CN112394842A - Full-lamination equipment and lamination process of electromagnetic capacitive touch screen - Google Patents
Full-lamination equipment and lamination process of electromagnetic capacitive touch screen Download PDFInfo
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- CN112394842A CN112394842A CN202011356681.7A CN202011356681A CN112394842A CN 112394842 A CN112394842 A CN 112394842A CN 202011356681 A CN202011356681 A CN 202011356681A CN 112394842 A CN112394842 A CN 112394842A
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/0412—Digitisers structurally integrated in a display
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B11/00—Work holders not covered by any preceding group in the subclass, e.g. magnetic work holders, vacuum work holders
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B11/00—Work holders not covered by any preceding group in the subclass, e.g. magnetic work holders, vacuum work holders
- B25B11/02—Assembly jigs
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/046—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by electromagnetic means
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2203/00—Indexing scheme relating to G06F3/00 - G06F3/048
- G06F2203/041—Indexing scheme relating to G06F3/041 - G06F3/045
- G06F2203/04103—Manufacturing, i.e. details related to manufacturing processes specially suited for touch sensitive devices
Abstract
The invention relates to the technical field of touch screen production, in particular to full-lamination equipment of an electromagnetic capacitive touch screen, which comprises a machine tool, a displacement mechanism, a station plate, a pressing mechanism, a lamination mechanism, an induction sheet and an inductor, wherein the middle position of the top of the machine tool is fixedly connected with the displacement mechanism, the station plate is fixedly arranged on the free end of the top of the displacement mechanism, and the lamination process of the full-lamination equipment of the electromagnetic capacitive touch screen comprises the following steps: step one, pretreatment; step two, rubberizing; step three, full lamination; step four, pressing, covering and defoaming; step five, UV curing; and step six, finished product detection, step seven, packaging and warehousing. The invention achieves the purposes of automatically and fully laminating the display screen and the touch screen and improving the yield, so that the OCA glue does not overflow or deviate after lamination, the reworking and scrapping of the OCA are directly and effectively reduced, the laminating efficiency is improved, the loss can be reduced, and the production cost is reduced.
Description
Technical Field
The invention relates to the technical field of touch screen production, in particular to full-lamination equipment and a lamination process of an electromagnetic capacitive touch screen.
Background
The basic principle of the electromagnetic induction touch screen is that the electromagnetic pen is a signal transmitting end and an antenna board is a signal receiving end, and when the electromagnetic pen is close to induction, magnetic flux changes, and position points are defined through operation. The electromagnetic touch panel has the advantages of high light transmittance, high resolution, sensitive response, Z-axis sensing capability, suitability for drawing, handwriting recognition and the like, and touch control without directly touching a screen. The precision of the electromagnetic induction pen, handwriting recognition and the like are very suitable for marking, annotating and recording in character gaps, which is a main reason for using the electromagnetic induction pen by an electronic reader, and the electromagnetic touch module is flexible and can be matched with a software display.
The full-lamination is that the display screen and the touch screen are completely pasted together in a seamless mode by using water glue or optical glue. The air between the screens has been cancelled to the full laminating technique, and this helps reducing the reflection of light between display panel and the glass, can let the screen look more penetrating, strengthens the display effect of screen. Although the advantage of full laminating is huge, the yields is relatively lower, because consumption, the scrapping of surperficial glass and even panel in the laminating in-process that the yields is not good can cause the rise of cost certainly, consequently is difficult to satisfy the production demand.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides full-laminating equipment of an electromagnetic capacitive touch screen and a laminating process thereof, which achieve the purposes of automatically and fully laminating a display screen and the touch screen and improving the yield, so that the phenomenon of glue overflow or deviation of OCA glue can not occur after lamination, rework and scrapping of OCA can be directly and effectively reduced, the laminating efficiency is improved, the loss can be reduced, and the production cost can be reduced.
(II) technical scheme
In order to realize the technical problem, the invention provides the following technical scheme: the utility model provides an electromagnetic capacitance touch-sensitive screen's equipment of laminating entirely, includes lathe, displacement mechanism, station board, presses and covers mechanism, laminating mechanism, response piece and inductor, the intermediate position and the displacement mechanism fixed connection at lathe top, station board fixed mounting is on the free end at displacement mechanism top, the profile modeling groove of cooperation touch-sensitive screen is seted up at the top of station board, press and cover the intermediate position at lathe top of mechanism fixed mounting, laminating mechanism fixed mounting is on the rear position at lathe top, and the intermediate position in station board top both sides is installed respectively to two response pieces, inductor fixed mounting is in laminating mechanism.
Further, the displacement mechanism comprises slide rails, slide blocks, bearing seats, a ball screw and a servo motor, wherein the two slide rails are installed at the top of the machine tool, the slide blocks are installed on the slide rails in a sliding mode, the top of each slide block is fixedly connected with the bottom of the station plate, the number of the bearing seats is two, and the two bearing seats are respectively and fixedly installed at the front position and the rear position of the top of the machine tool.
Furthermore, two ends of the ball screw are respectively connected with one side of the ball screw opposite to the bearing seats in a rotating mode, a nut on the ball screw is fixedly connected with the bottom of the station plate, the servo motor is fixedly installed on the machine tool, and the output end of the servo motor is in transmission connection with the ball screw.
Further, press and cover the mechanism and include sleeve, stopper, extension spring, movable rod, installation piece and press and cover the roller, telescopic quantity is two, and two telescopic bottoms are installed respectively on the intermediate position of lathe top both sides, stopper slidable mounting is in telescopic inside, the both ends of extension spring respectively with the bottom of stopper and the bottom fixed connection of sleeve inner wall.
Further, the bottom of movable rod and the top fixed connection of stopper, the top of movable rod extends to the top at sleeve top, the top of movable rod and the bottom fixed connection of installation piece, one side that two installation pieces are relative rotates with the both ends that press the cover roller respectively and is connected, the surface cover that presses the cover roller is equipped with protective rubber.
Further, laminating mechanism includes mounting bracket, guide, attaching plate, cylinder and vacuum chuck, mounting bracket fixed mounting is in the rear at lathe top, the both sides at mounting bracket inner wall top respectively with the top fixed connection of two guides, the bottom end and the lathe fixed connection of guide, the guide comprises guide bar and sliding sleeve.
Further, the both sides of attaching plate respectively with the free end fixed connection of the relative one side of two guides, cylinder fixed mounting is at the top of mounting bracket, the free end of cylinder is connected with the top transmission of attaching plate, vacuum chuck's quantity is five, and five vacuum chuck install respectively in the centre of attaching plate bottom and on the position all around.
Furthermore, the quantity of inductor is two, and two inductors are installed respectively in the both sides of rigging board bottom, and two inductors correspond with two response pieces respectively.
The laminating process of the full laminating equipment of the electromagnetic capacitive touch screen comprises the following steps of:
step one, pretreatment; step two, rubberizing; step three, full lamination; step four, pressing, covering and defoaming; step five, UV curing; step six, finished product detection, step seven, packaging and warehousing;
in the first step, the surfaces of the display screen and the touch screen are cleaned and dried, and then an electrostatic dust removal process is adopted for deep cleaning so as to ensure the clean state of the binding surface;
in the second step, OCA optical cement is adopted in the process, optical fiber alignment correction is firstly carried out on the OCA optical cement to enable the edge line of the OCA optical cement to be parallel to the edge line of the touch screen, then the OCA optical cement is attached to the touch screen, and the touch screen attached with the OCA optical cement is heated at the temperature of 30-50 ℃ for 18-30 s;
in the third step, transferring the touch screen after the rubberizing is finished to a contour groove on a station plate, enabling a laminating mechanism to act, grabbing a display screen through a vacuum sucker at the bottom of the laminating plate, enabling a displacement mechanism to operate and adjust the position of the station plate, stopping finishing alignment after a sensor senses a sensing piece, enabling an air cylinder to act to drive the display screen to descend to be laminated with the touch screen, transferring the laminated touch screen to a vacuum machine to remove bubbles, wherein the vacuum degree of the vacuum machine is less than 15Pa, the defoaming duration is 25-40 min, and the defoaming temperature is 45-65 ℃;
in the fourth step, the fully-laminated touch screen is transferred to a station plate, the station plate is driven to move by the action of a displacement mechanism, the pressing and covering defoaming operation is realized through a pressing and covering mechanism, and an acting force is applied by a pressing and covering roller to enable the display screen and the touch screen to be in a close fit state, so that gaps and bubbles are avoided;
in the fifth step, the touch screen after being pressed and defoamed is irradiated and cured by a UV lamp, the UV curing is divided into point curing and surface curing, the point curing condition is short time and low illumination, and the adhesive bonding strength after point curing is 30-40%;
the good product after point curing enters a UV curing furnace for surface curing, wherein the surface curing condition is long time and high illumination, the temperature of the curing furnace is set to be 50 ℃, and the time duration is 30 min;
in the sixth step, the product is detected by adopting automatic detection equipment, and the phenomena of damage, product bonding condition and poor bonding of the product in the incoming material or production process are detected;
after detection, open circuit, short circuit and capacitance are tested by scanning the conductivity of the ITO circuit, so that the reduction of the product yield caused by poor products is avoided, and the ITO function is ensured;
and seventhly, sticking a protective film on the qualified product, then putting the product into a finished product box, then putting the finished product box into a packaging box, packaging, sticking a certificate and warehousing.
(III) advantageous effects
The invention provides full-laminating equipment of an electromagnetic capacitive touch screen and a laminating process thereof, and the full-laminating equipment has the following beneficial effects:
1. according to the invention, the touch screen after being pasted with the glue is assembled into the contour groove, the displacement mechanism operates, and the induction of the inductor on the station plate is combined with the induction of the inductor, so that the display screen and the touch screen on the pasting mechanism can be determined to be in an alignment state, the accuracy of the pasting process is ensured, the position deviation phenomenon of the pasting surface is avoided, then the displacement mechanism acts and is tightly pasted through the pressing mechanism, and the gap and the bubbles of the pasting surface are eliminated, therefore, the purposes of automatically and fully pasting the display screen and the touch screen and improving the yield are achieved, the phenomenon of glue overflow or deviation of the OCA glue after being pasted is avoided, the reworking scrap of the OCA is directly and effectively reduced, the pasting efficiency is improved, the loss can be reduced, and the production cost is reduced.
2. According to the invention, due to the arrangement of the laminating mechanism, the display screen can be adsorbed and fixed through the vacuum chuck, the stability of the display screen is ensured, the display screen and the touch screen are laminated when the vacuum chuck is matched with the action of the cylinder, and the movement track of the laminating plate can be limited by combining the arrangement of the two guide pieces, so that the deviation and dislocation of the laminating plate in the laminating process are avoided, the success rate of laminating operation can be improved, and the laminating quality is ensured.
3. According to the invention, due to the arrangement of the pressing mechanism, the limiting block slides in the sleeve, meanwhile, the tension spring applies rural tension to the limiting block, the touch screen after the laminating and curing is carried by the station plate and moves forwards, at the moment, the outer surface of the pressing roller is in contact with the upper surface of the display screen and is pressed by the tension force of the tension spring, the station plate is matched with the displacement mechanism to realize displacement action, and meanwhile, the pressing roller is stressed to rotate and press the display screen, so that when the touch screen and the display panel are completely laminated, bubbles are prevented from being generated, the lamination is uniform, and the appearance quality of the touch screen is improved.
4. The full-laminating process provided by the invention can improve the working efficiency and reduce the cost, the stress between the touch screen and the display screen is uniform, the bubble rebound is not easy to occur, a special and high-volume equipment matching positioning module is not required to be manufactured, the jig and the equipment are greatly reduced, the market application is very wide, the risk of chip falling is avoided, and the laminating size deviation rate is reduced.
Drawings
FIG. 1 is a schematic front view of the structure of the present invention;
FIG. 2 is a schematic view of the displacement mechanism of the present invention;
FIG. 3 is a schematic structural view of the pressing mechanism of the present invention;
fig. 4 is a schematic bottom structure view of the attachment plate of the present invention.
In the figure: 1. a machine tool; 2. a displacement mechanism; 3. a station plate; 4. profiling grooves; 5. a pressing mechanism; 6. a fitting mechanism; 7. an induction sheet; 8. an inductor; 21. a slide rail; 22. a slider; 23. a bearing seat; 24. a ball screw; 25. a servo motor; 51. a sleeve; 52. a limiting block; 53. a tension spring; 54. a movable rod; 55. mounting blocks; 56. pressing and covering the roller; 61. a mounting frame; 62. a guide member; 63. attaching a plate; 64. a cylinder; 65. and (4) vacuum chuck.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-4, the present invention provides a technical solution: a full-laminating device of an electromagnetic capacitance touch screen comprises a machine tool 1, a displacement mechanism 2, a station plate 3, a pressing mechanism 5, a laminating mechanism 6, induction sheets 7 and an inductor 8, wherein the middle position of the top of the machine tool 1 is fixedly connected with the displacement mechanism 2, the station plate 3 is fixedly arranged on the free end of the top of the displacement mechanism 2, the top of the station plate 3 is provided with a contour groove 4 matched with the touch screen, the pressing mechanism 5 is fixedly arranged at the middle position of the top of the machine tool 1, the laminating mechanism 6 is fixedly arranged at the rear position of the top of the machine tool 1, the two induction sheets 7 are respectively arranged at the middle positions of two sides of the top of the station plate 3, the inductor 8 is fixedly arranged on the laminating mechanism 6, the touch screen after being pasted is assembled into the contour groove 4, the displacement mechanism runs, and the induction of the inductor 8 on the induction sheets on the station plate 3 is combined, so that a display screen and the touch screen on the laminating mechanism 6 can be determined, with this precision of guaranteeing laminating process, avoid the binding face position deviation phenomenon to appear, displacement mechanism 2 moves and covers mechanism 5 through pressing afterwards and realize closely laminating, eliminate the space and the bubble of binding face, consequently, reached and carried out the purpose of automatic full laminating and promotion yields to display screen and touch-sensitive screen, make OCA glue the phenomenon that can not appear overflowing gluing or off normal after the laminating, direct effectual reduction OCA's rework is scrapped, the laminating efficiency has not only been improved, simultaneously can the loss be reduced, and the production cost is reduced.
The covering mechanism 5 comprises two sleeves 51, limiting blocks 52, tension springs 53, movable rods 54, mounting blocks 55 and covering rollers 56, the number of the sleeves 51 is two, the bottoms of the two sleeves 51 are respectively mounted at the middle positions of the two sides of the top of the machine tool 1, the limiting blocks 52 are slidably mounted in the sleeves 51, the two ends of each tension spring 53 are respectively fixedly connected with the bottoms of the limiting blocks 52 and the bottom of the inner wall of each sleeve 51, the bottom end of each movable rod 54 is fixedly connected with the top of each limiting block 52, the top end of each movable rod 54 extends to the upper part of the top of each sleeve 51, the top end of each movable rod 54 is fixedly connected with the bottom of each mounting block 55, the opposite sides of the two mounting blocks 55 are respectively rotatably connected with the two ends of each covering roller 56, and protective rubber is sleeved on the outer surface of each covering roller 56, according to the invention, due to the arrangement of the covering mechanism 5, through the sliding of the limiting, the touch-sensitive screen after laminating solidification is accomplished bears and forward displacement by station board 3, press the surface of covering roller 56 and the upper surface contact of display screen this moment, utilize the pulling force of extension spring 53 to compress tightly, and station board 3 cooperation displacement mechanism 2 realizes the displacement action, press simultaneously and cover roller 56 atress rotation and press the cover to the display screen, thereby when making between touch-sensitive screen and the display panel laminate completely, the production of bubble has been avoided, make the laminating even, and then the appearance quality of touch-sensitive screen has been improved.
The attaching mechanism 6 comprises an installing frame 61, guide pieces 62, an attaching plate 63, air cylinders 64 and vacuum suction cups 65, the installing frame 61 is fixedly installed at the rear part of the top of the machine tool 1, two sides of the top of the inner wall of the installing frame 61 are fixedly connected with the top ends of the two guide pieces 62 respectively, the bottom ends of the guide pieces 62 are fixedly connected with the machine tool 1, each guide piece 62 comprises a guide rod and a sliding sleeve, two sides of the attaching plate 63 are fixedly connected with the free ends of the opposite sides of the two guide pieces 62 respectively, the air cylinders 64 are fixedly installed at the top of the installing frame 61, the free ends of the air cylinders 64 are in transmission connection with the top of the attaching plate 63, the number of the vacuum suction cups 65 is five, the five vacuum suction cups 65 are installed at the middle and the periphery of the bottom of the attaching plate 63 respectively, the number of the inductors 8 is two, the two inductors 8 are installed at, because laminating mechanism 6's setting, can adsorb fixedly to the display screen through vacuum chuck 65, guarantee the volume stability of display screen simultaneously, laminate between display screen and the touch-sensitive screen during cooperation cylinder 64's the action to combine the setting of two guides 62, can restrict the movement track of attaching plate 63, avoid attaching in-process attaching plate 63 to appear skew and dislocation phenomenon, can improve the success rate of laminating operation, guarantee the laminating quality.
The laminating process of the full laminating equipment of the electromagnetic capacitive touch screen comprises the following steps of:
step one, pretreatment; step two, rubberizing; step three, full lamination; step four, pressing, covering and defoaming; step five, UV curing; step six, finished product detection, step seven, packaging and warehousing;
in the first step, the surfaces of the display screen and the touch screen are cleaned and dried, and then an electrostatic dust removal process is adopted for deep cleaning so as to ensure the clean state of the binding surface;
in the second step, OCA optical cement is adopted in the process, optical fiber alignment correction is firstly carried out on the OCA optical cement to enable the edge line of the OCA optical cement to be parallel to the edge line of the touch screen, then the OCA optical cement is attached to the touch screen, and the touch screen attached with the OCA optical cement is heated at the temperature of 30-50 ℃ for 18-30 s;
in the third step, transferring the touch screen after the rubberizing is finished to a contour groove on a station plate, enabling a laminating mechanism to act, grabbing a display screen through a vacuum sucker at the bottom of the laminating plate, enabling a displacement mechanism to operate and adjust the position of the station plate, stopping finishing alignment after a sensor senses a sensing piece, enabling an air cylinder to act to drive the display screen to descend to be laminated with the touch screen, transferring the laminated touch screen to a vacuum machine to remove bubbles, wherein the vacuum degree of the vacuum machine is less than 15Pa, the defoaming duration is 25-40 min, and the defoaming temperature is 45-65 ℃;
in the fourth step, the fully-laminated touch screen is transferred to a station plate, the station plate is driven to move by the action of a displacement mechanism, the pressing and covering defoaming operation is realized through a pressing and covering mechanism, and an acting force is applied by a pressing and covering roller to enable the display screen and the touch screen to be in a close fit state, so that gaps and bubbles are avoided;
in the fifth step, the touch screen after being pressed and defoamed is irradiated and cured by a UV lamp, the UV curing is divided into point curing and surface curing, the point curing condition is short time and low illumination, and the adhesive bonding strength after point curing is 30-40%;
the good product after point curing enters a UV curing furnace for surface curing, wherein the surface curing condition is long time and high illumination, the temperature of the curing furnace is set to be 50 ℃, and the time duration is 30 min;
in the sixth step, the product is detected by adopting automatic detection equipment, and the phenomena of damage, product bonding condition and poor bonding of the product in the incoming material or production process are detected;
after detection, open circuit, short circuit and capacitance are tested by scanning the conductivity of the ITO circuit, so that the reduction of the product yield caused by poor products is avoided, and the ITO function is ensured;
and seventhly, sticking a protective film on the qualified product, then putting the product into a finished product box, then putting the finished product box into a packaging box, packaging, sticking a certificate and warehousing.
The full-laminating process provided by the invention can improve the working efficiency and reduce the cost, the stress between the touch screen and the display screen is uniform, the bubble rebound is not easy to occur, a special and high-volume equipment matching positioning module is not required to be manufactured, the jig and the equipment are greatly reduced, the market application is very wide, the risk of chip falling is avoided, and the laminating size deviation rate is reduced.
The invention has the beneficial effects that: according to the invention, the touch screen after adhesive pasting is assembled into the contour groove 4, the displacement mechanism operates, and the induction of the inductor 8 on the station plate 3 is combined, so that the display screen and the touch screen on the pasting mechanism 6 can be determined to be in an alignment state, the accuracy of the pasting process is ensured, the position deviation phenomenon of the pasting surface is avoided, then the displacement mechanism 2 acts and is tightly pasted through the pressing mechanism 5, and the gap and the bubbles of the pasting surface are eliminated, so that the purposes of automatically and fully pasting the display screen and the touch screen and improving the yield are achieved, the phenomenon of adhesive overflow or deviation of the OCA adhesive after pasting is avoided, the reworking and scrapping of the OCA are directly and effectively reduced, the pasting efficiency is improved, the loss can be reduced, and the production cost is reduced.
The control mode of the invention is automatically controlled by the controller, the control circuit of the controller can be realized by simple programming of a person skilled in the art, the supply of the power supply also belongs to the common knowledge in the field, and the invention is mainly used for protecting mechanical devices, so the control mode and the circuit connection are not explained in detail in the invention.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (9)
1. The utility model provides an electromagnetic capacitance touch-sensitive screen's equipment of laminating entirely, includes lathe (1), displacement mechanism (2), station board (3), presses and covers mechanism (5), laminating mechanism (6), response piece (7) and inductor (8), its characterized in that: the intermediate position and the displacement mechanism (2) fixed connection at lathe (1) top, station board (3) fixed mounting is on the free end at displacement mechanism (2) top, profile modeling groove (4) of cooperation touch-sensitive screen are seted up at the top of station board (3), press the intermediate position of covering mechanism (5) fixed mounting at lathe (1) top, laminating mechanism (6) fixed mounting is on the rear position at lathe (1) top, and the intermediate position in station board (3) top both sides is installed respectively in two response pieces (7), inductor (8) fixed mounting is on laminating mechanism (6).
2. The full-lamination device of the electromagnetic capacitive touch screen according to claim 1, wherein: displacement mechanism (2) include slide rail (21), slider (22), bearing frame (23), ball (24) and servo motor (25), and the top at lathe (1) is all installed in two slide rails (21), slider (22) slidable mounting is on slide rail (21), the top of slider (22) and the bottom fixed connection of station board (3), the quantity of bearing frame (23) is two, and two bearing frames (23) are fixed mounting respectively on the front and back position at lathe (1) top.
3. The full-lamination device of the electromagnetic capacitive touch screen according to claim 2, wherein: the two ends of the ball screw (24) are respectively connected with one side of the ball screw, which is opposite to the bearing seat (23), in a rotating manner, a nut on the ball screw (24) is fixedly connected with the bottom of the station plate (3), the servo motor (25) is fixedly installed on the machine tool (1), and the output end of the servo motor (25) is in transmission connection with the ball screw (24).
4. The full-lamination device of the electromagnetic capacitive touch screen according to claim 1, wherein: press and cover mechanism (5) and include sleeve (51), stopper (52), extension spring (53), movable rod (54), installation piece (55) and press and cover roller (56), the quantity of sleeve (51) is two, and the bottom of two sleeve (51) is installed respectively on the intermediate position of lathe (1) top both sides, stopper (52) slidable mounting is in the inside of sleeve (51), the both ends of extension spring (53) respectively with the bottom of stopper (52) and the bottom fixed connection of sleeve (51) inner wall.
5. The full-lamination device of the electromagnetic capacitive touch screen according to claim 4, wherein: the bottom of movable rod (54) and the top fixed connection of stopper (52), the top of movable rod (54) extends to the top at sleeve (51) top, the top of movable rod (54) and the bottom fixed connection of installation piece (55), two installation piece (55) relative one side rotate with the both ends that cover roller (56) respectively and be connected, the surface cover that covers roller (56) is equipped with protective rubber to the pressure.
6. The full-lamination device of the electromagnetic capacitive touch screen according to claim 5, wherein: laminating mechanism (6) include mounting bracket (61), guide (62), laminating board (63), cylinder (64) and vacuum chuck (65), mounting bracket (61) fixed mounting is in the rear at lathe (1) top, the both sides at mounting bracket (61) inner wall top respectively with the top fixed connection of two guide (62), the bottom end and lathe (1) fixed connection of guide (62), guide (62) comprise guide bar and sliding sleeve.
7. The full-lamination device of the electromagnetic capacitive touch screen according to claim 5, wherein: the both sides of attaching plate (63) respectively with the free end fixed connection of the relative one side of two guide (62), cylinder (64) fixed mounting is at the top of mounting bracket (61), the free end of cylinder (64) is connected with the top transmission of attaching plate (63), the quantity of vacuum chuck (65) is five, and five vacuum chuck (65) are installed respectively in the centre of attaching plate (63) bottom and on the position all around.
8. The full-lamination device of the electromagnetic capacitive touch screen according to claim 1, wherein: the quantity of inductor (8) is two, and two inductors (8) are installed respectively in the both sides of attaching plate (63) bottom, and two inductors (8) are corresponding with two response pieces (7) respectively.
9. The laminating process of the full laminating equipment of the electromagnetic capacitive touch screen is characterized by comprising the following steps of:
step one, pretreatment; step two, rubberizing; step three, full lamination; step four, pressing, covering and defoaming; step five, UV curing; step six, finished product detection, step seven, packaging and warehousing;
in the first step, the surfaces of the display screen and the touch screen are cleaned and dried, and then an electrostatic dust removal process is adopted for deep cleaning so as to ensure the clean state of the binding surface;
in the second step, OCA optical cement is adopted in the process, optical fiber alignment correction is firstly carried out on the OCA optical cement to enable the edge line of the OCA optical cement to be parallel to the edge line of the touch screen, then the OCA optical cement is attached to the touch screen, and the touch screen attached with the OCA optical cement is heated at the temperature of 30-50 ℃ for 18-30 s;
in the third step, transferring the touch screen after the rubberizing is finished to a contour groove on a station plate, enabling a laminating mechanism to act, grabbing a display screen through a vacuum sucker at the bottom of the laminating plate, enabling a displacement mechanism to operate and adjust the position of the station plate, stopping finishing alignment after a sensor senses a sensing piece, enabling an air cylinder to act to drive the display screen to descend to be laminated with the touch screen, transferring the laminated touch screen to a vacuum machine to remove bubbles, wherein the vacuum degree of the vacuum machine is less than 15Pa, the defoaming duration is 25-40 min, and the defoaming temperature is 45-65 ℃;
in the fourth step, the fully-laminated touch screen is transferred to a station plate, the station plate is driven to move by the action of a displacement mechanism, the pressing and covering defoaming operation is realized through a pressing and covering mechanism, and an acting force is applied by a pressing and covering roller to enable the display screen and the touch screen to be in a close fit state, so that gaps and bubbles are avoided;
in the fifth step, the touch screen after being pressed and defoamed is irradiated and cured by a UV lamp, the UV curing is divided into point curing and surface curing, the point curing condition is short time and low illumination, and the adhesive bonding strength after point curing is 30-40%;
the good product after point curing enters a UV curing furnace for surface curing, wherein the surface curing condition is long time and high illumination, the temperature of the curing furnace is set to be 50 ℃, and the time duration is 30 min;
in the sixth step, the product is detected by adopting automatic detection equipment, and the phenomena of damage, product bonding condition and poor bonding of the product in the incoming material or production process are detected;
after detection, open circuit, short circuit and capacitance are tested by scanning the conductivity of the ITO circuit, so that the reduction of the product yield caused by poor products is avoided, and the ITO function is ensured;
and seventhly, sticking a protective film on the qualified product, then putting the product into a finished product box, then putting the finished product box into a packaging box, packaging, sticking a certificate and warehousing.
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| CN112394842B (en) | 2023-09-29 |
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