Interval paper detection device for glass substrate and use method
By designing a testing device for spacer paper used in glass substrates, the displacement and pressure changes of the spacer paper can be detected in real time, and the stiffness value can be calculated. This solves the shortcomings of laboratory small-sample testing and ensures the performance and efficiency of the spacer paper in the glass substrate packaging process.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- BENGBU CHINA OPTOELECTRONIC TECH CO LTD
- Filing Date
- 2026-02-10
- Publication Date
- 2026-05-12
AI Technical Summary
Existing technologies make it difficult to guarantee the compatibility and applicability of spacers in actual use through laboratory small-sample testing, and cannot effectively guarantee the paper performance during the glass substrate packaging process.
A glass substrate spacer paper detection device was designed. It uses a pressure adsorption mechanism and a pressure mechanism, combined with displacement and pressure sensors, to detect the displacement and pressure changes of the spacer paper in real time. The data processing unit calculates the stiffness value of the spacer paper to achieve online detection.
This achieves compatibility and applicability of the spacer paper in practical use, improves the packaging efficiency of glass substrates, saves time and costs, and allows for timely monitoring of paper performance, thus avoiding the use of substandard paper.
Smart Images
Figure CN122016471A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of spacer paper inspection technology, and more specifically, to a spacer paper inspection device and method for glass substrates. Background Technology
[0002] With the booming development of the panel industry both domestically and internationally, the quality management and requirements for glass substrates, as a crucial component of panels, have become particularly important. Whether it's a thin-film transistor display (TFT) glass substrate or an organic light-emitting diode (OLED) glass substrate, its surface quality is one of the key indicators affecting the quality of LCD panels. During the glass substrate packaging process, appropriate stiffness (referring to the bending strength of the paper, used to ensure that the spacer paper maintains a good shape on the glass substrate packaging rack and that the glass substrates are stacked evenly) ensures that the spacer paper maintains its good shape and support, avoiding uneven pressure on the glass substrate due to paper deformation, thereby reducing the risk of deformation or scratches on the glass substrate surface.
[0003] In actual use of spacer paper, the current testing method is to take samples from the entire roll of paper and conduct small-scale tests in the laboratory. However, this method can only be responsible for the authenticity and accuracy of the test data of the sample, and it is difficult to guarantee the matching degree and applicability of the paper in actual use. Summary of the Invention
[0004] The present invention aims to solve the problem that in the prior art, it is difficult to ensure the uniformity and representativeness of the samples when conducting small-sample tests in the laboratory, and it is also difficult to ensure the matching degree and applicability of the paper in actual use.
[0005] To solve the above problems, the present invention provides a glass substrate spacer paper detection device, including a support frame and a data processing unit. The support frame is equipped with a pressing mechanism, a pressing adsorption mechanism for adsorbing spacer paper and applying pressure to it. The pressing mechanism is equipped with a displacement sensor to detect the displacement changes of the spacer paper in real time. Both the bottom of the pressure adsorption mechanism and the pressure mechanism are equipped with pressure sensors located on the same working surface, which are used to detect the pressure applied to the spacer paper by the pressure action in real time. The data processing unit is electrically connected to the displacement sensor and the pressure sensor respectively, and is used to receive the detection signals and calculate the stiffness value of the spacer paper according to the preset algorithm.
[0006] The present invention provides a spacer paper detection device for glass substrates, which, compared with the prior art, has the following beneficial effects, but is not limited to: This glass substrate spacer paper detection device uses a pressure-adsorption mechanism and a pressure-pressing mechanism to lower a pressure sensor at its bottom, applying pressure to the spacer paper and causing displacement. The pressure sensor continuously monitors the pressure applied to the spacer paper and transmits the detected pressure signal to a data processing unit. Similarly, a displacement sensor continuously monitors the displacement of the spacer paper during pressure application and transmits the detected displacement signal to the data processing unit. When the displacement or pressure reaches a set maximum value, the data processing unit stops the pressure-adsorption mechanism and the pressure-pressing mechanism. The data processing unit calculates the stiffness value of the spacer paper according to a preset algorithm, thus achieving online detection of the spacer paper stiffness. This ensures the matching degree and applicability of the spacer paper in actual use, further facilitating the online packaging production of qualified spacer paper for glass substrates, guaranteeing packaging efficiency and the integrity rate of glass substrates. It not only saves time and sampling costs but also allows for timely monitoring of paper performance, preventing the use of unqualified paper during the glass substrate packaging process, which is beneficial for cost control.
[0007] Furthermore, the pressing mechanism is a second driving mechanism; the pressing adsorption mechanism includes a first driving mechanism, a push rod, and a pressure plate. The data processing unit is controlled and connected to the first driving mechanism and the second driving mechanism. The driving end of the first driving mechanism is connected to one end of the push rod, which is used to drive the push rod to perform reciprocating motion in the vertical direction on the support frame. The other end of the push rod is connected to the top of the pressure plate.
[0008] Furthermore, a guide structure is provided between the pressure plate and the support frame. The guide structure includes a guide slide rod, on which a guide sleeve is fitted. The guide sleeve is fitted onto the support frame, and the bottom end of the guide slide rod is connected to the top of the pressure plate.
[0009] Furthermore, the pressure plate has an internal cavity, and small holes communicating with the cavity are evenly distributed at the bottom of the pressure plate. A sponge layer is provided at the bottom of the pressure plate, and an air pipe communicating with the cavity is provided at the top of the pressure plate. The cavity, small holes, sponge layer, and air pipe together form a vacuum adsorption structure on the pressure plate.
[0010] Furthermore, the data processing unit is a microcontroller or computer system, and its preset algorithm is: spacer paper stiffness detection value = 0.268 ΔF ΔS, where ΔF is the pressure change value and ΔS is the displacement change value; it can compare the calculated stiffness value with the preset standard stiffness range, link the back-end packaging system or waste paper treatment system, and automatically match the parameters of each spacer paper with the ID number of the glass substrate or dispose of unqualified spacer paper.
[0011] Furthermore, the support frame is made of a material with sufficient strength and stability.
[0012] The present invention also provides a method for using a spacer paper for glass substrate inspection, based on the aforementioned spacer paper for glass substrate inspection apparatus, comprising: S1. Preparations; S101. Turn on the power and start the data processing unit; check whether the displacement sensor and pressure sensor are working properly. S2, Apply pressure; S201. The pressure sensor at the bottom of the device is slowly moved down by the pressure adsorption mechanism and the pressure mechanism, gradually approaching and contacting the spacer paper. When it just makes contact, the pressure sensor captures the initial pressure value and records it as 0N. S202. Continue to move downwards, apply a certain pressure to the spacer paper, and the spacer paper will undergo displacement changes. The pressure sensor and displacement sensor will collect pressure data and displacement data in real time and transmit them to the data processing unit. S3. Data Acquisition and Analysis: When the displacement reaches the set maximum value or the pressure reaches the set maximum value, the downward adsorption mechanism and the downward mechanism stop working, and the data processing unit calculates the stiffness value of the spacer paper according to the preset algorithm. S4. Result Display and Judgment; S401. Display the stiffness value on the monitor for the operator to view, and compare the stiffness value with the preset standard stiffness range to determine whether the stiffness of the spacer paper meets the requirements.
[0013] Furthermore, in step S2, all pressure sensors are zeroed before applying pressure.
[0014] Furthermore, the procedure following step S101 also includes: S102. Stablely install the spacer paper roll to be tested in a fixed position on the production line, and at the same time start the spacer paper cutting on the production line. Cut the spacer paper flat according to the size requirements of the spacer paper for glass substrates. S103. Start the production line conveyor and place the cut spacer paper flat in the designated position on the support frame.
[0015] Furthermore, the procedure following step S401 also includes: S402. If the stiffness value is within the standard range, the stiffness of the spacer paper is deemed qualified. The device then uses the vacuum adsorption structure on the pressure plate to adsorb the qualified spacer paper. The drive mechanism two is reset, and then the drive mechanism one moves the adsorbed and fixed spacer paper upward. The data processing unit, in conjunction with the back-end packaging system, moves the glass substrate below the spacer paper, lays the spacer paper directly on the glass substrate, and marks the test data with the glass substrate ID. S403. If the stiffness value is not within the standard range, the stiffness of the spacer paper is deemed unqualified. The device then uses the vacuum adsorption structure on the pressure plate to adsorb the unqualified spacer paper. The drive mechanism two is reset, and then the drive mechanism one moves the adsorbed and fixed spacer paper upward. The data processing unit links with the back-end waste paper processing system to remove and discard the unqualified spacer paper, and then automatically detects the next spacer paper according to the above steps. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the structure of the spacer paper detection device for glass substrates according to an embodiment of the present invention. Figure 1 ; Figure 2 This is a schematic diagram of the structure of the spacer paper detection device for glass substrates according to an embodiment of the present invention. Figure 2 ; Figure 3 This is a schematic diagram of the vacuum adsorption structure on the pressure plate according to an embodiment of the present invention; Figure 4 This is a block diagram illustrating the control principle of an embodiment of the present invention; Figure 5 The effectiveness of the spacer paper in this invention was observed during a production line trial. Figure 1 ; Figure 6 The effectiveness of the spacer paper in this invention was observed during a production line trial. Figure 2 .
[0017] Explanation of reference numerals in the attached figures: 1. Support frame; 2. Data processing unit; 3. Downward adsorption mechanism; 301. Drive mechanism one; 302. Push rod; 303. Pressure plate; 3031. Cavity; 3032. Small hole; 3033. Sponge layer; 3034. Air tube; 4. Downward mechanism; 5. Displacement sensor; 6. Pressure sensor; 7. Guide structure; 701. Guide slide rod; 702. Guide sleeve. Detailed Implementation
[0018] To make the objectives, technical solutions, and advantages of this application clearer, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings showing multiple embodiments according to this application. It should be understood that the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments described in this application without creative effort will fall within the scope of protection of this application.
[0019] Unless otherwise defined, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains. The terminology used in the description of this application is for the purpose of describing specific embodiments only and is not intended to limit the use of open-ended terms such as "comprising," "including," "having," "containing," etc., in the description, claims, and accompanying drawings. Therefore, "comprising," "including," or "having" refers to, for example, a method or apparatus having one or more steps or elements, but not limited to having only these one or more elements. The terms "first," "second," etc., in the description, claims, or accompanying drawings are used to distinguish different objects, not to describe a specific order or hierarchy. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.
[0020] In the description of this invention, it should be understood that the terms "upper", "lower", "left", "right", "front", "rear", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and 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. Therefore, they should not be construed as limitations on this invention.
[0021] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "attachment" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can be a direct connection or an indirect connection through an intermediate medium; or they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.
[0022] It should be emphasized that when the term "comprising / including" is used in this specification, it is used to explicitly indicate the presence of the stated feature, integer, step, or component, but does not exclude the presence or addition of one or more other features, integers, steps, parts, or groups of features, integers, steps, or parts.
[0023] In this application, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. Additionally, in this application, the character " / " generally indicates that the preceding and following related objects have an "or" relationship.
[0024] See Figure 1 and Figure 4 The present invention provides a glass substrate spacer paper detection device, including a support frame 1 and a data processing unit 2. The support frame 1 is equipped with a pressing mechanism 4 and a pressing adsorption mechanism 3 for adsorbing spacer paper and applying pressure to it. A displacement sensor 5 is installed on the pressing mechanism 4 to detect the displacement change of the spacer paper in real time; Both the bottom of the pressure adsorption mechanism 3 and the pressure mechanism 4 are equipped with pressure sensors 6 located on the same working surface, which are used to detect the pressure applied to the spacer paper by the pressure action in real time. The data processing unit 2 is electrically connected to the displacement sensor 5 and the pressure sensor 6 respectively, and is used to receive the detection signals and calculate the stiffness value of the spacer paper according to the preset algorithm.
[0025] In this embodiment, the glass substrate spacer paper detection device uses a pressure-adsorption mechanism 3 and a pressure mechanism 4 to move the pressure sensor 6 at its bottom from the same working surface, applying pressure to the spacer paper and causing displacement. The pressure sensor 6 then detects the pressure applied to the spacer paper by the pressure plate 3 in real time and transmits the detected pressure signal to the data processing unit 2. Similarly, the displacement sensor 5 detects the displacement change of the spacer paper in real time during the pressure application process and transmits the detected displacement signal to the data processing unit 2. When the displacement or pressure reaches a set maximum value, the data processing unit 2 controls the pressure-adsorption mechanism 3 and the pressure mechanism 4 to stop working. The data processing unit 2 calculates the stiffness value of the spacer paper according to a preset algorithm, thereby achieving online detection of the spacer paper stiffness. This ensures the matching degree and applicability of the spacer paper in actual use, further facilitating the online packaging production of qualified spacer paper for glass substrates, ensuring packaging efficiency and integrity of the glass substrates. This not only saves time and sampling costs but also allows for timely monitoring of paper performance, preventing the use of unqualified stiffness paper in the glass substrate packaging process, and is beneficial for cost control.
[0026] See Figure 2Optionally, the pressing mechanism 4 is a second driving mechanism; the pressing adsorption mechanism 3 includes a first driving mechanism 301, a push rod 302 and a pressure plate 303. The data processing unit 2 is controlled and connected to the first driving mechanism 301 and the second driving mechanism. The driving end of the first driving mechanism 301 is connected to one end of the push rod 302 to drive the push rod 302 to perform reciprocating motion in the vertical direction on the support frame 1. The other end of the push rod 302 is connected to the top of the pressure plate 303.
[0027] In this embodiment, the data processing unit 2 outputs instructions to the drive mechanism 301 and the drive mechanism 2 to make them work. The drive mechanism 301 drives the push rod 302 to perform linear reciprocating motion, thereby driving the pressure plate 303 to apply pressure to the spacer paper. The drive mechanism 2 works to drive the pressure sensor 6 to apply pressure to the spacer paper.
[0028] Among them, the drive mechanism 301 and the drive mechanism 2 can be cylinders, hydraulic cylinders or electric telescopic push rods, etc., with electric telescopic push rods being preferred, which can effectively ensure that the push rod 302 performs linear reciprocating motion and reduce the movement space.
[0029] Specifically, the pressure sensor 6 installed at the bottom of the pressure plate 303 is installed at the bottom of the pressure plate 303, and multiple sensors are evenly arranged, for example, such as... Figure 1 As shown, three pressure sensors are installed, located on the bottom left, middle, and right sides of the pressure plate 303, respectively. By collecting pressure at multiple points, the local deviation of single-point detection is eliminated, and the accuracy of stiffness calculation is improved. In addition, each end of the support frame 1 is equipped with a pressing mechanism 4. The pressing mechanism 4 at both ends drives the pressure sensor 6 connected to its bottom to act on the two ends of the spacer paper, working in conjunction with the pressure sensor 6 at the bottom of the pressure plate 303 to achieve multi-point pressure collection, eliminate the local deviation of single-point detection, and improve the accuracy of stiffness calculation.
[0030] See Figure 2 Optionally, a guide structure 7 is provided between the pressure plate 303 and the support frame 1. The guide structure 7 includes a guide slide rod 701, and a guide sleeve 702 is sleeved on the guide slide rod 701. The guide sleeve 702 is fitted onto the support frame 1, and the bottom end of the guide slide rod 701 is connected to the top of the pressure plate 303.
[0031] In this embodiment, when the drive mechanism 301 drives the push rod 302 and the pressure plate 303 to perform linear reciprocating motion, it simultaneously drives the guide slide rod 701 to slide in the guide sleeve 702 to guide the linear reciprocating motion and improve the stability of the pressure plate 303 when it moves up and down.
[0032] See Figure 3Optionally, the pressure plate 303 has a cavity 3031 inside, and small holes 3032 that communicate with the cavity 3031 are evenly opened at the bottom of the pressure plate 303. A sponge layer 3033 is provided at the bottom of the pressure plate 303, and an air pipe 3034 that communicates with the cavity 3031 is provided at the top of the pressure plate 303. The cavity 3031, small holes 3032, sponge layer 3033 and air pipe 3034 form a vacuum adsorption structure on the pressure plate 303.
[0033] In this embodiment, the air pipe 3034 is connected to the vacuum pump device through a pipeline, and the data processing unit 2 is connected to the vacuum pump for control, which facilitates the control of the vacuum pump operation. When the pressure plate 303 just contacts the spacer paper, or when it is pressed on the spacer paper for testing and then removed, the data processing unit 2 controls the vacuum pump to perform vacuuming. The air between the pressure plate 303 and the spacer paper is sequentially drawn away through the sponge layer 303, the small hole 3032 and the cavity 3031, forming a negative pressure between the pressure plate 303 and the spacer paper. The sponge layer 303 provides flexible protection for the spacer paper, which facilitates vacuum adsorption and fixation of the spacer paper. When the data processing unit 2 controls the vacuum pump to stop vacuuming, the sponge layer 303 recovers through its own elasticity, and the pressure plate 303 and the spacer paper return to normal atmospheric pressure, which facilitates the spacer paper to detach from the pressure plate 303. This makes it convenient for the tested spacer paper to be used for packaging on the glass substrate production line or for waste disposal.
[0034] See Figure 1 Optionally, the data processing unit 2 is a microcontroller or computer system, and its preset algorithm is: spacer paper stiffness detection value = 0.268 ΔF ΔS, where ΔF is the pressure change value and ΔS is the displacement change value; it can compare the calculated stiffness value with the preset standard stiffness range, link the back-end packaging system or waste paper treatment system, and automatically match the parameters of each spacer paper with the ID number of the glass substrate or dispose of unqualified spacer paper.
[0035] In this embodiment, the data processing unit 2 receives signals from the pressure sensor 6 and the displacement sensor 5, and can quickly process the pressure and displacement. It also performs fitting calculations using a pre-set program formula and automatically matches the parameters of each spacer paper with the ID number of the glass substrate by linking with the back-end packaging system. Alternatively, it can remove unqualified spacer paper by linking with the waste paper processing system. In this way, it can not only complete the packaging of semi-finished glass substrates, but also ensure that the stiffness test data of the spacer paper used for packaging each glass substrate meets the usage requirements and makes the data traceable.
[0036] See Figure 1 Optionally, the support frame 1 is made of a material with sufficient strength and stability.
[0037] In this embodiment, the support frame 1 is sufficient to fix and support the entire testing device, ensuring the stability of each component during the testing process; the support frame 1 can be made of metal, preferably stainless steel 304, which has sufficient strength and stability.
[0038] Example 2, another embodiment of the present invention: a method for detecting spacer paper for glass substrates, based on the aforementioned spacer paper detection device for glass substrates, comprising: S1. Preparations; S101. Turn on the power and start the data processing unit 2 to put it into working condition; check whether the displacement sensor 5 and pressure sensor 6 are working properly to ensure the accuracy of data acquisition. S2, Apply pressure; S201. The pressure sensor 6 at the bottom of the press is slowly moved down by the working of the pressure adsorption mechanism 3 and the pressing mechanism 4, gradually approaching and contacting the spacer paper. When it just makes contact, the pressure sensor 6 captures the initial pressure value and records it as 0N. S202. Continue to move downwards, apply a certain pressure to the spacer paper, and the spacer paper will undergo displacement changes. Pressure data and displacement data are collected in real time by pressure sensor 6 and displacement sensor 5 respectively and transmitted to data processing unit 2. S3. Data Acquisition and Analysis: When the displacement reaches the set maximum value or the pressure reaches the set maximum value, the data processing unit 2 controls the pressing adsorption mechanism 3 and the pressing mechanism 4 to stop working, and the data processing unit 2 calculates the stiffness value of the spacer paper according to the preset algorithm. S4. Result Display and Judgment; S401. Display the stiffness value on the monitor for the operator to view, and compare the stiffness value with the preset standard stiffness range to determine whether the stiffness of the spacer paper meets the requirements.
[0039] Optionally, in S2, all pressure sensors 6 are zeroed before applying pressure.
[0040] Optionally, the method further includes the following after step S101: S102. Stablely install the spacer paper roll to be tested in a fixed position on the production line, and at the same time start the spacer paper cutting on the production line. Cut the spacer paper flat according to the size requirements of the spacer paper for glass substrates. S103. Start the production line conveyor and place the cut spacer paper flat in the designated position of the support frame 1, ensuring that the spacer paper is in a natural relaxed state and without wrinkles or bends.
[0041] Optionally, the method further includes the following after step S401: S402. If the stiffness value is within the standard range, the stiffness of the spacer paper is deemed qualified. The device then uses the vacuum adsorption structure on the pressure plate 303 to adsorb the qualified spacer paper. The drive mechanism 2 resets, and then the drive mechanism 301 moves the adsorbed and fixed spacer paper upward. The data processing unit 2, in conjunction with the back-end packaging system, moves the glass substrate below the spacer paper and lays the spacer paper directly on the glass substrate (the vacuum adsorption structure stops adsorbing the spacer paper). The test data is then marked with the glass substrate ID for easy traceability. S403. If the stiffness value is not within the standard range, the stiffness of the spacer paper is deemed unqualified. The device then uses the vacuum adsorption structure on the pressure plate 303 to adsorb the unqualified spacer paper. The drive mechanism 2 resets, and then the drive mechanism 1 301 moves the adsorbed and fixed spacer paper upward. The data processing unit 2, in conjunction with the back-end waste paper processing system, removes and discards the unqualified spacer paper (the vacuum adsorption structure stops adsorbing the spacer paper). The next spacer paper is then automatically tested again using the above steps.
[0042] In Example 3, spacer papers from manufacturers A and B, suitable for the G8.5 generation glass substrate size used in the production line, were selected for verification of the device of the present invention. Finally, the suitability of the spacer papers from manufacturers A and B was confirmed through production line trials. Details are as follows: 1. Preparation (1) Turn on the power to the detection device and start the data processing unit 2 to put it into working condition. At the same time, check whether the pressure sensor 6 and displacement sensor 5 are working properly to ensure the accuracy of data acquisition; (2) Smoothly install the spacer roll to be tested in the fixed position on the production line, and at the same time start the spacer cutting on the production line, according to the spacer size of 2660mm for glass substrates. The 2330mm requirement necessitates a flat cut of the spacer paper. (3) Start the production line conveyor and place the cut spacer paper flat in the designated position of the support frame 1, ensuring that the spacer paper is in a natural relaxed state and without wrinkles or bends.
[0043] 2. Apply pressure
[0044] (1) Drive mechanism 301 controls push rod 302 to move slowly downward, thereby driving pressure sensor 6 at the bottom of pressure plate 3 to move slowly downward, and drive mechanism 2 drives pressure sensor 6 at the bottom to move slowly downward, so that pressure sensor 6 gradually approaches and contacts spacer paper. When pressure sensor 6 just contacts spacer paper, pressure sensor 6 captures the pressure value F at this time as the initial pressure value F0, which is automatically recorded as 0 N by the program.
[0045] (2) Continue to control the push rod 302 to descend and the drive mechanism 2 to work, so that the pressure plate 303 and the drive mechanism 2 apply a certain pressure to the spacer paper. During the pressure application process, the push rod 302 and the drive mechanism 2 push for 5 seconds, and count the displacement change and pressure change. The pressure sensor 6 detects the pressure F change in real time and transmits the pressure data F to the data processing unit 2. At this time, the displacement sensor 5 synchronously measures the displacement change S of the spacer paper and transmits the displacement data S to the data processing unit 2.
[0046] 3. Data Collection and Analysis
[0047] (1) When the displacement sensor 5 reaches the set displacement S maximum value of 5cm or the pressure F reaches the set maximum value of 1mN, the push rod 302 stops descending and the drive mechanism II stops working. (2) Based on the stiffness test value of the spacer paper = 0.268 ΔF ΔS is used to calculate the stiffness value of the spacer paper.
[0048] 4. Results Display and Labeling
[0049] (1) Display the stiffness value of the spacer paper calculated by the background program of data processing unit 2 on the monitor for the operator to view; (2) Compare the stiffness value with the preset standard stiffness range to determine whether the stiffness of the spacer paper meets the requirements; (3) If the stiffness value is within the standard range, the stiffness of the spacer paper is deemed to be qualified. The device then uses the vacuum adsorption structure on the pressure plate 303 to adsorb the qualified spacer paper. The drive mechanism 2 is reset, and then the drive mechanism 301 moves the spacer paper that has been adsorbed and fixed upward. The data processing unit 2, in conjunction with the back-end packaging system, moves the glass substrate below the spacer paper, lays the spacer paper directly on the glass substrate, and marks the test data with the glass substrate ID. (4) If the stiffness value is not within the standard range, the stiffness of the spacer paper is deemed unqualified. The device will then use the vacuum adsorption structure on the pressure plate 303 to adsorb the unqualified spacer paper. The drive mechanism 2 will reset, and then the drive mechanism 301 will work to move the adsorbed and fixed spacer paper upward. The data processing unit 2 will link with the back-end waste paper processing system to remove and discard the unqualified spacer paper. The next spacer paper will be automatically tested again according to the above steps.
[0050] 5. Data statistics: The table below records 10 sets of data from each of the spacer paper manufacturers A and B.
[0051]
[0052] Manufacturer A's spacer paper stiffness value of 0.52 mN·m is greater than Manufacturer B's spacer paper stiffness value of 0.17 mN·m. Furthermore, the company's current internal control standard for spacer paper usage requires that spacer paper stiffness ≥ 0.35 mN·m be used to meet the requirements. Based on the data comparison, it can be concluded that Manufacturer A's spacer paper meets the production line's usage requirements, while Manufacturer B's spacer paper does not meet the requirements.
[0053] In Comparative Example 1, to further verify the detection accuracy of the device of the present invention, laboratory samples were taken from the spacer paper of manufacturers A and B, and tested on the production line. The final judgment was made by observing the packaging effect of the trial.
[0054] 1. Sampling of spacer paper: Three sets of spacer paper samples were taken from manufacturers A and B respectively. Physicochemical indicators were tested in the laboratory. The average value of the test results was taken. The final data is shown in the table below.
[0055]
[0056] 2. Test the separator paper from manufacturers A and B on the production line respectively, and observe the effects on-site. See the compiled results below. Figure 5 (Left: The spacers from manufacturer A do not collapse during the packaging process; Right: The spacers from manufacturer B collapse during the packaging process.) Figure 6 (Left: Packaging effect of spacer paper racks from manufacturer A; Right: Packaging effect of spacer paper racks from manufacturer B): Observing the test data in the table, it was found that the spacer paper from manufacturers A and B had almost identical test results, except for a significant difference in stiffness test data. Comparison and observation. Figure 5 , Figure 6 During the packaging process, two manufacturers, A and B, used spacer paper. Manufacturer A's spacer paper did not collapse and remained upright after packaging, while Manufacturer B's spacer paper collapsed significantly. Manufacturer A's spacer paper had better stiffness than Manufacturer B's. Therefore, in actual use, Manufacturer A's spacer paper provided a better packaging effect than Manufacturer B's.
[0057] The effectiveness and accuracy of the device of the present invention can be verified through the examples and the production line trial results in the comparative examples.
[0058] While the present invention has been disclosed above, its scope of protection is not limited thereto. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention, and all such changes and modifications will fall within the scope of protection of the present invention.
Claims
1. A device for detecting spacer paper for glass substrates, characterized in that, It includes a support frame (1) and a data processing unit (2), wherein the support frame (1) is equipped with a pressing mechanism (4) and a pressing adsorption mechanism (3) for adsorbing spacer paper and applying pressure to it. The pressing mechanism (4) is equipped with a displacement sensor (5) for real-time detection of the displacement change of the spacer paper; The bottom of both the pressure adsorption mechanism (3) and the pressure mechanism (4) is provided with a pressure sensor (6) located on the same working surface, which is used to detect the pressure applied to the spacer paper by the pressure action in real time. The data processing unit (2) is electrically connected to the displacement sensor (5) and the pressure sensor (6) respectively, and is used to receive the detection signal and calculate the stiffness value of the spacer paper according to the preset algorithm.
2. The glass substrate spacer paper detection device according to claim 1, characterized in that, The pressing mechanism (4) is the second driving mechanism; the pressing adsorption mechanism (3) includes a first driving mechanism (301), a push rod (302) and a pressure plate (303). The data processing unit (2) is controlled and connected to the first driving mechanism (301) and the second driving mechanism. The driving end of the first driving mechanism (301) is connected to one end of the push rod (302) to drive the push rod (302) to make a vertical reciprocating motion on the support frame (1). The other end of the push rod (302) is connected to the top of the pressure plate (303).
3. The glass substrate spacer paper detection device according to claim 2, characterized in that, A guide structure (7) is provided between the pressure plate (303) and the support frame (1). The guide structure (7) includes a guide slide rod (701). A guide sleeve (702) is sleeved on the guide slide rod (701). The guide sleeve (702) is fitted onto the support frame (1). The bottom end of the guide slide rod (701) is connected to the top of the pressure plate (303).
4. The glass substrate spacer paper detection device according to claim 2, characterized in that, The pressure plate (303) has a cavity (3031) inside. Small holes (3032) communicating with the cavity (3031) are evenly opened at the bottom of the pressure plate (303). A sponge layer (3033) is provided at the bottom of the pressure plate (303). An air pipe (3034) communicating with the cavity (3031) is provided at the top of the pressure plate (303). The cavity (3031), small holes (3032), sponge layer (303) and air pipe (3034) form a vacuum adsorption structure on the pressure plate (303).
5. The glass substrate spacer paper detection device according to claim 1, characterized in that, The data processing unit (2) is a microcontroller or computer system, and its preset algorithm is: spacer paper stiffness detection value = 0.268 ΔF ΔS, where ΔF is the pressure change value and ΔS is the displacement change value; it can compare the calculated stiffness value with the preset standard stiffness range, link the back-end packaging system or waste paper treatment system, and automatically match the parameters of each spacer paper with the ID number of the glass substrate or dispose of unqualified spacer paper.
6. The spacer paper detection device for glass substrates according to claim 1, characterized in that, The support frame (1) is made of a material with sufficient strength and stability.
7. A method for inspecting spacer paper for glass substrates, based on the glass substrate spacer paper inspection apparatus as described in any one of claims 1-6, characterized in that, include: S1. Preparations; S101. Turn on the power and start the data processing unit (2); check whether the displacement sensor (5) and pressure sensor (6) are working properly; S2, Apply pressure; S201. The pressure sensor (6) at the bottom of the press is slowly moved down by the press adsorption mechanism (3) and the press mechanism (4), gradually approaching and contacting the spacer paper. When it just contacts the paper, the pressure sensor (6) captures the initial pressure value and records it as 0N. S202. Continue to move downwards and apply a certain pressure to the spacer paper. The spacer paper will undergo displacement changes. Pressure data and displacement data will be collected in real time by pressure sensor (6) and displacement sensor (5) respectively and transmitted to data processing unit (2). S3. Data acquisition and analysis: When the displacement reaches the set maximum value or the pressure reaches the set maximum value, the data processing unit (2) controls the pressure adsorption mechanism (3) and the pressure mechanism (4) to stop working, and the data processing unit (2) calculates the stiffness value of the spacer paper according to the preset algorithm. S4. Result Display and Judgment; S401. Display the stiffness value on the monitor for the operator to view, and compare the stiffness value with the preset standard stiffness range to determine whether the stiffness of the spacer paper meets the requirements.
8. The method of using the spacer paper for testing glass substrates according to claim 7, characterized in that, In S2, before applying pressure, all pressure sensors (6) are zeroed.
9. The method of using the spacer paper for testing glass substrates according to claim 7, characterized in that, The process after step S101 also includes: S102. Stablely install the spacer paper roll to be tested in a fixed position on the production line, and at the same time start the spacer paper cutting on the production line. Cut the spacer paper flat according to the size requirements of the spacer paper for glass substrates. S103. Start the production line conveyor and place the cut spacer paper flat in the designated position of the support frame (1).
10. The method of using the spacer paper for testing glass substrates according to claim 7, characterized in that, The process after step S401 also includes: S402. If the stiffness value is within the standard range, the stiffness of the spacer paper is deemed to be qualified. The device then uses the vacuum adsorption structure on the pressure plate (303) to adsorb the qualified spacer paper. The drive mechanism 2 is reset, and then the drive mechanism 1 (301) moves the spacer paper that has been adsorbed and fixed upwards. The data processing unit (2) links with the back-end packaging system to move the glass substrate below the spacer paper, lays the spacer paper directly on the glass substrate, and marks the detection data with the glass substrate ID. S403. If the stiffness value is not within the standard range, the stiffness of the spacer paper is deemed unqualified. The device then uses the vacuum adsorption structure on the pressure plate (303) to adsorb the unqualified spacer paper. The drive mechanism 2 is reset, and then the drive mechanism 1 (301) moves the adsorbed and fixed spacer paper upward. The data processing unit (2) links with the back-end waste paper processing system to remove and discard the unqualified spacer paper. The next spacer paper is then automatically tested according to the above steps.