A raw material screening device for firing a brick

Abstract

The utility model relates to building material production equipment field especially relates to a raw material screening device for brick blank firing, including rubbing crusher and moving block etc., the top of rubbing crusher is connected with the hopper, the stripe filter plate is connected in rubbing crusher, the screw rod is rotatably connected in rubbing crusher, the inclination angle of screw rod is identical with stripe filter plate, the outside of rubbing crusher is installed with motor, the output shaft of motor is connected with screw rod end, the fixed connection of guiding rod is established in rubbing crusher, guiding rod and screw rod are symmetrical about stripe filter plate, one end of moving block is connected with screw rod thread, and the other end is connected with guiding rod sliding, the top of moving block is connected with a plurality of push plate, and push plate sliding connection is in the interstice of stripe filter plate, and the ejection assembly of intermittent cleaning stripe filter plate interstice is arranged in the lower end of moving block. Through the transmission cooperation of moving block, screw rod and guiding rod, make moving block along stripe filter plate inclination track stable sliding, and push plate synchronous enters stripe filter plate interstice and pushes and shoves the material of jamming, realizes the purpose that stripe filter plate interstice is automatically cleaned.

Description

Technical Field

[0001] This utility model relates to the field of building material production equipment, and in particular to a raw material screening device for brick blank firing. Background Technology

[0002] Brick firing is one of the core processes in my country's traditional building materials industry, and the quality of raw material processing directly affects the mechanical properties and appearance of the finished bricks. In the brick preparation process, the handling of clay lumps is a crucial step, requiring the separation of hard lumps from powdery clay using screening devices to ensure uniformity in subsequent molding processes. Traditionally, clay lumps are mainly handled manually or using simple mechanical devices.

[0003] Existing brick-making feeding equipment mostly employs vibrating screens or drum screens, whose core function is to separate materials of different particle sizes through the gaps in the screen mesh. This type of equipment is typically equipped with crushing tools to further break up any hard lumps remaining on the screen. In practical applications, the equipment filters powdery soil through the screen, reducing the workload of subsequent crushing processes. However, the screens often use metal rods or mesh plates with fixed gaps. When the size of the soil lumps is close to the screen gaps, the material easily gets stuck, causing localized blockages. As the stuck soil lumps accumulate, the effective filtration area of ​​the screen gradually decreases, leading to a decline in feeding efficiency. In severe cases, the screen may even become completely blocked, requiring manual shutdown for cleaning, significantly increasing production costs and maintenance difficulty. Utility Model Content

[0004] To overcome the drawbacks of requiring manual intervention for blockage and clogging, this invention provides a raw material screening device for brick firing, aiming to solve the aforementioned shortcomings.

[0005] A raw material screening device for brick firing includes a crusher and a moving block. A hopper is connected to the top of the crusher. A striped filter plate is connected inside the crusher. A lead screw is rotatably connected inside the crusher, with the lead screw's inclination angle matching that of the striped filter plate. A motor is installed outside the crusher, and the motor's output shaft is connected to the end of the lead screw. A guide rod is fixedly connected inside the crusher, symmetrical to the lead screw about the striped filter plate. One end of the moving block is threaded to the lead screw, and the other end is slidably connected to the guide rod. Several push plates are connected to the top of the moving block, slidably connected within the gaps of the striped filter plate. A push-out assembly for intermittently cleaning the gaps of the striped filter plate is provided at the lower end of the moving block.

[0006] Furthermore, the ejector assembly includes a mounting plate, and limit grooves are opened on both the left and right sides inside the crusher. The two ends of the mounting plate are slidably connected to the limit grooves through round rods. The mounting plate is slidably connected to the moving block, and several top blocks are connected to the top surface of the mounting plate.

[0007] Furthermore, a push rod is slidably connected to the side of the push plate facing the top block, and a return spring is provided inside the push plate. One end of the return spring is connected to the push rod, and the other end is connected inside the push plate.

[0008] Furthermore, the movable block is embedded with a number of ball bearings, which are arranged around the guide rod.

[0009] Furthermore, an inclined plate is connected to the top surface of the mounting plate, and the inclined plate is tilted in the same direction as the striped filter plate.

[0010] Furthermore, a baffle is connected to the bottom of the hopper, and the baffle is located above the moving block.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0012] 1. Through the transmission cooperation between the moving block and the lead screw and guide rod, the moving block slides stably along the inclined trajectory of the striped filter plate, and the push plate enters the gap of the striped filter plate at the same time to push out the stuck material, so as to achieve the purpose of automatic cleaning of the gap of the striped filter plate.

[0013] 2. By sliding the mounting plate and the limiting groove, the mounting plate is driven to swing by the reciprocating bending path of the limiting groove. The top block periodically pushes out the bottom surface of the striped filter plate, pushing the soil clods in the gaps out in the opposite direction, thereby improving the raw material processing efficiency and equipment reliability. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0015] Figure 2 This is a schematic diagram showing the connection relationship between the motor and the lead screw of this utility model.

[0016] Figure 3 This is a schematic diagram showing the connection relationship between the mounting plate and the top block of this utility model.

[0017] Figure 4 This is a cross-sectional view showing the connection relationship between the reset spring and the push rod of this utility model.

[0018] The parts and their numbers in the diagram are as follows: 1_Crusher, 2_Feeding Hopper, 201_Striped Filter Plate, 3_Motor, 4_Screw, 5_Guide Rod, 6_Moving Block, 7_Push Plate, 8_Limiting Groove, 9_Mounting Plate, 10_Top Block, 11_Reset Spring, 12_Top Rod, 13_Ball Ball, 14_Inclined Plate, 15_Baffle. Detailed Implementation

[0019] 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.

[0020] Example: A raw material screening device for brick firing, such as... Figures 1-4 As shown, the assembly includes a crusher 1, a hopper 2, a striped filter plate 201, a motor 3, a lead screw 4, a guide rod 5, a moving block 6, a push plate 7, and an ejector assembly. The hopper 2 is connected to the top of the crusher 1. The striped filter plate 201 is connected inside the crusher 1, and the area below the inclined surface of the striped filter plate 201 is set as the crushing zone. The lead screw 4 is rotatably connected inside the crusher 1, and the inclination angle of the lead screw 4 is the same as that of the striped filter plate 201. The motor 3 is installed on the outside of the crusher 1, and the output shaft of the motor 3 is connected to the end of the lead screw 4. The motor 3 is connected to the end of the lead screw 4 through a reduction mechanism. To achieve low-speed, high-torque transmission, a guide rod 5 is fixedly connected inside the crusher 1. The guide rod 5 and the lead screw 4 are symmetrical about the striped filter plate 201. One end of the moving block 6 is threadedly connected to the lead screw 4, and the other end is slidably connected to the guide rod 5. The lead screw 4 is located below the solid part of the striped filter plate 201. Several push plates 7 are connected to the top of the moving block 6. The push plates 7 are slidably connected in the gaps of the striped filter plate 201. The top of the push plate 7 is provided with a chamfered structure to reduce the entry resistance. The lower end of the moving block 6 is provided with an ejector assembly for intermittently cleaning the gaps of the striped filter plate 201.

[0021] like Figure 3 and Figure 4 As shown, the ejector assembly includes a mounting plate 9 and a top block 10. Limiting grooves 8 are opened on both the left and right sides of the crusher 1. The two ends of the mounting plate 9 are slidably connected to the limiting grooves 8 by round rods. The limiting grooves 8 adopt a reciprocating bending path design, so that the mounting plate 9 generates a swinging effect during the displacement process. The mounting plate 9 is slidably connected to the moving block 6. Several top blocks 10 are connected to the top surface of the mounting plate 9. The top of the top block 10 is rounded to reduce squeezing damage.

[0022] like Figure 3 and Figure 4 As shown, it also includes a return spring 11 and a push rod 12. The push plate 7 is slidably connected to the push rod 12 on the side facing the top block 10. The push plate 7 is provided with a return spring 11. One end of the return spring 11 is connected to the push rod 12, and the other end is connected to the push plate 7. The end of the push rod 12 is provided with a spherical head to reduce the contact area with the material.

[0023] like Figure 4 As shown, it also includes ball bearings 13. Several ball bearings 13 are embedded in the moving block 6. The ball bearings 13 are arranged around the guide rod 5 to convert sliding friction into rolling friction.

[0024] like Figure 4 As shown, it also includes an inclined plate 14. The top surface of the mounting plate 9 is connected to the inclined plate 14. The inclined plate 14 is inclined in the same direction as the striped filter plate 201 to form a continuous material guiding surface.

[0025] like Figure 1 As shown, it also includes a baffle 15. The bottom end of the hopper 2 is connected to the baffle 15, which is located above the moving block 6, effectively preventing materials from directly impacting the moving block 6 assembly.

[0026] Workers pour the soil to be processed into hopper 2. Under gravity, the raw material slides down the hopper wall onto the surface of the striped filter plate 201. Baffle 15 effectively prevents the material from directly impacting the moving block 6 area, ensuring that the falling path is concentrated on the working surface of the striped filter plate 201. Powdered material smaller than the gaps between the striped filter plates 201 naturally seeps into the collection container under vibration, while hard soil lumps that exceed the size limit roll down the slope of the striped filter plate 201 to the crushing area. After being crushed, they are returned to the inlet of hopper 2 via a conveying device, forming a continuous cycle processing flow. Workers observe the state of the material in the collection container and stop the equipment operation after confirming that there are no large pieces remaining.

[0027] During the unblocking operation: The operator starts the motor 3, and the lead screw 4 drives the moving block 6 to slide down the guide rod 5 via threaded transmission during rotation. The ball bearings 13 embedded in the contact surface between the moving block 6 and the guide rod 5 convert sliding friction into rolling friction, significantly reducing motion resistance and ensuring smooth movement. The push plate 7 on the top of the moving block 6 pushes the soil stuck in the gap of the striped filter plate 201 forward. At this time, the mounting plate 9 moves synchronously with the moving block 6 under the constraint of the limiting groove 8, and the top block 10 on its top surface periodically impacts the bottom surface of the striped filter plate 201, generating a reverse force to push the material out of the gap. The inclined plate 14 structure guides the cleaned soil to slide down into the crushing area, preventing the material from accumulating inside the equipment. When the push rod 12 on the side of the push plate 7 comes into contact with hard soil, it is compressed and retracts. The return spring 11 is compressed and generates a rebound force. After the soil is removed, it pushes the push rod 12 to reset, forming an adaptive buffer mechanism. When the moving block 6 slides to the bottom of the striped filter plate 201, the motor 3 reverses and drives the moving block 6 to rise and reset along the original path. The top block 10 and the push plate 7 work together to complete a complete unblocking cycle, effectively restoring the permeability of the striped filter plate 201 and providing a reliable guarantee for subsequent operations.

[0028] The present application has been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only for the purpose of helping to understand the method and core ideas of the present application. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of the present application. Therefore, the content of this specification should not be construed as a limitation of the present application.

Claims

1. A raw material screening device for brick firing, characterized in that, The device includes a crusher (1) and a moving block (6). A hopper (2) is connected to the top of the crusher (1). A striped filter plate (201) is connected inside the crusher (1). A lead screw (4) is rotatably connected inside the crusher (1). The inclination angle of the lead screw (4) is the same as that of the striped filter plate (201). A motor (3) is installed on the outside of the crusher (1). The output shaft of the motor (3) is connected to the end of the lead screw (4). A guide is fixedly connected inside the crusher (1). The guide rod (5) and the lead screw (4) are symmetrical about the striped filter plate (201). One end of the moving block (6) is threadedly connected to the lead screw (4), and the other end is slidably connected to the guide rod (5). Several push plates (7) are connected to the top of the moving block (6). The push plates (7) are slidably connected in the gaps of the striped filter plate (201). The lower end of the moving block (6) is provided with an ejector assembly for intermittently cleaning the gaps of the striped filter plate (201).

2. The raw material screening device for brick firing according to claim 1, characterized in that, The ejector assembly includes a mounting plate (9). Limiting grooves (8) are opened on both the left and right sides of the crusher (1). The two ends of the mounting plate (9) are slidably connected to the limiting grooves (8) by round rods. The mounting plate (9) is slidably connected to the moving block (6). Several top blocks (10) are connected to the top surface of the mounting plate (9).

3. The raw material screening device for brick firing according to claim 2, characterized in that, The push plate (7) is slidably connected to the top rod (12) on the side facing the top block (10). A reset spring (11) is provided inside the push plate (7). One end of the reset spring (11) is connected to the top rod (12), and the other end is connected inside the push plate (7).

4. The raw material screening device for brick firing according to claim 3, characterized in that, The movable block (6) is embedded with a number of balls (13), which are arranged around the guide rod (5).

5. The raw material screening device for brick firing according to claim 4, characterized in that, The top surface of the mounting plate (9) is connected to an inclined plate (14), and the inclined plate (14) is tilted in the same direction as the striped filter plate (201).

6. The raw material screening device for brick firing according to claim 5, characterized in that, The bottom end of the hopper (2) is connected to a baffle (15), which is located above the moving block (6).

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