A glass internal stress detection device

Abstract

This invention discloses a glass internal stress detection device, comprising: a glass conveying roller frame, an observation platform, a first guide rod, a second guide rod, a polarizer frame, and a detection light source. The glass conveying roller frame is installed on the ground and is used to convey raw glass sheets. The observation platform spans the glass conveying roller frame and is equipped with railings. The first and second guide rods are respectively fixed to the railings. The polarizer frame is slidably mounted on one side of the first and second guide rods. This invention utilizes an observation platform spanning the glass conveying roller frame and a polarizer frame that can slide along the first and second guide rods. Inspectors can observe the stress distribution in the glass through the polarizers on the frame. During observation, there is no need to hold the polarizers, reducing the labor intensity of the inspectors. It also facilitates communication via walkie-talkie while observing the stress distribution, improving work efficiency.

Description

Technical Field

[0001] This utility model relates to the technical field of float glass production equipment, and in particular to a glass internal stress detection device. Background Technology

[0002] Currently, the float glass process can produce glass panes with widths exceeding 3 meters. Due to the high hardness of the glass, internal stress can easily develop between different areas during cooling due to variations in cooling rates. Annealing is then required during glass production. The stress distribution after annealing significantly affects cold-end cutting; excessive or insufficient stress distribution can cause severe quality defects at the glass cutting edge, and may also lead to glass cracking or spontaneous breakage during cutting, disrupting normal production. Therefore, the annealing process must be adjusted according to the stress distribution of the glass. For example, Chinese Patent Application No. 202310743238.2 discloses an online detection device and method for stress spots in tempered glass, including a light source module, an imaging module, a control module, and an image display module. The imaging module and the control module are electrically connected; the image display module is electrically connected to the imaging module; the light source module emits polarized light, which enters the tempered glass from a direction parallel to the thickness of the tempered glass; the imaging module can scan and image the tempered glass using the polarized light transmitted through it; the control module controls the frequency and duration of the scanning and imaging of the tempered glass by the imaging module; and the image display module displays the image received from the imaging module. This device utilizes the principle of different refractive indices in the stress regions of the glass. After adjusting the light from the light source through a polarizer, the stress distribution is obtained after imaging by the imaging component. However, for wide glass, due to the limited viewing angle of the imaging module, it is impossible to detect the glass across the entire span under fixed conditions. During the commissioning of the annealing furnace, the stress distribution of the glass is usually checked manually before the annealing process is adjusted. The inspector can only check the stress distribution of the glass through a polarizer. In order to keep the polarizer flat, it is usually fixed in a frame. The inspector will get tired after holding it for a long time. Moreover, the inspection situation needs to be reported to the control room via walkie-talkie. Therefore, a glass internal stress detection device is needed. The upper polarizer frame can slide on the observation platform without being held by hand, which reduces the labor intensity of the inspector and makes it easier for workers to observe the stress distribution and report their work, thus improving work efficiency. Utility Model Content

[0003] To address the aforementioned issues, this invention proposes a glass internal stress detection device. The upper polarizing filter frame can slide on the observation platform without being held by hand, reducing the labor intensity of the testing personnel and facilitating workers to report on their work while observing stress distribution, thereby improving work efficiency.

[0004] This utility model is achieved through the following technical solution:

[0005] This utility model proposes a glass internal stress detection device, comprising: a glass conveying roller frame, an observation platform, a first guide rod, a second guide rod, a polarizer frame, and a detection light source. The glass conveying roller frame is installed on the ground and is used to convey raw glass sheets. The observation platform spans the glass conveying roller frame and is equipped with railings. The first guide rod and the second guide rod are respectively fixed to the railings. The polarizer frame is slidably mounted on the first guide rod and the second guide rod on one side. A detection light source is located below the glass conveying roller frame.

[0006] Furthermore, the longitudinal direction of the observation platform is perpendicular to the movement direction of the glass conveying roller frame, and the first guide rod and the second guide rod are parallel to the longitudinal direction of the observation platform. The first guide rod and the second guide rod are respectively connected to the railing through connecting blocks.

[0007] Furthermore, the polarizer holder is provided with a C-shaped portion, and the upper and lower parts of the polarizer holder are slidably mounted on the first guide rod and the second guide rod through the C-shaped portion, respectively.

[0008] Furthermore, an opening is provided on one side of the C-shaped portion, and the width of the opening is greater than the thickness of the connecting block.

[0009] Furthermore, a polarizer is provided in the middle of the polarizer holder, and handles are provided on both sides of the polarizer holder.

[0010] Furthermore, a climbing ladder is provided on one side of the observation platform.

[0011] Furthermore, the detection light source includes a housing, an LED light, and a polarizer. The housing is located below the conveyor rollers on the glass conveyor roller frame, the LED light is installed at the lower part of the housing, and the polarizer is installed at the upper part of the housing.

[0012] The beneficial effects of this utility model are as follows: An observation platform spans the glass conveyor roller frame, and a polarizer frame that can slide along the first guide rod and the second guide rod is set on the observation platform. The inspection personnel can observe the stress distribution of the glass through the polarizer on the polarizer frame. During the observation, there is no need to hold the polarizer by hand, which reduces the labor intensity of the inspection personnel. It also makes it easier for workers to communicate through walkie-talkies while observing the stress distribution, thereby improving work efficiency. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model;

[0014] Figure 2 This is a schematic diagram of the structure of the polarizer holder of this utility model;

[0015] Figure 3This is a schematic diagram of the C-shaped part of this utility model;

[0016] Figure 4 This is a schematic diagram of the structure of the detection light source of this utility model;

[0017] In the diagram: 1-Glass conveyor roller frame, 2-Observation platform, 3-First guide rod, 4-Second guide rod, 5-Polarizer frame, 6-Detection light source, 7-Guardrail, 8-Connecting block, 9-C-shaped part, 10-Polarizer, 11-Handle, 12-Climbing ladder, 13-Housing, 14-LED light, 15-Polarizer. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Throughout the description, the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions. Obviously, the described embodiments are only a part of the embodiments of the present utility model, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0019] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0020] Furthermore, the use of terms such as "first" and "second" in this utility model is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, features defined with "first" and "second" may explicitly or implicitly include at least one of the stated features. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. If the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this utility model.

[0021] like Figures 1 to 4As shown, an embodiment of this utility model provides a glass internal stress detection device, including: a glass conveying roller frame 1, an observation platform 2, a first guide rod 3, a second guide rod 4, a polarizer frame 5, and a detection light source 6. The glass conveying roller frame 1 is installed on the ground and is used to convey the original glass sheet; the observation platform 2 spans the glass conveying roller frame 1 and is provided with railings 7, with the first guide rod 3 and the second guide rod 4 respectively fixed on the railings 7; the polarizer frame 5 is slidably installed on one side of the first guide rod 3 and the second guide rod 4 respectively; the detection light source 6 is provided below the glass conveying roller frame 1, and the detection light source 6 is located below the polarizer frame 5.

[0022] The refractive index varies in different stress areas of the glass. After the light from the detection light source 6 is processed by the polarizer 15, the detection light with the same vibration direction is obtained. After these detection lights pass through the glass, the polarization direction of the light in some areas changes due to the different refractive indices. After observation through the polarizer 10, the difference between the stress concentration point in the glass and the surrounding glass can be observed. This device uses this principle to detect the distribution of stress in the glass. The glass sheets annealed in the annealing furnace can reach a width of 4m. After being driven by the glass conveyor roller frame 1, they pass under the observation platform 2. During process debugging, the glass conveyor roller frame 1 can hold the glass sheets, while workers stand on the observation platform 2 and observe the stress distribution of the glass through the polarizers 10 on the polarizer frame 5. When observing different positions, the polarizer frame 5 can be moved along the first guide rod 3 and the second guide rod 4 by the handle 11 to facilitate observation of the entire glass sheet. The polarizer frame 5 is supported by the first guide rod 3 and the second guide rod 4, eliminating the need for workers to hold the polarizers during observation, reducing arm fatigue. Furthermore, workers can communicate with the control room via walkie-talkie to adjust the annealing furnace process. The polarizers 10 are fixed by the polarizer frame 5, preventing them from twisting or deforming, thus facilitating observation and improving work efficiency.

[0023] In a preferred embodiment, the longitudinal direction of the observation platform 2 is perpendicular to the movement direction of the glass conveying roller frame 1, and the first guide rod 3 and the second guide rod 4 are parallel to the longitudinal direction of the observation platform 2. The first guide rod 3 and the second guide rod 4 are respectively connected to the railing 7 through the connecting block 8, so that the polarizer frame 5 can slide along the first guide rod 3 and the second guide rod 4 on the observation platform 2 to meet the needs of observing various parts of the large-width glass sheet and solve the problem that the imaging module cannot detect the large-width glass sheet.

[0024] In a preferred embodiment, such as Figure 3As shown, the polarizer holder 5 is provided with a C-shaped part 9. The upper and lower parts of the polarizer holder 5 are slidably mounted on the first guide rod 3 and the second guide rod 4 through the C-shaped part 9, respectively. This allows the polarizer holder 5 to slide on the first guide rod 3 and the second guide rod 4 through the C-shaped part 9. The C-shaped part 9 is lubricated with the first guide rod 3 and the second guide rod 4 through lubricating oil, which can reduce the resistance of the C-shaped part 9 sliding on the first guide rod 3 and the second guide rod 4 and ensure that the polarizer holder 5 can slide synchronously on the first guide rod 3 and the second guide rod 4, thus facilitating the sliding of the polarizer holder 5.

[0025] In one specific embodiment, the C-shaped part 9 has an opening on one side, the width of which is greater than the thickness of the connecting block 8. In order to prevent the first guide rod 3 and the second guide rod 4 from bending, the first guide rod 3 and the second guide rod 4 are connected to the railing 7 through the connecting block 8 in the middle. The connecting block 8 can pass through the opening to ensure that the C-shaped part 9 can slide on the first guide rod 3 and the second guide rod 4.

[0026] Specifically, such as Figure 2 As shown, a polarizer 10 is provided in the middle of the polarizer holder 5. After the polarizer 10 is fixed in the middle of the polarizer holder 5, it can be ensured that the polarizer 10 is straight and avoids twisting and deformation affecting observation. Handles 11 are provided on both sides of the polarizer holder 5 to facilitate pulling the polarizer holder 5 to slide on the first guide rod 3 and the second guide rod 4.

[0027] Specifically, a climbing ladder 12 is provided on one side of the observation platform 2 to facilitate workers climbing onto the observation platform 2.

[0028] In a preferred embodiment, such as Figure 4 As shown, the detection light source 6 includes a housing 13, an LED lamp 14, and a polarizer 15. The housing 13 is located below the conveying rollers on the glass conveying roller frame 1. The LED lamp 14 is installed at the lower part of the housing 13, and the polarizer 15 is installed at the upper part of the housing 13. After the light emitted by the LED lamp 14 is processed by the polarizer 15, detection light with the same polarization direction is obtained, which is convenient for detecting internal stress.

[0029] Of course, there may be other implementations of this utility model. Based on this implementation, other implementations obtained by those skilled in the art without any creative effort are all within the scope of protection of this utility model.

Claims

1. A glass internal stress detection device, characterized in that, include: The glass conveyor roller frame (1), observation platform (2), first guide rod (3), second guide rod (4), polarizer frame (5), and detection light source (6) are provided. The glass conveyor roller frame (1) is installed on the ground and is used to convey the original glass sheet. The observation platform (2) spans the glass conveyor roller frame (1) and is equipped with railings (7). The first guide rod (3) and the second guide rod (4) are fixed on the railings (7) respectively. The polarizer frame (5) is slidably installed on one side of the first guide rod (3) and the second guide rod (4) respectively. The detection light source (6) is provided below the glass conveyor roller frame (1) and is located below the polarizer frame (5).

2. The glass internal stress detection device according to claim 1, characterized in that, The longitudinal direction of the observation platform (2) is perpendicular to the movement direction of the glass conveying roller frame (1). The first guide rod (3) and the second guide rod (4) are parallel to the longitudinal direction of the observation platform (2). The first guide rod (3) and the second guide rod (4) are respectively connected to the railing (7) through the connecting block (8).

3. The glass internal stress detection device according to claim 2, characterized in that, The polarizer holder (5) is provided with a C-shaped part (9), and the upper and lower parts of the polarizer holder (5) are slidably mounted on the first guide rod (3) and the second guide rod (4) through the C-shaped part (9) respectively.

4. The glass internal stress detection device according to claim 3, characterized in that, The C-shaped part (9) has an opening on one side, and the width of the opening is greater than the thickness of the connecting block (8).

5. The glass internal stress detection device according to claim 4, characterized in that, The polarizer holder (5) has a polarizer (10) in the middle and handles (11) on both sides.

6. The glass internal stress detection device according to claim 1, characterized in that, A climbing ladder (12) is provided on one side of the observation platform (2).

7. The glass internal stress detection device according to claim 1, characterized in that, The detection light source (6) includes a housing (13), an LED lamp (14), and a polarizer (15). The housing (13) is located below the glass conveying rollers on the glass conveying roller frame (1). The LED lamp (14) is installed on the lower part of the housing (13), and the polarizer (15) is installed on the upper part of the housing (13).

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