CN113564535B - Preparation method and device of transparent high-barrier alumina film - Google Patents

Preparation method and device of transparent high-barrier alumina film Download PDF

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Publication number
CN113564535B
CN113564535B CN202110825967.3A CN202110825967A CN113564535B CN 113564535 B CN113564535 B CN 113564535B CN 202110825967 A CN202110825967 A CN 202110825967A CN 113564535 B CN113564535 B CN 113564535B
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coating
pet film
heat
aluminum oxide
plate
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CN113564535A (en
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林武辉
符坚
时蕊花
吴昊
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Zhejiang Haishun New Material Co ltd
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Zhejiang Haishun New Material Co ltd
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    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
    • C23C14/22—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the process of coating
    • C23C14/24—Vacuum evaporation
    • C23C14/26—Vacuum evaporation by resistance or inductive heating of the source
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C1/00—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating
    • B05C1/04—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length
    • B05C1/08—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length using a roller or other rotating member which contacts the work along a generating line
    • B05C1/12—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length using a roller or other rotating member which contacts the work along a generating line the work being fed round the roller
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C9/00—Apparatus or plant for applying liquid or other fluent material to surfaces by means not covered by any preceding group, or in which the means of applying the liquid or other fluent material is not important
    • B05C9/04—Apparatus or plant for applying liquid or other fluent material to surfaces by means not covered by any preceding group, or in which the means of applying the liquid or other fluent material is not important for applying liquid or other fluent material to opposite sides of the work
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C9/00—Apparatus or plant for applying liquid or other fluent material to surfaces by means not covered by any preceding group, or in which the means of applying the liquid or other fluent material is not important
    • B05C9/06—Apparatus or plant for applying liquid or other fluent material to surfaces by means not covered by any preceding group, or in which the means of applying the liquid or other fluent material is not important for applying two different liquids or other fluent materials, or the same liquid or other fluent material twice, to the same side of the work
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C9/00—Apparatus or plant for applying liquid or other fluent material to surfaces by means not covered by any preceding group, or in which the means of applying the liquid or other fluent material is not important
    • B05C9/08—Apparatus or plant for applying liquid or other fluent material to surfaces by means not covered by any preceding group, or in which the means of applying the liquid or other fluent material is not important for applying liquid or other fluent material and performing an auxiliary operation
    • B05C9/14—Apparatus or plant for applying liquid or other fluent material to surfaces by means not covered by any preceding group, or in which the means of applying the liquid or other fluent material is not important for applying liquid or other fluent material and performing an auxiliary operation the auxiliary operation involving heating or cooling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
    • B05D3/02—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by baking
    • B05D3/0254—After-treatment
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D5/00—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
    • C23C14/0021—Reactive sputtering or evaporation
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
    • C23C14/06—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the coating material
    • C23C14/08—Oxides
    • C23C14/081—Oxides of aluminium, magnesium or beryllium
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
    • C23C14/22—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the process of coating
    • C23C14/56—Apparatus specially adapted for continuous coating; Arrangements for maintaining the vacuum, e.g. vacuum locks
    • C23C14/562—Apparatus specially adapted for continuous coating; Arrangements for maintaining the vacuum, e.g. vacuum locks for coating elongated substrates
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
    • C23C14/58—After-treatment

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Physical Vapour Deposition (AREA)

Abstract

The invention relates to the field of preparation of aluminum oxide films, in particular to a preparation method and a device of a transparent high-barrier aluminum oxide film, wherein a PET film substrate is wound between a conveying device and a winding device, a vacuum chamber is arranged above one side of a bottom plate, which is close to the conveying device, of the conveying device, a horizontal driving mechanism is arranged above the conveying device, a film coating mechanism is arranged at the bottom end of the horizontal driving mechanism, and the film coating mechanism is arranged right above the PET film substrate; be provided with the support frame between conveyer and the coiling mechanism, be provided with highly adjustable heating rod in the support frame, the both ends of support frame are provided with separation coating mechanism and first heat seal coating mechanism respectively, are provided with second heat seal coating mechanism between support frame and the coiling mechanism. When the coating machine is used, the PET film substrate passes through the vacuum chamber after being coated, is coated, tensioned and preliminarily dried, and is finally coiled by the coiling device to obtain a transparent high-barrier aluminum oxide film finished product, so that the working efficiency is improved.

Description

Preparation method and device of transparent high-barrier alumina film
Technical Field
The invention relates to the field of preparation of aluminum oxide films, in particular to a preparation method and a device of a transparent high-barrier aluminum oxide film.
Background
The alumina film has the following advantages:
1. has high barrier property: the superior water-blocking and oxygen-blocking performance is less than 2;
2. transparency: the articles in the packaging bag can be clearly seen (the light transmittance of the single-layer film is larger than or equal to 89%);
3. environmental protection: nontoxic, meets the food sanitation standard (meets FDA/EU requirements);
4. workability: has good printing and compound properties, can be boiled in water, and even can be boiled;
5. microwave heating is possible: can be detected by a metal detector.
The aluminum oxide film is generally prepared by plating an aluminum oxide coating on the surface of a PET film substrate, and when the aluminum oxide film is plated, the temperature of an evaporation boat is raised to evaporate aluminum blocks to form aluminum vapor and react with oxygen to generate aluminum oxide, so that the aluminum oxide film is plated on the PET film substrate, and the incomplete plating is easily caused. After the plating is finished, the barrier coating and the heat sealing coating are required to be coated, secondary processing or tertiary processing is required, the workload is increased, and meanwhile, the coating is required to wait for drying after being coated, so that the working efficiency is reduced.
Disclosure of Invention
In order to solve the defects in the background art, the invention aims to provide a preparation method and a device for a transparent high-barrier alumina film.
The aim of the invention can be achieved by the following technical scheme:
the preparation method of the transparent high-barrier aluminum oxide film comprises a PET film substrate, wherein an aluminum oxide plating layer, a barrier coating and a heat seal coating are sequentially compounded on one side surface of the PET film substrate, and a heat seal coating is compounded on the other side surface of the PET film substrate;
the preparation method of the aluminum oxide film comprises the following steps:
1. drawing the PET film substrate coiled film into a vacuum chamber through two conveying devices;
2. the conveying device and the winding device are driven to enable the PET film base material to horizontally move, and the upper surface of the PET film base material on the conveying device faces to the right upper side;
3. after the PET film substrate reaches the vacuum chamber, the evaporation boat is heated to enable the aluminum blocks to be melted on the evaporation boat and then evaporated to form aluminum vapor, then high-purity oxygen is introduced to react to generate aluminum oxide, and the aluminum oxide is plated on the PET film substrate to form an aluminum oxide coating;
4. after the aluminum oxide coating is formed, coating a barrier coating on the surface of the aluminum oxide coating, heating by a heating rod for preliminary drying, coating a heat-seal coating on the surface of the barrier coating and the bottom surface of the PET film substrate, and drying to form the heat-seal coating;
5. and finally, rolling by using a rolling device to obtain a transparent high-barrier aluminum oxide film finished product.
The preparation device of the transparent high-barrier aluminum oxide film comprises the conveying device and the rolling device, wherein the conveying device and the rolling device are both fixed on a bottom plate, a PET film substrate is wound between the conveying device and the rolling device, a vacuum chamber is arranged above one side of the bottom plate, which is close to the conveying device, and the other side of the bottom plate, which is far away from the conveying device, is a common outdoor;
a horizontal driving mechanism is arranged above the conveying device, a coating mechanism is arranged at the bottom end of the horizontal driving mechanism, and the coating mechanism is arranged right above the PET film base material;
a supporting frame is arranged between the conveying device and the winding device, a heating rod with adjustable height is arranged in the supporting frame, a barrier coating mechanism and a first heat-seal coating mechanism are respectively arranged at two ends of the supporting frame, and the barrier coating mechanism and the first heat-seal coating mechanism are identical in structure and are all arranged above the PET film base material;
and a second heat-seal coating mechanism is arranged between the supporting frame and the winding device and is arranged below the PET film base material.
Further, the horizontal driving mechanism comprises two parallel first linear electric cylinders and two parallel second linear electric cylinders which are fixed above the bottom plate, and the first linear electric cylinders and the second linear electric cylinders are connected end to form a rectangular frame body;
the first linear electric cylinder comprises a first linear guide rail and a first electric cylinder sliding block which is arranged on the first linear guide rail in a sliding manner, first connecting plates are arranged at the inner side ends of the first electric cylinder sliding blocks, and a first connecting rod is fixed between the two first connecting plates;
the second linear electric cylinder comprises a second linear guide rail and a second electric cylinder sliding block which is arranged on the second linear guide rail in a sliding manner, the inner side ends of the second electric cylinder sliding blocks are respectively provided with a second connecting plate, a second connecting rod is fixed between the two second connecting plates, a movable plate is arranged on the second connecting rods and the first connecting rods, and the movable plate is arranged on the second connecting rods and the first connecting rods in a horizontal sliding manner.
Further, the coating mechanism comprises a first pneumatic cylinder fixed at the bottom end of the movable plate, a rotating plate is arranged below the first pneumatic cylinder, a first pneumatic rod on the first pneumatic cylinder is rotationally connected with a rotating pair at the upper end of the rotating plate, a first supporting block is arranged on the side wall of the first pneumatic cylinder body, a second supporting block is connected below the first supporting block through a telescopic rod, a first motor is arranged at the side end of the second supporting block, and the output end of the first motor is fixedly connected with the rotating plate.
Further, the side end of the rotating plate is provided with an evaporation boat, an evaporation cavity with a large upper end opening and a small lower end opening is formed in the evaporation boat, an aluminum block is arranged in the evaporation cavity in a matched mode, a cover plate is arranged at the upper end of the aluminum block in a sealing mode, a heating pipe is arranged at the side end of the evaporation boat, and a heating source is arranged at the middle position of the heating pipe.
Further, the support frame comprises two symmetrically arranged support side plates fixed at the upper end of the bottom plate, a first tensioning roller, a second tensioning roller and a third tensioning roller are rotationally connected between the support side plates, the third tensioning roller is arranged above the first tensioning roller and the second tensioning roller, after the PET film base material passes out of the vacuum chamber, the PET film base material is sequentially wound at the lower end of the first tensioning roller, the upper end of the second tensioning roller and the lower end of the third tensioning roller and then passes out of the support frame, the upper end of the support side plate is fixed with a rectangular frame, two ends of one side of the rectangular frame are respectively provided with a rectangular support plate, two ends of the other side of the rectangular frame are respectively provided with a rectangular groove, and the bottom end of the rectangular groove is provided with a first limiting chute;
the side of rectangular channel is provided with the second motor, the base side of second motor be provided with first spacing spout sliding fit's first spacing slider, the output of second motor is connected with the heating rod that sets up directly over the third tensioning roller, the heating rod is heated after the circular telegram and is carried out preliminary stoving to the third tensioning roller, the both ends of heating rod all are provided with spacing axle, the output fixed connection of spacing axle and second motor, the epaxial rotation of spacing is connected with the stopper, stopper and rectangular channel spacing slip setting.
Further, the framework inner wall both sides of rectangle frame all are provided with drive structure, drive structure is including installing the second pneumatic cylinder at rectangle frame inner wall, the top of second pneumatic cylinder body is fixed with accepts the frame, the output of second pneumatic cylinder is fixed with the connecting rod, the connecting rod rotates with the fixed block of accepting frame upper end one side to be connected, be provided with the lifter that runs through and accept the frame between fixed block and the second pneumatic cylinder, the lateral wall that the lifter is close to the top is provided with two gag lever posts, the connecting rod sets up between two gag lever posts, the bottom of lifter is provided with lifting bottom plate, lifting bottom plate's bottom one side is provided with spacing complex limiting plate with the spacing axle.
Further, barrier coating mechanism and first heat-seal coating mechanism set up the bottom in the rectangle backup pad of both sides respectively, barrier coating mechanism and first heat-seal coating mechanism all including fixing the bottom support of two parallel arrangement in rectangle backup pad bottom, the third motor is installed to the side of bottom support, the output of third motor is fixed with the lead screw, threaded connection has screw nut on the lead screw, be fixed with the connection bottom plate on the screw nut, the both sides of connection bottom plate all slide and are provided with the guide bar, the bottom of connection bottom plate is connected with the rotor plate through connecting the bottom pole rotation, the tip and the bottom support rotation of rotor plate are connected, the lateral wall of rotor plate is opened there is the spacing spout of second.
Further, be provided with between the rotating plate and hold the board, hold the one side tip of board and be provided with the second spacing slider with the spacing spout sliding fit of second, the both ends that hold the board with the rotating plate all are provided with the fixture block, hold the opposite side tip of board and be provided with the first coating roller of setting in PET membrane substrate top, first coating roller passes through outside motor drive, the surface of first coating roller is opened there is the pore, the inside of first coating roller is provided with barrier coating or first heat-seal coating for to coating barrier coating and first heat-seal coating.
Further, the second heat-seal coating mechanism comprises two symmetrically arranged supporting bottom plates fixed at the upper end of the bottom plate, a barrel body rotating on the bottom plate is arranged below the side of each supporting bottom plate, an inclined notch is formed in the side wall of each barrel body, a fourth motor is arranged in the middle of each supporting bottom plate, and the output end of each fourth motor is fixedly connected with each barrel body;
the top of barrel is provided with the support sill bar that runs through the support bottom plate, and the spheroid that supports sill bar bottom and breach tangentially set up, is provided with the second between the lateral wall that supports sill bar and be close to the top and scribbles the roller, and the second scribbles the roller and passes through outside motor drive, and the surface that the second scribbles the roller opens has the pore, and the inside that the second scribbles the roller sets up the second heat seal coating, and the second heat seal coating is the same with first heat seal coating material.
The invention has the beneficial effects that:
1. according to the invention, in the process of plating the aluminum oxide film, an evaporation boat is heated to enable an aluminum block to be melted on the evaporation boat and then evaporated to form aluminum vapor, then high-purity oxygen is introduced to react to generate aluminum oxide, the aluminum oxide film is plated on a PET film substrate to form an aluminum oxide film, the aluminum oxide film on the PET film substrate can be uniformly plated by driving a first linear electric cylinder and a second linear electric cylinder, no dead angle is ensured in plating, the height is adjusted by driving the first pneumatic cylinder, the plating thickness is adjusted, the evaporation angle of the aluminum vapor is adjusted by driving the first motor, the single area can be selectively plated, and the use selectivity is increased;
2. after coating, the PET film substrate passes through the vacuum chamber, the angle of the rotating plate is adjusted by driving the third motor, the contact degree of the first coating roller and the PET film substrate is adjusted, the external motor of the first coating roller is driven, the coated PET film substrate is coated with a barrier coating, the coated PET film substrate is dried by the heating rod and then is coated with the first heat-seal coating, the height of the second coating roller is adjusted by tangential contact between the ball and the notch by driving the fourth motor, the contact degree of the second coating roller and the PET film substrate is adjusted, the external motor of the second coating roller is driven, the bottom of the PET film substrate is coated with the second heat-seal coating, and the PET film substrate is buckled in a ring manner, so that the working efficiency is improved;
3. when the invention is used for preliminary drying, the second pneumatic cylinder is driven, the connecting rod rotates to drive the lifting bottom plate and the limiting plate to move up and down, and the heating rod can be driven to move up and down, so that the heights of the heating rod and the PET film base material are adjusted, and the drying degree is adjusted.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described, and it will be obvious to those skilled in the art that other drawings can be obtained according to these drawings without inventive effort;
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of a PET film substrate of the present invention;
FIG. 3 is a schematic view of a horizontal drive mechanism and a coating mechanism of the present invention;
FIG. 4 is a schematic view of a coating mechanism according to the present invention;
FIG. 5 is a schematic view of a support frame and drive structure of the present invention;
FIG. 6 is a schematic view of a support frame of the present invention;
FIG. 7 is a schematic view of the internal cross-section of the support frame of the present invention;
FIG. 8 is a schematic diagram of a drive configuration of the present invention;
FIG. 9 is a schematic diagram of a drive configuration of the present invention;
FIG. 10 is a schematic view of a barrier coating application mechanism and a first heat seal coating application mechanism of the present invention;
FIG. 11 is a schematic view of the drive portion of the barrier coating mechanism of the present invention;
FIG. 12 is a schematic view of a first applicator roll configuration of the present invention;
FIG. 13 is a schematic view of a second heat seal coating application mechanism of the present invention;
fig. 14 is a schematic view of the driving portion of the second heat-seal coating mechanism of the present invention.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The transparent high-barrier aluminum oxide film comprises a PET film substrate, wherein an aluminum oxide plating layer, a barrier coating and a heat seal coating are sequentially compounded on one side surface of the PET film substrate, and a heat seal coating is compounded on the other side surface of the PET film substrate;
the preparation method of the aluminum oxide film comprises the following steps:
1. drawing the PET film substrate coiled film into a vacuum chamber through two conveying devices;
2. the conveying device and the winding device are driven to enable the PET film base material to horizontally move, and the upper surface of the PET film base material on the conveying device faces to the right upper side;
3. after the PET film substrate reaches the vacuum chamber, the evaporation boat is heated to enable the aluminum blocks to be melted on the evaporation boat and then evaporated to form aluminum vapor, then high-purity oxygen is introduced to react to generate aluminum oxide, and the aluminum oxide is plated on the PET film substrate to form an aluminum oxide coating;
4. after the aluminum oxide coating is formed, coating a barrier coating on the surface of the aluminum oxide coating, heating by a heating rod for preliminary drying, coating a heat-seal coating on the surface of the barrier coating and the bottom surface of the PET film substrate, and drying to form the heat-seal coating;
5. and finally, rolling by using a rolling device to obtain a transparent high-barrier aluminum oxide film finished product.
The preparation device of the transparent high-barrier alumina film is shown in fig. 1, and comprises a conveying device 2 and a winding device 3 in the preparation method, wherein the conveying device 2 and the winding device 3 are both fixed on a bottom plate 1, a PET film substrate 20 is wound between the conveying device 2 and the winding device 3, a vacuum chamber is arranged above one side of the bottom plate 1 close to the conveying device 2, and the other side of the bottom plate 1 far away from the conveying device 2 is a common outdoor;
a horizontal driving mechanism 4 is arranged above the conveying device 2, a coating mechanism 5 is arranged at the bottom end of the horizontal driving mechanism 4, and the coating mechanism 5 is arranged right above the PET film base material 20;
a supporting frame 6 is arranged between the conveying device 2 and the winding device 3, a heating rod 65 with adjustable height is arranged in the supporting frame 6, a barrier coating mechanism 8 and a first heat-seal coating mechanism 9 are respectively arranged at two ends of the supporting frame 6, and the barrier coating mechanism 8 and the first heat-seal coating mechanism 9 have the same structure and are all arranged above the PET film base material 20;
a second heat-seal coating mechanism 10 is arranged between the supporting frame 6 and the winding device 3, and the second heat-seal coating mechanism 10 is arranged below the PET film base material 20. After coating, the PET film substrate 20 passes through a vacuum chamber and then enters the support frame 6.
As shown in fig. 3, the horizontal driving mechanism 4 comprises two parallel first linear electric cylinders 41 and two parallel second linear electric cylinders 42 which are fixed above the bottom plate 1, and the first linear electric cylinders 41 and the second linear electric cylinders 42 are connected end to form a rectangular frame body;
the first linear electric cylinder 41 comprises a first linear guide rail 411 and a first electric cylinder sliding block 412 slidably arranged on the first linear guide rail 411, wherein the inner ends of the first electric cylinder sliding blocks 412 are respectively provided with a first connecting plate 43, and a first connecting rod 431 is fixed between the two first connecting plates 43;
the second linear electric cylinder 42 includes a second linear guide 421 and a second electric cylinder slider 422 slidably disposed on the second linear guide 421, the inner ends of the second electric cylinder sliders 422 are both provided with second connection plates 44, a second connection rod 441 is fixed between the two second connection plates 44, a moving plate 45 is disposed on the second connection rod 441 and the first connection rod 431, and the moving plate 45 is horizontally slidably disposed on the second connection rod 441 and the first connection rod 431.
As shown in fig. 4, the film plating mechanism 5 includes a first pneumatic cylinder 51 fixed at the bottom end of the moving plate 45, a rotating plate 52 is provided below the first pneumatic cylinder 51, a first pneumatic rod 511 on the first pneumatic cylinder 51 is rotationally connected with a revolute pair 521 at the upper end of the rotating plate 52, a first supporting block 53 is provided on the side wall of the cylinder body of the first pneumatic cylinder 51, a second supporting block 532 is connected below the first supporting block 53 through a telescopic rod 531, a first motor 54 is installed at the side end of the second supporting block 532, and the output end of the first motor 54 is fixedly connected with the rotating plate 52. The shaft hole formed on the bottom side wall of the first air pressure lever 511 is a waist-shaped hole, and the rotating plate 52 can rotate around the output end of the first motor 54.
The side end of the rotating plate 52 is provided with an evaporation boat 55, an evaporation cavity 551 with a large upper end opening and a small lower end opening is formed in the evaporation boat 55, an aluminum block 56 is arranged in the evaporation cavity 551 in a matched mode, a cover plate is arranged at the upper end of the aluminum block 56 in a sealing mode, a heating pipe 552 is arranged at the side end of the evaporation boat 55, and a heating source 553 is arranged at the middle position of the heating pipe 552. After the heating source 553 is electrified, the evaporation boat 55 is heated to enable the aluminum blocks to be melted on the evaporation boat 55 and then evaporated to form aluminum vapor, then high-purity oxygen is introduced to react to generate aluminum oxide, and the aluminum oxide is plated on the PET film base material 20 to form an aluminum oxide coating.
By driving the first and second linear electric cylinders 41 and 42, the aluminum oxide plating layer on the PET film base material 20 can be plated uniformly, and no dead angle of plating is ensured. By driving the first pneumatic cylinder 51 to adjust the height and thus the thickness of the plating shot, by driving the first motor 54 to adjust the evaporation angle of the aluminum vapor, the plating can be performed selectively on a single area, increasing the use selectivity.
As shown in fig. 5-8, the support frame 6 includes two symmetrically arranged support side plates 61 fixed at the upper end of the bottom plate 1, a first tensioning roller 611, a second tensioning roller 612 and a third tensioning roller 613 are rotatably connected between the support side plates 61, the third tensioning roller 613 is arranged above the first tensioning roller 611 and the second tensioning roller 612, after the PET film substrate 20 passes through the vacuum chamber, the PET film substrate is sequentially wound at the lower end of the first tensioning roller 611, the upper end of the second tensioning roller 612 and the lower end of the third tensioning roller 613, and then passes through the support frame 6, and the first tensioning roller 611, the second tensioning roller 612 and the third tensioning roller 613 play a role in tensioning.
A rectangular frame 62 is fixed at the upper end of the supporting side plate 61, rectangular supporting plates 621 are arranged at two ends of one side of the rectangular frame 62, rectangular grooves 622 are formed at two ends of the other side of the rectangular frame 62, and first limit sliding grooves 623 are formed at the bottom ends of the rectangular grooves 622;
the side of rectangle groove 622 is provided with second motor 64, the base side of second motor 64 is provided with and first spacing slide 623 sliding fit's first spacing slider 641, the output of second motor 64 is connected with the heating rod 65 of setting directly over third tensioning roller 613, heating rod 65 circular telegram back generates heat and carries out preliminary stoving to third tensioning roller 613, the both ends of heating rod 65 all are provided with spacing axle 651, spacing axle 651 and the output fixed connection of second motor 64, rotate on the spacing axle 651 and be connected with stopper 652, stopper 652 and the spacing slip setting of rectangle groove 622.
As shown in fig. 9, driving structures 7 are disposed on two sides of the inner wall of the frame body of the rectangular frame 62, the driving structures 7 comprise a second pneumatic cylinder 71 mounted on the inner wall of the rectangular frame 62, a receiving frame 72 is fixed at the top end of the cylinder body of the second pneumatic cylinder 71, a connecting rod 73 is fixed at the output end of the second pneumatic cylinder 71, the connecting rod 73 is rotatably connected with a fixing block 74 on one side of the upper end of the receiving frame 72, a lifting rod 75 penetrating through the receiving frame 72 is disposed between the fixing block 74 and the second pneumatic cylinder 71, two limiting rods 751 are disposed on the side wall, close to the top end, of the lifting rod 75, the connecting rod 73 is disposed between the two limiting rods 751, a lifting bottom plate 76 is disposed at the bottom end of the lifting rod 75, and a limiting plate 761 in limiting fit with a limiting shaft 651 is disposed on one side of the bottom end of the lifting bottom plate 76.
By driving the second pneumatic cylinder 71, the connecting rod 73 rotates to drive the lifting bottom plate 76 and the limiting plate 761 to move up and down, so that the heating rod 65 can be driven to move up and down, and the heights of the heating rod 65 and the PET film base material 20 can be further adjusted, and the drying degree can be adjusted.
As shown in fig. 10 to 12, the barrier coating mechanism 8 and the first heat-seal coating mechanism 9 are respectively disposed at the bottom ends of the rectangular support plates 621 on both sides, the barrier coating mechanism 8 and the first heat-seal coating mechanism 9 each include two bottom brackets 81 disposed in parallel and fixed at the bottom ends of the rectangular support plates 621, a third motor 82 is mounted at the side ends of the bottom brackets 81, a lead screw 821 is fixed at the output end of the third motor 82, a lead screw nut 822 is screwed onto the lead screw 821, a connection bottom plate 84 is fixed onto the lead screw nut 822, guide rods 82 are slidably disposed on both sides of the connection bottom plate 84, the bottom ends of the connection bottom plate 84 are rotatably connected with a rotating plate 85 through connection bottom rods 841, and the end parts of the rotating plate 85 are rotatably connected with the bottom brackets 81, and the outer side walls of the rotating plate 85 are provided with second limit sliding grooves 851.
Be provided with between the rotating plate 85 and accept board 86, one side tip of accepting board 86 is provided with the second spacing slider 861 with the spacing spout 851 sliding fit of second, the both ends of accepting board 86 are all provided with fixture block 87 to the sum of rotating plate 85, the opposite side tip of accepting board 86 is provided with the first coating roller 88 that sets up in PET membrane substrate 20 top, first coating roller 88 passes through outside motor drive, open the surface of first coating roller 88 has the pore, the inside of first coating roller 88 is provided with barrier coating or first heat seal coating, be used for to coating barrier coating and first heat seal coating, during the use, first coating roller 88 slowly rotates, the coating that oozes from the pore evenly coats on PET membrane substrate 20.
After coating, the PET film substrate 20 passes through the vacuum chamber, the angle of the rotating plate 85 is adjusted by driving the third motor 82, the contact degree between the first coating roller 88 and the PET film substrate 20 is adjusted, the barrier coating is coated on the coated PET film substrate 20 by driving the external motor of the first coating roller 88, and the first heat-seal coating is coated after the coated PET film substrate 20 is dried by the heating rod.
As shown in fig. 13-14, the second heat-seal coating mechanism 10 comprises two symmetrically arranged supporting base plates 101 fixed at the upper end of the base plate 1, a cylinder 102 rotating on the base plate 1 is arranged below the side of each supporting base plate 101, an inclined notch 1021 is formed in the side wall of each cylinder 102, a fourth motor 103 is arranged in the middle of each supporting base plate 101, and the output end of each fourth motor 103 is fixedly connected with each cylinder 102;
the top of barrel 102 is provided with the support sill bar 104 that runs through supporting baseplate 101, and spheroid 1041 and breach 1021 that the bottom of support sill bar 104 set up are tangent to be set up, are provided with second coating roller 105 between the lateral wall that supporting sill bar 104 is close to the top, and second coating roller 105 passes through outside motor drive, and the surface of second coating roller 105 opens has the pore, and the inside of second coating roller 105 sets up the second heat seal coating, and second heat seal coating is the same with first heat seal coating material.
The height of the second coating roller 105 is adjusted by driving the fourth motor 103, the spheres 1041 and the notch 1021 in a tangential manner, the contact degree of the second coating roller 105 and the PET film base material 20 is adjusted, the second heat-sealing coating is coated on the bottom of the PET film base material 20 by driving the external motor of the second coating roller 105, when the PET film base material is used, the second coating roller 105 slowly rotates, the coating exuding from the fine holes is uniformly coated on the PET film base material 20, and the lengths of the second coating roller 105 and the first coating roller 88 are larger than or equal to the width of the PET film base material 20.
When the high-barrier aluminum oxide film is used, the PET film substrate 20 firstly enters the vacuum chamber, passes through the vacuum chamber after being subjected to film coating operation, is coated with a barrier coating through the barrier coating mechanism 8, is tensioned and primarily dried, is coated with heat-seal coatings at the upper end and the lower end of the PET film substrate 20, is finally dried through the external drying structure, and is finally wound by the winding device 3, so that a transparent high-barrier aluminum oxide film finished product is obtained.
The foregoing has shown and described the basic principles, principal features and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which is defined in the appended claims.

Claims (5)

1. The preparation device of the transparent high-barrier aluminum oxide film is characterized in that the aluminum oxide film comprises a PET film substrate, wherein an aluminum oxide plating layer, a barrier coating and a heat seal coating are sequentially compounded on one side surface of the PET film substrate, and a heat seal coating is compounded on the other side surface of the PET film substrate;
the preparation method of the aluminum oxide film comprises the following steps:
1. drawing the PET film substrate coiled film into a vacuum chamber through two conveying devices;
2. the conveying device and the winding device are driven to enable the PET film base material to horizontally move, and the upper surface of the PET film base material on the conveying device faces to the right upper side;
3. after the PET film substrate reaches the vacuum chamber, the evaporation boat is heated to enable the aluminum blocks to be melted on the evaporation boat and then evaporated to form aluminum vapor, then high-purity oxygen is introduced to react to generate aluminum oxide, and the aluminum oxide is plated on the PET film substrate to form an aluminum oxide coating;
4. after the aluminum oxide coating is formed, coating a barrier coating on the surface of the aluminum oxide coating, heating by a heating rod for preliminary drying, coating a heat-seal coating on the surface of the barrier coating and the bottom surface of the PET film substrate, and drying to form the heat-seal coating;
5. finally, rolling by using a rolling device to obtain a transparent high-barrier aluminum oxide film finished product;
the preparation device of the aluminum oxide film comprises a conveying device (2) and a winding device (3), wherein the conveying device (2) and the winding device (3) are both fixed on a bottom plate (1), a PET film substrate (20) is wound between the conveying device (2) and the winding device (3), a vacuum chamber is arranged above one side, close to the conveying device (2), of the bottom plate (1), and the other side, far away from the conveying device (2), of the bottom plate (1) is a common outdoor;
a horizontal driving mechanism (4) is arranged above the conveying device (2), a coating mechanism (5) is arranged at the bottom end of the horizontal driving mechanism (4), and the coating mechanism (5) is arranged right above the PET film base material (20);
a supporting frame (6) is arranged between the conveying device (2) and the winding device (3), a heating rod (65) with adjustable height is arranged in the supporting frame (6), a barrier coating mechanism (8) and a first heat sealing coating mechanism (9) are respectively arranged at two ends of the supporting frame (6), and the barrier coating mechanism (8) and the first heat sealing coating mechanism (9) are identical in structure and are arranged above the PET film base material (20);
a second heat-seal coating mechanism (10) is arranged between the supporting frame (6) and the winding device (3), and the second heat-seal coating mechanism (10) is arranged below the PET film base material (20);
the horizontal driving mechanism (4) comprises two parallel first linear electric cylinders (41) and two parallel second linear electric cylinders (42) which are fixed above the bottom plate (1), and the first linear electric cylinders (41) and the second linear electric cylinders (42) are connected end to form a rectangular frame body;
the first linear electric cylinder (41) comprises a first linear guide rail (411) and a first electric cylinder sliding block (412) which is arranged on the first linear guide rail (411) in a sliding manner, first connecting plates (43) are arranged at the inner side ends of the first electric cylinder sliding block (412), and a first connecting rod (431) is fixed between the two first connecting plates (43);
the second linear electric cylinder (42) comprises a second linear guide rail (421) and a second electric cylinder sliding block (422) which is arranged on the second linear guide rail (421) in a sliding manner, second connecting plates (44) are arranged at the inner side ends of the second electric cylinder sliding block (422), a second connecting rod (441) is fixed between the two second connecting plates (44), a movable plate (45) is arranged on the second connecting rod (441) and the first connecting rod (431), and the movable plate (45) is arranged on the second connecting rod (441) and the first connecting rod (431) in a horizontal sliding manner;
the film plating mechanism (5) comprises a first pneumatic cylinder (51) fixed at the bottom end of the movable plate (45), a rotating plate (52) is arranged below the first pneumatic cylinder (51), a first pneumatic rod (511) on the first pneumatic cylinder (51) is rotationally connected with a revolute pair (521) at the upper end of the rotating plate (52), a first supporting block (53) is arranged on the side wall of the cylinder body of the first pneumatic cylinder (51), a second supporting block (532) is connected below the first supporting block (53) through a telescopic rod (531), a first motor (54) is arranged at the side end of the second supporting block (532), and the output end of the first motor (54) is fixedly connected with the rotating plate (52);
an evaporation boat (55) is arranged at the side end of the rotating plate (52), an evaporation cavity (551) with a large upper end opening and a small lower end opening is formed in the evaporation boat (55), an aluminum block (56) which is matched with the evaporation cavity (551) is arranged in the evaporation cavity (551), a cover plate is arranged at the upper end of the aluminum block (56) in a sealing mode, a heating pipe (552) is arranged at the side end of the evaporation boat (55), and a heating source (553) is arranged at the middle position of the heating pipe (552);
the second heat-seal coating mechanism (10) comprises two symmetrically arranged supporting bottom plates (101) fixed at the upper end of the bottom plate (1), a barrel (102) rotating on the bottom plate (1) is arranged below the side of each supporting bottom plate (101), an inclined notch (1021) is formed in the side wall of each barrel (102), a fourth motor (103) is arranged in the middle of each supporting bottom plate (101), and the output end of each fourth motor (103) is fixedly connected with each barrel (102);
the utility model discloses a heat-seal coating device, including barrel (102), bottom plate (101) and heat-seal coating material, barrel (102) top is provided with support sill bar (104) that runs through, spheroid (1041) and breach (1021) that support sill bar (104) bottom set up are tangent to be set up, be provided with second coating roller (105) between the lateral wall that support sill bar (104) is close to the top, second coating roller (105) are through outside motor drive, the surface of second coating roller (105) is opened there is the pore, the inside of second coating roller (105) sets up the second heat-seal coating, the second heat-seal coating is the same with first heat-seal coating material.
2. The preparation device of the transparent high-barrier aluminum oxide film according to claim 1, wherein the supporting frame (6) comprises two symmetrically arranged supporting side plates (61) fixed at the upper end of the bottom plate (1), a first tensioning roller (611), a second tensioning roller (612) and a third tensioning roller (613) are rotatably connected between the supporting side plates (61), the third tensioning roller (613) is arranged above the first tensioning roller (611) and the second tensioning roller (612), the PET film base material (20) is wound at the lower end of the first tensioning roller (611), the upper end of the second tensioning roller (612) and the lower end of the third tensioning roller (613) in sequence after being penetrated out of the vacuum chamber, the upper end of the supporting side plate (61) is fixedly provided with a rectangular frame (62), one side two ends of the rectangular frame (62) are respectively provided with a rectangular supporting plate (621), the other side two ends of the rectangular frame (62) are respectively provided with a rectangular groove (622), and the bottom end of the rectangular groove (622) is provided with a first limiting chute (623);
the side of rectangle groove (622) is provided with second motor (64), the base side of second motor (64) is provided with first spacing slider (641) with first spacing spout (623) sliding fit, the output of second motor (64) is connected with and sets up heating rod (65) directly over third tensioning roller (613), heating rod (65) circular telegram back generates heat and carries out preliminary stoving to third tensioning roller (613), both ends of heating rod (65) all are provided with spacing axle (651), the output fixed connection of spacing axle (651) and second motor (64), rotate on spacing axle (651) and be connected with stopper (652), stopper (652) and the spacing slip setting of rectangle groove (622).
3. The preparation device of the transparent high-barrier aluminum oxide film according to claim 2, wherein driving structures (7) are arranged on two sides of the inner wall of the frame body of the rectangular frame (62), each driving structure (7) comprises a second pneumatic cylinder (71) arranged on the inner wall of the rectangular frame (62), a supporting frame (72) is fixed at the top end of the cylinder body of each second pneumatic cylinder (71), a connecting rod (73) is fixed at the output end of each second pneumatic cylinder (71), the connecting rod (73) is rotationally connected with a fixing block (74) on one side of the upper end of the supporting frame (72), lifting rods (75) penetrating through the supporting frame (72) are arranged between the fixing blocks (74) and the second pneumatic cylinders (71), two limiting rods (751) are arranged on the side wall, close to the top end, of each lifting rod (73) is arranged between the two limiting rods (751), a lifting bottom plate (76) is arranged at the bottom end of each lifting rod (75), and a limiting plate (761) in limiting fit with the limiting shaft (651) is arranged on one side of the bottom end of each lifting bottom plate (76).
4. A device for preparing a transparent high barrier alumina film according to claim 3, wherein, barrier coating mechanism (8) and first heat seal coating mechanism (9) set up the bottom of rectangle backup pad (621) in both sides respectively, barrier coating mechanism (8) and first heat seal coating mechanism (9) all including fixing bottom support (81) of two parallel arrangement in rectangle backup pad (621) bottom, third motor (82) are installed to the side of bottom support (81), the output of third motor (82) is fixed with lead screw (821), threaded connection has lead screw nut (822) on lead screw (821), be fixed with connection bottom plate (84) on lead screw nut (822), both sides of connection bottom plate (84) are all provided with guide bar (82) in the slip, the bottom of connection bottom plate (84) is connected with rotating plate (85) through connection bottom bar (841) rotation, the tip and the bottom support (81) of rotating plate (85) rotate and are connected, the lateral wall of rotating plate (85) opens has second spacing spout (851).
5. The device for preparing the transparent high-barrier aluminum oxide film according to claim 4, wherein a bearing plate (86) is arranged between the rotating plates (85), one side end part of the bearing plate (86) is provided with a second limit sliding block (861) which is in sliding fit with the second limit sliding groove (851), two ends of the rotating plates (85) and the bearing plate (86) are both provided with clamping blocks (87), the other side end part of the bearing plate (86) is provided with a first coating roller (88) arranged above the PET film substrate (20), the first coating roller (88) is driven by an external motor, the outer surface of the first coating roller (88) is provided with pores, and the inside of the first coating roller (88) is provided with a barrier coating or a first heat-sealing coating for coating the barrier coating and the first heat-sealing coating.
CN202110825967.3A 2021-07-21 2021-07-21 Preparation method and device of transparent high-barrier alumina film Active CN113564535B (en)

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