公开(公告)号：US20080317897A1

公开(公告)日：2008-12-25

申请号：US12139829

申请日：2008-06-16

申请人： Hiroyasu ASAOKA ,  Wataru SHIRAISHI ,  Satoshi Takatsugi

发明人： Hiroyasu ASAOKA ,  Wataru SHIRAISHI ,  Satoshi Takatsugi

IPC分类号： B29C45/20

CPC分类号： B29C45/20 ,  B29C45/1777 ,  B29C45/74 ,  B29C2045/207

摘要： An injection molding machine nozzle capable of letting heat escape from a nozzle end portion and preventing the occurrence of cobwebbing with a simple structure. A heat conducting member is mounted on the nozzle end portion. When the end of the nozzle is contacted against a mold the heat conducting member also contacts the mold. The heat conducting member is composed of the material having heat conductivity equal to or greater than that of the nozzle. The heat of the nozzle end portion is conducted to the heat conducting member and released at the mold, thus preferentially cooling only melted resin of the nozzle end portion. Cobwebbing does not occur even when the mold is opened and the molded article is removed because the melted resin of the muzzle end portion has been cooled.

摘要翻译： 一种注射成型机喷嘴，其能够使热量从喷嘴端部逸出，并且以简单的结构防止蛛丝网的发生。 导热构件安装在喷嘴端部上。 当喷嘴的端部与模具接触时，导热部件也接触模具。 导热构件由具有等于或大于喷嘴的导热性的材料构成。 喷嘴端部的热量传导到导热部件并在模具处释放，因此优先仅冷却喷嘴端部的熔融树脂。 即使当模具打开并且由于枪口端部的熔融树脂已经被冷却而去除模制品时，也不会发生粘结。

公开(公告)号：US20090053349A1

公开(公告)日：2009-02-26

申请号：US12175148

申请日：2008-07-17

申请人： Hiroshi IMAMURA ,  Wataru SHIRAISHI ,  Satoshi TAKATSUGI

发明人： Hiroshi IMAMURA ,  Wataru SHIRAISHI ,  Satoshi TAKATSUGI

IPC分类号： B29C47/92

CPC分类号： B29C45/84 ,  B29C45/50 ,  B29C45/768 ,  B29C2945/7602 ,  B29C2945/7612 ,  B29C2945/7618 ,  B29C2945/76367 ,  B29C2945/76511 ,  B29C2945/76658 ,  B29C2945/76846 ,  B29C2945/76923 ,  B29C2945/76943

摘要： Screw rotation speeds and screw rotating torques are measured at predetermined time intervals during metering and substituted into a previously-assumed function to determine a maximum screw rotating torque at each screw rotation speed. An allowable upper limit of screw rotating torque is set for each screw rotation speed on the basis of the determined maximum screw rotating torque. If a screw rotating torque exceeding the allowable upper limit is detected during metering after the allowable upper limit is set, the screw rotation is stopped or changed.

摘要翻译： 在计量期间以预定的时间间隔测量螺杆转速和螺杆旋转扭矩，并将其替换为先前假定的功能，以确定每个螺杆转速下的最大螺杆转动扭矩。 基于所确定的最大螺杆旋转转矩，对每个螺杆转速设定螺杆转矩的允许上限。 如果在设定允许上限之后，在计量期间检测到超过容许上限的螺杆转矩，则螺杆旋转停止或改变。

公开(公告)号：US20120040038A1

公开(公告)日：2012-02-16

申请号：US13153481

申请日：2011-06-06

申请人： Hiroyasu ASAOKA ,  Junpei MARUYAMA ,  Wataru SHIRAISHI ,  Toshio ISHIKURO ,  Akira OOMORI

发明人： Hiroyasu ASAOKA ,  Junpei MARUYAMA ,  Wataru SHIRAISHI ,  Toshio ISHIKURO ,  Akira OOMORI

IPC分类号： B29C47/36

CPC分类号： B29C45/18 ,  B29C47/0009 ,  B29C47/369 ,  B29C47/6018 ,  B29C47/6075 ,  B29C2045/1875

摘要： A notched region in which the outer periphery of a screw flight is cut out is provided in a molding material feed screw. A wedge-shaped portion is formed by both a front wall surface of the screw flight and a wall surface of the boundary where the outer periphery of the screw flight is cut out. As a result of rotation of the molding material feed screw, since the wedge-shaped portion advances while pushing aside resin pellets located in the front thereof in two lateral directions of the front wall surface of the screw flight and the wall surface of the boundary where the outer diameter of the screw flight is cut out, entrapment of the resin pellets between the edge of a material supply port of a molding material supply device and the outer periphery of the screw flight is avoided as much as possible.

摘要翻译： 在模制材料进料螺杆中设置有切割螺旋形外周的缺口区域。 楔形部分由螺旋飞行的前壁表面和螺旋飞行的外周被切除的边界的壁表面形成。 由于成型材料进给螺杆的旋转，楔形部分在螺旋形飞行的前壁表面和边界的壁表面的两个横向方向上推开位于其前部的树脂颗粒的同时前进， 切除螺旋螺旋的外径，尽可能地避免树脂颗粒在成型材料供给装置的材料供给口的边缘与螺旋桨的外周之间的截留。

公开(公告)号：US20080305202A1

公开(公告)日：2008-12-11

申请号：US11937708

申请日：2007-11-09

申请人： Akira OOMORI ,  Junpei MARUYAMA ,  Satoshi TAKATSUGI ,  Wataru SHIRAISHI

发明人： Akira OOMORI ,  Junpei MARUYAMA ,  Satoshi TAKATSUGI ,  Wataru SHIRAISHI

IPC分类号： B29C45/76 ,  B29C45/50

CPC分类号： B29C45/76 ,  B29C45/52 ,  B29C2045/7606 ,  B29C2945/76013 ,  B29C2945/76096 ,  B29C2945/76187 ,  B29C2945/76381 ,  B29C2945/76652

摘要： An injection molding machine estimates a check valve wear amount, making it possible to predict a check valve use limit. At start of injection, the check valve is at a position advanced a stroke S0 with respect to a screw position (a position of a check seat that contacts the check valve and closes a resin flow channel). As the screw advances, the check valve retreats and closes when the screw moves a distance X0. When the check valve is worn ΔS (S1=S0+ΔS), it closes when the screw moves X1. Since the check valve stroke and the distance the screw moves until the check valve closes are proportional, S0/X0=S1/X1=a. Therefore, ΔS=aX1−S0, and the wear amount ΔS can be obtained by detecting the check valve closing position X1 and using this position X1 and the known stroke S0. The closing position is detected from the peak value of rotational force acting on the screw. Once the wear amount is obtained, the check valve use limit can be predicted from an allowable value of wear.

摘要翻译： 注射成型机估计止回阀磨损量，使得可以预测止回阀的使用限度。 在注射开始时，止回阀位于相对于螺钉位置（与止回阀接触的止回阀的位置并且封闭树脂流动通道）的行程S0上升的位置。 随着螺丝的进行，当螺丝移动一段距离X0时，止回阀就退回并关闭。 当止回阀磨损DeltaS（S1 = S0 + DeltaS）时，螺钉移动X1时关闭。 由于止回阀行程和螺杆移动直到止回阀关闭的距离成正比，所以S0 / X0 = S1 / X1 = a。 因此，DeltaS = aX1-S0，并且可以通过检测止回阀关闭位置X1并使用该位置X1和已知行程S0来获得磨损量DeltaS。 根据作用在螺杆上的旋转力的峰值来检测关闭位置。 一旦得到磨损量，可以从允许的磨损值预测止回阀的使用极限。