CN209240488U - A kind of 3D printing spray head - Google Patents
A kind of 3D printing spray head Download PDFInfo
- Publication number
- CN209240488U CN209240488U CN201821695258.8U CN201821695258U CN209240488U CN 209240488 U CN209240488 U CN 209240488U CN 201821695258 U CN201821695258 U CN 201821695258U CN 209240488 U CN209240488 U CN 209240488U
- Authority
- CN
- China
- Prior art keywords
- nozzle body
- spray head
- drive rod
- plunger
- power device
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Abstract
The utility model relates to 3D printing technique fields, a kind of 3D printing spray head, including nozzle body, drive rod, plunger and power device, the nozzle body side has feeding inlet, the spray head end of the lower end toper of nozzle body, the tip of spray head end is discharge port, the top of the nozzle body has mounting hole, the power end connection drive rod of power device simultaneously can drive drive rod rotation, the top of nozzle body is arranged in power device, the drive rod is inserted into the inside of nozzle body by the mounting hole at the top of nozzle body, and the lower end of drive rod extends to spray head end；Plunger includes chock plug made of pedestal and soft material made of metal material, the shape of chock plug be and the matched taper of spray head terminus inner cavity shape, have and the matched internal thread hole of drive rod inside the plunger, internal thread hole runs through chock plug upper and lower ends, and the plunger can be driven by drive rod and move down and the material inside nozzle body be squeezed out nozzle body from discharge port.
Description
Technical field
The utility model relates to 3D printing technique field, especially a kind of spray head that 3D printer uses.
Background technique
Thermoplastic material (such as nylon) is often used in fusion sediment formula (FDM) printing occasion.Nylon yarn (or other
Thermoplastic material) it is sent into ejection head unit by feed unit (feed unit includes passage, wire feeding gear and trunnion), spray head
Unit includes heat block and spray head, and hot melt channel is equipped with inside heat block, which is connected with spray head, and nylon yarn is heating
It being heated in channel and becomes molten condition, the wire feeding gear of feed unit constantly pushes nylon yarn into hot melt channel, so that
Molten material constantly pours in spray head in hot melt channel, and is discharged down from the discharge port of spray head, goes out through what spray head squeezed out
Melted material layer by layer deposition, while cooperating cooling fan supplement heat rejecter, finally obtain three-dimensional product.
3D printing spray head in the prior art is difficult to clean up after the printed material condensation after spraying material inside spray head, is made
Printing head basic blocking after using 2-3 times is obtained, spray head internal fine degree is higher, is difficult progress internal cleaning.
Utility model content
To solve the above problems, the utility model provides a kind of 3D printing spray head, which has good self-cleaning energy
Power, and can be cleared up before printed material solidification.
In order to achieve the above purposes, the technical solution adopted by the utility model is:
A kind of 3D printing spray head, including nozzle body, drive rod, plunger and power device, wherein the nozzle body side
Face has feeding inlet, the spray head end of the lower end toper of nozzle body, and the tip of spray head end is discharge port, the nozzle body
Top have mounting hole, the power device power end connection drive rod simultaneously can drive drive rod rotation, power device is set
It sets at the top of nozzle body, the drive rod is inserted into the inside of nozzle body by the mounting hole at the top of nozzle body, and
The lower end of drive rod extends to spray head end；The plunger includes plug made of pedestal and soft material made of metal material
The shape of head, pedestal is matched with the shape of nozzle body internal cavities, and the shape of chock plug is and spray head terminus inner cavity shape
Matched taper, the plunger inside, which has, runs through chock plug upper and lower ends, institute with the matched internal thread hole of drive rod, internal thread hole
Stating plunger can be moved down by drive rod drive and the material inside nozzle body is squeezed out nozzle body from discharge port.
Preferably, the power device is motor.
Preferably, the drive rod includes having the opposite light bar segment and lower part of mounting hole with the top of nozzle body
Screw thread rod segment.
Preferably, the length of light bar segment and the matched of plunger in the nozzle body inner cavity.
Preferably, offering air equalizer opening in the top end surface of the nozzle body.
Preferably, being equipped with groove at the mounting hole, sealing ring is equipped in the groove.
Preferably, the feeding inlet is extension pipeline.
Preferably, the extension pipeline is quick coupling.
Preferably, nozzle body internal cavities cross section is rectangle.
Using the beneficial effects of the utility model are:
The present apparatus is driven by power device drives drive rod rotation, and drive rod drives plunger to move down by being threadedly engaged,
Pedestal clears up nozzle body inner wall in folding process, and chock plug is by soft material gradually spray head end cone inside configuration
Material gradually squeezes out nozzle cavity, the release that chock plug made of soft material can gradually mitigate internal printing material, effect
Fruit is significantly better than hard metal material.
The thickness matching of the length of light bar segment and pedestal in nozzle body inner cavity, under print state, drive rod overturning is passed
Agitating device of the lever as cavity inside avoids the too fast solidification of the printed material in nozzle body.
Air equalizer opening can avoid because air pressure imbalance so that plunger move up, move down facilitate it is smooth.
Detailed description of the invention
Fig. 1 is the utility model 3D printing spray head overall structure diagram.
Fig. 2 is the schematic diagram in the utility model 3D printing spray head scale removal process.
Fig. 3 is the schematic diagram in the scale removal process of another state of the utility model 3D printing spray head.
Appended drawing reference includes:
100- nozzle body, 110- feeding inlet, 120- spray head end, 130- discharge port, 140- air pressure balance
Hole, 200- drive rod, 210- light bar segment, 220- screw thread rod segment, 300- plunger, 310- pedestal, 320-
Chock plug, 400- power device, 500- sealing ring.
Specific embodiment
The utility model is described in detail below in conjunction with attached drawing.
As shown in Figure 1-Figure 3, it the present embodiment provides a kind of 3D printing spray head, including nozzle body 100, drive rod 200, pushes away
Plug 300 and power device 400, wherein 100 side of nozzle body has feeding inlet 110, the spray of the lower end toper of nozzle body 100
Head end 120, the tip of spray head end 120 are discharge port 130, and the top of nozzle body 100 has mounting hole, power device
400 power end connection drive rod 200 simultaneously can drive drive rod 200 to rotate, and nozzle body 100 is arranged in power device 400
Top, drive rod 200 are inserted into the inside of nozzle body 100, and drive rod 200 by the mounting hole at 100 top of nozzle body
Lower end extend to spray head end 120；Plunger 300 includes chock plug made of pedestal 310 made of metal material and soft material
320, the shape of pedestal 310 is matched with the shape of 100 internal cavities of nozzle body, and the shape of chock plug 320 is and spray head end 120
Internal cavities shape matched taper has inside plunger 300 and runs through with the matched internal thread hole of drive rod 200, internal thread hole
320 upper and lower ends of chock plug, plunger 300 can be driven by drive rod 200 and be moved down and by the material inside nozzle body 100 from discharging
Mouth 130 squeezes out nozzle body 100.Screw thread rod segment 220 has external screw thread.
Specifically, this printing head is after printing is complete, power device 400 drives drive rod 200 to rotate, drive rod 200
It rotates clockwise and plunger 300 is driven to move down, pedestal 310 clears up 100 inner wall of nozzle body and prints material in 300 folding process of plunger
Material, scale removal process are as shown in Figure 2 and Figure 3.When plunger 300 is moved to spray head end 120, printed material can all go out substantially
Material mouth 130 is discharged.
The present apparatus drives drive rod 200 to rotate by the driving of power device 400, and drive rod 200 is by being threadedly engaged drive
Plunger 300 moves down, in folding process pedestal 310 clear up 100 inner wall of nozzle body, chock plug 320 by soft material gradually
Material inside 120 pyramidal structure of spray head end gradually squeezes out nozzle cavity, and chock plug 320 made of soft material can will be internal
The release that printed material gradually mitigates, effect are significantly better than hard metal material.
In the present embodiment, power device 400 is motor.
Drive rod 200 includes the screw thread for having the opposite light bar segment 210 and lower part of mounting hole with the top of nozzle body 100
Rod segment 220.The matched of the length of light bar segment 210 and plunger 300 in 100 inner cavity of nozzle body.
The thickness matching of the length of light bar segment 210 and pedestal 310 in 100 inner cavity of nozzle body, under print state, transmission
Bar 200 is overturn, agitating device of the drive rod 200 as cavity inside, avoids the printed material in nozzle body 100 too fast solidifying
Gu.
When this spray head works normally, motor drives drive rod 200 to rotate counterclockwise, and plunger 300 is in nozzle body 100
Top it is motionless, drive rod 200 stir printed material, when motor drive drive rod 200 rotate clockwise when, 300 basis of plunger
Self weight carries out cleanup action by the external screw thread of its internal screw thread and drive rod 200 with closing.
Air equalizer opening 140 is offered in the top end surface of nozzle body 100.Air equalizer opening 140 can avoid because of air pressure
Imbalance so that plunger 300 move up, move down facilitate it is smooth.
Preferably, being equipped with groove at mounting hole, sealing ring 500 is equipped in groove.
Feeding inlet 110 is extension pipeline, and extension pipeline is quick coupling, facilitates docking external equipment.
In the present embodiment, 100 internal cavities cross section of nozzle body is rectangle.
The above content is only the preferred embodiment of the utility model, for those of ordinary skill in the art, according to this reality
It, in specific embodiments and applications can be with many changes may be made, as long as these variations are without departing from this with novel thought
The design of utility model, belongs to the protection scope of the utility model.
Claims (9)
1. a kind of 3D printing spray head, it is characterised in that: including nozzle body, drive rod, plunger and power device, wherein the spray
Head body side has feeding inlet, and the spray head end of the lower end toper of nozzle body, the tip of spray head end is discharge port, described
The top of nozzle body has mounting hole, and the power end connection drive rod of the power device simultaneously can drive drive rod rotation, move
The top of nozzle body is arranged in power device, and the drive rod is inserted into nozzle body by the mounting hole at the top of nozzle body
Inside, and the lower end of drive rod extends to spray head end；The plunger includes pedestal and soft material system made of metal material
At chock plug, the shape of pedestal matches with the shape of nozzle body internal cavities, and the shape of chock plug is and spray head terminus inner is empty
The matched taper of chamber shape, the plunger inside, which has, runs through chock plug or more with the matched internal thread hole of drive rod, internal thread hole
Both ends, the plunger can be driven by drive rod and move down and the material inside nozzle body is squeezed out spray head master from discharge port
Body.
2. 3D printing spray head according to claim 1, it is characterised in that: the power device is motor.
3. 3D printing spray head according to claim 1, it is characterised in that: the drive rod includes the top with nozzle body
Screw thread rod segment with the opposite light bar segment of mounting hole and lower part.
4. 3D printing spray head according to claim 3, it is characterised in that: the length of light bar segment in the nozzle body inner cavity
With the matched of plunger.
5. 3D printing spray head according to claim 1, it is characterised in that: offered in the top end surface of the nozzle body
Air equalizer opening.
6. 3D printing spray head according to claim 1, it is characterised in that: be equipped with groove, the groove at the mounting hole
It is interior to be equipped with sealing ring.
7. 3D printing spray head according to claim 1, it is characterised in that: the feeding inlet is extension pipeline.
8. 3D printing spray head according to claim 7, it is characterised in that: the extension pipeline is quick coupling.
9. 3D printing spray head according to claim 1, it is characterised in that: nozzle body internal cavities cross section is square
Shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821695258.8U CN209240488U (en) | 2018-09-29 | 2018-09-29 | A kind of 3D printing spray head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821695258.8U CN209240488U (en) | 2018-09-29 | 2018-09-29 | A kind of 3D printing spray head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209240488U true CN209240488U (en) | 2019-08-13 |
Family
ID=67525459
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821695258.8U Expired - Fee Related CN209240488U (en) | 2018-09-29 | 2018-09-29 | A kind of 3D printing spray head |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209240488U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111844728A (en) * | 2020-09-20 | 2020-10-30 | 深圳市深华科科技有限公司 | 3D printer with air filtration system |
-
2018
- 2018-09-29 CN CN201821695258.8U patent/CN209240488U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111844728A (en) * | 2020-09-20 | 2020-10-30 | 深圳市深华科科技有限公司 | 3D printer with air filtration system |
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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: 20190813 Termination date: 20210929 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |