Apparatus for cold rolling copper ball

Abstract

A cold rolling machine for manufacturing copper ball is composed of machine frame, upper toothed guide disc, lower toothed guide disc (or lower guide plate), and left and right rolling rollers with spiral slot engaged with the teeth on guide discs for preventing the static friction between fixed guide plate and copper ball.

Description

technical field [0001] The invention relates to pressure processing equipment for nonferrous metals, in particular to a copper ball cold rolling device. Background technique [0002] Anode copper ball products are a new type of copper-phosphorus alloy material developed in recent years. They are mainly used as anode materials for circuit connection of printed circuit boards and electroplating on the surface of circuit boards. They are one of the basic materials for electronic information manufacturing. The copper ball cold rolling device is a new type of forming cold rolling equipment that has been put into use in China in recent years. This device is improved on the basis of the original steel ball hot rolling equipment. During the production of cold rolled copper balls, the original steel ball hot rolling equipment adopts a fixed plate type guide plate structure for the cold rolling transmission of copper balls. The plate guide plate is mainly comp...

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Problems solved by technology

This device is improved on the basis of the original steel ball hot rolling equipment. During the production of cold rolled copper balls, the original steel ball hot rolling equipment adopts a fixed plate type guide plate structure for the cold rolling transmission of copper balls. The plate guide plate is mainly composed of two flat guide plates whose upper and lower end surfaces are relatively parallel. Rollers are arranged on both sides of the flat guide plate. Touch the surface of the flat guide plate and convey it out along the length direction of the flat guide plate. This kind of fixed guide plate needs to ensure a high degree of parallelism, and the distance between the guide plate and the roll is relatively strict, so the equipment adjustment requirements are high, and the workload is large. And maintenance takes too long (sometimes the time taken is almost close to the normal production running time); at the same time, due to the narrow width of the guide plate (generally 2-6mm), when the copper billet rod is slightly bent or the diameter of the rod changes, There will be scraping on the surface of the copper ball product, or the "stuck" of the guide plate will cause the rolling mill to be boring, which will lead to the waste of the previous complicated adjustment work, and all the adjustment work must be repeated, and the production stability is relatively low. Difference

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