Sintokogio, Ltd.

Hisashi Harada

Nagato Uzaki

Kazuo Sugimoto

Yuichi Ogura

Masayoshi Kasazaki

Ryoji Kanayama

Yasuaki Asaoka

Kozo Sugita

Shigeyoshi Kato

Minoru Hirata

Takashi Hanai

Toshihiko Oya

Takuya Nitta

Yasutaro Kawamura

Tadashi Nishida

Hiroyasu Makino

Kimikazu Kaneto

Takehiro Sugino

Tsuyoshi Sakai

Yukiyoshi Funakoshi

Keishiro Kaneda

Kuniyasu Mori

Takehiko Matsumoto

Shigeaki Yamamoto

Shuichi Tsuzuki

Koji Takishita

Yasunori Yoshida

Isao Atsumi

Takato Ishii

Hiroaki Tokita

Etsuya Ohashi

Shigeru Itoh

Osamu Motomatsu

Kunihiro Hashimoto

A green sand mold molding sensor that can measure the pressure applied to a parting plane of a green sand mold in order to determine the quality (casting mold strength) of a molded green sand mold. A green sand mold molding sensor including a pressure sensor for evaluating the molding properties of a green sand mold molded by a casting mold molding machine, wherein the pressure sensor is embedded in a plate having a model attached thereto.

Green sand mold forming sensor and green sand mold formability evaluation method

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.

Foundry sand supply device, foundry sand inspection system, and foundry sand collection method

A mold shake-out system to suppress the effects of an excessive or insufficient water sprinkling amount in mold shake-out that separates a mold, into which castings have been poured, into castings and molding sand, the mold shake-out system including: a shake-out device that separates the castings and a mold into the castings and the molding sand; a water sprinkling portion that sprinkles water in the shake-out device; and a control device that controls the water sprinkling amount in the water sprinkling portion; the control device adjusting the water sprinkling amount on the basis of molding/pouring data including molding data regarding the mold into which castings have been poured and which is loaded into the shake-out device, pouring data regarding molten metal that forms the castings, and time data from when the molten metal is poured into the mold until when the mold is loaded into the shake-out device.

Mold shakeout system

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.

Water injection and kneading system for green molding sand

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.

Property adjusting system and property adjusting method for kneaded sand

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 () of measuring the properties of the molding sand just before the molding sand is supplied to a molding machine () and a step () 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.

Method for managing casting process based on properties of molding sand

A casting apparatus includes an upper frame to which an upper mold is attached, a lower frame to which a lower mold is attached, an opening/closing mechanism, a first main link member whose central portion is provided with a rotating shaft, a first auxiliary link member whose central portion is provided with a rotating shaft, and a drive unit. The upper frame, the lower frame, the first main link member, and the first auxiliary link member constitute a first parallel link mechanism.

Casting device and mold replacement method for casting device

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.

Mixing and water adjusting method for foundry sand

A core molding machine which can be made smaller while having a favorable core sand filling property is provided. The machine comprises a core box having a pair of laterally separable dies and a sand filling device, having a blow head disposed under the core box, for filling the core box with core sand directed upward from the blow head; the blow head having a sand blow chamber for guiding the core sand to the core box while being connected to the core box and a sand storage chamber communicating with the sand blow chamber; the sand filling device having a compressed air supply unit for supplying a compressed air for blowing the core sand into the core box and an aeration air supply unit for supplying an aeration air for floating and fluidizing the core sand within the sand blow chamber.

Core-molding device, and core-molding method

The core sand filling method comprises a step of operating an aeration air supply means, so as to float and fluidize core sand within a sand blow chamber and, when a pressure Pf of the sand blow chamber measured by the first pressure sensor reaches a first pressure, operating a compressed air supply means and a step of stopping the aeration air supply means and compressed air supply means from operating when each of the pressure Pf within the sand blow chamber and a pressure Pc within a sand storage chamber is a second pressure or higher while a differential pressure &#x394;P=Pc&#x2212;Pf is a third pressure or lower.

Core sand filling method

The core sand filling device includes the core box, a blow head which is placed below the core box so as to move up and down in a relative manner to the core box and divided into a sand blowing chamber and a sand storage chamber that are communicatively connected to each other, a compressed air supply unit which is communicatively connected to the sand storage chamber and supplies compressed air into the sand storage chamber, an aeration air supply unit which is communicatively connected to the sand blowing chamber and supplies into the sand blowing chamber aeration air for suspending and fluidizing core sand inside the sand blowing chamber, and an exhaust valve which is communicatively connected to the sand blowing chamber and exhausts compressed air remaining in the sand blowing chamber.

Core sand filling device and core sand filling method in core making machine

This invention relates to a device of electrodes for measuring water content in foundry sand, an apparatus for measuring water content in foundry sand, and a method and an apparatus for supplying water to a sand mixer. When the prior art device for measuring water content in the foundry sand is disposed in it, the size or shape of the device of the electrodes is limited. To solve this problem, the device of the electrodes for measuring water content in the foundry sand by supplying an electric current to it is comprised of a plurality of conductive elementsconcentrically disposed with certain intervals between them in a longitudinal direction, wherein the elements form an annular shape, a retaining elementto retain the plurality of the conductive elements, wherein the retaining elementhas an electrical insulating property and a cylindrical shape having the same diameter as the conductive elements, and the two conductive wiresto connect alternate respective elements of the plurality of conductive elementsso that the conductive elementsform two poles, wherein the two conductive wirespass through the cavity in the retaining element

Device of electrodes for measuring water content in foundry sand, an apparatus for measuring water content in foundry sand, and a method and an apparatus for supplying water to a sand mixer

A sand-introducing device that uses air for introducing molding sand in a molding space or spaces is provided. The device is provided with air-permeable partitioning plates that define a double-walled structure together with the wall of the body of the device. The air-permeable partitioning plates are easily produced, they can easily inject pressurized air of a desired pressure, and they will not need regular maintenance. The body of the device, which acts as a pressure tank, defines a double-walled structure together with the air-permeable partitioning plates (), thereby defining chambers (). In the sand-introducing device that uses air, while molding sand is fluidized by pressurized air injected from the air-permeable partitioning plates, it is introduced in a molding space. Each air-permeable partitioning plate is made of a porous resin or metal.

Sand-introducing device using air, and method and apparatus for producing mold

Sand-introducing device using air, and method and apparatus for producing a mold

A method and apparatus are provided to process collected sand. This method and apparatus allow the moisture content to be adjusted and the addition of a binder to be facilitated to renew the collected sand as casting sand for future use. Also, defective castings are prevented when they are made by a main mold using the renewed casting sand. The sand-collecting means can be compact. The method is performed and the apparatus is operated by separating a main mold of green sand, after casting is conducted, into parts unaffected and affected by the molten metal heat, adjusting the moisture content of the part unaffected by molten metal heat for use as facing sand in the next main mold making, and adding a binder and adjusting the moisture content of the part affected by the molten metal heat for use as back sand in making the next main mold.

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Toyokawa, Japan

Hisashi Harada