A vibrating sieve for granules

Abstract

This utility model discloses a vibrating sieve for granules. The sieve component is connected to one side of the top of the mounting frame by a spring, and the vibrating motor is connected to the sieve component. The feeding component includes a feeding hopper, a connecting part, a distributing cylinder, distributing baffles, a rotating shaft, and a drive motor. The feeding hopper is fixedly connected to the mounting frame, and the top and bottom of the connecting part are respectively connected to the feeding hopper and the sieve component. The distributing cylinder is fixedly connected inside the feeding hopper, and the top and bottom of the distributing cylinder are respectively provided with a feed inlet and a discharge outlet. The rotating shaft is rotatably connected to the feeding hopper, and one side of the rotating shaft extends into the distributing cylinder. Several distributing baffles are provided, and the distributing baffles are fixed to one side of the rotating shaft located inside the distributing cylinder. The distributing baffles are evenly spaced along the circumference of the rotating shaft. The drive motor is connected to the mounting frame and is used to drive the rotating shaft to rotate. The rotation of the distributing baffles achieves uniform material distribution, avoiding material accumulation and uneven sieving problems.

Description

Technical Field

[0001] This utility model belongs to the field of screening machine technology, specifically a vibrating screening machine for granules. Background Technology

[0002] In the pharmaceutical industry, with the expansion of production scale and the increasing demand for refined processing, the efficiency and stability of screening equipment have become a focus of industry attention. As a core piece of equipment, the uniformity of feeding the vibrating screen directly affects screening efficiency and product quality. Traditional screening equipment often uses fixed hoppers or single-point feeding methods, which are difficult to adapt to diverse material characteristics and dynamic flow changes, resulting in low screen surface utilization and limited processing capacity. In recent years, the industry has gradually introduced material distribution mechanisms to optimize feed distribution, but existing technologies still suffer from complex structures and insufficient adjustment precision, hindering the intelligent upgrading and capacity improvement of screening equipment.

[0003] Existing screening equipment commonly suffers from material accumulation and uneven screening issues in its feeding process. When material enters the screen surface directly through a traditional funnel or chute, the lack of a dynamic material distribution mechanism causes particles to tend to concentrate in localized areas, forming unevenly thick material layers. This uneven distribution not only prevents fine particles from fully contacting the screen, leading to screening errors, but also causes coarse particles to become stuck on the screen surface due to overload, resulting in screening problems.19 Furthermore, material accumulation exacerbates localized wear on the screen, shortens the equipment's lifespan, and increases the motor load, potentially causing safety hazards such as vibration imbalance.

[0004] A vibrating screen material distribution device is disclosed in patent application number CN202121973880, which attempts to achieve uniform material distribution by setting an adjustable angle distribution plate at the feed end. However, the angle of the distribution plate of this device needs to be adjusted by manually rotating the worm gear drive shaft, which cannot dynamically adapt to changes in material flow and differences in particle characteristics. When the material flow rate fluctuates or the particle shape is irregular, material will still be trapped at the edge of the distribution plate, resulting in uneven material distribution on both sides of the screen surface.5 In addition, the distribution plate of this device adopts a rigid structure and lacks a flexible buffer design, which makes it easy to resonate with the screen body during vibration, further aggravating the problem of uneven screening. Utility Model Content

[0005] The purpose of this invention is to provide a vibrating sieve for granules, so as to solve the following technical problems mentioned in the background art:

[0006] Existing screening equipment generally suffers from technical problems such as material accumulation and uneven screening in the feeding stage.

[0007] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0008] A vibrating sieve for granules includes a mounting frame, a sieve component, a feeding component, a spring, and a vibrating motor. The sieve component is connected to one side of the top of the mounting frame via a spring. The vibrating motor is connected to the sieve component and drives it to vibrate. The sieve component is used to sieve granules. The feeding component includes a feeding hopper, a connecting part, a distributing cylinder, distributing baffles, a rotating shaft, and a drive motor. The feeding hopper is fixedly connected to the mounting frame. The top and bottom of the connecting part are respectively connected to the feeding hopper and the sieve component. The connecting part is made of a flexible material. The distributing cylinder is fixedly connected inside the feeding hopper. The top and bottom of the distributing cylinder are respectively provided with a feed inlet and a discharge outlet. The rotating shaft is rotatably connected to the feeding hopper. One side of the rotating shaft extends into the distributing cylinder. Several distributing baffles are provided. The distributing baffles are fixed to one side of the rotating shaft located inside the distributing cylinder and are evenly spaced along the circumference of the rotating shaft. The drive motor is connected to the mounting frame and drives the rotating shaft to rotate.

[0009] Furthermore, the screening component includes a box body and a screen plate; the screening plate is fixed inside the box body; the box body is inclined and is connected to the mounting bracket by a spring; a first discharge port is provided on the inclined downward side of the box body, and a second discharge port is provided at the bottom of the box body.

[0010] Furthermore, a material collecting baffle is installed inside the box, above the screen plate and near the first discharge port; there are two material collecting baffles, which are symmetrically arranged in a figure-eight structure.

[0011] Furthermore, the bottom of the box is recessed towards the center, and the second discharge port is located at the recessed position.

[0012] Furthermore, a sliding plate is movably inserted at the bottom of the second discharge port.

[0013] Furthermore, the connecting parts are made of leather or fabric.

[0014] Furthermore, the distance between the far ends of adjacent material distribution partitions is greater than the width of the material discharge port.

[0015] Furthermore, a first pulley is connected to one side of the rotating shaft, and a second pulley is connected to the output shaft of the drive motor. The first pulley and the second pulley are connected by a belt.

[0016] Furthermore, a limit baffle is fixedly attached to the mounting bracket.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] This invention achieves uniform material distribution through the rotation of the material distribution partition, avoiding material accumulation and the uneven screening problem caused by material accumulation in traditional feeding, thus reducing the phenomenon of missed screening and over-screening. The material distribution mechanism and the vibrating screen are carried out synchronously to realize the continuous screening process of material granules, which is suitable for stable batch production. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a front view schematic diagram of the present utility model;

[0021] Figure 3 This is one of the internal structural diagrams of this utility model;

[0022] Figure 4 This is the second schematic diagram of the internal structure of this utility model.

[0023] The markings in the diagram are: 1-mounting bracket, 2-spring, 3-limiting baffle, 4-drive motor, 5-feeding component, 6-screening component, 7-feeding hopper, 8-connecting part, 9-collecting baffle, 10-box body, 11-distribution partition, 12-distribution cylinder, 13-feeding port, 14-rotating shaft, 15-dropping port, 16-vibration motor, 17-screen plate, 18-second discharge port, 19-insertion plate, 20-first discharge port. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Example:

[0026] A vibrating sieve for granules, such as Figure 1 As shown, it includes a mounting frame 1, a screening component 6, a feeding component 5, a spring 2, and a vibrating motor 16; the screening component 6 is connected to one side of the top of the mounting frame 1 via the spring 2, and the vibrating motor 16 is connected to the screening component 6. The vibrating motor 16 is used to drive the screening component 6 to vibrate, and the screening component 6 is used to screen granules; as shown... Figure 2 as well as Figure 3As shown, the feeding component 5 includes a feeding hopper 7, a connecting part 8, a distributing cylinder 12, distributing partitions 11, a rotating shaft 14, and a drive motor 4. The feeding hopper 7 is fixedly connected to the mounting frame 1. The top and bottom of the connecting part 8 are respectively connected to the feeding hopper 7 and the screening component 6. The connecting part 8 is made of flexible material. The distributing cylinder 12 is fixedly connected inside the feeding hopper 7. The top and bottom of the distributing cylinder 12 are respectively provided with a feed inlet 13 and a discharge outlet 15. The rotating shaft 14 is rotatably connected to the feeding hopper 7. One side of the rotating shaft 14 extends into the distributing cylinder 12. Several distributing partitions 11 are provided. The distributing partitions 11 are fixedly connected to the rotating shaft 14 and located on one side inside the distributing cylinder 12. The distributing partitions 11 are evenly spaced along the circumference of the rotating shaft 14. The drive motor 4 is connected to the mounting frame 1 and is used to drive the rotating shaft 14 to rotate.

[0027] The mounting frame 1 serves as the basic framework of the equipment, fixing all components such as the feed component 5, screening component 6, and drive motor 4, ensuring overall structural stability and providing rigid support for the vibrating screen. The screening component 6 has a built-in screen plate 17, which achieves the grading and separation of granules through vibration. The screening component 6 is connected to the mounting frame 1 by a spring 2, allowing the vibrating motor 16 to drive it to vibrate.

[0028] In the feeding component 5, the feeding hopper 7 is used to temporarily store the granules to be screened, providing a stable material source for the distribution mechanism; the connecting part 8 is made of flexible materials such as rubber or canvas, connecting the feeding hopper 7 at the top and the screening component 6 at the bottom, ensuring that the material falls smoothly from the distribution cylinder 12 into the screening component 6 without affecting the vibration of the screening component 6. The distribution cylinder 12 forms a closed distribution space, receiving material through the top feeding port 13 and outputting material through the bottom discharge port 15; the rotating shaft 14 drives the distribution partition 11 to rotate, dividing the material in the distribution cylinder 12 into several portions, which fall quantitatively when they reach the discharge port 15 as the partition rotates, achieving uniform material distribution and avoiding material accumulation in a localized area of ​​the screening component 6, which would affect the screening efficiency and effect.

[0029] In a preferred embodiment, such as Figure 3 As shown, the screening component 6 includes a housing 10 and a screen plate 17; the screen plate 17 is fixed inside the housing 10; the housing 10 is inclined and is connected to the mounting frame 1 by a spring 2; a first discharge port 20 is provided on the inclined downward side of the housing 10, and a second discharge port 18 is provided at the bottom of the housing 10. In the screening component 6, the inclined housing 10, combined with vibration, can cause the material to move along the inclined direction, thereby improving screening efficiency; the screen plate 17 is used to separate particles of different sizes. Particles that meet the specifications are discharged from the second discharge port 18 at the bottom through the screen plate 17, while particles that do not pass through are discharged from the first discharge port 20 along the inclined housing 10, thus achieving graded discharge; the housing 10 and the mounting frame 1 are connected by a spring 2 to ensure smooth vibration.

[0030] In a preferred embodiment, such as Figure 4As shown, a collecting baffle 9 is installed inside the housing 10, above the screen plate 17 and near the first discharge port 20. There are two collecting baffles 9, which are symmetrically arranged in a V-shape. The two V-shaped collecting baffles 9 can gather the particles that have not passed through the screen plate 17 to the center and guide them to the first discharge port 20, preventing particles from accumulating and stagnating at the edge of the housing 10, ensuring that large particles are discharged smoothly, and improving the continuity of screening and the discharge efficiency.

[0031] In a preferred embodiment, such as Figure 3 As shown, the bottom of the box 10 is recessed towards the center, and the second discharge port 18 is located in the recessed position. The recessed bottom of the box 10 and the location of the second discharge port 18 in the recessed position allow particles passing through the screen plate 17 to gather towards the recessed position under the action of vibration, preventing particles from remaining at the bottom edge of the box 10, ensuring that small particles are quickly and completely discharged from the second discharge port 18, and improving the collection efficiency of the screened material.

[0032] In a preferred embodiment, a movable insert plate 19 is inserted into the bottom of the second discharge port 18. The movable insert plate 19 at the bottom of the second discharge port 18 can be inserted and removed to control the discharge switch, making it convenient to pause or start the discharge of small particles as needed, facilitating the replacement of collection containers or adjustment of the discharge rhythm, and improving operational flexibility.

[0033] In a preferred embodiment, the connecting part 8 is made of leather or cloth. The connecting part 8 is made of flexible materials such as leather or cloth, which can ensure that the material falls smoothly from the feed hopper 7 into the screening component 6, and can also adapt to the vibration of the screening component 6 without restricting its movement. At the same time, it buffers the transmission of vibration, reduces the impact on the feed hopper 7, and takes into account both sealing and flexibility.

[0034] In a preferred embodiment, the distance between the far ends of adjacent material distribution partitions 11 is greater than the width of the discharge port 15. The greater distance between the far ends of adjacent material distribution partitions 11 than the width of the discharge port 15 ensures that when the material distribution partitions 11 rotate to the discharge port 15, their edges can temporarily close both sides of the discharge port 15, ensuring that the material falls quantitatively and orderly from the discharge port 15 and improving the uniformity of material distribution.

[0035] In a preferred embodiment, a first pulley is connected to one side of the rotating shaft 14, and a second pulley is connected to the output shaft of the drive motor 4. The first pulley and the second pulley are connected by a belt. The first pulley, the second pulley, and the belt cooperate to realize the power transmission between the drive motor 4 and the rotating shaft 14. The flexible connection of the belt drive can buffer speed fluctuations, facilitate the adjustment of the rotation speed of the rotating shaft 14, simplify the transmission structure, reduce the installation accuracy requirements, and ensure the stable rotation of the material distribution partition 11.

[0036] In a preferred embodiment, such as Figure 1As shown, a limiting baffle 3 is fixedly attached to the mounting frame 1. The limiting baffle 3 is used to limit and protect the screening component 6. The limiting baffle 3 can limit the vibration amplitude of the screening component 6, prevent it from deviating from the preset range due to excessive vibration or colliding with other components, and at the same time prevent the screening component 6 from falling and causing structural damage, thus playing a role in protecting the screening component 6 and maintaining the stable operation of the equipment.

[0037] In the description of this utility model, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "side", "top", "inner", "front", "center", "both ends", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0038] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "setting," "connection," "fixing," "screw connection," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0039] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A vibratory sifter for granules, characterized in that: It includes a mounting frame (1), a screening component (6), a feeding component (5), a spring (2), and a vibration motor (16); the screening component (6) is connected to one side of the top of the mounting frame (1) by the spring (2), the vibration motor (16) is connected to the screening component (6), the vibration motor (16) is used to drive the screening component (6) to vibrate, and the screening component (6) is used to screen granules; The feeding component (5) includes a feeding hopper (7), a connecting part (8), a distributing cylinder (12), a distributing partition (11), a rotating shaft (14), and a drive motor (4); the feeding hopper (7) is fixedly connected to the mounting frame (1), and the top and bottom of the connecting part (8) are respectively connected to the feeding hopper (7) and the screening component (6), and the connecting part (8) is made of flexible material; The material distribution cylinder (12) is fixed inside the feed hopper (7). The top and bottom of the material distribution cylinder (12) are respectively provided with a feed inlet (13) and a discharge outlet (15). The rotating shaft (14) is rotatably connected to the feed hopper (7). One side of the rotating shaft (14) extends into the material distribution cylinder (12). Several material distribution partitions (11) are provided. The material distribution partitions (11) are fixed on the rotating shaft (14) and located on one side inside the material distribution cylinder (12). The material distribution partitions (11) are evenly spaced along the circumference of the rotating shaft (14). The drive motor (4) is connected to the mounting frame (1). The drive motor (4) is used to drive the rotating shaft (14) to rotate.

2. A vibratory sifting machine for granules according to claim 1, characterized in that: The screening component (6) includes a box body (10) and a screen plate (17); the screening component is fixed inside the box body (10); the box body (10) is inclined and is connected to the mounting frame (1) by a spring (2); a first discharge port (20) is provided on the inclined downward side of the box body (10), and a second discharge port (18) is provided at the bottom of the box body (10).

3. A vibratory sifting machine for granules according to claim 2, characterized in that: Inside the box (10), a material collecting baffle (9) is provided above the screen plate (17) and near the first discharge port (20); there are two material collecting baffles (9), and the two material collecting baffles (9) are symmetrically arranged in a figure-eight structure.

4. A vibratory sifting machine for granules according to claim 2, characterized in that: The bottom of the box (10) is recessed towards the middle, and the second discharge port (18) is located at the recessed position.

5. A vibratory sifting machine for granules according to claim 4, characterized in that: A plate (19) is movably inserted at the bottom of the second discharge port (18).

6. A vibratory sifting machine for granules according to claim 1, characterized in that: The connecting part (8) is made of leather or cloth.

7. A vibratory sifting machine for granules according to claim 1, characterized in that: The distance between the far ends of adjacent material distribution partitions (11) is greater than the width of the material discharge port (15).

8. A vibratory sifting machine for granules according to claim 1, characterized in that: A first pulley is connected to one side of the rotating shaft (14), and a second pulley is connected to the output shaft of the drive motor (4). The first pulley and the second pulley are connected by a belt.

9. A vibratory sifting machine for granules according to claim 1, characterized in that: A limit baffle (3) is fixedly attached to the mounting bracket (1).

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