CN110126428A - A kind of bonding structure for liquid crystal display and touch screen - Google Patents

Abstract

The technical field of the bonding structure of the present invention discloses a bonding structure for liquid crystal screens and touch screens, which is used for bonding liquid crystal screens and touch screens, and is characterized in that it includes a vacuum box assembly, a hard-to-hard calibration camera assembly, A jig assembly, a vertical drive mechanism, a guide assembly and an X-axis fine-tuning mechanism that are housed in the vacuum box assembly and are used to place a touch screen or an LCD screen; the vacuum box assembly includes a hard-to-hard lamination upper box assembly and a hard Hard-to-hard fit lower box assembly; by setting a hard-to-hard calibration camera component, the touch screen and LCD screen can be measured in real time, and the vertical drive mechanism drives the hard-to-hard fit upper box assembly and the hard-to-hard lower box The components are combined. At this time, the touch screen and the LCD screen are bonded in the fixture assembly. If there is a bonding error, directly adjust the bonding position of the touch screen and the LCD screen through the X-axis fine-tuning mechanism. It is simple and fast, and the bonding efficiency is high. The overall Compact structure, small footprint.

Description

A bonding structure for liquid crystal screen and touch screen

technical field

The technical field of the bonding structure of the patent of the present invention, specifically, relates to a bonding structure for a liquid crystal screen and a touch screen.

Background technique

In the touch screen industry, TP (touch panel touch screen) and LCM (LCD module) are bonded by a bonding device to form a liquid crystal display module with touchable function.

At present, the automatic bonding process is an important process in the production of touch screens. It needs to bond the LCM and the cover plate. During the process, the bonding operation is generally performed by flipping or vacuum pressing.

In the prior art, the bonding device is a vacuum pressing method, but there are still the following problems: the bonding accuracy of the vacuum bonding without correction is relatively poor, and the problem of dislocation bonding is prone to occur, so the production efficiency of the whole process is low.

Contents of the invention

The object of the present invention is to provide a bonding structure for a liquid crystal screen and a touch screen, aiming at solving the problem of low bonding precision in the prior art.

The present invention is achieved in this way, a laminating structure for liquid crystal screen and touch screen, used for laminating liquid crystal screen and touch screen, including vacuum box assembly, hard pair for correcting the placement position of liquid crystal screen and touch screen A hard correction camera assembly, a jig assembly accommodated in the vacuum box assembly and used to place a touch screen or a liquid crystal screen, a vertical drive mechanism for providing the opening and closing power of the vacuum box assembly, and a guide for guiding the The guide assembly for lifting or lowering the vacuum box assembly and the X-axis fine-tuning mechanism for fine-tuning the position provided on the vacuum box assembly; the vacuum box assembly includes a hard-to-hard bonding upper box components and hard-to-hard fit lower case components.

Further, the hard-to-hard calibration camera assembly includes a touch screen calibration camera assembly for calibrating the position of the touch screen and a liquid crystal screen calibration camera assembly for calibrating the liquid crystal screen.

Further, the touch screen correction camera assembly includes a prism fixing plate for setting prisms, an upwardly arranged touch screen correction camera for shooting alignment; the liquid crystal screen correction camera assembly includes a liquid crystal screen for shooting alignment Directly facing down LCD screen alignment camera, coaxial light source for directly illuminating the product, vertical mounting plate for mounting the camera and light source emitting coaxial light, LCD screen drive mechanism for moving the vertical mounting plate.

Further, the jig assembly includes an upper jig mechanism and a lower jig mechanism, the hard-to-hard lamination upper box assembly is fixedly arranged with the upper jig mechanism, and the hard-to-hard lamination lower box The assembly and the lower jig mechanism are arranged in a fixed manner. When the hard-to-hard fit upper box assembly and the hard-to-hard fit lower box assembly are pressed together, the upper jig mechanism and the lower jig The jig mechanism forms a sealed space; the upper jig mechanism has an adjustment block and a buffer block, and when the upper jig mechanism is attached to the lower jig mechanism, adjustment and buffering can be performed.

Further, the hard-to-hard fitting upper case assembly includes a hard-to-hard fitting upper case, a vertical drive mechanism for driving the hard-to-hard fitting upper case to move up and down, and a vertical drive mechanism for fixing the Hard-to-hard fit upper box mounts for hard-to-hard fit upper boxes.

Further, the lower surface of the hard-to-hard fitting lower box mounting base forms four vertically downward support shafts, and the upper surface of the hard-to-hard fitting lower box is arranged with four linear bearings, The linear bearing is movably connected with the support shaft; the hard-to-hard fitting lower box mounting base moves vertically up and down relative to the hard-to-hard fitting lower box.

Further, the hard-to-hard fitting lower box assembly includes a hard-to-hard fitting lower box, guide rails for bearing the lower box assembly, and a hard pair for driving the hard-to-hard fitting lower box. Hard driving device; the hard-to-hard driving device includes a screw rod and a hard-to-hard servo motor.

Further, the hard-to-hard lamination lower box assembly also includes a lifting cylinder arranged under the hard-to-hard lamination lower box, and the lifting cylinder drives the hard-to-hard lamination lower box to move up and down .

Further, the vertical driving mechanism includes a vertical servo motor and a vertical screw rod for transmission.

Further, the connecting shaft and the upper vacuum cover are also included, and a sealing assembly for preventing leakage of vacuum is arranged between the connecting shaft and the upper vacuum cover.

Compared with the prior art, the present invention provides a bonding structure for liquid crystal screen and touch screen. By setting the hard-to-hard calibration camera assembly, the touch screen and liquid crystal screen can be measured in real time, and the vertical drive mechanism drives the hard The upper box assembly and the lower box assembly are combined with the hard-to-hard fit. At this time, the touch screen and the LCD screen are attached in the fixture assembly. If there is a fitting error, directly adjust the touch screen and the LCD screen through the X-axis fine-tuning mechanism. The bonding position of the screen is simple and fast, the bonding efficiency is high, the overall structure is compact, and the floor space is small.

Description of drawings

Fig. 1 is a schematic perspective view of the front of a bonding structure for a liquid crystal screen and a touch screen provided by the present invention;

Fig. 2 is a schematic perspective view of the back of a bonding structure for a liquid crystal screen and a touch screen provided by the present invention;

Fig. 3 is a three-dimensional schematic view of the ion cleaning mechanism provided by the present invention;

Fig. 4 is a schematic perspective view of the front of the soft-to-hard lamination loading and unloading mechanism provided by the present invention;

Fig. 5 is a three-dimensional schematic diagram of the soft-to-hard lamination feeding mechanism provided by the present invention;

Fig. 6 is a three-dimensional schematic diagram of the soft-to-hard lamination blanking mechanism provided by the present invention;

Fig. 7 is a three-dimensional schematic diagram of a touch screen loading and turning platform provided by the present invention;

Fig. 8 is a three-dimensional schematic diagram of an optical adhesive stack feeding assembly provided by the present invention;

Fig. 9 is a three-dimensional schematic diagram of an optical glue retrieving and absorbing mechanism provided by the present invention;

Fig. 10 is a schematic perspective view of an optical glue feeding platform assembly provided by the present invention;

Fig. 11 is a three-dimensional schematic diagram of the optical glue feeding manipulator assembly provided by the present invention;

Fig. 12 is a three-dimensional schematic diagram of the heavy-release type lower tearing film mechanism provided by the present invention;

Fig. 13 is a schematic perspective view of the hard-to-hard lamination upper box assembly provided by the present invention;

Fig. 14 is a three-dimensional schematic diagram of the feeding mechanism for small ears provided by the present invention;

Fig. 15 is a schematic perspective view of the hard-to-hard lamination lower box assembly provided by the present invention;

Fig. 16 is a three-dimensional schematic diagram of a touch screen calibration camera assembly provided by the present invention;

Fig. 17 is a three-dimensional schematic diagram of a liquid crystal screen correction camera assembly provided by the present invention;

Fig. 18 is a schematic diagram of the front of the hard-to-hard lamination upper box provided by the present invention;

FIG. 19 is a schematic diagram of the electrical connection between electronic components used in the bonding structure of the liquid crystal screen and the touch screen provided by the present invention.

Detailed ways

In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

The implementation of the present invention will be described in detail below in conjunction with specific embodiments.

In the drawings of this embodiment, the same or similar symbols correspond to the same or similar components; The indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, or in a specific orientation. Construction and operation, so the words describing the positional relationship in the drawings are only for illustrative purposes, and should not be construed as limitations on this patent. Those of ordinary skill in the art can understand the specific meanings of the above terms according to specific situations.

Referring to Figures 1-19, it is a preferred embodiment of the present invention.

Automatic bonding equipment for LCD screens, used to bond LCD screens and touch screens through optical glue, including touch screen feeding mechanism 101, soft-to-hard lamination loading and unloading structure 1 suitable for touch screens, optical glue feeding mechanism, Bonding net box mechanism 5, vacuum box assembly, sampling inspection mechanism 7, the vacuum box assembly includes a hard-to-hard lamination upper box 3222 and a hard-to-hard lamination lower box 3227, the optical glue feeding mechanism includes an optical glue take-out The material manipulator 4; the optical glue feeding platform 2106 assembly includes the optical glue feeding manipulator 301; the touch screen feeding mechanism 101 is used for touch screen feeding, and the soft-to-hard bonding loading and unloading structure 1 suitable for the touch screen is used for the touch screen transfer and Bonding, bonding cage mechanism 5 is used to bond the touch screen with optical glue, and is suitable for soft-to-hard bonding of the touch screen. The loading and unloading structure 1 is used to carry the touch screen, and the vacuum box assembly is used to vacuum the touch screen and LCD screen Bonding, sampling mechanism 7 is used for random inspection of the touch screen, hard-to-hard lamination upper box 3222 is used to absorb the touch screen, hard-to-hard lamination lower box 3227 can be used for putting in the LCD screen, and the optical glue retrieving manipulator 4 is used to extract the touch screen. The optical glue feeding mechanism sucks the optical glue to the optical glue feeding platform 2106 .

After the touch screen feeding mechanism 101 loads the touch screen, the soft-to-hard lamination loading and unloading structure 1 suitable for the touch screen transfers the touch screen to the designated lamination position, and then the optical glue retrieving robot 4 takes it out from the optical glue feeding mechanism Optical glue, and transported to the laminating cage mechanism 5 by the optical glue retrieving manipulator 4 and the optical glue feeding platform 2106, and then the touch screen is first bonded by the optical glue, and then bonded hard-to-hard by the vacuum box assembly The box body 3222 is adsorbed, and then the hard-to-hard-fit lower box 3227 with the LCD screen is moved to the bottom of the hard-to-hard-fit upper box 3222, and the hard-to-hard-fit lower box 3227 and the hard-to-hard stick Close the cabinet 3222 to vacuumize the bonding between the LCD screen and the touch screen, and complete the bonding process of the LCD screen and the touch screen; the whole process is realized by automatic transfer and cooperation of multiple mechanisms, and multiple bonding can be realized on one device Combined process, without the need to cooperate with multiple complete equipment, reduces equipment costs, improves production automation, and ultimately improves production efficiency.

In addition, the automatic bonding equipment for LCD screens also includes a liquid crystal screen positioning mechanism 8. The liquid crystal screen positioning mechanism 8 includes a correction piece and a correction cylinder. The correction piece includes a positioning wheel and a positioning assembly. The positioning assembly includes a coarse adjustment handle and a fine adjustment screw. The correction piece is used for correction, the correction cylinder is used for pushing the correction piece, the positioning wheel is used for positioning, the positioning component is used for positioning and correction, and the fine-tuning screw is used for fine-tuning the position of the LCD screen.

By setting the liquid crystal screen positioning mechanism 8, accurate material feeding can be realized during feeding, and a correction piece is provided to correct the liquid crystal screen during transportation.

In addition, the optical glue is attached with an upper film and a lower film, and the automatic laminating equipment for LCD screens also includes a small ear feeding mechanism 9, a heavy-release type lower tear film structure 10 for optical glue, and a light-release upper film structure. Tear film mechanism 11, the upper tear film mechanism 11 of the light release type includes a clamping cylinder; the small ear feeding mechanism 9 is used to provide small ears, and the heavy release type lower tear film structure 10 for optical glue is used for tearing off with small ears The lower film is attached, and the upper tearing film mechanism 11 of the light release type is used to tear off the upper film by means of small ears, and the clamping cylinder is used to clamp small ears.

By setting the small ear feeding mechanism 9 and the heavy release type lower tear film structure 10 for optical glue, the whole process of automatic film tearing can be realized.

Specifically, the light release type upper tearing film mechanism 11 is equipped with a clamping cylinder on the Y axis, and an angle-adjustable servo motor is installed at the rear of the clamping cylinder, which realizes the adjustable angle of the clamping cylinder, which is convenient It can clamp small ears, and can also turn the angle to tear off the diaphragm on the cover.

In addition, the automatic bonding equipment for liquid crystal screens also includes a soft-to-hard feeding gantry 12; the soft-to-hard feeding gantry 12 is used to carry the light-release type tearing film mechanism 11 and the optical glue feeding arm.

Specifically, by arranging two mechanisms together at the same time, it is possible to realize double-station working at the same time.

In addition, the small ear feeding mechanism 9 includes a synchronous wheel, a synchronous belt, a plurality of guide wheels 903 and a material receiving wheel 904, the chuck 905 is formed with a stopper 906, and an optical fiber switch 908 is arranged below the material belt 907; The synchronous wheel and the drive wheel of the servo motor rotate synchronously, the guide wheel 903 drives the material belt 907 to rotate, the chuck 905 is formed with the chuck 905, and the optical fiber switch 908 is used to detect whether there is a product passing through.

Specifically, the soft-to-hard bonding loading and unloading structure 1 suitable for touch screens includes a touch screen adsorption assembly 102, and the automatic bonding equipment for liquid crystal screens also includes an ion cleaning mechanism 13 and a touch screen feeding and turning platform 14 for turning the touch screen over. , the touch screen feeding manipulator arm 15 for transferring the touch screen from the touch screen feeding turning platform 14 to the intermediate carrier 17, the touch screen feeding camera assembly 16 for correction, and the touch screen transferring from the intermediate carrier 17 to the touch screen The touch screen loading and transferring platform 18 of the suction assembly 102 .

Specifically, the touch screen loading and turning platform 14 includes a turning plate 1401, a reducer 1403 for placing excessive turning force, a turning motor 1404 for turning the touch screen, and a slide cylinder 1405 for height adjustment. The slide cylinder 1405 realizes The mechanism moves up and down stably and the height can be adjusted reasonably. The flap 1401 is provided with a suction nozzle, which ensures the adsorption and fastening of the touch screen.

Specifically, the ion cleaning mechanism 13 includes an ion wind bar 1301 for cleaning the touch screen once and a fan 1302 for blowing out an air knife for secondary cleaning of the touch screen; when the touch screen is loaded and passes through the ion cleaning mechanism 13, the ion The air bar 1301 cleans the touch screen once, and the air knife cleans the touch screen twice when the touch screen feed transfer platform 19 passes through this structure. The two cleanings reduce the static electricity and foreign matter on the product surface and improve the product yield.

Specifically, the touch screen loading and transferring platform 18 includes a calibration platform assembly, a pen-shaped air cylinder for high-speed transmission, and a spring support column for fixedly arranging the calibration platform assembly and the bottom mounting plate.

Specifically, the touch screen feeding camera assembly 16 performs CCD alignment on the touch screen.

Specifically, the automatic bonding equipment for liquid crystal screens also includes an optical glue lamination feeding assembly 20 for storing optical glue and an optical glue retrieving manipulator 4 for taking out the stored optical glue. The optical glue lamination feeding assembly 20 It has two stations, and one of them is located at the pick-up position of the optical glue lamination feeding assembly 20; batch lamination is used for feeding, and the lower part is lifted by a servo-driven screw module, with precise movement and double-station rotation. It achieves non-stop when loading OCA materials, and the machine has high efficiency.

Specifically, the optical glue retrieving manipulator 4 is composed of a Y-axis servo motor-driven screw module, a Z-axis feeding cylinder, and an adsorption component using a shaker cylinder suction pen 2013; the module moves to the OCA film retrieving position, and the Z-axis The lower position of the cylinder, the lower position of the shaker cylinder, the suction film of the adsorption component, the upper position of the Z-axis cylinder, the 4 shaker cylinders perform shaking and distribution, and then the cylinder resets, and the Y-axis module reaches the discharge position to complete the material retrieving. The module realizes fast loading of OCA, and the shaking cylinder reduces the loading of laminations.

Specifically, it also includes an optical glue feeding platform 2106 for transferring the optical glue to the pick-up position of the optical glue handling mechanism. The optical glue feeding platform 2106 includes a vacuum platform 2101 for the optical glue taking manipulator 4 to place the optical glue; The optical glue feeding platform 2106 is composed of an X-axis pen-shaped cylinder, a platform guiding cylinder, and a lamination detection component; the optical glue feeding manipulator 301 uses a sliding table cylinder 1405 on the Z axis, and the suction component adopts a suction nozzle; the optical glue feeding platform 2106 has a feeding position Taking material, the detection component detects whether the OCA is laminated, such as lamination, the guide cylinder rotates vertically to shake the material, and then the pen-shaped cylinder drives the platform to the lower material level (if there is no laminate, skip the guide cylinder stage); the loading arm to the loading position, the lower position of the Z-axis cylinder, the adsorption component absorbs the film, and after the Z-axis cylinder is reset, the material is unloaded to the No. 1 or No. 2 net cage according to the signal, and the material is loaded successfully; the detection component and the guide cylinder realize the secondary shaking of the material, reducing OCA Loading laminations to achieve precise loading.

Specifically, the bonding cage mechanism 5 is internally provided with bonding rollers for bonding the optical glue and the touch screen; it is composed of a servo-driven screw module, a guide rail, a net cage, a net plate, and bonding rollers; the screw module Drive the net cage to the OCA loading position for loading, take pictures at the camera position, and then go to the lamination position. The servo inside the net cage drives the screw module, and the lamination roller moves to complete the lamination.

Specifically, the automatic bonding equipment for LCD screens also includes a finished product transfer platform 23 for transferring finished products; the Y axis uses a servo motor to drive the screw module to achieve accurate positioning and high-efficiency transmission; the platform uses an electric turntable, and the platform It can be rotated to realize precise alignment before blanking and uniform blanking position.

Specifically, the automatic bonding equipment for liquid crystal screens also includes a camera mechanism 24 for up and down detection after tearing off the film for CCD alignment of the product.

Specifically, the automatic laminating equipment for liquid crystal screens also includes a soft-to-hard unloading delivery arm 25 for transferring the touch screen with optical glue to the bottom of the hard-to-hard lamination upper box 3222 .

Specifically, the vacuum box assembly includes a touch screen calibration camera mechanism for photographing the position of the touch screen, and a liquid crystal screen calibration camera mechanism for photographing the position of the liquid crystal screen.

Specifically, in the sampling mechanism 7, the Y-axis adopts a pen-shaped cylinder, and the Z-axis adopts a sliding table cylinder 1405; after the Z-axis cross suction plate absorbs the product, the sliding table cylinder 1405 is at the upper position, and the pen-shaped cylinder returns to the lowering position to complete the sampling inspection; sampling components Realized non-stop product inspection and improved production efficiency.

Specifically, the automatic bonding equipment for LCD screens also includes a hard-to-hard touch screen feeding mechanism 27101 for touch screen feeding, which is supported by gantry weldments, and the unloading arm is composed of a Z-axis lifting cylinder and a material adsorption suction cup. The linear motor can carry out high-precision and high-speed loading of multiple station stages to improve production efficiency.

Specifically, the automatic bonding equipment for liquid crystal screens also includes a hard-to-hard touch screen carrier 28 for storing the touch screen, which is driven by a servo screw module, and the bearing spring under the placement plate is conducive to reducing the buffer when taking materials from the upper chamber. Vertical frictional resistance protects the product.

Specifically, the automatic bonding equipment for LCD screens also includes a hard-to-hard camera correction mechanism, both of which are supported by gantry weldments, installed on a linear motor to take pictures back and forth at double stations to improve camera utilization and achieve fast and accurate; LCD The screen camera is fixed by the workpiece through a prism for photo alignment, and the LCD screen camera is vertically aligned with the product to directly take pictures of the light source to provide appropriate brightness for it, which is conducive to improving the lamination accuracy.

Specifically, the automatic bonding equipment for liquid crystal screens also includes a liquid crystal screen manipulator mechanism 30 for taking out liquid crystal screens and an empty disk limit mechanism 31 for limiting empty disks. The overall assembly adopts a servo driven screw module, The X-axis adopts a double gantry to support the reclaiming robot arm and the empty material tray unloading arm, and the adsorption components all use suction nozzles; when retrieving materials, the X and Y axes of the reclaiming robot arm move to the top of the material tray, and the Z-axis cylinder is at the lower position. The liquid crystal screen products in the material tray are taken sequentially; when there is no liquid crystal screen in the material tray, the X-axis cylinder of the retrieving tray manipulator retracts to the position above the material tray, the Z-axis descends to the material tray, and the Z-axis rises after the adsorption component is absorbed, and the X Axis cylinder stretches out, and empty tray blanking is in the empty tray limit mechanism 31.

Each component of the automatic bonding equipment used for LCD screens is electrically connected to the control part, and the control program is not the content of the invention, so it will not be described here.

A bonding structure 32 for liquid crystal screen and touch screen, used for bonding liquid crystal screen and touch screen, including vacuum box assembly 3201, hard-to-hard correction camera assembly, jig assembly 3214, vertical driving mechanism 3215, guide assembly 3216 and X-axis fine-tuning assembly 3317; the vacuum box assembly 3201 includes a hard-to-hard lamination upper box assembly 3202 and a hard-to-hard lamination lower box assembly 3203; a hard-to-hard correction camera assembly is used for liquid crystal screen and touch screen swing The position is corrected, the fixture assembly 3214 is accommodated in the vacuum box assembly 3201 and used to place a touch screen or LCD screen, the vertical drive mechanism 3215 is used to provide the opening and closing power of the vacuum box, and the guide assembly 3216 is used to guide the vacuum box The body is lifted up or pressed down, and the X-axis fine-tuning assembly 3317 is provided on the vacuum box assembly 3201 for fine-tuning the position.

By setting the hard-to-hard calibration camera assembly, the touch screen and the LCD screen can be measured in real time, and the vertical drive mechanism 3215 drives the hard-to-hard bonding upper box assembly 3202 to combine with the hard-to-hard lower box assembly. At this time, the touch screen and The LCD screen is bonded in the fixture assembly 3214. If there is a bonding error, the bonding position of the touch screen and the LCD screen can be adjusted directly through the X-axis fine-tuning assembly 3317. It is simple and fast, and the bonding efficiency is high. The overall structure is compact and occupies an The area is small.

The hard-to-hard calibration camera assembly includes a touch screen calibration camera assembly 3204 for calibrating the position of the touch screen and an LCD screen calibration camera assembly 3205 for calibrating the LCD screen.

The touch screen correction camera assembly 3204 includes a prism fixing plate 3206 for setting prisms, an upwardly arranged touch screen correction camera for shooting alignment; an LCD screen correction camera assembly 3205 includes a directly downward facing liquid crystal screen for shooting alignment The LCD screen corrects the camera, the coaxial light source 3211 for directly irradiating the product, the vertical fixed plate for fixing the camera and the light source emitting coaxial light, and the LCD screen driving mechanism for moving the vertical fixed plate.

The jig assembly 3214 includes an upper jig mechanism 3218 and a lower jig mechanism 3219. The upper box assembly 3202 and the upper jig mechanism 3218 are fixedly arranged hard to hard, and the lower box assembly 3203 and the lower jig are fitted hard to hard. The mechanism 3219 is fixedly arranged. When the hard-to-hard fitting upper box assembly 3202 is pressed together with the hard-to-hard fitting lower box assembly 3203, the upper jig mechanism 3218 and the lower jig mechanism 3219 form a sealed space; the upper jig mechanism 3218 has an adjustment block 3220 and a buffer block 3221. When the upper jig mechanism 3218 and the lower jig mechanism 3219 are attached, adjustment and buffering can be performed.

The hard-to-hard fitting upper box assembly 3202 includes a hard-to-hard fitting upper box 3222, a vertical drive mechanism 3215 for driving the hard-to-hard fitting upper box 3222 to move up and down, and a hard-to-hard fitting The hard-to-hard fit upper box 3222 of the upper box 3222 is a hard-to-hard fit upper box mounting seat 3224, and an X-axis fine-tuning assembly 3317 for fine-tuning the X-axis position of the hard-to-hard fit upper box 3222.

The vertical driving mechanism 3215 includes a servo screw rod for transmission and a power element for providing power.

The lower surface of the hard-to-hard fitting lower box 3227 is hard-to-hard fitted to the lower surface of the upper box mounting seat 3224 to form four vertically downward support shafts 3226, and the upper surface of the hard-to-hard fitted lower box 3227 is arranged with four Linear bearing 3225, bearing and support shaft 3226 movable connection arrangement; Hard-to-hard fitting lower box body 3227 Hard-to-hard fitting upper box mounting seat 3224 moves vertically up and down relative to hard-to-hard fitting lower box body 3227.

Specifically, the hard-to-hard fitting lower box assembly 3203 includes a hard-to-hard fitting lower box 3227, a guide rail for bearing the lower box assembly, and a hard-to-hard fitting for driving the hard-to-hard fitting lower box 3227. The driving device 3228; the hard-to-hard bonding device 32 includes a screw rod and a hard-to-hard servo motor.

Specifically, the hard-to-hard lamination lower box assembly 3203 further includes a lifting cylinder disposed below the hard-to-hard lamination lower box 3227, and the lifting cylinder drives the hard-to-hard lamination lower box 3227 to move up and down.

The vertical driving mechanism 3215 includes a vertical servo motor, a vertical screw for transmission, and a guide rail for connecting with the vertical screw.

Specifically, a sealing assembly for preventing leakage of vacuum is provided between the connecting shaft and the upper vacuum cover.

The hard-to-hard lamination upper box assembly 3202 is supported by the gantry weldment. The servo screw and DD motor drive can ensure that the alignment can be quickly and accurately adjusted to the appropriate position to ensure the lamination accuracy. The vacuum in the cavity is detected by the vacuum pressure gauge. The PLC controls the vacuum pump through the on and off of the solenoid valve to achieve vacuuming and bonding. The upper cavity is hard-to-hard. And the buffer block 3221 can adjust the proper amount of depression of the cavity. The surface of the suction plate of the upper cavity jig has a soft board of Uril glue, which is beneficial to protect the product, and there is a small gap during pressing to facilitate the gas discharge of the two plates, effectively reducing the generation of air bubbles.

The hard-to-hard touch screen and the LCD screen calibration camera assembly 3205 are supported by the gantry weldment and installed on the linear motor to take pictures back and forth at double stations to improve the utilization rate of the camera and achieve fast and accurate. The LCD screen camera is fixed by the workpiece through the prism for photo alignment. The LCD screen camera is vertically aligned with the product to directly take pictures of the light source to provide appropriate brightness for it, which is conducive to improving the lamination accuracy.

The hard-to-hard fitting lower box assembly 3203 adopts servo screw drive to quickly and accurately reach the camera position and fitting position. The cylinder under the fitting fixture plate and the linear bearing 3225 make the lifting movement smooth and stable, and the load is evenly distributed, corresponding to the product size The use of laminating fixtures enables the equipment to handle multiple types of operations at the same time.

Each component in a bonding structure 32 for a liquid crystal screen and a touch screen is electrically connected to the control part, and the control program of the control part is not the content of the invention, so it will not be repeated here.

An optical glue feeding mechanism is used for loading optical glue, including an optical glue lamination feeding assembly 20, an optical glue retrieving manipulator 4, and an optical glue feeding platform 2106 assembly; the optical glue lamination feeding assembly 20 is used It is used for stacking multi-layer optical adhesive laminates, including a supporting plate 2001, an optical adhesive refill base plate 2002, and a driving mechanism for driving the optical adhesive lifting plate to move up and down. The driving mechanism includes a motor and a linear module, and the motor and the linear module drive Connection; the side periphery of the optical glue refill base plate 2002 is also provided with a plurality of positioning columns 2003; the optical glue retrieving manipulator 4 is used for retrieving, and the optical glue feeding platform 2106 assembly is used to transfer the optical glue to the optical glue feeding manipulator 301 Assemblies, the optical adhesive refill base plate 2002 is used to carry the optical adhesive stack of the LCD screen, the driving mechanism is used to drive the optical adhesive lifting plate to move up and down, and the positioning column 2003 is used to position the optical adhesive stack.

The optical glue is loaded through the optical glue stack feeding component, and then the optical glue is transferred by the optical glue retrieving manipulator, and then the optical glue feeding platform component is transferred to a position that can be taken away by the optical glue feeding manipulator component. In this way, the integrated process of optical glue retrieving and loading is realized, and the whole process does not require manual participation, which greatly increases production efficiency.

Specifically, the optical glue lamination feeding mechanism also includes a horizontally driven feeding guide rail 2004 and a guide rail connecting plate 2005, the lower surface of the guide rail connecting plate 2005 is provided with a guide block, the guide block is movably connected with the guide rail, and the optical glue lifting plate and the driving mechanism Relative to the fixed arrangement, the guide rail is provided with a hard limit mechanism 2006, a feeding hydraulic buffer 2007 for buffering, and a feeding pen-shaped cylinder 2008.

The optical glue retrieving manipulator 4 includes an optical glue retrieving and absorbing mechanism 2009 and an optical glue retrieving gantry 2010 for loading the optical glue retrieving and absorbing mechanism 2009, and the optical glue absorbing mechanism includes an optical glue retrieving and absorbing mechanism for absorbing optical glue Component 2011, the optical glue retrieving and absorbing component 2011 includes a vertical adsorption cylinder 2012, a suction pen 2013 for absorbing optical glue, and a fixing piece 2014 for fixing the suction pen 2013; the fixing piece 2014 is provided with openings, and the vertical suction cylinder 2012 passes through the fixing part 2014.

The optical glue adsorption mechanism also includes an adsorption frame body 2015 and a guide rail. The adsorption frame body 2015 is fixedly arranged relative to the guide rail and the guide rail.

The optical glue adsorption mechanism and the optical glue retrieving gantry 2010 are relatively fixedly arranged. The optical glue retrieving and absorbing mechanism 2009 includes a retrieving slide table, a solenoid valve and a module connecting plate. The optical glue retrieving gantry 2010 is formed with slide rails. The sliding table and the sliding rail are arranged in a movable connection; the module connecting plate and the optical glue picking and absorbing assembly 2011 are arranged relatively fixedly. Arrangement, facing up and fixed arrangement with the module connecting plate.

Specifically, the optical glue feeding platform 2106 assembly includes an X-axis pen-shaped cylinder, an optical glue rotary cylinder 2103 for adjusting the position, and an optical glue lamination detection component 2104 for checking whether the laminate is laminated; the optical glue detection component includes an optical glue detection Module 2105, optical glue feeding platform 2106 for holding optical glue, guide frame 2107 for erecting optical glue lamination detection module; optical glue detection module 2105 includes through-beam optical fiber parts and lamination digital display vacuum Table, the outlet of the through-beam optical fiber is towards the optical glue feeding platform 2106.

Specifically, the optical glue feeding platform 2106 assembly also includes two parallel feeding parallel slide rails 2110, a hard limit mechanism 2006 arranged at one end of the feeding parallel slide rails 2110, and a buffer for optical glue stack detection assembly 2104. Hydraulic buffer, the X-axis pen-shaped cylinder is erected between two feeding parallel slide rails 2110; the lower end of the guide frame 2107 forms a slider, which is flexibly connected with the feeding parallel slide rails 2110; the optical glue feeding platform 2106 has a lower On the end face, the optical glue rotary cylinder 2103 is arranged on the lower end face of the optical glue feeding platform 2106 .

The outlet of the through-fiber optic is slightly higher than the optical glue feeding platform 2106, and the laminated digital display vacuum gauge is fixedly arranged with the guide frame 2107, and the through-fiber optic is electrically connected with the laminated digital display vacuum gauge.

Specifically, the assembly of the optical glue feeding manipulator 301 includes an optical glue feeding and absorbing component 2031, an optical glue feeding slide cylinder 2032 for providing power, and an optical glue feeding mechanism for assisting the optical glue feeding and absorbing component 2031 to move up and down. The sliding assembly 2033; the optical glue feeding adsorption assembly 2031 includes a feeding suction pen 2034, a feeding fixture 2035 for fixing the feeding suction pen 2034; The upper end of 2034 is fixedly arranged with the material loading adsorption frame 2036.

Specifically, the optical glue feeding sliding assembly 2033 includes a feeding sliding guide rail 2037, a control block 2038 and a cylinder connecting plate 2039, the optical glue feeding slide table cylinder 2032 and the cylinder connecting plate 2039 are fixedly arranged, and the control block 2038 and the cylinder connecting plate 2039 Arranged fixedly, the control block 2038 is formed with a material feeding movable slide block which is movably connected with the material feeding sliding guide rail 2037.

Each component of the optical glue feeding mechanism is electrically connected to the control part, and the control program of the control part is not the content of the invention, so it will not be described here.

The heavy release type lower tear film structure 10 for optical adhesive also has the following embodiment.

The heavy-release type lower tear film structure 10 for optical adhesive is used to clamp and tear off the protective film, including a clamping mechanism 1001 for clamping the protective film, an adapter for installing the clamping jaw cylinder 1002, and an arrangement On the Y axis, the tearing film slide table cylinder 1004 for distance, the top mechanism 1005 for controlling pressing, the tearing film detection mechanism 1006 for detecting the height of the position, and the angle fine-tuning motor 1007 for adjusting the angle of the jaw cylinder 1002; The plug mechanism 1005 includes a plug cylinder 1008 and a protruding part, and the protruding part faces the small ear.

During processing, use the clamping mechanism to clamp the protective film, and use the film tearing slide cylinder to adjust the relative position, and use the angle fine-tuning mechanism to drive the clamping cylinder to fine-tune the clamping angle of the clamping mechanism. The film detection mechanism is used to realize accurate position and height detection, so that the clamping angle of the clamping mechanism can be fine-tuned according to the protective film, and the effect of accurate clamping and tearing can be achieved.

In addition, the heavy release type lower tearing film structure 10 for optical glue includes a clamping jaw cylinder 1002 arranged on the X axis for driving the clamping jaws of the small ears; the position of the small ear feeding mechanism is fixed, and the two sides All the tearing hands can complete the material retrieving, and the angle of the jaw cylinder 1002 can be adjusted, which is convenient for picking up small ears, and can turn the angle to tear the diaphragm on the touch screen.

Specifically, the protruding part is movably connected to the plug cylinder 1008, and the tear film detection mechanism 1006 is fixedly connected to the plug mechanism 1005. The tear film detection mechanism 1006 has a launch port, and the launch port faces the small ear.

Specifically, the clamping mechanism 1001 includes a first clamping block 1011 and a second clamping block 1012 that are oppositely arranged and form a clamping opening, and are fixedly installed on the clamping jaw cylinder 1002 and are connected with the first clamping block 1011 and the second clamping block. The holding block 1012 is slidably fitted with a guide piece, and the guide piece is provided with a sliding groove for the first holding block 1011 and the second holding block 1012 to slide.

Specifically, a first clamping slider is formed at one end of the first clamping block 1011, a second clamping slider is formed at one end of the second clamping block 1012, and the first clamping slider and the second clamping slider are respectively connected to Sliding groove active connection arrangement.

Specifically, when the first clamping slider collides with the second clamping slider, there is a certain distance between the first clamping block 1011 and the second clamping block 1012, and the first clamping block 1011 and the second clamping block 1012 form Hook-like arrangement.

Specifically, the drive shaft of the angle fine-tuning motor 1007 is vertically installed on the jaw cylinder 1002 .

Specifically, the driving mechanism includes a vertical sliding table cylinder 1015 installed on the adapter and driving the jaw cylinder 1002 and the clamping mechanism 1001 to move up and down.

Specifically, the heavy-release type lower tearing film structure 10 for optical glue also includes a tearing film module 1016 fixedly arranged with the tearing film slide cylinder 1004, and the tearing film module 1016 includes a tearing film module 1016 for driving The tearing film drive motor 1017 moving back and forth, the tearing film guide rail 1019 for holding the module, the motor base 1018 for holding the tearing film driving motor 1017; the tearing film driving motor 1017 and the motor base 1018 are fixedly arranged, and the motor base 1018 Fixed arrangement with one end of tear film guide rail 1019.

Specifically, the adapter includes a first plate 1020 for installing the jaw cylinder 1002 and a second plate 1021 extending vertically along one side of the first plate 1020 for fixing the angle fine-tuning motor 1007, and the angle fine-tuning motor 1007 is arranged on In the L-shaped space formed by the first board 1020 and the second board 1021 .

Specifically, the connector forms a first plate 1020, on which a first limit block 1022 and a second limit block for limiting the angle of the jaw cylinder 1002 are formed, and an angle limiter is formed on the shaft of the angle fine-tuning motor 1007. When the position post and the angle limit post touch the first limit block 1022 and the second limit block, the jaw cylinder 1002 will no longer move.

Specifically, the vertical slide cylinder 1015 is mounted on the back side of the first plate 1020 .

Each component of the heavy-release lower tear film structure 10 for optical adhesive is electrically connected to the control part, and the control program of the control part is not the content of the invention, so it will not be described here.

The soft-to-hard lamination loading and unloading structure 1 suitable for touch screens performs loading and unloading operations on touch screens, including soft-to-hard touch screen loading mechanisms 101, soft-to-hard touch screen unloading mechanisms 127 and soft-to-hard lamination gantry mechanisms 2, soft The hard touch screen feeding mechanism 101 includes a touch screen feeding adsorption assembly and a loading module fixture 103, the touch screen feeding adsorption assembly is relatively fixedly connected with the loading module fixture 103, and the soft-to-hard touch screen unloading mechanism 127 includes a blanking The adsorption assembly 104 and the blanking module fixture 105, the blanking adsorption assembly 104 is relatively fixedly connected with the blanking module fixture 105, the soft-to-hard touch screen feeding mechanism 101 and the soft-to-hard touch screen blanking mechanism 127 are respectively connected to the gantry active connection.

The soft-to-hard lamination loading and unloading structure 1 suitable for touch screens, by setting the soft-to-hard touch screen feeding mechanism 101 and the soft-to-hard lamination gantry 2, the touch screen feeding adsorption component of the soft-to-hard touch screen feeding mechanism 127 can absorb Touch the screen to the processing position, and the gantry can support the movement of the soft-to-hard touch-screen feeding mechanism 101, and set up a soft-to-hard touch-screen unloading mechanism 127, which can simultaneously absorb the touch screen for unloading. The whole process does not require manual participation, reducing Product defect rate, improve feeding and bonding efficiency.

The loading module fixture 103 comprises a loading module fixing plate 106, a loading plate 108 and a loading module mounting part 107, the loading plate 108 and the loading module fixing plate 106 are in a fixed arrangement, and the loading module fixing plate 106 The rear end surface of the upper surface forms a slider for cooperating with the loading module mounting part 107. The feeding module mounting part 107 is formed with a guide rail, and the guide rail has a screw rod that is movably connected with the slider.

The loading module mounting part 107 is provided with a rail motor for pushing the slider.

One end of the loading module fixed plate 106 forms a bearing plate 108 for carrying the touch screen feeding and absorbing assembly. The bearing plate 108 is provided with a solenoid valve and a rotating motor 113 for rotating the touch screen feeding and absorbing assembly. The touch screen feeding and absorbing assembly It includes an insertion column extending upwards, the bearing plate 108 is formed with a bearing hole, the bearing plate 108 is fixedly arranged relative to the touch screen feeding and adsorption assembly, and the insertion column is movably connected with the rotating motor 113 through the bearing hole.

There is a gap between the touch screen feeding and absorbing component and the carrier plate 108 .

The touch screen feeding adsorption assembly has an upper assembly 116 and an adsorption piece 117, the upper assembly 116 and the adsorption piece 117 are fixedly arranged, the upper assembly 116 faces upward to form an insertion column, and the bottom of the adsorption piece 117 is formed with an adsorption surface, which absorbs the touch screen.

Specifically, the adsorption member 117 can be arranged in a press-fit manner with the laminating cage, and the optical adhesive and the touch screen are soft-to-hard laminated.

Specifically, the blanking module fixture 2014 includes a module connection bottom plate 118 for fixing the module connecting plate, a screw module for moving up and down, a motor for controlling the shaft coupling, and a blanking module fixture 105, the motor and one end of the coupling are fixedly arranged, the other end of the coupling is fixedly arranged with the screw module, and the module is connected to the bottom plate 118 to form a screw module.

Specifically, the blanking module fixing part 105 is formed with slide rails, and the slide rails are movably connected with the lead screw module.

Specifically, the blanking module fixture 105 includes a blanking adsorption assembly 104 and a solenoid valve for controlling the guiding cylinder, the guiding cylinder and the blanking adsorption assembly 104 are fixedly arranged, and the blanking adsorption assembly 104 faces downward to form a blanking adsorption surface, The blanking adsorption surface absorbs the touch screen after processing.

Specifically, one end of the blanking module fixing part 105 is formed with a slide block, and the gantry frame is formed with a transverse guide rail, and the slide block is movably connected with the transverse guide rail; the gantry frame includes a drag chain box and a drag chain, and the drag chain and the slide block are fixed , the drag chain and the gantry frame are arranged relatively fixedly.

Specifically, one end of the loading module fixing part 103 is formed with a loading slider 126 that is movably connected with the transverse guide rail.

The double mover linear module is adopted, and the 4 stations on both sides are respectively responsible for loading and unloading, and the upper and lower arms can be rotated. The loading manipulator is the loading arm and also the soft-to-hard lamination upper cavity. It uses a servo motor to connect the reducer 1403 with high-precision positioning function; the rotation of the unloading arm is controlled by the guide cylinder, which can realize 180° rotation. The feeding arm realizes fast and stable feeding, high-precision alignment during lamination, reduces product defect rate, and double-station improves feeding and laminating efficiency.

Each component in the soft-to-hard lamination loading and unloading structure 1 suitable for touch screens is electrically connected to the control part, and the control program does not belong to the content of the invention, so it will not be described.

The whole working process of the automatic bonding equipment in the present embodiment is:

1. The operator puts the tray full of touch screen on the loading fixture placement plate, the touch screen loading arm takes the material from the tray to the loading transfer suction plate, and then the touch screen flip mechanism takes the material to the intermediate transfer plate.

2. The loading arm picks up the tear film from the transfer plate and aligns it with the CCD to the transfer fixture carrier.

3. The optical glue is placed in its discharging mechanism, the manipulator takes the optical glue to the adsorption plate, and the feeding manipulator takes the optical glue from the adsorption plate to the lower cavity mesh plate for vacuuming.

4. The small ear feeding mechanism 9 reaches the material picking position, the film tearing mechanism takes the easy-to-tear film to the corner of the optical glue for tearing film detection and throws away the waste film, the upper cavity takes the touch screen from the transfer fixture platform and puts it on the optical glue in the lower cavity At the same time, take pictures to complete the fit.

5. The heavy-gauge tearing film manipulator takes the easy-to-tear sticker, and the unloading arm takes the pasted product to the tearing film position to complete the film tearing action. The CCD is aligned and placed on the transfer fixture platform to enter the hard-to-hard link.

6. The liquid crystal screen places the material tray, and the material tray is placed on the belt line.

7. The lifting component drives the material tray to the loading position, and the X and Y axes of material retrieving cooperate to move the product to the jig platform, and transport it to the tearing film position. The small ear feeding mechanism 9 reaches the material picking position, and the tearing film mechanism is easy to tear and paste. The tear film is sent to the positioning mechanism for correction.

8. The manipulator takes the LCD screen from the positioning mechanism to the lower chamber, the other manipulator takes the touch screen to the touch screen transplanting table, the upper chamber sucks it, and the upper and lower chambers are aligned by the CCD to the bonding position and vacuumed and bonded.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the protection of the present invention. within range.

Claims (10)

1. A bonding structure for liquid crystal screens and touch screens, for bonding liquid crystal screens and touch screens, characterized in that it includes a vacuum box assembly, a hard-to-hard assembly for correcting the placement of the liquid crystal screen and the touch screen Calibrate the camera assembly, a jig assembly accommodated in the vacuum box assembly and used to place a touch screen or a liquid crystal screen, a vertical drive mechanism for providing the opening and closing power of the vacuum box assembly, and a guide for guiding the A guide assembly for lifting or lowering the vacuum box assembly and an X-axis fine-tuning mechanism for fine-tuning the position on the vacuum box assembly; the vacuum box assembly includes a hard-to-hard bonding upper box assembly And hard-to-hard fit lower box components. 2. A bonding structure for a liquid crystal screen and a touch screen according to claim 1, wherein the hard-to-hard calibration camera assembly includes a touch screen calibration camera assembly for calibrating the position of the touch screen and a calibration camera assembly for calibrating the liquid crystal The LCD screen of the screen is calibrated to the camera assembly. 3. A bonding structure for a liquid crystal screen and a touch screen as claimed in claim 2, wherein the touch screen correction camera assembly includes a prism fixing plate for setting a prism, an upward-facing Arranged touch screen calibration camera; the LCD screen calibration camera assembly includes a directly downward LCD screen calibration camera for photographing the aligned LCD screen, a coaxial light source for directly irradiating the product, a fixed camera and a coaxial An upright fixed plate for the light source, a liquid crystal screen driving mechanism for moving the upright fixed plate. 4. A bonding structure for a liquid crystal screen and a touch screen as claimed in claim 3, wherein the jig assembly includes an upper jig mechanism and a lower jig mechanism, and the hard-to-hard lamination The box assembly is fixedly arranged with the upper jig mechanism, and the hard-to-hard fit lower box assembly is fixedly arranged with the lower jig mechanism. When the hard-to-hard fit upper box assembly and the hard When pressing the hard-fit lower box assembly, the upper jig mechanism and the lower jig mechanism form a sealed space; the upper jig mechanism has an adjustment block and a buffer block, when the upper jig mechanism and the lower jig mechanism When the lower jig mechanism fits together, it can be adjusted and buffered. 5. A bonding structure for a liquid crystal screen and a touch screen as claimed in claim 4, wherein the hard-to-hard bonding upper box assembly includes a hard-to-hard bonding upper box for driving The vertical drive mechanism for the hard-to-hard lamination upper box to move up and down, and the hard-to-hard lamination upper box mounting seat for fixing the hard-to-hard lamination upper box. 6. A bonding structure for a liquid crystal screen and a touch screen as claimed in claim 5, wherein the lower surface of the hard-to-hard bonding lower box mounting seat forms four vertically downward supporting shafts , the upper surface of the hard-to-hard fitting lower box is arranged with four linear bearings, and the linear bearings are arranged in flexible connection with the support shaft; the hard-to-hard fitting lower box mounting seat is relatively The hard-to-hard fitted lower box moves vertically up and down. 7. A bonding structure for a liquid crystal screen and a touch screen as claimed in claim 6, wherein the hard-to-hard bonding lower box assembly includes a hard-to-hard bonding lower box for bearing Put down the guide rail of the box assembly, and the hard-to-hard driving device for driving the hard-to-hard pasted lower box; the hard-to-hard driving device includes a screw rod and a hard-to-hard servo motor. 8. A bonding structure for a liquid crystal screen and a touch screen according to claim 7, wherein the hard-to-hard bonding lower box assembly further includes a The lifting cylinder under the body drives the hard-to-hard fitting lower box body to move up and down. 9 . The bonding structure for a liquid crystal screen and a touch screen according to claim 8 , wherein the vertical driving mechanism comprises a vertical servo motor and a vertical screw rod for transmission. 10 . 10. A bonding structure for a liquid crystal screen and a touch screen as claimed in claim 9, further comprising a connecting shaft and an upper vacuum cover, and a device for preventing Leak vacuum seal assembly.