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1.发明授权Apparatus for detecting defects at gas exhaust line in casting machine and method therefor 失效用于检测铸造机排气管线缺陷的装置及其方法
公开(公告)号：US5379826A
公开(公告)日：1995-01-10
申请号：US131386
申请日：1993-10-05
CPC分类号： B22D17/32 , B22D17/145
摘要： A gas venting system is connected to a downstream side of a gas vent valve through a gas exhaust line. An electromagnetic valve and a suction unit are connected to the gas exhaust line. A pressure switch is directly connected to the gas exhaust line to detect the pressure variation within the line. By the suction through the suction unit and the opening of the electromagnetic valve, the gas exhaust line is decompressed. If the line has a perforation, the pressure does not reach a predetermined pressure. If clogging occurs, the pressure reaches a predetermined pressure while the metal molds are open and the gas vent valve is open. Thus, accurate detection to the defects can be achieved regardless of the state of the metal molds and the internal volume of a vacuum tank.
摘要翻译： 排气系统通过排气管线连接到排气阀的下游侧。 电磁阀和抽吸单元连接到排气管。 压力开关直接连接到排气管线，以检测管线内的压力变化。 通过抽吸单元的抽吸和电磁阀的打开，排气管线被减压。 如果线具有穿孔，则压力未达到预定压力。 如果发生堵塞，则当金属模具打开并且排气阀打开时，压力达到预定压力。 因此，无论金属模具的状态和真空槽的内部容积如何，都可以实现对缺陷的准确检测。
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公开(公告)号：US5460218A
公开(公告)日：1995-10-24
申请号：US155330
申请日：1993-11-22
CPC分类号： B22D17/145
摘要： A method and apparatus capable of continuously discharging contaminated gas out of metal molds, the gas being generated prior to the casting step and including moisture. A gas vent valve is provided at a gas vent passage in communication with a mold cavity. A suction unit and a vacuum pump are selectively connected to the gas vent valve. After closure of the metal molds, the suction unit is connected to the gas vent valve to perform sucking interior of the mold cavity. By this suction, an external air is introduced into the metal molds through a pouring port of a shot sleeve. Thus, contaminated gas in the cavity is replaced with a clean air. During injection molding, the gas vent valve is connected to the vacuum pump for decompressing the mold cavity. Vapor explosion is avoidable since moisture content is removed from the mold cavity even if the molten metal is introduced into the cavity.
摘要翻译： 一种能够将污染气体从金属模具中连续排出的方法和装置，所述气体在铸造步骤之前产生并包括水分。 在与模腔连通的排气通道处设有排气阀。 抽吸单元和真空泵选择性地连接到排气阀。 在金属模具关闭之后，抽吸单元连接到排气阀以执行模腔的吸入内部。 通过该抽吸，外部空气通过喷射套筒的倾倒口引入金属模具中。 因此，空腔中被污染的气体被清洁的空气所取代。 在注射成型期间，排气阀连接到真空泵以对模腔进行减压。 蒸发爆炸是可以避免的，因为即使将熔融金属引入空腔中，也会从模腔中除去含水量。
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3.发明授权Automatic molten metal supplying device and method for supplying the molten metal 失效自动熔融金属供给装置及供给熔融金属的方法
公开(公告)号：US5250103A
公开(公告)日：1993-10-05
申请号：US842926
申请日：1992-02-27
申请人： Noriyoshi Yamauchi , Hitoshi Ishida
发明人： Noriyoshi Yamauchi , Hitoshi Ishida
IPC分类号： B22D39/02
CPC分类号： B22D39/026
摘要： An automatic molten metal supplying device and supplying method capable of promoting discharge of molten metal retained in a ladle during pouring into an injection sleeve of a die-casting machine, and capable of preventing a residual molten metal from being suspended from the intake/discharge port. A ladle is selectively communicatable with an atmosphere by the opening/closing unit. The opening/closing unit is connected to a molten metal pressurizing mechanism 20 and a residual molten metal removing mechanism 30 through pipes. At the time of pouring, small volume or low pressure fluid is introduced into the ladle by means of the molten metal pressurizing mechanism through the opening/closing unit. After completion of the pouring, large volume or high pressure fluid is introduced into the ladle by the residual molten metal removing mechanism. Since low volume or low pressure fluid is applied into the ladle during pouring, the molten metal can be smoothly discharged from the ladle. After the pouring, since large volume or high pressure fluid is applied into the ladle, residual molten metal in the ladle can be discharged therefrom, and no molten metal suspension from the intake-discharge port occurs. Thus, casting period can be reduced, and clean working condition can be provided.
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公开(公告)号：US5285934A
公开(公告)日：1994-02-15
申请号：US944649
申请日：1992-09-14
申请人： Noriyoshi Yamauchi , Hitoshi Ishida
发明人： Noriyoshi Yamauchi , Hitoshi Ishida
CPC分类号： B22D39/026
摘要： An automatic molten metal supplying device capable of supplying the molten metal within a short period of time while maintaining accuracy in a supply amount and preventing dripping of the molten metal from a ladle and temperature decrease of the molten metal during its transferring state even if the transferred molten metal is of a small volume. A molten metal intake/discharge port is formed at a bottom portion of a ladle, and an atmosphere communication/blockage unit is provided which selectively communicates an internal space of the ladle with an atmosphere. After the molten metal is introduced into the ladle through the intake/discharge port, the space is shut off from the atmosphere. A cross-sectional area of the intake/discharge port is in a range of from 28 to 80 mm.sup.2. The lower limit of the cross-sectional area of the intake/discharge port is sufficient to allow the molten metal to be flowed into the ladle, and the upper limit thereof is sufficient to prevent the molten metal in the ladle from dripping therefrom. Thus, a small amount of the molten metal can be rapidly and accurately casted.
摘要翻译： 一种自动熔融金属供给装置，其能够在保持供给量的精度的同时在短时间内供给熔融金属，并且防止熔融金属从钢包中滴落，并且在转印状态下熔融金属的温度降低，即使转印 熔融金属体积小。 在钢包的底部形成有熔融金属进/排气口，并且设置选择性地将钢包的内部空间与大气连通的大气连通/阻塞单元。 在熔融金属通过进/排气口引入钢包中之后，空间与大气隔绝。 进/排气口的横截面积在28至80平方毫米的范围内。 进/出口的横截面积的下限足以允许熔融金属流入钢包中，其上限足以防止钢包中的熔融金属从其中滴落。 因此，可以快速，准确地铸造少量的熔融金属。
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公开(公告)号：US5285841A
公开(公告)日：1994-02-15
申请号：US11539
申请日：1993-02-01
CPC分类号： B29C45/7337 , B22D17/2218 , B22D27/04 , B29C33/046 , B29C35/007 , B29C45/7306
摘要： A metal mold cooling device capable of employing a cooling pipe having a small diameter insertable into a cooling hole having a small diameter, and capable of performing fine supply control of a cooling liquid to the metal mold for fine temperature control thereto. A cooling pipe is connected to a compressed air source through a pipe and a first change-over valve. Further, the pipe is connected to a branch pipe to which a second change-over valve is connected. A hermetic cooling liquid tank connected to a water source is connected to the second change-over valve. A third change-over valve is provided between the compressed air source and the cooling liquid tank so as to apply pneumatic pressure onto a surface of the cooling liquid in the cooling liquid tank. Since the cooling liquid tank is provided in addition to the water source, pneumatic pressure from the compressed air source can be utilized. The cooling liquid in the cooling liquid tank is compressed and is supplied to the cooling pipe. Therefore, spraying is achievable even by a cooling pipe having a small diameter. Further, supply of the cooling liquid can be finely controlled by controlling valve opening timing of each of the change-over valves.
摘要翻译： 一种金属模具冷却装置，其能够使用具有小直径的冷却管，其可插入到具有小直径的冷却孔中，并且能够对金属模具进行精细的温度控制的冷却液的精细供给控制。 冷却管通过管道和第一转换阀连接到压缩空气源。 此外，管连接到连接有第二转换阀的分支管。 连接到水源的密封冷却液罐连接到第二转换阀。 在压缩空气源和冷却液箱之间设有第三转换阀，以将气压施加到冷却液箱内的冷却液表面。 由于除了水源之外还设置了冷却液罐，所以可以利用来自压缩空气源的气压。 冷却液箱内的冷却液被压缩并供给冷却管。 因此，即使通过具有小直径的冷却管也可实现喷射。 此外，通过控制每个转换阀的开阀正时，可以精细地控制冷却液的供给。
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6.发明授权Gas venting arrangement in injection molding apparatus and method for venting gas in the injection molding apparatus 失效注射成型装置中的排气装置和注射成型装置中的气体排出方法
公开(公告)号：US4852634A
公开(公告)日：1989-08-01
申请号：US128185
申请日：1987-12-03
CPC分类号： B22D17/145
摘要： Disclosed is a gas venting arrangement in an injection molding apparatus, and a method for venting gas out of the injection molding apparatus. The gas venting arrangement includes mold halves formed with a gas vent passage in fluid communication with a mold cavity and positioned downstream thereof, a gas vent control valve disposed at a downstream end portion of the vent passage, a detection member disposed at the vent passage for detecting injected material exceeding over the mold cavity, a valve driving mechanism connected to the gas vent control valve, and an electric control means connected between the detection member and the valve driving mechanism. The detection member generates a detection signal upon contact with the injected material and the valve driving mechanism is operated in response to the detection signal through the electric control means to operate the vent control valve.
摘要翻译： 公开了一种注射成型装置中的排气装置，以及用于将气体从注射成型装置排出的方法。 气体排出装置包括：模具半部，其形成有与模腔流体连通并位于其下游的排气通道;设置在排气通道的下游端部处的排气控制阀，设置在排气通道处的检测构件， 检测超过模腔的注射材料，连接到排气控制阀的阀驱动机构，以及连接在检测构件和阀驱动机构之间的电控制装置。 检测构件在与注入材料接触时产生检测信号，并且响应于通过电控制装置的检测信号操作阀驱动机构以操作排气控制阀。
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7.发明授权Gas venting arrangement in high speed injection molding apparatus and method for venting gas in the high speed injection molding apparatus 失效高速注射成型装置中的排气装置和高速注射成型装置中的气体排出方法
公开(公告)号：US4986338A
公开(公告)日：1991-01-22
申请号：US334373
申请日：1989-04-06
IPC分类号： B22D17/14
CPC分类号： B22D17/145
摘要： A gas venting arrangement in a high speed injection molding apparatus such as a high speed die casting machine. The gas venting arrangement includes a gas vent control valve which is closable at an optimum timing and at high speed. This valve closure is achievable by providing an improved combination of a control circuit and a valve driving mechanism. The control circuit is connected to a molten metal sensor and sends a high voltage output drive signal to the valve driving mechanism when the sensor detects a first molten metal or a metal splash. The valve driving mechanism includes an electromagnetic valve connected to a pneumatic source and a pneumatically operated valve connected between the electromagnetic valve and the gas vent control valve. The pneumatically operated valve is also connected to the pneumatic source. The electromagnetic valve performs prompt change-over operation upon receiving the drive signal, and supplies driving pneumatic pressure to the pneumatically operated valve. The pneumatically operated valve performs prompt change-over operation upon receiving the driving pneumatic pressure for promptly applying pneumatic pressure to the gas vent control valve, to thereby close the same at high speed and at optimum timing without delay.
摘要翻译： 在高速注射成型设备例如高速压铸机中的排气装置。 排气装置包括可在最佳定时和高速下关闭的排气口控制阀。 通过提供控制电路和阀驱动机构的改进的组合来实现该阀关闭。 当传感器检测到第一熔融金属或金属溅射时，控制电路连接到熔融金属传感器并将高压输出驱动信号发送到阀驱动机构。 阀驱动机构包括连接到气动源的电磁阀和连接在电磁阀和排气阀控制阀之间的气动阀。 气动阀也连接到气动源。 电磁阀在接收到驱动信号时执行迅速的切换操作，并向气动阀提供驱动气压。 气动操作阀在接收到气动压力以便及时向气体排放控制阀施加气压时执行迅速的切换操作，从而以高速和最佳定时无延迟地关闭气动压力。
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公开(公告)号：US5390724A
公开(公告)日：1995-02-21
申请号：US76742
申请日：1993-06-15
申请人： Noriyoshi Yamauchi , Hitoshi Ishida
发明人： Noriyoshi Yamauchi , Hitoshi Ishida
CPC分类号： B22D39/026
摘要： A low pressure die-casting machine has a ladle unit, a molten metal pressurizing unit, a switching unit, and a controller. The ladle unit has an intake/discharge port with a cross-sectional area in a range of from 20 to 80 mm.sup.2 so as to be capable of successively supplying the molten metal to a desired location. The molten metal pressurizing unit is switchable between two positions. One position is for selectively supplying compressed air to the ladle to positively discharge the molten metal from the ladle through the intake/discharge port. The other position is for selectively isolating the ladle in order to retain the molten metal therein. The switching unit is connected between the molten metal pressurizing unit and the ladle. It is switchable between first and second change-over positions. The first change-over position is for providing fluid communication between the ladle and the molten metal pressurizing unit. The second change-over position is for providing fluid communication between the ladle and the atmosphere. The controller is connected to the molten metal pressurizing unit for selectively driving the molten metal pressurizing unit. The controller is also connected to the switching unit for driving the switching unit.
摘要翻译： 低压压铸机具有钢包单元，熔融金属加压单元，切换单元和控制器。 浇包单元具有截面积在20至80mm 2范围内的进/排口，以便能够将熔融金属连续供应到所需位置。 熔融金属加压单元可在两个位置之间切换。 一个位置是用于选择性地向钢包供应压缩空气，以通过进/出口将钢水中的熔融金属正确排出。 另一位置是用于选择性地隔离浇包以将熔融金属保持在其中。 切换单元连接在熔融金属加压单元和钢包之间。 可在第一和第二转换位置之间切换。 第一转换位置用于提供钢包和熔融金属加压单元之间的流体连通。 第二转换位置用于提供钢包和大气之间的流体连通。 控制器连接到熔融金属加压单元，用于选择性地驱动熔融金属加压单元。 控制器还连接到用于驱动开关单元的开关单元。
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9.发明授权
公开(公告)号：US5361826A
公开(公告)日：1994-11-08
申请号：US34377
申请日：1993-03-04
CPC分类号： B22D17/145 , B22D17/32
摘要： A laminar flow injection molding apparatus and a laminar flow injection molding method capable of directly judging flow mode of molten metal flowing into a metal mold, either laminar flow mode or turbulent flow mode. An injection molding apparatus includes metal molds in which a runner portion, a cavity, and a gas vent passage are formed in communication with a casting sleeve. Molten metal detection members are provided in confrontation with at least one of the runner portion, the cavity and the gas vent passage. In a single injecting operation, molten metal detection signal is generated each time the molten metal is brought into contact with the detection member. The molten metal detection member is connected to a counter circuit where numbers of the detection signals are stored as a count value. A judgment circuit to which a preset value is inputted is electrically connected to the counter circuit so as to compare the count value with the preset value. Since flow mode of the molten metal can be directly detected, quality of the casted product can be determined even during the casting process, to thereby enhance productivity.
摘要翻译： 层流注射成型装置和层流注射成型方法，其能够直接判断流入金属模具的熔融金属的流动模式，层流模式或湍流模式。 注射成型装置包括金属模具，其中形成有流延部分，空腔和排气通道，与流延套筒连通。 熔融金属检测部件与流道部分，空腔和排气通道中的至少一个相对地设置。 在单次注射操作中，每当熔融金属与检测构件接触时，产生熔融金属检测信号。 熔融金属检测构件连接到计数器电路，其中检测信号的数量被存储为计数值。 输入预设值的判断电路与计数器电路电连接，以将计数值与预设值进行比较。 由于可以直接检测熔融金属的流动模式，即使在铸造过程中也可以确定铸造产品的质量，从而提高生产率。
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公开(公告)号：US4722385A
公开(公告)日：1988-02-02
申请号：US26317
申请日：1987-03-16
CPC分类号： B22D17/145 , Y10S425/812
摘要： A deflator for injection molding in a cavity. Two exhaust passages connect the cavity to a detection valve and an exhaust valve, which is being pumped. The exhaust passages are arranged so that the molten metal reaches the detection valve before the exhaust valve. Closing of the detection valve triggers the pneumatic closing of the exhaust valve. Also included in the invention is a bounce reduction means for the exhaust valve and a rockable connection for approaching the deflator to the mold.
摘要翻译： 在空腔中注射成型的平头指针。 两个排气通道将空腔连接到被泵送的检测阀和排气阀。 排气通道被布置成使得熔融金属在排气阀之前到达检测阀。 检测阀的关闭触发排气阀的气动关闭。 本发明还包括一种用于排气阀的反弹减小装置和用于使平缩机靠近模具的可摇摆连接。
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