公开(公告)号：US5191929A

公开(公告)日：1993-03-09

申请号：US449913

申请日：1990-01-05

申请人： Shoko Kubota ,  Sadayoshi Yamada

发明人： Shoko Kubota ,  Sadayoshi Yamada

IPC分类号： B22D17/30 ,  B22D39/00

CPC分类号： B22D17/30 ,  B22D39/003

摘要： A molten metal supplying apparatus has an electromagnetic pump for supplying molten metal under electromagnetic forces through a molten metal feed tube to a die-casting machine. An adapter is provided for maintaining molten metal therein at the same surface level as that of molten metal which is kept in a molten metal holding furnace at a prescribed temperature. The molten metal holding furnace is movable toward and away from a molten metal receiving member of the die-casing machine. An oxidized layer is prevented from being formed in the molten metal as it is fed through the feed tube, and the feed tube can easily be inspected and serviced. An orifice member is disposed in the feed tube for supplying even a small amount of molten metal accurately to the molten metal receiving member.

公开(公告)号：US07104308B2

公开(公告)日：2006-09-12

申请号：US10846915

申请日：2004-05-17

申请人： Shoko Kubota

发明人： Shoko Kubota

IPC分类号： B22D17/00

CPC分类号： B22D17/145

摘要： A vacuum casting die simpler in configuration and improved in seal performance in vacuum casting using a slide core, provided with a pair of main dies, a sealing member for seamlessly and continuously sealing mating faces around the closed space formed between the main dies, and a slide core housed in the sealed space formed between the main dies sealed by the sealing member.

摘要翻译： 使用具有一对主模具的滑动芯的真空铸造中的真空铸造模具更简单并且在真空铸造中提高了密封性能，用于将形成在主模具之间的封闭空间周围的配合面无缝且连续地密封的密封构件和 滑动芯容纳在由密封构件密封的主模具之间形成的密封空间中。

公开(公告)号：US06953079B2

公开(公告)日：2005-10-11

申请号：US10661783

申请日：2003-09-15

申请人： Kazuhiro Suzuki ,  Shoko Kubota ,  Kazumi Tsuruda ,  Isao Kuboki ,  Toshiaki Toyoshima

发明人： Kazuhiro Suzuki ,  Shoko Kubota ,  Kazumi Tsuruda ,  Isao Kuboki ,  Toshiaki Toyoshima

IPC分类号： B22D17/20 ,  B22D17/22 ,  B22D11/12

CPC分类号： B22D17/2007 ,  B22D17/2236

摘要： A die casting machine injecting and filling a molten metal into a cavity formed between a pair of dies so as to cast a product, comprising an ejecting pin for ejecting a casting by its front and sticking out inside the cavity and a powder feeder for feeding a powder release agent for promoting release of the casting from the dies, the ejecting pin including a release agent feed path for guiding powder release agent fed from the powder feeder to a front end of the ejecting pin and feeding it to the cavity.

摘要翻译： 一种压铸机，其将熔融金属注入并形成在一对模具之间形成的空腔中以铸造产品，该产品包括用于从其前部喷出铸件并在该模腔内伸出的排出销和用于供给 用于促进模具从模具中释放的粉末脱模剂，弹射销包括用于将从粉末进料器供给的粉末脱模剂引导到排出销的前端并将其送入空腔的脱模剂进料路径。

公开(公告)号：US4848603A

公开(公告)日：1989-07-18

申请号：US198974

申请日：1988-05-26

申请人： Shoko Kubota ,  Sadayoshi Yamada

发明人： Shoko Kubota ,  Sadayoshi Yamada

IPC分类号： B22D39/00 ,  B22D39/06

CPC分类号： B22D39/06 ,  B22D39/00

摘要： A pressurized holding furnace having an open feeding chamber is provided with a pressure chamber having a pressure device for pressurizing the pressure chamber and a discharge device for releasing the pressure. The pressure chamber is provided at a lower position than the lowest level of the molten metal in the pressure chamber with an inlet port of a feeding pipe and at a higher position than the highest level of the molten metal in the pressure chamber with an electromagnetic pump.

摘要翻译： 具有开放进料室的加压保持炉设置有具有用于对压力室进行加压的压力装置的压力室和用于释放压力的排出装置。 压力室设置在比压力室中的熔融金属的最低水平低的位置处，其具有进料管的入口并且处于比压力室中的熔融金属的最高水平高的位置处，其具有电磁泵 。

公开(公告)号：US4793596A

公开(公告)日：1988-12-27

申请号：US119154

申请日：1987-11-10

申请人： Shoko Kubota ,  Sadayoshi Yamada

发明人： Shoko Kubota ,  Sadayoshi Yamada

IPC分类号： B22D17/30 ,  B22D39/06 ,  C21B13/00

CPC分类号： B22D17/30 ,  B22D39/06

摘要： A method of rapidly discharging a molten metal from its supply system of a pressurized holding furnace having an open feeding chamber provided at one side of a pressure chamber with a suction pipe of a delivery pump, said pressure chamber having an inlet valve and an outlet valve for a pressure gas, in which the pressure chamber is pressurized to keep a constant level of the molten metal in the feeding chamber for maintaining a constant suction head of the delivery pump is disclosed, wherein the suction pipe is situated at a higher position than such a level of the molten metal in the feeding chamber that is lowered when a pressure in the pressure chamber is released while the supply system including the delivery pump is positioned upwardly above the suction pipe, and in that the outlet valve of the pressure chamber is opened when the molten metal is discharged from the supply system for allowing the molten metal to return into the pressure chamber, thereby rapidly lowering the metal level of the feeding chamber below the suction pipe for discharging the molten metal from the supply system into the holding furnace.

摘要翻译： 一种从其供给系统中快速排出熔融金属的方法，所述加压保持炉具有设置在压力室一侧的开放进料室和输送泵的吸入管，所述压力室具有入口阀和出口阀 对于压力气体，其中压力室被加压以保持供给室中的熔融金属的恒定水平以保持输送泵的恒定的吸头，其中吸入管位于比其更高的位置 当包括输送泵的供给系统位于吸入管上方时，当压力室中的压力被释放时，供给室中的熔融金属的水平降低，并且压力室的出口阀打开 当熔融金属从供给系统排出以允许熔融金属返回到压力室中时，从而迅速降低金属l 在吸入管下方的进料室的电平，用于将熔融金属从供给系统排出到保持炉中。

公开(公告)号：US07017649B2

公开(公告)日：2006-03-28

申请号：US10846921

申请日：2004-05-17

申请人： Shoko Kubota

发明人： Shoko Kubota

IPC分类号： B22D17/32

CPC分类号： B22D17/14 ,  B22D17/32

摘要： A die casting machine obtain to obtain a suitable reduced pressure and reliably prevent the entry of molten metal into a valve when reducing the pressure in a cavity and injecting and filling it with a molten metal for casting, provided with the valve for opening and closing an exhaust path, a position detector for detecting an open/closed state of the exhaust path by the valve, an injection apparatus, a position detector for detecting the position of the injection plunger, and a control apparatus for controlling the injection. The control apparatus outputs a control instruction for making it close the exhaust path to the valve when the detected position of the injection plunger reaches a valve closing position set before the speed switching position and stops the drive of the injection plunger when not detecting completion of closure of the exhaust path when the injection plunger reaches the speed switching position.

摘要翻译： 一种压铸机获得适当的减压并且可靠地防止熔融金属进入阀门时，减小空腔中的压力，并注入并填充浇铸熔融金属，设置有用于打开和关闭阀的阀 排气路径，用于通过阀检测排气路径的打开/关闭状态的位置检测器，注射装置，用于检测注射柱塞的位置的位置检测器和用于控制注射的控制装置。 当检测到的喷射柱塞的位置达到在速度切换位置之前设定的关闭位置时，控制装置输出使其关闭到阀的排气路径的控制指令，并且当未检测到完成关闭时停止喷射柱塞的驱动 当喷射柱塞达到速度切换位置时，

公开(公告)号：US4828460A

公开(公告)日：1989-05-09

申请号：US82130

申请日：1987-08-06

申请人： Hirozi Saito ,  Shoko Kubota ,  Noriyuki Motomura

发明人： Hirozi Saito ,  Shoko Kubota ,  Noriyuki Motomura

IPC分类号： B22D17/30 ,  B22D39/00 ,  H05B6/34

CPC分类号： B22D17/30 ,  B22D39/003 ,  H05B6/34

摘要： When molten metal within a molten metal tank is supplied to an injection sleeve of a casting machine through a molten-metal supply pipe by the operation of an electromagnetic pump, a sensor detects changes in height of the surface of molten metal within the tank as time passes, and a controller corrects the period during which the pump is driven on the basis of molten-metal surface detection signals from the sensor. The controller divides the difference in height of the surface of molten metal within the tank as between its highest level and its lowest level into a number n of regions, and drives the pump in such a controlled manner that the pump is connected to a three phase AC power source and is intermittently supplied with three-phase power having a constant voltage and a constant frequency so that the pump controls the molten-metal supply amount with its driven period serving as a molten-metal supply period. A molten-metal supply period for each supply operation is calculated from a predetermined equation using a molten-metal supply period corresponding to the highest level of the molten metal surface which is in turn determined from the results of casting tests. The degree of precision at which molten metal is supplied is further enhanced by an improved structure of the molten-metal supply pipe.

摘要翻译： 当熔融金属罐内的熔融金属通过电磁泵的操作通过熔融金属供给管道供给到铸造机的注射套筒时，传感器检测罐内熔融金属表面的高度变化，随着时间的推移 通过，并且控制器基于来自传感器的熔融金属表面检测信号来校正泵被驱动的时段。 控制器将罐内熔融金属表面的高度差在其最高水平和最低水平之间划分为数个n个区域，并以如此受控的方式驱动泵，使得泵连接到三相 交流电源，并且间歇地供给具有恒定电压和恒定频率的三相电力，使得泵以其作为熔融金属供给周期的驱动周期来控制熔融金属供给量。 使用与熔融金属表面的最高水平相对应的熔融金属供给周期，根据铸造试验的结果，根据规定的方程式，计算出各供给动作的熔融金属供给期间。 通过改善熔融金属供应管的结构，进一步提高了供应熔融金属的精度。