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公开(公告)号：US20230382033A1
公开(公告)日：2023-11-30
申请号：US18322103
申请日：2023-05-23
Applicant: THE JAPAN STEEL WORKS, LTD.
Inventor： Takuya YUFU , Akihiro NAITO , Yasutaka OTSUJI
CPC classification number: B29C45/74 , B29C45/80 , B29C35/0805 , B29C2045/2748
Abstract: A heating cylinder heater includes a plurality of infrared heaters disposed around a heating cylinder in a non-contact manner with respect to the heating cylinder, a heat insulating material provided outside the infrared heaters, and a cover configured to cover the heat insulating material. The cover has two or more opening portions, and a part or all of the two or more opening portions are each provided with an opening-closing device that is configured to open and close the corresponding opening portion.
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公开(公告)号：US11813783B2
公开(公告)日：2023-11-14
申请号：US17023482
申请日：2020-09-17
Applicant: SEIKO EPSON CORPORATION
Inventor： Kakeru Sasagawa , Kei Yokota , Kenta Anegawa , Seiichiro Yamashita , Yuji Shinbaru , Kazunobu Maruyama , Daichi Miyashita , Hiroki Takano , Riona Hayashi
CPC classification number: B29C45/7626 , B29C45/1769 , B29C45/42 , B29C45/47 , B29C45/60 , B29C45/62 , B29C45/74
Abstract: An injection molding system includes: an injection molding machine; an inspection device including a first placement unit, a second placement unit, an inspection unit, and a moving unit configured to change a relative position between the first placement unit and the inspection unit and a relative position between the second placement unit and the inspection unit; a third placement unit; a robot configured to convey the molded object; and a control device. The control device controls the injection molding machine, the robot, and the inspection device so as to mold a first molded object during a first molding period, inspect the first molded object placed on the first placement unit during a first inspection period, convey the first molded object after inspection from the first placement unit to the third placement unit during a first conveyance period, mold a second molded object during a second molding period, inspect the second molded object placed on the second placement unit during a second inspection period, convey the second molded object after inspection from the second placement unit to the third placement unit during a second conveyance period, and overlap the first inspection period and the second molding period and overlap the second inspection period and the first conveyance period.
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13.发明公开公开(公告)号：US20230311391A1
公开(公告)日：2023-10-05
申请号：US17993403
申请日：2022-11-23
Applicant: SUMITOMO HEAVY INDUSTRIES, LTD.
Inventor： Yutaka TSUTSUMI , Daigo HOTTA , Shun SHIBUYA , Yuki MATSUI
CPC classification number: B29C45/78 , B29C45/74 , B29C2945/76043 , B29C2945/76658 , B29C2945/76381 , B29C2945/76414 , B29C2945/76531 , B29C2945/7619
Abstract: A technique for managing a shear heating value of a molding material is provided. A control device of an injection molding machine individually controls outputs of a plurality of heating units for a plurality of zones, respectively, into which a cylinder is divided in a flow direction of a molding material. The control device acquires the output of the heating unit provided in a predetermined zone both in a steady state in which an operation of a screw provided inside the cylinder is stopped and at a time of molding at which the operation of the screw is performed, and calculates a difference in output of the heating unit provided in the predetermined zone between at a time of molding and in the steady state.
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公开(公告)号：US20230302701A1
公开(公告)日：2023-09-28
申请号：US17772563
申请日：2020-10-21
Applicant: SHIBAUR MACHINE CO., LTD.
Inventor： Hiroshi OKUYAMA
CPC classification number: B29C45/7646 , B29C45/0001 , B29C45/47 , B29C45/74 , B29K2105/0058
Abstract: There is provided a method for controlling a fluidity index of a molten resin, which can detect the fluidity of a molten resin even during successive molding operations and, in addition, can control the fluidity within a target range. The method includes: assuming that a narrow flow path, formed in a flow path for the molten resin, is a capillary or an orifice, and measuring, based on the amount of a metered molten resin and the back pressure applied to the screw during a metering step, a fluidity index which indicates the fluidity of the metered molten resin; and feeding back the measured fluidity index value and comparing it with a target value, and controlling the back pressure or the rotating speed of the screw so as to eliminate a deviation between the target value and the measured value.
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公开(公告)号：US20230249386A1
公开(公告)日：2023-08-10
申请号：US17997588
申请日：2021-05-14
Applicant: FANUC CORPORATION
Inventor： Kensuke NAMIKI
Abstract: Provided are an injection molding machine control device and a program that can improve the accuracy of a calculated heat dissipation quantity of a heater. The present invention is provided with: an operation information acquisition unit 12 that acquires the heater output of a heater 102 and the set temperature of the heater 102 for a prescribed period immediately preceding a prescribed time as operation information; a surface temperature acquisition unit 15 that acquires the surface temperature of the heater 102 for the prescribed period included in the acquired operation information; a characteristic information acquisition unit 21 that acquires characteristic information on a characteristic relating to heat dissipation of the heater 102; a results information acquisition unit 14 that acquires, as results information, results of transitions in the ratios of the surface temperature and the set temperature of the heater 102 to transitions in heater output of the heater 102; an estimation unit 17 that estimates the surface temperature of the heater 102 at the prescribed time on the basis of the operation information, the results information, and the acquired surface temperature; and a heat dissipation quantity calculation unit 22 that calculates a heat dissipation quantity from a surface of the heater 102 to the atmosphere on the basis of the estimated surface temperature and the characteristic information.
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Patent Agency Ranking
公开(公告)号：US20230241815A1
公开(公告)日：2023-08-03
申请号：US17888414
申请日：2022-08-15
Inventor： Jui-Hung CHENG
CPC classification number: B29C45/0416 , B29C45/80 , B29C45/74 , B29C45/78 , B29C45/1774 , B29C2945/7604 , B29C2945/76083 , B29C2945/76254 , B29C2945/76568 , B29C2945/76531 , B29C2945/76658 , B29C2945/7618 , B29C2945/76732
Abstract: A molding machine teaching aid includes a frame unit, a molding unit, a material supply unit, a drive unit and a monitoring unit. The molding unit includes a fixed die holder, a movable die holder, and two die kernels respectively and detachably disposed on the fixed and movable die holders. The material supply unit includes a heating module for melting a wire material, and an extruder transporting the molten material into a die cavity formed between the die kernels. The drive unit is controllable to drive movement of the movable die holder relative to the frame unit. The monitoring unit is for a user to operate to control the extruder, the heating module and the drive unit.
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公开(公告)号：US11607831B2
公开(公告)日：2023-03-21
申请号：US17266767
申请日：2019-03-28
Applicant: NISSEI PLASTIC INDUSTRIAL CO., LTD.
Inventor： Yuichi Sakurada , Nanae Naito , Keita Arai , Hozumi Yoda , Hirofumi Murata
Abstract: An injection device has a screw disposed in a heating cylinder so as to be rotatable and movable in an axial direction. An injection stage supports the heating cylinder. A material supplying unit supplies a resin material to the heating cylinder. A material introducing member is disposed between the material supplying unit and the heating cylinder and introduces the resin material from the material supplying unit to the heating cylinder, The material introducing member has a cylindrical portion fitted in a vertical hole provided in the injection stage, and a lower part of the cylindrical portion is in abutting contact with the heating cylinder. A heat medium passage extends inside a sidewall of the cylindrical portion for flowing therethrough a temperature-controlled heat medium, and a heat-insulating air space is formed between an outer circumferential surface of the cylindrical portion and a circumferential surface of the vertical hole.
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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
Applicant: Sterling Products, Inc.
Inventor： Timothy R Hardie , John N Olson
Abstract: 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：US20220402177A1
公开(公告)日：2022-12-22
申请号：US17751000
申请日：2022-05-23
Applicant: THE JAPAN STEEL WORKS, LTD.
Inventor： Akihiro NAITO , Takuya YUFU
Abstract: An injection molding machine for foam molding includes: a heating cylinder; a screw disposed in the heating cylinder; and a plurality of inlet portions provided in the heating cylinder and configured to introduce inert gas. An inside of the heating cylinder includes a starvation section on an upstream side in which a pressure of the resin is decreased, and the inert gas from the plurality of inlet portions being to be supplied in the starvation section. Each of the plurality of inlet portions is provided with a check valve or an opening and closing mechanism. A product P×N of an interval P of the plurality of inlet portions and a number N of the inlet portions is 0.5H or more and 1.71H or less with respect to a length H of the starvation section.
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20.发明申请公开(公告)号：US20220161476A1
公开(公告)日：2022-05-26
申请号：US17455940
申请日：2021-11-22
Applicant: SEIKO EPSON CORPORATION
Inventor： Kakeru SASAGAWA , Kenta ANEGAWA
IPC: B29C45/74 , B29C45/62 , B29C64/209 , B29C64/295 , B33Y30/00
Abstract: A plasticizing apparatus that plasticizes a material includes: a drive motor; a screw rotated by the drive motor and having a groove forming surface in which a groove is formed; and a barrel having a facing surface that faces the groove forming surface and provided with a heater and a communication hole. The barrel includes a first member, and a second member having thermal conductivity different from that of the first member, and the second member is provided closer to the communication hole than the first member.
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