Hot bending forming method and forming device for organic glass

Abstract

The invention discloses a hot bending forming method and forming device for organic glass. The method comprises the following steps: S1, providing organic glass with a panel; S2, moving the organic glass to the lower side of an infrared heating pipe to heat and soften the organic glass; and S3, putting the heated and softened organic glass in a bending clamp to be formed to obtain 3D organic glass, wherein the bending clamp comprises a clamp body of a plate structure, a plurality of grooves are formed in the upper surface of the clamp body in an array, and a bump is arranged between two adjacent grooves; and two ends of the heated and softened organic glass are embedded into the grooves, separately. By heating and softening the organic glass by means of the infrared heating pipe and putting the heated and softened organic glass in the special bending clamp to be formed, the 3D organic glass is formed. The formed organic glass is good in surface quality and high in yield. The force doesnot need to be controlled when the organic glass is bent. The forming method and the forming device are high in bending speed and high in efficiency.

Description

technical field [0001] The invention relates to the technical field of hot-bending organic glass products, in particular to a hot-bending molding method and a molding device for organic glass. Background technique [0002] Methyl methacrylate, commonly known as plexiglass, has excellent light transmittance, can pass through more than 92% of sunlight, and has high mechanical strength, excellent heat and cold resistance, corrosion resistance, and good insulation performance. Dimensionally stable, easy to form, widely used in automotive lights, instrument parts, optical lenses, decorative gifts, advertising light boxes and other fields. Plexiglass glass itself is softer than inorganic glass, and the same thickness can be folded at an increased angle. Therefore, the 3D plexiglass after hot bending can meet greater R angle tolerance or crown height tolerance. [0003] In the past, the method of bending flat plexiglass is: cutting flat plexiglass into a predetermined size and sha...

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Problems solved by technology

However, the above method has the following defects: (1) Since the surface of the curved mold is in contact with the plexiglass, the surface quality of the plexiglass after molding is poor, and everything on the curved mold will be projected on the surface of the plexiglass, and the follow-up processing is heavy; (2) Heating is used. Furnaces and fine bending molds for hot bending, very costly

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