A bubble removal device for laminated glass

Abstract

This utility model relates to a bubble removal device for laminated glass, belonging to the field of glass preparation. It includes a worktable, a placement mechanism, and a heating mechanism. The placement mechanism includes an upper mold, a lower mold, a placement frame, a first telescopic cylinder, and a pressure table. The lower mold and the placement frame are fixedly mounted on the worktable. The cylinder body of the first telescopic cylinder is fixedly mounted on the placement frame, and the pressure table is fixedly mounted on the piston rod of the first telescopic cylinder. The upper mold is fixedly mounted at the bottom end of the pressure table. A first heating chamber is formed between the pressure table and the upper mold, and a second heating chamber is formed between the worktable and the lower mold. The heating mechanism includes an air inlet pipe and an air outlet pipe. This utility model can improve the bubble removal effect of laminated glass and enhance the forming quality of laminated glass.

Description

Technical Field

[0001] This utility model relates to the field of glass preparation, and in particular to a device for removing air bubbles from laminated glass. Background Technology

[0002] Laminated glass, due to its excellent safety performance and aesthetics, is increasingly widely used in construction, automotive, and other industries. Laminated glass typically consists of two or more panes of glass bonded together with one or more polymer interlayers through a process of heating and pressurization. However, during manufacturing, especially before the high-temperature, high-pressure treatment, air bubbles can easily become trapped between the glass and the interlayer, forming bubble defects. This not only affects the appearance quality of the laminated glass but can also reduce its structural integrity and safety.

[0003] Currently, a Chinese utility model patent with publication number CN205710446U and publication date of November 23, 2016, proposes a laminated glass for automotive windshields. When dealing with this special curved laminated glass, existing de-bubbling equipment is basically designed for flat laminated glass. Due to the limitations of glass forming, it cannot be directly used on curved laminated glass. The de-bubbling of the laminated glass is basically done by manual extrusion.

[0004] Regarding the aforementioned technologies, the manual bubble removal process for curved laminated glass is too complicated and inefficient, resulting in poor glass forming quality. Utility Model Content

[0005] In order to improve the effect of de-bubbling in laminated glass and thus enhance the forming quality of laminated glass, this utility model provides a de-bubbling device for laminated glass.

[0006] This utility model provides a bubble removal device for laminated glass, which adopts the following technical solution:

[0007] A debubbling device for laminated glass includes a worktable, a placement mechanism, and a heating mechanism. The placement mechanism includes an upper pressing mold, a lower pressing mold, a placement frame, a first telescopic cylinder, and a pressure table. The lower pressing mold is fixedly installed on the worktable, the placement frame is fixedly installed on the worktable, the cylinder body of the first telescopic cylinder is fixedly installed on the placement frame, the pressure table is fixedly installed on the piston rod of the first telescopic cylinder, and the upper pressing mold is fixedly installed at the bottom end of the pressure table.

[0008] A first heating chamber is provided between the pressure table and the upper pressure mold, and a second heating chamber is provided between the worktable and the lower pressure mold;

[0009] The heating mechanism includes an air inlet pipe and an air outlet pipe. The outlet end of the air inlet pipe is connected to the air inlet of the first heating chamber and the air inlet of the second heating chamber, respectively. The inlet end of the air outlet pipe is connected to the air outlet of the first heating chamber and the air outlet of the second heating chamber, respectively.

[0010] Preferably, the upper mold is equipped with a plurality of first guide plates, which are located within the first heating chamber; the lower mold is equipped with a plurality of second guide plates, which are located within the second heating chamber.

[0011] Preferably, both the first guide plate and the second guide plate are arc-shaped.

[0012] Preferably, the placement mechanism further includes a conveying assembly, with two sets of the conveying assemblies mounted opposite each other on the worktable. Each conveying assembly includes a second telescopic cylinder, a conveying frame, a conveying roller, a conveyor belt, and a conveying motor. The conveying frame is slidably mounted on the worktable, the cylinder body of the second telescopic cylinder is fixedly mounted on the worktable, the piston rod of the second telescopic cylinder is fixedly connected to the conveying frame, the conveying roller is rotatably mounted on the conveying frame, the conveyor belt is sleeved on the conveying roller, and the conveying motor is fixedly mounted on the conveying frame and is drively connected to the conveying roller.

[0013] Preferably, the conveying assembly further includes a distance sensor, which is fixedly mounted on the conveying frame and is electrically connected to the second telescopic cylinder.

[0014] Preferably, the placement mechanism further includes a baffle, which is fixedly installed on the pressure table.

[0015] Preferably, the placement mechanism further includes guide rods and limiting blocks. One end of the multiple guide rods is fixedly connected to the upper end of the pressure table, and the other end slides through the placement frame. The limiting block is threadedly connected to the guide rod and is located at one end of the guide rod and the pressure table.

[0016] Preferably, the bottom surface of the upper mold has a plurality of first air outlets, which are connected to the first heating chamber, and the top surface of the lower mold has a plurality of second air outlets, which are connected to the second heating chamber.

[0017] Preferably, the heating mechanism further includes a booster pump, the inlet of which is connected to an air source, and the outlet of which is connected to the inlet of the air inlet pipe.

[0018] Preferably, a protective plate is installed at the bottom of the pressure table.

[0019] In summary, this utility model has at least one of the following beneficial technical effects:

[0020] 1. With the upper and lower molds clamped together, high-temperature gas is introduced through the air inlet pipe. This high-temperature gas can be recycled from heat generated by other equipment for reuse, or it can be high-temperature gas heated to a specified temperature by a heater. The high-temperature gas is introduced into the first and second heating chambers to heat the upper and lower molds evenly and centrally, allowing the laminated glass to be heated quickly and evenly. After heating, the gas is discharged through the exhaust pipe. Simultaneously, under the shaping and pressing of the upper and lower molds, the film in the laminated glass softens evenly and the gas is discharged. The hot airflow directly contacts the lower and upper molds and is quickly conducted to the glass surface, shortening the heating time, improving heating efficiency, and enhancing the de-bubbling effect, thus improving the forming quality of the laminated glass.

[0021] 2. By using a conveyor assembly, the step of manually handling the base glass sheet is eliminated, which improves the processing efficiency of the base glass, enables automatic positioning of the laminated glass, and improves the positioning accuracy of the laminated glass.

[0022] 3. The second telescopic cylinder adjusts the corresponding telescopic distance and controls the rotation direction and speed of the conveyor belt to correct the position of the laminated glass plate, so that the laminated glass is in the optimal position, and then the de-bubbling process is carried out, which further improves the de-bubbling effect and reduces the possibility of damage to the laminated glass plate. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model;

[0024] Figure 2 yes Figure 1 A magnified view of part A in the middle;

[0025] Figure 3 yes Figure 1 A schematic diagram of the other end;

[0026] Figure 4 This is a schematic diagram on the left side of an embodiment of the present invention;

[0027] Figure 5 yes Figure 4 Cross-sectional view along direction B;

[0028] Figure 6 yes Figure 4 Cross-sectional view along the C-direction;

[0029] Figure 7 This is a schematic diagram of the structure after the baffle and protective plate are installed in an embodiment of this utility model.

[0030] Explanation of reference numerals in the attached drawings: 100, workbench; 200, placement mechanism; 210, upper pressure mold; 211, first guide plate; 212, first air outlet; 220, lower pressure mold; 221, second guide plate; 222, second air outlet; 230, placement frame; 240, first telescopic cylinder; 250, pressure table; 260, conveying assembly; 261, second telescopic cylinder; 262, conveying frame; 263, conveying roller; 264, conveyor belt; 265, conveyor motor; 266, distance sensor; 270, baffle; 280, guide rod; 290, limit block; 300, heating mechanism; 310, air inlet pipe; 320, exhaust pipe; 330, first heating chamber; 340, second heating chamber; 350, booster pump; 400, protective plate. Detailed Implementation

[0031] The following is in conjunction with the appendix Figure 1 To be continued Figure 7 The technical solutions in the embodiments of this utility model are clearly and completely described herein. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this utility model.

[0032] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0033] Furthermore, in this utility model, the use of terms such as "first," "second," etc., is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0034] In this utility model, unless otherwise explicitly specified and limited, the terms "connection," "fixing," etc., should be interpreted broadly. For example, "fixing" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0035] Furthermore, the technical solutions of the various embodiments of this utility model can be combined with each other, but only if they are based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0036] This utility model discloses a device for removing air bubbles from laminated glass. (Refer to...) Figures 1 to 7 A debubbling device for laminated glass mainly includes a worktable 100, a placement mechanism 200, and a heating mechanism 300. The placement mechanism 200 includes an upper pressing mold 210, a lower pressing mold 220, a placement frame 230, a first telescopic cylinder 240, and a pressure table 250. The lower pressing mold 220 is fixedly installed on the worktable 100, the placement frame 230 is fixedly installed on the worktable 100, the cylinder body of the first telescopic cylinder 240 is fixedly installed on the placement frame 230, the pressure table 250 is fixedly installed on the piston rod of the first telescopic cylinder 240, and the upper pressing mold 210 is fixedly installed on the pressure table 250. At the bottom, a first heating chamber 330 is provided between the pressure table 250 and the upper pressure mold 210, and a second heating chamber 340 is provided between the worktable 100 and the lower pressure mold 220. The heating mechanism 300 includes an air inlet pipe 310 and an exhaust pipe 320. The outlet end of the air inlet pipe 310 is connected to the air inlet of the first heating chamber 330 and the air inlet of the second heating chamber 340, respectively. The inlet end of the exhaust pipe 320 is connected to the air outlet of the first heating chamber 330 and the air outlet of the second heating chamber 340, respectively. Both the air inlet pipe 310 and the exhaust pipe 320 are flexible pipes or bendable conveying pipes.

[0037] Before removing air bubbles, the workers install the upper pressure mold 210 and lower pressure mold 220, which are adapted to the curved laminated glass, in designated positions. The workers place the curved laminated glass on the lower pressure mold 220, with the curved surface of the lower pressure mold 220 fitting against the curved surface of the laminated glass. Then, the pressure table 250 is lowered by the first telescopic cylinder 240, so that the curved surface of the upper pressure mold 210 fits against the upper surface of the laminated glass. If the lower pressure mold 220 is a concave mold, then the upper pressure mold 210 is a convex mold; if the lower pressure mold 220 is a convex mold, then the upper pressure mold 210 is a concave mold. The appropriate mold can be selected according to the actual working conditions of the laminated glass. With the upper mold 210 and lower mold 220 clamped together on both sides, high-temperature gas is introduced through the air inlet pipe 310. The high-temperature gas can be regenerated high-temperature gas from other equipment for reuse, or it can be high-temperature gas heated to a specified temperature by a heater. The high-temperature gas is introduced into the first heating chamber 330 and the second heating chamber 340 to heat the upper mold 210 and lower mold 220 in a concentrated and uniform manner, so that the laminated glass plate is heated quickly and evenly. After heating, the gas is discharged through the exhaust pipe 320. At the same time, under the shaping and pressing of the upper mold 210 and lower mold 220, the film in the laminated glass is softened and uniformly, and the gas in it is discharged. The hot airflow directly contacts the lower mold 220 and upper mold 210, and is quickly conducted to the glass surface, shortening the heating time, improving the heating efficiency, improving the de-bubbling effect, and improving the forming quality of the laminated glass.

[0038] Reference Figure 5 and Figure 6 In some embodiments, a plurality of first guide plates 211 are installed on the upper mold 210, and the first guide plates 211 are located within the first heating chamber 330; a plurality of second guide plates 221 are installed on the lower mold 220, and the second guide plates 221 are located within the second heating chamber 340. The first guide plates 211 or the second guide plates 221 forcibly change the hot airflow path, eliminate low-temperature dead zones within the heating chamber, ensure uniform heating of all areas of the curved glass, improve the heating effect, and further enhance the bubble removal effect.

[0039] Reference Figure 5 and Figure 6 In some embodiments, both the first guide plate 211 and the second guide plate 221 are arc-shaped. The arc-shaped design of the first guide plate 211 and the second guide plate 221 allows the high-temperature gas to remain for a longer time, increases the contact area, and thus better absorbs and conducts heat, uniformly heating the upper mold 210 and the lower mold 220, further improving the degassing effect.

[0040] Reference Figures 1 to 3In some embodiments, the placement mechanism 200 further includes a conveying assembly 260. Two sets of conveying assemblies 260 are mounted opposite each other on the workbench 100. The conveying assembly 260 includes a second telescopic cylinder 261, a conveying frame 262, a conveying roller 263, a conveyor belt 264, and a conveying motor 265. The conveying frame 262 is slidably mounted on the workbench 100. The cylinder body of the second telescopic cylinder 261 is fixedly mounted on the workbench 100. The piston rod of the second telescopic cylinder 261 is fixedly connected to the conveying frame 262. The conveying roller 263 is rotatably mounted on the conveying frame 262. The conveyor belt 264 is sleeved on the conveying roller 263. The conveying motor 265 is fixedly mounted on the conveying frame 262 and is drively connected to the conveying roller 263. When applied to the production line, a conveyor device transports the laminated glass, after vacuum degassing, to the workbench 100. The height of the conveyor device is slightly higher than the height of the workbench 100. Part of the laminated glass is placed on the lower pressing mold 220. Simultaneously, the conveyor motor 265 drives the conveyor roller 263 to rotate, which in turn drives the conveyor belt 264 to rotate. The second telescopic cylinder 261 moves the conveyor frame 262 to a set position, clamping both ends of the laminated glass. This achieves simultaneous positioning and clamping, improving the positioning accuracy of the laminated glass. The conveyor belt 264 continues to move the laminated glass, ensuring that the entire laminated glass covers the lower pressing mold 220. After positioning, the second telescopic cylinder 261... The retracting cylinder 261 retracts the conveyor frame 262 to a designated position to prevent the conveyor frame 262 or the conveyor belt 264 from obstructing the normal pressing stroke of the pressing mold 220, and then continues the subsequent pressing, heating and de-bubbling process. After the de-bubbling process is completed, the second telescopic cylinder 261 pushes the conveyor frame 262 again, clamping the conveyor belt 264 with the laminated glass plate, and continues to transport the laminated glass plate out of the de-bubbling equipment to the next conveying device to continue the subsequent processing flow. The subsequent de-bubbling process of laminated glass is carried out in this manner. This eliminates the step of manually handling the base glass plate, improves the processing efficiency of the base glass, realizes automatic positioning of the laminated glass, and improves the positioning accuracy of the laminated glass.

[0041] Reference Figure 2 In some embodiments, the conveying assembly 260 further includes a distance sensor 266, which is fixedly mounted on the conveyor frame 262 and electrically connected to the second telescopic cylinder 261. The distance sensor 266 detects the distance between the two ends and both sides of the laminated glass, and transmits the displacement and position information of the laminated glass to the signal processing module. Based on the data information, the module performs correction, causing the second telescopic cylinders 261 at both ends to adjust the corresponding telescopic distance. Simultaneously, the controller program automatically controls or manually controls the rotation direction and speed of the conveyor belt 264 to correct the position of the laminated glass, placing it in an optimal position before the air bubble removal process is performed. This further improves the air bubble removal effect and reduces the possibility of damage to the laminated glass.

[0042] Reference Figure 7 In some embodiments, the placement mechanism 200 further includes a baffle 270, which is fixedly mounted on the pressure table 250. As the pressure table 250 descends, the baffle 270 can block and position the laminated glass when the edge of the glass contacts the baffle 270, reducing the possibility of excessive displacement of the glass and improving positioning accuracy.

[0043] Reference Figure 1 In some embodiments, the placement mechanism 200 further includes guide rods 280 and limiting blocks 290. One end of each guide rod 280 is fixedly connected to the upper end of the pressure table 250, and the other end slides through the placement frame 230. The limiting block 290 is threadedly connected to the guide rods 280 and is located at one end of the guide rods 280 and the pressure table 250. The guide rods 280 ensure that the pressure table 250 presses down in a straight line, preventing uneven stress on the curved glass due to off-center loading and subsequent breakage. The limiting block 290 mechanically limits the downward stroke, preventing abnormal pressure from the first telescopic cylinder 240 from crushing the glass.

[0044] Reference Figure 5 In some embodiments, the bottom surface of the upper mold 210 is provided with multiple first air outlets 212, which are connected to the first heating chamber 330. The top surface of the lower mold 220 is provided with multiple second air outlets 222, which are connected to the second heating chamber 340. After the heating and degassing are completed, the first telescopic cylinder 240 rises slightly, and then a small gap is created between the laminated glass and the lower mold 220 and the upper mold 210. The first air outlets 212 and the second air outlets 222 begin to release air, blowing the laminated glass away from the upper mold 210 and the lower mold 220. This prevents the laminated glass from adhering to or adsorbing onto the upper mold 210 or the lower mold 220, reduces the defect rate, and improves the yield of laminated glass.

[0045] Reference Figure 1 In some embodiments, the heating mechanism 300 further includes a booster pump 350, the inlet of which is connected to a gas source, and the outlet of which is connected to the inlet of the inlet pipe 310. The booster pump 350 maintains a constant hot gas flow pressure, overcoming the possibility of uneven heating due to unstable high-temperature gas source pressure, and ensuring uniform heating of high and low points on the curved surface.

[0046] Reference Figure 7 In some embodiments, a protective plate 400 is installed at the bottom of the pressure table 250. The protective plate 400 blocks the area around the edge of the laminated glass, reducing the impact of the high-temperature airflow on the outside environment during the exhaust process, and also reducing the possibility of accidental injury from flying glass in the event of accidental glass breakage, thus improving safety.

[0047] The implementation principle of the air bubble removal device for laminated glass in this embodiment of the utility model is as follows:

[0048] High-temperature gas is introduced by clamping the upper mold 210 and the lower mold 220, so that the upper and lower surfaces of the laminated glass are heated synchronously and uniformly, which significantly improves the softening efficiency of the laminate and the effect of bubble removal. Combined with the automatic conveying component 260 and the telescopic cylinder dynamic posture adjustment system, high-precision positioning and position correction are completed while eliminating manual handling. This reduces the risk of glass damage and ensures the consistency of the defoaming process, ultimately achieving a dual optimization of molding quality and production energy efficiency.

[0049] The above are all preferred embodiments of this utility model, and are not intended to limit the scope of protection of this utility model. Therefore, all equivalent changes made to the structure, shape and principle of this utility model should be covered within the scope of protection of this utility model.

Claims

1. A bubble removal device for laminated glass, characterized in that: The device includes a workbench (100), a placement mechanism (200), and a heating mechanism (300). The placement mechanism (200) includes an upper pressing mold (210), a lower pressing mold (220), a placement frame (230), a first telescopic cylinder (240), and a pressing table (250). The lower pressing mold (220) is fixedly installed on the workbench (100), the placement frame (230) is fixedly installed on the workbench (100), the cylinder body of the first telescopic cylinder (240) is fixedly installed on the placement frame (230), the pressing table (250) is fixedly installed on the piston rod of the first telescopic cylinder (240), and the upper pressing mold (210) is fixedly installed at the bottom end of the pressing table (250). A first heating chamber (330) is provided between the pressing table (250) and the upper pressing mold (210), and a second heating chamber (340) is provided between the worktable (100) and the lower pressing mold (220). The heating mechanism (300) includes an air inlet pipe (310) and an exhaust pipe (320). The outlet end of the air inlet pipe (310) is connected to the air inlet of the first heating chamber (330) and the air inlet of the second heating chamber (340), respectively. The inlet end of the exhaust pipe (320) is connected to the air outlet of the first heating chamber (330) and the air outlet of the second heating chamber (340), respectively.

2. The air bubble removal equipment for laminated glass according to claim 1, characterized in that: The upper mold (210) is equipped with a plurality of first guide plates (211), which are located in the first heating chamber (330); the lower mold (220) is equipped with a plurality of second guide plates (221), which are located in the second heating chamber (340).

3. The air bubble removal equipment for laminated glass according to claim 2, characterized in that: Both the first guide plate (211) and the second guide plate (221) are arc-shaped.

4. The air bubble removal equipment for laminated glass according to any one of claims 1-3, characterized in that: The placement mechanism (200) further includes a conveying assembly (260). Two sets of the conveying assemblies (260) are mounted opposite each other on the workbench (100). The conveying assembly (260) includes a second telescopic cylinder (261), a conveying frame (262), a conveying roller (263), a conveyor belt (264), and a conveying motor (265). The conveying frame (262) is slidably mounted on the workbench (100). The cylinder body of the second telescopic cylinder (261) is fixedly mounted on the workbench (100). The piston rod of the second telescopic cylinder (261) is fixedly connected to the conveying frame (262). The conveying roller (263) is rotatably mounted on the conveying frame (262). The conveyor belt (264) is sleeved on the conveying roller (263). The conveying motor (265) is fixedly mounted on the conveying frame (262). The conveying motor (265) is drively connected to the conveying roller (263).

5. The air bubble removal equipment for laminated glass according to claim 4, characterized in that: The conveying assembly (260) also includes a distance sensor (266), which is fixedly mounted on the conveying frame (262) and is electrically connected to the second telescopic cylinder (261).

6. The air bubble removal equipment for laminated glass according to claim 4, characterized in that: The placement mechanism (200) also includes a baffle (270), which is fixedly installed on the pressure table (250).

7. The air bubble removal equipment for laminated glass according to claim 4, characterized in that: The placement mechanism (200) further includes guide rods (280) and limiting blocks (290). One end of each guide rod (280) is fixedly connected to the upper end of the pressure table (250), and the other end is slidably mounted on the placement frame (230). The limiting block (290) is threadedly connected to the guide rods (280) and is located at one end of the guide rods (280) and the pressure table (250).

8. The air bubble removal equipment for laminated glass according to claim 2, characterized in that: The bottom surface of the upper mold (210) is provided with a plurality of first air outlets (212), which are connected to the first heating chamber (330). The top surface of the lower mold (220) is provided with a plurality of second air outlets (222), which are connected to the second heating chamber (340).

9. The air bubble removal equipment for laminated glass according to claim 8, characterized in that: The heating mechanism (300) also includes a booster pump (350), the inlet of which is connected to an air source, and the outlet of which is connected to the inlet of the air inlet pipe (310).

10. The air bubble removal equipment for laminated glass according to claim 1, characterized in that: A protective plate (400) is installed at the bottom of the pressure table (250).

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