Screening device for high-density polyethylene regenerated particles

Abstract

The utility model belongs to the technical field of high-density polyethylene regenerated particles, and discloses a high-density polyethylene regenerated particle screening device which comprises a base, a plurality of first supports are installed at the top end of the base, and a screening frame is installed at the top ends of the first supports through springs. A plurality of pairs of first sliding grooves are sequentially formed in the two sides of the interiors of the multiple screening frames from top to bottom, a screen is detachably installed in each first sliding groove, the mesh number of each screen is gradually increased from top to bottom, and a discharging opening is formed in the position, parallel to each screen, of each screening frame. According to the device, the multi-layer variable-density screen and the intelligent vibration system are adopted, the screening condition of the screen is monitored, the screen is prevented from being blocked, the screening precision is improved, through the arrangement of the feeding assembly, the discharging hopper and other structures, it is guaranteed that materials are evenly distributed and orderly collected, and environmental pollution is reduced; and therefore, the flexibility and convenience of the screening device for the high-density polyethylene regenerated particles are improved.

Description

Technical Field

[0001] This utility model belongs to the field of high-density polyethylene recycled pellet technology, and more specifically, it relates to a screening device for high-density polyethylene recycled pellets. Background Technology

[0002] High-density polyethylene (HDPE) recycled pellets are small pellets made from recycled, cleaned and processed waste HDPE materials. HDPE is a common thermoplastic that is widely used in the manufacture of various products, such as plastic bottles, pipes, packaging materials, containers, etc. Due to its durability and recyclability, HDPE is widely recycled and reprocessed to make recycled pellets for the production of new plastic products.

[0003] Currently, most screening devices for high-density polyethylene recycled granules use a single-plane screen structure, which easily leads to material accumulation and blockage. Due to the material's properties, its viscosity limits the screening accuracy. At the same time, existing devices have limited screening accuracy, making it difficult to perform fine grading. The vibration mode is unreasonable, parameter adjustment is difficult, screen replacement is cumbersome and lacks flexible adjustment methods, making it difficult to adapt to the characteristics of different batches of materials and resulting in low production flexibility.

[0004] Therefore, in view of this, we have studied and improved the existing structure and its shortcomings, and provided a screening device for high-density polyethylene recycled particles, in order to achieve a more practical purpose. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model provides a screening device for high-density polyethylene recycled granules, which is achieved by the following specific technical means:

[0006] A screening device for high-density polyethylene recycled granules includes a base, with a plurality of first supports mounted on the top of the base. A screening frame is spring-loaded onto the top of each of the first supports. The inner sides of each screening frame are provided with a plurality of pairs of first grooves arranged sequentially from top to bottom. A screen can be detachably installed in each first groove, and the mesh size of each screen increases from top to bottom. Each screening frame has a discharge port at a position parallel to each screen, and one end of each screen passes through the discharge port and extends to the outside of the screening frame. The inner side of the screening frame is in position... A detection sensor is installed above each of the screens. A second bracket is installed on one side of the top of the base. A feeding assembly is installed on the top of the second bracket and is located directly above the screening frame. Several third brackets are installed on the top of the base. A discharge funnel is installed on the top of the several third brackets. A guide pipe is installed at the bottom of the discharge funnel. A fan is installed on one side of the guide pipe. A collection container is installed on one side of the top of the base, and the other end of the guide pipe extends into the collection container. A dust cover is installed on the top of the collection container.

[0007] Furthermore, several first vibration motors are installed on both sides of the screening frame at positions parallel to each of the screens.

[0008] Furthermore, each of the screens has threaded holes at both ends on both sides.

[0009] Furthermore, fixing bolts are installed on both sides of the screening frame at positions that match each of the threaded holes, and the size of the fixing bolts matches the size of the threaded holes.

[0010] Furthermore, the feeding assembly includes a feeding funnel and a pair of mounting plates. The feeding funnel is installed on one side of the second support at a position directly above the screening frame. The pair of mounting plates are symmetrically installed on one side of the second support at a position directly below the screening frame. Each of the tops of the pair of mounting plates is equipped with a guide plate by several springs.

[0011] Furthermore, a second vibration motor is installed on one side of each of the guide ramps.

[0012] Furthermore, a collection box is installed on one side of the bottom end of the screening frame at a position below several of the discharge ports.

[0013] Furthermore, a controller is installed on one side of the top of the base.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] The high-density polyethylene recycled granule screening device of this utility model, through the coordinated use of a base, a first support, a screening frame, a first chute, a screen, a discharge port, a detection sensor, a second support, a third support, a discharge funnel, a guide pipe, a fan, a collection container, a dust cover, a first vibrating motor, threaded holes, fixing bolts, a feeding funnel, a mounting plate, a guide inclined plate, a second vibrating motor, a collection box, and a controller, adopts a multi-layer variable density screen and an intelligent vibration system to monitor the screening status of the screen, prevent screen blockage, and improve screening accuracy. Through the design of the feeding component and the discharge funnel, it ensures that the material is evenly distributed and collected in an orderly manner, reducing environmental pollution, thereby improving the flexibility and convenience of the high-density polyethylene recycled granule screening device. Attached Figure Description

[0016] Figure 1 This is a three-dimensional schematic diagram of the present invention.

[0017] Figure 2 This is a three-dimensional schematic diagram of the screen structure of this utility model.

[0018] Figure 3 This is a frontal sectional view of the present invention.

[0019] Figure 4 This is a side sectional view of the present invention.

[0020] Figure 5 This is the utility model Figure 1 An enlarged schematic diagram of part A in the middle.

[0021] In the diagram, the correspondence between component names and drawing numbers is as follows:

[0022] 1. Base; 2. First support; 3. Screening frame; 4. First chute; 5. Screen; 6. Discharge port; 7. Detection sensor; 8. Second support; 9. Third support; 10. Discharge funnel; 11. Guide pipe; 12. Fan; 13. Collection container; 14. Dust cover; 15. First vibrating motor; 16. Threaded hole; 17. Fixing bolt; 18. Feed funnel; 19. Mounting plate; 20. Guide ramp; 21. Second vibrating motor; 22. Collection box; 23. Controller. Detailed Implementation

[0023] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0024] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. In addition, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0025] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0026] Example:

[0027] As attached Figure 1 To be continued Figure 5 As shown:

[0028] This utility model provides a screening device for high-density polyethylene recycled granules, including a base 1. A plurality of first supports 2 are mounted on the top of the base 1. Screening frames 3 are spring-loaded onto the tops of the first supports 2. A plurality of pairs of first sliding grooves 4 are sequentially arranged from top to bottom on both sides inside the screening frames 3. A screen 5 can be detachably installed in each first sliding groove 4, and the mesh size of each screen 5 increases from top to bottom. Each screening frame 3 has a discharge port 6 at a position parallel to each screen 5, and one end of each screen 5 passes through the discharge port 6 and extends to the outside of the screening frame 3. The inner side of the screening frame 3 is located at... A detection sensor 7 is installed above each screen 5. A second bracket 8 is installed on one side of the top of the base 1. A feeding component is installed on the top of the second bracket 8 and is located directly above the screening frame 3. Several third brackets 9 are installed on the top of the base 1. A discharge hopper 10 is installed on the top of the several third brackets 9. A guide pipe 11 is installed at the bottom of the discharge hopper 10. A fan 12 is installed on one side of the guide pipe 11. A collection container 13 is installed on one side of the top of the base 1, and the other end of the guide pipe 11 extends into the collection container 13. A dust cover 14 is installed on the top of the collection container 13.

[0029] The screening frame 3 has several first vibration motors 15 installed on both sides at positions parallel to each screen 5. The vibration of the first vibration motors 15 causes the screening frame 3 and the screens 5 inside to vibrate together, thereby achieving the screening of high-density polyethylene recycled particles of different sizes. At the same time, the detection sensor 7 can collect the material stacking status on the surface of the screen 5 in real time. When the device detects that the material stacking in a certain area has a tendency to block, it can automatically adjust the frequency and amplitude of the first vibration motor 15 in that area to increase the vibration intensity, so that the particles can be quickly loosened and redistributed, keeping the screen 5 unobstructed.

[0030] Each screen 5 has threaded holes 16 at both ends on both sides.

[0031] The screening frame 3 has fixing bolts 17 installed on both sides at positions matching each threaded hole 16, and the size of the fixing bolts 17 matches the size of the threaded holes 16. The screen 5 is fixed by sliding it to the designated position in the first groove 4 and screwing the fixing bolts 17 into the threaded holes 16. When the screen 5 needs to be replaced, the operator can remove the fixing bolts 17 to replace the screen 5.

[0032] The feeding assembly includes a feeding funnel 18 and a pair of mounting plates 19. The feeding funnel 18 is installed on one side of the second support 8 at a position directly above the screening frame 3. The pair of mounting plates 19 are symmetrically installed on one side of the second support 8 at a position directly below the screening frame 3. The top of each pair of mounting plates 19 is equipped with a guide plate 20 by several springs.

[0033] Each guide plate 20 is equipped with a second vibration motor 21 on one side. The second vibration motor 21 drives the guide plate 20 to vibrate. When the material enters the guide plate 20 from the feed hopper 18, the vibration of the guide plate 20 can make the falling particles evenly dispersed across the entire feed width, thereby improving the subsequent screening efficiency.

[0034] Among them, a collection box 22 is installed on one side of the bottom end of the screening frame 3, located below several discharge ports 6, to facilitate the recovery of materials filtered by the screen 5.

[0035] The base 1 has a controller 23 installed on one side of its top. The controller 23 is electrically connected to the first vibration motor 15, the second vibration motor 21, the detection sensor 7 and the electric fan, which facilitates the control of the overall circuit of the device.

[0036] The working principle of this embodiment is as follows: When using the screening device for high-density polyethylene recycled granules, the operator first puts the material into the feed funnel 18 and turns on the second vibration motor 21. The second vibration motor 21 drives a pair of guide inclined plates 20 to vibrate, so that the falling granules are evenly dispersed across the entire feed width. After the granules enter the upper screen 5, screening begins under the combined action of the first vibration motor 15 and the tilt angle of the screen 5. The first vibration motor 15 operates according to the preset initial parameters, driving the screen 5 to vibrate and screen. The detection sensor 7 monitors the thickness and distribution of the material on the screen 5 in real time and transmits the data to the controller 23. When the granule accumulation thickness in a certain area approaches the set threshold, the controller 23 immediately issues a warning. The system issues an instruction to increase the speed and amplitude of the vibration motor in that area, enhancing the vibration intensity and causing the particles to quickly loosen and redistribute, preventing blockages. Simultaneously, it continues to monitor the material conditions in other areas, ensuring that the entire screen 5 maintains a good screening state at all times. Particles that meet the mesh size requirements after being screened by the upper screen 5 fall through the screen 5 to the lower screen 5 for further screening, while large particles that do not meet the requirements are intercepted on the upper screen 5 and gradually move towards the discharge port 6 with vibration and are discharged. This process is repeated through multiple screens 5 to achieve high-precision grading and screening. The screened material falls into the guide pipe 11 through the discharge funnel 10, and the blower 12 is turned on to transport the material particles into the collection container 13, completing the recycling.

[0037] The embodiments of this utility model are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the utility model to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described in order to better illustrate the principles and practical applications of this utility model, and to enable those skilled in the art to understand this utility model and design various embodiments with various modifications suitable for a particular purpose.

Claims

1. A screening device for high-density polyethylene recycled granules comprising a base (1), characterized in that: The top end of the base (1) is provided with a plurality of first supports (2), the top end of the plurality of first supports (2) is provided with a screening frame (3) through springs, both sides of the plurality of screening frames (3) are sequentially provided with a plurality of pairs of first sliding grooves (4) from top to bottom, each first sliding groove (4) is detachably provided with a screen (5), the mesh number of each screen (5) increases from top to bottom, the screening frame (3) is provided with a discharge port (6) at a position parallel to each screen (5), one end of each screen (5) extends to the outside of the screening frame (3) through the discharge port (6), a detection sensor (7) is mounted on the inner side of the screening frame (3) at a position above each screen (5), a second support (8) is mounted on one side of the top end of the base (1), a feeding assembly is mounted on the top end of the second support (8) and located directly above the screening frame (3), a plurality of third supports (9) are mounted on the top end of the base (1), the top end of the plurality of third supports (9) is provided with a discharge funnel (10), the bottom end of the discharge funnel (10) is provided with a flow guide pipe (11), one side of the flow guide pipe (11) is provided with a fan (12), a collecting container (13) is mounted on one side of the top end of the base (1), and the other end of the flow guide pipe (11) extends into the collecting container (13), and a dust cover (14) is mounted on the top end of the collecting container (13).

2. The screening device for high-density polyethylene recycled particles according to claim 1, characterized in that: A plurality of first vibration motors (15) are mounted on both sides of the screening frame (3) at positions parallel to each screen (5).

3. The screening apparatus for high-density polyethylene recycled particles according to claim 1, characterized in that: Threaded holes (16) are formed at both ends of both sides of each screen (5).

4. The screening apparatus for high-density polyethylene recycled particles according to claim 3, characterized in that: Fixed bolts (17) are mounted on both sides of the screening frame (3) at positions matched with each threaded hole (16), and the size of the fixed bolt (17) is matched with the size of the threaded hole (16).

5. The screening apparatus for high-density polyethylene recycled particles according to claim 1, characterized in that: The feeding assembly comprises a feeding funnel (18) and a pair of mounting plates (19), the feeding funnel (18) is mounted on one side of the second support (8) at a position directly above the screening frame (3), and the pair of mounting plates (19) are symmetrically mounted on one side of the second support (8) at a position directly below the screening frame (3), and the top end of each mounting plate (19) is provided with a guide inclined plate (20) through a plurality of springs.

6. The screening apparatus for high-density polyethylene recycled particles according to claim 5, characterized in that: A second vibration motor (21) is mounted on one side of each guide inclined plate (20).

7. The screening apparatus for high-density polyethylene recycled particles according to claim 1, characterized in that: A collecting box (22) is mounted on one side of the bottom end of the screening frame (3) at a position below a plurality of discharge ports (6).

8. The screening apparatus for high-density polyethylene recycled particles according to claim 1, characterized in that: A controller (23) is mounted on one side of the top end of the base (1).

Images