A vertical stirring device for mixing cemented carbide powder

Abstract

This utility model discloses a vertical mixing device for mixing cemented carbide powder, including a mixing hopper. Multiple hoppers are installed on the top of the mixing hopper. Individual cemented carbide powders are placed inside a designated hopper. Multiple cemented carbide powders are gradually conveyed into the mixing hopper through a conveying pipe. During this process, a drive assembly rotates a rotating drum, and the stirring blades on the drum mix the various cemented carbide powders, achieving gradual mixing, improving mixing quality and efficiency, and reducing mixing time. During the rotation of the drum, the drum can be repeatedly raised and lowered, which can drive pusher plates of different heights to lift cemented carbide powders of different depths, pushing the heavier cemented carbide powders at the bottom. With the assistance of the stirring blades, the mixing quality of cemented carbide powders of different weights can be improved.

Description

Technical Field

[0001] This utility model relates to the field of cemented carbide powder mixing technology, specifically a vertical stirring device for mixing cemented carbide powder. Background Technology

[0002] Carbide powder is typically composed of metals such as tungsten carbide and cobalt. It has high hardness, wear resistance, and high temperature resistance. It is commonly used in cutting tools, such as lathe tools, milling cutters, and drill bits, because these tools require high hardness and wear resistance. Carbide powder is also used to manufacture stamping dies and drawing dies, especially in applications requiring high precision and long service life. In addition, carbide powder is also used to manufacture wear-resistant coatings, which are applied to the surface of parts using thermal spraying technology to improve their performance.

[0003] In the existing technology, during the mixing process of cemented carbide powder, two or more powders are directly fed into the mixing hopper through a feeding funnel and then mixed under the stirring of a stirring component. However, because multiple cemented carbide powders are fed into the mixing hopper, there is obvious stratification of the powders in the mixing hopper. It takes a long time to mix the cemented carbide powders evenly, which is time-consuming. At the same time, because the different cemented carbide powders have different weights, during the stirring process, the heavier cemented carbide powders tend to be at the bottom of the mixture, and the lighter cemented carbide powders tend to be at the top of the mixture, so it is not necessary to ensure uniform mixing. Utility Model Content

[0004] The purpose of this invention is to provide a vertical stirring device for mixing cemented carbide powder, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a vertical stirring device for mixing hard alloy powder, comprising a stirring hopper, a hopper mounted on the top of the stirring hopper, multiple hoppers, a conveying pipe connected between the discharge position of the hopper and the top of the stirring hopper, a rotating drum mounted inside the stirring hopper, the rotating drum being rotatable and lifting, pusher plates and stirring blades being fixedly mounted in a ring array at equal intervals on the outer side of the rotating drum with the central axis of the rotating drum as the axis, the pusher plates being flat plates, the pusher plates and stirring blades being spaced apart, and a drive assembly for driving the rotating drum to rotate being fixedly mounted in the middle of the stirring hopper.

[0006] As a further preferred embodiment of this technical solution, the driving assembly includes a motor and a rotating rod. The motor is fixedly installed at the top center of the stirring hopper, and the rotating rod is fixedly installed through the top of the stirring hopper at the output end of the motor. Limiting blocks are symmetrically fixedly installed on the outer side of the rotating rod, and limiting grooves are symmetrically opened on the inner ring of the rotating drum. The limiting blocks are slidably connected to the limiting grooves.

[0007] As a further preferred embodiment of this technical solution, positioning rods are symmetrically fixedly installed on the outer side of the rotating drum, and an arc-shaped guide groove is opened on the inner ring of the stirring bucket corresponding to the position of the positioning rod. The arc-shaped guide groove is slidably connected to the positioning rod, and the arc-shaped guide groove is two symmetrical wave-shaped closed arcs.

[0008] As a further preferred embodiment of this technical solution, a pusher frame is symmetrically fixed between the bottom and top ends of the rotating rod, and the pusher frame is arranged in contact with the inner wall of the mixing hopper.

[0009] As a further preferred embodiment of this technical solution, the pusher plate has perforations at equal intervals in the middle.

[0010] As a further preferred embodiment of this technical solution, a sealing plate is slidably installed on the top of the mixing hopper, and a movable rod is fixedly installed on the top of the sealing plate. The movable rod passes through the mixing hopper, and the end of the sealing plate is set at the discharge position at the bottom of the conveying pipe.

[0011] As a further preferred embodiment of this technical solution, a discharge pipe is fixedly installed at the bottom end of the mixing hopper, and a valve is installed on the discharge pipe.

[0012] This utility model provides a vertical stirring device for mixing cemented carbide powder, which has the following beneficial effects: (1) This utility model places individual cemented carbide powder inside a designated hopper, pushes the moving rod to move the closing plate, and removes the closure of the material outlet of the conveying pipe by the closing plate. Multiple cemented carbide powders will be gradually conveyed to the mixing hopper through the conveying pipe. During this process, the rotating rod is driven by the motor to rotate. The mutual limiting of the limiting block and the limiting groove will drive the rotating drum to rotate synchronously. The stirring blades on the rotating drum will mix and stir multiple cemented carbide powders, realize the gradual mixing of multiple cemented carbide powders, improve the mixing quality and efficiency, and reduce the mixing time.

[0013] (2) In this utility model, as the rotating drum rotates, the positioning rod is continuously inside the arc-shaped guide groove. Since the arc-shaped guide groove is set as two symmetrical wave-shaped closed arcs, the relative height of the arc-shaped guide grooves at different positions is different. Therefore, the rotating drum can be driven to rise and fall repeatedly on the outside of the rotating rod. The pusher plates at different heights can be driven to lift the cemented carbide powders of different depths. The heavier cemented carbide powder at the bottom can be pushed. With the help of the stirring blades, the mixing quality of cemented carbide powders of different weights can be improved. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is one of the overall cross-sectional structural schematic diagrams of this utility model; Figure 3 This is the second schematic diagram of the overall cross-sectional structure of this utility model; Figure 4 This is a partial structural schematic diagram of the present invention; In the diagram: 1. Mixing bucket; 2. Hopper; 3. Conveying pipe; 4. Rotary drum; 5. Pusher plate; 6. Mixing blade; 7. Motor; 8. Rotating rod; 9. Limiting block; 10. Limiting groove; 11. Positioning rod; 12. Arc-shaped guide groove; 13. Pusher frame; 14. Perforation; 15. Sealing plate; 16. Moving rod; 17. Discharge pipe; 18. Valve. Detailed Implementation

[0015] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0016] This utility model provides a technical solution: such as Figures 1 to 4 As shown in this embodiment, a vertical stirring device for mixing cemented carbide powder includes a stirring hopper 1. A hopper 2 is mounted on the top of the stirring hopper 1. Multiple hoppers 2 are provided. A conveying pipe 3 connects the discharge position of the hopper 2 to the top of the stirring hopper 1. A rotating drum 4 is installed inside the stirring hopper 1. The rotating drum 4 is rotatable and can be raised and lowered. Pusher plates 5 and stirring blades 6 are fixedly mounted in a circular array at equal intervals around the central axis of the rotating drum 4. The pusher plates 5 are flat plates, and the pusher plates 5 and stirring blades 6 are spaced apart. A drive assembly for driving the rotating drum 4 to rotate is fixedly installed in the middle of the stirring hopper 1. Individual cemented carbide powder is placed... Placed inside a designated hopper 2, various cemented carbide powders are gradually conveyed to the mixing hopper 1 through the conveying pipe 3. During this process, the rotating drum 4 is driven by the drive component to rotate, and the stirring blades 6 on the rotating drum 4 will mix and stir the various cemented carbide powders, realizing the gradual mixing of various cemented carbide powders, improving the mixing quality and efficiency, and reducing the mixing time. During the rotation of the rotating drum 4, the rotating drum 4 is controlled to repeatedly rise and fall, which can drive the pusher plates 5 of different heights to lift the cemented carbide powders of different depths, and push the heavier cemented carbide powders at the bottom. With the cooperation of the stirring blades 6, the mixing quality of cemented carbide powders of different weights can be improved.

[0017] like Figures 1 to 4 As shown, the drive assembly includes a motor 7 and a rotating rod 8. The motor 7 is fixedly installed at the top center of the stirring bucket 1. The output end of the motor 7 passes through the top of the stirring bucket 1 and is fixedly installed with the rotating rod 8. Limiting blocks 9 are symmetrically fixedly installed on the outer side of the rotating rod 8. Limiting grooves 10 are symmetrically opened on the inner ring of the rotating drum 4. The limiting blocks 9 and the limiting grooves 10 are slidably connected.

[0018] The motor 7 drives the rotating rod 8 to rotate, and the mutual limiting of the limiting block 9 and the limiting groove 10 will drive the rotating drum 4 to rotate synchronously, and the rotating drum 4 can slide on the outside of the rotating rod 8.

[0019] like Figures 1 to 4 As shown, positioning rods 11 are symmetrically fixedly installed on the outer side of the rotating drum 4, and an arc-shaped guide groove 12 is opened on the inner ring of the stirring bucket 1 corresponding to the position of the positioning rods 11. The arc-shaped guide groove 12 is slidably connected to the positioning rods 11, and the arc-shaped guide groove 12 is two symmetrical wave-shaped closed arcs.

[0020] During the rotation of the rotating drum 4, since the positioning rod 11 is continuously inside the arc-shaped guide groove 12, and since the arc-shaped guide groove 12 is set as two symmetrical wave-shaped closed arcs, the relative height of the arc-shaped guide groove 12 at different positions is different, thus driving the rotating drum 4 to repeatedly rise and fall on the outside of the rotating rod 8.

[0021] like Figures 1 to 4 As shown, a pusher frame 13 is symmetrically fixed between the bottom and top ends of the rotating rod 8, and the pusher frame 13 is arranged in contact with the inner wall of the mixing bucket 1.

[0022] During the mixing process of the cemented carbide powder inside the mixing hopper 1, the rotation of the rotating rod 8 can drive the pusher frame 13 to rotate, which can push the cemented carbide powder located on the inner wall of the mixing hopper 1, preventing the cemented carbide powder from stagnating on the inner wall of the mixing hopper 1 for a long time and affecting the mixing quality.

[0023] like Figures 1 to 4 As shown, the pusher plate 5 has through holes 14 at equal intervals in the middle.

[0024] When the pusher plate 5 lifts the cemented carbide powders of different depths, the perforation 14 can be used to allow the cemented carbide powder to pass through, preventing the pusher plate 5 from lifting too much cemented carbide powder and causing the pusher plate 5 to break.

[0025] like Figures 1 to 4 As shown, a sealing plate 15 is slidably installed on the top of the mixing hopper 1, and a moving rod 16 is fixedly installed on the top of the sealing plate 15. The moving rod 16 passes through the mixing hopper 1, and the end of the sealing plate 15 is set at the discharge position at the bottom of the conveying pipe 3.

[0026] Pushing the moving rod 16 moves the closing plate 15, canceling the sealing of the material outlet of the conveying pipe 3 by the closing plate 15, and controlling the conveying of various hard alloy powders through the conveying pipe 3 to the inside of the mixing bucket 1.

[0027] like Figures 1 to 4 As shown, a discharge pipe 17 is fixedly installed at the bottom of the mixing bucket 1, and a valve 18 is installed on the discharge pipe 17.

[0028] After the mixing is complete, valve 18 is opened, and the mixed cemented carbide powder can be discharged through discharge pipe 17.

[0029] This utility model provides a vertical stirring device for mixing cemented carbide powder, and its specific working principle is as follows: In operation, individual cemented carbide powders are placed inside a designated hopper 2. The moving rod 16 is pushed, causing the closing plate 15 to move, thus removing the closure of the discharge position of the conveying pipe 3. Multiple cemented carbide powders are then gradually conveyed through the conveying pipe 3 into the mixing hopper 1. During this process, the motor 7 drives the rotating rod 8 to rotate. The mutual limiting of the limiting block 9 and the limiting groove 10 causes the rotating drum 4 to rotate synchronously. The stirring blades 6 on the rotating drum 4 mix and stir the multiple cemented carbide powders, achieving gradual mixing and improving the quality of the mixture. The quantity and efficiency are improved, and the mixing time is reduced. During the rotation of the drum 4, the positioning rod 11 is continuously inside the arc-shaped guide groove 12. Since the arc-shaped guide groove 12 is set as two symmetrical wave-shaped closed arcs, the relative height of the arc-shaped guide groove 12 at different positions is different. Therefore, the drum 4 can be driven to repeatedly rise and fall outside the rotating rod 8. The pusher plates 5 at different heights can be driven to lift the cemented carbide powders of different depths. The heavier cemented carbide powder at the bottom can be pushed. With the help of the stirring blade 6, the mixing quality of cemented carbide powders of different weights can be improved.

[0030] 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 vertical stirring device for mixing cemented carbide powder, comprising a stirring hopper (1), characterized in that: The top of the mixing hopper (1) is equipped with a hopper (2), and there are multiple hoppers (2). A conveying pipe (3) is installed between the discharge position of the hopper (2) and the top of the mixing hopper (1). A rotating drum (4) is installed inside the mixing hopper (1). The rotating drum (4) can rotate and rise. Pusher plates (5) and stirring blades (6) are fixedly installed in a ring array on the outer side of the rotating drum (4) at equal intervals and with the central axis of the rotating drum (4) as the axis. The pusher plate (5) is a flat plate. The pusher plate (5) and the stirring blades (6) are spaced apart. A drive assembly for driving the rotating drum (4) to rotate is fixedly installed in the middle of the mixing hopper (1).

2. The vertical stirring device for mixing cemented carbide powder according to claim 1, characterized in that: The drive assembly includes a motor (7) and a rotating rod (8). The motor (7) is fixedly installed at the top center of the stirring bucket (1). The output end of the motor (7) passes through the top of the stirring bucket (1) and is fixedly installed with the rotating rod (8). Limiting blocks (9) are symmetrically fixedly installed on the outer side of the rotating rod (8). Limiting grooves (10) are symmetrically opened on the inner ring of the rotating drum (4). The limiting blocks (9) and the limiting grooves (10) are slidably connected.

3. The vertical stirring device for mixing cemented carbide powder according to claim 2, characterized in that: The outer side of the rotating drum (4) is symmetrically fixed with positioning rods (11), and the inner ring of the stirring bucket (1) is provided with an arc-shaped guide groove (12) corresponding to the position of the positioning rod (11). The arc-shaped guide groove (12) is slidably connected to the positioning rod (11), and the arc-shaped guide groove (12) is two symmetrical wave-shaped closed arcs.

4. The vertical stirring device for mixing cemented carbide powder according to claim 2, characterized in that: A pusher frame (13) is symmetrically fixed between the bottom and top ends of the rotating rod (8), and the pusher frame (13) is in contact with the inner wall of the mixing bucket (1).

5. A vertical stirring device for mixing cemented carbide powder according to claim 1, characterized in that: The pusher plate (5) has perforations (14) at equal intervals in the middle.

6. The vertical stirring device for mixing cemented carbide powder according to claim 4, characterized in that: A sealing plate (15) is slidably installed on the top of the mixing hopper (1), and a moving rod (16) is fixedly installed on the top of the sealing plate (15). The moving rod (16) passes through the mixing hopper (1), and the end of the sealing plate (15) is set at the discharge position at the bottom of the conveying pipe (3).

7. A vertical stirring device for mixing cemented carbide powder according to claim 6, characterized in that: The bottom end of the mixing bucket (1) is fixedly installed with a discharge pipe (17), and a valve (18) is installed on the discharge pipe (17).

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