Classified screening device for iron-based powder production

Abstract

The utility model relates to a grading screening device for iron-based powder production, which comprises a base, a plurality of groups of support springs are arranged at the top of the base, a screening box body is arranged at the tops of the plurality of groups of support springs, a plurality of groups of primary screening components are arranged in the screening box body, and a group of fine screening components are arranged below the plurality of groups of primary screening components. Under the action of the primary screening assemblies and the fine screening assembly, particles in iron-based powder can be subjected to multi-stage screening according to the size of the diameter, under the action of the reverse scraping assemblies, the particles in the iron-based powder can be subjected to multi-stage screening according to the size of the diameter, and the particles in the iron-based powder can be subjected to multi-stage screening according to the size of the diameter. And iron-based powder can be driven to be screened for multiple times on each layer of screen, so that screening of the iron-based powder is more uniform.

Description

Technical Field

[0001] The utility model relates to the technical field of metal powder screening devices, in particular to a grading screening device for iron-based powder production. Background Art

[0002] The process of dividing bulk materials into different particle sizes through one or several layers of screens is called screening. The screening device utilizes the relative movement between the bulk material and the screen surface to allow some particles to pass through the screen holes, and is a vibrating screening mechanical equipment that divides materials such as sand, gravel, and crushed stone into different grades according to particle size. The screening device is generally driven by a motor for screening. In the production process of iron-based powder, a screening device is usually used to screen and collect particles of different diameters in the iron-based powder.

[0003] However, when existing screening devices screen iron-based powders, they usually use a one-time screening method, which results in uneven particle sizes at each screening stage, affecting product quality.

[0004] Therefore, it is now urgent to design a grading and screening device for iron-based powder production that can solve the above problems. Utility Model Content

[0005] In order to solve the problems existing in the prior art, the utility model provides a grading and screening device for producing iron-based powder.

[0006] The technical solution adopted by the utility model to achieve the above-mentioned purpose is: a grading screening device for iron-based powder production, comprising a base, a plurality of groups of supporting springs are arranged on the top of the base, a screening box is arranged on the top of the plurality of supporting springs, a plurality of groups of primary screening components are arranged inside the screening box, a group of fine screening components are arranged below the plurality of groups of primary screening components, and a group of reverse scraping components are arranged above each group of the primary screening components;

[0007] Among them, each group of the primary screening components includes a screen and a primary screening guide hopper. The screen is arranged inside the screening box, the screen is inclined, and the primary screening guide hopper is arranged on the outer wall of the screening box. The screening box has multiple groups of primary screening holes on one side close to the primary screening guide hopper.

[0008] Preferably, the fine screen assembly includes a fine screen plate and a fine screen guide hopper, the fine screen plate is obliquely arranged inside the screening box, the fine screen plate is located below multiple groups of primary screening assemblies, and the fine screen guide hopper is arranged on the outer wall of the screening box.

[0009] Preferably, a group of motor seats are arranged on the side walls of the screening box, a group of drive motors are arranged on the top of the motor seats, and a group of eccentric vibration wheels are sleeved on the output shafts of the drive motors.

[0010] Preferably, each group of the reverse scraping components includes a screw slide, a sliding frame and a scraper. The screw slide is tilted inside the screening box, the inclination angle of the screw slide is the same as the inclination angle of the screen, the sliding frame is arranged at the bottom of the slider of the screw slide, the sliding frame is slidably connected to the slider of the screw slide, the scraper is arranged at the bottom of the sliding frame, and the scraper cooperates with the screen structure.

[0011] Preferably, each group of the reverse scraping assemblies also includes two groups of sliding guide rods, and the two groups of sliding guide rods are respectively arranged on the side walls of the sliding frame. A plurality of groups of arc-shaped sliding grooves are opened on the screening box body, and each group of the arc-shaped sliding grooves corresponds to two groups of sliding guide rods, and every two groups of sliding guide rods are slidably matched with the corresponding arc-shaped sliding grooves.

[0012] Preferably, the top of the screening box is provided with an opening communicating with the interior of the screening box.

[0013] The beneficial effects of the utility model are:

[0014] Firstly, under the action of the primary screening component and the fine screening component, the utility model can perform multi-stage screening of particles in the iron-based powder according to the size of the diameter. Specifically, the user pours the iron-based powder into the device, starts the driving motor, and drives the eccentric vibration wheel to rotate. Since multiple groups of supporting springs are arranged at the bottom of the screening box, the screening box will vibrate, thereby driving the iron-based powder to perform vibration screening. Large particles in the iron-based powder will be blocked by the screens when passing through multiple groups of screens, and particles that cannot enter the next layer of screens will be discharged and collected from multiple groups of primary screening guide hoppers, thereby realizing multi-stage screening of the iron-based powder.

[0015] Secondly, under the action of the reverse scraping component, the utility model can drive the iron-based powder to be screened multiple times on each layer of the screen, so that the screening of the iron-based powder is more uniform. Specifically, when the screw slide drives the sliding frame to move, the sliding frame will move along the arc-shaped sliding groove. When the sliding frame drives the scraper at the bottom of the sliding frame to approach multiple groups of primary screening holes, the sliding frame will drive the scraper to move upward under the action of the arc-shaped sliding groove to prevent the scraper from blocking the primary screening holes. When the sliding frame moves in the direction away from the primary screening holes, it will drive the scraper to move downward, so that the scraper fits the screen and scrapes the accumulated iron-based powder upward, so that the iron-based powder can be screened multiple times on each layer of the screen. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0017] Figure 2 It is a partial structural schematic diagram of the utility model;

[0018] Figure 3 It is a structural schematic diagram of the reverse scraping component in the utility model;

[0019] Figure 4 for Figure 3 Enlarged view of point A in the middle.

[0020] Figure numerals: 1. base; 2. support spring; 3. screening box; 4. primary screening guide hopper; 6. fine screening guide hopper; 7. screen; 9. fine screen plate; 11. primary screening hole; 13. screw slide; 14. arc-shaped sliding groove; 15. scraper; 16. sliding guide rod; 17. sliding frame; 18. motor seat; 19. driving motor; 20. eccentric vibration wheel; 21. opening. DETAILED DESCRIPTION

[0021] In order to make the above-mentioned purposes, features and advantages of the utility model more understandable, the specific implementation methods of the utility model are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the utility model. However, the utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the utility model, so the utility model is not limited by the specific embodiments disclosed below.

[0022] like Figure 1-4 As shown, the utility model provides a grading screening device for iron-based powder production, comprising a base 1, a plurality of groups of supporting springs 2 are arranged on the top of the base 1, a screening box 3 is arranged on the top of the plurality of supporting springs 2, a plurality of groups of primary screening components are arranged inside the screening box 3, a group of fine screening components are arranged below the plurality of groups of primary screening components, and a group of reverse scraping components are arranged above each group of primary screening components;

[0023] Among them, each group of primary screening components includes a screen 7 and a primary screening hopper 4. The screen 7 is arranged inside the screening box 3, and the screen 7 is inclined. The primary screening hopper 4 is arranged on the outer wall of the screening box 3. A plurality of groups of primary screening holes 11 are provided on one side of the screening box 3 close to the primary screening hopper 4. The primary screening component can perform multi-stage screening on the particles in the iron-based powder according to the size of the diameter. The density of the screen 7 can be adjusted according to production needs. The fine screening component can guide and collect particles with smaller diameters in the iron-based powder.

[0024] Furthermore, in the above technical scheme, the fine screen assembly includes a fine screen plate 9 and a fine screen guide hopper 6, the fine screen plate 9 is tiltedly arranged inside the screening box 3, the fine screen plate 9 is located below the multiple groups of primary screening assemblies, the fine screen guide hopper 6 is arranged on the outer wall of the screening box 3, a group of motor seats 18 are arranged on the side walls of the screening box 3, a group of drive motors 19 are arranged on the top of the motor seats 18, and a group of eccentric vibration wheels 20 are sleeved on the output shaft of the drive motor 19; the user pours the iron-based powder into the device, the drive motor 19 is started, and the eccentric vibration wheel 20 is driven to rotate. Since the bottom of the screening box 3 is provided with multiple groups of supporting springs 2, the screening box 3 will vibrate, thereby driving the iron-based powder to vibrate and screen, and the large particles in the iron-based powder will be blocked by the screen 7 when passing through the multiple groups of screens 7, and the particles that cannot enter the next layer of screens 7 will be discharged and collected from the multiple groups of primary screening guide hoppers 4.

[0025] Furthermore, in the above technical scheme, each group of reverse scraping components includes a screw slide 13, a sliding frame 17 and a scraper 15. The screw slide 13 is tilted inside the screening box 3, and the inclination angle of the screw slide 13 is the same as the inclination angle of the screen 7. The sliding frame 17 is arranged at the bottom of the slider of the screw slide 13, and the sliding frame 17 is slidably connected to the slider of the screw slide 13. The scraper 15 is arranged at the bottom of the sliding frame 17, and the scraper 15 cooperates with the screen 7 structure; the function of the screw slide 13 is to drive the sliding frame 17 to reciprocate along the direction of the screw slide 13, and then the scraper 15 is driven by the sliding frame 17 to move, so as to scrape the iron-based powder deposited in the primary screening hole 11 upward, so that the iron-based powder can be screened multiple times on each layer of the screen 7, which can not only prevent the primary screening hole 11 from being blocked, but also make the screening of the iron-based powder more uniform.

[0026] Further, in the above technical solution, each set of reverse scraping components also includes two sets of sliding guide rods 16, and the two sets of sliding guide rods 16 are respectively arranged on the side walls of the sliding frame 17. A plurality of sets of arc-shaped sliding grooves 14 are provided on the screening box 3, and each set of arc-shaped sliding grooves 14 corresponds to the two sets of sliding guide rods 16. Each two sets of sliding guide rods 16 are slidably matched with the corresponding arc-shaped sliding grooves 14. The top of the screening box 3 is provided with an opening 21 connected to the inside of the screening box 3; when the screw slide 13 drives the sliding frame 17 to move, the sliding frame 1 7 will move along the arc-shaped sliding groove 14. When the sliding frame 17 drives the scraper 15 at the bottom of the sliding frame 17 to approach multiple groups of primary screening holes 11, the sliding frame 17 will drive the scraper 15 to move upward under the action of the arc-shaped sliding groove 14 to prevent the scraper 15 from blocking the primary screening holes 11. When the sliding frame 17 moves in a direction away from the primary screening holes 11, it will drive the scraper 15 to move downward, so that the scraper 15 fits with the screen 7, and scrapes the accumulated iron-based powder upward, so that the iron-based powder can be screened multiple times on each layer of the screen 7.

[0027] Working principle: the user pours the iron-based powder into the device, the driving motor 19 is started, and the eccentric vibration wheel 20 is driven to rotate. Since multiple groups of supporting springs 2 are arranged at the bottom of the screening box 3, the screening box 3 will vibrate, thereby driving the iron-based powder to be vibrated and screened. The large particles in the iron-based powder will be blocked by the screen 7 when passing through the multiple groups of screens 7, and the particles that cannot enter the next layer of screens 7 will be discharged and collected from the multiple groups of primary screening hoppers 4. The primary screening component can perform multi-stage screening on the particles in the iron-based powder according to the size of the diameter. The density of the screen 7 can be adjusted according to production needs. The fine screen component can discharge and collect particles with smaller diameters in the iron-based powder.

[0028] When the screw slide 13 drives the sliding frame 17 to move, the sliding frame 17 will move along the arc-shaped sliding groove 14. When the sliding frame 17 drives the scraper 15 at the bottom of the sliding frame 17 to approach multiple groups of primary screening holes 11, the sliding frame 17 will drive the scraper 15 to move upward under the action of the arc-shaped sliding groove 14 to prevent the scraper 15 from blocking the primary screening holes 11. When the sliding frame 17 moves in a direction away from the primary screening holes 11, it will drive the scraper 15 to move downward, so that the scraper 15 fits against the screen 7, scraping the accumulated iron-based powder upward, so that the iron-based powder can be screened multiple times on each layer of the screen 7.

[0029] The above embodiment only expresses one implementation method of the utility model, and its description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A grading and screening device for producing iron-based powders, comprising a base (1), characterized in that: A plurality of groups of supporting springs (2) are arranged on the top of the base (1), a screening box (3) is arranged on the top of the plurality of groups of supporting springs (2), a plurality of groups of primary screening components are arranged inside the screening box (3), a group of fine screening components is arranged below the plurality of groups of primary screening components, and a group of reverse scraping components is arranged above each group of the primary screening components; Each group of the primary screening components comprises a screen (7) and a primary screening guide hopper (4); the screen (7) is arranged inside the screening box (3); the screen (7) is arranged at an angle; the primary screening guide hopper (4) is arranged on the outer wall of the screening box (3); and a plurality of groups of primary screening holes (11) are provided on a side of the screening box (3) close to the primary screening guide hopper (4).

2. The grading and screening device for producing iron-based powder according to claim 1, characterized in that: The fine screen assembly comprises a fine screen plate (9) and a fine screen guide hopper (6); the fine screen plate (9) is arranged obliquely inside the screening box (3); the fine screen plate (9) is located below a plurality of groups of primary screening assemblies; and the fine screen guide hopper (6) is arranged on the outer wall of the screening box (3).

3. The grading and screening device for producing iron-based powder according to claim 2, characterized in that: A group of motor seats (18) are arranged on the side wall of the screening box (3), a group of driving motors (19) are arranged on the top of the motor seats (18), and a group of eccentric vibration wheels (20) are sleeved on the output shaft of the driving motor (19).

4. The grading and screening device for producing iron-based powder according to claim 3, characterized in that: Each group of the reverse scraping components comprises a screw slide (13), a sliding frame (17) and a scraper (15); the screw slide (13) is tiltedly arranged inside the screening box (3); the tilt angle of the screw slide (13) is the same as the tilt angle of the screen (7); the sliding frame (17) is arranged at the bottom of the slider of the screw slide (13); the sliding frame (17) is slidably connected to the slider of the screw slide (13); the scraper (15) is arranged at the bottom of the sliding frame (17); and the scraper (15) cooperates with the screen (7) structure.

5. The grading and screening device for producing iron-based powder according to claim 4, characterized in that: Each group of the reverse scraping components further comprises two groups of sliding guide rods (16), the two groups of sliding guide rods (16) are respectively arranged on the side walls of the sliding frame (17), and the screening box (3) is provided with a plurality of groups of arc-shaped sliding grooves (14), each group of the arc-shaped sliding grooves (14) corresponds to the two groups of sliding guide rods (16), and each two groups of sliding guide rods (16) are slidably matched with the corresponding arc-shaped sliding grooves (14).

6. A grading and screening device for producing iron-based powder according to any one of claims 1 to 5, characterized in that: The top of the screening box (3) is provided with an opening (21) which is in communication with the interior of the screening box (3).

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