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公开(公告)号:US20240383203A1
公开(公告)日:2024-11-21
申请号:US18663653
申请日:2024-05-14
Applicant: SEIKO EPSON CORPORATION
Inventor: Akihiko TSUNOYA , Takayuki YOKOYAMA
IPC: B29C64/336 , B29C64/165 , B29C64/357 , B33Y30/00
Abstract: A three-dimensional shaping apparatus includes a casing having a first connector and a second connector, a shaping stage on which a powder layer is formed, a layer forming unit that forms a powder layer, a first carriage that moves the layer forming unit, a shaping head that discharges a liquid containing a binder onto the powder layer, a liquid storage unit that stores the liquid, a supply pipe that couples the liquid storage unit and the shaping head, a second carriage that moves the shaping head, a first cable that couples the first connector and the layer forming unit, and a second cable that couples the second connector and the shaping head, wherein the supply pipe has a first turn-around portion, the first cable has a second turn-around portion, and a radius of curvature of the first turn-around portion is larger than a radius of curvature of the second turn-around portion.
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公开(公告)号:US20240308135A1
公开(公告)日:2024-09-19
申请号:US18604038
申请日:2024-03-13
Applicant: SEIKO EPSON CORPORATION
Inventor: Manabu WATANABE , Akihiko TSUNOYA
IPC: B29C64/165 , B29C64/209 , B29C64/218 , B29C64/295 , B33Y10/00 , B33Y70/10
CPC classification number: B29C64/165 , B29C64/209 , B29C64/218 , B29C64/295 , B33Y10/00 , B33Y70/10
Abstract: A three-dimensional shaping method includes a shaping step including: a first step of supplying a powder containing a plant-derived fiber material to form a powder layer; a second step of dispensing at least one of a first liquid or a second liquid to at least a part of the powder layer, the first liquid containing both a binder and an infrared absorber, the second liquid containing at least the binder among the binder and the infrared absorber; and a third step of heating the powder layer to which a liquid is dispensed in the second step at a predetermined heating temperature. The heating temperature is lower than a boiling point of the binder and higher than a melting point of the binder. A content of the infrared absorber in the second liquid is lower than a content of the infrared absorber in the first liquid.
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公开(公告)号:US20230011696A1
公开(公告)日:2023-01-12
申请号:US17932379
申请日:2022-09-15
Applicant: SEIKO EPSON CORPORATION
Inventor: Manabu WATANABE , Toshimitsu HIRAI , Akihiko TSUNOYA , Kaoru MOMOSE
IPC: B29C64/314 , B29C64/165 , B29C64/209 , B29C64/386
Abstract: A three-dimensional shaped article production apparatus includes a shaping table, a layer forming section that forms a powder layer, a head that ejects a liquid containing a binder to a shaping region of a three-dimensional shaped article, a liquid supply system that supplies the liquid to the head, and a moving system that relatively moves the head with respect to the shaping table, wherein the head includes a nozzle that ejects the liquid, a pressure chamber that communicates with the nozzle, a supply flow channel that communicates with the pressure chamber upstream in a supply direction of the liquid, and a circulation flow channel that communicates with the pressure chamber downstream in the supply direction, the circulation flow channel includes a first filter, and a pore diameter of the first filter is larger than a particle diameter of a powder for forming the powder layer.
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公开(公告)号:US20230001636A1
公开(公告)日:2023-01-05
申请号:US17931033
申请日:2022-09-09
Applicant: SEIKO EPSON CORPORATION
Inventor: Eiji OKAMOTO , Akihiko TSUNOYA
IPC: B29C64/165 , B29C64/245 , B29C64/236 , B29C64/209 , B29C64/264 , B29C64/255 , B29C64/241
Abstract: In a three-dimensional shaped object manufacturing device, when a unit is moved in a forward direction, powder is supplied from a first supply portion, a powder layer is formed by a first layer forming portion, a liquid is discharged to a shaping region from a head, and a shaping table is moved in a direction separating from the unit after discharging the liquid is ended and before a second layer forming portion faces the shaping region, and when the unit is moved in a backward direction, the powder is supplied from a second supply portion, the powder layer is formed by the second layer forming portion, the liquid is discharged to the shaping region from the head, and the shaping table is moved in the direction separating from the unit after discharging the liquid to the shaping region is ended and before the first layer forming portion faces the shaping region.
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5.
公开(公告)号:US20190091924A1
公开(公告)日:2019-03-28
申请号:US16139504
申请日:2018-09-24
Applicant: Seiko Epson Corporation
Inventor: Akihiko TSUNOYA , Eiji OKAMOTO
IPC: B29C64/165 , B29C64/295 , B29C64/393 , B29C64/209
Abstract: Provided is an apparatus for producing a three-dimensional shaped article in which the three-dimensional shaped article is produced by stacking layers, the apparatus including: an ejecting section capable of ejecting a flowable material that contains a powder, a solvent, and a binder which constitute the three-dimensional shaped article, based on data; a heating section for heating the flowable material ejected from the ejecting section; and a controlling section for controlling the ejecting section and the heating section, in which the controlling section divides data of the layer for one layer of the three-dimensional shaped article, out of the data, into a plurality of divided pieces of data, and alternately repeats ejection of the flowable material from the ejecting section and heating by the heating section, based on the divided pieces of data, to form the layer for one layer of the three-dimensional shaped article.
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公开(公告)号:US20190077075A1
公开(公告)日:2019-03-14
申请号:US16127752
申请日:2018-09-11
Applicant: Seiko Epson Corporation
Inventor: Akihiko TSUNOYA , Eiji OKAMOTO
IPC: B29C64/165 , B29C64/295 , B29C64/264 , B29C71/04 , B29C71/02
Abstract: Provided is a method for producing a three-dimensional shaped article in which the three-dimensional shaped article is produced by stacking a plurality of layers, and the method includes a layer formation step of forming layers by using a composition that contains a powder, a solvent, and a binder which constitute the three-dimensional shaped article, a solvent removal step of removing the solvent contained in the layers, a thermal treatment step of applying heat at a temperature equal to or higher than a glass transition temperature of the binder to the layers obtained by performing the layer formation step and the solvent removal step, and a heating step of carrying out at least one of degreasing and sintering with respect to a stack of the three-dimensional shaped article that has been thermally treated in the thermal treatment step.
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7.
公开(公告)号:US20180085997A1
公开(公告)日:2018-03-29
申请号:US15701895
申请日:2017-09-12
Applicant: Seiko Epson Corporation
Inventor: Akihiko TSUNOYA
IPC: B29C64/188 , B29C64/165 , B29C64/364 , B33Y10/00 , B33Y30/00 , B33Y70/00
CPC classification number: B29C64/188 , B22F3/008 , B22F2999/00 , B29C64/165 , B29C64/364 , B29C64/393 , B33Y10/00 , B33Y30/00 , B33Y50/02 , B33Y70/00 , B22F2203/03 , B22F3/003
Abstract: A three-dimensionally formed object manufacturing apparatus includes: an ejector ejecting a fluid material including particles, which form a constituent material of a three-dimensionally formed object, and a solvent; a stage on which a layer formed of the fluid material, which is ejected from the ejector, is laminated; an obtainer obtaining an image of the layer formed of the fluid material formed on the stage; a dryer volatilizing the solvent included in the fluid material on the stage; and a determiner determining whether a predetermined amount or more of the solvent is volatilized based on the image obtained by the obtainer, in which a next layer formed of the fluid material is laminated after the determiner determines that the predetermined amount or more of the solvent is volatilized per predetermined layer formation in a laminating direction of the layer formed of the fluid material.
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公开(公告)号:US20170252970A1
公开(公告)日:2017-09-07
申请号:US15441751
申请日:2017-02-24
Applicant: Seiko Epson Corporation
Inventor: Akihiko TSUNOYA , Eiji OKAMOTO
CPC classification number: B33Y10/00 , B22F3/008 , B22F2003/1057 , B29C64/112 , B29C64/393 , B29K2105/16 , B33Y30/00 , B33Y50/02 , C04B35/6264 , C04B35/63 , C04B35/634 , C04B2235/6026 , Y02P10/295
Abstract: A three-dimensional shaped article production method is a method for producing a three-dimensional shaped article by stacking layers and includes a layer formation step of forming each layer in a predetermined pattern by ejecting a liquid droplet of a composition containing particles and a solvent using a dispenser, a measurement step of determining the height of the layer, and a bonding step of subjecting a stacked body including a plurality of layers to a bonding treatment for bonding the particles, wherein when n represents an arbitrary integer of 1 or more, based on the information of the height of the layer in the n-th position (n-th layer) determined in the measurement step, the number of liquid droplets of the composition per unit area to be ejected onto the n-th layer from the dispenser is adjusted in the layer formation step of forming the layer in the (n+1)th position ((n+1)th layer).
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公开(公告)号:US20140152751A1
公开(公告)日:2014-06-05
申请号:US14176541
申请日:2014-02-10
Applicant: SEIKO EPSON CORPORATION
Inventor: Akihiko TSUNOYA
IPC: B41J11/00
CPC classification number: B41J11/002 , B41J2/14274 , B41J2202/09 , B41M7/0081
Abstract: A recording method includes a liquid substance discharge step of discharging a liquid substance from a discharge head toward a predetermined section of sections of the recording medium, and a radiation step of radiating light toward the liquid substance discharged on the recording medium. The liquid substance discharge step and the radiation step are performed n times, with n being an integer of 2 or greater, on the predetermined section to complete recording on the predetermined section while moving the discharge head and the recording medium relative to each other. In the n liquid substance discharge steps, with a recording rate of a first liquid substance discharge step being denoted by a % and a recording rate of a final liquid substance discharge step being denoted by b %, a>b.
Abstract translation: 记录方法包括:液体物质排出步骤,用于将液体物质从排出头朝向记录介质的预定部分排出;以及辐射步骤,朝向排出在记录介质上的液体物质照射光。 液体物质排出步骤和放射步骤在n个整数为2以上的情况下进行n次,在规定部分上完成记录,同时使排出头和记录介质相对移动。 在n个液体物质排出步骤中,将第一液体物质排出步骤的记录速率用%表示,最终液体物质排出步骤的记录速率由b%表示,a> b。
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公开(公告)号:US20250065571A1
公开(公告)日:2025-02-27
申请号:US18945657
申请日:2024-11-13
Applicant: SEIKO EPSON CORPORATION
Inventor: Akihiko TSUNOYA
IPC: B29C64/393 , B29C64/209 , B29C64/232 , B29C64/245 , B29C64/295 , B29C64/35 , B33Y10/00 , B33Y30/00 , B33Y40/00 , B33Y50/02
Abstract: A three-dimensional shaping device that shapes a three-dimensional shaped object by stacking a layer includes: a shaping table on which the three-dimensional shaped object and a quality control shaped object are shaped; an injecting unit configured to inject a shaping material of the three-dimensional shaped object and the quality control shaped object; a moving mechanism configured to move the shaping table and the injecting unit relative to each other; monitoring units configured to monitor a shaping state of the quality control shaped object; and a control unit configured to control the injecting unit, the moving mechanism, and the monitoring units to form the layer. The injecting unit injects, onto the shaping table, the solid shaping material heated into a plasticized state under the control of the control unit, and the control unit forms the layer based on monitoring results of the monitoring units.
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