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公开(公告)号：US20240309498A1
公开(公告)日：2024-09-19
申请号：US18279725
申请日：2022-03-30
发明人： Takeaki WAKISAKA , Yoshiaki NATORI
CPC分类号： C22C38/02 , B21D28/14 , B21D35/005 , C21D8/1216
摘要： This non-grain-oriented electrical steel sheet is a non-grain-oriented electrical steel sheet including a silicon steel sheet as a base material, wherein the silicon steel sheet has a predetermined mechanical property depending on a direction with respect to a rolling direction, and the difference between a maximum value and a minimum value of diameters of circular holes after punching with a substantially circular die is 0.20% or less of the average value of the maximum value and the minimum value.
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公开(公告)号：US20240149325A1
公开(公告)日：2024-05-09
申请号：US18533893
申请日：2023-12-08
申请人： OILES CORPORATION
发明人： Hideki KIRIAKI , Junichi TANAHASHI , Satoshi ABE
摘要： The present invention makes it possible to obtain a fine finish along a trim line in a plate material while preventing scoring between a floating cutter and a main trimming press upper. A floating cutter unit is provided with: a floating cutter for cutting scrap from a plate-shaped material, said floating cutter being attached to and used in a trimming press processing device that cuts scrap from a plate material along a trim line Tr and that additionally cuts scrap along a scrap cut line Sc; a holder set for holding the floating cutter so as to be movable in the direction of an axial center O; a spring that is brought into contact with the tail end surface of the floating cutter and that applies reaction force to the floating cutter; and a pair of cutters that are attached to the holder set and positioned on both sides of the floating cutter along the trim line Tr.
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公开(公告)号：US11583914B2
公开(公告)日：2023-02-21
申请号：US16454356
申请日：2019-06-27
发明人： Thoney R. Charles , George A. Weiss
摘要： A blanking die apparatus includes a first blanking die including an upper die shoe including an upper die shoe cutting surface and a lower die shoe including a lower die shoe cutting surface. A second blanking die includes an upper die shoe including an upper die shoe cutting surface and a lower die shoe including a lower die shoe cutting surface. The second blanking die movable on a base in a feed direction to increase and decrease a dimension of a blank formed between the first blanking die and the second blanking die.
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公开(公告)号：US20220410243A1
公开(公告)日：2022-12-29
申请号：US17853553
申请日：2022-06-29
发明人： Michael W. WILSON , Wayne W. FORD
摘要： A system for punching slots in a hollow elongate panel. The system includes: a die matrix configured to be receivable within the hollow elongate panel, the die matrix including at least one locating aperture and at least one matrix void. The system includes a punching apparatus including at least one punch configured to be extended through corresponding matrix voids of the die matrix to punch one or more slots at the wall of the hollow panel. The system includes a sensing apparatus including at least one sensing pin configured to be extended towards the at least one locating aperture of the die matrix. The punching apparatus may be configured to punch the one or more slots at a downstream wall portion the hollow elongate panel in response to the sensing apparatus determining that the at least one sensing pin is received within a corresponding locating aperture of the die matrix.
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5.发明申请公开(公告)号：US20220196377A1
公开(公告)日：2022-06-23
申请号：US17692393
申请日：2022-03-11
发明人： Marc Klinkhammer , Simon Ockenfuss
摘要： A method and a set-up apparatus for a tool for punching or forming sheet-form materials having a punch holder into which a punch of the tool is insertable and a die holder into which a die of the tool or a die carrier holding the die is insertable. The punch holder and the die holder are movable towards one another by a guide. The punch holder is transferred along the guide into a measuring position in which the punch rests on a surface of a measurement object which rests on the die. A distance of the punch holder is measured from a zero point of the die holder and a distance of the measurement object from the zero point. An evaluation device outputs a punch length of the punch and a die height of the die or a die height of the die arranged in the die carrier.
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公开(公告)号：US20220105554A1
公开(公告)日：2022-04-07
申请号：US17064868
申请日：2020-10-07
摘要： A stamping apparatus is provided for producing an ammunition tray from metal sheet template with interleaving parallel cutouts in conjunction with a shop press. The apparatus includes upper and lower tray dies, upper and lower binders, and a pair of bolsters. Each die has opposite external and internal sides. The external side has a depression pocket. The internal side has a die impression to shape the template. Each binder has a cavity. The tray dies are disposed between the binders. The bolsters are disposed for engaging the shop press to apply compressive force. Each bolster correspondingly inserts through the cavity and into the depression pocket. The template is disposed between lower and upper internal sides of respective the dies. The shop press applies compression to the bolsters for stamping the template by the dies into the ammunition tray.
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公开(公告)号：US11154921B2
公开(公告)日：2021-10-26
申请号：US16166987
申请日：2018-10-22
发明人： Hajime Banno , Shinpei Ono
摘要： A device for manufacturing a laminated iron core includes a die and a punch configured to punch iron core pieces out of a thin-plate workpiece, a squeeze ring in which the iron core pieces are laminated, and a back-pressure device configured to apply back pressure to the laminated iron core pieces from a side opposite to the punch in a forward-backward direction of the punch. The back-pressure device includes a support body configured to move in the forward-backward direction, a biasing member configured to bias the laminated iron core pieces toward the punch, a drive device having an output shaft, and a conversion mechanism configured to convert rotary motion of the output shaft into linear motion of the support body in the forward-backward direction.
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公开(公告)号：US11123786B2
公开(公告)日：2021-09-21
申请号：US16830340
申请日：2020-03-26
发明人： Zuo Xu , Haijun Guo , Dengyao Li , Zhi Chen , Yacong Zhang
摘要： The present disclosure relates to the technical field of trimming dies and specifically relates to a trimming die for a casting of a front steering knuckle in a double-wishbone suspension. The trimming die includes an upper roof, an intermediate plate, a movable plate, a base, springs, connecting columns, a pressing block connecting rod, a cutting edge, a pressing block, a casting, hold-down blocks, a first supporting block and second supporting blocks.
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公开(公告)号：US20200058931A1
公开(公告)日：2020-02-20
申请号：US16346948
申请日：2018-06-29
申请人： LG CHEM, LTD.
发明人： Jong Keon YOON , Hoe Jin HAH , Kyung Hwa WOO
摘要： A 3-dimensional (3D) pattern puncher for punching a lithium metal electrode to provide one or more unit electrodes is provided. The 3D pattern puncher includes a mold punch configured to move up and down, the mold punch corresponding to a size of the unit electrode; a die corresponding to the mold punch; a mold blade disposed at an edge of the mold punch and configured to punch the lithium metal electrode to provide the one or more unit electrodes; and a 3D pattern positioned at an inner portion of the mold punch where the mold blade is not disposed.
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10.发明授权公开(公告)号：US10413958B2
公开(公告)日：2019-09-17
申请号：US15123306
申请日：2014-03-04
发明人： Hideo Horii , Kenichi Shindo
摘要： In a back pressure device for progressive die apparatus, a suitable back pressure can be produced during the blanking interval preventing the iron core laminates from being pushed upward by using a simple structure. The back pressure device for progressive die apparatus comprises a support table (31) disposed in a vertically moveable manner in an iron core retaining member (22) for retaining iron core laminates blanked from the sheet steel strip in the progressive die apparatus (1) and for stacking the iron core laminates thereon one after another, a support unit (32) for supporting the support table, a lifting motor (33) for causing a vertical movement of the support table via the support unit and a control unit (34) for controlling a rotational motion of the lifting motor, wherein the control unit is configured to set a plurality of torque limit values for limiting an output torque of the lifting motor depending on an action of the progressive die apparatus so that the output torque is limited by a largest of the torque limit values during a blanking interval for the iron core laminates.
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