Vibrating screen for plastic additive master batch processing

Abstract

The utility model belongs to the technical field of vibrating screens, and particularly relates to a vibrating screen for plastic additive master batch processing, which comprises a screen frame with an upper opening and a lower opening, a screen mesh arranged at the bottom of the screen frame, a speed reduction component arranged in the screen frame and matched with the screen mesh, a screen drum arranged at the bottom of the screen frame, and a conical plate arranged on the inner side of the bottom of the screen drum. A vibrating frame is arranged at the bottom of the screen drum, a vibrating motor is arranged on the vibrating frame, a plurality of springs are arranged at the bottom of the vibrating frame, a support is arranged at the bottom end of each spring, and a base is arranged at the bottom end of each support. A first output channel connected with the interior is arranged on one side of the screen frame, and a second output channel connected with the interior is arranged on one side of the screen drum. Compared with the prior art, the vibrating screen has the advantages that the speed reducing assembly is arranged, under the condition that high-frequency output of the vibrating motor is guaranteed, the speed of materials diffusing from the center to the periphery is greatly reduced, the screening time of the materials is prolonged, and therefore the screening precision is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of vibrating screens, in particular to a vibrating screen used for processing plastic additive masterbatch. Background Art

[0002] With the development of vibration motor technology, the performance of vibration screens has also been enhanced, making their screening efficiency continuously improved. Although efficient screening can increase production capacity, for special materials with screening accuracy requirements, too fast screening efficiency will lead to incomplete screening. The material has not been completely screened after entering the vibration screen, but has already completed the screening process, so that the screened material needs to be screened twice or even three times; currently, the screening operation of plastic additive masterbatch requires two screenings before it can be used, which reduces the final production capacity. Therefore, there is a certain market demand for designing a high-precision vibration screen for plastic additive masterbatch processing. Summary of the invention

[0003] In view of the above-mentioned deficiencies in the prior art, the utility model provides a high-precision vibrating screen for processing plastic additive masterbatch to solve the above-mentioned problems.

[0004] The utility model discloses a vibrating screen for processing plastic additive masterbatch, comprising a screen frame with upper and lower openings, a screen mesh being arranged at the bottom of the screen frame, a deceleration assembly cooperating with the screen mesh being arranged in the screen frame, a screen cylinder being arranged at the bottom of the screen frame, a conical plate being arranged at the inner side of the bottom of the screen cylinder, a vibration frame being arranged at the bottom of the screen cylinder, a vibration motor being arranged on the vibration frame, a plurality of springs being arranged at the bottom of the vibration frame, a bracket being arranged at the bottom end of each of the springs, and a base being arranged at the bottom end of the bracket; a first output channel connected to the interior is arranged at one side of the screen frame, and a second output channel connected to the interior is arranged at one side of the screen cylinder.

[0005] Furthermore, the deceleration assembly includes an inner ring frame, the outer ring of the inner ring frame is provided with an outer ring frame, a connecting rod is arranged between the inner ring frame and the outer ring frame, the bottom of the inner ring frame is provided with a plurality of first-level baffles extending downward in an axially rotating array, the bottom of the outer ring frame is provided with a plurality of second-level baffles staggered with the first-level baffles in an axially rotating array, the bottoms of the second-level baffles and the first-level baffles both abut against the screen; the outer ring frame is provided with a circle of outwardly extending fixed frames, the screen frame is provided with a slot cooperating with the fixed frame, and a locking portion is provided between the slot and the fixed frame.

[0006] Furthermore, the outer end of the primary baffle is inclined counterclockwise, and the inner end of the secondary baffle is inclined counterclockwise.

[0007] Furthermore, a three-stage baffle extending downward is provided on the top of each of the fixing frames, and a protruding height of the three-stage baffle is smaller than that of the first-stage baffle.

[0008] Furthermore, the inner side of the three-stage baffle is provided with a chamfer.

[0009] Furthermore, a conical top cover is arranged on the top of the screen frame, a threaded connection is arranged between the top cover and the screen frame, and a feed port with a diameter smaller than that of the inner ring frame is opened on the top cover.

[0010] Furthermore, a hopper cooperating with the feed port is arranged on the top cover, and a threaded connection is arranged between the hopper and the feed port.

[0011] Compared with the prior art, the vibration screen greatly reduces the speed of material diffusion from the center to the surroundings by setting up a deceleration component while ensuring the high-frequency output of the vibration motor, thereby increasing the screening time of the material and improving the screening accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0013] Figure 2 It is a front cross-sectional view of the utility model;

[0014] Figure 3 This is a top view of the utility model after removing the top cover;

[0015] Figure 4 for Figure 3 A magnified view of detail A;

[0016] Figure 5 It is a schematic diagram of the structure of the reduction component.

[0017] In the figure: 1. screen frame; 2. screen mesh; 3. screen cylinder; 4. conical plate; 5. vibration frame; 6. vibration motor; 7. spring; 8. bracket; 9. base; 10. first output channel; 11. second output channel; 12. inner ring frame; 13. outer ring frame; 14. connecting rod; 15. primary baffle; 16. secondary baffle; 17. fixing frame; 18. locking part; 19. tertiary baffle; 20. top cover; 21. hopper; 22. reduction assembly; 23. slot. DETAILED DESCRIPTION

[0018] In order to better understand the present invention, Figures 1 to 5 The implementation modes of the present utility model will be explained in detail.

[0019] It should be noted that the directions "front, back, left, right, up, down" mentioned in the text are all based on Figure 1 The directions of “front, back, left, right, up, and down” are used as the basis.

[0020] See also Figures 1 to 5 The utility model discloses a vibrating screen for processing plastic additive masterbatch, comprising a circular screen frame 1, the screen frame 1 is opened at the top and the bottom, a layer of screen mesh 2 is arranged at the bottom of the screen frame 1, a deceleration component 22 matched with the screen mesh 2 is arranged in the screen frame 1, and the deceleration component 22 slows down the diffusion speed of the material diffusing from the middle to the surrounding; a screen cylinder 3 is arranged at the bottom of the screen frame 1, a conical plate 4 is arranged at the inner side of the bottom of the screen cylinder 3, a vibration frame 5 is arranged at the bottom of the screen cylinder 3, a vibration motor 6 is arranged on the vibration frame 5, a plurality of springs 7 are arranged at the bottom of the vibration frame 5, a bracket 8 is arranged at the bottom end of each of the springs 7, and a base 9 is arranged at the bottom end of the bracket 8; a first output channel 10 connected to the inside is arranged on one side of the screen frame 1, and the first output channel 10 is used to output the coarse material in the screen frame 1, and a second output channel 11 connected to the inside is arranged on one side of the screen cylinder 3, and the second output channel 11 is used to output the fine material sieved out of the screen cylinder 3.

[0021] The preferred technical solution in this embodiment is as follows Figure 3 and Figure 5 As shown in, the deceleration assembly 22 includes an inner ring frame 12, an outer ring frame 13 is provided on the outer ring of the inner ring frame 12, a connecting rod 14 is arranged between the inner ring frame 12 and the outer ring frame 13, a plurality of first-level baffles 15 extending downward are arranged in an axial rotation array at the bottom of the inner ring frame 12, a plurality of second-level baffles 16 staggered with the first-level baffles 15 are arranged in an axial rotation array at the bottom of the outer ring frame 13, and the bottoms of the second-level baffles 16 and the first-level baffles 15 are both in contact with the screen 2; a circle of outwardly extending fixing frames 17 is arranged on the outer ring frame 13, a slot 23 cooperating with the fixing frame 17 is arranged on the screen frame 1, and a locking portion 18 is arranged between the slot 23 and the fixing frame 17.

[0022] When the material is poured from the top of the screen frame 1 into the center of the screen 2, the material is vibrated and diffuses outward from the center. During this period, the material first contacts the primary baffle 15 and is blocked and decelerated. Then, the secondary baffle 16 blocks the material diffusing outward from the gap of the primary baffle 15, thereby achieving secondary deceleration.

[0023] The preferred technical solution in this embodiment is as follows Figure 2 and Figure 4 As shown in the figure, the locking portion 18 is a screw, the outer end of the fixing frame 17 is provided with a screw through hole, the card slot 23 is a step groove, and a threaded hole corresponding to the screw through hole is provided in the step groove. The screw passes through the screw through hole and is tightened in the threaded hole, and the fixing frame 17 and the screen frame 1 are locked by the screw.

[0024] The preferred technical solution in this embodiment is as follows Figure 3 As shown in the figure, the outer end of the primary baffle 15 is inclined counterclockwise, and the inner end of the secondary baffle 16 is inclined counterclockwise; through the cooperation between the primary baffle 15 and the secondary baffle 16, the material diffusing outward from the gap of the primary baffle 15 is blocked by the secondary baffle 16, thereby achieving deceleration.

[0025] The preferred technical solution in this embodiment is as follows Figure 2 and Figure 5 As shown in , the top of the fixing frame 17 is provided with a three-stage baffle 19 extending downward, such as Figure 2 As shown in , the extended height of the tertiary baffle 19 is smaller than that of the primary baffle 15 .

[0026] The preferred technical solution in this embodiment is as follows Figure 2 and Figure 5 As shown in , the inner side of the three-stage baffle 19 is provided with a chamfer. By providing the chamfer as a transition zone, the inner side of the bottom of the three-stage baffle 19 is higher than the outer side, so that the material gradually slows down when diffusing from the inside to the outside.

[0027] The preferred technical solution in this embodiment is to prevent the material from being vibrated out of the screen frame 1 during vibration screening. Figure 2 As shown in , a conical top cover 20 is provided on the top of the screen frame 1 , a threaded connection is provided between the top cover 20 and the screen frame 1 , and a feed port with a diameter smaller than that of the inner ring frame 12 is opened on the top cover 20 .

[0028] The preferred technical solution in this embodiment takes into account that it is inconvenient to add materials after the top cover 20 is installed. Figure 2 As shown in general, the top cover 20 is provided with a hopper 21 matched with the feed port, and a threaded connection is provided between the hopper 21 and the feed port.

[0029] The use and principle of the utility model are as follows: first, the vibration motor 6 is turned on; then, the material is poured into the screen frame 1 through the hopper 21, so that the material falls into the center of the screen 2; when the material is vibrated, it begins to diffuse outward from the center, and during the diffusion period, the material first contacts the primary baffle 15 and is then blocked and decelerated. As the vibration continues, the material that passes through the gap of the primary baffle 15 and diffuses outward is blocked by the secondary baffle 16, thereby achieving secondary deceleration. Then, the material that passes through the gap of the secondary baffle 16 continues to diffuse toward the inner wall of the screen frame 1, and during this period, it is affected by the third baffle 19, which limits the vibration height of the material, thereby causing these materials to be decelerated by three levels, slowing down the speed of reaching the first output channel 10, and achieving a higher precision screening effect by increasing the residence time of the material on the screen 2; finally, the material after the third level of deceleration is discharged from the first output channel 10, and the screened fine material falls on the conical plate 4 of the screen drum 3, diffuses outward, and is discharged through the second output channel 11.

[0030] In the description of the present utility model, it should be understood that the terms "longitudinal", "lateral", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In the description of the present utility model, unless otherwise specified and limited, it should be noted that the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it can be a mechanical connection or an electrical connection, or it can be the internal communication of two elements, it can be a direct connection, or it can be an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0031] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A vibrating screen for processing plastic additive masterbatch, characterized by: The invention comprises a screen frame (1) with upper and lower openings, a screen (2) being arranged at the bottom of the screen frame (1), a speed reducing assembly (22) cooperating with the screen (2) being arranged inside the screen frame (1), a screen drum (3) being arranged at the bottom of the screen frame (1), a conical plate (4) being arranged on the inner side of the bottom of the screen drum (3), a vibration frame (5) being arranged at the bottom of the screen drum (3), a vibration motor (6) being arranged on the vibration frame (5), a plurality of springs (7) being arranged at the bottom of each of the springs (7), a bracket (8) being arranged at the bottom end of each of the brackets (8), and a base (9) being arranged at the bottom end of each of the brackets (8); a first output channel (10) connected to the interior is arranged at one side of the screen frame (1), and a second output channel (11) connected to the interior is arranged at one side of the screen drum (3).

2. A vibrating screen for processing plastic additive masterbatch as claimed in claim 1, characterized in that: The deceleration assembly (22) comprises an inner ring frame (12), an outer ring frame (13) is arranged on the outer ring of the inner ring frame (12), a connecting rod (14) is arranged between the inner ring frame (12) and the outer ring frame (13) for connection, a plurality of first-level baffles (15) extending downwards are arranged in an axial rotation array at the bottom of the inner ring frame (12), a plurality of second-level baffles (16) staggered with the first-level baffles (15) are arranged in an axial rotation array at the bottom of the outer ring frame (13), the bottoms of the second-level baffles (16) and the first-level baffles (15) both abut against the screen (2); a circle of outwardly extending fixing frames (17) is arranged on the outer ring frame (13), a slot (23) cooperating with the fixing frames (17) is arranged on the screen frame (1), and a locking portion (18) is arranged between the slot (23) and the fixing frames (17).

3. A vibrating screen for processing plastic additive masterbatch as claimed in claim 2, characterized in that: The outer end of the primary baffle (15) is inclined counterclockwise, and the inner end of the secondary baffle (16) is inclined counterclockwise.

4. A vibrating screen for processing plastic additive masterbatch as claimed in claim 2, characterized in that: The top of the fixing frame (17) is provided with a three-stage baffle (19) extending downwards, and the extension height of the three-stage baffle (19) is smaller than that of the first-stage baffle (15).

5. A vibrating screen for processing plastic additive masterbatch as claimed in claim 4, characterized in that: The inner side of the third-stage baffle (19) is provided with a chamfer.

6. A vibrating screen for processing plastic additive masterbatch as claimed in claim 2, characterized in that: A conical top cover (20) is provided on the top of the screen frame (1), a threaded connection is provided between the top cover (20) and the screen frame (1), and a feed port with a diameter smaller than that of the inner ring frame (12) is provided on the top cover (20).

7. A vibrating screen for processing plastic additive masterbatch as claimed in claim 6, characterized in that: The top cover (20) is provided with a hopper (21) matched with the feed port, and a threaded connection is provided between the hopper (21) and the feed port.

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