A dust-free conveying device for plastic granules
By combining a screw conveyor with a dust collection box and an air pump system, the problems of dust dispersion and tilt angle adjustment during the conveying of plastic granules are solved, achieving dust-free conveying and flexible angle adjustment, thus improving the cleanliness of the working environment and ease of use.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANGHAI XINSIWEI NEW MATERIAL TECH CO LTD
- Filing Date
- 2025-07-30
- Publication Date
- 2026-06-16
AI Technical Summary
Existing plastic pellet conveying devices have problems with dust dispersion and tilt angle adjustment, which affect the working environment and ease of use.
The system employs a screw conveyor combined with a dust collection box and an air pump system. Dust is drawn in by negative pressure and filtered by filter cotton. The tilt angle of the conveyor cylinder is adjusted by an electric cylinder and a hinge structure, achieving dust-free conveying and flexible angle adjustment.
It effectively reduces dust pollution, improves the stability of plastic pellet conveying and the cleanliness of the working environment, while also improving ease of use and conveying efficiency.
Smart Images
Figure CN224362129U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of conveying device technology, and more specifically, to a dust-free conveying device for plastic granules. Background Technology
[0002] Amino molding compound granules generally refer to thermosetting molding granules made by adding wood fiber, curing agent, lubricant, pigment, and other additives to the condensation products of melamine or urea and formaldehyde. This material has excellent heat resistance, flame retardant properties, and excellent resistance to electrical breakdown and arcing. Unlike phenolic molding compounds, amino molding compounds can be colored arbitrarily, so they are widely used in electronics, electrical appliances, automobiles, daily necessities, and other fields. When conveying amino molding compound granules, a screw conveyor device is required to facilitate the transport of the granules.
[0003] After searching, it was found that the application with application number CN202421977925.7, entitled "A Screw Conveying Device for Plastic Particles", uses a screw conveyor to transport plastic particles. The dust contained in the plastic particles will be dispersed into the working environment during the conveying process, causing pollution to the working environment and affecting the breathing of workers. The dust dispersion is more serious, especially during the feeding and discharging processes. At the same time, the tilt angle is not convenient to adjust, and it is difficult to adjust the conveying angle and conveying height, which affects the convenience of adjustment and use. Further improvements can be made.
[0004] To address the aforementioned problems, this application provides a dust-free conveying device for plastic granules. Utility Model Content
[0005] The dust-free conveying device for plastic granules provided in this application adopts the following technical solution:
[0006] A dust-free conveying device for plastic granules includes a base plate and a conveying cylinder. The conveying cylinder, which is a metal cylinder, is mounted on top of the base plate. An auger is rotatably connected inside the conveying cylinder, with both ends of the auger rotatably connected to the conveying cylinder via sealed bearings. A drive motor is fixedly mounted at one end of the conveying cylinder, and the output end of the drive motor is fixedly connected to the mounting end of the auger. A dust inlet pipe is connected through the top of the conveying cylinder, with the dust inlet pipes evenly spaced. A dust collection box is fixedly mounted on the outside of the dust inlet pipe, with the bottom surface of the dust collection box sealed to the outer wall of the dust inlet pipe. A perforated plate is fixedly mounted inside the dust collection box to facilitate airflow. Filter cotton is fixedly mounted on the top surface of the perforated plate to filter dust. An air pump is fixedly mounted on the top surface of the other end of the conveying cylinder. The air pump is a common air extraction device for easy air extraction, and the input end of the air pump is connected through an air extraction pipe located below the perforated plate.
[0007] Through the above technical solution, the auger and the conveyor cylinder are arranged coaxially. The auger is a common conveying equipment. The inner wall of the conveyor cylinder is polished to reduce material residue. The surface of the perforated plate is densely covered with ventilation holes. The filter cotton pores are smaller than the dust particle size. Dust is removed during the conveying of plastic granules through the dust collection box, avoiding the problem of dust scattering during the conveying process, improving the stability of plastic granule conveying, reducing environmental pollution, and facilitating clean production.
[0008] Furthermore, a side plate is fixedly installed on one side wall of the conveying cylinder. Two sets of side plates are arranged, and the bottom surface of the side plate is hinged to a support leg via a second hinge seat. Two sets of support legs are also arranged. The second hinge seat facilitates changing the angle between the support leg and the side plate, making it convenient for the conveying cylinder to flip. The bottom surface of the support leg is fixedly connected to the top surface of the base plate to fix the support leg, which provides support. An end plate is fixedly installed on the bottom surface of the other end of the conveying cylinder. Two sets of end plates are arranged, and a guide rod is fixedly connected between the end plates. The guide rod is a smooth metal round rod, and it is arranged parallel to the length direction of the conveying cylinder. A slider is slidably sleeved on the outside of the guide rod, and the top surface of the slider slidably abuts against the bottom surface of the conveying cylinder. An electric cylinder is hinged to the bottom surface of the slider via a first hinge seat. The first hinge seat is hinged to the top of the moving rod of the electric cylinder, and the bottom surface of the electric cylinder is fixedly connected to the top surface of the base plate. The electric cylinder also provides support.
[0009] The above technical solution allows for adjustment of the tilt angle of the conveyor cylinder by extending and retracting the electric cylinder, facilitating material lifting and conveying, and further improving ease of use and conveying efficiency.
[0010] Furthermore, a feed hopper is connected to the top surface of one end of the conveying cylinder, and the top opening of the feed hopper is a through structure. An outlet is connected to the bottom surface of the other end of the conveying cylinder, and the bottom opening of the outlet is a through structure.
[0011] With the above technical solution, the feed hopper has a funnel-shaped structure, which facilitates material feeding, and the discharge port facilitates the discharge of plastic granules.
[0012] Furthermore, multiple sets of dust inlet pipes are arranged. The dust inlet pipes are made of metal round pipes, and the bottom opening of the dust inlet pipe is sealed to the top surface of the conveying cylinder to avoid air leakage.
[0013] With the above technical solution, multiple sets of dust inlet pipes are arranged, and the distance between the top opening of the dust inlet pipe and the top surface of the dust collection box is not less than 5cm, so that dust can easily enter the dust collection box.
[0014] Furthermore, the inner side of the dust inlet pipe is provided with holes on the top surface of the conveying cylinder, and multiple sets of holes are arranged.
[0015] The above technical solution ensures that the aperture of the pores is smaller than the minimum particle size of the plastic particles, preventing plastic particles from entering the dust inlet pipe, improving the stability of the conveying process, and preventing plastic particle leakage.
[0016] Furthermore, the top opening of the dust inlet pipe is located above the perforated plate and the filter cotton, and the inner wall of the dust inlet pipe is smooth to reduce dust adhesion.
[0017] With the above technical solution, the outer wall of the dust inlet pipe is sealed to the orifice plate, and the outer wall of the dust inlet pipe abuts against the filter cotton, preventing dust from flowing out along the gap between the filter cotton and the dust inlet pipe, thus preventing dust leakage.
[0018] Furthermore, the dust collection box is hinged to a cleaning door on its front facade, and the cleaning door is a double-leaf door.
[0019] The above technical solution uses a sealed door to prevent dust leakage, while also making it convenient for staff to open and clean the dust.
[0020] In summary, this application includes the following beneficial technical effects:
[0021] Dust collection bins are used to remove dust during the conveying of plastic granules, preventing dust dispersion during transport, improving the stability of plastic granule conveying, reducing environmental pollution, and facilitating clean production. During conveying, plastic granules enter the conveying cylinder through the feed hopper. The drive motor rotates the auger to convey the plastic granules. An air pump is activated to extract air from the dust collection bin, creating a negative pressure state in the dust inlet pipe. Dust from the plastic granules is drawn into the dust inlet pipe under this negative pressure. The dust is filtered by filter cotton and remains above the filter cotton. The dust inlet pipe is connected to the conveying cylinder, and the conveying cylinder... The feed hopper and discharge port are connected, and the inside of the conveying cylinder is under negative pressure. External air is introduced into the feed hopper and discharge port to prevent dust from escaping. This further prevents dust from escaping during feeding and discharging, achieving dust-free conveying with high efficiency and ease of use. Furthermore, this application adjusts the extension and retraction of the electric cylinder to move the slider along the guide rod, which in turn rotates the conveying cylinder along the second hinge seat, thereby adjusting the tilt angle of the conveying cylinder for convenient material lifting and conveying, further improving ease of use and conveying efficiency. Attached Figure Description
[0022] Figure 1 This is a schematic diagram of the overall internal structure of this application;
[0023] Figure 2 This is the overall front view of this application;
[0024] Figure 3 This is an enlarged view of node A in this application;
[0025] Figure 4 This is a schematic diagram of the overall external structure of this application.
[0026] Explanation of the labels in the diagram:
[0027] 1. Conveyor cylinder; 2. Base plate; 3. Support leg; 4. Electric cylinder; 5. End plate; 6. Guide rod; 7. Slider; 8. First hinge seat; 9. Drive motor; 10. Screwdriver; 11. Feed hopper; 12. Discharge port; 13. Perforated plate; 14. Hole; 15. Dust inlet pipe; 16. Dust collection box; 17. Filter cotton; 18. Air pump; 19. Air extraction pipe; 20. Cleaning door; 21. Side plate; 22. Second hinge seat. Detailed Implementation
[0028] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.
[0029] In the description of this application, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0030] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.
[0031] Example:
[0032] This application discloses a dust-free conveying device for plastic granules. Please refer to [link / reference]. Figure 1 and Figure 3The system includes a base plate 2 and a conveyor cylinder 1. The conveyor cylinder 1, which is a metal cylinder, is mounted on top of the base plate 2. An auger 10 is rotatably connected inside the conveyor cylinder 1. Both ends of the auger 10 are rotatably connected to the conveyor cylinder 1 via sealed bearings. A drive motor 9 is fixedly mounted on one end of the conveyor cylinder 1, and the output end of the drive motor 9 is fixedly connected to the mounting end of the auger 10. A dust inlet pipe 15 is connected through the top of the conveyor cylinder 1. The dust inlet pipes 15 are evenly spaced, and a dust collection box 16 is fixedly mounted on the outside of the dust inlet pipe 15. The bottom surface of the dust collection box 16 is sealed to the outer wall of the dust inlet pipe 15. A perforated plate 13 is fixedly installed inside the conveyor cylinder 16 to facilitate airflow. A filter cotton 17 is fixedly installed on the top surface of the perforated plate 13 to filter dust. An air pump 18 is fixedly installed on the top surface of the other end of the conveyor cylinder 1. The air pump 18 is a common air extraction device for easy air extraction. The input end of the air pump 18 is connected to the dust collection box 16 through an air extraction pipe 19 located below the perforated plate 13. An auger 10 is coaxially arranged with the conveyor cylinder 1. The auger 10 is a common conveying device. The inner wall of the conveyor cylinder 1 is polished to reduce material residue. The surface of the perforated plate 13 is densely perforated. The filter cotton 17 has pores smaller than the dust particle size. Dust is removed during the conveying process of the plastic granules via the dust collection box 16, preventing dust dispersion during transport, improving the stability of the plastic granule conveying, reducing environmental pollution, and facilitating clean production. During the conveying process, the plastic granules enter the conveying cylinder 1 through the feed hopper 11. The drive motor 9 drives the auger 10 to rotate, conveying the plastic granules. The vacuum pump 18 starts, extracting air from inside the dust collection box 16, thus creating a negative pressure state in the dust inlet pipe 15. Dust in the plastic granules is attracted under this negative pressure. The dust enters the dust inlet pipe 15 and is filtered by the filter cotton 17, remaining above the filter cotton 17. The dust inlet pipe 15 is connected to the conveying cylinder 1, which is connected to the feed hopper 11 and the discharge port 12. The inside of the conveying cylinder 1 is under negative pressure, and the feed hopper 11 and the discharge port 12 are also under negative pressure. Outside air is supplied to the feed hopper 11 and the discharge port 12. The air supplied to the feed hopper 11 and the discharge port 12 prevents dust from escaping from the feed hopper 11 and the discharge port 12, further preventing dust from escaping during feeding and discharging, achieving dust-free conveying, high working efficiency, and convenient and simple use.
[0033] Please see Figure 2 and Figure 4A side plate 21 is fixedly installed on one side wall of the conveyor cylinder 1. Two sets of side plates 21 are arranged, and the bottom surface of the side plate 21 is hinged to a support leg 3 via a second hinge seat 22. Two sets of support legs 3 are arranged. The second hinge seat 22 facilitates changing the angle between the support leg 3 and the side plate 21, making it easy for the conveyor cylinder 1 to flip. The bottom surface of the support leg 3 is fixedly connected to the top surface of the base plate 2 to fix the support leg 3, which provides support. An end plate 5 is fixedly installed on the bottom surface of the other end of the conveyor cylinder 1. Two sets of end plates 5 are arranged, and a guide rod 6 is fixedly connected between the end plates 5. The guide rod 6 is a smooth metal round rod, and the guide rod 6 is connected to the conveyor cylinder 1. The conveying cylinder 1 is arranged parallel along its length, and a slider 7 is slidably sleeved on the outside of the guide rod 6. The top surface of the slider 7 slides against the bottom surface of the conveying cylinder 1. The bottom surface of the slider 7 is hinged to an electric cylinder 4 through a first hinge seat 8. The first hinge seat 8 is hinged to the top of the moving rod of the electric cylinder 4, and the bottom surface of the electric cylinder 4 is fixedly connected to the top surface of the base plate 2. The electric cylinder 4 also serves as a support. By adjusting the extension and retraction of the electric cylinder 4, the slider 7 is pushed to move along the guide rod 6, which pushes the conveying cylinder 1 to rotate along the second hinge seat 22, thereby adjusting the inclination angle of the conveying cylinder 1, facilitating material lifting and conveying, and further improving the convenience of use and conveying efficiency.
[0034] Please see Figure 1 The top surface of one end of the conveying cylinder 1 is connected to the feed hopper 11, the top opening of the feed hopper 11 is a through structure, and the bottom surface of the other end of the conveying cylinder 1 is connected to the discharge port 12, the bottom opening of the discharge port 12 is a through structure. The feed hopper 11 is a funnel-shaped structure, which facilitates the feeding of materials, and the discharge port 12 facilitates the discharge of plastic particles. This is a common structure in the field.
[0035] Please see Figure 1 Multiple sets of dust inlet pipes 15 are arranged. The dust inlet pipes 15 are made of metal round pipes, and the bottom opening of the dust inlet pipes 15 is sealed to the top surface of the conveying cylinder 1 to avoid air leakage. Multiple sets of dust inlet pipes 15 are arranged. The distance between the top opening of the dust inlet pipes 15 and the inner top surface of the dust collection box 16 is not less than 5cm, so that dust can easily enter the dust collection box 16.
[0036] Please see Figure 1 and Figure 3 The dust inlet pipe 15 has holes 14 on the top surface of the conveying cylinder 1. Multiple sets of holes 14 are arranged. The diameter of the holes 14 is smaller than the minimum particle size of the plastic particles, so as to prevent plastic particles from entering the dust inlet pipe 15, improve the stability of conveying, and prevent plastic particles from leaking.
[0037] Please see Figure 1 and Figure 3 The top opening of the dust inlet pipe 15 is located above the perforated plate 13 and the filter cotton 17. The inner wall of the dust inlet pipe 15 is smooth to reduce dust adhesion. The outer wall of the dust inlet pipe 15 is sealed to the perforated plate 13 and abuts against the filter cotton 17 to prevent dust from flowing out along the gap between the filter cotton 17 and the dust inlet pipe 15 and to prevent dust leakage.
[0038] Please see Figure 2 The dust collection box 16 is hinged to a cleaning door 20 on its front facade. The cleaning door 20 is a double-leaf door and is a sealed door to prevent dust from leaking out. At the same time, it is convenient for staff to open and clean the dust.
[0039] The implementation principle of this embodiment is as follows: During use, in the process of conveying plastic granules, the plastic granules enter the conveying cylinder 1 through the feed hopper 11. The drive motor 9 drives the auger 10 to rotate, conveying the plastic granules. The vacuum pump 18 is started to extract the air inside the dust collection box 16, thereby creating a negative pressure state in the dust inlet pipe 15. The dust in the plastic granules enters the dust inlet pipe 15 under the negative pressure suction condition. The dust is filtered by the filter cotton 17 and stays above the filter cotton 17. The dust inlet pipe 15 is connected to the conveying cylinder 1, and the conveying cylinder 1 is connected to the feed hopper 11 and the discharge port 12. The inside of the conveying cylinder 1 is in a negative pressure state, and the feed... The hopper 11 and the discharge port 12 are under negative pressure, and outside air is introduced into the hopper 11 and the discharge port 12. The air introduced into the hopper 11 and the discharge port 12 prevents dust from escaping from the hopper 11 and the discharge port 12, further preventing dust from escaping during feeding and discharging, achieving dust-free conveying, high working efficiency, and convenient and simple use. At the same time, this application adjusts the extension and retraction of the electric cylinder 4 to push the slider 7 to move along the guide rod 6, pushes the conveying cylinder 1 to rotate along the second hinge seat 22, and thus adjusts the inclination angle of the conveying cylinder 1, which facilitates material lifting and conveying, further improving the convenience of use and conveying efficiency.
[0040] 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 dust-free conveying device for plastic granules, comprising a base plate (2) and a conveying cylinder (1), characterized in that: A conveying cylinder (1) is installed above the base plate (2), and an auger (10) is rotatably connected inside the conveying cylinder (1). A drive motor (9) is fixedly installed at one end of the conveying cylinder (1). A dust inlet pipe (15) is connected through the top of the conveying cylinder (1), and a dust collection box (16) is fixedly installed on the outside of the dust inlet pipe (15). A perforated plate (13) is fixedly installed inside the dust collection box (16), and a filter cotton (17) is fixedly installed on the top surface of the perforated plate (13). An air pump (18) is fixedly installed on the top surface of the other end of the conveying cylinder (1), and the input end of the air pump (18) is connected through the air extraction pipe (19) to the dust collection box (16).
2. The dust-free conveying device for plastic granules according to claim 1, characterized in that: A side plate (21) is fixedly installed on one side wall of the conveying cylinder (1), and a support leg (3) is hinged to the bottom surface of the side plate (21) through a second hinge seat (22). The bottom surface of the support leg (3) is fixedly connected to the top surface of the base plate (2). An end plate (5) is fixedly installed on the bottom surface of the other end of the conveying cylinder (1), and a guide rod (6) is fixedly connected between the end plates (5). A slider (7) is slidably sleeved on the outside of the guide rod (6). An electric cylinder (4) is hinged to the bottom surface of the slider (7) through a first hinge seat (8), and the bottom surface of the electric cylinder (4) is fixedly connected to the top surface of the base plate (2).
3. The dust-free conveying device for plastic granules according to claim 1, characterized in that: The top surface of one end of the conveying cylinder (1) is connected to the feed hopper (11), and the bottom surface of the other end of the conveying cylinder (1) is connected to the discharge port (12).
4. The dust-free conveying device for plastic granules according to claim 1, characterized in that: Multiple sets of dust inlet pipes (15) are arranged, and the bottom opening of the dust inlet pipe (15) is sealed to the top surface of the conveying cylinder (1).
5. The dust-free conveying device for plastic granules according to claim 1, characterized in that: The dust inlet pipe (15) has an opening (14) on the top surface of the conveying cylinder (1).
6. The dust-free conveying device for plastic granules according to claim 1, characterized in that: The top opening of the dust inlet pipe (15) is located above the perforated plate (13) and the filter cotton (17).
7. The dust-free conveying device for plastic granules according to claim 1, characterized in that: The dust collection box (16) is hinged to a cleaning door (20) on its front facade.