Screening device for high-precision nylon particle production

By using a centrifugal screening device and a layered screening design, the problems of clogging and inaccurate screening in nylon particle screening devices have been solved, achieving a highly efficient particle separation effect.

CN223933954UActive Publication Date: 2026-02-24HANGZHOU HENGSHUN ENGINEERING PLASTICS CO LTD
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Patent Information

Application Number
CN202520545028.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-26
Publication Date
2026-02-24
Estimated Expiration
2035-03-26

AI Technical Summary

Technical Problem

Existing nylon particle screening devices are prone to screen clogging and cannot perform precise screening, nor can they effectively separate particles of different sizes.

Method used

A centrifugal screening device is used, which uses a spiral blade and filter cylinder design to drive the nylon particles to move, and sets multiple filter holes to perform layered screening to achieve precise separation of particles.

Benefits of technology

It improves screening efficiency, can accurately separate nylon particles of different sizes, avoids screen clogging, and achieves efficient particle separation.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a high-precision screening device for nylon particle production, which belongs to the field of nylon particle production, and comprises a mounting bracket and a filter cartridge, the upper surface of the mounting bracket is fixedly connected with a mounting box, and the two ends of the filter cartridge respectively penetrate through and are fixedly connected to the left side surface and the right side surface of the mounting box; an L-shaped plate is fixedly connected to the right side face of the mounting box, a motor is fixedly connected to the side face of the L-shaped plate, the output end of the motor is rotationally connected to the side face of the L-shaped plate in a penetrating mode, the output end of the motor is fixedly connected with a rotating shaft, the rotating shaft is located in the filter cartridge, and spiral blades are fixedly connected to the end, close to the motor, of the rotating shaft. By arranging the centrifugal screening device, the traditional mode that particles are screened through vibration is changed, the screening work efficiency is improved, and by arranging layered screening, the particles of different specifications can be screened out in sequence from small to large, so that the particles are divided more accurately.
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Description

Technical Field

[0001] This utility model belongs to the field of nylon particle production, and in particular relates to a screening device for high-precision nylon particle production. Background Technology

[0002] Nylon particles are a type of plastic particles. They are high molecular polymers and are a general term for thermoplastic resins whose main molecular chain contains repeating amide groups. During the production of nylon particles, it is necessary to use a screening device to screen out the particles that meet the requirements.

[0003] Common nylon particle screening devices work by adding nylon particles into the device and using screen vibration to screen particles of different sizes. However, this vibrating screening method causes nylon particles to accumulate on the screen, and larger particles can easily clog the screen, affecting the screening process. Large particles remaining on the screen are difficult to remove, and this screening method can only screen particles of a fixed size, making precise screening impossible. Therefore, improvements to the screening device are needed. Utility Model Content

[0004] The purpose of this invention is to solve the problems mentioned in the background art and to propose a high-precision sieving device for the production of nylon particles.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A high-precision sieving device for producing nylon granules includes a mounting bracket and a filter cylinder. A mounting box is fixedly connected to the upper surface of the mounting bracket. The two ends of the filter cylinder are respectively fixedly connected to the left and right sides of the mounting box. An L-shaped plate is fixedly connected to the right side of the mounting box. A motor is fixedly connected to the side of the L-shaped plate. The output end of the motor is rotatably connected to the side of the L-shaped plate. A rotating shaft is fixedly connected to the output end of the motor. The rotating shaft is located inside the filter cylinder. A spiral blade is fixedly connected to the end of the rotating shaft near the motor. Multiple stirring blades are fixedly connected to the left side of the rotating shaft near the spiral blade.

[0007] Preferably, the right end of the filter cylinder has a plurality of first filter holes on its arc-shaped outer surface, and the left end of the filter cylinder has a plurality of second filter holes on its arc-shaped outer surface.

[0008] Preferably, the filter cartridge is fixedly connected to the arc-shaped outer surface of the outer side of the mounting box near the motor with a feed pipe, the upper end of the feed pipe is fixedly connected to a feed hopper, the feed pipe is connected to the filter cartridge, and the feed pipe is located above the spiral blades.

[0009] Preferably, the waste discharge pipe is fixedly connected to the arc-shaped outer surface of the filter cartridge located on the outside of the mounting box away from the motor.

[0010] Preferably, a first discharge pipe is fixedly connected through the lower right end of the mounting box, and a first discharge hopper is fixedly connected to the upper surface of the first discharge pipe. The first discharge hopper is located below a plurality of first filter holes.

[0011] Preferably, a second discharge pipe is fixedly connected through the lower left end of the mounting box, and a second discharge hopper is fixedly connected to the upper surface of the second discharge pipe. The second discharge hopper is located below a plurality of second filter holes.

[0012] Compared with the prior art, the present invention has the following advantages:

[0013] This invention improves the efficiency of particle screening by setting up a centrifugal screening device, which changes the traditional method of particle screening by vibration. By setting up layered screening, particles of different sizes can be screened out in order from small to large, making the classification more accurate. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of a high-precision sieving device for producing nylon particles proposed in this utility model;

[0015] Figure 2 This is a schematic diagram of the internal structure of a high-precision nylon particle production screening device proposed in this utility model.

[0016] Figure 3 This is a cross-sectional structural diagram of a high-precision nylon particle production screening device proposed in this utility model.

[0017] In the diagram: 1. Mounting bracket, 2. Mounting box, 3. L-shaped plate, 4. Motor, 5. Filter cylinder, 6. Feed hopper, 7. Discharge pipe, 8. First discharge pipe, 9. Second discharge pipe, 10. First filter hole, 11. Second filter hole, 12. Rotary shaft, 13. Spiral blade, 14. Stirring blade, 15. Feed pipe, 16. First discharge hopper, 17. Second discharge hopper. Detailed Implementation

[0018] The technical solution of this utility model will be further described below with reference to the accompanying drawings and embodiments.

[0019] Reference Figures 1-3A high-precision sieving device for producing nylon granules includes a mounting bracket 1 and a filter cylinder 5. A mounting box 2 is fixedly connected to the upper surface of the mounting bracket 1. The two ends of the filter cylinder 5 are respectively fixedly connected to the left and right sides of the mounting box 2. An L-shaped plate 3 is fixedly connected to the right side of the mounting box 2. A motor 4 is fixedly connected to the side of the L-shaped plate 3. The output end of the motor 4 is rotatably connected to the side of the L-shaped plate 3. A rotating shaft 12 is fixedly connected to the output end of the motor 4. The rotating shaft 12 is located inside the filter cylinder 5. A spiral blade 13 is fixedly connected to the end of the rotating shaft 12 near the motor 4. Multiple stirring blades 14 are fixedly connected to the left side of the rotating shaft 12 near the spiral blade 13. The rotating shaft 12 is driven to rotate by the motor 4, thereby driving the spiral blade 13 to rotate, sending the nylon granules entering the filter cylinder 5 into the filter screen for sieving. By setting a centrifugal screening device, the traditional method of particle screening by vibration is changed, improving the efficiency of sieving.

[0020] Multiple first filter holes 10 are provided on the arc-shaped outer surface of the right end of the filter cylinder 5. A first discharge pipe 8 is fixedly connected through the lower right end of the mounting box 2. A first discharge hopper 16 is fixedly connected to the upper surface of the first discharge pipe 8. The first discharge hopper 16 is located below the multiple first filter holes 10. When nylon particles pass through the first filter holes 10, smaller nylon particles are screened out through the first filter holes 10. The screened nylon particles will enter the first discharge pipe 8 through the first discharge hopper 16 and finally come out from the first discharge pipe 8.

[0021] Multiple second filter holes 11 are provided on the arc-shaped outer surface of the left end of the filter cylinder 5. A second discharge pipe 9 is fixedly connected through the lower left end of the mounting box 2. A second discharge hopper 17 is fixedly connected to the upper surface of the second discharge pipe 9. The second discharge hopper 17 is located below the multiple second filter holes 11. When nylon particles pass through the second filter holes 11, larger nylon particles are screened out through the second filter holes 11. The screened nylon particles will enter the second discharge pipe 9 through the second discharge hopper 17 and finally come out from the second discharge pipe 9. By setting up layered screening, particles of different specifications can be screened out from small to large in sequence, making the classification more accurate.

[0022] The filter cylinder 5 is located on the outer side of the mounting box 2, near the motor 4, and has a feed pipe 15 fixedly connected to its arc-shaped outer surface. The upper end of the feed pipe 15 is fixedly connected to the feed hopper 6. The feed pipe 15 is connected to the filter cylinder 5 and is located above the spiral blades 13. Nylon particles are fed in through the feed hopper 6, then through the feed pipe 15 into one end of the filter cylinder 5. The spiral blades 13 then drive the nylon particles forward until the nylon particles are completely screened. The outer side of the filter cylinder 5, away from the motor 4, has a waste discharge pipe 7 fixedly connected to its arc-shaped outer surface. After the qualified nylon particles are screened, the unscreened nylon particles are considered waste, and the final waste nylon particles are discharged through the waste discharge pipe 7.

[0023] The functional principle of this utility model can be explained through the following operation methods:

[0024] A high-precision sieving device for producing nylon granules includes a mounting bracket 1 and a filter cylinder 5. A mounting box 2 is fixedly connected to the upper surface of the mounting bracket 1. The two ends of the filter cylinder 5 are respectively fixedly connected to the left and right sides of the mounting box 2. An L-shaped plate 3 is fixedly connected to the right side of the mounting box 2. A motor 4 is fixedly connected to the side of the L-shaped plate 3. The output end of the motor 4 is rotatably connected to the side of the L-shaped plate 3. A rotating shaft 12 is fixedly connected to the output end of the motor 4. The rotating shaft 12 is located inside the filter cylinder 5. A spiral blade 13 is fixedly connected to the end of the rotating shaft 12 near the motor 4. Multiple stirring blades 14 are fixedly connected to the left side of the rotating shaft 12 near the spiral blade 13. The motor 4 drives the rotating shaft 12 to rotate, thereby driving the spiral blade 13 to rotate, sending the nylon granules entering the filter cylinder 5 into the filter screen for sieving. By setting a centrifugal screening device, the traditional method of granule screening by vibration is changed, improving the efficiency of sieving.

[0025] Multiple first filter holes 10 are provided on the arc-shaped outer surface of the right end of the filter cylinder 5. A first discharge pipe 8 is fixedly connected through the lower right end of the mounting box 2. A first discharge hopper 16 is fixedly connected to the upper surface of the first discharge pipe 8. The first discharge hopper 16 is located below the multiple first filter holes 10. When nylon particles pass through the first filter holes 10, smaller nylon particles are screened out through the first filter holes 10. The screened nylon particles will enter the first discharge pipe 8 through the first discharge hopper 16 and finally come out from the first discharge pipe 8.

[0026] Multiple second filter holes 11 are provided on the arc-shaped outer surface of the left end of the filter cylinder 5. A second discharge pipe 9 is fixedly connected through the lower left end of the mounting box 2. A second discharge hopper 17 is fixedly connected to the upper surface of the second discharge pipe 9. The second discharge hopper 17 is located below the multiple second filter holes 11. When nylon particles pass through the second filter holes 11, larger nylon particles are screened out through the second filter holes 11. The screened nylon particles will enter the second discharge pipe 9 through the second discharge hopper 17 and finally come out from the second discharge pipe 9. By setting up layered screening, particles of different specifications can be screened out from small to large in sequence, making the classification more accurate.

[0027] The filter cylinder 5 is located on the outer side of the mounting box 2, near the motor 4, and has a feed pipe 15 fixedly connected to its arc-shaped outer surface. The upper end of the feed pipe 15 is fixedly connected to the feed hopper 6. The feed pipe 15 is connected to the filter cylinder 5 and is located above the spiral blades 13. Nylon particles are fed in through the feed hopper 6, then through the feed pipe 15 into one end of the filter cylinder 5. The spiral blades 13 then drive the nylon particles forward until the nylon particles are completely screened. The outer side of the filter cylinder 5, away from the motor 4, has a waste discharge pipe 7 fixedly connected to its arc-shaped outer surface. After the qualified nylon particles are screened, the unscreened nylon particles are considered waste, and the final waste nylon particles are discharged through the waste discharge pipe 7.

[0028] 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 it. 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 spirit and scope of the technical solutions of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A high-precision sieving device for producing nylon granules, comprising a mounting bracket (1) and a filter cylinder (5), characterized in that, The mounting bracket (1) is fixedly connected to the upper surface of the mounting box (2). The two ends of the filter cylinder (5) are respectively fixedly connected to the left and right sides of the mounting box (2). The right side of the mounting box (2) is fixedly connected to an L-shaped plate (3). The side of the L-shaped plate (3) is fixedly connected to a motor (4). The output end of the motor (4) is rotatably connected to the side of the L-shaped plate (3). The output end of the motor (4) is fixedly connected to a rotating shaft (12). The rotating shaft (12) is located inside the filter cylinder (5). The end of the rotating shaft (12) near the motor (4) is fixedly connected to a spiral blade (13). The rotating shaft (12) is fixedly connected to a plurality of stirring blades (14) on the left side of the spiral blade (13).

2. The high-precision sieving device for producing nylon granules according to claim 1, characterized in that, The filter cylinder (5) has multiple first filter holes (10) on its right arc-shaped outer surface and multiple second filter holes (11) on its left arc-shaped outer surface.

3. The high-precision sieving device for producing nylon granules according to claim 1, characterized in that, The filter cylinder (5) is located on the outer side of the mounting box (2) near the motor (4) with a feed pipe (15) fixedly connected to its arc-shaped outer surface. The feed pipe (15) is fixedly connected to a feed hopper (6) at its upper end. The feed pipe (15) is connected to the filter cylinder (5) and is located above the spiral blade (13).

4. The high-precision sieving device for producing nylon granules according to claim 1, characterized in that, The filter cartridge (5) is located on the outer side of the mounting box (2) away from the motor (4), and the arc-shaped outer surface is fixedly connected to the waste discharge pipe (7).

5. A high-precision sieving device for producing nylon granules according to claim 2, characterized in that, The lower right end of the mounting box (2) is fixedly connected to a first discharge pipe (8), and the upper surface of the first discharge pipe (8) is fixedly connected to a first discharge hopper (16), which is located below a plurality of first filter holes (10).

6. The high-precision sieving device for producing nylon granules according to claim 2, characterized in that, The lower left end of the mounting box (2) is fixedly connected to a second discharge pipe (9), and the upper surface of the second discharge pipe (9) is fixedly connected to a second discharge hopper (17), which is located below a plurality of second filter holes (11).