公开(公告)号：US11819911B2

公开(公告)日：2023-11-21

申请号：US17352935

申请日：2021-06-21

申请人： Oskar Frech GmbH + Co. KG

发明人： Daniel Gerner ,  Andreas Sydlo

IPC分类号： B22D17/32 ,  B22D17/04 ,  B22D17/20

CPC分类号： B22D17/32 ,  B22D17/04 ,  B22D17/203

摘要： A die-casting machine has a casting mould, a casting chamber, a casting piston arranged in an axially movable manner in the casting chamber, a melt inlet channel which leads into the casting chamber, a shut-off valve in the melt inlet channel, a melt outlet channel which leads from the casting chamber to the casting mould, and a control unit for controlling the casting piston. The control unit and the shut-off valve are configured, after completing a filling phase in a subsequent refilling phase firstly to bring the shut-off valve into an open position and to control the casting piston to move back into the casting start position, in order to supply the casting chamber with melt material via the melt inlet channel, and to control the shut-off valve into its closed position again before the casting piston has reached its casting start position by virtue of its return movement, and to control the casting piston to back-suction melt material in the melt outlet channel by virtue of the further return movement of the casting piston.

公开(公告)号：US10071418B2

公开(公告)日：2018-09-11

申请号：US15370624

申请日：2016-12-06

申请人： TOYO MACHINERY & METAL CO., LTD.

发明人： Shingo Ikeda ,  Akihiro Yamanaka ,  Yuji Harada

IPC分类号： B22D17/32 ,  B22D17/20

CPC分类号： B22D17/32 ,  B22D17/203

摘要： The damage to devices are avoided, by performing operation control of a hydraulic operating means and an electric servomotor, that are adapted as drive sources in an injection step, separately and not performing coordinate control. A die casting machine 1 includes a tubular injection sleeve 12, an injection plunger 13, an electric servomotor 17 and a hydraulic operating means 21 which are used as a drive source of an injection step, and a control means 30 which controls the electric servomotor 17 and the hydraulic operating means separately, when injecting and filling the cavity of the mold, which has been closed, with the molten metal by the advancing of the injection plunger 13, during a low-speed injection step and a high-speed injection step which is performed at a higher speed than the low-speed injection step, in the injection step.

公开(公告)号：US09968997B2

公开(公告)日：2018-05-15

申请号：US15028991

申请日：2014-10-15

申请人： BYD COMPANY LIMITED

发明人： Yanan Wang ,  Qiuhui Chen

IPC分类号： B22D17/10 ,  B22D17/14 ,  B22D17/20 ,  B22D17/28 ,  B22D17/30 ,  B22D17/32 ,  B22D27/15 ,  B22D27/00

CPC分类号： B22D17/14 ,  B22D17/10 ,  B22D17/2023 ,  B22D17/203 ,  B22D17/2038 ,  B22D17/28 ,  B22D17/30 ,  B22D17/32 ,  B22D27/003

摘要： A metal forming apparatus includes an injection device and a displacement speed monitoring device. The injection device includes a moveable injection rod defining a sliding channel, and a magnet ring disposed on the injection rod, the displacement speed monitoring device includes a housing sealedly connected to the injection device, and a linear displacement sensor disposed in the housing, a rear end of the injection rod is extended into the housing such that a front end of the linear displacement sensor is located in the sliding channel.

公开(公告)号：US20180023597A1

公开(公告)日：2018-01-25

申请号：US15549464

申请日：2016-02-09

申请人： Oskar Frech GmbH + Co. KG

发明人： Norbert ERHARD ,  Peter MAURER

IPC分类号： F15B3/00 ,  B22D17/32 ,  B22D17/20

CPC分类号： F15B3/00 ,  B22D17/203 ,  B22D17/2069 ,  B22D17/32

摘要： A pressure intensifier device for increasing pressure in a pressurized fluid chamber of a piston/cylinder unit and a casting unit provided therewith for a diecasting machine, and also an associated operating method are provided. The pressure intensifier device has a pressure intensifier cylinder and a pressure intensifier piston, which is guided in an axially movable manner in the cylinder, wherein the pressure intensifier cylinder has an outlet region, an inlet region upstream of the outlet region and a piston guiding chamber, and the pressure intensifier piston has a piston part, which is guided in the piston guiding chamber, and a piston rod, which extends from the piston part to the inlet region, in a maximally retracted release position releases a fluid connection between the inlet region and the outlet region and, in a maximally advanced blocking position, blocks this connection with a free end portion, with which it extends into the outlet region. Over a portion that can be passed through by the free end portion of the piston rod during movement from the release position into the blocking position, the outlet region has a free passage cross section for the free piston rod end portion that is at least equal in size to a rod cross section of the free piston rod end portion. Advantageously, a pressure intensifier inlet valve can be controlled independently of a pressure in the pressurized fluid chamber of the piston/cylinder unit.

公开(公告)号：US20170326630A1

公开(公告)日：2017-11-16

申请号：US15583395

申请日：2017-05-01

申请人： Toshiba Kikai Kabushiki Kaisha

发明人： KOUEI NAKATA ,  SATORU AIDA ,  TOSHIAKI TOYOSHIMA

IPC分类号： B22D17/00 ,  B22D17/20 ,  B22D17/10 ,  B22D17/32 ,  B22D17/26

CPC分类号： B22D17/007 ,  B22D17/002 ,  B22D17/10 ,  B22D17/203 ,  B22D17/26 ,  B22D17/32

摘要： A die casting machine includes a clamping device 7 which opens and closes and clamps a pair of die halves, an injection apparatus which performs injection to the pair of die halves by making a plunger move forward in a sleeve communicated with a space between the pair of die halves, and a control device which controls the clamping device and injection apparatus. The control device includes an injection control part and press-use clamping control part. The injection control part controls the injection apparatus so as to start the injection in a state where the pair of die halves face each other through a gap. The press-use clamping control part controls the clamping device so that the die contact and clamping are carried out after the start of injection. Further, the injection control part performs control for decelerating the plunger before the plunger stops.

公开(公告)号：US09815111B2

公开(公告)日：2017-11-14

申请号：US14661090

申请日：2015-03-18

申请人： ITALPRESSE INDUSTRIE S.P.A.

发明人： Alessandro Gnali

IPC分类号： B22D17/20 ,  B22D17/32

CPC分类号： B22D17/203 ,  B22D17/2015 ,  B22D17/32

摘要： An injection assembly (2) of a hydraulic machine for diecasting is provided with a main shut-off valve (50) suitable to prevent the return of fluid from the main pressure chamber (30). The main valve (50) comprise a containment case (541), in which a return spring (540) is housed, suitable to retain any rupture fragments thereof.

公开(公告)号：US20170136528A1

公开(公告)日：2017-05-18

申请号：US15021691

申请日：2014-09-19

申请人： Richard John WILKES ,  Owen Michael ZELINA ,  Xiaoping NIU ,  MAGNA INTERNATIONAL INC.

发明人： Richard John Wilkes ,  Owen Michael Zelina ,  Xiaoping Niu

IPC分类号： B22D17/10 ,  B22D17/20 ,  B22D17/00

CPC分类号： B22D17/10 ,  B22D17/002 ,  B22D17/2007 ,  B22D17/2023 ,  B22D17/203 ,  B22D17/2272

摘要： A high-pressure die casting apparatus including a shot sleeve extending through a first die half to a molding surface, and a plunger received in the shot sleeve is provided. The shot sleeve includes a side wall presenting a fluid passageway and a partial end wall disposed in a fixed position relative to the side wall. The partial end wall defines a wall opening adjacent the molding surface. Fluid is poured into the shot sleeve while the die apparatus is open, and the partial end wall prevents the fluid from flowing out of the shot sleeve. The plunger then presses the material into the mold cavity until only a portion of the material remains in the shot sleeve and blocks the wall opening. After the solidified material is ejected from the apparatus, the portion of material blocking the wall opening prevents lubricant from entering the shot sleeve.

公开(公告)号：US09643245B2

公开(公告)日：2017-05-09

申请号：US15002406

申请日：2016-01-21

申请人： SCHULER PRESSEN GMBH

发明人： Juergen Fahrenbach ,  Martin Gaebges ,  Michael Richter ,  Tobias Schwarz

IPC分类号： B22D27/11 ,  B22D17/20 ,  B22D17/30

CPC分类号： B22D27/11 ,  B22D17/20 ,  B22D17/2015 ,  B22D17/203 ,  B22D17/2069 ,  B22D17/2076 ,  B22D17/30

摘要： A method for a die casting with a casting device which includes a casting valve with a valve piston and a post-compression piston configured to provide a post-compression. The method includes providing a casting valve in a closed position and a mold cavity which is cleaned and prepared for a mold filling process, opening the casting valve for a casting, filling the casting valve with a melt, closing the casting valve after the filling with the melt, cooling the casting valve and the melt, and removing a cast part. A post-compression is provided to the melt during the cooling by the post-compression piston.

公开(公告)号：US09623478B2

公开(公告)日：2017-04-18

申请号：US14803729

申请日：2015-07-20

申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA

发明人： Takashi Tomita ,  Makoto Kikuchi

IPC分类号： B22D17/20 ,  B22D17/30 ,  B22D17/32 ,  B22D17/10 ,  B22D17/14 ,  B22D39/00

CPC分类号： B22D17/10 ,  B22D17/145 ,  B22D17/2023 ,  B22D17/203 ,  B22D17/30 ,  B22D17/32 ,  B22D39/006

摘要： In a die casting apparatus, during feeding of molten metal by an electromagnetic pump, a molten metal level sensor repeatedly detects a during-feeding level of the molten metal stored in a molten metal holding furnace; a control unit corrects a molten metal feeding voltage to a during-feeding voltage based on the repeatedly detected during-feeding level of the molten metal such that an amount of the molten metal fed by the electromagnetic pump coincides with a prescribed amount; the control unit applies the during-feeding voltage to the electromagnetic pump to cause the electromagnetic pump to feed the molten metal from the molten metal holding furnace into a plunger sleeve; and casting is performed through an injecting operation in which the molten metal fed into the plunger sleeve is extruded by a plunger tip to be injected into a cavity.

公开(公告)号：US09604279B2

公开(公告)日：2017-03-28

申请号：US14391731

申请日：2012-04-13

申请人： Sean Timothy O'Keeffe ,  Quoc Tran Pham ,  Theodore Andrew Waniuk ,  Michael Blaine Deming

发明人： Sean Timothy O'Keeffe ,  Quoc Tran Pham ,  Theodore Andrew Waniuk ,  Michael Blaine Deming

IPC分类号： B22D17/20 ,  B22D17/04 ,  B22D25/06 ,  B29C45/00 ,  C22C45/00 ,  C22C45/02 ,  C22C45/10 ,  B29L31/00

CPC分类号： B22D17/2038 ,  B22D17/04 ,  B22D17/2023 ,  B22D17/203 ,  B22D25/06 ,  B29C45/0001 ,  B29L2031/772 ,  C22C45/001 ,  C22C45/003 ,  C22C45/02 ,  C22C45/10

摘要： Disclosed is a vessel for melting meltable material having a body with a melting portion configured to receive meltable material to be melted therein and an injection path for injecting the meltable material in molten form after melting (e.g., into a mold). The body has a recess configured to contain the meltable material within the vessel during melting of the material. The vessel is configured for movement between in a first position to restrict entry of molten material into an injection path of the vessel and to contain the material in the recess during melting, and a second position to allow movement of the material in a molten form through the injection path and into the mold (e.g., using a plunger). The vessel can be used in an injection molding system for molding bulk amorphous alloys.