PVC particle cleaning device

Abstract

The utility model relates to the field of plastic processing, and discloses a PVC particle cleaning device which comprises a machine body shell and a transmission shaft, the upper end of the transmission shaft is in spline connection with a conical cap, the outer surface of the conical cap is fixedly connected with a top plate, and the lower surface of the top plate is fixedly connected with a brush set with the same outer diameter as the top plate. A discharging pipe is arranged on one side of the lower surface of the machine body shell in a communicating mode, a flow divider is arranged at the lower end of the discharging pipe in a communicating mode, a sieve plate is fixedly connected to the interior of the flow divider, a discharging pipe is arranged on the surface of the flow divider in a communicating mode, and a recycling pipe is arranged on the lower surface of the flow divider in a communicating mode. According to the PVC particle cleaning machine, the brush group is arranged on the bottom surface of the machine body shell, so that materials can flow in the cleaning liquid and can also form relative sliding between the bottom surface of the machine body shell and the brush group, and the brush group is in contact with PVC particles, so that the material cleaning strength is increased, and stubborn impurities on the surfaces of the particles can be effectively removed.

Description

Technical Field

[0001] This utility model relates to the field of plastic processing, specifically to a PVC particle cleaning device. Background Technology

[0002] PVC, or polyvinyl chloride, is a thermoplastic widely used in construction, packaging, wire and cable, and other fields. During its production, processing, and recycling, impurities (such as dust, oil, additive residues, and other plastic fragments) may adhere to the surface of PVC granules, affecting subsequent processing performance and product quality. Therefore, PVC granule cleaning is a crucial step in improving material purity and ensuring product performance, especially important in the recycled plastics industry. Firstly, it removes contaminants: eliminating impurities such as dust, oil stains, metal shavings, and label residues introduced during production or recycling. Secondly, it improves purity: separating different types of plastics (such as PE and PP) from non-plastic impurities to ensure the PVC granules have a pure composition. Thirdly, it optimizes processing performance: reducing the impact of impurities on extrusion, injection molding, and other processes, preventing equipment blockages or product defects.

[0003] Existing technology, such as application number CN211762761U, discloses a PVC granule cleaning device, including a "ball chamber". A fixed frame is installed at the top of the ball chamber, and a motor is mounted on the fixed frame. A rotating rod is connected and fixed to the output end of the motor, extending into the ball chamber. Stirring rods are evenly connected and fixed around the sphere at the bottom end of the rotating rod. An inlet is provided on one side of the upper part of the ball chamber, and a discharge pipe is provided on the other side of the lower part of the ball chamber. A liquid outlet pipe is installed in the middle of the bottom end of the ball chamber, and a connecting frame is fixed to the bottom end of the ball chamber. A spring is fixed to the bottom end of the connecting frame, and a base is fixed to the bottom end of the spring, thereby facilitating contact between the PVC granules and the cleaning liquid, allowing the PVC granules to be cleaned more quickly. While the PVC particle cleaning device claims to clean PVC particles more evenly, its cleaning effect relies primarily on the flow of the cleaning fluid to remove contaminants. This makes it less effective at cleaning stubborn oil stains or label residue. Although the device utilizes the vibration of the motor, this results in a lack of effective support, making it prone to shaking during use and compromising safety. Furthermore, after cleaning, the PVC particles and cleaning fluid flow out from the same channel, requiring further separation by staff, which reduces the overall efficiency of PVC particle cleaning. Utility Model Content

[0004] To address the aforementioned technical problems, a PVC particle cleaning device is provided. This technical solution solves the problems mentioned in the background art, which mainly relies on the flow of cleaning fluid to remove contaminants from PVC particles. However, this method is not very effective for cleaning stubborn oil stains or label residues. Although the device utilizes the vibration of the motor during operation as an aid, this results in a lack of effective support, making the device prone to shaking during use and affecting its safety. Furthermore, after cleaning, the PVC particles and cleaning fluid flow out from the same channel, requiring subsequent separation by personnel, which reduces the overall efficiency of PVC particle cleaning.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A PVC granule cleaning device includes a housing. A mounting groove is formed at the center of the lower end of the housing. A drive shaft, rotatable along its centerline, is inserted into the inner side of the mounting groove. A conical cap is splined to the upper end of the drive shaft. A top plate is fixedly connected to the outer surface of the conical cap. A brush assembly with the same outer diameter as the top plate is fixedly connected to the lower end of the top plate. A discharge pipe is connected to one side of the lower end of the housing. A distributor is connected to the lower end of the discharge pipe. A sieve plate is fixedly connected inside the distributor. A discharge pipe is connected to the surface of the distributor. The lower end is connected to a recovery pipe. A brush assembly assists in cleaning, and the drive shaft rotates the brush assembly, which contacts the PVC granules. This effectively removes stubborn impurities from the granule surface, such as oil stains and label residue. Compared to relying solely on the flow of cleaning fluid to remove contaminants, this method offers better cleaning results, more thoroughly removing contaminants from the granule surface, improving the cleanliness and purity of the PVC granules, and ensuring the quality of subsequent processed products. Furthermore, the sieve plate separation allows the cleaning fluid and materials to be discharged from different directions after cleaning, facilitating subsequent process operations.

[0007] Preferably, the upper end of the outer shell of the machine body is fixedly connected to a cover plate with the same outer diameter by bolts, and an input pipe is connected to the center of the upper end of the cover plate, and a material conveying pipe is threadedly connected to the upper end of the input pipe.

[0008] Preferably, a plurality of positioning seats are fixedly connected to the surface of the outer shell of the machine body, and a support leg is fixedly connected to the lower end of the positioning seat.

[0009] Preferably, the discharge pipe is equipped with a rotatable baffle, and an adjustment handle is fixedly connected to one side of the baffle.

[0010] Preferably, a sealing ring for preventing leakage is provided at the center of the lower end of the outer casing.

[0011] Preferably, the lower end of the drive shaft is fixedly connected to a pulley that can be connected to a power source.

[0012] Compared with existing technologies, this utility model provides a PVC granule cleaning device with the following advantages: The drive shaft rotates the brush assembly, allowing the material to not only flow in the cleaning liquid but also slide relative to the bottom surface of the machine casing and the brush assembly. This contact between the brush assembly and the PVC granules increases the cleaning force, effectively removing stubborn impurities such as oil stains and label residue from the granule surface. Compared to relying solely on the flow of the cleaning liquid to remove contaminants, this method offers better cleaning results, more thoroughly removing contaminants from the granule surface, improving the cleanliness and purity of the PVC granules, and ensuring the quality of subsequent processed products. Furthermore, the sieve plate in the distributor allows workers to directly separate the cleaning liquid and PVC granules after cleaning by simply releasing the granules, avoiding the tedious manual separation step. This improves the overall efficiency of PVC granule cleaning, saves time and labor costs, and increases production efficiency. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model;

[0014] Figure 2 This is a schematic diagram of the outer shell structure of the present invention;

[0015] Figure 3 This is a cross-sectional structural diagram of the brush assembly of this utility model.

[0016] The following are the labels in the diagram: 1. Machine casing; 2. Drive shaft; 3. Conical cap; 4. Top plate; 5. Brush assembly; 6. Discharge pipe; 7. Diverter; 8. Screen plate; 9. Outlet pipe; 10. Recovery pipe; 11. Cover plate; 12. Input pipe; 13. Conveying pipe; 14. Positioning seat; 15. Support leg; 16. Baffle; 17. Adjustment handle; 18. Sealing ring; 19. Pulley. Detailed Implementation

[0017] The following description is intended to disclose the present invention so that those skilled in the art can implement it. The preferred embodiments described below are merely examples, and other obvious variations will occur to those skilled in the art.

[0018] Please see Figures 1 to 3This utility model provides a technical solution: a PVC particle cleaning device, including a machine body shell 1. A mounting groove is formed at the center of the lower end of the machine body shell 1. A drive shaft 2, which can rotate along its center line, is inserted into the inner side of the mounting groove. A limit stop is provided at one end of the drive shaft 2 to keep the drive shaft 2 stable during operation and prevent it from falling off. A conical cap 3 is splined to the upper end of the drive shaft 2. The conical cap 3 allows the material entering the device to be evenly distributed inside the device, reducing the accumulation of PVC particles in a certain direction. A top plate 4 is fixedly connected to the outer surface of the conical cap 3. A brush assembly 5 with the same outer diameter as the top plate 4 is fixedly connected to the lower end of the top plate 4. A through hole is formed on the upper surface of the top plate 4 near the input pipe 12. The outer surface of the conical cap 3 is connected to the top plate 4 through a cross-shaped connecting rod. A slightly raised ring is provided on the upper surface of the top plate 4 in this area. The height exceeds the lower end of the input pipe 12, thus ensuring that the PVC granules can accurately enter the device. A discharge pipe 6 is connected to one side of the lower end of the machine body shell 1. A diverter 7 is connected to the lower end of the discharge pipe 6. A screen plate 8 is fixedly connected inside the diverter 7. An outlet pipe 9 is connected to the surface of the diverter 7. A recovery pipe 10 is connected to the lower end of the diverter 7. The brush group 5 in the device is driven by the rotation of the drive shaft 2, so that the PVC granules slide relative to each other between the brush group 5, thereby improving the cleaning effect of the device and better removing stubborn impurities on the surface of the granules, such as oil stains and label residues. Compared with the traditional cleaning method that relies solely on the flow of cleaning liquid, the cleaning effect is better, which can significantly improve the cleanliness and purity of PVC granules and ensure the quality of subsequent processed products. The size of the gap between the brushes in the brush group 5 usually depends on the size and shape of the PVC granules. Generally, the brush gap should be slightly larger than the diameter of the PVC granules to ensure smooth passage. For example, if the diameter of the PVC granules is 2-3mm, a brush set with a brush gap of 3-4mm can be used. Furthermore, the bristles of brush set 5 can be made of a softer or more wear-resistant material to reduce granule jamming between the brushes. For example, nylon or synthetic fiber brushes can be used, as these materials have good elasticity and wear resistance. After cleaning, the PVC granules and cleaning solution are separated by the separator 7, avoiding the tedious manual separation step, improving the overall efficiency of PVC granule cleaning, saving time and labor costs, and increasing production efficiency.

[0019] Furthermore, the upper end of the outer casing 1 is fixedly connected with a cover plate 11 of the same outer diameter by bolts. An input pipe 12 is connected to the center of the upper end of the cover plate 11. The upper end of the input pipe 12 is threadedly connected to a conveying pipe 13. The cover plate 11 can prevent the cleaning liquid from splashing out during cleaning, so that the cleaning liquid can be concentrated in a relatively closed environment, reducing the waste of cleaning liquid. The conveying pipe 13 can be connected after the cleaning liquid is added, which facilitates the input of PVC granules and reduces the risk of leakage.

[0020] Furthermore, several positioning seats 14 are fixedly connected to the surface of the outer shell 1, and support legs 15 are fixedly connected to the lower end of the positioning seats 14. Depending on the actual situation, if the specifications of the device are different, the number of support legs can be adjusted according to actual needs, thereby ensuring the stability of the device during use and reducing the risk of safety accidents.

[0021] Furthermore, a rotatable baffle 16 is movably installed inside the discharge pipe 6. An adjustment handle 17 is fixedly connected to one side of the baffle 16. A semi-circular strip is provided on the inner wall of the discharge pipe 6 near the baffle 16, so that the baffle 16 can only be rotated to a specific side, thereby ensuring that the device has good sealing performance when no material is being discharged and reducing the leakage of cleaning fluid.

[0022] Furthermore, a sealing ring 18 is provided at the center of the lower end of the outer casing 1 to prevent leakage. The sealing ring 18 mainly prevents liquid from leaking from the center of the lower end of the outer casing 1 during the cleaning process. Specifically, the sealing ring 18 can effectively prevent the cleaning fluid from seeping out in the gap between the drive shaft 2 and the outer casing 1, thereby ensuring the normal operation of the equipment and the cleanliness of the working environment. It plays a sealing role, preventing liquid leakage from causing corrosion or damage to the internal components of the equipment, and also preventing liquid from polluting the surrounding environment, ensuring the safety of operators and the cleanliness of the production environment.

[0023] Furthermore, a pulley 19 that can be connected to a power source is fixedly connected to the lower end of the drive shaft 2. The function of the pulley 19 is to transmit the power from the power source to the drive shaft 2 to drive the brush assembly 5 to perform cleaning work. Through the cooperation between the pulley 19 and the power source, a stable and reliable power support can be provided for the entire cleaning device, ensuring the normal rotation of the drive shaft 2, thereby ensuring that the cleaning work of the brush assembly 5 can be carried out continuously and efficiently.

[0024] This solution includes the following working process: Feeding: First, the operator adds the cleaning solution into the inside of the machine casing 1. Then, the PVC granules to be cleaned are fed into the inside of the machine casing 1 through the conveying pipe 13 and the input pipe 12. The cover plate 11 is fixed to the upper surface of the machine casing 1 with bolts to ensure the sealing of the feed port.

[0025] Cleaning: After the PVC granules enter the outer casing 1 of the machine, the drive shaft 2 rotates along its center line under the drive of the power source connected through the pulley 19. The upper end of the drive shaft 2 is connected to a conical cap 3 via a spline. A top plate 4 is fixedly connected to the outer surface of the conical cap 3. A brush assembly 5 with the same outer diameter is fixedly connected to the lower surface of the top plate 4. The brush assembly 5 rotates under the drive of the drive shaft 2 to clean the PVC granules and remove impurities from the surface of the granules.

[0026] Discharge and diversion: The cleaned PVC granules are discharged from the outer casing 1 through the discharge pipe 6 and enter the diverter 7. A screen plate 8 is fixedly connected inside the diverter 7 to separate the PVC granules and the cleaning liquid. The surface of the diverter 7 is connected to the discharge pipe 9 for discharging the cleaned PVC granules. The lower surface of the diverter 7 is connected to the recovery pipe 10 for recovering the cleaning liquid or other reusable materials.

[0027] Discharge control: A flip-up baffle 16 is movably installed inside the discharge pipe 6, and an adjusting handle 17 is fixedly connected to one side of the baffle 16. By adjusting the handle 17, the baffle 16 can be flipped, so that the baffle 16 can be in a horizontal or vertical state, thereby enabling the device to perform cleaning and discharge. The operator can also select a mature handle product on the market to control the discharge and storage of materials, such as the handle of model SK1-093-3W, which has a return spring and a corresponding limit structure in the main shaft direction, and can complete the task of closing the flow channel at a specific angle by relying solely on its own structure.

[0028] Support and sealing: Several positioning seats 14 are fixedly connected to the surface of the outer casing 1, and support legs 15 are fixedly connected to the lower surface of the positioning seats 14, providing stable support for the entire device. A sealing ring 18 is provided at the center of the lower surface of the outer casing 1 to prevent leakage, ensuring that no liquid leaks during the cleaning process.

[0029] Throughout the entire process, the device effectively cleans and processes PVC particles through the cleaning action of the brush group, the screening and separation function of the sieve plate, and the reasonable discharge control and support sealing design, thereby improving cleaning efficiency and quality while ensuring stable operation and safe operation of the equipment.

[0030] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A PVC granule cleaning device comprising a machine housing (1), characterized in that, The lower end of the machine body shell (1) is provided with a mounting groove in the center, the inner side of the mounting groove is inserted with a transmission shaft (2) which can rotate along the center line, the upper end of the transmission shaft (2) is spline connected with a conical cap (3), the outer surface of the conical cap (3) is fixedly connected with a top plate (4), the lower end of the top plate (4) is fixedly connected with a brush group (5) which is consistent with the outer diameter thereof, one side of the lower end of the machine body shell (1) is communicated with a discharge pipe (6), the lower end of the discharge pipe (6) is communicated with a flow divider (7), the inside of the flow divider (7) is fixedly connected with a sieve plate (8), the outer surface of the flow divider (7) is communicated with a discharge pipe (9), the lower end of the flow divider (7) is communicated with a recovery pipe (10).

2. The PVC pellet cleaning device of claim 1, wherein: The upper end of the machine body shell (1) is fixedly connected with a cover plate (11) which is consistent with the outer diameter thereof through bolts, the center of the upper end of the cover plate (11) is communicated with an input pipe (12), the upper end of the input pipe (12) is screw connected with a feeding pipe (13).

3. The PVC pellet cleaning device of claim 1, wherein: The outer surface of the machine body shell (1) is fixedly connected with a plurality of positioning seats (14), the lower end of the positioning seat (14) is fixedly connected with a supporting leg (15).

4. The PVC pellet cleaning device of claim 1, wherein: The inside of the discharge pipe (6) is movably mounted with a turnable baffle (16), one side of the baffle (16) is fixedly connected with an adjusting handle (17).

5. The PVC pellet cleaning device of claim 1, wherein: The lower end of the machine body shell (1) is provided with a sealing ring (18) in the center for preventing liquid leakage.

6. The PVC pellet cleaning device of claim 1, wherein: The lower end of the transmission shaft (2) is fixedly connected with a belt pulley (19) which can be connected with a power source.

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