A drying and conveying device for modified plastics processing

Abstract

This utility model belongs to the field of modified plastics processing technology, and particularly relates to a drying and conveying device for modified plastics processing. It includes a support frame, conveyor rollers, a conveyor belt, a motor, and an exhaust hood. Two conveyor rollers are rotatably mounted on the upper part of the support frame, and a conveyor belt is rotatably mounted between the two conveyor rollers. A motor is mounted high on the right side of the support frame, and the output shaft of the motor is fixedly connected to one end of the right conveyor roller. An exhaust hood is mounted on the top of the support frame. Through the coordinated operation of an electric slide rail, an electric slider, a mounting plate, a rotating rod, a rotating frame, a pulley assembly, and a second motor, the height of the rotating frame is adjustable, and dynamic material spreading is achieved. The rotating frame rotates at high speed under the drive of the motor, which can evenly spread plastic granules in the width direction of the conveyor belt, effectively solving the problem of uneven material layer thickness caused by free-falling material in common devices, and significantly improving drying uniformity and efficiency.

Description

Technical Field

[0001] This utility model belongs to the field of modified plastics processing technology, and in particular relates to a drying and conveying device for modified plastics processing. Background Technology

[0002] With the widespread application of modified plastics in the automotive, electronics, and high-end equipment manufacturing industries, the processing of modified plastics places higher demands on the drying quality of raw materials. During the molding and processing of modified plastics, plastic granules typically need to undergo drying and conveying processes to effectively remove moisture and prevent defects such as bubbles, silver streaks, reduced strength, or even material degradation caused by moisture vaporization during high-temperature melting.

[0003] Common drying and conveying devices often use a structure that combines hot air or dehumidification drying with mesh belt conveying. Although this structure can achieve continuous drying, when plastic granules fall freely from the feed inlet onto the conveyor belt, they are prone to local accumulation due to concentrated dumping and differences in the flowability between granules. This leads to uneven material thickness, which results in inconsistent drying effects. In areas with thicker material, the granules are not heated enough, leaving residual moisture. Ultimately, this may cause fluctuations in product performance and increase the scrap rate.

[0004] Therefore, there is a particular need for a drying and conveying device for processing modified plastics to solve the above problems. Utility Model Content

[0005] In order to overcome the shortcomings of common drying conveying devices, such as uneven material distribution due to material accumulation, which affects the uniformity of drying and easily causes moisture residue and product defects, this utility model provides a drying conveying device for modified plastic processing.

[0006] This utility model is achieved through the following technical approach: A drying and conveying device for modified plastic processing includes a support frame, conveyor rollers, a conveyor belt, a motor, an air outlet hood, a fan, a heating component, and a controller. Two conveyor rollers arranged side by side are rotatably mounted on the upper part of the support frame, and a conveyor belt is rotatably mounted between the two conveyor rollers. A motor is installed at a high position on the right side of the support frame, and the output shaft of the motor is fixedly connected to one end of the right conveyor roller. An air outlet hood is installed on the top of the support frame, and multiple fans arranged horizontally at equal intervals are embedded in the upper part of the air outlet hood. A controller is installed on one side of the upper part of the support frame, and the motor and the fans are electrically connected to the controller. It also includes an electric slide rail, an electric slider, a mounting plate, a rotating rod, a rotating frame, a pulley assembly, and a second motor. Two electric slide rails arranged front and back are mounted on the top of the support frame. An electric slider is slidably mounted on each electric slide rail. A mounting plate is installed between the two electric sliders. Two symmetrically arranged rotating rods are rotatably mounted on the mounting plate. A rotating frame is fixed to one end of each rotating rod. A pulley assembly is installed between the other ends of the two rotating rods. A second motor is mounted on the top of the mounting plate. The second motor is located above the front rotating rod, and its output shaft is fixedly connected to the top of the front rotating rod. The electric slide rail, the electric slider, and the second motor are all electrically connected to the controller.

[0007] Optionally, a heating assembly is installed inside the air outlet hood. The heating assembly includes a mounting frame one, a heating tube one, a mounting frame two, and a heating tube two. The mounting frame one and the mounting frame two are installed inside the air outlet hood from top to bottom. Multiple evenly distributed heating tubes one are installed inside the mounting frame one, and multiple evenly distributed heating tubes two are installed inside the mounting frame two. Both heating tubes one and heating tubes two are electrically connected to the controller. The multiple heating tubes one and multiple heating tubes two are spatially staggered vertically and horizontally.

[0008] Optionally, it also includes a sliding frame, guide rods, scraper and spring. The sliding frame is slidably installed at the high left side of the support frame. Two parallel guide rods are fixedly connected at the high left side of the support frame. The guide rods pass vertically through the sliding frame. Each guide rod is fitted with a spring. The two ends of the spring are connected to the sliding frame and the guide rod respectively. A scraper is fixedly connected to the top of the sliding frame. The scraper keeps in contact with the surface of the conveyor belt.

[0009] Optionally, it also includes a guide hopper, which is installed on the other side of the upper part of the support frame.

[0010] Optionally, multiple radial wall ends of the rotating frame are provided with arc-shaped levers.

[0011] Optionally, the inlet of the feed hopper is directly opposite the starting position of the left end of the conveyor belt.

[0012] The beneficial effects of this utility model are as follows: 1. Through the coordinated operation of electric slide rail, electric slider, mounting plate, rotating rod, rotating frame, pulley assembly and motor 2, the height of the rotating frame can be adjusted and the dynamic material spreading function can be realized. The rotating frame rotates at high speed under the drive of the motor, which can spread plastic granules evenly in the width direction of the conveyor belt, effectively solving the problem of uneven material layer thickness caused by free falling material in common devices, and significantly improving drying uniformity and efficiency.

[0013] 2. By setting up a sliding frame, guide rod, scraper and spring, the surface of the conveyor belt can be automatically cleaned. The spring provides constant clamping force, so that the scraper always keeps in contact with the surface of the conveyor belt, removes residual particles in time, prevents material accumulation, ensures long-term stable operation of the device, and reduces the frequency of manual maintenance. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0015] Figure 2 This is a three-dimensional structural diagram of the conveyor belt, sliding frame, and guide rod components of this utility model.

[0016] Figure 3 This is a three-dimensional structural diagram of the guide rod, scraper, and spring components of this utility model.

[0017] Figure 4 This is a three-dimensional structural diagram of the electric slide rail, electric slider, and mounting plate of this utility model.

[0018] Figure 5 This is a partial cross-sectional view of the air outlet hood component of this utility model.

[0019] Figure 6 This is a three-dimensional structural diagram of the components of this utility model, including the fan, mounting frame, and heating tube.

[0020] Explanation of reference numerals in the attached drawings: 1. Support frame, 2. Conveyor roller, 3. Conveyor belt, 31. Sliding frame, 32. Guide rod, 33. Scraper, 34. Spring, 4. Motor 1, 5. Air outlet hood, 6. Fan, 61. Mounting frame 1, 62. Heating tube 1, 63. Mounting frame 2, 64. Heating tube 2, 7. Electric slide rail, 8. Electric slider, 9. Mounting plate, 10. Rotating rod, 11. Rotating frame, 12. Pulley assembly, 13. Motor 2, 14. Controller, 15. Guide hopper. Detailed Implementation

[0021] Example: A drying and conveying device for modified plastic processing, such as... Figure 1 , Figure 2 , Figure 4 , Figure 5 and Figure 6As shown, the assembly includes a support frame 1, conveyor rollers 2, a conveyor belt 3, a motor 4, an exhaust hood 5, a fan 6, a heating assembly, a controller 14, and a guide hopper 15. Two conveyor rollers 2 are rotatably mounted on the upper part of the support frame 1, and a conveyor belt 3 is rotatably mounted between the two conveyor rollers 2. A motor 4 is bolted to the upper right side of the support frame 1. The output shaft of the motor 4 extends horizontally backward and is fixedly connected to the front end of the right-side conveyor roller 2. An exhaust hood 5 is bolted to the top of the support frame 1. The support frame 1 is bolted with six horizontally equidistant fans 6. A controller 14 is bolted to the upper front side of the support frame 1. Both the motor 4 and the fans 6 are electrically connected to the controller 14, which is a programmable logic controller (PLC) model Huichuan Easy521-24T4DT. A guide hopper 15 is bolted to the upper left side of the support frame 1. The inlet of the guide hopper 15 faces the starting position of the left end of the conveyor belt 3, ensuring that the dried plastic granules smoothly slide into the guide hopper 15. The support frame also includes an electric slide rail 7. The system includes an electric slider 8, a mounting plate 9, a rotating rod 10, a rotating frame 11, a pulley assembly 12, and a motor 13. Two rear-mounted electric slide rails 7 are bolted to the top of the support frame 1. The electric slide rails 7 are located to the right of the air outlet hood 5. An electric slider 8 slides on each electric slide rail 7. A mounting plate 9 is bolted between the two electric sliders 8. Two symmetrically arranged rotating rods 10 are rotatably mounted on the mounting plate 9. A rotating frame 11 is fixedly connected to the lower end of each rotating rod 10. The rotating frame 11 has six radial walls... Each end is equipped with an arc-shaped paddle, which can gently disperse plastic particles during rotation to avoid dust generation due to rigid collision. A pulley assembly 12 is provided between the upper ends of the two rotating rods 10. The pulley assembly 12 is lower than the mounting plate 9. A second motor 13 is fixed to the top of the mounting plate 9 by bolts. The second motor 13 is located above the front rotating rod 10, and its output shaft extends vertically downward and is fixedly connected to the top of the front rotating rod 10. The electric slide rail 7, the electric slider 8 and the second motor 13 are all electrically connected to the controller 14.

[0022] like Figure 5 and Figure 6As shown, a heating assembly is fixed inside the air outlet hood 5 by bolts. The heating assembly includes a mounting frame 61, a heating tube 62, a mounting frame 63, and a heating tube 64. The mounting frame 61 and the mounting frame 63 are fixed inside the air outlet hood 5 from top to bottom by bolts. Multiple evenly distributed heating tubes 62 are fixed inside the mounting frame 61 by bolts, and multiple evenly distributed heating tubes 64 are fixed inside the mounting frame 63 by bolts. Both heating tubes 62 and 64 are electrically connected to the controller 14. The multiple heating tubes 62 and 64 are arranged vertically and horizontally in a staggered manner, that is, the axis of the heating tube 64 is directly below the gap between two adjacent heating tubes 62, while the heating tubes 62 are also located above the gap between two adjacent heating tubes 64. This creates a complementary arrangement in the vertical and horizontal directions, effectively eliminating heat radiation blind spots and improving the uniformity of the heat field and the efficiency of heat utilization inside the air outlet hood 5.

[0023] like Figure 2 and Figure 3 As shown, it also includes a sliding frame 31, guide rods 32, scraper 33, and springs 34. The sliding frame 31 is slidably mounted on the high left side of the support frame 1. Two parallel guide rods 32 are fixedly connected to the high left side of the support frame 1. The guide rods 32 penetrate the sliding frame 31 vertically, thereby providing a smooth guide for the sliding of the sliding frame 31. Each guide rod 32 is fitted with a spring 34. The upper and lower ends of the spring 34 are respectively connected to the sliding frame 31 and the guide rod 32, thereby providing a pressing force for the sliding frame 31 toward the conveyor belt 3. A scraper 33 is fixedly connected to the top of the sliding frame 31, and the scraper 33 keeps in contact with the surface of the conveyor belt 3.

[0024] Initially, the electric slider 8 is at the upper limit position of the electric slide rail 7. At this time, the bottom surface of the rotating frame 11 maintains the maximum distance from the surface of the conveyor belt 3. During use, the operator first starts the two electric slide rails 7 through the controller 14, controlling the two electric sliders 8 to synchronously drive the mounting plate 9 downward until the bottom surface of the rotating frame 11 approaches the surface of the conveyor belt 3 to the preset working distance (depending on the particle size of the plastic granules). Then, the electric slide rails 7 are turned off to complete the height adjustment of the rotating frame 11. Next, the motor 1 4, motor 2 13, fan 6, heating tube 1 62, and heating tube 2 64 are started in sequence, and the target working temperature of heating tube 1 62 and heating tube 2 64 is set through the controller 14 to ensure that the temperature is set below the heat distortion temperature of the plastic granules to prevent material degradation. Then, the plastic granules to be dried are fed into the conveyor belt 3 from the right. At this time, the output shaft of motor 1 4 drives the right conveyor roller 2 to rotate counterclockwise. Through the cooperation of the conveyor belt 3 and the left conveyor roller 2, the conveyor belt 3 rotates counterclockwise as a whole, conveying the plastic granules from right to left. When the plastic granules reach the rotating... When the plastic granules are in the area below frame 11, the output shaft of motor 2 13 drives the front rotating rod 10 to rotate clockwise. The front rotating rod 10, through the pulley assembly 12, synchronously drives the rear rotating rod 10 to rotate counterclockwise, thereby causing the two rotating frames 11 to dynamically sweep across the width of the conveyor belt 3. The rotating frames 11 laterally disperse and flatten the accumulated plastic granules, achieving a continuous spreading of uniform thickness. The spread plastic granules are then carried to the left by the conveyor belt 3 into the area covered by the exhaust hood 5. At this time, heating pipe 1 62 and heating pipe 2 64 heat up, which... The air inside the exhaust hood 5 is heated efficiently, and the fan 6 blows the hot air downwards to form a uniform hot air field, which fully dries the plastic granules. During the conveying process, the scraper 33 is always in close contact with the surface of the conveyor belt 3 under the pre-tension of the spring 34, automatically scraping off the residual granules. After drying, the plastic granules leave the area of ​​the exhaust hood 5 and are discharged through the guide hopper 15 to the next process. After the drying and conveying operation is completed, the motor 1 4, motor 2 13, fan 6, heating tube 1 62 and heating tube 2 64 are turned off in sequence.

Claims

1. A drying and conveying device for processing modified plastics, comprising a support frame (1), conveying rollers (2), a conveyor belt (3), a motor (4), an air outlet hood (5), a fan (6), a heating assembly, and a controller (14), wherein two conveying rollers (2) are rotatably arranged side by side on the upper part of the support frame (1), and a conveyor belt (3) is rotatably arranged between the two conveying rollers (2), a motor (4) is installed at a high position on the right side of the support frame (1), the output shaft of the motor (4) is fixedly connected to one end of the right conveying roller (2), an air outlet hood (5) is installed on the top of the support frame (1), and multiple fans (6) arranged horizontally at equal intervals are embedded in the upper part of the air outlet hood (5), and a controller (14) is installed on one side of the upper part of the support frame (1), and the motor (4) and the fans (6) are electrically connected to the controller (14), characterized in that, It also includes an electric slide rail (7), an electric slider (8), a mounting plate (9), a rotating rod (10), a rotating frame (11), a pulley assembly (12), and a second motor (13). The top of the support frame (1) is equipped with two electric slide rails (7) arranged in a front-to-back manner. Each electric slide rail (7) is equipped with an electric slider (8). The mounting plate (9) is installed between the two electric sliders (8). The mounting plate (9) is equipped with two symmetrically arranged rotating rods (10). One end of each rotating rod (10) is fixedly connected to the rotating frame (11). The other end of the two rotating rods (10) is connected to the pulley assembly (12). The top of the mounting plate (9) is equipped with a second motor (13). The second motor (13) is located above the front rotating rod (10), and its output shaft is fixedly connected to the top of the front rotating rod (10). The electric slide rail (7), the electric slider (8), and the second motor (13) are all electrically connected to the controller (14).

2. The drying and conveying device for modified plastic processing according to claim 1, characterized in that, The air outlet hood (5) is equipped with a heating component, which includes a mounting frame 1 (61), a heating tube 1 (62), a mounting frame 2 (63), and a heating tube 2 (64). The air outlet hood (5) is equipped with the mounting frame 1 (61) and the mounting frame 2 (63) from top to bottom. The mounting frame 1 (61) is equipped with multiple evenly distributed heating tubes 1 (62), and the mounting frame 2 (63) is equipped with multiple evenly distributed heating tubes 2 (64). The heating tubes 1 (62) and the heating tubes 2 (64) are electrically connected to the controller (14). The multiple heating tubes 1 (62) and the multiple heating tubes 2 (64) are arranged vertically and horizontally in a staggered manner in space.

3. The drying and conveying device for modified plastic processing according to claim 2, characterized in that, It also includes a sliding frame (31), a guide rod (32), a scraper (33) and a spring (34). The sliding frame (31) is slidably installed at the high left side of the support frame (1). Two parallel guide rods (32) are fixedly connected at the high left side of the support frame (1). The guide rods (32) penetrate the sliding frame (31) vertically. Each guide rod (32) is fitted with a spring (34). The two ends of the spring (34) are connected to the sliding frame (31) and the guide rod (32) respectively. A scraper (33) is fixedly connected to the top of the sliding frame (31). The scraper (33) is in contact with the surface of the conveyor belt (3).

4. The drying and conveying device for modified plastic processing according to claim 3, characterized in that, It also includes a guide hopper (15), and a guide hopper (15) is installed on the other side of the upper part of the support frame (1).

5. A drying and conveying device for modified plastic processing according to claim 4, characterized in that, The rotating frame (11) has arc-shaped paddles at the ends of multiple radial walls.

6. A drying and conveying device for modified plastic processing according to claim 5, characterized in that, The inlet of the guide hopper (15) is directly opposite the starting position of the left end of the conveyor belt (3).

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