CN103343340B - Powder feeding device - Google Patents
Powder feeding device Download PDFInfo
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- CN103343340B CN103343340B CN201310289321.3A CN201310289321A CN103343340B CN 103343340 B CN103343340 B CN 103343340B CN 201310289321 A CN201310289321 A CN 201310289321A CN 103343340 B CN103343340 B CN 103343340B
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Abstract
The invention provides a powder feeding device, and relates to the technical field of laser machining equipment. The powder feeding device comprises a main housing, a first buffer part and a second buffer part; the main housing comprises a connecting cylinder and a middle groove of which the bottom is a plane, the connecting cylinder is connected with the middle groove, and a bottom connecting place between the connecting cylinder and the middle groove is provided with a first set angle; the first buffer part comprises a concave plate, and the concave plate is arranged in the middle groove by a second set angle; the second buffer part comprises a flat plate, and the flat plate is covered on the upper end of the middle groove; the middle groove is gradually narrowed, and the tail end of the middle groove and the flat plate form a power outlet; and a gap is remained between the concave plate and the bottom of the middle groove to form a powder passing opening. The powder feeding device provided by the invention adopts an internal buffer structure, so that the requirement to an external buffer can be reduced, the volume can be reduced, the paving width of the clad powder can be exactly controlled, and the clad powder with even thickness can be paved.
Description
Technical field
The invention belongs to laser process equipment technical field, particularly relate to a kind of powder conveyer.
Background technology
At present, for the synchronous preposition powder feeding technology adopted in laser melting coating, laser beam and powder conveyer are fixed on same running gear and are synchronized with the movement, before laser melting coating, cladding powder is laid good, powder feeding type of drive generally has gravity powder feeding and pneumatic powder feeding two kinds, cladding powder directly to spray or laid in cladding substrate surface by the ejection of powder conveyer from powder conveying pipe end, and most of powder conveyer is a copper pipe or perforate copper billet.When adopting pneumatic powder feeding, knowing from experience and affecting the laid of powder, therefore in the middle of powder feeding pipes, add a snubber and filter out gas due to residual gas in pipe, this damper volume is large and placement is inconvenient.When adopting the curve of wide light spot laser bundle non-directional more complicated of cladding on cladding base material, synchronous preposition paving powder be reached, then need the cladding powder of laid larger width and powder conveyer from laser beam as far as possible close to.But due to the existence of inertia, when adopting gravity powder feeding and pneumatic powder feeding, high-density cladding powder from powder conveyer out after, cladding substrate surface can be become scattered about with an angle of inclination, thus make the laid width of cladding powder be difficult to control and powder thickness is uneven; If powder conveyer from laser beam too close to, then cladding powder is just melted falling cladding substrate surface, does not reach effects preset.Thus the laser melting coating effect obtained is difficult to.
Summary of the invention
In view of this, the invention reside in and provide a kind of powder conveyer, adopt external buffer to solve in above-mentioned prior art, volume is excessive and placement is inconvenient, the laid width of powder and the unmanageable problem of laid thickness.
For solving the problem, the invention provides a kind of powder conveyer, comprising main housing, the first buffer unit and the second buffer unit;
Described main housing comprises connecting cylinder and bottom is the middle trough of plane, and the bottom surface of described connecting cylinder is connected with the first set angle with bottom described middle trough;
Wherein, the scope of the first set angle is between 90 ° to 180 °.
Described first buffer unit comprises notch board, and notch board is arranged on the inside of described middle trough with the second set angle;
Described second buffer unit comprises flat board, and flat board covers described middle trough upper end;
Wherein, described middle trough constriction gradually, forms meal outlet at its end and described flat board;
Wherein, between the bottom of described notch board and described middle trough, leave space, form logical powder mouth.
Described both sides, notch board upper end and described middle trough leave venting hole.
Described notch board comprises middle plane and both wings, and both wings indent;
Wherein, described notch board both wings indent scope strengthens gradually, and make notch board plane from top to bottom, width reduces gradually.
There is angle in described notch board and described connecting cylinder bottom surface;
Wherein, the scope of described angle is between 30 ° to 150 °.
Described second buffer unit also comprises the folder lid and the second clamping plate that are connected with flat board.
Described middle trough upper end is provided with placement plate.
Described second clamping plate clip is on described placement plate.
Described folder lid lid is clipped in the upper end of described middle trough and described meal outlet.
Described first buffer unit also comprises the first clamping plate be connected with notch board, and the first clamping plate lid is clipped in described connecting cylinder upper end.
Described venting hole is used for the installation and removal of described first buffer unit and described second buffer unit.
The laid powder of described powder conveyer is between 80 order ~ 400 orders.
The width of described meal outlet is between 1mm ~ 40mm.
Laser coating and powder feeding device in the present invention, has the following advantages:
1. do not need to connect external buffer, reduce device volume, be convenient to install, place.
2. can control the laid width of cladding powder accurately, the uniform cladding powder of laid thickness.
Figure of description
Fig. 1 is structure principle chart;
Fig. 2 is the front view of main housing;
Fig. 3 is the side-view of first-level buffer parts;
Fig. 4 is the front view of notch board;
Fig. 5 is the front view of level 2 buffering parts.
Embodiment
The invention provides a kind of laser coating and powder feeding device, need external buffer to solve, accurately can not control the laid width of cladding powder, can not the problem of the uniform cladding powder of laid thickness
The following description and drawings illustrate specific embodiment of the invention scheme fully, to enable those skilled in the art to put into practice them.Other embodiments can comprise structure, logic, fixing assembling process and other change.Embodiment only represents possible change.Unless explicitly requested, otherwise independent parts and function are optional, and the order of operation can change.The part of some embodiments and feature can be included in or replace part and the feature of other embodiments.The scope of embodiment of the present invention comprises the gamut of claims, and all obtainable equivalent of claims.If in fact disclose the embodiment more than, it not the scope that automatically will limit this application.
Refer to Fig. 1 to Fig. 5, each structural representation of a kind of powder conveyer that Fig. 1 to Fig. 5 provides for the embodiment of the present invention.
Wherein each Reference numeral is, 1-is dull and stereotyped, and 2-second buffer unit, 3-covers folder, 4-first buffer unit, 5-first clamping plate, 6-connecting cylinder, 7-venting hole, 8-main housing, 9-intaglio plate, and 10-leads to powder mouth, 11-middle trough, 12-meal outlet, 13-opening, 14-second clamping plate.
The invention provides a kind of powder conveyer, comprise main housing 8, first buffer unit 4; Second stage buffer unit 2,
Wherein, main housing 8 comprises connecting cylinder 6, middle trough 11,
Described connecting cylinder 6 for bottom be the tubular hollow structure of plane, wherein, the structure of connecting cylinder 6 can be square, circular or other tubular structures, and concrete determines according to powder conveying pipe orifice configuration.Connecting cylinder 6 can be channel-shaped structure, do not bind in upper end, need to clamp first clamping plate 5 outside connecting cylinder, be used for covering the upper end open of connecting cylinder 6, make in the process of powder by connecting cylinder 6, can not produce leakage, the first clamping plate 5 are clamped in outside connecting cylinder 6 and belong to flexible connection, can move on connecting cylinder 6.
Described middle trough 11 for bottom be the channel-shaped no ceiling hollow structure of plane, and middle trough is along base plane constriction gradually, meal outlet 12 is combined to form with second stage buffer unit 2, placement plate is extended in middle trough upper end, be used for the flat board of support second buffer unit, for the clip of the second buffer unit second clamping plate.
Middle trough 11 is passed through at outer setting grab with connecting cylinder 6, and mutually hold and make it connect completely, the base plane of connecting cylinder 6 and middle trough 11 exists the first set angle, and the scope of angle is 90 ° to 180 °.Wherein, the method for attachment of connecting cylinder 6 and middle trough 11, can also adopt other optional mode of connection, such as, weld.
First buffer unit 4, comprises notch board 9, and notch board 9 comprises middle plane and both wings, both wings indent, indent carries out bending relative to the powder direction sprayed into, and both wings indent scope strengthens gradually, make the middle plane of notch board 9 from top to bottom, width reduces gradually, is formed wide at the top and narrow at the bottom.Middle plane end and the middle trough 11 of notch board leave space, and it forms logical powder mouth 10.Described both sides, notch board upper end and described middle trough leave venting hole.Except logical powder mouth 10 and venting hole, notch board 9 and middle trough 11 seal completely, and powder can only be carried to meal outlet 12 direction by logical powder mouth 10.Whole notch board 9 is arranged on the inside of middle trough 11 with the second set angle, the second set angle is become relative angle with connecting cylinder 6 base plane by notch board 9 middle plane, and angular range is between 30 ° to 150 °.Wherein, the method that notch board 9 arranges middle trough 11 inside can be, a perforate 13 is established at connecting cylinder 6 and upper end, middle trough 11 base plane junction, first clamping plate are connected in one end that notch board 9 is wide, these first clamping plate can be same with connecting cylinder the first clamping plate 5 used, notch board 9 is inserted middle trough 11 by perforate 13 inner, first clamping plate 5 are clamped in the outside of connecting cylinder, a fixing effect is played to notch board 9, the mode of connection that first clamping plate 5 clamp, for being flexibly connected, can shift notch board onto accurate location.
Second buffer unit 2 comprises dull and stereotyped 1, flat board 1 covers the upper end of middle trough 11, be used for closed middle trough 11, and form meal outlet 12 with middle trough 11, can by being clamped in the both sides of middle trough 11 and meal outlet 12 at dull and stereotyped 1 connection cover folder 3, the second clamping plate connected by dull and stereotyped 1 fix dull and stereotyped 1 under being stuck in the placement plate that middle trough extends.
Describe composition and the annexation of the various piece of powder conveyer above in detail, next describe the principle of work of this powder conveyer in detail.
This powder conveyer is applicable to gravity powder feeding and pneumatic powder feeding, and except meal outlet 12 during use, outside venting hole, other structures are sealing.When connecting cylinder 6 connects logical tube cell, when starting to this device pulverized powder, first, powder is by connecting cylinder 6 dozens of middle plane at notch board 9 and both wings, the powder entered is played to the effect of a deceleration buffer, and powder is converged to logical powder mouth 10, with the gas that powder enters, can by both sides, notch board 9 upper end venting hole 7, be emitted on outside powder conveyer, then powder is by after first step buffer unit 4, after logical powder mouth 10, the powder of conveying is that width is certain, thickness is certain, continue through middle trough 11 to carry to meal outlet 12, converge in meal outlet 12 uniformly, then the buffering of dull and stereotyped 1 is passed through, cladding powder forms the powder belt that a uniform width equals meal outlet width and falls within cladding base material, finally along with the uniform motion of powder conveyer, formation width is certain, the uniform cladding powder of thickness.
The laid powder of this powder conveyer comprises the various powder of 80 order ~ 400 order, such as Fe base, Ni base, Co base, Cu base, ultra-fine overweight Wimet WC-Co powder, ultra-fine ultralight ceramic powder A1
2o
3, ZrO
2.
The laid width of this powder conveyer cladding powder is between 1mm ~ 40mm, and laid thickness is between 0.5mm ~ 10mm, and in these scopes, laid width and laid thickness can regulate arbitrarily.
This powder conveyer can adopt the metallic substance of the band flexibles such as copper sheet, and other resistant to elevated temperatures plastic ceramic materials are made.
For set forth all parts in embodiments of the present invention profile and be interconnected, within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (11)
1. a powder conveyer, is characterized in that, comprises main housing (8), the first buffer unit (4) and the second buffer unit (2); Described main housing (8) comprises the middle trough (11) that connecting cylinder and bottom are plane, described connecting cylinder (6) is connected with described middle trough (11), and is provided with the first set angle at the bottom junctions of described connecting cylinder (6) and described middle trough (11); Described first buffer unit (4) comprises notch board (9), and notch board (9) is arranged on the inside of described middle trough (11) with the second set angle; Described second buffer unit (2) comprises flat board (1), and dull and stereotyped (1) covers described middle trough (11) upper end; Described middle trough (11) constriction gradually, forms meal outlet (12) at its end and described flat board (1); Leave space between the bottom of described notch board (9) and described middle trough (11), form logical powder mouth (10); Venting hole (7) is left between described notch board (9) both sides, upper end and described middle trough (11).
2. powder conveyer according to claim 1, it is characterized in that, the scope of described first set angle is between 90 ° to 180 °.
3. powder conveyer according to claim 1, it is characterized in that, described notch board (9) comprises middle plane and both wings, and both wings indent.
4. powder conveyer according to claim 3, it is characterized in that, described notch board (9) both wings indent scope strengthens gradually, and make notch board (9) plane from top to bottom, width reduces gradually.
5. powder conveyer according to claim 4, is characterized in that, described notch board (9) and described connecting cylinder (6) bottom surface exist angle, and the scope of described angle is between 30 ° to 150 °.
6. powder conveyer according to claim 1, is characterized in that, described second buffer unit (2) also comprises the folder lid (3) and the second clamping plate (14) that are connected with dull and stereotyped (1).
7. powder conveyer according to claim 6, it is characterized in that, described middle trough (11) upper end is connected with placement plate, described folder lid (3) is clamped in the upper end of described middle trough (11) and described meal outlet (12), and described second clamping plate (14) clip is on described placement plate.
8. powder conveyer according to claim 1, it is characterized in that, described first buffer unit (4) also comprises the first clamping plate (5) be connected with notch board (9), and the first clamping plate (5) are clamped in described connecting cylinder (6) upper end.
9. powder conveyer according to claim 8, it is characterized in that, the upper end of described connecting cylinder (6) and described middle trough (11) junction is provided with perforate (13), and perforate (13) is for the installation and removal of described first buffer unit (4) and described second buffer unit (2).
10. according to powder conveyer described in any one in claim 1 to 9, it is characterized in that, the laid powder of described powder conveyer is between 80 order ~ 400 orders.
11., according to powder conveyer described in any one in claim 1 to 9, is characterized in that, the width of described meal outlet is between 1mm ~ 40mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310289321.3A CN103343340B (en) | 2013-07-10 | 2013-07-10 | Powder feeding device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310289321.3A CN103343340B (en) | 2013-07-10 | 2013-07-10 | Powder feeding device |
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| Publication Number | Publication Date |
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| CN103343340A CN103343340A (en) | 2013-10-09 |
| CN103343340B true CN103343340B (en) | 2015-05-20 |
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| CN201310289321.3A Active CN103343340B (en) | 2013-07-10 | 2013-07-10 | Powder feeding device |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105483693B (en) * | 2014-10-11 | 2018-07-17 | 沈阳大陆激光柔性制造技术有限公司 | A kind of dust feeder suitable for laser melting coating |
| CN105063614B (en) * | 2015-08-11 | 2017-11-10 | 山东能源重装集团大族再制造有限公司 | A kind of dust feeder and its application method |
| CN113894292B (en) * | 2021-09-30 | 2024-04-12 | 南京中科煜宸激光技术有限公司 | Powder feeding device and method for broadband laser cladding additive manufacturing |
| CN113862667B (en) * | 2021-09-30 | 2024-05-14 | 南京中科煜宸激光技术有限公司 | Multistage pressure relief device for broadband cladding additive manufacturing |
| CN114875403B (en) * | 2022-07-12 | 2022-09-16 | 北京煜鼎增材制造研究院有限公司 | Zero-speed powder feeding type laser surface cladding device and method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6343787A (en) * | 1986-08-12 | 1988-02-24 | Toyota Motor Corp | Buildup method |
| JPH0698506B2 (en) * | 1986-12-08 | 1994-12-07 | トヨタ自動車株式会社 | Method for forming dispersed alloy layer on metal substrate |
| JPH0252185A (en) * | 1988-08-16 | 1990-02-21 | Kawasaki Steel Corp | Laser beam welding method |
| CN2150214Y (en) * | 1992-09-21 | 1993-12-22 | 华中理工大学 | Dead-weight type laser molten-coated powder supplying device |
| JP3424538B2 (en) * | 1997-12-19 | 2003-07-07 | 日産自動車株式会社 | Powder supply equipment for laser cladding |
| JP3446577B2 (en) * | 1997-12-22 | 2003-09-16 | 日産自動車株式会社 | Powder supply equipment for laser cladding |
| GB2476835B (en) * | 2010-01-12 | 2012-02-01 | Rolls Royce Plc | Spray nozzle |
| GB2476836B (en) * | 2010-01-12 | 2011-11-23 | Rolls Royce Plc | Spray nozzle |
| CN203403150U (en) * | 2013-07-10 | 2014-01-22 | 山东能源机械集团大族再制造有限公司 | Powder feeding device |
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| C14 | Grant of patent or utility model | ||
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Owner name: SHANDONG ENERGY HEAVY EQUIPMENT GROUP DAZU REMANUF Free format text: FORMER NAME: SHANDONG ENERGY MACHINERY GROUP HAN S REMANUFACTURING CO., LTD. |
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| CB03 | Change of inventor or designer information |
Inventor after: Tantai Fanliang Inventor after: Li Xiyong Inventor after: Zhou Feng Inventor after: Yang Qingdong Inventor after: Zhang Yanliang Inventor after: Su Lunchang Inventor after: Dong Chunchun Inventor after: Kang Minqiang Inventor before: Li Xiyong Inventor before: Zhou Feng Inventor before: Yang Qingdong Inventor before: Zhang Yanliang Inventor before: Su Lunchang Inventor before: Dong Chunchun Inventor before: Tantai Fanliang Inventor before: Kang Minqiang |
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| COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: LI XIYONG ZHOU FENG YANG QINGDONG ZHANG YANLIANG SU LUNCHANG DONG CHUNCHUNTANTAI FANLIANG KANG MINQIANG TO: TANTAI FANLIANG LI XIYONG ZHOU FENG YANG QINGDONG ZHANG YANLIANG SU LUNCHANG DONG CHUNCHUN KANG MINQIANG |
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| CP03 | Change of name, title or address |
Address after: 271200 Shandong city of Xintai province Tai'an City Xindong town new road three Patentee after: Shandong Manufacturing Co., Ltd again of energy refitting big nation of group Address before: Tai'an City, Shandong Province town of 271222 east of Xintai new road three Patentee before: Shandong Energy Machinery Group Dazu Remanufacturing Co.,Ltd. |