公开(公告)号：US3613365A

公开(公告)日：1971-10-19

申请号：US3613365D

申请日：1970-03-25

Applicant: VERRINA SPA

Inventor： COSTA GIUSEPPE

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

CPC classification number: B30B15/245 ,  B21D5/02 ,  F15B2211/7114

Abstract: THE HYDRAULIC SYSTEM FOR A HYDRAULIC DRIVING DEVICE OF A BENDING PRESS INCLUDES TWO HYDRAULIC CONTROL CYLINDERS WHICH CO-OPERATE WITH THE UPPER JAW TO EFFECT VERTICAL RECIPROCATION OF THE UPPER JAW BETWEEN GUIDES THEREFOR. THE INVENTION PROVIDES FOR THE INCLUSION IN THE HYDRAULIC SYSTEM OF COMPENSATING CYLINDERS ASSOCIATED WITH THE CONTROL CYLINDERS AND HOUSING PISTONS HAVING OPERA-

TIVE SURFACE OF EQUAL AREA AND WHICH BY CO-OPERATION WITH THE CONTROL CYLINDERS PREVENT JAMMING OF THE UPPER JAW IN THE GUIDES DURING RECIPROCATION OF THE UPPER JAW.

公开(公告)号：US2864127A

公开(公告)日：1958-12-16

申请号：US57466156

申请日：1956-03-29

Applicant: LONZA ELECTRIC & CHEM WORKS

Inventor： FRITZ MARTI

IPC: B30B7/02 ,  B30B15/24

CPC classification number: B30B15/245 ,  B30B7/02

公开(公告)号：US2809543A

公开(公告)日：1957-10-15

申请号：US34732953

申请日：1953-04-07

Applicant: BALDWIN LIMA HAMILTON CORP

Inventor： ALEXANDER ZEITLIN

IPC: B30B15/24

CPC classification number: B30B15/245

公开(公告)号：US2753689A

公开(公告)日：1956-07-10

申请号：US33717653

申请日：1953-02-16

Applicant: UNITED ENG FOUNDRY CO

Inventor： TRUST CO FIDELITY

IPC: B30B15/24

CPC classification number: B30B15/245

公开(公告)号：US2302132A

公开(公告)日：1942-11-17

申请号：US34694640

申请日：1940-07-23

Applicant: HYDRAULIC DEV CORP INC

Inventor： MACMILLIN HOWARD F ,  FLOWERS PAUL E

IPC: B30B15/06 ,  B30B15/24

CPC classification number: B30B15/068 ,  B30B15/245 ,  Y10S425/131

公开(公告)号：US06526879B1

公开(公告)日：2003-03-04

申请号：US09445130

申请日：2000-02-29

Applicant: Donald Simson Mahoney

Inventor： Donald Simson Mahoney

IPC: B30B1524

CPC classification number: F15B11/22 ,  B30B1/34 ,  B30B15/245

Abstract: A press for fabrication of building components including: an upper platen; a lower platen; the upper platen and/or lower platen movable towards and away from the other; a first and second hydraulic device located on a base, each hydraulic device including; a cylinder; a piston located in the cylinder defining a first and a second chamber in the cylinder, the piston sealingly engaging the cylinder and movable in the cylinder; and a piston rod connected to the piston and extending through the second chamber to engage the upper or lower platen; a pump to pump hydraulic fluid into the first chamber of the first hydraulic device; and a valve in fluid communication with the first chambers of the first and second hydraulic devices to selectively withdraw hydraulic fluid from the first chamber of either or both the first and second hydraulic devices to align the upper and lower platens.

Abstract translation: 一种用于制造建筑构件的压力机，包括：上压板; 下压板 上压板和/或下压板可朝向和远离另一个移动; 位于基座上的第一和第二液压装置，每个液压装置包括： 圆筒 位于所述气缸中的活塞限定所述气缸中的第一和第二室，所述活塞密封地接合所述气缸并且可在气缸中移动; 以及活塞杆，其连接到所述活塞并延伸穿过所述第二室以接合所述上部或下部压板; 将液压流体泵送到第一液压装置的第一室中的泵; 以及与第一和第二液压装置的第一室流体连通的阀，以选择性地从第一和第二液压装置中的任一个或第二液压装置的第一室抽出液压流体，以对准上压板和下压板。

公开(公告)号：US5156782A

公开(公告)日：1992-10-20

申请号：US769820

申请日：1991-10-02

Applicant: Ronald Ballantyne

Inventor： Ronald Ballantyne

IPC: B30B15/00 ,  B30B15/24

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。

公开(公告)号：US4923383A

公开(公告)日：1990-05-08

申请号：US289037

申请日：1988-12-23

Applicant: Masanobu Kurumaji ,  Naoki Takeuchi ,  Tutomu Sano ,  Kazuyuki Kajiyama ,  Hiroaki Kondo ,  Etujiro Imanishi

Inventor： Masanobu Kurumaji ,  Naoki Takeuchi ,  Tutomu Sano ,  Kazuyuki Kajiyama ,  Hiroaki Kondo ,  Etujiro Imanishi

IPC: B29C43/58 ,  B30B15/24

CPC classification number: B30B15/245 ,  B29C43/58

Abstract: A mold aligning method and device for a compression molding machine which includes a bed, a plurality of uprights standing upright on the bed, a crown block joined to the tops of the uprights, a slide block guided for vertical sliding movement by the uprights, and a hydraulic cylinder actuator mounted on the crown block to drive the slide block for vertical sliding movement, for maintaining an upper mold attached to the lower surface of the slide block in parallel to a mating lower mold during a compression-molding operation. The mold aligning device includes a plurality of mold position adjusting cylinder actuators disposed on the bed, a plurality of position detectors associated respectively with the mold position adjusting cylinder actuators to detect the strokes of the latter, a hydraulic source for driving the mold position adjusting cylinder actuators, and a control unit for controlling the strokes of the piston rods of the mold position adjusting cylinder actuators with reference to the zero points of the piston rods of the mold position adjusting cylinder actuators determined beforehand. The zero points are determined by placing the upper mold in close contact with the lower mold and extending the piston rods of the mold position adjusting cylinder actuators so that the piston rods are pressed against the lower surface of the slide block. The strokes of the piston rods are controlled during a compression-molding operation so that the upper mold is maintained precisely in parallel with the lower mold.

Abstract translation: 一种用于压缩成型机的模具对准方法和装置，其包括床，在床上竖立的多个立柱，连接到立柱顶部的冠块，由立柱引导以用于垂直滑动运动的滑块;以及 安装在所述冠块上的液压缸致动器以驱动所述滑块用于垂直滑动运动，用于在压缩成型操作期间将与附接到所述滑块的下表面平行的上模保持在配合的下模上。 模具对准装置包括设置在床上的多个模具位置调节气缸致动器，分别与模具位置调节气缸致动器相关联的多个位置检测器，用于检测后者的冲程，用于驱动模具位置调节缸的液压源 致动器，以及控制单元，用于参照预先确定的模具位置调节气缸致动器的活塞杆的零点来控制模具位置调节气缸致动器的活塞杆的冲程。 通过将上模与下模紧密接触并延伸模具位置调节气缸致动器的活塞杆来确定零点，使得活塞杆被压靠在滑块的下表面上。 在压缩模制操作期间控制活塞杆的冲程，使得上模具精确地保持与下模具平行。

公开(公告)号：US4921419A

公开(公告)日：1990-05-01

申请号：US310458

申请日：1989-02-15

Applicant: Richard Brussel

Inventor： Richard Brussel

IPC: B29C33/24 ,  B29C43/32 ,  B30B15/00 ,  B30B15/20 ,  B30B15/24 ,  B30B15/28

CPC classification number: B30B15/0052 ,  B30B15/245 ,  Y10S425/047

Abstract: A hydraulic press includes a press plate mounted for executing working strokes and return strokes; a hydraulic countersupport braking cylinder supported at an end zone of the working stroke for engaging the press plate at an end portion of the working stroke to cause deceleration of the press plate by the hydraulic countersupport braking cylinder; and a hydraulic shock absorber connected between the press plate and the hydraulic countersupport braking cylinder. The hydraulic shock absorber is arranged for compression from an expanded state by the press plate in an end zone of the working strokes. The hydraulic shock absorber has a shock absorber chamber containing hydraulic fluid; a throttle for setting a braking force in the shock absorber chamber to a magnitude smaller than the braking force of the hydraulic countersupport braking cylinder; and a resetting arrangement for returning the shock absorber into its expanded state.

Abstract translation: 液压机包括安装用于执行工作冲程和返回冲程的压板; 支撑在工作行程的端部区域的液压支架制动缸，用于在工作行程的端部处接合压板，以通过液压支架制动缸使压板减速; 以及连接在压板和液压支架制动缸之间的液压减震器。 液压缓冲器布置成通过压板从工作冲程的端部区域中的膨胀状态进行压缩。 液压缓冲器具有包含液压流体的减震器; 用于将减震器室中的制动力设定为小于液压支架制动缸的制动力的节气门; 以及用于使减震器返回其膨胀状态的复位装置。

公开(公告)号：US4311086A

公开(公告)日：1982-01-19

申请号：US131582

申请日：1980-03-19

Applicant: Hans Schoen

Inventor： Hans Schoen

IPC: B21D28/20 ,  B30B15/24 ,  F15B15/22

CPC classification number: B21D28/20 ,  B30B15/245 ,  Y10T83/8827

Abstract: A system for damping abrupt movement of a punch press ram at the moment of cut-breakthrough with the use of at least two damping pistons disposed within cylinders and arranged to engage the press ram before and during cut-breakthrough. The cylinders within which the damping pistons are carried are connected to a hydraulic control system which permits the pistons to yield with the ram until the instant of cut-breakthrough, whereupon the damping pistons act as rigid bodies and prevent abrupt breakthrough movement of the ram.

Abstract translation: 一种用于通过使用设置在气缸内的至少两个阻尼活塞来阻止冲压冲压机突然移动的系统，并且设置成在切断穿透之前和之间接合压力机压头。 其中承载有阻尼活塞的气缸连接到液压控制系统，该液压控制系统允许活塞与冲压器一起产生直到切断瞬间，于是阻尼活塞用作刚体并防止冲头的突然的突破运动。