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RGB three-primary-color laser color marking system

A three-primary-color, laser technology, applied in the field of laser color marking systems, can solve problems such as difficult process debugging and poor repeatability, and achieve the effects of easy use, easy color matching, and bright colors

Active Publication Date: 2018-03-02
ZHEJIANG UNIV OF TECH
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AI Technical Summary

Problems solved by technology

[0005] In order to overcome the problems that the existing laser marking systems can only mark in one color, even if they can mark in color for some metal materials, there are still problems such as difficult process debugging and poor repeatability. , RGB three primary colors laser color marking system with convenient process debugging and good repeatability

Method used

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Embodiment Construction

[0025] The present invention will be further described below in conjunction with the accompanying drawings.

[0026] refer to figure 1 , a laser color marking system of RGB three primary colors, including laser 1, beam expander 2, reflector 3, laser focusing mirror 4, powder feeding system 5, red powder feeding head 6, green powder feeding head 7, blue powder feeding Powder head 8 and workpiece 9.

[0027] The laser 1 is a semiconductor-pumped solid-state laser whose gain medium is Nd:YAG, with a wavelength of 1064nm and adjustable output power, or a fiber laser. The laser has the characteristics of low power pumping, high pump conversion efficiency, low resonant cavity loss, high frequency conversion efficiency, small size, and long life, and is suitable for all-weather industrial production and application.

[0028] The beam expander 2 adopts a Galilean triple beam expander. The beam expander is composed of two mirrors, including an input concave lens and an output convex ...

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Abstract

The invention provides an RGB three-primary-color laser color marking system. The system comprises a laser, a beam expanding mirror, a reflecting mirror, a laser focusing mirror, a powder feeding system, a red powder feeding head, a green powder feeding head and a blue powder feeding head. The output side of the laser is provided with the beam expanding mirror. The output side of the beam expanding mirror is provided with the reflecting mirror. The laser focusing mirror is arranged below the reflecting mirror. The output light of the laser and the optical axis of the laser focusing mirror aremutually perpendicular. The powder feeding system is connected with the red powder feeding head, the green powder feeding head and the blue powder feeding head. The red powder feeding head, the greenpowder feeding head, the blue powder feeding head and the output side of the laser focusing mirror are arranged in the processing position. The RGB three-primary-color laser color marking system is convenient in technological debugging and great in repeatability.

Description

technical field [0001] The invention belongs to the technical field of laser marking, and relates to a laser color marking system of RGB three primary colors. Background technique [0002] In recent years, with the rapid development of laser technology, the application level of laser technology has gradually improved, not only becoming an irreplaceable important part of the current industrial production process, but also excellent performance characteristics are gradually leading the current processing and manufacturing to a new steps. [0003] As an important application direction of laser application, laser marking plays a pivotal role in the current marking process. A focused laser beam with a certain intensity is used to irradiate the workpiece locally according to a given trajectory, so that the surface material is melted, vaporized or changed in color, thereby leaving a permanent mark. Not only can various characters, symbols and patterns be printed, but the size of ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B41J2/475
CPCB41J2/475Y02P10/25
Inventor 潘国兵何铁锋张立彬胥芳杨阳何旻
Owner ZHEJIANG UNIV OF TECH
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