Composite film of hygienic product packaging bag and film spraying production line of composite film

Abstract

The invention discloses a composite film of a hygienic product packaging bag and a film spraying production line of the composite film, and particularly relates to the technical field of composite film spraying, the composite film comprises a packaging bag bottom film base material, a printing layer is sprayed on the packaging bag bottom film base material, the top of the printing layer is compounded with an isolating film, and the top of the isolating film is compounded with a wear-resistant protective film; the wear-resistant and sun-proof packaging bag for the hygienic products is obtained through a multi-layer laminating composite structure, so that the hygienic products in the packaging bag for the hygienic products are fully protected and prevented from being damaged and polluted, a film base roll can be limited, the size of an extrusion opening of a laminating machine can be synchronously adjusted, and the production efficiency is improved. By means of the structure, the size of an opening of the laminating machine is the same as the width of a film base roll all the time and is flush with the width of the film base roll, residual solid films at an outlet of the laminating machine can be automatically scraped, the scraped solid films are collected, sanitation of the production environment is guaranteed, and normal proceeding of next-time production work is guaranteed.

Description

Technical Field

[0001] The present application relates to the technical field of composite film lamination, and more specifically, to a composite film for sanitary product packaging bags and a lamination production line thereof. Background Art

[0002] Hygiene products can help users achieve the purpose of cleanliness and hygiene. Since these products are in direct contact with the human body, the sanitary condition of the products directly affects the health of the public. Therefore, the outer packaging bag plays an important role in its sanitary condition during transportation and sales. In order to meet the functionality of packaging bags, most packaging bags use composite films, and to ensure the uniformity of the packaging bag coating, the laminating process is now mostly used for the composite film lamination work. Among them, the laminating process is a technology that evenly coats liquid polymers on the surface of the substrate to form a thin film.

[0003] After searching, the existing patent (publication number: CN221112574U) discloses a laminating device and an EVA film production line, which are equipped with a first unwinding device, a corona device, a laminating device, a second unwinding device, a pressing device and a winding device in sequence. The laminating device includes a laminating support, and a conveyor belt assembly is provided on the laminating support. The conveyor belt assembly includes conveyor rollers and a conveyor belt in contact with each of the conveyor rollers. The conveyor belt is used to convey the base film. An extrusion mechanism is provided above the conveyor belt, and the extrusion mechanism is used to coat the molten material on the base film moving with the conveyor belt. By performing the laminating process on the base film located on the conveyor belt, the molten material can be evenly and evenly coated on the base film, ensuring that the EVA film produced by the laminating process production line has a high degree of flatness. In the process of realizing this application, the inventor found that the existing technology has the following problems: The laminating machine in the existing laminating production line cannot adjust the size of the film outlet. Due to the differences in the size of the film base produced in different batches, and when the size of the film base is larger than the outlet size of the laminating machine, the excess part needs to be cut off after the lamination is completed, which will cause waste of the packaging bag film base: Moreover, when the size of the film base is smaller than the outlet size of the laminating machine, the excess composite film will fall onto the cold pressing roller and may stick to the production machine during the cold pressing process, which will not only affect the production of composite film packaging bags, but is more likely to cause damage to the production machine due to the sticky composite film.

[0004] Moreover, the laminating machine of the existing laminating production line needs manual cleaning of the film outlet, and when manually using a scraper to scrape off the residual solid film lumps, the film outlet is easily damaged due to the scraping action of the scraper, and there may also be areas that are not scraped clean due to omissions, which may cause the film outlet to be blocked by solid film, thereby affecting the subsequent laminating work.

[0005] Therefore, in view of the above problems, a composite film for a sanitary product packaging bag and a laminating production line thereof are proposed. Summary of the Invention

[0006] In order to overcome the above-mentioned defects of the prior art, the present application provides a composite film for sanitary product packaging bags and a laminating production line thereof to solve the problems raised in the above-mentioned background technology.

[0007] To achieve the above-mentioned purpose, the present application provides the following technical solution: a composite film for a sanitary product packaging bag, comprising a packaging bag bottom film substrate, a printing layer sprayed on top of the packaging bag bottom film substrate, and an isolation film composited on the top of the printing layer, and a wear-resistant protective film composited on the top of the isolation film.

[0008] A laminating production line for composite films of sanitary product packaging bags, comprising an inlet box, a primary laminating box, a secondary laminating box, and an outlet winding device. A base film unwinding roller is provided on one side of the inlet box, and the primary laminating box is provided on the side of the inlet box away from the base film unwinding roller. A corona treatment box and a tension adjustment box are provided in sequence on the side of the secondary laminating box away from the primary laminating box, and the outlet winding device is connected to the side of the tension adjustment box away from the corona treatment box. Among them, a transmission box connecting box is provided on both sides of the primary laminating box and the secondary laminating box, a feeding pipe is connected to one side of the transmission box connecting box, and a laminating extrusion port is provided at the bottom of the primary laminating box and the secondary laminating box, and a cold pressing roller group is provided below the laminating extrusion port.

[0009] Preferably, two groups of unwinding roller connecting frames are connected to the side of the inlet box away from the initial laminating box, the inner sides of the two groups of unwinding roller connecting frames are connected to connecting sleeves, the outer sides of the connecting sleeves are slidably connected to the film roll limiting clamps, and a roller connecting shaft is inserted between the two groups of connecting sleeves through a bearing block, and the bottom film unwinding roller is sleeved on the outer side of the roller connecting shaft.

[0010] Preferably, the outer side of the unwinding roller connecting frame is connected to a transmission drive box, one end of the transmission drive box is connected to the transmission box connecting box, the outer side of the transmission drive box is connected to an adjusting drive motor, and the outer side of the output shaft of the adjusting drive motor is connected to a driving wheel through a shaft key, one side of the driving wheel is connected to an adjusting screw, and the outer side of the adjusting screw is connected to a transmission slider, and the film roll limiting clamp is connected to the outer side of the transmission slider.

[0011] Preferably, an adjustment equipment box is connected between the primary laminating box and the transmission box connecting box, and between the secondary laminating box and the transmission box connecting box. A connecting material box is provided in the primary laminating box and the secondary laminating box, and one end of the feeding pipe is connected to the connecting material box. An adjustment drive assembly is provided in the transmission box connecting box and the adjustment equipment box, and an opening adjustment assembly is provided in the laminating extrusion port.

[0012] Preferably, the adjustment drive assembly includes a driving telescopic rod assembly and a closed chain, a driving box is provided at the bottom of one end of the driving telescopic rod assembly, and a driving shaft is connected to the driving box, and a transfer transmission shaft is connected to the transmission box connecting box, the transfer transmission shaft and the adjacent transfer transmission shaft and the driving pulley are connected by a belt, and one end of the transfer transmission shaft is connected to the driving shaft by a belt.

[0013] Preferably, one end of the telescopic shaft of the driving telescopic rod assembly is connected to an adjusting connecting block, the bottom of the end of the adjusting connecting block away from the driving telescopic rod assembly is connected to a material guide baffle, and one end of the material guide baffle extends to the bottom end of the laminating extrusion outlet, the closed chain is connected to the top of the adjusting connecting block, one end of the closed chain is fixedly connected to the adjusting equipment box, and the inner side of the closed chain is connected to a sealing soft board, and one side of the sealing soft board is fitted to the bottom of the connecting material box.

[0014] Preferably, the bottom of the adjusting connecting block is connected to an adjusting driving slider, one side of the adjusting driving slider is connected to an eight-shaped outlet scraper, the outlet scraper is attached to the inner wall of the bottom opening of the laminating extrusion outlet, and a waste collection box is provided below the outlet scraper, the bottom of the adjusting driving slider is connected to a scraper block, and the inner opening of the scraper block is the same size as the outlet scraper.

[0015] Preferably, two groups of gear connecting blocks are connected to one side of the adjusting connecting block, and a lifting drive gear is connected between the two groups of gear connecting blocks through a rotating shaft, the inner wall of the adjusting equipment box is connected to a cleaning gear plate that meshes with the lifting drive gear, a fixed nut seat is provided in the adjusting drive slider, and the outer side of the fixed nut seat is sleeved with a transmission gear ring that meshes with the lifting drive gear, the lifting threaded rod is connected to the inner thread of the fixed nut seat, and the scraper block is connected to the bottom end of the lifting threaded rod.

[0016] Preferably, a forming drying box is provided between the primary laminating box and the secondary laminating box, and between the secondary laminating box and the corona treatment box, two sets of connecting side panels are connected between the corona treatment box and the tension adjustment box, and multiple sets of guide rollers are provided in the inlet box, primary laminating box, forming drying box, secondary laminating box, corona treatment box and tension adjustment box.

[0017] The technical effects and advantages of this application are: 1. Compared with the existing technology, the composite film of the sanitary product packaging bag and the laminating production line thereof, through the multi-layer laminating composite structure, obtain a wear-resistant and sun-resistant sanitary product packaging bag, so that the sanitary products inside the sanitary product packaging bag are fully protected to avoid damage and pollution. The base material of the bottom film of the packaging bag is a film material of PE material, and a printing layer is printed on the top of the base material of the bottom film of the packaging bag before laminating production. The isolation film is made of a composite of PVC, PET, EVA and other materials, and contains UV absorber and explosion-proof layer to prevent light from causing damage to the base material of the bottom film of the packaging bag and the sanitary products inside the packaging bag. The wear-resistant protective film is the outermost protective film material of the entire packaging bag, and the wear-resistant protective film is a composite film material of PE and PVC, which has the characteristics of wear resistance.

[0018] 2. Compared with the existing technology, the composite film of the sanitary product packaging bag and its laminating production line can limit the film base roll and can also synchronously adjust the extrusion opening size of the laminating machine, so that the opening size of the laminating machine is always the same as the width of the film base roll and is flush with it, avoiding waste caused by the excessive size of the film base, saving film base material, and also avoiding contamination of the machine due to the small size of the film base.

[0019] 3. Compared with the existing technology, the composite film of the sanitary product packaging bag and its laminating production line can automatically scrape off the residual solid film at the outlet of the laminating machine and collect the scraped solid film, thereby ensuring the hygiene of the production environment and the normal progress of the next production work. The outlet scraper scrapes off the solid film material remaining at the opening of the laminating extrusion port during the movement, and the figure-eight structure of the outlet scraper can ensure that the scraped fixed film moves toward the inside of the outlet scraper, thereby preventing the scraped solid film lumps from falling into the machine, and the solid film lumps adhering to the outlet scraper can be scraped off by the scraper block, and the scraped solid film lumps fall into the waste collection box for collection.

[0020] 4. Compared with the existing technology, the composite film of the sanitary product packaging bag and its laminating production line can synchronously adjust the film roll limiting clamp and the primary laminating box and the secondary laminating box through the linked mechanical structure, so that the opening size of the primary laminating box and the secondary laminating box is always the same as the bottom film unwinding roller, and the position is also flush. Through the set mechanical structure, the scraper block can automatically scrape off the solid film lumps on the outlet scraper, ensuring the continuity of the production line and reducing the uncertainty of manual intervention. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic structural diagram of the composite film of the sanitary product packaging bag of this application; Figure 2This is a structural diagram of the left side of the laminating production line of this application; Figure 3 This is a structural diagram on the right side of the laminating production line of this application; Figure 4 This is a structural diagram of the unwinding roller connecting frame of the present application; Figure 5 This is a schematic structural diagram of the roller connecting shaft of the present application; Figure 6 This is a structural diagram of the adjustment drive motor of this application; Figure 7 This is a structural diagram of the initial laminating box of this application; Figure 8 This is a schematic structural diagram of the cross section of the initial laminating box of this application; Figure 9 This is a structural diagram of the adjustment drive assembly of the present application; Figure 10 This is a structural diagram of the opening adjustment component of the present application; Figure 11 This is a structural schematic diagram of the connection structure at the lifting threaded rod of this application.

[0022] The accompanying drawings are marked as follows: 1. Base film of packaging bag; 11. Printing layer; 12. Isolation film; 13. Wear-resistant protective film; 2. Inlet box; 21. Unwinding roller connecting frame; 22. Unwinding roller of bottom film; 23. Transmission drive box; 231. Adjustment drive motor; 232. Driving wheel; 233. Adjustment screw; 234. Transmission slider; 24. Connecting sleeve; 25. Film roll limiting clamp; 26. Roller connecting shaft; 27. Guide roller; 3. Initial laminating box; 31. Transmission box connecting box; 311. Feeding pipe; 312. Transfer transmission shaft; 32. Laminating extrusion port; 33. Adjustment equipment box; 331. Cleaning gear plate; 34. Adjustment drive assembly; 341. Drive extension Retraction rod assembly; 3411, drive box; 3412, drive shaft; 342, adjustment connection block; 3421, material guide baffle; 343, closing chain; 344, sealing soft board; 35, opening adjustment assembly; 351, adjustment drive slider; 352, scraper block; 353, outlet scraper; 354, waste collection box; 355, gear connection block; 356, lifting drive gear; 357, fixing nut seat; 358, transmission gear ring; 359, lifting threaded rod; 36, connecting material box; 34, forming drying box; 5, secondary laminating box; 6, outlet winding equipment; 7, corona treatment box; 71, connecting side plate; 8, cold press roller group; 9, tension adjustment box. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0024] As attached Figures 1 to 11 The composite film of a sanitary product packaging bag shown includes a packaging bag bottom film substrate 1, a printing layer 11 is sprayed on the top of the packaging bag bottom film substrate 1, and an isolation film 12 is compounded on the top of the printing layer 11, and a wear-resistant protective film 13 is compounded on the top of the isolation film 12; the packaging bag bottom film substrate 1 is the main body of the packaging bag, and the packaging bag bottom film substrate 1 is a film material of PE material, and the printing layer 11 is printed on the top of the packaging bag bottom film substrate 1 before lamination production, and the isolation film 12 is made of a composite of PVC, PET, EVA and other materials, and contains a UV absorber and an explosion-proof layer to prevent light from causing damage to the packaging bag bottom film substrate 1 and the sanitary products inside the packaging bag, and the wear-resistant protective film 13 is the outermost protective film material of the entire packaging bag, and the wear-resistant protective film 13 is a composite film material of PE and PVC, which has the characteristics of wear resistance.

[0025] As attached Figures 2 to 11 The composite film laminating production line for sanitary product packaging bags shown in the figure includes an inlet box 2, a primary laminating box 3, a secondary laminating box 5, and an outlet winding device 6. A base film unwinding roller 22 is provided on one side of the inlet box 2, and the primary laminating box 3 is provided on the side of the inlet box 2 away from the base film unwinding roller 22. A corona treatment box 7 and a tension adjustment box 9 are provided in sequence on the side of the secondary laminating box 5 away from the primary laminating box 3, and the outlet winding device 6 is connected to the side of the tension adjustment box 9 away from the corona treatment box 7. Among them, both sides of the primary laminating box 3 and the secondary laminating box 5 are provided with a transmission box connection box 31, one side of the transmission box connection box 31 is connected to a feeding pipe 311, and the bottom of the primary laminating box 3 and the secondary laminating box 5 are provided with a laminating extrusion port 32, and a cold pressing roller group 8 is provided below the laminating extrusion port 32; one end of the feeding pipe 311 is connected to the extruder, and the extruder is a common equipment in this field, which melts the solid material into a liquid material by heating, which will not be described in detail here, and the heated material is fed into the primary laminating box 3 or the secondary laminating box 5 by the feeding pipe 311, and the packaging bag bottom film substrate 1 printed with the printing layer 11 enters the inlet box 2 It enters the laminating production line and undergoes the primary laminating work in the primary laminating box 3. An isolation film 12 is coated on the printing layer 11, and the cold pressing roller group 8 composites the packaging bag bottom film substrate 1 and the printing layer 11 and the isolation film 12. Then, the secondary laminating work is performed at the secondary laminating box 5. A wear-resistant protective film 13 is coated on the isolation film 12, and the cold pressing roller group 8 composites the isolation film 12 and the wear-resistant protective film 13. After the laminating work is completed, the corona treatment box 7 eliminates static electricity on the surface of the packaging bag film material, and the tension of the packaging bag film material is adjusted by the tension adjusting box 9. The packaging bag film material with tension adjustment is wound onto the exit winding device 6.

[0026] As a preferred embodiment, two groups of unwinding roller connecting frames 21 are connected to the side of the inlet box 2 away from the initial laminating box 3, and the inner sides of the two groups of unwinding roller connecting frames 21 are connected with connecting sleeves 24, and the outer sides of the connecting sleeves 24 are slidably connected with a film roll limiting clamp 25, and a roller connecting shaft 26 is inserted between the two groups of connecting sleeves 24 through a bearing block, and the bottom film unwinding roller 22 is sleeved on the outer side of the roller connecting shaft 26; the packaging bag bottom film substrate 1 printed with the printing layer 11 is connected to the bottom film unwinding roller 22, and the bottom film unwinding roller 22 rolled with the packaging bag bottom film substrate 1 is sleeved on the roller connecting shaft 26, and the roller connecting shaft 26 is inserted into the two groups of connecting sleeves 24 through the bearing block, and the connecting sleeve 24 is connected to the unwinding roller connecting frame 21, and the film roll limiting clamp 25 can slide and move on the connecting sleeve 24, and the position of the bottom film unwinding roller 22 can be limited by the film roll limiting clamp 25.

[0027] As a preferred embodiment, the outside of the unwinding roller connecting frame 21 is connected to the transmission drive box 23, one end of the transmission drive box 23 is connected to the transmission box connecting box 31, the outside of the transmission drive box 23 is connected to the adjusting drive motor 231, and the outside of the output shaft of the adjusting drive motor 231 is sleeved with a driving wheel 232 through a shaft key, one side of the driving wheel 232 is connected to an adjusting screw rod 233, and the outside of the adjusting screw rod 233 is sleeved with a transmission slider 234, and the film roll limiting clamp 25 is connected to the outside of the transmission slider 234; the driving wheel 232 and the adjusting screw rod 233 connected thereto are driven to rotate by the adjusting drive motor 231, and the adjusting screw rod 233 drives the transmission slider 234 and the film roll limiting clamp 25 connected thereto to move during the rotation, and the two sets of film roll limiting clamps 25 are attached to the two ends of the bottom film unwinding roller 22 during the movement, thereby limiting the bottom film unwinding roller 22.

[0028] As a preferred embodiment, an adjustment device box 33 is connected between the primary laminating box 3 and the transmission box connecting box 31, as well as between the secondary laminating box 5 and the transmission box connecting box 31. A connecting material box 36 is provided in the primary laminating box 3 and the secondary laminating box 5, and one end of the feeding pipe 311 is connected to the connecting material box 36. An adjustment drive component 34 is provided in the transmission box connecting box 31 and the adjustment device box 33, and an opening adjustment component 35 is provided in the laminating extrusion port 32; the material heated and melted by the extruder is fed into the connecting material box 36 through the feeding pipe 311, and the fused liquid material enters the laminating extrusion port 32 from the connecting material box 36, and is extruded into a film from the laminating extrusion port 32, and the opening size of the laminating extrusion port 32 is adjusted by the adjustment drive component 34 driving the opening adjustment component 35.

[0029] As a preferred embodiment, the adjustment drive assembly 34 includes a driving telescopic rod assembly 341 and a closed chain 343. A driving box 3411 is provided at the bottom of one end of the driving telescopic rod assembly 341, and a driving shaft 3412 is connected to the driving box 3411. A transfer transmission shaft 312 is connected to the transmission box connection box 31. The transfer transmission shaft 312 and its adjacent transfer transmission shaft 312 and the driving wheel 232 are connected by a belt, and one end of the transfer transmission shaft 312 is connected to the driving shaft 3412 by a belt. The driving telescopic rod assembly 341 is a common electric telescopic rod structure, and the driving box 3411 and the driving shaft 3412 can be regarded as the driving motor of the electric telescopic rod, and the driving telescopic rod is the same as the driving motor of the electric telescopic rod. The specific structure and operating principle of the retraction rod assembly 341 can refer to the electric push rod model YLK11. The driving wheel 232 drives the transfer transmission shaft 312 to rotate through a belt, and the transfer transmission shaft 312 drives another set of transfer transmission shafts 312 to rotate through a belt, and the transfer transmission shaft 312 drives the driving shaft 3412 to rotate through a belt, so that the film roll limiting clamp 25 and the two sets of adjustment drive components 34 can be driven and adjusted synchronously, thereby completing the synchronous adjustment of the film roll limiting clamp 25 and the primary laminating box 3 and the secondary laminating box 5, so that the opening size of the primary laminating box 3 and the secondary laminating box 5 is always the same as the bottom film unwinding roller 22, and the position is also flush.

[0030] As a preferred embodiment, one end of the telescopic shaft of the driving telescopic rod assembly 341 is connected to an adjusting connecting block 342, and the bottom of the adjusting connecting block 342 away from the driving telescopic rod assembly 341 is connected to a material guide baffle 3421, and one end of the material guide baffle 3421 extends to the bottom end of the film extrusion outlet 32, and the closing chain 343 is connected to the top of the adjusting connecting block 342, one end of the closing chain 343 is fixedly connected to the adjusting device box 33, and the inner side of the closing chain 343 is connected to a sealing soft plate 344, and one side of the sealing soft plate 344 is attached to the bottom of the connecting material box 36; the driving telescopic rod assembly 341 drives the adjusting connecting block 342 to extend and retract, and the adjusting connecting block 342 drives the closing chain 343 on its top to move during the extension and retraction process, and the size of the connecting material box 36 and the film extrusion outlet 32 is controlled and adjusted by the sealing soft plate 344 and the material guide baffle 3421 on the top of the closing chain 343.

[0031] As a preferred embodiment, the bottom of the adjusting connecting block 342 is connected to an adjusting driving slider 351, and one side of the adjusting driving slider 351 is connected to an eight-shaped outlet scraper 353, the outlet scraper 353 is attached to the inner wall of the bottom opening of the laminating extrusion outlet 32, and a waste collection box 354 is provided below the outlet scraper 353, the bottom of the adjusting driving slider 3511 is connected to a scraper scraping block 352, and the inner opening of the scraper scraping block 352 is the same size as the outlet scraper 353; the adjusting connecting block 342 drives the adjusting driving slider 351 to move during the movement, and is The adjustment driving slider 351 drives the outlet scraper 353 and the waste collection box 354 connected to it to move, and the outlet scraper 353 scrapes off the solid film material remaining at the opening of the lamination extrusion port 32 during the movement, and the figure eight structure of the outlet scraper 353 can ensure that the scraped fixed film moves toward the inner side of the outlet scraper 353, thereby preventing the scraped solid film lumps from falling into the machine, and the solid film lumps adhering to the outlet scraper 353 can be scraped off by the scraper block 352, and the scraped solid film lumps fall into the waste collection box 354 for collection.

[0032] As a preferred embodiment, one side of the adjustment connecting block 342 is connected to two sets of gear connecting blocks 355, and the two sets of gear connecting blocks 355 are connected to a lifting drive gear 356 through a rotating shaft. The inner wall of the adjustment device box 33 is connected to a cleaning gear plate 331 that meshes with the lifting drive gear 356. A fixed nut seat 357 is provided in the adjustment drive slider 351, and the outer side of the fixed nut seat 357 is sleeved with a transmission gear ring 358 that meshes with the lifting drive gear 356. The fixed nut seat 357 is internally threaded with a lifting threaded rod 359, and the scraper block 352 is connected to the bottom end of the lifting threaded rod 359; when the adjustment drive slider 351 moves to the adjustment position, the adjustment drive slider 351 is rotated. When the cleaning gear plate 331 of the equipment box 33 is at the cleaning position, the cleaning gear plate 331 drives the lifting drive gear 356 between the two sets of gear connecting blocks 355 to rotate, and the lifting drive gear 356 drives the transmission gear ring 358 and the fixed nut seat 357 connected to it to rotate during the rotation, and the fixed nut seat 357 drives the lifting threaded rod 359 inside it and the scraper block 352 connected to it to lift and lower during the rotation, and the scraper block 352 completes the cleaning work of the outlet scraper 353 during the lifting process, wherein the adjustment and cleaning methods of the primary laminating box 3 and the secondary laminating box 5 are the same, and the adjustment and cleaning actions are synchronized.

[0033] As a preferred embodiment, a forming drying box 4 is provided between the primary laminating box 3 and the secondary laminating box 5, as well as between the secondary laminating box 5 and the corona treatment box 7. Two sets of connecting side plates 71 are connected between the corona treatment box 7 and the tension adjustment box 9. In addition, multiple sets of guide rollers 27 are provided in the inlet box 2, the primary laminating box 3, the forming drying box 4, the secondary laminating box 5, the corona treatment box 7 and the tension adjustment box 9. The film material after the primary laminating and compounding is dried and formed in the forming drying box 4, and after drying and forming, the secondary laminating work is carried out in the secondary laminating box 5. After the secondary laminating work is completed, the film material is dried and formed in the forming drying box 4. Box 4 performs secondary drying and forming, corona treatment equipment is provided in corona treatment box 7, and electric adjustment equipment is provided in tension adjustment box 9, and each production line equipment is guided and moved by guide rollers 27 in each equipment, and the entire work process is pulled by the export winding device 6 and wound onto the export winding device 6, and the above equipment are all well-known equipment purchased directly on the market by technicians in this field, which can be customized or selected according to actual needs. Here we only use it and do not improve its structure and function, so we will not go into details here.

[0034] The working process of the present application is as follows: the packaging bag base film substrate 1 printed with the printing layer 11 is connected to the base film unwinding roller 22, and the base film unwinding roller 22 with the packaging bag base film substrate 1 rolled up is sleeved on the roller connecting shaft 26, and the roller connecting shaft 26 is inserted into two sets of connecting sleeves 24 through bearing blocks, and the connecting sleeves 24 are connected to the unwinding roller connecting frame 21. Then, one end of the packaging bag base film substrate 1 printed with the printing layer 11 is manually pulled through the guide rollers 27 of each production line equipment to be connected to the outlet winding device 6, and the outlet winding device 6 pulls the packaging bag base film substrate 1 for mobile processing; The device can be adjusted according to the width of the bottom film unwinding roller 22. The adjusting drive motor 231 drives the driving wheel 232 and the adjusting screw 233 connected thereto to rotate. The adjusting screw 233 drives the transmission slider 234 and the film roll limiting clamp 25 connected thereto to move during the rotation. The two sets of film roll limiting clamps 25 are attached to the two ends of the bottom film unwinding roller 22 during the movement, thereby limiting the bottom film unwinding roller 22. At the same time, the driving wheel 232 drives the transfer transmission shaft 312 to rotate through the belt, and the transfer transmission shaft 312 drives another set of transfer transmission shafts 312 to rotate through the belt, and the transfer transmission shaft 312 drives the driving shaft 3412 to rotate through the belt, so that the film roll limiting clamp 25 and the two sets of adjustment drive components 34 can be driven and adjusted synchronously, thereby completing the synchronous adjustment work of the film roll limiting clamp 25 and the primary laminating box 3 and the secondary laminating box 5, so that the opening size of the primary laminating box 3 and the secondary laminating box 5 is always the same as that of the bottom film unwinding roller 22, and the position is also flush; The adjusting connecting block 342 drives the closed chain 343 on its top to move during the extension and retraction process, and controls and adjusts the size of the connecting material box 36 and the laminating extrusion port 32 through the sealing soft plate 344 and the material guide baffle 3421 on the top of the closed chain 343. At the same time, the adjusting connecting block 342 drives the adjusting driving slider 351 to move during the movement, and the adjusting driving slider 351 drives the outlet scraper 353 and the waste collection box 354 connected thereto to move. The outlet scraper 353 scrapes off the solid film material remaining at the opening of the laminating extrusion port 32 during the movement, and the solid film agglomerates adhering to the outlet scraper 353 can be scraped off by the scraper block 352, and the scraped solid film agglomerates fall into the waste collection box 354 for collection. When the adjustment driving slider 351 moves to the cleaning gear plate 331 of the adjustment device box 33, the cleaning gear plate 331 drives the lifting driving gear 356 between the two sets of gear connecting blocks 355 to rotate, and the lifting driving gear 356 drives the transmission gear ring 358 and the fixed nut seat 357 connected thereto to rotate during the rotation, and the fixed nut seat 357 drives the lifting threaded rod 359 inside it and the scraper scraping block 352 connected thereto to rise and fall during the rotation, and the scraper scraping block 352 completes the cleaning work of the outlet scraper 353 during the lifting process, wherein the adjustment and cleaning methods of the primary laminating box 3 and the secondary laminating box 5 are the same, and the adjustment and cleaning actions are synchronized; The packaging bag base film substrate 1 printed with a printing layer 11 enters the laminating production line from the inlet box 2 and undergoes the primary laminating work in the primary laminating box 3. An isolation film 12 is coated on the printing layer 11, and the packaging bag base film substrate 1, the printing layer 11 and the isolation film 12 are compounded by the cold pressing roller group 8. The film material after the primary laminating and compounding is dried and formed in the forming drying box 4, and after drying and forming, a secondary laminating work is performed in the secondary laminating box 5. A wear-resistant protective film 13 is coated on the isolation film 12, and the isolation film 12 and the wear-resistant protective film 13 are compounded by the cold pressing roller group 8. After the secondary laminating work is completed, a secondary drying and forming is performed in the forming drying box 4. After the laminating work is completed, the corona treatment box 7 eliminates the static electricity on the surface of the packaging bag film material, and the tension of the packaging bag film material is adjusted by the tension adjusting box 9. The packaging bag film material with tension adjustment is wound onto the outlet winding device 6. The above is the working principle of the composite film of the sanitary product packaging bag and its laminating production line.

[0035] Finally: The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present application should be included in the scope of protection of the present application.

Claims

1. A composite film for a sanitary product packaging bag, comprising a packaging bag bottom film substrate (1), characterized in that: A printing layer (11) is sprayed on the top of the packaging bag bottom film substrate (1), and an isolation film (12) is compounded on the top of the printing layer (11), and a wear-resistant protective film (13) is compounded on the top of the isolation film (12).

2. A laminating production line for a composite film for a sanitary product packaging bag, used for producing the composite film for a sanitary product packaging bag as claimed in claim 1, characterized in that: It comprises an inlet box (2), a primary laminating box (3), a secondary laminating box (5) and an outlet winding device (6), wherein a bottom film unwinding roller (22) is provided on one side of the inlet box (2), and the primary laminating box (3) is provided on a side of the inlet box (2) away from the bottom film unwinding roller (22), and a corona treatment box (7) and a tension adjustment box (9) are provided in sequence on a side of the secondary laminating box (5) away from the primary laminating box (3), and the outlet winding device (6) is connected to a side of the tension adjustment box (9) away from the corona treatment box (7); Wherein, a transmission box connecting box (31) is provided on both sides of the primary laminating box (3) and the secondary laminating box (5), a feeding pipe (311) is connected to one side of the transmission box connecting box (31), and a laminating extrusion port (32) is provided at the bottom of the primary laminating box (3) and the secondary laminating box (5), and a cold pressing roller group (8) is provided below the laminating extrusion port (32).

3. The laminating production line of a composite film for a sanitary product packaging bag according to claim 2, characterized in that: The inlet box (2) is connected to two sets of unwinding roller connecting frames (21) on the side away from the primary laminating box (3), and the inner sides of the two sets of unwinding roller connecting frames (21) are connected to connecting sleeves (24), and the outer sides of the connecting sleeves (24) are slidably connected to the film roll limiting clamps (25), and a roller connecting shaft (26) is inserted between the two sets of connecting sleeves (24) through a bearing block, and the bottom film unwinding roller (22) is sleeved on the outer side of the roller connecting shaft (26).

4. The laminating production line of composite film for sanitary product packaging bags according to claim 3, characterized in that: The outer side of the unwinding roller connecting frame (21) is connected to a transmission drive box (23), one end of the transmission drive box (23) is connected to the transmission box connecting box (31), the outer side of the transmission drive box (23) is connected to an adjustment drive motor (231), and the outer side of the output shaft of the adjustment drive motor (231) is sleeved with a driving wheel (232) through a shaft key, one side of the driving wheel (232) is connected to an adjustment screw rod (233), and the outer side of the adjustment screw rod (233) is sleeved with a transmission slider (234), and the film roll limiting clamp (25) is connected to the outer side of the transmission slider (234).

5. The laminating production line of composite film for sanitary product packaging bags according to claim 4, characterized in that: An adjusting device box (33) is connected between the primary laminating box (3) and the transmission box connecting box (31), and between the secondary laminating box (5) and the transmission box connecting box (31). A connecting material box (36) is provided in the primary laminating box (3) and the secondary laminating box (5), and one end of the feeding pipe (311) is connected to the connecting material box (36). An adjusting drive assembly (34) is provided in the transmission box connecting box (31) and the adjusting device box (33), and an opening adjusting assembly (35) is provided in the laminating extrusion port (32).

6. The laminating production line of composite film for sanitary product packaging bags according to claim 5, characterized in that: The adjustment drive assembly (34) comprises a drive telescopic rod assembly (341) and a closed chain (343). A drive box (3411) is provided at the bottom of one end of the drive telescopic rod assembly (341), and a drive rotating shaft (3412) is connected to the drive box (3411). A transfer transmission shaft (312) is connected to the transmission box connection box (31). The transfer transmission shaft (312) is connected to an adjacent transfer transmission shaft (312) and a drive wheel (232) via a belt, and one end of the transfer transmission shaft (312) is connected to the drive rotating shaft (3412) via a belt.

7. The laminating production line of composite film for sanitary product packaging bags according to claim 6, characterized in that: One end of the telescopic shaft of the driving telescopic rod assembly (341) is connected to an adjusting connecting block (342), and the bottom of the end of the adjusting connecting block (342) away from the driving telescopic rod assembly (341) is connected to a material guide baffle (3421), and one end of the material guide baffle (3421) extends to the bottom end of the laminating extrusion outlet (32), and the closed chain (343) is connected to the top of the adjusting connecting block (342), one end of the closed chain (343) is fixedly connected to the regulating device box (33), and the inner side of the closed chain (343) is connected to a sealing soft board (344), and one side of the sealing soft board (344) is attached to the bottom of the connecting material box (36).

8. The laminating production line of composite film for sanitary product packaging bags according to claim 7, characterized in that: The bottom of the adjusting connection block (342) is connected to an adjusting driving slider (351), and one side of the adjusting driving slider (351) is connected to an eight-shaped outlet scraper (353), and the outlet scraper (353) is attached to the inner wall of the bottom opening of the laminating extrusion outlet (32), and a waste collection box (354) is provided below the outlet scraper (353), and the bottom of the adjusting driving slider (351) is connected to a scraper block (352), and the inner opening of the scraper block (352) is the same size as the outlet scraper (353).

9. The laminating production line of composite film for sanitary product packaging bags according to claim 8, characterized in that: One side of the adjustment connecting block (342) is connected to two groups of gear connecting blocks (355), and a lifting drive gear (356) is connected between the two groups of gear connecting blocks (355) via a rotating shaft. The inner wall of the adjustment device box (33) is connected to a cleaning gear plate (331) that meshes with the lifting drive gear (356). A fixed nut seat (357) is provided in the adjustment drive slider (351), and the outer side of the fixed nut seat (357) is sleeved with a transmission gear ring (358) that meshes with the lifting drive gear (356). The fixed nut seat (357) is internally threadedly connected to a lifting threaded rod (359), and the scraper block (352) is connected to the bottom end of the lifting threaded rod (359).

10. The composite film laminating production line for sanitary product packaging bags according to claim 2, characterized in that: A forming drying box (4) is provided between the primary laminating box (3) and the secondary laminating box (5), and between the secondary laminating box (5) and the corona treatment box (7); two sets of connecting side panels (71) are connected between the corona treatment box (7) and the tension adjustment box (9); and a plurality of guide rollers (27) are provided in the inlet box (2), the primary laminating box (3), the forming drying box (4), the secondary laminating box (5), the corona treatment box (7) and the tension adjustment box (9).

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