Filtering device for PET plastic bottle granulation

Abstract

The utility model relates to the technical field of PET (Polyethylene Terephthalate) filtering, and discloses a filtering device for PET plastic bottle granulation. The supporting columns are oppositely arranged on the two sides of the bottom slope of the capsule body, and the upper end faces of the supporting columns are higher than the capsule body; the motor is arranged on the inner side surface of the supporting column, and the threaded rotating rod is fixedly connected to the output end of the cabin body; the connecting block and the thread are installed on the surface of the threaded rotating rod, one side of the connecting block is fixedly connected with a connecting supporting column, the lower end face of the connecting supporting column is fixedly connected with a sliding block, and the motor drives the threaded rotating rod to rotate so that the connecting block can transversely move back and forth on the surface of the threaded rotating rod; the sliding block can discharge impurities with particles larger than the aperture of the hole of the coarse filter plate through the discharge port along with the movement of the connecting block, so that non-fine filtration caused by excessive accumulation at the bottom end of the coarse filter plate is prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of PET filtering, in particular to a filtering device for granulating PET plastic bottles. Background Art

[0002] PET plastic bottles are not only widely used to package carbonated beverages, drinking water, juice, enzymes and tea drinks, etc., which is the most widely used beverage packaging today, but also widely used in many fields such as food, chemical, and pharmaceutical packaging. They are generally recyclable. There is an important functional component at the front end of the old beverage plastic bottle recycling extruder - the filtering device, which is used to remove impurities remaining in the waste material during the extrusion of the waste plastic, such as sand and fiber.

[0003] Patent search revealed that a filtering device for granulating PET plastic bottles with publication number CN217369262U has the advantages of filtering polyester particles through a coarse filter plate, filtering impurities larger than polyester particles and leaving them on the coarse filter plate, and the falling polyester particles passing through a fine filter plate in a filter box, and impurities smaller in diameter than polyester particles are washed by water through the fine filter plate, leaving the polyester particles in the filter box, completing the filtering and screening, and being able to filter impurities larger and smaller in diameter than polyester particles, while ensuring the cleanliness of polyester particles and reducing impurities in polyester spinning in subsequent production. The above-mentioned comparative document can only filter impurities larger than polyester particles and leave them on the coarse filter plate, but cannot promptly clean up the impurities left on the coarse filter plate. When too much impurity accumulates, the coarse filter plate is blocked, resulting in imprecise filtration. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a filtering device for granulating PET plastic bottles, which solves the problems mentioned in the above background.

[0005] The utility model provides the following technical solution: comprising: a cabin, the upper end surface of the cabin is a slope;

[0006] Support columns are arranged oppositely on both sides of the bottom slope of the cabin;

[0007] The motor is arranged on the inner surface of the support column.

[0008] A threaded rotating rod is fixedly connected to the output end of the motor;

[0009] The connecting block has a threaded sleeve arranged on the surface of the threaded rotating rod, one side of the connecting block is fixedly connected with a connecting pillar, and the lower end surface of the connecting pillar is fixedly connected with a sliding block.

[0010] Furthermore, the interior of the cabin is a cavity, and grooves are provided on the inner wall surfaces on both sides of the cabin, and buffer columns are provided at the upper and lower ends of the grooves.

[0011] Furthermore, a coarse filter plate is arranged between the upper and lower groups of buffer columns, and the slope of the coarse filter plate is the same as the slope of the cabin.

[0012] Furthermore, a discharge port is provided on the bottom slope of the coarse filter plate, and the discharge port penetrates the side wall of the cabin.

[0013] Furthermore, the other end of the threaded rotating rod passes through the support column away from the motor side and is connected to the rotating wheel 1.

[0014] Furthermore, a second rotating wheel is rotatably mounted on the other side surface of the cabin body, the first rotating wheel and the second rotating wheel are connected by a connecting belt, and a cam is fixedly disposed on the end surface of the second rotating wheel extending into the cavity of the cabin body.

[0015] Furthermore, a fine filter plate is installed on the inner wall of the bottom end of the cabin body, and the inclination direction of the fine filter plate is opposite to the slope of the cabin body. A discharge port is opened below the top slope of the cabin body, and the discharge port is communicated with the fine filter plate.

[0016] Compared with the prior art, the utility model has the following beneficial effects:

[0017] The motor of the present application drives the other end of the threaded rotating rod to connect to the first wheel, and the first wheel is connected to the second wheel through the connecting belt. The first wheel drives the second wheel and the cam to rotate, so that the coarse filter plate vibrates, and the filtering efficiency of the coarse filter plate is higher. The rotation of the threaded rotating rod causes the connecting block to move back and forth laterally on the surface of the threaded rotating rod, and the connecting block is connected to the connecting pillar and the slider, so that the slider can discharge impurities whose particles are larger than the diameter of the holes of the coarse filter plate through the discharge port as the connecting block moves, thereby preventing blockage caused by excessive accumulation at the bottom of the coarse filter plate and realizing automatic discharge of larger particles. The threaded rotating rod not only drives the slider to move laterally, but also drives the cam to vibrate the coarse filter plate, saving manpower while also reducing mechanical electricity consumption. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a side view of the cabin of the utility model;

[0019] Figure 2 It is a cross-sectional view of the coarse filter plate of the utility model;

[0020] Figure 3 It is an enlarged view of the buffer column of the utility model;

[0021] Figure 4 It is an enlarged view of the cam of the utility model.

[0022] In the figure: 1. Cabin; 2. Coarse filter plate; 3. Support column; 4. Motor; 5. Threaded rotating rod; 6. Connecting block; 7. Connecting support pillar; 8. Sliding block; 9. Discharge port; 10. Buffer column; 11. Rotor 1; 12. Connecting belt; 13. Rotor 2; 14. Cam; 15. Fine filter plate; 16. Discharge port. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] See also Figure 1-4 , including: a cabin 1, the interior of the cabin 1 is a cavity, and the upper end surface of the cabin 1 is a slope, grooves are opened on the inner wall surfaces on both sides of the cabin 1, and buffer columns 10 are arranged at the upper and lower ends of the grooves, and the upper and lower buffer columns 10 are arranged as a group of four, and a coarse filter plate 2 is obliquely arranged between the upper and lower groups of buffer columns 10, and the slope of the coarse filter plate 2 is consistent with the slope of the cabin 1, and the upper and lower ends of the coarse filter plate 2 are close to the buffer columns 10, and support columns 3 are fixedly arranged on the surfaces of both sides of the bottom slope of the cabin 1, and the discharge port 9 is arranged on the bottom slope of the coarse filter plate 2, and the discharge port 9 runs through the side wall of the cabin 1, and a motor 4 is arranged on the surface of one of the support columns 3, and the output end of the motor 4 is connected to a threaded rotating rod 5, and the surface of the threaded rotating rod 5 is threadedly installed with a connecting rod A connecting block 6 is provided, one side of which is fixedly connected with a connecting pillar 7, a lower end surface of the connecting pillar 7 is fixedly connected with a sliding block 8, and the lower end of the sliding block 8 is close to the upper end surface of the coarse filter plate 2. When the motor 4 rotates, the connecting block 6 is driven to move laterally through the threaded rotating rod 5, and the connecting block 6 connects the connecting pillar 7 and the sliding block 8. When polyester particles are added, the particles will roll to the sliding block 8 along with the inclination angle of the coarse filter plate 2. The polyester particles are screened by the coarse filter plate 2, and impurities whose particles are larger than the hole diameter of the coarse filter plate 2 are filtered and retained at the lowest point of the coarse filter plate 2. As the sliding block 8 moves, the impurities accumulated at the bottom slope of the coarse filter plate 2 are discharged to prevent excessive accumulation at the bottom end of the coarse filter plate 2 from resulting in poor filtration.

[0025] The other end of the threaded rotating rod 5 passes through the surface of the supporting column 3 away from the side of the motor 4 and is fixed to the wheel 11. The surface of the cabin 1 is rotatably installed with a wheel 2 13. The wheel 11 and the wheel 2 13 are connected by a connecting belt 12. The end surface of the wheel 2 13 extending into the cavity of the cabin 1 is fixed with a cam 14. When polyester particles are put in, the polyester particles pass through the surface of the coarse filter plate 2, and the motor 4 drives the wheel 11 to rotate. The wheel 11 drives the wheel 2 13 to rotate through the connecting belt 12. The cam 14 rotates with the wheel 2 13, thereby vibrating the coarse filter plate 2, so that the coarse filter plate 2 has a higher filtering efficiency, and the buffer column 10 can effectively buffer the sound caused by the vibration of the coarse filter plate 2 and the collision between the coarse filter plate 2 and the cabin 1.

[0026] A fine filter plate 15 is installed on the inner wall of the bottom end of the cabin 1. The inclination direction of the fine filter plate 15 is opposite to the slope of the cabin 1. A discharge port 16 is opened below the top slope of the cabin 1, and the discharge port 16 is communicated with the fine filter plate 15. The polyester particles filtered from the coarse filter plate 2 are further filtered through the fine filter plate 15, and gathered toward the discharge port 16 with the inclination angle of the fine filter plate 15, so as to be collected for the next process.

[0027] Working principle: when polyester particles are put in, the motor 4 is started, and the polyester particles pass through the surface of the coarse filter plate 2. The motor 4 drives the wheel 11 to rotate, and the wheel 11 drives the wheel 2 13 to rotate through the connecting belt 12. The cam 14 rotates with the rotation of the wheel 2 13, thereby vibrating the coarse filter plate 2, so that the filtration efficiency of the coarse filter plate 2 is higher, and the buffer column 10 can effectively buffer the sound caused by the vibration of the coarse filter plate 2 and the collision between the coarse filter plate 2 and the cabin 1. The particles will roll to the slider 8 with the inclination angle of the coarse filter plate 2. The polyester particles are screened by the coarse filter plate 2, and the impurities with particles larger than the hole diameter of the coarse filter plate 2 are filtered and retained at the lowest point of the coarse filter plate 2. With the movement of the slider 8, the impurities accumulated on the bottom slope of the coarse filter plate 2 are discharged. Finally, the polyester particles filtered from the coarse filter plate 2 are further filtered through the fine filter plate 15, and gathered toward the discharge port 16 with the inclination angle of the fine filter plate 15, so as to be collected for the next process.

[0028] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A filtering device for granulating PET plastic bottles, comprising: A cabin body (1), wherein the upper end surface of the cabin body (1) is a slope; It is characterized by further comprising: Support columns (3) are arranged oppositely on both sides of the bottom slope of the cabin (1); The motor (4) is arranged on the inner surface of the support column (3). A threaded rotating rod (5) is fixedly connected to the output end of the motor (4); A connecting block (6) is threadedly sleeved on the surface of the threaded rotating rod (5); one side of the connecting block (6) is fixedly connected to a connecting pillar (7); and a sliding block (8) is fixedly connected to the lower end surface of the connecting pillar (7).

2. A filtering device for granulating PET plastic bottles according to claim 1, characterized in that: The interior of the cabin body (1) is a hollow cavity, and grooves are provided on the inner wall surfaces on both sides of the cabin body (1), and buffer columns (10) are provided at the upper and lower ends of the grooves.

3. A filtering device for granulating PET plastic bottles according to claim 1, characterized in that: A coarse filter plate (2) is arranged between the upper and lower groups of buffer columns (10), and the slope of the coarse filter plate (2) is consistent with the slope of the cabin (1).

4. A filtering device for granulating PET plastic bottles according to claim 1, characterized in that: A discharge port (9) is provided on the bottom slope of the coarse filter plate (2), and the discharge port (9) penetrates the side wall of the cabin (1).

5. A filtering device for granulating PET plastic bottles according to claim 1, characterized in that: The other end of the threaded rotating rod (5) passes through the supporting column (3) on the side away from the motor (4) and is connected to a rotating wheel (11).

6. A filtering device for granulating PET plastic bottles according to claim 1, characterized in that: A second rotating wheel (13) is rotatably mounted on the surface of the cabin body (1); the first rotating wheel (11) and the second rotating wheel (13) are connected by a connecting belt (12); and a cam (14) is fixedly disposed on the end surface of the second rotating wheel (13) extending into the cavity of the cabin body (1).

7. A filtering device for granulating PET plastic bottles according to claim 1, characterized in that: A fine filter plate (15) is installed on the inner wall of the bottom end of the cabin body (1), and the inclination direction of the fine filter plate (15) is opposite to the slope of the cabin body (1). A discharge port (16) is provided below the top slope of the cabin body (1), and the discharge port (16) is communicated with the fine filter plate (15).

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