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    Die cylinder assembly
    41.
    发明授权
    Die cylinder assembly 失效
    模具缸组件

    公开(公告)号：US4765227A

    公开(公告)日：1988-08-23

    申请号：US382939

    申请日：1982-05-28

    Applicant: Les G. Balazs ,  Anthony J. Cydzik, Jr.

    Inventor： Les G. Balazs ,  Anthony J. Cydzik, Jr.

    IPC: B21D24/02 ,  B21D24/14 ,  B30B15/02 ,  F16F9/02 ,  F16F9/36 ,  F16J15/32 ,  F15B15/17

    CPC classification number: F16J15/3232 ,  B21D24/02 ,  B21D24/14 ,  F16F9/0209 ,  F16F9/36 ,  Y10T137/7773

    Abstract: A die cylinder assembly is designed for use in an environment which has contaminants outside the assembly. The die cylinder assembly includes a piston disposed in a cylinder and having an outer end surface. The piston is moved in one direction by forces applied to the outer end surface of the piston. The piston is moved in an opposite direction by a working fluid pressure in a head end chamber of the cylinder. The cylinder includes a rod end variable volume chamber which is connected in fluid communication, through a first passage in the piston rod, with a third chamber located in the piston rod. The fluid pressure in the rod end chamber is always maintained at least as great as ambient fluid pressure to prevent contaminants from entering the rod end chamber. A check valve in a second passage admits outside air to the third chamber when fluid pressure in the third chamber drops below ambient pressure. A relief valve vents the third chamber if fluid pressure therein becomes too high. The assembly has an improved piston-cylinder seal for preventing fluid flow between the rod end chamber and the outside even when the piston rod is tilted relative to the cylinder.

    Abstract translation: 模具缸组件设计用于在组件外部具有污染物的环境中。 模具缸组件包括设置在气缸中并具有外端表面的活塞。 活塞通过施加到活塞的外端表面的力沿一个方向移动。 活塞通过缸体的头端室中的工作流体压力沿相反方向移动。 气缸包括杆端可变容积室，其通过活塞杆中的第一通道与位于活塞杆中的第三室流体连通地连接。 杆端室中的流体压力总是保持至少与环境流体压力一样大，以防止污染物进入杆端室。 当第三室中的流体压力低于环境压力时，第二通道中的止回阀允许外部空气流入第三室。 如果其中的流体压力变得太高，则安全阀将第三室排出。 该组件具有改进的活塞 - 气缸密封件，用于在活塞杆相对于气缸倾斜时防止流体在杆端室和外部流动。

    Pneumatic die cushion
    42.
    发明授权
    Pneumatic die cushion 失效
    气动模座

    公开(公告)号：US4732033A

    公开(公告)日：1988-03-22

    申请号：US912332

    申请日：1986-09-26

    Applicant: Kenneth L. Smedberg ,  Robert J. Kotynski ,  George J. Bozich

    Inventor： Kenneth L. Smedberg ,  Robert J. Kotynski ,  George J. Bozich

    IPC: B21D24/02

    CPC classification number: B21D24/02

    Abstract: A pneumatic die cushion for use in a power press is the subject matter of this invention. The die cushion includes a pair of spaced substantially parallel plates with resilient bellows for resiliently spacing apart the plates. A plurality of limiter pins are releasably secured to one of said spaced plates. Each of said limiter pins has an end threadedly mounted in one of said plates. Each of said limiter pins is movable relative to the other of said plates. A stop mechanism is mounted on the other end of each limiter pin for limiting movement of the first mentioned plate away from the other plate. A limit sleeve is mounted on each of the limiter pins to control the minimum spacing between the plates. A quick change adaptor plate is fixed to one end of the bellows. The quick change adaptor plate has a pair of opposed ears. A mechanism is provided to releasably secure the ears of the quick change adaptor plate to said one of said plates to secure said one end of the bellows to said one of said plates. A second quick change adaptor plate is fixed to the other end of the bellows. The second quick change adaptor plate also has a pair of second opposed ears. A second mechanism releasably secures the second ears of the second quick change adaptor plate to the other of the spaced plates to secure the other end of the bellows to the other of the spaced plates.

    Abstract translation: 用于动力压力机的气动模座是本发明的主题。 模具衬垫包括一对具有弹性波纹管的间隔开的基本上平行的板，用于弹性地间隔开板。 多个限制销可释放地固定到所述间隔开的板之一。 每个所述限制器销具有螺纹安装在所述板之一中的一端。 每个所述限制器销可相对于所述板中的另一个移动。 止动机构安装在每个限制销的另一端，用于限制第一提到的板远离另一个板的运动。 限位套管安装在每个限位器销上，以控制板间的最小间距。 快速更换适配器板固定在波纹管的一端。 快换接头板有一对相对的耳朵。 提供了一种机构，用于将快速更换适配器板的耳部可释放地固定到所述板中的一个，以将波纹管的所述一端固定到所述板中的一个。 第二个快速更换适配器板固定在波纹管的另一端。 第二快速更换适配器板还具有一对第二相对的耳朵。 第二机构将第二快速更换适配器板的第二耳可释放地固定到另一个间隔开的板，以将波纹管的另一端固定到另一个隔开的板。

    Self-lubricating die cylinder
    43.
    发明授权
    Self-lubricating die cylinder 失效
    自润滑模具缸

    公开(公告)号：US4691902A

    公开(公告)日：1987-09-08

    申请号：US723036

    申请日：1985-04-15

    Applicant: Paul M. Kadis

    Inventor： Paul M. Kadis

    IPC: B21D24/02 ,  F16F9/32 ,  F16N7/30 ,  F16N7/36 ,  F16F9/00

    CPC classification number: F16N7/36 ,  B21D24/02 ,  F16F9/3278 ,  F16N7/30

    Abstract: A self-lubricating die cylinder assembly is provided containing a cylinder, piston, expansion reservoir and working chamber. A lubricating oil recirculation means is provided to transport oil between the working chamber and the expansion reservoir during each of the piston strokes. A flow restrictor is provided to create a pressure differential between the two chambers during movement of the piston thus creating a jet mixture of compressible working fluid and lubricating oil spraying onto the walls of the cylinder.

    Abstract translation: 提供了一种自润滑模具缸组件，其包含气缸，活塞，膨胀容器和工作室。 提供润滑油再循环装置以在每个活塞冲程期间在工作室和膨胀容器之间输送油。 设置限流器以在活塞运动期间在两个室之间产生压差，从而产生可压缩工作流体的喷射混合物和喷射到气缸壁上的润滑油。

    Cushion mounting in punch press
    44.
    发明授权
    Cushion mounting in punch press 失效
    冲孔机中的垫圈安装

    公开(公告)号：US3580558A

    公开(公告)日：1971-05-25

    申请号：US3580558D

    申请日：1969-01-08

    Applicant: BLISS CO

    Inventor： HELRIGEL ROBERT A ,  BROWNELL JAMES R ,  WARD RODERICK K ,  KEITHLEY HARRY E

    IPC: B21D24/02

    CPC classification number: B21D24/02

    Abstract: A machine press bed assembly including an air cushion seated in the press bed, air input means integral with the press bed floor, aperture means in an end wall of the cushion accommodating said air input means, and holddown means penetrating the press bed sides engaging the cushion, the cushion being removable from said press bed by disengaging the holddown means.

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