CN207224585U - A kind of lightweight extrusion system and its 3D printer - Google Patents
A kind of lightweight extrusion system and its 3D printer Download PDFInfo
- Publication number
- CN207224585U CN207224585U CN201720961102.9U CN201720961102U CN207224585U CN 207224585 U CN207224585 U CN 207224585U CN 201720961102 U CN201720961102 U CN 201720961102U CN 207224585 U CN207224585 U CN 207224585U
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- China
- Prior art keywords
- printing material
- printhead
- flexible pipe
- printer
- control device
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Abstract
The utility model discloses a kind of lightweight extrusion system and its 3D printer, system is included in the printhead extrusion control device set on printer movable stand, leave the printer movable stand and be fixedly installed a printing material melting submitting machine, the delivery outlet that printing material melts submitting machine connects printhead extrusion control device by a flexible pipe, the paste printing material that melting is heated in submitting machine is melted is delivered to printhead extrusion control device by flexible pipe, the delivery outlet that submitting machine is melted in the printing material is provided with pressure sensor, the tube wall of the flexible pipe is provided with heating layer, one controller connects printhead extrusion control device respectively, printing material melts submitting machine, the heating layer of pressure sensor and flexible pipe is controlled the mobility of paste printing material.The weight of the utility model printhead is the 10% to 20% of similar 3D printer printhead weight, reduces driving cost, improves the printing effect and precision of large-scale printer.
Description
Technical field
3D printer is the utility model is related to, more particularly to a kind of lightweight extrusion system and its 3D printer.
Background technology
It is that raw material is melted into semi-fluid condition that the extrusion system of 3D printer, which may also be referred to as printhead system, from printing
Head is extruded into target shape, and present extrusion system is the upper end that feed particles are first delivered to printhead, in printhead
Upper end set heating and melting device to melt feed particles, that is, melting process is completed at printhead, this structure
Heating and melting device is moved with the movement of printhead, and the weight as miniprinter heating and melting device plays driving
The driving ratio printed shared by the driving device of head is also little, and beneficial to the integration and miniaturization of printer entirety, but make
For large-scale 3D printer, with regard to considerable, overall weight can reach the ratio that heating and melting installation weight occupies in printhead
Hundreds of kilograms, its caused problem is：Beam and support will increase, it is necessary to powerful driving device, and due to inertia
Effect, overweight printhead cannot do quickly movement and quick continuous crawl, printing precision and can also be affected.
The content of the invention
The purpose of this utility model is to propose a kind of lightweight extrusion system and its 3D printer, by the way that feed particles are melted
Removal printhead is put in makeup, and the weight of printhead can be the 10% to 20% of similar 3D printer printhead weight.
To achieve these goals, the technical solution of the utility model is：
A kind of lightweight extrusion system, is included in the printhead extrusion control device set on printer movable stand, wherein,
Leave the printer movable stand and be fixedly installed a printing material melting submitting machine, the delivery outlet that printing material melts submitting machine leads to
A flexible pipe connection printhead extrusion control device is crossed, flexible pipe will heat the paste printing material of melting in submitting machine is melted
Printhead extrusion control device is delivered to, the delivery outlet that submitting machine is melted in the printing material is provided with pressure sensor, described
The tube wall of flexible pipe is provided with heating layer, and a controller connects printhead extrusion control device respectively, printing material is melted and sent out
The heating layer of machine, pressure sensor and flexible pipe is controlled the mobility of paste printing material.
Scheme is further：The printhead extrusion control device includes printhead extruder head and one carries overvoltage protection
Needle-valve, printhead extruder head is connected directly between on the delivery outlet of needle-valve, and the input port of needle-valve connects the flexibility by interface
Manage, heating apparatus is provided with needle-valve.
Scheme is further：The flexible pipe includes the polytetrafluoro inner tube of conveying paste printing material, and the heating layer is set
On side wall outside polytetrafluoro inner tube, metal net layer is provided outside in the heating layer, is insulating outside metal net layer,
Temperature sensor is provided with polytetrafluoro inner tube side wall.
Scheme is further：The bending radius of the flexible pipe is more than 0.5 meter.
A kind of 3D printer, is a kind of portal frame type 3D printer, is included in the printer set on rectangular frame and moves
Moving frame, is print platform in printer movable stand lower end, wherein, leave the printer movable stand and be fixedly installed a printing
Material melts submitting machine, and the delivery outlet that printing material melts submitting machine connects printhead extrusion control device by a flexible pipe, soft
Property pipe by the paste printing material that melting is heated in submitting machine is melted be delivered to printhead extrusion control device, in the printing material
The delivery outlet for melting submitting machine is provided with pressure sensor, and the tube wall of the flexible pipe is provided with heating layer, a controller point
Not Lian Jie printhead extrusion control device, printing material melt the heating layer of submitting machine, pressure sensor and flexible pipe to paste
The mobility of printing material is controlled.
Scheme is further：The print platform is arranged on a slide, and 3D can be removed by slide print platform
The print area of printer.
Scheme is further：The printhead extrusion control device includes printhead extruder head and one carries overvoltage protection
Needle-valve, printhead extruder head is connected directly between on the delivery outlet of needle-valve, and the input port of needle-valve connects the flexibility by interface
Manage, heating apparatus is provided with needle-valve.
Scheme is further：The flexible pipe include conveying paste printing material polytetrafluoro inner tube, polytetrafluoro inner tube it is interior
Footpath is 12mm to 19mm, it is described heating layer be arranged on the side wall outside polytetrafluoro inner tube, warm temperature without departing from 240 degrees Celsius,
Metal net layer is provided outside in the heating layer, is insulating outside metal net layer, is set on polytetrafluoro inner tube side wall
There is temperature sensor.
Scheme is further：The bending radius of the flexible pipe is more than 3 meters.
Scheme is further：It is close to be provided with circular closing wall on the outside of the rectangular frame, the printing material melts
Submitting machine is arranged on closing wall outer side, and the flexible pipe passes through an elasticity through closing wall on the upside of printer movable stand
Hooking of restricting is lived flexible mobile with printer movable stand.
The beneficial effect of the utility model compared with prior art is：The weight of printhead is similar 3D printer printing
The 10% to 20% of nose heave amount, reduces the intensity requirement to track and supporting mechanism, while reduces the driving power of printhead,
Reduce driving cost, improve the printing effect and precision of large-scale printer.
The utility model is described in detail with reference to the accompanying drawings and examples.
Brief description of the drawings
Fig. 1 is the utility model extrusion system structure diagram；
Fig. 2 is the utility model flexible pipe section structure diagram；
Fig. 3 is the utility model printer arrangement schematic diagram.
Embodiment
A kind of lightweight extrusion system, as shown in Figure 1, being included in the printhead extrusion control set on printer movable stand 1
Device 2 processed, wherein, leave the printer movable stand and be fixedly installed a printing material melting submitting machine 3, printing material, which melts, to be sent
The delivery outlet for going out machine connects printhead extrusion control device by a flexible pipe 4, and flexible pipe will heat in submitting machine is melted
The paste printing material of melting is delivered to printhead extrusion control device, and the delivery outlet that submitting machine is melted in the printing material is provided with
Pressure sensor（Not shown in figure）, the tube wall of the flexible pipe is provided with heating layer, a controller（Not shown in figure）Point
Not Lian Jie printhead extrusion control device, printing material melt the heating layer of submitting machine, pressure sensor and flexible pipe to paste
The mobility of printing material is controlled.
Wherein：The printing material melts the principle for the molten molding machine that submitting machine is used using injection molding machine, is to print
Expect that heating is dissolved and then will printed from output port pressurized delivered, this structure using the pattern of screw extrusion in submitting machine is melted
Material melts submitting machine from having been separated originally with the structure that becames one of printhead extrusion control device out, using flexible pipe from ground
Face is delivered to printhead extrusion control device, significantly reduces the support burden of printer movable stand and drives power demand, and one
It is a to seem simple separation and really bring unexpected effect to traditional extrusion system, especially for large-scale 3D printing
Benefit is particularly evident caused by machine, reduces driving power, controls as miniprinter more flexibly, improves and beat
Print efficiency and precision.
In embodiment：The printhead extrusion control device includes printhead extruder head 201 and one carries overvoltage protection
Needle-valve 202, printhead extruder head is connected directly between on the delivery outlet of needle-valve, and the input port of needle-valve passes through interface 203 and connects institute
Flexible pipe is stated, interface 203 is one section of metal tube in the present embodiment, and to prevent the cooling of this section, electricity is provided with metal tube
Heating；Heating apparatus and temperature sensor are provided with the needle-valve.
As shown in Figure 2：The flexible pipe includes the polytetrafluoro inner tube 401 of conveying paste printing material, and polytetrafluoro has higher
Resistance to elevated temperatures, it is selected be can heatproof to more than 260 degrees Celsius polytetrafluoro pipe, while the surface of polytetrafluoro pipe is smooth
Beneficial to the flowing of paste printing material, the heating layer is that a kind of heating layer 402 for having resistance wire to wind is arranged on polytetrafluoro inner tube
On outer side wall, at least 10 to 18MP pressure is lived since flexible pipe needs are resistance to, in order to improve the resistance to pressure of flexible pipe
Can, metal net layer 403 is provided outside in the heating layer, is insulating 404 outside metal net layer,（Such as asbestos etc.）For
Heating control can be realized to heating layer, on polytetrafluoro inner tube side wall be provided with temperature sensor（Not shown in figure）.
In embodiment：Because flexible pipe needs to follow printhead to move back and forth bending, excessive bending in order to prevent hinders
The flowing of paste printing material, the flexible pipe need certain flexural rigidity, and therefore, the sorting of said structure is implemented to make institute
The bending radius for stating flexible pipe is more than 0.5 meter.
Combined based on a kind of above-mentioned lightweight extrusion system with rack and constitute a kind of 3D printer, as shown in figure 3, it is
A kind of portal frame type 3D printer, is included in the printer movable stand set on rectangular frame, and rectangular frame includes corner
Column 5, the printer movable stand, which is included in, to be done the both sides longitudinal beam 6 of Z axis movement, is Y on the crossbeam of both sides longitudinal direction on column
The transverse beam 7 of axis movement, and the print carriage 8 that X-axis moves is done in transverse beam, that is to say, that the icon 1 in Fig. 1 contains
Longitudinal beam 6, transverse beam 7 and print carriage 8.Printhead extrusion control device 2 is fixed on print carriage 8.Moved in printer
Moving frame lower end is print platform 9, wherein, as it was previously stated, the printer movable stand is left in 3D printer is fixedly installed one
A printing material melts submitting machine, and the delivery outlet that printing material melts submitting machine connects printhead extrusion control dress by a flexible pipe
Put, the paste printing material that melting is heated in submitting machine is melted is delivered to printhead extrusion control device by flexible pipe, described
The delivery outlet that printing material melts submitting machine is provided with pressure sensor, and the tube wall of the flexible pipe is provided with heating layer, a control
Device processed connects the heating layer of printhead extrusion control device, printing material melting submitting machine, pressure sensor and flexible pipe respectively
The mobility of paste printing material is controlled.
Wherein：Become to take out printed product in order to send out, the print platform is arranged on a slide 10, passes through cunning
Rail print platform can remove the print area of 3D printer.
As previously described：The printhead extrusion control device includes printhead extruder head and a pin for carrying overvoltage protection
Valve, printhead extruder head are connected directly between on the delivery outlet of needle-valve, and the input port of needle-valve connects the flexible pipe, institute by interface
State and heating apparatus and temperature sensor are provided with needle-valve.
In embodiment：The flexible pipe includes the polytetrafluoro inner tube of conveying paste printing material, and the internal diameter of polytetrafluoro inner tube is
12mm to 19mm, the heating layer are arranged on the side wall outside polytetrafluoro inner tube, and four fluorine tube operating temperature can be Celsius to 260
Degree, therefore, warm temperature without departing from 240 degrees Celsius, it is described heating layer be provided outside metal net layer, be outside metal net layer every
Hot insulating layer, temperature sensor is provided with polytetrafluoro inner tube side wall.Wherein：The bending radius of the flexible pipe is more than 0.5
Rice.
In embodiment：It is close to be provided with circular closing wall 11 on the outside of the rectangular frame, the printing material, which melts, to be sent
Go out machine and be arranged on closing wall outer side, the flexible pipe passes through an elastic threads through closing wall on the upside of printer movable stand
12 are hooked to tangle with the flexible movement of printer movable stand.
In the present embodiment, the principle that injection molding machine melts modeling make use of to employ the similar printing material melting submitting machine work for melting molding machine
The conveyer of control device paste printing material is extruded for printhead, but is a kind of continuous pouring as injection, and is used as 3D printing
Machine is a kind of discontinuously perfusion working method, therefore simply conveying will just be occurred when printhead pauses by bringing use
The accident of pressure superpressure, flexible pipe explosion or the work of needle-valve superpressure, 3D printer frequently start, stop, being both likely to cause
Superpressure is also possible to cause under-voltage, this all needs to be avoided.For this reason, controller needs collection in real time in actual work
Printing material melts delivery outlet pressure, the temperature of submitting machine, and flexible pipe front end, the temperature in stage casing and back segment, printhead needle-valve
Temperature, when delivery outlet pressure exceeds the first given threshold gradually reduce collection printing material melt submitting machine extruded velocity,
And stop collection printing material when delivery outlet pressure exceeds the second given threshold and melt extrusion of the submitting machine to paste printing material.Together
When in order to ensure the good fluidity of paste printing material, ensure print quality, setting extrusion temperature or printing extruder head temperature
After degree, the dynamic paste printing material that adjusts melts submitting machine delivery outlet in printing material and prints the temperature difference between extruder head, leads to
Normal printing material melts submitting machine delivery outlet and is higher by 3 to 5 degrees Celsius.
The lightweight extrusion system and 3D printer of above-described embodiment use the effect in large-scale printing especially pronounced, its
The weight of printhead is the 10% to 20% of similar 3D printer printhead weight, and what is embodied really is a kind of lightweight extrusion system
System, the weight saving of printhead also just reduces the intensity requirement to track and supporting mechanism, while reduces printhead
Driving power, reduces driving cost, improves the printing effect and precision of large-scale printer.
Claims (10)
1. a kind of lightweight extrusion system, is included in the printhead extrusion control device set on printer movable stand, its feature
It is, leaves the printer movable stand and be fixedly installed a printing material melting submitting machine, printing material melts the defeated of submitting machine
Outlet connects printhead by a flexible pipe and extrudes control device, and flexible pipe will heat the paste of melting in submitting machine is melted
Printing material is delivered to printhead extrusion control device, and the delivery outlet that submitting machine is melted in the printing material is provided with pressure sensing
Device, the tube wall of the flexible pipe are provided with heating layer, and a controller connects printhead extrusion control device respectively, printing material melts
The heating layer of solution submitting machine, pressure sensor and flexible pipe is controlled the mobility of paste printing material.
2. a kind of lightweight extrusion system according to claim 1, it is characterised in that the printhead extrudes control device
Including printhead extruder head and a needle-valve for carrying overvoltage protection, printhead extruder head is connected directly between the delivery outlet of needle-valve
On, the input port of needle-valve connects the flexible pipe by interface, and heating apparatus is provided with needle-valve.
3. a kind of lightweight extrusion system according to claim 1, it is characterised in that the flexible pipe includes conveying paste
The polytetrafluoro inner tube of printing material, the heating layer are arranged on the side wall outside polytetrafluoro inner tube, are provided outside in the heating layer
Metal net layer, is insulating outside metal net layer, and temperature sensor is provided with polytetrafluoro inner tube side wall.
4. a kind of lightweight extrusion system according to claim 1, it is characterised in that the bending radius of the flexible pipe is big
In 0.5 meter.
5. a kind of 3D printer, is a kind of portal frame type 3D printer, it is included in the printer movement set on rectangular frame
Frame, is print platform in printer movable stand lower end, it is characterised in that leaves the printer movable stand and is fixedly installed one
Printing material melts submitting machine, and the delivery outlet that printing material melts submitting machine connects printhead extrusion control dress by a flexible pipe
Put, the paste printing material that melting is heated in submitting machine is melted is delivered to printhead extrusion control device by flexible pipe, described
The delivery outlet that printing material melts submitting machine is provided with pressure sensor, and the tube wall of the flexible pipe is provided with heating layer, a control
Device processed connects the heating layer of printhead extrusion control device, printing material melting submitting machine, pressure sensor and flexible pipe respectively
The mobility of paste printing material is controlled.
6. 3D printer according to claim 5, it is characterised in that the print platform is arranged on a slide, is led to
The print area of 3D printer can be removed by crossing slide print platform.
7. 3D printer according to claim 5, it is characterised in that the printhead extrusion control device includes printhead
Extruder head and one carry the needle-valve of overvoltage protection, and printhead extruder head is connected directly between on the delivery outlet of needle-valve, needle-valve it is defeated
Entrance connects the flexible pipe by interface, and heating apparatus is provided with needle-valve.
8. 3D printer according to claim 5, it is characterised in that the flexible pipe includes the poly- of conveying paste printing material
Tetrafluoro inner tube, the internal diameter of polytetrafluoro inner tube is 12mm to 19mm, and the heating layer is arranged on the side wall outside polytetrafluoro inner tube, is added
Temperature is provided outside metal net layer without departing from 240 degrees Celsius, in the heating layer, is insulating outside metal net layer,
Temperature sensor is provided with polytetrafluoro inner tube side wall.
9. 3D printer according to claim 5, it is characterised in that the bending radius of the flexible pipe is more than 0.5 meter.
10. 3D printer according to claim 5, it is characterised in that be close to be provided with the outside of the rectangular frame circular
Closing wall, the printing material melts submitting machine and is arranged on closing wall outer side, and the flexible pipe is being beaten through closing wall
Lived on the upside of print machine movable stand by an elastic threads hooking with the flexible movement of printer movable stand.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720961102.9U CN207224585U (en) | 2017-08-03 | 2017-08-03 | A kind of lightweight extrusion system and its 3D printer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720961102.9U CN207224585U (en) | 2017-08-03 | 2017-08-03 | A kind of lightweight extrusion system and its 3D printer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207224585U true CN207224585U (en) | 2018-04-13 |
Family
ID=61856337
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720961102.9U Expired - Fee Related CN207224585U (en) | 2017-08-03 | 2017-08-03 | A kind of lightweight extrusion system and its 3D printer |
Country Status (1)
| Country | Link |
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| CN (1) | CN207224585U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113977933A (en) * | 2021-10-25 | 2022-01-28 | 中国科学院空间应用工程与技术中心 | Lightweight flexible extrusion device and method for rapid manufacturing of lunar in-situ resources |
| US11668314B2 (en) | 2020-11-10 | 2023-06-06 | Greenheck Fan Corporation | Efficient fan assembly |
-
2017
- 2017-08-03 CN CN201720961102.9U patent/CN207224585U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11668314B2 (en) | 2020-11-10 | 2023-06-06 | Greenheck Fan Corporation | Efficient fan assembly |
| CN113977933A (en) * | 2021-10-25 | 2022-01-28 | 中国科学院空间应用工程与技术中心 | Lightweight flexible extrusion device and method for rapid manufacturing of lunar in-situ resources |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180413 Termination date: 20210803 |