CN106003708A - 3D printing experiment platform and control method thereof - Google Patents
3D printing experiment platform and control method thereof Download PDFInfo
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- CN106003708A CN106003708A CN201610291859.1A CN201610291859A CN106003708A CN 106003708 A CN106003708 A CN 106003708A CN 201610291859 A CN201610291859 A CN 201610291859A CN 106003708 A CN106003708 A CN 106003708A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/115—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces by spraying molten metal, i.e. spray sintering, spray casting
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- 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
- B33Y40/00—Auxiliary operations or equipment, e.g. for material handling
-
- 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
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
Abstract
The invention relates to a 3D printing experiment platform and a control method thereof. The defects in the prior art are overcome through the 3D printing experiment platform and the control method thereof. According to the technical scheme, the 3D printing experiment platform comprises a feeding mechanism, input equipment, a displayer, a storer, an upper computer, a printing control chip, a temperature monitoring sensor, a heating device and a jet quantity control valve. The upper computer is electrically connected with the input equipment, the displayer, the storer and the printing control chip. The printing control chip is electrically connected with a motor, the temperature monitoring sensor and the heating device. A 3D printing nozzle comprises a nozzle controller, a supplying mechanism, a wire fusing mechanism, a material wire feeding mechanism, a runner, a sizing device and a nozzle opening. The jet quantity control valve is installed on the nozzle opening. The input end of the supplying mechanism is connected with the feeding mechanism. The output end of the supplying mechanism is connected with the input end of the wire fusing mechanism. The output end of the wire fusing mechanism is connected with the input end of the material wire feeding mechanism. The output end of the material wire feeding mechanism is connected with the input end of the sizing device through the runner. The output end of the sizing device is connected with the nozzle opening.
Description
Technical field
The present invention relates to a kind of 3D printer, print laboratory table and control method thereof particularly to a kind of 3D.
Background technology
Along with the progress in epoch, our living standard day by day promotes, meanwhile, population also in growth drastically,
We need increasing article to meet material life condition.This just certainly will cause our requirement to article
Also can be more and more higher, exquisite in workmanship, unique and non-volume production article can be liked by numerous people.Nowadays, I
Have 3D and print the technology of this advanced person, we can print our institute various by 3D printer
That need, want.3D printing technique wide application, it may be used for medical industry, scientific research, product
Product model, architectural design, manufacturing industry and food etc., prospect is extensive.
3D printing technique, is a kind of based on mathematical model file, uses powdery metal or plastics
Etc. can jointing material, by the way of successively printing, carry out the technology of constructed object.3D printer then occurs in
The mid-90 in century, the rapid molding device of a kind of technology such as utilize photocuring and ply of paper folded.It is with general
Logical printer operation principle is essentially identical, and printer is built with liquid or powder etc. " printed material material ", with computer even
After connecing, control " printed material " to stack up from level to level by computer, finally the blueprint on computer is become
Become material object.Nowadays this technology is applied in multiple fields, people with it manufacture clothing, BUILDINGS MODELS,
Automobile, chocolate sweets etc..
Summary of the invention
The time-write interval that the present invention is primarily directed to existing for prior art is long, waits that cool time is long, beats simultaneously
Print precision needs the technical problem improved, it is provided that a kind of high-precision 3D that has controlling experiment use prints experiment
Platform and control method thereof.
The technical solution adopted for the present invention to solve the technical problems is: a kind of 3D printer, power supply power,
Motor, Y-axis is driven to drive motor, Z axis to drive motor and 3D including printer body, print platform, X-axis
Printing head, described print platform is arranged in described printer body by drive shaft, and 3D printing head leads to
Cross spray head drive shaft to be connected with print platform, printer body offers pan tank, described 3D printing head
Pan tank described in alignment, also include data server, feeding mechanism, input equipment, display, memorizer,
Host computer, print control chip, monitoring temperature sensor, heating apparatus and fuel injection quantity control valve, described host computer
Electrically connect with data server, input equipment, display, memorizer and print control chip respectively, described beat
Print control chip drives motor, Y-axis to drive motor, Z axis to drive motor, monitoring temperature sensing respectively with X-axis
Device and heating apparatus electrical connection, described 3D printing head include printhead controller, organization of supply, fuse mechanism,
Material silk feed mechanism, runner, sizing tool and spout, described fuel injection quantity control valve is arranged on spout, described supply
The input of mechanism is connected with feeding mechanism, the outfan of described organization of supply and the input of described fuse mechanism
Connecting, the outfan of described fuse mechanism is connected with the input of material silk feed mechanism, described material silk feed mechanism
Outfan be connected with the input of sizing tool by runner, the outfan of sizing tool is connected with described spout, institute
State fuel injection quantity control valve, organization of supply, fuse mechanism, material silk feed mechanism, sizing tool and spout all with described spray
Head controller electrically connects, and printhead controller electrically connects with described host computer, and described heating apparatus is disposed in charger
Between structure and described organization of supply.The present invention can be suitable for various printed material, particularly adapts to material filate formula
Printed material, can improve rapid melting material silk, and maintain it in suitable temperature, keeps the time of solidification
Controlled.
As preferably, a kind of 3D prints laboratory table, power supply power, including printer body, print platform,
X-axis drives motor, Y-axis to drive motor, Z axis to drive motor and 3D printing head, and described print platform leads to
Axle of overdriving is arranged in described printer body, and 3D printing head is by spray head drive shaft with print platform even
Connect, printer body offers pan tank, the pan tank described in described 3D printing head alignment, its feature
Be: also include feeding mechanism, input equipment, display, memorizer, host computer, print control chip,
Monitoring temperature sensor, heating apparatus and fuel injection quantity control valve, described host computer respectively with input equipment, display,
Memorizer and the electrical connection of print control chip, described print control chip drives motor, Y-axis to drive with X-axis respectively
Galvanic electricity machine, Z axis drive motor, monitoring temperature sensor and heating apparatus electrical connection, described 3D printing head
Including printhead controller, organization of supply, fuse mechanism, material silk feed mechanism, runner, sizing tool and spout,
Described fuel injection quantity control valve is arranged on spout, and the input of described organization of supply is connected with feeding mechanism, described confession
Answering the outfan of mechanism to be connected with the input of described fuse mechanism, the outfan of described fuse mechanism send with material silk
The input entering mechanism connects, and the outfan of described material silk feed mechanism is connected by the input of runner with sizing tool
Connecing, the outfan of sizing tool is connected with described spout, described fuel injection quantity control valve, organization of supply, fuse mechanism,
Material silk feed mechanism, sizing tool and spout all electrically connect with described printhead controller, printhead controller and described on
Position mechatronics, described heating apparatus is disposed between feeding mechanism and described organization of supply；
Be equipped in described air storage chamber one for filling out the filling chamber setting coolant, described filling chamber twist,
The most twist, described filling chamber is used for inside air storage chamber the internal cavity for air circulation of described air storage chamber
The cavity laminating of air circulation.
Several air jet systems and an air intake pump, described air jet system it is further fixed on described 3D printing head
Including jet fixed mount, air storage chamber, escape pipe and electromagnetic valve, described air storage chamber is disposed in by fixed mount is fixing
Around spout, described air storage chamber connects with described air inlet delivery side of pump, and described air intake pump prints control with described
Coremaking sheet electrically connects, and the input of described escape pipe is connected with described air storage chamber, and described escape pipe is equipped with electricity
Magnet valve, described electromagnetic valve electrically connects with described print control chip, and the outfan of described escape pipe is curved, institute
State inside the outfan of escape pipe and be positioned at the outside of spout.Once occur that material silk is extruded more or to close spout too late
Time situation, host computer calculates the direction of motion of next layer and the opening and closing situation of spout automatically, reduces error.
As preferably, described 3D prints laboratory table and also includes infrared scanner, and described noctovisor scan fills
Put and include scanning means movable stand, scanning means emitter, scanning means receptor and scanning means transducer,
Described scanning means movable stand is overall, and in n font, the top of described scanning means movable stand is fixed on nozzle,
The bottom of described scanning means movable stand is parallel with the bottom of described spout, of described scanning means movable stand
Bottom is connected with scanning means emitter, and another bottom of described scanning means movable stand receives with scanning means
Device connects, the scanning means receptor described in described scanning means emitter alignment, described scanning means receptor
Less than described spout bottom, the outfan of described scanning means receptor passes through scanning means transducer with described
Host computer electrically connects.
As preferably, described feeding mechanism includes that cylinder and vertical shaft, described cylinder are arranged on described vertical shaft,
Described 3D prints laboratory table printed material around being located at the surface of described cylinder, and described heating apparatus includes that heating is driven
Dynamic device, heating tube and support of heating, described heating tube is fixed on the upper of described printer body by support of heating
Surface, the entrance side of described heating tube is equipped with a monitoring temperature sensor, sets in the tube wall of described heating tube
If being equipped with carried interest heating wire, described heating wire is electrically connected with described print control chip by heater driver.
As preferably, described printer body is further opened with a locating slot, if offering at described locating slot
Dry proximity transducer, described nozzle is equipped with induced magnet, is fixed with an automatically controlled pressure in described locating slot
Trying hard to recommend bar, described electrohydraulic pressure control push rod electrically connects with described print control chip, the top of described electrohydraulic pressure control push rod
End is provided with the temperature sensor of a contact, the temperature sensor of described contact and print control chip electricity
Connect.Locating slot be provided for printing every time before carry out reorientating and drift correction, improve print precision.
As preferably, described X-axis drives the output shaft of motor, Y-axis to drive the output shaft of motor and Z axis to drive
All being equipped with position sensor on the output shaft of motor, described position sensor is all electric with described print control chip
Connect.
As preferably, described feeding mechanism includes backing material feeding mechanism, and described print platform is further fixed on
Backing material shower nozzle, described backing material shower nozzle is connected with backing material feeding mechanism, described backing material shower nozzle
Nozzle be also equipped with fuel injection quantity control valve, fuel injection quantity control valve electrically connects with described printhead controller.
As preferably, described locating slot is overall in cross.
As preferably, at least side cell wall of described locating slot is provided with one group of grating scale, described grating scale with
Described print control chip electrically connects.
The 3D of a kind of long-range control prints Control testing bench method, it is adaptable to the most long-range
The 3D controlled prints laboratory table, comprises the following steps:
Step one, host computer receives communicator signal and carries out authentication, downloads data server internal memory immediately and be provided with pre-
If 3D figure；
Step 2, host computer receives initial 3D figure by communicator；
Step 4, resolves initial 3D figure, is to meet 3D to print laboratory table by initial 3D graphics decomposition
The pie graph of sliced form,
Step 4, host computer utilizes locating slot to be simulated printing and gather 3D and prints the data that laboratory table is run, adopts
The data of collection include finished product print point target position information and finished product print point actual position information；
Step 5, is carried out the historical data gathered and structuring processes, according to the collection finished product print point set
Time series data (the C of actual position information1,C2,C3,…,Ct,Cn) set, wherein CtFor t time point
Finished product print point actual position information, CnFinished product print point actual position information for current point；
Step 6, selects historical data to use nothing supervision from bottom to top as sample by degree of depth autocoder model
Study, successively builds neuron, forms neutral net；The sample standard deviation of input is equipped with label, according to the most defeated
Go out the difference between the target with label and go to change the parameter of preceding layers, until convergence；
Finished product print point actual position information (C by input1,C2,C3,…,Ct,Cn) input to encoder, obtain one defeated
Go out coding (g1 (1),g2 (1),g3 (1),…gt (1),…,gn (1)), export a reconfiguration information by decoder, according to
The finished product print point actual position information contrast of output coding and reconfiguration information and input obtains reconstructed error, each
Layer is by adjusting the parameter of encoder so that reconstructed error is minimum, finally gives encoder and decoding
The Parameter space of device；Defeated as next layer of neutral net of input of each implicit unit in neutral net
Enter, and next layer is trained, by ground floor finished product print point actual position information (C1,C2,C3,…,Ct,Cn)
As the inlet flow data of the second layer, the same parameter adjusting encoder minimizes reconstructed error,
Output to second layer finished product print point actual position information encodes (g1 (2),g2 (2),g3 (2),…gt (2),…,gn (2))
And successively adjust；
Increase at the top of autocoder coding layer and support Vector classifier, then by the multilayer neural network of standard
Supervised training method training realize fine setting；
Step 7, in neutral net, the input of each implicit unit is as the input of next layer of neutral net, and to next
Layer is trained；
Step 8, is finely adjusted by the supervised training method of the multilayer neural network of standard；
Step 9, using the finished product print point actual position information obtained in real time as having exemplar and degree of depth automatic encoding
The short-term data of device Model forecast system prediction compares, if the result difference of comparison is big, just with there being label
Sample has the training of supervision to degree of depth autocoder model, adjusts the network parameter of encoder, until pre-
Survey result and finished product print point target position information difference falls till reasonable interval, export degree of depth autocoder
Training pattern；
Step 10, is predicted by degree of depth autocoder training pattern according to real-time finished product print point actual position information
3D prints error dot and the mode error of laboratory table, adjusts current 3D and prints the operation situation in laboratory table.
As preferably, in step 8, including following fine setting sub-step,
Fine setting sub-step one, the random finished product print point actual position information obtained, and be trained with BP algorithm,
Calculate the output of each layer；
Fine setting sub-step two, seeks the reconstructed error of each layer, and only needs according to error to adjust weights and biasing；
Whether fine setting sub-step three, according to performance index rating error in the range of specifying, if not then repeating step
Fine setting sub-step one, until the output of whole network meets the requirements；
Fine setting sub-step four, exports last degree of depth autocoder training pattern.
The substantial effect of the present invention is: in the present invention locating slot be provided for printing every time before carry out again fixed
Position and drift correction, improve and print precision.Meanwhile, once occur that spout is extruded or closed to material silk more not in time
Situation, host computer calculates the direction of motion of next layer and the opening and closing situation of spout automatically, reduces error.This
The bright various printed material, particularly adaptation of can being suitable for expects the printed material of filate formula, can improve rapid melting
Material silk, and maintain it in suitable temperature, the time keeping solidification is controlled.
Accompanying drawing explanation
Fig. 1 is a kind of structural representation of the present invention；
Fig. 2 is a kind of structural representation of locating slot in the present invention.
In figure: 1, data server, 2, host computer, 3, infrared scanner, 4, print control chip,
5, heater driver, 6, heating wire, 7,3D printing head, 8, fuel injection quantity control valve, 9, electrohydraulic pressure control pushes away
Bar, 10, grating scale, 11, monitoring temperature sensor, 12, temperature sensor, 23, electrohydraulic pressure control push rod,
24, locating slot.
Detailed description of the invention
Below by specific embodiment, and combine accompanying drawing, technical scheme is made the most specifically
Bright.
Embodiment:
A kind of 3D prints laboratory table (seeing accompanying drawing 1 and accompanying drawing 2), power supply power, and host computer 2 is with default
Have and be easy to observe, apply backing material or do not apply the data server 1 of 3D printed drawings of backing material to lead to
Letter connects, and drives motor, Y-axis to drive motor, Z axis to drive including printer body, print platform, X-axis
Motor and 3D printing head 7, described print platform is arranged in described printer body by drive shaft, 3D
Printing head is connected with print platform by spray head drive shaft, and printer body offers pan tank, described 3D
Printing head alignment described in pan tank, also include feeding mechanism, input equipment, display, memorizer, on
Position machine, print control chip 4, monitoring temperature sensor 11, heating apparatus and fuel injection quantity control valve 8, described on
Position machine electrically connects with input equipment, display, memorizer and print control chip respectively, described print control core
Sheet drives motor, Y-axis to drive motor, Z axis drive motor, monitoring temperature sensor and heat respectively with X-axis
Device electrically connects, and described 3D printing head includes that printhead controller, organization of supply, fuse mechanism, material silk send
Entering mechanism, runner, sizing tool and spout, described fuel injection quantity control valve is arranged on spout, described organization of supply
Input is connected with feeding mechanism, and the outfan of described organization of supply is connected with the input of described fuse mechanism,
The outfan of described fuse mechanism is connected with the input of material silk feed mechanism, the output of described material silk feed mechanism
End is connected with the input of sizing tool by runner, and the outfan of sizing tool is connected with described spout, described discharge rate
Control valve, organization of supply, fuse mechanism, material silk feed mechanism, sizing tool and spout all control with described shower nozzle
Device electrically connects, and printhead controller electrically connects with described host computer, and described heating apparatus is disposed in feeding mechanism and institute
State between organization of supply；
Be equipped in described air storage chamber one for filling out the filling chamber setting coolant, described filling chamber is twist, described
The most twist, described filling chamber is internal with air storage chamber for air for the internal cavity for air circulation of air storage chamber
The cavity laminating of circulation.
Being further fixed on several air jet systems and an air intake pump on described 3D printing head, described air jet system includes
Jet fixed mount, air storage chamber, escape pipe and electromagnetic valve, described air storage chamber is disposed in spout by fixed mount is fixing
Around, described air storage chamber connects with described air inlet delivery side of pump, described air intake pump and described print control core
Sheet electrically connects, and the input of described escape pipe is connected with described air storage chamber, and described escape pipe is equipped with electromagnetic valve,
Described electromagnetic valve electrically connects with described print control chip, and the outfan of described escape pipe is curved, described in give vent to anger
With the outside being positioned at spout inside the outfan of pipe.
Described 3D prints laboratory table and also includes that infrared scanner 3, described infrared scanner include scanning dress
Put movable stand, scanning means emitter, scanning means receptor and scanning means transducer, described scanning means
Movable stand is overall in n font, and the top of described scanning means movable stand is fixed on nozzle, described scanning means
The bottom of movable stand is parallel with the bottom of described spout, a bottom of described scanning means movable stand and scanning dress
Putting emitter to connect, another bottom of described scanning means movable stand is connected with scanning means receptor, described
Scanning means receptor described in scanning means emitter alignment, described scanning means receptor is less than described spray
Mouth bottom, the outfan of described scanning means receptor is electrically connected with described host computer by scanning means transducer
Connect.
Described feeding mechanism includes that cylinder and vertical shaft, described cylinder are arranged on described vertical shaft, and described 3D prints real
Testing platform printed material around being located at the surface of described cylinder, described heating apparatus includes heater driver 5, heating tube
With support of heating, described heating tube is fixed on the upper surface of described printer body by support of heating, described in add
The entrance side of temperature pipe is equipped with a monitoring temperature sensor, if being provided with carried interest electricity in the tube wall of described heating tube
Heated filament 6, described heating wire is electrically connected with described print control chip by heater driver.
It is further opened with a locating slot on described printer body, offers several at described locating slot close to sensing
Device, described nozzle is equipped with induced magnet, is fixed with an electrohydraulic pressure control push rod 9, institute in described locating slot
Stating electrohydraulic pressure control push rod to electrically connect with described print control chip, the top of described electrohydraulic pressure control push rod is provided with one
The temperature sensor 12 of individual contact, the temperature sensor of described contact electrically connects with print control chip.
Described X-axis drives the output shaft of motor, Y-axis to drive the output shaft of motor and Z axis to drive on the output shaft of motor
All being equipped with position sensor, described position sensor all electrically connects with described print control chip.
Described feeding mechanism includes backing material feeding mechanism, and described print platform is further fixed on backing material shower nozzle,
Described backing material shower nozzle is connected with backing material feeding mechanism, and the nozzle of described backing material shower nozzle is also provided with
Fuel injection quantity control valve, fuel injection quantity control valve is had to electrically connect with described printhead controller.
Described locating slot is overall in cross.
One group of grating scale 10, described grating scale and described print control it is provided with at least side cell wall of described locating slot
Chip electrically connects.
The 3D of a kind of long-range control prints Control testing bench method, it is adaptable to remotely control as claimed in claim 1
3D print laboratory table, comprise the following steps:
Step one, host computer receives communicator signal and carries out authentication, downloads data server internal memory immediately and be provided with pre-
If 3D figure；
Step 2, host computer receives initial 3D figure by communicator；
Step 4, resolves initial 3D figure, is to meet 3D to print laboratory table by initial 3D graphics decomposition
The pie graph of sliced form,
Step 4, host computer utilizes locating slot to be simulated printing and gather 3D and prints the data that laboratory table is run, adopts
The data of collection include finished product print point target position information and finished product print point actual position information；
Step 5, is carried out the historical data gathered and structuring processes, according to the collection finished product print point set
Time series data (the C of actual position information1,C2,C3,…,Ct,Cn) set, wherein CtFor t time point
Finished product print point actual position information, CnFinished product print point actual position information for current point；
Step 6, selects historical data to use nothing supervision from bottom to top as sample by degree of depth autocoder model
Study, successively builds neuron, forms neutral net；The sample standard deviation of input is equipped with label, according to the most defeated
Go out the difference between the target with label and go to change the parameter of preceding layers, until convergence；
Finished product print point actual position information (C by input1,C2,C3,…,Ct,Cn) input to encoder, obtain one defeated
Go out coding (g1 (1),g2 (1),g3 (1),…gt (1),…,gn (1)), export a reconfiguration information by decoder, according to
The finished product print point actual position information contrast of output coding and reconfiguration information and input obtains reconstructed error, each
Layer is by adjusting the parameter of encoder so that reconstructed error is minimum, finally gives encoder and decoding
The Parameter space of device；Defeated as next layer of neutral net of input of each implicit unit in neutral net
Enter, and next layer is trained, by ground floor finished product print point actual position information (C1,C2,C3,…,Ct,Cn)
As the inlet flow data of the second layer, the same parameter adjusting encoder minimizes reconstructed error,
Output to second layer finished product print point actual position information encodes (g1 (2),g2 (2),g3 (2),…gt (2),…,gn (2))
And successively adjust；
Increase at the top of autocoder coding layer and support Vector classifier, then by the multilayer neural network of standard
Supervised training method training realize fine setting；
Step 7, in neutral net, the input of each implicit unit is as the input of next layer of neutral net, and to next
Layer is trained；
Step 8, is finely adjusted by the supervised training method of the multilayer neural network of standard；
Step 9, using the finished product print point actual position information obtained in real time as having exemplar and degree of depth automatic encoding
The short-term data of device Model forecast system prediction compares, if the result difference of comparison is big, just with there being label
Sample has the training of supervision to degree of depth autocoder model, adjusts the network parameter of encoder, until pre-
Survey result and finished product print point target position information difference falls till reasonable interval, export degree of depth autocoder
Training pattern；
Step 10, is predicted by degree of depth autocoder training pattern according to real-time finished product print point actual position information
3D prints error dot and the mode error of laboratory table, adjusts current 3D and prints the operation situation in laboratory table.
In step 8, including following fine setting sub-step,
Fine setting sub-step one, the random finished product print point actual position information obtained, and be trained with BP algorithm,
Calculate the output of each layer；
Fine setting sub-step two, seeks the reconstructed error of each layer, and only needs according to error to adjust weights and biasing；
Whether fine setting sub-step three, according to performance index rating error in the range of specifying, if not then repeating step
Fine setting sub-step one, until the output of whole network meets the requirements；
Fine setting sub-step four, exports last degree of depth autocoder training pattern.
In the present invention locating slot be provided for printing every time before carry out reorientating and drift correction, improve print
Precision.Meanwhile, once occurring that spout situation not in time is extruded or closed to material silk more, host computer calculates automatically
The direction of motion of next layer and the opening and closing situation of spout, reduce error.The present invention can be suitable for various printed material,
Particularly adapt to the printed material of material filate formula, rapid melting material silk can be improved, and maintain it in suitably
Temperature, the time keeping solidification is controlled.
Embodiment described above is the one preferably scheme of the present invention, and the present invention not makees any form
On restriction, on the premise of without departing from the technical scheme described in claim, also have other variant and change
Type.
Claims (10)
1. 3D prints a laboratory table, power supply power, including printer body, print platform, X-axis
Driving motor, Y-axis to drive motor, Z axis to drive motor and 3D printing head, described print platform leads to
Axle of overdriving is arranged in described printer body, and 3D printing head is put down with printing by spray head drive shaft
Platform connects, and printer body offers pan tank, the pan tank described in described 3D printing head alignment,
It is characterized in that: also include data server, feeding mechanism, input equipment, display, memorizer,
Host computer, print control chip, monitoring temperature sensor, heating apparatus and fuel injection quantity control valve, described
Host computer is electric with data server, input equipment, display, memorizer and print control chip respectively
Connecting, described print control chip drives motor, Y-axis to drive motor, Z axis to drive respectively with X-axis
Motor, monitoring temperature sensor and heating apparatus electrical connection, described 3D printing head includes shower nozzle control
Device, organization of supply, fuse mechanism, material silk feed mechanism, runner, sizing tool and spout, described spray
Control valve is arranged on spout, and the input of described organization of supply is connected with feeding mechanism, described confession
Answer the outfan of mechanism to be connected with the input of described fuse mechanism, the outfan of described fuse mechanism with
The input of material silk feed mechanism connects, and the outfan of described material silk feed mechanism passes through runner and sizing
The input of device connects, and the outfan of sizing tool is connected with described spout, described fuel injection quantity control valve, confession
Answer mechanism, fuse mechanism, material silk feed mechanism, sizing tool and spout all electric with described printhead controller
Connect, printhead controller electrically connects with described host computer, described heating apparatus be disposed in feeding mechanism and
Between described organization of supply；
Be equipped in described air storage chamber one for filling out the filling chamber setting coolant, described filling chamber twist,
Described air storage chamber is internal is used for the cavity of air circulation the most twist, in described filling chamber and air storage chamber
Portion is for the cavity laminating of air circulation.
Several air jet systems and an air intake pump, described air jet system it is further fixed on described 3D printing head
Including jet fixed mount, air storage chamber, escape pipe and electromagnetic valve, described air storage chamber is fixed by fixed mount
Being disposed in around spout, described air storage chamber connects with described air inlet delivery side of pump, described air intake pump
Electrically connecting with described print control chip, the input of described escape pipe is connected with described air storage chamber, institute
Stating and be equipped with electromagnetic valve on escape pipe, described electromagnetic valve electrically connects with described print control chip, described
The outfan of escape pipe is curved, with the outside being positioned at spout inside the outfan of described escape pipe.
3D the most according to claim 1 prints laboratory table, it is characterised in that: described 3D prints experiment
Platform also includes that infrared scanner, described infrared scanner include scanning means movable stand, sweep
Imaging apparatus emitter, scanning means receptor and scanning means transducer, described scanning means movable stand
Overall in n font, the top of described scanning means movable stand is fixed on nozzle, described scanning means
The bottom of movable stand is parallel with the bottom of described spout, a bottom of described scanning means movable stand with
Scanning means emitter connects, and another bottom of described scanning means movable stand receives with scanning means
Device connects, the scanning means receptor described in described scanning means emitter alignment, described scanning means
Receptor is less than described spout bottom, and the outfan of described scanning means receptor passes through scanning means
Transducer electrically connects with described host computer.
3D the most according to claim 1 prints laboratory table, it is characterised in that: described feeding mechanism bag
Including cylinder and vertical shaft, described cylinder is arranged on described vertical shaft, and described 3D prints laboratory table and prints material
Expect that described heating apparatus includes heater driver, heating tube and heats around the surface being located at described cylinder
Support, described heating tube is fixed on the upper surface of described printer body by support of heating, described in add
The entrance side of temperature pipe is equipped with a monitoring temperature sensor, if being provided with in the tube wall of described heating tube
Carried interest heating wire, described heating wire is electrically connected with described print control chip by heater driver.
3D the most according to claim 1 prints laboratory table, it is characterised in that: described printer body
On be further opened with a locating slot, offer several proximity transducers, described spray at described locating slot
It is equipped with induced magnet at Kou, in described locating slot, is fixed with an electrohydraulic pressure control push rod, described automatically controlled
Pressure push-rod electrically connects with described print control chip, and the top of described electrohydraulic pressure control push rod is provided with one
The temperature sensor of individual contact, the temperature sensor of described contact electrically connects with print control chip.
3D the most according to claim 1 prints laboratory table, it is characterised in that: described X-axis drives electricity
The output shaft of machine, Y-axis drive the output shaft of motor and Z axis to drive and be all equipped on the output shaft of motor
Position sensor, described position sensor all electrically connects with described print control chip.
3D the most according to claim 1 prints laboratory table, it is characterised in that: described feeding mechanism bag
Include backing material feeding mechanism, described print platform is further fixed on backing material shower nozzle, described support
Material shower nozzle is connected with backing material feeding mechanism, and the nozzle of described backing material shower nozzle is also equipped with
Fuel injection quantity control valve, fuel injection quantity control valve electrically connects with described printhead controller.
3D the most according to claim 4 prints laboratory table, it is characterised in that: described locating slot is overall
In cross.
3D the most according to claim 7 prints laboratory table, it is characterised in that: described locating slot is extremely
Being provided with one group of grating scale on the cell wall of few side, described grating scale electrically connects with described print control chip.
9. the 3D of a long-range control prints Control testing bench method, it is adaptable to as claimed in claim 1
The 3D remotely controlled prints laboratory table, it is characterised in that: comprise the following steps:
Step one, host computer receives communicator signal and carries out authentication, downloads data server internal memory immediately
It is provided with default 3D figure；
Step 2, host computer receives initial 3D figure by communicator；
Step 4, resolves initial 3D figure, prints real by initial 3D graphics decomposition for meeting 3D
Test the pie graph of the sliced form of platform,
Step 4, host computer utilizes locating slot to be simulated printing and gather 3D and prints the number that laboratory table is run
According to, the data of collection include finished product print point target position information and finished product print point actual position information；
Step 5, is carried out the historical data gathered and structuring processes, according to the collection finished product set
Time series data (the C of print point actual position information1,C2,C3,…,Ct,Cn) set, wherein CtFor
The finished product print point actual position information of t time point, CnFinished product print point actual bit confidence for current point
Breath；
Step 6, selects historical data to be used from bottom to top by degree of depth autocoder model as sample
Unsupervised learning, successively builds neuron, forms neutral net；The sample standard deviation of input is equipped with label,
Go to change the parameter of preceding layers according to the difference between current output and the target with label, until receiving
Hold back；
Finished product print point actual position information (C by input1,C2,C3,…,Ct,Cn) input to encoder, obtain
One output coding (g1 (1),g2 (1),g3 (1),…gt (1),…,gn (1)), export a weight by decoder
Structure information, according to the finished product print point actual position information contrast of output coding and reconfiguration information and input
Obtaining reconstructed error, each layer is by adjusting the parameter of encoder so that reconstructed error is
Little, finally give the Parameter space of encoder；Each implicit unit in neutral net
Input as the input of next layer of neutral net, and next layer is trained, by ground floor finished product
Print point actual position information (C1,C2,C3,…,Ct,Cn) as the inlet flow data of the second layer, adjust equally
The parameter of whole encoder and decoder minimizes reconstructed error, obtains second layer finished product print point actual bit
Output coding (the g of confidence breath1 (2),g2 (2),g3 (2),…gt (2),…,gn (2)) and successively adjust；
Increase at the top of autocoder coding layer and support Vector classifier, then by the multilamellar god of standard
Supervised training method training realization fine setting through network；
Step 7, in neutral net, the input of each implicit unit is as the input of next layer of neutral net, and
Next layer is trained；
Step 8, is finely adjusted by the supervised training method of the multilayer neural network of standard；
Step 9, using the finished product print point actual position information obtained in real time as having exemplar and the degree of depth certainly
The short-term data of dynamic encoder model predictive system compares, if the result difference of comparison is big,
Just with there being exemplar to have the training of supervision to degree of depth autocoder model, adjust encoder
Network parameter, until predicting the outcome to fall at reasonable interval with finished product print point target position information difference be
Only, degree of depth autocoder training pattern is exported；
Step 10, trains mould according to real-time finished product print point actual position information by degree of depth autocoder
Type prediction 3D prints error dot and the mode error of laboratory table, adjusts current 3D and prints in laboratory table
Operation situation.
3D the most according to claim 9 prints laboratory table, it is characterised in that:
In step 8, including following fine setting sub-step,
Fine setting sub-step one, the random finished product print point actual position information obtained, and instruct with BP algorithm
Practice, calculate the output of each layer；
Fine setting sub-step two, seeks the reconstructed error of each layer, and only needs according to error to adjust weights and biasing；
Whether fine setting sub-step three, according to performance index rating error in the range of specifying, if not then weighing
Multiple step fine setting sub-step one, until the output of whole network meets the requirements；
Fine setting sub-step four, exports last degree of depth autocoder training pattern.
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Application publication date: 20161012 |