Polyurethane particle screening device

Abstract

The utility model belongs to the technical field of polyurethane processing, and particularly relates to a polyurethane particle screening device which comprises a feeding pipe, a fixed cylinder is fixedly connected between the two sides of the feeding pipe, a feeding port and a discharging port are formed in the top side and the bottom side of the fixed cylinder respectively, flow guide plates are symmetrically installed at the top end of the feeding pipe, a rotating shaft is installed at the output end of a driving motor, and the rotating shaft is connected with the fixed cylinder. A rotating roller is mounted on the outer wall of the rotating shaft, and a storage groove is formed in the rotating roller; polyurethane particles are poured from the upper portion of the feeding pipe and guided by the flow guide plate to fall into the feeding port, meanwhile, the driving motor is started to drive the rotating shaft to rotate, so that the rotating roller rotates in the fixed cylinder, when the storage tank rotates to the position of the feeding port, the particles fall into the storage tank, and the particles fall into the storage tank along with continuous rotation of the rotating roller. The particles fall into the box body from the discharging port, continuous feeding is achieved, it is guaranteed that the particles can evenly and orderly enter a screening area, and the screening efficiency and precision are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of polyurethane processing, in particular to a polyurethane particle screening device. Background Art

[0002] In the manufacturing process of floor mats or foot mats, polyurethane is needed as raw material. Therefore, in the processing of polyurethane, particles with larger particle sizes need to be screened, so a screening device is needed.

[0003] A Chinese patent with announcement number CN206746999U discloses a polyurethane particle screening device, including a support rod, a first shock-absorbing rod is provided on the top of the support rod, a second shock-absorbing rod is provided on the support rod, a sieve plate is provided on the top of the first shock-absorbing rod and the second shock-absorbing rod, an outer frame is provided on the sieve plate, a vibration frame is provided below the sieve plate, a vibration motor is installed on the vibration frame, and a screening baffle rod is formed on the sieve plate; the sieve plate includes a first sieve mesh, a second sieve mesh, and a third sieve mesh; the utility model can screen polyurethane particles according to particle size, thereby improving the screening efficiency and accuracy of polyurethane particles.

[0004] However, the above-mentioned screening device still has some problems. In practical applications, particles are usually added to the feed pipe at one time. Too much feeding at one time will cause the material to accumulate in the feed pipe and the subsequent screening structure, which may easily cause blockage. It cannot be guaranteed that each particle can be fully and evenly screened, thereby reducing the screening accuracy and efficiency of the particles. Therefore, a polyurethane particle screening device is proposed to address the above problems. Utility Model Content

[0005] In order to make up for the deficiencies of the prior art and solve the problems raised in the background technology, the utility model proposes a polyurethane particle screening device.

[0006] The technical solution adopted by the utility model to solve its technical problems is: a polyurethane particle screening device described in the utility model comprises a box body, a feed pipe is connected to the top side of the box body, a fixed cylinder is fixedly connected between the two sides of the feed pipe, a feed port and a discharge port are respectively provided on the top side and the bottom side of the fixed cylinder, and the feed port and the discharge port are symmetrically arranged, guide plates are symmetrically installed on both sides of the top end of the feed pipe, one end of the guide plate extends to the top of the feed port, a driving motor is installed on one side of the feed pipe, a rotating shaft is installed on the output end of the driving motor, a rotating roller is installed on the outer wall of the rotating shaft, and the rotating roller is arranged inside the fixed cylinder, and the radius of the rotating roller is equal to the inner diameter of the fixed cylinder, and eight storage troughs are equidistantly provided inside the rotating roller, so as to realize continuous feeding, ensure that the particles can enter the screening area evenly and orderly, and improve the screening efficiency and accuracy.

[0007] Preferably, two sleeves are fixedly installed on both sides of the box body, a spring is fixed inside the sleeve, a movable rod is fixed at one end of the spring, the top end of the movable rod extends to the outside of the sleeve and is fixedly connected to a sieve plate, which helps the particles move on the sieve plate and improves the screening effect.

[0008] Preferably, a collection box is movably installed inside the bottom side of the box body, a handle is installed on one side of the collection box, and a discharge port is opened inside one side of the box body on the side of the screen plate to facilitate the collection of small particles after screening and the smooth discharge of large particles.

[0009] Preferably, a dust suction pipe is connected to one side of the box body, and one end of the dust suction pipe located inside the box body is connected to a dust suction hood. A dust collecting box is installed on one side of the box body, and one end of the dust suction pipe is connected to the dust collecting box. A filter is installed inside the dust collecting box, and a negative pressure motor is installed on one side of the dust collecting box. Three fan blades are installed on the output end of the negative pressure motor. An exhaust hole is opened on one side of the dust collecting box, which can effectively collect dust generated during the screening process and reduce pollution of the working environment.

[0010] Preferably, a rotating shaft is installed on one side of the output end of the negative pressure motor, one end of the rotating shaft is equipped with a driving gear, a screw rod is rotatably installed between the two sides of the top of the box body, a driven gear is installed on the outer wall of one end of the screw rod, the driving gear and the driven gear are meshed with each other, a guide rod is fixedly connected between the two sides of the dust collecting box, a cleaning brush is movably connected on the outer wall of the guide rod and the screw rod, and the cleaning brush is fitted with the filter screen, which can automatically clean the filter screen to prevent the filter screen from being blocked and maintain the dust collection effect.

[0011] Preferably, a perspective window is provided on one side of the box, and a control panel is installed on the other side of the box. The control panel is used to control the operation of electrical components in the device, which facilitates intuitive observation of the screening process and centralized operation control of the electrical components in the device.

[0012] The utility model is beneficial in that:

[0013] 1. The utility model pours polyurethane particles from the top of the feed pipe, guides the particles to fall into the feed port through the guide plate, and starts the driving motor at the same time to drive the rotating shaft to rotate, so that the rotating roller rotates inside the fixed cylinder. When the storage tank rotates to the feed port position, the particles will fall into the storage tank. With the continuous rotation of the rotating roller, the particles fall from the discharge port into the box body, realizing continuous feeding, ensuring that the particles can enter the screening area evenly and orderly, and improving the screening efficiency and accuracy;

[0014] 2. The output end of the negative pressure motor of the utility model also drives the rotating shaft to rotate, and the driving gear rotates accordingly. The driving gear drives the screw rod to rotate through the meshing transmission with the driven gear, which will cause the cleaning brush to move along the guide rod on the surface of the filter, thereby cleaning the dust adsorbed on the filter to prevent the filter from being blocked. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0016] Figure 1 This is a schematic diagram of the structure of the medium axis side view of the utility model;

[0017] Figure 2 It is a schematic diagram of the main structure of the screening device;

[0018] Figure 3 It is a schematic diagram of the structure of the continuous feeding and dust collection components;

[0019] Figure 4 It is a schematic diagram of the structure of continuous feeding and screening components;

[0020] Figure 5 It is a schematic diagram of the structure of the screening component and the dust collection component.

[0021] In the figure: 1. box body; 2. feed pipe; 3. fixed cylinder; 4. feed port; 5. discharge port; 6. guide plate; 7. drive motor; 8. rotating shaft; 9. rotating roller; 10. storage trough; 11. sleeve; 12. spring; 13. movable rod; 14. sieve plate; 15. collection box; 16. handle; 17. discharge port; 18. dust suction pipe; 19. dust suction hood; 20. dust collection box; 21. filter; 22. negative pressure motor; 23. fan blade; 24. exhaust hole; 25. rotating shaft; 26. driving gear; 27. screw rod; 28. driven gear; 29. ​​guide rod; 30. cleaning brush; 31. perspective window; 32. control panel. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] See also Figure 1-4 As shown, a polyurethane particle screening device comprises a box body 1, a feed pipe 2 is connected to the top side of the box body 1, a fixed cylinder 3 is fixedly connected between the two sides of the feed pipe 2, a feed port 4 and a discharge port 5 are respectively provided on the top and bottom sides of the fixed cylinder 3, guide plates 6 are symmetrically installed on both sides of the top of the feed pipe 2, a drive motor 7 is installed on one side of the feed pipe 2, a rotating shaft 8 is installed on the output end of the drive motor 7, a rotating roller 9 is installed on the outer wall of the rotating shaft 8, eight storage troughs 10 are equidistantly provided inside the rotating roller 9, a perspective window 31 is provided on one side of the box body 1, and a control panel 32 is installed on the other side of the box body 1; during operation, excessive one-time feeding will cause material to flow in the feed pipe 2 and subsequent The particles are accumulated in the screening structure, which may easily cause blockage and cannot ensure that each particle can be fully and evenly screened, thereby reducing the screening accuracy and efficiency of the particles. The polyurethane particles are poured in from the top of the feed pipe 2, and the particles are guided to fall into the feed port 4 through the guide plate 6. At the same time, the drive motor 7 is started to drive the rotating shaft 8 to rotate, so that the rotating roller 9 rotates inside the fixed cylinder 3. When the storage trough 10 rotates to the position of the feed port 4, the particles will fall into the storage trough 10. As the rotating roller 9 continues to rotate, when the storage trough 10 filled with particles turns to the discharge port 5, the particles fall into the box body 1 evenly and continuously from the discharge port 5, thereby realizing continuous feeding, ensuring that the particles can enter the screening area evenly and orderly, and improving the screening efficiency and accuracy.

[0024] See also Figure 1 , 2 As shown in Figures 4 and 5, two sleeves 11 are fixedly installed on both sides of the box body 1, a spring 12 is fixedly connected inside the sleeve 11, one end of the spring 12 is fixedly connected to a movable rod 13, the top end of the movable rod 13 extends to the outside of the sleeve 11 and is fixedly connected to a sieve plate 14, a collection box 15 is movably installed inside the bottom side of the box body 1, a handle 16 is installed on one side of the collection box 15, and a discharge port 17 is opened on one side of the sieve plate 14 inside one side of the box body 1; during operation, in the process of processing polyurethane, it is necessary to screen particles with larger particle sizes, so a screening device is needed. When the polyurethane particles fall onto the sieve plate 14, the impact of the particles will cause the sieve plate 14 to vibrate, and at the same time, the movable rod 13 will compress the spring 12 or the elastic force of the spring 12 will rebound, so that the sieve plate 14 will move up and down, thereby effectively screening the particles. After screening, the smaller particles pass through the sieve plate 14 and fall into the collection box 15. The operator can pull the collection box 15 out of the box body 1 by the handle 16 to process the collected particles. The larger particles will remain on the sieve plate 14 and gradually move to the discharge port 17 under the vibration of the sieve plate 14, and finally be discharged from the discharge port 17 for subsequent processing.

[0025] See also Figure 1-5As shown, a dust suction pipe 18 is connected to one side of the box body 1, and a dust suction cover 19 is connected to one end of the dust suction pipe 18 located inside the box body 1. A dust box 20 is installed on one side of the box body 1, and a filter screen 21 is installed inside the dust box 20. A negative pressure motor 22 is installed on one side of the dust box 20, and three fan blades 23 are installed on the output end of the negative pressure motor 22. An exhaust hole 24 is opened on one side of the dust box 20, and a rotating shaft 25 is installed on one side of the output end of the negative pressure motor 22. A driving gear 26 is assembled on one end of the rotating shaft 25. A screw rod 27 is rotatably installed between the two sides of the top of the box body 1, and a driven gear 28 is installed on the outer wall of one end of the screw rod 27. A guide rod 29 is fixed between the two sides of the dust box 20, and a cleaning brush 30 is movably connected to the outer wall of the guide rod 29 and the screw rod 27. When working, the intense friction between the particles and between the particles and the inner wall of the feeding pipe 2 during feeding will produce More dust will cause pollution to the working environment. During screening, the negative pressure motor 22 is started to drive the fan blades 23 to rotate at high speed, generating negative pressure in the dust box 20. The dust generated during the screening process in the box body 1 is sucked into the dust hood 19, and then enters the dust box 20 through the dust suction pipe 18. The dust will be blocked by the filter 21, and the clean air is discharged from the dust box 20 through the exhaust hole 24, which can effectively collect the dust generated during the screening process and reduce the pollution of the working environment. At the same time, the output end of the negative pressure motor 22 also drives the rotating shaft 25 to rotate, and the driving gear 26 rotates accordingly. The driving gear 26 drives the screw rod 27 to rotate through the meshing transmission with the driven gear 28, which will cause the cleaning brush 30 to move along the guide rod 29 on the surface of the filter 21, thereby cleaning the dust adsorbed on the filter 21, preventing the filter 21 from being blocked, and ensuring the continuous and effective dust collection of the dust box 20. Finally, the door panel in the dust box 20 can be opened to clean the filter 21.

[0026] Working principle: polyurethane particles are poured from the top of the feed pipe 2, and the particles are guided to fall into the feed port 4 through the guide plate 6. At the same time, the drive motor 7 is started to drive the rotating shaft 8 to rotate, so that the rotating roller 9 rotates inside the fixed cylinder 3. When the storage tank 10 rotates to the position of the feed port 4, the particles will fall into the storage tank 10. As the rotating roller 9 continues to rotate, when the storage tank 10 filled with particles turns to the discharge port 5, the particles fall from the discharge port 5 evenly and continuously into the box body 1, realizing continuous feeding, ensuring that the particles can enter the screening area evenly and orderly, and improving the screening efficiency and accuracy;

[0027] When the polyurethane particles fall onto the screen plate 14, the impact of the particles will cause the screen plate 14 to vibrate, and at the same time, the movable rod 13 compresses the spring 12 or the elastic force of the spring 12 rebounds, so that the screen plate 14 moves up and down, thereby effectively screening the particles. After screening, the smaller particles pass through the screen plate 14 and fall into the collection box 15. The operator can pull the collection box 15 out of the box body 1 through the handle 16 to process the collected particles. The larger particles remain on the screen plate 14 and gradually move to the discharge port 17 under the vibration of the screen plate 14, and are finally discharged from the discharge port 17 for subsequent processing;

[0028] During screening, the negative pressure motor 22 is started to drive the fan blades 23 to rotate at high speed, generating negative pressure in the dust box 20. The dust generated during the screening process in the box body 1 is sucked into the dust hood 19, and then enters the dust box 20 through the dust suction pipe 18. The dust will be blocked by the filter 21, and the clean air is discharged from the dust box 20 through the exhaust hole 24, which can effectively collect the dust generated during the screening process and reduce the pollution of the working environment. At the same time, the output end of the negative pressure motor 22 also drives the rotating shaft 25 to rotate, and the driving gear 26 rotates accordingly. The driving gear 26 drives the screw rod 27 to rotate through the meshing transmission with the driven gear 28, which will cause the cleaning brush 30 to move along the guide rod 29 on the surface of the filter 21, thereby cleaning the dust adsorbed on the filter 21, preventing the filter 21 from being blocked, and ensuring the continuous and effective dust collection of the dust box 20. Finally, the door panel in the dust box 20 can be opened to clean the filter 21.

[0029] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0030] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected.

Claims

1. A polyurethane particle screening device, characterized in that: The invention comprises a box body (1), wherein a feed pipe (2) is connected to the top side of the box body (1), a fixed cylinder (3) is fixedly connected between the two sides of the feed pipe (2), a feed port (4) and a discharge port (5) are respectively provided on the top side and the bottom side of the fixed cylinder (3), and the feed port (4) and the discharge port (5) are symmetrically arranged, guide plates (6) are symmetrically arranged on both sides of the top end of the feed pipe (2), one end of the guide plate (6) extends to the top of the feed port (4), a drive motor (7) is installed on one side of the feed pipe (2), a rotating shaft (8) is installed at the output end of the drive motor (7), a rotating roller (9) is installed on the outer wall of the rotating shaft (8), and the rotating roller (9) is arranged inside the fixed cylinder (3), and the radius of the rotating roller (9) is equal to the inner diameter of the fixed cylinder (3), and eight material storage troughs (10) are evenly spaced inside the rotating roller (9).

2. A polyurethane particle screening device according to claim 1, characterized in that: Two sleeves (11) are fixedly mounted on both sides of the box body (1), a spring (12) is fixedly connected inside the sleeve (11), one end of the spring (12) is fixedly connected to a movable rod (13), the top end of the movable rod (13) extends to the outside of the sleeve (11) and is fixedly connected to a screen plate (14).

3. A polyurethane particle screening device according to claim 2, characterized in that: A material collecting box (15) is movably installed inside the bottom side of the box body (1), a handle (16) is installed on one side of the material collecting box (15), and a material discharge port (17) is opened on one side of the screen plate (14) inside one side of the box body (1).

4. A polyurethane particle screening device according to claim 3, characterized in that: A dust suction pipe (18) is connected to one side of the box body (1), and one end of the dust suction pipe (18) located inside the box body (1) is connected to a dust suction cover (19). A dust collecting box (20) is installed on one side of the box body (1), and one end of the dust suction pipe (18) is connected to the dust collecting box (20). A filter screen (21) is installed inside the dust collecting box (20). A negative pressure motor (22) is installed on one side of the dust collecting box (20), and three fan blades (23) are installed at the output end of the negative pressure motor (22). An exhaust hole (24) is opened on one side of the dust collecting box (20).

5. A polyurethane particle screening device according to claim 4, characterized in that: A rotating shaft (25) is installed on one side of the output end of the negative pressure motor (22), and a driving gear (26) is installed on one end of the rotating shaft (25). A screw rod (27) is rotatably installed between the two sides of the top of the box body (1), and a driven gear (28) is installed on the outer wall of one end of the screw rod (27). The driving gear (26) and the driven gear (28) are meshed with each other. A guide rod (29) is fixed between the two sides of the dust collecting box (20), and a cleaning brush (30) is movably connected to the outer wall of the guide rod (29) and the screw rod (27), and the cleaning brush (30) is arranged in close contact with the filter screen (21).

6. A polyurethane particle screening device according to claim 5, characterized in that: A perspective window (31) is provided on one side of the box (1), and a control panel (32) is installed on the other side of the box (1). The control panel (32) is used to control the operation of electrical components in the device.

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