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公开(公告)号：US5307665A
公开(公告)日：1994-05-03
申请号：US908453
申请日：1992-07-10
申请人： Keith O. Stuart
发明人： Keith O. Stuart
摘要： A linear electromagnetic actuator has its core mounted to a can body forming apparatus and its coil attached to re-draw sleeve of such apparatus. The actuator provides for the axial movement of the re-draw sleeve between its fully retracted position and its fully extended position. The re-draw sleeve and the coil are coaxially mounted to each other so that the force exerted on the re-draw sleeve is also coaxial. Once the re-draw sleeve is in its fully extended position, an electromagnet is turned on so that the re-draw sleeve exerts the requisite force on the can material preform. The electromagnet is mounted coaxially about the re-draw sleeve and exerts its force on a magnetic material ring mounted to the re-draw sleeve to hold the re-draw sleeve against the can material preform.
摘要翻译： 线性电磁致动器的芯部安装到罐体成形装置上，其线圈连接到这种装置的重新拉紧套筒上。 致动器提供重拉套在其完全缩回位置与其完全伸出位置之间的轴向运动。 再拉伸套筒和线圈彼此同轴地安装，使得施加在再拉伸套筒上的力也是同轴的。 一旦重新拉伸套筒处于其完全伸出的位置，电磁体就被接通，使得再拉伸套筒对罐坯料预成型件施加必要的力。 电磁体与再拉伸套筒同轴地安装，并且将其力施加在安装到再拉伸套筒上的磁性材料环上，以将再拉伸套筒保持抵靠罐体材料预制件。
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公开(公告)号：US4698991A
公开(公告)日：1987-10-13
申请号：US766359
申请日：1985-08-16
申请人： Kazunari Kirii , Mamoru Toyoda , Masatoki Utsumi , Akio Asai
发明人： Kazunari Kirii , Mamoru Toyoda , Masatoki Utsumi , Akio Asai
CPC分类号： B30B15/14 , B30B15/284
摘要： A method of and apparatus for controlling forming press conditions aids in maintaining stability in a mechanical double action press forming provided with an upper die (inner) and an outer ram (outer). These dies are driven independently wherein press conditions related to the forming process, such as a hydraulic pressure and pneumatic pressure, are automatically corrected by feedback so as to be maintained to preset values corresponding to the change of the inner stroke during the forming process. Abnormal operation can also be detected and corrected immediately by detecting the change of the press conditions during the forming process continuously or intermittently.
摘要翻译： 用于控制成形冲压条件的方法和设备有助于保持设置有上模（内）和外压头（外）的机械双作用压力成形中的稳定性。 这些模具独立地驱动，其中与成形过程相关的压力条件，例如液压和气动压力，通过反馈自动校正，以便在成形过程中保持与内部冲程变化相对应的预设值。 也可以通过连续地或间歇地检测成形过程中的冲压条件的变化，立即检测和校正异常操作。
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公开(公告)号：US4125009A
公开(公告)日：1978-11-14
申请号：US791859
申请日：1977-04-28
申请人： James I. Byrd , Elton G. Kaminski
发明人： James I. Byrd , Elton G. Kaminski
CPC分类号： B21D24/14
摘要： Apparatus for drawing, or blanking and drawing, a flat metallic piece into a cup shape. A blanking punch, blanking die, draw die, movable stripper and a spacer are mounted on the stationary bed of a press. A pressure pad and draw punch are carried by the ram of a press. The pressure pad is positioned to contact first the blanking punch, then to contact the movable stripper and push it solidly against the spacer. As the ram continues its downward movement, the pressure pad collapses with respect to the ram by virtue of its connection to a piston operating in a cylinder in the ram containing controllable air pressure. The maintenance of a predetermined pressure pad-draw die gap during the draw prevents wrinkling, and the maintenance of the controlled pressure on the pressure pad prevents thinning and subsequent clipping of ears. The edge of the blank which is captured between the pressure pad and draw die is gradually pulled radially inward as the die approaches the bottom of its stroke and the wrinkling and thinning and clipping of ears of the blank which would take place during this pulling is prevented. On the upstroke of the ram air is injected into the draw punch to assist in stripping the finished cup from the punch, and the blanking punch and mounting plate are raised by springs, and the movable stripper raises the scrap upward for removal.
摘要翻译： 用于将扁平金属片拉成或冲裁和拉制成杯形的装置。 在冲压机的固定床上安装一个冲裁冲头，冲裁模具，拉伸模具，可移动剥离器和间隔件。 压力垫和拉伸冲头由压机的压头承载。 压力垫定位成首先与冲裁冲头接触，然后接触可移动的剥离器并将其牢固地推靠在间隔件上。 当压头继续向下运动时，由于压力垫与活塞上的活塞连接，压力垫相对于压头而相对于活塞内的活塞相互连接，所述活塞具有可控空气压力。 在牵引期间保持预定的压力拉伸模具间隙防止起皱，并且保持压力垫上的受控压力防止变薄并随后限制耳朵。 当模具接近其行程的底部时，捕获在压力垫和拉伸模具之间的坯料的边缘被逐渐拉向内部，并且防止在该拉伸过程中发生的坯料的起皱和变薄和夹紧 。 在冲压空气的冲程中注入拉力冲头，以帮助从冲头中取出成品杯，并且冲头和安装板由弹簧升高，可移动剥离器将废料向上提升以便拆卸。
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公开(公告)号：US3670554A
公开(公告)日：1972-06-20
申请号：US3670554D
申请日：1970-08-26
发明人： KIENZLER WOLFGANG , BURGDORF MARTEN
CPC分类号： B21D24/16
摘要： A hollow blank is slipped on a punch to be formed in cooperation with a die. Prior to engagement with the die, the blank is held and retained on the punch in a manner which does not disturb the forming process.
摘要翻译： 中空坯料与模具配合形成冲头。 在与模具接合之前，坯料以不影响成形过程的方式保持并保持在冲头上。
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公开(公告)号：US11878334B2
公开(公告)日：2024-01-23
申请号：US17423786
申请日：2020-01-16
发明人： Ryuichi Nishimura , Toshiya Suzuki
摘要： A method of manufacturing a press-formed product includes: capturing the amount of warp in a sheet to be pressed separately for each sheet; and using a die 6, a punch 7, and a movable mold part to press-form the sheet into a press-formed product. During press-forming, the initial position of the movable mold part 9 relative to the die 6 or punch 7 is controlled depending on the amount of warp in the sheet.
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公开(公告)号：US20220288665A1
公开(公告)日：2022-09-15
申请号：US17831718
申请日：2022-06-03
发明人： Masayuki Ishizuka , Norieda Ueno
IPC分类号： B21D24/10 , B21D22/30 , B23K26/359
摘要： An information providing device provides information to a formed product formed by a forming device including a die for forming a metal material, in which the information is provided to the formed product after being formed by the forming device, and the information is information from which at least forming conditions of the formed product are acquirable. The information providing device includes an information acquisition unit that acquires the forming conditions.
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公开(公告)号：US20210229156A1
公开(公告)日：2021-07-29
申请号：US17053423
申请日：2019-05-13
发明人： Kazuki SAKAMOTO , Kenichi WATANABE , Dongyong SHI
摘要： A method for manufacturing a press-molded article includes: preparing a patchwork blank in which a thickened portion is formed by welding patchwork to basework; bending only the thickened portion of the patchwork blank; and bending a portion other than the thickened portion in a step different from bending of the thickened portion.
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38.发明授权公开(公告)号：US10913498B2
公开(公告)日：2021-02-09
申请号：US15379613
申请日：2016-12-15
IPC分类号： B32B3/28 , B32B1/00 , B32B7/12 , B32B15/082 , B32B15/085 , B32B15/18 , B62D25/02 , B21D22/20 , B32B38/12 , B29C43/18 , B21D22/02 , B21D24/10 , B29C51/08
摘要： A method for painting a complex or compound curved three-dimensional surface of a portion of an article. The method comprises providing a paint film; providing sheet metal having opposite major surfaces; laminating the paint film onto a major surface of the sheet metal to form a painted sheet metal laminate comprising a first portion and a second portion; permanently deforming the first portion of the painted sheet metal laminate into a formed portion of the article having a complex or compound curved three-dimensional shape; applying an initial force for securing the second portion of the painted sheet metal laminate during an initial stage of said permanently deforming step; and applying a later force for securing the second portion of the painted sheet metal laminate during a later stage of said permanently deforming step. The later applied force is greater than the initially applied force.
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公开(公告)号：US20190084026A1
公开(公告)日：2019-03-21
申请号：US16106211
申请日：2018-08-21
摘要： The present disclosure is applied to a press molding method for press-molding a workpiece by a press die composed of an upper die and a lower die while holding the workpiece by a die cushion. The press molding method according to the present disclosure includes pressing process, in which a press position at which the workpiece is pressed by the press die is gradually lowered while repeatedly pressing and releasing the workpiece by the press die a plurality of times until the press position reaches a bottom dead center, wherein in the pressing process, a holding force for holding the workpiece by the die cushion is controlled separately from a press molding force for press-molding the workpiece by the press die.
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公开(公告)号：US09669446B2
公开(公告)日：2017-06-06
申请号：US14304312
申请日：2014-06-13
发明人： Yasuyuki Kohno , Kazufumi Tsuchida , Junji Makabe
摘要： The die cushion force setting apparatus according to an aspect of the present invention allows die cushion forces (component forces) acting on plural driving shafts to be set easily, makes it easy to apply strong or weak die cushion forces to a complex-shaped drawn part in a plane of a cushion pad, and provides a smooth die cushion force distribution. An operator manually enters a total die cushion force, axial component force of a left front hydraulic cylinder, and center-of-force position by operating an input device. Based on the information entered via the input device, the numerical computing device B1 calculates axial component forces of three hydraulic cylinders through numerical computations. The one axial component force thus entered and three axial component forces thus computed numerically are set as the axial component forces of four hydraulic cylinders.
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