Guiding structure for manufacturing movable mirror surface of optical disk

Abstract

The invention discloses a guiding structure for manufacturing a movable mirror surface of an optical disk. The guiding structure comprises a mould cavity ring and the movable mirror surface which is movably matched with the mould cavity ring, wherein the center of the surface of the mould cavity ring is provided with a through hole for conveniently embedding the movable mirror surface; a ball sleeve, which is movably matched with the mould cavity ring, is arranged between the mould cavity ring and the movable mirror surface and is fixedly mounted in the through hole. The through hole in the center of the mould cavity ring disclosed by the invention is internally provided with the ball sleeve which is movably matched with the mould cavity ring, and one part, which is embedded into the ball sleeve, of the movable mirror surface serves as a guide column; the ball sleeve and the movable mirror surface are matched to guide the movable mirror surface; the mould cavity ring is only provided with one ball sleeve, so that the condition that a movable mirror surface does not move smoothly as guide columns mutually take position can be effectively prevented.

Description

technical field [0001] The invention relates to a mold for making an optical disc, in particular to a guide structure for making a moving mirror of an optical disc. Background technique [0002] At present, the guiding structure used to make the moving mirror of the optical disc mainly adopts the following structure: refer to figure 1 with figure 2 , comprising a cavity ring 1' and a moving mirror 2' that is movably matched with it, and a through hole 10' is opened at the center of the surface of the cavity ring 1' to facilitate the movable fitting of the moving mirror 2' thereon, The outside of the through hole 10' is provided with three guide through holes 11' evenly opened at the outer peripheral edge of the cavity ring 1', and the guide sleeves 110' are fixed in the three guide through holes 11'. The guide sleeve 110' is fixed with a ball sleeve 3', and the moving mirror surface 2' is fixed with three guide posts 4' that cooperate with the above three ball sleeves 3' ...

AI Technical Summary

Problems solved by technology

[0002] At present, the guiding structure used to make the moving mirror of the optical disc mainly adopts the following structure: refer to figure 1 and figure 2 , comprising a cavity ring 1' and a moving mirror 2' that is movably matched with it, and a through hole 10' is opened at the center of the surface of the cavity ring 1' to facilitate the movable fitting of the moving mirror 2' thereon, The outside of the through hole 10' is provided with three guide through holes 11' evenly opened at the outer peripheral edge of the cavity ring 1', and the guide sleeves 110' are fixed in the three guide through holes 11'. The guide sleeve 110' is fixed with a ball sleeve 3', and the moving mirror surface 2' is fixed with three guide posts 4' that cooperate with the above three ball sleeves 3' to play a guiding role. The moving mirror surface 2' And the cavity ring 1' adopts the above-mentioned structure, although it can also play a guiding role for the moving mirror surface 2', because the parts will inevitably have processing errors in the production process, so when the above-mentioned three guide posts 4' and three The timing between the two ball sets 3' cannot be just right, and the three guide pillars 4' will meet and compete for positions, resulting in the movement of the moving mirror 2' not smooth, or even in normal use, affecting the normal production of optical discs

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