CN115691339A

CN115691339A - Pre-bending equipment of flexible screen

Info

Publication number: CN115691339A
Application number: CN202211409353.8A
Authority: CN
Inventors: 胡伟先; 晏葵; 周文攀
Original assignee: China Autovation Co ltd Shenzhen
Current assignee: China Autovation Co ltd Shenzhen
Priority date: 2022-11-11
Filing date: 2022-11-11
Publication date: 2023-02-03

Abstract

The invention discloses a pre-bending device of a flexible screen, which comprises a rack, a pre-bending mechanism arranged on the rack and a transcription mechanism arranged on the rack, wherein the pre-bending mechanism comprises a bending mechanism body and a bending mechanism body; the pre-bending mechanism comprises a first moving driving assembly, a first moving frame, a rotating driving assembly and a curved surface jig, wherein the first moving driving assembly is arranged on the rack and used for driving the first moving frame to move; the transfer mechanism comprises a support frame, a transfer lifting driving assembly and a transfer rubber roller, the support frame is installed on the rack, the transfer lifting driving assembly is installed on the support frame and used for driving the transfer rubber roller to lift, and the flexible screen is pressed on the curved surface of the curved surface jig through the transfer rubber roller. The flexible OLED screen has the effect of prolonging the service life of the flexible OLED screen.

Description

Pre-bending equipment of flexible screen

Technical Field

The invention relates to the technical field of screen laminating equipment, in particular to pre-bending equipment for a flexible screen.

Background

With the rapid development of the electronic industry, the requirements on the display screen of an electronic product are higher and higher, such as resolution, color gamut precision and the like; with the further development of the display screen, the display screen has requirements on the functions of the display screen, especially the display screen can be folded, and at present, a large number of electronic products with folding screens exist in the market, and the electronic products with the folding screens are deeply loved by consumers due to the unique characteristics of the electronic products.

At present, in the related art, the flexible OLED screen is mainly attached by a roller or a vacuum flat attaching method, the flexible OLED screen is laid flat, and then accessories (TP, CW, film, SUS, and the like) related to the OLED are attached to the flexible OLED screen; the folding angle of the flexible OLED screen is that the flexible OLED screen is folded from 0 degree of unfolding to 180 degrees of folding, a flat-pasting mode is adopted, namely, the flexible OLED screen is unfolded to be attached under 0 degree at an included angle, the internal stress of the flexible OLED screen is smaller or almost equal to zero at the moment, after the folding angle of the flexible OLED screen reaches 180 degrees, the internal stress of the flexible OLED screen is larger and is also in a maximum state, the flexible OLED screen can be damaged due to too large internal stress of the flexible OLED screen, the product bending times are influenced, and the service life of the flexible OLED screen is shortened.

Disclosure of Invention

In order to improve the problem of the reduction of the service life of the flexible OLED screen, the application provides a pre-bending device of the flexible screen.

In a first aspect, the pre-bending device for the flexible screen provided by the application adopts the following technical scheme:

a pre-bending device of a flexible screen comprises a frame; the pre-bending mechanism is arranged on the rack and used for bending the flexible screen and comprises a first moving driving assembly, a first moving frame, a rotating driving assembly and a curved surface jig, the first moving driving assembly is arranged on the rack and used for driving the first moving frame to move, the rotating driving assembly is arranged on the first moving frame and used for driving the curved surface jig to rotate, the flexible screen is attached to the curved surface of the curved surface jig, and a fixing piece used for fixing the flexible screen is arranged on the curved surface jig; the transfer mechanism is installed on the frame and used for bending the curved surface of the curved surface jig along the flexible screen, the transfer mechanism comprises a support frame, a transfer lifting driving assembly and a transfer rubber roller, the support frame is installed on the frame, the transfer lifting driving assembly is installed on the support frame and used for driving the transfer rubber roller to lift, the transfer rubber roller is parallel to the curved surface of the curved surface jig and abuts against one side, far away from the curved surface jig, of the flexible screen, when the curved surface jig moves towards the transfer rubber roller, the transfer lifting driving assembly drives the transfer rubber roller to abut against the side face of the flexible screen, the rotary driving assembly drives the curved surface jig to rotate, and the transfer rubber roller presses the flexible screen onto the curved surface of the curved surface jig.

By adopting the technical scheme, one end of the flexible screen is fixed on the curved surface of the curved surface jig through the fixing piece, the first moving driving assembly drives the first moving frame to move to the position below the transfer rubber roller, the transfer rubber roller is positioned above the flexible screen, and the transfer lifting driving assembly drives the transfer rubber roller to descend to abut against the flexible screen; the rotation driving assembly drives the curved surface jig to rotate, the flexible screen is under the extrusion of reprinting rubber roll and curved surface jig, the curved surface of curved surface jig is buckled along the flexible screen, the flexible screen is attached on the curved surface of curved surface jig completely, the flexible screen after the mounting will buckle is fixed, thereby realize the prebending of flexible screen, with the stress of flexible screen to 0 and 180 both ends dispersion, reduce the stress that the flexible screen produced when buckling 180, thereby can reduce the damage of flexible screen, and then can increase the number of times of buckling of flexible screen, be favorable to improving the problem that flexible screen life reduces.

Optionally, the curved surface of the curved surface jig includes a first plane section, a second plane section and an arc surface section, the arc surface section is located between the first plane section and the second plane section, one side of the arc surface section is connected with the side of the first plane section, and the other side of the arc surface section is connected with the side of the second plane section; the transfer rubber roller is sequentially abutted against the flexible screen along the first plane section, the cambered surface section and the second plane section, and the flexible screen is sequentially attached along the first plane section, the cambered surface section and the second plane section.

By adopting the technical scheme, in the process of bending the flexible screen, the flexible screen is firstly fixed on the surface of a first plane section, the first plane section is flush with the horizontal plane, the transfer rubber roller is pressed against the flexible screen, the first moving driving assembly drives the first moving frame to move, and the transfer rubber roller presses the flexible screen on the first plane section; when the first plane section is connected with one side of the cambered surface section and reaches the transfer rubber roller, the first moving frame stops moving, the rotary driving assembly drives the curved surface jig to rotate, the distance between the surface of the transfer rubber roller and the surface of the cambered surface section is kept constant in the rotating process, and the flexible screen is bent on the surface of the cambered surface section through the transfer rubber roller and is fixed through the fixing piece; when one side of the cambered surface section, which is connected with the second plane section, reaches the transfer rubber roller, the cambered surface jig stops rotating at the moment, the second plane section is parallel and level to the horizontal plane, the first moving driving assembly drives the first moving frame to continue moving, and the flexible screen on the second plane section is pressed by the transfer rubber roller, so that the bent flexible screen can be obtained.

Optionally, a vacuum adsorption cavity is arranged inside the curved surface jig, a plurality of vacuum adsorption holes are arranged along the curved surface of the curved surface jig, and the vacuum adsorption cavity is communicated with the vacuum adsorption holes; the mounting is vacuum generator, vacuum generator communicate in the vacuum adsorbs the chamber, and vacuum generator is used for making the vacuum adsorbs the chamber and produces the negative pressure and adsorb flexible screen.

Through adopting the above technical scheme, when fixing the flexible screen on the curved surface tool, vacuum generator works, make the vacuum adsorption intracavity produce the negative pressure, because be provided with a plurality of vacuum adsorption holes on the curved surface tool, the vacuum adsorption hole will be attached to adsorb fixedly at the flexible screen on the curved surface tool curved surface, adsorb fixed flexible screen through the vacuum adsorption hole, the vacuum adsorption hole can be fixed to adsorbing fast covering the flexible screen in vacuum adsorption hole, and the vacuum adsorption hole makes whole flexible screen atress even, be difficult for taking place deformation because of the atress inequality.

Optionally, the feeding mechanism is installed on the rack, the feeding mechanism is used for conveying the flexible screen and the accessories to the curved surface jig, the feeding mechanism includes a second moving driving assembly, a second moving frame and a first vacuum platform, the second moving driving assembly is arranged on the rack, the second moving driving assembly is used for driving the second moving frame to move, the first vacuum platform is installed on the second moving frame, the first vacuum platform is used for adsorbing the flexible screen and the accessories, and the second moving driving assembly drives the second moving frame to move to the curved surface jig; the correcting mechanism is arranged on the rack and used for sequentially grabbing the flexible screen and the accessories on the first vacuum platform, correcting the flexible screen and the accessories and attaching the flexible screen and the accessories to the curved surface of the curved surface jig, and comprises a fixed frame, a first horizontal movement driving assembly, a third moving frame, a second horizontal movement driving assembly, a fourth moving frame, a vertical lifting driving assembly, a fifth moving frame, a rotation correction driving assembly and a second vacuum platform, wherein the fixed frame is arranged on the rack, the first horizontal movement driving assembly is arranged on the fixed frame, the first horizontal movement driving assembly is used for driving the third moving frame to move, the second horizontal movement driving assembly is arranged on the third moving frame and used for driving the fourth moving frame to move, the movement paths of the third moving frame and the fourth moving frame are perpendicular to each other, the vertical lifting driving assembly is arranged on the fourth moving frame and used for driving the fifth moving frame to lift, the rotation correction driving assembly is arranged on the fifth moving frame, the rotation correction driving assembly is used for driving the second horizontal movement driving assembly to attach the accessories to the flexible screen and the flexible vacuum platform, and the vacuum platform is used for attaching the flexible screen and the curved surface of the vacuum jig to the curved surface of the vacuum jig; the vision alignment mechanism is installed on the rack and used for shooting the characteristic points of the flexible screen and the accessories to be compared so as to position the positions of the flexible screen and the accessories, and the positions of the flexible screen and the accessories are corrected through the correction mechanism.

By adopting the technical scheme, when the flexible screen needs to be accurately positioned on the curved surface jig, the flexible screen is placed on the first vacuum platform, and the flexible screen is preliminarily positioned through the first vacuum platform; the first moving driving assembly drives the first moving frame to move to the correcting mechanism, and the second moving driving assembly drives the second moving frame to move to the correcting mechanism; the first horizontal movement driving assembly drives the third moving frame to move to the position above the first vacuum platform, the second horizontal movement driving assembly drives the fourth moving frame to move to the position above the first vacuum platform, the second vacuum platform is aligned to the flexible screen, the vertical lifting driving assembly drives the fifth moving frame to descend, the fifth moving frame drives the second vacuum platform to be attached to the flexible screen, the second vacuum platform adsorbs the flexible screen, the first vacuum platform releases adsorption on the flexible screen, the vertical lifting driving assembly drives the fifth moving frame to rise, and the second vacuum platform captures the flexible screen; the correcting mechanism moves the second vacuum platform to the vision aligning mechanism, the characteristic points of the flexible screen shot by the vision aligning mechanism are compared, the position of the flexible screen is positioned, the system calculates, the rotary correcting driving assembly is controlled to drive the second vacuum platform to rotate, the first horizontal movement driving assembly drives the third moving frame to move and the second horizontal movement driving assembly drives the fourth moving frame to move, the position of the flexible screen is adjusted, the flexible screen can be accurately aligned with the curved surface jig, the vertical lifting driving assembly drives the second vacuum platform to descend, the second vacuum platform attaches the flexible screen on the curved surface jig and is fixed by the fixing piece, and pre-bending is carried out.

When the accessories need to be accurately positioned and adhered to the flexible screen, the accessories are placed on a first vacuum platform; the first mobile driving assembly drives the first mobile frame to move to the correcting mechanism, the second mobile driving assembly drives the second mobile frame to move to the visual angle aligning mechanism, the visual aligning mechanism shoots characteristic points of accessories for comparison, the positions of the accessories are positioned, and the rotary correcting driving assembly is controlled to drive the second vacuum platform to rotate and adjust the position of the second vacuum platform through system calculation; the first horizontal movement driving assembly drives the third moving frame to move to the position above the first vacuum platform, the vertical lifting driving assembly drives the second vacuum platform to descend and adsorb accessories, the adsorption of the first vacuum platform on the accessories is removed, the second vacuum platform absorbs the accessories, the rotary correction driving assembly drives the second vacuum platform to reset, the accessories are enabled to be accurately aligned with the flexible screen, the vertical lifting driving assembly drives the second vacuum platform to descend, the accessories are attached to the flexible screen, and the accessories are pressed on the flexible screen which is pre-bent through the transfer rubber roller.

Optionally, the film tearing mechanism is mounted on the rack and used for tearing a protective film of an accessory, and the film tearing mechanism comprises a supporting plate, an easily-torn sticker roll, a winding motor, a bearing plate, a first positioning optical fiber, a clip lifting driving assembly, a clamping jaw cylinder and an easily-torn clip; the support plate is mounted on the rack, the easy-to-tear sticker roll rotates on one side face of the support plate, the winding motor is mounted on the other side of the support plate, an output shaft of the winding motor penetrates through the support plate, the winding motor is used for collecting easy-to-tear sticker strips of the easy-to-tear sticker roll, one side face, close to the easy-to-tear sticker roll, of the support plate is rotatably connected with a plurality of tensioning rollers, and the tensioning rollers are used for supporting the easy-to-tear sticker strips; a notch is formed in the top of the supporting plate, the bearing plate is mounted at the top of the supporting plate, which is close to one side face of the easily-torn adhesive material roll, a first clamping opening is formed in the bearing plate, the first clamping opening is communicated with the notch, and the easily-torn adhesive material tape is wound on the top face of the bearing plate; the first positioning optical fiber is arranged on the side surface of the supporting plate and is positioned below the first clamping opening, and the first positioning optical fiber is used for sensing the easy-to-tear tape and controlling the rolling motor to stop rotating; the clamp lifting driving assembly is arranged on the second moving frame and used for driving the clamping jaw air cylinder to lift; the easy-to-tear-paste clamp is connected to a clamping jaw of the clamping jaw cylinder, the second moving driving assembly drives the easy-to-tear-paste clamp to extend into the first clamping opening, and the clamping jaw cylinder drives the easy-to-tear-paste clamp to clamp the easy-to-tear paste; easily tear subsides that paste clip clamp was got and remove the frame along with prime number second and move extremely during the aligning gear below, vertical lift drive subassembly drive second vacuum platform descends and pastes the looks adhesion with absorbent accessory bottom surface protecting film with easily tearing, vertical lift drive subassembly resets, easily tears the protecting film of pasting with the accessory bottom surface and tears.

By adopting the technical scheme, when the accessory protective film needs to be torn off, the winding motor works, the winding motor drives the easy-to-tear adhesive tape to be wound on the output shaft, the winding motor drives the easy-to-tear adhesive tape roll to rotate through the easy-to-tear adhesive tape, and the easy-to-tear adhesive tape roll slides on the top surface of the bearing plate; when the easy-to-tear paste is sensed by the first positioning optical fiber, the winding motor stops working, the easy-to-tear paste material belt stops moving, the second moving driving assembly drives the second moving frame to move to the supporting plate, the easy-to-tear paste clamp stretches into the first clamping opening, the easy-to-tear paste is located between the easy-to-tear paste clamps, the clamping jaw cylinder drives the easy-to-tear paste clamp to clamp the easy-to-tear paste clamp, the clamp lifting driving assembly drives the clamping jaw cylinder to descend, the easy-to-tear paste clamp tears the easy-to-tear paste from the easy-to-tear paste material belt, the second moving driving assembly drives the second moving frame to move to the correcting mechanism, the second vacuum chuck for driving the vertical lifting driving assembly to drive and adsorb accessories descends, the easy-to-tear paste is adhered to the surface of the accessory protective film, the vertical vacuum driving assembly drives the second plate to ascend, the easy-to tear paste to tear the accessory protective film, automatic film tearing is realized, and the film tearing efficiency is improved.

It is optional, the backup pad is close to easily tear a side of rolling of material of pasting and install first lift cylinder, the piston rod of first lift cylinder is connected with the connecting plate, the top of connecting plate is connected with the clamp plate, the clamp plate supports to press to keep away from in easily tearing the subsides material area accept a side of board, it gets the mouth to be provided with the second clamp that supplies to easily tear a clip entering on the clamp plate, first location optical fiber senses easily to tear subsides and control the rolling motor stall, simultaneously first lift cylinder drives the cooperation of clamp decline accept the board will easily tear the subsides material area and press from both sides tightly.

By adopting the technical scheme, when the first positioning optical fiber senses the easy-to-tear tape, the winding motor stops rotating, the easy-to-tear tape stops moving, and when the easy-to-tear clip is used for tearing the easy-to-tear tape, the easy-to-tear tape easily pulls the easy-to-tear tape roll, so that too much easy-to-tear tape enters the first clamping opening, the positioning error of the first positioning optical fiber is easily caused, and the easy-to-tear clip is empty; consequently when easily tearing when pasting material area stop motion, first lift cylinder drives the connecting plate decline this moment, and connecting plate driving pressure board descends, and the clamp plate supports to press in the top surface of accepting the board, and the clamp plate will easily tear with accepting the board and paste the material area and press from both sides tightly, easily tear the in-process that pastes the clip and tear easily and tear the in-process that pastes, easily tear and paste the material area and hardly tear and paste the material book, reduce the condition emergence of easily tearing and pasting the empty clamp.

Optionally, the clip lift drive assembly includes second lift cylinder, crane and rotating electrical machines, second lift cylinder installs on the second removes the frame, the crane connect in on the piston rod of second lift cylinder, rotating electrical machines install in on the crane, the clamping jaw cylinder install in the output shaft of rotating electrical machines, being used for of rotating electrical machines drives easily to tear the subsides and wind rotating electrical machines's output shaft rotates.

By adopting the technical scheme, when the easily-torn clamp is required to be lifted, the lifting frame is driven to lift through the second lifting cylinder, and the lifting frame can drive the clamping jaw cylinder and the easily-torn clamp to lift through the rotating motor; because easily tear and paste the clip clamp and get and easily tear the subsides back, easily tear and paste the binding end and receive self gravity flagging, easily tear and paste on the protecting film of accessory, so through the rotatory clamping jaw cylinder of rotating electrical machines, clamping jaw cylinder will easily tear and paste the clip and lift up, then easily tear the bonding end of pasting and lift up, easily tear the bonding face of pasting the binding end towards the protecting film of accessory, easily tear this moment and paste more easily and bond to the protecting film of accessory on.

Optionally, a connecting frame is installed on the clamping jaw air cylinder, a tightly-abutting air cylinder is installed on the connecting frame, a butt head is installed at the end portion of a piston rod of the tightly-abutting air cylinder, the butt head is located below the adhering section easy to tear, and the adhering section easy to tear is adhered to a protective film of the accessory by the tightly-abutting air cylinder driving butt head.

Through adopting above-mentioned technical scheme, when the protecting film of accessory was pasted with easily tearing, support tight cylinder drive butt head butt through control and easily tear the subsides, under the combined action of butt head and second vacuum platform, will easily tear the subsides and firmly paste the surface at the accessory protecting film, vertical lift actuating mechanism drive second vacuum platform rises, easily tears the subsides and tears the accessory protecting film.

Optionally, a second positioning optical fiber is installed on the connecting frame, and the second positioning optical fiber is used for sensing whether the easy-to-tear sticker tears off the protective film of the accessory.

Through adopting above-mentioned technical scheme, when easily tearing the subsides and tearing off the protecting film, second location optic fibre is easily torn through the response and is pasted whether with the protecting film of accessory tears, if sense and do not tear, the rethread easily tears the subsides and tears again for the accessory can be pasted in flexible screen surface.

Optionally, a cleaning device is installed on the support frame, the curved surface jig is located below the cleaning device, and the cleaning device is used for cleaning foreign matters on the flexible screen.

By adopting the technical scheme, before the flexible screen and the accessory are bonded, the curved surface jig is driven to reach the lower part of the cleaning device through the first moving driving assembly, the cleaning device cleans the flexible screen, foreign matters on the surface of the flexible screen are cleaned, and the flexible screen and the accessory are bonded more firmly.

In summary, the present application includes at least one of the following beneficial technical effects:

1. one end of the flexible screen is fixed on the curved surface of the curved surface jig through a fixing piece, the first moving driving assembly drives the first moving frame to move to the position below the transfer rubber roller, the transfer rubber roller is located above the flexible screen, and the transfer lifting driving assembly drives the transfer rubber roller to descend to abut against the flexible screen; the rotary driving assembly drives the curved surface jig to rotate, the flexible screen is bent along the curved surface of the curved surface jig under the extrusion of the transfer rubber roller and the curved surface jig, the flexible screen is completely attached to the curved surface of the curved surface jig, the bent flexible screen is fixed by the fixing piece, so that the pre-bending of the flexible screen is realized, the stress of the flexible screen is dispersed to two ends of 0-degree and 180-degree, the stress generated when the flexible screen is bent for 180-degree is reduced, the damage of the flexible screen can be reduced, the bending times of the flexible screen can be increased, and the problem of reducing the service life of the flexible screen is solved;

2. in the process of bending the flexible screen, the flexible screen is firstly fixed on the surface of a first plane section, the first plane section is flush with the horizontal plane, the transfer rubber roller abuts against the flexible screen, the first moving driving assembly drives the first moving frame to move, and the transfer rubber roller presses the flexible screen on the first plane section; when the first plane section is connected with one side of the cambered surface section and reaches the transfer rubber roller, the first moving frame stops moving, the rotary driving assembly drives the curved surface jig to rotate, the distance between the surface of the transfer rubber roller and the surface of the cambered surface section is kept constant in the rotating process, and the flexible screen is bent on the surface of the cambered surface section through the transfer rubber roller and is fixed through the fixing piece; when one side of the cambered surface section, which is connected with the second plane section, reaches the transfer rubber roll, the cambered surface jig stops rotating at the moment, the second plane section is flush with the horizontal plane, the first moving driving assembly drives the first moving frame to continue moving, and the transfer rubber roll presses the flexible screen on the second plane section, so that a bent flexible screen can be obtained;

3. when fixing the flexible screen on the curved surface tool, vacuum generator work for the vacuum adsorption intracavity produces the negative pressure, because be provided with a plurality of vacuum adsorption holes on the curved surface tool, the vacuum adsorption hole will be attached and adsorb fixedly at the flexible screen on the curved surface tool curved surface, adsorb fixed flexible screen through the vacuum adsorption hole, the vacuum adsorption hole can be fixed to the flexible screen that covers the vacuum adsorption hole adsorbs fast, and the vacuum adsorption hole makes whole flexible screen atress even, be difficult for taking place deformation because of the atress inequality.

Drawings

Fig. 1 is a schematic structural diagram of a pre-bending apparatus according to an embodiment of the present application.

Fig. 2 is a schematic structural diagram of a pre-bending mechanism according to an embodiment of the present application.

Fig. 3 is a schematic structural diagram of a curved surface fixture according to an embodiment of the present application.

Fig. 4 is a schematic cross-sectional structure diagram of a curved surface fixture according to an embodiment of the present application.

Fig. 5 is a schematic structural diagram of a transfer mechanism according to an embodiment of the present application.

Fig. 6 is a schematic structural diagram of a feeding mechanism according to an embodiment of the present application.

Fig. 7 is a schematic structural diagram of another view of a feeding mechanism according to an embodiment of the present application.

FIG. 8 is a top view of a loading mechanism according to an embodiment of the present application.

Fig. 9 is a schematic structural diagram of a visual alignment mechanism according to an embodiment of the present application.

FIG. 10 is a schematic structural diagram of a calibration mechanism according to an embodiment of the present application.

Fig. 11 is a partial structural schematic diagram of a correction mechanism according to an embodiment of the present application.

FIG. 12 is a schematic structural diagram of a film tearing mechanism according to an embodiment of the present application.

Fig. 13 is a partial structural schematic diagram of a film tearing mechanism according to an embodiment of the present application.

Fig. 14 is an enlarged schematic view of a portion a of fig. 6.

Description of the reference numerals:

1. a frame;

2. a pre-bending mechanism; 21. a first movement drive assembly; 22. a first movable frame; 23. a rotary drive assembly; 24. a curved surface jig; 241. a first planar section; 242. a second planar segment; 243. a cambered surface section; 244. a vacuum adsorption chamber; 245. a vacuum adsorption hole; 25. a fixing member;

3. a transfer mechanism; 31. a support frame; 311. erecting a frame; 312. a cross frame; 32. a transcription lifting drive component; 321. a transfer support; 322. a transfer lifting module; 323. a transfer lifting cylinder; 33. transferring the rubber roller;

4. a feeding mechanism; 41. a second movement drive assembly; 42. a second movable frame; 43. a first vacuum platform; 431. loading the accessory; 432. feeding materials on a flexible screen; 433. a baffle plate; 434. taking a phase port;

5. a correction mechanism; 51. a fixed mount; 52. a first horizontal movement drive assembly; 53. a third movable frame; 54. a second horizontal movement drive assembly; 55. a fourth movable frame; 56. a vertical lift drive assembly; 57. a fifth movable frame; 58. a rotation correction drive assembly; 59. a second vacuum platform;

6. a vision alignment mechanism; 61. a mounting frame; 62. a third movement drive assembly; 63. a first connecting seat; 64. a second connecting seat; 65. a CCD camera; 66. a light source;

7. a film tearing mechanism; 71. a support plate; 711. a tensioning roller; 712. a notch; 713. a first lifting cylinder; 714. a connecting plate; 715. pressing a plate; 7151. a second gripping port; 72. the easy-tearing pasting material roll; 73. a winding motor; 74. a bearing plate 741 and a first clamping port; 75. a first positioning optical fiber; 76. a clip elevation drive assembly; 761. a second lifting cylinder; 762. a lifting frame; 763. a rotating electric machine; 77. a clamping jaw cylinder; 78. the clip is easy to tear and stick; 781. an upper clamping jaw; 782. a lower jaw; 79. a connecting frame; 791. tightly abutting against the air cylinder; 792. a butting head; 793. a second positioning optical fiber;

8. a cleaning device;

9. the easy-to-tear pastes the material area.

Detailed Description

The present application is described in further detail below with reference to figures 1-14.

Example 1

The embodiment of the application discloses a pre-bending device of a flexible screen. Referring to fig. 1, the curved surface laminating device comprises a rack 1, and a pre-bending mechanism 2, a transfer mechanism 3, a feeding mechanism 4, a correcting mechanism 5, a vision alignment mechanism 6 and a film tearing mechanism 7 which are arranged on the top surface of the rack 1; the pre-bending mechanism 2 is used for bending the flexible screen; the transfer mechanism 3 is used for bending the flexible screen along the curved surface of the curved surface jig 24; the feeding mechanism 4 is used for conveying the flexible screen and the accessories to the pre-bending mechanism 2; the correcting mechanism 5 is used for sequentially grabbing the flexible screen and accessories on the feeding mechanism 4, correcting and attaching the flexible screen and accessories to the pre-bending mechanism 2; the vision alignment mechanism 6 is used for shooting characteristic points of the flexible screen and the accessories to be compared so as to position the flexible screen and the accessories, and then correcting the positions of the flexible screen and the accessories through the correction mechanism 5; the film tearing mechanism 7 is used for tearing the protective film of the accessory so that the accessory can be adhered to the surface of the flexible screen.

Referring to fig. 1 and 2, the pre-bending mechanism 2 includes a first moving driving assembly 21, a first moving frame 22, a rotating driving assembly 23, and a curved surface fixture 24, where the first moving driving assembly 21 may be a screw sliding table module, the screw sliding table module is fixedly connected to the top surface of the frame 1, the first moving frame 22 is connected to a sliding seat on the screw sliding table module, the screw sliding table module drives the first moving frame 22 to move along a linear direction, and the first moving driving assembly 21 may also be any structure capable of driving the first moving frame 22 to move along the linear direction; the rotary driving component 23 can be a motor, the motor is mounted on the first moving frame 22, and an output shaft of the motor is parallel to the top surface of the machine frame 1 and perpendicular to the moving direction of the first moving frame 22; the curved surface jig 24 is fixedly connected to an output shaft of the motor, the motor drives the curved surface jig 24 to rotate around the axis of the output shaft of the motor, and the curved surface of the curved surface jig 24 is parallel to the output shaft of the motor.

Referring to fig. 2 and 3, the curved surface of the curved surface jig 24 includes a first plane section 241, a second plane section 242, and an arc section 243, the arc section 243 is located between the first plane section 241 and the second plane section 242, one side of the arc section 243 is connected to the side of the first plane section 241, and the other side of the arc section 243 is connected to the side of the second plane section 242; the axis of the output shaft of the rotary driving assembly 23 is parallel to the arc surface of the arc surface section 243, the radian of the arc surface section 243 is an arc, and the axis of the output shaft of the rotary driving assembly 23 is coincided with the circle center of the arc surface section 243; the axis of the output shaft of the rotary drive assembly 23 is parallel to the planes of the first planar segment 241 and the second planar segment 242.

Referring to fig. 3 and 4, a vacuum adsorption cavity 244 is arranged inside the curved surface jig 24, and the vacuum adsorption cavity 244 has three relatively independent cavities; the first plane section 241, the second plane section 242 and the arc-shaped section 243 are respectively provided with a plurality of vacuum adsorption holes 245, the vacuum adsorption holes 245 are uniformly distributed, each of the first plane section 241, the second plane section 242 and the arc-shaped section 243 corresponds to one cavity of the vacuum adsorption cavity 244, and the vacuum adsorption holes 245 on the first plane section 241, the second plane section 242 and the arc-shaped section 243 are communicated with the corresponding cavity of the vacuum adsorption cavity 244; the curved surface jig 24 is provided with a fixing part 25, the fixing part 25 is a vacuum generator, the vacuum generator is communicated with the vacuum adsorption cavity 244, and the vacuum generator is used for enabling the vacuum adsorption cavity 244 to generate negative pressure; the plane of the first plane section 241 is parallel to the top surface of the rack 1, the flexible screen is placed on the plane of the first plane section 241 of the curved surface jig 24, the flexible screen is fixed by adsorption through the vacuum adsorption holes 245 on the first plane section 241, and the accessory is adhered to one end of the flexible screen fixed by the first plane section 241 after the flexible screen is pre-bent.

Referring to fig. 1 and 5, the transfer mechanism 3 includes a support frame 31, a transfer lifting drive assembly 32 and a transfer rubber roller 33, the support frame 31 includes two vertical frames 311 and a transverse frame 312, the two vertical frames 311 are respectively connected to two ends of the transverse frame 312, one end of the vertical frame 311, which is far away from the transverse frame 312, is connected to the top surface of the rack 1, the two vertical frames 311 are located at two sides of the first moving drive assembly 21, and the transverse frame 312 is located above the first moving drive assembly 21; the transferring lifting driving assembly 32 comprises a transferring support 321, a transferring lifting module 322 and a transferring lifting cylinder 323, the transferring support 321 is installed on the top surface of the cross frame 312, the transferring lifting module 322 is a lead screw sliding table module, the lead screw sliding table module is installed on one side of the transferring support 321, the transferring lifting cylinder 323 is connected to a sliding seat of the lead screw sliding table module, the lead screw sliding table module drives the transferring lifting cylinder 323 to move along the direction vertical to the top surface of the rack 1, the transferring lifting cylinder 323 is located on one side of the cross frame 312 and is located right above the first moving driving assembly 21, and a piston rod of the transferring lifting cylinder 323 faces to the top surface of the rack 1; the transfer rubber roller 33 is connected to a piston rod of the transfer lifting cylinder 323 through a support, the transfer rubber roller 33 is rotatably connected to the support, the axis of the transfer rubber roller 33 is parallel to the arc surface of the arc surface section 243 and parallel to the axis of the output shaft of the motor, and the transfer rubber roller 33 is pressed against the surface of the flexible screen; the bottom surface of the cross frame 312 is provided with a cleaning device 8, and the cleaning device 8 is used for plasma cleaning and removing organic foreign matters on the surface of the flexible screen.

When the flexible screen is bent, firstly, one end of the flexible screen is adsorbed through the first plane section 241, the transfer lifting cylinder 323 drives the transfer rubber roller 33 to abut against the end part of the flexible screen on the first plane section 241, the first moving driving assembly 21 drives the first moving frame 22 to move, so that the transfer rubber roller 33 rolls on the flexible screen, and the transfer rubber roller 33 presses the flexible screen on the first plane section 241; when the side, connected with the arc-shaped section 243, of the first plane section 241 reaches the transfer rubber roll 33, at this time, the first moving frame 22 stops moving, meanwhile, the rotary driving assembly 23 drives the curved surface jig 24 to rotate, the distance between the surface of the transfer rubber roll 33 and the surface of the arc-shaped section 243 is kept constant in the rotating process, the flexible screen is pressed on the surface of the arc-shaped section 243 through the transfer rubber roll 33, and the bent flexible screen is adsorbed and fixed through the vacuum adsorption holes 245 in the arc-shaped section 243; when one side of the arc surface section 243 connected with the second plane section 242 reaches the transfer rubber roll 33, the curved surface jig 24 stops rotating at the moment, the second plane section 242 is flush with the top surface of the rack 1, the first moving driving assembly 21 drives the first moving frame 22 to continue moving, and the transfer rubber roll 33 presses the flexible screen on the second plane section 242 and is adsorbed and fixed by the vacuum adsorption hole 245, so that a bent flexible screen can be obtained; the first movable driving assembly 21 drives the first movable frame 22 to move to a position right below the cleaning device 8, the curved surface jig 24 is located right below the cleaning device 8 at the moment, the cleaning device 8 cleans the flexible screen through rotation of the curved surface jig 24, oil stains on the surface of the flexible screen are cleaned, an accessory is pasted on the cleaned flexible screen, the accessory is firstly pasted on one end, fixed by the first plane section 241, of the flexible screen, the curved surface jig 24 moves to a position below the transfer rubber roller 33, and the flexible screen is repeatedly pasted on the surface of the accessory flexible screen in a pre-bending mode; the stress of the flexible screen is dispersed to both ends of 0 degree and 180 degrees, and the stress generated when the flexible screen is bent for 180 degrees is reduced, so that the damage of the flexible screen can be reduced, the bending times of the flexible screen can be increased, and the problem of reducing the service life of the flexible screen is favorably solved.

Referring to fig. 1 and 6, the feeding mechanism 4 includes a second moving driving assembly 41, a second moving frame 42 and a first vacuum platform 43, the second moving driving assembly 41 may be a lead screw sliding table module, the lead screw sliding table module is fixedly connected to the top surface of the rack 1, the second moving frame 42 is connected to a sliding seat on the lead screw sliding table module, the lead screw sliding table module drives the second moving frame 42 to move along a linear direction, a moving direction of the second moving frame 42 is parallel to a moving direction of the first moving frame 22, and the second moving driving assembly 41 may be any structure capable of driving the second moving frame 42 to move along the linear direction; the first vacuum platform 43 is installed on the top surface of the second moving rack 42, the first vacuum platform 43 is parallel to the top surface of the rack 1, the first vacuum platform 43 is divided into a component feeding position 431 and a flexible screen feeding position 432, the component feeding position 431 and the flexible screen feeding position 432 are arranged side by side, and the component feeding position 431 is located on one side of the flexible screen feeding position 432 close to the first moving driving assembly 21.

Referring to fig. 7 and 8, two adjacent side edges of the flexible screen loading position 432 are provided with baffles 433, the two baffles 433 are driven by cylinders, the cylinders are mounted on the second moving frame 42, the pushing direction of the cylinders is obliquely pushed from bottom to top, the top surfaces of the baffles 433 are pushed from a position lower than the top surface of the first vacuum platform 43 to a position higher than the first vacuum platform 43, the side surfaces of the baffles 433 abut against the side surfaces of the first vacuum platform 43, and the two baffles 433 form an "L shape" which is used for performing primary positioning when the flexible screen is placed; a phase taking port 434 is arranged on one side of the accessory feeding position 431 away from the flexible screen feeding position 432, when the accessory is placed on the accessory feeding position 431, the side of the accessory is located right above the phase taking port 434, and the phase taking port 434 is used for the visual alignment mechanism 6 to shoot characteristic points of the side of the accessory.

Referring to fig. 1 and 9, the visual alignment mechanism 6 includes a mounting bracket 61, a third movement driving assembly 62, a first connecting seat 63, a second connecting seat 64, a CCD camera 65 and a light source 66, the mounting bracket 61 is fixedly connected to the top surface of the rack 1, and the mounting bracket 61 is located between the first movement driving assembly 21 and the second movement driving assembly 41; the third movable driving assembly 62 can be a screw rod sliding table module, the screw rod sliding table module is fixedly connected to the top surface of the mounting frame 61, the second connecting seat 64 is connected to a sliding seat on the screw rod sliding table module, the screw rod sliding table module drives the second connecting seat 64 to move along the linear direction, the moving direction of the second connecting seat 64 is parallel to the moving direction of the first movable frame 22, and the third movable driving assembly 62 can also be any structure capable of driving the second connecting seat 64 to move along the linear direction.

Referring to fig. 8 and 9, the first connecting seat 63 is fixedly connected to the top surface of the mounting frame 61, the first connecting seat 63 is arranged in the moving direction of the second connecting seat 64, two CCD cameras 65 are provided, one CCD camera 65 is arranged on the first connecting seat 63, the other CCD camera 65 is arranged on the second connecting seat 64, the shooting directions of the CCD cameras 65 are both vertically upward, and the two CCD cameras 65 are arranged side by side; two light sources 66 are provided, one of the light sources 66 is mounted on the first connecting seat 63 and is located on the top surface of the CCD camera 65, the other light source 66 is mounted on the second connecting seat 64 and is located on the top surface of the CCD camera 65, both the two light sources 66 are located right below the camera access 434, and the light sources 66 are used for supplementing light for products such as flexible screens and accessories, so that the CCD camera 65 can clearly identify characteristic points of the products for positioning; the third movement driving assembly 62 controls the CCD camera 65 to move to apply the recognition of the feature points of the products of different sizes.

Referring to fig. 1 and 10, the correcting mechanism 5 includes a fixed frame 51, a first horizontal movement driving assembly 52, a third movement frame 53, a second horizontal movement driving assembly 54, a fourth movement frame 55, a vertical lifting driving assembly 56, a fifth movement frame 57, a rotation correcting driving assembly 58, and a second vacuum platform 59; the fixed frame 51 is installed on the top surface of the frame 1, the frame 1 is located at the end parts of the first movable driving component 21 and the second movable driving component 41, and the length direction of the frame 1 is perpendicular to the movement direction of the first movable frame 22; the first horizontal movement driving assembly 52 is a screw sliding table module, and the screw sliding table module is installed on a side surface of the fixing frame 51 close to the first movement driving assembly 21.

Referring to fig. 10 and 11, the third moving frame 53 is connected to the slide of the screw slide module, the first horizontal movement driving assembly 52 drives the third moving frame 53 to move along a linear direction, and the moving direction of the third moving frame 53 is parallel to the top surface of the rack 1, and the moving direction of the third moving frame 53 is perpendicular to the moving direction of the first moving frame 22; the second horizontal movement driving assembly 54 is also a lead screw sliding table module, the lead screw sliding table module is installed on the third moving frame 53, the fourth moving frame 55 is connected to a sliding seat of the lead screw sliding table module, the second horizontal movement driving assembly 54 drives the fourth moving frame 55 to move along a linear direction, and the moving direction of the fourth moving frame 55 is perpendicular to the moving direction of the third moving frame 53.

Referring to fig. 10 and 11, the vertical lifting driving assembly 56 is also a lead screw sliding table module, the lead screw sliding table module is mounted on the fourth moving frame 55, the fifth moving frame 57 is connected to a sliding seat of the lead screw sliding table module, the vertical lifting driving assembly 56 drives the fifth moving frame 57 to move along the vertical direction, and the moving direction of the fifth moving frame 57 is perpendicular to the top surface of the rack 1; the rotation correction driving assembly 58 may be a DD motor, the DD motor is mounted on the fifth moving frame 57, the second vacuum platform 59 is connected to the DD motor, the second vacuum platform 59 is parallel to the top surface of the rack 1, and the second vacuum platform 59 is used for sequentially adsorbing the flexible screen and the fitting on the first vacuum platform 43 and attaching the flexible screen and the fitting to the curved surface of the curved surface jig 24.

When the flexible screen needs to be attached to the first plane section 241 of the curved surface jig 24, the first horizontal movement driving assembly 52 drives the second vacuum platform 59 to move to above the second movement driving assembly 41; the second movable driving assembly 41 drives the second movable frame 42 to move to the position below the second vacuum platform 59, the first vacuum platform 43 on the second movable frame 42 drives the flexible screen to move to the position below the second vacuum platform 59, the baffle 433 is driven by the air cylinder to descend to a position lower than the top surface of the first vacuum platform 43, the baffle 433 removes the obstruction of the second vacuum platform 59 on the second vacuum platform 433, the vertical lifting driving assembly 56 drives the second vacuum platform 59 to descend to adsorb the flexible screen, the adsorption of the first vacuum platform 43 on the flexible screen is removed, the vertical lifting driving assembly 56 lifts the second vacuum platform 59, the second vacuum platform 59 is moved to the position above the CCD camera 65, the CCD camera 65 shoots characteristic points of the flexible screen, the second vacuum platform 59 is driven to swing the flexible screen right by rotating the correction driving assembly 58, the flexible screen is adjusted by the movement of the third movable frame 53 and the fourth movable frame 55, the flexible screen is aligned to the set position of the curved surface jig 24, the vertical lifting driving assembly 56 drives the second vacuum platform 59 to descend, the first flat surface section of the flexible screen curved surface jig 241 of the flexible screen 24 is attached to the flexible screen adsorption jig 241, the flexible screen is fixed on the flexible adsorption hole 245, and the flexible screen is removed from the flexible adsorption jig 24.

When the accessories are required to be attached to the surface of the flexible screen, in order to enable the accessories sucked by the second vacuum platform 59 to be accurately attached to the surface of the flexible screen, the position of the second vacuum platform 59 attached to the flexible screen is set as an initial position; firstly, the vacuum platform 43 is moved to the position above the CCD camera 65, the camera port 434 is aligned with the CCD camera 65, the CCD camera 65 shoots the feature points of the accessory, the position of the accessory is recorded, and the position of the accessory is compared with the initial position to obtain a difference value; according to the difference value, the rotary correction driving assembly 58 drives the second vacuum platform 59 to compensate the difference value, the third moving frame 53 and the fourth moving frame 55 move to compensate the difference value, when the flexible screen moves in place, the vertical lifting driving assembly 56 drives the second vacuum platform 59 to adsorb the accessory, after the adsorption is completed, the second vacuum platform 59 rotates to the initial position, the third moving frame 53 and the fourth moving frame 55 return to the initial position, and finally the accessory is placed on the flexible screen by the second vacuum platform 59 and is adhered to one end, located on the first plane section 241, of the flexible screen, so that the accessory can be accurately adhered to the surface of the flexible screen.

Referring to fig. 1 and 12, the film tearing mechanism 7 includes a support plate 71, a roll 72 of easy-to-tear tape, a winding motor 73, a receiving plate 74, a first positioning optical fiber 75, a clamp lifting drive assembly 76, a clamping jaw cylinder 77, and an easy-to-tear tape clamp 78; the supporting plate 71 is fixedly connected to the top surface of the frame 1, the supporting plate 71 is located on one side of the second moving driving component 41 away from the first moving driving component 21, and the supporting plate 71 is located on one end of the second moving driving component 41 away from the fixed frame 51; the easy-to-tear adhesive material roll 72 is rotatably connected to one side face, far away from the fixed frame 51, of the supporting plate 71, the winding motor 73 is installed on one side face, close to the fixed frame 51, of the supporting plate 71, an output shaft of the winding motor 73 extends out of the side face, far away from the fixed frame 51, of the supporting plate 71, an output shaft of the winding motor 73 is used for winding the easy-to-tear adhesive material strips 9 drawn out of the easy-to-tear adhesive material roll 72, one side face, far away from the fixed frame 51, of the supporting plate 71 is rotatably connected with a plurality of tensioning rollers 711, the easy-to-tear adhesive material strips 9 are wound on the tensioning rollers 711, and the easy-to-tear adhesive material strips 9 are supported by the tensioning rollers 711.

Referring to fig. 12 and 13, a notch 712 is formed in the top of the supporting plate 71, the receiving plate 74 is connected to the top of the supporting plate 71 on the side close to the easily torn sticker roll 72, a first clamping opening 741 is formed in the receiving plate 74, the first clamping opening 741 is communicated with the notch 712, the easily torn sticker tape 9 is wound on the top surface of the receiving plate 74, and the easily torn sticker tape 9 carries the easily torn sticker to cross over the first clamping opening 741; a first lifting cylinder 713 is installed on one side face, close to the easy-to-tear adhesive tape roll 72, of the support plate 71, a piston rod of the first lifting cylinder 713 is connected with a connecting plate 714, the first lifting cylinder 713 drives the connecting plate 714 to move in the vertical direction, the top end of the connecting plate 714 is located on one side, far away from the support plate 71, of the bearing plate 74, a pressing plate 715 is fixedly connected to the top of the connecting plate 714, the pressing plate 715 abuts against one side face, far away from the bearing plate 74, of the easy-to-tear adhesive tape 9, and a second clamping opening 7151 for allowing the easy-to-tear adhesive clips 78 to enter is formed in the pressing plate 715; first positioning optical fiber 75 is installed in a side face that is close to easily tearing paste material roll 72 of backup pad 71, and first positioning optical fiber 75 is located the first below of pressing from both sides mouthful 741 of getting, and first positioning optical fiber 75 is used for the response to easily tear and pastes and control rolling motor 73 stop work, easily tears and pastes material area 9 stop motion, and first lift cylinder 713 drives the clamp plate 715 and descends simultaneously, and clamp plate 715 cooperates to accept board 74 and will easily tear and paste material area 9 and press from both sides tightly.

Referring to fig. 12 and 14, the clip elevation driving assembly 76 includes a second elevation cylinder 761, an elevation frame 762, and a rotating motor 763; the second lifting cylinder 761 is fixedly connected to one side surface of the second moving frame 42 close to the supporting plate 71, the lifting frame 762 is connected to a piston rod of the second lifting cylinder 761, the second lifting cylinder 761 drives the lifting frame 762 to lift along the vertical direction, the rotating motor 763 is installed on the lifting frame 762, the axis of an output shaft of the rotating motor 763 is perpendicular to the moving direction of the second moving frame 42, the output shaft of the rotating motor 763 is parallel to the top surface of the rack 1, and the rotating motor 763 is located on one side surface of the supporting plate 71 far away from the easy-tearing material roll 72; the clamping jaw cylinder 77 is arranged on an output shaft of the rotating motor 763, the output shaft of the rotating motor 763 is perpendicular to the shell of the clamping jaw cylinder 77, and clamping jaws of the clamping jaw cylinder 77 are arranged up and down; the easy-to-tear clip 78 comprises an upper clamping jaw 781 and a lower clamping jaw 782, and the upper clamping jaw 781 and the lower clamping jaw 782 are respectively connected to the upper clamping jaw and the lower clamping jaw of the clamping jaw air cylinder 77.

Referring to fig. 12 and 14, a connecting frame 79 is connected to the jaw air cylinder 77, a resisting air cylinder 791 is installed on the connecting frame 79, the resisting air cylinder 791 is located on one side, away from the jaw air cylinder 77, of the easy-to-tear clip 78, the resisting air cylinder 791 is arranged in an inclined manner, the end portion of a piston rod of the resisting air cylinder 791 is connected with a resisting head 792, the resisting air cylinder 791 drives the resisting head 792 to move in the inclined direction, the moving direction of the resisting head 792 is upward and is far away from one side, away from the easy-to-tear clip 78, and the resisting head 792 is located below the easy-to-tear clip clamped by the easy-to-tear clip 78; install second location optic fibre 793 on link 79, the incline direction of second location optic fibre 793 is the same with the direction of motion of butt head 792, and second location optic fibre 793 is used for the response accessory protective film whether to be torn the subsides of easily tearing and tear down.

The accessory is when transporting from the upper reaches producer, can be stained with the protecting film on the accessory, paste before the flexible screen surface at the accessory, need tear the protecting film at the accessory back, to tearing of protecting film paste on the protecting film surface through easily tearing the subsides, easily tear the subsides and pull the protecting film alright tear the protecting film with tearing the protecting film, easily tear the subsides and paste on easily tearing subsides material area 9, easily tear and paste half for paste section and with easily tear subsides material area 9 and bond, paste the section and be used for pasting the protecting film, easily tear and paste half for pressing from both sides the section and not bond with easily tearing subsides material area 9, it is used for easily tearing the clamp to press from both sides the section and gets to press from both sides the section and to paste the clamp 78 clamp.

The specific operation is that firstly the easy-to-tear adhesive tape 9 is pulled by the rolling motor 73, the easy-to-tear adhesive tape 9 is drawn out from the easy-to-tear adhesive roll 72, the easy-to-tear adhesive roll 72 moves on the top surface of the receiving plate 74, when the easy-to-tear adhesive tape adhered to the surface of the easy-to-tear adhesive tape 9 reaches the upper part of the first positioning optical fibers 75, the easy-to-tear adhesive tape is positioned below the easy-to-tear adhesive tape 9 at the moment, the easy-to-tear adhesive tape is sensed by the first positioning optical fibers 75, the rolling motor 73 stops rotating, the easy-to-tear adhesive tape 9 stops moving, meanwhile, the first lifting cylinder 713 drives the connecting plate 714 to descend, the connecting plate 714 drives the pressure plate 715 to be matched with the receiving plate 74 to clamp the easy-to-tear adhesive tape 9, and the position of the easy-to-tear adhesive tape is fixed at the moment; the second moving driving assembly 41 drives the second moving frame 42 to approach the supporting plate 71, so that the easy-to-tear sticker clip 78 passes through the notch 712 to extend out of the first clamping opening 741 and the second clamping opening 7151, the easy-to-tear sticker is located between the upper clamping jaw 781 and the lower clamping jaw 782, the clamping jaw cylinder 77 drives the easy-to-tear sticker clip 78 to clip the easy-to-tear sticker, and the second lifting cylinder 761 drives the easy-to-tear sticker clip 78 to descend to tear off the easy-to-tear sticker from the surface of the easy-to-tear sticker material strip 9.

When the easy-to-tear sticker is required to be pasted on the accessory protective film, the second moving driving assembly 41 drives the second moving frame 42 to drive the accessory and the easy-to-tear sticker to reach the position below the second vacuum platform 59, the accessory is sucked by the second vacuum platform 59, and the second vacuum platform 59 moves to the position above the easy-to-tear sticker; the rotating motor 763 drives the clamping jaw cylinder 77 to rotate, the clamping jaw cylinder 77 lifts the easy-to-tear-stick clamp 78, the easy-to-tear stick is lifted, the end face of the abutting head 792 is parallel to the accessory, the second vacuum platform 59 drives the accessory to descend, the protective film of the accessory is adhered to the easy-to-tear stick, the control abutting cylinder 791 drives the abutting head 792, the abutting head 792 abuts against and presses the easy-to-tear stick, the easy-to-tear stick is pressed on the accessory protective film, the easy-to-tear stick is adhered to the end portion of the accessory protective film, the second vacuum platform 59 ascends again, and the easy-to-tear stick sticks off the accessory protective film; if the accessory protective film is torn off by the easy-to-tear sticker without induction of the second positioning optical fiber 793, the easy-to-tear sticker is torn off again.

The implementation principle of the pre-bending equipment of the flexible screen in the embodiment of the application is as follows: the feeding mechanism 4 transmits the flexible screen to the correcting mechanism 5, the correcting mechanism 5 grabs the flexible screen, and then the flexible screen is photographed and positioned through the visual alignment mechanism 6, the correcting mechanism 5 adjusts the position of the flexible screen, so that the flexible screen can be placed at the set position of the curved surface jig 24, the flexible screen is firstly fixed through the vacuum adsorption hole 245 in the first plane section 241 of the curved surface jig 24, the curved surface jig 24 moves horizontally, the transfer rubber roller 33 presses the flexible screen, then the curved surface jig 24 rotates, the transfer rubber roller 33 presses the flexible screen on the surface of the cambered surface section 243, the flexible screen is adsorbed and fixed through the vacuum adsorption hole 245 in the cambered surface section 243, finally the curved surface jig 24 moves horizontally, the transfer rubber roller 33 presses the flexible screen on the second plane section 242, the flexible screen is adsorbed and fixed through the second plane section 242, the flexible screen is pre-bent, the operation of pre-bending of the flexible screen is repeated, and the accessory is pressed on the surface of the flexible screen; stress with the flexible screen to 0 and 180 both ends dispersion, reduce the stress that the flexible screen produced when buckling 180 to can reduce the damage of flexible screen, and then can increase the number of times of buckling of flexible screen, be favorable to improving the problem that flexible screen life reduces.

Example 2

The embodiment of the application discloses a pre-bending device of a flexible screen, the difference with embodiment 1 lies in, refer to fig. 2 and fig. 3, the output shaft of the rotary driving component 23 does not coincide with the centre of a circle of the arc section 243, in order to ensure that the transcription rubber roll 33 maintains a very constant pressure to extrude the flexible screen, the distance between the transcription rubber roll 33 and the arc section 243 needs to be kept constant, the transcription cylinder drives the transcription rubber roll 33 to abut against the surface of the flexible screen, the transcription cylinder is driven to lift through the transcription lifting module 322, so as to adjust the height of the transcription rubber roll 33, and the vertical distance between the transcription rubber roll 33 and the arc of the arc section 243 is kept constant.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. A pre-bending apparatus for a flexible screen, comprising:

a frame (1);

the pre-bending mechanism (2) is mounted on the rack (1), the pre-bending mechanism (2) is used for bending the flexible screen and is arranged, the pre-bending mechanism (2) comprises a first moving driving assembly (21), a first moving frame (22), a rotating driving assembly (23) and a curved surface jig (24), the first moving driving assembly (21) is arranged on the rack (1), the first moving driving assembly (21) is used for driving the first moving frame (22) to move, the rotating driving assembly (23) is mounted on the first moving frame (22), the rotating driving assembly (23) is used for driving the curved surface jig (24) to rotate, the flexible screen is attached to the curved surface of the curved surface jig (24), and a fixing piece (25) used for fixing the flexible screen is arranged on the curved surface jig (24);

transfer mechanism (3), install in on frame (1), transfer mechanism (3) are used for following flexible screen the curved surface of curved surface tool (24) is buckled, transfer mechanism (3) are including support frame (31), transfer lift drive subassembly (32) and transfer rubber roll (33), support frame (31) install in on frame (1), transfer lift drive subassembly (32) install in on support frame (31), transfer lift drive subassembly (32) are used for the drive transfer rubber roll (33) go up and down, transfer rubber roll (33) are on a parallel with the curved surface of curved surface tool (24), transfer rubber roll (33) support and press in the flexible screen one side of keeping away from curved surface tool (24), work as curved surface tool (24) to transfer rubber roll (33) motion, transfer lift drive subassembly (32) drive transfer rubber roll (33) support and press in the side of flexible screen, rotation drive subassembly (23) drive curved surface tool (24) rotate, transfer lift drive subassembly (33) will be in the flexible screen the curved surface of laminating rubber roll (24).

2. A pre-bending device for a flexible screen according to claim 1, wherein: the curved surface of the curved surface jig (24) comprises a first plane section (241), a second plane section (242) and an arc surface section (243), the arc surface section (243) is located between the first plane section (241) and the second plane section (242), one side edge of the arc surface section (243) is connected with the side edge of the first plane section (241), and the other side edge of the arc surface section (243) is connected with the side edge of the second plane section (242); the transfer rubber roller (33) sequentially presses the flexible screen along the first plane section (241), the cambered surface section (243) and the second plane section (242), and the flexible screen is sequentially attached along the first plane section (241), the cambered surface section (243) and the second plane section (242).

3. A pre-bending apparatus for a flexible screen according to claim 1, wherein: a vacuum adsorption cavity (244) is arranged inside the curved surface jig (24), a plurality of vacuum adsorption holes (245) are arranged along the curved surface of the curved surface jig (24), and the vacuum adsorption cavity (244) is communicated with the vacuum adsorption holes (245); fixing piece (25) are vacuum generator, vacuum generator communicate in vacuum adsorbs chamber (244), vacuum generator is used for making vacuum adsorbs chamber (244) produce the negative pressure and adsorbs flexible screen.

4. A pre-bending apparatus for a flexible screen according to claim 1, further comprising:

the feeding mechanism (4) is installed on the rack (1), the feeding mechanism (4) is used for conveying the flexible screen and accessories to the curved surface jig (24), the feeding mechanism (4) comprises a second moving driving component (41), a second moving frame (42) and a first vacuum platform (43), the second moving driving component (41) is arranged on the rack (1), the second moving driving component (41) is used for driving the second moving frame (42) to move, the first vacuum platform (43) is installed on the second moving frame (42), the first vacuum platform (43) is used for adsorbing the flexible screen and the accessories, and the second moving driving component (41) drives the second moving frame (42) to move to the curved surface jig (24);

the correcting mechanism (5) is installed on the rack (1), the correcting mechanism (5) is used for sequentially grabbing the flexible screen and accessories on the first vacuum platform (43), correcting and attaching the flexible screen and accessories on a curved surface of a curved surface jig (24), the correcting mechanism (5) comprises a fixed frame (51), a first horizontal movement driving assembly (52), a third moving frame (53), a second horizontal movement driving assembly (54), a fourth moving frame (55), a vertical lifting driving assembly (56), a fifth moving frame (57), a rotation correction driving assembly (58) and a second vacuum platform (59), the fixed frame (51) is installed on the rack (1), the first horizontal movement driving assembly (52) is installed on the fixed frame (51), the first horizontal movement driving assembly (52) is used for driving the third moving frame (53) to move, the second horizontal movement driving assembly (54) is installed on the third moving frame (53), the second horizontal movement driving assembly (54) is used for driving the fourth moving frame (55) to move, the third horizontal movement driving assembly (54) is installed on the vertical movement frame (55), and the fourth movement driving assembly (55) is installed on the vertical movement frame (55), the rotary correction driving assembly (58) is installed on the fifth moving frame (57), the rotary correction driving assembly (58) is used for driving the second vacuum platform (59) to horizontally rotate, the second vacuum platform (59) is used for adsorbing the flexible screen on the first vacuum platform (43) and attaching the flexible screen to the curved surface of the curved surface jig (24), and the second vacuum platform (59) is used for adsorbing accessories on the first vacuum platform (43) and attaching the accessories to the flexible screen;

visual alignment mechanism (6), install in on frame (1), visual alignment mechanism (6) are used for shooting the characteristic point of flexible screen and accessory and compare to the position of flexible screen and accessory is fixed a position, and rethread correcting mechanism (5) is rectified the position of flexible screen and accessory.

5. The pre-bending apparatus of a flexible screen according to claim 4, further comprising:

the film tearing mechanism (7) is installed on the rack (1), the film tearing mechanism (7) is used for tearing a protective film of an accessory, and the film tearing mechanism (7) comprises a supporting plate (71), an easy-to-tear adhesive material roll (72), a winding motor (73), a bearing plate (74), a first positioning optical fiber (75), a clamp lifting driving assembly (76), a clamping jaw air cylinder (77) and an easy-to-tear adhesive clamp (78); the support plate (71) is mounted on the rack (1), the easy-to-tear adhesive tape roll (72) rotates on one side face of the support plate (71), the winding motor (73) is mounted on the other side of the support plate (71), an output shaft of the winding motor (73) penetrates through the support plate (71), the winding motor (73) is used for collecting the easy-to-tear adhesive tape (9) of the easy-to-tear adhesive tape roll (72), one side face, close to the easy-to-tear adhesive tape roll (72), of the support plate (71) is rotatably connected with a plurality of tensioning rollers (711), and the tensioning rollers (711) are used for supporting the easy-to-tear adhesive tape (9); a gap (712) is formed in the top of the supporting plate (71), the receiving plate (74) is mounted on the top of one side face, close to the easily torn adhesive tape roll (72), of the supporting plate (71), a first clamping opening (741) is formed in the receiving plate (74), the first clamping opening (741) is communicated with the gap (712), and the easily torn adhesive tape roll (9) is wound on the top face of the receiving plate (74); the first positioning optical fiber (75) is arranged on the side surface of the supporting plate (71) and is positioned below the first clamping opening (741), and the first positioning optical fiber (75) is used for inducing the easy-to-tear tape and controlling the rolling motor (73) to stop rotating; the clamp lifting driving assembly (76) is mounted on the second moving frame (42), and the clamp lifting driving assembly (76) is used for driving the clamping jaw air cylinder (77) to lift; the easy-to-tear paste clamp (78) is connected to a clamping jaw of the clamping jaw cylinder (77), the second moving driving component (41) drives the easy-to-tear paste clamp (78) to extend into the first clamping opening (741), and the clamping jaw cylinder (77) drives the easy-to-tear paste clamp (78) to clamp the easy-to-tear paste; easily tear easily that pastes clip (78) clamp was got and remove frame (42) along with prime number second and move extremely during aligning gear (5) below, vertical lift drive subassembly (56) drive second vacuum platform (59) descend with absorbent accessory bottom surface protecting film and easily tear and paste looks adhesion, vertical lift drive subassembly (56) resets, easily tears the protecting film of pasting with the accessory bottom surface and tears.

6. A pre-bending device for a flexible screen according to claim 5, wherein: backup pad (71) are close to easily tear a side of pasting material book (72) and install first lift cylinder (713), the piston rod of first lift cylinder (713) is connected with connecting plate (714), the top of connecting plate (714) is connected with clamp plate (715), clamp plate (715) are supported and are pressed and are kept away from in easily tearing a material area (9) accept a side of board (74), it presss from both sides mouth (7151) to be provided with the second that supplies to easily tear a clip (78) entering on clamp plate (715), easily tear a subsides and control rolling motor (73) stall is sensed in first positioning optical fiber (75), simultaneously first lift cylinder (713) drive clamp plate (715) down cooperation accept board (74) will easily tear a material area (9) and press from both sides tightly.

7. A pre-bending device for a flexible screen according to claim 5, wherein: the clip lifting driving assembly (76) comprises a second lifting cylinder (761), a lifting frame (762) and a rotating motor (763), the second lifting cylinder (761) is installed on a second movable frame (42), the lifting frame (762) is connected to a piston rod of the second lifting cylinder (761), the rotating motor (763) is installed on the lifting frame (762), a clamping jaw cylinder (77) is installed on an output shaft of the rotating motor (763), and the rotating motor (763) is used for driving the easy-to-tear paste to rotate around the output shaft of the rotating motor (763).

8. A pre-bending device for a flexible screen according to claim 5, wherein: install link (79) on clamping jaw cylinder (77), install on link (79) and support tight cylinder (791), support the tailpiece of the piston rod portion who tightly cylinder (791) and install butt head (792), butt head (792) are located and easily tear the below of pasting the section, it pastes on the protecting film of accessory to support tight cylinder (791) drive butt head (792) with the section of pasting that easily tears.

9. A pre-bending device for a flexible screen according to claim 8, wherein: install second location optic fibre (793) on link (79), second location optic fibre (793) are used for the response easily to tear and paste the protecting film of whether tearing the accessory down.

10. A pre-bending device for a flexible screen according to claim 1, wherein: install cleaning device (8) on support frame (31), curved surface tool (24) are located cleaning device (8)'s below, cleaning device (8) are used for the foreign matter on the clean flexible screen.