Nozzle rotating double-spray-head type cement 3D printing structure and using method thereof

Abstract

The invention relates to a nozzle rotating double-spray-head type cement 3D printing structure and a using method thereof. The nozzle rotating double-spray-head type cement 3D printing structure comprises a stand column, and spray head assemblies are symmetrically installed on the side face of the stand column. Each set of spray head assembly comprises a supporting base fixedly installed on the stand column, a feeding cylinder is fixedly installed on the outer side of each supporting base, a feeding motor is installed above each feeding cylinder, a spiral shaft is installed at the downward output end of each feeding motor, and each spiral shaft stretches downwards into the corresponding feeding cylinder. A communicating extrusion cylinder is mounted at the bottom of each feeding cylinder, and a nozzle piece is mounted at the bottom of each extrusion cylinder through a nozzle rotating assembly. A feeding hole is formed in the upper part of the side wall of each feeding cylinder and is connected with an external cement conveying pump through a hose. An automatic cutting and sealing mechanism is mounted on the outer side wall of each nozzle piece. Cement enters the feeding cylinders through the hoses under the action of the cement conveying pumps, the spiral shafts rotate to extrude the cement downwards, and the nozzle rotating assemblies drive the nozzle pieces to rotate relative to the extrusion cylinders. The two sets of spray head assemblies cooperate with each other or work independently, are suitable for printing components of various shapes or colors, and are good in practicability and high in use flexibility.

Description

technical field [0001] The invention relates to the technical field of cement 3D printing equipment, in particular to a cement 3D printing structure with rotating nozzles and double nozzles and a method for using the same. Background technique [0002] 3D printing is a rapid prototyping technology that uses some adhesive materials to construct models by printing them layer by layer. Mold manufacturing and industrial design industries are used to build models, and are gradually developing into product manufacturing, forming "direct digital manufacturing", so 3D printing is also called rapid prototyping, additive manufacturing, and laminated manufacturing. [0003] The 3D printing technology with the highest processing precision is light-curing printing technology. The printing material is usually photosensitive resin. The resin undergoes a curing reaction under a certain wavelength of laser light. To a line, and then extended from a line to a surface, so as to complete the p...

AI Technical Summary

Problems solved by technology

[0004] In the existing technology, there are few equipments that can be really applied to 3D printing buildings, and they are very expensive. It is an urgent demand in the market to develop equipment matching new 3D printing building materials; the automation degree of existing 3D printing equipment is relatively low, and most of them are With manual control construction, it is necessary to set the splint of the construction model in advance, and then manually control the 3D printing equipment to pour cement; this method requires operators to have certain construction experience, and improper operation may lead to uneven cement pouring and affect the construction quality

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