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公开(公告)号：US5052909A
公开(公告)日：1991-10-01
申请号：US616752
申请日：1990-11-16
IPC分类号： B29C45/82
CPC分类号： B29C45/82 , B29C2045/824 , B29C2045/826
摘要： A hydraulic injection molding machine incorporates a pump driven by a variable speed motor preferably of the brushless DC type. The machine controller outputs driving signals to adjust the speed of the motor so that the flow delivered by the pump substantially matches the hydraulic demand imposed during each phase of the machine operating cycle. The pump is preferably a variable displacement type and is connected to a fast responding pump control for selectively carrying out pressure compensation or flow compensation. The values of the motor driving signals are calculated so that the motor/pump combination is operated at or near maximum efficiency except when the pump control varies the displacement of the pump to effect pressure or flow compensation. Hydraulic transient response is further improved by connecting the output of the pump to an accumulator by way of a check valve.
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公开(公告)号：USD341602S
公开(公告)日：1993-11-23
申请号：US659150
申请日：1991-02-22
申请人： Harold J. Faig , M. Jay Moore , Ronald A. Hertzer , Van K. Joyner
设计人： Harold J. Faig , M. Jay Moore , Ronald A. Hertzer , Van K. Joyner
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公开(公告)号：US4302066A
公开(公告)日：1981-11-24
申请号：US064501
申请日：1979-08-07
IPC分类号： H01R13/639 , H01R13/74
CPC分类号： H01R13/6395 , H01R13/74
摘要： Safety locking structure to prevent unintentional disconnection of a mating pair of male and female electrical connectors. The locking structure comprises a hollow tubular shell and a U-shaped clevis pin having a base portion and a pair of legs. The mating end of a first one of the electrical connectors is insertable into the shell from one end thereof and is captively held therein. The other end of the shell is provided with two pairs of aligned holes, each pair being adapted to receive a leg of the U-shaped clevis pin with a portion of each clevis pin leg extending into the interior of the shell. The mating end of the second one of the connectors is insertable into the shell from the other end thereof and into mating relationship with the first connector. The mating end of the second connector is provided with an exterior annular clevis pin locking groove which, when the connectors are fully mated, receives the above noted portions of the clevis pin legs to lock the second connector in mated relationship with the first connector. The shell may be configured to captively mount the first connector to a panel or to make an in-line connection between a mating pair of male and female connectors, the first of the connectors being captively mounted in the shell in the same manner described with respect to the second connector.
摘要翻译： 安全锁定结构，以防止一对公母和母电连接器的意外断开。 锁定结构包括中空管状壳体和具有基部和一对腿部的U形U形夹销。 电连接器中的第一个的配合端可从其一端插入外壳中，并且被固定地保持在其中。 壳体的另一端设置有两对对准的孔，每对对准的孔适于接纳U形U形夹销的腿部，每个U形夹销腿的一部分延伸到壳体的内部。 第二个连接器的配合端可从其另一端插入外壳并与第一连接器配合。 第二连接器的配合端设置有外部环形U形夹销锁定槽，当连接器完全配合时，接收上述的U形夹销腿的部分以将第二连接器与第一连接器配合关系。 外壳可以被配置为将第一连接器牢固地安装到面板上或者在配对的阳连接器和阴连接器之间形成直线连接，第一连接器以与...相同的方式被固定地安装在外壳中 到第二连接器。
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公开(公告)号：US06328553B1
公开(公告)日：2001-12-11
申请号：US09402414
申请日：1999-10-04
IPC分类号： B29C4564
CPC分类号： B29C45/1761 , B29C45/67 , B29C45/6707 , Y10T29/49826 , Y10T29/53978
摘要： A self-compensating support skate (46) for an annular hydraulic ram (15) mounted in the front stationary platen (10) of a “two-platen” injection molding machine (1) is disclosed. The hydraulic ram (15) fits into a central bore (22) in the stationary platen (10) and connects directly to a relatively thin die platen (11) that provides a mold mounting surface. The purpose of the skate (46) is to prevent movement (tilting) of the die platen (11) and the resulting misalignment with the movable platen (20) when the mold (30) is attached. The skate (46) is adjusted during assembly to compensate for the tolerance stack-up in the ram assembly. The “zero” clearance is maintained by disc springs (56) within the skate (46) that compensate for the expansions and contractions of the large diameter parts due to temperature variations. The die platen (11) is held in the aligned position by contact with the lower tie rods (7).
摘要翻译： 公开了一种用于安装在“双压板”注射成型机（1）的前固定压板（10）中的环形液压油缸（15）的自补偿支撑滑板（46）。 液压压头（15）装配在固定压板（10）中的中心孔（22）中，并且直接连接到提供模具安装表面的相对薄的压板（11）上。 滑板（46）的目的是防止模具台板（11）的移动（倾斜），以及当附接模具（30）时与可动压板（20）的不对准。 滑块（46）在组装期间进行调整，以补偿压头组件中的公差叠加。 “零”间隙由滑板（46）内的碟形弹簧（56）保持，其补偿由于温度变化引起的大直径部分的膨胀和收缩。 模具压板（11）通过与下拉杆（7）的接触而保持在对准位置。
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公开(公告)号：US5059365A
公开(公告)日：1991-10-22
申请号：US524312
申请日：1990-05-17
CPC分类号： B29C45/1751 , B29C45/7653
摘要： A method and apparatus for automatically setting the die height platen on a toggle-operated injection molding machine to achieve a desired mold clamping force. A control is provided and contains information relating a desired clamp tonnage with a toggle crosshead displacement, in order to permit setting the die height platen for a particular set of molds so that the clamp, when operated, will automatically provide the desired clamping force between the mold members. The adjustment is provided by moving the die height platen in response to deviations from a predetermined set of conditions, the die height platen being moved by an hydraulic motor and chain drive to shift the die height platen along guide rods that extend between the die height platen and a stationary mold platen.
摘要翻译： 一种用于在肘节式注射成型机上自动设置模具高度压板以实现期望的模具夹紧力的方法和装置。 提供控制装置并且包含有关期望的夹紧吨位与切换十字头位移的信息，以便允许为特定的一组模具设置模具高度压板，使得当操作时夹具将自动地在夹具之间提供期望的夹紧力 模具会员 通过根据偏离预定条件的模具移动模具高度压板来提供调整，模具高度压板由液压马达和链条驱动器移动，以沿着在模具高度压板之间延伸的导向杆移动模具高度压板 和固定模具台板。
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6.发明授权
公开(公告)号：US4907960A
公开(公告)日：1990-03-13
申请号：US228771
申请日：1988-08-04
申请人： Ronald A. Hertzer
发明人： Ronald A. Hertzer
CPC分类号： B29C45/82 , B29C45/561 , B29C2043/5808 , B29C2045/562 , B29C45/762
摘要： An improved computer controlled hydraulic system for a conventional toggle-operated plastic injection molding machine comprising an injection assembly and a mold clamping assembly. The hydraulic system includes a first low volume pump and a second high volume pump connected between a reservoir of hydraulic fluid and a pressure and flow control manifold. The output of the pressure and flow control manifold is connected to an injection control manifold, in turn conected to and operating the instrumentalities of the injection assembly. The output of the pressure and flow control manifold is also connected to a clamping control manifold, in turn connected to and operating the cylinder of the clamping assembly. An isolation manifold is connected between the pressure and flow control manifold and the clamping control manifold. A third low volume pump is connected between the reservoir and the isolation manifold. The isolation manifold is also connected to the reservoir. When unactuated, the isolation manifold connects the output of the pressure and flow control manifold directly to the clamping control manifold and recirculates the third pump to reservoir, when the machine is to perform sequential cycles such as conventional injection molding or conventional coining. When actuated, the isolation manifold disconnects the clamping manifold from the pressure and flow control manifold and connects the third pump to the clamping control manifold, enabling the machine to perform a coining cycle with individual and simultaneous clamping and injection control, and precise and repeatable position and speed control of the coining step.
摘要翻译： 一种改进的计算机控制液压系统，用于常规的拨动式操作塑料注射成型机，其包括注射组件和模具夹紧组件。 液压系统包括连接在液压流体储存器和压力和流量控制歧管之间的第一低容积泵和第二高容量泵。 压力和流量控制歧管的输出端连接到喷射控制歧管，反过来又指向注射组件的工具并操作。 压力和流量控制歧管的输出也连接到夹紧控制歧管，然后连接到夹紧组件的气缸并操作。 隔离歧管连接在压力和流量控制歧管和夹紧控制歧管之间。 第三个低容积泵连接在储存器和隔离歧管之间。 隔离歧管也连接到储存器。 当未致动时，隔离歧管将压力和流量控制歧管的输出直接连接到夹紧控制歧管，并且当机器执行诸如常规注射成型或常规压印的连续循环时，将第三泵再循环到储存器。 当启动时，隔离歧管将夹紧歧管与压力和流量控制歧管断开连接，并将第三个泵连接到夹紧控制歧管，使机器可以通过单独和同时的夹紧和注入控制以及精确和可重复的位置执行压印循环 和速度控制的压印步骤。
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