CN203753896U - Mixed powder quantitative conveying and flattening device - Google Patents
Mixed powder quantitative conveying and flattening device Download PDFInfo
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- CN203753896U CN203753896U CN201420085694.9U CN201420085694U CN203753896U CN 203753896 U CN203753896 U CN 203753896U CN 201420085694 U CN201420085694 U CN 201420085694U CN 203753896 U CN203753896 U CN 203753896U
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Abstract
A mixed powder quantitative conveying and flattening device comprises a stock bin, a powder conveying device, a powder flattening device, a power scattering device and a block preventing device. The powder scattering device is two large pin shafts and used for combing and scattering mixed powder, and the two large pin shafts are fixed in the middle of the stock bin and can rotate oppositely. The block preventing device is a small rotary pin shaft and can rotate to prevent block of the mixed powder, and the small rotary pin shaft is fixed at the upper portion of an outlet of the stock bin. The powder conveying device comprises two belt wheel pairs, wherein the two belt wheel pairs are symmetrically arranged and can run synchronously. The two belt wheel pairs are fixed in belt wheel pair bearing holes through a slide groove rail, a bearing slide block is fixedly arranged between spindles of the belt wheel pairs, the bearing slide block can slide in the slide groove rail, and the belt wheel pairs can slide along with the bearing slide block to adjust a gap of the outlet. The mixed powder quantitative conveying and flattening device is suitable for quantitatively and evenly flattening and conveying various kinds of mixed powder with different particle diameters.
Description
Technical field
The utility model relates to a kind of mixed powder and quantitatively carries paving device, the mixed-powder of different-grain diameter can be paved uniformly on workplatform, belongs to mechanical equipment and manufactures field.
Background technology
In powder forming process, how the mixed-powder of different-grain diameter evenly being paved is a technical barrier, and as a pith of this technique, power spreading device has significant impact to the quality of whole system.
At present, in powder forming technical field, conventional has scraper-type, roll type, four kinds of mobile hopper-type and oscillatory types for powder paving powder mode.Patent 1(application number 03213749.4) a kind of power spreading device of mobile hopper-type is disclosed, the implementation procedure of its paving powder is: portable material box is loaded onto appropriate powder, workpiece box piston decline certain altitude, portable material box moves to the other end from workplatform one end, realizes the paving powder function in workpiece box region.Patent 2(application number 99237635.1) a kind of power spreading device of roll type is disclosed, the implementation procedure of its paving powder is: after the quantitative blanking of powder feeding mechanism, feeding rod pushes away powder in the workpiece processing district of arriving in workplatform, while and push away and catch up with powder pressing, realize paving powder function.Patent 3(application number 201010178060.4) a kind of non-contact type power automatic feeding and paving device are disclosed, the implementation procedure of powder falling paving powder is: after in the quantitative blanking paving of powder feeding mechanism dressing sieve, paving dressing sieve travels at the uniform speed above workpiece processing district, paving powder stepping motor will carry out forward and reverse alternate rotation according to the acceleration/accel of program setting and speed, thereby break powder knot arch, realizes paving powder.The paving powder process of scraper-type and patent 1 and patent 2 are similar.Above-mentioned power spreading device has shortcoming separately: when powder diameter very hour, due to surface can effect powder easily produce reunion, take to strike off and cannot realize micro mist with roll-in and pave; When the flowing power of powder self is poor, because arch formation powder can not flow out smoothly from hopper slit, this makes mobile hopper-type paving powder mode field of application limited; For oscillatory type, for powder power spreading device, when various powders mixes, because powder density is different, take its admixture of mechanical vibration destructible, form lamination.
Summary of the invention
The purpose of this utility model is to provide a kind of mixed powder quantitatively to carry paving device, quantitatively carries and paves, thereby solve the deficiency that existing power spreading device exists to realize mixed powder.
The technical solution of the utility model is as follows:
Mixed powder is quantitatively carried a paving device, comprises feed bin, powder conveying apparatus and powder paving device, and this mixed powder quantitatively carries paving device also to comprise powder lot dispersing device and preventing clogging up device.
Described powder lot dispersing device is the large needle shaft that is fixed on two opposite direction rotatings at feed bin middle part, and two large needle shafts in main shaft symmetry is arranged on feed bin front and rear wall spherical bearing hole, carry out combing, dispersion to mixed powder respectively after opposite direction rotating.Described large needle shaft, is bidirectional screw pin tooth axle, and bidirectional screw pin tooth axle is provided with the pin tooth that many bidirectional screws distribute, and the pin tooth length of large needle shaft is 8 ~ 12cm, and in the running, powder is pushed both sides to by centre to bidirectional screw pin tooth axle.
Described preventing clogging up device is the rotatable little needle shaft that is fixed on bin outlet top, little needle shaft is in main shaft is arranged on feed bin front and rear wall spherical bearing hole, by rotating little needle shaft, prevent that mixed powder from stopping up, little needle shaft is bidirectional screw pin tooth axle, bidirectional screw pin tooth axle is provided with the pin tooth that many bidirectional screws distribute, the pin tooth length of little needle shaft is 4 ~ 5cm, and in the running, powder is pushed both sides to by centre to bidirectional screw pin tooth axle.
Described feed bin is fixed on support, and support can move up and down, and guarantees powder drop.
Powder conveying apparatus comprises that two are symmetrical arranged the also belt pulley pair of synchronized operation, two right main shafts of belt pulley are separately fixed in the bearing hole in hopper front and rear wall chute track, by quantitative the transmitting to hopper outlet of mixed powder, between the right main shaft of belt pulley, be fixedly installed bearing slider, bearing slider can slide in chute track, and belt pulley, to sliding along with the slip of bearing slider, can be adjusted outlet gap.Two right main shaft bearing slide block bottoms of belt pulley are installed with curved baffle, and described curved baffle contacts gapless with belt pulley, effectively prevent that powder from splashing in exit, and curved baffle can slide along with the slip of bearing slider.
Powder paving device comprises the horizontal table that is arranged on bin outlet bottom, is provided with belt below horizontal table, and horizontal table moves along with the movement of belt, and belt drives through belt pulley.By controlling powder, pave the moving velocity of part and powder and pave distance between part and powder outlet paving applicable to the trickle mixed powder of different grain size size.
The utility model compared with prior art, has the following advantages:
(1) can realize the quantitative conveying of mixed powder.By adjusting bin outlet gap length and the right speed of timing belt pulley, can realize the quantitative conveying to mixed powder.
(2) can realize the accurate control of powder layer thickness and pave.The operational throughput of mixed powder is certain, by adjusting the height of horizontal operation platform and the moving velocity of horizontal table, can realize the accurate control of powder layer thickness and pave.
(3) can avoid mixed powder to reunite.Particularly wherein powder diameter very hour, surface can be high, take traditional strike off or roll-in mode powder is very easily reunited.Separate for powder process and paving powder process in the utility model, mixed powder by bin outlet, relies on deadweight to scatter on belt conveyor under friction force and squeese pressure effect, has avoided mixed powder reunion.
(4) can prevent that mixed powder from stopping up outlet.Near near little needle shaft bin outlet, by rotation, prevent that mixed powder from stopping up, avoided traditional mobile hopper-type because of mixed powder bridging arch camber can not outflow smoothly from bin outlet.
(5) can avoid mixed powder layering.The large needle shaft that two opposite direction rotatings are installed at feed bin middle part, carries out combing, dispersion to mixed powder, by friction force and squeese pressure effect, realizes blanking, thereby has avoided vibrating the phenomenon of the mixed-powder layering causing.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention, its medium-height trestle (1), powder (2), feed bin (3), large needle shaft (4,4'), little needle shaft (6), belt pulley to (5,5'), curved baffle to (7,7'), mobile working platform (8), belt (9) and belt pulley (10).
Fig. 2 is the structural representation of Fig. 1 middle outlet lash adjusting device, wherein, feed bin (3), belt pulley to (5,5'), curved baffle to wall (11) before and after (7,7'), powder storehouse, large needle axle bearing hole (12,12'), chute track (13), bearing slider (14,14'), belt pulley to bearing hole (15,15'), little needle shaft bearing hole (16).
Fig. 3 is wall structural representation in Fig. 2, wherein, and wall (11) before and after powder storehouse, large needle axle bearing hole (12,12'), chute track (13), little needle shaft bearing hole (16).
Fig. 4 is the structural representation of Fig. 2 centre bearer slide block, wherein, curved baffle to (7,7'), bearing slider (14,14'), belt pulley to bearing hole (15,15').
Fig. 5 is needle shaft structural representation.Described bidirectional screw pin tooth axle is provided with the many pin teeth that become bidirectional screw to distribute, so that bidirectional screw pin tooth axle is pushed powder to both sides by centre in the running.
The specific embodiment
Fig. 1 is structural principle schematic diagram of the present utility model.This mixed powder is quantitatively carried paving device, comprises feed bin 3, powder conveying apparatus, powder paving device, powder lot dispersing device and preventing clogging up device.
Powder lot dispersing device is large needle shaft 4, the 4' that is fixed on two opposite direction rotatings at feed bin 3 middle parts, and two large needle shafts 4,4' are respectively in main shaft symmetry is arranged on feed bin 3 wall large needle axle bearing holes, front and back 12,12'.
Preventing clogging up device is the rotatable little needle shaft 6 that is fixed on bin outlet top, and little needle shaft 6 is in main shaft is arranged on the little needle shaft bearing hole 16 of feed bin 3 front and back wall.
Described feed bin 3 is fixed on support 1, and support 1 can move up and down.
Powder conveying apparatus comprise two be symmetrical arranged and the belt pulley of synchronized operation to 5,5', two belt pulleys to 5, the main shaft of 5' is separately fixed at belt pulley in hopper front and rear wall chute track 13 in bearing hole 15,15', belt pulley is fixedly installed bearing slider 14,14' to 5, between the main shaft of 5', bearing slider 14,14' can be in the interior slips of chute track 13, and belt pulley to 5,5' can slide along with the slip of bearing slider 14,14', regulates outlet gap length.
Described two belt pulleys of V to 5, the main shaft bearing slide block 14 of 5', 14' bottom be installed with curved baffle 7,7', described curved baffle 7,7' and belt pulley to 5,5' gapless contacts, and curved baffle 7,7' can slide along with the slip of bearing slider 14,14'.
Powder paving device comprises the horizontal table 8 that is arranged on feed bin 3 outlet bottoms, and horizontal table 8 is provided with belt 9 below, and horizontal table 8 moves along with the movement of belt 9, and belt 9 drives through belt pulley 10.
Described large needle shaft 4,4', little needle shaft 6 is bidirectional screw pin tooth axle, and bidirectional screw pin tooth axle is provided with the pin tooth that many bidirectional screws distribute, and the pin tooth length of large needle shaft 4,4' is 8 ~ 12cm, and the pin tooth length of little needle shaft 6 is 4 ~ 5cm.
This mixed powder quantitatively carries the working process of paving device as follows:
Feed bin 3 is fixed on support 1, stores mixed powder 2; Large needle shaft 4,4' that feed bin 3 middle parts are symmetrically installed with two opposite direction rotatings, carry out combing, dispersion to mixed powder; Little needle shaft 6 near feed bin 3 outlet tops prevents that by rotation mixed powder from stopping up; Adjust feed bin 3 outlet gaps and timing belt pulley to 5, the speed of 5' realizes the weight feed to powder; Moving velocity and feed bin 3 that control powder is paved part go out the uniform spreading powder that open height is realized different-thickness.
Verification experimental verification: select grain size scope in 100 order ~ 350 orders, density at 0.8g/cm
3~ 4.0g/cm
3mixed-powder as test article, quantitatively carry paving device bin outlet gap and bin outlet width to be controlled at respectively between 1.0 ~ 2.0mm and 50.0 ~ 100.0mm, bin outlet height is controlled at 5.0 ~ 15.0mm, the right moving velocity of belt pulley of synchronized operation is 1.00 ~ 2.00m/s, horizontal operation platform movement speed is 1.00 ~ 2.50m/s, little needle shaft rotative speed is 30 ~ 60m/s, and large needle shaft is 10 ~ 30m/s to rotative speed.Repeatedly spread powder test results and show that powder layer thickness, between 0.10 ~ 0.15mm, is divided into 25 ~ 30 zonules by paving powder region, record quality and the paving powder consistency of thickness of each zonule powder.
Claims (4)
1. a mixed powder is quantitatively carried paving device, comprise feed bin (3), powder conveying apparatus and powder paving device, it is characterized in that: this mixed powder quantitatively carries paving device also to comprise powder lot dispersing device and preventing clogging up device, powder lot dispersing device is for being fixed on the large needle shaft (4 of two opposite direction rotatings in the middle part of feed bin (3), 4'), two large needle shafts (4, 4') through main shaft symmetry, be arranged on wall large needle axle bearing hole (12, feed bin (3) front and back respectively, 12'), preventing clogging up device is the rotatable little needle shaft (6) that is fixed on bin outlet top, little needle shaft (6) is in main shaft is arranged on feed bin (3) the front and back little needle shaft bearing holes of wall (16), powder conveying apparatus comprises that two belt pulleys that are symmetrical arranged also synchronized operation are to (5, 5'), two belt pulleys are to (5, main shaft 5') is separately fixed at the interior belt pulley of hopper front and rear wall chute track (13) to bearing hole (15, 15'), belt pulley is to (5, between main shaft 5'), be fixedly installed bearing slider (14, 14'), bearing slider (14, 14') can in chute track (13), slide, and belt pulley is to (5, 5') can be along with bearing slider (14, slip 14') and sliding, regulate outlet gap length, powder paving device comprises the horizontal table (8) that is arranged on feed bin (3) outlet bottom, horizontal table (8) is provided with belt (9) below, horizontal table (8) moves along with the movement of belt (9), belt (9) drives through belt pulley (10).
2. mixed powder according to claim 1 is quantitatively carried paving device, it is characterized in that: it is upper that described feed bin (3) is fixed on support (1), and support (1) can move up and down.
3. mixed powder according to claim 1 is quantitatively carried paving device, it is characterized in that: two belt pulleys are installed with curved baffle (7,7') to the main shaft bearing slide block of (5,5') (14,14') bottom, described curved baffle (7,7') and belt pulley contact (5,5') gapless, and curved baffle (7,7') can be along with the slip of bearing slider (14,14') and slide.
4. mixed powder according to claim 1 is quantitatively carried paving device, it is characterized in that: described large needle shaft (4,4'), little needle shaft (6) is bidirectional screw pin tooth axle, bidirectional screw pin tooth axle is provided with the pin tooth that many bidirectional screws distribute, the pin tooth length of large needle shaft (4,4') is 8 ~ 12cm, and the pin tooth length of little needle shaft (6) is 4 ~ 5cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420085694.9U CN203753896U (en) | 2014-02-27 | 2014-02-27 | Mixed powder quantitative conveying and flattening device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420085694.9U CN203753896U (en) | 2014-02-27 | 2014-02-27 | Mixed powder quantitative conveying and flattening device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203753896U true CN203753896U (en) | 2014-08-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420085694.9U Expired - Fee Related CN203753896U (en) | 2014-02-27 | 2014-02-27 | Mixed powder quantitative conveying and flattening device |
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| CN (1) | CN203753896U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103818711A (en) * | 2014-02-27 | 2014-05-28 | 三峡大学 | Mixed powder quantitative conveying and paving device |
| CN106973869A (en) * | 2017-05-09 | 2017-07-25 | 四川省农业科学院蚕业研究所 | Eccentric screw duster and its processing method |
| CN108127081A (en) * | 2017-12-21 | 2018-06-08 | 广州市爱司凯科技股份有限公司 | 3D printing powder particle paving device and laying method |
| CN111169897A (en) * | 2020-01-07 | 2020-05-19 | 李建京 | Feeding equipment with automatic dredging function |
| CN111413338A (en) * | 2016-08-29 | 2020-07-14 | 爱威科技股份有限公司 | Sample detection system |
-
2014
- 2014-02-27 CN CN201420085694.9U patent/CN203753896U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103818711A (en) * | 2014-02-27 | 2014-05-28 | 三峡大学 | Mixed powder quantitative conveying and paving device |
| CN111413338A (en) * | 2016-08-29 | 2020-07-14 | 爱威科技股份有限公司 | Sample detection system |
| CN106973869A (en) * | 2017-05-09 | 2017-07-25 | 四川省农业科学院蚕业研究所 | Eccentric screw duster and its processing method |
| CN108127081A (en) * | 2017-12-21 | 2018-06-08 | 广州市爱司凯科技股份有限公司 | 3D printing powder particle paving device and laying method |
| CN111169897A (en) * | 2020-01-07 | 2020-05-19 | 李建京 | Feeding equipment with automatic dredging function |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140806 Termination date: 20150227 |
|
| EXPY | Termination of patent right or utility model |