Three-dimensional printing system and equipment assembly

A technology of 3D printing and printing system, which is applied in the direction of metal processing equipment, general parts of printing machinery, printing, etc., and can solve the problems of subtle differences in objects, non-real copying, imitation of objects, etc.

Active Publication Date: 2015-05-20
APRECIA PHARMA LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, these compensation methods simply result in radially printed objects mimicking each other rather than true replicas
The angle at which the droplet enters the powder bed will also vary with radial position, again causing slight differences in the objects printed at different positions
Alignment and staggering of multiple print heads for radial printing is another disadvantage
Feasible but more complicated than using a Cartesian system

Method used

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  • Three-dimensional printing system and equipment assembly
  • Three-dimensional printing system and equipment assembly
  • Three-dimensional printing system and equipment assembly

Examples

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Embodiment 1

[0178] The following materials and procedures were used to prepare 3D-printed dosage forms that dissolve rapidly in saliva.

[0179] A powder comprising at least one drug carrier is loaded into a powder reservoir. A fluid comprising a liquid and at least one active ingredient is loaded into the fluid reservoir. The device assembly is operated whereby a plurality of stacked incremental layers of printing powder are sequentially formed in the building block by repeatedly passing the building block through the one or more building stations. Typically, four to fifty incremental printing powder layers are formed and bonded to each other, thereby forming a print bed having one or more objects surrounded by or embedded in loose powder . The print bed is dried in a dryer. Printed objects are separated from loose powder using a harvester. The printed article is then optionally dusted using a duster. Then, the printed items are optionally packaged.

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Abstract

A three-dimensional printing system and equipment assembly for the manufacture of three-dimensionally printed articles is provided. The equipment assembly includes a three-dimensional printing build system, an optional liquid removal system and an optional harvester system. The build system includes a conveyor, plural build modules and at least one build station having a powder-layering system and a printing system. The equipment assembly can be used to manufacture pharmaceutical, medical, and non- pharmaceutical / non-medical objects. It can be used to prepare single or multiple articles.

Description

technical field [0001] The present invention relates to a manufacturing system and device components and their use for three-dimensional printing to prepare objects by applying one or more powders and one or more liquids to the powder. Background technique [0002] Rapid prototyping describes various techniques for producing three-dimensional prototypes of objects from computer models of the objects. One technique is three-dimensional printing, whereby printers are used to make 3-D prototypes from multiple two-dimensional layers. Specifically, a digital representation of the 3-D object is stored in computer memory. Computer software partitions the representation of the object into distinct 2-D layers. Alternatively, a string (sequential series) of instructions for each incremental layer can be entered directly, eg a sequence of images. The 3-D printer then makes thin layers of bonding material for each layer of the 2-D image divided by the software. The layers are printe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C67/00
CPCB33Y10/00B33Y30/00B33Y40/00B33Y50/02B29C67/00B33Y40/20B29C64/165B29C64/176Y02P10/25B29C64/245B29C64/321B29C64/393B29C64/209B22F7/02B29C67/04B41F23/04Y10T428/24851B29C64/236B29C64/35B29L2009/00
Inventor J·于T·J·布拉德伯里T·J·贝贝J·伊斯克拉H·L·苏尔普勒南T·G·韦斯特
Owner APRECIA PHARMA LLC
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