A fixture and method for seamlessly polymerizing plexiglass discs and flat plates

Abstract

The invention provides a tool clamp and method for polymerizing an organic glass disc and a flat plate seamlessly. The tool clamp comprises a lower pressing ring of a ring-shaped structure and an upper pressing ring of a ring-shaped structure. The lower pressing ring comprises a first O-shaped ring groove, a second O-shaped ring groove, an air inlet, an air outlet, a glue feeding channel and a glue discharging channel, wherein the first O-shaped ring groove, the glue feeding channel and the glue discharging channel are formed in the lower side face of the lower pressing ring. The tail end of the glue feeding channel communicates with the air inlet. The tail end of the glue discharging channel communicates with the air outlet. The second O-shaped ring groove is formed in the upper side face of the lower pressing ring. A first O-shaped ring and a second O-shaped ring are arranged in the first O-shaped ring groove and the second O-shaped ring groove correspondingly. In addition, the lower pressing ring is fixedly connected with the upper pressing ring. The tool clamp is simple, practical, high in controllability and capable of ensuring that air tightness of organic glass in the polymerization process meets the polymerized standard curve requirement, and meanwhile by adjusting the position of a limiting screw in a limiting block, the injection thickness of glue can be adjusted.

Description

technical field [0001] The invention relates to the field of plexiglass polymerization, in particular to a fixture and method for seamless polymerization of plexiglass discs and flat plates. Background technique [0002] Polymethyl methacrylate (PMMA), commonly known as plexiglass, also known as acrylic, is widely used in the construction industry. In the prior art, for the seamless polymerization process of the plexiglass disc and the plexiglass plate, there are the following disadvantages or deficiencies: [0003] 1. Because the polymerization reaction of methyl methacrylate is difficult to be compatible with air and oxygen, and the existing fixtures are difficult to ensure that methyl methacrylate does not come into contact with air and oxygen; [0004] 2. The glue will shrink during the polymerization reaction, and the existing technical solutions may cause shrinkage collapse and local large stress residues; [0005] 3. During the polymerization reaction, it is necessa...

AI Technical Summary

Problems solved by technology

[0003] 1. Because the polymerization reaction of methyl methacrylate is difficult to be compatible with air and oxygen, and the existing fixtures are difficult to ensure that methyl methacrylate does not come into contact with air and oxygen;

[0004] 2. The glue will shrink during the polymerization reaction, and the existing technical solutions may cause shrinkage collapse and local large stress residues;

[0005] 3. During the polymerization reaction, it is necessary to strictly control the quality of the injected glue and not introduce impurities. The existing technical solutions will introduce a large amount of impurities;

[0006] 4. During the polymerization reaction, it is necessary to strictly control the injection thickness of the glue to ensure that the glue does not explode, and the existing technical solutions cannot be well adjusted

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