CN203485333U

CN203485333U - Heat-insulating discharging pipe of 3D printer wire feeding device

Info

Publication number: CN203485333U
Application number: CN201320605054.1U
Authority: CN
Inventors: 柴立峰; 周玉娇; 黄寿冬
Original assignee: YUECHUAN MECHANICAL TECHNOLOGY Co Ltd
Current assignee: YUECHUAN MECHANICAL TECHNOLOGY Co Ltd
Priority date: 2013-09-27
Filing date: 2013-09-27
Publication date: 2014-03-19
Anticipated expiration: 2023-09-27

Abstract

The utility model provides a heat-insulating discharging pipe of a 3D printer wire feeding device. The heat-insulating discharging pipe comprises a wire discharging pipe mounted at the lower end of the 3D printer wire feeding device; a stepped hole is formed in the wire discharging hole of the wire discharging pipe at the end connected with a printing head; a section of heat-insulating sleeve is embedded in the stepped hole; the hole diameters of the inner hole of the heat-insulating sleeve and the wire discharging hole of the wire discharging pipe are identical. The heat-insulating sleeve is additionally arranged in the hole of the wire discharging pipe, the phenomena that a wire material in the wire discharging pipe is heated while the printing head is heated, and the wire discharging pipe is higher in temperature, so that the part, which is located at the connecting end part of the wire discharging pipe, of the wire material is softened and expanded, the wire discharging hole is blocked, and the extrusion of the printing head is interdicted are prevented. When 3D printing is carried out, the heat-insulating sleeve in the hole of the wire discharging pipe can ensure that the internal temperature in the hole of the wire discharging pipe is kept constant, the wire material can smoothly pass through the wire discharging pipe, and the printing fault rate is reduced; the heat-insulating sleeve is made of a polytetrafluoroethylene material, high-temperature resistance is realized, the manufacturing cost is low, economy and practicability are realized, and the requirements that the wire material is not expanded while passing through the wire discharging pipe and the printing and wire discharging are smooth are met.

Description

The heat insulation discharge nozzle of a kind of 3D printer wire feeder

Technical field

The utility model belongs to 3 D-printing field shaping technique, relates to a kind of 3D printer wire feeder annex, is specifically related to that a kind of 3D printer wire feeder is heat insulation goes out fiber tube.

Background technology

Three-dimensional printing technology is a kind of new and high technology based on increasing material autofrettage principle, is continuity and the development of RP technique, and the crux of realizing three-dimensional printing technology is three-dimensional printer and 3 D-printing free forming technique.Have at present 5 kinds of commercial products and technique: laser curing formula (SLA), laser sintered formula (SLS), paster is inscribed formula (LOM), and ink-jet sticks powder formula (3DP), melt molding (FDM).

Three-dimensional printer based on FDM forming technique, its printer port of printer is connected to the lower end that wire feeder goes out fiber tube, in order to expect that silk melt extrudes real time print shaped article, need to printhead, heat by conductive heater piece, when adding thermal printer head, also can be heated to the fiber tube that goes out being connected with printhead, because existing wire vent tubular construction is not heat insulation, cause drop temperature too high, extremely easily cause pore plug wire, blocking-up printhead extruded stock silk, has a strong impact on print quality.

Summary of the invention

The purpose of this utility model is to provide a kind of simple in structure, easy to install, what be suitable for 3D printer wire feeder heat insulationly goes out fiber tube, by install collet additional in wire vent pore, prevent from producing due to excess Temperature the phenomenon of fiber tube plug wire, solved the problems referred to above that existing 3D printer wire feeder exists.

The technical scheme that the utility model adopts is, a kind of 3D printer wire feeder is heat insulation goes out fiber tube, comprise the fiber tube that goes out that is installed on 3D printer wire feeder lower end, described in go out the link in printhead in fiber tube wire vent hole and be processed with stepped hole, stepped hole is embedded with a joint collet.

3D printer wire feeder described in the utility model is heat insulation goes out fiber tube, be further characterized in that,

Collet endoporus is with to go out aperture, fiber tube wire vent hole identical.

The material of described collet is polytetrafluoroethylene (PTFE).

The utility model 3D printer wire feeder is heat insulation goes out fiber tube, by install collet additional in wire vent pore, prevented from being also heated to out when adding thermal printer head the material silk in fiber tube, cause fiber tube excess Temperature, cause material silk in the deliquescing of wire vent tube portion, expansion, the phenomenon that causes wire vent hole plug wire, blocking-up printhead to be extruded, the collet installing additional in wire vent pore can be when carrying out 3D printing, guarantee that wire vent pore internal temperature keeps constant temperature, thereby make material silk smooth and easy by going out fiber tube, reduce print fault rate, improve printing precision.

The utility model collet adopts polytetrafluoroethylmaterial material, not only has resistant to elevated temperatures feature, and low cost of manufacture, economical and practical, can meet wire vent and not conduct the heat to material silk when going out fiber tube and make its expansion and print the unobstructed requirement of wire vent.

Accompanying drawing explanation

Fig. 1 is the heat insulation fiber tube installation site figure of going out of the utility model 3D printer wire feeder;

Fig. 2 is the heat insulation wire vent tubular construction of the utility model 3D printer wire feeder schematic diagram.

In figure, 1.3D printer wire feeder, 2. goes out fiber tube, 3. wire vent hole, 4. link, 5. stepped hole, 6. collet, 7. conductive heater piece, 8. printhead.

The specific embodiment

Below in conjunction with the drawings and specific embodiments, the utility model is elaborated.

A kind of 3D printer wire feeder is heat insulation goes out fiber tube, as depicted in figs. 1 and 2, comprise be installed on 3D printer wire feeder 1 lower end go out fiber tube 2, describedly go out the link 4 in printhead in fiber tube 2 wire vent holes 3 and be processed with stepped hole 5, stepped hole 5 is embedded with a joint collet 6, and described collet 6 endoporus are with to go out 3 apertures, fiber tube 2 wire vent hole identical.

The utility model 3D printer wire feeder is heat insulation to be gone out fiber tube and is arranged on 3D printer wire feeder 1 lower end, it 3D printer wire feeder go out fiber tube 2 wire vent holes 3 in process one section of stepped hole 5 with printhead link 4, at the interior installation one joint collet 6 of this stepped hole 5, by going out the collet 6 in fiber tube 2, while having prevented from adding thermal printer head 8 due to use conductive heater piece 7, fiber tube 2 links 4 that go out that are connected with printhead 8 are also heated simultaneously, cause fiber tube 2 excess Temperatures, cause material silk going out fiber tube 2 link 4 part deliquescing, expand, cause at link 4 wire vent hole 3 plug wires, the phenomenon that blocking-up printhead is extruded.Owing to going out the collet 6 having installed additional in fiber tube 2 holes, there is resistant to elevated temperatures feature, therefore print while adding thermal printer head 8 carrying out 3D, the heat that goes out fiber tube 2 link 4 electrical heating pieces 7 is no longer transmitted to out the material silk in fiber tube 2, the temperature that can use fiber tube 2 inside, wire vent hole keeps constant temperature, thereby make material silk smooth and easy by going out fiber tube 2, reduce print fault rate, improve printing precision.

The utility model collet 6 adopts polytetrafluoroethylmaterial materials, not only has resistant to elevated temperatures feature, and low cost of manufacture, economical and practical, can meet wire vent and not conduct the heat to material silk when going out fiber tube 2 and make its expansion and print the unobstructed requirement of wire vent.

Above-mentioned embodiment is an example of the present utility model; not for limiting enforcement and the interest field of utility model; all equivalences of making according to the content described in the utility model patent protection scope change and modify, and all should be included in the utility model claim.

Claims

1. a 3D printer wire feeder is heat insulation goes out fiber tube, comprise be installed on 3D printer wire feeder (1) lower end go out fiber tube (2), it is characterized in that, describedly go out the link (4) in printhead in fiber tube (2) wire vent hole (3) and be processed with stepped hole (5), stepped hole (5) is embedded with a joint collet (6).

2. 3D printer wire feeder according to claim 1 is heat insulation goes out fiber tube, it is characterized in that, described collet (6) endoporus is with to go out aperture, fiber tube (2) wire vent hole (3) identical.

3. 3D printer wire feeder according to claim 1 is heat insulation goes out fiber tube, it is characterized in that, the material of described collet (6) is polytetrafluoroethylene (PTFE).