Seal flattening device for rice leakage prevention packaging bag

Abstract

The rice leakage prevention packaging bag sealing and flattening device comprises a connecting block, two driving openings are formed in the upper side of the connecting block, tightening blocks are arranged on the inner walls of the two driving openings in a sliding fit mode, and driving mechanisms are arranged on the upper sides of the two tightening blocks. According to the packaging bag flattening device, the pressure sensor, the stress ring, the spring, the flattening plate and other components are arranged, in the flattening process, after the flattening plate makes contact with a packaging bag, the counter-acting force of the packaging bag can be transmitted to the pressure sensor through the spring and the stress ring in sequence, and the clamping force is monitored through the pressure sensor; the flattening pressure can be accurately adjusted according to different packaging bags, the conditions of sealing wrinkle residue and untight sealing rice leakage caused by insufficient pressure and the problem of packaging bag damage caused by overlarge pressure are effectively avoided, the sealing tightness and the overall flatness of the packaging bag sealing are ensured, the protection effect of packaging on rice is improved, and the packaging efficiency is improved. And the quality of the rice in storage and transportation links is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of grain packaging technology, specifically a sealing and flattening device for leak-proof rice packaging bags. Background Technology

[0002] The rice packaging bag sealing and flattening device is a mechanical device used in the rice packaging process. It is designed to apply appropriate pressure to the sealed area after the opening of the rice-filled packaging bag has been sealed, so as to make it flat and achieve the effect of preventing rice leakage.

[0003] When a rice packaging bag sealing and flattening device is in operation, it first performs a sealing operation. After sealing, it enters the flattening stage. The packaging bag is positioned by a tightening plate, so that the sealed area is below the flattening component. Then, the flattening component applies pressure under the corresponding driving force to flatten the sealed area and its surroundings, ensuring that the packaging is flat and well-sealed. However, in the actual flattening process, the required flattening force varies when flattening packaging bags of different thicknesses or materials. When changing to a thicker packaging bag, it is unclear whether the current clamping force is sufficient. If the pressure is applied according to the original operating habits, the pressure will actually be insufficient for the new packaging bag, and there is no timely feedback for adjustment. This results in either insufficient pressure or excessive pressure. Insufficient pressure will cause residual wrinkles at the seal, poor sealing, and rice leakage. Excessive pressure will damage the packaging bag, increase material waste, and affect the quality of processing. Therefore, it is necessary to design a leak-proof rice packaging bag sealing and flattening device that is highly practical and can detect the flattening pressure. Utility Model Content

[0004] The purpose of this invention is to provide a sealing and flattening device for leak-proof rice packaging bags to solve the problems mentioned in the background art.

[0005] To solve the above technical problems, this utility model provides the following technical solution: a sealing and flattening device for leak-proof rice packaging bags, including a connecting block, two driving ports are opened on the upper side of the connecting block, a tightening block is slidably fitted on the inner wall of each of the two driving ports, a driving mechanism is provided on the upper side of each of the two tightening blocks, and a tightening plate is fixedly connected to the lower side of each of the two tightening blocks.

[0006] One of the two tightening plates has an assembly opening on one side. A detection frame is fixedly connected to the inner wall of the assembly opening. A pressure sensor is fixedly connected to the inner wall of the detection frame. A force-bearing ring is provided on one side of the pressure sensor. A spring is fixedly connected to one side of the force-bearing ring. A pressure plate that slides with the detection frame is fixedly connected to one end of the spring.

[0007] According to the above technical solution, the driving mechanism includes two toothed plates fixedly connected to the upper side of the two tightening blocks, a rotating gear rotatably engaged with the connecting block and meshing with the two toothed plates, an extension block fixedly connected to the upper side of the connecting block, an electric telescopic cylinder fixedly connected to one side of the extension block, and a driving block fixedly connected to the output end of the electric telescopic cylinder and fixedly connected to one of the two toothed plates.

[0008] According to the above technical solution, two limiting grooves are opened on the lower side of the connecting block, and the inner walls of the two limiting grooves are slidably fitted with limiting blocks that are fixedly connected to the tightening block.

[0009] According to the above technical solution, guide openings are provided on both sides of the detection frame, and guide blocks that are fixedly connected to the pressure plate are slidably fitted on the inner walls of the two guide openings.

[0010] According to the above technical solution, a controller is fixedly connected to one side of the detection frame, and the controller is electrically connected to the pressure sensor and the electric telescopic cylinder.

[0011] According to the above technical solution, one of the two tightening plates and the adjacent side of the pressing plate are coated with an anti-stick coating.

[0012] According to the above technical solution, an assembly block is fixedly connected to the connecting block, and a fixing hole is fixedly connected to the assembly block.

[0013] Compared with the prior art, the beneficial effects achieved by this utility model are as follows: By incorporating components such as a pressure sensor, a force ring, a spring, and a pressing plate, this utility model enables the pressing plate to transmit the reaction force of the packaging bag to the pressure sensor sequentially through the spring and the force ring during the flattening process. The pressure sensor monitors the clamping force, allowing for precise adjustment of the flattening pressure according to different packaging bags. This effectively avoids issues such as residual wrinkles and leaks caused by insufficient pressure, as well as damage to the packaging bag caused by excessive pressure. It ensures the sealing performance and overall flatness of the packaging bag, enhances the protective effect of the packaging on the rice, and guarantees the quality of the rice during storage and transportation. Attached Figure Description

[0014] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the overall three-dimensional cross-sectional structure of this utility model;

[0017] Figure 3 This is a schematic diagram of the overall bottom-view three-dimensional structure of this utility model;

[0018] Figure 4 This is an exploded three-dimensional structural diagram of the present invention;

[0019] In the diagram: 1. Connecting block; 2. Drive port; 3. Tightening block; 4. Drive mechanism; 401. Tooth plate; 402. Central gear; 403. Extension block; 404. Electric telescopic cylinder; 405. Drive block; 5. Tightening plate; 6. Assembly port; 7. Detection frame; 8. Pressure sensor; 9. Force ring; 10. Spring; 11. Pressure plate; 12. Limiting groove; 13. Limiting block; 14. Guide port; 15. Guide block; 16. Controller; 17. Anti-stick coating; 18. Assembly block; 19. Fixing hole. Detailed Implementation

[0020] 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.

[0021] Please see Figure 1-4 The present invention provides a technical solution: a sealing and flattening device for a leak-proof rice packaging bag, including a connecting block 1, two driving ports 2 are opened on the upper side of the connecting block 1, a tightening block 3 is slidably fitted on the inner wall of the two driving ports 2, a driving mechanism 4 is provided on the upper side of the two tightening blocks 3, and a tightening plate 5 is fixedly connected to the lower side of the two tightening blocks 3.

[0022] An assembly port 6 is provided on one side of one of the two tightening plates 5. A detection frame 7 is fixedly connected to the inner wall of the assembly port 6. A pressure sensor 8 is fixedly connected to the inner wall of the detection frame 7. A force ring 9 is provided on one side of the pressure sensor 8. A spring 10 is fixedly connected to one side of the force ring 9. A pressure plate 11 that slides with the detection frame 7 is fixedly connected to one end of the spring 10.

[0023] Please see Figure 1The drive mechanism 4 includes two toothed plates 401 fixedly connected to the upper side of the two tightening blocks 3, a central gear 402 rotatably engaged with the connecting block 1 and meshing with the two toothed plates 401, an extension block 403 fixedly connected to the upper side of the connecting block 1, an electric telescopic cylinder 404 fixedly connected to one side of the extension block 403, and a drive block 405 fixedly connected to the output end of the electric telescopic cylinder 404 and fixedly connected to one of the two toothed plates 401. The electric telescopic cylinder 404 serves as a power source, and its output end pushes the drive block 405 connected to it to move, thereby driving the toothed plate 401 fixed to it to move. The toothed plate 401 meshes with the central gear 402 rotatably engaged with the connecting block 1, causing the other toothed plate 401 to move in the opposite direction, thereby allowing the tightening blocks 3 fixed to the two toothed plates 401 to slide in the drive port 2. Finally, the tightening plates 5 connected to the tightening blocks 3 move closer or further apart, completing the clamping or loosening operation of the packaging bag.

[0024] Please see Figure 3 Two limiting grooves 12 are provided on the lower side of the connecting block 1. The inner walls of the two limiting grooves 12 are slidably fitted with limiting blocks 13 that are fixedly connected to the tightening block 3. When the tightening block 3 moves, the moving direction of the tightening block 3 is limited by the sliding of the limiting blocks 13 along the limiting grooves 12, ensuring that the tightening block 3 can only move smoothly in the predetermined direction, thereby ensuring that the tightening plate 5 connected to it can accurately and stably perform corresponding operations on the packaging bag.

[0025] Please see Figure 4 The detection frame 7 has guide openings 14 on both sides. The inner walls of the two guide openings 14 are slidably fitted with guide blocks 15 that are fixedly connected to the pressing plate 11. When the pressing plate 11 is subjected to external force and causes displacement, the guide blocks 15 will slide along the guide openings 14, thereby limiting the movement trajectory of the pressing plate 11 and ensuring that it can only make linear movements, thus ensuring the stability and accuracy of the pressing operation.

[0026] Please see Figure 4 A controller 16 is fixedly connected to one side of the detection frame 7. The controller 16 is electrically connected to the pressure sensor 8 and the electric telescopic cylinder 404. The pressure sensor 8 converts the detected flattening pressure signal into an electrical signal and transmits it to the controller 16. The controller 16 analyzes and judges the signal according to the preset standard, and then controls the telescopic movement of the electric telescopic cylinder 404 to adjust the pressure of the tightening plate 5 and realize the control of the flattening pressure.

[0027] Please see Figure 2One of the two tightening plates 5 and the side adjacent to the pressing plate 11 are coated with an anti-stick coating 17. The anti-stick coating 17 is made of polytetrafluoroethylene as the main component, and the thickness of the anti-stick coating 17 is between 0.1-0.3 mm. The side adjacent to the plate is a smooth surface. Utilizing the good non-stick properties of polytetrafluoroethylene, even if rice or other impurities come into contact with these parts during the sealing and flattening operation of the packaging bag, they are difficult to adhere to them, thereby keeping the surface of the parts relatively clean and avoiding impurities from affecting the packaging operation and the performance of the device.

[0028] Please see Figure 1 An assembly block 18 is fixedly connected to the connecting block 1, and a fixing hole 19 is fixedly connected to the assembly block 18. Through the fixing hole 19, corresponding connectors can be used to securely connect the entire device to other external equipment or support structures, so that the leak-proof rice packaging bag sealing and flattening device can be smoothly integrated into application scenarios such as rice packaging production lines, ensuring that it can be reliably installed and work normally in the corresponding environment.

[0029] The implementation principle of this application is as follows: When in use, the connecting block 1 is first fixed in the corresponding position through the fixing hole 19 on the assembly block 18 and the power is turned on. When the packaging bag moves between the two tightening plates 5, the electric telescopic cylinder 404 starts to work as a power source. Its output end pushes the drive block 405 to move. The drive block 405 drives the toothed plate 401 fixedly connected to it to move. Since the central gear 402 meshes with the two toothed plates 401 and the central gear 402 rotates and engages on the connecting block 1, when one toothed plate 401 moves, it will drive the other toothed plate 401 to move in the opposite direction through the central gear 402, so that the two toothed plates 401 move synchronously towards or away from each other. The two toothed plates 401 are fixedly connected to the two tightening blocks 3 respectively. The tightening block 3 can slide in the drive port 2 of the connecting block 1, and the tightening plate 5 is fixedly connected to its lower side. Thus, the two tightening plates 5 will move closer or further away from each other as the tightening block 3 moves, thereby realizing the clamping or loosening operation of the packaging bag placed between them.

[0030] After the two tightening plates 5 clamp the packaging bag, the pressure plate 11 contacts the sealing part of the packaging bag. As the tightening plates 5 tighten further, the packaging bag generates a reaction force on the pressure plate 11. This force is transmitted to the spring 10 through the pressure plate 11. The spring 10 deforms under the force and transmits the force to the force ring 9, which then applies the force to the pressure sensor 8. The pressure sensor 8 converts the sensed pressure signal into an electrical signal and transmits it to the controller 16. Based on the received pressure signal, the controller 16 determines whether the current pressure meets the preset pressure value requirements for the packaging bag's material, thickness, and other characteristics. If the pressure is insufficient, the controller 16 will control the electric telescopic cylinder 404 to continue pushing, so that the tightening plate 5 applies more pressure; if the pressure is too high, the controller will control the electric telescopic cylinder 404 to retract appropriately to reduce the pressure. This allows for precise adjustment of the flattening pressure according to the packaging bags of different thicknesses and materials, effectively avoiding problems such as residual sealing wrinkles and leakage due to insufficient pressure, as well as damage to the packaging bags caused by excessive pressure. This ensures the sealing of the packaging bag and the overall flatness, improves the quality of the packaging, and guarantees the integrity of the rice during storage and transportation.

[0031] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0032] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the 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 this utility model should be included within the protection scope of this utility model.

Claims

1. A leakage-proof rice bag sealing and flattening device comprising a connecting block (1), characterized in that: The upper side of the connecting block (1) has two drive ports (2), and the inner walls of the two drive ports (2) are slidably fitted with tightening blocks (3). The upper side of the two tightening blocks (3) is provided with a drive mechanism (4), and the lower side of the two tightening blocks (3) is fixedly connected with a tightening plate (5). An assembly port (6) is provided on one side of one of the two tightening plates (5). A detection frame (7) is fixedly connected to the inner wall of the assembly port (6). A pressure sensor (8) is fixedly connected to the inner wall of the detection frame (7). A force ring (9) is provided on one side of the pressure sensor (8). A spring (10) is fixedly connected to one side of the force ring (9). A pressure plate (11) that slides with the detection frame (7) is fixedly connected to one end of the spring (10).

2. The device according to claim 1, wherein: The drive mechanism (4) includes two toothed plates (401) fixedly connected to the upper side of the two tightening blocks (3), a rotating gear (402) rotatably engaged with the connecting block (1) and meshing with the two toothed plates (401), an extension block (403) fixedly connected to the upper side of the connecting block (1), an electric telescopic cylinder (404) fixedly connected to one side of the extension block (403), and a drive block (405) fixedly connected to the output end of the electric telescopic cylinder (404) and fixedly connected to one of the two toothed plates (401).

3. The device according to claim 1, wherein: Two limiting grooves (12) are provided on the lower side of the connecting block (1), and the inner walls of the two limiting grooves (12) are slidably fitted with limiting blocks (13) that are fixedly connected to the tightening block (3).

4. The device according to claim 1, wherein: The detection frame (7) has guide openings (14) on both sides, and the inner walls of the two guide openings (14) are slidably fitted with guide blocks (15) that are fixedly connected to the pressure plate (11).

5. The device according to claim 2, wherein: A controller (16) is fixedly connected to one side of the detection frame (7), and the controller (16) is electrically connected to the pressure sensor (8) and the electric telescopic cylinder (404).

6. The device according to claim 1, wherein: One of the two tightening plates (5) and the adjacent side of the pressure plate (11) are coated with an anti-stick coating (17).

7. The device according to claim 1, wherein: An assembly block (18) is fixedly connected to the connecting block (1), and a fixing hole (19) is fixedly connected to the assembly block (18).

Images