A cleaning device for PVC granules

Abstract

This utility model relates to the field of polyvinyl chloride (PVC) technology and discloses a cleaning device for PVC granules. The device includes a cleaning tank with five fixed plates fixedly connected to its inner wall. Springs are fixedly connected to the outer walls of each of the five fixed plates. A cleaning rod is fixedly connected to the end of each spring away from the fixed plates. A protrusion, hemispherical in shape, is fixedly connected to the outer wall of the cleaning rod. A sealing cap is provided at the top of the cleaning tank. Under the action of the springs, the cleaning rod swings with the water flow. The swinging cleaning rod contacts and rubs against the irregularly moving PVC granules inside the cleaning tank. Combined with the increased friction from the protrusion on the outer wall of the cleaning rod, stubborn stains adhering to the PVC granules can be removed. Furthermore, the rubber cleaning rod also protects the granules, preventing scratches or breakage that could affect the product's appearance and performance.

Description

Technical Field

[0001] This utility model relates to the field of polyvinyl chloride technology, specifically to a cleaning device for PVC granules. Background Technology

[0002] Polyvinyl chloride, abbreviated as PVC, is a polymer formed by the free radical polymerization of vinyl chloride monomer under the action of initiators such as peroxides and azo compounds, or under the action of light and heat. It appears as a white powder, is non-toxic and odorless, and has a relative molecular mass of generally 50,000 to 110,000 (pure PVC produced in industry). Its relative density is 1.35 to 1.45. It has very low water absorption and air permeability (pure PVC). It is insoluble in water, gasoline, alcohol, and vinyl chloride, but soluble in ketones, esters, and chlorinated hydrocarbon solvents.

[0003] Currently, most PVC granule cleaning equipment on the market uses a cleaning method that combines water with agitation. The agitator is driven by a motor to fully mix the water with the PVC granules, aiming to remove impurities from the granule surface by means of water flow impact and agitation. However, the rigid impact force generated by the agitator during high-speed operation can easily cause physical damage to the PVC granules, resulting in scratches, breakage, and other issues on the granule surface, which seriously affects the appearance and performance of the product. Therefore, there is a need for a cleaning device for PVC granules. Utility Model Content

[0004] The purpose of this invention is to provide a cleaning device for PVC granules, which solves the problems mentioned in the background art.

[0005] This application provides a washing device for PVC granules, including a washing tank. Five fixing plates are fixedly connected to the inner wall of the washing tank, and springs are fixedly connected to the outer walls of the five fixing plates. A cleaning rod is fixedly connected to the end of each spring away from the fixing plate. A protrusion with a hemispherical structure is fixedly connected to the outer wall of the cleaning rod. A sealing cover is provided at the top of the washing tank, and a motor is installed at the top of the sealing cover. The output shaft of the motor passes through the interior of the washing tank and is fixedly connected to a connecting shaft through a coupling. The connecting shaft is located at the center of the interior of the washing tank, and a stirring plate is fixedly connected to the bottom of the connecting shaft.

[0006] When in use, start the motor. The motor's output shaft drives the connecting shaft and the stirring plate to rotate, causing the water in the cleaning tank to rotate. Under the action of the spring, the cleaning rod swings with the water flow. Then, the PVC granules to be cleaned are put into the cleaning tank through the feed port. The swinging cleaning rod makes contact and friction with the irregularly moving PVC granules in the cleaning tank. The protrusions on the outer wall of the cleaning rod increase friction, which can remove stubborn stains adhering to the PVC granules. In addition, the rubber cleaning rod can also protect the granules, preventing scratches or breakage, so as not to affect the appearance and performance of the product. The cleaned granules are finally discharged through the discharge port.

[0007] Optionally, the top of the sealing cover is fixedly connected to a feed inlet located on one side of the motor, and the bottom of the cleaning tank is fixedly connected to a discharge port with a valve installed on the discharge port.

[0008] By adopting the above technical solution, PVC granules can be conveyed into the cleaning tank through the feed inlet, and the cleaned granules can be discharged through the discharge outlet.

[0009] Optionally, an observation window is embedded in the front wall of the cleaning tub.

[0010] By adopting the above technical solution, the cleaning process of PVC granules in the cleaning tank can be clearly observed through the observation window.

[0011] Optionally, the cleaning stick is made of rubber.

[0012] By adopting the above technical solution, the elasticity of rubber can buffer the impact on the granules, avoiding granule breakage or surface scratches caused by hard friction.

[0013] Optionally, a total of eight cleaning rods are provided, and the eight cleaning rods are evenly distributed along the length direction of the fixing plate.

[0014] By adopting the above technical solution, the contact range between the granules and the cleaning rod can be increased, thereby improving the cleaning effect on the granules.

[0015] Optionally, the protrusions are provided in five groups, and each group has six protrusions at equal intervals along the length of the cleaning rod, with the five groups of protrusions distributed in a ring shape.

[0016] By adopting the above technical solution, when the granules slide between the protrusions, the edges of the protrusions will generate micro-friction on the surface of the granules, which helps to remove contaminants with strong adhesion.

[0017] Optionally, the edges of the fixing plate are provided with rounded chamfers.

[0018] By adopting the above technical solution, it is possible to avoid collisions between the granules and the edges of the fixed plate when the granules rotate in the washing tank, thus protecting the granules.

[0019] Optionally, the outer helical surface of the spring is coated with an anti-rust coating.

[0020] By adopting the above technical solution, the elasticity of rubber can buffer the impact on the granules, avoiding granule breakage or surface scratches caused by hard friction.

[0021] Compared with the prior art, the beneficial effects of the technical solution of this application are as follows:

[0022] The technical solution of this application allows the cleaning rod to swing with the flow of water under the action of the spring. The swinging cleaning rod comes into contact with the irregularly moving PVC granules in the cleaning tub, and the protrusions on the outer wall of the cleaning rod increase the friction, which can remove stubborn stains adhering to the PVC granules. In addition, the rubber cleaning rod can also protect the granules, preventing them from being scratched or broken, so as not to affect the appearance and performance of the product. Attached Figure Description

[0023] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0024] Figure 1 This is a schematic diagram of the overall structure of a cleaning device for PVC granules according to the present invention;

[0025] Figure 2 This is a schematic diagram of the internal structure of a cleaning device for PVC granules according to the present invention;

[0026] Figure 3 This is a bottom view schematic diagram of a washing device for PVC granules according to the present invention.

[0027] Figure 4 This is a cross-sectional view of a washing device for PVC granules according to the present invention.

[0028] Figure 5 for Figure 2 A magnified schematic diagram of the local structure of region A;

[0029] Figure 6 This is a front view schematic diagram of the cleaning rod of a cleaning device for PVC granules according to the present invention;

[0030] In the diagram: 1. Sealing cap; 2. Motor; 3. Feed inlet; 4. Observation window; 5. Cleaning tank; 6. Cleaning rod; 7. Discharge port; 8. Stirring plate; 9. Connecting shaft; 10. Fixing plate; 11. Spring; 12. Protrusion. Detailed Implementation

[0031] Please see Figure 1-6 This utility model provides a technical solution: a cleaning device for PVC granules, including a cleaning tank 5. Five fixing plates 10 are fixedly connected to the inner wall of the cleaning tank 5. Springs 11 are fixedly connected to the outer walls of the five fixing plates 10. A cleaning rod 6 is fixedly connected to the end of the spring 11 away from the fixing plate 10. A protrusion 12 is fixedly connected to the outer wall of the cleaning rod 6. The protrusion 12 is a hemispherical structure. A sealing cover 1 is provided on the top of the cleaning tank 5. A motor 2 is installed on the top of the sealing cover 1. The output shaft of the motor 2 passes through the interior of the cleaning tank 5 and is fixedly connected to a connecting shaft 9 through a coupling. The connecting shaft 9 is located at the center of the interior of the cleaning tank 5. A stirring plate 8 is fixedly connected to the bottom of the connecting shaft 9.

[0032] In the technical solution of this utility model, the top of the sealing cover 1 is fixedly connected to the feed port 3, the feed port 3 is located on one side of the motor 2, the bottom of the cleaning tank 5 is fixedly connected to the discharge port 7, and a valve is installed on the discharge port 7; PVC granules can be conveyed into the cleaning tank 5 through the feed port 3, and the cleaned granules can be discharged through the discharge port 7.

[0033] In the technical solution of this utility model, an observation window 4 is embedded in the front wall of the cleaning tank 5; the cleaning status of the PVC granules in the cleaning tank 5 can be clearly observed through the observation window 4.

[0034] In the technical solution of this utility model, the cleaning rod 6 is made of rubber; the elasticity of rubber can buffer the impact on the granules and avoid the granules from breaking or scratching the surface due to hard friction.

[0035] In the technical solution of this utility model, a total of eight cleaning rods 6 are provided, and the eight cleaning rods 6 are distributed at equal distances along the length direction of the fixing plate 10; this can increase the contact range between the granules and the cleaning rods 6, and improve the cleaning effect on the granules.

[0036] In the technical solution of this utility model, five sets of protrusions 12 are provided. Each set of protrusions 12 has six protrusions equidistantly arranged along the length direction of the cleaning rod 6. The five sets of protrusions 12 are distributed in a ring shape. When the granules slide between the protrusions 12, the edges of the protrusions 12 will generate micro-friction on the surface of the granules, which helps to remove contaminants with strong adhesion.

[0037] In the technical solution of this utility model, the edge of the fixing plate 10 is provided with a rounded chamfer; this can prevent the granules from colliding with the edges of the fixing plate 10 when they rotate in the washing tank 5, thus protecting the granules.

[0038] In the technical solution of this utility model, the outer spiral surface of the spring 11 is coated with an anti-rust coating; this helps to improve the corrosion resistance of the spring 11 and extend its service life.

[0039] In use, the motor 2 is started, and the output shaft of the motor 2 drives the connecting shaft 9 and the stirring plate 8 to rotate, thereby causing the water in the cleaning tank 5 to rotate. Under the action of the spring 11, the cleaning rod 6 can swing with the flow of water. Then, the PVC granules to be cleaned are put into the cleaning tank 5 through the feed port 3. The swinging cleaning rod 6 makes contact and friction with the irregularly moving PVC granules in the cleaning tank 5. With the protrusions 12 on the outer wall of the cleaning rod 6 increasing the friction, the stubborn stains adhering to the PVC granules can be removed. In addition, the rubber cleaning rod 6 can also protect the granules and prevent them from being scratched or broken, so as not to affect the appearance and performance of the product. The cleaned granules are finally discharged through the discharge port 7.

[0040] 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 cleaning device for PVC granules, characterized in that: The washing tub (5) includes a washing tub (5) with five fixed plates (10) fixedly connected to its inner wall. The outer walls of the five fixed plates (10) are all fixedly connected to springs (11). The end of the spring (11) away from the fixed plate (10) is fixedly connected to a cleaning rod (6). The outer wall of the cleaning rod (6) is fixedly connected to a protrusion (12). The protrusion (12) is a hemispherical structure. The top of the washing tub (5) is covered with a sealing cover (1). The top of the sealing cover (1) is equipped with a motor (2). The output shaft of the motor (2) passes through the interior of the washing tub (5) and is fixedly connected to a connecting shaft (9) through a coupling. The connecting shaft (9) is located at the center of the interior of the washing tub (5). The bottom end of the connecting shaft (9) is fixedly connected to a stirring plate (8).

2. The washing equipment for PVC granules according to claim 1, characterized in that, The top of the sealing cover (1) is fixedly connected to the feed inlet (3), which is located on one side of the motor (2). The bottom of the cleaning tank (5) is fixedly connected to the discharge port (7), which is equipped with a valve.

3. The washing equipment for PVC granules according to claim 1, characterized in that, The front wall of the cleaning tub (5) is fitted with an observation window (4).

4. The washing equipment for PVC granules according to claim 1, characterized in that, The cleaning stick (6) is made of rubber.

5. The washing equipment for PVC granules according to claim 1, characterized in that, There are eight cleaning rods (6) in total, and the eight cleaning rods (6) are evenly distributed along the length direction of the fixing plate (10).

6. The washing equipment for PVC granules according to claim 1, characterized in that, The protrusions (12) are arranged in five groups. Each group of protrusions (12) has six protrusions (12) arranged at equal intervals along the length of the cleaning rod (6). The five groups of protrusions (12) are distributed in a ring shape.

7. The washing equipment for PVC granules according to claim 1, characterized in that, The edge of the fixing plate (10) is provided with a rounded chamfer.

8. The washing equipment for PVC granules according to claim 1, characterized in that, The outer spiral surface of the spring (11) is coated with an anti-rust coating.

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