CN204621074U - A kind of large scale that is applied to increases the two-way automatic power spreading mechanism that material manufactures forming machine - Google Patents

A kind of large scale that is applied to increases the two-way automatic power spreading mechanism that material manufactures forming machine Download PDF

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Publication number
CN204621074U
CN204621074U CN201520307701.XU CN201520307701U CN204621074U CN 204621074 U CN204621074 U CN 204621074U CN 201520307701 U CN201520307701 U CN 201520307701U CN 204621074 U CN204621074 U CN 204621074U
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powder
power spreading
scale
increases
forming machine
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Expired - Fee Related
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CN201520307701.XU
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杨来侠
杨志凌
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Xian University of Science and Technology
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Xian University of Science and Technology
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00Technologies related to metal processing
    • Y02P10/25Process efficiency

Abstract

The utility model relates to a kind of large scale that is applied to and increases the two-way automatic power spreading mechanism that material manufactures forming machine, comprise automatic powder feeding device, power spreading device, Auxiliary Track device and be positioned at the left recycling powder device on moulding cylinder both sides and right recycling powder device, automatic powder feeding device is arranged on the top of left recycling powder device, and power spreading device is arranged on above moulding cylinder working face by Auxiliary Track device and also can moves around along Auxiliary Track device.Of the present utility model rational in infrastructure, easy to operate, paving powder efficiency is high, and powder supplies amount is little, and powder bed uniformity is good and change powder and do not affect work and carry out, and can be used for the work of simple powder compacting or complex gradient forming material powder.

Description

A kind of large scale that is applied to increases the two-way automatic power spreading mechanism that material manufactures forming machine
Technical field
The utility model belongs to increasing material and manufactures shaping equipment technical field, relate to a kind of precinct laser sintering (SLS), precinct laser fusion (SLM), electron-beam melting (EBM) and 3 D-printing shaping (3DP) automatic power spreading device, particularly a kind of large scale that is applied to increases the automatic power spreading mechanism that material manufactures forming machine.
Background technology
Based on the increasing material manufacturing technology of powder, as selective laser sintering (SLS), three-dimensional printing technology (SLS), precinct laser fusion (SLM), electron-beam melting (EBM) powder paving cover the key technology that mode is rapid shaping, on the volume of final shaping speed, precision, equipment and the impact of cost very large.
What existing selective laser sintering and moulding machine employing was following supplies powder mode, namely be arranged in parallel moulding cylinder and powder feeding cylinder, thermal source according to model information to the dusty material constituency end of scan after, moulding cylinder declines a thickness, to rise a thickness for powder cylinder, push material to moulding cylinder from feed cylinder by powder-laying roller more afterwards, paving powder terminates return-to-zero position and completes paving powder.This Pu Fen mechanism is comparatively simple, and kinetic stability is good.But this mode increases the volume in the integral level direction of equipment, and powder-laying roller complete once spread powder need motion one back and forth, reduce shaping efficiency.Because powder-laying roller can not good unbound powder powder material in this external paving powder process, powder can be caused to scatter in the both sides of roller perpendicular to paving powder direction, and there is powder accumulation phenomenon at paving powder stroke two ends, cause that single filling amount is large, the waste of powder, especially when adding man-hour to the large scale product of more than 1m, the size of equipment can become huge, and the change of roll size also with amount of powder is greatly changeable, also can become redundancy for powder amount thereupon, very uneconomical.
Except above-mentioned defect, the problem that prior art also exists is, when shaping composite gradient material, need to suspend process, change for powder cylinder and the powder reclaimed in cylinder, such molding time can be elongated along with the replacing of powder, and shaping efficiency is reduced greatly simultaneously.
Utility model content
The purpose of this utility model is to solve prior art Problems existing, provide a kind of rational in infrastructure, easy to operate, paving powder efficiency is high, powder supplies amount is little, powder bed uniformity is good and change that powder do not affect that whole work carries out be applied to the two-way automatic power spreading mechanism that large scale increases material manufacture forming machine.
In order to achieve the above object, the utility model takes following technical solution:
A kind of large scale that is applied to increases the two-way automatic power spreading mechanism that material manufactures forming machine, comprise automatic powder feeding device, power spreading device, Auxiliary Track device and be positioned at the left recycling powder device on moulding cylinder both sides and right recycling powder device, automatic powder feeding device is arranged on the top of left recycling powder device, and power spreading device is arranged on above moulding cylinder working face by Auxiliary Track device and also can moves around along Auxiliary Track device.
The above-mentioned large scale that is applied to increases in the two-way automatic power spreading mechanism of material manufacture forming machine, described power spreading device has two hoppers be arranged side by side, the bottom of hopper is circular arc and is provided with the micro-mouth of powder delivery, hopper inside is provided with quantitative powder feeding ratchet, powder preheating table and powder blender, is provided with powder compacting roller and powder strike-off stick in hopper outer lower portion.
The above-mentioned large scale that is applied to increases in the two-way automatic power spreading mechanism of material manufacture forming machine, and the ratchet of described quantitative powder feeding ratchet circular arc that is most advanced and sophisticated and feed hopper bottom is tangent, to guarantee that powder can not spill from gap.
The above-mentioned large scale that is applied to increases in the two-way automatic power spreading mechanism of material manufacture forming machine, and the slit inclination angle of feed hopper bottom powder delivery micro-mouthful should be greater than the angle of repose of moulding material powder, guarantees that hopper leaks powder smooth.
Above-mentioned be applied to large scale increase material manufacture forming machine two-way automatic power spreading mechanism in, the cylindrical of powder compacting roller is made up of ceramic material, inside be stainless steel material to increase rigidity, above powder compacting roller, be equipped with cleaner.
The above-mentioned large scale that is applied to increases in the two-way automatic power spreading mechanism of material manufacture forming machine, spring adjustment mechanism is equipped with at powder strike-off stick and powder compacting roller both sides, wherein the bottom of powder strike-off stick exceeds H distance than the bottom tangent of powder compacting roller, and H is the amount of compaction of powder.
The above-mentioned large scale that is applied to increases in the two-way automatic power spreading mechanism of material manufacture forming machine, and automatic powder feeding device comprises the funnel being provided with amount of powder detecting sensor in two, is provided with flow controller, leaks powder switch and vibrate powder sieve in funnel lower end.
In real work, the automatic powder feeding device being arranged in machine one end quantitatively supplements power spreading device, power spreading device under the drive of Auxiliary Track device from setting in motion above left recycling powder device, powder quantitative falling and spread under the rotation of powder feeding ratchet simultaneously overlays on powder face, powder strike-off stick strikes off powder, and the roller of compacting simultaneously utilizes to roll and carries out compacting to powder; After above pawnshop powder plant running to right recycling powder device, the thermal source of equipment or shower nozzle start to carry out surface sweeping or jet binder to powder surface; By powder preheating table, preheating is carried out to powder in whole process, by the stirring action of powder blender, powder is mixed again, and reduce the reunion of molecule powder.
Carry out composite gradient material according to this automatic power spreading mechanism and add man-hour, only need the powder changing one of them funnel of automatic powder feeding device, and make it to carry out quantitative powder feeding to power spreading device, collect the powder in left and right recycling powder device simultaneously.The moment of the behavior and certain one deck powder scanning machining carries out simultaneously, additionally can not increase and change the powder time, effectively improve shaping efficiency.
Compared with prior art, the utility model tool has the following advantages:
One, the utility model is under the prerequisite ensureing formed precision, effectively can improve paving powder efficiency, reduce the supply of powder, reduces the reunion of powder and increases the uniformity of powder bed; This Pu Fen mechanism is carrying out preheating for while powder to powder in addition, reduces the preheating time of powder and the inhomogeneities of powder preheating;
Two, the utility model is when making gradient composites, dust feeder can be utilized to the quantitative interpolation of power spreading device, multiple different powder is spread fast and covers, paving coated with and laser scanning or shower nozzle scanning while change the powder of powder feeding hopper and accumulator tank, change the carrying out that powder does not affect whole work, improve shaping efficiency;
Three, utilize the utility model power spreading device to carry out decreasing when spreading powder work the stroke of paving powder, substantially increase paving powder efficiency, shaping efficiency is improved greatly; The accumulating amount of roller front end powder diminishes, the speed that roller self rotates can diminish, also reduce the power of motor and decrease the supply of powder, improve the utilization rate of powder, and the requisite space that reasonably make use of between laser instrument and powder bed, efficiently reduce the size of machinery equipment, reduce the cost of machinery equipment.
Accompanying drawing explanation
Fig. 1 is overall structure schematic diagram of the present utility model.
Fig. 2 is the sectional view of power spreading device in the utility model.
In accompanying drawing, the title of each number designation respectively: the left recycling powder device of 1-, 2-workbench, 3-power spreading device, 4-automatic powder feeding device, 5-moulding cylinder, the right recycling powder device of 6-, 7-Auxiliary Track device, 8-powder compacting roller, 9-powder strike-off stick, 10-roller cleaner, the quantitative powder feeding ratchet of 11-, 12-powder preheating table, 13-hopper, 14-powder blender; A-compacted powder, b-strikes off powder, and c-does not strike off powder, the molded region of d-.
Detailed description of the invention
See accompanying drawing 1, two-way automatic power spreading mechanism described in the utility model comprises left recycling powder device 1, power spreading device 3, automatic powder feeding device 4, right recycling powder device 6 and Auxiliary Track device 7.Left recycling powder device 1 and right recycling powder device 6 are arranged in the both sides of moulding cylinder 3, for reclaiming excessive powder.Automatic powder feeding device 4 is arranged on the top of left recycling powder device 1, and it comprises the funnel being provided with amount of powder detecting sensor in two, and be provided with flow controller in funnel lower end, leak powder switch and vibrate powder sieve, vibration grit number is 160 orders.Power spreading device 3 is arranged on above moulding cylinder working face by Auxiliary Track device 7 and also can moves around along Auxiliary Track device 7.
In this two-way automatic power spreading mechanism, the structure of power spreading device as shown in Figure 2, comprises powder compacting roller 8, powder strike-off stick 9, roller cleaner 10, the quantitatively component such as powder feeding ratchet 11, powder preheating table 12, hopper 13, powder blender 14 and roller motor, ratchet motor, hopper bearing.Two hoppers be arranged side by side 13 are fixed on the top of powder compacting roller 8 and powder strike-off stick 9, the bottom of hopper 13 is circular arc and is provided with the micro-mouth of powder delivery, the slit inclination angle of its powder delivery micro-mouthful should be greater than the angle of repose of moulding material powder, smooth to guarantee that hopper leaks powder.All arrange in two hoppers 13 be arranged side by side by quantitative powder feeding ratchet 11, powder preheating table 12 and powder blender 14, wherein powder blender 14 and powder preheating table 12 all carry out work in shaping all period processes, be respectively used to stir and preheating powder, the generation of reuniting to avoid powder and shift to an earlier date preheating to powder; Quantitative powder feeding ratchet 11 carries out work under the drive of roller motor and ratchet motor, and the circular arc bottom the most advanced and sophisticated and hopper 13 of the ratchet of quantitative powder feeding ratchet 11 is tangent, and it is surperficial that powder is sent to paving powder by quantitative powder feeding ratchet 11 from the micro-mouth of the powder delivery of hopper 13.Powder compacting roller 8 cylindrical is ceramic material, and the inner stainless steel that adopts is to increase the rigidity of roller, and above powder compacting roller 8, be equipped with cleaner 10, the material of cleaner 10 is the flexible material not producing electrostatic with ceramic friction.The material of powder strike-off stick 9 is the aluminium alloy of 5mm, and can ensure that moulding cylinder cross section is large, scraper plate cantilever beam is indeformable, ensures that front/rear end is indeformable when paving covers metal dust.Spring adjustment mechanism is equipped with at powder strike-off stick 9 and powder compacting roller 8 both sides, wherein the bottom of powder strike-off stick 9 exceeds H distance than the bottom tangent of powder compacting roller 8, H is the amount of compaction of powder, can be regulated during work according to different dusty materials by spring adjustment mechanism to powder strike-off stick 9 and powder compacting roller 8.
The job step adopting the utility model to carry out simple powder compacting is:
1) spread powder equipment back to zero, two hoppers of automatic powder feeding device 4 pairs of power spreading devices 3 quantitatively mend powder, and powder preheating table 12 and powder blender 14 work simultaneously, process powder;
2) under the drive of Auxiliary Track device 7, the whole device of power spreading device 3 moves along working face, right recycling powder device 6 is moved to from left recycling powder device 1, in motion process, quantitative powder feeding ratchet 11 in the hopper of right side rotates and makes powder quantitatively drop on powder face, is carried out the compacting of powder after the powder strike-off stick 9 on right side strikes off powder simultaneously by powder compacting roller 8;
3) thermal source scanning or shower nozzle jet binder;
4) under the drive of Auxiliary Track device 7, the whole device of power spreading device 3 moves along working face, power spreading device 3 moves to left recycling powder device 1 from right recycling powder device 6, in motion process, quantitative powder feeding ratchet 11 in the hopper of left side rotates and makes powder quantitatively drop on powder face, is carried out the compacting of powder after the powder strike-off stick 9 in left side strikes off powder simultaneously by powder compacting roller 8;
5) laser scans, repeats step 2) ~ 4), until product completes.
The job step adopting the utility model to carry out complex gradient forming material powder is:
1) spread powder equipment back to zero, two hoppers of automatic powder feeding device 4 pairs of power spreading devices 3 quantitatively mend powder, and powder preheating table 12 and powder blender 14 work simultaneously, process powder;
2) under the drive of Auxiliary Track device 7, the whole device of power spreading device 3 moves along working face, right recycling powder device 6 is moved to from left recycling powder device 1, in motion process, quantitative powder feeding ratchet 11 in the hopper of right side rotates and makes powder quantitatively drop on powder face, is carried out the compacting of powder after the powder strike-off stick 9 on right side strikes off powder by powder compacting roller 8;
3) thermal source scanning or shower nozzle jet binder;
4) under the drive of Auxiliary Track device 7, the whole device of power spreading device 3 moves along working face, power spreading device 3 moves to left recycling powder device 1 from right recycling powder device 6, in motion process, quantitative powder feeding ratchet 11 in the hopper of left side rotates and makes powder quantitatively drop on powder face, is carried out the compacting of powder after the powder strike-off stick 9 in left side strikes off powder by powder compacting roller 8;
5) thermal source scanning, repeat step 2) ~ 4), the amount of powder of one deck is supplemented respectively owing to mending disposable two the parallel funnels 13 to power spreading device of powder action, so when certain layer lower one deck or below the second layer be other materials powder compacting time, in current layer process, the powder in automatic powder feeder unit 4 is changed in advance, when power spreading device 3 moves to automatic powder feeder unit 4, quantitative powder feeding ratchet 11 constantly rotates, and is removed by the powder in two funnels 13 in power spreading device 3; Automatic powder feeder unit 4 pairs of power spreading devices 3 supplement new powder, lower one deck be other materials dusty material is changed to the funnel 13 on the right side of pay-off, the funnel 13 in left side still supplements raw material; Below the second layer then dusty material is changed to the funnel 13 on the left of dust feeder, the funnel 13 on right side supplements raw material;
6) 2 are proceeded) ~ 4), carry out step 5 when needing the powder more renewed);
7) constantly 2 are repeated) ~ 6), until product processing is completely.

Claims (7)

1. one kind is applied to the two-way automatic power spreading mechanism that large scale increases material manufacture forming machine, it is characterized in that: comprise automatic powder feeding device (4), power spreading device (3), Auxiliary Track device (7) and be positioned at left recycling powder device (1) and the right recycling powder device (6) on moulding cylinder (3) both sides, automatic powder feeding device (4) is arranged on the top of left recycling powder device (1), and power spreading device (3) is arranged on above moulding cylinder working face by Auxiliary Track device (7) and also can moves around along Auxiliary Track device (7).
2. the large scale that is applied to according to claim 1 increases the two-way automatic power spreading mechanism that material manufactures forming machine, it is characterized in that: described power spreading device (3) has two hoppers be arranged side by side (13), the bottom of hopper (13) is circular arc and is provided with the micro-mouth of powder delivery, hopper (13) inside is provided with quantitative powder feeding ratchet (11), powder preheating table (12) and powder blender (14), is provided with powder compacting roller (8) and powder strike-off stick (9) in hopper (13) outer lower portion.
3. the large scale that is applied to according to claim 2 increases the two-way automatic power spreading mechanism that material manufactures forming machine, it is characterized in that: the ratchet of described quantitative powder feeding ratchet (11) circular arc that is most advanced and sophisticated and hopper (13) bottom is tangent.
4. the large scale that is applied to according to claim 2 increases the two-way automatic power spreading mechanism that material manufactures forming machine, it is characterized in that: the slit inclination angle of hopper (13) bottom powder delivery micro-mouthful is greater than the angle of repose of moulding material powder.
5. the large scale that is applied to according to claim 2 increases the two-way automatic power spreading mechanism that material manufactures forming machine, it is characterized in that: the cylindrical of powder compacting roller (8) is made up of ceramic material, inside is stainless steel material, is equipped with cleaner (10) in powder compacting roller (8) top.
6. the large scale that is applied to according to claim 2 increases the two-way automatic power spreading mechanism that material manufactures forming machine, it is characterized in that: be equipped with spring adjustment mechanism at powder strike-off stick (9) and powder compacting roller (8) both sides, wherein the bottom of powder strike-off stick (9) exceeds H distance than the bottom tangent of powder compacting roller (8), and H is the amount of compaction of powder.
7. the large scale that is applied to according to claim 1 increases the two-way automatic power spreading mechanism that material manufactures forming machine, it is characterized in that: automatic powder feeding device (4) comprises the funnel being provided with amount of powder detecting sensor in two, be provided with flow controller in funnel lower end, leak powder switch and vibrate powder sieve.
CN201520307701.XU 2015-05-13 2015-05-13 A kind of large scale that is applied to increases the two-way automatic power spreading mechanism that material manufactures forming machine Expired - Fee Related CN204621074U (en)

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Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105562689A (en) * 2015-11-26 2016-05-11 阳江市五金刀剪产业技术研究院 Bothway powder paving powder based additive material manufacturing device and powder paving method thereof
CN106001564A (en) * 2016-06-28 2016-10-12 中北大学 Crawler-type upper powder supplying and two-way powder spreading device for selective laser sintering (SLS)
CN106141186A (en) * 2016-08-18 2016-11-23 广东汉邦激光科技有限公司 Power spreading device and there is the printer of this power spreading device
CN106424730A (en) * 2016-10-25 2017-02-22 华南理工大学 Centrifugal supplying and vibrating compaction device and method for powder for 3D printing
CN106623924A (en) * 2016-12-07 2017-05-10 中北大学 Method for forming functionally graded material on basis of selection laser melted powder metallurgy
CN106975749A (en) * 2017-04-27 2017-07-25 华中科技大学 A kind of adaptive powdering method of powder bed based on increasing material manufacturing
CN106984817A (en) * 2017-05-28 2017-07-28 安徽科元三维技术有限公司 Power spreading device for 3D printer
CN108176905A (en) * 2017-12-27 2018-06-19 哈尔滨工业大学 Dusty material selectivity electric spark sintering increasing material manufacturing method and device
CN108607992A (en) * 2018-05-23 2018-10-02 哈尔滨工业大学 Microbeam electric arc selectivity consolidation increasing material manufacturing method based on preset metal powder
CN108788150A (en) * 2018-06-28 2018-11-13 广西富乐科技有限责任公司 A kind of selective laser thawing metal 3D printing preheating power spreading device
CN109226762A (en) * 2018-11-14 2019-01-18 浙江工贸职业技术学院 A kind of metal 3D printing equipment
CN112172151A (en) * 2020-10-13 2021-01-05 深圳市未来工场科技有限公司 Automatic powder preparation device based on SLS technology 3D printer

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105562689A (en) * 2015-11-26 2016-05-11 阳江市五金刀剪产业技术研究院 Bothway powder paving powder based additive material manufacturing device and powder paving method thereof
CN106001564A (en) * 2016-06-28 2016-10-12 中北大学 Crawler-type upper powder supplying and two-way powder spreading device for selective laser sintering (SLS)
CN106141186A (en) * 2016-08-18 2016-11-23 广东汉邦激光科技有限公司 Power spreading device and there is the printer of this power spreading device
CN106141186B (en) * 2016-08-18 2018-05-01 广东汉邦激光科技有限公司 Power spreading device and the printer with the power spreading device
CN106424730B (en) * 2016-10-25 2018-02-27 华南理工大学 A kind of powder centrifugation supply of 3D printing, vibration ramming device and method
CN106424730A (en) * 2016-10-25 2017-02-22 华南理工大学 Centrifugal supplying and vibrating compaction device and method for powder for 3D printing
CN106623924A (en) * 2016-12-07 2017-05-10 中北大学 Method for forming functionally graded material on basis of selection laser melted powder metallurgy
CN106975749A (en) * 2017-04-27 2017-07-25 华中科技大学 A kind of adaptive powdering method of powder bed based on increasing material manufacturing
CN106975749B (en) * 2017-04-27 2019-05-10 华中科技大学 A kind of adaptive powdering method of powder bed based on increasing material manufacturing
CN106984817A (en) * 2017-05-28 2017-07-28 安徽科元三维技术有限公司 Power spreading device for 3D printer
CN106984817B (en) * 2017-05-28 2018-11-30 安徽科元三维技术有限公司 Power spreading device for 3D printer
CN108176905A (en) * 2017-12-27 2018-06-19 哈尔滨工业大学 Dusty material selectivity electric spark sintering increasing material manufacturing method and device
CN108176905B (en) * 2017-12-27 2019-11-05 哈尔滨工业大学 Dusty material selectivity electric spark sintering increasing material manufacturing method and device
CN108607992A (en) * 2018-05-23 2018-10-02 哈尔滨工业大学 Microbeam electric arc selectivity consolidation increasing material manufacturing method based on preset metal powder
CN108788150A (en) * 2018-06-28 2018-11-13 广西富乐科技有限责任公司 A kind of selective laser thawing metal 3D printing preheating power spreading device
CN109226762A (en) * 2018-11-14 2019-01-18 浙江工贸职业技术学院 A kind of metal 3D printing equipment
CN112172151A (en) * 2020-10-13 2021-01-05 深圳市未来工场科技有限公司 Automatic powder preparation device based on SLS technology 3D printer

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