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公开(公告)号：US20230075712A1
公开(公告)日：2023-03-09
申请号：US17800439
申请日：2021-03-08
申请人： OTTO MANNER GMBH
发明人： Marco HERDEL , Patrick KERN
摘要： An injection mold (1) for the manufacturing of at least one tubular plastic part comprising a first mold half (2) comprising a first mold plate (3) and a second mold half (4) comprising a second mold plate (5) being arranged displaceable with respect to each other in an axial direction (Z) between an open position and a closed position. The injection mold further comprises at least one core (6) protruding from the first mold plate (3) and the second mold plate (4) comprising at least one cavity (7) suitable to receive the core (6) of the first mold half (2) to form a molding cavity (8) in the closed position of the injection mold (1) for receiving molten plastic material therein to form the tubular plastic part. A bushing (9) is advantageously arranged in the second mold half (4) adjacent to a dorsal end (10) of the cavity (7) at least partially displaceable with respect to the second mold plate (4), said bushing (9) comprising a bore (11) in a closed position of the injection mold (1) suitable to receive a tip (12) of the core (6).
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公开(公告)号：US11571845B2
公开(公告)日：2023-02-07
申请号：US16839419
申请日：2020-04-03
申请人： ENGEL AUSTRIA GmbH
发明人： Clemens Kastner
摘要： A method of determining a target value of a state variable includes preparing a mixture of the molding material and the gas with different test values of the state variable, and the mixture is respectively compressed or decompressed. In the compression or decompression step, the state variable of the mixture and/or a further state variable of the mixture is measured directly or indirectly, and determination values of a compression behavior variable characteristic of the compression behavior of the mixture are determined from the measurement values. A criterion directed to a solution state of the gas is checked, and a lowest or highest value of the state variable is deduced at which the gas is in solution in the molding material. The lowest or highest value of the state variable at which the gas is in solution in the molding material is used as the target value.
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公开(公告)号：US20230034476A1
公开(公告)日：2023-02-02
申请号：US17964151
申请日：2022-10-12
发明人： William Henderson , Ling Feng , Andrew Dovey
摘要： A method of performing an injection cycle having a duration comprising: beginning the injection cycle with the valve pins associated with two or more nozzles in a gate closed position, selecting a first one of the two or more nozzles and controllably driving its associated valve pin from the gate closed position to a selected first axial upstream position, upon downstream flow of the injection fluid through a cavity the preselected distance, controllably driving the valve pin associated with the other of the two or more nozzles to a selected second axial position upstream, holding or controllably driving the valve pin associated with the first one of the two or more nozzles in or to one or more reduced flow axial upstream positions that are partially closed.
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公开(公告)号：US11565453B2
公开(公告)日：2023-01-31
申请号：US16404230
申请日：2019-05-06
发明人： Timothy R Hardie , John N Olson
摘要： A temperature control system and method for regulating a liquid temperature in a recirculation system of a molding system includes determining an operating pressure of the liquid in the recirculation system, determining an operating temperature of the liquid in the recirculation system, receiving the operating pressure and the operating temperature, comparing the received operating temperature to a threshold temperature as a function of the operating pressure, and adjusting an output of a heat exchanger in the recirculation system when the operating temperature is beyond the threshold temperature.
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公开(公告)号：US11524435B2
公开(公告)日：2022-12-13
申请号：US17181292
申请日：2021-02-22
发明人： Deven Hansen , Christopher Lee , Lin Yang , Vito Galati
摘要： An injection molding apparatus (10) comprising: an actuator (940, 941, 942) comprised of a rotor (940r, 941r, 942r) having a drive axis (Y) and a driver (940dr, 941dr, 942dr) receiving electrical energy or power from an electrical drive (940d, 941d, 942d), the electrical drive (940d, 941d, 942d) comprising an interface that receives and controllably distributes electrical energy or power in controllably varied amounts to the driver (940dr, 941dr, 942dr), the actuator including a housing (940h, 941h, 942h) within, on or to which the electrical drive (940d, 941d, 942d) is mounted, the housing (940h, 941h, 942h) being mounted in proximity or disposition relative to the heated manifold (40) such that one or the other or both of the housing (940h, 941h, 942h) and the electrical drive (940d, 941d, 942d) are in substantial heat communication or contact with the heated manifold (40).
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公开(公告)号：US11498253B2
公开(公告)日：2022-11-15
申请号：US16437164
申请日：2019-06-11
申请人： IMFLUX INC.
发明人： Bryler Collins , Ethan David Stiefel , Gene Michael Altonen , Brandon Michael Birchmeier , Brian Matthew Burns
摘要： Systems and approaches for controlling an injection molding machine having a first configuration and a mold forming a mold cavity and being controlled according to an injection cycle include obtaining a pattern for a portion of an injection cycle of an injection molding machine having a second configuration and operating the injection molding machine having the first configuration to inject a molten material into the mold cavity. While operating the injection molding machine having the first configuration, the obtained pattern is used to control a portion of the injection cycle.
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公开(公告)号：US20220314513A1
公开(公告)日：2022-10-06
申请号：US17655283
申请日：2022-03-17
发明人： Yasuhiro YAMAMOTO
IPC分类号： B29C45/77 , B29C45/20 , B29C45/30 , B29C45/53 , B29C45/76 , B29C45/78 , B29C64/209 , B29C64/393
摘要： An injection molding machine includes a cylinder that accommodates a molten resin, a discharging nozzle, a piston that discharges the molten resin from the discharging nozzle, and one or more processors configured to execute the following functions. The functions include calculating a target pressure at which a flow rate of the molten resin discharged from the discharging nozzle becomes an indicated flow rate, controlling a pressure of the molten resin in the cylinder such that the pressure becomes the target pressure, acquiring a temperature of the molten resin in the cylinder, and acquiring a pseudo-plastic viscosity corresponding to the temperature of the molten resin. The target pressure is calculated based on the indicated flow rate, the temperature of the molten resin, the pseudo-plastic viscosity, and the size of the discharging nozzle.
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公开(公告)号：US11407158B2
公开(公告)日：2022-08-09
申请号：US16123205
申请日：2018-09-06
申请人： IMFLUX INC.
摘要： In order to reduce oscillations in process variables of an injection molding process, an injection molding machine may be operatively connected to a model database that stores models of injection molding machines and molds. A tuning controller may set initial gain values of a variable-gain proportional-integral-derivative (PID) controller. To set the initial gains, the tuning controller may be configured to obtain, from the model database, a model for a first and second injection molding machines and a model for a mold. The tuning controller may analyze the models to determine a correlation between injection molding machine parameters and mold cycle performance for the mold. Accordingly, the tuning controller may apply the correlation to determine an initial gain value for a least one of the first, second, and third gains of the PID controller. The tuning controller may then set the initial gain values for the PID controller.
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公开(公告)号：US20220203592A1
公开(公告)日：2022-06-30
申请号：US17438206
申请日：2019-12-09
发明人： Hozumi YODA , Nobukazu KASUGA , Hirofumi MURATA
摘要： A molding injection pressure and a molding clamping force are determined in advance to obtain a parting opening amount, which is a predetermined gap, between a movable mold and a fixed mold of a mold during injection filling. The molding injection pressure and the molding clamping force are determined to obtain a molding injection pressure capable of molding a good product and a mold clamping force capable of molding a good product, respectively, thereby setting a specific molding condition, setting a fast injection speed from the start of injection, which is higher than the injection speed set by the specific molding condition, and setting a fast injection section for continuing the fast injection speed as a fast injection condition, mold-clamping the mold by the molding clamping force during molding, and setting the molding injection pressure to a limit pressure, injecting and filling resin into a mold by the fast injection condition from the start of injection, and injecting and filling resin by the specific molding condition when the fast injection section ends.
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公开(公告)号：US11331838B2
公开(公告)日：2022-05-17
申请号：US17533319
申请日：2021-11-23
发明人： Harald Schmidt
IPC分类号： B29C45/77 , B29C45/27 , B29C45/28 , B29C45/76 , B29C45/78 , B29C45/00 , B29K59/00 , B29K69/00
摘要： A system is disclosed for micro-molding articles. The system melts and pre-pressurizes thermoplastic material to a first level, within a plasticizing barrel. The melt pressure of the thermoplastic material is manipulated to a second level, within a hot runner. The melt pressure of the thermoplastic material is manipulated to an ultra-cavity packing pressure within a valve gate nozzle.
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