A powder screening machine for 3D printing

Abstract

The utility model relates to the technical field of powder screening machine, put forward a kind of powder screening machine for 3D printing, including base, the top of base is fixedly connected with vibration spring, the top of vibration spring is fixedly connected with ultrasonic vibration seat, the top of ultrasonic vibration seat is fixedly connected with bunker, the inside fixed connection of bunker is limit ring, the top of limit ring is attached with mesh screen, the outer wall fixed connection of bunker has return spring, in the utility model, by setting fixed plate, when needing to clean mesh screen, after upper cover is disassembled, pull fixed plate, fixed plate will slide along bunker, and finally separate from mesh screen contact, at this moment, mesh screen can be taken from limit ring, by setting return spring, return spring will exert pulling force to fixed plate by self elastic force, so that it is attached with the top of mesh screen, at this moment, mesh screen will become fixed state under the action of limit ring and fixed plate.

Description

Technical Field

[0001] This utility model relates to the field of powder screening machine technology, specifically to a powder screening machine for 3D printing. Background Technology

[0002] 3D printing equipment is a type of mechanical equipment based on 3D printing technology. 3D printing is achieved using digital technology material printers. It is often used in mold making, industrial design and other fields to make models, and is gradually being used for the direct manufacturing of some products. 3D printing also includes some post-processing steps, including processing the powder collected after printing, which is mainly done by sieving powder using a powder sieving machine.

[0003] However, many powder screening machines nowadays have internal filters that are not easy to disassemble, making it difficult to clean the dust adhering to the filters, which can affect the screening operation of the powder screening machine.

[0004] In view of this, the present invention proposes a powder sieving machine for 3D printing. Utility Model Content

[0005] This utility model proposes a powder sieving machine for 3D printing, which solves the problem that many powder sieving machines currently in use have internal filters that are not easy to disassemble, making it difficult to clean the dust adhering to the filters, which will have a certain impact on the powder sieving operation of the powder sieving machine.

[0006] The technical solution of this utility model is as follows: A powder screening machine for 3D printing includes a base, a vibration spring fixedly connected to the top of the base, an ultrasonic vibration seat fixedly connected to the top of the vibration spring, a hopper fixedly connected to the top of the ultrasonic vibration seat, a limiting ring fixedly connected inside the hopper, a screen attached to the top of the limiting ring, a return spring fixedly connected to the outer wall of the hopper, a fixed plate slidably connected to the hopper at one end of the return spring, a guide plate fixedly connected inside the hopper below the limiting ring, and a discharge port fixedly connected to the hopper on the side of the guide plate.

[0007] Preferably, an adsorption ring is fixedly connected to the top of the hopper, an iron ring is adsorbed on the top of the adsorption ring, and a top cover is fixedly connected to the top of the iron ring.

[0008] Preferably, the screen is tightly fitted to the limiting ring, and the screen completely isolates the interior of the hopper.

[0009] Preferably, the fixing plate passes through the hopper and fits tightly against the hopper, and the fixing plate is fixed under the action of the return spring.

[0010] Preferably, the center of the guide plate and the screen are at the same point, and the guide plate is a frustum design.

[0011] Preferably, the discharge port is inclined and flush with the bottom of the guide plate.

[0012] Preferably, the top cover covers the top perimeter of the hopper, and the top diameter of the top cover is smaller than that of the bottom.

[0013] Preferably, the adsorption ring and the iron ring are tightly adsorbed together, and the top cover is fixed to the top of the hopper by the adsorption ring.

[0014] The working principle and beneficial effects of this utility model are as follows:

[0015] In this invention, by setting a fixing plate, when the screen needs to be cleaned, the top cover is removed, the fixing plate is pulled, and the fixing plate will slide along the hopper and finally detach from the screen. At this time, the screen can be removed from the limiting ring. By setting a return spring, the return spring will apply a pulling force to the fixing plate through its own elasticity, so that it fits against the top of the screen. At this time, the screen will be fixed under the action of the limiting ring and the fixing plate.

[0016] In this invention, a guide plate is provided. Since the perimeter of the guide plate is inclined, the powder will fall into the inside of the feed inlet along the inclined surface, thus realizing the feeding operation. By providing a top cover, the perimeter of the hopper can be blocked, effectively preventing the powder from being shaken out of the hopper during screening. The top cover is connected to the iron ring and the hopper through an adsorption ring. When the top cover needs to be removed, it is only necessary to use force to separate the adsorption ring and the iron ring. Attached Figure Description

[0017] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0019] Figure 2 This is a schematic diagram of the material outlet location structure of this utility model;

[0020] Figure 3 This is a schematic diagram of the adsorption ring structure of this utility model;

[0021] Figure 4 This is a schematic diagram of the guide plate position structure of this utility model.

[0022] In the diagram: 1. Base; 2. Vibration spring; 3. Ultrasonic vibration seat; 4. Hopper; 5. Limiting ring; 6. Screen; 7. Reset spring; 8. Fixing plate; 9. Guide plate; 10. Discharge port; 11. Adsorption ring; 12. Iron ring; 13. Top cover. Detailed Implementation

[0023] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this utility model. Example

[0024] A preferred embodiment of the powder sieving machine for 3D printing provided by this utility model is as follows: Figures 1 to 4 As shown: A powder sieving machine for 3D printing includes a base 1, a vibration spring 2 fixedly connected to the top of the base 1, an ultrasonic vibration seat 3 fixedly connected to the top of the vibration spring 2, a material bin 4 fixedly connected to the top of the ultrasonic vibration seat 3, a limiting ring 5 fixedly connected inside the material bin 4, a screen 6 attached to the top of the limiting ring 5, a return spring 7 fixedly connected to the outer wall of the material bin 4, a fixed plate 8 slidably connected to the material bin 4 fixedly connected to one end of the return spring 7, a guide plate 9 located below the limiting ring 5 fixedly connected inside the material bin 4, and a discharge port 10 fixedly connected to the material bin 4 on the side of the guide plate 9.

[0025] In this embodiment, the screen 6 is tightly fitted with the limiting ring 5, and the screen 6 completely isolates the interior of the hopper 4. The ultrasonic vibrating seat 3 is turned on, causing the hopper 4 to vibrate. At this time, the screen 6 will screen the powder inside the hopper 4, and the screened powder will fall onto the guide plate 9.

[0026] In this embodiment, the fixing plate 8 penetrates through the hopper 4 and is tightly fitted to the hopper 4. The fixing plate 8 is fixed under the action of the reset spring 7. By setting the reset spring 7, the reset spring 7 will apply a pulling force to the fixing plate 8 through its own elasticity, so that it is fitted to the top of the screen 6. At this time, the screen 6 will be fixed under the action of the limiting ring 5 and the fixing plate 8.

[0027] In this embodiment, the center of the guide plate 9 and the screen 6 are the same point. The guide plate 9 is a frustum design. Since the perimeter of the guide plate 9 is inclined, the powder will fall into the interior of the feed port 10 along the inclined surface to realize the feeding operation.

[0028] In this embodiment, the discharge port 10 is inclined and flush with the bottom of the guide plate 9, which allows the powder to be discharged from the discharge port 10 more effectively. Example

[0029] Based on Embodiment 1, a preferred embodiment of the powder sieving machine for 3D printing provided by this utility model is as follows: Figures 1 to 4As shown: The top of the hopper 4 is fixedly connected to an adsorption ring 11, the top of the adsorption ring 11 is adsorbed with an iron ring 12, and the top of the iron ring 12 is fixedly connected to a top cover 13.

[0030] In this embodiment, the top cover 13 covers the top and sides of the hopper 4. The top diameter of the top cover 13 is smaller than that of the bottom. By setting the top cover 13, the top cover 13 can cover the perimeter of the hopper 4, effectively preventing the powder from being shaken out of the hopper 4 during screening.

[0031] In this embodiment, the adsorption ring 11 and the iron ring 12 are tightly adsorbed together, and the upper cover 13 is fixed to the top of the hopper 4 through the adsorption ring 11. The upper cover 13 is connected to the iron ring 12 and the hopper 4 through the adsorption ring 11. When the upper cover 13 needs to be disassembled, it is only necessary to use force to separate the adsorption ring 11 and the iron ring 12.

[0032] The working principle and usage process of this utility model are as follows: First, the powder to be screened is placed into the hopper 4 through the upper cover 13. The powder will fall onto the screen 6. Then, the ultrasonic vibrating seat 3 is turned on to make the hopper 4 vibrate. At this time, the screen 6 will screen the powder inside the hopper 4. The screened powder will fall onto the guide plate 9. Since the guide plate 9 has a sloping perimeter, the powder will fall into the discharge port 10 along the sloping perimeter, realizing the discharge operation. By setting the upper cover 13, the upper cover 13 can block the perimeter of the hopper 4, effectively preventing the powder from being shaken out of the hopper 4 during screening. The upper cover 13 is connected to the hopper 4 through the adsorption ring 11, the iron ring 12 and the adsorption ring 12. When the upper cover 13 needs to be disassembled, it is only necessary to use force to separate the adsorption ring 11 and the iron ring 12.

[0033] When the screen 6 needs to be cleaned, after removing the top cover 13, pull the fixing plate 8. The fixing plate 8 will slide along the hopper 4 and finally detach from the screen 6. At this time, the screen 6 can be removed from the limiting ring 5. By setting the reset spring 7, the reset spring 7 will apply a pulling force to the fixing plate 8 through its own elasticity, so that it fits against the top of the screen 6. At this time, the screen 6 will be fixed under the action of the limiting ring 5 and the fixing plate 8.

[0034] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A powder sieving machine for 3D printing, comprising a base (1), characterized in that, A vibration spring (2) is fixedly connected to the top of the base (1), an ultrasonic vibration seat (3) is fixedly connected to the top of the vibration spring (2), a hopper (4) is fixedly connected to the top of the ultrasonic vibration seat (3), a limiting ring (5) is fixedly connected inside the hopper (4), a screen (6) is attached to the top of the limiting ring (5), a reset spring (7) is fixedly connected to the outer wall of the hopper (4), a fixing plate (8) is fixedly connected to one end of the reset spring (7) and slidably connected to the hopper (4), a guide plate (9) located below the limiting ring (5) is fixedly connected inside the hopper (4), and a discharge port (10) fixedly connected to the hopper (4) is provided on the side of the guide plate (9).

2. The powder sieving machine for 3D printing according to claim 1, characterized in that, An adsorption ring (11) is fixedly connected to the top of the hopper (4), and an iron ring (12) is adsorbed on the top of the adsorption ring (11). A top cover (13) is fixedly connected to the top of the iron ring (12).

3. A powder sieving machine for 3D printing according to claim 1, characterized in that, The mesh screen (6) fits tightly against the limiting ring (5), and the mesh screen (6) completely isolates the interior of the hopper (4).

4. A powder sieving machine for 3D printing according to claim 1, characterized in that, The fixing plate (8) passes through the hopper (4) and is tightly fitted to the hopper (4). The fixing plate (8) is fixed under the action of the return spring (7).

5. A powder sieving machine for 3D printing according to claim 1, characterized in that, The center of the guide plate (9) and the screen (6) is the same point, and the guide plate (9) is a frustum design.

6. A powder sieving machine for 3D printing according to claim 1, characterized in that, The discharge port (10) is inclined and is flush with the bottom of the guide plate (9).

7. A powder sieving machine for 3D printing according to claim 2, characterized in that, The top cover (13) covers the top of the hopper (4) around its perimeter, and the top diameter of the top cover (13) is smaller than that of the bottom.

8. A powder sieving machine for 3D printing according to claim 2, characterized in that, The adsorption ring (11) and the iron ring (12) are tightly adsorbed together, and the top cover (13) is fixed to the top of the hopper (4) by the adsorption ring (11).

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