A screening device for masterbatch production

Abstract

This utility model discloses a screening device for color masterbatch production, including a frame, telescopic rod, spring, screening frame, discharge port, waste outlet, vibrating motor, blowing assembly, and scraping assembly. The blowing assembly allows airflow to enter the air outlet pipe through a connecting pipe and then exit through the air outlet at the bottom of the air outlet pipe, thus vertically blowing the color masterbatch on the screen. The airflow slows down the speed of the color masterbatch, facilitating the filtration of powder and small particles during the vibrating conveying process, improving the quality of the screened color masterbatch. The scraping assembly allows the rotary motor to drive the first swing rod to reciprocate back and forth, which in turn drives the second swing rod to swing synchronously. This causes the scraper plate to move back and forth on the screen via a slider. The scraper plate can sweep the color masterbatch with its bristles, turning the color masterbatch and accelerating the screening efficiency, further improving the screening effect.

Description

Technical Field

[0001] This utility model relates to the technical field of color masterbatch production equipment, specifically a screening device for color masterbatch production. Background Technology

[0002] Color masterbatch is a new type of special colorant for polymer materials, also known as pigment preparation. It is mainly used in plastics. Color masterbatch consists of three basic elements: pigment or dye, carrier, and additives. It is an aggregate made by uniformly loading an excessive amount of pigment into resin, and can be called a pigment concentrate, therefore its coloring power is higher than that of the pigment itself. During processing, a small amount of color masterbatch is mixed with uncolored resin to achieve the designed pigment concentration in the resin or product. After processing, color masterbatch usually contains some powder and small particles, requiring sieving treatment using a sieving device.

[0003] The existing screening devices have limited vibrating screen power, and many powders and small particles mixed in the masterbatch are easily discharged directly with the vibration, resulting in a large amount of impurities remaining in the masterbatch after screening, and the screening effect is relatively poor. Utility Model Content

[0004] The purpose of this invention is to provide a screening device for color masterbatch production to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a screening device for masterbatch production, comprising a frame, telescopic rods, springs, a screening frame, a discharge port, a waste outlet, a vibrating motor, a blowing assembly, and a scraping assembly. Telescopic rods are provided at the four corners of the top of the frame, and springs are fitted around the outer sides of the telescopic rods. The tops of the telescopic rods are connected to the screening frame, and the screening frame is elastically connected to the frame via springs. A discharge port is connected to one end of the screening frame, and a waste outlet is connected to one side of the bottom of the screening frame. A vibrating motor is installed in the middle of the bottom of the screening frame. A blowing assembly is provided at the top of the screening frame, and a scraping assembly is installed in the upper inner part of the screening frame. The blowing assembly includes a mounting base, an air outlet pipe, a connector, and a connecting pipe. Mounting bases are installed on both sides of the top of the screening frame, and an air outlet pipe is fitted inside the mounting base. The end of the air outlet pipe is connected to one side of the connector, and a connecting pipe is connected to the other side of the connector.

[0006] Preferably, the scraping assembly includes a connecting seat, a fixing plate, a rotary motor, a first swing rod, a second swing rod, a slider, and a scraping plate. The connecting seat is connected to the side of the screening frame, and a fixing plate is provided on the upper end of the connecting seat. A rotary motor is installed on the side of the connecting seat away from the screening frame. The inner side of the connecting seat is rotatably connected to one end of the first swing rod, and the output shaft of the rotary motor is connected to the first swing rod. The other end of the first swing rod is rotatably connected to one end of the second swing rod, and a slider is rotatably connected to the other end of the second swing rod. The scraping plate is located inside the screening frame, and one end of the scraping plate passes through the screening frame and is connected to the slider.

[0007] Preferably, a screen is provided in the middle of the screening frame, and the screen divides the screening frame into upper and lower spaces, with the upper space being the screening chamber and the lower space being the waste chamber.

[0008] Preferably, the discharge port is connected to the screening chamber, and the waste outlet is connected to the waste chamber.

[0009] Preferably, the lower end of the air outlet pipe is provided with more than ten sets of air outlets, and all the air outlets are perpendicular to the screening chamber.

[0010] Preferably, the bottom end of the scraper is provided with bristles, and the scraper is located at the upper end of the screen.

[0011] Preferably, the fixing plate has a trapezoidal groove inside, and the slider is also trapezoidal, with the slider slidingly engaging with the groove on the fixing plate.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] With the air blowing component, airflow enters the air outlet pipe through the connecting pipe and is then blown out from the air outlet at the bottom of the air outlet pipe, thus vertically blowing the masterbatch on the screen. The airflow can slow down the speed at which the masterbatch passes through, making it easier to filter out powder and small particles during the vibration conveying process, thereby improving the quality of the masterbatch after screening. With the scraping component, the rotary motor can drive the first swing rod to rotate back and forth, which in turn can drive the second swing rod to swing synchronously, so that the scraper moves back and forth on the screen through the slider. The scraper can sweep the masterbatch with the brush bristles, which can turn the masterbatch over, speed up the screening efficiency of the masterbatch, and further improve the screening effect. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the blower assembly structure of this utility model;

[0016] Figure 3This is a schematic diagram of the right side of the scraping component of this utility model;

[0017] Figure 4 This is a left-side view of the scraping component of this utility model.

[0018] In the diagram: Frame-1, Telescopic rod-2, Spring-3, Screening frame-4, Discharge port-5, Waste outlet-6, Vibration motor-7, Blowing assembly-8, Scraping assembly-9, Mounting base-81, Air outlet pipe-82, Connector-83, Connecting pipe-84, Connecting base-91, Fixing plate-92, Rotary motor-93, First swing rod-94, Second swing rod-95, Slider-96, Scraping plate-97. Detailed Implementation

[0019] To further explain the technical solution of this utility model, a detailed description is provided below through specific embodiments.

[0020] Please see Figures 1-2 This utility model provides a screening device for color masterbatch production, including a frame 1, telescopic rods 2, springs 3, a screening frame 4, a discharge port 5, a waste outlet 6, a vibrating motor 7, a blowing assembly 8, and a scraping assembly 9. Telescopic rods 2 are installed at the four corners of the top of the frame 1, and springs 3 are sleeved on the outer sides of the telescopic rods 2. The tops of the telescopic rods 2 are connected to the screening frame 4. A screen is bolted to the middle of the screening frame 4, dividing the screening frame 4 into upper and lower spaces. The upper space is a screening chamber for screening color masterbatch, and the lower space is a waste chamber for storing the undersized powder. The screening frame 4 is elastically connected to the frame 1 by springs 3. A discharge port 5 is integrally formed at one end of the screening frame 4, and the discharge port 5 is connected to the screening chamber. The screening frame 4 is used to discharge the screened masterbatch. A waste outlet 6 is connected to one side of the bottom end of the screening frame 4. The waste outlet 6 is connected to the waste chamber to discharge the powder under the screen. A vibration motor 7 is installed in the middle of the bottom end of the screening frame 4 so that the screening frame 4 can vibrate and screen the masterbatch. A blowing assembly 8 is provided at the top of the screening frame 4. A scraping assembly 9 is installed at the upper end of the screening frame 4. The blowing assembly 8 includes a mounting base 81, an air outlet pipe 82, a connector 83 and a connecting pipe 84. Mounting bases 81 are bolted to both sides of the top end of the screening frame 4. An air outlet pipe 82 is sleeved inside the mounting base 81. The end of the air outlet pipe 82 is threaded to one side of the connector 83, and the other side of the connector 83 is connected to a connecting pipe 84. The connecting pipe 84 is connected to an external air source.

[0021] The lower end of the air outlet pipe 82 is provided with more than ten sets of air outlets, and all the air outlets are perpendicular to the screening chamber, so that the air outlet pipe 82 can blow air onto the color masterbatch on the screen.

[0022] Please see Figures 3-4This utility model provides a screening device for masterbatch production, including a scraping assembly 9 comprising a connecting seat 91, a fixing plate 92, a rotary motor 93, a first swing rod 94, a second swing rod 95, a slider 96, and a scraping plate 97. The connecting seat 91 is bolted to the side of the screening frame 4. The fixing plate 92 is provided on the upper end of the connecting seat 91 and is also bolted to the screening frame 4. The fixing plate 92 has a trapezoidal groove inside. The rotary motor 93 is installed on the side of the connecting seat 91 away from the screening frame 4. The rotary motor 93 is a forward and reverse rotating motor. The inner side of the connecting seat 91 is rotatably connected to one end of the first swing rod 94. The output shaft of the rotary motor 93 is connected to the first swing rod 94 to drive the first swing rod 94 to rotate. The other end of the first swing rod 94 is rotatably connected to one end of the second swing rod 95. The other end of the second swing rod 95 is rotatably connected to a slider 96, which is also trapezoidal in shape. The slider 96 slides in cooperation with the groove on the fixed plate 92. The scraper 97 is located inside the screening frame 4. The middle of the fixed plate 92 and the screening frame 4 are also provided with horizontally corresponding through grooves. One end of the scraper 97 passes through the screening frame 4 and the through groove on the fixed plate and connects with the slider 96, so that the scraper 97 can slide horizontally on the screening frame 4.

[0023] The bottom of the scraper plate 97 is attached with bristles, and the scraper plate 97 is located at the top of the screen to scrape the masterbatch on the screen.

[0024] Specifically, the masterbatch is first poured onto the screen inside the screening frame 4, and then the vibration motor 7 is turned on. The vibration motor 7 drives the screening frame 4 to vibrate. The spring 3 can enhance the vibration force of the screening frame 4 through its elasticity. As the screening frame 4 vibrates continuously, the masterbatch can move from the discharge port 5. During this process, the powder and small particles mixed in the masterbatch can be screened by the screen and fall into the waste chamber. Then, the external air source and the rotary motor 93 are turned on. The airflow can enter the air outlet pipe 82 through the connecting pipe 84 and then blow out from the air outlet at the lower end of the air outlet pipe 82 to vertically blow the masterbatch on the screen. The airflow can slow down the speed of the masterbatch passing through, making it easier for the powder and small particles to be filtered out during the vibration conveying process, thus improving the quality of the masterbatch after screening.

[0025] The rotary motor 93 can drive the first swing rod 94 to rotate 180 degrees from front to back, and then reverse it 180 degrees, repeating this motion. This allows the first swing rod 94 to drive the second swing rod 95 to rotate synchronously. The second swing rod 95 can drive the scraper plate 97 on the slider 96 to slide back and forth on the fixed plate 92. The scraper plate 97 can sweep the masterbatch with its bristles, turning the masterbatch over and speeding up the screening efficiency. The screened masterbatch can be discharged from the discharge port 5, while the screened powder and small particles will be discharged from the waste outlet 6, completing the screening of the masterbatch.

[0026] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A screening device for masterbatch production, comprising a frame (1), a telescopic rod (2), a spring (3), a screening frame (4), a discharge port (5), a waste outlet (6), and a vibrating motor (7), characterized in that: It also includes a blowing assembly (8) and a scraping assembly (9). Telescopic rods (2) are provided at the four corners of the top of the frame (1), and springs (3) are fitted around the outside of the telescopic rods (2). The top of the telescopic rods (2) is connected to the screening frame (4), and the screening frame (4) is elastically connected to the frame (1) via the springs (3). One end of the screening frame (4) is connected to a discharge port (5), and one side of the bottom of the screening frame (4) is connected to a waste outlet (6). A vibration motor (7) is installed in the middle of the bottom of the screening frame (4). The top of the screening frame (4) is provided with a blowing assembly (8), and the upper part of the screening frame (4) is equipped with a scraping assembly (9). The blowing assembly (8) includes a mounting base (81), an air outlet pipe (82), a connector (83), and a connecting pipe (84). Mounting bases (81) are installed on both sides of the top of the screening frame (4). An air outlet pipe (82) is sleeved inside the mounting base (81). The end of the air outlet pipe (82) is connected to one side of the connector (83), and the other side of the connector (83) is connected to the connecting pipe (84).

2. The screening device for masterbatch production according to claim 1, characterized in that: The scraping assembly (9) includes a connecting seat (91), a fixing plate (92), a rotary motor (93), a first swing rod (94), a second swing rod (95), a slider (96), and a scraping plate (97). The connecting seat (91) is connected to the side of the screening frame (4). The fixing plate (92) is provided on the upper end of the connecting seat (91). The rotary motor (93) is installed on the side of the connecting seat (91) away from the screening frame (4). The inner side of the connecting seat (91) is rotatably connected to one end of the first swing rod (94), and the output shaft of the rotary motor (93) is connected to the first swing rod (94). The other end of the first swing rod (94) is rotatably connected to one end of the second swing rod (95). The other end of the second swing rod (95) is rotatably connected to the slider (96). The scraping plate (97) is located inside the screening frame (4), and one end of the scraping plate (97) passes through the screening frame (4) and is connected to the slider (96).

3. The screening device for masterbatch production according to claim 2, characterized in that: The screening frame (4) is provided with a screen in the middle, and the screen divides the screening frame (4) into upper and lower spaces, with the upper space being the screening chamber and the lower space being the waste chamber.

4. The screening device for masterbatch production according to claim 3, characterized in that: The discharge port (5) is connected to the screening chamber, and the waste outlet (6) is connected to the waste chamber.

5. The screening device for masterbatch production according to claim 3, characterized in that: The lower end of the air outlet pipe (82) is provided with more than ten sets of air outlets, and all the air outlets are perpendicular to the screening chamber.

6. The screening device for masterbatch production according to claim 3, characterized in that: The bottom end of the scraper (97) is provided with bristles, and the scraper (97) is located at the top of the screen.

7. The screening device for masterbatch production according to claim 2, characterized in that: The fixed plate (92) has a trapezoidal groove inside, and the slider (96) is also trapezoidal in shape. The slider (96) slides in cooperation with the groove on the fixed plate (92).

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