Composite film bag and production equipment thereof

Abstract

The present invention discloses a composite film bag and its production equipment, including a base layer, a heat insulation structure is arranged at the bottom of the base layer, a waterproof structure is arranged at the top of the base layer, a protective structure is arranged at the top of the waterproof structure, the base layer is composed of a PET layer and a plastic layer, the waterproof structure includes a hydrophobic film and a nano film, the heat insulation structure is composed of a reflective film and an infrared film, and the protective structure is composed of a polyester film and a wear-resistant coating. The present invention can improve the structural strength and structural functionality of the base layer by firstly arranging a heat insulation structure, a waterproof structure and a protective structure on the surface of the base layer, improve the scope of application of the composite film bag, and meet the use requirements of different environments. The present invention can improve the structural functionality of the existing composite film bag, replace the method of connecting the structure through a plurality of adhesive layers, prevent the structure from separating when subjected to a high temperature environment, and avoid affecting the wrapping protection effect of the composite film bag.

Description

Technical Field

[0001] The present invention relates to the technical field related to composite film bags, and in particular to a composite film bag and production equipment thereof. Background Art

[0002] Composite film bags are a kind of composite film for packaging. They are films with certain barrier properties and mechanical strength formed by combining two or more different materials through bonding, coating or co-extrusion. It can choose different composition structures and materials according to different packaging forms and requirements to meet the packaging items' barrier needs for oxygen, moisture, odor, light, etc. It also has the advantages of good printability, heat sealing performance and opening convenience. Composite film bags are widely used in food, medicine, cosmetics and other fields. They can effectively block oxygen, moisture, odor, etc., keep the items in the package dry, fresh and nutritious, have high tensile strength and tear strength, can protect the items in the package from damage, can be printed with various patterns and texts to improve the product's appearance and recognition, can be heat-sealed at high temperatures to ensure the packaging's sealing and moisture resistance, can be recycled and reused, and are environmentally friendly.

[0003] The composite film bag is mainly used to bond two or more different materials by glue. For example, the patent number disclosed on the China Patent Network is: 202120909058.3, and the patent name is: Composite film bag, which relates to the field of packaging film technology. The composite film bag includes a PET layer, an ink printing layer, a first adhesive layer, an aluminum foil layer, a second adhesive layer, a PE layer, a moisture-removing layer and a tensile mesh layer. The ink printing layer is arranged on the lower end face of the PET layer, the first adhesive layer is coated on the outer surface of the aluminum foil layer, and the second adhesive layer is coated on the inner surface of the aluminum foil layer. The PE layer is bonded to the lower end face of the second adhesive layer, and the moisture-removing layer is fixed on the lower end face of the PE layer. The moisture-removing layer includes a first nylon film, a groove, a silica gel desiccant layer, a second nylon film and a through hole. The first nylon film is fixed on the lower end face of the PE layer, and the groove is arranged on the lower end face of the first nylon film. The utility model improves anti-oxidation, heat-sealable, good sealing, printable, and can well maintain the fragrance of the product, while preventing the product from absorbing moisture.

[0004] However, the structure of the existing composite film bag is relatively simple, and the structure is mainly connected by a number of adhesive layers. When the structure is exposed to a high temperature environment, it is easy to separate, resulting in the composite film bag The wrapping and protective effect is affected.

[0005] Therefore, it is necessary to redesign the composite film bags and their production equipment. Summary of the invention

[0006] In order to solve the problems raised in the above-mentioned background technology, the purpose of the present invention is to provide a composite film bag and its production equipment, which have the advantage of improving the structural stability of the composite film bag, and solve the problem that the structure of the existing composite film bag is relatively simple, and the structure is mainly connected by several adhesive layers. When the structure is exposed to a high temperature environment, it is easy to separate, resulting in the wrapping and protection effect of the composite film bag being affected.

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a composite film bag and a production device thereof, comprising a base layer;

[0008] A heat-insulating structure is arranged at the bottom of the base layer, a waterproof structure is arranged at the top of the base layer, a protective structure is arranged at the top of the waterproof structure, the base layer is composed of a PET layer and a plastic layer, the waterproof structure includes a hydrophobic film and a nano film, the heat-insulating structure is composed of a reflective film and an infrared film, and the protective structure is composed of a polyester film and a wear-resistant coating.

[0009] As a preferred embodiment of the present invention, the plastic layer is hot-melt connected to the top of the PET layer, the reflective film is hot-melt connected to the bottom of the PET layer, the infrared film is hot-melt connected to the bottom of the reflective film, the nano film is hot-melt connected to the top of the plastic layer, the hydrophobic film is hot-melt connected to the top of the nano film, the polyester film is hot-melt connected to the top of the hydrophobic film, and the wear-resistant coating is coated on the surface of the polyester film.

[0010] A composite film bag and its production equipment, comprising a cloth roll respectively wrapped with a protective structure, a base layer, a heat insulating structure and a waterproof structure, the outer surface of the cloth roll is provided with an organic body, the interior of the body is provided with a load-bearing frame, the cloth roll is mounted on the surface of the load-bearing frame, the protective structure, base layer, heat insulating structure and waterproof structure extend to the top of the body away from the cloth roll, the top of the body is provided with a supporting structure, the top of the body is provided with a transmission structure located inside the supporting structure, the supporting structure comprises a connecting frame fixedly connected to the top of the body, a transmission rod is movably connected inside the connecting frame, both ends of the transmission rod extend to the interior of the connecting frame and are movably connected to the connecting frame through bearings, a screw sleeve is sleeved on the left and right sides of the surface of the transmission rod, the surface of the screw sleeve is movably connected with a crank through a pin shaft, the side of the crank away from the screw sleeve is movably connected with a connecting plate through a pin shaft, the bottom of the connecting plate is fixedly connected with a lifting rod, the lifting rod is located at the bottom of the composite film bag, and the outer surface of the lifting rod contacts the surface of the composite film bag.

[0011] As a preferred embodiment of the present invention, the transmission structure includes a transmission motor fixedly connected to the left side of the connecting frame, the output end of the transmission motor passes through the connecting frame and extends to the interior of the connecting frame, the transmission rod is threadedly connected to the screw sleeve, the screw sleeve can move toward each other, and the left end of the transmission rod is fixedly connected to the output end of the transmission motor.

[0012] As a preferred embodiment of the present invention, a guide rod is fixedly connected to the interior of the connection frame, the guide rod is located on the top of the transmission rod, the screw sleeve is sleeved on the surface of the guide rod, and the guide rod and the screw sleeve are slidably connected.

[0013] As a preferred embodiment of the present invention, support rollers are fixedly connected to the interior of the machine body, the number of the support rollers is several, and the protective structure, base layer, heat insulation structure and waterproof structure are all hung on the surface of the support rollers.

[0014] As a preferred embodiment of the present invention, a sleeve is sleeved on the surface of the lifting rod, and the sleeve can roll on the surface of the lifting rod, and the outer surface of the sleeve is in contact with the surface of the composite film bag.

[0015] As a preferred embodiment of the present invention, a carrying plate is fixedly connected to the interior of the machine body, the carrying plate is located at the bottom of the composite film bag, and a cooling fan is fixedly connected to the surface of the carrying plate.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. The present invention can improve the structural strength and functionality of the base layer by firstly arranging a heat insulation structure, a waterproof structure and a protective structure on the surface of the base layer, thereby increasing the scope of application of the composite film bag and meeting the use requirements of different environments. The present invention can improve the structural functionality of the existing composite film bag, replace the method of connecting the structure through several adhesive layers, prevent the structure from separating when exposed to a high temperature environment, and avoid affecting the wrapping and protective effect of the composite film bag.

[0018] 2. The present invention connects the structure of the composite film bag by hot melting, which can improve the stability of the structural connection and prevent the structure from separating.

[0019] 3. The present invention arranges cloth rolls wrapped with a base layer, a heat insulation structure, a waterproof structure and a protective structure on the surface of a carrier frame respectively, and then pulls the base layer, the heat insulation structure, the waterproof structure and the protective structure away from the cloth roll to the top of the machine body through support rollers and overlaps them, and then pushes the screw sleeves to move toward each other. During the movement of the screw sleeves, the connecting plate is pulled up by the crank, and the connecting plate supports the composite film bag structure overlapped with each other by a lifting rod, thereby improving the tensioning effect of the composite film bag, facilitating the perfect fitting of the structure, preventing gaps between the structures, and improving the production effect of the composite film bag.

[0020] 4. The present invention starts the transmission motor, which drives the transmission rod to rotate. The transmission rod uses the thread to push the screw sleeves to move toward each other, and can simultaneously push the two screw sleeves to move toward each other, so that the moving distance of the two screw sleeves can be kept consistent.

[0021] 5. The present invention can limit the screw sleeve by setting a guide rod, thereby preventing the screw sleeve from tilting during movement.

[0022] 6. The present invention can support the composite cloth bag by providing support rollers, and can effectively control the traction angle of the composite cloth bag.

[0023] 7. The present invention can protect the lifting rod by providing a sleeve, thereby reducing the wear and tear between the lifting rod and the composite film bag during contact and friction.

[0024] 8. The present invention can cool the composite film bag by providing a bearing plate and a heat dissipation fan, thereby preventing the composite film bag from being excessively melted during the hot-melt connection process. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the structure of the present invention;

[0026] Figure 2 This is a schematic diagram of the structure of the composite film bag of the present invention;

[0027] Figure 3 It is a schematic diagram of the structure of the machine body of the present invention;

[0028] Figure 4 It is a schematic cross-sectional view of the machine body structure of the present invention;

[0029] Figure 5 It is a schematic diagram of the transmission structure of the present invention;

[0030] Figure 6 For the present invention Figure 4 Enlarged structural diagram at A in the middle.

[0031] In the figure: 1. base layer; 2. heat insulation structure; 3. waterproof structure; 4. protective structure; 5. PET layer; 6. plastic layer; 7. hydrophobic film; 8. nano film; 9. reflective film; 10. infrared film; 11. polyester film; 12. wear-resistant coating; 13. cloth roll; 14. body; 15. carrier frame; 16. supporting structure; 17. transmission structure; 18. connecting frame; 19. transmission rod; 20. screw sleeve; 21. crank; 22. connecting plate; 23. lifting rod; 24. transmission motor; 25. guide rod; 26. support roller; 27. casing; 28. bearing plate; 29. ​​cooling fan. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] like Figures 1 to 6 As shown, the present invention provides a composite film bag and a production device thereof, comprising a base layer 1;

[0034] A heat-insulating structure 2 is arranged at the bottom of the base layer 1, a waterproof structure 3 is arranged at the top of the base layer 1, and a protective structure 4 is arranged at the top of the waterproof structure 3. The base layer 1 is composed of a PET layer 5 and a plastic layer 6, the waterproof structure 3 includes a hydrophobic film 7 and a nano film 8, the heat-insulating structure 2 is composed of a reflective film 9 and an infrared film 10, and the protective structure 4 is composed of a polyester film 11 and a wear-resistant coating 12.

[0035] refer to Figure 2 The plastic layer 6 is hot-melt connected to the top of the PET layer 5, the reflective film 9 is hot-melt connected to the bottom of the PET layer 5, the infrared film 10 is hot-melt connected to the bottom of the reflective film 9, the nano film 8 is hot-melt connected to the top of the plastic layer 6, the hydrophobic film 7 is hot-melt connected to the top of the nano film 8, the polyester film 11 is hot-melt connected to the top of the hydrophobic film 7, and the wear-resistant coating 12 is coated on the surface of the polyester film 11.

[0036] As a technical optimization solution of the present invention, connecting the structure of the composite film bag by hot melting can improve the stability of the structural connection and prevent the structure from separating.

[0037] refer to Figure 4A composite film bag and its production equipment, comprising a cloth roll 13 respectively wrapped with a protective structure 4, a base layer 1, a heat insulating structure 2 and a waterproof structure 3, an outer surface of the cloth roll 13 is provided with an organic body 14, an interior of the organic body 14 is provided with a carrier frame 15, the cloth roll 13 is mounted on the surface of the carrier frame 15, the protective structure 4, the base layer 1, the heat insulating structure 2 and the waterproof structure 3 extend from one side of the cloth roll 13 to the top of the organic body 14, a supporting structure 16 is provided on the top of the organic body 14, a transmission structure 17 located inside the supporting structure 16 is provided on the top of the organic body 14, and the supporting structure 16 includes a fixed connection A connecting frame 18 is at the top of the machine body 14, and a transmission rod 19 is movably connected inside the connecting frame 18. Both ends of the transmission rod 19 extend into the interior of the connecting frame 18 and are movably connected to the connecting frame 18 through bearings. Screw sleeves 20 are sleeved on the left and right sides of the surface of the transmission rod 19. A crank 21 is movably connected to the surface of the screw sleeve 20 through a pin. A connecting plate 22 is movably connected to the side of the crank 21 away from the screw sleeve 20 through a pin. A lifting rod 23 is fixedly connected to the bottom of the connecting plate 22. The lifting rod 23 is located at the bottom of the composite film bag, and the outer surface of the lifting rod 23 contacts the surface of the composite film bag.

[0038] As a technical optimization scheme of the present invention, the cloth roll 13 wrapped with the base layer 1, the heat insulation structure 2, the waterproof structure 3 and the protective structure 4 are respectively sleeved on the surface of the carrier frame 15, and then the base layer 1, the heat insulation structure 2, the waterproof structure 3 and the protective structure 4 are pulled to the top of the machine body 14 through the support roller 26 away from the side of the cloth roll 13 and overlapped with each other, and then the screw sleeve 20 is pushed to move toward each other. During the movement of the screw sleeve 20, the connecting plate 22 is pulled up by the crank 21, and the connecting plate 22 uses the lifting rod 23 to support the composite film bag structure stacked on each other, thereby improving the tensioning effect of the composite film bag, facilitating the perfect fitting of the structure, preventing gaps between the structures, and improving the production effect of the composite film bag.

[0039] refer to Figure 4 The transmission structure 17 includes a transmission motor 24 fixedly connected to the left side of the connection frame 18. The output end of the transmission motor 24 passes through the connection frame 18 and extends to the inside of the connection frame 18. The transmission rod 19 is threadedly connected to the screw sleeve 20. The screw sleeve 20 can move toward each other. The left end of the transmission rod 19 is fixedly connected to the output end of the transmission motor 24.

[0040] As a technical optimization solution of the present invention, by starting the transmission motor 24, the transmission motor 24 drives the transmission rod 19 to rotate, and the transmission rod 19 uses the thread to push the screw sleeves 20 to move toward each other, which can push the two screw sleeves 20 to move toward each other at the same time, so that the moving distance of the two screw sleeves 20 can be kept consistent.

[0041] refer to Figure 4A guide rod 25 is fixedly connected to the interior of the connecting frame 18 . The guide rod 25 is located at the top of the transmission rod 19 . The screw sleeve 20 is sleeved on the surface of the guide rod 25 . The guide rod 25 and the screw sleeve 20 are slidably connected.

[0042] As a technical optimization solution of the present invention, by providing a guide rod 25, the screw sleeve 20 can be limited to avoid the screw sleeve 20 from tilting during the movement.

[0043] refer to Figure 4 A supporting roller 26 is fixedly connected to the interior of the machine body 14 . The number of the supporting rollers 26 is several. The protective structure 4 , the base layer 1 , the heat insulation structure 2 and the waterproof structure 3 are all hung on the surface of the supporting rollers 26 .

[0044] As a technical optimization solution of the present invention, by providing a support roller 26, the composite cloth bag can be supported and the traction angle of the composite cloth bag can be effectively controlled.

[0045] refer to Figure 4 A sleeve 27 is sleeved on the surface of the lifting rod 23 . The sleeve 27 can roll on the surface of the lifting rod 23 , and the outer surface of the sleeve 27 contacts the surface of the composite film bag.

[0046] As a technical optimization solution of the present invention, by providing the sleeve 27, the lifting rod 23 can be protected, thereby reducing the wear of the lifting rod 23 and the composite film bag during contact and friction.

[0047] refer to Figure 4 A carrying plate 28 is fixedly connected to the interior of the machine body 14 . The carrying plate 28 is located at the bottom of the composite film bag. A cooling fan 29 is fixedly connected to the surface of the carrying plate 28 .

[0048] As a technical optimization solution of the present invention, by providing a carrier plate 28 and a heat dissipation fan 29, the composite film bag can be cooled to avoid excessive melting of the composite film bag during the hot melt connection process.

[0049] The working principle and use process of the present invention are as follows: when in use, firstly, by arranging the heat insulation structure 2, the waterproof structure 3 and the protective structure 4 on the surface of the base layer 1, the structural strength and structural functionality of the base layer 1 can be improved, and the application scope of the composite film bag can be improved. In the production process of the composite film bag, firstly, the cloth roll 13 wrapped with the base layer 1, the heat insulation structure 2, the waterproof structure 3 and the protective structure 4 are respectively sleeved on the surface of the carrier frame 15, and then the base layer 1, the heat insulation structure 2, the waterproof structure 3 and the protective structure 4 are pulled to the top of the machine body 14 through the support roller 26 away from the side of the cloth roll 13 and overlapped with each other, and then the user starts the transmission motor 24, and the transmission motor 24 drives the transmission rod 19 to rotate, and the transmission rod 19 uses the thread to push the screw sleeve 20 to move toward each other. During the movement of the screw sleeve 20, the crank 21 pulls the connecting plate 22 up, and the connecting plate 22 uses the lifting rod 23 to support the composite film bag structure overlapped with each other, thereby improving the tensioning effect of the composite film bag and facilitating the perfect fitting of the structure.

[0050] To sum up: the composite film bag and its production equipment, by arranging the insulation structure 2, the waterproof structure 3 and the protective structure 4 on the surface of the base layer 1, can improve the structural strength and structural functionality of the base layer 1, improve the application scope of the composite film bag, and meet the use requirements of different environments. The present invention can improve the structural functionality of the existing composite film bag, replace the method of connecting the structure through several adhesive layers, prevent the structure from separating when exposed to a high temperature environment, and avoid affecting the wrapping and protective effect of the composite film bag.

[0051] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0052] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A composite film bag production equipment, characterized in that: The composite film bag comprises a base layer (1), a heat insulating structure (2) is arranged at the bottom of the base layer (1), a waterproof structure (3) is arranged at the top of the base layer (1), a protective structure (4) is arranged at the top of the waterproof structure (3), the base layer (1) is composed of a PET layer (5) and a plastic layer (6), the waterproof structure (3) comprises a hydrophobic film (7) and a nano film (8), the heat insulating structure (2) is composed of a reflective film (9) and an infrared film (10), and the protective structure (4) is composed of a polyester film (11) and a wear-resistant The coating (12) is composed of: the plastic layer (6) is hot-melt-connected to the top of the PET layer (5), the reflective film (9) is hot-melt-connected to the bottom of the PET layer (5), the infrared film (10) is hot-melt-connected to the bottom of the reflective film (9), the nano film (8) is hot-melt-connected to the top of the plastic layer (6), the hydrophobic film (7) is hot-melt-connected to the top of the nano film (8), the polyester film (11) is hot-melt-connected to the top of the hydrophobic film (7), and the wear-resistant coating (12) is coated on the surface of the polyester film (11); The production equipment comprises a cloth roll (13) respectively wound with a protective structure (4), a base layer (1), a heat insulating structure (2) and a waterproof structure (3); a body (14) is arranged on the outer surface of the cloth roll (13); a support frame (15) is arranged inside the body (14); the cloth roll (13) is mounted on the surface of the support frame (15); the protective structure (4), the base layer (1), the heat insulating structure (2) and the waterproof structure (3) extend from a side of the cloth roll (13) to the top of the body (14); a support structure (16) is arranged on the top of the body (14); a transmission structure (17) located inside the support structure (16) is arranged on the top of the body (14); the support structure (16) comprises a fixed connection A connecting frame (18) is provided at the top of the machine body (14), wherein a transmission rod (19) is movably connected to the interior of the connecting frame (18), both ends of the transmission rod (19) extend into the interior of the connecting frame (18) and are movably connected to the connecting frame (18) through bearings, a screw sleeve (20) is sleeved on the left and right sides of the surface of the transmission rod (19), a crank (21) is movably connected to the surface of the screw sleeve (20) through a pin, a side of the crank (21) away from the screw sleeve (20) is movably connected to a connecting plate (22) through a pin, a lifting rod (23) is fixedly connected to the bottom of the connecting plate (22), the lifting rod (23) is located at the bottom of the composite film bag, and the outer surface of the lifting rod (23) is in contact with the surface of the composite film bag; The transmission structure (17) comprises a transmission motor (24) fixedly connected to the left side of the connection frame (18), the output end of the transmission motor (24) passes through the connection frame (18) and extends to the inside of the connection frame (18), the transmission rod (19) is threadedly connected to the screw sleeve (20), the screw sleeve (20) can move towards each other, and the left end of the transmission rod (19) is fixedly connected to the output end of the transmission motor (24); A guide rod (25) is fixedly connected inside the connection frame (18), the guide rod (25) is located on the top of the transmission rod (19), the screw sleeve (20) is sleeved on the surface of the guide rod (25), and the guide rod (25) and the screw sleeve (20) are slidably connected.

2. The composite film bag production equipment according to claim 1, characterized in that: The interior of the machine body (14) is fixedly connected with a supporting roller (26), the number of the supporting rollers (26) is several, and the protective structure (4), the base layer (1), the heat insulation structure (2) and the waterproof structure (3) are all hung on the surface of the supporting roller (26).

3. The composite film bag production equipment according to claim 2, characterized in that: The surface of the lifting rod (23) is sleeved with a sleeve (27), and the sleeve (27) can roll on the surface of the lifting rod (23), and the outer surface of the sleeve (27) is in contact with the surface of the composite film bag.

4. The composite film bag production equipment according to claim 3, characterized in that: A carrying plate (28) is fixedly connected to the interior of the machine body (14), the carrying plate (28) is located at the bottom of the composite film bag, and a heat dissipation fan (29) is fixedly connected to the surface of the carrying plate (28).

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