发明名称 DRAWING APPARATUS AND DRAWING METHOD
摘要 The present invention aims at providing a drawing apparatus capable of taking out a material, the inner surface of which has been formed into a concavo-convex shape with drawing, from a mold with excellent release performance, even in the case where the concavo-convex part formed in the inner surface of the product is of a shape causing it to get caught in the direction of pulling out of the product against the mold and, in a drawing apparatus comprising a mold 10 disposed at the tip of a spindle 2 and a squeezing roller R for forming a material W into a shape along the surface shape of the mold 10, the mold 10 is realized in a split structure having a concavo-convex surface shape and contractible in diameter after the forming of the material W.
申请公布号 US2009194900(A1) 申请公布日期 2009.08.06
申请号 US20080345989 申请日期 2008.12.30
申请人 MURATA SHIGEOI 发明人 MURATA SHIGEOI
分类号 B29C43/22 主分类号 B29C43/22
代理机构 代理人
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