A winding film machine is provided with a winding and clamping device
By introducing a clamping structure with buffer springs and return springs into the winding clamping device of the stretch film machine, combined with a rotation and adjustment system driven by a pneumatic cylinder and a motor, the problems of existing devices being unable to buffer and frequently adjusting sizes are solved, achieving stable clamping of items and automatic adaptive winding.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANDONG YI CHENG PLASTIC PACKAGING PROD CO LTD
- Filing Date
- 2025-08-20
- Publication Date
- 2026-06-26
AI Technical Summary
Existing stretch film machines use winding clamping devices that cannot buffer the clamped items during use, which can easily cause damage. Furthermore, the size of the stretch film needs to be frequently adjusted to accommodate goods of different sizes, resulting in low practicality.
A clamping device including a buffer spring and a return spring was designed. A pneumatic cylinder drives a push plate to slide the clamping plate and clamping rod. The compression action of the buffer spring and return spring is used to buffer and clamp the item. The automatic adjustment of the wrapping film and the stable wrapping of the item are achieved by using a rotary motor and an adjusting motor in conjunction with a threaded rod and a lifting rod structure.
It effectively reduces damage to items during the clamping process, achieves automatic adaptive winding of goods of different sizes, and improves the practicality and operational efficiency of the device.
Smart Images
Figure CN224409735U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of stretch film machine technology, specifically a winding clamping device for stretch film machines. Background Technology
[0002] A stretch film machine is a packaging equipment used for containerized storage, transportation, and mechanized loading and unloading of goods. It uses the tension of a stretch film to wrap and fix bulk or packaged objects, providing dust protection, moisture protection, cargo protection, and improved handling efficiency. It is widely used in industries such as food and beverage, chemical, electronics, building materials, and logistics, covering various packaging scenarios such as pallets, steel pipes, and auto parts. Stretch film machines require the winding and clamping of items during operation, thus necessitating a winding and clamping device for stretch film machines.
[0003] When operators use stretch film machines to roll up and clamp items, they often use corresponding stretch film machine roll-up clamping devices. Although the existing devices can achieve the purpose of roll-up and clamping, they cannot buffer the clamped items in actual use, which may cause damage to the items. In addition, the size of the stretch film needs to be frequently adjusted according to the size of the goods to be wrapped, which reduces its practicality. Utility Model Content
[0004] The purpose of this utility model is to provide a winding clamping device for a stretch film machine, in order to solve the problem mentioned in the background art that when operators use a stretch film machine to wind and clamp items, they often use corresponding winding clamping devices for stretch film machines. Although the existing devices can achieve the purpose of winding and clamping, they cannot buffer the clamped items in actual use, which may cause damage to the items. In addition, the size of the stretch film needs to be frequently adjusted according to the size of the goods to be wrapped, which reduces its practicality.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a winding clamping device for a stretch film machine, comprising a base, a rotating plate rotatably mounted on the top of the base, a rotary motor fixedly mounted inside the top of the base, the output end of the rotary motor penetrating the base and fixedly connected to the bottom of the rotating plate, a sliding groove being formed at both ends of the top of the rotating plate, a slider being movably mounted inside the sliding groove, a push plate being fixedly mounted on the top of the slider, a clamping rod being movably mounted on one side of the push plate, a clamping plate being fixedly mounted on one side of the clamping rod, a buffer spring being fixedly mounted between the clamping plate and the push plate, the inner surface of the buffer spring being movably connected to the outer surface of the clamping rod, the other side of the clamping rod penetrating the push plate and extending to the left side of the push plate, a connecting plate being fixedly mounted on the other side of the clamping rod, a fixing plate being fixedly mounted on the top of the rotating plate, a pneumatic cylinder being fixedly mounted on one side of the fixing plate, and the output end of the pneumatic cylinder penetrating the fixing plate and fixedly connected to one side of the push plate.
[0006] Preferably, the top of the rotating plate is provided with strip grooves at equal intervals, and a round rod is fixedly installed inside each strip groove. A moving block is movably sleeved on the surface of each round rod. A return spring is fixedly installed on one side of each moving block. The other side of the return spring is fixedly connected to one side of the inside of the strip groove. The inner surface of the return spring is movably connected to the outer surface of the round rod. A limit plate is fixedly installed on the top of the moving block.
[0007] Preferably, a vertical plate is fixedly installed on the top of the base, and a horizontal plate is fixedly installed on one side of each vertical plate. A threaded rod is rotatably installed between the horizontal plates. A lifting rod is threaded onto the surface of the threaded rod. A lifting plate is fixedly installed on one side of the lifting rod. A circular plate is rotatably installed on the top of the lifting plate, and a rotating shaft is fixedly installed on the top of the circular plate.
[0008] Preferably, an adjusting motor is fixedly installed on the top of the horizontal plate, and the output end of the adjusting motor passes through the horizontal plate and is fixedly connected to the top of the threaded rod.
[0009] Preferably, one end of each vertical plate is fixedly mounted with a guide rail, and the outer surface of the guide rail is movably connected to the inner surface of the lifting rod.
[0010] Preferably, vertical rods are fixedly installed at both ends of the top of the base, vertical grooves are opened inside the vertical rods, movable blocks are movably installed inside the vertical grooves, and an adjustment plate is fixedly installed at one end of each movable block, and the other end of the adjustment plate is fixedly connected to one end of the lifting plate.
[0011] Compared with the prior art, the beneficial effects of this utility model are:
[0012] This type of winding clamping device for a stretch film machine, during daily use, involves the operator placing the item on top of the rotating plate and to one side of the limiting plate, then activating the pneumatic cylinder. The operation of the pneumatic cylinder pushes the push plate to slide, which in turn causes the slider to slide inside the groove. When the clamping plate contacts the surface of the object, it causes the clamping rod to slide inside the push plate, compressing the buffer spring. Subsequently, the push plate causes the connecting plate to slide, and the item pushes the limiting plate to slide. The limiting plate then causes the moving block to slide inside the strip groove and on the surface of the round rod. The moving block then compresses the return spring. Thus, the clamping force is buffered by the buffer spring and the return spring, thereby reducing damage to the item.
[0013] This type of wrapping film machine uses a winding clamping device. During daily use, the operator places the wrapping film on the top of the circular plate and the surface of the rotating shaft, then connects the wrapping film to the item. The rotary motor is then started, causing the rotating plate to rotate, which in turn rotates the item on top of the rotating plate, thus wrapping the item. At this point, the adjusting motor is started, causing the threaded rod to rotate. The threaded rod then drives the lifting rod to slide on the surface of the guide rail. The lifting rod then drives the lifting plate to slide, and simultaneously, the lifting plate drives the adjusting plate to slide. The adjusting plate then drives the movable block to slide inside the vertical groove. Finally, the lifting plate drives the circular plate to slide against the rotating shaft, thus raising and lowering the wrapping film, thereby wrapping items of different sizes. Attached Figure Description
[0014] Figure 1 This is the front view of the present invention;
[0015] Figure 2 This is a schematic diagram of the top structure of the base of this utility model;
[0016] Figure 3 For the present utility model Figure 2 Enlarged view of a portion of point A in the middle;
[0017] Figure 4 This is a cross-sectional view of the present invention;
[0018] Figure 5 For the present utility model Figure 4 Enlarged view of section B in the middle.
[0019] In the diagram: 1. Base; 2. Rotating plate; 3. Rotary motor; 4. Slide groove; 5. Slider; 6. Push plate; 7. Clamping rod; 8. Clamping plate; 9. Buffer spring; 10. Connecting plate; 11. Fixing plate; 12. Pneumatic cylinder; 13. Strip groove; 14. Round rod; 15. Moving block; 16. Return spring; 17. Limiting plate; 18. Vertical plate; 19. Horizontal plate; 20. Threaded rod; 21. Lifting rod; 22. Lifting plate; 23. Round plate; 24. Rotating shaft; 25. Adjusting motor; 26. Guide rail; 27. Vertical rod; 28. Vertical groove; 29. Movable block; 30. Adjusting plate. Detailed Implementation
[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0021] Example 1:
[0022] Please see Figures 1-5 A winding clamping device for a stretch film machine includes a base 1, a rotating plate 2 rotatably mounted on the top of the base 1, a rotary motor 3 fixedly mounted inside the top of the base 1, the output end of the rotary motor 3 passing through the base 1 and fixedly connected to the bottom of the rotating plate 2, and two sliding grooves 4 at both ends of the top of the rotating plate 2, with sliders 5 movably mounted inside the sliding grooves 4, a push plate 6 fixedly mounted on the top of the sliders 5, a clamping rod 7 movably mounted on one side of the push plate 6, and a clamping plate 8 fixedly mounted on one side of the clamping rod 7, with a buffer spring 9 fixedly mounted between the clamping plate 8 and the push plate 6, the inner surface of the buffer spring 9 movably connected to the outer surface of the clamping rod 7, and the other side of the clamping rod 7 passing through the push plate 6 and extending to the left side of the push plate 6. A connecting plate 10 is fixedly installed on the other side of the plate 7. A fixing plate 11 is fixedly installed on the top of the rotating plate 2. A pneumatic cylinder 12 is fixedly installed on one side of the fixing plate 11. The output end of the pneumatic cylinder 12 passes through the fixing plate 11 and is fixedly connected to one side of the push plate 6. A strip groove 13 is opened at equal intervals on the top of the rotating plate 2. A round rod 14 is fixedly installed inside the strip groove 13. A moving block 15 is movably sleeved on the surface of the round rod 14. A return spring 16 is fixedly installed on one side of the moving block 15. The other side of the return spring 16 is fixedly connected to one side of the inside of the strip groove 13. The inner surface of the return spring 16 is movably connected to the outer surface of the round rod 14. A limit plate 17 is fixedly installed on the top of the moving block 15.
[0023] In this invention, when it is necessary to clamp an item, the item can be placed on top of the rotating plate 2 and on one side of the limiting plate 17. Then, the pneumatic cylinder 12 is activated. The operation of the pneumatic cylinder 12 will push the push plate 6 to slide. Subsequently, the push plate 6 will drive the slider 5 to slide inside the slide groove 4. When the clamping plate 8 contacts the surface of the object, the clamping plate 8 will drive the clamping rod 7 to slide inside the push plate 6 and squeeze and compress the buffer spring 9. Then, the push plate 6 will drive the connecting plate 10 to slide. At the same time, the item will push the limiting plate 17 to slide. Subsequently, the limiting plate 17 will drive the moving block 15 to slide inside the strip groove 13 and on the surface of the round rod 14. Subsequently, the moving block 15 will squeeze and compress the reset spring 16, thus clamping the item. Then, the rotary motor 3 is activated. When the rotary motor 3 is running, it will cause the rotating plate 2 to rotate, thereby causing the item on top of the rotating plate 2 to rotate, thus winding and coiling the item.
[0024] Example 2:
[0025] Please see Figures 1-5A winding clamping device for a stretch film machine includes a vertical plate 18 fixedly installed on the top of a base 1, and a horizontal plate 19 fixedly installed on one side of each vertical plate 18. A threaded rod 20 is rotatably installed between the horizontal plates 19. A lifting rod 21 is threadedly sleeved on the surface of the threaded rod 20. A lifting plate 22 is fixedly installed on one side of the lifting rod 21. A circular plate 23 is rotatably installed on the top of the lifting plate 22, and a rotating shaft 24 is fixedly installed on the top of the circular plate 23. An adjusting motor 25 is fixedly installed on the top of the horizontal plate 19, and the output end of the adjusting motor 25 passes through the horizontal plate 19 and is fixedly connected to the top of the threaded rod 20.
[0026] In this invention, when the height of the stretch film needs to be automatically adjusted, the adjusting motor 25 is activated. The operation of the adjusting motor 25 causes the threaded rod 20 to rotate, which in turn causes the lifting rod 21 to slide. Since the design of the adjusting motor 25 can improve the rotation efficiency of the threaded rod 20, it can improve the adjustment efficiency of the lifting rod 21. Subsequently, the lifting rod 21 causes the lifting plate 22 to slide, and the lifting plate 22 causes the circular plate 23 and the rotating shaft 24 to slide, which can drive the stretch film to rise and fall, thereby wrapping items of different sizes.
[0027] Example 3:
[0028] Please see Figures 1-5 A winding clamping device for a stretch film machine, wherein a guide rail 26 is fixedly installed at one end of a vertical plate 18, and the outer surface of the guide rail 26 is movably connected to the inner surface of a lifting rod 21. Vertical rods 27 are fixedly installed at both ends of the top of a base 1. Vertical grooves 28 are opened inside the vertical rods 27. Movable blocks 29 are movably installed inside the vertical grooves 28. An adjusting plate 30 is fixedly installed at one end of each movable block 29, and the other end of the adjusting plate 30 is fixedly connected to one end of a lifting plate 22.
[0029] In this invention, the outer surface of the guide rail 26 and the inner surface of the lifting rod 21 are both smooth. Due to the design of the guide rail 26, the adjustment of the lifting rod 21 is more stable. When the lifting plate 22 slides, it will drive the adjusting plate 30 to slide. Subsequently, the adjusting plate 30 will drive the movable block 29 to slide inside the vertical groove 28. The outer surface of the movable block 29 and the inner surface of the vertical groove 28 are both smooth, which can make the movable block 29 slide more smoothly inside the vertical groove 28 and reduce the occurrence of jamming. Due to the design of the vertical groove 28 and the movable block 29, the smoothness of the sliding of the adjusting plate 30 is improved, thereby improving the stability of the adjustment of the lifting plate 22.
[0030] Working principle: First, the operator places the item on top of the rotating plate 2 and on one side of the limiting plate 17. Then, the pneumatic cylinder 12 is activated. The operation of the pneumatic cylinder 12 pushes the push plate 6 to slide. Subsequently, the push plate 6 drives the slider 5 to slide inside the slide groove 4. When the clamping plate 8 contacts the surface of the object, the clamping plate 8 drives the clamping rod 7 to slide inside the push plate 6 and squeezes and compresses the buffer spring 9. Then, the push plate 6 drives the connecting plate 10 to slide. At the same time, the item pushes the limiting plate 17 to slide. Subsequently, the limiting plate 17 drives the moving block 15 to slide inside the strip groove 13 and on the surface of the round rod 14. Then, the moving block 15 squeezes and compresses the return spring 16, thus clamping the item. Next, the stretch film is placed on top of the round plate 23 and the rotating shaft. The surface of 24 is then connected to the item, and the rotary motor 3 is started. When the rotary motor 3 is running, the rotating plate 2 will rotate, which will cause the item on the top of the rotating plate 2 to rotate, thus wrapping the item. At this time, the adjusting motor 25 is started. The operation of the adjusting motor 25 will cause the threaded rod 20 to rotate, and the threaded rod 20 will drive the lifting rod 21 to slide on the surface of the guide rail 26. Then the lifting rod 21 will drive the lifting plate 22 to slide, and the lifting plate 22 will drive the adjusting plate 30 to slide. Then the adjusting plate 30 will drive the movable block 29 to slide inside the vertical groove 28. Then the lifting plate 22 will drive the circular plate 23 to slide with the rotating shaft 24, which will drive the stretch film to rise and fall, thus wrapping items of different sizes.
[0031] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A winding clamping device for a stretch film machine, comprising a base (1), characterized in that: A rotating plate (2) is rotatably mounted on the top of the base (1). A rotary motor (3) is fixedly mounted inside the top of the base (1). The output end of the rotary motor (3) passes through the base (1) and is fixedly connected to the bottom of the rotating plate (2). Slide grooves (4) are provided at both ends of the top of the rotating plate (2). A slider (5) is movably mounted inside each slide groove (4). A push plate (6) is fixedly mounted on the top of each slider (5). A clamping rod (7) is movably mounted on one side of each push plate (6). A clamping plate (8) is fixedly mounted on one side of each clamping rod (7). A buffer spring (9) is fixedly installed between the plate (8) and the push plate (6). The inner surface of the buffer spring (9) is movably connected to the outer surface of the clamping rod (7). The other side of the clamping rod (7) passes through the push plate (6) and extends to the left side of the push plate (6). A connecting plate (10) is fixedly installed on the other side of the clamping rod (7). A fixing plate (11) is fixedly installed on the top of the rotating plate (2). A pneumatic cylinder (12) is fixedly installed on one side of the fixing plate (11), and the output end of the pneumatic cylinder (12) passes through the fixing plate (11) and is fixedly connected to one side of the push plate (6).
2. The winding clamping device for a stretch wrapping machine according to claim 1, characterized in that: The top of the rotating plate (2) is provided with strip grooves (13) at equal intervals. A round rod (14) is fixedly installed inside each of the strip grooves (13). A moving block (15) is movably sleeved on the surface of each round rod (14). A return spring (16) is fixedly installed on one side of each moving block (15). The other side of the return spring (16) is fixedly connected to one side of the inside of the strip groove (13). The inner surface of the return spring (16) is movably connected to the outer surface of the round rod (14). A limit plate (17) is fixedly installed on the top of the moving block (15).
3. The winding clamping device for a stretch wrapping machine according to claim 1, characterized in that: A vertical plate (18) is fixedly installed on the top of the base (1), and a horizontal plate (19) is fixedly installed on one side of the vertical plate (18). A threaded rod (20) is rotatably installed between the horizontal plates (19). A lifting rod (21) is threadedly connected to the surface of the threaded rod (20). A lifting plate (22) is fixedly installed on one side of the lifting rod (21). A circular plate (23) is rotatably installed on the top of the lifting plate (22), and a rotating shaft (24) is fixedly installed on the top of the circular plate (23).
4. The winding clamping device for a stretch wrapping machine according to claim 3, characterized in that: An adjusting motor (25) is fixedly installed on the top of the horizontal plate (19), and the output end of the adjusting motor (25) passes through the horizontal plate (19) and is fixedly connected to the top of the threaded rod (20).
5. The winding clamping device for a stretch wrapping machine according to claim 3, characterized in that: One end of each vertical plate (18) is fixedly equipped with a guide rail (26), and the outer surface of the guide rail (26) is movably connected to the inner surface of the lifting rod (21).
6. The winding clamping device for a stretch wrapping machine according to claim 1, characterized in that: Vertical rods (27) are fixedly installed at both ends of the top of the base (1). Vertical grooves (28) are opened inside the vertical rods (27). Movable blocks (29) are movably installed inside the vertical grooves (28). An adjustment plate (30) is fixedly installed at one end of the movable block (29), and the other end of the adjustment plate (30) is fixedly connected to one end of the lifting plate (22).