CN205103123U - Measure powder mobility's annular cylinder device under different temperatures - Google Patents
Measure powder mobility's annular cylinder device under different temperatures Download PDFInfo
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- CN205103123U CN205103123U CN201520914297.2U CN201520914297U CN205103123U CN 205103123 U CN205103123 U CN 205103123U CN 201520914297 U CN201520914297 U CN 201520914297U CN 205103123 U CN205103123 U CN 205103123U
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- annular cylinder
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Abstract
The utility model discloses a measure powder mobility's annular cylinder device under different temperatures, including annular cylinder, initiative friction pulley, driven friction pulley and camera, annular cylinder constitute by inner tube and urceolus, the urceolus is supported by initiative friction pulley and driven friction pulley, the axis of urceolus is parallel with the axis of initiatively friction pulley and driven friction pulley be equipped with temperature sensor on the annular cylinder inner wall, be equipped with electric heater and liquid medium in the urceolus, the initiative friction pulley by motor drive, the camera setting be close to the preceding glass terminal surface of annular cylinder to the preceding glass terminal surface of the annular cylinder of orientation, annular cylinder rear end face be provided with the inlet port with the exhaust hole for fill into the inert gas and the interior air of a section of thick bamboo of discharging. The utility model discloses simple structure, convenient operation can survey the angle of break of powder in the annular cylinder under the different temperatures in real time to this mobility of measureing the powder.
Description
Technical field
The utility model relates to a kind of measurement mechanism of powder fluidity, measures the circular-cylindrical device of powder fluidity under being specifically related to a kind of different temperatures.
Background technology
3D prints and also claims to increase material manufacture, is that of global advanced manufacture field rise over nearly 30 years integrates machinery, computing machine controls and the brand new digital molding fabrication techniques of materials processing.The parts design of traditional Facing to Manufacturing technique is become the brand-new design of performance oriented by it, is called as a manufacturing revolution now, is also the prior development direction of " made in China 2025 " ten in large field.
In recent years, comparatively quick for the development of the 3D printing technique of selective laser sintering (SLS), its middle berth powder is a requisite link in SLS.In paving powder process, dusty material needs to have come through the coordinated movement of various economic factors of powder feeding mechanism and Pu Fen mechanism, flow process is substantially: during shaping, under the preheat temperature of setting in advance, first spread one deck dusty material with roller on the table, then laser beam under control of the computer, according to the information of cross section profile, the powder at the solid section place of product is scanned, make the temperature of powder rise to fusing point, so the fusing of powder particle intersection, powder coheres mutually, progressively obtain each layer profile, finally form 3 D workpiece.In this process, the mobility of powder directly to have influence on the homogeneity of paving powder and the packing of paving bisque, the also quality of remote effect sintering 3 D workpiece.
At present, characterize the method for powder fluidity and mainly comprise the horn cupping that stops, rate of outflow method, the horn cupping that caves in, Carr slamp value method, shearing method etc., wherein stop horn cupping and rate of outflow method characterize powder fluidity the earliest.
The device of traditional measurement powder fluidity is by base, and funnel set collar, funnel, disk, stopwatch forms.During test powder fluidity, the powder of certain volume is poured in the funnel of band valve, after powder is stable, unclamp valve rapidly, and with the time that stopwatch record powder flows out, measure piling height and the powder accumulation base diameter of powder on disk, thus obtain angle of repose and flow velocity.The method artificial interference many factors, the result that impact is measured.At existing powder fluidity measurement mechanism, be mostly carry out in normal temperature, do not relate to the impact of different temperatures on powder.And in selective laser sintering paving powder process, temperature is the factor that must consider, and different temperatures has a great impact for powder fluidity.
Summary of the invention
In order to solve the problems of the technologies described above, the utility model provides a kind of structure simple, easy to operate, and measures the circular-cylindrical device of powder fluidity under the different temperatures can measured powder fluidity under different assigned temperature.
The technical solution adopted in the utility model is: comprise circular-cylindrical, active friction wheel, driven friction pulley and video camera, described circular-cylindrical is made up of inner core and urceolus, and inner core is for placing powder, and inner core is connected by gusset with urceolus; Described urceolus is supported by active friction wheel and driven friction pulley, the axis being parallel of the axis of urceolus and active friction wheel and driven friction pulley; Described video camera is arranged on the front glass end face near circular-cylindrical, and towards the front glass end face of circular-cylindrical; Described active friction wheel is connected with motor, and motor is connected with console respectively with video camera.
Measure in the circular-cylindrical device of powder fluidity under above-mentioned different temperatures, the inner tube wall of described circular-cylindrical is provided with temperature sensor, is provided with electric heater and liquid medium in circular-cylindrical urceolus; Temperature sensor is connected with console respectively with electric heater.
Measure in the circular-cylindrical device of powder fluidity under above-mentioned different temperatures, the rear shady face of described circular-cylindrical is provided with air admission hole and vent port, blocks respectively with valve, convenient inflation and exhaust.
Compared with prior art, the beneficial effects of the utility model are:
The utility model structure is simple, during use, only needs powder to join in circular-cylindrical, opens the air admission hole of rear shady face and the valve of vent port of circular-cylindrical, after being filled with a certain amount of inert gas, and valve beyond the Great Wall; Then, after making the temperature of inner core reach assigned temperature by the electric heater of urceolus, starter motor, active friction wheel drives circular-cylindrical to rotate, the angle of break of video camera shooting powder under circular-cylindrical rotates
real-time condition, thus analyze the mobility of powder, easy to operate.
Accompanying drawing explanation
Fig. 1 is section of structure of the present utility model.
Fig. 2 is the top plan view of circular-cylindrical of the present utility model.
In figure, 1-circular-cylindrical, 2-air admission hole, 3-temperature sensor, 4-active friction wheel, the driven friction pulley of 5-, 6-gusset, 7-liquid medium, 8-electric heater, 9-vent port, shady face after 10-, 11-front glass end face, 12-video camera.
Embodiment
Below in conjunction with accompanying drawing, the utility model is further described.
As shown in Figure 1, the utility model comprises circular-cylindrical 1, active friction wheel 4, driven friction pulley 5 and video camera 12.Described circular-cylindrical 1 is made up of inner core and urceolus, and inner core is for placing powder, and inner core is connected by gusset 6 with urceolus.Described urceolus is supported by active friction wheel 4 and driven friction pulley 5, the axis of urceolus and the axis being parallel of active friction wheel 4 and driven friction pulley 5; Described video camera 12 is arranged near the front glass end face 11 of circular-cylindrical 1, and towards the front glass end face 11 of circular-cylindrical 1; Described active friction wheel 5 is connected with motor; The inner core sidewall of described circular-cylindrical 1 is provided with temperature sensor 3, is provided with electric heater 8 and liquid medium 7 between the inner core of circular-cylindrical 1 and urceolus.Temperature sensor 3, video camera 12 are connected with console respectively with electric heater 8.
When the utility model uses, only need powder to join in circular-cylindrical, open the rear air admission hole 2 of shady face 10 of circular-cylindrical 1 and the valve of vent port 9, after being filled with a certain amount of inert gas, valve beyond the Great Wall; Then the electric heater 8 between inner core and urceolus, start heating, the real time temperature of inner core is fed back to console by the temperature sensor 3 that circular-cylindrical 1 inner core sidewall is arranged, and when the temperature of inner core reaches assigned temperature, stops heating; Starter motor, drives active friction wheel 4 to drive circular-cylindrical 1 to rotate, driven friction pulley 5 auxiliary rotary; In the process that circular-cylindrical 1 rotates, the angle of break of powder under circular-cylindrical rotates taken by video camera 12
situation, method of its shooting is: stick dark-coloured film at the rear shady face 10 of circular-cylindrical 1, and by the irradiation of bias light, the white powder that video camera 12 take and backlight form dark color and contrast, and feed back to console, are convenient to observation analysis.
Claims (4)
1. under a different temperatures, measure the circular-cylindrical device of powder fluidity, it is characterized in that: comprise circular-cylindrical, active friction wheel, driven friction pulley and video camera, described circular-cylindrical is made up of inner core and urceolus, and inner core is for placing powder, and inner core is connected by gusset with urceolus; Described urceolus is supported by active friction wheel and driven friction pulley, the axis being parallel of the axis of urceolus and active friction wheel and driven friction pulley; Described video camera is arranged near the front glass end face of circular-cylindrical, and towards the front glass end face of circular-cylindrical; Described active friction wheel is driven by motor, and motor is connected with console respectively with video camera.
2. measure the circular-cylindrical device of powder fluidity under different temperatures according to claim 1, it is characterized in that: the inner tube wall of described circular-cylindrical is provided with temperature sensor, between circular-cylindrical inner core and urceolus, be provided with electric heater and liquid medium; Described temperature sensor is connected with console respectively with electric heater.
3. measure the circular-cylindrical device of powder fluidity under different temperatures according to claim 1, it is characterized in that: by the mobility status of described video camera shooting powder in circular-cylindrical, and expressed the mobility of powder by the angle of break that flowing is formed.
4. measure the circular-cylindrical device of powder fluidity under different temperatures according to claim 1, it is characterized in that: the rear shady face of described circular-cylindrical is provided with air admission hole and vent port, blocks respectively with valve, convenient inflation and exhaust.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520914297.2U CN205103123U (en) | 2015-11-17 | 2015-11-17 | Measure powder mobility's annular cylinder device under different temperatures |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520914297.2U CN205103123U (en) | 2015-11-17 | 2015-11-17 | Measure powder mobility's annular cylinder device under different temperatures |
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| Publication Number | Publication Date |
|---|---|
| CN205103123U true CN205103123U (en) | 2016-03-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520914297.2U Expired - Fee Related CN205103123U (en) | 2015-11-17 | 2015-11-17 | Measure powder mobility's annular cylinder device under different temperatures |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106197359A (en) * | 2016-09-12 | 2016-12-07 | 上海理工大学 | The on-line measurement device and method of granule materials angle of repose in drum-type pulverizer |
| CN110389084A (en) * | 2019-07-29 | 2019-10-29 | 湘潭大学 | It is a kind of for measuring the microwave heating drum apparatus of powder fluidity under different temperatures |
| CN111965073A (en) * | 2020-09-23 | 2020-11-20 | 山西农业大学 | Agricultural material dynamic repose angle measuring device based on rotating drum |
| CN113447399A (en) * | 2021-06-23 | 2021-09-28 | 淄博清大粉体材料工程有限公司 | Rolling type powder flowability measuring device based on image processing |
-
2015
- 2015-11-17 CN CN201520914297.2U patent/CN205103123U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106197359A (en) * | 2016-09-12 | 2016-12-07 | 上海理工大学 | The on-line measurement device and method of granule materials angle of repose in drum-type pulverizer |
| CN106197359B (en) * | 2016-09-12 | 2019-01-01 | 上海理工大学 | The on-line measurement device and method at granule materials angle of repose in drum-type pulverizer |
| CN110389084A (en) * | 2019-07-29 | 2019-10-29 | 湘潭大学 | It is a kind of for measuring the microwave heating drum apparatus of powder fluidity under different temperatures |
| CN111965073A (en) * | 2020-09-23 | 2020-11-20 | 山西农业大学 | Agricultural material dynamic repose angle measuring device based on rotating drum |
| CN113447399A (en) * | 2021-06-23 | 2021-09-28 | 淄博清大粉体材料工程有限公司 | Rolling type powder flowability measuring device based on image processing |
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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: 20160323 Termination date: 20181117 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |