Three-dimensional shaped object manufacturing device
A technology for three-dimensional modeling and manufacturing devices, which is applied in the direction of manufacturing auxiliary devices, coating devices, additive manufacturing, etc., and can solve problems such as poor liquid ejection and inability to remove powder
Active Publication Date: 2021-01-05
SEIKO EPSON CORP
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- Description
- Claims
- Application Information
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Problems solved by technology
Therefore, depending on the powder used, a lot of powder may fly and mix into the nozzle, and the powder mixed into the nozzle may not be removed even if the flushing operation is performed.
If the powder mixed in the nozzle cannot be removed, it will cause poor discharge of liquid, etc.
Method used
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Embodiment Construction
[0014] First, an outline of the present invention will be described.
[0015] A three-dimensional molded object manufacturing apparatus according to a first aspect of the present invention for solving the above-mentioned problems is characterized by comprising: a modeling table; a layer forming unit for forming a powder layer on the modeling table; a liquid is ejected from a nozzle to a modeling region of a three-dimensional modeling object in the powder layer; and a control unit controls movement of the head relative to the modeling table and driving of the head based on an applied voltage, in After the liquid is sprayed to the styling area, the control unit executes a flushing action of spraying the liquid from the nozzle at a position different from the styling area, that is, a flushing position, and the control unit controls, The voltage applied during the flushing action is higher than the voltage applied when the liquid is sprayed to the styling area.
[0016] According...
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The invention provides a three-dimensional shaped object manufacturing device. In the three-dimensional shaped object manufacturing device in which a three-dimensionally shaped object is manufacturedby discharging a liquid from a nozzle to a powder layer, powder mixed in the nozzle cannot be removed sometimes even if a flushing operation is performed. The three-dimensional shaped object manufacturing device includes a shaping table, layer forming portions configured to form a powder layer on the shaping table, a head 3 configured to discharge, from a nozzle, a liquid containing a binder to ashaping region of a three-dimensional shaped object in the powder layer, and a control unit configured to control a movement of the head with respect to the shaping table and a drive of the head by applying a voltage, in which the control unit performs control to, after the liquid is discharged to the shaping region, execute a flushing operation of discharging the liquid from the nozzle to a flushing position different from the shaping region, and set an applied voltage during the flushing operation higher than an applied voltage when the liquid is discharged to the shaping region.
Description
technical field [0001] The present invention relates to a manufacturing device of a three-dimensional model. Background technique [0002] Conventionally, various devices for manufacturing three-dimensional objects have been used. Among them, there is a three-dimensional shaped object manufacturing apparatus that forms a powder layer and sprays a liquid containing a binder from a nozzle onto a modeling region of a three-dimensional shaped object in the powder layer to manufacture a three-dimensional shaped object. For example, Patent Document 1 discloses a three-dimensional modeling apparatus that forms a layer from a powder material and sprays a solidified liquid onto the layer from a nozzle of a line head to manufacture a three-dimensional model. [0003] Patent Document 1: Japanese Patent Laid-Open No. 2019-1010 [0004] In the three-dimensional modeling apparatus described in Patent Document 1, a flushing station for performing a flushing operation of the solidified li...
Claims
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IPC IPC(8): B29C64/35B29C64/393B33Y40/00B33Y50/02
CPCB29C64/35B29C64/393B33Y40/00B33Y50/02B29C64/165B29C64/209B33Y30/00B22F12/90B22F12/50B22F10/14B22F2999/00B22F10/85B41J11/00Y02P10/25B22F12/53B22F2203/11B29C64/236
Inventor 冈本英司角谷彰彦
Owner SEIKO EPSON CORP