公开(公告)号：US20040080067A1

公开(公告)日：2004-04-29

申请号：US10653923

申请日：2003-09-04

Applicant: TOSHIBA MACHINE CO., LTD.

Inventor： Takashi Yamazaki ,  Haruyuki Matsubayashi ,  Takeshi Abe

IPC: B29C045/00

CPC classification number: B29C45/844 ,  B29C45/32 ,  B29C45/33 ,  B29C45/7653 ,  B29C45/768 ,  B29C2045/1792 ,  B29C2945/76006 ,  B29C2945/76013 ,  B29C2945/7602 ,  B29C2945/76083 ,  B29C2945/76163 ,  B29C2945/76173 ,  B29C2945/76224 ,  B29C2945/76227 ,  B29C2945/76257 ,  B29C2945/76307 ,  B29C2945/76391 ,  B29C2945/76498 ,  B29C2945/76505 ,  B29C2945/76785 ,  B29C2945/76913 ,  B29C2945/76943 ,  B29C2945/76973

Abstract: The present invention relates to a method of detecting a malfunction during a die clamping step in an injection molding machine. A reference pattern is taken which shows a relation between a die clamping force and a position of a movable platen when die clamping is normally carried out. One or more monitoring sections are set in advance with respect to that position on the basis of the reference pattern and an allowable limit value of a die clamping force in the respective monitoring sections is also set in advance in a form of a linear function of the position. The die clamping force is monitored in the respective monitoring section during a respective die clamping step and, when its value exceeds the allowable limit value, it is decided that a malfunction occurs and an alarm is issued.

Abstract translation: 本发明涉及一种在注射成型机中检测模具夹紧步骤期间的故障的方法。 示出了当正常进​​行模具夹紧时，模具夹紧力与可动压板的位置之间的关系的参考模式。 基于参考图案相对于该位置预先设置一个或多个监视部分，并且预先在各监视部分中的模具夹紧力的允许极限值以 位置。 在相应的模具夹紧步骤期间，在相应的监视部分中监视模具夹紧力，并且当其值超过允许极限值时，确定发生故障并发出报警。

公开(公告)号：US20040051194A1

公开(公告)日：2004-03-18

申请号：US10658370

申请日：2003-09-10

Applicant: TOSHIBA MACHINE CO., LTD.

Inventor： Takashi Yamazaki ,  Haruyuki Matsubayashi ,  Takeshi Abe

IPC: B29C045/76

CPC classification number: B29C45/7626 ,  B29C2045/764 ,  B29C2945/7602 ,  B29C2945/76083 ,  B29C2945/76244 ,  B29C2945/76247 ,  B29C2945/76943

Abstract: The force pushing the ejector pin when a molded product is ejected is obtained from the driving torque of the servomotor. A malfunction is detected in the ejection step as follows. First, a reference pattern is obtained in advance, when a molded product is normally removed. As the reference pattern, the relationship between torque of the servomotor and time from the initiation of ejecting the ejector pin or the position of an ejector pin is used. At least one monitoring zone is set based on the pattern and the upper and lower limits of torque of each of the monitoring zones are set. A torque value is monitored in each monitoring zone and when the torque value falls outside the upper and lower limits of any one of the monitoring zones, it is determined that a malfunction occurred and an alarm is raised.

Abstract translation: 当驱动模制产品被推出时推动推杆的力是从伺服电动机的驱动扭矩获得的。 在喷射步骤中检测到故障如下。 首先，当模制品通常被去除时，预先获得参考图案。 作为基准模式，使用伺服电动机的转矩与从推出销的弹出开始的时间的关系或推杆的位置的关系。 基于模式设置至少一个监控区域，并且设置每个监控区域的扭矩的上限和下限。 在每个监控区域中监视扭矩值，并且当扭矩值落在任何一个监控区域的上限和下限之内时，确定发生故障并发出报警。