CN112495775A

CN112495775A - Vibrating powder screening device

Info

Publication number: CN112495775A
Application number: CN202011334454.4A
Authority: CN
Inventors: 沈李耀威; 朱利安·施密特; 李潇骁
Original assignee: Yin Shilei
Current assignee: Yunyao Shenwei (Jiangsu) Technology Co.,Ltd.
Priority date: 2020-11-24
Filing date: 2020-11-24
Publication date: 2021-03-16
Anticipated expiration: 2040-11-24
Also published as: CN112495775B

Abstract

The invention provides a vibrating powder sieving device which comprises a powder sieving box, a powder sieving box cover, a positioning mechanism and a rotating mechanism, wherein the powder sieving box cover is covered on the top of the powder sieving box, and the powder sieving box is rotationally connected with the powder sieving box cover and surrounds to form a powder sieving chamber; the top of the sieve box cover is provided with a feed inlet communicated with the sieve powder chamber, and the bottom of the sieve powder box is provided with a discharge outlet communicated with the sieve powder chamber; the rotating mechanism and the positioning mechanism are respectively externally connected to two opposite sides of the powder sieving box and are rotationally connected with the powder sieving box, the rotating mechanism drives the powder sieving box to overturn up and down, and the rotating angle and the inclined position of the powder sieving box are limited through the positioning mechanism. The powder screening device can integrally rotate, so that the powder cylinder bodies can be installed and recovered from the bottom of the device, and time and labor are saved; the device adopts the vibration conduction cooperation of non-fastening formula, promotes to shine a set cleanness and change efficiency by a wide margin, reduces use cost simultaneously.

Description

Vibrating powder screening device

Technical Field

The invention relates to the technical field of powder screening equipment, in particular to a vibrating powder screening device.

Background

Compared with non-metallic materials, metals are more widely used in industry due to their good mechanical properties and special physicochemical properties. With the development of science and technology, the demand for manufacturing various industrial and civil products by using metal powder as a raw material is increasing, such as powder metallurgy industry and thermal spraying industry. In recent years, high-end manufacturing techniques, which are processed and produced by additive manufacturing techniques, are rapidly developed using metal powder, so that the market demand for high-end metal powder is continuously increased.

The additive manufacturing technology breaks through the limitation of the traditional processing in the processes of product design, production and manufacturing, later-stage assembly and the like, and can improve the added value of the printed product from all aspects of integration, light weight, functionalization and the like.

As a raw material for metal additive manufacturing, metal powder has extremely strict requirements and standards for the specifications of the powder itself, such as particle size distribution, sphericity, fluidity, chemical composition, and dryness. Before the printing process, the range of the particle size of the metal powder used in the batch needs to be determined from the consideration factors of the printing size, printing accuracy and molding efficiency of the target workpiece. Meanwhile, in the powder bed additive manufacturing process, when the laser beam acts on the powder bed, anisotropic metal splashes, oxides and residues are generated, and when the residual metal powder is recycled for the next additive manufacturing process, the non-original large-particle metal wastes seriously affect the molding quality and the performance of the processed material. Therefore, it is important to sieve and filter the powder material to select a powder of a desired size before and after additive manufacturing.

At present, the powder screening device suitable for metal powder on the market mainly uses vibration as an energy source, and the energy source and the screening disc are fastened through mechanical design, so that the vibration is conducted onto the screening disc, and the powder screening is realized. The main vibration modes are low-frequency mechanical vibration and high-frequency ultrasonic vibration. Powder sieving requires the selection of different metal powder materials or different powder particle sizes, taking into account the differences in the specific forming process and the processing equipment used. To avoid cross-powder contamination, different powder materials require the use of different sifter trays. The same powder material, different particle sizes require different particle size sieve trays. Therefore, the powder sieving device suitable for the metal powder needs to replace the powder sieving disc in real time. But the connection mode of the fastened energy source and the sieve tray is not easy to replace the sieve tray in time, so that the powder sieving efficiency is reduced, and particularly under the research and development or production conditions of multiple types of metal powder and large powder grading sieve amount.

Meanwhile, the existing powder sieving device supplies powder from the upper part of the equipment, and the powder is sieved through the middle sieve tray and finally collected into the powder storage tank body at the lower part. This kind of mode is handling under the too big condition of powder screening volume, the transport and the installation of the powder jar body of being not convenient for and storing up the powder jar body, has the heavy object simultaneously and emptys the hidden danger that reveals with the powder in installation and dismantlement process.

Therefore, the powder screening equipment which is easy to transfer, install and replace the powder tank and the screen disc in the metal powder screening process has practical application significance. Meanwhile, the powder screening equipment can also be popularized and applied to screening of non-metal powder.

Disclosure of Invention

The invention mainly aims to provide a vibrating powder sieving device which has the characteristic of integral rotation, realizes the installation and recovery of powder cylinder bodies from the bottom of the device, saves time and labor, avoids the accidental risks of powder tank dumping and powder overflow, and solves the technical problem that the powder sieving device in the prior art is inconvenient for installing and replacing the powder tank.

In order to achieve the above object, the present invention provides a vibrating powder sieving device.

This shale shaker powder device includes sieve powder case, sieve case lid, positioning mechanism and rotary mechanism, wherein:

the sieve box cover covers the top of the sieve powder box, and the sieve powder box is rotatably connected with the sieve box cover and surrounds the sieve powder box to form a sieve powder chamber;

the top of the powder sieving box cover is provided with a feed inlet communicated with the powder sieving chamber, and the bottom of the powder sieving box is provided with a discharge outlet communicated with the powder sieving chamber;

the rotating mechanism and the positioning mechanism are respectively externally connected to two opposite sides of the powder sieving box and are rotationally connected with the powder sieving box; the rotating mechanism drives the powder sieving box to overturn up and down, and the rotating angle and the inclined position of the powder sieving box are limited through the positioning mechanism.

Further, still include sieve dish and vibration conduction system, the sieve dish is arranged replaceably sieve powder incasement portion, vibration conduction system with sieve dish transmission fit for non-fastening formula drive sieve dish vibration.

Further, the rotating mechanism comprises a first rotating shaft, a driving structure and a first bearing bracket;

the powder sieving box is connected to one end of the first rotating shaft, and the driving structure is connected to the other end of the first rotating shaft and drives the first rotating shaft to rotate;

the first bearing support is sleeved outside the first rotating shaft along the circumferential direction and is rotatably connected with the first rotating shaft.

Further, the driving structure is a driving disc or a driving motor.

Further, the positioning mechanism comprises a locking disc, a locking pin, a second bearing bracket and a second rotating shaft;

the powder sieving box is connected to one end of the second rotating shaft, and the second bearing support is sleeved at the other end of the second rotating shaft along the circumferential direction and is in rotating connection with the second rotating shaft;

the locking disc is arranged on the second rotating shaft, the locking pin is connected to the second bearing support, and the locking pin is in locking limit fit with the locking disc.

Furthermore, a plurality of locking holes are formed in the locking disc, and the locking pins are in insertion fit with the locking holes.

Further, the powder flow rate control device also comprises a flow rate control assembly for regulating and controlling the amount of powder flowing into the sieve tray; the flow rate control assembly comprises a powder feed conduit and a forward drive structure;

the powder feeding pipeline penetrates through a feeding port at the top of the screen box cover up and down and is connected with the screen box cover in a sliding manner; the top of the powder feeding pipeline is externally connected with a powder feeding storage tank through a feeding connector; the forward driving structure is externally connected to the powder feeding pipeline and used for driving the powder feeding pipeline to move up and down so as to regulate and control the relative height between the powder feeding pipeline and the sieve tray.

Further, the bottom of the powder feeding pipeline is provided with a powder scattering mechanism, and the powder scattering mechanism and the sieve tray are correspondingly arranged.

Further, the vibration conduction system comprises a vibration driver and a regulation and control structure, the vibration driver is arranged through or not through the screen box cover or the powder screening box, and the vibration driver is in transmission fit with the screen disc;

the regulating structure is externally connected with the vibration driver and used for regulating the pressure exerted on the sieve tray by the vibration driver.

Furthermore, the vibration driver is an ultrasonic transducer or a voice coil driving vibrator, and the ultrasonic transducer is externally connected with an ultrasonic generator.

Furthermore, an accommodating cavity communicated with the powder sieving cavity is formed in the sieve box cover, the vibration driver is arranged in the accommodating cavity, and the vibration driver is connected with the sieve box cover in a sealing manner;

the regulation and control structure includes the screw of screwing up, screw up the screw with the vibration driver cooperation.

The powder sieving box is characterized by further comprising a vibrator, wherein the vibrator is externally connected to the outer side wall of the powder sieving box; preferably, the vibrator is an electric vibrator, a pneumatic vibrator, or a voice coil driven vibrator.

Further, the system also comprises a gas circulation system and an automatic control system; the gas circulation system comprises a gas conveying port, the gas conveying port is arranged at the feed port and the discharge port and is communicated with a powder sieving chamber, and the powder sieving chamber is externally connected with a gas conveying device through the gas conveying port; the automatic control system comprises a gas sensor and a gas pressure sensor and is used for monitoring the gas content and the gas pressure in the system in real time and adjusting the gas filling amount and the filling time.

The invention has the advantages that:

1. the whole powder sieving device is of a rotatable mechanical structure, so that the powder feeding storage tank and the powder storage tank are turned up and down when the powder feeding storage tank and the powder storage tank are installed and after powder sieving is finished, and the powder sieving device is easy to install and disassemble. Meanwhile, due to the arrangement of the rotating mechanism, the inclination angle of the device in the powder sieving process can be adjusted in real time, the working states of different inclination angles of the whole system in the powder sieving process are realized, and the working efficiency is optimized.

2. The vibration conduction system adopts a non-fastening and contact type vibration source to drive the sieve tray to vibrate, so that the sieve tray and the vibration source are in a free contact state, an operator can conveniently and directly replace and install sieve trays with different particle sizes according to requirements at any time, and the personalized sieve powder requirement is realized; the special invention of the non-fastening and contact type vibration source and the sieve tray realizes the direct replacement and simple installation of the sieve tray;

in addition, the sieve tray is an un-customized and universal experimental sieve tray, and can be directly matched with experimental sieve trays of different brands and different sieving grades on the market according to needs, so that the use cost of the device and the maintenance cost of the sieve tray are greatly reduced;

moreover, the vibration source can select ultrasonic vibration as required, and on the basis of satisfying normal metal 3D printing powder screening, can provide the screening of the superfine metal powder that other sieve powder equipment can not realize.

3. According to the invention, the powder feeding pipeline is controlled to move up and down along the longitudinal direction through the flow control assembly, namely, the vertical up-down height of the powder feeding outlet is adjusted, so that the relative height between the powder feeding pipeline and the sieve tray is adjusted, and the powder flow at the lower end of the powder feeding storage tank is further controlled.

4. The screening function of the powder under a quantitative gas environment (such as oxygen content) is realized by a protective gas conveying and regulating system and the air tightness design of the device.

5. The whole powder sieving equipment uses an industrial PLC electric control system, gas (such as oxygen, helium and the like) and a pressure sensor are added, the digital signals of the equipment pressure and the gas sensor can be accurately acquired, the real-time control and adjustment of the gas content and the pressure value are carried out, the automatic protection setting of the system when the gas content and the pressure are too high is realized, and the intelligent regulation function and the safety guarantee are played; meanwhile, the working mode of the vibration source during working can be regulated in real time, and the working mode comprises a continuous working mode or a time-controllable pulse working mode.

6. The powder screening device provided by the invention can be suitable for screening powder for metal 3D printing, and can realize standard interface matching with a powder cylinder of metal 3D printing equipment, namely, a powder feeding storage tank and a powder storing storage tank of the metal 3D printing equipment can be directly used for the powder screening device.

Drawings

Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to refer to like parts throughout the drawings. In the drawings:

FIG. 1 is a schematic perspective view of a powder sieving device according to an embodiment of the present invention;

FIG. 2 is a front plan view of a powder sieving device in an embodiment of the present invention;

fig. 3 is a side view of the powder sieving device in the embodiment of the invention.

In the figure:

1. a powder sieving box; 2. a sieve box cover; 3. a feed connector; 4. a discharge connector; 5. a positioning mechanism; 501. a locking disk; 502. a locking pin; 503. a second bearing bracket; 504. a second rotation shaft; 6. a rotation mechanism; 601. a first rotating shaft; 602. a drive structure; 603. a first bearing bracket; 7. a flow control assembly; 701. a powder feed conduit; 702. a driver; 703. a threaded driving anchor; 704. a fixing ring; 705. a powder feed connection head; 8. a sieve tray; 9. a dusting mechanism; 10. a vibrator; 11. a vibration driver; 12. a conductor; 13. a regulation structure; 1301. screwing down the screw; 1302. a bolt; 1303. a buffer member; 14. a gas delivery port; 15. a sealing member; 16. an observation window; 17. elastic support; 18. a fastener; 19. a hinge; 20. a bottom buffer; 21. the top is buckled with a cap.

Detailed Description

Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.

The invention discloses a vibrating powder sieving device, as shown in figures 1-3, the powder sieving device is mainly formed by combining a powder sieving box 1, a powder sieving box cover 2, a positioning mechanism 5 and a rotating mechanism 6, wherein:

the sieve box cover 2 is covered on the top of the powder sieving box 1, and the inner side surface of the sieve box cover 2, namely the surface contacting with powder, can adopt a full-plane design, so that the sieve box is convenient to clean quickly; the sieve box cover 2 and the powder sieving box 1 are rotationally connected and form a closed powder sieving chamber in a surrounding manner; the top of the sieve box cover 2 is provided with a feed inlet communicated with the sieve powder chamber, and a powder feeding storage tank (not shown) can be connected to the feed inlet; the bottom of the powder sieving box 1 is provided with a discharge hole communicated with the powder sieving chamber, and a powder storage tank (not shown) can be connected at the discharge hole;

the rotating mechanism 6 and the positioning mechanism 5 are respectively externally connected to two opposite sides of the powder sieving box 1, and are both rotationally connected with the powder sieving box 1; the rotary connection can be coaxial rotation, and certainly can also be designed to be non-coaxial rotation according to the requirement, and is not particularly limited; the powder sieving box 1 is turned upside down relative to the positioning mechanism 5 and the rotating mechanism 6 under the driving action of the rotating mechanism 6, and the rotating angle and the inclined position of the powder sieving box 1 are limited by the positioning mechanism 5.

In the above embodiment, the powder sieving box 1 can be turned upside down relative to the positioning mechanism 5 and the rotating mechanism 6 under the driving action of the rotating mechanism 6, that is, the rotation angle and the inclined position of the powder sieving box 1 can be controlled by driving the rotating mechanism 6 to rotate; specifically, the method comprises the following steps:

before use, the powder feeding storage tank can be conveniently installed by driving the rotating mechanism 6 to rotate, so that the problems of dumping of heavy objects and powder leakage in the installation and disassembly processes are avoided; first disengaging the locking connection between the locking disc 501 and the locking pin 502, thereby unlocking the first rotation shaft 601 and the second rotation shaft 504; then, the driving structure 602 is driven to rotate clockwise or counterclockwise, so as to drive the powder sieving box 1 to rotate, and if the powder sieving box rotates 180 degrees, the top feed port of the powder sieving box cover 2 is located at the bottom position, which is convenient for installing the powder feeding storage tank; when the locking pin 502 is automatically inserted into the reserved locking hole of the locking disk 501 again, the first rotating shaft 601 and the second rotating shaft 504 are locked and the rotation is stopped.

In the using process, the inclined position of the powder sieving box 1 can be controlled by driving the rotating mechanism 6 to rotate, so that the flow rate of powder is adjusted, the sieving efficiency is optimized, and the working efficiency is improved; first disengaging the locking connection between the locking disc 501 and the locking pin 502, thereby unlocking the first rotation shaft 601 and the second rotation shaft 504; then drive structure 602 and carry out clockwise or anticlockwise rotation, therefore drive sieve powder case 1 and rotate, can select required inclination this moment, owing to reserved a certain amount of locking holes on the locking dish 501, when the locking pin 502 imbeds in specific locking hole for sieve powder case 1 forms the slope of specific angle, satisfies the demand that different powder were sieved.

It should be noted that the adjustment of the inclination angle is realized by driving the driving structure 602 to rotate and driving the rotation shaft to rotate, and the adjustment operation is independent of the powder sieving process, so that the automatic adjustment can be performed according to the real-time sieving state obtained by the observation window 16 during the powder sieving process.

As another embodiment of the present invention, the sifter box cover 2 is rotatably connected to the sifter box 1 by a hinge 19, and fig. 3 specifically shows a connection manner using T-shaped and U-shaped hinges.

As another embodiment of the present invention, the sieve box cover 2 is fastened to the sieve powder box 1 by a fastening member 18, and as shown in fig. 1, the sieve box cover 2 may be fastened to the sieve powder box 1 by the fastening member 18 in a push-turn manner, so that the sieve powder chamber is closed under a pressurized atmosphere. The fastener 18 may be a latch or any other quick-clamp or threaded clamp configuration, and is not particularly limited.

As another embodiment of the present invention, a sealing member 15 is provided between the powder sieving box 1 and the powder sieving box cover 2 to achieve the sealing of the powder sieving chamber. The sealing member 15 may be a gasket.

As another embodiment of the invention, the powder sieving device further comprises a sieve tray 8 and a vibration conduction system, wherein the sieve tray 8 is replaceably installed inside the powder sieving box 1, it can be understood that the sieve tray 8 can be conveniently replaced according to needs, and the replacement of the sieve tray 8 can be realized in a direct placement manner without tools; specifically, the sieve tray 8 is arranged in the powder sieving box 1 through the bottom buffer member 20 and is abutted against the inner side wall of the powder sieving chamber, and the top of the sieve tray 8 and the side wall of the top of the powder sieving box 1 are positioned on the same horizontal plane, so that the sieve tray is pressed when the sieve box cover 2 is closed, and the position of the sieve tray is prevented from moving; the bottom buffer member 20 plays a role in sealing, and can buffer the sieve tray 8 and adjust the height in a small range when the sieve box cover 2 is closed and the sieve tray 8 is compressed, so that the mounting firmness of the sieve tray 8 is further improved; further, the bottom bumper 20 may be a gasket or a gasket, or any other material having elasticity; and the cross section of the bottom bumper 20 may be circular, rectangular, square, and a hollow structure in these shapes, without being particularly limited;

vibration conduction system and 8 transmission coordination of sieve tray, vibration conduction system mainly used non-fastening formula drive sieve tray 8 vibration, can understand that vibration conduction system only need through contact sieve tray 8 and need not with 8 fixed connection of sieve tray alright drive sieve tray 8 vibration, sieve tray 8 is in free contact state with the vibration source promptly, convenient to use person changes the sieve tray 8 of different particle sizes at any time, or the sieve tray 8 that is applicable to different metal powder materials of same particle size, and the vibratory screening effect of sieve tray 8 can also be controlled to the output through regulation and control vibration source.

As another embodiment of the present invention, the rotating mechanism 6 includes a first rotating shaft 601, a driving structure 602, and a first bearing bracket 603, as shown in fig. 1, the first rotating shaft 601 is mainly used for driving the powder sieving box 1 to rotate, specifically: the powder sieving box 1 is connected to one end of the first rotating shaft 601, the driving structure 602 is connected to the other end of the first rotating shaft 601, and the driving structure 602 drives the rotation of the first rotating shaft 601, thereby driving the rotation of the powder sieving box 1; the first bearing bracket 603 is circumferentially sleeved outside the first rotating shaft 601, the first rotating shaft 601 is rotatably connected with the first bearing bracket 603, and the first bearing bracket 603 can be used for supporting the first rotating shaft 601 and fixing the powder sieving device on an external frame (not shown) for bearing the whole powder sieving device.

As another embodiment of the present invention, the driving structure 602 is a driving disk, as shown in fig. 1, the driving disk is fixed on the first rotating shaft 601, and the operator can rotate the driving disk by himself, so as to drive the powder sieving box 1 to rotate. Of course, the operator can also increase the wrench to increase the driving force, and can also increase the driving force of the driving disk in a worm gear transmission mode.

As another embodiment of the present invention, the driving structure 602 is a driving motor (not shown), and one end of the first rotating shaft 601 is connected to an output shaft end of the driving motor, so that the driving motor rotates to drive the first rotating shaft 601 to rotate.

As another embodiment of the present invention, the first bearing bracket 603 may be replaced with a bearing bush or other type of bearing fixing component, which may be selected according to actual needs.

As another embodiment of the present invention, the positioning mechanism 5 includes a locking disk 501, a locking pin 502, a second bearing bracket 503 and a second rotating shaft 504, as shown in fig. 1, the sifting box 1 rotates relative to the second bearing bracket 503 through the arrangement of the second rotating shaft 504, and the sifting box 1 can be fixed at a specific sifting inclination angle and working position through the cooperation of the locking disk 501 and the locking pin 502; specifically, the method comprises the following steps: the powder sieving box 1 is connected to one end of the second rotating shaft 504, the second bearing support 503 is sleeved on the other end of the second rotating shaft 504 along the circumferential direction, and the second rotating shaft 504 is rotatably connected with the second bearing support 503; since the locking disk 501 is fixed on the second rotating shaft 504 and the locking disk 501 is arranged close to the powder sieving box 1, the locking disk 501 and the powder sieving box 1 rotate together, the locking pin 502 is connected on the second bearing bracket 503, when the powder sieving box 1 rotates to a required inclination angle, the locking pin 502 and the locking disk 501 are locked in a spacing fit, and therefore the powder sieving box 1 is fixed at a required working position. Furthermore, the second bearing bracket 503 may be arranged to form a support for the second rotation shaft 504 and may also be used to fix the powder sieving device to an outer frame (not shown) carrying the whole powder sieving device.

As another embodiment of the present invention, the locking plate 501 is provided with a plurality of locking holes, that is, the rotation angle and the inclined position of the sifting box 1 are locked by the insertion fit of the locking holes and the locking pins 502, so as to prevent the sifting box 1 from being accidentally rotated. In addition, the locking hole may be opened at a specific position of the locking disk 501 according to actual needs, or the shape and size of the locking hole may be designed according to actual needs, and is not particularly limited.

It should be noted that the locking pin 502 may be driven by a manual, pneumatic or electric drive method according to actual conditions, and is not particularly limited.

As another embodiment of the present invention, the second bearing bracket 503 may be replaced with a bearing bush or other type of bearing fixing component, which may be selected according to actual requirements.

As another embodiment of the present invention, the powder sieving device further comprises a flow control assembly 7, which is mainly used for regulating and controlling the amount of powder flowing into the sieving disc 8; the flow control assembly 7 comprises a powder feed conduit 701 and a forward drive structure; as shown in fig. 2 and 3, the powder feeding pipe 701 is mainly used to guide powder onto the sieve tray 8 in the sieve powder chamber, and the powder feeding pipe 701 can move up and down under the driving action of the forward driving structure, specifically:

the powder feeding pipeline 701 is arranged at a top feeding port of the sieve box cover 2 and penetrates through the sieve box cover 2 up and down, the powder feeding pipeline 701 moves up and down relative to the sieve box cover 2 along the longitudinal direction, and the powder feeding pipeline 701 is connected in a sealing mode through a sealing component 15 to ensure the tightness between the powder feeding pipeline 701 and the sieve box cover 2; the top of the powder feeding pipe 701 is communicated with the bottom end of the feeding connector 3, and the top of the feeding connector 3 is connected with a powder feeding storage tank positioned at the upper part of the powder sieving device, so that powder is guided to enter the powder feeding pipe 701 and then flows into the sieving disc 8; and the powder feeding pipe 701 and the feeding connector 3 are also hermetically connected by the sealing member 15; the sealing member 15 may be a piston seal ring. The forward driving structure is externally connected to the powder feeding pipe 701 and is mainly used for driving the powder feeding pipe 701 to move up and down so as to regulate the relative height between the powder feeding pipe 701 and the sieve tray 8.

For example, by adjusting the forward driving structure so that the powder feed pipe 701 moves longitudinally downward as a whole, close to the sieve tray 8, the relative height between the powder feed pipe 701 and the sieve tray 8 is reduced, thereby reducing the amount of powder fed.

As another embodiment of the invention, the discharge port at the bottom of the powder sieving box 1 is connected with a powder storage tank at the lower part of the powder sieving device through a discharge connector 4, and powder is guided into the powder storage tank. The external powder storage tank that deposits to ejection of compact connector 4 and sieve powder case 1 sealing connection.

As another embodiment of the present invention, the feeding connector 3 may be a flange interface, or a connector having the same function.

As another embodiment of the present invention, the discharging connector 4 may be a flange interface, or a connector having the same function.

It should be noted that flange interfaces conforming to the ISO-KF DN 40 standard or other standards may be used for both the feed connector 3 and the discharge connector 4. Additional guide lines or assemblies may also be added before the powder enters the powder feed line 701 or flows out to the powder storage tank.

As another embodiment of the present invention, the feeding connector 3 is connected to the sieve box cover 2 by a top snap cap 21, as shown in fig. 1, the top snap cap 21 is fixed to the sieve box cover 2 by bolts, and a through hole is provided on the top snap cap 21, the feeding connector 3 is disposed through the through hole, and the bottom end of the feeding connector 3 is connected to the powder feeding pipe 701 through the top inlet of the sieve box cover 2. Of course, the feeding connector 3 may be fixed to the sieve box cover 2 by other fixing components, or may be directly fixed to the sieve box cover 2, which is not particularly limited.

As another embodiment of the present invention, a powder scattering mechanism 9 is disposed at the bottom of the powder feeding pipe 701, as shown in fig. 2, the powder scattering mechanism 9 is connected to the bottom end of the powder feeding pipe 701, and the powder scattering mechanism 9 is disposed corresponding to the sieve tray 8, and is mainly used for scattering the powder flowing out from the powder feeding pipe 701 onto the sieve tray 8, that is, scattering the powder onto the sieve tray 8 with a larger area, so as to improve the sieving efficiency.

It should be noted that the powdering mechanism 9 is not particularly limited, and any powdering mechanism 9 that can drop the powder flowing out of the powder feed pipe 701 onto a larger area of the sieve tray 8 can be used.

As another embodiment of the present invention, the forward driving structure is a pneumatic, electric or mechanical driver, that is, it is understood that the powder feeding pipe 701 can be controlled to move up and down along the longitudinal direction by a pneumatic, electric or mechanical driving method.

As another embodiment of the present invention, the advancing driving structure comprises a driver 702, a screw propelling anchor 703, a fixing ring 704 and a powder feeding connector 705, the powder feeding connector 705 is connected to the powder feeding pipe 701, and the powder feeding connector 705 is disposed on the driver 702 through the fixing ring 704, the powder feeding connector 705 is mainly used for driving a stopper of the powder feeding pipe 701, and is pushed or pulled by the driver 702 and the fixing ring 704; a threaded push anchor 703 is provided on the screen box cover 2 and a driver 702 is threadedly engaged with the threaded push anchor 703. The powder feed connection 705 and the fixing ring 704 are moved up and down longitudinally by rotating the driver 702 clockwise or counterclockwise, thereby moving the powder feed pipe 701 up and down in the longitudinal direction.

As another embodiment of the present invention, the driver 702 may be driven manually or electrically. The surface of the driver 702 is knurled to enhance grip for lateral clockwise or counterclockwise rotation, although any other grip enhancing technique may be used to facilitate rotation of the driver 702.

As another embodiment of the present invention, the vibration conduction system includes a vibration driver 11 and a regulation structure 13, as shown in fig. 2, the vibration driver 11 is disposed through the screen box cover 2, and the vibration driver 11 is in transmission fit with the screen tray 8, it can be understood that the screen tray 8 and the vibration driver 11 are in a free contact state, and the two are directly or indirectly abutted, and the vibration of the vibration driver 11 can be directly or indirectly transmitted to the screen tray 8 to drive the screen tray 8 to vibrate; the control structure 13 is externally connected to the vibration driver 11, and the control structure 13 is mainly used for adjusting the pressure applied to the sieve tray 8 by the vibration driver 11.

As another embodiment of the present invention, a vibration driver 11 is disposed through the powder sieving box 1 (not shown), and the vibration driver 11 is in driving fit with the sieving disc 8; a person skilled in the art can set the vibration driver 11 on the powder sieving box 1 in a penetrating manner according to actual needs, for example, the powder sieving box 1 is provided with an accommodating cavity communicated with the powder sieving cavity, and the vibration driver 11 is arranged in the accommodating cavity; it is also possible to add a vibration conducting layer (e.g. a rubber layer) with a sealing function between the vibration driver 11 and the sieve tray 8, through which vibration of the vibration driver 11 is indirectly transmitted to the sieve tray 8.

As another embodiment of the present invention, the vibration driver 11 is not disposed through the powder sieving box 1 or the sieving box cover 2 (not shown), for example, the vibration driver 11 may be externally connected to the outer side wall of the powder sieving box 1 or the sieving box cover 2, and the vibration of the sieving plate 8 may be driven by the vibration of the whole powder sieving box 1, or the vibration of the sieving plate 8 may be driven by magnetic conduction.

As another embodiment of the present invention, the vibration conduction system further comprises a conductor 12, the conductor 12 being mainly used for transmitting the vibration of the vibration driver 11 to the sieve tray 8 in a free contact manner; as shown in fig. 2, the conductor 12 is drivingly connected to the bottom of the vibration driver 11, and the conductor 12 abuts against the sieve tray 8, so that the vibration of the vibration driver 11 is transmitted from the conductor 12 to the sieve tray 8, thereby driving the vibration of the sieve tray 8.

It should be noted that the conductor 12 may be any shape of part fastened to the vibration driver 11, which can realize transmission ratio, such as a screw capable of conducting high-frequency vibration.

As another embodiment of the present invention, a containing cavity communicated with the powder sieving cavity is formed on the sieve box cover 2, as shown in fig. 2, the vibration driver 11 is disposed in the containing cavity, and the vibration driver 11 and the sieve box cover 2 are hermetically connected by a sealing component 15, so as to realize sealing between the vibration driver 11 and the sieve box cover 2. The sealing member 15 may be a gasket.

As another embodiment of the present invention, the adjusting structure 13 comprises a tightening screw 1301, the tightening screw 1301 is matched with the vibration driver 11, the tightening screw 1301 is mainly used for adjusting the pressure applied by the vibration driver 11 on the screen tray 8, that is, the magnitude of the pressure can be adjusted by the external tightening screw 1301. Referring to fig. 1 and 2, a connection cavity is formed in the top buckle cap 21 and penetrates up and down, a tightening screw 1301 penetrates through the connection cavity, and the tightening screw 1301 is matched with the vibration driver 11.

It should be noted that the tightening screw 1301 of the present invention can be replaced by a quick clamping structure, without being loaded on the top snap cap 21, so long as the adjustment of the pressure exerted by the vibration driver 11 on the sieve tray 8 is achieved.

As another embodiment of the present invention, the regulating structure 13 includes a tightening screw 1301 and a bolt 1302, the bolt 1302 is disposed in the connection cavity of the top buckle cap 21, an upper portion of the bolt 1302 is engaged with the tightening screw 1301, and a lower portion of the bolt 1302 is engaged with the vibration driver 11, thereby transmitting the pressure to the vibration driver 11 through the bolt 1302.

Note that the bolt 1302 may be replaced with an elastic member such as a spring as long as it can transmit the pressing force to the vibration driver 11.

As another embodiment of the present invention, a buffer member 1303 is provided between the bolt 1302 and the vibration actuator 11, and a lower portion of the bolt 1302 is in contact with the vibration actuator 11 through the buffer member 1303, so that the pressure is transmitted from the tightening screw 1301 to the vibration actuator 11 through the buffer member 1303. Further, the cushioning member 1303 mainly functions to cushion the connection between the bolt 1302 and the vibration driver 11.

The cushioning member 1303 in the present invention may be a rubber cushion or an elastic member, and is not particularly limited.

In another embodiment of the present invention, the vibration driver 11 is an ultrasonic transducer, and the ultrasonic transducer is externally connected to an ultrasonic generator (not shown). The transducer 12 is driven by an ultrasonic transducer to transmit high-frequency vibration to the screening disc 8, so that the screening process of high-frequency vibration is realized.

As another embodiment of the present invention, the vibration driver 11 is a voice coil driving vibrator, that is, a voice coil driving vibrator for operation at a low frequency or a high frequency may be used as the vibration driver 11 instead of the ultrasonic transducer.

As another embodiment of the present invention, the powder sieving device further includes a vibrator 10, the vibrator 10 is externally connected to the outer side wall of the powder sieving box 1, and it can be understood that the vibrator 10 can be directly fixed on the outer side wall of the powder sieving box 1, for example, by screws; the vibration of the vibrator 10 can also be transmitted to the powder sieving box 1, the powder feeding storage tank and the powder storing storage tank in an indirect bearing connection mode; the vibrator 10 is mainly used for driving the vibration of the powder sieving box 1, the powder feeding storage tank and the powder storing storage tank, and increasing the flowability of powder in the whole device system.

As another embodiment of the present invention, the vibrator 10 is an electric vibrator, a pneumatic vibrator or a voice coil driving vibrator, which can be selected according to actual needs and is not particularly limited.

As another embodiment of the present invention, the powder sieving apparatus further includes an observation window 16, and the observation window 16 is disposed on the sieve box cover 2 and is mainly used for observing the powder sieving process in real time to monitor the powder sieving process.

As another embodiment of the present invention, the powder sieving apparatus further includes a frame (not shown) for integrally supporting the powder sieving device formed by combining the powder sieving box 1 and the powder sieving box cover 2, as shown in fig. 1, the powder sieving box 1 is fixed on the frame by the first bearing bracket 603 and the second bearing bracket 503, and the elastic support 17 is disposed between the first bearing bracket 603 and the second bearing bracket 503 and the frame to reduce the vibration of the powder sieving box 1 during the operation.

The elastic support 17 may be a rubber support or a spring support, or may be other vibration absorbing materials having a load bearing capacity, and is not particularly limited.

As another embodiment of the present invention, the powder sieving apparatus further comprises a powder feeding storage tank and a powder storing storage tank (not shown), wherein the powder feeding storage tank is connected to the sieving box cover 2 through a feeding connector 3, and the powder storing storage tank is connected to the sieving box 1 through a discharging connector 4.

As another embodiment of the invention, the powder sieving device also comprises a gas circulation system and an automatic control system, and the whole powder sieving device adopts an integral airtight design and has good airtightness; the gas circulation system comprises a gas conveying port 14, the gas conveying port 14 is arranged at the feed inlet and the discharge outlet and is communicated with the powder sieving chamber, the powder sieving chamber is externally connected with a gas conveying device through the gas conveying port 14, namely the gas conveying port 14 is mainly used for being connected with the gas conveying device outside the powder sieving device; the automatic control system comprises a gas sensor and a pressure sensor and is used for monitoring the gas content and the gas pressure in the powder screening chamber in real time and adjusting the gas filling amount and the filling time.

As another embodiment of the invention, due to the arrangement of the automatic control system, the powder sieving device can quantitatively and safely and efficiently sieve the metal powder which is easy to oxidize and has high activity in a low-oxygen and high-pressure environment.

As another embodiment of the present invention, the feed connector 3 and the discharge connector 4 are provided with gas delivery ports 14, respectively, as shown in FIG. 1.

It is to be noted that the term "comprises" and any variations thereof in the description and claims of the present invention is intended to cover non-exclusive inclusions, such that the inclusion of a list of elements is not necessarily limited to those elements explicitly listed, but may include other elements not explicitly listed or inherent to such elements.

In the present invention, the terms "upper", "lower", "bottom", "top", "left", "right", "inside", "outside", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings. These terms are used primarily to better describe the invention and its embodiments and are not intended to limit the indicated devices, elements or components to a particular orientation or to be constructed and operated in a particular orientation.

Moreover, some of the above terms may be used to indicate other meanings besides the orientation or positional relationship, for example, the term "on" may also be used to indicate some kind of attachment or connection relationship in some cases. The specific meanings of these terms in the present invention can be understood by those skilled in the art as appropriate.

Furthermore, the description of "first," "second," etc. referred to in this disclosure is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implying any number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature.

In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.

Claims

1. The utility model provides a shale shaker powder device which characterized in that, includes sieve powder case (1), sieve case lid (2), positioning mechanism (5) and rotary mechanism (6), wherein:

the sieve box cover (2) covers the top of the sieve powder box (1), and the sieve powder box (1) is rotatably connected with the sieve box cover (2) and surrounds to form a sieve powder chamber;

the top of the sieve box cover (2) is provided with a feed inlet communicated with the powder sieving chamber, and the bottom of the sieve box (1) is provided with a discharge outlet communicated with the powder sieving chamber;

the rotating mechanism (6) and the positioning mechanism (5) are externally connected to two opposite sides of the powder sieving box (1) respectively and are in rotating connection with the powder sieving box (1); the rotating mechanism (6) drives the powder sieving box (1) to turn up and down, and the rotating angle and the inclined position of the powder sieving box (1) are limited through the positioning mechanism (5).

2. A vibrating powder screening device according to claim 1, characterized in that it further comprises a screening disc (8) and a vibration conducting system, said screening disc (8) being exchangeably arranged inside the powder screening box (1), said vibration conducting system being in driving engagement with the screening disc (8) for non-fastened driving the screening disc (8) into vibration.

3. The vibrating powder sifter device of claim 1, wherein the rotating mechanism (6) comprises a first rotating shaft (601), a driving structure (602) and a first bearing bracket (603);

the powder sieving box (1) is connected to one end of the first rotating shaft (601), the driving structure (602) is connected to the other end of the first rotating shaft (601), and drives the first rotating shaft (601) to rotate;

the first bearing support (603) is sleeved outside the first rotating shaft (601) along the circumferential direction and is rotatably connected with the first rotating shaft (601).

4. The vibrating powder sifter device of claim 1, wherein the positioning mechanism (5) comprises a locking disc (501), a locking pin (502), a second bearing bracket (503) and a second rotation shaft (504);

the powder sieving box (1) is connected to one end of the second rotating shaft (504), and the second bearing support (503) is sleeved on the other end of the second rotating shaft (504) along the circumferential direction and is rotatably connected with the second rotating shaft (504);

the locking disk (501) is arranged on the second rotational axis (504), the locking pin (502) is connected to the second bearing bracket (503), and the locking pin (502) is in locking limit fit with the locking disk (501).

5. The vibrating powder screening device according to claim 4, characterized in that the locking disk (501) is provided with a plurality of locking holes, and the locking pins (502) are in plug fit with the locking holes.

6. A vibrating powder sifter device according to claim 2, further comprising a flow rate control assembly (7) for regulating the amount of powder flowing into the sifter tray (8); the flow rate control assembly (7) comprises a powder feed conduit (701) and a forward drive structure;

the powder feeding pipeline (701) vertically penetrates through a feeding port at the top of the sieve box cover (2) and is connected with the sieve box cover (2) in a sliding manner; the top of the powder feeding pipeline (701) is externally connected with a powder feeding storage tank through a feeding connector (3);

the forward driving structure is externally connected to the powder feeding pipeline (701) and used for driving the powder feeding pipeline (701) to move up and down so as to regulate and control the relative height between the powder feeding pipeline (701) and the sieve tray (8).

7. A vibrating powder screen device according to claim 6, characterized in that the bottom of the powder feed pipe (701) is provided with a dusting mechanism (9), and the dusting mechanism (9) is arranged in correspondence with the screen tray (8).

8. A vibrating powder sifter device according to claim 2, wherein the vibration conduction system comprises a vibration driver (11) and a regulating structure (13), the vibration driver (11) being arranged through or not through the sifter cover (2) or sifter box (1), and the vibration driver (11) being in driving engagement with the sifter disc (8);

the adjusting and controlling structure (13) is externally connected to the vibration driver (11) and is used for adjusting the pressure applied to the sieve tray (8) by the vibration driver (11).

9. The vibrating powder sieving device of claim 8, characterized in that the sieve box cover (2) is opened with a containing cavity communicated with the powder sieving chamber, the vibrating driver (11) is arranged in the containing cavity, and the vibrating driver (11) is connected with the sieve box cover (2) in a sealing way;

the adjusting and controlling structure (13) comprises a tightening screw (1301), and the tightening screw (1301) is matched with the vibration driver (11).

10. The vibrating powder sieving device of claim 1, characterized by further comprising a vibrator (10), wherein the vibrator (10) is circumscribed on the outer side wall of the powder sieving box (1); preferably, the vibrator (10) is an electric vibrator, a pneumatic vibrator or a voice coil driven vibrator.

11. The vibratory powder sifter device of claim 1 further comprising a gas circulation system and an automated control system;

the gas circulation system comprises a gas conveying opening (14), the gas conveying opening (14) is arranged at the feed opening and the discharge opening and is communicated with a powder sieving chamber, and the powder sieving chamber is externally connected with a gas conveying device through the gas conveying opening (14);

the automatic control system comprises a gas sensor and a gas pressure sensor and is used for monitoring the gas content and the gas pressure in the system in real time and adjusting the gas filling amount and the filling time.