CN108715031A - The 3D printer extrusion device and its working method that Double-gear slows down - Google Patents
The 3D printer extrusion device and its working method that Double-gear slows down Download PDFInfo
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- CN108715031A CN108715031A CN201810503319.4A CN201810503319A CN108715031A CN 108715031 A CN108715031 A CN 108715031A CN 201810503319 A CN201810503319 A CN 201810503319A CN 108715031 A CN108715031 A CN 108715031A
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- gear
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- double
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
- B29C64/10—Processes of additive manufacturing
- B29C64/106—Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material
- B29C64/118—Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using filamentary material being melted, e.g. fused deposition modelling [FDM]
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
- B29C64/30—Auxiliary operations or equipment
- B29C64/307—Handling of material to be used in additive manufacturing
- B29C64/321—Feeding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y40/00—Auxiliary operations or equipment, e.g. for material handling
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Optics & Photonics (AREA)
Abstract
The present invention provides a kind of the 3D printer extrusion device and its working method of Double-gear deceleration, the 3D printer extrusion device that the Double-gear slows down includes case, the extrusion mechanism being located on case and the deceleration mechanism being located in over body case for driving extrusion mechanism to act, the extrusion mechanism includes two and squeezes out idler wheel and two extrusion gears, two squeeze out idler wheel and two extrusion gear relative spacing settings, 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, the belt wheel is by motor-driven rotation.The invention has the advantages that：Present invention decreases the overall weights of printing walking mechanism, make its movement velocity faster, meet the printing requirement of 3D printer.
Description
Technical field：
The 3D printer extrusion device and its working method to slow down the present invention relates to a kind of Double-gear.
Background technology：
FDM formula consumptive material extruders on the market now, when the torque of motor determines, running part mechanical structure is all can not
It adjusts, i.e., after the torque of its motor used determines, wire feed torque also determines therewith, can not be by adjusting extruder
Structure changes operation torque.Melted material is extruded into filament shape by 3D printer by extrusion mechanism, and the extrusion form of filament
It is had 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, meeting
Lead to motor desynchronizing and acutely shake, to keep heating head wire vent abnormal（It is meticulous to be embodied in wire vent, wire vent is uneven, breaks
It is discontinuously continuous）, seriously affected the surface quality and printing precision of printout.Especially in flying print, due to wire feed requirement
Speed is higher, and hot melt inside cavity pressure increases, and required wire feed torque multiple is caused to increase, and the above situation performance is particularly bright
It is aobvious.
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 led to motor desynchronizing and acutely shake, and cause heating head wire vent abnormal, although some is squeezed on the market
Go out machine by changing the methods of current of electric to adjust torque, but actually adjustable range is limited, when current is excessive, can 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
Go out mechanism, polymer material is fed by screw-type extruder structure, wherein screw-type extruder structure using the feed screw of transmission
It heats in feeder, molten polymer is extruded through nozzle by the heating feeder under high pressure, although this type is usual
It can realize high extrusion pressure, but important disadvantage is its weight, which limit the acceleration in X-Y plane, therefore
Limit overall print speed.Another disadvantage is that the large scale of Screw Extrusion mechanism, this makes it be difficult to attach to 3D printer
In.More conventional 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 structure speed, it is high
Resolution ratio and high extruded velocity can cause relative to reduce silk material can clamping surface area, and therefore lead to silk material
Sliding is generated between feeding equipment.Due to the sliding in extrusion device, the gap between theoretical and actual basal rate increases
It is big that printout difference quality measurement and structure is caused to be interrupted.
Invention content：
The present invention provides a kind of the 3D printer extrusion device and its working method of Double-gear deceleration, and the 3D which slows down is beaten
Print machine 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 object, the present invention adopts the following technical scheme that：
The 3D printer extrusion device that Double-gear of the present invention slows down, it is characterised in that：Including case, the extruder being located on case
Structure and be located at the deceleration mechanism in over body case for driving extrusion mechanism to act, the extrusion mechanism include two squeeze out idler wheels and
Two extrusion gears, two squeeze out idler wheel and two extrusion gear relative spacing settings, 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 the belt wheel is by motor-driven rotation.
Further, the rectangular hood-like shell of above-mentioned case, the extrusion mechanism are 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, it is bearing, two spacing squeezed out between idler wheel and two extrusion teeth that above-mentioned two, which squeezes out idler wheel,
Spacing between wheel is identical, and two squeeze out idler wheel and two extrusion gear mesh stone rollers.
Further, above-mentioned case is equipped with feed well and discharging interface.
The working method for the 3D printer extrusion device that Double-gear of the present invention slows down, it is characterised in that：The Double-gear subtracts
The 3D printer extrusion device of speed includes case, the extrusion mechanism that is located on case and is located in over body case for driving extruder
The deceleration mechanism of structure action, the extrusion mechanism include two and squeeze out idler wheel and two extrusion gears, two extrusion idler wheels and two
The setting of a extrusion gear relative spacing, by silk material in the interval, the deceleration mechanism includes belt wheel, first gear, with the
The coaxial second gear of one gear squeezes out gear coaxial third gear and the 4th gear, the belt wheel and the first tooth with two
Wheel is connected by the first belt, and the first gear is connect with third gear and the 4th gear by the second belt, the belt wheel
By motor-driven rotation；When work, motor driven belts wheel rotation, the belt wheel drives first gear to rotate by the first belt,
Coaxial second gear drives third and fourth gear synchronous, synchronized rotation by the second belt with first gear, respectively with third,
The coaxial extrusion gear of four gears roll squeezing and be pushed away to the silk material of importing.
Compared with prior art, the invention has the advantages that：Structure of the invention design is simple, reasonable, solves general
Logical FDM desktop 3D printer torques are too low to cause wire vent meticulous, reduces the overall weight of printing walking mechanism, makes its movement speed
Degree faster, while ensureing the basic precision of extrusion device and the uniform problem of extrusion pressure.Meet the printing requirement of 3D printer,
It has broad application prospects.
Description of the drawings：
The present invention is described in more detail with reference to the accompanying drawings and detailed description：
Fig. 1 is main view organigram of the present invention；
Fig. 2 is D structure schematic diagram of the present invention；
Fig. 3 is the back vision structure schematic diagram of Fig. 1；
Fig. 4 is motor Drive diagram.
Specific implementation mode：
The extrusion mechanism 2 and be located at that the 3D printer extrusion device that Double-gear of the present invention slows down includes case 1, is located on case 1
Deceleration mechanism 3 in over body case for driving extrusion mechanism 2 to act, the extrusion mechanism 2 include two and squeeze out idler wheel 4 and two
Gear 5 is squeezed out, two squeeze out idler wheel 4 and two extrusion 5 relative spacing of gear settings, described to subtract by silk material 6 in the interval
Fast mechanism 3 includes belt wheel 7, first gear 8, the second gear 9 coaxial with first gear, coaxial with two extrusion gears 5 the
Three gears 10 and the 4th gear 11, the belt wheel 7 are connect with first gear 8 by the first belt 12, the first gear 8 and
Three gears 10 and the 4th gear 11 are connected by the second belt 13, and the belt wheel 7 is driven by motor 14 and rotated.First gear 8
Diameter is bigger than 9 diameter of second gear, realizes speed change.
Further, for reasonable design, the rectangular hood-like shell of above-mentioned case 1, 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 that transmission, above-mentioned belt wheel 7 can be worm gear or runner, 7 one end of belt wheel and flexible axle free end by transmitting flexible axle 15
It is hinged, and 7 other end of belt wheel is equipped with the limiting slot or tooth being connect with the first belt, the first belt 12 can be with the second belt 13
Odontoid belt or vee-belt etc..
Further, it is bearing, two spacing squeezed out between idler wheel and two extrusion teeth that above-mentioned two, which squeezes out idler wheel 4,
Spacing between wheel is identical, and two squeeze out idler wheel and two extrusion gear mesh stone rollers.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 the torsion of large scale and stabilization
Square exports, and ensures enough extrusion power, the material of fusing is allow endlessly to squeeze out, ensure that the surface of shaped article
Quality reduces silk material since Motor torque deficiency causes the possibility of slip rate.The possibility for reducing motor desynchronizing, reduces
The load of motor, to extend the service life of motor.
Further, above-mentioned case is equipped with feed well 16 and discharging interface 17.
The rotation of first gear drives coaxial second gear rotation, third and fourth gear is driven 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 Double-gear of the present invention slows down, the 3D printer that the Double-gear slows down
The extrusion mechanism and be located at the deceleration in over body case for driving extrusion mechanism to act that extrusion device includes case, is located on case
Mechanism, the extrusion mechanism include two and squeeze out idler wheel and two extrusion gears, and two squeeze out idler wheel and two extrusion gear phases
Interval is arranged, by silk material in the interval, the deceleration mechanism includes belt wheel, first gear, coaxial with first gear
Second gear squeezes out gear coaxial third gear and the 4th gear with two, and the belt wheel passes through the first skin with first gear
Band connection, the first gear are connect with third gear and the 4th gear by the second belt, and the belt wheel is turned by motor driving
It is dynamic；When work, the rotation of motor driven belts wheel, the belt wheel drives first gear to rotate by the first belt, same with first gear
The second gear of axis drives third and fourth gear synchronous, synchronized rotation by the second belt, coaxial with third and fourth gear respectively
Gear is squeezed out the silk material of importing is carried out to roll crowded push away.
When existing FDM3D printer printing, finished surface lines out-of-flatness, motor desynchronizing is acutely shaken, and wire vent is absolutely
Continuous, the concrete reason for leading to the problem of these can be increased using Double-gear of the present invention deceleration since wire feed torque is insufficient
Wire feed torque reaches and improves finished surface precision and avoid motor due to acutely being shaken 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.Another disadvantage is that spiral shell
The large scale of bar extrusion mechanism, this makes it be difficult to attach in 3D printer.The configuration of the present invention is simple is convenient for disassembly and assembly, and Double-gear squeezes
Going out mechanism keeps extrusion firmly more balanced.
The present invention connects extrusion mechanism with motor by transmitting flexible axle, the weight of extrusion device is reduced, when making printing
Inertia can be reduced, keeps running fix more accurate, improves print speed, dismounting is easy to maintain.
The present invention solves in such a way that Double-gear slows down and increases torque and is motor desynchronizing and draws when wire feed torque is too small
Shake is played, the surface quality and internal soundness of printout are improved.
The present invention reduces silk material in feeding mechanism by using double modes for accommodating area for squeezing out wheel increase and silk material
In sliding situation, so that printer is also can guarantee printing precision under the working environment of flying print speed.
The present invention is used to melt the improved extrusion device of silk material manufacture 3D printer, with light structures and can
Thinner extruded material is squeezed out in the case of not having any sliding in silk material feeding mechanism with higher extruded velocity, and is adopted
The unitary construction speed of 3D printer is improved with long-range extruder motor, higher silk material material feed rate is by increasing silk material
Accommodate area and increased can be realized with friction by squeeze out between wheel and silk material.Wheel is squeezed out by silk material by two
It is fed into feed mechanism and increases silk material and squeeze out the contact surface area between wheel rolling bearing, reduce silk material feeding
The slip rate of generation.Print speed and printing precision are improved, the economic loss brought by the consumption of material is reduced.
The foregoing is merely presently preferred embodiments of the present invention, all equivalent changes done according to scope of the present invention patent with repair
Decorations should all belong to the covering scope of the present invention.
Claims (6)
1. the 3D printer extrusion device that a kind of Double-gear slows down, it is characterised in that：Including case, the extruder being located on case
Structure and be located at the deceleration mechanism in over body case for driving extrusion mechanism to act, the extrusion mechanism include two squeeze out idler wheels and
Two extrusion gears, two squeeze out idler wheel and two extrusion gear relative spacing settings, 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 the belt wheel is by motor-driven rotation.
2. the 3D printer extrusion device that Double-gear according to claim 1 slows down, it is characterised in that：The case 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
Gear mesh is squeezed out with two to grind.
5. the 3D printer extrusion device that Double-gear according to claim 1 slows down, it is characterised in that：It is set on the case
There are feed well and discharging interface.
6. a kind of working method for the 3D printer extrusion device that Double-gear slows down, it is characterised in that：What the Double-gear slowed down
The extrusion mechanism and be located in over body case for driving extrusion mechanism dynamic that 3D printer extrusion device includes case, is located on case
The deceleration mechanism of work, the extrusion mechanism include two and squeeze out idler wheel and two extrusion gears, and two extrusion idler wheels and two squeeze
Go out the setting of gear relative spacing, by silk material in the interval, the deceleration mechanism includes belt wheel, first gear and the first tooth
It takes turns coaxial second gear, squeeze out gear coaxial third gear and the 4th gear with two, the belt wheel is logical with first gear
The connection of the first belt is crossed, the first gear is connect with third gear and the 4th gear by the second belt, and the belt wheel is by electricity
Machine driving rotation；When work, motor driven belts wheel rotation, the belt wheel drives first gear to rotate by the first belt, with the
The coaxial second gear of one gear drives third and fourth gear synchronous, synchronized rotation by the second belt, respectively with third and fourth tooth
The coaxial extrusion gear of wheel roll squeezing and be pushed away to the silk material of importing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810503319.4A CN108715031A (en) | 2018-05-23 | 2018-05-23 | The 3D printer extrusion device and its working method that Double-gear slows down |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810503319.4A CN108715031A (en) | 2018-05-23 | 2018-05-23 | The 3D printer extrusion device and its working method that Double-gear slows down |
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| Publication Number | Publication Date |
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| CN108715031A true CN108715031A (en) | 2018-10-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810503319.4A Pending CN108715031A (en) | 2018-05-23 | 2018-05-23 | The 3D printer extrusion device and its working method that Double-gear slows down |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112873846A (en) * | 2020-12-22 | 2021-06-01 | 浙江理工大学 | 3D printer and crowded silk device thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206140932U (en) * | 2016-11-08 | 2017-05-03 | 西安交通大学青岛研究院 | Automatic novel silk machine that send that reloads and expect continuous printing absolutely |
| CN206781032U (en) * | 2017-06-06 | 2017-12-22 | 齐炳岩 | A kind of new 3D printer Double-wheel structure feeder |
| CN208410763U (en) * | 2018-05-23 | 2019-01-22 | 福建工程学院 | The 3D printer extrusion device that Double-gear slows down |
-
2018
- 2018-05-23 CN CN201810503319.4A patent/CN108715031A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206140932U (en) * | 2016-11-08 | 2017-05-03 | 西安交通大学青岛研究院 | Automatic novel silk machine that send that reloads and expect continuous printing absolutely |
| CN206781032U (en) * | 2017-06-06 | 2017-12-22 | 齐炳岩 | A kind of new 3D printer Double-wheel structure feeder |
| CN208410763U (en) * | 2018-05-23 | 2019-01-22 | 福建工程学院 | The 3D printer extrusion device that Double-gear slows down |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112873846A (en) * | 2020-12-22 | 2021-06-01 | 浙江理工大学 | 3D printer and crowded silk device thereof |
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| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20181030 |
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| RJ01 | Rejection of invention patent application after publication |