Crystal-clear right-angle spliced glass and its manufacturing method

Abstract

The present invention relates to crystal-clear right-angle spliced glass and a manufacturing method thereof, comprising the following steps: (1) Prepare two pieces of glass, the end faces to be spliced are 45-degree bevel faces, wherein the outer surface of the glass is longer than the inner surface, and there are the same rounded corners at the connecting part between the outer surface and the bevel face of the two pieces of glass, and perform fine grinding and polishing; (2) Fix the interlayer film on the bevel face, and use the interlayer method to bond the bevel faces of the two pieces of glass to complete the right-angle splicing. The same rounded corners form a chamfer with the same center of the circle, the same radius, and the same circumferential angle; the center of the circle is located on the bevel face. Based on the existing flat and curved laminated glass, the present invention realizes the splicing of glass right-angle laminated glass by using the interlayer bonding technology at the glass end face. This method can improve the stability and safety of the glass curtain wall and enhance the overall aesthetic effect.

Description

Technical Field

[0001] The invention relates to the technical field of glass deep processing, in particular to crystal clear right-angle spliced glass and a manufacturing method thereof. Background Art

[0002] With the development of industrial technology, people's demand for building functions is no longer just to meet functionality, but more to pursue comfortable light and a wide field of vision. With this change, the curtain wall glass as the outer layer of the building has also changed its previous glass style and become more unique and distinctive. The emergence of curved tempered glass brings more curved beauty to the glass. The preparation of curved tempered glass is based on the original flat tempered glass. By adjusting the curved wind grille so that its apex is in the same curved surface, the curved tempered glass is prepared, such as the Chinese patent "Adjustment method of variable wind grille of parallel curved tempering furnace" (ZL2009102368958). This method is suitable for single or multiple curves, the entire glass is on the curved surface, and due to the space limitation of the tempering furnace, the glass plane cannot fluctuate too much; if it is a local arc, the arc angle must not be too small, and the curvature radius must be relatively large.

[0003] Angle splicing glass solves the problem of large layout. If the splicing angle of two pieces of glass is large, close to 180 degrees, it can actually be achieved by using a single piece of glass and adjusting the wind grille. However, when the glass layout is large and the angle between the two pieces of glass is small, it cannot be achieved by using a single piece of glass and adjusting the wind grille, which requires angle splicing of the glass. Right-angle splicing glass is generally suitable for the corners of buildings or the corners of viewing balconies. How to splice can make the entire right-angle splicing glass completely transparent, without a sense of seams, beautiful and bright, and the customer's field of vision is wider. Summary of the invention

[0004] In response to the needs in the above-mentioned field, the present invention provides a method for manufacturing crystal clear right-angle spliced glass, which uses a glass lamination method to splice two sides of glass together in a right-angle form.

[0005] The crystal clear right-angle spliced glass manufactured by the present invention has a transparent intermediate film and is integrated with the oblique edges of the glass on both sides, has no sense of joints, and is beautiful and bright.

[0006] A method for manufacturing crystal clear right-angle spliced glass comprises the following steps:

[0007] (1) preparing two pieces of glass, the end faces to be spliced are 45-degree beveled surfaces, wherein the outer surface of the glass is longer than the inner surface, and the connecting parts between the outer surfaces and the beveled surfaces of the two pieces of glass have the same fillet, and are finely ground and polished;

[0008] (2) Fix the laminated film on the bevel surface, and use the laminated method to bond the bevel surfaces of the two pieces of glass to complete the right-angle splicing.

[0009] The same rounded corners are chamfers formed with the same center of the circle, the same radius, and the same circumferential angle; the center of the circle is located on the hypotenuse surface.

[0010] The interlayer film material is PVB, SGP or EVA.

[0011] The processing method of the rounded corners includes: first, machining and forming with an arc wheel, and the connection between the glass surface and the arc wheel is ground smoothly. Then, use a cup wheel to polish the arc surface. Secondly, polish with a cup wheel CE-3, and polish with the swing of the A-axis. The swing angles of the A-axis are 3, 5, 10, 20, 30, and 40 degrees in sequence, the rotation speed is 1800 revolutions per minute, and the feed speed is 0.3 meters per minute.

[0012] The bonding of the hypotenuse surfaces of the two pieces of glass includes the following steps:

[0013] 1) Prepare several right-angled splicing molds. A number of right-angled triangle templates are fixed in parallel through a connecting frame to form a right-angled splicing mold, and the right-angled sides form protruding spatial right-angled side surfaces;

[0014] 2) Fix the bottom surface of the right-angled splicing mold on a horizontal base, and glass lifting regulators are fixed at the bottoms of the two straight sides of the outermost two right-angled triangle templates.

[0015] 3) Place the two pieces of glass on the right-angled side surfaces of the right-angled splicing mold respectively, with the spliced hypotenuse surfaces of the glass facing upwards. Fix the intermediate film on the hypotenuse surface of one of the pieces of glass, and then slowly adjust the glass lifting regulator to make the two pieces of glass adhere at the right-angled point.

[0016] 4) Bond the two pieces of glass by the laminating method.

[0017] In step 3), silica gel plates are wrapped around the surface of the glass corners above and below the right-angled point.

[0018] The glass lifting regulator includes a bolt and a limit plate. The nut end on the bolt is clamped with the bottom of the straight side, and the screw end on the bolt is threadedly connected with the threaded hole on the limit plate.

[0019] The connecting frame is a frame-shaped right-angled triangular frame, and the frame-shaped right-angled triangular frame is vertically fixed to the right-angled triangle template.

[0020] The base is a bottom shelf, and the hypotenuse of the frame-shaped right-angled triangular frame is fixed to the bottom shelf.

[0021] The glass is laminated glass. First, the flat glass is cut as needed to form a 45-degree beveled edge and the same rounded corners are formed. Then, with the vertical plane on the opposite side of the beveled edge as the reference, the laminated film is fixed on the surface of the flat glass, and the laminated method is used to form the angled glass with a 45-degree beveled edge and rounded corners.

[0022] The lamination method includes: stacking two pieces of glass and the intermediate film together, and then in an autoclave, after heating and vacuuming - heating and pressurizing - maintaining pressure and temperature, then rapidly cooling - slowly cooling - maintaining temperature - rapidly cooling until room temperature, and then depressurizing to normal pressure to complete lamination.

[0023] The crystal-clear right-angle spliced glass obtained by the above manufacturing method.

[0024] In the present invention, the lamination method of flat glass is used in the end face of the spliced glass. The beveled edge and rounded corners are processed before splicing. Since it is a leading angle before splicing, to make the rounded corners form a complete rounded corner after splicing, the rounded corners of the two pieces of glass must be formed with the same center of the circle, the same radius, and the same circumferential angle. After right-angle splicing, the rounded corners can be spliced well to form a smooth transition.

[0025] Since the film is transparent and the splicing corner seam is also transparent, the entire right-angle spliced glass is crystal-clear and very beautiful and translucent.

[0026] In order to complete right-angle splicing in the present invention, a right-angle splicing mold is made, and the method of slowly adjusting the glass lifting regulator is used to complete the splicing of the two pieces of glass. The glass lifting regulator can not only be adjusted slowly so that the two pieces of glass will not collide and cause bevel defects, but also can better adjust the positions of the two pieces of glass on both sides to align them well.

[0027] The glass of the present invention can also be laminated glass. The flat glass is first cut as needed to form a 45-degree beveled edge and the same rounded corners are formed. After sandwiching the intermediate layer film to form laminated glass, the laminated film is fixed on the beveled edge, and then the two pieces of glass are adhesively fixed at a right angle by using the lamination method in the autoclave again.

[0028] The lamination method is a conventional method in the art. For reference, see the applicant's publicly patented technologies "Lamination Method for Ultra-Large Laminated Glass" (ZL2011103386503), "Autoclave Lamination Method for Ultra-Large Laminated Glass" (ZL2021111851816), etc.

[0029] Based on the existing flat and curved laminated glass, the present invention realizes the splicing of right-angle laminated glass by using the adhesive bonding technology of the lamination method at the glass end face. This method can improve the stability and safety of the glass curtain wall and enhance the overall aesthetic effect. Description of the Drawings

[0030] Figure 1It is the front view of the right-angle splicing mold,

[0031] Figure 2 It is the top view of the right-angle splicing mold,

[0032] Figure 3 It is a right-angled triangle template,

[0033] Figure 4 It is a glass lifting regulator,

[0034] Figure 5 It is the process diagram of right-angle splicing,

[0035] Figure 6 It is Figure 1 the partial enlarged view in

[0036] The labels in the figure are listed as follows: 1 - spliced glass, 2 - right-angle splicing mold, 3 - right-angled triangle template, 4 - frame-shaped right-angled triangular frame, 5 - bottom frame, 6 - silicone plate, 7 - glass lifting regulator, 8 - limit plate, 9 - bolt, 10 - film. Specific implementation mode

[0037] The following further describes the present invention in detail with reference to the accompanying drawings.

[0038] 1. Prepare the right-angle splicing mold (see Figures 1-4 )

[0039] 1-1. Manufacture 6 right-angled triangle templates 3, similar to the student's triangular ruler, and adopt a hollowing-out method to reduce the self-weight. 1-2. Manufacture 5 frame-shaped right-angled triangular frames 4 as connectors to vertically fix and connect the 6 right-angled triangle templates into a line,

[0040] The right-angle sides form protruding spatial right-angle side surfaces;

[0041] 1-3. Horizontally fix the bottom surface of the frame-shaped right-angled triangular frame on a bottom frame 5;

[0042] 1-4. A total of 4 glass lifting regulators are fixed at the bottoms of the two straight sides of the two outermost right-angled triangle templates 3 for

[0043] adjusting the height of the glass during splicing.

[0044] The glass lifting regulator consists of a bolt 9 and a limit plate 8. There is a threaded connection between the bolt 9 and the limit plate 8. The nut at one end of the bolt is stuck by the bottom. The nut can rotate in place but cannot move. Therefore, when the nut is rotated, the limit plate moves, so the glass it holds can move along the right-angle side.

[0045] 2. Preparation of laminated glass

[0046] Specifications of laminated glass: Two pieces of 1000*1000*26.28mm (two glasses and one piece of film) (two glasses of 12mm and one piece of film of 2.28mm). Laminated film: SGP film - 2.28mm thick

[0047] (1): Cut the glass into the required shape and size, with the error controlled within 1 mm;

[0048] (2): Use an edging machine to finely grind and polish the edges of the glass, and transfer it to a high-precision processing center for processing;

[0049] (3): Use the high precision of the processing center to perform bevel processing on the edges of the glass. According to the requirements of right-angled glass, fix the glass on the milling and drilling platform, select the tool to process the edges. Especially when performing bevel and arc processing on the glass, ensure the accuracy of the glass size and angle, with the required accuracy of 0.1 mm; for the requirements of the edge arc, the arc edge should be bright and crystal clear. Use different arc wheels to customize the shape accuracy. The most critical is the straightness of the arc. Insufficient straightness of the right angle will affect the splicing effect. First, check the processing center platform to make the plane of the processing center platform reach flatness, and then control the rounding. First, use the arc wheel to process into shape. At the connection between the glass surface and the arc wheel grinding, it must be ensured that the transition is smooth. The perpendicularity of the arc straight line can be judged through each grinding amount and wire rope measurement, and then use the cup-shaped wheel to polish the arc surface. The speed controlled by the processing center and the rotation speed of the wheel should both be controlled at the points. Secondly, use the cup-shaped wheel CE-3 for polishing, and the A-axis angle swings multiple times for polishing. The A-axis swing angles are respectively: 3, 5, 10, 20, 30, 40 degrees, the rotation speed is controlled at 1800 revolutions, and the feed speed is 0.3 m / min. Finally, achieve a bright and crystal clear effect. Technical requirements for the fillet: The two fillets are of the same center, the same radius, and the same circumferential angle; the center is located on the hypotenuse surface, so that a smooth transition can be formed during splicing to form a large circumferential angle.

[0050] (4): Use the glass lamination technology to bond the right-angled edges of the laminated glass,

[0051] 1) After the glass is inspected and cleaned by the cleaning machine, it enters the laminating room. The temperature of the laminating room is 18℃ - 25℃, and the humidity is 18% - 28%.

[0052] 2) The laminating room cleans the glass again and applies the adhesive. Place the film on the glass, and clean and apply the adhesive to the other piece of glass. The glass is edge-ground first and then laminated. When laminating, one end is a straight edge. Based on the straight edge, align it with a right-angle ruler, and use a vernier caliper to check whether it is aligned to complete the lamination of the sandwich.

[0053] 3) After the laminating is completed, check the overlap difference of the hypotenuse. Since the two pieces of glass need to be adhesively bonded for the second time after being taken out of the autoclave, the accuracy of the overlap difference is required to be 0.1 mm. To ensure the beauty of the glass, the four sides are wrapped with silicone plates. Then, place the glass in the autoclave, and fuse the film at a temperature of 135 °C and a pressure of 1.25 MPA in the autoclave.

[0054] 4) After the two beveled laminated glasses are taken out of the autoclave, measure the bevel angles of the two laminated glasses. After passing the measurement, splice the end faces of the hypotenuses of the 2 laminated glasses at right angles again.

[0055] 3. Right-angle splicing

[0056] Two laminated round-corner hypotenuse glasses are spliced into a round-corner right-angle glass, and the film is used for bonding in the middle of the glass. To ensure that the corners at the splicing are round, a matching silicone plate needs to be customized and wrapped on the outer surface of the glass corners to make the glass splicing more beautiful.

[0057] The glass needs to be put into the autoclave again, and the film is melted and bonded at a temperature of 135 °C and a pressure of 1.25 MPA in the autoclave.

[0058] (1) Place the glass 1 to be spliced on the right-angle side surface of the right-angle splicing mold 2, and the lower end is supported and fixed by the glass lifting regulator 7. Then, clean the cleanliness of the glass itself and repair the film residues at the hypotenuse of the glass with alcohol,

[0059] (2) After cleaning, splice the film 10 to the middle position between the two laminates again. After fixing the film, move the two glasses up from the bottom at the same time for splicing. The key point of the glass movement is to apply even and balanced force at the four corners, and do not use excessive force for fear of collision and breakage when the glasses are spliced. After splicing, the splicing seam is wrapped with a customized silicone plate 6 that matches the round corners at the top and bottom, and the round-corner splicing is fixed with high-temperature tape. See Figure 6 as shown. Then, perform vacuum packaging treatment. After vacuum pumping, check the splicing effect again. Use a string, a measuring tape and a straightedge to measure again. After there is no problem above, the rack, the template and the spliced glass as a whole enter the autoclave for operation.

[0060] The glass lifting regulator in the present invention can accurately adjust the position of the glass. The glass splicing uses a template to ensure the splicing angle. The glass lifting regulator assists in adjusting the docking error of the glass splicing seam to be small. The splicing seam is wrapped with a customized silicone plate at the top and bottom to ensure the beauty of the glue seam after molding.

[0061] (3) After the glass is taken out of the autoclave, use a right-angle ruler to measure and check the glass. After passing the inspection, it is a finished product.

Claims

1. A manufacturing method of crystal-clear right-angle spliced glass, comprising the following steps: (1) Prepare two pieces of glass, the end faces to be spliced are 45-degree bevel faces, and the outer surface of the glass is longer than the inner surface. There are the same rounded corners at the connecting part between the outer surface and the bevel face of the two pieces of glass, and they are precisely ground and polished. (2) Fix the interlayer film on the bevel face, and use the interlayer method to bond the bevel faces of the two pieces of glass to complete the right-angle splicing. The same rounded corners form a chamfer with the same center of the circle, the same radius, and the same circumferential angle; the center of the circle is located on the bevel face. The bonding of the bevel faces of the two pieces of glass includes the following steps: 1) Prepare a right-angle splicing mold. A number of right-angled triangle templates are fixedly arranged in parallel through a connecting frame to form a right-angle splicing mold, and the right-angled sides form protruding spatial right-angled side faces. 2) Fix the bottom surface of the right-angle splicing mold on a horizontal base, and glass lifting regulators are fixed at the bottoms of the two straight sides of the outermost two right-angled triangle templates. 3) Place the two pieces of glass on the right-angled side faces of the right-angle splicing mold respectively, with the splicing bevel faces of the glass facing upwards. Fix the intermediate film on the bevel face of one of the pieces of glass, and then slowly adjust the glass lifting regulators to make the two pieces of glass adhere to each other at the right-angle point. 4) Bond the two pieces of glass by using the interlayer method.

2. According to the method described in claim 1, the material of the interlayer film is PVB, SGP or EVA.

3. According to the method described in claim 1, in step 3), the upper and lower parts of the right-angle point are wrapped with silica gel plates on the surface of the glass corner.

4. According to the method described in claim 1, the glass lifting regulator includes a bolt and a limit plate. The nut end of the bolt is clamped with the bottom of the straight side, and the screw end of the bolt is threadedly connected with the threaded hole on the limit plate.

5. According to the method described in claim 1, the connecting frame is a frame-shaped right-angled triangular frame, the frame-shaped right-angled triangular frame is perpendicularly fixed to the right-angled triangle template, the base is a bottom frame, and the hypotenuse of the frame-shaped right-angled triangular frame is fixed to the bottom frame.

6. According to the method described in claim 1, the glass is laminated glass. First, the flat glass is cut as required to form a 45-degree bevel face and the same rounded corners are formed. Then, with the vertical face on the opposite side of the bevel face as the reference, the interlayer film is fixed on the surface of the flat glass, and the laminated method is used to form the angled glass with a 45-degree bevel face and rounded corners.

7. According to the method described in any one of claims 1-6, the laminating method includes: The two pieces of glass and the intermediate film are stacked and laminated, and then in an autoclave, after heating and evacuation - heating and pressurization - heat preservation and pressure maintenance, then rapid cooling - slow cooling - heat preservation - rapid cooling until room temperature, and then the pressure is reduced to normal pressure to complete the lamination.

8. The crystal-clear right-angle spliced glass manufactured by any of the methods described in claims 1-7.

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