Double-nozzle wax pattern 3D printer

Abstract

The invention discloses a double-nozzle wax pattern 3D printer which comprises a printer frame, a working platform, a wire supply cylinder, a crushing mechanism, a melting mechanism, a feeding mechanism, a pressurizing mechanism, a moving mechanism and a double-nozzle mechanism, wherein the crushing mechanism, the melting mechanism, the feeding mechanism, the pressurizing mechanism, the moving mechanism and the double-nozzle mechanism are arranged on the printer frame; the melting mechanism is arranged below the crushing mechanism and is used for receiving the blocky raw materials processed by the crushing mechanism through a conical barrel; the pressurizing mechanism is used for extruding liquid wax of the melting mechanism; the feeding mechanism comprises a servo electric cylinder and a storage tank, and the storage tank is connected with a discharge port of the melting mechanism; the movement mechanism comprises a water X-Y movement mechanism and a Z-axis movement mechanism; the double-nozzle mechanism comprises a height difference switching device, a screw extrusion nozzle and a supporting material printing nozzle. According to the invention, printing of a wax mold with a complex structure is facilitated, a height difference is generated between the two nozzles, the nozzles are prevented from colliding with a printing material, and meanwhile, the wax mold quality and the printing efficiency are greatly improved.

Description

technical field [0001] The invention relates to the field of wax pattern 3D printing, in particular to a wax pattern 3D printer with double nozzles. Background technique [0002] Wax mold making is an important process in the lost wax casting process. The traditional wax mold making needs to open the mold and inject wax. The production and development cycle is long, and it cannot meet the individual needs. There are more and more small batch trial production tasks, so fast Making various complex wax patterns is undoubtedly the key to promoting the development of lost wax casting. Such as gearboxes, impeller blades, and other power components often require experimental development and small-batch manufacturing. If traditional investment casting technology is used, mold design requires long-term research and development, and requires high mold opening costs. [0003] Rapid investment casting technology is the combination of 3D printing technology and investment casting techno...

AI Technical Summary

Problems solved by technology

[0004] In the existing technology, such as the Chinese invention patent "A Wax Model 3D Printer for Investment Casting (201910588307.0)", compressed air is used as the power source for liquid wax extrusion. During the printing process, it is easily affected by external and internal physical changes. , resulting in fluctuations in extrusion power, and at the same time there is no support material printing device, the printing effect is not very ideal

The printing accuracy and efficiency of this printing method are generally low, the structure of the wax model is simple, and the applicability is greatly limited.

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