| 摘要 |
PURPOSE:To permit articles to be worked to be fed into a grinding wheel continuously and in high speed without installing a pushing-in device by allowing the articles to be pushed into a conveyance guide rails in succession in the attracted state by an electromagnetic force, in feeding into a duplex-head grinder. CONSTITUTION:The articles 2 to be worked which is supplied from a feeding guide rails 1 is attracted in weak excitation by the electromagnet 9 placed in the supply part A. As an electromagnetic chuck 3 is in revolution, the articles 2 are attracted one by one in succession. The attracted articles 2 is transferred into the transportation part B, where the electromagnet 9 holds the article 2 in strong excitation. Then, the article 2 is transferred into the feeding-in part C, where the electromagnet 9 is switched into weak excitation or stop of excitation. The article 2 is abutted onto the inlet of a transportation guide rails 5, stripped- off from the attracted surface, and transferred to the transportation guide rials 5, and then supplied between grinding wheels 6. |
