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1. 发明申请

US20230026318A1 ELECTROHYDROSTATIC SYSTEM WITH PRESSURE SENSOR 有权
公开(公告)号：US20230026318A1
公开(公告)日：2023-01-26
申请号：US17779622
申请日：2020-11-18
申请人： Moog GmbH
发明人： Sascha Dany , Sven Müller , Kohlhaas Reiner
IPC分类号： B30B15/20 , B30B15/28 , F15B15/18 , F15B13/02 , F15B20/00
摘要： The present invention relates to an electrohydrostatic system having a hydraulic cylinder comprising a first cylinder chamber and a second cylinder chamber. Furthermore, the electrohydrostatic system has a fluid hydraulic supply device for providing a hydraulic fluid, a fluid hydraulic motor pump unit, designed to provide a fluid hydraulic volume flow in order to move the hydraulic cylinder. A motor control device is designed to provide a rated current for an electrical drive of the fluid hydraulic motor pump unit. Moreover, the electrohydrostatic system has at least one fluid hydraulic safety valve, which on a first valve side is connected to one of the cylinder chambers of the hydraulic cylinder and on a second valve side is connected to the fluid hydraulic motor pump unit. The fluid hydraulic safety valve can be bridged via a bypass connection with a fixed orifice plate, wherein the bypass connection is connected to the first valve side and to the second valve side of the at least one fluid hydraulic safety valve. Moreover, the electrohydrostatic system has a pressure sensor that is connected to one of the cylinder chambers of the hydraulic cylinder. The pressure sensor is designed to detect a fluid hydraulic pressure on one of the cylinder chambers and, according to the detected fluid hydraulic pressure, to provide an enabling signal for the motor control device to provide the rated current for the electrical drive of the fluid hydraulic motor pump unit.

2. 发明授权

US11318697B2 Servo hydraulic press 有权
公开(公告)号：US11318697B2
公开(公告)日：2022-05-03
申请号：US16339860
申请日：2017-10-18
申请人： Automation, Press and Tooling, AP & T AB
发明人： Mikael Karlsson , Thomas Carlsson
IPC分类号： B30B15/16 , B21D22/02 , B30B15/20 , F15B7/00 , F15B13/00
摘要： The present invention relates to a servo hydraulic press for sheet metal forming. The press comprises a hydraulic cylinder, at least two servo motors and at least two pumps for supplying pressurized fluid to the hydraulic cylinder, where each servo motor drives at least one pump. The servo motors are operable at variable speed, and the first servo motor and first pump are operable in an opposite direction to the second servo motor and the second pump. With this arrangement, the servo hydraulic press may be operated at low speed without causing damage to the pumps or motors.

3. 发明授权

US10160175B2 Press machine and method for controlling slide of press machine 有权
公开(公告)号：US10160175B2
公开(公告)日：2018-12-25
申请号：US14166441
申请日：2014-01-28
申请人： AIDA ENGINEERING, LTD.
发明人： Yasuyuki Kohno , Ryosho Iwamura , Tadahiro Kondo
IPC分类号： B30B15/16 , B23Q5/033 , B30B1/26 , B30B1/34 , B30B15/14 , B30B15/20
摘要： There is provided a press machine which can apply a large compression force to a mold as well as impart smooth vibration only in a rectilinear advancing direction to the mold, and thereby can improve the press-formability. A main slide and a sub-slide constitute a slide and at the same time a cylinder-piston mechanism. During press-forming, a compression force is transmitted to the sub-slide (an upper mold) through hydraulic pressure applied interlockingly with driving of the main slide, and the sub-slide is vibrated with the hydraulic pressure being periodically changed. Favorable press-forming can be performed even under relatively difficult press-forming conditions, by controlling the vibration such that a vibration frequency of the sub-slide (the upper mold) becomes 9 Hz or higher but 33.3 Hz or lower and a vibration amplitude of the sub-slide becomes 0.05 mm or larger but 0.5 mm or smaller.

4. 发明授权

US08528475B2 Method and apparatus for improving veneer quality 有权
标题翻译：改善贴面质量的方法和装置
公开(公告)号：US08528475B2
公开(公告)日：2013-09-10
申请号：US13032448
申请日：2011-02-22
申请人： Harri Lyytinen , Jarkko Kaislaoja , Andre Klemarewski
发明人： Harri Lyytinen , Jarkko Kaislaoja , Andre Klemarewski
IPC分类号： B30B11/22 , B30B15/20 , B27M1/02
CPC分类号： B27D1/005 , B30B3/04 , B30B15/0094 , F26B1/00 , F26B5/14 , F26B5/16 , F26B2210/14
摘要： A method and apparatus for improving of wood veneer quality is provided. In the method, veneers are conveyed through a compression gap made up by two press elements, the gauge of said gap being adjustable. The method comprises the use of an endless felt assembly, which is adapted to circle around at least one of the press elements and which passes through the compression gap in such a way that at least one face of the veneer is brought against the felt assembly in said compression gap.
摘要翻译：提供了一种用于改善木材贴面质量的方法和装置。在该方法中，通过由两个按压元件构成的压缩间隙输送单板，所述间隙的规格是可调整的。该方法包括使用环形毛毡组件，其适于围绕至少一个压榨元件环绕并且以通过压缩间隙的方式环绕，使得该单板的至少一个面抵靠在毛毡组件上表示压缩间隙。

5. 发明授权

US07900556B2 Method for automated application of inoculants onto forage materials and measurement of moisture for optimum application 有权
标题翻译：将接种物自动应用于饲料材料和测量水分以实现最佳应用的方法
公开(公告)号：US07900556B2
公开(公告)日：2011-03-08
申请号：US12769887
申请日：2010-04-29
申请人： Steve Freeman , Wes Byers , Michael Van Lith , Dean Nordhues , Chad Greiman
发明人： Steve Freeman , Wes Byers , Michael Van Lith , Dean Nordhues , Chad Greiman
IPC分类号： B30B15/20
CPC分类号： A01F15/0816
摘要： Real time data measurements are taken for relative humidity and moisture content of the forage material in order to timely adjust the dispense rate of the inoculant applied to the forage material. Data gathering capabilities are provided with this system controller to enable an operator to view, adjust, and record various production records, as well as detailed information as to the amounts of inoculant applied. The components associated with the system of the present invention includes an inoculant bin or container including a dispense auger which dispenses a controlled amount of inoculant which is then conveyed to the intake opening of the baling machine the forage material enters the machine. The control system includes various sensors positioned at the intake opening of the baling machine which measures moisture content, and optionally the mass or volume of the incoming forage material. The control system provides a number of user interface options for controlling the dispensing of the inoculant product, as well as capturing data relating to the operation of the baling machine and the application of the inoculant product.
摘要翻译：为了及时调整施用于饲料材料的孕育剂的分配率，对饲料材料的相对湿度和含水量进行实时数据测量。该系统控制器提供了数据收集功能，使操作员能够查看，调整和记录各种生产记录，以及应用孕育剂量的详细信息。与本发明的系统相关的组分包括一个接种容器或容器，该容器包括一个分配一个控制量的孕育剂的分配螺旋推运器，然后将其输送到饲料进入机器的打包机的进气口。控制系统包括定位在打包机的进气口处的各种传感器，其测量水分含量，以及可选地测量进入的饲草材料的质量或体积。控制系统提供了许多用于控制孕育剂产品分配的用户界面选项，以及捕获与打包机的操作有关的数据和孕育剂产品的应用。

6. 发明授权

US5558000A High speed and high load cylinder device 失效
标题翻译：高速高负载气缸装置
公开(公告)号：US5558000A
公开(公告)日：1996-09-24
申请号：US424417
申请日：1995-04-26
申请人： Hitoshi Sawamura
发明人： Hitoshi Sawamura
IPC分类号： B21D28/20 , B30B1/32 , B30B15/16 , B30B15/20 , B30B15/22 , F15B11/02 , F15B13/04 , F01B1/00 , F15B11/00
CPC分类号： F15B13/0402 , B30B1/32 , B30B15/161 , F15B11/022 , F15B2211/20576 , F15B2211/30525 , F15B2211/40515 , F15B2211/411 , F15B2211/41536 , F15B2211/5753 , F15B2211/5756 , F15B2211/7056 , F15B2211/775
摘要： A high speed and high load cylinder device is constructed by connecting a piston of a high speed cylinder (1) having a smaller pressure receiving area and a piston of a pressurizing cylinder (2) having a large pressurizing area. The device is provided with a hydraulic circuit for supplying a hydraulic pressure to the high speed cylinder and the pressurizing cylinder. The device has a sequence valve (5) at an intermediate position in a passage (2e) providing in the piston of the pressurizing cylinder for communicating an upper chamber (2.sub.1) and a lower chamber (2.sub.2) of the pressurizing cylinder for opening and closing the passage depending upon a pilot pressure. A pilot pressure is supplied for closing the sequence valve by supplying the pilot pressure to the sequence valve. A high speed/pressurizing switching valve (12) is provided at an intermediate position in a piping (11) supplying the hydraulic pressure to the upper chamber of the pressurizing cylinder in the hydraulic circuit. The high speed/pressuring switching valve (12) is closed when high speed operation is required, by not submitting the pilot pressure to the sequence valve (5). The high speed/pressurizing switching valve (12) is open when high pressurizing force is required, by supplying the pilot valve to the sequence valve (5). With the construction, it becomes possible to perform high speed operation by the high speed cylinder and operation coping with high load by the pressurizing fluid without providing the external piping and valve.
摘要翻译： PCT No.PCT / JP93 / 01497 371日期1995年04月26日 102（e）日期1995年4月26日PCT 1993年10月18日PCT公布。公开号WO94 / 11639 日期1994年5月26日通过连接具有较小压力接收面积的高速气缸（1）的活塞和具有大的加压区域的加压缸（2）的活塞，构成高速高负载气缸装置。该装置设有用于向高速气缸和加压气缸供给液压的液压回路。该设备在通道（2e）的中间位置具有顺序阀（5），该通道（2e）设置在加压缸的活塞中，用于连通加压缸的上部腔室（21）和下部腔室（22），用于打开和关闭通道取决于先导压力。提供先导压力，通过向顺序阀提供先导压力来关闭顺序阀。在液压回路中向压力缸上部供给液压的配管（11）的中间位置设有高速/加压切换阀（12）。高速/加压切换阀（12）在需要高速运转时不通过向先导阀（5）提供先导压力而关闭。当需要高加压力时，通过向先导阀（5）供给先导阀，高速/加压切换阀（12）打开。通过该结构，可以通过高速气缸进行高速运转，并且可以通过加压流体对高负载进行操作，而不需要提供外部管道和阀。

7. 发明授权

US5253572A Press with independent controls for reciprocation of and pressure application by RAM 失效
标题翻译：按独立控制按钮，RAM的往复和压力应用
公开(公告)号：US5253572A
公开(公告)日：1993-10-19
申请号：US943245
申请日：1992-09-11
申请人： Tadayoshi Uehara , Toshio Suzuki
发明人： Tadayoshi Uehara , Toshio Suzuki
IPC分类号： B30B1/14 , B30B1/32 , B30B15/20 , B30B15/14 , B30B15/16
CPC分类号： B30B15/161 , B30B1/14 , B30B1/323
摘要： A press includes a reciprocation unit having a crank structure which is driven in horizontal reciprocation by an associated press drive. A motion direction shifting unit having a link structure is coupled to the reciprocation unit a ram so as to reciprocate the ram vertically between an upper position and a lower rest position in response to the horizontal reciprocation of the reciprocation unit, such that the ram remains in a state of substantial rest with respect to the shifting unit for a predetermined period of time upon reaching the lower position. A control unit controls a hydraulic fluid supply system to cause a pressure applying device to apply a controlled press forming force to the ram when a sensor detects that the ram is in the rest state.

8. 发明授权

US5158723A Method and apparatus for hydraulic pressing 失效
标题翻译：液压压制方法与装置
公开(公告)号：US5158723A
公开(公告)日：1992-10-27
申请号：US623946
申请日：1990-12-06
申请人： Ulrico Walchhutter , Renato Bossetti
发明人： Ulrico Walchhutter , Renato Bossetti
IPC分类号： B30B15/22 , B30B15/16 , B30B15/20 , B30B15/26
CPC分类号： B30B15/161 , B30B15/16 , B30B15/26
摘要： A hydraulic device is described which operates with an open hydraulic circuit. The device includes a positive-displacement pump for driving hydraulic fluid. An actuation motor having a flywheel is attached to the positive-displacement pump. A tank for hydraulic liquid is connected via a delivery line to the pump. The pump capable of directing hydraulic fluid flow either towards the tank or towards a hydraulic actuation means. The control of flow direction is determined by a first directional control valve means which is connected on the output side of the pump in order to discharge the flow of the positive displacement pump either to the tank or to the hydraulic actuation means. A method for pressing bodies to be processed is also described.
摘要翻译： PCT No.PCT / EP89 / 00610 Sec。 371 1990年12月6日第 102（e）1990年12月6日日期PCT提交1989年5月30日PCT公布。 WO89 / 11969 PCT公开号日期为1989年12月14日。描述了一种使用开放液压回路工作的液压装置。该装置包括用于驱动液压流体的容积式泵。具有飞轮的致动马达附接到正排量泵。用于液压液体的罐通过输送管路连接到泵。能够将液压流体引向罐或朝向液压致动装置的泵。流动方向的控制由连接在泵的输出侧上的第一方向控制阀装置确定，以将正排量泵的流量排放到罐或液压致动装置。还描述了一种用于压制待加工体的方法。

9. 发明授权

US4918364A Method for controlling noise and vibration of machine tools with high efficiency 失效
标题翻译：高效率地控制机床噪声和振动的方法
公开(公告)号：US4918364A
公开(公告)日：1990-04-17
申请号：US12173
申请日：1987-02-09
申请人： Kinshiro Naito
发明人： Kinshiro Naito
IPC分类号： B23D15/14 , B21D28/00 , B21D28/12 , B21D28/20 , B21D28/36 , B23D33/00 , B30B15/20 , B30B15/28
CPC分类号： B30B15/28 , B21D28/12 , B21D28/20 , B30B15/20
摘要： A method for controlling the noise and vibration of machine tools in correspondence with environmental control standards includes determining a first level of noise and vibration generated by the machine tool during its operation, selecting a desired level of noise and vibration generated by said machine tool during its operation, and controlling the operation of said machine tool so that said machine tool operates at a second level of noise and vibration, wherein said second level of noise and vibration is below said desired level of noise and vibration. In a specific embodiment the stroke speed of the stroke section of a plate processing machine is controlled.
摘要翻译：一种用于根据环境控制标准来控制机床的噪声和振动的方法，包括确定机床在其操作过程中产生的噪声和振动的第一级，在其工作期间选择所需机器产生的噪声和振动操作和控制所述机床的操作，使得所述机床工作在第二噪声和振动水平，其中所述第二级噪声和振动低于所述期望的噪声和振动水平。在具体实施例中，控制板加工机的冲程部分的冲程速度。

10. 发明授权

US4873912A Hydraulic driving arrangement 失效
标题翻译：液压驱动装置
公开(公告)号：US4873912A
公开(公告)日：1989-10-17
申请号：US502552
申请日：1983-06-09
申请人： Eckehart Schulze
发明人： Eckehart Schulze
IPC分类号： B23Q5/26 , B30B1/32 , B30B15/16 , B30B15/18 , B30B15/20 , F15B11/028 , F15B11/15
CPC分类号： B30B15/16 , B30B15/161
摘要： A hydraulic drive system for a machine element performing in one work cycle a sequence of motions comprising a rapid feed motion, a working stroke under load and an oppositely directed rapid-return motion. The drive element includes a hydraulic cylinder having three working surfaces A.sub.1, A.sub.2, A.sub.3. Motion control is effected by an electro-hydraulic follow-up control valve with a pre-setting device controlled by a stepping motor and a mechanical actual-value feed-back device. During rapid feed motion, the relatively small working surface A.sub.1 is subjected to the output pressure of the follow-up control valve only, while during the working stroke the pressure acts additionally on the working surface A.sub.3. The rapid-return movements of the piston of the cylinder are controlled by applying pressure to the working surface A.sub.2, or by relieving pressure from the two other working surfaces A.sub.1 and A.sub.3. A pressure-controlled reversing valve is moved by the output pressure of a pilot valve control arrangement into its operating position corresponding to the working stroke when the output pressure P.sub.A of the follow-up control valve exceeds a pre-determined threshold value P.sub.sl, and returned to its operating position corresponding to the rapid motion conditions when the output pressure P.sub.A of the follow-up control valve has dropped to a value P.sub.s2 below or at least equal to the value P.sub.s1.A.sub.1 /A.sub.L, wherein in the particular case described L.sub.L =(A.sub.1 +A.sub.3).
摘要翻译：一种用于机器元件的液压驱动系统，其在一个工作循环中执行一系列运动，其包括快速进给运动，负载下的工作冲程和相反的快速返回运动。驱动元件包括具有三个工作表面A1，A2，A3的液压缸。运动控制由具有由步进电机和机械实际值反馈装置控制的预设装置的电动液压跟随控制阀来实现。在快速进给运动期间，相对较小的工作表面A1仅受到后续控制阀的输出压力的影响，而在工作行程期间，压力另外作用在工作表面A3上。通过向工作面A2施加压力，或者通过减轻来自其它两个工作面A1和A3的压力来控制气缸的活塞的快速返回运动。当跟随控制阀的输出压力PA超过预定阈值Ps1时，压力控制换向阀通过先导阀控制装置的输出压力移动到与工作行程相对应的操作位置，并返回到后续控制阀的输出压力PA已经降到低于或至少等于值Ps1.A1 / AL的值Ps2时对应于快速运动条件的操作位置，其中在所描述的特定情况下LL = （A1 + A3）。

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