Peep-proof base film with fine shutter structure, and preparation process and equipment of peep-proof base film

Abstract

The invention discloses a peep-proof base film with a micro shutter structure and a preparation process and equipment, and belongs to the field of peep-proof films. The peep-proof base film with the micro louver structure comprises a polyurethane film and a peep-proof film, the peep-proof film is located on the lower end face of the polyurethane film, and a light-transmitting unit and a peep-proof unit which are sequentially arranged are arranged at the upper end of the peep-proof film. The problems that in the prior art, in the preparation process of the peep-proof film, a mechanical integrated forming machining technology is not adopted, so that the preparation efficiency is low, and the product quality is unstable are solved. The upper surface of the peep-proof film is pressed and formed through the shutter forming layer, the polyurethane film is pressed downwards, the surface of the polyurethane film is attached to the surface of the peep-proof film, a light-transmitting unit and a peep-proof unit are formed at the upper end of the peep-proof film through transfer printing of a UV structure, automatic machining forming is achieved through electrified equipment, and therefore the optimal machining efficiency is achieved. And the working effect is improved, and the product quality is effectively guaranteed.

Description

Technical Field

[0001] The present invention relates to the technical field of privacy-prevention films, and in particular to a privacy-prevention base film with a fine louver structure and a preparation process and equipment. Background Art

[0002] At present, there are some films with anti-peeping function on the market, which are called anti-peeping films. The principle is to use ultra-fine blinds optical technology to make the content displayed on the screen only visible to the user from the front, with a viewing area of ​​60 to 90 degrees. Anyone watching from the sides can only see a dark screen. It effectively protects commercial secrets and personal privacy, and users can use computers, mobile phones and other electronic products as they please in the office, on the road, in public places and in any environment.

[0003] In the prior art, for example, there is a Chinese patent with announcement number CN112123881B: a privacy film and a method for preparing the same. The technical solution of this patent eliminates the moiré and brushed pattern phenomena produced after the privacy film is bonded to the display screen, and increases the light transmittance by 3% to 10%, so that the display screen has high clarity and better privacy protection effect; the preparation method is simple, easy to implement and control, and convenient for industrialization.

[0004] However, in the above-mentioned technology, the existing anti-peep film preparation process does not adopt the mechanical integrated molding processing technology, resulting in low preparation efficiency and unstable product quality.

[0005] In view of these defects, it is necessary to design an anti-peep base film with a fine louver structure and a preparation process and equipment. Summary of the invention

[0006] The purpose of the present invention is to provide an anti-peep base film with a fine louver structure and a preparation process and equipment, which can solve the problem in the prior art that the mechanical integrated molding process is not adopted in the preparation process of the anti-peep film, resulting in low preparation efficiency and unstable product quality.

[0007] To achieve the above object, the present invention provides the following technical solution: an anti-peep base film with a fine louver structure, comprising:

[0008] A polyurethane film and an anti-peeping film, wherein the anti-peeping film is located on the lower end surface of the polyurethane film, and a light-transmitting unit and an anti-peeping unit are arranged in sequence on the upper end of the anti-peeping film;

[0009] The anti-peep base film with a fine louver structure is realized by a preparation device for the anti-peep base film with a fine louver structure, comprising:

[0010] A first winding roller and a second winding roller, wherein two first winding rollers for winding the polyurethane film are provided, and two second winding rollers for winding the privacy-preventing film are provided, the two second winding rollers are respectively located on both sides below the first winding roller, and a driving motor is provided outside the first winding roller;

[0011] A stamping jig for cutting the polyurethane film is located above the first winding roller, the stamping jig comprises a lifting frame and a sliding frame, the lifting frame is located inside the sliding frame and is slidably connected to the sliding frame;

[0012] A forming frame, which is used for curing and bonding the privacy film and is located below between the two second winding rollers, and the forming frame includes a material unloading box, and a movable material unloading plate for electrically adjusting the angle is installed inside the material unloading box;

[0013] A lifting mold frame is used for punching the privacy-preventing film and is located between the punching privacy-preventing film and the polyurethane film. A pressing mold is slidably connected inside the lifting mold frame.

[0014] Preferably, a device bracket is installed at the lower end of the stamping jig, a reinforcing rib is installed between the device bracket and the stamping jig, a fastening frame is welded between the upper end of the stamping jig and the reinforcing rib, and support bases are welded on both sides of the lower end of the device bracket.

[0015] Preferably, an integrally formed auxiliary bracket is provided on the outer side of the support base, the second winding roller is rotatably connected to the upper end of the auxiliary bracket via a bearing, and a first servo motor is installed on the outer side of the second winding roller, the motor shaft of the first servo motor is transmission-connected to the second winding roller via a coupling, and fixed frames are installed below both sides of the first winding roller.

[0016] Preferably, a hydraulic pump is installed at the upper end of the stamping jig, and a hydraulic cylinder is installed at the lower end of the hydraulic pump. The upper end of the hydraulic cylinder is connected to the stamping jig through a fixing screw, and the upper end surface of the lifting frame is provided with an integrally formed mounting groove. The lower end of the hydraulic cylinder extends into the mounting groove and is connected to the lifting frame through a fixing screw, and the sliding frame is welded to the device bracket.

[0017] Preferably, a limited slide rail is provided on the outside of the lifting frame, a cutting box is provided at the lower end of the lifting frame, the cutting box is connected to the lifting frame by fixing screws, the lower end face of the cutting box is fixedly connected to a cutting tool by a buckle, a warming pressure plate is provided inside the cutting box, a second servo motor is installed on the upper end face of the warming pressure plate, the second servo motor is embedded in the interior of the lifting frame and is connected to the lifting frame by fixing screws, and a threaded screw is connected to the lower end of the second servo motor, and the threaded screw extends to the interior of the warming pressure plate and is threadedly connected to the warming pressure plate, and guide rods are slidably connected to the interior of both sides of the warming pressure plate.

[0018] Preferably, monitoring boxes are installed on both sides of the device bracket, and the monitoring boxes are connected to the device bracket by fixing screws, and laser ranging sensors are installed on the lower end surfaces of the two monitoring boxes. The laser ranging sensors are used to detect the positions of the polyurethane film and the anti-peeping film, and the laser ranging sensors are electrically connected to the electrical equipment through the plc module.

[0019] Preferably, a fixing plate is installed between the bottom of the forming frame and the auxiliary bracket, and a driving electric box is installed on both sides of the lower end of the forming frame, an electric motor is installed inside the driving electric box, and the motor shaft of the electric motor extends to the outside of the driving electric box and is rotatably connected to the driving electric box through a bearing, and a movable roller is installed above the driving electric box, and a first electric cylinder is installed between the two ends of the movable roller and the driving electric box, the upper end of the first electric cylinder is rotatably connected to the movable roller through a rotating shaft, and the lower end of the first electric cylinder is fixedly connected to the motor shaft of the motor through a side magnetic locking shaft, and limiting rollers are installed on both sides of the upper end of the forming frame, a bearing seat is installed on the outer side of the limiting roller, and the limiting roller is rotatably connected to the forming frame through the bearing seat.

[0020] Preferably, the material discharge box is embedded in the interior of the forming frame and is connected to the forming frame by fixing screws, and motor boxes are installed on both sides of the lower end of the material discharge box, a rotating shaft is installed inside the material discharge box, the movable material discharge plate is movably connected to the material discharge box through the rotating shaft, and second electric cylinders are installed on both sides of the lower end of the movable material discharge plate, and both ends of the second electric cylinder are movably connected to the motor box and the movable material discharge plate through connecting ears.

[0021] Preferably, the interior of the lifting mold frame is provided with an integrally formed slide groove, the pressing mold extends to the interior of the lifting mold frame and is slidably connected to the lifting mold frame through the slide groove, the upper end surface of the pressing mold is installed with a glue box, the lower end surface of the glue box is provided with a glue outlet hole, and the interior of the glue outlet hole is provided with a solenoid valve, resistance heating tubes are installed on both sides of the exterior of the glue box, and an integrally formed blinds forming layer is provided on the lower end surface of the pressing mold, sliding holes are provided on both sides of the interior of the pressing mold, and a threaded hole is provided in the middle of the interior of the pressing mold, an electric lead screw and a sliding rod are installed on one side of the interior of the lifting mold frame, and the electric lead screw passes through the threaded hole and is threadedly connected to the pressing mold, the sliding rod passes through the sliding hole and is slidably connected to the pressing mold, and a third electric cylinder is installed on both sides of the lower side of the lifting mold frame, and a support plate is installed on one side of the lifting mold frame, and the support plate passes through the lifting mold frame and is slidably connected to the lifting mold frame.

[0022] A preparation process of an anti-peep base film with a fine louver structure comprises the following steps:

[0023] Step 1: Wrap the two ends of the polyurethane film around the outside of the two first winding rollers, and attach the polyurethane film to the top of the limiting roller and the bottom of the movable roller, and wrap the two ends of the anti-privacy film around the outside of the two second winding rollers;

[0024] Step 2: Adjust the first servo motor and the drive motor to drive the second winding roller and the first winding roller to rotate, so that the polyurethane film and the anti-privacy film move;

[0025] Step 3: The positions of the polyurethane film and the privacy film are monitored by a laser ranging sensor. When the intersection of the polyurethane film and the privacy film is complete, the second winding roller and the first winding roller stop rotating, and the third electric cylinder is retracted to drive the lifting mold frame and the pressing mold to press down the surface of the privacy film, and the upper surface of the pressing mold and the privacy film is heated by the resistance heating tube, and the upper surface of the privacy film is pressed and formed by the shutter forming layer;

[0026] Step 4: Open the solenoid valve, introduce the glue through the glue outlet hole, and shrink the pressing mold to the inside of the lifting mold frame through the electric screw. The second servo motor drives the threaded screw to make the temperature-increasing pressing plate press the polyurethane film downward, so that the surface of the polyurethane film is attached to the surface of the anti-privacy film. The upper end of the anti-privacy film is transferred by the UV structure to form a light-transmitting unit and an anti-privacy unit;

[0027] Step 5: Contract the temperature-increasing pressing plate and extend the hydraulic cylinder to drive the lifting frame down, so that the cutting tool cuts the polyurethane film and the anti-privacy film. The formed anti-privacy base film falls above the movable unloading plate. By adjusting the second electric cylinder, the movable unloading plate is driven to fold and unloading is carried out;

[0028] Step 6: Adjust the first servo motor and the drive motor again to drive the second winding roller and the first winding roller to rotate, so as to prepare the subsequent anti-peep base film.

[0029] Compared with the prior art, the present invention has the following beneficial effects:

[0030] 1. The anti-peeping base film with a fine louver structure and the preparation process and equipment can monitor the positions of the polyurethane film and the anti-peeping film through a laser ranging sensor during operation. When the intersection of the polyurethane film and the anti-peeping film is complete, the second winding roller and the first winding roller stop rotating, and the third electric cylinder is retracted to drive the lifting mold frame and the pressing mold to press down the surface of the anti-peeping film, and the pressing mold and the upper surface of the anti-peeping film are heated by the resistance heating tube, and the upper surface of the anti-peeping film is pressurized and formed by the louver forming layer, and the glue is introduced through the glue outlet hole, and the pressing mold is retracted to the inside of the lifting mold frame by the electric lead screw, and the threaded lead screw is driven by the second servo motor to make the warming pressure plate press down the polyurethane film, so that the surface of the polyurethane film is attached to the surface of the anti-peeping film, and the upper end of the anti-peeping film is formed into a light-transmitting unit and an anti-peeping unit through the transfer of the UV structure, and the electrified equipment is used for automatic processing to achieve the best processing efficiency, improve the working effect, and effectively ensure the product quality.

[0031] 2. The anti-peep base film with a fine louver structure and its preparation process and equipment. After the preparation, the base film can be moved down by shrinking the warming pressure plate and extending the hydraulic cylinder, so that the cutting tool can cut the polyurethane film and the anti-peep film. The formed anti-peep base film falls to the top of the movable unloading plate. By adjusting the second electric cylinder, the movable unloading plate can be folded to carry out unloading. The material collecting equipment can be set under the unloading box to realize automatic material collecting, reduce the number of working procedures, improve work efficiency, facilitate operation, and save labor costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 is an axonometric view of the present invention from the side;

[0033] Figure 2 It is an axonometric view of the present invention from above;

[0034] Figure 3 is an axonometric view of the present invention from the front;

[0035] Figure 4 An axonometric view of the present invention viewed from above;

[0036] Figure 5 It is an axonometric view of the front view of the punching jig of the present invention;

[0037] Figure 6 It is an axonometric view of the punching jig of the present invention when viewed from above;

[0038] Figure 7 This is a diagram of the internal structure of the punching jig of the present invention;

[0039] Figure 8 It is an axonometric view of the forming frame of the present invention from above;

[0040] Fig. 9 This is an axonometric view of the movable blanking plate of the present invention when blanking;

[0041] Fig.10 It is an axonometric view of the lifting mold frame of the present invention from the side;

[0042] Fig.11 It is an axonometric view of the pressing mold of the present invention when viewed from above;

[0043] Fig.12 It is a partial internal structure diagram of the basement membrane of the present invention.

[0044] In the figure: 1, device bracket; 101, support base; 102, auxiliary bracket; 103, reinforcing rib; 2, first winding roller; 201, fixing frame; 202, polyurethane film; 3, second winding roller; 301, anti-peep film; 3011, light transmission unit; 3012, anti-peep unit; 302, first servo motor; 4, stamping fixture; 401, fastening frame; 402, hydraulic pump; 403, hydraulic cylinder; 404, lifting frame; 4041, limit slide rail; 4042, mounting groove; 4043, cutting box; 4044, cutting tool; 4045, heating plate; 4046, second servo motor; 4047, guide Toward rod; 405, sliding frame; 5, monitoring box; 501, laser ranging sensor; 6, forming frame; 601, driving electric box; 602, first electric cylinder; 603, movable roller; 604, unloading box; 6041, movable unloading plate; 6042, motor box; 6043, second electric cylinder; 6044, rotating shaft; 7, limiting roller; 701, bearing seat; 8, lifting mold frame; 801, pressing mold; 8011, glue box; 8012, resistance heating tube; 8013, shutter forming layer; 8014, sliding hole; 8015, threaded hole; 8016, glue outlet hole; 802, support plate; 803, third electric cylinder. DETAILED DESCRIPTION

[0045] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the 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.

[0046] In order to solve the technical problem that in the prior art, the anti-peep film preparation process does not use the mechanical integrated molding process, resulting in low preparation efficiency and unstable product quality, please refer to Figure 1 - Figure 4 , Fig.10 , Fig.12 , providing the following technical solutions:

[0047] An anti-peep base film with a fine louver structure, comprising:

[0048] The polyurethane film 202 and the privacy film 301, wherein the privacy film 301 is located at the lower end surface of the polyurethane film 202, and the upper end of the privacy film 301 is provided with a light-transmitting unit 3011 and a privacy film 3012 arranged in sequence;

[0049] The anti-peep base film with a fine louver structure is realized by a preparation device for the anti-peep base film with a fine louver structure, comprising:

[0050] A first winding roller 2 and a second winding roller 3, two first winding rollers 2 for winding the polyurethane film 202 are provided, and two second winding rollers 3 for winding the anti-privacy film 301 are provided, the two second winding rollers 3 are respectively located at two sides below the first winding roller 2, and a driving motor is provided outside the first winding roller 2;

[0051] A punching jig 4 for cutting the polyurethane film 202 is located above the first winding roller 2. The punching jig 4 includes a lifting frame 404 and a sliding frame 405. The lifting frame 404 is located inside the sliding frame 405 and is slidably connected to the sliding frame 405.

[0052] A forming frame 6 for curing and bonding the privacy film is located below the two second winding rollers 3. The forming frame 6 includes a material box 604. A movable material box 6041 for electrically adjusting the angle is installed inside the material box 604.

[0053] The lifting mold frame 8 for punching the privacy film 301 is located between the punching privacy film 301 and the polyurethane film 202 , and a pressing mold 801 is slidably connected inside the lifting mold frame 8 .

[0054] Specifically, during operation, when the intersection of the polyurethane film 202 and the anti-peeping film 301 is complete, the second winding roller 3 and the first winding roller 2 stop rotating, driving the lifting mold frame 8 and the pressing mold 801 to press down the surface of the anti-peeping film 301, and the pressing mold 801 presses the upper surface of the anti-peeping film 301 to form it, and then presses down the polyurethane film 202 through the lifting frame 404, so that the surface of the polyurethane film 202 is attached to the surface of the anti-peeping film 301, and the upper end of the anti-peeping film 301 is formed into a light-transmitting unit 3011 and an anti-peeping unit 3012 through the transfer of the UV structure, and is automatically processed and formed through electrified equipment to achieve the best processing efficiency, improve the working effect, and effectively ensure product quality.

[0055] In order to solve the technical problem of the complicated and unstable structure of the preparation device in the prior art, please refer to Figure 1 - Figure 2 , providing the following technical solutions:

[0056] A device bracket 1 is installed at the lower end of the stamping jig 4, a reinforcing rib 103 is installed between the device bracket 1 and the stamping jig 4, a fastening frame 401 is welded between the upper end of the stamping jig 4 and the reinforcing rib 103, and a support base 101 is welded on both sides of the lower end of the device bracket 1.

[0057] An integrally formed auxiliary bracket 102 is provided on the outer side of the support base 101, and the second winding roller 3 is rotatably connected to the upper end of the auxiliary bracket 102 through a bearing, and a first servo motor 302 is installed on the outer side of the second winding roller 3, and the motor shaft of the first servo motor 302 is transmission-connected to the second winding roller 3 through a coupling, and fixed frames 201 are installed below both sides of the first winding roller 2.

[0058] Specifically, the position of the stamping jig 4 is limited by the reinforcing rib 103, and the second winding roller 3 is positioned by the supporting base 101 and the auxiliary bracket 102, so that the position of the second winding roller 3 remains stable and the working effect is improved. The fixed frame 201 cooperates with the first winding roller 2 to perform winding work.

[0059] In order to solve the technical problem in the prior art that after the anti-peep base film is formed, it is not convenient to unload the material and cannot be operated continuously, please refer to Figure 4 - Fig. 9 , providing the following technical solutions:

[0060] A hydraulic pump 402 is installed at the upper end of the stamping jig 4, and a hydraulic cylinder 403 is installed at the lower end of the hydraulic pump 402. The upper end of the hydraulic cylinder 403 is connected to the stamping jig 4 through a fixing screw. The upper end surface of the lifting frame 404 is provided with an integrally formed mounting groove 4042. The lower end of the hydraulic cylinder 403 extends to the inside of the mounting groove 4042 and is connected to the lifting frame 404 through a fixing screw. The sliding frame 405 is welded to the device bracket 1.

[0061] A limited slide rail 4041 is arranged on the outside of the lifting frame 404, and a cutting box 4043 is arranged at the lower end of the lifting frame 404. The cutting box 4043 is connected to the lifting frame 404 by fixing screws, and the lower end surface of the cutting box 4043 is fixedly connected with a cutting tool 4044 by a buckle, and a warming pressure plate 4045 is arranged inside the cutting box 4043. A second servo motor 4046 is installed on the upper end surface of the warming pressure plate 4045. The second servo motor 4046 is embedded in the interior of the lifting frame 404 and is connected to the lifting frame 404 by fixing screws, and a threaded screw is connected to the lower end of the second servo motor 4046, and the threaded screw extends to the interior of the warming pressure plate 4045 and is threadedly connected to the warming pressure plate 4045, and guide rods 4047 are slidably connected to the interior of both sides of the warming pressure plate 4045.

[0062] A fixing plate is installed between the bottom of the forming frame 6 and the auxiliary bracket 102, and a driving electric box 601 is installed on both sides of the lower end of the forming frame 6, and a motor is installed inside the driving electric box 601, and the motor shaft of the motor extends to the outside of the driving electric box 601 and is rotatably connected to the driving electric box 601 through a bearing, and a movable roller 603 is installed above the driving electric box 601, and a first electric cylinder 602 is installed between the movable roller 603 and the two ends and the driving electric box 601, the upper end of the first electric cylinder 602 is rotatably connected to the movable roller 603 through a rotating shaft, and the lower end of the first electric cylinder 602 is fixedly connected to the motor shaft of the motor through a side magnetic locking shaft, and limiting rollers 7 are installed on both sides of the upper end of the forming frame 6, and a bearing seat 701 is installed on the outer side of the limiting roller 7, and the limiting roller 7 is rotatably connected to the forming frame 6 through the bearing seat 701.

[0063] The material discharge box 604 is embedded in the molding frame 6 and connected to the molding frame 6 by fixing screws, and motor boxes 6042 are installed on both sides of the lower end of the material discharge box 604, and a rotating shaft 6044 is installed inside the material discharge box 604. The movable material discharge plate 6041 is movably connected to the material discharge box 604 through the rotating shaft 6044, and second electric cylinders 6043 are installed on both sides of the lower end of the movable material discharge plate 6041, and both ends of the second electric cylinder 6043 are movably connected to the motor box 6042 and the movable material discharge plate 6041 through connecting ears.

[0064] Specifically, after the preparation of the base film, the temperature-increasing pressure plate 4045 can be contracted and the hydraulic cylinder 403 can be extended to drive the lifting frame 404 to descend, so that the cutting tool 4044 cuts the polyurethane film 202 and the anti-peep film 301, and the formed anti-peep base film falls onto the movable unloading plate 6041. By adjusting the second electric cylinder 6043, the movable unloading plate 6041 can be driven to fold and unloading can be carried out. A material receiving device can be set under the unloading box 604, so as to realize automatic material receiving, reduce the number of working procedures, improve work efficiency, facilitate operation, and save labor costs. In addition, during the processing, the position of the movable roller 603 can be adjusted by adjusting the first electric cylinder 602 to facilitate auxiliary processing and improve the position stability of the film.

[0065] In order to solve the technical problem that the position of the base film cannot be guaranteed during the preparation process, which affects the operation accuracy, please refer to Figure 3 , providing the following technical solutions:

[0066] Monitoring boxes 5 are installed on both sides of the device bracket 1. The monitoring boxes 5 are connected to the device bracket 1 through fixing screws, and laser ranging sensors 501 are installed on the lower end surfaces of the two monitoring boxes 5. The laser ranging sensors 501 are used to detect the positions of the polyurethane film 202 and the anti-peep film 301. The laser ranging sensors 501 are electrically connected to the electrical equipment through the plc module.

[0067] Specifically, during operation, the positions of the polyurethane film 202 and the anti-peep film 301 can be monitored by the laser ranging sensor 501. When the intersection of the polyurethane film 202 and the anti-peep film 301 is complete, the second winding roller 3 and the first winding roller 2 stop rotating to perform automatic positioning.

[0068] In order to solve the technical problem of poor molding effect of privacy film in the prior art, please refer to Fig.10 - Fig.11 , providing the following technical solutions:

[0069] The lifting mold frame 8 is provided with an integrally formed slide groove inside, the pressing mold 801 extends to the inside of the lifting mold frame 8 and is slidably connected with the lifting mold frame 8 through the slide groove, the upper end surface of the pressing mold 801 is installed with a glue box 8011, the lower end surface of the glue box 8011 is provided with a glue outlet hole 8016, and the glue outlet hole 8016 is provided with a solenoid valve inside, the outer sides of the glue box 8011 are provided with resistance heating tubes 8012, and the lower end surface of the pressing mold 801 is provided with an integrally formed shutter molding layer 8013, the pressing mold 801 Sliding holes 8014 are provided on both sides of the interior, and a threaded hole 8015 is provided in the middle of the pressing mold 801. An electric lead screw and a sliding rod are installed on one side of the interior of the lifting mold frame 8, and the electric lead screw passes through the threaded hole 8015 and is threadedly connected to the pressing mold 801. The sliding rod passes through the sliding hole 8014 and is slidably connected to the pressing mold 801. A third electric cylinder 803 is installed on both sides of the lower side of the lifting mold frame 8, and a support plate 802 is installed on one side of the lifting mold frame 8. The support plate 802 passes through the lifting mold frame 8 and is slidably connected to the lifting mold frame 8.

[0070] Specifically, the third electric cylinder 803 can be contracted to drive the lifting mold frame 8 and the pressing mold 801 to press down the surface of the anti-peeping film 301, and the pressing mold 801 and the upper surface of the anti-peeping film 301 can be heated by the resistance heating tube 8012, and the upper surface of the anti-peeping film 301 can be pressurized and formed by the louver molding layer 8013. Then, the solenoid valve is opened, the glue is introduced through the glue outlet hole 8016, and the pressing mold 801 is contracted to the inside of the lifting mold frame 8 by the electric lead screw, so that the bonding work can be carried out and the storage is automated, which improves the work efficiency. The resistance heating tube 8012 and the introduced glue can ensure the bonding effect and improve the product quality.

[0071] See also Figure 1 - Fig.12 A preparation process of an anti-peep base film with a fine louver structure comprises the following steps:

[0072] Step 1: Wrap the two ends of the polyurethane film 202 around the outside of the two first winding rollers 2, and attach the polyurethane film 202 above the limiting roller 7 and below the movable roller 603, and wrap the two ends of the anti-privacy film 301 around the outside of the two second winding rollers 3;

[0073] Step 2: Adjust the first servo motor 302 and the driving motor to drive the second winding roller 3 and the first winding roller 2 to rotate, so that the polyurethane film 202 and the anti-privacy film 301 move;

[0074] Step 3: The positions of the polyurethane film 202 and the privacy film 301 are monitored by the laser ranging sensor 501. When the intersection of the polyurethane film 202 and the privacy film 301 is complete, the second winding roller 3 and the first winding roller 2 stop rotating, and the third electric cylinder 803 is retracted to drive the lifting mold frame 8 and the pressing mold 801 to press down the surface of the privacy film 301. The upper surfaces of the pressing mold 801 and the privacy film 301 are heated by the resistance heating tube 8012, and the upper surface of the privacy film 301 is pressed and formed by the shutter molding layer 8013.

[0075] Step 4: Open the solenoid valve, introduce glue through the glue outlet hole 8016, and shrink the pressing mold 801 to the inside of the lifting mold frame 8 through the electric screw, and drive the threaded screw through the second servo motor 4046 to make the temperature-increasing pressing plate 4045 press down the polyurethane film 202, so that the surface of the polyurethane film 202 is attached to the surface of the anti-peeping film 301, and the upper end of the anti-peeping film 301 is formed into a light-transmitting unit 3011 and an anti-peeping unit 3012 through the transfer of the UV structure;

[0076] Step 5: Contract the temperature-increasing pressing plate 4045 and extend the hydraulic cylinder 403 to drive the lifting frame 404 to descend, so that the cutting tool 4044 cuts the polyurethane film 202 and the anti-peep film 301, and the formed anti-peep base film falls onto the movable blanking plate 6041. By adjusting the second electric cylinder 6043, the movable blanking plate 6041 is driven to fold and perform blanking work;

[0077] Step 6: Adjust the first servo motor 302 and the driving motor again to drive the second winding roller 3 and the first winding roller 2 to rotate, so as to prepare the subsequent anti-peep base film.

[0078] Working principle: Wrap the two ends of the polyurethane film 202 around the outside of the two first winding rollers 2, and fit the polyurethane film 202 above the limiting roller 7 and below the movable roller 603, wrap the two ends of the anti-peep film 301 around the outside of the two second winding rollers 3, limit the position of the stamping jig 4 by the reinforcing ribs 103, and position the second winding roller 3 by the supporting base 101 and the auxiliary bracket 102, so that the position of the second winding roller 3 remains stable and the working effect is improved. The fixed frame 201 cooperates with the first winding roller 2 to perform the winding work, adjust the first servo motor 302 and the drive motor to drive the second winding roller 3 and the first winding roller 2 to rotate, so that the polyurethane film 202 can be wound around the first winding roller 2. The polyurethane film 202 and the privacy film 301 are moved. During operation, the positions of the polyurethane film 202 and the privacy film 301 can be monitored by the laser distance sensor 501. When the intersection of the polyurethane film 202 and the privacy film 301 is complete, the second winding roller 3 and the first winding roller 2 stop rotating, and automatic positioning is performed. The third electric cylinder 803 is retracted to drive the lifting mold frame 8 and the pressing mold 801 to press down the surface of the privacy film 301. The upper surfaces of the pressing mold 801 and the privacy film 301 are heated by the resistance heating tube 8012, and the upper surface of the privacy film 301 is pressed and formed by the shutter molding layer 8013, and the solenoid valve is opened. , the glue is introduced through the glue outlet hole 8016, and the electric screw is used to shrink the pressing mold 801 to the inside of the lifting mold frame 8, and the threaded screw is driven by the second servo motor 4046 to make the warming platen 4045 press down the polyurethane film 202, so that the surface of the polyurethane film 202 is attached to the surface of the anti-peeping film 301, and the upper end of the anti-peeping film 301 is formed into a light-transmitting unit 3011 and an anti-peeping unit 3012 through the transfer of the UV structure. After the base film is prepared, the warming platen 4045 can be shrunk and the hydraulic cylinder 403 can be extended to drive the lifting frame 404 to descend, so that the cutting tool 4044 cuts the polyurethane film 202 and the anti-peeping film 301, and the base film is formed. The final anti-peep base film falls onto the top of the movable unloading plate 6041, and the movable unloading plate 6041 is driven to fold by adjusting the second electric cylinder 6043 to carry out unloading work. The collecting equipment can be arranged under the unloading box 604, so as to realize automatic collecting work, reduce the working procedures, improve the working efficiency, facilitate the operation, and save the labor cost. In addition, during the processing, the position of the movable roller 603 can be adjusted by adjusting the first electric cylinder 602 to facilitate the auxiliary processing work and improve the position stability of the film. The first servo motor 302 and the driving motor are adjusted again to drive the second winding roller 3 and the first winding roller 2 to rotate, so as to prepare the subsequent anti-peep base film.

[0079] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0080] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A privacy-preventing base film with a fine louver structure, characterized in that: include: A polyurethane film (202) and an anti-peeping film (301), wherein the anti-peeping film (301) is located on the lower end surface of the polyurethane film (202), and the upper end of the anti-peeping film (301) is provided with a light-transmitting unit (3011) and an anti-peeping unit (3012) arranged in sequence; The anti-peep base film with a fine louver structure is realized by a preparation device for the anti-peep base film with a fine louver structure, comprising: A first winding roller (2) and a second winding roller (3), wherein two first winding rollers (2) for winding up the polyurethane film (202) are provided, and two second winding rollers (3) for winding up the anti-peeping film (301) are provided, the two second winding rollers (3) are respectively located on both sides below the first winding roller (2), and a driving motor is provided outside the first winding roller (2); A punching jig (4), the punching jig (4) for cutting the polyurethane film (202) is located above the first winding roller (2), the punching jig (4) comprises a lifting frame (404) and a sliding frame (405), the lifting frame (404) is located inside the sliding frame (405) and is slidably connected to the sliding frame (405); A forming frame (6), the forming frame (6) for curing and bonding the privacy film is located below between the two second winding rollers (3), the forming frame (6) comprises a material discharge box (604), and a movable material discharge plate (6041) for electrically adjusting the angle is installed inside the material discharge box (604); A lifting mold frame (8) is used for punching the anti-peeping film (301), and the lifting mold frame (8) is located between the punching anti-peeping film (301) and the polyurethane film (202). A pressing mold (801) is slidably connected inside the lifting mold frame (8).

2. The device for preparing a privacy-preventing base film with a fine louver structure according to claim 1, characterized in that: A device bracket (1) is installed at the lower end of the stamping jig (4), a reinforcing rib (103) is installed between the device bracket (1) and the stamping jig (4), a fastening frame (401) is welded between the upper end of the stamping jig (4) and the reinforcing rib (103), and support bases (101) are welded on both sides of the lower end of the device bracket (1).

3. The device for preparing a privacy-preventing base film with a fine louver structure according to claim 2, characterized in that: An integrally formed auxiliary bracket (102) is provided on the outer side of the support base (101); the second winding roller (3) is rotatably connected to the upper end of the auxiliary bracket (102) via a bearing; a first servo motor (302) is installed on the outer side of the second winding roller (3); the motor shaft of the first servo motor (302) is transmission-connected to the second winding roller (3) via a coupling; and fixed frames (201) are installed below both sides of the first winding roller (2).

4. The device for preparing a privacy-preventing base film with a fine louver structure according to claim 3, characterized in that: A hydraulic pump (402) is installed at the upper end of the stamping jig (4), and a hydraulic cylinder (403) is installed at the lower end of the hydraulic pump (402). The upper end of the hydraulic cylinder (403) is connected to the stamping jig (4) via a fixing screw. The upper end surface of the lifting frame (404) is provided with an integrally formed mounting groove (4042). The lower end of the hydraulic cylinder (403) extends into the mounting groove (4042) and is connected to the lifting frame (404) via a fixing screw. The sliding frame (405) is welded to the device bracket (1).

5. The device for preparing a privacy-preventing base film with a fine louver structure according to claim 4, characterized in that: The lifting frame (404) is provided with a limited slide rail (4041) on the outside, and a cutting box (4043) is provided at the lower end of the lifting frame (404). The cutting box (4043) is connected to the lifting frame (404) by fixing screws, and a cutting tool (4044) is fixedly connected to the lower end surface of the cutting box (4043) by a buckle, and a temperature increasing pressure plate (4045) is provided inside the cutting box (4043). A second servo motor (4046) is installed on the end surface. The second servo motor (4046) is embedded in the interior of the lifting frame (404) and is connected to the lifting frame (404) by fixing screws. A threaded screw is connected to the lower end of the second servo motor (4046). The threaded screw extends to the interior of the temperature increasing pressure plate (4045) and is threadedly connected to the temperature increasing pressure plate (4045). Guide rods (4047) are slidably connected to the interior of both sides of the temperature increasing pressure plate (4045).

6. The device for preparing a privacy-preventing base film with a fine louver structure according to claim 5, characterized in that: Monitoring boxes (5) are installed on both sides of the device bracket (1); the monitoring boxes (5) are connected to the device bracket (1) via fixing screws; and laser distance sensors (501) are installed on the lower end surfaces of the two monitoring boxes (5); the laser distance sensors (501) are used to detect the positions of the polyurethane film (202) and the anti-peep film (301); and the laser distance sensors (501) are electrically connected to the electrical equipment via a PLC module.

7. The device for preparing a privacy-preventing base film with a fine louver structure according to claim 6, characterized in that: A fixing plate is installed between the lower part of the forming frame (6) and the auxiliary bracket (102); a driving electric box (601) is installed on both sides of the lower end of the forming frame (6); a motor is installed inside the driving electric box (601); and the motor shaft of the motor extends to the outside of the driving electric box (601) and is rotatably connected to the driving electric box (601) through a bearing; a movable roller (603) is installed above the driving electric box (601); and the movable roller (603) and the driving electric box (601) are connected at both ends. 1), a first electric cylinder (602) is installed between the upper end of the first electric cylinder (602) and the movable roller (603) via a rotating shaft, and the lower end of the first electric cylinder (602) is fixedly connected to the motor shaft of the electric motor via a side magnetic locking shaft, and limiting rollers (7) are installed on both sides of the upper end of the forming frame (6), a bearing seat (701) is installed on the outer side of the limiting roller (7), and the limiting roller (7) is rotatably connected to the forming frame (6) via the bearing seat (701).

8. The device for preparing a privacy-preventing base film with a fine louver structure according to claim 7, characterized in that: The material discharge box (604) is embedded in the interior of the forming frame (6) and is connected to the forming frame (6) by fixing screws, and motor boxes (6042) are installed on both sides of the lower end of the material discharge box (604), and a rotating shaft (6044) is installed inside the material discharge box (604). The movable material discharge plate (6041) is movably connected to the material discharge box (604) through the rotating shaft (6044), and second electric cylinders (6043) are installed on both sides of the lower end of the movable material discharge plate (6041), and both ends of the second electric cylinder (6043) are movably connected to the motor box (6042) and the movable material discharge plate (6041) through connecting ears.

9. The device for preparing a privacy-preventing base film with a fine louver structure according to claim 8, characterized in that: The lifting mold frame (8) is provided with an integrally formed slide groove inside, the pressing mold (801) extends into the lifting mold frame (8) and is slidably connected to the lifting mold frame (8) through the slide groove, the upper end surface of the pressing mold (801) is provided with a glue box (8011), the lower end surface of the glue box (8011) is provided with a glue outlet hole (8016), and the glue outlet hole (8016) is provided with a solenoid valve inside, the two sides of the glue box (8011) are provided with resistance heating tubes (8012), and the lower end surface of the pressing mold (801) is provided with an integrally formed blind molding layer (8013), the pressing mold (801 ) are provided with sliding holes (8014) on both sides of the interior, and a threaded hole (8015) is provided in the middle of the pressing mold (801); an electric lead screw and a sliding rod are installed on one side of the interior of the lifting mold frame (8), and the electric lead screw passes through the threaded hole (8015) and is threadedly connected to the pressing mold (801); the sliding rod passes through the sliding hole (8014) and is slidably connected to the pressing mold (801); a third electric cylinder (803) is installed on both sides of the lower side of the lifting mold frame (8); a support plate (802) is installed on one side of the lifting mold frame (8), and the support plate (802) passes through the lifting mold frame (8) and is slidably connected to the lifting mold frame (8).

10. A process for preparing the anti-peep base film with a fine louver structure according to claim 9, characterized in that: The steps include: Step 1: Wrapping the two ends of the polyurethane film (202) around the outside of the two first winding rollers (2), and attaching the polyurethane film (202) above the limiting roller (7) and below the movable roller (603), and wrapping the two ends of the anti-privacy film (301) around the outside of the two second winding rollers (3); Step 2: adjusting the first servo motor (302) and the driving motor to drive the second winding roller (3) and the first winding roller (2) to rotate, so that the polyurethane film (202) and the anti-privacy film (301) move; Step 3: The positions of the polyurethane film (202) and the anti-privacy film (301) are monitored by a laser distance measuring sensor (501). When the intersection of the polyurethane film (202) and the anti-privacy film (301) is complete, the second winding roller (3) and the first winding roller (2) stop rotating, and the third electric cylinder (803) is retracted to drive the lifting mold frame (8) and the pressing mold (801) to press down the surface of the anti-privacy film (301). The upper surfaces of the pressing mold (801) and the anti-privacy film (301) are heated by the resistance heating tube (8012), and the upper surface of the anti-privacy film (301) is pressed and formed by the shutter molding layer (8013); Step 4: Open the solenoid valve, introduce glue through the glue outlet hole (8016), and shrink the pressing mold (801) to the inside of the lifting mold frame (8) through the electric screw, and drive the threaded screw through the second servo motor (4046) to make the temperature-increasing pressure plate (4045) press down the polyurethane film (202), so that the surface of the polyurethane film (202) is attached to the surface of the anti-peeping film (301), and the upper end of the anti-peeping film (301) is formed into a light-transmitting unit (3011) and an anti-peeping unit (3012) through the transfer of the UV structure; Step 5: Contract the temperature-increasing pressure plate (4045) and extend the hydraulic cylinder (403) to drive the lifting frame (404) to descend, so that the cutting tool (4044) cuts the polyurethane film (202) and the anti-peep film (301), and the formed anti-peep base film falls onto the movable unloading plate (6041). By adjusting the second electric cylinder (6043), the movable unloading plate (6041) is driven to fold and unloading is performed; Step six: re-adjust the first servo motor (302) and the drive motor to drive the second winding roller (3) and the first winding roller (2) to rotate, so as to prepare the subsequent anti-peep base film.

Images