Three-dimensional waxing, supply and extrusion integrated nozzle structure

Abstract

The invention discloses a three-dimensional waxing, supply and extrusion integrated nozzle structure. The structure comprises a conveying drum fixed on the upper surface of a mobile slide block, wherein a conveying hole communicated with the conveying drum is formed in the mobile slide block; a screw rod is installed in the conveying drum, and is driven by a motor; the motor is fixed at the top of the conveying drum; the screw rod is inserted in the conveying hole of the mobile slide block; a nozzle is arranged below the conveying hole of the mobile slide block, and is fixedly connected to the lower surface of the mobile slide block; heating rods are arranged around the conveying hole of the mobile slide block, and are inserted into the mobile slide block; an inclined conveying pipe is fixed at one side of the conveying drum; and a discharge hopper is fixed at the top of the conveying pipe. The three-dimensional waxing, supply and extrusion integrated nozzle structure simplifies the structure of an extruded wax supply device of a three-dimensional waxing printer, solves the problem of feeding difficulty of molten wax, and improves the printed product precision. The three-dimensional waxing, supply and extrusion integrated nozzle structure is simple in structure, low in manufacturing cost and convenient for operation.

Description

technical field [0001] The invention belongs to the technical field of mechanical engineering, in particular to a three-dimensional waxing, feeding and extrusion integrated nozzle structure. Background technique [0002] Existing 3D printer nozzles that realize the function of extruding wax are generally screw type and air pressure type. The working principle of the screw nozzle is: the screw and the feeding mechanism in the nozzle are driven by the same stepping motor that can rotate along the axis. The screw squeezes the wax in the molten state, so that the wax is ejected from the nozzle under the extrusion force of the screw. The working principle of the pneumatic nozzle is: heat the wax to a low-viscosity molten state, use compressed air as the power source, and extrude the molten material from the nozzle. [0003] Because the melting point of wax is relatively low, the temperature control requirements for molten wax are relatively high, so it is difficult to realize t...

AI Technical Summary

Problems solved by technology

[0003] Because the melting point of wax is relatively low, the temperature control requirements for molten wax are relatively high, so it is difficult to realize the scheme of transferring molten wax to the nozzle by a separate feeding mechanism, and the error of temperature control will directly affect the accuracy of the printed product, and separate The feeding mechanism will also increase the size of the printer, causing inconvenience to users

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