An intelligent detection light box for automobile glass ink defects based on photoelectric induction

Abstract

The utility model belongs to the automobile glass detection technical field, concretely is a kind of automobile glass ink defect intelligent detection light box based on photoelectricity response. Including main body frame, its inside is provided with LED lamp strip, the LED lamp strip is arranged along the profile of the contour of the curved surface glass to be detected;Induction module is set on the main body frame for sensing whether glass is placed in detection station;Control unit is electrically connected with the induction module and LED lamp strip, and the control unit includes the relay for controlling the power-on and power-off of LED lamp strip and the counter for counting the number of on-off times;Power module is connected with external power supply, for converting 220V AC into 12V DC and power supply for each electrical component of system.The utility model can satisfy the detection demand of multiple curved surface glass, and comprehensively solve the problems, such as low efficiency, strong subjectivity, poor safety and untraceability, existing in traditional manual detection mode.

Description

Technical Field

[0001] This utility model belongs to the field of automotive glass inspection technology, specifically an intelligent detection lightbox for automotive glass ink defects based on photoelectric sensing. Background Technology

[0002] Currently, the quality inspection of black edges on automotive glass ink mainly relies on manual visual inspection by operators, supplemented by simple lighting devices. This traditional inspection method has several significant problems: First, the testing efficiency is low. Operators need to frequently switch the lights on and off manually and repeatedly adjust the glass position and observation angle. The whole process is cumbersome and repetitive, which severely restricts the testing pace and makes it difficult to meet the high-speed, high-throughput testing requirements of modern production lines.

[0003] Secondly, the stability of quality assessment is poor. Because it relies on subjective human judgment, different operators have different standards for perceiving defects, and even the same person may make misjudgments or omissions when fatigued. Especially in identifying key quality indicators such as the uniformity of light density in ink black edges, micro-scratches, and edge burrs, the lack of objective and consistent quantitative criteria leads to insufficient detection accuracy and reliability.

[0004] Furthermore, the existing testing environment presents significant safety hazards. Some simple lighting devices have high light intensity and lack effective light shielding or diffusion treatment. Prolonged direct exposure to the eyes can easily lead to visual fatigue, and in severe cases, may even damage the operator's vision.

[0005] Finally, traditional methods lack data-driven management and traceability capabilities. Real-time counting is impossible during the testing process, making it difficult to accurately calculate daily and shift-specific testing quantities and pass rates, and even more difficult to generate systematic quality reports. This not only affects transparent management of production efficiency but also creates difficulties for subsequent quality traceability and process optimization.

[0006] Therefore, there is an urgent need to develop a detection device that integrates automated control and intelligent image recognition technology to effectively solve the above problems, improve detection efficiency and consistency, ensure the safety of personnel operation, and realize the digital collection and traceability analysis of quality data. Summary of the Invention

[0007] To address the aforementioned problems, this invention provides an intelligent detection lightbox for automotive glass ink defects based on photoelectric sensing.

[0008] This utility model adopts the following technical solution: an automotive glass ink detection light box, comprising: The main frame has an LED light strip inside, which is arranged along the contour of the curved glass to be tested; A sensing module, mounted on the main frame, is used to sense whether the glass is placed at the detection station; The control unit is electrically connected to the sensing module and the LED strip. The control unit includes a relay for controlling the LED strip to be powered on and off, and a counter for counting the number of times the power is switched on and off. The power module connects to an external power source and is used to convert 220V AC power to 12V DC power to power the various electrical components of the system.

[0009] In some embodiments, the LED light strip uses high-brightness surface-mount LEDs with a color temperature of 5000K-6500K.

[0010] In some embodiments, the LED strip has a ring structure adapted to the curvature of the glass surface to be tested.

[0011] In some embodiments, the sensing module is a diffuse reflection infrared photoelectric sensor with a detection distance of 5-30cm.

[0012] In some embodiments, the sensing module is a photoelectric sensor or a mechanical contact switch, which is disposed at the edge of the glass placement area.

[0013] In some embodiments, the relay is a 12V single-pole double-throw relay with a load current of not less than 5A.

[0014] In some embodiments, the counter is an LCD display power-on / off counter with a counting range of 0-99999, and is equipped with a manual reset button.

[0015] In some embodiments, the power module is a 220V AC to 12V DC power adapter.

[0016] In some embodiments, the main framework includes: A support frame for mounting on the ground; The mounting surface is provided on the support frame and is used to mount the LED light strip, the sensing module and the curved glass to be tested; A bracket, which is disposed on the lower side of the mounting surface, is used to support the curved glass to be tested; The positioning post is located on one side of the mounting surface and is used to position the curved glass to be tested.

[0017] In some embodiments, an outer shield and an inner shield are further provided on the mounting surface, wherein the outer shield is disposed on the outside of the LED light strip and the inner shield is disposed on the inside of the LED light strip.

[0018] Compared with the prior art, the present invention has the following beneficial effects: The automotive glass ink inspection lightbox provided by this utility model automates the inspection process through the linkage of the sensing module and the control unit, significantly improving inspection efficiency. Its specially arranged high-brightness LED light strips provide a uniform and stable lighting environment, effectively enhancing the accuracy and consistency of defect identification. A non-contact triggering mechanism ensures operational safety. An integrated counter enables automated statistics and traceability of production data. Its modular structural design offers excellent versatility and adaptability, meeting the inspection needs of various curved glass surfaces. It comprehensively solves the problems of low efficiency, strong subjectivity, poor safety, and lack of traceability inherent in traditional manual inspection methods. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the rear side of the present invention; In the diagram, 1-main frame, 2-LED light strip, 3-sensing module, 4-relay, 5-counter, 6-power module. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments of this utility model will be clearly and completely described below. Obviously, the described embodiments are some embodiments of this utility model, but not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0021] like Figure 1 , 2 As shown, an automotive glass ink testing light box includes: a main frame 1, inside which an LED light strip 2 is arranged along the contour of the curved glass to be tested; a sensing module 3, disposed on the main frame 1 for sensing whether the glass is placed at the testing station; a control unit, electrically connected to the sensing module 3 and the LED light strip 2, the control unit including a relay 4 for controlling the power on and off of the LED light strip 2 and a counter 5 for counting the number of power on and off cycles; and a power supply module 6, connected to an external power source, for converting 220V AC power to 12V DC power and supplying power to the various electrical components of the system.

[0022] Specifically, the main frame 1 is constructed from welded metal profiles or assembled from aluminum profiles, and has an overall box-type or frame-type structure with a matte finish to avoid glare interference. A testing station is located on the upper side of the main frame for placing the automotive glass to be tested.

[0023] The LED light strip 2 is fixed inside the main frame 1, located directly below the testing station. This light strip uses high-brightness 5730 or 5050 type SMD LEDs with a color temperature of 5000K-6500K pure white light to ensure accurate color rendering and uniform brightness. The LED light strip 2 is arranged strictly according to the black edge contour of the curved glass to be tested: for curved glass, the light strip is arranged in a ring with the corresponding curvature; for irregularly shaped glass, it is adapted to its edge shape to ensure that light can evenly penetrate the ink area from the bottom, clearly presenting defects such as differences in light density, scratches, and printing omissions.

[0024] Specifically, sensing module 3 is a diffuse reflection infrared photoelectric sensor with a detection distance of 5-30cm.

[0025] Specifically, the sensing module 3 is a photoelectric sensor or a mechanical contact switch, which is located at the edge of the glass placement area.

[0026] This embodiment provides two preferred solutions: one is a diffuse reflection infrared photoelectric sensor (such as the E3F-DS series), with an adjustable detection distance of 5-30cm and a response time of ≤10ms. When aligned with the glass placement area, the sensor receives the reflected signal and triggers an output when the glass is placed in. The other is a mechanical contact switch, with its contacts slightly higher than the bearing surface, triggered when the glass is pressed down. The output signal of the sensing module 3 is connected to the control unit.

[0027] Specifically, relay 4 is a 12V single-pole double-throw relay with a load current of not less than 5A. Counter 5 is an LCD power-on / off counter with a counting range of 0-99999 and a manual reset button.

[0028] Relay 4 is a single-pole double-throw relay with a coil voltage of 12V and a contact load capacity of ≥5A, sufficient to drive the LED strip 2. The coil of relay 4 is driven by the control signal of the sensing module 3: when glass is sensed, the coil is energized, the normally open contact closes, and the LED strip lights up; after the glass is removed, the coil is de-energized, the contact opens, and the LED strip turns off. The counter 5 is an LCD-displayed on / off counter with a counting range of 0-99999. Its counting input terminal is connected in parallel with the coil circuit or contact status of relay 4. Each time the relay operates, the counter automatically increments by 1, thereby achieving automatic counting of detections. The counter 5 panel has a reset button for easy periodic resetting.

[0029] Specifically, power module 6 is a 220V AC to 12V DC power adapter.

[0030] Specifically, the main frame 1 includes: a support frame 1.1, which is used to be set on the ground; a mounting surface 1.2, which is set on the support frame 1.1 and is used to install the LED light strip 2, the sensing module 3 and the curved glass to be tested; a bracket 1.3, which is set on the lower side of the mounting surface 1.2 and is used to support the curved glass to be tested; and a positioning post 1.4, which is set on one side of the mounting surface 1.2 and is used to position the curved glass to be tested.

[0031] Among them, the support frame 1.1 can be a frame with multiple legs, and the mounting surface 1.2 is inclined to facilitate the installation of the curved glass to be tested.

[0032] The mounting surface 1.2 is also provided with an outer shield 1.5 and an inner shield 1.6. The outer shield 1.5 is located on the outside of the LED light strip 2, and the inner shield 1.6 is located on the inside of the LED light strip 2.

[0033] The outer shield 1.5 is higher, which can block the light emitted outward by the LED light strip 2, while the inner shield 1.6 is lower, allowing the inner shield 1.6 of the LED light strip 2 to enter the inner side of the inner shield 1.6. The inner side of the inner shield 1.6 is the glass placement area.

[0034] The working process of this utility model is as follows: First, the light box is connected to mains power, power module 6 starts working, and the system is in standby mode. The operator places the car glass on the inspection station, and sensor module 3 immediately triggers and outputs a signal, controlling relay 4 to engage. LED strip 2 illuminates instantly, lighting the black edge area of ​​the glass, making it easier for inspectors to observe from above. After inspection, the glass is removed, the sensor signal disappears, relay 4 disengages, LED strip 2 automatically turns off, and counter 5 increments by one. The entire process requires no manual operation of the light switch, achieving automated, highly efficient, and traceable inspection.

[0035] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. An automotive glass ink detection light box, characterized by, include: The main frame (1) is equipped with an LED light strip (2) inside, and the LED light strip (2) is arranged along the contour of the curved glass to be tested; The sensing module (3) is set on the main frame (1) to sense whether the glass is placed at the detection station; The control unit is electrically connected to the sensing module (3) and the LED light strip (2). The control unit includes a relay (4) for controlling the power on and power off of the LED light strip (2) and a counter (5) for counting the number of times the power is turned on and off. The power module (6) is connected to an external power source to convert 220V AC power into 12V DC power and supply power to the various electrical components of the system.

2. The automotive glass ink detection light box of claim 1, wherein, The LED light strip (2) uses high-brightness surface-mount LEDs with a color temperature of 5000K-6500K.

3. The automotive glass ink detection light box according to claim 1 or 2, characterized in that, The LED light strip (2) has a ring structure that matches the curvature of the glass surface to be tested.

4. The automotive glass ink detection light box of claim 1, wherein, The sensing module (3) is a diffuse reflection infrared photoelectric sensor with a detection distance of 5-30cm.

5. The automotive glass ink detection light box of claim 1, wherein, The sensing module (3) is a photoelectric sensor or a mechanical contact switch, which is located at the edge of the glass placement area.

6. The automotive glass ink detection light box of claim 1, wherein, The relay (4) is a 12V single-pole double-throw relay with a load current of not less than 5A.

7. The automotive glass ink testing light box according to claim 1, characterized in that, The counter (5) is an LCD power-on / off counter with a counting range of 0-99999 and a manual reset button.

8. The automotive glass ink detection light box of claim 1, wherein, The power module (6) is a 220V AC to 12V DC power adapter.

9. The automotive glass ink detection light box of claim 1, wherein, The main framework (1) includes: A support frame (1.1) for mounting on the ground; Mounting surface (1.2), which is set on support frame (1.1), is used to mount LED light strip (2), sensing module (3) and curved glass to be tested; A bracket (1.3) is disposed on the lower side of the mounting surface (1.2) and is used to support the curved glass to be tested; Positioning post (1.4), which is located on one side of the mounting surface (1.2), is used to position the curved glass to be tested.

10. The automotive glass ink detection light box of claim 9, wherein, The mounting surface (1.2) is also provided with an outer shield (1.5) and an inner shield (1.6). The outer shield (1.5) is located on the outside of the LED light strip (2); the inner shield (1.6) is located on the inside of the LED light strip (2).

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