Plastic particle screening device

Abstract

The utility model relates to a screening device, and provides the plastic particle screening device which comprises an equipment shell, a layered support, a connecting frame and the like. A top cover is fixedly arranged on the upper portion of the interior of the equipment shell, a feeding port is formed in the right portion of the top cover, layered supports are arranged on the front side and the rear side of the top cover in a bilateral symmetry mode, and a plurality of connecting frames are arranged on each layered support in an up-and-down mode. The multiple screens are arranged in a layered mode, each screen is independently controlled through the multiple vibration modules arranged on the screen, vibration between the screens is not conducted mutually, the defect that in a traditional unified control mode, the single vibration frequency cannot meet diversified screening requirements is effectively overcome, the screening efficiency and accuracy are greatly improved, and the screening quality is improved. And meanwhile, the problems of material blockage, screen mesh damage and the like caused by mutual influence of vibration between screen meshes are reduced, the equipment energy consumption and the maintenance cost are reduced, and the overall performance and reliability of the plastic particle screening device are remarkably improved.

Description

Technical Field

[0001] This utility model relates to a screening device, and more particularly to a plastic granule screening device. Background Technology

[0002] In the production and processing of plastic granules, the screening process is crucial. It effectively removes impurities and classifies plastic granules of different sizes, thereby improving product quality and subsequent processing efficiency. With the rapid development of the plastics industry, the requirements for the precision and quality of plastic granules are increasing, and traditional screening equipment can no longer meet the diverse production needs.

[0003] Most existing plastic pellet screening devices adopt a unified control method, which makes multiple screens operate at a single vibration frequency. However, plastic pellets of different sizes and characteristics have different movement states and screening difficulties on the screens. The unified control of a single vibration frequency cannot be adjusted according to the specific state of the material on each screen. This will lead to incomplete screening of material on some screens, resulting in clogging or low screening efficiency. At the same time, it will also increase energy consumption and equipment wear, affecting the performance and service life of the entire screening device, and making it difficult to meet the needs of modern plastic pellet production for efficient and precise screening. Utility Model Content

[0004] To address the shortcomings mentioned in the background art, the purpose of this utility model is to provide a plastic granule screening device.

[0005] The technical implementation scheme of this utility model is as follows: A plastic granule screening device includes a housing, layered supports, connecting frames, springs, a top cover, a frame, a support platform, a screen, a mounting frame, a vibration module, a guide plate, and a material frame. The top cover is fixedly installed on the upper part of the housing, with a feed inlet on the right side. Layered supports are symmetrically arranged on both the front and rear sides. Multiple connecting frames are arranged vertically on each layered support. Connecting frames at the same height are connected to the frame by springs. The other end of the spring is detachably connected to the corresponding connecting frame to provide elastic support to the frame in the horizontal direction. A screen is installed at the bottom of each frame, with the screen surface being higher on the right and lower on the left. Mounting frames are installed on both the front and rear sides of the lower part of the frame, each mounting frame having at least one vibration module. Support platforms, with the same number as the frames, are arranged vertically on the left side of the housing for placing containers to receive materials. A material frame is slidably installed on the lower left side of the housing. A guide plate is installed at the bottom of the lowest frame layer, with the left end of the guide plate extending into the space above the material frame.

[0006] As a further preferred embodiment, it also includes a distributor and a transmission component. The transmission component is provided at the feed inlet of the top cover, and the distributor is connected to the transmission component. The discharge port at the lower end of the distributor extends into the feed inlet, and the transmission component drives the distributor to move back and forth.

[0007] As a further preferred option, it also includes vision modules, with vision modules provided on each frame, and the vision lenses of the vision modules all facing the screen side on the same frame.

[0008] As a further preferred option, flexible side curtains are also included, with flexible side curtains evenly distributed on the front, back, and left sides of the bottom of the frame.

[0009] As a further preferred embodiment, it also includes a frame and a sliding cover. The top cover has a frame on both the front and rear sides of the right side. The two frames are respectively arranged around the front and rear ends of the transmission component. The frame is equipped with a sliding cover, and the other end of the sliding cover is connected to the distributor.

[0010] The beneficial effects of this utility model are as follows: By setting multiple screens in layers, each screen is independently controlled by multiple vibration modules installed on it, and the vibration between the screens is not transmitted to each other. This effectively avoids the drawback of the traditional unified control mode where a single vibration frequency cannot meet the diverse screening needs, greatly improving screening efficiency and accuracy. At the same time, it reduces problems such as material blockage and screen damage caused by the mutual influence of vibration between screens, reduces equipment energy consumption and maintenance costs, and significantly improves the overall performance and reliability of the plastic granule screening device.

[0011] This utility model features a flexible side curtain at the bottom of the frame to cover the gaps between the frames. Together with the equipment housing, it forms a relatively enclosed space, preventing the leakage of dust, debris, and other impurities generated during processing. This avoids environmental pollution and harm to the health of operators, reduces the impact of external interference factors on the processing process, and ensures the stability of the processing environment.

[0012] This invention features a distributor that can move back and forth at the feed inlet, which ensures that the plastic granules entering the feed inlet are more evenly distributed on the screen during feeding, preventing the material from accumulating in a certain area and improving screening efficiency and effect. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0014] Figure 2 This is a three-dimensional structural diagram of the connecting frame, screen, and vibration module of this utility model.

[0015] Figure 3 This is a three-dimensional structural diagram of the frame, screen, and flexible side curtain of this utility model.

[0016] Figure 4 This is a three-dimensional structural diagram of the frame, guide plate, and vision module of this utility model.

[0017] Figure 5 This is a three-dimensional structural diagram of the top cover, distributor, and transmission components of this utility model.

[0018] Wherein: 1: Equipment housing, 2: Layered support, 21: Connecting frame, 22: Spring, 3: Top cover, 4: Frame, 41: Support platform, 42: Screen, 43: Mounting frame, 44: Vibration module, 5: Guide plate, 6: Material frame, 7: Flexible side curtain, 8: Vision module, 9: Distributor, 91: Transmission component, 10: Frame body, 11: Sliding cover. Detailed Implementation

[0019] The technical solution will be further described below with reference to specific embodiments. It should be noted that the terms "up," "down," "left," and "right" used in this document refer only to the position of the structure shown in the corresponding drawings. The serial numbers assigned to components in this document, such as "first," "second," etc., are only used to distinguish the described objects and have no sequential or technical meaning. Unless otherwise specified, terms such as "connection" and "linkage" in this application include both direct and indirect connections (linkages).

[0020] Example 1

[0021] A plastic pellet screening device, such as Figure 1-5 As shown, the device includes a housing 1, layered supports 2, connecting frames 21, springs 22, a top cover 3, a frame 4, a support platform 41, a screen 42, a mounting frame 43, a vibration module 44, a guide plate 5, and a material frame 6. Inside the housing 1, the top cover 3 is fixedly mounted on the upper part of the housing 1. A feed inlet is located on the right side of the top cover 3 to facilitate the entry of plastic granules into the device for screening. Layered supports 2 are symmetrically arranged on both the front and rear sides of the housing 1, providing a stable support structure for the entire screening device. Multiple connecting frames 21 are arranged vertically on each layered support 2 at the same height. The frames 4 are connected to each other by springs 22. One end of the spring 22 is detachably connected to the frame 4, and the other end is detachably connected to the corresponding side of the connecting frame 21 to provide elastic support for the frame 4 in the horizontal direction. This elastic support structure enables the frame 4 to have a certain buffering and adaptive adjustment capability during vibration. When the frame 4 is subjected to vibration by the vibration module 44, the spring 22 can absorb some vibration energy, reduce the transmission and interference of vibration, and at the same time ensure the stability of the frame 4 in the horizontal direction, so as to avoid the frame 4 from shifting or being damaged due to excessive vibration.

[0022] Each frame 4 has a screen 42 at its bottom, with the screen surface sloping from right to left. This design allows materials to slide naturally to the left on the screen 42, facilitating screening and discharge. Mounting frames 43 are located on both the front and rear sides of the lower part of the frame 4, each mounting frame 43 equipped with at least one vibration module 44. The multiple frames 4 are arranged in layers, and apart from being connected to the spring 22, they do not contact other components. Each frame 4 is vibrated by multiple independent vibration modules 44. Compared to single-frequency vibration, these independently controlled vibration modules 44 can precisely adjust the vibration frequency and amplitude of each frame 4 according to the characteristics, accumulation state, and screening requirements of the materials on different frames 4. For example, for materials with larger particle sizes and thicker accumulation, the vibration frequency and amplitude can be increased to accelerate screening; for materials with smaller particle sizes that are prone to clogging the screen, the vibration frequency and amplitude can be appropriately reduced to prevent clogging due to excessive vibration. This precise vibration control greatly improves screening efficiency and accuracy.

[0023] The left side of the equipment housing 1 is equipped with support platforms 41, which are the same number as the frame 4, arranged in upper and lower layers. The support platforms 41 are used to place containers for receiving materials, which facilitates the collection of plastic granules of different sizes after screening. The lower left side of the equipment housing 1 is equipped with a sliding material frame 6. The bottom of the lowest frame 4 is equipped with a guide plate 5. The left end of the guide plate 5 extends into the space above the material frame 6. After multiple screenings, the finest materials will fall onto the guide plate 5 through the lowest screen 42 and then slide into the material frame 6 along the guide plate 5. This realizes the classification, collection and centralized processing of materials of different particle sizes, and improves the practicality and convenience of the entire screening device.

[0024] When this plastic granule screening device is working, the plastic granules enter through the feed inlet of the top cover 3 and fall onto the screen 42 of the uppermost frame 4. Since the screen 42 is higher on the right and lower on the left, the material naturally slides to the left. Each frame 4 is provided with vibration by an independent vibration module 44. The vibration frequency and amplitude are precisely adjusted according to the characteristics, accumulation state, and screening requirements of the material on different frames 4, so that the material continuously bounces on the screen 42. The material with a particle size smaller than the aperture of the screen 42 passes through the screen 42 and falls onto the screen 42 of the lower frame 4, while the material with a particle size larger than the aperture of the screen 42 continues to slide to the left and is finally discharged from the end of the screen 42 into the container on the corresponding support platform 41. After multiple screenings, the finest material falls through the bottom screen 42 onto the guide plate 5 and then slides into the material frame 6, realizing the classified collection and centralized processing of materials of different particle sizes, greatly improving screening efficiency and accuracy, and enhancing the practicality and convenience of the device.

[0025] Example 2

[0026] Based on Example 1, such as Figure 1 and Figure 5As shown, it also includes a distributor 9 and a transmission component 91. The transmission component 91 is provided at the feed inlet of the top cover 3. The transmission component 91 is specifically a device that can realize linear reciprocating motion, such as an electric slide rail or a screw drive mechanism. It is installed at a suitable position at the feed inlet of the top cover 3. The distributor 9 is connected to the transmission component 91. The distributor 9 is fixedly connected to the output end of the transmission component 91 through a connecting plate or connecting rod. The discharge port at the lower end of the distributor 9 extends into the feed inlet. The transmission component 91 drives the distributor 9 to move back and forth. This can make the plastic granules entering the feed inlet more evenly distributed on the screen 42, avoid the material from accumulating in a certain area, and improve the screening efficiency and effect.

[0027] like Figure 2-4 As shown, it also includes a vision module 8. Each frame 4 is equipped with a vision module 8, which is fixedly connected to the frame 4 by mounting brackets or bolts. The vision lenses of the vision modules 8 are all facing the screen 42 on the same frame 4. The vision modules 8 can capture information such as the distribution, accumulation and screening progress of the material on the screen 42 in real time, and feed this information back to the control system. The control system precisely adjusts the vibration frequency and amplitude of the vibration modules 44 on each frame 4 according to the feedback information, further optimizing the screening process and improving the screening accuracy and automation.

[0028] like Figure 1-3 As shown, it also includes flexible side curtains 7. Flexible side curtains 7 are evenly distributed on the front, back, and left sides of the bottom of the frame 4. The flexible side curtains 7 are detachably connected to the corresponding positions at the bottom of the frame 4 via Velcro, hooks, or slots. The lower part of the flexible side curtains 7 hangs down onto the next frame 4, and the flexible side curtains 7 on the lowest frame 4 surround the guide plate 5. The flexible side curtains 7 can effectively prevent material from splashing out from the edges of the frame 4 during the screening process, reducing material loss, while guiding the material to flow orderly between the frames 4, ensuring the smooth progress of the screening process.

[0029] like Figure 1 and Figure 5 As shown, it also includes a frame 10 and a sliding cover 11. The top cover 3 has frames 10 on both the front and rear sides of the right side. The two frames 10 are respectively arranged around the front and rear ends of the transmission component 91. The frames 10 are fixed to the top cover 3 by welding, bolting, or other methods. Sliding covers 11 are slidably installed inside each frame 10. The sliding covers 11 slide with the frames 10 via slide rails. One end of each sliding cover 11 is connected to the distributor 9, specifically through connecting ropes, connecting rods, or other connecting components. The sliding cover 11, which provides a closed space, slides within the frame 10 when the distributor 9 moves to the front or rear end of the feed inlet, keeping the feed inlet closed. This closure is maintained even when the distributor 9 does not move, preventing external dust and impurities from entering the feed inlet during the distributor 9's movement, ensuring the purity of the material entering the screening device, and improving screening quality.

[0030] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit the scope of protection of this utility model. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the essence and scope of the technical solutions of this utility model.

Claims

1. A plastic granule screening device, comprising a housing (1); Its features are: It also includes a layered support (2), a connecting frame (21), a spring (22), a top cover (3), a frame (4), a support platform (41), a screen (42), a mounting frame (43), a vibration module (44), a guide plate (5), and a material frame (6). The top cover (3) is fixedly installed on the upper part of the equipment housing (1) inside the equipment housing (1). The top cover (3) has a feed port on the right side. The layered supports (2) are symmetrically arranged on both the front and rear sides. Each layered support (2) has multiple connecting frames (21) arranged vertically. The connecting frames (21) at the same height are connected to the frame (4) by springs (22). The other end of the spring (22) is connected to the connecting frame on the corresponding side. (21) Detachable connection to provide elastic support for the frame (4) in the horizontal direction. The bottom of the frame (4) is provided with a screen (42), and the screen (42) is high on the right and low on the left. The front and rear sides of the lower part of the frame (4) are provided with mounting brackets (43), and each mounting bracket (43) is provided with at least one vibration module (44). The left side of the equipment housing (1) is provided with support platforms (41) in the same number as the frame (4), which are used to place containers for receiving materials. The lower left side of the equipment housing (1) is provided with a sliding material frame (6), and the bottom of the lowest frame (4) is provided with a guide plate (5). The left end of the guide plate (5) extends into the space above the material frame (6).

2. A plastic granule screening device according to claim 1, characterized in that: It also includes a distributor (9) and a transmission component (91). The transmission component (91) is provided at the feed inlet of the top cover (3). The distributor (9) is connected to the transmission component (91). The discharge port at the lower end of the distributor (9) extends into the feed inlet. The transmission component (91) drives the distributor (9) to move back and forth.

3. A plastic granule screening device according to claim 2, characterized in that: It also includes a vision module (8), and the frame (4) is provided with a vision module (8), and the vision lens of the vision module (8) is facing the screen (42) on the same frame (4).

4. A plastic granule screening device according to claim 3, characterized in that: It also includes flexible side curtains (7), and flexible side curtains (7) are evenly distributed on the front, back and left sides of the bottom of the frame (4).

5. A plastic granule screening device according to claim 4, characterized in that: It also includes a frame (10) and a sliding cover (11). The top cover (3) has a frame (10) on both the front and rear sides of the right side. The two frames (10) are respectively arranged around the front and rear ends of the transmission component (91). The frame (10) is slidably provided with a sliding cover (11). The other end of the sliding cover (11) is connected to the distributor (9).

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