公开(公告)号：US06652264B2

公开(公告)日：2003-11-25

申请号：US09996650

申请日：2001-11-28

申请人： Kinji Yokoya ,  Hiroshi Yamaura

发明人： Kinji Yokoya ,  Hiroshi Yamaura

IPC分类号： B29C4564

CPC分类号： B29C45/5008 ,  B29C45/17 ,  B29C45/1761 ,  Y10S425/129

摘要： Centering of an injection heating cylinder and screw driver is provided even after assembly, using an electric injection mechanism with height adjustment for the screw driver. A front plate is provided with an injection heating cylinder having a screw installed inside at the front middle and a rear plate is provided with are electric motor for injection-driving. The plates are affixed to an installation member. The front and rear plates are linked by guide bars installed between them. The screw driver is inserted into the guide bar and movably disposed between the plates. A driving mechanism connected to an electric motor is composed of a ball screw shaft and a ball nut member, and is installed over the screw driver and the rear plate. A centering member slidably supports the screw driver 10 and, moreover, provides height adjustment, and is installed at the sides of the screw driver.

摘要翻译： 即使在组装之后，也可以使用注射加热缸和螺丝刀的定中心，使用螺丝刀的高度调节电动注射机构。 前板设置有具有安装在前中部内部的螺钉的注射加热缸，并且后板设置有用于注射驱动的电动机。 板固定在安装构件上。 前板和后板通过安装在它们之间的导杆连接。 螺丝刀被插入到引导杆中并可移动地设置在板之间。 与电动机连接的驱动机构由滚珠丝杠轴和滚珠螺母部件构成，安装在螺丝刀和后板上。 定心构件可滑动地支撑螺丝刀10，并且还提供高度调节，并且安装在螺丝刀的侧面。

公开(公告)号：US20030209824A1

公开(公告)日：2003-11-13

申请号：US10431608

申请日：2003-05-08

申请人： TOSHIBA MACHINE CO., LTD.

发明人： Jun Koike ,  Katsuhito Ogura ,  Yoshinori Nakanishi ,  Harumichi Tokuyama ,  Katsuyoshi Kido

IPC分类号： B29C045/76 ,  B29C045/50

CPC分类号： B29C45/5008 ,  B29C45/76 ,  B29C45/7666 ,  B29C2045/1793 ,  B29C2045/5032 ,  B29C2945/76006 ,  B29C2945/76187 ,  B29C2945/76525 ,  B29C2945/76943

摘要： A screw is installed in a heating barrel. The rear end of the screw is supported by an intermediate plate via a bearing. The servomotor for charging is connected to a near the rear end of the screw. To the back surface of the intermediate plate, a direct current linear motor for injection is connected via a load cell. The load cell detects the axial direction load applied to the rear end of the screw by the pressure of the molten resin in the heating barrel during charging, and also detects the axial direction load applied to the rear end of the screw for moving the screw forward during injection. The current to be supplied to the DC linear motor is controlled in a feedback manner based on the detected axial direction load, thereby bringing the pressure of the molten resin in the heating barrel closer to a predetermined pattern.

摘要翻译： 螺丝安装在加热筒中。 螺钉的后端通过轴承由中间板支撑。 用于充电的伺服电机连接到螺钉的后端附近。 对于中间板的后表面，用于注入的直流线性电动机通过测力传感器连接。 称重传感器在充电期间通过加热筒中的熔融树脂的压力来检测施加到螺杆的后端的轴向载荷，并且还检测施加到用于将螺钉向前移动的螺钉的后端的轴向载荷 在注射期间。 基于检测到的轴向负载，以反馈方式控制供给DC线性电动机的电流，从而使加热筒内的熔融树脂的压力更接近预定图案。

公开(公告)号：US20030165590A1

公开(公告)日：2003-09-04

申请号：US10276761

申请日：2003-04-28

发明人： Jorg Dantlgraber

IPC分类号： B29C045/50

CPC分类号： B29C45/5008 ,  B29C2045/5036 ,  B29C2045/5048

摘要： The invention is based on an injection unit for a plastic injection molding machine having a screw, having a motion spindle as first drive element, via which the screw can be rotationally driven for the plasticization and is movable in the axial direction for the injection, having a spindle nut as second drive element, which is coupled to the motion spindle via a motion screw thread, having a large electric motor which is arranged so as to be fixed to the frame and by which, while one drive element is held against rotation, the other drive element can be rotationally driven for moving the screw during the injection, and having a device which is arranged so as to be fixed to the frame and by which a rotational speed of the one drive element can be preset during the plasticization, this rotational speed being different from the rotational speed at which the large electric motor simultaneously drives the other drive element. In a known injection unit of this type, two equally large electric motors, which can both apply a large torque, are used, by which such a counter-torque is exerted on the motion spindle during the injection operation that the motion spindle does not rotate. On the whole, the known injection unit is quite expensive on account of the two electric motors designed for a high torque. According to the invention, in order to provide a more cost-effective injection unit, the drive element held against rotation during the moving of the screw for the injection can be locked by a releasable mechanical brake.

摘要翻译： 本发明是基于一种具有螺钉的塑料注射成型机的注射单元，其具有作为第一驱动元件的运动心轴，通过该注射单元可旋转地驱动螺杆进行塑化，并且可以在轴向方向上移动用于注射， 主轴螺母作为第二驱动元件，其通过运动螺纹联接到运动主轴，具有大的电动机，其被布置成固定到框架，并且当一个驱动元件被保持抵抗旋转时， 可以旋转地驱动另一个驱动元件以在注射期间移动螺钉，并且具有被布置成固定到框架上并且在塑化期间可以预设一个驱动元件的转速的装置，这 转速与大电动机同时驱动另一驱动元件的转速不同。 在这种类型的已知的注射单元中，使用两个同时施加大扭矩的同等大的电动机，在注射操作期间这样的反扭矩被施加在运动心轴上，使运动心轴不旋转 。 总体而言，已知的注射单元由于设计用于高扭矩的两个电动马达而相当昂贵。 根据本发明，为了提供更具成本效益的喷射单元，可以通过可释放的机械制动器来锁定在用于喷射的螺杆的移动期间防止旋转的驱动元件。

公开(公告)号：US06612183B2

公开(公告)日：2003-09-02

申请号：US09940112

申请日：2001-08-27

申请人： Wolfgang Steinkellner

发明人： Wolfgang Steinkellner

IPC分类号： G01N310

CPC分类号： B29C45/77 ,  B29C45/5008 ,  B29C2045/5032 ,  B29C2945/76006 ,  B29C2945/76096 ,  B29C2945/76214 ,  B29C2945/76454 ,  B29C2945/76498 ,  B29C2945/76598 ,  B29C2945/76605 ,  B29C2945/76665

摘要： A method of regulating the counterpressure in an apparatus for plasticising and quantitatively regulating plastic material by means of a screw which is driven by separate servo motors for the rotary movement and the axial movement, wherein the deviation of the counterpressure from the reference value is detected by at least one sensor, the axial movement of the screw being predetermined and deviations of the pressure from the reference value being compensated by altering the rotary movement of the screw.

公开(公告)号：US20030111756A1

公开(公告)日：2003-06-19

申请号：US10182612

申请日：2002-09-30

发明人： Ryozo Morita ,  Satoshi Tomita ,  Tsuyoshi Miyaki ,  Keijiro Oka ,  Tokuzuo Sekiyama ,  Hiroshi Shibuya ,  Satoshi Nishida

IPC分类号： B29C045/77

CPC分类号： B29C45/5008 ,  B29C45/76 ,  B29C2045/1792 ,  B29C2045/5032 ,  B29C2945/76006 ,  B29C2945/76187 ,  B29C2945/76307 ,  B29C2945/76498 ,  B29C2945/76511 ,  B29C2945/76525 ,  B29C2945/76568 ,  B29C2945/76665 ,  B29C2945/76859

摘要： An injection molding machine comprises a pre-pressure addition means 2 adding a pre-pressure B acting in the opposite direction of a molding material pressure A received by a screw 1 to a detection means 3 and/or the screw 1, the detection means 3 detecting the axial pressures A and B of the screw, and a screw movement control means 4 controlling the axial pressure based on a different between the pre-pressure B and the molding material pressure A, wherein the pre-pressure addition means 2 is made non-contact with the direction means 3, a forward and backward driving motor 17 is disposed adjacent to a heating cylinder 10, and a screw connector 21 at the rear end of the screw 1 is spline-connected inside a rotating rotor of a screw rotating motor 12. According to the machine, the molding material pressure received by the screw can be accurately detected without being affected by the wear of the machine so as to properly control the axial pressure of the screw and to make the machine compact.

摘要翻译： 注射成型机包括预加压添加装置2，其将与由螺钉1接收的成型材料压力A相反的方向作用在检测装置3和/或螺杆1上的预压力B，检测装置3 检测螺杆的轴向压力A和B;以及螺杆运动控制装置4，其基于预压力B和成型材料压力A之间的不同来控制轴向压力，其中，预压添加装置2被制成非 与方向装置3相接触，前后驱动马达17配置在与加热缸10相邻的位置，螺杆1的后端的螺旋连接器21花键连接在螺旋旋转马达 根据机器，可以精确地检测螺杆接收的成型材料的压力，而不受机器的磨损的影响，以适当地控制螺杆的轴向压力并使机器com 协议。

公开(公告)号：US06533572B1

公开(公告)日：2003-03-18

申请号：US09667588

申请日：2000-09-22

申请人： Atsushi Koide

发明人： Atsushi Koide

IPC分类号： B29C4518

CPC分类号： B29C45/661 ,  B29C45/5008 ,  B29C2045/5028 ,  B29C2045/5032

摘要： An injection molding machine is equipped with a drive mechanism which reciprocates a movable member, such as a screw or a mold clamping mechanism, by use of a servomotor and a ball screw mechanism. In the injection molding machine, an end portion of a rotor shaft of the servomotor is connected directly to an end portion of a ball screw (or a nut) of the ball screw mechanism for reciprocating the movable member. This structure enables rotation of the servomotor to be transmitted directly to the ball screw (or the nut) of the ball screw mechanism without intervention of a rotation transmission mechanism.

摘要翻译： 注射成型机配备有通过使用伺服电动机和滚珠丝杠机构使诸如螺杆或合模机构的可动部件往复运动的驱动机构。 在注射成型机中，伺服电动机的转子轴的端部直接连接在滚珠丝杠机构的滚珠丝杠（或螺母）的端部，用于往复运动的部件。 该结构能够使伺服电动机的旋转直接传递到滚珠丝杠机构的滚珠丝杠（或螺母），而不需要旋转传动机构的干预。

公开(公告)号：US20030029325A1

公开(公告)日：2003-02-13

申请号：US10152311

申请日：2002-05-20

发明人： Jorg Dantlgraber

IPC分类号： A23L001/00

CPC分类号： B22D17/26 ,  B29C45/5008 ,  B29C45/67 ,  B29C2045/6785 ,  F15B7/001 ,  F15B7/005 ,  F15B7/04 ,  F15B11/024 ,  F15B2211/20515 ,  F15B2211/21 ,  F15B2211/27 ,  F15B2211/30565 ,  F15B2211/3058 ,  F15B2211/31529 ,  F15B2211/625 ,  F15B2211/7055 ,  F15B2211/775

摘要： The invention is based on a drive device for a movable part, especially a mold closure device for an injection molding machine. A conventional mold closure device possesses a hydraulic cylinder-and-piston unit having a first hydraulic piston, which borders with a first active surface on a first pressure chamber and with a second active surface, which is smaller than the first active surface and faces in the opposite direction thereto, on a second pressure chamber, and comprises a further hydraulic piston, which is fixedly connected to the first hydraulic piston, and possesses a third active surface, which borders on a third pressure chamber and is active in the same direction as the second active surface. Via a valve arrangement, the second pressure chamber can be connected to the first pressure chamber and can be relieved of pressure separately from the first pressure chamber. In the conventional mold closure device, the cylinder-and-piston unit for closing and opening the mold is operated in open hydraulic circuits, the pressure chambers being connected to a tank at the end of the closure operation and at the end of the opening operation and the movable part evidently being braked only by friction. It is an object of the invention further to develop a drive device of the conventional type so that it can be operated at higher dynamics. This is achieved in that a second hydraulic cylinder-and-piston unit is present, having a second hydraulic piston which is movable relative to the cylinder by a drive motor, especially an electric drive motor, and borders with a fourth active surface on a fourth pressure chamber, which is permanently connected to the third pressure chamber, and with a fifth active surface, which faces in the opposite direction to the fourth active surface, borders on a fifth pressure chamber, which can be connected to the first pressure chamber, and wherein the dimensional relationship between the fifth active surface and the difference between the first active surface and the second active surface is equal to the dimensional relationship between the fourth active surface and the third active surface. In a drive device according to the invention, a pressure which brakes the movable part builds up in the first pressure chamber and in the second pressure chamber or third pressure chamber when the second hydraulic piston is no longer moving, without a valve having to be actuated for that purpose.

公开(公告)号：US06478572B1

公开(公告)日：2002-11-12

申请号：US09610814

申请日：2000-07-06

申请人： Robert D. Schad

发明人： Robert D. Schad

IPC分类号： B29C4550

CPC分类号： B29C45/5008 ,  B29C45/54 ,  B29C45/68 ,  B29C47/0009 ,  B29C47/0801 ,  B29C2045/5068 ,  B29C2045/824

摘要： An energy efficient drive system is provided for use on typical injection molding machines whereby a single electric motor drives both the extruder screw and a hydraulic motor that continuously charges a hydraulic accumulator during the extrusion process. During the injection cycle, the charge in the accumulator is directed to stroke the extruder screw and inject melt into the mold cavities. Another embodiment utilizes a similar arrangement on the clamp mechanism of the injection molding machine whereby the charge in the accumulator is directed to hold the mold closed during the injection cycle.

摘要翻译： 提供了一种用于典型注塑机的节能驱动系统，由此单个电动机驱动挤出机螺杆和在挤出过程中连续地对液压蓄能器充气的液压马达。 在注射循环期间，蓄能器中的电荷被引导以冲击挤出机螺杆并将熔体注入模腔中。 另一个实施例在注塑机的夹紧机构上采用类似的布置，由此蓄能器中的电荷被引导以在注射周期期间保持模具闭合。

公开(公告)号：US20020160076A1

公开(公告)日：2002-10-31

申请号：US10115026

申请日：2002-04-04

申请人： MITSUBISHI HEAVY INDUSTRIES LTD.

发明人： Koji Kubota ,  Yoshito Yamamoto ,  Kazukiyo Kohno ,  Takeshi Ishiwada

IPC分类号： B29C045/50

CPC分类号： F16H25/20 ,  B29C45/4005 ,  B29C45/5008 ,  B29C45/66 ,  F16H25/2204 ,  Y10T74/18592

摘要： The present invention provides a ball screw device for linear movement, which moves a working body by using a single of a plurality of ball screw shafts and ball screw nuts. In the ball screw device, a plurality of ball screw nuts are engaged threadedly with the same ball screw shaft. Also, one of the ball screw nuts on each ball screw shaft is attached to the working body via a fixed flange, the single fixed flange or one of the fixed flanges is provided with a load sensor, and other ball screw nuts serve as a fluid pressure supporting mechanism using a cylinder and a piston. A fluid pressure is controlled so that the support force of the fluid pressure supporting mechanism is equal to the pushing force detected by the load sensor. By this configuration, a large load can be distributed evenly to the ball screw nuts.

摘要翻译： 本发明提供了一种用于线性运动的滚珠丝杠装置，其通过使用多个滚珠丝杠轴和滚珠丝杠螺母中的单个运动来移动工作体。 在滚珠丝杠装置中，多个滚珠丝杠螺母与相同的滚珠丝杠轴螺纹接合。 此外，每个滚珠丝杠轴上的一个滚珠丝杠螺母通过固定法兰连接到工作体上，单个固定法兰或固定法兰中的一个设有负载传感器，其他滚珠丝杠螺母用作流体 使用气缸和活塞的压力支撑机构。 控制流体压力使得流体压力支撑机构的支撑力等于由负载传感器检测到的推力。 通过这种配置，可以将大的负载均匀分布到滚珠丝杠螺母。

公开(公告)号：US20020149268A1

公开(公告)日：2002-10-17

申请号：US10120556

申请日：2002-04-12

申请人： NAMU CO., LTD.

发明人： Tominori Yamada ,  Fumihiro Ogata

IPC分类号： H01H003/26

CPC分类号： B29C45/76 ,  B29C45/4005 ,  B29C45/5008 ,  B29C2045/1798 ,  F16H25/2015 ,  F16H25/2204 ,  F16H2025/2068 ,  H02K7/06 ,  Y10T307/977 ,  Y10T307/983

摘要： An electric actuator that is structured simply, low in costs and high in both energy efficiency and operation accuracy and is capable of realizing frequent activation and stop is provided. In a return stroke in which a linear actuator is in low load operation state, an energy generated by an electric motor and a kinetic energy generated by movable portions when they stop are absorbed and accumulated by a coil spring. By this constitution, it becomes possible to cause the movable portions of the linear actuator to quickly stop while eliminating the necessity of giving a braking force by an electric or mechanical brake or the like and of providing a configuration designed for giving a braking force in a reliable manner such as one provided as a measure against heat generation. On the other hand, in an actuation stroke, the energy accumulated in the spring is released as operation energy of the movable portions when the spring extends and a driving force required of the electric motor is reduced.

摘要翻译： 一种电动执行器，其结构简单，成本低，能效和操作精度高，能够实现频繁的启动和停止。 在线性致动器处于低负载运行状态的返回行程中，由电动机产生的能量和由可动部分停止时产生的动能由螺旋弹簧吸收和累积。 通过这种结构，可以使线性致动器的可动部分快速停止，同时不需要通过电动或机械制动器等产生制动力，并且提供设计用于在 可靠的方式，例如作为防止发热的措施。 另一方面，在致动行程中，当弹簧延伸并且电动机所需的驱动力减小时，弹簧中累积的能量被释放为可动部分的操作能量。