A sealing device for rice packaging

Abstract

The utility model relates to rice production field discloses a sealing device for rice packaging, including conveying table, the inside of conveying table is equipped with conveyer belt, the conveyer belt is used for placing rice packaging bag, the top sliding installation of conveying table has two roller frames, and the same hot pressing base is fixedly installed to the side of mutual approach of two roller frames, the hot pressing base sliding installation is in the top of conveying table, the inside of hot pressing base is equipped with hot pressing mechanism, the top fixed mounting of conveying table has the distribution base, the utility model has the following advantages and effect: through conveyer belt delivery, the mode of roller extrusion bag mouth carries rice packaging bag and carries out hot pressing, has solved the problem that the existing equipment cannot carry out continuous hot pressing and seals, and can distribute rice packaging bag, prevent multiple rice packaging bags from moving to the hot pressing and sealing area simultaneously at the same time, lead to the emergence of the condition that hot pressing and sealing are not sufficient.

Description

Technical Field

[0001] This utility model relates to the field of rice production technology, and in particular to a sealing device for rice packaging. Background Technology

[0002] Rice processing and packaging involves the weighing, bagging (boxing), and sealing of the finished rice after processing. By selecting appropriate packaging materials (such as woven bags and vacuum bags) and combining them with moisture-proof, insect-proof, and freshness-preserving technologies, the rice is packaged according to specifications, and product information (such as origin, ingredients, and shelf life) is labeled. This protects the rice from contamination and spoilage during storage and transportation, enhances product identification, and meets the needs of market circulation and consumer purchasing. It is a crucial final link in the rice processing industry chain.

[0003] In existing technologies, rice processing and packaging often involves sealing rice bags using heat-pressing equipment. However, current equipment requires manual labor to place the rice-filled bags into the heat-pressing area before sealing, resulting in high labor costs. Furthermore, because rice tends to flow easily within the bags, workers must pinch the opening tightly before placing the bag into the heat-pressing equipment for heat pressing, and then remove it and replace it with an unsealed rice bag. Consequently, continuous heat-pressing sealing is not possible, leading to low production efficiency.

[0004] Therefore, we propose a sealing device for rice packaging to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide a sealing device for rice packaging, which has the effects of continuous sealing and high degree of automation.

[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a sealing device for rice packaging, comprising a conveyor table, a conveyor belt on the inner side of the conveyor table for placing rice packaging bags, two roller frames slidably mounted on the top of the conveyor table, a hot pressing base fixedly mounted on the side of the two roller frames that are close to each other, the hot pressing base slidably mounted on the top of the conveyor table, a hot pressing mechanism on the inner side of the hot pressing base, the hot pressing mechanism including two graphene heating plates; a material dispensing base fixedly mounted on the top of the conveyor table, a material dispensing mechanism on the material dispensing base, and a stop wheel rotatably mounted on the top of the material dispensing base.

[0007] A further feature of this invention is that two push cylinders are fixedly installed on the top of the conveyor platform, and the piston ends of the two push cylinders are respectively fixedly connected to the corresponding roller frames.

[0008] By adopting the above technical solution, the corresponding roller frame can be moved by two push cylinders.

[0009] A further feature of this invention is that multiple rollers in a uniformly distributed manner are rotatably mounted on the inner sides of both roller frames.

[0010] By adopting the above technical solution, it is easy to apply pressure to the opening of the rice packaging bag to prevent rice leakage during transportation.

[0011] A further feature of this invention is that a guide clamp is fixedly installed on one side of the right roller frame, one of the two roller frames.

[0012] By adopting the above technical solution, it is easy for rice packaging bags to enter the roller frame, so that the rollers can squeeze and seal the opening of the rice packaging bags.

[0013] The present invention is further configured such that: the hot pressing mechanism includes two hot pressing plates, two guide columns and two linkage columns; two guide columns are fixedly installed on the inner side of the hot pressing base; two hot pressing plates are slidably sleeved on the two guide columns; a driving chamber is opened inside the hot pressing base; two limiting holes are opened on one inner wall of the hot pressing base; linkage columns are slidably installed on the inner side of the two limiting holes; the two linkage columns are fixedly connected to the corresponding hot pressing plates; and two graphene heating plates are fixedly installed on one side of the corresponding hot pressing plates.

[0014] By adopting the above technical solution, it is easy to move the graphene electric heating plate by driving the hot press plate, thereby heat-sealing the rice packaging bag.

[0015] A further feature of this invention is that a rotating wheel is rotatably mounted on one side of the inner wall of the driving chamber, and two linkage holes are opened on one side of the rotating wheel, with two linkage columns slidably mounted on the inner side of the corresponding linkage holes.

[0016] By adopting the above technical solution, the two linkage columns can be moved through the linkage hole.

[0017] A further feature of this invention is that a servo motor is fixedly installed on the bottom inner wall of the drive chamber, a linkage gear is fixedly sleeved on the outer side of the rotating wheel, a drive gear is rotatably installed on one side inner wall of the drive chamber, the drive gear meshes with the linkage gear, and the output shaft of the servo motor is fixedly connected to the drive gear.

[0018] By adopting the above technical solution, the rotation of the drive gear can drive the linkage gear to rotate, which in turn drives the rotating wheel to rotate.

[0019] A further feature of this invention is that the material distribution mechanism includes a rotating shaft, a ratchet, a limiting block, a traction rope, a flipping metal strip, and a connecting post. The rotating shaft rotatably passes through the top of the material distribution base. The stop wheel is fixedly installed at the top of the rotating shaft. The ratchet is fixedly installed at the bottom of the rotating shaft. A sliding groove is provided at the bottom of the material distribution base. A limiting block slides inside the sliding groove. The limiting block is adapted to the ratchet. A traction rope is fixedly installed on one side of the limiting block. A columnar protrusion is provided at the top of the material distribution base. A flipping metal strip is rotatably sleeved on the columnar protrusion. A connecting post is fixedly installed on the outer side of the flipping metal strip. The other end of the traction rope is fixedly connected to the connecting post.

[0020] By adopting the above technical solution, it is easy to move the limit block by using a traction rope.

[0021] A further feature of this invention is that a groove is provided on one side of the inner wall of the sliding groove, a spring is fixedly installed on one side of the inner wall of the groove, and the other end of the spring is fixedly connected to the limiting block.

[0022] By adopting the above technical solution, the limit block can be reset by the spring.

[0023] A further feature of this invention is that four material distribution rods are fixedly installed on the outer side of the rod wheel, and each of the four material distribution rods is fixedly fitted with a rubber sleeve.

[0024] By adopting the above technical solution, damage to rice packaging bags can be prevented from being caused by the material distribution bar.

[0025] This application includes at least one of the following beneficial technical effects:

[0026] 1. This application utilizes a hot-pressing mechanism composed of rotating wheels and hot-pressing plates. By driving two hot-pressing plates closer together, two graphene electric heating plates are driven closer together to heat-press rice packaging bags, thereby completing the sealing. Furthermore, the rice packaging bags are transported by conveyor belt and the bag mouth is squeezed by rollers for hot pressing, which solves the problem that existing equipment cannot perform continuous hot-pressing sealing.

[0027] 2. This application utilizes a material distribution mechanism consisting of a stop wheel and a ratchet to distribute rice packaging bags, creating a time difference during transportation. This prevents multiple rice packaging bags from moving to the heat-sealing area simultaneously, thus avoiding insufficient heat sealing and increasing the practicality and stability of the equipment. Attached Figure Description

[0028] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0029] Figure 1 This is a three-dimensional structural diagram of a sealing device for rice packaging proposed in this utility model;

[0030] Figure 2 This is a three-dimensional structural disassembly diagram of a sealing device for rice packaging proposed in this utility model;

[0031] Figure 3 This is a three-dimensional structural diagram of the hot pressing mechanism of a sealing device for rice packaging proposed in this utility model;

[0032] Figure 4 This is a three-dimensional structural disassembly diagram of the hot pressing mechanism of a sealing device for rice packaging proposed in this utility model.

[0033] Figure 5 This is a three-dimensional structural breakdown diagram of the material dispensing mechanism of a sealing device for rice packaging proposed in this utility model.

[0034] In the diagram, 1. Conveyor table; 2. Push cylinder; 3. Roller frame; 4. Hot press base; 5. Guide clamp; 6. Hot press plate; 7. Guide column; 8. Graphene heating plate; 9. Linkage column; 10. Rotating wheel; 11. Linkage gear; 12. Servo motor; 13. Drive gear; 14. Material distribution base; 15. Rotating shaft; 16. Stop wheel; 17. Material distribution stop bar; 18. Rubber sleeve; 19. Ratchet; 20. Limit block; 21. Traction rope; 22. Flip metal strip; 23. Connecting column; 24. Spring; 25. Roller; 26. Conveyor belt. Detailed Implementation

[0035] Reference Figure 1-5 A sealing device for rice packaging includes a conveyor table 1, with a conveyor belt 26 on the inner side of the conveyor table 1 for placing rice packaging bags. Two roller frames 3 are slidably mounted on the top of the conveyor table 1, and the same hot-pressing base 4 is fixedly mounted on the side of the two roller frames 3 that are close to each other. The hot-pressing base 4 is slidably mounted on the top of the conveyor table 1, and a hot-pressing mechanism is provided on the inner side of the hot-pressing base 4. The hot-pressing mechanism includes two graphene heating plates 8. A material distribution base 14 is fixedly mounted on the top of the conveyor table 1, and a material distribution mechanism is provided on the material distribution base 14. A stop wheel 16 is rotatably mounted on the top of the material distribution base 14.

[0036] In this embodiment, two push cylinders 2 are fixedly installed on the top of the conveyor 1. The piston ends of the two push cylinders 2 are respectively fixedly connected to the corresponding roller frame 3, and the corresponding roller frame 3 can be moved by the two push cylinders 2.

[0037] In this embodiment, multiple evenly distributed rollers 25 are rotatably installed on the inner sides of both roller frames 3, which facilitates applying pressure to the opening of the rice packaging bag to prevent rice leakage during transportation.

[0038] In this embodiment, a guide clamp 5 is fixedly installed on one side of the right roller frame 3 among the two roller frames 3, so that the rice packaging bag can enter the roller frame 3 and the roller 25 therein can squeeze and seal the opening of the rice packaging bag.

[0039] In this embodiment, the hot pressing mechanism also includes two hot pressing plates 6, two guide columns 7, and two linkage columns 9. Two guide columns 7 are fixedly installed on the inner side of the hot pressing base 4, and two hot pressing plates 6 are slidably sleeved on each of the two guide columns 7. A driving chamber is opened inside the hot pressing base 4. Two limiting holes are opened on one side of the inner wall of the hot pressing base, and linkage columns 9 are slidably installed on the inner side of each of the two limiting holes. The two linkage columns 9 are fixedly connected to the corresponding hot pressing plates 6 respectively. Two graphene electric heating plates 8 are fixedly installed on one side of the corresponding hot pressing plates 6 respectively, so as to facilitate the movement of the graphene electric heating plates 8 by the hot pressing plates 6, thereby hot-pressing and sealing the rice packaging bag.

[0040] In this embodiment, a rotating wheel 10 is rotatably installed on one side of the inner wall of the driving chamber. Two linkage holes are opened on one side of the rotating wheel 10. Two linkage pins 9 are slidably installed on the inner side of the corresponding linkage holes, and the two linkage pins 9 can be moved through the linkage holes.

[0041] In this embodiment, a servo motor 12 is fixedly installed on the bottom inner wall of the drive chamber, a linkage gear 11 is fixedly sleeved on the outer side of the rotating wheel 10, and a drive gear 13 is rotatably installed on one side inner wall of the drive chamber. The drive gear 13 meshes with the linkage gear 11. The output shaft of the servo motor 12 is fixedly connected to the drive gear 13. The rotation of the drive gear 13 can drive the linkage gear 11 to rotate, thereby driving the rotating wheel 10 to rotate.

[0042] In this embodiment, the material distribution mechanism includes a rotating shaft 15, a ratchet 19, a limiting block 20, a traction rope 21, a flipping metal strip 22, and a connecting post 23. The rotating shaft 15 is rotatably passed through the top of the material distribution base 14. A stop wheel 16 is fixedly installed at the top of the rotating shaft 15. The ratchet 19 is fixedly installed at the bottom of the rotating shaft 15. A sliding groove is provided at the bottom of the material distribution base 14. The limiting block 20 slides inside the sliding groove. The limiting block 20 is adapted to the ratchet 19. The traction rope 21 is fixedly installed on one side of the limiting block 20. A columnar protrusion is provided at the top of the material distribution base 14. The flipping metal strip 22 is rotatably sleeved on the columnar protrusion. The connecting post 23 is fixedly installed on the outside of the flipping metal strip 22. The other end of the traction rope 21 is fixedly connected to the connecting post 23, so that the limiting block 20 can be moved by the traction rope 21.

[0043] In this embodiment, a groove is provided on one side of the inner wall of the sliding groove, and a spring 24 is fixedly installed on one side of the inner wall of the groove. The other end of the spring 24 is fixedly connected to the limiting block 20, and the limiting block 20 can be reset by the spring 24.

[0044] In this embodiment, four material distribution rods 17 are fixedly installed on the outer side of the rod wheel 16, and rubber sleeves 18 are fixedly fitted on each of the four material distribution rods 17 to prevent the material distribution rods 17 from damaging the rice packaging bag.

[0045] Working principle: When heat-sealing rice packaging bags, the worker places the rice packaging bag on the conveyor belt 26 located inside the conveyor table 1, and then starts the equipment. The opening of the rice packaging bag enters the roller frame 3 through the guide clamp 5. Multiple rollers 25 located in the roller frame 3 squeeze the opening of the rice packaging bag to prevent rice leakage. The conveyor belt 26 moves the rice packaging bag. The first rice packaging bag moves after passing the stop wheel 16. Subsequent rice packaging bags are blocked by the four material distribution stops 17 outside the stop wheel 16, ensuring that only one rice packaging bag undergoes the heat-sealing process at a time. After the position is moved between the two hot press plates 6, the servo motor 12 starts and drives the drive gear 13 to rotate. The drive gear 13 rotates and drives the linkage gear 11 to rotate. The linkage gear 11 rotates and drives the rotating wheel 10 to rotate, which in turn drives the two linkage holes on it to rotate around the center of the rotating wheel 10. The movement of the two linkage holes drives the corresponding linkage column 9 to move. Since the two linkage columns 9 are slidably installed in the corresponding limiting holes on one side of the hot press base 4, the two linkage columns 9 can only move up and down. The movement of the two linkage columns 9 and their proximity drive the corresponding hot press plates 6 to move closer together, thereby driving the two graphene heating plates 8 (the two graphene heating plates 8) to move closer together. Both systems have adjustable temperatures to accommodate rice packaging bags of different materials and thicknesses. By adjusting the temperature, the bag openings are melt-bonded, bringing the sealed portions closer together for heat-sealing. During heat-sealing, the two graphene heating plates 8 clamp the bag opening, preventing the conveyor belt 26 from moving the bag. After heat-sealing, the two graphene heating plates 8 move away from the bag, and the conveyor belt 26 moves the bag, bringing it into contact with the rotating metal strip 22. Simultaneously, the thrust of the conveyor belt 26 and the inertia of the bag cause the rotating metal strip 22 to move around the material distribution base. The columnar protrusion at the top of seat 14 rotates around the center, causing the rotating metal strip 22 to rotate and drive the connecting column 23 to move slightly. The movement of the connecting column 23 drives the limiting block 20 to move via the traction rope 21. At this time, the limiting protrusion on one side of the limiting block 20 disengages from the ratchet groove of the ratchet wheel 19. The conveyor belt 26 drives the second rice packaging bag to move, pushing the material distribution bar 17 and the bar wheel 16 to rotate. The spring 24 drives the limiting block 20 to reset and limits the ratchet wheel 19. Thus, the bar wheel 16 blocks the third rice packaging bag and subsequent rice packaging bags, thereby completing the material distribution. At this time, the second rice packaging bag moves with the conveyor belt 26 and is heat-sealed.

[0046] The technological advancements of this invention compared to existing technologies are as follows: By driving two hot-pressing plates 6 closer together, two graphene heating plates 8 are brought closer together to heat-press the rice packaging bags, thereby completing the sealing. The rice packaging bags are transported by conveyor belt 26 and squeezed at the bag opening by roller 25 for heat pressing. This solves the problem that existing equipment cannot perform continuous heat-press sealing. Furthermore, the rice packaging bags can be divided into smaller portions, allowing for time intervals during transport. This prevents multiple rice packaging bags from moving to the heat-press sealing area simultaneously, which could lead to insufficient heat-press sealing, thus increasing the practicality and stability of the equipment.

[0047] The sealing device for rice packaging provided in this application has been described in detail above. Specific embodiments have been used to illustrate the principles and implementation methods of this application. The descriptions of the embodiments above are only for the purpose of helping to understand the method and core ideas of this application. It should be noted that those skilled in the art can make several improvements and modifications to this application without departing from the principles of this application, and these improvements and modifications also fall within the protection scope of the claims of this application.

Claims

1. A sealing device for rice packaging, characterized in that, Includes a conveyor platform (1), the inner side of which is provided with a conveyor belt (26) for placing rice packaging bags, and two roller frames (3) are slidably installed on the top of the conveyor platform (1). The same hot pressing base (4) is fixedly installed on the side of the two roller frames (3) that are close to each other. The hot pressing base (4) is slidably installed on the top of the conveyor platform (1). The inner side of the hot pressing base (4) is provided with a hot pressing mechanism, which includes two graphene electric heating plates (8). A material distribution base (14) is fixedly installed on the top of the conveyor (1), and a material distribution mechanism is provided on the material distribution base (14). A stop wheel (16) is rotatably installed on the top of the material distribution base (14).

2. A sealing device for rice packaging according to claim 1, characterized in that: Two push cylinders (2) are fixedly installed on the top of the conveyor (1), and the piston ends of the two push cylinders (2) are fixedly connected to the corresponding roller frame (3).

3. A sealing device for rice packaging according to claim 2, characterized in that: Multiple rollers (25) are rotatably mounted on the inner side of both roller frames (3).

4. A sealing device for rice packaging according to claim 3, characterized in that: A guide clamp (5) is fixedly installed on one side of the right roller frame (3) among the two roller frames (3).

5. A sealing device for rice packaging according to claim 1, characterized in that: The hot pressing mechanism also includes two hot pressing plates (6), two guide columns (7) and two linkage columns (9). Two guide columns (7) are fixedly installed on the inner side of the hot pressing base (4). Two hot pressing plates (6) are slidably sleeved on the two guide columns (7). A driving chamber is opened inside the hot pressing base (4). Two limiting holes are opened on one side of the inner wall of the hot pressing base. Linkage columns (9) are slidably installed on the inner side of the two limiting holes. The two linkage columns (9) are fixedly connected to the corresponding hot pressing plates (6). Two graphene electric heating plates (8) are fixedly installed on one side of the corresponding hot pressing plates (6).

6. A sealing device for rice packaging according to claim 5, characterized in that: A rotating wheel (10) is rotatably installed on one side of the inner wall of the drive chamber. Two linkage holes are opened on one side of the rotating wheel (10), and two linkage columns (9) are slidably installed on the inner side of the corresponding linkage holes.

7. A sealing device for rice packaging according to claim 6, characterized in that: A servo motor (12) is fixedly installed on the bottom inner wall of the drive chamber. A linkage gear (11) is fixedly sleeved on the outer side of the rotating wheel (10). A drive gear (13) is rotatably installed on one side inner wall of the drive chamber. The drive gear (13) meshes with the linkage gear (11). The output shaft of the servo motor (12) is fixedly connected to the drive gear (13).

8. A sealing device for rice packaging according to claim 1, characterized in that: The material distribution mechanism includes a rotating shaft (15), a ratchet (19), a limiting block (20), a traction rope (21), a flipping metal strip (22), and a connecting column (23). The rotating shaft (15) is rotatably passed through the top of the material distribution base (14). The stop wheel (16) is fixedly installed on the top of the rotating shaft (15). The ratchet (19) is fixedly installed on the bottom of the rotating shaft (15). A sliding groove is provided at the bottom of the material distribution base (14). The inner side of the limiting block (20) is slidably fitted with the ratchet (19). A traction rope (21) is fixedly installed on one side of the limiting block (20). The top of the material distribution base (14) is provided with a columnar protrusion. A flip metal strip (22) is rotatably fitted on the columnar protrusion. A connecting column (23) is fixedly installed on the outer side of the flip metal strip (22). The other end of the traction rope (21) is fixedly connected to the connecting column (23).

9. A sealing device for rice packaging according to claim 8, characterized in that: A groove is provided on one side of the inner wall of the sliding groove, and a spring (24) is fixedly installed on one side of the inner wall of the groove. The other end of the spring (24) is fixedly connected to the limiting block (20).

10. A sealing device for rice packaging according to claim 9, characterized in that: Four material distribution rods (17) are fixedly installed on the outer side of the rod wheel (16), and rubber sleeves (18) are fixedly fitted on the four material distribution rods (17).

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