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公开(公告)号：US12076901B2
公开(公告)日：2024-09-03
申请号：US18144421
申请日：2023-05-08
Applicant: Husky Injection Molding Systems Ltd.
Inventor： Weichun Yu , Gregory Allan Schultz
CPC classification number: B29C45/82 , B29C45/7653 , B29C45/77 , B29C2945/76006 , B29C2945/76307 , B29C2945/76498 , B29C2945/76785
Abstract: An injection molding system configured to operate in a plurality of cycles includes, amongst other things, a controller that is configured for performing a comparison of a variable pressure setpoint with a target pressure value. The controller is configured to, when the target pressure value is less than the variable pressure setpoint by at least a predetermined lower bound, (i) decrease the variable pressure setpoint to a reduced variable pressure setpoint and (ii) not further decrease the variable pressure setpoint from the reduced variable pressure setpoint until the pump assembly operates for a plurality of stabilizing cycles at the reduced variable pressure setpoint.
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公开(公告)号：US20240227269A9
公开(公告)日：2024-07-11
申请号：US18277621
申请日：2022-02-21
Applicant: ARBURG GMBH + CO KG
Inventor： Eberhard DUFFNER , Walter FEST
IPC: B29C45/82
CPC classification number: B29C45/82 , B29C2045/826 , B29C2945/76056 , B29C2945/76307
Abstract: The invention relates to a hydraulic device for supplying a plurality of work units (3a, 3b), in particular on a plastics injection moulding machine, said device comprising at least one controller (7), at least one valve regulator and/or one valve controller and a central drive (1). A regulating valve (13a, 13b) with a regulating-valve geometry is provided on at least one of the work units (3a, 3b). Pressure sensors (8) detect at least one pressure both upstream and downstream of the regulating valve (13a, 13b), the load pressure (10a, 10b) of at least one of the work units (3a, 3b), and the system pressure (9). Since the valve regulator and/or the valve controller has knowledge about the regulating-valve geometry of the at least one regulating valve (13a, 13b) and is designed to derive, from a relationship between the regulating-valve geometry and at least one pressure difference resulting from the pressures detected upstream and downstream of the regulating valve (13a, 13b), at least one volume flow rate actual value per regulating valve (13a, 13b), and the controller (7) is designed to derive, from the volume flow rate setpoint values of the at least one work unit (3a, 3b) and/or the volume flow rate actual values of the at least one regulating valve (13a, 13b), at least one setpoint value feedforward control for the central drive (1) in such a way that the system pressure (9) corresponds at least to the relevant highest load pressure (10a, 10b) of the work units (3a, 3b), the hydraulic device is improved in terms of functionality, energy, efficiency and economy.
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公开(公告)号：US11958226B2
公开(公告)日：2024-04-16
申请号：US17760931
申请日：2020-09-21
Applicant: HUSKY INJECTION MOLDING SYSTEMS LTD.
Inventor： Weichun Yu , Gregory Allan Schultz
CPC classification number: B29C45/82 , B29C45/7653 , B29C45/77 , B29C2945/76006 , B29C2945/76307 , B29C2945/76498 , B29C2945/76785
Abstract: In one aspect, there is provided an injection molding system configured to operate in a plurality of cycles. The system comprises, amongst other things, a controller that is configured for performing a comparison of a variable pressure setpoint with a target pressure value. The controller is configured to, when the target pressure value is less than the variable pressure setpoint by at least a predetermined lower bound, (i) decrease the variable pressure setpoint to a reduced variable pressure setpoint and (ii) not further decrease the variable pressure setpoint from the reduced variable pressure setpoint until the pump assembly operates for a plurality of stabilizing cycles at the reduced variable pressure setpoint.
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公开(公告)号：US11951666B2
公开(公告)日：2024-04-09
申请号：US18144448
申请日：2023-05-08
Applicant: Husky Injection Molding Systems Ltd.
Inventor： Weichun Yu , Gregory Allan Schultz
CPC classification number: B29C45/82 , B29C45/7653 , B29C45/77 , B29C2945/76006 , B29C2945/76307 , B29C2945/76498 , B29C2945/76785
Abstract: In one aspect, there is provided an injection molding system configured to operate in a plurality of cycles. The system comprises, amongst other things, a controller that is configured for performing a comparison of a variable pressure setpoint with a target pressure value. The controller is configured to, when the target pressure value is less than the variable pressure setpoint by at least a predetermined lower bound, (i) decrease the variable pressure setpoint to a reduced variable pressure setpoint and (ii) not further decrease the variable pressure setpoint from the reduced variable pressure setpoint until the pump assembly operates for a plurality of stabilizing cycles at the reduced variable pressure setpoint.
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公开(公告)号：US11826939B2
公开(公告)日：2023-11-28
申请号：US15891888
申请日：2018-02-08
Applicant: SAFRAN AIRCRAFT ENGINES , SAFRAN
Inventor： Marc-Emmanuel Jean François Techer , Nicolas Cambyse Ashtari , Raoul Jaussaud , Benoit Bazin , Thierry Chauvin , Olivier Foussard , Nate Gravelle , Adrien Touze
CPC classification number: B29C45/77 , B29C45/02 , B29C45/82 , B29C70/48 , B29C70/546 , B29C2045/465 , B29C2945/7604 , B29C2945/76498 , B29L2031/082
Abstract: The invention relates to a resin injection regulator for a resin injection circuit in a mould for producing a composite part, in particular a turbine engine composite part, characterised in that it comprises at least one vessel which is connected to said circuit and inside of which a movable wall means can be moved in a sealed manner, said movable wall means defining in said vessel a first cavity which forms a container for accumulation of resin and is designed to be connected to at least one part of said circuit, and a second cavity which is designed to be connected to a source of pressurised fluid, said movable wall means being designed to be urged by the pressurised fluid with which the second cavity is supplied in order to exert a pressure on the resin contained in the first cavity by isolating said resin from said fluid.
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Patent Agency Ranking
公开(公告)号：US20180001378A1
公开(公告)日：2018-01-04
申请号：US15621153
申请日：2017-06-13
Applicant: NISSEI PLASTIC INDUSTRIAL CO., LTD.
Inventor： Atsushi MURATA , Daiki TANEMURA , Hiroo OKUBO
CPC classification number: B22D17/26 , B29C45/1761 , B29C45/67 , B29C45/82
Abstract: A mold clamping apparatus of the type including a mold opening/closing actuator and a mold clamping cylinder, wherein rails for guiding a movable platen are disposed on a base, and the mold clamping cylinder has a left leg and a right leg each disposed between one pair of left and right rails of the rails. The rails provided for guiding the movable platen is used also as a side guide for the mold clamping cylinder. This arrangement can obviate the need for a separate guide member.
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7.发明授权公开(公告)号：US09845812B2
公开(公告)日：2017-12-19
申请号：US14649598
申请日：2013-12-04
Applicant: ARBURG GMBH + CO. KG
Inventor： Herbert Kraibuhler , Eberhard Duffner
CPC classification number: F15B11/04 , B29C45/82 , F15B21/008 , F15B21/08 , F15B2211/20515 , F15B2211/20538 , F15B2211/6309 , F15B2211/633 , F15B2211/6333 , F15B2211/6336 , F15B2211/6651 , F15B2211/6653 , F15B2211/8613 , F15B2211/8616 , F16L55/041 , G05D16/2066
Abstract: In a method for operating a hydraulic device for providing a supply to hydraulic consumers (V) on a plastics injection moulding machine, provision is made of a pump (10) with a volumetric delivery characteristic that results in cyclic pulsations and of a servomotor (11) with multiple poles that result in cyclic pulsations. The pressure at the hydraulic consumer (V) is detected and is input as an actual value into a pressure regulator (13) that readjusts the servomotor (11), on the basis of a predefined pressure profile, to a pressure setpoint value at the hydraulic consumer (V). The cyclic pressure pulsation is minimized in that, by means of a rotational angle sensor (20), the rotational angle (φ) of the pump (10) and/or of the servomotor (11) is detected and correlated with the cyclic pulsations, and in that, from this, a corrective value or a corrective function is determined and is transmitted to the pressure regulator (13) with control subordinate to the regulation of the pressure setpoint value. Alternatively or in addition, this is achieved in the case of a hydraulic device also in that, as corrective means for the pressure regulation, said means being subordinate to the consideration of the pulsations, the number of components of the pump (10) that result in the cyclic pulsations and the number of components of the servomotor (11) that generate cyclic pulsations are equal, or one is a multiple of the other.
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公开(公告)号：US09266269B2
公开(公告)日：2016-02-23
申请号：US14125617
申请日：2012-06-25
Applicant: Kazuyuki Yamaguchi
Inventor： Kazuyuki Yamaguchi
CPC classification number: B29C45/18 , B22D17/32 , B29C45/531 , B29C45/82 , Y10T137/86035
Abstract: The injection apparatus, which injects a molding material into a mold by operating an injection cylinder and fills the mold with the molding material, includes a plurality of actuating mechanisms that is connected to the injection cylinder. Each actuating mechanism includes an actuating cylinder that supplies an incompressible fluid to the injection cylinder, and a drive part that drives a piston of the actuating cylinder. In a low-speed step and a high-speed step for injecting the molding material, the piston of each actuating cylinder is driven forward, and hydraulic oil is supplied to the injection cylinder. In a pressure-increasing step, the pistons of the actuating cylinders are driven forward, and hydraulic oil is supplied to the injection cylinder. As the injection apparatus includes a plurality of actuating mechanisms, the speed and pressure of the injection cylinder can be increased without requiring high performance from the drive parts.
Abstract translation: 注射装置通过操作注射圆筒并且用模制材料填充模具将模制材料注射到模具中，包括连接到注射圆筒的多个致动机构。 每个致动机构包括致动气缸，其将不可压缩流体供应到注射缸，以及驱动部件，其驱动致动缸的活塞。 在用于注射成型材料的低速步骤和高速步骤中，每个致动缸的活塞被向前驱动，并且液压油被供应到注射缸。 在增压步骤中，致动气缸的活塞被向前驱动，液压油被供给到注射缸。 由于注射装置包括多个致动机构，所以可以增加注射缸的速度和压力，而不需要来自驱动部件的高性能。
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公开(公告)号：US20150361996A1
公开(公告)日：2015-12-17
申请号：US14665816
申请日：2015-03-23
Applicant: Eaton Corporation
Inventor： QingHui Yuan , Ankur Ganguli
IPC: F15B13/044 , F15B1/033 , F15B21/08 , F15B1/26
CPC classification number: F15B13/044 , B29C45/82 , F04B49/002 , F04B49/10 , F04B49/103 , F15B1/033 , F15B1/26 , F15B21/08 , F15B2201/50
Abstract: A hydraulic drive system for driving a load includes a drive shaft; first and second hydraulic pumps driven by the drive shaft, and a control system that operates the hydraulic drive system in a plurality of modes including: a) a first mode where the second hydraulic pump pumps hydraulic fluid from a supply line to an accumulator; b) a second mode where the second hydraulic pump pumps hydraulic fluid from the accumulator to the supply line; c) a third mode where the second hydraulic pump pumps hydraulic fluid from the supply line to a reservoir; and d) a fourth mode where the second hydraulic pump pumps hydraulic fluid from the reservoir to the supply line. At least the second hydraulic pump is a variable displacement bidirectional pump
Abstract translation: 用于驱动负载的液压驱动系统包括驱动轴; 由驱动轴驱动的第一和第二液压泵，以及以多种模式操作液压驱动系统的控制系统，包括：a）第一模式，其中第二液压泵将液压流体从供应管路泵送到蓄能器; b）第二模式，其中第二液压泵将液压流体从蓄能器泵送到供应管线; c）第三模式，其中第二液压泵将液压流体从供应管泵送到储存器; 以及d）第四模式，其中第二液压泵将液压油从储存器泵送到供应管线。 至少第二液压泵是可变排量双向泵
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公开(公告)号：US20120276242A1
公开(公告)日：2012-11-01
申请号：US13513529
申请日：2010-12-02
Applicant: Buming Huang
Inventor： Buming Huang
CPC classification number: B29C45/6771 , B22D17/26 , B29C45/67 , B29C45/82 , B29C2045/6785 , B30B1/323
Abstract: The present invention provides a mold clamping device comprising a stationary plate (1), a movable plate (2), mold-clamping cylinders (3) and a mold-moving cylinder (4), wherein the mold-clamping cylinders (3) include two or more internal circulation cylinders with single out-extending piston rod and the extension end of the piston rod is connected with the movable plate (2) or the stationary plate (1). A logic valve is provided inside the cylinder body (7) and between the piston (6) and the piston rod (5). When the spool (10) of the logic valve is moved towards right or left, the oil flow between the rod chamber (21) and the non-rod chamber (22) can be blocked or opened, which overcomes the defects of a large amount of oil flowing in or out of the oil tank during the releasing or closing of the mold as well as the strong resistance force. Further, an isolation plate (8) is arranged inside the non-rod chamber (22), in order to isolate a cavity (23) that is communicated with atmosphere and thus avoids absorbing air due to the negative pressure occurred when releasing the mold.
Abstract translation: 本发明提供了一种模具夹紧装置，其包括固定板（1），可动板（2），模具夹紧缸（3）和模具移动缸（4），其中模具夹紧缸（3）包括 两个或多个具有单个伸出的活塞杆的内部循环气缸和活塞杆的延伸端与可动板（2）或固定板（1）连接。 在气缸体（7）内部和活塞（6）与活塞杆（5）之间设置有逻辑阀。 当逻辑阀的阀芯（10）向右或向左移动时，可以阻挡或打开杆室（21）和非杆室（22）之间的油流，从而克服了大量的缺陷 在模具的释放或关闭期间流入或流出油箱的油以及强的阻力。 此外，隔离板（8）布置在非杆室（22）的内部，以隔离与大气连通的空腔（23），从而避免在释放模具时由于发生负压而吸收空气。
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