A 3D printing consumables production extrusion equipment

Abstract

The invention discloses extruding device for producing 3d printing supplies. The extruding device comprises a material guide box, a mixing box and an extruding head, wherein the material guide box isfixedly arranged at the bottom of the mixing box, and the extruding head is arranged at the bottom of one side of the material guide box. An extruding plate is extruded towards the bottom of the mixing box through the rotating of a threaded rotating shaft, and at the same time, materials are mixed through the cooperation of a mixing frame and a mixing blade and extruded out of discharging holes under the action of pressurization, so that the materials are better heated. Through the cooperation of double grinding shafts, material caking is further prevented. Finally, through extruding force that the materials enter a material storage cavity, the materials drive a fan blade and the rotating shaft to rotate; by driving a second bevel gear to rotate through a first bevel gear, air is guided into a semi-circular air exchange pipe through an arc-shaped air guide hood to cool the materials, and films are formed on the surfaces of the materials; and primarily molded supplies are further cooledthrough the fan blade.

Description

technical field [0001] The invention relates to the technical field of extrusion equipment for producing 3D printing consumables, in particular to an extrusion equipment for producing 3D printing consumables. Background technique [0002] 3D printing (3DP) is a kind of rapid prototyping technology. It is a technology based on digital model files and using bondable materials such as powdered metal or plastic to construct objects by layer-by-layer printing. 3D printing It is usually realized by using digital technology material printers. It is often used to manufacture models in the fields of mold manufacturing and industrial design, and is gradually used in the direct manufacture of some products. There are already parts printed using this technology. Technology is used in jewelry, footwear, industrial design, architecture, engineering and construction (AEC), automotive, aerospace, dental and medical industries, education, geographic information systems, civil engineering, fi...

AI Technical Summary

Problems solved by technology

[0003] At present, domestic 3D printing consumables are still using traditional extrusion, cooling, and wire winding processes. Due to the strict requirements on the wire diameter of 3D printing consumables, most of the current market adopts the specification of 1.75±0.02mm. Such a high precision Requirements, the wire drawing process has strict requirements, especially for crystalline or semi-crystalline polypropylene, polyamide and other materials, the viscosity is low after high temperature melting, in the traditional horizontal wire drawing process, due to the influence of gravity, the formed wire cross section Most of them are drop-shaped or "D" shaped. In the existing technical field, the material is simply heated to melt the material. However, when the material is melted, it is often heated from the outside to the inside, which is easy to cause the material to melt. The inside cannot be completely heated, which will easily cause agglomeration in the material, which will affect the printing result. During the extrusion process of the material, the material cannot be polished, which will easily cause blockage in the subsequent transmission process and inconvenient use.

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