Metal powder mixing machine for diamond roller production

Abstract

The utility model belongs to powder mixing technical field especially is a kind of metal powder mixing machine for diamond roller shaft production, including bearing base, the bearing base top is equipped with mixing cylinder, the centre pivot is rotationally arranged in the mixing cylinder inside, the centre pivot both sides outer wall are equipped with synchronous bar, the centre pivot outside is equipped with several helical stirring rods of different diameters, the mixing cylinder inside is equipped with two rotating airflow rings, the rotating airflow ring outer diameter with the mixing cylinder inner diameter correspond;Make the continuous helical airflow in mixing cylinder, to improve the flowability of powder in cylinder, and the rotating airflow ring of both sides setting makes airflow can flow oppositely, to break the agglomerate state of metal powder by convection, reduce the accumulation of metal powder condition, and can remove the powder attached to the inner wall of mixing cylinder in real time, reach the purpose of improving the stirring uniformity of metal powder in each position in mixing cylinder.

Description

Technical Field

[0001] This utility model belongs to the field of powder mixing technology, specifically relating to a metal powder mixer for diamond roller production. Background Technology

[0002] In the manufacturing process of diamond rollers, the uniformity of metal powder mixing directly determines the quality of subsequent forming, sintering and other processes, which in turn has a key impact on the final mechanical properties, structural stability and service life of the diamond rollers. In actual operation, the metal powders used in the production of diamond rollers, such as tungsten powder, cobalt powder, and iron powder, usually have a fine particle size. During the operation of the mixer, the powder particles are easily attached to the inner wall surface of the mixing drum due to electrostatic adsorption and other effects. In addition, the metal powder has poor fluidity in the mixing drum. During the mixing process, the metal powder is prone to accumulate in areas such as the bottom of the drum and the corners of the drum wall, resulting in local deposition. This leads to differences in the degree of powder mixing in different locations within the mixing drum. Utility Model Content

[0003] To address the above problems, the purpose of this utility model is to provide a metal powder mixer for diamond roller production, which solves the problems caused by metal powder adhering to the inner wall of the cylinder during mixing and the poor flowability of the metal powder.

[0004] To achieve the above objectives, a metal powder mixer for diamond roller production includes a support base, a mixing cylinder mounted on the top of the support base, a central rotating shaft rotatably mounted inside the mixing cylinder, synchronization rods mounted on both outer walls of the central rotating shaft, several spiral stirring rods of different diameters mounted on the outer side of the central rotating shaft, two rotating airflow rings inside the mixing cylinder with outer diameters corresponding to the inner diameter of the mixing cylinder, the two rotating airflow rings respectively mounted on the outer walls of the synchronization rods on both sides of the central rotating shaft, several evenly distributed scrapers mounted between the two rotating airflow rings, and several exhaust ports opened on corresponding sides of the two rotating airflow rings.

[0005] Preferably, the two rotating airflow rings are respectively disposed on both sides inside the mixing cylinder.

[0006] Preferably, a feed inlet is installed at the top of the mixing cylinder, and a discharge port is installed at the center of the bottom of the mixing cylinder.

[0007] Preferably, two air delivery chambers are installed on the outer wall of the mixing cylinder, and the positions of the two air delivery chambers correspond to the two rotating airflow rings, respectively.

[0008] Preferably, a connecting pipe is installed on the side of the gas delivery chamber facing the mixing cylinder, and the connecting pipe passes through the mixing cylinder.

[0009] Preferably, the outer wall of the rotating airflow ring is provided with a clearance groove, and the connecting pipe slides on the inner side of the rotating airflow ring through the clearance groove.

[0010] Preferably, a gas supply pipe is installed between the two gas supply chambers.

[0011] The utility model has the following beneficial effects: By cooperating with components such as the synchronizing rod and the rotating airflow ring, a continuous spiral airflow is formed inside the mixing cylinder to improve the fluidity of the powder inside the cylinder. The rotating airflow rings on both sides allow the airflow to flow in opposite directions, thereby breaking the agglomeration of the metal powder through convection, reducing the accumulation of metal powder, and removing the powder adhering to the inner wall of the mixing cylinder in real time, thus achieving the purpose of improving the mixing uniformity of metal powder in all positions inside the mixing cylinder. Attached Figure Description

[0012] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a cross-sectional structural diagram of the support base in this utility model; Figure 3 This is a three-dimensional structural diagram of the central rotating shaft, rotating airflow ring, and air delivery chamber in this utility model; Figure 4 This is a cross-sectional structural diagram of the rotating airflow ring and air delivery chamber in this utility model; Figure 5 for Figure 4 Enlarged diagram of point A in the middle.

[0013] In the diagram: 1. Support base; 2. Mixing cylinder; 21. Feed inlet; 22. Discharge port; 3. Central rotating shaft; 31. Synchronizing rod; 32. Spiral stirring rod; 4. Rotating airflow ring; 41. Scraper; 42. Exhaust port; 43. Clearing ring groove; 5. Air supply chamber; 51. Connecting pipe; 52. Air delivery pipe. Detailed Implementation

[0014] To enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be described in detail below with reference to the accompanying drawings. The description in this part is only exemplary and explanatory, and should not be used to limit the scope of protection of the present invention in any way.

[0015] Example: Figure 1As shown in Figure 5: A metal powder mixer for diamond roller production includes a support base 1, a mixing cylinder 2 mounted on the top of the support base 1, a central rotating shaft 3 rotatably mounted inside the mixing cylinder 2, synchronization rods 31 mounted on both outer walls of the central rotating shaft 3, and several spiral stirring rods 32 of different diameters mounted on the outer side of the central rotating shaft 3. Two rotating airflow rings 4 are arranged inside the mixing cylinder 2, with the outer diameter of the rotating airflow rings 4 corresponding to the inner diameter of the mixing cylinder 2. The two rotating airflow rings 4 are respectively mounted on the outer walls of the synchronization rods 31 on both sides of the central rotating shaft 3. Several evenly distributed scrapers 41 are installed between the two rotating airflow rings 4, and several exhaust ports 42 are opened on the corresponding side of the two rotating airflow rings 4.

[0016] The support base 1 is used to securely install various components, providing stable support for the mixing operation. The mixing cylinder 2, mounted on top of the support base 1, is used to mix the metal powder. A central rotating shaft 3 is rotatably mounted inside the mixing cylinder 2, and a spiral stirring rod 32 is mounted on the outside of the central rotating shaft 3. Driven by an externally mounted motor, the central rotating shaft 3 can rotate inside the mixing cylinder 2, synchronously driving the spiral stirring rod 32. This allows the spiral stirring rod 32 to stir and mix the metal powder located inside the mixing cylinder 2. The presence of multiple spiral stirring rods 32 with varying diameters increases the stirring range of the spiral stirring rod 32, improving the mixing effect. These spiral stirring rods 32 are mounted on the outer wall of the central rotating shaft 3 via connecting rods, ensuring stable rotation of the spiral stirring rods 32 by the central rotating shaft 3. Two rotating airflow rings 4 are installed inside the mixing cylinder 2, and both rotating airflow rings 4 are mounted on the outside of the central rotating shaft 3 via synchronizing rods 31, so that the rotation of the central rotating shaft 3 synchronously drives the rotating airflow rings 4. The mixing cylinder 2 is equipped with several evenly spaced scrapers 41 between the two rotating airflow rings 4. When the rotating airflow rings 4 rotate with the central shaft 3, they drive the scrapers 41 to move synchronously. One side of the scraper 41 is in close contact with the inner wall of the mixing cylinder 2, so that the scraper 41 continuously scrapes the metal powder adhering to the inner wall of the mixing cylinder 2 during rotation, avoiding the situation where a large amount of metal powder adheres to the inner wall of the mixing cylinder 2 and causes uneven mixing. Several exhaust ports 42 are opened on the corresponding side of the two rotating airflow rings 4 to discharge the airflow inside the rotating airflow rings 4, so that the two rotating airflow rings 4 will spray airflow relative to each other, thereby making the metal powder inside the mixing cylinder 2 flow. The airflow on both sides will collide, thereby breaking up the originally agglomerated metal powder and preventing the metal powder from accumulating. When the airflow is discharged through the exhaust ports 42, the rotating airflow rings 4 will continue to rotate, so that the airflow will be discharged in a spiral state, thereby blowing the metal powder in all positions, improving the fluidity of the metal powder, and achieving the purpose of improving the mixing effect of the metal powder.

[0017] Two rotating airflow rings 4 are respectively disposed on both sides inside the mixing cylinder 2. When the airflow inside the rotating airflow rings 4 is discharged through the exhaust port 42, it can blow the metal powder located on both sides inside the mixing cylinder 2 toward the center position, so that the metal powder moves with the airflow inside the mixing cylinder 2 and the metal powder on both sides collides and contacts each other during movement. This, together with the stirring of the spiral stirring rod 32, achieves the purpose of improving the uniformity of metal powder mixing at all positions inside the mixing cylinder 2.

[0018] A feed inlet 21 is installed at the top of the mixing cylinder 2, and a discharge port 22 is installed at the center of the bottom of the mixing cylinder 2. The feed inlet 21 at the top of the mixing cylinder 2 is used to introduce the metal powder to be mixed into the mixing cylinder 2, so that the metal powder is mixed by components such as the spiral stirring rod 32. The discharge port 22 at the center of the bottom of the mixing cylinder 2 is used to discharge the mixed metal powder inside the mixing cylinder 2. After the mixing operation, the operator can connect the conveying pipe to the discharge port 22 so that the metal powder inside the mixing cylinder 2 can be transported to a suitable position through the pipe. The airflow discharged by the two rotating airflow rings 4 will continuously compress the metal powder toward the center of the mixing cylinder 2, so that the metal powder can be discharged through the discharge port 22.

[0019] Two air supply chambers 5 are installed on the outer wall of the mixing cylinder 2. The positions of the two air supply chambers 5 correspond to the two rotating airflow rings 4 respectively. A connecting pipe 51 is installed on the side of the air supply chamber 5 facing the mixing cylinder 2. The connecting pipe 51 passes through the mixing cylinder 2. An air delivery pipe 52 is installed between the two air supply chambers 5. The two air supply chambers 5 installed on the outer wall of the mixing cylinder 2 are used to guide the airflow into the interior of the rotating airflow ring 4. A fan is installed on the bottom inner side of the support base 1, and the output end of the fan is connected to the air delivery pipe 52. After the airflow enters the interior of the air delivery pipe 52, it will be transported to the interior of the air supply chamber 5 through the air delivery pipe 52. Then the airflow will enter the interior of the rotating airflow ring 4 through the connecting pipe 51 and finally be discharged through the exhaust port 42.

[0020] The outer wall of the rotating airflow ring 4 is provided with a clearance groove 43, and the connecting pipe 51 slides on the inner side of the rotating airflow ring 4 through the clearance groove 43. The clearance groove 43 on the outer wall of the rotating airflow ring 4 is used to make room for the connecting pipe 51. Since the rotating airflow ring 4 will rotate inside the mixing cylinder 2, the rotating airflow ring 4 will move relative to the connecting pipe 51. Since the connecting pipe 51 is located at the corresponding position of the clearance groove 43, the connecting pipe 51 will not obstruct the rotating airflow ring 4 when the rotating airflow ring 4 rotates. Moreover, the airflow inside the connecting pipe 51 can be continuously input into the rotating airflow ring 4 and then discharged through the exhaust port 42 to achieve the purpose of driving the metal powder to flow.

[0021] The working principle of this utility model is as follows: During use, the operator can introduce metal powder into the mixing cylinder 2 through the feed inlet 21. Then, the operator can start the motors installed on both sides of the mixing cylinder 2, causing the central rotating shaft 3 to rotate inside the mixing cylinder 2. The rotation of the central rotating shaft 3 drives the spiral stirring rod 32 to move synchronously, mixing the metal powder. Simultaneously, the rotation of the central rotating shaft 3 drives the rotating airflow ring 4 to move synchronously via the synchronizing rod 31. The rotating airflow ring 4, in its movement, drives the scraper 41 to move. One side of the scraper 41 is in close contact with the inner wall of the mixing cylinder 2, continuously scraping away the powder adhering to the inner wall of the mixing cylinder 2. Furthermore, during the mixing process, the motors installed on both sides of the mixing cylinder 2... The fan on the inner side of the bottom of the support base 1 continuously outputs airflow to the air supply pipe 52, and the air supply pipe 52 guides the airflow into the air supply chamber 5. The airflow entering the air supply chamber 5 enters the rotating airflow ring 4 through the connecting pipe 51, and is finally discharged through the exhaust port 42. Since there are two rotating airflow rings 4, which are respectively set on both sides inside the mixing cylinder 2, and the exhaust ports 42 of the two rotating airflow rings 4 are symmetrically arranged, the airflow blows from both sides inside the mixing cylinder 2 towards the center. The airflow drives the metal powder to move, causing the metal powder to flow, thereby promoting the contact and mixing of the metal powder with each other. With the continuous stirring of the spiral stirring rod 32, the purpose of improving the mixing effect of the metal powder is achieved.

[0022] It should be noted that, in this document, 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.

[0023] This article uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only for the purpose of helping to understand the method and core ideas of the present invention. The above descriptions are only preferred embodiments of the present invention. It should be noted that due to the limitations of textual expression, there are objectively infinite specific structures. For those skilled in the art, several improvements, modifications, or changes can be made without departing from the principles of the present invention, and the above technical features can also be combined in an appropriate manner. These improvements, modifications, changes, or combinations, or the direct application of the inventive concept and technical solution to other situations without modification, should all be considered within the scope of protection of the present invention.

Claims

1. A metal powder mixing machine for diamond roller production, comprising a bearing base (1), a mixing cylinder (2) is installed on the top of the bearing base (1), characterized in that: The mixing cylinder (2) is equipped with a central rotating shaft (3) inside. Synchronizing rods (31) are installed on both outer walls of the central rotating shaft (3). Several spiral stirring rods (32) with different diameters are installed on the outer side of the central rotating shaft (3). Two rotating airflow rings (4) are installed inside the mixing cylinder (2). The outer diameter of the rotating airflow rings (4) corresponds to the inner diameter of the mixing cylinder (2). The two rotating airflow rings (4) are respectively installed on the outer walls of the synchronizing rods (31) on both sides of the central rotating shaft (3). Several evenly distributed scrapers (41) are installed between the two rotating airflow rings (4). Several exhaust ports (42) are opened on the corresponding side of the two rotating airflow rings (4).

2. The metal powder mixing machine for producing a diamond roller according to claim 1, characterized in that: The two rotating airflow rings (4) are respectively disposed on both sides inside the mixing cylinder (2).

3. The metal powder mixing machine for producing a diamond roller according to claim 1, characterized in that: The mixing cylinder (2) has a feed inlet (21) installed at the top and a discharge port (22) installed at the center of the bottom end.

4. The metal powder mixing machine for producing a diamond roller according to claim 1, characterized in that: The mixing cylinder (2) has two air delivery chambers (5) installed on its outer wall. The positions of the two air delivery chambers (5) correspond to the two rotating airflow rings (4) respectively.

5. The metal powder mixing machine for producing a diamond roller according to claim 4, characterized in that: The gas delivery chamber (5) is equipped with a connecting pipe (51) on the side facing the mixing cylinder (2), and the connecting pipe (51) passes through the mixing cylinder (2).

6. The metal powder mixing machine for producing a diamond roller according to claim 5, characterized in that: The outer wall of the rotating airflow ring (4) is provided with a clearance ring groove (43), and the connecting pipe (51) slides on the inner side of the rotating airflow ring (4) through the clearance ring groove (43).

7. The metal powder mixing machine for producing a diamond roller according to claim 6, characterized in that: A gas delivery pipe (52) is installed between the two gas delivery chambers (5).

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