B - Operations – Transporting – 21 – J
Patent
B - Operations, Transporting
21
J
B21J 5/08 (2006.01) B21H 1/04 (2006.01) B21J 9/02 (2006.01) B21K 1/28 (2006.01) B21H 1/10 (2006.01)
Patent
CA 2135340
A rotary forging apparatus has a first rotary ram a second rotary ram facing together in a vertical direction and a shaping roller equipped beside the rams. The apparatus forges a product from a material work by sandwiching the work (10) between the first ram and the second ram pressing the work by the rams, thinning the work into the disc part of a product, pressing the excluded material out of the rams by the shaping roller to the sides of the rams and shaping the rim part. When the apparatus forges a wheel having a V-grooved or U-grooved rim part scars or voids are often generated on the rim part, since the roller does not move in the vertical direction in prior apparatuses. This invention provides the shaping roller with a supporting device, a vertical transference device and a horizontal transference device. The roller is moved also in the vertical direction, accompanying the thinning of the work. Vertical movement enables the roller to divide the extruded material in a suitable ratio into two parts. The rim part is immune from scars or voids because of the vertical transference of the roller accompanying the thinning of the work.
Marcus & Associates
Rays Engineering Co. Ltd.
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