A sealing and cutting mechanism of a high-speed packaging machine
By designing a sealing and cutting mechanism that includes a protective shell, a rotating shaft, transmission gears, and a motor, the efficiency problem of high-speed packaging machines when switching sealing and cutting gaps is solved, enabling rapid adjustment and replacement of the sealing and cutting mechanism and improving work efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUANGDONG DINGBAO MACHINERY TECHNOLOGY CO LTD
- Filing Date
- 2025-08-06
- Publication Date
- 2026-06-16
AI Technical Summary
High-speed packaging machines require stopping for fine-tuning or replacing the blade when switching sealing and cutting gaps, which affects work efficiency.
A sealing and cutting mechanism was designed, comprising a protective shell, a rotating shaft, a transmission gear, a motor, a fixed plate, a lifting mechanism, and a rotating mechanism. The transmission gear and motor work together to enable rapid adjustment and replacement of the sealing and cutting mechanism, and the lifting groove and rotating rod work together to enable precise adjustment of the sealing and cutting distance and sealing and cutting operations.
It enables rapid adjustment and replacement of the sealing and cutting mechanism, improving work efficiency, reducing downtime, and increasing packaging efficiency.
Smart Images

Figure CN224361507U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of sealing and cutting in packaging machines, specifically to a sealing and cutting mechanism for a high-speed packaging machine. Background Technology
[0002] The sealing and cutting mechanism of a high-speed packaging machine is a key component integrating sealing and cutting functions. It uses heat sealing or cold cutting technology to seal continuous packaging materials (such as plastic films, paper bags, etc.) into individual packaging bags and precisely cuts them into the required shapes. High-speed packaging machines require stopping for fine-tuning when changing the sealing and cutting spacing, affecting packaging efficiency. Furthermore, when the sealing and cutting spacing exceeds the adjustment distance, the sealing and cutting blade needs to be replaced, resulting in even longer downtime and significantly impacting work efficiency. Therefore, those skilled in the art have provided a sealing and cutting mechanism for a high-speed packaging machine to solve the problems mentioned in the background section. Utility Model Content
[0003] To solve the above-mentioned technical problems, this utility model provides a sealing and cutting mechanism for a high-speed packaging machine, including a protective shell. The bottom of the protective shell is rotatably connected to a rotating shaft. A transmission gear one is installed on the outer surface of the rotating shaft. Transmission gear one and transmission gear two mesh with each other. A motor one is installed at the lower end of transmission gear two. Several fixed plates are symmetrically installed on the side of the rotating shaft. A rotating mechanism is set inside the fixed plate. A lifting mechanism is installed on the side of the fixed plate. Two rotating mechanisms are rotatably connected inside the lifting mechanism. A sealing and cutting mechanism is installed on the outer surface of the rotating mechanism.
[0004] Preferably, the rotating mechanism includes a rotating rod and a second motor. The rotating rod is rotatably connected inside the fixed plate, and the second motor is installed at the lower end of the rotating rod. The outer surface of the rotating rod has symmetrical lifting grooves.
[0005] Preferably, the lifting mechanism includes a grooved rod and a hollow rod. The hollow rod is fixed to the side of the fixed plate. Grooved rods are symmetrically installed on the upper end of the hollow rod. A threaded rod is rotatably connected inside the grooved rod. The upper and lower threads on the outer surface of the threaded rod are in opposite directions. The lower end of the threaded rod passes through the upper end of the hollow rod and is fitted with a bevel gear. Threaded sleeves are symmetrically fitted on the outer surface of the threaded rod. Lifting blocks are symmetrically arranged inside the two grooved rods, and the lifting blocks are fixedly connected to the threaded sleeves.
[0006] Preferably, a dual-axis motor is installed inside the hollow rod, and bevel gears are installed at both ends of the dual-axis motor, with bevel gears meshing with bevel gears.
[0007] Preferably, the rotating mechanism includes a rotating rod and a rotating cylinder. The rotating rod is rotatably connected inside the lifting block. A stop block is installed on the outer surface of the rotating rod. Guide rods are symmetrically installed on the outer surface of the rotating rod. A threaded connector is installed at the left end of the rotating rod. A nut is sleeved on the outer surface of the threaded connector. A bevel gear is installed at the right end of the rotating rod.
[0008] Preferably: an L-shaped block is installed on the side of the lifting block, a bearing is installed on the side of the L-shaped block, a rotating cylinder is rotatably connected inside the bearing, a bevel gear four is installed on the outer surface of the rotating cylinder, and the bevel gear four meshes with the bevel gear three, a limiting block is symmetrically installed on the inner wall of the rotating cylinder, and the limiting block is located in the lifting groove, and the bevel gear four of the two rotating mechanisms are in opposite directions.
[0009] Preferably, the sealing and cutting mechanism includes a rotating column and a cutting blade. A through hole is opened in the middle of the rotating column, and guide grooves are symmetrically opened in the inner wall of the through hole. Several sealing and cutting groups are installed on the outer surface of the rotating column. Each sealing and cutting group includes a cutting blade and two heat sealing rods. Electric heating wires are installed inside the heat sealing rods, and a power source is provided inside the rotating column.
[0010] The technical effects and advantages of this utility model are as follows:
[0011] This invention can quickly rotate the sealing and cutting mechanism corresponding to the required sealing and cutting distance out of the protective shell to perform sealing and cutting work on the packaging. It is convenient and quick to change the sealing and cutting mechanism according to the needs of use, thus improving work efficiency. Attached Figure Description
[0012] Figure 1 This is a schematic diagram of the structure of this application;
[0013] Figure 2 This is a schematic diagram of the structure of the rotating shaft in this application;
[0014] Figure 3 This is a schematic diagram of the rotating mechanism of this application;
[0015] Figure 4 This is a structural schematic diagram of the lifting mechanism of this application;
[0016] Figure 5 This is a schematic diagram of the rotating mechanism of this application;
[0017] Figure 6 This is a schematic diagram of the sealing and cutting mechanism of this application;
[0018] In the picture:
[0019] 1. Protective shell; 2. Rotating shaft; 3. Transmission gear one; 4. Transmission gear two; 5. Motor one; 6. Fixing plate; 7. Rotating mechanism; 8. Rotating rod; 9. Lifting groove;
[0020] 10. Motor II; 11. Lifting mechanism; 12. Grooved rod; 13. Hollow rod; 14. Threaded rod; 15. Bevel gear I; 16. Dual-shaft motor; 17. Bevel gear II; 18. Lifting block; 19. Rotating mechanism;
[0021] 20. Rotating rod; 21. Stop block; 22. Guide rod; 23. Threaded connector; 24. Nut; 25. Bevel gear three; 26. L-shaped block; 27. Rotating cylinder; 28. Bevel gear four; 29. Limiting block;
[0022] 30. Sealing and cutting mechanism; 31. Rotating column; 32. Through hole; 33. Guide groove; 34. Cutting blade; 35. Heat sealing rod. Detailed Implementation
[0023] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments. The embodiments of the present invention are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described to better illustrate the principles and practical applications of the present invention, and to enable those skilled in the art to understand the present invention and design various embodiments with various modifications suitable for a particular purpose.
[0024] like Figures 1-6As shown, this embodiment provides a sealing and cutting mechanism for a high-speed packaging machine, including a protective shell 1. A rotating shaft 2 is rotatably connected to the bottom of the protective shell 1. A transmission gear 3 is mounted on the outer surface of the rotating shaft 2, and the transmission gear 3 meshes with a transmission gear 4. A motor 5 is mounted at the lower end of the transmission gear 4. Several fixed plates 6 are symmetrically mounted on the side of the rotating shaft 2. A rotating mechanism 7 is provided inside the fixed plates 6. The rotating mechanism 7 includes a rotating rod 8 and a motor 10. The rotating rod 8 is rotatably connected inside the fixed plates 6, and the motor 10 is mounted at the lower end of the rotating rod 8. Lifting grooves 9 are symmetrically formed on the outer surface of the rotating rod 8. A lifting mechanism 11 is mounted on the side of the fixed plates 6. Mechanism 11 includes grooved rods 12 and hollow rods 13. Hollow rods 13 are fixed to the side of fixed plate 6. Grooved rods 12 are symmetrically installed on the upper end of hollow rods 13. Threaded rods 14 are rotatably connected inside grooved rods 12, and the upper and lower threads on the outer surface of threaded rods 14 are in opposite directions. The lower end of threaded rods 14 passes through the upper end of hollow rods 13 and is fitted with bevel gear 15. A dual-axis motor 16 is installed inside hollow rods 13. Bevel gears 17 are installed at both ends of the dual-axis motor 16, and bevel gears 17 mesh with bevel gear 15. Threaded sleeves are symmetrically fitted on the outer surface of threaded rods 14. Lifting blocks 18 are symmetrically arranged inside the two grooved rods 12, and the lifting blocks 18 are fixed. The lifting mechanism 11 is internally connected to two rotating mechanisms 19 via a threaded sleeve. Each rotating mechanism 19 includes a rotating rod 20 and a rotating cylinder 27. The rotating rod 20 is rotatably connected inside the lifting block 18. A stop block 21 is installed on the outer surface of the rotating rod 20, and guide rods 22 are symmetrically installed on its outer surface. A threaded connector 23 is installed at the left end of the rotating rod 20, and a nut 24 is fitted onto the outer surface of the threaded connector 23. A bevel gear 25 is installed at the right end of the rotating rod 20. An L-shaped block 26 is installed on the side of the lifting block 18, and a bearing is installed on the side of the L-shaped block 26. The bearing is internally rotatably connected to the rotating cylinder 27, and a bevel gear 28 is installed on the outer surface of the rotating cylinder 27. Furthermore, bevel gear 4 28 and bevel gear 3 25 mesh, and limit blocks 29 are symmetrically installed on the inner wall of the rotating cylinder 27, and the limit blocks 29 are located in the lifting groove 9. The bevel gear 4 28 of the two rotating mechanisms 19 are in opposite directions. A sealing and cutting mechanism 30 is installed on the outer surface of the rotating mechanism 19. The sealing and cutting mechanism 30 includes a rotating column 31 and a cutting blade 34. A through hole 32 is opened in the middle of the rotating column 31. Guide grooves 33 are symmetrically opened on the inner wall of the through hole 32. Several sealing and cutting groups are installed on the outer surface of the rotating column 31. The sealing and cutting group includes a cutting blade 34 and two heat sealing rods 35. An electric heating wire is installed inside the heat sealing rod 35. A power supply is set inside the rotating column 31.
[0025] The working principle of this utility model is as follows: the sealing and cutting mechanism 30 with different spacing sealing and cutting groups is installed on the side of multiple lifting mechanisms 11, the rotating column 31 is sleeved on the outside of the rotating rod 20, so that the rotating rod 20 is inserted into the through hole 32, and at the same time, the guide rod 22 is inserted into the guide groove 33, the rotating column 31 abuts against the stop block 21, the nut 24 is installed on the outer surface of the threaded connector 23 to abut against the rotating column 31, and the rotating column 31 is installed on the outer surface of the rotating rod 20;
[0026] Adjust the distance between the upper and lower sealing and cutting mechanisms 30. The dual-axis motor 16 drives the threaded rod 14 to rotate through the meshing of the second bevel gear 17 and the first bevel gear 15. The threaded rod 14 drives the lifting block 18 to move through the threaded sleeve, so that the two lifting blocks 18 move in opposite directions. The lifting blocks 18 drive the sealing and cutting mechanism 30 to move in opposite directions through the rotating mechanism 19 to adjust the distance.
[0027] Motor 15 drives the rotating shaft 2 to rotate intermittently through the meshing of transmission gear 24 and transmission gear 13. The rotating shaft 2 drives the sealing and cutting mechanism 30 to rotate out of the protective shell 1 through the fixed plate 6, lifting mechanism 11 and rotating mechanism 19, so that the sealing and cutting mechanism 30 with the required sealing and cutting spacing can be rotated to the working position. Motor 210 drives the rotating rod 8 to rotate. The rotating rod 8 drives the bevel gear 4 28 to rotate through the lifting groove 9, limit block 29 and rotating cylinder 27. The bevel gear 4 28 drives the rotating rod 20 and guide rod 22 to rotate through the bevel gear 3 25. The rotating rod 20 and guide rod 22 drive the sealing and cutting mechanism 30 to rotate. The upper and lower sealing and cutting mechanisms 30 work together to seal and cut the packaging.
[0028] Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art and related fields based on the embodiments of this utility model without creative effort should fall within the protection scope of this utility model. Structures, devices, and operating methods not specifically described and explained in this utility model, unless otherwise specified or limited, shall be implemented according to conventional means in the art.
Claims
1. A sealing and cutting mechanism for a high-speed packaging machine, comprising a protective shell (1), characterized in that, The bottom of the protective shell (1) is rotatably connected to the rotating shaft (2). A transmission gear (3) is installed on the outer surface of the rotating shaft (2). The transmission gear (3) and the transmission gear (4) mesh. A motor (5) is installed at the lower end of the transmission gear (4). Several fixed plates (6) are symmetrically installed on the side of the rotating shaft (2). A rotating mechanism (7) is set inside the fixed plate (6). A lifting mechanism (11) is installed on the side of the fixed plate (6). Two rotating mechanisms (19) are rotatably connected inside the lifting mechanism (11). A sealing and cutting mechanism (30) is installed on the outer surface of the rotating mechanism (19).
2. The sealing and cutting mechanism of a high-speed packaging machine according to claim 1, characterized in that, The rotating mechanism (7) includes a rotating rod (8) and a second motor (10). The rotating rod (8) is rotatably connected inside the fixed plate (6). The second motor (10) is installed at the lower end of the rotating rod (8). The outer surface of the rotating rod (8) is symmetrically provided with lifting grooves (9).
3. The sealing and cutting mechanism of a high-speed packaging machine according to claim 1, characterized in that, The lifting mechanism (11) includes a grooved rod (12) and a hollow rod (13). The hollow rod (13) is fixed to the side of the fixed plate (6). The grooved rod (12) is symmetrically installed on the upper end of the hollow rod (13). The grooved rod (12) is rotatably connected to a threaded rod (14) inside. The upper and lower threads on the outer surface of the threaded rod (14) are opposite in direction. The lower end of the threaded rod (14) passes through the upper end of the hollow rod (13) and is fitted with a bevel gear (15). The outer surface of the threaded rod (14) is symmetrically fitted with threaded sleeves. Lifting blocks (18) are symmetrically arranged inside the two grooved rods (12), and the lifting blocks (18) are fixedly connected to the threaded sleeves.
4. The sealing and cutting mechanism of a high-speed packaging machine according to claim 3, characterized in that, The hollow rod (13) is equipped with a dual-axis motor (16), and bevel gears (17) are installed at both ends of the dual-axis motor (16), and bevel gears (17) mesh with bevel gears (15).
5. The sealing and cutting mechanism of a high-speed packaging machine according to claim 1, characterized in that, The rotating mechanism (19) includes a rotating rod (20) and a rotating cylinder (27). The rotating rod (20) is rotatably connected inside the lifting block (18). A stop block (21) is installed on the outer surface of the rotating rod (20). Guide rods (22) are symmetrically installed on the outer surface of the rotating rod (20). A threaded connector (23) is installed at the left end of the rotating rod (20). A nut (24) is sleeved on the outer surface of the threaded connector (23). A bevel gear (25) is installed at the right end of the rotating rod (20).
6. The sealing and cutting mechanism of a high-speed packaging machine according to claim 3, characterized in that, The lifting block (18) is equipped with an L-shaped block (26) on its side, and a bearing is installed on the side of the L-shaped block (26). The bearing is rotatably connected to the rotating cylinder (27). The outer surface of the rotating cylinder (27) is equipped with a bevel gear four (28), and the bevel gear four (28) and the bevel gear three (25) mesh. The inner wall of the rotating cylinder (27) is symmetrically equipped with a limiting block (29), and the limiting block (29) is located in the lifting groove (9). The bevel gear four (28) of the two rotating mechanisms (19) are in opposite directions.
7. The sealing and cutting mechanism of a high-speed packaging machine according to claim 1, characterized in that, The sealing and cutting mechanism (30) includes a rotating column (31) and a cutting blade (34). A through hole (32) is opened in the middle of the rotating column (31). Guide grooves (33) are symmetrically opened on the inner wall of the through hole (32). Several sealing and cutting groups are installed on the outer surface of the rotating column (31). Each sealing and cutting group includes a cutting blade (34) and two heat sealing rods (35). An electric heating wire is installed inside the heat sealing rod (35). A power supply is provided inside the rotating column (31).