Metal powder grinding and screening equipment

Abstract

The utility model relates to the technical field of metal powder screening, in particular to metal powder grinding and screening equipment which comprises a cylindrical shell and a sealing door connected with the cylindrical shell, a grinding connecting pipe with the bottom end extending into the shell is installed on the sealing door, a rotating plate is rotationally connected to the shell, and a motor is connected to the rear surface of the rotating plate. The bottom of the motor is connected with a fixing frame, the two ends of the fixing frame are connected with the outer wall of the shell, concentric cylindrical screening pieces different in size are installed on the side, located in the shell, of the rotating plate, and cleaning brushes matched with the cylindrical screening pieces are installed on the sealing door. Compared with planar vibration screening, downward passing of small-particle-size metal powder on the top side is not affected easily due to accumulation of large-particle-size metal powder on the bottom side, the screening effect can be improved, meanwhile, in the screening process, the screening plate is in continuous contact with the static cleaning brush, the metal powder with the blocked surface can be brushed down, and the situation that the screening efficiency is reduced due to blockage is prevented.

Description

Technical Field

[0001] This utility model relates to the field of metal powder sieving technology, specifically to a metal powder grinding and sieving equipment. Background Technology

[0002] Metal powder refers to groups of metal particles smaller than 1 mm in size. It includes single metal powders, alloy powders, and powders of certain refractory compounds with metallic properties, and is the main raw material for powder metallurgy. After grinding, metal powders need to be sieved to ensure the quality of subsequent processing. Current metal powder sieving methods generally involve stacking sieves of different mesh sizes in sequence, with a feeding tray underneath to collect the sieved powder. This requires manual shaking of the sieve, which is time-consuming and labor-intensive.

[0003] Chinese patent application number 202321535199.9 discloses a metal powder sieving device for laboratory use. It uses a vibrating motor to drive a support tray and a loading tray and sieve tray stacked on top of it to vibrate, thereby sieving the metal powder. However, this planar sieving method is prone to problems when there is a large amount of accumulated metal powder, as large-diameter powder particles can obstruct the downward movement of smaller-diameter metal powder particles above, reducing sieving quality and efficiency. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this utility model provides a metal powder grinding and screening device that solves the problem that in planar screening, when there is a large amount of accumulated metal powder, large-diameter powder tends to block the downward movement of small-diameter metal powder above, thus reducing screening quality and efficiency.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model is implemented through the following technical solution: a metal powder grinding and screening device, comprising a cylindrical outer shell and a closed door connected thereto, a grinding connecting pipe extending from the bottom end into the outer shell is installed on the closed door, a rotating plate is rotatably connected to the outer shell, a motor is connected to the rear surface of the rotating plate, a fixed frame is connected to the bottom of the motor, the two ends of the fixed frame are connected to the outer wall of the outer shell, cylindrical screening components of different sizes and concentricity are installed on one side of the rotating plate located inside the outer shell, and a cleaning brush adapted to the cylindrical screening components is installed on the closed door.

[0008] Furthermore, the cylindrical screening component includes a cylindrical body with three notches. A screen plate and a receiving plate are snapped into the notches. The screen plate and the receiving plate can be installed and removed from the cylindrical body by insertion and removal, which is simple to operate and facilitates the cleaning of metal powder on its surface, thus improving its applicability.

[0009] Furthermore, the closed door is equipped with a support roller that can support the cylindrical screening component. The support roller can support the rotating cylindrical screening component and improve stability.

[0010] Furthermore, there are three cylindrical screening components. The aperture of the outer screen plate is smaller than that of the inner screen plate, which ensures that the metal powder on the innermost cylindrical screening component can be gradually screened onto the outermost cylindrical screening component as the equipment is working, thus achieving step-by-step screening.

[0011] Furthermore, the receiving plates on the three cylindrical screening components are all located at the bottom of the cylindrical screening components, and the top of the receiving plates is equipped with handles for easy gripping and removal, so that the metal powder after screening can be collected and processed.

[0012] Furthermore, an inner support block is installed on the side wall of the rotating plate and within the inner circumference of the cylindrical screening component to support the screen plate and the receiving plate, and an outer support block is installed on the side wall of the rotating plate and within the outer circumference of the cylindrical screening component to support the screen plate and the receiving plate. The inner and outer support blocks help improve the stability of the screen plate and the receiving plate fixed inside the cylinder.

[0013] (III) Beneficial Effects

[0014] This utility model provides a metal powder grinding and sieving device. It has the following beneficial effects:

[0015] 1. This metal powder grinding and screening equipment uses a motor to drive a rotating plate to rotate, which in turn causes the metal powder to be screened through the screen plate during continuous rotation. During the screening process, the metal powder is always in motion. Compared with flat vibrating screening, it is less likely to be affected by the accumulation of large-diameter metal powder on the bottom side, which would hinder the downward passage of small-diameter particles on the top side, thus helping to improve the screening effect. At the same time, during the screening process, the screen plate is constantly in contact with a stationary cleaning brush, which can brush off the metal powder that is blocked on the surface, preventing the screening efficiency from being reduced due to blockage.

[0016] 2. This metal powder grinding and screening equipment uses a screen plate that is easy to install and remove from the cylinder, which facilitates the screening of metal powders of different particle sizes according to actual needs. The receiving plate, which is easy to install and remove, can be removed together with the metal powder above it after screening, simplifying the collection and processing of metal powder. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0018] Figure 2 This is a schematic diagram of the cylindrical screening component of this utility model.

[0019] Figure 3 This is a rear view of the structure of this utility model.

[0020] Figure 4 This is a side view of the structure of this utility model.

[0021] In the diagram: 1. Outer shell; 2. Enclosed door; 3. Rotating plate; 4. Motor; 5. Fixing frame; 6. Cylindrical screening component; 61. Cylinder; 62. Screen plate; 63. Support plate; 64. Inner support block; 65. Outer support block; 66. Handle; 7. Cleaning brush; 8. Support roller; 9. Grinding connecting pipe. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] This utility model provides a metal powder grinding and sieving device, such as... Figure 1-4 As shown, the device includes a cylindrical outer shell 1 and a closed door 2 connected to it. A grinding connecting pipe 9, with its bottom end extending into the outer shell 1, is installed on the closed door 2. A rotating plate 3 is rotatably connected to the outer shell 1, and a motor 4 is connected to the rear surface of the rotating plate 3. A PLC controller electrically connected to the motor 4 is installed on the outer wall of the outer shell 1. A fixing bracket 5 is connected to the bottom of the motor 4, and both ends of the fixing bracket 5 are connected to the outer wall of the outer shell 1. On one side of the rotating plate 3 inside the outer shell 1, concentric cylindrical screening components 6 of different sizes are installed. A cleaning brush 7, adapted to the cylindrical screening components 6, is installed on the closed door 2. The screened components are... The metal powder enters the innermost cylindrical screening component 6 through the grinding connecting pipe 9. The motor 4 drives the rotating plate 3 to rotate, so that the metal powder is screened through the screen plate 62 while rotating continuously. During the screening process, the metal powder is always in motion. Compared with the flat vibrating screening, it is less likely to be affected by the accumulation of large-diameter metal powder on the bottom side, which will affect the downward passage of small-diameter particles on the top side, thus helping to improve the screening effect. At the same time, during the screening process, the screen plate 62 is constantly in contact with the stationary cleaning brush 7, which can brush off the metal powder that is blocked on the surface and prevent the screening efficiency from being reduced due to blockage.

[0024] Specifically, the cylindrical screening component 6 includes a cylindrical body 61 with three notches. A screen plate 62 and a receiving plate 63 are engaged at the notches. After screening, the receiving plate 63 is located on the lowest side of the cylindrical screening component 6. The screen plate 62 and the receiving plate 63 can be installed and removed from the cylindrical body 61 by insertion and removal. The operation is simple and convenient for cleaning the metal powder on its surface, thus improving its applicability.

[0025] Specifically, the closed door 2 is equipped with a support roller 8 that can support the cylindrical screening component 6. The support roller 8 can support the rotating cylindrical screening component 6 and improve its stability.

[0026] Specifically, there are three cylindrical screening components 6. The aperture of the outer screen plate 62 is smaller than that of the inner screen plate 62, which ensures that the metal powder on the innermost cylindrical screening component 6 can be gradually screened onto the outermost cylindrical screening component 6 as the equipment is working, thus achieving step-by-step screening.

[0027] Specifically, the receiving plates 63 on the three cylindrical screening components 6 are all located at the bottom of the cylindrical screening component 6. The top of the receiving plate 63 is equipped with a handle 66, which makes it easy to grip and remove the receiving plate 63 to collect and process the metal powder after screening.

[0028] Specifically, an inner support block 64 is installed on the side wall of the rotating plate 3 and inside the cylindrical screening component 6 to support the screen plate 62 and the receiving plate 63. An outer support block 65 is installed on the side wall of the rotating plate 3 and outside the cylindrical screening component 6 to support the screen plate 62 and the receiving plate 63. The inner support block 64 and the outer support block 65 help improve the stability of the screen plate 62 and the receiving plate 63 fixed inside the cylinder 61. The outer periphery of the outer support block 65 is flush with the outer periphery of the cylinder 61. The rotating inner support block 64 can also drive the metal powder to move to a higher position during rotation, which facilitates the flipping of piled metal powder, improves the rolling effect, and thus improves the screening efficiency.

[0029] Working principle: During use, the metal powder to be screened enters the innermost cylindrical screening component 6 through the grinding connecting pipe 9. The motor 4 drives the rotating plate 3 to rotate, so that the metal powder is screened through the screen plate 62 during continuous rotation. The screen plate 62 is in constant contact with the stationary cleaning brush 7, which can brush off the metal powder that is blocked on the surface and prevent the screening efficiency from being reduced due to blockage. After screening, metal powder of different particle sizes stays on different receiving plates 63. Open the sealing door 2 and remove the receiving plate 63 to collect the screened metal powder.

[0030] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0031] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A metal powder grinding and sieving apparatus, characterized by, The utility model provides a kind of grinding machine, including cylindrical shell (1) and the closure door (2) connected with it, and the closure door (2) is equipped with the grinding connecting pipe (9) of bottom end extension to the shell (1), and the shell (1) is rotatably connected with rotary plate (3), and the rear surface of rotary plate (3) is connected with motor (4), and the bottom of motor (4) is connected with fixed frame (5), the both ends of fixed frame (5) are connected with the outer wall of shell (1), and the one side of rotary plate (3) in shell (1) is equipped with the cylindrical screening member (6) of different size and concentric, and the closure door (2) is equipped with the cleaning brush (7) compatible with cylindrical screening member (6).

2. A metal powder mill classifying apparatus according to claim 1, characterized in that: The cylindrical screening member (6) includes a cylinder body (61), and three notches are present on the cylinder body (61), and a sieve plate (62) and a receiving plate (63) are clamped at the notches.

3. A metal powder mill classifying apparatus according to claim 1, wherein: The closure door (2) is equipped with a support roller (8) capable of supporting the cylindrical screening member (6).

4. A metal powder mill classifying apparatus according to claim 2, wherein: The number of the cylindrical screening member (6) is three, and the aperture of the sieve plate (62) at the periphery is smaller than that of the sieve plate (62) at the inner periphery.

5. A metal powder mill classifying apparatus according to claim 4, wherein: The receiving plate (63) on the three cylindrical screening members (6) is located at the lowermost part of the cylindrical screening member (6), and a handle (66) is installed on the top of the receiving plate (63).

6. A metal powder mill classifying apparatus according to claim 2, wherein: The inner support block (64) capable of supporting the sieve plate (62) and the receiving plate (63) is installed on the side wall of the rotary plate (3) and at the inner periphery of the cylindrical screening member (6), and the outer support block (65) capable of supporting the sieve plate (62) and the receiving plate (63) is installed on the side wall of the rotary plate (3) and at the periphery of the cylindrical screening member (6).

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