CN208410763U - The 3D printer extrusion device that Double-gear slows down - Google Patents
The 3D printer extrusion device that Double-gear slows down Download PDFInfo
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- CN208410763U CN208410763U CN201820774222.2U CN201820774222U CN208410763U CN 208410763 U CN208410763 U CN 208410763U CN 201820774222 U CN201820774222 U CN 201820774222U CN 208410763 U CN208410763 U CN 208410763U
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Abstract
The utility model provides a kind of 3D printer extrusion device that Double-gear slows down, the 3D printer extrusion device that the Double-gear slows down includes housing, the extrusion mechanism being located on housing and the deceleration mechanism being located in over body case for driving extrusion mechanism to act, the extrusion mechanism includes two extrusion idler wheels and two extrusion gears, two extrusion idler wheels and two extrusion gear relative spacings are arranged, pass through silk material in the interval, the deceleration mechanism includes belt wheel, first gear, the coaxial second gear with first gear, gear coaxial third gear and the 4th gear are squeezed out with two, the belt wheel is connect with first gear by the first belt, the first gear is connect with third gear and the 4th gear by the second belt, rotation is driven by motor in the belt wheel.The utility model has the following beneficial effects: the utility model reduces the overall weight of printing walking mechanism, makes its movement velocity faster, meet the printing requirement of 3D printer.
Description
Technical field:
The utility model relates to the 3D printer extrusion devices that a kind of Double-gear slows down.
Background technique:
FDM formula consumptive material extruder on the market now, when the torque of motor determines, running part mechanical structure is all
Uncontrollable, i.e., after the torque of its motor used determines, wire feed torque also determines therewith, can not be by adjusting extrusion
The structure of machine changes operation torque.Melted material is extruded into filament shape by extrusion mechanism by 3D printer, and the extrusion of filament
Form has a very large relationship with extrusion mechanism, and will have a direct impact on the quality of the product of printing.When wire feed torque is too small
When, it will lead to motor desynchronizing and acutely shake, to make heating head wire vent is abnormal (it is meticulous to be embodied in wire vent, wire vent is uneven
It is even, intermittently), seriously affect the surface quality and printing precision of printout.Especially in flying print, due to wire feed
It is required that speed is higher, inside cavity pressure increase is heated, required wire feed torque multiple is caused to increase, above situation performance is outstanding
It is obvious.
When i.e. the torque of its motor of FDM3D printer existing on the market determines now, wire feed torque also determines therewith,
But wire feed torque is too small to be will lead to motor desynchronizing and acutely shakes, and it is abnormal to cause heating head wire vent, although some is squeezed on the market
Machine adjusts torque by changing the methods of current of electric out, but actually adjustable range is limited, when current is excessive, will cause
The motor feels hot, it is possible to lead to motor because of loss of excitation and step-out.The extruder of existing FDM3D printer has single extruding is wheeled to squeeze
Mechanism out, screw-type extruder structure, wherein polymer material is fed by screw-type extruder structure using the feed screw of transmission
It heats in feeder, molten polymer is extruded through nozzle under high pressure by the heating feeder, although this seed type is usual
It can be realized high extrusion pressure, but important disadvantage is its weight, which limit the acceleration in X-Y plane, therefore
Limit overall print speed.Have another disadvantage that the large scale of Screw Extrusion mechanism, this makes it be difficult to attach to 3D printer
In.More common on the market and widely used extrusion mechanism be mostly it is single squeeze wheeled extrusion mechanism, extruding wheel can be had
Tooth, annular knurl, hobbing or otherwise handle, to increase friction to increase the traction that can be used for silk material
Power.It needs to squeeze out thinner melted material with higher feeding efficiency for high-resolution and faster building speed, it is high
Resolution ratio and high extruded velocity will lead to relative to reduce silk material can clamping surface area, and therefore lead to silk material
Sliding is generated between feeding device.Due to the sliding in extrusion device, the gap between theoretical and actual basal rate increases
Printout difference quality measurement and building is caused to be interrupted greatly.
Summary of the invention:
The utility model provides a kind of 3D printer extrusion device that Double-gear slows down, the 3D printer which slows down
Extrusion device simple structure and reasonable design advantageously ensures that the basic precision of extrusion device and extrusion pressure are uniform.
To achieve the above objectives, the present invention adopts the following technical solutions:
The 3D printer extrusion device that the utility model Double-gear slows down, it is characterised in that: including housing, be located on housing
Extrusion mechanism and be located at the deceleration mechanism in over body case for driving extrusion mechanism to act, the extrusion mechanism includes two and squeezes
Idler wheel and two extrusion gears out, two extrusion idler wheels and two extrusion gear relative spacings are arranged, and pass through silk in the interval
Material, the deceleration mechanism includes belt wheel, first gear, the second gear coaxial with first gear, coaxial with two extrusion gears
Third gear and the 4th gear, the belt wheel connect with first gear by the first belt, the first gear and third tooth
Wheel is connected with the 4th gear by the second belt, and rotation is driven by motor in the belt wheel.
Further, above-mentioned housing is in the hood-like shell of rectangle, and the extrusion mechanism is located at a surface of the hood-like shell of rectangle
On, the deceleration mechanism is located in the hood-like shell body of rectangle.
Further, transmission flexible axle is equipped between above-mentioned belt wheel and motor.
Further, above-mentioned two extrusion idler wheel is bearing, two spacing and two extrusion teeth squeezed out between idler wheel
Spacing between wheel is identical, and two extrusion idler wheels and two extrusion gear mesh are ground.
Further, above-mentioned housing is equipped with feed well and discharging interface.
The working method for the 3D printer extrusion device that the utility model Double-gear slows down, it is characterised in that: the bidentate
The 3D printer extrusion device that wheel slows down includes housing, the extrusion mechanism being located on housing and is located at crowded for driving in over body case
The deceleration mechanism of mechanism action out, the extrusion mechanism include two extrusion idler wheels and two extrusion gears, two extrusion idler wheels
Be arranged with two extrusion gear relative spacings, by silk material in the interval, the deceleration mechanism include belt wheel, first gear,
With first gear coaxial second gear, squeeze out the coaxial third gear and the 4th gear of gear with two, the belt wheel and the
One gear is connected by the first belt, and the first gear is connect with third gear and the 4th gear by the second belt, described
Rotation is driven by motor in belt wheel；When work, motor driven belts wheel rotation, the belt wheel drives first gear to turn by the first belt
Dynamic, coaxial second gear by the second belt drives third and fourth gear synchronous, rotates at the same speed with first gear, respectively with the
Three, the coaxial extrusion gear of four gears roll squeezing and be pushed away to the silk material of importing.
Compared with prior art, the utility model has the following beneficial effects: the design of the utility model structure is simple, closes
Reason, solves that common FDM desktop 3D printer torque is too low to cause wire vent meticulous, reduces the overall weight of printing walking mechanism,
Make its movement velocity faster, while guaranteeing the basic precision of extrusion device and the uniform problem of extrusion pressure.Meet 3D printer
Printing requirement, have broad application prospects.
Detailed description of the invention:
With reference to the accompanying drawings and detailed description to the further details of explanation of the utility model:
Fig. 1 is the utility model main view organigram；
Fig. 2 is the utility model D structure schematic diagram；
Fig. 3 is the back vision structure schematic diagram of Fig. 1；
Fig. 4 is motor Drive diagram.
Specific embodiment:
The 3D printer extrusion device that the utility model Double-gear slows down includes housing 1, the extrusion mechanism that is located on housing 1
2 and it is located at the deceleration mechanism 3 in over body case for driving extrusion mechanism 2 to act, the extrusion mechanism 2 includes two extrusion idler wheels
4 and two extrusion gears 5, two extrusion idler wheels 4 and two extrusion 5 relative spacings of gear are arranged, and pass through silk material in the interval
6, the deceleration mechanism 3 includes belt wheel 7, first gear 8, the second gear 9 coaxial with first gear and two extrusion gears 5
Coaxial third gear 10 and the 4th gear 11, the belt wheel 7 are connect with first gear 8 by the first belt 12, and described first
Gear 8 is connect with third gear 10 and the 4th gear 11 by the second belt 13, and the belt wheel 7 is driven by motor 14 and rotated.The
The diameter of one gear 8 is bigger than 9 diameter of second gear, realizes speed change.
Further, in order to design rationally, above-mentioned housing 1 is in the hood-like shell of rectangle, and the extrusion mechanism 2 is located at rectangular cover
On one surface of shape shell, the deceleration mechanism 3 is located in the hood-like shell body of rectangle.
Further, transmission flexible axle 15 is equipped between above-mentioned belt wheel 7 and motor 14.The installation site of motor 14 is far from the cover
Shell realizes transmission by transmission flexible axle 15, and above-mentioned belt wheel 7 can be worm gear or runner, 7 one end of belt wheel and flexible axle free end
Hingedly, and 7 other end of belt wheel is equipped with the limiting slot or tooth that connect with the first belt, the first belt 12 can be with the second belt 13
Odontoid belt or vee-belt etc..
Further, above-mentioned two extrusion idler wheel 4 is bearing, two spacing and two extrusion teeth squeezed out between idler wheel
Spacing between wheel is identical, and two extrusion idler wheels and two extrusion gear mesh are ground.As shown, silk material is taken turns from extrusion and the axis of rolling
Gap between holding enters, by two squeeze out that wheel increases silk material accommodate area, provide large scale and stable torsion
Square output, guarantees enough extrusion power, squeezes out the material of fusing endlessly, ensure that the surface of shaped article
Quality reduces silk material since Motor torque deficiency causes the possibility of slip rate.A possibility that reducing motor desynchronizing, reduces
The load of motor, to extend the service life of motor.
Further, above-mentioned housing is equipped with feed well 16 and discharging interface 17.
The rotation of first gear drives coaxial second gear rotation, drives third and fourth gear by the tensile force of belt
Rotation, achievees the effect that deceleration and increases torque.Clearance groove is formed between extruding wheel and rolling bearing, helps silk material to find it logical
Cross the path in silk material channel.Described two extruding wheels, which increase, can accommodate area to increase driving frictional force.Motor is separate
Extruder reduces the pressure to extruder.
The working method for the 3D printer extrusion device that the utility model Double-gear slows down, the 3D that the Double-gear slows down are beaten
Print machine extrusion device includes housing, the extrusion mechanism being located on housing and is located in over body case for driving extrusion mechanism to act
Deceleration mechanism, the extrusion mechanism include two extrusion idler wheels and two extrusion gears, two extrusion idler wheels and two extrusion teeth
Relative spacing setting is taken turns, by silk material in the interval, the deceleration mechanism includes belt wheel, first gear, same with first gear
The second gear of axis squeezes out the coaxial third gear and the 4th gear of gear, the belt wheel and first gear with two by the
The connection of one belt, the first gear are connect with third gear and the 4th gear by the second belt, and the belt wheel is driven by motor
Turn is dynamic；When work, motor driven belts wheel rotation, the belt wheel drives first gear rotation by the first belt, with the first tooth
It takes turns coaxial second gear and third and fourth gear synchronous, synchronized rotation is driven by the second belt, it is same with third and fourth gear respectively
The extrusion gear of axis roll squeezing and be pushed away to the silk material of importing.
When existing FDM3D printer prints, finished surface lines out-of-flatness, motor desynchronizing is acutely shaken, and wire vent is absolutely
Continuous, the concrete reason for generating these problems is since wire feed torque is insufficient, and being slowed down using the utility model Double-gear can
Increase wire feed torque, reaches and improve finished surface precision and motor is avoided acutely to shake as caused by step-out.
The extruder of existing FDM3D printer has single wheeled extrusion mechanism of extruding, screw-type extruder structure；Single extruding wheel
The wire feed torque of formula extrusion mechanism is too low, and extrusion is firmly uneven, be easy to cause fractureing for silk material；Screw-type extruder structure due to
Quality is larger, and which limit acceleration horizontal, in fore-and-aft plane, therefore limit overall print speed.Have another disadvantage that spiral shell
The large scale of bar extrusion mechanism, this is difficult to attach to it in 3D printer.The utility model structure is simply convenient for disassembly and assembly, bidentate
Wheel extrusion mechanism makes to squeeze out firmly more balanced.
The utility model connects extrusion mechanism with motor by transmitting flexible axle, reduces the weight of extrusion device, makes to beat
Inertia can be reduced when print, keeps running fix more accurate, improves print speed, dismounted easy to maintain.
It is motor desynchronizing that the utility model, which solves in such a way that Double-gear slows down and increases torque when wire feed torque is too small,
And cause to shake, improve the surface quality and internal soundness of printout.
The utility model increases by using double extrusion wheels and the mode for accommodating area of silk material reduces silk material and feeding
Sliding situation in mechanism, makes printer also can guarantee printing precision under the working environment of flying print speed.
The utility model is used to melt the improved extrusion device of silk material manufacture 3D printer, with light structures and
Thinner extruded material is squeezed out in the case where capable of not having any sliding in silk material feeding mechanism with higher extruded velocity, with
And the unitary construction speed of 3D printer is improved using long-range extruder motor, higher silk material material feed rate is to pass through increase
The accommodating area of silk material and by squeezing out being realized with friction for the increase between wheel and silk material.It will by two extrusion wheels
Silk material is fed into feed mechanism and increases silk material and squeezes out the contact surface area between wheel rolling bearing, reduces silk material
Feed the slip rate generated.Print speed and printing precision are improved, the consumption bring economic loss because of material is reduced.
The above is only the preferred embodiment of the present invention, it is all done according to present utility model application the scope of the patents it is equal
Deng variation and modification, it should all belong to the covering scope of the utility model.
Claims (5)
1. the 3D printer extrusion device that a kind of Double-gear slows down, it is characterised in that: including housing, the extruder being located on housing
Structure and be located at the deceleration mechanism in over body case for driving extrusion mechanism to act, the extrusion mechanism include two extrusions idler wheels with
Two extrusion gears, two extrusion idler wheels and two extrusion gear relative spacings are arranged, described to subtract by silk material in the interval
Fast mechanism includes belt wheel, first gear, the second gear coaxial with first gear, squeezes out the coaxial third gear of gear with two
With the 4th gear, the belt wheel is connect with first gear by the first belt, the first gear and third gear and the 4th tooth
Wheel is connected by the second belt, and rotation is driven by motor in the belt wheel.
2. the 3D printer extrusion device that Double-gear according to claim 1 slows down, it is characterised in that: the housing is in square
The hood-like shell of shape, the extrusion mechanism are located on a surface of the hood-like shell of rectangle, and the deceleration mechanism is located at the hood-like shell of rectangle
In body body.
3. the 3D printer extrusion device that Double-gear according to claim 1 slows down, it is characterised in that: the belt wheel and electricity
Transmission flexible axle is equipped between machine.
4. the 3D printer extrusion device that Double-gear according to claim 1 slows down, it is characterised in that: described two extrusions
Idler wheel is bearing, and two spacing squeezed out between idler wheel are identical as the spacing that two squeeze out between gear, two extrusion idler wheels
It is ground with two extrusion gear mesh.
5. the 3D printer extrusion device that Double-gear according to claim 1 slows down, it is characterised in that: set on the housing
There are feed well and discharging interface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820774222.2U CN208410763U (en) | 2018-05-23 | 2018-05-23 | The 3D printer extrusion device that Double-gear slows down |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820774222.2U CN208410763U (en) | 2018-05-23 | 2018-05-23 | The 3D printer extrusion device that Double-gear slows down |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208410763U true CN208410763U (en) | 2019-01-22 |
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ID=65111463
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820774222.2U Expired - Fee Related CN208410763U (en) | 2018-05-23 | 2018-05-23 | The 3D printer extrusion device that Double-gear slows down |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208410763U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108715031A (en) * | 2018-05-23 | 2018-10-30 | 福建工程学院 | The 3D printer extrusion device and its working method that Double-gear slows down |
| CN112923017A (en) * | 2021-01-29 | 2021-06-08 | 深圳市创想三维科技有限公司 | Multistage speed reduction extruder and 3D printing apparatus |
-
2018
- 2018-05-23 CN CN201820774222.2U patent/CN208410763U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108715031A (en) * | 2018-05-23 | 2018-10-30 | 福建工程学院 | The 3D printer extrusion device and its working method that Double-gear slows down |
| CN112923017A (en) * | 2021-01-29 | 2021-06-08 | 深圳市创想三维科技有限公司 | Multistage speed reduction extruder and 3D printing apparatus |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190122 Termination date: 20210523 |