公开(公告)号：US20240239030A1

公开(公告)日：2024-07-18

申请号：US18434366

申请日：2024-02-06

Applicant: NISSEI PLASTIC INDUSTRIAL CO., LTD.

Inventor： Hozumi YODA ,  Nobukazu KASUGA ,  Hirofumi MURATA

IPC: B29C45/77 ,  B29C45/04 ,  B29C45/67 ,  B29C45/76

CPC classification number: B29C45/77 ,  B29C45/04 ,  B29C45/67 ,  B29C45/7653 ,  B29C45/766 ,  B29C45/768 ,  B29C2945/76083 ,  B29C2945/76096 ,  B29C2945/76254 ,  B29C2945/76498 ,  B29C2945/76505 ,  B29C2945/76595 ,  B29C2945/76709 ,  B29C2945/76732

Abstract: An injection molding machine including a mold clamping device for clamping a mold comprising a fixed mold and a movable mold by a predetermined mold clamping force; an injection device for injecting and filling a resin into the mold by a predetermined injection pressure, wherein the mold clamping device enables natural compression of the resin at least as the resin inside the mold solidifies; and a molding machine controller at least including a specific molding condition setting function for setting a specific molding condition by obtaining a parting opening amount which becomes a predetermined gap between the movable mold and the fixed mold during injection filling, a molding injection pressure which becomes an injection pressure capable of molding a good product and a molding clamping force which becomes a mold clamping force capable of molding a good product; a fast injection condition setting function for setting, as a fast injection condition, a fast injection speed from the start of injection, the fast injection speed being higher than the injection speed set by the specific molding condition, and a fast injection section for continuing the fast injection speed; and a molding control function for mold-clamping the mold clamping device by the molding clamping force, setting the molding injection pressure to a limit pressure, injecting and filling the mold by the fast injection condition from the start of injection, and filling the mold by the specific molding condition by the end of the fast injection section.

公开(公告)号：US20240149514A1

公开(公告)日：2024-05-09

申请号：US17928656

申请日：2022-06-16

Applicant: NISSEI PLASTIC INDUSTRIAL CO., LTD.

Inventor： Masaru Hanaoka

IPC: B29C45/67 ,  B29C45/17

CPC classification number: B29C45/6707 ,  B29C45/1744

Abstract: A mold-clamping machine includes a pressure receiving mount, a turn table mounted on the pressure receiving mount so as to be freely turnable, a movable mount placed at a position higher than the turn table, tie bars attached to and extending downwardly from the movable mount, and which pass completely through the pressure receiving mount and a traction mount. The mold-clamping machine clamps a metal mold by moving down the traction mount with reference to the pressure receiving mount. Each of the tie bars is freely movable up and down by each of first to third cylindrical guides provided at the pressure receiving mount. The second cylindrical guide and the third cylindrical guide each include a rectangular flange portion fastened to the pressure receiving mount, and respective attachment attitudes of the second cylindrical guide and the third cylindrical guide are adjustable.

公开(公告)号：US11931940B2

公开(公告)日：2024-03-19

申请号：US17280402

申请日：2019-10-02

Applicant: ARBURG GMBH + CO KG

Inventor： Rainer Bletscher

IPC: B29C45/67

CPC classification number: B29C45/6707

Abstract: The invention relates to a mold-closing unit for an injection molding machine for processing plastics, comprising a mold-moving device for moving the movable mold support into and out of closure of an injection mold. At least one force transmission element is connected to the movable mold support and at its end remote from the movable mold support has a section (14a) which is assigned to the stationary mold support. The stationary mold support (10) is assigned a locking device (15) having a plurality of locking elements (70) which can be moved into interlocking operative connection with the actuatable section (14a). The locking device (15) has at least one actuator (16) which is movable in the closing direction (s-s) and on which, during movement of the actuator, the locking elements (70) are movable transversely to the closing direction (s-s) along a sliding block guide (60) in and out of an interlocking operative connection with the actuatable section (14a). The actuator is at the same time connected to at least one piston (18) of a piston-cylinder unit (17) for applying the closing force.

公开(公告)号：US20230001614A1

公开(公告)日：2023-01-05

申请号：US17855986

申请日：2022-07-01

Applicant: ENGEL AUSTRIA GmbH

Inventor： Stephan EPPICH ,  David SULZBACHNER

IPC: B29C45/67

Abstract: Clamping unit for a molding machine, in particular for an injection-molding machine, with a machine frame, an end plate arranged on the machine frame, a platen movably mounted on the machine frame, a stationary platen arranged on the machine frame, at least two, in particular four, tie bars, via which a clamping force can be transmitted, and a mold height adjustment apparatus for adjusting the mold height for a molding tool which can be or is fitted on the platen, wherein the mold height adjustment apparatus has
i. a rotatable adjustment element gripping on at least one tie bar, ii. a drive device for rotating the rotatable adjustment element and iii. a locking device for securing the rotatable adjustment element against a rotational movement relative to the at least one tie bar.

公开(公告)号：US20220219370A1

公开(公告)日：2022-07-14

申请号：US17567405

申请日：2022-01-03

Applicant: NISSEI ASB MACHINE CO., LTD.

Inventor： Hiroshi HORIGOME ,  Shou TAKATO

IPC: B29C49/06 ,  B29C45/67 ,  B29C45/56 ,  B29C49/42 ,  B29C49/78 ,  B29C49/56

Abstract: An injection blow molding apparatus comprises: a first oil supply section which has a hydraulic drive source composed of a drive motor, whose number of revolutions can be controlled, and a hydraulic pump and which supplies oil from an oil tank to an injection mold drive unit provided in an injection mold unit; and a second oil supply section which has a hydraulic drive source composed of a drive motor, whose number of revolutions can be controlled, and a hydraulic pump and which supplies oil from the oil tank to a blow mold drive unit provided in a blow mold unit, the second oil supply section being provided independently of the first oil supply section.

公开(公告)号：US11305472B2

公开(公告)日：2022-04-19

申请号：US16190310

申请日：2018-11-14

Applicant: Kabushiki Kaisha Meiki Seisakusho

Inventor： Minetoshi Kako ,  Yasuhiro Yabuki ,  Tomohiro Soeda

IPC: B29C45/76 ,  B29C45/67

Abstract: In an injection molding machine that transmits driving force of a mold opening/closing servo motor to a movable platen via a ball screw to move the movable platen with respect to a stationary platen, and thereafter clamps molds by a mold clamping mechanism, provided is a control method capable of detecting a position of the movable platen at a time of continuous molding and correcting the operation start confirming position. In a method for controlling an injection molding machine that transmits driving force of a mold opening/closing servo motor to a movable platen via a ball screw to move the movable platen with respect to a stationary platen, and thereafter clamps molds by a mold clamping mechanism, other control is performed using a position A of the movable platen, the position A being detected by a position sensor at a time of continuous molding, and the position A of the movable platen is corrected.

公开(公告)号：US11110636B2

公开(公告)日：2021-09-07

申请号：US16267690

申请日：2019-02-05

Applicant: Limworks, LLC

Inventor： John E. Burton ,  Christopher J. Burton

IPC: B29C45/26 ,  B29C45/03 ,  B29C45/64 ,  B29C45/67 ,  B29C45/27 ,  B29C45/53 ,  B29C45/68 ,  B29C45/00 ,  B29C45/17 ,  B29K83/00 ,  B29C45/28 ,  B29K101/10

Abstract: An injection molding machine with an injection system and a clamping system. The injection system may include a removable injection module defining a portion of the material flow path. The injection module may include all of parts that come in contact with the material between the material source and the mold. The injection module may include a valve arrangement movable between a fill position to load the injection module with material and an inject position to eject material from the injection module into the mold. The actuators for the injection module may be supported on the machine rather than the injection module. The clamping system may include a platen linear actuator to open and close the mold, and a hydraulic clamping system to apply clamping force to the closed mold. The hydraulic clamping system may include a free-float valve manifold assembly that selectively places the hydraulic cylinders in free-float mode.

公开(公告)号：US10532506B2

公开(公告)日：2020-01-14

申请号：US15599840

申请日：2017-05-19

Applicant: Niigon Machines Ltd.

Inventor： Carsten Link ,  Robert D. Schad ,  Luke Osmokrovic

IPC: B29C45/67 ,  B29C45/17 ,  B29C45/12 ,  B29C45/64

Abstract: A clamp assembly for an injection molding machine includes (a) a clamp cylinder housing and (b) a clamp piston affixed to an end portion of a tie bar and slidable within the housing among a clamping position, a mold break position, and a meshing position disposed axially intermediate the clamping and the mold break positions. The clamp assembly further includes (c) a clamp chamber for urging the clamp piston towards the clamping position when pressurized; (d) a return device for urging the clamp piston towards the meshing position when pressure in the clamp chamber is relieved; and (e) a mold break chamber for urging the clamp piston towards the mold break position when pressurized. The mold break chamber is bounded axially by opposed surfaces of the tie bar and the return device.

公开(公告)号：US10518320B2

公开(公告)日：2019-12-31

申请号：US15896476

申请日：2018-02-14

Applicant: Nemak, S.A.B. de C.V.

Inventor： Ryan Benck ,  Jared Ottmann ,  Scott Martin

IPC: B22D17/26 ,  B29C45/64 ,  B22D17/32 ,  B29C45/67

Abstract: A casting apparatus including a casting die having at least two die halves movable relative to one another between a closed position and an open position, the die halves each comprising a front surface in which a recess is formed, an adjusting device for moving one of the die halves, and a clamping device switchable between a clamping position when the die is closed, and a release position when the die is open. The clamping device is an integral part of the die halves and includes a counter bearing and a locking device. In the clamping position, the locking device is in a form fitting engagement with the counter bearing to lock the die halves in the closed position, and in the release position, the locking device is released from the counter bearing to release the die halves from each other for opening of the die.

公开(公告)号：US20190134871A1

公开(公告)日：2019-05-09

申请号：US16180314

申请日：2018-11-05

Applicant: ENGEL AUSTRIA GmbH

Inventor： Guenter SCHOTT ,  Markus STOEGER ,  Richard CZEPL ,  Herbert ZEIDLHOFER

IPC: B29C45/67 ,  B21K1/64 ,  B21K1/56

Abstract: A pull or push rod for a molding machine having a groove. The groove is suitable for forming a positive-locking connection with a locking nut, by which positive-locking connection forces are transmittable between the locking nut and the pull or push rod. The groove has a groove cross-section, has at least two groove flanks, and has a groove base. The at least two groove flanks, viewed in the groove cross-section, each transition with at least one transition curvature into the groove base. The groove base in the groove cross-section is at least partially formed as a curvature, and the curvature of the groove base differs from the transition curvatures of the groove flanks.