Automatic stop type flour filling head for flour storage tank
By integrating a weighing module and an anti-clogging mechanism into the flour filling head, combined with flange connection and bag hanging design, the weighing error and environmental sensitivity issues of flour filling equipment are solved, achieving filling accuracy and convenient equipment maintenance, and improving production efficiency.
Patent Information
- Application Number
- CN202520718020.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-16
- Publication Date
- 2026-02-24
- Estimated Expiration
- 2035-04-16
AI Technical Summary
Existing flour filling equipment suffers from large weighing errors and high environmental sensitivity, resulting in inaccurate filling volumes.
A self-stopping flour filling head was designed, integrating a weighing module and a controller, combined with an anti-blocking mechanism and a bag-hanging mechanism to ensure weighing accuracy, and using a scraper to prevent clogging. The flange connection facilitates disassembly and assembly.
This has improved the weighing accuracy of the flour filling process and made the equipment easy to maintain, reducing errors and downtime, and increasing production efficiency.
Smart Images
Figure CN223935016U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of flour processing technology, specifically a self-stopping flour filling head for flour storage tanks. Background Technology
[0002] Flour typically refers to wheat flour, which is produced by processing wheat through multiple processes, storing it in storage tanks, and then filling and packaging it. The filling operation of flour storage tanks is a crucial step in the flour processing production line, and its efficiency and accuracy directly affect production safety and product quality. Currently, there are two main methods for flour filling in the industry. One method uses an external weighing scale to weigh the packaging bags and then uses the feedback signal to control the filling valve. This method suffers from cumulative errors due to the separation of the weighing module and the filling port. The other method uses pneumatic conveying, which uses air pressure to force flour from the storage tank into the packaging bags, and estimates the filling volume using a flow meter. This method is highly sensitive to environmental conditions; fluctuations in air pressure or changes in flour humidity can increase the filling volume error. Therefore, there is a need to develop a self-stopping flour filling head for flour storage tanks that can ensure accurate weighing during flour filling. Utility Model Content
[0003] To address the above technical problems, this utility model provides a self-stopping flour filling head for flour storage tanks that can ensure the accuracy of flour filling and weighing, thereby solving the problem of large weighing errors in existing flour filling equipment.
[0004] To solve the above-mentioned technical problems, the present invention provides a self-stopping flour filling head for a flour storage tank, comprising a storage tank, a feeding valve fixedly connected to the feeding pipe of the storage tank, a filling head detachably connected to the lower end of the feeding pipe, the filling head including a fixing frame and a discharge pipe, the fixing frame being detachably connected to the feeding pipe, the feeding pipe extending into the discharge pipe, a weighing module fixedly connected to the fixing frame, a support plate fixedly connected to the upper outer side of the discharge pipe, the support plate being fixedly connected to the upper surface of the weighing module, a discharge valve fixedly connected to the discharge pipe, a bag hanging mechanism fixedly connected to the lower end of the discharge pipe, the weighing module being communicatively connected to a controller, and the discharge valve being controlled by the controller.
[0005] Furthermore, a first flange is fixedly connected to the lower end of the feeding pipe, and a second flange is fixedly connected to the upper end of the fixing bracket. The first flange and the second flange are connected by flange bolts.
[0006] Furthermore, an anti-blocking mechanism is provided at the lower part of the discharge pipe. The anti-blocking mechanism includes a drive motor, a commutator, and a scraper. The drive motor is fixedly connected to the outside of the discharge pipe, and the commutator is fixedly connected to the inside of the discharge pipe through a connecting rod. The output shaft of the drive motor is connected to the input end of the commutator, and the output end of the commutator is connected to the scraper. The scraper is in contact with the inner wall of the discharge pipe.
[0007] Furthermore, the commutator includes a transmission box, which is fixedly connected to the discharge pipe via a connecting rod. The output shaft of the drive motor extends into the transmission box and is fixedly connected to a driving bevel gear. A driven bevel gear is rotatably connected to the transmission box via a connecting shaft. The driving bevel gear and the driven bevel gear mesh and transmit power. The scraper is fixedly connected to the connecting shaft.
[0008] Furthermore, a mounting bracket is fixedly connected to the lower part of the discharge pipe, and a load-bearing plate is fixedly connected to the lower end of the mounting bracket.
[0009] Furthermore, the discharge valve is one of an electric slide gate valve, an electric powder butterfly valve, or a rotary valve.
[0010] Furthermore, the bag hanging mechanism includes hooks and buckles, and a plurality of hooks are fixedly connected at intervals at the lower end of the discharge tube, with the buckle rotatably connected to one of the hooks.
[0011] This utility model has the following advantages compared with the prior art:
[0012] 1. This utility model integrates a weighing module on a fixed frame, a support plate on the upper part of the discharge pipe connected to the weighing module, a discharge valve on the discharge pipe, and a controller for communication between the weighing module and the controller. The discharge valve is controlled by the controller. A bag hanging mechanism is connected to the lower end of the discharge pipe for easy connection of packaging bags. By integrating the weighing module on the discharge pipe, the accuracy of the weighing results can be ensured during the flour packaging process.
[0013] 2. This utility model provides a first flange at the lower end of the feeding pipe and a second flange at the upper end of the fixing frame. The first flange and the second flange are connected by flange bolts, which facilitates the disassembly and assembly of the filling head and makes it easy to disassemble and replace it when it malfunctions. It does not require long-term downtime and has little impact on the normal flour filling process.
[0014] 3. This utility model, by setting an anti-blocking mechanism in the discharge pipe, can use a drive motor to drive the scraper to rotate and continuously scrape the inner wall of the discharge pipe, so as to prevent flour from sticking to the inner wall of the discharge pipe and causing blockage, thus affecting filling efficiency.
[0015] 4. This utility model, by fixing a mounting frame to the outside of the discharge pipe and fixing a load-bearing plate to the lower end of the mounting frame, can place the packaging bag on the load-bearing plate, thus avoiding the packaging bag shaking during the filling process and affecting the accuracy of the weighing results. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the structure of this utility model.
[0017] Figure 2 for Figure 1 A magnified view of a portion of region A in the middle.
[0018] In the diagram: 1. Storage tank, 2. Discharge valve, 3. First flange, 4. Second flange, 5. Discharge pipe, 6. Fixing frame, 7. Weighing module, 8. Support plate, 9. Discharge valve, 10. Hook, 11. Lock, 12. Mounting frame, 13. Load-bearing plate, 14. Drive motor, 15. Scraper, 16. Transmission box, 17. Driving bevel gear, 18. Driven bevel gear, 19. Connecting shaft. Detailed Implementation
[0019] The present invention will be further described below with reference to the accompanying drawings.
[0020] like Figure 1 , 2 The diagram shows a self-stopping flour filling head for a flour storage tank, comprising a storage tank 1, a feeding valve 2 fixedly connected to the feeding pipe of the storage tank 1, a filling head detachably connected to the lower end of the feeding pipe, the filling head including a fixing frame 6 and a discharge pipe 5, the fixing frame 6 being detachably connected to the feeding pipe, the feeding pipe extending into the discharge pipe 5, at least three weighing modules 7 fixedly connected to the inner side of the fixing frame 6, a support plate 8 fixedly connected to the upper outer side of the discharge pipe 5, the support plate 8 being fixedly connected to the upper surface of the weighing modules 7, a discharge valve 9 fixedly connected to the discharge pipe 5, a bag hanging mechanism fixedly connected to the lower end of the discharge pipe 5, the weighing modules 7 being communicatively connected to a controller, and the discharge valve 9 being controlled by the controller.
[0021] It should be noted that in this embodiment, in order to ensure smooth material feeding and avoid dust escaping during the feeding process, the outer diameter of the feeding pipe is smaller than the inner diameter of the discharge pipe 5. The upper end of the discharge pipe 5 is fixedly connected with a sealing ring of elastic material, and the lower end of the feeding pipe extends through the sealing ring into the interior of the discharge pipe 5.
[0022] The working process of this embodiment is as follows: When flour needs to be filled, the filling head is first connected to the feeding pipe using the fixing frame 6. Then, the packaging bag is hung on the bag hanging mechanism, and the feeding valve 2 is opened. The flour enters the discharge pipe 5 through the feeding pipe, where the controller performs tare. After that, the discharge valve 9 is opened to discharge the flour. During the discharge process, the weighing module 7 weighs the material in real time and feeds back the weighing signal to the controller. When the set weight is reached, the controller controls the discharge valve 9 to automatically close and stop the discharge. The packaging bag is then removed and packaged.
[0023] To facilitate connection between the filling head and the discharge pipe and ensure a tight seal, a first flange 3 is fixedly connected to the lower end of the discharge pipe, and a second flange 4 is fixedly connected to the upper end of the fixing bracket 6. The first flange 3 and the second flange 4 are connected by flange bolts. The discharge pipe passes through a through hole in the second flange 4.
[0024] The working process of this embodiment is as follows: the feed pipe passes through the through hole on the second flange 4 and extends into the discharge pipe 5, and the first flange 3 and the second flange 4 are connected by flange bolts.
[0025] To prevent flour from clogging the discharge pipe 5 during the feeding process, an anti-clogging mechanism is installed at the lower part of the discharge pipe 5. The anti-clogging mechanism includes a drive motor 14, a commutator, and a scraper 15. The drive motor 14 is fixedly connected to the outside of the discharge pipe 5 via a motor connecting bracket and bolts. The commutator is fixedly connected to the inside of the discharge pipe 5 via two connecting rods. The output shaft of the drive motor 14 is connected to the input end of the commutator, and the output end of the commutator is connected to the scraper 15. The scraper 15 is in contact with the inner wall of the discharge pipe 5. It should be noted that in this embodiment, the scraper 15 has an "L" shaped structure.
[0026] To ensure stable rotation of the scraper 15 via the drive motor 14, the commutator includes a transmission box 16. The transmission box 16 is fixedly connected to the discharge pipe 5 via a connecting rod. The output shaft of the drive motor 14 extends into the transmission box 16 and is fixedly connected to a driving bevel gear 17. A driven bevel gear 18 is rotatably connected to the transmission box 16 via a connecting shaft 19. The driving bevel gear 17 and the driven bevel gear 18 mesh and transmit power. The scraper 15 is fixedly connected to the connecting shaft 19. It should be noted that, in this embodiment, to prevent flour from accumulating at the top of the transmission box 16, a conical protective shell is fixedly connected to the top of the transmission box 16.
[0027] The working process of this embodiment is as follows: During the flour filling process, the drive motor 14 is controlled to run. The drive motor 14 causes the active bevel gear 17 to rotate. Under the meshing action, the active bevel gear 17 drives the driven bevel gear 18 to rotate. The driven bevel gear 18 drives the connecting shaft to rotate. The connecting shaft drives the scraper 15 to rotate. The scraper 15 scrapes the inner wall of the discharge pipe 5 to prevent flour from sticking to the inner wall of the discharge pipe and causing blockage of the discharge pipe.
[0028] To facilitate the placement of packaging bags, further enhance the safety of packaging bags during flour filling, prevent them from falling, and avoid inaccurate weighing due to shaking of packaging bags during filling, a mounting bracket 12 is fixedly connected to the lower part of the discharge pipe 5, and a load-bearing plate 13 is fixedly connected to the lower end of the mounting bracket 12.
[0029] The working process of this embodiment is as follows: after the packaging bag is hung on the bag hanging mechanism, the lower end of the packaging bag is located on the load-bearing plate 13. During the filling process, the load-bearing plate 13 can support the packaging bag.
[0030] To facilitate smooth flour discharge, the discharge valve 9 is one of an electric slide gate valve, an electric powder butterfly valve, or a rotary valve. It should be noted that in this embodiment, the discharge valve 9 is an electric slide gate valve, which is an existing device; its specific structure will not be described in detail here.
[0031] To facilitate the hanging of packaging bags, the bag hanging mechanism includes hooks 10 and locks 11. Four hooks 10 are fixedly connected at intervals on the outer side of the lower end of the discharge pipe 5. Among them, the hook 10 located in front of the filling head is rotatably connected to the lock 11. The lock 11 has a "U" shaped structure, with one end hinged to the hook 10 and the other end fixedly connected to a handle.
[0032] The working process of this embodiment is as follows: When hanging the packaging bag, hang the upper edge of the packaging bag on the hook 10 and pull it tight. First, lift the buckle 11, then pull the excess packaging bag toward the side connected to the buckle 11 and hang it on the hook 10. Press down the buckle 11 to fix the packaging bag.
[0033] The working principle of this embodiment is as follows:
[0034] During flour packaging, the filling head is first connected to the feeding pipe, the feeding valve 2 is opened, and the packaging bag is hung on the bag hanging mechanism. The discharge valve 9 is then opened to begin flour filling. During the filling process, the weighing module 7 weighs the flour. Once the weight set by the controller is reached, the discharge valve 9 is automatically closed, and the drive motor 14 is simultaneously started to rotate, driving the scraper 15 to rotate and preventing flour from sticking to the inner wall of the discharge pipe 5. When the filling head does not need to be replaced, the feeding valve 2 remains open. If the filling head malfunctions, the feeding valve 2 is closed, and the head is disassembled for repair or replacement.
Claims
1. A self-stopping flour filling head for a flour storage tank, comprising a storage tank (1), wherein a discharge valve (2) is fixedly connected to the discharge pipe of the storage tank (1), characterized in that: The lower end of the feeding pipe is detachably connected to a filling head. The filling head includes a fixing frame (6) and a discharge pipe (5). The fixing frame (6) is detachably connected to the feeding pipe. The feeding pipe extends into the discharge pipe (5). A weighing module (7) is fixedly connected to the fixing frame (6). A support plate (8) is fixedly connected to the upper outer side of the discharge pipe (5). The support plate (8) is fixedly connected to the upper surface of the weighing module (7). A discharge valve (9) is fixedly connected to the discharge pipe (5). A bag hanging mechanism is fixedly connected to the lower end of the discharge pipe (5). The weighing module (7) is communicatively connected to the controller. The discharge valve (9) is controlled by the controller.
2. The self-stopping flour filling head for a flour storage tank according to claim 1, characterized in that: The lower end of the feed pipe is fixedly connected to a first flange (3), and the upper end of the fixing frame (6) is fixedly connected to a second flange (4). The first flange (3) and the second flange (4) are connected by flange bolts.
3. The self-stopping flour filling head for a flour storage tank according to claim 1, characterized in that: The lower part of the discharge pipe (5) is provided with an anti-blocking mechanism, which includes a drive motor (14), a commutator, and a scraper (15). The drive motor (14) is fixedly connected to the outside of the discharge pipe (5), and the commutator is fixedly connected to the inside of the discharge pipe (5) through a connecting rod. The output shaft of the drive motor (14) is connected to the input end of the commutator, and the output end of the commutator is connected to the scraper (15). The scraper (15) is in contact with the inner wall of the discharge pipe (5).
4. The self-stopping flour filling head for a flour storage tank according to claim 3, characterized in that: The commutator includes a transmission box (16), which is fixedly connected to the discharge pipe (5) via a connecting rod. The output shaft of the drive motor (14) extends into the transmission box (16) and is fixedly connected to a driving bevel gear (17). A driven bevel gear (18) is rotatably connected to the transmission box (16) via a connecting shaft (19). The driving bevel gear (17) meshes with the driven bevel gear (18) for transmission. The scraper (15) is fixedly connected to the connecting shaft (19).
5. The self-stopping flour filling head for a flour storage tank according to claim 1, characterized in that: The lower part of the discharge pipe (5) is fixedly connected to the mounting bracket (12), and the lower end of the mounting bracket (12) is fixedly connected to the load-bearing plate (13).
6. The self-stopping flour filling head for a flour storage tank according to claim 1, characterized in that: The discharge valve (9) is one of an electric slide gate valve, an electric powder butterfly valve, or a star-shaped discharge valve.
7. The self-stopping flour filling head for a flour storage tank according to claim 1, characterized in that: The bag hanging mechanism includes hooks (10) and locks (11). Several hooks (10) are fixedly connected at intervals at the lower end of the discharge pipe (5), and the locks (11) are rotatably connected to one of the hooks (10).