A centralized feeding device for plastic pellets

By designing a centralized plastic pellet feeding device with screening, feeding, anti-clogging, and discharge components, the problem of plastic pellets getting stuck in the screen holes is solved, achieving efficient material removal and feeding operations.

CN224446515UActive Publication Date: 2026-07-03QINGDAO ZHONGXINYUAN PLASTIC SALES CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
QINGDAO ZHONGXINYUAN PLASTIC SALES CO LTD
Filing Date
2026-01-22
Publication Date
2026-07-03

AI Technical Summary

Technical Problem

In existing plastic pellet feeding devices, some sizes of plastic pellets are easily stuck in the holes of the screening components during vibration screening, making them difficult to remove and affecting subsequent feeding operations.

Method used

A centralized feeding device for plastic granules was designed, comprising a screening and feeding component, an anti-clogging component, and a discharge component. The device uses a vibrating motor to drive the screen plate to vibrate and screen, the anti-clogging component to clean the screening components, and the discharge component to discharge impurities, thereby achieving rapid removal of stuck materials.

Benefits of technology

It effectively solves the problem of plastic granules getting stuck in the screen holes, improves the working efficiency and practicality of the feeding equipment, and simplifies the operation process.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model relates to the field of material feeding equipment technology, specifically to a centralized feeding device for plastic granules, including a box body. A support frame is installed at the bottom of the box body, and a feed hood is embedded at the top of the box body. A screening and discharge mechanism is installed inside the box body. The screening and discharge mechanism includes a screening and feeding component, an anti-clogging component, and a discharge component. The screening and feeding component is used to remove the material after screening. The anti-clogging component is used to clean the screening parts of the screening and feeding component. The discharge component is used to discharge the screened impurities. The screening and feeding component includes a vibration groove opened on one side of the inner wall of the box body. A horizontal plate is slidably connected to the inner side of the vibration groove. The cross-section of the horizontal plate is L-shaped. This utility model has a simple structure and is easy to operate. It can quickly remove the material stuck inside the screen holes during actual processing, further improving work efficiency and practicality.
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Description

Technical Field

[0001] This utility model relates to the field of feeding equipment technology, specifically to a centralized feeding equipment for plastic granules. Background Technology

[0002] A plastic granule feeding device is an auxiliary device used in plastic processing. It is widely used in the field of plastic processing. The traditional feeding method is to move the mixed plastic raw materials from the mixing section to the blown film section, and then add the plastic granules into the hopper of the blown film machine. The existing feeding device cannot filter out fine plastic particles and dust, which easily leads to insufficient purity of plastic particles entering the dryer. Moreover, the plastic particles are prone to sticking together, which affects subsequent processing. Therefore, a plastic granule feeding device is needed to solve the problem of low purity of plastic particles during plastic granule feeding.

[0003] To solve the above-mentioned technical problems, Chinese Patent No. CN216323257U discloses a plastic pellet feeding device for plastic product processing equipment, which includes a mounting box, a shaking mechanism provided on one side of the screen box, a motor a fixed on the inner side wall of the bottom of the mounting box and connected to the shaking mechanism, and a material pouring mechanism provided at the end of the screen box away from the shaking mechanism.

[0004] Although the existing technical solution described above allows for the convenient and efficient removal of plastic granules after impurity removal and screening from the filter plate, some plastic granules of certain sizes may get stuck in the holes of the screening component during vibration screening. This makes it difficult for workers to remove the material from the holes, thus affecting subsequent feeding operations. Utility Model Content

[0005] The purpose of this utility model is to provide a centralized feeding device for plastic granules, in order to solve the problem mentioned in the background art that when the feeding device is used for vibration screening, some plastic granules of certain sizes will get stuck in the holes of the screening component, making it difficult for workers to remove the material from the holes, thus affecting subsequent feeding operations.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A centralized feeding device for plastic granules includes a box body, a support frame installed at the bottom of the box body, a feed hood embedded at the top of the box body, and a screening and discharge mechanism installed inside the box body. The screening and discharge mechanism includes a screening and feeding component, an anti-clogging component, and a discharge component. The screening and feeding component is used to screen and remove the material, the anti-clogging component is used to clean the screening parts of the screening and feeding component, and the discharge component is used to discharge the screened impurities.

[0008] As a preferred embodiment of this utility model, the screening and feeding assembly includes a vibration groove formed on one side of the inner wall of the box, a horizontal plate slidably connected to the inner side of the vibration groove, the cross section of the horizontal plate being L-shaped, a vibration motor installed at the top of the horizontal plate, and a first spring installed between the bottom two ends of the horizontal plate and the inner wall of the vibration groove. A sieve plate is installed at the end of the horizontal plate away from the vibration groove, and multiple sets of sieve holes are arranged inside the sieve plate.

[0009] As a preferred embodiment of this utility model, a fixed cylinder is embedded in one end of the box body, and a first threaded rod is rotatably connected to one end of the inner wall of the fixed cylinder. A movable cylinder is threadedly connected to the outer side of the first threaded rod. The movable cylinder and the inner side of the fixed cylinder are slidably connected. A limiting groove is opened on both sides of the movable cylinder inside the fixed cylinder. A limiting block is installed at both ends of the outer wall of the movable cylinder and is slidably connected to the limiting groove.

[0010] As a preferred embodiment of this utility model, a feeding plate is fixedly connected to one end of the movable cylinder, a first motor is installed on one side of the outer wall of the fixed cylinder, the driving end of the first motor extends to the inner side of the rotating groove and is fixedly connected to one end of the first threaded rod, a feeding brush is installed at the bottom end of the feeding plate, a discharge groove is opened on the other side of the outer wall of the box, a receiving box is installed on the outer wall of the box at the discharge groove, a conveying pipe is embedded at the bottom end of the receiving box, and a valve is installed on the conveying pipe.

[0011] As a preferred embodiment of this utility model, the anti-clogging component includes an adjustment groove located inside the housing below the vibration groove. A second spring is installed at the bottom of the inner side of the adjustment groove, a rack is installed at the top of the second spring, a connecting plate is installed on one side of the rack, a push plate is installed at the other end of the connecting plate, and multiple sets of discharge rods are arranged at the top of the push plate. The discharge rods are slidably connected to the filter holes of the sieve plate.

[0012] As a preferred embodiment of this utility model, a discharge chute is provided between two adjacent sets of discharge rods, and a rotating chute is provided inside the box on one side of the adjusting chute. A missing gear is rotatably connected to the inner side of the rotating chute. The missing gear is meshed with a rack. There is no tooth block on one side of the surface of the missing gear. A second motor is installed on the outer wall of the box corresponding to the rotating chute. The drive end of the second motor extends to the inner side of the rotating chute and is fixedly connected to one side of the missing gear.

[0013] As a preferred embodiment of this utility model, the discharge assembly includes a guide groove formed on the inner wall of the box below the discharge trough, a movable rod fixedly connected to the inner side of the guide groove, a guide plate fixedly sleeved on the outer side of the movable rod, a conveying trough formed on the outer wall of the box below the adjustment trough, and a conveyor installed on the inner side of the conveying trough.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] In this invention, the vibrating motor, in conjunction with the horizontal plate and the first spring, drives the screen plate to vibrate. The vibration causes impurities to fall through the screen holes and into the lower part of the screen. The screening and feeding assembly is used to remove the material after screening. The anti-blocking assembly is used to clean the screening parts of the screening and feeding assembly. The discharge assembly is used to discharge the screened impurities. The structure is simple and easy to operate. In actual processing, it can quickly remove the material stuck inside the screen holes, further improving work efficiency and practicality. Attached Figure Description

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

[0017] Figure 2 This is a schematic cross-sectional view of the box body of this utility model;

[0018] Figure 3 This is a partial cross-sectional view of the anti-blocking component of this utility model.

[0019] In the diagram: 1. Box body; 2. Support frame; 3. Feed hood; 4. Horizontal plate; 5. Vibration motor; 6. First spring; 7. Screen plate; 8. First threaded rod; 9. First motor; 10. Feeding plate; 11. Feeding brush; 12. Receiving box; 13. Conveying pipe; 14. Second spring; 15. Rack; 16. Push plate; 17. Discharge rod; 18. Gear missing; 19. Guide plate; 20. Conveyor; 21. Fixed cylinder; 22. Movable cylinder. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0021] Example: Please refer to Figures 1-3 This utility model provides a technical solution:

[0022] A centralized feeding device for plastic granules includes a housing 1, a support frame 2 installed at the bottom of the housing 1, and a feed hood 3 embedded at the top of the housing 1. A screening and discharge mechanism is installed inside the housing 1, comprising a screening and feeding component, an anti-blocking component, and a discharge component. The screening and feeding component is used to screen and remove the material, the anti-blocking component is used to clean the screening parts of the screening and feeding component, and the discharge component is used to discharge the screened impurities. In use, the device features a simple structure, convenient operation, and can quickly remove material stuck inside the screen holes during actual processing, further improving work efficiency and practicality.

[0023] In this embodiment, as Figure 1 , Figure 2 and Figure 3 As shown, the screening and feeding assembly includes a vibrating groove on one side of the inner wall of the housing 1. A horizontal plate 4 is slidably connected to the inner side of the vibrating groove. The cross section of the horizontal plate 4 is L-shaped. A vibrating motor 5 is installed at the top of the horizontal plate 4. A first spring 6 is installed between the bottom two ends of the horizontal plate 4 and the inner wall of the vibrating groove. A screen plate 7 is installed at the end of the horizontal plate 4 away from the vibrating groove. Multiple sets of screen holes are arranged inside the screen plate 7. First, the vibrating motor 5 is started to drive the screen plate 7 to vibrate in conjunction with the horizontal plate 4 and the first spring 6. The vibration allows the impurities to fall below through the screen holes. Then, the second motor is started to drive the gear 18 to rotate, which drives the rack 15 to move upward, and the second spring 14 is also stretched.

[0024] In this embodiment, as Figure 1 , Figure 2 and Figure 3 As shown, the anti-clogging component includes an adjustment groove located inside the housing 1 below the vibration groove. A second spring 14 is installed at the bottom of the inner side of the adjustment groove. A rack 15 is installed at the top of the second spring 14. A connecting plate is installed on one side of the rack 15, and a push plate 16 is installed at the other end of the connecting plate. Multiple sets of discharge rods 17 are arranged on the top of the push plate 16. The discharge rods 17 are slidably connected to the filter holes of the screen plate 7. Then, the push plate 16 drives each set of discharge rods 17 into the inner side of the screen hole, pushing out the material stuck inside the screen hole. After the material is cleared out, the missing gear 18 continues to rotate, so that the toothless block is close to the rack 15. Then, the second spring 14 can rebound and drive the rack 15 to reset.

[0025] In this embodiment, as Figure 1 , Figure 2 and Figure 3As shown, a fixed cylinder 21 is embedded in one end of the housing 1. A first threaded rod 8 is rotatably connected to one end of the inner wall of the fixed cylinder 21. A movable cylinder 22 is threadedly connected to the outer side of the first threaded rod 8. The movable cylinder 22 is slidably connected to the inner side of the fixed cylinder 21. Limiting grooves are provided on both sides of the movable cylinder 22 inside the fixed cylinder 21. Limiting blocks that are slidably connected to the limiting grooves are installed at both ends of the outer wall of the movable cylinder 22. A feeding plate 10 is fixedly connected to one end of the movable cylinder 22. A first motor 9 is installed on one side of the outer wall of the fixed cylinder 21. The drive end of the first motor 9 extends to the rotating part. The inner side of the moving groove is fixedly connected to one end of the first threaded rod 8. A feeding brush 11 is installed at the bottom of the feeding plate 10. A discharge groove is opened on the other side of the outer wall of the box 1. A receiving box 12 is installed on the outer wall of the box 1 at the discharge groove. A conveying pipe 13 is embedded at the bottom of the receiving box 12. A valve is installed on the conveying pipe 13. Then, the first motor 9 is started to drive the first threaded rod 8 to rotate, so that the moving cylinder 22 moves in conjunction with the limiting groove and the limiting block, so that the feeding plate 10 drives the feeding brush 11 to sweep the remaining granular material to the discharge groove and slide into the inner side of the receiving box 12 for collection.

[0026] In this embodiment, as Figure 1 , Figure 2 and Figure 3 As shown, the discharge assembly includes a guide groove located on the inner wall of the housing 1 below the discharge trough. A movable rod is fixedly connected to the inner side of the guide groove, and a guide plate 19 is fixedly sleeved on the outer side of the movable rod. A conveying trough is provided on the outer wall of the housing 1 below the adjustment trough. A conveyor 20 is installed inside the conveying trough. Furthermore, opening the valve can also allow the material inside the receiving box 12 to be discharged along the conveying pipe 13. The falling impurities fall onto the surface of the guide plate 19 and finally slide onto the surface of the conveyor 20 for outward discharge.

[0027] The implementation principle of a centralized feeding device for plastic granules in this application embodiment is as follows: Starting the vibration motor 5, in conjunction with the horizontal plate 4 and the first spring 6, drives the screen plate 7 to vibrate. This vibration causes impurities to fall through the screen holes. Starting the second motor drives the missing gear 18 to rotate, causing it to move the rack 15 upwards. Simultaneously, the second spring 14 is stretched. The push plate 16 drives each set of discharge rods 17 into the inner side of the screen holes, pushing out materials stuck inside. After clearing the materials, the missing gear 18 continues to rotate, allowing the toothless block to... When the rack 15 is close, the second spring 14 can rebound and drive the rack 15 to reset. Then, the first motor 9 is started to drive the first threaded rod 8 to rotate, so that the movable cylinder 22 moves in conjunction with the limiting groove and the limiting block. The feeding plate 10 drives the feeding brush 11 to sweep the remaining granular material to the discharge trough and slide into the inside of the receiving box 12 for collection. Opening the valve can also allow the material inside the receiving box 12 to be discharged along the conveying pipe 13. The falling impurities fall onto the surface of the guide plate 19 and finally slide onto the surface of the conveyor 20 for outward conveying and discharge.

[0028] 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 pellets central feeding device comprising a box (1), characterized in that: A support frame (2) is installed at the bottom of the box (1), and a feed hood (3) is embedded at the top of the box (1). A screening and discharge mechanism is installed inside the box (1). The screening and discharge mechanism includes a screening and feeding component, an anti-blocking component, and a discharge component. The screening and feeding component is used to remove the material after screening. The anti-blocking component is used to clean the screening parts of the screening and feeding component. The discharge component is used to discharge the screened impurities.

2. The plastic particle central feeding device according to claim 1, characterized in that: The screening and feeding assembly includes a vibration groove on one side of the inner wall of the box (1), a horizontal plate (4) is slidably connected to the inner side of the vibration groove, the cross section of the horizontal plate (4) is L-shaped, a vibration motor (5) is installed at the top of the horizontal plate (4), a first spring (6) is installed between the bottom two ends of the horizontal plate (4) and the inner wall of the vibration groove, and a sieve plate (7) is installed at the end of the horizontal plate (4) away from the vibration groove, and multiple sets of sieve holes are arranged inside the sieve plate (7).

3. The plastic pellet mass feed device of claim 2, wherein: A fixed cylinder (21) is embedded in one end of the box (1). A first threaded rod (8) is rotatably connected to one end of the inner wall of the fixed cylinder (21). A movable cylinder (22) is threaded to the outer side of the first threaded rod (8). The movable cylinder (22) is slidably connected to the inner side of the fixed cylinder (21). A limiting groove is provided on both sides of the movable cylinder (22) inside the fixed cylinder (21). A limiting block is installed at both ends of the outer wall of the movable cylinder (22) and is slidably connected to the limiting groove.

4. The plastic pellet mass feed device of claim 3, wherein: One end of the movable cylinder (22) is fixedly connected to a feeding plate (10). A first motor (9) is installed on one side of the outer wall of the fixed cylinder (21). The driving end of the first motor (9) extends to the inner side of the rotating groove and is fixedly connected to one end of the first threaded rod (8). A feeding brush (11) is installed at the bottom end of the feeding plate (10). A discharge groove is opened on the other side of the outer wall of the box (1). A receiving box (12) is installed on the outer wall of the box (1) at the discharge groove. A conveying pipe (13) is embedded at the bottom end of the receiving box (12). A valve is installed on the conveying pipe (13).

5. The plastic pellet mass feed device of claim 4, wherein: The anti-clogging component includes an adjustment groove located inside the housing (1) below the vibration groove. A second spring (14) is installed at the bottom of the inner side of the adjustment groove. A rack (15) is installed at the top of the second spring (14). A connecting plate is installed on one side of the rack (15). A push plate (16) is installed at the other end of the connecting plate. Multiple sets of discharge rods (17) are arranged at the top of the push plate (16). The discharge rods (17) are slidably connected to the filter holes of the sieve plate (7).

6. The plastic pellet mass feed device of claim 5, wherein: A discharge chute is provided between two adjacent sets of discharge rods (17). A rotating chute is provided inside the box (1) on one side of the adjustment chute. A missing gear (18) is rotatably connected to the inner side of the rotating chute. The missing gear (18) is meshed with the rack (15). There is no tooth block on one side of the surface of the missing gear (18). A second motor is installed on the outer wall of the box (1) corresponding to the rotating chute. The drive end of the second motor extends to the inner side of the rotating chute and is fixedly connected to one side of the missing gear (18).

7. The plastic pellet mass feed device of claim 6, wherein: The discharge assembly includes a guide groove opened on the inner wall of the box (1) below the discharge trough. A movable rod is fixedly connected to the inner side of the guide groove, and a guide plate (19) is fixedly sleeved on the outer side of the movable rod. A conveying trough is opened on the outer wall of the box (1) below the adjustment trough, and a conveyor (20) is installed on the inner side of the conveying trough.