CN109203471A - A kind of multi-head printer structure of 3D printer - Google Patents
A kind of multi-head printer structure of 3D printer Download PDFInfo
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- CN109203471A CN109203471A CN201811262568.5A CN201811262568A CN109203471A CN 109203471 A CN109203471 A CN 109203471A CN 201811262568 A CN201811262568 A CN 201811262568A CN 109203471 A CN109203471 A CN 109203471A
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- bore
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- 238000007639 printing Methods 0.000 claims abstract description 53
- 238000001125 extrusion Methods 0.000 claims abstract description 9
- 238000010438 heat treatment Methods 0.000 claims description 43
- 239000000463 material Substances 0.000 claims description 24
- 238000001816 cooling Methods 0.000 claims description 23
- 239000004429 Calibre Substances 0.000 claims description 5
- 239000000945 filler Substances 0.000 claims description 4
- 229910003460 diamond Inorganic materials 0.000 claims description 3
- 239000010432 diamond Substances 0.000 claims description 3
- 230000008450 motivation Effects 0.000 claims description 3
- 239000007921 spray Substances 0.000 claims description 2
- 210000000867 larynx Anatomy 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 10
- 238000010586 diagram Methods 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 5
- 230000017525 heat dissipation Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000010146 3D printing Methods 0.000 description 1
- TVEXGJYMHHTVKP-UHFFFAOYSA-N 6-oxabicyclo[3.2.1]oct-3-en-7-one Chemical compound C1C2C(=O)OC1C=CC2 TVEXGJYMHHTVKP-UHFFFAOYSA-N 0.000 description 1
- 239000004831 Hot glue Substances 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 238000010009 beating Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 244000309464 bull Species 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000001186 cumulative effect Effects 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012946 outsourcing Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 239000012188 paraffin wax Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
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
- B29C64/20—Apparatus for additive manufacturing; Details thereof or accessories therefor
-
- 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
-
- 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
- B29C64/20—Apparatus for additive manufacturing; Details thereof or accessories therefor
- B29C64/205—Means for applying layers
- B29C64/209—Heads; Nozzles
-
- 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
- B29C64/20—Apparatus for additive manufacturing; Details thereof or accessories therefor
- B29C64/295—Heating elements
-
- 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
- B29C64/386—Data acquisition or data processing for additive manufacturing
- B29C64/393—Data acquisition or data processing for additive manufacturing for controlling or regulating additive manufacturing processes
-
- 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
- B33Y30/00—Apparatus for additive manufacturing; Details thereof or accessories therefor
-
- 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
- B33Y50/00—Data acquisition or data processing for additive manufacturing
- B33Y50/02—Data acquisition or data processing for additive manufacturing for controlling or regulating additive manufacturing processes
Landscapes
- 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 invention discloses a kind of multi-head printer structure of 3D printer, the fixation sliding block connecting including the motion profile with 3D printer and the temperature control print head being arranged on fixed sliding block, the temperature control print head includes controller and print head connected to the controller.The present invention print head different using three bores, it is not possible to improve the printing effect of printer, and print deformation can be prevented.The profile for squeezing out the lesser printhead prints object of bore is used when printing, guarantee that the profile of printing objects is fine and smooth, contoured interior filling, which then uses, squeezes out the slightly larger printhead prints of bore, to improve print speed, the support of profile exterior is then using the extrusion biggish printhead prints of bore, print speed not only can be improved, and the profile of printing objects can be supported, it prevents from deforming, greatly promote printing effect, the printing precision for not influencing object simultaneously, it is more obvious particularly with printing large-sized object and tilting body, effect.
Description
Technical field
The present invention relates to 3D printing field more particularly to a kind of multi-head printer structures of 3D printer.
Background technique
3D printer is also known as three-dimensional printer, i.e. a kind of machine of rapid prototyping technology, it is a kind of digital model file
Based on, with adhesive materials such as powdery metal or plastics, constructs the technology of object by layer-by-layer printing, be
A kind of cumulative manufacturing technology is made by printing a layer of adhesive material three-dimensional object, the basic principle is that passing through handle
Data and raw material are put into 3D printer, the product that machine from level to level can print product, and print according to program, and
It can use immediately.3D printer is often used for modeling in fields such as mold manufacture, industrial designs in the past, now just gradually uses
In the direct manufacture of some products, it can be used for jewelry, footwear, industrial design, building, engineering and construction (AEC), automobile, aviation
Space flight, dentistry and medical industries, education, GIS-Geographic Information System, civil engineering and many other fields.
Due to the speed of current 3D printer be not also quickly, when printing biggish object using 3D printer,
Generally require the time of several hours or even more than ten hour.In the condition of the filling of printing larger object and guarantee large scale
Under, this time may also want longer.In addition, we also found the serious problem of a comparison when printing, that is,
The object of printing is easily deformed, and can not be used.It would therefore be desirable to be improved to this.
Summary of the invention
It is an object of the invention to overcome problem above of the existing technology, a kind of bull printing of 3D printer is provided
Mechanism, the present invention print head different using three bores, it is not possible to improve the printing effect of printer, and can prevent from beating
Print deformation.Using the profile for squeezing out the lesser printhead prints object of bore when printing, guarantee the profile essence of printing objects
Thin smooth, contoured interior filling is then using the slightly larger printhead prints of bore are squeezed out, to improve print speed, the branch of profile exterior
Then using the biggish printhead prints of bore are squeezed out, print speed not only can be improved, but also can support printing objects in support
Profile prevents from deforming, and greatly promotes printing effect, while not influencing the printing precision of object, particularly with printing large-sized object
And tilting body, effect are more obvious.
To realize above-mentioned technical purpose and the technique effect, the invention is realized by the following technical scheme:
A kind of multi-head printer structure of 3D printer, the fixation sliding block being connect including the motion profile with 3D printer and setting
Temperature control print head on fixed sliding block, the temperature control print head includes controller and print head connected to the controller, institute
Stating print head includes the first print head, the second print head and third print head being disposed side by side on fixed sliding block；Described first
Print head, the second print head and third print head are each provided with the heating coil and temperature sensor of connection controller；Described
One print head includes first for connecting the first heat block of heating coil and temperature sensor and being arranged on the first heat block
Nozzle and the first trunnion；Second print head includes the second heat block and the setting for connecting heating coil and temperature sensor
Second nozzle and aux. venturi on the second heat block；The third print head includes connection heating coil and temperature sensor
Third heat block and the third nozzle and third trunnion that are arranged on third heat block；The bore of the third nozzle is greater than
The bore of second nozzle, the bore of the second nozzle are greater than the bore of first jet.It adopts this technical solution, the first print head
Profile for fine print head, for each layer cross section of printing objects；Second print head is filling print head, for quick
Print the section in each layer of profile of filler body；The third print head is printhead support, is used for flying print supporter
The profile of each layer cross section of body.
Preferably, the extrusion bore of the first jet is set as 0.2-0.6mm；The extrusion bore of the second nozzle
For 1-2mm, the extrusion bore of the third nozzle is 2-5mm.It adopts this technical solution, helps to improve print speed, reduce
Print time.
Preferably, the bore of the first jet is provided in round, bore is arranged in 0.4mm；The second nozzle
Bore be provided in round or rectangular, lowest calibre is arranged in 1.2mm；The bore of the third nozzle is provided in round or side
Shape or diamond shape, lowest calibre are arranged in 2mm.It adopts this technical solution, helps to improve print speed, reduce the print time.
Preferably, first heat block, the second heat block and third add heat block be each provided with nozzle mounting hole and
Trunnion mounting hole, the trunnion mounting hole are connect with nozzle mounting hole；The heating coil is set as the heating coil of annular, described
Annular-heating circle is set to the surrounding of nozzle mounting hole.It adopts this technical solution, annular-heating circle not only facilitates adding for nozzle
Heat, and homogeneous heating, speed are fast, save the time.
Preferably, first trunnion, aux. venturi and three-ventury side are connect with fixed sliding block, the other side point
Not Tong Guo the first heat block, the second heat block and third heat block connect with first jet, second nozzle and third nozzle.
Preferably, being each provided with radiating seat, the heat dissipation on the outside of first trunnion, aux. venturi and three-ventury
Several cooling fins are provided on seat, several cooling fins are connect with radiator, and the radiator is connect with controller；It is described
The thickness of cooling fin is set as being connect to thin, thin side with radiator by thickness.Adopt this technical solution, using radiator and
Cooling fin cools down to trunnion, and reduce trunnion causes internal printing consumables to melt in advance because of high temperature；Wherein, cooling fin and heat dissipation
Gap between piece is gradually reduced, and the wind that radiator is blown is blown into the surface of cooling fin by gap, to have
Help fast cooling.
Preferably, being respectively arranged with the first print head of connection, the second print head and third printing on the fixed sliding block
The feeding mechanism of head, the feeding mechanism include that the driven wheel of feed well side is arranged in and is arranged in the feed well other side
Driving wheel, the connection of the driving wheel and driving motor, the driving motor are connect with controller.It adopts this technical solution, it will
Printing consumables is inserted between driven wheel and driving wheel from feed well, is then inserted into trunnion；In actual use, by
Controller controls the revolving speed of each driving motor, and the driving wheel of connection is driven when driving motor rotates, makes driving wheel and driven wheel
Between consumptive material moved into trunnion；Wherein, it is provided with the locating slot for connecting consumptive material on driving wheel and driven wheel, is set in locating slot
It is equipped with the rubber ring of connection consumptive material.
Preferably, the controller includes control circuit board and the microprocessor that is arranged in control circuit board, institute
Microprocessor is stated to connect by control circuit board with power supply, heating coil, temperature sensor, radiator and feeding mechanism.Using
This technical solution, temperature sensor are used to the temperature of each print head being sent to controller in real time；Heating coil is used for each
Consumptive material in a print head is heated；Radiator is for radiating to trunnion；Controller is for receiving each print head
Temperature signal, and received temperature signal is compared with the temperature signal of inner setting, when one of print head
When temperature signal is higher than the temperature signal of internal setting, control the heating coil on the high print head of its strength signal electric current or
The temperature of its print head, drops in power-off；By the consumptive material model and state modulator that set in controller, its each beats feeding mechanism
Print the charging rate of head.
Preferably, the microprocessor is provided with control system, the control system is for receiving the first print head, the
The temperature signal of two print heads and the temperature sensor on third print head, and by the temperature of received temperature signal and inner setting
Degree signal is compared, and when the temperature signal on one of print head is more than the temperature signal of inner setting, is by control
The electric current that system controls the heating coil on its print head reduces or power-off, reduces the heating deblocking temperature of its print head.
Preferably, the 3D printer includes rack and the print platform being arranged on the rack, feeder and three
Shaft movement mechanism；The three-axis moving mechanism include be connected and fixed sliding block X-axis movement mechanism and Y-axis movement mechanism and with beat
Print the Z axis movement mechanism of platform connection.It adopts this technical solution, Z axis movement mechanism driving print platform moves up and down；X-axis fortune
Motivation structure and Y-axis movement mechanism drive fixed sliding block all around to move.
The beneficial effects of the present invention are: the print head that the present invention is different using three bores, it is not possible to improve printer
Printing effect, and print deformation can be prevented.The wheel for squeezing out the lesser printhead prints object of bore is used when printing
Exterior feature guarantees that the profile of printing objects is fine and smooth, and contoured interior filling is then using the slightly larger printhead prints of bore are squeezed out, to mention
Then using the biggish printhead prints of bore are squeezed out, print speed not only can be improved in high print speed, the support of profile exterior,
And the profile of printing objects can be supported, it prevents from deforming, greatly promotes printing effect, while not influencing the printing essence of object
Degree, it is more obvious particularly with printing large-sized object and tilting body, effect.
The above description is only an overview of the technical scheme of the present invention, in order to better understand the technical means of the present invention,
And can be implemented in accordance with the contents of the specification, with presently preferred embodiments of the present invention and attached drawing is cooperated to be described in detail below.This hair
Bright specific embodiment is shown in detail by following embodiment and its attached drawing.
Detailed description of the invention
The drawings described herein are used to provide a further understanding of the present invention, constitutes part of this application, this hair
Bright illustrative embodiments and their description are used to explain the present invention, and are not constituted improper limitations of the present invention.In the accompanying drawings:
Fig. 1 is 3D printer structural schematic diagram of the present invention；
Fig. 2 is print head structure schematic diagram of the present invention；
Fig. 3 is print head side of the present invention schematic diagram；
Fig. 4 is circuit connection diagram of the present invention；
Fig. 5 is printing objects structural schematic diagram one of the present invention；
Fig. 6 is printing objects structural schematic diagram two of the present invention.
Figure label explanation: 1,3D printer, 2, fixed sliding block, the 3, first print head, 4 second print heads, 5, third beats
Print head, 6, heating coil, 7, temperature sensor, 8, radiating seat, 9, radiator, 10, feeding mechanism, 11, consumptive material, 12, profile,
13, filler material, 14, supporting material, 101, feed well, 102, driven wheel, 103, driving wheel, 201, temperature control print head, 301, first
Heat block, 302, first jet, the 303, first trunnion, the 401, second heat block, 402, second nozzle, 403, aux. venturi,
501, third heat block, 502, third nozzle, 503, third trunnion, 111, rack, 112, print platform, 113, feeder,
114, three-axis moving mechanism, 1141, X-axis movement mechanism, 1142, Y-axis movement mechanism, 1143, Z axis movement mechanism.
Specific embodiment
The invention will be further described with reference to the accompanying drawing:
Referring to figs. 1 to shown in Fig. 6, a kind of multi-head printer structure of 3D printer, including being connect with the motion profile of 3D printer 1
Fixation sliding block 2 and the temperature control print head 201 that is arranged on fixed sliding block 2, the temperature control print head 201 include controller with
And print head connected to the controller, the print head include the first print head 3, second being disposed side by side on fixed sliding block 2
Print head 4 and third print head 5；First print head 3, the second print head 4 and third print head 5 are each provided with connection control
The heating coil 6 and temperature sensor 7 of device；First print head 3 includes the of connection heating coil 6 and temperature sensor 7
One heat block 301 and the first jet 302 being arranged on the first heat block 301 and the first trunnion 303；Second print head
4 include second for connecting the second heat block 401 of heating coil 6 and temperature sensor 7 and being arranged on the second heat block 401
Nozzle 402 and aux. venturi 403；The third print head 5 includes the third heating of connection heating coil 6 and temperature sensor 7
Block 501 and the third nozzle 502 and third trunnion 503 being arranged on third heat block 501；The mouth of the third nozzle 502
Diameter is greater than the bore of second nozzle 402, and the bore of the second nozzle 402 is greater than the bore of first jet 302.Using this technology
Scheme, the first print head 3 are fine print head, the profile (including top layer and bottom) for each layer cross section of printing objects；Institute
The second print head 4 is stated for filling print head, for the section in each layer of profile of printing speed filler body；The third printing
First 5 be printhead support, the profile for each layer cross section of flying print supporting object.Wherein, the center of first jet 302 away from
Center from second nozzle 402 is set as 15mm, and the center of the centre distance third nozzle 502 of second nozzle 402 is set as
15mm.The distance of compensation can be set when the use of first jet 302, second nozzle 402 and third nozzle 502 by computer software.
Preferably, the extrusion bore of the first jet 302 is set as 0.2-0.6mm；The second nozzle 402 squeezes
Bore is 1-2mm out, and the extrusion bore of the third nozzle 502 is 2-5mm.It adopts this technical solution, helps to improve printing
Speed reduces the print time.Wherein, first jet 302, second nozzle 402 and third nozzle 502 also can according to need selection
It is often assembled and is used with outsourcing piece in the suitable market of bore.
Preferably, the bore of the first jet 302 is provided in round, bore is arranged in 0.4mm；Second spray
The bore of mouth 402 is provided in round or rectangular, and lowest calibre is arranged in 1.2mm；The bore of the third nozzle 502 is set as
Round or rectangular or diamond shape, lowest calibre are arranged in 2mm.It adopts this technical solution, helps to improve print speed, reduction is beaten
Print the time.
Preferably, first heat block 301, the second heat block 401 and third add heat block 501 to be each provided with nozzle
Mounting hole and trunnion mounting hole, the trunnion mounting hole are connect with nozzle mounting hole；The heating coil 6 is set as adding for annular
Gas ket, the annular-heating circle are set to the surrounding of nozzle mounting hole.It adopts this technical solution, annular-heating circle 6 not only helps
In the heating of nozzle, and homogeneous heating, speed are fast, save the time.
Preferably, the side of first trunnion 303, aux. venturi 403 and third trunnion 503 and fixed sliding block 2 connect
It connects, the other side passes through the first heat block 301, the second heat block 401 and third heat block 501 and first jet 302, second respectively
Nozzle 402 and third nozzle 502 connect.
Preferably, the outside of first trunnion 303, aux. venturi 403 and third trunnion 503 is each provided with radiating seat
8, several cooling fins 801 are provided on the radiating seat 8, and several cooling fins 801 are connect with radiator 9, the heat dissipation
Device 9 is connect with controller；The thickness of the cooling fin 801 is set as being connect to thin, thin side with radiator 9 by thickness.It adopts
With this technical solution, cooled down using radiator 9 and cooling fin 801 to trunnion, reducing trunnion leads to internal printing because of high temperature
Consumptive material 11 melts in advance；Wherein, the gap between cooling fin 801 and cooling fin 801 is gradually reduced, so that radiator 9 was blown
Wind can be blown into the surface of cooling fin 801 by gap, to facilitate fast cooling.
It is beaten preferably, being respectively arranged with the first print head 3 of connection, the second print head 4 and third on the fixed sliding block 2
The feeding mechanism 10 of head 5 is printed, the feeding mechanism 10 includes that the driven wheel 102 that 101 side of feed well is arranged in and setting exist
The driving wheel 103 of 101 other side of feed well, the connection of the driving wheel 203 and driving motor, the driving motor and controller
Connection.It adopts this technical solution, printing consumables 11 is inserted between driven wheel 102 and driving wheel 103 from feed well 101,
Then it is inserted into trunnion；In actual use, the revolving speed of each driving motor is controlled by controller, when driving motor rotates
The driving wheel 103 for driving connection, moves the consumptive material 11 between driving wheel 103 and driven wheel 102 into trunnion；Wherein, it drives
It is provided with the locating slot of connection consumptive material 11 on wheel 103 and driven wheel 102, the rubber ring of connection consumptive material is provided in locating slot.
Preferably, the controller includes control circuit board and the microprocessor that is arranged in control circuit board, institute
Microprocessor is stated to connect by control circuit board with power supply, heating coil 6, temperature sensor 7, radiator 9 and feeding mechanism 10.
It adopts this technical solution, temperature sensor 7 is used to the temperature of each print head being sent to controller in real time；Heating coil is used for
Consumptive material 11 in each print head is heated；Radiator 9 is for radiating to trunnion；Controller is for receiving each beat
The temperature signal on head is printed, and received temperature signal is compared with the temperature signal of inner setting, when one of them is beaten
When printing the temperature signal of head higher than the internal temperature signal being arranged, the heating coil 6 on the high print head of its strength signal is controlled
Electric current or power-off, the temperature of its print head drops；Feeding mechanism 10 is by the consumptive material model and parameter control that set in controller
Make the charging rate of its each print head.
Preferably, the microprocessor is provided with control system, the control system for receive the first print head 3,
The temperature signal of temperature sensor 7 on second print head 4 and third print head 5, and received temperature signal is set with inside
Fixed temperature signal is compared, when the temperature signal on one of print head is more than the temperature signal of inner setting, by
The electric current that control system controls the heating coil 6 on its print head reduces or power-off, reduces the heating deblocking temperature of its print head.
Preferably, the 3D printer 1 include rack 111 and be arranged in rack 111 print platform 112, to
Expect mechanism 113 and three-axis moving mechanism 114；The three-axis moving mechanism 114 includes the X-axis movement mechanism for being connected and fixed sliding block 2
1141 and Y-axis movement mechanism 1142 and the Z axis movement mechanism 1143 being connect with print platform 112.It adopts this technical solution, Z
Shaft movement mechanism 1143 drives print platform to move up and down；X-axis movement mechanism 1144 and the fixed cunning of the driving of Y-axis movement mechanism 1142
Block 2 all around moves.
3D printer can be programmed realization automation manipulation by existing control chip and computer software when printing,
It can be Gcode code by stl file format conversion using computer software, for the profile of curve, software is to be divided into very
Multiple segments, according to layer height, wall thickness, speed, the slicing parameters such as temperature, for the code packet of generation corresponding to each segment
It includes: the amount of movement of X-axis, the amount of movement of Y-axis, extruder motor moving distance, velocity and acceleration etc..According to the section of printing objects
Shape marks off the shape of profile, and a filling region is marked off in profile, marks off a supporting zone in profile exterior；
Profile is printed by the first print head, and filling region is printed by the second print head, and supporting zone is beaten by third print head
Print.
Specific embodiment:
In actual use, the profile of the first printhead prints object layer cross section, then using the filling printing of the second print head
Section in the object profile is beaten using the supporting section outside this layer of profile of third printhead prints when completing the layer cross section
When print, restart next layer of printing, printing of the cycle operation until completing whole object.In addition, third print head uses
The lower support consumptive material of molten point, such as；Paraffin or hot melt adhesive etc. can facilitate taking-up after the completion of printing；Second print head is adopted
With the relatively inexpensive packing material of material, help to save cost.
The above description is merely a specific embodiment, but scope of protection of the present invention is not limited thereto, any
Those familiar with the art in the technical scope disclosed by the present invention, can easily think of the change or the replacement, and should all contain
Lid is within protection scope of the present invention.Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. the multi-head printer structure of a kind of 3D printer, including the fixation sliding block (2) being connect with the motion profile of 3D printer (1)
And temperature control print head (201) of the setting on fixed sliding block (2), it is characterised in that: the temperature control print head (201) includes control
Device processed and print head connected to the controller, the print head include the first printing being disposed side by side on fixed sliding block (2)
Head (3), the second print head (4) and third print head (5)；First print head (3), the second print head (4) and third printing
Head (5) is each provided with the heating coil (6) and temperature sensor (7) of connection controller；First print head (3) includes connection
The first heat block (301) of heating coil (6) and temperature sensor (7) and be arranged on the first heat block (301) first
Nozzle (302) and the first trunnion (303)；Second print head (4) includes connection heating coil (6) and temperature sensor (7)
The second heat block (401) and second nozzle (402) and aux. venturi (403) on the second heat block (401) is set；Institute
Stating third print head (5) includes that the third heat block (501) for connecting heating coil (6) and temperature sensor (7) and setting exist
Third nozzle (502) and third trunnion (503) on third heat block (501)；The bore of the third nozzle (502) is greater than the
The bore of two nozzles (402), the bore of the second nozzle (402) are greater than the bore of first jet (302),
It adopts this technical solution, the first print head 3 is fine print head, the profile for each layer cross section of printing objects；It is described
Second print head 4 is filling print head, for the section in each layer of profile of printing speed filler body；The third print head
5 be printhead support, the profile for each layer cross section of flying print supporting object.
2. a kind of multi-head printer structure of 3D printer according to claim 1, it is characterised in that: the first jet
(302) extrusion bore is set as 0.2-0.6mm；The extrusion bore of the second nozzle (402) is 1-2mm, the third spray
The extrusion bore of mouth (502) is 2-5mm, is adopted this technical solution, and print speed is helped to improve, and reduces the print time.
3. a kind of multi-head printer structure of 3D printer according to claim 1, it is characterised in that: the first jet
(302) bore is provided in round, and bore is arranged in 0.4mm；The bore of the second nozzle (402) is provided in round or side
Shape, lowest calibre are arranged in 1.2mm；The bore of the third nozzle (502) is provided in round or rectangular or diamond shape, minimum
Bore is arranged in 2mm,
It adopts this technical solution, helps to improve print speed, reduce the print time.
4. a kind of multi-head printer structure of 3D printer according to claim 1, it is characterised in that: first heat block
(301), the second heat block (401) and third add heat block (501) to be each provided with nozzle mounting hole and trunnion mounting hole, the larynx
Pipe mounting hole is connect with nozzle mounting hole；The heating coil (6) is set as the heating coil of annular, the annular-heating circle setting
In the surrounding of nozzle mounting hole,
It adopts this technical solution, annular-heating circle 6 not only facilitates the heating of nozzle, and homogeneous heating, speed are fast, when saving
Between.
5. a kind of multi-head printer structure of 3D printer according to claim 1, it is characterised in that: first trunnion
(303), the side of aux. venturi (403) and third trunnion (503) is connect with fixed sliding block (2), and the other side passes through first respectively
Heat block (301), the second heat block (401) and third heat block (501) and first jet (302), second nozzle (402) and the
Three nozzles (502) connection.
6. a kind of multi-head printer structure of 3D printer according to claim 1, it is characterised in that: first trunnion
(303), it is each provided with radiating seat (8) on the outside of aux. venturi (403) and third trunnion (503), is arranged on the radiating seat (8)
There are several cooling fins (801), several cooling fins (801) connect with radiator (9), the radiator (9) and controller
Connection；The thickness of the cooling fin (801) is set as being connect to thin, thin side with radiator (9) by thickness,
It adopts this technical solution, is cooled down using radiator 9 and cooling fin 801 to trunnion, reducing trunnion because of high temperature leads to inside
Printing consumables 11 melt in advance；Wherein, the gap between cooling fin 801 and cooling fin 801 is gradually reduced, so that radiator 9
The wind blown can be blown into the surface of cooling fin 801 by gap, to facilitate fast cooling.
7. a kind of multi-head printer structure of 3D printer according to claim 1, it is characterised in that: the fixed sliding block
(2) feeding mechanism (10) of connection the first print head (3), the second print head (4) and third print head (5) is respectively arranged on,
The feeding mechanism (10) includes that setting is another in feed well (101) in the driven wheel (102) of feed well (101) side and setting
The driving wheel (103) of side, the connection of driving wheel (203) and driving motor, the driving motor are connect with controller,
It adopts this technical solution, printing consumables 11 is inserted between driven wheel 102 and driving wheel 103 from feed well 101, so
After be inserted into trunnion；In actual use, the revolving speed of each driving motor, band when driving motor rotates are controlled by controller
The driving wheel 103 of dynamic connection, moves the consumptive material 11 between driving wheel 103 and driven wheel 102 into trunnion；Wherein, driving wheel
103 and driven wheel 102 on be provided with the locating slot of connection consumptive material 11, the rubber ring of connection consumptive material is provided in locating slot.
8. a kind of multi-head printer structure of 3D printer according to claim 1, it is characterised in that: the controller includes
Control circuit board and the microprocessor being arranged in control circuit board, the microprocessor by control circuit board and power supply,
Heating coil (6), temperature sensor (7), radiator (9) and feeding mechanism (10) connection,
It adopts this technical solution, temperature sensor 7 is used to the temperature of each print head being sent to controller in real time；Heating coil
For being heated to the consumptive material 11 in each print head；Radiator 9 is for radiating to trunnion；Controller is each for receiving
Temperature signal on a print head, and received temperature signal is compared with the temperature signal of inner setting, when wherein one
When the temperature signal of a print head is higher than the temperature signal of internal setting, the heater wire on the high print head of its strength signal is controlled
The temperature of its print head, drops in the electric current of circle 6 or power-off；Feeding mechanism 10 is by the consumptive material model and parameter that set in controller
Control the charging rate of its each print head.
9. a kind of multi-head printer structure of 3D printer according to claim 8, it is characterised in that: the microprocessor is set
It is equipped with control system, the control system is for receiving the first print head (3), the second print head (4) and third print head (5)
Temperature sensor (7 temperature signal, and received temperature signal is compared with the temperature signal of inner setting, when it
In temperature signal on print head when being more than the temperature signal of inner setting, by control system control it is on its print head plus
The electric current of heat coil (6) reduces or power-off, reduces the heating deblocking temperature of its print head.
10. a kind of multi-head printer structure of 3D printer according to claim 1, it is characterised in that: the 3D printer
(1) print platform (112), feeder (113) and the three-axis moving for including rack (111) and being arranged on rack (111)
Mechanism (114)；The three-axis moving mechanism (114) includes the X-axis movement mechanism (1141) and Y-axis fortune for being connected and fixed sliding block (2)
Motivation structure (1142) and the Z axis movement mechanism (1143) being connect with print platform (112),
It adopts this technical solution, Z axis movement mechanism 1143 drives print platform to move up and down；X-axis movement mechanism 1144 and Y-axis fortune
Motivation structure 1142 drives fixed sliding block 2 all around to move.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811262568.5A CN109203471A (en) | 2018-10-27 | 2018-10-27 | A kind of multi-head printer structure of 3D printer |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811262568.5A CN109203471A (en) | 2018-10-27 | 2018-10-27 | A kind of multi-head printer structure of 3D printer |
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ID=64997318
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| CN110920065A (en) * | 2019-10-22 | 2020-03-27 | 北京机科国创轻量化科学研究院有限公司 | Spray head replaceable 3D printer head for quickly forming large-sized product |
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