Plastic particle screening device

Abstract

The utility model discloses a plastic particle screening device which comprises a bottom plate, an installation frame and a screening mechanism, the installation frame is installed on the side top face of the bottom plate, the screening mechanism is installed at the front end of the installation frame, the screening mechanism is composed of a box body, a rotating shaft and a screening plate, the whole box body is horizontally placed, the rotating shaft coaxial with the box body is installed in the box body, and the screening plate is installed on the rotating shaft. The plastic particle screening device comprises a box body, a rotating shaft is installed in the box body, screening plates are installed on the peripheral face of the rotating shaft, three sets of screening plates are distributed in an annular array mode, and the other end of the rotating shaft penetrates through the box body. The phenomenon that plastic particles are accumulated easily occurs, and the practicability of the granulator is reduced.

Description

Technical Field

[0001] This utility model relates to the field of plastic granule processing technology, and in particular to a plastic granule screening device. Background Technology

[0002] Plastic particle screening refers to the process of separating and classifying plastic particles of different sizes or shapes. Screening removes impurities, substandard particles, and particles that are too large or too small, ensuring consistent final product quality. Screening equipment can complete screening tasks quickly and efficiently, improving production efficiency and reducing labor costs. Depending on the application scenario and product requirements, it can screen plastic particles within a specific particle size range to meet the needs of subsequent processing or use. Plastic particle screening is widely used in the plastics manufacturing, chemical, and food processing industries. In the plastics manufacturing industry, screening is a crucial step in plastic recycling and reuse; in the chemical industry, screening is used to separate solid catalysts and filter liquids; and in the food processing industry, screening is used to remove impurities and perform grading. In summary, plastic particle screening is an indispensable part of the plastics processing process, playing a vital role in improving product quality, increasing production efficiency, and meeting specific needs. With continuous technological advancements, plastic particle screening technology and equipment will continue to improve and evolve.

[0003] Currently, when screening plastic granules, the screen is usually fixed inside the box, which makes it difficult to screen the plastic granules conveniently and effectively. This easily leads to the accumulation of plastic granules, reducing the practicality of the granulator.

[0004] Therefore, it is necessary to provide a plastic particle screening device to solve the above-mentioned technical problems. Utility Model Content

[0005] In view of the above situation and to overcome the defects of the existing technology, this utility model provides a plastic granule screening device. The screen of the existing screening device is generally fixed in the box, which makes it difficult to screen plastic granules conveniently and effectively. The phenomenon of plastic granules accumulating is very easy to occur, which reduces the practicality of the granulator.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0007] A plastic pellet screening device includes: a base plate, a mounting frame, and a screening mechanism;

[0008] A mounting frame is installed on the top side of the base plate, and a screening mechanism is installed at the front end of the mounting frame. The screening mechanism consists of a box, a rotating shaft, and screening plates. The box is placed horizontally, and a rotating shaft is installed inside it and is coaxially arranged with it. Screening plates are installed on the outer circumference of the rotating shaft. The screening plates are arranged in three sets in a circular array. The other end of the rotating shaft passes through the box.

[0009] In one embodiment, two sets of screening mechanisms are installed at intervals, with different screening diameters for the two sets of screening mechanisms, wherein the screening diameter of the upper set is larger than that of the lower set. A transition plate is installed between the upper and lower adjacent screening mechanisms. The transition plate is arranged in a Y-shape, with its top outside the discharge area of ​​the upper screening mechanism and its bottom outside the feed area of ​​the lower screening mechanism.

[0010] In one embodiment, the shafts transmit power via a belt, wherein the upper shaft is mounted to a motor mounted on the top side of a mounting bracket.

[0011] In one embodiment, the screening mechanism further includes: a feed inlet, a sealing plate, and a screen plate. The feed inlet is installed on the top of the box, the sealing plate is installed on the right side of the box, and a notch is opened on the inner bottom surface of the box. The screen plate is installed in the notch and has a near-fan-shaped structure.

[0012] In one embodiment, positioning grooves are provided on both sides of the notch of the box body, and support rods are installed in the positioning grooves. Insertion holes are provided on both sides of the top of the sieve plate.

[0013] The beneficial effects of this utility model are as follows:

[0014] (1) This utility model pours plastic granules into the box from the feed inlet. As the screening plate rotates, the plastic granules are evenly distributed in the area between adjacent screening plates. As the screening plate rotates, some of the plastic granules are screened out from the screen plate when they pass through the screen hole plate. They then pass through the transition plate into the screening mechanism below for secondary screening. Through the structural design of the screening mechanism, the plastic granules are prevented from clogging and agglomerating during screening. Continuous feeding is possible, making the plastic granules more evenly screened and improving the overall screening efficiency and effect.

[0015] (2) This utility model removes the screen plate laterally along the horizontal direction, so that the insertion hole gradually gets away from the limit of the support rod, opens the notch of the box, and allows the unscreened particles inside to fall down. The lower screen plate is removed first, and after collecting the particles, the upper screen plate is removed to complete the staged screening operation. Attached Figure Description

[0016] Figure 1This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a detailed view of the screening mechanism and transition plate of this utility model;

[0018] Figure 3 This is a detailed view of the disassembled screening mechanism of this utility model;

[0019] Figure 4 This is a detailed internal view of the screening mechanism of this utility model.

[0020] The corresponding names of the attached figures are: base plate 1, mounting frame 2, screening mechanism 3, box 31, feed inlet 32, sealing plate 33, rotating shaft 34, screening plate 35, screen hole plate 36, insertion hole 37, positioning groove 38, support rod 39, motor 4, belt 41, transition plate 5. Detailed Implementation

[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments. The embodiments of the present invention include, but are not limited to, the following embodiments.

[0022] like Figures 1-2 As shown, the present invention provides a plastic granule screening device, comprising: a base plate 1, a mounting frame 2, and a screening mechanism 3;

[0023] like Figures 1-3 As shown, a mounting frame 2 is installed on the top side of the base plate 1, and a screening mechanism 3 is installed at the front end of the mounting frame 2. The screening mechanism 3 consists of a box 31, a rotating shaft 34, and screening plates 35. The box 31 is placed horizontally, and a rotating shaft 34 is installed inside it, coaxially with it. Screening plates 35 are installed on the outer circumference of the rotating shaft 34. The screening plates 35 are arranged in three sets in a ring array. The other end of the rotating shaft 33 passes through the box 31. Through the arrangement of the rotating shaft 34 and the screening plates 35, the plastic particles are continuously rotated and screened inside the box 31 to avoid clogging.

[0024] Preferably, in one embodiment, such as Figures 1-2 As shown, two sets of screening mechanisms 3 are installed at intervals, one above the other. The screening diameters of the two sets of screening mechanisms 3 are different, with the upper screening diameter being larger than that of the lower screening diameter. A transition plate 5 is installed between the upper and lower adjacent screening mechanisms 3. The transition plate 5 is arranged in a Y-shape, with its top outside the discharge area of ​​the upper screening mechanism 3 and its bottom outside the feed area of ​​the lower screening mechanism 3. The plastic particles screened by the upper screening mechanism 3 are introduced into the lower screening mechanism 3 for secondary screening.

[0025] Preferably, in one embodiment, such as Figures 1-2As shown, the rotating shafts 34 are powered by a belt 41. The upper rotating shaft 34 is connected to a motor 4. The motor 4 is mounted on the top side of the mounting frame 2. During operation, the rotating shaft 34 is driven to rotate by starting the motor 4. The belt 41 allows the two screening plates 35 to rotate synchronously.

[0026] Preferably, in one embodiment, such as Figures 2-3 As shown, the screening mechanism 3 further includes: a feed inlet 32, a sealing plate 33, and a perforated screen plate 36. The feed inlet 32 ​​is installed on the top of the box 31, and the sealing plate 33 is installed on the right side of the box 31. A notch is opened on the inner bottom surface of the box 31, and a perforated screen plate 36 is installed in the notch. The perforated screen plate 36 has a near-fan-shaped structure. During operation, plastic particles are poured into the box 31 from the feed inlet 32. As the screening plate 35 rotates, the plastic particles are evenly distributed in the area between adjacent screening plates 35. As the screening plate 35 rotates, when the plastic particles pass through the perforated screen plate 36, some particles are screened out from the perforated screen plate 36 and enter the screening mechanism 3 below through the transition plate 5 for secondary screening. Through the structural design of the screening mechanism 3, the blockage and aggregation of plastic particles during screening are avoided, and continuous feeding can be carried out, so that the plastic particles are screened more evenly, improving the overall screening efficiency and screening effect.

[0027] Preferably, in one embodiment, such as Figure 4 As shown, positioning grooves 38 are provided on both sides of the notch of the box 31, and support rods 39 are installed in the positioning grooves 38. Insertion holes 37 are provided on both sides of the top of the sieve plate 36. During operation, after stage screening, the sieve plate 36 is removed laterally in the horizontal direction, so that the insertion holes 37 gradually disengage from the limit of the support rods 39, opening the notch of the box 31 and allowing the unscreened particles inside to fall out. The lower sieve plate 36 is removed first, and after the particles are collected, the upper sieve plate 36 is removed to complete the stage screening operation.

[0028] Working principle of this utility model:

[0029] During operation, the motor 4 drives the rotating shaft 34 to rotate. The belt 41 ensures that the two screening plates 35 rotate synchronously. Plastic granules are poured into the housing 31 from the feed inlet 32. As the screening plates 35 rotate, the granules are evenly distributed between adjacent plates. As the screening plates 35 rotate, some granules are screened out through the perforated screen 36 and pass through the transition plate 5 into the lower screening mechanism 3 for secondary screening. The structure of component 3 avoids clogging and agglomeration of plastic particles during screening, allowing for continuous feeding and more uniform screening of plastic particles, thus improving overall screening efficiency and effect. By removing the screen plate 36 laterally along the horizontal direction, the insertion hole 37 gradually disengages from the limit of the support rod 39, opening the notch of the box 31 and allowing unscreened particles to fall out. The lower screen plate 36 is removed first to collect the particles, and then the upper screen plate 36 is removed to complete the staged screening operation.

[0030] The above embodiments are merely one of the preferred embodiments of this utility model and should not be used to limit the scope of protection of this utility model. Any modifications or refinements made to the main design concept and spirit of this utility model that are not of substantial significance, but solve the same technical problem as this utility model, should be included within the scope of protection of this utility model.

Claims

1. A plastic granule screening device, characterized in that, include: Base plate, mounting frame, screening mechanism; A mounting frame is installed on the top side of the base plate, and a screening mechanism is installed at the front end of the mounting frame. The screening mechanism consists of a box, a rotating shaft, and screening plates. The box is placed horizontally, and a rotating shaft is installed inside it and is coaxially arranged with it. Screening plates are installed on the outer circumference of the rotating shaft. The screening plates are arranged in three sets in a circular array. The other end of the rotating shaft passes through the box.

2. The plastic granule screening device according to claim 1, characterized in that, The screening mechanism consists of two sets installed at intervals, with different screening diameters for the two sets, the upper screening diameter being larger than the lower screening diameter. A transition plate is installed between the upper and lower adjacent screening mechanisms. The transition plate is arranged in a Y-shape, with its top outside the discharge area of ​​the upper screening mechanism and its bottom outside the feed area of ​​the lower screening mechanism.

3. The plastic granule screening device according to claim 1, characterized in that, The rotating shafts transmit power via belts, with the upper rotating shaft connected to a motor mounted on the top side of the mounting bracket.

4. The plastic granule screening device according to claim 2, characterized in that, The screening mechanism further includes: a feed inlet, a sealing plate, and a screen plate. The feed inlet is installed on the top of the box, the sealing plate is installed on the right side of the box, and a notch is opened on the inner bottom surface of the box. The screen plate is installed in the notch and has a near-fan-shaped structure.

5. A plastic granule screening device according to claim 4, characterized in that, The box body has positioning grooves on both sides of the notch, and a support rod is installed in the positioning groove. The screen plate has insertion holes on both sides of the top.

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