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    • 92. 发明申请
    • METHOD FOR CONTROLLING A PRESS WITH A VARIABLE GEAR RATIO
    • 用可变齿轮比控制压力的方法
    • US20160107407A1
    • 2016-04-21
    • US14894008
    • 2014-05-21
    • SCHULER PRESSEN GMBH
    • Dieter Reisch
    • B30B15/14B30B15/28B30B15/00
    • B30B15/148B30B15/0094B30B15/281
    • A method for controlling a press having an electric drive motor and a press transmission with a variable gear ratio (Ü) is disclosed. A tappet is movably mounted in a stroke direction (R) and is connected to the electric drive motor via the press transmission. The gear ratio (Ü) continuously increases as the tappet moves from an upper reversal point (OT) to a lower reversal point (UT). To prevent the press from exceeding a specified maximum pressing force (Fmax), a position-dependent maximum torque (Mmax) is specified for the motor. The control device compares each applied drive torque (M) with the maximum torque (Mmax). If the drive torque (M) exceeds the maximum torque (Mmax), the danger of the force applied by the tappet exceeding the maximum pressing force (Fmax) during an ongoing forming movement is detected. The control device then reduces the drive torque (M) to prevent damage to the press.
    • 公开了一种用于控制具有电动驱动电机和具有可变齿轮比(Ü)的压力变速器的压力机的方法。 挺杆可沿行程方向(R)可移动地安装,并通过压力传动装置连接到电动马达。 传动比(Ü)随着挺杆从上部反转点(OT)移动到下部反转点(UT)而持续增加。 为了防止压机超过规定的最大压力(Fmax),电机指定了与位置有关的最大转矩(Mmax)。 控制装置将所施加的驱动转矩(M)与最大转矩(Mmax)进行比较。 如果驱动转矩(M)超过最大扭矩(Mmax),则检测在正在进行的成型运动期间由挺杆施加的力超过最大压力(Fmax)的危险。 控制装置然后减小驱动扭矩(M),以防止损坏压机。
    • 93. 发明申请
    • Overload safety device in a press
    • 压机中的过载安全装置
    • US20040003730A1
    • 2004-01-08
    • US10603594
    • 2003-06-26
    • Schuler Pressen GmbH & Co. KG
    • Juergen Fahrenbach
    • F16P003/00
    • F16P7/02B30B15/284
    • In an overload safety device in a press, having a driving device with a drive shaft, a slide carrying out an oscillating movement and a connecting rod which connects the drive shaft with the slide and has a large and a small eye, the connecting rod is provided with a pressure element disposed displaceably in the longitudinal direction of the connecting rod. The pressure element acts at least indirectly upon a fluid such that, when a certain force acts upon the connecting rod, a pressure increase occurs in the fluid. The fluid is guided to a pressure limiting valve which, when a predetermined pressure is exceeded, causes an interruption of the slide movement.
    • 在压机中的过载安全装置中,具有驱动装置的驱动装置,具有摆动的滑动件和将驱动轴与滑块连接并具有大而小的眼睛的连杆,连杆是 设置有沿连接杆的纵向可移位地设置的压力元件。 压力元件至少间接作用在流体上,使得当一定力作用在连杆上时,流体中产生压力增加。 流体被引导到压力限制阀,当限制阀超过预定压力时,导致滑动运动的中断。
    • 94. 发明申请
    • Hydraulic draw press arrangement
    • 液压拉压装置
    • US20020157443A1
    • 2002-10-31
    • US10132154
    • 2002-04-26
    • Schuler Pressen GmbH & Co.
    • Hans HofeleAndreas Lauke
    • B21D022/00
    • B21D24/14
    • A hydraulic drawing system for a press is provided for controlling a blank holder. The blank holder can be moved by at least one hydraulic cylinder-piston unit which has at least one pressure chamber. By way of a connection line, the pressure chamber is connected directly with a control block provided for controlling the movements of the at least one cylinder-piston unit. At least one storage element for storing pressure for the at least one cylinder-piston unit is connected by way of a connection line with the control block and, by way of another connection line at least one valve device is connected with the control block. The connection lines extend in each case at least approximately completely within the respective components.
    • 提供了一种用于压力机的液压拉伸系统,用于控制坯料支架。 可以通过至少一个具有至少一个压力室的液压缸 - 活塞单元移动空白夹具。 通过连接线,压力室直接连接到用于控制至少一个气缸 - 活塞单元的运动的控制块。 用于存储至少一个气缸 - 活塞单元的压力的至少一个存储元件通过与控制块的连接线连接,并且通过另一连接线,至少一个阀装置与控制块连接。 连接线在每种情况下至少大致完全在相应的部件内延伸。