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    Arrangement for hydraulic presses and bending presses
    51.
    发明授权
    Arrangement for hydraulic presses and bending presses 失效
    液压机和弯压机的布置

    公开(公告)号：US4343226A

    公开(公告)日：1982-08-10

    申请号：US56254

    申请日：1979-07-10

    Applicant: A. A. Ribeiro de Almeida

    Inventor： A. A. Ribeiro de Almeida

    IPC: B21D5/02 ,  B30B15/24 ,  F15B11/22 ,  F01B25/04

    CPC classification number: F15B11/22 ,  B21D5/02 ,  B30B15/24

    Abstract: In a press with two parallel, spaced apart multiple-acting cylinders that have their respective pistons connected to end portions of a beam to which a bending or forming tool is secured, the cylinders are respectively fed from effectively separate pressure fluid sources providing equal pressures and flow rates. For synchronization of piston extension through an initial rapid advance, the chamber of each cylinder that is normally pressurized for retraction of its piston is connected in feedback relation to the pressure fluid source for the other cylinder, so that fluid expelled from a leading cylinder augments the fluid supply to the lagging one. The system further comprises a pair of sensors, one for each beam end, and a synchronizing bleed-off valve for each sensor. During the working portion of the extension stroke each sensor responds to the relative position of its beam end to impress control signals upon its associated synchronizing valve whereby fluid being charged into the cylinder at its beam end is bled off at the rate necessary to maintain exact piston synchronization; and at the end of the extension stroke the sensors cause full opening of both synchronizing valves for accurate stopping of the beam.

    Abstract translation: 在具有两个平行，间隔开的多作用缸的压力机中，其各自的活塞连接到固定有弯曲或成形工具的梁的端部，气缸分别从提供相等压力的有效分离的压力流体源进给， 流量。 为了通过初始快速前进同步活塞延伸，通常被加压用于其活塞缩回的每个气缸的腔室与另一个气缸的压力流体源以反馈关系连接，使得从前导气缸排出的流体增大了 流体供应滞后。 该系统还包括一对传感器，每个传感器用于每个梁端，以及用于每个传感器的同步泄放阀。 在延伸行程的工作部分期间，每个传感器响应其梁端的相对位置以在其相关联的同步阀上施加控制信号，由此在其梁端被充入气缸的流体以保持精确活塞所需的速率被排出 同步; 并且在延伸行程结束时，传感器引起两个同步阀的完全打开以精确地停止梁。

    Fluid arrangement
    52.
    发明授权
    Fluid arrangement 失效
    流体排列

    公开(公告)号：US4230019A

    公开(公告)日：1980-10-28

    申请号：US959781

    申请日：1978-11-13

    Applicant: Luis M. Castejon Castan

    Inventor： Luis M. Castejon Castan

    IPC: B25D9/14 ,  E21C20060101 ,  F01L25/06 ,  F15B20060101 ,  F01B7/18 ,  F01B11/02 ,  F01B25/04 ,  F01L25/04

    CPC classification number: B25D9/145 ,  B25D9/265 ,  F01L25/066

    Abstract: A fluid arrangement for the alternating operation of an apparatus includes a working cylinder with a working piston endowed with an alternating movement and a control cylinder with an alternatingly moving control piston. Each of the cylinders has for the respective piston a driving chamber which is alternately connected to a supply source of fluid under pressure and to a discharge opening for the fluid through a distributor, and a return chamber permanently connected to the supply source of fluid under pressure. The distributor connected to the driving chamber in the working cylinder is the control cylinder, and the distributor connected to the driving chamber in the control cylinder is the working chamber.

    Abstract translation: 用于交替操作设备的流体装置包括具有赋予交替运动的工作活塞的工作缸和具有交替移动的控制活塞的控制缸。 每个气缸具有用于相应活塞的驱动室，该驱动室交替地连接到压力下的流体供应源，并且通过分配器连接到用于流体的排放开口，以及在压力下永久连接到流体供应源的返回室 。 连接到工作缸中的驱动室的分配器是控制缸，并且连接到控制缸中的驱动室的分配器是工作室。

    Tubular push rod means for servomotor
    53.
    发明授权
    Tubular push rod means for servomotor 失效
    管状推杆用于伺服电机

    公开(公告)号：US3831489A

    公开(公告)日：1974-08-27

    申请号：US30625672

    申请日：1972-11-13

    Applicant: BENDIX CORP

    Inventor： WOO J

    IPC: B60T13/56 ,  B60T13/52 ,  F01B25/04 ,  F15B9/10

    CPC classification number: B60T13/52

    Abstract: A control valve for a servomotor wherein vacuum, air at atmospheric pressure and air above atmospheric pressure are sequentially communicated to a rear chamber of the servomotor to create an operational pressure differential across a movable wall with vacuum in a front chamber to develop an input force to meet an operational output condition.

    Abstract translation: 一种用于伺服电动机的控制阀，其中真空，大气压下的空气和高于大气压的空气依次连接到伺服电动机的后室，以在前室中的真空下跨越可移动壁产生操作压差，以产生输入力 满足运行输出条件。

    Compensated series hydraulic system
    54.
    发明授权
    Compensated series hydraulic system 失效
    补偿系列液压系统

    公开(公告)号：US3805530A

    公开(公告)日：1974-04-23

    申请号：US16717071

    申请日：1971-07-29

    Applicant: PACIFIC PRESS & SHEAR CORP

    Inventor： RICHARDSON R

    IPC: B30B15/24 ,  F15B11/22 ,  F15B7/00 ,  F01B25/04

    CPC classification number: F15B11/22 ,  B30B15/24 ,  Y10T83/8837 ,  Y10T83/8864 ,  Y10T83/8867

    Abstract: In a series hydraulic system involving a master hydraulic motor and a slave hydraulic motor in series, a pump means responsive to hydraulic pressure on the input side of the master hydraulic motor, is utilized to pump into that portion of the system between the master piston and the slave piston, a small amount of hydraulic fluid just sufficient to compensate for loss of volume in that portion of the system attributable to compressibility of the hydraulic fluid and expansibility of the associated system components.

    Abstract translation: 在包括主液压马达和副液压马达串联的串联液压系统中，利用响应于主液压马达的输入侧的液压的泵装置泵送到主活塞和主液压马达的系统的那部分 从动活塞，少量液压油刚刚足以补偿由于液压油的可压缩性引起的系统部分的体积损失和相关系统部件的可扩展性。

    Fastener driving tool
    55.
    发明授权
    Fastener driving tool 失效
    紧固件驱动工具

    公开(公告)号：US3638532A

    公开(公告)日：1972-02-01

    申请号：US3638532D

    申请日：1969-06-30

    Applicant: FASTENER CORP

    Inventor： NOVAK RAYMOND F

    IPC: B25C1/04 ,  F01B25/04 ,  F01L21/04 ,  F01L25/06

    CPC classification number: B25C1/047 ,  B25C1/041

    Abstract: There is provided a fastener driving tool having a control valve arrangement including a trigger valve, a cycling valve and a safety valve. The cycling valve is adapted to repetitively cycle the driving piston of the fastener driving tool through power and return strokes or to provide for single-cycling of the piston through a drive and return stroke in response to the position of the trigger. In addition there is provided an arrangement wherein the operation of the piston is arrested when the bumper cushioning the power stroke of the piston is excessively worn.

    Abstract translation: 提供了一种紧固件驱动工具，其具有包括触发阀，循环阀和安全阀的控制阀装置。 循环阀适于通过功率和返回行程重复地循环紧固件驱动工具的驱动活塞，或者响应于触发器的位置，通过驱动和返回行程提供活塞的单次循环。 此外，提供一种布置，其中当缓冲活塞的动力冲程的缓冲器过度磨损时，活塞的操作被停止。

    Hydraulic control system for crosser machine
    56.
    发明授权
    Hydraulic control system for crosser machine 失效
    横摇机液压控制系统

    公开(公告)号：US3636817A

    公开(公告)日：1972-01-25

    申请号：US3636817D

    申请日：1969-08-14

    Applicant: STAR TEXTILES & RESEARCH INC

    Inventor： SHAPIRO SUMNER

    IPC: D01G15/56 ,  D01G25/00 ,  F01B25/04 ,  F01B31/12 ,  F15B13/044

    CPC classification number: D01G25/00 ,  D01G15/56

    Abstract: An improved crosser machine is provided including a continuous apron driven by two spaced-apart reciprocating arms that are adapted to move together through the action of separate hydraulic cylinders. The crosser includes a control mechanism for maintaining the alignment of the apron including valve means adapted to bleed small quantities of hydraulic fluid from the hydraulic lines as required to bring the arms into alignment in the event one arm leads the other, and sensing means to determine the relative positions of the arms and to control the valve means. The crosser serves to lay alternate layers of a web back and forth over itself to build up a thickness of the web material.

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