CN206446125U - A kind of quick many sintering increasing material manufacturing equipment - Google Patents
A kind of quick many sintering increasing material manufacturing equipment Download PDFInfo
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- CN206446125U CN206446125U CN201720100659.3U CN201720100659U CN206446125U CN 206446125 U CN206446125 U CN 206446125U CN 201720100659 U CN201720100659 U CN 201720100659U CN 206446125 U CN206446125 U CN 206446125U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
Abstract
The utility model discloses quick many sintering increasing material manufacturing equipment, the equipment includes rack-mounted powder machine tool system, face sintering subsystem and line sintering subsystem；The powder machine tool system includes shaped platform, powder conveyance device and the powder laying apparatus of vertical lift, powder for molding is delivered to the powder laying apparatus by the powder conveyance device, the powder for molding is deposited in above the shaped platform and constitutes powder bed by the powder laying apparatus, the powder bed upper surface includes the sintering region for carrying out sintering curing, and the sintering region sinters region by face and is enclosed in the overseas line sintering region in face sintering zone and constitutes；The utility model has the advantages that by face sintering and line sinter bonded and improving shaping speed and also ensure that formed precision.
Description
Technical field
The utility model is related to a kind of quick many sintering increasing material manufacturing equipment, belongs to increases material manufacturing technology, particularly belongs to base
In powder sintered increases material manufacturing technology field.
Background technology
At present, increases material manufacturing technology is increasingly extensive by the application developed in the industrial production of decades.Wherein, laser
Powder is sintered together to form required part, its application by selection sintering (SLS) technology by way of laser scanning
Extensively, formed precision is high, the good mechanical property of part for material, so obtaining increasing application to make in industrial application
Make function part.
The A of United States Patent (USP) US 4863538 disclose a kind of method and apparatus that part is manufactured by selective sintering.This sets
It is standby to include computer controlled laser laser energy is directed on powder to produce agglomerate.For each cross section, swash
The target of light beam is scanned on powder bed, and the powder in sintered cross-sections border.By applying succeeding layer powder and carrying out
Described scanning sintering is until forming complete part.The SLS molding modes of the technology are because be that one or several laser rays is swept
Powder for molding is retouched, the rise of its temperature is reached the purpose of sintering, the mode shaping speed of this scanning is slower, limits the technology
Application.
For example, Publication No. CN106322983A patent discloses a kind of soft alloy sintering stove of artificial tooth, it is related to high temperature
Agglomerating plant field.A kind of soft alloy sintering stove of artificial tooth, including annular furnace heating system, gas air supply system, sintering pan
Suit system, material carrier platform jacking system, the part of man-machine control system five composition.The sintering pan suit system uses small one and large one
The protective atmosphere circulatory system of refractory ceramics sintering pan composition, gas air supply system institute supplied gas is protective gas, described
Protective gas is argon gas, and the material carrier platform jacking system is electric power jacking system, and gas air supply system is provided with flowmeter, gas
Body air supply system is by tracheae and sintering pan suit system connection.
For example, Publication No. CN106310540A patent discloses a kind of beam-shaping treated for neutron capture
Body, including beam entrance, target, be adjacent to the slow body of target, be enclosed in slow external reflector, abutted with slow body
Thermal neutron absorber, the radiation shield being arranged in beam-shaping body and beam outlet, target and the matter from the incidence of beam entrance
Nuclear reaction occurs for beamlet to produce neutron, neutron formation limits the neutron beam of a main shaft, and slow body will be produced from target
Neutron degradation is to epithermal neutron energy area, and the material of slow body is in containing LiF, Li2CO3, Al2O3, AlF3, CaF2 or MgF2
At least one material is made, and it becomes blocking by powder sintering process through powder sintered equipment by powder or powder compact, reflection
The neutron that body will deviate from main shaft leads back to main shaft to improve epithermal neutron intensity of beam, thermal neutron absorber be used to absorbing thermal neutron with
Avoid causing multiple dose during treatment with shallow-layer normal structure, the neutron and photon that radiation shield is used to shield seepage are non-to reduce
The normal tissue dose of irradiated region.
For example, Publication No. CN205881682U patent discloses a kind of technique applied to annular ferrite core
Ring.Technique ring generally cirque structure, technique ring upper and lower surface is to be provided with more than two ventilations on plane, lower surface
Mouthful；Ventilating opening is lateral surface in the groove being arranged on FERRITE CORE technique ring lower surface, groove connection technique ring；Groove is
Circular arc type structure, depth of groove is not higher than 1/2nd of technique ring lateral width, and recess width is not higher than technique ring medial surface
The length of radius.The utility model structure is novel, designs advantages of simple.By setting outside in insertion technique ring on technique ring
The ventilating opening in face, the distinguished and admirable of agglomerating plant offer can be entered by four ventilating openings from cylinder bottom, then from top discharge, be formed
Distinguished and admirable circulation.For example, Publication No. CN205860766U patent discloses a kind of Zirconium oxide sintering stove, including annular furnace plus
Hot systems, sintering furnace body, sintering pan, material carrier platform jacking system, the part of man-machine control system five composition.The Human-machine Control system
System uses touch screen PID+PLC control systems, and heating curves Real time dynamic display, sintering process curve editable prestores, and sinters number
According to that can automatically save, USB interface is configured, automatic lifting structure can be used with PC remote controls, the material carrier platform jacking system,
The sintering pan using can stacked configuration, the annular furnace heating system is circular layout structure using heating element heater.
In summary, it is traditional SLS/SLM molding modes in place of traditional the deficiencies in the prior art because being one
Or several laser line scannings are molded, shaping speed is slower；3DP increases material manufacturing technologies based on powder are because be to powder spray gluing
Water, its original shaping intensity is not high, and subsequent treatment is complicated, it is difficult to be molded function part.
Utility model content
The purpose of this utility model, which is that offer is a kind of, can overcome quick many sintering increasing material manufacturings of above-mentioned technical problem
Equipment.The utility model overcomes the shortcomings of conventional art, it is proposed that quick many sintering (Fast Multi-Sintering) increase material
Manufacture method and the equipment for realizing quick many sintering increasing material manufacturing methods, the utility model are keeping SLS/SLM formed precisions
Also improve shaping speed simultaneously.
Quick many sintering increasing material manufacturing equipment of the present utility model sinter son by rack-mounted powder machine tool system, face
System and line sintering subsystem composition；The powder machine tool system includes shaped platform, powder conveyance device and the powder of vertical lift
Powder for molding is delivered to the powder laying apparatus, the powder laying apparatus by last laying apparatus, the powder conveyance device
The powder for molding is deposited in above the shaped platform and constitutes powder bed, the powder bed upper surface, which is included, carries out sintering curing
Region is sintered, the sintering region sinters region by face and is enclosed in the overseas line sintering region in face sintering zone and constitutes；It is described
Face sintering subsystem includes infrared source and face sintering initiating device；The face sintering initiating device can change face sintering region
Powder for molding for the infrared source absorptive rate of radiation so that the face sintering region powder for molding pass through absorb heat
The radiation of radiation source causes the rise of its temperature to reach sintering；The line sintering subsystem includes line sintering energy source, laser scanning
Device and focusing arrangement；The focusing arrangement focuses on the radiation in line sintering energy source the upper surface of the powder bed, and by institute
State laser scanning device and sinter sector scanning in the line, make the powder for molding in the region by the spoke in Absorption Line sintering energy source
Penetrating causes the rise of its temperature to reach sintering.
Face sintering is carried out in the way of two dimensional surface, and its speed sintered is fast, but is due to the power of the infrared source
Limitation and powder for molding are to the rate of change scope of the absorptive rate of radiation of the infrared source, and face sinters region and non-sintered region
The temperature difference it is smaller, temperature gradient particularly in sintering region to the transition portion in non-sintered region is relative to be relaxed, and face sintering is taken turns
Wide precision is not often high, and the non-sintered region refers to sinter the part beyond region.
To overcome face to sinter the problem of contour accuracy is not high, in the overseas wired sintering region of encirclement in face sintering zone, line sintering
Subsystem focal line sintering energy source reaches higher sintering power density in the sintering region of powder bed, with higher sintering profile
Precision, but, because being carried out in the way of line is scanned, it is relatively lower speed that line is sintered.
The face sintering initiating device includes the liquid numerical control nozzle being arranged on horizontal movement device, the liquid numerical control
Radiation adsorber is sprayed onto the face sintering region and changes absorptive rate of radiation of the region to the infrared source by shower nozzle.
The face sintering initiating device includes triggering optical projection device and the powder for molding includes photosensitive material, described
Trigger optical projection device that light will be triggered to project to the face and sinter region, make the absorption spectrum of the photosensitive material of the powder for molding
Change, so as to change the absorptivity of its radiation to infrared source, and cause the face to sinter the powder for molding temperature in region
Degree rise reaches sintering.
The line sintering energy source is laser.The powder for molding is nylon powder.It is basic due to powder 3D printer
Structure has been standard configuration, is known technology, so not doing excessive explanation.
The course of work of quick many sintering increasing material manufacturing equipment of the present utility model comprises the following steps：
1st, it is to sinter region and be divided into face sintering region and be enclosed in the overseas line in face sintering zone to sinter by every formable layer region
Region.The line sintering region includes the outline of forming area, additionally it is possible in being planned according to certain filling proportion
Portion's dowel structure, face sintering region is remaining internal closure plane space.Line sintering region can be carried by laser sintered
High accuracy；Face sintering region is sintered by way of radiation exposure to be conducive to improving shaping speed.
2nd, powder bed top sets infrared source；
3rd, a formable layer powder is laid on powder bed, forms working lining powder for molding；
4th, sintered on the formable layer powder by line described in the radiation sinter molding in focusing and scan line sintering energy source
Region；
5th, change the absorptivity that radiate for infrared source of working lining powder for molding subregion so that face sintering region by
Radiation in more absorptive thermal radiation source causes the rise of its temperature to produce sintering；On the one hand the absorptivity radiated to thermal source is changed
There are a variety of methods, including but not limited to spray thermal source radiation adsorber, by triggering light to change photosensitive material in powder for molding
Absorption spectrum；On the other hand it is that erect image also can be negative-appearing image to change thermal source absorptive rate of radiation, for example, can make the spoke in sintering region
Absorptivity increase is penetrated, the absorptive rate of radiation in non-sintered region can also reduced；
6th, a formable layer powder is re-layed on powder bed, forms working lining powder for molding；
7th, sintered on the formable layer powder by line described in the radiation sinter molding in focusing and scan line sintering energy source
Region, and be partially bonded together with the sintering of preceding layer；
8th, change the absorptivity that radiate for infrared source of working lining powder for molding subregion so that face sintering region by
Radiation in more absorptive thermal radiation source causes the rise of its temperature to produce sintering, and is combined with the part of sintering of preceding layer
Together；
9th, repeat step 6 to step 8 until completing whole forming process.
In addition, for hanging region, correspondence overlapping previous layer segment in working lining sintering region is then adopted for non-sintered region
With line sintering processing to improve formed precision.
The utility model has the advantages that face sintering and line sintering are combined and the speed of shaping is drastically increased simultaneously
It also ensure that the precision of shaping.
Brief description of the drawings
Fig. 1 is the overall structure diagram of quick many sintering increasing material manufacturing equipment described in the utility model；
Fig. 2 is the structural representation of horizontal movement device described in the utility model；
Fig. 3 is the forming part structure schematic diagram machined with the utility model.
In figure, 1- frames, 2- laser scanning devices, 3- liquid numerical control nozzles, 4- horizontal movement devices, 5- radiation absorptions
Agent, 6- powder for molding, 7- infrared sources, 8- powder storage chambers, 9- powder compacting chambers, 10- powder pushes platform, and 11- shapings are flat
Platform, 12- powder laying apparatus, 13- faces sintering region, 14- lines sintering region, 15- ink jet subsystem cross slide ways, 16- ink-jets
Subsystem transverse slider, 17- ink jet subsystem longitudinal rails, 18- ink jet subsystem longitudinal sliding blocks, 19- forming areas are key outer
Profile, 20- forming areas backbone's dowel.
Embodiment
Embodiment of the present utility model is described in detail below in conjunction with the accompanying drawings.Powder increasing material manufacturing equipment it is basic
Construction, powder-processed, powder storage, the model slice that powder is transported, powder laying and increasing material manufacturing method are related to generate every
The forming area and the principle of layered structure of layer are known technologies, are described again here.
As shown in figure 1, quick many sintering increasing material manufacturing equipment of the present utility model are by the powder machine tool system in frame 1
System, laser scanning subsystem, inkjet printing subsystem and infrared source 7 are constituted.
The powder machine tool system includes shaped platform 11, powder conveyance device and the powder laying apparatus 12 of vertical lift；
The powder conveyance device pushes platform 10 by powder storage chamber 8 and powder and constituted；It is powder fortune that the powder, which pushes platform 10,
Send a part for device.The powder for molding 6 is deposited in the top of shaped platform 11 and constitutes powder by the powder laying apparatus
Bed, i.e., powder for molding 6 of the described powder bed between powder compacting chamber 9 and shaped platform 11 is constituted；The powder bed upper surface is included
The sintering region of solidification is sintered, the sintering region sinters region by face and is enclosed in the overseas line in face sintering zone and sinters
Region is constituted.
The face sintering subsystem includes infrared source 7 and face sintering initiating device；The face sintering initiating device can
Change face sinters the absorptive rate of radiation of the powder for molding for the infrared source in region, so that the face sinters the shaping in region
Powder causes the rise of its temperature to reach sintering by the radiation in absorptive thermal radiation source；For example, the face sintering initiating device is spray
Black printer subsystem, its ink sprayed can change absorptive rate of radiation of the powder for molding for the infrared source；The ink-jet
Printer subsystem includes infusion device, blow head maintenance device, horizontal movement device 4 and on horizontal movement device 4
Liquid numerical control nozzle 3.
The laser scanning subsystem includes laser (not shown), laser scanning device as line sintering subsystem
2 and focusing arrangement (not shown)；The focusing arrangement focuses on the radiation in line sintering energy source the upper table of the powder bed
Face, and sector scanning is sintered in the line by the laser scanning device 2, the powder for molding in the region is sintered by Absorption Line
The radiation of energy source causes the rise of its temperature to reach sintering.Fig. 2 is the structural representation that face sinters initiating device numerical control nozzle.
Horizontal movement device as shown in Figure 2, including, two ink jet subsystem cross slide ways 15 in frame 1,
And the two ink jet subsystem transverse sliders 16 that can be slided respectively on the ink jet subsystem cross slide way 15, described
Ink jet subsystem longitudinal rail 17 is installed, ink jet subsystem longitudinal sliding block 18 exists between two ink jet subsystem transverse sliders 16
Lengthwise movement on the ink jet subsystem longitudinal rail 17.So, the ink jet subsystem longitudinal sliding block 18 can be in the spray
Moved horizontally in the region that Mo-tse system cross slide way 15 and the ink jet subsystem longitudinal rail 17 are limited.In addition, institute
State and liquid numerical control nozzle 3 is installed on ink jet subsystem longitudinal sliding block 18, liquid numerical control nozzle 3 also can be in the ink-jet subsystem
Moved horizontally in the region that system cross slide way 15 and the ink jet subsystem longitudinal rail 17 are limited, and the ink-jet subsystem
The region that system cross slide way 15 and the ink jet subsystem longitudinal rail 17 are limited can cover the shaped platform in powder compacting chamber 9
11 region, completes the ink ejection operation of setting.
The radiation of infrared source 7 is infrared ray, particularly near-infrared, while the radiation of infrared source 7 also includes visible ray
Composition；The selection of infrared source 7 includes but is not limited to ceramic infrared radiation source, Halogen lamp LED, carbon fiber infrared source, specifically chosen to want root
To thermal radiation absorption rate after triggering according to powder for molding to absorptivity and the quilt cover sintering of heat radiation.
The line sintering region of forming area as shown in Figure 3 at least includes the outline of forming area, while in order to be added to
The mechanical strength of type part and the deformation for reducing forming process, the line sintering region of forming area can also include internal reinforcement
Structure.
The line sintering region and face sintering region of forming area can overlap.The overlapping region had both undergone line burning
Face sintering operation is also undergone in knot operation.The first overlap mode is the local edge that online sintering region and face sintering region connect
Overlapping, the area of the edge lap is typically not greater than 2/3rds of line sintering region area.The edge is overlapping
Advantage is：On the one hand the bond strength between line sintering region and face sintering local is added；On the other hand line burning can be reduced
The requirement of alignment precision, reduces cost and improves reliability between tie region and face sintering local.Second of overlap mode is portion
Separated time sintering region formation network structure is passed through and covering part facet sintering zone domain forms covering and overlapped, and can also regard part as
The reinforcing rib structure sinters the situation that local is overlapped with face.The covering intersection generally advanced line sintering operation, so
Carry out face sintering operation again afterwards, provide attached in face sintering region simultaneously the purpose is to the local area that region is sintered by reducing face
Structure to reduce warpage and the contraction distortion in face sintering region.
In addition, the line sintering region of forming area and the shaping order in face sintering region can be exchanged and intersected, i.e., first
Form wire sintering region reshaping face sintering region, also can be first forming surface sintering region reshaping line sintering region, Huo Zhejiao
Fork is carried out, for example, be first molded the reinforcement of backbone, reshaping face sintering region is finally molded the outline of backbone.Because being related to
To radiation absorption and sintering of the powder for molding to infrared source 7, the sintering temperature of the powder for molding used is typically chosen in 600
Below degree, including low-melting alloy and high polymer material, such as nylon powder.
The course of work of quick many sintering increasing material manufacturing equipment of the present utility model comprises the following steps：
1st, it is to sinter region and be divided into face sintering region and be enclosed in the overseas line in face sintering zone to sinter by every formable layer region
Region.The line sintering region includes the outline 19 of forming area, additionally it is possible to including what is planned according to certain filling proportion
Internal dowel structure 20, as shown in Figure 3；Face sintering region is remaining internal closure plane space.Line sintering region passes through
It is laser sintered to improve precision；Face sintering region is sintered by way of radiation exposure to be conducive to improving shaping speed.
2nd, powder bed top sets infrared source；
3rd, a formable layer powder is laid on powder bed, forms working lining powder for molding；
4th, sintered on the formable layer powder by line described in the radiation sinter molding in focusing and scan line sintering energy source
Region；
5th, change the absorptivity that radiate for infrared source of working lining powder for molding subregion so that face sintering region by
Radiation in more absorptive thermal radiation source causes the rise of its temperature to produce sintering；On the one hand the absorptivity radiated to thermal source is changed
There are a variety of methods, including but not limited to spray thermal source radiation adsorber, by triggering light to change photosensitive material in powder for molding
Absorption spectrum；On the other hand it is that erect image also can be negative-appearing image to change thermal source absorptive rate of radiation, for example, can make the spoke in sintering region
Absorptivity increase is penetrated, the absorptive rate of radiation in non-sintered region can also reduced；
6th, a formable layer powder is re-layed on powder bed, forms working lining powder for molding；
7th, sintered on the formable layer powder by line described in the radiation sinter molding in focusing and scan line sintering energy source
Region, and be partially bonded together with the sintering of preceding layer；
8th, change the absorptivity that radiate for infrared source of working lining powder for molding subregion so that face sintering region by
Radiation in more absorptive thermal radiation source causes the rise of its temperature to produce sintering, and is combined with the part of sintering of preceding layer
Together；
9th, repeat step 6 to step 8 until completing whole forming process.
In addition, for hanging region, correspondence overlapping previous layer segment in working lining sintering region is then adopted for non-sintered region
With line sintering processing to improve formed precision.
It is described above, embodiment only of the present utility model, but protection domain of the present utility model do not limit to
In this, any one skilled in the art is in the utility model scope of disclosure, the change that can be readily occurred in
Or replace, it should all cover in the utility model scope of the claims.
Claims (6)
1. a kind of quick many sintering increasing material manufacturing equipment, it is characterised in that including：Rack-mounted powder machine tool system, face
Sinter subsystem and line sintering subsystem；The powder machine tool system include vertical lift shaped platform, powder conveyance device and
Powder for molding is delivered to the powder laying apparatus, the powder laying dress by powder laying apparatus, the powder conveyance device
Put the powder for molding being deposited in above the shaped platform and constitute powder bed, the powder bed upper surface, which is included, carries out sintering curing
Sintering region, the sintering region by face sinter region and be enclosed in face sintering zone it is overseas line sintering region constitute；Institute
Stating face sintering subsystem includes infrared source and face sintering initiating device.
2. a kind of quick many sintering increasing material manufacturing equipment according to claim 1, it is characterised in that the line sinters subsystem
System includes line sintering energy source, laser scanning device and focusing arrangement；The focusing arrangement gathers the radiation in line sintering energy source
The burnt upper surface in powder bed.
3. a kind of quick many sintering increasing material manufacturing equipment according to claim 1, it is characterised in that the face sintering triggers
Device includes the liquid numerical control nozzle being arranged on horizontal movement device, and radiation adsorber is sprayed onto by the liquid numerical control nozzle
The face sinters region.
4. a kind of quick many sintering increasing material manufacturing equipment according to claim 1, it is characterised in that the face sintering triggers
Device includes triggering optical projection device and the powder for molding includes photosensitive material, and the initiation optical projection device will trigger light
Project to the face sintering region.
5. a kind of quick many sintering increasing material manufacturing equipment according to claim 1, it is characterised in that the line sintering energy
Source is laser.
6. a kind of much quicker sintering increasing material manufacturing equipment according to claim 1, it is characterised in that the powder for molding is
Nylon powder.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201720100659.3U CN206446125U (en) | 2017-01-24 | 2017-01-24 | A kind of quick many sintering increasing material manufacturing equipment |
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| CN201720100659.3U CN206446125U (en) | 2017-01-24 | 2017-01-24 | A kind of quick many sintering increasing material manufacturing equipment |
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| CN206446125U true CN206446125U (en) | 2017-08-29 |
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ID=59667884
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106738908A (en) * | 2017-01-24 | 2017-05-31 | 厦门达天电子科技有限公司 | A kind of quick many sintering increasing material manufacturing device and method |
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- 2017-01-24 CN CN201720100659.3U patent/CN206446125U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106738908A (en) * | 2017-01-24 | 2017-05-31 | 厦门达天电子科技有限公司 | A kind of quick many sintering increasing material manufacturing device and method |
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Effective date of registration: 20210201 Address after: Room 401, 248-3 Zengcheng Avenue, Licheng street, Zengcheng District, Guangzhou, Guangdong 511300 Patentee after: Guangzhou Hengrui Electronic Technology Co.,Ltd. Address before: Room 606, No. 70 Longshan South Road, Siming District, Xiamen City, Fujian Province Patentee before: XIAMEN DATIAN ELECTRONIC TECHNOLOGY Co.,Ltd. |