A vibration screening mechanism for modified polypropylene materials

Abstract

This utility model relates to the field of screening device technology, specifically a vibration screening mechanism for modified polypropylene materials, including: a mounting base and a screen cylinder; the mounting base is vibratoryly mounted on a base, and the screen cylinder is rotatably mounted on the mounting base; a material inlet communicating with the screen cylinder is provided on the side wall of the mounting base, and a hopper assembly is provided on the mounting base; by moving the cross plate to the end of the cross groove so that the hopper can move and extend into the material inlet, after pulling the pull frame to control the limiting block to compress the spring, the positioning rod is rotated and engaged with the positioning groove on the L-shaped boss, and then the pull frame is released. The spring returns to its original position and pushes the limiting block to move and engage with the inner side wall of the L-shaped boss, thereby fixing the position of the positioning rod and further fixing the position of the cross plate, which facilitates the continuous pouring of modified polypropylene materials into the screen cylinder by means of the hopper. The operation is simple and improves the feeding efficiency. After completion, the cross plate and the hopper are moved to the other side of the cross groove and fixed to a fixed position to avoid the hopper affecting the vibration screening of the mounting base and the screen cylinder.

Description

Technical Field

[0001] This utility model relates to the field of screening device technology, specifically a vibration screening mechanism for modified polypropylene materials. Background Technology

[0002] Chinese patent document CN220280184U discloses a vibration screening mechanism for modified polypropylene materials, comprising two frames arranged in parallel and symmetrically, with a freely sliding track between the two frames. A first mounting seat and a second mounting seat capable of reciprocating up and down are respectively positioned above the two frames. The advantages of this invention are: the first and second mounting seats capable of reciprocating up and down are respectively positioned on both sides of the top surface of the frames; each mounting seat has a spring and a vibration motor underneath, causing the mounting seat to vibrate up and down; simultaneously, a second screen cylinder and a first screen cylinder, driven by a motor, are positioned between the two mounting seats, with the first screen cylinder located inside the second screen cylinder. Both screen cylinders have multiple through holes on their exteriors. By rotating the two screen cylinders, the gap between the two sets of through holes can be adjusted to facilitate the screening of materials of different sizes, meeting the needs of use.

[0003] However, in the above solution, a vibratory mounting base is installed on the frame base using springs and a vibrating motor. The mounting base is driven by a motor to drive the screen cylinder to effectively vibrate and screen the modified polypropylene material. During operation, personnel need to use shovels and other auxiliary tools to add small amounts of the modified polypropylene material into the opening of the screen cylinder one by one. The operation is cumbersome and inconvenient, affecting the feeding efficiency of the modified polypropylene material. Improvement and optimization are needed.

[0004] Therefore, this utility model proposes a vibration screening mechanism for modified polypropylene materials to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide a vibration screening mechanism for modified polypropylene materials to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a vibration screening mechanism for modified polypropylene materials, comprising: a mounting base and a screen cylinder; the mounting base is vibratoryly mounted on a base, and rotating wheels are equidistantly arranged in a ring on both sides of the inner wall of the mounting base, the rotating wheels engaging with the annular grooves on the screen cylinder, and the screen cylinder being rotatably mounted on the mounting base; a material inlet communicating with the screen cylinder is provided on the side wall of the mounting base, and a hopper assembly is provided on the mounting base.

[0007] Preferably, the hopper assembly includes a cross groove, a hopper, an L-shaped boss, a positioning rotating rod, and a pull frame. The cross groove is formed on the base, and a cross plate is movably engaged within the cross groove. The end of the cross plate is connected to the hopper.

[0008] Preferably, the hopper is inclined, with the bottom opening of the hopper extending into the feed inlet, and two L-shaped bosses are connected to the base, with the two L-shaped bosses located at both ends of the cross groove.

[0009] Preferably, a positioning groove is provided on the side wall of the L-shaped boss, and a straight groove is provided on the side wall of the cross plate. A positioning rod is rotatably installed in the straight groove, and the positioning rod is engaged with the positioning groove.

[0010] Preferably, the positioning rotating rod has a square groove, and a limit block is movably engaged in the square groove. A guide post is connected to the side end of the limit block and passes through the end of the positioning rotating rod. A spring is sleeved on the guide post. The spring is in a compressed state, and both ends of the spring are engaged with the side wall of the square groove and the limit block, respectively.

[0011] Preferably, a pull frame is connected to the end of the guide post, the pull frame is engaged with the inner wall of the L-shaped boss, a first magnetic block is symmetrically fixedly embedded on the end wall of the pull frame, and a second magnetic block is symmetrically fixedly embedded on the inner wall of the L-shaped boss, the first magnetic block and the second magnetic block attract each other.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] By moving the cross plate to the end of the cross groove, the hopper can be moved into the feed inlet. After pulling the pull frame to control the limit block and compress the spring, the positioning rod is rotated and engaged with the positioning groove on the L-shaped boss. After releasing the pull frame, the spring returns to its original position and pushes the limit block to move the auxiliary pull frame and engage with the inner wall of the L-shaped boss. This fixes the position of the positioning rod and further fixes the position of the cross plate, making it easier to continuously pour modified polypropylene material into the screen cylinder using the hopper. The operation is simple and improves the feeding efficiency. After completion, the cross plate and hopper are moved to the other side of the cross groove and fixed to prevent the hopper from affecting the installation base and the screen cylinder vibration screening. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 This utility model Figure 1 Enlarged view of the area;

[0016] Figure 3 This is a schematic diagram of the cross-shaped plate structure connection of this utility model;

[0017] Figure 4 This is a half-sectional view of the positioning rotating rod structure connection of this utility model.

[0018] In the diagram: 1. Base; 2. Mounting seat; 3. Rotary wheel; 4. Screen cylinder; 5. Material inlet; 6. Cross slide groove; 7. Cross plate; 8. Hopper; 9. L-shaped boss; 10. Positioning groove; 11. Straight groove; 12. Positioning rotating rod; 13. Square groove; 14. Limiting block; 15. Guide column; 16. Spring; 17. Pull frame; 18. First magnetic block; 19. Second magnetic block. Detailed Implementation

[0019] The technical solutions in the embodiments of this utility model will be clearly and completely described below. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0020] Please see Figures 1-4 This utility model provides a technical solution: a vibration screening mechanism for modified polypropylene materials, comprising: a mounting base 2 and a screen cylinder 4; the mounting base 2 is vibratoryly mounted on a base 1, and rotating wheels 3 are equidistantly arranged in annular arrangement on the inner walls of both sides of the mounting base 2, the rotating wheels 3 are engaged with the annular grooves on the screen cylinder 4, and the screen cylinder 4 is rotatably mounted on the mounting base 2; a material inlet 5 communicating with the screen cylinder 4 is provided on the side wall of the mounting base 2, and a hopper assembly is provided on the mounting base 2.

[0021] Mounting base 2 is movably connected to the support column on base 1. With the support spring on the support column and the output end of the vibration motor on base 1, the mounting base 2 can be vibrated and set on base 1. Rotating wheels 3 are equidistantly arranged in a ring on both sides of the inner wall of mounting base 2. The circumference of the rotating wheels 3 is attached to the inner wall of the annular groove on screen cylinder 4 to achieve stable rotation of screen cylinder 4. A drive motor is set on the side wall of mounting base 2. The output end of the drive motor passes through the side wall of mounting base 2 and is connected to screen cylinder 4 to drive screen cylinder 4 to rotate. A discharge port is set on the circumference of screen cylinder 4. A corresponding cover is set at the discharge port for removing the material in screen cylinder 4.

[0022] The cross groove 6 in the hopper assembly is formed on the base 1. A cross plate 7 is movably engaged in the cross groove 6, and a hopper 8 is connected to the end of the cross plate 7. The hopper 8 is inclined, and the bottom opening of the hopper 8 extends into the feed inlet 5. Two L-shaped protrusions 9 are connected to the base 1, and the two L-shaped protrusions 9 are located at both ends of the cross groove 6.

[0023] The hopper 8 can be moved into the feed inlet 5 by moving the cross plate 7 within the cross groove 6. The hopper 8 is tilted to facilitate the pouring of modified polypropylene material into the screen cylinder 4. It can also be used with a conveyor belt. When not pouring material, the hopper 8 can be moved to the outside of the feed inlet 5 without affecting the operation of the screen cylinder 4.

[0024] The L-shaped boss 9 has a positioning groove 10 on its side wall, and the cross plate 7 has a straight groove 11 on its side wall. A positioning rod 12 is rotatably installed in the straight groove 11 and is engaged with the positioning groove 10.

[0025] When the cross plate 7 moves to the end of the cross slide 6, the rotating positioning rod 12 engages with the positioning groove 10 on the L-shaped boss 9 to fix the position of the cross plate 7.

[0026] The positioning rotating rod 12 has a square groove 13 inside, and a limit block 14 is movably engaged in the square groove 13. A guide post 15 is connected to the side end of the limit block 14, which passes through the end of the positioning rotating rod 12. A spring 16 is sleeved on the guide post 15. The spring 16 is in a compressed state, and its two ends are engaged with the side wall of the square groove 13 and the limit block 14, respectively.

[0027] The compressed spring 16 provides a pushing force to the limiting block 14 to move into the square groove 13. The limiting block 14 is engaged in the square groove 13 to prevent the guide post 15 from rotating.

[0028] A pull frame 17 is connected to the end of the guide post 15. The pull frame 17 is engaged with the inner wall of the L-shaped boss 9. A first magnetic block 18 is symmetrically fixedly embedded on the end wall of the pull frame 17. A second magnetic block 19 is symmetrically fixedly embedded on the inner wall of the L-shaped boss 9. The first magnetic block 18 and the second magnetic block 19 attract each other.

[0029] When the positioning rod 12 engages with the positioning groove 10 on the L-shaped boss 9, the pull frame 17 engages with the inner wall of the L-shaped boss 9, and together with the first magnetic block 18 and the second magnetic block 19, they attract each other to fix the position of the positioning rod 12.

[0030] Working principle: Move the cross plate 7 to the end of the cross groove 6 so that the hopper 8 can move into the feed inlet 5. Pull the pull frame 17 to control the movement of the guide column 15 and the limiting block 14. After the limiting block 14 compresses the spring 16, rotate the positioning rod 12 to engage with the positioning groove 10 on the L-shaped boss 9 and then release the pull frame 17. The spring 16 returns to its original position and pushes the limiting block 14 to move so that the guide column 15 retracts into the square groove 13. At this time, the pull frame 17 engages with the inner wall of the L-shaped boss 9 and, together with the first magnetic block 18 and the second magnetic block 19, attracts each other to fix the position of the positioning rod 12, further fixing the position of the cross plate 7. This makes it easier to continuously pour modified polypropylene material into the screen cylinder 4 with the help of the hopper 8. The operation is simple and thus improves the feeding efficiency. After completion, move the cross plate 7 and the hopper 8 to the other side of the cross groove 6 and fix them in place to prevent the hopper 8 from affecting the vibration screening of the mounting base 2 and the screen cylinder 4.

[0031] 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 modified polypropylene material shaker screen mechanism comprising: Mounting base (2), sieve cylinder (4); the mounting base (2) is vibratingly mounted on the base (1), and rotating wheels (3) are equidistantly arranged in a ring on both sides of the inner wall of the mounting base (2). The rotating wheels (3) are engaged with the ring groove on the sieve cylinder (4), and the sieve cylinder (4) is rotatably mounted on the mounting base (2). The feature is that: the side wall of the mounting base (2) is provided with a material inlet (5) that connects to the screen cylinder (4), and the mounting base (2) is provided with a hopper assembly.

2. A modified polypropylene material vibrating screening mechanism according to claim 1, characterized in that: The hopper assembly includes a cross slide (6), a hopper (8), an L-shaped boss (9), a positioning rotating rod (12), and a pull frame (17). The cross slide (6) is opened on the base (1), and a cross plate (7) is movably engaged in the cross slide (6). The end of the cross plate (7) is connected to the hopper (8).

3. A modified polypropylene material vibrating screening mechanism according to claim 2, characterized in that: The hopper (8) is inclined, and the bottom opening of the hopper (8) extends into the feed inlet (5). Two L-shaped bosses (9) are connected to the base (1), and the two L-shaped bosses (9) are located at both ends of the cross groove (6).

4. A modified polypropylene material vibrating screening mechanism according to claim 3, characterized in that: The L-shaped boss (9) has a positioning groove (10) on its side wall, and the cross plate (7) has a straight groove (11) on its side wall. A positioning rod (12) is rotatably installed in the straight groove (11), and the positioning rod (12) is engaged with the positioning groove (10).

5. A modified polypropylene material vibrating screening mechanism according to claim 4, characterized in that: The positioning rotating rod (12) has a square groove (13) inside, and a limit block (14) is movably engaged in the square groove (13). A guide post (15) is connected to the side end of the limit block (14) and passes through the end of the positioning rotating rod (12). A spring (16) is sleeved on the guide post (15). The spring (16) is in a compressed state, and both ends of the spring (16) are engaged with the side wall of the square groove (13) and the limit block (14) respectively.

6. The modified polypropylene material vibration screening mechanism according to claim 5, characterized in that: The guide post (15) is connected to a pull frame (17) at its end. The pull frame (17) is engaged with the inner wall of the L-shaped boss (9). A first magnetic block (18) is symmetrically fixedly embedded on the end wall of the pull frame (17). A second magnetic block (19) is symmetrically fixedly embedded on the inner wall of the L-shaped boss (9). The first magnetic block (18) and the second magnetic block (19) attract each other.

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