A food processing raw material screening device

Abstract

This utility model relates to the field of food processing technology and discloses a raw material screening device for food processing. It includes a base, with a main body fixedly connected to the top of the base. Two protective covers are fixedly connected to the outer side of the main body. A push rod is slidably connected inside each of the two protective covers. A spring is fixedly connected to the upper side of each push rod. A linkage rod is fixedly connected to the top of each push rod, and a connecting rod is fixedly connected to the top of each linkage rod. Rotating columns are rotatably connected to both ends of each connecting rod. Sliding columns are slidably connected to the outer side of each rotating column, and limit blocks are fixedly connected to adjacent sides of each sliding column. In this utility model, when the push rod is pressed, the spring stores energy and drives the rotating column to rotate, causing the limit block to open. After pressing the top cover, the limit block is released, and the elastic return mechanism locks the rotating column to the mounting block, achieving a seal, preventing dust leakage, and ensuring production safety.

Description

Technical Field

[0001] This utility model relates to the field of food processing technology, and in particular to a raw material screening device for food processing. Background Technology

[0002] Raw material screening equipment in food processing is used to remove impurities and substandard products from raw materials, ensuring their quality. These equipment come in various types, such as vibrating screens that separate raw materials of different sizes through vibration; drum screens that use rotating drums to screen raw materials; and photoelectric sorting machines that use photoelectric technology to identify and remove discolored or spoiled raw materials. The equipment is mostly made of stainless steel, meets food hygiene standards, and is easy to operate, highly efficient, and can be customized according to the characteristics of the raw materials. It is widely used in the processing of grains, fruits, and vegetables, and is an important guarantee for food safety in production.

[0003] Food processing raw material screening equipment includes equipment for screening raw materials such as flour and corn flour. This type of equipment typically uses mechanical vibration, rotation, or airflow to force the powdered raw materials through screens with different aperture sizes. Vibrating screens rely on a vibrating motor or eccentric device to generate vibration, causing the powder to reciprocate on the screen surface. Fine powder passes through the screen and falls down, while coarse powder remains on the screen surface and is discharged. Rotary drum screens use a rotating drum to bring the powder into contact with the screen inside the drum. Powder that meets the particle size requirement passes through the screen, while coarse particles are discharged from the end of the drum, achieving particle size classification and screening.

[0004] In existing technologies, some food processing raw material screening equipment experiences dust leakage during operation due to the connection between the machine body and the top cover. This leads to contamination of the production environment and raw materials, posing a health and safety hazard. Dust accumulation can also exacerbate wear and tear on equipment components and cause malfunctions. Furthermore, frequent shutdowns for cleaning are required, which affects production efficiency and wastes raw materials. Therefore, a food processing raw material screening equipment is proposed to solve the above problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a raw material screening device for food processing, aiming to improve the existing technology where dust leaks out from the connection between the machine body and the top cover during operation, causing pollution of the production environment and raw materials, creating hygiene and safety hazards. Dust accumulation also aggravates the wear and tear of equipment parts and causes malfunctions. At the same time, it requires frequent shutdowns for cleaning, which affects production efficiency and causes waste of raw materials.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A food processing raw material screening device includes a base, a body fixedly connected to the top of the base, two protective covers fixedly connected to the outer side of the body, a push rod slidably connected inside each of the two protective covers, a spring fixedly connected to the upper side of each push rod, a linkage rod fixedly connected to the top of each push rod, a connecting rod fixedly connected to the top of each linkage rod, a rotating column rotatably connected to both ends of each connecting rod, a sliding column slidably connected to the outer side of each rotating column, a limit block fixedly connected to the adjacent side of each sliding column, an installation block installed inside the limit block, a top cover fixedly connected to the top of each installation block, a sealing ring fixedly connected to the top of the body, and a dust collection component for preventing dust pollution on the front side of the body.

[0008] As a further description of the above technical solution:

[0009] The dust collection assembly includes a discharge cylinder, the rear of which is fixedly connected to the front of the machine body. A fixing block is fixedly connected to the top of the discharge cylinder. A motor is fixedly connected inside the fixing block. An L-shaped block is fixedly connected to the drive end of the motor. A slider is rotatably connected inside the L-shaped block. A ball is slidably connected to the outer side of the slider. A rotating shaft is fixedly connected to the top of the ball. A dust collection head is fixedly connected to the top of the rotating shaft. An external pipe is fixedly connected to the rear of the dust collection head. A second motor is fixedly connected inside the fixing block. A drive wheel is fixedly connected to the drive end of the second motor. A belt is rotatably connected to the outer side of the drive wheel. A driven wheel is rotatably connected to the other end of the belt. An L-shaped block is fixedly connected to the other end of the driven wheel.

[0010] As a further description of the above technical solution:

[0011] The other end of the spring is fixedly connected to the inside of the protective cover, and the outer side of the linkage rod is slidably connected to the inside of the protective cover.

[0012] As a further description of the above technical solution:

[0013] The opposite side of the sliding column is fixedly connected to the inside of the protective cover, and the top end of the sealing ring is in contact with the bottom end of the top cover;

[0014] As a further description of the above technical solution:

[0015] The rotating column has an arc-shaped groove inside, and the adjacent side of the sliding column is slidably connected inside the arc-shaped groove;

[0016] As a further description of the above technical solution:

[0017] The sphere has a groove inside, and the outer side of the slider is slidably connected to the inside of the groove;

[0018] As a further description of the above technical solution:

[0019] The outer side of the rotating shaft is rotatably connected to the inside of the L-shaped block 2, and the outer side of the driven wheel is rotatably connected to the inside of the fixed block;

[0020] As a further description of the above technical solution:

[0021] The left side of the second L-shaped block is rotatably connected to the outside of the protective cover, and the bottom end of the first L-shaped block is rotatably connected to the outside of the protective cover.

[0022] This utility model has the following beneficial effects:

[0023] 1. In this utility model, when the actuating rod is pressed, the external force stores elastic potential energy through the spring. At the same time, the linkage rod pushes the connecting rod to make the two rotating columns move. The sliding column slides along the arc groove of the rotating column, forcing the rotating column to rotate and open the limiting block. At this time, the top cover is put on and pressed tightly, so that the sealing ring is positioned under pressure. After being released, the spring releases elastic potential energy, the rotating column resets and locks the mounting block, realizing equipment sealing, preventing dust from overflowing, reducing material loss and production risks, and ensuring safety.

[0024] 2. In this utility model, the first starter motor drives the first L-shaped block to rotate, and the slider drives the ball to rotate around the rotating shaft, causing the dust suction head to swing horizontally. The second starter motor drives the drive wheel, and the second L-shaped block rotates vertically through belt transmission, thereby adjusting the pitch angle of the dust suction head. The two motors work together to achieve multi-directional adjustment of the dust suction head, adsorbing the dust raised when the material falls, reducing diffusion and raw material waste, and improving the workshop environment. Attached Figure Description

[0025] Figure 1 This is a three-dimensional schematic diagram of a raw material screening device for food processing proposed in this utility model.

[0026] Figure 2 This is a schematic diagram of the structure of a protective cover for a food processing raw material screening device proposed in this utility model;

[0027] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0028] Figure 4 This is a schematic diagram of the structure of the fixed block in a food processing raw material screening device proposed in this utility model.

[0029] Legend:

[0030] 1. Base; 2. Machine body; 3. Top cover; 4. Protective cover; 5. Press rod; 6. Linkage rod; 7. Spring; 8. Connecting rod; 9. Rotating column; 10. Sliding column; 11. Limiting block; 12. Mounting block; 13. Sealing ring; 14. Discharge cylinder; 15. Fixing block; 16. Motor 1; 17. L-shaped block 1; 18. Sliding block; 19. Ball; 20. Rotating shaft; 21. Dust suction head; 22. External pipe; 23. Motor 2; 24. Drive wheel; 25. Belt; 26. Driven wheel; 27. L-shaped block 2. Detailed Implementation

[0031] 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.

[0032] Reference Figures 1 to 3 This utility model provides one embodiment: a raw material screening device for food processing, including a base 1. The base 1 serves as the basic support component of the entire device, providing a stable mounting platform for the machine body 2 and other components, ensuring the stability of the device during operation, preventing displacement or tipping due to vibration or external forces, and laying the foundation for the normal operation of the device. The top of the base 1 is fixedly connected to the machine body 2, which is the main frame of the device, not only used for installing and fixing other core components, but also providing space for various raw material screening operations.

[0033] Two protective covers 4 are fixedly connected to the outer side of the machine body 2. The protective covers 4 mainly serve to protect the internal transmission components. Inside each of the two protective covers 4, a push rod 5 is slidably connected. The push rod 5 is the manual operation component of the equipment. The operator presses down on the push rod 5 to transmit manual force to the connected spring 7 and linkage rod 6. A spring 7 is fixedly connected to the upper side of the push rod 5, serving a dual function of reset and buffering. When the operator presses the push rod 5, the spring 7 is compressed, storing elastic potential energy; when the operator releases the push rod 5, the spring 7 releases the elastic potential energy, pushing the push rod 5 upward to reset, restoring the equipment to its initial state for the next operation.

[0034] A linkage rod 6 is fixedly connected to the top of the push rod 5. The linkage rod 6 transmits the vertical movement of the push rod 5 to the connecting rod 8. The top of the linkage rod 6 is also fixedly connected to the connecting rod 8. The connecting rod 8 moves up and down under the drive of the linkage rod 6, converting the linear movement of the linkage rod 6 into the rotation of the rotating column 9. The left and right ends of the connecting rod 8 are rotatably connected to the rotating column 9. A sliding column 10 is slidably connected to the outer side of the rotating column 9. The rotating column 9 has an arc-shaped groove inside, which works in conjunction with the sliding column 10. When the connecting rod 8 drives the rotating column 9 to move, the rotating column 9 rotates under the restriction of the arc-shaped groove. A limit block 11 is fixedly connected to the adjacent side of the sliding column 10. An installation block 12 is installed on the inner side of the limit block 11. A top cover 3 is fixedly connected to the top of the installation block 12. The limit block 11 and the installation block 12 are used to fix the top cover 3.

[0035] Connected to the rotating column 9, the limiting block 11, under the action of the transmission component, can rotate to both sides to release the restriction on the top cover 3, and rotate to the center to firmly fix the top cover 3 to the top of the machine body 2. A sealing ring 13 is fixedly connected to the top of the machine body 2. The sealing ring 13 fits tightly with the machine body 2 and the top cover 3, forming a closed space during equipment operation. This effectively prevents raw materials from overflowing during screening, while also preventing dust from escaping, ensuring a clean working environment and protecting the health of operators. A dust collection component is installed on the front side of the machine body 2 to prevent dust pollution.

[0036] Reference Figure 1 , Figure 2 , Figure 4 The dust collection assembly includes a discharge cylinder 14, which is fixedly connected to the front of the machine body 2 at its rear. The discharge cylinder 14 is the channel through which the product flows out after screening. A fixing block 15 is fixedly connected to the top of the discharge cylinder 14. The fixing block 15 provides a mounting base for components such as motor 16 and motor 23, and plays a role in fixing and supporting them to ensure that each component remains stable during operation. Motor 16 is fixedly connected inside the fixing block 15. Motor 16 is one of the power sources of the dust collection assembly, providing power to the components connected to it. An L-shaped block 17 is fixedly connected to the drive end of motor 16. Under the drive of motor 16, it rotates. At the same time, through the internally rotating slider 18 and the ball 19, the power of motor 16 is transmitted to the dust collection head 21, changing the direction of force transmission.

[0037] The L-shaped block 17 has a rotatable internal connection to a slider 18, and a ball 19 is slidably connected to the outside of the slider 18. The cooperation between the slider 18 and the ball 19 allows the vacuum head 21 to rotate flexibly in multiple directions. A rotating shaft 20 is fixedly connected to the top of the ball 19. The rotating shaft 20 transmits the movement of the ball 19, enabling the vacuum head 21 to rotate, and also provides support for the vacuum head 21, ensuring that the vacuum head 21 remains stable during movement.

[0038] A suction head 21 is fixedly connected to the top of the rotating shaft 20. The suction head 21 is the component that directly adsorbs dust, drawing in the dust raised during the screening process by generating suction. It is the actuator that realizes the dust suction function. An external pipe 22 is fixedly connected to the rear side of the suction head 21, through which the absorbed dust is collected. A second motor 23 is fixedly connected inside the fixing block 15. The second motor 23 serves as another power source, driving the subsequent components to complete the vertical rotation of the suction head 21.

[0039] A drive wheel 24 is fixedly connected to the drive end of motor 23. A belt 25 is rotatably connected to the outer side of the drive wheel 24. A driven wheel 26 is rotatably connected to the other end of the belt 25. The drive wheel 24 rotates under the drive of motor 23 and transmits power to the driven wheel 26 through the belt 25. An L-shaped block 27 is fixedly connected to the other end of the driven wheel 26. The L-shaped block 27 rotates under the drive of the driven wheel 26. At the same time, its left side is rotatably connected to the outside of the protective cover 4 to provide support for the rotating shaft 20 and drive the vacuum head 21 to rotate in the vertical direction. It works with motor 16 to realize the all-round movement of the vacuum head 21.

[0040] Reference Figures 2 to 4 The other end of spring 7 is fixedly connected to the inside of the protective cover 4. When the push rod 5 is pressed, spring 7 is compressed, accumulating elastic potential energy; after the push rod 5 is released, spring 7 releases elastic potential energy, pushing the push rod 5 to reset, ensuring that the equipment can return to its initial state for the next operation. The outer side of the linkage rod 6 is slidably connected to the inside of the protective cover 4. When the linkage rod 6 transmits the force of the push rod 5, the direction of movement is precisely constrained, ensuring that the force can be stably transmitted to the connecting rod 8. The opposite side of the sliding column 10 is fixedly connected to the inside of the protective cover 4. The sliding column 10 provides a support point for the rotation of the rotating column 9 and guides the rotating column 9 to rotate along a specific trajectory. The top end of the sealing ring 13 is in contact with the bottom end of the top cover 3.

[0041] The rotating column 9 has an arc-shaped groove inside, and the adjacent side of the sliding column 10 is slidably connected inside the arc-shaped groove. When the connecting rod 8 drives the rotating column 9 to move, the sliding column 10 slides in the arc-shaped groove, converting the linear motion of the connecting rod 8 into the circular motion of the rotating column 9. The sphere 19 has a groove inside, and the outer side of the slider 18 is slidably connected inside the groove. The outer side of the rotating shaft 20 is rotatably connected inside the L-shaped block 27, and the outer side of the driven wheel 26 is rotatably connected inside the fixed block 15. The fixed block 15 provides stable support and rotational constraint for the driven wheel 26.

[0042] The left side of L-shaped block 27 is rotatably connected to the outside of the protective cover 4. The protective cover 4 provides a support point for L-shaped block 27, giving it a stable support during rotation. On the other hand, this connection method allows L-shaped block 27 to rotate around the connection point under the drive of the driven wheel 26, thereby driving the rotating shaft 20 and the vacuum head 21 to rotate in the horizontal direction. The bottom end of L-shaped block 17 is rotatably connected to the outside of the protective cover 4. The protective cover 4 provides support for L-shaped block 17, ensuring its stability when rotating under the drive of motor 16.

[0043] Working principle: Pressing the actuating rod 5 causes the spring 7 to move and undergo elastic deformation, storing elastic potential energy. Simultaneously, the movement of the actuating rod 5 drives the linkage rod 6 upwards, causing the connecting rod 8 to move the two rotating columns 9. The movement of the rotating columns 9 causes the sliding column 10 to slide within its arc-shaped groove. Since the sliding column 10 is fixed, this causes the rotating column 9 to rotate and rotate the limiting block 11 outwards. At this point, the top cover 3 is placed on top of the machine body 2 and pressed down, applying pressure to the sealing ring 13 to ensure the mounting block 12 is in the correct installation position. Releasing the pressure releases the elastic potential energy of the spring 7, causing a series of components to move in the opposite direction, returning the rotating column 9 to its original position and fixing the mounting block 12. This achieves a seal on the equipment, preventing dust spillage during production, preventing the loss of powdery raw materials, reducing material loss, saving production costs, preventing dust from flying in the workshop, reducing the risk of dust explosions, and ensuring production safety.

[0044] Start motor 16, which drives L-shaped block 17 to rotate. L-shaped block 17 transmits the rotational force to ball 19 through slider 18, causing ball 19 to rotate around shaft 20, which in turn drives suction head 21 to rotate horizontally. Start motor 23, which drives drive wheel 24 to rotate. Drive wheel 24 drives L-shaped block 27 to rotate vertically through belt 25 and driven wheel 26, which in turn drives suction head 21 to rotate. This allows for multi-angle adjustment of suction head 21, flexibly adapting to different material flow directions, adsorbing dust raised by material impact or falling, preventing dust from spreading and causing pollution in the workshop, and reducing raw material loss.

[0045] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A food processing production raw material screening apparatus comprising a base (1), characterised in that: The top of the base (1) is fixedly connected to the body (2). Two protective covers (4) are fixedly connected to the outside of the body (2). A push rod (5) is slidably connected inside the two protective covers (4). A spring (7) is fixedly connected to the upper side of the push rod (5). A linkage rod (6) is fixedly connected to the top of the push rod (5). A connecting rod (8) is fixedly connected to the top of the linkage rod (6). Rotating columns (9) are rotatably connected to both ends of the connecting rod (8). A sliding column (10) is slidably connected to the outside of the rotating column (9). A limit block (11) is fixedly connected to the adjacent side of the sliding column (10). An installation block (12) is installed on the inner side of the limit block (11). A top cover (3) is fixedly connected to the top of the installation block (12). A sealing ring (13) is fixedly connected to the top of the body (2). A dust collection component to prevent dust pollution is provided on the front side of the body (2).

2. A food processing production raw material screening apparatus according to claim 1, characterized in that: The dust collection assembly includes a discharge cylinder (14), the rear side of which is fixedly connected to the front side of the body (2). A fixing block (15) is fixedly connected to the top of the discharge cylinder (14). A motor (16) is fixedly connected inside the fixing block (15). An L-shaped block (17) is fixedly connected to the drive end of the motor (16). A slider (18) is rotatably connected inside the L-shaped block (17). A ball (19) is slidably connected to the outer side of the slider (18). The top of the ball (19) is fixedly connected to... There is a rotating shaft (20), and a vacuum head (21) is fixedly connected to the top of the rotating shaft (20). An external pipe (22) is fixedly connected to the rear side of the vacuum head (21). A motor (23) is fixedly connected inside the fixing block (15). A drive wheel (24) is fixedly connected to the drive end of the motor (23). A belt (25) is rotatably connected to the outer side of the drive wheel (24). A driven wheel (26) is rotatably connected to the other end of the belt (25). An L-shaped block (27) is fixedly connected to the other end of the driven wheel (26).

3. A food processing production raw material screening apparatus according to claim 1, characterized in that: The other end of the spring (7) is fixedly connected to the inside of the protective cover (4), and the outer side of the linkage rod (6) is slidably connected to the inside of the protective cover (4).

4. The food processing production raw material screening apparatus according to claim 1, characterized in that: The opposite side of the sliding column (10) is fixedly connected to the inside of the protective cover (4), and the top end of the sealing ring (13) is in contact with the bottom end of the top cover (3).

5. A food processing production raw material screening apparatus according to claim 1, characterized in that: The rotating column (9) has an arc-shaped groove inside, and the adjacent side of the sliding column (10) is slidably connected inside the arc-shaped groove.

6. A food processing production raw material screening apparatus according to claim 2, characterized in that: The sphere (19) has a groove inside, and the slider (18) is slidably connected to the inside of the groove on the outside.

7. A food processing production raw material screening apparatus according to claim 2, characterized in that: The outer side of the rotating shaft (20) is rotatably connected to the inside of the L-shaped block (27), and the outer side of the driven wheel (26) is rotatably connected to the inside of the fixed block (15).

8. A food processing production raw material screening apparatus according to claim 2, characterized in that: The left side of the second L-shaped block (27) is rotatably connected to the outside of the protective cover (4), and the bottom end of the first L-shaped block (17) is rotatably connected to the outside of the protective cover (4).

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