Sieving device for silicon PU production

Abstract

The utility model discloses a sieving device for silicon PU production, and relates to the technical field of mechanical design and manufacturing. Comprising a device body, the top of the device body is fixedly connected with a pretreatment box, one side of the pretreatment box is fixedly provided with a first motor, the output end of the first motor is fixedly connected with a crushing roller, the top of the pretreatment box is fixedly connected with a feeding port, and one side of the device body is fixedly connected with a dust collection box; one side of the dust collecting box is fixedly connected with a dust conveying pipe, one end of the dust conveying pipe is fixedly connected with a dust collecting cover, one side of the dust collecting box is fixedly provided with an exhaust fan, and the exhaust fan generates negative pressure to suck a large amount of dust near the dust collecting cover and generated when the device works into the dust conveying pipe and convey the dust into the dust collecting box. Harmful dust generated in the sieving process of the silicon PU material is well treated, so that the cleanness of a working area is improved, and the influence of the harmful dust on the subsequent quality of the silicon PU material is reduced.

Description

Technical Field

[0001] This utility model relates to the field of mechanical design and manufacturing technology, specifically a sieving device for silicon PU production. Background Technology

[0002] Silicone polyurethane (PU) is a healthy, professional, elastic synthetic sports court surface material system that conforms to ergonomic principles and meets the physical requirements of sports. It features a hard-on-top, elastic-bottom structure and can be directly applied to cement or asphalt bases. It consists of a single-component silicone-modified polyurethane buffer and rebound structure, and a two-component modified acrylic layer for wear resistance. It is commonly used in sports venues such as basketball courts and badminton courts.

[0003] Chinese utility model patent CN222112543U discloses a sieving device for silicon PU production, including a base plate. One side of the base plate is connected to a mounting plate, and the other side of the mounting plate is fixedly connected to a motor. The output end of the motor is connected to a first synchronous pulley, which is connected to a second synchronous pulley via a synchronous belt. The first and second synchronous pulleys are respectively connected to two transmission rods, each with a cam on its outer wall. By configuring the first synchronous pulley, synchronous belt, second synchronous pulley, cams, first screen plate, and second screen plate, the sieving device can drive the first and second screen plates to move back and forth through the reciprocating motion of the cams. This causes the screen surfaces of the first and second screen plates to vibrate, thereby quickly sieving the material. Through multiple sieving processes, thorough sieving can be ensured, thus guaranteeing the quality of material processing.

[0004] However, the aforementioned screening device does not have the function of removing dust generated during the production process. Silicon PU materials generate a large amount of dust during screening. If this dust cannot be cleaned in time, it will not only pollute the production environment and affect product quality, but may also harm the health of workers. Utility Model Content

[0005] This invention provides a sieving device for silicon PU production to solve the problems in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a sieving device for silicon PU production, comprising a device body, a pretreatment box fixedly connected to the top of the device body, a first motor fixedly installed on one side of the pretreatment box, a crushing roller fixedly connected to the output end of the first motor, a feed inlet fixedly connected to the top of the pretreatment box, a dust collection box fixedly connected to one side of the device body, a dust conveying pipe fixedly connected to one side of the dust collection box, a dust collection hood fixedly connected to one end of the dust conveying pipe, an exhaust fan fixedly installed on one side of the dust collection box, an exhaust port provided on one side of the dust collection box, a filter screen plate provided inside the exhaust port, a dust discharge port provided at the bottom of the dust collection box, and a valve provided on the surface of the dust discharge port;

[0007] The device body is equipped with a first screen inside, a second screen is arranged directly below the first screen, a loading frame is arranged directly below the second screen, a fixed platform is fixedly connected to one side of the loading frame, a second motor is fixedly connected to the top of the fixed platform, a first transmission wheel is fixedly connected to the output end of the second motor, a second transmission wheel is arranged directly above the first transmission wheel, and a cam is connected to one side of both the first and second transmission wheels.

[0008] Furthermore, a first feed port is provided on the top of the device body, and a second feed port with the same diameter as the first feed port is provided on the bottom of the pretreatment box.

[0009] Furthermore, a transmission belt is provided on the surface of the first transmission wheel, and the first transmission wheel is connected to the second transmission wheel through the transmission belt.

[0010] Furthermore, a vibration assembly is attached to one side of each of the two cams.

[0011] Furthermore, both the front and rear ends of the first screen and the second screen are connected to support frames.

[0012] Furthermore, guide plates are connected to one side of both the first screen and the second screen.

[0013] Compared with the prior art, this utility model provides a sieving device for silicon PU production, which has the following beneficial effects:

[0014] 1. This sieving device for silicone PU production, by setting up a dust collection box, dust conveying pipe, dust collection hood and exhaust fan, uses the exhaust fan to generate negative pressure to suck a large amount of dust generated near the dust collection hood into the dust conveying pipe and transport it to the dust collection box. This effectively handles the harmful dust generated during the sieving process of silicone PU materials, thereby improving the cleanliness of the working area and reducing the impact of harmful dust on the quality of subsequent silicone PU materials.

[0015] 2. This sieving device for silicon PU production, by setting up a feed inlet, a pretreatment box and a crushing roller, can initially crush some large-volume materials that may exist during silicon PU production, making them smaller and more uniform in size, providing a more suitable particle size for subsequent sieving steps, which is beneficial to improving the stability and efficiency of the sieving process. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the internal structure of the present invention;

[0018] Figure 3 This is a front view of the present invention;

[0019] Figure 4 This is a schematic diagram of the dust collection box of this utility model.

[0020] In the diagram: 1. Device body; 2. First screen; 3. Second screen; 4. Pretreatment box; 5. First motor; 6. Crushing roller; 7. Feed inlet; 8. Dust collection box; 801. Exhaust fan; 802. Exhaust port; 803. Filter plate; 804. Dust discharge port; 805. Valve; 9. Dust conveying pipe; 10. Dust collection hood; 11. Loading frame; 12. Fixed platform; 13. Second motor; 14. First transmission wheel; 15. Transmission belt; 16. Second transmission wheel; 17. Cam; 18. Vibration assembly; 19. Support frame; 20. Guide plate. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figure 1-4This utility model discloses a sieving device for silicon PU production, including a device body 1. A pretreatment box 4 is fixedly connected to the top of the device body 1. A first motor 5 is fixedly installed on one side of the pretreatment box 4. A crushing roller 6 is fixedly connected to the output end of the first motor 5. A feed inlet 7 is fixedly connected to the top of the pretreatment box 4. A dust collection box 8 is fixedly connected to one side of the device body 1. A dust conveying pipe 9 is fixedly connected to one side of the dust collection box 8. A dust collection hood 10 is fixedly connected to one end of the dust conveying pipe 9. An exhaust fan 801 is fixedly installed on one side of the dust collection box 8. An exhaust port 802 is provided on one side of the dust collection box 8. A filter screen 803 is provided inside the exhaust port 802. A dust discharge port 804 is provided at the bottom of the dust collection box 8. A valve 805 is provided on the surface of the dust discharge port 804.

[0023] The device body 1 is equipped with a first screen 2 inside, a second screen 3 is arranged directly below the first screen 2, a loading frame 11 is arranged directly below the second screen 3, a fixed platform 12 is fixedly connected to one side of the loading frame 11, a second motor 13 is fixedly connected to the top of the fixed platform 12, a first transmission wheel 14 is fixedly connected to the output end of the second motor 13, a second transmission wheel 16 is arranged directly above the first transmission wheel 14, and a cam 17 is connected to one side of both the first transmission wheel 14 and the second transmission wheel 16.

[0024] Specifically, the top of the device body 1 is provided with a first feed port, and the bottom of the pretreatment box 4 is provided with a second feed port with the same diameter as the first feed port.

[0025] In this embodiment, by providing material inlets of the same size on the surfaces of the device body 1 and the pretreatment box 4, the silicon PU material fed in from the feed inlet 7 can pass through the pretreatment box 4 and enter the screening device.

[0026] Specifically, the surface of the first transmission wheel 14 is provided with a transmission belt 15, and the first transmission wheel 14 is connected to the second transmission wheel 16 through the transmission belt 15.

[0027] In this embodiment, by providing a transmission belt 15 on the surface of the first transmission wheel 14 and setting the connection between the first transmission wheel 14 and the second transmission wheel 16 to be connected by the transmission belt 15, the first transmission wheel 14 can rotate while driving the transmission belt 15 to rotate, and the second transmission wheel 16 can be driven to rotate by the rotation of the transmission belt 15.

[0028] Specifically, a vibration assembly 18 is attached to one side of each of the two cams 17.

[0029] In this embodiment, by attaching a vibration component 18 to one side of the cam 17, the cam 17 can rotate while driving the vibration component 18 to work, providing a vibration effect for the first screen 2 and the second screen 3. The specific structure and principle of the vibration component 18 have been disclosed in the sieving device for silicon PU production disclosed in Chinese Utility Model Patent CN222112543U, so this application will not repeat them.

[0030] Specifically, support frames 19 are connected to both the front and rear ends of the first screen 2 and the second screen 3.

[0031] In this embodiment, support frames 19 are provided at both the front and rear ends of the first screen 2 and the second screen 3, which provides good stability for the first screen 2 and the second screen 3 when vibrating. The specific structure and principle of the support frame 19 have been disclosed in the sieving device for silicon PU production disclosed in Chinese Utility Model Patent CN222112543U, so this application will not repeat them.

[0032] Specifically, guide plates 20 are connected to one side of both the first screen 2 and the second screen 3.

[0033] In this embodiment, a guide plate 20 is provided on one side of the first screen 2 and the second screen 3, which can provide guidance when the first screen 2 and the second screen 3 vibrate; Chinese utility model patent CN222112543U has disclosed the specific structure and principle of the guide plate 20 in a sieving device for silicon PU production, so this application will not repeat it.

[0034] During operation, the operator first turns on the first motor 5, which drives the crushing roller 6. The silicon PU material to be screened is then poured into the pretreatment box 4 through the feed inlet 7. After preliminary processing by the crushing roller 6, the silicon PU material falls onto the first screen 2. At this time, the operator turns on the second motor 13, which drives the first transmission wheel 14, the transmission belt 15, and the second transmission wheel 16 to rotate. This further drives the cam 17 to rotate, which in turn drives the vibration component 18 to work. The vibration component 18, together with the support frame 19 and the guide plate 20, provides a good horizontal vibration effect for the first screen 2 and the second screen 3, enabling them to screen the material on the screens. At this time, the operator turns on the exhaust fan 801 to remove the large amount of dust generated during the screening process. This harmful dust is collected by the dust collection hood 10 and finally falls into the dust collection box 8 through the dust conveying pipe 9. After the screening is completed, the screened silicon PU material accumulates in the loading frame 11 and is then removed by the operator.

[0035] In summary, this sieving device for silicon PU production, by setting up a dust collection box 8, a dust conveying pipe 9, a dust collection hood 10, and an exhaust fan 801, effectively handles the harmful dust generated during the sieving process of silicon PU materials by the exhaust fan 801 generating negative pressure to draw a large amount of dust generated near the dust collection hood 10 into the dust conveying pipe 9 and transport it to the dust collection box 8. This improves the cleanliness of the working area and reduces the impact of harmful dust on the quality of subsequent silicon PU materials. Furthermore, by setting up a feed inlet 7, a pretreatment box 4, and a crushing roller 6, this sieving device can initially crush some large particles that may exist during silicon PU production, making them smaller and more uniform in size. This provides a more suitable particle size for subsequent sieving steps, which helps improve the stability and efficiency of the sieving process.

[0036] 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 sieving device for silicon PU production, comprising a device body (1), characterized in that: A pretreatment box (4) is fixedly connected to the top of the device body (1). A first motor (5) is fixedly installed on one side of the pretreatment box (4). A crushing roller (6) is fixedly connected to the output end of the first motor (5). A feed inlet (7) is fixedly connected to the top of the pretreatment box (4). A dust collection box (8) is fixedly connected to one side of the device body (1). A dust conveying pipe (9) is fixedly connected to one side of the dust collection box (8). A dust collection hood (10) is fixedly connected to one end of the dust conveying pipe (9). A blower (801) is fixedly installed on one side of the dust collection box (8). An exhaust port (802) is provided on one side of the dust collection box (8). A filter screen (803) is provided inside the exhaust port (802). A dust discharge port (804) is provided at the bottom of the dust collection box (8). A valve (805) is provided on the surface of the dust discharge port (804). The device body (1) is provided with a first screen (2) inside, and a second screen (3) is provided directly below the first screen (2). A loading frame (11) is provided directly below the second screen (3). A fixed platform (12) is fixedly connected to one side of the loading frame (11). A second motor (13) is fixedly connected to the top of the fixed platform (12). A first transmission wheel (14) is fixedly connected to the output end of the second motor (13). A second transmission wheel (16) is provided directly above the first transmission wheel (14). A cam (17) is connected to one side of both the first transmission wheel (14) and the second transmission wheel (16).

2. The sieving device for silicon PU production according to claim 1, characterized in that: The top of the device body (1) is provided with a first material inlet, and the bottom of the pretreatment box (4) is provided with a second material inlet with the same diameter as the first material inlet.

3. The sieving device for silicon PU production according to claim 1, characterized in that: The surface of the first drive wheel (14) is provided with a drive belt (15), and the first drive wheel (14) is connected to the second drive wheel (16) through the drive belt (15).

4. A sieving device for silicon PU production according to claim 1, characterized in that: Vibration components (18) are attached to one side of the two cams (17).

5. A sieving device for silicon PU production according to claim 1, characterized in that: Both the front and rear ends of the first screen (2) and the second screen (3) are connected to support frames (19).

6. A sieving device for silicon PU production according to claim 1, characterized in that: Guide plates (20) are connected to one side of both the first screen (2) and the second screen (3).

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