Multi-layer filtering device for plastic particles

Abstract

The utility model relates to a multi-layer filtering device for plastic particles, which comprises a barrel with an upward opening and a sealing cover used for sealing the opening of the barrel, a feeding pipeline is connected with an inner cavity of the barrel through a feeding port, a plurality of filtering net bodies are uniformly arranged in the inner cavity of the barrel from top to bottom, a conical blanking cavity is arranged at the bottom of the barrel, and the conical blanking cavity is communicated with the sealing cover. The two sides, in the X-axis direction, of the filter screen body are inserted into the clamping grooves, the driving end of the bottom of the pushing air cylinder is connected with a pushing connecting rod located in the inner cavity of the barrel, and the pushing connecting rod can penetrate through the penetrating hole and then is connected with a clamping plate located below the filter screen body. The filter screen body can vibrate under the action of the pushing cylinder, so that the filtering speed of the filter screen body can be improved, and the production efficiency is improved. According to the utility model, a plurality of filter screen bodies can be synchronously vibrated at the same time, so that the overall production efficiency is further improved.

Description

Technical Field

[0001] This utility model relates to the technical field of plastic granule processing, and in particular to a multi-layer filtration device for plastic granules. Background Technology

[0002] Plastic granules have a wide range of applications. In daily life, recycled granules can be used to manufacture various plastic bags, buckets, basins, toys, furniture, stationery, and other household items and plastic products. In the clothing industry, they can be used to manufacture clothing, ties, buttons, and zippers. In building materials, recycled plastic granules are used to produce wood-plastic composite profiles, which are used to manufacture various building components, plastic doors and windows, etc. In the chemical industry, they can be used to make reaction vessels, pipes, containers, pumps, valves, etc., in chemical production sites where corrosion and wear are a concern. Plastic granules refer to granular plastics, generally classified into more than 200 types, with thousands of subcategories. Common plastic granules include general-purpose plastics, engineering plastics, and specialty plastics. General-purpose plastics include polypropylene, polyethylene, polyvinyl chloride, polystyrene, polyester, and polyurethane. Engineering plastics include nylon, polytetrafluoroethylene, polyoxymethylene, and polycarbonate. Filtration of raw materials is necessary during plastic processing.

[0003] Extensive research revealed that prior art publication number CN215849114U discloses a plastic particle filtering device, including a filter box. An electric motor is mounted on the top of the filter box, and a rotating rod is rotatably connected inside the filter box. The top of the rotating rod extends through the filter box and is fixedly connected to the output end of the electric motor. Two conical filter layers are rotatably connected inside the filter box. This invention uses a drive motor to move the two conical filter layers, grading plastic particles of different sizes while removing plastic residue. An air pump, in conjunction with an air pipe, assists in amplifying the airflow during filtration, keeping the plastic particles in a constant state of displacement and preventing accumulation and clogging. The graded plastic particles are discharged through two separate discharge pipes, while plastic residue is discharged through a waste discharge pipe. This design ensures the device is less prone to accumulation and clogging during plastic particle screening, resulting in high filtration efficiency and increased overall device efficiency.

[0004] In summary, the filter screens in existing filtration devices are generally fixed, which results in poor efficiency when filtering plastic particles.

[0005] In view of the above-mentioned shortcomings, the designer actively researched and innovated in order to create a multi-layer filtration device for plastic granules, making it more industrially valuable. Utility Model Content

[0006] To solve the above-mentioned technical problems, the purpose of this utility model is to provide a multi-layer filtration device for plastic granules.

[0007] To achieve the above objectives, the present invention adopts the following technical solution:

[0008] A multi-layer filtration device for plastic granules includes an upward-opening cylinder and a sealing cap for sealing the opening of the cylinder. The sealing cap has several inlets that communicate with the inner cavity of the cylinder. A feed pipe is connected to the inner cavity of the cylinder through the inlets. Several filter screens are evenly arranged from top to bottom inside the inner cavity of the cylinder. A conical discharge cavity is provided at the bottom of the cylinder. The conical discharge cavity is connected to a vacuum bottle below through a discharge pipe. A vacuuming device is provided on the right side of the vacuum bottle, and a pump is provided on the bottom left side of the vacuum bottle.

[0009] The filter screen body has slots on both sides of the inner cavity of the cylinder along the X-axis. The filter screen body is inserted into the slots on both sides of the X-axis. A push cylinder is set at the top center of the sealing cover. The drive end of the push cylinder is connected to the push connecting rod located in the inner cavity of the cylinder below. A through hole is set at the middle of the filter screen body. The push connecting rod can pass through the through hole and connect to the card plate located below the filter screen body.

[0010] As a further improvement of this utility model, slots are provided on both sides of the filter screen body along the X-axis direction, and through holes are opened on the outer cylinder of the slots. The plug rod passes through the through holes and is inserted into the slot.

[0011] As a further improvement of this utility model, the top and bottom of the filter screen body located in the slot are connected to the slot by spring posts.

[0012] As a further improvement of this utility model, positioning posts are provided on both sides of the card plate along the X-axis direction, and positioning grooves that cooperate with the positioning posts are provided on the filter screen body directly above the positioning posts.

[0013] As a further improvement of this utility model, a bearing is also provided between the push connecting rod and the through hole, and the bearing is a thrust bearing.

[0014] As a further improvement of this utility model, a sealing gasket is also provided between the bearing and the through hole.

[0015] As a further improvement of this utility model, an inclined guide plate is provided on the inner wall of the inner cavity of the cylinder directly below the feed pipe, and the guide plate is inclined towards the middle of the inner cavity of the cylinder.

[0016] As a further improvement of this utility model, valves are provided on the pipes between the vacuum bottle and the vacuum device, as well as on the pipes between the vacuum bottle and the pump body.

[0017] By means of the above solution, this utility model has at least the following advantages:

[0018] The filter screen of this invention can be vibrated by a cylinder, thereby increasing the filtration speed and improving production efficiency. This invention can simultaneously vibrate multiple filter screens, further enhancing overall production efficiency.

[0019] The above description is only an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, the preferred embodiments of this utility model are described in detail below with reference to the accompanying drawings. Attached Figure Description

[0020] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the structure of a multi-layer filter device for plastic granules according to this utility model;

[0022] Figure 2 yes Figure 1 A magnified schematic diagram of the local structure at point A;

[0023] Figure 3 yes Figure 1 A magnified schematic diagram of the structure at point B in the middle.

[0024] The meanings of the labels in the figures are as follows.

[0025] 1. Cylinder body 2. Sealing cap

[0026] 3 Feed pipe 4 Push cylinder

[0027] 5. Push connecting rod 6. Guide plate

[0028] 7. Filter screen body; 8. Conical material discharge chamber

[0029] 9. Discharge pipe 10. Vacuum bottle

[0030] 11 Vacuum pumping device 12 Pump body

[0031] 13 Valve 14 Through Hole

[0032] 15 Connecting rod 16 Slot

[0033] 17 Spring Posts 18 Slots

[0034] 19 Perforation 20 Positioning groove

[0035] 21. Card plate; 22. Positioning post Detailed Implementation

[0036] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit its scope.

[0037] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0038] Example

[0039] like Figures 1-3 As shown,

[0040] First embodiment of this utility model:

[0041] A multi-layer filtration device for plastic granules includes an upward-opening cylinder 1 and a sealing cap 2 for sealing the opening of the cylinder 1. The sealing cap 2 has several inlets communicating with the inner cavity of the cylinder. A feed pipe 3 connects to the inner cavity of the cylinder through the inlets. Inclined guide plates 6 are provided on the inner wall of the inner cavity directly below the feed pipe 3, tilted towards the center of the inner cavity. Several filter screens 7 are evenly arranged from top to bottom inside the inner cavity of the cylinder. A conical discharge chamber 8 is provided at the bottom of the cylinder 1, connected to a vacuum bottle 10 below via a discharge pipe 9. A vacuum device 11 is provided on the right side of the vacuum bottle 10, and a pump body 12 is provided on the bottom left side of the vacuum bottle 10. Vacuum valves 13 are provided on the pipes between the vacuum bottle 10 and the vacuum device 11, and on the pipes between the vacuum bottle 10 and the pump body 12.

[0042] The second embodiment of this utility model: (based on the first embodiment)

[0043] The filter screen body 7 has slots 16 on both sides of its inner cavity along the X-axis. The filter screen body 7 is inserted into these slots 16 on both sides of its inner cavity along the X-axis. Slots 18 are also provided on both sides of the filter screen body 7 along the X-axis. Through holes 14 are provided on the outer side of the cylinder 1 of the slots 18. A connecting rod 15 passes through the through holes 14 and is inserted into the slot 18. The top and bottom of the filter screen body 7 within the slots 16 are connected to the slots 16 via spring posts 17.

[0044] A push cylinder 4 is located at the top center of the sealing cover 2. The drive end of the push cylinder 4 is connected to a push connecting rod 5 located inside the inner cavity of the cylinder below. A through hole 19 is located at the center of the filter screen body 7. The push connecting rod 5 can pass through the through hole 19 and connect to the clamping plate 21 located below the filter screen body 7. Positioning posts 22 are provided on both sides of the clamping plate 21 along the X-axis. A positioning groove 20 that mates with the positioning post 22 is provided on the filter screen body 7 directly above the positioning post 22. A bearing, which is a thrust bearing, is also provided between the push connecting rod 5 and the through hole 19. A sealing gasket is also provided between the bearing and the through hole 19.

[0045] Brief description of the working process of this utility model:

[0046] This utility model discloses a multi-layer filtration device for plastic granules. The raw material enters the inner cavity of the cylinder through the feed pipe 3 and is guided by the guide plate 6. Then, the raw material passes through several filter screens 7 from top to bottom. The filter screens in the filter screens 7 filter the raw material. The cylinder 4 drives the connecting rod 5 to drive the clamping plate 21 to move up and down. During the upward movement, the filter screens 7 vibrate. Multiple filter screens 7 can be vibrated at the same time to improve the filtration efficiency and effect of the raw material. The plug-in connection between the filter screens 7 and the cylinder 1 has a certain movable gap in the Z-axis direction, and the upper and lower spring columns can play a certain buffering role. After multi-stage filtration, the raw material enters the vacuum bottle 10 below for further processing.

[0047] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships 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. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0048] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0049] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A multi-layer filtering device for plastic particles, comprising a cylinder (1) with an upward opening and a sealing cover (2) for sealing the opening of the cylinder (1), a plurality of feeding ports are formed on the sealing cover (2) and connected with the inner cavity of the cylinder, a feeding pipeline (3) is connected with the inner cavity of the cylinder through the feeding ports, a plurality of filtering screen bodies (7) are uniformly arranged in the inner cavity of the cylinder from top to bottom, a conical discharging cavity (8) is arranged at the bottom of the cylinder (1), the conical discharging cavity (8) is connected with a vacuum bottle (10) below through a discharging pipeline (9), a vacuum device (11) is arranged at the right side of the vacuum bottle (10), and a pump body (12) is arranged at the bottom left side of the vacuum bottle (10); characterized in that: the inner cavity of the cylinder along the two sides of the X-axis direction is provided with a clamping groove (16), the filtering screen body (7) is inserted into the clamping groove (16) along the two sides of the X-axis direction, a push cylinder (4) is arranged at the top middle position of the sealing cover (2), the drive end of the bottom of the push cylinder (4) is connected with a push connecting rod (5) located in the inner cavity of the cylinder below, a perforation (19) is arranged at the middle position of the filtering screen body (7), and the push connecting rod (5) can pass through the perforation (19) and be connected with a clamping plate (21) below the filtering screen body (7). The filtering screen body (7) is provided with an insertion slot (18) along the two sides of the X-axis direction, a through hole (14) is formed on the cylinder (1) outside the insertion slot (18), and an insertion rod (15) passes through the through hole (14) and is inserted into the insertion slot (18).

2. A multi-layer filtering device for plastic particles as claimed in claim 1, characterized in that, The top and bottom of the filtering screen body (7) located in the clamping groove (16) are connected with the clamping groove (16) through spring columns (17).

3. A multi-layer filtering device for plastic particles as claimed in claim 1, wherein, The clamping plate (21) is provided with a positioning column (22) along the two sides of the X-axis direction, and the filtering screen body (7) above the positioning column (22) is provided with a positioning groove (20) matched with the positioning column (22).

4. The multi-layer filtering device for plastic particles of claim 1, wherein, A bearing is further arranged between the push connecting rod (5) and the perforation (19), and the bearing is a thrust bearing.

5. The multi-layer filtration device for plastic particles of claim 1, wherein, A sealing gasket is further arranged between the bearing and the perforation (19).

6. A multi-layer filtering device for plastic particles as claimed in claim 5, wherein, An inclined guide plate (6) is arranged on the inner side wall of the inner cavity of the cylinder below the feeding pipeline (3), and the guide plate (6) is arranged inclined towards the middle side of the inner cavity of the cylinder.

7. A multi-layer filtering device for plastic particles as claimed in claim 1, wherein, Valves (13) are arranged on the pipelines between the vacuum bottle (10) and the vacuum device (11) and between the vacuum bottle (10) and the pump body (12).

8. The multi-layer filtration device for plastic particles of claim 1, wherein, ​

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