摘要:
A supply of build material such as a spool or cartridge is instrumented with a data tag that includes information about the build material. A three-dimensional printer can read the information from the tag and determine how to use the build material during fabrication of a three-dimensional object.
摘要:
A device for producing plastic pipes may include an extruder with a die head and a corrugator, into which a molten plastic tube is introduced by means of the die head to mold the plastic pipe. The corrugator has a molding section, in which molding jaws are guided in pairs in the production direction; in an inlet section of the corrugator, the molding jaws are brought together to form molding jaw pairs towards the start of the molding section; and in an outlet section of the corrugator, the molding jaw pairs are moved apart from each other from the end of the molding section. Each molding jaw has a first and second guide pins and the molding jaws are guided in the guiding apparatus in that the first and second guide pins engage, with respective free ends, in first and second guide grooves of the guiding apparatus.
摘要:
An assembly mountable on a machine including a gantry displaceable along an x-axis, a carriage mounted on such gantry displaceable along the y-axis, provided with means for extruding a beam of molten thermoplastic material, a tool carrier mounted on such carriage displaceable along a z-axis, a tool holder mounted on such tool carrier displaceable about a z-axis, a tool support shaft provided with an axis disposed in an x-y plane journalled in such tool holder and rotatable about the axis thereof, a dispenser conduit mounted on such shaft, perpendicular to such shaft axis, means on such dispenser conduit for ejection of a beam of molten thermoplastic material and a flexible hose with a first end supported on such carrier forming a rotary union with such material extrusion means, and a second end communicating with an inlet of such dispenser conduit.
摘要:
A system is disclosed for use in additively manufacturing a composite structure. The system may include a matrix reservoir, and a fiber guide configured to separately receive a plurality of matrix-wetted reinforcements from the matrix reservoir. The system may also include a die configured to receive the plurality of matrix-wetted reinforcements from the fiber guide and to cause the plurality of matrix-wetted reinforcements to converge into a ribbon. The system may additionally include a cure enhancer configured to cure the matrix in the composite material during discharge of the ribbon from the die, and a support configured to move the die in multiple dimensions during discharge of the ribbon.
摘要:
A three-dimensional (3D) printer is disclosed. The 3D printer can print viscous material such as plastisol, polymer clay, melted sugar and melted chocolate. The 3D printer utilizes an extruder that can prevent dripping of viscous material from a nozzle. The 3D printer includes a control circuit for controlling the movement of the extruder and the air flow within a pneumatic system.
摘要:
There is disclosed a multi-material extruder and extrusion method for 3D printing, and more particularly to an apparatus and method that is adapted to extrude a wide range of materials for printing 3D structures. In an aspect, the apparatus comprises a frame adapted to receive a removable syringe or cartridge with a depressible piston in an extended position, the syringe or cartridge containing material to be extruded. An extrusion motor is under the control of an extruder logic module to determine how quickly the piston of the syringe or cartridge is to be depressed to achieve a desired rate of extrusion of the material. A flexible length of tubing connects the tip of the syringe or cartridge to an extruder nozzle, which nozzle is mounted to a stylus which may be hand-held or mounted to a chassis of a 3D printing device. A feedback signal is used to provide a feedback signal to the extruder logic module to determine the rate of extrusion of material. The syringe or cartridge may include a label containing information on the type of material in the syringe or cartridge, and one or more extrusion parameters to be used with the material in the syringe or cartridge.
摘要:
A rotary drive nozzle die machine for an extruder includes a rotatable nozzle having first and second axial ends and at least one opening at the second end, a compression head for directing a food material to the nozzle, and a drive assembly including a tubular drive sleeve configured to rotate the nozzle and from which the nozzle is axially removable. A housing is provided in which the nozzle rotates. A wire ring coaxially surrounds at least a portion of the nozzle and provides a snap-fit connection with the housing such that relative axial movement of the nozzle and the housing is prevented while allowing rotary movement of the nozzle with respect to the housing. A rotary seal is between the nozzle and the housing and includes a first segment extending from the first axial end of the nozzle radially outwardly to and contiguous with an axially extending second segment.
摘要:
The purpose of this invention is to enable forming 3D objects by a 3D printer with controlling the strength and the direction of the light reflection and to enable forming 3D-printed objects with brilliant reflections of various directions.To solve the problem above, one of the following means are to be used for varying the direction or strength of reflection by controlling the motion mechanism of the print head or the extruder that extrudes filament. First, the intervals of neighboring filaments are varied location to location. Second, the cross sections of filaments are varied location to location. Third, the angle of neighboring filaments is varied location to location.
摘要:
A liquefier assembly for use in an extrusion-based additive manufacturing system, and a method for building a three-dimensional model with the extrusion-based additive manufacturing system, where the liquefier assembly includes a liquefier tube having multiple, independently heatable zones along a longitudinal length of the liquefier tube.
摘要:
In one example, an extrusion head includes a mounting block, a heater block, and a polymer sleeve extending between the heater block and the mounting block. A fastener connector also connects the heater block to the mounting block, wherein the polymer sleeve and the fastener create a fully constrained connection between the heater block to the mounting block.