Plastic particle screening device convenient to clean

Abstract

The utility model relates to the technical field of plastic production, in particular to a plastic particle screening device convenient to clean, and aims to solve the technical problems that particles blocking a screen are difficult to clean, and a large amount of time and energy need to be consumed during manual cleaning. Comprising a conical surface sieve plate, a vortex plate, a vortex plate support, a shell, a bearing, a separation chamber, a first discharging opening, a rack and a feeding pipe, the conical surface sieve plate and the vortex plate which keep reciprocating rotation are matched, large particles and small particles of plastic are separated, under the guiding effect of the vortex plate, the stroke of the plastic particles on the conical surface sieve plate is longer, the screening effect is better, and the screening efficiency is improved. When the screen holes are blocked by large particles, the rotating conical surface screen plate drives the large particles to make contact with the fixed vortex plate, the vortex plate scrapes the large particles out and then guides and discharges the large particles, the screen holes are not blocked any more, and therefore the screening efficiency is greatly improved while blockage clearing is achieved in the screening process, shutdown is not needed, and manual clearing is not needed.

Description

Technical Field

[0001] This utility model relates to the field of plastic production technology, specifically to a plastic particle screening device that is easy to clean. Background Technology

[0002] In the production and processing of plastic products, plastic granules are a crucial basic raw material. Before entering subsequent processing stages, plastic raw materials usually need to be crushed to transform large pieces of plastic into granules for subsequent molding. However, the crushed plastic granules vary in size, and larger granules may contain impurities that need to be separated from smaller granules and crushed again. To meet the stringent requirements for uniformity and purity of plastic granules in production, a screening process is essential.

[0003] The crushed plastic particles have irregular shapes, which can easily intertwine and pile up during the screening process, clogging the screen. For example, long or flat plastic particles can easily get stuck in the screen mesh. As the screening time increases, the clogging becomes more severe, significantly reducing screening efficiency. Moreover, the particles clogging the screen are difficult to clean, requiring a lot of time and effort for manual cleaning. Utility Model Content

[0004] This invention addresses the technical problem of difficult-to-clean plastic particle screening devices that clog screens, requiring significant time and effort for manual cleaning.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a plastic particle screening device that is easy to clean, comprising: a conical screen plate, the outer conical surface of the conical screen plate gradually approaches the axis from bottom to top, a vortex plate is in contact with the outer conical surface of the conical screen plate, the upper part of the vortex plate is connected to a vortex plate support, the vortex plate support is connected to the outer shell, the inner part of the outer shell is connected to the separation chamber through a bearing, the upper end of the separation chamber is connected to the lower edge of the conical screen plate, the lower end of the separation chamber is connected to a discharge port, the discharge port is connected to a reciprocating power source, the reciprocating power source can drive the separation chamber and the conical screen plate to reciprocate around the axis through the discharge port, the outer shell is connected to the frame, and a feed pipe is provided at the upper center of the vortex plate, the feed pipe is fixedly connected to the outside.

[0006] Preferably, the reciprocating power includes a high-frequency reciprocating cylinder, the telescopic end of the high-frequency reciprocating cylinder is hinged to a lug on the discharge port, and the fixed end of the high-frequency reciprocating cylinder is hinged to a lug on the frame.

[0007] Preferably, the inner wall of the separation chamber above the bearing is connected to an inclined plate, and a discharge port is provided on the side wall of the separation chamber at the lowest point of the inclined plate.

[0008] Preferably, a water tank is connected to the upper end of the outer shell, and a liquid inlet pipe and an air inlet pipe are connected to the water tank. The liquid inlet pipe and the air inlet pipe are respectively connected to a liquid pump and an air pump. Multiple nozzles are evenly distributed and connected to the bottom wall of the water tank.

[0009] Compared with the prior art, the beneficial effects of this utility model are:

[0010] By cooperating with the reciprocating rotating conical screen plate and the vortex plate, large plastic particles are separated from small particles. Under the guidance of the vortex plate, the plastic particles travel a longer distance on the conical screen plate, resulting in better screening effect. When large particles clog the screen holes, the rotating conical screen plate drives the large particles to contact the fixed vortex plate. The vortex plate scrapes out the large particles and guides them out, so that the screen holes are no longer clogged. In this way, the clogging is cleared during the screening process without stopping the machine or requiring manual cleaning, which greatly improves the screening efficiency.

[0011] By spraying water directly into the lower part through the nozzle, the screen holes are cleared of blockages, and the friction between the particles and the conical screen plate is reduced, preventing large particles from getting stuck in the screen holes and thus preventing blockage. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of the present invention. Figure 1 ;

[0013] Figure 2 This is a schematic cross-sectional view of the structure of this utility model;

[0014] Figure 3 This is a schematic diagram of the structure of the present invention. Figure 2 .

[0015] In the diagram: 1. Conical screen plate; 2. Vortex plate; 3. Vortex plate support; 4. Outer shell; 5. Bearing; 6. Separation chamber; 7. Discharge port 1; 8. Frame; 9. Feed pipe; 10. High-frequency reciprocating cylinder; 11. Inclined plate; 12. Discharge port 2; 13. Water tank; 14. Liquid inlet pipe; 15. Air inlet pipe; 16. Nozzle. Detailed Implementation

[0016] 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.

[0017] The rotary connection described in this device refers to the axial fixation of the bearing by mounting the bearing on the shaft, with a spring retaining ring groove provided on the shaft or shaft hole, and the rotation achieved by locking the elastic retaining ring in the retaining ring groove; the hinge connection refers to the connection method that allows movement through connecting parts such as hinges, pins, and short shafts.

[0018] The present invention will now be described in detail with reference to the accompanying drawings. Example

[0019] The following is in conjunction with the appendix Figures 1-3 This embodiment describes a plastic particle screening device that is easy to clean, comprising: a conical screen plate 1, the outer conical surface of which gradually approaches the axis from bottom to top, a vortex plate 2 in contact with the outer conical surface of the screen plate 1, the upper part of the vortex plate 2 being connected to a vortex plate support 3, the vortex plate support 3 being connected to a housing 4, the housing 4 being connected to a separation chamber 6 via a bearing 5, the upper end of the separation chamber 6 being connected to the lower edge of the conical screen plate 1, the lower end of the separation chamber 6 being connected to a discharge port 7, the discharge port 7 being connected to a reciprocating power source, the reciprocating power source being able to drive the separation chamber 6 and the conical screen plate 1 to reciprocate around the axis via the discharge port 7, the housing 4 being externally connected to a frame 8, and a feed pipe 9 being provided at the upper center of the vortex plate 2, the feed pipe 9 being fixedly connected to the outside.

[0020] In operation, the reciprocating power is activated, driving the separation chamber 6 and the conical screen plate 1 to vibrate back and forth around the axis through the discharge port 7. The crushed plastic particles are discharged to the center of the vortex plate 2 through the feed pipe 9. The plastic particles slide downwards along the conical surface of the conical screen plate 1. By maintaining the reciprocating rotation of the conical screen plate 1 and cooperating with the vortex plate 2, the plastic particles travel a longer distance on the conical screen plate 1 under the guidance of the vortex plate 2, resulting in better screening effect. This separates large and small plastic particles. Small particles fall through the screen holes into the separation chamber 6 and are discharged through the discharge port 7. When large particles clog the screen holes, the rotating conical screen plate 1 causes the large particles to come into contact with the fixed vortex plate 2. The vortex plate 2 scrapes the large particles out and guides them out, preventing the screen holes from clogging. This achieves clearing during the screening process without stopping the machine or requiring manual cleaning, greatly improving screening efficiency. Large particles fall through the conical screen plate 1 and are collected in the space between the outer shell 4 and the separation chamber 6.

[0021] The reciprocating power includes a high-frequency reciprocating cylinder 10. The telescopic end of the high-frequency reciprocating cylinder 10 is hinged to the lug on the discharge port 7, and the fixed end of the high-frequency reciprocating cylinder 10 is hinged to the lug on the frame 8.

[0022] The high-frequency reciprocating cylinder 10 reciprocates and extends, driving the hinged discharge port 7 to rotate reciprocally, thus completing the screening.

[0023] An inclined plate 11 is connected to the inner wall of the separation chamber 6 above the bearing 5. A discharge port 2 12 is opened on the side wall of the separation chamber 6 at the lowest point of the inclined plate 11.

[0024] Large particles fall onto the inclined plate 11 and are discharged through the discharge port 12 under the guidance of the inclined plate 11.

[0025] The upper end of the outer shell 4 is connected to a water tank 13. The water tank 13 is connected to a liquid inlet pipe 14 and an air inlet pipe 15. The liquid inlet pipe 14 and the air inlet pipe 15 are respectively connected to a liquid pump and an air pump. Multiple nozzles 16 are evenly distributed and connected around the bottom wall of the water tank 13.

[0026] The liquid pump and air pump inject water into the water tank 13 through the liquid inlet pipe 14 and the air inlet pipe 15. The water is discharged through the nozzle 16 and sprayed directly onto the lower conical screen plate 1 through 13. This clears the blockage of the screen holes and reduces the friction between the particles and the conical screen plate 1, preventing large particles from getting stuck in the screen holes and thus preventing blockage.

[0027] In the description of this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0028] All standard parts used in this invention can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art, and the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here.

[0029] Although embodiments of the 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 invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A plastic granule screening device that is easy to clean, characterized in that: include: The conical screen plate (1) has an outer conical surface that gradually approaches the axis from bottom to top. The outer conical surface of the conical screen plate (1) is in contact with a vortex plate (2). The upper part of the vortex plate (2) is connected to the vortex plate support (3). The vortex plate support (3) is connected to the outer shell (4). The inner part of the outer shell (4) is connected to the separation chamber (6) through the bearing (5). The upper end of the separation chamber (6) is connected to the lower edge of the conical screen plate (1). The lower end of the separation chamber (6) is connected to the discharge port (7). The discharge port (7) is connected to the reciprocating power. The reciprocating power can drive the separation chamber (6) and the conical screen plate (1) to vibrate back and forth around the axis through the discharge port (7). The outer shell (4) is connected to the frame (8). The upper part of the center of the vortex plate (2) is provided with a feed pipe (9). The feed pipe (9) is fixedly connected to the outside.

2. The easy-to-clean plastic particle screening device according to claim 1, characterized in that: The reciprocating power includes a high-frequency reciprocating cylinder (10), the telescopic end of the high-frequency reciprocating cylinder (10) is hinged to the lug on the discharge port (7), and the fixed end of the high-frequency reciprocating cylinder (10) is hinged to the lug on the frame (8).

3. The easy-to-clean plastic particle screening device according to claim 1, characterized in that: An inclined plate (11) is connected to the inner wall of the separation chamber (6) at the upper part of the bearing (5). A discharge port (12) is opened on the side wall of the separation chamber (6) at the lowest point of the inclined plate (11).

4. The easy-to-clean plastic particle screening device according to claim 1, characterized in that: The upper end of the outer shell (4) is connected to a water tank (13), and the water tank (13) is connected to a liquid inlet pipe (14) and an air inlet pipe (15). The liquid inlet pipe (14) and the air inlet pipe (15) are respectively connected to a liquid pump and an air pump. Multiple nozzles (16) are evenly distributed and connected around the bottom wall of the water tank (13).

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