Lamination molding process of high-strength laminated glass

Abstract

The invention relates to a lamination forming process of high-strength laminated glass applied to the related technical field of lamination, through the arrangement of two opposite columns, the levelness of a laminated board can be detected before lamination, so that the situation that the laminated board with poor levelness is laminated is effectively avoided, and the production efficiency is improved. By arranging the bubble sensing unit, uniform lamination in the laminated glass production process is effectively guaranteed, the quality of the laminated glass after lamination is effectively guaranteed, the situation that the thickness of a glue layer is not uniform is avoided, meanwhile, the damage rate of the glass in the lamination process caused by non-uniform lamination is also effectively avoided, and meanwhile, due to the arrangement of the bubble sensing unit, the production efficiency is improved. Compared with the prior art in which visual detection is performed after lamination, the bubble detection can be performed in the lamination process, so that real-time adjustment can be performed according to the detection result, the bubbles are effectively eliminated, the finished product is higher in quality and strength and is not easy to crack due to the bubbles in the subsequent process, and compared with the mode of performing visual detection after lamination in the prior art, the defect rate is greatly reduced, and the cost input is reduced.

Description

Technical Field

[0001] The present invention relates to a forming process of laminated glass, and in particular to a laminating forming process of high-strength laminated glass applied in the technical field related to lamination. Background Art

[0002] Laminated glass is a composite glass product made of two or more pieces of glass with one or more layers of organic polymer interlayer sandwiched between them. After special high-temperature pre-pressing (or vacuuming) and high-temperature and high-pressure process treatment, the glass and the interlayer are permanently bonded together. For example, a method for preparing laminated glass is disclosed in the Chinese patent specification with announcement number CN111483209A.

[0003] During the lamination process of laminated glass, the quality of the laminated glass after lamination is affected by many factors, such as the uniformity of lamination, whether there are bubbles in the middle glue layer, etc. However, after the laminator is used for a long time, due to accumulated wear, the laminated plate is prone to a certain tilt, resulting in poor lamination uniformity. In this case, the laminated product is prone to overall thickness inconsistency, and it is also easy to cause the bubbles in the thicker end to not be completely removed, affecting the overall strength of the laminated glass.

[0004] In order to ensure the quality of finished products, in the prior art, visual inspection is generally performed on laminated products after lamination to determine whether the lamination is qualified, rather than directly performing certain inspections on the lamination equipment before lamination. This can easily lead to batches of products being laminated after abnormal laminates, resulting in an increase in the defective rate. Summary of the invention

[0005] In view of the above-mentioned prior art, the technical problem to be solved by the present invention is that after long-term operation, the laminated board is prone to tilt to a certain extent due to accumulated wear, which affects the strength of the finished product.

[0006] In order to solve the above problems, the present invention provides a lamination process for high-strength laminated glass, comprising the following steps: S1. Select glass sheets and interlayer materials of appropriate sizes, and then thoroughly clean the glass sheets and interlayers to remove dust, grease and other contaminants on the surface to ensure good bonding during the lamination process; S2, preheating the glass sheets, and then laminating them to form a laminated structure of glass sheet--PVB interlayer--glass sheet; S3, placing the preheated and laminated laminated structure into a laminating chamber of a laminating machine with a controller, and starting a vacuum laminating machine to extract air from the laminated structure to form a vacuum environment, thereby ensuring that there are no bubbles and impurities between the glass sheet and the interlayer material to achieve a tight fit; S4. Under vacuum, a certain pressure is applied to the stacked structure through the laminating plate, and the laminating material is heated to the curing temperature of the interlayer material, so that the interlayer material fully flows between the two glass plates and fills the gap between the glass plates, and forms a strong bond with the glass plates. At the same time, the bubble sensing unit is used to perform light detection on the glue layer between the two glass plates during each lamination. When the light detection is qualified, the laminating plate is controlled to be separated from the stacked structure; S5. After laminating a certain number of stacked structures, the levelness of the laminate is tested by the opposite column. If the test fails, maintenance is carried out in time until the level is restored; S6. Cooling and shaping: After the curing is completed, the temperature is gradually lowered and the vacuum state is released, so that the laminated glass can be slowly cooled to reduce the internal stress. After curing and shaping, the laminated glass is cut and trimmed as needed to remove the excess edge parts to achieve the required size and shape, and the lamination is completed; The opposing column comprises two opposing columns which are respectively installed at two diagonally opposite upper ends of the upper end of the laminate, the opposing column comprises a positioning column fixedly connected to the laminate and a double-arm right-angle block fixedly connected to the upper end of the positioning column, pressure sensors are installed on the inner walls of the two arms of the double-arm right-angle block away from the positioning column, and the sensing end of the pressure sensor is fixedly connected to a pressure plate, and a leveling unit is arranged in the positioning column and the double-arm right-angle block, and the leveling unit comprises a boss sub-plate slidably embedded in the positioning column, a boss sub-plate fixedly installed at the lower end of the boss sub-plate and a positioning An electric push rod between the bottom walls of the columns, two step plates rotatably connected to the lower ends of the two arms of the step plate, and two supporting plates fixedly connected to the corresponding ends of the boss sub-plate and the two arms of the double-arm right-angle block, the two corresponding ends of the positioning column and the two arms of the double-arm right-angle block are chiseled with vertical grooves, the supporting plate 42 movably passes through the vertical grooves, the lower ends of the two arms of the step plate are chiseled with flat grooves, the step plate and the flat grooves match each other, and the end of the step plate close to the positioning column is placed on the upper end of the corresponding supporting plate, and a steel ball is placed on the upper end of the boss sub-plate.

[0007] In the lamination process of the above-mentioned high-strength laminated glass, the horizontality of the laminated board can be detected before lamination by setting up two opposing columns, thereby effectively avoiding the lamination of laminated boards with poor horizontality, and then effectively ensuring uniform lamination during the production process of laminated glass, thereby effectively ensuring the quality of the laminated glass after lamination, and preventing uneven thickness of the glue layer. At the same time, it also effectively avoids the damage rate of the glass during the lamination process due to uneven lamination.

[0008] As a further improvement of the present application, the edges of the mouths of the flat groove and the vertical groove on the corresponding side are interconnected, a concave step is cut on the step plate toward the lower end of the positioning column, and the supporting plate and the concave step match each other.

[0009] As a further improvement of the present application, the end of the double-arm right-angle block facing the positioning column is fixedly connected with a boss mother plate that completely matches the boss sub-plate. The inner diameter of the boss mother plate is larger than the diameter of the steel ball. When the boss sub-plate is completely matched with the boss mother plate, the step plate is embedded in the vertical groove and is flush with the inner bottom wall of the double-arm right-angle block, and the upper end of the boss sub-plate is also flush with the inner bottom wall of the double-arm right-angle block.

[0010] As a further improvement of the present application, the bubble sensing unit includes a laser emitter installed on the inner wall of one side of the laminator through an electric slide, a light expansion strip installed on the other opposite inner wall of the lamination cavity through an electric slide, and a high-definition camera installed on the side wall of the laminate. The shooting end of the high-definition camera is facing one side of the light expansion strip. The laser beam emitted by the laser emitter passes through the PVB interlayer in the stacked structure and falls on the light expansion strip.

[0011] As a further improvement of the present application, the light expansion strip includes a back panel connected to the inner wall of the laminate cavity, and a plurality of light-modifying strips fixedly connected to the back panel, and the plurality of light-modifying strips are distributed in a linear array along the direction of the back panel.

[0012] As a further improvement of the present application, the end of the back panel facing the laminate is made of non-reflective material, and the back panel is black. The light-changing strip includes a light guide strip fixedly connected to the back panel and a light receiving strip fixedly connected to the middle of the light guide strip. The midpoint of the light receiving strip is at the same height as the laser beam emitted by the laser transmitter, and both the light receiving strip and the light guide strip are made of light guiding material.

[0013] As a further improvement of the present application, the specific operation of the over-light detection in step S4 is: S41, after pressing, maintaining the pressing state of the laminate on the laminating mechanism, controlling the laser emitter to move forward and backward, so that the emitted laser beam passes through the glue layer between the two glass plates evenly from front to back; S42, the laser beam emitted by the laser transmitter passes through the adhesive layer and falls on the light expansion strip. As the laser transmitter moves, the high-definition camera captures image information at the light expansion strip; S43, when in the acquired image information, a plurality of light-changing strips are sequentially lit up to present a vertical strip shape, and adjacent lasers move evenly between two adjacent light-changing strips, it indicates that there are no bubbles in the adhesive layer; S44. When part of the light-changing strips are not lit in the acquired image information, or the movement of the light spots changes back and forth, it indicates that there are bubbles in the glue layer.

[0014] As a further improvement of the present application, the specific operation steps of step S5 are: S51, firstly, control the electric push rod to shorten, so that the boss sub-plate moves downward accordingly, and keep the distance between the boss sub-plate and the boss mother plate smaller than the diameter of the steel ball. When the boss sub-plate moves downward, the ends of the two step plates are driven to tilt downward, ensuring that the steel ball falls into the positioning column as the electric push rod shortens; S52, stand for 3-5 seconds to make the steel ball still, then control the electric push rod to extend, so that the steel ball and the end of the step plate extend synchronously, until the boss sub-plate and the boss mother plate collide, at this time the step plate is completely embedded in the flat groove, so that the bottom of the two arms of the double-arm right-angle block is filled and kept horizontal; S53, when the laminate is well level, the steel ball remains stationary; when the levelness test fails, the steel ball moves toward the inclined side and causes the pressure sensor on that side to generate force data. The controller can determine the tilt direction of the laminate according to the corresponding numbers of the pressure sensors generating force data in the two opposite columns; S54. The staff performs targeted maintenance and adjustment on the laminate according to the result of step S53, and then repeats steps S51-S53 until the levelness is good.

[0015] To sum up, through the setting of two opposing columns, the horizontality of the laminated board can be detected before lamination, thereby effectively avoiding the lamination of laminated boards with poor horizontality, and then effectively ensuring the uniform lamination in the production process of laminated glass, thereby effectively ensuring the quality of the laminated glass after lamination, and it is not easy to have uneven thickness of the glue layer. At the same time, it also effectively avoids the damage rate of glass during the lamination process due to uneven lamination. At the same time, under the setting of the bubble sensing unit, bubbles can be detected during the lamination process, so that real-time adjustments can be made according to the detection results to effectively eliminate bubbles, so that the quality and strength of the finished product are higher, and it is not easy to break due to bubbles in the future. Compared with the method of visual inspection after lamination in the prior art, the defective rate is greatly reduced and the cost investment is reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 Flowcharts of the first and second implementation methods of this application; Figure 2 A schematic diagram of a lamination cavity portion of a first embodiment of the present application; Figure 3 A three-dimensional diagram of a laminate according to a first embodiment of the present application; Figure 4 This is a bottom-up stereogram of the first embodiment of the present application when the bottom of the opposing column is in a horizontal state; Figure 5 This is a bottom-up stereogram of the first embodiment of the present application when the bottom of the opposing column is in an inclined state; Figure 6 This is an exploded view of the opposing column of the first embodiment of the present application; Figure 7 This is a bottom view comparison diagram of the double-arm right-angle block in the first embodiment of the present application in two states; Figure 8 This is a front cross-sectional view of the first embodiment of the present application when the bottom of the opposing column is in an inclined state; Fig. 9 This is a front cross-sectional view of the first embodiment of the present application when the bottom of the opposing column is in a horizontal state; Fig.10 This is a schematic diagram of a laminated cavity portion during light detection according to a second embodiment of the present application; Fig.11 This is a front view schematic diagram of a light expansion strip according to a second embodiment of the present application; Fig.12 This is a schematic diagram of the changes when the laser beam encounters bubbles during light detection in the second embodiment of the present application.

[0017] Description of the numbers in the figure: 1 opposing columns, 11 positioning columns, 12 double-arm right-angle blocks, 101 flat grooves, 102 vertical grooves, 103 boss motherboards, 2 electric push rods, 3 step plates, 41 boss sub-plates, 42 supporting plates, 5 steel balls, 6 light expansion strips, 61 back plates, 621 light receiving strips, and 622 light guide strips. DETAILED DESCRIPTION

[0018] Two implementation modes of the present application are described in detail below with reference to the accompanying drawings.

[0019] The first implementation method: Figure 1 A lamination process for high-strength laminated glass is shown, comprising the following steps: S1. Select glass sheets and interlayer materials of appropriate sizes, and then thoroughly clean the glass sheets and interlayers to remove dust, grease and other contaminants on the surface to ensure good bonding during the lamination process; S2, preheating the glass sheets, and then laminating them to form a laminated structure of glass sheet--PVB interlayer--glass sheet; S3, such as Figure 2 In the figure, a represents a laminate, b represents a laminating chamber, and c represents a laminated structure to be laminated. The laminated structure after preheating and laminating is placed in a laminating chamber of a laminator with a controller, and a vacuum laminator is started to extract the air in the laminated structure to form a vacuum environment, ensuring that there are no bubbles and impurities between the glass plate and the interlayer material, so as to achieve a close fit; S4. Under vacuum, a certain pressure is applied to the laminated structure through the laminating plate, and the laminate is heated to the curing temperature of the interlayer material, so that the interlayer material fully flows between the two glass plates and fills the gap between the glass plates, and forms a strong bond with the glass plates; S5. After laminating a certain number of stacked structures, the levelness of the laminate is tested by the opposite column. If the test fails, maintenance is carried out in time until the level is restored; S6. Cooling and shaping: After the curing is completed, the temperature is gradually lowered and the vacuum state is released, so that the laminated glass can be slowly cooled to reduce the internal stress. After curing and shaping, the laminated glass is cut and trimmed as needed to remove the excess edge parts to achieve the required size and shape, and the lamination is completed; like Figure 3 The opposite columns include two opposite columns 1 which are respectively installed at two diagonally opposite upper ends of the upper end of the laminate. Figure 4-6 The opposing column 1 includes a positioning column 11 fixedly connected to the laminate and a double-arm right-angle block 12 fixedly connected to the upper end of the positioning column 11. A leveling unit is arranged in the positioning column 11 and the double-arm right-angle block 12. The leveling unit includes a boss sub-plate 41 slidably embedded in the positioning column 11, an electric push rod 2 fixedly installed between the lower end of the boss sub-plate 41 and the inner bottom wall of the positioning column 11, two step plates 3 rotatably connected to the lower ends of the two arms of the step plate 3, and two supporting plates 42 fixedly connected to the boss sub-plate 41 and the corresponding ends of the two arms of the double-arm right-angle block 12. The two ends corresponding to the two arms of the positioning column 11 and the double-arm right-angle block 12 are both chiseled with vertical grooves 102, and the supporting plates 42 are movable The step plate 3 is movable through the vertical groove 102, and flat grooves 101 are chiseled at the lower ends of the two arms of the step plate 3. The step plate 3 and the flat grooves 101 match each other, and the end of the step plate 3 close to the positioning column 11 is placed on the upper end of the corresponding supporting plate 42. A steel ball 5 is placed on the upper end of the boss sub-plate 41, so that the electric push rod 2 can extend and shorten to control the up and down movement of the boss sub-plate 41, and the step plate 3 can move accordingly, so that after each detection, the step plate 3 can be tilted by controlling the shortening of the electric push rod 2, so as to effectively ensure that the steel ball 5 on the boss sub-plate 41 or in the two arms of the double-arm right-angle block 12 will tilt and fall back into the positioning column 11, so that the opposite column can perform multiple horizontal detections on the laminate.

[0020] like Figure 8 , pressure sensors are installed on the inner walls of the two arms of the double-arm right-angle block 12 away from the positioning column 11, and the sensing end of the pressure sensor is fixedly connected to a pressure plate. When the boss sub-plate 41 moves up and drives the step plate 3 to gradually level, so that the boss sub-plate 41, the step plate 3, and the boss mother plate 103 are synchronously flush, if the laminate is horizontal, the lifted steel ball 5 will not move, and the pressure sensor will not be triggered at this time. When its levelness is poor and there is a tilt, the steel ball 5 will move toward the lower side of the double-arm right-angle block 12 arm and trigger the pressure sensor on that side.

[0021] It is worth noting that the four pressure sensors can be numbered separately. During detection, when pressure data appears, the controller can infer the specific pressure sensor that is triggered based on the number of the data source, and then determine the direction of the laminate's tilt, providing certain instructions for maintenance staff.

[0022] The specific operation steps of step S5 are: S51, such as Figure 5 and Figure 8 First, the electric push rod 2 is controlled to shorten, so that the boss sub-plate 41 moves downward accordingly, and the distance between the boss sub-plate 41 and the boss mother plate 103 is kept smaller than the diameter of the steel ball 5. When the boss sub-plate 41 moves downward, the ends of the two step plates 3 are driven to tilt downward, ensuring that the steel ball 5 falls into the positioning column 11 as the electric push rod 2 shortens; S52, such as Fig. 9 and Figure 4 , let it stand for 3-5 seconds to make the steel ball 5 still, and then control the electric push rod 2 to extend, so that the steel ball 5 and the end of the step plate 3 are extended synchronously, until the boss sub-plate 41 contacts the boss mother plate 103, and the step plate 3 is completely embedded in the flat groove 101, so that the bottom of the two arms of the double-arm right-angle block 12 is filled and kept horizontal; S53, when the laminate is well level, the steel ball 5 remains stationary; when the levelness test fails, the steel ball 5 moves toward the inclined side and causes the pressure sensor on that side to generate force data. The controller can determine the tilt direction of the laminate according to the corresponding numbers of the pressure sensors generating force data in the two opposite columns 1; S54. The staff performs targeted maintenance and adjustment on the laminate according to the result of step S53, and then repeats steps S51-S53 until the levelness is good.

[0023] The edges of the flat groove 101 and the corresponding side vertical groove 102 are interconnected, and the step plate 3 is cut with a concave step toward the lower end of the positioning column 11. The supporting plate 42 matches the concave step, so that after the boss sub-plate 41 and the boss mother plate 103 are fully matched, the supporting plate 42 and the step plate 3 are also fully fitted. At this time, the step plate 3 and the boss mother plate 103 can be in the same plane, so that the subsequent movement of the steel ball 5 is not easily hindered.

[0024] The end of the double-arm right-angle block 12 facing the positioning column 11 is fixedly connected with a boss mother plate 103 that fully matches the boss sub-plate 41. The inner diameter of the boss mother plate 103 is larger than the diameter of the steel ball 5. When the boss sub-plate 41 fully matches the boss mother plate 103, the step plate 3 is embedded in the vertical groove 102 and is flush with the inner bottom wall of the double-arm right-angle block 12, and the upper end of the boss sub-plate 41 is also flush with the inner bottom wall of the double-arm right-angle block 12.

[0025] In the lamination process of the above-mentioned high-strength laminated glass, the horizontality of the laminated board can be detected before lamination by setting up two opposing columns, thereby effectively avoiding the lamination of laminated boards with poor horizontality, and then effectively ensuring uniform lamination during the production process of laminated glass, thereby effectively ensuring the quality of the laminated glass after lamination, and preventing uneven thickness of the glue layer. At the same time, it also effectively avoids the damage rate of the glass during the lamination process due to uneven lamination.

[0026] The second implementation method: Based on the first embodiment, this embodiment adds a bubble sensing unit and related contents, and the rest is consistent with the first embodiment.

[0027] Fig.10 It is shown that the bubble sensing unit includes a laser transmitter installed on the inner wall of one side of the laminator through an electric slide, a light expansion strip 6 installed on the other opposite inner wall of the laminating cavity through a vertically placed electric slide, and a high-definition camera installed on the side wall of the laminate. The shooting end of the high-definition camera faces one side of the light expansion strip 6. The laser beam emitted by the laser transmitter passes through the PVB interlayer in the stacked structure and falls on the light expansion strip 6. The light expansion strip 6 includes a back panel 61 connected to the inner wall of the laminating cavity, a plurality of light-changing strips fixedly connected to the back panel 61, and the plurality of light-changing strips are distributed in a linear array along the direction of the back panel 61. The end of the back panel 61 facing the laminate is made of non-reflective material, and the back panel 61 The light-changing strip includes a light-guiding strip 622 fixedly connected to the back plate 61 and a light-receiving strip 621 fixedly connected to the middle of the light-guiding strip 622. The midpoint of the light-receiving strip 621 is at the same height as the laser beam emitted by the laser transmitter, and the light-receiving strip 621 and the light-guiding strip 622 are both made of light-guiding materials. When the laser transmitter moves, when there are no bubbles in the interlayer, the laser straightly passes through the interlayer and falls on the light-expanding strip 6. As it moves, it will pass through the light-receiving strip 621 in turn. After the light beam falls on the light-receiving strip 621, it will be conducted into the light-guiding strip 622 to make it emit light, which can expand the local light phenomenon and make the acquired image information more obvious. When encountering bubbles, such as Fig.12 In the figure, d represents the laser beam. The light will be refracted, resulting in the failure of the expected light phenomenon on the light expansion strip 6. Instead, some light receiving strips 621 will not receive the laser beam, and the laser spot formed on the back plate 61 may also have a large range of translation changes between two adjacent laser landing points, rather than continuous changes.

[0028] It is worth noting that the laminated glass produced in the same batch by a laminating machine is consistent. Therefore, before the production of different batches of laminated glass, the height of the light expansion strip 6 is adjusted by a vertical electric slide to make the light receiving strip 621 and the laser emitter coaxial, and the axis passes through the central laminated layer.

[0029] Among them, two electric slides of the laser emitter need to be set up, one is vertically installed on the inner wall of the lamination cavity to adjust its height, and the other is placed longitudinally so that during light detection, the laser emitter can slide longitudinally, so that the laser beam can pass through the entire glue layer completely, thereby making the bubble sensing detection effect more comprehensive and less likely to be missed.

[0030] After the bubble sensing unit is added, the bubble sensing unit is used to perform light detection each time lamination in step S4. The specific operation of light detection is as follows: S41, after pressing, maintaining the pressing state of the laminate on the laminating mechanism, controlling the laser emitter to move forward and backward, so that the emitted laser beam passes through the glue layer between the two glass plates evenly from front to back; S42, the laser beam emitted by the laser transmitter passes through the adhesive layer and falls on the light expansion strip 6. As the laser transmitter moves, the high-definition camera captures image information at the light expansion strip 6; S43, when in the acquired image information, a plurality of light-changing strips are sequentially lit up to present a vertical strip shape, and adjacent lasers move evenly between two adjacent light-changing strips, it indicates that there are no bubbles in the adhesive layer; S44. When part of the light-changing strips are not lit in the acquired image information, or the movement of the light spots changes back and forth, it indicates that there are bubbles in the glue layer.

[0031] In summary, in the first embodiment, the levelness of the laminate is intermittently detected through two opposing columns, and the bubble sensing unit is configured to detect bubbles during the lamination process, so that real-time adjustments can be made based on the detection results and bubbles can be effectively eliminated, thereby making the quality of the laminated glass higher and the strength higher, and it is less likely to be broken due to bubbles in the future. Compared with the method of visual inspection after lamination in the prior art, the defective rate is greatly reduced and the cost investment is reduced.

[0032] In view of current practical needs, the above-mentioned implementation mode adopted in this application is not limited to the scope of protection. Various changes made within the knowledge scope of technical personnel in this field without departing from the concept of this application still fall within the scope of protection of the present invention.

Claims

1. A lamination process for high-strength laminated glass, characterized in that: The following steps are involved: S1. Select glass sheets and interlayer materials of appropriate sizes, and then thoroughly clean the glass sheets and interlayers to remove dust, grease and other contaminants on the surface to ensure good bonding during the lamination process; S2, preheating the glass sheets, and then laminating them to form a laminated structure of glass sheet--PVB interlayer--glass sheet; S3, placing the preheated and laminated laminated structure into a laminating chamber of a laminating machine with a controller, and starting a vacuum laminating machine to extract air from the laminated structure to form a vacuum environment, thereby ensuring that there are no bubbles between the glass sheet and the interlayer material to achieve a tight fit; S4. Under vacuum, a certain pressure is applied to the stacked structure through the laminating plate, and the laminating material is heated to the curing temperature of the interlayer material, so that the interlayer material fully flows between the two glass plates and fills the gap between the glass plates, and forms a strong bond with the glass plates. At the same time, the bubble sensing unit is used to perform light detection on the glue layer between the two glass plates during each lamination. When the light detection is qualified, the laminating plate is controlled to be separated from the stacked structure; S5. After laminating a certain number of stacked structures, the levelness of the laminate is tested by the opposite column. If the test fails, maintenance is carried out in time until the level is restored; S6. Cooling and shaping: After the curing is completed, the temperature is gradually lowered and the vacuum state is released, so that the laminated glass can be slowly cooled to reduce the internal stress. After curing and shaping, the laminated glass is cut and trimmed as needed to remove the excess edge parts to achieve the required size and shape, and the lamination is completed; The opposing columns include two opposing columns (1) respectively mounted on two diagonally opposite upper ends of the upper end of the laminate, the opposing columns (1) include a positioning column (11) fixedly connected to the laminate, and a double-arm right-angle block (12) fixedly connected to the upper end of the positioning column (11), the inner walls of the two arms of the double-arm right-angle block (12) away from the positioning column (11) are both mounted with pressure sensors, and the sensing end of the pressure sensor is fixedly connected to a pressure plate, and a leveling unit is arranged in the positioning column (11) and the double-arm right-angle block (12), and the leveling unit includes a boss sub-plate (41) slidably embedded in the positioning column (11), and an electric push rod (41) fixedly mounted between the lower end of the boss sub-plate (41) and the inner bottom wall of the positioning column (11). 2), two step plates (3) rotatably connected to the lower ends of the two arms of the step plate (3) and two supporting plates (42) fixedly connected to the boss sub-plate (41) and the corresponding ends of the two arms of the double-arm right-angle block (12), the two corresponding ends of the positioning column (11) and the two arms of the double-arm right-angle block (12) are both chiseled with vertical grooves (102), the supporting plates (42) movably penetrate the vertical grooves (102), the lower ends of the two arms of the step plate (3) are both chiseled with flat grooves (101), the step plate (3) and the flat groove (101) match each other, and the end of the step plate (3) close to the positioning column (11) is placed on the upper end of the corresponding supporting plate (42), and a steel ball (5) is placed on the upper end of the boss sub-plate (41).

2. The lamination process of high-strength laminated glass according to claim 1, characterized in that: The edges of the mouths of the flat groove (101) and the corresponding vertical groove (102) are connected to each other, the step plate (3) is provided with a concave step towards the lower end of the positioning column (11), and the supporting plate (42) matches the concave step.

3. The lamination process of high-strength laminated glass according to claim 1, characterized in that: The end of the double-arm right-angle block (12) facing the positioning column (11) is fixedly connected with a boss mother plate (103) that fully matches the boss sub-plate (41), and the inner diameter of the boss mother plate (103) is larger than the diameter of the steel ball (5). When the boss sub-plate (41) and the boss mother plate (103) fully match, the step plate (3) is embedded in the vertical groove (102) and is flush with the inner bottom wall of the double-arm right-angle block (12), and the upper end of the boss sub-plate (41) is also flush with the inner bottom wall of the double-arm right-angle block (12).

4. The lamination process of high-strength laminated glass according to claim 1, characterized in that: The bubble sensing unit comprises a laser transmitter mounted on the inner wall of one side of the laminator via an electric slide, a light expansion strip (6) mounted on the other opposite inner wall of the laminating chamber via an electric slide, and a high-definition camera mounted on the side wall of the laminate, wherein the shooting end of the high-definition camera faces the side of the light expansion strip (6), and the laser beam emitted by the laser transmitter passes through the PVB interlayer in the laminate structure and falls on the light expansion strip (6).

5. The lamination process of high-strength laminated glass according to claim 4, characterized in that: The light expansion strip (6) comprises a back plate (61) connected to the inner wall of the lamination cavity, and a plurality of light-modifying strips fixedly connected to the back plate (61), wherein the plurality of light-modifying strips are distributed in a linear array along the direction of the back plate (61).

6. The lamination process of high-strength laminated glass according to claim 5, characterized in that: The end of the back plate (61) facing the laminate is made of non-reflective material, and the back plate (61) is black. The light-changing strip comprises a light-guiding strip (622) fixedly connected to the back plate (61) and a light-receiving strip (621) fixedly connected to the middle of the light-guiding strip (622). The midpoint of the light-receiving strip (621) is at the same height as a laser beam emitted by a laser transmitter, and both the light-receiving strip (621) and the light-guiding strip (622) are made of light-guiding material.

7. The lamination process of high-strength laminated glass according to claim 6, characterized in that: The specific operation of the over-light detection in step S4 is: S41, after pressing, maintaining the pressing state of the laminate on the laminating mechanism, controlling the laser emitter to move forward and backward, so that the emitted laser beam passes through the glue layer between the two glass plates evenly from front to back; S42, the laser beam emitted by the laser emitter passes through the adhesive layer and falls on the light expansion strip (6), and as the laser emitter moves, the high-definition camera captures image information at the light expansion strip (6); S43, when in the acquired image information, a plurality of light-changing strips are sequentially lit up to present a vertical strip shape, and adjacent lasers move evenly between two adjacent light-changing strips, it indicates that there are no bubbles in the adhesive layer; S44. When part of the light-changing strips are not lit in the acquired image information, or the movement of the light spots changes back and forth, it indicates that there are bubbles in the glue layer.

8. The lamination process of high-strength laminated glass according to claim 3, characterized in that: The specific operation steps of step S5 are: S51, firstly, the electric push rod (2) is controlled to shorten, so that the boss sub-plate (41) moves downward accordingly, and the distance between the boss sub-plate (41) and the boss mother plate (103) is kept smaller than the diameter of the steel ball (5), and when the boss sub-plate (41) moves downward, the ends of the two step plates (3) are driven to tilt downward, so as to ensure that the steel ball (5) falls into the positioning column (11) as the electric push rod (2) shortens; S52, standing for 3-5 seconds to make the steel ball (5) still, and then controlling the electric push rod (2) to extend, so that the steel ball (5) and the end of the step plate (3) are extended synchronously, until the boss sub-plate (41) and the boss mother plate (103) are in conflict, and the step plate (3) is completely embedded in the flat groove (101), so that the bottom of the two arms of the double-arm right-angle block (12) is filled and kept horizontal; S53, when the laminate is well level, the steel ball (5) remains stationary; when the levelness test fails, the steel ball (5) moves toward the inclined side and causes the pressure sensor on that side to generate force data. The controller can determine the tilting direction of the laminate according to the corresponding numbers of the pressure sensors generating the force data in the two opposing columns (1); S54. The staff performs targeted maintenance and adjustment on the laminate according to the result of step S53, and then repeats steps S51-S53 until the levelness is good.

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