CN216330142U - Anti-oxidation anti-blocking type 3D printing powder transfer device and 3D printer - Google Patents
Anti-oxidation anti-blocking type 3D printing powder transfer device and 3D printer Download PDFInfo
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- CN216330142U CN216330142U CN202122877958.7U CN202122877958U CN216330142U CN 216330142 U CN216330142 U CN 216330142U CN 202122877958 U CN202122877958 U CN 202122877958U CN 216330142 U CN216330142 U CN 216330142U
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Abstract
The utility model relates to an anti-oxidation anti-blocking type 3D printing powder transfer device and a 3D printer, and the anti-oxidation anti-blocking type 3D printing powder transfer device comprises a powder storage bin, a buffer device and a gas introducing device; the gas introducing device is positioned in the powder storage bin, one end of the gas introducing device is connected with the top of the powder storage bin, and the other end of the gas introducing device extends into the bottom end of the powder storage bin and is positioned above the buffering device; and the gas introducing device is used for introducing inert gas into the powder storage bin. According to the utility model, the gas introducing device is arranged to introduce inert gas to cooperate with the buffer device to sweep the powder so as to dry the powder, so that the powder is prevented from being oxidized due to contact with air, the powder can be prevented from being blocked at the powder outlet, the dry powder can be continuously and stably conveyed to the printing equipment, the efficient operation of powder laying and printing is ensured, and the production efficiency is further improved.
Description
Technical Field
The utility model relates to the technical field of additive manufacturing, in particular to an anti-oxidation anti-blocking type 3D printing powder transfer device and a 3D printer.
Background
At present, in the last powder feeding formula 3D printing system at home and abroad all adopt from gravity blanking to spread among the powder device, for example, chinese patent CN208322118U discloses a 3D printing apparatus is with storing up powder feeding container, and this container is through gravity blanking mode transport powder completely, and after the powder piles up to bottom powder outlet, tiny metal powder is easy oxidation and wet in the turnover in-process, will appear powder outlet and open the difficulty, leads to out the damage of powder control valve card even to hinder. The device has the advantages that the performance and the stability of the product are reduced, the problem that the powder outlet is blocked due to powder agglomeration to cause incapability of continuous feeding is solved, the printing operation is stopped finally, and the process reliability of the printing process is seriously restricted.
Chinese patent CN213437182U discloses a powder container for improving powder fluidity by removing moisture in the device by self-heating, comprising: powder storage bin, heating cover and circular arc buffer cover. This prevent stifled formula 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 the even heat of carrying to effective dehumidification makes the powder keep dry state. However, the device has obvious safety hazards in the use process: the risk of explosion of the powder when heated in the closed container is present, especially when heating active powders such as aluminum powder. In addition, the intracavity that this product set up sweeps the pipe and is located the bottom in storage powder storehouse, and the scope that can blow off is less, appears blowing the condition of motionless powder easily when the powder is more, and the powder blows off the effect relatively poor.
In view of this, it is necessary for technical personnel in the field to develop an anti-oxidation anti-blocking type 3D printing powder transfer device and a 3D printer, which not only effectively prevent the powder from being oxidized due to contact with air, but also avoid the powder from being blocked at the powder outlet, realize continuous and stable conveying of dry powder to printing equipment, and ensure efficient operation of powder spreading and printing work and safety of device operation.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide an anti-oxidation anti-blocking type 3D printing powder transfer device and a 3D printer, which can realize safe operation and realize continuous and stable conveying of dry powder to printing equipment.
In order to achieve the purpose, the utility model adopts the technical scheme that: anti-oxidation anti-blocking type 3D prints powder transfer device, include
The powder storage bin is used for storing 3D printing powder, a powder inlet is formed in the top of the powder storage bin, a powder outlet is formed in the bottom of the powder storage bin, and the 3D printing powder in the powder storage bin flows to the powder outlet from the powder inlet;
the buffering device is positioned at the bottom end inside the powder storage bin;
a gas introduction device; the gas introducing device is positioned in the powder storage bin, one end of the gas introducing device is connected with the top of the powder storage bin, and the other end of the gas introducing device extends into the bottom end of the powder storage bin and is positioned above the buffering device; and the gas introducing device is used for introducing inert gas into the powder storage bin.
Preferably, the width of the powder storage bin is gradually reduced from one end close to the powder inlet along the flowing direction of the powder; more preferably, the powder storage bin is in an inverted cone shape.
Preferably, the gas introducing device comprises an inert gas transmission pipeline arranged inside the powder storage bin, an inert gas inlet arranged on the inert gas transmission pipeline and a plurality of inert gas outlets arranged on the inert gas transmission pipeline.
Preferably, the inert gas transmission pipeline is positioned in the powder storage bin, one end of the inert gas transmission pipeline is connected with the top of the powder storage bin, and the other end of the inert gas transmission pipeline extends into the bottom end of the powder storage bin and is layered above the buffer device.
Preferably, the inert gas inlet is positioned at the joint of the inert gas transmission pipeline and the top of the powder storage bin; the inert gas outlets are distributed on a section of the inert gas transmission pipeline close to the buffer device.
Preferably, at least one row of inert gas outlets is provided, evenly distributed over a section of the pipe close to the buffer means, more preferably at least one row of inert gas outlets is provided, evenly distributed at a side close to the buffer means.
Preferably, the distance between the inert gas outlets of each row is the same; the distance between each inert gas outlet in each row is the same.
Preferably, the inert gas outlets are distributed on the inert gas conveying pipeline, and the length of the inert gas outlets accounts for 1/5-1/2 of the total length of the inert gas conveying pipeline, and more preferably, the length of the inert gas outlets accounts for 1/4-1/3 of the total length of the inert gas conveying pipeline; most preferably, the inert gas outlets are distributed on the inert gas conveying pipeline for a length that the inert gas conveying pipeline is coiled above the buffer device.
Preferably, the gas inlet device further comprises a release valve for discharging the excess inert gas out of the powder storage bin.
Preferably, a powder inlet control valve is installed at the powder inlet, and a powder outlet control valve is installed at the powder outlet; store up powder storehouse top and be equipped with clearance mouth and with the clearance mouth lid that the clearance mouth matches, powder inlet, advance powder control valve, snuffle valve and inert gas air inlet all install on the clearance mouth lid.
Preferably, still include and be located store up the outside protective housing in powder storehouse, outside protective housing be the upper end with store up powder storehouse zonulae occludens's cylindric structure.
Preferably, the bottom of outside protective housing is equipped with the opening that lets go out the powder mouth and pass through, the bottom fixedly connected with fork of outside protective housing transports the groove, fork transports the groove and is used for supplying fork truck fork to get.
Preferably, the fork transport groove comprises two parallel square groove bodies or an annular fork transport groove, one end of the annular fork transport groove is a semicircular groove body, two parallel square groove bodies are arranged at two ends of the semicircular groove body, and the powder outlet is positioned between the two parallel square groove bodies.
Preferably, the buffer device comprises a buffer cover and at least two supporting legs uniformly distributed below the buffer cover, and the buffer cover is of an arc-shaped structure with a downward circle center; a certain gap is formed between the buffering cover and the inner wall of the powder storage bin.
Preferably, the buffering device is movably mounted at the bottom end in the powder storage bin through at least two supporting legs.
The application still claims protection anti-oxidation prevents stifled formula 3D printer, includes: feeding device, shop powder device and in the above anti-oxidation anti-blocking type 3D print powder transfer device, anti-oxidation anti-blocking type 3D print powder transfer device's powder inlet with feeding device's play powder mouth links to each other, anti-oxidation anti-blocking type 3D print powder transfer device's play powder mouth with shop powder device's powder inlet links to each other.
Preferably, the device comprises an inert gas supply device, and the inert gas supply device is connected with the inert gas inlet through a pipeline.
Due to the application of the technical scheme, the utility model has the beneficial effects that:
1. according to the utility model, the gas introducing device is arranged to introduce inert gas to cooperate with the buffer device to sweep the powder so as to dry the powder, so that the powder is prevented from being oxidized due to contact with air, the powder can be prevented from being blocked at the powder outlet, the dry powder can be continuously and stably conveyed to the printing equipment, the efficient operation of powder laying and printing is ensured, and the production efficiency is further improved;
2. the utility model is not provided with a heating device, can ensure the safety and stability in the powder conveying process, has larger range of blowing of the inert gas outlets distributed on the inert gas conveying pipeline, can blow the powder by small force and has better blowing effect;
3. the powder transfer device realizes powder transfer through a simple structure, is convenient to use, improves the operation efficiency and stability, and meets the requirements of production and use.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that some of the drawings in the following description are embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is a front view of one embodiment of the present invention;
FIG. 2 is a top view of one embodiment of the present invention;
fig. 3 is an enlarged schematic view of a portion a in fig. 2.
Wherein, 1, a powder storage bin; 2. a powder inlet; 3. a powder outlet; 4. a buffer device; 5. a gas introduction device; 6. a powder inlet control valve; 7. a powder outlet control valve; 8. a gas release valve; 9. cleaning the opening; 10. cleaning the port cover; 11. an outer protective shell; 12. a forking groove;
41. a buffer cover; 42. supporting legs;
51. an inert gas delivery line; 52. an inert gas inlet; 53. and an inert gas outlet.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present application, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," "fixed," and the like are to be construed broadly and include, for example, fixed connections, detachable connections, or integral parts; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a single embodiment.
Example one
As shown in fig. 1-3, an anti-oxidation anti-blocking 3D printing powder transfer device comprises
The powder storage bin 1 is used for storing 3D printing powder, a powder inlet 2 is formed in the top of the powder storage bin, a powder outlet 3 is formed in the bottom of the powder storage bin, and the 3D printing powder in the powder storage bin flows to the powder outlet from the powder inlet;
the buffering device 4 is positioned at the bottom end inside the powder storage bin;
a gas inlet device 5; the gas introducing device is positioned in the powder storage bin, one end of the gas introducing device is connected with the top of the powder storage bin, and the other end of the gas introducing device extends into the bottom end of the powder storage bin and is positioned above the buffering device; and the gas introducing device is used for introducing inert gas into the powder storage bin.
Further, the width of the powder storage bin is gradually reduced from one end close to the powder inlet along the flowing direction of the powder.
In other preferred embodiments, the powder storage bin is in an inverted cone shape.
Further, the gas introducing device comprises an inert gas transmission pipeline 51 arranged inside the powder storage bin, an inert gas inlet 52 arranged on the inert gas transmission pipeline, and a plurality of inert gas outlets 53 arranged on the inert gas transmission pipeline.
Furthermore, the inert gas transmission pipeline is positioned inside the powder storage bin, one end of the inert gas transmission pipeline is connected with the top of the powder storage bin, and the other end of the inert gas transmission pipeline extends into the bottom end of the powder storage bin and is coiled above the buffer device.
Further, the inert gas inlet is positioned at the joint of the inert gas transmission pipeline and the top of the powder storage bin; the inert gas outlets are distributed on a section of the inert gas transmission pipeline close to the buffer device.
Furthermore, at least one row of inert gas outlets are uniformly distributed on a section of pipeline close to the buffer device.
In other preferred embodiments, at least one row of inert gas outlets is provided, evenly distributed at a side close to the buffer means.
Further, the distance between the inert gas outlets in each row is the same; the distance between each inert gas outlet in each row is the same.
Furthermore, the length of the inert gas outlets distributed on the inert gas transmission pipeline accounts for 1/5-1/2 of the total length of the inert gas transmission pipeline.
In other preferred embodiments, the length of the inert gas conveying pipeline accounts for 1/4-1/3 of the total length of the inert gas conveying pipeline.
In other preferred embodiments, the inert gas outlets are distributed on the inert gas conveying pipeline for a length that the inert gas conveying pipeline is coiled above the buffer device.
Further, the gas inlet device also comprises a gas release valve 8 for discharging the redundant inert gas out of the powder storage bin.
Further, a powder inlet control valve 6 is installed at the powder inlet, and a powder outlet control valve 7 is installed at the powder outlet; store up powder storehouse top and be equipped with clearance mouth 9 and with clearance mouth lid 10 that matches, powder inlet control valve, release valve and inert gas air inlet are all installed on the clearance mouth lid.
Further, still including being located store up the outside protective housing 11 in powder storehouse, outside protective housing be the upper end with store up powder storehouse zonulae occludens's cylindric structure.
Preferably, the bottom of outside protective housing is equipped with the opening that lets go out the powder mouth and pass through, the bottom fixedly connected with of outside protective housing fork fortune groove 12, fork fortune groove is used for supplying fork truck to fork and gets.
Further, the fork conveying groove comprises two square groove bodies which are arranged in parallel; the powder outlet is positioned between two square groove bodies which are arranged in parallel.
In other preferred embodiments, the fork transport groove comprises an annular fork transport groove, one end of the annular fork transport groove is a semicircular groove body, two ends of the semicircular groove body are provided with two square groove bodies which are arranged in parallel, and the powder outlet is located between the two square groove bodies which are arranged in parallel.
Further, the buffer device comprises a buffer cover 41 and four supporting legs 42 uniformly distributed below the buffer cover, wherein the buffer cover is of an arc structure with a downward circle center; a certain gap is formed between the buffering cover and the inner wall of the powder storage bin.
Furthermore, the buffering device is movably arranged at the bottom end in the powder storage bin through four supporting legs.
Example two
The present embodiment is performed on the basis of the first embodiment, and the same parts as the first embodiment are not described in detail.
This embodiment mainly introduces one kind and prevents stifled formula 3D printer of anti-oxidation that embodiment is a looks adaptation, includes: feeding unit, shop powder device and embodiment one anti-oxidation prevent stifled formula 3D print powder transfer device, anti-oxidation prevent stifled formula 3D print powder transfer device's powder inlet with feeding unit's play powder mouth links to each other, anti-oxidation prevent stifled formula 3D print powder transfer device's play powder mouth with shop powder device's powder inlet links to each other.
Preferably, the device comprises an inert gas supply device, and the inert gas supply device is connected with the inert gas inlet through a pipeline.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. Anti-oxidation anti-blocking type 3D printing powder transfer device, which is characterized by comprising
The powder storage bin is used for storing 3D printing powder, a powder inlet is formed in the top of the powder storage bin, a powder outlet is formed in the bottom of the powder storage bin, and the 3D printing powder in the powder storage bin flows to the powder outlet from the powder inlet;
the buffering device is positioned at the bottom end inside the powder storage bin;
a gas introduction device; the gas introducing device is positioned in the powder storage bin, one end of the gas introducing device is connected with the top of the powder storage bin, and the other end of the gas introducing device extends into the bottom end of the powder storage bin and is positioned above the buffering device; and the gas introducing device is used for introducing inert gas into the powder storage bin.
2. The anti-oxidation and anti-blocking type 3D printing powder transferring device according to claim 1, wherein the gas introducing device comprises an inert gas conveying pipeline arranged inside the powder storage bin, an inert gas inlet arranged on the inert gas conveying pipeline, and a plurality of inert gas outlets arranged on the inert gas conveying pipeline.
3. The anti-oxidation and anti-blocking type 3D printing powder transferring device according to claim 2, wherein the inert gas transmission pipeline is located inside the powder storage bin, one end of the inert gas transmission pipeline is connected with the top of the powder storage bin, and the other end of the inert gas transmission pipeline extends into the bottom end of the powder storage bin and is laid above the buffer device.
4. The anti-oxidation and anti-blocking type 3D printing powder transferring device according to claim 3, wherein the inert gas inlet is located at the joint of the inert gas transmission pipeline and the top of the powder storage bin; the inert gas outlets are distributed on a section of the inert gas transmission pipeline close to the buffer device.
5. The anti-oxidation and anti-blocking type 3D printing powder transferring device according to claim 4, wherein the gas introducing device further comprises a gas release valve for discharging redundant inert gas out of the powder storage bin.
6. The anti-oxidation and anti-blocking type 3D printing powder transfer device according to claim 5, wherein a powder inlet control valve is installed at the powder inlet, and a powder outlet control valve is installed at the powder outlet; store up powder storehouse top and be equipped with clearance mouth and with the clearance mouth lid that the clearance mouth matches, powder inlet, advance powder control valve, snuffle valve and inert gas air inlet all install on the clearance mouth lid.
7. The anti-oxidation anti-blocking type 3D printing powder transfer device according to claim 2, further comprising an external protection shell located outside the powder storage bin, wherein the external protection shell is of a cylindrical structure, and the upper end of the external protection shell is tightly connected with the powder storage bin.
8. The anti-oxidation anti-blocking type 3D printing powder transferring device according to claim 7, wherein an opening through which the powder outlet passes is formed in the bottom of the outer protective shell, and a forking and conveying groove is fixedly connected to the bottom of the outer protective shell and used for being forked by a forklift.
9. The utility model provides a stifled formula 3D printer is prevented in anti-oxidation, its characterized in that includes: the anti-oxidation and anti-blocking type 3D printing powder transferring device comprises a feeding device, a powder spreading device and the anti-oxidation and anti-blocking type 3D printing powder transferring device as claimed in any one of claims 1 to 8, wherein a powder inlet of the anti-oxidation and anti-blocking type 3D printing powder transferring device is connected with a powder outlet of the feeding device, and a powder outlet of the anti-oxidation and anti-blocking type 3D printing powder transferring device is connected with a powder inlet of the powder spreading device.
10. The anti-oxidation and anti-blocking 3D printer according to claim 9, comprising an inert gas supply device, wherein the inert gas supply device is connected with an inert gas inlet of the anti-oxidation and anti-blocking 3D printing powder transfer device through a pipeline.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202122877958.7U CN216330142U (en) | 2021-11-23 | 2021-11-23 | Anti-oxidation anti-blocking type 3D printing powder transfer device and 3D printer |
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| CN202122877958.7U CN216330142U (en) | 2021-11-23 | 2021-11-23 | Anti-oxidation anti-blocking type 3D printing powder transfer device and 3D printer |
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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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2021
- 2021-11-23 CN CN202122877958.7U patent/CN216330142U/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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