序号 | 专利名 | 申请号 | 申请日 | 公开(公告)号 | 公开(公告)日 | 发明人 |
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61 | Screen wire stretching devices | US64942757 | 1957-03-29 | US2963052A | 1960-12-06 | COOK DELMER J |
62 | Stretch-straightening machine with actuating means intermediate the gripping heads | US57027756 | 1956-03-08 | US2852062A | 1958-09-16 | HUGO LORANT |
63 | Straightening mechanism | US46688054 | 1954-11-04 | US2727556A | 1955-12-20 | ALBERS HEINRICH B |
64 | Strip stretching apparatus | US43281154 | 1954-05-27 | US2714917A | 1955-08-09 | LAURENZ SIEGERIST WALTER |
65 | Means and method of producing flat surfaces | US14762537 | 1937-06-11 | US2194551A | 1940-03-26 | EDWARD HOLMAN HERBERT |
66 | STRETCHING MACHINE FOR NON-FERROUS METAL PROFILES | EP16791432.4 | 2016-06-09 | EP3307451A2 | 2018-04-18 | TURLA, Davide |
A stretching machine (1) is described for non-ferrous profiles, comprising a head (2) provided with a body (22) and a clamp (21), hydraulic cylinders (3), at least one pump (4), at least one electric motor (5), a liquid tank (6), at least one electro-distributor (7) and a hydraulic circuit (8). Said stretching machine comprises at least one internal gear pump (4). | ||||||
67 | VERFAHREN ZUR MATERIALFLUSSSTEUERUNG BEIM TIEFZIEHEN EINES WERKSTÜCKS UND TIEFZIEHVORRICHTUNG | EP09730365.5 | 2009-03-31 | EP2259883A1 | 2010-12-15 | FLEHMIG, Thomas; GÖHLER, Klaus; SAVVAS, Konstantinos |
The invention relates to a method for controlling the flow of material when deep-drawing a workpiece. The aim of the invention is to devise a method which better utilizes the drawing capacity of a workpiece and produces a more accurate shape, particularly at the bottom of the drawn part. Said aim is achieved by a method in which the deep-drawing process is performed incrementally and in which at least one bead is incorporated into the flange zone of the workpiece prior to each increment of the deep-drawing process, thus allowing the bottom to be more accurately shaped while preventing material from accumulating in the flange zone. The invention further relates to a deep-drawing device (2). | ||||||
68 | METHOD AND APPARATUS FOR IN-SITU LEVELING OF PROGRESSIVELY FORMED SHEET METAL | EP04702989.7 | 2004-01-16 | EP1585608B1 | 2006-09-27 | ALLEN, Jeffrey, Peter |
A stretch-forming press (10) for stamping continuously fed sheet metal (32) includes a ram (14), a base member (44), and a feed mechanism (20) configured to advance a strip of sheet metal through the stretch-forming press. A forming station (58) has a die (59) configured to form a desired pattern in the strip of sheet metal. A leveling station (86) has a pair of opposed jaws (88, 90) slidably received in corresponding recesses (92, 102) of the stretch-forming press, with the jaws oriented at an angle with respect to a direction of travel for the strip of sheet metal as it passes through the leveling station (86). | ||||||
69 | METHOD AND APPARATUS FOR IN-SITU LEVELING OF PROGRESSIVELY FORMED SHEET METAL | EP04702989.7 | 2004-01-16 | EP1585608A1 | 2005-10-19 | ALLEN, Jeffrey, Peter |
A stretch-forming press (10) for stamping continuously fed sheet metal (32) includes a ram (14), a base member (44), and a feed mechanism (20) configured to advance a strip of sheet metal through the stretch-forming press. A forming station (58) has a die (59) configured to form a desired pattern in the strip of sheet metal. A leveling station (86) has a pair of opposed jaws (88, 90) slidably received in corresponding recesses (92, 102) of the stretch-forming press, with the jaws oriented at an angle with respect to a direction of travel for the strip of sheet metal as it passes through the leveling station (86). | ||||||
70 | Method for removing strain from press-formed workpiece, and forming press | EP03002743.7 | 2003-02-06 | EP1340557A3 | 2003-12-10 | Yoshioka, Naoki; Kusunoki, Kenichi; Yagami, Yuichi; Wada, Mikio; Takahashi, Tsuyoshi |
In a forming press (100), a blank is pressed formed into a press-formed workpiece by means of an upper die (21) and a lower die (11), while a peripheral edge portion of the blank is clamped by means of a die and a blank holder insert of the forming press. Subsequently, a central portion of the press-formed workpiece is partially held by means of the upper die (21) and the lower die (11) so as to draw a peripheral portion of the press-formed workpiece away from the central portion thereof, thereby removing strain from the press-formed workpiece. |
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71 | Verfahren zum Herstellen von Blechtafeln, insbesondere grossformatigen Blechtafeln, und Vorrichtung | EP95110204.5 | 1995-06-30 | EP0707905B1 | 1997-11-26 | Noé, Oskar; Noé, Rolf; Noé, Andreas |
72 | Verfahren zum Herstellen von Blechtafeln, insbesondere grossformatigen Blechtafeln, und Vorrichtung | EP95110204.5 | 1995-06-30 | EP0707905A1 | 1996-04-24 | Noé, Oskar; Noé, Rolf; Noé, Andreas |
Es handelt sich um ein Verfahren zum Herstellen von großformatigen Blechtafeln aus gewalzten Stahl- oder Metallbändern, wonach das betreffende Band im Wege einer kontinuierlichen Behandlung zur Reduzierung von Spannungen wärmebehandelt, dann streckbiegegerichtet, dann im Wege einer diskontinuierlichen Behandlung zuggereckt und auf vorgegebene Tafelformate geschnitten wird. |
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73 | Dispositif de mise en tension d'une plaque mince | EP84401816.8 | 1984-09-13 | EP0140739B1 | 1988-01-27 | Aubert, Jean-Jacques; Basset, Alain; Bechevet, Bernard; Roulin, Claude |
74 | Dispositif de mise en tension d'une plaque mince | EP84401816.8 | 1984-09-13 | EP0140739A1 | 1985-05-08 | Aubert, Jean-Jacques; Basset, Alain; Bechevet, Bernard; Roulin, Claude |
Il comprend au moins deux ensembles (6) comprenant chacun des moyens (18) de traction sur une extrémité (8) de la plaque (5) et des moyens (19) de rotation de l'extrémité autour d'un axe (A) perpendiculaire au plan de la plaque. Lorsque cet axe ne passe pas par le milieu de l'extrémité, on ajoute avantageusement à l'ensemble des moyens de translation transverse de l'extrémité. Les ensembles sont disposés de façon que la plaque soit en équilibre sous l'effet des tractions. Application à la mise en tension d'un résistor plan pour l'élaboration de matéraux. |
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75 | Press forming method | US14443744 | 2013-10-28 | US09937546B2 | 2018-04-10 | Masaki Urabe |
A press forming method of press forming a formed part including a top portion having a concave outer edge with a part of the outer edge being concave inwards and a flange portion subjected to bending forming along the concave outer edge of the top portion includes: a first forming step of forming a preformed shape part including, in a part where the flange portion is formed in a blank material, a vertical wall portion that becomes a part of the flange portion and a mountain shaped portion that is bent outwards from the vertical wall portion and is convex towards the top portion; and a second forming step of forming the flange portion by performing bending forming on a part including the mountain shaped portion of the preformed shape part formed at the first forming step along a bending line that is a boundary from the vertical wall portion. | ||||||
76 | METHOD AND SYSTEM FOR VARYING THE GAGE OF METAL STRIPS | US15532244 | 2015-12-04 | US20170266713A1 | 2017-09-21 | Francisco Javier González Fanfalone; Pedro Cárdenas Flores |
A variable thickness process and system for processing steel strips to obtain a profile with at least two different thicknesses along its width which includes at least one heating step, and at least one stretching step and one straightening step. | ||||||
77 | Shot peening method | US14959578 | 2015-12-04 | US09573247B2 | 2017-02-21 | Tetsuji Egawa; Takashi Umehara; Hiromi Tomoto |
A method of shot peening according to the present invention includes: placing a jig having an appropriate dimension at one face side of a stamped workpiece; and performing shot peening on another face side of the workpiece in a state where the jig is placed at the one face side of the workpiece, and conforming the workpiece to the jig. At this time, the shot peening may be performed in such a way that residual stresses in the inner side and the outer side of the curved part of the workpiece will become compressive stresses. | ||||||
78 | METHOD AND APPARATUS FOR FORMING AN ANNULAR PART | US14903862 | 2014-07-08 | US20160158820A1 | 2016-06-09 | Michael LUDLOW |
An apparatus (31) for forming an annular part (53) comprising a punch (2) having a forming end with an external surface (32) shaped to correspond to the shape of the annular part (53). The apparatus further comprises a clamping arrangement (3, 5) for clamping a large diameter end of a preform (4) and a gripping arrangement (6, 7) for adjustably gripping a small diameter end of the preform (4). An actuation system is provided for facilitating relative coaxial movement only between the punch (2), the clamping arrangement (3, 5) and the gripping arrangement (6, 7). | ||||||
79 | PRESS FORMING METHOD | US14443744 | 2013-10-28 | US20150298193A1 | 2015-10-22 | Masaki Urabe |
A press forming method of press forming a formed part including a top portion having a concave outer edge with a part of the outer edge being concave inwards and a flange portion subjected to bending forming along the concave outer edge of the top portion includes: a first forming step of forming a preformed shape part including, in a part where the flange portion is formed in a blank material, a vertical wall portion that becomes a part of the flange portion and a mountain shaped portion that is bent outwards from the vertical wall portion and is convex towards the top portion; and a second forming step of forming the flange portion by performing bending forming on a part including the mountain shaped portion of the preformed shape part formed at the first forming step along a bending line that is a boundary from the vertical wall portion. | ||||||
80 | DEEP-DRAWING METHOD AND FORMING DIE THEREFOR | US14399053 | 2013-06-05 | US20150217357A1 | 2015-08-06 | Hidekazu Tomaru; Nobuhisa Okabe; Hironori Oonishi |
The present invention provides a deep-drawing method and a forming die therefor which can prevent the occurrence of cup side wall wrinkles and the collapse of the bottom during the process of deep-drawing a blank and which can increase the drawing ratio. A wrinkle pressing surface of a pressure pad (1) or an upper surface of a draw die (2) includes a flat inner edge surface (11), a tapered surface (12) which becomes deeper as the surface advances from the flat inner edge surface toward an outer circumference, a deepest flat surface (13), and a flat outer edge surface (14), which are provided in that order from an inner edge through which a draw punch passes toward an outer edge. |