CN205704585U - A kind of 3D printing head for printing hot melt cement material and 3D printer - Google Patents
A kind of 3D printing head for printing hot melt cement material and 3D printer Download PDFInfo
- Publication number
- CN205704585U CN205704585U CN201620626697.8U CN201620626697U CN205704585U CN 205704585 U CN205704585 U CN 205704585U CN 201620626697 U CN201620626697 U CN 201620626697U CN 205704585 U CN205704585 U CN 205704585U
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- China
- Prior art keywords
- hot melt
- printing
- valve body
- printing head
- extrusion case
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Abstract
This utility model provides a kind of 3D printing head for printing hot melt cement material and 3D printer.3D printing head includes two materials transport mechanisms, switching mechanism, heating arrangements and nozzle.Owing to 3D printing head is provided with two materials transport mechanisms and switching mechanism, when one of them materials transport mechanism feed, transmission mechanism is turned on by passage switching mechanism with nozzle, simultaneously close off the conducting of another one materials transport mechanism and nozzle, while i.e. one materials transport mechanism is to nozzle feed, another materials transport mechanism can be filled with hot melt cement, after completing, the opening and closing of switching mechanism two materials transport mechanisms of switching, realize two materials transport mechanisms uninterruptedly to nozzle feed, it is achieved print continuously；And also it being provided with heating arrangements, it is ensured that hot melt cement will not setting and hardening in transmitting procedure.
Description
Technical field
This utility model relates to 3D printing technique field, is specifically related to a kind of 3D for printing hot melt cement material and prints
Shower nozzle and 3D printer.
Background technology
3D printing technique is also called " rapid shaping technique ", extensive in fields such as medical treatment, mould, automobile, Aero-Space
Application.But the most on the market, for printing the 3D printer device people in building hot melt cement square face with the printing head matched also
Fewer, U.S.'s technology in this respect maintains the leading position, but domestic the most backward.For being used for printing building
The printing head of hot melt cement material, it is desirable to higher, the nozzle structure of traditional desktop type 3D printer device people can not meet
Use requirement.During printing building hot melt cement, due to the particularity of material, if can not be in the process of material conveying
Middle omnidistance heating, will easily cause line clogging, print and interrupt.In addition, how allowing material carry continuously is also to need
The big difficult point of to be solved one, if material cannot persistently carry will also result in printing interruption.
Summary of the invention
This utility model provides a kind of 3D printing head that can print hot melt cement continuously and 3D printer.
On the one hand, a kind of embodiment provides a kind of 3D printing head for printing hot melt cement material, including:
Two materials transport mechanisms, transmission mechanism includes actuator, push rod and material extrusion case, and actuator installs the upper of material extrusion case
End, the side of material extrusion case is provided with charging hole, and push rod is placed in material extrusion case, and one end of push rod is connected with actuator, and the other end has
For the push pedal of pusher, actuator drives push rod to move up and down in material extrusion case；
Switching mechanism, switching mechanism includes valve body and spool, and valve body has two charging holes and a discharge opening, and two are entered
Material Kong Junyu discharge opening UNICOM, spool is rotatably installed in valve body, and spool crosses two charging holes, and spool is positioned at two and enters
Being respectively equipped with a via on the position in material hole, two vias are arranged in a mutually vertical manner, and spool can be turned on wherein by rotation
One charging aperture；The lower end of the material extrusion case of transmission mechanism is connected with valve body, material extrusion case and charging hole UNICOM；
Heating arrangements, heating arrangements is arranged on lower end and the valve body of material extrusion case, for adding material extrusion case lower end and valve body
Heat；
And nozzle, nozzle is arranged on valve body lower end, with the discharge opening UNICOM of valve body, can change different-diameter as required
Nozzle.
Further, actuator is motor or servomotor, and push rod is accurate lead screw, sets between motor and material extrusion case
Having gear-box, be provided with gear train in gear-box, motor is connected with screw mandrel by gear train.
Further, also including stop mechanism, stop mechanism includes vertical pole and cross bar, and vertical pole can be arranged on up or down
On gear-box, one end of cross bar is removably mounted on the upper end of vertical pole；One end of screw mandrel passes gear-box, the other end of cross bar
The one end passing gear-box with screw mandrel is connected.
Further, switching mechanism also includes actuator, and actuator is connected with spool, drives Spool rotating.
Further, switching mechanism also includes power transmission shaft, gear train and installing rack, and actuator is motor or servo electricity
Machine, motor or servomotor are arranged on gear-box, and installing rack is arranged on valve body, power transmission shaft one end and motor or
Servomotor connects, and the other end may be rotatably mounted on installing rack；One end of spool passes valve body, and by gear train and transmission
Axle connects.
Further, heating arrangements includes heating tank and heating rod, and heating tank is annular-heating groove, is arranged on material extrusion case
Lower end, fire-bar is embedded in valve body.
Further, the charging aperture of material extrusion case is provided with feeding gate, and material feeding box is cylindrical structure, and feeding gate is that arc hardens
Structure.
Further, the gear train of switching mechanism includes that two are mutually perpendicular to meshed gears, two gears respectively with valve
Core and power transmission shaft connect.
Further, motor or the servomotor of switching mechanism is connected with power transmission shaft by shaft coupling.
On the other hand, a kind of embodiment provides a kind of 3D printer, including above-mentioned for printing hot melt cement
3D printing head.
According to 3D printing head and the 3D printer for printing hot melt cement material of above-described embodiment, owing to 3D prints
Shower nozzle is provided with two transmission mechanisms and switching mechanism, and when one of them transmission mechanism feed, switching mechanism is by transmission mechanism
Turn on nozzle, simultaneously close off the conducting of another one transmission mechanism and nozzle, same to nozzle feed of i.e. one transmission mechanism
Time, another transmission mechanism can be filled with hot melt cement, after completing, and the opening and closing of switching mechanism two transmission mechanisms of switching,
Realize two transmission mechanisms uninterruptedly to nozzle feed, it is achieved print continuously；And also it is provided with heating arrangements, it is ensured that hot melt water
Mud will not setting and hardening in transmitting procedure.
Accompanying drawing explanation
Fig. 1 is for printing the structural representation of the 3D printing head of hot melt cement material in a kind of embodiment；
Fig. 2 is for printing the partial sectional view of the 3D printing head of hot melt cement material in a kind of embodiment；
Fig. 3 is for printing the sectional view of the 3D printing head of hot melt cement material in a kind of embodiment.
Detailed description of the invention
Combine accompanying drawing below by detailed description of the invention the present invention is described in further detail.
Embodiment one:
Provide a kind of 3D printing head for printing hot melt cement material, this 3D printing head master in the present embodiment
It is used for printing hot melt cement material it can also be used to print other material easily condensed or hot melt materials.
As shown in figures 1 and 3,3D printing head mainly includes transmission mechanism 100, switching transmission structure 200, heating arrangements
300 and nozzle 400.
As it is shown in figure 1, transmission mechanism 100 mainly includes actuator 101, push rod 102 and material extrusion case 103, pacify for convenience
Dress and driving, transmission mechanism 100 also includes gear-box 104 and gear train 105.Actuator 100 is motor, actuator 100
Being arranged on the upper end of gear-box 104, the output shaft of motor extend in gear-box 104, gear train 105 include a gear wheel and
One little gear, little gear is arranged on the output shaft of motor, and gear wheel is arranged in gear-box 104 by planes carry, and
And gear wheel and little gear mesh together.Material extrusion case 103 is arranged on the lower end of gear-box 104, material extrusion case 103 by ring flange
For cylindrical structure, material extrusion case 103 is provided with a charging aperture, is provided with a feeding gate 106, feeding gate 106 on crowded material mouth
Be arranged on material extrusion case 103 by hinge, and the structure in twisted plate, formed with material extrusion case 103 during closedown one complete
Cylinder.Push rod 102 is screw mandrel, is placed in the cavity of material extrusion case 103, and the upper end of push rod 102 is arranged on gear wheel, canine tooth
The centre of wheel is provided with screwed hole, and push rod 102 is threadeded with gear wheel, and the upper end of push rod 102 passes gear-box 103.Push away
It is one-body molded that the lower end of bar 102 has push pedal, push pedal and push rod 102, i.e. push rod 102 becomes a rotation and lives up or down
Plug, push pedal is rounded slightly little than the cross section of material extrusion case 103.Motor drives size gear driven push rod 102 in rotary moving, it is achieved push away
Hot melt cement is pushed in moving up and down of bar 102.
In this example, transmission mechanism 100 has two, is mounted side by side together, and the gear-box 104 of two transmission mechanisms 100 closes
And become a big gear-box.
As it is shown on figure 3, switching transmission structure 200 includes valve body 201 and spool 202.Valve body 201 is a cuboid knot
Structure, valve body 201 has two charging holes and a discharge opening, and the charging aperture of two charging holes is arranged on the upper end of valve body 201,
The discharge opening of discharge opening is arranged on the lower end of valve body 201, and two charging holes converge and discharge opening UNICOM in valve body 201.Two
Transmission mechanism 100 is arranged on the upper end of valve body 201, and two material extrusion casees 103 are corresponding with two charging holes respectively to be installed so that material extrusion
Case 103 turns on charging hole.Spool 202 is pivot structure, and spool 202 may be rotatably mounted in valve body 201 by bearing, spool
One end of 202 passes valve body 201, and spool 202 crosses two charging holes, and is provided with conducting on the position be positioned at charging hole
Hole, two vias are arranged in a mutually vertical manner, and in two vias, charging hole is turned on by only one of which, and another is then closed, and i.e. begins
Whole only one of which charging hole is switched on.In order to prevent the material leakage of spool 202, the two ends of spool 202 are provided with sealing ring 207,
Making to exist between spool 202 and valve body 201 gap, hot melt cement also will not spill from gap.
Print to realize automated production, as it is shown on figure 3, switching transmission structure 200 also includes actuator 203, transmission
Axle 204, gear train 205 and installing rack 206.Actuator 203 is motor or servomotor, is arranged on transmission mechanism 100
On gear-box 104, the output shaft of actuator 203 extends vertically down gear-box 104.Installing rack 206 is arranged on valve body 201,
Installing rack 206 is provided with through hole, and power transmission shaft 204 is provided with annular boss, and the lower end of clamping power transmission shaft 204 is located in installing rack
In the through hole of 206, and being blocked by annular boss, the upper end of power transmission shaft 204 is connected by the output shaft of shaft coupling with actuator 203
Connect.Gear train 205 includes that two are mutually perpendicular to meshed gears, and a gear is arranged on the lower end of power transmission shaft 204, another tooth
Wheel is arranged on the spool 202 stretching out valve body 201.Actuator 203 drives spool 202 by power transmission shaft 204 and gear train 205
Rotate, it is achieved the switching of two charging hole conductings.
As in figure 2 it is shown, heating arrangements 300 includes heating tank 301 and heating rod 302.Heating tank 301 is annular-heating groove,
Heating tank 301 is fixedly mounted on the lower end of material extrusion case 103 by ring flange.Fire-bar 302 has many, is embedded in valve body respectively
In 201.Heating tank 301 and heating rod 302 are connected with extraneous heater, heat to material extrusion case 103 and valve body 201, prevent heat
The condensation cure of molten cement.
Nozzle 400 is arranged on the lower end of valve body 201, with discharge opening UNICOM.
As in figure 2 it is shown, in order to protect equipment, 3D printing head also includes that stop mechanism 500, stop mechanism 500 include indulging
Bar 501 and cross bar 502, vertical pole 501 can be arranged on gear-box 104 up or down, and one end of cross bar 502 is removably installed
Upper end at vertical pole 501.One end of push rod 102 passes gear-box 104, and the other end of cross bar 502 and push rod 102 pass gear-box
One end of 104 connects, it is achieved the rotation stop to push rod 102.
In other embodiments, transmission mechanism 100 can arrange multiple, such as 3 or 4, and the valve body of switching mechanism 200
Arranging the charging hole of corresponding number, and spool 202 also relative set on 201, transmission mechanism 100 may make up threeway or four-way
Valve body.
In other embodiments, controlling organization, controlling organization and transmission mechanism 100 and the step of switching mechanism 200 are also included
Entering motor electrical connection, controlling organization controls the printing of whole equipment.
The principle of the continuous feeding of this 3D printing head is: to one of them material extrusion case 103 filler, after filler, rotates valve
Core 201, valve body 201 opens the charging hole of correspondence position, and motor drives push rod 102 to move downward, and hot melt cement is imported to valve
In body 201, finally from nozzle 400, extrusion is used for printing, and during printing, another one charging hole is closed, and separately
An outer material extrusion case 103 carries out filler, completes filler before previous material extrusion case 103 has printed；When previous transmission mechanism
After 100 have printed hot melt cement, the charging hole of previous transmission mechanism 100 correspondence is closed by rotational valve core 201, and later is transmitted
The charging aperture of mechanism 100 correspondence is opened and is carried out same material extrusion, thus it is continual to realize two transmission mechanism 100 cycle alternations
Print continuously.
The 3D printing head for printing hot melt cement material that the present embodiment provides, owing to 3D printing head is provided with two
Individual transmission mechanism 100 and a switching mechanism 200, when one of them transmission mechanism 100 feed, switching mechanism 200 will transmission
Mechanism 100 turns on nozzle 400, simultaneously closes off the conducting of another one transmission mechanism 100 and nozzle 400, i.e. one conveyer
While structure 100 gives nozzle 400 feed, another transmission mechanism 100 can be filled with hot melt cement, after completing, switching machine
Structure 200 switches the opening and closing of two transmission mechanisms 100, it is achieved two transmission mechanisms 100 uninterruptedly give nozzle feed, it is achieved beat continuously
Print, returns to material extrusion case when the charging hole closedown of transmission mechanism 100 correspondence makes hot melt cement will not squeeze in print procedure
In 103.And also it being provided with heating arrangements, it is ensured that hot melt cement will not solidify in transmitting procedure and freeze.
Embodiment two:
In the present embodiment, it is provided that a kind of 3D printer.
This 3D printer includes the 3D printing head for printing hot melt cement material of above-described embodiment one.
The present invention is illustrated by use above specific case, is only intended to help and understands the present invention, not in order to limit
The present invention processed.For those skilled in the art, according to the thought of the present invention, it is also possible to make some simply
Deduce, deform or replace.
Claims (10)
1. the 3D printing head being used for printing hot melt cement material, it is characterised in that including:
Two materials transport mechanisms, described transmission mechanism includes actuator, push rod and material extrusion case, and described actuator installs described squeezing
The upper end of hopper, the side of described material extrusion case is provided with charging hole, and described push rod is placed in described material extrusion case, one end of described push rod
Being connected with described actuator, the other end has the push pedal for pusher, and described actuator drives described push rod at described material extrusion case
In move up and down；
Switching mechanism, described switching mechanism includes that valve body and spool, described valve body have two charging holes and a discharge opening, two
Individual described charging hole all with described discharge opening UNICOM, described spool is rotatably installed in described valve body, and described spool crosses
Two described charging holes, described spool is positioned on the position of two described charging holes and is respectively equipped with a via, two conductings
Hole is arranged in a mutually vertical manner, and described spool can turn on one of them charging aperture by rotation；Under the material extrusion case of described transmission mechanism
End is connected with described valve body, described material extrusion case and described charging hole UNICOM；
Heating arrangements, described heating arrangements is arranged on lower end and the described valve body of described material extrusion case, for described material extrusion case
Lower end and valve body heating；
And nozzle, described nozzle is arranged on described valve body lower end, with the discharge opening UNICOM of described valve body.
2. the 3D printing head for printing hot melt cement material as claimed in claim 1, it is characterised in that described actuator
For motor or servomotor, described push rod is accurate lead screw, is provided with gear-box, described tooth between described motor and material extrusion case
Being provided with gear train in roller box, described motor is connected with described screw mandrel by described gear train.
3. the 3D printing head for printing hot melt cement material as claimed in claim 2, it is characterised in that also include stop
Mechanism, described stop mechanism includes vertical pole and cross bar, and described vertical pole can be arranged on described gear-box up or down, described horizontal stroke
One end of bar is removably mounted on the upper end of described vertical pole；One end of described screw mandrel passes described gear-box, described cross bar
One end that the other end passes described gear-box with described screw mandrel is connected.
4. the 3D printing head for printing hot melt cement material as claimed in claim 3, it is characterised in that described switching machine
Structure also includes that actuator, described actuator are connected with described spool, drives described Spool rotating.
5. the 3D printing head for printing hot melt cement material as claimed in claim 4, it is characterised in that described switching machine
Structure also includes that power transmission shaft, gear train and installing rack, described actuator are motor or servomotor, described motor or watch
Taking motor to be arranged on described gear-box, described installing rack is arranged on valve body, described power transmission shaft one end and described motor
Or servomotor connects, the other end may be rotatably mounted on described installing rack；One end of described spool passes described valve body, and leads to
Cross gear train to be connected with described power transmission shaft.
6. the 3D printing head for printing hot melt cement material as claimed in claim 5, it is characterised in that described heater
Structure includes that heating tank and heating rod, described heating tank are annular-heating groove, is arranged on the lower end of described material extrusion case, described fire-bar
It is embedded in described valve body.
7. the 3D printing head for printing hot melt cement material as claimed in claim 6, it is characterised in that described material extrusion case
Charging aperture be provided with feeding gate, described material feeding box is cylindrical structure, and described feeding gate is arc plate structure.
8. the 3D printing head for printing hot melt cement material as claimed in claim 7, it is characterised in that described switching machine
The gear train of structure includes that two are mutually perpendicular to meshed gears, and two described gears are connected with described spool and power transmission shaft respectively.
9. the 3D printing head for printing hot melt cement material as claimed in claim 8, it is characterised in that described switching machine
The motor of structure or servomotor are connected with described power transmission shaft by shaft coupling.
10. a 3D printer, it is characterised in that include according to any one of claim 1 to 9 for printing hot melt cement
3D printing head.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620626697.8U CN205704585U (en) | 2016-06-22 | 2016-06-22 | A kind of 3D printing head for printing hot melt cement material and 3D printer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620626697.8U CN205704585U (en) | 2016-06-22 | 2016-06-22 | A kind of 3D printing head for printing hot melt cement material and 3D printer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205704585U true CN205704585U (en) | 2016-11-23 |
Family
ID=57316832
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620626697.8U Expired - Fee Related CN205704585U (en) | 2016-06-22 | 2016-06-22 | A kind of 3D printing head for printing hot melt cement material and 3D printer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205704585U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107756594A (en) * | 2017-11-29 | 2018-03-06 | 武汉理工大学 | A kind of fibre-reinforced more shower nozzle cement slurry 3D printers |
-
2016
- 2016-06-22 CN CN201620626697.8U patent/CN205704585U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107756594A (en) * | 2017-11-29 | 2018-03-06 | 武汉理工大学 | A kind of fibre-reinforced more shower nozzle cement slurry 3D printers |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| 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: 20161123 Termination date: 20200622 |