公开(公告)号：US5811136A

公开(公告)日：1998-09-22

申请号：US755329

申请日：1996-11-21

申请人： Ryozo Morita ,  Tadashi Hasegawa ,  Yoshimitsu Tabata ,  Shigemi Kushida ,  Shinichi Nakamura

发明人： Ryozo Morita ,  Tadashi Hasegawa ,  Yoshimitsu Tabata ,  Shigemi Kushida ,  Shinichi Nakamura

IPC分类号： B29C45/17 ,  B29C45/50 ,  B29C45/53 ,  B29C45/54 ,  B29C45/60 ,  B29C45/62 ,  B29C45/74

CPC分类号： B29C45/1773 ,  B29C45/5008 ,  B29C45/532 ,  B29C45/74

摘要： A screw-in-plunger injection apparatus is provided which is advantageously used for molding either a large-size or a small-size product. The injection apparatus is capable of selectively carrying out a plunger-type injection operation and an inline-screw-type injection operation. In the plunger-type injection operation, an injection plunger 12 and a screw 10 are advanced in an injection cylinder 14, so that a melted resin fed to a storage space provided on the side of one axial end of the injection plunger 12 is injected. In the inline-screw-type injection operation, a surface of the axial end of the injection plunger 12 is held in abutment with the injection cylinder 14, so that the storage space is reduced to provide a reduced storage space to and from which the melted resin is fed by the rotation of the screw and is injected by the movement of the screw in an axial direction thereof.

摘要翻译： 提供了一种螺杆式注射装置，其有利地用于模制大尺寸或小尺寸产品。 注射装置能够选择性地执行柱塞式注射操作和在线螺杆型注射操作。 在柱塞型喷射操作中，注射柱塞12和螺杆10在注射缸14中前进，从而注入供给到设置在注射柱塞12的一个轴向端侧的储存空间的熔融树脂。 在直列螺杆式注射操作中，注射柱塞12的轴向端部的表面保持与注射缸14邻接，从而减小了储存空间，从而为熔化的 树脂通过螺杆的旋转进给，并且通过螺杆沿其轴向的运动而被注入。

公开(公告)号：US5804230A

公开(公告)日：1998-09-08

申请号：US784249

申请日：1997-01-15

申请人： Tadashi Hasegawa ,  Yoshimitsu Tabata ,  Shigemi Kushida ,  Shinichi Nakamura

发明人： Tadashi Hasegawa ,  Yoshimitsu Tabata ,  Shigemi Kushida ,  Shinichi Nakamura

IPC分类号： B29C45/53 ,  B29C45/54

CPC分类号： B29C45/532

摘要： An injection molding machine for thermoplastic resin consisting of an accumulator in which a plunger is slidably provided and an injection mold, the sprue of which connects with the nozzle of said accumulator, wherein said plunger consists of a cylinder and a screw rotatably arranged in said cylinder, the tip of said screw protrudes from the front end of said cylinder and the maximum diameter of said tip is larger than the diameter of said screw, and the ratio of the effective volume of said plunger to the effective volume of said accumulator is in the range between 1:4 to 1:10 is provided in the present invention. By using said injection molding machine a large size product can be molded at a low injection pressure.

摘要翻译： 一种用于热塑性树脂的注射成型机，其由可滑动地设置有柱塞的蓄能器和注射模具组成，该注射模具与所述蓄液器的喷嘴连接，其中所述柱塞由可旋转地布置在所述气缸中的气缸和螺杆组成 ，所述螺杆的尖端从所述气缸的前端突出，并且所述尖端的最大直径大于所述螺杆的直径，并且所述柱塞的有效体积与所述蓄能器的有效体积的比率在 在本发明中提供了1:4至1:10之间的范围。 通过使用所述注射成型机，可以在低注射压力下模制大尺寸产品。