A carbon black particle sifter

Abstract

The utility model discloses a kind of carbon black granule screening machines, including frame and screening mechanism, frame: its inside front and back both sides are provided with mounting bracket, screening mechanism: it includes sieve tray, screen, adjusting assembly and connecting assembly, the sieve tray is rotationally connected in the inside of mounting bracket, four sieve trays are staggered distribution up and down, the side of sieve tray far from the middle of frame is discharge end, screen is all set in the inside of sieve tray, adjusting assembly is used for the angle adjustment of sieve tray, connecting assembly is used for the connection of frame and mounting bracket, the carbon black granule screening machine, with multiple-stage screening device, by setting screen of different aperture to carry out multiple-stage screening work, the discharge end of screen is located equipment's front and back both sides respectively, avoid the restriction of space, it is convenient to erect external conveying device, angle adjusting device is also provided, the inclination of different screen can be automatically adjusted, can guarantee screening quality without changing amplitude.

Description

Technical Field

[0001] This utility model relates to the field of carbon black particle screening technology, specifically a carbon black particle screening machine. Background Technology

[0002] Carbon black granules are a type of carbon black specifically designed for use in plastic products. They possess high colorability, high hiding power, high conductivity, and UV resistance. It is a polycrystalline form of carbon, black in appearance, and amorphous with a matte surface. Before processing carbon black granules into plastic products, they need to be screened. Most existing carbon black granule screening machines use vibrating screens, consisting of a screen and a vibrating motor. The screen is mounted above the base via a spring-loaded telescopic rod, and the vibrating motor is located at the lower center of the screen. During operation, the vibrating motor generates excitation force, causing the screen to vibrate. The carbon black granules continuously bounce on the screen. Particles smaller than the screen aperture pass through the holes and fall into the next screen, while particles larger than the screen aperture exit through the outlet. The material falls onto the external conveyor belt to achieve the screening effect. Due to space limitations, traditional carbon black particle screening machines often have a small screen area, and the discharge ends of the screens are located on the same side. Due to space limitations, the height between the two screens is too small, and multiple conveyor belts cannot be vertically distributed. Therefore, most screening machines can only perform two-stage sorting. During operation, the screen inclination angle is fixed. When the particle size difference of the carbon black particles is too small, carbon black particles smaller than the screen holes are often screened out from the discharge end before falling, resulting in incomplete screening. The only way to ensure screening quality is to adjust the amplitude of the vibrating motor to reduce the discharge speed. However, if the amplitude is reduced, the screening speed will also slow down, which seriously affects the screening efficiency. Therefore, we propose a carbon black particle screening machine. Utility Model Content

[0003] The technical problem to be solved by this utility model is to overcome the existing defects and provide a carbon black particle screening machine, which is equipped with a multi-stage screening device. It performs multi-stage screening by setting screens with different aperture sizes. The discharge ends of the screens are located on the front and rear sides of the equipment, avoiding space limitations and facilitating the installation of external conveying devices. It is also equipped with an angle adjustment device, which can automatically adjust the inclination angle of different screens and ensure screening quality without changing the amplitude. It can effectively solve the problems in the background technology.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a carbon black particle screening machine, comprising a frame and a screening mechanism;

[0005] Frame: Mounting brackets are provided on both the front and back sides inside the frame;

[0006] Screening mechanism: It includes screen discs, screens, adjusting components, and connecting components. The screen discs are all rotatably connected to the inside of the mounting frame. The four screen discs are staggered vertically. The side of the screen disc away from the center of the frame is the discharge end. The screens are all set inside the screen discs. The adjusting components are used to adjust the angle of the screen discs. The connecting components are used to connect the frame and the mounting frame. It is equipped with a multi-stage screening device, which performs multi-stage screening by setting screens with different aperture sizes. The discharge ends of the screens are located on the front and rear sides of the equipment, avoiding space limitations and facilitating the installation of external conveying devices. It is also equipped with an angle adjusting device, which can automatically adjust the inclination angle of different screens and ensure screening quality without changing the amplitude.

[0007] Furthermore, the adjustment assembly includes sleeves, connecting columns, and lead screws. The sleeves are all rotatably connected to the lower end of the screen plate on the side away from the center of the frame. The connecting columns are all rotatably connected to the inside of the mounting frame on the side away from the center of the frame. The upper end of the outer surface of the lead screw is slidably connected to the inner wall of the longitudinally adjacent sleeve. The lead screw is rotatably connected to the middle of the inside of the connecting column. The upper end of the outer surface of the lead screw is threadedly connected to the middle of the inside of the longitudinally adjacent sleeve, providing a basis for adjusting the angle of the screen plate and the screen mesh.

[0008] Furthermore, the adjustment assembly also includes a motor, which is located in the middle of the outer surface of the connecting column. The input end of the motor is electrically connected to the output end of the microcontroller, and the upper end of the output shaft of the motor is fixedly connected to the lower end of the longitudinally adjacent lead screw, providing a stable drive for adjusting the angle of the screen plate and screen mesh.

[0009] Furthermore, the adjustment component also includes scale lines, which are all located on the right side of the outer surface of the connecting column, providing a clear indication for adjusting the angle of the sieve plate and the sieve screen.

[0010] Furthermore, the connecting assembly includes a strip opening, a telescopic rod, and a spring. The strip openings are respectively opened on the left and right sides of the mounting frame, and the telescopic rods are respectively set on the left and right sides of the bottom wall of the frame. The telescopic rods are all installed in conjunction with the inner walls of the vertically adjacent strip openings, and the springs are all sleeved on the outer surface of the telescopic rods to provide support and connection for the mounting frame.

[0011] Furthermore, the connecting assembly also includes a second telescopic rod and a second spring. The frame and the mounting bracket are rotatably connected by the second telescopic rod. The eight second telescopic rods are symmetrically distributed front and back. The second springs are all sleeved on the outer surface of the second telescopic rod, further enhancing the connection effect of the mounting bracket.

[0012] Furthermore, the screening mechanism also includes a vibration motor, which is located at the lower center of the mounting frame. The input end of the vibration motor is electrically connected to the output end of the microcontroller to provide a stable drive for screening carbon black particles.

[0013] Furthermore, it also includes a microcontroller, which is located on the rear right side of the frame. The input terminal of the microcontroller is electrically connected to an external power supply to provide control for the screening of carbon black particles.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: This carbon black particle screening machine has the following advantages:

[0015] 1. It is equipped with multiple screens, and multi-stage screening is achieved by the staggered distribution of the screens and the screen mesh with different holes. The movement direction of carbon black particles in different screens can be changed by controlling the vibration direction of the vibrating motor, which avoids space limitations, facilitates the installation of external conveying devices, and improves the screening work.

[0016] 2. The rotation of the motor drives the lead screw to rotate, thereby moving the sleeve up and down and changing the inclination angle of the screen plate and screen mesh. When the inclination angle of the screen plate increases, carbon black particles smaller than the screen mesh aperture can quickly pass through the screen mesh. When the inclination angle of the screen plate decreases, qualified carbon black particles quickly pass through the discharge end into the external conveying device, thus ensuring screening quality without changing the amplitude and without affecting screening efficiency. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 This is a schematic cross-sectional view of the screening mechanism of this utility model;

[0019] Figure 3 This is a schematic diagram of the structure of the adjustment component of this utility model.

[0020] In the diagram: 1. Frame, 2. Mounting bracket, 3. Screening mechanism, 31. Screening disc, 32. Screen mesh, 33. Adjustment component, 331. Sleeve, 332. Connecting column, 333. Lead screw, 334. Motor, 335. Scale line, 34. Connecting component, 341. Strip opening, 342. Telescopic rod one, 343. Spring one, 344. Telescopic rod two, 345. Spring two, 35. Vibration motor, 4. Microcontroller. Detailed Implementation

[0021] 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.

[0022] Please see Figure 1-3 This embodiment provides a technical solution: a carbon black particle screening machine, including a frame 1 and a screening mechanism 3;

[0023] Frame 1: Mounting brackets 2 are provided on both the front and rear sides inside the frame 1, and a microcontroller 4 is also included. The microcontroller 4 is located on the rear right side of the frame 1. The input end of the microcontroller 4 is electrically connected to an external power supply to provide control for the screening of carbon black particles.

[0024] Screening mechanism 3 includes screen discs 31, screens 32, adjusting components 33, and connecting components 34. The screen discs 31 are rotatably connected to the interior of the mounting frame 2. The four screen discs 31 are staggered vertically. The side of the screen disc 31 furthest from the center of the frame 1 is the discharge end, and each discharge end corresponds to an external conveying device. An external conveying device, a belt conveyor, is also located below the lowest screen disc 31. The screens 32 are all located inside the screen discs 31, and the screen openings of the four screens 32 decrease in size from top to bottom. The adjusting components 33 are used for adjusting the angle of the screen discs 31. The connecting components 34 are used for connecting the frame 1 and the mounting frame 2. The adjusting components 33 include sleeves 331, connecting columns 332, and lead screws 333. The sleeves 331 are rotatably connected to the screen discs. The lower end of the 31 is away from the middle of the frame 1. The connecting column 332 is rotatably connected to the inside of the mounting bracket 2 away from the middle of the frame 1. The upper end of the outer surface of the lead screw 333 is slidably connected to the inner wall of the longitudinally adjacent sleeve 331. The lead screw 333 is rotatably connected to the middle of the inside of the connecting column 332. The upper end of the outer surface of the lead screw 333 is threadedly connected to the middle of the inside of the longitudinally adjacent sleeve 331, providing a basis for adjusting the angle of the screen 31 and the screen mesh 32. The adjustment component 33 also includes a motor 334. The motor 334 is located in the middle of the outer surface of the connecting column 332. The input end of the motor 334 is electrically connected to the output end of the microcontroller 4. The upper end of the output shaft of the motor 334 is fixedly connected to the lower end of the longitudinally adjacent lead screw 333, providing a basis for adjusting the angle of the screen 31 and the screen mesh. The 32-degree angle adjustment provides stable drive. The adjustment component 33 also includes scale lines 335, which are all located on the right side of the outer surface of the connecting column 332, clearly showing the tilt of the screen plate 31 for easy observation and adjustment. This provides a clear indication for adjusting the angle of the screen plate 31 and the screen 32. The connecting component 34 includes a strip opening 341, a telescopic rod 342, and a spring 343. The strip openings 341 are respectively opened on the left and right sides of the mounting frame 2. The telescopic rods 342 are respectively located on the left and right sides of the bottom wall of the frame 1. The telescopic rods 342 are all installed in conjunction with the inner wall of the vertically adjacent strip openings 341. The springs 343 are all sleeved on the outer surface of the telescopic rods 342, providing support and connection for the mounting frame 2. The connecting component 34 also includes Telescopic rods 344 and springs 345 are rotatably connected between frame 1 and mounting frame 2. Eight telescopic rods 344 are symmetrically distributed front and back. Springs 345 are all sleeved on the outer surface of the telescopic rods 344, further enhancing the connection effect of mounting frame 2. The screening mechanism 3 also includes a vibrating motor 35, which is located at the lower middle of mounting frame 2. The input end of the vibrating motor 35 is electrically connected to the output end of single-chip microcomputer 4, providing stable drive for screening carbon black particles. A multi-stage screening device is provided, which performs multi-stage screening by setting screens 32 with different aperture sizes. The discharge ends of screens 32 are located on the front and rear sides of the equipment, avoiding space limitations and facilitating the installation of external conveying devices. An angle adjustment device is also provided.It can automatically adjust the tilt angle of different screens 32, ensuring screening quality without changing the amplitude.

[0025] The working principle of the carbon black particle screening machine provided by this utility model is as follows: When screening carbon black particles, the carbon black particle raw material is fed into the uppermost screen plate 31 by an external feeding device. The single-chip microcomputer 4 controls the vibration motor 35 to work. The two vibration motors 35 vibrate and generate excitation force, which drives the corresponding mounting frame 2, screen plate 31 and screen 32 to vibrate. The connecting component 34 provides support and flexible connection for the vibration of the mounting frame 2, screen plate 31 and screen 32. At this time, by adjusting the vibration direction of the vibration motor 35, the screen plate 31 is driven to vibrate, thereby causing the carbon black particles in the screen plate 31 to move towards the discharge end. The strip-shaped opening 341 provides a clearance effect for the vibration of the mounting frame 2. Through the telescopic rod 342, spring 343 and telescopic rod 2 The extension and contraction of 344 and spring 345 provide support and flexible connection for the vibration of the mounting frame 2. As the carbon black particles move, carbon black particles smaller than the aperture of screen 32 fall into the next screen disc 31 to continue this step, while carbon black particles larger than the aperture of screen 32 continue to move towards the discharge end. At this time, carbon black particles with too small a particle size difference and that are not qualified cannot pass through the screen holes and enter the lower screen disc 31. They will move towards the discharge end along with the qualified carbon black particles. At this time, motor 334 runs, and the output shaft of motor 334 drives lead screw 333 to rotate. Since the upper part of the outer surface of lead screw 333 is connected to the internal middle thread of the longitudinally adjacent sleeve 331, the sleeve 331 will slowly move upward as lead screw 333 rotates. The screen 31 and screen 32 are tilted upwards. When the tilt angle of the screen 31 increases, all the carbon black particles in the screen 31 will slow down their movement towards the discharge end, and may even fall back above the screen 32. When the screen 31 and screen 32 are tilted upwards to their correct positions, the motor 334 reverses, the lead screw 333 also reverses synchronously, and the sleeve 331 moves downwards. During this process, when the tilt angle of the screen 31 increases, most of the carbon black particles in the screen 31 are located above the screen 32 and vibrate with the vibration of the screen 31. Carbon black particles smaller than the aperture of the screen 32 can quickly pass through the screen 32 and fall into the screen 31 below. Carbon black particles larger than the aperture of the screen 32 are vibrated to the surface of the particle pile. When the tilt angle of the screen 31 decreases, the angle of the screen 31 becomes gentler. Qualified carbon black particles located on the surface of the granule pile quickly enter the external conveying device through the discharge end. At this time, due to the different vibration directions of the vibrating motor 35, the carbon black particles in the screen 31 on the front side move forward through the discharge end and are sent to the next process through the external conveying device. The carbon black particles in the screen 31 on the rear side move backward through the discharge end and are sent to the next process through the external conveying device. Then, the motor 334 rotates, and the tilt angle of the screen 31 increases again. This process is repeated, and the screen 31 below follows the same steps. The screening quality is ensured without changing the amplitude. The tilt of the screen 31 and the screen 32 can be accurately seen through the scale line 335, which is convenient for observation and adjustment.

[0026] It is worth noting that the microcontroller 4 disclosed in the above embodiments is an S7-200 microcontroller, the motor 334 is a 57BYGH435-65AG6 motor, and the vibration motor 35 is a YBZU-30-6 vibration motor. The microcontroller 4 controls the operation of the motor 334 and the vibration motor 35 using methods commonly used in the prior art.

[0027] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A carbon black particle screening machine, characterized in that: It includes a frame (1) and a screening mechanism (3); Frame (1): Mounting brackets (2) are provided on both the front and rear sides inside the frame; Screening mechanism (3): It includes screen plate (31), screen (32), adjustment component (33) and connection component (34). The screen plate (31) is rotatably connected to the inside of the mounting frame (2). The four screen plates (31) are staggered vertically. The side of the screen plate (31) away from the middle of the frame (1) is the discharge end. The screen (32) is set inside the screen plate (31). The adjustment component (33) is used to adjust the angle of the screen plate (31). The connection component (34) is used to connect the frame (1) and the mounting frame (2).

2. The carbon black particle screening machine according to claim 1, characterized in that: It also includes a microcontroller (4), which is located on the right rear side of the frame (1), and the input terminal of the microcontroller (4) is electrically connected to an external power supply.

3. A carbon black particle screening machine according to claim 2, characterized in that: The adjustment assembly (33) includes a sleeve (331), a connecting column (332), and a lead screw (333). The sleeves (331) are rotatably connected to the lower end of the screen plate (31) away from the middle of the frame (1). The connecting columns (332) are rotatably connected to the inside of the mounting frame (2) away from the middle of the frame (1). The upper end of the outer surface of the lead screw (333) is slidably connected to the inner wall of the longitudinally adjacent sleeve (331). The lead screw (333) is rotatably connected to the middle of the inside of the connecting column (332). The upper end of the outer surface of the lead screw (333) is threadedly connected to the middle of the inside of the longitudinally adjacent sleeve (331).

4. A carbon black particle screening machine according to claim 3, characterized in that: The adjustment component (33) also includes a motor (334), which is located in the middle of the outer surface of the connecting column (332). The input end of the motor (334) is electrically connected to the output end of the microcontroller (4), and the upper end of the output shaft of the motor (334) is fixedly connected to the lower end of the longitudinally adjacent lead screw (333).

5. A carbon black particle screening machine according to claim 4, characterized in that: The adjustment component (33) also includes scale lines (335), which are all located on the right side of the outer surface of the connecting column (332).

6. A carbon black particle screening machine according to claim 1, characterized in that: The connecting assembly (34) includes a strip opening (341), a telescopic rod (342), and a spring (343). The strip opening (341) is respectively opened on the left and right sides of the mounting frame (2). The telescopic rod (342) is respectively set on the left and right sides of the bottom wall of the frame (1). The telescopic rod (342) is installed in conjunction with the inner wall of the vertically adjacent strip opening (341). The spring (343) is sleeved on the outer surface of the telescopic rod (342).

7. A carbon black particle screening machine according to claim 6, characterized in that: The connecting assembly (34) also includes a second telescopic rod (344) and a second spring (345). The frame (1) and the mounting bracket (2) are rotatably connected by the second telescopic rod (344). The eight second telescopic rods (344) are symmetrically distributed front and back, and the second springs (345) are all sleeved on the outer surface of the second telescopic rod (344).

8. A carbon black particle screening machine according to claim 2, characterized in that: The screening mechanism (3) also includes a vibration motor (35), which is located at the lower middle part of the mounting frame (2). The input end of the vibration motor (35) is electrically connected to the output end of the microcontroller (4).

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