A copper powder particle size control device

Abstract

This utility model relates to a copper powder particle size control device, belonging to the field of copper powder screening technology. It includes a frame and an airflow screen body mounted on the frame. The bottom of the airflow screen body is respectively provided with a fine powder discharge hopper and a coarse powder discharge hopper. A fine powder collection box is located below the fine powder discharge hopper, and a collection component is located below the coarse powder discharge hopper. The collection component includes a screening box located inside the frame. A fine powder discharge frame is inclinedly arranged on the side of the screening box near the fine powder collection box. A movable frame is slidably installed inside the screening box, and a screening mechanism is arranged outside the movable frame. This copper powder particle size control device, with the cooperation of the collection component and the screening mechanism, achieves secondary screening of fine materials entrained in coarse materials without affecting subsequent copper powder screening operations, effectively improving screening efficiency and minimizing waste of fine powder raw materials.

Description

Technical Field

[0001] This utility model relates to the field of copper powder screening technology, specifically a copper powder particle size control device. Background Technology

[0002] Copper powder, also known as copper powder, is widely used in powder metallurgy, electro-carbon products, electronic materials, metal coatings, chemical catalysts, filters, heat sinks, and other electromechanical parts and in the electronics and aerospace fields. Copper powder is formed after electrolysis, cleaning, drying, and other processing. The diameter of the processed copper powder varies, which affects its subsequent use. Therefore, a copper powder particle size control device is needed to screen copper powder of different diameters.

[0003] Currently, the particle size control device for copper powder is generally an air classifier. The working principle of an air classifier is to use a high-speed airflow as a carrier in a closed state, so that the fully diffused powder particles are sprayed onto the screen with sufficient kinetic energy to achieve rapid classification. In simple terms, the air classifier takes advantage of the small and light mass, easy floating and good flowability of powder particles, and fully diffuses them into the airflow. The powder no longer agglomerates, but passes through the screen one by one with the airflow. Therefore, the air classifier has a large output, high efficiency, no sticking to the screen, no clogging of the screen, and precise fineness.

[0004] In existing air classifiers used for copper powder, coarse and fine materials are discharged from two separate outlets. The discharged coarse material contains a small amount of fine material. To reduce the waste of raw materials, the collected coarse material is usually fed back into the machine for secondary screening, but this will affect the screening efficiency of the subsequent copper powder.

[0005] Therefore, how to recover the fine material entrained in the coarse material without affecting the subsequent copper powder screening operation, and reduce raw material waste, has become an urgent problem to be solved in this field. Utility Model Content

[0006] To address the shortcomings of existing technologies, this utility model provides a copper powder particle size control device, which has the advantages of facilitating the recovery of fine materials, reducing raw material waste, and ensuring screening efficiency. It solves the problem that feeding the collected coarse materials back into the machine for secondary screening would affect the subsequent copper powder screening efficiency.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a copper powder particle size control device, comprising a frame and an airflow screen body mounted on the frame, wherein a fine powder discharge hopper and a coarse powder discharge hopper are respectively provided at the bottom of the airflow screen body, a fine powder collection box is provided below the fine powder discharge hopper, and a collection component is provided below the coarse powder discharge hopper.

[0008] The collection assembly includes a screening box disposed inside the frame, a fine powder discharge frame disposed at an angle on the side of the screening box near the fine powder collection box, a movable frame slidably installed inside the screening box, and a screening mechanism disposed outside the movable frame.

[0009] The screening mechanism includes a mounting frame located below the coarse powder discharge hopper and inserted into the inner side of the movable frame, a fine powder screen fixedly installed at the lower part of the mounting frame, and a servo motor disposed on the outside of the screening box. Two cams are fixedly installed on the output shaft of the servo motor, and a connecting rod is movably hinged between the two cams. A slider is movably hinged at the end of the connecting rod away from the cam, and a mounting rod is fixedly connected between the slider and the movable frame.

[0010] Furthermore, the lower end of the coarse powder discharge hopper is fixedly connected to a connecting pipe corresponding to the mounting frame, and a pad frame for placing the mounting frame is provided on the inner side of the movable frame.

[0011] Furthermore, a mounting bracket is fixedly connected to the outer wall of the screening box, and the servo motor is fixedly mounted on the top of the mounting bracket. The cam on the side away from the servo motor is rotatably connected to the mounting bracket.

[0012] Furthermore, a guide rail is fixedly mounted on the top of the mounting bracket, and the slider is slidably mounted on the outside of the guide rail.

[0013] Furthermore, the screening box has a through hole on the side near the mounting rod for the mounting rod to pass through, and two handles are fixedly installed on the outer wall of the mounting frame, with the two handles symmetrically distributed on both sides of the mounting frame.

[0014] Furthermore, a movable block is fixedly connected to the outer wall of the movable frame, and a movable groove adapted to the movable block is opened on the inner wall of the screening box. The movable block is slidably installed on the inner side of the movable groove. There are two movable blocks and two movable grooves, which are symmetrically distributed on both sides of the movable frame.

[0015] Furthermore, the inner side of the screening box is provided with an inclined surface that matches the fine powder discharge frame.

[0016] Compared with the prior art, the present invention provides a copper powder particle size control device, which has the following beneficial effects:

[0017] This copper powder particle size control device uses a servo motor to drive a cam to rotate, which in turn moves a connecting rod. The connecting rod then drives a slider to reciprocate along the outer side of a guide rail. This, in turn, drives a mounting rod to reciprocate a movable frame, which in turn moves synchronously. The reciprocating motion of the mounting frame causes the coarse copper powder on the fine powder screen to vibrate, thus performing a secondary screening of the fine copper powder mixed in. The screened fine copper powder passes through the fine powder screen and is discharged into the fine powder collection box through the fine powder discharge frame. With the cooperation of the collection component and the screening mechanism, the device can simultaneously perform secondary screening of fine material mixed in with coarse material without affecting subsequent copper powder screening operations. This effectively improves screening efficiency, minimizes waste of fine powder raw materials, and enhances the practicality of the device. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0019] Figure 2 This is a schematic diagram of the structure of the collecting component of this utility model;

[0020] Figure 3 This is a structural schematic diagram of the movable frame and the mounting frame of this utility model;

[0021] Figure 4 This is a schematic diagram of the structure of the movable frame of this utility model;

[0022] Figure 5 This is a schematic diagram of the structure of one side of the fine powder discharge frame in the screening box of this utility model.

[0023] In the diagram: 1. Frame; 2. Airflow screen body; 3. Fine powder discharge hopper; 4. Coarse powder discharge hopper; 5. Connecting pipe; 6. Fine powder collection box; 7. Screening box; 8. Fine powder discharge frame; 9. Movable frame; 10. Mounting frame; 11. Fine powder screen; 12. Mounting bracket; 13. Servo motor; 14. Cam; 15. Connecting rod; 16. Slider; 17. Mounting rod; 18. Movable block; 19. Movable groove; 20. Pad frame; 21. Handle; 22. Guide rail; 23. Through hole. Detailed Implementation

[0024] 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.

[0025] Please see Figures 1 to 5The copper powder particle size control device in this embodiment includes a frame 1 and an airflow screen body 2 installed on the frame 1. The bottom of the airflow screen body 2 is respectively provided with a fine powder discharge hopper 3 and a coarse powder discharge hopper 4, and a fine powder collection box 6 is provided below the fine powder discharge hopper 3.

[0026] In this embodiment, a collection component is provided below the coarse powder discharge hopper 4. The collection component includes a screening box 7 located inside the frame 1. A fine powder discharge frame 8 is inclinedly provided on the side of the screening box 7 near the fine powder collection box 6. A movable frame 9 is slidably installed on the inner side of the screening box 7.

[0027] The movable frame 9 has a movable block 18 fixedly connected to its outer wall, and the screening box 7 has a movable groove 19 adapted to the movable block 18 on its inner wall. The movable block 18 is slidably installed on the inner side of the movable groove 19. There are two movable blocks 18 and two movable grooves 19, which are symmetrically distributed on both sides of the movable frame 9. The movable block 18 and the movable groove 19 guide the movable frame 9 through their cooperation, which improves the stability of the structure.

[0028] It should be noted that the inner side of the screening box 7 is provided with an inclined surface that matches the fine powder discharge frame 8, which facilitates the discharge of materials from the screening box 7.

[0029] In this embodiment, a screening mechanism is provided on the outside of the movable frame 9. The screening mechanism includes a mounting frame 10 located below the coarse powder discharge hopper 4 and inserted into the inside of the movable frame 9, a fine powder screen 11 fixedly installed at the lower part of the mounting frame 10, and a servo motor 13 located on the outside of the screening box 7. Two cams 14 are fixedly installed on the output shaft of the servo motor 13. A connecting rod 15 is movably hinged between the two cams 14. A slider 16 is movably hinged at the end of the connecting rod 15 away from the cams 14. An mounting rod 17 is fixedly connected between the slider 16 and the movable frame 9. The outer wall of the screening box 7 is fixedly connected to the mounting frame 12. The servo motor 13 is fixedly installed on the top of the mounting frame 12. The cam 14 on the side away from the servo motor 13 is rotatably connected to the mounting frame 12. At the same time, the top of the mounting frame 12 is fixedly installed with the guide rail 22. The slider 16 is slidably installed on the outside of the guide rail 22. When the servo motor 13 is running, it can drive the cam 14 to rotate and drive the connecting rod 15 to move. The connecting rod 15 will drive the slider 16 to reciprocate along the outside of the guide rail 22, thereby driving the movable frame 9 to reciprocate through the mounting rod 17, and driving the mounting frame 10 to move synchronously. The reciprocating motion of the mounting frame 10 drives the coarse powder on the fine powder screen 11 to shake, thereby performing secondary screening of the fine copper powder entrained therein.

[0030] The lower end of the coarse powder discharge hopper 4 is fixedly connected to a connecting pipe 5 corresponding to the mounting frame 10. The inner side of the movable frame 9 is provided with a pad frame 20 for placing the mounting frame 10. The pad frame 20 provides support for the mounting frame 10 placed inside the movable frame 9, while ensuring that the bottom of the movable frame 9 is open.

[0031] It should be noted that the screening box 7 has a through hole 23 on the side near the mounting rod 17 for the mounting rod 17 to pass through. Two handles 21 are fixedly installed on the outer wall of the mounting frame 10. The two handles 21 are symmetrically distributed on both sides of the mounting frame 10, making it easy to pick up the mounting frame 10.

[0032] The working principle of the above embodiments is as follows:

[0033] In use, the air classifier body 2 separates fine copper powder and coarse copper powder, which are discharged through the fine powder discharge hopper 3 and the coarse powder discharge hopper 4 respectively. The fine copper powder is collected by the fine powder collection box 6, while the coarse copper powder falls onto the fine powder screen 11 inside the mounting frame 10. By starting the servo motor 13, the cam 14 rotates, which in turn moves the connecting rod 15. The connecting rod 15 then moves the slider 16 back and forth along the outside of the guide rail 22, thereby driving the movable frame 9 to reciprocate through the mounting rod 17, and causing the mounting frame 10 to move synchronously. The activity involves the reciprocating motion of the mounting frame 10, which causes the coarse copper powder on the fine powder screen 11 to vibrate, thereby performing secondary screening of the fine copper powder trapped therein. The screened fine copper powder passes through the fine powder screen 11 and is discharged into the fine powder collection box 6 through the fine powder discharge frame 8, which minimizes the waste of fine powder raw materials and does not affect the subsequent screening of copper powder on the airflow screen body 2. After the coarse copper powder on the fine powder screen 11 has been screened, the mounting frame 10 can be removed from the movable frame 9 for easy transfer.

[0034] The installation, connection, or setting methods disclosed in this embodiment are all common mechanical connection methods, and any method that achieves the desired beneficial effect can be implemented. Furthermore, all electrical components in this embodiment are electrically connected to the main controller and power supply. The main controller can be a conventional, known device such as a computer that performs control functions. Those skilled in the art can control the electrical components through simple programming, and the existing disclosed power connection technologies are common knowledge in the field. Therefore, this embodiment will not elaborate further on their specific structural composition and working principles.

[0035] It should be noted that the orientations or positional relationships indicated herein are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the purpose of facilitating the description of this application and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

Claims

1. A device for controlling the particle size of copper powder, characterized in that: Includes a frame (1) and an airflow screen body (2) mounted on the frame (1). The bottom of the airflow screen body (2) is provided with a fine powder discharge hopper (3) and a coarse powder discharge hopper (4). A fine powder collection box (6) is provided below the fine powder discharge hopper (3), and a collection component is provided below the coarse powder discharge hopper (4). The collection assembly includes a screening box (7) disposed inside the frame (1), a fine powder discharge frame (8) is inclinedly disposed on the side of the screening box (7) near the fine powder collection box (6), a movable frame (9) is slidably installed on the inner side of the screening box (7), and a screening mechanism is disposed on the outer side of the movable frame (9). The screening mechanism includes a mounting frame (10) located below the coarse powder discharge hopper (4) and inserted into the inner side of the movable frame (9), a fine powder screen (11) fixedly installed at the lower part of the mounting frame (10), and a servo motor (13) set on the outside of the screening box (7). Two cams (14) are fixedly installed on the output shaft of the servo motor (13). A connecting rod (15) is movably hinged between the two cams (14). A slider (16) is movably hinged at the end of the connecting rod (15) away from the cams (14). An installation rod (17) is fixedly connected between the slider (16) and the movable frame (9).

2. The copper powder particle size control device according to claim 1, characterized in that: The lower end of the coarse powder discharge hopper (4) is fixedly connected to a connecting pipe (5) corresponding to the mounting frame (10), and the inner side of the movable frame (9) is provided with a pad frame (20) for placing the mounting frame (10).

3. The copper powder particle size control device according to claim 1, characterized in that: A mounting bracket (12) is fixedly connected to the outer wall of the screening box (7). The servo motor (13) is fixedly installed on the top of the mounting bracket (12). The cam (14) on the side away from the servo motor (13) is rotatably connected to the mounting bracket (12).

4. The copper powder particle size control device according to claim 3, characterized in that: The top of the mounting bracket (12) is fixedly mounted with a guide rail (22), and the slider (16) is slidably mounted on the outside of the guide rail (22).

5. The copper powder particle size control device according to claim 1, characterized in that: The screening box (7) has a through hole (23) on the side near the mounting rod (17) for the mounting rod (17) to pass through. Two handles (21) are fixedly installed on the outer wall of the mounting frame (10), and the two handles (21) are symmetrically distributed on both sides of the mounting frame (10).

6. The copper powder particle size control device according to claim 1, characterized in that: An active block (18) is fixedly connected to the outer wall of the active frame (9). An active groove (19) adapted to the active block (18) is opened on the inner wall of the screening box (7). The active block (18) is slidably installed on the inner side of the active groove (19). There are two active blocks (18) and two active grooves (19), which are symmetrically distributed on both sides of the active frame (9).

7. The copper powder particle size control device according to claim 1, characterized in that: The inner side of the screening box (7) is provided with an inclined surface that matches the fine powder discharge frame (8).

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