Sintokogio, Ltd.

Toyohashi University of Technology

University of Yamanashi

Fujiwa Denki Co., Ltd.

National University Corporation Toyohashi University of Technology

Kazuhiro Ota

Takeshi Sonohara

Makio Suzuki

Yoshiyuki Noda

Kazuhiko Terashima

Takanori Miyoshi

Hiroyasu Makino

Tadashi Nishida

Yoshiyasu Makino

Takehiro Sugino

Hideaki Kaga

Toshiyuki Hyodo

Yuichi Ogura

Junichi Iwasaki

Hiroki Matsuoka

Yoshimitsu Ichino

Tsutomu Seki

Koichi Kato

Tatsuya Aoki

Yuta Sueki

Ryuichi Kawakami

Ryusuke Fukushima

A management method for managing a production line including a plurality of steps includes carrying out a first displaying process and carrying out a second displaying process, wherein, among a first indicator group (I), an indicator corresponding to a certain step functions as a GUI element configured to change a screen to be displayed on a display from a top screen (G) to a second screen.

Management method and management device

Provided is a technique that allows an operator or the like to easily perceive a tendency of defects which are present in molds or patterns. A display device displays a result of inspection of a plurality of molds or a plurality of patterns which are inspection target objects. The display device classifies the inspection target objects into a plurality of groups, generates, for each of the plurality of groups, a heat map image from a result of defect inspection of one or more of inspection target objects which are classified into the each of the plurality of groups, the heat map image representing a spatial distribution of defect occurrence frequencies; and causes a display to display one or more of the heat map images generated, the one or more heat map images corresponding to one or more groups specified by a user from among the plurality of groups.

Inspection result display device and storage medium

Provided is the technique that allows an operator or the like to easily grasp a defect contained in a mold. A display control device is configured to carry out: a determination process in which a feature amount of each of defects contained in a mold is determined with reference to an image obtained by image capture of a mold; and a display process in which the image is displayed on a display such that each of the defects in the image is emphasized by a method which is determined according to the determined feature amount.

Display control device and storage medium

Provided is the technique that allows an operator or the like to grasp a failure of a mold to be worked in the work area. An inspecting device inspects each of a plurality of molds conveyed along a conveyance path with use of image data generated by a sensor that captures an image of each of the plurality of molds. A display control device is configured to carry out: a storage process in which inspection results of the individual molds are stored in a memory; a determination process in which one or more molds satisfying a predetermined condition of a positional relation to a display are determined from among the plurality of molds conveyed along the conveyance path; and a display control process in which one or more inspection results of the respective one or more molds having been determined in the determination process are displayed on the display.

Provided is the technique that allows an operator or the like to easily grasp in which part of a mold a defect has been detected. A display control device is configured to carry out a display process in which a marker indicating a defect of a mold determined by an inspection result, which is obtained by an inspection of molds, is optically displayed on the mold.

Provided is a display apparatus that is capable of displaying a relationship between sand properties measured as time series. The display apparatus displays (i) a relationship between pieces of measured first sand property data and pieces of measured second sand property data, obtained in a first predetermined period, together with first and second reference ranges set for the first and second sand properties and (ii) a relationship between pieces of measured third sand property data and pieces of measured fourth sand property data, obtained in a second predetermined period, together with third and fourth reference ranges set for the third and fourth sand properties.

Display device

An inspection device is a device that inspects the appearance of a target, including: an imaging device configured to image the target from a first direction; an illuminating unit configured to apply light to the target; and a controller configured to acquire a first inspection image by causing the imaging device to image the target to which light is applied from a first position, to acquire a second inspection image by causing the imaging device to image the target to which light is applied from a second position, and to inspect an appearance of the target based on the first inspection image, the second inspection image, and a reference image. The first position and the second position overlap each other when viewed from the first direction.

Inspection device and casting system

A casting plant to produce a cast product with a high quality and a method for managing data for molding the mold and data on the conditions of the molten metal in the casting plant are provided. The controller () for the molding unit issues a serial number for the mold to a mold (M). The controller () for the unit for conveying the molds shifts the serial number for the mold in accordance with a movement of the mold. It also gathers data on the mold and links the data for molding the mold with the serial number for the mold. When the molten metal is poured from the ladle into the mold, the controller () for the unit for pouring the molten metal sends to the computer () for controlling the casting plant the serial number for the ladle that is linked with the data on the conditions of the molten metal and that is linked with the serial number for the mold.

Casting plant and method for managing data for molding molds and data on conditions of molten metal in casting plant

A leakage of a molten metal is suppressed at the time of pouring. A control method for an automatic pouring apparatus according to one embodiment includes: calculating a dropping position of a molten metal on a horizontal surface passing through a height position of a sprue, a flow velocity of the molten metal in the dropping position, and a radius of a sectional surface of the molten metal on the horizontal surface, on the basis of a dropping trajectory of the molten metal flowing out from a discharge port, generating an objective function which is relevant to a total weight of the molten metal flowing into a mold from a ladle and depends on a distance between the discharge port and the center of the sprue in a predetermined direction, on the basis of the dropping position, the flow velocity of the molten metal in the dropping position, the radius of the sectional surface of the molten metal on the horizontal surface, a radius of the sprue, a flow rate of the molten metal flowing out from the discharge port, and a density of the molten metal, and calculating the distance between the discharge port and the center of the sprue in the predetermined direction, in which the total weight of the molten metal flowing into the mold from the ladle is maximized, on the basis of the objective function.

Control method for automatic pouring apparatus, automatic pouring apparatus, control program, and computer-readable recording medium storing control program

To provide a surface property inspection device and method capable of inspecting the surface treatment state of treated material subjected to surface treatments. A surface property inspection deviceincludes an AC power supply, an AC bridge circuit, and an evaluation apparatus, and the AC bridge circuitis formed by a variable resistorwith a distribution ratio of &#x3b3;, a reference detector, and an inspection detector. The inspection detectorincludes a coilwound so as to oppose the surface property inspection area of the test object M; an eddy current is excited in the test object M by supplying AC power to the coil. A reference test object S with the same structure as the test object M is placed in the reference detectorto cancel inspection environment effects.

Surface property inspection device and method

A method for controlling the respective input voltages transmitted to a servomotor that tilts the ladle such that the molten metal that flows from the ladle drops accurately into the pouring gate in the mold, a servomotor that moves the ladle back and forth, and a servomotor that moves the ladle up and down, by using a computer. In the method, a mathematical model of the area on which the molten metal that flows from the ladle will drop is produced, and then the inverse problem of the produced mathematical model is solved. In view of the effect of a contracted flow, the position on which molten metal drops is estimated by the estimating device for estimating the pouring rate and the estimating device for estimating the position on which molten metal will drop.

Method for automatically pouring molten metal by tilting a ladle and a medium for recording programs for controlling a tilt of a ladle

A method of automatically pouring molten metal from a ladle into a mold by tilting the ladle. In the method, the height of molten metal located above a molten metal outlet and the weight of molten metal flowing out of the ladle are estimated using an expanded Kalman filter on the basis of: the weight of the molten metal flowing out of the ladle, said weight being measured using a load cell; the voltage inputted to a servo motor; the angle of tilt of the ladle measured by a rotary encoder; and the position of the ladle in the lifting and lowering direction thereof. The sum of the weight of the molten metal flowing out of the ladle when the ladle is tilted rearward, said weight being estimated from the angle of tilt of the ladle and the height of the molten metal located above the molten metal outlet estimated by the expanded Kalman filter, and the weight of the molten metal flowing out of the ladle estimated by the expanded Kalman filter are estimated as the final weight of outflowing molten metal. The estimated final weight of outflowing molten metal is determined whether or not to be greater than or equal to a specific weight of outflow, and the operation of rearward tilting of the ladle is started on the basis of the result of the determination.

Tilting-type automatic molten metal pouring method, tilting control system, and storage medium having tilting control program stored therein

A method for controlling a ladle to pour molten metal into a mold. The method comprises producing a mathematical model describing a relationship between a measured electrical voltage supplied to a servomotor for tilting the ladle and a flow rate of the molten metal flowing out of the ladle when the ladle is tilted; solving an inverse problem of the mathematical model; estimating the flow rate of the molten metal using a state observer having an exponential damping that uses an extended Kalman filter, based on the measured electrical voltage and a weight of the molten metal poured into the mold; processing the flow rate of the molten metal and a target flow rate of the molten metal with a gain-scheduled PI controller; obtaining a target electrical voltage to be supplied to the servomotor; and controlling the servomotor based on the target electrical voltage.

Method for controlling a process for automatically pouring molten metal, a system for controlling a servomotor of an automatic pouring apparatus, and a medium for recording programs for controlling a tilting of a ladle

A tilting-type automatic pouring method for pouring molten metal from a ladle with an outflow position into a mold. The method includes tilting the ladle forward to pour molten metal into the mold, measuring a weight of poured molten metal, calculating a flow rate of the molten metal flowing out of the ladle based on the measured weight of poured molten metal, estimating a weight of molten metal that will be poured during a backward tilting. The method also includes estimating a total weight of molten metal based on the measured weight of poured molten metal and the estimated weight of molten metal that will be poured during the backward tilting and comparing the estimated total weight of molten metal to a predetermined weight. When the estimated total weight is equal to or larger than the predetermined weight, the backward tilting is started.

Tilting-type automatic pouring method and storage medium

A method for controlling a ladle to pour molten metal into a sprue of a mold. The method includes obtaining a mathematical model describing a locus of positions where the molten metal flowing from the ladle drops on an upper surface of the sprue. The method further includes solving an inverse problem of the mathematical model, estimating a position where the molten metal drops using a result of the solving of the inverse problem, and determining target voltages to be supplied to servomotors controlling the ladle. At least the target voltage to be supplied to one of the servomotors is determined based on the estimated position. The method also includes controlling the servomotors based on respective target voltages.

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Toyokawa, Japan

Kazuhiro Ota