Cleaning device for recycled polyester chip preparation

By using a brush that moves left and right and a conveyor belt tensioning structure, the problems of incomplete cleaning of polyester chips and loose conveyor belts are solved, thus achieving a polyester chip cleaning device with high efficiency and stable operation.

CN224208613UActive Publication Date: 2026-05-08NANTONG HUANYA NEW MATERIALS CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
NANTONG HUANYA NEW MATERIALS CO LTD
Filing Date
2025-04-30
Publication Date
2026-05-08

AI Technical Summary

Technical Problem

Existing polyester chip cleaning devices often fail to thoroughly clean the bottom chips when a large number of chips are poured in at once, resulting in low cleaning efficiency. Furthermore, the filter conveyor belt tends to loosen and slip after prolonged use.

Method used

By designing a brush structure with protrusions and a sleeve, the brush can move left and right to evenly spread the slices. Combined with a threaded rod and a downward moving rod structure, the conveyor belt is tightened. Limiting rollers and protective covers are provided to improve cleaning efficiency and equipment stability.

Benefits of technology

It achieves uniform cleaning of polyester chips, improves cleaning efficiency, avoids missing chips at the bottom, prevents conveyor belt slack, and enhances the working stability of the equipment.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of polyester chip preparation, and discloses a cleaning device for recycled polyester chip preparation, which comprises support legs and two guard plates, the guard plates are fixedly arranged above the support legs, the number of the guard plates is two, and the guard plates are oppositely arranged; a protection box is fixedly installed on one side of one protection plate, a first motor is fixedly installed on one side in the protection box, a round plate is fixedly installed on a transmission shaft of the first motor, a protruding block is fixedly installed on the side, away from the first motor, of the round plate, a sleeve frame is movably installed on one side of the protection plate, and one end of the protruding block extends into the sleeve frame. Rectangular grooves are formed in the side walls of the two protection plates, a brush is fixedly installed on one side of the sleeve frame, and the two ends of the brush penetrate through the rectangular grooves respectively and can move in the rectangular grooves. According to the polyester chip cleaning device, accumulated polyester chips can be spread through left-right movement of the brush, the phenomenon that the polyester chips at the bottom cannot be cleaned due to accumulation is avoided, and meanwhile the cleaning efficiency is improved.
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Description

Technical Field

[0001] This utility model relates to the field of polyester chip preparation technology, and more specifically, to a cleaning device for preparing recycled polyester chips. Background Technology

[0002] Recycled polyester chips are small granules or pellets processed from recycled polyester waste (such as PET bottles, textile waste, etc.), and come in various types and applications. These chips are characterized by their stable viscosity, moderate melting point, good thermal stability, low powder content, white color, and regular particle size.

[0003] Generally, polyester chips need to be cleaned during preparation. Typical cleaning equipment involves placing the polyester chips upside down on a filter conveyor belt, which then rotates to move the chips forward. A flushing head washes the chips on top of the conveyor belt. To save time, a large number of chips are often poured onto the conveyor belt at once. However, this results in chips buried at the bottom not being cleaned. To ensure thorough cleaning, the number of chips poured onto the conveyor belt needs to be reduced, which lowers cleaning efficiency. Therefore, modification and optimization are necessary. Utility Model Content

[0004] To overcome the shortcomings of the existing technology, this utility model provides a cleaning device for the preparation of recycled polyester chips, which has the advantages of uniform cleaning and high cleaning efficiency.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a cleaning device for preparing recycled polyester chips, comprising a support leg and a guard plate, wherein the guard plate is fixedly disposed above the support leg, and the number of guard plates is two and they are arranged opposite to each other;

[0006] A protective box is fixedly installed on one side of one of the protective plates. A motor is fixedly installed on one side inside the protective box. A circular plate is fixedly installed on the drive shaft of the motor. A protrusion is fixedly installed on the side of the circular plate away from the motor. A sleeve is movably installed on one side of the protective plate. One end of the protrusion extends into the interior of the sleeve and can move along the inner side of the sleeve. Rectangular grooves are opened on the side walls of the two protective plates. A brush is fixedly installed on one side of the sleeve. Both ends of the brush pass through the rectangular groove and can move within the rectangular groove.

[0007] As a preferred embodiment of this utility model, a fixing block is fixedly installed on one side of each of the two guard plates. A handle is rotatably installed on the top of one of the fixing blocks, and a threaded rod is fixedly installed on the bottom of the handle. A base plate is fixedly installed on one side of each of the two guard plates. The bottom of the threaded rod is rotatably connected to the base plate. A threaded block is threadedly sleeved on the outer surface of the threaded rod. A downward moving rod is rotatably installed on the side of the threaded block. A limiting post is fixedly installed between the other fixing block and the base plate. There are two threaded blocks, which are respectively disposed on the outer surfaces of the threaded rod and the limiting post. The threaded blocks are movably sleeved with the limiting post.

[0008] As a preferred technical solution of this utility model, a second motor is fixedly installed on one side of the guard plate, and a rotating frame is fixedly installed above the drive shaft of the second motor. One end of the rotating frame passes through the left and right sides of a guard plate and is fixedly installed with rollers. There are two rollers, which are evenly arranged on one side of the guard plate. A filter conveyor belt is driven between the two rollers. The surface of the filter conveyor belt is movably connected to the bottom of the brush and the surface of the downward moving rod, respectively.

[0009] As a preferred embodiment of this utility model, a U-shaped frame is fixedly installed above the guard plate, a straight pipe is fixedly installed on the top of the U-shaped frame, the bottom of the straight pipe passes through the upper and lower sides of the U-shaped frame and a cleaning head is fixedly installed thereon, one end of the straight pipe is fixedly connected to a pipe, a water collection tank is fixedly installed on one side of the support leg, a water pump is fixedly installed on one side of the water collection tank, one end of the water pump extends into the interior of the water collection tank, the other end of the water pump is fixedly connected to a pipe, and a partition is fixedly installed between the two sides inside the water collection tank, dividing the interior space of the water collection tank into two parts.

[0010] As a preferred embodiment of this utility model, a baffle and a guide plate are fixedly installed between the two guard plates. The baffle is located above the filter conveyor belt, and a collection box is movably installed on one side of the support leg. The collection box is located below the guide plate.

[0011] As a preferred embodiment of this utility model, a protective cover is fixedly installed on one side of the guard plate, and the protective cover is located on the outside of the second motor.

[0012] As a preferred technical solution of this utility model, a limiting roller is rotatably installed between the two guard plates. The number of limiting rollers is two and they are evenly arranged on one side of the guard plate. The limiting roller is movably connected to the filter conveyor belt and is located at the bottom of the filter conveyor belt. A limiting rod is fixedly installed on one side of the guard plate. A moving block is movably sleeved on the outer surface of the limiting rod. The moving block is fixedly connected to the sleeve frame.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] 1. This utility model uses a starting motor to drive the rotation of a circular plate, which in turn drives the rotation of a protrusion. Simultaneously, since the protrusion 6 is movably fitted inside the sleeve 7, the protrusion 6 moves up and down along the slots inside the sleeve 7. Therefore, when the protrusion rotates, it causes the sleeve to move left and right, thereby driving the brush to move left and right, so that the polyester chips are evenly spread on the surface of the filter conveyor belt. Compared with traditional devices, this device, through the left and right movement of the brush, allows the accumulated polyester chips to be spread out, avoiding them from piling up together and making it impossible to clean the polyester chips at the bottom, while also improving the cleaning efficiency.

[0015] 2. This utility model drives the rotation of the threaded rod by rotating the handle. Since there is a thread between the threaded rod and a threaded block, and the threaded block is connected to the lower moving rod, the rotation of the threaded rod drives the movement of the threaded block, which in turn drives the movement of the lower moving rod, ultimately tightening the filter conveyor belt. Compared with traditional devices, this device tightens the filter conveyor belt by moving the lower moving rod, preventing the filter conveyor belt from becoming loose after long-term use, which would cause slippage at the connection with the rollers and prevent rotation, thereby improving the working efficiency of the device. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a side view of the present invention.

[0018] Figure 3 This is a schematic diagram of the internal structure of the protective box of this utility model;

[0019] Figure 4 This utility model Figure 3 A magnified view of part A;

[0020] Figure 5 This is a schematic diagram of the structure of the limiting roller of this utility model;

[0021] Figure 6 This utility model Figure 5 A magnified view of part B;

[0022] Figure 7 This is a schematic diagram of the separate structure of the circular plate and the protrusion of this utility model;

[0023] Figure 8 This is a schematic diagram of the structure of the roller of this utility model;

[0024] Figure 9 This is a schematic diagram of the structure of the partition of this utility model.

[0025] In the diagram: 1. Support leg; 2. Guard plate; 3. Protective box; 4. Motor 1; 5. Round plate; 6. Protrusion; 7. Sleeve; 8. Rectangular groove; 9. Brush; 10. Moving block; 11. Limiting rod; 12. Fixing block; 13. Handle; 14. Threaded rod; 15. Threaded block; 16. Base plate; 17. Lowering rod; 18. Limiting post; 19. Protective cover; 20. Motor 2; 21. Rotating frame; 22. Roller; 23. Filter conveyor belt; 24. U-shaped frame; 25. Cleaning head; 26. Straight pipe; 27. Pipeline; 28. Water pump; 29. ​​Water collection tank; 30. Baffle; 31. Guide plate; 32. Collection box; 33. Limiting roller; 34. Partition. Detailed Implementation

[0026] 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.

[0027] like Figures 1 to 9 As shown, this utility model provides a cleaning device for preparing recycled polyester chips, including a support leg 1 and a guard plate 2. The guard plate 2 is fixedly disposed above the support leg 1, and there are two guard plates 2 arranged opposite to each other.

[0028] One of the guard plates 2 has a protective box 3 fixedly installed on one side. Inside the protective box 3, a motor 4 is fixedly installed on one side. A circular plate 5 is fixedly installed on the drive shaft of the motor 4. A protrusion 6 is fixedly installed at the apex of the upper edge of the circular plate 5 away from the motor 4. A sleeve 7 is movably installed on one side of the guard plate 2. One end of the protrusion 6 extends into the interior of the sleeve 7. The sleeve 7 is movably fitted with the protrusion 6 and can move along the groove inside the sleeve 7. Rectangular grooves 8 are formed on one side of both guard plates 2. A brush 9 is fixedly installed on one side of the sleeve 7. Both ends of the brush 9 pass through the rectangular grooves 8 and can move within them. A limit rod 11 is fixedly installed on one side of the guard plate 2. A moving block 10 is movably fitted onto the outer surface of the limit rod 11 and is fixedly connected to the sleeve 7. By designing the moving block 10 and the limiting rod 11, the limiting rod 11, through its connection with the moving block 10, fixes the moving direction of the sleeve 7, so that the downward force exerted by the brush 9 and the circular plate on the guard plate 2 is transferred to the downward force exerted by the moving block 10 on the limiting rod 11, thereby reducing the friction between the brush 9 and the guard plate 2.

[0029] By starting the motor 4, the circular plate 5 is rotated, which in turn drives the protrusion 6 to rotate. At the same time, since the protrusion 6 is movably fitted inside the sleeve 7, the protrusion 6 will move up and down along the slot in the sleeve 7. Therefore, when the protrusion 6 rotates, the sleeve 7 moves left and right, which in turn drives the brush 9 to move left and right, so that the polyester chips are evenly spread on the surface of the filter conveyor belt 23. Compared with the traditional device, this device can spread the accumulated polyester chips by moving the brush 9 left and right, avoiding them from piling up together and making it impossible to clean the polyester chips at the bottom, and also improving the cleaning efficiency.

[0030] One of the two guard plates 2 has a fixed block 12 fixedly installed on one side. A handle 13 is rotatably installed on the top of one of the fixed blocks 12. A threaded rod 14 is fixedly installed on the bottom of the handle 13. A base plate 16 is fixedly installed on one side of both guard plates 2. The bottom of the threaded rod 14 is rotatably connected to the base plate 16. A threaded block 15 is threadedly sleeved on the outer surface of the threaded rod 14. The side of the threaded block 15 is rotatably installed on one end of the downward moving rod 17. A limit post 18 is fixedly installed between the other fixed block 12 and the base plate 16. Another threaded block 15 is movably sleeved on the outer surface of the limit post 18. The side of the threaded block 15 is rotatably installed on the other end of the downward moving rod 17. The downward moving rod 17 is located on the lower surface of the filter conveyor belt 23.

[0031] The rotation of the threaded rod 14 is driven by the rotation of the handle 13. Since there is a thread between the threaded rod 14 and the threaded block 15 sleeved on its outer surface, the rotation of the threaded rod 14 causes the threaded block 15 on its outer surface to move upward, which in turn causes one end of the downward moving rod 17 fixed to the threaded block 15 to move upward. The other end of the downward moving rod 17 causes another threaded block 15 sleeved on the outer surface of the limiting post 18 to move upward on the limiting post, ultimately tightening the filter conveyor belt 23. Alternatively, if the weight of the downward moving rod 17 is too large or it is subjected to downward pressure after contacting the filter conveyor belt, the other threaded block 15 may not move on the limiting post, causing the downward moving rod 17 to tilt, which can also tighten the filter conveyor belt 23. Compared with the traditional device, this device tightens the filter conveyor belt 23 by moving the downward moving rod 17, preventing the filter conveyor belt 23 from becoming loose after long-term use, which would cause slippage at the connection with the roller 22 and prevent it from rotating, thereby improving the working efficiency of the device.

[0032] Among them, a motor 20 is fixedly installed on one side of the guard plate 2, and a rotating frame 21 is fixedly installed above the drive shaft of the motor 20. One end of the rotating frame 21 passes through the left and right sides of the guard plate 2 and a roller 22 is fixedly installed. There are two rollers 22, which are evenly arranged on one side of the guard plate 2. A filter conveyor belt 23 is connected between the two rollers 22. The surface of the filter conveyor belt 23 contacts the bottom of the brush 9 and the surface of the downward moving rod 17, respectively.

[0033] The output shaft of the starting motor 20 drives the rotating frame 21 to rotate, which in turn drives the roller 22 to rotate, thereby driving the filter conveyor belt 23 to rotate.

[0034] A U-shaped frame 24 is fixedly installed on the top of the guard plate 2. A straight pipe 26 is fixedly installed on the top of the U-shaped frame 24. The bottom of the straight pipe 26 passes through the upper and lower sides of the U-shaped frame 24 and a cleaning head 25 is fixedly installed thereon. One end of the straight pipe 26 is fixedly connected to a pipe 27. A water collection tank 29 is fixedly installed on one side of the support leg 1. A water pump 28 is fixedly installed on one side of the water collection tank 29. One end of the water pump 28 extends into the interior of the water collection tank 29, and the other end of the water pump 28 is fixedly connected to the pipe 27. A partition 34 is fixedly installed between the two sides inside the water collection tank 29. The partition 34 divides the interior space of the water collection tank 29 into two parts, which respectively contain the water used for cleaning and the wastewater after cleaning.

[0035] The water pump 28 is activated to draw water from the collection tank 29 for cleaning. The water then enters the straight pipe 26 through the pipe 27 and then into the cleaning head 25. The water is sprayed out through the cleaning head 25 to clean the polyester chips. The wastewater after cleaning is discharged through the collection tank.

[0036] Among them, a baffle 30 and a guide plate 31 are fixedly installed between the two guard plates 2. The baffle 30 is located above the filter conveyor belt 23, and a collection box 32 is movably installed on one side of the support leg 1. The collection box 32 is located below the guide plate 31.

[0037] The design of the baffle 30 facilitates the placement of polyester chips above the filter conveyor belt 23, the design of the guide plate 31 facilitates the guidance of the washed polyester chips, and the collection box 32 collects the washed polyester chips.

[0038] Among them, a protective cover 19 is fixedly installed on one side of the guard plate 2, and the protective cover 19 is located on the outside of the motor 20.

[0039] The protective cover 19 is designed to protect the second motor 20 and improve the safety of the second motor 20 during operation.

[0040] Among them, a limiting roller 33 is rotatably installed between the two guard plates 2. There are two limiting rollers 33, which are evenly arranged on one side of the guard plate 2. The limiting roller 33 is in active contact with the filter conveyor belt 23 and is located at the bottom of the filter conveyor belt 23. Through the design of the limiting roller 33, the contact angle between the filter conveyor belt 23 and the roller 22 is improved.

[0041] Working principle and usage process of this utility model:

[0042] When the operator uses the device, they first start the motor 4. When the motor 4 starts, it drives the circular plate 5 to rotate. When the circular plate 5 rotates, it drives the protrusion 6 located on the upper edge to move in an arc around the center of the circular plate 5. At the same time, since the protrusion 6 is movably fitted inside the sleeve 7, the protrusion 6 will move up and down along the slot in the sleeve 7. Therefore, when the protrusion 6 rotates, it will drive the sleeve 7 to move left or right along the limit rod 11 according to the rotation direction of the motor 4. When the sleeve 7 moves left and right, it will drive the brush 9 to move left and right. When the brush 9 moves left and right, it will evenly spread the polyester chips that have passed the bottom of the brush 9 on the top of the filter conveyor belt 23, thus facilitating cleaning.

[0043] When the operator uses the device, they first turn the handle 13. When the handle 13 turns, it will drive the threaded rod 14 to rotate. When the threaded rod 14 rotates, because the connection between the threaded block 15 and the threaded rod 14 is threaded, and the rotation of the threaded block 15 is restricted by the limit post 18, the threaded rod 14 will rotate and drive the threaded block 15 to move. When the threaded block 15 moves, it will drive the downward moving rod 17 to move. When the downward moving rod 17 moves, it will tighten the filter conveyor belt 23.

[0044] The water pump 28 draws water from the collection tank 29 into the straight pipe 26 via the pipe 27, and then into the cleaning head 25. The water sprayed downwards from the cleaning head 25 creates force between the water and the polyester chips, washing away the dust from their surface. The wastewater is then discharged through the wastewater collection tank.

[0045] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, 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.

[0046] 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 cleaning device for preparing recycled polyester chips, comprising support legs (1) and a protective plate (2), characterized in that: The guard plate (2) is fixedly installed above the support leg (1), and there are two guard plates (2) arranged opposite to each other; A protective box (3) is fixedly installed on one side of one of the protective plates (2). A motor (4) is fixedly installed on one side inside the protective box (3). A circular plate (5) is fixedly installed on the drive shaft of the motor (4). A protrusion (6) is fixedly installed on the side of the circular plate (5) away from the motor (4). A sleeve (7) is movably installed on one side of the protective plate (2). One end of the protrusion (6) extends into the interior of the sleeve (7) and can move along the groove in the sleeve (7). Rectangular grooves (8) are opened on the side walls of the two protective plates (2). A brush (9) is fixedly installed on one side of the sleeve (7). The two ends of the brush (9) pass through the rectangular groove (8) and can move within the rectangular groove (8).

2. The cleaning apparatus for preparing recycled polyester chips according to claim 1, characterized in that: A fixing block (12) is fixedly installed on one side of each of the two guard plates (2). A handle (13) is rotatably installed on the top of one of the fixing blocks (12). A threaded rod (14) is fixedly installed on the bottom of the handle (13). A base plate (16) is fixedly installed on one side of each of the two guard plates (2). The bottom of the threaded rod (14) is rotatably connected to the base plate (16). A threaded block (15) is threadedly sleeved on the outer surface of the threaded rod (14). A downward moving rod (17) is rotatably installed on the side of the threaded block (15). A limiting post (18) is fixedly installed between the other fixing block (12) and the base plate (16). There are two threaded blocks (15). The two threaded blocks (15) are respectively set on the outer surface of the threaded rod (14) and the limiting post (18). The threaded block (15) is movably sleeved with the limiting post (18).

3. The cleaning apparatus for preparing recycled polyester chips according to claim 1, characterized in that: A motor (20) is fixedly installed on one side of the guard plate (2). A rotating frame (21) is fixedly installed above the drive shaft of the motor (20). One end of the rotating frame (21) passes through the left and right sides of a guard plate (2) and is fixedly installed with rollers (22). There are two rollers (22), which are evenly arranged on one side of the guard plate (2). A filter conveyor belt (23) is connected between the two rollers (22). The surface of the filter conveyor belt (23) is movably connected to the bottom of the brush (9) and the surface of the downward moving rod (17), respectively.

4. The cleaning apparatus for preparing recycled polyester chips according to claim 1, characterized in that: A U-shaped frame (24) is fixedly installed above the guard plate (2). A straight pipe (26) is fixedly installed on the top of the U-shaped frame (24). The bottom of the straight pipe (26) passes through the upper and lower sides of the U-shaped frame (24) and a cleaning head (25) is fixedly installed thereon. One end of the straight pipe (26) is fixedly connected to a pipe (27). A water collection tank (29) is fixedly installed on one side of the support leg (1). A water pump (28) is fixedly installed on one side of the water collection tank (29). One end of the water pump (28) extends into the interior of the water collection tank (29). The other end of the water pump (28) is fixedly connected to the pipe (27). A partition (34) is fixedly installed between the two sides inside the water collection tank (29). The partition (34) divides the interior space of the water collection tank (29) into two parts.

5. The cleaning apparatus for preparing recycled polyester chips according to claim 1, characterized in that: A baffle (30) and a guide plate (31) are fixedly installed between the two guard plates (2). The baffle (30) is located above the filter conveyor belt (23). A collection box (32) is movably installed on one side of the support leg (1). The collection box (32) is located below the guide plate (31).

6. The cleaning apparatus for preparing recycled polyester chips according to claim 1, characterized in that: A protective cover (19) is fixedly installed on one side of the guard plate (2), and the protective cover (19) is located outside the motor (20).

7. The cleaning apparatus for preparing recycled polyester chips according to claim 1, characterized in that: A limiting roller (33) is rotatably installed between the two guard plates (2). There are two limiting rollers (33) and they are evenly arranged on one side of the guard plate (2). The limiting roller (33) is movably connected to the filter conveyor belt (23) and located at the bottom of the filter conveyor belt (23). A limiting rod (11) is fixedly installed on one side of the guard plate (2). A moving block (10) is movably sleeved on the outer surface of the limiting rod (11). The moving block (10) is fixedly connected to the sleeve (7).