Sintokogio Ltd

Japan

Sintokogio Ltd

Japan
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To provide a carriage for receiving molten metal with a mechanism for moving a ladle up and down and a method for transporting molten metal to safely move a ladle for receiving a molten metal up and down and transport it. The carriage (10) for receiving molten metal to transport the ladle that receives molten metal from a furnace (C) comprises a carriage (20) for travelling on a route (L), guiding columns (30) that are placed on the carriage (20), a frame (40) that horizontally extends from the guiding columns and moves up and down above the carriage (20), a mechanism (50) for moving the ladle, which mechanism is placed on the frame (40) and horizontally moves the ladle, and the driver (60) for moving the frame up and down.


Patent
Sintokogio Ltd. | Date: 2017-08-09

A polishing method includes: a step of preparing a polishing device including a processing member and a suction mechanism configured to generate suction force; a step of setting a workpiece in the processing member; and a step of accelerating abrasive grains fed toward the workpiece to a predetermined speed with an air flow generated by operation of the suction mechanism, and polishing the workpiece by causing the abrasive grains to contact with or collide with the workpiece.


Patent
Sintokogio Ltd. | Date: 2017-01-18

When employing an under-blow scheme for blowing core sand into a core box located on the upper side, a core sand filling method which can favorably fill the core box with core sand, thereby contributing to improving the efficiency in manufacturing cores, is provided. The core sand filling method comprises a step of operating an aeration air supply means 9A, so as to float and fluidize core sand within a sand blow chamber 4 and, when a pressure Pf of the sand blow chamber 4 measured by the first pressure sensor 14 reaches a first pressure P1, operating a compressed air supply means 7A and a step of stopping the aeration air supply means 9A and compressed air supply means 7A from operating when each of the pressure Pf within the sand blow chamber 4 and a pressure Pc within a sand storage chamber 5 is a second pressure P2 or higher while a differential pressure P = Pc - Pf is a third pressure P3 or lower.


The present invention provides a surface property inspection method and apparatus for inspecting the surface properties of a test object subjected to two stages of shot peening. The present invention is an apparatus 1 includes an AC power supply 10, an AC bridge circuit 20, and an evaluation apparatus 30. The AC bridge circuit 20 is constituted by a variable resistor 21, a reference detector 22 and inspection detector 23. The inspection detector 23 includes a coil 23b wound 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 23b. A pass/fail judgment of the first shot peening can be made by inspecting the surface properties of a test object subjected to a second shot peening only after the second shot peening is completed.


An apparatus includes an X-ray generating source adapted to radiate X-rays toward a measuring object; a first detecting element adapted to detect intensity of diffracted X-rays of the measuring object at a first detecting position; a second detecting element adapted to detect intensity of the diffracted X-rays of the measuring object at a second detecting position different from the first detecting position; a moving mechanism adapted to move each of the first detecting element and the second detecting element along a straight line extending in a direction orthogonal to a direction of incidence of the X-rays; a movement control unit adapted to control respective detecting positions of the first detecting element and the second detecting element by driving the moving mechanism; and a stress calculation unit adapted to calculate residual stress of the measuring object based on intensity peaks of the diffracted X-rays detected, respectively, by the first detecting element and the second detecting element each moved by the moving mechanism.


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. The tank (A) has a first pressurized room (6) that is a pressure vessel and that has a funnel-shaped upper partition (3) that has an opening and a funnel-shaped lower partition (4) that also has an opening, a first check valve (9) that is provided beneath the opening of the upper partition (3) of the first pressurized room (6) and is vertically moved so as to be upwardly moved by means of compressed air to close the opening of the upper partition (3), a second check valve (10) that is provided beneath the opening of the lower partition (4) of the first pressurized room (6) and is vertically moved so as to be upwardly moved by means of compressed air to close the opening of the lower partition (4), and an elastic body (24) to upwardly bias the second check valve (10).


Patent
Sintokogio Ltd. | Date: 2017-01-18

Teaching storage means stores teaching data created on the basis of signals from a first pulse generator 14, a first shaft detector 18, a second pulse generator 24, and a second shaft detector 28, in a storage unit 35 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 27 into a molding flask 3 is performed by manually moving a conveyor arm 1 and a kneading arm 2. Molding playback means reads out the sequence control program from the storage unit 35 to control and drive a first pivot motor 12 and a second pivot motor 22 on the basis of the sequence control program to pivot the conveyor arm 1 and the kneading arm 2, and then throws the self-hardening foundry sand from the discharge port 27 of the kneading arm 2 into the molding flask 3 to reproduce the molding operation.


Patent
Sintokogio Ltd. | Date: 2017-05-03

The purpose of the present invention is to provide a shot processing device and a projector such that the projection amount of a projection material can be minimized. The present invention provides a shot processing device (1) equipped with a centrifugal projector (20) for projecting a projection material onto a workpiece and a support mechanism for supporting the workpiece at a processing position where surface processing by the projector can be carried out, wherein the projector is equipped with: a cylindrical control cage (92) which the projection material is supplied into and which has an opening formed on a side wall as a projection material discharge port; and an impeller (100) that has a plurality of blades (104), which are arranged outside of the control cage and extend outward in the radial direction of the control cage, and rotates about the central axis of the control cage, wherein each blade has, disposed on a front-side surface in the rotation direction, a rearward inclined section (110) inclining toward the rear-side in the rotation direction.


Patent
Sintokogio Ltd. | Date: 2017-05-03

A casting apparatus of a casting equipment includes an upper frame to which an upper mold is attached, a lower frame to which a lower mold is attached, a mold closing mechanism, a pair of main link members each of which has a central portion provided with a tilt rotating shaft, a pair of sub-link members each of which has a central portion provided with a sub-link central portion rotating shaft, and a rotation actuator. The upper frame, the lower frame, the main link member, and the sub-link member constitute a parallel link mechanism. Accordingly, as compared with an apparatus of an upper mold flip-up method, a structure to secure strength of each member is simplified to enable weight-saving and simplification. As a result, the casting apparatus is reduced in size to enable a space occupied by the casting equipment to be reduced.


Patent
Sintokogio Ltd. | Date: 2017-04-12

A casting apparatus 50 includes an upper frame 5 to which an upper mold 1 is attached, a lower frame 6 to which a lower mold 2 is attached, an opening/closing mechanism 21, a first main link member 7a whose central portion is provided with a tilt rotating shaft 10, a first auxiliary link member 8a whose central portion is provided with an auxiliary link central portion rotating shaft 15, and a rotation actuator 16. The upper frame 5, the lower frame 6, the first main link member 7a, and the first auxiliary link member 8a constitute a first parallel link mechanism. Accordingly, as compared with an apparatus of an upper mold flip-up system, it is possible to simplify a structure of the casting apparatus 50 to reduce the casting apparatus 50 in size and weight.

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