CN104260349B - Fusion-deposition 3D printer and printing method thereof - Google Patents
Fusion-deposition 3D printer and printing method thereof Download PDFInfo
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- CN104260349B CN104260349B CN201410469682.0A CN201410469682A CN104260349B CN 104260349 B CN104260349 B CN 104260349B CN 201410469682 A CN201410469682 A CN 201410469682A CN 104260349 B CN104260349 B CN 104260349B
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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
- B29C67/00—Shaping techniques not covered by groups B29C39/00 - B29C65/00, B29C70/00 or B29C73/00
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Abstract
The invention discloses a fusion-deposition 3D printer. The fusion-deposition 3D printer comprises a shell, a lifting mechanism and a composite extruding mechanism, wherein the lifting mechanism is mounted in the shell; the composite extruding mechanism comprises a machine cylinder, a screw rod and a long-fiber conveying pipe, a feeding pipe communicated with a material cavity of the machine cylinder is arranged on the side wall of the machine cylinder, the screw rod is rotatably mounted in the material cylinder and is provided with a mounting channel, and the upper and lower ends of the screw rod are communicated through the mounting channel; the long-fiber conveying pipe is inserted into the mounting channel and is provided with a conveying channel for conveying long continuous fibers; the conveying channel, the mounting channel and the material cavity are sequentially communicated. The invention further discloses a printing method of the fusion-deposition 3D printer. According to the fusion-deposition 3D printer and the printing method thereof, the long continuous fibers and printing materials packing the long continuous fibers are synchronously extruded to a working platform, so that the strength and surface flatness of a printed product are improved, and the machining efficiency is improved.
Description
Technical field
The present invention relates to 3D printing technique is and in particular to a kind of fused deposition 3D printer and its Method of printing.
Background technology
3D printing is a kind of at present rapid shaping technique being widely used, and its moulding process principle is：Initially set up mesh
Then threedimensional model is carried out hierarchy slicing process with software, obtains each machined layer by the electronic 3-D model of mark part
The data message in face, under the control of the computer, carries out lamination increasing material manufacturing according to section section information, completes the system of target processing
Make.The advantage of 3D printing is not limited the moulds of industrial equipment it is not necessary to any by part shape complexity, and speed is fast, effect
Rate is high, is capable of the automated manufacturing of free shape entity, is widely paid attention to by increasingly.
Fused deposition 3D printer is one of current 3D printer.Fused deposition 3D printer because of equipment manufacturing cost and
Printed material cost is than less expensive and be widely used.But also there is following technological deficiency in fused deposition 3D printer：1st, melt
The product strength melting accumulation 3D printer printing is relatively low, and this is unable to reach the requirement of engineer applied；2nd, fused deposition 3D printer
The rough surface of printed product；3rd, the printed material limitation being suitable for is big.
Content of the invention
The invention aims to overcoming the shortcomings of that above prior art exists, there is provided a kind of simple and reasonable for structure,
The fused deposition 3D printer that the intensity of printed product is big and surface smoothness of printed product is good.Meanwhile, the present invention also provides
A kind of Method of printing of fused deposition 3D printer.
The purpose of the present invention is realized by following technical scheme：This fused deposition 3D printer, including housing and lifting
Mechanism, described elevating mechanism is installed in housing, also includes compound extruded mechanism, and described compound extruded mechanism includes machine barrel, spiral shell
Bar and long fibre delivery pipe, the side wall of described machine barrel is provided with the feed pipe connecting with the material chamber of machine barrel, and described screw rod is rotatable
Be installed on material intracavity, described screw rod is provided with installation passage, and described installation passage connects the top and bottom of screw rod；Described long fine
Dimension delivery pipe is inserted in installation passage, and described long fibre delivery pipe is provided with the transfer passage for conveying continuous fiber；Institute
State transfer passage, installation passage and material chamber to be sequentially communicated.
Installation passage is set in screw rod and long fibre delivery pipe is set in installation passage, constitute continuous fiber extrusion
System, this can make continuous long fiber peacekeeping wrap up its printed material to be extruded, thus improving intensity and the table of printed product simultaneously
Face smoothness, and high in machining efficiency.
Preferably, described compound extruded mechanism also includes first support, second support and long fibre conveying roller group, and described the
One support and second support are installed on elevating mechanism from top to bottom, and described long fibre conveying roller group is installed on first support, described
The upper end of machine barrel is installed on second support, and first support is fixed in the upper end of described long fibre delivery pipe, and described long fibre is defeated
Pipe is sent to be located at the lower section that long fibre conveys roller group, described long fibre delivery pipe is connected with long fibre conveying roller group.This is continuously long
Increase long fibre conveying roller group, this improves the automaticity of continuous fiber conveying it is ensured that continuous in fiber extrusion system
Long fibre can be stablized, reliably convey.
Preferably, long fibre conveying roller group includes the first motor, drive roll, driven voller, driving shaft and driven shaft, and described the
One motor is installed on the side of first support, and described driving shaft and driven shaft are parallelly mounted in first support, and described active
Axle and the first motor connection, described drive roll and driven voller are respectively arranged in driving shaft and driven shaft, and described drive roll and from
Dynamic roller is oppositely arranged.
Preferably, the entrance of the transfer passage of described long fibre delivery pipe be located between drive roll and driven voller just under
Side.
Preferably, the centrage of the described centrage in material chamber, the centrage of screw rod and long fibre delivery pipe is in same straight line
On.
Preferably, the lower section of described compound extruded mechanism is provided with work platformses and the slide rail of supporting work platformses.
Preferably, described compound extruded mechanism also includes fibre cutter, nozzle and cylinder, and described nozzle is installed on machine barrel
Discharging opening, described nozzle is provided with the excision passage mating with fibre cutter, and described excision passage is connected with the endoporus of nozzle, described
Cylinder is fixed on the lower surface of machine barrel, and described fibre cutter is installed on the expansion link of cylinder, and the insertion excision of described fibre cutter
Passage.
Preferably, the upper end of described feed pipe is provided with loading hopper, the centrage of described feed pipe and the centrage of machine barrel it
Between corner dimension be 30 °～90 °；The lower end of described machine barrel is provided with least 1 additional gas ket, and described heating collar is located at feed pipe
Lower section.
Preferably, the side of described second support is provided with the second motor, and described second motor passes through drive mechanism and screw rod
Connect, this drive mechanism is Worm and worm-wheel gearing.
Preferably, described elevating mechanism includes crane, screw mandrel and 2 guide rods, and 2 described guide rods are individually fixed in housing
Interior two ends, the two ends of described crane are equipped with the through hole being passed through by guide rod, and described screw mandrel is installed in housing, described lifting
Frame is socketed on screw mandrel.
The Method of printing of above-mentioned fused deposition 3D printer, comprises the following steps：
(1) set up the threedimensional model of target part on computers, then with software, threedimensional model is carried out hierarchy slicing
Process, obtain the panel data information of each processing aspect, and be converted into motion track instruction and the elevator of work platformses
Structure drives the instruction that compound extruded mechanism moves up and down；
(2) when starting working, add printed material to loading hopper, printed material enters the material chamber of machine barrel by feed pipe,
Printed material becomes molten condition in material intracavity, and the printed material of these molten conditions is pushed to nozzle by screw rod rotary squeezing；
Meanwhile, continuous fiber conveys the transfer passage that roller group enters long fibre delivery pipe, these continuous fibers from long fibre
After transfer passage, the printed material that movement is melted to the outlet of nozzle impregnates and wraps up, continuous fiber
And wrap up its printed material and be extruded to the corresponding position of work platformses from the outlet of nozzle simultaneously and carry out fused deposition, fiber
Cutting knife, then according to instruction, completes continuous fiber to be cut off after print track each time, thus completing to print.
Specifically, the continuous fiber that above-mentioned fused deposition 3D printer adopts when printing can be carbon fiber, glass
Fiber, aramid fiber, spandex fibre, Plant fiber or metallic fiber or each fiber through resin prepreg stain.
This uses different fibers according to the different demands of product, thus also having widened the use species of printed material.
The present invention has such advantages as with respect to prior art：
1st, screw rod is provided with installation passage by the present invention, and arranges long fibre delivery pipe in installation passage, then printed
Cheng Zhong, continuous fiber can be impregnated after parcel by printed material simultaneously, continuous fiber with wrap up its printed material together with by
Extrude and carry out fused deposition to work platformses, then this fused deposition 3D printer can print during be simultaneously introduced continuously long
Fiber, and make long fibre ordered arrangement, which greatly enhances the intensity of printed product, this is equal to add in concrete arranges in order
The intensity to increase armored concrete for the reinforcing bar of row, the increase of printed product intensity meets the requirement of engineer applied.
2nd, the fused deposition 3D printer in the present invention because can print during be simultaneously introduced continuous long fibre, this
Improve the intensity of printed product, thus in the case of meeting printed product intensity, it is possible to decrease the limitation that printed material uses
Property.
3rd, in print procedure, the printed material that continuous fiber is melted impregnates and wraps up the present invention, which overcomes biography
Shaggy defect caused by system fibre reinforced materials injecting products or extruded product surface floating fiber, improves printed product
Quality.
4th, the present invention is in print procedure, continuous fiber from the transfer passage of long fibre delivery pipe out after, and in quilt
Before extrusion nozzle, the printed material that these continuous fibers can be melted impregnates and wraps up, and continuous fiber with parcel its
Printed material is extruded simultaneously, and relatively conventional printing is processed, and the mode of this continuous fiber and printed material synchronization extrusion carries
The high efficiency printing.
Brief description
Fig. 1 is the structural representation of the fused deposition 3D printer of the present invention.
Fig. 2 is the front view of the fused deposition 3D printer of the present invention.Wherein housing is stripped.
Fig. 3 is the structural representation of the compound extruded mechanism of the present invention.
Fig. 4 is the explosive view of the compound extruded mechanism of the present invention.
Fig. 5 is the enlarged diagram at I in Fig. 4.
Fig. 6 is the sectional view of the compound extruded mechanism of the present invention.
Fig. 7 is the enlarged diagram at H in Fig. 6.Wherein heating coil does not draw.
Fig. 8 is the structural representation of the screw rod of the present invention.
Fig. 9 is the structural representation of the machine barrel of the present invention.This in figure depicts the connection between feed pipe and machine barrel.
Specific embodiment
The invention will be further described with reference to the accompanying drawings and examples.
Fused deposition 3D printer as shown in Figures 1 to 9, including housing 1 and elevating mechanism 2, described elevating mechanism 2 is pacified
It is loaded in housing 1, also includes compound extruded mechanism 3, described compound extruded mechanism 3 includes machine barrel 301, screw rod 302 and long fibre
Delivery pipe 303, the side wall of described machine barrel 301 is provided with the feed pipe 304 connecting with the material chamber 3011 of machine barrel 301, described screw rod
302 are rotatably installed in material chamber 3011, and described screw rod 302 is provided with installation passage 3021, and described installation passage 3021 connects
The top and bottom of screw rod 302；Described long fibre delivery pipe 303 is inserted in installation passage 3021, described long fibre delivery pipe
303 are provided with the transfer passage 3031 for conveying continuous fiber 4；Described transfer passage 3031, installation passage 3021 and material chamber
3011 are sequentially communicated.
As shown in Figure 8 and Figure 9, increase installation passage 3021 in screw rod 302, and this installation passage 3021 is located at screw rod 302
Centre, that is, the centrage of installation passage 3021 overlap with the centrage of screw rod 302.Meanwhile, this installation passage 3021 is fine with long
The profile of dimension delivery pipe 303 is mated relatively, and this makes long fibre delivery pipe 303 preferably be installed in installation passage 3021, at this
In embodiment, the section of installation passage 3021 is rounded.In print procedure, only only screw rod 302 can be driven by the second motor 6
Dynamic rotation, and machine barrel 301 and long fibre delivery pipe 303 are with respect to screw rod transfixion.In the rotation process of screw rod 302, turn
Dynamic screw rod 302 is sheared to printed material and is extruded, so that printed material equably, is stably extruded onto nozzle 309；
Meanwhile, continuous fiber 4 is subject to long fibre to convey acting on of roller group 307, and continuous fiber 4 is first from long fibre delivery pipe
303 transfer passage 3031 upper end enters, and then stretches out from the lower end of transfer passage 3031, continuous fiber 4 is from transfer passage
3031 lower end moves to the outlet of the endoporus 3092 of nozzle 309 during this, and the printed material being melted impregnates and wraps up,
Then printed material is pressed down against by screw rod 302, and continuous fiber 4 continues to be moved down by long fibre conveying roller group 307, from
And continuous fiber 4 is extruded from the outlet of the endoporus of nozzle 309 together with the printed material of parcel.It is to allow printed material by more
Good extrusion, material chamber 3011 lower end base is in inverted cone.
As shown in Fig. 3, Fig. 4 and Fig. 6, described compound extruded mechanism also includes first support 305, second support 306 and length
Fiber conveys roller group 307, and described first support 305 and second support 306 are installed on elevating mechanism 2 from top to bottom, described long fine
Dimension conveying roller group 307 is installed on first support 305, and the upper end of described machine barrel 301 is installed on second support 306, described long fibre
First support 305 is fixed in the upper end of delivery pipe 303, and described long fibre delivery pipe 303 is located at long fibre and conveys roller group 307
Lower section, described long fibre delivery pipe 303 conveys roller group 307 with long fibre and is connected.First support 305 and the knot of second support 306
Structure is similar, and first support 305 and second support be arranged in parallel about 306, and the upper end of long fibre delivery pipe 303 is fixed on first
The base plate of frame 305；Second support 306 is fixed in the upper end of machine barrel 301.And screw rod 302 inserts the material chamber 3011 of machine barrel 301, spiral shell
The upper end of bar 302 is passed through bearing 5 and is connected with the upper end in material chamber 3011, and this makes screw rod 302 will not drive machine barrel 301 when rotating.Spiral shell
Bar 302 passes through Worm and worm-wheel gearing and screw rod by the second Motor drive 6 positioned at second support 305 side, the second motor 6
302 connections.As shown in Figure 3 and Figure 6, worm gear 7 is socketed on the upper end of screw rod 302, and one end of worm screw 8 and the second motor 6 is defeated
Shaft connects, and the other end of worm screw 8 is connected with worm gear 7.
As shown in Fig. 3, Fig. 4 and Fig. 6, long fibre conveying roller group 307 includes the first motor 3071, drive roll 3072, driven
Roller 3073, driving shaft 3074 and driven shaft 3075, described first motor 3071 is installed on the side of first support 305, described master
Moving axis 3074 and driven shaft 3075 are parallelly mounted in first support 305, and described driving shaft 3074 passes through gear drive
14 are connected with the first motor 3071, and described drive roll 3072 and driven voller 3073 are respectively arranged in driving shaft 3074 and driven shaft
3075, and described drive roll 3072 and driven voller 3073 be oppositely arranged.Long fibre conveying roller group 307 is used for continuous fiber
Conveying, wherein mainly completes the conveying to continuous fiber by drive roll 3072 and driven voller 3073 engaged transmission.Drive roll
3072 and driven voller 3073 be all cased with the roller set that soft material is made, and the roller set phase of the roller set of drive roll 3072 and driven voller 3073
Patch, this ensures the friction between continuous fiber 4 and roller set, makes effective, the stable shifting under friction force of continuous fiber 4
Dynamic.
As shown in fig. 6, the entrance of the transfer passage 3031 of described long fibre delivery pipe 303 is located at drive roll 3072 and driven
Underface between roller 3073.Using this design, this can ensure continuous fiber 4 between drive roll 3072 and driven voller 3073
Accurately enter transfer passage 3031.
The centrage of the centrage, the centrage of screw rod 302 and long fibre delivery pipe 303 in described material chamber 3011 is with always
On line.Using this design, then the printed material melting can uniformly wrap up continuous fiber 4, improves the product of printed product further
Matter.
As depicted in figs. 1 and 2, the lower section of described compound extruded mechanism 3 is provided with work platformses 9 and supports work platformses 9
Slide rail 10.Slide rail 10 comprises mutually perpendicular slide rail A1001 and slide rail B1002, and work platformses 9 are slidably installed on slide rail
A1001, and slide rail A1001 is slidably installed on slide rail B1002.Using this design, work platformses 9 can pass through two in level
Individual slide rail carries out the movement along X-direction with along Y direction.And compound extruded mechanism 3 can by elevating mechanism 2 carry out on move down
Dynamic, thus completing 3D printing.
As shown in Figure 6 and Figure 7, described compound extruded mechanism 3 also includes fibre cutter 308, nozzle 309 and cylinder 310, institute
State the discharging opening that nozzle 309 is installed on machine barrel 301, described nozzle 309 is provided with the excision passage mating with fibre cutter 308
3091, described excision passage 3091 is connected with the endoporus 3092 of nozzle 309, and described cylinder 310 is fixed on the lower end of machine barrel 301
Face, described fibre cutter 308 is installed on the expansion link of cylinder 310, and described fibre cutter 308 insertion excision passage 3091.Fine
It is mobile, using fibre cutter 308 cut-out continuous fiber that dimension cutting knife 308 passes through cylinder 310.As shown in figure 5, fibre cutter 308
Middle part be provided with shearing perforation 3081, this shearing perforation 3081 is corresponding with the endoporus 3092 of nozzle 309.When cylinder 310 stretches out, shearing
Hole 3081 is staggered with the endoporus 3092 of nozzle 309, thus cutting off continuous fiber 4.
As shown in Figure 1 to Figure 4, shown in Fig. 6 and Fig. 9, the upper end of described feed pipe 304 is provided with loading hopper 11, described feed pipe 304
Centrage and the centrage of machine barrel 301 between corner dimension be 60 °；The lower end of described machine barrel 301 is provided with least 1 external heat
Circle 12, described heating collar 12 is located at the lower section of feed pipe 304.Feed pipe 304 inclined design, this ensure printed material stable, can
That leans on injects in material chamber 3011 from feed pipe 304.In print procedure, the startup of heating collar 12 determines according to printed material, such as
Fruit printed material is the non-thermofusible materials such as viscous liquid thermosets, viscous liquid photo-curing material, then do not need
Start heating collar 12, only rotate by screw rod 302 and the printed material of liquid is pressed to nozzle 309.
As depicted in figs. 1 and 2, described elevating mechanism 2 is included described in crane 201, screw mandrel 202 and 2 guide rods 203,2
Guide rod 203 is individually fixed in the two ends in housing 1, and the two ends of described crane 201 are equipped with the through hole being passed through by guide rod 203,
Described screw mandrel 202 is installed in housing 1, and described crane 201 is socketed on screw mandrel 202.Guide rod 203 is used for the effect of guiding, and
Ensure the stable movement of crane 201.Specifically, first support 305 and second support 306 are parallelly mounted to lift from top to bottom
Frame 201.Using this design, structure is simple, easy for installation.
The Method of printing of above-mentioned fused deposition 3D printer, comprises the following steps：
(1) set up the threedimensional model of target part on computers, then with software, threedimensional model is carried out hierarchy slicing
Process, obtain the panel data information of each processing aspect, and be converted into motion track instruction and the elevator of work platformses
Structure drives the instruction that compound extruded mechanism moves up and down；
(2) when starting working, add printed material to loading hopper 11, printed material enters machine barrel 301 by feed pipe 304
Material chamber 3011, printed material in material chamber 3011 in become molten condition, the printed material of these molten conditions is rotated by screw rod
Extruding is pushed to nozzle 309；Meanwhile, continuous fiber conveys roller group 307 from long fibre and enters long fibre delivery pipe 303
Transfer passage 3031, after transfer passage 3031, movement is melted to the outlet of nozzle these continuous fibers
Printed material impregnate and wrap up, continuous fiber and wrap up its printed material and be extruded to from the outlet of nozzle 309 simultaneously
The corresponding position of work platformses 9 carries out fused deposition, fibre cutter then according to instruction, complete each time after print track to even
Continuous long fibre is cut off, thus completing to print.
Specifically, when being printed using this fused deposition 3D printer, its print procedure is：
A, set up the threedimensional model of target part first on computers, then with software, threedimensional model is carried out layering and cut
Piece is processed, and obtains the panel data information of each processing aspect, and is converted into the motion track instruction of work platformses and lifts
Mechanism drives the instruction that compound extruded mechanism moves up and down；
B, printing bottom first slice plane layer：Compound extruded mechanism 3 and work platformses 9 are in initial position；Start
During work, add printed material to loading hopper 11, printed material enters the material chamber 3011 of machine barrel 301, screw rod by feed pipe 304
302 rotations are sheared to the printed material in material chamber 3011 and are extruded, and printed material becomes molten condition in material chamber 3011,
Screw rod 302 rotates and for the printed material of melting to press to nozzle 309；Synchronous, drive roll 3072 and driven voller 3073 engage
Under effect, continuous fiber enters the transfer passage 3031 of long fibre delivery pipe 303, and these continuous fibers are through transfer passage
After 3031, between the outlet of transfer passage 3031 and the entrance of nozzle 309 endoporus, the printed material of continuous fiber and melting
Converge, then the printed material that continuous fiber is melted impregnates and wraps up, its printed material is wrapped up in then continuous long fiber peacekeeping
Extrude from nozzle 309；Fibre cutter 308, then according to instruction, completes continuous fiber to be cut after print track each time
Disconnected, the printed material fused deposition being wrapped in continuous fiber, in work platformses 9, forms first slice plane layer；
C, second slice plane layer of printing：By the driving of screw mandrel 202, then crane 201 drive compound extruded mechanism
Rise work unit's height, repeat charging, the conveying of printed material screw rod rotary extrusion, continuous fiber, fibre cutting
Journey, completes the printing of second slice plane layer；
D, printing the 3rd are to last slice plane layer：Repeat step C, prints the 3rd and puts down to last section
Face, completes the layered manufacturing of target part, that is, complete the fused deposition 3D printing manufacture of target part.
Above-mentioned specific embodiment is the preferred embodiments of the present invention, can not limit the invention, other
Change or other equivalent substitute mode that what is made without departing from technical scheme, are included in the protection of the present invention
Within the scope of.
Claims (11)
1. a kind of fused deposition 3D printer, including housing and elevating mechanism, described elevating mechanism is installed in housing, its feature
It is：Also include compound extruded mechanism, described compound extruded mechanism includes machine barrel, screw rod and long fibre delivery pipe, described machine barrel
Side wall be provided with the feed pipe that connects of material chamber with machine barrel, described screw rod is rotatably installed on material intracavity, and described screw rod sets
There is installation passage, described installation passage connects the top and bottom of screw rod；Described long fibre delivery pipe is inserted in installation passage,
Described long fibre delivery pipe is provided with the transfer passage for conveying continuous fiber；Described transfer passage, installation passage and material chamber
It is sequentially communicated.
2. fused deposition 3D printer according to claim 1 it is characterised in that：Described compound extruded mechanism also includes
One support, second support and long fibre conveying roller group, described first support and second support are installed on elevating mechanism from top to bottom,
Described long fibre conveying roller group is installed on first support, and the upper end of described machine barrel is installed on second support, described long fibre conveying
First support is fixed in the upper end of pipe, and described long fibre delivery pipe is located at the lower section that long fibre conveys roller group, described long fibre
Delivery pipe is connected with long fibre conveying roller group.
3. fused deposition 3D printer according to claim 2 it is characterised in that：Long fibre conveying roller group includes the first electricity
Machine, drive roll, driven voller, driving shaft and driven shaft, described first motor is installed on the side of first support, described driving shaft and
Driven shaft is parallelly mounted in first support, and described driving shaft and the first motor connection, and described drive roll and driven voller are respectively
It is installed on driving shaft and driven shaft, and described drive roll and driven voller are oppositely arranged.
4. fused deposition 3D printer according to claim 3 it is characterised in that：The conveying of described long fibre delivery pipe is led to
The entrance in road is located at the underface between drive roll and driven voller.
5. fused deposition 3D printer according to claim 1 it is characterised in that：The centrage in described material chamber, screw rod
The centrage of centrage and long fibre delivery pipe is on the same line.
6. fused deposition 3D printer according to claim 1 it is characterised in that：The lower section of described compound extruded mechanism sets
There are work platformses and the slide rail of supporting work platformses.
7. fused deposition 3D printer according to claim 1 it is characterised in that：Described compound extruded mechanism also includes fibre
Dimension cutting knife, nozzle and cylinder, described nozzle is installed on the discharging opening of machine barrel, and described nozzle is provided with the excision mated with fibre cutter
Passage, described excision passage is connected with the endoporus of nozzle, and described cylinder is fixed on the lower surface of machine barrel, and described fibre cutter is installed
In the expansion link of cylinder, and described fibre cutter insertion excision passage.
8. fused deposition 3D printer according to claim 1 it is characterised in that：The upper end of described feed pipe is provided with charging
Bucket, the corner dimension between the centrage of described feed pipe and the centrage of machine barrel is 30 °～90 °；The lower end of described machine barrel sets
There is at least 1 additional gas ket, described heating collar is located at the lower section of feed pipe.
9. fused deposition 3D printer according to claim 2 it is characterised in that：The side of described second support is provided with
Two motors, described second motor is connected with screw rod by drive mechanism, and this drive mechanism is Worm and worm-wheel gearing.
10. fused deposition 3D printer according to claim 1 it is characterised in that：Described elevating mechanism include crane,
Screw mandrel and 2 guide rods, 2 described guide rods are individually fixed in the two ends in housing, and the two ends of described crane are equipped with by guide rod
The through hole passing through, described screw mandrel is installed in housing, and described crane is socketed on screw mandrel.
The Method of printing of the 11. fused deposition 3D printers according to any one of claim 1～10 it is characterised in that
Comprise the following steps：
(1) set up the threedimensional model of target part on computers, then with software, threedimensional model carried out hierarchy slicing process,
Obtain the panel data information of each processing aspect, and be converted into motion track instruction and the elevating mechanism drive of work platformses
The instruction that compound extruded mechanism moves up and down；
(2) when starting working, add printed material to loading hopper, printed material enters the material chamber of machine barrel by feed pipe, print
Material becomes molten condition in material intracavity, and the printed material of these molten conditions is pushed to nozzle by screw rod rotary squeezing；With this
Meanwhile, continuous fiber conveys, from long fibre, the transfer passage that roller group enters long fibre delivery pipe, and these continuous fibers pass through
After transfer passage, the printed material that is melted to the outlet of nozzle of movement impregnates and wraps up, continuous fiber and bag
Wrap up in its printed material and be extruded to the corresponding position of work platformses from the outlet of nozzle simultaneously and carry out fused deposition, fibre cutter
Then according to instruction, complete continuous fiber to be cut off after print track each time, thus completing to print.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410469682.0A CN104260349B (en) | 2014-09-15 | 2014-09-15 | Fusion-deposition 3D printer and printing method thereof |
| PCT/CN2015/089064 WO2016041449A1 (en) | 2014-09-15 | 2015-09-07 | Fused deposition 3d printer and printing method therefor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410469682.0A CN104260349B (en) | 2014-09-15 | 2014-09-15 | Fusion-deposition 3D printer and printing method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN104260349A CN104260349A (en) | 2015-01-07 |
| CN104260349B true CN104260349B (en) | 2017-02-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410469682.0A Active CN104260349B (en) | 2014-09-15 | 2014-09-15 | Fusion-deposition 3D printer and printing method thereof |
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| CN (1) | CN104260349B (en) |
| WO (1) | WO2016041449A1 (en) |
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