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3D forming method based on outline injection molding

A technology of injection molding and molding method, which is applied in the field of 3D processing, can solve the problems of low interlayer bonding strength and slow speed, and achieve the effect of accelerating injection molding speed and improving interlayer bonding strength

Active Publication Date: 2015-12-23
深圳晗竣雅科技有限公司
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  • Abstract
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Problems solved by technology

Various existing 3D printing methods have their own characteristics, but they generally have the disadvantages of slow speed and low bonding strength between layers due to melt extrusion technology.

Method used

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  • 3D forming method based on outline injection molding

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Embodiment Construction

[0018] In order to express the present invention more clearly, the present invention will be further described below in conjunction with the accompanying drawings.

[0019] see figure 1 , the 3D molding method based on contour injection molding of the present invention, comprises the following steps:

[0020] The first step is to obtain the 3D model and cut it: scan the object to be printed to obtain the point cloud data of the object, use the reverse software to fit the surface and import it into the modeling software to obtain the 3D model of the object, and cut out a small area on the top of the 3D model part, to get the two-part model of the main structure and the top structure; the volume of the main structure in this step depends on the complexity of the top structure. It can ensure the accuracy of printing entities and save the overall printing time.

[0021] The second step is to transform the entity into a shell: shell the main structure in the 3D model, use the ope...

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Abstract

The invention discloses a 3D forming method based on outline injection molding. The method includes the following steps that a three-dimensional model is obtained and cut; a material is converted into a shell; layering and slicing are carried out; the outline of slices is calculated; the structure of the outline is subjected to 3D printing; filling and curing are carried out; final molding is achieved. The three-dimensional model of a printed object is obtained through 3D modeling software and converted so that the shell slices can be obtained, then the shell of the object is printed in a 3D mode, a sprue is reserved in the top or the bottom of the shell, one or more of a light curing liquid material, sealing glue, melted liquid and a meltable powder material are injected from the sprue to the interior for filling, curing and fusion are carried out, and the problem that an existing light curing technology is not high in layer-to-layer bond strength is solved. By means of the improvement, layer-to-layer bond strength is improved, and the injection molding speed is increased.

Description

technical field [0001] The invention relates to the technical field of 3D processing, in particular to a 3D forming method based on contour injection molding. Background technique [0002] 3D printing technology is a kind of rapid prototyping technology. The principle is to decompose the three-dimensional model designed by the computer into several plane slices, and then stack the 3D printing materials layer by layer according to the slice graphics, and finally stack them into a complete object. At present, 3D printing technology mainly includes photocuring molding, melt extrusion molding, selective laser sintering and so on. Various existing 3D printing methods have their own characteristics, but they generally have the disadvantages of slow speed and low bonding strength between layers in melt extrusion molding technology. Contents of the invention [0003] In view of the deficiencies in the above technologies, the present invention provides a 3D molding method based on...

Claims

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Application Information

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IPC IPC(8): B29C67/00B33Y10/00
Inventor 李忠林林佳裕许遵浩
Owner 深圳晗竣雅科技有限公司
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