Plastic film rotary packing device
The rotating locking structure designed with lifting mechanism and supplementary components solves the problem of equipment downtime during film roll replacement, enabling rapid film roll replacement and efficient equipment operation, thereby improving production efficiency and equipment reliability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-29
- Publication Date
- 2026-03-31
AI Technical Summary
Traditional plastic film packaging equipment requires tedious disassembly and replacement after the film rolls are used up, resulting in long downtime, reduced production efficiency, and increased maintenance costs.
The design incorporates a lifting mechanism and supplementary components, utilizing a locking structure of rotating rings and locking posts to achieve rapid switching and fixing of the film roll. Springs provide stability and convenience, simplifying the film roll replacement process.
It enables rapid film roll replacement, reduces equipment downtime, improves production efficiency and equipment reliability, and lowers maintenance costs.
Smart Images

Figure CN224061260U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of packaging equipment technology, and in particular to a plastic film rotary packaging device. Background Technology
[0002] In today's booming modern packaging industry, the efficiency of plastic film production and packaging is crucial to the entire industrial chain, as plastic film is a widely used packaging material. Rotary plastic film packaging equipment is an important piece of equipment in this critical process, responsible for the orderly and efficient packaging of produced plastic film for subsequent storage, transportation, and sales.
[0003] Traditional plastic film packaging equipment typically employs a mechanical structure with a single roll of film fixed in place. A fixed bracket is installed on one side of the equipment, and the film roll is mounted on the bracket via a shaft. One end of the film is led out, passes around a series of guide rollers, and finally reaches the packaging area. Its technical principle is simple and intuitive: relying on the rotation of the film roll itself, and with the assistance of an external traction device, the film is continuously fed out, working in conjunction with the packaging machinery to complete the film cutting, sealing, and other packaging processes.
[0004] However, this traditional packaging device has certain problems. Whenever the film roll is used up, the entire packaging process has to stop abruptly. Operators need to shut down the equipment, laboriously disassemble the used film roll, then move a new film roll over and accurately install it, and readjust the equipment to resume operation. This process is cumbersome and complex, not only easily causing a significant waste of time and keeping the equipment in a downtime state for extended periods, reducing production efficiency, but also causing additional wear and tear on other components of the equipment due to frequent start-ups and shutdowns, increasing maintenance costs, and seriously hindering the efficient and smooth operation of the packaging production line. Therefore, a plastic film rotary packaging device is proposed to solve the above problems. Utility Model Content
[0005] To overcome the above shortcomings, this utility model provides a plastic film rotary packaging device, which aims to improve the problem that after the film roll is used up, the equipment needs to be stopped and the film roll needs to be disassembled and replaced, which easily leads to wasted time.
[0006] To achieve the above objectives, the present invention adopts the following technical solution:
[0007] A plastic film rotary packaging device includes a lift, with film rolls provided on both sides of the lift, a connecting plate fixedly connected to the bottom of the lift, a turntable fixedly connected to one side of the connecting plate, a replenishment component provided on the outer wall of the lift, and a replacement component provided on the outer wall of the film rolls.
[0008] The supplementary component includes a rotating ring located on the outer wall of the elevator. A fixed plate is fixedly connected to the output end of the elevator. The rotating ring is rotatably connected inside the fixed plate and located at the bottom of the film rolls on both sides. A spring is provided on one side of the fixed plate. A protective pad is fixedly connected to one end of the spring. The protective pad is fixedly connected to the outer wall of the fixed plate. A pressing plate is fixedly connected to the other end of the spring. A rotating bar is rotatably connected inside the pressing plate. A support frame is fixedly connected to the outer wall of the rotating bar. One side of the support frame is fixedly connected to the outer wall of the fixed plate. A locking post is provided on the outer wall of the pressing plate. The locking post is slidably connected inside the fixed plate and engages with the rotating ring.
[0009] As a further description of the above technical solution:
[0010] The replacement component includes multiple locking posts 2, which are located on the outer wall of the film roll, and connecting frames 1 are rotatably connected to both sides of the outer wall of the film roll.
[0011] As a further description of the above technical solution:
[0012] Each of the connecting frames is provided with connecting rings at both ends, and a connecting frame is fixedly connected to one side of each connecting ring.
[0013] As a further description of the above technical solution:
[0014] Each of the connecting rings has a fixed tube fixedly connected to both sides inside, and a connecting post is slidably connected inside each of the fixed tubes.
[0015] As a further description of the above technical solution:
[0016] Each of the first connecting posts is rotatably connected to a second connecting post, and each of the second connecting posts is rotatably connected to a connecting block on its outer wall.
[0017] As a further description of the above technical solution:
[0018] Each of the connecting posts is fixedly connected to one end with a locking post two, which engages with the interior of the connecting frame one;
[0019] As a further description of the above technical solution:
[0020] Each of the connecting posts is provided with a spring on its outer wall. One end of the spring is fixedly connected to the inner wall of the fixing tube, and the other end of the spring is fixedly connected to the outer wall of the locking post.
[0021] This utility model has the following beneficial effects:
[0022] 1. In this utility model, the switching between two film rolls is achieved by rotating the rotating ring. At the same time, the position of the rotating ring is fixed by the engagement between the locking post and the rotating ring, which achieves the effect of quickly replenishing the film raw materials. This solves the problem that after the film roll is used up, the equipment needs to be stopped and the film roll needs to be disassembled and replaced, which easily causes time waste and improves the working efficiency of the equipment.
[0023] 2. In this utility model, the film roll can be replaced by the engagement between the second locking post and the first connecting frame. The rebound force of the second spring enhances the engagement stability between the second locking post and the first connecting frame, achieving the effect of quick replacement of the film roll. This solves the problem that the screws on the surface of the film roll need to be removed with a special tool during the replacement process, which is time-consuming, and improves the replacement efficiency of the film roll. Attached Figure Description
[0024] Figure 1 This is a three-dimensional schematic diagram of a plastic film rotary packaging device proposed in this utility model;
[0025] Figure 2 This is a schematic diagram of the fixed disk structure of a plastic film rotary packaging device proposed in this utility model;
[0026] Figure 3 This is a schematic diagram of the rotating ring structure of a plastic film rotary packaging device proposed in this utility model;
[0027] Figure 4 This is a schematic diagram of the two-post structure of a plastic film rotary packaging device proposed in this utility model;
[0028] Figure 5 for Figure 1 Enlarged view of point A in the image.
[0029] Legend:
[0030] 1. Lifting platform; 2. Connecting plate; 3. Turntable; 4. Fixed plate; 5. Rotary ring; 6. Protective pad; 7. Support frame; 8. Spring 1; 9. Pressing plate; 10. Locking post 1; 11. Rotating bar; 12. Connecting frame 1; 13. Connecting ring; 14. Connecting frame 2; 15. Fixed pipe; 16. Spring 2; 17. Locking post 2; 18. Connecting post 1; 19. Connecting block; 20. Film roll; 21. Connecting post 2. Detailed Implementation
[0031] 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.
[0032] Reference Figures 1-3 An embodiment of this utility model is provided: a plastic film rotating packaging device, including a lift 1, film rolls 20 are provided on both sides of the lift 1, a connecting plate 2 is fixedly connected to the bottom of the lift 1, a turntable 3 is fixedly connected to one side of the connecting plate 2, a supplementary component is provided on the outer wall of the lift 1, and a replacement component is provided on the outer wall of the film rolls 20.
[0033] The supplementary components include a rotating ring 5, located on the outer wall of the elevator 1. The rotating ring 5 supports and secures the film roll 20, ensuring its stability during operation. A fixed plate 4 is fixedly connected to the output end of the elevator 1, providing a reliable support structure for the rotating ring 5 and ensuring its smooth rotation within the plate. The rotating ring 5 is rotatably connected inside the fixed plate 4, allowing for flexible rotation and facilitating the replacement of the film roll 20. The rotating ring 5 is located at the bottom of the film rolls 20 on both sides. This arrangement effectively supports the film rolls 20 and prevents them from shifting position during operation. A spring 8 is provided on one side of the fixed plate 4, with a protective pad 6 fixedly connected to one end. The protective pad 6 provides cushioning, reducing wear and tear on the spring 8 due to excessive force during operation and protecting related components from impact. The protective pad 6 is fixedly connected to the outer wall of the fixed plate 4, forming a stable structure with the overall equipment. A pressing plate 9 is fixedly connected to the other end of spring 8. Pressing plate 9 uses the elastic force provided by spring 8 to achieve a reset function, ensuring a quick return to its initial state after pressing. A rotating bar 11 is rotatably connected inside pressing plate 9. During pressing, the bar 11 serves as a fulcrum, allowing pressing plate 9 to rotate smoothly, thus unlocking the rotating ring 5. A support frame 7 is fixedly connected to the outer wall of the rotating bar 11. One side of the support frame 7 is fixedly connected to the outer wall of the fixed disk 4, providing necessary support for the rotating bar 11 to ensure the stability of pressing plate 9 during operation and prevent displacement. A locking post 10 is provided on the outer wall of pressing plate 9. The locking post 10 is slidably connected inside the fixed disk 4, allowing for flexible position adjustment to facilitate locking or unlocking of the rotating ring 5. The locking post 10 engages with the rotating ring 5. This design firmly fixes the position of the rotating ring 5 during film roll 20 operation, preventing rotation or loosening and ensuring the reliability and safety of equipment operation.
[0034] Specifically, after the film roll 20 is used up, press the pressing plate 9 to rotate it around the rotating bar 11, pushing the locking pin 10 out of the rotating ring 5 and simultaneously compressing the spring 8, providing a force source for subsequent reset. Then, rotate the rotating ring 5 to move another film roll 20 to the area, ensuring the film roll 20 is in the working position for continued operation. Next, release the pressure on the pressing plate 9, and the spring 8 uses its own rebound force to push the locking pin 10 back into the slot inside the rotating ring 5, fixing the position of the rotating ring 5 and ensuring the film roll 20 does not shift during operation. Through these operations, rapid switching of the film roll 20 in different positions is achieved, shortening the time required for film replenishment, avoiding equipment downtime due to film depletion, and further improving the equipment's working efficiency and continuous operation capability.
[0035] Reference Figure 1 , Figure 4 and Figure 5The replacement component includes multiple locking posts 17, located on the outer wall of the film roll 20. These posts engage with the interior of the connecting frame 12, enabling the fixing and disassembly of the film roll 20. Connecting frames 12 are rotatably connected to the outer walls of both sides of the film roll 20. Their flexible rotation facilitates the replacement and adjustment of the film roll 20. Each connecting frame 12 has connecting rings 13 at both ends, providing connection stability and serving as a fixed fulcrum for the connecting frame 14, ensuring the overall structural robustness. A connecting frame 14 is fixedly connected to one side of each connecting ring 13, further enhancing the stability between the connecting ring 13 and other components, ensuring more reliable fixing of the film roll 20. Fixing tubes 15 are fixedly connected to both sides inside each connecting ring 13, supporting and limiting the sliding range of the connecting post 18, thus ensuring the accuracy and stability of the connection component during replacement operations. Each fixed tube 15 has a sliding connecting post 18 inside, which allows the movement of the locking post 17 via its sliding function, facilitating the installation and disassembly of the film roll 20. Each connecting post 18 also has a rotatably connected connecting post 21 inside, which, through its rotation, cooperates with a connecting block 19 to control the engagement or disengagement of the locking post 17. Each connecting post 21 has a rotatably connected connecting block 19 on its outer wall. The connecting block 19, acting as an operating component, adjusts the connecting post 21 by rotation, thereby controlling the movement of the connecting post 18. Each connecting post 18 has a fixed locking post 17 at one end, which, through engagement with the inside of the connecting frame 12, secures the film roll 20, preventing loosening during operation. Each connecting post 18 has a spring 16 on its outer wall, which provides restoring force, allowing the locking post 17 to quickly return to its stable position after operation. One end of spring 16 is fixedly connected to the inner wall of the fixing tube 15 to provide stable support and ensure the accurate direction of the spring force. The other end of spring 16 is fixedly connected to the outer wall of the locking post 17. Through the connection, the locking effect between the locking post 17 and the connecting frame 12 is enhanced, so that the film roll 20 can be firmly fixed and maintain stability after replacement, thereby improving replacement efficiency and equipment operation reliability.
[0036] Specifically, after use, the connecting bracket 12 is removed from the outer wall of the equipment. First, the connecting block 19 is rotated, and the connecting post 21 drives one end of the connecting post 18 to move the locking post 27 out of the inside of the connecting bracket 12. At the same time, the spring 26 is compressed, and the compression of the spring 26 provides the necessary elastic support for subsequent reset. Then, the used film roll 20 is removed from the inner wall of the fixing tube 15, ensuring that the inside of the fixing tube 15 is empty, in preparation for replacing the new film roll 20. Next, the connecting brackets 12 at both ends of the new film roll 20 are repositioned and moved to the inner wall of the connecting ring 13, so that the connecting brackets 12 fit tightly with the equipment, ensuring the stability and accuracy of the film roll 20 installation. Then, the connecting block 19 is rotated to a 90-degree position again, pushing the locking post 27 back into the inside of the connecting bracket 12, ensuring a stable and secure connection. Meanwhile, by utilizing the rebound force of spring 2 16, the locking effect between the locking post 2 17 and the inside of the connecting frame 1 12 is further enhanced, increasing the firmness of the connection and enabling portable disassembly and installation of the film roll 20.
[0037] Working principle: After the film roll 20 is used up, press the pressing plate 9, causing it to rotate around the rotating bar 11 as the center, pushing the locking pin 10 out of the rotating ring 5 and squeezing the spring 8. Then, rotate the rotating ring 5 to rotate another film roll 20 to the area. Next, release the pressing pressure on the pressing plate 9, and use the rebound force of the spring 8 to push the locking pin 10 back into the slot inside the rotating ring 5, thus fixing the position of the rotating ring 5 and preventing the film roll 20 from shifting during operation. This shortens the film replenishment time and improves the working efficiency of the equipment. Finally, remove the used connecting bracket 12 from the outside of the equipment. The wall is disassembled, the connecting block 19 is rotated, and the locking pin 17 at one end of the connecting pin 18 is moved out of the connecting frame 12 through the connecting pin 21, and the spring 216 is pushed to compress. Then the used film roll 20 is moved out of the inner wall of the fixing tube 15. Then the connecting frame 12 at both ends of the other film roll 20 is moved back to the inner wall of the connecting ring 13. Then the connecting block 19 is rotated ninety degrees again, and the locking pin 217 is pushed to lock back into the inside of the connecting frame 12. The rebound force of the spring 216 is used to enhance the locking effect between the locking pin 217 and the inside of the connecting frame 12, so as to realize the portable disassembly and installation of the film roll 20.
[0038] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present 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 the present utility model should be included within the protection scope of the present utility model.
Claims
1. A rotating packaging device for plastic film comprising an elevator (1), characterized in that: The elevator (1) is provided with a film roll (20) on both sides, the bottom of the elevator (1) is fixedly connected with a connecting plate (2), one side of the connecting plate (2) is fixedly connected with a rotating disc (3), the outer wall of the elevator (1) is provided with a supplement assembly, and the outer wall of the film roll (20) is provided with a replacement assembly. The supplement assembly comprises a rotating ring (5), the rotating ring (5) is located on the outer wall of the elevator (1), the output end of the elevator (1) is fixedly connected with a fixed disc (4), the rotating ring (5) is rotatably connected in the inside of the fixed disc (4), the rotating ring (5) is located at the bottom of the film roll (20) on both sides, one side of the fixed disc (4) is provided with a spring (8), one end of the spring (8) is fixedly connected with a protective pad (6), one side of the protective pad (6) is fixedly connected to the outer wall of the fixed disc (4), the other end of the spring (8) is fixedly connected with a pressing plate (9), the inside of the pressing plate (9) is rotatably connected with a rotating strip (11), the outer wall of the rotating strip (11) is fixedly connected with a support frame (7), one side of the support frame (7) is fixedly connected to the outer wall of the fixed disc (4), the outer wall of the pressing plate (9) is provided with a clamping column (10), the clamping column (10) is slidably connected in the inside of the fixed disc (4), and the clamping column (10) is clamped with the rotating ring (5).
2. A rotating plastic film packaging apparatus according to claim 1, characterized in that: The replacement assembly comprises a plurality of clamping columns (17), and the clamping columns (17) are located on the outer wall of the film roll (20).
3. A rotating plastic film packaging apparatus according to claim 2, wherein: The connecting ring (13) is provided with a connecting ring (13) at both ends, and the connecting ring (13) is fixedly connected with a connecting frame (14) on one side.
4. A rotating plastic film packaging apparatus according to claim 3, wherein: The inside of the connecting ring (13) is fixedly connected with a fixed tube (15) on both sides, and the inside of the fixed tube (15) is slidably connected with a connecting column (18).
5. A rotating plastic film packaging apparatus according to claim 4, wherein: The inside of the connecting column (18) is rotatably connected with a connecting column (21), and the outer wall of the connecting column (21) is rotatably connected with a connecting block (19).
6. A rotating plastic film packaging apparatus as defined in claim 5, wherein: One end of the connecting column (18) is fixedly connected with a clamping column (17), and the clamping column (17) is clamped with the inside of the connecting frame (12).
7. A rotating plastic film packaging apparatus as defined in claim 6, wherein: The outer wall of the connecting column (18) is provided with a spring (16), one end of the spring (16) is fixedly connected to the inner wall of the fixed tube (15), and the other end of the spring (16) is fixedly connected to the outer wall of the clamping column (17).