Ultra-thin flexible glass dynamic bending test device and test method

Abstract

The present invention discloses a dynamic bending test device for ultra-thin flexible glass, comprising an electric control mechanism, a constant temperature and humidity chamber and a bending mechanism, wherein the bending mechanism is placed in the constant temperature and humidity chamber, the electric control mechanism is located outside the constant temperature and humidity chamber, a connecting hole is provided on the side wall of the constant temperature and humidity chamber, and the electric control mechanism is connected to the bending mechanism through the connecting hole. The bending mechanism comprises an upper bending plate, a lower bending plate and a coupling, wherein the lower bending plate is fixedly connected in the constant temperature and humidity chamber, the coupling is provided on both sides of the lower bending plate, the upper bending plate is connected to the coupling, and the upper bending plate rotates relative to the lower bending plate. The bending mechanism also comprises a fixed plate, wherein a fixed plate is provided at the connection between the upper bending plate and the coupling, the fixed plate is connected to the upper bending plate through a fastener, a rotating shaft is provided on the fixed plate, the rotating shaft is connected to the fixing hole on the coupling, and the upper bending plate is connected to the coupling through the rotating shaft on the fixed plate and the fixing hole. A dynamic bending test method for ultra-thin flexible glass is also disclosed.

Description

Technical Field

[0001] The invention belongs to the technical field of glass testing, and in particular relates to an ultra-thin flexible glass dynamic bending testing device and a testing method. Background Art

[0002] With the upgrading of electronic products, glass has been widely used in the electronics industry. People's pursuit of glass cover plates is becoming thinner and lighter. The emergence of folding screens has attracted the attention of many people. Ultra-thin glass cover plates have attracted more and more attention from listed companies in the electronic display industry. Ultra-thin glass (UTG) refers to glass with a thickness of less than 100μm and is flexible. Tempered ultra-thin glass is widely used in various electronic industries due to its high transparency, stability and impact resistance. Its easy-to-bend characteristics have marked a major milestone for the folding display industry, becoming an important position in the field of foldable flexible cover plates after CPI cover plates. At the same time, the bending strength of the product is an important parameter to measure the bending ability of folding screen materials. Therefore, dynamic bending is often used to simulate the use of glass materials in electronic products. However, due to the differences in consumer usage environments, it is sometimes necessary to work in high and low temperature environments. Conventional dynamic bending machines cannot simulate high and low temperature cross-heat tests because they contain electronic control parts, and the conventional test dynamic bending R angle is relatively simple and cannot be automatically adjusted. Therefore, there is still room for exploration and optimization in testing the dynamic bending method of ultra-thin glass. Summary of the invention

[0003] In view of the deficiencies in the prior art, the purpose of the present invention is to provide a dynamic bending test device for ultra-thin flexible glass, which can realize dynamic bending test of ultra-thin flexible glass in a high and low temperature humidity environment. The present invention also provides a dynamic bending test method for ultra-thin flexible glass.

[0004] To achieve the above-mentioned purpose, the technical solution of the present invention is: a dynamic bending test device for ultra-thin flexible glass, characterized in that it includes an electric control mechanism, a constant temperature and humidity chamber and a bending mechanism, the bending mechanism is placed in the constant temperature and humidity chamber, the electric control mechanism is located outside the constant temperature and humidity chamber, and a connecting hole is provided on the side wall of the constant temperature and humidity chamber, and the electric control mechanism is connected to the bending mechanism through the connecting hole.

[0005] Furthermore, the bending mechanism includes an upper bending plate, a lower bending plate and a coupling, the lower bending plate is fixedly connected in a constant temperature and humidity chamber, the coupling is arranged on both sides of the lower bending plate, the upper bending plate is connected to the coupling, and the upper bending plate rotates relative to the lower bending plate.

[0006] Furthermore, the electric control mechanism includes a motor, a housing and a drive shaft. The motor is located in the housing. One end of the drive shaft passes through the housing and is connected to the output shaft of the motor. The other end of the drive shaft passes through a connecting hole on the side wall of the constant temperature and humidity chamber and is connected to a coupling.

[0007] Furthermore, the coupling is provided with a center hole and a fixing hole for adjusting the position of the upper bending plate. The fixing hole is located at the periphery of the center hole, and the position of the fixing hole is set according to the bending radius R.

[0008] Furthermore, the upper bending plate is installed in different fixing holes to adjust the distance between the upper bending plate and the lower bending plate in the closed state, so that the test bending R angle can be adjusted.

[0009] Furthermore, the bending mechanism also includes a fixed plate, a fixed plate is provided at the connection between the upper bending plate and the coupling, the fixed plate is connected to the upper bending plate through fasteners, a rotating shaft is provided on the fixed plate, the rotating shaft is connected to the fixing hole on the coupling, and the upper bending plate is rotatably connected to the coupling through the rotating shaft on the fixed plate and the fixing hole.

[0010] Furthermore, a fixing plate is also provided on the side of the lower bending plate, the upper bending plate and the lower bending plate are both made of bakelite, and the fixing plate is a stainless steel plate.

[0011] Furthermore, the testing device also includes a frame, and the electric control mechanism is fixedly installed on the frame. The electric control mechanism also includes a fixed shaft for fixing the lower bending plate, one end of the fixed shaft is connected to the housing of the electric control mechanism, and the other end of the fixed shaft passes through the connecting hole on the side wall of the constant temperature and humidity chamber and is connected to the fixed plate on the lower bending plate.

[0012] Furthermore, the ultra-thin flexible glass is adhered to the upper bending plate and the lower bending plate by means of a photosensitive UV anti-adhesive adhesive, and the upper bending plate rotates to drive the ultra-thin flexible glass to bend.

[0013] Based on the above-mentioned ultra-thin flexible glass dynamic bending test device, the present invention also provides an ultra-thin flexible glass dynamic bending test method, the test method is:

[0014] Step a. Glue the ultra-thin flexible glass to be tested to the upper bending plate and the lower bending plate with a photosensitive UV adhesive;

[0015] Step b. By using the position of the fixed hole set on the coupling, the rotating shaft of the upper bending plate is adjusted to be installed in different fixing holes, and the distance between the upper bending plate and the lower bending plate in the closed state can be adjusted, so that the test bending R angle can be adjusted, so that the upper bending plate and the lower bending plate can be bent from 0° to 180° during the test. Dynamic bending cycle;

[0016] Step c. Set the number of bends, bend angles, and working cycles through the electronic touch screen on the electronic control mechanism. After the settings are completed, place the electronic control mechanism at room temperature, and place the bending mechanism in an environmental test chamber in a constant temperature and humidity chamber for testing under constant temperature and humidity conditions;

[0017] Step d. After the test is completed and the temperature is cooled to room temperature, the ultra-thin flexible glass sample is irradiated with ultraviolet light of a fixed intensity to reduce the viscosity of the photosensitive UV viscosity-reducing adhesive. After the viscosity-reducing effect is achieved, the ultra-thin flexible glass sample can be removed.

[0018] The advantages of adopting the technical solution of the present invention are:

[0019] 1. The surface of the bakelite material of the present invention is smooth, and has the characteristics of non-absorbent, non-conductive, high temperature resistant, and high strength. It can adapt to tests in different environments and can effectively prevent ultra-thin flexible glass samples from being scratched during the loading process to ensure the accuracy of the test. The preferred bakelite thickness is 5 to 20 mm; the upper and lower fixing plates 34 are made of stainless steel, and their main function is to fix the bakelite so that it will not move during the test.

[0020] 2. The bending mechanism of the present invention can quickly and accurately test the dynamic bending performance of ultra-thin flexible glass samples, and the bending R angle can be switched at any time during the test. After the test, the photosensitive UV de-viscosity adhesive can be de-viscositized by ultraviolet light to separate the sample. The operation is convenient, the test can be repeated, and the glass will not be damaged. The dynamic bending test device of the present invention has wide adaptability and can test various types of ultra-thin glass and flexible sensor materials under different conditions. There are no restrictions on sample material, size, plate thickness and bending R angle. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The present invention is further described in detail below with reference to the accompanying drawings and specific embodiments:

[0022] Figure 1 It is a structural schematic diagram of the bending test device of the present invention;

[0023] Figure 2 It is a schematic diagram of the bending mechanism structure of the present invention;

[0024] Figure 3 It is a schematic diagram of the side of the constant temperature and humidity chamber of the present invention;

[0025] Figure 4 It is a schematic diagram of the coupling structure of the present invention.

[0026] The marks in the above figure are: 1. Electric control mechanism; 11. Drive shaft; 12. Shell; 13. Fixed shaft; 2. Constant temperature and humidity chamber; 21. Connecting hole; 3. Bending mechanism; 31. Upper bending plate; 32. Lower bending plate; 33. Coupling; 331. Center hole; 332. Fixed hole; 34. Fixed plate; 4. Frame; 5. Ultra-thin flexible glass. DETAILED DESCRIPTION

[0027] In the present invention, it is necessary to understand that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "planar direction", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0028] like Figures 1 to 4 As shown, a dynamic bending test device for ultra-thin flexible glass is characterized in that it includes an electric control mechanism 1, a constant temperature and humidity chamber 2 and a bending mechanism 3, wherein the bending mechanism 3 is placed in the constant temperature and humidity chamber 2, the electric control mechanism 1 is located outside the constant temperature and humidity chamber 2, and a connecting hole 21 is provided on the side wall of the constant temperature and humidity chamber 2, and the electric control mechanism 1 is connected to the bending mechanism 3 through the connecting hole 21.

[0029] The bending mechanism 3 includes an upper bending plate 31, a lower bending plate 32 and a coupling 33. The lower bending plate 32 is fixedly connected in the constant temperature and humidity chamber 2. The coupling 33 is arranged on both sides of the lower bending plate 32. The upper bending plate 31 is connected to the coupling 33, and the upper bending plate 31 rotates relative to the lower bending plate 32.

[0030] The bending mechanism 3 also includes a fixing plate 34, a fixing plate 34 is provided at the connection between the upper bending plate 31 and the coupling 33, the fixing plate 34 is connected to the upper bending plate 31 through a fastener, a rotating shaft is provided on the fixing plate 34, the rotating shaft is connected to the fixing hole 332 on the coupling 33, and the upper bending plate 31 is connected to the coupling 33 through the matching of the rotating shaft on the fixing plate 34 and the fixing hole 332. A fixing plate 34 is also provided on the side of the lower bending plate 32, the upper bending plate 31 and the lower bending plate 32 are both made of bakelite, preferably bakelite, and the fixing plate 34 is a stainless steel plate.

[0031] The surface of the bakelite material is smooth and has the characteristics of non-absorbent, non-conductive, high temperature resistant, and high strength. It can adapt to tests in different environments and can effectively prevent ultra-thin flexible glass samples from being scratched during the loading process to ensure the accuracy of the test. The preferred bakelite thickness is 5 to 20 mm; the upper and lower fixing plates 34 are made of stainless steel, and their main function is to fix the bakelite so that it will not move during the test.

[0032] The electric control mechanism 1 includes a motor, a housing 12 and a drive shaft 11. The motor is located in the housing 12. One end of the drive shaft 11 passes through the housing 12 and is connected to the output shaft of the motor. The other end of the drive shaft 11 passes through the connection hole 21 on the side wall of the constant temperature and humidity chamber 2 and is connected to the coupling 33. The electric control mechanism 1 also includes a fixed shaft 13 for fixing the lower bending plate 32. One end of the fixed shaft 13 is connected to the housing 12 of the electric control mechanism 1. The other end of the fixed shaft 13 passes through the connection hole 21 on the side wall of the constant temperature and humidity chamber 2 and is connected to the fixed plate 34 on the lower bending plate 32, thereby fixing the lower bending plate 32. The test device also includes a frame 4, and the electric control mechanism 1 is fixedly mounted on the frame 4. The rotation of the motor drives the drive shaft to rotate, thereby driving the coupling to rotate, and then driving the upper bending plate (31) to flip up and down, thereby realizing the bending of the ultra-thin flexible glass.

[0033] The coupling 33 is provided with a center hole 331 and a fixing hole 332 for adjusting the position of the upper bending plate 31. The fixing hole 332 is located at the periphery of the center hole 331. The position of the fixing hole 332 is set according to the bending radius R. The upper bending plate 31 is installed in different fixing holes 332 to adjust the distance between the upper bending plate 31 and the lower bending plate 32 in the closed state, that is, to adjust the test bending R angle.

[0034] The ultra-thin flexible glass 5 is adhered to the upper bending plate 31 and the lower bending plate 32 by means of a photosensitive UV adhesive, and the upper bending plate 31 rotates to drive the ultra-thin flexible glass 5 to bend.

[0035] The bending mechanism of the present invention can quickly and accurately test the dynamic bending performance of ultra-thin flexible glass samples, and the bending R angle can be switched at any time during the test. After the test, the photosensitive UV de-viscosity adhesive can be de-viscositized by ultraviolet light to separate the sample. The operation is convenient, the test can be repeated, and the glass will not be damaged. The dynamic bending test device of the present invention has wide adaptability and can test various types of ultra-thin glass and flexible sensor materials under different conditions. There are no restrictions on sample material, size, plate thickness and bending R angle.

[0036] The dynamic bending test device of the present invention is simple to operate and convenient to operate. It only requires a bakelite board and a stainless steel upper fixing plate, an electric control mechanism and fasteners. It does not require improvement or investment in equipment development, and can be repeatedly used for a long time. The bending R angle is adjustable and the test efficiency is high. It will not cause sample damage after the test is completed, and it can adapt to testing under different temperature and humidity conditions. The test status can be monitored at any time during the process without affecting subsequent operations.

[0037] Based on the above-mentioned ultra-thin flexible glass dynamic bending test device, the present invention also provides an ultra-thin flexible glass dynamic bending test method, which is:

[0038] Step a. The ultra-thin flexible glass to be tested is adhered to the upper bending plate 31 and the lower bending plate 32 with a photosensitive UV adhesive;

[0039] Step b. By using the position of the fixed hole set on the coupling, the shaft of the upper bending plate 31 is adjusted to be installed in different fixing holes 332, and the distance between the upper bending plate 31 and the lower bending plate 32 in the closed state can be adjusted, that is, the test bending R angle can be adjusted, so that the upper bending plate 31 and the lower bending plate 32 can be bent from 0° to 180° during the test. Dynamic bending cycle;

[0040] Step c. Set the number of bends, bend angles, and working cycles through the electronic touch screen on the electronic control mechanism 1. After the settings are completed, place the electronic control mechanism 1 at room temperature, and place the bending mechanism 3 in the environmental test box constant temperature and humidity box 2 for testing under constant temperature and humidity conditions;

[0041] Step d. After the test is completed and the temperature is cooled to room temperature, the ultra-thin flexible glass sample is irradiated with ultraviolet light of a fixed intensity to reduce the viscosity of the photosensitive UV viscosity-reducing adhesive. After the viscosity-reducing effect is achieved, the ultra-thin flexible glass sample can be removed.

[0042] This testing method is not limited by glass size, thickness, etc., and can also be applied to other flexible sensor materials.

[0043] The present invention provides a dynamic bending test method for ultra-thin flexible glass, which can realize the dynamic bending test method for ultra-thin flexible glass with adjustable R angle under high and low temperature environments. The method is simple, easy to operate, and has low implementation cost. It solves the inconvenience caused by bending tests of ultra-thin glass and various flexible sensors, can adapt to bending tests under high and low temperature and humidity environments, and effectively simulates the dynamic bending test of ultra-thin flexible cover plates under different conditions, which opens up broad horizons for folding screen electronic devices and provides a new possibility for the flexible screen market.

[0044] The present invention will not cause scratches on the surface of the sample during the test process, the sample state can be observed at any time during the test, and the sample can be easily removed by using ultraviolet light to reduce viscosity after the test, thereby avoiding damage to the ultra-thin glass during the unloading process after the test.

[0045] During the test, the rotation axis of the upper bending plate 31 can freely adjust the bending radius R1-R5mm by cooperating with different fixing holes 332. In the figure, the numbers 1, 2, 3, 4, and 5 correspond to R1, R2, R3, R4, and R5 respectively. That is, the size of the dynamic bending R angle can be adjusted during the test by using the designed fixing hole size without causing damage to the ultra-thin glass.

[0046] The present invention separates the electric control mechanism from the bending mechanism 3 by adding a fixed axis, so that the electric control mechanism can work at room temperature, while the bending mechanism 3 can operate normally in the environmental test box, thereby ensuring the reliability of the test. During the test, the bending times, bending angles, and working cycles can be set through the electronic touch screen, and the upper and lower pressure plates can be bent and closed from 0° to 180° to achieve dynamic bending cycle testing.

[0047] The present invention provides an ultra-thin flexible glass dynamic bending test device with adjustable R angle in a high-low temperature and humidity environment. The device can effectively reduce the risk of damage caused by manual film loading through a UV viscosity-reducing film loading method, and can automatically switch between different bending R angles by manually adjusting the position of the fixing holes. The device is easy to operate and can simulate the bending tests of ultra-thin glass and flexible sensors in different environments, thereby improving the sample testing efficiency.

[0048] The present invention is described above by way of example in conjunction with the accompanying drawings. It is obvious that the specific implementation of the present invention is not limited to the above-mentioned method. As long as various non-substantial improvements are made using the technical solution of the present invention, or the concept and technical solution of the present invention are directly applied to other occasions without improvement, they are all within the protection scope of the present invention.

Claims

1. An ultra-thin flexible glass dynamic bending test device, characterized in that: The invention comprises an electric control mechanism (1), a constant temperature and humidity chamber (2) and a bending mechanism (3), wherein the bending mechanism (3) is placed in the constant temperature and humidity chamber (2), the electric control mechanism (1) is located outside the constant temperature and humidity chamber (2), a connecting hole (21) is provided on the side wall of the constant temperature and humidity chamber (2), and the electric control mechanism (1) is connected to the bending mechanism (3) through the connecting hole (21); the bending mechanism (3) comprises an upper bending plate (31), a lower bending plate (32) and a coupling ( The electric control mechanism (1) comprises a motor, a housing (12) and a drive shaft (11), wherein the motor is located in the housing (12), and one end of the drive shaft (11) passes through the housing (12) and is connected to the motor. The output shaft (11) is connected to the output shaft of the constant temperature and humidity chamber (2), and the other end of the driving shaft (11) passes through the connecting hole (21) on the side wall of the constant temperature and humidity chamber (2) and is connected to the coupling (33); the coupling (33) is provided with a center hole (331) and a fixing hole (332) for adjusting the position of the upper bending plate (31), the fixing hole (332) is located at the periphery of the center hole (331), and the position of the fixing hole (332) is set according to the bending radius R; the upper bending plate (31) is installed in different fixing holes (332) to adjust the distance between the upper bending plate (31) and the lower bending plate (32) in the closed state, that is, to adjust the test bending R angle; the side of the lower bending plate (32) is also provided with a fixing plate (34), the upper bending plate (31) and the lower bending plate (32) are both made of bakelite, the thickness of the bakelite plate is 5 to 20 mm, and the fixing plate (34) is a stainless steel plate used to fix the bakelite plate so that the bakelite plate will not be displaced during the test process.

2. The ultra-thin flexible glass dynamic bending test device according to claim 1, characterized in that: The bending mechanism (3) further comprises a fixing plate (34), wherein a fixing plate (34) is provided at a connection point between the upper bending plate (31) and the coupling (33), the fixing plate (34) being connected to the upper bending plate (31) via a fastener, a rotating shaft being provided on the fixing plate (34), the rotating shaft being connected to a fixing hole (332) on the coupling (33), and the upper bending plate (31) being connected to the coupling (33) via the matching of the rotating shaft on the fixing plate (34) and the fixing hole (332).

3. The ultra-thin flexible glass dynamic bending test device according to claim 2, characterized in that: The testing device further comprises a frame (4), the electric control mechanism (1) being fixedly mounted on the frame (4), the electric control mechanism (1) further comprising a fixed shaft (13) for fixing the lower bending plate (32), one end of the fixed shaft (13) being connected to a housing (12) of the electric control mechanism (1), and the other end of the fixed shaft (13) passing through a connecting hole (21) on a side wall of the constant temperature and humidity chamber (2) and being connected to a fixed plate (34) on the lower bending plate (32).

4. The ultra-thin flexible glass dynamic bending test device according to claim 3, characterized in that: The ultra-thin flexible glass (5) is adhered to the upper bending plate (31) and the lower bending plate (32) by means of a photosensitive UV anti-adhesive adhesive, and the upper bending plate (31) rotates to drive the ultra-thin flexible glass (5) to bend.

5. A dynamic bending test method for ultra-thin flexible glass, characterized in that: Based on the ultra-thin flexible glass dynamic bending test device according to any one of claims 1 to 4, the test method is: Step a. The ultra-thin flexible glass to be tested is adhered to the upper bending plate (31) and the lower bending plate (32) with a photosensitive UV adhesive; Step b. By using the position of the fixed hole set on the coupling, the rotating shaft of the upper bending plate (31) is adjusted to be installed in different fixing holes (332), and the distance between the upper bending plate (31) and the lower bending plate (32) in the closed state can be adjusted, so that the test bending R angle can be adjusted, so that the upper bending plate (31) and the lower bending plate (32) can be bent from 0° to 180° during the test. Dynamic bending cycle; Step c. Setting the number of bends, the bend angle, and the working cycle through the electronic touch screen on the electric control mechanism (1). After the setting is completed, the electric control mechanism (1) is placed at room temperature, and the bending mechanism (3) is placed in the environmental test box constant temperature and humidity box (2) for testing under constant temperature and humidity conditions; Step d. After the test is completed and the temperature is cooled to room temperature, the ultra-thin flexible glass sample is irradiated with ultraviolet light of a fixed intensity to reduce the viscosity of the photosensitive UV viscosity-reducing adhesive. After the viscosity-reducing effect is achieved, the ultra-thin flexible glass sample can be removed.

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