CN204461531U - A kind of Quick-forming paving powder amount sampling powder falling time detection device - Google Patents
A kind of Quick-forming paving powder amount sampling powder falling time detection device Download PDFInfo
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- CN204461531U CN204461531U CN201520181352.1U CN201520181352U CN204461531U CN 204461531 U CN204461531 U CN 204461531U CN 201520181352 U CN201520181352 U CN 201520181352U CN 204461531 U CN204461531 U CN 204461531U
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Abstract
The utility model discloses a kind of Quick-forming paving powder amount sampling powder falling time detection device, comprise flow of powder testing agency and timer, described flow of powder testing agency comprises fixed support and is fixedly connected on the upper powder sinking tube on fixed support, lower powder sinking tube and photoelectric sensor, light-permeable pipe is connected with between described upper powder sinking tube and lower powder sinking tube, the transmitting terminal of described photoelectric sensor and receiving end lay respectively at the both sides of light-permeable pipe, and the signal output part of described photoelectric sensor connects with the signal input part of timer.The utility model structure is simple, and realization is convenient and cost is low, and detection sensitivity is high, and accuracy of detection is high, fast response time, and without hysteresis phenomenon, reliability is high, not by the impact of extraneous other light sources, practical, is convenient to promote the use of.
Description
Technical field
The utility model belongs to Rapid Prototyping technique field, is specifically related to a kind of Quick-forming paving powder amount sampling powder falling time detection device.
Background technology
Automatic power spreading high energy beam selective melting technology is the direct 3D printing technique of metal parts that newly-developed gets up, its principle utilizes computing machine to three-dimensional CAD model layering and carries out cross section information process, then cross-section data is inputted in 3D printer, 3D printer successively spreads according to cross-section data and send metal powder and utilize high energy beam to melt powder bed selection area, and all cross sections obtain the Three-dimensional Entity Components of project organization shape after successively melting superposition forming.Paving powder process is the critical process in automatic power spreading high energy beam selective melting technology, and the thickness of powder bed and the forming effect of homogeneity to forming technology and whole part have significant impact.In forming process, the thick bisque thickness that must obtain with part model computing machine subdivision of actual paving bisque is consistent, and paving powder powder amount has decisive influence to bisque thickness.But because paving powder powder amount is difficult to carry out directly accurately detecting, in scraper plate conventional at present/chip paving powder method, adopt Pu Fen mechanism at paving powder platform upper berth powder, paving powder scraping blade is installed in Pu Fen mechanism, if paving powder powder amount too small appearance paving powder region paving powder is incomplete, the error of part forming size can be caused, part forming failure can be caused time serious, and spread the excessive powder that causes of powder powder amount and waste, part forming termination that is shaped because of scarce powder can be caused time serious, have a strong impact on the stability of high energy beam selective melting technique, formation of parts usually therefore existing defects or scrap.
In order to overcome the above problems, someone adopts Weighing method to detect paving powder powder amount, but less owing to spreading powder powder amount at every turn, and be difficult to accurate measurement, simultaneously Weighing mechanism complex structure, cost is high, poor reliability; Also someone adopts quantitative powder delivery method to determine paving powder powder amount, but owing to lacking flexibility, be difficult to compensate adjustment according to actual conditions in real time to powder amount, if paving powder amount is less, paving powder region paving powder is incomplete, the error of part forming size can be caused, part forming failure can be caused time serious, part forming failure time serious, can be caused, if thick in order to ensure paving bisque, using 2 ~ 4 times needs powder amount to carry out paving powder, can cause powder serious waste again.For this reason, someone proposes and open powder falling mouth on paving powder platform again, sampling Detection is carried out determine the method totally spreading powder amount to paving powder amount, establish paving powder amount sampling powder falling time and the digital model totally spreading powder magnitude relation, the paving powder amount sampling powder falling time is detected, just can calculate according to paving powder amount sampling powder falling time and the overall digital model spreading powder magnitude relation and totally spread powder amount, but, also do not have structure simple in prior art, realization is convenient and cost is low, detection sensitivity is high, accuracy of detection is high, fast response time, without hysteresis phenomenon, the Quick-forming paving powder amount sampling powder falling time detection device that reliability is high.
Utility model content
Technical problem to be solved in the utility model is for above-mentioned deficiency of the prior art, there is provided a kind of Quick-forming to spread powder amount sampling powder falling time detection device, its structure is simple, and realization is convenient and cost is low, detection sensitivity is high, accuracy of detection is high, fast response time, without hysteresis phenomenon, reliability is high, not by the impact of extraneous other light sources, practical, be convenient to promote the use of.
For solving the problems of the technologies described above, the technical solution adopted in the utility model is: a kind of Quick-forming paving powder amount sampling powder falling time detection device, it is characterized in that: comprise flow of powder testing agency and timer, described flow of powder testing agency comprises fixed support and is fixedly connected on the upper powder sinking tube on fixed support, lower powder sinking tube and photoelectric sensor, light-permeable pipe is connected with between described upper powder sinking tube and lower powder sinking tube, the transmitting terminal of described photoelectric sensor and receiving end lay respectively at the both sides of light-permeable pipe, the signal output part of described photoelectric sensor connects with the signal input part of timer.
Above-mentioned a kind of Quick-forming paving powder amount sampling powder falling time detection device, is characterized in that: described upper powder sinking tube and lower powder sinking tube are all fixedly connected on fixed support by nut vertical, and described photoelectric sensor level is fixedly connected on fixed support.
Above-mentioned a kind of Quick-forming paving powder amount sampling powder falling time detection device, it is characterized in that: described support bracket fastened top is provided with the upper fixed orifice kept supplying powder sinking tube and pass, described upper powder sinking tube passes upper fixed orifice and is fixedly connected on fixed support by two nut vertical laid respectively at bottom upper fixed orifice top and upper fixed orifice; Described support bracket fastened bottom is provided with the lower fixed hole passed for lower powder sinking tube, and described lower powder sinking tube is passed lower fixed hole and is fixedly connected on fixed support by two nut vertical laid respectively at bottom lower fixed hole top and lower fixed hole.
Above-mentioned a kind of Quick-forming paving powder amount sampling powder falling time detection device, it is characterized in that: described support bracket fastened side is provided with the side fixed orifice supplying the signal output part of photoelectric sensor to pass, the bottom that described support bracket fastened side is positioned at side fixed orifice is provided with the horizontal ledge protruded to lateral inner, and the signal output part of described photoelectric sensor is passed side fixed orifice and is fixedly connected on fixed support by the mode level be fixedly connected with horizontal ledge.
Above-mentioned a kind of Quick-forming paving powder amount sampling powder falling time detection device, is characterized in that: described light-permeable pipe clamp is connected between powder sinking tube and lower powder sinking tube.
Above-mentioned a kind of Quick-forming paving powder amount sampling powder falling time detection device, is characterized in that: described light-permeable pipe is transparent glass tube.
The utility model compared with prior art has the following advantages:
1, structure of the present utility model is simple, rationally novel in design, and realization is convenient and cost is low.
2, the utility model detects by photoelectric sensor the time that powder flows through light-permeable pipe, have that detection sensitivity is high, accuracy of detection is high, fast response time, high without hysteresis phenomenon, reliability, not by the advantage such as impact of extraneous other light sources.
3, the utility model adopts photoelectric sensor detection powder to flow through the time of light-permeable pipe, precise time data can being provided for spreading powder amount according to the paving powder amount sampling powder falling time with the digital model calculated population totally spreading powder magnitude relation, laying a good foundation for realizing the real-time fine compensation adjustment of forming process paving powder amount.
5, the utility model is applied to carries out sampling Detection to determine totally spreading in the method for powder amount to paving powder amount, and be applied in the high energy beam selective melting technology of Quick-forming, existing paving powder system can be solved and cannot learn current paving powder powder amount, cause the problems such as the complete and powder waste of paving powder region paving powder, part forming precision and quality can be improved.
6, of the present utility model practical, result of use is good, is convenient to promote the use of.
In sum, structure of the present utility model is simple, and realization is convenient and cost is low, and detection sensitivity is high, and accuracy of detection is high, fast response time, and without hysteresis phenomenon, reliability is high, not by the impact of extraneous other light sources, practical, is convenient to promote the use of.
Below by drawings and Examples, the technical solution of the utility model is described in further detail.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is using state schematic diagram of the present utility model.
Description of reference numerals:
1-fixed support; 2-upper powder sinking tube; 3-lower powder sinking tube;
4-photoelectric sensor; 5-light-permeable pipe; 6-paving powder platform;
7-timer; 8-powder; 9-nut;
10-upper fixed orifice; 11-lower fixed hole; 12-side fixed orifice;
13-horizontal ledge.
Embodiment
As shown in Figure 1, the utility model comprises flow of powder testing agency and timer 7, described flow of powder testing agency comprises fixed support 1 and is fixedly connected on upper powder sinking tube 2, lower powder sinking tube 3 and the photoelectric sensor 4 on fixed support 1, light-permeable pipe 5 is connected with between described upper powder sinking tube 2 and lower powder sinking tube 3, the transmitting terminal of described photoelectric sensor 4 and receiving end lay respectively at the both sides of light-permeable pipe 5, and the signal output part of described photoelectric sensor 4 connects with the signal input part of timer 7.
As shown in Figure 1, in the present embodiment, described upper powder sinking tube 2 and lower powder sinking tube 3 are all vertically fixedly connected on fixed support 1 by nut 9, and described photoelectric sensor 4 level is fixedly connected on fixed support 1.
As shown in Figure 1, in the present embodiment, the top of described fixed support 1 is provided with the upper fixed orifice 10 kept supplying powder sinking tube 2 and pass, and described upper powder sinking tube 2 passes upper fixed orifice 10 and is vertically fixedly connected on fixed support 1 by two nuts 9 laid respectively at bottom upper fixed orifice 10 top and upper fixed orifice 10; The bottom of described fixed support 1 is provided with the lower fixed hole 11 passed for lower powder sinking tube 3, and described lower powder sinking tube 3 is passed lower fixed hole 11 and is vertically fixedly connected on fixed support 1 by two nuts 9 laid respectively at bottom lower fixed hole 11 top and lower fixed hole 11.
As shown in Figure 1, in the present embodiment, the side of described fixed support 1 is provided with the side fixed orifice 12 supplying the signal output part of photoelectric sensor 4 to pass, the bottom that the side of described fixed support 1 is positioned at side fixed orifice 12 is provided with the horizontal ledge 13 protruded to lateral inner, and the signal output part of described photoelectric sensor 4 is passed side fixed orifice 12 and is fixedly connected on fixed support 1 by the mode level be fixedly connected with horizontal ledge 13.
As shown in Figure 1, in the present embodiment, described light-permeable pipe 5 is connected between powder sinking tube 2 and lower powder sinking tube 3.Described light-permeable pipe 5 is transparent glass tube.
As shown in Figure 2, when the utility model uses, paving powder platform 6 is opened the pore that a diameter matches with the caliber of upper powder sinking tube 2, upper powder sinking tube 2 is fixed on pore place, and make the upper orifice of powder sinking tube 2 exceed the upper surface 0 ~ 2mm of paving powder platform 6; After starting to spread powder, pawnshop powder scraping blade is through the upper orifice of upper powder sinking tube 2, the powder 8 exceeding the upper orifice of upper powder sinking tube 2 flows out through upper powder sinking tube 2, light-permeable pipe 5 and lower powder sinking tube 3 successively, the signal that photoelectric sensor 4 pairs of powder 8 flow through light-permeable pipe 5 detects in real time and the signal detected is exported to timer 7 in real time, timer 7 starts timing when photoelectric sensor 4 starts output detections signal, and stop timing when the detection signal that it is exported to by photoelectric sensor 4 disappears, thus timing obtains the time that powder 8 flows through light-permeable pipe 5.Owing to being blinded by the propagation path of light of light-permeable pipe 5 when powder 8 flows through light-permeable pipe 5, therefore photoelectric sensor 4 has a detection signal, and when powder 8 has flowed, the detection signal of photoelectric sensor 4 will disappear.
The above; it is only preferred embodiment of the present utility model; not the utility model is imposed any restrictions; every above embodiment is done according to the utility model technical spirit any simple modification, change and equivalent structure change, all still belong in the protection domain of technical solutions of the utility model.
Claims (6)
1. a Quick-forming paving powder amount sampling powder falling time detection device, it is characterized in that: comprise flow of powder testing agency and timer (7), described flow of powder testing agency comprises fixed support (1) and is fixedly connected on the upper powder sinking tube (2) on fixed support (1), lower powder sinking tube (3) and photoelectric sensor (4), light-permeable pipe (5) is connected with between described upper powder sinking tube (2) and lower powder sinking tube (3), the transmitting terminal of described photoelectric sensor (4) and receiving end lay respectively at the both sides of light-permeable pipe (5), the signal output part of described photoelectric sensor (4) connects with the signal input part of timer (7).
2. according to a kind of Quick-forming paving powder amount sampling powder falling time detection device according to claim 1, it is characterized in that: described upper powder sinking tube (2) and lower powder sinking tube (3) are all vertically fixedly connected on fixed support (1) by nut (9), and described photoelectric sensor (4) level is fixedly connected on fixed support (1).
3. according to a kind of Quick-forming paving powder amount sampling powder falling time detection device according to claim 2, it is characterized in that: the top of described fixed support (1) is provided with the upper fixed orifice (10) kept supplying powder sinking tube (2) and pass, described upper powder sinking tube (2) through upper fixed orifice (10) and by lay respectively at upper fixed orifice (10) top and upper fixed orifice (10) bottom two nuts (9) be vertically fixedly connected on fixed support (1); The bottom of described fixed support (1) is provided with the lower fixed hole (11) passed for lower powder sinking tube (3), and described lower powder sinking tube (3) is through lower fixed hole (11) and be vertically fixedly connected on fixed support (1) by two nuts (9) laying respectively at lower fixed hole (11) top and lower fixed hole (11) bottom.
4. according to a kind of Quick-forming paving powder amount sampling powder falling time detection device according to claim 2, it is characterized in that: the side of described fixed support (1) is provided with the side fixed orifice (12) supplying the signal output part of photoelectric sensor (4) to pass, the bottom that the side of described fixed support (1) is positioned at side fixed orifice (12) is provided with the horizontal ledge (13) protruded to lateral inner, the signal output part of described photoelectric sensor (4) is passed side fixed orifice (12) and is fixedly connected on fixed support (1) by the mode level be fixedly connected with horizontal ledge (13).
5., according to a kind of Quick-forming paving powder amount sampling powder falling time detection device according to claim 1, it is characterized in that: described light-permeable pipe (5) is connected between powder sinking tube (2) and lower powder sinking tube (3).
6., according to a kind of Quick-forming paving powder amount sampling powder falling time detection device according to claim 1, it is characterized in that: described light-permeable pipe (5) is transparent glass tube.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520181352.1U CN204461531U (en) | 2015-03-29 | 2015-03-29 | A kind of Quick-forming paving powder amount sampling powder falling time detection device |
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| CN201520181352.1U CN204461531U (en) | 2015-03-29 | 2015-03-29 | A kind of Quick-forming paving powder amount sampling powder falling time detection device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113740219A (en) * | 2021-08-24 | 2021-12-03 | 中核华辰建筑工程有限公司 | Raise dust detection device for job site |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113740219A (en) * | 2021-08-24 | 2021-12-03 | 中核华辰建筑工程有限公司 | Raise dust detection device for job site |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Xi'an Sailong Additive Technology Co.,Ltd. Assignor: XI'AN SAILONG METAL MATERIALS Co.,Ltd. Contract record no.: X2022980007870 Denomination of utility model: A detecting device for powder dropping time of powder spreading quantity sampling in rapid prototyping Granted publication date: 20150708 License type: Common License Record date: 20220615 |
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| EE01 | Entry into force of recordation of patent licensing contract | ||
| CP03 | Change of name, title or address |
Address after: Room 303-46, building a, Kairui, Fengcheng 12th Road, Xi'an Economic and Technological Development Zone, Shaanxi 710018 Patentee after: Xi'an Sailong Additive Technology Co.,Ltd. Address before: 710,200 Middle section of Jinggao West Road, Jingwei New City New Material Industrial Park, Xi'an Economic and Technological Development Zone, Shaanxi Province Patentee before: XI'AN SAILONG METAL MATERIALS Co.,Ltd. |
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| CP03 | Change of name, title or address |