公开(公告)号：US4518556A

公开(公告)日：1985-05-21

申请号：US254051

申请日：1981-04-14

申请人： Masahiko Yamamoto ,  Yoshinori Nishino ,  Akio Komura ,  Tomio Ebisu

发明人： Masahiko Yamamoto ,  Yoshinori Nishino ,  Akio Komura ,  Tomio Ebisu

IPC分类号： B29C33/50 ,  B29C43/12 ,  B29C5/04

CPC分类号： B29C33/50 ,  B29C43/12 ,  B29L2023/004

摘要： A method and apparatus for manufacturing bent pipes of a composite material composed of resin and filling materials such as reinforcing materials and aggregates by employing a cylindrical molding tool which is deformable between straight-axis form and bent-axis form. Materials are supplied into the molding tool held in horizontally straight condition while the tool is rotated about a horizontal axis, and are molded into a pipe by centrifugal molding. Rotation of the tool is stopped when the pipe molded therein is in uncured state, then the tool is subjected to bending. The resulting bent pipe is removed after it is cured. Before the tool is bent, a bag made of a flexible sheet material is inserted into the pipe and inflated to straighten out the inner periphery of the pipe so as to protect the pipe from any possibility of deformation during bending operation. The molding tool is preferably made of such resilient material as rubber, is incased in a peripherally divisible frame or bellows-type flexible frame which, in turn, is suitably incased in a rotary frame. More preferably, the molding tool has a hollow space provided between its inner and outer walls; by filling liquid in the hollow space it is possible to achieve fine roundness in pipe molding irrespective of dimensional errors with the molding tool or frame.

摘要翻译： 一种用于制造由树脂和填充材料如增强材料和骨料组成的复合材料的弯曲管的方法和装置，该方法和装置采用可在直轴形和弯轴形之间变形的圆柱形模具。 当工具围绕水平轴旋转时，将材料供给到水平直线状态的模具中，并通过离心模塑成型为管。 当模制在其中的管子处于未固化状态时，工具的旋转停止，然后该工具受到弯曲。 所得到的弯管在固化后被去除。 在工具弯曲之前，将由柔性片材制成的袋子插入管中并充气以使管道的内周伸直，以便在弯曲操作期间保护管道不发生变形的可能性。 模制工具优选地由诸如橡胶的弹性材料制成，被包围在可外围可分割的框架或波纹管型柔性框架中，该框架或波纹管型柔性框架进而适当地在旋转框架中被覆盖。 更优选地，模制工具具有设置在其内壁和外壁之间的中空空间; 通过在中空空间中填充液体，可以实现管模中的细圆度，而与成型工具或框架的尺寸误差无关。

公开(公告)号：US4483670A

公开(公告)日：1984-11-20

申请号：US422560

申请日：1982-09-24

申请人： Masahiko Yamamoto ,  Yoshinori Nishino ,  Akio Komura ,  Tomio Ebisu

发明人： Masahiko Yamamoto ,  Yoshinori Nishino ,  Akio Komura ,  Tomio Ebisu

IPC分类号： B29C33/50 ,  B29C43/12 ,  B29C5/04

CPC分类号： B29C33/50 ,  B29C43/12 ,  B29L2023/004

摘要： A method and apparatus for manufacturing bent pipes of a composite material composed of resin and filling materials such as reinforcing materials and aggregates by employing a cylindrical molding tool which is deformable between straight-axis form and bent-axis form. Materials are supplied into the molding tool held in horizontally straight condition while the tool is rotated about a horizontal axis, and are molded into a pipe by centrifugal molding. Rotation of the tool is stopped when the pipe molded therein is in uncured state, then the tool is subjected to bending. The resulting bent pipe is removed after it is cured. Before the tool is bent, a bag made of a flexible sheet material is inserted into the pipe and inflated to straighten out the inner periphery of the pipe so as to protect the pipe from any possibility of deformation during bending operation. The molding tool is preferably made of such resilient material as rubber, is incased in a peripherally divisible frame or bellows-type flexible frame which, in turn, is suitably incased in a rotary frame. More preferably, the molding tool has a hollow space provided between its inner and outer walls; by filling liquid in the hollow space it is possible to achieve fine roundness in pipe molding irrespective of dimensional errors with the molding tool or frame.

摘要翻译： 一种用于制造由树脂和填充材料如增强材料和骨料组成的复合材料的弯曲管的方法和装置，该方法和装置采用可在直轴形和弯轴形之间变形的圆柱形模具。 当工具围绕水平轴旋转时，将材料供给到水平直线状态的模具中，并通过离心模塑成型为管。 当模制在其中的管子处于未固化状态时，工具的旋转停止，然后该工具受到弯曲。 所得到的弯管在固化后被去除。 在工具弯曲之前，将由柔性片材制成的袋子插入管中并充气以使管道的内周伸直，以便在弯曲操作期间保护管道不发生变形的可能性。 模制工具优选地由诸如橡胶的弹性材料制成，被包围在可外围可分割的框架或波纹管型柔性框架中，该框架或波纹管型柔性框架进而适当地在旋转框架中被覆盖。 更优选地，模制工具具有设置在其内壁和外壁之间的中空空间; 通过在中空空间中填充液体，可以实现管模中的细圆度，而与成型工具或框架的尺寸误差无关。

公开(公告)号：US4358264A

公开(公告)日：1982-11-09

申请号：US245034

申请日：1981-03-18

申请人： Masahiko Yamamoto ,  Yoshinori Nishino ,  Masao Wada ,  Tomio Ebisu

发明人： Masahiko Yamamoto ,  Yoshinori Nishino ,  Masao Wada ,  Tomio Ebisu

IPC分类号： B29C31/04 ,  B29C41/04 ,  B29C41/36 ,  B29C67/24 ,  B29C5/04 ,  B29D23/08

CPC分类号： B29C41/36 ,  B29C31/04 ,  B29C41/042 ,  B29C67/243 ,  B29C2791/001 ,  B29K2105/12

摘要： A centrifugal molding apparatus for manufacturing composite material pipes comprising a rotary mold and operating arm means extensible into and retractable from the rotary mold; the operating arm means having, in sequence from the front end thereof, a press roll portion for uniformalizing the interior of a pipe being molded, a first resin-liquid supply portion, a second resin-liquid supply portion, a chopped-strand supply portion, a third resin-liquid supply portion, a sand smoothing portion for smoothing sand supplied on to resin liquids, a sand supply portion, and a roving supply portion.According to the invention, the operating arm means have various functions, and by causing them to extend into and retract from the rotary mold one or more times it is possible to mold various kinds of composite material pipes efficiently.

摘要翻译： 一种用于制造复合材料管的离心模塑设备，包括可旋转模具延伸并可回收的旋转模具和操作臂装置; 操作臂装置从其前端依次具有用于使待模制管的内部均匀化的压辊部分，第一树脂液供应部分，第二树脂液供给部分，短切供应部分 第三树脂液体供应部分，用于平滑供应到树脂液体上的砂粒的砂光平滑部分，砂供给部分和粗纱供应部分。 根据本发明，操作臂装置具有各种功能，并且通过使它们从旋转模具延伸进入和退出一次或多次，可以有效地模制各种复合材料管道。