Multi-focus child glasses processing device

Abstract

The invention discloses a multi-focus child glasses processing device. The processing device comprises a machine body; a mounting cover is fixedly connected to the top of the machine body; an openingis formed in the front side of the mounting cover; a deflection motor is mounted on the inner side of the mounting cover; a deflection frame is fixedly connected to the output end of the deflection motor; and power boxes are fixedly connected to the two sides of the top of the deflection frame. According to the processing device, the inner side of a lens is obliquely attached to an attaching plate, when the lens is vertical, the approximately-vertical attaching plate can make contact with the part of the gradual change area, a rubber pad is prone to deformation and has the best supporting effect for the lens, it is guaranteed that the clamping strength difference of all positions is not too large, when an abutting disc is disengaged from the lens after polishing is completed, a torsion spring drives the attaching plate to rotate, finally, the attaching plate rotates from an approximately-vertical state to an inclined state, and under the action of the rubber pad on the surface of the attaching plate, the polished lens is finally kept stable and not prone to sliding-off, and the falling probability of the lens is reduced.

Description

technical field [0001] The invention belongs to the technical field of glasses production, and in particular relates to a multi-focus children's glasses processing device. Background technique [0002] Progressive multifocal lenses refer to lenses with continuous and uninterrupted gradual changes in luminosity from far to near. The main feature of Progressive Additional Lens is that there is a transition zone where the refractive power continuously changes between the fixed far vision zone above the lens and the fixed near vision zone below the lens. This lens zone is called the gradient zone. In this area, the refractive power (degree) of the lens increases gradually through the gradual reduction of the radius of curvature of the lens, thereby providing the wearer with full and continuous clear vision from the far point to the near point. [0003] The existing glasses processing device needs to clamp the middle part of the lens when grinding the lens. Since the thickness o...

AI Technical Summary

Problems solved by technology

[0003] The existing glasses processing device needs to clamp the middle part of the lens when grinding the lens. Since the thickness of the normal lens gradually increases or decreases from the center to the edge, when clamping the lens, the design The clamping block is convex or concave to realize the clamping of the lens, but due to the characteristics of the multi-focal lens itself, the thickness of the middle gradient area will become thicker towards the bottom, which will cause the middle gradient of the multi-focal lens during clamping There is a large difference in the clamping strength of the thin area, the clamping strength of the thinner part is small, and the clamping strength of the thicker part is greater, which will cause the lens in the thicker part to be easily worn and affect the quality after processing. It is necessary to use specific auxiliary accessories to absorb the lens before holding, and then put the auxiliary accessories horizontally on the grinding position to prevent the lens from falling when the clamping part is opened after grinding. After removal, the auxiliary accessories need to be removed from the lens. Remove it, increase the process and affect the efficiency of grinding

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