Plastic particle screening device
By designing a plastic particle screening device with a screw conveying shaft and adsorption head, the problems of insufficient screening and dust dissipation in the prior art are solved, and a more efficient screening and a safer working environment are achieved.
Patent Information
- Application Number
- CN202420923852.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-30
- Publication Date
- 2025-01-07
- Estimated Expiration
- 2034-04-30
AI Technical Summary
The existing plastic particle screening device is not sufficient during the screening process, resulting in the mixing of qualified plastic particles with impurities, causing waste, and the dissipation of dust is harmful to health and has poor use effect.
A plastic particle screening device including a screen cylinder, a guide plate, a feed pipe and an air transport pump is designed. The screen cylinder is driven to rotate through a driving mechanism for screening, and circulating screening is performed using a screw conveyor shaft, and through an adsorption head and filter net The cylinder adsorbs and filters dust to prevent dust from drifting away.
The sufficiency of screening is achieved, waste is reduced, and dust is effectively prevented from drifting into the environment, improving the use effect.
Smart Images
Figure CN222306373U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of screening devices, in particular to a plastic particle screening device. Background Art
[0002] Plastic granules are a type of plastic material. Common types include general-purpose plastics, engineering plastics, special plastics, etc. During the processing and production process, plastic granules need to be screened through a screening device.
[0003] The existing screening device generally has a screen plate installed on a frame, a hopper installed above the screen plate, and a vibration motor to control the vibration of the screen plate. During screening, the staff put the raw materials into the hopper, and the raw materials fall along the hopper onto the screen plate for screening. However, due to insufficient screening in a single screening, some qualified plastic pellets will be mixed with impurities, causing waste. In addition, during the screening process of plastic pellets, dust adhering to the surface of the plastic pellets will float into the air, and the staff will easily inhale the dust into the body, which will affect their health and the use effect is poor. For this reason, we propose a plastic pellet screening device. Utility Model Content
[0004] The purpose of the utility model is to solve the above-mentioned shortcomings in the prior art and to propose a plastic particle screening device.
[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a plastic pellet screening device is designed, comprising a first shell, the bottom of which is fixed to a base through a plurality of legs, and a bucket elevator is installed at one end of the base;
[0006] A screen drum is provided inside the first shell, a distance exists between one end of the screen drum and the end of the first shell, and the screen drum is connected to the first shell through a driving mechanism;
[0007] A first material guide plate is installed inside the first shell, the first material guide plate is located below the screen drum, and the first material guide plate is inclined, and one end of the screen drum extends to the outside of the first material guide plate;
[0008] A second material guide plate is installed at one end of the first material guide plate, both sides of the second material guide plate are fixed on the inner wall of the first shell, the second material guide plate is inclined, and the bottom of the second material guide plate extends to the outside of the screen drum;
[0009] A feeding pipe is installed at one side of the bottom of the first shell, and a screw conveying shaft is rotatably connected inside the feeding pipe. One end of the screw conveying shaft is connected to a first driving motor, and the first driving motor is fixed on the side of the first shell. The other end of the feeding pipe extends to one side of the bucket elevator, and a discharge pipe is also installed at the bottom of the feeding pipe;
[0010] Two U-shaped frames are installed on the top of the first shell, and the two U-shaped frames are connected by a mounting plate. An air pump is installed on the top of the mounting plate. An air intake pipe is installed at the air intake end of the air pump. An adsorption pipe is connected to the end of the air intake pipe. The adsorption pipe runs through the sieve cylinder, and a section of the adsorption pipe located inside the sieve cylinder is equidistantly equipped with a plurality of adsorption heads, which are located above the inside of the sieve cylinder.
[0011] The air outlet end of the air delivery pump is connected with an exhaust pipe, the end of the exhaust pipe is connected with a filter screen cylinder, and the filter screen cylinder is installed on the base.
[0012] Preferably, the bucket elevator comprises a second housing fixed on the base, a feeding port is installed at the top of one side of the second housing close to the first housing, the feeding port extends to the inside of the screen drum, a hopper is installed at the bottom of the other side of the second housing, the end of the discharge pipe extends above the hopper, and the bottom of the discharge pipe is connected to the top of the hopper;
[0013] The second outer shell is internally rotatably connected to a plurality of support shafts, which are connected by a conveyor belt, and one end of the uppermost support shaft is connected to a second drive motor, which is fixed to the second outer shell. A plurality of conveyor buckets are equidistantly installed on the side of the conveyor belt, and a clearance fit exists between the edge of the conveyor bucket and the inner wall of the second outer shell.
[0014] Preferably, the driving mechanism includes driving wheels symmetrically arranged on both sides of the first shell, the side surfaces of each pair of driving wheels are in contact with both sides of the circular track, one end of the driving wheel is rotatably connected to a mounting frame, and the mounting frame is fixed on the side surface of the first shell, one end of one of the driving wheels is connected to a third driving motor, the third driving motor is fixed on the side surface of the first shell, and the third driving motor is located on one side of the second shell.
[0015] Preferably, a strip guide block is symmetrically installed on one side of the top of the first guide plate near the lower end, and there is a spacing between the ends of the strip guide blocks. A discharge port is opened on the side of the first shell, and the discharge port is located above the first guide plate, and the width of the discharge port is greater than the spacing between the ends of the two strip guide blocks.
[0016] Preferably, there is a gap between the bottom of the second material guide plate and the bottom of the first housing.
[0017] Preferably, the discharge pipe is a metal shaped hose, and a collection box is installed on the top of the base near one end of the discharge pipe.
[0018] Preferably, the bottom of the first shell is inclined, and the feeding pipe is located on one side of the bottom of the first shell close to the lower end.
[0019] Preferably, a control cabinet is installed on one side of the first housing, and a controller inside the control cabinet is connected to the first drive motor, the second drive motor, the third drive motor and the air pump respectively through wires.
[0020] The design scheme proposed by the utility model has the following beneficial effects during application:
[0021] 1. The first driving motor drives the screw conveyor shaft to rotate, and the unqualified plastic particles and impurities after screening are transported to the hopper for cyclic screening, and the screening is sufficient.
[0022] 2. The air pump can be used to control the suction head to generate suction, which can absorb the dust floating in the screening process and transport it to the filter cylinder for filtration, thus preventing the dust from floating into the surrounding environment and improving the use effect. BRIEF DESCRIPTION OF THE DRAWINGS
[0023] Figure 1 The structure of the utility model is shown in FIG. Figure 1 ;
[0024] Figure 2 The structure of the utility model is shown in FIG. Figure 2 ;
[0025] Figure 3 It is a structural side sectional view of the first housing of the utility model;
[0026] Figure 4 It is a side sectional view of the feeding pipe structure of the utility model;
[0027] Figure 5 It is a structural schematic diagram of the first material guide plate and the second material guide plate of the utility model;
[0028] Figure 6 It is a front cross-sectional view of the structure of the first housing of the utility model;
[0029] Figure 7 It is a structural side sectional view of the second shell of the utility model.
[0030] In the figure: 1. base; 2. support leg; 3. first drive motor; 4. first shell; 5. U-shaped frame; 6. screen drum; 7. circular track; 8. discharge port; 9. air inlet pipe; 10. exhaust pipe; 11. air pump; 12. adsorption tube; 13. second drive motor; 14. second shell; 15. feed pipe; 16. discharge pipe; 17. hopper; 18. filter screen drum; 19. mounting plate; 20. third drive motor; 21. adsorption head; 22. drive wheel; 23. first guide plate; 24. mounting frame; 25. second guide plate; 26. conveying bucket; 27. spiral conveying shaft; 28. strip guide block; 29. support shaft; 30. conveyor belt; 31. feed port; 32. control cabinet. DETAILED DESCRIPTION
[0031] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.
[0032] Reference Figure 1-Figure 4 A plastic pellet screening device includes a first shell 4, the bottom of which is fixed to a base 1 through a plurality of legs 2, a control cabinet 32 is installed on one side of the first shell 4, a controller is installed inside the control cabinet 32, and the controller is one of a control mainboard, a host or a PLC logic controller.
[0033] A sieve drum 6 is provided inside the first outer shell 4. There is a gap between one end of the sieve drum 6 and the end of the first outer shell 4, and the sieve drum 6 is connected to the first outer shell 4 through a driving mechanism. By pouring plastic particles into the sieve drum 6, the driving mechanism can drive the sieve drum 6 to rotate, so that the plastic particles roll in the sieve drum 6, and screening can be completed.
[0034] It should be noted that if Figure 3 As shown, the sieve drum 6 is arranged at an angle, so that the plastic particles conveyed into the sieve drum 6 will move along the sieve drum 6 under the action of gravity, and the plastic particles of qualified size will pass through the side of the sieve drum 6, while other unqualified plastic particles and impurities will directly pass through the other end of the sieve drum 6.
[0035] like Figure 3 and Figure 6 As shown, the driving mechanism includes driving wheels 22 symmetrically arranged on both sides of the first shell 4, and the side surfaces of each pair of driving wheels 22 are in contact with both sides of the circular track 7. One end of the driving wheel 22 is rotatably connected to the mounting frame 24, and the mounting frame 24 is fixed on the side surface of the first shell 4. One end of one of the driving wheels 22 is connected to the third driving motor 20, and the third driving motor 20 is fixed on the side surface of the first shell 4. The third driving motor 20 is located on one side of the second shell 14, and the third driving motor 20 is connected to the controller through a wire. In actual use, the third driving motor 20 can be controlled by the controller to drive the driving wheel 22 to rotate, and then the screen drum 6 is driven to rotate under the action of the circular track 7 to screen the plastic particles.
[0036] like Figure 1 and Figure 7 As shown, a bucket elevator is installed at one end of the base 1, and the bucket elevator includes a second shell 14 fixed on the base 1, a feeding port 31 is installed at the top of one side of the second shell 14 close to the first shell 4, and a hopper 17 is installed at the bottom of the other side of the second shell 14. In actual use, the staff pours the plastic pellets into the hopper 17, and they can be transported to the screen drum 6 under the action of the bucket elevator, which is convenient for loading.
[0037] like Figure 7 As shown, a plurality of support shafts 29 are rotatably connected inside the second shell 14, and the support shafts 29 are connected by a conveyor belt 30. The conveyor belt 30 can be supported by the support shafts 29, so that the conveyor belt 30 remains stable during movement.
[0038] like Figure 7 As shown, one end of the support shaft 29 located at the top is connected to the second drive motor 13, the second drive motor 13 is fixed on the second shell 14, the second drive motor 13 is connected to the controller through a wire, and a plurality of conveying buckets 26 are equidistantly installed on the side of the conveyor belt 30, and the gap between the edge of the conveying bucket 26 and the inner wall of the second shell 14 is matched. In actual use, the second drive motor 13 is controlled by the controller to work, and the second drive motor 13 can drive the conveyor belt 30 to move, and then drive the conveying bucket 26 to move. The plastic particles in the hopper 17 fall into the conveying bucket 26 and are transported to the feeding port 31 through the conveying bucket 26. Finally, the plastic particles are transported along the feeding port 31 to the screen drum 6 for screening.
[0039] like Figure 3 As shown, a first guide plate 23 is installed inside the first shell 4, the first guide plate 23 is located below the screen drum 6, and the first guide plate 23 is inclined. One end of the screen drum 6 extends to the outside of the first guide plate 23. A discharge port 8 is opened on the side of the first shell 4, and the discharge port 8 is located above the first guide plate 23. The plastic particles passing through the side wall of the screen drum 6 will fall on the first guide plate 23 and be discharged from the first shell 4 from the discharge port 8 for collection.
[0040] It should be noted that if Figure 1 and Figure 5 As shown, a strip guide block 28 is symmetrically installed on one side of the top of the first guide plate 23 near the lower end, and there is a spacing between the ends of the strip guide blocks 28. The width of the discharge port 8 is greater than the spacing between the ends of the two strip guide blocks 28. Under the action of the strip guide blocks 28, the plastic particles falling on the first guide plate 23 can be aggregated, so that the plastic particles are discharged from the discharge port 8 under the action of gravity.
[0041] like Figure 3 and Figure 5 As shown, a second guide plate 25 is installed at one end of the first guide plate 23, and both sides of the second guide plate 25 are fixed on the inner wall of the first shell 4. The second guide plate 25 is inclined, and the bottom of the second guide plate 25 extends to the outside of the screen drum 6. There is a gap between the bottom of the second guide plate 25 and the bottom of the first shell 4. Impurities and unqualified plastic particles discharged from the other end of the screen drum 6 will fall into the bottom of the first shell 4 along the second guide plate 25, so that the screened plastic particles can be separated.
[0042] like Figure 1 and Figure 4 As shown, a feeding pipe 15 is installed on one side of the bottom of the first shell 4, the bottom of the first shell 4 is inclined, and the feeding pipe 15 is located on one side of the bottom of the first shell 4 near the lower end, and the internal rotation of the feeding pipe 15 is connected to a screw conveying shaft 27, one end of the screw conveying shaft 27 is connected to a first drive motor 3, the first drive motor 3 is fixed on the side of the first shell 4, the first drive motor 3 is connected to the controller through a wire, and the other end of the feeding pipe 15 extends to one side of the second shell 14, and a discharge pipe 16 is also installed at the bottom of the feeding pipe 15, one end of the discharge pipe 16 extends above the hopper 17, impurities and unqualified plastic particles falling into the bottom of the first shell 4 will flow into the feeding pipe 15 under the action of gravity, and the first drive motor 3 can be controlled to work by the controller at the same time, and the first drive motor 3 can drive the screw conveying shaft 27 to rotate, and under the action of the screw conveying shaft 27, the impurities and unqualified plastic particles are transported to the hopper 17 through the discharge pipe 16 for circulation screening.
[0043] It should be noted that the discharge pipe 16 is a metal shaped hose, and the bottom of the discharge pipe 16 is connected to the top of the hopper 17. The discharge pipe 16 can be supported by the hopper 17 to prevent the end of the discharge pipe 16 from being squeezed by the plastic particles and detached from the top of the hopper 17. After the screening is completed, the staff can change the direction of the end of the discharge pipe 16 to discharge the screened impurities into the collection box.
[0044] like Figure 2 and Figure 3 As shown, two U-shaped frames 5 are installed on the top of the first shell 4, and the two U-shaped frames 5 are connected by a mounting plate 19. An air pump 11 is installed on the top of the mounting plate 19. An air intake pipe 9 is installed at the air intake end of the air pump 11. The end of the air intake pipe 9 is connected to an adsorption tube 12. The adsorption tube 12 runs through the sieve cylinder 6, and a section of the adsorption tube 12 inside the sieve cylinder 6 is equidistantly installed with a plurality of adsorption heads 21. The adsorption head 21 is located above the inside of the sieve cylinder 6. The air pump 11 is connected to the controller through a wire. In actual use, the air pump 11 can control the adsorption head 21 to generate suction, so as to adsorb the dust floating in the screening process and prevent the dust from floating into the surrounding environment.
[0045] like Figure 2 As shown, the air outlet end of the air pump 11 is connected to the exhaust pipe 10, and the end of the exhaust pipe 10 is connected to the filter screen cylinder 18. The filter screen cylinder 18 is installed on the base 1. The dust adsorbed by the air pump 11 can be discharged into the filter screen cylinder 18 under the action of the exhaust pipe 10. The dust is filtered by the filter screen cylinder 18, and the clean air passes through the filter screen cylinder 18 and is discharged into the external environment.
[0046] Specifically, when the utility model is used, the staff pours the plastic pellets into the hopper 17, the controller controls the second drive motor 13 to work, the second drive motor 13 drives the conveyor belt 30 to work, and the plastic pellets are transported from the feed port 31 to the screen drum 6 through the conveying bucket 26. At the same time, the controller controls the third drive motor 20 and the first drive motor 3 to work, the third drive motor 20 drives the drive wheel 22 to rotate, the drive wheel 22 drives the screen drum 6 to rotate, the plastic pellets roll in the screen drum 6, the qualified plastic pellets pass through the side wall of the screen drum 6 and fall onto the first guide plate 23 below, and are discharged from the discharge port 8, and the unqualified plastic pellets and impurities are discharged. It is discharged from the other end of the screen cylinder 6, and falls into the bottom of the first shell 4 under the action of the second guide plate 25, and enters the feed pipe 15 along the bottom flow channel of the first shell 4. The first drive motor 3 drives the spiral conveying shaft 27 to rotate, and the plastic particles and impurities that fall into the feed pipe 15 are discharged from the discharge pipe 16 to the hopper 17 for cyclic screening. The screening is sufficient. During the screening, the controller controls the air pump 11 to work. The air pump 11 generates suction through the air inlet pipe 9 and the adsorption pipe 12 to generate suction in the adsorption head 21, so as to adsorb the dust floating in the screening process, and discharge the dust into the filter cylinder 18 through the exhaust pipe 10 for filtration.
[0047] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.
Claims
1. A plastic pellet screening device, comprising a first housing (4), characterized in that: The bottom of the first housing (4) is fixed to the base (1) via a plurality of legs (2), and a bucket elevator is installed at one end of the base (1); A sieve drum (6) is provided inside the first outer shell (4), a distance exists between one end of the sieve drum (6) and the end of the first outer shell (4), and the sieve drum (6) is connected to the first outer shell (4) via a driving mechanism; A first material guide plate (23) is installed inside the first housing (4), the first material guide plate (23) is located below the screen drum (6), and the first material guide plate (23) is inclined, and one end of the screen drum (6) extends to the outside of the first material guide plate (23); A second material guide plate (25) is installed at one end of the first material guide plate (23), both sides of the second material guide plate (25) are fixed to the inner wall of the first shell (4), the second material guide plate (25) is inclined, and the bottom of the second material guide plate (25) extends to the outside of the screen drum (6); A feeding pipe (15) is installed on one side of the bottom of the first housing (4), a screw conveying shaft (27) is rotatably connected inside the feeding pipe (15), one end of the screw conveying shaft (27) is connected to a first drive motor (3), the first drive motor (3) is fixed on the side of the first housing (4), the other end of the feeding pipe (15) extends to one side of the bucket elevator, and a discharge pipe (16) is also installed at the bottom of the feeding pipe (15); Two U-shaped frames (5) are installed on the top of the first housing (4), and the two U-shaped frames (5) are connected via a mounting plate (19). An air pump (11) is installed on the top of the mounting plate (19). An air intake pipe (9) is installed at the air intake end of the air pump (11), and an adsorption pipe (12) is connected to the end of the air intake pipe (9). The adsorption pipe (12) passes through the sieve cylinder (6), and a section of the adsorption pipe (12) located inside the sieve cylinder (6) is equidistantly installed with a plurality of adsorption heads (21), and the adsorption heads (21) are located above the inside of the sieve cylinder (6); The air outlet end of the air delivery pump (11) is connected to an exhaust pipe (10), the end of the exhaust pipe (10) is connected to a filter screen cartridge (18), and the filter screen cartridge (18) is installed on the base (1).
2. A plastic pellet screening device according to claim 1, characterized in that: The bucket elevator comprises a second housing (14) fixed on a base (1), a feeding port (31) being installed at the top of one side of the second housing (14) close to the first housing (4), the feeding port (31) extending into the interior of the screen drum (6), a hopper (17) being installed at the bottom of the other side of the second housing (14), the end of a discharge pipe (16) extending above the hopper (17), and the bottom of the discharge pipe (16) being connected to the top of the hopper (17); A plurality of support shafts (29) are rotatably connected inside the second housing (14), the support shafts (29) are connected to each other via a conveyor belt (30), one end of the support shaft (29) located at the top is connected to a second drive motor (13), the second drive motor (13) is fixed on the second housing (14), and a plurality of conveying buckets (26) are equidistantly installed on the side of the conveyor belt (30), and the edges of the conveying buckets (26) are gap-matched with the inner wall of the second housing (14).
3. A plastic pellet screening device according to claim 2, characterized in that: The driving mechanism comprises driving wheels (22) symmetrically arranged on both sides of the interior of the first housing (4), the side surfaces of each pair of driving wheels (22) contacting both sides of the annular track (7), one end of the driving wheel (22) being rotatably connected to a mounting frame (24), the mounting frame (24) being fixed on the side surface of the first housing (4), one end of one of the driving wheels (22) being connected to a third driving motor (20), the third driving motor (20) being fixed on the side surface of the first housing (4), and the third driving motor (20) being located on one side of the second housing (14).
4. The plastic pellet screening device according to claim 1, characterized in that: A strip guide block (28) is symmetrically mounted on one side of the top of the first guide plate (23) close to the lower end, and there is a spacing between the ends of the strip guide blocks (28). A discharge port (8) is provided on the side of the first housing (4), and the discharge port (8) is located above the first guide plate (23), and the width of the discharge port (8) is greater than the spacing between the ends of the two strip guide blocks (28).
5. The plastic pellet screening device according to claim 1, characterized in that: There is a gap between the bottom of the second material guide plate (25) and the bottom of the first housing (4).
6. A plastic pellet screening device according to claim 1, characterized in that: The discharge pipe (16) is a metal shaped hose, and a collection box is installed at one end of the top of the base (1) close to the discharge pipe (16).
7. The plastic pellet screening device according to claim 1, characterized in that: The bottom of the first shell (4) is arranged to be inclined, and the feeding pipe (15) is located on one side of the bottom of the first shell (4) close to the lower end.
8. The plastic pellet screening device according to claim 1, characterized in that: A control cabinet (32) is installed on one side of the first housing (4), and a controller inside the control cabinet (32) is connected to the first drive motor (3), the second drive motor (13), the third drive motor (20) and the air delivery pump (11) respectively through wires.