Concrete 3D printing process

A 3D printing and concrete technology, applied in the field of 3D printing technology, can solve problems such as equipment that does not have 3D printing building materials, and achieve the effect of avoiding blockage

Active Publication Date: 2017-06-13
NANJING UNIV OF TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] 3D printing technology has a certain application foundation and market promotion at present, but there are few reports on the application in the construction field, especially in the specific process, which is still in the research process, and there is no commercial 3D printing construction material yet. device appears

Method used

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  • Concrete 3D printing process
  • Concrete 3D printing process

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Embodiment Construction

[0026] Further illustrate below in conjunction with accompanying drawing:

[0027] see figure 1 with figure 2 As shown, the present invention includes a concrete 3D printing process, which mainly includes stirring and conveying of concrete slurry, addition of liquid quick-setting agent, addition and mixing of quick-setting agent, cleaning in the nozzle assembly during intermittent printing, and concrete slurry recycling, and the process of molding after extrusion; wherein the stirring of the concrete slurry is realized by using a flat concrete forced mixer 1, and the transportation is pumped out and conveyed by a wet screw spraying machine 4, and the quick-setting The addition and agitation of the agent are realized through the screw rod in the quick-setting agent pump 9 and the nozzle assembly 11, and the cleaning in the nozzle assembly during the intermittent printing is through the high-pressure water pump 5, the first shut-off valve 3, the second shut-off valve 6, The f...

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Abstract

The invention relates to a concrete 3D printing process. The process mainly comprises the steps of stirring and delivery of concrete grout, addition of liquid accelerators, addition and stirring of accelerators, cleaning of the interior of a spray head assembly during interruption of printing, recovery of concrete grout and extrusion forming, wherein the concrete grout is stirred in plain opening concrete forced mixer; the concrete grout is pumped out and delivered through a wet type screw-type grout spraying machine; the accelerators are added and stirred through screw rods in an accelerator pump and the spray head assembly; cleaning of the interior of the spray head assembly during interruption of printing is realized through a high-pressure water pump and a stop valve together. By means of the concrete 3D printing process, the concrete grout can be effectively extruded to realize 3D printing; the situation which may occur in the 3D printing process are fully considered and dealt with; and a new method is proposed for application of 3D printing in the building field.

Description

technical field [0001] The invention relates to a 3D printing technology, in particular to a concrete 3D printing process. [0002] technical background [0003] 3D printing technology currently has a certain application foundation and market promotion, but there are few reports on the application in the construction field, especially in the specific process, which is still in the research process, and there is no commercial 3D printing construction material yet. The device appears. In order to promote the development of 3D printing in many fields and solve the bottleneck in the application process of 3D printing in the construction field, this invention proposes a process for the application of 3D printing in the construction field, through which the smooth extrusion of concrete paste can be realized out and successfully molded. Contents of the invention [0004] The invention overcomes the limitations of the application field of 3D printing technology, and proposes a co...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B28B1/00B33Y10/00
CPCB28B1/001B33Y10/00
Inventor 黄筱调吴伟伟方成刚许飞
Owner NANJING UNIV OF TECH
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