Multi-focus laser laminated glass separating method and device

Abstract

The invention discloses a multi-focus laser laminated glass separating method and device. According to the method, a laser beam with transmissivity on laminated glass is adopted; by means of a multi-focus lens set, the laser beamproduces a plurality of focuses to enter the laminated glass, and each layer of glass and each glueing material layer of the laminated glass are provided with at least one laser focus; under the action of the laser focuses, the glass layers and the glueing material layers are separated, the glass layers and the glueing material layers of the laminated glass are cut and separated at the same time through multiple laser focuses moving along the separating direction, and the whole laminated glass is cut and separated at the same time. The device comprises a two-dimensional working platform, a laser, a reflector, an expanded beam collimation lens and the multi-focus lens set, wherein the laser, the reflector, the expanded beam collimation lens and the multi-focus lens set are sequentially located on the same light path. By means of the multi-focus laser laminated glass separating method and device, follow-up manual piece breaking is not needed, and the cutting speed is greatly improved; the multi-focus laser laminated glass separating method and device have the advantages of being simple in separation procedures, high in separation speed, good in separation quality, capable of achieving special-shaped separating and mechanization and the like and are especially suitable for cutting and separating the laminated glass for buildings and automobiles.

Description

technical field [0001] The invention belongs to the technical field of laser processing, and in particular relates to a method and a device for separating laminated glass by a multi-focus laser. The invention is especially suitable for cutting and separating laminated glass for buildings and automobiles. [0002] technical background [0003] Laminated glass is composed of two or more pieces of glass with one or more layers of air or vacuum isolation layer or organic polymer interlayer film between them. A composite glass product in which glass and interlayer are permanently bonded together. Because laminated glass has the characteristics of both the outer glass and the inner glued layer, laminated glass has many excellent material properties. For example, adding a bulletproof fiber structure to the glued layer will make bulletproof glass that can resist bullets or even shells; adding wires or pressure sensors and alarm devices to the glued layer can make laminated glass wit...

AI Technical Summary

Problems solved by technology

Dimensional errors are easy to occur during this process, which reduces the dimensional accuracy of the laminated glass, and this process is mostly done manually, resulting in high production costs and low production speed

[0006] 3. Cutting by traditional mechanical methods is prone to cutting defects such as chipping and microcracks on the cutting and separating surface of the glass substrate. The separation quality is poor, and secondary grinding or polishing is required, which increases the process and cost

[0007] 4. In terms of special-shaped glass cutting, especially special-shaped laminated glass for automobiles, traditional mechanical cutting methods are extremely difficult to achieve automatic cutting, and subsequent manual breaking is required, which increases the process flow and reduces production efficiency

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