Vacuum compaction equipment for preparing peep-proof film and peep-proof film

Abstract

The invention relates to the technical field of optical film preparation, in particular to vacuum compaction equipment for peep-proof film preparation and a peep-proof film, and the vacuum compaction equipment comprises a vacuum laminating machine, a laminating plate, a heating plate, a hydraulic push rod, a pressurizing assembly, a pressurizing ejector rod, a fixing assembly and a clamping plate; a working chamber is arranged on the vacuum laminating machine; the laminated plate is located in the working chamber, a heating plate is fixedly mounted on the laminated plate, and an adjusting cavity is formed in the laminated plate; the hydraulic push rod is mounted at the bottom end of the working chamber and connected with the laminate; when the vacuum laminating machine works, the laminating plate drives the pressurizing assembly through the driving shaft, the pressurizing assembly drives the pressurizing ejector rod to stretch out, the fixing assembly is located in the adjusting cavity, the clamping plate is installed in the adjusting cavity in a sliding mode, and when the pressurizing ejector rod stretches out, the pressurizing assembly drives the pressurizing ejector rod to stretch out. According to the peep-proof film rotating mechanism, the uniformity of pressure of the vacuum laminating machine is improved through rotating motion, and then the production quality of peep-proof films is improved.

Description

Technical Field

[0001] The invention relates to the technical field of optical film preparation, in particular to vacuum compacting equipment for preparing an anti-peep film and the anti-peep film. Background Art

[0002] The core principle of the privacy film is the ultra-fine blinds optical technology. When light shines on the privacy film, most of the light is blocked by the grating, and only a small part of the light that shines basically vertically on the film can be reflected from the gap, thereby reducing the visible range of the screen and preventing peeping.

[0003] In the production process of tempered privacy film, first select the appropriate material as the substrate of the tempered privacy film, then evenly coat the special privacy coating material on the surface of the substrate, and then stack the required coating and tempered glass in sequence, and send the coated tempered privacy film into the vacuum laminator for vacuum compaction; the vacuum laminator is mainly composed of a vacuum pump, a hydraulic push rod, a laminating plate and a heating plate. When the vacuum laminator is in use, first place the tempered privacy film on the laminating plate, and then use the vacuum pump to evacuate air to create a vacuum environment, the hydraulic push rod pushes the laminating plate to slide, the pressure plates fit together and squeeze each other to pressurize the privacy film on it, and at the same time the heating plate heats the privacy film to promote the bonding between the layers of the privacy film.

[0004] During the process of vacuum compaction of the privacy film by the laminate, the hydraulic push rod located at the center of the laminate pushes the laminate upward to slide so that the adjacent laminates fit together to vacuum compact the privacy film. The force of the hydraulic push rod diffuses from the center to the surroundings, resulting in a smaller lamination pressure in the edge area of ​​the laminate, which causes uneven force on the privacy film during the compaction process and causes warping of the privacy film.

[0005] To this end, the prior art proposes a vacuum laminator, publication number: CN104972732B. This invention uses a pin to push out the hot pressing plate to separate the laminate from the hot pressing plate, and then extracts the bubbles in the workpiece to improve the yield rate. However, it still does not solve the problem of uneven lamination pressure, which causes the four corners of the tempered privacy film to warp.

[0006] In view of this, we propose a vacuum compaction device for preparing an anti-peep film and the anti-peep film. Summary of the invention

[0007] The object of the present invention is to provide a vacuum compacting device for preparing a privacy film and the privacy film, so as to solve the problems raised in the above background technology.

[0008] To achieve the above object, the present invention provides the following technical solutions: A vacuum compaction device for preparing an anti-peep film and the anti-peep film, comprising a vacuum laminator, a laminate, a heating plate, a hydraulic push rod, a pressurizing component, a booster push rod, a fixing component and a clamping plate; the vacuum laminator is provided with a working room, a vacuum pump is installed in the working room, and is used to provide a vacuum environment for the vacuum laminator when it is working, thereby reducing the bubble phenomenon after the tempered anti-peep film is formed and reducing the warping of the material, thereby improving the quality of the tempered anti-peep film; the laminate is located in the working room, a heating plate is fixedly installed on the laminate, the heating plate is used to heat the anti-peep film, thereby making it easier for the layers of the anti-peep film to fit tightly under the action of pressure, thereby improving the compaction effect of the anti-peep film, and an adjusting cavity is provided on the laminate; the hydraulic push rod is installed at the bottom end of the working room and is connected to the laminate; the hydraulic push rod is used to push the laminate to slide, thereby making adjacent laminates fit each other, and vacuum compacting the anti-peep film between the two laminates; The pressurizing assembly is installed on the laminate, and the pressurizing push rod is located in the adjusting chamber. When the vacuum laminator is working, the laminate drives the pressurizing push rod to extend through the pressurizing assembly, and the pressurizing push rod provides a force opposite to the hydraulic push rod, thereby increasing the interaction force between adjacent laminates, thereby improving the compaction effect of the anti-peep film; the fixing assembly is located in the adjusting chamber, and the clamping plate is slidably installed in the adjusting chamber. When the pressurizing push rod is extended, the pressurizing push rod drives the clamping plate to extend through the fixing assembly, and the clamping plate is used to ensure the stability of the pressurizing assembly, thereby ensuring the pressurization effect of the pressurizing push rod and ensuring the stability of the pressurization.

[0009] Preferably, the laminating plate is divided into an active plate, a fixed plate and a driven plate, the active plate and the hydraulic push rod, the fixed plate are located at the top of the working room, and a driven plate is arranged in a linear array between the active plate and the fixed plate. When the vacuum laminator is working, the hydraulic push rod pushes the active plate to slide vertically upward, the active plate contacts the driven plate, and the active plate pushes the driven plate to move synchronously until the driven plate contacts the fixed plate, thereby compacting and bonding the privacy films between the laminating plates.

[0010] Furthermore, the active plate is divided into a top plate and a placement plate; the top plate has a grid array with pressure-equalizing bumps, and the placement plate is provided with recessed holes that cooperate with the pressure-equalizing bumps. When the hydraulic push rod pushes the fixed plate, it first pushes the top plate, and the top plate then pushes the placement plate to move synchronously. In the process of pushing the placement plate, the top plate evenly disperses the thrust of the hydraulic push rod to the entire placement plate through the uniform bumps, so that the fixed plate is evenly stressed, thereby ensuring that the laminate maintains uniform stress during vacuum compaction and improving the quality of the anti-peep film.

[0011] Preferably, the pressurizing assembly includes a sleeve, a driving wheel, an active wheel, a rotating drum, a driven wheel and a telescopic mechanism; the driving shaft is fixedly mounted on the laminate, and a driving block is provided on the driving shaft; the sleeve is rotatably mounted in the adjusting cavity, the sleeve is coaxially mounted with the driving shaft, and a driving groove is provided on the inner wall of the sleeve. When the active plate moves vertically upward under the action of the hydraulic push rod, the driving shaft on the active plate enters the adjusting cavity of the adjacent driven plate, and the driving shaft contacts the sleeve in the adjusting cavity. The driving shaft squeezes the driving groove on the inner wall of the sleeve through the driving block thereon, and then drives the sleeve to rotate through the mutual squeezing of the driving block and the driving groove; the driving wheel is fixedly mounted on the bottom of the sleeve A driving wheel is provided on one side of the driving wheel; a rotating drum is fixedly installed on the driving wheel, and an extrusion groove is opened in the rotating drum; the boosting push rod is slidably installed in the rotating drum, and an extrusion block cooperating with the extrusion groove is provided on the top of the boosting push rod. The shaft sleeve rotates to drive the driving wheel fixedly connected with it to rotate synchronously, and the driving wheel meshes with the driving wheel to drive the driving wheel to rotate, and the driving wheel drives the rotating drum to rotate synchronously, and the rotating drum pushes the extrusion block on the boosting push rod through the extrusion groove, thereby driving the boosting push rod to be pushed out, and the boosting push rod pressurizes the four corners of the laminate below, and then cooperates with the hydraulic push rod below to make the anti-peep film on the laminate evenly stressed, thereby ensuring the uniformity of vacuum compaction and improving the production quality of the anti-peep film.

[0012] Preferably, a buffer spring is provided above the driving shaft and installed in the adjusting cavity; the buffer spring is used for buffering and shock absorption and, at the same time, storing force to enhance the pressure between the laminates; when the driving shaft moves synchronously with the laminate below and enters the adjusting cavity of the upper laminate, the driving shaft gradually squeezes the buffer spring, and the buffer spring absorbs the force of the driving shaft and transfers the force to the laminate, thereby increasing the force applied to the laminate; at the same time, when the lower laminate contacts and moves synchronously with the upper laminate, the buffer spring can absorb the interaction force between the two laminates, thereby ensuring the stability of the movement of the laminate, thereby avoiding displacement of the driving shaft and causing uneven force.

[0013] Preferably, the bottom end of the booster rod is an elastic gasket, which can undergo elastic deformation and store elastic energy, thereby enhancing the force of the booster rod on the laminate below, and then cooperating with the upward force of the hydraulic push rod to form a pair of forces in opposite directions, thereby improving the vacuum compaction effect of the laminate on the anti-peep film. At the same time, the booster rod is located at the four top corners of the laminate, which ensures the uniformity of the pressurization and improves the compaction quality.

[0014] Preferably, the fixing assembly includes a pressure rod, a return spring, a driven wheel, a turntable, a fixed wheel and a limit column; the pressure rod is slidably installed in the adjustment cavity, and the pressure rod is connected to the inner wall of the adjustment cavity by a return spring; the driven wheel and the pressure rod are coaxially installed, and the booster push rod is extended under the action of the rotating drum and enters the adjustment cavity of the laminate below. When the booster push rod moves downward, the extrusion pressure rod moves downward synchronously, and the pressure rod squeezes the screw groove on the inner side of the driven wheel through the convex block thereon, thereby driving the driven wheel to rotate, and a turntable is provided on one side of the driven wheel; a slide groove is provided on the turntable; The clamping plate is located above the turntable; the fixed wheel is located above the clamping plate, and a limiting groove is provided on the fixed wheel; the limiting column is fixedly connected to the clamping plate, one end of the limiting column is connected to the sliding groove, and the other end of the limiting column is connected to the limiting groove, the driven wheel rotates and engages with the turntable, thereby driving the turntable to rotate, and the limiting column is pushed through the sliding groove when the turntable rotates, and the limiting column ensures the stability of its own movement under the action of the limiting groove of the fixed wheel, and the limiting column will drive the clamping plate to extend out to fix the driving shaft below during the sliding process, thereby ensuring the stability of the connection between adjacent laminates.

[0015] Preferably, the clamping plate is provided with friction lines; the friction lines are used to increase the friction between the clamping block and the drive shaft, thereby enhancing the locking force of the clamping plate on the drive shaft, thereby ensuring the stability of the drive shaft, ensuring the stability of the pressurization of the booster push rod, and ensuring the compaction quality.

[0016] A privacy film, which is a multi-layer structure film with a PC board as a substrate; the privacy film comprises an anti-fingerprint oil stain layer, a tempered glass, a silk-screen color layer, an anti-peep AB glue and a PC board from top to bottom; the anti-fingerprint oil stain layer reduces the adhesion of fingerprints and oil stains on the privacy film and improves the neatness of the privacy film; the tempered glass is used to enhance the quality and strength of the privacy film and prevent the privacy film from being easily damaged; the silk-screen color layer and the anti-peep AB glue are used to achieve the privacy effect of the privacy film.

[0017] Preferably, the anti-peeping AB glue has a multi-layer structure, the innermost layer and the outermost layer of the anti-peeping AB glue are both PET release films, and an OCA layer, an anti-peeping layer, a PET film and a silicone layer are arranged between the two PET release films from the outside to the inside; the anti-peeping layer adopts the principle of a Venetian blind to achieve the anti-peeping effect of the anti-peeping film, the OCA surface of the anti-peeping AB glue is used to bond tempered glass, and the silicone surface is bonded to the PC board.

[0018] Compared with the prior art, the present invention has the following beneficial effects: The invention discloses a vacuum compacting device for preparing a privacy film and the privacy film. The cooperation of a pressurizing component and a fixing component ensures uniformity of force on the privacy film during vacuum compaction, thereby ensuring the compaction quality of the privacy film.

[0019] The invention discloses a vacuum compacting device for preparing a privacy film and the privacy film. The invention improves the acting force between adjacent laminates by a pressurizing component, thereby avoiding insufficient layer pressure, which results in loose fitting between the layers of the privacy film.

[0020] The invention discloses a vacuum compaction device for preparing a privacy film and the privacy film. The invention improves the stability of the movement of the laminated boards by fixing components, thereby ensuring the stability of the lamination pressure between the laminated boards and improving the quality of vacuum compaction. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 A half-section view of the active plate of the present invention; Figure 3 A half-section view of a driven plate of the present invention; Figure 4 For the present invention Figure 3 A local enlarged view of point A; Figure 5 It is a schematic diagram of the laminate matching of the present invention; Figure 6 For the present invention Figure 5 A local enlarged view of point B; Figure 7 It is a schematic diagram of the assembly coordination of the present invention; Figure 8 A half-section view of a pressurizing assembly of the present invention; Fig. 9 A half-section view of a fixing assembly of the present invention; Fig.10 A schematic diagram of a clamping plate of the present invention; Fig.11 is a schematic diagram of the privacy film of the present invention; Fig.12 It is a schematic diagram of the anti-peep AB glue of the present invention.

[0022] In the figure: 1. Vacuum laminator; 11. Workroom; 2. laminated plate; 21. regulating cavity; 221. buffer spring; 22. active plate; 221. top plate; 222. pressure-equalizing convex block; 223. placement plate; 224. concave hole; 23. fixed plate; 24. driven plate; 3. Heating plate; 4. Hydraulic push rod; 5. Pressurizing assembly; 51. Driving shaft; 511. Driving block; 52. Bushing; 521. Driving groove; 53. Driving wheel; 54. Driving wheel; 55. Rotating drum; 551. Extrusion groove; 6. booster push rod; 61. extrusion block; 62. elastic gasket; 7. Fixed assembly; 71. Pressure rod; 72. Return spring; 73. Driven wheel; 74. Turntable; 741. Slideway; 75. Fixed wheel; 751. Limiting groove; 76. Limiting column; 8. Clamping plate; 81. Friction lines; 9. Anti-peep film; 91. Anti-fingerprint and oil-proof layer; 92. Tempered glass; 93. Silk-screen color layer; 94. Anti-peep AB glue; 941. OCA layer; 942. Anti-peep layer; 943. PET film; 944. Silicone layer; 95. PC board. DETAILED DESCRIPTION

[0023] 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.

[0024] A technical solution provided by the present invention: like Figures 1 to 12 As shown, the vacuum compacting equipment for preparing the privacy film and the privacy film include a vacuum laminator 1, a laminating plate 2, a heating plate 3, a hydraulic push rod 4, a pressurizing assembly 5, a pressurizing ejector rod 6, a fixing assembly 7 and a clamping plate 8; the vacuum laminator 1 is provided with a studio 11, and a vacuum pump is installed in the studio 11 to provide a vacuum environment for the vacuum laminator 1 when it is working, thereby reducing the bubble phenomenon after the tempered privacy film is formed and reducing the warping of the material, thereby improving the quality of the tempered privacy film; the laminating plate 2 is located in the studio 11, and a heating plate 3 is fixedly installed on the laminating plate 2, and the heating plate 3 is used to heat the privacy film, thereby making the privacy film The layers of the peep film are more likely to fit tightly under the action of pressure, thereby improving the compaction effect of the peep film. An adjustment cavity 21 is provided on the laminate 2; the hydraulic push rod 4 is installed at the bottom of the studio 11 and connected to the laminate 2; the hydraulic push rod 4 is used to push the laminate 2 to slide, thereby making the adjacent laminates 2 fit each other, and vacuum compacting the peep film between the two laminates 2; the hydraulic push rod 4 pushes the laminate 2 and pulls the laminate 2 to reset, which is the prior art. When the hydraulic push rod 4 pushes the laminate 2 to move upward, the laminate 2 fits layer by layer from bottom to top; when the hydraulic push rod 4 pushes the laminate 2 to reset, the laminate 2 separates step by step from top to bottom; The laminate 2 is divided into an active plate 22, a fixed plate 23 and a driven plate 24. The active plate 22 and the hydraulic push rod 4, the fixed plate 23 are located at the top of the studio 11, and a driven plate 24 is arranged in a linear array between the active plate 22 and the fixed plate 23. When the vacuum laminator 1 is working, the hydraulic push rod 4 pushes the active plate 22 to slide vertically upward, the active plate 22 contacts the driven plate 24, and the active plate 22 pushes the driven plate 24 to move synchronously until the driven plate 24 contacts the fixed plate 23, so as to compact and fit the anti-peep film between each laminate 2; the active plate 22 is divided into a top plate 221 and a placing plate 222. The top plate 221 has a grid array with pressure-equalizing bumps 222, and the placement plate 223 is provided with a concave hole 224 that cooperates with the pressure-equalizing bumps 222. When the hydraulic push rod 4 pushes the fixed plate 23, it first pushes the top plate 221, and the top plate 221 then pushes the placement plate 223 to move synchronously. In the process of pushing the placement plate 223, the top plate 221 evenly disperses the thrust of the hydraulic push rod 4 to the entire placement plate 223 through the uniform bumps, so that the fixed plate 23 is evenly stressed, thereby ensuring that the laminate 2 is evenly stressed during vacuum compaction and improving the quality of the anti-peep film. The pressurizing component 5 is installed on the laminate 2, and the booster rod 6 is located in the adjusting chamber 21. When the vacuum laminator 1 is working, the laminate 2 drives the pressurizing component 5 through the driving shaft 51, and the pressurizing component 5 drives the booster rod 6 to extend. The booster rod 6 provides a force opposite to the hydraulic push rod 4, thereby increasing the interaction force between adjacent laminates 2, thereby improving the compaction effect of the anti-peep film; the fixing component 7 is located in the adjusting chamber 21, and the clamping plate 8 is slidably installed in the adjusting chamber 21. When the booster rod 6 is extended, the booster rod 6 drives the clamping plate 8 to extend through the fixing component 7. The clamping plate 8 is used to ensure the stability of the pressurizing component 5, thereby ensuring the pressurization effect of the booster rod 6 and ensuring the stability of the pressurization.

[0025] The driving shaft 51 is fixedly installed on the laminate 2, and a driving block 511 is provided on the driving shaft 51; the shaft sleeve 52 is rotatably installed in the adjusting cavity 21, and the shaft sleeve 52 is coaxially installed with the driving shaft 51. A driving groove 521 is opened on the inner wall of the shaft sleeve 52. When the active plate 22 moves vertically upward under the action of the hydraulic push rod 4, the driving shaft 51 on the active plate 22 enters the adjusting cavity 21 of the adjacent driven plate 24, and a buffer spring 221 is provided above the driving shaft 51, and the buffer spring 221 is installed in the adjusting cavity 21; the buffer spring 221 is used for buffering and shock absorption, and at the same time, it accumulates force to enhance the pressure between the laminates 2; when the driving shaft 51 follows the laminate 2 below synchronously When moving into the adjustment cavity 21 of the upper laminate 2, the driving shaft 51 gradually squeezes the buffer spring 221, and the buffer spring 221 absorbs the force of the driving shaft 51 and transmits the force to the laminate 2, thereby increasing the force on the laminate 2. At the same time, when the lower laminate 2 contacts and moves synchronously with the upper laminate 2, the buffer spring 221 can absorb the interaction force between the two laminates 2, thereby ensuring the stability of the movement of the laminate 2, thereby avoiding the displacement of the driving shaft 51 and causing uneven force; the driving shaft 51 contacts with the shaft sleeve 52 in the adjustment cavity 21, and the driving shaft 51 squeezes the driving groove 521 on the inner wall of the shaft sleeve 52 through the driving block 511 thereon, and then passes through the driving block 51 The mutual extrusion between the drive wheel 53 and the driving groove 521 drives the shaft sleeve 51 to rotate; the driving wheel 53 is fixedly installed at the bottom of the shaft sleeve 52, and a driving wheel 54 is provided on one side of the driving wheel 53; a rotating drum 55 is fixedly installed on the driving wheel 54, and an extrusion groove 551 is provided in the rotating drum 55; the booster push rod 6 is slidably installed in the rotating drum 55, and an extrusion block 61 matching the extrusion groove 551 is provided on the top of the booster push rod 6. The rotation of the shaft sleeve 52 drives the driving wheel 53 fixedly connected thereto to rotate synchronously, the driving wheel 53 meshes with the driving wheel 54 to drive the driving wheel 54 to rotate, and the driving wheel 54 drives the rotating drum 55 to rotate synchronously, and the rotating drum 55 pushes the extrusion block 61 on the booster push rod 6 through the extrusion groove 551 1, and then drive the booster push rod 6 to be pushed out, the booster push rod 6 pressurizes the four corners of the laminate 2 below, and then cooperates with the hydraulic push rod 4 below to make the anti-peep film on the laminate 2 evenly stressed, ensure the uniformity of vacuum compaction, and improve the production quality of the anti-peep film; the bottom end of the booster push rod 6 is an elastic gasket 62, the elastic gasket 62 can undergo elastic deformation, perform elastic energy storage, and then enhance the force of the booster push rod 6 on the laminate 2 below, and then cooperate with the upward force of the hydraulic push rod 4 to form a pair of forces in opposite directions, thereby improving the vacuum compaction effect of the laminate 2 on the anti-peep film. At the same time, the booster push rod 6 is located at the four top corners of the laminate 2, which ensures the uniformity of pressurization and improves the compaction quality; When the laminate 2 moves vertically upward under the action of the hydraulic push rod 4, the laminate 2 drives the drive shaft 51 fixed thereon to move synchronously, and the drive shaft 51 enters the adjusting chamber 21 of the upper laminate 2, and the drive shaft 51 contacts the bushing 52 in the adjusting chamber 21. The drive shaft 51 squeezes the drive groove 521 on the bushing 52 through the drive block 511 thereon, thereby causing the drive wheel 53 to rotate, and the drive wheel 53 rotates and engages with the driving wheel 54, and the driving wheel 54 rotates, and the driving wheel 54 drives the rotating drum 55 to rotate synchronously, and the rotating drum 55 pushes the extrusion block 61 on the boost push rod 6 through the extrusion groove 551 opened thereon, thereby pushing the boost push rod 6 to extend, and the boost push rod 6 extends into the adjusting chamber 21 of the lower laminate 2, and at the same time, the drive shaft 51 squeezes the buffer spring 221 in the adjusting chamber 21 of the upper laminate 2.

[0026] The pressure rod 71 is slidably installed in the adjustment chamber 21, and the pressure rod 71 is connected to the inner wall of the adjustment chamber 21 by a return spring 72, and the return spring 72 is used to realize the return movement; the driven wheel 73 is coaxially installed with the pressure rod 71, and the booster push rod 6 is extended under the action of the rotating drum 55 and enters the adjustment chamber 21 of the lower laminate 2. When the booster push rod 6 moves downward, the extrusion pressure rod 71 moves downward synchronously, and the pressure rod 71 squeezes the screw groove on the inner side of the driven wheel 73 through the convex block thereon, thereby driving the driven wheel 73 to rotate, and a turntable 74 is provided on one side of the driven wheel 73; a slide groove 741 is provided on the turntable 74; the clamping plate 8 is located above the turntable 74; the fixed wheel 75 is located above the clamping plate 8, and a limiting groove 751 is provided on the fixed wheel 75; the limiting column 76 is fixedly connected to the clamping plate 8, and one end of the limiting column 76 is connected to the slide groove 741 The other end of the limit column 76 is connected to the limit groove 751, the driven wheel 73 rotates and engages with the turntable 74, thereby driving the turntable 74 to rotate. When the turntable 74 rotates, the limit column 76 is pushed through the slide groove 741. The limit column 76 ensures the stability of its own movement under the action of the limit groove 751 of the fixed wheel 75. During the sliding process of the limit column 76, the clamping plate 8 is driven to extend to fix the driving shaft 51 below, thereby ensuring the stability of the connection between the adjacent laminates 2; the clamping plate 8 is provided with a friction pattern 81; the friction pattern 81 is used to increase the friction force between the clamping block and the driving shaft 51, thereby enhancing the locking force of the clamping plate 8 on the driving shaft 51, thereby ensuring the stability of the driving shaft 51, ensuring the stability of the pressurization of the booster push rod 6, and ensuring the compaction quality. The friction force between the clamping block and the driving shaft 51 is less than the force of the hydraulic push rod 4 pulling the laminate 2 to reset; When the booster push rod 6 moves vertically downward, it contacts the pressure rod 71, pushing the pressure rod 71 to move in the same direction. The pressure rod 71 squeezes the return spring 72. The return spring 72 is in a compressed state. The pressure rod 71 squeezes the screw groove inside the driven wheel 73 through the protrusion thereon to drive the driven wheel 73 to rotate. The rotation of the driven wheel 73 drives the turntable 74 engaged with it to rotate. The turntable 74 pushes the limit column 76 to slide through the slide groove 741. The limit column 76 drives the clamping plate 8 to extend to fix and lock the drive shaft 51.

[0027] When the vacuum compacting device for preparing the privacy film of the present invention and the privacy film are used, the staff starts the vacuum laminator 1, the hydraulic push rod 4 pushes the laminate 2 to move vertically upward, the laminate 2 drives the drive shaft 51 fixedly connected thereto to move synchronously, the drive shaft 51 enters the adjustment cavity 21 of the upper laminate 2, the drive shaft 51 squeezes the drive groove 521 on the shaft sleeve 52 through the drive block 511 thereon, thereby causing the drive wheel 53 to rotate, the rotation of the drive wheel 53 drives the driving wheel 54 to rotate, and the driving wheel 54 drives the driving wheel 54 to rotate. The movable drum 55 rotates synchronously, and the drum 55 pushes the booster push rod 6 to extend through the extrusion groove 551. The booster push rod 6 extends into the adjustment cavity 21 of the lower laminate 2, and the booster push rod 6 pushes the pressure rod 71 to move in the same direction. The pressure rod 71 compresses the reset spring 72, and the pressure rod 71 drives the driven wheel 73 to rotate. The rotation of the driven wheel 73 drives the rotating disk 74 engaged therewith to rotate, and the rotating disk 74 pushes the limiting column 76 to slide through the sliding groove 741, and the limiting column 76 drives the clamping plate 8 to extend to fix and lock the driving shaft 51; When the vacuum compaction of the privacy film is completed, the hydraulic push rod 4 pulls the laminate 2 to reset, and the laminate 2 drives the drive shaft 51 to move downward synchronously, and the drive shaft 51 moves in the opposite direction, driving the sleeve 51 to reverse, and the sleeve 52 drives the drive wheel 53 to reverse, and the drive wheel 53 drives the active wheel 54 to reverse, and the active wheel 54 drives the rotating drum 55 to reverse, and the rotating drum 55 pulls the booster push rod 6 to reset, and the booster push rod 6 no longer squeezes the pressure rod 71, and the pressure rod 71 is reset under the action of the reset spring 72, and the pressure rod 71 drives the driven wheel 73 to reverse, and the driven wheel 73 drives the turntable 74 to reverse, and the turntable 74 drives the limit column 76 to reset, and the limit column 76 pulls the clamping plate 8 to reset.

[0028] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the present invention and are not intended to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A vacuum compaction device for preparing an anti-peep film, comprising a vacuum laminator (1), a laminating plate (2), a heating plate (3) and a hydraulic push rod (4), characterized in that: It also includes a pressurizing component (5), a pressurizing ejector rod (6), a fixing component (7) and a clamping plate (8); The vacuum laminator (1) is provided with a working room (11); The laminate (2) is located in the working room (11), a heating plate (3) is fixedly mounted on the laminate (2), and an adjustment cavity (21) is provided on the laminate (2); The hydraulic push rod (4) is installed at the bottom end of the working room (11) and is connected to the laminate board (2); The pressurizing component (5) is installed on the laminate (2), and the booster rod (6) is located in the regulating chamber (21). When the vacuum laminator (1) is working, the laminate (2) drives the booster rod (6) to extend through the pressurizing component (5); the fixing component (7) is located in the regulating chamber (21), and the clamping plate (8) is slidably installed in the regulating chamber (21). When the booster rod (6) is extended, the booster rod (6) drives the clamping plate (8) to extend through the fixing component (7).

2. The vacuum compaction equipment according to claim 1, characterized in that: The laminated plate (2) is divided into an active plate (22), a fixed plate (23) and a driven plate (24); the active plate (22) and the hydraulic push rod (4); the fixed plate (23) are located at the top of the working room (11); and a driven plate (24) is arranged in a linear array between the active plate (22) and the fixed plate (23).

3. The vacuum compaction equipment according to claim 2, characterized in that: The active plate (22) is divided into a top plate (221) and a placement plate (223); the top plate (221) has a grid array of pressure-equalizing bumps (222), and the placement plate (223) is provided with concave holes (224) that cooperate with the pressure-equalizing bumps (222).

4. The vacuum compaction equipment according to claim 2, characterized in that: The pressurizing assembly (5) comprises a driving shaft (51), a shaft sleeve (52), a driving wheel (53), a driving wheel (54) and a rotating drum (55); The driving shaft (51) is fixedly mounted on the laminate (2), and a driving block (511) is provided on the driving shaft (51); The shaft sleeve (52) is rotatably mounted in the adjustment cavity (21); the shaft sleeve (52) is coaxially mounted with the drive shaft (51); and a drive groove (521) is provided on the inner wall of the shaft sleeve (52); The driving wheel (53) is fixedly mounted on the bottom of the shaft sleeve (52), and a driving wheel (54) is provided on one side of the driving wheel (53); A rotating drum (55) is fixedly mounted on the driving wheel (54), and an extrusion groove (551) is provided in the rotating drum (55); The boosting push rod (6) is slidably mounted in the rotating drum (55), and an extrusion block (61) that cooperates with the extrusion groove (551) is provided at the top end of the boosting push rod (6).

5. The vacuum compaction equipment according to claim 4, characterized in that: A buffer spring (221) is provided above the driving shaft (51), and the buffer spring (221) is installed in the adjustment cavity (21).

6. The vacuum compaction equipment according to claim 4, characterized in that: The bottom end of the booster push rod (6) is an elastic gasket (62).

7. The vacuum compaction equipment according to claim 1, characterized in that: The fixing assembly (7) comprises a pressure rod (71), a return spring (72), a driven wheel (73), a rotating disk (74), a fixing wheel (75) and a limiting column (76); The pressure rod (71) is slidably mounted in the adjustment chamber (21), and the pressure rod (71) is connected to the inner wall of the adjustment chamber (21) via a return spring (72); The driven wheel (73) is coaxially mounted with the pressure rod (71), and a rotating disk (74) is provided on one side of the driven wheel (73); The rotating disk (74) is meshed with the driven wheel (73), and a sliding groove (741) is provided on the rotating disk (74); The clamping plate (8) is located above the turntable (74); The fixing wheel (75) is located above the clamping plate (8), and a limiting groove (751) is provided on the fixing wheel (75); The limiting column (76) is fixedly connected to the clamping plate (8), one end of the limiting column (76) is connected to the slide groove (741), and the other end of the limiting column (76) is connected to the limiting groove (751).

8. The vacuum compaction device according to claim 7, characterized in that: The clamping plate (8) is provided with friction patterns (81).

9. A privacy film, prepared by the vacuum compaction equipment according to any one of claims 1 to 8, characterized in that: The anti-peep film (9) is a multi-layer structure film with a PC board (95) as a substrate; the anti-peep film (9) comprises, from top to bottom, an anti-fingerprint oil layer (91), a tempered glass (92), a silk-screen color layer (93), an anti-peep AB glue (94) and a PC board (95).

10. The privacy film according to claim 9, characterized in that: The anti-peeping AB glue (94) is a multi-layer structure, and the anti-peeping AB glue (94) is provided with an OCA layer (941), an anti-peeping layer (942), a PET film (943) and a silicone layer (944) in order from top to bottom.

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