Curved glass panel forming method

Technical Field

The invention relates to a curved glass panel forming method.

Background Art

Now with curved surface of the processing of the glass panel, the current general by hot pressing method or mechanical processing modes forming, by hot-pressing method for the forming of the specific method of forming the mold, the forming die includes an upper die and a lower die, the glass panel and the upper die and lower die heated to a high temperature together with the 800 [...] left and right, and then using the direction to move down the upper mold die on the glass panel, the upper and lower surfaces of the glass panel forming, cooling is carried out, the glass panel is thus obtained with curved surface. Adopting this kind of hot-forming method, the forming of the product after grinding processing is not carried out, therefore, after forming the lower surface of the glass panel will normally be on is not, affected the appearance quality of the glass panel. Using the mechanical processing profiled in a way to utilize the particular method of forming the a plate glass panel processing into the curved surface, then the surface grinding and polishing. Using the mechanical processing method generally processing time is long, the cost is high, the grinding and polishing of the surface is relatively complicated. Therefore, how to provide a machining process is simple, and the better the planarization of the curved surface of the glass panel forming method, become the industry the problem to be solved.

Content of the invention

In view of this, it is necessary to provide a simple manufacture process, better smoothness of the curved surface of the glass panel forming method.

A curved glass panel forming method, it is used for curved surface processing of the glass panel, the curved glass panel comprises a top surface and a bottom surface, the bottom surface is a plane, the top surface is a concave surface, wherein the top surface comprises a middle of the edge of the plane and the curved surface, the curved glass panel forming method comprises the following steps:

A plate glass panel is placed into one has a concave molding surface of a forming die, and is heated to the deformation temperature of the glass can be, attached to the glass panel of the flat plate of the forming die of the concave molding surface is formed;

After forming the glass panel of the curved surface of the edge trimming processing, the curved surface of the edge of the glass panel in the rules;

The curved face of the glass panel to the edge of the edge grinding and the chamfer processing;

The bottom surface of the curved surface of the glass panel to carry out grinding and polishing.

The present invention provides method for forming the glass panel, the curved surface of the panel glass panel and a forming die is heated to the transformation temperature of the glass, the flat glass panel is attached to the the concave forming surface of the forming die for forming, and then by mechanical processing after molding the bottom surface of the glass panel to carry out grinding and polishing, forming method of the present invention processing process is simple, and by this method the curved surface of the processed better smoothness of the glass panel.

Description of drawings

Figure 1 is the embodiment of the invention provides a curved glass panel forming method of the flow chart.

Figure 2 is a schematic diagram of the curved glass panel structure.

Figure 3 to Figure 2 the flat glass is put in the schematic diagram of the forming die.

Figure 4 to Figure 2 after forming in the edge of the curved glass panel belly bottom view.

Figure 5 to Figure 2 along the curved surface of the glass panel V-V in the sectional view.

Figure 6 for Figure 5 the curved surface of the glass panel in VI amplifying schematic diagram of the at.

Figure 7 to Figure 2 in the edge of the curved glass panel edging and the chamfer side-view diagram.

Figure 8 to Figure 7 the curved surface of the glass panel at VIII in amplifying schematic diagram.

Figure 9 to Figure 2 the curved surface of the glass panel in the grinding and polishing the bottom surface of the side-view Figure.

Mode of execution

In conjuction with the following, the present invention further in detail.

Please refer to fig. 1, which is a curved glass panel forming method flowchart, the curved glass panel processing method as shown in Figure 2 for processing a curved glass panel 10, the glass panel 10 comprises a top surface 11 and a bottom surface 12, the bottom surface 12 is a plane, the top surface 11 is a curved surface, wherein the top surface 11 comprises a middle plane of the edge of the curved surface 111 and 112, the top surface 11 is a concave surface. The curved glass panel forming method comprises the following steps:

Please refer to fig. 3, a plate glass panel 20 are put into a forming die 30 in, the forming die 30 to form a concave on a molding surface 31. The flat glass panel 20 into the forming surface states the concave shape 31 in, and is heated to the transformation temperature of the glass, the glass panel of the flat plate 20 is attached to the the forming die 30 of the concave molding surface 31, thus the flat glass panel 20 is formed into the curved glass panel 10. In this embodiment, the flat glass panel 20 together with the forming die 30 is heated to together 720-780 degrees, cause the glass softening. Heating time is 10-20 minutes, to prevent rapid heating lead to rupture and of the glass of the residual stress in the glass. Then maintain the temperature (720-780 degrees) 5-10 minutes, the inside and outside of the glass temperature is uniform, differences in expansion caused by the glass and prevent break-up and residual stress. Finally cooling 10-20 minutes, the rapid cooling to prevent cracking of the glass and the residual stress in the glass.

Please refer to Figure 4, Figure 5 and Figure 6, after forming the curved surface of the glass panel 10 of edge-cutting treatment, the curved glass panel 10 is the edge of the.

Please refer to Figure 7 and Figure 8, the curved surface of the glass panel 10 to the edge of the edge grinding and chamfering processing. This embodiment adopts a computer numerical control machine of the glass panel to the curved surface 10 of the curved surface of the edge 111 do edging and chamfering processing.

Please refer to fig. 9, after forming the curved surface of the glass panel 10 of the bottom surface 12 for grinding and polishing, the bottom surface 12 to a plane grinding and polishing. In this embodiment, the plane polishing machine using a glass panel, the curved surface 10 of the bottom surface 12 for grinding and polishing, so that the bottom surface 12 is more flat.

The present invention provides method for forming the glass panel, the curved surface of the panel glass panel and a forming die is heated to the transformation temperature of the glass, the flat glass panel is attached to the the concave forming surface of the forming die for forming, and then by mechanical processing after molding the bottom surface of the glass panel to carry out grinding and polishing, forming method of the present invention processing process is simple, and by this method the curved surface of the processed better smoothness of the glass panel.

The Technical Field ordinary technical personnel should understand the, the above embodiment is only used to illustrate the invention, and is not intended as limiting of the present invention, as long as the spirit of the invention within the scope of the essence of the, by the above embodiment and changes in the appropriate change in the present invention within the scope of protection.