A New Production Process of Resin Code Disc

Abstract

The invention relates to a novel resin code disc production process. Different from a traditional resin code disc production method, the novel resin code disc production process uses a laser direct writing process and an electroplating process. The novel resin code disc production process comprises the steps of firstly manufacturing a metal nickel master plate with the surface being provided with a three-dimensional code disc pattern, then directly copying the pattern at the surface of the master plate to a resin substrate by using a process of injection molding, and then coating a nanometer-level protection layer at the surface of the resin substrate by using a process of ultraviolet adhesive spin coating, thereby completing production for the resin code disc. The technological process provided by the invention is shown in attached figures of the abstract of description. Compared with a traditional technological method, the technological process greatly simplifies procedures, and solves inherent defects of the traditional resin code disc production process, such as problems of easy falling of metal lines, complex process, low qualified rate, great pollution to the environment and the like; and meanwhile, the precision and the resolution of the resin code disc is improved obviously, and the production cost is reduced.

Description

technical field [0001] The invention belongs to the field of photoelectric encoders among photoelectric sensors, and relates to a production process of a novel resin code disc. Background technique [0002] A photoelectric encoder is a sensor that uses the principle of photoelectric conversion to measure the rotation angle or rotation speed, and the code disc is one of the core components of the photoelectric encoder. A sample graphic of the code wheel surface is attached figure 1 As shown, the black stripes correspond to the opaque parts, while the white stripes correspond to the light-transmitting parts. [0003] The materials for making the code disc include glass, metal, film and optical resin. The manufacturing process of glass code discs, metal code discs and film code discs is quite mature, but these materials have some inherent shortcomings and cannot meet the requirements of some special application environments. Resin code discs have the characteristics of shock...

AI Technical Summary

Problems solved by technology

[0005] 1) The metal layer is easy to fall off when the ambient temperature changes drastically;

[0006] 2) The metal layer is easy to corrode in harsh environments

[0007] 3) The resin material has to be soaked in the developer during the production process, which will have a bad influence on the light transmittance of the resin material

[0008] 4) Due to the need for developing technology, more chemicals are used, which pollutes the environment, and also leads to poor processing accuracy and product stability

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