Classification screening system for plastic particle production

Abstract

The utility model discloses a classification screening system for plastic particle production, which comprises at least two classification screening devices and a feeding mechanism, the at least two classification screening devices are arranged side by side, and each classification screening device is provided with a feed hopper and a screening mechanism; the feeding mechanism is arranged above the at least two grading screening devices and comprises a feeding barrel, a discharging barrel and a sliding assembly, the feeding barrel and the discharging barrel are connected through a connecting pipe, the sliding assembly is installed on the wall or the frame and extends in the horizontal direction, the discharging barrel is connected to the sliding assembly, and the discharging barrel is connected to the sliding assembly. The sliding assembly reciprocates in the horizontal direction to drive the discharging barrel to move, and the discharging barrel moves in the horizontal direction to be in butt joint with different feeding hoppers. According to the screening system, the screening system is divided into the multiple independent screening units, each unit is responsible for treating particles of one batch, the multiple screening units are connected in parallel to form the whole screening system, the rapid switching feeding device is matched, the feeding efficiency is improved, and time and labor are saved.

Description

Technical Field

[0001] This utility model relates to the technical field of plastic granule screening, and in particular to a grading and screening system for plastic granule production. Background Technology

[0002] Grading and screening equipment for plastic granule production is a device used to screen and grade plastic granules. This equipment usually consists of multiple screens, each with a different aperture, used to screen plastic granules of different sizes. Grading and screening is a very important part of the production process of plastic granules. Plastic granules enter the grading and screening equipment through the feed inlet, and after being screened and graded by the screens, plastic granules of different sizes are collected in different collectors.

[0003] Current screening methods typically involve manually pouring plastic granules into the feed inlet of a grading and screening equipment, and then collecting them from different outlets to achieve grading and screening. However, existing grading and screening processes are only equipped with one screening device, which cannot process multiple batches of granules simultaneously, thus failing to improve the screening throughput and efficiency. Alternatively, some factories may have multiple screening devices, but these still require manual feeding of each batch, which is time-consuming, labor-intensive, and inefficient. Utility Model Content

[0004] This utility model aims to at least partially solve one of the problems in related technologies. Therefore, one objective of this utility model is to provide a grading and screening system for plastic granule production, which divides the screening system into multiple independent screening units, each unit being responsible for processing one batch of granules. Multiple screening units are connected in parallel to form a complete screening system, and are equipped with a fast-switching feeding device to improve feeding efficiency and save time and labor.

[0005] A grading and screening system for plastic pellet production, the grading and screening system for plastic pellet production comprising:

[0006] At least two grading and screening devices are provided, and the at least two grading and screening devices are arranged side by side. Each grading and screening device is provided with a feeding hopper and a screening mechanism.

[0007] A feeding mechanism is provided above at least two of the grading and screening devices. The feeding mechanism includes a feeding bucket, a discharge cylinder, and a sliding component. The feeding bucket and the discharge cylinder are connected by a connecting pipe. The sliding component is installed on a wall or frame and extends horizontally. The discharge cylinder is connected to the sliding component. The sliding component reciprocates horizontally to drive the discharge cylinder to move. The discharge cylinder moves horizontally to connect with different feeding hoppers.

[0008] Furthermore, the sliding assembly includes a slide rail and a connecting seat. The slide rail is installed horizontally on a wall or frame, and one end of the connecting seat is slidably connected to the slide rail, while the other end is connected to the discharge cylinder.

[0009] Furthermore, the sliding assembly also includes a driving member, which drives the connecting seat to reciprocate along the slide rail.

[0010] Furthermore, the feeding mechanism also includes a connecting pipe, one end of which is connected to the outlet of the feeding barrel and the other end of which is connected to the inlet of the discharging barrel.

[0011] Furthermore, the connecting pipe is made of polytetrafluoroethylene or rubber.

[0012] Furthermore, the grading and screening system for plastic granule production also includes a dust box and a dust removal device. At least two of the grading and screening devices are installed inside the dust box. The dust removal device is connected to one side of the dust box and communicates with the inside of the dust box. The top of the dust box is provided with multiple openings, and one feed hopper corresponds to one opening.

[0013] Furthermore, the dust removal device includes a dust collector and a dust collection box, wherein the air inlet of the dust collector is connected to the dust box and the air outlet is connected to the dust collection box.

[0014] Furthermore, the dustproof box has multiple observation windows on one side, with each observation window corresponding to one of the grading and screening devices.

[0015] Furthermore, the dustproof box has multiple sealed doors on the side opposite to the observation window, with each sealed door corresponding to one of the grading and screening devices.

[0016] Furthermore, a dust concentration monitor is installed inside the dustproof box.

[0017] The technical solutions provided in this application have the following advantages compared with the prior art:

[0018] This application utilizes at least two grading and screening devices to divide the screening system into multiple independent screening units. Each grading and screening device is responsible for one screening unit, and each unit processes one batch of particles. Multiple screening devices can operate simultaneously to achieve synchronous screening and improve workload. Each screening unit is equipped with an independent vibration motor and control system, allowing for individual adjustment of vibration frequency and amplitude as needed. Furthermore, a standardized design ensures consistent structure and performance across each screening unit, facilitating production and maintenance.

[0019] At least two grading and screening devices are equipped with a feeding mechanism above them. The feeding mechanism includes a feeding hopper, a discharge cylinder, and a sliding component. The sliding component can cover multiple screening devices, thereby driving the discharge cylinder to move horizontally. This horizontal displacement of the discharge cylinder allows it to connect with the feed hoppers of different screening devices, enabling the feeding hopper to switch between different screening devices. Through manual or mechanical switching, plastic particles are evenly distributed to each screening unit, preventing overload of any unit and achieving efficient workload distribution in the screening system. This improves feeding efficiency and saves time and labor. Attached Figure Description

[0020] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with the present invention and, together with the description, serve to explain the principles of the present invention.

[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of a structural embodiment of the grading and screening system for plastic pellet production according to this application;

[0023] Figure 2 This is a schematic diagram of another connection method between the feeding mechanism and the grading and screening equipment in one embodiment of the grading and screening system for plastic granule production according to this application;

[0024] Figure 3 This is a front view of another embodiment of the grading and screening system for plastic pellet production according to this application;

[0025] Figure 4 This is a rear view of another embodiment of the grading and screening system for plastic pellet production according to this application.

[0026] Figure label:

[0027] 1. Grading and screening system for plastic granule production; 10. Grading and screening equipment; 11. Feed hopper; 13. Screening mechanism; 30. Feeding mechanism; 31. Feeding bucket; 33. Discharge cylinder; 35. Sliding assembly; 351. Slide rail; 353. Connecting seat; 37. Connecting pipe; 50. Dustproof box; 51. Observation window; 53. Sealed door; 70. Dust removal device; 71. Dust collector; 73. Dust collection box. Detailed Implementation

[0028] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0029] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention 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. Therefore, they should not be construed as limitations on this invention.

[0030] like Figure 1 - Figure 4 As shown, the grading and screening system 1 for plastic pellet production provided in this application includes:

[0031] At least two grading and screening devices 10 are arranged side by side, and each grading and screening device 10 is equipped with a feed hopper 11 and a screening mechanism 13;

[0032] The feeding mechanism 30 is located above at least two grading and screening devices 10. The feeding mechanism 30 includes a feeding bucket 31, a discharge cylinder 33, and a sliding component 35. The feeding bucket 31 and the discharge cylinder 33 are connected by a connecting pipe 37. The sliding component 35 is installed on a wall or frame and extends horizontally. The discharge cylinder 33 is connected to the sliding component 35. The sliding component 35 moves back and forth horizontally to drive the discharge cylinder 33 to move. The discharge cylinder 33 moves horizontally to connect with different feed hoppers 11.

[0033] First, the system is equipped with at least two grading and screening devices 10. These grading and screening devices 10 are arranged side by side to ensure efficient use of space and ease of operation. Each grading and screening device 10 is equipped with a feed hopper 11 and a screening mechanism 13. The feed hopper 11 is used to receive the plastic granules to be screened, while the screening mechanism 13 is responsible for classifying and screening the granules to ensure that the granules meet the required specifications and quality standards.

[0034] Secondly, the system also includes a feeding mechanism 30. This feeding mechanism 30 is located above at least two grading and screening devices 10 to facilitate the even distribution of plastic granules into each screening device. The feeding mechanism 30 mainly includes a feeding hopper 31, a discharge cylinder 33, and a sliding assembly 35. The feeding hopper 31 stores the plastic granules to be screened, while the discharge cylinder 33 is responsible for discharging the granules from the feeding hopper 31 and conveying them to the corresponding feed hopper 11. The sliding assembly 35 is mounted on a wall or frame and extends horizontally to facilitate the movement of the discharge cylinder 33. Through the reciprocating movement of the sliding assembly 35, the discharge cylinder 33 can move horizontally, thereby docking with different feed hoppers 11. This design allows the discharge cylinder 33 to flexibly switch to different screening devices, thus achieving efficient and uniform feeding.

[0035] The grading and screening system proposed in this application divides the entire screening system into multiple independent screening units by setting up at least two grading and screening devices 10. Each grading and screening device 10 is responsible for one screening unit, and each unit processes one batch of plastic granules. This design allows multiple screening devices to operate simultaneously, achieving synchronous screening and thus significantly improving work efficiency. Each screening unit is equipped with an independent vibration motor and control system, which can individually adjust the vibration frequency and amplitude according to specific needs to achieve the best screening effect. In addition, the standardized design ensures that the structure and performance of each screening unit are consistent, facilitating production and maintenance.

[0036] By installing a feeding mechanism 30 above at least two grading and screening devices 10, the system of this application can flexibly feed materials to different screening devices. The sliding component 35 of the feeding mechanism 30 can cover multiple screening devices, thereby driving the discharge cylinder 33 to move horizontally, achieving horizontal displacement of the discharge cylinder 33. In this way, the discharge cylinder 33 can dock with the feed hopper 11 of different screening devices, realizing the switching of the feeding barrel 31 for different screening devices. Through manual or mechanical switching, the system can evenly distribute plastic granules to each screening unit, avoiding overload of any one unit, thereby achieving efficient allocation of the workload of the screening system. This design not only improves the feeding efficiency but also saves time and labor, further improving the efficiency and quality of the entire production process.

[0037] In practical applications, the sliding component 35 of the feeding mechanism 30 consists of a precision guide rail and roller system, ensuring the stability and accuracy of the discharge cylinder 33 during movement. The guide rail system is designed with dustproof and lubrication devices to reduce wear and maintenance costs while ensuring long-term operational reliability. The roller system uses wear-resistant materials to withstand heavy loads during continuous operation, ensuring smooth movement of the discharge cylinder 33. Furthermore, the entire feeding mechanism 30 is equipped with sensors and a control unit, capable of monitoring and adjusting the position and speed of the sliding component 35 in real time to ensure accurate feeding. Through the comprehensive application of these technologies, this grading and screening system not only improves production efficiency but also reduces operational complexity, making the entire production process more intelligent and automated.

[0038] In practical applications, this grading and screening system also features automatic control. The control system, through sensors and program logic, can monitor the flow rate and quality of plastic granules in real time and automatically adjust the operating status of the vibrating motor to adapt to the screening requirements of different batches of plastic granules. Furthermore, the system is equipped with an emergency stop button and safety protection devices to ensure a rapid response in case of abnormalities and protect the safety of operators.

[0039] To further enhance system stability and reliability, this system is also designed with fault diagnosis and alarm mechanisms. When the system detects equipment malfunction or operational error, it will automatically issue an alarm and display fault information, guiding operators to quickly and effectively troubleshoot the problem. Simultaneously, the system supports remote monitoring and maintenance functions. Through network connectivity, technicians can remotely diagnose problems and provide technical support, significantly reducing maintenance costs and downtime.

[0040] Furthermore, the sliding assembly 35 includes a slide rail 351 and a connecting seat 353. The slide rail 351 is installed horizontally on the wall or frame, and one end of the connecting seat 353 is slidably connected to the slide rail 351, while the other end is connected to the discharge cylinder 33.

[0041] The sliding assembly 35 mainly consists of two parts: a slide rail 351 and a connecting seat 353. The slide rail 351 is installed horizontally and can be mounted on a wall or a specific frame structure. One end of the connecting seat 353 is designed to slide smoothly onto the slide rail 351, allowing for smooth movement along the slide rail. The other end of the connecting seat 353 is connected to the discharge cylinder 33. Thus, when the connecting seat 353 slides on the slide rail 351, the discharge cylinder 33 also moves accordingly, achieving smooth material output. This design of the sliding assembly 35 makes the entire discharge process more flexible and efficient, while also ensuring the stability and reliability of the equipment.

[0042] The slide rail 351 is typically made of high-strength alloy material with a hardened surface to withstand continuous friction and pressure. The connecting seat 353 is made of wear-resistant engineering plastic or metal material to ensure adaptability and stability in different working environments. Furthermore, the maintenance and replacement of the sliding assembly 35 are designed to be very simple, reducing production downtime and maintenance costs. Through these designs, the sliding assembly 35 not only improves the overall performance of the grading and screening system but also extends the service life of the equipment, bringing greater economic benefits to the user.

[0043] Furthermore, the sliding assembly 35 also includes a driving member that drives the connecting seat 353 to reciprocate along the slide rail 351.

[0044] The core component of the sliding assembly 35 includes drive units that drive the connecting seat 353, enabling it to reciprocate along the slide rail 351. The drive units can be various types of power devices, such as electric motors, cylinders, hydraulic cylinders, or other types of power devices. The choice of drive unit depends on the specific requirements of the grading and screening system and the characteristics of the working environment. For example, electric motor drives offer advantages such as precise control and fast response, making them particularly suitable for applications requiring frequent starts and stops; while cylinders and hydraulic cylinders excel in providing greater thrust and bearing heavy loads, making them more suitable for situations with large material output. To ensure optimal cooperation between the drive units, slide rail 351, and connecting seat 353, and to reduce wear and failure rates, the installation position and method of the drive units are carefully designed. Furthermore, the drive units are typically equipped with corresponding sensors and control systems to achieve precise control of the sliding speed and position, thereby ensuring the accuracy and repeatability of the grading and screening process. Through these carefully designed measures, the performance of the sliding assembly 35 is further improved, providing a more stable and efficient operating guarantee for the grading and screening system.

[0045] Furthermore, the feeding mechanism 30 also includes a connecting pipe 37, one end of which is connected to the outlet of the feeding barrel 31, and the other end is connected to the inlet of the discharge barrel 33.

[0046] One end of the connecting pipe 37 is connected to the outlet of the feeding hopper 31, ensuring that the material can flow smoothly out of the feeding hopper 31. The other end of the connecting pipe 37 is connected to the inlet of the discharge cylinder 33, so that the material can flow seamlessly from the connecting pipe 37 into the discharge cylinder 33. This design not only ensures the continuity and stability of material transmission, but also improves the efficiency and reliability of the entire feeding process. Through this ingenious connection method, the feeding mechanism 30 can more flexibly adapt to different production needs, ensuring the smooth flow of materials in the production process.

[0047] To further optimize material transfer efficiency, spiral blades are designed inside the connecting pipe 37. These spiral blades effectively propel the material along the connecting pipe 37, reducing stagnation and blockage during transfer. Simultaneously, the material selection and wall thickness design of the connecting pipe 37 have been carefully considered to ensure sufficient strength and durability while withstanding material pressure and wear. Furthermore, the length and bending angle of the connecting pipe 37 have been optimized to adapt to the spatial layout of production lines of different sizes, ensuring that the feeding mechanism 30 can be flexibly installed in various production environments. Through these comprehensive designs, the feeding mechanism 30 not only improves material transfer efficiency but also enhances the stability and reliability of the entire grading and screening system.

[0048] Furthermore, the connecting pipe 37 is made of polytetrafluoroethylene or rubber.

[0049] The connecting tube 37 can be made of either polytetrafluoroethylene (PTFE) or rubber. PTFE has excellent chemical corrosion resistance and high-temperature resistance, maintaining stability in various harsh environments; while rubber has good flexibility and elasticity, facilitating the rotation of the connecting tube 37 to different angles, making it convenient to connect different discharge pipes and suction mechanisms, and adapting to various complex installation environments. Both materials have their advantages, and the choice can be made based on actual application needs and conditions.

[0050] Furthermore, the grading and screening system 1 for plastic granule production also includes a dust box 50 and a dust removal device 70. At least two grading and screening devices 10 are installed inside the dust box 50. The dust removal device 70 is connected to one side of the dust box 50 and communicates with the inside of the dust box 50. The top of the dust box 50 is provided with multiple openings, with one feed hopper 11 corresponding to one opening.

[0051] The grading and screening system used in the plastic granule production process includes not only a dustproof box 50 and a dust collection device 70, but also ensures that at least two grading and screening devices 10 are installed inside the dustproof box 50. These grading and screening devices 10 can efficiently classify and screen the plastic granules to ensure product quality. Meanwhile, the dust collection device 70 is designed to be connected to one side of the dustproof box 50 and communicate with the interior of the dustproof box 50 to ensure that dust generated during the grading and screening process can be effectively collected and treated. To further improve the system's sealing and dustproof effect, the top of the dustproof box 50 is specially designed with multiple openings, each corresponding to a feed hopper 11. This design not only facilitates material input but also ensures that the entire grading and screening process takes place in a relatively closed and clean environment, thereby improving production efficiency and product quality.

[0052] Furthermore, the dust removal device 70 includes a dust collector 71 and a dust collection box 73. The air inlet of the dust collector 71 is connected to the dustproof box 50, and the air outlet is connected to the dust collection box 73.

[0053] The dust collection device 70 mainly consists of two core parts: a dust collector 71 and a dust collection box 73. The inlet of the dust collector 71 is connected to the dust box 50 via a pipe or other connection method, ensuring that dust in the air can smoothly enter the dust collector 71 for processing. The air processed by the dust collector 71 is then connected to the dust collection box 73 through its outlet, where the filtered clean air is discharged, and the collected dust is stored in the dust collection box 73 for subsequent cleaning and processing. The entire dust collection device 70 is designed to effectively remove dust particles from the air, ensuring air quality and a clean working environment. The dust collector 71 can be divided into various types, including but not limited to bag filters 71, electrostatic precipitators 71, cyclone dust collectors 71, wet scrubbers 71, and filter dust collectors 71. Each type of dust collector 71 has its specific working principle and applicable applications. Baghouse dust collector 71 uses filter bags to filter dust in the air; electrostatic precipitator 71 captures charged dust particles through the action of an electric field; cyclone dust collector 71 uses centrifugal force to separate dust; wet dust collector 71 captures and removes dust through water or other liquids; filter dust collector 71 uses filter material to trap dust particles.

[0054] Furthermore, a plurality of observation windows 51 are provided on one side of the dust box 50, with each observation window 51 corresponding to a grading and screening device 10.

[0055] Multiple observation windows 51 are provided on one side of the dustproof box 50, each corresponding to a grading and screening device 10. These observation windows 51 not only facilitate real-time monitoring of the operating status of the grading and screening device 10 by operators, but also ensure effective observation and adjustment of the equipment during production. Through these observation windows 51, operators can clearly see the working condition of the grading and screening device 10, thereby promptly identifying and resolving potential problems and ensuring the smooth operation of the entire production process. In addition, the design of the observation windows 51 also takes into account the special characteristics of the internal environment of the dustproof box 50, ensuring clear observation even in harsh environments, while maintaining the airtightness and stability of the dustproof box 50.

[0056] Furthermore, multiple sealed doors 53 are provided on the side of the dust box 50 opposite to the observation window 51, with each sealed door 53 corresponding to a grading and screening device 10.

[0057] On the other side of the dustproof box 50, we can see multiple sealed doors 53 arranged in sequence. Each sealed door 53 corresponds to one grading and screening device 10. The design of these sealed doors 53 ensures the stability of the internal environment of the dustproof box 50, prevents the intrusion of external dust, and also facilitates the maintenance and repair of the grading and screening device 10 by operators. Each sealed door 53 has undergone precise design and rigorous testing to ensure its good sealing performance and prevent air leakage due to frequent opening and closing. This design not only improves the working efficiency of the grading and screening device 10 but also greatly extends the service life of the equipment.

[0058] Furthermore, a dust concentration monitor is installed inside the dust box 50.

[0059] Inside the dust enclosure 50, an advanced dust concentration monitor is specially installed. This monitor can detect the dust content in the air inside the enclosure in real time and transmit the data to the control system via precise sensors, ensuring that the dust concentration inside the enclosure is always kept within a safe range. This efficient monitoring equipment effectively prevents dust from contaminating the equipment or items inside the enclosure, ensuring their normal operation and service life.

[0060] It is understood that the above embodiments only illustrate preferred embodiments of the present utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the present utility model patent. It should be noted that for those skilled in the art, the above technical features can be freely combined, and several modifications and improvements can be made without departing from the concept of the present utility model, all of which fall within the protection scope of the present utility model. Therefore, all equivalent transformations and modifications made within the scope of the claims of the present utility model should fall within the coverage of the claims of the present utility model.

Claims

1. A grading and screening system for plastic granule production, characterized in that, include: At least two grading and screening devices are provided, and the at least two grading and screening devices are arranged side by side. Each grading and screening device is provided with a feeding hopper and a screening mechanism. A feeding mechanism is provided above at least two of the grading and screening devices. The feeding mechanism includes a feeding bucket, a discharge cylinder, and a sliding component. The feeding bucket and the discharge cylinder are connected by a connecting pipe. The sliding component is installed on a wall or frame and extends horizontally. The discharge cylinder is connected to the sliding component. The sliding component reciprocates horizontally to drive the discharge cylinder to move. The discharge cylinder moves horizontally to connect with different feeding hoppers.

2. The grading and screening system for plastic granule production according to claim 1, characterized in that, The sliding assembly includes a slide rail and a connecting seat. The slide rail is installed horizontally on a wall or frame. One end of the connecting seat is slidably connected to the slide rail, and the other end is connected to the discharge cylinder.

3. The grading and screening system for plastic granule production according to claim 2, characterized in that, The sliding assembly further includes a driving member, which drives the connecting seat to reciprocate along the slide rail.

4. The grading and screening system for plastic granule production according to claim 3, characterized in that, The feeding mechanism also includes a connecting pipe, one end of which is connected to the outlet of the feeding barrel and the other end of which is connected to the inlet of the discharging barrel.

5. A grading and screening system for plastic granule production according to claim 4, characterized in that, The connecting pipe is made of polytetrafluoroethylene or rubber.

6. A grading and screening system for plastic granule production according to any one of claims 1 to 5, characterized in that, The grading and screening system for plastic granule production also includes a dustproof box and a dust removal device. At least two of the grading and screening devices are installed inside the dustproof box. The dust removal device is connected to one side of the dustproof box and communicates with the inside of the dustproof box. The top of the dustproof box is provided with multiple openings, and one feed hopper corresponds to one opening.

7. A grading and screening system for plastic granule production according to claim 6, characterized in that, The dust removal device includes a dust collector and a dust collection box. The air inlet of the dust collector is connected to the dust box, and the air outlet is connected to the dust collection box.

8. A grading and screening system for plastic granule production according to claim 6, characterized in that, The dustproof box has multiple observation windows on one side, and each observation window corresponds to one of the grading and screening devices.

9. A grading and screening system for plastic granule production according to claim 8, characterized in that, The dustproof box has multiple sealed doors on the side opposite to the observation window, with each sealed door corresponding to one of the grading and screening devices.

10. A grading and screening system for plastic granule production according to claim 6, characterized in that, The dustproof box is equipped with a dust concentration monitor.

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