A rubber particle screening mechanism
By designing a double-layer screening frame and a cleaning brush roller assembly, the problems of frequent screen replacement and insufficient self-cleaning ability in existing rubber particle screening mechanisms are solved, achieving efficient multi-stage screening and automatic cleaning, thus improving production efficiency and screening quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SUZHOU YIFENG INSULATION MATERIAL TECHNOLOGY CO LTD
- Filing Date
- 2025-08-26
- Publication Date
- 2026-07-21
AI Technical Summary
Existing rubber granule screening mechanisms mostly adopt a single-layer screen design, which requires frequent screen replacement to adapt to screening different particle sizes. They also lack self-cleaning capabilities, resulting in low production efficiency and reduced screening efficiency.
It adopts a double-layer screening frame structure, combined with a drive motor, transmission wheel and transmission belt to drive the screening frame to vibrate and screen, and is equipped with a cleaning brush roller assembly to achieve multi-stage screening and automatic cleaning, avoiding screen hole clogging.
This technology enables efficient multi-stage screening of rubber granules, improving screening quality and production efficiency, preventing screen clogging, and enhancing the smoothness of the screening mechanism.
Smart Images
Figure CN224527683U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of rubber particle screening technology, and in particular to a rubber particle screening mechanism. Background Technology
[0002] In industries such as rubber product manufacturing and waste rubber recycling, rubber granule screening is a crucial process. Through screening, rubber granules can be classified according to their particle size to meet the specific particle size requirements of different production stages or products.
[0003] Many existing rubber granule screening mechanisms use a single-layer screen design, which has only a single size of mesh. When it is necessary to screen rubber granules of different particle sizes, the entire screen often needs to be replaced, which is cumbersome, time-consuming, and labor-intensive, seriously affecting production efficiency. Moreover, the screens in existing screening mechanisms lack effective self-cleaning capabilities. Agglomerates formed by the adhesion of rubber granules and particles adsorbed on the screen due to electrostatic attraction will gradually clog the mesh, leading to a decrease in screening efficiency. Utility Model Content
[0004] To address the problems mentioned in the background art, this application provides a rubber particle screening mechanism.
[0005] The rubber particle screening mechanism provided in this application adopts the following technical solution:
[0006] A rubber granule screening mechanism includes a screening box. Inside the screening box, a first screening frame and a second screening frame are arranged from top to bottom. A screening mechanism that drives the first and second screening frames to vibrate up and down for screening is installed on the outer wall of the screening box. A collection box is provided at the bottom of the screening box. A first discharge port and a second discharge port are opened on one side wall of the screening box. A first guide hopper and a second guide hopper are provided outside the first and second discharge ports. A feed hopper is also provided at the top of the screening box.
[0007] Preferably, the screening mechanism includes a drive motor fixedly mounted on a mounting base on the outer wall of the screening box. One end of the drive motor is connected to one end of one of two shafts that protrude from the shaft hole in the side wall of the screening box, and the other end of the shaft is connected to a bearing seat on the back of the screening box.
[0008] Preferably, a first transmission wheel and a second transmission wheel are installed at one end of the two shafts, and a transmission belt is fitted between the first transmission wheel and the second transmission wheel. Symmetrical cams are also provided on the shafts, and one end of the cams is in contact with the bottom of the first screening frame and the second screening frame.
[0009] Preferably, symmetrical spring rods are connected to the bottom of both ends of the first screening frame and the second screening frame, and the other end of the spring rods is connected to the top of the fixing plate provided on the inner wall of both sides of the screening box. One end of the first screening frame and the second screening frame also extends out through the first discharge port and the second discharge port.
[0010] Preferably, the first screening frame and the second screening frame are further provided with a cleaning component, the cleaning component including a cleaning brush roller disposed at the top of one end of the first screening frame and the second screening frame, and a connecting rod disposed at both ends of the cleaning brush roller.
[0011] Preferably, pulleys are installed at both rotatable ends of the connecting rod, and the pulleys are slidably installed in sliding grooves opened on both sides of the first screening frame and the second screening frame.
[0012] Preferably, one end of the connecting rod at one end of the cleaning brush roller passes through the movable groove opened on the back of the screening box, and one end of the connecting rod is also connected to a push handle.
[0013] In summary, this application includes the following beneficial technical effects:
[0014] 1. This utility model is equipped with a screening mechanism. Through the operation of the drive motor, the first transmission wheel, the second transmission wheel and the transmission belt drive the shaft to drive the cam to vibrate the first screening frame and the second screening frame. At the same time, under the action of the spring rod, the first screening frame and the second screening frame can effectively vibrate and screen the rubber particles, thereby making the screening of rubber particles more thorough and improving the screening quality.
[0015] 2. This utility model is equipped with a cleaning component. After the screening of the first screening frame and the second screening frame is completed, the connecting rod is driven to slide along the movable groove by pushing the push handle at the top. This allows the cleaning brush roller to slide along the sliding grooves on both sides of the first screening frame and the second screening frame through the pulleys installed on the connecting rods at both ends. This allows the cleaning brush roller to brush the first screening frame and the second screening frame, avoid clogging of the screen holes and improve the smoothness of the screen. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the structure of a rubber particle screening mechanism in an embodiment of this application;
[0017] Figure 2 This is a cross-sectional view of the internal structure of the screening box in an embodiment of this application;
[0018] Figure 3 This is a schematic diagram of the structure of the first screening frame and the second screening frame in the embodiments of this application;
[0019] Figure 4 This is an enlarged schematic diagram of the structure at point A in the embodiment of this application;
[0020] Figure 5 This is a schematic diagram of the back structure of the screening box in an embodiment of this application.
[0021] Explanation of reference numerals in the attached drawings: 1. Screening box; 2. First screening frame; 3. Second screening frame; 4. Collection box; 5. First guide hopper; 6. Second guide hopper; 7. Drive motor; 8. Shaft; 9. First transmission wheel; 10. Second transmission wheel; 11. Transmission belt; 12. Cam; 13. Spring rod; 14. Fixed plate; 15. Cleaning brush roller; 16. Connecting rod; 17. Pulley; 18. Sliding groove; 19. Movable groove; 20. Push handle. Detailed Implementation
[0022] The following is in conjunction with the appendix Figure 1 —5 provides further detailed description of this application.
[0023] This application discloses a rubber particle screening mechanism, including a screening box 1. Inside the screening box 1, a first screening frame 2 and a second screening frame 3 are arranged from top to bottom. A screening mechanism that drives the first screening frame 2 and the second screening frame 3 to vibrate up and down is installed on the outer wall of the screening box 1. A collection box 4 is provided at the bottom of the screening box 1. A first discharge port and a second discharge port are opened on one side wall of the screening box 1. A first guide hopper 5 and a second guide hopper 6 are provided outside the first discharge port and the second discharge port. A feed hopper is also provided at the top of the screening box 1.
[0024] refer to Figure 1 , Figure 2 and Figure 3The screening mechanism includes a drive motor 7 fixedly mounted on a mounting base on the outer wall of the screening box 1. One end of the drive motor 7 is connected to one end of one of two shafts 8 passing through the shaft hole on the side wall of the screening box 1. The other end of the shaft 8 is connected to a bearing seat on the back of the screening box 1. A first transmission wheel 9 and a second transmission wheel 10 are mounted on one end of the two shafts 8. A transmission belt 11 is fitted between the first transmission wheel 9 and the second transmission wheel 10. Symmetrical cams 12 are also provided on the shafts 8. One end of the cam 12 is in contact with the bottom of the first screening frame 2 and the second screening frame 3. Symmetrical spring rods 13 are connected to the bottom ends of the first screening frame 2 and the second screening frame 3. The other end of the spring rods 13 is connected to the inner walls on both sides of the screening box 1. The top of the fixed plate 14 is connected to the first screening frame 2 and the second screening frame 3. One end of the first discharge port and the second discharge port are also extended through the first discharge port and the second discharge port. More specifically, the drive motor 7 drives one of the shafts 8 to rotate. Under the action of the first transmission wheel 9, the second transmission wheel 10 and the transmission belt 11, the other shaft 8 is driven to rotate. This allows the two shafts 8 to rotate simultaneously, driving the cam 12 to lift the bottom of both ends of the first screening frame 2 and the second screening frame 3. At the same time, under the action of the spring rod 13 connected to the bottom of both ends, the first screening frame 2 first screens the rubber particles. After screening, the smaller rubber particles slide into the second screening frame 3 for secondary screening, thereby making the screening of rubber particles more thorough and improving the screening quality.
[0025] refer to Figure 3 , Figure 4 and Figure 5 The first screening frame 2 and the second screening frame 3 are also equipped with cleaning components. The cleaning components include a cleaning brush roller 15 located at the top of one end of the first screening frame 2 and the second screening frame 3. Connecting rods 16 are respectively provided at both ends of the cleaning brush roller 15. Pulleys 17 are rotatably mounted on both ends of the connecting rods 16. The pulleys 17 are slidably installed in sliding grooves 18 opened on both sides of the first screening frame 2 and the second screening frame 3. One end of the connecting rod 16 at one end of the cleaning brush roller 15 passes through a movable groove 19 opened on the back of the screening box 1, and one end of the connecting rod 16 is also connected to a push handle 20. More specifically, when the first screening frame 2 and the second screening frame 3 are connected... After the second screening frame 3 finishes screening, the top push handle 20 drives the connecting rod 16 to slide along the movable groove 19 on the back of the screening box 1. This causes the cleaning brush roller 15 connected to one end of the connecting rod 16 to slide along the sliding grooves 18 on both sides of the first screening frame 2 and the second screening frame 3 via the pulleys 17 installed on the connecting rods 16 at both ends. This allows the cleaning brush roller 15 to brush the first screening frame 2, preventing it from clogging and improving its smoothness. Similarly, by pushing the bottom push handle 20, the cleaning brush roller 15 can brush the second screening frame 3, thereby preventing it from clogging and improving its smoothness.
[0026] The implementation principle of the rubber granule screening mechanism in this application embodiment is as follows: During use, rubber granules are conveyed into the screening box 1 through the feed hopper. Simultaneously, the drive motor 7 operates. Under the action of the first transmission wheel 9, the second transmission wheel 10, and the transmission belt 11, the two shafts 8 rotate simultaneously, driving the cam 12 to vibrate the bottom ends of the first screening frame 2 and the second screening frame 3. Simultaneously, under the action of the spring rods 13 connected to the bottom ends, the first screening frame 2 can effectively perform initial screening of the rubber granules. After screening, larger granules slide through the first discharge port into the first guide hopper 5 for collection, while smaller granules slide into the second screening frame 3 for further processing. A second screening process is performed. After screening, larger particles slide through the second discharge port into the second guide hopper 6 for collection, while smaller particles slide into the collection box 4. This process ensures more thorough screening of the rubber particles and improves the screening quality. After screening by the first screening frame 2 and the second screening frame 3, the connecting rod 16 is slid along the movable groove 19 by pushing the top push handle 20. This allows the cleaning brush roller 15 to slide along the sliding grooves 18 on both sides of the first screening frame 2 and the second screening frame 3 via the pulleys 17 installed on the connecting rods 16 at both ends. This allows the cleaning brush roller 15 to brush the first screening frame 2 and the second screening frame 3, preventing clogging of the screen holes and improving the flowability.
[0027] 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 rubber granule screening mechanism, comprising a screening box (1), characterized in that: The screening box (1) is provided with a first screening frame (2) and a second screening frame (3) arranged from top to bottom inside. The outer wall of the screening box (1) is equipped with a screening mechanism that drives the first screening frame (2) and the second screening frame (3) to vibrate up and down for screening. A collection box (4) is provided at the bottom of the screening box (1). A first discharge port and a second discharge port are provided on one side wall of the screening box (1). A first guide hopper (5) and a second guide hopper (6) are provided on the outer side of the first discharge port and the second discharge port. A feed hopper is also provided on the top of the screening box (1).
2. The rubber particle screening mechanism according to claim 1, characterized in that: The screening mechanism includes a drive motor (7) fixedly installed on a mounting base on the outer wall of the screening box (1). One end of the drive motor (7) is connected to one end of one of two shafts (8) that pass through the shaft hole on the side wall of the screening box (1). The other end of the shaft (8) is connected to a bearing seat on the back of the screening box (1).
3. The rubber particle screening mechanism according to claim 2, characterized in that: A first transmission wheel (9) and a second transmission wheel (10) are installed at one end of the two shafts (8). A transmission belt (11) is fitted between the first transmission wheel (9) and the second transmission wheel (10). Symmetrical cams (12) are also provided on the shafts (8). One end of the cam (12) is in contact with the bottom of the first screening frame (2) and the second screening frame (3).
4. The rubber particle screening mechanism according to claim 3, characterized in that: The bottom ends of the first screening frame (2) and the second screening frame (3) are respectively connected to symmetrical spring rods (13). The other end of the spring rods (13) is connected to the top of the fixing plate (14) provided on both sides of the inner wall of the screening box (1). One end of the first screening frame (2) and the second screening frame (3) also extends out through the first discharge port and the second discharge port.
5. The rubber particle screening mechanism according to claim 4, characterized in that: The first screening frame (2) and the second screening frame (3) are also provided with cleaning components. The cleaning components include cleaning brush rollers (15) disposed at the top of one end of the first screening frame (2) and the second screening frame (3). Connecting rods (16) are respectively disposed at both ends of the cleaning brush rollers (15).
6. The rubber particle screening mechanism according to claim 5, characterized in that: The connecting rod (16) has pulleys (17) mounted at both rotating ends. The pulleys (17) are slidably installed in the sliding grooves (18) opened on both sides of the first screening frame (2) and the second screening frame (3).
7. A rubber particle screening mechanism according to claim 6, characterized in that: One end of the connecting rod (16) provided at one end of the cleaning brush roller (15) passes through the movable groove (19) opened on the back of the screening box (1), and one end of the connecting rod (16) is also connected to a push handle (20).