发明公开
EP0004071A2 Method and apparatus for the continuous formation of biaxially oriented thermoplastic materials and forming articles therefrom by intermittent forming means interfaced therewith
失效
基本信息:
- 专利标题： Method and apparatus for the continuous formation of biaxially oriented thermoplastic materials and forming articles therefrom by intermittent forming means interfaced therewith
- 专利标题（中）：用于连续生产双轴取向的热塑性材料制成，并且用于通过它与该材料间歇地配合模具部件的手段从其成型制品的方法和装置。
- 申请号：EP79100680.2 申请日：1979-03-07
- 公开(公告)号：EP0004071A2 公开(公告)日：1979-09-19
- 发明人： Winstead, Thomas W.
- 申请人： MARYLAND CUP CORPORATION
- 申请人地址： 10100 Reisterstown Road Owings Mills Maryland 21117 US
- 专利权人： MARYLAND CUP CORPORATION
- 当前专利权人： MARYLAND CUP CORPORATION
- 当前专利权人地址： 10100 Reisterstown Road Owings Mills Maryland 21117 US
- 代理机构： Rupprecht, Klaus, Dipl.-Ing.
- 优先权： US886161 19780313
- 主分类号： B29C51/04
- IPC分类号： B29C51/04
摘要：
A method and apparatus for continuously extruding, biaxially orienting and intermittently forming molded products from a web of thermoplastic material and further continuously separating the products from the web selvage, stacking and handling the products and recycling the web selvage for further extrusion. The method and apparatus use intermittent molding devices into which configuration the biaxially oriented web is interfaced by a continuous-to- intermittent interfacing structure which preserves the dimensional and orientational integrity of the web and maintains thermal stability therein. An undulating peripheral surface on a dynamic storage or accumulator drum and associated transfer rollers cooperate with intermittently advanced feed belts in timed relationship with a reciprocating forming press to effectuate the interface and product forming portions of the process. In some of the preferred embodiments the inertia at the interface between the undulating peripheral surface of the accumulator drum and the biaxial orientation apparatus is reduced to an optimal minimum.
IPC结构图谱:
| B | 作业；运输 |
| --B29 | 塑料的加工；一般处于塑性状态物质的加工 |
| ----B29C | 塑料的成型或连接；塑性状态物质的一般成型；已成型产品的后处理，如修整 |
| ------B29C51/00 | 热成型，例如在相配的模型中或用深拉延成型板材；所用的设备 |
| --------B29C51/04 | .热成型和预拉伸结合的，如双轴拉伸 |