High-barrier high-transparency composite film and preparation method thereof

Abstract

The invention belongs to the technical field of composite films, and discloses a high-barrier and high-light-transmittance composite film and a preparation method thereof.The preparation method comprises the steps that the surface of a base material layer is cleaned and activated, the treated base material layer is placed in a gluing device for surface glue adhesive coating, and the surface of the base material layer is dried; and performing oxide plasma atomic layer deposition on the base material layer of which the surface is coated with the glue adhesive to prepare an oxide layer, and spraying glue on the surface of the oxide layer to prepare a glue layer. Through the design of the gluing device, damage detection can be conveniently carried out on the base material layer, an operator can be prompted, gluing on the damaged part of the base material layer is avoided, the gluing effect and the product quality are improved, and the problems that in the prior art, the base material layer is inconvenient to detect after being damaged, the damaged part of the base material layer cannot be effectively bonded with the barrier layer after being glued, and the product quality is poor are solved. The gluing effect is reduced, defective products are easy to produce, and the production quality of the composite film is reduced.

Description

Technical Field

[0001] The present invention belongs to the technical field of composite films, and specifically relates to a high-barrier and high-light-transmittance composite film and a preparation method thereof. Background Art

[0002] A high-barrier and high-light-transmittance composite film is a composite film material with high-barrier performance and high-light-transmittance performance. It is usually formed by bonding multiple material layers (substrate layer, barrier layer, adhesive layer, etc.). It can effectively block the penetration of gases and liquids such as oxygen and water vapor, and has a high light transmittance, which can ensure the clear visibility of the packaged contents. It is widely used in fields such as food packaging, pharmaceutical packaging, and electronic device encapsulation.

[0003] When preparing traditional high-barrier and high-light-transmittance composite films, glue needs to be coated on the surface of the substrate layer for bonding the barrier layer. The substrate layer is usually a transparent polymer film. When coating the glue, the wound substrate layer bobbin needs to be installed on the coating equipment. After the substrate layer is wound, it has a large volume and weight, and there are problems of being damaged to form perforations and cracks during handling and installation. When the existing coating equipment coats the substrate layer with glue, it is not convenient to detect damage to the substrate layer. After coating the damaged part of the substrate layer with glue, it cannot be effectively bonded to the barrier layer, reducing the coating effect, easily producing defective products, and reducing the production quality of the composite film. Summary of the Invention

[0004] Technical Problems to be Solved

[0005] To solve the problems raised in the above background art, the present invention provides a high-barrier and high-light-transmittance composite film and a preparation method thereof, which have the advantages of convenient operation, having a damage detection function, improving the coating effect and product quality. Through the coordinated design of structures such as a coating device, it is convenient to detect damage to the substrate layer, can prompt the operator, avoid coating the damaged part of the substrate layer with glue, and improve the coating effect and product quality.

[0006] Technical Solution

[0007] To achieve the above object, the present invention provides the following technical solution: A preparation method of a high-barrier and high-light-transmittance composite film, comprising the following steps:

[0008] S1: Clean and activate the surface of the substrate layer;

[0009] S2: Place the treated substrate layer in a coating device for surface glue adhesive coating;

[0010] S3: Perform oxide plasma atomic layer deposition on the substrate layer with surface-coated glue adhesive to prepare an oxide layer;

[0011] S4: spraying glue on the surface of the oxide layer to prepare a glue layer;

[0012] S5: spraying a platinum primer on the glue layer to prepare a platinum primer coating;

[0013] S6: spraying silica gel on the surface of the platinum primer layer to prepare a silica gel layer, and heating and curing the layer, thereby preparing a finished composite film;

[0014] The operation process in step S2 of the above-mentioned composite film preparation method needs to be coordinated by the glue coating device to complete the corresponding processing operations, wherein:

[0015] The glue coating device comprises a frame, a barrel on which the substrate layer is wound and arranged on the left side of the inner cavity of the frame, a glue coating roller and a first auxiliary roller arranged on the right side of the inner cavity of the frame, a first driving motor fixed to the front of the frame for driving the glue coating roller to rotate, an infusion mechanism arranged above the glue coating roller for outputting glue adhesive, and a detection mechanism arranged in the middle of the inner cavity of the frame for detecting damage to the substrate layer;

[0016] Wherein, the front and rear ends of the glue coating roller and the first auxiliary roller are movably connected to the inner cavity of the frame through bearings respectively.

[0017] In the above technical solution, preferably, the detection mechanism includes a mounting shell fixed in the middle of the inner cavity of the frame, an extrusion shell sliding left and right in the inner cavity of the mounting shell, a fitting shell sliding left and right in the right opening of the extrusion shell, a touch block arranged on the left side of the extrusion shell, a sealing plate sliding laterally in the middle of the inner cavity of the extrusion shell for driving the touch block to move laterally, a U-shaped touch rod fixed in the inner cavity of the fitting shell, a docking shell fixed in the inner cavity of the mounting shell and located on the right side of the fitting shell, an alarm generator fixed on the bottom surface of the extrusion shell, a driving mechanism arranged on the left side of the inner cavity of the mounting shell for driving the extrusion shell to move, and a cleaning mechanism arranged on the front and rear sides of the touch block and the extrusion shell for scraping off the glue on the front and rear sides of the composite film;

[0018] Wherein, the left end of the U-shaped touch rod penetrates to the left side of the extrusion shell.

[0019] In the above technical solution, preferably, the infusion mechanism includes a diverter shell fixed on the right side of the top surface of the inner cavity of the frame, a group of nozzles equidistantly connected to the bottom surface of the diverter shell, a scraper fixed on the left side wall of the diverter shell, a liquid storage tank fixed in the middle of the top surface of the frame, and a pump fixed on the top surface of the frame for transporting the liquid in the liquid storage tank to the diverter shell.

[0020] In the above technical solution, preferably, the driving mechanism includes two connecting blocks symmetrically fixed on the left side wall of the extrusion shell up and down, a driving rod vertically and rotatably installed on the left side of the inner cavity bottom surface of the installation shell, two cams symmetrically and fixedly sleeved on the driving rod and movably connected to the left side walls of the connecting blocks, and a second driving motor fixedly installed on the bottom surface of the installation shell for driving the driving rod to rotate;

[0021] Among them, two spring contraction rods are symmetrically arranged on the front and back of the left side wall of the connecting block, and the left and right ends of the spring contraction rods are respectively fixedly connected to the left side of the inner cavity of the installation shell and the left side wall of the connecting block.

[0022] In the above technical solution, preferably, the cleaning mechanism includes two support arms symmetrically and horizontally fixed at the front and rear ends of the touch block. Two sliding grooves are symmetrically opened on the right side of the opposite surfaces of the two support arms. A cleaning block that slides up and down in the sliding groove is used to clean the adhesive liquid on the side of the base material layer. Two scraping holes are symmetrically opened on the opposite surfaces of the two cleaning blocks. A scraping roller that moves left and right is arranged in the middle of the inner cavity of the cleaning block. Scraping blocks are circumferentially and equidistantly arranged on the outer surface of the scraping roller. A linkage mechanism for driving the scraping roller to move is arranged on the left side of the cleaning block. The opposite surfaces of the two support arms are horizontally slidably sleeved with a sleeve;

[0023] Among them, the right end of the support arm extends between the glue application roller and the first auxiliary roller. The left end of the sleeve is fixedly connected to the outer surface of the extrusion shell. A guide block is fixedly installed in the middle of the back surface of the cleaning block. A vertical hole is opened in the inner cavity of the sliding groove. An inclined guide channel is opened in the inner cavity of the sleeve. One end of the guide block penetrates through the inner cavity of the vertical hole and is movably connected to the inner cavity of the guide channel. A discharge channel is opened on the bottom surface of the cleaning block. An aggregate groove is opened on the bottom surface of the inner cavity of the sleeve below the cleaning block.

[0024] In the above technical solution, preferably, the linkage mechanism includes a two-stage telescopic rod fixed on the left side wall of the cleaning block, an air delivery channel opened on the support arm, and a guide rail horizontally and fixedly installed on the side of the inner cavity of the cleaning block away from the scraping hole;

[0025] Among them, the output shaft of the two-stage telescopic rod penetrates into the inner cavity of the cleaning block. A connecting frame is fixedly installed at the right end of the output shaft of the two-stage telescopic rod. The upper and lower ends of the scraping roller are movably connected to the inner cavity of the connecting frame through bearings. The side wall of the guide rail is movably connected to the outer surface of the scraping roller. The inner cavity of the air delivery channel is communicated with the left side of the inner cavity of the two-stage telescopic rod through a first hose. The inner cavity of the air delivery channel is communicated with the left side of the inner cavity of the extrusion shell through a second hose.

[0026] In the above technical solution, preferably, two connecting rods are symmetrically and fixedly installed on the front and rear sides of the left side wall of the sealing plate. The left end of the connecting rod penetrates the left side wall of the extrusion shell, and the left end of the connecting rod is fixedly connected to the right side wall of the touch block. A compression spring is movably sleeved on the connecting rod, and the two ends of the compression spring are respectively fixedly connected to the left side wall of the sealing plate and the left side of the inner cavity of the extrusion shell.

[0027] In the above technical solution, preferably, two first spring compression rods are symmetrically and fixedly installed on the front and rear sides of the middle part of the inner cavity of the extrusion shell, and the right end of the first spring compression rod is fixedly connected to the left side wall of the fitting shell.

[0028] In the above technical solution, preferably, a ventilation hole is opened on the right side of the inner cavity of the docking shell. A second auxiliary roller is movably installed above the docking shell through an inclined bracket. Two second spring compression rods are symmetrically and vertically fixed on the bottom surface of the docking shell. The bottom ends of the output shafts of the two second spring compression rods are fixedly installed with an assembly shell. A third auxiliary roller is movably installed in the inner cavity of the assembly shell through a bearing. Two fourth auxiliary rollers are symmetrically and movably installed through bearings on the upper and lower sides of the right side of the inner cavity of the installation shell.

[0029] A high-barrier and high-light-transmittance composite film includes a substrate layer, an oxide layer attached to the upper surface of the substrate layer, an adhesive layer attached to the upper surface of the oxide layer, a platinum primer layer attached to the upper surface of the adhesive layer, and a silica gel layer attached to the upper surface of the platinum primer layer;

[0030] Wherein, a release film is attached to the back surface of the substrate layer.

[0031] Beneficial effects

[0032] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0033] 1. Through the coordinated design of structures such as the glue - applying device, by controlling the operation of the driving mechanism, it can drive the extrusion shell to drive the fitting shell to move to the right, enabling the fitting shell and the docking shell to cooperate to clamp and fix the base material layer. As the extrusion shell continues to move to the right, the fitting shell can be embedded into the inner cavity of the extrusion shell, increasing the air pressure inside the extrusion shell. The air pressure can push the sealing plate to move to the left side of the inner cavity of the extrusion shell. At the same time, the fitting shell drives the U - shaped touch rod to extend out of the extrusion shell. When the base material layer is intact, the air pressure can push the sealing plate to drive the touch block to move to the left away from the U - shaped touch rod extending out of the extrusion shell. When there is a breakage in the base material layer, the air inside the extrusion shell enters the docking shell through the breakage of the base material layer and is discharged. The air pressure inside the extrusion shell weakens and cannot drive the sealing plate to drive the touch block to continue moving to the left under the elastic force of the compression spring, and the touch block will contact the U - shaped touch rod extending out of the extrusion shell, thereby activating the operation of the alarm generator, wirelessly transmitting the alarm signal to the external operation control system to prompt the operator, facilitating the detection of breakage of the base material layer, being able to prompt the operator, avoiding applying glue to the broken part of the base material layer, improving the glue - applying effect and product quality, and solving the problems in the prior art that it is not convenient to detect breakage of the base material layer, the glue applied to the broken part of the base material layer cannot be effectively bonded to the barrier layer, reducing the glue - applying effect, easily producing defective products, and reducing the production quality of the composite film.

[0034] 2. Through the coordinated design of structures such as the touch block, extrusion shell, and cleaning mechanism, when the touch block moves away from or approaches the extrusion shell, it can drive the support arm and the sleeve to move respectively. The movement of the support arm drives the cleaning block to move horizontally, and the movement of the sleeve drives the guide channel to move. When the cleaning block moves horizontally, under the interaction of the guide block and the guide channel, the cleaning block can move up and down in the chute. When the cleaning block moves up and down, it can scrape and clean the glue overflowing to the side of the base material layer. Through the scraping holes, the cleaned glue can fall into the aggregate tank for collection, and the cleaning and collection effect is good. At the same time, when the sealing plate moves and causes a change in the air pressure on the left side of the inner cavity of the extrusion shell, the change in the air pressure on the left side of the inner cavity of the extrusion shell can drive the scraping roller to move horizontally and rotate self - rotatably through the linkage mechanism. The scraping roller can drive the scraping block to move and rotate circumferentially to clean and dredge the glue adhesive blocked in the scraping holes, further improving the cleaning and collection effect of the glue, and solving the problems in the prior art that the glue - applying equipment collects the overflowing glue by setting collection containers below the front and rear sides of the base material layer, it is inconvenient to clean the glue overflowing to the side of the base material layer, and it is easy for the side of the composite film to be contaminated by the glue - bonded dust and impurities, affecting the product quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 It is a schematic structural diagram of the composite film of the present invention;

[0036] Figure 2 It is a schematic structural diagram of the glue - applying device of the present invention;

[0037] Figure 3 Schematic structural diagram of the frame, glue applicator roller, first auxiliary roller, first drive motor, and material cylinder of the present invention;

[0038] Figure 4 Schematic structural diagram of the infusion mechanism of the present invention;

[0039] Figure 5 Schematic structural diagram of the detection mechanism of the present invention;

[0040] Figure 6 Partial front view sectional structural diagram of the detection mechanism of the present invention;

[0041] Figure 7 Partial structural decomposition diagram of the detection mechanism of the present invention;

[0042] Figure 8 Schematic structural diagram of the docking shell of the present invention;

[0043] Figure 9 Partial sectional structural diagram of the cleaning mechanism of the present invention;

[0044] Figure 10 Partial structural diagram of the cleaning block, scraping hole, and linkage mechanism of the present invention;

[0045] Figure 11 Partial structural diagram of the cleaning block, guiding block, and linkage mechanism of the present invention.

[0046] In the figure: 1, base material layer; 2, oxide layer; 3, glue layer; 4, platinum primer coat; 5, silicone layer; 6, glue application device; 61, frame; 62, material cylinder; 63, glue applicator roller; 64, first auxiliary roller; 65, first drive motor; 7, infusion mechanism; 71, shunt housing; 72, nozzle; 73, squeegee; 74, liquid storage tank; 75, pump; 8, detection mechanism; 81, mounting housing; 82, extrusion housing; 83, fitting housing; 84, touch block; 85, sealing plate; 86, U-shaped touch rod; 87, docking shell; 88, alarm generator; 9, drive mechanism; 91, connecting block; 92, drive rod; 93, cam; 94, second drive motor; 95, spring contraction rod; 10, cleaning mechanism; 101, support arm; 102, chute; 103, cleaning block; 104, scraping hole; 105, scraping roller; 106, scraping block; 107, housing; 108, guiding block; 109, guiding channel; 11, linkage mechanism; 111, two-stage telescopic rod; 112, gas transmission channel; 113, guide rail; 114, connecting frame; 12, release film. Detailed implementation manners

[0047] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0048] As Figures 1 to 11 shown, the present invention provides a method for preparing a high-barrier and high-transparency composite film, comprising the following steps:

[0049] S1: Clean and activate the surface of the substrate layer 1;

[0050] S2: Place the treated substrate layer 1 in the gluing device 6 for surface glue adhesive coating;

[0051] S3: Prepare an oxide layer 2 by atomic layer deposition of oxide plasma on the surface of the substrate layer 1 coated with glue adhesive;

[0052] S4: Spray glue on the surface of the oxide layer 2 to prepare a glue layer 3;

[0053] S5: Spray a platinum primer on the glue layer 3 to prepare a platinum primer layer 4;

[0054] S6: Spray silicone on the surface of the platinum primer layer 4 to prepare a silicone layer 5, and perform heat curing, thereby obtaining a finished composite film by composite preparation;

[0055] The operation process in step S2 of the above method for preparing the composite film needs to be cooperated by the gluing device 6 to complete the corresponding treatment operations, wherein:

[0056] The gluing device 6 includes a frame 61, a material cylinder 62 wound with the substrate layer 1 disposed on the left side of the inner cavity of the frame 61, a gluing roller 63 and a first auxiliary roller 64 distributed up and down on the right side of the inner cavity of the frame 61, a first driving motor 65 fixed to the front of the frame 61 for driving the gluing roller 63 to rotate, an infusion mechanism 7 disposed above the gluing roller 63 for outputting glue adhesive, and a detection mechanism 8 disposed in the middle of the inner cavity of the frame 61 for detecting damage to the substrate layer 1;

[0057] Wherein, the front and rear ends of the gluing roller 63 and the first auxiliary roller 64 are respectively movably connected to the inner cavity of the frame 61 through bearings.

[0058] During use, the glue adhesive is conveyed to the surface of the gluing roller 63 through the infusion mechanism 7, the gluing roller 63 is driven to rotate by the first driving motor 65, and with the cooperation of the first auxiliary roller 64, the glue adhesive can be evenly coated on the surface of the substrate layer 1 when the gluing roller 63 rotates.

[0059] As shown Figures 6 to 8 in the figure, the detection mechanism 8 includes a mounting shell 81 fixed in the middle of the inner cavity of the frame 61, an extrusion shell 82 sliding left and right in the inner cavity of the mounting shell 81, a fitting shell 83 sliding left and right in the right opening of the extrusion shell 82, a touch block 84 arranged on the left side of the extrusion shell 82, a sealing plate 85 sliding horizontally in the middle of the inner cavity of the extrusion shell 82 for driving the touch block 84 to move horizontally, a U-shaped touch rod 86 fixed in the inner cavity of the fitting shell 83, a docking shell 87 fixed in the inner cavity of the mounting shell 81 on the right side of the fitting shell 83, an alarm generator 88 fixed on the bottom surface of the extrusion shell 82, a driving mechanism 9 arranged on the left side of the inner cavity of the mounting shell 81 for driving the extrusion shell 82 to move, and a cleaning mechanism 10 arranged on the front and back sides of the touch block 84 and the extrusion shell 82 for scraping the adhesive liquid on the front and back sides of the composite film;

[0060] Among them, the U-shaped touch rod 86 and the touch block 84 are respectively electrically connected to the alarm generator 88 through wires. After the left end of the U-shaped touch rod 86 contacts the right side wall of the touch block 84, a complete circuit is formed with the alarm generator 88, which can activate the operation of the alarm generator 88 and wirelessly transmit the alarm signal to the external operation control system to prompt the operator. The left end of the U-shaped touch rod 86 penetrates to the left side of the extrusion shell 82. Two connecting rods are symmetrically and fixedly installed on the front and back sides of the left side wall of the sealing plate 85. The left ends of the connecting rods penetrate the left side wall of the extrusion shell 82, and the left ends of the connecting rods are fixedly connected to the right side wall of the touch block 84. A compression spring is movably sleeved on the connecting rod, and the two ends of the compression spring are respectively fixedly connected to the left side wall of the sealing plate 85 and the left side of the inner cavity of the extrusion shell 82. Two first spring compression rods are symmetrically and fixedly installed on the front and back sides of the middle of the inner cavity of the extrusion shell 82, and the right ends of the first spring compression rods are fixedly connected to the left side wall of the fitting shell 83. A ventilation hole is opened on the right side of the inner cavity of the docking shell 87. A second auxiliary roller is movably installed above the docking shell 87 through an inclined bracket. Two second spring compression rods are symmetrically and vertically fixed on the bottom surface of the docking shell 87. The bottom ends of the output shafts of the two second spring compression rods are fixedly installed with an assembly shell. A third auxiliary roller is movably installed in the inner cavity of the assembly shell through a bearing. Two fourth auxiliary rollers are movably installed through bearings on the upper and lower symmetry on the right side of the inner cavity of the mounting shell 81.

[0061] During use, by controlling the operation of the driving mechanism 9, it is possible to drive the extrusion shell 82 to drive the fitting shell 83 to move to the right, enabling the fitting shell 83 to cooperate with the docking shell 87 to clamp and fix the base material layer 1. As the extrusion shell 82 continues to move to the right, the fitting shell 83 can be embedded into the inner cavity of the extrusion shell 82, increasing the air pressure inside the extrusion shell 82. The air pressure can push the sealing plate 85 to move to the left side of the inner cavity of the extrusion shell 82. At the same time, the fitting shell 83 drives the U-shaped touch rod 86 to extend out of the extrusion shell 82. When the base material layer 1 is not damaged, the air pressure can push the sealing plate 85 to drive the touch block 84 to move leftward away from the U-shaped touch rod 86 extending out of the extrusion shell 82. When the base material layer 1 has a break, the air inside the extrusion shell 82 enters the docking shell 87 through the break of the base material layer 1 and is discharged. The air pressure inside the extrusion shell 82 weakens and cannot drive the sealing plate 85 to drive the touch block 84 to continue moving leftward under the elastic force of the compression spring. The touch block 84 will contact the U-shaped touch rod 86 extending out of the extrusion shell 82, thereby activating the operation of the alarm generator 88, wirelessly transmitting the alarm signal to the external operation control system to prompt the operator, facilitating the detection of damage to the base material layer 1, being able to prompt the operator, avoiding applying glue to the damaged part of the base material layer 1, and improving the glue application effect and product quality.

[0062] It should be noted that during the movement of the touch block 84 and the extrusion shell 82, it is possible to drive the operation of the cleaning mechanism 10. Through the cleaning mechanism 10, the glue overflowing to the front and back sides of the base material layer 1 during the coating process can be scraped and cleaned. The cleaning and collection effect is good, avoiding the glue overflowing to the front and back sides of the base material layer 1 from adhering to dust and impurities and affecting the preparation effect and quality of the composite film. It solves the problem that the traditional glue coating equipment sets collection containers below the front and back sides of the base material layer 1 to collect the overflowing glue, which is inconvenient to clean the glue overflowing to the side of the base material layer 1 and easily causes the side of the composite film to be contaminated by the glue adhering to dust and impurities, affecting the product quality.

[0063] As Figure 4 shown, the infusion mechanism 7 includes a shunt shell 71 fixed to the right side of the top surface of the inner cavity of the frame 61, a group of spray heads 72 equidistantly communicated with the bottom surface of the shunt shell 71, a scraping plate 73 fixed to the left side wall of the shunt shell 71, a liquid storage tank 74 fixed to the middle of the top surface of the frame 61, and a pump 75 fixed to the top surface of the frame 61 for transporting the liquid in the liquid storage tank 74 to the shunt shell 71.

[0064] During use, through the operation of the pump 75, the glue adhesive in the liquid storage tank 74 can be transported to the spray heads 72 through the shunt shell 71 and sprayed onto the surface of the coating roller 63, and the scraping plate 73 can make the glue adhesive on the surface of the coating roller 63 evenly distributed, facilitating the improvement of the uniformity of the glue adhesive coating.

[0065] As Figure 7As shown in the figure, the driving mechanism 9 includes two connecting blocks 91 symmetrically fixed on the left side wall of the extrusion shell 82 from top to bottom, a driving rod 92 vertically and rotatably installed on the left side of the inner cavity bottom surface of the installation shell 81, two cams 93 symmetrically fixed on the driving rod 92 and movably connected to the left side wall of the connecting block 91, and a second driving motor 94 fixedly installed on the bottom surface of the installation shell 81 for driving the driving rod 92 to rotate.

[0066] Among them, two spring contraction rods 95 are symmetrically arranged on the front and rear sides of the left side wall of the connecting block 91. The left and right ends of the spring contraction rods 95 are fixedly connected to the left side of the inner cavity of the installation shell 81 and the left side wall of the connecting block 91 respectively.

[0067] During use, the second driving motor 94 operates to drive the driving rod 92 to rotate. The rotation of the driving rod 92 can drive the two cams 93 to rotate. When the cams 93 rotate, they interact with the connecting block 91, and with the cooperation of the pulling force of the spring contraction rods 95, the extrusion shell 82 can be driven to move reciprocally left and right.

[0068] As Figures 9 to 11 shown in the figure, the cleaning mechanism 10 includes two support arms 101 symmetrically and horizontally fixed at the front and rear ends of the touch block 84. Two sliding grooves 102 are symmetrically opened on the right side of the opposite surfaces of the two support arms 101. A cleaning block 103 that slides up and down in the sliding grooves 102 is used to remove the glue on the side of the base material layer 1. Scraping holes 104 are symmetrically opened on the opposite surfaces of the two cleaning blocks 103. A scraping roller 105 that moves left and right is arranged in the middle of the inner cavity of the cleaning block 103. Scraping blocks 106 are circumferentially and equidistantly arranged on the outer surface of the scraping roller 105. A linkage mechanism 11 for driving the scraping roller 105 to move is arranged on the left side of the cleaning block 103. A sleeve 107 is horizontally slidably sleeved on the opposite surfaces of the two support arms 101.

[0069] Among them, the right end of the support arm 101 extends between the coating roller 63 and the first auxiliary roller 64. The left end of the sleeve 107 is fixedly connected to the outer surface of the extrusion shell 82. A guide block 108 is fixedly installed in the middle of the back surface of the cleaning block 103. A vertical hole is opened in the inner cavity of the sliding groove 102. An inclined guide channel 109 is opened in the inner cavity of the sleeve 107. One end of the guide block 108 penetrates the inner cavity of the vertical hole and is movably connected to the inner cavity of the guide channel 109. A discharge channel is opened on the bottom surface of the cleaning block 103. An aggregate groove is opened on the bottom surface of the inner cavity of the sleeve 107 below the cleaning block 103.

[0070] During use, when the touch block 84 moves away from or closer to the extrusion shell 82, it can drive the support arm 101 and the sleeve 107 to move respectively. When the support arm 101 moves, it drives the cleaning block 103 to move horizontally. When the sleeve 107 moves, it drives the guiding channel 109 to move. When the cleaning block 103 moves horizontally, under the interaction of the guiding block 108 and the guiding channel 109, the cleaning block 103 can move up and down in the sliding groove 102. When the cleaning block 103 moves up and down, it can scrape and clean the glue overflowing to the side of the base material layer 1. The scraped glue can fall into the aggregate tank through the scraping hole 104 for collection. At the same time, when the sealing plate 85 moves to change the air pressure on the left side of the inner cavity of the extrusion shell 82, the change in the air pressure on the left side of the inner cavity of the extrusion shell 82 can drive the scraping roller 105 to move horizontally and rotate by itself through the linkage mechanism 11. The scraping roller 105 can drive the scraping block 106 to move and rotate circumferentially to clean and dredge the blocked glue adhesive in the scraping hole 104, further improving the effect of cleaning and collecting the glue.

[0071] As Figure 9 and Figure 11 shown, the linkage mechanism 11 includes a two-stage telescopic rod 111 fixed to the left side wall of the cleaning block 103, an air delivery channel 112 opened on the support arm 101, and a guide rail 113 horizontally and fixedly installed on one side of the inner cavity of the cleaning block 103 away from the scraping hole 104;

[0072] Among them, the output shaft of the two-stage telescopic rod 111 penetrates into the inner cavity of the cleaning block 103. A connecting frame 114 is fixedly installed at the right end of the output shaft of the two-stage telescopic rod 111. The upper and lower ends of the scraping roller 105 are movably connected to the inner cavity of the connecting frame 114 through bearings. The side wall of the guide rail 113 is movably connected to the outer surface of the scraping roller 105. The inner cavity of the air delivery channel 112 is communicated with the left side of the inner cavity of the two-stage telescopic rod 111 through a first hose, and the inner cavity of the air delivery channel 112 is communicated with the left side of the inner cavity of the extrusion shell 82 through a second hose.

[0073] During use, when the sealing plate 85 moves to change the air pressure on the left side of the inner cavity of the extrusion shell 82, the air in the extrusion shell 82 can drive the two-stage telescopic rod 111 to extend or contract through the first hose, the air delivery channel 112 and the second hose. When the two-stage telescopic rod 111 extends or contracts, it can drive the scraping roller 105 to move left and right through the connecting frame 114. With the cooperation of the guide rail 113, when the scraping roller 105 moves left and right, it can rotate by itself and drive the scraping block 106 to rotate circumferentially to clean and dredge the blocked glue adhesive in the scraping hole 104, improving the efficiency of glue collection.

[0074] As Figure 1As shown in the figure, the present invention also provides a high-barrier and high-transparency composite film, which includes a substrate layer 1 made of PET, an oxide layer 2 made of aluminum oxide attached to the upper surface of the substrate layer 1. The oxide layer 2 made of aluminum oxide has a shielding property and can effectively block water vapor and oxygen. A glue layer 3 made of polyester material is attached to the upper surface of the oxide layer 2, a platinum primer layer 4 is attached to the upper surface of the glue layer 3. The platinum primer layer 4 can improve the mechanical strength and stability of the composite film, and a silica gel layer 5 is attached to the upper surface of the platinum primer layer 4;

[0075] Wherein, a release film 12 is sprayed on the back surface of the substrate layer 1, and the release film 12 is a non-silicone release film.

[0076] The working principle and usage process of the present invention:

[0077] During use, first, the operator threads the base material layer 1 on the barrel 62 into the installation shell 81, causing the base material layer 1 to pass over the second auxiliary roller, then downward through the space between the fitting shell 83 and the docking shell 87, then downward again under the third auxiliary roller, and then upward through the space between the two fourth auxiliary rollers to between the coating roller 63 and the first auxiliary roller 64. Subsequently, the right end of the base material layer 1 is connected to the subsequent processing equipment. By operating the pump 75, the glue adhesive in the liquid storage tank 74 can be transported through the shunt shell 71 to the nozzle 72 and sprayed onto the surface of the coating roller 63. By driving the coating roller 63 to rotate with the first drive motor 65, the glue adhesive on the surface of the coating roller 63 can be evenly distributed by the scraper 73. With the cooperation of the first auxiliary roller 64, when the coating roller 63 rotates, the glue adhesive can be evenly coated on the surface of the base material layer 1. By operating the second drive motor 94 to drive the drive rod 92 to rotate, the rotation of the drive rod 92 can drive the two cams 93 to rotate. When the cams 93 rotate, they interact with the connecting block 91, and with the pulling force of the spring contraction rod 95, the extrusion shell 82 can be driven to move left and right reciprocally. When the extrusion shell 82 moves to the right and drives the fitting shell 83 to move, the fitting shell 83 can cooperate with the docking shell 87 to clamp and fix the base material layer 1. As the extrusion shell 82 continues to move to the right, the fitting shell 83 can be embedded into the inner cavity of the extrusion shell 82, increasing the air pressure inside the extrusion shell 82. The air pressure can push the sealing plate 85 to move to the left side of the inner cavity of the extrusion shell 82. At the same time, the fitting shell 83 drives the U-shaped touch rod 86 to extend out of the extrusion shell 82. When the base material layer 1 is not damaged, the air pressure can push the sealing plate 85 to drive the touch block 84 to move leftward away from the U-shaped touch rod 86 extending out of the extrusion shell 82. When the base material layer 1 is damaged, the air inside the extrusion shell 82 enters the docking shell 87 through the damaged part of the base material layer 1 and is discharged. The air pressure inside the extrusion shell 82 weakens and cannot drive the sealing plate 85 to drive the touch block 84 to continue moving leftward under the elastic force of the compression spring. The touch block 84 will contact the U-shaped touch rod 86 extending out of the extrusion shell 82, thereby activating the alarm generator 88 to operate and wirelessly transmit the alarm signal to the external operation control system to prompt the operator, enabling damage detection of the base material layer 1. At the same time, when the touch block 84 moves away from or approaches the extrusion shell 82, it can drive the support arm 101 and the sleeve 107 to move respectively. The movement of the support arm 101 drives the cleaning block 103 to move horizontally, and the movement of the sleeve 107 drives the guiding channel 109 to move. When the cleaning block 103 moves horizontally, under the interaction of the guiding block 108 and the guiding channel 109, the cleaning block 103 can move up and down in the sliding groove 102. When the cleaning block 103 moves up and down, it can scrape and clean the glue overflowing to the side of the base material layer 1. The cleaned glue can fall into the aggregate tank through the scraping hole 104 for collection. At the same time, when the sealing plate 85 moves to change the air pressure on the left side of the inner cavity of the extrusion shell 82,The air inside the extrusion shell 82 can drive the two-stage telescopic rod 111 to extend or contract through the first hose, the air delivery channel 112, and the second hose. When the two-stage telescopic rod 111 extends or contracts, it can drive the scraping roller 105 to move left and right through the connecting frame 114. With the cooperation of the guide rail 113, the scraping roller 105 can rotate automatically when it moves left and right. The scraping roller 105 can drive the scraping block 106 to rotate circumferentially to clean and dredge the clogged glue adhesive in the scraping holes 104.

[0078] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device.

[0079] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A method for preparing a high-barrier and high-light-transmittance composite film, characterized in that, Including the following steps: S1: Clean and activate the surface of the substrate layer (1); S2: Place the treated substrate layer (1) in a gluing device (6) for surface glue adhesive coating; S3: Prepare an oxide layer (2) by oxide plasma atomic layer deposition on the substrate layer (1) with surface-coated glue adhesive; S4: Spray glue on the surface of the oxide layer (2) to prepare a glue layer (3); S5: Spray a platinum primer on the glue layer (3) to prepare a platinum primer layer (4); S6: Spray silicone on the surface of the platinum primer layer (4) to prepare a silicone layer (5), and perform heat curing to obtain a finished composite film by compounding; In the operation process of step S2 of the above composite film preparation method, the corresponding treatment operations need to be completed by the cooperation of the gluing device (6), where: The gluing device (6) includes a frame (61), a material cylinder (62) wound with the substrate layer (1) on the left side of the inner cavity of the frame (61), a gluing roller (63) and a first auxiliary roller (64) distributed vertically on the right side of the inner cavity of the frame (61), a first driving motor (65) fixed on the front part of the frame (61) for driving the gluing roller (63) to rotate, an infusion mechanism (7) arranged above the gluing roller (63) for outputting glue adhesive, and a detection mechanism (8) arranged in the middle of the inner cavity of the frame (61) for detecting damage to the substrate layer (1); Wherein, the front and rear ends of the gluing roller (63) and the first auxiliary roller (64) are respectively movably connected to the inner cavity of the frame (61) through bearings.

2. The preparation method of the high-barrier and high-light-transmittance composite film according to claim 1, characterized in that: The detection mechanism (8) includes a mounting shell (81) fixed in the middle of the inner cavity of the frame (61), an extrusion shell (82) sliding left and right in the inner cavity of the mounting shell (81), a fitting shell (83) sliding left and right in the right opening of the extrusion shell (82), a touch block (84) arranged on the left side of the extrusion shell (82), a sealing plate (85) sliding horizontally in the middle of the inner cavity of the extrusion shell (82) for driving the touch block (84) to move horizontally, a U-shaped touch rod (86) fixed in the inner cavity of the fitting shell (83), a docking shell (87) fixed in the inner cavity of the mounting shell (81) on the right side of the fitting shell (83), an alarm generator (88) fixed on the bottom surface of the extrusion shell (82), a driving mechanism (9) arranged on the left side of the inner cavity of the mounting shell (81) for driving the extrusion shell (82) to move, and a cleaning mechanism (10) arranged on the front and rear sides of the touch block (84) and the extrusion shell (82) for scraping the glue on the front and back sides of the composite film; Wherein, the left end of the U-shaped touch rod (86) penetrates to the left side of the extrusion shell (82).

3. The preparation method of the high-barrier and high-light-transmittance composite film according to claim 1, characterized in that: The infusion mechanism (7) includes a shunt housing (71) fixed to the right side of the inner cavity top surface of the frame (61), a group of spray nozzles (72) equidistantly communicated with the bottom surface of the shunt housing (71), a scraper (73) fixed to the left side wall of the shunt housing (71), a liquid storage tank (74) fixed to the middle of the top surface of the frame (61), and a pump (75) fixed to the top surface of the frame (61) for transporting the liquid in the liquid storage tank (74) into the shunt housing (71).

4. The preparation method of the high-barrier and high-light-transmittance composite film according to claim 2, wherein: The driving mechanism (9) includes two connecting blocks (91) symmetrically fixed to the left side wall of the extrusion housing (82) up and down, a driving rod (92) vertically rotatably installed on the left side of the inner cavity bottom surface of the installation housing (81), two cams (93) symmetrically fixedly sleeved on the driving rod (92) and movably connected to the left side wall of the connecting block (91), and a second driving motor (94) fixedly installed on the bottom surface of the installation housing (81) for driving the driving rod (92) to rotate; Among them, two spring contraction rods (95) are symmetrically arranged on the front and back of the left side wall of the connecting block (91), and the left and right ends of the spring contraction rod (95) are respectively fixedly connected to the left side of the inner cavity of the installation housing (81) and the left side wall of the connecting block (91).

5. The preparation method of the high-barrier and high-light-transmittance composite film according to claim 2, wherein: The cleaning mechanism (10) includes two support arms (101) symmetrically and horizontally fixed to the front and rear ends of the touch block (84). Two sliding grooves (102) are symmetrically opened on the right side of the opposite surfaces of the two support arms (101). A cleaning block (103) is slid up and down in the sliding groove (102) for removing the adhesive liquid on the side of the base material layer (1). Two scraping holes (104) are symmetrically opened on the opposite surfaces of the two cleaning blocks (103). A scraping roller (105) moving left and right is arranged in the middle of the inner cavity of the cleaning block (103). Scraping blocks (106) are circumferentially equidistantly arranged on the outer surface of the scraping roller (105). A linkage mechanism (11) for driving the scraping roller (105) to move is arranged on the left side of the cleaning block (103). A sleeve (107) is horizontally slidably sleeved on the opposite surfaces of the two support arms (101); Among them, the right end of the support arm (101) extends between the coating roller (63) and the first auxiliary roller (64). The left end of the sleeve (107) is fixedly connected to the outer surface of the extrusion housing (82). A guide block (108) is fixedly installed in the middle of the back surface of the cleaning block (103). A vertical hole is opened in the inner cavity of the sliding groove (102). An inclined guide channel (109) is opened in the inner cavity of the sleeve (107). One end of the guide block (108) penetrates the inner cavity of the vertical hole and is movably connected to the inner cavity of the guide channel (109). A discharge channel is opened on the bottom surface of the cleaning block (103). An aggregate groove is opened on the bottom surface of the inner cavity of the sleeve (107) below the cleaning block (103).

6. The preparation method of the high-barrier and high-light-transmittance composite film according to claim 5, wherein: The linkage mechanism (11) includes a two-stage telescopic rod (111) fixed to the left side wall of the cleaning block (103), an air delivery channel (112) opened on the support arm (101), and a guide rail (113) horizontally and fixedly installed on one side of the inner cavity of the cleaning block (103) away from the scraping hole (104); Among them, the output shaft of the two-stage telescopic rod (111) penetrates into the inner cavity of the cleaning block (103), the right end of the output shaft of the two-stage telescopic rod (111) is fixedly installed with a connecting frame (114), the upper and lower ends of the scraping roller (105) are movably connected to the inner cavity of the connecting frame (114) through bearings, the side wall of the guide rail (113) is movably connected to the outer surface of the scraping roller (105), the inner cavity of the air delivery channel (112) is communicated with the left side of the inner cavity of the two-stage telescopic rod (111) through a first hose, and the inner cavity of the air delivery channel (112) is communicated with the left side of the inner cavity of the extrusion shell (82) through a second hose.

7. The preparation method of the high-barrier and high-light-transmittance composite film according to claim 2, wherein: Two connecting rods are symmetrically and fixedly installed on the left side wall of the sealing plate (85) in the front and back. The left end of the connecting rod penetrates the left side wall of the extrusion shell (82), and the left end of the connecting rod is fixedly connected to the right side wall of the touch block (84). A compression spring is movably sleeved on the connecting rod, and the two ends of the compression spring are respectively fixedly connected to the left side wall of the sealing plate (85) and the left side of the inner cavity of the extrusion shell (82).

8. The preparation method of the high-barrier and high-light-transmittance composite film according to claim 2, wherein: Two first spring compression rods are symmetrically and fixedly installed on the front and back sides of the middle part of the inner cavity of the extrusion shell (82), and the right end of the first spring compression rod is fixedly connected to the left side wall of the fitting shell (83).

9. The preparation method of the high-barrier and high-light-transmittance composite film according to claim 2, wherein: An air vent is opened on the right side of the inner cavity of the docking shell (87). A second auxiliary roller is movably installed above the docking shell (87) through an inclined bracket. Two second spring compression rods are symmetrically and vertically fixed on the bottom surface of the docking shell (87). The bottom ends of the output shafts of the two second spring compression rods are fixedly installed with a fitting shell. A third auxiliary roller is movably installed in the inner cavity of the fitting shell through a bearing. Two fourth auxiliary rollers are movably installed above and below the right side of the inner cavity of the installation shell (81) through bearings.

10. A method for preparing a high-barrier and high-light-transmittance composite film according to any one of claims 1-9, characterized in that: The high-barrier and high-light-transmittance composite film includes a substrate layer (1), an oxide layer (2) attached to the upper surface of the substrate layer (1), an adhesive layer (3) attached to the upper surface of the oxide layer (2), a platinum primer layer (4) attached to the upper surface of the adhesive layer (3), and a silica gel layer (5) attached to the upper surface of the platinum primer layer (4); Among them, a release film (12) is attached to the back surface of the substrate layer (1).

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