CN209533688U - A kind of discharging device of 3D printer - Google Patents
A kind of discharging device of 3D printer Download PDFInfo
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- CN209533688U CN209533688U CN201821409543.9U CN201821409543U CN209533688U CN 209533688 U CN209533688 U CN 209533688U CN 201821409543 U CN201821409543 U CN 201821409543U CN 209533688 U CN209533688 U CN 209533688U
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- inner cavity
- clearance space
- printer
- hopper
- discharging device
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Abstract
The utility model discloses a kind of discharging device of 3D printer, including hopper, the internal inner cavity with lower ending opening；First feeding machanism, is connected with inner cavity, for supplying cement slurry；Cover, set on the outside of hopper, the clearance space between the surface of hopper；Mixing discharging nozzle, is arranged below cover, is all connected with the lower ending opening of clearance space and the lower ending opening of inner cavity；Second feeding machanism, is connected with clearance space, for supplying the accelerator of liquid；Extrusion mechanism is set in inner cavity, the cement slurry in inner cavity is squeezed out downwards；Control system is electrically connected with the first feeding machanism, the second feeding machanism and extrusion mechanism respectively and controls the movement of each mechanism；The above discharging device combines the accelerator that the cement slurry that hopper is discharged and clearance space are discharged, so that cement slurry can quickly solidify in the print procedure of 3D printer, control system controls the movement of each mechanism so that discharging device can be interrupted discharging and discharging is uniform.
Description
Technical field
The utility model relates to a kind of 3D printing technique field more particularly to a kind of discharging devices of 3D printer.
Background technique
Currently, being broadly divided into following two for the discharging device for the 3D printer that discharging material is cement slurry: the first
It is to be attached plastics barrel and air compressor machine by plastic catheter, when carrying out 3D printing, air compressor machine is opened, and passes through air pressure
Power enables cement slurry to squeeze out cement slurry from the nozzle position of plastics barrel；Second is by the valve rod of the plastics barrel of syringe-shaped
It is connected with dipper crowding gear, is squeezed out cement slurry using the thrust of dipper crowding gear.All there is following lack in the two kinds of above discharging devices
Point: 1. cement slurries need to meet good extrusion flowability simultaneously and need the characteristics of quickly solidifying after squeezing out, and cause viscosity suitable
Grout material is prepared difficult；2. when printing needs to be interrupted, the cement slurry still discharging under the effect of inertia of Fluid pressure,
To influence print quality；3. since cement slurry is easy solidification in air, and general discharging device does not have barrel
The wiper mechanism of mouth, be easy to cause the outlet obstruction of discharge.
Utility model content
A kind of in order to overcome the deficiencies of the prior art, the utility model provides 3D printer for facilitating cement slurry sets
Discharging device.
The technical scheme adopted by the utility model to solve the technical problem is as follows:
A kind of discharging device of 3D printer, comprising: hopper, the internal inner cavity with lower ending opening；First feeding machine
Structure is connected with inner cavity, for supplying cement slurry into the inner cavity；The outside of hopper is arranged in cover, the surface with hopper
Between formed lower ending opening clearance space；Mixing discharging nozzle, is arranged in the lower section of cover, with the lower ending opening of clearance space and
The lower ending opening of inner cavity is all connected；Second feeding machanism is connected with the clearance space, for supplying the rapid hardening of liquid
Agent；Extrusion mechanism is arranged in the lumen, for squeezing out the cement slurry in inner cavity downwards；Control system is fed with first respectively
Mechanism, the second feeding machanism and extrusion mechanism are electrically connected and control the movement of each mechanism.
First feeding machanism includes the first accumulator, and the first accumulator is connected with inner cavity by first pipe, the
It is connected with the first air compressor machine on one accumulator, first switch valve is provided in the first pipe.
Second feeding machanism includes the second accumulator, and the second accumulator is connected with clearance space by second pipe
Logical, second accumulator is connected with the driving mechanism that driving accelerator enters clearance space, is provided with second on second pipe
Switch valve.
The second pipe is provided with to be extended and the extended segment that be connected to inner cavity towards interior cavity direction, the second pipe and
Three-way cock valve is provided between the extended segment, clearance space.
The extrusion mechanism includes the pushing screw rod being rotatably arranged in the inner cavity of hopper, and the pushing screw rod is connected with drive
Move the driver of its rotation.
The driver includes the rotary cylinder coupled with the rotation axis of pushing screw rod, the rotary cylinder and control system phase
Even.
The lower ending opening of the hopper and the lower ending opening height of cover maintain an equal level, and the mixing discharging nozzle is removably mounted at
On the lower end surface of cover, the inside of mixing discharging nozzle, which has, to be connected and for mix cement slurry and speed with inner cavity and clearance space
The discharge gate of solidifying agent.
The beneficial effects of the utility model are: the discharging device of the 3D printer of the above structure is provided with positioned at hopper appearance
Face and the clearance space for being used to be discharged accelerator, the accelerator mixing being discharged in conjunction with the cement slurry and clearance space that hopper is discharged
Mixing discharge nozzle so that cement slurry can quickly solidify in the print procedure of 3D printer, in the process, control system
The movement of each mechanism is controlled so that discharging device can be interrupted discharging and discharging is uniform.
Detailed description of the invention
The present invention will be further described with reference to the accompanying drawings and examples:
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the cross section structure schematic diagram of A-A in Fig. 1.
Specific embodiment
Utility model will be further described in detail below with reference to the attached drawings and specific embodiments, however, it is desirable to say
Bright, the explanation to following implementation is schematically, not constitute the specific restriction to the utility model.
Referring to Figures 1 and 2, a kind of discharging device of 3D printer, comprising: hopper 1, it is internal that there is the interior of lower ending opening
Chamber；First feeding machanism 20, is connected with inner cavity, for supplying cement slurry into the inner cavity；Hopper 1 is arranged in cover 3
The clearance space 4 of lower ending opening is formed between outside, and the surface of hopper 1；Mixing discharging nozzle 5, is arranged in the lower section of cover 3,
All it is connected with the lower ending opening of clearance space 4 and the lower ending opening of inner cavity；Second feeding machanism 70, with the clearance space 4
It is connected, for supplying the accelerator of liquid；Extrusion mechanism 6 is arranged in the lumen, for squeezing the cement slurry in inner cavity downwards
Out；Control system is electrically connected with the first feeding machanism 20, the second feeding machanism 70 and extrusion mechanism 6 respectively and controls each machine
The movement of structure, herein, control system PLC.The cement slurry that hopper 1 is discharged and clearance space 4 are discharged the above discharging device
Accelerator combine so that cement slurry can quickly solidify in the print procedure of 3D printer, control system controls each machine
The movement of structure is so that discharging device can be interrupted discharging and discharging is uniform.It is wrapped from the accelerator part that clearance space 4 is discharged
It encloses in the outer edge for the cement slurry being discharged from inner cavity, partially lumps together with cement slurry, the shape for being conducive to cement slurry is fixed.
Wherein, first feeding machanism 20 includes the first accumulator 21, and the first accumulator 21 passes through the first pipe with inner cavity
Road 22 is connected, and the first air compressor machine is connected on the first accumulator 21, is provided with first switch valve 23 in the first pipe 22.
Second feeding machanism 70 includes the second accumulator 71, and the second accumulator 71 is connected with clearance space 4 by second pipe 72
Logical, second accumulator 71 is connected with the driving mechanism that driving accelerator enters clearance space 4, and the is provided on second pipe
Two switch valves 73.The driving mechanism can also be the second air compressor machine, can also be replaced by what cylinder connection push rod front and back pushed
Delivery device.
The second pipe 72 is provided with to be extended and the extended segment 721 that is connected to inner cavity towards interior cavity direction, and described second
Three-way cock valve 8 is provided between pipeline 72 and the extended segment 721, clearance space 4.When needing to clean under hopper 1 and hopper 1
When the mixing discharging nozzle 5 of side, first switch valve and second switch valve are closed, and the accelerator in the second accumulator 71 is emptied, and are added
Ethyl alcohol closes the connected relation between second pipe 72 and clearance space 4 using three-way cock valve 8 so that second pipe 72 with
It is connected between extended segment 721, starts driving mechanism by ethyl alcohol from the inner cavity for being discharged into hopper 1 in extended segment 721, thus clear downwards
Hopper 1 and mixing discharging nozzle 5 are washed, the case where blocking is prevented.It extends above section 721 and the second accumulator 71 constitutes cleaning dress
It sets, in other embodiments, the cleaning device of other structures can also be replaced by.
The extrusion mechanism 6 includes the pushing screw rod 61 being rotatably arranged in the inner cavity of hopper 1, and the pushing screw rod 61 connects
It is connected to the driver 62 of its rotation of driving, in the present embodiment, the driver 62 includes joining with the rotation axis of pushing screw rod 61
The rotary cylinder connect, the rotary cylinder are connected with control system.
Preferably, the lower ending opening height of the lower ending opening of the hopper 1 and cover 3 maintains an equal level, and the mixing discharging nozzle 5 can
Disassembly is mounted on the lower end surface of cover 3, and the inside of mixing discharging nozzle 5, which has, to be connected and be used for inner cavity and clearance space 4
The discharge gate of mix cement slurry and accelerator.
The preferred embodiments of the present invention have been specifically described above, certainly, the utility model can also using with
The different form of above embodiment, those skilled in the art are made without departing from the spirit of the present invention
Equivalent transformation or corresponding modification, all should belong in the protection scope of the utility model.
Claims (7)
1. a kind of discharging device of 3D printer characterized by comprising
Hopper, the internal inner cavity with lower ending opening；
First feeding machanism, is connected with inner cavity, for supplying cement slurry into the inner cavity；
The outside of hopper is arranged in cover, and the clearance space of lower ending opening is formed between the surface of hopper；
Mixing discharging nozzle, is arranged in the lower section of cover, is all connected with the lower ending opening of clearance space and the lower ending opening of inner cavity；
Second feeding machanism is connected with the clearance space, for supplying the accelerator of liquid；
Extrusion mechanism is arranged in the lumen, for squeezing out the cement slurry in inner cavity downwards；
Control system is electrically connected with the first feeding machanism, the second feeding machanism and extrusion mechanism respectively and controls each mechanism
Movement.
2. a kind of discharging device of 3D printer as described in claim 1, it is characterised in that:
First feeding machanism includes the first accumulator, and the first accumulator is connected with inner cavity by first pipe, the first storage
It is connected with the first air compressor machine on glassware, first switch valve is provided in the first pipe.
3. a kind of discharging device of 3D printer as described in claim 1, it is characterised in that:
Second feeding machanism includes the second accumulator, and the second accumulator is connected with clearance space by second pipe, institute
It states the second accumulator and is connected with the driving mechanism that driving accelerator enters clearance space, be provided with second switch on second pipe
Valve.
4. a kind of discharging device of 3D printer as claimed in claim 3, it is characterised in that:
The second pipe is provided with to be extended and the extended segment that is connected to inner cavity towards interior cavity direction, the second pipe with it is described
Three-way cock valve is provided between extended segment, clearance space.
5. a kind of discharging device of 3D printer as described in claim 1, it is characterised in that:
The extrusion mechanism includes the pushing screw rod being rotatably arranged in the inner cavity of hopper, and the pushing screw rod, which is connected with, drives it
The driver of rotation.
6. a kind of discharging device of 3D printer as claimed in claim 5, it is characterised in that:
The driver includes the rotary cylinder coupled with the rotation axis of pushing screw rod, which is connected with control system.
7. a kind of discharging device of 3D printer as described in claim 1, it is characterised in that:
The lower ending opening of the hopper and the lower ending opening height of cover maintain an equal level, and the mixing discharging nozzle is removably mounted at cover
Lower end surface on, the inside of mixing discharging nozzle, which has, to be connected with inner cavity and clearance space and for mix cement slurry and accelerator
Discharge gate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821409543.9U CN209533688U (en) | 2018-08-29 | 2018-08-29 | A kind of discharging device of 3D printer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821409543.9U CN209533688U (en) | 2018-08-29 | 2018-08-29 | A kind of discharging device of 3D printer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209533688U true CN209533688U (en) | 2019-10-25 |
Family
ID=68244861
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821409543.9U Active CN209533688U (en) | 2018-08-29 | 2018-08-29 | A kind of discharging device of 3D printer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209533688U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109129817A (en) * | 2018-08-29 | 2019-01-04 | 中山市武汉理工大学先进工程技术研究院 | A kind of discharging device of 3D printer |
| CN112476705A (en) * | 2020-11-06 | 2021-03-12 | 北京石油化工学院 | 3D printing head for concrete added with interfacial agent |
| CN115503071A (en) * | 2022-09-30 | 2022-12-23 | 西南交通大学 | Concrete 3D print head |
-
2018
- 2018-08-29 CN CN201821409543.9U patent/CN209533688U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109129817A (en) * | 2018-08-29 | 2019-01-04 | 中山市武汉理工大学先进工程技术研究院 | A kind of discharging device of 3D printer |
| CN112476705A (en) * | 2020-11-06 | 2021-03-12 | 北京石油化工学院 | 3D printing head for concrete added with interfacial agent |
| CN115503071A (en) * | 2022-09-30 | 2022-12-23 | 西南交通大学 | Concrete 3D print head |
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