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Method and device for cutting out glass pieces

A technology for glass products and equipment, which is applied in glass manufacturing equipment, welding equipment, laser welding equipment, etc., and can solve the problems of increasing equipment and use costs, and complicating equipment

Inactive Publication Date: 2008-04-02
乔治·居维利耶
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0015] [13] The main defect of the method described in document WO98 / 56722 is that at least two different laser beams with different properties must be used: one is a continuous laser beam and the other is a pulsed laser beam, which makes the equipment for implementing the method complicated change, increase equipment and usage costs

Method used

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  • Method and device for cutting out glass pieces
  • Method and device for cutting out glass pieces
  • Method and device for cutting out glass pieces

Examples

Experimental program
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Effect test

Embodiment 2

[0177] [172] Using an apparatus similar to that used in Example 1 but equipped with a 200 W laser source, the top cap of a crystallized glass article was removed.

[0178] [173] The side wall of this crystallized glass product is in the shape of a drum with a diameter of 80 mm and a thickness of 2 mm at the part where the top cap is removed, and this crystallized glass product is covered with a layer of lead oxide due to flame polishing at the end of forming reflective layer.

[0179] [174] This crystallized glass product is rotated at a rotational speed of 200 rpm, and undergoes a processing cycle as follows:

[0180] [175] - Scribe the article for 1.5 seconds using a pulsed laser beam of 5 kHz (50% cycle ratio) focused on the surface of the article (at the location of the intended cutting line);

[0181] [176] - moving the focusing lens (less than 0.1 second) so that the same laser beam has a diameter of 3 mm at the part where it touches the crystallized glass product;

[...

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PUM

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Abstract

Method of cutting a glass piece along a predetermined cutting line. One and the same beam of laser rays, focused by a focusing device, travels along the predetermined cutting line during at least one marking step and during at least one heating step, the focusing device being an adjustable focusing device which, during a marking step, focuses the beam of laser rays substantially on the predetermined cutting line and which, during a heating step, ensures that the focal point of the beam is appreciably distant from the predetermined cutting line.

Description

technical field [0001] [01] The present invention relates to a method and apparatus for cutting glass articles. [0002] [01] The method and apparatus of the present invention can be used in the flat glass manufacturing industry and the insulating glass product industry, but its application to insulating glass products will be described in more detail. Background technique [0003] [01] Hollow glass products such as water cups, glass bottles, etc. generally include a process called "removing the top cap". [0004] [02] Top hat removal is the process of separating the glass material that does not constitute the finished glass article itself but that has been formed as a result of thermoforming from the portion of the glass material that constitutes the finished glass article itself; The portion of glass material used to make up a glass article during the pressing or blowing process, which is carried out while the glass is in a paste, so as to give it a shape corresponding to...

Claims

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Application Information

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IPC IPC(8): C03B33/095B23K26/00C03B33/09
CPCC03B33/0955C03B33/095
Inventor 乔治·居维利耶
Owner 乔治·居维利耶