CN204799942U - Laser sintering 3D printer - Google Patents
Laser sintering 3D printer Download PDFInfo
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- CN204799942U CN204799942U CN201520553719.8U CN201520553719U CN204799942U CN 204799942 U CN204799942 U CN 204799942U CN 201520553719 U CN201520553719 U CN 201520553719U CN 204799942 U CN204799942 U CN 204799942U
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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 a laser sintering 3D printer aims at providing the laser sintering 3D printer that the printing precision is high. It includes the frame, sets up control system, protection gas system, negative pressure system, printing molding system and laser instrument in the frame, print molding system and including installing the base in the frame, install the shaping bottom plate on the base, install shop's powder device and quantitative powder feeder unit on the shaping bottom plate, install on the base and seal the cover body of spreading powder device and quantitative powder feeder unit to and install the elevating gear on the base, the ration powder feeder unit is located the one end of spreading the powder device, spreading the powder device and including that two sets set up ball mechanism on the shaping bottom plate, two sets set up and are used for removing complex linear guide with the ball nut on the shaping bottom plate, fixedly set up the servo motor on the shaping bottom plate, two dust covers of installing on the shaping bottom plate, both ends is connected with the ball nut respectively and with the whitewashed scraper blade of shaping bottom contact's shop.
Description
Technical field
The utility model relates to 3D printing device technical field, especially relates to a kind of laser sintered 3D printer.
Background technology
Laser sintered is a layering processing and manufacturing technology, and the prerequisite of this technology is that the three-dimensional data of object can be used.Then three-dimensional description is converted into a whole set of section, and each section describes the part cross-section determining height.Laser sintered machine by these section accumulations are in layer got up, thus obtains required object.At every one deck, laser energy is used to powder smelting.By means of scanning means, laser energy is "printed" on powder bed, this creates the terminal the layer of a solidification, and this layer becomes a part for completion object subsequently.Face continuation is processed on the first layer again for lower one deck, until whole process completes.3D printer is also known as three-dimensional printer, a kind of accumulation manufacturing technology, i.e. a kind of machine of RP technique, it is based on a kind of mathematical model file, use special wax material, powdery metal or plastics etc. can jointing material, manufacture three-dimensional object by the jointing material printed from level to level.3D printer and the maximum difference of conventional printer are that " ink " that it uses is out and out raw material, and the form of stacking thin layer has varied, can be used for the medium wide variety printed, from various plastics to metal, pottery and rubber-like material.Existing 3D printer comprises frame, is arranged at the control system in frame, protection gas system, negative pressure system, printing shaping system and laser instrument; Printing shaping system is as the core component of 3D printer, it all plays conclusive effect to the quality of product and cost for powder precision and printing precision, therefore be necessary to promote the precision of printing shaping system, the uniformity of paving powder and paving powder speed, to improve the speed of printing and to guarantee the satisfactory quality of final printed product.
Utility model content
The utility model overcomes shortcoming of the prior art, provides a kind of high for powder precision, the good and laser sintered 3D printer that printing precision is high of paving powder uniformity.
In order to solve the problems of the technologies described above, the utility model is achieved through the following technical solutions:
A kind of laser sintered 3D printer, comprises frame, is arranged at the control system in frame, protection gas system, negative pressure system, printing shaping system and laser instrument; Described printing shaping system comprises the base be installed in frame, be installed on the forming bottom plate on base, be installed on the power spreading device on forming bottom plate and quantitatively supplying powder device, be installed on cover body base also being closed power spreading device and quantitatively supplying powder device, and be installed on the lowering or hoisting gear on base lower surface; Described quantitatively supplying powder device is positioned at one end of power spreading device;
Described power spreading device comprises two covers and is symmetricly set in ball screw framework on forming bottom plate, two covers are symmetrical to be fixedly installed on forming bottom plate and parallel with ball wire rod mechanism for moving with ball nut the line slideway coordinated, be fixedly installed on forming bottom plate for driving the servomotor of ball screw framework, two are installed on for covering the dust cover of two cover ball screw frameworks respectively on forming bottom plate, and two ends connect with two ball nuts and the paving powder scraper plate contacted with forming bottom plate respectively;
Described quantitatively supplying powder device comprises two symmetries and is installed on mounting base on forming bottom plate, two are installed on the LOAD CELLS on mounting base respectively, two ends are installed on the filler bin on LOAD CELLS respectively by installation component, be fixedly installed in the first pump chamber of filler bin lower end, level is installed on the first screw shaft in the first pump chamber, be installed on the first motor the first pump chamber outer wall driving connection first screw shaft, be fixedly installed in the first pump chamber lower end and the first pump chamber to be interconnected and lower end arranges the second pump chamber of outlet, level is installed on the second screw shaft in the second pump chamber, be installed on the second motor the second pump chamber outer wall driving connection second screw shaft,
Described lowering or hoisting gear comprises for holding metal dust, open upper end and the warehouse be fixedly connected with base, close the base plate of warehouse lower end, being arranged in warehouse can along the piston plate of the vertical movement of warehouse, the type plate of piston plate upper end is installed on by multiple adjustable column, piston plate lower end is vertically installed on and through the ball screw of base plate by top chock, be set in the feed screw nut be fixedly connected with on ball screw and with base plate, the push pedal of ball screw lower end is installed on by step, two are symmetrical arranged, through base plate and two ends are fixedly connected with the lead of piston plate and push pedal respectively, to be set on lead and to be fixedly connected with end fairlead with push pedal, be installed on the motor mounting rack of push pedal lower end, be installed on the stepper motor that motor mounting rack is connected with ball leading screw driving, vertically be installed on the grating scale of base plate lower end, and to be fixedly connected with motor mounting rack and the grating scale slide block be slidably matched with grating scale.
Preferably, the outer edge surface that described piston plate coordinates with warehouse is provided with O RunddichtringO.
Preferably, described motor mounting rack comprises the vertical rod be connected with push pedal, and is fixedly connected on vertical rod lower end for installing the motor mounting plate of stepper motor.
Preferably, described stepper motor is connected with ball screw by shaft coupling.
Preferably, described grating scale slide block is fixedly connected with motor mounting rack by connection bracket.
Preferably, described grating scale is fixedly connected with base plate by grating scale installing plate.
Preferably, described servomotor drives ball screw framework by synchronous pulley mechanism; Described synchronous pulley mechanism comprises the driving wheel be installed on servo motor output shaft, is installed on the driven pulley of screw mandrel end, engagement driving wheel and the Timing Belt of driven pulley, and for the regulating wheel of tensioning Timing Belt.
Preferably, described servomotor is installed on forming bottom plate by fixed mount.
Preferably, the two ends of described paving powder scraper plate are connected with feed screw nut by link, and described paving powder scraper plate is played screw be connected with link by plug, and fill in beat on screw and be set with spring.
Preferably, described dust cover two ends arrange detachable end.
Compared with prior art, the utility model tool has the following advantages:
(1) the utility model supplies the weight of powder accurately high at every turn, and paving powder uniformity is good and paving powder speed is fast, effectively can improve the speed of printing and guarantee that print quality meets the requirements.
(2) the utility model coordinates grating positioning by screw body, effectively improves laser sintered 3D printer elevating mechanism traveling comfort and precision, promotes the quality printed greatly.The utility model structure is simple simultaneously, is convenient to dismounting and maintenance, is applicable to multiple 3D printer and uses, have larger economic worth.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment 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 embodiments more of the present utility model, 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 structural representation of the present utility model.
The sectional view of printing shaping system in Fig. 2 the utility model.
Fig. 3 is the structural representation of power spreading device in the utility model.
Fig. 4 is that figure cuts open in the office of overlooking of Fig. 3.
Fig. 5 is that figure is cutd open depending on office in a left side of Fig. 3.
Fig. 6 is the enlarged drawing of part A in Fig. 3.
Fig. 7 is the structural representation of quantitatively supplying powder device in the utility model.
Fig. 8 is that the master of Fig. 7 cuts open figure depending on office.
Fig. 9 is the structural representation of lowering or hoisting gear in the utility model.
Figure 10 is the sectional view of B-B in Fig. 9.
Figure 11 is the stereogram of lowering or hoisting gear in the utility model.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technical scheme in the utility model embodiment, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not paying the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
Laser sintered 3D printer shown in Fig. 1-11, comprises frame 81, is arranged at the control system 82 in frame 81, protection gas system 83, negative pressure system 84, printing shaping system and laser instrument 85; Described printing shaping system comprises the base 1 be installed in frame 81, be installed on the forming bottom plate 2 on base 1, be installed on the power spreading device 3 on forming bottom plate 2 and quantitatively supplying powder device 4, be installed on the cover body 5 base 1 also being closed power spreading device 3 and quantitatively supplying powder device 4, and be installed on the lowering or hoisting gear 6 on base 1 lower surface; Described quantitatively supplying powder device 4 is positioned at one end of power spreading device 3;
Described power spreading device 3 comprises two covers and is symmetricly set in ball screw framework 10 on forming bottom plate 2, two covers are symmetrical to be fixedly installed on forming bottom plate 2 and parallel with ball wire rod mechanism 10 for moving with ball nut the line slideway 11 coordinated, be fixedly installed on forming bottom plate 2 for driving the servomotor 12 of ball screw framework 10, two are installed on for covering the dust cover 13 of two cover ball screw frameworks 10 respectively on forming bottom plate 2, and two ends connect with two ball nuts and the paving powder scraper plate 14 contacted with forming bottom plate 2 respectively;
Described quantitatively supplying powder device 4 comprises two symmetries and is installed on mounting base 31 on forming bottom plate 2, two are installed on the LOAD CELLS 32 on mounting base 31 respectively, two ends are installed on the filler bin 36 on LOAD CELLS 32 respectively by installation component 33, be fixedly installed in the first pump chamber 37 of filler bin 36 lower end, level is installed on the first screw shaft 38 in the first pump chamber 37, be installed on the first motor 39 the first pump chamber 37 outer wall driving connection first screw shaft 38, be fixedly installed in the first pump chamber 37 lower end and the first pump chamber 37 to be interconnected and lower end arranges the second pump chamber 40 of outlet, level is installed on the second screw shaft 42 in the second pump chamber 40, be installed on the second motor 43 the second pump chamber 40 outer wall driving connection second screw shaft 42.
Described lowering or hoisting gear 6 comprises for holding metal dust, open upper end and the warehouse 50 be fixedly connected with base 1, close the base plate 61 of warehouse 50 lower end, being arranged at can along the piston plate 55 of the vertical movement of warehouse 50 in warehouse 50, the type plate 51 of piston plate 55 upper end is installed on by multiple adjustable column 54, piston plate 55 lower end is vertically installed on and through the ball screw 59 of base plate 61 by top chock 57, be set in the feed screw nut 62 be fixedly connected with on ball screw 59 and with base plate 61, the push pedal 63 of ball screw 59 lower end is installed on by step 65, two are symmetrical arranged, through base plate 61 and two ends are fixedly connected with the lead 58 of piston plate 55 and push pedal 63 respectively, be set in be fixedly connected with on lead 58 and with push pedal 63 and hold fairlead 60, be installed on the motor mounting rack 64 of push pedal 63 lower end, be installed on the stepper motor 52 that motor mounting rack 64 is in transmission connection with ball screw 59, vertically be installed on the grating scale 70 of base plate 61 lower end, and to be fixedly connected with motor mounting rack 64 and the grating scale slide block 71 be slidably matched with grating scale 70.
Wherein, described servomotor 12 drives ball screw framework 10 by synchronous pulley mechanism; Described synchronous pulley mechanism comprises the driving wheel 16 be installed on servomotor 12 output shaft, is installed on the driven pulley 17 of screw mandrel end, engagement driving wheel 16 and the Timing Belt 18 of driven pulley 17, and for the regulating wheel 19 of tensioning Timing Belt 18.
Wherein, described servomotor 12 is installed on forming bottom plate 2 by fixed mount 15.The two ends of described paving powder scraper plate 14 are connected with feed screw nut by link 20, and described paving powder scraper plate 14 is played screw 21 be connected with link 20 by being filled in, and fill in beat on screw 21 and be set with spring 22.Described dust cover 13 two ends arrange detachable end 23.Described installation component 33 comprises the erection support 34 be connected with LOAD CELLS 32, and is connected and installed the hopper support frame 35 of bearing 34 and filler bin 36.The asbestos pad 44 of damping is provided with between described first pump chamber 37 and the second pump chamber 40.
Wherein, the outer edge surface that described piston plate 55 coordinates with warehouse 50 is provided with O RunddichtringO 56.Described motor mounting rack 64 comprises the vertical rod 66 be connected with push pedal 63, and is fixedly connected on vertical rod 66 lower end for installing the motor mounting plate 68 of stepper motor 52.Described stepper motor 52 is connected with ball screw 59 by shaft coupling 53.Described grating scale slide block 71 is fixedly connected with motor mounting rack 64 by connection bracket 72.Described grating scale 70 is fixedly connected with base plate 62 by grating scale installing plate 69.
During use, the particle powder of quantitatively supplying powder device is stirred by the first screw shaft and powder is uniformly distributed inside filler bin, and through the quantitative sub-material of the second screw shaft.Filler bin is assemblied in above forming bottom plate by parts such as LOAD CELLSs.LOAD CELLS can feed back the weight of each blanking.Power spreading device by the lead screw shaft rotary motion of driven by servomotor two groups of ball screw frameworks, and is converted to the reciprocating motion of fore-and-aft direction through feed screw nut.The slide block of line slideway is connected with the nut of screw mechanism, guarantees the accurate of front-rear reciprocation movement.Paving powder scraper plate is connected with feed screw nut, by the pretension effect of spring, paving powder scraper plate and forming bottom plate is remained valid laminating.Lowering or hoisting gear controls lifting precision by high-precision ball screw and grating scale, and trueness error is ± 0.05 μm.During use, warehouse is fixed on the base of 3D printer, base plate is bolted on warehouse, feed screw nut is arranged on base plate, high-precision ball screw engages with feed screw nut, stepper motor drives ball screw to rotate by shaft coupling, because ball nut is fixed, so ball screw moves up, thus up moved by top chock promotion piston plate, step back-up roller ballscrew lower end, be fixed in push pedal simultaneously, thus ball screw drive push pedal synchronously moves, lead is fixed together by bolt and piston plate and push pedal and follows ball screw synchronizing moving, led by fairlead simultaneously, ensure the vertical precision of ball screw lifting and corresponding rigidity.Grating scale slide block can slidably reciprocate on grating scale, controls lifting precision by grating scale.Adjustable column is screwed on piston plate by fine thread, and type plate is fixed on adjustable column, realizes the leveling of type plate by rotating adjustable column.Metal dust is evenly distributed on type plate, and O RunddichtringO is used for preventing metal dust from revealing, and can prevent vacuum leak under airtight environment.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
Claims (10)
1. a laser sintered 3D printer, comprises frame, is arranged at the control system in frame, protection gas system, negative pressure system, printing shaping system and laser instrument; It is characterized in that: described printing shaping system comprises the base be installed in frame, be installed on the forming bottom plate on base, be installed on the power spreading device on forming bottom plate and quantitatively supplying powder device, be installed on cover body base also being closed power spreading device and quantitatively supplying powder device, and be installed on the lowering or hoisting gear on base lower surface; Described quantitatively supplying powder device is positioned at one end of power spreading device;
Described power spreading device comprises two covers and is symmetricly set in ball screw framework on forming bottom plate, two covers are symmetrical to be fixedly installed on forming bottom plate and parallel with ball wire rod mechanism for moving with ball nut the line slideway coordinated, be fixedly installed on forming bottom plate for driving the servomotor of ball screw framework, two are installed on for covering the dust cover of two cover ball screw frameworks respectively on forming bottom plate, and two ends connect with two ball nuts and the paving powder scraper plate contacted with forming bottom plate respectively;
Described quantitatively supplying powder device comprises two symmetries and is installed on mounting base on forming bottom plate, two are installed on the LOAD CELLS on mounting base respectively, two ends are installed on the filler bin on LOAD CELLS respectively by installation component, be fixedly installed in the first pump chamber of filler bin lower end, level is installed on the first screw shaft in the first pump chamber, be installed on the first motor the first pump chamber outer wall driving connection first screw shaft, be fixedly installed in the first pump chamber lower end and the first pump chamber to be interconnected and lower end arranges the second pump chamber of outlet, level is installed on the second screw shaft in the second pump chamber, be installed on the second motor the second pump chamber outer wall driving connection second screw shaft,
Described lowering or hoisting gear comprises for holding metal dust, open upper end and the warehouse be fixedly connected with base, close the base plate of warehouse lower end, being arranged in warehouse can along the piston plate of the vertical movement of warehouse, the type plate of piston plate upper end is installed on by multiple adjustable column, piston plate lower end is vertically installed on and through the ball screw of base plate by top chock, be set in the feed screw nut be fixedly connected with on ball screw and with base plate, the push pedal of ball screw lower end is installed on by step, two are symmetrical arranged, through base plate and two ends are fixedly connected with the lead of piston plate and push pedal respectively, to be set on lead and to be fixedly connected with end fairlead with push pedal, be installed on the motor mounting rack of push pedal lower end, be installed on the stepper motor that motor mounting rack is connected with ball leading screw driving, vertically be installed on the grating scale of base plate lower end, and to be fixedly connected with motor mounting rack and the grating scale slide block be slidably matched with grating scale.
2. laser sintered 3D printer according to claim 1, is characterized in that: the outer edge surface that described piston plate coordinates with warehouse is provided with O RunddichtringO.
3. laser sintered 3D printer according to claim 1, is characterized in that: described motor mounting rack comprises the vertical rod be connected with push pedal, and is fixedly connected on vertical rod lower end for installing the motor mounting plate of stepper motor.
4. laser sintered 3D printer according to claim 1, is characterized in that: described stepper motor is connected with ball screw by shaft coupling.
5. laser sintered 3D printer according to claim 1, is characterized in that: described grating scale slide block is fixedly connected with motor mounting rack by connection bracket.
6. laser sintered 3D printer according to claim 1, is characterized in that: described grating scale is fixedly connected with base plate by grating scale installing plate.
7. laser sintered 3D printer according to claim 1, is characterized in that: described servomotor drives ball screw framework by synchronous pulley mechanism; Described synchronous pulley mechanism comprises the driving wheel be installed on servo motor output shaft, is installed on the driven pulley of screw mandrel end, engagement driving wheel and the Timing Belt of driven pulley, and for the regulating wheel of tensioning Timing Belt.
8. laser sintered 3D printer according to claim 1, is characterized in that: described servomotor is installed on forming bottom plate by fixed mount.
9. laser sintered 3D printer according to claim 1, is characterized in that: the two ends of described paving powder scraper plate are connected with feed screw nut by link, and described paving powder scraper plate is played screw by plug and is connected with link, and fills in beat on screw and be set with spring.
10. laser sintered 3D printer according to claim 1, is characterized in that: described dust cover two ends arrange detachable end.
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| CN201520553719.8U CN204799942U (en) | 2015-07-28 | 2015-07-28 | Laser sintering 3D printer |
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| CN201520553719.8U CN204799942U (en) | 2015-07-28 | 2015-07-28 | Laser sintering 3D printer |
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Cited By (23)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105397088A (en) * | 2015-12-16 | 2016-03-16 | 吉林大学 | Laser sintering and 3DP comprehensive 3D printing processing system and printing method |
| CN105903965A (en) * | 2016-06-28 | 2016-08-31 | 华南理工大学 | Modularized treatment device and method for selective laser melting powder of precious metal |
| CN105945282A (en) * | 2016-05-23 | 2016-09-21 | 苏州云植医学技术有限公司 | Special selective laser melting equipment for directly manufacturing metal orthopedic implant |
| CN106180714A (en) * | 2016-08-24 | 2016-12-07 | 中国航天科技集团公司长征机械厂 | Downstriker powder feed system |
| CN107187050A (en) * | 2017-05-25 | 2017-09-22 | 安徽恒利增材制造科技有限公司 | A kind of shaped platform of double feed cylinder 3d printers |
| CN107584627A (en) * | 2017-09-30 | 2018-01-16 | 大族激光科技产业集团股份有限公司 | Increasing material manufacturing equipment |
| CN107876767A (en) * | 2017-11-27 | 2018-04-06 | 安徽拓宝增材制造科技有限公司 | A kind of selective laser sintering and moulding device |
| WO2018090188A1 (en) * | 2016-11-15 | 2018-05-24 | 东台精机股份有限公司 | Powder spreader having automatic powder recovery |
| CN108177334A (en) * | 2018-02-23 | 2018-06-19 | 深圳市普伦特科技有限公司 | A kind of 3D printer |
| CN108405859A (en) * | 2018-04-25 | 2018-08-17 | 金华市盛志科技服务有限公司 | A kind of multi link formula stepping power metallurgy equipment |
| CN109228319A (en) * | 2018-10-23 | 2019-01-18 | 重庆塞领科技有限公司 | A kind of 3D printer and its working method |
| CN109808176A (en) * | 2019-03-18 | 2019-05-28 | 北京工业大学 | A kind of powder-type 3D printer powder supply mechanism based on insulated bowl |
| 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 |
| CN110181052A (en) * | 2019-06-28 | 2019-08-30 | 陕西科技大学 | A kind of moulding cylinder and its application method and 3D printer |
| CN110340362A (en) * | 2019-07-31 | 2019-10-18 | 厦门五星珑科技有限公司 | A kind of dust-proof mechanism of metal 3D printer |
| CN110464188A (en) * | 2019-08-26 | 2019-11-19 | 珠海格力电器股份有限公司 | A kind of synchronous belt can provide displacement information and transmission system |
| CN110549607A (en) * | 2018-06-04 | 2019-12-10 | 陕西恒通智能机器有限公司 | Laser sintering 3D printer |
| CN110549603A (en) * | 2018-06-04 | 2019-12-10 | 陕西恒通智能机器有限公司 | laser sintering forming machine |
| CN110549617A (en) * | 2018-06-04 | 2019-12-10 | 陕西恒通智能机器有限公司 | Laser sintering printing equipment |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105397088A (en) * | 2015-12-16 | 2016-03-16 | 吉林大学 | Laser sintering and 3DP comprehensive 3D printing processing system and printing method |
| CN105945282A (en) * | 2016-05-23 | 2016-09-21 | 苏州云植医学技术有限公司 | Special selective laser melting equipment for directly manufacturing metal orthopedic implant |
| CN105945282B (en) * | 2016-05-23 | 2019-04-02 | 苏州云植医学技术有限公司 | Special selective laser melting equipment for directly manufacturing metal orthopedic implant |
| CN105903965A (en) * | 2016-06-28 | 2016-08-31 | 华南理工大学 | Modularized treatment device and method for selective laser melting powder of precious metal |
| CN106180714A (en) * | 2016-08-24 | 2016-12-07 | 中国航天科技集团公司长征机械厂 | Downstriker powder feed system |
| WO2018090188A1 (en) * | 2016-11-15 | 2018-05-24 | 东台精机股份有限公司 | Powder spreader having automatic powder recovery |
| US10688723B2 (en) | 2016-11-15 | 2020-06-23 | Tongtai Machine & Tool Co., Ltd. | Powder spreader having automatic powder recovery |
| CN107187050A (en) * | 2017-05-25 | 2017-09-22 | 安徽恒利增材制造科技有限公司 | A kind of shaped platform of double feed cylinder 3d printers |
| CN107584627A (en) * | 2017-09-30 | 2018-01-16 | 大族激光科技产业集团股份有限公司 | Increasing material manufacturing equipment |
| CN107876767A (en) * | 2017-11-27 | 2018-04-06 | 安徽拓宝增材制造科技有限公司 | A kind of selective laser sintering and moulding device |
| CN108177334A (en) * | 2018-02-23 | 2018-06-19 | 深圳市普伦特科技有限公司 | A kind of 3D printer |
| CN108405859A (en) * | 2018-04-25 | 2018-08-17 | 金华市盛志科技服务有限公司 | A kind of multi link formula stepping power metallurgy equipment |
| CN110549617B (en) * | 2018-06-04 | 2022-01-07 | 四川交大至信教育科技有限公司 | Laser sintering printing equipment |
| CN110549602B (en) * | 2018-06-04 | 2022-04-12 | 陕西恒通智能机器有限公司 | Laser sintering 3D printer |
| CN110549603B (en) * | 2018-06-04 | 2022-03-18 | 陕西恒通智能机器有限公司 | Laser sintering forming machine |
| CN110549607B (en) * | 2018-06-04 | 2022-04-22 | 陕西恒通智能机器有限公司 | Laser sintering 3D printer |
| CN110549611B (en) * | 2018-06-04 | 2022-01-07 | 四川交大至信教育科技有限公司 | Laser sintering 3D printer |
| CN110549607A (en) * | 2018-06-04 | 2019-12-10 | 陕西恒通智能机器有限公司 | Laser sintering 3D printer |
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