CN208180267U - 3D printing spray head adaptive controller - Google Patents
3D printing spray head adaptive controller Download PDFInfo
- Publication number
- CN208180267U CN208180267U CN201820748584.4U CN201820748584U CN208180267U CN 208180267 U CN208180267 U CN 208180267U CN 201820748584 U CN201820748584 U CN 201820748584U CN 208180267 U CN208180267 U CN 208180267U
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- Prior art keywords
- spray head
- wire
- printing
- nozzle
- adaptive controller
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- 239000007921 spray Substances 0.000 title claims abstract description 124
- 230000003044 adaptive effect Effects 0.000 title claims abstract description 18
- 238000010146 3D printing Methods 0.000 title claims abstract description 17
- 238000011897 real-time detection Methods 0.000 claims abstract description 8
- 238000012360 testing method Methods 0.000 claims description 10
- 238000010438 heat treatment Methods 0.000 claims description 7
- 230000007246 mechanism Effects 0.000 claims description 2
- 239000012528 membrane Substances 0.000 claims 1
- 229940058401 polytetrafluoroethylene Drugs 0.000 claims 1
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims 1
- 239000004810 polytetrafluoroethylene Substances 0.000 claims 1
- 238000007639 printing Methods 0.000 abstract description 17
- 230000000694 effects Effects 0.000 abstract description 2
- 241001347978 Major minor Species 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 8
- 238000005516 engineering process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Abstract
The utility model discloses a kind of 3D printing spray head adaptive controllers, it is made of control system, feedback device, executive device, wherein control system is made of wire feed rate control module and spray head switching module, feedback device is made of velocity sensor and FSR pressure sensor, executive device is made of wire feeder, spray head switching device, velocity sensor real-time detection wire feed rate, there are four the spray heads of rotatable switching in spray head switching device, have FSR pressure sensor real-time detection spray head wire vent feedback force on each spray head.Control system receives the signal of feedback device to judge whether spray head is normal into silk speed and whether spray head plug failure occurs, and controls that wire feed rate is adjusted in executing agency and major-minor nozzle switches over.In addition during printing heavy parts, by controlling the switching of different spray heads, large aperture spray head is called in inner wall and the internal filling feature of printer model, small-bore spray head is called when printing outer wall feature, the reliability of 3D printing is not only increased, and improves printing effect.
Description
Technical field
The utility model belongs to device fabrication and control field, and being related to one kind can adaptive various operating conditions automatic switchover spray head
Device more particularly to material increasing field 3D printing spray head adaptive controller.
Background technique
With becoming increasingly popular for 3D technology, 3D printer in the market is also frequently encountered various in use
Problem and cause printing failure, wherein spray head blocking be exactly one of the most common type failure, once occur spray head block without
It is found in time, often resulting in printed model also will all scrap, and cause a large amount of wastes of time and materials.In addition,
Same printer only is difficult to take into account the efficiency and precision of printing with the nozzle in single aperture.When printing heavy parts, use is small
The nozzle printing in aperture is time-consuming to generally require a couple of days, and with the nozzle printing of large aperture, then surface is excessively coarse, and therefore, it is necessary to improve
Printing effect is improved while reliability of the nozzle system structure of 3D printer to increase 3D printer to meet user's printing
The demand of heavy parts.
Utility model content
In view of this, the utility model is by a set of Combined nozzle and adaptive control system, using rotation redundancy knot
Structure increases spare spray head, improves the reliability of system, the automatic switchover of thickness spray head improves the working efficiency of equipment.
In order to achieve the above objectives, specific technical solution is as follows.
A kind of 3D printing spray head adaptive controller, is made of control system, feedback device, executive device, wherein controlling
System processed is made of wire feed rate control module and spray head switching module, is controlled by main control chip MCU concentration, feedback dress
It sets and is made of velocity sensor and FSR pressure sensor, executive device includes wire feeder, spray head switching device, described to test the speed
Sensor is mounted on the wire feed rate of real-time detection wire feeder on wire feeder, the wire feeder further include test the speed code-disc,
Wire feeding motor, wire feeding gear, wire-feeding pipe, the spray head switching device are equipped with nozzle boss, and described wire-feeding pipe one end connects wire feed
Mechanism outlet, the other end is connected with nozzle boss upper end into silk mouth, the nozzle boss lower end surface set there are four spray head, be the respectively
One spray head, the first secondary spray head, the second spray head, the second secondary spray head are equipped with FSR pressure sensing on four spray heads
Device, spring, heating ring, guide pipe, sleeve, nozzle, the FSR pressure sensor real-time detection spray head wire vent are fed back dynamics, are sent
Control executing agency adjusts wire feed rate after the signal of silk rate control module and spray head switching module reception feedback device
Switching between section and different spray nozzles.
Preferably, the code-disc that tests the speed on the wire feeder is mounted on wire feeding motor output shaft, same with wire feeding gear
Step rotation, the velocity sensor detection is exactly wire feeding gear revolving speed.
Preferably, the wire-feeding pipe is polyfluortetraethylene pipe.
Preferably, the nozzle boss is cylindrical structure, the first spray head, the first secondary spray head, the second spray head, the second secondary spray
Head is arranged in nozzle boss lower end surface in outer oblique angle circumference array.
Preferably, the nozzle boss is rotatable, makes the work spray head being mounted above always vertically downward, other inoperatives
Spray head inclination avoids influencing to print.
Preferably, the nozzle bore of the nozzle of first spray head and the first secondary spray head is identical, is large aperture nozzle,
In the first secondary spray head be the spare spray head of redundancy, it is small-bore that second spray head is identical with the nozzle bore of the second secondary spray head
Nozzle.Wherein the second secondary spray head is the spare spray head of redundancy.
Preferably, in sleeve, guide pipe outer ring and sleeve lining clearance fit, guide pipe can cover the guiding pipe sleeve
Axial movement in cylinder, annular FSR diaphragm pressure sensor is posted in sleeve upper surface.
Preferably, the nozzle contacts above nozzle with spring with guide pipe lower end surface using being threadedly coupled.
Preferably, heating ring is installed, heating ring inner wall and sleeve outer wall are interference fitted on the outside of the sleeve.
Compared with the existing technology, following points the advantages of technical solutions of the utility model.
Four spray heads can use the nozzle of two kinds of different pore sizes, and large aperture nozzle can be used when printing internal structure
The fineness that small-bore nozzle guarantees part can be used when printing outer surface for rapid build part main body.
Four spray heads are combined by the way of inclined-plane rotation and are arranged on nozzle boss, and the spray head of off working state is avoided to scratch
To piece surface.
One layer of annular FSR diaphragm pressure sensor feedback impedance data are both provided on each spray head to main control chip
MCU, in normal print feed system wire feed, when detecting that pressure data is less than pressure limit lower limit extremely, then it represents that printing
Part deformation is excessive or excessive into silk amount, main control chip MCU control wire feeder reduce silk feeding quantity with reduce accumulated deformation until
It becomes again in normally-pressured neighbor；Opposite, then suitably increase wire feed when detecting that pressure data is higher than pressure set points extremely
Amount；When normal wire feed, detects testing the speed for wire feeding gear and pass round for a look that device does not detect motion impulse and FSR pressure data is abnormal
When, illustrate that plug failure occurs in the spray head at this time, at this moment spray head switching control module is called automatically by spray head switching device is controlled
Secondary spray head continues to print, while overhauling or replacing the spray of plug after the completion of system interface warning note operator is in printing
Mouth.
Detailed description of the invention
The attached drawing for constituting a part of the utility model is used to provide a further understanding of the present invention, this is practical new
The illustrative embodiments and their description of type are not constituteed improper limits to the present invention for explaining the utility model.
Fig. 1 is the overall structure diagram of the utility model embodiment.
Fig. 2 is the structural schematic diagram of the utility model embodiment wire feeder and spray head built-up section.
Fig. 3 is wire feeding gear speed detector schematic diagram in the utility model embodiment wire feeder.
Fig. 4 is the structural schematic diagram of the single spray head feedback fraction of the utility model embodiment.
Fig. 5 is the utility model embodiment charging rate and spray head switching control module logic figure.
Fig. 6 is the utility model embodiment spray head switching control module logic figure.
Wherein, 1 it is wire feeder, 2 be wire-feeding pipe, 3 be nozzle boss, 4 be the first spray head, 5 be the first secondary spray head, 6 is
Second spray head, 7 be the second secondary spray head, 11 be wire feeding motor, 12 be wire feeding gear, 13 for the code-disc that tests the speed, 14 be the sensing that tests the speed
Device, 41 be guide pipe, 42 be annular FSR diaphragm pressure sensor, 43 be sleeve, 44 be heating ring, 45 be spring, 46 be spray
Mouth.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without creative efforts
Every other embodiment obtained, fall within the protection scope of the utility model.
It should be noted that in the absence of conflict, the feature in the embodiments of the present invention and embodiment can
To be combined with each other.
The embodiments of the present invention are specifically described below with reference to attached drawing.
Show as shown in Figure 1 for a kind of 3D printing spray head adaptive controller overall structure of the embodiments of the present invention
It is intended to.Including control system, feedback device, executive device, wherein control system is switched by wire feed rate control module and spray head
Module composition, feedback device are made of velocity sensor and FSR diaphragm pressure sensor, and executive device is by wire feeder, spray
Head switching device composition.
It is illustrated in figure 2 the wire feeder of the utility model embodiment and the structural schematic diagram of spray head built-up section, wire feed
The outlet of one end connection wire feeder 1 of pipe 2, the other end are connected with the upper end of nozzle boss 3 into silk mouth, the lower end surface of nozzle boss 3
There are four spray heads, are first the 4, first secondary spray head 5 of spray head, second the 6, second secondary spray head 7 of spray head respectively, and four spray heads are spraying
The lower end surface of headstock 3 is arranged in outer oblique angle circumference array.
It is illustrated in figure 3 wire feeding gear speed detector schematic diagram in the wire feeder of the utility model embodiment, 11
It is wire feeding gear for wire feeding motor, 12,13 be the code-disc that tests the speed, 14 is velocity sensor.Code-disc 13 and wire feeding gear 12 test the speed all
Be mounted on the output shaft of wire feeding motor 11, velocity sensor 14 can real-time detection wire feeder wire feed rate.
It is illustrated in figure 4 the structural schematic diagram of single spray head feedback fraction, four nozzle structures are identical, are equipped with guide pipe
41, annular FSR diaphragm pressure sensor 42, sleeve 43, heating ring 44, spring 45 and nozzle 46.Annular FSR diaphragm pressure passes
Sensor 42 can real-time detection nozzle 46 wire vent feed back dynamics.
In normal print, annular FSR diaphragm pressure sensor 42 is in the pretightning force of spring 45 and the work of wire vent feedback force
With lower holding normal value, when printing part deformation is excessive or wire feed excessively causes wire vent resistance to become larger, guide ring 41 is micro- upwards
Small sliding, annular FSR diaphragm pressure sensor 42 detect that pressure data reduces, when data are less than setting value, then into silk speed
Control module is spent by the revolving speed for controlling the suitably reduction wire feeding motor 11 of wire feeder 1 to reduce silk feeding quantity, detects pressure on the contrary, working as
Force data then suitably increases silk feeding quantity when being higher than setting value.
In normal print, when velocity sensor 14 detects motion impulse exception and annular FSR diaphragm pressure sensor
When 42 data are excessive, illustrating 46 not wire vent of nozzle, wire feeding gear 12 skids simultaneously, illustrates that plug failure occurs in the spray head at this time,
At this moment spray head switching control module will control spray head switching device and secondary spray head called to continue to print automatically, while in system interface report
Alert prompt operator overhauls after the completion of printing or replaces the nozzle of plug, and specific control logic can refer to Fig. 5.
During printing heavy parts, spray head switching device can control by main control chip MCU, in printer model
When wall and internal fill part, the first spray head 4 of switching is work spray head；In the outer wall section of printer model, switching second
Spray head 6 is work spray head, wherein the nozzle bore of the first spray head 4 is 1.2mm, the nozzle bore of the second spray head is
0.4mm, the nozzle bore of the first secondary spray head 5 are 1.2mm, and the nozzle bore of the second secondary spray head 7 is 0.4mm, specific control logic
It can refer to Fig. 6.
Specific embodiment of the utility model income is described in detail above, but it is merely an example, this is practical
It is novel to be not limited to particular embodiments described above, to those skilled in the art, any pair of the utility model income
Equivalent modifications or substitution also all among the scope of the utility model, such as the spray head quantity in the utility model embodiment figure
It is drawn by 4 descriptions merely for convenience, the utility model is not limited to diagram quantity, can be extended to arbitrary number according to demand
It measures N number of.Therefore, made impartial modification and transformation under the spirit and scope for not departing from the utility model, should all cover at this
Within the scope of utility model.
Claims (10)
1. a kind of 3D printing spray head adaptive controller, is made of control system, feedback device, executive device, wherein controlling
System is made of wire feed rate control module and spray head switching module, is controlled by main control chip MCU concentration, feedback device
It is made of velocity sensor and FSR pressure sensor, executive device is made of wire feeder, spray head switching device, described to test the speed
Sensor is mounted on the wire feed rate of real-time detection wire feeder on wire feeder, the wire feeder further include wire feeding motor,
Test the speed code-disc, wire feeding gear, wire-feeding pipe, and the spray head switching device is equipped with nozzle boss, and described wire-feeding pipe one end connects wire feed
Mechanism outlet, the other end is connected with nozzle boss upper end into silk mouth, the nozzle boss lower end surface set there are four spray head, be the respectively
One spray head, the first secondary spray head, the second spray head, the second secondary spray head are equipped with FSR pressure sensing on four spray heads
Device, spring, heating ring, guide pipe, sleeve, nozzle, the FSR pressure sensor real-time detection spray head wire vent feedback force, control
The signal that system receives feedback device is adjusted with controlling executing agency to wire feed rate, and the switching between different mouths.
2. a kind of 3D printing spray head adaptive controller as described in claim 1, it is characterised in that the survey on wire feeder
Fast code-disc is mounted on wire feeding motor output shaft, is rotated synchronously with wire feeding gear.
3. a kind of 3D printing spray head adaptive controller as described in claim 1, it is characterised in that wire-feeding pipe is polytetrafluoro
Ethylene tube.
4. a kind of 3D printing spray head adaptive controller as described in claim 1, it is characterised in that the FSR pressure sensing
Device is annular membrane structure.
5. a kind of 3D printing spray head adaptive controller as described in claim 1, it is characterised in that nozzle boss is cylinder knot
Structure, the first spray head, the first secondary spray head, the second spray head, the second secondary spray head are in outer oblique angle circumference array in nozzle boss lower end surface
Arrangement.
6. a kind of 3D printing spray head adaptive controller as described in claim 1, it is characterised in that nozzle boss is rotatable, uses
In switch operating spray head, in running order spray head is in state vertically downward, other inoperative spray head inclinations always.
7. a kind of 3D printing spray head adaptive controller as described in claim 1, it is characterised in that the first spray head and the
The nozzle bore of one secondary spray head is identical, is large aperture nozzle, wherein the first secondary spray head is the spare spray head of redundancy, second main jet
Head is identical with the second secondary nozzle bore of spray head, is small-bore nozzle, wherein the second secondary spray head is the spare spray head of redundancy.
8. a kind of 3D printing spray head adaptive controller as described in claim 1, it is characterised in that guide pipe is located at sleeve
Interior, guiding pipe outer wall and sleeve lining clearance fit, guide pipe can move axially in sleeve, and annular is posted in sleeve upper surface
FSR pressure sensor.
9. a kind of 3D printing spray head adaptive controller as described in claim 1, it is characterised in that under nozzle and guide pipe
Using being threadedly coupled, upper end of nozzle face is contacted with spring for end face.
10. a kind of 3D printing spray head adaptive controller as described in claim 1, it is characterised in that be equipped on the outside of sleeve
Ring is heated, heating ring inner wall and sleeve outer wall are interference fitted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820748584.4U CN208180267U (en) | 2018-05-20 | 2018-05-20 | 3D printing spray head adaptive controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820748584.4U CN208180267U (en) | 2018-05-20 | 2018-05-20 | 3D printing spray head adaptive controller |
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| Publication Number | Publication Date |
|---|---|
| CN208180267U true CN208180267U (en) | 2018-12-04 |
Family
ID=64427309
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820748584.4U Expired - Fee Related CN208180267U (en) | 2018-05-20 | 2018-05-20 | 3D printing spray head adaptive controller |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108381925A (en) * | 2018-05-20 | 2018-08-10 | 昆山市奇迹三维科技有限公司 | 3D printing nozzle adaptive controller |
| CN109663675A (en) * | 2019-01-18 | 2019-04-23 | 深圳市华芯机器人技术有限责任公司 | A kind of device for replacing spray head according to the flow rate regime dynamic of spray head |
| CN110421836A (en) * | 2019-08-01 | 2019-11-08 | 华育昌(肇庆)智能科技研究有限公司 | Polychrome 3D printer structure |
-
2018
- 2018-05-20 CN CN201820748584.4U patent/CN208180267U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108381925A (en) * | 2018-05-20 | 2018-08-10 | 昆山市奇迹三维科技有限公司 | 3D printing nozzle adaptive controller |
| CN108381925B (en) * | 2018-05-20 | 2024-01-12 | 江苏奇迹智能制造科技有限公司 | 3D prints shower nozzle self-adaptation controlling means |
| CN109663675A (en) * | 2019-01-18 | 2019-04-23 | 深圳市华芯机器人技术有限责任公司 | A kind of device for replacing spray head according to the flow rate regime dynamic of spray head |
| CN110421836A (en) * | 2019-08-01 | 2019-11-08 | 华育昌(肇庆)智能科技研究有限公司 | Polychrome 3D printer structure |
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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 |
Granted publication date: 20181204 |
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| CF01 | Termination of patent right due to non-payment of annual fee |