Abstract: A continuous mixing apparatus for a powder/granular material and a viscous liquid, with a mixing cylinder, a shaft member which is on a central axis of the mixing cylinder and rotates inside the mixing cylinder, and a plurality of mixing paddles disposed on a surface of the shaft member, wherein the mixing cylinder is with a powder/granular material feed port on one end portion, a mixed material discharge port on the other end portion, and a viscous liquid injection unit between the powder/granular material feed port and the mixed material discharge port, and the plurality of mixing paddles are disposed on the shaft member so as to form a spiral around the central axis, the plurality of mixing paddles being, in at least a portion between the viscous liquid injection unit and the mixed material discharge port, attached to provide first rows having an attachment angle of 5° to 60°.

Abstract: A pressurized tank is provided in which no air flows back from a piping for conveying powder to the pressurized tank. A pressurized tank (A) is used for a device (B) for intermittently feeding a predetermined amount of powder to a piping (7) for conveying the powder when the powder is conveyed in a plug flow through the piping (7) by means of compressed air.

Abstract: A method and an apparatus for evaluating the degree of contamination of foundry sand are provided that can measure the electrical conductivity of the foundry sand to evaluate the degree of contamination based on the measured electrical conductivity. The method for evaluating the degree of contamination of the foundry sand comprises the steps of preparing a standard sample (1, 101) and a comparative sample (201) of the foundry sand, measuring the electrical conductivity of the standard and comparative samples after a wetting treatment of them has been carried out, and evaluating the degree of contamination based on the measured electrical conductivity.

Abstract: Teaching storage means stores teaching data created on the basis of signals from a first pulse generator, a first shaft detector, a second pulse generator, and a second shaft detector, in a storage unit as a sequence control program of molding operation of a self-hardening mold when teaching operation of throwing kneaded self-hardening foundry sand from a discharge port into a molding flask is performed by manually moving a conveyor arm and a kneading arm. Molding playback means reads out the sequence control program from the storage unit to control and drive a first pivot motor and a second pivot motor on the basis of the sequence control program to pivot the conveyor arm and the kneading arm, and then throws the self-hardening foundry sand from the discharge port of the kneading arm into the molding flask to reproduce the molding operation.

Abstract: A continuous mixing apparatus for a powder/granular material and a viscous liquid, with a mixing cylinder, a shaft member which is on a central axis of the mixing cylinder and rotates inside the mixing cylinder, and a plurality of mixing paddles disposed on a surface of the shaft member, wherein the mixing cylinder is with a powder/granular material feed port on one end portion, a mixed material discharge port on the other end portion, and a viscous liquid injection unit between the powder/granular material feed port and the mixed material discharge port, and the plurality of mixing paddles are disposed on the shaft member so as to form a spiral around the central axis, the plurality of mixing paddles being, in at least a portion between the viscous liquid injection unit and the mixed material discharge port, attached to provide first rows having an attachment angle of 5° to 60°.

Abstract: To provide an apparatus for reclaiming foundry sand that has a fluidized bed that prevents slits from being clogged.

Abstract: A pressurized tank is provided in which no air flows back from a piping for conveying powder to the pressurized tank. A pressurized tank (A) is used for a device (B) for intermittently feeding a predetermined amount of powder to a piping (7) for conveying the powder when the powder is conveyed in a plug flow through the piping (7) by means of compressed air.

Abstract: Teaching storage means stores teaching data created on the basis of signals from a first pulse generator, a first shaft detector, a second pulse generator, and a second shaft detector, in a storage unit as a sequence control program of molding operation of a self-hardening mold when teaching operation of throwing kneaded self-hardening foundry sand from a discharge port into a molding flask is performed by manually moving a conveyor arm and a kneading arm. Molding playback means reads out the sequence control program from the storage unit to control and drive a first pivot motor and a second pivot motor on the basis of the sequence control program to pivot the conveyor arm and the kneading arm, and then throws the self-hardening foundry sand from the discharge port of the kneading arm into the molding flask to reproduce the molding operation.

Abstract: To provide an apparatus for reclaiming foundry sand that has a fluidized bed that prevents slits from being clogged. The apparatus comprises a tank (3) for reclaiming the foundry sand, a tank (4) for fluidization, an upper portion of which in an upstream side is connected to a bottom of the tank for reclaiming the foundry sand, the tank for fluidization transporting the reclaimed foundry sand and fine powder that drop from the tank for reclaiming the foundry sand, a dust hood (5), and a lower portion of which communicates with an upper portion of the tank for fluidization in a downstream side, the dust hood collecting the fine powder in the tank for fluidization, wherein a fluidized bed (6) in the tank for fluidization has a plurality of inverted.

Abstract: A chassis includes: a flat plate portion including a first major surface and a second major surface facing the first major surface; a protruding portion provided on an outer edge of the flat plate portion and protruding in a direction crossing the first and second major surfaces; and a seal portion provided on the outer edge of the flat plate portion.

Abstract: An apparatus for the reclamation of molding sand by which the quality of the reclaimed molding sand is enhanced. The apparatus for reclamation of molding sand includes a part for feeding the molding sand 1, which part has a sand falling port at its bottom, a rotary drum 2 disposed below the part for feeding the molding sand 1 and being rotatable horizontally, a motor driving means 4 for rotating the rotary drum 2 by an electric motor 3, a roller 5 disposed in the rotary drum 2 and spaced apart therefrom, and a cylinder 6 connected to the roller 5 that presses the roller 5 toward the rotary drum 2.

Abstract: A pressure tank having a simple structure to intermittently feed powder to a conveying pipe, and a method for determining the intervals for feeding the powder to the conveying pipe. The pressure tank includes a tank body used as a structure of a pressure vessel having a receiving port at its upper portion and a discharging port at its lower portion, a first check valve disposed just under the receiving port so that it can freely move up and down, and so that it can close the receiving port by its upward movement that is caused by means of compressed air, and a second check valve disposed just under the discharging port so that it can freely move up and down, and so that it can close the discharging port by its upward movement that is caused by means of compressed air.

Abstract: A luminescent device including a die pad lead composed of an inner lead and an outer lead, a case for uniting the inner lead, a light emitting diode chip mounted on a first predetermined position of one main surface of the inner lead, and a transparent sealing material portion for sealing the light emitting diode chip and a part of the one main surface. The case seals the inner lead other than an area sealed by the transparent sealing material portion, and the inner lead of the die pad lead has bending portions at least two places including a first bending portion and a second bending portion. A rear of the first predetermined position in the inner lead of the die pad lead is exposed outside the case, and the second bending portion is formed in the case so that the outer lead extends from a side of the case.

Abstract: The object of the invention is to provide an apparatus for reclamation of molding sand by which the quality of the reclaimed molding sand is enhanced. The apparatus for reclamation of molding sand comprises a part for feeding the molding sand 1, which part has a sand falling port at its bottom, a rotary drum 2 disposed below the part for feeding the molding sand 1 and being rotatable horizontally, a motor driving means 4 for rotating the rotary drum 2 by an electric motor 3, a roller 5 disposed in the rotary drum 2 and spaced apart therefrom, and a cylinder 6 connected to the roller 5 that presses the roller 5 toward the rotary drum 2.

Abstract: This invention provides a pressure tank having a simple structure to intermittently feed powder to a conveying pipe, and a method for determining the intervals for feeding the powder to the conveying. The pressure tank of this invention, which is used for an apparatus for intermittently feeding a predetermined amount of powder to a conveying pipe, comprises the following: a tank body used as a structure of a pressure vessel having a receiving port at its upper portion and a discharging port at its lower portion, a first check valve disposed just under the receiving port so that it can freely move up and down, and so that it can close the receiving port by its upward movement that is caused by means of compressed air, and a second check valve disposed just under the discharging port so that it can freely move up and down, and so that it can close the discharging port by its upward movement that is caused by means of compressed air.

Abstract: A chassis includes: a flat plate portion including a first major surface and a second major surface facing the first major surface; a protruding portion provided on an outer edge of the flat plate portion and protruding in a direction crossing the first and second major surfaces; and a seal portion provided on the outer edge of the flat plate portion.

Abstract: A lens-equipped light-emitting diode device of the present invention includes a lead frame in which an electrode is formed, a light-emitting diode which is mounted on the electrode of the lead frame, an outer peripheral unit which is made of a first resin, which is provided on the lead frame, and in which a hollow portion is formed while an area including at least the light-emitting diode is exposed in the outer peripheral unit, a sealing portion which is made of a second resin filled in the lead frame of the hollow portion of the outer peripheral unit, and which seals the light-emitting diode, and a lens unit made of a third resin laminated and filled in the sealing portion.

Abstract: A lens-equipped light-emitting diode device of the present invention includes a lead frame in which an electrode is formed, a light-emitting diode which is mounted on the electrode of the lead frame, an outer peripheral unit which is made of a first resin, which is provided on the lead frame, and in which a hollow portion is formed while an area including at least the light-emitting diode is exposed in the outer peripheral unit, a sealing portion which is made of a second resin filled in the lead frame of the hollow portion of the outer peripheral unit, and which seals the light-emitting diode, and a lens unit made of a third resin laminated and filled in the sealing portion.

Abstract: A luminescent device including a die pad lead composed of an inner lead and an outer lead, a case for uniting the inner lead, a light emitting diode chip mounted on a first predetermined position of one main surface of the inner lead, and a transparent sealing material portion for sealing the light emitting diode chip and a part of the one main surface. The case seals the inner lead other than an area sealed by the transparent sealing material portion, and the inner lead of the die pad lead has bending portions at least two places including a first bending portion and a second bending portion. A rear of the first predetermined position in the inner lead of the die pad lead is exposed outside the case, and the second bending portion is formed in the case so that the outer lead extends from a side of the case.