device 1, a photographing device 2, and a blowing mechanism 3; the conveying device 1 includes a mounting frame 11 and a conveying mechanism 12 installed on the mounting frame 11, and the conveying mechanism 12 is used to convey tableware; the photographing device 2 is arranged below the conveying mechanism 12; the photographing device 2 includes a bottom surface photographing camera 22, a side surface photographing camera 21, and a light-transmitting cover plate 23, the light-transmitting cover plate 23 covers above the bottom surface photographing camera 22, the bottom surface photographing camera 22 can photograph the bottom surface of the tableware through the light-transmitting cover plate 23, and the side surface photographing camera 21 can photograph the side surface of the tableware; the blowing mechanism 3 is arranged on one side of the light-transmitting cover plate 23 and is used to blow air onto the upper surface of the light-transmitting cover plate 23 to clean the light-transmitting cover plate 23.

[0035] It should be noted that the main technical problem to be solved by this solution is how to provide a protection means for the photographing device 2 located below the conveying device 1, and it does not involve the improvement of the camera located above the conveying device 1. Therefore, this solution focuses on describing the photographing device 2 located below the conveying mechanism 12. In actual applications, those skilled in the art can combine existing visual detection devices to set a camera above the conveying device 1 to photograph the upper surface of the tableware, so as to realize the comprehensive detection function of the tableware.

[0036] Tableware such as lunch boxes, lids, bowls, bowl lids, cups, cup lids, etc. all have a certain concave cavity. During the conveying process of the conveying device 1, the conveying device 1 generally clamps the two outer side walls of the tableware for conveying, and the concave cavity of the tableware faces downward towards the photographing device 2. In order to achieve a forward view of the entire inner cavity of the tableware, combined with Figure 2-3 , the photographing device 2 of this solution is provided with a bottom surface photographing camera 22 and a side surface photographing camera 21. The bottom surface photographing camera 22 is located directly below the conveyed tableware, and it vertically shoots upward at the inner bottom surface of the concave cavity, that is, shoots the bottom surface of the tableware; the side surface photographing camera 21 is located below the side of the tableware, and there are multiple of them and they are all inclined, and it shoots obliquely upward at the inner side surface of the concave cavity, that is, shoots the side surface of the tableware. It can be seen that the photographing device 2 of this solution can achieve a comprehensive forward view of the lower surface of the tableware with a concave cavity, and can ensure the photographing accuracy. Among them, since the bottom surface photographing camera 22 is located directly below the tableware, there is a risk that the dropped tableware may hit the bottom surface photographing camera 22, so a light-transmitting cover plate 23 is provided above it; while the side surface photographing camera 21 is located below the side of the tableware, the dropped tableware will not hit the side surface photographing camera 21, so there is no need to provide protection for it. In this way, it is beneficial to reduce the area of the light-transmitting cover plate 23 and reduce the cost.

[0037] In summary, based on the visual detection device of this embodiment, including the conveying device 1 and the photographing device 2 arranged below the conveying mechanism 12, the photographing device 2 is provided with a bottom surface photographing camera 22 and a side surface photographing camera 21 which can respectively photograph the bottom surface and the side surface of the tableware; this solution also sets a light-transmitting cover plate 23 above the bottom surface photographing camera 22, and the light-transmitting cover plate 23 can block the dropped tableware to prevent the tableware from hitting the bottom surface photographing camera 22 and provide protection for the bottom surface photographing camera 22. In addition, this solution also sets a blowing mechanism 3, and the blowing mechanism 3 can blow air onto the upper surface of the light-transmitting cover plate 23 for cleaning to remove dust and debris on the light-transmitting cover plate 23 to ensure the clarity of the image photographed by the bottom surface photographing camera 22.

[0038] In one embodiment, it further includes an equipment platform 4, and both the conveying device 1 and the photographing device 2 are installed on the equipment platform 4; combined with Figure 4, the air blowing mechanism 3 includes a connector 31, a fixed seat 32, an air pipe 33 and a nozzle 34 connected in sequence. The fixed seat 32 is fixed on the equipment machine platform 4. The fixed seat 32 is provided with a ventilation passage, and both the connector 31 and the air pipe 33 are communicated with the ventilation passage; the connector 31 is used for connecting with the gas source pipeline.

[0039] The air blowing mechanism 3 adopts a combined design of a connector 31, a fixed seat 32, an air pipe 33 and a nozzle 34. Among them, the fixed seat 32 is fixed on the equipment machine platform 4, ensuring the stability of the air blowing mechanism 3. The connector 31 is used for connecting with the gas source pipeline, making the access of the gas source more convenient and the gas path connection more stable and reliable. The fixed seat 32 is provided with a ventilation passage, and both the connector 31 and the air pipe 33 are communicated with the ventilation passage, ensuring the smoothness and stability of the air flow.

[0040] In one embodiment, the air pipe 33 is a universal joint pipe.

[0041] The universal joint pipe, also known as a flexible universal joint, is a flexible pipe that can rotate and bend in multiple directions. This characteristic enables the air pipe 33 to easily adapt to various complex layouts and installation requirements on the equipment machine platform 4, without worrying about the problem that the air pipe 33 cannot be connected or bent due to space limitations. It can be bent and connected according to actual needs without using complex tools and jigs. At the same time, due to its high flexibility, future maintenance and replacement become more convenient.

[0042] In one embodiment, the fixed seat 32 has a fixing hole, and a bolt passes through the fixing hole and is connected to the equipment machine platform 4 to fix the fixed seat 32 on the equipment machine platform 4.

[0043] Fixing the fixed seat 32 on the equipment machine platform 4 with bolts can effectively prevent the fixed seat 32 from loosening or displacing during the operation of the equipment, ensuring the stability and reliability of the air blowing mechanism 3.

[0044] In one embodiment, in combination Figure 2-3 , there are two sets of the photographing devices 2, and two sets of the air blowing mechanisms 3 are correspondingly provided; a bottom light source 5 is arranged in one set of the photographing devices 2, and the bottom light source 5 is arranged below the bottom light source 5 for illuminating the lower surface of the tableware upward; a top light source 6 is arranged above the other set of the photographing devices 2, and the top light source 6 is located above the conveying mechanism 12 for illuminating the upper surface of the tableware downward.

[0045] Specifically, the detection functions of the two sets of photographing devices 2 are different: for the photographing device 2 provided with the bottom light source 5, the bottom light source 5 illuminates the lower surface of the tableware from bottom to top, facilitating the photographing device 2 to clearly capture the image of the lower surface of the tableware for the surface quality detection of the lower surface of the tableware; for the photographing device 2 provided with the top light source 6, the top light source 6 illuminates the tableware from top to bottom. When there are holes in the tableware causing light leakage, bright spots will appear in the image captured by the photographing device 2, so that whether there are hole defects on the tableware can be detected. Therefore, this solution has the advantages of comprehensive detection and high precision.

[0046] In one embodiment, the bottom light source 5 is disposed below the light-transmitting cover plate 23, and a light-transmitting hole for avoiding the view-finding of the bottom surface photographing camera 22 is provided at the center thereof.

[0047] The bottom light source 5 is disposed below the light-transmitting cover plate 23, which can ensure that the light irradiates the lower surface of the tableware evenly and softly, avoiding the generation of strong shadows or reflections, thereby optimizing the photographing effect.

[0048] A light-transmitting hole is provided at the center of the bottom light source 5. It not only allows the lens of the bottom surface photographing camera 22 to pass through so as to capture a clear image of the lower surface of the tableware, but also ensures that the light source does not directly irradiate the camera lens, avoiding possible glare or interference. Combining the bottom light source 5 with the light-transmitting cover plate 23 can achieve a more compact device design, save space, and at the same time facilitate the installation and maintenance of the device.

[0049] In one embodiment, the top light source 6 includes a top plate light source 61 and a top ring light source 62. The top plate light source 61 is located above the top ring light source 62. The top plate light source 61 is used to illuminate the top surface of the tableware, and the top ring light source 62 is used to illuminate the side surface of the tableware.

[0050] The top plate light source 61 is located above the top ring light source 62 and is mainly responsible for illuminating the top surface of the tableware. The top ring light source 62 surrounds the top plate light source 61 and is mainly used to illuminate the side surface of the tableware. Through the combination of the top plate light source 61 and the top ring light source 62, it can be ensured that both the top surface and the side surface of the tableware can be fully illuminated. This comprehensive lighting system can significantly improve the comprehensiveness of detection and reduce the possibility of missed detection and misdetection.

[0051] In one embodiment, in combination with Figure 5-6, the conveying mechanism 12 includes two symmetrically arranged conveying units. Each conveying unit includes a mounting strip 121, a guide wheel 122, and a conveyor belt 123. A plurality of the guide wheels 122 are rotatably mounted on the mounting strip 121, and the conveyor belt 123 is sleeved outside the guide wheels 122. The two conveying units clamp the tableware through the conveyor belt 123, and the running conveyor belt 123 pushes the tableware forward to achieve the conveying purpose.

[0052] Each conveying unit includes a mounting strip 121, a guide wheel 122, and a conveyor belt 123. The mounting strip 121 provides a basis for the installation and support of the guide wheel 122 and the conveyor belt 123. A plurality of the guide wheels 122 are rotatably mounted on the mounting strip 121 to support and guide the movement of the conveyor belt 123. The conveyor belt 123 is sleeved outside the guide wheels 122, and the rotation of the guide wheels 122 drives the movement of the conveyor belt 123. When the tableware is placed between the two conveying units, the conveyor belt 123 will naturally clamp the tableware. As the conveyor belt 123 runs, the tableware will be pushed forward to achieve the conveying purpose. This clamping method can ensure that the tableware will not fall off or shift during the conveying process.

[0053] To achieve driving, each conveying unit further includes a motor 124. The motor 124 is fixed on the mounting strip 121, and the output shaft of the motor 124 is connected to one of the guide wheels 122. The motor 124 can drive the guide wheel 122 to rotate, thereby driving the conveyor belt 123 to run.

[0054] In one embodiment, the conveying device 1 further includes a spacing adjustment mechanism 13 mounted on the mounting frame 11. The spacing adjustment mechanism 13 includes a mounting plate 132, a guide rail 133, a slider 134, and a spacing adjustment component 131. The mounting plate 132 is mounted on the mounting frame 11. The guide rail 133 is fixedly arranged on the mounting plate 132. The two mounting strips 121 are respectively connected with the slider 134. The slider 134 is slidably connected to the guide rail 133. The spacing adjustment component 131 connects the two mounting strips 121. The two mounting strips 121 can be driven to approach or move away from each other through the spacing adjustment component 131, so as to adjust the spacing between the two conveying units.

[0055] The spacing between the two conveying units is adjustable, which can meet the conveying requirements for tableware of different sizes.

[0056] The spacing adjustment mechanism 13 includes a mounting plate 132, a guide rail 133, a slider 134, and a spacing adjustment assembly 131. The mounting plate 132 is mounted on the mounting frame 11 to provide stable support for the entire adjustment mechanism. The guide rail 133 is fixedly arranged on the mounting plate 132 as the track for the slider 134 to slide. The mounting bars 121 of the two conveying units are respectively connected with the sliders 134, and these sliders 134 can slide along the guide rail 133. When it is necessary to adjust the spacing between the two conveying units, the user can operate the spacing adjustment assembly 131 to make the two sliders 134 approach or move away from each other on the guide rail 133.

[0057] The spacing adjustment assembly 131 generally consists of one or more power elements (such as push rods, lead screws, air cylinders, etc.). By precisely controlling the moving distance and direction of the slider 134, the precise adjustment of the spacing between the two conveying units is achieved. For the drive of the spacing adjustment assembly 131, a handle can be set for manual drive, or a motor 124 or an air cylinder can be set for electric drive.

[0058] In one embodiment, the mounting plate 132 is slidably mounted on the mounting frame 11 and can move up and down relative to the mounting frame 11. The conveying device 1 further includes a height adjustment mechanism 14 mounted on the mounting frame 11. The height adjustment mechanism 14 includes a fixed plate 142 and a height adjustment assembly 141. The fixed plate 142 is fixed to the top of the mounting frame 11, and the height adjustment assembly 141 connects the fixed plate 142 and the mounting plate 132. By means of the height adjustment assembly 141, the mounting plate 132 can be driven to lift relative to the fixed plate 142 to achieve the adjustment of the height of the conveying mechanism 12.

[0059] The height adjustment mechanism 14 includes a fixed plate 142 and a height adjustment assembly 141. The fixed plate 142 is firmly mounted on the top of the mounting frame 11 to provide stable support for the height adjustment mechanism 14. The height adjustment assembly 141 is connected between the fixed plate 142 and the mounting plate 132. By controlling the height adjustment assembly 141, the mounting plate 132 can be driven to perform a lifting motion relative to the fixed plate 142.

[0060] The implementation manner of the height adjustment assembly 141 can be diversified. For example, power elements such as push rods, screw rod lifting mechanisms, and air cylinders can be used to drive the lifting of the mounting plate 132. The drive of these power elements can also be manual drive or electric drive.

[0061] By adjusting the height of the mounting plate 132, the height of the conveying mechanism 12 can also be adjusted accordingly. This design enables the conveying device 1 to adapt to different working environments, such as adapting to tableware of different sizes, production lines, workbenches or photographing devices 2 of different heights, etc., ensuring that the tableware maintains an appropriate distance from the sensors of the detection equipment during the conveying process, thereby improving the detection efficiency and accuracy.

[0062] In the description of this article, it should be understood that the orientation or positional relationships such as "upper", "lower", "left", "right", etc. are only for the convenience of description and simplifying the operation, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, so it cannot be understood as a limitation to this application. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0063] In the description of this specification, the description referring to terms such as "one embodiment", "example", etc. means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example.

[0064] In addition, it should be understood that although this specification is described according to the embodiments, not each embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

[0065] The technical principle of this application has been described above in conjunction with specific embodiments. These descriptions are only for explaining the principle of this application and cannot be interpreted in any way as a limitation to the protection scope of this application. Based on the explanations here, those skilled in the art can think of other specific implementation manners of this application without creative labor, and these manners will all fall within the protection scope of this application.

Claims

1. A visual inspection device, characterized in that, Comprising: A conveying device (1), including a mounting frame (11) and a conveying mechanism (12) mounted on the mounting frame (11), the conveying mechanism (12) being used for conveying tableware; A photographing device (2), arranged below the conveying mechanism (12); the photographing device (2) includes a bottom photographing camera (22), a side photographing camera (21) and a light-transmitting cover plate (23), the light-transmitting cover plate (23) covering above the bottom photographing camera (22), the bottom photographing camera (22) being able to photograph the bottom surface of the tableware through the light-transmitting cover plate (23), and the side photographing camera (21) being able to photograph the side surface of the tableware; A blowing mechanism (3), arranged on one side of the light-transmitting cover plate (23), for blowing air onto the upper surface of the light-transmitting cover plate (23) to clean the light-transmitting cover plate (23).

2. The visual inspection device according to claim 1, wherein It further includes an equipment platform (4), the conveying device (1) and the photographing device (2) both being mounted on the equipment platform (4); the blowing mechanism (3) includes a connecting head (31), a fixed seat (32), an air pipe (33) and a nozzle (34) connected in sequence, the fixed seat (32) being fixed to the equipment platform (4), the fixed seat (32) being provided with a ventilation passage, the connecting head (31) and the air pipe (33) both being communicated with the ventilation passage; the connecting head (31) being used for connecting with an air source pipeline.

3. The visual inspection device according to claim 2, wherein The air pipe (33) is a universal joint pipe.

4. The visual inspection device according to claim 2, wherein, The fixed seat (32) has a fixing hole, and a bolt passes through the fixing hole and is connected to the equipment platform (4) to fix the fixed seat (32) to the equipment platform (4).

5. The visual inspection device according to claim 1, characterized in that, There are two sets of the photographing devices (2), and two sets of the blowing mechanisms (3) are correspondingly arranged; a bottom light source (5) is arranged in one set of the photographing devices (2), the bottom light source (5) being arranged below the light-transmitting cover plate (23) for illuminating the lower surface of the tableware upwards; a top light source (6) is arranged above the other set of the photographing devices (2), the top light source (6) being located above the conveying mechanism (12) for illuminating the upper surface of the tableware downwards.

6. The visual inspection device according to claim 5, wherein The bottom light source (5) is arranged on the lower side of the light-transmitting cover plate (23), and a light-transmitting hole for avoiding the view-finding of the bottom photographing camera (22) is provided at its center.

7. The visual detection device according to claim 5, characterized in that, The top light source (6) includes a top plate light source (61) and a top ring light source (62), the top plate light source (61) being located above the top ring light source (62), the top plate light source (61) being used for illuminating the top surface of the tableware, and the top ring light source (62) being used for illuminating the side surface of the tableware.

8. The visual inspection device according to claim 1, wherein The conveying mechanism (12) includes two symmetrically arranged conveying units. Each conveying unit includes a mounting strip (121), a guide wheel (122), and a conveyor belt (123). A plurality of the guide wheels (122) are rotatably mounted on the mounting strip (121), and the conveyor belt (123) is sleeved outside the guide wheels (122). The two conveying units clamp the tableware through the conveyor belt (123), and the running conveyor belt (123) pushes the tableware forward to achieve the conveying purpose.

9. The visual detection device according to claim 8, characterized in that, The conveying device (1) further includes a spacing adjustment mechanism (13) mounted on the mounting frame (11). The spacing adjustment mechanism (13) includes a mounting plate (132), a guide rail (133), a slider (134), and a spacing adjustment component (131). The mounting plate (132) is mounted on the mounting frame (11), the guide rail (133) is fixedly arranged on the mounting plate (132), the two mounting strips (121) are respectively connected with the slider (134), the slider (134) is slidably connected to the guide rail (133), and the spacing adjustment component (131) connects the two mounting strips (121). The two mounting strips (121) can be driven to approach or move away from each other through the spacing adjustment component (131), so as to adjust the spacing between the two conveying units.

10. The visual inspection device according to claim 9, wherein, The mounting plate (132) is slidably mounted on the mounting frame (11) and can move up and down relative to the mounting frame (11). The conveying device (1) further includes a height adjustment mechanism (14) mounted on the mounting frame (11). The height adjustment mechanism (14) includes a fixing plate (142) and a height adjustment component (141). The fixing plate (142) is fixed to the top of the mounting frame (11), and the height adjustment component (141) connects the fixing plate (142) and the mounting plate (132). The mounting plate (132) can be driven to lift relative to the fixing plate (142) through the height adjustment component (141), so as to adjust the height of the conveying mechanism (12).

Images