Winding shrink film packaging device

Abstract

The utility model provides a winding shrink film packing device which comprises a rack, a working table is fixedly installed on the rack, a sliding rail is arranged on the working table, a base is movably installed on the sliding rail, an adjustable unwinding device is movably installed on the base through a first rotating shaft, and the adjustable unwinding device comprises a first supporting rod, a second supporting rod, a third supporting rod and an unwinding mechanism. The first supporting rod is movably connected with the second supporting rod through a second rotating shaft, the third supporting rod is provided with a sliding hole, the second supporting rod is slidably connected with the sliding hole, and the third supporting rod is fixedly provided with the unwinding mechanism through a support. Through multi-shaft movement, the position and the angle of the unwinding mechanism can be conveniently adjusted, a worker can conveniently wind a winding film on a packaging box, the operation flexibility of the winding film winding device is improved, and the working efficiency is improved.

Description

Technical Field

[0001] This utility model belongs to the field of packaging technology, specifically relating to a wrapping shrink film packaging device. Background Technology

[0002] Stretch film (also known as shrink film or heat shrink film) is a widely used film material in product packaging. Its main function is to enhance the aesthetic appearance of products and provide reliable protection. In the packaging industry, cardboard box packaging is one of the most common forms of packaging. After products are packed into cardboard boxes to form cargo units, stretch film is usually used for secondary packaging to further enhance the waterproof performance and overall stability of the goods. This double packaging system can effectively ensure the integrity of goods during transportation and avoid problems such as loose packaging or moisture damage. Due to its excellent packaging performance, stretch film has become an important packaging material in the plastic sheet production industry. However, existing shrink film packaging equipment has poor flexibility, is very physically demanding for workers during packaging, and affects work efficiency.

[0003] Chinese utility model patent CN219361597U discloses a shrink wrap packaging device, including an operating table. An unwinding device is movably mounted at one end of the top of the operating table, and a functional platform is movably mounted on the side of one end of the operating table. A support rod is detachably mounted at the bottom of the functional platform. In this design, a fixing block is moved from the outer surface of the connecting shaft, and the wrapping film is fitted onto the surface of the connecting shaft. The fixing block is then pressed against the other end of the wrapping film, and a fixing bolt is used to secure the fixing block to the connecting shaft. The support block is then moved into the connecting groove to support the connecting shaft. This design is convenient to assemble and disassemble, simple to operate, and saves manpower. Furthermore, the fixing block prevents uneven stress on the wrapping film during rotation and unwinding, thus preventing jumping and facilitating packaging, improving the packaging efficiency of the device. The placement platform facilitates shrink wrapping, which is convenient, occupies little space, and is more flexible in use, improving the practicality of the device. However, its flexibility is relatively poor, and it is very physically demanding for workers during packaging, affecting work efficiency. Utility Model Content

[0004] The purpose of this invention is to provide a wrapping and shrink-wrapping device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a wrapping shrink film packaging device, comprising a frame, a worktable fixedly mounted on the frame, a slide rail on the worktable, a base movably mounted on the slide rail, and an adjustable unwinding device movably mounted on the base via a first rotating shaft. The adjustable unwinding device includes a first support rod, a second support rod, a third support rod, and an unwinding mechanism. The first support rod is movably connected to the second support rod via a second rotating shaft. The third support rod has a sliding hole, and the second support rod is slidably connected to the sliding hole. The unwinding mechanism is fixedly mounted on the third support rod via a bracket.

[0006] Preferably, the workbench is fixedly equipped with a rotary table.

[0007] Preferably, the base is provided with a screw hole, and a butterfly bolt is movably connected to the screw hole.

[0008] Preferably, the unwinding mechanism includes a connecting rod and a movable cylinder, the movable cylinder is movably mounted on the connecting rod, one end of the connecting rod is threaded, and the other end of the connecting rod is fixedly connected to a handle.

[0009] Compared with the prior art, the beneficial effects of this utility model are:

[0010] This invention features a slide rail on the workbench, and an adjustable unwinding device movably mounted on the base via a first rotating shaft. The base slides along the slide rail, allowing the adjustable unwinding device to move along the X-axis. The first rotating shaft allows the adjustable unwinding device to rotate along the Z-axis. The adjustable unwinding device includes a first support rod, a second support rod, a third support rod, and an unwinding mechanism. The third support rod has a sliding hole, and the second support rod is slidably connected to the sliding hole. The position of the unwinding mechanism is adjusted through the sliding engagement of the third and second support rods. The unwinding mechanism is used to hold the stretch film. The multi-axis movement facilitates adjustment of the position and angle of the unwinding mechanism, making it easier for workers to wind the stretch film onto packaging boxes, improving the operational flexibility and work efficiency of this invention. Attached Figure Description

[0011] Figure 1 This is a structural view of the first state of the adjustable unwinding device of this utility model.

[0012] Figure 2 This is a second structural view of the adjustable unwinding device of this utility model.

[0013] Figure 3 This is a structural view of the unwinding mechanism of this utility model.

[0014] The diagram is labeled as follows: 1. Frame; 2. Workbench; 3. Slide rail; 4. Base; 5. First rotating shaft; 6. Adjustable unwinding device; 7. First support rod; 8. Second support rod; 9. Third support rod; 10. Unwinding mechanism; 11. Second rotating shaft; 12. Sliding hole; 13. Bracket; 14. Rotary table; 15. Screw hole; 16. Butterfly bolt; 17. Connecting rod; 18. Movable cylinder; 19. Thread; 20. Tightening handle. Detailed Implementation

[0015] 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.

[0016] Example 1:

[0017] This utility model provides a wrapping device for shrink film, including a frame 1. A workbench 2 is fixedly mounted on the frame 1. The workbench 2 has a slide rail 3, and a base 4 is movably mounted on the slide rail 3. An adjustable unwinding device 6 is movably mounted on the base 4 via a first rotating shaft 5. The adjustable unwinding device 6 includes a first support rod 7, a second support rod 8, a third support rod 9, and an unwinding mechanism 10. The first support rod 7 is movably connected to the second support rod 8 via a second rotating shaft 11. The third support rod 9 has a sliding hole 12, and the second support rod 8 is slidably connected to the sliding hole 12. The third support rod 9 is fixedly mounted on the unwinding mechanism 10 via a bracket 13. A rotary table 14 is fixedly mounted on the workbench 2. The base 4 has a screw hole 15, and a butterfly bolt 16 is movably connected to the screw hole 15. The unwinding mechanism 10 includes a connecting rod 17 and a movable cylinder 18. The movable cylinder 18 is movably mounted on the connecting rod 17. One end of the connecting rod 17 has a thread 19, and the other end of the connecting rod 17 is fixedly connected to a handle 20.

[0018] Through the above technical solution, this utility model has a slide rail 3 on the workbench 2, and an adjustable unwinding device 6 is movably mounted on the base 4 via a first rotating shaft 5. The base 4 slides and adjusts on the slide rail 3, allowing the adjustable unwinding device 6 to move in the X-axis direction. The first rotating shaft 5 allows the adjustable unwinding device 6 to rotate in the Z-axis direction. The adjustable unwinding device 6 includes a first support rod 7, a second support rod 8, a third support rod 9, and an unwinding mechanism 10. The third support rod 9 has a sliding hole 12, and the second support rod 8 is slidably connected to the sliding hole 12. The position of the unwinding mechanism 10 is adjusted through the sliding cooperation between the third support rod 9 and the second support rod 8. The unwinding mechanism 10 is used to place the stretch film. Through multi-axis movement, the position and angle of the unwinding mechanism 10 can be easily adjusted, making it easier for workers to wind the stretch film onto the packaging box, improving the operational flexibility and work efficiency of this utility model.

[0019] Example 2:

[0020] In this embodiment, the worktable 2 is fixedly mounted on the frame 1. A linear slide rail 3 is provided on the surface of the worktable 2, extending along its length. A base 4 is slidably mounted on the slide rail 3, and the bottom of the base 4 has a groove that matches the slide rail 3, allowing the base 4 to slide smoothly along the slide rail 3. An adjustable unwinding device 6 is mounted on the upper end of the base 4 via a first rotating shaft 5. This first rotating shaft 5 is perpendicular to the plane of the worktable 2, allowing the adjustable unwinding device 6 to rotate around a vertical axis.

[0021] The adjustable unwinding device 6 includes a first support rod 7, a second support rod 8, a third support rod 9, and an unwinding mechanism 10. The lower end of the first support rod 7 is fixedly connected to the first rotating shaft 5 of the base 4, and the upper end is movably connected to the second support rod 8 via a second rotating shaft 11. The second rotating shaft 11 is horizontally positioned, allowing the second support rod 8 to swing relative to the first support rod 7 in a vertical plane. The third support rod 9 is a hollow tubular structure with a through sliding hole 12 inside, into which the free end of the second support rod 8 is inserted to form a sliding fit. By adjusting the insertion depth of the second support rod 8 in the sliding hole 12, the length of the entire unwinding device can be changed.

[0022] The unwinding mechanism 10 is fixedly mounted on the end of the third support rod 9 via a bracket 13. The unwinding mechanism 10 and the third support rod 9 are rigidly connected to ensure stability during the unwinding process.

[0023] In use, the operator first installs the stretch film roll onto the rotating shaft of the unwinding mechanism 10. Depending on the size and position of the items to be packaged, the position of the base 4 on the slide rail 3 can be adjusted to move the unwinding mechanism 10 horizontally. The entire unwinding device can be rotated via the first rotating shaft 5 to adjust the film exit direction. The second rotating shaft 11 allows the second support rod 8 to swing up and down relative to the first support rod 7, changing the unwinding height. The sliding engagement of the third support rod 9 with the second support rod 8 allows adjustment of the distance between the unwinding mechanism 10 and the worktable 2, accommodating packaging needs of different sizes.

[0024] This device achieves omnidirectional adjustment of the unwinding position through a multi-axis adjustment mechanism. The slide rail 3 provides horizontal movement freedom, the first rotating shaft 5 provides rotational freedom, the second rotating shaft 11 provides pitch adjustment, and the sliding hole 12 structure provides telescopic adjustment. This multi-degree-of-freedom design allows operators to easily apply the stretch film to the packaging at the optimal angle and position, greatly reducing operational difficulty and physical exertion.

[0025] Example 3:

[0026] In this embodiment, a workbench 2 is fixedly installed on the frame 1. The workbench 2 is provided with a slide rail 3, and a base 4 is movably installed on the slide rail 3. An adjustable unwinding device 6 is movably installed on the base 4 via a first rotating shaft 5. The adjustable unwinding device 6 includes a first support rod 7, a second support rod 8, a third support rod 9, and an unwinding mechanism 10. The first support rod 7 is movably connected to the second support rod 8 via a second rotating shaft 11. The third support rod 9 is provided with a sliding hole 12, and the second support rod 8 is slidably connected to the sliding hole 12. The third support rod 9 is fixedly installed with the unwinding mechanism 10 via a bracket 13.

[0027] A rotary table 14 is fixedly installed on the workbench 2. The rotary table 14 is used to hold the goods to be packaged and can rotate on the workbench 2. During the packaging process, the worker places the goods to be packaged on the rotary table 14 and rotates the goods by turning them. At the same time, the adjustable unwinding device 6 moves in the X-axis direction via the slide rail 3 to accommodate goods of different sizes. The first rotating shaft 5 allows the unwinding device to adjust its angle in the Z-axis direction, ensuring that the wrapping film can evenly cover the surface of the goods. The first support rod 7 and the second support rod 8 are angled through the second rotating shaft 11, and the third support rod 9 slides with the second support rod 8 through the sliding hole 12 to further adjust the position of the unwinding mechanism 10, so that it maintains a suitable distance from the goods.

[0028] The unwinding mechanism 10 is used to place the stretch film, which is evenly stretched and wrapped around the surface of the goods during rotation. Due to the rotation of the turntable 14, workers do not need to manually adjust the direction of the goods; they only need to control the position and angle of the unwinding device to complete the packaging, significantly reducing labor intensity. The rotation speed of the turntable 14 can be adjusted according to packaging requirements to ensure optimal stretching force and wrapping effect of the stretch film.

[0029] With the rotary table 14 in place, workers can complete packaging operations more efficiently, reduce manual labor, and improve overall work efficiency.

[0030] Example 4:

[0031] In this embodiment, a workbench 2 is fixedly installed on the frame 1. The workbench 2 is provided with a slide rail 3, and a base 4 is movably installed on the slide rail 3. An adjustable unwinding device 6 is movably installed on the base 4 via a first rotating shaft 5. The adjustable unwinding device 6 includes a first support rod 7, a second support rod 8, a third support rod 9, and an unwinding mechanism 10. The first support rod 7 is movably connected to the second support rod 8 via a second rotating shaft 11. The third support rod 9 is provided with a sliding hole 12, and the second support rod 8 is slidably connected to the sliding hole 12. The third support rod 9 is fixedly installed with the unwinding mechanism 10 via a bracket 13.

[0032] The base 4 is provided with screw holes 15, and butterfly bolts 16 are movably connected to the screw holes 15. The base 4 can slide and adjust on the slide rail 3 of the worktable 2, so that the adjustable unwinding device 6 can move in the X-axis direction to accommodate packaging boxes of different sizes. After the base 4 is moved to the appropriate position, the butterfly bolts 16 are tightened to fix the base 4 on the slide rail 3, preventing the base 4 from sliding during the packaging process and affecting the stability of the stretch film.

[0033] The adjustable unwinding device 6 achieves rotational adjustment in the Z-axis direction via the first rotating shaft 5, allowing the unwinding mechanism 10 to adjust its angle, facilitating the wrapping film to adhere to the packaging box surface at different angles. The first support rod 7 and the second support rod 8 are connected via the second rotating shaft 11, allowing the second support rod 8 to rotate relative to the first support rod 7, further increasing the adjustment freedom of the unwinding mechanism 10. The sliding hole 12 of the third support rod 9 slides with the second support rod 8, enabling the unwinding mechanism 10 to extend and retract in the Y-axis direction to adapt to packaging requirements of different heights.

[0034] The unwinding mechanism 10 is used to hold the stretch film roll. Through multi-axis adjustment, the stretch film can be fitted to the packaging box at the optimal angle and position, reducing the physical exertion of workers adjusting the packaging box or the stretch film roll. During packing, workers only need to push the packaging box or adjust the position of the unwinding mechanism 10 to efficiently complete the wrapping of the stretch film, improving work efficiency.

[0035] The device, through the slide rail 3, butterfly bolt 16, multi-axis adjustment mechanism and other structures, realizes the multi-degree-of-freedom adjustment of the unwinding mechanism 10, so that the stretch film can flexibly adapt to packaging boxes of different sizes and shapes, reduce the tedious operation of manual adjustment, and improve packaging efficiency.

[0036] Example 5:

[0037] The unwinding mechanism 10 of this embodiment includes a connecting rod 17 and a movable drum 18. The connecting rod 17 is movably installed inside the movable drum 18, allowing it to rotate freely within the drum. One end of the connecting rod 17 has a threaded structure 19, which matches a threaded hole 19 on the bracket 13, thus fixing the connecting rod 17 to the bracket 13 via the threaded connection. The other end of the connecting rod 17 is fixedly connected to a handle 20. The handle 20 is designed for easy manual operation; rotating the handle 20 causes the connecting rod 17 to rotate synchronously.

[0038] During the use of the film roll, when the roll is exhausted and needs to be replaced, the operator can apply rotational force by holding the handle 20, causing the connecting rod 17 to rotate axially. Since the thread 19 at one end of the connecting rod 17 engages with the threaded hole 19 of the bracket 13, the rotation will cause the thread 19 to gradually disengage from the bracket 13, thereby separating the connecting rod 17 from the bracket 13. At this time, the unwinding mechanism 10 can be completely removed from the bracket 13 for easy replacement of a new film roll.

[0039] When replacing a new stretch film roll, the new roll is placed on the movable cylinder 18, and then the unwinding mechanism 10 is reinstalled onto the bracket 13. Specifically, the threaded end 19 of the connecting rod 17 is aligned with the threaded hole 19 of the bracket 13, and the handle 20 is rotated in the opposite direction to re-engage the threaded end 19 until the connecting rod 17 is securely connected to the bracket 13. The stability of the threaded connection ensures that the unwinding mechanism 10 will not loosen or fall off during operation, guaranteeing the normal unwinding of the stretch film.

[0040] In this embodiment, the cooperative design of the connecting rod 17 and the movable cylinder 18 allows for quick disassembly and installation of the unwinding mechanism 10, significantly improving the efficiency of changing the stretch film roll. Simultaneously, the threaded connection 19 provides a reliable fixing effect, preventing the unwinding mechanism 10 from shifting during high-speed rotation or under stress, ensuring uniform release of the stretch film and improving packaging quality. Furthermore, the design of the handle 20 simplifies the operation steps, allowing workers to complete the replacement without additional tools, further optimizing the workflow.

[0041] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0042] The above description is only used to illustrate the technical solution of this utility model and is not intended to limit it. Any other modifications or equivalent substitutions made by those skilled in the art to the technical solution of this utility model, as long as they do not depart from the spirit and scope of the technical solution of this utility model, should be covered within the scope of the claims of this utility model.

Claims

1. A shrink wrapping device, comprising a frame, wherein a worktable is fixedly mounted on the frame, characterized in that, The workbench is equipped with a slide rail, and a base is movably mounted on the slide rail. An adjustable unwinding device is movably mounted on the base via a first rotating shaft. The adjustable unwinding device includes a first support rod, a second support rod, a third support rod, and an unwinding mechanism. The first support rod is movably connected to the second support rod via a second rotating shaft. The third support rod is provided with a sliding hole, and the second support rod is slidably connected to the sliding hole. The unwinding mechanism is fixedly mounted on the third support rod via a bracket.

2. The wrapping and shrink-wrapping device according to claim 1, characterized in that, The workbench is fixedly equipped with a rotary table.

3. The wrapping device for shrink film according to claim 1, characterized in that, The base is provided with a screw hole, and a butterfly bolt is movably connected to the screw hole.

4. The wrapping and shrink-wrapping device according to claim 1, characterized in that, The unwinding mechanism includes a connecting rod and a movable cylinder. The movable cylinder is movably mounted on the connecting rod. One end of the connecting rod is threaded, and the other end of the connecting rod is fixedly connected to a handle.

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