Glass annealing plate explosion detection system and detection method

Abstract

The invention discloses a glass annealing plate explosion detection system and detection method, and relates to the technical field of glass production, the glass annealing plate explosion detection system is used for detecting whether plate explosion occurs in the annealing process of glass, the glass annealing plate explosion detection system comprises an annealing kiln, a noise sensor, a monitoring device and an alarm device, the annealing kiln comprises a conveying roller way, a kiln body and a bearing piece, the kiln body covers the conveying roller way, the kiln body is provided with an annealing cavity, and the bearing piece is arranged below the conveying roller way and used for collecting the explosion plate glass; the noise sensor is arranged in the annealing cavity and used for detecting noise in the glass annealing process; the monitoring device is electrically connected with the noise sensor, and the monitoring device is used for monitoring the detection noise of the noise sensor; and the alarm device is electrically connected with the monitoring device. The technical scheme provided by the invention aims to improve the timeliness of finding the plate explosion in the glass annealing process by an operator.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of glass production, in particular to a glass annealing burst plate detection system and detection method. BACKGROUND

[0002] As the largest production method in the current market, float glass has become the dominant technology for flat glass production due to its high yield, large scale, and strong continuity. In the production of float glass, annealing process is an indispensable part. After forming, the glass needs to enter the annealing lehr for slow cooling to eliminate the internal stress of the glass.

[0003] Due to the difference in cooling speed between the middle and edge of the glass, glass may burst during annealing. In order to maintain the cooling speed of the glass within a certain range, the annealing lehr has a closed area. If the glass bursts in the closed area of the annealing lehr, the condition of the glass cannot be directly observed, and the operator is difficult to discover the burst problem in time, which leads to a long burst processing time and causes a large amount of glass scratches or even major production accidents such as glass jamming and roller blocking. SUMMARY

[0004] The main purpose of the present application is to provide a glass annealing burst plate detection system and detection method, which aims to improve the timeliness of the operator discovering the burst during the glass annealing process.

[0005] To achieve the above purpose, the present application provides a glass annealing burst plate detection system for checking whether the glass bursts during annealing, which comprises:

[0006] An annealing lehr, which comprises a conveying roller, a lehr body and a supporting member, the lehr body is arranged on the conveying roller, the lehr body is provided with an annealing cavity, and the supporting member is arranged below the conveying roller for collecting burst glass;

[0007] A noise sensor, which is arranged in the annealing cavity and is used for detecting noise in the glass annealing process;

[0008] A monitoring device, which is electrically connected with the noise sensor and is used for monitoring the detected noise of the noise sensor; and

[0009] An alarm device, which is electrically connected with the monitoring device.

[0010] In an embodiment, the monitoring device comprises a signal processing module and a display module, the signal processing module is used for receiving the detected noise of the noise sensor and judging whether to control the alarm device to operate according to the detected noise, and the display module is electrically connected with the signal processing module and is used for displaying the detected value in real time.

[0011] In an embodiment, the noise sensor comprises at least two groups, two groups of the noise sensor are arranged on two sides of the conveying roller, and each group of the noise sensor comprises a plurality of noise sensors which are arranged at intervals along the conveying direction of the conveying roller.

[0012] In an embodiment, the glass annealing plate detection system further comprises a vibration sensor arranged on the supporting member, the vibration sensor is used for detecting the vibration condition of the supporting member, and the vibration sensor is electrically connected with the monitoring device.

[0013] In an embodiment, the glass annealing plate detection system further comprises an infrared temperature sensor arranged on the kiln body and corresponding to the middle part of the conveying roller, the infrared temperature sensor is used for detecting the temperature of the glass, and the infrared temperature sensor is electrically connected with the monitoring device.

[0014] In an embodiment, the alarm device comprises a buzzer and an alarm lamp, the buzzer is used for issuing a sound alarm, and the alarm lamp is used for issuing a light alarm.

[0015] The application further provides a detection method using the glass annealing plate detection system, which comprises the following steps.

[0016] The preset noise decibel value is input into the signal processing module;

[0017] The noise of the glass falling into the supporting member during the annealing of the glass is collected by the noise sensor;

[0018] The detected noise decibel value collected by the noise sensor is extracted in real time by the signal processing module;

[0019] The signal processing module compares the preset noise decibel value and the detected noise decibel value in real time, if the detected noise decibel value is greater than or equal to the preset noise decibel value, the signal processing module judges whether the mutation of the detected noise conforms to the preset mutation characteristic;

[0020] If yes, the signal processing module controls the alarm module to operate.

[0021] In an embodiment, the preset mutation characteristic comprises a preset time and a preset change value, and the step of judging whether the mutation of the detected noise conforms to the preset characteristic by the signal processing module comprises:

[0022] inputting the preset time and the preset variation value into a signal processing module;

[0023] judging, by the signal processing module, whether the variation value of the noise decibel value exceeds the preset variation value within the preset time;

[0024] if the variation value of the noise decibel value exceeds the preset variation value within the preset time, the signal processing module judges that the board is exploding.

[0025] In an embodiment, the detection method further comprises the following steps:

[0026] collecting vibration characteristics of the supporting member by a vibration sensor;

[0027] extracting the vibration characteristics collected by the vibration sensor in real time by a signal processing module;

[0028] judging, by the signal processing module, whether the vibration characteristics of the supporting member are mutated;

[0029] if mutated, the signal processing module judges that the board is exploding, and controls the alarm module to operate.

[0030] In an embodiment, the detection method further comprises the following steps:

[0031] collecting temperature characteristics of the glass by an infrared temperature sensor;

[0032] extracting the temperature characteristics collected by the infrared temperature sensor in real time by a signal processing module;

[0033] judging, by the signal processing module, whether the temperature characteristics are mutated;

[0034] if mutated, the signal processing module judges that the board is exploding, and controls the alarm module to operate.

[0035] The technical solution of this invention uses a conveyor roller to transport glass, allowing it to pass through different annealing zones sequentially to eliminate internal stress. A kiln body is shrouded within the conveyor rollers and also includes an annealing chamber to prevent direct contact between the glass and outside air, which could cause a sudden temperature drop and cracking. However, due to poor annealing quality or uneven glass temperature during annealing, glass breakage may occur. Understandably, because the annealing chamber is nearly closed during annealing, the operator cannot directly observe the internal glass condition. If breakage occurs within the annealing chamber, the operator may not be able to detect and handle it immediately, potentially leading to broken glass scratching other glass or even clogging the conveyor rollers and causing a production accident. A support component is located below the conveyor rollers to receive and collect glass falling from the conveyor rollers due to breakage. A noise sensor is installed in the annealing chamber to detect the noise of glass falling into the support component. A monitoring device is located outside the annealing chamber and electrically connected to the noise sensor to determine whether breakage has occurred based on the sensor's detection results. When the monitoring device detects a glass breakage, the alarm device electrically connected to the monitoring device promptly issues an alarm to remind the operator to handle the breakage and prevent glass scratches or even more serious production accidents. The monitoring device and noise sensor described in this application can monitor the glass breakage in the annealing chamber in real time, preventing production accidents caused by operators failing to detect and handle the breakage in a timely manner. The monitoring device can also allow operators to remotely monitor whether glass breakage occurs during the annealing process. Attached Figure Description

[0036] To more clearly illustrate the technical solutions in the embodiments of the present invention or 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 the present invention. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0037] Figure 1 A schematic diagram of the structure of a glass annealing shattering detection system provided in one embodiment of the present invention;

[0038] Figure 2 This is a schematic flowchart of the detection method in one embodiment of the present invention.

[0039] Explanation of icon numbers:

[0040] 100. Glass annealing plate explosion detection system; 1. Conveyor roller; 2. Support component; 3. Noise sensor; 4. Monitoring device; 5. Alarm device; 6. Vibration sensor; 7. Infrared temperature sensor;

[0041] The objectives, functional characteristics and advantages of the present application will be further described with reference to the embodiments in combination with the accompanying drawings. DETAILED DESCRIPTION

[0042] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all the other embodiments obtained by a person of ordinary skill in the art without creative effort belong to the protection scope of the present application.

[0043] It should be noted that if the embodiments of the present application involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative positional relationship, movement condition, etc. between components in a certain posture, and if the certain posture changes, the directional indications also change accordingly.

[0044] In addition, if the embodiments of the present application involve descriptions of “first”, “second”, etc., the descriptions of “first”, “second”, etc. are only for description purposes, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. Therefore, the features limited by “first” and “second” can explicitly or implicitly include at least one of the features. In addition, “and / or” or “and / or” appearing throughout the text means that the three parallel schemes are included, for example, “A and / or B” includes A scheme, or B scheme, or A and B are satisfied at the same time. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the fact that a person of ordinary skill in the art can realize it, and when the combination of technical solutions appears to be contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, and is not within the protection scope required by the present application.

[0045] As shown in Figure 1 The present application provides a glass annealing plate burst detection system 100 for checking whether the glass appears plate burst in the annealing process, the glass annealing plate burst detection system 100 comprises an annealing furnace, a noise sensor 3, a monitoring device 4 and an alarm device 5, the annealing furnace comprises a conveying roller 1, a furnace body and a supporting member 2, the furnace body is arranged on the conveying roller 1, the furnace body is provided with an annealing cavity, the supporting member 2 is arranged below the conveying roller 1 and is used for collecting the plate burst glass; the noise sensor 3 is arranged in the annealing cavity, and the noise sensor 3 is used for detecting the noise in the glass annealing process; the monitoring device 4 is electrically connected with the noise sensor 3, and the monitoring device 4 is used for monitoring the detection value of the noise sensor 3; and the alarm device 5 is electrically connected with the monitoring device 4.

[0046] In the embodiment, the conveying roller 1 is used to convey the glass to pass through different annealing areas in sequence to eliminate the internal stress of the glass. The kiln body cover is arranged on the conveying roller 1 to form an annealing cavity to avoid the glass directly contacting with the external air to cause the temperature to drop suddenly and break. However, due to the poor annealing quality or the temperature of the glass is not uniform during annealing, the glass may have the problem of plate explosion during the annealing process. It can be understood that, since the annealing cavity is approximately in a closed state during the annealing process, the operator cannot directly observe the internal glass, and if the plate explosion occurs in the annealing cavity, the operator may not be able to discover and handle the plate explosion in the first time, and then cause the broken glass to scratch other glass or even block the conveying roller 1 to cause a production accident. The supporting member 2 is located below the conveying roller 1 and is used to support and collect the glass falling from the conveying roller 1 due to the plate explosion. The noise sensor 3 is arranged in the annealing cavity and is used to detect the noise of the glass falling into the supporting member 2. The monitoring device 4 is arranged outside the annealing cavity and is electrically connected with the noise sensor 3, and whether the plate explosion occurs is judged by the detection result of the noise sensor 3. When the monitoring device 4 judges that the plate explosion occurs, the alarm device 5 electrically connected with the monitoring device 4 is controlled to issue an alarm in time to timely remind the operator to handle the plate explosion and avoid the glass being scratched or even a more serious production accident. The monitoring device 4 and the noise sensor 3 of the present application can monitor whether the plate explosion occurs in the annealing cavity in real time to avoid the operator failing to know and handle the plate explosion in time to cause a production accident of the production line. The monitoring device 4 can also be used by the operator to remotely monitor whether the plate explosion occurs in the glass during the annealing process.

[0047] Specifically, the monitoring device 4 is electrically connected with the noise sensor 3 to receive the detection noise information of the noise sensor 3. The monitoring device 4 can judge whether the glass falls into the supporting member 2 according to the instantaneous change of the detection noise information of the noise sensor 3, and then judge whether the plate explosion occurs, and correspondingly control the alarm device 5 to operate to warn the operator to handle the plate explosion in time. The noise information can be a noise decibel value. When the noise decibel value detected by the noise sensor 3 suddenly changes, the monitoring device 4 judges that the glass has the plate explosion.

[0048] The monitoring device 4 can determine whether the glass plate is broken by comparing the detected noise decibel value with the preset noise decibel value in addition to determining whether the glass plate is broken by whether the noise decibel value is suddenly changed. The operator can test the noise decibel value detected by the noise sensor 3 when the glass plate falls into the supporting member 2 from the conveying roller 1 in advance, and take a value slightly less than the noise decibel value as the preset decibel value. When the monitoring device 4 monitors that the detected decibel value of the noise sensor 3 is equal to or greater than the preset decibel value, it can be determined that the glass plate falls into the supporting member 2. It can be understood that the preset decibel value needs to be greater than the noise decibel value detected by the noise sensor 3 in the normal annealing process. In actual implementation, the monitoring device 4 can determine whether the glass plate is broken by one of whether the detected noise decibel value is suddenly changed and by comparing the detected noise decibel value with the preset noise decibel value, or by both to improve the accuracy of the glass plate breaking detection system 100.

[0049] It should be noted that the electrical connection in the present application includes wired connection and wireless connection such as Bluetooth and WIFI.

[0050] In actual implementation, the supporting member 2 is made of metal. When the glass plate falls into the supporting member 2, the noise is larger, and the noise sensor 3 is more likely to detect the noise of the glass plate falling into the supporting member 2, thereby determining that the glass plate is broken. The operator can handle the broken glass plate by stopping the machine for troubleshooting or without stopping the machine for troubleshooting.

[0051] Optionally, the noise sensor 3 can be arranged on the side of the conveying roller 1, or on the supporting member 2, or suspended between the conveying roller 1 and the supporting member 2 by a support, which is not limited here.

[0052] In an embodiment of the present application, the monitoring device 4 includes a signal processing module and a display module. The signal processing module is used to receive the detected noise of the noise sensor 3 and determine whether to control the alarm device 5 to operate according to the detected noise. The display module is electrically connected with the signal processing module and is used to display the detected value in real time.

[0053] In the embodiment, the signal processing module receives the detected noise signal transmitted from the noise sensor 3 in real time, and compares the detected decibel value with the preset decibel value in real time to determine whether the glass plate is broken in real time. The display module is used to display the decibel value of the detected noise of the noise sensor 3, so that the operator can observe the change of the decibel value of the detected noise in real time and intuitively observe whether the decibel value of the noise is suddenly changed, forming a double monitoring mechanism of "automatic alarm and manual review". The preset decibel value is input into the monitoring device 4 by the operator according to the actual situation.

[0054] Optionally, the signal processing module can also adopt a filtering algorithm to process the detected noise signal, so as to directly filter out the environmental noise interference and accurately capture and extract the noise characteristics of the glass falling into the supporting member 2. The signal processing module selects an adaptive filtering algorithm, which can automatically adjust the filter parameters according to the real-time changes of the noise signal, so as to ensure that the useful signal can be stably and accurately extracted under different production environments. The reason for such selection is that the annealing workshop environment is complex and there are many noise sources, and the traditional fixed-parameter filtering algorithm is difficult to adapt to the variable working conditions, while the adaptive filtering algorithm can be dynamically adjusted and has stronger environmental adaptability and robustness, and can better meet the high-precision requirements of the system on signal processing.

[0055] In actual implementation, the display device is not only used for displaying the detected decibel value of the noise sensor 3 and the change curve of the detected decibel value in real time, but also can be used as a human-computer interaction interface for an operator to set detection parameters.

[0056] In an embodiment of the present application, as shown in Figure 1 The noise sensor 3 includes at least two groups, and the two groups of noise sensors 3 are arranged on the two sides of the conveying roller 1. Each group of noise sensors 3 includes a plurality of noise sensors 3, and the plurality of noise sensors 3 are arranged at intervals along the conveying direction of the conveying roller 1.

[0057] In the present embodiment, the noise sensor 3 is used to monitor the sound of the glass falling into the supporting member 2 after the edge of the glass is blown off from the conveying roller 1. Since the glass will fall from both sides of the conveying roller 1 after the edge of the glass is blown off, the two groups of noise sensors 3 are arranged on the two sides of the conveying roller 1 to detect the noise of the glass falling into the supporting member 2 from both sides of the conveying roller 1 in real time, so as to facilitate the monitoring device to judge whether the edge is blown off.

[0058] It should be noted that a plurality of noise sensors 3 are arranged on each side of the conveying roller 1, and the plurality of noise sensors 3 are arranged at intervals. The detection results of the plurality of noise sensors 3 can be verified with each other, so as to improve the accuracy of the blown-off detection, avoid the failure of the entire detection system due to the failure or abnormality of a single noise sensor 3, and improve the stability of the system. Moreover, the monitoring device 4 can also roughly judge the position of the blown-off through the detection results of the plurality of noise sensors 3 and the arrangement positions of the noise sensors 3, and notify the operator through the display module, so as to facilitate the operator to timely handle the blown-off. The closer the blown-off is to the noise sensor 3, the greater the decibel value detected by the noise sensor 3.

[0059] In practical implementation, noise sensors 3 can be set according to the areas where plate explosions frequently occur, with a higher density of noise sensors 3 in these areas. It is understandable that an annealing furnace typically consists of a uniform heating zone (Zone A), a critical annealing zone (Zone B), a post-annealing zone (Zone C), a transition zone (Zone D), a hot air circulation cooling zone (Ret zone), a filtration zone (Zone E), and a forced cooling zone (Zone F). Noise sensors 3 can be set up more densely in the post-annealing zone and the transition zone.

[0060] Generally, the detection range of noise sensor 3 is within 6 meters. In one embodiment, the ambient noise level detected by noise sensor 3 in area C is between 63 dB and 65 dB. Within a 6-meter radius of the installation location of noise sensor 3, the decibel level of falling glass is greater than 80 dB; therefore, the preset decibel level set for monitoring device 4 can be 80 dB. In one embodiment, the ambient noise level detected by noise sensor 3 in area D is also between 63 dB and 65 dB. Within a 6-meter radius of the installation location of noise sensor 3, the decibel level of falling glass is greater than 75 dB; therefore, the preset decibel level set for monitoring device 4 can be 75 dB.

[0061] In one embodiment of the present invention, such as Figure 1 As shown, the glass annealing shattering detection system 100 also includes a vibration sensor 6, which is located on the support member 2. The vibration sensor 6 is used to detect the vibration of the support member 2 and is electrically connected to the monitoring device 4.

[0062] In this embodiment, a vibration sensor 6 is installed on the support member 2 to detect the vibration of the support member 2. After the glass shatters, the glass falling into the support member 2 will cause the support member 2 to vibrate. The vibration sensor 6 detects the vibration of the support member 2 to help the monitoring device 4 determine if the glass shatters. The vibration information of the support member 2 collected by the vibration sensor 6 is also transmitted to the monitoring device 4 via wired or wireless transmission. The signal processing module processes the vibration information and extracts characteristic information such as vibration frequency and amplitude. If the vibration characteristics change abruptly, the signal processing module determines that a glass shattering event has occurred and controls the alarm device 5 to operate. The display module can display the vibration characteristic values ​​detected by the vibration sensor 6 in real time, so that the operator can intuitively observe the changes in the vibration characteristic values.

[0063] Specifically, the monitoring device 4 is electrically connected to the vibration sensor 6 to receive the vibration characteristics detected by the vibration sensor 6. The vibration sensor 6 detects the vibration characteristics of the support 2 in real time. The monitoring device 4 can determine whether glass has fallen into the support 2 based on the instantaneous changes in the vibration characteristics detected by the vibration sensor 6, and thus determine whether a glass breakage has occurred, and accordingly control the alarm device 5 to operate. When the vibration characteristics detected by the vibration sensor 6 change abruptly, the monitoring device 4 can determine that the glass has broken.

[0064] In actual implementation, the operator can test the frequency and amplitude of the vibration detected by the vibration sensor 6 when the glass falls into the support 2 from the conveying roller 1 in advance, and set the frequency and amplitude slightly smaller than the tested frequency and amplitude as the preset frequency and preset amplitude. When the monitoring device 4 detects that the vibration frequency of the support 2 is equal to or greater than the preset frequency or the vibration amplitude of the support 2 is equal to or greater than the preset amplitude, it can be determined that the glass falls into the support 2, and further, it can be determined that the glass appears to be blown off the plate. It can be understood that the preset frequency and preset amplitude need to be greater than the vibration frequency and vibration amplitude detected by the vibration sensor 6 in the normal annealing process. Similarly, the monitoring device 4 can determine whether the glass appears to be blown off the plate by detecting whether the vibration frequency and amplitude change suddenly, or by comparing the detected vibration frequency and amplitude with the preset frequency and amplitude, or by both, so as to improve the accuracy of the glass annealing blown-off-plate detection system 100.

[0065] Optionally, a plurality of vibration sensors 6 are arranged on the support 2 along the conveying direction of the conveying roller 1. When the glass appears to be blown off the plate and falls into the support 2, the monitoring device 4 can roughly determine the position of the blown-off plate by the arrangement positions of the plurality of vibration sensors 6 and the difference between the vibration characteristics detected by the plurality of vibration sensors 6, and notify the operator through the display module so as to facilitate the operator to handle the blown-off plate in time.

[0066] In an embodiment of the present application, as shown in Figure 1 The glass annealing blown-off-plate detection system 100 further comprises an infrared temperature sensor 7 arranged in the kiln body and corresponding to the middle part of the conveying roller 1. The infrared temperature sensor 7 is used to detect the temperature of the glass, and the infrared temperature sensor 7 is electrically connected to the monitoring device 4.

[0067] In the present embodiment, the infrared temperature sensor 7 is used to detect the temperature of the glass located in the middle part of the conveying roller 1 in real time. The monitoring device 4 is electrically connected to the infrared temperature sensor 7, and the monitoring device 4 receives the detected temperature from the infrared temperature sensor 7 in real time and compares the detected temperature with a preset detected temperature to determine whether the glass located in the middle part of the conveying roller 1 appears to be blown off the plate in real time.

[0068] It can be understood that the position detected by the infrared temperature sensor 7 is fixed and continuously detects the temperature of the glass in the middle part of the conveying roller 1 along the conveying direction of the conveying pipeline. When the glass located in the middle part of the conveying roller 1 appears to be blown off the plate, the infrared temperature sensor 7 detects that the temperature at the position where the blown-off plate appears is different from the temperature of the normal glass along the conveying direction of the conveying roller 1, the monitoring device 4 determines that the blown-off plate appears in the middle part of the conveying roller 1, and controls the alarm device 5 to issue an alarm.

[0069] In actual implementation, the temperature signal detected by the infrared temperature sensor 7 is sent to the monitoring device 4 through a cable or wireless transmission or the like. If the monitoring device 4 determines that the temperature detected by the infrared temperature sensor 7 does not match the preset temperature, the monitoring device 4 determines that a plate explosion event occurs, and controls the alarm device 5 to operate an alarm. It can be understood that the preset temperature can be a point value or a range value. The preset temperature is a normal temperature range of the middle part of the glass conveyed on the conveying roller 1 in a normal annealing process. If the detected temperature is not within the temperature range, the monitoring device 4 determines that a plate explosion occurs. The infrared temperature sensor 7 can be arranged above the conveying roller 1 through a support.

[0070] Optionally, the infrared temperature sensor 7 also includes a plurality of infrared temperature sensors 7, which are arranged at intervals along the conveying direction of the conveying roller 1, or arranged at intervals perpendicular to the conveying direction of the conveying roller 1, so as to increase the detection range of the glass and improve the accuracy of the plate explosion monitoring.

[0071] In an embodiment of the present application, as shown in Figure 1 The alarm device 5 includes a buzzer and an alarm lamp. The buzzer is used to issue a sound alarm, and the alarm lamp is used to issue a light alarm.

[0072] In this embodiment, when the monitoring device 4 detects a plate explosion, the operator can be warned by the buzzer issuing a sound and the alarm lamp flashing a light.

[0073] In actual implementation, the operator can set the warning sound issued by the buzzer according to the position of the plate explosion. For example, when the monitoring device 4 monitors a plate explosion occurring at the edge of the glass, the buzzer issues a continuous warning sound. When the monitoring device 4 monitors a plate explosion occurring in the middle of the glass, the buzzer issues an intermittent warning sound. Similarly, the operator can also set the light emitted by the alarm lamp according to the position of the plate explosion. For example, when the monitoring device 4 monitors a plate explosion occurring at the edge of the glass, the alarm lamp issues a continuous red light. When the monitoring device 4 monitors a plate explosion occurring in the middle of the glass, the alarm lamp issues an intermittent red light.

[0074] The present application also provides a detection method, as shown in Figure 1 and Figure 2 The detection method uses the above-mentioned glass annealing plate explosion detection system 100. The specific structure of the glass annealing plate explosion detection system 100 is referred to the above-mentioned embodiments. Since the detection method adopts all the technical solutions of the above-mentioned embodiments, it at least has all the beneficial effects brought by the technical solutions of the above-mentioned embodiments, which will not be repeated here. The detection method includes the following steps:

[0075] S100: input a preset noise decibel value to a signal processing module;

[0076] S200: Collecting the noise of the glass falling into the supporting member 2 during the annealing of the glass by the noise sensor 3;

[0077] S300: Real-time extracting the detected noise decibel value collected by the noise sensor 3 by the signal processing module;

[0078] S400: Real-time comparing the preset noise decibel value and the detected noise decibel value by the signal processing module;

[0079] S500: If the detected noise decibel value is greater than or equal to the preset noise decibel value, judging whether the mutation of the detected noise meets the preset mutation characteristics by the signal processing module;

[0080] S600: If yes, controlling the alarm module to operate by the signal processing module.

[0081] In the embodiment, whether the glass plate explosion occurs is determined by two judgments. The signal processing module first compares the preset noise decibel value and the detected noise decibel value in real time. If the detected noise decibel value is greater than or equal to the preset noise decibel value, it is further judged whether the mutation of the detected noise meets the preset mutation characteristics. If yes, the signal processing module judges that the glass plate explosion occurs, and controls the alarm module to operate to issue an alarm to remind the operator to handle in time.

[0082] In actual implementation, when the signal processing module judges that the detected noise decibel value is greater than or equal to the preset noise decibel value, the signal processing module can also control the alarm module to issue an alarm. The alarm issued at this time is defined as the first alarm. When the signal processing module judges that the glass plate explosion occurs, the alarm issued by the alarm module can be the second alarm. When the first alarm occurs, the operator can check whether the glass plate explosion occurs and whether other faults on the production line cause the noise to occur. When the second alarm occurs, the operator can more certainly judge that the glass plate explosion occurs and handle in time. When the signal processing module performs the first judgment, the time that may be the glass plate explosion can be quickly screened, and the glass annealing glass plate explosion detection system 100 can respond in time. When the signal processing module performs the second judgment, the mutation characteristics of the noise are further analyzed on the basis of the first screening, and the accuracy of the judgment of the glass plate explosion is improved.

[0083] It can be understood that the preset noise decibel value can be set according to the noise decibel value issued when the glass falls from the conveying roller 1 to the height of the supporting member 2 in actual production. The operator can test the noise decibel value issued when the glass falls from the conveying roller 1 to the height of the supporting member 2 for multiple times, and take the minimum decibel value among them as the highest reference. At the same time, when the glass plate explosion does not occur during the annealing process, the maximum environmental decibel value detected by the noise sensor 3 is the lowest reference, and the preset noise decibel value can be selected between the lowest reference and the highest reference. The preset characteristics can be the mutation speed and mutation amplitude of the noise generated when the glass falls from the conveying roller 1 to the height in the production environment, which is not limited here.

[0084] In an embodiment of the present application, the preset mutation feature includes a preset time and a preset change value, and the step of determining whether the mutation of the detected noise meets the preset feature by the signal processing module includes:

[0085] inputting the preset time and the preset change value to the signal processing module;

[0086] determining, by the signal processing module, whether the change value of the noise decibel value within the preset time exceeds the preset change value;

[0087] if the change value of the noise decibel value within the preset time exceeds the preset change value, the signal processing module determines that the glass sheet is falling off the support 2.

[0088] In this embodiment, the operator can input the preset time and the preset change value to the signal processing module, and the preset time and the preset change value can be measured in advance according to the noise emitted by the glass falling off the support 2 in the production environment. It can be understood that, since the glass falling off the support 2 usually emits high-decibel noise within a short period of time, whether the change of the detected noise within the preset time meets the preset change value can be used to determine whether the mutation of the detected noise meets the preset feature.

[0089] In actual implementation, the signal processing module can fit a change curve of the detected noise decibel value and time, and the preset change value and the preset time measured in advance by the operator can also fit a change curve. When determining whether the mutation of the detected noise meets the preset feature, the signal processing module can compare the similarity of the actual detected change curve and the preset change curve to determine whether the mutation meets the preset feature. The similarity can be determined by indicators such as correlation coefficient and mean square error. For example, when the correlation coefficient is greater than 0.8, the signal processing module can determine that the mutation meets the preset feature, and then determine that the glass sheet is falling off the support 2.

[0090] In actual implementation, the signal processing module can also fit the detected noise decibel value and time into a change curve in real time, and display the change curve in real time through the display module, so as to enable the operator to intuitively monitor the change of the detected noise decibel value and manually determine whether the glass sheet is falling off the support 2.

[0091] In an embodiment of the present application, the detection method further includes the following steps:

[0092] collecting the vibration feature of the support 2 by the vibration sensor 6;

[0093] extracting the vibration feature collected by the vibration sensor 6 in real time by the signal processing module;

[0094] determining, by the signal processing module, whether the vibration feature of the support 2 is mutated;

[0095] If the mutation occurs, the signal processing module determines that the glass has fallen into the support 2 due to the explosion of the plate, and controls the alarm module to operate.

[0096] In the embodiment, the vibration characteristics of the support 2 are also detected to determine whether the explosion of the plate occurs, so as to further improve the accuracy of the determination of the explosion of the plate. The vibration characteristics of the support 2 can be the vibration frequency and the vibration amplitude. It can be understood that when the glass falls into the support 2 due to the explosion of the plate, the vibration frequency and the vibration amplitude of the support 2 will change greatly, and the signal processing module detects the mutation to determine that the explosion of the plate occurs.

[0097] It can be understood that when the glass falls into the support 2, not only noise is generated, but also the vibration frequency and the vibration amplitude of the support 2 are changed. Therefore, the signal processing module can combine the determination of whether the noise decibel value is greater than or equal to the preset noise decibel value and whether the vibration frequency and the vibration amplitude of the support 2 are mutated to determine whether the explosion of the plate occurs. If the signal processing module simultaneously determines that the noise decibel value is greater than or equal to the preset noise decibel value and the vibration frequency and the vibration amplitude of the support 2 are mutated, the signal processing module controls the alarm device 5 to issue an alarm to prompt the operator to handle in time. The signal processing module can determine whether the vibration frequency and the vibration amplitude of the support 2 are mutated by comparing whether the measured vibration frequency and the vibration amplitude of the support 2 are greater than or equal to the preset vibration frequency and the preset vibration amplitude. Alternatively, when one of the vibration frequency and the vibration amplitude of the support 2 is mutated, the signal processing module combines the determination result of whether the noise decibel value is greater than or equal to the preset noise decibel value to determine whether the explosion of the plate occurs.

[0098] In actual implementation, the operator can test the vibration frequency and the vibration amplitude of the support 2 caused by the glass falling from the conveying roller 1 to the support 2 multiple times, and the minimum vibration frequency and the minimum vibration amplitude are the highest reference. At the same time, when the explosion of the plate does not occur during the annealing process, the maximum vibration frequency and the maximum vibration amplitude detected by the vibration sensor 6 are the lowest reference, and the preset vibration frequency and the preset vibration amplitude can be selected between the lowest reference and the highest reference.

[0099] In an embodiment of the present application, the detection method further comprises the following steps:

[0100] The temperature characteristics of the glass are collected by the infrared temperature sensor 7;

[0101] The temperature characteristics collected by the infrared temperature sensor 7 are extracted in real time by the signal processing module;

[0102] The signal processing module determines whether the temperature characteristics are mutated;

[0103] If the mutation occurs, the signal processing module determines that the glass has fallen into the support 2 due to the explosion of the plate, and controls the alarm module to operate.

[0104] In the embodiment, whether the glass sheet is blown off the roller table 1 is also determined by detecting whether the temperature of the glass sheet on the roller table 1 is suddenly changed. When the glass sheet is blown off the roller table 1, the middle part of the glass sheet can not fall into the supporting member 2, and at this time, the signal processing module determines whether the glass sheet is blown off the roller table 1 by determining whether the temperature characteristic is suddenly changed.

[0105] It can be understood that when the glass sheet is in a certain annealing process, the temperature of the glass sheet on the roller table 1 is approximately equal when passing through the same position, and the infrared temperature sensor 7 detects the temperature of the glass sheet passing through the position in real time. When the temperature is detected to be suddenly changed, the signal processing module determines that the glass sheet is blown off the roller table 1, and controls the alarm module to operate the alarm to prompt the user to handle in time.

[0106] In actual real time, a preset temperature range can be input to the signal processing module in advance. When the glass sheet is in a normal state, the detected temperature of the infrared temperature sensor 7 is within the preset temperature range. When the detected temperature of the infrared temperature sensor 7 is less than or greater than the preset temperature range, the signal processing module determines that the temperature is suddenly changed, and further determines that the glass sheet is blown off the roller table 1.

[0107] Optionally, when the edge part of the glass sheet is detected, the infrared temperature sensor 7 can be arranged to detect the temperature of the edge part of the glass sheet, and the determination result of whether the temperature is suddenly changed and the determination result of whether the noise decibel value is greater than or equal to the preset noise decibel value are combined to determine whether the glass sheet is blown off the roller table 1. In this way, the accuracy of the detection of the blown-off glass sheet can be further improved.

[0108] The above only describes the exemplary embodiments of the present application, and does not limit the patent scope of the present application. Any equivalent structural transformation, direct / indirect application in other related technical fields based on the technical concept of the present application and the content of the specification and drawings are included in the patent protection scope of the present application.

Claims

1. A glass annealing shattering detection system, used to check whether glass shatters during the annealing process, characterized in that, The glass annealing shatter detection system includes: An annealing furnace, comprising a conveyor roller conveyor, a furnace body, and a support member, wherein the furnace body is covered by the conveyor roller conveyor and has an annealing chamber, and the support member is located below the conveyor roller conveyor for collecting broken glass. A noise sensor is disposed in the annealing chamber and is used to detect noise during the glass annealing process; A monitoring device, electrically connected to the noise sensor, is used to receive the noise detected by the noise sensor; and An alarm device is electrically connected to the monitoring device.

2. The glass annealing shattering detection system as described in claim 1, characterized in that, The monitoring device includes a signal processing module and a display module. The signal processing module is used to receive the noise detected by the noise sensor and determine whether to control the alarm device to operate based on the detected noise. The display module is electrically connected to the signal processing module and is used to display the detected values ​​in real time.

3. The glass annealing shattering detection system as described in claim 1, characterized in that, The noise sensor includes at least two sets, which are located on both sides of the conveyor roller. Each set of noise sensors includes multiple noise sensors, which are spaced apart along the conveying direction of the conveyor roller.

4. The glass annealing shattering detection system as described in claim 1, characterized in that, The glass annealing shattering detection system also includes a vibration sensor, which is installed on the support member and is used to detect the vibration of the support member. The vibration sensor is electrically connected to the monitoring device.

5. The glass annealing shattering detection system as described in claim 1, characterized in that, The glass annealing shattering detection system also includes an infrared temperature sensor, which is located in the kiln body and positioned in the middle of the conveyor rollers. The infrared temperature sensor is used to detect the temperature of the glass and is electrically connected to the monitoring device.

6. The glass annealing shattering detection system as described in any one of claims 1 to 5, characterized in that, The alarm device includes a buzzer and an alarm light, the buzzer being used to emit an audible alarm and the alarm light being used to emit a visual alarm.

7. A detection method using the glass annealing shattering detection system as described in any one of claims 1 to 6, characterized in that, Includes the following steps: Input a preset noise decibel value into the signal processing module; The noise from the glass falling into the support during glass annealing is collected using a noise sensor. The signal processing module extracts the detected noise decibel value collected by the noise sensor in real time. The signal processing module compares the preset noise decibel value and the detected noise decibel value in real time. If the detected noise decibel value is greater than or equal to the preset noise decibel value, the signal processing module determines whether the abrupt change in the detected noise conforms to the preset abrupt change characteristics; If the conditions are met, the signal processing module controls the alarm module to operate.

8. The detection method as described in claim 7, characterized in that, The preset mutation features include preset time and preset change value. The step of the signal processing module in determining whether the mutation of the detected noise meets the preset features includes: Input the preset time and the preset change value into the signal processing module; The signal processing module determines whether the change in the noise decibel value exceeds the preset change value within the preset time period. If the change in the noise decibel value exceeds the preset change value within the preset time period, the signal processing module determines that a board explosion has occurred.

9. The detection method as described in claim 7, characterized in that, The detection method further includes the following steps: Vibration characteristics of the support component are collected using vibration sensors; The vibration characteristics collected by the vibration sensor are extracted in real time through the signal processing module; The signal processing module determines whether the vibration characteristics of the support component change abruptly; If a sudden change occurs, the signal processing module determines that a board explosion has occurred and controls the alarm module to operate.

10. The detection method as described in claim 7, characterized in that, The detection method further includes the following steps: The temperature characteristics of the glass are collected using an infrared temperature sensor; The signal processing module extracts the temperature characteristics collected by the infrared temperature sensor in real time. The signal processing module determines whether the temperature characteristic changes abruptly; If a sudden change occurs, the signal processing module determines that a board explosion has occurred and controls the alarm module to operate.

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