Ball forming mechanism of ball rolling machine

Abstract

The ball forming mechanism of ball rolling machine for rolling metal rod, especially copper rod, into ball in the required size includes one frame, one pair of rotating drum seats in the lower part of the frame, one pair of rotating drums, one pair of ball forming rollers matching the rotating drums and with spindle set via two bearing seats on the frame. The ball forming process has high efficiency and no material loss, and the formed ball has high sphericity, smooth surface and high density.

Description

technical field [0001] The invention relates to a ball forming mechanism of a bar ball rolling machine, which is used for rolling metal bars, especially copper bars, into spherical bodies of required size. Background technique [0002] Copper balls processed by electrolytic copper are widely used in electronics, light industry and other industries, such as copper clad wires on printed circuit boards, etc. At present, for the production of copper balls, the copper material is first punched out by a punching machine, and then forged by a cold forging machine. In this way, there is often an obvious rib in the middle of the processed sphere, that is to say, there is a rib in the middle of the copper ball. , which affects the use effect of barrel plating on the circuit board by barrel plating, and because it is forged and formed, the compactness is poor, which affects the electrical conductivity. In foreign countries, such as the United States, copper balls are processed by punc...

AI Technical Summary

Problems solved by technology

At present, for the production of copper balls, the copper material is first punched out by a punching machine, and then forged by a cold forging machine. In this way, there is often an obvious rib in the middle of the processed sphere, that is to say, there is a rib in the middle of the copper ball. , affect the use effect of barrel plating on the circuit board by barrel plating, and because it is forged, the compactness is poor, which has an impact on the electrical conductivity

In foreign countries, such as the United States, copper balls are processed by punching first and then ground into shape by a grinder. Although the roundness of the copper balls and no ribs can be guaranteed, the processing time is very long and the material loss is large.

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