CN109877320A - The 3D printing system and method for a kind of more feed bins, pressure adjustable type - Google Patents
The 3D printing system and method for a kind of more feed bins, pressure adjustable type Download PDFInfo
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- CN109877320A CN109877320A CN201910195912.1A CN201910195912A CN109877320A CN 109877320 A CN109877320 A CN 109877320A CN 201910195912 A CN201910195912 A CN 201910195912A CN 109877320 A CN109877320 A CN 109877320A
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Abstract
The present invention discloses " 3D printing systems and process of a kind of more feed bins, pressure adjustable type ".The present invention is made of printing environment generating means, 3D printing device, and technical characteristic is: printing environment generating means are made of closed operating room, compressed pneumatic pump, vacuum pump, integrated temperature and pressure sensor, gas componant sampling Detection device, environmental system control unit.3D printing device is made of 3-D image generating device, three-dimensional motion workbench, more feed bin storings and laser sintered ejecting device, print job operator control panel.The operating environment of environmental system control unit construction 3D printing, print job operator control panel is according to designed components three-dimensional image, formulate 3D printing operation procedure, the various storings in more feed bins are automatically selected in operation, determine the pressure, temperature, the concentration of working gas of operation, the operation of startup environment system control unit, and print job is monitored in real time.The configuration of the present invention is simple is easy, makes more material members one-pass moldings, changes operating pressure, substantially increases the different performance of same material component.Waste liquid, exhaust gas, waste residue are not discharged in operation process, it is environmentally friendly.
Description
Technical field
The present invention relates to 3D printing manufacturing technology field, the pressure for referring specifically to the adjustable working gas of more feed bins carries out 3D and beats
Print operation, the system and method for Lai Jiagong metal, alloy or other materials (Al2O3, SiC, plastics etc.).
Background technique
3D printing is referred to as " engine of intelligence manufacture industry ", and 3D printing is the top to traditional manufacturing technology mode
It covers, decrement cooked mode is cut by material and switchs to material addition increment manufacture model.Current pure storehouse metal scorification 3D printing
Defect there are three types of carrying out under normal pressure force environment in air: 1. pure storehouse makes product members bill of materials one, can only once print
A kind of material members.2. it is microcosmic not to be able to satisfy component inside so that component inside microstructure is single for printing under normal pressure force environment
The demand of structure diversity (finer and close or more loose penetrating than conventional).3. printing is so that micro scorification molten metal in air
It drips in exposure air, oxygen, nitrogen, water vapour, the dust impurities in air can be adsorbed, participate in the micro- of metal in the high temperature environment
Smelting process, to change the element proportion of metal material, thus various performances after making molding component, such as rigidity, elasticity, tough
Property, corrosion resistance are affected.Similarly, printing other materials effect is the same.
It is therefore desirable to propose a kind of more magazine feeds and by what working gas applied shaping workpiece under certain pressure be
System and process, keep 3D printing technique more advanced, perfect.
Summary of the invention
For above-mentioned known technological deficiency, the present invention propose " a kind of more feed bins, pressure adjustable type 3D printing device and
Process ".
To achieve the above object, the present invention is made of printing environment generating means, 3D printing device, and technical characteristic is:
The printing environment generating means are by can the closed operating room of automatic opening-closing door, compressed pneumatic pump, vacuum pump, integrated temperature
And pressure sensor, gas componant sampling Detection device, environmental system control unit composition, closed operating room's intracavity bottom setting
There is the admission line connecting with the exhaust outlet of compressed pneumatic pump, closed operating room's inner cavity top is provided with exhaust pipe, exhaust pipe
It is connect respectively with exhaust valve and circulating valve, the outlet of exhaust valve connects the entrance of vacuum pump by pipeline.Circulating valve passes through pipeline
Successively it is connect with the air inlet of filter device, compressed pneumatic pump.Tonifying Qi is provided on the connecting pipe of filter device and compressed pneumatic pump
The entrance of pipeline and aeration valve, the aeration valve is connect with working gas source.The filter device by recyclegas flow to according to
Secondary be composed in series by dust filtering layer, Vapor adsorption layer, Oxygen Adsorption layer, nitrogen adsorption layer, hydrogen adsorption layer.
The 3D printing device is by 3-D image generating device, three-dimensional motion workbench, storing and laser sintered spray
Head device, print job operator control panel composition.Three-dimensional motion workbench, storing and laser sintered ejecting device are arranged above-mentioned closed
In operating room.3-D image generating device, print job operator control panel are arranged outside above-mentioned closed operating room.Storing and laser sintered
Ejecting device and three-dimensional motion workbench are given birth to by the cable of sealed processing with the 3-D image being placed in outside closed operating room
Forming apparatus, print job operator control panel, environmental system control unit are connected.
In the further storing and laser sintered ejecting device, storage bin is that garden is cylindrical, can be made in the column casing of garden
Be divided into n subregion of volume equity with isolation board, each subregion by respective baiting valve and laser sintered spray head connection,
N is positive integer.
The detector of the integrated temperature and pressure sensor is placed in above-mentioned closed operating room, and temperature and pressure pass
The display and communication connection of sensor are partially disposed in outside closed operating room.Gas componant sampling Detection device is set to closed operating room
Outside, gas componant sampling can sample in aperture on closed chamber wall, or sample in system exhaust pipeline, circulating line aperture.
The working gas source is the argon gas of d=99.999%.
Further, the working gas source is the carbon dioxide gas of d=99.999%.
Further, the working gas source is the nitrogen of d=99.999%, thus the nitrogen in above-mentioned filter device is inhaled
Attached layer should be withdrawn from, and Vapor adsorption layer or Oxygen Adsorption layer are also replaced by.
The automatic opening-closing of the environmental system control unit and seal operation room door, gas componant sampling Detection fill
It sets, pressure and temperature sensor, exhaust valve, vacuum pump, circulating valve, aeration valve, compressed pneumatic pump pass through communication cable or channel radio
News channel is connected as intelligent automatic-control system, and passes through wireless communication channel with 3-D image generating device, print job operator control panel
Or communication cable connects and information sharing.
The environmental system control unit is PLC system or DCS system.3-D image generating device has control concurrently simultaneously
The function of unit and print job operator control panel host computer.
Further, the 3D printing process of a kind of more feed bins, pressure adjustable type, is characterized in that, including such as
Lower step:
1) the whole filterings and sorbing material layer replaced in filter device are completely new filtering and sorbing material layer.It is raw in 3-D image
The 3-D image that component is drawn on forming apparatus works out each position 3D printing operation procedure of component according to characteristics of image.
2) hermatic door for closing closed operating room, downloads the 3-D image of above-mentioned component in print job operator control panel, if
Determine the concentration, pressure, temperature value that working gas should reach in closed operating room and confirm, it is simultaneously true to input 3D printing operation procedure
Recognize.Exhaust valve is opened, circulating valve is closed, opens aeration valve, starts vacuum pump, starts compressed pneumatic pump；
3) when gas concentration, pressure, the temperature of working gas reach preset value in closed operating room；Circulating valve is opened, pressure is adjusted
The aperture of contracting air pump, the revolving speed of vacuum pump, exhaust valve keeps the concentration, pressure of working gas, temperature parameter in closed operating room steady
Surely pre-set interval is maintained, exhaust valve, aeration valve is closed, stops vacuum pump, operating gas parameters are stablized.
4) start storing in print job operator control panel and laser sintered ejecting device, three-dimensional motion workbench carry out 3D and beat
Operation is printed, the operation process and recording parameters of automatic display member in print job operator control panel, until 3D printing operation is completed, storage
Material and laser sintered ejecting device, three-dimensional motion workbench are automatically stopped；
5) circulating valve is closed, compressed pneumatic pump is stopped, opening exhaust valve, starts vacuum pump, when closed work room pressure is close to 1
When standard atmospheric pressure, stop vacuum pump, open the automatic seal door of closed operating room, take out workpiece, operation is completed.
Preferably, working gas is the gaseous mixture of argon gas and air in closed operating room in the step 2, and argon gas is dense
Degree is that any value that 80.00%~99.999%, pressure is 0.05~6MPa, temperature range is -40 DEG C~550 DEG C can start
3D printing operation.Obviously, the percentage for changing argon gas can control other gas packetized elementaries and participate in the micro- melt molding of material
When composition proportion, thus the performance of adjustment means.
Preferably, working gas is the gaseous mixture of CO2 gas and air, CO2 gas in closed operating room in the step 2
Any value that concentration is 80.00%~99.999%, pressure limit is 0.05~6MPa, temperature range is -40 DEG C~550 DEG C is equal
It can start 3D printing operation.Obviously, it is micro- to can control other gas packetized elementaries participation materials for the percentage for changing CO2 gas
Composition proportion when melt molding, thus the performance of adjustment means.
Preferably, working gas is the gaseous mixture of nitrogen and air in closed operating room in the step 2, and nitrogen is dense
Degree is any value that 80.00%~99.999%, pressure limit is 0.05~8MPa, temperature range is -40 DEG C~550 DEG C
Start 3D printing operation.Obviously, the percentage for changing nitrogen can control other gas packetized elementaries and participate in the micro- melting of material
Composition proportion when molding, thus the performance of adjustment means.
Compared with prior art, the present invention having following creativeness:
1. the present invention, as working gas, can make to prevent in metal alloy piece print procedure micro using falling property gas, CO2 gas
In air, oxygen, nitrogen, water vapour in exclusion air participate in the micro- of molten metal and smelted the exposure of scorification molten drop
Journey；It prevents air from changing the element proportion of metal material, guarantees the quality of shaped component.
2. changing, adjusting the pressure of working gas, component can be made to form the different component of internal microstructure.When closed
When the pressure of the working gas of operating room is greater than 1 standard atmospheric pressure, the microcosmic interior compact structure of common metal part can be improved
Property, increase the intensity of component.When the pressure of the working gas of closed operating room is less than 1 standard atmospheric pressure, gold can be made
Porosity and looseness and permeability is presented in the material for belonging to part, increases the performance diversification of component.
3. can once print double composite elements when storage bin is 2 subregion storage bin.Similarly, work as storage bin
When for multi partition storage bin, more composite elements can be once printed.
4. changing, adjusting the percentage of working gas concentration, it can control other gas packetized elementaries and participate in the micro- melting of material
Composition proportion when molding, to adjust the performance of final component.
Detailed description of the invention
Fig. 1 is the structural block diagram of the 3D printing system of the more pressure of silo adjustable types of the present invention.
Fig. 2 is 2 subregion schematic diagrames of storage bin in " storing and laser sintered ejecting device " of the present invention.
In Fig. 1: environmental system control unit 1,3-D image generating device 2, print job operator control panel 3, closed operating room
4, wherein concentration markers are D to gas componant sampling Detection device 5(, and d indicates the specific value of D), integrated temperature and pressure passes
Sensor 6(wherein pressure mark be P, p indicate P specific value, temperature marker T, t are expressed as the specific value of T), storing and
Laser sintered ejecting device 7, vacuum pump 8, exhaust valve 9, circulating valve 10, filter device 11, aeration valve 12, working gas entrance
13, compressed pneumatic pump 14, three-dimensional motion workbench 15.
Wherein, 3-D image generating device 2, print job operator control panel 3 have the sealed processing of communication cable and penetrate closed
In operating room 4, with storing and laser sintered ejecting device 7, three-dimensional motion workbench 15,3D printing working machine is constituted.
In Fig. 2: storing and laser sintered ejecting device 7, storage bin subregion isolation board 7a, b subregion baiting valve 7b, c subregion
Baiting valve 7c.Similarly, it is not difficult to draw out n subregion storage bin schematic diagram referring to Fig. 2 those skilled in the art, repeats no more herein.
Specific embodiment
The present invention is described in further detail with reference to the accompanying drawings and embodiments, but the embodiment should not be construed as pair
Limitation of the invention.
As shown in Figure 1, the present invention is made of printing environment generating means, 3D printing device, technical characteristic is: described
Printing environment generating means be by can the closed operating room 4 of automatic opening-closing door, compressed pneumatic pump 14, vacuum pump 8, integrated temperature and
Pressure sensor 6, gas componant sampling Detection device 5, environmental system control unit 1 form, and closed operating room's intracavity bottom is set
It is equipped with the admission line connecting with the exhaust outlet of compressed pneumatic pump 14, closed 4 inner cavity top of operating room is provided with exhaust pipe, exhaust
Pipeline is connect with exhaust valve 9 and circulating valve 10 respectively, and the outlet of exhaust valve 9 connects the entrance of vacuum pump 8 by pipeline.Circulating valve
10 are successively connect with the air inlet of filter device 11, compressed pneumatic pump 14 by pipeline.The company of filter device 11 and compressed pneumatic pump 14
Tonifying Qi pipeline and aeration valve 12 are provided on threading a pipe, the inlet duct 13 of the aeration valve is connect with working gas source.Institute
It is successively by dust filtering layer, Vapor adsorption layer, Oxygen Adsorption layer, nitrogen adsorption that filter device 11, which is stated, by recyclegas flow direction
Layer, hydrogen adsorption layer are composed in series.
The 3D printing device is by 3-D image generating device 2, print job operator control panel 3, three-dimensional motion workbench
15, storing and laser sintered ejecting device 7 form.Three-dimensional motion workbench 15, storing and the setting of laser sintered ejecting device 7 exist
In above-mentioned closed operating room 4.3-D image generating device 2, print job operator control panel 3 are arranged outside closed operating room 4.Storing and
Laser sintered ejecting device 7 and three-dimensional motion workbench 15 by the cable of sealed processing and are placed in outside closed operating room 4
3-D image generating device 2, print job operator control panel 3, environmental system control unit 1 be connected.
In the storing and laser sintered ejecting device 7, storage bin is that garden is cylindrical, and isolation board can be used in the column casing of garden
7a is divided into n subregion of volume equalization, and by respective baiting valve and laser sintered spray head connection, n's each subregion is positive
Integer.As shown in Figure 2；N=2, on the right of isolation board 7a is storage bin b subregion, and baiting valve is 7b, and the left side isolation board 7a is
Storage bin c subregion, baiting valve are 7c.
The detector of the integrated temperature and pressure sensor 6 is placed in 4 in above-mentioned closed operating room, temperature and pressure
The display and communication connection of sensor 6 are partially disposed in outside closed operating room 4.Gas componant sampling Detection device 5 is set to closed
Outside operating room 4, gas componant sampling can sample in aperture on closed 4 wall of operating room, or open in system exhaust pipeline, circulating line
Hole sampling.
The working gas source is argon gas, and concentration is 80.0%~99.999%.
The working gas source is carbon dioxide gas, and concentration is 80.0%~99.999%.
The nitrogen that the working gas source is, concentration are 80.0%~99.999%, above-mentioned filter device 11 at this time
In nitrogen adsorption layer should withdraw from, be also replaced by Vapor adsorption layer or Oxygen Adsorption layer.
The environmental system control unit 1 is examined with the sealing door operator of seal operation room 4, gas componant sampling
Device 5, pressure and temperature sensor 6, exhaust valve 9, circulating valve 11, aeration valve 12, compressed pneumatic pump 14, vacuum pump 8 are surveyed by leading to
News cable or wireless communication channel are connected as intelligent automatic-control system, and with 3-D image generating device 2, print job operator control panel 3
Information sharing is connected by wireless communication channel or communication cable.
The environmental system control unit 1 is PLC system or DCS system.3-D image generating device 2 has control concurrently simultaneously
The function of 3 host computer of unit 1 processed and print job operator control panel.
Case study on implementation one, present system process " vehicular aluminium inner tube of a tyre high-pressure hydrogen storing steel cylinder ".
Since steel material can fuse into micro protium, such as improper use in smelting process, easily there is hydrogen embrittlement and send out
Raw fracture.Therefore high-pressure hydrogen storing equipment must not generally use steel material, and steel contact high pressure hydrogen can accelerate the generation of hydrogen embrittlement.
Usual high-pressure hydrogen storing tank is made using aluminium alloy, but the intensity of aluminium alloy but be far below steel.With pushing away for hydrogen energy source automobile
Extensively, high quality, the hydrogen storage equipment of low cost manufacturing aluminium inner tube of a tyre outer patch steel sheath are always the dream of hydrogen gas production enterprise.3D printing
Making " vehicular aluminium inner tube of a tyre high-pressure hydrogen storing steel cylinder " can be good selection, and the present invention is undoubtedly " vehicular aluminium inner tube of a tyre high pressure
One of best production method of hydrogen storage steel cylinder ".
Specific production step sequence is as follows:
The three-dimensional image for generating above-mentioned " vehicular aluminium inner tube of a tyre high-pressure hydrogen storing steel cylinder " by 3-D image generating device 2 is spare.
Iron powder is added in the area storage bin b of storing and laser sintered ejecting device 7 addition aluminium powder, in 7 area storage bin c.
The filtering material layer replaced in filter device 11 is completely new filtering material, is followed successively by dust by airflow direction filter layer
Filter layer, Vapor adsorption layer, Oxygen Adsorption layer, nitrogen adsorption layer, hydrogen adsorption layer are composed in series.
The argon gas (d=99.999% of argon gas) of the connection deposit of working gas inlet duct 13.Close the close of closed operating room 4
Closure door downloads the 3-D image of above-mentioned " vehicular aluminium inner tube of a tyre high-pressure hydrogen storing steel cylinder " in print job operator control panel 3, sets closed
The concentration that working gas should reach in operating room 4 be d=99.99%~99.999%, pressure p=0.6~0.8Mpa, temperature t=5~
160 DEG C of numerical value simultaneously confirm, input 3D printing operation procedure and confirm.Environmental system control unit 1 receives confirmation instruction can be automatic
Exhaust valve 9 is opened, circulating valve 10 is closed, opens aeration valve 12, starts vacuum pump 8, starts compressed pneumatic pump 14, is replaced with argon gas close
Close in operating room 4 air；
When environmental system control unit 1 determines that concentration, pressure, the temperature of 4 argon gas in closed operating room reach pre-set interval value；Meeting
Circulating valve 10 is automatically opened, the aperture of compressed pneumatic pump 14, the revolving speed of vacuum pump 8, exhaust valve 9 is adjusted, makes work in closed operating room 4
The concentration, pressure, temperature parameter all-the-time stable for making gas maintain pre-set interval, and be automatically closed exhaust valve 9, aeration valve 12,
Stop vacuum pump 8, working gas is under the driving of compressed pneumatic pump 14 in closed operating room between 4, circulating valve 10, filter device 11
Circulation in stablizing.
Start storing in print job operator control panel 3 and laser sintered ejecting device 7, three-dimensional motion workbench 15 carry out 3D
Print job, storing and laser sintered ejecting device 7 can automatically select Steel material or aluminum material according to print routine, and printing is made
Automatically the operation process and recording parameters and data of " vehicular aluminium inner tube of a tyre high-pressure hydrogen storing steel cylinder " are shown in industry operator control panel 3, until
3D printing operation is completed, and storing and laser sintered ejecting device 7, three-dimensional motion workbench 15 be automatically stopped, and to environmental system
Control unit 1 issues instruction.
Environmental system control unit 1 closes circulating valve 10, stops compressed pneumatic pump 14, opens exhaust valve 9, starts vacuum pump 8,
When 4 pressure are close to 1 standard atmospheric pressure in closed operating room, stop vacuum pump 8, open the automatic-sealed of closed operating room 4
Door, 3D printing operation are completed.
4 operating air pressure is set as 6~8 times of standard atmospheric pressure in the above-mentioned closed operating room of present case, this can enable
The microcosmic structure of the steel, aluminum metal that print has very high compactness, and inner tube of a tyre aluminum metal compactness height can be effective
Prevent hydrogen atom from leaking along interstitial void, the microcosmic structure compactness of steel is high, substantially increases the high pressure resistant strong of hydrogen container
Degree.
Case study on implementation two, present system process " the SiC carrier of preparing hydrogen by sodium borohydride hydrolysis catalyst ".
" the SiC carrier of preparing hydrogen by sodium borohydride hydrolysis catalyst " of known technology preparation is usually graininess, due to right
Its internal microstructure of SiC carrier media is loose, has permeability, and specific surface area is sufficiently large, therefore well-known technique manufacturing process is multiple
It is miscellaneous, acid liquid corrosion need to be used, there is pollution discharging of waste liquid.And present system can be used air pressure lower than 1 standard it is big
The argon gas of air pressure, 3D printing go out " the SiC carrier of preparing hydrogen by sodium borohydride hydrolysis catalyst ".
Present case is that cylindricality hydrolytic hydrogen production reaction vessel in garden is mating, " the SiC carrier of catalyst " is designed as having certain
It is suitable for the garden tubular of wall thickness.Specific production step sequence is as follows:
The three-dimensional image for generating above-mentioned " cylindric SiC carrier " by 3-D image generating device 2 is spare.
Sodium rice grade SiC powder is added in the storage bin of storing and laser sintered ejecting device 7.
The filtering material layer replaced in filter device 11 is completely new filtering material, is followed successively by dust by airflow direction filter layer
Filter layer, Vapor adsorption layer, Oxygen Adsorption layer, nitrogen adsorption layer, hydrogen adsorption layer are composed in series.
The argon gas (d=99.999% of argon gas) of the connection deposit of working gas inlet duct 13.Close the close of closed operating room 4
Closure door, downloads the 3-D image of above-mentioned " cylindric carrier " in print job operator control panel 3, sets work in closed operating room 4
The concentration that gas should reach is that be set as negative pressure p=pmin~0.05Mpa(pmin be negative pressure by d=99.99%~99.999%, pressure P
Least limit does not generate the low-priced numerical value penetrated for the material in closed operating room 4), temperature t=5~160 DEG C numerical value and confirm, it is defeated
Enter 3D printing operation procedure and confirm, environmental system control unit 1 can automatically open exhaust valve 9, close circulating valve 10, open and mend
Air valve 12 starts vacuum pump 8, starts compressed pneumatic pump 14；In closed operating room 4 air is replaced with argon gas.
Environmental system control unit 1 determines that concentration, pressure, the temperature of 4 working gas in closed operating room reach preset areas
Between when being worth；Circulating valve 10 is automatically opened, the aperture of compressed pneumatic pump 14, the revolving speed of vacuum pump 8, exhaust valve 9 is adjusted, makes closed work
The concentration, pressure of working gas, temperature parameter are stably maintained at pre-set interval in room 4, be automatically closed exhaust valve 9, aeration valve 12,
Stop vacuum pump 8, and automatic stabilisation operating gas parameters.
Start storing in print job operator control panel 3 and laser sintered ejecting device 7, three-dimensional motion workbench 15 carry out 3D
Print job shows the operation process and recording parameters and data of " cylindric SiC carrier " in print job operator control panel 3 automatically,
Until 3D printing operation is completed, storing and laser sintered ejecting device 7, three-dimensional motion workbench 15 be automatically stopped, and to environment
System control unit 1 issues instruction.
Environmental system control unit 1 is connected to instruction, and circulating valve 10 can be automatically closed, and stops vacuum pump 8, opens aeration valve
12, start compressed pneumatic pump 14, when 4 pressure are close to 1 standard atmospheric pressure in closed operating room, closes aeration valve 12, stop pressure
Contracting air pump 14, opens the automatic seal door of closed operating room 4, and 3D printing " cylindric SiC carrier " operation is completed.
4 operating air pressure is set to be lower than the negative pressure of standard atmospheric pressure in the above-mentioned closed operating room of present case, close to SiC
The pmin value of material, this can enable " cylindric SiC carrier " component microstructures to have very high sponginess and permeability, adds
Accelerate sodium borohydride solution after note catalyst releases Hydrochemistry reaction." SiC carrier " can be according to the shape of hydrolytic hydrogen production container simultaneously
Suitable " the cylindric SiC carrier " component of shape is made, after facilitating filling and hydrogen production process of the catalyst on carrier in shape
Catalyst regeneration.And 3D printing operation of the present invention does not have waste liquid, exhaust gas discharge, environmentally friendly.
Claims (11)
1. the 3D printing system of a kind of more feed bins, pressure adjustable type is made of printing environment generating means, 3D printing device,
Technical characteristic is: the printing environment generating means are by can the closed operating room of automatic opening-closing door, compressed pneumatic pump, vacuum
Pump, integrated temperature and pressure sensor, gas componant sampling Detection device, environmental system control unit composition, closed work
Room intracavity bottom is provided with the admission line connecting with the exhaust outlet of compressed pneumatic pump, and closed operating room's inner cavity top is provided with exhaust
Pipeline, exhaust pipe are connect with exhaust valve and circulating valve respectively, and the outlet of exhaust valve connects the entrance of vacuum pump by pipeline, are followed
Ring valve is successively connect with the air inlet of filter device, compressed pneumatic pump by pipeline, the connecting pipe of filter device and compressed pneumatic pump
On be provided with tonifying Qi pipeline and aeration valve, the entrance of the aeration valve is connect with working gas source, and the filter device is by following
Ring gas flow is successively by dust filtering layer, Vapor adsorption layer, Oxygen Adsorption layer, nitrogen adsorption layer, the series connection of hydrogen adsorption layer
Composition;
The 3D printing device is by 3-D image generating device, three-dimensional motion workbench, storing and laser sintered cartridge nozzle
It sets, print job operator control panel composition, three-dimensional motion workbench, storing and laser sintered ejecting device are arranged in above-mentioned closed work
Interior, 3-D image generating device, print job operator control panel are arranged outside above-mentioned closed operating room, storing and laser sintered spray head
Device and three-dimensional motion workbench are set by the cable of sealed processing with the 3-D image generation being placed in outside closed operating room
Standby, print job operator control panel, environmental system control unit are connected.
2. the 3D printing system of a kind of more feed bins according to claim 1, pressure adjustable type, technical characteristic is: described
In storing and laser sintered ejecting device, storage bin is that garden is cylindrical, and isolation board can be used to be divided into volume equity in the column casing of garden
N subregion, for each subregion by respective baiting valve and laser sintered spray head connection, n is positive integer.
3. the 3D printing system of a kind of more feed bins according to claim 1, pressure adjustable type, technical characteristic is: described
The detector of integrated temperature and pressure sensor is placed in above-mentioned closed operating room, the display of temperature and pressure sensor and logical
Letter coupling part is placed in outside closed operating room, and gas componant sampling Detection device is set to outside closed operating room, and gas componant is taken out
Sample can sample in aperture on closed chamber wall, or sample in system exhaust pipeline, circulating line aperture.
4. the 3D printing system of a kind of more feed bins according to claim 1, pressure adjustable type, technical characteristic is: described
The gas source of working gas is respectively the argon gas of concentration 99.999%, 99.999% carbon dioxide gas, 99.999% nitrogen, works as work
When making the gas source of gas and using the nitrogen of concentration 99.999%, the nitrogen adsorption layer in above-mentioned filter device should be withdrawn from, also replaceable
For Vapor adsorption layer or Oxygen Adsorption layer.
5. the 3D printing system of a kind of more feed bins according to claim 1, pressure adjustable type, technical characteristic is: described
Automatic opening-closing, gas componant sampling Detection device, pressure and the temperature of environmental system control unit and seal operation room door
Sensor, exhaust valve, circulating valve, aeration valve, compressed pneumatic pump, vacuum pump are connected as intelligence by communication cable or wireless communication channel
Energy robot control system(RCS), and connect with 3-D image generating device, print job operator control panel by wireless communication channel or communication cable
And information sharing.
6. the 3D printing system of a kind of more feed bins according to claim 1, pressure adjustable type, technical characteristic is: described
Environmental system control unit is PLC system or DCS system, and 3-D image generating device has control unit concurrently simultaneously and printing is made
The function of industry operator control panel host computer.
7. the 3D printing process of a kind of more feed bins according to claim 1, pressure adjustable type, technical characteristic is:
In closed operating room when air pressure p≤0.1Mpa, printing step sequence is；
1) the whole filtering and sorbing material layer replaced in filter device are completely new filtering and sorbing material layer, in 3-D image life
The 3-D image that component is drawn on forming apparatus works out each position 3D printing operation procedure of component according to characteristics of image;
2) hermatic door for closing closed operating room, downloads the 3-D image of above-mentioned component in print job operator control panel, sets close
It closes the concentration, pressure, temperature value that working gas should reach in operating room and confirms, input 3D printing operation procedure and confirm,
Exhaust valve is opened, circulating valve is closed, opens aeration valve, starts vacuum pump, starts compressed pneumatic pump；
3) when gas concentration, pressure, the temperature of working gas reach preset value in closed operating room；Circulating valve is opened, pressure is adjusted
The aperture of contracting air pump, the revolving speed of vacuum pump, exhaust valve keeps the concentration, pressure of working gas, temperature parameter in closed operating room steady
Surely pre-set interval is maintained, exhaust valve, aeration valve is closed, stops vacuum pump, operating gas parameters are stablized；
4) start storing in print job operator control panel and laser sintered ejecting device, three-dimensional motion workbench carry out 3D printing work
Industry, the operation process and recording parameters of automatic display member in print job operator control panel, until 3D printing operation is completed, storing and
Laser sintered ejecting device, three-dimensional motion workbench are automatically stopped；
5) when air pressure is set greater than 1 standard atmospheric pressure, circulating valve is closed, stops compressed pneumatic pump, the row of opening
Air valve starts vacuum pump, when closed work room pressure is close to 1 standard atmospheric pressure, stops vacuum pump, opens closed work
The automatic seal door of room, takes out workpiece, and operation is completed.
8. the 3D printing process of a kind of more feed bins according to claim 1, pressure adjustable type, technical characteristic is:
In closed operating room when air pressure p ∠ 0.1Mpa, printing step sequence is；
1) the whole filtering and sorbing material layer replaced in filter device are completely new filtering and sorbing material layer, in 3-D image life
The 3-D image that component is drawn on forming apparatus works out each position 3D printing operation procedure of component according to characteristics of image；
2) hermatic door for closing closed operating room, downloads the 3-D image of above-mentioned component in print job operator control panel, sets close
It closes the concentration, pressure, temperature value that working gas should reach in operating room and confirms, input 3D printing operation procedure and confirm,
Exhaust valve is opened, circulating valve is closed, opens aeration valve, starts vacuum pump, starts compressed pneumatic pump；
3) when gas concentration, pressure, the temperature of working gas reach preset value in closed operating room；Circulating valve is opened, pressure is adjusted
The aperture of contracting air pump, the revolving speed of vacuum pump, exhaust valve keeps the concentration, pressure of working gas, temperature parameter in closed operating room steady
Surely pre-set interval is maintained, aeration valve is closed, closes exhaust valve, stops vacuum pump, operating gas parameters are stablized；
4) start storing in print job operator control panel and laser sintered ejecting device, three-dimensional motion workbench carry out 3D printing work
Industry, the operation process and recording parameters of automatic display member in print job operator control panel, until 3D printing operation is completed, storing and
Laser sintered ejecting device, three-dimensional motion workbench are automatically stopped；
5) circulating valve is closed, when closed work room pressure is close to 1 standard atmospheric pressure, stops compressed pneumatic pump, opens closed
The automatic seal door of operating room, takes out workpiece, and operation is completed.
9. the 3D printing process of a kind of more feed bins according to claim 1, pressure adjustable type, technical characteristic is:
Working gas is the gaseous mixture of argon gas and air in the closed operating room, and argon concentration is 80.00%~99.999%, pressure
Any value for being -40 DEG C~550 DEG C for 0.05~6MPa, temperature range can start 3D printing operation.
10. the 3D printing process of a kind of more feed bins according to claim 1, pressure adjustable type, technical characteristic is:
Working gas is the gaseous mixture of CO2 gas and air in the closed operating room, and CO2 gas concentration is 80.00%~99.999%, presses
Any value that power range is 0.05~6MPa, temperature range is -40 DEG C~550 DEG C can start 3D printing operation.
11. the 3D printing process of a kind of more feed bins according to claim 1, pressure adjustable type, technical characteristic is:
Working gas is the gaseous mixture of nitrogen and air in the closed operating room, and nitrogen gas concn is 80.00%~99.999%, pressure
Any value that range is 0.05~8MPa, temperature range is -40 DEG C~550 DEG C can start 3D printing operation.
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| CN111992718A (en) * | 2020-09-01 | 2020-11-27 | 贵州航天风华精密设备有限公司 | 3D printing device and method for continuously manufacturing magnesium alloy parts |
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