Particle screening device

Abstract

The utility model belongs to the technical field of screening devices, and relates to a particle screening device which comprises a main body shell, a first screening assembly, a second screening assembly and a waste collecting assembly, and the first screening assembly, an installation frame, the second screening assembly and the waste collecting assembly are sequentially installed in the main body shell in the axis direction. A side door and a side pull block are arranged on the side face of the body shell, a control panel is arranged on the body shell, a feeding port is formed in the axis of the top of the body shell, a screening barrel is detachably installed on the first screening assembly, and the mounting frame abuts against the screening barrel through a screening barrel adjusting device. By arranging the first screening assembly and the second screening assembly, multi-stage screening and filtering of rubber and plastic particles or wood and plastic particles are achieved, the screening barrel adjusts the hole diameter of the screening holes through the screening barrel adjusting device, and the problem that impurities and small particles cannot be effectively separated due to the single hole diameter is effectively solved; and the screening requirements of particles with different particle sizes can be met.

Description

Technical Field

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

[0002] The rubber and plastics industry, as a comprehensive manifestation of the two major fields of rubber and plastics, is an important branch of the petrochemical industry. Although both are derived from petroleum resources, they show significant differences in manufacturing processes, physical properties and final applications. During the production process, rubber and plastic materials usually need to be crushed to form uniform particles for subsequent processing and application.

[0003] At the same time, PE wood-plastic composite materials, as a new type of environmentally friendly material that has rapidly emerged in recent years, cleverly combine plastic matrices such as polyethylene with natural plant fibers such as wood powder, rice husks, and bamboo powder. It not only inherits the durability and processability of plastics, but also gives the product a wooden appearance and certain environmentally friendly properties. The preparation process of wood-plastic particles also involves screening.

[0004] Both rubber-plastic particles and wood-plastic particles need to be screened to ensure the uniformity and purity of material quality. The existing screening technology is to pour the rubber-plastic particles or wood-plastic particles into the screening mechanism and filter out the impurities inside the rubber-plastic particles through the filter. However, since the aperture of the screen cannot be adjusted, only a single type of rubber-plastic or wood-plastic particles can be screened, and multi-stage filtration cannot be performed, resulting in impurities and fine particles passing through the filter, which may be discarded together with the impurities, causing unnecessary waste and reducing the practicality of the device. Utility Model Content

[0005] In order to solve the technical problems of the existing multi-stage particle filtration, the utility model provides a particle screening device.

[0006] The technical solution of the utility model is achieved through the following scheme: a particle screening device, including a main body shell, a first screening component, a second screening component and a waste collection component, the first screening component, a mounting frame, the second screening component and the waste collection component are installed in sequence along the axial direction in the main body shell, a side door and a side pull block are provided on the side of the main body shell, a control panel is provided on the main body shell, a feed port is opened at the axis of the top of the main body shell, a screening barrel is detachably installed on the first screening component, and the mounting frame abuts against the screening barrel through a screening barrel adjusting device.

[0007] Through the above technical scheme, by setting the first screening component and the second screening component, multi-stage screening and filtration of rubber and plastic particles or wood and plastic particles are realized, and the screening drum adjusts the sieve hole diameter through the sieve drum adjusting device, thereby avoiding the problem that impurities and small particles cannot be effectively separated due to a single aperture, and can adapt to the screening needs of particles of different particle sizes. The multi-stage filtration mechanism ensures that only truly unusable impurities and extremely small particles are collected in the waste collection component, while most of the valuable particles can be effectively retained and utilized, thereby reducing unnecessary waste and improving material utilization.

[0008] Preferably, the first screening component includes a vibration motor, a plurality of return spring columns and a mounting seat, the mounting seat is connected to the main housing via a plurality of return springs, the mounting seat is externally connected to the vibration motor, and the mounting seat is adapted to be snap-fitted to the screening barrel.

[0009] Preferably, the screen drum adjustment device includes a second motor and a rotating screen plate, the output end of the second motor is connected to the rotating screen plate, the rotating screen plate abuts against the screen drum, the screen holes of the rotating screen plate correspond one-to-one to the screen holes of the screen drum, and the second motor is located on the mounting frame.

[0010] Through the above technical scheme, the vibration motor drives the screen drum to vibrate for preliminary screening. At the same time, the reset spring column can absorb part of the vibration energy to ensure the stability and durability of the entire screening process. The relative position of the rotating screen plate and the screen hole of the screen drum is adjusted by controlling the rotation of the second motor to achieve dynamic adjustment of the screening aperture, thereby increasing the flexibility of the screening device and enabling the device to adapt to the screening needs of particles of different particle sizes.

[0011] Preferably, the second screening assembly includes a screen and a cleaning device, the screen is close to the cleaning device, the cleaning device is installed on a mounting frame, the side pull block is located on one side of the screen slope, and the cleaning device and the screen drum adjustment device are arranged opposite to each other on the mounting frame.

[0012] Preferably, the cleaning device comprises a first motor and a scraper fan, the output end of the first motor is connected to the scraper fan, the scraper fan is adapted to the screen, the scraper fan is closely attached to the screen, and the first motor is located on a mounting frame.

[0013] Preferably, the waste collection assembly includes a waste collection fan and a waste bin, the waste collection fan is located below the second screening assembly, the waste collection fan is installed in the waste area, the waste bin is drawably installed on the main body shell, and the waste bin is connected to the waste area through a waste collection channel.

[0014] Preferably, the side pull block is located on the opposite side of the side door, and the control panel is communicatively connected with the first screening assembly, the second screening assembly and the waste collection assembly.

[0015] Preferably, the mounting frame is rod-shaped as a whole, and the top of the mounting frame on which the screen drum adjustment device is mounted is triangular-shaped.

[0016] Through the above technical scheme, the combination of the screen and the cleaning device added in the second screening component ensures the continuity and efficiency of the screening process. The screen is close to the cleaning device, which effectively prevents the accumulation and blockage of particles when screening waste impurities, thereby improving the screening efficiency. The waste drawer is pull-out and installed on the main shell, which is convenient for the user to draw out and clean the waste at any time. At the same time, the design of the waste collection channel ensures that the waste can enter the waste drawer smoothly, avoiding the overflow and scattering of the waste.

[0017] In summary, the utility model has the following beneficial effects:

[0018] 1. The utility model realizes multi-stage screening and filtration of rubber and plastic particles or wood and plastic particles by setting a first screening component and a second screening component, and the screening cylinder adjusts the sieve hole diameter through the sieve cylinder adjusting device, thereby avoiding the problem that impurities and small particles cannot be effectively separated due to a single aperture, and can adapt to the screening needs of particles of different particle sizes. The multi-stage filtration mechanism ensures that only truly unusable impurities and extremely small particles are collected in the waste collection component, while most of the valuable particles can be effectively retained and utilized, thereby reducing unnecessary waste and improving the utilization rate of materials.

[0019] 2. The vibration motor drives the screen barrel to vibrate for preliminary screening. At the same time, the reset spring column can absorb part of the vibration energy to ensure the stability and durability of the entire screening process. The relative position of the rotating screen plate and the screen hole of the screen barrel is adjusted by controlling the rotation of the second motor to achieve dynamic adjustment of the screening aperture, increase the flexibility of the screening device, and enable the device to adapt to the screening needs of particles of different particle sizes.

[0020] 3. The combination of the screen and the cleaning device added in the second screening component ensures the continuity and efficiency of the screening process. The screen is close to the cleaning device, which effectively prevents the accumulation and blockage of particles when screening waste impurities, thereby improving the screening efficiency. The waste drawer is pulled out and installed on the main shell, which is convenient for users to draw out and clean the waste at any time. At the same time, the design of the waste collection channel ensures that the waste can enter the waste drawer smoothly, avoiding the overflow and scattering of the waste. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the main structure of the side door of the utility model when it is unfolded;

[0022] Figure 2 This is a schematic diagram of the three-dimensional structure of the utility model from the main viewing angle;

[0023] Figure 3 This is a schematic diagram of the structure of the utility model from a sectional perspective after the side door and the side pull block are removed;

[0024] Figure 4 It is a schematic diagram of the three-dimensional structure of the utility model from a rear perspective;

[0025] Figure 5 This is a schematic diagram of the assembly of the screen drum and the screen drum adjustment device of the utility model;

[0026] Figure 6 It is a partial cross-sectional three-dimensional structural schematic diagram of the utility model.

[0027] Explanation of the reference numerals: 1. Main shell; 2. First screening component; 21. Vibration motor; 22. Reset spring column; 23. Mounting seat; 3. Second screening component; 31. Screen; 32. Cleaning device; 321. First motor; 322. Scraper fan; 4. Screen drum; 5. Mounting frame; 6. Screen drum adjustment device; 61. Second motor; 62. Rotating screen plate; 7. Waste collecting component; 71. Waste collecting fan; 72. Waste drawer; 8. Feed inlet; 9. Side door; 10. Side pull block; 11. Control panel. DETAILED DESCRIPTION

[0028] In order to more clearly understand the above-mentioned objects, features and advantages of the present invention, the present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0029] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments of the following disclosure. The present invention is further described in detail below in conjunction with the accompanying drawings.

[0030] A particle screening device, such as Figure 1-Figure 6As shown, it includes a main shell 1, a first screening component 2, a second screening component 3 and a waste collecting component 7. The main shell 1 is cylindrical. The first screening component 2, the mounting frame 5, the second screening component 3 and the waste collecting component 7 are installed in the main shell 1 in sequence along the axial direction. The waste collecting component 7 ensures that the impurities and waste after screening can be collected in time and effectively, and also facilitates the subsequent waste treatment and recycling. A side door 9 and a side pull block 10 are provided on the side of the main shell 1. A control panel 11 is provided on the main shell 1. A feed port 8 is provided at the top axis of the main shell 1. A screening barrel 4 is detachably installed on the first screening component 2. The mounting frame 5 abuts against the screening barrel 4 through the screening barrel adjusting device 6. The bottom of the installed screening barrel 4 is tightly attached to the screening barrel adjusting device 6. The feed port 8 is funnel-shaped, facing the screening barrel 4. An observation window is provided on the side door 9, allowing The operator is allowed to observe the screening process at any time without opening the equipment, ensuring the safety and continuity of production. The side pull block 10 is located opposite the side door 9. Through the combination of the screen drum adjustment device 6 and the screen drum 4, the user can adjust the opening size of the screen holes of the screen drum 4 according to the screening requirements of different materials to achieve the best screening effect, which not only improves the screening efficiency but also increases the applicability of the equipment. Multi-stage screening is performed through the first screening component 2 and the second screening component 3. The first screening component 2 will remove materials with larger particles, and then the second screening component 3 will further refine the screening and remove medium-sized particles, thereby achieving finer grading, reducing repetitive labor in the screening process, and effectively reducing the mixing phenomenon between particles of different sizes. The control panel 11 communicates and connects the first screening component 2, the second screening component 3 and the waste collection component 7.

[0031] like Figure 1 , Figure 3 and Figure 6As shown, the first screening component 2 includes a vibration motor 21, a plurality of reset spring columns 22 and a mounting seat 23. The mounting seat 23 is connected to the main housing 1 through a plurality of reset springs. The mounting seat 23 is externally connected to the vibration motor 21. A plurality of reset spring columns 22 are arranged in an array on the outer surface of the mounting seat 23. The mounting seat 23 is adapted to be clamped with the screening barrel 4. The mounting seat 23 is cylindrical and is perfectly clamped with the screening barrel 4. A round cover is provided at the opening of the screening barrel 4. The screening barrel 4 is placed by workers and the round cover is locked with the first screening component 2 by bolts, ensuring that the screening barrel 4 is securely connected with the first screening component 2. The close connection between them prevents leakage of materials and loosening of the equipment during the screening process, and enhances the overall stability and durability of the equipment. Through the external vibration motor 21, the first screening component 2 can generate strong vibrations, thereby driving the screen barrel 4 to vibrate, effectively promoting the movement of materials in the screen barrel 4, so that the materials can more fully contact the screen holes of the screen barrel 4, and cooperate with the screen barrel adjustment device 6 to adjust the screen holes of the screen barrel 4 to improve the screening efficiency. A number of reset spring columns 22 provide stable support and buffering for the mounting seat 23, reducing the impact and collision caused by vibration.

[0032] like Figure 3 and Figure 5 As shown, the screen drum adjusting device 6 includes a second motor 61 and a rotating screen plate 62, the output end of the second motor 61 is connected to the rotating screen plate 62, the rotating screen plate 62 abuts against the screen drum 4, the screen holes of the rotating screen plate 62 correspond to the screen holes of the screen drum 4 one by one, the second motor 61 is located on the mounting frame 5, the mounting frame 5 is rod-shaped as a whole, the top of the mounting frame 5 on which the screen drum adjusting device 6 is mounted is triangular-shaped, the half of the mounting frame 5 on which the second motor 61 is mounted is triangular-shaped, and the half on which the first motor 321 is mounted is rectangular-shaped, a part of the triangular shape is facing the screen drum 4, and the purpose of setting it as a triangular body is to prevent the screened raw materials from falling on the mounting frame 5, thereby making it impossible to perform normal screening, which helps to maintain the normal operation of the screening area and reduce maintenance costs, the second motor 61 drives the rotating screen plate 62 to rotate, at this time the screen holes on the rotating screen plate 62 are cross-displaced with the screen holes on the screen drum 4, thereby adjusting the screening aperture, and when the screen holes on the two devices correspond one by one, it is the maximum aperture.

[0033] like Figure 3 and Figure 4As shown, the second screening component 3 includes a screen 31 and a cleaning device 32. The screen 31 is close to the cleaning device 32, and the cleaning device 32 is installed on the mounting frame 5. The side pull block 10 is located on one side of the slope of the screen 31. The screen 31 is in a truncated cone shape. The side pull block 10 is close to the large circle edge. When it is pulled open, the raw material particles on the slope side of the screen 31 can be exposed to the greatest extent, which is convenient for collection, so that finer impurities and waste can pass through quickly. The cleaning device 32 is installed close to the screen 31, and can clean the blockage or residue on the screen 31 in real time during the screening process to ensure the permeability of the screen 31. After the screening is completed, the user can pull open the side pull block 10 to collect the raw material particles screened on the slope of the screen 31 without opening the entire main body shell 1. At this time, the cleaning device 32 not only has the function of cleaning the screen 31, but also can sweep out the raw material particles during collection, which is convenient for the staff to collect.

[0034] like Figure 3 As shown, the cleaning device 32 and the screen drum adjusting device 6 are arranged opposite to each other on the mounting frame 5, and the cleaning device 32 includes a first motor 321 and a scraper fan 322. The output end of the first motor 321 is connected to the scraper fan 322, and the scraper fan 322 is adapted to the screen 31. The scraper fan 322 is close to the screen 31. The first motor 321 is located on the mounting frame 5. The first motor 321 and the second motor 61 are arranged opposite to each other on the mounting frame 5. The scraper fan 322 is preferably provided with soft hairs, and the impurities and waste in the screen 31 can be easily pushed out by being driven by the first motor 321.

[0035] like Figure 3 As shown, the waste collecting component 7 includes a waste collecting fan 71 and a waste drawer 72. The waste collecting fan 71 is located below the second screening component 3, the waste collecting fan 71 is installed in the waste area, the waste drawer 72 is pulled out and installed on the main shell 1, and the waste drawer 72 is connected to the waste area through a waste collecting channel. When the raw material particles pass through the screen 31 to screen the waste impurities, the waste impurities enter the waste area. At this time, they are guided to the waste collecting channel through the waste collecting fan 71 and then enter the waste drawer 72. The staff only needs to simply push or pull out the waste drawer 72 to easily collect and process the waste.

[0036] The operation adjustment of the first motor 321 , the second motor 61 and the waste collecting fan 71 is controlled by the control panel 11 .

[0037] The parts and equipment all adopt conventional models in the prior art, and the circuit connections adopt conventional connection methods in the prior art, which will not be described in detail here. The contents not described in detail in this manual belong to the prior art known to professional and technical personnel in this field.

[0038] Working principle: the staff first opens the side door 9, puts the screening barrel 4 into the first screening component 2, locks it with bolts, and further closes the side door 9. At this time, the raw material particles are placed from the discharge port, and the raw material particles fall into the screening barrel 4. The vibration motor 21 is started through the control panel 11 for vibration screening, and the first motor 321 drives the rotating screen plate 62 to adjust the aperture of the screening barrel 4. At this time, the waste impurities and some finer raw material particles fall onto the second screening component 3, and further waste impurities directly enter the waste area. The first motor 321 is started to drive the scraper fan 322 to clean the internal holes of the screen 31 to ensure dredging. The waste impurities are sent to the waste drawer 72 by the waste collection fan 71 for collection, and the staff observes through the observation window of the side door 9;

[0039] When the screening is completed, the device is stopped through the control panel 11. First, the staff pulls open the side pull block 10 to collect the raw particles in the area of ​​the second screening component 3. At this time, the first motor 321 can be started to slowly drive the scraper 322 for auxiliary collection. The side door 9 is further opened, the fixing bolts of the screening barrel 4 are removed, and the screening barrel 4 is lifted out to complete the collection of raw material particles in the area of ​​the first screening component 2. Finally, the waste drawer 72 is pulled out for processing.

[0040] The above description is only a preferred embodiment of the present invention and does not constitute any other form of limitation to the present invention. Any technician familiar with the profession may use the technical contents disclosed above to change or modify them into equivalent embodiments with equivalent changes for application in other fields. However, any simple modification or equivalent change made to the above embodiments based on the technical essence of the present invention without departing from the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. A particle screening device, characterized in that: The invention comprises a main body shell (1), a first screening assembly (2), a second screening assembly (3) and a waste collection assembly (7); the first screening assembly (2), a mounting frame (5), a second screening assembly (3) and a waste collection assembly (7) are sequentially mounted in the main body shell (1) along the axial direction; a side door (9) and a side pull block (10) are provided on the side of the main body shell (1); a control panel (11) is provided on the main body shell (1); a feed port (8) is provided at the top axis of the main body shell (1); a screening barrel (4) is detachably mounted on the first screening assembly (2); and the mounting frame (5) abuts against the screening barrel (4) via a screening barrel adjustment device (6).

2. A particle screening device according to claim 1, characterized in that: The first screening component (2) comprises a vibration motor (21), a plurality of return spring columns (22) and a mounting seat (23); the mounting seat (23) is connected to the main housing (1) via a plurality of return springs; the mounting seat (23) is externally connected to the vibration motor (21); and the mounting seat (23) is adapted to be snap-fitted to the screening barrel (4).

3. A particle screening device according to claim 1, characterized in that: The screen drum adjustment device (6) comprises a second motor (61) and a rotating screen plate (62); the output end of the second motor (61) is connected to the rotating screen plate (62); the rotating screen plate (62) abuts against the screen drum (4); the screen holes of the rotating screen plate (62) correspond one to one with the screen holes of the screen drum (4); and the second motor (61) is located on the mounting frame (5).

4. A particle screening device according to claim 1, characterized in that: The second screening assembly (3) comprises a screen (31) and a cleaning device (32), the screen (31) being in close contact with the cleaning device (32), the cleaning device (32) being mounted on a mounting frame (5), the side pull block (10) being located on a sloped side of the screen (31), and the cleaning device (32) and the screen drum adjusting device (6) being arranged opposite to each other on the mounting frame (5).

5. A particle screening device according to claim 4, characterized in that: The cleaning device (32) comprises a first motor (321) and a scraper fan (322); the output end of the first motor (321) is connected to the scraper fan (322); the scraper fan (322) is adapted to the screen (31); the scraper fan (322) is in close contact with the screen (31); and the first motor (321) is located on a mounting frame (5).

6. A particle screening device according to claim 1, characterized in that: The waste collection component (7) comprises a waste collection fan (71) and a waste drawer (72), wherein the waste collection fan (71) is located below the second screening component (3), the waste collection fan (71) is installed in the waste area, and the waste drawer (72) is drawably installed on the main body shell (1), and the waste drawer (72) is connected to the waste area via a waste collection channel.

7. A particle screening device according to claim 1, characterized in that: The side pull block (10) is located on the opposite side of the side door (9), and the control panel (11) is communicatively connected to the first screening component (2), the second screening component (3) and the waste collection component (7).

8. A particle screening device according to claim 1, characterized in that: The mounting frame (5) is rod-shaped as a whole, and the top of the mounting frame (5) on which the screen drum adjustment device (6) is mounted is triangular-shaped.

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