A sealing device for packaging bag processing

Abstract

The utility model relates to a sealing device for packaging bag processing, aims at solving the current sealing device for packaging bag processing easy to appear packaging bag sealing misplacement, leak sealing, deviation, slip or wrinkle, not only reduces sealing quality, but also will increase the rejection rate, influences the technical problem of production efficiency, including concave type feeding frame, the inside of concave type feeding frame evenly has two groups of feeding roller, and the axle end rotation connection in the inner wall of two groups feeding roller is fixedly connected with one end of two groups transmission gear and extends to the other side of concave type feeding frame, and the outside of two groups transmission gear is engaged with transmission chain, and the other end of a transmission gear is fixedly connected in one end of first gear, and the other end of first gear is fixedly connected in the output end of conveying motor, the utility model can let the feeding speed and sealing speed accurate matching, avoid the difference in speed and lead to packaging bag tensile deformation or sealing misplacement, guarantee packaging bag sealing process coherent high efficiency.

Description

Technical Field

[0001] This utility model relates to the field of sealing devices, specifically a sealing device for processing packaging bags. Background Technology

[0002] Food packaging is an integral part of food products and one of the major engineering processes in the food industry. It protects food from damage caused by biological, chemical, and physical external factors during its distribution from the factory to the consumer. It also helps maintain the stable quality of the food itself. It facilitates the consumption of food and is the first thing that represents the appearance of the food, attracting consumers. It has value beyond material cost. Therefore, the food packaging process is an integral part of the food manufacturing system engineering.

[0003] According to publicly available patent 202120921893.9, a sealing device for food packaging bag processing belongs to the food processing field. Its key technical features include a base plate and a transmission mechanism. A column is fixedly connected to the top of the base plate, a support plate is fixedly connected to one side of the column, a cylinder is fixedly connected to the top of the support plate, and a first heat-sealing mold is fixedly connected to the piston rod of the cylinder via a fixed block. A support column is fixedly connected to the top of the base plate, and a second heat-sealing mold is fixedly connected to one side of the support column via a support plate. The transmission mechanism includes a motor, a transmission roller, a conveyor belt, and a driven roller. The output end of the motor is fixedly connected to the transmission roller, the outer side of the transmission roller is rotatably connected to the conveyor belt, the inner ring of the conveyor belt is rotatably connected to the driven roller, and a rubber sleeve is fixedly connected to the outer side of the conveyor belt. In the process of realizing this utility model, the inventors discovered that at least the following problems in the prior art remain unsolved. The solution involves placing the food packaging bag on top of a conveyor belt. A cylinder switch on the top of the base plate controls the movement of a first heat-sealing mold. This movement, in conjunction with a second heat-sealing mold, seals the food packaging bag on top of the conveyor belt. After sealing, a motor switch on the top of the base plate controls the movement of the conveyor belt, removing the sealed bag. This solves the problems of inconvenience, time-consuming, and labor-intensive food packaging bag sealing devices. Traditional sealing devices for packaging bag processing often use independent power drives for the feeding and sealing systems, lacking an effective linkage mechanism. This easily leads to a mismatch between feeding and sealing speeds. When the feeding speed is too high, the packaging bag is easily stretched and deformed; when the sealing speed is too high, problems such as misalignment, incomplete sealing, offset, slippage, or wrinkling occur, reducing sealing quality, increasing scrap rates, and affecting production efficiency. Therefore, a new technical solution is needed to address these issues. Utility Model Content

[0004] The purpose of this utility model is to overcome the shortcomings of the existing technology, adapt to the needs of reality, and provide a sealing device for packaging bag processing. This device solves the technical problems that current sealing devices for packaging bag processing are prone to misalignment, incomplete sealing, displacement, slippage, or wrinkling of the packaging bags, which not only reduce sealing quality but also increase scrap rate and affect production efficiency.

[0005] To achieve the purpose of this utility model, the technical solution adopted by this utility model is as follows: a sealing device for packaging bag processing is designed, including a concave feeding frame. Two sets of feeding rollers are evenly distributed inside the concave feeding frame. The shaft ends of the two sets of feeding rollers are rotatably connected to the inner wall and extend to the other side of the concave feeding frame and are fixedly connected to one end of two sets of transmission gears. Transmission chains are meshed on the outside of the two sets of transmission gears. The other end of one transmission gear is fixedly connected to one end of a first gear. The other end of the first gear is fixedly connected to the output end of the feeding motor.

[0006] The toothed end of the first gear is connected to the second gear via a first chain. One end of the second gear is fixedly connected to one side of the first driving gear, and the other side of the first driving gear is fixedly connected to one end of the first drive shaft. The other end of the first drive shaft is fixedly connected to one side of the first sealing roller. The toothed end of the first driving gear meshes with the toothed end of the first driven gear. One side of the first driven gear is fixedly connected to one end of the second drive shaft, and the other end of the second drive shaft is fixedly connected to one side of the second sealing roller.

[0007] Preferably, a second driving gear is fixedly connected to the other end of the lower transmission gear at the edge of the concave feeding frame, and a second driven gear is fixedly connected to the other end of the upper transmission gear at the edge of the concave feeding frame, with the toothed end of the second driving gear meshing with the toothed end of the second driven gear.

[0008] Preferably, the first drive shaft and the second drive shaft are rotatably connected inside the concave feeding frame, and one side of the first sealing roller and the second sealing roller are in contact with the opening surface of the concave feeding frame.

[0009] Preferably, the distance between the bottom surface of the first sealing roller and the top surface of the second sealing roller is the same as the distance between the upper and lower feeding rollers, and the first sealing roller is located below the second sealing roller.

[0010] Preferably, one end of the first chain is fitted onto the toothed end of the first gear, and the other end of the first chain is fitted onto the toothed end of the second gear.

[0011] Preferably, two trays are symmetrically installed on one side of the concave feeding frame, and guide plates are installed at adjacent ends of the two trays.

[0012] Preferably, one side of each of the two pallets is fixedly connected to one side of the concave feeding frame, and one end of each of the two guide plates is fixedly connected to one end of each of the two pallets. The bottom surface of the guide plates is arc-shaped and covers both sides of the first sealing roller.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] When the packaging bag is sealed, the feeding motor drives the first gear to rotate, which in turn drives the transmission gear fixed to it to rotate. Through chain transmission, the two sets of feeding rollers rotate synchronously to complete the stable conveying of the packaging bag. On the other hand, the first gear drives the second gear to rotate through the first chain, and then transmits power to the first drive gear, the first drive shaft and the second drive shaft in sequence, driving the first sealing roller and the second sealing roller to rotate synchronously. This allows the feeding speed and sealing speed to be precisely matched, avoiding the stretching and deformation of the packaging bag or the misalignment of the seal due to speed differences, and ensuring a smooth and efficient packaging bag sealing process.

[0015] Through the meshing transmission of the first driving gear and the first driven gear, the first sealing roller and the second sealing roller rotate synchronously in opposite directions, which can form a uniform clamping and sealing force on the edge of the conveyed packaging bag, ensuring consistent sealing pressure and avoiding problems such as localized insecure sealing and leakage.

[0016] By fixing the lower transmission gear at the edge of the concave feeding frame to the second driving gear and the upper transmission gear to the second driven gear, and by meshing the second driving gear with the second driven gear, the synchronous reverse rotation of the upper and lower sets of feeding rollers is achieved, ensuring that the clamping force of the upper and lower feeding rollers on the packaging bag is balanced, and avoiding the packaging bag from shifting, slipping or wrinkling during the conveying process. Attached Figure Description

[0017] Figure 1 This is a schematic diagram on the right side of the present invention;

[0018] Figure 2 This is a schematic diagram of the left side of this utility model;

[0019] Figure 3 This is a schematic diagram of the material conveying motor connection of this utility model;

[0020] Figure 4 This is a schematic diagram of the combination of the first sealing roller and the second sealing roller of this utility model.

[0021] In the diagram: 1. Concave feeding frame; 11. Feeding roller; 12. Transmission gear; 13. Transmission chain; 14. First gear; 15. Feeding motor; 16. First chain; 17. Second gear; 18. First drive gear; 19. First drive shaft;

[0022] 2. First sealing roller; 21. First driven gear; 22. Second drive shaft; 23. Second sealing roller; 24. Support plate; 25. Guide plate; 26. Second drive gear; 27. Second driven gear. Detailed Implementation

[0023] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0024] Example 1: A sealing device for packaging bag processing, see [link to example]. Figures 1 to 4 The concave feeding frame 1 includes two sets of feeding rollers 11 evenly distributed inside the concave feeding frame 1. The shaft ends of the two sets of feeding rollers 11 are rotatably connected to the inner wall and extend to the other side of the concave feeding frame 1 and are fixedly connected to one end of two sets of transmission gears 12. Both sets of transmission gears 12 are meshed with chains on their outer sides. The other end of one transmission gear 12 is fixedly connected to one end of a first gear 14. The other end of the first gear 14 is fixedly connected to the output end of the feeding motor 15.

[0025] The feeding motor 15 drives the first gear 14 to rotate, which in turn drives the transmission gear 12 fixed to it to rotate. Through chain transmission, the two sets of feeding rollers 11 rotate synchronously to complete the stable conveying of the packaging bag. On the other hand, the first gear 14 drives the second gear 17 to rotate through the first chain 16, and then transmits power to the first drive gear 18, the first drive shaft 19 and the second drive shaft 22 in sequence, driving the first sealing roller 2 and the second sealing roller 23 to rotate synchronously. This allows the feeding speed and sealing speed to be precisely matched, avoiding the stretching and deformation of the packaging bag or the misalignment of the seal due to speed differences, and ensuring a smooth and efficient packaging bag sealing process.

[0026] The toothed end of the first gear 14 is connected to the second gear 17 via the first chain 16. One end of the first chain 16 is fitted onto the toothed end of the first gear 14, and the other end of the first chain 16 is fitted onto the toothed end of the second gear 17. One end of the second gear 17 is fixedly connected to one side of the first driving gear 18, and the other side of the first driving gear 18 is fixedly connected to one end of the first drive shaft 19. The other end of the first drive shaft 19 is fixedly connected to one side of the first sealing roller 2. The toothed end of the first driving gear 18 meshes with the toothed end of the first driven gear 21. One side of the first driven gear 21 is fixedly connected to one end of the second drive shaft 22, and the other end of the second drive shaft 22 is fixedly connected to one side of the second sealing roller 23.

[0027] The first driving gear 18 meshes with the first driven gear 21, causing the first sealing roller 2 and the second sealing roller 23 to rotate synchronously in opposite directions. This creates a uniform clamping and sealing force on the edge of the conveyed packaging bag, ensuring consistent sealing pressure and preventing problems such as insecure sealing or leaks.

[0028] For details, see Figure 1 and Figure 2 The other end of the lower transmission gear 12 at the edge of the concave feeding frame 1 is fixedly connected to the second drive gear 26, and the other end of the upper transmission gear 12 at the edge of the concave feeding frame 1 is fixedly connected to the second driven gear 27. The toothed end of the second drive gear 26 meshes with the toothed end of the second driven gear 27.

[0029] By fixing the lower transmission gear 12 at the edge of the concave feeding frame 1 to the second driving gear 26 and the upper transmission gear 12 to the second driven gear 27, and making the second driving gear 26 mesh with the second driven gear 27, the synchronous reverse rotation of the upper and lower sets of feeding rollers 11 is achieved, ensuring that the clamping force of the upper and lower feeding rollers 11 on the packaging bag is balanced, and avoiding the packaging bag from shifting, slipping or wrinkling during the conveying process.

[0030] Further, see Figure 1 and Figure 2 The first drive shaft 19 and the second drive shaft 22 are rotatably connected inside the concave feeding frame 1, and one side of the first sealing roller 2 and the second sealing roller 23 are in contact with the opening surface of the concave feeding frame 1.

[0031] The first drive shaft 19 and the second drive shaft 22 are rotatably connected inside the concave feeding frame 1, providing stable rotational support for the first sealing roller 2 and the second sealing roller 23, preventing the sealing rollers from shaking or shifting during operation. At the same time, one side of the first sealing roller 2 and the second sealing roller 23 is in contact with the opening surface of the concave feeding frame 1, which can limit the edge of the packaging bag, prevent the packaging bag from shifting to the side when sealing, and reduce sealing deviation.

[0032] Further, see Figure 1 The distance between the bottom surface of the first sealing roller 2 and the top surface of the second sealing roller 23 is the same as the distance between the upper and lower conveying rollers, and the first sealing roller 2 is located below the second sealing roller 23.

[0033] The distance between the bottom surface of the first sealing roller 2 and the top surface of the second sealing roller 23 is consistent with the distance between the upper and lower feeding rollers. This ensures that the packaging bag can be smoothly transferred from the feeding roller 11 to the sealing roller, avoiding jamming, wrinkling or displacement of the packaging bag due to sudden changes in distance. At the same time, the layout of the first sealing roller 2 located below the second sealing roller 23 makes the sealing force direction match the feeding direction.

[0034] It is worth noting that, see Figure 1Two pallets 24 are symmetrically installed on one side of the concave feeding frame 1. Guide plates 25 are installed on the adjacent ends of the two pallets 24. One side of the two pallets 24 is fixedly connected to one side of the concave feeding frame 1. One end of the two guide plates 25 is fixedly connected to one end of the two pallets 24 respectively. The bottom surface of the guide plate 25 is arc-shaped and covers both sides of the first sealing roller 2.

[0035] The two trays 24 and the guide plates 25 at their adjacent ends can guide the packaging bags entering the sealing rollers, ensuring that the edges of the packaging bags accurately enter between the first sealing roller 2 and the second sealing roller 23, and avoiding misalignment of the seals; the bottom surface of the guide plate 25 is arc-shaped and covers both sides of the first sealing roller 2, which can block the sealing area during the sealing process and prevent the parts of the packaging bag that do not need to be sealed from being burned.

[0036] When the packaging bag is sealed, one end of the first gear 14 is fixedly connected to a set of transmission gears 12. The transmission gears 12 drive the shaft end transmission gears 12 of the two sets of feeding rollers 11 in the concave feeding frame 1 to rotate synchronously through the externally meshing chain, so as to provide conveying power for the feeding rollers 11.

[0037] The toothed end of the first gear 14 drives the second gear 17 to rotate via the first chain 16. One end of the second gear 17 is fixedly connected to the first driving gear 18, thereby driving the first driving gear 18 to rotate synchronously. The first driving gear 18 meshes with the first driven gear 21, transmitting power to the first driven gear 21, so that the first driving gear 18 and the first driven gear 21 rotate synchronously in opposite directions. Finally, the first sealing roller 2 and the second sealing roller 23 are driven to operate via the first drive shaft 19 and the second drive shaft 22, respectively.

[0038] At the edge of the concave feeding frame 1, the second driving gear 26, which is fixed at the other end of the lower transmission gear 12, meshes with the second driven gear 27, which is fixed at the other end of the upper transmission gear 12. When the transmission gear 12 rotates, the second driving gear 26 drives the second driven gear 27 to rotate synchronously in the opposite direction, thereby enabling the upper and lower sets of feeding rollers 11 to rotate synchronously in the opposite direction, forming a clamping and conveying force on the packaging bag.

[0039] The upper and lower feeding rollers 11 rotate synchronously in opposite directions to smoothly convey the packaging bag to be sealed from the inlet end of the concave feeding frame 1 to the sealing roller.

[0040] The first driving gear 18 and the first driven gear 21 rotate synchronously in opposite directions, driving the first sealing roller 2 (below) and the second sealing roller 23 (above) to rotate synchronously in opposite directions, thereby sealing the packaging bag while conveying it.

[0041] In addition, all components designed in this utility model are general standard parts or components known to those skilled in the art. Their structure and principle can be learned by those skilled in the art through technical manuals or conventional experimental methods. Those skilled in the art can fully implement them, so there is no need to elaborate. The content protected by this utility model does not involve improvements to the internal structure and method.

[0042] The embodiments disclosed herein are preferred embodiments, but are not limited thereto. Those skilled in the art can readily grasp the spirit of this utility model based on the above embodiments and make different extensions and variations. However, as long as they do not depart from the spirit of this utility model, they are all within the protection scope of this utility model.

Claims

1. A sealing device for processing packaging bags, comprising a concave feeding frame (1), characterized in that, The concave feeding frame (1) has two sets of feeding rollers (11) evenly distributed inside. The shaft ends of the two sets of feeding rollers (11) are rotatably connected to the inner wall and extend to the other side of the concave feeding frame (1) and are fixedly connected to one end of the two sets of transmission gears (12). The two sets of transmission gears (12) are meshed with transmission chains (13) on the outside. The other end of one transmission gear (12) is fixedly connected to one end of the first gear (14). The other end of the first gear (14) is fixedly connected to the output end of the feeding motor (15). The toothed end of the first gear (14) is connected to the second gear (17) via the first chain (16). One end of the second gear (17) is fixedly connected to one side of the first driving gear (18). The other side of the first driving gear (18) is fixedly connected to one end of the first drive shaft (19). The other end of the first drive shaft (19) is fixedly connected to one side of the first sealing roller (2). The toothed end of the first driving gear (18) meshes with the toothed end of the first driven gear (21). One side of the first driven gear (21) is fixedly connected to one end of the second drive shaft (22). The other end of the second drive shaft (22) is fixedly connected to one side of the second sealing roller (23).

2. The sealing device for packaging bag processing as described in claim 1, characterized in that, The lower transmission gear (12) at the edge of the concave feeding frame (1) is fixedly connected to the other end of a second driving gear (26), and the upper transmission gear (12) at the edge of the concave feeding frame (1) is fixedly connected to the other end of a second driven gear (27). The toothed end of the second driving gear (26) meshes with the toothed end of the second driven gear (27).

3. The sealing device for processing a packaging bag according to claim 1, wherein The first drive shaft (19) and the second drive shaft (22) are rotatably connected inside the concave feeding frame (1), and one side of the first sealing roller (2) and the second sealing roller (23) are in contact with the opening surface of the concave feeding frame (1).

4. The sealing device for processing packaging bags as described in claim 1, characterized in that, The distance between the bottom surface of the first sealing roller (2) and the top surface of the second sealing roller (23) is the same as the distance between the upper and lower feeding rollers (11), and the first sealing roller (2) is located below the second sealing roller (23).

5. The sealing device for processing a packaging bag according to claim 1, wherein One end of the first chain (16) is fitted onto the toothed end of the first gear (14), and the other end of the first chain (16) is fitted onto the toothed end of the second gear (17).

6. The sealing device for processing a packaging bag according to claim 1, wherein Two trays (24) are symmetrically installed on one side of the concave feeding frame (1), and guide plates (25) are installed at the adjacent ends of the two trays (24).

7. A sealing device for processing packaging bags as described in claim 6, characterized in that, One side of the two pallets (24) is fixedly connected to one side of the concave feeding frame (1), and one end of the two guide plates (25) is fixedly connected to one end of the two pallets (24). The bottom surface of the guide plates (25) is arc-shaped and covers both sides of the first sealing roller (2).

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