CN208682123U - A kind of extrusion mechanism of 3D printer - Google Patents
A kind of extrusion mechanism of 3D printer Download PDFInfo
- Publication number
- CN208682123U CN208682123U CN201821399305.4U CN201821399305U CN208682123U CN 208682123 U CN208682123 U CN 208682123U CN 201821399305 U CN201821399305 U CN 201821399305U CN 208682123 U CN208682123 U CN 208682123U
- Authority
- CN
- China
- Prior art keywords
- printing
- material extrusion
- head
- slide
- extrusion mechanism
- 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.)
- Active
Links
Abstract
The utility model discloses a kind of extrusion mechanisms of 3D printer, it is characterized in that, it prints slide bottom and is equipped with bite type sliding slot, the linking of printing slide bottom has and will increase the 3D printing head of material printing after printing wire rod melting, and the top for printing slide is equipped with the material extrusion mechanism that printing wire rod is transported in 3D printing head；The setting of material extrusion mechanism is above printing slide；3D printing head setting material extrusion mechanism below printing slide is equipped with pressing device.Its advantage is that: the printing slide for carrying 3D printing head makees the linear motion of X-direction on the I-shaped side's rail of X-axis.The pressing device of material extrusion mechanism can carry out pressing force adjustment, good compatibility to the printed material of unlike material；The printing slide of carrying is only by the power of X-direction, and abrasion is small, and long service life, maintenance workload is small, 3D printing head fluent motion, and printing wire vent is uniformly smooth accurate, and printing effect is more preferably；The extrusion mechanism of large-scale 3D printer suitable for high speed.
Description
Technical field
The utility model relates to a kind of 3D printers more particularly to a kind of rapid shaping 3D based on high-temperature fusion accumulation to beat
Print machine component.
Background technique
3D printer is a kind of electromechanical integration equipment of precision, generally the X-axis, Y-axis and Z axis three by being arranged on the rack
A axis composition, X-axis and Y-axis are located in an XY plane of movement perpendicular to Z axis, are referred to as XY axis；The setting of 3D printing head assembly
In X-axis, i.e., X-axis forms a right-angled intersection with Y-axis in a crisscross manner one on the other and passes through from 3D printing head assembly, X-axis, Y
It is moved independently of each other between axis and Z axis, the spacing between them is adjusted by print platform, realize that the solid of 3D printer is beaten
Print work.The generally existing defect below of the XY axis mechanism of common 3D printer: structure is complicated for XY shaft mechanical, and positioning accuracy is steady
Qualitative difference causes mechanical resistance big, and mechanical oscillation are big, and the installation and removal of 3D printing head are relatively difficult.
To overcome drawbacks described above, applicant has applied for a Patent No. " 2015202300138 ", a kind of entitled " 3D
The utility model patent of print head ", main technical schemes are: print head assembly is fixed below printing head base, feeder
Structure is fixed on above printing head base；Print head assembly includes the printing head by printed material melting and extrusion, can high temperature resistant
Feed pipe, the METAL HEATING PROCESS block that printing head is heated；METAL HEATING PROCESS block covers on printing head, and printing head is fixed
In feed pipe lower end, feed pipe upper end is fixed on printing head base；Passage is fixed on printing head base, and is passed downwardly through
Feed pipe extends to the inside of printing head.Feeding mechanism includes material extrusion seat and stepper motor and material extrusion on material extrusion seat
Head；The output shaft of stepper motor is equipped with gear, and material extrusion head is equipped with the bearing that is oppositely arranged with the gear, gear and bearing it
Between be equipped be provided as the small gap that the plastic wire of printed material passes through；In the corresponding position in gap, material extrusion head upper and lower part
Set on feeding port and discharge port relative to each other.It is a little that its is excellent: overall weight is light, and feed distance is short, and feeding is more accurate；Temperature compared with
The spaced heat of high printing head and the lower printing head base of temperature, significantly reduces the thermal losses of printing head, has
Conducive to energy conservation and environmental protection；The heat insula tion of King pipe, printing wire vent are uniformly smooth accurate.But when being used in large-scale 3D printer
There is also some defects, and since the diameter of the printing wire rod of various specifications is different, the feeding mechanism of existing 3D printer is to difference
Specification prints the feeding poor compatibility of wire rod, cannot be adjusted according to the diameter of printing wire rod, need replacing feeding mechanism
It can be carried out print job, reduce working efficiency.In addition, 3D printing head assembly is equipped with slide since 3D printer volume is larger
On, when work, the active force of X-axis and Y-axis acts on slide simultaneously, when print head is when middle position is mobile, due to
The bidirectional crossed stress of slide, frictional force is larger, causes abrasion big, long using the time, and it is difficult to ensure that its kinematic accuracy,
Inevitably influence the precision of printing.
Utility model content
To solve drawbacks described above existing for the extrusion mechanism of existing 3D printer, the utility model provides a kind of compatibility
Good, the more excellent 3D printer of performance extrusion mechanism, scheme are as follows:
A kind of extrusion mechanism of 3D printer, including printing slide, printing slide bottom are equipped with bite type sliding slot, and printing is slided
The linking of seat bottom has and will increase the 3D printing head of material printing after printing wire rod melting, and the top for printing slide is equipped with printing wire rod
The material extrusion mechanism being transported in 3D printing head；Material extrusion mechanism includes material extrusion seat, material extrusion stepper motor and material extrusion head, transparent material extrusion
Lid；Transparent material extrusion lid is detachably arranged on front side of material extrusion head, and material extrusion stepper motor is set to material extrusion seat side, the setting of material extrusion head erect
On front side of material extrusion seat；It is characterized in that the longitudinal feeding passage passed through for printing wire rod is equipped with inside the material extrusion head, in material extrusion head
Portion is equipped with material-extruding chamber, and longitudinal feeding passage is passed down through from material-extruding chamber, and pressing device is equipped in material-extruding chamber and opposite can be rolled
Dynamic drawing-inroller and bearing roller, drawing-inroller and bearing roller Relative distribution are in the left and right sides of longitudinal feeding passage, material extrusion step
Output shaft into motor puts in the material-extruding chamber where drawing-inroller, and feeding wheel case is on the output shaft of material extrusion stepper motor, bearing rolling
Wheel is arranged on pressing device, and the feeding passageway communicated with longitudinal feeding passage is formed between drawing-inroller and bearing roller；
Pressing device includes compressing connecting lever, regulating arm and adjusting screw；The corner for compressing connecting lever is rotatably fixed by a shaft
In lower right side, bearing roller, which is rotatably arranged in, compresses the upper connecting lever side that connecting lever upwarps, and it is flat that regulating arm is pressed in compression connecting lever
On the lower connecting lever put；Material extrusion head inside left is equipped with for the movable regulating tank of regulating arm oscilaltion, is equipped with above regulating tank
The T-slot of adjusting screw activity space is limited, the top of regulating arm is arranged by screw thread, is equipped with and supplies above T-slot for adjusting screw
The adjustment hole that adjustment tool is put in；Regulating tank upper side is equipped with observation window, and the upper side of regulating arm, which is equipped with, protrudes into sight
Examine the positioning index arm of window.
As an improvement of the above scheme and explanation, aforementioned print head includes trunnion, by printed material melting and squeeze out melt
It is meltblown head, and to the aluminium block that melting spray head is heated；Trunnion upper end is fixed on printing slide bottom, and the setting of melting spray head exists
Trunnion lower end, melting spray head are connected to by trunnion with the discharge port of material extrusion mechanism；Aluminium block covers on trunnion and melting spray head, by larynx
Pipe and melting spray head link together；Melting spray head is fixed on feed pipe lower end, and feed pipe upper end is fixed on printing slide simultaneously
It is communicated with the discharge port of material extrusion mechanism；Heating tube and thermocouple are embedded in aluminium block；Melting spray head top is mounting portion, melting spray
Head lower part is equipped with the nozzle of conical structure, and nozzle interior is equipped with the molten chamber of a reverse frustoconic structure, is equipped with and extends below molten chamber
Spray orifice outside to nozzle；It is equipped with inside printing slide for longitudinal threading hole for passing through of printing wire rod, longitudinal threading hole top and vertical
To between feeding passage lower part be equipped with feed pipe.
As an improvement of the above scheme and explanation, the side of aforementioned printing slide are equipped with model heat dissipation snail fan, model heat dissipation
The lower section linking of snail fan has wind-guiding accessory of the air port against nozzle；Material extrusion seat side is equipped with material extrusion radiator fan.Model heat dissipation snail fan
Orientation cooling is formed with wind-guiding accessory, the printed material fast cooling for the melting that printing head is squeezed out forms, is conducive to improve
Printing precision avoids generating small deformation under melting state because of material, influences printing effect.
As the explanation of above scheme, it is I-shaped by bite type sliding slot and the X-axis of X/Y plane movement mechanism to print slide
Square rail matching, prints slide in the I-shaped side's rail of X-axis and only carries out rectilinear direction movement.At this point, the X-axis of X/Y plane movement mechanism is transported
Motivation structure and Y-axis movement mechanism switch to " H " shape structure, i.e. X-axis movement mechanism is erected at Y-axis by pervious " ten " character form structure
On movement mechanism；Printing slide is slideably fastened on the I-shaped side's rail of X-axis of X-axis movement mechanism；It is carried as 3D printing head
The printing slide of body on X/Y plane when moving, the active force only slided by X-direction, and the active force of the movement of Y direction turns
It transfers on X-axis movement mechanism, i.e., X-axis movement mechanism carries the movement that printing slide makees Y direction in Y-axis movement mechanism, printing
Slide will not be caused to wear excessive by the power of X-axis and Y-axis both direction simultaneously, and influenced service life, increased maintenance work
Amount.By the linkage of controller control X-axis movement mechanism and Y-axis movement mechanism, material extrusion mechanism any position in X/Y plane is realized
The movement set, reduces mechanical resistance, reduces mechanical oscillation；3D printing head is more easily installed and dismantles；Installation and lineup is more square
Just, fast, the extrusion mechanism suitable for the large-scale 3D printer of high speed；The pressing device of material extrusion mechanism, can be to different materials
The printed material of matter carries out pressing force adjustment adjustment, good compatibility.Transparent material extrusion lid has used transparent material, can see at any time
Internal printing material is examined by situation, is noted abnormalities early.
From the foregoing, it will be observed that the utility model has the advantage that structure is simple, compact, scientific, design rationally, is easy system
It makes；Short distance feeding, feeding are more accurate；The pressing device of material extrusion mechanism can compress the printed material of unlike material
Dynamics adjustment, good compatibility；The printing slide of carrying only by the power of X-direction, wears small, long service life, maintenance workload
Small, 3D printing head fluent motion, printing wire vent is uniformly smooth accurate, and printing effect is more preferably；Large-scale 3D suitable for high speed is beaten
The extrusion mechanism of print machine.
Detailed description of the invention
Fig. 1 is the main view of the utility model.
Fig. 2 is the perspective view of Fig. 1.
Fig. 3 is the sectional view along A-A of Fig. 1.
Drawing reference numeral explanation: 1- prints slide, 2-bite type sliding slots, 5- material extrusion mechanism, 6-3D print head；50- is squeezed
Expect seat, 51- material extrusion head 52- material extrusion stepper motor, the longitudinal direction 53- feeding passage, 54- output shaft, 55- drawing-inroller, the rolling of 56- bearing
Wheel, the transparent material extrusion lid of 57-, 58- feeding passageway, 59- material-extruding chamber, 510- material extrusion radiator fan, 511- pressing device, 512-
Regulating arm, 513- adjusting screw, 514- regulating tank, 515-T shape slot, 516- adjustment hole, 517- observation window, 518- positioning index
Arm, 519- feed pipe, 520- compress connecting lever；60- melting spray head, 61- trunnion, 62- aluminium block, 64- nozzle, 65- melt chamber, 66-
Spray orifice, 68- heating tube, 69- thermocouple；98- model heat dissipation snail fan, 99- wind-guiding accessory.
Specific embodiment
With reference to the accompanying drawing and preferred embodiment, the utility model and its advantageous effects are carried out further detailed
It describes in detail bright.
Referring to Fig. 1 ~ Fig. 3, a kind of extrusion mechanism of 3D printer, including printing slide 1, printing 1 bottom of slide are equipped with card
Shell type sliding slot 2, the linking of printing 1 bottom of slide have and will increase the 3D printing head 6 of material printing after printing wire rod melting, print slide
1 top is equipped with printing wire rod and is transported to the material extrusion mechanism in 3D printing head 6；Material extrusion mechanism includes material extrusion seat 50, material extrusion stepping
Motor 52 and material extrusion head 51, transparent material extrusion lid 57；Transparent material extrusion lid 57 is detachably arranged in 51 front side of material extrusion head, material extrusion stepping electricity
Machine 52 is set to 50 side of material extrusion seat, and material extrusion head 51 is vertically arranged in 50 front side of material extrusion seat；It is characterized in that inside the material extrusion head 51
Equipped with for longitudinal feeding passage 53 for passing through of printing wire rod, being equipped with material-extruding chamber 59 inside material extrusion head 51, longitudinal feeding passage 53 from
Be passed down through in material-extruding chamber 59, in material-extruding chamber 59 equipped with pressing device 511 and can relative rolling drawing-inroller 55 and bearing rolling
Wheel 56, drawing-inroller 55 and 56 Relative distribution of bearing roller in the left and right sides of longitudinal feeding passage 53, material extrusion stepper motor 52
Output shaft 54 puts in the material-extruding chamber 59 where drawing-inroller 55,55 sets of drawing-inroller on the output shaft 54 of material extrusion stepper motor 52, axis
It holds idler wheel 56 to be arranged on pressing device 511, forms one and longitudinal feeding passage 53 between drawing-inroller 55 and bearing roller 56
The feeding passageway 58 communicated；Pressing device 511 includes compressing connecting lever 520, regulating arm 512 and adjusting screw 513；Compress connecting lever
520 corner is rotatably mounted to lower right side by a shaft, and bearing roller 56, which is rotatably arranged in, compresses connecting lever 520
The upper connecting lever side upwarped, regulating arm 512, which is pressed in, to be compressed on the lower connecting lever that connecting lever 520 is laid flat；51 inside left of material extrusion head is equipped with
For the movable regulating tank 514 of 512 oscilaltion of regulating arm, it is equipped with above regulating tank 514 and limits 513 activity space of adjusting screw
T-slot 515, the top of regulating arm 512 is arranged by screw thread, is equipped with for adjusting tool above T-slot 515 adjusting screw 513
The adjustment hole 516 put in；514 upper side of regulating tank is equipped with observation window 517, and the upper side of regulating arm 512, which is equipped with, to be put in
To the positioning index arm 518 of observation window 517.
Wherein, print head includes trunnion 61, by printed material melting and the melting spray head 60 of extrusion, and to melting spray head
60 aluminium blocks 62 heated；61 upper end of trunnion is fixed on printing 1 bottom of slide, and melting spray head 60 is arranged in 61 lower end of trunnion,
Melting spray head 60 is connected to by trunnion 61 with the discharge port of material extrusion mechanism；62 sets of aluminium block on trunnion 61 and melting spray head 60, are incited somebody to action
Trunnion 61 and melting spray head 60 link together；Melting spray head 60 is fixed on 519 lower end of feed pipe, and 519 upper end of feed pipe is fixed
It is communicated on printing slide 1 and with the discharge port of material extrusion mechanism；Heating tube 68 and thermocouple 69 are embedded in aluminium block 62；Melting spray
First 60 top is mounting portion, and 60 lower part of melting spray head is equipped with the nozzle 64 of conical structure, is equipped with an inverted round stage inside nozzle 64
The molten chamber 65 of shape structure melts the spray orifice 66 for being equipped with and being extended to outside nozzle 64 below chamber 65；It prints and is equipped with inside slide 1 for print wire
Longitudinal threading hole that material passes through, longitudinal threading hole top and longitudinal feeding passage are equipped with feed pipe 519 between 53 lower part.
In addition, the side of printing slide 1 is equipped with model heat dissipation snail fan 98, the 98 lower section linking of model heat dissipation snail fan has air port pair
The wind-guiding accessory 99 of nozzle 64；50 side of material extrusion seat is equipped with material extrusion radiator fan 510.
Book and specific embodiment do not constitute any restrictions to the utility model according to the above description, and the utility model is not
It is confined to specific embodiment disclosed and described above, to some modification and variation of the utility model, it should also fall into this
In the scope of protection of the claims of utility model.
Claims (3)
1. a kind of extrusion mechanism of 3D printer, including printing slide, printing slide bottom are equipped with bite type sliding slot, print slide
Bottom linking has and will carry out increasing the 3D printing head that material prints after printing wire rod melting, and the top for printing slide is defeated equipped with printing wire rod
The material extrusion mechanism being sent in 3D printing head；Material extrusion mechanism includes material extrusion seat, material extrusion stepper motor and material extrusion head, transparent material extrusion lid；
Transparent material extrusion lid is detachably arranged on front side of material extrusion head, and material extrusion stepper motor is set to material extrusion seat side, and the setting of material extrusion head erect exists
On front side of material extrusion seat；It is characterized in that the longitudinal feeding passage passed through for printing wire rod is equipped with inside the material extrusion head, inside material extrusion head
Equipped with material-extruding chamber, longitudinal feeding passage is passed down through from material-extruding chamber, pressing device is equipped in material-extruding chamber and can relative rolling
Drawing-inroller and bearing roller, drawing-inroller and bearing roller Relative distribution are in the left and right sides of longitudinal feeding passage, material extrusion stepping
The output shaft of motor puts in the material-extruding chamber where drawing-inroller, and feeding wheel case is on the output shaft of material extrusion stepper motor, bearing roller
It is arranged on pressing device, forms the feeding passageway communicated with longitudinal feeding passage between drawing-inroller and bearing roller；Pressure
Tight device includes compressing connecting lever, regulating arm and adjusting screw；The corner for compressing connecting lever is rotatably mounted to by a shaft
Lower right side, bearing roller, which is rotatably arranged in, compresses the upper connecting lever side that connecting lever upwarps, and regulating arm is pressed in compression connecting lever and lays flat
Lower connecting lever on；Material extrusion head inside left is equipped with for the movable regulating tank of regulating arm oscilaltion, and limit is equipped with above regulating tank
Determine the T-slot of adjusting screw activity space, the top of regulating arm is arranged by screw thread, is equipped with above T-slot for adjusting for adjusting screw
The adjustment hole that whole tool is put in；Regulating tank upper side is equipped with observation window, and the upper side of regulating arm, which is equipped with, protrudes into observation
The positioning index arm of window.
2. the extrusion mechanism of 3D printer as described in claim 1 will print it is characterized in that: the print head includes trunnion
Material melting and the melting spray head squeezed out, and to the aluminium block that melting spray head is heated；Trunnion upper end is fixed on printing slide
Bottom, the setting of melting spray head are connected to by trunnion with the discharge port of material extrusion mechanism in trunnion lower end, melting spray head；Aluminium block is covered in larynx
On pipe and melting spray head, trunnion and melting spray head are linked together；Melting spray head is fixed on feed pipe lower end, feed pipe upper end
It is fixed on printing slide and is communicated with the discharge port of material extrusion mechanism；Heating tube and thermocouple are embedded in aluminium block；Melting spray head
Top is mounting portion, and melting spray head lower part is equipped with the nozzle of conical structure, and nozzle interior is equipped with the molten of a reverse frustoconic structure
Chamber, molten chamber lower section are equipped with the spray orifice extended to outside nozzle；The longitudinal threading hole passed through for printing wire rod is equipped with inside printing slide,
Feed pipe is equipped between longitudinal threading hole top and longitudinal feeding passage lower part.
3. the extrusion mechanism of 3D printer as claimed in claim 1 or 2, it is characterized in that: the side of the printing slide is equipped with
Model heat dissipation snail fan, model heat dissipation snail fan lower section, which is connected, wind-guiding accessory of the air port against nozzle；Material extrusion seat side is equipped with material extrusion
Radiator fan.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821399305.4U CN208682123U (en) | 2018-08-29 | 2018-08-29 | A kind of extrusion mechanism of 3D printer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821399305.4U CN208682123U (en) | 2018-08-29 | 2018-08-29 | A kind of extrusion mechanism of 3D printer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208682123U true CN208682123U (en) | 2019-04-02 |
Family
ID=65887209
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821399305.4U Active CN208682123U (en) | 2018-08-29 | 2018-08-29 | A kind of extrusion mechanism of 3D printer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208682123U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113665110A (en) * | 2021-08-10 | 2021-11-19 | 深圳市洋明达科技有限公司 | 3D printer head, 3D printer and leveling method of 3D printer |
-
2018
- 2018-08-29 CN CN201821399305.4U patent/CN208682123U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113665110A (en) * | 2021-08-10 | 2021-11-19 | 深圳市洋明达科技有限公司 | 3D printer head, 3D printer and leveling method of 3D printer |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN208745355U (en) | A kind of 3D printer | |
| CN208682123U (en) | A kind of extrusion mechanism of 3D printer | |
| CN105965021B (en) | A kind of desktop low-melting-point metal three-dimensional printer shower nozzle | |
| WO2017067134A1 (en) | Internet-of-things-based 3d printer having closed-loop control function | |
| CN107498854B (en) | Ultrasonic plasticizing fused deposition modeling 3D printing device | |
| CN109366977A (en) | A kind of 3D printer with smoothing function | |
| CN112643205A (en) | Laser joule composite heat source metal filament additive manufacturing device and method | |
| CN101279337A (en) | Large-sized bender bidirectional deflection compensation mechanism | |
| CN207128274U (en) | Portable and collapsible 3D printer | |
| CN205467342U (en) | Servo duplex position hot melting machine | |
| CN207565036U (en) | A kind of brake block heat pressing forming machines | |
| CN208745362U (en) | A kind of XY shaft movement mechanism of 3D printer | |
| CN205631409U (en) | Open -type 3D printer | |
| CN209272373U (en) | A kind of planer-type squeeze riveter | |
| CN218098297U (en) | Test bed for detecting automobile intermediate transmission shaft | |
| CN206436545U (en) | A kind of unidirectional fibre wire-beam forming equipment | |
| CN207044711U (en) | One kind heats the all-in-one that presses | |
| CN209552452U (en) | A kind of 3D printer with smoothing function | |
| CN113551609B (en) | Photoelectric sensing device for monitoring overpressure and clearance of pulp molding product mold | |
| CN211999782U (en) | Non-contact ink-jet marking device | |
| CN207136199U (en) | A kind of mixed food 3D printing device | |
| CN206200023U (en) | Mo(u)ld bottom half double lead-screw feeding structure on full-automatic computer knives bending machine | |
| CN216804440U (en) | Based on industrial robot multipurpose 3D space lattice printing device | |
| CN109436442A (en) | A kind of full-automatic sheet butter stripping and slicing equipment for coating film | |
| CN204658980U (en) | Table top type many material powders three-dimensional printer |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |