A vortex classifying screen structure of a resin raw material pulverizer

Abstract

The utility model relates to resin raw material processing technical field, propose a kind of resin raw material rubbing crusher's vortex classification screening structure, the design includes main component, and main component includes processing cylinder;Screening assembly is arranged in the middle part of processing cylinder;Screening assembly includes screening cylinder and the first screen hole being annularly penetrated and arranged in the periphery of screening cylinder;Screening cylinder is fixedly connected at the inner wall of processing cylinder;Adjusting assembly capable of controlling the aperture size of screen hole is arranged in screening cylinder;Sweeping assembly for being used to sweep raw material outward through the first screen hole is arranged in processing cylinder below screening cylinder;The design passes through adjustable screen hole structure and vortex-mechanical collaborative classification mechanism, solve the problem that traditional resin rubbing crusher screens rigidity, efficiency is low, significantly improve equipment adaptability and classification precision, especially applicable to the high polymer material processing scene needing multistage granularity control.

Description

Technical Field

[0001] This utility model relates to the field of resin raw material processing technology, specifically to a vortex classifying and screening structure for a resin raw material pulverizer. Background Technology

[0002] Resin raw material pulverizers are used to crush resin particles into fine powder to meet various industrial needs. Their working principle is typically based on a high-speed rotating toothed disc or blades, achieving pulverization through impact, friction, and collision between materials. During the pulverization process, some models, such as cryogenic resin pulverizers, employ liquid nitrogen or water cooling systems to prevent heat-sensitive resins from softening and sticking due to high temperatures, ensuring pulverization efficiency. Eddy current classification and screening is a crucial step in the fine classification of the pulverized resin powder. Eddy current classifiers utilize the principle of balancing centrifugal force and radial drag generated by the tangential velocity of the airflow to separate fine particles from coarse particles. Fine particles are discharged with the airflow and collected, while coarse particles fall to the bottom and are discharged. This process ensures a uniform particle size distribution of the resin powder, improving product quality. Simultaneously, screening removes impurities and excessively large particles, ensuring the flowability and molding properties of the resin raw material in subsequent processing, meeting the stringent requirements for raw material fineness and purity in industries such as plastics, rubber, and coatings.

[0003] A search revealed that CN217189913U discloses a raw material crusher for preparing polyvinyl chloride paste resin, specifically relating to the field of raw material crushers. The crusher includes a housing. This invention, by incorporating a ring plate, locking blocks, locking grooves, recesses, and buffer pads, facilitates the connection between the inner wall of the ring plate and the outer wall of the connecting column. The connection continues until the locking block at the bottom of the ring plate engages with the corresponding locking groove at the top of the top plate. The installation of sliders, sliding grooves, adhesive plates, locking columns, and limiting grooves allows the sliders fixedly connected to the bottom of the adhesive plate to move with the corresponding sliding grooves at the top of the ring plate. This allows the adhesive plate to move at the top of the ring plate until one side of the adhesive plate is tightly fitted against the outer wall of the connecting column, effectively improving the stability of the ring plate and connecting column installation. This enhances the stability of the connection column and top plate installation during the raw material crushing process inside the connecting column.

[0004] The screening structure of the raw material crusher for preparing polyvinyl chloride paste resin described above uses a screen with a fixed aperture, which cannot adjust the screening particle size according to processing requirements, resulting in an inability to flexibly adapt to the crushing requirements of different resin raw materials. Utility Model Content

[0005] This invention proposes a vortex classifying and screening structure for a resin raw material pulverizer, which solves the problem that the existing technology has a fixed screening structure in the middle, which cannot adapt to the needs of multi-stage particle size.

[0006] A vortex classifying and screening structure for a resin raw material pulverizer includes a main component, the main component including a processing cylinder; A screening assembly is installed in the middle of the processing cylinder; The screening assembly includes a screening cylinder and a first screen hole that is annularly opened throughout the circumference of the screening cylinder; The screening cylinder is fixedly connected to the inner wall of the processing cylinder; An adjustment component installed inside the screening cylinder to control the size of the sieve aperture; A material sweeping assembly is installed inside the processing cylinder below the screening cylinder and is used to sweep the raw material outward through the first sieve hole.

[0007] Preferably, the main component further includes: An air inlet channel is fixedly connected to the side of the processing cylinder; The air inlet channel is connected to the inside of the processing cylinder; A vortex fan is fixedly installed in the middle of the air inlet channel.

[0008] Preferably, the main component further includes: A ring chamber fixedly connected to the top of the processing cylinder; A discharge channel is formed on the side of the annular compartment; The discharge trough is connected to the annular chamber and the processing cylinder.

[0009] Preferably, the main component further includes: A collection trough extending through the bottom of the processing cylinder.

[0010] Preferably, the screening component further includes: A support plate is fixedly connected to the bottom of the screening cylinder.

[0011] Preferably, the adjustment component includes: A first motor is fixedly installed inside the processing cylinder; A first rotating shaft fixedly connected to the output end of the first motor; A geared disc fixedly connected to the lower end of the first rotating shaft.

[0012] Preferably, the adjustment component further includes: An inner rotating cylinder is disposed inside the screening cylinder; The ball bearings are rotatably connected to the outside of the inner rotating cylinder in a ring shape; The ball bearings are in contact with the inside of the screening cylinder; The inner rotating cylinder is rotatably connected to the inside of the screening cylinder via ball bearings; Rubber rings are fixedly connected to the upper and lower outer sides of the inner rotating cylinder; The second sieve hole is formed in a ring shape and extends through the entire circumference of the inner rotating cylinder.

[0013] Preferably, the adjustment component further includes: The toothed grooves are arranged in a ring on the outside of the inner rotating cylinder; The tooth groove assembly is in contact with the toothed disc and is meshed and rotatably connected.

[0014] Preferably, the sweeping assembly includes: A second motor is fixedly installed at the bottom of the support plate; A second rotating shaft fixedly connected to the output end of the second motor; A turntable fixedly connected to the top of the second rotating shaft.

[0015] Preferably, the sweeping assembly further includes: The sweeping plate is fixedly connected in a ring to the top of the turntable.

[0016] The beneficial effects of this utility model are as follows: The sieving structure in the comparison document uses a fixed aperture screen, which cannot adjust the sieving particle size according to processing requirements. This makes it unable to flexibly adapt to the crushing requirements of different resin raw materials, such as heat-sensitive resins which require low-temperature crushing and rapid classification.

[0017] Improvements in this patent: By adjusting the double-layer sieve structure of the inner rotating cylinder and the sieving cylinder in the assembly, and using the first motor to drive the gear disc to mesh with the toothed groove assembly, the inner rotating cylinder is rotated, dynamically adjusting the overlap between the second and first sieve holes, thereby controlling the sieve aperture size. This design can meet the grading requirements of resin powders with different particle sizes, improving the versatility of the equipment. Attached Figure Description

[0018] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0019] Figure 1 This is a cross-sectional view of the main components of this utility model; Figure 2 This is a structural connection diagram of the screening component, the adjusting component, and the sweeping component of this utility model; Figure 3 This is a schematic diagram of the screening component of this utility model; Figure 4 This is an exploded view of the screening component, adjusting component, and sweeping component of this utility model; In the diagram: 1. Main component; 11. Processing cylinder; 12. Air inlet channel; 121. Vortex fan; 13. Circular hopper; 131. Discharge trough; 14. Collection trough; 2. Screening component; 21. Screening cylinder; 211. First screen hole; 22. Support plate; 3. Adjustment component; 31. First motor; 311. First rotating shaft; 312. Gear disc; 32. Inner rotating cylinder; 321. Second screen hole; 322. Gear groove group; 323. Rubber ring; 324. Ball bearing; 4. Sweeping component; 41. Second motor; 411. Second rotating shaft; 42. Turntable; 421. Sweeping plate. Detailed Implementation

[0020] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this utility model.

[0021] Please see Figure 1 and Figure 2 and Figure 3 and Figure 4 This utility model provides a technical solution: a vortex grading and screening structure for a resin raw material pulverizer, including a main component 1, the main component 1 including a processing cylinder 11; Screening assembly 2 is located in the middle of processing cylinder 11; The screening assembly 2 includes a screening cylinder 21 and a first screen hole 211 that is annularly opened around the periphery of the screening cylinder 21; The screening cylinder 21 is fixedly connected to the inner wall of the processing cylinder 11; An adjusting component 3, installed inside the screening cylinder 21, is used to control the size of the screen aperture. A material sweeping assembly 4 is installed inside the processing cylinder 11 below the screening cylinder 21 and is used to sweep the raw material outward through the first screen hole 211. This design solves the problems of rigidity and low efficiency in traditional resin pulverizers by using an adjustable sieve structure and an eddy current-mechanical synergistic grading mechanism, significantly improving the equipment's adaptability and grading accuracy. It is especially suitable for polymer material processing scenarios that require multi-stage particle size control.

[0022] Please see Figure 1 The main component 1 also includes: An air inlet channel 12 is fixedly connected to the side of the processing cylinder 11; The air inlet channel 12 is connected to the inside of the processing cylinder 11; A vortex fan 121 is fixedly installed in the middle of the air inlet duct 12; A vortex blower 121 is introduced to work in conjunction with the sweeping assembly 4. The vortex blower 121 generates an upward airflow through the air inlet channel 12, and fine particles are collected by the airflow through the discharge slot 131 of the annular chamber 13. The sweeping plate 421 of the sweeping assembly 4 rotates under the drive of the turntable 42, continuously crushing and sweeping outwards coarse particles that have not passed through the screen holes, preventing accumulation. This design combines airflow classification and mechanical sweeping, significantly improving screening efficiency and separation accuracy.

[0023] The vortex fan 121 can deliver air into the processing cylinder 11 through the air inlet channel 12.

[0024] Please see Figure 1 The main component 1 also includes: The annular chamber 13 is fixedly connected to the top of the processing cylinder 11; Discharge channel 131 is provided on the side of the annular compartment 13; The discharge trough 131 is connected to the annular chamber 13 and the processing cylinder 11; Fine materials can be collected through the discharge channel 131.

[0025] Please see Figure 1 The main component 1 also includes: A collection trough 14 is formed through the bottom of the processing cylinder 11; Coarse materials can be collected through the collection tank 14.

[0026] Please see Figure 3 The screening component 2 also includes: A support plate 22 is fixedly connected to the bottom of the screening cylinder 21.

[0027] Please see Figure 4 Adjustment component 3 includes: The first motor 31 is fixedly installed inside the processing cylinder 11; The first rotating shaft 311 is fixedly connected to the output end of the first motor 31; Gear disk 312 is fixedly connected to the lower end of the first rotating shaft 311.

[0028] Adjustment component 3 also includes: An inner rotating cylinder 32 is installed inside the screening cylinder 21; The ball bearings 324 are rotatably connected to the outer side of the inner rotating cylinder 32 in a ring shape; The ball bearing 324 is in contact with the inner side of the screening cylinder 21; The inner rotating cylinder 32 is rotatably connected to the inside of the screening cylinder 21 via ball bearings 324; Rubber rings 323 are fixedly connected to the upper and lower outer sides of the inner rotating cylinder 32; The second sieve hole 321 is opened in a ring around the inner rotating cylinder 32.

[0029] The aforementioned adjustment component 3 also includes: The toothed groove group 322 is distributed in a ring on the outer side of the inner rotating cylinder 32; The toothed groove assembly 322 is in contact with the toothed disc 312 and is in a meshing rotatable connection; This design allows for adjustment of the overlap between the apertures of the second sieve aperture 321 and the first sieve aperture 211.

[0030] Please see Figure 4 The sweeping component 4 includes: The second motor 41 is fixedly installed at the bottom of the support plate 22; The second rotating shaft 411 is fixedly connected to the output end of the second motor 41; Turntable 42 is fixedly connected to the top of the second rotating shaft 411.

[0031] The sweeping assembly 4 also includes: A sweeping plate 421 is fixedly connected to the top of the turntable 42 in a ring shape; The material inside the support plate 22 can be crushed by the sweeping plate 421 and swept outward from the first screen hole 211.

[0032] Working principle: First, the raw material to be crushed and screened is placed in the support plate 22. Then, according to the current screening fineness requirements, the first motor 31 is started to drive the first rotating shaft 311 and the toothed disc 312 to rotate. Under the meshing action of the toothed disc 312 and the toothed groove group 322, the inner rotating cylinder 32 located inside the toothed groove group 322 will rotate synchronously. This design can adjust the overlap between the toothed groove group 322 and the first screen hole 211, thereby controlling the fineness of the output. Then, the second motor 41 is started to drive the second rotating shaft 411 to rotate. At this time, the turntable 42 and the sweeping plate 421 located on the top of the second rotating shaft 411 will rotate synchronously. The support plate 22 can be crushed by the sweeping plate 421. When the material repeatedly contacts the sweeping plate 421 for crushing until the particle size is smaller than the overlapping aperture between the first sieve hole 211 and the second sieve hole 321, the raw material particles can be swept outward from between the second sieve hole 321 and the first sieve hole 211 by the sweeping plate 421. Specifically, the vortex fan 121 is activated to generate a rotating upward air column, which causes the fine particles to float upward and flow into the discharge trough 131 through the annular chamber 13 to complete the collection. The coarse particles fall under their own gravity and are collected through the collection tank 14.

[0033] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A vortex classifying and screening structure for a resin raw material pulverizer, comprising a main component (1), characterized in that: The main component (1) includes a processing cylinder (11); Screening assembly (2) is located in the middle of the processing cylinder (11); The screening assembly (2) includes a screening cylinder (21) and a first screen hole (211) that is annularly opened around the entire body of the screening cylinder (21). The screening cylinder (21) is fixedly connected to the inner wall of the processing cylinder (11); An adjusting component (3) is installed inside the screening cylinder (21) to control the size of the sieve aperture. A material sweeping assembly (4) is installed inside the processing cylinder (11) below the screening cylinder (21) and is used to sweep the raw material outward through the first sieve hole (211).

2. The vortex classifying and screening structure of a resin raw material pulverizer according to claim 1, characterized in that, The main component (1) also includes: An air inlet channel (12) is fixedly connected to the side of the processing cylinder (11); The air inlet channel (12) is connected to the inside of the processing cylinder (11); A vortex fan (121) is fixedly installed in the middle of the air inlet channel (12).

3. The vortex classifying and screening structure of a resin raw material pulverizer according to claim 1, characterized in that, The main component (1) also includes: The annular chamber (13) is fixedly connected to the top of the processing cylinder (11); Discharge slots (131) are provided on the side of the annular compartment (13); The discharge trough (131) is connected to the annular chamber (13) and the processing cylinder (11).

4. The vortex classifying and screening structure of a resin raw material pulverizer according to claim 1, characterized in that, The main component (1) also includes: A collection trough (14) is formed through the bottom of the processing cylinder (11).

5. The vortex classifying and screening structure of a resin raw material pulverizer according to claim 1, characterized in that, The screening component (2) further includes: A support plate (22) is fixedly connected to the bottom of the screening cylinder (21).

6. The vortex classifying and screening structure of a resin raw material pulverizer according to claim 1, characterized in that, The adjustment component (3) includes: A first motor (31) is fixedly installed inside the processing cylinder (11); The first rotating shaft (311) is fixedly connected to the output end of the first motor (31). A gear disk (312) is fixedly connected to the lower end of the first rotating shaft (311).

7. The vortex classifying and screening structure of a resin raw material pulverizer according to claim 6, characterized in that, The adjustment component (3) further includes: The inner rotating cylinder (32) is disposed inside the screening cylinder (21); The ball bearings (324) are rotatably connected to the outside of the inner rotating cylinder (32) in a ring shape; The ball bearing (324) is in contact with the inner side of the screening cylinder (21); The inner rotating cylinder (32) is rotatably connected to the inside of the screening cylinder (21) via ball bearings (324); Rubber rings (323) are fixedly connected to the upper and lower outer sides of the inner rotating cylinder (32); The second sieve hole (321) is opened in a ring around the entire body of the inner rotating cylinder (32).

8. The vortex classifying and screening structure of a resin raw material pulverizer according to claim 7, characterized in that, The adjustment component (3) further includes: The toothed groove group (322) is distributed in a ring on the outside of the inner rotating cylinder (32); The tooth groove group (322) is in contact with the toothed disc (312) and is in a meshing rotational connection.

9. The vortex classifying and screening structure of a resin raw material pulverizer according to claim 5, characterized in that, The sweeping assembly (4) includes: A second motor (41) is fixedly installed at the bottom of the support plate (22); The second rotating shaft (411) is fixedly connected to the output end of the second motor (41). A turntable (42) is fixedly connected to the top of the second rotating shaft (411).

10. The vortex classifying and screening structure of a resin raw material pulverizer according to claim 9, characterized in that, The sweeping assembly (4) also includes: The sweeping plate (421) is fixedly connected in a ring to the top of the turntable (42).

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