A polyethylene film structure

Abstract

The utility model provides a kind of polyethylene film structure, including support cylinder and polyethylene film roll around on support cylinder, further including protective disc, the edge of the protective disc is connected with protective sheet, gap is between adjacent two protective sheets, the end of the protective disc and polyethylene film roll is in contact, the sidewall of protective sheet is adhered to the outer wall of polyethylene film roll after being bent, multiple the protective sheet is arranged along the axis of polyethylene film roll, the protective sheet is fixed on the outer wall of polyethylene film roll, reach the purpose of improving the protective effect of polyethylene film roll.

Description

Technical Field

[0001] This utility model relates to a polyethylene film structure. Background Technology

[0002] Currently, antistatic polyethylene film is widely used in various industrial packaging and electronic product manufacturing fields. For ease of storage and use, this type of film is usually supplied in the form of being wound on a take-up spool. In the prior art, to solve the problem of loose ends after the film is cut during use, Chinese patent CN218403163U discloses an antistatic polyethylene film structure. This structure uses a slider, a clamping mechanism, and barbs to tighten and fix the loose ends of the film, thus solving the problem of film looseness.

[0003] However, in practical applications, especially during the transportation and handling of the film roll, the exposed ends of the film roll are easily subjected to bumps and compression from the outside. Although existing technologies typically use bubble wrap to wrap the film roll together with the winding drum and secure it with tape for protection, this method provides limited protection.

[0004] The protective layer formed by bubble wrap and tape is relatively soft. When the end of the film roll is subjected to lateral pressure, the protective layer cannot provide sufficient support and resistance to deformation. This can easily cause deformation, indentation or damage to the edge of the inner polyethylene film, which seriously affects the subsequent performance of the film and the product yield. Utility Model Content

[0005] In view of this, the purpose of this utility model is to provide a polyethylene film structure to enhance the protection of polyethylene film rolls during transportation.

[0006] To solve the above-mentioned technical problems, the technical solution of this utility model is: a polyethylene film structure, including a support cylinder and a polyethylene film roll wound on the support cylinder, and a protective disc, wherein the edge of the protective disc is connected with a protective sheet, there is a gap between two adjacent protective sheets, the protective disc abuts against the end of the polyethylene film roll, the protective sheet is bent so that the side wall of the protective sheet fits against the outer wall of the polyethylene film roll, a plurality of the protective sheets are arranged along the axis of the polyethylene film roll, and the protective sheets are fixed to the outer wall of the polyethylene film roll.

[0007] To achieve the above technical solution, during assembly, the protective disc is coaxially aligned with the end face of the polyethylene film roll and brought into close contact with the end. Then, multiple protective sheets arranged along the axis are bent inwards, so that their sidewalls adhere to the outer cylindrical surface of the polyethylene film roll, and the protective sheets are secured with tape or strapping. The protective disc creates a rigid support layer at the end of the film roll, effectively resisting lateral compression and impact forces generated during transportation, preventing end deformation. The covering structure formed by the bent protective sheets achieves a stable connection between the protective component and the film roll, solving the problem of poor deformation resistance in existing flexible packaging leading to film edge damage or indentations, significantly improving product transportation safety and yield.

[0008] As a preferred embodiment of this utility model, a bubble wrap is provided on the outer wall of the polyethylene film roll, and the protective sheet is fixed to the side of the bubble wrap that faces away from the polyethylene film roll.

[0009] To achieve the above technical solution, before installing the protective tray, bubble wrap is pre-wrapped around the outer wall of the polyethylene film roll. The protective tray is then installed, and the protective sheet is bent to press firmly against the bubble wrap surface and secure it. This forms a dual protection system of inner soft cushioning and outer hard support. The bubble wrap provides flexible cushioning for the film roll body, absorbing vibration energy, while the protective sheet pressing the bubble wrap not only secures the protective tray but also prevents the bubble wrap from slipping or loosening during transportation, further improving the overall shock and drop resistance of the packaging.

[0010] As a preferred embodiment of this utility model, the protective plate has an insertion hole corresponding to the support cylinder, the insertion hole penetrates the protective plate and the inner diameter of the insertion hole is greater than or equal to the inner diameter of the support cylinder.

[0011] To achieve the above technical solution, during the manufacturing process of the protective disc, insertion holes corresponding to the positions of the support cylinder are pre-fabricated. The inner diameter of these insertion holes is designed to be greater than or equal to the inner diameter of the support cylinder. This ensures that after the protective disc is installed, the ports of the support cylinder are exposed through the insertion holes or have operating space. This guarantees that the protective disc will not interfere with the normal function of the support cylinder after installation, facilitating subsequent operations by forklift arms or lifting clamps directly extending into the support cylinder. The film roll can be transferred without removing the protective disc, thus balancing protection and ease of handling.

[0012] As a preferred embodiment of this utility model, a protective cover is connected to the socket via a snap-fit ​​structure, and the protective cover is used to seal the socket.

[0013] To achieve the above technical solution, in the storage state, the protective cover is aligned with the insertion hole on the protective plate and installed at the insertion hole using a snap-fit ​​structure, thus sealing the insertion hole. This achieves closed protection of the internal space of the support cylinder, effectively preventing foreign objects from entering the support cylinder through the insertion hole. This not only maintains the cleanliness of the product but also enhances the integrity and sealing of the overall structure.

[0014] As a preferred embodiment of this utility model, the snap-fit ​​structure includes a slot and a plate. The slot is formed on the inner wall of the insertion hole, and the plate is fixed to the edge of the protective cover. The plate is used to be embedded in the slot.

[0015] To achieve the above technical solution, during assembly, the protective cover is pushed into the insertion hole. The retaining plate along the edge of the cover undergoes elastic deformation under pressure and slides into a groove on the inner wall of the insertion hole. Locking is achieved through the interlocking of the retaining plate and the groove. Utilizing the mechanical interlocking principle of convex-concave fit, the protective cover can be quickly disassembled and positioned. This prevents the protective cover from falling off during transportation vibrations and allows installation to be completed without additional tools, simplifying the operation process.

[0016] As a preferred embodiment of this utility model, the protective cover has a placement groove on the side facing away from the support cylinder, and a lifting component is fixed on the inner wall of the placement groove.

[0017] To achieve the above technical solution, when the protective cover needs to be removed, the operator inserts their fingers into the recessed area on the back of the cover, grasps the lifting mechanism, and applies force outward to disengage the cover from the locking structure. This provides an ergonomic point of application, greatly reducing the difficulty of removing the cover and improving operational efficiency. Furthermore, placing the lifting mechanism within the recessed area prevents the lifting structure from protruding from the cover surface and being easily scratched or damaged during transportation.

[0018] As a preferred embodiment of this utility model, the card slots are provided in multiple ways and are evenly distributed along the axis of the insertion hole, and each card slot is fitted with a card plate.

[0019] To achieve the above technical solution, during the installation of the protective cover, multiple clamping plates evenly distributed along the axis are sequentially embedded into their corresponding slots, forming multi-point support. This ensures that the protective cover is subjected to uniform force, preventing tilting or incomplete sealing due to force applied to a single point. The multi-point clamping significantly improves the stability and shock resistance of the connection, ensuring that the protective cover maintains a tight seal even under severe shaking conditions. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the external structure of this utility model; Figure 2 The exploded structure diagram is shown to illustrate this utility model; Figure 3This is a schematic diagram illustrating the explosive structure between the protective disc and the protective cover; Figure 4 This is a cross-sectional structural diagram of the protective cover.

[0021] Reference numerals: 1. Support cylinder; 2. Polyethylene film roll; 3. Bubble wrap; 4. Protective disc; 5. Protective sheet; 6. Insertion hole; 7. Protective cover; 8. Snap-fit ​​structure; 9. Slot; 10. Card plate; 11. Placement groove; 12. Lifting component. Detailed Implementation

[0022] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings, so that the technical solution of this utility model can be more easily understood and mastered.

[0023] A polyethylene film structure includes a support cylinder 1 and a polyethylene film roll 2 wound on the support cylinder 1. The unwound end of the polyethylene film roll 2 is fixed to the outer wall of the polyethylene film roll 2 with adhesive tape. The length of the support cylinder 1 is equal to the width of the polyethylene film roll 2, and the support cylinder 1 is made of plastic. A bubble wrap 3 is fitted onto the outer wall of the polyethylene film roll 2 by wrapping the sheet-like bubble wrap 3 around the outer wall of the polyethylene film roll 2, and then fixing both ends of the bubble wrap 3 with adhesive tape.

[0024] The protective disc 4 is made of corrugated cardboard. Protective sheets 5 are integrally connected to the edge of the protective disc 4, and multiple protective sheets 5 are evenly distributed along the axis of the protective disc 4 to create a gap between adjacent protective sheets 5. The outer diameter of the protective disc 4 is greater than or equal to the outer diameter of the polyethylene film roll 2. In this embodiment, the outer diameter of the protective disc 4 is 2 cm larger than the outer diameter of the polyethylene film roll 2.

[0025] The surface of the protective disc 4 abuts against the end of the polyethylene film roll 2. The protective sheet 5 is bent along the connection between the protective sheet 5 and the protective disc 4 so that the surface of the protective sheet 5 is attached to the outer wall of the bubble wrap 3. Then, the protective sheet 5 and the bubble wrap 3 are fixedly connected with tape.

[0026] The protective disc 4 has an insertion hole 6 corresponding to the support cylinder 1. The protective disc 4 and the polyethylene film roll 2 are coaxially arranged, and the insertion hole 6 is coaxially arranged with the support cylinder 1. The insertion hole 6 penetrates the protective disc 4, and the inner diameter of the insertion hole 6 is greater than or equal to the inner diameter of the support cylinder 1, and the inner diameter of the insertion hole 6 is less than the outer diameter of the support cylinder 1.

[0027] A protective cover 7 is connected to the socket 6 via a snap-fit ​​structure 8. The protective cover 7 is used to seal the socket 6. The snap-fit ​​structure 8 includes a slot 9 and a plate 10. The slot 9 is formed on the inner wall of the socket 6, and multiple slots 9 are evenly distributed along the axis of the socket 6. The plate 10 is fixed to the edge of the protective cover 7 and is used to be embedded in the slot 9. Each plate 10 corresponds to one slot 9.

[0028] A placement groove 11 is provided on the side of the protective cover 7 facing away from the support cylinder 1, and a lifting component 12 is integrally connected to the inner wall of the placement groove 11. The lifting component 12 can be in the form of a sheet, rod, or block.

[0029] The protective cover 7, the card plate 10, and the lifting component 12 are integrated into one unit.

[0030] Of course, the above are just typical examples of this utility model. In addition, this utility model may have many other specific implementation methods. All technical solutions formed by equivalent substitution or equivalent transformation fall within the scope of protection claimed by this utility model.

Claims

1. A polyethylene film structure, comprising a support cylinder (1) and a polyethylene film roll (2) wound on the support cylinder (1), characterized in that: It also includes a protective disc (4), the edge of which is connected to a protective sheet (5), and there is a gap between two adjacent protective sheets (5). The protective disc (4) abuts against the end of the polyethylene film roll (2). After the protective sheet (5) is bent, the side wall of the protective sheet (5) is attached to the outer wall of the polyethylene film roll (2). Multiple protective sheets (5) are arranged along the axis of the polyethylene film roll (2), and the protective sheets (5) are fixed to the outer wall of the polyethylene film roll (2).

2. The polyethylene film structure according to claim 1, characterized in that: A bubble wrap (3) is fitted onto the outer wall of the polyethylene film roll (2), and the protective sheet (5) is fixed to the side of the bubble wrap (3) facing away from the polyethylene film roll (2).

3. The polyethylene film structure according to claim 1, characterized in that: The protective plate (4) has a corresponding insertion hole (6) on it, which penetrates the protective plate (4) and the inner diameter of the insertion hole (6) is greater than or equal to the inner diameter of the support cylinder (1).

4. A polyethylene film structure according to claim 3, characterized in that: A protective cover (7) is connected to the socket (6) via a snap-fit ​​structure (8), and the protective cover (7) is used to block the socket (6).

5. A polyethylene film structure according to claim 4, characterized in that: The snap-fit ​​structure (8) includes a slot (9) and a plate (10). The slot (9) is opened on the inner wall of the insertion hole (6). The plate (10) is fixed on the edge of the protective cover (7). The plate (10) is used to be embedded in the slot (9).

6. A polyethylene film structure according to claim 4, characterized in that: The protective cover (7) has a placement groove (11) on the side opposite to the support cylinder (1), and a lifting member (12) is fixed on the inner wall of the placement groove (11).

7. A polyethylene film structure according to claim 5, characterized in that: The card slots (9) are provided in multiple ways and are evenly distributed along the axis of the insertion hole (6), and each card slot (9) is fitted with a card plate (10).

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