Dust-raising-preventing metal powder screening machine for powder metallurgy

Abstract

The utility model discloses a dust-proof metal powder screening machine for powder metallurgy, which is characterized in that a barrel body is arranged on a supporting mechanism, and the bottom of the barrel body is provided with a hopper-shaped discharge hole; one side of the wall surface of the barrel body is provided with an outlet assembly corresponding to the screening mechanism, and the outlet assembly is used for guiding filtered impurities out; the feeding flow dividing mechanism is arranged at the top of the barrel body and used for conveying metal powder into the barrel body to be screened. The feeding and distributing mechanism comprises a storage barrel arranged at the top of the barrel body, a feeding assembly is arranged at the top of the storage barrel, and a distributing assembly is arranged at the bottom of the storage barrel; the screening mechanism is arranged in the barrel body and used for screening the metal powder. According to the dust-raising-preventing metal powder screening machine for powder metallurgy, metal powder in the material storage barrel is conveyed to the first screen which is obliquely arranged in the barrel body in a flow dividing mode through the arranged flow dividing assembly, and on the basis that the conveying amount of the metal powder is increased, the screening efficiency and effect are further improved.

Description

Technical Field

[0001] This utility model relates to the field of screening machine technology, and in particular to a dust-proof metal powder screening machine for powder metallurgy. Background Technology

[0002] Metal powder refers to a group of metal particles smaller than 1 mm in size, including single metal powders, alloy powders, and powders of certain refractory compounds with metallic properties. It is the main raw material for powder metallurgy, which requires grinding the metal into powder first. Grinding is typically done using a grinding mill. Existing metal powder manufacturing equipment generally uses water atomization and gas atomization methods to produce metal powder. Because these methods produce powders with significant variations in particle size, the resulting particles generally need to be uniformly ground and sieved to obtain uniform metal powder. A grinding mill is a grinding machine that uses abrasive-coated or embedded grinding tools to grind the surface of a workpiece. The main types of grinding mills include disc grinding mills, rotary grinding mills, and various specialized grinding mills.

[0003] However, most screening machines on the market currently use a single conveying pipe to directly transport metal powder onto a horizontal screening screen during the screening process. If the diameter of the conveying pipe is large, the screening effect will be poor, and the powder may accumulate on the screening screen. If the diameter of the conveying pipe is small, the screening efficiency will be low. In addition, a lot of dust is often generated during the screening process, which not only pollutes the environment but also has a significant impact on the health of the workers. Utility Model Content

[0004] In view of the above-mentioned defects or deficiencies in the prior art, it is desirable to provide a dust-proof metal powder screening machine for powder metallurgy.

[0005] This utility model provides a dust-proof metal powder screening machine for powder metallurgy, comprising a support mechanism, a barrel, a feeding and diversion mechanism, and a screening mechanism; wherein...

[0006] The barrel is mounted on the support mechanism, and its bottom is configured as a bucket-shaped discharge port; one side of the wall of the barrel is provided with an outlet component corresponding to the screening mechanism for exporting the filtered impurities.

[0007] The feeding and diversion mechanism is located at the top of the barrel and is used to transport metal powder into the interior of the barrel for sieving. The feeding and diversion mechanism includes a storage barrel that extends through the top of the barrel. The top of the storage barrel is provided with a feeding component for the metal powder to enter the interior of the barrel, and the bottom of the storage barrel is provided with a diversion component for diverting the metal powder.

[0008] The screening mechanism is located inside the barrel and is used to screen metal powder.

[0009] Furthermore, the bottom plate of the storage hopper is provided with multiple parallel strip-shaped through holes.

[0010] Furthermore, the diversion assembly includes multiple plate-shaped arc-shaped guide tubes, one end of which is fixedly disposed on the bottom surface of the bottom plate of the storage tank corresponding to the strip-shaped through hole, for diverting and conveying the metal powder inside the storage tank to the interior of the tank body.

[0011] Furthermore, the feeding assembly includes a flexible sleeve, one end of which is fixedly sleeved on the circumferential outer side of the top of the storage hopper, and the other end is embedded with a pull rope for tightening the opening.

[0012] Furthermore, the flexible sleeve is made of Oxford cloth.

[0013] Furthermore, the screening mechanism includes a mounting box, a first screening screen, a second screening screen, and a vibration motor; wherein,

[0014] The mounting box is fixedly disposed on the outer wall of the barrel body, below the diversion component; the wall of the barrel body is provided with a horizontal strip-shaped through hole corresponding to the mounting box;

[0015] The first screening screen is inclinedly disposed inside the barrel body, below the diversion component;

[0016] The second screening mesh is integrally formed with the first screening mesh; the included angle between the first screening mesh and the second screening mesh is set between 120° and 150°; the side of the second screening mesh away from the first screening mesh passes through the strip-shaped through hole, and the second screening mesh is horizontally fixed inside the mounting box;

[0017] The vibration motor is fixedly installed inside the mounting box, and its drive end is connected to the second screening screen.

[0018] Furthermore, the outlet component includes an impurity outlet disposed on the side wall of the barrel, the bottom of the impurity outlet being disposed on the side of the first screening screen away from the second screening screen; a sealing door is hinged to the side wall of the barrel.

[0019] Furthermore, the support mechanism includes a fixed support ring sleeved on the outer circumference of the barrel body, and the bottom surface of the support ring is fixedly provided with support legs distributed in a triangular or rectangular shape.

[0020] Furthermore, an annular groove is provided on the inner side of the lower part of the hopper-shaped discharge port, and an insertion interface communicating with the outside is provided on one side of the annular groove. An insertion baffle is provided inside the annular groove through the insertion interface.

[0021] Compared with the prior art, the beneficial effects of this utility model are:

[0022] This utility model relates to a dust-proof metal powder screening machine for powder metallurgy. Through a diversion component, the metal powder inside the storage bin is diverted and transported to the inclined first screen inside the bin. This not only increases the amount of metal powder conveyed but also improves the screening efficiency and effect. In addition, the flexible sleeve can seal the connection between the sleeve and the feed pipe to prevent dust from overflowing, polluting the environment, and harming human health, thus achieving a dust-proof effect.

[0023] It should be understood that the content described in the utility model description section is not intended to limit the key or important features of the embodiments of this utility model, nor is it intended to limit the scope of this utility model.

[0024] Other features of this invention will become readily apparent from the following description. Attached Figure Description

[0025] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0026] Figure 1 A schematic diagram of a dust-proof metal powder screening machine for powder metallurgy provided for an embodiment of this utility model;

[0027] The following are labeled in the diagram: 1. Support ring; 2. Support leg; 3. Bucket body; 4. Hopper-shaped discharge port; 5. Storage bucket; 6. Strip-shaped through hole; 7. Arc-shaped guide tube; 8. Flexible sleeve; 9. Pull rope; 10. Mounting box; 11. First screening screen; 12. Second screening screen; 13. Vibration motor; 14. Impurity discharge port; 15. Sealing door; 16. Annular groove; 17. Insertion interface; 18. Insertion baffle; 19. Strip-shaped through hole. Detailed Implementation

[0028] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the relevant invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, only the parts relevant to the invention are shown in the accompanying drawings.

[0029] It should be noted that, where there is no conflict, the embodiments and features in the embodiments of this utility model can be combined with each other. The present utility model will now be described in detail with reference to the accompanying drawings and embodiments.

[0030] Please refer to Figure 1 This utility model provides a dust-proof metal powder screening machine for powder metallurgy, used for screening metal powders. Specifically, it includes a support mechanism, a barrel, a feeding and diversion mechanism, and a screening mechanism; wherein...

[0031] In a preferred embodiment, the support mechanism includes a fixed support ring 1 sleeved on the outer circumference of the barrel body, and the bottom surface of the support ring 1 is fixedly provided with support legs 2 distributed in a triangular or rectangular shape.

[0032] The barrel body 3 is mounted on the support mechanism, and its bottom is set as a bucket-shaped discharge port 4; the support mechanism supports the barrel body 3 to facilitate the discharge of material from the bucket-shaped discharge port 4 at the bottom of the barrel body 3.

[0033] The feeding diversion mechanism is located at the top of the barrel 3 and is used to transport metal powder into the interior of the barrel 3 for screening by the screening mechanism.

[0034] The feeding and diversion mechanism includes a storage tank 5 that extends through the top of the tank body 3. The top of the storage tank 5 is provided with a feeding component for metal powder to enter the interior of the tank body 3, and the bottom of the storage tank 5 is provided with a diversion component for diverting the metal powder.

[0035] The storage bin 5 is used to temporarily store a portion of the metal powder. The metal powder inside the storage bin 5 is diverted and transported to the screening mechanism by the diversion component set at its lower part, thereby improving the screening effect and efficiency.

[0036] In a preferred embodiment, the bottom plate of the storage tank 5 is provided with a plurality of parallel strip-shaped through holes 6, and the diversion component is provided on the bottom surface of the bottom plate of the storage tank 5 corresponding to the strip-shaped through holes 6.

[0037] Specifically, the diversion component includes multiple plate-shaped arc-shaped guide tubes 7. One end of the arc-shaped guide tube 7 is fixedly set on the bottom surface of the bottom plate of the storage tank 5 corresponding to the strip-shaped through hole 6, and is used to divert and transport the metal powder inside the storage tank 5 to the inside of the tank body 3.

[0038] In a preferred embodiment, the feeding assembly includes a flexible sleeve 8. One end of the flexible sleeve 8 is fixedly sleeved on the outer circumferential side of the top of the storage tank 5, and the other end is embedded with a pull rope 9 for tightening the opening. That is, the pull rope 9 can pull and tighten the corresponding port of the flexible sleeve 8 to avoid dust generation.

[0039] In a preferred embodiment, the flexible sleeve 8 is made of Oxford cloth, which has the advantages of toughness, wear resistance, pressure resistance, impact resistance, tight fabric, and strength.

[0040] That is, the metal powder enters the storage tank 5 from the top of the flexible sleeve 8. The bottom plate of the storage tank 5 is provided with parallel strip-shaped through holes 6. On the bottom plate of the storage tank 5, there are multiple arc-shaped guide tubes 7 corresponding to the strip-shaped through holes 6. The arc-shaped guide tubes 7 are plate-shaped and hollow inside, so that the metal powder inside the storage tank 5 can enter the arc-shaped guide tubes 7 through the strip-shaped through holes 6 and then be screened by the screening mechanism.

[0041] The screening mechanism, located inside the barrel 3, is used to screen metal powder.

[0042] In a preferred embodiment, the screening mechanism includes a mounting box 10, a first screening screen 11, a second screening screen 12, and a vibration motor 13; wherein,

[0043] The mounting box 10 is fixedly installed on the outer wall of the barrel 3 below the diversion component; a horizontal strip-shaped through hole 19 is provided on the wall of the barrel 3 corresponding to the mounting box 10.

[0044] The first screening screen 11 is inclinedly set inside the barrel 3 below the diversion component, and is used to screen the metal powder coming down from the diversion component.

[0045] The second screening screen 12 is integrally formed with the first screening screen 11; the included angle between the first screening screen 11 and the second screening screen 12 is set between 120° and 150°; the side of the second screening screen 12 away from the first screening screen 11 passes through the strip-shaped through hole 19, and the second screening screen 12 is horizontally fixed inside the mounting box 10.

[0046] The vibration motor 13 is fixedly installed inside the mounting box 10, and its drive end is connected to the second screening screen 12.

[0047] The main function of the first screening screen 11 is to connect with the second screening screen 12 and the vibration motor 13, thereby realizing the vibration of the first screening screen 11 and avoiding the clogging of the first screening screen 11.

[0048] An outlet component is provided on one side of the wall of the barrel 3 corresponding to the screening mechanism, which is used to discharge the filtered impurities; wherein, the outlet component is located on the outer wall of the barrel 3 opposite to the mounting box 10.

[0049] In a preferred embodiment, the outlet component includes an impurity outlet 14 disposed on the side wall of the barrel 3. The bottom surface of the impurity outlet 14 is disposed on the side of the first screening screen 11 away from the second screening screen 12, so that the impurities filtered on the first screening screen 11 can quickly roll down to the impurity outlet 14 for discharge. A sealing door 15 is hinged to the side wall of the barrel 3.

[0050] In a preferred embodiment, an annular groove 16 is provided on the inner side of the lower part of the bucket-shaped discharge port 4. An insertion interface 17 communicating with the outside is provided on one side of the annular groove 16. An insertion baffle 18 is provided through the insertion interface 17 and inserted into the interior of the annular groove 16. The insertion baffle 18 is used to block the bucket-shaped discharge port 4.

[0051] The working principle of this utility model:

[0052] The end of the pipe that conveys metal powder is inserted into the inside of the top of the flexible sleeve 8, and the port is tightened by pulling the pull rope 9 to avoid dust leakage.

[0053] Then the metal powder is conveyed into the storage tank 5, and then enters into each arc-shaped guide cylinder 7 through the strip-shaped through hole 6 for diversion and conveying of the metal powder. It is then screened by the first screening screen 11. At the same time, the vibration motor 13 is started, driving the first screening screen 11 and the second screening screen 12 to vibrate, so as to avoid the first screening screen 11 from being blocked.

[0054] Impurities in the metal powder are filtered and retained on the top surface of the first screening screen 11. Metal powder with a particle size that meets the standard passes through the screening of the first screening screen 11 and enters the lower part of the first screening screen 11. If it is necessary to export the qualified metal powder, the plug-in baffle 18 can be pulled out to export the metal powder.

[0055] Larger impurities in the metal powder are retained on the top surface of the first screening screen 11. Since the first screening screen 11 is inclined, the impurities will automatically roll to the impurity outlet 14, making it easy to open the sealing door 15 for timely cleaning.

[0056] In the description of this specification, the terms "connection," "installation," and "fixing," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0057] In the description of this specification, the terms "one embodiment," "some embodiments," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0058] The above are merely preferred embodiments of this application and are not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A dust-proof metal powder screening machine for powder metallurgy, characterized in that, This includes a support structure, a barrel body, a feeding and diversion mechanism, and a screening mechanism; among which, The barrel is mounted on the support mechanism, and its bottom is configured as a bucket-shaped discharge port; one side of the wall of the barrel is provided with an outlet component corresponding to the screening mechanism for exporting the filtered impurities. The feeding and diversion mechanism is located at the top of the barrel and is used to transport metal powder into the interior of the barrel for sieving. The feeding and diversion mechanism includes a storage barrel that extends through the top of the barrel. The top of the storage barrel is provided with a feeding component for the metal powder to enter the interior of the barrel, and the bottom of the storage barrel is provided with a diversion component for diverting the metal powder. The screening mechanism is located inside the barrel and is used to screen metal powder.

2. The dust-proof metal powder screening machine for powder metallurgy according to claim 1, characterized in that, The bottom plate of the storage hopper has multiple parallel strip-shaped through holes.

3. The dust-proof metal powder screening machine for powder metallurgy according to claim 2, characterized in that, The diversion assembly includes multiple plate-shaped arc-shaped guide tubes. One end of each arc-shaped guide tube is fixedly disposed on the bottom surface of the bottom plate of the storage tank, corresponding to the strip-shaped through hole, for diverting and conveying the metal powder inside the storage tank to the interior of the tank body.

4. The dust-proof metal powder screening machine for powder metallurgy according to claim 3, characterized in that, The feeding assembly includes a flexible sleeve, one end of which is fixedly sleeved on the outer circumferential side of the top of the storage hopper, and the other end is embedded with a pull rope for tightening the opening.

5. The dust-proof metal powder screening machine for powder metallurgy according to claim 4, characterized in that, The flexible sleeve is made of Oxford cloth.

6. The dust-proof metal powder screening machine for powder metallurgy according to claim 5, characterized in that, The screening mechanism includes a mounting box, a first screening screen, a second screening screen, and a vibrating motor; wherein, The mounting box is fixedly disposed on the outer wall of the barrel body, below the diversion component; the wall of the barrel body is provided with a horizontal strip-shaped through hole corresponding to the mounting box; The first screening screen is inclinedly disposed inside the barrel body, below the diversion component; The second screening mesh is integrally formed with the first screening mesh; the included angle between the first screening mesh and the second screening mesh is set between 120° and 150°; the side of the second screening mesh away from the first screening mesh passes through the strip-shaped through hole, and the second screening mesh is horizontally fixed inside the mounting box; The vibration motor is fixedly installed inside the mounting box, and its drive end is connected to the second screening screen.

7. The dust-proof metal powder screening machine for powder metallurgy according to claim 6, characterized in that, The outlet assembly includes an impurity outlet disposed on the side wall of the barrel, with the bottom of the impurity outlet facing the side of the first screening screen away from the second screening screen; a sealing door is hinged to the side wall of the barrel.

8. The dust-proof metal powder screening machine for powder metallurgy according to claim 7, characterized in that, The support mechanism includes a fixed support ring sleeved on the outer circumference of the barrel body, and the bottom surface of the support ring is fixedly provided with support legs distributed in a triangular or rectangular shape.

9. The dust-proof metal powder screening machine for powder metallurgy according to claim 8, characterized in that, The lower inner side of the hopper-shaped discharge port is provided with an annular groove, and one side of the annular groove is provided with an insertion interface that communicates with the outside. An insertion baffle is provided that passes through the insertion interface and is inserted into the interior of the annular groove.

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