Aluminum laminated film for food packaging

Abstract

The utility model discloses an aluminum laminated film for food packaging, which belongs to the technical field of aluminum laminated films and comprises a winding drum, an aluminum laminated film is wound around the winding drum, two fixing discs are fixedly connected to the inner side wall of the winding drum, mounting assemblies are arranged at the outer ends of the two fixing discs, film pressing assemblies are arranged on the inner sides of the mounting assemblies, and limiting assemblies are arranged in the mounting assemblies. The film pressing assembly comprises a movable rod, one end of the movable rod is rotationally connected with a pressing plate, the pressing plate is in an arc shape, the outer end of the pressing plate is tightly attached to the outer surface of the aluminum laminated film, and the installation assembly and the film pressing assembly are installed through a fixing disc. The head end of the aluminized film is pressed, so that the head end of the unsealed aluminized film is not easy to disperse to cause wrinkles, the tensile layer is arranged between the outer layer and the aluminized layer of the aluminized film, and the tensile layer is clamped between the outer layer and the aluminized layer, so that the overall strength of the aluminized film can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of aluminized films, and more specifically to an aluminized film for food packaging. Background Art

[0002] Aluminized food packaging film is a material used for food packaging. It features a layer of aluminum coated on a plastic film through a special process. Aluminized film offers excellent gas, water vapor, and light barrier properties, effectively protecting the freshness and quality of food. Unlike aluminum foil composite film, aluminized film is produced by vacuum-coating aluminum onto a plastic substrate. It possesses a metallic luster and a high-end, bright appearance, making it suitable for high-end food packaging.

[0003] Chinese patent publication number CN206446226U discloses a degradable aluminized film comprising an aluminized layer, a degradable anti-sticking homopolymer polypropylene upper surface layer, a degradable antistatic homopolymer polypropylene core layer, and a degradable anti-sticking homopolymer polypropylene lower surface layer. This degradable aluminized film is used to reflect sunlight from the ground in orchards, allowing apples to ripen faster and maintain a consistent color, resulting in both improved flavor and aesthetics. Furthermore, after use, the aluminized film degrades into fragments under the influence of sunlight and moisture, which are gradually absorbed by the soil, eliminating the need for recycling and achieving a pollution-free environment.

[0004] Aluminum-coated film is often used for food packaging due to its excellent barrier properties. It is also often used in cake shops or home kitchens. Aluminum-coated film is similar to aluminum foil and has poor adhesion. Therefore, after the roll of aluminized film is unrolled for use, its head end is easy to unfold when stored, which is easy to wrinkle or spread out from the head end, causing inconvenience in use.

[0005] Therefore, it is necessary to provide a food packaging aluminized film to solve the above problems. Utility Model Content

[0006] The utility model provides an aluminized film for food packaging, which can improve the problem in the related art that after the rolled aluminized film is disassembled for use, its head end is easily unfolded when stored, thereby easily generating wrinkles, or spreading from the head end, thereby causing inconvenience in use.

[0007] An embodiment of the present application provides an aluminum-coated film for food packaging, comprising a roll, wherein the outer surface of the roll is wrapped with an aluminum-coated film, and the inner side wall of the roll is fixedly connected to two fixed disks, and the outer ends of the two fixed disks are provided with mounting components, the inner side of the mounting component is provided with a film pressing component, and the interior of the mounting component is provided with a limiting component, and the film pressing component includes a movable rod, one end of the movable rod is rotatably connected to a pressure plate, the pressure plate is arranged in an arc shape, and the outer end of the pressure plate is in close contact with the outer surface of the aluminum-coated film.

[0008] The above technical solutions in the embodiments of the present application have at least the following technical effects:

[0009] (1) Two fixed plates are fixed on the inner ends of the roll, and the installation assembly and the film pressing assembly are installed through the fixed plates. When the rolled aluminized film is unpacked and used, the movable rod is moved to make the pressing plate close to the head end of the aluminized film, pressing the head end of the aluminized film, so that the head end of the aluminized film after unpacking is not easy to spread out and cause wrinkles.

[0010] (2) A tensile layer is provided between the outer layer and the aluminum layer of the aluminized film. The tensile layer is made of a polyamide fiber mesh. It is sandwiched between the outer layer and the aluminum layer to increase the overall strength of the aluminized film. It is not easy to be broken during use, thereby increasing the tensile resistance of the aluminized film.

[0011] In some embodiments, the mounting assembly includes a limiting shell and a knob. The limiting shell is rotatably mounted on the outer end of the fixed disk, and a cavity is provided inside the limiting shell. The outer end of the limiting shell is provided with two symmetrically distributed sliding grooves.

[0012] In some embodiments, the outer end of the movable rod is fixedly connected to a slider, the movable rod passes through the two sliding grooves, the movable rod is slidably connected to the sliding grooves through the slider, and a movable groove is opened at the outer end of the movable rod.

[0013] In some embodiments, the limit assembly includes a mounting shell, the mounting shell is located inside the cavity of the limit shell, and the bottom end of the mounting shell is rotatably connected to the bottom end of the inside of the limit shell, the knob passes through the limit shell and extends into the cavity, and the bottom end of the knob is fixedly connected to the outer end of the mounting shell.

[0014] In some embodiments, the limiting assembly also includes two telescopic springs, both of which are located inside the mounting shell, and abutment blocks are provided on both sides of the mounting shell. The outer ends of the two abutment blocks are fixedly connected to the limiting blocks, and the abutment blocks are made of rubber material.

[0015] In some embodiments, the two ends of the telescopic spring are fixedly connected to the outer ends of the two limit blocks respectively, the abutment block is slidably connected to the inner wall of the mounting shell through the limit blocks, and the abutment block abuts against the inner wall of the movable groove.

[0016] In some embodiments, the aluminized film is composed of an outer layer, a tensile layer, an adhesive layer and an aluminized layer. The tensile layer and the aluminized layer are connected by the adhesive layer. The outer layer is arranged on the outer surface of the tensile layer. The outer layer is made of polyethylene material. The tensile layer is made of polyamide fiber mesh. The thickness of the aluminized layer is 0.05-0.1 microns. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the embodiments or descriptions of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 It is a partial enlarged structural schematic diagram of the utility model;

[0020] Figure 3 This is a schematic structural diagram of the film pressing assembly of the present utility model;

[0021] Figure 4 This is a schematic diagram of the structure of the limit assembly of the utility model;

[0022] Figure 5 This is a schematic diagram of the aluminum-plated film structure of the present utility model.

[0023] Description of the numbers in the figure:

[0024] 1. Aluminum coating; 11. Outer layer; 12. Tensile layer; 13. Adhesive layer; 14. Aluminum coating;

[0025] 2. Reel;

[0026] 3. Film pressing assembly; 31. Pressing plate; 32. Movable rod; 33. Slider; 34. Movable slot;

[0027] 4. Mounting assembly; 41. Limit housing; 42. Slide; 43. Knob;

[0028] 5. Fixed plate;

[0029] 6. Limiting assembly; 61. Mounting housing; 62. Telescopic spring; 63. Abutment block; 64. Limiting block. DETAILED DESCRIPTION

[0030] In order to make the technical problems, technical solutions and beneficial effects to be solved by this application more clearly understood, this application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this application and are not intended to limit this application.

[0031] Based on this, the problem in the related art that after the rolled aluminum-coated film is disassembled for use, its head end is easily unfolded when stored, which is easy to cause wrinkles, or spread out from the head end, causing inconvenience in use can be improved.

[0032] See also Figure 1-Figure 5 A food packaging aluminized film includes a reel 2, an aluminized film 1 is wound around the outer side of the reel 2, two fixed disks 5 are fixedly connected to the inner wall of the reel 2, and the outer ends of the two fixed disks 5 are provided with mounting components 4, a film pressing component 3 is provided inside the mounting component 4, and a limiting component 6 is provided inside the mounting component 4. The film pressing component 3 includes a movable rod 32, and one end of the movable rod 32 is rotatably connected to a pressing plate 31. The pressing plate 31 is arranged in an arc shape, and the outer end of the pressing plate 31 is close to the outer surface of the aluminized film 1.

[0033] The aluminized film 1 in this scheme is mainly used for food packaging and preservation, wherein the aluminized film 1 is wound around the outer periphery of the reel 2, the middle of the reel 2 is hollow, and two fixed disks 5 are fixedly connected inside it, the two fixed disks 5 are symmetrically distributed and are close to the two ends of the reel 2, and a mounting assembly 4 is provided at the outer end of the fixed disk 5. A film pressing assembly 3 that can move in both directions is provided inside the mounting assembly 4, and a limiting assembly 6 is also provided inside the mounting assembly 4. The limiting assembly 6 is mainly used to limit the film pressing assembly 3 when it moves to the corresponding When the aluminum film 1 is in the movable position, the limit assembly 6 can be rotated in the movable groove 34 by turning the knob 43, and the abutment block 63 abuts against the inner wall of the movable groove 34. The movable rod 32 can be limited by friction. After the rolled aluminum film 1 is unpacked and used, the pressure plate 31 is driven to move by moving the movable rod 32, so that the pressure plate 31 can be tightly attached to the head end of the aluminum film 1. The pressure plates 31 provided on both sides can press the two sides of the head end of the aluminum film 1, so that the head end of the unpacked aluminum film 1 is not easy to spread out and cause wrinkles, thereby improving its practicality.

[0034] Optionally, in some embodiments, see Figure 1-Figure 3 The mounting assembly 4 includes a limit housing 41 and a knob 43. The limit housing 41 is rotatably mounted on the outer end of the fixed disk 5, and a cavity is provided inside the limit housing 41. The outer end of the limit housing 41 is provided with two symmetrically distributed slide grooves 42.

[0035] The outer end of the movable rod 32 is fixedly connected with a slider 33 . The movable rod 32 passes through two slide grooves 42 . The movable rod 32 is slidably connected with the slide grooves 42 via the slider 33 . A movable groove 34 is formed at the outer end of the movable rod 32 .

[0036] The interior of the limiting shell 41 in this solution is hollow, and the bottom end of the limiting shell 41 is rotatably connected to the fixed disk 5. When the limiting shell 41 is rotated, it can drive the film pressing assembly 3 to rotate, so that the pressing plate 31 can align with the head end of the aluminum-plated film 1 after unpacking. The limiting assembly 6 is set inside the limiting shell 41, and two symmetrically distributed slide grooves 42 are opened on both sides of the limiting shell 41. The slide grooves 42 are adapted to the movable rod 32 and the slider 33, so that the movable rod 32 and the slider 33 can pass through the slide grooves. 42 slides, and at the same time, the slide groove 42 also limits the movable rod 32, so that it can only move back and forth in the slide groove 42, thereby improving its stability. A knob 43 is provided on the top of the limit shell 41, and a connecting rod is fixed to the bottom of the knob 43. The knob 43 passes through the top of the limit shell 41 through the connecting rod and extends to the interior of the limit shell 41. It is fixedly connected to the outer end of the installation shell 61 inside the limit shell 41, so that when the user turns the knob 43, the limit assembly 6 can be driven to rotate.

[0037] The slider 33 is fixed on the outer periphery of the movable rod 32, and the movable rod 32 slides inside the slide groove 42 on the limit shell 41 through the slider 33. A pressure plate 31 is rotatably connected to one end of the movable rod 32, and the pressure plate 31 is rotatably connected to one end of the movable rod 32 by a screw. The rotation damping of the pressure plate 31 can be adjusted by tightening the bolt. The pressure plate 31 is arranged in an arc shape so that it can fit more closely to the surface of the aluminum-plated film 1. A movable groove 34 is also provided at the outer end of the movable rod 32. The movable groove 34 is mainly used to cooperate with the limit assembly 6 to limit the movable rod 32. The pressure plate 31 has a rotatable structure. When the user takes the aluminum-plated film 1, the pressure plate 31 can be rotated to make it parallel to the movable rod 32, so as not to cause obstruction.

[0038] Optionally, in some embodiments, see Figure 2-Figure 4 The limit assembly 6 includes a mounting shell 61, which is located inside the cavity of the limit shell 41, and the bottom end of the mounting shell 61 is rotatably connected to the bottom end of the inside of the limit shell 41. The knob 43 passes through the limit shell 41 and extends into the cavity, and the bottom end of the knob 43 is fixedly connected to the outer end of the mounting shell 61.

[0039] The limiting assembly 6 also includes two telescopic springs 62, both of which are located inside the mounting shell 61. Abutment blocks 63 are provided on both sides of the mounting shell 61. The outer ends of the two abutment blocks 63 are fixedly connected to the limiting blocks 64, and the abutment blocks 63 are made of rubber material.

[0040] The two ends of the telescopic spring 62 are fixedly connected to the outer ends of the two limit blocks 64 respectively. The abutment block 63 is slidably connected to the inner wall of the mounting shell 61 through the limit blocks 64 , and the abutment block 63 abuts against the inner wall of the movable groove 34 .

[0041] The limit assembly 6 in this solution is arranged inside the limit housing 41 and is also arranged on the inner side of the movable groove 34. One side of the outer end of the mounting housing 61 is fixedly connected to the connecting rod of the knob 43, and the other end is rotatably connected to the inner bottom end of the limit housing 41, so that the knob 43 can drive the entire limit assembly 6 to rotate when it is rotated. The interior of the mounting housing 61 is hollow, and two telescopic springs 62 are arranged inside it. The two telescopic springs 62 are fixedly connected to the limit blocks 64 at both ends. The limit blocks 64 are slidably connected to the inner wall of the mounting housing 61, and the outer side of the limit blocks 64 is The abutment block 63 is fixed and made of rubber, which can provide greater friction. When the abutment block 63 is not in contact with the inner wall of the movable groove 34, the two limit blocks 64 can be pushed outward due to the force provided by the telescopic spring 62. At this time, the abutment block 63 will also follow the limit block 64 to extend outward. When the knob 43 is turned, the mounting shell 61 can drive the abutment block 63 to rotate. When the abutment block 63 abuts against the side wall of the movable groove 34, the force of the telescopic spring 62 can push the abutment block 63 outward all the time, thereby preventing the movable rod 32 from moving and limiting it.

[0042] When the user is using the aluminized film 1, the aluminized film 1 wound around the reel 2 will gradually become thinner with use. At this time, the movable rod 32 can slide in the slide groove 42 on the limit shell 41, so that the movable rod 32 can drive the pressure plate 31 to always be close to the aluminized film 1. After adjustment, the limit assembly 6 can be controlled by turning the knob 43 to limit the movable rod 32.

[0043] Optionally, in some embodiments, see Figure 5 The aluminized film 1 is composed of an outer layer 11, a tensile layer 12, an adhesive layer 13 and an aluminized layer 14. The tensile layer 12 and the aluminized layer 14 are connected by the adhesive layer 13. The outer layer 11 is arranged on the outer surface of the tensile layer 12. The outer layer 11 is made of polyethylene material, the tensile layer 12 is made of polyamide fiber mesh, and the thickness of the aluminized layer 14 is 0.05-0.1 microns.

[0044] The aluminized film 1 in this scheme is mainly composed of an outer layer 11, a tensile layer 12, an adhesive layer 13 and an aluminized layer 14, wherein the outer layer 11 is the outermost layer. The outer layer 11 is made of polyethylene material. Polyethylene has good durability, can resist the erosion of many chemicals, has good flexibility, is easy to be processed into various shapes, and is suitable for making films, bags and other packaging materials. At the same time, polyethylene has low permeability and can effectively block gas and moisture, and is suitable for applications such as food packaging. The tensile layer 12 is made of a polyamide fiber grid. The polyamide fiber is woven into a grid shape, which can increase the tensile resistance of the aluminized film 1 in the transverse and longitudinal directions, similar to the steel bars in concrete, and can effectively improve the tensile strength and wear resistance of the aluminized film 1, prevent stress concentration and tearing, thereby improving the overall strength and toughness of the aluminized film 1.

[0045] The tensile layer 12 and the aluminum-plated layer 14 are connected together by an adhesive layer 13, and the outer layer 11, the tensile layer 12 and the aluminum-plated layer 14 are compounded through heating and pressing process steps. The aluminum-plated layer 14 can be made by using vacuum aluminum plating technology to evenly cover the surface of the aluminum-plated film 1 with a layer of aluminum metal. The aluminum plating process can evenly cover the surface of the food packaging material with a layer of aluminum film to provide the function of blocking oxygen, moisture and light. Its thickness is 0.05-0.1 microns, so that it can achieve better effects and cost control.

[0046] Working principle: When using the aluminized film 1 in this solution, first rotate the pressure plate 31 so that it is parallel to the movable rod 32 so as not to cause any obstruction. Then the aluminized film 1 can be rolled out from the reel 2. When the removal is completed, the knob 43 can be turned to release the limit on the movable rod 32. At this time, the movable rod 32 slides in the slide groove 42 on the limit housing 41, so that the movable rod 32 drives the pressure plate 31 to always be close to the aluminized film 1. When the adjustment is completed, the knob 43 is turned again to release the limit. The mounting shell 61 can drive the abutment block 63 to rotate. When the abutment block 63 abuts against the side wall of the movable groove 34, the abutment block 63 can be pushed outward through the force of the telescopic spring 62, so that the movable rod 32 cannot move and is limited. A tensile layer 12 is provided between the outer layer 11 and the aluminum layer 14 of the aluminum-plated film 1. The tensile layer 12 is made of a polyamide fiber mesh and can be sandwiched between the outer layer 11 and the aluminum layer 14 to increase the overall strength of the aluminum-plated film 1.

Claims

1. A food packaging aluminum film, comprising a roll (2), characterized in that: The outer surface of the reel (2) is wrapped with an aluminum-plated film (1), and the inner side wall of the reel (2) is fixedly connected to two fixed disks (5), and the outer ends of the two fixed disks (5) are each provided with a mounting assembly (4), and the inner side of the mounting assembly (4) is provided with a film pressing assembly (3), and the interior of the mounting assembly (4) is provided with a limiting assembly (6); The film pressing assembly (3) comprises a movable rod (32), one end of which is rotatably connected to a pressing plate (31), the pressing plate (31) being arranged in an arc shape, and the outer end of the pressing plate (31) is in close contact with the outer surface of the aluminum-plated film (1).

2. The aluminized film for food packaging according to claim 1, characterized in that: The mounting assembly (4) comprises a limiting housing (41) and a knob (43). The limiting housing (41) is rotatably mounted on the outer end of the fixed disk (5), and a cavity is provided inside the limiting housing (41). The outer end of the limiting housing (41) is provided with two symmetrically distributed sliding grooves (42).

3. The aluminized film for food packaging according to claim 2, characterized in that: The outer end of the movable rod (32) is fixedly connected to a slider (33), the movable rod (32) passes through the two slide grooves (42), the movable rod (32) is slidably connected to the slide grooves (42) through the slider (33), and the outer end of the movable rod (32) is provided with a movable groove (34).

4. The aluminized film for food packaging according to claim 3, characterized in that: The limiting assembly (6) includes a mounting shell (61), the mounting shell (61) is located inside the cavity of the limiting shell (41), and the bottom end of the mounting shell (61) is rotatably connected to the bottom end inside the limiting shell (41), the knob (43) passes through the limiting shell (41) and extends into the cavity, and the bottom end of the knob (43) is fixedly connected to the outer end of the mounting shell (61).

5. The aluminized film for food packaging according to claim 4, characterized in that: The limiting assembly (6) further comprises two telescopic springs (62), both of which are located inside the mounting shell (61). Abutment blocks (63) are provided on both sides of the mounting shell (61), and the outer ends of the two abutment blocks (63) are fixedly connected to the limiting block (64). The abutment blocks (63) are made of rubber material.

6. The aluminized film for food packaging according to claim 5, characterized in that: The two ends of the telescopic spring (62) are respectively fixedly connected to the outer ends of the two limit blocks (64); the abutment block (63) is slidably connected to the inner wall of the mounting shell (61) through the limit blocks (64); and the abutment block (63) abuts against the inner wall of the movable groove (34).

7. The aluminized film for food packaging according to claim 1, characterized in that: The aluminized film (1) is composed of an outer layer (11), a tensile layer (12), an adhesive layer (13) and an aluminized layer (14), wherein the tensile layer (12) and the aluminized layer (14) are connected via the adhesive layer (13), the outer layer (11) is arranged on the outer surface of the tensile layer (12), the outer layer (11) is made of polyethylene material, the tensile layer (12) is made of polyamide fiber mesh, and the aluminized layer (14) has a thickness of 0.05-0.1 microns.

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