Blue-ray disc die assembly

Abstract

The invention discloses a blue-ray disc die assembly, which comprises a mounting base, a lower mold plate and an upper mold plate. The mounting base is provided with a level mounting surface; the lower mold plate is arranged on the mounting surface; the lower mold plate is provided with a level lower laminating surface; the upper mold plate is provided with a level upper laminating surface opposite to the lower laminating surface; the center of the lower laminating surface protrudes a positioning column; and the upper laminating surface facing the positioning column dents inwards to form a positioning hole. The blue-ray disc die assembly also comprises an elastic circular gasket, wherein the center of the gasket is provided with a mounting hole; the positioning column passes through the mounting hole of the gasket to make the gasket borne on the lower laminating surface; and an outer ring of the gasket is provided with a protruding ring protruding the faced upper laminating surface. The blue-ray disc die assembly can automatically adjust an upper mold and a lower mold to reach micron-sized parallelism in the process of pressing dies.

Description

technical field [0001] The invention relates to the field of Blu-ray discs, in particular to a Blu-ray disc compression molding device for compression-molding the Blu-ray discs. Background technique [0002] Blu-ray Disc (Blu-ray Disc) is the latest generation of optical disc format. It is used to store high-quality audio and video and high-capacity data storage under the condition that human beings have increasingly strict requirements on the quality of multimedia. The emergence of Blu-ray discs can easily satisfy the high-definition videos that occupy a huge space. The capacity of a single-layer Blu-ray disc is 25GB or 27GB, which is enough to burn a high-resolution video of up to 4 hours, and the double-layer Blu-ray disc can reach 46GB. Or 54GB, enough to burn a high-resolution video up to 8 hours. The four-layer and eight-layer Blu-ray discs have reached a capacity of 100GB or 200GB, which can support longer high-definition movies. Due to its incomparable advantages o...

AI Technical Summary

Problems solved by technology

However, in the actual production process, due to errors in processing and assembly and the shrinkage and deformation of the disc 5' itself

will now appear as figure 2 The two ends of the upper template 1' shown are not parallel, which leads to the inclination of the upper template 1' and the lower template 2', which cannot be completely parallel to each other.

Therefore, the state-of-the-art disc stamping process cannot meet the micron-level parallelism requirements required by the stamping process for the production of dual-layer Blu-ray discs.

Images