DOT PUNCHING DEVICE FOR IMPROVEMENT OF SURFACE ROUGHNESS AND PATTERN PROCESSING METHOD USING THE SAME AND THE PATTERN

摘要

The present invention provides a dot punching device for improving surface roughness, a pattern processing method using the same, and a valve plate for a compressor including the pattern. The dot punching device for improving surface roughness can form various patterns and minimize deformation of an object by forming a pattern comprising multiple dots on the surface of the object by punching a processing pin in a vertical direction while moving the processing pin in a horizontal direction. The dot punching device can minimize abrasion due to friction and can be easily maintained and replaced. According to the present invention, the dot punching device forms a fixed pattern (20) on the surface adjacent to a suction port (11) and a discharge port (11) of the valve plate (10) for a compressor. The dot punching device includes: a mounting jig (100) to which the valve plate (10) is fixed; a pressing pin (200) having a pressing unit (210) at the front end to press the valve plate (10); and a moving unit (300) installed in the upper part of the mounting jig (100) and having the pattern (20) on the valve plate by reciprocating the processing pin (200) in the vertical direction at a fixed speed while moving the processing pin (200) at the fixed speed.