CN205310830U - Smooth core send whitewashed formula 3D printer powder feeder unit - Google Patents
Smooth core send whitewashed formula 3D printer powder feeder unit Download PDFInfo
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- CN205310830U CN205310830U CN201520824554.3U CN201520824554U CN205310830U CN 205310830 U CN205310830 U CN 205310830U CN 201520824554 U CN201520824554 U CN 201520824554U CN 205310830 U CN205310830 U CN 205310830U
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- powder
- slide core
- abdominal cavity
- cavity
- feeder unit
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Abstract
Smooth core send whitewashed formula 3D printer powder feeder unit belongs to the vibration material disk field, the device arranges the below of dust hopper in, is equipped with the cavity, has smooth core in the cavity, and smooth in -core has the abdominal cavity, cavity top mouthful communicates with each other with advancing the powder, and smooth core in the cavity slides around can be in the cavity, when smooth core retreat, its abdominal cavity when advancing powder mouthful switch -on, during powder for use gets into the abdominal cavity, when smooth core go forward, its abdominal cavity is during with the meal outlet switch -on, powder for use spits through the meal outlet from the abdominal cavity, the powder feeder unit is for spreading whitewashed scraper device confession powder promptly, under control system all controls, supply the powder time, supply the powder volume accurately to guarantee, simple structure, it is convenient to adorn the powder.
Description
Technical field
The utility model relates to and increases material and manufacture field, especially " Layered manufacturing, add by stacking " and form the 3D printer of workpiece.
Background technology
Adopt different materials or different moulding processs, the structure of 3D printer and principle are also different, spread powder sintering by layer shaping or spread the 3D printer of powder curing molding by layer, it is one of 3D printer that current structure is comparatively ripe, comprises metal powder and non-metal powder 3D printer. Fig. 1, Fig. 2 are 3D printer schematic diagram, and its main structure is made up of powder feeder unit 1, paving powder doctor blade device 7, forming cavity system 6, sintering or solidification equipment 8, receipts powder chamber 5 and Controlling System, the gentle recycle system of cooling etc. usually; The step printing part mainly contains three steps, the first step: powder feeding; Powder is delivered to before the scraper of paving powder doctor blade device 7 by powder feeder unit 1. 2nd step: paving powder; The scraper of paving powder doctor blade device 7 moves horizontally, and is paved by stand-by powder 2. 3rd step: sintering or solidification; Sintering or solidification equipment 8 work, by practicality powder sintering or solidification. In actual, this three step is the working process of the long-time recirculation of machine, in this course, once goes wrong arbitrarily, and the part printed will be scrapped; Committed step is for powder, it is desired to according to quantity, if there is deviation for the powder time, can must directly affect the normal operation of next step scraper for powder on time, if there is deviation for powder quantity, will affect paving powder quality or waste powder material. Current known powder feeder unit complex structure, to take space relatively big, also has for problems such as powder are unreliable.
Summary of the invention
In order to solve powder feeder unit complex structure, for the insecure problem of powder, the utility model provides a kind of slide core powder feeding formula 3D printer powder feeder unit, this device has the various ways such as the two powder feedings in upper powder feeding, lower powder feeding and both sides, is characterized in by every time required quantitative powder and being transported to paving powder doctor blade device desired position by the to-and-fro movement of slide core.
The technical scheme that the utility model is taked is: in the lower section of powder case, be provided with cavity, has slide core in cavity, has abdominal cavity in slide core; Communicate with powder inlet above cavity, slide core in cavity can slide anteroposterior in the cavities, when slide core retrogressing, its abdominal cavity and powder inlet are connected, stand-by powder enters in abdominal cavity, when slide core advance, its abdominal cavity and powder delivery mouth are connected, stand-by powder is told out through powder delivery mouth from abdominal cavity, and namely powder feeder unit is for paving powder doctor blade device is for powder, slide core often completes a to-and-fro movement, and powder feeder unit just completes once for powder circulation;For powder amount number by the volumetric void fraction in abdominal cavity.
The beneficial effects of the utility model are, by the to-and-fro movement of slide core, it is achieved for powder circulation, under Controlling System system control, for the powder time, can both accurately ensure for powder amount, and structure is simple, and dress powder is convenient.
Accompanying drawing explanation
Fig. 1 is 3D printer host cross-sectional schematic.
Fig. 2 is the A-A cross-sectional schematic of Fig. 1.
Fig. 3 is board-like slide core powder feeding structural representation.
Fig. 4 is another view of Fig. 3.
Fig. 5 is the B-B cross-sectional schematic of Fig. 4.
Fig. 6 is the C-C cross-sectional schematic of Fig. 4.
Fig. 7 is drive mechanism schematic three dimensional views.
Fig. 8 is that board-like slide core tilts powder feeding structural representation.
Fig. 9 is slide block type slide core powder feeding structural representation.
Figure 10 is another status architecture schematic diagram of Fig. 9.
Figure 11 is the two powder feeding structural representation of slide block type slide core.
Figure 12 is the two powder feeding of slide block type slide core, receives powder structural representation.
Figure 13 is the D-D cross-sectional schematic of Fig. 9.
In figure: 1. powder feeder unit, 2. stand-by powder, 3. moulding cylinder piston, 4. workpiece, 5. receive powder chamber, 6. forming cavity system, 7. spread powder doctor blade device, 8. sinter, or solidification equipment, 101. powder casees, 102. slide core, 103. bottom, 104. powder inlet, 105. abdominal cavity, 106. powder delivery mouths, 107. cavity, 108. skylight, 110. gear, 111. sealed strip, 112. spiral groove, 113. axle, 114. shaft coupling, 115. step-down gear, 116. motor, 117. movable lug plates, 118. spacing pins, 119. tooth bar, 201. powder case B, 202. slide core B, 203. guide rail B, 204. powder inlet B, 205. abdominal cavity B, 206. powder delivery mouth B, 207. cavity B, 221. little piston B, 222. receipts powder groove B, 301. powder case C, 302. slide core C, 303. guide rail C, 304. powder inlet C, 305. abdominal cavity C, 306. powder delivery mouth C, 307. cavity C, 321. little piston C, 322. receipts powder groove C, 402. slide core D, 410. gear D, 413. axle D, 414. shaft coupling D, 415. step-down gear D, 416. motor D, 419. tooth bar D, 421. little piston D, 423. bent axle D, 424. shaft coupling E, 425. step-down gear E, 427. connecting rod D.
Embodiment
As shown in Fig. 3～Figure 13, it is 3D printer powder feeder unit embodiment, in the lower section of powder case (101), it is provided with cavity, in cavity, has slide core, in slide core, have abdominal cavity; Communicate with powder inlet above cavity, slide core in cavity can slide anteroposterior in the cavities, when slide core retrogressing, its abdominal cavity and powder inlet are connected, stand-by powder (2) enters in abdominal cavity, when slide core advance, its abdominal cavity and powder delivery mouth are connected, stand-by powder (2) is told out through powder delivery mouth from abdominal cavity, and namely powder feeder unit (1) is for paving powder doctor blade device (7) is for powder, slide core often completes a to-and-fro movement, and powder feeder unit (1) just completes once for powder circulation; For powder amount number by the volumetric void fraction in abdominal cavity.
As shown in Figure 3, Figure 4, powder case (101) bottom and bottom (103) form cavity (107), and cavity (107) top communicates with powder inlet (104), and the lower section of cavity (107) one end is powder delivery mouth (106); The shape of slide core (102) is tabular, is provided with abdominal cavity (105) in slide core (102), slide core (102) can in cavity (107) slide anteroposterior; When slide core (102) retrogressing, its abdominal cavity (105) are connected with powder inlet (104), stand-by powder (2) will enter in abdominal cavity (105), when slide core (102) advance, its abdominal cavity (105) are connected with powder delivery mouth (106), stand-by powder (2) is just told out through powder delivery mouth (106) from abdominal cavity (105).Namely powder feeder unit (1) is for paving powder doctor blade device (7) is for powder; When slide core (102) retreats, the size of its backway determines the size of abdominal cavity (105) with powder inlet (104) mistake powder area, cross powder area big, just big for powder amount, cross powder area little, just little for powder amount, slide core (102) retreats, the distance of advance can accurately control, so, also can accurately ensure for powder amount.
As shown in Figure 8, the bottom of powder case (101), bottom (103), cavity (107), slide core (102) and abdominal cavity (105) are inclination formula structure; This structure is more suitable for the poor 3D printer of powder mobility.
As shown in Figure 7, more accurate in order to ensure for powder amount, a movable lug plate (117) is set in the front end of slide core (102), movable lug plate (117) is inlaid in slide core (102), slide core (102) is utilized to drag motion before and after movable lug plate (117) with the frictional force of movable lug plate (117), the body of movable lug plate (117) and slide core (102) forms the abdominal cavity (105) of variable volume, the dynamic volume change controlling abdominal cavity (105) of position holder that slide core (102) is used retrogressing, advanced; The volume in abdominal cavity (105) is the measurer for delivering powder, and the volume of abdominal cavity (105) can accurately control, so, more accurate for powder metering.
As shown in Fig. 5, Fig. 6, Fig. 7, slide core (102) is provided with tooth bar (119); Motor (116) drives slide core (102) front-rear reciprocation movement by step-down gear (115), shaft coupling (114), axle (113), gear (110) and tooth bar (119); Motor (116) can be servomotor, stepper-motor or other motor; The driving of slide core (102) can also be realized by other auxiliarypower of printer self, as used reciprocating power of paving powder doctor blade device (7) etc.
As shown in Fig. 5, Fig. 6, Fig. 7, axle (113) is placed in powder inlet (104) place, and the upper cover of axle (113) is filled with spiral groove (112), and spiral groove (112) is similar to spring, and the two ends of spiral groove (112) and axle (113) are fixed; When axle (113) rotates, also drive spiral groove (112) to rotate, locally rotate or axially alter, floated by the wriggling power of spiral groove (112) and stir stand-by powder (2), make stand-by powder (2) add mobility.
As shown in Figure 7, movable lug plate (117) is provided with spacing pin (118); The effect of spacing pin (118) is the limit position of restriction movable lug plate (117).
As shown in Fig. 3, Fig. 4, Fig. 5, having skylight (108) on the base plate of powder case (101), skylight (108) are corresponding up and down with powder delivery mouth (106); To reduce the lower flow resistance of powder.
As shown in Figure 6, powder inlet (104) periphery has ring groove, and ring groove is built with annular sealing strip (111).
As shown in Figure 9, Figure 10, at powder case B(201) lower section, have cavity B(207), cavity B(207) in have slide core B(202), slide core B(202) it is a little box-structure, slide core B(202) can move forward and backward along guide rail B203, slide core B(202) in have abdominal cavity B(205), abdominal cavity B(205) in have little piston B (221), little piston B (221) can move up and down, as slide core B(202) retreat, its abdominal cavity B(205) with powder inlet B(204) connect time, little piston B(221) descending, stand-by powder (2) enters abdominal cavity B(205) in, slide core B(202) front end block powder delivery mouth B(206 all the time), as slide core B(202) advance, its abdominal cavity B(205) with powder delivery mouth B(206) connect time, little piston B(221) upper row, by stand-by powder (2) from abdominal cavity B(205) through powder delivery mouth B(206) release, namely powder feeder unit (1) is for paving powder doctor blade device (7) is for powder, slide core B(202) often complete a to-and-fro movement, powder feeder unit (1) just completes once for powder circulation,For powder amount by little piston B(221) Stroke Control.
As shown in figure 11, in order to the time of saving, it is to increase efficiency, a set of powder feeding mechanism is each side set at forming cavity, when paving powder doctor blade device (7) is to left side, left side powder feeding, when paving powder doctor blade device (7) is to right side, right side powder feeding, right-hand member has powder case B(201), powder case B(201) lower section have cavity B(207), cavity B(207) in have slide core B(202), slide core B(202) in have abdominal cavity B(205), abdominal cavity B(205) in have little piston B(221), left end also has powder case C(301), powder case C(301) lower section have cavity C(307), cavity C have slide core C(302 in (307)), slide core C(302) in have abdominal cavity C(305), abdominal cavity C(305) in have little piston C(321), slide core B(202) can along guide rail B(203) movable, little piston B (221) can move up and down, as slide core B(202) retreat, its abdominal cavity B(205) with powder inlet B(204) connect time, little piston B(221) descending, stand-by powder (2) enters abdominal cavity B(205) in, slide core B(202) front end block powder delivery mouth B(206 all the time), as slide core B(202) advance, its abdominal cavity B(205) with powder delivery mouth B(206) connect time, little piston B(221) upper row, by stand-by powder (2) from abdominal cavity B(205) through powder delivery mouth B(206) release, namely powder feeder unit (1) supplies powder at right-hand member for spreading powder doctor blade device (7), slide core C(302) can along guide rail C(303) movable, little piston C (321) can move up and down, as slide core C(302) retreat, its abdominal cavity C(305) with powder inlet C(304) connect time, little piston C(321) descending, stand-by powder (2) enters abdominal cavity C(305) in, slide core C(302) front end block powder delivery mouth C(306 all the time), as slide core C(302) advance, its abdominal cavity C(305) with powder delivery mouth C(306) connect time, little piston C(321) upper row, by stand-by powder (2) from abdominal cavity C(305) through powder delivery mouth C(306) release, namely powder feeder unit (1) supplies powder at left end for spreading powder doctor blade device (7).
As shown in figure 12, powder delivery mouth B(206) and powder delivery mouth C(306) lower section, it is respectively equipped with and receives powder groove B(222) and receive powder groove C(322), slide core B(202) and slide core C(302) front end also cut short one piece separately, as slide core B(202) retreat, its abdominal cavity B(205) to powder inlet B(204) lower section time, slide core B(202) front end no longer block powder delivery mouth B(206), spread the unnecessary powder of powder doctor blade device (7) and just drain to receipts powder groove B(222) in, as slide core C(302) retreat, its abdominal cavity C(305) to powder inlet C(304) lower section time, slide core C(302) front end also no longer block powder delivery mouth C(306), spread the unnecessary powder of powder doctor blade device (7) and also just drain to receipts powder groove C(322) in.
As shown in figure 13, little piston B(221) by motor D (416), step-down gear D(415), shaft coupling D(414), bent axle D(423), connecting rod D(424) drive; Little piston D(421) can also secondary with screw-nut, rack-and-pinion is secondary etc., and other type of drive drives, it is also possible to be used as power with other auxiliarypower of the machine, as with slide core, doctor blade device common power etc.
As shown in figure 13, slide core D(402) it is provided with tooth bar (119); Motor (116) drives slide core D(402 by step-down gear (115), shaft coupling (114), axle (113), gear (110) and tooth bar (119)) front-rear reciprocation movement;Motor (116) can be servomotor, stepper-motor or other motor; Slide core D(402) driving can also realize by other auxiliarypower of printer self, as used reciprocating power etc. of paving powder doctor blade device (7).
Claims (7)
1. slide core powder feeding formula 3D printer powder feeder unit, comprise: powder case (101), cavity, slide core, abdominal cavity, powder inlet and powder delivery mouth, it is characterized in that: the lower section of powder case (101) is provided with cavity, slide core is had in cavity, slide core has four kinds of structure formations, respectively with slide core (102), slide core B(202), slide core C(302) and slide core D(402) represent in slide core, there is abdominal cavity, also there are three kinds of structure formations in abdominal cavity, is abdominal cavity (105), abdominal cavity B(205 respectively) and abdominal cavity C(305); Communicate with powder inlet above cavity, slide core in cavity can slide anteroposterior in the cavities, when slide core retrogressing, its abdominal cavity and powder inlet are connected, stand-by powder (2) enters in abdominal cavity, and when slide core advance, its abdominal cavity and powder delivery mouth are connected, stand-by powder (2) is told out through powder delivery mouth from abdominal cavity, namely powder feeder unit (1) is for paving powder doctor blade device (7) is for powder, slide core often completes a to-and-fro movement, powder feeder unit (1) just complete once for powder circulation, for powder amount number by the volumetric void fraction in abdominal cavity;
Its one: the shape of slide core (102) is tabular, is provided with abdominal cavity (105) in slide core (102), slide core (102) can in cavity (107) slide anteroposterior;
Its two: the bottom of powder case (101), bottom (103), cavity (107), slide core (102) and abdominal cavity (105) are inclination formula structure;
Its three: a movable lug plate (117) is set in the front end of slide core (102), movable lug plate (117) is inlaid in slide core (102), slide core (102) is utilized to drag motion before and after movable lug plate (117) with the frictional force of movable lug plate (117), the body of movable lug plate (117) and slide core (102) forms the abdominal cavity (105) of variable volume, the dynamic volume change controlling abdominal cavity (105) of position holder that slide core (102) is used retrogressing, advanced.
2. slide core powder feeding formula 3D printer powder feeder unit according to claim 1, at powder case B(201) lower section have cavity B(207), cavity B(207) in have slide core B(202), it is characterized in that: slide core B(202) it is a little box-structure, slide core B(202) can move forward and backward along guide rail B203, slide core B(202) in have abdominal cavity B(205), abdominal cavity B(205) in have little piston B (221), little piston B (221) can move up and down, as slide core B(202) retreat, its abdominal cavity B(205) with powder inlet B(204) connect time, little piston B(221) descending, stand-by powder (2) enters abdominal cavity B(205) in, slide core B(202) front end block powder delivery mouth B(206 all the time), as slide core B(202) advance, its abdominal cavity B(205) with powder delivery mouth B(206) connect time, little piston B(221) upper row, by stand-by powder (2) from abdominal cavity B(205) through powder delivery mouth B(206) release, namely powder feeder unit (1) is for paving powder doctor blade device (7) is for powder, for powder amount by little piston B(221) Stroke Control.
3. slide core powder feeding formula 3D printer powder feeder unit according to claim 2, at forming cavity, a set of powder feeding mechanism is each side set, when paving powder doctor blade device (7) is to left side, left side powder feeding, when paving powder doctor blade device (7) is to right side, right side powder feeding, it is characterized in that: right-hand member has powder case B(201), powder case B(201) lower section have cavity B(207), cavity B(207) in have slide core B(202), slide core B(202) in have abdominal cavity B(205), abdominal cavity B(205) in have little piston B(221), left end also has powder case C(301), powder case C(301) lower section have cavity C(307), cavity C has slide core C(302 in (307)), slide core C(302) in have abdominal cavity C(305), abdominal cavity C(305) in have little piston C(321),Slide core B(202) can along guide rail B(203) movable, little piston B (221) can move up and down, as slide core B(202) retreat, its abdominal cavity B(205) with powder inlet B(204) connect time, little piston B(221) descending, stand-by powder (2) enters abdominal cavity B(205) in, slide core B(202) front end block powder delivery mouth B(206 all the time), as slide core B(202) advance, its abdominal cavity B(205) with powder delivery mouth B(206) connect time, little piston B(221) upper row, by stand-by powder (2) from abdominal cavity B(205) through powder delivery mouth B(206) release, namely powder feeder unit (1) supplies powder at right-hand member for spreading powder doctor blade device (7), slide core C(302) can along guide rail C(303) movable, little piston C (321) can move up and down, as slide core C(302) retreat, its abdominal cavity C(305) with powder inlet C(304) connect time, little piston C(321) descending, stand-by powder (2) enters abdominal cavity C(305) in, slide core C(302) front end block powder delivery mouth C(306 all the time), as slide core C(302) advance, its abdominal cavity C(305) with powder delivery mouth C(306) connect time, little piston C(321) upper row, by stand-by powder (2) from abdominal cavity C(305) through powder delivery mouth C(306) release, namely powder feeder unit (1) supplies powder at left end for spreading powder doctor blade device (7).
4. slide core powder feeding formula 3D printer powder feeder unit according to claim 3, it is characterized in that: powder delivery mouth B(206) and powder delivery mouth C(306) lower section, it is respectively equipped with and receives powder groove B(222) and receive powder groove C(322), slide core B(202) and slide core C(302) front end also cut short one piece separately, as slide core B(202) retreat, its abdominal cavity B(205) to powder inlet B(204) lower section time, slide core B(202) front end no longer block powder delivery mouth B(206), spread the unnecessary powder of powder doctor blade device (7) and just drain to receipts powder groove B(222) in, as slide core C(302) retreat, its abdominal cavity C(305) to powder inlet C(304) lower section time, slide core C(302) front end also no longer block powder delivery mouth C(306), spread the unnecessary powder of powder doctor blade device (7) and also just drain to receipts powder groove C(322) in.
5. slide core powder feeding formula 3D printer powder feeder unit according to Claims 2 or 3 or 4, is characterized in that: little piston D(421) by motor E(426), step-down gear E(425), shaft coupling E(424), bent axle D(423), connecting rod D(427) drive.
6. slide core powder feeding formula 3D printer powder feeder unit according to claim 1 or 2 or 3, it is characterized in that: slide core D(402) be provided with tooth bar D(419), motor D (416) is by step-down gear D(415), shaft coupling D(414), axle D(413), gear D (410) and tooth bar D(419) drive slide core D(402) front-rear reciprocation movement.
7. slide core powder feeding formula 3D printer powder feeder unit according to claim 1 or 2 or 3 or 4, it is characterized in that: axle (113) is placed in powder inlet (104) place, the upper cover of axle (113) is filled with spiral groove (112), spiral groove (112) is similar to spring, the two ends of spiral groove (112) and axle (113) are fixed, when axle (113) rotates, also drive spiral groove (112) to rotate, locally rotate or axially alter, floated by the wriggling power of spiral groove (112) and stir stand-by powder (2), make stand-by powder (2) add mobility.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520824554.3U CN205310830U (en) | 2015-10-24 | 2015-10-24 | Smooth core send whitewashed formula 3D printer powder feeder unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520824554.3U CN205310830U (en) | 2015-10-24 | 2015-10-24 | Smooth core send whitewashed formula 3D printer powder feeder unit |
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| Publication Number | Publication Date |
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| CN205310830U true CN205310830U (en) | 2016-06-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520824554.3U Expired - Fee Related CN205310830U (en) | 2015-10-24 | 2015-10-24 | Smooth core send whitewashed formula 3D printer powder feeder unit |
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| CN (1) | CN205310830U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107774994A (en) * | 2016-08-27 | 2018-03-09 | 北京易加三维科技有限公司 | Automatically adjust the method that metal 3D printer supplies powder amount |
-
2015
- 2015-10-24 CN CN201520824554.3U patent/CN205310830U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107774994A (en) * | 2016-08-27 | 2018-03-09 | 北京易加三维科技有限公司 | Automatically adjust the method that metal 3D printer supplies powder amount |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160615 Termination date: 20171024 |