Polypropylene regenerated particle density screening device

Abstract

The utility model belongs to the technical field of particle screening, and discloses a polypropylene regenerated particle density screening device which comprises a bottom plate, a rotating cylinder is arranged above the middle of the bottom plate, a plurality of screening holes are evenly formed in the outer end of the middle of the rotating cylinder, a sealing plate is fixedly connected to one end face of the rotating cylinder, and a side disc is arranged in the center of the side, back to the rotating cylinder, of the sealing plate. A central inner cavity of the side disc is rotationally sleeved with a rotating shaft in a penetrating manner; one end of the rotating shaft is fixedly connected with the central point of the sealing plate; according to the polypropylene regeneration particle screening device, through the arranged bottom plate, main body bearing of the structure on the bottom plate is facilitated, and meanwhile through cooperation of the arranged rotating cylinder, screening holes, a sealing plate, a side disc, a rotating shaft, a motor, a vertical plate, a shaft rod, a jacking strip, an electric push rod, a collecting box and an auxiliary structure, rapid and effective density screening of polypropylene regeneration particles can be achieved; and the problems that meshes are blocked and the screening effect is poor in a screen screening mode can be solved.

Description

Technical Field

[0001] This application relates to the field of particle screening technology, and more specifically, to a polypropylene recycled particle density screening device. Background Technology

[0002] Polypropylene is a semi-crystalline thermoplastic with high impact resistance, strong mechanical properties, and resistance to various organic solvents and acid and alkali corrosion. It is widely used in production and daily life and is one of the most common polymer materials. Polypropylene is cut into recycled polypropylene granules by a granulator. However, during the granulation process, some of the granules in the finished product do not meet the specifications. Therefore, after granulation, the recycled polypropylene granules need to be density screened.

[0003] Currently, density screening of recycled polypropylene granules is usually performed using a sieve filtration method, which easily leads to sieve clogging and poor screening efficiency.

[0004] To address the aforementioned issues, this application provides a polypropylene recycled particle density screening device. Utility Model Content

[0005] The polypropylene recycled particle density screening device provided in this application adopts the following technical solution:

[0006] A polypropylene recycled particle density screening device includes a base plate, a rotating drum positioned above the center of the base plate, and multiple screening holes evenly distributed at the outer end of the rotating drum. A sealing plate is fixedly connected to one end face of the rotating drum. A side plate is positioned at the center of the side of the sealing plate facing away from the rotating drum. A rotating shaft is rotatably sleeved through the central cavity of the side plate. One end of the rotating shaft is fixedly connected to the center point of the sealing plate, and the other end of the rotating shaft is connected to a motor. The motor is fixedly installed on the side face of the side plate facing away from the sealing plate. Vertical plates are distributed on both sides of the side plate. Each of the upright plates is fixedly installed on one side of the top of the base plate, and the upper ends of the two upright plates are rotatably connected to a shaft. The opposite ends of the two shafts are fixedly connected to the outer side wall of the side plate. An auxiliary structure is provided between the sealing plate and the side plate. The bottom end of the rotating cylinder away from the sealing plate is slidably in contact with a top holding strip. An electric push rod is fixedly connected to the center of the bottom of the top holding strip. The non-driving end of the bottom of the electric push rod is fixedly installed on one side of the top of the base plate. A collection box is provided on the top of the base plate. The collection box is located between the electric push rod and the upright plate.

[0007] Through the above technical solution, the sealing plate achieves the closure of one end of the rotating drum and the connection with the outer structure.

[0008] Furthermore, a movable cover is rotatably mounted on one end face of the rotating drum facing away from the sealing plate, and a latch is provided between the side of the movable cover facing away from the rotating connection position of the rotating drum and the outer surface of the rotating drum.

[0009] Through the above technical solution, the latch achieves the positioning function when the movable cover is closed.

[0010] Furthermore, each of the two shafts is fixedly connected to a limiting piece at one of its opposite ends, and the two limiting pieces are located on opposite sides of the upper end of the two upright plates.

[0011] Through the above technical solution, the limiting piece achieves the limiting effect of one end of the shaft.

[0012] Furthermore, the auxiliary structure includes a circular slide rail fixedly installed on the outer periphery of one end face of the side plate. The circular slide rail is located on the outer side of the rotating shaft, and three sliding blocks are uniformly slidably sleeved on the outer circumference of one side of the circular slide rail. All three sliding blocks are fixedly installed on the end face of the sealing plate facing the side plate.

[0013] Through the above technical solution, the auxiliary structure can achieve sliding limiting between the sealing plate and the side plate, while also improving the stability of the lateral state of the rotating drum itself.

[0014] Furthermore, a limiting frame is movably engaged on the rear side of the bottom outer wall of the collection box. The limiting frame has a "U"-shaped frame structure design, and the bottom of the limiting frame is fixedly connected to the top of the base plate.

[0015] Furthermore, an extension block is fixedly connected to the front side of the outer surface of the collection box, and a pin is movably inserted into one side of the extension block. A socket is movably inserted into the bottom end of the pin, and the socket is located on one side of the top of the base plate.

[0016] Through the above technical solution, the limiting frame, extension block, pin, and insertion hole realize the positioning function of the collection box on the top of the base plate.

[0017] In summary, this application includes the following beneficial technical effects:

[0018] The base plate provided in this application facilitates the support of the main structure above it. In conjunction with the provided rotating drum, screening holes, sealing plate, side plate, rotating shaft, motor, vertical plate, shaft rod, top support bar, electric push rod, collection box, and auxiliary structures, it can achieve rapid and effective density screening of polypropylene recycled granules. It can also overcome the problems of mesh clogging and poor screening effect that exist in the traditional screen screening method. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of this application;

[0020] Figure 2 This is a schematic diagram of the first partial structure of this application;

[0021] Figure 3 This is a partial semi-exploded view of this application;

[0022] Figure 4 This is a schematic diagram of the second partial structure of this application.

[0023] Explanation of the labels in the diagram:

[0024] 1. Base plate; 2. Rotary drum; 3. Screening hole; 4. Sealing plate; 5. Side plate; 6. Rotating shaft; 7. Motor; 8. Vertical plate; 9. Shaft; 10. Top support bar; 11. Electric push rod; 12. Collection box; 13. Movable cover; 14. Limiting plate; 15. Circular slide rail; 16. Sliding block; 17. Limiting frame; 18. Extension block; 19. Pin; 20. Insertion hole. Detailed Implementation

[0025] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0026] In the description of this application, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application 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 application. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0027] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0028] Example:

[0029] This application discloses a polypropylene recycled particle density screening device. Please refer to [link to relevant documentation]. Figure 1 , Figure 2 and Figure 3 The system includes a base plate 1, a rotating drum 2 located above the center of the base plate 1, and multiple screening holes 3 evenly distributed at the outer end of the center of the rotating drum 2. A sealing plate 4 is fixedly connected to one end face of the rotating drum 2. A side plate 5 is located at the center of the side of the sealing plate 4 facing away from the rotating drum 2. A rotating shaft 6 is rotatably connected through the center cavity of the side plate 5. One end of the rotating shaft 6 is fixedly connected to the center point of the sealing plate 4, and the other end of the rotating shaft 6 is connected to a motor 7. The motor 7 is fixedly installed on the side face of the side plate 5 facing away from the sealing plate 4. Vertical plates 8 are distributed on both sides of the side plate 5, and both vertical plates 8 are fixedly installed on... On one side of the top of the base plate 1, and at the upper ends of the two upright plates 8, a shaft 9 is rotatably sleeved through it. The opposite ends of the two shafts 9 are fixedly connected to the outer side wall of the side plate 5. An auxiliary structure is provided between the sealing plate 4 and the side plate 5. The bottom end of the rotating cylinder 2 away from the sealing plate 4 is slidably in contact with a top holding strip 10. An electric push rod 11 is fixedly connected to the center of the bottom of the top holding strip 10. The non-driving end of the bottom of the electric push rod 11 is fixedly installed on one side of the top of the base plate 1. A collection box 12 is provided on the top of the base plate 1. The collection box 12 is located between the electric push rod 11 and the upright plate 8.

[0030] A movable cover 13 is rotatably installed on one end face of the rotating drum 2 facing away from the sealing plate 4. A latch is provided between the side of the movable cover 13 facing away from the rotating connection position of the rotating drum 2 and the outer surface of the rotating drum 2. Limiting plates 14 are fixedly connected to the opposite ends of the two shafts 9. The two limiting plates 14 are located on opposite sides of the upper ends of the two vertical plates 8.

[0031] The auxiliary structure includes a circular slide rail 15 fixedly installed on the outer periphery of one end face of the side plate 5. The circular slide rail 15 is located on the outer side of the rotating shaft 6, and three sliding blocks 16 are uniformly slidably sleeved on the outer circumference of one side of the circular slide rail 15. All three sliding blocks 16 are fixedly installed on the end face of the sealing plate 4 facing the side plate 5.

[0032] Please see Figure 1 and Figure 4The bottom outer wall of the collection box 12 is movably engaged with a limiting frame 17. The limiting frame 17 has a "U" shaped frame structure design, and the bottom of the limiting frame 17 is fixedly connected to the top of the base plate 1. An extension block 18 is fixedly connected to the front of the outer surface of the collection box 12. A pin 19 is movably inserted into one side of the extension block 18. The bottom end of the pin 19 is movably inserted into a socket 20, which is located on one side of the top of the base plate 1. With the cooperation of the limiting frame 17, the extension block 18, the pin 19, and the socket 20, the collection box 12 can be positioned on the top of the base plate 1. When it is necessary to clean the particles collected inside, the collection box 12 can be easily extracted. When extracting, simply pull the pin 19 upwards to disengage its bottom end from the socket 20, and then pull the collection box 12 out horizontally.

[0033] The implementation principle of this embodiment is as follows: During use, the electric push rod 11 drives the top holding bar 10 to move upward, causing the side of the rotating drum 2 near the movable cover 13 to tilt upward. During this process, the rotating drum 2 indirectly drives the side plate 5 to swing according to the central axis position of the two shafts 9. Then, while opening the movable cover 13, the polypropylene recycled particles to be screened are put into the interior of the rotating drum 2. After closing the movable cover 13, the electric push rod 11 indirectly resets the rotating drum 2 to a horizontal position, and the motor 7 is started to drive the rotating drum 2 to rotate through the rotating shaft 6. During this process, while the outer surface of one side of the rotating drum 2 contacts and slides with the upper arc section of the top holding bar 10, the density screening of the polypropylene recycled particles is achieved through the multiple screening holes 3 at the outer end of the rotating drum 2. The screened particles fall into the collection box 12 for collection. When the rotating drum 2 is passively rotating, it drives each sliding block 16 on one end face of the sealing plate 4 to perform a limited sliding cooperation on the outer surface of the circular slide rail 15.

[0034] After screening, simply use the electric push rod 11 to drive the top support bar 10 downwards, so that one side of the rotating drum 2 is tilted downwards, and then open the movable cover 13 again to realize the centralized pouring and collection of unscreened particles.

[0035] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A polypropylene recycled particle density screening device, comprising a base plate (1), characterized in that: A rotating drum (2) is provided above the middle of the base plate (1). Multiple screening holes (3) are evenly opened at the outer end of the middle of the rotating drum (2). A sealing plate (4) is fixedly connected to one end face of the rotating drum (2). A side plate (5) is provided at the center of the side of the sealing plate (4) facing away from the rotating drum (2). A rotating shaft (6) is rotatably sleeved through the center cavity of the side plate (5). One end of the rotating shaft (6) is fixedly connected to the center point of the sealing plate (4), and the other end of the rotating shaft (6) is connected to a motor (7). The motor (7) is fixedly installed on the side face of the side plate (5) facing away from the sealing plate (4). Vertical plates (8) are distributed on both sides of the side plate (5). Both vertical plates (8) are fixedly installed on the side plate (5). A shaft (9) is rotatably sleeved through the top of the base plate (1) and the upper ends of the two upright plates (8). The opposite ends of the two shafts (9) are fixedly connected to the outer side wall of the side plate (5). An auxiliary structure is provided between the sealing plate (4) and the side plate (5). The bottom end of the rotating cylinder (2) away from the sealing plate (4) is slidably contacted by a top holding strip (10). An electric push rod (11) is fixedly connected to the center of the bottom of the top holding strip (10). The non-driving end of the bottom of the electric push rod (11) is fixedly installed on one side of the top of the base plate (1). A collection box (12) is provided on the top of the base plate (1). The collection box (12) is located between the electric push rod (11) and the upright plate (8).

2. The polypropylene recycled particle density screening device according to claim 1, characterized in that: A movable cover (13) is rotatably mounted on one end face of the rotating drum (2) facing away from the sealing plate (4), and a latch is provided between the side of the movable cover (13) facing away from the rotating connection position of the rotating drum (2) and the outer surface of the rotating drum (2).

3. The polypropylene recycled particle density screening device according to claim 1, characterized in that: Each of the two shafts (9) is fixedly connected to a limiting piece (14) at one of their opposite ends, and the two limiting pieces (14) are located on opposite sides of the upper ends of the two upright plates (8).

4. The polypropylene recycled particle density screening device according to claim 1, characterized in that: The auxiliary structure includes a circular slide rail (15) fixedly installed on the outer periphery of one end face of the side plate (5). The circular slide rail (15) is located on the outer side of the rotating shaft (6), and three sliding blocks (16) are uniformly slidably sleeved on the outer circumference of one side of the circular slide rail (15). The three sliding blocks (16) are all fixedly installed on the end face of the sealing plate (4) facing the side plate (5).

5. The polypropylene recycled particle density screening device according to claim 1, characterized in that: The bottom outer wall of the collection box (12) is movably engaged with a limiting frame (17). The limiting frame (17) has a "U" shaped frame structure design, and the bottom of the limiting frame (17) is fixedly connected to the top of the base plate (1).

6. The polypropylene recycled particle density screening device according to claim 5, characterized in that: An extension block (18) is fixedly connected to the front side of the outer surface of the collection box (12). A pin (19) is movably inserted into one side of the extension block (18). A socket (20) is movably inserted into the bottom end of the pin (19). The socket (20) is located on one side of the top of the base plate (1).

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