Discharge port opening and closing structure for flour stirring bin
By designing a pull rod and sealing plate structure at the discharge port of the flour mixing silo, combined with a fixing mechanism and a rotating shaft, the problem of inconvenience in using traditional discharge port structures is solved, and fast and reliable discharge port operation is achieved.
Patent Information
- Application Number
- CN202423203083.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-25
- Publication Date
- 2025-11-14
- Estimated Expiration
- 2034-12-25
AI Technical Summary
The existing opening and closing structure of the bottom discharge port of the flour mixing hopper requires repeated rotation of the screw, which is inconvenient to use and is prone to difficulty in rotation due to flour adhesion, reducing the ease of use and reliability.
The design employs a pull rod and a sealing plate, allowing the outlet to open and close by rotating the pull rod laterally and adjusting the sealing plate. Combined with the use of a fixing mechanism and a rotating shaft, this improves the ease and smoothness of operation and avoids the friction problem of traditional lead screws.
It enables rapid opening and closing of the flour mixing hopper outlet, improving ease of use and reliability, reducing rotation difficulties caused by flour adhesion, and extending the service life of the equipment.
Smart Images

Figure CN223541277U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of food mixing and discharging technology, specifically a discharging port opening and closing structure for a flour mixing silo. Background Technology
[0002] In the process of making vermicelli, a flour mixing device is usually used to mix the flour. When using it, some water and flour are poured into the mixing chamber and mixed, and finally discharged through the outlet. The outlet of the flour mixing chamber is usually located at the bottom of the mixing chamber. The main purpose of designing the outlet at this position is to utilize gravity to make it easy for the dough or batter to flow out of the mixing chamber naturally after mixing. The bottom outlet design allows the material to be discharged as completely as possible and reduces residue.
[0003] Currently, factory production lines typically have a conveying device at the bottom outlet of the mixing bin to transport the evenly mixed flour to the next production line. However, the existing opening and closing structure of the bottom outlet of the flour mixing bin is usually controlled by a screw, which requires repeated rotation of the screw to open and close, making it inconvenient and time-consuming. In addition, after long-term use, flour will adhere to the surface of the screw, causing it to rotate unevenly or even fail to open the outlet, reducing the ease of use. Therefore, this invention is proposed. Summary of the Invention
[0004] The main purpose of this utility model is to solve the above-mentioned existing technical problems and provide a discharge port opening and closing structure for a flour mixing hopper.
[0005] The specific solution of this utility model is: a discharge port opening and closing structure for a flour mixing hopper, including a mounting frame, on which a hopper body is mounted. The bottom of the hopper body has a discharge port, and an opening and closing structure is provided at the bottom end of the discharge port. The opening and closing structure includes a movable block, which is rotatably mounted on the bottom of the hopper body. A pull rod is rotatably connected to the surface of the movable block. When the movable block rotates, the pull rod rotates laterally. One end of the pull rod has a sealing plate. When the pull rod rotates upward, the sealing plate is pressed tightly against the discharge port. The sealing plate is located directly below the discharge port. A limiting block is provided at the end of the pull rod away from the sealing plate. A fixing mechanism is mounted on the mounting frame for fixing the pull rod. The rod, the fixing mechanism includes a mounting block, the mounting block is fixedly installed on one side of the mounting frame, a connector is rotatably connected to the mounting frame, the connector has a hollow center and a through groove at the top, a guide rod passes through the through groove and is movably connected to the through groove, a fixing block is fixedly connected to the top of the guide rod, the fixing block has a slot hollowed out in the center, the diameter of the fixing block is larger than the diameter of the through groove, a base plate is fixedly connected to the bottom end of the guide rod, a spring is fitted on the surface of the guide rod and the spring is located on the top of the base plate, a pressure rod is fixedly connected to the bottom end of the base plate, the two ends of the pressure rod are rotatably connected to the connector, when the slot is fitted on the surface of the limiting block, the rod is fixed.
[0006] According to the above technical solution, by rotating the pull rod downwards to move the sealing plate away from the discharge port, friction is reduced. Then, by rotating the pull rod, the sealing plate is misaligned with the discharge port, and the flour in the silo can be discharged.
[0007] Furthermore, one end of the pressure rod is rotatably connected to a rotating shaft, which passes through the pressure rod and the connecting piece in sequence and is rotatably connected to both ends of the rotating shaft, which is rotatably connected to the mounting block.
[0008] According to the above technical solution, the smoothness of rotation is improved by using a single rotating shaft design, thus avoiding the occurrence of failures.
[0009] Furthermore, the angle between the pressure rod and the base plate is 35°~45°.
[0010] According to the above technical solution, by setting an angle between the pressure rod and the base plate, the comfort of the operator in using the pressure rod is improved, and the base plate can be lifted with a gentle press.
[0011] Furthermore, the pull rod is L-shaped.
[0012] According to the above technical solution, the L-shape facilitates the snap-fit of the card slot.
[0013] Compared with the prior art, this utility model has the following advantages: the opening and closing structure can be mechanically fixed by a fixing block, and can be quickly fixed and disassembled by a pressure rod, which improves the ease of use of the opening and closing outlet and avoids the need for repeated rotation of the screw rod for opening and closing in the traditional way. At the same time, the movable pull rod drives the sealing plate to adjust the angle downward, avoiding hard friction between the sealing plate and the flour clumps at the outlet, improving the smoothness of use and service life, and further demonstrating the practicality and convenience of the opening and closing structure of the flour mixing silo outlet. Attached Figure Description
[0014] Figure 1 This is a three-dimensional schematic diagram of the present invention;
[0015] Figure 2 yes Figure 1 A schematic diagram of the right-side cross-section;
[0016] Figure 3 yes Figure 2 Enlarged view of the structure at point B;
[0017] Figure 4 yes Figure 1 Enlarged view of the structure at point A;
[0018] In the diagram: 1. Mounting frame; 2. Bin body; 3. Discharge port; 4. Movable block; 5. Tie rod; 6. Sealing plate; 7. Limiting block; 8. Mounting block; 9. Connecting piece; 10. Through groove; 11. Guide rod; 12. Fixing block; 13. Slot; 14. Base plate; 15. Spring; 16. Pressure rod; 17. Rotating shaft. Detailed Implementation
[0019] See Figure 1-4This embodiment describes a discharge port opening and closing structure for a flour mixing silo. A silo body 2 is mounted on the top of a mounting frame 1. The bottom of the silo body 2 has a hollowed-out discharge port 3. The bottom of the discharge port 3 has an opening and closing structure, which includes a movable block 4. The movable block 4 is rotatably mounted on the bottom of the silo body 2. A pull rod 5 is rotatably connected to the surface of the movable block 4. When the movable block 4 rotates, the pull rod 5 rotates laterally, causing its sealing plate 6 to be misaligned with the discharge port 3. A sealing plate 6 is welded to one end of the pull rod 5. When the pull rod 5 rotates upwards, the sealing plate 6 is pressed tightly against the discharge port 3, achieving a sealing effect. The sealing plate 6 is located directly below the discharge port 3. A limit block 7 is integrally formed at the end of the pull rod 5 away from the sealing plate 6. A fixing mechanism is mounted on the mounting frame 1 to fix the pull rod 5. The fixing mechanism includes a... Mounting block 8 is welded to one side of mounting frame 1. A connector 9 is rotatably connected to mounting frame 1. The connector 9 has a hollow center and a through groove 10 at the top. A guide rod 11 passes through the through groove 10 and is movably connected to the through groove 10. A fixing block 12 is fixedly connected to the top of the guide rod 11. A slot 13 is hollowed out in the center of the fixing block 12. The diameter of the fixing block 12 is larger than the diameter of the through groove 10, so that the fixing block 12 will not fall off. A base plate 14 is fixedly connected to the bottom of the guide rod 11. A spring 15 is fitted on the surface of the guide rod 11 and is located on the top of the base plate 14. A pressure rod 16 is fixedly connected to the bottom of the base plate 14. The two ends of the pressure rod 16 are rotatably connected to the connector 9. When the slot 13 is fitted onto the surface of the limiting block 7, the pull rod 5 is fixed.
[0020] Furthermore, one end of the pressure rod 16 is rotatably connected to a rotating shaft 17. The rotating shaft 17 passes through the pressure rod 16 and the connector 9 in sequence and is rotatably connected to both. Both ends of the rotating shaft 17 are rotatably connected to the mounting block 8, so that the pressure rod 16 and the connector 9 can both rotate by a single rotating shaft 17, thus reducing the failure rate.
[0021] Furthermore, the angle between the pressure rod 16 and the base plate 14 is 35°~45°, which makes it easier for the operator to press.
[0022] Furthermore, the pull rod 5 is L-shaped, which facilitates the limiting of the slot 13.
[0023] The working principle of this embodiment is as follows: When the discharge port 3 is closed, the sealing plate 6 is used to seal the discharge port 3 by rotating the pull rod 5. Then, the pressure rod 16 is pressed to push the bottom plate 14 upward. At this time, the bottom plate 14 drives the guide rod 11 to move upward in the through groove 10, and at the same time drives the spring 15 to perform elastic storage movement. When the guide rod 11 drives the fixing block 12 to extend upward, the slot 13 is driven to fit on the limit block 7 by rotating the connecting piece 9. Then, the pressure rod 16 is released. At this time, the spring 15 pushes the pressure rod 16 upward again, pushing the bottom plate 14 downward again. Conversely, the pressure rod 16 is released. The base plate 14 drives the guide rod 11 and the fixing block 12 to move downward, so that the slot 13 locks the limiting block 7 downward to achieve a fixing effect. At the same time, the pull rod 5 is pressed downward by the fixing block 12, which drives the sealing plate 6 at the other end to rotate upward and lift it to further fit the discharge port 3, improving the sealing effect. When the discharge port 3 is opened, press the pressure rod 16 again to remove the slot 13 from the limiting block 7. Then, by rotating the pull rod 5, the pull rod 5 is rotated through the movable block 4. When the sealing plate 6 is misaligned with the discharge port 3, the discharge port 3 can discharge material, improving the convenience of use.
Claims
1. A discharge port opening and closing structure for a flour mixing hopper, comprising a mounting frame, wherein a hopper body is mounted on the mounting frame, and a discharge port is provided at the bottom of the hopper body, characterized in that: The device includes an opening and closing structure at the bottom of the discharge port. This structure comprises a movable block rotatably mounted on the bottom of the hopper. A pull rod is rotatably connected to the surface of the movable block. Rotation of the movable block causes the pull rod to rotate laterally. A sealing plate is located at one end of the pull rod. When the pull rod rotates upward, the sealing plate is pressed tightly against the discharge port. The sealing plate is located directly below the discharge port. A limiting block is located at the end of the pull rod away from the sealing plate. A fixing mechanism is mounted on the mounting frame to fix the pull rod. This fixing mechanism includes a mounting block, which is fixedly mounted on one side of the mounting frame. The mounting bracket is rotatably connected to a connector. The connector has a hollow center and a through groove at its top. A guide rod passes through the through groove and is movably connected to the through groove. A fixing block is fixedly connected to the top of the guide rod. The fixing block has a hollow center with a slot. The diameter of the fixing block is larger than the diameter of the through groove. A base plate is fixedly connected to the bottom of the guide rod. A spring is fitted on the surface of the guide rod and is located on the top of the base plate. A pressure rod is fixedly connected to the bottom of the base plate. Both ends of the pressure rod are rotatably connected to the connector. When the slot is fitted onto the surface of the limiting block, the pull rod is fixed.
2. The discharge port opening and closing structure for a flour mixing silo according to claim 1, characterized in that: One end of the pressure rod is rotatably connected to a rotating shaft, which passes through the pressure rod and the connecting piece in sequence and is rotatably connected to both ends of the rotating shaft.
3. The discharge port opening and closing structure for a flour mixing silo according to claim 1 or 2, characterized in that: The angle between the pressure bar and the base plate is 35°~45°.
4. The discharge port opening and closing structure for a flour mixing silo according to claim 1 or 2, characterized in that: The pull rod is L-shaped.