Discharging and distributing device of PVC powder vibrating screen

Abstract

The utility model discloses a PVC powder vibrating screen blanking distribution device which comprises a shell, a vibrating screen upper cover, a distributor and the like. A vibrating screen upper cover is arranged at the top of the shell, material holes are formed in one side of the top of the vibrating screen upper cover, a discharging opening is formed in the bottom of the shell, and distributors are arranged in the shell and correspond to the material holes respectively. The vibrating screen effectively solves the problems that due to blanking impact, a screen is damaged, materials are distributed unevenly and the like in an existing vibrating screen, the materials can be distributed evenly to meet different production requirements, meanwhile, the screen protection performance can be remarkably improved, the service life of equipment is prolonged, and the maintenance cost is reduced.

Description

Technical Field

[0001] This utility model relates to a powder vibrating screen, and more particularly to a PVC powder vibrating screen feeding distribution device. Background Technology

[0002] In the PVC powder processing industry, vibrating screens are the core equipment for achieving accurate screening and grading of materials, and their operating efficiency directly affects product quality and production efficiency. Currently, the feeding structure of PVC powder vibrating screens at home and abroad mostly adopts a free feeding and free distribution mode. This traditional design is widely used in industrial production due to its advantages of simple structure and low cost.

[0003] However, with the increasing demand for refined production, the limitations of traditional feeding methods have become increasingly apparent. When a large amount of PVC powder is fed into the screen, due to the lack of a buffer structure, the screen not only has to withstand an impact force far exceeding the design load, but also suffers from uneven screening force due to uneven material distribution, which in turn leads to local stress concentration. This accelerates the fatigue wear of the screen, causing frequent breakage of the screen at the feeding port, shortening the service life of the equipment, increasing equipment maintenance costs, and making it less practical. Summary of the Invention

[0004] The main purpose of this utility model is to provide a PVC powder vibrating screen feeding distribution device to overcome the shortcomings of the prior art.

[0005] To achieve the above-mentioned objectives, this utility model provides the following technical solution.

[0006] Some embodiments of this utility model provide a PVC powder vibrating screen feeding distribution device, including a housing, a vibrating screen cover and a distributor;

[0007] The vibrating screen cover is located on the top of the housing, and a material hole is opened on one side of the top of the vibrating screen cover. A discharge port is provided at the bottom of the housing. The distributor is located inside the housing and is respectively corresponding to the material hole.

[0008] The distributor includes a distribution plate that is directly opposite a set of feed holes, and both ends of the distribution plate are connected to the housing via height adjustment components.

[0009] In one embodiment, the top surface of the distribution plate is symmetrically provided with fine distribution holes, a first coarse distribution elongated hole, and a second coarse distribution elongated hole from the inside out.

[0010] In one embodiment, the height adjustment component includes a screw, and a sliding groove is symmetrically provided on one side of the inner wall of the housing. The screw is rotatably installed in the sliding groove, and the upper end of the screw passes through the upper cover of the vibrating screen. A slider is threadedly connected to the outer wall of the screw. The slider is slidably installed in the sliding groove. One end of the slider is fixedly connected to one end of the distribution plate. A telescopic rod is symmetrically provided in the middle part of the distribution plate, and the upper end of the telescopic rod is fixedly connected to the upper cover of the vibrating screen.

[0011] In one embodiment, baffles are fixedly installed on both sides of the slider, and the baffles are disposed in the groove near the distribution plate.

[0012] In one embodiment, reinforcing edges are fixedly installed on both sides of the distribution plate, and the reinforcing edges are fixedly connected to the telescopic end of the telescopic rod.

[0013] In one embodiment, the distribution plate is arranged in an inverted V shape, and the included angle of the inner side is 110-130°, preferably 120°.

[0014] In one embodiment, the upper end of the screw is provided with multiple anti-slip patterns, which are arranged in a circumferentially equidistant array.

[0015] In one embodiment, the inner wall of the chute is symmetrically provided with storage slots adapted to the baffle.

[0016] In one embodiment, a gap is left between the inner wall of the storage slot at the end away from the baffle and one end of the baffle.

[0017] In one embodiment, the distribution plate is made of bent stainless steel sheet.

[0018] Compared with the prior art, the present invention has at least the following beneficial effects:

[0019] 1. This utility model can effectively solve the problems of existing vibrating screens, such as screen damage due to material impact and frequent damage caused by material staying in a certain area of ​​the screen. It can reduce the impact of material on the screen and prevent material from staying in a certain area of ​​the screen, thereby improving the protection of the screen, extending its service life and reducing maintenance costs.

[0020] 2. This utility model can change the distance between the distribution plate and the material hole by adjusting the up and down movement of the distribution plate. It can block and divert the flow, buffer the impact of materials, make the materials evenly distributed, and adapt to different production needs.

[0021] 3. This utility model can seal the edge of the chute by setting a baffle to prevent material from adhering to the screw and affecting its use. Attached Figure Description

[0022] Figure 1This is a schematic diagram of the overall structure of a PVC powder vibrating screen feeding distribution device in one embodiment of the present invention;

[0023] Figure 2 This is a partial side sectional view of a shell according to one embodiment of the present invention;

[0024] Figure 3 This is a schematic diagram of the structure of a distributor according to one embodiment of the present invention;

[0025] Figure 4 This is a schematic diagram of the connection structure between a slide, a storage groove, and a shell in one embodiment of the present invention.

[0026] Explanation of reference numerals in the attached drawings: 1. Shell; 2. Vibrating screen cover; 3. Feed inlet; 4. Distributor; 5. Material hole; 6. Distribution plate; 7. Reinforcing edge; 8. Telescopic rod; 9. Screw; 10. Sliding block; 11. Fine distribution hole; 12. First coarse distribution elongated hole; 13. Second coarse distribution elongated hole; 14. Baffle; 15. Slide groove; 16. Collection groove; 17. Anti-slip texture. Detailed Implementation

[0027] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0028] Reference Figures 1-4 As shown, this embodiment provides a PVC powder vibrating screen material distribution device, including a housing 1, a vibrating screen cover 2 on the top of the housing 1, a material hole 5 on one side of the top of the vibrating screen cover 2, a material outlet 3 at the bottom of the housing 1, and a distributor 4 inside the housing 1, with the distributor 4 corresponding to the material hole 5. By setting the distributor 4 to correspond to the material hole 5, the material can be evenly distributed on the screen, effectively avoiding the material from concentrating and impacting a certain part of the screen, thereby significantly reducing the probability of screen breakage, extending the service life of the screen, reducing equipment downtime for maintenance, and improving production efficiency.

[0029] In this embodiment, the distributor 4 includes a distribution plate 6, which is directly opposite a set of material holes 5. The top surface of the distribution plate 6 is symmetrically provided with fine distribution holes 11, a first coarse distribution elongated hole 12 and a second coarse distribution elongated hole 13 from the inside to the outside. The two ends of the distribution plate 6 are connected to the housing 1 through height adjustment components. The distribution holes of different specifications can classify and disperse the material. With the height-adjustable distribution plate 6, the material can not only be evenly distributed, but also effectively buffer the impact force of the falling material by blocking and diverting the material, ensuring that the material is evenly spread on the screen and improving the screening quality and efficiency.

[0030] In this embodiment, the height adjustment component includes a screw 9. A sliding groove 15 is symmetrically provided on one side of the inner wall of the housing 1. The screw 9 is rotatably installed within the sliding groove 15, and its upper end penetrates the vibrating screen cover 2. A slider 10 is threadedly connected to the outer wall of the screw 9 and slidably installed within the sliding groove 15. One end of the slider 10 is fixedly connected to one end of the distribution plate 6. A telescopic rod 8 is symmetrically provided in the middle of the distribution plate 6, and its upper end is fixedly connected to the vibrating screen cover 2. This height adjustment component has a simple structure and precise adjustment. By rotating the screw 9, the slider 10 moves up and down, thus adjusting the height of the distribution plate 6. Operation is convenient. Simultaneously, the telescopic rod 8 assists in supporting the distribution plate 6, ensuring its stability and preventing wobbling during adjustment, thus ensuring the reliability of material distribution.

[0031] In this embodiment, baffles 14 are fixedly installed on both sides of the slider 10, and the baffles 14 are located in the slide groove 15 near the distribution plate 6. The inner wall of the slide groove 15 is symmetrically provided with storage grooves 16 that are adapted to the baffles 14. The cooperation between the baffles 14 and the storage grooves 16 can form an effective sealing and protective structure, preventing material particles from entering the interior of the slide groove 15, avoiding material accumulation that affects the normal sliding of the screw 9 and the slider 10, reducing the risk of equipment failure, reducing the frequency of cleaning and maintenance, and ensuring the long-term stable operation of the height adjustment component.

[0032] In this embodiment, reinforcing edges 7 are fixedly installed on both sides of the distribution plate 6, and the reinforcing edges 7 are fixedly connected to the telescopic end of the telescopic rod 8. The reinforcing edges 7 significantly enhance the overall rigidity and deformation resistance of the distribution plate 6, enabling it to maintain structural integrity when frequently adjusting its height and bearing material impact. At the same time, the connection with the telescopic rod 8 further stabilizes the distribution plate 6, preventing it from shifting or shaking during the operation of the vibrating screen, ensuring the continuous stability of the material distribution function, and providing reliable buffer protection for the screen.

[0033] In this embodiment, the distribution plate 6 is arranged in an inverted V shape, with the included angle on the inner side being about 120°. The unique inverted V-shaped structure makes full use of the principles of mechanics to form a natural guide for the falling material, so that the material is evenly dispersed to both sides under the action of gravity, effectively slowing down the falling speed of the material and greatly reducing the impact force of the material on the screen. At the same time, this structural design increases the contact area between the material and the distribution plate 6, further improving the material dispersion effect, ensuring that the material evenly covers the screen, and optimizing the screening effect.

[0034] In this embodiment, the upper end of the screw 9 is provided with multiple anti-slip patterns 17, and the multiple anti-slip patterns 17 are arranged in a circumferentially equidistant array; the anti-slip patterns 17 increase the friction between the end of the screw 9 and the operator's hand or tool, making it easier and more precise to manually adjust the screw 9, and avoiding slippage that could lead to adjustment errors.

[0035] In this embodiment, the inner wall of the slide 15 is symmetrically provided with storage slots 16 that are adapted to the baffle.

[0036] In this embodiment, a gap is left between the inner wall of the end of the storage groove 16 away from the baffle 14 and the end of the baffle 14.

[0037] In this embodiment, the distribution plate 6 can be made by bending a stainless steel plate with a thickness of 4mm.

[0038] During use, after the PVC powder enters the housing 1 through the material hole 5, it first falls onto the distribution plate 6. Since the distribution plate 6 is set in an inverted V shape, the material will naturally slide and disperse to both sides along the inverted V-shaped slope under the action of gravity, thus achieving initial dispersion.

[0039] Subsequently, the material is further classified and dispersed through the fine distribution holes 11, the first coarse distribution long holes 12 and the second coarse distribution long holes 13 arranged sequentially from the inside to the outside on the top surface of the distribution plate 6. Different sizes of distribution holes can control the flow of materials at different rates, so that the material falls onto the screen in a more uniform state, effectively buffering the impact force of the material on the screen.

[0040] When the feeding status needs to be adjusted according to the material characteristics and production requirements, the operator can adjust the height of the distribution plate 6 by rotating the screw 9. When the screw 9 rotates, the slider 10, which is threadedly connected to the screw 9, slides up and down in the slide groove 15, driving the distribution plate 6 to rise and fall. The telescopic rod 8 assists in supporting the distribution plate 6 to ensure its stability during the adjustment process. By changing the distance between the distribution plate 6 and the material hole 5, the falling speed and distribution status of the material can be flexibly adjusted to adapt to different production scenarios.

[0041] During equipment operation, the baffles 14 on both sides of the slider 10 prevent materials from entering the chute 15, avoiding material accumulation that could affect the normal sliding of the screw 9 and the slider 10, and ensuring stable operation of the height adjustment component. The reinforcing edges 7 on both sides of the distribution plate 6 are connected to the telescopic rod 8, enhancing the structural strength of the distribution plate 6 and ensuring its stability during frequent adjustments and material impacts, continuously providing effective buffering and material distribution protection for the screen. In summary, this device buffers material impacts and distributes materials evenly through the inverted V-shaped distribution plate 6 and the graded distribution holes, adjusts the screw 9 to adapt to production needs, and combines the baffles 14 and reinforcing edges 7 to ensure stable operation, thereby extending screen life, reducing maintenance costs, and improving production efficiency and screening quality.

[0042] It should be noted that the above embodiments are only used to illustrate the technical solution 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 solution of this utility model without departing from the spirit and scope of the technical solution 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 PVC powder vibrating screen feeding and distribution device, characterized in that, Includes a housing (1), a vibrating screen cover (2), and a distributor (4): The vibrating screen cover (2) is located on the top of the housing (1), and a material hole (5) is opened on one side of the top of the vibrating screen cover (2). A discharge port (3) is provided at the bottom of the housing (1). The distributor (4) is located inside the housing (1), and the distributor (4) is respectively corresponding to the material hole (5). The distributor (4) includes a distribution plate (6) which is directly opposite a set of feed holes (5). Both ends of the distribution plate (6) are connected to the housing (1) through height adjustment components.

2. The PVC powder vibrating screen feeding distribution device according to claim 1, characterized in that: The top surface of the distribution plate (6) is symmetrically provided with fine distribution holes (11), a first coarse distribution long hole (12), and a second coarse distribution long hole (13) from the inside to the outside.

3. The PVC powder vibrating screen feeding distribution device according to claim 2, characterized in that: The height adjustment component includes a screw (9), and a sliding groove (15) is symmetrically provided on one side of the inner wall of the housing (1). The screw (9) is rotatably installed in the sliding groove (15), and the upper end of the screw (9) penetrates the upper cover (2) of the vibrating screen. A slider (10) is threadedly connected to the outer wall of the screw (9). The slider (10) is slidably installed in the sliding groove (15). One end of the slider (10) is fixedly connected to one end of the distribution plate (6). The middle part of the distribution plate (6) is symmetrically provided with telescopic rods (8), and the upper end of the telescopic rods (8) is fixedly connected to the upper cover (2) of the vibrating screen.

4. The PVC powder vibrating screen feeding distribution device according to claim 3, characterized in that: The slider (10) is fixedly installed with baffles (14) on both sides, and the baffles (14) are located in the groove (15) on the side close to the distribution plate (6).

5. The PVC powder vibrating screen feeding distribution device according to claim 4, characterized in that: The distribution plate (6) has reinforcing edges (7) fixedly installed on both sides, and the reinforcing edges (7) are fixedly connected to the telescopic end of the telescopic rod (8).

6. The PVC powder vibrating screen feeding distribution device according to claim 5, characterized in that: The distribution plate (6) is arranged in an inverted V shape, and the included angle on the inner side is 110-130°.

7. The PVC powder vibrating screen feeding distribution device according to claim 4, characterized in that: The inner wall of the chute (15) is symmetrically provided with storage slots (16) that are adapted to the baffle (14).

8. The PVC powder vibrating screen feeding distribution device according to claim 7, characterized in that: There is a gap between the inner wall of the storage slot (16) away from the baffle (14) and the baffle (14).

9. The PVC powder vibrating screen feeding distribution device according to claim 3, characterized in that: The upper end of the screw (9) is provided with multiple anti-slip patterns (17), and the multiple anti-slip patterns (17) are arranged in a circumferentially equidistant array.

10. A PVC powder vibrating screen feeding and distribution device according to claim 3, characterized in that: The distribution plate (6) is made of stainless steel plate bent into shape.

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