CN104999079A - Rapid powder spreading device for 3D printer - Google Patents

Rapid powder spreading device for 3D printer Download PDF

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Publication number
CN104999079A
CN104999079A CN201510519455.9A CN201510519455A CN104999079A CN 104999079 A CN104999079 A CN 104999079A CN 201510519455 A CN201510519455 A CN 201510519455A CN 104999079 A CN104999079 A CN 104999079A
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China
Prior art keywords
synchronizing wheel
motor
powder
powder bed
transmission mechanism
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Application number
CN201510519455.9A
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Chinese (zh)
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CN104999079B (en
Inventor
周宏志
周洪波
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Suzhou Zhong Rui Zhi Chuang 3D Polytron Technologies Inc
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Z RAPID TECHNOLOGIES Co Ltd
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Publication of CN104999079A publication Critical patent/CN104999079A/en
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Abstract

The invention discloses a rapid powder spreading device for a 3D printer. The device comprises a powder bed, a powder cylinder mounted on the lower surface of the powder bed, a bottom plate arranged on the upper surface of the powder bed, a powder spreading mechanism arranged on the bottom plate, a first transmission mechanism matched with the powder spreading mechanism, a motor arranged on the lower surface of the powder bed and adjacent to the powder cylinder as well as a second transmission mechanism matched with the motor, wherein the powder spreading mechanism comprises two parallel guide rails, a sliding block mounted on the two parallel guide rails as well as a scraper assembly mounted on the sliding block through a transition frame and a scraper rest, the motor drives the second transmission mechanism, the second transmission mechanism drives the first transmission mechanism, and then the first transmission mechanism drives the powder spreading mechanism. The device is simple in structure and convenient to machine, assemble and maintain and effectively guarantees the working environment of the motor, so that the machining precision of powder spreading can be guaranteed.

Description

The quick power spreading device of a kind of 3D printer
Technical field
The present invention relates to 3D printing technique field, be specifically related to the quick power spreading device of a kind of 3D printer.
Background technology
3D prints and also claims rapid shaping, namely data and raw material is put in 3D printer, controls, by product printing in layer, finally to form finished product by computer program.Particularly utilize metal dust to manufacture rapid shaping technique and the selective laser melting (SLM) of metal function part, it is high that this technique has formed precision, and comprehensive mechanical property is excellent, directly can meet practical engineering application.The key index of selective laser melting comprises density, precision and surface roughness, and spreads opaque amount and produce vital impact for density and surface roughness.
In existing SLM equipment, the structure of power spreading device is comparatively complicated, the motor of its design is arranged on above powder bed, because environment temperature is too high and environment dust is excessive, greatly have impact on stability and the service life of motor, and change, safeguard get up more loaded down with trivial details, and the installing plate of the scraper guide rail of some SLM equipment and powder bed separate, be difficult to so accurately ensure that doctor assemblies is parallel with powder bed, and the cantilever of doctor assemblies is long, reduce the stability of doctor assemblies, and then uniformity when being difficult to accurately to ensure the auxiliary powder of doctor assemblies and uniformity.
Summary of the invention
For solving the problems of the technologies described above, we have proposed the quick power spreading device of a kind of 3D printer, it is light structure not only, processing, assembling, easy to maintenance, and can available protecting motor, then accurately can ensure that doctor assemblies is parallel with powder bed.
For achieving the above object, technical scheme of the present invention is as follows:
The quick power spreading device of a kind of 3D printer, it comprises powder bed and is arranged on the powder cylinder on powder bed lower surface, also comprise the base plate be located on described powder bed upper surface, be located at the Pu Fen mechanism on described base plate, the first transmission mechanism matched with described Pu Fen mechanism, be located at the motor be disposed adjacent on described powder bed lower surface and with described powder cylinder and the second transmission mechanism matched with described motor, described Pu Fen mechanism comprises two closed slides, be arranged on the slide block on described two closed slides and be arranged on the doctor assemblies on described slide block by transition frame and knife rest, described first transmission mechanism comprises the synchronizing wheel one laying respectively at two closed slide two ends, synchronizing wheel two and connect described synchronizing wheel one, the Timing Belt one of two, described Timing Belt one is mutually meshing with described slide block, described second transmission mechanism comprises the synchronizing wheel three be connected with described motor, be arranged on the synchronizing wheel four immediately below described synchronizing wheel one and connect described synchronizing wheel three, the Timing Belt two of four, described synchronizing wheel four is connected with described synchronizing wheel one with the power transmission shaft of base plate by running through described powder bed, described motor is fixed on described powder bed lower surface by motor mounting plate and motor distensible plate.
Preferably, the side of described powder cylinder also establishes a receipts powder cylinder.
By technique scheme, the present invention has following beneficial effect:
1. the present invention is scraping the design of electrical motor of powder below powder bed, avoids motor and works in hot environment, and electrical machmary maintenance is convenient, is also beneficial to the Seal Design above powder bed;
2. the whole Pu Fen mechanism level designed above powder bed of the present invention is installed on powder bed, accurately can ensure that scraper is parallel with powder bed, also plays the effect of guide rail protection.
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 quick power spreading device of a kind of 3D printer disclosed in the embodiment of the present invention 1;
Fig. 2 is the electric motor mounting structure schematic diagram of the quick power spreading device of a kind of 3D printer disclosed in the embodiment of the present invention 1.
In figure: 1, powder bed; 2, powder cylinder; 3, base plate; 4, motor; 5, closed slide; 6, slide block; 7, transition frame; 8, knife rest; 9, synchronizing wheel one; 10, synchronizing wheel two; 11, Timing Belt one; 12, synchronizing wheel three; 13, synchronizing wheel four; 14, Timing Belt two; 15, power transmission shaft; 16, motor mounting plate; 17, motor distensible plate; 18, receive powder cylinder.
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, shown in Fig. 2, the quick power spreading device of a kind of 3D printer, it powder cylinder 2 comprising powder bed 1 and be arranged on powder bed 1 lower surface, also comprise the base plate 3 be located on described powder bed 1 upper surface, be located at the Pu Fen mechanism on described base plate 3, the first transmission mechanism matched with described Pu Fen mechanism, be located at the motor 4 be disposed adjacent on described powder bed 1 lower surface and with described powder cylinder 2 and the second transmission mechanism matched with described motor 4, described Pu Fen mechanism comprises two closed slides 5, be arranged on the slide block 6 on described two closed slides 5 and be arranged on the doctor assemblies 7 on described slide block 6 by transition frame 7 and knife rest 8, described first transmission mechanism comprises the synchronizing wheel 1 laying respectively at two closed slide 5 two ends, synchronizing wheel 2 10 and connect described synchronizing wheel 1, the Timing Belt 1 of synchronizing wheel 2 10, described Timing Belt 1 is mutually meshing with described slide block 6, described second transmission mechanism comprises the synchronizing wheel 3 12 be connected with described motor 4, be arranged on the synchronizing wheel 4 13 immediately below described synchronizing wheel 1 and connect described synchronizing wheel 3 12, the Timing Belt 2 14 of synchronizing wheel 4 13, described synchronizing wheel 4 13 is connected with described synchronizing wheel 1 with the power transmission shaft 15 of base plate 3 by running through described powder bed 1, described motor 4 is fixed on described powder bed 1 lower surface by motor mounting plate 16 and motor distensible plate 17.
Continue as shown in Figure 1, the side of described powder cylinder 2 also establishes a receipts powder cylinder 18.
The operation principle of the quick power spreading device of a kind of 3D printer as above is adopted to be: driven by motor synchronizing wheel 3 12 rotates, synchronizing wheel 3 12 drives synchronizing wheel 4 13 to rotate, synchronizing wheel 4 13 drives synchronizing wheel 1 to rotate, synchronizing wheel 1 rotates and drives Timing Belt 1 to move, thus drive Pu Fen mechanism to do rectilinear motion, complete the action of paving powder.
The quick power spreading device of a kind of 3D printer more than adopted, total is light and handy, easy to process, assembling is simple, and motor is arranged on the below of powder bed, avoid motor to work in hot environment, effectively ensured the stability of machine operation, also have Pu Fen mechanism level to be arranged on powder bed, also accurately can ensure the parallel of scraper and powder bed, more can ensure the density of processing.
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 (2)

1. the quick power spreading device of 3D printer, it comprises powder bed and is arranged on the powder cylinder on powder bed lower surface, it is characterized in that, also comprise the base plate be located on described powder bed upper surface, be located at the Pu Fen mechanism on described base plate, the first transmission mechanism matched with described Pu Fen mechanism, be located at the motor be disposed adjacent on described powder bed lower surface and with described powder cylinder and the second transmission mechanism matched with described motor, described Pu Fen mechanism comprises two closed slides, be arranged on the slide block on described two closed slides and be arranged on the doctor assemblies on described slide block by transition frame and knife rest, described first transmission mechanism comprises the synchronizing wheel one laying respectively at two closed slide two ends, synchronizing wheel two and connect described synchronizing wheel one, the Timing Belt one of two, described Timing Belt one is mutually meshing with described slide block, described second transmission mechanism comprises the synchronizing wheel three be connected with described motor, be arranged on the synchronizing wheel four immediately below described synchronizing wheel one and connect described synchronizing wheel three, the Timing Belt two of four, described synchronizing wheel four is connected with described synchronizing wheel one with the power transmission shaft of base plate by running through described powder bed, described motor is fixed on described powder bed lower surface by motor mounting plate and motor distensible plate.
2. the quick power spreading device of a kind of 3D printer according to claim 1, is characterized in that, the side of described powder cylinder also establishes a receipts powder cylinder.
CN201510519455.9A 2015-08-24 2015-08-24 A kind of quick power spreading device of 3D printer Active CN104999079B (en)

Priority Applications (1)

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CN201510519455.9A CN104999079B (en) 2015-08-24 2015-08-24 A kind of quick power spreading device of 3D printer

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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105642900A (en) * 2016-03-28 2016-06-08 西安交通大学 Electrostatic surface laying layer system manufactured through powder bed additive
CN106273519A (en) * 2016-08-24 2017-01-04 古恒威 A kind of 3D printer easily is for powder structure
CN106853528A (en) * 2017-01-10 2017-06-16 东北林业大学 A kind of selective laser sintering modularization powder case system
CN107774994A (en) * 2016-08-27 2018-03-09 北京易加三维科技有限公司 Automatically adjust the method that metal 3D printer supplies powder amount
CN107774995A (en) * 2016-08-31 2018-03-09 江苏永年激光成形技术有限公司 Powdering system
CN110181053A (en) * 2019-07-01 2019-08-30 广州大学 A kind of powder feeding and spreading device for SLM type metal 3D printer
CN110181054A (en) * 2019-07-01 2019-08-30 广州大学 A kind of power spreading device for SLM type metal 3D printer
US11433480B2 (en) 2018-03-23 2022-09-06 Lawrence Livermore National Security, Llc Additive manufacturing power map to mitigate overhang structure

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201157904Y (en) * 2008-02-14 2008-12-03 何德生 Quantitative powder feeding device of laser powder sintering rapid forming machine
US20140065194A1 (en) * 2012-09-05 2014-03-06 Aprecia Pharmaceuticals Company Three-dimensional Printing System and Equipment Assembly
CN103658646A (en) * 2013-12-10 2014-03-26 华南理工大学 Two-way powder spreading device of SLM equipment and powder spreading method
CN204035564U (en) * 2014-04-03 2014-12-24 上海航天设备制造总厂 A kind of power spreading device for fast changeable roll type 3D printer
CN204867395U (en) * 2015-08-24 2015-12-16 吴江中瑞机电科技有限公司 Whitewashed device is spread fast to 3D printer

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201157904Y (en) * 2008-02-14 2008-12-03 何德生 Quantitative powder feeding device of laser powder sintering rapid forming machine
US20140065194A1 (en) * 2012-09-05 2014-03-06 Aprecia Pharmaceuticals Company Three-dimensional Printing System and Equipment Assembly
CN103658646A (en) * 2013-12-10 2014-03-26 华南理工大学 Two-way powder spreading device of SLM equipment and powder spreading method
CN204035564U (en) * 2014-04-03 2014-12-24 上海航天设备制造总厂 A kind of power spreading device for fast changeable roll type 3D printer
CN204867395U (en) * 2015-08-24 2015-12-16 吴江中瑞机电科技有限公司 Whitewashed device is spread fast to 3D printer

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105642900A (en) * 2016-03-28 2016-06-08 西安交通大学 Electrostatic surface laying layer system manufactured through powder bed additive
CN106273519A (en) * 2016-08-24 2017-01-04 古恒威 A kind of 3D printer easily is for powder structure
CN107774994A (en) * 2016-08-27 2018-03-09 北京易加三维科技有限公司 Automatically adjust the method that metal 3D printer supplies powder amount
CN107774995A (en) * 2016-08-31 2018-03-09 江苏永年激光成形技术有限公司 Powdering system
CN106853528A (en) * 2017-01-10 2017-06-16 东北林业大学 A kind of selective laser sintering modularization powder case system
US11433480B2 (en) 2018-03-23 2022-09-06 Lawrence Livermore National Security, Llc Additive manufacturing power map to mitigate overhang structure
CN110181053A (en) * 2019-07-01 2019-08-30 广州大学 A kind of powder feeding and spreading device for SLM type metal 3D printer
CN110181054A (en) * 2019-07-01 2019-08-30 广州大学 A kind of power spreading device for SLM type metal 3D printer
CN110181053B (en) * 2019-07-01 2022-02-01 广州大学 Powder feeding and 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

Patentee after: Suzhou Zhong Rui Zhi Chuang 3D Polytron Technologies Inc

Address before: 215223 Tongan Xi Road, Wujiang District, Suzhou, Jiangsu 13

Patentee before: Z Rapid Technologies Co., Ltd.

CP01 Change in the name or title of a patent holder