CN115838571A - Vacuum adhesive film pasting device and method for curved surface touch control panel - Google Patents
Vacuum adhesive film pasting device and method for curved surface touch control panel Download PDFInfo
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- CN115838571A CN115838571A CN202211303681.XA CN202211303681A CN115838571A CN 115838571 A CN115838571 A CN 115838571A CN 202211303681 A CN202211303681 A CN 202211303681A CN 115838571 A CN115838571 A CN 115838571A
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- 239000002313 adhesive film Substances 0.000 title claims abstract description 19
- 238000003825 pressing Methods 0.000 claims abstract description 120
- 230000007246 mechanism Effects 0.000 claims abstract description 111
- 230000007306 turnover Effects 0.000 claims abstract description 16
- 239000000741 silica gel Substances 0.000 claims description 92
- 229910002027 silica gel Inorganic materials 0.000 claims description 92
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 89
- 239000012528 membrane Substances 0.000 claims description 66
- 230000006698 induction Effects 0.000 claims description 39
- 230000008569 process Effects 0.000 claims description 34
- 238000001514 detection method Methods 0.000 claims description 30
- 238000007789 sealing Methods 0.000 claims description 27
- 238000001179 sorption measurement Methods 0.000 claims description 21
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- 238000013461 design Methods 0.000 abstract description 6
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- 238000005086 pumping Methods 0.000 description 6
- 230000037303 wrinkles Effects 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 5
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- 229910052751 metal Inorganic materials 0.000 description 2
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Abstract
The invention discloses a vacuum adhesive film pasting device and method for a curved surface touch control panel, and the device comprises a rack, a film pasting device, a vacuum system and a man-machine operation control system, wherein the film pasting device is installed on the rack, the vacuum system is connected with the film pasting device, and the man-machine operation control system is installed on the front side of the rack and is in signal connection with the film pasting device and the vacuum system; the film pasting device comprises a turnover pressing mechanism, a pasting station sealed cavity, a touch panel mounting fixture and a jacking mechanism, wherein the touch panel mounting fixture is connected with the jacking mechanism, the touch panel mounting fixture and the jacking mechanism are mounted in the pasting station sealed cavity, and the turnover pressing mechanism is in pressing seal with the pasting station sealed cavity. The invention simplifies the structure design, thereby reducing the equipment development cost, improving the operation efficiency and having wider application prospect.
Description
Technical Field
The invention relates to the technical field of vacuum film pasting, in particular to a vacuum adhesive film pasting device and method for a curved surface touch control panel.
Background
With the improvement of modern manufacturing and material technologies, products such as automobiles, intelligent household appliances and mobile terminals use a large number of touch panels with three-dimensional curved surface modeling as human-computer interaction interfaces to improve the attractiveness and the intelligence level of the products, and meanwhile, the high-end intelligent products also provide higher and higher challenges for the manufacturing technology. The touch function of the curved touch panel is actually provided by a light and thin sensing touch membrane, the sensing touch membrane needs to be adhered to a specified position on the inner side surface of the curved touch panel, a user can generate a specific input electric signal when touching the surface of the curved touch panel on a specified area by using a touch tool such as a finger and the like on the outer side surface of the curved touch panel, and finally, the back end signal processing module realizes a required corresponding control function. The touch panel with the sensing touch diaphragm needs to be designed into a specific three-dimensional curved surface according to the overall appearance requirement of a product, the sensing touch diaphragm needs to strictly manage and control the pasting position and the pasting quality when being pasted, otherwise, the touch sensing function is poor, and therefore the overall performance of an intelligent product is affected.
Aiming at the film pasting process, the following technical problems mainly exist at present:
1) Due to the design requirements of products, touch modules are often compact in layout and multiple in integrated functions, so that the film pasting space of a touch panel is often very narrow, an induction touch film with strong gum is difficult to paste manually, the manual pasting efficiency is low, and the product qualification rate is also low;
2) The induction touch membrane is a light and thin plastic film full of induction contacts, wrinkles are easily generated due to the fact that the touch panel is of a three-dimensional curved surface structure in the pasting process, and accordingly quality is poor and even products are scrapped, the induction touch membrane belongs to a high-technology value-added component, and scrapping cost is high;
3) The air bubbles are easily sealed in the sticking area of the touch film sheet in the sticking process of the touch film sheet, the back glue with strong viscosity is difficult to discharge, bad touch functions can be caused due to the fact that the air bubbles are changed and expanded in the environment of the outside air temperature in the using process of products, and the products are hidden with great quality troubles.
Currently, with the continuous improvement of the intelligent level of various electronic products, the touch technology is more and more widely applied, and has a wide development prospect. Aiming at the technical difficulty of the pasting process of the induction touch membrane with touch induction, the pasting technology of realizing the induction touch membrane on the three-dimensional curved surface rapidly and accurately without wrinkles and bubbles becomes an urgent technical problem to be solved.
Disclosure of Invention
The invention provides a vacuum adhesive film pasting method and device for a curved surface touch control panel, which can be used for quickly and accurately pasting the film without wrinkles and bubble closure, and aims to solve the technical problems that when an induction touch film is pasted on the inner side of a three-dimensional touch panel, wrinkles and bubbles are easy to generate, manual operation is difficult due to narrow space, and the like, so that the pasting position precision is difficult to ensure, the efficiency is low, the product scrapping cost is high, and the like.
The technical scheme adopted by the invention for solving the technical problem is as follows:
a vacuum adhesive film pasting device for a curved touch control panel comprises a rack, a film pasting device, a vacuum system and a man-machine operation control system, wherein the film pasting device is installed on the rack, the vacuum system is connected with the film pasting device, and the man-machine operation control system is installed on the front side of the rack and is in signal connection with the film pasting device and the vacuum system; the film pasting device comprises a turnover pressing mechanism, a pasting station closed cavity, a touch panel mounting fixture and a jacking mechanism, wherein the touch panel mounting fixture is connected with the jacking mechanism, the touch panel mounting fixture and the jacking mechanism are mounted in the pasting station closed cavity, and the turnover pressing mechanism is in press fit sealing with the pasting station closed cavity.
Further, the overturning and pressing mechanism comprises a pressing proximity switch sensor, an overturning in-place detection proximity switch, a mounting seat, a detection block, a bush fixing seat, an operating handle, a cover plate, a rotating shaft, a blocking and stopping foolproof cylinder and a silica gel pressing block pasting mechanism; the silica gel pressing block pasting mechanism is arranged on the inner side of the cover plate; the cover plate is mounted on the mounting seat through a turning rotating shaft, the stop and fool-proof cylinder and the turning-up in-place detection proximity switch are mounted on the mounting seat, and the mounting seat is arranged on the rack; the pressing proximity switch sensor is arranged on the side edge of the film sticking device, the detection block, the bush fixing seat and the operating handle are respectively arranged on the cover plate, and the detection block corresponds to the pressing proximity switch sensor in position; the cover plate is characterized in that a piston rod of the stop and fool-proof air cylinder is connected with a stop and fool-proof air cylinder connecting bolt shaft, a stop block is arranged on the cover plate, the stop and fool-proof air cylinder connecting bolt shaft is matched with the stop block, misoperation is prevented from occurring and the cover plate is turned over, and a vacuum pipe connector I is arranged on the cover plate and is connected with a vacuum system through the vacuum pipe connector I.
The turnover pressing mechanism is a manually-operated cover plate mechanism which has a turnover function and can realize a foolproof function at a pressing position and a turning-up position, and the silica gel pressing block mechanism is arranged on the cover plate mechanism; when the cover plate is turned to a pressing position, the pressing position of the cover plate is detected and judged by a proximity switch arranged on the side edge of the film sticking device, the proximity switch transmits a detection signal to a PLC control system to drive piston rods of locking cylinders arranged on two sides of the film sticking device to extend out, the piston rods are connected with locking bolts, and the bolts are inserted into a lining fixing seat arranged on the side edge of the cover plate so as to lock the cover plate; when the cover plate is turned to the turning-up position, the cover plate is detected in place by a proximity switch arranged at the tail position, the cover plate transmits a detection signal to a PLC control system to drive the piston rod of the stop-stop foolproof cylinder to extend out, and the cover plate is prevented from being turned over by misoperation; in addition, the stop and fool-proof cylinder piston rod is connected with the limiting rod, and the limiting rod is nested in the oil-free bushing to ensure the radial rigidity of the limiting rod, so that the service life of the mechanism can be prolonged.
The stop fool-proofing cylinder is a fool-proofing mechanism arranged on one side of the mounting base of the overturning and pressing mechanism, a cylinder piston rod is connected with a plug pin shaft, the plug pin shaft is nested in an oilless bush fixing seat, and when the plug pin shaft extends out, the overturning and pressing mechanism can be prevented from being overturned mistakenly to achieve fool-proofing of the mechanism; the structural rigidity of the stop mechanism of the cylinder fool-proof mechanism is ensured by the bushing.
Furthermore, the pasting station closed cavity is formed by surrounding four sealing plates arranged on a rack panel of the rack, and the pasting station closed cavity and the cover plate of the overturning pressing mechanism are pressed and sealed by sealing rubber rings. The sealing rubber ring is embedded in the rectangular groove of the binding surface at the top of the box body of the film sticking device and used for forming a sealing element in a full-sealing space with the box body after the cover plate is pressed, and the sealing rubber ring has the characteristics of strong elasticity, good toughness and good air tightness. The top surface of the closed cavity of the pasting station is the overturning pressing mechanism, the overturning pressing mechanism adopts a sealing rubber ring to perform pressing sealing between the cover plate and the cavity, a vacuum system performs vacuumizing after the cavity is subjected to pressing sealing, the sensing touch membrane and the curved surface touch panel are laminated in the closed space of the pasting station, and cables and air pipes in the closed space of the pasting station and the connection of the outer part of the space adopt a sealing processing mode.
Furthermore, the locking air cylinders are arranged on two sides of the film sticking device, a piston rod of each locking air cylinder is connected with one locking bolt, and the bolts are inserted and fixed into the lining fixing seats on the cover plates to lock the cover plates. The locking air cylinder is a compact air cylinder with extension and retraction state signal feedback, a piston rod of the locking air cylinder is connected with a locking bolt, and the bolt locks the cover plate by inserting into a lining fixing seat fixed on the cover plate; the radial stiffness of the dead bolt locking mechanism is ensured by two self-lubricating sleeve mounts mounted on the locking cylinder side and the cover plate side.
Further, the touch panel mounting fixture comprises a touch panel fixture mounting bracket, a touch panel fixture, a curved touch panel, an object detection sensor, a positioning pressure head and a positioning cylinder; the curved surface touch panel is arranged in the touch panel clamp, the object detection sensor is arranged at the side of the touch panel clamp, the positioning air cylinder is arranged at the front end of the touch panel clamp, and the positioning pressure head is used for applying a clamping force to one end of the touch panel so as to enable the other end of the curved surface touch panel to be tightly attached to the touch panel clamp, so that the touch panel is accurately positioned to ensure the consistency of the pasting position of the sensing touch diaphragm on the touch panel.
The touch panel mounting fixture is a clamping mechanism for mounting and positioning the curved surface touch panel, when the curved surface touch panel is placed in the fixture, an object detection sensor mounted at the side of the fixture senses that the curved surface touch panel is placed in place, and the sensor transmits a sensing signal to a PLC control system to drive a positioning cylinder at the front end of the fixture to slightly apply a certain clamping force to one end of the touch panel so that the other end of the touch panel is tightly attached to the fixture;
further, climbing mechanism includes climbing mechanism mounting panel, jacking cylinder installing support and jacking cylinder, jacking cylinder installing support sets up on climbing mechanism mounting panel, the jacking cylinder sets up on jacking cylinder installing support, jacking cylinder and touch panel sectional fixture fixed connection. The jacking cylinder is a driving component which is used for jacking the touch panel clamp so as to enable the curved surface touch panel to be in contact with the induction touch diaphragm in the lifting process, then the silica gel pressing block pasting mechanism makes a certain angle of rotation and turning motion by taking the initial contact side line of the touch diaphragm and the curved surface touch panel as an axis, and the induction touch diaphragm is gradually pasted with the curved surface touch panel by a simulation soft cylindrical silica gel rolling and pasting method; the jacking cylinder has the function of outputting signals of the sensor at the extending position and the retracting position, is driven by a pair of high-rigidity linear guide rails to do linear motion, and can ensure the stability of the linear ascending motion of the touch panel clamp in the motion process, thereby ensuring the precision of the sticking position and the consistency of products;
further, the silica gel pressing block pasting mechanism comprises a sliding guide block, a sliding shaft, a vacuum air pipe joint II, a rotating shaft sleeve fixing seat, a rotating shaft, a vacuum air pipe joint III, a reset spring, a spring guide shaft, a sliding guide shaft sleeve, a silica gel pressing block connecting block, a silica gel positioning block, a silica gel pressing block, a guide positioning needle and an induction touch membrane; the induction touch diaphragm is attached to the silica gel pressing block; silica gel briquetting connecting block one side is equipped with a pair of pivot to install on pivot axle sleeve fixing base through the pivot, silica gel briquetting connecting block opposite side is equipped with a pair of slip axle, and installs on the slip guide piece through and the slip axle, pivot axle sleeve fixing base is provided with a pair of slip guide axle and reset spring to install on the apron through slip guide axle and reset spring, make the silica gel briquetting can wind the pivot is made and is rotated and is followed the straight-line motion of making of pivot axle sleeve fixing base, and then accomplish the process of pasting of response touch diaphragm.
The guide positioning needles are two telescopic guide needles arranged on the silica gel pressing block and are used for accurately positioning the adsorption position of the induction touch membrane; the sensing touch membrane is provided with a round hole and an elliptical hole at corresponding positioning positions, the guiding and positioning needle is in an extending state before being pasted, and when the sensing membrane is pressed and pasted with the curved touch panel, the guiding and positioning needle can retract, so that the complete pasting of the sensing membrane cannot be influenced; the flexible function of direction location needle is by installing location needle reset spring in the silica gel positioning piece connecting block realizes, direction location needle radial stiffness by installing oil-free bush in the connecting block guarantees.
The diameter of 1mm arranged on the silica gel pressing block is fully distributed with the vacuum suction communicating small holes of the whole pressing block at certain intervals to form a porous vacuum adsorption surface, the vacuum suction communicating small holes are in butt joint with the air holes formed in the silica gel block connecting block, the connecting block is connected with two air pipe connectors, the air pipe connectors are connected with a vacuum generator system, and the vacuum generator can be automatically started under the control of an equipment external starting button and a PLC control system, so that the induction touch membrane which is positioned and attached to the silica gel pressing block is subjected to vacuum adsorption, and the induction membrane is prevented from falling off or displacing in the process of being attached to the touch panel; in addition, the whole briquetting of vacuum suction UNICOM aperture full cloth can with touch diaphragm levels stable absorption again on the adsorption plane, and then guarantee not take place quality defects such as fold and bubble closure among the pasting process.
The silica gel pressing block is a soft silica gel block which is made of specific materials in proportion, the outline of the soft silica gel block is matched with that of the touch membrane, and the soft silica gel pressing block has strong elasticity and toughness and is a material required by a typical film pasting process; the silica gel piece bonds in aluminium system on the silica gel locating piece, the silica gel locating piece with the connecting block passes through screw and locating pin fixed connection, the silica gel briquetting is guaranteed the key instrument of the bubble is crowded to response touch diaphragm and curved surface touch panel pressfitting in-process.
Further, the vacuum system comprises a vacuum tank, a vacuum pump, a filter, a one-way valve, a vacuum control valve and a vacuum pressure gauge; the vacuum pump with be connected with on the trachea between the vacuum tank the check valve, the vacuum control valve connect in the vacuum tank with paste on the trachea between the station sealed cavity, an interface of vacuum control valve is connected with the atmosphere through the filter, the vacuum pressure gauge is connected paste on the station sealed cavity. The vacuum system is a closed-loop control system which consists of a vacuum pump, a vacuum tank, a one-way valve, a vacuum control valve, a connecting pipeline and a vacuum pressure gauge with signal feedback and can quickly discharge the air in the closed space of the pasting station to form a certain vacuum degree, and the vacuum system can be used for realizing the quick vacuum pumping method; the starting and stopping of the vacuum pump are automatically controlled by a feedback signal of the vacuum pressure gauge through transmitting the feedback signal to a PLC control system, the vacuum tank is an intermediate device for quickly vacuumizing, air in the closed space of the pasting station can be quickly pumped into the vacuum tank firstly, so that the closed space can quickly reach the required vacuum degree, and then the vacuum pump pumps out the air in the vacuum tank in the process of operation at the pasting station, so that the vacuumizing time is saved; the check valve can prevent air from reversely entering the vacuum tank from the gap of the vacuum pump during the period of stopping the vacuum pump, so that the vacuum pump is prevented from being started frequently to extract air, and electric energy is saved; the vacuum control valve is a switch switching valve for opening and releasing the vacuum negative pressure of the closed space of the pasting station, when the vacuum negative pressure of the control valve is opened, the air in the closed space of the pasting station is pumped out by the vacuum pump, when the vacuum negative pressure of the control valve is released, the closed space of the pasting station is communicated with the atmosphere, namely the vacuum negative pressure state is released, and the overturning pressing mechanism can be opened.
Furthermore, the man-machine operation control system comprises a starting button, an emergency stop switch, a system on-off button, an HMI touch control screen and a PLC control system, and the PLC control system receives input signals and realizes automatic process control through an internal logic control program.
The silica gel pressing block pasting mechanism is a pasting mechanism which adsorbs the induction touch diaphragm to rotate and turn over at a certain angle by taking an initial contact side line of the touch diaphragm and the curved surface touch panel as an axis in the process that the jacking cylinder loads the curved surface touch panel to do jacking motion, the touch diaphragm is adsorbed on the silica gel pressing block, one side of the contact side line of the silica gel pressing block connecting block is provided with a pair of rotating shafts, the other corresponding side of the contact side line of the silica gel pressing block connecting block is provided with a pair of sliding shafts, and a rotating shaft sleeve fixing seat is provided with a pair of sliding guide shafts and a reset spring; the sticking mechanism rotates around the rotating shaft at a certain angle and linearly compresses the fixed seat of the shaft sleeve of the rotating shaft at a certain distance in the jacking motion process of the jacking cylinder, so that the sticking process of the touch membrane is completed;
the simulated soft cylindrical silica gel rolling and laminating method is characterized in that the silica gel pressing block rotates around the rotating shaft at a certain angle and linearly compresses the rotating shaft sleeve fixing seat at a certain distance to form a compound motion, and a similar cylindrical roller shaft is simulated to roll and laminate from one side edge of the touch membrane to the other side, so that the laminating method is a progressive line laminating method, the quality defects that air bubbles are sealed in a glue surface in the laminating process and the like of the touch membrane can be prevented, and the laminating quality is improved; by adopting the laminating method, the rolling mechanism can be omitted, and one air cylinder can be used as a power source to simulate the same laminating action, so that the structural design is simplified, the equipment development cost is reduced, and the operation efficiency is improved.
A vacuum adhesive film pasting method for a curved surface touch control panel comprises the following steps:
1) The induction touch membrane is arranged on a silica gel pressing block with a porous vacuum adsorption surface through a guide positioning needle to carry out accurate positioning and vacuum adsorption fixation;
2) After the curved-surface touch panel is mounted on the touch panel mounting clamp in place through induction of the object detection sensor, a clamping force is applied to one end of the curved-surface touch panel by the positioning cylinder to enable the other end of the curved-surface touch panel to be tightly attached to the clamp, so that the curved-surface touch panel is accurately positioned to ensure the consistency of the pasting positions of the induction touch diaphragms on the curved-surface touch panel;
3) The method comprises the following steps that a cover plate of a turnover pressing mechanism is turned downwards, a sealing rubber ring is pressed and locked by locking cylinders arranged on two side edges of a film sticking device, a vacuum system connected with the film sticking device pumps air in a closed space of a sticking station through a quick vacuumizing method after the turnover pressing mechanism is locked, after a preset vacuum degree is reached, a touch panel mounting fixture is driven by a jacking cylinder to move upwards, a curved surface touch panel rises and is in contact with an induction touch membrane, the jacking cylinder continues to rise, a silica gel pressing block sticking mechanism rotates and turns around by taking an initial contact side line of the induction touch membrane and the curved surface touch panel as an axis, and the induction touch membrane is gradually stuck with the curved surface touch panel through a simulation soft cylindrical silica gel rolling and sticking method;
4) After the jacking cylinder reaches jacking vertex position pressure maintaining, the vacuum adsorption force is relieved on the porous vacuum adsorption surface of the silica gel pressing block, the jacking cylinder retreats to the original position, the locking cylinder is unlocked, the vacuum system is used for relieving vacuum negative pressure of a closed cavity of the pasting station, the cover plate of the overturning pressing mechanism is opened to the stopping position, the proximity switch installed at the stopping position detects that the rear baffle of the cover plate of the overturning pressing mechanism stops and prevents the idle cylinder from extending out, the positioning cylinder extends out and relieves the clamping force on the curved surface touch panel, and finally the curved surface touch control panel which is pasted completely is taken out to complete the pasting operation.
The technical conception of the invention is as follows: the touch film and the curved touch panel are simulated to perform rolling lamination from one side edge of the touch film to the other side of the touch film by simulating a soft cylindrical silica gel rolling lamination method and a rapid vacuum pumping method under a vacuum environment with a certain vacuum degree, the lamination of the lamination method is a progressive line lamination method, and quality defects that air bubbles are sealed in a glue surface in the wrinkling and lamination processes of the touch film and the like can be prevented, so that the lamination quality is improved. The process has the following characteristics: 1) The induction touch membrane is a light and thin plastic film full of induction contacts, wrinkles are easily generated due to the fact that the touch panel is of a three-dimensional curved surface structure in the pasting process, so that poor quality and even product scrapping can be caused, and the induction touch membrane is pasted by using a customized silica gel pressing block in a vacuum environment with a certain vacuum degree, so that the operation efficiency and the pasting quality can be improved; 2) The laminating method simulates the action of rolling and laminating a similar cylindrical roller shaft from one side edge of the touch membrane to the other side, and the laminating of the laminating method is a progressive line laminating method, so that the quality defects that the wrinkles of the touch membrane and bubbles are sealed in the adhesive surface in the laminating process can be prevented, and the laminating quality is improved; 3) According to the rapid vacuum pumping method, air in the closed space of the pasting station can be rapidly pumped into the vacuum tank firstly, so that the vacuum degree in the closed space can rapidly reach the required vacuum degree, the operation efficiency of the device can be improved, in addition, the use of the one-way valve can avoid the frequent starting of a vacuum pump, and the energy is saved; 4) By adopting the laminating method, the traditional rolling film laminating mechanism can be omitted, and one air cylinder can be used as a power source to simulate the same laminating action, so that the structural design is simplified, the equipment development cost is reduced, and the operation efficiency is improved.
The invention has the following beneficial effects:
1) The induction touch membrane and the curved touch panel are adhered by using the customized silica gel pressing block in a vacuum environment with a certain vacuum degree, so that bubbles can be prevented from being easily sealed in a touch membrane adhering area in the adhering process, the adhering quality is improved, and the touch function failure risk caused by bubble sealing is reduced;
2) The progressive line laminating method is carried out by using a simulated soft cylindrical silica gel rolling laminating method, so that quality defects that the touch membrane is wrinkled and bubbles are sealed in a glue surface in the laminating process and the like can be prevented, and the laminating quality is improved;
3) By using the rapid vacuum pumping method and the one-way valve, air in the closed space of the pasting station can be rapidly pumped into the vacuum tank so as to rapidly reach the required vacuum degree in the closed space, so that the operation efficiency of the device can be improved, and in addition, the one-way valve can avoid frequent starting of a vacuum pump and save energy;
4) By adopting the laminating method, the traditional rolling film laminating mechanism can be omitted, and one air cylinder can be used as a power source to simulate the same laminating action, so that the structural design is simplified, the equipment development cost is reduced, the operation efficiency is improved, and the laminating method has a wide application prospect.
Drawings
FIG. 1 is a flow chart of a method for vacuum adhesive lamination of a curved touch control panel;
FIG. 2 is a first schematic view of a vacuum adhesive film-sticking device for a curved touch control panel;
in fig. 2: 1-a frame; 2, a film pasting device; 3-vacuum tank; 4-a vacuum pump; 5-a silica gel pressing block pasting mechanism; 6-touch panel mounting fixture and drive mechanism; 7-system on-off button; 8-emergency stop switch; 9-HMI touch control screen; 10-start button;
FIG. 3 is a schematic view of a second vacuum adhesive film-sticking device for a curved touch control panel;
in fig. 3: 11-a filter; 12-an air pipe is connected between the vacuum control valve and the vacuum tank; 13-a gas pipe is connected between the vacuum tank and the vacuum pump on the tank body side; 14-a one-way valve; 15-the pump body side between the vacuum tank and the vacuum pump is connected with an air pipe; 16-a vacuum control valve; 17-a vacuum pressure gauge 18-a pasting station closed space is connected with an air pipe;
FIG. 4 is a first schematic view of a film sticking device;
in fig. 4: 20-a rack panel; 21-closing plate; 22-locking cylinder; 23-pressing proximity switch sensors; 24-flip-to-position proximity switch sensors; 25-a mounting seat; 26-a detection block; 27-a bush-holder; 28-operating handle; 29-a cover plate; 210-a rotating shaft; 211-upturning leaning position stop lever; 212-gear stop fool-proof cylinder; 213-locking cylinder connecting bolt shaft; 214-a sealing rubber ring;
FIG. 5 is a second schematic view of a film sticking device;
in fig. 5: 215-a gear stop fool-proof cylinder is connected with the bolt shaft; 216-a stop;
FIG. 6 is a schematic view of a silica gel pressing block pasting mechanism;
in fig. 6: 50-a sliding guide block; 51-a sliding shaft; 52-vacuum pipe joint one; 53-vacuum air pipe joint two; 54-a rotating shaft sleeve fixing seat; 55-rotating the rotating shaft; 56-vacuum air pipe joint III; 57-a return spring; 58-spring guide shaft; 59-sliding guide shaft; 510-sliding guide shaft sleeve; 511-silica gel briquetting connecting block; 512-silica gel positioning blocks; 513-silica gel briquetting; 514-guiding the positioning needle; 515-a touch sensitive membrane; 516-a guide bushing; 517-a locating pin return spring;
FIG. 7 is a schematic view of a touch panel mounting fixture and drive mechanism;
in FIG. 7: 60-the positioning cylinder is connected with an air pipe; 61-jacking cylinder retreating connecting air pipe; 62-the jacking cylinder extends out of the connecting air pipe; 63-installing a panel on the jacking mechanism; 64-jacking cylinder mounting bracket; 65-jacking cylinder; 66-touch panel clamp mounting bracket; 67-touch panel clamp; 68-a touch panel; 69-object detection sensor; 610-positioning the pressure head; 611-positioning cylinders.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings.
Referring to fig. 1 to 7, a method for vacuum adhesive film pasting of a curved touch control panel has the technical idea shown in fig. 1 to 7, and the specific implementation steps can be described as follows: an induction touch membrane 515 is installed on a silica gel pressing block 513 with a porous vacuum adsorption surface through a guide positioning needle 514 to be accurately positioned and fixed in a vacuum adsorption manner, a curved touch panel 68 is installed on a touch panel installation clamp 67, and after the induction touch membrane is installed in place through an object detection sensor 69, a certain clamping force is applied to one end of the curved touch panel 68 through a positioning air cylinder 611, so that the other end of the curved touch panel 68 is tightly attached to the clamp 67, and the curved touch panel 68 is accurately positioned to ensure the consistency of the pasting position of the induction touch membrane 515 on the curved touch panel 68; next, the cover plate 29 of the turning and pressing mechanism is turned downwards and pressed with the sealing rubber ring 214 and locked by the locking cylinders 22 installed on the two side edges of the film sticking device 2, after the vacuum system connected with the film sticking device 2 locks the turning and pressing mechanism, air in the closed space of the sticking station is pumped out by a rapid vacuum pumping method to reach a certain vacuum degree, the touch panel installation clamp 67 is driven by the jacking cylinder 65 to move upwards, the curved touch panel 68 is in contact with the sensing touch membrane 515 after the rising process, and as the jacking cylinder 65 continues to rise, the silica gel press block sticking mechanism 5 makes a rotary turning motion with a certain angle by taking the initial contact side line of the touch membrane 515 and the curved touch panel 68 as an axis, and the sensing touch membrane 515 is gradually stuck to the curved touch panel 68 by a simulated cylindrical silica gel rolling and sticking method; next step, jacking cylinder 65 reaches jacking summit position and commend 2 seconds after the silica gel briquetting 513 porous vacuum adsorption face removes the vacuum adsorption power, jacking cylinder 65 moves back to the home position, locking cylinder 22 removes the locking, vacuum system removes paste station enclosure space vacuum negative pressure, will upset pressing mechanism apron 29 is opened 120 to the position of berthing, the proximity switch 24 of berthing the position installation detects upset pressing mechanism apron 29 backstop and stops to prevent slow-witted cylinder 212 and stretch out, location cylinder 611 stretches out and removes right curved surface touch panel 68's clamp force, will paste the completion curved surface touch control panel takes out to accomplish and pastes the operation.
The simulated soft cylindrical silica gel rolling and laminating method is characterized in that a composite motion formed by the rotation of the silica gel pressing block 513 around the rotating shaft 55 at a certain angle and the linear compression of the rotating shaft sleeve fixing seat 54 at a certain distance is utilized to simulate the action of rolling and laminating a similar cylindrical roller shaft from one side edge of the touch membrane 515 to the other side, the laminating of the laminating method is actually a progressive line laminating method, and the quality defects that the touch membrane 515 is wrinkled and bubbles are sealed in a glue surface in the laminating process can be prevented, so that the laminating quality is improved; by adopting the laminating method, the rolling mechanism can be omitted, and one air cylinder can be used as a power source to simulate the same laminating action, so that the structural design is simplified, the equipment development cost is reduced, and the operation efficiency is improved.
A vacuum adhesive film pasting device for a curved touch control panel is shown in the attached drawings 2 and 3 in the composition structure, and comprises a film pasting device 2, a vacuum system, a rack 1 and a man-machine operation control system, wherein the film pasting device 2 is installed on the rack 1, the vacuum system is connected with the film pasting device 2, the man-machine operation control system is installed on a sheet metal panel fixedly installed on the front side of the rack 1, and the sheet metal panel has a certain inclination angle, so that the operation of personnel is facilitated; the man-machine operation control system comprises a starting button 10, an emergency stop switch 8, a system on-off button 7, an HMI touch control screen 9 and a PLC control system, and the PLC control system can receive input signals of the sensors and the like and realize automatic process control through an internal logic control program;
the film sticking device 2 is shown in fig. 4 and 5, and the film sticking device 2 comprises a turning pressing mechanism, a sticking station closed space, a locking cylinder 22, a touch panel mounting clamp 67, a jacking cylinder 65 and a sealing rubber ring 214, wherein the touch panel mounting clamp 22 is driven by the jacking cylinder 67, the jacking cylinder 65 is mounted in the sticking station closed space, the turning pressing mechanism is pressed and sealed with the sticking station closed space by the sealing rubber ring 214, and the locking cylinder 22 is used for the locking function after the turning pressing mechanism is pressed and sealed;
the overturning and pressing mechanism is mounted on the rack panel 20, and the composition structure of the overturning and pressing mechanism is shown in fig. 4 and 5, and comprises an overturning in-place detection proximity switch 24, a mounting seat 25, a detection block 26, a bush fixing seat 27, an operating handle 28, a manual operation cover plate mechanism 29, a rotating shaft 210, an upwards overturning leaning position stop lever 211, a stopping foolproof cylinder 212, a silica gel pressing block pasting mechanism 5 and the like, wherein the stopping foolproof cylinder 212 and the overturning in-place detection proximity switch 24 are mounted on the mounting seat 25, the manual operation cover plate mechanism 29 is mounted on the mounting seat 25 through the overturning rotating shaft 210, and the silica gel pressing block pasting mechanism 5 is mounted on the cover plate mechanism 29; the turnover pressing mechanism is a manually-operated cover plate mechanism which has a turnover function and can realize a foolproof function at a pressing position and a turning-up position, and the silica gel pressing block pasting mechanism 5 is arranged on the cover plate mechanism 29; when the cover plate 29 is turned to the pressing position, the pressing position of the cover plate 29 is detected and determined by a proximity switch 23 arranged on the side edge of the film sticking device 2, the proximity switch 23 transmits a detection signal to a PLC control system to drive piston rods of the locking cylinders 22 arranged on the two sides of the film sticking device 2 to extend out, the piston rods are connected with a locking bolt 213, and the bolt 213 is inserted into a bush fixing seat 27 arranged on the side edge of the cover plate 29, so that the cover plate is locked; when the cover plate 29 is turned to the turning-up position, the cover plate is detected in place by the proximity switch 24 arranged at the last position, the cover plate 29 transmits a detection signal to the PLC control system to drive the piston rod of the gear-stop foolproof cylinder 212 to extend out, and the cover plate 29 is prevented from being turned by misoperation; in addition, the piston rod of the gear-stop fool-proof cylinder 212 is connected with a gear-stop fool-proof cylinder connecting pin shaft 215, and the gear-stop fool-proof cylinder connecting pin shaft 215 is nested in an oil-free bush to ensure the radial rigidity of the gear-stop fool-proof cylinder connecting pin shaft 215, so that the service life of the mechanism can be prolonged;
the pasting station closed space is a completely closed cavity, the top surface of the cavity is the overturning pressing mechanism, the cover plate 29 of the overturning pressing mechanism and the cavity are pressed and sealed by a sealing rubber ring 214, the cavity is vacuumized by a vacuum system after being pressed and sealed, the bonding work of the sensing touch membrane 515 and the curved touch panel 68 is completed in the pasting station closed space, and cables and air pipes (including 60, 61 and 62) in the pasting station closed space are connected with the outer part of the space in a sealing processing mode;
the locking cylinder 22 is a compact cylinder with extension and retraction state signal feedback, a piston rod of the locking cylinder is connected with a locking bolt 213, and the bolt 213 locks the cover plate 29 by inserting into a bush fixing seat 27 fixed on the cover plate 29; the radial stiffness of the dead bolt locking mechanism is ensured by two self-lubricating sleeve holders mounted on the lock cylinder 22 side and the cover plate 29 side;
the touch panel mounting fixture is a clamping mechanism for mounting and positioning the curved touch panel 68, and the constituent structure of the touch panel mounting fixture is shown in fig. 7, and the touch panel mounting fixture comprises a touch panel fixture mounting bracket 66, a touch panel fixture 67, a touch panel 68, an object detection sensor 69, a positioning pressure head 610, a positioning cylinder 611 and a positioning cylinder connecting air pipe 60. When the curved touch panel 68 is placed in the fixture 67, the object detection sensor 69 mounted at the side of the fixture 67 senses that the curved touch panel 68 is placed in place, the sensor 69 transmits a sensing signal to the PLC control system to drive the positioning cylinder 611 at the front end of the fixture 67 to gently apply a certain clamping force to one end of the touch panel 68 through the positioning pressure head 610, so that the other end of the touch panel 68 is tightly attached to the fixture 67, and the touch panel 68 is accurately positioned to ensure the consistency of the adhering positions of the sensing touch membrane 515 on the touch panel 68;
the jacking cylinder mechanism is a driving component which is used for jacking the touch panel clamp so as to enable the curved touch panel 68 to be in contact with the sensing touch membrane 515 in the lifting process, then the silica gel pressing block pasting mechanism rotates and turns around the initial contact side line of the touch membrane 515 and the curved touch panel 68 by a certain angle, and the sensing touch membrane 515 is gradually pasted with the curved touch panel 68 by simulating a soft cylindrical silica gel rolling and pasting method, the structure of the driving component is shown in figure 7, the driving component comprises a jacking cylinder retraction connecting air pipe 61, a jacking cylinder extension connecting air pipe 62, a jacking mechanism mounting panel 63, a jacking cylinder mounting support 64 and a jacking cylinder 65, the jacking cylinder 65 has the signal output function of an extension and retraction position sensor, the jacking cylinder 65 is driven by a pair of high-rigidity linear guide rails to perform linear motion, and can ensure the stability of the linear lifting and pasting motion of the touch panel clamp 67 in the moving process, so as to ensure the precision of the sticking position and the consistency of products;
the sealing rubber ring 214 is embedded in a rectangular groove of a binding surface at the top of the box body of the film sticking device 2, is used for forming a sealing element with a full-sealing space with the box body after the cover plate 29 is pressed, and has the characteristics of strong elasticity, good toughness and good air tightness;
the stop-stopping fool-proof cylinder 212 is a fool-proof mechanism arranged on one side of the mounting base 25 of the turning and pressing mechanism, a piston rod of the cylinder 212 is connected with a plug pin shaft 215, the plug pin shaft 215 is nested in an oilless bush fixing seat, and when the plug pin shaft 215 extends out, the turning and pressing mechanism can be prevented from being turned over mistakenly to achieve fool-proof mechanism;
the silica gel pressing block pasting mechanism 5 is shown in the attached figure 6, and comprises a sliding guide block 50, a sliding shaft 51, a vacuum air pipe joint I52, a vacuum air pipe joint II 53, a rotating shaft sleeve fixing seat 54, a rotating shaft 55, a vacuum air pipe joint III 56, a reset spring 57, a spring guide shaft 58, a sliding guide shaft 59, a sliding guide shaft sleeve 510, a silica gel pressing block connecting block 511, a silica gel positioning block 512, a silica gel pressing block 513, a guide positioning needle 514 and an induction touch membrane 515. The mechanism 5 is a pasting mechanism which adsorbs the induction touch membrane 515 and rotates and turns around the initial contact side line of the touch membrane 515 and the curved touch panel 68 by a certain angle by taking the initial contact side line as an axis in the process that the curved touch panel 68 is loaded by the jacking cylinder 65 to perform jacking motion, the touch membrane 515 is adsorbed on the silica gel pressing block 513, one side of the contact side line of the silica gel pressing block connecting block 511 is provided with a pair of rotating shafts 55, the other corresponding side of the contact side line of the silica gel pressing block connecting block is provided with a pair of sliding shafts 51, and the rotating shaft sleeve fixing seat 54 is provided with a pair of sliding guide shafts 59 and a reset spring 57; the sticking mechanism 5 rotates around the rotating shaft 55 by a certain angle and linearly compresses the rotating shaft sleeve fixing seat 54 by a certain distance in the process of jacking the jacking cylinder 65, so that the sticking process of the touch membrane 515 is completed;
the guiding and positioning pins 514 are two telescopic guiding pins arranged on the silica gel pressing block 513, and are used for accurately positioning the absorption position of the sensing touch membrane 515; the sensing touch membrane 515 is provided with a round hole and an elliptical hole at corresponding positioning positions, the guiding and positioning pin 514 is in an extended state before being pasted, and when the sensing membrane 515 is pressed and pasted with the curved touch panel 68, the guiding and positioning pin 514 can retract, so that the complete pasting of the sensing membrane 515 is not influenced; the telescopic function of the guiding positioning pin 514 is realized by a positioning pin return spring 517 arranged in the silica gel pressing block connecting block 511, and the radial rigidity of the guiding positioning pin 514 is ensured by an oil-free bushing arranged in the connecting block 511;
the silica gel pressing block 513 is a soft silica gel block made of a specific material in a specific ratio, the outline of the soft silica gel block is matched with that of the touch membrane 515, and the soft silica gel pressing block has strong elasticity and toughness and is a material required by a typical membrane pasting process; the silica gel pressing block 513 is bonded on the silica gel positioning block 512 made of aluminum, the silica gel positioning block 512 is fixedly connected with the connecting block 511 through a screw and a positioning pin, and the silica gel pressing block 513 is a key tool for ensuring that bubbles are squeezed in the pressing process of the induction touch membrane 515 and the curved touch panel 68;
the vacuum system is shown in the attached figures 2 and 3 and comprises a vacuum tank 3, a vacuum pump 4, a filter 11, a connecting air pipe 12 between a vacuum control valve and the vacuum tank, a connecting air pipe 13 between the vacuum tank and the vacuum pump on the tank side, a one-way valve 14, a connecting air pipe 15 between the vacuum tank and the vacuum pump on the pump side, a vacuum control valve 16, a vacuum pressure gauge 17 with signal feedback and a pasting station closed space connecting air pipe 18. The vacuum system can quickly exhaust the air in the closed space of the pasting station to form a closed-loop control system with a certain vacuum degree, and the vacuum system can be used for realizing the quick vacuumizing method; the starting and stopping of the vacuum pump 4 are automatically controlled by a feedback signal of the vacuum pressure gauge 17 transmitted to a PLC control system, the vacuum tank 3 is an intermediate device for fast vacuumizing, air in the closed space of the pasting station is firstly fast pumped into the vacuum tank 3 so as to enable the vacuum degree in the closed space to reach the required vacuum degree fast, and then the vacuum pump 4 pumps out the air in the vacuum tank 3 in the process of operation at the pasting station, so that the vacuumizing time is saved; the check valve 14 can prevent air from reversely entering the vacuum tank 3 from the gap of the vacuum pump 4 during the period that the vacuum pump 4 stops working, thereby avoiding the frequent starting and air extraction of the vacuum pump 4 and further saving electric energy; the vacuum control valve 16 is a switch switching valve for opening and releasing the vacuum negative pressure of the closed space of the pasting station, when the vacuum negative pressure is opened by the control valve 16, the air in the closed space of the pasting station is pumped out by the vacuum pump 4, when the vacuum negative pressure is released by the control valve 16, the closed space of the pasting station is communicated with the atmosphere, namely, the vacuum negative pressure state is released, and the overturning pressing mechanism can be opened.
During working, equipment initialization check is firstly carried out, the sensing touch membrane 515 is manually installed on the silica gel pressing block 513 with the porous vacuum adsorption surface to be accurately positioned through the guide positioning needle 514, the start button 10 is pressed, and the silica gel pressing block 513 with the porous vacuum adsorption surface starts vacuum adsorption and fixation on the sensing touch membrane 515; then, manually installing the curved touch panel 68 on a touch panel installation fixture 67, and applying a certain clamping force to one end of the curved touch panel 68 by a positioning cylinder 611 after the curved touch panel 68 is installed in place by sensing of an object detection sensor 69 so that the other end of the curved touch panel 68 is tightly attached to the fixture 67, so as to accurately position the curved touch panel 68 to ensure consistency of the pasting position of the sensing touch membrane 515 on the curved touch panel 68;
further, the start button 10 is pressed, the stop cylinder 212 retracts to release the locking, the cover plate 29 of the turnover pressing mechanism is turned downwards manually to be pressed with the sealing rubber ring 214 and is locked by the locking cylinders 22 arranged on the two side edges of the film sticking device 2; after the vacuum system connected with the film sticking device 2 is locked by the overturning and pressing mechanism and air in the closed space of the sticking station is pumped out to reach a certain vacuum degree through a quick vacuum pumping method, the touch panel mounting clamp 67 is driven by the jacking cylinder 65 to move upwards, the curved touch panel 68 is in contact with the sensing touch membrane 515 after the lifting process, and the silica gel pressing block sticking mechanism 5 rotates and overturns at a certain angle by taking the initial contact side line of the touch membrane 515 and the curved touch panel 68 as the axis along with the continuous rising of the jacking cylinder 65, so that the sensing touch membrane 515 is gradually stuck to the curved touch panel 68 through a simulated soft cylindrical silica gel rolling sticking method;
still further, jacking cylinder 65 reaches jacking summit position and commend 2 seconds after the silica gel briquetting 513 porous vacuum adsorption face removes the vacuum adsorption power, jacking cylinder 65 moves back to the home position, locking cylinder 22 removes the locking, vacuum system removes paste station enclosure space vacuum negative pressure, and is manual with upset pressing mechanism apron 29 is opened 120 to the position of berthing, the proximity switch 24 of berthing the position installation detects that 29 backstops of upset pressing mechanism apron stop prevent slow-witted cylinder 212 and stretches out, it is right that location cylinder 611 stretches out and removes the clamp force of curved surface touch panel 68, will paste the completion at last curved surface touch control panel takes out the completion and pastes the operation.
Finally, it should also be noted that the above-mentioned list is only one specific embodiment of the invention. It is obvious that the invention is not limited to the above embodiments, but that many variations are possible. All modifications which can be derived or suggested by a person skilled in the art from the disclosure of the present invention are to be considered within the scope of the invention.
Claims (10)
1. The vacuum adhesive film pasting device for the curved touch control panel is characterized by comprising a rack (1), a film pasting device (2), a vacuum system and a man-machine operation control system, wherein the film pasting device (2) is installed on the rack (1), the vacuum system is connected with the film pasting device (2), and the man-machine operation control system is installed on the front side of the rack (1) and is in signal connection with the film pasting device (2) and the vacuum system; the film sticking device (2) comprises a turnover pressing mechanism, a pasting station closed cavity, a touch panel mounting fixture and a jacking mechanism, wherein the touch panel mounting fixture is connected with the jacking mechanism, the touch panel mounting fixture and the jacking mechanism are mounted in the pasting station closed cavity, and the turnover pressing mechanism is in press fit sealing with the pasting station closed cavity.
2. The vacuum adhesive film pasting device for the curved touch control panel according to claim 1, wherein the turning and pressing mechanism comprises a pressing proximity switch sensor (23), a turning in-place detection proximity switch (24), a mounting seat (25), a detection block (26), a bushing fixing seat (27), an operating handle (28), a cover plate (29), a rotating shaft (210), a blocking and stopping fool-proofing cylinder (212) and a silica gel pressing block pasting mechanism (5); the silica gel pressing block pasting mechanism (5) is arranged on the inner side of the cover plate (29); the cover plate (29) is mounted on the mounting seat (25) through a turning rotating shaft (210), the stop and fool-proof blocking cylinder (212) and the turning in-place detection proximity switch (24) are mounted on the mounting seat (25), and the mounting seat (25) is arranged on the rack (1); the pressing proximity switch sensor (23) is installed on the side edge of the film sticking device (2), the detection block (26), the bush fixing seat (27) and the operating handle (28) are respectively arranged on the cover plate (29), and the detection block (26) corresponds to the pressing proximity switch sensor (23); the vacuum protection device is characterized in that a piston rod of the blocking stopping fool-proof air cylinder (212) is connected with a blocking stopping fool-proof air cylinder connecting bolt shaft (215), a stop block (216) is arranged on the cover plate (29), the blocking stopping fool-proof air cylinder connecting bolt shaft (215) is matched with the stop block (216), misoperation is prevented, the cover plate is overturned, and a vacuum pipe connector I (52) is arranged on the cover plate (29) and is connected with a vacuum system through the vacuum pipe connector I (52).
3. The vacuum adhesive film pasting device for the curved touch control panel according to claim 1, wherein the pasting station closed cavity is formed by enclosing four sealing plates (21) arranged on a frame panel (20) of a frame (1), and the pasting station closed cavity and the cover plate (29) of the overturning pressing mechanism are pressed and sealed by a sealing rubber ring (214).
4. A curved touch control panel vacuum adhesive film sticking device according to claim 1, characterized in that the locking cylinders (22) are installed at both sides of the film sticking device (2), the piston rod of the locking cylinder (22) is connected with a locking bolt (213), and the bolt (213) locks the cover plate (29) by inserting into a bush fixing seat (27) fixed on the cover plate (29).
5. The vacuum adhesive film pasting device for the curved-surface touch control panel according to claim 1, wherein the touch panel mounting fixture comprises a touch panel fixture mounting bracket (66), a touch panel fixture (67), a curved-surface touch panel (68), an object detection sensor (69), a positioning pressure head (610) and a positioning air cylinder (611); curved surface touch panel (68) set up in touch panel anchor clamps (67), install in touch panel anchor clamps (67) avris object detection sensor (69), location cylinder (611) set up in touch panel anchor clamps (67) front end, through location pressure head (610) will touch panel (68) one end is applyed the clamp force and is made curved surface touch panel (68) the other end with touch panel anchor clamps (67) are hugged closely, thereby it is right touch panel (68) carry out the accurate positioning in order to guarantee sensing touch diaphragm (515) are in the uniformity of pasting the position on touch panel (68).
6. The vacuum adhesive film pasting device for the curved touch control panel according to claim 1, wherein the jacking mechanism comprises a jacking mechanism mounting panel (63), a jacking cylinder mounting bracket (64) and a jacking cylinder (65), the jacking cylinder mounting bracket (64) is arranged on the jacking mechanism mounting panel (63), the jacking cylinder (65) is arranged on the jacking cylinder mounting bracket (64), and the jacking cylinder (65) is fixedly connected with a touch panel mounting fixture.
7. The vacuum adhesive film pasting device for the curved touch control panel according to claim 2, wherein the silicone pressing block pasting mechanism (5) comprises a sliding guide block (50), a sliding shaft (51), a second vacuum air pipe joint (53), a rotating shaft sleeve fixing seat (54), a rotating shaft (55), a third vacuum air pipe joint (56), a reset spring (57), a spring guide shaft (58), a sliding guide shaft (59), a sliding guide shaft sleeve (510), a silicone pressing block connecting block (511), a silicone positioning block (512), a silicone pressing block (513), a guiding positioning needle (514) and an induction touch film (515); a pair of guiding and positioning needles (514) is installed in the silica gel pressing block (513), the silica gel pressing block (513) is installed on the silica gel pressing block connecting block (511), a vacuum air pipe connector II (53) and a vacuum air pipe connector III (56) are arranged on the silica gel pressing block connecting block (511) and are connected with a vacuum system through the vacuum air pipe connector II (53) and the vacuum air pipe connector III (56), and the sensing touch membrane (515) is adsorbed on the silica gel pressing block (513); silica gel briquetting connecting block (511) one side is equipped with a pair of pivot (55) to install on pivot axle sleeve fixing base (54) through pivot (55), silica gel briquetting connecting block (511) opposite side is equipped with a pair of sliding shaft (51), and installs on sliding guide piece (50) through sliding shaft (51), pivot axle sleeve fixing base (54) are provided with a pair of sliding guide axle (59) and reset spring (57), and install on apron (29) through sliding guide axle (59) and reset spring (57), make silica gel briquetting (513) can wind pivot (55) are made and are rotated and are followed pivot axle sleeve fixing base (54) do linear motion, and then accomplish the process of pasting of response touch diaphragm (515).
8. The vacuum adhesive film pasting device for the curved touch control panel according to claim 1, wherein the vacuum system comprises a vacuum tank (3), a vacuum pump (4), a filter (11), a one-way valve (14), a vacuum control valve (16) and a vacuum pressure gauge (17); vacuum pump (4) with be connected with on the trachea between vacuum tank (3) the check valve, vacuum control valve (16) connect in vacuum tank (3) with paste on the trachea between the station sealed cavity, an interface of vacuum control valve (16) is connected with the atmosphere through filter (11), vacuum pressure table (17) are connected paste on the station sealed cavity.
9. The vacuum adhesive film pasting device for the curved touch control panel according to claim 1, wherein the man-machine operation control system comprises a start button (10), an emergency stop switch (8), a system on-off button (7), an HMI touch control screen (9) and a PLC control system, and the PLC control system receives input signals and realizes automatic process control through an internal logic control program.
10. A vacuum adhesive film pasting method for a curved surface touch control panel is characterized by comprising the following steps: the method comprises the following steps:
1) The induction touch membrane is arranged on a silica gel pressing block with a porous vacuum adsorption surface through a guide positioning needle to carry out accurate positioning and vacuum adsorption fixation;
2) After the curved-surface touch panel is mounted on the touch panel mounting clamp in place through induction of the object detection sensor, a clamping force is applied to one end of the curved-surface touch panel by the positioning cylinder to enable the other end of the curved-surface touch panel to be tightly attached to the clamp, so that the curved-surface touch panel is accurately positioned to ensure the consistency of the pasting positions of the induction touch diaphragms on the curved-surface touch panel;
3) The method comprises the following steps that a cover plate of a turnover pressing mechanism is turned downwards, a sealing rubber ring is pressed and locked by locking cylinders arranged on two side edges of a film sticking device, a vacuum system connected with the film sticking device pumps air in a closed space of a sticking station through a quick vacuumizing method after the turnover pressing mechanism is locked, after a preset vacuum degree is reached, a touch panel mounting fixture is driven by a jacking cylinder to move upwards, a curved surface touch panel rises and is in contact with an induction touch membrane, the jacking cylinder continues to rise, a silica gel pressing block sticking mechanism rotates and turns around by taking an initial contact side line of the induction touch membrane and the curved surface touch panel as an axis, and the induction touch membrane is gradually stuck with the curved surface touch panel through a simulation soft cylindrical silica gel rolling and sticking method;
4) After the jacking cylinder reaches jacking vertex position pressure maintaining, the vacuum adsorption force is relieved on the porous vacuum adsorption surface of the silica gel pressing block, the jacking cylinder retreats to the original position, the locking cylinder is unlocked, the vacuum system is used for relieving vacuum negative pressure of a closed cavity of the pasting station, the cover plate of the overturning pressing mechanism is opened to the stopping position, the proximity switch installed at the stopping position detects that the rear baffle of the cover plate of the overturning pressing mechanism stops and prevents the idle cylinder from extending out, the positioning cylinder extends out and relieves the clamping force on the curved surface touch panel, and finally the curved surface touch control panel which is pasted completely is taken out to complete the pasting operation.
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| CN202211303681.XA CN115838571A (en) | 2022-10-24 | 2022-10-24 | Vacuum adhesive film pasting device and method for curved surface touch control panel |
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| CN202211303681.XA CN115838571A (en) | 2022-10-24 | 2022-10-24 | Vacuum adhesive film pasting device and method for curved surface touch control panel |
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