A filter screen for styrene butadiene rubber

Abstract

The utility model discloses a kind of filtering screens for styrene-butadiene rubber, including filter box and detachably installed sieve plate in the top of filter box, equipment frame is fixed on the both sides of filter box, the top of two equipment frames is slidably provided with slide, the drive assembly for sliding of two slide plates is equipped in two equipment frames, the top of two slide plates is fixed with L-shaped connecting plate, the outer wall of one side L-shaped connecting plate is fixed with driving motor, cleaning roller is rotatably arranged between two L-shaped connecting plates, the output shaft of driving motor is through L-shaped connecting plate and is fixedly connected with cleaning roller, the inside of filter box is obliquely fixed with discharge plate, discharge port is formed between the bottom end of discharge plate and filter box, electromagnet plate is installed at discharge port in inclined shape, for adsorbing and guiding flow iron-containing impurities, material collecting box is installed on the inner bottom of filter box, solve the problem that traditional sieve plate is easily blocked by large particle impurities, affect screening continuity and the adsorption capacity of small iron filings particles is insufficient, difficult to realize efficient separation.

Description

Technical Field

[0001] This utility model relates to a filter screen, and more particularly to a filter screen for styrene-butadiene rubber. Background Technology

[0002] Styrene-butadiene rubber (SBR) is a synthetic rubber foam with shock-absorbing, heat-insulating, elastic, waterproof, and airtight properties. Therefore, it is widely used in the manufacture of waterproof materials. In recent years, with continuous cost reductions and strong promotion from numerous professional finished product manufacturers, it has become a new material with ever-expanding application fields.

[0003] However, during the actual production, processing, and subsequent stacking of styrene-butadiene rubber (SBR), various impurities can easily be introduced into the rubber granules due to multiple factors such as the production environment, equipment wear, and raw material purity. These impurities mainly include large foreign particles generated during production and fine iron filings shed from equipment wear during operation. The presence of these impurities can severely affect the subsequent processing quality of SBR, especially when used in the production of waterproof membranes. Impurities may lead to uneven membrane structure, reduced waterproof performance, and even cracking and leakage, seriously restricting the market competitiveness and application reliability of SBR products.

[0004] Currently, existing filtration equipment generally suffers from low screening efficiency and incomplete impurity removal in the screening process of styrene-butadiene rubber. On the one hand, traditional sieve plates are easily clogged by large particles of impurities, affecting the continuity of screening; on the other hand, their adsorption capacity for fine iron filings is insufficient, making it difficult to achieve efficient separation. To address these issues, a solution is proposed below. Utility Model Content

[0005] The purpose of this invention is to provide a filter screen for styrene-butadiene rubber to solve the problems mentioned in the background art.

[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution:

[0007] A filter screen for styrene-butadiene rubber includes a filter box and a screen plate detachably mounted on the top of the filter box. Equipment frames are fixed to both side walls of the filter box. Slide plates are slidably mounted on the top of each of the two equipment frames. A drive assembly for pushing the slide plates is provided inside each of the two equipment frames. An L-shaped connecting plate is fixed to the top of each of the two slide plates. A drive motor is fixed to the outer wall of one of the L-shaped connecting plates. A cleaning roller is rotatably mounted between the two L-shaped connecting plates. The output shaft of the drive motor passes through the L-shaped connecting plate and is fixedly connected to the cleaning roller. A discharge plate is inclinedly fixed inside the filter box. A discharge port is formed between the bottom end of the discharge plate and the filter box. An electromagnetic plate is inclinedly mounted at the discharge port for adsorbing and guiding iron-containing impurities. A collection box is installed on the inner bottom of the filter box.

[0008] Preferably, the drive assembly includes a reciprocating lead screw, a connecting shaft, and a servo motor. The reciprocating lead screw is rotatably disposed within one side of the equipment frame. The servo motor is fixed to the side wall of the equipment frame. The output shaft of the servo motor passes through the equipment frame and is fixedly connected to the reciprocating lead screw. The connecting shaft is fixedly installed within the other side of the equipment frame. The two sliding plates are slidably disposed within the two equipment frames respectively. One sliding plate is threadedly engaged with the reciprocating lead screw, and the other sliding plate is slidably disposed on the connecting shaft.

[0009] Preferably, the filter box is equipped with an annular support plate, the sieve plate is installed on the top of the annular support plate, multiple clamping plates are fixed on the top of the annular support plate, and multiple slots corresponding to the clamping plates are opened on the bottom of the sieve plate, and the clamping plates are engaged with the slots.

[0010] Preferably, the sieve plate is divided into a sealing area and a screening area, the screening area corresponding to the unloading plate, and the sealing area corresponding to the unloading port.

[0011] Preferably, a push plate is also fixed at an incline between the two L-shaped connecting plates.

[0012] Preferably, the outer surface of the cleaning roller is provided with wear-resistant nylon bristles of 5-8 mm evenly embedded.

[0013] Preferably, the tilt angle of the electromagnetic plate is 30°-60° with respect to the horizontal plane.

[0014] Preferably, one side of the collection box extends through the side wall of the filter box, making it easy to remove and clean.

[0015] Beneficial effects: This utility model achieves preliminary screening of large particles of impurities and qualified styrene-butadiene rubber particles through a sieve plate. At the same time, the electromagnetic plate installed at an angle at the discharge port can accurately adsorb iron-containing impurities such as fine iron filings mixed in the rubber particles, realizing the simultaneous separation of large particles of impurities and iron-containing impurities, significantly improving the purity of styrene-butadiene rubber, and ensuring the quality stability of subsequent processed products (such as waterproof membranes) from the source. The electromagnetic plate adopts a 30°-60° inclined design, which can guide impurities to slide smoothly while efficiently adsorbing impurities, avoiding accumulation and blockage.

[0016] The drive assembly moves the slide plate and L-shaped connecting plate back and forth, and the cleaning roller driven by the drive motor rotates. The 5-8mm wear-resistant nylon bristles on the outside of the cleaning roller can clean the screen plate surface in all directions, effectively preventing large particles of impurities from clogging the screen holes, ensuring the continuous screening process, and greatly improving screening efficiency. The push plate is designed at the front end of the cleaning roller to prevent materials from being poured onto the screen plate and piling up, which is not conducive to subsequent screening.

[0017] The screen plate is detachable and can be installed by engaging the clips and slots on the ring support plate. This makes it easy to replace screen plates of different specifications or to clean and maintain the screen plates according to usage requirements. The collection box runs through the side wall of the filter box on one side, allowing the collected qualified rubber particles to be directly extracted and cleaned, making the operation simple. Attached Figure Description

[0018] Figure 1 This is a top view of the structure of an embodiment;

[0019] Figure 2 This is a side view diagram illustrating the structure of the filter box, used as an example.

[0020] Figure 3 This is a cross-sectional structural diagram used to illustrate an embodiment of the filter box;

[0021] Figure 4 Examples are provided for demonstration purposes. Figure 3 A magnified structural diagram of A in the middle.

[0022] Reference numerals: 1. Filter box; 2. Screen plate; 3. Equipment frame; 4. Slide plate; 5. Drive assembly; 6. L-shaped connecting plate; 7. Drive motor; 8. Cleaning roller; 9. Discharge plate; 10. Electromagnetic plate; 11. Collection box; 12. Reciprocating screw; 13. Connecting shaft; 14. Servo motor; 15. Annular support plate; 16. Clamping plate; 17. Push plate. Detailed Implementation

[0023] See Figures 1 to 4 As shown, this embodiment provides a filter screen for styrene-butadiene rubber, including a filter box 1, a screen plate 2 detachably installed on the top of the filter box 1, an automatic cleaning mechanism disposed above the screen plate 2, and an impurity separation and collection system disposed inside the filter box 1.

[0024] The filter box 1 has a rectangular structure with equipment frames 3 symmetrically fixed on its two outer walls. Each equipment frame 3 has a sliding groove on its top, and a sliding plate 4 is slidably installed in the sliding groove. The sliding plate 4 slides along the length of the equipment frame 3. A drive component 5 is installed inside the equipment frame 3 to control the reciprocating motion of the sliding plate 4.

[0025] The drive assembly 5 includes a reciprocating lead screw 12, a connecting shaft 13, and a servo motor 14. The reciprocating lead screw 12 is installed in one side of the equipment frame 3. Both ends of the reciprocating lead screw 12 are mounted in the equipment frame 3 through bearings, and are supported by the bearings and can rotate freely. The servo motor 14 is fixed on the outer wall of the equipment frame 3 on the same side. The output shaft of the servo motor 14 passes through the housing wall and is coaxially connected to one end of the reciprocating lead screw 12. The connecting shaft 13 is a smooth shaft structure and is fixed in the equipment frame 3 on the other side. One side of the slide plate 4 is engaged with the reciprocating lead screw 12 through a threaded sleeve, and the other side of the slide plate 4 is slidably engaged with the connecting shaft 13 through a sliding sleeve. When the servo motor 14 is started, the output shaft of the servo motor 14 will drive the reciprocating lead screw 12 to rotate, and the reciprocating lead screw 12 can drive the slide plate 4 engaged with it to move axially.

[0026] An L-shaped connecting plate 6 is fixed to the upper surface of each of the two slide plates 4. A cleaning roller 8 is rotatably mounted between the two L-shaped connecting plates 6 via a bearing. A drive motor 7 is installed on the outer side of one L-shaped connecting plate 6. The output shaft of the drive motor 7 passes through the plate body and is fixedly connected to the shaft end of the cleaning roller 8. The drive motor 7 can drive the cleaning roller 8 to rotate at high speed. The surface of the cleaning roller 8 is uniformly covered with wear-resistant nylon bristles with a height of 5-8mm. These bristles have a certain degree of elasticity and wear resistance. The wear-resistant nylon bristles are in contact with the upper surface of the screen plate 2, which can effectively remove blockages without damaging the screen surface, thereby improving the screening efficiency of the material. When the slide plate 4 moves, it can drive one L-shaped connecting plate 6 to move. The L-shaped connecting plate 6 can drive the cleaning roller 8 to move, and the cleaning roller 8 can drive the other L-shaped connecting plate 6 to move.

[0027] To further optimize material distribution, a pusher plate 17 is installed at an angle between the two L-shaped connecting plates 6 and on the front side of the forward direction of the cleaning roller 8. The pusher plate 17 can initially flatten the input styrene-butadiene rubber material, avoid accumulation, and improve screening uniformity.

[0028] The sieve plate 2 is installed inside the upper part of the filter box 1 through a detachable structure. Specifically, an annular support plate 15 is fixed on the inner wall of the filter box 1, and several clamping plates 16 are erected on the support plate 15. The bottom surface of the sieve plate 2 has corresponding slots, and the sieve plate 2 can be quickly installed and removed by the insertion and cooperation of the clamping plates 16 and the slots.

[0029] Inside the filter box 1, a discharge plate 9 is fixed at an incline. Its high end is close to the lower edge of the screening section of the sieve plate 2, and its low end has a discharge port between it and the side wall of the filter box 1. The sieve plate 2 is divided into a screening section and a sealing section according to its function. The screening section corresponds to the discharge plate 9 below, and the sealing section corresponds to the discharge port position to prevent unscreened materials from falling directly. An inclined electromagnetic plate 10 is installed at the discharge port. The electromagnetic plate is energized and the inclination angle is between 30° and 60°. This design allows qualified rubber particles that pass through the sieve plate to slide down the discharge plate 9. Magnetic impurities such as iron filings mixed in are captured and adsorbed by the electromagnetic plate 10, while non-magnetic particles continue to slide to the bottom of the filter box 1. A collection box 11 is installed at the bottom of the filter box 1. The collection box 11 can better collect the filtered rubber particles. The electromagnetic plate 10 is mainly composed of an iron core, an excitation coil, a shell, and an electrode interface. When the electromagnetic plate 10 is energized, it generates magnetic force. When the electromagnetic plate 10 is de-energized, the magnetic force disappears, and impurities on the electromagnetic plate 10 can be cleaned.

[0030] Specifically, the unloading plate 9 is also an energized electromagnetic plate. When the material contains a lot of iron filings and impurities, the unloading plate 9 and the electromagnetic plate 10 can be energized to improve the cleaning ability.

[0031] The collection box 11 is placed at the bottom of the filter box 1, with one side extending beyond the side wall of the filter box 1 to form a pull-out structure, which makes it convenient for operators to periodically remove and clean the collected pure rubber particles.

Claims

1. A filter screen for styrene-butadiene rubber, comprising a filter box (1) and a screen plate (2) detachably mounted on the top of the filter box (1), characterized in that, Equipment frames (3) are fixed on both sides of the filter box (1). Slide plates (4) are slidably installed on the top of each of the two equipment frames (3). A drive assembly (5) for pushing the slide plates (4) to slide is provided inside each of the two equipment frames (3). An L-shaped connecting plate (6) is fixed on the top of each of the two slide plates (4). A drive motor (7) is fixed on the outer wall of one side of the L-shaped connecting plate (6). A cleaning roller (8) is rotatably installed between the two L-shaped connecting plates (6). The output shaft of the drive motor (7) passes through the L-shaped connecting plate (6) and is fixedly connected to the cleaning roller (8). A discharge plate (9) is fixedly installed at an incline inside the filter box (1). A discharge port is formed between the bottom end of the discharge plate (9) and the filter box (1). An electromagnetic plate (10) is installed at the discharge port at an incline to adsorb and guide iron-containing impurities. A collection box (11) is installed on the bottom of the filter box (1).

2. The filter screen for styrene-butadiene rubber according to claim 1, characterized in that, The drive assembly (5) includes a reciprocating lead screw (12), a connecting shaft (13), and a servo motor (14). The reciprocating lead screw (12) is rotatably disposed in one side of the device frame (3). The servo motor (14) is fixed on the side wall of the device frame (3). The output shaft of the servo motor (14) passes through the device frame (3) and is fixedly connected to the reciprocating lead screw (12). The connecting shaft (13) is fixedly installed in the other side of the device frame (3). The two sliding plates (4) are respectively slidably disposed in the two device frames (3). One side of the sliding plate (4) is threadedly engaged with the reciprocating lead screw (12), and the other side of the sliding plate (4) is slidably disposed on the connecting shaft (13).

3. The filter screen for styrene-butadiene rubber according to claim 1, characterized in that, The filter box (1) is equipped with an annular support plate (15) inside. The sieve plate (2) is installed on the top of the annular support plate (15). Multiple clamping plates (16) are fixed on the top of the annular support plate (15). Multiple slots corresponding to the clamping plates (16) are opened at the bottom of the sieve plate (2). The clamping plates (16) are engaged with the slots.

4. A filter screen for styrene-butadiene rubber according to claim 1, characterized in that, The sieve plate (2) is divided into a sealing area and a screening area. The screening area corresponds to the unloading plate (9), and the sealing area corresponds to the unloading port.

5. A filter screen for styrene-butadiene rubber according to claim 1, characterized in that, A push plate (17) is also fixed at an incline between the two L-shaped connecting plates (6).

6. A filter screen for styrene-butadiene rubber according to claim 1, characterized in that, The cleaning roller (8) is provided with wear-resistant nylon bristles of 5-8 mm evenly embedded on its exterior.

7. A filter screen for styrene-butadiene rubber according to claim 1, characterized in that, The tilt angle of the electromagnetic plate (10) is 30°-60° with the horizontal plane.

8. A filter screen for styrene-butadiene rubber according to claim 1, characterized in that, The material collection box (11) extends through the side wall of the filter box (1) on one side, making it easy to remove and clean.

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