Using data about the force flow in a press for the operation of a ram

    公开(公告)号:US10464275B2

    公开(公告)日:2019-11-05

    申请号:US14372217

    申请日:2013-01-15

    Abstract: A method of using data on the force flow in a press for the operation of a plunger, wherein the loads of the parts involved in the force flow can differ as a result of eccentrically operating forces, in such a way that the data about the respectively acting forces that, in accordance with Hooke's law, cause an extension or compression of a movement of the parts involved in the force flow, is measured and evaluated in relation to a drive device and a position of the plunger, whereupon a skewed position of the plunger is permitted or a skewed position of the plunger is counteracted or a skewed position of the plunger is set during operation of the press.

    Die cushion apparatus of press machine and die cushion controlling method

    公开(公告)号:US09808848B2

    公开(公告)日:2017-11-07

    申请号:US14162377

    申请日:2014-01-23

    CPC classification number: B21D24/02 B21D24/14 B30B15/24

    Abstract: According to the die cushion apparatus of a press machine and the die cushion controlling method of the present invention, in holding the cushion pad on standby at a desired standby position, it is possible to hold the cushion pad on standby in parallel with the lower faces of the dies mounted to the slide, and if the lower faces of the dies are inclined, it is possible to hold the cushion pad on standby in the state of being inclined. Through this configuration, it is possible to easily allow the material to come into contact with the lower faces of the dies from the beginning of the die cushion force control (beginning of the collision), and also possible to smoothen the die cushion action in the plane, thereby enhancing the formability.

    Machine press
    53.
    发明授权
    Machine press 有权
    机械压力机

    公开(公告)号:US09168713B2

    公开(公告)日:2015-10-27

    申请号:US14516241

    申请日:2014-10-16

    CPC classification number: B30B15/166 B30B1/32 B30B15/0052 B30B15/16 B30B15/24

    Abstract: The hydraulic drive system of a machine press comprises at least two independent hydraulic drive units. In each of said hydraulic drive units at least one hydraulic cylinder, which is connected via valves and a main pressure line under supply pressure to a pump driven by a motor, raises and lowers the upper tool carrier. The rotational speed of the motor is adjustable via the numeric machine control, in which a rotational speed profile defined across the work cycle is stored. Furthermore, a pressure-limiting unit limiting the level of the supply pressure is provided, which at least during a part of the work cycle limits the supply pressure to the lower pressure of a pressure profile defined across the work cycle and stored in the numeric machine control and the actual load pressure increased by an extra amount at the at least one hydraulic cylinder.

    Abstract translation: 机械压力机的液压驱动系统包括至少两个独立的液压驱动单元。 在每个所述液压驱动单元中,通过阀连接的至少一个液压缸和在由电动机驱动的泵的供给压力下的主压力线升高并降低了上部工具架。 通过数字机器控制可以调节电动机的转速,其中存储了跨工作周期定义的转速曲线。 此外,提供了限制供应压力水平的压力限制单元,其至少在一部分工作循环期间将供应压力限制在跨工作循环定义并存储在数字机器中的压力分布的较低压力 控制和实际负载压力在至少一个液压缸上增加额外的量。

    Apparatus and method using imaging in building a cotton module
    55.
    发明授权
    Apparatus and method using imaging in building a cotton module 有权
    在建立棉花模块时使用成像的装置和方法

    公开(公告)号:US07677169B2

    公开(公告)日:2010-03-16

    申请号:US12206458

    申请日:2008-09-08

    CPC classification number: A01D46/085

    Abstract: A cotton module building apparatus, utilizing imaging apparatus operable for capturing real-time images of the module building process, including accumulated cotton in the module building chamber, cotton inflow, and the in-process cotton module, and a method for building a cotton module using the images. The imaging apparatus includes a camera or cameras disposed at advantageous locations about the module building chamber, and cotton is distributed and moved within the chamber responsive to the images, for advantageous placement and distribution for forming a module having a desired consistency and top shape. Imaging apparatus can also be provided for observing unloading of a module from the chamber, and for facilitating maneuvering and positioning the unloading apparatus.

    Abstract translation: 一种棉花模块建筑装置,利用成像装置,其可操作用于捕获模块建造过程的实时图像,包括模块建筑室中的积累的棉花,棉花流入和处理中棉花模块,以及用于建立棉花模块的方法 使用图像。 成像设备包括设置在围绕模块建造室的有利位置处的相机或照相机,并且棉花响应于图像在室内分布和移动,用于形成具有期望的一致性和顶部形状的模块的有利的布置和分配。 还可以提供成像装置,用于观察模块从腔室的卸载,并且便于操纵和定位卸载装置。

    Press forming method
    56.
    发明授权
    Press forming method 有权
    压制成型法

    公开(公告)号:US07165490B2

    公开(公告)日:2007-01-23

    申请号:US10524321

    申请日:2003-10-09

    CPC classification number: B30B15/14 B30B1/18 B30B1/186 B30B15/24

    Abstract: A press forming method is disclosed, wherein press forming can be effected at high speed while maintaining the horizontal state of a slide plate in press-forming a work-piece by a press machine. A press machine is used in which the slide plate is pressed by a plurality of drive sources using servo-motors for driving. The speed of one of the plurality of drive sources is set to a target speed for production forming for the drive source, and by using a function that shows a delay in terms of a speed of the drive source and a load thereon and also using a load separately found, the respective speeds of the drive sources are found so as to eliminate the delay between the drive sources. Trial forming is repeated on the basis of the thus-found speed to derive conditions that enable press-forming at high speed while maintaining the horizontal state of the slide plate.

    Abstract translation: 公开了一种压制成形方法,其中可以高速实现冲压成形,同时通过压制机在保持滑动板的水平状态的同时对成型件进行压制成型。 使用使用用于驱动的​​伺服电动机通过多个驱动源按压滑板的压力机。 将多个驱动源中的一个驱动源的速度设定为用于驱动源的生产形成的目标速度,并且通过使用在驱动源的速度和其上的负载方面显示延迟的功能,并且还使用 发现单独的负载,找到驱动源的相应速度,以消除驱动源之间的延迟。 基于这样找到的速度重复试制,得到能够保持滑动板的水平状态的高速压制成形的条件。

    Press forming method
    57.
    发明申请
    Press forming method 有权
    压制成型法

    公开(公告)号:US20050257697A1

    公开(公告)日:2005-11-24

    申请号:US10524322

    申请日:2003-10-09

    CPC classification number: B30B15/24 B30B1/18 B30B15/14

    Abstract: A press forming method is disclosed, wherein press forming can be effected at high speed while maintaining the horizontal state of a slide plate in press-forming work by a press machine. A press machine is used in which the slide plate is pressed by a plurality of servo-motor drive sources. In trial forming, the slide plate is sufficiently slowly moved to measure the delay of each drive source. According to the magnitude of the delay of each drive source or according to the difference between the trial forming speed and the production forming speed, the respective speeds of the drive sources are corrected, and trial forming is repeated on the basis of the corrected speed to derive conditions that enable press forming at high forming speed suitable for mass production while maintaining the horizontal state of the slide plate to the extent of ensuring sufficient product accuracy.

    Abstract translation: 公开了一种压制成型方法,其中可以高速实现冲压成形,同时通过压力机将滑板的水平状态保持在压制成型中。 使用按压机,其中滑动板被多个伺服电动机驱动源按压。 在试验成型中,滑板被足够慢地移动以测量每个驱动源的延迟。 根据每个驱动源的延迟的大小或根据试制成形速度与生产成形速度之间的差异,校正驱动源的相应速度,并且基于校正速度重复试验成形 获得能够在适合于大量生产的高成形速度下进行压制成形的条件,同时将滑板的水平状态保持在确保足够的产品精度的程度。

    Hydraulic bending press with movable lower platen
    58.
    发明授权
    Hydraulic bending press with movable lower platen 失效
    液压弯曲压力与可移动的下板

    公开(公告)号:US5243902A

    公开(公告)日:1993-09-14

    申请号:US752506

    申请日:1991-08-19

    Applicant: Jean Plazenet

    Inventor: Jean Plazenet

    CPC classification number: B21D5/0272 B30B15/24

    Abstract: A bending press is equipped with a movable lower platen actuated by at least three hydraulic jacks, two of which are placed at the lateral ends of the movable platen and at least one of which is placed at the center along the axis of the platen. The hydraulic circuit is associated with a device for detecting the presence of any tilting torque on the movable platen, and with a comparator and computer system connected to the detection device. The jacks are connected to a common directional distributor via pressure control units controlled by the comparator and computer system. This system is capable of producing a continuous reduction in pressure exerted on the jack located on the side opposite to the direction of the tilting torque and possibly also on the jack located at the center so as to produce a torque in opposition to the tilting torque.

    Abstract translation: PCT No.PCT / FR90 / 00918 Sec。 371日期1991年8月19日 102(e)1991年8月19日PCT PCT 1990年12月18日PCT公布。 第WO91 / 08894号公报 日期:1991年6月27日。弯曲压力机配备有由至少三个液压千斤顶致动的可动下压板,其中两个液压千斤顶被放置在可动压板的横向端部,并且其中至少一个放置在中心 压板的轴线。 液压回路与用于检测可动压板上任何倾斜转矩的存在以及连接到检测装置的比较器和计算机系统相关联的装置。 千斤顶通过由比较器和计算机系统控制的压力控制单元连接到公共定向分配器。 该系统能够连续地降低施加在位于与倾斜转矩方向相反的一侧的千斤顶处的压力,并且还可能产生位于中心的千斤顶,以产生与倾斜转矩相反的扭矩。

    Maintaining press platens in parallel relationship
    59.
    发明授权
    Maintaining press platens in parallel relationship 失效
    维持压盘平行关系

    公开(公告)号:US5156782A

    公开(公告)日:1992-10-20

    申请号:US769820

    申请日:1991-10-02

    CPC classification number: B30B15/245 B30B15/007

    Abstract: Press platens are maintained parallel in critical central regions proximate to a mold between the platens. Leveling cylinders acting between the platens to resist downward action of a central ram on a movable platen. Data identifying expected local platen deflection in response to various operating pressures of the leveling cylinders are recorded. For each leveling cylinder, the current operating pressure is determined and the relative spacing of the platens proximate to the leveling cylinder is sensed. The operating pressures of the cylinders are controlled in response to the sensed relative spacing of the platens and in response to the expected local platen deflection for each leveling cylinder at its current operating pressure to maintain a substantially parallel relationship between the platens proximate to the mold. The platen deflection data required for each leveling cylinder are obtained in a preliminary process involving operation of the platens to compress the mold, operating the leveling cylinders at their various operating pressures, and sensing and recording local platen deflection that results.

    Abstract translation: 压板在压板之间的模具附近的临界中心区域保持平行。 调平气缸作用在压板之间,以抵抗可动压板上的中心压头的向下作用。 记录响应于流平滚筒的各种操作压力而识别预期的局部压板偏转的数据。 对于每个调平圆筒,确定当前的操作压力,并且感测靠近调平圆筒的压板的相对间隔。 响应于感测到的压板的相对间隔并且响应于在其当前操作压力下的每个调平圆筒的预期局部压板偏移来保持气缸的操作压力,以保持靠近模具的压板之间的基本上平行的关系。 每个调平圆筒所需的压板偏转数据都是在一个初步的过程中得到的,该初步过程涉及压板的压缩模具,在其各种操作压力下操作调平圆筒,以及感测和记录所产生的局部压板偏转。

    Multi-actuator hydraulic press
    60.
    发明授权
    Multi-actuator hydraulic press 失效
    多执行器液压机

    公开(公告)号:US4953458A

    公开(公告)日:1990-09-04

    申请号:US322531

    申请日:1989-03-13

    Applicant: Charles L. Day

    Inventor: Charles L. Day

    CPC classification number: B30B15/161 B30B1/323 B30B1/34

    Abstract: A hydraulic press; having two platens, a multiplicity of hydraulic cylinders, capable of actuation in series, parallel, or passively to generate a plurality of velocities and pressures, on demand, either up acting or down acting, and with all opposing velocities and forces equal, yet requiring less energy for operation than the prior art.

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