Anti-blocking screen device

Abstract

The utility model relates to the technical field of screen mesh devices, in particular to an anti-blocking screen mesh device which comprises a frame-shaped plate, first supporting blocks are arranged on the front side and the rear side of the inner wall of the frame-shaped plate and close to the left side, and first springs are arranged on the tops of the two first supporting blocks. Second supporting blocks are arranged on the positions, close to the right side, of the front side and the rear side of the inner wall of the frame-shaped plate correspondingly, second springs are arranged at the tops of the two second supporting blocks correspondingly, and a screening assembly is jointly supported by the top ends of the two first springs and the top ends of the two second springs and comprises a screening groove, and a screen is arranged at the bottom in the screening groove. A vibration motor is arranged at the bottom of the screening groove and close to the left side, and an anti-blocking assembly used for preventing the screen from being blocked is further arranged at the bottom of the screening groove. According to the anti-blocking screen mesh device, a rubber block and a connecting spring flexible knocking structure of the anti-blocking assembly are adopted, blocking of falling materials by a traditional jacking column is avoided while blocking materials in screen mesh holes is removed, blocking is prevented, and the permeability of the screening hole diameter is ensured.

Description

A clogging-resistant screen device Technical Field

[0001] This utility model relates to the field of screen device technology, specifically to an anti-clogging screen device. Background Technology

[0002] A screen is a widely used device for separating solid particles. Its main function is to separate particles of different sizes through its specific aperture and structure. Screens are widely used in various industries, including mining, construction, chemical industry, food processing, and wastewater treatment. In these applications, the performance of the screen directly affects production efficiency and product quality. Screens are typically made of metal or plastic materials and possess high strength, wear resistance, and good permeability.

[0003] Patent CN220329270U discloses a wear-resistant screen with anti-clogging effect, including a screen frame assembly. A screen mesh assembly is fixedly connected to the inner side of the screen frame assembly, and an anti-clogging mesh assembly is fixedly installed at the lower end of the screen frame assembly. The screen frame assembly includes a screen frame body, a fixing seat, and fixing holes. This wear-resistant screen with anti-clogging effect provides excellent wear resistance and elasticity through the longitudinal and transverse screen bars made of polyurethane material. The metal wires embedded inside the longitudinal and transverse screen bars enhance the structural stability and impact resistance of the screen assembly. The combination of the two materials improves the quality and service life of the screen. The anti-clogging mesh assembly, which is bolted to the bottom of the screen frame assembly, can vibrate simultaneously with the screen assembly during the vibrating screen operation, causing the top column to move in the screen mesh holes. This allows the top column to push out materials stuck in the screen mesh holes during screening, thereby preventing screen clogging and improving practicality.

[0004] In existing technologies, the use of a moving top column within the screen mesh effectively dislodges stuck particles during material screening, thus reducing screen clogging. However, this design has several drawbacks. First, the top column obstructs material that could otherwise pass through the screen mesh, affecting screening efficiency and reducing overall screen performance. Second, the gap between the anti-clogging mesh component below the screen assembly and the screen itself can cause material to become stuck, further increasing the probability of clogging. Furthermore, traditional designs often fail to consider the potential aggregation of material during vibration, restricting material flow and impacting overall screening efficiency. Therefore, considering these issues, we propose an anti-clogging screen device. This optimized design aims to address the shortcomings of existing technologies, improve screening efficiency, reduce clogging, and ultimately enhance the practicality and reliability of the screen. Summary of the Invention

[0005] The purpose of this invention is to provide an anti-clogging screen device to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A clog-resistant screen device includes a frame plate, which serves as the main frame of the device and is used to install and support other components. As shown in Figures 1, 3, and 5, first support blocks are provided on the front and rear sides of the inner wall of the frame plate, near the left side. The first support blocks are used to fix the left spring and transmit vibration buffer. A first spring is provided on the top of each of the two first support blocks. The first spring elastically supports the left side of the screening component and absorbs vibration energy. Second support blocks are provided on the front and rear sides of the inner wall of the frame plate, near the right side. The second support blocks are used to fix the right spring and maintain the balance of the screening component. A second spring is provided on the top of each of the two second support blocks. The second spring elastically supports the right side of the screening component and works with the left spring to form an inclined vibration. The tops of the two first springs and the two second springs jointly support the screening component. The screening component is used to carry materials and complete the screening and anti-clogging linkage. The screening component includes a screening trough, which serves as a material screening container and guides the material flow direction. A screen is provided at the bottom of the screening trough. The screen separates materials through a specific aperture and prevents clogging through vibration and tapping.

[0008] As shown in Figure 4, a vibrating motor is located at the bottom of the screening trough, near the left side. The vibrating motor promotes the flow of material on the screen and improves screening efficiency through high-frequency vibration. The bottom of the screening trough is also equipped with an anti-clogging component to prevent screen blockage. The anti-clogging component removes material stuck in the screen holes by gently tapping. The anti-clogging component includes two fixed supports, and a rotating rod is rotatably connected between the two fixed supports. The rotating rod drives the tapping parts to periodically tap the screen by rotating. A drive motor is located on the right side of the fixed support to drive the rotating rod to rotate. The drive motor provides rotational power to the rotating rod and can adjust the tapping frequency. Both the vibrating motor and the drive motor are externally powered and controlled by a controller. The outer wall of the rotating rod is equipped with multiple equally spaced tapping parts. The tapping parts use a flexible connection structure to perform non-destructive clearing of the screen.

[0009] Preferably, as shown in Figure 2, the bottom of the frame plate is provided with a discharge hopper, which is used to collect and discharge qualified materials after screening. The right side of the frame plate is provided with a U-shaped clearance opening to avoid the screening trough. The U-shaped clearance opening avoids interference between the screening trough and the frame plate when the screening trough vibrates.

[0010] Preferably, as shown in Figure 4, a first connecting block is provided on both the front and rear sides of the screening trough and near the left side, and the top ends of the two first springs are respectively fixedly connected to the bottom of the two first connecting blocks.

[0011] The screening trough is provided with a second connecting block on both the front and rear sides, and the top ends of the two second springs are respectively fixedly connected to the bottom of the two second connecting blocks.

[0012] Preferably, as shown in Figures 3 and 4, the left side of the screening trough is a closed structure, which restricts the material to be discharged only from the right side outlet. The right side of the screening trough is the outlet, which guides the screened material to flow to the next process. The height of the first spring is greater than the height of the second spring. The height difference of the springs makes the screening trough tilted to the left and right to accelerate the material flow.

[0013] The top of the inner wall of the screening trough is provided with a top plate, which encloses the screening space and prevents material from splashing. A feed hopper is provided through the top of the top plate and near the left side, and the feed hopper is used to centrally input the material to be screened.

[0014] Preferably, as shown in Figure 6, the striking element includes a fixed base fixedly connected to the outer wall of the rotating rod. Two symmetrically arranged connecting springs are provided on the outer side of the fixed base. The connecting springs buffer the impact force of the striking and extend the stroke of the rubber block. Rubber blocks are provided at the outer ends of the two connecting springs. When the rotating rod rotates, the rubber blocks collide with the screen intermittently. The rubber blocks remove stuck material by flexibly contacting the screen and avoid damaging the screen structure.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] 1. This anti-clogging screen device adopts a flexible striking structure with rubber blocks and connecting springs in the anti-clogging component. While clearing the material stuck in the screen holes, it avoids the obstruction of material falling by the traditional top column, thus preventing clogging and ensuring the permeability of the screening aperture, taking into account both screening accuracy and anti-clogging effect.

[0017] 2. This anti-clogging screen device uses a spring-buffered, rubber-blocked, flexible contact mechanism to remove stuck material while avoiding wear or deformation of the screen due to rigid collisions, thus extending the screen's lifespan and reducing maintenance costs.

[0018] 3. This anti-clogging screen device works in conjunction with the drive motor of the vibration motor and the anti-clogging component. Vibration promotes material dispersion, while periodic soft tapping removes blockages. This dual action significantly improves the continuity and stability of screening and is suitable for processing high-viscosity or easily agglomerated materials. Attached Figure Description

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

[0020] Figure 2 is a schematic diagram of the overall second-view structure of this utility model;

[0021] Figure 3 is one of the partial structural schematic diagrams of this utility model;

[0022] Figure 4 is a second partial structural schematic diagram of this utility model;

[0023] Figure 5 is a schematic diagram of the screening trough structure in this utility model;

[0024] Figure 6 is a schematic diagram of the striking component structure in this utility model;

[0025] In the diagram: 100, frame plate; 110, discharge hopper; 120, U-shaped clearance opening; 130, first support block; 140, second support block; 200, first spring; 300, second spring; 400, screening assembly; 410, screening trough; 420, screen; 430, top plate; 440, feed hopper; 450, first connecting block; 460, second connecting block; 500, vibrating motor; 600, anti-blocking assembly; 610, fixed bracket; 620, rotating rod; 630, drive motor; 640, striking element; 641, fixed seat; 642, connecting spring; 643, rubber block. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. 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.

[0027] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0028] Please refer to Figures 1-6. This utility model provides a technical solution:

[0029] A clog-resistant screen device includes a frame plate 100, which serves as the main frame of the device for mounting and supporting other components. Referring to Figures 1, 3, and 5, first support blocks 130 are provided on the front and rear sides of the inner wall of the frame plate 100, near the left side. The first support blocks 130 are used to fix the left-side spring and transmit vibration buffering. First springs 200 are provided at the top of both first support blocks 130. The first springs 200 elastically support the left side of the screening component 400 and absorb vibration energy. Second support blocks 140 are provided on the front and rear sides of the inner wall of the frame plate 100, near the right side. The second support blocks 140 are used to fix the right-side spring. The springs maintain the balance of the screening component 400. The top of each of the two second support blocks 140 is provided with a second spring 300. The second spring 300 elastically supports the right side of the screening component 400 and works with the left spring to form an inclined vibration. The tops of the two first springs 200 and the two second springs 300 jointly support the screening component 400. The screening component 400 is used to carry materials and complete screening and anti-blocking linkage. The screening component 400 includes a screening trough 410. The screening trough 410 serves as a material screening container and guides the material flow direction. The bottom of the screening trough 410 is provided with a screen 420. The screen 420 separates materials through a specific aperture and prevents blockage through vibration and knocking.

[0030] As shown in Figure 4, a vibrating motor 500 is located at the bottom and near the left side of the screening tank 410. The vibrating motor 500 promotes the flow of material on the screen 420 and improves screening efficiency through high-frequency vibration. An anti-clogging component 600 is also provided at the bottom of the screening tank 410 to prevent the screen 420 from clogging. The anti-clogging component 600 removes material stuck in the holes of the screen 420 by gentle tapping. The anti-clogging component 600 includes two fixed supports 610, and a rotating rod 620 is rotatably connected between the two fixed supports 610. The rotating rod 610 drives the striking element 640 to periodically strike the screen 420. The right side of the fixed bracket 610 is equipped with a drive motor 630 for driving the rotating rod 620 to rotate. The drive motor 630 provides rotational power to the rotating rod 620 and can adjust the striking frequency. Both the vibration motor 500 and the drive motor 630 are connected to an external power supply and controller. The outer wall of the rotating rod 620 is equipped with multiple equally spaced striking elements 640. The striking elements 640 perform non-destructive cleaning of the screen 420 through a flexible connection structure.

[0031] In this embodiment, as shown in Figure 2, the bottom of the frame plate 100 is provided with a discharge hopper 110, which is used to collect and discharge qualified materials after screening. The right side of the frame plate 100 is provided with a U-shaped clearance opening 120 to avoid the screening trough 410. The U-shaped clearance opening 120 avoids interference between the screening trough 410 and the frame plate 100 when the screening trough 410 vibrates.

[0032] Specifically, as shown in Figure 4, a first connecting block 450 is provided on both the front and rear sides of the screening tank 410 and near the left side. The top ends of the two first springs 200 are respectively fixedly connected to the bottom of the two first connecting blocks 450.

[0033] The screening trough 410 is provided with a second connecting block 460 on both the front and rear sides, and the top ends of the two second springs 300 are respectively fixedly connected to the bottom of the two second connecting blocks 460.

[0034] Furthermore, as shown in Figures 3 and 4, the left side of the screening tank 410 is a closed structure, which restricts the material to be discharged only from the right outlet. The right side of the screening tank 410 is the outlet, which guides the screened material to flow to the next process. The height of the first spring 200 is greater than the height of the second spring 300. The height difference of the springs makes the screening tank 410 tilted to the left and right to accelerate the material flow.

[0035] The top of the inner wall of the screening tank 410 is provided with a top plate 430, which encloses the screening space and prevents material from splashing. A feed hopper 440 is provided through the top of the top plate 430 and near the left side, and the feed hopper 440 centrally inputs the material to be screened.

[0036] Furthermore, as shown in Figure 6, the striking component 640 includes a fixed base 641 fixedly connected to the outer wall of the rotating rod 620. Two symmetrically arranged connecting springs 642 are provided on the outer side of the fixed base 641. The connecting springs 642 buffer the impact force of the striking and extend the stroke of the rubber block 643. The outer ends of the two connecting springs 642 are provided with rubber blocks 643. When the rotating rod 620 rotates, the rubber blocks 643 collide with the screen 420 intermittently. The rubber blocks 643 flexibly contact the screen 420 to remove stuck material and avoid damaging the structure of the screen 420.

[0037] In this embodiment, when the anti-clogging screen device is in use, after the material enters the screening tank 410 through the feed hopper 440, the vibration motor 500 is started to generate high-frequency vibration, which causes the screening tank 410 to form a tilted vibration state with the left side higher than the right side under the elastic support of the first spring 200 and the second spring 300. This causes the material to flow along the surface of the screen 420 to the right discharge port for screening. At the same time, the drive motor 630 drives the rotating rod 620 to rotate multiple striking parts 640. The fixed seat 641 of the striking part 640 is connected to the spring 642 so that the rubber block 643 periodically and flexibly strikes the bottom of the screen 420, removing particles stuck in the holes of the screen 420 and avoiding rigid collision damage. During the screening process, the U-shaped clearance 120 of the frame plate 100 ensures that there is no interference when the screening tank 410 vibrates. Qualified material falls into the discharge hopper 110 through the screen 420 and is discharged, while large particles that have not passed the screening are discharged from the right discharge port of the screening tank 410. The top plate 430 closes the screening space to prevent splashing.

[0038] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A screen device for preventing clogging, comprising a frame plate (100), characterized in that: First support blocks (130) are provided on the front and rear sides of the inner wall of the frame plate (100) near the left side. A first spring (200) is provided on the top of each of the two first support blocks (130). Second support blocks (140) are provided on the front and rear sides of the inner wall of the frame plate (100) near the right side. A second spring (300) is provided on the top of each of the two second support blocks (140). The tops of the two first springs (200) and the two second springs (300) jointly support a screening assembly (400). The screening assembly (400) includes a screening trough (410). The screening trough (410) contains... The bottom of the part is provided with a screen (420), and a vibration motor (500) is provided at the bottom of the screening trough (410) and near the left side. The bottom of the screening trough (410) is also provided with an anti-blocking component (600) to prevent the screen (420) from being blocked. The anti-blocking component (600) includes two fixed brackets (610), and a rotating rod (620) is rotatably connected between the two fixed brackets (610). A drive motor (630) for driving the rotating rod (620) to rotate is provided on the right side of the right fixed bracket (610). The outer wall of the rotating rod (620) is provided with a plurality of equally spaced striking parts (640).

2. The anti-clogging screen device according to claim 1, characterized in that: The bottom of the frame plate (100) is provided with a discharge hopper (110), and the right side of the frame plate (100) is provided with a U-shaped clearance opening (120) for avoiding the screening trough (410).

3. The anti-clogging screen device according to claim 1, characterized in that: The screening trough (410) is provided with first connecting blocks (450) on both the front and rear sides and near the left side. The top ends of the two first springs (200) are respectively fixedly connected to the bottom of the two first connecting blocks (450).

4. The anti-clogging screen device according to claim 1, characterized in that: The screening trough (410) is provided with a second connecting block (460) on both the front and rear sides, and the top ends of the two second springs (300) are respectively fixedly connected to the bottom of the two second connecting blocks (460).

5. The anti-clogging screen device according to claim 1, characterized in that: The left side of the screening trough (410) is a closed structure, and the right side of the screening trough (410) is a discharge port. The height of the first spring (200) is greater than the height of the second spring (300).

6. The anti-clogging screen device according to claim 1, characterized in that: The top of the inner wall of the screening trough (410) is provided with a top plate (430), and a feed hopper (440) is provided through the top of the top plate (430) and near the left side.

7. The anti-clogging screen device according to claim 1, characterized in that: The striking element (640) includes a fixed seat (641) fixedly connected to the outer wall of the rotating rod (620). The fixed seat (641) has two symmetrically arranged connecting springs (642) on its outer side. The outer ends of the two connecting springs (642) are provided with rubber blocks (643). When the rotating rod (620) rotates, the rubber blocks (643) collide with the screen (420) intermittently.

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