Flour feeding device

Abstract

This utility model relates to the technical field of flour feeding devices, and in particular to a special flour feeding device that can reduce the manufacturing cost of the device, make the packaging bag opening more complete, effectively prevent some flour from flying out, and improve the use effect. It includes a hopper, with a feeding pipe connected to the bottom of the hopper. A control valve is installed on the feeding pipe. A cover is fixedly fitted onto the feeding pipe. A connecting ring is slidably fitted onto the feeding pipe. Three sets of guide rods are equidistantly connected to the bottom of the connecting ring. Three sets of guide holes are equidistantly provided on the cover. Each of the three sets of guide rods is fitted with a tightening spring. A suction pipe and a recovery pipe are respectively connected to the input and output ends of a blower. The annular pipe is fixedly installed inside the cover. Multiple sets of suction ports are equidistantly connected to the inner circumference of the annular pipe. A connecting pipe is provided on the cover. The input end of the connecting pipe is connected to the annular pipe, and the output end of the connecting pipe is connected to a flexible hose. The output end of the flexible hose is connected to the suction pipe.

Description

Technical Field

[0001] This utility model relates to the technical field of flour feeding devices, and in particular to a flour feeding device. Background Technology

[0002] Flour is a powdery substance made from wheat. Based on the amount of protein in flour, it can be divided into high-gluten flour, medium-gluten flour, low-gluten flour, and gluten-free flour.

[0003] After processing, flour needs to be unloaded and bagged. Existing flour unloading devices often use hoppers and valves to control their opening and closing for bagging. However, existing hoppers are prone to clogging, which affects unloading, and flour can also fly around during unloading, causing environmental pollution and waste. Therefore, a new flour unloading device is needed.

[0004] A search revealed a flour feeding device with Chinese patent publication number CN216035243U. While this existing device can solve the existing problems, it requires an electric push rod to drive a clamping plate to hold the packaging bag securely when fixing it. The use of an electric push rod for clamping increases the cost of manufacturing the device. Moreover, it only clamps the two sides of the packaging bag, resulting in the packaging bag opening not opening completely. Furthermore, there is no obstruction above the packaging bag opening, so some flour can still easily fly out during actual bagging, making the device less than ideal. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model provides a flour feeding device that can reduce the manufacturing cost of the device, make the packaging bag opening more complete, effectively prevent some flour from flying out, and has a better working effect.

[0006] Technical solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: a flour feeding device, comprising a hopper, a clamping mechanism, and an absorption mechanism. The bottom of the hopper is connected to a feeding pipe, which is equipped with a control valve. The clamping mechanism includes a cover, which is fixedly fitted onto the feeding pipe. A connecting ring is slidably fitted onto the feeding pipe. Three sets of guide rods are equidistantly connected to the bottom of the connecting ring. The cover has three sets of guide holes equidistantly arranged in annular pattern. The three sets of guide rods are slidably mounted on the cover by engaging with the guide holes. Each set of guide rods is fitted with a tensioning spring, and each tensioning spring has its upper and lower ends respectively... The three sets of guide rods are connected to the connecting ring and the cover. The bottom ends of the three sets of guide rods are all hinged with hinged strips. The bottom ends of the three sets of hinged strips are all hinged with arc-shaped top plates. The outer walls of the three sets of arc-shaped top plates are all in close contact with the inner wall of the cover. The absorption mechanism includes a blower and an annular pipe. The blower is fixedly installed on the hopper. The input end and output end of the blower are respectively connected to a suction pipe and a recovery pipe. The annular pipe is fixedly installed inside the cover. Multiple sets of suction ports are connected annularly at equal intervals on the inner circumference of the annular pipe. A connecting pipe is provided on the cover. The input end of the connecting pipe is connected to the annular pipe. The output end of the connecting pipe is connected to a flexible hose. The output end of the flexible hose is connected to the suction pipe.

[0008] Preferably, the connecting ring has two sets of handles connected symmetrically front and back.

[0009] Preferably, fastening pads are provided on the outer walls of the three sets of arc-shaped top plates.

[0010] Preferably, a sliding sleeve ring is provided on the inner wall of the connecting ring.

[0011] Preferably, each of the three sets of guide holes on the cover is provided with a sliding sleeve.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: In use, initially the clamping spring is in a stretched state. The tension of the clamping spring generates a downward pulling force, causing the connecting ring to push the guide rod. The guide rod, through the hinge plate, pushes the arc-shaped top plate, making the arc-shaped top plate tightly adhere to the inner wall of the cover. When clamping the packaging bag, the connecting ring slides upward, further stretching the clamping spring. The connecting ring drives the guide rod to slide upward, and the guide rod, through the hinge plate, moves the arc-shaped top plate inward, causing the arc-shaped top plate to disengage from the inner wall of the cover. Then, the bag opening is inserted between the inner wall of the cover and the arc-shaped top plate, allowing the cover to be fitted onto the bag opening. Then, the connecting ring is released, and the clamping spring begins to reset, causing the guide rod to push the arc-shaped top plate outward through the hinge plate. During this process, the operator needs to... Hold the curved top plate with your hand to clamp the bag opening onto the cap, fully opening the bag. Then, fill the bag with flour. During filling, activate the exhaust fan. The fan draws air through a hose, creating negative pressure at the exhaust port, which sucks away any flour that flies up during filling, allowing for recycling and preventing waste and pollution. This device has a simple structure, using a clamping mechanism instead of an electric push rod, thus reducing manufacturing costs. The three sets of curved top plates provide a more complete opening for the bag. The cap above the bag opening further absorbs the flying flour, effectively preventing some from escaping and improving performance. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the isometric structure of this utility model;

[0014] Figure 2 This is a schematic diagram of the bottom isometric structure of this utility model;

[0015] Figure 3 This is a schematic diagram of the bottom isometric structure of the clamping mechanism in this utility model;

[0016] Figure 4 This is an isometric structural diagram of the annular tube in this utility model;

[0017] The following are labels in the attached diagram: 1. Hopper; 2. Feed pipe; 3. Cover; 4. Connecting ring; 5. Guide rod; 6. Tightening spring; 7. Hinge strip; 8. Arc-shaped top plate; 9. Exhaust fan; 10. Suction pipe; 11. Recovery pipe; 12. Ring pipe; 13. Connecting pipe; 14. Flexible hose; 15. Exhaust port; 16. Handle; 17. Fastening pad; 18. Sliding ring; 19. Sliding sleeve. Detailed Implementation

[0018] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit its scope.

[0019] Example

[0020] Please see Figures 1-4 This utility model discloses a flour feeding device, comprising a hopper 1, a feeding pipe 2 connected to the bottom of the hopper 1, a control valve on the feeding pipe 2, a cover 3 fixedly fitted onto the feeding pipe 2, a connecting ring 4 slidably fitted onto the feeding pipe 2, three sets of guide rods 5 equidistantly connected to the bottom of the connecting ring 4, and three sets of guide holes equidistantly provided on the cover 3. The three sets of guide rods 5 are slidably mounted on the cover 3 by cooperating with the guide holes. Each set of guide rods 5 is fitted with a tension spring 6, and the upper and lower ends of each tension spring 6 are respectively connected to the connecting ring 4 and the cover 3. The bottom ends of each set of guide rods 5 are hinged to hinge plates 7, and the bottom ends of each set of hinge plates 7 are hinged to arc-shaped top plates 8. The outer walls of the three sets of arc-shaped top plates 8 are all tightly attached to the inner wall of the cover 3. The exhaust fan 9 is fixedly installed on the hopper 1. The input and output ends of the exhaust fan 9 are respectively connected to the suction pipe 10 and the recovery pipe 11. The annular pipe 12 is fixedly installed inside the cover 3. Multiple sets of exhaust ports 15 are connected equidistantly on the inner circumference of the annular pipe 12. The cover 3 is provided with a connecting pipe 13. The input end of the connecting pipe 13 is connected to the annular pipe 12, and the output end of the connecting pipe 13 is connected to the flexible hose 14. The output end of the flexible hose 14 is connected to the suction pipe 10. In use, the tightening spring 6 is initially in a stretched state. The tension of the tightening spring 6 generates a downward pulling force, which causes the connecting ring 4 to push the guide rod 5. The guide rod 5 is connected to the hinge bar. Plate 7 pushes the curved top plate 8, making it press tightly against the inner wall of the cover 3. When clamping the packaging bag, the connecting ring 4 slides upward, and the clamping spring 6 is further stretched. The connecting ring 4 drives the guide rod 5 to slide upward. The guide rod 5 drives the curved top plate 8 to move inward through the hinge plate 7, so that the curved top plate 8 disengages from the inner wall of the cover 3. Then, the bag opening is placed between the inner wall of the cover 3 and the curved top plate 8, so that the cover 3 is placed on the bag opening. Then, the connecting ring 4 is released, and the clamping spring 6 begins to reset, so that the guide rod 5 pushes the curved top plate 8 outward through the hinge plate 7. During this period, the worker needs to hold the curved top plate 8 with his hand so that the curved top plate 8 clamps the bag opening on the cover 3, making the bag... The bag opening is fully opened before flour is filled into the bag. During the filling process, the exhaust fan 9 is activated, and the exhaust fan 9 draws air through the hose 14, creating negative pressure at the exhaust port 15. This sucks away the flour that flies up during filling, allowing it to be recycled and avoiding waste and pollution. The device has a simple structure, using a clamping mechanism instead of an electric push rod, which reduces the manufacturing cost. Three sets of arc-shaped top plates 8 are used for ring clamping, allowing the bag opening to open more completely. The cap 3 covers the top of the bag opening, and the floating flour is absorbed under the cover 3, effectively preventing some flour from flying out and improving the performance.

[0021] Please see Figure 1 The connecting ring 4 is symmetrically connected with two sets of handles 16; by setting the handles 16, the connecting ring 4 can be made more convenient to slide.

[0022] Please see Figure 2 and Figure 3 Each of the three sets of arc-shaped top plates 8 is provided with a fastening pad 17 on its outer wall. By providing the fastening pad 17, the arc-shaped top plate 8 can clamp the packaging bag more tightly and securely, avoiding slippage.

[0023] Please see Figure 1 and Figure 3 A sliding sleeve ring 18 is provided on the inner wall of the connecting ring 4; by providing the sliding sleeve ring 18, the connecting ring 4 can slide more smoothly on the feed tube 2.

[0024] Please see Figure 2 Each of the three sets of guide holes on the cover 3 is provided with a sliding sleeve 19; by setting the sliding sleeve 19, the guide rod 5 can slide more smoothly on the cover 3.

[0025] This utility model discloses a flour feeding device. Its working principle is as follows: Initially, the tension spring 6 is stretched, generating a downward force that causes the connecting ring 4 to push the guide rod 5. The guide rod 5, through the hinge plate 7, pushes the arc-shaped top plate 8, causing the arc-shaped top plate 8 to adhere tightly to the inner wall of the cover 3. When clamping the packaging bag, the connecting ring 4 slides upward, further stretching the tension spring 6. The connecting ring 4 drives the guide rod 5 to slide upward, and the guide rod 5, through the hinge plate 7, moves the arc-shaped top plate 8 inward, causing it to disengage from the inner wall of the cover 3. Then, the bag opening extends into the inner wall of the cover 3 and into the arc-shaped top plate. Between plates 8, the cap 3 is placed on the bag opening, then the connecting ring 4 is released, and the spring 6 is tightened to start resetting. This causes the guide rod 5 to push the arc-shaped top plate 8 outward through the hinged strip plate 7. During this period, the worker needs to hold the arc-shaped top plate 8 with his hand so that the arc-shaped top plate 8 clamps the bag opening onto the cap 3, making the bag opening fully open. Then, flour is filled into the bag. During the filling process, the exhaust fan 9 is started. The exhaust fan 9 draws air through the hose 14, and a negative pressure is generated at the exhaust port 15, which sucks away the flour that flies up during filling, so that it can be recycled and reused, avoiding waste and pollution.

[0026] The flour feeding device of this utility model can be installed, connected or set in a common mechanical way, and can be implemented as long as it can achieve the beneficial effect. The exhaust fan of the flour feeding device of this utility model is purchased from the market. Technical personnel in this industry only need to install and operate it according to the accompanying instruction manual.

[0027] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A flour special-purpose dosing device comprising a hopper (1), characterized in that, It also includes a clamping mechanism and an absorption mechanism; A hopper (1) is provided with a discharge pipe (2) at the bottom of the hopper (1), and a control valve is provided on the discharge pipe (2); The clamping mechanism includes a cover (3), which is fixedly mounted on the feed tube (2). A connecting ring (4) is slidably mounted on the feed tube (2). Three sets of guide rods (5) are equidistantly connected at the bottom of the connecting ring (4). Three sets of guide holes are equidistantly provided on the cover (3). The three sets of guide rods (5) are slidably mounted on the cover (3) by cooperating with the guide holes. Each set of guide rods (5) is fitted with a top spring (6). The top and bottom ends of each set of top springs (6) are connected to the connecting ring (4) and the cover (3) respectively. The bottom ends of the three sets of guide rods (5) are hinged with hinge plates (7). The bottom ends of the three sets of hinge plates (7) are hinged with arc-shaped top plates (8). The outer walls of the three sets of arc-shaped top plates (8) are close to the inner wall of the cover (3). The absorption mechanism includes a blower (9) and an annular pipe (12). The blower (9) is fixedly installed on the hopper (1). The input end and output end of the blower (9) are respectively connected to a suction pipe (10) and a recovery pipe (11). The annular pipe (12) is fixedly installed inside the cover (3). Multiple sets of suction ports (15) are connected in annularly at equal intervals on the inner circumference of the annular pipe (12). A connecting pipe (13) is provided on the cover (3). The input end of the connecting pipe (13) is connected to the annular pipe (12). The output end of the connecting pipe (13) is connected to a flexible hose (14). The output end of the flexible hose (14) is connected to the suction pipe (10).

2. The flour special-purpose dosing device according to claim 1, characterized in that, The connecting ring (4) has two sets of handles (16) connected symmetrically front and back.

3. The flour feeding device according to claim 2, characterized in that, The outer walls of the three sets of arc-shaped top plates (8) are all provided with fastening pads (17).

4. The flour special-purpose dosing device according to claim 3, characterized in that, A sliding sleeve ring (18) is provided on the inner wall of the connecting ring (4).

5. The flour special-purpose dosing device according to claim 4, characterized in that, The cover (3) has three sets of guide holes, each equipped with a sliding sleeve (19).

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