A thin, flexible glass laminate degassing device

Abstract

This utility model relates to an ultra-thin flexible glass stacking degassing device in the field of ultra-thin flexible glass technology. It includes a device cavity (1), a product placement area (2) inside the device cavity (1), multiple openings (3) in the product placement area (2), a heating component (4) inside the device cavity (1) below the product placement area (2), and a pressure pump (5) connected to the device cavity (1) below the product placement area (2). The ultra-thin flexible glass stacking degassing device of this utility model has a simple structure, reliable operation, and can conveniently and quickly degas stacked glass, reducing manufacturing damage risks and product appearance defects.

Description

Technical Field

[0001] This utility model belongs to the field of ultra-thin flexible glass technology, and more specifically, it relates to an ultra-thin flexible glass stacking debubbling device. Background Technology

[0002] As ultra-thin flexible glass is a current development trend for foldable screens, ensuring high yield rates is crucial. Due to its ultra-thin nature, the processing of individual pieces of ultra-thin flexible glass is extremely difficult, typically requiring stacking. Most ultra-thin flexible glass is stacked using adhesive coating and rolling, a method that uses rolling pressure to expel air bubbles generated during adhesive coating or product bonding. However, current adhesive dispensing processes primarily involve large-scale stacking; insufficient pressure fails to effectively remove air bubbles, while excessive pressure results in an excessively thin adhesive layer, leading to significant losses during the sheet-separation process. Therefore, improvements are needed in existing technologies.

[0003] Existing technology includes a technique titled "A Hydrolyzed UV Adhesive for Ultra-Thin Glass Lamination Processing and Its Application Method," with publication number CN116376482A. This technique discloses a hydrolyzed UV adhesive for ultra-thin glass lamination processing and its application method. Its components include a copolymer modified with methyl methacrylate and butyl methacrylate. Under ultraviolet irradiation, it can bond and fix multilayered glass. After cutting and grinding, it is placed in hot water to hydrolyze and detach the adhesive film, allowing the laminated glass to peel off into individual sheets. The hydrolyzed UV adhesive of this invention can be used in the lamination processing of ultra-thin glass for displays, touch screens, etc., and has the following characteristics: high fluidity, facilitating application and bubble removal; fast curing, low shrinkage, preventing glass bending; after curing, the adhesive film has good flexibility, moderate adhesion, and high shear strength, suitable for cutting, grinding, and other mechanical processing; after over-curing, the adhesive film loses its adhesiveness but has strong hydrophilicity, allowing for rapid and complete detachment from the glass without residue.

[0004] However, this technology does not address the technical issues and solutions of this application. Utility Model Content

[0005] The technical problem to be solved by this utility model is to provide an ultra-thin flexible glass degassing device that is simple in structure, reliable in use, and can conveniently and quickly degas laminated glass, thereby reducing the risk of manufacturing damage and the risk of poor product appearance.

[0006] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0007] This utility model is an ultra-thin flexible glass stacked degassing device, including a device cavity, a product placement area is set inside the device cavity, the product placement area is provided with multiple openings, a heating component is set inside the device cavity below the product placement area, and a pressure pump is connected to the device cavity below the product placement area.

[0008] The ultrathin flexible glass stack comprises multiple glass panels stacked one on top of the other, with an adhesive layer between adjacent glass panels.

[0009] The device cavity includes a device housing and a device cover.

[0010] The product placement area is a plate structure and is located in the middle of the device housing.

[0011] The product placement area is parallel to the bottom surface of the device housing.

[0012] The heating element is arranged on the bottom surface of the housing.

[0013] The heating element is an electric heater.

[0014] The device housing is equipped with a temperature sensor and a pressure sensor, which are respectively connected to the control components.

[0015] The working principle and beneficial effects of this utility model are as follows:

[0016] The ultra-thin flexible glass laminated degassing device of this utility model is structurally designed with a device cavity. This cavity is a container that can be opened for easy placement and removal of the laminated glass, while maintaining a reliable internal seal when closed. Inside the device cavity, there is a product placement area. The upper part of the product placement area is used to place the laminated glass to be degassed. The product placement area has multiple openings that connect the upper and lower spaces. A heating element is located inside the device cavity below the product placement area to heat the laminated glass to be degassed. A pressure pump is connected to the lower part of the device cavity to control the pressure inside the device cavity. Before using the degassing device, when applying adhesive and rolling the glass product, the adhesive layer thickness can be controlled within a set range. After application and rolling, the glass product is not cured immediately but placed in the degassing device for layered degassing. The device cavity is opened, and the laminated glass (comprising glass and adhesive layers) is placed on top of the product placement area, reliably supporting the laminated glass. Then, the pressure pump and heating components are activated, controlling the pressure and temperature to reach the set range. Air pressure, temperature, and controlled degassing time ensure that all air bubbles are completely expelled from the product. Specifically, because the glass product is placed in a sealed device cavity, when a certain temperature and air pressure are reached within the cavity, the temperature, under certain conditions, increases the activity of the adhesive, causing it to flow faster and making it easier to expel. The air pressure applies pressure to the entire surface of the product, expelling air bubbles from inside the glass. The degassing time depends on the size of the product; generally, the larger the product, the longer the degassing time. This achieves the effect of expelling air bubbles within the appropriate time. After degassing, the product is cured and can then continue to be distributed. Attached Figure Description

[0017] The following is a brief explanation of the contents depicted in the accompanying drawings and the markings therein:

[0018] Figure 1 This is a schematic diagram of the structure of the ultra-thin flexible glass stacked debubbling device of this utility model;

[0019] Figure 2 This is a schematic diagram of the structure of the ultrathin flexible glass stack described in this utility model;

[0020] The labels in the attached diagram are as follows: 1. Device cavity; 2. Product placement area; 3. Opening; 4. Heating component; 5. Pressure pump; 6. Glass; 7. Adhesive layer; 8. Device housing; 9. Device cover; 10. Bottom surface of housing. Detailed Implementation

[0021] The following description, with reference to the accompanying drawings, provides a more detailed explanation of the specific embodiments of this utility model, including the shape and structure of each component, the relative positions and connections between the parts, the functions and working principles of each part:

[0022] As attached Figure 1 - Appendix Figure 2As shown, this utility model is an ultra-thin flexible glass lamination degassing device, including a device cavity 1, a product placement area 2 inside the device cavity 1, multiple openings 3 in the product placement area 2, a heating component 4 inside the device cavity 1 below the product placement area 2, and a pressure pump 5 connected to the device cavity 1 below the product placement area 2. The above structure addresses the shortcomings of existing technologies by proposing an improved technical solution. Traditional rolling and curing methods cannot reliably remove air bubbles from the product, resulting in surface defects in subsequent processes. Forcibly removing air bubbles leads to an excessively thin adhesive layer, resulting in insufficient adhesion during cutting and CNC machining, causing product damage, or damage during the slitting process due to the thin adhesive layer. Therefore, in this structural design, the device cavity 1 is designed as a container that can be opened for easy placement and removal of the laminated glass, and can be reliably sealed internally when closed. The device cavity 1 has a product placement area 2 inside. The upper part of the product placement area 2 is used to place the laminated glass that needs to be degassed. The product placement area 2 has multiple openings 3, which connect the upper and lower spaces of the product placement area 2. The lower part of the device cavity 1 is equipped with a heating component 4, which is used to heat the laminated glass to be degassed. The lower part of the device cavity 1 is connected to a pressure pump 5, which is used to control the pressure inside the device cavity 1. Before using the degasing device of this utility model, when applying adhesive and rolling the glass product, the thickness of the adhesive layer 7 can be controlled within a set range. After the adhesive application and rolling are completed, the glass product is not cured first, but is placed in the degasing device for laminated degasing. The device cavity is opened, and the laminated glass is placed on the upper part of the product placement area 2 to reliably support the laminated glass, which includes glass and adhesive layers. Then, the pressure pump 5 and the heating component 4 are started to control the pressure and temperature to reach the set range. By using air pressure, temperature, and controlling the degasing time, the bubbles are ensured to be completely expelled from the product. Specifically, because the glass product is placed inside a sealed device cavity 1, when a certain temperature and pressure are reached inside the cavity 1, the temperature, under certain conditions, can increase the activity of the adhesive, causing it to flow faster and making it easier to expel. The pressure applies pressure to the entire surface of the product, thereby expelling air bubbles from inside the glass product. The degassing time depends on the size of the product; generally, the larger the product, the longer the degassing time. In this way, the effect of expelling air bubbles can be achieved within a certain time. After degassing, the product is then cured and can continue to circulate. The ultra-thin flexible glass laminated degassing device described in this utility model has a simple structure, is reliable in use, and can conveniently and quickly achieve degassing of laminated glass, reducing the risk of manufacturing damage and the risk of product surface defects.

[0023] The ultra-thin flexible glass laminate includes multiple glass pieces 6 stacked vertically, with an adhesive layer 7 between adjacent glass pieces 6. In this structure, the laminated glass comprises multiple glass pieces and multiple adhesive layers, with adhesive layers between adjacent glass pieces. During the application of adhesive and rolling of the glass product, the thickness of the adhesive layer 7 can be controlled within a set range. After the application of adhesive and rolling of the laminated glass are completed, the glass product is not cured immediately, but instead placed in a degassing device for degassing.

[0024] The device cavity 1 includes a device housing 8 and a device cover 9. In the above structure, the device cover is movably hinged to the device housing on one side, which facilitates the opening of the device cover, and a sealing strip is provided on the lower surface edge of the device cover to ensure that the device housing is sealed when the device cover is closed.

[0025] The product placement area 2 is a plate structure, located in the middle of the device housing 8. In this structure, the bottom layer of the laminated glass is attached to the product placement area, while the adhesive layers are exposed, ensuring that temperature and pressure reliably act on the adhesive layers and improving the degassing effect.

[0026] The product placement area 2 is parallel to the bottom surface 10 of the device housing 8. In this structure, both the product placement area 2 and the bottom surface 10 are horizontally arranged, ensuring that the laminated glass will not shift when placed in the product placement area 2. The laminated glass is removed after degassing is complete.

[0027] The heating element 4 is arranged on the bottom surface 10 of the housing. The heating element 4 is an electric heater. In the above structure, the heating element 4 is connected to the control element to realize the start and stop control of the heating element 4, and the heating element 4 is associated with the control element to realize the control of the heating temperature range. The pressure pump 5 is connected to the control element, and the control element reliably realizes the control of the pressure range.

[0028] The device housing 8 is equipped with a temperature sensor and a pressure sensor, which are respectively connected to the control component. In this structure, the temperature and pressure sensors provide real-time pressure data from within the device cavity to the control component, allowing the control component to adjust the heating element and pressure pump to ensure that the temperature and pressure are within the required range during degassing.

[0029] The ultra-thin flexible glass stacked degassing device of this utility model does not directly enter the device cavity during degassing; instead, the glass is fixed on a basket before being placed in. The structure includes a device cavity 1, which is a container that can be opened for easy placement and removal of the stacked glass, and can be closed to achieve a reliable internal seal. Inside the device cavity 1, there is a product placement area 2. The upper part of the product placement area 2 is used to place the stacked glass to be degassed. The product placement area 2 has multiple openings 3, which connect the upper and lower spaces of the product placement area 2. A heating element 4 is installed inside the device cavity 1 at the lower part of the product placement area 2 to heat the stacked glass to be degassed. A pressure pump 5 is connected to the device cavity 1 at the lower part of the product placement area 2 to control the pressure inside the device cavity 1. Before using the degassing device of this invention, when applying adhesive and rolling the glass product, the thickness of the adhesive layer 7 can be controlled within a set range. After the adhesive application and rolling are completed, the glass product is not cured immediately, but placed in the degassing device for layered degassing. The device cavity is opened, and the laminated glass is placed on top of the product placement area 2, reliably supporting the laminated glass, which includes glass and an adhesive layer. Then, the pressure pump 5 and heating component 4 are started to control the pressure and temperature to reach the set range. The air pressure, temperature, and degassing time are used to ensure that the bubbles are completely expelled from the product. Specifically, because the glass product is placed in the sealed device cavity 1, when the device cavity 1 reaches a certain temperature and air pressure, the temperature, under certain conditions, can increase the activity of the adhesive, making it flow faster and easier to expel; the air pressure will apply pressure to the entire surface of the product, thereby expelling the bubbles inside the glass product. The degassing time depends on the size of the product; generally speaking, the larger the product, the longer the degassing time. In this way, the bubbles can be removed within the specified time. After degassing, the product is then cured and can continue to be circulated.

[0030] The present invention has been described above with reference to the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described manner. Any improvements made using the inventive concept and technical solution of the present invention, or the direct application of the inventive concept and technical solution to other situations without modification, are all within the protection scope of the present invention.

Claims

1. A degassing device for ultra-thin flexible glass laminates, characterized in that: The device includes a cavity (1), a product placement area (2) is provided inside the cavity (1), multiple openings (3) are provided in the product placement area (2), a heating component (4) is provided inside the cavity (1) below the product placement area (2), and a pressure pump (5) is connected to the cavity (1) below the product placement area (2).

2. The ultra-thin flexible glass laminate degassing device according to claim 1, characterized in that: The ultrathin flexible glass stack includes multiple glass pieces (6) stacked one on top of the other, with an adhesive layer (7) between adjacent glass pieces (6).

3. The ultra-thin flexible glass laminate degassing device according to claim 1 or 2, characterized in that: The device cavity (1) includes a device housing (8) and a device cover (9).

4. The ultra-thin flexible glass laminate degassing device according to claim 3, characterized in that: The product placement area (2) is a plate structure and is located in the middle of the device box (8).

5. The ultra-thin flexible glass laminate degassing device according to claim 4, characterized in that: The product placement area (2) is parallel to the bottom surface (10) of the device housing (8).

6. The ultra-thin flexible glass laminate degassing device according to claim 5, characterized in that: The heating component (4) is arranged on the bottom surface (10) of the box.

7. The ultra-thin flexible glass laminate degassing device according to claim 1 or 2, characterized in that: The heating component (4) is an electric heater.

8. The ultra-thin flexible glass laminate debubbling device according to claim 5, characterized in that: The device housing (8) is equipped with a temperature sensor and a pressure sensor, which are respectively connected to the control components.

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