CN115400954A - Metal powder classification equipment - Google Patents
Metal powder classification equipment Download PDFInfo
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- CN115400954A CN115400954A CN202211051517.4A CN202211051517A CN115400954A CN 115400954 A CN115400954 A CN 115400954A CN 202211051517 A CN202211051517 A CN 202211051517A CN 115400954 A CN115400954 A CN 115400954A
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- 239000000843 powder Substances 0.000 title claims abstract description 80
- 239000002184 metal Substances 0.000 title claims abstract description 37
- 229910052751 metal Inorganic materials 0.000 title claims abstract description 37
- 239000000463 material Substances 0.000 claims abstract description 38
- 238000011084 recovery Methods 0.000 claims description 17
- 239000000428 dust Substances 0.000 claims description 14
- 238000003860 storage Methods 0.000 claims description 9
- 238000003756 stirring Methods 0.000 claims description 6
- 239000002245 particle Substances 0.000 abstract description 23
- 238000012216 screening Methods 0.000 abstract description 17
- 230000000694 effects Effects 0.000 abstract description 6
- 239000004744 fabric Substances 0.000 abstract description 6
- 230000005484 gravity Effects 0.000 abstract description 5
- 239000008187 granular material Substances 0.000 description 6
- 238000007599 discharging Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 238000002156 mixing Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000001681 protective effect Effects 0.000 description 3
- 230000002776 aggregation Effects 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000010146 3D printing Methods 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 238000005054 agglomeration Methods 0.000 description 1
- 238000004220 aggregation Methods 0.000 description 1
- 230000001174 ascending effect Effects 0.000 description 1
- 238000000889 atomisation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 238000009700 powder processing Methods 0.000 description 1
- 239000012255 powdered metal Substances 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B9/00—Combinations of apparatus for screening or sifting or for separating solids from solids using gas currents; General arrangement of plant, e.g. flow sheets
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/28—Moving screens not otherwise provided for, e.g. swinging, reciprocating, rocking, tilting or wobbling screens
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/46—Constructional details of screens in general; Cleaning or heating of screens
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B11/00—Arrangement of accessories in apparatus for separating solids from solids using gas currents
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B11/00—Arrangement of accessories in apparatus for separating solids from solids using gas currents
- B07B11/06—Feeding or discharging arrangements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B7/00—Selective separation of solid materials carried by, or dispersed in, gas currents
- B07B7/06—Selective separation of solid materials carried by, or dispersed in, gas currents by impingement against sieves
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F12/00—Apparatus or devices specially adapted for additive manufacturing; Auxiliary means for additive manufacturing; Combinations of additive manufacturing apparatus or devices with other processing apparatus or devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y40/00—Auxiliary operations or equipment, e.g. for material handling
- B33Y40/10—Pre-treatment
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B2201/00—Details applicable to machines for screening using sieves or gratings
- B07B2201/04—Multiple deck screening devices comprising one or more superimposed screens
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
Abstract
The invention provides metal powder grading equipment which comprises a base and a containing bin transversely arranged on the base, wherein an air inlet and an air outlet are respectively formed in two opposite sides of the containing bin, a feed inlet is formed in the upper side of the containing bin, a plurality of vibrating grading sieves are arranged in the containing bin, a plurality of feed outlets are formed in the lower side of the containing bin, a material guide plate is arranged between each vibrating grading sieve and each feed outlet and comprises a material guide part which is obliquely arranged. Through the storehouse that holds that transversely sets up to drive the powder through the air inlet subassembly and pass the vibration classifying screen and grade, the great powder of particle diameter can drop downwards along the stock guide under the vibration and the action of gravity of vibration classifying screen, and remove to feed opening department, prevent to block up the screen cloth, improve screening efficiency, the wind that gets into along the air intake simultaneously when contacting the stock guide that the slope set up, can produce partial updraft, thereby slow down the falling velocity of powder, improve the screening effect.
Description
Technical Field
The invention relates to the technical field of powder processing, in particular to metal powder grading equipment.
Background
3D printing (3 DP), a technique for constructing objects by layer-by-layer printing using bondable materials such as powdered metals or plastics based on digital model files, is one of the rapid prototyping techniques, also known as additive manufacturing. The powder material generated after atomization processing needs to be screened to select the powder meeting the particle size requirement
In the prior art, a vibrating screen is generally used for classifying and screening powder by utilizing gravity, but in the screening process, part of fine powder clusters formed by aggregation are easy to block the screen, so that the screening efficiency is influenced.
Disclosure of Invention
Aiming at the defects of the prior art, the invention aims to provide metal powder classification equipment, and aims to solve the technical problem that the screening efficiency is low in the prior art.
In order to achieve the purpose, the invention is realized by the following technical scheme: the utility model provides a metal powder classification equipment, includes the base and transversely locates hold the storehouse on the base, metal powder classification equipment still includes the air inlet subassembly, the relative both sides that hold the storehouse be equipped with respectively with air inlet subassembly corresponds air intake and the air outlet that sets up, the upside that holds the storehouse has seted up the feed inlet, the feed inlet is close to the air intake sets up, it is equipped with a plurality of vibration classifying screen in proper order along the air inlet direction in the storehouse to hold, vibration classifying screen's sifter is perpendicular the air inlet direction sets up, metal powder classification equipment still includes the unloading subassembly, the unloading subassembly is including seting up in hold a plurality of feed opening of storehouse downside, the feed opening is close to vibration classifying screen sets up, the unloading subassembly is still including locating vibration classifying screen with stock guide between the feed opening, the stock guide includes the guide portion that the slope set up, the top of stock guide portion is close to vibration classifying screen sets up, the bottom of stock guide portion is close to the feed opening sets up.
Compared with the prior art, the invention has the beneficial effects that: through setting up the base, transversely set up on the base and hold the storehouse, the relative both sides that hold the storehouse are equipped with air intake and air outlet respectively, the feed inlet has been seted up to the upside that holds the storehouse, the feed inlet is close to the air intake setting, it is equipped with a plurality of vibration classifying screen to hold the interior edge air inlet direction of storehouse in proper order, the sifter vertical air inlet direction setting of vibration classifying screen, the downside that holds the storehouse still is equipped with a plurality of feed opening, the feed opening is close to the vibration classifying screen setting, be equipped with the stock guide between vibration classifying screen and the feed opening, the stock guide includes the guide portion that the slope set up, the top of guide portion is close to the vibration classifying screen setting, the bottom of stock guide is close to the feed opening setting, through the storehouse that holds of horizontal setting, and drive the powder through the air inlet subassembly and pass the vibration classifying screen and carry out the classification, the great powder of particle diameter is under the vibration and the action of gravity of vibration classifying screen, can drop down along the stock guide, and remove to feed opening department, prevent to block up the screen cloth, improve screening efficiency, simultaneously, the wind that gets into along the air intake, can produce partial rising, thereby slow down the falling speed of the large granule, can reduce the powder, can drop along with the screening effect of screening, the large granule, the screening effect of screening.
According to one aspect of the above technical scheme, the plurality of vibration grading sieves comprise a first grading sieve and a second grading sieve which are arranged along the air inlet direction
According to an aspect of the above technical solution, the material guiding plate includes a first material guiding plate and a second material guiding plate respectively corresponding to the first classifying screen and the second classifying screen, and a height a of a top of the material guiding portion of the first material guiding plate and a height b of a top of the material guiding portion of the second material guiding plate satisfy: b is greater than a.
According to one aspect of the above technical scheme, the air inlet assembly further comprises a fan arranged on one side of the air inlet, and an air inlet pipeline is connected between the fan and the air inlet.
According to an aspect of above-mentioned technical scheme, the air inlet subassembly still includes the air feed subassembly, the air feed subassembly is including locating the air feed storehouse of fan one side, be equipped with inert protective gas in the air feed storehouse.
According to an aspect of the above technical scheme, metal powder classification equipment still includes the gas recovery subassembly, the gas recovery subassembly is including locating the cyclone on one side of the air outlet, cyclone's air outlet one side is equipped with the outlet duct, the one end of outlet duct is equipped with retrieves the storehouse, it communicates to retrieve the storehouse the confession gas storehouse.
According to one aspect of the above technical scheme, the metal powder classifying equipment further comprises a feeding assembly arranged on one side of the feeding hole, wherein the feeding assembly comprises a storage bin arranged on the feeding hole and a feeding valve arranged in the feeding hole.
According to one aspect of the technical scheme, a blanking pipe is arranged on one side of the blanking port, and a powder storage tank is arranged on one side of the blanking pipe.
According to one aspect of the above technical scheme, the metal powder classifying equipment further comprises a crushing assembly, the crushing assembly comprises a stirring shaft arranged on one side of the feeding hole, and the stirring shaft is provided with a plurality of contact convex blocks.
According to an aspect of above-mentioned technical scheme, metal powder classification equipment still includes the vacuum subassembly, the vacuum subassembly is including locating the vacuum pump of base one side, the vacuum pump intercommunication hold the inside in storehouse, the air intake the air outlet the feed inlet reaches feed opening one side all is equipped with the pressure valve.
Drawings
FIG. 1 is a schematic structural diagram of a metal powder classifying apparatus according to an embodiment of the present invention;
FIG. 2 is a partial sectional view showing the structure of a metal powder classifying apparatus according to an embodiment of the present invention;
FIG. 3 is a schematic view of the air flow direction of the air intake assembly according to an embodiment of the present invention;
description of the main element symbols:
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10 | Accommodating |
20 | |
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21 | |
22 | |
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23 | |
24 | |
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25 | |
26 | |
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| Fan blower | 31 | |
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32 | |
41 | |
| Cyclone |
61 | |
62 | |
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63 | |
71 | |
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72 | |
81 | |
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82 | |
91 | |
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92 |
The following detailed description will further illustrate the invention in conjunction with the above-described figures.
Detailed Description
To facilitate an understanding of the invention, the invention will now be described more fully with reference to the accompanying drawings. Several embodiments of the invention are shown in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
It will be understood that when an element is referred to as being "secured to" 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," "left," "right," and the like as used herein are for illustrative purposes only.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
Referring to fig. 1 to 3, a metal powder classifying device according to an embodiment of the present invention includes a base 10, a receiving bin 20 transversely disposed on the base 10, an air intake assembly, an air inlet 21 and an air outlet 22 disposed on opposite sides of the receiving bin 20 and corresponding to the air intake assembly, a feed inlet 23 disposed on an upper side of the receiving bin 20, the feed inlet 23 disposed adjacent to the air inlet 21, a plurality of vibrating classifying screens 25 sequentially disposed in the receiving bin 20 along an air intake direction, a screen surface of each vibrating classifying screen 25 disposed perpendicular to the air intake direction, a discharging assembly including a plurality of discharge openings 24 disposed on a lower side of the receiving bin 20, the discharge openings 24 disposed adjacent to the vibrating classifying screens 25, a guide plate 26 disposed between the vibrating classifying screens 25 and the discharge openings 24, the guide plate 26 including a guide portion 26a disposed obliquely, a top of the guide portion 26a disposed adjacent to the vibrating classifying screens 25, and a bottom of the guide portion 26a disposed adjacent to the discharge openings 24 a.
Specifically, the metal powder classifying device in this embodiment, by providing the base 10, transversely set up on the base 10 and hold the storehouse 20, the opposite sides that hold the storehouse 20 are equipped with air intake 21 and air outlet 22 respectively, the upside that holds the storehouse 20 has seted up feed inlet 23, feed inlet 23 sets up near air intake 21, hold and be equipped with a plurality of vibration classifying screen 25 in proper order along the air intake direction in the storehouse 20, the vertical air intake direction setting of sifting screen 25, the downside that holds the storehouse 20 still is equipped with a plurality of feed opening 24, feed opening 24 is close to vibration classifying screen 25 and sets up, be equipped with guide plate 26 between vibration classifying screen 25 and feed opening 24, guide plate 26 includes the guide portion 26a that the slope set up, the top of guide portion 26a is close to vibration classifying screen 25 and sets up, the bottom of guide plate 26 is close to feed opening 24 and sets up, hold storehouse 20 through transversely setting up, and drive powder through air intake subassembly and pass vibration classifying screen 25 and carry out classification, powder that the particle size is bigger is under the vibration and gravity action of vibration classifying screen 25, can drop down along guide plate 26, and remove to the feed opening 24, prevent the efficiency that the screen from getting into, thereby the contact and reduce the powder that the screen cloth produced when the screen cloth and can fall, thereby can fall, the falling, the powder meets the requirement of the contact simultaneously, the falling, thereby the falling rate of falling, the screen cloth, the falling rate that the screen cloth that can reduce the falling.
In this embodiment, the plurality of vibrating classifying screens 25 include a first classifying screen and a second classifying screen arranged along the air intake direction. Specifically, above-mentioned a plurality of feed opening 24 includes, correspond first feed opening and the second feed opening that sets up with above-mentioned first classifying screen and second classifying screen, above-mentioned first classifying screen is used for sifting out the powder granule that particle size D < 53um, make it remove to between first classifying screen and the second classifying screen, the powder granule that particle size D > 53um is collected through first feed opening simultaneously, above-mentioned second classifying screen is used for sifting out the powder granule that particle size D < 15um, and discharge the collection through air outlet 22 one side, the particle size satisfies 15 < D < 53 powder granule simultaneously, collect through the second feed opening.
Further, in this embodiment, the material guiding plate 26 includes a first material guiding plate and a second material guiding plate respectively corresponding to the first classifying screen and the second classifying screen, and a height a of a top of the material guiding portion 26a of the first material guiding plate and a height b of a top of the material guiding portion 26a of the second material guiding plate satisfy: b is greater than a. It can be understood that, by setting the second material guiding plate higher than the first material guiding plate, the first material guiding plate can be prevented from shielding the second material guiding plate, an ascending air current is ensured to exist at each material guiding plate 26, and the powder particles are prevented from gradually falling in the moving process, so that the powder particles are not screened. It is understood that in other embodiments of the present invention, the number of the vibrating classifying screens 25 can be arbitrarily set according to the requirement, and the number of the feeding openings 24 and the material guide plates 26 is set corresponding to the number of the vibrating classifying screens 25 to obtain different grades of powder particles. Preferably, the heights of the tops of the plurality of material guide plates 26 sequentially increase along the air intake direction.
In addition, in this embodiment, the air intake assembly further includes a fan 31 disposed at one side of the air inlet 21, and an air intake duct 32 is connected between the fan 31 and the air inlet 21. Further, the air intake assembly further comprises an air supply assembly, the air supply assembly comprises an air supply bin 41 arranged on one side of the fan 31, and inert protective gas is arranged in the air supply bin 41.
In some application scenarios of this embodiment, during the processing, it is necessary to sieve out powder particles with a particle size of D < 15um and powder particles with a particle size satisfying 15um < D < 53 um. In this embodiment, the above metal powder classifying equipment further includes a gas recovery component, the gas recovery component includes a cyclone dust collector 61 arranged on one side of the air outlet 22, an air outlet pipe 62 is arranged on one side of the air outlet 22 of the cyclone dust collector 61, a recovery bin 63 is arranged at one end of the air outlet pipe 62, and the recovery bin 63 is communicated with the air supply bin 41. Specifically, the cyclone dust collector 61 captures powder particles with a particle size range of D > 5um, the powder particles with a particle size range of D < 15um enter the cyclone dust collector 61 from the air outlet 22, dust particles with a particle size of 5-15 um are discharged from a dust outlet at the tail end of the cyclone dust collector 61, an air outlet pipe 62 is arranged at the air outlet 22 of the cyclone dust collector 61, a recovery bin 63 is arranged at one end of the air outlet pipe 62, and the recovery bin 63 is communicated with the air supply bin 41. Specifically, the recovery bin 63 is used for filtering and recovering the gas discharged from the cyclone dust collector 61, thereby reducing the production cost.
In this embodiment, the metal powder classifying device further includes a feeding assembly disposed on one side of the feeding port 23, and the feeding assembly includes a storage bin 81 disposed on the feeding port 23 and a feeding valve disposed in the feeding port 23. It is understood that the falling rate of the powder can be controlled by setting the feeding valve. Further, a discharging pipe 71 is disposed at one side of the discharging opening 24, and a powder storage tank 72 is disposed at one side of the discharging pipe 71.
Preferably, in order to reduce powder agglomeration, in this embodiment, the above metal powder classifying device further includes a crushing assembly, the crushing assembly includes a stirring shaft 91 disposed on one side of the feed port 23, and the stirring shaft 91 is provided with a plurality of contact protrusions 92. In some application scenarios of this embodiment, when metal powder gets into from feed opening 24 and holds storehouse 20, rotate through control (mixing) shaft 91, drive the epaxial contact lug 92 of (mixing) shaft 91 and remove to contact with the powder, can effectively contact the breakage to the powder, prevent that the powder of reunion from breaking away from the removal route of air inlet direction because the quality is great, falling into and holding storehouse 20 bottom, influence screening effect.
Further, in this embodiment, the metal powder classifying device further includes a vacuum assembly, the vacuum assembly includes a vacuum pump (not shown) disposed on one side of the base 10, the vacuum pump is communicated with the inside of the accommodating bin, and pressure valves (not shown) are disposed on one sides of the air inlet 21, the air outlet 22, the feeding port 23, and the discharging port 24.
In some application scenarios of this embodiment, when classifying and screening the metal powder, the pressure valve is closed to make the accommodating bin 20 in a relatively sealed state, the vacuum pump is used to pump out the air in the accommodating bin 20, and the pressure valve is used to observe whether there is air leakage, and then the air intake assembly is used to pass the protective gas through the accommodating bin 20, at this time, the metal powder classifying device is in a closed loop state, and after a moving circulating airflow is generated in the accommodating bin 20, the blanking valve 82 is started to perform blanking, so that the powder moves along with the circulating airflow, and is classified and screened based on the vibrating classifying screen 25, and falls into the powder storage tank 72.
In summary, in the metal powder classifying apparatus according to the above embodiment of the present invention, by disposing the base 10, the accommodating chamber 20 is transversely disposed on the base 10, the air inlet 21 and the air outlet 22 are respectively disposed on two opposite sides of the accommodating chamber 20, the feed inlet 23 is disposed on the upper side of the accommodating chamber 20, the feed inlet 23 is disposed near the air inlet 21, a plurality of vibrating classifying screens 25 are sequentially disposed in the accommodating chamber 20 along the air inlet direction, the screen surfaces of the vibrating classifying screens 25 are disposed perpendicular to the air inlet direction, a plurality of feed openings 24 are further disposed on the lower side of the accommodating chamber 20, the feed openings 24 are disposed near the vibrating classifying screens 25, a guide plate 26 is disposed between the vibrating classifying screens 25 and the feed openings 24, the guide plate 26 includes a guide portion 26a obliquely disposed, the top of the guide portion 26a is disposed near the vibrating classifying screens 25, the bottom of the guide plate 26 is disposed near the feed openings 24, and by disposing the accommodating chamber 20 transversely, the powder with larger particle size can drop downwards along the material guide plate 26 under the vibration and gravity action of the vibration grading sieve 25 and move to the feed opening 24 to prevent the screen mesh from being blocked and improve the screening efficiency, meanwhile, when the wind entering along the wind inlet 21 contacts the material guide plate 26 which is obliquely arranged, partial updraft can be generated, thereby slowing down the falling speed of the powder, simultaneously, the powder which meets the screening requirement can be reduced, the probability of falling to the feed opening 24 along with the large particle powder is improved, the screening effect is improved, the wind outlet 22 of the cyclone dust collector 61 is provided with a gas outlet pipe 62, one end of the gas outlet pipe 62 is provided with a recovery bin 63, the recovery bin 63 is communicated with the gas supply bin 41, the recovery bin 63 is used for filtering and recovering the gas discharged by the cyclone dust collector 61, the production cost is reduced, when the metal powder enters the accommodating bin 20 from the feed opening 24, rotate through control (mixing) shaft 91, drive contact lug 92 on the (mixing) shaft 91 and remove to contact with the powder, can effectively carry out the contact breakage to the powder, prevent the powder of reunion because the quality is great, break away from the removal route of air inlet direction, fall into and hold the storehouse 20 bottom, influence screening effect.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that various changes and modifications can be made by those skilled in the art without departing from the spirit of the invention, and these changes and modifications are all within the scope of the invention. Therefore, the protection scope of the present invention should be subject to the appended claims.
Claims (10)
1. The utility model provides a metal powder classification equipment, its characterized in that includes the base and transversely locates hold the storehouse on the base, metal powder classification equipment still includes the air inlet subassembly, the relative both sides that hold the storehouse be equipped with respectively with air inlet subassembly corresponds air intake and the air outlet that sets up, the feed inlet has been seted up to the upside that holds the storehouse, the feed inlet is close to the air intake setting, it is equipped with a plurality of vibration classifying screen in proper order along the air inlet direction in the storehouse to hold, vibration classifying screen's sifter is perpendicular the air inlet direction sets up, metal powder classification equipment still includes the unloading subassembly, the unloading subassembly is including seting up a plurality of feed opening that holds the storehouse downside, the feed opening is close to vibration classifying screen sets up, the unloading subassembly is still including locating vibration classifying screen with stock guide between the feed opening, the stock guide is including the guide portion that the slope set up, the top of stock guide portion is close to vibration classifying screen sets up, the bottom of stock guide portion is close to the feed opening setting.
2. The metal powder classifying apparatus according to claim 1, wherein the plurality of vibrating classifying screens include a first classifying screen and a second classifying screen arranged along the air intake direction.
3. The metal powder classifying apparatus according to claim 2, wherein the material guide plates include a first material guide plate and a second material guide plate respectively disposed corresponding to the first classifying screen and the second classifying screen, and a height a of a top of the material guide portion of the first material guide plate and a height b of a top of the material guide portion of the second material guide plate satisfy: b is greater than a.
4. The metal powder classifying apparatus according to claim 1, wherein the air intake assembly further includes a fan disposed at one side of the air inlet, and an air intake duct is connected between the fan and the air inlet.
5. The metal powder classifying apparatus according to claim 4, wherein the air intake assembly further includes an air supply assembly, the air supply assembly includes an air supply bin disposed at one side of the fan, and an inert shielding gas is disposed in the air supply bin.
6. The metal powder classifying apparatus according to claim 5, further comprising a gas recovery assembly, wherein the gas recovery assembly includes a cyclone dust collector disposed on one side of the air outlet, an air outlet pipe is disposed on one side of the air outlet of the cyclone dust collector, a recovery bin is disposed at one end of the air outlet pipe, and the recovery bin is communicated with the air supply bin.
7. The metal powder classifying apparatus according to claim 1, further comprising a feeding assembly disposed at one side of the feed opening, wherein the feeding assembly includes a storage bin disposed on the feed opening, and a feeding valve disposed in the feed opening.
8. The metal powder classifying apparatus according to claim 1, wherein a feed pipe is provided at one side of the feed opening, and a powder storage tank is provided at one side of the feed pipe.
9. The metal powder classifying apparatus according to claim 1, further comprising a crushing assembly including a stirring shaft provided at one side of the feed port, the stirring shaft being provided with a plurality of contact protrusions.
10. The metal powder classifying apparatus according to claim 1, further comprising a vacuum assembly including a vacuum pump disposed at one side of the base, wherein the vacuum pump is communicated with the inside of the accommodating chamber, and pressure valves are disposed at the air inlet, the air outlet, the feed inlet and one side of the feed outlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211051517.4A CN115400954A (en) | 2022-08-31 | 2022-08-31 | Metal powder classification equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211051517.4A CN115400954A (en) | 2022-08-31 | 2022-08-31 | Metal powder classification equipment |
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| CN116748140A (en) * | 2023-08-16 | 2023-09-15 | 南京辉颖电子科技有限公司 | Airflow separation device for metal powder processing and early warning method thereof |
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