Peep-proof film production equipment and use method

Abstract

The invention relates to the field of screen film production equipment, in particular to peep-proof film production equipment and a use method. Comprising an unwinding device, a dust removal device, an unwinding traction device, a curing device, a compounding device and a winding device, an unwinding roller is arranged on the unwinding device, a base layer film is arranged on the unwinding roller, a dust removal device is arranged on the side edge of the unwinding device, an unwinding traction device is arranged on the side edge of the dust removal device, the base layer film enters the curing device through dust removal of the dust removal device and smoothing of the unwinding traction device, and the curing device is provided with two sections of glue dripping coating layers. The coating is subjected to UV curing molding, and the first section is used for producing the transparent peep-proof louver; the second section is provided with a black peep-proof blind window; and the formed coating enters the compounding device through the traction roller and is compounded with the protective film to form the peep-proof film, and the peep-proof film is wound through the winding device. The whole device is high in automation degree and easy and convenient to operate, a large amount of manual operation is not needed, the labor cost is reduced, and the production efficiency is greatly improved.

Description

Technical Field

[0001] The present invention relates to the field of screen film production equipment, and in particular to an anti-peep film production equipment and a use method thereof. Background Art

[0002] Existing equipment for producing privacy films is complex and typically consists of two stages: the transparent portion is produced first, followed by the black portion. This production process is lengthy, particularly during the coating process, which is difficult to apply and requires a long production time. Furthermore, the coating curing process is poor, resulting in uneven coating thickness after application. This makes it difficult to detect any issues during the two separate production processes, thus reducing the privacy protection effect. Furthermore, existing equipment requires an external curing device to cure the coating after application, which is time-consuming and hinders production.

[0003] Therefore, the applicant designed an anti-peep film production equipment for production, which can realize the entire production line of anti-peep film. At the same time, after the coating is applied on the base layer, it can be quickly cured, so that the coating can be formed quickly and problems can be corrected immediately, thereby being more optimized and efficient. Summary of the Invention

[0004] This application provides a privacy film production device, which adopts the following technical solutions: A privacy film production device, comprising an unwinding device, a dust removal device, an unwinding and traction device, a curing device, a compounding device and a winding device; The unwinding device is provided with an unwinding roller, and a base film is provided on the unwinding roller. A dust removal device is provided on the side of the unwinding device, and an unwinding traction device is provided on the side of the dust removal device. The base film enters the first curing device of the UV lamp group after being dusted by the dust removal device and smoothed by the unwinding traction device. The curing device drips glue and applies the coating. The coating is UV cured and formed by an ultra-precision structure roller. The formed coating is embossed with a transparent anti-peeping structure and enters the second curing device of the UV lamp group through the traction roller. The curing device drips glue and applies the coating. After being squeezed by the mirror wheel to form a black anti-peeping structure, it enters the composite device and is composited with the protective film to form an anti-peeping film. The anti-peeping film is wound through the winding device; a dust removal roller is provided in the dust removal device, and a roller is provided on the lower side of the dust removal roller for the passage of the base film. A tape is provided on the surface of the dust removal roller, and an adjustment device is provided on the side of the dust removal roller.

[0005] Optionally, the outer surface of the roller on the lower side of the dust removal roller is a sticky rubber layer, which contacts the base film to adsorb the dust on the base film onto the sticky rubber roller. The sticky rubber roller rotates in conjunction with the dust removal roller. The tape on the surface of the dust removal roller can be pulled off in dusty conditions, leaving the lower section of the clean sticky tape. The dust on the sticky rubber roller sticks to the dust removal roller when it contacts the dust removal roller.

[0006] Optionally, a glue flow track is provided in the fixing device, the glue flow track is connected to the glue drop head, and the glue flow track is connected to the external glue. The glue drips from the glue drop head through the glue flow track and is led into a flow. The dripping glue falls evenly on the roller below and the concave part of the roller, leading to a certain amount of glue accumulation. The accumulated glue part enters the ultra-precision structure wheel for transfer and imprinting.

[0007] Optionally, a front pressure precision regulating valve A is provided on one side of the glue dispensing head for adjusting the glue dispensing speed of the glue dispensing head 1.

[0008] Optionally, a UV lamp group 1 is provided below the curing device, which can quickly cure the anti-peep film structure of the transparent part of the transparent shutter structure formed by coating the glue and passing through the ultra-precision structure wheel.

[0009] Optionally, the curing device is further provided with a second glue dispensing head, and a forward pressure precision regulating valve B is provided on the side of the second glue dispensing head for adjusting the glue discharge flow rate of the second glue dispensing head. The glue dispensing head produces black glue, which falls evenly on the roller and mirror wheel below the second glue dispensing head, and is pressed into a black strip anti-peep film structure, thereby completing the production of the entire anti-peep film.

[0010] Optionally, the mirror roller below the second glue dropper head will add black glue to the structure of the white glue after mirror rolling to form a grille, forming a louver structure, that is, a black non-transparent unit and a transparent transparent unit. The non-transparent unit and the transparent transparent unit are quickly cured by the second UV lamp group arranged below.

[0011] Optionally, the ratio of the height to the width of the perspective unit is 1:2.5, 1:3, 1:35, or 1:4.

[0012] Optionally, the cured film layer is pulled by a forming roller to a thickness measuring device in the curing device, and the thickness of the cured film is measured by the thickness measuring device.

[0013] A privacy film production device and a method of using the same. Step S1: A base film is provided on the unwinding device, and the base film is transported to the dust removal device by traction, and is brought into contact with the dust removal roller through the roller on the dust removal device, and the dust removal roller sticks to the dust on the roller; Step S2: After dust removal, the base film is tensioned and smoothed by the unwinding and traction device and transported to the curing device. The glue dropper on the curing device drops glue onto the roller. The ultra-precision roller evenly coats the glue on the base film. The coated glue is cured under the action of the UV lamp group 1 to form a transparent anti-peep film. Step S3: The cured base film is transported to the vicinity of the second dispensing head, which drips black glue onto the mirror roller. The mirror roller rotates to apply the black glue. After the black glue is applied, it is cured by the second UV lamp group. The formed coating consists of non-transparent units and transparent transparent units arranged alternately to form an anti-peep film. Step S4: The base film solidified by the curing device enters the compounding device and is laminated with the protective film unwinding device to form a complete privacy film; Step S5: The formed privacy film is rolled up by a rolling device.

[0014] Compared with the prior art, the present invention has the following beneficial effects: 1. The dust removal device can remove dust from the base film to prevent the presence of dust from affecting subsequent coating, thereby greatly improving the product yield; 2. Precise control of glue dispensing is achieved by controlling the individual glue dispensing heads through precision pressure regulating valves. The glue is evenly applied to the base film through rollers. At the same time, a UV lamp group is set underneath to quickly achieve UV curing of the coating after coating, thus achieving rapid curing of the coating. 3. The thickness measuring device can detect the coating after coating to prevent uneven thickness; 4. The overall device has a high degree of automation and is easy to operate. It does not require a lot of manual operation, which reduces labor costs and greatly improves production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be discussed below. Obviously, the technical solutions described in conjunction with the drawings are only some embodiments of the present invention. For ordinary technicians in this field, other embodiments and their drawings can be obtained based on the embodiments shown in these drawings without paying any creative work.

[0016] Figure 1 It is the overall structure diagram of the present invention.

[0017] Figure 2 It is a structural diagram of the dust removal device of the present invention.

[0018] Figure 3 The curing device structure of the present invention is Figure 1 .

[0019] Figure 4 The curing device structure of the present invention is Figure 2 .

[0020] Figure 5 It is a structural diagram of the winding device of the present invention.

[0021] Figure 6 This is a demonstration diagram of the perspective unit of the present invention.

[0022] Figure 7 This is a demonstration diagram of the non-perspective unit of the present invention.

[0023] Figure 8 This is a microscope picture of the perspective unit of the present invention.

[0024] Figure 9 These are microscope pictures of the perspective unit and the non-perspective unit of the present invention.

[0025] In the figure: 1. Unwinding device; 2. Dust removal device; 201. Dust removal roller; 3. Unwinding traction device; 4. Curing device; 401. Glue flow track 1; 402. Glue dispensing head 1; 403. UV lamp group 1; 404. Front pressure precision regulating valve A; 405. Front pressure precision regulating valve B; 406. Exhaust duct; 407. UV lamp group 2; 408. Glue dispensing head 2; 409. Thickness measuring device; 410. Mirror roller; 411. Forming structure roller; 412. Traction roller; 413. Glue polymerization area A; 414. Glue polymerization area B; 5. Composite device; 501. Protective film unwinding device; 6. Rewinding device; 601. Rewinding roller; 701. Transparent unit; 702. Non-transparent unit. DETAILED DESCRIPTION

[0026] The following will clearly and completely describe the technical solutions of various embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0027] In the description of the present invention, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," "the other end," and the like, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate and simplify the description of the present invention. They are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation, and therefore should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0028] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "provided with," "connected," etc., should be understood in a broad sense. For example, "connected" may refer to a fixed connection, a detachable connection, or an integral connection; it may refer to a mechanical connection or an electrical connection; it may refer to a direct connection or an indirect connection through an intermediate medium; it may refer to internal communication between two components. Those skilled in the art will be able to understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0029] Embodiments of the present invention provide a privacy film production device and a method of use.

[0030] Embodiment: A privacy film production device includes a unwinding device 1, a dust removal device 2, an unwinding traction device 3, a curing device 4, a compounding device 5 and a winding device 6; the unwinding device 1 is provided with an unwinding roller, and the unwinding roller is provided with a base film, the base film is a PET material, and the side of the unwinding device 1 is provided with a dust removal device 2, and a dust removal roller 201 is provided in the dust removal device 2. At the same time, a roller is provided on the lower side of the dust removal roller 201 for the passage of the base film, and a tape is provided on the surface of the dust removal roller 201, and an adjusting device is provided on the side of the dust removal roller 201. The adjusting device is provided with a spring limiter, which can allow the dust removal roller 201 to move downward and contact the roller closely. The outer surface of the roller on the lower side of the dust removal roller 201 is a rubber layer, which can adsorb dust on the base film onto this rubber roller when in contact with the base film, and this rubber roller can also adsorb static electricity on the base film, thereby playing a role in removing static electricity. Because the rubber roller rotates in close contact with the dust removal roller 201, the dust on the rubber roller sticks to the dust removal roller 201 when it contacts the dust removal roller 201, keeping the rubber roller clean. When there is a lot of dust on the dust removal roller 201, the tape on the outside of the dust removal roller 201 can be torn off. The tape on the dust removal roller 201 is layered and can be torn off, leaving a new layer of tape to stick to the dust on the rubber roller. At the same time, the adjustment device on the dust removal roller 201 is provided with a spring, which can keep it in contact with the rubber roller as the tape is torn off.

[0031] An unwinding and traction device 3 is provided on the side of the dust removal device 2. Several rollers are provided in the unwinding and traction device 3. The purpose is to flatten the base film after dust removal to prevent wrinkles on the base film from affecting the following coating process.

[0032] The base film is smoothed by the unwinding traction device 3 and enters the curing device 4. A glue flow track 401 is provided in the curing device 4. The glue flow track 401 is connected with the glue dripping head 402. The glue flow track 401 is connected with the external glue. The glue drips from the glue dripping head 402 through the glue flow track 401. The dripped glue evenly falls on the glue gathering area A413 of the roller below. The glue drips from the glue dripping head through the glue flow track 1 and is led into a flow. The dripped glue evenly falls on the roller below and the concave part of the roller to form a certain amount of glue accumulated at the glue gathering area A413. The accumulated glue The water part enters the ultra-precision structure wheel for transfer imprinting, and as the roller below is in contact with the base film, the glue on the roller and the base film are evenly coated. At the same time, a front pressure precision regulating valve A404 is provided on the side of the glue dropper 402 to adjust the glue discharge speed of the glue dropper 402; a UV lamp group 403 is provided below the curing device 4, which can quickly cure the glue after coating, and this UV lamp group 403 is provided below the base film, so the upward UV ultraviolet light can quickly cure the glue, and at the same time, the cured base film is conveyed to the curing device 4 along with the roller. The other side of the curing device 4 is provided with a second glue drop head 408 above the other side, and a front pressure precision regulating valve B405 is provided on the side of the second glue drop head 408 for adjusting the glue flow rate of the second glue drop head 408. The second glue drop head 408 comes out of black glue, and the black glue coming out of the second glue drop head 408 falls evenly on the roller glue gathering place B414 below the second glue drop head 408. The black glue is evenly attached to the solidified glue through the roller. At the same time, a mirror roller 410 is provided on the roller below the second glue drop head 408. After rolling, a grille will be formed on the black glue to form a shutter structure, that is, a black non-transparent single The structure comprises a non-transparent element 702 and a transparent see-through element 701, with the height-to-width ratio of the see-through element 701 being between 1:2.5, 1:3, 1:35, and 1:4. After rolling, the black non-transparent element 702 and the transparent see-through element 701 are rapidly cured by a second UV lamp assembly 407 located below, rapidly forming the black grille. The anti-privacy layer of the privacy film is thus coated and cured. The cured film layer is drawn by forming rollers 410 to a thickness gauge 409 within the curing device 4, where it is inspected to ensure uniform and stable thickness. An exhaust duct 406 is provided at the bottom of the curing device 4 to facilitate internal heat dissipation.

[0033] The curing device 4 is also provided with a traction roller 412 to transfer the formed film to the composite device 5. The composite device 5 is provided with a protective film unwinding device 501. The protective film unwinding device 501 can be used to laminate the protective film and the formed film layer. At the same time, the laminated protective film and the base film are laminated through the interaction of the rollers to form a complete anti-peep film.

[0034] The privacy film is finally pulled to the winding device 6, where a winding roller is provided. The formed privacy film is wound onto the winding roller 601 to complete the winding of the privacy film.

[0035] The steps for using the light curing equipment are as follows: Step S1: A base film is provided on the unwinding device 1, and the base film is transported to the dust removal device 2 by traction, and is brought into contact with the dust removal roller 201 through the roller on the dust removal device 2, and the dust removal roller 201 sticks to the dust on the roller; Step S2: After dust removal, the base film is tensioned and smoothed by the unwinding traction device 3 and transported to the curing device 4. The glue dripping head 402 on the curing device 4 drips glue onto the roller, and the roller evenly coats the glue on the base film. The coated glue is cured and formed under the action of the UV lamp group 403. Step S3: The cured base film is transported to the vicinity of the second glue dispensing head 408, which drips black glue onto the mirror roller. The mirror roller rotates to apply the black glue. After the black glue is applied, it is cured by the second UV lamp group 407. The formed coating is arranged with non-transparent units and transparent transparent units alternately. Step S4: The base film cured by the curing device 4 enters the compounding device 5 and is laminated with the protective film unwinding device 501 to form a complete privacy film; Step S5: The formed privacy film is rolled up by the rolling device 6 .

[0036] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive. The scope of the present invention is defined by the appended claims, not the foregoing description, and it is intended that all variations within the meaning and range of equivalents of the claims be encompassed within the present invention. Any reference numerals in the claims should not be construed as limiting the claim to which they relate.

[0037] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A privacy film production device, characterized by: It includes an unwinding device, a dust removal device, an unwinding traction device, a curing device, a compounding device and a winding device; The unwinding device is provided with an unwinding roller, and a base film is provided on the unwinding roller. A dust removal device is provided on the side of the unwinding device, and an unwinding traction device is provided on the side of the dust removal device. The base film enters the first curing device of the UV lamp group after being dusted by the dust removal device and smoothed by the unwinding traction device. The curing device drips glue and applies the coating. The coating is UV cured and formed by an ultra-precision structure roller. The formed coating is embossed with a transparent anti-peeping structure and enters the second curing device of the UV lamp group through the traction roller. The curing device drips glue and applies the coating. After being extruded by a mirror wheel to form a black anti-peeping structure, it enters the composite device and is composited with the protective film to form an anti-peeping film. The anti-peeping film is wound through the winding device, and a dust removal roller is provided in the dust removal device. A roller is provided on the lower side of the dust removal roller for the passage of the base film. A tape is provided on the surface of the dust removal roller, and an adjustment device is provided on the side of the dust removal roller.

2. The privacy film production equipment according to claim 1, characterized in that: The outer surface of the roller on the lower side of the dust removal roller is a sticky rubber layer, which contacts the base film and adsorbs the dust on the base film onto the sticky rubber roller. The sticky rubber roller rotates in conjunction with the dust removal roller. The tape on the surface of the dust removal roller can be pulled off in dusty conditions, leaving the lower section of clean sticky tape. The dust on the sticky rubber roller sticks to the dust removal roller when it contacts the dust removal roller.

3. The privacy film production equipment according to claim 1, characterized in that: A glue flow track is provided in the fixing device, which is connected to a glue drop head and an external glue. The glue drips from the glue drop head through the glue flow track and is led into a flow. The dripping glue evenly falls on the roller below and the concave part of the roller, leading to a certain amount of glue accumulation. The accumulated glue enters the ultra-precision structure wheel for transfer and imprinting.

4. The privacy film production equipment according to claim 3, characterized in that: A front pressure precision regulating valve A is provided on one side of the glue dispensing head to adjust the glue dispensing speed of the glue dispensing head.

5. The privacy film production equipment according to claim 1, characterized in that: A UV lamp group 1 is provided below the curing device, which can quickly cure the anti-peep film structure of the transparent part of the transparent shutter structure formed after being coated with glue and passed through the ultra-precision structure wheel.

6. The privacy film production equipment according to claim 5, characterized in that: The curing device is also provided with a second glue dispensing head. A front pressure precision regulating valve B is provided on the side of the second glue dispensing head for adjusting the glue discharge flow rate of the second glue dispensing head. The glue dispensing head produces black glue, which falls evenly on the roller and mirror wheel below the second glue dispensing head. After being pressed into a black strip anti-peep film structure, the entire anti-peep film is produced.

7. The privacy film production equipment according to claim 6, characterized in that: The mirror roller below the second glue dispensing head will add black glue to the structure of the white glue after mirror rolling to form a grid, forming a louver structure, that is, a black non-transparent unit and a transparent transparent unit. The non-transparent unit and the transparent transparent unit are quickly cured by the second UV lamp group set below.

8. The privacy film production equipment according to claim 7, characterized in that: The height to width ratio of the perspective unit is 1:2.5, 1:3, 1:35, or 1:

4.

9. The privacy film production equipment according to claim 7, characterized in that: The cured film layer is pulled by the forming roller to the thickness measuring device in the curing device, and the thickness of the cured film is measured by the thickness measuring device.

10. A method for using the light-curing device according to any one of claims 1 to 9, characterized in that: The following steps are involved: Step S1: A base film is provided on the unwinding device, and the base film is transported to the dust removal device by traction, and is brought into contact with the dust removal roller through the roller on the dust removal device, and the dust removal roller sticks to the dust on the roller; Step S2: After dust removal, the base film is tensioned and smoothed by the unwinding and traction device and transported to the curing device. The glue dropper on the curing device drops glue onto the roller. The ultra-precision roller evenly coats the glue on the base film. The coated glue is cured under the action of the UV lamp group 1 to form a transparent anti-peep film. Step S3: The cured base film is transported to the vicinity of the second dispensing head, which drips black glue onto the mirror roller. The mirror roller rotates to apply the black glue. After the black glue is applied, it is cured by the second UV lamp group. The formed coating consists of non-transparent units and transparent transparent units arranged alternately to form an anti-peep film. Step S4: The base film solidified by the curing device enters the compounding device and is laminated with the protective film unwinding device to form a complete privacy film; Step S5: The formed privacy film is rolled up by a rolling device.

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