公开(公告)号：JP2003039496A

公开(公告)日：2003-02-13

申请号：JP2001227866

申请日：2001-07-27

Applicant: Sony Corp ,  ソニー株式会社

Inventor： YAMANAKA HIROAKI ,  MANJOMOKU NAOHISA ,  TORIMOTO MASASHI

IPC: B29C45/27

Abstract: PROBLEM TO BE SOLVED: To make an index of birefringence in the peripheral direction of a resin substrate uniform and thereby make the manufacture of the highly reliable resin substrate highly efficient, when a plurality of resin substrates are simultaneously molded using a plurality of cavities formed in one mold. SOLUTION: The mold 3 is closed by butting a cavity part 1 and a movable part 2 of a mold to each other and a first molding cavity 4 and a second molding cavity 5 are formed. A molten resin material is diverged into sprue spaces 6 and 7 through a nozzle 8 of a molding machine. Immediately before the first molding cavity 4 and the second molding cavity 5 are filled with the molten resin material, the molten resin material is transferred in a straight line over a specified distance 1 or longer, in positive terms, 135 mm or longer, through the sprue spaces 6 and 7 and nozzles 8b and 8c.

Abstract translation: 要解决的问题：为了使树脂基板的圆周方向上的双折射率均匀，从而使得高度可靠的树脂基板的制造高效，当多个树脂基板同时用多个形成的空腔成型时 一个模具。 解决方案：通过将模具的空腔部分1和可移动部件2彼此对接并形成第一模制腔4和第二模腔5来闭合模具3。 熔融树脂材料通过成型机的喷嘴8分散到浇道空间6和7中。 在第一成型腔4和第二成型腔5之前立即用熔融树脂材料填充的情况下，熔融树脂材料以指定的距离1或更长，以135mm或更长的正向移动，通过 浇口6和7以及喷嘴8b和8c。

公开(公告)号：JPH08118432A

公开(公告)日：1996-05-14

申请号：JP28399094

申请日：1994-10-25

Applicant: SONY CORP

Inventor： KISHI SHINSUKE ,  TORIMOTO MASASHI

IPC: B29C33/30 ,  B29C45/36

Abstract: PURPOSE: To provide an injection mold and its assembling method, with which assembling accuracy and assembling workability can be improved. CONSTITUTION: Under the condition that one mold is formed by fitting a bushing 9 in the recess 10 of a retainer plate 5, a bearing 20 is provided between the retainer plate 5 and the bushing 9 so as to retain the degree of concentricity between the retainer plate 5 and the bushing 9 by means of the accuracy of the bearing 20.