CN203371037U - Special synchronous powder sending device for laser rapid forming machine - Google Patents
Special synchronous powder sending device for laser rapid forming machine Download PDFInfo
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- CN203371037U CN203371037U CN201320386610.0U CN201320386610U CN203371037U CN 203371037 U CN203371037 U CN 203371037U CN 201320386610 U CN201320386610 U CN 201320386610U CN 203371037 U CN203371037 U CN 203371037U
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- homogenizing tank
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Abstract
A special synchronous powder sending device for a laser rapid forming machine comprises a powder uniformizing tank and a powder conveying and throwing mechanism and is characterized in that a gas inlet pipe is arranged on the lower portion of the powder uniformizing tank, a powder sending pipe is arranged on the upper portion of the powder uniformizing tank, and the powder conveying and throwing mechanism comprises a powder conveying portion and a powder throwing portion. The powder conveying portion comprises a powder sending motor, a powder sending pipe, a powder sending screw and a powder storage hopper, wherein the powder sending screw is arranged in the powder sending pipe in a rotatable and sleeved mode, and the powder storage hopper is arranged on the power sending pipe. The powder throwing portion comprises a roll brush motor and a roll brush driven by the roll brush motor. Compared with the prior art, the special synchronous powder sending device has the advantages that due to the unique structural design, the special synchronous powder sending device is suitable for conveying various types of powder in large granularities or small granularities. The adjustment of powder sending concentration and the adjustment of the powder sending speed can be conveniently achieved. The special synchronous powder sending device is simple in structure, even and reliable in powder sending and easy to clean. Practices show that the synchronous powder sending device for the laser rapid forming machine can completely meet the requirement for laser rapid micro-molding powder sending.
Description
Technical field
The utility model relates to a kind of laser fast shaping machine special synchronous dust feeder, belongs to technical field of laser processing.
Background technology
The new technology of the multi-subject knowledges such as laser, material, CAD/CAM and automation control that laser fast shaping has been a kind of integrated use." addition " forming method that replaces traditional " removal " method of forming, can produce the high-precision workpiece of any complex object fast, and without any machining.Wherein adopt the laser sintered rapid shaping mode of synchronous powder feeding system, directly alloy powder is transported to laser molten pool, forming the functional part consistent with computer cad model shape, realized the quick manufacture from the design drawing to the functional part, is rapid shaping truly.This rapid shaping technique advantage is to have shortened greatly research, the development time of product, has reduced producing cost, in the national economy numerous areas, is just obtaining applying more and more widely
In rapid laser-shaping technique, alloy powder is transported in laser molten pool by dust feeder.The formed precision of shaping workpiece and surface quality directly depend on the precision of dust feeder conveying powder, have both made small powder feeding deviation also can cause the geometry of shaping workpiece, the obvious change of surface smoothness.Therefore, design and provide a kind of suitable dust feeder significant to Laser Rapid Prototyping System.
The Chinese patent communique has been announced a kind of dust feeder, patent announcement number is CN2758277, its technical scheme is: a kind of synchronized power feeding device for laser fast shaping, include the powder feeding screw be connected with the powder feeding motor, powder feeding screw is set with powder feeding pipe outward, and an end of powder feeding pipe is connected with motor casing, and the other end is connected with powder homogenizing tank, also be connected with powder storage bucket in powder feeding, the other end of powder feeding screw is positioned at powder homogenizing tank; It is characterized in that: be provided with the round brush motor on the outer wall on powder homogenizing tank right side, the output shaft of round brush motor connects round brush, and the radius of round brush is greater than 0.5～2 millimeter of spacing between round brush motor output shaft axle center and powder feeding screw; In powder homogenizing tank, bottom is provided with the stainless steel cloth dividing plate be connected with the powder homogenizing tank inwall; Be provided with a fan be connected with the end in powder homogenizing tank between the interior end of stainless steel cloth dividing plate and powder homogenizing tank; Be respectively arranged with intake valve and air outlet valve on the outer wall of the powder homogenizing tank left and right sides, be provided with an air gauge on its front panel; This installs between each parts and all adopts routine techniques to connect.
Its weak point is, bottom is provided with fan, in the situation that the fan bottom does not have supplemental air flow, fan efficiency is not high, and air inlet pipe is arranged on powder homogenizing tank one side in addition, although air-flow can produce disturbance, but air-flow is scrambling, can the air-flow of bottom fan be exerted an influence.In addition, electric fan easily accounts for powder when operation on blade, can have a strong impact on the operating efficiency of fan when use is of a specified duration, and in addition, the increase of fan has also increased production cost and the maintenance cost of equipment simultaneously.Also have, its round brush is arranged on powder feeding screw top, can cause like this part powder not kicked up by round brush and to fall in powder homogenizing tank, causes the powder particle size of kicking up the heterogeneity phenomenon to occur, thereby affects the Forming Quality of final products.
The utility model content
The technical problems to be solved in the utility model is exactly the deficiency for above-mentioned technology, and a kind of more effective and adjustable synchronous powder feeding system device that is suitable for laser fast shaping manufacture needs is provided.
The utility model solves the problems of the technologies described above adopted technical scheme: a kind of laser fast shaping machine special synchronous dust feeder, comprise powder homogenizing tank, and powder is carried powder spreading mechanism, it is characterized in that, and aforementioned powder tank bottom is provided with air inlet pipe, and top is provided with powder feeding pipe; Aforementioned powder carries powder spreading mechanism to comprise powder delivery section and powder spreading section.
Described powder delivery section comprises powder feeding motor, powder feeding pipe, powder feeding screw, powder storage bucket, and described powder feeding screw is sheathed in powder feeding pipe rotationally, and described powder storage bucket is arranged on powder feeding pipe.
Described powder spreading section comprises the round brush motor, and the motor-driven round brush of round brush.
Described powder homogenizing tank bottom is provided with powder outlet, and powder outlet is provided with the keying valve.
Described round brush is located at the powder feeding screw below, and round brush is apart from powder feeding screw vertical range 2-5mm.
Described air inlet pipe is two from main air inlet pipe punishment and is located at respectively the powder homogenizing tank two bottom sides;
Described powder homogenizing tank bottom is infundibulate, and is provided with the silk screen dividing plate at the infundibulate top;
Described powder homogenizing tank is provided with the air gauge that can monitor the powder homogenizing tank internal pressure.
Compared with prior art, the utility model has the advantage of: be applicable to the conveying of the either large or small powder of multiple variety classes, particle size.Can conveniently realize powder feeding concentration, powder feeding rate size adjustment.Powder feeding is evenly reliable, is easy to clean.The disturbance made progress by carrier gas self in addition, saved and in the prior art, will use fan to produce the link of disturbance, is proven this synchronized power feeding device for laser fast shaping and can meets the quick micro shaping powder feeding of laser requirement fully.
Description of symbols in figure:
1, powder homogenizing tank; 2, air gauge; 3, intake valve; 4, air inlet pipe; 5, discharging opening; 6, silk screen dividing plate; 7, powder feeding screw; 8, powder feeding pipe; 9, powder feeding motor; 10, powder; 11, powder storage bucket; 12, round brush motor; 13, round brush; 14, powder feeding pipe; 15, air outlet valve; 16, open and close valve.
The accompanying drawing explanation
Fig. 1 is the utility model structural principle schematic diagram.
The specific embodiment
Below in conjunction with accompanying drawing, embodiment is described in further detail the utility model.
Below by particular specific embodiment, embodiment of the present utility model is described, person skilled in the art scholar can understand other advantages of the present utility model and effect easily by the disclosed content of this specification.
Refer to Fig. 1.Notice, appended graphic the illustrated structure of this specification, ratio, size etc., equal contents in order to coordinate specification to disclose only, understand and read for person skilled in the art scholar, not in order to limit the enforceable qualifications of the utility model, therefore the technical essential meaning of tool not, the adjustment of the modification of any structure, the change of proportionate relationship or size, do not affecting under the effect that the utility model can produce and the purpose that can reach, all should still drop on the technology contents that the utility model discloses and obtain in the scope that can contain.Simultaneously, the position of quoting in this specification limits term, also only for ease of understanding of narrating, but not in order to limit the enforceable scope of the utility model, the change of its relativeness or adjustment, under without essence change technology contents, when also being considered as the enforceable category of the utility model.
The powder feeding screw 7 be connected with powder feeding motor 9, the outer powder feeding pipe 8 that is set with of powder feeding screw 7.One end of powder feeding pipe 8 is connected with motor casing, and the other end is connected with powder homogenizing tank 1.Also be connected with powder storage bucket 11 on powder feeding pipe 8.The other end of powder feeding screw 7 is positioned at powder homogenizing tank 1.Be provided with round brush motor 12 on the outer wall on powder homogenizing tank 1 right side.The output shaft of round brush motor 12 connects round brush 13.Round brush 13 is apart from powder feeding screw 7 vertical range 2mm.Powder homogenizing tank 1 bottom is infundibulate, and is provided with silk screen dividing plate 6 at the infundibulate top.Air inlet pipe 4 is two from the punishment of main air inlet pipe and is located at respectively powder homogenizing tank 1 two bottom sides, and powder homogenizing tank 1 top one side is provided with powder feeding pipe 14.Powder homogenizing tank 1 arranged outside has an air gauge 2.
A kind of laser fast shaping machine special synchronous dust feeder powder feeding operation principle of the present utility model is: the powder 10 in powder storage bucket 11 is in powder feeding screw 7 is transported to powder homogenizing tank 1, round brush motor 12 drives round brush 13 rotations, by the powder activated on powder feeding screw and break up and be distributed in powder homogenizing tank.Carrier gas (being generally argon gas), and is delivered to rapid prototyping system through carrier pipe 14 from air outlet valve 15 after powder mixes from air inlet pipe 4 in intake valve 3 enters powder homogenizing tank 1.Because carrier gas directly makes progress from the powder homogenizing tank dolly, can produce like this rough air, the interior powder of powder homogenizing tank 1 is fully mixed with carrier gas.The upwards rough air that silk screen dividing plate 6 produces carrier gas on the one hand evenly spreads in whole powder homogenizing tank 1, prevent on the other hand in heavy this device course of work of agglomerate powder, the conveying capacity that the rotating speed of adjusting powder feeding motor 9 can be regulated powder 10, realize the adjusting of powder feeding concentration.Control opening and turn-offing of intake valve 3 and air outlet valve 15, can control powder homogenizing tank 1 internal gas pressure size, realize the adjusting of powder transfer rate.After the rapid shaping end-of-job, pour out residual powder 10 in powder storage bucket 11, open intake valve 3, air outlet valve 15, powder feeding motor 9 and round brush motor 12, utilize carrier gas to be cleaned powder homogenizing tank.Round brush 13 rotates the residual powder that cleans the powder feeding screw surface and take out of from powder feeding pipe 8.Finally, open the keying valve 16 of being located at powder homogenizing tank 1 bottom, make the inner unnecessary powder of powder homogenizing tank 1 discharge from discharging opening 5, avoid because of task under powder kind Different Effects.
Claims (6)
1. a laser fast shaping machine special synchronous dust feeder, comprise powder homogenizing tank, and powder is carried powder spreading mechanism, it is characterized in that,
Aforementioned powder tank bottom is provided with air inlet pipe, and top is provided with powder feeding pipe;
Aforementioned powder carries powder spreading mechanism to comprise powder delivery section and powder spreading section.
2. a kind of laser fast shaping machine special synchronous dust feeder according to claim 1, it is characterized in that described powder delivery section comprises powder feeding motor, powder feeding pipe, powder feeding screw, powder storage bucket, described powder feeding screw is sheathed in powder feeding pipe rotationally, and described powder storage bucket is arranged on powder feeding pipe.
3. a kind of laser fast shaping machine special synchronous dust feeder according to claim 1, is characterized in that described powder spreading section comprises the round brush motor, and the motor-driven round brush of round brush.
4. a kind of laser fast shaping machine special synchronous dust feeder according to claim 1, is characterized in that described powder homogenizing tank bottom is provided with powder outlet, and powder outlet is provided with the keying valve.
5. a kind of laser fast shaping machine special synchronous dust feeder according to claim 3, is characterized in that described round brush is located at the powder feeding screw below, and round brush is apart from powder feeding screw vertical range 2-5mm.
6. according to any laser fast shaping machine of claim 1 to 5 special synchronous dust feeder, it is characterized in that described air inlet pipe is two from main air inlet pipe punishment and is located at respectively the powder homogenizing tank two bottom sides; Described powder homogenizing tank bottom is infundibulate, and is provided with the silk screen dividing plate at the infundibulate top; Described powder homogenizing tank is provided with the air gauge that can monitor the powder homogenizing tank internal pressure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320386610.0U CN203371037U (en) | 2013-06-26 | 2013-06-26 | Special synchronous powder sending device for laser rapid forming machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320386610.0U CN203371037U (en) | 2013-06-26 | 2013-06-26 | Special synchronous powder sending device for laser rapid forming machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203371037U true CN203371037U (en) | 2014-01-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320386610.0U Expired - Fee Related CN203371037U (en) | 2013-06-26 | 2013-06-26 | Special synchronous powder sending device for laser rapid forming machine |
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| CN (1) | CN203371037U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105500764A (en) * | 2014-09-30 | 2016-04-20 | 宁波胜克换向器有限公司 | Synchronous unloading structure of rotary powder molding press |
| CN107881499A (en) * | 2017-11-20 | 2018-04-06 | 成都大陆激光技术有限公司 | The multi-functional powder feeder of screw |
| CN110775354A (en) * | 2019-11-01 | 2020-02-11 | 巢湖学院 | A powder ration equipment for packing for chemical production |
-
2013
- 2013-06-26 CN CN201320386610.0U patent/CN203371037U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105500764A (en) * | 2014-09-30 | 2016-04-20 | 宁波胜克换向器有限公司 | Synchronous unloading structure of rotary powder molding press |
| CN105500764B (en) * | 2014-09-30 | 2017-06-23 | 宁波胜克换向器有限公司 | A kind of synchronous discharging structure of swirling powder moulding press |
| CN107881499A (en) * | 2017-11-20 | 2018-04-06 | 成都大陆激光技术有限公司 | The multi-functional powder feeder of screw |
| CN110775354A (en) * | 2019-11-01 | 2020-02-11 | 巢湖学院 | A powder ration equipment for packing for chemical production |
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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: 20140101 Termination date: 20150626 |
|
| EXPY | Termination of patent right or utility model |