An anti-peep film production device

Abstract

This utility model relates to the field of screen protector production equipment, and more particularly to a privacy screen protector production equipment. It includes an unwinding device, a dust removal device, an unwinding traction device, a curing device, a laminating device, and a winding device. The unwinding device is equipped with an unwinding roller, on which a base film is placed. A dust removal device is located on the side of the unwinding device, and an unwinding traction device is located on the side of the dust removal device. The base film is cleaned by the dust removal device and smoothed by the unwinding traction device before entering the curing device. The curing device has two stages for applying an adhesive coating. The coating is then UV-cured. The first stage produces transparent privacy louvers; the second stage produces black privacy louvers. The formed coating is then passed through a traction roller into the laminating device to be laminated with a protective film to form the privacy screen protector. The privacy screen protector is then wound up by the winding device. The overall equipment has a high degree of automation, is easy to operate, requires minimal manual labor, reduces labor costs, and significantly improves production efficiency.

Description

Technical Field

[0001] This utility model relates to the field of screen film production equipment, and in particular to a privacy film production equipment. Background Technology

[0002] Existing equipment for producing privacy films is complex, essentially involving two stages: first, the transparent privacy section is produced, followed by the production of the black privacy film portion. This process is time-consuming, particularly the coating, which is difficult and time-consuming to apply. Furthermore, the coating curing process is often ineffective, resulting in uneven coating thickness. These problems are difficult to detect immediately during the two separate production stages, leading to a decrease in privacy protection. Additionally, existing equipment requires an external curing unit to cure the coating after application, which is time-consuming and detrimental to production.

[0003] Therefore, the applicant designed a privacy film production equipment that can realize the entire production line of privacy films. At the same time, after the coating is applied to the base layer, it can be cured quickly, allowing the coating to form quickly and problems to be corrected immediately, thus making it more optimized and efficient. Utility Model Content

[0004] This application provides a privacy film production equipment, which adopts the following technical solution:

[0005] A privacy film production equipment includes an unwinding device, a dust removal device, an unwinding traction device, a curing device, a laminating device, and a winding device;

[0006] The unwinding device is equipped with an unwinding roller, on which a base film is placed. A dust removal device is located on the side of the unwinding device, and an unwinding traction device is located on the side of the dust removal device. The base film passes through the dust removal device for dust removal and the unwinding traction device for smoothing before entering the UV lamp group's first curing unit. The curing unit applies a coating by dripping glue, and the coating is cured by UV curing using ultra-precision structure rollers. The cured coating is imprinted with a transparent privacy screen structure and enters the UV lamp group's second curing unit via a traction roller. The curing unit applies a coating by dripping glue, and after being pressed by a mirror wheel to form a black privacy screen structure, it enters the lamination unit to be laminated with a protective film to form a privacy screen film. The privacy screen film is then wound up by the winding device. The dust removal device is equipped with a dust removal roller, and a roller is located on the lower side of the dust removal roller for the passage of the base film. An adhesive tape is placed on the surface of the dust removal roller, and an adjustment device is located on the side of the dust removal roller.

[0007] Optionally, the outer surface of the roller on the lower side of the dust removal roller is a sticky rubber layer. When it comes into contact with the base film, it adsorbs the dust on the base film onto the sticky rubber roller. The sticky rubber roller rotates in contact with the dust removal roller. The tape on the surface of the dust removal roller can be pulled off in the case of heavy dust, leaving a clean section of sticky tape. When the dust on the sticky rubber roller comes into contact with the dust removal roller, it sticks to the dust removal roller.

[0008] Optionally, the fixing device is equipped with a glue flow track, which is connected to a glue dispensing head and an external glue. The glue flows down from the glue dispensing head through the glue flow track and is drawn into a flow. The dripping glue falls evenly onto the roller below and the concave part of the roller, forming a certain amount of glue accumulation. The accumulated glue enters the ultra-precision structural wheel for transfer and imprinting.

[0009] Optionally, a precision pressure regulating valve A is provided on one side of the dispensing head to regulate the dispensing speed of the dispensing head.

[0010] Optionally, a UV lamp assembly is installed below the curing device, which can quickly cure the privacy film structure of the transparent part, which is formed into a transparent louver structure after being coated with glue and passed through an ultra-precision structural wheel.

[0011] Optionally, the curing device is also equipped with a second dispensing head. A precision pressure regulating valve B is provided on the side of the second dispensing head to regulate the dispensing flow rate of the second dispensing head. The dispensing head produces black glue, which falls evenly onto the roller and mirror wheel below the second dispensing head. After being pressed, it is formed into a black strip-shaped privacy film structure, thus completing the production of the entire privacy film.

[0012] Optionally, the mirror roller below the dispensing head will inject black glue into the structure of white glue after being pressed by the mirror roller to form a grid, forming a louver structure, namely black non-transparent units and transparent transparent units. The non-transparent units and transparent transparent units are quickly cured by the UV lamp group two set below.

[0013] Optionally, the height-to-width ratio of the perspective unit can be between 1:2.5, 1:3, 1:35, and 1:4.

[0014] Optionally, the cured film layer is pulled by the forming roller to the thickness measuring device in the curing device, and the thickness measuring device is used to detect the thickness of the cured film.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0016] 1. The dust removal device can remove dust from the base film, preventing the dust from affecting subsequent coating and greatly improving the product yield;

[0017] 2. Precise control of adhesive dispensing is achieved by using individual pressure regulating valves to control each dispensing head, and the adhesive is evenly coated onto the base film by rollers. At the same time, a UV lamp group is set below to quickly achieve UV curing of the coating after coating is completed, thus achieving rapid curing of the coating.

[0018] 3. The thickness measuring device can detect the coating after it has been applied and formed, preventing uneven thickness;

[0019] 4. The overall equipment is highly automated and easy to operate, requiring minimal manual labor, thus reducing labor costs and significantly improving production efficiency. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be discussed below. Obviously, the technical solutions described in conjunction with the accompanying drawings are only some embodiments of this utility model. For those skilled in the art, other embodiments and their accompanying drawings can be obtained from the embodiments shown in these drawings without creative effort.

[0021] Figure 1 This is an overall structural diagram of the present invention.

[0022] Figure 2 This is a structural diagram of the dust removal device of this utility model.

[0023] Figure 3 This utility model describes the structure of the curing device. Figure 1 .

[0024] Figure 4 This utility model describes the structure of the curing device. Figure 2 .

[0025] Figure 5 This is a structural diagram of the winding device of this utility model.

[0026] Figure 6 This is a demonstration diagram of the perspective unit of this utility model.

[0027] Figure 7 This is a non-perspective unit demonstration diagram of this utility model.

[0028] In the diagram: 1. Unwinding device; 2. Dust removal device; 201. Dust removal roller; 3. Unwinding traction device; 4. Curing device; 401. Adhesive flow track one; 402. Adhesive dripping head one; 403. UV lamp group one; 404. Precision pressure regulating valve A; 405. Precision pressure regulating valve B; 406. Exhaust duct; 407. UV lamp group two; 408. Adhesive dripping head two; 409. Thickness measuring device; 410. Mirror roller; 411. Forming structure roller; 412. Traction roller; 413. Adhesive gathering section A; 414. Adhesive gathering section B; 5. Laminating device; 501. Protective film unwinding device; 6. Rewinding device; 601. Rewinding roller; 701. Transparent unit; 702. Non-transparent unit. Detailed Implementation

[0029] The technical solutions of various embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0030] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0031] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0032] An embodiment of this utility model provides a privacy film production equipment.

[0033] Example: A privacy film production equipment includes an unwinding device 1, a dust removal device 2, an unwinding traction device 3, a curing device 4, a laminating device 5, and a winding device 6. The unwinding device 1 is equipped with an unwinding roller, on which a base film made of PET material is placed. A dust removal device 2 is located on the side of the unwinding device 1, containing a dust removal roller 201. A roller is located below the dust removal roller 201 for the passage of the base film. An adhesive tape is applied to the surface of the dust removal roller 201, and an adjusting device with a spring limiter is located on the side of the dust removal roller 201, allowing the dust removal roller 201 to move downwards and make close contact with the roller. The outer surface of the roller below the dust removal roller 201 is a rubber layer, which adsorbs dust from the base film when in contact with it, and also removes static electricity from the base film, thus eliminating 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 comes into contact with it, 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 in layers 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 adjusting device on the dust removal roller 201 is equipped with a spring so that it can maintain contact with the rubber roller as the tape is torn off.

[0034] A roll-out traction device 3 is provided on the side of the dust removal device 2. The roll-out traction device 3 is equipped with several rollers. Its purpose is to flatten and smooth the base film after dust removal, so as to prevent wrinkles on the base film from affecting the coating process below.

[0035] The base film is smoothed by the unwinding and traction device 3 and enters the curing device 4. The curing device 4 is equipped with a glue-dispensing track 401, which is connected to a glue-dispensing head 402 and an external glue source. The glue drips from the glue-dispensing head 402 through the glue-dispensing track 401, and the dripping glue falls evenly onto the glue-gathering area A413 of the lower roller. The glue drips from the glue-dispensing head 402 through the glue-dispensing track 401, forming a stream. The dripping glue falls evenly onto the lower roller and the concave area of ​​the roller, causing a certain amount of glue to accumulate at the glue-gathering area A413. The water portion enters the ultra-precision structured roller for transfer and imprinting. As the roller below adheres to the base film, the adhesive on the roller is evenly coated onto the base film. Simultaneously, a precision pressure regulating valve A404 is located on the side of the dispensing head 402 to adjust the dispensing speed. Below the curing device 4, a UV lamp assembly 403 is installed to rapidly cure the coated adhesive. Since this UV lamp assembly 403 is positioned below the base film, the upward-shielded UV light quickly cures the adhesive. The cured base film is then conveyed to the curing device 4 by the roller. On the other side; above the other side of the curing device 4, a second dispensing head 408 is provided. A precision pressure regulating valve B405 is located on the side of the second dispensing head 408 to regulate the dispensing flow rate. The dispensing head 408 dispenses black glue, which falls evenly onto the glue-gathering roller B414 below it. The roller evenly adheres the black glue to the cured adhesive. Simultaneously, a mirror roller 410 is located on the roller below the second dispensing head 408. After rolling, a grid is formed on the black glue, creating a louver structure, i.e., a black, non-transparent single layer. The device consists of a non-transparent unit 702 and a transparent transparent unit 701, with the height-to-width ratio of the transparent unit 701 being between 1:2.5, 1:3, 1:35, and 1:4. After being rolled, the black non-transparent unit 702 and the transparent transparent unit 701 are quickly cured by the UV lamp group 407 located below, allowing the black grid to form rapidly. This completes the coating and curing of the privacy film's privacy layer. The cured film layer is then pulled by the forming roller 410 to the thickness measuring device 409 inside the curing device 4. The thickness measuring device 409 detects the thickness of the cured film to ensure uniform and stable thickness. An exhaust channel 406 is provided at the bottom of the curing device 4 for convenient internal heat dissipation.

[0036] The curing device 4 is also equipped with a traction roller 412 to transfer the formed film to the laminating device 5. The laminating device 5 is equipped with a protective film unwinding device 501. The protective film and the formed film layer can be bonded together by the protective film unwinding device 501. At the same time, the bonded protective film and the base film are combined by the interaction of the rollers to form a complete privacy film.

[0037] The privacy film is pulled to the winding device 6, which is equipped with a winding roller. The formed privacy film is wound onto the winding roller 601, completing the final winding of the privacy film.

[0038] The operating steps for the UV curing equipment are as follows:

[0039] Step S1: The base film is provided on the unwinding device 1. The base film is conveyed to the dust removal device 2 by traction force and comes into contact with the dust removal roller 201 through the roller on the dust removal device 2. The dust removal roller 201 sticks to the dust on the roller.

[0040] Step S2: After dust removal, the base film is stretched 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 glue is evenly coated on the base film by the roller. The coated glue is cured and formed under the action of the UV lamp group 403.

[0041] Step S3: The cured base film is transported to the vicinity of the dispensing head 408. The dispensing head 408 drips black glue onto the mirror roller. The black glue is coated by the rotation of the mirror roller. After the black glue is coated, it is cured by the UV lamp group 407. The formed coating consists of non-transparent units and transparent transparent units set alternately.

[0042] Step S4: The base film cured by the curing device 4 enters the composite device 5 and is laminated with the protective film unwinding device 501 to form a complete privacy film.

[0043] Step S5: The formed privacy film is wound up by the winding device 6.

[0044] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered exemplary and not restrictive in all respects. The scope of this invention is defined by the appended claims, not by the foregoing description, and is therefore intended to encompass all variations falling within the meaning and scope of equivalents of the claims. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0045] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A privacy film production equipment, characterized in that: It includes an unwinding device, a dust removal device, an unwinding traction device, a curing device, a laminating device, and a winding device; The unwinding device is equipped with an unwinding roller, on which a base film is placed. A dust removal device is located on the side of the unwinding device, and an unwinding traction device is located on the side of the dust removal device. The base film passes through the dust removal device for dust removal and the unwinding traction device for smoothing before entering the UV lamp group's first curing unit. The curing unit applies a coating by dripping glue, and the coating is cured by UV curing using ultra-precision structure rollers. The cured coating is imprinted with a transparent privacy screen structure and enters the UV lamp group's second curing unit via a traction roller. The curing unit applies a coating by dripping glue, and after being pressed by a mirror wheel to form a black privacy screen structure, it enters the lamination unit to be laminated with a protective film to form a privacy screen film. The privacy screen film is then wound up by the winding device. The dust removal device is equipped with a dust removal roller, and a roller is located on the lower side of the dust removal roller for the passage of the base film. An adhesive tape is placed on the surface of the dust removal roller, and an adjustment device is located 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. When it comes into contact with the base film, it adsorbs the dust on the base film onto the sticky rubber roller. The sticky rubber roller rotates in contact with the dust removal roller. The tape on the surface of the dust removal roller can be pulled off in dusty conditions, leaving a clean section of sticky tape. When the dust on the sticky rubber roller comes into contact with the dust removal roller, it sticks to the dust removal roller.

3. The privacy film production equipment according to claim 1, characterized in that: The fixing device is equipped with a glue flow track, which is connected to a glue dripping head and an external glue. The glue drips from the glue dripping head through the glue flow track and forms a flow. The dripping glue falls evenly onto the roller below and the concave part of the roller, forming a certain amount of glue accumulation. The accumulated glue enters the ultra-precision structural wheel for transfer and imprinting.

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

5. The privacy film production equipment according to claim 1, characterized in that: Below the curing device is a UV lamp assembly, which can quickly cure the privacy film structure, which is formed by applying glue and then passing through an ultra-precision structural wheel to create a transparent louver structure.

6. The privacy film production equipment according to claim 5, characterized in that: The curing device is also equipped with a second dispensing head. A precision pressure regulating valve B is installed on the side of the second dispensing head to regulate the dispensing flow rate of the second dispensing head. The dispensing head produces black glue, which falls evenly onto the roller and mirror wheel below the second dispensing head. After being pressed, it is formed into a black strip-shaped privacy film structure, thus completing the production of the entire privacy film.

7. The privacy film production equipment according to claim 6, characterized in that: The mirror roller below the second dispensing head, after being pressed by the mirror roller, injects black glue into the structure of white glue to form a grid, forming a louver structure, namely black non-transparent units and transparent transparent units. The non-transparent units and transparent transparent units 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 between 1:2.5, 1:3, 1:35, and 1:

4.

9. The privacy film production equipment according to claim 7, characterized in that: After curing, the film 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.

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