CN1283578A - Automatic powder feeding system for quickly shaping - Google Patents
Automatic powder feeding system for quickly shaping Download PDFInfo
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- CN1283578A CN1283578A CN 00114675 CN00114675A CN1283578A CN 1283578 A CN1283578 A CN 1283578A CN 00114675 CN00114675 CN 00114675 CN 00114675 A CN00114675 A CN 00114675A CN 1283578 A CN1283578 A CN 1283578A
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- feeding roller
- powder
- sealing band
- quantitative
- feeding system
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Abstract
An automatic powder feeding system with quick shaping function is disclosed. The material tank with stirrer is fixed in working cavity. The quantitative feeding mechanism under it is composed of division-type quantitative tank and casing. The quantitative tank in the casing has an axle linked to driver behind the working cavity. The feeding roller is linked to the power unit with bumping blocks. Said system alsohas sealing band, autocontrolled pre-heater and separable overflow powder container. Its advantages are high antiwear nature, wide range of materials and high sinter efficiency and quality.
Description
The invention belongs to the advanced manufacturing technology field, be specifically related to a kind of automatic powder feeding system for quickly shaping.
SLS (Selective Laser Sintering, precinct laser sintering technology) is present widespread use and business-like quick molding method.What the SLS rapid shaping technique adopted is the selective laser sintering principle.In theory, can be used as SLS double burned raw MAT'L by bonded assembly powder after any being heated, as Polymer, pottery, metal powder and their composite powder.Because variation, the reusability of SLS formed material make that the field of application of SLS is very extensive.The SLS technology is the set of various technology, and wherein, the powder feeding technology is one of gordian technique, and it is very big to the influences such as shaping efficiency of volume, price, comfort feature and the product of SLS equipment.
The utility model patent of the applicant the applicant application (application number 99 2 37635.1, on April 5th, 2000 was announced) discloses a kind of quantitative feed device.This device is made of hopper, quantitative feed mechanism, spring and feeding roller.Hopper is arranged at the top of quantitative feed mechanism, quantitative feed mechanism is made up of feedboard, reclaiming plate, dosing control desk, the discharging opening of hopper is corresponding with the charging hole on the feedboard, between feedboard and reclaiming plate, be provided with the dosing control desk, on dosing control desk and reclaiming plate, be respectively equipped with hopper and discharge opening.This quantitative feed apparatus structure is simple, control is convenient.But because this device is to adopt the mode of translation dosing control desk to realize feeding, when institute's feeding was metal, pottery or other hard material, its quantitative feed mechanism was easy to wear and tear; And because friction drag increases, the dosing control desk blocks easily, causes the quantitative feed failure, so this quantitative feed device only is applicable to the feeding of plastic powders.In addition, this device is directly fallen powder on the workplatform from certain altitude, causes the part powder to scatter outside the work processing district, causes " pollution " and the waste of powder to working environment.
The objective of the invention is to overcome the above-mentioned defective of prior art, a kind of new automatic powder feeding system for quickly shaping is provided.This automatic powder feeding system for quickly shaping can be wear-resistant, is applicable to the feeding of various dusty materials such as plastics, pottery and metal, and the waste of powder simultaneously reduces greatly, and working environment is also clean more.
For achieving the above object, this automatic powder feeding system for quickly shaping comprises epitrochoidal chamber, hopper, quantitative feed mechanism, actuating device, feeding roller and powder-laying funnel, and hopper is fixed in the epitrochoidal chamber, and its inlet point is arranged on epitrochoidal chamber top or sidepiece.Be provided with mixer in the hopper, this mixer is formed with stirrer shaft by stirring net, and the stirring net is installed on the stirrer shaft, the other end of stirrer shaft be positioned at the exterior drive spindle of epitrochoidal chamber rear wall and be connected, drive spindle is provided with backspring.Described quantitative feed mechanism is by waiting fraction quantitative slot and housing thereof to form, be movably arranged in the housing Deng the fraction quantitative slot, inlet point on the housing is corresponding with the discharging opening of hopper, the axle of these fraction quantitative slots be positioned at the exterior actuating device of epitrochoidal chamber rear wall and link to each other.Engine installation is positioned at the outside of epitrochoidal chamber rear wall, collision block is housed above it, feeding roller is positioned at the driving surface top, the axle of this feeding roller links to each other with engine installation, sealing band is clamped between the axle and engine installation of feeding roller, feeding roller cover is positioned at the feeding roller top and is fixed on the axle of feeding roller, in the side of feeding roller cover powder-laying funnel is installed, and the feed gap dimension of powder-laying funnel is corresponding with the discharging opening size on the housing that waits the fraction quantitative slot.
Further improve as the present invention, but system of the present invention is provided with automatically controlled preheating device and the detachable powder handling tube that overflows.
Automatic powder feeding system for quickly shaping provided by the invention kept the shop powder precision height of background technology, from the top powder feeding, can adjust inlet amount and characteristics such as simple in structure, simultaneously because the present invention adopts the parallel-moving type feed mechanism in the rotary quantitative feed mechanism replacement background technology, mechanism is more wear-resisting, applicable to polytype raw MAT'L.On powder-laying roller, set up powder-laying funnel, can be closely, in time powder is delivered to work top, can prevent like this that powder from scattering pollutes working environment and waste raw MAT'L outside the work area.In addition, the present invention also adopts sealing band that epitrochoidal chamber is sealed, and this not only can keep epitrochoidal chamber to have stationary temperature, and can guarantee that powder is only movable or fall into the detachable powder handling tube that overflows in epitrochoidal chamber, and do not enter other place of SLS equipment, to keep the working environment cleaning.Adopt improved type of the present invention, but this system is provided with mixer and automatically controlled preheating device, can guarantee the smooth and easy whereabouts of powder, and improves the temperature of powder and epitrochoidal chamber, to satisfy laser sintered process requirements, the quality with sintered part of increasing work efficiency.
Below in conjunction with accompanying drawing the specific embodiment of the present invention is described in further detail:
Fig. 1 is the structural representation of a kind of embodiment of automatic powder feeding system for quickly shaping of the present invention;
Fig. 2 is the cutaway view along A-A line among Fig. 1;
The birds-eye view of Fig. 3 for installing shown in Fig. 1;
Fig. 4 be among Fig. 2 C to partial view;
Fig. 5 is the structural representation of the another kind of embodiment of automatic powder feeding system for quickly shaping of the present invention.
The present invention can adopt unidirectional or two-way automatic powder feeding system, Fig. 1 to shown in Figure 4 be a kind of embodiment of apparatus of the present invention of two-way powder feeding from the structural representation at different visual angles, Fig. 4 adopts the driving principle figure of escapement as the system of actuating device.Hopper 2,2 ' symmetry be installed in epitrochoidal chamber 1 about portion, its inlet point is positioned at epitrochoidal chamber 1 top, also can be positioned at the sidepiece of epitrochoidal chamber 1, adds required double burned powder by this inlet point.The stirrer shaft 3,3 ' the end that are positioned at hopper are equipped with and stir net 4,4 ', and the other end links to each other with the exterior drive spindle 21,21 ' of epitrochoidal chamber rear wall.On the drive spindle 21,21 ' backspring 22,22 ' is installed, this backspring 22,22 ' the other end can be fixed on epitrochoidal chamber rear wall outside.Quantitative feed mechanism 6,6 ' is positioned at hopper 2,2 ' below, this mechanism by wait fraction quantitative slot 7,7 ' and housing 5,5 ' form, housing maintains static, its inlet point and hopper 2,2 ' discharging opening are corresponding, the fraction quantitative slot 7,7 ' that waits in the housing can change, and rotatable, process raw material according to required what, can open housing and change the not quantitative slot of equivalent scores, two are waited the axle of fraction quantitative slot to link to each other with exterior two actuating devices of epitrochoidal chamber rear wall respectively.Actuating device is an escapement among this embodiment, comprises ratchet 19, active ratchet 18, spacing ratchet 20 and retracing spring 23, waits the axle of fraction quantitative slot to link to each other with ratchet, and spacing ratchet 20 and described retracing spring 23 can be fixed on epitrochoidal chamber rear wall outside.Engine installation 15 is positioned at the outside of epitrochoidal chamber rear wall, and collision block 16 is housed on it, this collision block can strike above-mentioned drive spindle 21,21 ' and about active ratchet on two escapements.Feeding roller 10 a little higher than driving surface 14 certain distances, this distance should be greater than the maximum ga(u)ge of shop bisque.The axle of this feeding roller is connected on the engine installation 15, and engine installation 15 can be made up of two motors, and wherein one is used to drive feeding roller 10 rotations, and another is used to drive feeding roller 10 sway.Sealing band 13 is clamped between feeding roller 10 and the engine installation 15, and sealing band 13 makes epitrochoidal chamber 1 keep sealing.Engine installation 15 can drive feeding roller rotation and sway simultaneously, and sealing band 13 is sway thereupon also, and sealing band 13 should be greater than the length of driving surface 14 with the length of junction to its two termination of engine installation.For making things convenient for the sealing band motion, the curling box of a sealing band can be set respectively at two ends of its orbit, this box is provided with the opening for the sealing band turnover.Sealing band when moving left when the actuating device band, the sealing band in the box of the right is taken out of automatically, and the sealing band on the left side enters and automatic guide is curled and is collected in the box on the left side along opening.Its principle of work was identical when the edge moved right.The feeding roller top is provided with feeding roller cover 8, and its shape can be " " shape, and is installed on the axle of feeding roller.Two sides of feeding roller cover 8 are equipped with powder-laying funnel 12,9, the inlet point of powder-laying funnel 12,9 with etc. housing 5,5 ' the discharging opening of fraction quantitative slot corresponding, its discharging opening is an elongate.Two ends are respectively established a spillway about work top, and the detachable powder tube 11,11 ' that overflows is set below spillway, are used to collect unnecessary powder.
Quick shaping process usually needs carry out preheating to raw MAT'L, adopt when of the present invention, but also as required other position in hopper and epitrochoidal chamber a plurality of automatically controlled preheating devices are set.Usually, the raw MAT'L preheating temperature in the charging basket can not be too high, in order to avoid the raw MAT'L bonding is unfavorable for spreading powder.But the heating-up temperature of epitrochoidal chamber can be higher, as long as be lower than raw-material fusion temperature slightly.
The actuating device that drives the work of quantitative feed device is a prior art, and the mode of its realization has multiple, as escapement, calibration rotating disk or the rotation of driven by motor calibration etc.When using driven by motor calibration rotation mode, collision block 16 need be set on the engine installation 15, as long as establish a driven by motor quantitative feed mechanism calibration rotation in addition, and make it to coordinate mutually to get final product with the feeding roller sway.
Shown in Figure 5 is the automatic powder feeding system for quickly shaping of unidirectional powder feeding, this system has only a hopper to be positioned at epitrochoidal chamber 1 in-to-in one side, its inlet point is positioned at the sidepiece of epitrochoidal chamber 1, also can be positioned at its top, native system correspondingly has only a cover quantitative feed mechanism 6, mixer, actuating device and drive spindle and backspring.Also only in a side powder-laying funnel 12 is set on feeding roller cover, other structure is identical with the structure of two-way powder feeding.
Be example with escapement as the unidirectional automatic powder feeding system of actuating device below, the principle of work of above-mentioned embodiment of the present invention is described.But the automatically controlled preheating device carries out preheating to raw MAT'L in the charging basket and epitrochoidal chamber, makes its temperature satisfy laser sintered requirement.Engine installation can drive feeding roller and rotate also sway on work top simultaneously.When feeding roller moved to the end position of a side, active ratchet on the collision block bump ratchet on the engine installation drove ratchet and rotates, and the fraction quantitative slot that waits that ratchet drives automatic feed mechanism again rotates lattice.Simultaneously, spacing ratchet moves lattice, prevents the ratchet counter-rotating.Collision block is the ram drive bar simultaneously, make the certain angle of drive spindle swing, the work of drive mixer, it is smooth and easy to guarantee that powder falls, at this moment the powder in the hopper is arranged in the lattice of quantitative slot of the inlet point of quantitative slot housing because of deadweight falls into, and the powder that is arranged in the quantitative slot lattice of housing discharging opening falls into powder-laying funnel because of deadweight.Subsequently, engine installation drives powder-laying roller and oppositely moves, collision block counter motion simultaneously, and ratchet oppositely moves lattice and gets back to original position under the support of driving ratchet, action of reset spring.Simultaneously.Original position is arrived in the backswing under the effect of backspring of the drive spindle of powder blender, and stirs the powder in the charging basket.Powder-laying funnel is in the process that moves with feeding roller, and powder wherein constantly drops on the work top from its elongated shape outlet, and feeding roller pushes away flat and compacting with powder, for laser sintered use.After this layer sintering finished, a shop of clutch release slave cylinder decline bisque is thick, carries out feeding next time, stone again, and so circulation drives the feeding roller side-to-side movement, to realize quantitative feed and stone, the separation type about unnecessary powder can fall into by spillway is overflowed the powder handling tube.
Claims (8)
1. automatic powder feeding system for quickly shaping, by hopper (2), quantitative feed mechanism (6) and feeding roller (10) are formed, described hopper (2) is arranged on the top of quantitative feed mechanism (6), the top of the workplatform (14) below described quantitative feed mechanism (6) is provided with described feeding roller (10), it is characterized in that: described hopper (2) is fixed in the epitrochoidal chamber (1), its inlet point is positioned at epitrochoidal chamber 1 top or sidepiece, hopper is provided with mixer in (2), this mixer is formed with stirrer shaft (3) by stirring net (4), stirring net (4) is installed on the stirrer shaft (3), the other end of stirrer shaft (3) be positioned at the exterior drive spindle of epitrochoidal chamber rear wall (21) and be connected, drive spindle is provided with backspring (22), described quantitative feed mechanism (6) is by waiting fraction quantitative slot (7) and housing (5) thereof to form, be movably arranged in the housing (5) Deng fraction quantitative slot (7), inlet point on the housing (5) is corresponding with the discharging opening of hopper (2), the axle of these fraction quantitative slots be positioned at the exterior actuating device of epitrochoidal chamber rear wall and link to each other, engine installation (15) is positioned at the outside of epitrochoidal chamber rear wall, collision block (16) is housed above the engine installation (15), the axle of feeding roller (10) links to each other with engine installation 15, sealing band (13) is clamped between feeding roller (10) and the engine installation (15), feeding roller cover (8) is positioned at the feeding roller top and is installed on the axle of feeding roller, in the side of feeding roller cover (8) powder-laying funnel (12) is installed, the feed gap dimension of powder-laying funnel (12) is corresponding with the discharging opening size on the housing (5) that waits the fraction quantitative slot.
2. automatic powder feeding system for quickly shaping according to claim 1, it is characterized in that: two described hoppers are installed in the described epitrochoidal chamber, correspondingly be provided with two cover described mixer, drive spindles, backspring, quantitative feed mechanism and actuating device, described feeding roller cover each side be provided with a powder-laying funnel.
3. automatic powder feeding system for quickly shaping according to claim 1 and 2 is characterized in that: but be provided with the automatically controlled preheating device in described hopper and the epitrochoidal chamber.
4. automatic powder feeding system for quickly shaping according to claim 3 is characterized in that: two end places of described sealing band path of motion are provided with the curling box of sealing band respectively, and this box is provided with the opening for the sealing band turnover, and two ends of sealing band are positioned at this box.
5. automatic powder feeding system for quickly shaping according to claim 4 is characterized in that: the two ends of described workplatform are provided with spillway, and the below of this spillway is provided with the detachable powder handling tube that overflows.
6. automatic powder feeding system for quickly shaping according to claim 1 and 2 is characterized in that: the actuating device of this device is escapement or calibration rotating disk.
7. automatic powder feeding system for quickly shaping according to claim 6 is characterized in that: two end places of described sealing band path of motion are provided with the curling box of sealing band respectively, and this box is provided with the opening for the sealing band turnover, and two ends of sealing band are positioned at this box.
8. automatic powder feeding system for quickly shaping according to claim 7 is characterized in that: the two ends of described workplatform are provided with spillway, and the below of this spillway is provided with the detachable powder handling tube that overflows.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00114675 CN1120794C (en) | 2000-07-03 | 2000-07-03 | Automatic powder feeding system for quickly shaping |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00114675 CN1120794C (en) | 2000-07-03 | 2000-07-03 | Automatic powder feeding system for quickly shaping |
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| Publication Number | Publication Date |
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| CN1283578A true CN1283578A (en) | 2001-02-14 |
| CN1120794C CN1120794C (en) | 2003-09-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00114675 Expired - Fee Related CN1120794C (en) | 2000-07-03 | 2000-07-03 | Automatic powder feeding system for quickly shaping |
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Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100388982C (en) * | 2005-02-03 | 2008-05-21 | 上海交通大学 | High tension electrostatic separating apparatus and method for worn-out broken printed circuit board granules |
| CN101885062A (en) * | 2010-07-28 | 2010-11-17 | 武汉滨湖机电技术产业有限公司 | Rapid shaping automatic powder feeding and spreading device |
| CN102189065A (en) * | 2010-03-04 | 2011-09-21 | 研能科技股份有限公司 | Quantification powder supply assembly |
| CN101596594B (en) * | 2008-06-03 | 2012-12-26 | 上海电机学院 | Powder feeder |
| TWI472427B (en) * | 2012-01-20 | 2015-02-11 | 財團法人工業技術研究院 | Device and method for powder distribution and additive manufacturing method using the same |
| CN104428123A (en) * | 2012-06-22 | 2015-03-18 | 沃克斯捷特股份公司 | Device for building multilayer structure with storage container or filling container movable along dispensing container |
| CN105522148A (en) * | 2014-10-20 | 2016-04-27 | 沙迪克株式会社 | Lamination molding apparatus |
| CN105563642A (en) * | 2015-12-28 | 2016-05-11 | 江西省环球陶瓷有限公司 | Automatic conveying system used for ceramic production |
| CN106424727A (en) * | 2016-10-13 | 2017-02-22 | 北京隆源自动成型系统有限公司 | Selective laser sintering forming machine with multiple feeding systems |
| CN106563806A (en) * | 2016-11-03 | 2017-04-19 | 西安交通大学 | Electromagnetic induction heating type powder supplying and laying integrated system for powder bed additive 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 |
| CN107695355A (en) * | 2017-11-24 | 2018-02-16 | 安徽科元三维技术有限公司 | Power spreading device for SLS printers |
| CN108067613A (en) * | 2016-11-15 | 2018-05-25 | 东台精机股份有限公司 | The powder feeder unit of powdering machine |
| CN108097954A (en) * | 2018-01-19 | 2018-06-01 | 浙江万丰科技开发股份有限公司 | A kind of 3D printer quantitatively supplying powder hopper |
| CN109322538A (en) * | 2018-11-26 | 2019-02-12 | 南安市起胤机械科技有限公司 | A kind of power construction fence placement positioning device being used in wind weather |
| CN110919013A (en) * | 2019-12-11 | 2020-03-27 | 湖南天际智慧材料科技有限公司 | Metal powder flame spheroidizing equipment and processing technology thereof |
| US10870237B2 (en) | 2016-11-15 | 2020-12-22 | Tongtai Machine & Tool Co., Ltd. | Powder supply device for use with powder spreaders |
-
2000
- 2000-07-03 CN CN 00114675 patent/CN1120794C/en not_active Expired - Fee Related
Cited By (24)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100388982C (en) * | 2005-02-03 | 2008-05-21 | 上海交通大学 | High tension electrostatic separating apparatus and method for worn-out broken printed circuit board granules |
| CN101596594B (en) * | 2008-06-03 | 2012-12-26 | 上海电机学院 | Powder feeder |
| CN102189065A (en) * | 2010-03-04 | 2011-09-21 | 研能科技股份有限公司 | Quantification powder supply assembly |
| US8459981B2 (en) | 2010-03-04 | 2013-06-11 | Microjet Technology Co., Ltd. | Quantitative powder-providing module |
| CN101885062A (en) * | 2010-07-28 | 2010-11-17 | 武汉滨湖机电技术产业有限公司 | Rapid shaping automatic powder feeding and spreading device |
| US9533350B2 (en) | 2012-01-20 | 2017-01-03 | Industrial Technology Research Institute | Device and method for powder distribution and additive manufacturing method using the same |
| TWI472427B (en) * | 2012-01-20 | 2015-02-11 | 財團法人工業技術研究院 | Device and method for powder distribution and additive manufacturing method using the same |
| US10675655B2 (en) | 2012-01-20 | 2020-06-09 | Industrial Technology Research Institute | Device and method for powder distribution and additive manufacturing method using the same |
| CN104428123A (en) * | 2012-06-22 | 2015-03-18 | 沃克斯捷特股份公司 | Device for building multilayer structure with storage container or filling container movable along dispensing container |
| CN104428123B (en) * | 2012-06-22 | 2016-09-14 | 沃克斯捷特股份公司 | With the equipment for constructing polylayer forest along the movable deposit of discharging container or filling container |
| CN105522148A (en) * | 2014-10-20 | 2016-04-27 | 沙迪克株式会社 | Lamination molding apparatus |
| CN105563642A (en) * | 2015-12-28 | 2016-05-11 | 江西省环球陶瓷有限公司 | Automatic conveying system used for ceramic production |
| CN106424727A (en) * | 2016-10-13 | 2017-02-22 | 北京隆源自动成型系统有限公司 | Selective laser sintering forming machine with multiple feeding systems |
| CN106563806A (en) * | 2016-11-03 | 2017-04-19 | 西安交通大学 | Electromagnetic induction heating type powder supplying and laying integrated system for powder bed additive manufacturing |
| CN106563806B (en) * | 2016-11-03 | 2018-07-03 | 西安交通大学 | A kind of electromagnetic induction heating of powder bed increasing material manufacturing supplies powdering integral system |
| CN108067613A (en) * | 2016-11-15 | 2018-05-25 | 东台精机股份有限公司 | The powder feeder unit of powdering machine |
| US10870237B2 (en) | 2016-11-15 | 2020-12-22 | Tongtai Machine & Tool Co., Ltd. | Powder supply device for use with powder spreaders |
| 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 |
| 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 |
| CN107695355A (en) * | 2017-11-24 | 2018-02-16 | 安徽科元三维技术有限公司 | Power spreading device for SLS printers |
| CN108097954A (en) * | 2018-01-19 | 2018-06-01 | 浙江万丰科技开发股份有限公司 | A kind of 3D printer quantitatively supplying powder hopper |
| CN109322538A (en) * | 2018-11-26 | 2019-02-12 | 南安市起胤机械科技有限公司 | A kind of power construction fence placement positioning device being used in wind weather |
| CN109322538B (en) * | 2018-11-26 | 2020-09-25 | 厦门市谦顺电力工程有限公司 | Positioning device is laid to electric power construction rail that uses in windy weather |
| CN110919013A (en) * | 2019-12-11 | 2020-03-27 | 湖南天际智慧材料科技有限公司 | Metal powder flame spheroidizing equipment and processing technology thereof |
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| CN1120794C (en) | 2003-09-10 |
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