Plastic particle shaker screen

Abstract

The utility model discloses a plastic particle vibrating screen belongs to plastic particle processing technical field, and it aims at solving the effective control of the feed quantity in prior art usually, when the material is more, and it is easy to appear one -time feeding too much condition, and a large number of plastic particles will instantaneously surge to the screen surface, which not only will make the screen surface bear greater pressure, and accelerate the wear speed of screen cloth, but also will cause the material accumulation to be too thick, and the mutual extrusion between particles, and hinder fine particles through the screen hole, simultaneously, too many material particles instantaneously enter the screen surface, and it will cause most materials to directly follow the inclination angle of vibrating screen and roll to the discharge part quickly, and further cause the problem of incomplete screening, and seriously reduce the screening quality. Including vibrating screen main part, the one side of vibrating screen main part is equipped with mounting bracket, and the middle part of mounting bracket and the one side middle part of vibrating screen main part are jointly equipped with quantitative feeding mechanism, the middle part of vibrating screen main part is equipped with screen rack, and the periphery of screen rack is equipped with replacement mechanism.

Description

Technical Field

[0001] This utility model belongs to the field of plastic granule processing technology, specifically relating to a plastic granule vibrating screen. Background Technology

[0002] Plastic granules, or granular plastic, can be further processed into various plastic products. The preparation of plastic granules typically involves first mixing and melting plastic raw materials and various masterbatches, then extruding them through an extruder. In plastic extrusion production, particle homogenization and screening are crucial processes, requiring vibrating screens. Vibrating screens remove particles that do not meet size requirements. Currently, most plastic granule screening uses vibrating screens, which are tilted. The plastic granules are vibrated and move from the upper end of the screen to the lower end of the discharge port, passing through the screen openings during this movement.

[0003] Currently, vibrating screens for plastic granules often cannot effectively control the feed rate during use. When there is a large amount of material, it is easy to overfeed at one time, causing a large number of plastic granules to rush onto the screen surface instantly. This not only puts a lot of pressure on the screen surface and accelerates the wear of the screen mesh, but also causes the granules to be squeezed together due to excessive material accumulation, hindering the passage of fine granules through the screen holes. At the same time, too many material granules entering the screen surface instantly will cause most of the material to roll quickly towards the discharge section along the tilt angle of the vibrating screen, resulting in incomplete screening and seriously reducing the screening quality. Utility Model Content

[0004] (1) Technical problems to be solved To address the shortcomings of existing technologies, the purpose of this utility model is to provide a vibrating screen for plastic granules. This addresses the common problem in existing technologies where effective control of the feed rate is difficult. When there is a large amount of material, excessive feed at once can easily occur, causing a large number of plastic granules to surge onto the screen surface. This not only puts significant pressure on the screen surface and accelerates screen wear, but also results in excessive material accumulation and inter-particle compression, hindering fine particles from passing through the screen holes. Furthermore, the instantaneous entry of too many material particles onto the screen surface causes most of the material to roll rapidly towards the discharge section along the tilt angle of the vibrating screen, leading to incomplete screening and severely reducing screening quality.

[0005] (2) Technical solution To solve the above-mentioned technical problems, this utility model provides a plastic particle vibrating screen, including a vibrating screen body, a mounting frame installed on one side of the vibrating screen body, and a quantitative feeding mechanism jointly installed in the middle of the mounting frame and the middle of one side of the vibrating screen body. A screen frame is installed in the middle of the vibrating screen body, and a replacement mechanism is installed around the four sides of the screen frame. The quantitative feeding mechanism includes a ring-shaped guide frame, which is fixedly installed in the upper middle of the mounting frame. A quantitative component is jointly equipped inside the ring-shaped guide frame and at its upper and lower ends. A leveling component is provided in the middle of one side of the vibrating screen body.

[0006] Furthermore, the metering component includes an upper feed rack, which is fixed above the annular guide frame. A rotating rod is installed in the middle of the annular guide frame, and a drive motor is installed at one end of the rotating rod connected to the middle of one side of the annular guide frame. An inner annular guide cylinder is fixed around the rotating rod, and metering grooves are distributed around the inner annular guide cylinder. A discharge plate is connected to the lower part of the annular guide frame, and partition plates are distributed on the surface of the discharge plate.

[0007] Furthermore, the inner ring guide cylinder and the ring-mounted guide frame are connected by a movable guide assembly.

[0008] Furthermore, the partition plates are respectively fixed above the discharge plate.

[0009] Furthermore, the leveling component includes a guide frame, which is disposed on both sides of the middle part of the vibrating screen body. A scraping frame is mounted on the middle part and one side of the guide frame, and a first screw groove is provided on both sides of the scraping frame. A second screw groove is provided on the upper part of one side of the guide frame, and a first bolt rod is screwed into the middle of the second screw groove.

[0010] Furthermore, the guide frame and the scraping frame are connected by a movable lifting mechanism.

[0011] Furthermore, the replacement mechanism includes a third screw groove, which is formed around the perimeter of the screen frame, and a second bolt rod is screwed into the center of the third screw groove.

[0012] Furthermore, the third screw groove and the second bolt rod are symmetrically distributed along the central axis of the screen frame.

[0013] (3) Beneficial effects Compared with the prior art, the beneficial effects of this utility model are as follows: The operator guides the plastic granules to be processed into the upper feed rack above the ring-shaped guide frame. Then, the drive motor is started, causing the rotating rod to intermittently rotate the inner ring guide cylinder, which is movably mounted in the middle of the ring-shaped guide frame. Because the inner ring guide cylinder has equidistantly distributed metering grooves, the material fills the metering grooves in stages and sections, and is discharged meteredly as the inner ring guide cylinder rotates. Simultaneously, the discharge plate surface has multiple partitions, which can disperse and transport the metered material along the partitions, spreading it to different positions above the screen frame, reducing material accumulation and localized overload. Furthermore, the operator can use the first bolt rod to fix the spreading frame in a suitable position on the guide frame according to the preset first screw groove and the aligned second screw groove. In this way, when the vibrating screen body works with the screen frame to vibrate and screen the material, the spreading frame can further flatten the material, ensuring that after the material passes through, the particle thickness in each area of ​​the screen frame is moderate, and all screen holes can fully function, maximizing the screening area.

[0014] The inventors of this invention can subsequently replace the screen frame installed on the vibrating screen body using the third screw groove and the second bolt rod according to the size difference of the granular material to be vibrated, thereby improving the adaptability of screening materials of different sizes. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a partial structural diagram of the quantitative feeding mechanism; Figure 3 for Figure 1 Schematic diagram of the structure at point A in the middle; Figure 4 for Figure 1 Schematic diagram of the structure at point B.

[0017] The labels in the attached diagram are as follows: 1. Vibrating screen body; 2. Mounting frame; 3. Quantitative feeding mechanism; 31. Ring guide frame; 32. Quantitative component; 321. Upper feed frame; 322. Rotating rod; 323. Drive motor; 324. Inner ring guide cylinder; 325. Quantitative trough; 326. Discharge plate; 327. Divider plate; 33. Leveling component; 331. Guide frame; 332. Scraper frame; 333. First screw groove; 334. Second screw groove; 335. First bolt rod; 4. Screen frame; 5. Replacement mechanism; 51. Third screw groove; 52. Second bolt rod. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] This specific embodiment is a vibrating screen for plastic granules, and its structural schematic diagram is shown below. Figures 1 to 4As shown, the system includes a vibrating screen body 1, a mounting frame 2 on one side of the vibrating screen body 1, and a quantitative feeding mechanism 3 jointly mounted on the middle of the mounting frame 2 and the middle of one side of the vibrating screen body 1. A screen frame 4 is mounted in the middle of the vibrating screen body 1, and a replacement mechanism 5 is mounted on the four sides of the screen frame 4. The quantitative feeding mechanism 3 includes an annular guide frame 31, which is fixedly mounted on the upper middle of the mounting frame 2. A quantitative component 32 is jointly mounted inside and at the upper and lower ends of the annular guide frame 31. The quantitative component 32 includes an upper feed frame 321, which is fixedly mounted on the upper part of the annular guide frame 31. A rotating rod 322 is mounted in the middle of the annular guide frame 31, and a rotating rod 322 is connected to the middle of one side of the annular guide frame 31. A drive motor 323 is installed at one end of the rotating rod 322. An inner ring guide cylinder 324 is fixed around the rotating rod 322. The inner ring guide cylinder 324 is connected to the ring-mounted guide frame 31 by a movable guide connection. A metering groove 325 is provided around the inner ring guide cylinder 324. A discharge plate 326 is connected below the ring-mounted guide frame 31. A partition plate 327 is provided on the surface of the discharge plate 326. The partition plate 327 is fixed above the discharge plate 326. A leveling component 33 is provided in the middle of one side of the vibrating screen body 1. The leveling component 33 includes a guide frame 331, which is located on both sides of the middle side of the vibrating screen body 1. A spreading scraper 332 is mounted in the middle and on one side of the guide frame 331. The scraper 332 has first screw grooves 333 on both sides, and the guide frame 331 has a second screw groove 334 on the upper part of one side. A first bolt rod 335 is screwed into the middle of the second screw groove 334. The guide frame 331 and the scraper 332 are connected by a movable lifting connection. The operator feeds the plastic granules to be processed into the upper feed rack 321 above the ring guide frame 31, and then starts the drive motor 323, which causes the rotating rod 322 to drive the inner ring guide cylinder 324, which is movably installed in the middle of the ring guide frame 31, to rotate intermittently. Since the inner ring guide cylinder 324 has metering grooves 325 evenly distributed around it, the material will fill the metering grooves 325 in stages and sections, and achieve metered discharge with the rotation of the inner ring guide cylinder 324. At the same time, the surface of the discharge plate 326 is provided with multiple partition plates 327, which can disperse and transport a quantitative amount of material along the partition plates 327 and spread it to different positions above the screen frame 4, reducing material accumulation and local overload. In addition, the operator can use the first bolt rod 335 to fix the spreading frame 332 to the appropriate position of the guide frame 331 according to the preset first screw groove 333 and the aligned second screw groove 334. In this way, when the vibrating screen body 1 cooperates with the screen frame 4 to vibrate and screen the material, the spreading frame 332 can further spread the material, ensuring that after the material passes through, the particle thickness in each area of ​​the screen frame 4 is moderate, and all screen holes can play a full role, so as to maximize the screening area.

[0020] The replacement mechanism 5 includes a third screw groove 51, which is located around the perimeter of the screen frame 4. A second bolt rod 52 is screwed into the middle of the third screw groove 51. The third screw groove 51 and the second bolt rod 52 are symmetrically distributed along the central axis of the screen frame 4. Personnel can use the third screw groove 51 and the second bolt rod 52 to replace the screen frame 4 installed on the vibrating screen body 1 according to the size difference of the particle material to be screened, thereby improving the adaptability of screening materials of different sizes.

[0021] Working principle: The operator feeds the plastic granules to be processed into the upper feed rack 321 above the ring guide frame 31. Then, the drive motor 323 is started, causing the rotating rod 322 to drive the inner ring guide cylinder 324, which is movably installed in the middle of the ring guide frame 31, to rotate intermittently. Since the inner ring guide cylinder 324 has quantitative grooves 325 evenly distributed around its perimeter, the material will fill the quantitative grooves 325 in stages and sections, and achieve quantitative discharge with the rotation of the inner ring guide cylinder 324. At the same time, the surface of the discharge plate 326 is provided with multiple partition plates 327, which can disperse and transport the quantitative material along the partition plates 327, spreading it to different positions above the screen frame 4, reducing material accumulation and local overload. In addition, the operation... Personnel can use the first bolt rod 335 to fix the spreading frame 332 to a suitable position on the guide frame 331 according to the preset first screw groove 333 and the aligned second screw groove 334. In this way, when the vibrating screen body 1 cooperates with the screen frame 4 to vibrate and screen the material, the spreading frame 332 can further flatten the material, ensuring that after the material passes through, the particle thickness in each area of ​​the screen frame 4 is moderate, and all screen holes can play a full role, so as to maximize the screening area. Personnel can then use the third screw groove 51 and the second bolt rod 52 to replace the screen frame 4 installed on the vibrating screen body 1 according to the size difference of the particle material to be vibrated and screened, thereby improving the adaptability of screening materials of different sizes.

[0022] All technical features in this embodiment can be freely combined according to actual needs.

[0023] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A vibrating screen for plastic granules, comprising a vibrating screen body (1), characterized in that, A mounting frame (2) is installed on one side of the vibrating screen body (1), and a quantitative feeding mechanism (3) is jointly installed in the middle of the mounting frame (2) and the middle of one side of the vibrating screen body (1). A screen frame (4) is installed in the middle of the vibrating screen body (1), and a replacement mechanism (5) is installed around the four sides of the screen frame (4). The quantitative feeding mechanism (3) includes a ring guide frame (31), and the ring guide frame (31) is fixed in the middle of the upper part of the mounting frame (2). A quantitative component (32) is jointly equipped inside the ring guide frame (31) and at its upper and lower ends. A leveling component (33) is provided in the middle of one side of the vibrating screen body (1).

2. The vibrating screen for plastic granules according to claim 1, characterized in that, The quantitative component (32) includes an upper feed rack (321), which is fixed above the ring guide frame (31). A rotating rod (322) is installed in the middle of the ring guide frame (31), and a drive motor (323) is installed at one end of the rotating rod (322) connected to the middle of one side of the ring guide frame (31). An inner ring guide cylinder (324) is fixed around the rotating rod (322), and a quantitative groove (325) is provided around the inner ring guide cylinder (324). A discharge plate (326) is connected below the ring guide frame (31), and a partition plate (327) is provided on the surface of the discharge plate (326).

3. The vibrating screen for plastic granules according to claim 2, characterized in that, The inner ring guide tube (324) and the ring-mounted guide frame (31) are connected by a movable guide.

4. The vibrating screen for plastic granules according to claim 2, characterized in that, The partition plate (327) is fixed above the discharge plate (326).

5. The vibrating screen for plastic granules according to claim 1, characterized in that, The leveling component (33) includes a guide frame (331), and the guide frame (331) is located on both sides of the middle part of the vibrating screen body (1). The middle part and one side of the guide frame (331) are equipped with a scraper (332), and the two sides of the scraper (332) are provided with a first screw groove (333). The upper part of one side of the guide frame (331) is provided with a second screw groove (334), and the middle part of the second screw groove (334) is screwed with a first bolt rod (335).

6. The vibrating screen for plastic granules according to claim 5, characterized in that, The guide frame (331) and the scraping frame (332) are connected by a movable lifting mechanism.

7. The vibrating screen for plastic granules according to claim 1, characterized in that, The replacement mechanism (5) includes a third screw groove (51), which is located on the four sides of the screen frame (4). A second bolt rod (52) is screwed into the middle of the third screw groove (51).

8. The vibrating screen for plastic granules according to claim 7, characterized in that, The third screw groove (51) and the second bolt rod (52) are symmetrically distributed along the central axis of the screen frame (4).

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