Abstract: A foundry sand reserving method includes reserving, acquiring, setting, and controlling. The reserving includes reserving foundry sand capable of being supplied to a foundry sand related device in at least one reserving unit. The acquiring includes acquiring a reserve amount of the foundry sand in at least one reserving unit, a charge amount of the foundry sand to the reserving unit, and a supply amount of the foundry sand to a foundry sand related device. The setting includes setting a threshold for the reserve amount based on a predetermined aging time of the foundry sand and the charge amount and the supply amount acquired in the acquisition step. The controlling includes controlling at least one selected from the group consisting of the charge amount and the supply amount based on the reserve amount acquired in the acquiring step and the threshold set in the setting step.

Abstract: This invention estimates an active clay content in mixed sand. A processor (51) of an information processing device (50) executes: an obtaining step of obtaining information concerning mixed sand with which green sand containing clay is mixed; and an estimating step of estimating an active clay content in the mixed sand in accordance with the obtained information concerning the mixed sand.

Abstract: A schedule optimization system capable of easily solving a complicated optimization problem without using past assets is developed. A storage unit 120 includes an optimization problem description table indicating an optimization problem for drafting a schedule in a schedule optimization system 300, a scheduled data table indicating a value of a constant being a fixed element in the optimization problem, and a template as a pattern of a source code of the schedule optimization system. A processing unit 130 generates the source code of the schedule optimization system by inserting information based on the optimization problem description table and the scheduled data table into the template.

Abstract: Provided is a foundry sand supply device capable of collecting foundry sand at an arbitrary timing. The foundry sand supply device includes a bucket collecting the foundry sand, a bucket drive unit rotatably supporting the bucket and driving the bucket, and a moving unit moving the bucket drive unit close to and away from the foundry sand, and moving the bucket drive unit between a collecting position to collect the foundry sand and a supply position to supply the foundry sand.

Abstract: A molding sand supply device according to one aspect includes a sampling tool to sample molding sand, and a conveying device to convey the molding sand sampled by the sampling tool to a supply position along a bent conveyance path.

Abstract: Inner panels including at least one built-in heat pipe connected in a circumferential direction are provided. In a heat pipe panel including the built-in heat pipe, apparatuses are mounted on the outer side of the plural inner panels connected in the circumferential direction to diffuse generated heat of the apparatuses to the circumferential direction of the inner panels. Webbed panels including a built-in heat pipe horizontally arranged and having heat radiation surfaces are radially arranged at corners of the inner panels as well as a heat pipe is horizontally built in and heat radiation surfaces are arranged also on outer panels facing the inner panels to thermally connect the heat pipes to one another.

Abstract: 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.

Abstract: A water supply and kneading system for green sand, including: a weighing hopper that stores green sand that has been weighed; a kneading machine that kneads the green sand and water; a sand loading means for releasing the green sand in the weighing hopper into the kneading machine, or shutting off the release; a water supply device that supplies water to the green sand in the kneading machine; a moisture sensor that includes a pair of electrodes and measures the moisture content of the green sand stored in the weighing hopper by measuring an electric potential difference between the electrodes; and a kneading control device that controls the amount of water supplied by the water supply device and controls the sand loading means on the basis of the output of the moisture sensor.

Abstract: 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.

Abstract: A kneaded sand property adjusting system including: a kneading device; a kneaded sand storage hopper that stores kneaded sand; a molding device that molds the sand conveyed from the sand storage hopper; a control device that controls water injection until a property of the sand meets a kneaded sand target property; and kneaded sand amount measuring instruments that measure the amount of sand stored in storage hopper, wherein the control device stores the batch number of each kneaded batch and the kneaded sand property measured at the time of kneading, calculates the batch number of the kneaded batch that corresponds to the molding sand being loaded into the molding device by the kneaded sand amount measuring instruments, associates the property of the molding sand with the property stored on by the batch number that was calculated, and corrects the target property on the basis of the values of the properties.

Abstract: Provided is a foundry sand supply device capable of collecting foundry sand at an arbitrary timing. The foundry sand supply device includes a bucket collecting the foundry sand, a bucket drive unit rotatably supporting the bucket and driving the bucket, and a moving unit moving the bucket drive unit close to and away from the foundry sand, and moving the bucket drive unit between a collecting position to collect the foundry sand and a supply position to supply the foundry sand.

Abstract: A method for managing a casting process based on measured properties of molding sand is provided so that casting defects or energy used can be reduced by changing the molding conditions for the mold to be produced or changing the steps after molding. The method for managing a casting process based on the properties of the molding sand includes a step (1) of measuring the properties of the molding sand just before the molding sand is supplied to a molding machine (40) and a step (2) of determining if the measured properties of the molding sand comply with predetermined properties so as to then switch between a step of molding a mold when the measured properties do comply with the predetermined properties and a step of molding a mold when the measured properties do not comply with the predetermined properties.

Abstract: A water supply and kneading system for green sand, including: a weighing hopper that stores green sand that has been weighed; a kneading machine that kneads the green sand and water; a sand loading means for releasing the green sand in the weighing hopper into the kneading machine, or shutting off the release; a water supply device that supplies water to the green sand in the kneading machine; a moisture sensor that includes a pair of electrodes and measures the moisture content of the green sand stored in the weighing hopper by measuring an electric potential difference between the electrodes; and a kneading control device that controls the amount of water supplied by the water supply device and controls the sand loading means on the basis of the output of the moisture sensor.

Abstract: A return sand cooling system, including: a sand moisture and temperature measuring instrument measuring the moisture content and temperature of the return sand; a control device determines an appropriate water addition amount, which is an amount of water to be added to the return sand; a water-sprinkling cooling device adds water of the appropriate water addition amount to the return sand and cools the return sand by the latent heat of vaporization of water to obtain the cooled return sand; an air introducing device that introduces air into the water-sprinkling cooling device; and an introduced air temperature and humidity measuring instrument measures the temperature and humidity of introduced air to be introduced into the water-sprinkling cooling device; the control device determining the appropriate water addition amount on the basis of the moisture content and temperature of the return sand, and the temperature and humidity of the introduced air.

Abstract: A kneaded sand property adjusting system including: a kneading device; a kneaded sand storage hopper that stores kneaded sand; a molding device that molds the sand conveyed from the sand storage hopper; a control device that controls water injection until a property of the sand meets a kneaded sand target property; and kneaded sand amount measuring instruments that measure the amount of sand stored in storage hopper, wherein the control device stores the batch number of each kneaded batch and the kneaded sand property measured at the time of kneading, calculates the batch number of the kneaded batch that corresponds to the molding sand being loaded into the molding device by the kneaded sand amount measuring instruments, associates the property of the molding sand with the property stored on by the batch number that was calculated, and corrects the target property on the basis of the values of the properties.

Abstract: Inner panels including at least one built-in heat pipe connected in a circumferential direction are provided. In a heat pipe panel including the built-in heat pipe, apparatuses are mounted on the outer side of the plural inner panels connected in the circumferential direction to diffuse generated heat of the apparatuses to the circumferential direction of the inner panels. Webbed panels including a built-in heat pipe horizontally arranged and having heat radiation surfaces are radially arranged at corners of the inner panels as well as a heat pipe is horizontally built in and heat radiation surfaces are arranged also on outer panels facing the inner panels to thermally connect the heat pipes to one another.

Abstract: A mixing and adjusting method for foundry sand includes calculating a total supplied water amount until a compactability (CB) value of mixed sand becomes larger than a lower limit value of a target CB value range, determining the total supplied water amount as a predetermined amount of water associated with an electric resistance of the foundry sand, and determining a ratio of a variation in the CB value corresponding to an additionally supplied water amount from the additionally supplied water amount during an additional water pouring and the CB value of the mixed sand.