CN105014976A - Sealed type selective laser melting equipment - Google Patents
Sealed type selective laser melting equipment Download PDFInfo
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- CN105014976A CN105014976A CN201510520004.7A CN201510520004A CN105014976A CN 105014976 A CN105014976 A CN 105014976A CN 201510520004 A CN201510520004 A CN 201510520004A CN 105014976 A CN105014976 A CN 105014976A
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Abstract
The invention discloses sealed type selective laser melting equipment which comprises a powder bed and a powder cylinder arranged below the powder bed. The powder cylinder comprises a forming cylinder body and a powder supply cylinder body, and further comprises a sealed cavity cover arranged on the powder bed. A forming chamber, an auxiliary chamber and an isolating device arranged between the forming chamber and the auxiliary chamber are arranged in the sealed cavity cover. The forming chamber is located over the powder cylinder, and a scraper assembly is arranged in the forming chamber. A bottom plate arranged on the powder bed, two parallel guide rails arranged on the bottom plate and a sliding block arranged on the two parallel guide rails are arranged in the auxiliary chamber. The isolating device comprises an upper stainless steel isolating plate, a lower stainless steel isolating plate and a steel belt arranged between the upper stainless steel isolating plate and the lower stainless steel isolating plate. The scraper assembly is connected with the sliding block through a transition frame, and the transition frame is arranged on the steel belt in a sliding manner. The sealed type selective laser melting equipment is simple in structure, and powder can be prevented from contaminating the guide rails; and adverse influences caused in the powder laying process are reduced, and the stability of the equipment is guaranteed.
Description
Technical field
The present invention relates to 3D printer technology field, be specifically related to a kind of sealed selective laser fusion apparatus.
Background technology
Along with the development of science and technology, 3D printer engenders in the visual field of people.At present, 3D printing technique is the process manufacturing entity component based on powder bed process.Selective laser melting and SLM utilize high energy beam laser direct deposite metal powder.SLM converts the three-dimensional geometry body of complexity to two dimensional surface manufacture, manufacturing cost not only depends on the complexity of part, also has the equipment of finished parts, the method that this equipment is roughly applied is as follows: power spreading device is layer overlay metal dust on powder cylinder, laser beam under control of the computer, according to profiled member cross sectional shape, carries out selective scanning to powder, make the powder bonding in scanning area or fusing, obtain the monolayer shape of profiled member; Then powder cylinder declines the distance of a thickness, and power spreading device spreads powder again, proceeds the shaping of lower one deck; So successively superpose, the final metal parts obtaining geometry in particular.
In part Rapid Prototyping Process, forming room needs guide rail to drive Pu Fen mechanism to carry out paving powder together, but the temperature needed due to powder bonding or fusing in forming room is higher, part powder can be kicked up and is full of whole forming room, and the paving powder stroke of power spreading device is larger, the floating powder which results in forming room can enter guide rail, thus pollution guide rail, like this not only greatly reduce the precision of guide rail, the long-time wearing and tearing by powder will cause the damage of whole rail plate, rapid shaping is caused to stop, wasting manpower and material resources and financial resources.
Summary of the invention
For solving the problems of the technologies described above, we have proposed the sealed selective laser fusion apparatus that a kind of structure is simple, be easy to maintenance, it not only can effectively prevent floating powder from entering guide rail pollution guide rail, also protects equipment, ensure that the quality of paving powder.
For achieving the above object, technical scheme of the present invention is as follows:
A kind of sealed selective laser fusion apparatus, it comprises powder bed, be located at the powder cylinder under described powder bed, described powder cylinder comprises moulding cylinder and supplies powder cylinder, also comprise the seal chamber cover be located on described powder bed, forming room is provided with in described seal chamber cover, ancillary chamber and the spacer assembly be located between described forming room and ancillary chamber, described forming room is positioned at directly over described powder cylinder, doctor assemblies is provided with in it, the base plate be arranged on powder bed is provided with in described ancillary chamber, be arranged on two closed slides on base plate, be arranged on the slide block on two closed slides, described spacer assembly comprises, lower stainless steel separator and being located at, steel band between lower stainless steel separator, described doctor assemblies is connected with described slide block by transition frame, described transition frame is slidably located on described steel band.
Preferably, described seal chamber cover is square, be made up of upper plate, left plate, right plate, front door and Rear Door, described Rear Door is fixedly connected with described upper plate, left and right side plate by screw, one end of described front door is hinged on described left or right side plate, the other end is fixed on the described right side or left plate by lockset, described front door is also installed a preventing laser glass vision panel.
Preferably, the outer surface of described Rear Door is also evenly provided with multiple handle.
Preferably, all also sealing strip is installed on described front door periphery and on the seal chamber cover being positioned at Rear Door peripheral position.
Preferably, described upper plate also establishes a laser window, and in described laser window, protective lens is installed.
Preferably, multiple filtrating smoke dust mouth is all offered on described base plate He on right plate.
Preferably, described powder bed is positioned at described forming room and evenly offers multiple protection gas entrance.
Preferably, the outer surface being positioned at the left and right side plate of described forming room is also provided with illuminating lamp.
Preferably, the inner surface of described seal chamber cover is also provided with the warming plate of inner fill insulant material.
Preferably, also comprise one and be arranged on the motor for driving guide rail movement on the lower surface of described powder bed.
Pass through technique scheme, the invention has the beneficial effects as follows: adopt sealed selective laser fusion apparatus of the present invention, powder cylinder is installed below powder bed, returns powder cylinder, the transmission mechanism of auxiliary powder is installed above powder bed, in Pu Fen mechanism and transmission mechanism outside, seal chamber cover is installed, what seal chamber cover was complete is arranged on powder bed, only leave front door and Rear Door, under the door state of pass, front door lock does not leave gap front door closure completely, Rear Door is assemblied on back door and is screwed, and can be in complete sealing state.Inner at seal chamber cover, can be divided into forming room and ancillary chamber, this two Room has steel band, upper stainless steel separator and upper stainless steel separator to isolate, and prevents the powder of forming room from infiltrating the ancillary chamber of rear side, the guide rail in ancillary chamber, Timing Belt can be prevented so contaminated.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the structural representation of the front door open mode of a kind of sealed selective laser fusion apparatus disclosed in the embodiment of the present invention 1;
Fig. 2 is the top view of a kind of sealed selective laser fusion apparatus disclosed in the embodiment of the present invention 1;
Fig. 3 is the structural representation of the handstand of a kind of sealed selective laser fusion apparatus disclosed in the embodiment of the present invention 1.
Wherein Reference numeral is as follows:
1, powder bed; 2, powder cylinder; 3, seal chamber cover; 4, forming room; 5, ancillary chamber; 6, doctor assemblies; 7, guide rail; 8, slide block; 9, upper stainless steel separator; 10, lower stainless steel separator; 11, steel band; 12, transition frame; 13, upper plate; 14, left plate; 15, right plate; 16, front door; 17, Rear Door; 18, lockset; 19, form; 20, handle; 21, sealing strip; 22, window; 23, illuminating lamp; 24, warming plate; 25, moulding cylinder 26, motor; 27, for powder cylinder; 28, base plate; .
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
Below in conjunction with schematic diagram, the specific embodiment of the present invention is described in further detail.
Embodiment 1.
As Fig. 1, Fig. 2, shown in Fig. 3, a kind of sealed selective laser fusion apparatus, it comprises powder bed 1, be located at the powder cylinder 2 under described powder bed 1, described powder cylinder 2 comprises moulding cylinder 25 and supplies powder cylinder 27, also comprise the seal chamber cover 3 be located on described powder bed 1, forming room 4 is provided with in described seal chamber cover 3, ancillary chamber 5 and the spacer assembly be located between described forming room 4 and ancillary chamber 5, described forming room 4 is positioned at directly over described powder cylinder 2, the base plate 28 be arranged on powder bed is provided with in described ancillary chamber 5, be arranged on two closed slides 7 on base plate 28, be arranged on the slide block 8 on two closed slides 7, described spacer assembly comprises stainless steel separator 9, lower stainless steel separator 10 and be located at stainless steel separator 9, steel band 11 between lower stainless steel separator 10, described doctor assemblies 6 is connected with described slide block 8 by transition frame 12, described transition frame 12 is slidably located on described steel band 11, forming room 4 and ancillary chamber 5 steel band 11 separate, can effectively avoid dust pollution guide rail, Timing Belt.
Continue as shown in Figure 1, Figure 2 and Figure 3, described seal chamber cover 3 is square, be made up of upper plate 13, left plate 14, right plate 15, front door 16 and Rear Door 17, described Rear Door 17 is fixedly connected with described upper plate 13, left plate 14, right plate 15 by screw, one end of described front door 16 is hinged on described left plate 14 or right plate 15, front door 16 other end is fixed on described right plate 15 or left plate 14 by lockset 18, described front door 16 is also installed a preventing laser glass vision panel 19.
Continue as shown in Figure 3, the outer surface of described Rear Door 17 to be also evenly provided with multiple handle 20, be easy to safeguard.
Continue as shown in Figure 1, on described front door 16 periphery and on the seal chamber cover 3 being positioned at Rear Door 17 peripheral position, sealing strip 21 to be all also installed, to guarantee that whole space is in sealing state completely.
Continue as shown in Figure 1, described upper plate 13 also to be established a laser window 22, and in described laser window 22, protective lens is installed.
Continue as shown in Figure 1, on described base plate 28 He on right plate 15, all to offer multiple filtrating smoke dust mouth 29, for the indoor flue dust of filtering shaping, avoid extraneous smoke contamination forming room.
Continue as shown in Figure 2, described powder bed 1 is positioned at described forming room 4 and evenly offers multiple protection gas entrance 30, for the protection of the working environment of forming room.
Continue as shown in Figure 1, the outer surface being positioned at the left plate 14 of described forming room 4, right plate 15 to be also provided with illuminating lamp 23, be easy to observe.
Continue as shown in Figure 2, the inner surface of described seal chamber cover 3 to be also provided with the warming plate 24 of inner fill insulant material.
Continue as shown in Figure 1, Figure 3, the side of described powder cylinder 2 also installs a powder cylinder 25, for reclaiming unnecessary powder.
Continue as shown in Figure 3, also comprise one and be arranged on the motor 26 for driving guide rail movement on the lower surface of described powder bed 1, motor is placed on closed chamber outside, can avoids burning out because of electromotor high-temperature.
The present invention adopts above sealed selective laser fusion apparatus, inner at seal chamber cover, forming room and ancillary chamber can be divided into, this two Room has steel band, upper stainless steel separator and upper stainless steel separator to isolate, prevent the powder of forming room from infiltrating the ancillary chamber of rear side, the guide rail in ancillary chamber, Timing Belt can be prevented so contaminated.
Above-described is only the preferred embodiment of the present invention, it should be pointed out that for the person of ordinary skill of the art, and without departing from the concept of the premise of the invention, can also make some distortion and improvement, these all belong to protection scope of the present invention.
Claims (10)
1. a sealed selective laser fusion apparatus, it comprises powder bed, be located at the powder cylinder under described powder bed, described powder cylinder comprises moulding cylinder and supplies powder cylinder, it is characterized in that, also comprise the seal chamber cover be located on described powder bed, forming room is provided with in described seal chamber cover, ancillary chamber and the spacer assembly be located between described forming room and ancillary chamber, described forming room is positioned at directly over described powder cylinder, doctor assemblies is provided with in it, the base plate be arranged on powder bed is provided with in described ancillary chamber, be arranged on two closed slides on base plate, be arranged on the slide block on two closed slides, described spacer assembly comprises, lower stainless steel separator and being located at, steel band between lower stainless steel separator, described doctor assemblies is connected with described slide block by transition frame, described transition frame is slidably located on described steel band.
2. the sealed selective laser fusion apparatus of one according to claim 1, it is characterized in that, described seal chamber cover is square, be made up of upper plate, left plate, right plate, front door and Rear Door, described Rear Door is fixedly connected with described upper plate, left and right side plate by screw, one end of described front door is hinged on described left or right side plate, and the other end is fixed on the described right side or left plate by lockset, described front door is also installed a preventing laser glass vision panel.
3. the sealed selective laser fusion apparatus of one according to claim 2, is characterized in that, the outer surface of described Rear Door is also evenly provided with multiple handle.
4. the sealed selective laser fusion apparatus of one according to claim 2, is characterized in that, is all also provided with sealing strip on described front door periphery and on the seal chamber cover being positioned at Rear Door peripheral position.
5. the sealed selective laser fusion apparatus of one according to claim 2, is characterized in that, described upper plate also establishes a laser window, and be provided with protective lens in described laser window.
6. the sealed selective laser fusion apparatus of one according to claim 1, is characterized in that, all offers multiple filtrating smoke dust mouth on described base plate He on right plate.
7. the sealed selective laser fusion apparatus of one according to claim 1, is characterized in that, described powder bed is positioned at described forming room and evenly offers multiple protection gas entrance.
8. the sealed selective laser fusion apparatus of one according to claim 1, is characterized in that, the outer surface being positioned at the left and right side plate of described forming room is also provided with illuminating lamp.
9. the sealed selective laser fusion apparatus of one according to claim 1, is characterized in that, the inner surface of described seal chamber cover is also provided with the warming plate of inner fill insulant material.
10. the sealed selective laser fusion apparatus of one according to claim 1, is characterized in that, also comprises one and is arranged on the motor for driving guide rail movement on the lower surface of described powder bed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201510520004.7A CN105014976B (en) | 2015-08-24 | 2015-08-24 | A kind of sealed selective laser fusion apparatus |
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| CN201510520004.7A CN105014976B (en) | 2015-08-24 | 2015-08-24 | A kind of sealed selective laser fusion apparatus |
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| CN105014976A true CN105014976A (en) | 2015-11-04 |
| CN105014976B CN105014976B (en) | 2018-12-18 |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105312572A (en) * | 2015-11-17 | 2016-02-10 | 北京科技大学 | Molten iron alloy low-gravity 3D printing method and device |
| CN105345000A (en) * | 2015-11-26 | 2016-02-24 | 北京隆源自动成型系统有限公司 | Selective laser melting and forming equipment and volume-adjustable forming room thereof |
| CN105413330A (en) * | 2015-12-31 | 2016-03-23 | 中国航空工业集团公司北京航空制造工程研究所 | Smoke treatment device for selected laser melting additive manufacturing equipment |
| CN106626394A (en) * | 2016-08-31 | 2017-05-10 | 重庆工商大学 | 3D printer supporting device |
| CN108079904A (en) * | 2017-12-20 | 2018-05-29 | 北京卫星环境工程研究所 | Seal the device for supplying and replenishing method of ablation reaction chamber no particulate matter |
| CN108602269A (en) * | 2016-05-12 | 2018-09-28 | 惠普发展公司有限责任合伙企业 | Contaminant barriers |
| CN110181054A (en) * | 2019-07-01 | 2019-08-30 | 广州大学 | A kind of power spreading device for SLM type metal 3D printer |
| CN111819064A (en) * | 2018-04-30 | 2020-10-23 | 惠普发展公司，有限责任合伙企业 | Build material heater with baffle |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050186538A1 (en) * | 2004-02-25 | 2005-08-25 | Bego Medical Ag | Method and apparatus for making products by sintering and/or melting |
| CN101362202A (en) * | 2008-09-12 | 2009-02-11 | 西北有色金属研究院 | Powder sending and laying device for quickly shaping device |
| CN102453906A (en) * | 2010-10-20 | 2012-05-16 | 中国科学院力学研究所 | Multifunctional gas protection atmosphere case for laser cladding formation |
| US20130015609A1 (en) * | 2012-07-18 | 2013-01-17 | Pratt & Whitney Rocketdyne, Inc. | Functionally graded additive manufacturing with in situ heat treatment |
| CN103709737A (en) * | 2013-12-05 | 2014-04-09 | 吴江中瑞机电科技有限公司 | High-molecular composite powder material for SLS and preparation method therefor |
| CN203817391U (en) * | 2014-05-22 | 2014-09-10 | 广东奥基德信机电有限公司 | 3D laser printing equipment |
| CN104289711A (en) * | 2014-05-22 | 2015-01-21 | 广东奥基德信机电有限公司 | Laser 3D printing equipment and printing method |
| CN204194798U (en) * | 2014-10-24 | 2015-03-11 | 华南理工大学 | A kind of alternating expression guide rail dust guard |
| CN204869693U (en) * | 2015-08-24 | 2015-12-16 | 吴江中瑞机电科技有限公司 | Sealed selectivity laser melting equipment |
-
2015
- 2015-08-24 CN CN201510520004.7A patent/CN105014976B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050186538A1 (en) * | 2004-02-25 | 2005-08-25 | Bego Medical Ag | Method and apparatus for making products by sintering and/or melting |
| CN101362202A (en) * | 2008-09-12 | 2009-02-11 | 西北有色金属研究院 | Powder sending and laying device for quickly shaping device |
| CN102453906A (en) * | 2010-10-20 | 2012-05-16 | 中国科学院力学研究所 | Multifunctional gas protection atmosphere case for laser cladding formation |
| US20130015609A1 (en) * | 2012-07-18 | 2013-01-17 | Pratt & Whitney Rocketdyne, Inc. | Functionally graded additive manufacturing with in situ heat treatment |
| CN103709737A (en) * | 2013-12-05 | 2014-04-09 | 吴江中瑞机电科技有限公司 | High-molecular composite powder material for SLS and preparation method therefor |
| CN203817391U (en) * | 2014-05-22 | 2014-09-10 | 广东奥基德信机电有限公司 | 3D laser printing equipment |
| CN104289711A (en) * | 2014-05-22 | 2015-01-21 | 广东奥基德信机电有限公司 | Laser 3D printing equipment and printing method |
| CN204194798U (en) * | 2014-10-24 | 2015-03-11 | 华南理工大学 | A kind of alternating expression guide rail dust guard |
| CN204869693U (en) * | 2015-08-24 | 2015-12-16 | 吴江中瑞机电科技有限公司 | Sealed selectivity laser melting equipment |
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105312572A (en) * | 2015-11-17 | 2016-02-10 | 北京科技大学 | Molten iron alloy low-gravity 3D printing method and device |
| CN105312572B (en) * | 2015-11-17 | 2017-05-17 | 北京科技大学 | Molten iron alloy low-gravity 3D printing method and device |
| CN105345000A (en) * | 2015-11-26 | 2016-02-24 | 北京隆源自动成型系统有限公司 | Selective laser melting and forming equipment and volume-adjustable forming room thereof |
| CN105345000B (en) * | 2015-11-26 | 2018-04-10 | 北京隆源自动成型系统有限公司 | A kind of selective laser melting (SLM) molding equipment and its adjustable volume section forming room |
| CN105413330A (en) * | 2015-12-31 | 2016-03-23 | 中国航空工业集团公司北京航空制造工程研究所 | Smoke treatment device for selected laser melting additive manufacturing equipment |
| CN105413330B (en) * | 2015-12-31 | 2017-06-27 | 中国航空工业集团公司北京航空制造工程研究所 | Melt the soot processing device of increasing material manufacturing equipment in selective laser |
| CN108602269A (en) * | 2016-05-12 | 2018-09-28 | 惠普发展公司有限责任合伙企业 | Contaminant barriers |
| US11376791B2 (en) | 2016-05-12 | 2022-07-05 | Hewlett-Packard Development Company, L.P. | Contaminant barrier |
| CN106626394A (en) * | 2016-08-31 | 2017-05-10 | 重庆工商大学 | 3D printer supporting device |
| CN108079904A (en) * | 2017-12-20 | 2018-05-29 | 北京卫星环境工程研究所 | Seal the device for supplying and replenishing method of ablation reaction chamber no particulate matter |
| CN111819064A (en) * | 2018-04-30 | 2020-10-23 | 惠普发展公司，有限责任合伙企业 | Build material heater with baffle |
| CN111819064B (en) * | 2018-04-30 | 2022-07-05 | 惠普发展公司，有限责任合伙企业 | Build material heater with baffle |
| US11858215B2 (en) | 2018-04-30 | 2024-01-02 | Hewlett-Packard Development Company, L.P. | Build material heaters with baffles |
| CN110181054A (en) * | 2019-07-01 | 2019-08-30 | 广州大学 | A kind of power spreading device for SLM type metal 3D printer |
| CN110181054B (en) * | 2019-07-01 | 2022-03-04 | 广州大学 | Powder paving device for SLM type metal 3D printer |
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Address after: 215223 Tongan Xi Road, Wujiang District, Suzhou, Jiangsu 13 Applicant after: Suzhou Zhong Rui Zhi Chuang 3D Polytron Technologies Inc Address before: 215223 Tongan Xi Road, Wujiang District, Suzhou, Jiangsu 13 Applicant before: Z Rapid Technologies Co., Ltd. |
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