CN112877005A - PE protective film for pasting polaroid - Google Patents

PE protective film for pasting polaroid Download PDF

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Publication number
CN112877005A
CN112877005A CN202110053494.XA CN202110053494A CN112877005A CN 112877005 A CN112877005 A CN 112877005A CN 202110053494 A CN202110053494 A CN 202110053494A CN 112877005 A CN112877005 A CN 112877005A
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Prior art keywords
protective film
moving block
layer
air blower
hot air
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Granted
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CN202110053494.XA
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Chinese (zh)
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CN112877005B (en
Inventor
费志豪
何亮
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Wuhu Xiaxin New Material Technology Co ltd
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Wuhu Xiaxin New Material Technology Co ltd
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    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09JADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J7/00Adhesives in the form of films or foils
    • C09J7/20Adhesives in the form of films or foils characterised by their carriers
    • C09J7/29Laminated material
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09JADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J5/00Adhesive processes in general; Adhesive processes not provided for elsewhere, e.g. relating to primers
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09JADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J7/00Adhesives in the form of films or foils
    • C09J7/50Adhesives in the form of films or foils characterised by a primer layer between the carrier and the adhesive
    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B1/00Optical elements characterised by the material of which they are made; Optical coatings for optical elements
    • G02B1/10Optical coatings produced by application to, or surface treatment of, optical elements
    • G02B1/14Protective coatings, e.g. hard coatings
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09JADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J2423/00Presence of polyolefin
    • C09J2423/04Presence of homo or copolymers of ethene
    • C09J2423/046Presence of homo or copolymers of ethene in the substrate
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09JADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J2427/00Presence of halogenated polymer
    • C09J2427/006Presence of halogenated polymer in the substrate
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09JADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J2467/00Presence of polyester
    • C09J2467/006Presence of polyester in the substrate
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02WCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00Technologies for solid waste management
    • Y02W30/50Reuse, recycling or recovery technologies
    • Y02W30/62Plastics recycling; Rubber recycling

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Polarising Elements (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)

Abstract

The present invention relates to a PE protective film for attaching a polarizer. The PE protective film with multiple layers is used, the technical problem that the protective film needs to be manually uncovered in actual use is solved, when the protective film is used, the clamp clamps the ear part and blows hot air at 75-100 ℃ to the PE protective film, so that the PE protective film is curled towards the direction of the heat shrinkage layer, and as the bonding layer is heated to 75-100 ℃, the soft bonding effect is reduced, and the whole PE protective film is curled into a roll and automatically separated from the surface of the polaroid. The uncovering speed is high and the risk of pollution is avoided; the curled protective film can be reused, and energy conservation and emission reduction are greatly facilitated.

Description

PE protective film for pasting polaroid
Technical Field
The invention relates to the field of material protective films, in particular to a PE protective film for sticking a polaroid.
Background
In the manufacturing process of the display device, there is a process of removing the polarizer protective film, which requires an operator to remove the polarizer protective film on the polarizer after attaching the polarizer to the display panel. In the prior art, the protective film is generally torn off manually, but this method is inefficient on the one hand and also risks introducing contamination on the other hand.
Application number CN201620769203.1 discloses a polarizer protective film removing device and a polarizer protective film removing tape, where the polarizer protective film removing tape includes a hollow area and a non-hollow area located around the hollow area, and the area of the hollow area is greater than or equal to the area of the display panel with the polarizer protective film. The problem of the relatively poor reliability of polaroid protection film remove device removal polaroid protection film is solved. However, the operation is complicated when the film is peeled off, and the stability is not good.
In addition, the prior art is generally a disposable film layer, which causes great waste and environmental pollution. If a protective film that can be reused could be developed, significant cost savings and pollution reductions would be possible.
Disclosure of Invention
In view of the above, there is provided a PE (polyethylene) protective film for attaching a polarizer, including an adhesive layer and a bulk layer;
the adhesive also comprises a thermal shrinkage layer and an adhesion reinforcing layer; arranging all layers according to the sequence of the thermal shrinkage layer, the body layer, the bonding reinforcing layer and the bonding layer from top to bottom to obtain a PE protective film for sticking the polaroid;
the heat shrinkable layer becomes soft when heated to 75-100 ℃ and shrinks under the condition of no external force, so that the whole PE protective film is curled towards the heat shrinkable layer;
the body layer is made of PE material, is stable when heated to 75-100 ℃, and cannot deform automatically;
the bonding reinforcing layer is used for reinforcing the bonding strength of the body layer and the bonding layer, and the bonding strength of the body layer and the bonding layer is kept to be larger than the bonding strength of the bonding layer and the polarizer when the body layer and the bonding layer are heated to 75-100 ℃;
the bonding layer is used for being bonded to the polaroid, so that the PE protective film provides protection for the polaroid, and the soft bonding effect of the bonding layer is reduced when the bonding layer is heated to 75-100 ℃;
the area of the PE protective film is larger than that of the polaroid, and an ear part is protruded from one end of the polaroid; when the PE protective film needs to be uncovered, the clamp clamps the ear part and blows hot air at 75-100 ℃ to the PE protective film, so that the PE protective film is curled towards the direction of the heat shrinkage layer, and the whole PE protective film is curled into a roll and automatically separated from the surface of the polaroid because the soft bonding effect is reduced when the bonding layer is heated to 75-100 ℃.
The heat-shrinkable layer is a heat-shrinkable polyester film, the body layer is high-temperature-resistant PE, polytetrafluoroethylene is doped during production, and deformation cannot occur at the working temperature of 250 ℃; the bonding reinforcing layer is general super-adhesive type adhesive or general strong-adhesive type adhesive, and the bonding layer is general re-uncovering type adhesive or fiber re-uncovering type adhesive.
The ear part is a conductive part, and electrodes which are mutually conducted are arranged on the upper surface and the lower surface of the ear part.
A film uncovering device is used for uncovering the PE protective film;
the film uncovering device comprises a first supporting rod, a first fixed block, a first moving block, a first hot air blower and a first fixed groove; the first supporting rod is arranged on one side of the first fixing groove, and the first fixing groove is used for placing a polaroid; the first supporting rod is provided with a first fixed block, a first moving block and a first air heater; the first air heater is arranged at the top of the first supporting rod, and the blowing direction of the first air heater faces the first fixing groove;
the first fixed block and the first moving block are arranged in the middle of the first supporting rod and used for clamping the ear part, the first fixed block is fixed, and the first moving block can move up and down to clamp and release the ear part; the first fixed block and the first moving block are both provided with electrodes, when the first moving block moves downwards and clamps the ear part, the first fixed block, the ear part and the first moving block are conducted, so that a power supply of the first air heater is started, and the first air heater starts to blow air; when the first moving block moves to release the ear part, the first fixed block, the ear part and the first moving block are disconnected, and the first air heater is turned off.
The temperature of hot air blown by the first hot air blower is 75-100 ℃.
A film sticking device for sticking the PE protective film;
the film uncovering device comprises a second supporting rod, a third supporting rod, a lead screw, a second fixed block, a second moving block, a third moving block, a second fixed groove and a scraper; the second supporting rod and the third supporting rod are respectively arranged on two sides of the fixed groove, a lead screw is connected between the tops of the second supporting rod and the third supporting rod, and a third moving block is mounted on the lead screw; the second fixing groove is used for placing a polaroid;
a second fixed block and a second moving block are arranged on the second supporting rod; the second fixed block and the second moving block are arranged in the middle of the second supporting rod and used for clamping the ear part, the second fixed block is fixed, and the second moving block can move up and down to clamp and release the ear part; the second fixed block and the second moving block are both provided with electrodes, when the second moving block moves downwards and clamps the ear part, the second fixed block, the ear part and the second moving block are conducted, and the third moving block can horizontally move under the control of the controller;
when the second moving block moves to release the ear part, the second fixed block, the ear part and the second moving block are disconnected, and the third moving block loses power supply and cannot move;
the third moving block is provided with a scraper blade, and the scraper blade is used for scraping off the curled PE protective film and flattening the PE protective film again; the scraper is provided with an air cooler and a second hot air blower; the air cooler and the second hot air blower are both provided with downward openings, and when the PE protective film is scraped, the hot air blower is arranged in front of the movement direction of the scraper and is used for heating the PE protective film, so that the PE protective film is integrally softened, and the bonding layer is softened; the air cooler is arranged behind the scraper in the movement direction and used for cooling the expanded PE protective film so as to shape the PE protective film.
The opening of the second hot air blower was lower than the opening of the cold air blower and the diameter of the opening of the second hot air blower was below 1/4 of the diameter of the opening of the cold air blower.
The controller is provided with a handle for controlling the opening and closing of the third moving block and controlling the moving direction;
the controller also controls the opening and closing of the second hot air blower and the cold air blower.
The tip of the scraper blade is arranged obliquely, and the oblique direction is towards the front of the movement direction of scraping the PE protective film.
The invention has the beneficial effects that:
the invention uses the multilayer PE protective film, solves the technical problem that the protective film needs to be manually uncovered in actual use, when in use, the clamp clamps the ear part, and blows hot air with the temperature of 75-100 ℃ to the PE protective film, so that the PE protective film is curled towards the direction of the heat shrinkage layer, and as the bonding layer is heated to the temperature of 75-100 ℃, the soft bonding effect is reduced, and the whole PE protective film is curled into a roll and automatically separated from the surface of the polaroid. The uncovering speed is high and the risk of pollution is avoided; the curled protective film can be reused, thereby greatly contributing to energy conservation and emission reduction;
the film removing device clamps the film and then blows air when the film is removed, so that the curling direction of the control film can be ensured to be curled from one end to the other end, and the problem that the protection film cannot be fixed due to clamping errors is avoided; also because set up corresponding clamping device when the pad pasting, can guarantee the stability of pad pasting, successively carry out the blowing of hot-blast and cold wind simultaneously, hot-blast make the tie coat soften during the heating, increase bonding effect, and help the design during cold wind, can guarantee the effect of pad pasting.
Drawings
The accompanying drawings, which are included to provide a further understanding of the disclosed subject matter, are incorporated in and constitute a part of this specification. The drawings illustrate the implementations of the disclosed subject matter and, together with the detailed description, serve to explain the principles of implementations of the disclosed subject matter. No attempt is made to show structural details of the disclosed subject matter in more detail than is necessary for a fundamental understanding of the disclosed subject matter and various modes of practicing the same.
FIG. 1 is a schematic structural diagram of a PE protective film according to the present invention;
FIG. 2 is a schematic structural diagram of a film removing device according to the present invention;
fig. 3 is a schematic view showing the construction of the application device of the present invention.
Detailed Description
The advantages, features and methods of accomplishing the same will become apparent from the drawings and the detailed description that follows.
Example 1:
referring to fig. 1, a PE protective film for attaching a polarizer includes an adhesive layer 14 and a body layer 12;
also comprises a heat shrinkable layer 11 and an adhesion reinforcing layer 13; arranging all layers from top to bottom according to the sequence of the thermal shrinkage layer 11, the body layer 12, the bonding reinforcing layer 13 and the bonding layer 14 to obtain a PE protective film for attaching the polarizer;
the heat-shrinkable layer 11 becomes soft when heated to 75-100 ℃ and shrinks without external force, thereby causing the entire PE protective film to curl toward the heat-shrinkable layer 11;
the body layer 12 is made of PE material, is stable when heated to 75-100 ℃, and cannot deform automatically;
the adhesion reinforcing layer 13 is used for reinforcing the bonding strength of the body layer 12 and the adhesive layer 14, and the bonding strength of the body layer 12 and the adhesive layer 14 is kept larger than that of the adhesive layer 14 and the polarizer when the body layer 12 and the adhesive layer 14 are heated to 75-100 ℃;
the bonding layer 14 is used for being bonded to the polarizer, so that the PE protective film provides protection for the polarizer, and the soft bonding effect of the bonding layer 14 is reduced when the bonding layer is heated to 75-100 ℃;
the area of the PE protective film is larger than that of the polaroid, and an ear part 15 is protruded from one end of the polaroid; when the PE protective film needs to be uncovered, the clamp clamps the ear part 15, hot air at 75-100 ℃ is blown to the PE protective film, so that the PE protective film is curled towards the direction of the heat shrinkable layer 11, and the soft bonding effect is reduced when the bonding layer 14 is heated to 75-100 ℃, so that the whole PE protective film is curled into a roll and automatically separated from the surface of the polaroid.
The heat-shrinkable layer 11 is a heat-shrinkable polyester film, the body layer 12 is high-temperature-resistant PE, polytetrafluoroethylene is doped during production, and deformation cannot occur at the working temperature of 250 ℃; the bonding reinforcing layer 13 is a general super-adhesive or a general strong-adhesive, and the bonding layer is a general re-uncovering adhesive or a fiber re-uncovering adhesive.
The ear member 15 is a conductive member, and electrodes that are electrically connected to each other are provided on the upper surface and the lower surface thereof.
Example 2:
with reference to fig. 2, a film removing device is used to remove the PE protective film;
the film uncovering device comprises a first supporting rod 21, a first fixed block 22, a first moving block 23, a first hot air blower 24 and a first fixed groove 25; the first support rod 21 is arranged at one side of the first fixing groove 25, and the first fixing groove 25 is used for placing the polarizer; the first supporting rod 21 is provided with a first fixed block 22, a first moving block 23 and a first hot air blower 24; the first hot air blower 24 is arranged at the top of the first supporting rod 21, and the blowing direction of the first hot air blower 24 faces the first fixing groove 25;
the first fixed block 22 and the first moving block 23 are arranged in the middle of the first supporting rod 21 and used for clamping the ear part 15, the first fixed block 22 is fixed, and the first moving block 23 can move up and down to clamp and release the ear part 15; the first fixed block 22 and the first moving block 23 are both provided with electrodes, when the first moving block 23 moves downwards and clamps the lug piece 15, the first fixed block 22, the lug piece 15 and the first moving block 23 are conducted, so that a power supply of the first air heater 24 is turned on, and the first air heater 24 starts to blow air; when the first moving block 23 moves to release the ear member 15, the first fixed block 22, the ear member 15 and the first moving block 23 are disconnected, and the first hot air blower 24 is turned off.
The temperature of the hot air blown by the first air heater 24 is 75-100 ℃.
Example 3:
with reference to fig. 3, a film application device for applying the PE protective film;
the film uncovering device comprises a second support rod 31, a third support rod 32, a lead screw 33, a second fixed block 34, a second moving block 35, a third moving block 36, a second fixed groove 37 and a scraper 38; the second support rod 31 and the third support rod 32 are respectively arranged at two sides of the fixed groove, a lead screw 33 is connected between the tops of the second support rod 31 and the third support rod 32, and a third moving block 36 is arranged on the lead screw 33; the second fixing groove 37 is used for placing the polarizer;
the second supporting rod 31 is provided with a second fixed block 34 and a second moving block 35; the second fixed block 34 and the second moving block 35 are arranged in the middle of the second supporting rod 31 and used for clamping the ear part 15, the second fixed block 34 is fixed, and the second moving block 35 can move up and down to clamp and release the ear part 15; the second fixed block 34 and the second moving block 35 are both provided with electrodes, when the second moving block 35 moves downwards and clamps the ear part 15, the second fixed block 34, the ear part 15 and the second moving block 35 are conducted, and the third moving block 36 can move horizontally under the control of the controller;
when the second moving block 35 moves to release the ear part 15, the second fixed block 34, the ear part 15 and the second moving block 35 are disconnected, and the third moving block 36 loses power supply and cannot move;
the third moving block 36 is provided with a scraper 38, and the scraper 38 is used for scraping off the curled PE protective film and flattening the film again; the scraper 38 is provided with a cold air blower 39 and a second hot air blower 40; the air cooler 39 and the second hot air blower 40 are both provided with downward openings, and when the PE protective film is scraped, the hot air blower is arranged in front of the movement direction of the scraper 38 and used for heating the PE protective film, so that the PE protective film is softened integrally, and the bonding layer 14 is softened; and the air cooler 39 is arranged behind the movement direction of the scraper 38 and used for cooling the unfolded PE protective film so as to shape the PE protective film.
The opening of second hot air blower 40 is lower than the opening of cold air blower 39 and the diameter of the opening of second hot air blower 40 is below 1/4 of the diameter of the opening of cold air blower 39.
The controller is provided with a handle for controlling the opening and closing of the third moving block 36 and controlling the moving direction;
the controller also controls the opening and closing of the second hot air blower 40 and the cold air blower 39.
The tip of the scraper blade is arranged obliquely, and the oblique direction is towards the front of the movement direction of scraping the PE protective film.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.

Claims (8)

1. A PE protective film for attaching a polarizer includes an adhesive layer (14) and a body layer (12); the method is characterized in that:
also comprises a heat shrinkable layer (11) and an adhesion reinforcing layer (13); arranging all layers from top to bottom according to the sequence of the thermal shrinkage layer (11), the body layer (12), the bonding reinforcing layer (13) and the bonding layer (14) to obtain a PE protective film for attaching the polaroid;
the heat-shrinkable layer (11) becomes soft when heated to 75-100 ℃ and shrinks without external force, so that the whole PE protective film is curled towards the heat-shrinkable layer (11);
the body layer (12) is made of PE material, is stable when heated to 75-100 ℃, and cannot deform automatically;
the adhesion reinforcing layer (13) is used for reinforcing the bonding strength of the body layer (12) and the adhesive layer (14), and the bonding strength of the body layer (12) and the adhesive layer (14) is kept to be larger than that of the adhesive layer (14) and the polarizer when the body layer (12) and the adhesive layer (14) are heated to 75-100 ℃;
the adhesive layer (14) is used for being adhered to the polaroid, so that the PE protective film provides protection for the polaroid, and the soft adhesion effect of the adhesive layer (14) is reduced when the adhesive layer is heated to 75-100 ℃;
the area of the PE protective film is larger than that of the polaroid, and an ear part (15) is projected from one end of the polaroid; when the PE protective film needs to be uncovered, the clamp clamps the ear part (15), hot air at 75-100 ℃ is blown to the PE protective film, so that the PE protective film is curled towards the direction of the heat shrinkage layer (11), and the soft bonding effect is reduced when the bonding layer (14) is heated to 75-100 ℃, so that the whole PE protective film is curled into a roll and automatically separated from the surface of the polaroid.
2. The PE protective film for attaching a polarizer according to claim 1, wherein:
the heat-shrinkable layer (11) is a heat-shrinkable polyester film, the body layer (12) is high-temperature-resistant PE, polytetrafluoroethylene is doped during production, and deformation cannot occur at the working temperature of 250 ℃; the bonding reinforcing layer (13) is a general super-bonding adhesive or a general strong-bonding adhesive, and the bonding layer is a general re-uncovering adhesive or a fiber re-uncovering adhesive.
3. A PE protective film for attaching a polarizer according to claim 1, wherein the ear member (15) is a conductive member, and the upper surface and the lower surface thereof are provided with electrodes which are conducted to each other.
4. A film peeling device for peeling the PE protective film according to any one of claims 1 to 3;
the film uncovering device comprises a first supporting rod (21), a first fixed block (22), a first moving block (23), a first hot air blower (24) and a first fixed groove (25); the first supporting rod (21) is arranged on one side of the first fixing groove (25), and the first fixing groove (25) is used for placing the polaroid; the first supporting rod (21) is provided with a first fixed block (22), a first moving block (23) and a first hot air blower (24); the first hot air blower (24) is arranged at the top of the first supporting rod (21), and the blowing direction of the first hot air blower (24) faces the first fixing groove (25);
the first fixed block (22) and the first moving block (23) are arranged in the middle of the first supporting rod (21) and used for clamping the ear part (15), the first fixed block (22) is fixed, and the first moving block (23) can move up and down to clamp and release the ear part (15); the first fixed block (22) and the first moving block (23) are provided with electrodes, when the first moving block (23) moves downwards and clamps the ear part (15), the first fixed block (22), the ear part (15) and the first moving block (23) are conducted, so that a power supply of the first air heater (24) is started, and the first air heater (24) starts to blow air; when the first moving block (23) moves to release the lug part (15), the first fixed block (22), the lug part (15) and the first moving block (23) are disconnected, and the first hot air blower (24) is turned off.
5. The film stripping device as claimed in claim 4, wherein:
the temperature of hot air blown by the first hot air blower (24) is 75-100 ℃.
6. A film-sticking device characterized by being used for sticking the PE protective film according to any one of claims 1 to 3;
the film uncovering device comprises a second supporting rod (31), a third supporting rod (32), a lead screw (33), a second fixed block (34), a second moving block (35), a third moving block (36), a second fixed groove (37) and a scraper (38); the second supporting rod (31) and the third supporting rod (32) are respectively arranged on two sides of the fixed groove, a lead screw (33) is connected between the tops of the second supporting rod (31) and the third supporting rod (32), and a third moving block (36) is mounted on the lead screw (33); the second fixing groove (37) is used for placing the polaroid; a second fixed block (34) and a second moving block (35) are arranged on the second support rod (31); the second fixed block (34) and the second moving block (35) are arranged in the middle of the second supporting rod (31) and used for clamping the ear part (15), the second fixed block (34) is fixed, and the second moving block (35) can move up and down to clamp and release the ear part (15); the second fixed block (34) and the second moving block (35) are provided with electrodes, when the second moving block (35) moves downwards and clamps the ear part (15), the second fixed block (34), the ear part (15) and the second moving block (35) are conducted, and the third moving block (36) can horizontally move under the control of the controller;
when the second moving block (35) moves to release the ear part (15), the second fixed block (34), the ear part (15) and the second moving block (35) are disconnected, and the third moving block (36) loses power supply and cannot move;
the third moving block (36) is provided with a scraper (38), and the scraper (38) is used for scraping off the curled PE protective film and flattening the curled PE protective film again; the scraper (38) is provided with an air cooler (39) and a second hot air blower (40); the air cooler (39) and the second hot air blower (40) are both opened downwards, and when the PE protective film is scraped, the hot air blower is arranged in front of the movement direction of the scraper (38) and used for heating the PE protective film, so that the PE protective film is integrally softened, and the bonding layer (14) is softened; and the air cooler (39) is arranged behind the movement direction of the scraper (38) and used for cooling the expanded PE protective film so as to shape the PE protective film.
7. The film attachment device of claim 6, wherein:
the opening of the second hot air blower (40) is lower than the opening of the cold air blower (39), and the diameter of the opening of the second hot air blower (40) is below 1/4 of the diameter of the opening of the cold air blower (39).
8. The film attachment device of claim 6, wherein:
the controller is provided with a handle for controlling the opening and closing of the third moving block (36) and controlling the moving direction;
the controller also controls the opening and closing of the second hot air blower (40) and the cold air blower (39).
CN202110053494.XA 2021-01-15 2021-01-15 PE protective film for applying polaroid Active CN112877005B (en)

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CN202110053494.XA CN112877005B (en) 2021-01-15 2021-01-15 PE protective film for applying polaroid

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CN202110053494.XA CN112877005B (en) 2021-01-15 2021-01-15 PE protective film for applying polaroid

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CN112877005A true CN112877005A (en) 2021-06-01
CN112877005B CN112877005B (en) 2023-04-28

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CN108297509A (en) * 2016-08-11 2018-07-20 日东电工(上海松江)有限公司 Composite sheet and adhesive tape
CN207689701U (en) * 2017-12-29 2018-08-03 深圳市高展光电有限公司 A kind of included protective film tears the polaroid of hand
CN207954807U (en) * 2018-03-12 2018-10-12 星光印刷(深圳)有限公司 A kind of coat peeling unit of automatic box gluing machine
CN109177441A (en) * 2018-11-22 2019-01-11 浙江晶科能源有限公司 A kind of coat peeling unit and its dyestripping method
CN109454972A (en) * 2018-11-29 2019-03-12 武汉华星光电技术有限公司 Polarizing plate protective film and its tear-off method

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1721935A (en) * 2004-07-13 2006-01-18 鸿富锦精密工业(深圳)有限公司 Coat peeling unit, polaroid adhering device and dyestripping method
CN107599584A (en) * 2016-01-14 2018-01-19 陈国栋 The high smart mobile phone screen protecting film patch of automaticity removes equipment and method of work
CN108297509A (en) * 2016-08-11 2018-07-20 日东电工(上海松江)有限公司 Composite sheet and adhesive tape
CN207689701U (en) * 2017-12-29 2018-08-03 深圳市高展光电有限公司 A kind of included protective film tears the polaroid of hand
CN207954807U (en) * 2018-03-12 2018-10-12 星光印刷(深圳)有限公司 A kind of coat peeling unit of automatic box gluing machine
CN109177441A (en) * 2018-11-22 2019-01-11 浙江晶科能源有限公司 A kind of coat peeling unit and its dyestripping method
CN109454972A (en) * 2018-11-29 2019-03-12 武汉华星光电技术有限公司 Polarizing plate protective film and its tear-off method

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