CN213437182U - Anti-blocking type self-drying 3D printing powder turnover device - Google Patents
Anti-blocking type self-drying 3D printing powder turnover device Download PDFInfo
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- CN213437182U CN213437182U CN202022573460.7U CN202022573460U CN213437182U CN 213437182 U CN213437182 U CN 213437182U CN 202022573460 U CN202022573460 U CN 202022573460U CN 213437182 U CN213437182 U CN 213437182U
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Abstract
The application discloses prevent stifled formula from dry 3D printing powder turnover device includes: the powder storage bin is in an inverted cone shape, the top of the powder storage bin is provided with a powder inlet, and the bottom of the powder storage bin is provided with a powder outlet; the heating cover is wrapped and installed on the side surface of the powder storage bin; and the circular arc-shaped buffering cover is movably arranged at the bottom end in the powder storage bin through 4 supporting legs, and the circle center of the buffering cover faces downwards. The application provides an anti-blocking type is from dry 3D printing powder turnover device can heat the storage powder storehouse before or after the powder gets into the storage powder storehouse, lasts evenly carries the heat to effectively dehumidify and make the powder keep dry state, not only effectively avoid the powder card to hinder at the meal outlet, can also realize lasting stable transport dry powder to printing apparatus in, ensure to spread powder printing work high efficiency operation.
Description
Technical Field
The utility model relates to a 3D printing device technical field especially relates to a prevent stifled formula from dry 3D and print powder turnover device.
Background
Selective Laser Melting (SLM) is the most mainstream technological means in the metal 3D printing industry nowadays, has the advantages of high material utilization rate, wide applicable material range, capability of manufacturing parts with complex shapes and the like, and is a rapid molding technology with great development prospect. The main working principle is that a file obtained after three-dimensional modeling slicing is led into 3D printing equipment, metal powder smaller than 60 mu m is flatly spread by a scraper based on a powder feeding and spreading mode, and a high-energy laser is controlled by a computer to scan the outline layer by layer to stack and form a workpiece.
At present, in the last powder feeding formula 3D printing system at home and abroad, the pay-off mode all adopts from gravity blanking to spread among the powder device, and tiny metal powder easily oxidizes and wets in the turnover in-process, and this will lead to producing property ability and stability decline simultaneously, appear because of the powder reunion makes the powder outlet card hinder lead to the problem of unable continuous feed, finally lead to printing work to stop going on, seriously restrict the processing procedure reliability of printing process.
The utility model discloses a 3D printing apparatus is with storing up whitewashed pay-off container (application number 201820826121.5, grant bulletin number CN 208322118U, grant bulletin day 2019.01.04) is disclosed in "storing up whitewashed container" (application number 201820826121.5), and this container is through gravity powder falling mode transport powder completely, piles up to the bottom powder outlet back when the powder, will appear the powder outlet and open the difficulty, leads to out whitewashed control valve card even and hinders the damage. The powder that the pay-off was added even through the oven drying, still there is the moisture to bring in when getting into the container to its does not have the continuous heating drying function and will lead to the powder to cool off fast, makes the powder mobility that finally gets into to print the powder paving device not good, influences the effect of powder paving and printing.
SUMMERY OF THE UTILITY MODEL
It is an object of the present application to overcome the above problems or to at least partially solve or mitigate the above problems.
According to an aspect of this application, provide a prevent stifled formula from dry 3D printing powder turnover device, include:
the powder storage bin is in an inverted cone shape, the top of the powder storage bin is provided with a powder inlet, and the bottom of the powder storage bin is provided with a powder outlet;
the heating cover is wrapped and installed on the side surface of the powder storage bin; and
the arc-shaped buffering cover is movably mounted at the bottom end in the powder storage bin through 4 supporting legs, and the circle center of the buffering cover faces downwards.
Optionally, a powder inlet control valve is installed at the powder inlet, and a powder outlet control valve is installed at the powder outlet.
Optionally, a cleaning opening with a wide aperture and a cleaning opening cover matched with the cleaning opening are arranged at the top of the powder storage bin, and the powder inlet control valve are mounted on the cleaning opening cover.
Optionally, the powder storage device further comprises an inner cavity purging pipe installed in the powder storage bin, and the purging pipe is communicated with the air inlet at the bottom of the powder storage bin.
Optionally, a pressure relief valve is further arranged on the cleaning port cover.
Optionally, still include fork and transport the groove, store up the powder storehouse outside and be equipped with columniform outside protective housing, store up the powder storehouse through the bottom of outside protective housing erects on the fork transports the groove.
Optionally, the intra-cavity purge tube is an antistatic tube.
According to an aspect of the present application, there is provided an anti-blocking self-drying 3D printer, including: feeding device, shop powder device and as prevent stifled formula from dry 3D print powder turnover device, prevent stifled formula from dry 3D print powder turnover device advance whitewashed mouth with feeding device's play powder mouth links to each other, prevent stifled formula from dry 3D print powder turnover device's play powder mouth with shop's powder device advance the whitewashed mouth and link to each other.
Compared with the prior art, the beneficial effects of this application are as follows:
1. the application provides an anti-blocking type is from dry 3D printing powder turnover device can heat the storage powder storehouse before or after the powder gets into the storage powder storehouse, lasts evenly carries the heat to effectively dehumidify and make the powder keep dry state, not only effectively avoid the powder card to hinder at the meal outlet, can also realize lasting stable transport dry powder to printing apparatus in, ensure to spread powder printing work high efficiency operation.
2. The invention breaks through the difficult problem of unstable printing process caused by powder blockage in the powder feeding link of other upper powder feeding type printing equipment, and also synchronously breaks through the difficult problems of reduced and unstable printed product performance caused by the fact that the powder cannot be effectively dehumidified and dried in the storage and conveying links, and the dried powder can greatly reduce the residual quantity adhered to the inner wall of the tank body, thereby effectively reducing the waste of the powder and synchronously saving the cleaning time.
The above and other objects, advantages and features of the present application will become more apparent to those skilled in the art from the following detailed description of specific embodiments thereof, taken in conjunction with the accompanying drawings.
Drawings
Some specific embodiments of the present application will be described in detail hereinafter by way of illustration and not limitation with reference to the accompanying drawings. The same reference numbers in the drawings identify the same or similar elements or components. Those skilled in the art will appreciate that the drawings are not necessarily drawn to scale. In the drawings:
FIG. 1 is a schematic structural diagram of an anti-blocking self-drying 3D printing powder turnover device according to an embodiment of the application;
FIG. 2 is a left side view of the anti-blocking self-drying 3D printing powder turnover device shown in FIG. 1;
fig. 3 is a sectional view taken along a-a shown in fig. 2.
Reference numerals:
a powder inlet-1; a powder inlet control valve-2; a pressure relief valve-3; cleaning the port cover-4; cleaning a mouth-5;
a powder storage bin-6; a heating cover-7; a buffer cover-8; an outer protective shell-9; an air inlet-10;
a powder outlet-11; a powder outlet control valve-12; a forking groove-13; and (4) a cavity purging pipe-14.
Detailed Description
Fig. 1 is a schematic structural diagram of an anti-blocking self-drying 3D printing powder turnover device according to an embodiment of the present application. Referring to fig. 1, the application embodiment provides an anti-blocking formula is from dry 3D printing powder turnover device, includes: a powder storage bin 6, a heating cover 7, a buffer cover 8 and an intracavity purging pipe 14.
The powder storage bin 6 is in an inverted cone shape, the top of the powder storage bin is provided with a powder inlet 1, and the bottom of the powder storage bin is provided with a powder outlet 11. The powder enters the powder storage bin 6 from the upper part and finally comes out from the powder outlet 11 at the lower part.
The heating cover 7 is wrapped and installed on the side surface of the powder storage bin 6, so that the powder storage bin 6 can be continuously heated before or after the powder enters the powder storage bin 6, heat is uniformly conveyed, and the powder is effectively dehumidified to keep a dry state. The drying temperature can be freely adjusted.
The buffering cover 8 is arc-shaped, is movably arranged at the bottom end in the powder storage bin 6 through 4 supporting legs, and the circle center of the buffering cover 8 faces downwards. Therefore, after the powder enters the powder storage bin 6 from the powder inlet 1 at the top, the powder directly falls off the top of the buffering cover 8 and slides off, and the powder can be prevented from being rapidly agglomerated at the powder outlet 11.
The powder inlet 1 is provided with a powder inlet control valve 2, and the powder outlet 11 is provided with a powder outlet control valve 12. The purpose of opening the powder inlet 1 or closing the powder inlet 1 can be realized through the powder inlet control valve 2. The powder outlet 11 can be opened or closed by the powder outlet control valve 12.
The top of the powder storage bin 6 is provided with a cleaning opening 5 with a wide caliber and a cleaning opening cover 4 matched with the cleaning opening 5, and the powder inlet 1 and the powder inlet control valve 2 are arranged on the cleaning opening cover 4. When different grades of powder need to be switched, clearance flap 4 can be opened, and the internal portion of jar is cleaned up through clearance mouth 5, effectively prevents powder cross contamination. The inner cavity is convenient to clean.
The intracavity purging pipe 14 is an antistatic pipe and is arranged in the powder storage bin 6 and communicated with the air inlet 10 at the bottom of the powder storage bin 6. A pressure release valve 3 is also arranged on the cleaning opening cover 4. After the powder enters the powder storage bin 6, dry inert gas is introduced into the gas inlet 10, the powder is blown away through the cavity purging pipe 14, the powder is fully dried and loosened, and redundant inert gas is safely discharged through the gas release valve.
Referring to fig. 1, the powder storage bin further comprises a forking groove 13, a cylindrical outer protective shell 9 is arranged on the outer side of the powder storage bin 6, and the powder storage bin 6 is erected on the forking groove 13 through the bottom of the outer protective shell 9. When the powder turnover device needs to be installed, the powder turnover device is placed at the upper end of the powder spreading device of the printer through the fork conveying groove 13 by using a forklift.
Another embodiment of this application provides a prevent stifled formula from dry 3D printer, includes: the powder turnover device comprises a feeding device, a powder paving device and a powder turnover device, wherein a powder inlet 1 of the powder turnover device is connected with a powder outlet 11 of the feeding device, and a powder outlet 11 of the powder turnover device is connected with a powder inlet 1 of the powder paving device.
The utility model provides an prevent that stifled formula from dry 3D printing powder turnover device can be according to the following operation flow when using:
(1) placing a powder turnover device at the upper end of a powder spreading device of a printer through a fork transport groove 13 by using a forklift, closing a powder inlet control valve 2 and a powder outlet control valve 12, and respectively connecting a powder outlet 11 of a feeding device and a powder inlet 1 of the powder spreading device with a powder inlet 1 and a powder outlet 11;
(2) the heating cover 7 is started to preheat the powder storage bin 6, after the preheating meets the process setting requirement, the powder feeding control valve 2 is opened, and the feeding device quantitatively conveys metal powder to the powder storage bin 6 through the powder feeding port 1;
(3) the powder falls on the movable buffer cover 8, so that the powder can be prevented from rapidly aggregating at the powder outlet 11;
(4) according to the parameters set by the powder drying process, the output temperature of the heating cover 7 is adjusted to ensure that the powder temperature meets the optimal printing process requirement;
(5) after all the quantitative powder enters the powder storage bin 6, closing the powder inlet control valve 2, introducing dry inert gas into the gas inlet 10, blowing the powder through the cavity purging pipe 14 to fully dry and loosen the powder, and safely discharging the redundant inert gas through the gas release valve 3;
(6) and after the set purging process time is reached, stopping air inflow, and completely conveying dry powder meeting the printing process requirements into the powder spreader from the powder outlet 11 by opening and closing the powder outlet control valve 12 according to the requirements of the powder spreader.
The application provides an anti-blocking type is from dry 3D printing powder turnover device not only effectively avoids the powder card to hinder at powder outlet 11, can also realize lasting stable transport dry powder to printing apparatus in, ensures to spread powder and prints work high-efficient operation.
The invention breaks through the difficult problem of unstable printing process caused by powder blockage in the powder feeding link of other upper powder feeding type printing equipment, and also synchronously breaks through the difficult problems of reduced and unstable printed product performance caused by the fact that the powder cannot be effectively dehumidified and dried in the storage and conveying links, and the dried powder can greatly reduce the residual quantity adhered to the inner wall of the tank body, thereby effectively reducing the waste of the powder and synchronously saving the cleaning time.
It is to be noted that, unless otherwise specified, technical or scientific terms used herein shall have the ordinary meaning as understood by those skilled in the art to which this application belongs.
In the description of the present application, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present application and to simplify the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the present application.
Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. In the description of the present application, "a plurality" means two or more unless specifically defined otherwise.
In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral parts; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.
In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through intervening media. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
The above description is only for the preferred embodiment of the present application, but the scope of the present application is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present application should be covered within the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.
Claims (8)
1. The utility model provides an anti-blocking type is from dry 3D printing powder turnover device which characterized in that includes:
the powder storage bin is in an inverted cone shape, the top of the powder storage bin is provided with a powder inlet, and the bottom of the powder storage bin is provided with a powder outlet;
the heating cover is wrapped and installed on the side surface of the powder storage bin; and
the arc-shaped buffering cover is movably mounted at the bottom end in the powder storage bin through 4 supporting legs, and the circle center of the buffering cover faces downwards.
2. The anti-blocking self-drying 3D printing powder turnover device according to claim 1, wherein a powder inlet control valve is installed at the powder inlet, and a powder outlet control valve is installed at the powder outlet.
3. The anti-blocking self-drying 3D printing powder turnover device according to claim 2, wherein a cleaning opening with a wide caliber and a cleaning opening cover matched with the cleaning opening are formed in the top of the powder storage bin, and the powder inlet control valve are mounted on the cleaning opening cover.
4. The anti-blocking self-drying 3D printing powder turnover device according to claim 3, further comprising a cavity purging pipe installed in the powder storage bin, wherein the purging pipe is communicated with an air inlet in the bottom of the powder storage bin.
5. The anti-clogging self-drying 3D printing powder turnover device as claimed in claim 4, wherein a pressure relief valve is further arranged on the cleaning port cover.
6. The anti-blocking self-drying 3D printing powder turnover device according to claim 5, further comprising a forking groove, wherein a cylindrical outer protective shell is arranged outside the powder storage bin, and the powder storage bin is erected on the forking groove through the bottom of the outer protective shell.
7. The anti-blocking self-drying 3D printing powder turnover device according to claim 6, wherein the intra-cavity purging pipe is an anti-static pipe.
8. The utility model provides an prevent stifled formula from dry 3D printer which characterized in that includes: feeding device, shop's powder device and any one of claims 1-7 prevent stifled formula from dry 3D printing powder turnover device, prevent stifled formula from dry 3D printing powder turnover device's powder inlet with feeding device's play powder mouth links to each other, prevent stifled formula from dry 3D printing powder turnover device's play powder mouth with shop's powder inlet links to each other.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022573460.7U CN213437182U (en) | 2020-11-10 | 2020-11-10 | Anti-blocking type self-drying 3D printing powder turnover device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202022573460.7U CN213437182U (en) | 2020-11-10 | 2020-11-10 | Anti-blocking type self-drying 3D printing powder turnover device |
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| CN213437182U true CN213437182U (en) | 2021-06-15 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114082992A (en) * | 2021-11-23 | 2022-02-25 | 苏州三峰激光科技有限公司 | 3D printing powder transfer device, 3D printer and using method |
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- 2020-11-10 CN CN202022573460.7U patent/CN213437182U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114082992A (en) * | 2021-11-23 | 2022-02-25 | 苏州三峰激光科技有限公司 | 3D printing powder transfer device, 3D printer and using method |
| CN114082992B (en) * | 2021-11-23 | 2024-01-05 | 苏州三峰激光科技有限公司 | 3D printing powder transfer device, 3D printer and use method |
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