CN209257478U - A kind of scraper device - Google Patents
A kind of scraper device Download PDFInfo
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- CN209257478U CN209257478U CN201822233609.XU CN201822233609U CN209257478U CN 209257478 U CN209257478 U CN 209257478U CN 201822233609 U CN201822233609 U CN 201822233609U CN 209257478 U CN209257478 U CN 209257478U
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- ventilation duct
- scraper
- air outlet
- air inlet
- air
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Abstract
The utility model discloses a kind of scraper devices, including, doctor blade holder, scraper, the first ventilation duct and the second ventilation duct, scraper is arranged on doctor blade holder, first ventilation duct is set on doctor blade holder, first ventilation duct is hollow structure, is provided with the first air inlet being connected to hollow cavity and at least one first air outlet on the first ventilation duct；Second ventilation duct is set to the side of scraper direction of advance；Several second air outlets for being provided at least one second air inlet on second ventilation duct and being connected to at least one second air inlet, at least one first air outlet are connected to at least one second air inlet, for removing the slag on substrate before powdering.The utility model scraper is arranged on doctor blade holder, and after the completion of once-forming, scraper can carry out powdering process, so that print job effectively carries out by the drive of doctor blade holder；Before normal powdering, gas can be flowed out by several second air outlets, and the slag on substrate is removed, and improve the quality of production workpiece.
Description
Technical field
The utility model relates to three-dimensional printing technology fields, and in particular to a kind of scraper device.
Background technique
Rapid laser-shaping technique is a kind of effective means for manufacturing complex parts.Selective laser smelting technology combines three
Tie up modeling, computer module management, laser lamp field the relevant technologies, three-dimensional entity model is established, to 3D solid using CAD
Model carry out slicing treatment, by hierarchy slicing outline data import computer, by laser to the layer-by-layer Melting And Solidification of selection region,
Layer upon layer final molding goes out entity component；Laser only melts the powder in selection region, and still, when laser cladding powder can produce
Raw certain flue dust, and since laser temperature is excessively high causes the powder on unshaped to workpiece to form fusion slagging, and flue dust and
Slag is understood some and is remained on forming storehouse (i.e. on substrate), therefore when scraper is during powdering, and scraper cannot will be at
Flue dust and slag are all blown off on shape storehouse, have part flue dust and slag residual, to influence the precision of scraper powdering, and because swashing
Light temperature is excessively high, may will be close in the slag cladding to workpiece of selection region, and finally influences the quality of workpiece manufacture.
But one side of forming board is arranged in the existing device that can be cleared up, corresponding cleaning mechanism mostly, can not
It is cleared up in real time and for print position according to actual condition, therefore, the quality of workpieces processing can not be improved.
Utility model content
In view of the above problems, the object of the present invention is to provide a kind of scraper devices.
To achieve the goals above, the utility model takes following technical scheme: scraper device include: doctor blade holder, scraper,
First ventilation duct and the second ventilation duct, scraper are arranged on doctor blade holder, and the first ventilation duct is set on doctor blade holder, the first ventilation duct
For hollow structure, the first air inlet being connected to hollow cavity and at least one first air outlet are provided on the first ventilation duct；
Second ventilation duct is set to the side of scraper direction of advance；At least one second air inlet is provided on second ventilation duct
Mouthful and several second air outlets for be connected to at least one second air inlet, at least one first air outlet at least one second
Air inlet connection, for removing the slag on substrate before powdering.
By adopting the above technical scheme, scraper is arranged on doctor blade holder, and general scraper is arranged by removably in scraper
On frame, scraper can carry out powdering process, so that print job effectively carries out by the drive of doctor blade holder；First air inlet, first
Ventilation duct, the first air outlet, the second air inlet, the second ventilation duct and the second air outlet set gradually and are connected to, and form gas
Circulation passage；Specifically, the first ventilation duct is set on doctor blade holder, the second ventilation duct is set to the side of scraper direction of advance,
First ventilation duct rectifies the air-flow entered by the first air inlet, after being flowed out respectively by least one first air outlet, into
Enter to the second air inlet, rectified again via the second ventilation duct, after making even gas distribution, is flowed out by several second air outlets, with logical
The drive for crossing doctor blade holder, before powdering remove substrate on slag, aforesaid operations are simple, easy, and device can need into
When row cleaning, accomplish real-time and abundant cleaning, improves the quality of production workpiece.
Further, the air-out direction of the second air outlet is the side for being directed away from scraper.
By adopting the above technical scheme, the air-out direction of the second air outlet is the side for being directed away from scraper, on the one hand can
In scraper advance powdering, the slag before scraper is cleaned up, it is avoided to be adhered on scraper, when carrying out powdering next time,
Slag falls to position to be printed from scraper, to influence the precision of scraper powdering, and finally influences the quality of manufacture workpiece；Separately
On the one hand the air-out direction for avoiding the second air outlet is towards the side of scraper, so that the powder that should carry out normal powdering be blown
It walks, influences printing progress.
Further, the angle between the second air outlet and the affiliated plane of scraper is 45 degree to 75 degree.
By adopting the above technical scheme, the angle between the second air outlet and the affiliated plane of scraper is 45 degree to 75 degree, is avoided
When initial stage molten slag removal, because the angle being arranged therebetween is excessive, cause the second air outlet that cannot will be close to scraper partial region
Interior slag is cleaned out, while also can be avoided, and because of the angle too small being arranged therebetween, leads to that normal powdering should be carried out
Powder blow away, influence printing progress, angle between the two is 45 degree to 75 degree, is arranged in this angular range, can be complete
Slag on substrate is cleaned out, guarantees the quality of printing workpiece.
Further, the second ventilation duct is connect by connecting plate with doctor blade holder.
By adopting the above technical scheme, the second ventilation duct is fixedly connected by connecting plate with doctor blade holder, on the one hand can guarantee clear
During reason, the angle between the second air outlet and the affiliated plane of scraper is fixed, and guarantees that cleaning work effectively carries out, on the other hand
It can be the second ventilation duct advance cleaning work, transmit power, guarantee that the second ventilation duct can be clear by the slag in the entire plane of substrate
Reason is clean.
Further, the size of the first air inlet is greater than the size of the first air outlet.
By adopting the above technical scheme, guarantee there is enough gas to be entered in gas passage by the first air inlet, work as gas
When having enough gas flows in channel, it is insufficient to can avoid gas flow, cause the second air outlet of part do not have gas flow out or
Gas is less, to influence cleaning effect.
Further, the size of the second air inlet is greater than the size of the second air outlet.
By adopting the above technical scheme, on the one hand guarantee there is enough gas to enter the second ventilation duct by the second air inlet
It is interior, when having enough gas flows in the second ventilation duct, it can avoid gas flow deficiency, the second air outlet of part caused not have
Gas outflow or gas are less, so that cleaning effect is influenced, on the other hand when enough air-flows are entered the wind by larger-size second
Mouth enters the second ventilation duct, and the flow velocity of gas but finally can be improved by lesser second air outlet of size, in this way, it is possible to
Slag on substrate is removed clean.
Further, the first air outlet is corresponded with the quantity of the second air inlet and position.
By adopting the above technical scheme, the quantity of the two and position correspond, and can guarantee to be flowed out by the first air outlet
Gas all flow into the second air inlet, on the one hand can be avoided gas leakage, influence print job, on the other hand guarantee there is foot
Enough gas flows enter the second ventilation duct, improve cleaning effect.
Further, every one first air outlet passes through a pipeline and is connected to every one second air inlet.
By adopting the above technical scheme, the first air outlet is connected to by pipeline as connection medium with corresponding second air inlet,
The gas flowed out by the first air outlet flows into the two the second air inlets by the transmission of pipeline, on the one hand avoids the first air outlet
It is different with the second air inlet size, cause gas to leak；On the other hand because existing between the second air outlet and the affiliated plane of scraper
Certain angle, pipeline are the setting of angle, carry out transition and reserved space.
In conclusion scraper is arranged on doctor blade holder, after the completion of once-forming, scraper can by the drive of doctor blade holder, into
Row powdering process, so that print job effectively carries out；First air inlet, the first ventilation duct, the first air outlet, the second air inlet,
Second ventilation duct and the second air outlet set gradually and are connected to, and form the circulation passage of gas；Specifically, the first ventilation duct is arranged
In on doctor blade holder, the second ventilation duct be set to the side of scraper direction of advance, the first ventilation duct will be entered by the first air inlet
Air-flow is rectified, and after being flowed out respectively by several first air outlets, enters the second air inlet, whole again via the second ventilation duct
Stream after making even gas distribution, is flowed out by the second air outlet, to put down by the drive of doctor blade holder, and belonging to the second air outlet and scraper
There are 45 degree to 75 degree of angles between face, and the slag on substrate can be removed before powdering, and aforesaid operations are simple, easy, and fill
Real-time and abundant cleaning can be accomplished when being cleared up by setting, and improve the quality of production workpiece.
Detailed description of the invention
Fig. 1 is the overall structure diagram of one embodiment of the utility model；
Fig. 2 is the overall structure schematic top plan view of one embodiment of the utility model；
Fig. 3 is the overall structure elevational schematic view of one embodiment of the utility model；
Fig. 4 is the overall structure side cross sectional views of one embodiment of the utility model；
Fig. 5 is the overall structure schematic rear view of one embodiment of the utility model.
Wherein, 1 is scraper, and 2 be doctor blade holder, and 3 be the first ventilation duct, and 4 be the first air inlet, and 5 be the first air outlet, and 6 are
Second ventilation duct, 7 be the second air inlet, and 8 be the second air outlet, and 9 be connecting plate, and 10 be pipeline.
Specific embodiment
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing and implementation
Example, the present invention will be further described in detail.It should be appreciated that specific embodiment described herein is only used to explain
The utility model is not used to limit the utility model.
Slag at position to be printed cannot be cleared up in real time and sufficiently in order to solve existing cleaning plant, lead to workpieces processing
The technical problems such as poor quality, the utility model provide scraper device.
For convenience of the understanding to the utility model, here, the part print procedure of summary selective laser smelting technology, scraper
1 first the flat-pushing powder to one thickness of formation on substrate of mixed-powder, and laser melts selection region solidifying according to presupposed solution
Gu after current layer prints, formation cylinder declines the distance of a slicing layer thickness, scraper 1 retracts original position, and powder feeding cylinder rises one
The distance of a slicing layer thickness, scraper 1 send the powder of a slicing layer thickness on manufactured current layer upper berth again, according to upper
Step is stated, laser goes out entity component to the layer-by-layer Melting And Solidification of selection region, layer upon layer final molding；In this process, swash
Certain flue dust can be generated when light cladding powder, and since laser temperature is excessively high, the powder on unshaped to workpiece is caused to be formed
Slagging is fused, and flue dust and slagging are understood some and are remained on forming storehouse, therefore work as scraper 1 during powdering, residual
Flue dust and slagging will affect the precision of 1 powdering of scraper, and because laser temperature is excessively high, the slag that may will be close to selection region is molten
It is layed on workpiece, and finally influences the quality of workpiece manufacture.
As shown in figures 1 and 3, to solve the above-mentioned problems, one embodiment of the utility model provides scraper device,
Including doctor blade holder 2, scraper 1, the first ventilation duct 3 and the second ventilation duct 6, scraper 1 is arranged on doctor blade holder 2, and the first ventilation duct 3 is set
Be placed on doctor blade holder 2, the first ventilation duct 3 is hollow structure, be provided on the first ventilation duct 3 be connected to hollow cavity first into
Air port 4 and at least one first air outlet 5；
Second ventilation duct 6 is set to the side of 1 direction of advance of scraper；Be provided on second ventilation duct 6 at least one second
Air inlet 7 and several second air outlets 8 being connected to at least one second air inlet 7, at least one first air outlet 5 at least
One the second air inlet 7 connection, for removing the slag on substrate before powdering.
By adopting the above technical scheme, scraper is arranged on doctor blade holder, and general scraper is arranged by removably in scraper
On frame, scraper can carry out powdering process, so that print job effectively carries out by the drive of doctor blade holder；First air inlet, first
Ventilation duct, the first air outlet, the second air inlet, the second ventilation duct and the second air outlet set gradually and are connected to, and form gas
Circulation passage；Specifically, the first ventilation duct is set on doctor blade holder, the second ventilation duct is set to the side of scraper direction of advance,
First ventilation duct rectifies the air-flow entered by the first air inlet, after being flowed out respectively by least one first air outlet, into
Enter to the second air inlet, rectified again via the second ventilation duct, after making even gas distribution, is flowed out by several second air outlets, with logical
The drive for crossing doctor blade holder, before powdering remove substrate on slag, aforesaid operations are simple, easy, and device can need into
When row cleaning, accomplish real-time and abundant cleaning, improves the quality of production workpiece.
On the basis of the above embodiments, further, as shown in Figure 1, the first ventilation duct 3 is the hollow cavity of semicolumn
Structure, wherein plane one end of the first ventilation duct 3 is fixedly connected with 2 top of doctor blade holder, with fix the first ventilation duct 3 relative to
A through-hole is arranged in the position of doctor blade holder 2, the side of the first ventilation duct 3, and the first air inlet 4 is connected by through-hole and the first ventilation duct 3
It is logical, in opposite 3 other side of the first ventilation duct of the first air inlet 4, setting and the identical through-hole of 5 numbers of the first air outlet, first
Air outlet 5 is connected to by through-hole with the first ventilation duct 3, in this way, gas can be entered by the first air inlet 4, it is whole through the first ventilation duct 3
It after stream, is flowed out by the first air outlet 5, completes the work of portion gas conveying, it is contemplated that the first air inlet 4 and first
Air outlet 5 is not only oppositely arranged a kind of mode, may also set up in the same side, or is arranged in sides adjacent, as long as can protect
Card cleaning work effectively carries out, and 5 particular number of the first air inlet 4 and the first air outlet is arranged in combination with actual condition,
This is not construed as limiting.
On the basis of the above embodiments, further, as shown in figure 4, the second ventilation duct 6 is cylindrical hollow cavity
Structure and the first ventilation duct 3 are identical as the connection type of the first air inlet 4, the first air outlet 5, and difference is, all to be gone out by second
The gas that air port 8 is flowed out can cover the lateral distance of substrate, that is, guarantee that the second air outlet 8 can be whole by the slag on substrate
It removes, avoids causing to remove not exclusively, influencing elimination effect because coverage area is too small.
On the basis of the above embodiments, further, it is the leakproofness for guaranteeing device, gas is avoided to be let out by gas passage
Leakage, the first air inlet 4, the first ventilation duct 3, the first air outlet 5, the second air inlet 7, the second ventilation duct 6 and the second air outlet 8,
It is integrally formed between more persons.
On the basis of the above embodiments, further, as shown in Figure 1, for the slag on cleaning substrate, the second air outlet
8 air-out direction is the side for being directed away from scraper 1, i.e., after gas is flowed out by the second air outlet 8, can by slag, according to by
Direction gradually far from scraper 1 is blowed to the appropriate location for not interfering printing.
By adopting the above technical scheme, the air-out direction of the second air outlet be directed away from the side of scraper on the one hand can be
When scraper advance powdering, the slag before scraper is cleaned up, it is avoided to be adhered on scraper, when carrying out powdering next time, by
Scraper is fallen in position to be printed, to influence the precision of scraper powdering, and finally influences the quality of manufacture workpiece；On the other hand
The air-out direction for avoiding the second air outlet is towards the side of scraper, to the powder that should carry out normal powdering be blown away, shadow
Ring printing progress.
It on the basis of the above embodiments, further, is preferably clear under the premise of guaranteeing that print job effectively carries out
The slag on substrate is managed, the angle between plane belonging to the second air outlet 8 and scraper 1 is 45 degree to 75 degree, and specific degree can
It is arranged according to actual condition, is not specifically limited herein.
By adopting the above technical scheme, the angle between the second air outlet and the affiliated plane of scraper is 45 degree to 75 degree, is avoided
When initial stage molten slag removal, because the angle being arranged therebetween is excessive, cause the second air outlet that cannot will be close to scraper partial region
Interior slag is cleaned out, while also can be avoided, and because of the angle too small being arranged therebetween, leads to that normal powdering should be carried out
Powder blow away, influence printing progress, angle between the two is 45 degree to 75 degree, is arranged in this angular range, can be complete
Slag on substrate is cleaned out, guarantees the quality of printing workpiece.
On the basis of the above embodiments, further, as shown in Figure 1, to make an overall screening the slag on substrate, second is logical
Air hose 6 is connect by connecting plate 9 with doctor blade holder 2, i.e., 9 one end of connecting plate is arranged in 6 one end of the second ventilation duct, 9 one end of connecting plate
The appropriate location of doctor blade holder 2 is set, in this way, the second ventilation duct 6 can be with 2 activity of doctor blade holder.
By adopting the above technical scheme, the second ventilation duct is fixedly connected by connecting plate with doctor blade holder, on the one hand can guarantee clear
During reason, the angle between the second air outlet and the affiliated plane of scraper is fixed, and guarantees that cleaning work effectively carries out, on the other hand
It can be the second ventilation duct advance cleaning work, transmit power, guarantee that the second ventilation duct can be clear by the slag in the entire plane of substrate
Reason is clean.
On the basis of the above embodiments, further, connecting plate 9 can pass through with the second ventilation duct 6 and doctor blade holder 2 respectively
Existing any suitable methods such as welding are fixedly connected, with the corner dimension fixed between plane belonging to the second air outlet 8 and scraper 1
It is constant, in addition, connecting plate 9 can be also flexibly connected with doctor blade holder 2, to facilitate according to actual condition, adjusts the second air outlet 8 and scrape
Corner dimension between plane belonging to knife 1 fixes connecting plate 9 and the relative position of doctor blade holder 2 to after proper angle, improves
Cleaning effect.
On the basis of the above embodiments, further, as shown in figure 4, to guarantee the gas flow for having sufficient, first into
The size in air port 4 is greater than the size of the first air outlet 5.
By adopting the above technical scheme, guarantee there is enough gas to be entered in gas passage by the first air inlet, work as gas
When having enough gas flows in channel, it is insufficient to can avoid gas flow, cause the second air outlet of part do not have gas flow out or
Gas is less, to influence cleaning effect.
On the basis of the above embodiments, further, as shown in figure 4, the size of the second air inlet 7 is greater than the second outlet air
The size of mouth 8, to improve gas flow rate.
By adopting the above technical scheme, on the one hand guarantee there is enough gas to enter the second ventilation duct by the second air inlet
It is interior, when having enough gas flows in the second ventilation duct, it can avoid gas flow deficiency, the second air outlet of part caused not have
Gas outflow or gas are less, so that cleaning effect is influenced, on the other hand when enough air-flows are entered the wind by larger-size second
Mouth enters the second ventilation duct, and the flow velocity of gas but finally can be improved by lesser second air outlet of size, in this way, it is possible to
Slag on substrate is removed clean.
On the basis of the above embodiments, further, to further increase gas flow rate, can the second air inlet 7 with
The spherical and hollow flow-guiding structure that specification is greater than the second air inlet 7 is set between second air outlet 8, and gas is by the second air inlet
7 enter in spherical and hollow flow-guiding structure, smaller via size after gas is full of cavity because the cavity of structure is larger
The second air outlet 8 outflow, can be higher than the speed of inflow, to improve cleaning effect.
On the basis of the above embodiments, further, the first air outlet 5 and the quantity of the second air inlet 7 and position are equal
It corresponds, to avoid gas leakage, influences print job and effectively carry out.
By adopting the above technical scheme, the quantity of the two and position correspond, and can guarantee to be flowed out by the first air outlet
Gas all flow into the second air inlet, on the one hand can be avoided gas leakage, influence print job, on the other hand guarantee there is foot
Enough gas flows enter the second ventilation duct, improve cleaning effect.
On the basis of the above embodiments, further, as shown in Fig. 2, every one first air outlet 5 passes through a pipeline 10
It is connected to every one second air inlet 7.
By adopting the above technical scheme, the first air outlet is connected to by pipeline as connection medium with corresponding second air inlet,
The gas flowed out by the first air outlet flows into the two the second air inlets by the transmission of pipeline, on the one hand avoids the first air outlet
It is different with the second air inlet size, cause gas to leak；On the other hand because existing between the second air outlet 8 and the affiliated plane of scraper
Certain angle, pipeline are the setting of angle, carry out transition and reserved space.
It on the basis of the above embodiments, further, is the leakproofness for guaranteeing device, 10 both ends of pipeline go out with first
It when air port 5 is connected to the second air inlet 7, is fastened on the outside by the existing component such as clip, alternatively, the first air outlet 5, pipe
Road 10 and the second air inlet 7, are integrally formed.
When in use, the protective gas such as argon gas may be selected in the gas for molten slag removal to above-described embodiment, are clearing up in this way
When slag, it can be ensured that gas will not influence workpiece quality under high temperature environment with powdered reaction, or, causing more major break down；Specifically
Ground after printing to height as 10 millimeters, starts molten slag removal as needed in printing, gas by the first air inlet 4 into
Enter, wherein the voltage value of the flow velocity of gas can be 2.0 volts to 4.5 volts, it is ensured that under this flow velocity, gas can be cleared up sufficiently
Slag avoids it from being formed on workpiece, and will not because caused by flow velocity is too fast gas waste, and may will to be used for place mat preset
Powder is blown away, to influence normal print job；Certainly, the gaseous species of molten slag removal, flow velocity, and begin a clean up work
When printing height, above-mentioned regulation is not limited to, as long as can satisfy job requirement.
In conclusion scraper is arranged on doctor blade holder, after the completion of once-forming, scraper can by the drive of doctor blade holder, into
Row powdering process, so that print job effectively carries out；First air inlet, the first ventilation duct, the first air outlet, the second air inlet,
Second ventilation duct and the second air outlet set gradually and are connected to, and form the circulation passage of gas；Specifically, the first ventilation duct is arranged
In on doctor blade holder, the second ventilation duct be set to the side of scraper direction of advance, the first ventilation duct will be entered by the first air inlet
Air-flow is rectified, and after being flowed out respectively by several first air outlets, enters the second air inlet, whole again via the second ventilation duct
Stream after making even gas distribution, is flowed out by the second air outlet, to put down by the drive of doctor blade holder, and belonging to the second air outlet and scraper
There are 45 degree to 75 degree of angles between face, and the slag on substrate can be removed before powdering, and aforesaid operations are simple, easy, and fill
Real-time and abundant cleaning can be accomplished when being cleared up by setting, and improve the quality of production workpiece.
Embodiment described above is only that preferred embodiments of the present invention are described, not practical to this
Novel conception and scope is defined.Without departing from the design concept of the present utility model, ordinary people in the field couple
The all variations and modifications that the technical solution of the utility model is made, should fall within the protection scope of the present utility model, this reality
With novel claimed technology contents, it is all described in the claims.
Claims (8)
1. a kind of scraper device, including doctor blade holder and the scraper being arranged on the doctor blade holder, which is characterized in that further include:
First ventilation duct, first ventilation duct are set on the doctor blade holder, and first ventilation duct is hollow structure, described
The first air inlet being connected to hollow cavity and at least one first air outlet are provided on first ventilation duct；
Second ventilation duct, second ventilation duct are set to the side of the scraper direction of advance；It is set on second ventilation duct
Several second air outlets for being equipped at least one second air inlet and being connected to the second air inlet described at least one, at least one
First air outlet is connected to the second air inlet described at least one, for removing the slag on substrate before powdering.
2. scraper device according to claim 1, which is characterized in that the air-out direction of second air outlet is towards remote
Side from the scraper.
3. scraper device according to claim 2, which is characterized in that second air outlet and the affiliated plane of the scraper
Between angle be 45 degree to 75 degree.
4. scraper device according to claim 1, which is characterized in that second ventilation duct is scraped by connecting plate with described
Knife rest connection.
5. scraper device according to claim 1, which is characterized in that the size of first air inlet is greater than described first
The size of air outlet.
6. scraper device according to claim 1, which is characterized in that the size of second air inlet is greater than described second
The size of air outlet.
7. scraper device according to any one of claims 1 to 6, which is characterized in that first air outlet and described second
The quantity of air inlet and position correspond.
8. scraper device according to claim 7, which is characterized in that each first air outlet pass through a pipeline with
Each second air inlet connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822233609.XU CN209257478U (en) | 2018-12-28 | 2018-12-28 | A kind of scraper device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822233609.XU CN209257478U (en) | 2018-12-28 | 2018-12-28 | A kind of scraper device |
Publications (1)
| Publication Number | Publication Date |
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| CN209257478U true CN209257478U (en) | 2019-08-16 |
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ID=67583641
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| CN201822233609.XU Active CN209257478U (en) | 2018-12-28 | 2018-12-28 | A kind of scraper device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114734064A (en) * | 2022-06-10 | 2022-07-12 | 航宇新材料智能制造研究院(山西)有限公司 | Vibration powder spreading device of selective melting forming equipment |
-
2018
- 2018-12-28 CN CN201822233609.XU patent/CN209257478U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114734064A (en) * | 2022-06-10 | 2022-07-12 | 航宇新材料智能制造研究院(山西)有限公司 | Vibration powder spreading device of selective melting forming equipment |
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