Metal powder size grading device

Abstract

The utility model discloses a metal powder size grading device, which relates to the technical field of grading devices, and comprises a base and an ultrasonic device arranged on the side wall of the base, and further comprises a blanking mechanism arranged on the inner wall of the base; the discharging mechanism comprises a material shell installed on the inner wall of the base, a crushing unit arranged in the material shell and a screening unit arranged at the bottom of the crushing unit. The grading mechanism is arranged at the bottom of the base; the grading mechanism comprises a discharging opening formed in the bottom of the base and a grading net arranged in the discharging opening, and a transition unit is arranged on the side portion of the discharging opening. According to the metal powder size grading device, through the discharging mechanism and the grading mechanism, hardening of metal powder is avoided, follow-up processing is facilitated, the metal powder with the corresponding particle size can be collected respectively, and therefore the effect of size grading is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of classification devices, in particular to a metal powder particle size classification device. Background Art

[0002] Powder metallurgy is a process technology that uses metal powder as raw material, forms and sinters it, and then manufactures metal materials, composite materials and various types of products. In the production process of powder metallurgy, it is particularly important to screen the metal powder. Generally, ultrasonic rotary vibrating screens are used to screen the metal powder.

[0003] During the stacking process, metal powder can easily absorb moisture in the air, which will cause compaction to a certain extent. The compacted metal powder will have a certain impact on the subsequent process. In order to improve the quality of the product, the compacted metal powder needs to be graded in advance for subsequent processing. For this purpose, we propose a metal powder particle size grading device. Utility Model Content

[0004] The main purpose of the utility model is to provide a metal powder particle size grading device, which solves the problem that metal powder easily absorbs moisture in the air during stacking, thereby causing compaction to a certain extent, and the compacted metal powder will have a certain impact on the subsequent process. In order to improve the quality of the product, the compacted metal powder needs to be graded in advance for subsequent processing.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A metal powder particle size classification device comprises a base and an ultrasonic device arranged on a side wall of the base, and further comprises:

[0007] A material discharge mechanism, wherein the material discharge mechanism is arranged on the inner wall of the base;

[0008] The material unloading mechanism comprises a material shell installed on the inner wall of the base, a crushing unit arranged inside the material shell, and a screening unit arranged at the bottom of the crushing unit;

[0009] A grading mechanism, the grading mechanism is arranged at the bottom of the base;

[0010] The grading mechanism comprises a discharge port arranged at the bottom of the base, a grading net arranged inside the discharge port, and a transition unit is arranged at the side of the discharge port.

[0011] Preferably, the ultrasonic device comprises an ultrasonic generator installed on the side wall of the base, an ultrasonic transducer arranged on the side of the ultrasonic generator, and an ultrasonic head arranged on the side of the ultrasonic transducer.

[0012] Preferably, a slide plate is provided on the top of the base, and a handle is installed on the outer surface of the slide plate.

[0013] Preferably, a feed port is provided at the top of the shell, and a feed pipe is fixedly provided inside the feed port;

[0014] The crushing unit includes a crushing roller relatively arranged inside the material shell, a driving gear arranged at the end of one of the crushing rollers, and a driven gear meshed with the side of the driving gear. A driving member is also arranged on one side of the driving gear, and the driven gear is installed at the end of the other crushing roller.

[0015] Preferably, the screening unit comprises a discharge port arranged at the bottom of the material shell, a screen installed at the discharge port, and a vibrator installed at the bottom of the screen.

[0016] Preferably, a plurality of discharge ports are equidistantly arranged at the bottom of the base, a transition unit is provided between two adjacent discharge ports, and the mesh sizes of the grading nets installed inside the plurality of discharge ports gradually increase.

[0017] Preferably, the transition unit includes a groove arranged at the bottom of the base and a filter screen arranged on the top wall of the groove, a fixing plate is fixedly arranged inside the groove, a through opening is relatively opened on the top surface of the fixing plate, the through opening is connected to the adjacent discharge port through a conduit, and a first filter plate and a second filter plate are respectively installed inside the two through openings, a rotating part is arranged at the bottom of the groove, a cross bar is relatively installed on the output shaft surface of the rotating part, and a cleaning brush is fixedly connected to the bottom of the cross bar.

[0018] Compared with the prior art, the utility model has the following beneficial effects:

[0019] 1. In the utility model, the feeding mechanism is set up, and the output shaft of the driving member drives one of the crushing rollers to rotate, and the driving gear and the driven gear are used to make the other crushing roller rotate relatively, so as to crush the metal powder to prevent the metal powder from being compacted. The crushed metal powder falls on the top of the screen, and then the vibrator works to make the screen vibrate, so that the metal powder and the mesh of the screen fall downward to the bottom of the base, which is convenient for subsequent processing;

[0020] 2. In the utility model, through the grading mechanism, the same ultrasonic frequency can make metal powders of different particle sizes vibrate with different amplitudes. Through the guidance of multi-directional ultrasonic waves, metal powders of different particle sizes move different distances at the same time, so that the metal powders fall down along the mesh of the grading net step by step. Under the action of the transition unit, the metal powders fall down along the mesh of the filter screen, and then the output shaft of the rotating part drives the cross bar to rotate, thereby driving the cleaning brush to make the metal powder fall down from the mesh of the first filter plate and the second filter plate, and enter the corresponding discharge port along the conduit, so that the metal powders of corresponding particle sizes are collected according to the different distances, so as to achieve the effect of particle size grading. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the utility model;

[0022] Figure 2 It is a top view of the utility model;

[0023] Figure 3 For this utility model Figure 2 The enlarged structural diagram at A in the middle;

[0024] Figure 4 For this utility model Figure 2 Schematic diagram of the cross-section structure at BB in the middle;

[0025] Figure 5 For this utility model Figure 4 The enlarged structural diagram at C in the middle;

[0026] Figure 6 For this utility model Figure 4 Enlarged structural diagram at D in the middle.

[0027] In the figure:

[0028] Base; 11. skateboard;

[0029] Ultrasonic device; 21. Ultrasonic generator; 22. Ultrasonic transducer; 23. Ultrasonic head;

[0030] Feeding mechanism; 31, feed shell; 32, crushing unit; 321, crushing roller; 322, driving gear; 323, driven gear; 324, driving member; 33, screening unit; 331, screen; 332, vibrator;

[0031] Grading mechanism; 41, discharge port; 42, grading net; 43, transition unit; 431, filter net; 432, fixed plate; 433, first filter plate; 434, second filter plate; 435, rotating part; 436, cross bar; 437, cleaning brush. DETAILED DESCRIPTION

[0032] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0033] Embodiment 1: Figure 1-6 As shown, a metal powder particle size classification device includes a base 1 and an ultrasonic device 2 arranged on the side wall of the base 1, and also includes:

[0034] A material discharge mechanism 3, which is arranged on the inner wall of the base 1;

[0035] The material discharge mechanism 3 includes a material shell 31 installed on the inner wall of the base 1, a crushing unit 32 arranged inside the material shell 31, and a screening unit 33 arranged at the bottom of the crushing unit 32;

[0036] The grading mechanism 4 is arranged at the bottom of the base 1;

[0037] The grading mechanism 4 includes a discharge port 41 disposed at the bottom of the base 1 , a grading net 42 disposed inside the discharge port 41 , and a transition unit 43 disposed at the side of the discharge port 41 .

[0038] The ultrasonic device 2 includes an ultrasonic generator 21 installed on the side wall of the base 1, an ultrasonic transducer 22 arranged on the side of the ultrasonic generator 21, and an ultrasonic head 23 arranged on the side of the ultrasonic transducer 22. The ultrasonic generator 21 is a variable frequency multi-directional ultrasonic generator for outputting high-frequency signals; the ultrasonic transducer 22 is used to convert high-frequency signals into ultrasonic signals for transmission, wherein the ultrasonic head 23 is installed on the outer surface of the ultrasonic transducer 22, and the ultrasonic head 23 is a hollow stainless steel round tube.

[0039] A slide plate 11 is arranged on the top of the base 1 , a handle is installed on the outer surface of the slide plate 11 , and the slide plate 11 is slidably connected to the top of the base 1 .

[0040] A feed port is provided at the top of the material shell 31, and a feed pipe is fixedly provided inside the feed port;

[0041] The crushing unit 32 includes a crushing roller 321 arranged relatively to the inside of the material shell 31, a driving gear 322 arranged at the end of one of the crushing rollers 321, and a driven gear 323 meshed with the side of the driving gear 322. A driving member 324 is also arranged on one side of the driving gear 322, and the driven gear 323 is installed at the end of the other crushing roller 321. Preferably, the driving member 324 is a servo motor.

[0042] The screening unit 33 includes a discharge port disposed at the bottom of the material shell 31 , a screen 331 installed at the discharge port, and a vibrator 332 installed at the bottom of the screen 331 .

[0043] When in use, first pull the handle to drive the slide plate 11 to move, pour the metal powder to be graded into the feed pipe of the material shell 31, and drive one of the crushing rollers 321 to rotate through the output shaft of the driving member 324, and cooperate with the driving gear 322 and the driven gear 323 to make the other crushing roller 321 rotate relatively, so as to crush the metal powder to prevent the metal powder from being compacted. The crushed metal powder falls on the top of the screen 331, and the screen 331 is vibrated by the vibrator 332, so that the metal powder and the mesh of the screen 331 fall downward to the bottom of the base 1.

[0044] Embodiment 2: Figure 1-6 As shown, a metal powder particle size classification device includes a base 1 and an ultrasonic device 2 arranged on the side wall of the base 1, and also includes:

[0045] A material discharge mechanism 3, which is arranged on the inner wall of the base 1;

[0046] The material discharge mechanism 3 includes a material shell 31 installed on the inner wall of the base 1, a crushing unit 32 arranged inside the material shell 31, and a screening unit 33 arranged at the bottom of the crushing unit 32;

[0047] The grading mechanism 4 is arranged at the bottom of the base 1;

[0048] The grading mechanism 4 includes a discharge port 41 disposed at the bottom of the base 1 , a grading net 42 disposed inside the discharge port 41 , and a transition unit 43 disposed at the side of the discharge port 41 .

[0049] A plurality of discharge ports 41 are equidistantly arranged at the bottom of the base 1 , a transition unit 43 is arranged between two adjacent discharge ports 41 , and the mesh sizes of the grading nets 42 installed inside the plurality of discharge ports 41 gradually increase.

[0050] The transition unit 43 includes a groove arranged at the bottom of the base 1 and a filter screen 431 arranged on the top wall of the groove, a fixing plate 432 is fixedly arranged inside the groove, a through opening is relatively opened on the top surface of the fixing plate 432, the through opening is connected with the adjacent discharge port 41 through a conduit, and a first filter plate 433 and a second filter plate 434 are respectively installed inside the two through openings, a rotating member 435 is arranged at the bottom of the groove, a cross bar 436 is relatively installed on the output shaft surface of the rotating member 435, a cleaning brush 437 is fixedly connected to the bottom of the cross bar 436, preferably, the rotating member 435 is a stepping motor, the mesh size of the first filter plate 433 and the second filter plate 434 is the same as the mesh size of the adjacent grading net 42, and the mesh size of the filter screen 431 is between the mesh sizes of the two adjacent grading nets 42.

[0051] When the ultrasonic device 2 is working, the same ultrasonic frequency can cause metal powders of different particle sizes to vibrate with different amplitudes. Through the guidance of multi-directional ultrasonic waves, metal powders of different particle sizes move different distances at the same time, so that the metal powders fall down step by step along the mesh of the grading net 42. Under the action of the transition unit 43, the metal powders fall down along the mesh of the filter screen 431, and then the cross bar 436 is driven to rotate through the output shaft of the rotating member 435, thereby driving the cleaning brush 437 to make the metal powder fall down from the mesh of the first filter plate 433 and the second filter plate 434, and enter the corresponding discharge port 41 along the conduit, so that metal powders of corresponding particle sizes are collected according to different distances, thereby achieving the effect of particle size classification.

Claims

1. A metal powder particle size classification device, comprising a base (1) and an ultrasonic device (2) arranged on a side wall of the base (1), characterized in that: Also includes: A material discharge mechanism (3), wherein the material discharge mechanism (3) is arranged on the inner wall of the base (1); The material discharge mechanism (3) comprises a material shell (31) mounted on the inner wall of the base (1), a crushing unit (32) arranged inside the material shell (31), and a screening unit (33) arranged at the bottom of the crushing unit (32); A grading mechanism (4), wherein the grading mechanism (4) is arranged at the bottom of the base (1); The grading mechanism (4) comprises a discharge port (41) arranged at the bottom of the base (1), and a grading net (42) arranged inside the discharge port (41); a transition unit (43) is arranged on the side of the discharge port (41).

2. A metal powder particle size classification device according to claim 1, characterized in that: The ultrasonic device (2) comprises an ultrasonic generator (21) mounted on a side wall of a base (1), an ultrasonic transducer (22) arranged on the side of the ultrasonic generator (21), and an ultrasonic head (23) arranged on the side of the ultrasonic transducer (22).

3. A metal powder particle size classification device according to claim 2, characterized in that: A slide plate (11) is provided on the top of the base (1), and a handle is installed on the outer surface of the slide plate (11).

4. A metal powder particle size classification device according to claim 3, characterized in that: A feed opening is provided at the top of the material shell (31), and a feed pipe is fixedly arranged inside the feed opening; The crushing unit (32) comprises a crushing roller (321) arranged relative to the inside of the material shell (31), a driving gear (322) arranged at the end of one of the crushing rollers (321), and a driven gear (323) meshed with the side of the driving gear (322), a driving member (324) being further arranged on one side of the driving gear (322), and the driven gear (323) being installed at the end of the other crushing roller (321).

5. A metal powder particle size classification device according to claim 4, characterized in that: The screening unit (33) comprises a material outlet arranged at the bottom of the material shell (31), a screen (331) installed at the material outlet, and a vibrator (332) installed at the bottom of the screen (331).

6. The metal powder particle size classification device according to claim 1, characterized in that: The bottom of the base (1) is provided with a plurality of discharge openings (41) at equal intervals, a transition unit (43) is provided between two adjacent discharge openings (41), and the mesh size of the grading net (42) installed inside the plurality of discharge openings (41) gradually increases.

7. A metal powder particle size classification device according to claim 6, characterized in that: The transition unit (43) comprises a groove arranged at the bottom of the base (1), and a filter screen (431) arranged on the top wall of the groove; a fixing plate (432) is fixedly arranged inside the groove; a through hole is relatively opened on the top surface of the fixing plate (432); the through hole is connected to the adjacent discharge port (41) through a conduit; and a first filter plate (433) and a second filter plate (434) are respectively installed inside the two through holes; a rotating member (435) is arranged at the bottom of the groove; a cross bar (436) is relatively installed on the output shaft surface of the rotating member (435); and a cleaning brush (437) is fixedly connected to the bottom of the cross bar (436).

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