Ultrasonic vibration screening device for spherical metal powder

Abstract

The utility model discloses an ultrasonic vibration screening device for spherical metal powder, which relates to the technical field of spherical powder sorting and comprises an annular base, a vibration seat is arranged above the base, a vibration motor and a transducer are mounted in the center of the bottom surface of the vibration seat, and the transducer is connected with an ultrasonic generator. After the first sieve tray, the second sieve tray and the dustproof cover are sequentially stacked above the vibration base, the limiting rod is rotated until the limiting rod is clamped in the first buckling groove, the second buckling groove and the third buckling groove, and then the lock catch assembly is buckled to achieve limiting of the limiting rod; the vibration seat, the first sieve tray, the second sieve tray and the dustproof cover are connected into a whole, so that a small gap for transverse jumping is formed, and the problems of jumping and mutual collision damage of the first sieve tray, the second sieve tray and the dustproof cover during vibration are further avoided; compared with the technical scheme that a plurality of spring pull buckles are locked one by one in the prior art, the operation mode is more convenient and faster.

Description

Technical Field

[0001] The utility model relates to the technical field of spherical powder sorting, and particularly relates to an ultrasonic vibration screening device for spherical metal powder. Background Art

[0002] As an important raw material for metal additive manufacturing, the properties of spherical metal powder have an important impact on the performance of additive manufacturing parts. The preparation of spherical metal powder, such as gas atomization method, plasma rotating electrode atomization method, plasma atomization method, etc., is difficult to control, resulting in powder particles with different particle sizes usually obtained during the preparation process. Therefore, screening according to particle size is required.

[0003] An ultrasonic vibrating screen is a technical means that inputs high-frequency electrical energy into an ultrasonic transducer to obtain mechanical vibration, thereby achieving efficient screening. The spherical metal powder receives ultrasonic acceleration, so as to maintain a suspended state on the screen surface to inhibit factors such as adhesion, friction, and flat drop that cause screen blockage.

[0004] Traditional ultrasonic vibrating screens usually have multiple layers of screen meshes for realizing step-by-step sorting based on particle size. Multiple spring latches arranged in a circular array are used for separable locking between adjacent screen meshes. However, in the production operation process, buckling the spring latches one by one is cumbersome, and the failure of any spring latch will cause a safety accident, having multiple out-of-control risk areas. Summary of the Invention

[0005] In order to overcome the problem of "when connecting adjacent screen meshes of a traditional ultrasonic vibrating screen with multiple spring latches arranged in a circular array, buckling the spring latches one by one in the production operation process is cumbersome" existing in the above background art, the utility model provides an ultrasonic vibration screening device for spherical metal powder.

[0006] The technical solution adopted by the utility model to solve the above technical problems is:

[0007] A spherical metal powder ultrasonic vibration screening device, comprising an annular base. Above the base is provided a vibration base. At the edge position of the bottom surface of the vibration base, there are several springs arranged in a circular array. The bottom ends of the springs are fixedly connected to the upper surface of the base; the springs are vertically arranged. At the center position of the bottom surface of the vibration base, a vibration motor and a transducer are installed. The transducer is connected to an ultrasonic generator. A first sieve plate is press-fitted in an installation cavity opened on the upper surface of the vibration base, and a second sieve plate is press-fitted on the upper surface of the first sieve plate; the first sieve plate includes a first frame body and a bottom plate installed at the bottom of the inner cavity of the first frame body; the second sieve plate includes a second frame body and a sieve mesh installed at the bottom of the inner cavity of the second frame body; there are multiple second sieve plates which are stacked longitudinally. A dust-proof cover is press-fitted on the upper surface of the topmost second sieve plate; at the top of the side wall of the first frame body, there is a first extension fin extending outwards, and the first extension fin is provided with a first buckling groove; at the top of the side wall of the second frame body, there is a second extension fin extending outwards, and the second extension fin is provided with a second buckling groove; at the edge position of the dust-proof cover, there is a third extension fin extending outwards, and the third extension fin is provided with a third buckling groove; at the top end of the side wall of the vibration base, there is a rotatable limiting rod, and the limiting rod is adapted to the first buckling groove, the second buckling groove and the third buckling groove; on the outer side wall of the second frame body of the topmost second sieve plate, there is a locking component capable of engaging the limiting rod.

[0008] As a further optimized scheme of the present utility model, the locking component includes a mounting block and a pressing arm capable of engaging the limiting rod from both sides. The mounting block is fixedly connected to the outer wall of the second frame body, and one end of the pressing arm is connected to one end of the mounting block through a first hinge.

[0009] As a further optimized scheme of the present utility model, a first buckling groove is provided on the side wall of the mounting block, and a second buckling groove is provided on the side wall of the pressing arm. The first buckling groove and the second buckling groove can be spliced into a cylindrical shape adapted to the limiting rod.

[0010] As a further optimized scheme of the present utility model, the pressing arm can rotate horizontally relative to the first hinge.

[0011] As a further optimized scheme of the present utility model, one end of the pressing arm away from the first hinge is connected to a locking arm through a second hinge, and the locking arm can rotate horizontally relative to the second hinge.

[0012] As a further optimized scheme of the present utility model, a locking block is fixedly installed on the side wall of the locking arm, and a locking hole adapted to the locking block is opened on the side wall of the mounting block.

[0013] As a further optimized solution of the utility model, the locking block is made of iron-containing metal material, and a magnetic attraction block is fixedly installed at the bottom of the locking hole.

[0014] As a further optimized solution of the utility model, a handle is installed at the center position of the upper surface of the dust cover; a first handle is installed on the outer side wall of the locking arm.

[0015] As a further optimized solution of the utility model, the bottom of the first sieve plate is adaptively clamped with the installation cavity opened on the upper surface of the vibration seat, and the bottom of the second sieve plate is adaptively clamped with the top of the side wall of the first sieve plate.

[0016] As a further optimized solution of the utility model, the first extension fin is in a ring-shaped plate structure; the second extension fin is in a ring-shaped plate structure; the third extension fin is in a ring-shaped plate structure.

[0017] In summary, the beneficial effects of the utility model are as follows:

[0018] The utility model has a simple structure and reliable functions. The limiting rod is adapted to the first buckling groove, the second buckling groove and the third buckling groove. After the user stacks the first sieve plate, the second sieve plate and the dust cover above the vibration seat in sequence, the limiting rod is rotated until it is buckled in the first buckling groove, the second buckling groove and the third buckling groove, and then the locking component is buckled to limit the limiting rod, so that the vibration seat, the first sieve plate, the second sieve plate and the dust cover are connected into a whole, thus having a small gap for lateral jumping, further avoiding the bouncing problem of the first sieve plate, the second sieve plate and the dust cover during vibration and the problem of mutual collision and damage. Compared with the technical scheme of locking multiple spring latches one by one in the traditional technology, it has a more convenient and fast operation form. Description of the Drawings

[0019] The following further illustrates the present application with reference to the drawings:

[0020] Figure 1 is the overall structural schematic diagram of the utility model;

[0021] Figure 2 is the structural schematic diagram of the first sieve plate;

[0022] Figure 3 is the structural schematic diagram of the second sieve plate;

[0023] Figure 4 is the installation position and structural schematic diagram of the limiting rod;

[0024] Figure 5 is the cross-sectional top view structural schematic diagram of the locking component;

[0025] Figure 6 is the top view schematic diagram of the installation position of the locking component.

[0026] Description of the reference numerals:

[0027] In the figure,

[0028] 1. Base; 11. Installation cavity;

[0029] 2. Vibration seat; 21. Spring; 22. Limit rod; 23. Axle seat;

[0030] 3. First sieve plate; 31. First frame; 32. Bottom plate; 33. First extension fin; 34. First snap groove;

[0031] 4. Second sieve plate; 41. Second frame; 42. Sieve mesh; 43. Second extension fin; 44. Second snap groove;

[0032] 5. Dust cover; 51. Handle; 52. Third extension fin; 53. Third snap groove;

[0033] 6. Vibration motor;

[0034] 7. Transducer;

[0035] 8. Ultrasonic generator;

[0036] 9. Locking component; 91. Mounting block; 911. Locking hole; 912. Magnetic block; 92. Pressing arm; 93. Locking arm; 931. Locking block; 932. First handle. Detailed implementation manners

[0037] According to the above structural features of the present application, the implementation manners of the present application will be further described:

[0038] Referring to Figures 1 to 6 , this embodiment provides a spherical metal powder ultrasonic vibration screening device, including an annular base 1. Above the base 1, there is a vibration seat 2. At the edge position of the bottom surface of the vibration seat 2, there are a number of springs 21 arranged in a circular array. The bottom ends of the springs 21 are fixedly connected to the upper surface of the base 1. When in use, the base 1 is placed on the workbench in the processing workshop or fixedly installed on the workbench with bolts. Then, when the vibration seat 2 vibrates, it will not cause the displacement of the present utility model, thereby improving the stability and avoiding unexpected collision accidents.

[0039] Referring to Figure 1 , the springs 21 are vertically arranged. Then, a gap is formed between the lower surface of the vibration seat 2 and the upper surface of the base 1. This gap is used to provide a space for the vibration of the vibration seat 2 to avoid impact damage between the vibration seat 2 and the base 1.

[0040] Referring to Figure 1, a vibration motor 6 and a transducer 7 are installed at the center of the bottom surface of the vibration base 2 through bolts, and the transducer 7 is connected to an ultrasonic generator 8; the transducer 7 penetrates through a through hole in the side wall of the base 1, and one end of the transducer 7 outside the base 1 is connected to the ultrasonic generator 8, and the ultrasonic generator 8 is placed on the workbench in the processing workshop or fixedly installed on the workbench by bolts. The end of the transducer 7 and the vibration motor 6 are placed inside the cavity of the base 1, and the cavity of the base 1 is used to provide a vibration space for the end of the transducer 7 and the vibration motor 6.

[0041] Referring to Figure 1 , a first sieve plate 3 is press-fitted in an installation cavity 11 opened on the upper surface of the vibration base 2, and a second sieve plate 4 is press-fitted on the upper surface of the first sieve plate 3.

[0042] Referring to Figures 1 to 3 , the first sieve plate 3 includes a first frame body 31 and a bottom plate 32 fixedly installed at the bottom of the inner cavity of the first frame body 31 (for example, through integral fixed connection); the second sieve plate 4 includes a second frame body 41 and a sieve mesh 42 installed at the bottom of the inner cavity of the second frame body 41 (for example, through bolts and compression rings for fixed connection); there are multiple second sieve plates 4 and they are longitudinally stacked, and the sieve meshes 42 installed in each second sieve plate 4 have different mesh numbers, which are used to realize the step-by-step screening of spherical metal powder. A dust-proof cover 5 is press-fitted on the upper surface of the topmost second sieve plate 4 to prevent spherical metal powder from popping out.

[0043] Referring to Figure 4 , the top of the side wall of the first frame body 31 is provided with a first extending fin 33 extending outwards (for example, through integral fixed connection), and the first extending fin 33 is provided with a first buckling groove 34; the top of the side wall of the second frame body 41 is provided with a second extending fin 43 extending outwards (for example, through integral fixed connection), and the second extending fin 43 is provided with a second buckling groove 44; the edge position of the dust-proof cover 5 is provided with a third extending fin 52 extending outwards (for example, through integral fixed connection), and the third extending fin 52 is provided with a third buckling groove 53; the first buckling groove 34, the second buckling groove 44 and the third buckling groove 53 are all V-shaped groove structures.

[0044] Referring to Figure 4, at the top of the side wall of the vibration base 2, there is a rotatable limiting rod 22. The bottom end of the limiting rod 22 is connected to the vibration base 2 through a shaft seat 23 provided with a hinge shaft. The limiting rod 22 is adapted to the first buckling groove 34, the second buckling groove 44, and the third buckling groove 53. On the outer side wall of the second frame body 41 of the topmost second sieve tray 4, there is a locking component 9 capable of engaging with the limiting rod 22. During use, stack the first sieve tray 3, the second sieve tray 4, and the dust cover 5 in sequence above the vibration base 2, then rotate the limiting rod 22 until the limiting rod 22 is clamped in the first buckling groove 34, the second buckling groove 44, and the third buckling groove 53, and then fasten the locking component 9 to limit the limiting rod 22, so as to avoid the jumping problem of the first sieve tray 3, the second sieve tray 4, and the dust cover 5 during vibration.

[0045] Refer to Figure 4 and Figure 5 , the locking component 9 includes a mounting block 91 and a pressing arm 92 capable of engaging with the limiting rod 22 from both sides. The mounting block 91 is fixedly connected to the outer wall of the second frame body 41 (for example, fixedly connected by bolts), and one end of the pressing arm 92 is connected to one end of the mounting block 91 through a first hinge.

[0046] Refer to Figure 5 , on the side wall of the mounting block 91, there is a first buckling groove, and on the side wall of the pressing arm 92, there is a second buckling groove. The first buckling groove and the second buckling groove can be spliced into a cylindrical shape adapted to the limiting rod 22. An arc-shaped rubber clamping layer is fixedly installed in the first buckling groove and / or the second buckling groove through bolts.

[0047] Refer to Figure 5 , the pressing arm 92 can rotate horizontally relative to the first hinge. One end of the pressing arm 92 far from the first hinge is connected to a locking arm 93 through a second hinge, and the locking arm 93 can rotate horizontally relative to the second hinge. A locking block 931 (for example, fixedly connected by bolts) is fixedly installed on the side wall of the locking arm 93, and a locking hole 911 adapted to the locking block 931 is provided on the side wall of the mounting block 91. The locking block 931 is made of iron-containing metal material (such as 45# steel), and a magnetic attracting block 912 is fixedly installed at the bottom of the locking hole 911. The magnetic attracting block 912 is made of permanent magnetic material (such as aluminum-nickel-cobalt series permanent magnetic alloy, iron-chromium-cobalt series permanent magnetic alloy, permanent ferrite, etc.).

[0048] At the center position of the upper surface of the dust cover 5, a handle 51 is installed (for example, fixedly connected by bolts) to facilitate the user to lift the dust cover 5; a first handle 932 is installed on the outer side wall of the locking arm 93 (for example, fixedly connected by bolts) to facilitate the user to rotate the locking arm 93 and the pressing arm 92; a second handle is installed on the outer side wall of the first frame body 31 (for example, fixedly connected by bolts) to facilitate the user to place / remove the first sieve tray 3; a third handle is installed on the outer side wall of the second frame body 41 (for example, fixedly connected by bolts) to facilitate the user to place / remove the second sieve tray 4.

[0049] Reference Figure 1 and Figure 4 The bottom of the first sieve plate 3 is adapted to be engaged with the mounting cavity 11 opened on the upper surface of the vibration seat 2, and the bottom of the second sieve plate 4 is adapted to be engaged with the top of the side wall of the first sieve plate 3. The first extended fin 33 is an annular plate structure; the second extended fin 43 is an annular plate structure; and the third extended fin 52 is an annular plate structure.

[0050] Reference Figure 6 There are at least two limit rods 22 and they are arranged in a circular array with equal angles and equal radius along the outer circumference of the second frame 41. The number of locking components 9 is adapted to the number of limit rods 22 and they are installed respectively.

[0051] The utility model also includes an electrical cabinet, which is fixedly mounted on the surface of the workbench by bolts; the vibration motor 6, the transducer 7 and the ultrasonic generator 8 are respectively connected to the electrical cabinet through wires and signal lines; the electrical cabinet is respectively connected to an external power supply and an external computer through wires and signal lines, and the computer controls the start and stop of the vibration motor 6, the transducer 7 and the ultrasonic generator 8 in the utility model through the electrical cabinet.

[0052] The utility model has a simple structure and reliable function. The limiting rod 22 is adapted to the first buckling groove 34, the second buckling groove 44 and the third buckling groove 53. The user stacks the first sieve plate 3, the second sieve plate 4 and the dust cover 5 in sequence above the vibration seat 2, and then rotates the limiting rod 22 until the limiting rod 22 is clamped in the first buckling groove 34, the second buckling groove 44 and the third buckling groove 53, and then buckles the lock assembly 9 to achieve the limiting of the limiting rod 22, so that the vibration seat 2, the first sieve plate 3, the second sieve plate 4 and the dust cover 5 are connected into a whole so as to have a smaller gap for lateral jumping, further avoiding the bouncing problem of the first sieve plate 3, the second sieve plate 4 and the dust cover 5 during vibration and the problem of mutual collision and damage, and has a more convenient and quicker operation form than the technical solution of multiple spring 21 buckles locked one by one in the traditional technology.

[0053] In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "up", "down", "left" and "right" are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0054] In the description of the present utility model, it should also be noted that unless otherwise clearly specified and limited, the terms "arranged", "installed", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or a connection through an intermediate medium; and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0055] In summary, for those skilled in the art, based on the guidance of the present utility model, without departing from the principle and spirit of the present utility model, the changes, modifications, substitutions, and deformations made to the present utility model still fall within the protection scope of the present utility model.

Claims

1. An ultrasonic vibration screening device for spherical metal powder, characterized in that: It includes an annular base (1), above which there is a vibration base (2). At the edge position of the bottom surface of the vibration base (2), there are a number of springs (21) arranged in a circular array, and the bottom ends of the springs (21) are fixedly connected to the upper surface of the base (1); The springs (21) are vertically arranged; At the center position of the bottom surface of the vibration base (2), a vibration motor (6) and a transducer (7) are installed, and the transducer (7) is connected to an ultrasonic generator (8); A first sieve plate (3) is press-fitted in an installation cavity (11) opened on the upper surface of the vibration base (2), and a second sieve plate (4) is press-fitted on the upper surface of the first sieve plate (3); The first sieve plate (3) includes a first frame body (31) and a bottom plate (32) installed at the bottom of the inner cavity of the first frame body (31); the second sieve plate (4) includes a second frame body (41) and a sieve mesh (42) installed at the bottom of the inner cavity of the second frame body (41); there are multiple second sieve plates (4) which are longitudinally stacked, and a dust-proof cover (5) is press-fitted on the upper surface of the topmost second sieve plate (4); At the top of the side wall of the first frame body (31), there is a first extension fin (33) extending outwards, and the first extension fin (33) is provided with a first buckling groove (34); at the top of the side wall of the second frame body (41), there is a second extension fin (43) extending outwards, and the second extension fin (43) is provided with a second buckling groove (44); at the edge position of the dust-proof cover (5), there is a third extension fin (52) extending outwards, and the third extension fin (52) is provided with a third buckling groove (53); At the top end of the side wall of the vibration base (2), there is a rotatable limiting rod (22), and the limiting rod (22) is adapted to the first buckling groove (34), the second buckling groove (44) and the third buckling groove (53); on the outer side wall of the second frame body (41) of the topmost second sieve plate (4), there is a locking component (9) capable of engaging with the limiting rod (22).

2. The spherical metal powder ultrasonic vibration screening device according to claim 1, characterized in that: The locking component (9) includes a mounting block (91) and a pressing arm (92) capable of engaging with the limiting rod (22) from both sides. The mounting block (91) is fixedly connected to the outer wall of the second frame body (41), and one end of the pressing arm (92) is connected to one end of the mounting block (91) through a first hinge.

3. The spherical metal powder ultrasonic vibration screening device according to claim 2, characterized in that: The side wall of the mounting block (91) is provided with a first buckling groove, and the side wall of the pressing arm (92) is provided with a second buckling groove. The first buckling groove and the second buckling groove can be spliced into a cylindrical shape adapted to the limiting rod (22).

4. The spherical metal powder ultrasonic vibration screening device according to claim 3, wherein: The pressing arm (92) can rotate horizontally relative to the first hinge.

5. The spherical metal powder ultrasonic vibration screening device according to claim 4, wherein: One end of the pressing arm (92) far from the first hinge is connected to a locking arm (93) through a second hinge, and the locking arm (93) can rotate horizontally relative to the second hinge.

6. The spherical metal powder ultrasonic vibration screening device according to claim 5, characterized in that: A locking block (931) is fixedly installed on the side wall of the locking arm (93), and a locking hole (911) adapted to the locking block (931) is opened on the side wall of the mounting block (91).

7. The spherical metal powder ultrasonic vibration screening device according to claim 6, wherein: The locking block (931) is made of iron-containing metal material, and a magnetic attraction block (912) is fixedly installed at the bottom of the locking hole (911).

8. The spherical metal powder ultrasonic vibration screening device according to claim 7, wherein: A handle (51) is installed at the center of the upper surface of the dust cover (5); a first handle (932) is installed on the outer side wall of the locking arm (93).

9. The spherical metal powder ultrasonic vibration screening device according to claim 8, characterized in that: The bottom of the first sieve tray (3) is adaptively clamped with the installation cavity (11) formed on the upper surface of the vibration seat (2), and the bottom of the second sieve tray (4) is adaptively clamped with the top of the side wall of the first sieve tray (3).

10. The spherical metal powder ultrasonic vibration screening device according to claim 9, wherein: The first extension fin (33) is in a ring-shaped plate structure; the second extension fin (43) is in a ring-shaped plate structure; the third extension fin (52) is in a ring-shaped plate structure.

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