CN204020009U - A kind of 3D printer charging trunnion of fast changeable tetrafluoroethene bushing pipe - Google Patents
A kind of 3D printer charging trunnion of fast changeable tetrafluoroethene bushing pipe Download PDFInfo
- Publication number
- CN204020009U CN204020009U CN201420415868.3U CN201420415868U CN204020009U CN 204020009 U CN204020009 U CN 204020009U CN 201420415868 U CN201420415868 U CN 201420415868U CN 204020009 U CN204020009 U CN 204020009U
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- bushing pipe
- ptfe
- polytetrafluoroethylene
- tetrafluoroethene
- charging trunnion
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Abstract
The 3D printer charging trunnion that the utility model discloses a kind of fast changeable tetrafluoroethene bushing pipe, it is made up of body and polytetrafluoroethylene (PTFE) bushing pipe.Described body has a through hole, and its aperture equals the external diameter of polytetrafluoroethylene (PTFE) bushing pipe; Length and the body of described polytetrafluoroethylene (PTFE) bushing pipe are equal in length, and tetrafluoroethene pipe is directly installed on body inside.Described charging trunnion connects respectively pay-off and extrusion nozzle, and is jointly threaded connection on heater with extrusion nozzle.The feedhole internal diameter of pay-off, the feeding port internal diameter of heater, polytetrafluoroethylene (PTFE) bushing pipe internal diameter all equate with the external diameter of silk material.Therefore, the wall thickness of polytetrafluoroethylene (PTFE) bushing pipe can be located between pay-off and extrusion nozzle.This technical scheme only need be changed the polytetrafluoroethylene (PTFE) bushing pipe of charging trunnion inside, and simple in structure, easily manufactured.This charging trunnion can reduce the situation that shower nozzle stops up simultaneously, improves device reliability.
Description
Technical field
The utility model relates to 3D printer arrangement design field, relates in particular to a kind of 3D printer charging trunnion of fast changeable tetrafluoroethene bushing pipe.
Background technology
Fusion sediment rapid shaping (FDM) technology is used widely in desktop level 3D printer field.The principle of FDM technology is to extrude after hot melt material silk heating and melting is become to semi-molten state, according to every layer of designed track of part, successively manufactures, and structure is cast final entity repeatedly.
Silk material extrusion device is the key device of FDM technology, mainly by pay-off, and charging trunnion, heating unit and extrusion nozzle composition, complete giving of material silk, heating, the committed step of thawing.
Charging trunnion is responsible for connecting pay-off and extrusion nozzle, and is jointly installed on heater with extrusion nozzle.Charging trunnion can adopt stainless steel tube conventionally, but its inner coefficient of friction is higher, can be easy to occur plug wire phenomenon, directly affects the work of 3D printer.And the solution to the problems described above that can find at present patent has following two kinds: 1. patent 3D printer feed trunnion and feeding structure (patent publication No. is CN 103568154A, file 1) adopt the scheme of built-in polytetrafluoroethylene (PTFE) bushing pipe in charging trunnion; 2. patent charging trunnion (patent publication No. is CN 103419304A, file 2) provides a kind of feed throat inside pipe wall to be coated with the method for Teflon coating.Although two kinds of patents can reduce the internal diameter coefficient of friction of charging trunnion, both need trunnion and built-in material to carry out integral replacing in changing trunnion.Meanwhile, observe the Figure of description of two kinds of patents, file 1 will be manufactured stepped hole in manufacture process, in file 2, not only will increase stepped hole, also will increase screw thread location simultaneously, and two schemes manufacture is comparatively complicated.
Therefore, need a kind of new technical scheme to address the above problem.
Summary of the invention
The shortcoming of prior art in view of the above, the utility model aims to provide the novel 3D printer silk material charging trunnion based on FDM technology, and this device only needs to change the polytetrafluoroethylene (PTFE) bushing pipe of charging trunnion inside, and simple in structure, easily manufactured.This charging trunnion can reduce the situation that shower nozzle stops up simultaneously, improves device reliability.
For achieving the above object, the utility model provides a kind of 3D printer charging trunnion of fast changeable tetrafluoroethene bushing pipe, and its technical scheme is: a kind of 3D printer charging trunnion of fast changeable tetrafluoroethene bushing pipe, comprises body and polytetrafluoroethylene (PTFE) bushing pipe.Described body has a through hole, and aperture equals polytetrafluoroethylene (PTFE) bushing pipe external diameter; Length and the body of described polytetrafluoroethylene (PTFE) bushing pipe are equal in length, and tetrafluoroethene pipe is directly installed on body inside.
Because described charging trunnion connects respectively pay-off and extrusion nozzle, and be jointly threaded connection on heater with extrusion nozzle.Therefore, realize by pay-off and extrusion nozzle are common the location of polytetrafluoroethylene (PTFE) bushing pipe: the feedhole internal diameter of pay-off, the feeding port internal diameter of heater, polytetrafluoroethylene (PTFE) bushing pipe internal diameter all with the equal diameters of silk material, therefore, the wall thickness of polytetrafluoroethylene (PTFE) bushing pipe can be located between the location of pay-off counterbore and extrusion nozzle.
A preferred embodiment of the present utility model is: in the time that polytetrafluoroethylene (PTFE) bushing pipe reaches service life, described silk material extrusion device can be realized the quick-replaceable of polytetrafluoroethylene (PTFE) bushing pipe, specific implementation process is: after completing and moving back silk, only pay-off need be pulled down from original position, expose charging trunnion, polytetrafluoroethylene (PTFE) bushing pipe is extracted from charging trunnion, newer polytetrafluoroethylene (PTFE) bushing pipe is inserted in charging trunnion, complete replacing.Meanwhile, described feed throat pipe manufacturer is simple, easy to use.
Brief description of the drawings
Fig. 1 is the 3D printer charging trunnion profile of a kind of fast changeable tetrafluoroethene of the utility model bushing pipe.
Fig. 2 is the 3D printer charging trunnion scheme of installation of a kind of fast changeable tetrafluoroethene of the utility model bushing pipe.
Fig. 3 is the 3D printer charging trunnion assembling stereogram of a kind of fast changeable tetrafluoroethene of the utility model bushing pipe.
The location counterbore schematic diagram of the pay-off that the 3D printer charging trunnion that Fig. 4 is a kind of fast changeable tetrafluoroethene of the utility model bushing pipe coordinates.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, further illustrate the utility model, should understand these embodiment and only be not used in restriction scope of the present utility model for the utility model is described, after having read the utility model, those skilled in the art all fall within the application's claims limited range to the amendment of the various equivalent form of values of the present invention.
As shown in Figure 1, the utility model discloses a kind of 3D printer charging trunnion 1 of fast changeable tetrafluoroethene bushing pipe, comprises body 11 and polytetrafluoroethylene (PTFE) bushing pipe 12.Described body 11 has a through hole, and its aperture equals the external diameter of polytetrafluoroethylene (PTFE) bushing pipe 12.The length of described polytetrafluoroethylene (PTFE) bushing pipe 12 and body 11 are equal in length, and tetrafluoroethene 12 is managed and is directly installed on body 11 inside.
As shown in Figure 2, described charging trunnion 1 connects respectively pay-off 2 and extrusion nozzle 4, and is jointly threaded connection on heater 3 with extrusion nozzle 4.
As shown in Figure 2, the feeding port internal diameter 41 of the feedhole internal diameter 21 of pay-off 2, heater 4, polytetrafluoroethylene (PTFE) bushing pipe 12 internal diameters all with the equal diameters of silk material 5.Therefore, the wall thickness of polytetrafluoroethylene (PTFE) bushing pipe 12 can be located between the location of pay-off 2 counterbore 22 and extrusion nozzle 4.
Claims (3)
1. a 3D printer charging trunnion for fast changeable tetrafluoroethene bushing pipe, is characterized in that: comprise body and polytetrafluoroethylene (PTFE) bushing pipe;
Described body has a through hole, and its aperture equals the external diameter of polytetrafluoroethylene (PTFE) bushing pipe;
Length and the body of described polytetrafluoroethylene (PTFE) bushing pipe are equal in length, and tetrafluoroethene pipe is directly installed on body inside.
2. the 3D printer charging trunnion of a kind of fast changeable tetrafluoroethene bushing pipe as claimed in claim 1, is characterized in that: described charging trunnion connects respectively pay-off and extrusion nozzle, and is jointly threaded connection on heater with extrusion nozzle.
3. the 3D printer charging trunnion of a kind of fast changeable tetrafluoroethene bushing pipe as claimed in claim 2, it is characterized in that: the feedhole internal diameter of pay-off, the feeding port internal diameter of heater, polytetrafluoroethylene (PTFE) bushing pipe internal diameter all with the equal diameters of silk material, the wall thickness of polytetrafluoroethylene (PTFE) bushing pipe can be located between pay-off and extrusion nozzle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420415868.3U CN204020009U (en) | 2014-07-28 | 2014-07-28 | A kind of 3D printer charging trunnion of fast changeable tetrafluoroethene bushing pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420415868.3U CN204020009U (en) | 2014-07-28 | 2014-07-28 | A kind of 3D printer charging trunnion of fast changeable tetrafluoroethene bushing pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204020009U true CN204020009U (en) | 2014-12-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420415868.3U Active CN204020009U (en) | 2014-07-28 | 2014-07-28 | A kind of 3D printer charging trunnion of fast changeable tetrafluoroethene bushing pipe |
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| CN (1) | CN204020009U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108501371A (en) * | 2018-04-23 | 2018-09-07 | 广州迈普再生医学科技股份有限公司 | A kind of high temperature jetting nozzle of biology 3D printer |
-
2014
- 2014-07-28 CN CN201420415868.3U patent/CN204020009U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108501371A (en) * | 2018-04-23 | 2018-09-07 | 广州迈普再生医学科技股份有限公司 | A kind of high temperature jetting nozzle of biology 3D printer |
| CN108501371B (en) * | 2018-04-23 | 2024-05-14 | 广州迈普再生医学科技股份有限公司 | High-temperature spray head of biological 3D printer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 211100 Tianyuan East Road 1009, Jiangning District, Nanjing, Jiangsu Province (Jiangning Science Park) Patentee after: Jiangsu Weibaoshi Intelligent Technology Co.,Ltd. Address before: 211100 Tianyuan East Road 1009, Jiangning District, Nanjing, Jiangsu Province (Jiangning Science Park) Patentee before: Nanjing Weibaoshi Technology Co.,Ltd. Address after: 211100 Tianyuan East Road 1009, Jiangning District, Nanjing, Jiangsu Province (Jiangning Science Park) Patentee after: Nanjing Weibaoshi Technology Co.,Ltd. Address before: 211100 Tianyuan East Road 1009, Jiangning District, Nanjing, Jiangsu Province (Jiangning Science Park) Patentee before: JIANGSU WEIBAOSHI SCIENCE & TECHNOLOGY Co.,Ltd. |