Double-layer privacy film laminating machine

Abstract

The application discloses a double-layer anti-peeping film compounding machine, which is characterized in that a film material feeding mechanism, a feeding and discharging mechanism and a rolling and laminating mechanism are arranged on the machine table, the film material feeding assembly of the film material feeding mechanism is arranged close to the feeding and discharging mechanism, corresponding single-layer anti-peeping films are fed to the vertical supporting film of the feeding and discharging conveying line of the feeding and discharging mechanism through the film material feeding assembly, and the release film of the single-layer anti-peeping film is adhered to the vertical supporting film; the vertical supporting film drives the multiple single-layer anti-peeping films arranged in sequence to be conveyed to the release film peeling device along the guide positioning assembly for release film peeling, the vertical supporting film drives the multiple release films peeled from the corresponding single-layer anti-peeping films to be wound, and the two single-layer anti-peeping films from which the release films are removed are aligned and rubbed into the rolling and laminating mechanism through the rolling and laminating mechanism, and are laminated into double-layer anti-peeping films.

Description

Technical Field

[0001] This invention relates to the field of membrane composite equipment technology, and more particularly to a double-layer privacy film composite machine. Background Technology

[0002] Double-layer privacy film is a special type of film, usually made of two or more layers of transparent material, which has good privacy protection performance.

[0003] In related technologies, some processes involve processing multiple layers of film one by one to form a double-layer privacy film, while others involve laminating multiple single-layer privacy films to form a corresponding double-layer privacy film. However, existing methods of laminating multiple single-layer privacy films to produce double-layer privacy films often involve peeling off the release liner from a single-layer privacy film, unwinding one end, and then laminating. After removing the release liner, the exposed privacy film is prone to dust adhesion, resulting in product defects. Furthermore, laminating a single-layer privacy film requires a winding process to collect the processed privacy film, which can easily cause folds, affecting product quality. Additionally, in related technologies, when laminating single-layer privacy films of a preset size using a privacy film laminating machine, the two single-layer privacy films may not align precisely or may misalign, resulting in misaligned boundaries in the laminated double-layer privacy film. This necessitates secondary cutting, leading to low-quality products.

[0004] There is currently no effective solution to the problem that existing privacy film laminating machines cannot accurately align two layers of privacy film, resulting in low-quality laminated privacy film products. Summary of the Invention

[0005] In view of this, it is necessary to provide a double-layer privacy film laminating machine to at least solve the problem of low quality of the laminated privacy film products caused by the inability of the two layers of privacy film to be precisely aligned in the related technology.

[0006] This application provides a double-layer privacy film laminating machine, including a machine base. The machine base is equipped with a film feeding mechanism, a take-up and undo mechanism, and a rolling lamination mechanism. The film feeding mechanism includes two symmetrically arranged film feeding components, which are positioned near the take-up and undo mechanism and are used to feed the corresponding single-layer privacy film piece by piece onto the vertical support film of the take-up and undo mechanism's conveyor line, and to adhere the release film of the single-layer privacy film to the vertical support film. The take-up and undo mechanism includes... Two symmetrically arranged take-up and unload conveyor lines are connected to the rolling and laminating mechanism. The take-up and unload conveyor lines are used to drive the vertical support film to carry a plurality of single-layer privacy films arranged in sequence, and to transport them along the guide positioning assembly to the peeling device for release film peeling, and to drive the vertical support film to carry a plurality of release films peeled from the corresponding single-layer privacy films for winding. The rolling and laminating mechanism is used to align two single-layer privacy films with the release film removed, roll them into the rolling and laminating mechanism, and roll and laminate them into a double-layer privacy film.

[0007] In some embodiments, the two take-up and unwind conveyor lines are arranged in a V-shape. Each take-up and unwind conveyor line further includes an unwinding assembly, multiple guide rollers, and a take-up assembly. The guide rollers are provided between the unwinding assembly and the guiding and positioning assembly, the peeling device, and the take-up assembly. The unwinding assembly is used to unwind the vertical support film. The guiding and positioning assembly is used to guide the vertical support film toward the peeling device and to limit the position of the single-layer privacy film adhered to the vertical support film, so that the single-layer privacy film is in the same position. A horizontal movement is made to the peeling device; the peeling device is used to fold the vertical support film back so that the folded vertical support film, moving towards the winding assembly, tears the release film of the single-layer privacy film and peels it off relative to the single-layer privacy film; the winding assembly is used to pull the vertical support film and drive the multiple single-layer privacy films arranged in sequence during the winding of the vertical support film, conveying them along the guide positioning assembly to the peeling device for release film peeling, and to wind up the vertical support film and the multiple release films peeled off together.

[0008] In some embodiments, the guiding and positioning assembly includes a feed plate, a rolling unit, and a guide plate. The feed plate is positioned near and docks with the film feeding mechanism. The rolling unit is positioned between the feed plate and the guide plate. The guide plate also docks with the peeling device. Both the feed plate and the guide plate have guide grooves for the vertical support film and the single-layer privacy film to flow through. The bottom of the single-layer privacy film adhered to the vertical support film is flush with the bottom of the guide groove. The feed plate is used to guide the film from the vertical support film... The single-layer privacy film fed by the film feeding mechanism is introduced and its position is corrected by the corresponding guide groove so that the bottom of the single-layer privacy film is flush with the bottom of the guide groove; the rolling unit is used to press the single-layer privacy film onto the vertical support film during the rolling of the vertical support film and the single-layer privacy film from the feed plate to the guide plate; the guide plate is used to guide the vertical support film and the single-layer privacy film toward the peeling device through the corresponding guide groove and to limit the position of the single-layer privacy film.

[0009] In some embodiments, the rolling unit includes a first rolling roller and a first movable pressure roller. The first rolling roller is vertically mounted on the machine base and is connected to a first drive unit mounted at the bottom of the machine base. The end of the first rolling roller opposite to the end connected to the first drive unit is also provided with a first transmission tooth. One axial end of the first movable pressure roller is provided with a first driven tooth that movably meshes with the first transmission tooth. Both axial ends of the first movable pressure roller are also movably connected to a corresponding first linear guide rail through a first sliding bearing seat. The first sliding bearing seat is also connected to a first drive cylinder. The first drive cylinder is used to drive the first sliding bearing seat to move the first movable pressure roller along the corresponding first linear guide rail, so that the first driven tooth meshes with the first transmission tooth. The first drive unit is used to drive the first rolling roller to rotate and drive the first movable pressure roller to rotate relative to the first rolling roller. The first rolling roller and the first movable pressure roller rotate relative to each other to press the single-layer privacy film onto the vertical support film during the rolling of the vertical support film and the single-layer privacy film from the feed plate to the guide plate.

[0010] In some embodiments, the take-up and unload conveyor line further includes a position detection sensor, which is located on the peeling device near the rolling and bonding mechanism and directly opposite the vertical support film. The position detection sensor is used to detect whether the corresponding single-layer privacy film has been conveyed to a preset position. The take-up and unload conveyor line is used to control the corresponding vertical support film to accelerate the conveying of the single-layer privacy film that is lagging behind in position when the two position detection sensors detect that the front ends of the two single-layer privacy films are not aligned, so that the two single-layer privacy films that have completed the release film peeling are aligned and then input into the rolling and bonding mechanism.

[0011] In some embodiments, both the unwinding assembly and the winding assembly include a drive shaft, an air shaft, and a winding / unwinding drive unit. The drive shaft is vertically mounted on the machine base, and one axial end of the drive shaft passes through the machine base and extends outward to be connected to the winding / unwinding drive unit via a synchronous belt. The other axial end of the drive shaft passes through the machine base and extends outward to be connected to the air shaft. The winding / unwinding drive unit is used to drive the drive shaft to rotate the air shaft in order to wind and unwind the vertical support film.

[0012] In some embodiments, the film feeding assembly includes a base plate disposed on a second linear guide rail, a third linear guide rail extending longitudinally on the base plate, a material frame pulsatingly connected to a second drive unit on the third linear guide rail, the second drive unit being capable of driving the material frame to slide along the third linear guide rail to adjust the distance between the material frame and a fixed pad fixed on the machine base, a push plate movably connected to a fourth linear guide rail disposed on the transverse sidewall of the material frame inside the material frame, the push plate also being pulsatingly connected to the third drive unit, wherein the third drive unit is used to drive the push plate to slide along the fourth linear guide rail to drive the push plate to move toward or away from the fixed pad; the push plate is used to push the single-layer privacy films stacked in the material frame one by one onto the fixed pad during the driven movement, so that the single-layer privacy films are pressed and adhered to the vertical support film flowing between the fixed pad and the push plate.

[0013] In some embodiments, the material frame is further provided with a pressing unit on the longitudinal front side near the fixed pad. The pressing unit includes a pressing drive unit fixedly connected to the crossbeam of the material frame. The pressing drive unit is driven to a pressing plate. The pressing drive unit is used to drive the pressing plate to press down the single-layer privacy film when the push plate pushes the corresponding single-layer privacy film out of the material frame, so that the bottom end of the single-layer privacy film is placed in a preset horizontal position. And / or, the second drive unit and the third drive unit both include one of the following: a ball screw module, a linear motor, and a drive cylinder.

[0014] In some embodiments, the material frame includes a fixed outer frame and a movable side plate. The movable side plate is movably embedded in the fixed outer frame and connected to a linear slide rail fixed on the longitudinal rear side wall of the fixed outer frame. After the movable side plate slides laterally along the linear slide rail, it and the fixed outer frame enclose the material frame to form a material frame that accommodates the single-layer privacy film of a preset size.

[0015] In some embodiments, the rolling bonding mechanism includes a movable seat, a fifth linear guide, a sixth linear guide, a bearing mounting base, a meshing drive unit, a transmission main shaft, a driven shaft, a rolling driven shaft, and a fourth drive unit. The fifth linear guide is fixed to the machine base, the movable seat is mounted on the fifth linear guide, the sixth linear guide is fixed to the movable seat and extends along the vertical feeding direction, the bearing mounting base is mounted on the sixth linear guide and is drively connected to the meshing drive unit, and the bearing mounting base has two rolling driven shafts arranged along the feeding direction. The two rolling driven shafts are positioned opposite the transmission main shaft and the driven shaft mounted on the movable seat, respectively, and are movably meshed with the transmission main shaft and the driven shaft. The transmission main shaft and the corresponding rolling driven shaft form a rolling unit, and the driven shaft and the corresponding rolling driven shaft group... The pressing unit includes a transmission main shaft and a driven shaft that are synchronously connected via a synchronization unit. The transmission main shaft is also connected to a fourth drive unit mounted at the bottom of the movable seat. The meshing drive unit drives the bearing mounting seat to slide the two rolling driven shafts along the sixth linear guide rail, so that the two rolling driven shafts mesh with the transmission main shaft and the driven shaft respectively. The fourth drive unit drives the transmission main shaft to rotate, so that the transmission main shaft drives the driven shafts to rotate in the same direction, and drives the rolling driven shafts meshed with the transmission main shaft to rotate in the opposite direction. The driven shaft, when rotated by the transmission main shaft, drives the rolling driven shafts meshed with it to rotate in the opposite direction. The rolling unit aligns and rolls two single-layer privacy films (with release film removed) towards the pressing unit. The pressing unit is used to combine two single-layer privacy films with the release film removed into a double-layer privacy film, and to convey the combined double-layer privacy film to the discharge guide chute so that the formed double-layer privacy film is discharged to the discharge conveyor.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows: The embodiments of this application provide a double-layer privacy film laminating machine, which employs a film feeding mechanism, a take-up and undo mechanism, and a rolling lamination mechanism on the machine base. The film feeding component of the film feeding mechanism is positioned close to the take-up and undo mechanism, and the corresponding single-layer privacy films are fed one by one onto the vertical support film of the take-up and undo mechanism's take-up and undo conveyor line, allowing the release film of the single-layer privacy film to adhere to the vertical support film. Multiple single-layer privacy films arranged sequentially by the vertical support film are driven by two symmetrically arranged take-up and undo conveyor lines of the take-up and undo mechanism, which are connected to the rolling lamination mechanism, and conveyed along the guide positioning component to the peeling device. The process involves peeling off the release film, driving a vertical support film transmission to wind up multiple release films peeled from their corresponding single-layer privacy films, and using a roller laminating mechanism to align two single-layer privacy films (with the release film removed) and roll them into a double-layer privacy film. This solves the problem in related technologies where privacy film laminating machines cannot accurately align the two layers of privacy film, resulting in low-quality laminated privacy film products. The double-layer privacy film laminating machine of this application can accurately align the laminated double-layer privacy films, resulting in high edge alignment, small misalignment, and low defect rate of the privacy film after roller lamination. This achieves the beneficial effects of improving the processing efficiency of double-layer privacy films and reducing the defect rate of privacy films. Attached Figure Description

[0017] Figure 1 This is a three-dimensional schematic diagram of a double-layer privacy film laminating machine according to an embodiment of this application;

[0018] Figure 2 This is a three-dimensional schematic diagram of the double-layer privacy film laminating machine after the frame has been removed, according to an embodiment of this application.

[0019] Figure 3 This is an assembly drawing of the material receiving and unloading mechanism and the machine base according to an embodiment of this application;

[0020] Figure 4 This is a schematic diagram of the guide and positioning component according to an embodiment of this application;

[0021] Figure 5 This is a schematic diagram of the membrane material feeding assembly according to an embodiment of this application;

[0022] Figure 6 This is a three-dimensional schematic diagram of a rolling bonding mechanism according to an embodiment of this application;

[0023] Figure 7 This is another perspective view of the rolling bonding mechanism according to an embodiment of this application;

[0024] Figure 8 This is a schematic diagram of the wiring for the double-layer privacy film lamination in an embodiment of this application.

[0025] Attached Figure

[0026] 001. Single-layer privacy film; 002. Double-layer privacy film;

[0027] 100. Machine tool;

[0028] 200. Membrane material feeding mechanism; 201. Membrane material feeding assembly; 21. Second linear guide rail; 22. Base plate; 23. Third linear guide rail; 24. Second drive unit; 25. Material frame; 26. Fixed pad; 27. Fourth linear guide rail; 28. Push plate; 29. ​​Third drive unit; 210. Pressing unit; 211. Pressing drive unit; 212. Pressing plate; 251. Crossbeam; 252. Fixed outer frame; 253. Movable side plate; 254. Linear slide rail;

[0029] 300. Unwinding / rewinding mechanism; 31. Unwinding / rewinding conveyor line; 32. Guide and positioning assembly; 33. Peeling device; 34. Unwinding assembly; 35. Guide roller; 36. Winding assembly; 37. Position detection sensor; 321. Feed plate; 322. Rolling unit; 323. Guide plate; 324. First rolling roller; 325. First movable pressure roller; 326. First drive unit; 327. First transmission gear; 328. First driven gear; 329. First sliding bearing seat; 3210. First linear guide rail; 3211. First drive cylinder; 341. Drive shaft; 342. Air shaft; 343. Unwinding / rewinding drive unit; 344. Synchronous belt;

[0030] 400. Rolling and bonding mechanism; 401. Rolling unit; 402. Pressing unit; 41. Moving seat; 42. Fifth linear guide; 43. Sixth linear guide; 44. Bearing mounting seat; 45. Meshing drive unit; 46. Transmission spindle; 47. Driven shaft; 48. Rolling driven shaft; 49. Fourth drive unit; 410. Synchronization unit; 411. Material drop guide groove;

[0031] 500. Feeding conveyor. Detailed Implementation

[0032] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0033] It should be noted that when a component is said to be "mounted on" another component, it can be directly mounted on the other component or may be interspersed with a component. When a component is said to be "set on" another component, it can be directly set on the other component or may be interspersed with a component. When a component is said to be "fixed to" another component, it can be directly fixed to the other component or may be interspersed with a component.

[0034] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein in the specification of this invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "or / and" as used herein includes any and all combinations of one or more of the associated listed items.

[0035] See Figures 1 to 8 This application provides a specific embodiment of a double-layer privacy film laminating machine. The illustrated double-layer privacy film laminating machine includes a machine base 100 housed within a frame (not labeled in the drawing). The machine base 100 is equipped with a film feeding mechanism 200, a material feeding and receiving mechanism 300, and a rolling lamination mechanism 400.

[0036] The membrane feeding mechanism 200 includes two symmetrically arranged membrane feeding components 201. The membrane feeding components 201 are located near the take-up and unload mechanism 300 and are used to feed the corresponding single-layer privacy films 001 one by one onto the vertical support film of the take-up and unload conveyor line 31 of the take-up and unload mechanism 300, and to make the release film of the single-layer privacy film 001 adhere to the vertical support film.

[0037] In this embodiment, each film feeding assembly 201 is positioned at a distance from the vertical support film unwound by the take-up and unwound mechanism 300, and is positioned directly opposite the vertical support film. This allows the single-layer privacy film 001 to be pushed one by one onto the vertical support film, and the single-layer privacy film 001 to adhere to the vertical support film with a certain viscosity. This enables the vertical support film of one take-up and unwound conveyor line 31 to correspondingly convey multiple single-layer privacy films 001 to the rolling and laminating mechanism 400.

[0038] The take-up and unload mechanism 300 includes two symmetrically arranged take-up and unload conveyor lines 31 that are connected to the rolling and bonding mechanism 400. The take-up and unload conveyor lines 31 are used to drive the vertical support film transmission to carry multiple single-layer privacy films 001 arranged in sequence, and to convey them along the guide positioning component 32 to the peeling device 33 for release film peeling, and to drive the vertical support film transmission to wind up the multiple release films peeled from the corresponding single-layer privacy films 001.

[0039] In this embodiment, after the take-up and unwound conveyor line 31 unwinds the vertical support film and receives the corresponding single-layer privacy film 001, the take-up and unwound conveyor line 31 conveys the vertical support film carrying the single-layer privacy film 001 along the guide positioning component 32. During the flow through the guide positioning component 32, the position of the single-layer privacy film 001 located on the vertical support film is adjusted in the vertical plane, that is, the vertical bottom edge of the single-layer privacy film 001 is leveled and adjusted to a preset height, so that the two single-layer... The privacy film 001 remains aligned vertically. Then, while the feeder line 31 is still conveying the single-layer privacy film 001 to the peeling device 33 and the front end of the single-layer privacy film 001 flows out of the peeling device 33, the feeder line 31, after the corresponding position detection sensor 37 detects the current position of the single-layer privacy film 001, controls the operating speed of the feeder line 31 on the corresponding side to align the two corresponding single-layer privacy films 001. For example, when the corresponding position detection sensor 37... When a single-layer privacy film 001 is detected to be in place by the take-up and unload conveyor line 31 (the position detection sensor 37 detects that the front end of the single-layer privacy film 001 is in place), and the position detection sensor 37 on the other side does not detect the corresponding single-layer privacy film 001 in place, at this time, one of the two take-up and unload conveyor lines 31 is set to drive the corresponding vertical support film to decelerate the conveying of the single-layer privacy film 001 (e.g., stop the take-up and unload conveyor line 31 to stop operating), and the other is set to drive the corresponding vertical support film to accelerate the conveying of the single-layer privacy film 001, until the position detection sensor 37 that did not detect the corresponding single-layer privacy film 001 in place detects that the single-layer privacy film 001 is in place; when both single-layer privacy films 001 are in place, it means that the front ends of the two single-layer privacy films 001 have been aligned. At this time, the two take-up and unload conveyor lines 31 start synchronously, and then perform subsequent release film separation, convey the two single-layer privacy films 001 with the release film removed into the rolling and laminating mechanism 400, and rewind the peeled release film.

[0040] The rolling bonding mechanism 400 is used to align two single-layer privacy films 001 with the release film removed, roll them into the rolling bonding mechanism 400, and roll them together to form a double-layer privacy film 002.

[0041] In this embodiment, the end face of the single-layer privacy film 001 after the release film is removed will have a certain degree of adhesiveness. By rolling and bonding mechanism 400, the two single-layer privacy films 001 can be laminated.

[0042] In the aforementioned double-layer privacy film laminating machine, a film feeding mechanism 200, a take-up and undo mechanism 300, and a roll-pressing mechanism 400 are installed on the machine base 100. The film feeding component 201 of the film feeding mechanism 200 is positioned close to the take-up and undo mechanism 300. The symmetrically arranged film feeding components 201 feed the corresponding single-layer privacy film 001 piece by piece onto the vertical support film of the take-up and undo mechanism 300's take-up and undo conveyor line 31, allowing the release film of the single-layer privacy film 001 to adhere to the vertical support film. The take-up and undo conveyor lines 31, symmetrically arranged and connected to the roll-pressing mechanism 400, drive the vertical support film to propel the sequentially arranged single-layer privacy films 001 along the guide positioning component 32. The film is conveyed to the peeling device 33 for release film peeling, and the vertical support film is driven to wind up multiple release films peeled from the corresponding single-layer privacy film 001. Then, the two single-layer privacy films 001 with the release film removed are aligned and rolled into the rolling bonding mechanism 400 by the rolling bonding mechanism 400 and rolled together to form a double-layer privacy film 002. This solves the problem in the related technology that the privacy film laminating machine cannot accurately align the two layers of privacy film, resulting in low quality of the laminated privacy film product. The double-layer privacy film laminating machine of this application embodiment can accurately align the laminated double-layer privacy film. The privacy film after rolling bonding has high edge alignment and small misalignment, and low defect rate. It achieves the beneficial effects of improving the processing efficiency of double-layer privacy film and reducing the defect rate of privacy film.

[0043] It should be noted that in this embodiment, the vertical support film is a recyclable film. After the release film of the single-layer privacy film 001 is peeled off, the release film will continue to be conveyed along with the rolled-up vertical support film. The release film can be removed from the vertical support film before winding, and the rolled-up vertical support film can be directly unwound for the next cycle. Alternatively, the vertical support film and the release film can be wound up together, the release film can be removed, and then the vertical support film can be put into use.

[0044] To achieve the unwinding and rewinding of the vertical support film and the transmission of the single-layer privacy film 001, in some embodiments, reference is made to... Figures 1 to 8 The two take-up and unwind conveyor lines 31 are arranged in a V-shape. Each take-up and unwind conveyor line 31 also includes an unwinding assembly 34, multiple guide rollers 35, and a take-up assembly 36. Guide rollers 35 are provided between the unwinding assembly 34 and the guide and positioning assembly 32, the peeling device 33, and the take-up assembly 36.

[0045] Unwinding assembly 34 is used for unwinding vertical support film.

[0046] In this embodiment, the two take-up and unwind conveyor lines 31 are arranged in a V-shape. The unwind assembly 34 is located on the side near the V-shaped opening. The two take-up and unwind conveyor lines 31 converge at the docking position with the rolling bonding mechanism 400, which is also the end of the corresponding two peeling devices 33 and the docking position with the rolling bonding mechanism 400. The vertical support film is folded back at the peeling device 33 and then conveyed towards the take-up assembly 36 located on the V-shaped opening side. In this embodiment, multiple guide rollers 35 are provided and distributed between the unwind assembly 34 and the guide positioning assembly 32, and between the peeling device 33 and the take-up assembly 36. After the vertical support film is unwound from the unwind assembly 34, it passes through the guide positioning assembly 32 and the peeling device 33 in sequence, and then returns to the take-up assembly 36. During this process, it passes through multiple guide rollers 35 and is guided by the guide rollers 35.

[0047] The guide positioning component 32 is used to guide the vertical support film to move toward the peeling device 33 and limit the single-layer privacy film 001 adhered to the vertical support film so that the single-layer privacy film 001 moves to the peeling device 33 at the same horizontal height.

[0048] In this embodiment, the guide positioning component 32, while limiting the vertical support film, also adjusts the position of the single-layer privacy film 001 attached to the vertical support film in the vertical plane. Specifically, it levels the vertical bottom edge of the single-layer privacy film 001 and adjusts it to a preset height, thereby keeping the two single-layer privacy films 001 aligned vertically. It can be understood that if the initial height of the single-layer privacy film 001 fed by the film feeding mechanism 200 is lower than the preset height, the guide positioning component 32 will push the single-layer privacy film 001 upwards, thereby at least leveling the bottom edge of the single-layer privacy film 001 to the preset height. Height; If the initial height of the single-layer privacy film 001 fed by the film feeding mechanism 200 is higher than the preset height, the guide positioning component 32 will push against the top edge of the single-layer privacy film 001, thereby causing the single-layer privacy film 001 to drop to the preset height. It can also be understood that if the initial position of the single-layer privacy film 001 fed is higher than the preset height and the size of the single-layer privacy film 001 is small, the guide positioning component 32 limits the vertical drop height of the single-layer privacy film 001 when it is attached to the vertical support film for conveying, that is, the single-layer privacy film 001 drops to a maximum of the preset height, thereby achieving the purpose of leveling and alignment.

[0049] Peeling device 33 is used to fold the vertical support film back so that the folded vertical support film moving toward the winding assembly 36 tears the release film of the single-layer privacy film 001 and peels it off relative to the single-layer privacy film 001.

[0050] In this embodiment, the peeling device 33 is a peeling block with a wedge, and the vertical support film, when folded back, acts on the wedge of the peeling device 33 to generate a tearing force, thereby peeling the release film off the single-layer privacy film 001.

[0051] The winding assembly 36 is used to pull the vertical support film and drive the multiple single-layer privacy films 001 arranged in sequence during the winding process of the vertical support film, and to transport them along the guide positioning assembly 32 to the peeling device 33 for release film peeling, and to wind up the vertical support film and the multiple release films peeled out at the same time.

[0052] In some alternative embodiments, both the unwinding assembly 34 and the winding assembly 36 include a drive shaft 341, an air shaft 342, and a winding / unwinding drive unit 343. The drive shaft 341 is vertically mounted on the machine base 100, and one axial end of the drive shaft 341 extends through the machine base 100 and is connected to the winding / unwinding drive unit 343 via a synchronous belt 344. The other axial end of the drive shaft 341 extends through the machine base 100 and is connected to the air shaft 342.

[0053] The winding and unwinding drive unit 343 is used to drive the transmission shaft 341 to rotate the air shaft 342 in order to wind and unwind the vertical support film.

[0054] In some alternative implementations, the take-up and unwind drive unit includes, but is not limited to, a drive servo motor.

[0055] In this embodiment, both the unwinding assembly 34 and the winding assembly 36 can be devices that can be used for rolls of paper, film and other roll materials in the prior art. This embodiment does not impose any specific limitations, nor does it constitute any limitation that is unclear in this application.

[0056] Understandably, this setup, by setting the guide positioning component 32, not only meets the requirement of limiting the vertical support film, but also adjusts the position of the single-layer privacy film 001 attached to the vertical support film in the vertical plane. That is, it levels the vertical bottom edge of the single-layer privacy film 001 and adjusts it to a preset height, so that the two single-layer privacy films 001 remain aligned in the vertical direction. By setting the peeling device 32, the release film is peeled off. At the same time, after the release film is peeled off, the two single-layer privacy films 001 are quickly laminated, reducing the leakage of the adhesion end of the single-layer privacy film 001, reducing the risk of dust introduction, and ensuring the quality of the laminated double-layer privacy film.

[0057] In order to achieve conveying and limiting of the vertical support film and vertical position adjustment of the single-layer privacy film 001, refer to Figures 1 to 4 as well as Figure 8In some embodiments, the guiding and positioning assembly 32 includes a feed plate 321, a rolling unit 322, and a guide plate 323. The feed plate 321 is positioned near the film feeding mechanism 200 and docks with it. The rolling unit 322 is positioned between the feed plate 321 and the guide plate 323. The guide plate 323 also docks with the peeling device 33. Both the feed plate 321 and the guide plate 323 are provided with guide grooves for the vertical support film and the single-layer privacy film 001 to flow through. The bottom of the single-layer privacy film 001 adhered to the vertical support film is flush with the bottom of the guide groove.

[0058] The feeding plate 321 is used to guide the single-layer privacy film 001 fed by the film feeding mechanism 200, and to perform position correction on the single-layer privacy film 001 through the corresponding guide groove (not labeled in the attached figure) so that the bottom of the single-layer privacy film 001 is flush with the bottom of the guide groove.

[0059] In this embodiment, the guide groove of the feed plate 321 serves two purposes: firstly, it limits the vertical support film, and secondly, it adjusts the position of the single-layer privacy film 001 attached to the vertical support film within the vertical plane. Specifically, it levels the vertical bottom edge of the single-layer privacy film 001 and adjusts it to be flush with the bottom of the guide groove, thereby ensuring that two single-layer privacy films 001 in the same area along the vertical support film conveying direction remain aligned vertically. It can be understood that if the initial height of the single-layer privacy film 001 fed by the film feeding mechanism 200 is lower than the bottom of the guide groove, the guide groove of the feed plate 321 will push the single-layer privacy film 001 upwards, thereby ensuring that at least the bottom edge of the single-layer privacy film 001 is flush with the guide groove. Bottom of the trough; if the initial height of the single-layer privacy film 001 fed by the film feeding mechanism 200 is higher than the bottom of the guide trough, the guide trough of the feed plate 321 will push against the top edge of the single-layer privacy film 001, thereby causing the single-layer privacy film 001 to fall down until its bottom edge is flush with the bottom of the guide trough. It can also be understood that if the initial position of the single-layer privacy film 001 fed is higher than the bottom of the guide trough but lower than the top edge of the guide trough, the vertical support film attached to the single-layer privacy film 001 will move vertically downward (corresponding to the fall caused by gravity), and through the limit of the bottom of the guide trough, the single-layer privacy film 001 will fall down to the bottom of the guide trough at most, thereby realizing the adjustment of the vertical position of the single-layer privacy film 001.

[0060] The rolling unit 322 is used to press the single-layer privacy film 001 onto the vertical support film during the process of rolling the vertical support film and the single-layer privacy film 001 from the feed plate 321 to the guide plate 323.

[0061] In this embodiment, the rolling unit 322 is used to provide power in the middle part of the take-up and unload conveyor line 31 so that the vertical support film can be smoothly conveyed to the single-layer privacy film 001.

[0062] The guide plate 323 is used to guide the vertical support film and the single-layer privacy film 001 toward the peeling device 33 through the corresponding guide groove, and to limit the single-layer privacy film 001.

[0063] In this embodiment, the guide groove of the guide plate 323 serves two purposes: firstly, it limits the vertical support film, and secondly, it adjusts the position of the single-layer privacy film 001 attached to the vertical support film within the vertical plane. Specifically, it levels the vertical bottom edge of the single-layer privacy film 001 and adjusts it to be flush with the bottom of the guide groove, thereby ensuring that two single-layer privacy films 001 in the same area along the vertical support film conveying direction remain aligned vertically. It can be understood that if the initial height of the single-layer privacy film 001 fed by the film feeding mechanism 200 is lower than the bottom of the guide groove, the guide groove of the guide plate 323 will push the single-layer privacy film 001 upwards, ensuring that at least the bottom edge of the single-layer privacy film 001 is flush with the guide groove. Bottom of the trough; if the initial height of the single-layer privacy film 001 fed by the film feeding mechanism 200 is higher than the bottom of the guide trough, the guide trough of the guide plate 323 will push against the top edge of the single-layer privacy film 001, thereby causing the single-layer privacy film 001 to fall down until its bottom edge is flush with the bottom of the guide trough. It can also be understood that if the initial position of the single-layer privacy film 001 fed is higher than the bottom of the guide trough but lower than the top edge of the guide trough, the vertical support film attached to the single-layer privacy film 001 will move vertically downward (corresponding to the fall caused by gravity), and through the limit of the bottom of the guide trough, the single-layer privacy film 001 will fall down to the bottom of the guide trough at most, thereby realizing the adjustment of the vertical position of the single-layer privacy film 001.

[0064] It is understandable that this setup, by setting up the feed plate 321 and the guide plate 323, and by using the guide grooves of the feed plate 321 and the guide plate 323 to limit the vertical support film, and by using the corresponding guide grooves to adjust the vertical alignment of the single-layer privacy film 001, ensures the vertical alignment of the composite double-layer privacy film 002, and ensures the accurate positioning of the composite double-layer privacy film 002, thereby improving product quality and reducing the defect rate.

[0065] In order to provide power to the single-layer privacy film 001 and the vertical support film output from the feed plate 321, so that the single-layer privacy film 001 can be smoothly conveyed along the conveying direction of the feed line 31, in some embodiments, reference is made to... Figures 1 to 4 as well as Figure 8The rolling unit 322 includes a first rolling roller 324 and a first movable pressure roller 325. The first rolling roller 324 is vertically mounted on the machine base 100 and is connected to a first drive unit 326 mounted at the bottom of the machine base 100. The end of the first rolling roller 324 opposite to the end connected to the first drive unit 326 is also provided with a first transmission tooth 327. One axial end of the first movable pressure roller 325 is provided with a first driven tooth 328 that meshes with the first transmission tooth 327. Both axial ends of the first movable pressure roller 325 are also movably connected to corresponding first linear guide rails 3210 via first sliding bearing seats 329. The first sliding bearing seats 329 are also connected to a first drive cylinder 3211.

[0066] In this embodiment, the first movable pressure roller 325 is provided with a first sliding bearing seat 329 mounted on the first linear guide rail 3210 at both axial ends, and the first movable pressure roller 325 is assembled by the two first sliding bearing seats 329. Each first sliding bearing seat 329 is correspondingly arranged on the corresponding first linear guide rail 3210 and is connected to a corresponding first drive cylinder 3211.

[0067] The first drive cylinder 3211 is used to drive the first sliding bearing seat 329 to drive the first movable pressure roller 325 to move along the corresponding first linear guide rail 3210 so that the first driven tooth 328 meshes with the first transmission tooth 327.

[0068] The first drive unit 326 is used to drive the first rolling roller 324 to rotate and to drive the first movable pressure roller 325 to rotate relative to the first rolling roller 324.

[0069] In this embodiment, the first drive unit 326 includes, but is not limited to, a servo geared drive motor.

[0070] The first rolling roller 324 and the first movable pressure roller 325 rotate toward each other to press the single-layer privacy film 001 onto the vertical support film during the process of rolling the vertical support film and the single-layer privacy film 001 from the feed plate 321 to the guide plate 323.

[0071] In this embodiment, the first roller 324 and the first movable pressure roller 325 drive the vertical support film and the single-layer privacy film 001 forward through the power of their opposite rotation. When the single-layer privacy film 001 flows between the first roller 324 and the first movable pressure roller 325, the first movable pressure roller 325 generates a corresponding working force that acts on the first roller 324, thereby pressing the single-layer privacy film 001 and the vertical support film to a certain extent, so that the single-layer privacy film 001 is tightly attached to the vertical support film, thus preventing the single-layer privacy film 001 from being poorly attached to the vertical support film.

[0072] To achieve longitudinal alignment of the two single-layer privacy films 001, in some embodiments, reference is made to... Figures 1 to 4 , Figure 8 The material feeding and receiving conveyor line 31 also includes a position detection sensor 37, which is located on the peeling device 33 near the rolling bonding mechanism 400 and directly opposite the vertical support film.

[0073] The position detection sensor 37 is used to detect whether the corresponding single-layer privacy film 001 has been transmitted to the preset position.

[0074] In this embodiment, the position detection sensor 37 is set at a preset position. The position detection sensor 37 determines whether the single-layer privacy film 001 has been transmitted to the preset position by detecting the front end of the single-layer privacy film 001. In this embodiment, the position detection sensor 37 includes, but is not limited to, through-beam optical fiber.

[0075] The feeding and receiving conveyor line 31 is used to control the corresponding vertical support film to accelerate the transmission of the single-layer privacy film 001 that is lagging behind in position when the two position detection sensors 37 detect that the front ends of the two single-layer privacy films 001 are not aligned, so that the two single-layer privacy films 001 that have completed the release film peeling are aligned and then input into the rolling and laminating mechanism 400.

[0076] In this embodiment, after the corresponding position detection sensor 37 detects the current position of the single-layer privacy film 001, the operating speed of the corresponding take-up and feed conveyor line 31 is controlled to align the two single-layer privacy films 001. For example, when the corresponding position detection sensor 37 detects that one single-layer privacy film 001 conveyed by the take-up and feed conveyor line 31 has arrived (the position detection sensor 37 detects that the front end of the single-layer privacy film 001 has arrived), but the position detection sensor 37 on the other side has not detected that the corresponding single-layer privacy film 001 has arrived, one of the two take-up and feed conveyor lines 31 is set to stop operating, and the other is set to drive the corresponding vertical support film to accelerate the conveying of the single-layer privacy film 001 until the position detection sensor 37 that did not detect the arrival of the corresponding single-layer privacy film 001 detects that the single-layer privacy film 001 has arrived. At this time, the front ends of the two single-layer privacy films 001 have been aligned. In this way, the edges of the two single-layer privacy films 001 are not incorrect, ensuring product quality.

[0077] In order to achieve the feeding of single-layer privacy film 001, refer to Figure 1 , Figure 2 , Figure 5 and Figure 8In some embodiments, the film feeding assembly 201 includes a base plate 22 disposed on a second linear guide rail 21. A third linear guide rail 23 extending longitudinally is disposed on the base plate 22. A material frame 25, which is pulsatorically connected to a second drive unit 24, is disposed on the third linear guide rail 23. The second drive unit 24 can drive the material frame 25 to slide along the third linear guide rail 23 to adjust the distance between the material frame 25 and a fixed pad 26 fixed on the machine base 100. A push plate 28, movably connected to a fourth linear guide rail 27 disposed on the transverse sidewall of the material frame 25, is disposed within the material frame 25. The push plate 28 is also pulsatorically connected to a third drive unit 29.

[0078] In this embodiment, the base plate 22 is also connected to a corresponding manual impeller (not labeled in the figure). The base plate 22 is adjusted along the second linear guide rail 21 by the manual impeller, thereby adjusting the relative position of the material frame 25 and the fixed pad 26. This ensures that single-layer privacy films 001 of different sizes can be pressed onto the fixed pad 26 when they are being fed, ensuring accurate feeding and preventing the center of the material frame 25 from shifting off from the fixed pad 26. Otherwise, the single-layer privacy film 001 will not be blocked by the fixed pad 26 when being fed, and it will impact the vertical support film when being pushed, which will damage the vertical support film and reduce processing efficiency.

[0079] The second drive unit 24 is used to drive the material frame 25 to move the third drive unit 29 and the push plate 28 toward or away from the fixed pad 26, so as to adjust the distance between the front end of the material frame 25 and the fixed pad 26.

[0080] In some alternative embodiments, the second drive unit 24 includes one of the following: a ball screw module, a linear motor, and a drive cylinder, preferably a ball screw module.

[0081] The third drive unit 29 is used to drive the push plate 28 to slide along the fourth linear guide rail 27, so as to drive the push plate 28 to move toward or away from the fixed pad 26.

[0082] In some of the alternative embodiments, the third drive unit 29 includes one of the following: a ball screw module, a linear motor, a drive cylinder, preferably a drive cylinder.

[0083] The pusher plate 28 is used to push the single-layer privacy film 001 stacked in the material frame 25 one by one onto the fixed pad 26 during the driven movement, so that the single-layer privacy film 001 is pressed and adhered to the vertical support film flowing between the fixed pad 26 and the pusher plate 28.

[0084] In order to achieve the initial position of the adjusted single-layer privacy film 001, in some embodiments, reference is made to... Figure 5The material frame 25 is also provided with a pressing unit 210 on the longitudinal front side near the fixed pad 26. The pressing unit 210 includes a pressing drive unit 211 fixedly connected to the crossbeam 251 of the material frame 25. The pressing drive unit 211 is connected to the pressing plate 212. The pressing drive unit 211 is used to drive the pressing plate 212 to press down the single-layer privacy film 001 when the push plate 28 pushes the corresponding single-layer privacy film 001 out of the material frame, so that the bottom end of the single-layer privacy film 001 is placed in a preset horizontal position.

[0085] To accommodate single-layer privacy films 001 of different sizes, in some embodiments, reference is made to... Figure 5 The material frame 25 includes a fixed outer frame 252 and a movable side plate 253. The movable side plate 253 is movably embedded in the fixed outer frame 252 and connected to a linear slide rail 254 fixed on the longitudinal rear side wall of the fixed outer frame 252. After the movable side plate 253 slides laterally along the linear slide rail 254, it and the fixed outer frame 252 enclose each other to form a material frame 25 that accommodates a single-layer privacy film 001 of a preset size.

[0086] In this embodiment, when it is necessary to adjust the size of the material frame 25 for holding the single-layer privacy film 001, the movable side plate 253 is manually moved and slid along the linear slide rail 254, thereby changing the width of the material frame 25 to accommodate single-layer privacy films 001 of different widths, that is, to accommodate single-layer privacy films 001 of different sizes.

[0087] To achieve the composite of the double-layer privacy film 002, in some embodiments, reference is made to... Figures 1 to 2 , Figures 6 to 8 The rolling bonding mechanism 400 includes a movable base 41, a fifth linear guide rail 42, a sixth linear guide rail 43, a bearing mounting base 44, a meshing drive unit 45, a transmission main shaft 46, a driven shaft 47, a rolling driven shaft 48, and a fourth drive unit 49. The fifth linear guide rail 42 is fixed on the machine base 100, the movable base 41 is mounted on the fifth linear guide rail 42, the sixth linear guide rail 43 is fixed on the movable base 41 and extends along the vertical feeding direction, the bearing mounting base 44 is mounted on the sixth linear guide rail 43 and is connected to the meshing drive unit 45 for transmission. The bearing mounting base 44 is provided with two bearings along the feeding direction. Two rolling driven shafts 48 are arranged in a specific direction. These two rolling driven shafts 48 are positioned opposite the drive shaft 46 and driven shaft 47 respectively, which are mounted on the movable seat 41, and are movably meshed with each other. The drive shaft 46 and the corresponding rolling driven shaft 48 form a rolling unit 401, and the driven shaft 47 and the corresponding rolling driven shaft 48 form a pressing unit 402. The drive shaft 46 and the driven shaft 47 are also synchronously connected via a synchronization unit 410. The drive shaft 46 is also connected to a fourth drive unit 49 mounted at the bottom of the movable seat 41.

[0088] In this embodiment, the movable seat 41 is also connected to a corresponding manual impeller (not labeled in the figures). The manual impeller moves the seat 41 along the fifth linear guide rail 42, thereby adjusting the distance between the rolling bonding mechanism 400 and the feeding / receiving mechanism 300. This allows two single-layer privacy films 001 of different widths to be conveyed from the feeding / receiving conveyor 300 to the rolling bonding mechanism 400. For example, when the width of the single-layer privacy film 001 is smaller, the rolling... The distance between the pressing and bonding mechanism 400 and the feeding and receiving mechanism 300 is adjusted so that when the release film is removed and the vertical support film has been folded back, the front end of the single-layer privacy film 001 is already rolled into the pressing and bonding mechanism 400, that is, it is bitten and injected by the rolling unit 401, so that the two single-layer privacy films 001 will not fall off in the air; when the width of the single-layer privacy film 001 is large, the distance between the pressing and bonding mechanism 400 and the feeding and receiving mechanism 300 can be increased.

[0089] The meshing drive unit 45 is used to drive the bearing mounting seat 44 to drive the two rolled driven shafts 48 to slide along the sixth linear guide rail 43 so that the two rolled driven shafts 48 are meshed with the transmission main shaft 46 and the driven shaft 47 respectively.

[0090] In this embodiment, the two rolling driven shafts 48 move synchronously, that is, the rollers corresponding to the rolling unit 401 and the pressing unit 402 engage or disengage synchronously, thereby ensuring that the rolling unit 401 and the pressing unit 402 work synchronously, and thus realize the rolling composite of the double-layer privacy film 002.

[0091] The fourth drive unit 49 is used to drive the transmission spindle 46 to rotate so that the transmission spindle 46 drives the driven shaft 47 to rotate in the same direction, and drives the transmission spindle 46 to drive the rolled driven shaft 48, which is meshed with the transmission spindle 46, to rotate in the opposite direction.

[0092] In this embodiment, the fourth drive unit 49 includes, but is not limited to, a servo drive motor.

[0093] Driven shaft 47 is used to drive rolled driven shaft 48, which is meshed with driven shaft 47, to rotate in the opposite direction when driven main shaft 46 rotates.

[0094] Rolling unit 401 is used to align and roll two single-layer privacy films 001 with release film removed and convey them toward pressing unit 402.

[0095] The pressing unit 402 is used to combine two single-layer privacy films 001 with release film removed into a double-layer privacy film 002, and to convey the combined double-layer privacy film 002 to the discharge guide 411 so that the formed double-layer privacy film 002 is discharged to the discharge conveyor 500.

[0096] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0097] Those skilled in the art should recognize that the above embodiments are merely illustrative of the present invention and are not intended to limit the present invention. Any appropriate changes and variations made to the above embodiments within the essential spirit of the present invention fall within the scope of protection claimed by the present invention.

Claims

1. A double-layer privacy film laminating machine, comprising a machine base (100), characterized in that, The machine base (100) is equipped with a film feeding mechanism (200), a material receiving and unloading mechanism (300), and a rolling and laminating mechanism (400), wherein, The film feeding mechanism (200) includes two symmetrically arranged film feeding components (201). The film feeding components (201) are located near the take-up and release mechanism (300) and are used to feed the corresponding single-layer privacy film (001) one by one onto the vertical support film of the take-up and release conveyor line (31) of the take-up and release mechanism (300), and to make the release film of the single-layer privacy film (001) adhere to the vertical support film. The take-up and unload mechanism (300) includes two symmetrically arranged take-up and unload conveyor lines (31) that are connected to the rolling and bonding mechanism (400). The take-up and unload conveyor lines (31) are used to drive the vertical support film to carry a plurality of single-layer privacy films (001) arranged in sequence, and to convey them along the guide positioning component (32) to the peeling device (33) for release film peeling, and to drive the vertical support film to carry a plurality of release films peeled from the corresponding single-layer privacy films (001) for winding. The take-up and unload conveyor lines (31) also include a position detection sensor (37), which is located on the peeling device (33) near the rolling and bonding mechanism (400) and is positioned directly opposite the vertical support film. The guiding and positioning component (32) is used to guide the vertical support film toward the peeling device (33) and limit the single-layer privacy film (001) adhered to the vertical support film so that the single-layer privacy film (001) moves to the peeling device (33) at the same horizontal height; the guiding and positioning component (32) includes a feed plate (321), a rolling unit (322) and a guide plate (323). The feed plate (321) is located near the film feeding mechanism (200) and docks with the film feeding mechanism (200). The rolling unit (322) is located between the feed plate (321) and the guide plate (323). The guide plate (323) also docks with the film feeding mechanism (200). The peeling device (33) is connected, and the feed plate (321) and the guide plate (323) are both provided with guide grooves for the vertical support film and the single-layer privacy film (001) to flow through. The bottom of the single-layer privacy film (001) that is attached to the vertical support film is flush with the bottom of the guide groove. The rolling unit (322) includes a first rolling roller (324) and a first movable pressure roller (325). The first rolling roller (324) and the first movable pressure roller (325) rotate towards each other so that the single-layer privacy film (001) is pressed onto the vertical support film during the process of rolling the vertical support film and the single-layer privacy film (001) from the feed plate (321) to the guide plate (323). The rolling bonding mechanism (400) is used to align and roll two single-layer privacy films (001) with the release film removed into the rolling bonding mechanism (400) and roll them together to form a double-layer privacy film (002).

2. The double-layer privacy film laminating machine according to claim 1, characterized in that, The two take-up and unwind conveyor lines (31) are arranged in a V-shape. The take-up and unwind conveyor lines (31) also include an unwinding assembly (34), multiple guide rollers (35), and a take-up assembly (36). The guide rollers (35) are provided between the unwinding assembly (34) and the guiding and positioning assembly (32), the peeling device (33), and the take-up assembly (36). The unwinding assembly (34) is used to unwind the vertical support film; The peeling device (33) is used to fold the vertical support film back so that the vertical support film, which is folded back and moves toward the winding assembly (36), tears the release film of the single-layer privacy film (001) and peels it off relative to the single-layer privacy film (001). The winding assembly (36) is used to pull the vertical support film during the winding process, thereby driving the multiple single-layer privacy films (001) arranged in sequence to be transported along the guide positioning assembly (32) to the peeling device (33) for release film peeling, and to wind up the vertical support film and the multiple release films peeled out at the same time.

3. The double-layer privacy film laminating machine according to claim 1, characterized in that, The feed plate (321) is used to guide the single-layer privacy film (001) fed by the film feeding mechanism (200) and to correct the position of the single-layer privacy film (001) through the corresponding guide groove so that the bottom of the single-layer privacy film (001) is flush with the bottom of the guide groove; the rolling unit (322) is used to press the single-layer privacy film (001) onto the vertical support film during the rolling of the vertical support film and the single-layer privacy film (001) from the feed plate (321) to the guide plate (323); the guide plate (323) is used to guide the vertical support film and the single-layer privacy film (001) toward the peeling device (33) through the corresponding guide groove and to limit the position of the single-layer privacy film (001).

4. The double-layer privacy film laminating machine according to claim 3, characterized in that, The first rolling roller (324) is vertically mounted on the machine base (100) and is connected to the first drive unit (326) mounted at the bottom of the machine base (100). The end of the first rolling roller (324) opposite to the end connected to the first drive unit (326) is also provided with a first drive tooth (327). One axial end of the first movable pressure roller (325) is provided with a first driven tooth (328) that meshes with the first drive tooth (327). Both axial ends of the first movable pressure roller (325) are also movably connected to the corresponding first linear guide rail (3210) via a first sliding bearing seat (329). The first sliding bearing seat (329) is also connected to a first drive cylinder (3211). The first drive cylinder (3211) is used to drive the first sliding bearing seat (329) to drive the first movable pressure roller (325) to move along the corresponding first linear guide rail (3210) so that the first driven tooth (328) meshes with the first drive tooth (327); The first drive unit (326) is used to drive the first rolling roller (324) to rotate and drive the first movable pressure roller (325) to rotate relative to the first rolling roller (324).

5. The double-layer privacy film laminating machine according to claim 2, characterized in that, The position detection sensor (37) is used to detect whether the corresponding single-layer privacy film (001) has been conveyed to a preset position; the take-up and unload conveyor line (31) is used to control the corresponding vertical support film to accelerate the transmission of the single-layer privacy film (001) that is lagging behind in position when the two position detection sensors (37) detect that the front ends of the two single-layer privacy films (001) are not aligned, so that the two single-layer privacy films (001) that have completed the release film peeling are aligned and then input into the rolling and bonding mechanism (400).

6. The double-layer privacy film laminating machine according to claim 2, characterized in that, Both the unwinding assembly (34) and the winding assembly (36) include a drive shaft (341), an air shaft (342), and a winding / unwinding drive unit (343). The drive shaft (341) is vertically mounted on the machine base (100), and one axial end of the drive shaft (341) passes through the machine base (100) and extends out to be connected to the winding / unwinding drive unit (343) via a synchronous belt (344). The other axial end of the drive shaft (341) passes through the machine base (100) and extends out to be connected to the air shaft (342). The winding / unwinding drive unit (343) is used to drive the drive shaft (341) to rotate the air shaft (342) to wind and unwind the vertical support film.

7. The double-layer privacy film laminating machine according to claim 1, characterized in that, The film feeding assembly (201) includes a base plate (22) disposed on a second linear guide rail (21). A third linear guide rail (23) extending longitudinally is disposed on the base plate (22). A material frame (25) connected to a second drive unit (24) is disposed on the third linear guide rail (23). The second drive unit (24) can drive the material frame (25) to slide along the third linear guide rail (23) to adjust the distance between the material frame (25) and a fixed pad (26) fixed on the machine base (100). A push plate (28) is disposed inside the material frame (25) and movably connected to a fourth linear guide rail (27) disposed on the transverse sidewall of the material frame (25). The push plate (28) is also connected to the third drive unit (29). The third driving unit (29) is used to drive the push plate (28) to slide along the fourth linear guide rail (27) to drive the push plate (28) to move toward or away from the fixed pad (26); The pusher plate (28) is used to push the single-layer privacy film (001) stacked in the material frame (25) one by one onto the fixed pad (26) during the driven movement, so that the single-layer privacy film (001) is pressed and adhered to the vertical support film flowing between the fixed pad (26) and the pusher plate (28).

8. The double-layer privacy film laminating machine according to claim 7, characterized in that, The material frame (25) is further provided with a pressing unit (210) on its longitudinal front side near the fixed pad (26). The pressing unit (210) includes a pressing drive unit (211) fixedly connected to the crossbeam (251) of the material frame (25). The pressing drive unit (211) is connected to a pressing plate (212). The pressing drive unit (211) is used to drive the pressing plate (212) to press down the single-layer privacy film (001) when the push plate (28) pushes the corresponding single-layer privacy film (001) out of the material frame, so that the bottom end of the single-layer privacy film (001) is placed in a preset horizontal position, and / or, The second drive unit (24) and the third drive unit (29) each include one of the following: a ball screw module, a linear motor, and a drive cylinder.

9. The double-layer privacy film laminating machine according to claim 7, characterized in that, The material frame (25) includes a fixed outer frame (252) and a movable side plate (253). The movable side plate (253) is movably embedded in the fixed outer frame (252) and connected to a linear slide rail (254) fixed on the longitudinal rear side wall of the fixed outer frame (252). After the movable side plate (253) slides laterally along the linear slide rail (254), it and the fixed outer frame (252) enclose the material frame (25) to form a material frame (25) for accommodating the single-layer privacy film (001) of a preset size.

10. The double-layer privacy film laminating machine according to claim 1, characterized in that, The rolling bonding mechanism (400) includes a movable seat (41), a fifth linear guide rail (42), a sixth linear guide rail (43), a bearing mounting seat (44), a meshing drive unit (45), a transmission main shaft (46), a driven shaft (47), a rolling driven shaft (48), and a fourth drive unit (49). The fifth linear guide rail (42) is fixed on the machine base (100), the movable seat (41) is mounted on the fifth linear guide rail (42), the sixth linear guide rail (43) is fixed on the movable seat (41) and extends along the vertical feeding direction, the bearing mounting seat (44) is mounted on the sixth linear guide rail (43) and is connected to the meshing drive unit (45) in a transmission manner, and the bearing mounting seat (44) has two bearings arranged along the feeding direction. The two rolling driven shafts (48) are respectively positioned opposite the transmission main shaft (46) and the driven shaft (47) mounted on the movable seat (41), and are movably meshed with the transmission main shaft (46) and the driven shaft (47). The transmission main shaft (46) and the corresponding rolling driven shaft (48) form a rolling unit (401), and the driven shaft (47) and the corresponding rolling driven shaft (48) form a pressing unit (402). The transmission main shaft (46) and the driven shaft (47) are also synchronously connected through a synchronization unit (410). The transmission main shaft (46) is also connected to the fourth drive unit (49) mounted at the bottom of the movable seat (41). The meshing drive unit (45) is used to drive the bearing mounting seat (44) to drive the two rolling driven shafts (48) to slide along the sixth linear guide (43) so that the two rolling driven shafts (48) are meshed with the transmission main shaft (46) and the driven shaft (47); The fourth drive unit (49) is used to drive the transmission spindle (46) to rotate so that the transmission spindle (46) drives the driven shaft (47) to rotate in the same direction, and to drive the rolling driven shaft (48) meshing with the transmission spindle (46) to rotate in the opposite direction. The driven shaft (47) is used to drive the rolled driven shaft (48) meshing with the driven shaft (47) to rotate in the opposite direction when it is driven to rotate by the transmission main shaft (46); The rolling unit (401) is used to align and roll in two single-layer privacy films (001) with the release film removed and convey them toward the pressing unit (402); The pressing unit (402) is used to combine two single-layer privacy films (001) with release film removed into a double-layer privacy film (002), and to convey the combined double-layer privacy film (002) to the discharge guide chute (411) so as to discharge the formed double-layer privacy film (002) to the discharge conveyor (500).

Images