Plastic raw material processing equipment

Abstract

The utility model discloses a kind of plastic raw material processing equipment, it relates to plastic processing technical field, specifically a kind of plastic raw material processing equipment, including base, stand, bracket, cylinder, screen cylinder, rotating shaft assembly, heating mechanism and collection box etc.;Bracket top rotatably connects cylinder, rotatably and vibrates and is coaxially arranged in the screen cylinder of cylinder, eccentric block is generated vibration in the rotating shaft two in screen cylinder, rotating shaft two and screen cylinder are equipped with spiral guide vane conveying raw material between them;Cylinder end is connected with discharge pipe, discharge pipe is equipped with heating mechanism and fan to realize drying;Screen cylinder and discharge pipe below are respectively equipped with collection box one with spiral conveying rod, collection box two, cooperate three groups of motor drive transmission. The equipment integrates screening, drying, automatic collection, improves processing efficiency and raw material purity, stable operation, adapts to the demand of plastic processing continuous production line.

Description

Technical Field

[0001] This utility model relates to the field of plastic processing technology, specifically to a plastic raw material processing equipment. Background Technology

[0002] In the plastics processing industry, plastic raw materials (such as granules and recycled materials) need to undergo screening (to remove impurities, crushed coarse pieces, or grade and screen) and drying (to remove trace amounts of moisture from the surface and inside of the raw materials to avoid defects such as bubbles and cracks in the molded parts) before entering the molding process. The effectiveness of these two processes directly affects the quality and production efficiency of the final plastic products.

[0003] Currently, the industry mostly uses step-by-step equipment to process plastic raw materials. First, the raw materials are screened by a separate vibrating screen or drum screen. After screening, the raw materials need to be manually transferred to a dryer (such as a hot air dryer or a dehumidifying dryer) for drying. After drying, they are then manually transferred to subsequent molding equipment. This results in low efficiency, time and labor consumption, and a disconnect between drying and screening. Furthermore, the materials cannot be mixed during screening and drying. Therefore, we have proposed a plastic raw material processing equipment. Utility Model Content

[0004] This invention provides a plastic raw material processing device that solves the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: A plastic raw material processing device includes a support frame 3, a cylinder 8 rotatably connected to the top of the support frame 3, a screen cylinder 11 rotatably connected inside the cylinder 8, a second rotating shaft 12 installed in the middle of the inside of the screen cylinder 11, an eccentric block 10 installed in the middle of the surface of the second rotating shaft 12, a spiral guide vane installed between the second rotating shaft 12 and the screen cylinder 11, a first rotating shaft 5 installed at both ends of the screen cylinder 11, the first rotating shaft 5 passing through the cylinder 8 and rotatably connected to a slider 19, the rotation of the first rotating shaft 5 can drive the screen cylinder 11 to rotate and vibrate, a discharge pipe 13 rotatably connected to the left end of the cylinder 8, the discharge pipe 13 has symmetrical openings in the middle of the left outer side wall, a heating mechanism 14 installed at the opening, and a fan 15 installed at the end of the heating mechanism 14.

[0006] Preferably, the bottom of the bracket 3 is fixedly connected to the base 1, and the top of the base 1 is symmetrically equipped with columns 2 at the left and right ends. The upper end of the column 2 is provided with a sliding groove, and a slider 19 is slidably connected in the sliding groove. Springs 21 are installed at the top and bottom of the slider 19.

[0007] Preferably, a spiral conveyor plate is installed on the inner surface of the cylinder 8, and a gap is left between the spiral conveyor plate and the screen cylinder 11. A round hole is opened at the right end of the cylinder 8, which allows the rotating shaft 5 to move up and down. A feed inlet is installed at the right end of the screen cylinder 11 at the round hole.

[0008] Preferably, the left end of the screen cylinder 11 is longer than the end of the discharge pipe 13. A second collection box 17 and a first collection box 16 are respectively installed below the ends of the screen cylinder 11 and the discharge pipe 13. A spiral conveying rod is installed on the inner bottom of the second collection box 17 and the first collection box 16. The spiral conveying rod passes through the rear side wall of the second collection box 17 and the first collection box 16 to the outside.

[0009] Preferably, one side of the rotating shaft 5 is symmetrically equipped with pulleys 4 on the outer wall of the column 2, and a platform is installed on the inner wall of the column 2. A motor 7 is installed on the platform, and the motor 7 passes through the column 2 and is fixedly connected to one of the pulleys 4. A belt 6 is connected between the pulley 4 and the rotating shaft 5, and the belt 6 and the pulley 4 form a wrap angle.

[0010] Preferably, a ring gear 9 is installed on the right side of the outer surface of the cylinder 8, and a gear is meshed on one side of the ring gear 9. A second motor 18 is installed on the top of the bracket 3, and the output shaft of the second motor 18 is fixedly connected to the gear.

[0011] Preferably, a platform 2 is installed at the lower end of the front side wall of the second collection box 17 and the first collection box 16, and a motor 3 20 is installed on the top of the platform 2. The output shaft of the motor 3 20 passes through the front side wall of the second collection box 17 and the first collection box 16 and is fixedly connected to the central shaft of the spiral conveyor rod.

[0012] This utility model has the following beneficial effects: 1. In this plastic raw material processing equipment, a cylinder 8 is rotatably connected to the top of the support 3. A screen cylinder 11 is rotatably connected inside the cylinder 8. A rotating shaft 12 is installed in the middle of the screen cylinder 11. An eccentric block 10 is installed in the middle of the surface of the rotating shaft 12. A spiral guide plate is installed between the rotating shaft 12 and the screen cylinder 11. A rotating shaft 5 is installed at both ends of the screen cylinder 11. The rotating shaft 5 passes through the cylinder 8 and is rotatably connected to a slider 19. The rotation of the rotating shaft 5 can drive the screen cylinder 11 to rotate and vibrate. The rotation of the rotating shaft 5 drives the screen cylinder 11 to rotate, and the rotation of the screen cylinder 11 drives the rotating shaft 2 and the eccentric block 10 to rotate. Thus, the screen cylinder 11 vibrates and screens the raw material during the rotation process. At the same time, the raw material is constantly tumbling and spreading during the spiral propulsion process of vibrating and screening. Additives or color masterbatches can be added from the feed port to achieve uniform mixing.

[0013] 2. In this plastic raw material processing equipment, a discharge pipe 13 is rotatably connected to the left end of the cylinder 8. A symmetrical opening is provided in the middle of the left outer side wall of the discharge pipe 13. A heating mechanism 14 is installed at the opening. A fan 15 is installed at the end of the heating mechanism 14. The heating mechanism 14 and the fan 15 on the side wall of the discharge pipe 13 form a counter-current hot air to dry the raw material inside the cylinder 8. At the same time, the raw material contacts the heated screen cylinder wall and also receives conductive heat. This combined heating method of convection and conduction is extremely efficient. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the internal structure of this utility model; In the diagram: 1. Base; 2. Column; 3. Bracket; 4. Pulley; 5. Shaft 1; 6. Belt; 7. Motor 1; 8. Cylinder; 9. Ring gear; 10. Eccentric block; 11. Screen cylinder; 12. Shaft 2; 13. Discharge pipe; 14. Heating mechanism; 15. Fan; 16. Collection box 1; 17. Collection box 2; 18. Motor 2; 19. Slider; 20. Motor 3; 21. Spring. Detailed Implementation

[0015] 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.

[0016] Please see Figures 1 to 2 This application provides a plastic raw material processing device, including a support 3, a cylinder 8 rotatably connected to the top of the support 3, a screen cylinder 11 rotatably connected inside the cylinder 8, a second rotating shaft 12 installed in the middle of the inside of the screen cylinder 11, an eccentric block 10 installed in the middle of the surface of the second rotating shaft 12, a spiral guide vane installed between the second rotating shaft 12 and the screen cylinder 11, a first rotating shaft 5 installed at both ends of the screen cylinder 11, the first rotating shaft 5 passes through the cylinder 8 and is rotatably connected to a slider 19, the rotation of the first rotating shaft 5 can drive the screen cylinder 11 to rotate and vibrate, a discharge pipe 13 rotatably connected to the left end of the cylinder 8, a through opening symmetrically opened in the middle of the left outer side wall of the discharge pipe 13, a heating mechanism 14 installed at the through opening, and a fan 15 installed at the end of the heating mechanism 14.

[0017] Based on the above, the bracket 3 provides support for the cylinder 8. The coaxial rotation of the cylinder 8 and the screen cylinder 11 allows the screen cylinder 11 to achieve a combined rotation and vibration motion within the cylinder 8 (rotating shaft 1 5 drives the screen cylinder 11 to rotate, and the eccentric block 10 on rotating shaft 2 12 rotates to generate centrifugal vibration). The spiral guide vane is used to push the raw material to be conveyed along the axial direction of the screen cylinder 11. The heating mechanism 14 at the discharge pipe 13 cooperates with the fan 15 to introduce hot air into the cylinder 8 to achieve raw material drying. The heating mechanism 14 includes a pipe and a heating wire. A pipe with the same diameter as the opening is installed at the opening. A heating wire or heating tube is installed inside the pipe. When the fan blows air through the heating wire and into the cylinder 8 through the pipe, the air is blown into the cylinder 8. Furthermore, the core components for screening and drying are integrated into the same equipment frame, eliminating the need for separate equipment and reducing the equipment's footprint. The rotating and vibrating structure of the screen cylinder 11 lays the foundation for subsequent efficient screening, and the hot air drying structure can directly act on the raw materials during transportation, avoiding the disconnect between drying and screening.

[0018] Please see Figures 1 to 2 The bottom of the bracket 3 is fixedly connected to the base 1. The top left and right ends of the base 1 are symmetrically installed with columns 2. The upper end of the column 2 is provided with a sliding groove, and a slider 19 is slidably connected in the sliding groove. Springs 21 are installed at the top and bottom of the slider 19.

[0019] Based on the above, the base 1 provides stable support for the entire equipment, and the column 2 provides sliding space for the slider 19 through the sliding groove, ensuring that the rotating shaft 5 can move up and down slightly through the slider 19 when the screen cylinder 11 vibrates. The spring 21 on the upper and lower parts of the slider 19 can absorb the impact force generated by the vibration of the screen cylinder 11, avoid the vibration from being transmitted to the base 1 and the column 2, and prevent the entire equipment from shaking. Furthermore, the spring 21 buffer structure effectively reduces vibration and noise during equipment operation, improves equipment stability, and extends the service life of load-bearing components such as base 1 and column 2. The sliding fit between the slide groove and the slider 19 does not affect the vibration and rotation function of the screen cylinder 11, ensuring that the screening efficiency is not limited by the structure.

[0020] Please see Figures 1 to 2 The inner surface of the cylinder 8 is equipped with a spiral conveyor blade, and there is a gap between the spiral conveyor blade and the screen cylinder 11. A round hole is opened at the right end of the cylinder 8, which allows the rotating shaft 5 to move up and down. The right end of the screen cylinder 11 is equipped with a feed port at the round hole.

[0021] Based on the above, the feed inlet provides a channel for plastic raw materials to enter the screen cylinder 11. When the cylinder 8 rotates, the spiral conveyor blades on the inner surface rotate synchronously with the cylinder 8, which can push the qualified raw materials that fall into the cylinder 8 after being screened by the screen cylinder 11 along the axial direction to the discharge pipe 13. The gap between the spiral conveyor blades and the screen cylinder 8 can prevent friction when the two rotate. The round hole at the end of the cylinder 8 provides space for the vibration displacement of the rotating shaft 5, without interfering with the vibration of the screen cylinder 11. Furthermore, the feed inlet is directly connected to the screen cylinder 11, allowing raw materials to directly enter the screening area, reducing conveying losses. The spiral conveyor plates enable automatic conveying of qualified raw materials without manual assistance. The gap design and round hole structure ensure that the movement of each component does not interfere with each other, improving the smoothness of equipment operation.

[0022] Please see Figures 1 to 2 The left end of the screen cylinder 11 is longer than the end of the discharge pipe 13. A second collection box 17 and a first collection box 16 are respectively installed below the ends of the screen cylinder 11 and the discharge pipe 13. A spiral conveying rod is installed on the inner bottom of the second collection box 17 and the first collection box 16. The spiral conveying rod passes through the rear side wall of the second collection box 17 and the first collection box 16 to the outside.

[0023] Based on the above, the longer structure at the left end of the screen cylinder 11 allows coarse materials and impurities that cannot pass through the screen holes to be directly discharged from the end of the screen cylinder 11 and fall into the collection box 2 17 below. The dried qualified raw materials discharged from the discharge pipe 13 fall into the collection box 1 16. When the spiral conveyor rod inside the collection box rotates, it can push the material (impurities or qualified raw materials) inside the box to the outside of the box, realizing the automatic transfer of materials. Furthermore, collection box 2 17 and collection box 1 16 collect impurities and qualified raw materials respectively, achieving classified collection and avoiding material mixing. The spiral conveyor rod replaces manual transfer, reducing labor costs, and can be directly connected to subsequent continuous production lines, adapting to the continuous production needs of plastic processing.

[0024] Please see Figure 2 One side of the rotating shaft 5 is symmetrically equipped with pulleys 4 on the outer wall of the column 2. A platform is installed on the inner wall of the column 2. A motor 7 is installed on the platform. The motor 7 passes through the column 2 and is fixedly connected to one of the pulleys 4. A belt 6 is connected between the pulley 4 and the rotating shaft 5. The belt 6 and the pulley 4 form a wrap angle.

[0025] Based on the above, platform 1 provides installation support for motor 7. After motor 7 starts, the output shaft drives the pulley 4 connected to it to rotate, and the power is transmitted to shaft 5 through belt 6, which ultimately drives shaft 5 to rotate. The triangular wrap angle can increase the contact area between belt 6 and pulley 4, and prevent shaft 5 from slipping during transmission and vibration. Furthermore, the pulley 4 and belt 6 transmission structure is simple and easy to maintain, suitable for transmitting medium and low load power. The triangular wrapping structure improves transmission stability, ensuring that the power of motor 7 can be efficiently transmitted to shaft 5, and ensuring the stable operation of the screen cylinder 11's rotation and vibration functions.

[0026] Please see Figures 1 to 2 A ring gear 9 is installed on the right side of the outer surface of the cylinder 8. A gear is meshed on one side of the ring gear 9. A motor 18 is installed on the top of the bracket 3. The output shaft of the motor 18 is fixedly connected to the gear.

[0027] Based on the above, motor 2 18 is installed on the top of bracket 3, and the output shaft drives the gear to rotate. Through the meshing transmission between the gear and the outer ring gear 9 of the cylinder 8, the power of motor 2 18 is transmitted to the cylinder 8, driving the cylinder 8 to rotate around its own axis. Furthermore, the gear meshing transmission has high precision and high transmission efficiency, which can accurately control the rotation speed of the cylinder 8, ensuring a stable conveying speed of the raw materials by the spiral conveyor blades, and avoiding the accumulation of raw materials in the cylinder 8 or insufficient drying due to excessive conveying speed.

[0028] Please see Figures 1 to 2 Platform 2 is installed at the lower end of the front side wall of collection box 2 17 and collection box 1 16. Motor 3 20 is installed on the top of platform 2. The output shaft of motor 3 20 passes through the front side wall of collection box 2 17 and collection box 1 16 respectively and is fixedly connected to the central shaft of the screw conveyor.

[0029] Based on the above, platform two provides installation support for motor three 20. After motor three 20 is started, its output shaft is directly connected to the central shaft of the screw conveyor, which can directly drive the screw conveyor to rotate without the need for intermediate transmission components. Furthermore, the direct drive structure reduces power loss and improves the rotation efficiency of the screw conveyor. The motor 320 corresponds one-to-one with the screw conveyor, and can control the conveying speed of materials in the two collection boxes separately, flexibly adapting to the processing needs of different materials (impurities, qualified raw materials).

[0030] In summary, this plastic raw material processing equipment, during use, is driven by motor 7 via pulley 4 and belt 6 to rotate shaft 5, which in turn drives screen cylinder 11 to rotate and vibrate simultaneously. Eccentric block 10 on shaft 2 generates centrifugal vibration, while springs 21 at the top and bottom of column 2 and slider 19 buffer the vibration impact. Motor 2 18 drives cylinder 8 to rotate via gear meshing with ring gear 9. Motor 3 20 directly drives the spiral conveyor rods inside collection boxes 16 and 27. Subsequently, plastic raw materials are fed into the feed port on the right side of screen cylinder 11. Under the action of screen cylinder rotation and vibration, qualified raw materials pass through the screen holes and fall onto the inner wall of cylinder 8, where they are pushed to the discharge pipe 13 by the spiral conveyor plates. Simultaneously, the raw materials tumble and diffuse under the push of the spiral guide plates, allowing for simultaneous mixing with... The additives are uniformly mixed, while impurities exceeding the particle size limit are retained in the screen cylinder 11 and conveyed to the left end of the screen cylinder 11 by the guide plate. When qualified raw materials enter the discharge pipe 13, the heating mechanism 14 and the fan 15 form a counter-current hot air, which, combined with the conductive heat of the heated screen cylinder 11 wall, removes the moisture from the raw materials through a combination of convection and conduction heating. Finally, the dried qualified raw materials fall from the discharge pipe 13 into the first collection box 16, and the impurities discharged from the screen cylinder 11 fall into the second collection box 17. Both are automatically conveyed to the subsequent continuous production line by the screw conveyor. The entire process does not require manual transfer, realizing the integrated processing of screening, mixing, drying, and classification collection. This not only greatly improves the processing efficiency and purity of plastic raw materials, but also adapts to the continuous production needs of plastic processing, effectively avoiding the problems of time-consuming and labor-intensive traditional step-by-step equipment and process disconnection.

[0031] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not 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 utility model; the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In addition, unless otherwise explicitly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances. Moreover, 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.

[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A plastic raw material processing device, comprising a support frame (3), characterized in that: The top of the support (3) is rotatably connected to a cylinder (8), and a screen cylinder (11) is rotatably connected inside the cylinder (8). A rotating shaft (12) is installed in the middle of the inside of the screen cylinder (11), and an eccentric block (10) is installed in the middle of the surface of the rotating shaft (12). A spiral guide plate is installed between the rotating shaft (12) and the screen cylinder (11). A rotating shaft (5) is installed at both ends of the screen cylinder (11). The rotating shaft (5) passes through the cylinder (8) and is rotatably connected to a slider (19). A discharge pipe (13) is rotatably connected to the left end of the cylinder (8). A through-hole is symmetrically opened in the middle of the left outer wall of the discharge pipe (13). A heating mechanism (14) is installed at the through-hole. A fan (15) is installed at the end of the heating mechanism (14). The bracket (3) is fixedly connected to a base (1) at the bottom. The base (1) is symmetrically installed with columns (2) at the top left and right ends. The upper end of the column (2) is provided with a sliding groove, and a slider (19) is slidably connected in the sliding groove. Springs (21) are installed at the top and bottom of the slider (19).

2. The plastic raw material processing equipment according to claim 1, characterized in that: The inner surface of the cylinder (8) is equipped with a spiral conveyor plate, and there is a gap between the spiral conveyor plate and the screen cylinder (11). A round hole is opened at the right end of the cylinder (8), and the round hole allows the rotating shaft (5) to move up and down. A feed port is installed at the right end of the screen cylinder (11) at the round hole.

3. The plastic raw material processing equipment according to claim 2, characterized in that: The left end of the screen cylinder (11) is longer than the end of the discharge pipe (13). The screen cylinder (11) and the discharge pipe (13) are respectively equipped with a second collection box (17) and a first collection box (16). The inner bottom of the second collection box (17) and the first collection box (16) are equipped with a spiral conveying rod. The spiral conveying rod passes through the rear side wall of the second collection box (17) and the first collection box (16) to the outside.

4. The plastic raw material processing equipment according to claim 3, characterized in that: One side of the rotating shaft (5) is symmetrically equipped with pulleys (4) on the outer wall of the column (2). A platform is installed on the inner wall of the column (2). A motor (7) is installed on the platform. The motor (7) passes through the column (2) and is fixedly connected to one of the pulleys (4). A belt (6) is connected between the pulley (4) and the rotating shaft (5). The belt (6) and the pulley (4) form a wrap angle.

5. The plastic raw material processing equipment according to claim 4, characterized in that: A ring gear (9) is installed on the right side of the outer surface of the cylinder (8). A gear is meshed on one side of the ring gear (9). A second motor (18) is installed on the top of the bracket (3). The output shaft of the second motor (18) is fixedly connected to the gear.

6. The plastic raw material processing equipment according to claim 5, characterized in that: Platform 2 is installed at the lower end of the front side wall of the second collection box (17) and the first collection box (16). Motor 3 (20) is installed on the top of platform 2. The output shaft of motor 3 (20) passes through the front side wall of the second collection box (17) and the first collection box (16) and is fixedly connected to the central shaft of the spiral conveyor rod.

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