公开(公告)号：US11262254B2

公开(公告)日：2022-03-01

申请号：US16826868

申请日：2020-03-23

Applicant: SINTOKOGIO, LTD.

Inventor： Suguru Mukai ,  Natsuki Yui ,  Hiroyasu Makino ,  Takumi Kobayashi

IPC: G01L3/00 ,  G01L1/22

Abstract: The present invention achieves a force sensor in which an electrode, element, and/or the like connected to a strain gauge can be suitably attached to a strain element. The force sensor includes: a strain element including an arm portion that is deformable under an external force; and a strain gauge attached to the arm portion. The strain element includes a projection that sticks out from the arm portion in a direction intersecting the longitudinal direction of the arm portion.

公开(公告)号：US09857493B2

公开(公告)日：2018-01-02

申请号：US14654902

申请日：2013-08-05

Applicant: SINTOKOGIO, LTD.

Inventor： Hiroyasu Makino ,  Minoru Hirata ,  Shuji Takasu ,  Hiroyuki Miyazaki ,  Matthias Strehle

IPC: G01V3/02 ,  B22C9/02 ,  B22C19/00 ,  G01F23/24 ,  B22C19/04 ,  B22C15/02

CPC classification number: G01V3/02 ,  B22C9/02 ,  B22C15/02 ,  B22C19/00 ,  B22C19/04 ,  G01F23/242

Abstract: A method for detecting powder is performed in a powder detection device including a pair of electrodes arranged to be opposed to each other with a gap interposed therebetween and an electric circuit electrically connected to the pair of electrodes. The method includes detecting powder filling in a case where the electric circuit together with powder and the electrodes forms a closed circuit when the powder fills the gap.

公开(公告)号：US11287335B2

公开(公告)日：2022-03-29

申请号：US16826721

申请日：2020-03-23

Applicant: SINTOKOGIO, LTD.

Inventor： Suguru Mukai ,  Natsuki Yui ,  Hiroyasu Makino ,  Takumi Kobayashi

IPC: G01L1/22 ,  G01L3/00

Abstract: The present invention improves the reliability of a force sensor in terms of mechanical troubles. The force sensor includes: a primary bridge circuit that includes a first strain gauge group disposed on a first main face of a strain element and that is configured to detect a component, in a specific direction, of a force exerted on a strain element; and a secondary bridge circuit that includes a second strain gauge group disposed on a second main face of the strain element and that is configured to detect a component of a force in the same direction as the specific direction.

公开(公告)号：US10799941B2

公开(公告)日：2020-10-13

申请号：US16210585

申请日：2018-12-05

Applicant: SINTOKOGIO, LTD.

Inventor： Masahiko Nagasaka ,  Hiroyasu Makino ,  Katsuaki Odagi

IPC: B22C21/10 ,  B22C21/12 ,  B22C19/04 ,  B22C21/08 ,  B22C15/08

Abstract: [Problem] To provide a method and device that automatically detects misalignment during flask mating in an automatic flask mating device for molding flasks for casting.[Solution] In an automatic flask mating device, an external force applied to a cope with a cope molding flask M1 during flask mating is detected by means of a physical quantity detection sensor 60, quantified by a computation/storage/determination processing device 61, and then compared with a numerical value at a normal time for determination to thereby determine whether the flask mating has normally completed and detect flask mating misalignment. A force sensor is preferably used as the physical quantity detection sensor.

公开(公告)号：US11504908B2

公开(公告)日：2022-11-22

申请号：US16808602

申请日：2020-03-04

Applicant: SINTOKOGIO, LTD.

Inventor： Hiroyasu Makino ,  Yoshihisa Suzuki ,  Hideki Morimitsu

IPC: B29C64/255 ,  B33Y30/00 ,  B29C64/291

Abstract: The additive manufacturing system includes a container having an upper part being opened, a base part being vertically movable, and defining a space therein, the space being fillable with sand as a base material of a molded object, an additive manufacturing apparatus forming a green body of the molded object layer by layer in the container while causing the base part to move down, and a microwave oven defining a space therein, the space configured to house the container including the green body, the microwave oven configured to irradiate the container with a microwave to obtain the molded object, wherein a part or a whole of the container is made of a dielectric.

公开(公告)号：US11519799B2

公开(公告)日：2022-12-06

申请号：US16826792

申请日：2020-03-23

Applicant: SINTOKOGIO, LTD.

Inventor： Suguru Mukai ,  Natsuki Yui ,  Hiroyasu Makino ,  Takumi Kobayashi

IPC: G01L5/1627 ,  G01L5/10 ,  G01B7/16

Abstract: The present invention provides a force sensor that is capable of detecting plastic deformation of a strain element. The force sensor detects components, in a plurality of directions, of a force exerted on the strain element. The force sensor includes: inspection strain gauges disposed in stress concentration areas of the strain element; and an inspection bridge circuit that includes the inspection strain gauges and that is configured to detect a component, in a specific direction, of a stress that occurs in the strain element.

公开(公告)号：US11298832B2

公开(公告)日：2022-04-12

申请号：US16638736

申请日：2018-07-13

Applicant: SINTOKOGIO, LTD.

Inventor： Masahiko Nagasaka ,  Hiroyasu Makino ,  Takumi Kobayashi ,  Koji Ito

IPC: B25J13/08 ,  B25J9/16 ,  B22C9/10

Abstract: [Problem] To provide a main mold and core setting device and a main mold and core setting method which enable core setting work, hitherto implemented by a core setting operator using subtle hand sensation, to be completely reproduced by automation.
[Solution] The present invention is provided with: a core grasping and moving means for grasping and moving a core; a core movement amount detection means for detecting a movement amount of the core grasping and moving means; a grasped core position and posture detection means for detecting a position, orientation, and inclination of the core grasped by the core grasping and moving means; a main mold position and posture detection means for detecting a position, orientation, and inclination of a main mold; a sensor for detecting a physical quantity applied to the core; and a control means for constantly calculating relationships between relative positions, orientations, and inclinations of the main mold and the core, and from these relationships and the physical quantity applied to the core detected by the sensor, controlling the core grasping and moving means so that the core is caused to set with the main mold.

公开(公告)号：US11733113B2

公开(公告)日：2023-08-22

申请号：US17052922

申请日：2019-06-03

Applicant: SINTOKOGIO, LTD.

Inventor： Masahiko Nagasaka ,  Hiroyasu Makino

IPC: G01L5/00 ,  G01L5/1627 ,  G01L1/22 ,  B24C1/10

CPC classification number: G01L5/1627 ,  G01L1/2287 ,  B24C1/10

Abstract: A strain element (10), which is configured such that a frame portion (11) and a central portion (12) are connected by arm portions (20) to (22), is masked except for the arm portions (20) to (22) where a strain gauge (A1) and the like are to be disposed, and then peening is carried out. With this, a compressive residual stress layer is formed on four sides of each of the arm portions (20) to (22). When the strain element (10) receives a load resulting from an external force, the arm portions (20) to (22) elastically deform; however, due to the compressive residual stress layer thus formed, the arm portions (20) to (22) are less prone to fatigue failure. When projection of a shot material is carried out as peening, the surface roughness of the arm portions (20) to (22) increases, the adhesion of strain gauges improves, detection accuracy improves, and stable measurement can be ensured.