CN218963261U - Powder material screening device and 3D printing powder cleaning device - Google Patents

Abstract

The utility model proposes a powder material screening device and a 3D printing powder cleaning device, which belong to the technical field of material screening. The screen structure, the plane where the screen structure is located and the radial section of the screen cylinder form a blanking angle. The bottom wall of the sieve is provided with a sieved particle powder discharge port which communicates with the inner cavity of the sieve cylinder, and the large particle powder discharge port and the sieved particle powder discharge port are separated by a screen structure. The utility model enables the large particle powder to automatically fall along the large particle powder discharge port and flow out of the sieve cylinder through the falling angle, which saves the process of manual opening and cleaning, and improves the cleaning efficiency of the large particle powder at the same time , also reduces the labor intensity.

Description

Powder material screening device and 3D printing powder cleaning device

technical field

The utility model belongs to the technical field of material screening, and relates to the cleaning and screening technology of powder materials, in particular to a powder material screening device and a 3D printing powder cleaning device.

Background technique

Whether it is a powder material processing enterprise or an enterprise that uses powder material as raw material for product production, it is in the stage of rapid development. When using powder material, it is necessary to ensure its quality. Generally, it is necessary to ensure that the particle size of the powder material is within a certain range. Therefore, it is necessary to sieve the particle size of the powdered material before use to ensure that the particle size distribution of the powdered material is basically uniform.

At present, most of the screening machines suitable for powder materials use screen screening, and cooperate with mechanical vibration and ultrasonic vibration to provide vibration force for the screen, but the large particle materials left on the screen after screening need to be manually opened for cleaning, not only The cleaning efficiency is low, and frequent operations are required, and the labor intensity is high.

Utility model content

Aiming at the problems in the prior art described above that after the sieving of the powdery materials, the large particle materials left on the screen need to be manually opened for cleaning, not only the cleaning efficiency is low, but also the labor intensity is high. The utility model proposes Powder material screening device and 3D printing powder cleaning device.

The utility model sets the blanking angle, and at the same time sets the large particle powder blanking port and the sieved particle powder blanking port on the cylinder wall of the sieve cylinder. The particle powder discharge port automatically falls and flows out of the sieve cylinder, which saves the process of manual opening and cleaning, improves the cleaning efficiency of large particle powder, and reduces labor intensity; the specific technical scheme is as follows:

The powder material screening device includes a screen cylinder and a screen structure arranged in the inner cavity of the screen cylinder along the radial direction of the screen cylinder, and a blanking clamp is formed between the plane of the screen structure and the radial section of the screen cylinder Corner, the side wall of the sieve drum is provided with a large-grained powder drop opening connected with the inner cavity of the sieve drum, and the bottom wall of the sieve drum is provided with a sieved particle powder drop port connected with the inner cavity of the sieve drum. The feed port, the large particle powder discharge port and the sieved particle powder discharge port are separated by a screen structure.

It is further defined that the screen structure includes a fine screen.

It is further defined that the screen structure also includes a coarse screen, the coarse screen is arranged above the fine screen, the coarse screen and the fine screen are arranged along the radial direction of the screen cylinder, and the coarse Both the plane where the screen is located and the plane where the fine screen is located form a blanking angle with the radial section of the sieve drum, and a large particle powder collection chamber is formed between the coarse screen and the fine screen. The particle powder discharge port communicates with the large particle powder collection cavity, and the sieved particle powder discharge port is arranged below the fine screen.

Further defined, the powder material screening device further includes a grid plate, the grid plate is arranged along the radial direction of the screen cylinder, and the grid plate is arranged above the coarse screen, and the retained particle powder The feeding port is arranged between the grid plate and the coarse screen.

Further defined, the powder material sieving device also includes a sieved powder cylinder, a large particle powder cylinder and a large particle powder recovery valve, the sieved powder cylinder communicates with the sieved particle powder discharge port, the large particle powder The particle powder cylinder is connected with the large particle powder discharge port through the large particle powder recovery valve.

It is further defined that an ultrasonic generator is arranged on the screen drum.

3D printing powder cleaning device, including a powder cleaning bin, a pneumatic vibrator and the above-mentioned powder material screening device, the powder outlet of the powder cleaning bin communicates with the powder inlet of the sieve cylinder, and the powder inlet of the sieve cylinder The mouth is set above the coarse screen, and the pneumatic vibrator is set in the inner cavity of the powder cleaning bin.

It is further defined that the 3D printed part powder cleaning device also includes a turning mechanism and a rotating mechanism, both of which are placed in the inner cavity of the powder cleaning chamber, and the turning mechanism and the rotating mechanism are connected, and the pneumatic The vibrator is arranged above the turning mechanism and the rotating mechanism, and both the rotating mechanism and the pneumatic vibrator are connected with the 3D printing part.

It is further defined that the device for cleaning powder of 3D printed parts also includes a storage platform, the storage platform is arranged above the turning mechanism and the rotation mechanism, the storage platform is fixedly connected with the rotation mechanism, and the pneumatic vibrator is connected to the storage platform connected, the rotating mechanism is connected with the 3D printed part through the storage table.

Compared with the prior art, the utility model has the beneficial effects of:

1. The powdery material screening device of the present invention forms a blanking angle between the plane of the screen structure and the radial section of the screen cylinder, and at the same time, it is set on the side wall of the screen cylinder and the inner cavity of the screen cylinder Connected large particle powder discharge port, on the bottom wall of the sieve cylinder, a sieved particle powder discharge port connected to the inner cavity of the sieve cylinder is set, and the large particle powder can be moved along the large particle The powder discharge port automatically falls and flows out of the sieve cylinder, which saves the process of manual opening and cleaning, improves the cleaning efficiency of large particle powder, and reduces labor intensity.

2. The sieve structure of the present invention includes a fine sieve, through which the powdery material is sieved, so that the large particles in the powdery material are separated from the small particles.

3. The sieve structure of the present invention also includes a coarse sieve, which is used to protect the fine sieve, block part of the large particle powder, reduce damage to the fine sieve, The large particle materials between the coarse screen and the fine screen are cleaned and flowed out.

4. The powder material screening device of the present invention also includes a grid plate, which can prevent hard objects from falling on the coarse screen and the fine screen, and smash the coarse screen and the fine screen; The grating also reduces the falling speed of powdered materials and reduces the load on the coarse and fine screens.

5. The powder material sieving device of the present utility model also includes a sieved powder cylinder, a large particle powder cylinder and a large particle powder recovery valve, through which the sieved powder is collected intensively through the sieved powder cylinder, and through the large particle powder The barrel collects the large particle powder left in the large particle powder collection cavity in a concentrated manner.

6. The powder material screening device of the present invention also includes an ultrasonic generator, which provides ultrasonic vibration force for the screen cylinder through the ultrasonic generator. When screening, the ultrasonic vibration force generated by the ultrasonic generator drives the coarse screen and the fine The sieve vibrates; after the sieving, the ultrasonic vibration force generated by the ultrasonic generator drives the large particle powder to flow out.

7. The powder cleaning device for 3D printed parts of the present invention includes a powder cleaning bin, a pneumatic vibrator and a powder material screening device. The pneumatic vibrator and the ultrasonic generator can be used together to drive the coarse screen and the fine screen to vibrate ; At the same time provide driving force for the outflow of large particle powder.

8. The powder cleaning device for 3D printed parts of the present invention also includes an overturning mechanism and a rotating mechanism. The overturning machine is used for turning over, and the rotating mechanism is used for rotation. At the same time, the vibration force generated by the pneumatic vibrator is used to remove the powder on the 3D printed parts. .

9. The powder cleaning device for 3D printed parts of the present invention also includes a storage table, through which the 3D printed parts are fixed and installed, and the pneumatic vibrator provides vibration force for cleaning the powder on the 3D printed parts.

Description of drawings

Fig. 1 is the structural representation of the utility model vibration mechanism;

Fig. 2 is the structural representation of the powder material screening device of the present invention;

Fig. 3 is the structural representation of pneumatic vibrator;

Fig. 4 is the structural representation of screening mechanism;

Among them, 1-turning mechanism, 2-rotating mechanism, 3-3D printing, 4-pneumatic vibrator, 5-screened powder cylinder, 6-large particle powder cylinder, 7-large particle powder recovery valve, 8-ultrasonic Generator, 9-fine mesh, 10-coarse mesh, 11-grid plate.

Detailed ways

The technical solution of the utility model will be further explained below in conjunction with the accompanying drawings and embodiments, but the utility model is not limited to the implementation modes described below.

Example 1

The powdery material screening device of this embodiment includes a screen cylinder and a screen structure arranged in the inner cavity of the screen cylinder along the radial direction of the screen cylinder. Material angle, the side wall of the sieve cylinder is provided with a large particle powder discharge port connected with the inner cavity of the sieve cylinder, and the bottom wall of the sieve cylinder is provided with a sieved particle powder discharge port connected with the inner cavity of the sieve cylinder , The large particle powder discharge port and the sieved particle powder discharge port are separated by a screen structure. Wherein, the value of the blanking angle α is 5°-30°, specifically, it may be 5°, 10°, 15°, 20°, 25° or 30°. Specifically, the plane where the screen structure is located is an inclined surface. Preferably, the lower edge of the large particle powder discharge port is in contact with the edge of the inclined surface to facilitate the falling of the large particle powder; the sieve cylinder is a cylindrical cylinder structure, The discharge port of the sieved particle powder is a cone structure with a large top and a small bottom. Sieve the particle powder at the discharge port.

Referring to FIG. 4 , the screen structure of this embodiment includes a fine screen 9 .

Preferably, the screen structure of this embodiment also includes a coarse screen 10, the coarse screen 10 is arranged above the fine screen 9, the coarse screen 10 and the fine screen 9 are arranged radially along the screen cylinder, and The plane where the coarse screen 10 is located and the plane where the fine screen 9 is located form a blanking angle with the radial section of the screen drum, and a large particle powder collection chamber is formed between the coarse screen 10 and the fine screen 9, The large particle powder discharge port is connected with the large particle powder collection chamber, and the sieved particle powder discharge port is arranged below the fine screen 9 . Further preferably, the plane where the coarse screen 10 is located is parallel to the plane where the fine screen 9 is located, that is, the blanking angle formed between the plane where the coarse screen 10 is located and the radial section of the screen drum and the fine screen 9 The blanking angle formed between the plane where it is located and the radial section of the sieve cylinder is the same; the powder sieved from the coarse screen 10 and the powder that cannot pass through the fine screen 9 is a large particle powder, and the large particle powder The solids are collected in the large particle powder collection chamber, and flow out along the large particle powder discharge port to complete the cleaning of the large particle powder. The edge of the inclined surface of the fine screen 9 is in contact with the lower edge of the large particle powder discharge port.

The powdery material screening device of this embodiment further includes a grid plate 11 arranged along the radial direction of the screen cylinder, and the grid plate 11 is arranged above the coarse screen 10 . Preferably, the plane where the grid plate 11 is located is set perpendicular to the radial section of the sieve cylinder, and the grid plate 11 is set at the top powder inlet of the sieve cylinder.

Referring to Fig. 2, the powder material screening device also includes a sieved powder cylinder 5, a large particle powder cylinder 6 and a large particle powder recovery valve 7, the sieved powder cylinder 5 is connected with the sieved particle powder discharge port, and the large particle The powder cylinder 6 communicates with the large particle powder discharge port through the large particle powder recovery valve 7 . The sieved granular powder is concentratedly collected through the sieved powder cylinder 5, and the large-particle powder in the large-particle powder collection chamber is collected through the large-particle powder cylinder 6. The powdery material above the coarse screen 10 And the material above the grid plate 11 is very little, and it is enough to manually clean it regularly.

Referring to Fig. 3, an ultrasonic generator 8 is arranged on the screen drum. Preferably, the ultrasonic generator 8 is fixedly installed on the outer wall of the sieve drum, so as not to affect the screening of the fine screen 9 and the coarse screen 10 .

The powder material screening device of this embodiment, its working process is: the powder enters the inner cavity of the sieve cylinder along the powder inlet of the sieve cylinder, and falls on the grid plate 11, the grid plate 11 can prevent hard objects from falling fall on the coarse screen 10 and the fine screen 9 to prevent the coarse screen 10 and the fine screen 9 from being smashed; at the same time, the grid plate 11 can also reduce the falling speed of the powdery material, reducing the coarse screen 10 and the fine screen. The load of the screen 9; the powder falls on the coarse screen 10 along the grid plate 11, and the ultrasonic generator 8 is turned on, so that the screen drum, the fine screen 9 and the coarse screen 10 vibrate synchronously, and the powder is sieved , the powder after preliminary sieving by the coarse screen 10 falls to the fine screen 9, the coarse screen 10 can block part of the large particle powder, and protect the fine screen 9; Screening, the sieved powder enters the sieved powder cylinder 5 through the sieved powder discharge port for centralized collection, and stays in the large particle powder collection chamber between the coarse screen 10 and the fine screen 9 The large-particle powder enters the large-particle powder cylinder 6 through the large-particle powder discharge port for centralized collection, and the powdery material above the coarse screen 10 and the material above the grid plate 11 are very small, and manual cleaning is performed regularly That's it.

Example 2

Referring to Figures 1 to 3, the powder cleaning device for 3D printed parts in this embodiment includes a powder cleaning bin, a pneumatic vibrator 4 and the powder material screening device in Embodiment 1, the powder outlet of the powder cleaning bin and the inlet of the sieve cylinder The powder port is connected, the powder inlet of the sieve cylinder is arranged above the coarse screen 10, and the pneumatic vibrator 4 is arranged in the inner cavity of the powder cleaning bin. Specifically, the powder outlet of the powder cleaning bin is set at the bottom of the powder cleaning bin, and the powder cleaning bin is placed above the sieve drum so that the powder outlet of the powder cleaning bin is directly opposite to the powder inlet of the sieve drum, and the The powder coming out of the powder outlet of the silo directly falls into the inner cavity of the screen drum along the powder inlet of the screen drum; the vibration force generated by the pneumatic vibrator 4 can also work together with the ultrasonic vibration generated by the ultrasonic generator 8 to drive the coarse The sieve 10 and the fine sieve 9 vibrate, and at the same time, the vibration force generated by the pneumatic vibrator 4 and the ultrasonic vibration generated by the ultrasonic generator 8 act together as the driving force for the outflow of large particle powder.

The 3D printing powder cleaning device also includes a turning mechanism 1 and a rotating mechanism 2, both of which are placed in the inner cavity of the powder cleaning chamber, and the turning mechanism 1 and the rotating mechanism 2 are connected, and the pneumatic vibrator 4 is set on the Above the turning mechanism 1 and above the rotating mechanism 2 , the rotating mechanism 2 and the pneumatic vibrator 4 are connected to the 3D printed part 3 . Specifically, the overturning mechanism 1 is a gantry-type overturning mechanism, and a rotating mechanism 2 is arranged above the gantry-type overturning mechanism, and the rotating mechanism 2 is similar to a cake turntable when making a cake.

The 3D printing powder cleaning device also includes a storage table, which is arranged above the turning mechanism 1 and the rotation mechanism 2, the storage table is fixedly connected with the rotation mechanism 2, the pneumatic vibrator 4 is connected with the storage table, and the rotation mechanism 2 passes through the storage table. The platform is connected with the 3D printing part 3. Preferably, the plane where the storage table is located is perpendicular to the central rotation axis of the rotating mechanism 2; specifically, when cleaning the powder of the 3D printed part 3, the 3D printed part 3 is fixedly connected to the storage table, and the 3D The printed part 3 is turned over, and the 3D printed part 3 is rotated by the rotating mechanism 2. At the same time, the vibration force generated by the pneumatic vibrator 4 is used to remove the powder on the 3D printed part 3.

Claims (9)

1. The powder material screening device is characterized by comprising a screen cylinder and a screen structure arranged in the inner cavity of the screen cylinder along the radial direction of the screen cylinder, wherein a blanking included angle is formed between the plane of the screen structure and the radial section of the screen cylinder, a large-particle powder blanking port communicated with the inner cavity of the screen cylinder is arranged on the side wall of the screen cylinder, a screened particle powder blanking port communicated with the inner cavity of the screen cylinder is arranged on the bottom wall of the screen cylinder, and the large-particle powder blanking port and the screened particle powder blanking port are separated by the screen structure.

2. A powdered material screening device according to claim 1, characterized in that the screen arrangement comprises a fine screen (9).

3. The powder material screening device according to claim 2, characterized in that the screen structure further comprises a coarse screen (10), the coarse screen (10) is arranged above the fine screen (9), the coarse screen (10) and the fine screen (9) are arranged along the radial direction of the screen cylinder, a blanking included angle is formed between the plane of the coarse screen (10) and the radial section of the screen cylinder and between the plane of the fine screen (9), a large particle powder collecting cavity is formed between the coarse screen (10) and the fine screen (9), the large particle powder blanking port is communicated with the large particle powder collecting cavity, and the screened particle powder blanking port is arranged below the fine screen (9).

4. A powdered material screening means according to claim 3, characterized in that the powdered material screening means further comprises a grid plate (11), which grid plate (11) is arranged in the radial direction of the screen cylinder, and which grid plate (11) is arranged above the coarse screen (10).

5. The powder material screening device according to claim 4, further comprising a screened powder cartridge (5), a large particle powder cartridge (6) and a large particle powder recovery valve (7), the screened powder cartridge (5) being in communication with the screened particle powder blanking port; the large-particle powder cylinder (6) is communicated with a large-particle powder blanking port through a large-particle powder recycling valve (7).

6. A powdered material screening device according to any one of claims 1-5, c h a ra cte ri zed in that the screen drum is provided with an ultrasonic generator (8).

7.3D prints a powder cleaning device, a serial communication port, including clear powder storehouse, pneumatic vibrator (4) and the powdered material screening plant of claim 6, the play powder mouth of clear powder storehouse communicates with the inlet of a sieve section of thick bamboo, the inlet of a sieve section of thick bamboo sets up in the top of coarse screen (10), pneumatic vibrator (4) set up in the inner chamber of clear powder storehouse.

8. The 3D printing piece powder cleaning device according to claim 7, further comprising a turnover mechanism (1) and a rotating mechanism (2), wherein the turnover mechanism (1) and the rotating mechanism (2) are both arranged in an inner cavity of the powder cleaning bin, the turnover mechanism (1) is connected with the rotating mechanism (2), the pneumatic vibrator (4) is arranged above the turnover mechanism (1) and above the rotating mechanism (2), and the rotating mechanism (2) and the pneumatic vibrator (4) are both connected with the 3D printing piece (3).

9. The 3D printing piece powder cleaning device according to claim 8, further comprising a placement table, wherein the placement table is arranged above the turnover mechanism (1) and above the rotating mechanism (2), the placement table is fixedly connected with the rotating mechanism (2), the pneumatic vibrator (4) is connected with the placement table, and the rotating mechanism (2) is connected with the 3D printing piece (3) through the placement table.

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