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公开(公告)号：US06666259B2
公开(公告)日：2003-12-23
申请号：US10216270
申请日：2002-08-12
IPC分类号： B22D1732
CPC分类号： B22D17/2038 , B22D17/2272 , B22D17/32
摘要： In a method for manufacturing a mold of a metal hot-runner injection molding machine, a temperature gradient of metal disposed in a nozzle between a heating device of the nozzle and a tip of the nozzle is measured. Then, an area in the nozzle is selected based on the measurement of the temperature gradient such that the metal in the nozzle upon a mold opening has a temperature at which a solidified condition of the metal can be stably maintained, where the temperature is close to a melting temperature of the metal. A gate cut portion is determined in the area.
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公开(公告)号：US4726751A
公开(公告)日：1988-02-23
申请号：US817855
申请日：1985-12-30
申请人： Itsuo Shibata , Tetsuo Uchida
发明人： Itsuo Shibata , Tetsuo Uchida
CPC分类号： B29C45/2737 , B29C45/78 , B29C2045/2748 , B29C33/06
摘要： In a hot-runner plastic injection system, part of a resin passage connecting the nozzle of an injection molding machine and cavities of a mold adjacent to each of the cavities is formed of a tubular member of material which can be heated by high frequency induction heating. High frequency induction heating windings are wound around the tubular members and are connected to a high frequency power source in series with each other. There is provided a temperature controller for controlling the temperature of the tubular members by controlling the power to be supplied to the heating windings.
摘要翻译： PCT No.PCT / JP85 / 00091 Sec。 371日期1985年12月30日第 102（e）1985年12月30日日期PCT提交1985年2月27日PCT公布。 公开号WO85 / 03904 日期：1985年9月12日。在热流道注塑系统中，连接注射成型机的喷嘴的树脂通道的一部分和与每个空腔相邻的模具的腔体由可以 被高频感应加热加热。 高频感应加热绕组缠绕在管状构件上并且彼此串联连接到高频电源。 提供了一种温度控制器，用于通过控制供应给加热绕组的功率来控制管状构件的温度。
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公开(公告)号：US06410895B1
公开(公告)日：2002-06-25
申请号：US09887099
申请日：2001-06-25
IPC分类号： H05B610
摘要： In an induction heating coil unit for a manifold in a hot runner mold, it is possible to uniformly heat a material over the entire length of a runner. Also, a coil is easily attached to and detached from the manifold. The hot runner mold includes a fixed mold and a movable mold, and a space is provided along a side surface of the manifold on which clamping force applied by the fixed mold and the movable mold does not act. A coil is wound to the side surface along an axial line of a runner of the manifold within the space such that the manifold is induction-heated from the side surface.
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公开(公告)号：US06310333B2
公开(公告)日：2001-10-30
申请号：US09729205
申请日：2000-12-05
IPC分类号： H05B636
CPC分类号： B29C45/2738 , B29C33/06
摘要： In an induction heating method for a manifold in a hot runner mold, it is possible to uniformly heat a material over the entire length of a runner. Also, a coil is easily attached to and detached from the manifold. The hot runner mold includes a fixed mold and a movable mold, and a space is provided along a side surface of the manifold on which clamping force applied by the fixed mold and the movable mold does not act. A coil is wound to the side surface along an axial line of a runner of the manifold within the space such that the manifold is induction-heated from the side surface.
摘要翻译： 在热流道模具中的歧管的感应加热方法中，可以在流道的整个长度上均匀地加热材料。 此外，线圈容易地附接到歧管和从歧管分离。 热流道模具包括固定模具和可移动模具，并且沿着歧管的侧表面设置有由固定模具和可移动模具施加的夹持力不起作用的空间。 线圈沿着空间内的歧管的流道的轴线缠绕到侧表面，使得歧管从侧表面被感应加热。
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公开(公告)号：US06234783B1
公开(公告)日：2001-05-22
申请号：US09285680
申请日：1999-04-05
申请人： Itsuo Shibata , Shigeo Wada , Hitoshi Toki , Hiroyuki Iida
发明人： Itsuo Shibata , Shigeo Wada , Hitoshi Toki , Hiroyuki Iida
IPC分类号： B29C4523
CPC分类号： B29C45/2737 , B29C33/06 , B29C45/27 , B29C45/2806 , B29C2045/272 , B29C2045/2858
摘要： An improved injection molding nozzle shows a high hardness and is chemically stable so that the inner surface thereof is not corroded nor the gas or the fluid forced to penetrate into the gap between the injection molding nozzle and the valve pin seize the valve pin regardless of the temperature and the pressure of the material to be injected. Additionally, the valve pin is not pliable and does not give rise to a collapse on the part of the valve pin. The injection molding nozzle to be used for resin and molten metal is characterized in that it is made of a ceramic material and at least part of the outer periphery is covered with metal.
摘要翻译： 改进的注射成型喷嘴显示出高硬度并且化学稳定，使得其内表面不被腐蚀，也不管被强制渗透到注射成型喷嘴和阀销之间的间隙中的气体或流体是否抓住阀销而不管 温度和待注射材料的压力。 此外，阀销不是柔韧的，并且不会在阀销的一部分上引起塌陷。 用于树脂和熔融金属的注射成型喷嘴的特征在于它由陶瓷材料制成，外周的至少一部分被金属覆盖。
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6.发明授权公开(公告)号：US06533021B1
公开(公告)日：2003-03-18
申请号：US09662028
申请日：2000-09-14
IPC分类号： B22D1702
CPC分类号： B22D17/2038 , B22D17/2272 , B22D17/32
摘要： A mold for a metal hot-runner injection molding machine includes a movable mold plate, a fixed mold plate having a nozzle for injecting molten metal into said cavity, and a heating device disposed outside the nozzle for heating metal. A gate cut portion is situated in the nozzle between the heating device and the tip. A temperature measurement device is arranged adjacent to the gate cut portion for measuring the temperature of the metal in the gate cut portion. A heating control device is connected to the heating device for controlling a temperature of the nozzle on a basis of the temperature measurement device. A heat insulation device is arranged on the nozzle to cover at least an area where the gate cut portion is formed. By controlling the temperature of the nozzle, metal injection molding without runner can be made.
摘要翻译： 一种用于金属热流道注射成型机的模具包括可移动模板，具有用于将熔融金属注入所述空腔中的喷嘴的固定模板和设置在喷嘴外部用于加热金属的加热装置。 浇口切割部分位于加热装置和尖端之间的喷嘴中。 温度测量装置设置在栅极切割部分附近，用于测量栅极切割部分中的金属的温度。 加热控制装置连接到加热装置，用于基于温度测量装置控制喷嘴的温度。 在喷嘴上布置有绝热装置，以至少覆盖形成有切口部的区域。 通过控制喷嘴的温度，可以制造不带流道的金属注射成型。
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