A flexible curved surface film attaching device

Abstract

The present invention relates to the technical field of curved surface film pasting, and particularly relates to a flexible curved surface film pasting device, which includes a frame, a pressure regulation mechanism, a first feeding mechanism, a second feeding mechanism, a film tearing mechanism and a flexible fitting mechanism. A workbench and a base frame are arranged on the frame. A sliding seat is installed on the workbench, and a film pasting slider and a film tearing slider are arranged on the base frame. The film tearing mechanism is provided with a lifting base, a film taking assembly, a film lifting assembly and a rotating film tearing assembly. The flexible fitting mechanism includes a first flexible fitting assembly and a second flexible fitting assembly. The first flexible fitting assembly is provided with a film pasting base, a first silicone fitting pad and a flexible roller structure. By arranging a sliding seat on the workbench and using the sliding seat to realize the conversion of different working positions, the processes of material taking, film tearing and film pasting and fitting are alternately completed, realizing the continuous fitting process of curved surface glass and film. The conversion of different working positions reduces the traditional material taking and feeding time and improves the working efficiency of film pasting.

Description

Technical Field

[0001] The present invention relates to the technical field of curved surface film sticking, and particularly to a flexible curved surface film sticking device. Background Art

[0002] As products with a high daily usage frequency, the comfort of 3C products has become the focus for major manufacturers to expand product requirements. The most intuitive visual experience and touch experience for users lie in the design of their screens. Since the three-dimensional sense and aesthetic degree of curved screens are superior to those of flat screens, and they can create a "borderless" visual effect, the human-computer interaction of curved screens has gradually developed and is favored by users. The application fields of curved screens involve the manufacturing of 3C products such as curved screen mobile phones, smart watches, and smart bracelets. Each manufacturer has started to research and develop and sell curved screen products to meet the usage needs of users.

[0003] Due to the existence of a certain curvature in the curved screen, higher requirements are put forward for the film sticking technology of curved glass in the field of screen manufacturing. The film sticking process refers to tightly attaching an optical film to the glass surface. During film sticking, it is necessary to ensure operation in a vacuum environment to avoid defects such as air bubbles.

[0004] The curved surface fitting process mainly includes four processes: material taking, feeding, film tearing, and film sticking. The currently common fitting technology is to place the film and the curved glass in the upper and lower molds respectively. After removing the surface protective film, the upper and lower molds are accurately placed, and appropriate heating and pressurization are carried out to achieve the tight fitting of the film and the curved glass. However, during the entire curved surface fitting process, the mold is rigid during the film sticking process, which affects the fitting accuracy and quality of the curved glass and the film. In addition, it is also easy to cause damage to the curved glass, resulting in air bubbles during the fitting process.

[0005] Therefore, it is urgent to develop an efficient and high-precision curved surface film sticking device to solve the problems of fitting quality and fitting accuracy on the premise of ensuring fitting accuracy. Summary of the Invention

[0006] To solve the above problems, the present invention provides a flexible curved surface film sticking device, which increases the sticking force during the fitting process through flexible film sticking, and improves the film sticking accuracy and the yield rate.

[0007] The technical solution adopted by the present invention is:

[0008] A flexible curved surface film sticking device includes a frame, a pressure regulation mechanism, a first feeding mechanism, a second feeding mechanism, a film tearing mechanism, and a flexible fitting mechanism;

[0009] A workbench and a base frame are arranged on the frame. A sliding seat is installed on the workbench, and a film sticking slider and a film tearing slider are arranged on the base frame;

[0010] The first feeding mechanism is provided with a material placing component and a transfer component. The material placing component is arranged on the base frame and is used for conveying the curved glass to be film-attached. The transfer component is arranged on the sliding seat and is used for transferring the curved glass of the material placing component to the flexible laminating mechanism;

[0011] The second feeding mechanism is arranged on the sliding seat and is used for conveying the film to be torn off;

[0012] The film tearing mechanism is provided with a lifting base, a film taking component, a film lifting component and a rotating film tearing component. The lifting base is connected with the film tearing slider. The film taking component is movably installed on the lifting base and is used for grasping the film to be torn off located in the second feeding mechanism. The film lifting component is installed on the lifting base and is used for tearing the starting point of the film to be torn off. The rotating film tearing component is installed on the lifting base and is used for tearing off the film;

[0013] The flexible laminating mechanism includes a first flexible laminating component and a second flexible laminating component. The first flexible laminating component is installed on the film attaching slider. The second flexible laminating component is installed on the sliding seat and is located below the first flexible laminating component;

[0014] The first flexible laminating component is provided with a film attaching base, a first silica gel laminating pad and a flexible roller structure. The film attaching base is movably installed on the film attaching slider. The first silica gel laminating pad is arranged at the bottom end of the film attaching base. The flexible roller structure is hinged to the film attaching base and is located on the top surface of the first silica gel laminating pad and abuts against the first silica gel laminating pad;

[0015] An array of cavities is arranged inside the first silica gel laminating pad. An array of suction cup microstructures is arranged on the lower surface of the first silica gel laminating pad. The array of cavities and the array of suction cup microstructures are respectively connected to the pressure regulating mechanism through air ducts;

[0016] The second flexible laminating component is provided with a clamping seat, a second silica gel laminating pad and a film positioning structure. The clamping seat is installed on the sliding seat. The second silica gel laminating pad and the film positioning structure are respectively installed on the clamping seat;

[0017] Microstructure vacuum suction cups are arranged on the top side of the second silica gel laminating pad. The microstructure vacuum suction cups are connected to the pressure regulating mechanism through air ducts. The outer contour of the second silica gel laminating pad is matched with the inner surface contour of the curved glass to be film-attached;

[0018] During film attachment, the first silica gel laminating pad moves up and down and fits with the second silica gel laminating pad to complete the lamination of the curved glass and the film.

[0019] Further, a first controllable heating device, a first temperature sensor, a first pressure sensor, and a displacement sensor are embedded in the first silicone fitting pad; a second controllable heating device, a second temperature sensor, and a second pressure sensor are embedded in the second silicone fitting pad.

[0020] Further, the feeding assembly includes a first material storage box, a curved glass conveyor belt, and a limiting wedge. The first material storage box is fixedly arranged on the base frame. The first material storage box is arranged in a structure with upper and lower openings. The curved glass conveyor belt is arranged in the first material storage box, and both ends of the curved glass conveyor belt are located at the upper and lower ends of the first material storage box. The curved glass conveyor belt is provided with a long strip-shaped convex structure for clamping the curved glass. The limiting wedge is rotatably arranged inside the lower opening of the first material storage box through a spiral spring.

[0021] Further, the transfer assembly includes a transfer base, a lead screw driving device, a connecting rod structure, a slider structure, and a pick-up and delivery table. The transfer base is arranged on the sliding seat. The pick-up and delivery table is connected to the transfer base through the connecting rod structure. The slider structure is arranged at the connection between the connecting rod structure and the transfer base. The lead screw driving device is installed on the transfer base and is drivingly connected to the slider structure to control the displacement of the slider structure, drive the pick-up and delivery table to move up and down, and perform the pick-up and delivery of the curved glass.

[0022] A pick-up vacuum suction cup, a pick-up top pin, a pick-up pressure sensor, and a pick-up distance sensor are arranged on the pick-up and delivery table. The pick-up vacuum suction cup is connected to the pressure regulation mechanism through an air duct.

[0023] Further, the film picking assembly includes a film picking seat, a film picking slide rail, an upper film picking mechanical claw, a lower film picking mechanical claw, a film picking limit block, and a film picking driving device.

[0024] The film picking seat is arranged on the lifting base.

[0025] The film picking slide rail is installed on the film picking seat.

[0026] The upper film picking mechanical claw and the lower film picking mechanical claw are arranged at intervals up and down on the film picking slide rail. The upper film picking mechanical claw and the lower film picking mechanical claw are respectively provided with a film picking microarray structure.

[0027] The film picking limit block is installed on the film picking seat for positioning the film.

[0028] The film picking driving device is arranged on the lifting base and is drivingly connected to the upper film picking mechanical claw.

[0029] Further, the film lifting assembly includes a film lifting seat, a film lifting telescopic member, an upper film lifting mechanical claw, a lower film lifting mechanical claw, and a film lifting driving device.

[0030] The film lifting base is installed on the lifting base;

[0031] The film lifting telescopic member is installed on the film lifting base;

[0032] The upper film lifting mechanical claw and the lower film lifting mechanical claw are arranged at intervals up and down on the film lifting telescopic member;

[0033] The film lifting driving device is installed on the film lifting base and is drivingly connected to the upper film lifting mechanical claw.

[0034] Further, the rotary film tearing assembly includes a film tearing base, a film tearing mechanical claw, a film tearing rotating member and a gear transmission structure;

[0035] An annular slide rail is provided on the lifting base, and the film tearing base is slidably arranged on the annular slide rail;

[0036] The film tearing rotating member is rotatably installed on the film tearing base;

[0037] The gear transmission structure is installed on the lifting base and is drivingly connected to the film tearing rotating member to drive the film tearing rotating member to rotate;

[0038] The film tearing mechanical claw is installed on the film tearing rotating member.

[0039] Further, the film tearing mechanism is also provided with a visual monitoring sensing assembly and a position movement sensing assembly, and the visual monitoring sensing assembly and the position movement sensing assembly are respectively installed on the lifting base

[0040] Further, the flexible roller structure includes a roller slider, a roller driving device, a first roller member, a second roller member, a third roller member, a fourth roller member and a terminal connecting rod, and the first roller member, the second roller member, the third roller member and the fourth roller member are respectively provided with roller pressure sensors;

[0041] The roller slider is clamped on the film attaching base, and a roller displacement sensor is arranged on the roller slider;

[0042] The first roller member and the second roller member are respectively connected to the roller slider through springs and are respectively arranged on the front and rear sides of the top of the first silicone bonding pad;

[0043] The third roller member and the fourth roller member are respectively connected to the roller slider through springs and are respectively arranged on the left and right sides of the top of the first silicone bonding pad;

[0044] The terminal connecting rod is connected to the ends of the third roller member and the fourth roller member, and the top end of the terminal connecting rod is directly connected through a tension spring;

[0045] The roller driving device is arranged on the film laminating base and is drivingly connected to the roller slider.

[0046] Wherein, the structures of the first roller member and the second roller member are the same;

[0047] The structures of the third roller member and the fourth roller member are the same;

[0048] In the non-working state, the first roller member, the second roller member, the third roller member and the fourth roller member hang down naturally, and the height of the first roller member and the second roller member is higher than that of the third roller member and the fourth roller member, and the width between the first roller member and the second roller member is smaller than that of the third roller member and the fourth roller member.

[0049] Furthermore, the second feeding mechanism is provided with a second material storage box, the second material storage box is arranged on the sliding seat, and the second material storage box is provided with a fixing clip for fixing the position of the film stored in the second material storage box.

[0050] The beneficial effects of the present invention are as follows:

[0051] 1. In this application, by arranging a sliding seat on the workbench, the conversion of different workstations is realized by using the sliding seat, and the processes of material taking, film tearing and film laminating are alternately completed, realizing the continuous laminating process of curved glass and film. The conversion of different workstations reduces the traditional material taking and loading time and improves the working efficiency of film lamination;

[0052] 2. This application adopts a flexible silicone laminating mechanism to complete the flexible film laminating process. Mechanisms such as a precision controllable heating device, a controllable flexible roller mechanism, a micro-structure array suction cup and an array cavity arranged inside the flexible silicone laminating pad increase the adhesion force during the laminating process and improve the film laminating precision and the yield rate;

[0053] 3. In the film tearing mechanism, a rotary film tearing mechanism is innovatively adopted to simulate the manual film tearing process, improve the film tearing efficiency, reduce the acting force during the film tearing process, and cooperate with the visual monitoring component of the film tearing mechanism to accurately and efficiently tear the film. BRIEF DESCRIPTION OF THE DRAWINGS

[0054] Figure 1 It is a schematic structural diagram in some embodiments of this application;

[0055] Figure 2 It is a schematic structural diagram of the unwinding assembly in some embodiments of this application;

[0056] Figure 3 It is a schematic structural diagram of the transfer assembly in some embodiments of this application;

[0057] Figure 4Schematic structural diagram of the flexible fitting mechanism in some embodiments of the present application;

[0058] Figure 5 Schematic structural diagram of the film tearing mechanism in some embodiments of the present application;

[0059] Figure 6 Schematic structural diagram of the film taking assembly in some embodiments of the present application;

[0060] Figure 7 Schematic structural diagram of the rotating film tearing assembly in some embodiments of the present application;

[0061] Description of reference numerals: Frame 1, Workbench 11, Sliding seat 111, Base frame 12, Film sticking slider 121, Film tearing slider 122, Pressure regulating mechanism 2, First feeding mechanism 3, Feeding component 31, First material storage box 311, Curved glass conveyor belt 312, Long strip-shaped convex structure 3121, Limiting wedge 313, Transfer component 32, Transfer base 321, Lead screw driving device 322, Link structure 323, Slide block structure 324, Pick-up and feeding table 325, Vacuum suction cup 3251, Pick-up pin 3252, Second feeding mechanism 4, Second material storage box 41 (not labeled), Film tearing mechanism 5, Lifting base 51, Film taking assembly 52, Film taking seat 521, Film taking slide rail 522, Upper film taking mechanical claw 523, Lower film taking mechanical claw 524, Film taking driving device 525, Film taking limiting block 526, Film lifting component 53, Film lifting seat 531, Film lifting telescopic member 532, Upper film lifting mechanical claw 533, Lower film lifting mechanical claw 534, Film lifting driving device 535, Rotating film tearing assembly 54, Film tearing seat 541, Film tearing mechanical claw 542, Film tearing rotating member 543, Gear transmission structure 544, Flexible fitting mechanism 6, First flexible fitting component 61, Film sticking base 611, First silicone fitting pad 612, Flexible roller structure 613, Roller slider 6131, Roller driving device 6132, First roller member 6133, Second roller member 6134, Third roller member 6135, Fourth roller member 6136, End link 6137, Second flexible fitting component 62, Clamping seat 621, Second silicone fitting pad 622. Detailed description of the invention

[0062] The present invention will be further described below with reference to the accompanying drawings.

[0063] As Figures 1 to 7 shown, the flexible curved surface film sticking device described in this embodiment includes a frame 1, a pressure regulating mechanism 2, a first feeding mechanism 3, a second feeding mechanism 4, a film tearing mechanism 5, and a flexible fitting mechanism 6;

[0064] A workbench 11 and a base frame 12 are provided on the frame 1. A sliding seat 111 is installed on the workbench 11, and a film - applying slider 121 and a film - tearing slider 122 are provided on the base frame 12;

[0065] The first feeding mechanism 3 is provided with a feeding component 31 and a transferring component 32. The feeding component 31 is arranged on the base frame 12 and is used for conveying the curved glass to be film - applied. The transferring component 32 is arranged on the sliding seat 111 and is used for transferring the curved glass of the feeding component 31 to the flexible laminating mechanism 6;

[0066] The second feeding mechanism 4 is arranged on the sliding seat 111 and is used for conveying the film to be torn;

[0067] The film - tearing mechanism 5 is provided with a lifting base 51, a film - picking component 52, a film - lifting component 53 and a rotary film - tearing component 54. The lifting base 51 is connected to the film - tearing slider 122. The film - picking component 52 is movably installed on the lifting base 51 and is used for grasping the film to be torn located at the second feeding mechanism 4. The film - lifting component 53 is installed on the lifting base 51 and is used for tearing the starting point of the film to be torn. The rotary film - tearing component 54 is installed on the lifting base 51 and is used for tearing the film;

[0068] See Figure 5 As shown, the flexible laminating mechanism 6 includes a first flexible laminating component 61 and a second flexible laminating component 62. The first flexible laminating component 61 is installed on the film - applying slider 121, and the second flexible laminating component 62 is installed on the sliding seat 111 and is located below the first flexible laminating component 61;

[0069] The first flexible laminating component 61 is provided with a laminating base 611, a first silicone laminating pad 612 and a flexible roller structure 613. The laminating base 611 is movably installed on the film - applying slider 121. The first silicone laminating pad 612 is arranged at the bottom end of the laminating base 611. The flexible roller structure 613 is hinged to the laminating base 611 and is located on the top surface of the first silicone laminating pad 612 and abuts against the first silicone laminating pad 612;

[0070] Among them, the flexible roller structure 613 includes a roller slider 6131, a roller driving device 6132, a first roller member 6133, a second roller member 6134, a third roller member 6135, a fourth roller member 6136 and an end link 6137. The first roller member 6133, the second roller member 6134, the third roller member 6135 and the fourth roller member 6136 are respectively provided with roller pressure sensors;

[0071] The roller slider 6131 is clamped and arranged on the film pasting base 611, and a roller displacement sensor is arranged on the roller slider 6131;

[0072] The first roller member 6133 and the second roller member 6134 are respectively connected to the roller slider 6131 through springs, and are respectively arranged on the front and rear sides of the top of the first silicone bonding pad 612;

[0073] The third roller member 6135 and the fourth roller member 6136 are respectively connected to the roller slider 6131 through springs, and are respectively arranged on the left and right sides of the top of the first silicone bonding pad 612;

[0074] The end connecting rod 6137 is connected to the ends of the third roller member 6135 and the fourth roller member 6136, and the top of the end connecting rod 6137 is directly connected through a tension spring;

[0075] The roller driving device 6132 is arranged on the film pasting base 611 and is drivingly connected to the roller slider 6131.

[0076] Wherein, the structures of the first roller member 6133 and the second roller member 6134 are the same;

[0077] The structures of the third roller member 6135 and the fourth roller member 6136 are the same;

[0078] In the non-working state, the first roller member 6133, the second roller member 6134, the third roller member 6135 and the fourth roller member 6136 naturally hang down, and the first roller member 6133 and the second roller member 6134 are higher than the third roller member 6135 and the fourth roller member 6136, and the width between the first roller member 6133 and the second roller member 6134 is smaller than that of the third roller member 6135 and the fourth roller member 6136.

[0079] Specifically, the above four roller members respectively include rollers and roller connecting rods. The rollers are arranged on the roller connecting rods, and the roller connecting rods are connected to the roller slider 6131.

[0080] By setting the flexible roller structure 613, the bonding force during the film pasting process can be improved, and the generation of air bubbles can be avoided. The film pasting base 611 can be set as a hollow structure and fixed to the top of the first silicone bonding pad 612 for pipelines to pass through the hollow part and be connected to corresponding devices;

[0081] An array of cavities is provided inside the first silicone bonding pad 612. An array of suction cup-like microstructures is provided on the lower surface of the first silicone bonding pad 612. The array of cavities and the array of suction cup-like microstructures are respectively connected to the pressure regulating mechanism 2 through air ducts. The array of suction cup-like microstructures, as an adsorption mechanism, can suck the film, increasing the bonding pressure area and bonding accuracy. When the array of cavities is under negative pressure, the two sides of the first silicone bonding pad 612 are kept horizontal or upturned, avoiding affecting the adsorption and clamping of the curved glass. During feeding, the array of suction cup-like microstructures suck the curved glass sent out by the negative pressure suction and transfer mechanism. During film bonding, the array of cavities is moderately collided under pressure and, under the action of the array of suction cup-like microstructures, increases the bonding force during the film bonding process. At the same time, the precision controllable heating devices in the first silicone bonding pad 612 and the second silicone bonding pad 622 start to heat up, reducing the bending difficulty of the film during the bonding process and increasing the adhesion between the film and the curved glass. Finally, the flexible roller mechanism rolls the upper surface of the first silicone bonding pad 612 to remove possible bonding bubbles, further improving the bonding accuracy and effect;

[0082] The second flexible bonding assembly 62 is provided with a clamping seat 621, a second silicone bonding pad 622 and a film positioning structure. The clamping seat 621 is installed on the sliding seat 111. The second silicone bonding pad 622 and the film positioning structure are respectively installed on the clamping seat 621;

[0083] Microstructure vacuum suction cups 3251 are provided on the top side of the second silicone bonding pad 622. The microstructure vacuum suction cups 3251 are connected to the pressure regulating mechanism 2 through air ducts. The outer contour of the second silicone bonding pad 622 is set to match the inner surface contour of the curved glass to be film-bonded;

[0084] During film bonding, the first silicone bonding pad 612 moves up and down to be in contact with the second silicone bonding pad 622, completing the bonding of the curved glass and the film.

[0085] Specifically, in this embodiment, the sliding seat 111 is clamped on the workbench 11 through a guide rail and is driven to slide by a driving device, driving the mechanisms located on the sliding seat 111 to move to different stations. Specifically, the center distances of the transfer assembly 32, the second flexible bonding assembly 62, the second feeding mechanism 4, etc. are set on the sliding seat 111, and the film tearing mechanism 5 is located directly above the second feeding mechanism 4.

[0086] The structure of this embodiment is simple and reasonably designed. When using the film pasting, by means of the flexible silicone fitting mechanism, the rotating film tearing mechanism 5 and other mechanisms, the conversion of different working stations is realized by using the sliding seat 111, and the processes of taking, feeding, film tearing and flexible film pasting of the curved glass are completed. The controllable flexible roller mechanism and the vacuum device are used to realize flexible, bubble-free and high-precision film covering, effectively improving the fitting accuracy and effect of the curved glass and the film, and improving the film covering efficiency.

[0087] When pasting the film, specifically in this embodiment, double-station film pasting is adopted. The curved glass to be pasted with the film is placed in the feeding component 31 of the first feeding mechanism 3, and the film to be torn is placed in the second feeding mechanism 4. The device is divided into a first working station and a second working station. The whole device is first located at the first working station, and the operations performed are as follows: the transfer component 32 moves upward to suck the curved glass placed in the feeding component 31, the film taking component 52 grabs the film to be torn located in the second feeding mechanism 4, and then the sliding seat 111 moves, and the device enters the second working station. The operations performed are as follows: the moving component moves upward to send the curved glass to the first flexible fitting component 61, the first silicone fitting pad 612 sucks the curved glass, the film taking component 52 places the film on the second flexible fitting component 62, the second silicone fitting pad 622 sucks the film, the film lifting component 53 tears the starting point of the film, the rotating film tearing component 54 tears the film, and then the workbench 11 resets, and the device enters the first working station. The operations performed are as follows: the first silicone fitting pad 612 and the second silicone fitting pad 622 work together to complete the film pasting, the transfer sucks upward the curved glass placed in the feeding component 31, and the film taking component 52 grabs the film to be torn located in the second feeding mechanism 4. Thus, a working cycle is completed, and the curved glass with the film pasted and the torn film protective film are taken off by other mechanisms. The device repeats the above process until all the curved glasses are fitted.

[0088] In the above film pasting process, the second flexible fitting component 62 works as a flexible mold for film pasting at the first working station, and performs controllable heating and flexible fitting on the film; at the second working station, it works as an adsorption fixture to fix the film and cooperate with the film tearing mechanism 5 to tear the film.

[0089] In some embodiments, the first silicone fitting pad 612 is embedded with a first controllable heating device, a first temperature sensor, a first pressure sensor and a displacement sensor; the second silicone fitting pad 622 is embedded with a second controllable heating device, a second temperature sensor and a second pressure sensor.

[0090] Specifically, in this embodiment, the first controllable heating device is composed of a thermal resistance wire and a temperature control module. The thermal resistance wire is distributed in the first silicone fitting pad 612 according to a certain rule. During the film fitting process, the precision controllable heating device improves the fitting effect and adhesion effect of the film through micro heating.

[0091] In this embodiment, through temperature, temperature, pressure and displacement sensors, the real-time condition of the film application can be monitored and adjusted, and the film application accuracy is high.

[0092] In some embodiments, refer to Figure 2 As shown, the feeding component 31 includes a first material storage box 311, a curved glass conveyor belt 312 and a limiting wedge 313. The first material storage box 311 is fixedly arranged on the base frame 12. The first material storage box 311 is arranged in an up-and-down open structure. The curved glass conveyor belt 312 is arranged in the first material storage box 311, and both ends of the curved glass conveyor belt 312 are located at the upper and lower ends of the first material storage box 311. The curved glass conveyor belt 312 is provided with a strip-shaped convex structure 3121 for clamping the curved glass. The limiting wedge 313 is rotatably arranged at the inner side of the lower opening of the first material storage box 311 through a spiral spring.

[0093] Specifically, the curved glass conveyor belt 312 in this embodiment is made of silicone material. The top of the limiting wedge is made of silicone material and is subjected to frosting treatment to reduce the friction between the surface and the curved glass. At the same time, flexible material taking can be realized to prevent the curved glass from being crushed due to excessive stress. The limiting wedge in this embodiment can rotate around the rotation center, and the rotation angle is 0°-60° in the counterclockwise direction. During the material taking process, the transfer component 32 moves upward. First, it contacts the limiting wedge and lifts the limiting wedge, driving the curved glass clamped on the curved glass conveyor belt 312 to move upward as a whole. When the limiting wedge rotates away from the lowest curved glass, it slowly falls under the action of gravity and the damping action of the curved glass conveyor belt 312, and then is sucked by the transfer component 32. After the material is taken, the transfer component 32 retracts. The limiting wedge is reset under the action of the spiral spring and meshes with the curved edge of the next curved glass. When the limiting wedge rotates to 0°, the limiting wedge is restricted by the main body of the material storage box, restricting the remaining curved glass in the first material storage box 311. In this way, intermittent feeding is carried out. The structure of this embodiment is simple and the feeding effect is good.

[0094] On the basis of the above embodiment, refer to Figure 3 As shown, in this embodiment, the transfer component 32 includes a transfer base 321, a lead screw driving device 322, a connecting rod structure 323, a slider structure 324 and a material taking and feeding table 325. The transfer base 321 is arranged on the sliding seat 111. The material taking and feeding table is connected to the transfer base 321 through the connecting rod structure 323. The slider structure 324 is arranged at the connection between the connecting rod structure and the transfer base 321. The lead screw driving device 322 is installed on the transfer base 321 and is drivingly connected to the slider structure 324 to control the displacement of the slider structure 324 and drive the material taking and feeding table 325 to move up and down for taking and feeding the curved glass;

[0095] The pick-up and delivery table 325 is provided with a pick-up vacuum suction cup 3251, a pick-up ejector pin 3252, a pick-up pressure sensor, and a pick-up distance sensor. The pick-up vacuum suction cup 3251 is connected to the pressure regulation mechanism 2 through a gas guide pipe.

[0096] In this embodiment, during the transfer process, the pick-up ejector pin 3252 first contacts the limit wedge block, rotates the limit wedge block, and sucks the glass through the vacuum suction cup 3251 to complete the pick-up.

[0097] In some embodiments, as shown in Figure 6 the film picking assembly 52 includes a film picking base 521, a film picking slide rail 522, an upper film picking mechanical claw 523, a lower film picking mechanical claw 524, a film picking driving device 525, and a film picking limit block 526;

[0098] The film picking base 521 is arranged on the lifting base 51;

[0099] The film picking slide rail 522 is installed on the film picking base 521;

[0100] The upper film picking mechanical claw 523 and the lower film picking mechanical claw 524 are arranged at intervals up and down on the film picking slide rail 522. The upper film picking mechanical claw 523 and the lower film picking mechanical claw 524 are respectively provided with a film picking microarray structure;

[0101] The film picking driving device 525 is arranged on the lifting base 51 and is drivingly connected to the upper film picking mechanical claw 523.

[0102] The film picking limit block is installed on the film picking base and is used for positioning the film during the film picking and film placing processes;

[0103] The structure of this embodiment is simple and reasonable, and is used for grasping, placing, and positioning the film.

[0104] In some embodiments, as shown in Figure 5 the film lifting assembly 53 includes a film lifting base 531, a film lifting telescopic member 532, an upper film lifting mechanical claw 533, a lower film lifting mechanical claw 534, and a film lifting driving device 535;

[0105] The film lifting base 531 is installed on the lifting base 51;

[0106] The film lifting telescopic member 532 is installed on the film lifting base 531;

[0107] The upper film lifting mechanical claw 533 and the lower film lifting mechanical claw 534 are arranged at intervals up and down on the film lifting telescopic member 532;

[0108] The film lifting driving device 535 is installed on the film lifting base 531 and is drivingly connected to the upper mechanical claw 533 for film lifting.

[0109] The structure of this embodiment is simple and reasonably designed, and is used for pre-tearing a corner of the film.

[0110] In some embodiments, as shown in Figure 7 the rotary film tearing assembly 54 includes a film tearing base 541, a film tearing mechanical claw 542, a film tearing rotating member 543 and a gear transmission structure 544;

[0111] An annular slide rail is provided on the lifting base 51, and the film tearing base 541 is slidably arranged on the annular slide rail;

[0112] The film tearing rotating member 543 is rotatably installed on the film tearing base 541;

[0113] The gear transmission structure 544 is installed on the lifting base 51 and is drivingly connected to the film tearing rotating member 543 to drive the film tearing rotating member 543 to rotate;

[0114] The film tearing mechanical claw 542 is installed on the film tearing rotating member 543.

[0115] The film tearing mechanism 5 is further provided with a visual monitoring sensing component and a position movement sensing component, and the visual monitoring sensing component and the position movement sensing component are respectively installed on the lifting base 51.

[0116] Specifically, the inner surface and the tip of the film tearing mechanical claw 542 in this embodiment are provided with a silica gel layer, and a microarray structure is arranged on the silica gel layer, which is used to increase the clamping force during the film tearing process, so as to rotate and tear the film by clamping one end of the film. The film tearing process is closer to the manual film tearing process, avoiding damage to the film during the film tearing process.

[0117] Specifically, the gear transmission structure 544 in this embodiment includes a driver, a spur gear, an arc rack and a set of bevel gears. The arc rack is arranged on the film tearing base 541. Two positioning pulleys are arranged in the film tearing base 541. The two positioning pulleys ensure that the relative degree of freedom between the film tearing base 541 and the arc rack is 1. A set of bevel gears are meshed and connected, and the transmission ratio is 1:1. The transmission ratio between the spur gear and the arc rack is 1:15. The driver is drivingly connected to one of the bevel gears through a gear shaft, and the film tearing rotating member 543 is connected to the gear shaft.

[0118] In this embodiment, the working principle of the film tearing mechanism 5 is as follows. In the first working station, the film picking component 52 moves downward and cooperates with the second feeding mechanism 4 to clamp the film. Subsequently, the entire film tearing component rises, and the workbench 11 moves into the second working station. In the second working station, both the film tearing component and the film picking component 52 move downward until above the second flexible fitting component 62, and the film is adsorbed through the second silicone fitting pad 622. Subsequently, the film picking component 52 and the workbench 11 cooperate to complete the film placing operation. The film picking component 52 rises, the film lifting component 53 descends, the film lifting mechanical claw clamps a corner of the film protective film and then rises to tear a corner of the film protective film. Subsequently, the film tearing mechanical claw 542 cooperates with the visual monitoring component, specifically a CCD camera and a visual sensor, to clamp the torn part of the protective film. The rotating film tearing mechanism 5 moves along an arc track driven by a driving device, and the film tearing mechanical claw 542 rotates and moves under the action of a gear structure. During the film tearing process, the lifting base 51 slowly moves upward until the protective film is completely torn off.

[0119] In some embodiments, the second feeding mechanism 4 is provided with a second material storage box 41. The second material storage box 41 is arranged on the sliding seat 111. The second material storage box 41 is provided with a fixed clamp for fixing the position of the film stored in the second material storage box 41. The structure of this embodiment is simple and reasonable in design, facilitating the positioning and conveying of the film.

[0120] The above embodiments only represent several implementation manners of the present invention. The description is relatively specific and detailed, but it should not be construed as a limitation on the scope of the patent of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several modifications and improvements can still be made, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the appended claims.

Claims

1. A flexible curved surface film attaching device, characterized in that, It includes a frame, a pressure regulating mechanism, a first feeding mechanism, a second feeding mechanism, a film tearing mechanism, and a flexible laminating mechanism; A workbench and a base frame are provided on the frame. A sliding seat is installed on the workbench, and a film laminating slider and a film tearing slider are provided on the base frame; The first feeding mechanism is provided with a feeding component and a transferring component. The feeding component is arranged on the base frame and is used for conveying the curved glass to be laminated. The transferring component is arranged on the sliding seat and is used for transferring the curved glass of the feeding component to the flexible laminating mechanism; The second feeding mechanism is arranged on the sliding seat and is used for conveying the film to be torn; The film tearing mechanism is provided with a lifting base, a film picking component, a film lifting component, and a rotating film tearing component. The lifting base is connected to the film tearing slider. The film picking component is movably installed on the lifting base and is used for grasping the film to be torn located in the second feeding mechanism. The film lifting component is installed on the lifting base and is used for tearing the starting point of the film to be torn. The rotating film tearing component is installed on the lifting base and is used for tearing the film; The flexible laminating mechanism includes a first flexible laminating component and a second flexible laminating component. The first flexible laminating component is installed on the film laminating slider, and the second flexible laminating component is installed on the sliding seat and is located below the first flexible laminating component; The first flexible laminating component is provided with a film laminating base, a first silica gel laminating pad, and a flexible roller structure. The film laminating base is movably installed on the film laminating slider. The first silica gel laminating pad is arranged at the bottom end of the film laminating base. The flexible roller structure is hinged to the film laminating base and is located on the top surface of the first silica gel laminating pad and abuts against the first silica gel laminating pad; An array of cavities is arranged inside the first silica gel laminating pad, and an array of suction cup microstructures is arranged on the lower surface of the first silica gel laminating pad. The array of cavities and the array of suction cup microstructures are respectively connected to the pressure regulating mechanism through air ducts; The second flexible laminating component is provided with a clamping seat, a second silica gel laminating pad, and a film positioning structure. The clamping seat is installed on the sliding seat, and the second silica gel laminating pad and the film positioning structure are respectively installed on the clamping seat; A microstructure vacuum suction cup is arranged on the top side of the second silica gel laminating pad. The microstructure vacuum suction cup is connected to the pressure regulating mechanism through an air duct. The outer contour of the second silica gel laminating pad is matched with the inner surface contour of the curved glass to be laminated; During film lamination, the first silica gel laminating pad moves up and down and fits with the second silica gel laminating pad to complete the lamination of the curved glass and the film; Among them, the flexible roller structure includes a roller slider, a roller driving device, a first roller member, a second roller member, a third roller member, a fourth roller member, and an end link. The first roller member, the second roller member, the third roller member, and the fourth roller member are respectively provided with roller pressure sensors; The roller slider is clamped on the film laminating base, and a roller displacement sensor is arranged on the roller slider; The first roller member and the second roller member are respectively connected to the roller slider through springs, and are respectively arranged on the front and rear sides of the top of the first silicone bonding pad; The third roller member and the fourth roller member are respectively connected to the roller slider through springs, and are respectively arranged on the left and right sides of the top of the first silicone bonding pad; The end link is connected to the ends of the third roller member and the fourth roller member, and the top of the end link is directly connected through a tension spring; The roller driving device is arranged on the film sticking base and is drivingly connected to the roller slider; Wherein, the structures of the first roller member and the second roller member are set to be the same; The structures of the third roller member and the fourth roller member are set to be the same; In the non-working state, the first roller member, the second roller member, the third roller member and the fourth roller member hang down naturally, and the heights of the first roller member and the second roller member are higher than those of the third roller member and the fourth roller member, and the width between the first roller member and the second roller member is smaller than that of the third roller member and the fourth roller member.

2. The flexible curved surface film sticking device according to claim 1, characterized in that The first silicone bonding pad is embedded with a first controllable heating device, a first temperature sensor, a first pressure sensor and a displacement sensor; the second silicone bonding pad is embedded with a second controllable heating device, a second temperature sensor and a second pressure sensor.

3. The flexible curved surface film sticking device according to claim 1, wherein, The feeding assembly includes a first material storage box, a curved glass conveyor belt and a limiting wedge. The first material storage box is fixedly arranged on the base frame. The first material storage box is arranged with an upper and lower open structure. The curved glass conveyor belt is arranged in the first material storage box, and both ends of the curved glass conveyor belt are located at the upper and lower ends of the first material storage box. The curved glass conveyor belt is provided with a long strip-shaped convex structure for clamping the curved glass. The limiting wedge is rotationally arranged inside the lower opening of the first material storage box through a spiral spring.

4. The flexible curved surface film sticking device according to claim 1, characterized in that, The transfer assembly includes a transfer base, a lead screw driving device, a link structure, a slider structure and a pick-up and delivery table. The transfer base is arranged on the sliding seat. The pick-up and delivery table is connected to the transfer base through the link structure. The slider structure is arranged at the connection between the link structure and the transfer base. The lead screw driving device is installed on the transfer base and is drivingly connected to the slider structure to control the displacement of the slider structure and drive the pick-up and delivery table to move up and down for picking up and delivering the curved glass; The pick-up and delivery table is provided with a pick-up vacuum suction cup, a pick-up top pin, a pick-up pressure sensor and a pick-up distance sensor. The pick-up vacuum suction cup is connected to the pressure regulating mechanism through an air duct.

5. The flexible curved surface film sticking device according to claim 1, wherein, The film picking assembly includes a film picking seat, a film picking slide rail, an upper film picking mechanical claw, a lower film picking mechanical claw, a film picking limit block and a film picking driving device; The film picking seat is arranged on the lifting base; The film picking slide rail is installed on the film picking seat; The upper film picking mechanical claw and the lower film picking mechanical claw are arranged at intervals up and down on the film picking slide rail. The upper film picking mechanical claw and the lower film picking mechanical claw are respectively provided with a film picking microarray structure; The film picking limit block is installed on the film picking seat for positioning the film; The film taking driving device is arranged on the lifting base and is drivingly connected with the upper film taking mechanical claw.

6. The flexible curved surface film attaching device according to claim 1, wherein The film lifting assembly includes a film lifting base, a film lifting telescopic member, an upper film lifting mechanical claw, a lower film lifting mechanical claw and a film lifting driving device; The film lifting base is installed on the lifting base; The film lifting telescopic member is installed on the film lifting base; The upper film lifting mechanical claw and the lower film lifting mechanical claw are arranged at an interval in the up-and-down direction on the film lifting telescopic member; The film lifting driving device is installed on the film lifting base and is drivingly connected with the upper film lifting mechanical claw.

7. The flexible curved surface film sticking device according to claim 1, characterized in that The rotary film tearing assembly includes a film tearing base, a film tearing mechanical claw, a film tearing rotary member and a gear transmission structure; An annular slide rail is arranged on the lifting base, and the film tearing base is slidably arranged on the annular slide rail; The film tearing rotary member is rotatably installed on the film tearing base; The gear transmission structure is installed on the lifting base and is drivingly connected with the film tearing rotary member to drive the film tearing rotary member to rotate; The film tearing mechanical claw is installed on the film tearing rotary member.

8. The flexible curved surface film attaching device according to claim 1, wherein The film tearing mechanism is further provided with a visual monitoring sensing assembly and a position movement sensing assembly, and the visual monitoring sensing assembly and the position movement sensing assembly are respectively installed on the lifting base.

9. The flexible curved surface film applying device according to claim 1, wherein The second feeding mechanism is provided with a second material storage box, the second material storage box is arranged on the sliding seat, and the second material storage box is provided with a fixing clip for fixing the position of the film stored in the second material storage box.

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