Patents Assigned to Sodick Co., Ltd.
  • Publication number: 20210016502
    Abstract: A lamination molding apparatus capable of stably supplying material powder on a molding table. Provided is a lamination molding apparatus including a chamber, a recoater head, and a recoater head driving mechanism. The chamber covers a molding region. The recoater head comprises a material case and is configured to be moved so as to form a material powder layer. The material case includes a case outlet for discharging the material powder and a pair of inclined side surfaces arranged with the case outlet interposed therebetween. The inclined side surfaces are inclined toward the case outlet so that inclination angles between a horizontal plane and the inclined side surfaces are different from each other. The recoater head driving mechanism includes a motor and a control unit, and the control unit is configured to vibrate the recoater head to facilitate discharge of the material powder.
    Type: Application
    Filed: January 29, 2020
    Publication date: January 21, 2021
    Applicant: Sodick Co., Ltd.
    Inventors: Shuichi KAWADA, Tsuyoshi SAITO
  • Publication number: 20200406533
    Abstract: A lamination molding apparatus includes a chamber that covers a molding region, an irradiator that irradiates a material layer formed in the molding region with a laser beam or an electron beam and forms a solidified layer, a supply port that supplies an inert gas to the chamber, a discharge port that discharges the inert gas from the chamber, an inert gas supplier which is connected to the supply port and supplies the inert gas to the chamber, a fume collector, and an oxygen concentration adjustor. The fume collector has an inlet, a charging section, a collecting section, and an outlet. The oxygen concentration adjustor is connected between the discharge port and the charging section and supplies, to the fume collector, an adjusting gas having an oxygen concentration higher than an oxygen concentration of the inert gas which is discharged from the discharge port.
    Type: Application
    Filed: April 14, 2020
    Publication date: December 31, 2020
    Applicant: SODICK CO., LTD.
    Inventor: Katsutaka MURANAKA
  • Publication number: 20200400476
    Abstract: A metering device includes a storage tank, a funnel, a feeder, at least one measuring container, a first driver, and a second driver. Liquid and string-shaped foods are sent from the storage tank to the funnel by the feeder. The measuring container is provided under the funnel in a measuring position, and volumetrically meters the string-shaped foods sent from the funnel while ejecting the liquid. The first driver moves the funnel or the measuring container to insert the funnel into the measuring container at a time of metering, and moves the funnel or the measuring container to separate the funnel from the measuring container after metering is completed. The second driver moves the measuring container from the measuring position to an ejecting position.
    Type: Application
    Filed: April 21, 2020
    Publication date: December 24, 2020
    Applicant: SODICK CO., LTD.
    Inventor: Takeshi OKIYAMA
  • Publication number: 20200391445
    Abstract: A method for producing a three-dimensional molded object includes forming a solidified layer, calculating a laser power, calculating a scanning speed, calculating a beam diameter, and determining that the solidified layer is poor when the laser power is outside a first reference range related to the laser power, the scanning speed is outside a second reference range related to the scanning speed, or the beam diameter is outside a third reference range related to the beam diameter.
    Type: Application
    Filed: June 8, 2020
    Publication date: December 17, 2020
    Applicant: Sodick Co., Ltd.
    Inventor: Yasuyuki MIYASHITA
  • Publication number: 20200384686
    Abstract: A method for producing a three-dimensional molded object includes forming a solidified layer by irradiating an irradiation region of a material layer with a laser beam or an electron beam, obtaining data about projections having a height higher than a predetermined value formed on a surface of the solidified layer, calculating heights of the projections, areas of the projections, or the number of the projections based on the data, and determining a molded state of the solidified layer by making a comparison between the calculated heights of the projections and a first threshold relating to heights of the projections, between the calculated areas of the projections and a second threshold relating to an areas of the projections, or between the calculated number of the projections and a third threshold relating to the number of the projections.
    Type: Application
    Filed: May 21, 2020
    Publication date: December 10, 2020
    Applicant: Sodick Co., Ltd.
    Inventor: Yasuyuki MIYASHITA
  • Publication number: 20200375225
    Abstract: A granule preheating device, which preheats a granular food material stored at a low temperature to a predetermined preheating temperature suitable for processing before processing the granular food material with a food processing machine, includes: a housing that accommodates the granular food material, a stirring shaft that rotates a stirring blade to stir the granular food material in the housing, a microwave irradiation device that irradiates microwaves from above the granular food material in the housing, and a control device that controls at least the microwave irradiation device so as to preheat the granular food material being stirred by the stirring shaft until the temperature is uniformly increased to the predetermined preheating temperature of 25° C. or higher and 30° C. or lower suitable for processing within a predetermined preheating time of 10 minutes or less.
    Type: Application
    Filed: May 24, 2020
    Publication date: December 3, 2020
    Applicant: SODICK CO., LTD.
    Inventors: Takeshi OKIYAMA, Yasuhisa OGATA, Maya UENO, Kenta KATSUMATA, Riko TANAKA, Akinori NOGUCHI
  • Publication number: 20200368837
    Abstract: The disclosure provides a wire electric discharge machine which has a simple configuration and can make a wire electrode fed to a machining position rotate around an axis. The wire electric discharge machine for machining a workpiece includes an upper wire guide and a lower wire guide, which stretch a wire electrode therebetween, and a rotator. A position of the rotator is changed, whereby the wire electrode is rotated around an axis.
    Type: Application
    Filed: May 13, 2020
    Publication date: November 26, 2020
    Applicant: SODICK CO., LTD.
    Inventors: Hirotoshi INOUE, Masashi SAKAGUCHI
  • Publication number: 20200368836
    Abstract: In a wire electrical discharge machining device, a wire electrode released from a wire bobbin can be supplied toward a wire electrical discharge machining portion without generating permanently bending or twisting. A first pulley, which receives a wire electrode fed out from a wire bobbin and delivers the wire electrode to the downstream side, is disposed to wind the wire electrode WE to a first delivery position of an outer peripheral portion opposite to a first reception position across a central portion in a radial direction and deliver the wire electrode WE downward. The first pulley is swingable in the horizontal direction with one end in the radial direction as a fulcrum. The swing fulcrum is disposed, in the width direction of the wire bobbin, within a range from one end to the other end in the width direction of the wire bobbin.
    Type: Application
    Filed: April 29, 2020
    Publication date: November 26, 2020
    Applicant: Sodick Co., Ltd.
    Inventor: Akio HOSAKA
  • Publication number: 20200368968
    Abstract: A gas concentration meter includes a first gas concentration detection sensor capable of detecting at least a gas concentration in a first concentration range, a second gas concentration detection sensor capable of detecting at least a gas concentration in a second concentration range, and a control unit. An upper limit value of the second concentration range is lower than an upper limit value of the first concentration range, and a lower limit value of the second concentration range is lower than a lower limit value of the first concentration range. The control unit is configured to output either the lower limit value of the first concentration range or the upper limit value of the second concentration range as an indication value when an output signal of the first gas concentration detection sensor corresponds to a gas concentration lower than the lower limit value of the first concentration range.
    Type: Application
    Filed: April 7, 2020
    Publication date: November 26, 2020
    Applicant: Sodick Co., Ltd.
    Inventor: Katsutaka MURANAKA
  • Patent number: 10800100
    Abstract: A lamination molding apparatus includes a molding table, a molding table driver, and a chuck. The molding table includes a molding region and a temperature adjusting unit. In the molding region, a desired three-dimensional molded object is formed. The temperature adjusting unit has a heating unit with a heater, and a cooling unit with a cooler. The heating unit and the cooling unit are arranged to be stacked in a vertical direction. The molding table driver moves the molding table in the vertical direction. The chuck detachably fixes the temperature adjusting unit to the molding table driver at one fixing point.
    Type: Grant
    Filed: December 11, 2019
    Date of Patent: October 13, 2020
    Assignee: Sodick Co., Ltd.
    Inventors: Shuji Okazaki, Katsutaka Muranaka
  • Publication number: 20200316687
    Abstract: A lamination molding apparatus of the present disclosure includes: a recoater head that forms a material powder layer by uniformly spreading metal material powder on a modeling table at a predetermined height; a laser light irradiation device that irradiates the material powder layer with laser light, and heats and melts the material powder to form a sintered layer; and a control device that forms a sintered body, which is an three-dimensional molded object, by repeatedly driving and controlling the recoater head and the laser light irradiation device; the control device reads sintered body data, that is configured by the shape of a base part in which at least a plurality of support members with constricted central portion are arranged continuously and the shape of a main body part which is a final molded product, and drives and controls the laser light irradiation device and the recoater head to form the sintered body.
    Type: Application
    Filed: March 31, 2020
    Publication date: October 8, 2020
    Applicant: SODICK CO., LTD.
    Inventors: Satoru INOUE, Soichiro TANAKA, Shinya MORIYAMA
  • Patent number: 10792847
    Abstract: Provided is an injection molding machine (1) including a plasticizing unit (2), an injection unit (3), a communication path (5a) configured to communicate therebetween and having an opening (5b) on the plasticizing unit side which is located on an axis of the screw (21), and a backflow prevention mechanism part (6) configured to close and open the opening on the plasticizing unit side by advancing and retreating the screw (21) in the axial direction, wherein the backflow prevention mechanism part (6) includes a tapered wedge portion (61) having an inclined surface (61a), a driving portion (63) which moves the wedge portion in the forward and backward directions, and a pressing member which is pressed against the inclined surface (61a) by forward movement of the wedge portion and moves the screw toward the opening on the plasticizing unit side.
    Type: Grant
    Filed: November 13, 2017
    Date of Patent: October 6, 2020
    Assignee: SODICK CO., LTD.
    Inventor: Koichi Yokoyama
  • Patent number: 10792864
    Abstract: A lamination molding apparatus includes a table, powder holding walls, a table driving device, a bucket, and a cover. The powder holding walls surround the table and hold material powder together with the table. The table driving device includes a linear actuator for outputting linear motion and a guide for transmitting the linear motion to the table and moving the table in a vertical direction. The bucket is disposed under the table and stores the material powder falling from between the table and the powder holding walls. The cover surrounds the table driving device between the table and the bucket. At least one portion of the linear actuator and the guide surrounded by the cover or the bucket is arranged along the vertical direction.
    Type: Grant
    Filed: September 23, 2019
    Date of Patent: October 6, 2020
    Assignee: SODICK CO., LTD.
    Inventors: Shuji Okazaki, Tsuyoshi Saito
  • Publication number: 20200291989
    Abstract: A hydrostatic bearing spindle device includes: a spindle includes tapered portion having tapered radial receiving surface and flange having first thrust receiving surface and second thrust receiving surface formed at rear side from first thrust receiving surface; first thrust bearing has first thrust bearing surface facing first thrust receiving surface; second thrust bearing has second thrust bearing surface facing second thrust receiving surface; radial bearing facing tapered radial receiving surface; rotation regulator regulates relative rotation of one of first thrust bearing and second thrust bearing with respect to the other; and housing has first screw groove which is screwed with first thrust bearing and second screw groove which is screwed with second thrust bearing. Second screw groove has larger screw pitch than first screw groove does when tapered portion expands rearward, and first screw groove has larger screw pitch than second screw groove does when tapered portion expands frontward.
    Type: Application
    Filed: March 12, 2020
    Publication date: September 17, 2020
    Applicant: SODICK CO., LTD.
    Inventor: Misao FUJIKAWA
  • Publication number: 20200282460
    Abstract: A lamination molding apparatus includes a chamber, covering at least a molding area which is the maximum range in which a three-dimensional object can be produced; a molding table, disposed in the molding area in the chamber, on which material powder layers are formed by uniformly spread material powder for each of divided layers, wherein the divided layers are obtained by dividing a desired three-dimensional object for each of a specific thickness; a powder holding wall, surrounding the molding table and holding the material powder supplied onto the molding table; a laser irradiation device, forming sintered layers by irradiating laser beam on specific irradiation areas defined by the contour shape of the desired three-dimensional object of the divided layers on the material powder layers; and a numerical control device, determining, at least before sintering, whether the irradiation areas of all the divided layers are included in the molding area.
    Type: Application
    Filed: May 24, 2020
    Publication date: September 10, 2020
    Applicant: SODICK CO., LTD.
    Inventor: Tsukasa ICHIJO
  • Patent number: 10758980
    Abstract: A laminate molding apparatus calculates three-dimensional finished shape data after displacements occurred after molding of the initial molded object are completed based on a molding program corresponding to three-dimensional shape data of a molded object to be created, compares the three-dimensional finished shape data of the initial molded object with three-dimensional shape data to calculate a correction data of the displacement, creates a corrected molding program corresponding to corrected three-dimensional shape data in which coordinates of the surface of the molded object to be created by adding the correction data to the three-dimensional shape data, and molds a corrected molded object under the same molding conditions as when the initial molded object is molded based on the corrected molding program.
    Type: Grant
    Filed: February 1, 2018
    Date of Patent: September 1, 2020
    Assignee: SODICK CO., LTD.
    Inventor: Ichiro Araie
  • Patent number: 10744565
    Abstract: A lamination molding apparatus with a molding table, including: a galvanometer scanner configured to irradiate a small irradiation region on the molding table with a laser beam; an inert gas supplying nozzle having an inert gas supplying opening for supplying an inert gas; a fume suction duct having a fume suction opening for suctioning the inert gas containing fumes generated with irradiation of the laser beam; an integration unit integrally including the galvanometer scanner, the inert gas supplying nozzle and the fume suction duct; and a moving device configured to move the integration unit so the galvanometer scanner scans and irradiates the laser beam on a large irradiation region larger than the small irradiation region on the molding table; wherein the inert gas supplying opening and the fume suction opening are opposed to each other so an irradiation path of the laser beam is placed therebetween.
    Type: Grant
    Filed: October 25, 2018
    Date of Patent: August 18, 2020
    Assignee: Sodick Co., Ltd.
    Inventor: Shuji Okazaki
  • Patent number: 10737326
    Abstract: Provided is a metal 3D printer provided with a powder layer formation device for uniformly distributing a metal powder and forming a powder layer for each of a plurality of division layers obtained by horizontally dividing a three-dimensional object, a hermetically sealed chamber, a laser irradiation device for irradiating laser light to a predetermined irradiation region on each of the powder layers and forming a sintered layer, an inert gas supplying device for supplying an inert gas to the chamber and discharging fumes to the outside of the chamber, and a control device for issuing a command to start irradiation of the laser light to the laser light irradiation device after a standby time has elapsed that corresponds to a residual amount of fumes in the chamber, such that irradiation by the laser light at the necessary energy is unaffected.
    Type: Grant
    Filed: May 19, 2016
    Date of Patent: August 11, 2020
    Assignee: SODICK CO., LTD.
    Inventor: Mikio Kaneko
  • Patent number: 10730126
    Abstract: A power supply device for wire electric discharge machining includes: a first DC power supply; first switching elements between the first DC power supply and a machining gap; a second DC power supply; a second switching element between the second DC power supply and the machining gap; and a pulse generator controlling the first and second switching elements. The pulse generator is configured so that, in order to generate an electric discharge in the machining gap, the second switching element is switched on and the voltage of the second DC power supply is applied to the machining gap; the first switching element is switched on intermittently at a predetermined frequency in response to an electric discharge generation detection signal, and a series of current pulses is fed to the machining gap. The feeding of the series of current pulses is discontinued when the current pulses don't reach a reference current.
    Type: Grant
    Filed: September 18, 2013
    Date of Patent: August 4, 2020
    Assignee: SODICK CO., LTD.
    Inventor: Kuniharu Yamada
  • Publication number: 20200230880
    Abstract: A lamination molding apparatus includes a molding table, a molding table driver, and a chuck. The molding table includes a molding region and a temperature adjusting unit. In the molding region, a desired three-dimensional molded object is formed. The temperature adjusting unit has a heating unit with a heater, and a cooling unit with a cooler. The heating unit and the cooling unit are arranged to be stacked in a vertical direction. The molding table driver moves the molding table in the vertical direction. The chuck detachably fixes the temperature adjusting unit to the molding table driver at one fixing point.
    Type: Application
    Filed: December 11, 2019
    Publication date: July 23, 2020
    Applicant: Sodick Co., Ltd.
    Inventors: Shuji OKAZAKI, Katsutaka MURANAKA