Continuous fiber reinforced composite material 3D printer spray head and printer

Abstract

The invention belongs to the field of additive manufacturing and relates to a continuous fiber reinforced composite material 3D printer spray head and a printer. By means of the continuous fiber reinforced composite material 3D printer spray head, the situation that the spray head is plugged by cellosilk is effectively avoided, and a molten resin material is prevented from overflowing out. A cavity body for accommodating a resin material is arranged in a material supplying pipe, and the cavity body is communicated with openings at the two ends of the material feeding pipeline; a silk extrudingdevice is used for sending the resin material into the cavity body and extruding the resin material out of the opening at the other end; a heating device is used for heating the resin material in thecavity body, and a temperature measuring device is used for measuring a temperature of the resin material in the cavity body; a cellosilk cavity body for cellosilk to penetrate through is arranged ina cellosilk supplying pipeline, the cellosilk supplying pipeline is in rotary connection to the cellosilk supplying pipeline, the cellosilk supplying pipeline can rotate around the axis of the material supplying pipeline, and the cellosilk supplying pipeline cannot move up and down; the outlet end of the cellosilk supplying pipeline is arranged at the outlet end of the material supplying pipeline, and an extruded resin material can cover the cellosilk penetrating through the inside of the cellosilk supplying pipeline; the power device is used for driving the gear to rotate.

Description

technical field [0001] The invention belongs to the field of additive manufacturing, and more specifically relates to a continuous fiber reinforced composite material 3D printing nozzle and a printer. Background technique [0002] Additive manufacturing technology is an emerging technology that is rapidly developing in the field of manufacturing. It is called "manufacturing technology with important symbolic significance for the third industrial revolution", and major developed countries have listed it as a key technology for strategic development. At present, additive manufacturing technology relies on cutting-edge technologies in multiple disciplines, and has been applied in aerospace technology, automobile and home appliance manufacturing, biomedicine, food processing and other fields. Compared with traditional manufacturing technology, additive manufacturing 3D rapid prototyping manufacturing technology omits the processing and manufacturing of product molds, thus greatl...

AI Technical Summary

Problems solved by technology

[0004] However, the current continuous fiber reinforced composite material additive manufacturing technology research is less, still in the research and development stage, there are many problems

For example, the resin cannot fully enter the interior of the fiber ribbon, and the fiber filaments cannot be bonded together by the resin, thus forming a cavity inside the printed workpiece, which seriously reduces the mechanical properties of the workpiece

In addition, the additive manufacturing of continuous fiber-reinforced composites is prone to clogging, resulting in the inability of fibers to come out or resin overflowing from the inside of the nozzle

[0005] The invention patent with the patent number 201611004458.X, a nozzle suitable for additive manufacturing of continuous fiber reinforced composite materials and the invention patent with the patent number 201611026706.0, a nozzle suitable for 3D printing of continuous fiber reinforced It is suitable for nozzles manufactured by additive manufacturing of continuous fiber reinforced composite materials, but they are prone to blockage of nozzles by fiber filaments

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