Hemispherical plexiglass molding device and molding method thereof

Abstract

The invention relates to a hemispherical organic glass forming device and a forming method thereof. The hemispherical plexiglass forming device is used to press flat plexiglass into hemispherical plexiglass, wherein the hemispherical plexiglass forming device comprises: a lower mold, the upper end of which has a hemispherical groove having the same curvature as the hemispherical plexiglass; The upper mold, the lower end of which is hemispherical, is used for pre-compressing flat plexiglass; the upper pressing plate has an air inlet, the upper pressing plate can be fixedly connected with the lower mold, and seals the hemispherical groove; and the air blowing device, with The air inlet is connected, and the air blowing device is used for feeding air pressure into the hemispherical groove to shape the hemispherical plexiglass. In the present invention, the upper and lower molds are pre-pressed firstly, and the edge margin of the glass can be repeatedly slid to the middle, reducing the stretching amount in the middle of the glass, and then through blow molding, and the lines extruded by the mold are avoided, so that the formed hemisphere The thickness of the shaped plexiglass is uniform, and the optical performance is the best.

Description

technical field [0001] The invention relates to a method for forming organic glass, in particular to a hemispherical organic glass forming device and a forming method thereof. Background technique [0002] Because the spherical plexiglass has a large radian and is difficult to form, the molding method used in the prior art spherical plexiglass is usually formed by injection molding. It is to make the special injection mold required for spherical plexiglass first, and then spherical The liquid material of plexiglass is poured into the injection mold and formed. [0003] In the process of realizing the present invention, the inventor finds that there are at least the following problems in the prior art: [0004] The spherical plexiglass formed by the injection molding method of the prior art has poor performance, poor durability, and poor tensile strength, usually less than 50 megapascals (MPa), and is easily broken and cracked. [0005] Therefore, be badly in need of resear...

AI Technical Summary

Problems solved by technology

[0004] The spherical plexiglass formed by the injection molding method of the prior art has poor performance, poor durability, and poor tensile strength, usually less than 50 megapascals (MPa), and is easily broken and cracked

[0005] Therefore, be badly in need of developing a kind of novel hemispherical plexiglass forming method, to solve the poor performance of the spherical plexiglass prepared by the forming method of the prior art, poor durability and poor tensile strength problems

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