公开(公告)号：US2309944A

公开(公告)日：1943-02-02

申请号：US39916941

申请日：1941-06-21

Applicant: HYDRAULIC DEV CORP INC

Inventor： FLOWERS PAUL E

IPC: B30B15/24

CPC classification number: B30B15/24

公开(公告)号：US2286798A

公开(公告)日：1942-06-16

申请号：US33559640

申请日：1940-05-16

Applicant: HYDRAULIC DEV CORP INC

Inventor： FLOWERS PAUL E

IPC: B30B15/24

CPC classification number: B30B15/245

公开(公告)号：US2211692A

公开(公告)日：1940-08-13

申请号：US22679338

申请日：1938-08-25

Applicant: OILGEAR CO

Inventor： WALTER FERRIS

IPC: B30B15/24

CPC classification number: B30B15/24

公开(公告)号：US2148543A

公开(公告)日：1939-02-28

申请号：US4673235

申请日：1935-10-25

Applicant: BALDWIN SOUTHWARK CORP

Inventor： DINZL RICHARD W

IPC: B30B15/24

CPC classification number: B30B15/24

公开(公告)号：US20250065586A1

公开(公告)日：2025-02-27

申请号：US18749858

申请日：2024-06-21

Applicant: MITSUBISHI HEAVY INDUSTRIES, LTD.

Inventor： Tomohiro MURAI

IPC: B30B15/16 ,  B30B15/24 ,  B64F5/40

Abstract: A pressing device includes: a plurality of pressing portions each configured to generate a pressing force toward a treatment target surface facing in a first direction and arranged in a direction intersecting the first direction; and an interlocking mechanism configured to interlock the plurality of pressing portions and control a pressing amount of each of the pressing portions in the first direction. For example, each of the pressing portions is a fluid device configured to be deformed by a pressure of an internal fluid to generate the pressing force in the first direction, and the interlocking mechanism includes a fluid supply portion configured to supply a fluid to a plurality of the fluid devices and a plurality of speed control valves provided for the respective plurality of the fluid devices and configured to adjust a supply rate of the fluid to each of the fluid devices.

公开(公告)号：US10363594B2

公开(公告)日：2019-07-30

申请号：US15368315

申请日：2016-12-02

Applicant: AIDA ENGINEERING, LTD.

Inventor： Yasuyuki Kohno ,  Tadahiro Kondo ,  Ryosho Iwamura

IPC: B21D24/02 ,  B21D24/14 ,  B30B15/24 ,  B21D24/08 ,  B21D22/22

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.

公开(公告)号：US10322443B2

公开(公告)日：2019-06-18

申请号：US14835941

申请日：2015-08-26

Applicant: BENTELER AUTOMOBILTECHNIK GMBH

Inventor： Georg Frost ,  Oliver Luetkemeyer ,  Josef Koester

IPC: B21D24/02 ,  B21D37/04 ,  B30B15/06 ,  B30B15/24 ,  C21D1/673

Abstract: The present invention relates to a press-forming tool having a top die and a bottom die, which can be moved toward one another, forming a forming cavity between the top die and the bottom die when the press-forming tool is closed, wherein a die clamping plate is arranged on a press ram and/or on a press table, wherein a top die or bottom die, which can be moved relative to the die clamping plate, is supported on said plate while incorporating at least one resilient adjusting element.

公开(公告)号：US20180264765A1

公开(公告)日：2018-09-20

申请号：US15542598

申请日：2015-12-15

Applicant: PERSICO S.p.A.

Inventor： Paolo AMBROSINI

IPC: B30B15/24 ,  B29C43/58 ,  B29C43/02 ,  B30B1/32 ,  B30B15/00

CPC classification number: B30B15/245 ,  B29C43/02 ,  B29C43/58 ,  B29C70/46 ,  B29C2043/3283 ,  B29C2043/5833 ,  B29K2105/255 ,  B30B1/323 ,  B30B15/007

Abstract: A press (1) is described, for molding an ingot made of thermoplastic or thermosetting material, comprising a basement (10) integral with risers (20), a first and a second plane (30, 40) relatively sliding with respect to the risers (20), by means of first and second hydraulic cylinders (50, 60), respectively adapted to allow opening and closing a mold formed of a first half-mold fastened to the first plane (30) and a second half-mold fastened to the second plane (40), comprising actuators (70) adapted to exert a force whose direction is equal to or opposite with respect to the direction of the force adapted to allow opening or closing the mold; the first plane (30) connected to the basement (10) is moved by means of the first hydraulic cylinders (50) and of the actuators (70), while the second plane (40) is blocked by means of a blocking apparatus (80).

公开(公告)号：US10065386B2

公开(公告)日：2018-09-04

申请号：US15496829

申请日：2017-04-25

Applicant: AIDA ENGINEERING, LTD.

Inventor： Yasuyuki Kohno

IPC: B30B15/14 ,  B30B1/24 ,  B30B1/18 ,  B30B1/26 ,  B30B15/24

Abstract: A slide motion control apparatus for a mechanical press comprising: a slide which is disposed so as to be relatively vertically movable with respect to a driven body to which a drive force is transmitted through a con rod of the mechanical press; a relative position commander that outputs a relative position command indicating a relative position of the slide with respect to the driven body; a relative position detector that detects a relative position of the slide with respect to the driven body, and outputs a relative position detecting signal indicating the detected relative position; a servomotor; a drive mechanism that relatively moves the slide with respect to the driven body by a drive force of the servomotor; and a controller that controls the servomotor based on a relative position command signal output from the relative position commander, and the relative position detecting signal output from the relative position detector.

公开(公告)号：US09889622B2

公开(公告)日：2018-02-13

申请号：US14066912

申请日：2013-10-30

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Xiangjun Tian ,  Zhongyuan Sun ,  Yifang Chu

IPC: B30B15/14 ,  B30B1/18 ,  B30B15/06 ,  B30B15/16 ,  B30B15/24

CPC classification number: B30B15/148 ,  B30B1/181 ,  B30B15/062 ,  B30B15/168 ,  B30B15/24

Abstract: A pressing apparatus is disclosed. The pressing apparatus includes: a static pressing plate; a movable pressing plate opposing the static pressing plate and including a plurality of movable press-blocks; a pressure sensor provided in each respective movable press-blocks; a plurality of drive units provided corresponding to the plurality of movable press-blocks, each drive unit being connected with one movable press-block for driving the corresponding movable press-block; a control unit electrically connected with each drive unit and each pressure sensor, the control unit being configured to compare the detected pressure value from each pressure sensor with a predefined pressure value, and adjust the pressure value between the corresponding movable press-block and the static pressing plate by means of the corresponding drive unit based on the comparison result.