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Device and method for preparing building structure based on 3D printing

A 3D printing and building structure technology, applied in the field of engineering and construction, can solve the problems of poor mechanical bonding performance of the interface between cement-based materials

Active Publication Date: 2019-03-29
CHINA BUILDING MATERIALS ACAD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Therefore, the technical problem to be solved by the present invention is that in the building structure prepared by the equipment for preparing the building structure based on 3D printing in the prior art, the mechanical bonding performance of the interface between the cement-based material layers is poor.

Method used

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  • Device and method for preparing building structure based on 3D printing
  • Device and method for preparing building structure based on 3D printing
  • Device and method for preparing building structure based on 3D printing

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0073] This embodiment provides a device for preparing a building structure based on 3D printing, such as figure 2 with image 3 As shown, it includes: a 3D printing device 1 and a reinforcement device.

[0074] Among them, such as figure 2 As shown, the 3D printing device 1 has a storage cavity 11 and contains cement-based materials to be printed. The end of the storage cavity 11 is connected with a nozzle 12; the nozzle 12 and the reinforcement device are both movably arranged relative to the base frame.

[0075] For example, the whole 3D printing device or the nozzle is arranged on the moving mechanism, and it moves relative to the base frame under the driving of the moving mechanism. The moving mechanism may include a lifter and a manipulator fixed on the lifter, or a sliding part fixed on the lifter. It can be an air cylinder, and the nozzle is fixed on the telescopic shaft of the air cylinder to realize the movement of the nozzle of the 3D printing device relative to the bas...

Embodiment 2

[0109] The equipment for preparing building structures based on 3D printing provided in this embodiment, such as Figure 5 with Image 6 , Which includes: a 3D printing device 1 and a reinforcement device.

[0110] Compared with the equipment for preparing a building structure based on 3D printing provided in Example 1, the difference is that the temporary storage mechanism in Example 1 is not provided in the reinforcement device. In the equipment for preparing a building structure based on 3D printing provided in this embodiment, the reinforcement device includes a straightening mechanism 4 and a cutting assembly 2.

[0111] Among them, the cutting assembly 2 is used to cut long steel bars or long bars into short steel bars or short bars. The straightening mechanism 4 has a linear channel extending along the conveying direction of the long steel bar or the long steel bar and passing the long steel bar or the long steel bar to adjust the horizontality or verticality of the long ste...

Embodiment 3

[0122] The equipment for preparing building structures based on 3D printing provided in this embodiment, such as Figure 7 , Figure 9a as well as Figure 9b As shown, it includes: a 3D printing device 1 and a reinforcement device.

[0123] Compared with the equipment for preparing building structure based on 3D printing provided in Example 2, the difference is that the setting position and direction of the straightening mechanism 4 of the reinforcement device and the cutting assembly 2 are changed; the driving mechanism 3 The setting form is different. In addition, the reinforcement device also includes a bending mechanism 6 and a feeding mechanism 7.

[0124] Such as Figure 7 As shown, the reinforcement device includes a driving mechanism 3, a straightening mechanism 4, a cutting assembly 2, a bending mechanism 6, and a feeding mechanism 7. Wherein, the feeding mechanism 7 is arranged before the straightening mechanism 4 to drive the long steel bars or long ribs to be conveyed i...

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Abstract

The invention discloses a device for preparing a building structure based on 3D printing. The device comprises a 3D printing device and a steel bar loading device. The 3D printing device comprises a material storage cavity and a spray head which is connected with the material storage cavity and can move relative to a base frame; the steel bar loading device is movably arranged relative to the baseframe; the steel bar loading device comprises a cutting component, a feeding mechanism, and a driving mechanism, wherein the cutting component is used for cutting a long steel bar or a long strippedbar into short steel bars or short stripped bars, the feeding mechanism is used for feeding the long steel bar or the long stripped bar to a cutter head of the cutting component, and the driving mechanism is used for driving the short steel bars or the short stripped bars to carry out inserting motion in the direction crossing the stacking direction of a cement-based paste layer, and the driving mechanism inserts the short steel bars or the short stripped bars into an interlayer interface which at least crosses over two adjacent layers of cement-based paste layers printed by the 3D printing device. No printing gap exists between the printed cement-based paste layers and the inserted steel bars, so that the connection tightness between cement paste and the steel bars is guaranteed, and themechanical property and the toughness of the interlayer interface of 3D printed cement-based material are really improved.

Description

Technical field [0001] The invention relates to the technical field of engineering construction, in particular to a device and method for preparing a building structure based on 3D printing. Background technique [0002] 3D printing is usually achieved using digital technology material printers. It is often used to make models in mold manufacturing, industrial design and other fields, and then gradually used in the direct manufacturing of some products. There are already parts printed using this technology. The technology has applications in jewelry, footwear, industrial design, architecture, engineering and construction (AEC), automotive, aerospace, dental and medical industries, education, geographic information systems, civil engineering, guns, and other fields. Among them, the 3D printing technology of cement-based materials has broad prospects in the field of construction, the manufacture of complex structures, the molding and manufacturing of functional materials, and unma...

Claims

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Application Information

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IPC IPC(8): B28B1/00B28B17/00B33Y30/00B33Y40/00B33Y10/00
CPCB28B1/001B28B17/00B33Y10/00B33Y30/00B33Y40/00B28B23/0062
Inventor 王振地王玲赵霞
Owner CHINA BUILDING MATERIALS ACAD
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