Adjustable alloy powder vibration screening device

Abstract

The utility model relates to a screening device, in particular to an adjustable alloy powder vibration screening device which comprises a frame, a fixing frame, a limiting plate, a sliding frame, a mounting plate and the like. The frame is a mounting shell of the whole screening device, the top of the frame is provided with a feeding port, fixing frames are fixedly connected to the inner bottom of the frame in a bilateral symmetry mode, each fixing frame is composed of a supporting rod on the lower portion and a guiding frame on the upper portion, the guiding frames of the fixing frames are U-shaped frames, and limiting plates are slidably connected to the guiding frames of the fixing frames. The double-layer screen plate of the screen mesh frame I and the screen mesh frame II is respectively designed in the sliding frame, and the position between the screen mesh frame I and the screen mesh frame II is changed through the screw rod thread adjustment after the knob is screwed, so that the screen holes between the screen mesh frame I and the screen mesh frame II can be combined into screen holes with various sizes; therefore, the effect of screening various alloy powder by flexibly adjusting different screen holes is achieved.

Description

Technical Field

[0001] The utility model relates to a screening device, in particular to an adjustable alloy powder vibration screening device. Background Art

[0002] With the development of modern manufacturing, especially in fields such as additive manufacturing, precision casting and powder metallurgy, the requirements for materials are becoming increasingly higher. These fields usually require high-purity and uniformly distributed alloy powders as raw materials to ensure the performance and quality of the final product. For example, in 3D printing, the particle size distribution of the powder directly affects the density, surface roughness and mechanical properties of the printed parts, while in precision casting, large particles need to be removed to improve the surface finish and dimensional accuracy of the castings.

[0003] The patent with patent announcement number CN209406823U discloses an alloy powder screening device, including a rotary vibrating screen arranged on a base through an elastic component, the outer shell of the rotary vibrating screen is divided into an upper cover and a shell, the top of the upper cover is provided with a feed port, and a distribution device is provided between the upper cover and the shell, the distribution device includes a distribution circular plate, a plurality of distribution holes are distributed on the distribution circular plate, and the centers of the plurality of distribution holes are distributed in an Archimedean spiral shape with the center of the distribution circular plate as the base point, an upper retaining ring is fixedly provided at the upper surface of the distribution circular plate corresponding to the upper cover, and a lower retaining ring is fixedly provided at the lower surface of the distribution circular plate corresponding to the shell, and the upper and lower retaining rings are respectively connected to the upper cover and the shell bearings; the outer edge of the distribution circular plate is toothed; the outer edge is located outside the shell of the rotary vibrating screen and is meshed with a transmission gear, the transmission gear is connected to the rotating shaft, and the rotating shaft is connected to the output end of the motor.

[0004] The above patent discloses an alloy powder screening device, which makes the force and tension on all parts of the screen uniform through the setting of the distribution device, so that the screening effect is good, and the distribution device is adjustable in rotation speed to adapt to the screening of different powders and achieve better screening effect. However, when adding powder material to the screening device, if too much material is added and concentrated on the screen, the surface tension of the screen will increase sharply, and the porosity of the screen will also increase accordingly, thereby affecting the screening quality. This may not only lead to a decline in product quality, but also easily cause damage to the screen, increase the return screening rate, and thus affect the overall production efficiency. Therefore, it is necessary to design an adjustable alloy powder vibration screening device in response to the shortcomings of the existing technology. Utility Model Content

[0005] When screening metal powder, the existing alloy powder screening device has the disadvantage that the sieve holes cannot be adjusted, so the material is easily concentrated and accumulated on the sieve, resulting in low screening quality and efficiency. In order to overcome the existing problems, an adjustable alloy powder vibration screening device is provided.

[0006] The technical solution is: an adjustable alloy powder vibration screening device, including a frame, a fixed frame, a limit plate, a sliding frame, a mounting plate, a screen frame I, a screw rod, a screen frame II, a guide rod and a knob. The top of the frame is a feed port, and the inner bottom of the frame is fixedly connected to a fixed frame symmetrically on the left and right. The fixed frame consists of a lower support rod and an upper guide frame. The guide frame of the fixed frame is a U-shaped frame. The guide frame of the fixed frame is slidably connected to the limit plate. The limit plate slides through the front side of the guide frame of the fixed frame. The left and right sides of the sliding frame are fixedly connected with mounting plates. The sliding frame is fixedly connected to the mounting plate. The mounting plate is slidably installed between the fixed frames on both sides, and the mounting plate is slidably limited between the limit plate and the guide frame of the fixed frame. The sliding frame is a frame body with upper and lower openings, and a screen frame I is fixedly connected to the inner wall of the sliding frame, and a screen frame II is also slidably installed on the inner wall of the sliding frame. The screen frame II slides and covers the screen frame I. A screw rod is rotatably installed on the front of the sliding frame, and a guide rod adapted to the screw rod is rotatably installed on the rear of the sliding frame. The screw rod and the screen frame II are threadedly connected, and the guide rod and the screen frame II are slidably connected. A knob is installed at one end of the screw rod.

[0007] Furthermore, the screen materials of the screen frame I and the screen frame II are both made of corrosion-resistant and wear-resistant stainless steel, and the screen frame I is a grid-shaped screen, and the screen frame II is a long strip-shaped screen.

[0008] Furthermore, an electric cam is included. The electric cam is rotatably mounted on one side of the inner wall of the frame, and the electric cam is in contact with the mounting plate.

[0009] Furthermore, the feed port on the top of the frame is funnel-shaped and tilted inwards, the feed port of the frame faces the inside of the sliding frame, and openings are provided on the upper parts of the left and right side walls of the frame.

[0010] Furthermore, it also includes a sliding plate, which is symmetrically slidably installed on the upper part of the frame through the through opening, and the lower end of the feed port at the top of the frame is in contact with the top surface of the sliding plate, and the sliding plate is used to close the feed port of the frame.

[0011] Furthermore, the outer ends of the sliding plates are each provided with a handle for easy pushing and pulling, and the sides of the sliding plates are each provided with a sealing gasket.

[0012] Furthermore, a baffle is included. The front side of the frame is provided with an opening. The baffle is rotatably installed on the front side of the frame through the opening. The baffle is provided with a handle.

[0013] The beneficial effects of the utility model are as follows: 1. The utility model designs double-layer sieve plates of screen frame I and screen frame II in the sliding frame respectively, and after turning the knob, the position between screen frame I and screen frame II is changed by adjusting the screw thread, so that the sieve holes between screen frame I and screen frame II can be combined to form sieve holes of various sizes, thereby achieving the effect of being able to flexibly adjust different sieve holes to meet the screening of various alloy powders.

[0014] 2. The utility model can provide a symmetrical sliding plate at the top feed port of the frame. After the sliding plate seals and closes the frame feed port, when the screen frame I and the screen frame II screen the alloy powder, the alloy dust scattered during the screening can be blocked by the sliding plate, avoiding the alloy dust vibrated out from drifting into the outside air, thereby improving the safety of the device when screening alloy powder. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model.

[0016] Figure 2 It is a three-dimensional structural sectional view of the frame of the utility model.

[0017] Figure 3 It is a schematic diagram of the three-dimensional structure of the screen frame I, the screw rod and the screen frame II of the utility model.

[0018] Figure 4 It is an exploded view of the screening frame I and the screening frame II of the utility model.

[0019] The names and serial numbers of the parts in the figure are: 1_frame, 2_fixing frame, 3_limiting plate, 4_sliding frame, 41_mounting plate, 5_screen frame I, 6_screw rod, 7_screen frame II, 8_guide rod, 9_knob, 10_electric cam, 11_sliding plate, 12_baffle. DETAILED DESCRIPTION

[0020] The preferred technical solution of the present utility model is described in detail below with reference to the accompanying drawings.

[0021] Example: An adjustable alloy powder vibration screening device, such as Figure 2-Figure 4As shown, it includes a frame 1, a fixed frame 2, a limit plate 3, a sliding frame 4, a mounting plate 41, a screen frame I5, a screw rod 6, a screen frame II7, a guide rod 8 and a knob 9. The frame 1 is the mounting shell of the entire screening device. The top of the frame 1 is the feed port. The inner bottom of the frame 1 is symmetrically fixed with a fixed frame 2. The fixed frame 2 consists of a lower support rod and an upper guide frame. The guide frame of the fixed frame 2 is a U-shaped frame. The guide frame of the fixed frame 2 is slidably connected to the limit plate 3. The limit plate 3 slides through the front side of the guide frame of the fixed frame 2. The left and right sides of the sliding frame 4 are fixed with mounting plates 41. The sliding frame 4 is slidably installed between the fixed frames 2 on both sides through the mounting plates 41. The mounting plates 41 are slidably limited between the limit plates 3 and the guide frames of the fixed frame 2. To the frame, the sliding frame 4 is a frame with upper and lower openings, the mounting plate 41 passes through the guide frame on the upper part of the fixed frame 2, and a screen frame I5 is fixedly connected to the inner wall of the sliding frame 4, and a screen frame II7 is also slidably installed on the inner wall of the sliding frame 4, and the screen frame II7 slides and covers the screen frame I5, the front of the sliding frame 4 is rotatably installed with a screw rod 6, and the rear of the sliding frame 4 is rotatably installed with a guide rod 8 adapted to the screw rod 6, the screw rod 6 and the screen frame II7 are threadedly connected, the guide rod 8 and the screen frame II7 are slidably connected, and a knob 9 is installed at one end of the screw rod 6; the screen materials of the screen frame I5 and the screen frame II7 are made of corrosion-resistant and wear-resistant stainless steel, and the screen frame I5 is a lattice screen, and the screen frame II7 is a long strip screen.

[0022] like Figure 2 As shown, an electric cam 10 is also included. The electric cam 10 is rotatably installed on one side of the inner wall of the frame 1. The electric cam 10 is in contact with the mounting plate 41. The electric cam 10 rotates and reciprocally squeezes the mounting plate 41, so that the sliding frame 4 drives the screen frame I5 and the screen frame II7 inside it to perform vibration screening.

[0023] like Figure 2 As shown, the feed port on the top of the frame 1 is funnel-shaped and tilted inwards. The feed port of the frame 1 faces the inside of the sliding frame 4. The upper parts of the left and right side walls of the frame 1 are provided with through openings.

[0024] like Figure 1 and Figure 2 As shown, it also includes a sliding plate 11, which is symmetrically slidably installed on the upper part of the frame 1 through the through opening, and the lower end of the feed port at the top of the frame 1 is in contact with the top surface of the sliding plate 11, and the sliding plate 11 is used to close the feed port of the frame 1; the outer ends of the sliding plates 11 are installed with handles for easy pushing and pulling, and the sides of the sliding plates 11 are provided with sealing gaskets. When the sliding plates 11 are closed, they can prevent the screened alloy powder from escaping outward.

[0025] like Figure 1 As shown, a baffle 12 is also included. An opening is provided on the front side of the frame 1. The baffle 12 is rotatably installed on the front side of the frame 1 through the opening. A handle is provided on the baffle 12. The baffle 12 can be sealed and closed on the front side of the frame 1.

[0026] When using the present device to screen alloy powder, first pull out the sliding plate 11 from the frame 1 in the direction away from each other to open the feed port on the top of the frame 1, then pour the alloy powder to be screened into the sliding frame 4 from the feed port, and then reset the sliding plate 11 and push it back into the inside of the frame 1 to close the feed port. At this time, the electric cam 10 is powered on and enabled, and the enabled electric cam 10 rotates and intermittently squeezes on the mounting plate 41. The compressed mounting plate 41 will drive the sliding frame 4 to slide up and down under the guidance of the fixed frame 2, and the sliding frame 4 that slides up and down will drive the screen frame Ⅰ5 and the screen frame Ⅱ7 therein to vibrate up and down. When the alloy powder to be screened enters the sliding frame 4, it will fall onto the screen frame Ⅱ7 and be screened by the screen frames Ⅰ5 and Ⅱ7 that vibrate up and down. When it is necessary to adjust the screening on the screen frames Ⅰ5 and Ⅱ7 When screening the holes, the baffle 12 can be rotated to open and the electric cam 10 can be closed. The screw rod 6 can be rotated by turning the knob 9. The rotating screw rod 6 will drive the screen frame II 7 to move on the screen frame I5, so that the screen holes between the screen frame I5 and the screen frame II7 are staggered and combined to form a suitable screen hole size, thereby meeting the screening needs of different alloy powders and improving the application range of this screening device. When the screening of the alloy powder is completed, the baffle 12 can be rotated to open, and the limit plate 3 can be pulled up from the guide frame of the fixed frame 2 so that the mounting plate 41 is no longer limited by the limit plate 3. Then, the entire sliding frame 4 can be taken out from the frame 1 to remove the fine alloy powder sieved into the bottom of the frame 1, and the coarse alloy powder sieved out from the screen frame I5 and the screen frame II7 can be recovered. At the same time, the screen frame I5 and the screen frame II7 can be cleaned and maintained.

[0027] The technical principles of the embodiments of the present invention have been described above in conjunction with specific embodiments. These descriptions are intended solely to explain the principles of the embodiments of the present invention and should not be construed in any way as limiting the scope of protection of the embodiments of the present invention. Based on the explanations herein, those skilled in the art will be able to conceive of other specific implementations of the embodiments of the present invention without inventive effort, and these implementations will fall within the scope of protection of the embodiments of the present invention.

Claims

1. An adjustable alloy powder vibration screening device, comprising a frame (1), a fixed frame (2), a limiting plate (3), a sliding frame (4) and a mounting plate (41), the top of the frame (1) being a feed port, the inner bottom of the frame (1) being symmetrically fixed with a fixed frame (2), the fixed frame (2) being composed of a support rod and a guide frame, the guide frame of the fixed frame (2) being slidably connected with a limiting plate (3), the limiting plate (3) slidingly passing through the front side of the guide frame of the fixed frame (2), the left and right sides of the sliding frame (4) being fixed with mounting plates (41), the sliding frame (4) being slidably installed between the fixed frames (2) on both sides through the mounting plates (41), the mounting plates (41) being slidably limited between the limiting plates (3) and the guide frame of the fixed frame (2), the sliding frame (4) being a frame body with upper and lower openings, characterized in that It also includes a screen frame I (5), a screw rod (6), a screen frame II (7), a guide rod (8) and a knob (9). The screen frame I (5) is fixed on the inner wall of the sliding frame (4). The screen frame II (7) is also slidably installed on the inner wall of the sliding frame (4). The screen frame II (7) slides and covers the screen frame I (5). The front part of the sliding frame (4) is rotatably installed with the screw rod (6). The rear part of the sliding frame (4) is rotatably installed with the guide rod (8) adapted to the screw rod (6). The screw rod (6) and the screen frame II (7) are threadedly connected. The guide rod (8) and the screen frame II (7) are slidably connected. A knob (9) is installed at one end of the screw rod (6).

2. The adjustable alloy powder vibration screening device according to claim 1, characterized in that: The screen materials of the screen frame I (5) and the screen frame II (7) are both made of corrosion-resistant and wear-resistant stainless steel, and the screen frame I (5) is a grid-shaped screen, and the screen frame II (7) is a long strip-shaped screen.

3. The adjustable alloy powder vibration screening device according to claim 2, characterized in that: It also includes an electric cam (10), which is rotatably mounted on one side of the inner wall of the frame (1), and the electric cam (10) is in contact with the mounting plate (41).

4. The adjustable alloy powder vibration screening device according to claim 3, characterized in that: The feed opening at the top of the frame (1) is funnel-shaped and tilted inwards. The feed opening of the frame (1) faces the inside of the sliding frame (4). Openings are provided on the upper parts of the left and right side walls of the frame (1).

5. The adjustable alloy powder vibration screening device according to claim 4, characterized in that: It also includes a sliding plate (11), which is symmetrically slidably installed on the upper part of the frame (1) through the through opening, and the lower end of the feed opening at the top of the frame (1) is in contact with the top surface of the sliding plate (11), and the sliding plate (11) is used to close the feed opening of the frame (1).

6. The adjustable alloy powder vibration screening device according to claim 5, characterized in that: The outer ends of the sliding plates (11) are each provided with a handle for easy pushing and pulling, and the sides of the sliding plates (11) are each provided with a sealing gasket.

7. The adjustable alloy powder vibration screening device according to claim 6, characterized in that: It also includes a baffle (12), the front side of the frame (1) is provided with an opening, the baffle (12) is rotatably mounted on the front side of the frame (1) through the opening, and a handle is provided on the baffle (12).

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