Screening device for granulator
By using a double-layer screen design and a rotating screw mixer, the problems of insufficient screening accuracy and clogging in traditional granulator screening devices have been solved, thereby improving the uniformity of masterbatch particle size and screening efficiency.
Patent Information
- Application Number
- CN202520465738.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-18
- Publication Date
- 2026-01-30
- Estimated Expiration
- 2035-03-18
AI Technical Summary
Traditional granulator screening devices lack sufficient screening precision, resulting in uneven masterbatch particle size, easy clogging, affecting the quality of plastic products, and the presence of agglomerates or large particle impurities.
The design employs a double-layer screen, including a second screen and a third screen. The masterbatch is stirred by a rotating screw to prevent clogging. It undergoes preliminary screening through the first and second screen openings, and further graded screening through the second screen opening to improve particle size uniformity.
It effectively prevents masterbatch feeding blockage, improves screening accuracy and particle size uniformity, enhances masterbatch quality, prevents screen hole blockage, and improves screening efficiency.
Smart Images
Figure CN223849701U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of master batch screening, especially relates to a screening device for granulator. BACKGROUND
[0002] The master batch is a kind of high-performance plastic product raw material, and it has higher requirements on its purity and particle size distribution;However, when screening the master batch, the traditional granulator screening device has the problem of insufficient screening precision, often cannot effectively distinguish different particle sizes in the master batch, resulting in uneven particle size of the final product, affecting the quality and performance of plastic products, and being easy to block, some agglomerated or large particle impurities may exist in the master batch, which can easily block the screen holes during the screening process, reducing the screening efficiency. UTILITY MODEL CONTENT
[0003] The utility model provides a screening device for granulator, solves the existing problem.
[0004] In order to realize the above-mentioned purpose, the utility model adopts the following technical scheme: a screening device for granulator, including support, the inside of support upper end is connected with feeding mechanism, and the feeding mechanism is screw rotation structure, the feeding mechanism is used for conveying to be screened master batch, the lower part of feeding mechanism is provided with sieve box, and the inside of sieve box is provided with telescopic movement structure, the lower part of sieve box is connected with screening mechanism, and the screening mechanism includes outer box, second screen cloth and third screen cloth, second screen cloth and third screen cloth are connected in inclined mode between upper and lower, and second screen cloth and third screen cloth are used to classify and screen master batch.
[0005] Preferably, the upper end of the support is connected with a rectangular frame on one side, and a circular notch is provided in the interior of the rectangular frame, and the interior of the circular notch is connected with a feeding mechanism.
[0006] Preferably, the feeding mechanism includes a cylindrical barrel, a cover plate is connected to the upper end of the cylindrical barrel, hoppers are symmetrically provided on both sides of the upper end of the cover plate, a motor is connected to the middle of the cover plate, and a rotating screw rod is connected to the lower end of the motor.
[0007] Preferably, the sieve box is a rectangular frame structure, a circular notch is formed in the upper end of the sieve box, and the circular notch corresponds to the lower end of the cylindrical barrel, sliding grooves are connected to both sides of the interior of the sieve box, protrusions are connected to the interior of the sliding grooves, the sliding grooves and the protrusions are matched and clamped with each other, the protrusions are connected to sieve frames on one side, first screen cloths are connected to the interior of the sieve frames, connecting columns are connected to one side of the sieve frames, push rods are connected to the outer ends of the connecting columns, and the push rods are connected to push cylinders on one end.
[0008] Preferably, the outer box lower end is connected with a conical angle, and the four corners of the conical angle are connected with a square groove, and the square groove is connected with a vertical rod inside, the second screen mesh is provided with a plurality of first screen holes inside, and the third screen mesh is provided with a plurality of second screen holes inside.
[0009] Preferably, the first screen hole diameter is larger than the second screen hole, square holes are arranged on both sides of the outer box, the two square holes are respectively corresponding to the lower ends of the second screen mesh and the third screen mesh, the square holes are connected with electric sliding rails on both sides, the electric sliding rails are connected with sliding blocks outside, and the sliding blocks are connected with baffles on one side.
[0010] Preferably, a plurality of connecting springs are connected with the second screen mesh and the third screen mesh at equal intervals on both sides, the connecting springs are connected with connecting plates away from the second screen mesh and the third screen mesh on one side, and the connecting plates are connected with vibration machines on one side respectively.
[0011] The beneficial effects of the utility model are that: through the rotation stirring of the rotating screw, the master batch is steadily and uniformly led into the screen box, and effectively prevents the blockage of the master batch during discharging; after the larger impurities and agglomerates of particle size are preliminarily screened through the second screen mesh, the third screen mesh is used for further screening, the screening particle size uniformity of the master batch is improved, the design of the double-layer screen mesh can grade the master batch, and the screening precision is improved. BRIEF DESCRIPTION OF DRAWINGS
[0012] Figure 1 It is the structural schematic diagram of the utility model.
[0013] Figure 2 It is the schematic diagram of the feeding mechanism of the utility model.
[0014] Figure 3 It is the schematic diagram of the screen box of the utility model.
[0015] Figure 4 It is the schematic diagram of the screening mechanism of the utility model.
[0016] Figure 5 It is the schematic diagram of the screening mechanism of the utility model. Figure 4 It is the enlarged schematic diagram of A of the utility model.
[0017] Figure 6 It is the schematic diagram of the screening mechanism of the utility model.
[0018] The figure label: 1, support; 2, feeding mechanism; 201, barrel; 202, cover plate; 203, hopper; 204, motor; 205, rotating screw; 3, sieve box; 301, chute; 302, protruding block; 303, sieve frame; 304, first screen; 305, connecting column; 306, push rod; 307, push cylinder; 4, screening mechanism; 401, outer box; 402, second screen; 403, third screen; 404, first screen hole; 405, second screen hole; 406, vertical rod; 407, electric sliding rail; 408, sliding block; 409, baffle; 410, connecting spring; 411, connecting plate; 412, vibrating machine. DETAILED DESCRIPTION
[0019] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments.
[0020] Referring to Figures 1-6 A screening device for a granulator, comprising a support 1, a feeding mechanism 2 is connected to the inner upper end of the support 1, and the feeding mechanism 2 is a screw rotating structure, the feeding mechanism 2 is used for conveying the to-be-screened master batch, a sieve box 3 is arranged below the feeding mechanism 2, and an extension and retraction structure is arranged in the sieve box 3, a screening mechanism 4 is connected to the lower end of the sieve box 3, and the screening mechanism 4 comprises an outer box 401, a second screen 402 and a third screen 403, the second screen 402 and the third screen 403 are connected in an inclined manner from top to bottom, and the second screen 402 and the third screen 403 are used for grading and screening the master batch.
[0021] Referring to Figure 2 A rectangular frame is connected to one side of the upper end of the support 1, a circular notch is arranged in the rectangular frame, and the feeding mechanism 2 is connected to the circular notch, the feeding mechanism 2 comprises a barrel 201, a cover plate 202 is connected to the upper end of the barrel 201, a hopper 203 is symmetrically arranged on both sides of the upper end of the cover plate 202, a motor 204 is connected to the middle of the cover plate 202, and a rotating screw 205 is connected to the lower end of the motor 204, the barrel 201 is used for master batch conveying through the hopper 203, the rotating screw 205 is rotated, the master batch is stirred through the rotation of the rotating screw 205, and the master batch is prevented from being blocked when falling.
[0022] Referring to Figure 3The sieve box 3 is a rectangular frame structure, a circular notch is formed at the upper end of the sieve box 3, and the circular notch corresponds to the lower end of the barrel 201, slide grooves 301 are connected to the two sides in the sieve box 3, and protrusions 302 are connected inside the slide grooves 301, the slide grooves 301 and the protrusions 302 are matched and clamped with each other, sieve frames 303 are connected to one side of the protrusions 302, first sieve nets 304 are connected inside the sieve frames 303, connecting columns 305 are connected to one side of the sieve frames 303, push rods 306 are connected to the outer ends of the connecting columns 305, push cylinders 307 are connected to one end of the push rods 306, the push cylinders 307 are constantly telescopic to push the push rods 306, the push rods 306 drive the sieve frames 303 to move back and forth quickly through the connecting columns 305, and the first sieve nets 304 are matched, so that the master batch can enter the screening mechanism 4 stably and uniformly.
[0023] Referring to Figure 4 , Figure 5 The outer box 401 is connected with a conical corner at the lower end, square grooves are connected at the four corners of the conical corner, vertical rods 406 are connected inside the square grooves, a plurality of first sieve holes 404 are formed inside the second sieve net 402, a plurality of second sieve holes 405 are formed inside the third sieve net 403, the diameter of the first sieve hole 404 is greater than that of the second sieve hole 405, square holes are formed at the two sides of the outer box 401, the two square holes correspond to the lower ends of the second sieve net 402 and the third sieve net 403 respectively, electric sliding rails 407 are connected at the two sides of the square holes, sliding blocks 408 are connected to the outer sides of the electric sliding rails 407, baffle plates 409 are connected to one side of the sliding blocks 408, a plurality of connecting springs 410 are connected at equal intervals at the two sides of the second sieve net 402 and the third sieve net 403, connecting plates 411 are connected to one side of the connecting springs 410 away from the second sieve net 402 and the third sieve net 403, vibration machines 412 are connected to one side of the connecting plates 411 respectively, the first sieve holes 404 in the second sieve net 402 are used to preliminarily screen out impurities and agglomerates with large particle sizes, the second sieve holes 405 in the third sieve net 403 are used to further improve the particle size uniformity of the master batch, the master batch is classified and screened, and the screening precision is improved.
[0024] Working principle: first, through the support 1 is connected to the barrel 201 above the sieve box 3, through the hopper 203 into the barrel 201, start the motor 204 rotating screw 205, through the rotating screw 205 rotation of the masterbatch stirring, let the masterbatch uniform down, down the masterbatch on the first screen 304, start push cylinder 307, push rod 306 to retract, push rod 306 through the column 305 drive sieve frame 303 to move back and forth quickly vibration, so that the masterbatch can be uniformly into the box 401, fall to the second screen 402, through the second screen 402 in the first screen hole 404 preliminary screening out the larger size of the impurities and agglomerates, then through the third screen 403 in the second screen hole 405 further improve the masterbatch particle size uniformity, masterbatch grading, will be qualified masterbatch through the box 401 below discharge, screening is completed, can start the electric slide rail 407 drive slider 408 up and down, slider 408 drive baffle 409 movement will be larger than the particle size of the impurities and agglomerates discharge.
[0025] The above description is only the preferred embodiment of the present application, but the protection scope of the present application is not limited to this, any skilled person in the art within the technical range disclosed by the present application, according to the technical scheme and the utility model concept of the present application, equivalent replacement or change, should be covered in the protection scope of the present application.
Claims
1. A screening device for a granulator comprising a support (1), characterized in that, The upper end of the support (1) is internally connected with a feeding mechanism (2), and the feeding mechanism (2) is a screw rotating structure, the feeding mechanism (2) is used for conveying the master batch to be screened, a sieve box (3) is arranged below the feeding mechanism (2), and the sieve box (3) is internally provided with a telescopic moving structure, a screening mechanism (4) is connected below the sieve box (3), and the screening mechanism (4) comprises an outer box (401), a second sieve screen (402) and a third sieve screen (403), the second sieve screen (402) and the third sieve screen (403) are connected in an inclined manner from top to bottom, and the second sieve screen (402) and the third sieve screen (403) are used for grading and screening the master batch.
2. A screening device for a granulator according to claim 1, characterized in that The upper end of the support (1) is connected with a rectangular frame on one side, and the rectangular frame is internally provided with a circular notch, and the circular notch is internally connected with a feeding mechanism (2).
3. A screening device for a granulator according to claim 1, characterized in that The feeding mechanism (2) comprises a barrel (201), the upper end of the barrel (201) is connected with a cover plate (202), the two sides of the upper end of the cover plate (202) are symmetrically provided with hoppers (203), the middle of the cover plate (202) is connected with a motor (204), and the lower end of the motor (204) is connected with a rotating screw (205).
4. A screening device for a granulator according to claim 1, characterized in that The sieve box (3) is a rectangular frame structure, a circular notch is formed in the upper end of the sieve box (3), and the circular notch corresponds to the lower end of the barrel (201), slide grooves (301) are connected on the two sides of the sieve box (3), and protruding blocks (302) are connected in the slide grooves (301), the slide grooves (301) and the protruding blocks (302) are matched and clamped with each other, the protruding blocks (302) are connected with sieve frames (303) on one side, the sieve frames (303) are internally connected with first sieve screens (304), the sieve frames (303) are connected with connecting columns (305) on one side, the connecting columns (305) are connected with push rods (306) at outer ends, and the push rods (306) are connected with push cylinders (307) at one end.
5. A screening device for a granulator according to claim 1, characterized in that The lower end of the outer box (401) is connected with a conical angle, square grooves are formed at four corners of the conical angle and are internally connected with vertical rods (406), a plurality of first sieve holes (404) are formed in the second sieve screen (402), and a plurality of second sieve holes (405) are formed in the third sieve screen (403).
6. A screening device for a granulator according to claim 5, characterized in that The first sieve holes (404) are larger in diameter than the second sieve holes (405), square holes are formed in the two sides of the outer box (401), the two square holes correspond to the lower ends of the second sieve screen (402) and the third sieve screen (403) respectively, and the two sides of the square holes are connected with electric sliding rails (407), the electric sliding rails (407) are connected with sliding blocks (408) at outer sides, and the sliding blocks (408) are connected with baffle plates (409) on one side.
7. A screening device for a granulator according to claim 6, characterized in that A plurality of connecting springs (410) are connected at equal intervals on the two sides of the second sieve screen (402) and the third sieve screen (403), the connecting springs (410) are connected with connecting plates (411) away from the second sieve screen (402) and the third sieve screen (403) on one side, and the connecting plates (411) are connected with vibration machines (412) on one side and above and below respectively.