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公开(公告)号：US3720971A
公开(公告)日：1973-03-20
申请号：US3720971D
申请日：1970-11-18
CPC分类号： B29D35/0063 , A43D8/006 , A43D8/04 , A43D8/12 , A43D8/28 , B29C43/12 , B29D35/0072 , B29D35/126
摘要： Methods and apparatus for making shaped upper components for a shoe, Whole upper components or upper part upper components can be made. Vacuum and pressure forming techniques for conforming initially flat material to a moulding surface are disclosed. The moulding surfaces may be of a shape whereby the preformed upper is convertible to the shape of the last merely by a bending operation. The mould shape can be arrived at by forming a sheet of resiliently bendable material such as unplasticized PVC to the last shape required to form a shell and, after removing the shell from the last, partially flattening it by spreading outwardly the opposite sides. Where a male mould is used the surface of the material which is to be the outside surface of the shoe can be in contact with the mould surface, and the preformed upper would be turned inside out after removal from the mold; where a female mould is used the surface of the material which is to be inside the shoe may be in contact with the moulding surface and again the preformed upper would be turned inside out after removal from the mould. The moulding surface may be embossed to transfer a pattern to the upper material. The material is held during the moulding operation. A device for partially cutting out the upper from the sheet of material from which it is formed may be provided, which device may also operate as a clamp for holding the material during the forming operation.
摘要翻译： 用于制造鞋的成形鞋面部件的方法和装置，可以制造整个上部部件或上部上部部件。 公开了用于使初始平坦材料与模制表面一致的真空和压力成形技术。 成形表面可以是这样的形状，即，预成型的上部仅通过弯曲操作可转换成最后的形状。 模具形状可以通过将诸如未塑化的PVC的弹性弯曲材料片形成到形成壳体所需的最后形状，并且在从最后的壳体中去除壳体之后，通过向外展开相对的侧面而将其部分地变平，来达到。 在使用阳模的情况下，作为鞋的外表面的材料的表面可以与模具表面接触，并且预先形成的鞋面在从模具中取出后将被转入内部; 在使用阴模的情况下，将在鞋内部的材料的表面可以与模制表面接触，并且在从模具中取出之后再次将预制的上部转过内部。 模制表面可以被压花以将图案转移到上部材料。 材料在成型操作期间保持。 可以设置用于从其从其形成的材料片部分地切出上部的装置，该装置还可以在成形操作期间用作夹持材料。
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