Winding film with buffering function

By setting a fixing mechanism on the stretch film roll and utilizing the protective pads and elastic mechanism of the top and bottom plates, the problem of stretch film rolls deforming or being damaged due to excessive pressure during stacking is solved, achieving a good protective effect and improving the service life of the stretch film.

CN223495880UActive Publication Date: 2025-10-31ZHEJIANG TEN MILLION NEW PACKAGING MATERIALS CO LTD
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Patent Information

Application Number
CN202423122771.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-17
Publication Date
2025-10-31
Estimated Expiration
2034-12-17

AI Technical Summary

Technical Problem

When existing stretch film is stacked after being rolled up, the roll at the bottom of the box is prone to deformation or damage due to excessive pressure, which affects its service life.

Method used

A buffer-function stretch film was designed. By setting a fixing mechanism on the stretch film roll, the protective pad and elastic mechanism between the top and bottom plates are used to avoid direct contact between the roll and the roll. The roll is fixed by a connection method of threaded rod and fixing block to prevent crushing damage.

Benefits of technology

It effectively protects the stretch film roll from compression during storage, thus improving the service life of the stretch film.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a wrapping film with a buffering function, which relates to the technical field of wrapping films and comprises a shell, a fixing mechanism is arranged on one side of the shell, and a wrapping film winding drum is arranged in the shell. By arranging the fixing mechanism, the wrapping film winding drum is placed on the base plate through the positioning block, the connecting rod is inserted into the wrapping film winding drum, the rotating disc is rotated to insert the threaded rod into the fixing block, the wrapping film winding drum is fixed between the top plate and the base plate, and the top plate and the base plate make contact with the wrapping film winding drum through the protection pad. The shell is placed in the box body, the fixed winding film winding drum is inserted into the shell, and then the box body is packaged, so that the situation that the winding film winding drum is directly contacted with other winding film winding drums to be extruded and damaged when the winding film winding drum is stacked up is avoided; the winding film reel has good protection measures during storage, and the service life of the winding film is prolonged.
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Description

Technical Field

[0001] This utility model relates to the field of stretch film technology, and in particular to a stretch film with a cushioning function. Background Technology

[0002] In the prior art, existing stretch films typically have good cushioning function. However, when these stretch films are completed, they usually need to be rolled up. After rolling, most of the directly rolled stretch film rolls are stacked in a box for storage. Often, each stretch film roll is in direct contact with the others. As the number of stretch film rolls stacked in the box increases, the stretch film roll at the bottom inevitably experiences greater pressure. This can easily cause deformation or damage to the stretch film rolls stacked at the bottom of the box. Consequently, the stretch film rolls do not have adequate protection during storage, which seriously affects the service life of the stretch film. Utility Model Content

[0003] The purpose of this utility model is to address the shortcomings of existing technologies. After the production and winding of common stretch film are completed, most of them are stacked in a box for storage. The stretch film roll at the bottom of the box is inevitably deformed or damaged due to the large pressure, which seriously affects the service life of the stretch film. This invention provides a stretch film with a buffer function.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: a buffer-function stretch film, comprising: a shell, a fixing mechanism provided on one side of the shell, a stretch film roll provided inside the shell, the fixing mechanism including a top plate provided on one side of the shell, an elastic mechanism provided on one side of the top plate, a turntable provided on one side of the top plate, a base plate provided on one side of the stretch film roll, a protective pad adhered to one side of the base plate, a fixing rod fixedly connected to one side of the top plate, a connecting rod fixedly connected to one side of the turntable, a limit block movably sleeved on the outer surface of the connecting rod through a first bearing, a threaded rod fixedly connected to one end of the connecting rod, a positioning block fixedly connected to one side of the base plate, and a fixing block fixedly connected to one side of the positioning block.

[0005] In a preferred embodiment, protective pads are attached to one side of the top plate and one side of the bottom plate, and one side of the protective pads is in contact with one side of the stretch film roll.

[0006] In one preferred embodiment, one end of the connecting rod slides through one side of the top plate, and one end of the fixing rod is provided with a limiting groove that matches the limiting block.

[0007] In a preferred embodiment, one end of the fixing block slides through one end of the fixing rod, and one end of the fixing block has a threaded groove that matches the thread on the threaded rod.

[0008] In a preferred embodiment, the elastic mechanism includes a sleeve plate that is movably sleeved on the outer surface of the turntable via a second bearing, a connecting block being fixedly connected to one side of the sleeve plate, and a spring being sleeved on the outer surface of the connecting rod.

[0009] In a preferred embodiment, a groove adapted to the connecting block is provided on one side of the top plate, and a through hole adapted to the connecting rod is provided on one side of the connecting block. One end of the spring is welded to one side of the inner wall of the groove, and the other end of the spring is welded to one side of the connecting block.

[0010] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0011] This invention utilizes a fixing mechanism. The stretch film roll is placed on a base plate using a positioning block. A connecting rod is inserted into the inside of the stretch film roll, and the turntable is rotated to insert a threaded rod into the fixing block, thus fixing the stretch film roll between the top plate and the base plate. The top plate and the base plate use protective pads to contact the stretch film roll, preventing direct contact and compression damage. The outer shell is placed in a box, and the fixed stretch film roll is inserted into the outer shell before sealing the box. This design prevents the stretch film rolls from directly contacting other stretch film rolls and causing compression damage when stacked, providing good protection during storage and extending the service life of the stretch film. Attached Figure Description

[0012] Figure 1 A perspective view of a buffer wrapping film provided by this utility model.

[0013] Figure 2 A three-dimensional view of the internal structure of a buffer-functional wrapping film provided by this utility model.

[0014] Figure 3 A perspective cross-sectional view of the top plate of a buffer-functional wrapping film provided by this utility model.

[0015] Figure 4 A three-dimensional view of the chassis of a buffer-function wrapping film provided by this utility model.

[0016] Legend:

[0017] 1. Outer casing; 2. Fixing mechanism; 3. Stretch film roll;

[0018] 21. Top plate; 22. Elastic mechanism; 23. Turntable; 24. Base plate; 25. Protective pad; 26. Connecting rod; 27. Limiting block; 28. Threaded rod; 29. ​​Positioning block; 210. Fixing block; 211. Fixing rod; 221. Sleeve plate; 222. Connecting block; 223. Spring. Detailed Implementation

[0019] 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.

[0020] Example 1

[0021] like Figure 1-4 As shown, this utility model provides a technical solution: a buffer-function stretch film, comprising: a shell 1, a fixing mechanism 2 on one side of the shell 1, and a stretch film roll 3 inside the shell 1. The fixing mechanism 2 includes a top plate 21 on one side of the shell 1, and protective pads 25 are adhered to one side of the top plate 21 and one side of the base plate 24. One side of the protective pads 25 contacts one side of the stretch film roll 3. By setting the protective pads 25, the protective pads 25 provide good protection, allowing the stretch film roll 3 to be protected by the protective pads 25. An elastic mechanism 22 is provided on one side of the top plate 21, and a turntable 23 is provided on one side of the top plate 21. A base plate 24 is provided on one side of the stretch film roll 3, and a protective pad 25 is adhered to one side of the base plate 24. A fixing rod 211 is fixedly connected to one side of the top plate 21, and a connecting rod 26 is fixedly connected to one side of the turntable 23. One end of the connecting rod 26 slides through the top plate. On one side of 21, a limiting groove adapted to the limiting block 27 is provided at one end of the fixing rod 211. By providing the limiting groove, the limiting block 27 can move normally inside the fixing rod 211, so that the connecting rod 26 has good limiting measures when moving inside the fixing rod 211. The limiting block 27 is movably sleeved on the outer surface of the connecting rod 26 through the first bearing. A threaded rod 28 is fixedly connected to one end of the connecting rod 26. A positioning block 29 is fixedly connected to one side of the chassis 24. A fixing block 210 is fixedly connected to one side of the positioning block 29. One end of the fixing block 210 slides through one end of the fixing rod 211, and a threaded groove matching the thread on the threaded rod 28 is provided at one end of the fixing block 210. By providing the threaded groove, the threaded rod 28 can be threaded into the interior of the fixing block 210, so that the fixing rod 211 and the positioning block 29 can be connected and fixed by means of the threaded rod 28 and the fixing block 210.

[0022] Example 2

[0023] like Figure 1-3As shown, the elastic mechanism 22 includes a sleeve 221 that is movably sleeved on the outer surface of the turntable 23 via a second bearing. A connecting block 222 is fixedly connected to one side of the sleeve 221. A spring 223 is sleeved on the outer surface of the connecting rod 26. A groove adapted to the connecting block 222 is opened on one side of the top plate 21. By opening the groove, the connecting block 222 can move normally inside the top plate 21. A through hole adapted to the connecting rod 26 is opened on one side of the connecting block 222. By opening the through hole, the connecting rod 26 can slide normally through the connecting block 222. One end of the spring 223 is welded to one side of the inner wall of the groove, and the other end of the spring 223 is welded to one side of the connecting block 222. By setting the spring 223, the spring 223 provides good elastic force, so that the connecting block 222 can maintain a good and stable position with the help of the elastic force of the spring 223.

[0024] Working principle:

[0025] like Figure 1-4 As shown, during use, the finished stretch film roll 3 is placed on the base 24. The base 24 contacts the stretch film roll 3 using the protective pad 25. The positioning block 29 on the base 24 is inserted into the interior of the stretch film roll 3 and positions it. After the stretch film roll 3 is placed, the fixing rod 211 is inserted into the other side. The top plate 21 gradually approaches the stretch film roll 3, and the fixing rod 211 gradually fits onto the outer surface of the fixing block 210 until the protective pad 25 on the top plate 21 contacts the stretch film roll 3. The sleeve 221 is slowly pressed and moved. During the movement of the sleeve 221, the turntable 23 is moved. The connecting rod 26 moves gradually inside the fixing rod 211 along with the movement of the turntable 23. The connecting block 222 and the limiting block 27 move simultaneously. The spring 223 is affected by the pressing force. The shape gradually changes. As the sleeve 221 is pressed, the threaded rod 28 gradually moves closer to the fixing block 210 until the sleeve 221 can no longer move. The threaded rod 28 contacts the fixing block 210. The sleeve 221 is pressed and the turntable 23 is rotated. During the rotation of the turntable 23, the connecting rod 26 is rotated. During the rotation of the connecting rod 26, the threaded rod 28 is rotated. The threaded rod 28 gradually inserts into the interior of the fixing block 210 until the turntable 23 can no longer rotate. The stretch film roll 3 is fixed between the base plate 24 and the top plate 21. The outer shell 1 is placed in the box to be packaged by the stretch film roll 3. After the outer shell 1 is placed, the stretch film roll 3, which is fixed by the top plate 21 and the base plate 24, is inserted into the interior of the outer shell 1 and the box is sealed.

[0026] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A buffer wrapping film, characterized in that, include: The outer casing (1) has a fixing mechanism (2) on one side, and a wrapping film roll (3) is installed inside the outer casing (1). The fixing mechanism (2) includes a top plate (21) on one side of the outer casing (1), a spring mechanism (22) on one side of the top plate (21), a turntable (23) on one side of the top plate (21), a base plate (24) on one side of the wrapping film roll (3), and a protective pad is attached to one side of the base plate (24). (25) A fixing rod (211) is fixedly connected to one side of the top plate (21), a connecting rod (26) is fixedly connected to one side of the turntable (23), a limiting block (27) is movably sleeved on the outer surface of the connecting rod (26) through the first bearing, a threaded rod (28) is fixedly connected to one end of the connecting rod (26), a positioning block (29) is fixedly connected to one side of the base plate (24), and a fixing block (210) is fixedly connected to one side of the positioning block (29).

2. The buffer wrapping film according to claim 1, characterized in that: Protective pads (25) are attached to one side of the top plate (21) and one side of the bottom plate (24), and one side of the protective pads (25) is in contact with one side of the wrapping film roll (3).

3. The buffer wrapping film according to claim 1, characterized in that: One end of the connecting rod (26) slides through one side of the top plate (21), and one end of the fixing rod (211) is provided with a limiting groove that matches the limiting block (27).

4. The buffer wrapping film according to claim 1, characterized in that: One end of the fixing block (210) slides through one end of the fixing rod (211), and one end of the fixing block (210) has a threaded groove that matches the thread on the threaded rod (28).

5. The buffer wrapping film according to claim 1, characterized in that: The elastic mechanism (22) includes a sleeve (221) that is movably sleeved on the outer surface of the turntable (23) through a second bearing. A connecting block (222) is fixedly connected to one side of the sleeve (221), and a spring (223) is sleeved on the outer surface of the connecting rod (26).

6. The buffer wrapping film according to claim 5, characterized in that: The top plate (21) has a groove on one side that matches the connecting block (222), and the connecting block (222) has a through hole on one side that matches the connecting rod (26). One end of the spring (223) is welded to one side of the inner wall of the groove, and the other end of the spring (223) is welded to one side of the connecting block (222).