Screen separation type sealed ultrasonic linear vibration screen

Abstract

The utility model discloses a screen separation type sealed ultrasonic wave linear vibration screen belongs to metal powder screening field, and it is including: screen box (1) is used for the metal powder of the screen bone and screen cloth (4) screening after the butt joint, screen box cover plate (6) is spaced apart with screen bone and screen cloth (4) setting, intermediate gasket (5) is fixedly connected with screen box (1) below, and is fixedly connected with screen box cover plate (6) above, and the connecting place is sealed and handles, structure fixing device (3) includes at least one height adjusting structure, ultrasonic transducer (7) provides longitudinal vibration for screen bone and screen cloth (4), metal powder import (8) sets up at screen box cover plate (6) top, big granule metal powder leak (2) sets up below screen bone and screen cloth (4). The utility model screen bone and screen cloth can vibrate freely in the intermediate gasket pad height space, and adds the sealing ring on the intermediate gasket, improves the sealing effect, and at the same time does not influence the vibration effect of screen bone and screen cloth.

Description

Technical Field

[0001] This utility model relates to a screen separation type sealed ultrasonic linear vibrating screen, belonging to the field of metal powder screening. Background Technology

[0002] In the field of metal 3D printing, ultrasonic linear vibrating screens commonly used for metal powder sieving typically consist of a screen box, screen frame, and screen cover, which are sequentially stacked and fixed using U-shaped clamps or snap clips. However, because the vibration frequency of the screen frame is sensitive to its fixing method, this fixing method has the following problems: under the high-frequency vibration of ultrasound, the U-shaped clamps or snap clips may loosen, leading to powder leakage. On the other hand, overly tight fixing will affect the vibration of the screen frame under ultrasound, limiting the propagation of ultrasonic vibration. If a sealing ring is placed around the screen frame, although it can prevent powder leakage, it will dissipate the ultrasonic vibration energy prematurely, reducing the metal powder sieving efficiency. Utility Model Content

[0003] To address the problems existing in the prior art, this utility model proposes a screen separation type sealed ultrasonic linear vibrating screen. By raising the space for placing the screen bones with an intermediate pad, and at the same time moving the sealing ring to the upper and lower surfaces of the intermediate pad, the sealing of the metal powder can be guaranteed, and the ultrasonic vibration can be prevented from being affected.

[0004] The technical solution of this utility model is as follows: This utility model provides a screen separation type sealed ultrasonic linear vibrating screen, including: A sieve box is used to receive metal powder after screening by sieve bones and sieve mesh. A sieve box cover plate, wherein the sieve box cover plate is spaced apart from the sieve frame and the sieve mesh; An intermediate pad is fixedly connected to the screen box at the bottom and to the screen box cover plate at the top, with the connection point sealed. A structural fixing device for supporting the sieve box includes at least one height adjustment structure, which is used to adjust the metal powder inlet to be higher than the large particle metal powder outlet. An ultrasonic transducer is disposed on one side of the sieve bone and sieve mesh to provide longitudinal vibration to the sieve bone and sieve mesh. Metal powder inlet, which is located on the top of the sieve box cover plate near the ultrasonic transducer, and the metal powder to be screened is added from the metal powder inlet; The large-particle metal powder outlet is located below the sieve frame and sieve mesh, and on the side away from the ultrasonic transducer.

[0005] Furthermore, the sieve bones and sieve mesh are spaced apart from the intermediate pad and the sieve box cover.

[0006] Furthermore, the sealing process specifically involves installing sealing rings on both the upper and lower surfaces of the intermediate pad.

[0007] Furthermore, the sieve box cover is provided with a dust removal port, which is connected to a dust removal device to recover the dust generated during the metal powder sieving process.

[0008] Furthermore, the structure fixing device is connected to the ground, a fixed platform, or a metal 3D printing device at its lower part, and a shock-absorbing structure is provided at the connection point.

[0009] This utility model of a screen separation type sealed ultrasonic linear vibrating screen has the following beneficial effects: by using an intermediate pad to raise the space for placing the screen frame and screen, the screen frame and screen can vibrate freely in the raised space. Sealing rings are added to the top and bottom of the intermediate pad and fixed to the screen box cover and screen box. This not only effectively improves the sealing effect of the entire vibrating screen, but also does not affect the vibration effect of the screen frame and screen. Attached Figure Description

[0010] Figure 1 A schematic diagram of a screen separation type sealed ultrasonic linear vibrating screen; Figure 2 Right view of a screen separation type sealed ultrasonic linear vibrating screen; Figure 3 This is a schematic diagram of the intermediate pad. Figure 4 A top view of a screen-separation type sealed ultrasonic linear vibrating screen; The reference numerals in the figure indicate: 1. Screen box; 2. Large particle metal powder outlet; 3. Structural fixing device; 4. Screen frame and screen mesh; 5. Intermediate pad; 6. Screen box cover plate; 7. Ultrasonic transducer; 8. Metal powder inlet. Detailed Implementation

[0011] The technical solutions in the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the protection scope of this utility model.

[0012] In the description of this specification, it should be understood that the terms "above", "bottom", "left", "right", etc., which indicate orientation or positional relationship based on the orientation or positional relationship shown in the drawings, are only for the convenience of describing the technical solution of this patent and simplifying the description, and do not imply or suggest that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this patent application.

[0013] Example 1: like Figure 1 and Figure 2 As shown, a screen-separated sealed ultrasonic linear vibrating screen includes a screen box 1, a large-particle metal powder outlet 2, a structural fixing device 3, screen frame and screen mesh 4, an intermediate pad 5, a screen box cover 6, an ultrasonic transducer 7, and a metal powder inlet 8; wherein the screen frame is the screen mesh frame. The sieve box 1 is used to receive the metal powder after screening by the sieve frame and sieve mesh 4. The sieve box cover 6 is spaced apart from the sieve frame and sieve mesh 4; The middle pad 5 is fixedly connected to the screen box 1 at the bottom and to the screen box cover 6 at the top, and the connection is sealed. The structural fixing device 3 is used to support the sieve box 1, including at least one height adjustment structure. The height adjustment structure is used to adjust the metal powder inlet 8 to be higher than the large particle metal powder outlet 2. The inclined structure reduces the retention of metal powder on the sieve bones and sieve screen 4, and avoids clogging of the sieve bones and sieve screen 4. An ultrasonic transducer 7 is disposed on one side of the sieve bone and sieve screen 4 to provide longitudinal vibration to the sieve bone and sieve screen 4. The metal powder inlet 8 is located on the top of the sieve box cover plate 6 near the ultrasonic transducer 7, and the metal powder to be screened is added from the metal powder inlet 8. The large-particle metal powder outlet 2 is located below the sieve frame and sieve 4, and on the side away from the ultrasonic transducer 7.

[0014] Preferably, there are gaps between the sieve frame and sieve mesh 4 and the intermediate pad plate 5 and the sieve box cover plate 6 (e.g. Figure 4 As shown in the figure, the ultrasonic vibration energy is transmitted to the sieve frame and sieve screen 4 through the ultrasonic transducer 7. Since there are gaps around the sieve frame and sieve screen 4, there is no vibration restriction, the vibration energy loss is small, and the material can be screened more effectively.

[0015] Preferably, the sealing process specifically involves installing sealing rings on both the upper and lower surfaces of the intermediate pad. The sealing rings ensure that the screen separation type sealed ultrasonic linear vibrating screen is not affected by ultrasonic vibration during operation, thus guaranteeing a seal and preventing metal powder leakage. The sealing ring is not related to the sieve bone and sieve mesh 4, and will not affect the dissipation of ultrasonic vibration energy.

[0016] Preferably, the sieve box cover 6 is provided with a dust removal port, which is connected to a dust removal device to recover the dust generated during the metal powder sieving process.

[0017] Preferably, the structure fixing device 3 is connected to the ground, a fixed platform, or a metal 3D printing device at the bottom, and a shock-absorbing structure is provided at the connection point.

[0018] Example 2 The specific working process of the screen separation type sealed ultrasonic linear vibrating screen is as follows: By adjusting the structural fixing device 3, the ultrasonic linear vibrating screen is made to present an inclined posture with the left side higher than the right side, that is, the metal powder inlet 8 is higher than the large particle metal powder outlet 2. Metal powder is fed into metal powder inlet 8. The metal powder passes through the ultrasonically vibrating sieve bone and sieve screen 4, causing the metal powder to generate high-frequency motion perpendicular to the surface of the sieve bone and sieve screen 4. Small metal powder particles pass through the sieve frame and sieve 4 and enter the sieve box 1 for collection. Large metal powder particles move towards the large metal powder outlet 2 under the action of their own gravity and ultrasonic vibration, thus completing the sieving of metal powder.

[0019] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A screen-separation type sealed ultrasonic linear vibrating screen, characterized in that, include: The sieve box (1) is used to receive the metal powder after screening by the sieve frame and sieve mesh (4); The sieve box cover plate (6) is spaced apart from the sieve frame and the sieve mesh (4); The intermediate pad (5) is fixedly connected to the screen box (1) at the bottom and to the screen box cover plate (6) at the top, and the connection is sealed. The structural fixing device (3) is used to support the sieve box (1) and includes at least one height adjustment structure, which is used to adjust the metal powder inlet (8) to be higher than the large particle metal powder outlet (2). An ultrasonic transducer (7) is disposed on one side of the sieve bone and sieve mesh (4) to provide longitudinal vibration to the sieve bone and sieve mesh (4); Metal powder inlet (8) is located on the top of the sieve box cover plate (6) near the ultrasonic transducer (7), and the metal powder to be screened is added from the metal powder inlet (8). The large-particle metal powder outlet (2) is located below the sieve bone and sieve mesh (4) and on the side away from the ultrasonic transducer (7).

2. The screen separation type sealed ultrasonic linear vibrating screen according to claim 1, characterized in that, The sieve bone and sieve mesh (4) are spaced apart from the intermediate pad (5) and the sieve box cover (6).

3. The screen separation type sealed ultrasonic linear vibrating screen according to claim 1, characterized in that, The sealing process specifically involves installing sealing rings on both the upper and lower surfaces of the intermediate pad (5).

4. A screen-separation type sealed ultrasonic linear vibrating screen according to claim 1, characterized in that, The sieve box cover (6) is provided with a dust removal port, which is connected to a dust removal device to recover the dust generated during the metal powder screening process.

5. A screen-separation type sealed ultrasonic linear vibrating screen according to claim 1, characterized in that, The structure fixing device (3) is connected to the ground, a fixed platform or a metal 3D printing equipment below, and a shock-absorbing structure is set at the connection.

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