A 3D printer leak-proof working cylinder

Abstract

The invention provides a 3D printer leakproof working cylinder. The 3D printer leakproof working cylinder comprises a first cylinder wall, a second cylinder wall, a first side plate, a second side plate, positioning rods and a piston plate; a rectangular channel structure is jointly defined by the first cylinder wall, the second cylinder wall, the first side plate and the second side plate; the first cylinder wall and the second cylinder wall are cooperatively connected through grooves in the first side plate and the second side plate; the first side plate and the second side plate are fastened and connected through the positioning rods; the piston plate slides in the rectangular channel; and the first cylinder wall and the second cylinder wall are made of glass or resin. The problems that3D printer working cylinders are insufficient in strength, and sand is prone to leaking are solved, the 3D printer leakproof working cylinder is convenient to dismount, mount and maintain and has good application prospects, on the basis of superior performance than original metal cutting machining, the cost is greatly reduced, the corrosion resistance is significantly improved, the especially inapplication of a large-sized piston cylinder blocks, the flatness of a whole board cannot be ensured by metal cutting machining easily, and the 3D printer leakproof working cylinder can be widely popularized in similar application.

Description

technical field [0001] The invention relates to the technical field of 3D printing equipment, in particular to a leak-proof working cylinder of a 3D printer. Background technique [0002] At present, most 3D printing equipment adopts the method of stacking materials layer by layer to realize additive molding. All international and domestic powder material additive molding adopts piston cylinder structure. It includes a powder cylinder that provides printing materials and a forming cylinder that provides a working environment. The piston moves up and down in the piston cylinder. The working method is that the powder spreading roller spreads the powder in the powder cylinder to the forming cylinder, and the printing head after paving the printing material To start printing, the print head can adopt various types of nozzles, as well as laser scanning and electron beam scanning. [0003] Powder is used as both printing material and support material, so the laying and supply of ...

AI Technical Summary

Problems solved by technology

Compared with ordinary machining, precision machining can obtain higher precision and better quality piston cylinders, but the cost is also greatly increased, and there are still problems of cylinder material deformation and wear during use, especially when forming large-sized workpieces At the same time, the processing cost of the cylinder material is higher, and it is easier to produce processing stress deformation, which will cause powder leakage and sand leakage problems

[0004] The problem of powder leakage and sand leakage will not only cause waste of printing materials, but also affect the flattening effect of printing materials in the forming cylinder and reduce the quality of printed workpieces. At the same time, the leakage of printed sand materials may also pollute the environment and affect the health of workers. healthy

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