A glass plate scratch detection and inkjet marking device

Abstract

This invention provides a glass plate scratch detection and inkjet marking device, relating to the field of glass inspection equipment technology. It includes a horizontally arranged base frame at the bottom of the entire device. Glass plate conveying rollers are arranged along the length of the base frame. A support beam extends laterally through the third glass plate conveying roller directly in front of the base frame. A light source system and a high-resolution line scan camera are respectively mounted on the support beam. An inkjet system extends laterally through the middle of the base frame. This invention automates the entire process from glass plate conveying and scratch detection to inkjet marking, eliminating the need for frequent manual intervention, significantly reducing operating time and labor costs, increasing the processing speed of glass plates on the production line, and accelerating the overall production process.

Description

Technical Field

[0001] This utility model relates to the field of glass testing equipment technology, and in particular to a glass plate scratch detection and inkjet marking device. Background Technology

[0002] In the glass manufacturing and processing industry, the detection and marking of surface defects (such as scratches, cracks, and bubbles) is a crucial aspect of quality control. Traditional methods rely on manual visual inspection and marking, requiring the inspection of each glass surface individually. Processing speed is limited by human eye fatigue and distraction, and the criteria for judging scratches vary from person to person, leading to missed or misjudged defects. Furthermore, marking efficiency is low after glass inspection, making data traceability difficult. With the development of industrial automation, inspection technologies based on machine vision and intelligent algorithms are gradually becoming mainstream. Utility Model Content

[0003] This invention provides a glass plate scratch detection and inkjet marking device. The entire process, from glass plate conveying and scratch detection to inkjet marking, is automated and requires no frequent manual intervention.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows: A glass plate scratch detection and inkjet marking device includes a base frame horizontally arranged at the bottom of the entire device. A glass plate conveying roller is arranged along the length of the base frame. A support beam extends laterally through the third glass plate conveying roller at the front of the base frame. A light source system and a high-resolution line scan camera are respectively installed on the support beam. An inkjet system extends laterally through the middle of the base frame.

[0005] Furthermore, the light source system includes a linear light source, which is fixed to the back plate of the light source by an L-shaped sheet metal part. The back plate of the light source is connected to a cylindrical support frame by a linear bearing supported by an optical axis. The cylindrical support frame is connected to the support beam by a fixed base.

[0006] Furthermore, the high-resolution line scan camera is connected to the support beam via a camera mounting base, and the high-resolution line scan camera is vertically suspended directly above the glass plate conveying roller.

[0007] Furthermore, the inkjet system includes a servo motor, an electric cylinder beam, a linear slide rail, an inkjet connection plate, a coding machine connection vertical plate, and an inkjet printer. The inkjet printer is fixedly installed at the end of the coding machine connection vertical plate and is connected to the linear slide rail through the inkjet connection plate. The linear slide rail is connected to the servo motor and is used to drive the inkjet printer to move laterally.

[0008] Furthermore, an electric cylinder balance beam is fixedly installed at the bottom of the linear slide rail to support the inkjet system, and a coaxial speed detector is installed in the middle of the electric cylinder balance beam.

[0009] Furthermore, it also includes an encoder and a PLC, the encoder being electrically connected to the PLC, and the PLC being connected to a high-resolution line scan camera and an inkjet system respectively, to ensure that the detection and marking actions are strictly matched with the glass plate movement speed.

[0010] The beneficial effects of this utility model are as follows: This invention automates the entire process from glass plate conveying and scratch detection to inkjet marking, eliminating the need for frequent manual intervention. Compared to manual inspection and marking, it significantly reduces operation time and labor costs, increases the processing speed of glass plates on the production line, and accelerates the overall production process.

[0011] Because scratches can be detected and marked in a timely manner, scratched glass sheets can be treated specifically in subsequent production stages, such as repairing or scrapping them. This avoids processing scratched glass sheets without their knowledge, thereby reducing material waste caused by substandard final products and lowering raw material costs.

[0012] Automated inspection and labeling processes reduce the need for manual inspection and labeling personnel, eliminating the need for companies to hire large numbers of people for this task and lowering labor costs. At the same time, it also reduces errors and losses caused by factors such as human fatigue, indirectly lowering production costs. Attached Figure Description

[0013] To more clearly illustrate the embodiments of this utility model or the technical solutions of the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0015] Figure 2 This is a three-dimensional structural diagram of a portion of the present utility model.

[0016] Figure 3 This is a three-dimensional structural diagram of the light source system of this utility model.

[0017] Figure 4 This is a three-dimensional structural diagram of the inkjet system of this utility model.

[0018] Explanation of icon numbers: 1. Basic main frame; 2. Glass plate conveyor roller; 3. High-resolution line scan camera; 4. Camera mounting base; 5. Support beam; 6. Light source system; 61. Line light source; 62. Light source backplate; 63. L-shaped sheet metal part; 64. Optical axis support linear bearing; 65. Cylindrical support frame; 66. Fixing base; 7. Inkjet system; 71. Servo motor; 72. Electric cylinder counterbeam; 73. Linear slide rail; 74. Inkjet connection plate; 75. Marker connection vertical plate; 76. Inkjet printer; 77. Coaxial speed detector. Detailed Implementation

[0019] It should be noted that, where there is no conflict, the embodiments and features in the embodiments of this utility model can be combined with each other. The present utility model will now be described in detail with reference to the accompanying drawings and embodiments.

[0020] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit this utility model or its application or use. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0021] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to the present invention. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0022] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps described in these embodiments do not limit the scope of this invention. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following figures denote similar items; therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0023] In the description of this utility model, it should be understood that the orientation or positional relationship indicated by directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" is usually based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this utility model and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this utility model. The directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0024] For ease of description, spatial relative terms such as "above," "over," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation besides the orientation of the device as described in the figures. For example, if the device in the figures is inverted, a device described as "above" or "above" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0025] This utility model provides a technical solution: a glass plate scratch detection and inkjet marking device, such as... Figure 1-4As shown, the device includes a basic main frame 1, horizontally positioned at the bottom of the entire apparatus, running through the detection and marking areas, and used for conveying glass plates. A glass plate conveying roller 2 is located along the entire length of the apparatus, on which the glass plates are placed. A drive motor is installed at one end of the glass plate conveying roller 2 and connected to the roller shaft of the conveyor belt via a transmission device, providing power for the conveying process. A support beam 5 extends laterally through the basic main frame 1, approximately at the third glass plate conveying roller, and is used for the fixed installation of the light source system 6 and the high-resolution line scan camera 3.

[0026] The light source system 6 includes: a linear light source 61, a light source backplate 62, an L-shaped sheet metal part 63, a linear bearing supporting the optical axis 64, a cylindrical support frame 65, and a fixed base 66. The linear light source 61 is fixed to the light source backplate 62 by the L-shaped sheet metal part 63. The light source backplate 62 is connected to the cylindrical support frame 65 by the linear bearing supporting the optical axis 64. Finally, it is connected to the support beam 5 of the device by the fixed base 66. Four sets are installed horizontally in a staggered manner to illuminate the glass plate downwards at a specific angle, so that scratches can be clearly displayed under the reflection or transmission of light.

[0027] The high-resolution line scan camera 3 is connected to the support beam 5 via the camera mounting base 4 and is vertically suspended directly above the glass conveying roller. Four sets are also installed horizontally in a staggered manner to cover the full width of the glass plate. The position and angle of the camera can be finely adjusted by adjusting screws and other components to maintain a certain angle and distance from the light source, ensuring that the area of ​​the glass plate surface illuminated by the light source can be clearly captured.

[0028] The inkjet system 7 runs horizontally through the middle of the main frame 1 and includes: a servo motor 71, an electric cylinder counterbeam 72, a linear guide rail 73, an inkjet connection plate 74, a printer connection vertical plate 75, and an inkjet printer 76. The inkjet printer 76 is fixedly mounted at the end of the printer connection vertical plate 75 and connected to the linear guide rail 73 via the inkjet connection plate 74 and other components. The servo motor 71 is connected to the end of the linear guide rail 73 to provide power, enabling the inkjet printer 76 to move left and right on the linear guide rail 73. The bottom of the linear guide rail 73 is fixedly mounted on the electric cylinder counterbeam 72, providing basic support for the entire system and achieving stability. A coaxial speed detector 77 is installed in the middle of the electric cylinder counterbeam 72. The moving speed and inkjet frequency of the inkjet printer 76 must be coordinated with the conveying speed of the conveying module. When a scratch is detected, the control system precisely controls the inkjet printer based on the scratch's location and conveying speed, marking the glass plate when it moves to the appropriate position, ensuring accurate marking.

[0029] It also includes an encoder and a PLC, the encoder being electrically connected to the PLC, and the PLC being connected to the high-resolution line scan camera 3 and the inkjet system 7 respectively, to ensure that the detection and marking actions are strictly matched with the glass plate moving speed.

[0030] The components of this glass plate scratch detection and inkjet marking device work closely together. Through reasonable positional, connection, and coordination relationships, it achieves efficient detection and accurate marking of glass plate scratches.

[0031] This device achieves fully automated defect detection and marking through the coordinated operation of three core technologies: machine vision for scratch recognition, motion control for precise positioning, and non-contact inkjet marking.

[0032] The following is a detailed explanation of its working principle: A variable frequency speed-regulating motor drives the glass plate conveying roller 2 on the main frame 1, feeding the glass plate into the detection area at a constant speed (e.g., 2 m / min). An encoder monitors the glass position in real time; when the front end of the glass reaches the detection area, it triggers a high-resolution line scan camera 3 to take a picture. Under the illumination of the system light source 6 at a specific angle, the high-resolution line scan camera 3 continuously scans along the width of the glass plate, covering the entire surface of the glass plate, highlighting the contrast of scratches and enhancing the ability to capture minute scratches. The encoder signal is synchronized with the high-resolution line scan camera 3 and the inkjet system 7 via a PLC (Programmable Logic Controller) to ensure that the detection and marking actions are strictly matched with the glass movement speed, avoiding positional deviation.

[0033] Upon detecting scratches on the glass surface, the inkjet system 7 activates. With the assistance of a coaxial speed sensor 77 and a linear guide rail 73, the inkjet printer 76 determines the speed and position of the moving glass panel. Then, based on the coordinate information transmitted by the detection system, it precisely prints marks near or on the scratches. This allows workers to quickly locate the scratched areas in subsequent production processes, facilitating targeted treatment of problematic glass panels, such as repair or disposal.

[0034] Based on factors such as the severity and number of scratches, the control system of the inspection device can distinguish the quality grade of glass by spraying different colors or patterns of ink through an inkjet system. For example, glass with minor scratches can be marked in green, indicating that it can be used again after simple treatment; glass with more severe scratches can be marked in red, indicating that more in-depth treatment is required or that it should be judged as a defective product. This visual differentiation method helps production personnel to quickly screen and classify glass, improving production efficiency and product quality control.

[0035] Encoder signals and PLCs are existing technologies and will not be described in detail in this application.

[0036] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A glass sheet scratch detection and inkjet marking apparatus characterized by, The application relates to a glass plate detection and marking device, which comprises a base body frame (1) horizontally arranged at the bottom of the whole device, a glass plate conveying roller (2) arranged in the length direction of the base body frame (1), and a support crossbeam (5) transversely penetrating the third glass plate conveying roller at the front of the base body frame (1); a light source system and a high-resolution linear array camera (3) are respectively installed on the support crossbeam (5); and an inkjet system (7) transversely penetrates the middle position of the base body frame (1).

2. The apparatus according to claim 1, wherein The light source system (6) comprises a linear light source (61) fixed on a light source back plate (62) through an L-shaped metal piece (63), the light source back plate (62) is connected with a cylindrical support frame (65) through an optical axis support linear bearing (64), and the cylindrical support frame (65) is connected with the support crossbeam (5) through a fixing base (66).

3. The apparatus according to claim 1, wherein The high-resolution linear array camera (3) is connected with the support crossbeam (5) through a camera mounting seat (4), and the high-resolution linear array camera (3) is vertically hung above the glass plate conveying roller (2).

4. The apparatus according to claim 1, wherein The inkjet system (7) comprises a servo motor (71), an electric cylinder balance beam (72), a linear slide rail (73), an inkjet connecting plate (74), an inkjet machine connecting vertical plate (75) and an inkjet machine (76), the inkjet machine (76) is fixedly installed at the end of the inkjet machine connecting vertical plate (75), is connected with the linear slide rail (73) through the inkjet connecting plate (74), and is connected with the servo motor (71) to drive the inkjet machine (76) to move laterally.

5. The apparatus according to claim 4, wherein The bottom of the linear slide rail (73) is fixedly installed with the electric cylinder balance beam (72) for supporting the inkjet system (7), and the middle portion of the electric cylinder balance beam (72) is installed with a coaxial speed detector (77).

6. The apparatus according to claim 1, wherein The application further comprises an encoder and a PLC, the encoder is electrically connected with the PLC, the PLC is connected with the high-resolution linear array camera (3) and the inkjet system (7) respectively, and the detection and marking actions are strictly matched with the glass plate moving speed.

Images