CN114291378B

CN114291378B - Film tearing and laminating device for display screen production, display screen production equipment and film tearing and laminating method

Info

Publication number: CN114291378B
Application number: CN202210218855.6A
Authority: CN
Inventors: 不公告发明人
Original assignee: Gaoshi Technology Suzhou Co ltd
Current assignee: Gaoshi Technology Suzhou Co ltd
Priority date: 2022-03-08
Filing date: 2022-03-08
Publication date: 2022-07-05
Anticipated expiration: 2042-03-08
Also published as: CN114291378A

Abstract

The invention relates to a film tearing and covering device for display screen production, display screen production equipment and a film tearing and covering method, wherein the film tearing and covering device comprises a winding drum which can be rotationally assembled on a fixed mounting rack in a forward and reverse reciprocating manner and is used for forward winding a protective film on a display screen so as to enable the film tearing device to perform film tearing operation and reverse unwinding so as to enable the film tearing device to perform film covering operation; the winding drum is provided with an edge-rising adhesive structure which is used for adhering the corresponding end of the protective film during the film tearing operation of the film tearing device so as to uncover the protective film when the protective film rotates along with the positive rotation of the winding drum; the periphery of the winding drum is distributed with a plurality of vacuum adsorption holes used for being communicated with the vacuumizing mechanism, and the vacuum adsorption holes are used for adsorbing and fixing the protective film wound on the winding drum during vacuumizing operation of the vacuumizing mechanism. In the whole film tearing operation process, the protective film is uncovered by the edge-covering adhesive structure, and the protective film which is uncovered and wound on the winding drum can be fixed on the winding drum in an adsorption manner through the vacuum adsorption holes, so that the film tearing device is conveniently and reliably realized in practical application scenes.

Description

Film tearing and laminating device for display screen production, display screen production equipment and film tearing and laminating method

Technical Field

The present invention relates generally to the field of display screen production. More specifically, the invention relates to a film tearing and laminating device for display screen production, display screen production equipment and a film tearing and laminating method.

Background

With the development of liquid crystal technology, liquid crystal panels are rapidly becoming the leading role of display markets with their many advantages, and liquid crystal panels are being used as display screens in many fields such as manual operation platforms of mobile phones, portable game machines, and industrial equipment.

In the production process of the display screen, the liquid crystal panel can complete the manufacturing process flow on a production line, and the whole manufacturing process flow of the display screen relates to a plurality of different processing procedures and circulation operation among the different procedures. In the case of liquid crystal panels, in order to improve the yield, a protective film is generally reserved on the liquid crystal panel, and the surface of the liquid crystal panel is protected by the protective film to prevent accidental damage such as scratches. However, there are some processes in the liquid crystal panel manufacturing process flow, such as a panel inspection process, in which a plurality of cameras are used to photograph the liquid crystal panel, the photographed result is inspected, and whether the liquid crystal panel itself has a defect affecting display or other defects is determined accordingly. Before detecting, need tear the protection film, avoid the protection film to influence the testing result of shooing. Therefore, the film tearing and covering operation is inevitably required in the whole display screen manufacturing process flow.

The invention discloses a film tearing and sticking device and a film tearing and sticking method in patent application with application publication number CN 107283986A. When carrying out the dyestripping operation, make the circumference surface of roller and the protection film contact on the screen, evacuation mechanism passes through the through-hole absorption protection film on the roller surface to through the roller rotation and the relative movement of screen and cylinder, make the roller convolute on the drum surface of roller, in order to realize the dyestripping operation. When the film pasting operation is carried out, the roller adsorbed with the protective film is moved, one end of the protective film is aligned with one end of the screen, the protective film is in surface contact with the screen, the vacuumizing mechanism is closed, and the protective film on the roller is attached to the surface of the screen through the rotation of the roller and the relative movement of the screen and the roller, so that the film pasting operation is realized.

Among the above-mentioned dyestripping pad pasting device, when the screen area protection film removed when targetting in place, evacuation mechanism evacuation operation was fixed on the roller in order to adsorb the protection film to the rotation of cooperation roller and the relative movement of roller and screen, and then realized the dyestripping operation. The scheme of adsorbing the protective film only by the vacuumizing mechanism is not easy to apply to the actual production process. In the actual use process, if the electrostatic adsorption force of the protective film and the screen is large, the vacuumizing adsorption force is small, and the situation that the film cannot be torn easily occurs. If the vacuum-pumping adsorption force is too large, the protective film and the screen are easy to be brought together during the vacuum-pumping operation. Therefore, the scheme of tearing the film by the vacuum-pumping mechanism is difficult to be applied to the actual film tearing operation, and the development and design of a film tearing and covering device which is convenient to apply in the actual production process becomes a problem to be solved by the technical staff in the field.

Disclosure of Invention

In view of the above-mentioned problems and drawbacks, the present invention is directed to provide a film tearing and covering device for producing a display screen, which is convenient for practical application, so as to solve the technical problem of poor quality stability of the display screen caused by manual film tearing or covering operation in the prior art. Furthermore, the invention also provides display screen production equipment using the tearing and laminating device and a tearing and laminating method using the display screen production equipment.

Specifically, the first aspect of the present invention provides the following technical solutions: display screen production is with tearing tectorial membrane device includes: the fixed mounting rack is used for being fixedly mounted on the corresponding support foundation; the winding drum is assembled on the fixed mounting frame in a forward and reverse reciprocating rotating mode and used for winding the protective film on the display screen in a forward rotating mode so as to enable the film tearing device to conduct film tearing operation and unwinding in a reverse rotating mode so as to enable the film tearing device to conduct film laminating operation; the winding drum is provided with an edge adhesive bonding mechanism which is used for bonding the corresponding end of the protective film during film tearing operation of the film tearing and covering device so as to uncover the protective film when the edge adhesive bonding mechanism rotates along with the winding drum in a positive direction; the periphery of the winding drum is distributed with a plurality of vacuum adsorption holes used for being communicated with the vacuumizing mechanism, and the vacuum adsorption holes are used for adsorbing and fixing the protective film wound on the winding drum during vacuumizing operation of the vacuumizing mechanism.

As a further improvement, the edge-gluing structures extend along the axial direction of the winding drum or are distributed at intervals along the axial direction of the winding drum.

As a further improvement, the edge-starting glue bonding structure is an edge-starting glue strip extending along the axial direction of the winding drum or a plurality of edge-starting glue blocks distributed at intervals along the axial direction of the winding drum.

As a further improvement, the edge-starting rubber strip or the edge-starting rubber block is fixedly arranged on the peripheral surface of the winding drum.

As a further improvement, the outer peripheral surface of the winding drum is provided with a mounting groove extending along the axial direction of the winding drum, the mounting groove is concavely provided with an adhesive tape mounting rack, and the edge-raising adhesive tape is correspondingly fixedly arranged on the adhesive tape mounting rack so as to be fixedly arranged on the outer peripheral surface of the winding drum.

As a further improvement, a film laminating press roller is arranged on the fixed mounting frame in a liftable manner, the film laminating press roller is provided with a jacking working position on the lifting stroke, and the film laminating press roller at the jacking working position is used for pressing the protective film to the display screen when the film laminating operation of the film laminating device is torn, so that the protective film and the edge adhesive bonding structure are forced to be separated when the film laminating device is torn to finish the film laminating operation.

As a further improvement, the fixed mounting frame comprises a base frame, a reel mounting frame is arranged on the base frame in a liftable mode, the reel mounting frame is rotatably arranged on the reel mounting frame, and the reel mounting frame is provided with a working position for enabling the reel to descend to be close to the display screen on the lifting stroke of the reel mounting frame so that the film tearing and laminating device can conduct film tearing and laminating operations.

As a further improvement, a lifting driving mechanism is mounted on the base frame, the lifting driving mechanism drives the reel mounting frame to lift through an elastic lifting structure, the upper end of the elastic lifting structure is connected with a lifting output end of the lifting driving mechanism, and the lower end of the elastic lifting structure is connected with the reel mounting frame so as to apply an upward lifting acting force to the reel mounting frame.

As a further improvement, the reel mounting rack is arranged on the base frame in a vertically liftable and lowerable manner.

As a further improvement, the elastic pulling structure is a pulling cylinder structure or a spring pulling piece.

As a further improvement, a film laminating press roller is arranged on the winding drum mounting rack in a liftable manner and extends in parallel with the winding drum, the film laminating press roller is provided with a jacking working position on the lifting stroke, and the film laminating press roller at the jacking working position is used for pressing the protective film to the display screen when the film laminating operation of the film laminating device is torn so as to force the protective film to be separated from the edge-starting adhesive bonding structure when the film laminating operation of the film laminating device is torn.

As a further improvement, a compression roller mounting frame is arranged on the winding drum mounting frame in a liftable mode along the vertical direction, the film coating compression roller is mounted on the compression roller mounting frame, and a compression roller lifting mechanism used for driving the compression roller mounting frame to lift is arranged between the winding drum mounting frame and the compression roller mounting frame.

As a further improvement, the winding drum mounting frame is provided with two side compression roller guide parts in a guiding and moving mode along the vertical direction, the two side compression roller guide parts are fixedly assembled with the compression roller mounting frame, the two side compression roller guide parts are located on the axial direction of the film laminating compression roller on two symmetrical sides of the compression roller lifting mechanism, and the two side compression roller guide parts are fixedly assembled together through a synchronous connecting piece.

As a further improvement, a servo motor is mounted on the mounting frame and drives the winding drum to rotate in a reciprocating mode through a synchronous belt transmission mechanism.

As a further improvement, the film tearing and covering device further comprises a vacuumizing mechanism, wherein an air channel is arranged on the winding drum, and the vacuumizing mechanism is communicated with the vacuum adsorption hole through the air channel.

The second aspect of the invention provides the following technical scheme: display screen production facility, it includes: in any of the above mentioned schemes of the tearing and laminating device for the display screen, the vacuum adsorption hole on the winding drum of the tearing and laminating device is communicated with a vacuum pumping mechanism; and the mobile platform is provided with a mounting position for supporting and placing the display screen, and can move relative to the tearing and laminating device in a forward and reverse reciprocating manner so as to be matched with the winding drum in forward and reverse reciprocating rotation to enable the tearing and laminating device to tear and laminate the film.

When the film tearing device tears a film, the edge adhesive bonding mechanism on the winding drum is used for adhering a first end of a protective film on a display screen, the winding drum drives the edge adhesive bonding mechanism to rotate forwards to uncover the protective film, the display screen is driven by the moving platform to move forwards relative to the winding drum in the forward rotation process of the winding drum, so that the winding drum rotates forwards to roll up the protective film to tear the protective film from the display screen until a second end of the protective film on the film is separated from the display screen, and the vacuumizing mechanism performs vacuumizing operation to adsorb and fix the protective film rolled on the winding drum; when tearing tectorial membrane device tectorial membrane operation, when the corresponding position on second end and the display screen on the membrane of the protection film of coiling on the reel corresponds, the broken vacuum operation of evacuation mechanism is in order to release the protection film, and the epimembranal second end of protection film adsorbs on the display screen through static, unreels by moving platform drive display screen relative reel antiport and reel antiport, by display screen static adsorption protection film in order to cover the protection film again on locating the display screen.

The film tearing and covering method provided by the third aspect of the invention uses the display screen production equipment mentioned above to carry out film tearing and covering operation, when the film tearing device of the display screen production equipment carries out film tearing operation, the edge adhesive structure on the winding drum is adhered to the first end of the protective film on the display screen, the winding drum drives the edge adhesive structure to rotate forwards to uncover the protective film, the display screen is driven by the moving platform to move forwards relative to the winding drum in the forward rotation process of the winding drum, so that the protective film is torn from the display screen by the forward rotation winding of the winding drum until the second end of the protective film is separated from the display screen, and the vacuumizing mechanism carries out vacuumizing operation to adsorb and fix the protective film wound on the winding drum; when tearing tectorial membrane device tectorial membrane operation at display screen production facility, when the epimembranal second end of the protection film of coiling on the reel corresponds with the relevant position on the display screen, the broken vacuum operation of evacuation mechanism is in order to release the protection film, and the epimembranal second end of protection film adsorbs on the display screen through static, by moving platform drive display screen relative reel antiport and reel antiport unreel, adsorb the protection film by display screen static in order to locate the display screen with the tectorial membrane.

The beneficial effects are that: in the film tearing and covering device for display screen production, the edge-lifting adhesive mechanism capable of rotating along with the winding drum is arranged on the winding drum, the edge-lifting adhesive mechanism is used for adhering the corresponding end of the protective film during film tearing operation, and the edge-lifting adhesive mechanism rotates along with the winding drum to uncover the protective film, so that the protective film is conveniently torn off from the display screen by winding the protective film by the winding drum when the winding drum rotates in the forward direction and the mobile platform drives the display screen to move in the forward direction relative to the winding drum, and the protective film is adsorbed and fixed by using the vacuum adsorption holes, and reliable film tearing operation is realized. And when the film is coated, the vacuumizing mechanism breaks vacuum operation, the winding drum reversely unwinds and is matched with the moving platform to drive the display screen to reversely move relative to the winding drum, and the display screen electrostatically adsorbs the protective film to re-cover the protective film on the display screen, so that reliable film coating operation is realized. When tearing tectorial membrane device operation dyestripping operation, the reel utilizes the limit adhesive structure to take off the protection film when corotation, can glue the connection on the reel with the protection film simultaneously, makes things convenient for reel corotation rolling protection film to tear the protection film on the display screen reliably and steadily, and the fixed protection film is adsorbed in the cooperation vacuum adsorption hole, thereby can fix the protection film on the reel flexibly reliably, on guaranteeing effectively fixed basis, can effectively avoid damaging the reel. At the positive and negative reciprocating rotation in-process of reel, the relative positive and negative reciprocating motion of reel of cooperation moving platform drive display screen conveniently realizes the operation of dyestripping tectorial membrane, effectively solves the tradition and needs artifical the participation to tear the membrane or the tectorial membrane operation leads to the unstable problem of dyestripping tectorial membrane quality. In addition, the protective film is accurately wound on the winding drum, so that the protective film is not easily damaged, the starting position of the film covering is conveniently controlled, the protective film can be coated on the display screen again by referring to the original position, the repeated utilization of the protective film is realized, the manufacturing cost of the product is effectively saved, and the film covering quality of the product is improved.

In the whole film tearing operation process, the protective film is mainly uncovered by the edge adhesive bonding mechanism, the vacuum adsorption holes are formed in the way that the protective film which is uncovered and wound on the winding drum is adsorbed and fixed on the winding drum, the precision requirement on the size of the vacuum adsorption acting force applied by the vacuumizing mechanism is low, and the film tearing operation process is convenient to reliably realize in practical application scenes.

In some embodiments, the edge-starting glue bonding structure is an edge-starting glue strip or a plurality of edge-starting glue blocks arranged on the outer peripheral surface of the winding drum, the edge-starting glue bonding structure is convenient to install and arrange on the basis that the protective film is lifted by normal gluing, and the protective film can be wound on the winding drum conveniently under the gluing connection of the edge-starting glue bonding structure.

In some embodiments, a film laminating press roller is arranged corresponding to the winding drum, when the film laminating operation is performed, the film laminating press roller can be used for pressing a protective film which is covered on the display screen, the problem that the protective film takes up the display screen due to the fact that the protective film is adhered to the protective film by the edge adhesive mechanism when the film laminating operation is about to be completed is avoided, the protective film can be automatically separated from the edge adhesive mechanism when the film laminating operation is about to be completed, and therefore the original film laminating position of the display screen covered by the protective film can be effectively improved.

In other embodiments, the lifting driving mechanism drives the reel mounting rack to lift through the elastic lifting structure, and the elastic lifting structure can apply upward elastic lifting acting force to the reel mounting rack so as to counteract or weaken the pressing effect of the reel mounting rack and the reel gravity on the display screen. At this moment, even if the reel is pushed down excessively, when the display screen exerts the effort of reverse top to the reel, utilize to carry and draw cylinder structure or spring to carry the floating performance of piece self for the reel can upwards lift up a little, effectively avoids the reel to crush damage the display screen.

Drawings

The above and other objects, features and advantages of exemplary embodiments of the present disclosure will become readily apparent from the following detailed description read in conjunction with the accompanying drawings. Several embodiments of the present disclosure are illustrated by way of example, and not by way of limitation, in the figures of the accompanying drawings and in which like reference numerals refer to similar or corresponding parts and in which:

FIG. 1 is a schematic structural diagram of an embodiment of a display screen production apparatus provided in the present invention;

FIG. 2 is a schematic structural diagram of a film tearing and covering device for producing the display screen in FIG. 1;

FIG. 3 is a rear angled perspective view of the tear film device of FIG. 2;

FIG. 4 is a side elevational view of the tear film device of FIG. 2;

FIG. 5 is a schematic view showing the structural connection between the screw motor and the lifting cylinder in FIG. 2;

FIG. 6 is a side view of the spool of FIG. 2;

FIG. 7 is a sectional view taken along line A-A of FIG. 6;

fig. 8 is a perspective view of the spool of fig. 6.

Description of reference numerals:

1. a screw motor; 2. a base frame; 201. a fixed base; 202. a fixing plate; 3. a reel mounting bracket; 31. a lateral support body; 4. a reel; 41. a rotating shaft; 42. a vacuum adsorption hole; 43. a cavity; 44. mounting grooves; 45. a rubber strip mounting rack; 5. a raised edge rubber strip; 6. a guide cylinder; 7. a spool guide bar; 8. a first synchronous connecting plate; 9. an output screw rod; 10. an intermediate connecting member; 11. a pull cylinder structure; 12. a first precision pressure regulating valve; 13. a second precision pressure regulating valve; 14. a displacement sensor; 15. a servo motor; 16. a speed reducer; 17. a synchronous belt; 18. a driving wheel; 19. a driven wheel; 20. a rotary joint; 21. a compression roller mounting rack; 22. laminating press rollers; 23. a lifting cylinder; 24. a second synchronous connecting plate; 25. a press roller guide; 100. a track; 101. a drag chain structure; 200. a film tearing and covering device; 300. a mobile platform; 400. a display screen.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it should be understood by those skilled in the art that the embodiments described below are some embodiments of the present disclosure, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the production process flow of the display screen, most of working procedures and the circulation process among different working procedures need to keep the protective film on the display screen, so that the display screen can be effectively protected, and the influence on the yield caused by accidental scratching is reduced. However, in a separate process, for example, in a display screen quality inspection process, the protective film needs to be torn off to avoid the influence of the protective film on the measurement result, and after the inspection is completed, the protective film needs to be covered on the display screen again to form good protection. In such processes requiring film tearing and laminating operations, manual work is mostly involved at present, such as manual film tearing or manual film laminating, which affects production efficiency. Moreover, the protective film is easily torn or cannot be matched with the original installation position, so that a new protective film needs to be replaced, and the cost is additionally increased.

In view of the above mentioned problems, the present invention provides a display screen production apparatus, wherein when the moving platform carries the display screen to move forward relative to the winding drum, the edge-adhesive-applying mechanism and the vacuum-pumping mechanism can wind the protective film on the display screen onto the winding drum, so as to realize automatic film tearing operation. When the mobile platform drives the display screen to move reversely relative to the winding drum, the protective film on the winding drum can be coated on the display screen again by using the winding drum, the vacuumizing mechanism and the film coating compression roller, so that the automatic film tearing operation is realized.

According to the display screen production equipment provided by the invention, in the process of tearing off the protective film, automatic film tearing and covering can be conveniently realized, the problem of unstable quality when manual film tearing or manual film covering is required in the prior art can be effectively solved, the quality stability of the film covering can be ensured, and the production efficiency can be effectively improved.

Having described the general principles of the invention, various non-limiting embodiments of the invention are described in detail below. Any number of elements in the drawings are by way of example and not by way of limitation, and any nomenclature is used for distinction only and not by way of limitation.

The principles and spirit of the present invention are explained in detail below with reference to several representative embodiments of the invention.

Embodiment 1 of the display screen production apparatus provided by the present invention:

in this embodiment, the display screen production apparatus is configured as shown in fig. 1 to 8, and mainly includes a moving platform 300 and a tear film device 200 for cooperating with each other. The moving platform 300 is movably mounted on the fixed rail 100 and reciprocally moves along the rail 100. The film tearing and covering device 200 is arranged at the corresponding end position of the track 100 and can be matched with the mobile platform 300 for use so as to realize automatic film tearing and covering operation. The film tearing device 200 can be fixedly installed on the corresponding supporting base to be matched with the moving platform for use.

As shown in fig. 1, the movable platform 300 is guided and movably mounted on the fixed track 100, and the movable platform 300 is driven by a corresponding electric driving device to reciprocate along the linear track 100, and the electric driving device may employ a servo motor and a transmission mechanism such as a rack-and-pinion mechanism or a lead screw nut mechanism to drive the movable platform 300 to reciprocate. In order to facilitate the operation of the electric driving device, a drag chain structure 101 is disposed beside the track 100 to normally supply power to the electric driving device.

Fixed laying has born the tool on moving platform 300, bears the tool and is used for supporting and places display screen 400, conveniently tears the membrane operation and the tectorial membrane operation by tearing tectorial membrane device 200, also makes things convenient for moving platform 300 drive display screen 400 to next process step removal.

For example, the mobile platform may be used to carry the carrying fixture and the display screen 400 to move backward to the photographing detection device, and a plurality of cameras preset in the photographing detection device perform photographing detection on the display screen 400, so as to determine whether the display screen 400 itself has a defect affecting display or other defects according to the photographing structure.

To avoid the influence of the protective film on the display screen on the detection, the tearing device 200 may be used to tear the protective film on the display screen 400 before the mobile platform 300 carries the display screen 400 to move backwards.

As shown in fig. 1 to 7, the film tearing and laminating device 200 includes a fixed mounting frame, on which a winding drum 4 is disposed, the winding drum 4 rotates forward to wind the protective film on the display screen 400 on itself, and the winding drum 4 rotates backward to release the protective film, so as to facilitate the protective film to be re-covered on the display screen 400. Set up the limit on reel 4 and glue and construct and vacuum adsorption hole, play the limit and glue and construct and be used for taking off the protection film to make things convenient for reel 4 rolling winding protection film, the vacuum adsorption hole is used for connecting evacuation mechanism, when evacuation mechanism evacuation operation, conveniently utilizes the vacuum adsorption hole to adsorb the protection film and fix on reel 4. In addition, still dispose tectorial membrane compression roller 22 corresponding reel 4, when tearing tectorial membrane device 200 and carrying out the tectorial membrane operation, usable tectorial membrane compression roller 22 is pressed the protection film to display screen 400, conveniently makes protection film and roller break away from, and then can effectively improve tectorial membrane operation quality.

During the assembly, tear the fixed mounting bracket of tectorial membrane device 200 and be used for fixed mounting on corresponding support basis, for example at factory building ground basis on the fixed support post that sets up, this support post is used for fixed mounting to tear the fixed mounting bracket of tectorial membrane device as supporting the basis. The supporting foundation can be designed into a fixed supporting foundation according to actual needs, and can also be designed into a supporting foundation capable of ascending and descending.

When tearing tectorial membrane device 200 dyestripping operation, when the edge glue bonds and constructs the epimembranal first end of the protection film on the sticky display screen 400, reel 4 forward rotation constructs the protection film in order to drive the edge glue and opens up, and then conveniently tears the protection film and with the protection film rolling on self from display screen 400 to carry out the dyestripping operation, correspondingly, evacuation mechanism evacuation operation is fixed on reel 4 in order to adsorb the protection film through the vacuum adsorption hole.

When tearing tectorial membrane device tectorial membrane operation, the second end static adsorbs on display screen 400 on the membrane of the protection film of rolling on reel 4, and reel 4 can reverse rotation unreel in order to cover the protection film again and locate display screen 400 on, and then carries out the tectorial membrane operation. Moreover, when the reel 4 rotates reversely and unreels, the vacuum pumping mechanism performs vacuum breaking operation to release the protective film.

In particular, the above-mentioned fixed mounts comprise in particular a base frame 2 and a reel mount 3. The base frame 2 is used for fixing on a corresponding supporting base, and the reel mounting frame 3 is assembled on the base frame 2 in a liftable mode along the vertical direction. The reel mounting bracket 3 is rotatably equipped with a reel 4, and the reel mounting bracket 3 has a working position which descends close to the display screen 400 on the lifting stroke of the reel mounting bracket so as to enable the reel 4 to carry out film tearing and laminating operations.

A position detection device is provided between the base frame 2 and the reel mounting frame 3. As shown in fig. 2, the position detecting device herein may employ a displacement sensor 14, the displacement sensor 14 includes a detecting portion and a moving portion, the detecting portion is fixed on the base frame 2, the moving portion is fixed on the reel mounting frame 3, when the reel mounting frame 3 drives the moving portion to move up and down to the limit position, the position of the moving portion can be detected by the detecting portion, and then a signal can be sent to indicate that the reel mounting frame has moved to the limit position, and cannot move any more, so as to form a safety protection.

For real-time specific positions of the reel mounting rack and the reel, a reference position is usually preset, and the specific positions of the reel mounting rack and the reel can be determined in real time by taking the reference position as a zero point and combining with a moving distance of an output screw rod in a screw rod motor for driving the reel mounting rack to lift.

In this embodiment, the base frame 2 includes two side fixed bases 201 and a fixed plate 202, the fixed plate 202 extends along the left and right direction, the fixed base 201 is fixedly assembled at the left and right ends of the fixed plate 202 respectively, the fixed bases 201 at the two sides are used for fixedly assembling with a corresponding supporting base through a fixing bolt, and the middle fixed plate 202 is used for assembling the reel mounting bracket 3 in a liftable manner. In specific implementation, the above-mentioned supporting base may be a supporting column or a supporting gantry located beside the track 100, and during assembly, the base frame may be fixedly mounted on the corresponding base in a bolt connection manner.

A lifting driving mechanism is installed on the fixing plate 202, the lifting driving mechanism drives the reel assembly to lift, the reel assembly specifically comprises a reel mounting rack 3 and a reel 4, and the reel mounting rack 3 is guided to lift along the vertical direction through a reel guiding structure.

In this embodiment, the lifting driving mechanism includes a lead screw motor 1, and the lead screw motor 1 is fixedly installed at the middle position of the fixing plate 202. The screw motor 1 comprises a fixed machine body which is fixedly arranged on a corresponding fixed plate 202, and an output screw 9 which vertically reciprocates up and down is arranged in the fixed machine body. In order to drive the output screw rod to reciprocate, a rotor with internal threads is arranged in the screw rod motor 1, the internal threads of the rotor are in spiral fit with the output screw rod 9, and when the rotor rotates, the output screw rod 9 can be driven to stretch and move linearly. The lead screw motor 1 can specifically adopt a commercially available lead screw stepping motor, and the specific structure is not described herein any more. When the screw rod motor 1 is used, the fixing machine body of the screw rod motor 1 is fixedly arranged at the middle position of the fixing plate 202 through screws, so that the screw rod motor 1 is fixedly arranged on the base frame 2.

The lower end of the output screw 9 is a lifting output end of the lifting driving mechanism, and in the embodiment, the output screw 9 drives the reel mounting rack 3 to lift together with the reel 4 through the lifting cylinder structure 11. As shown in fig. 1 to 4, the lifting cylinder structure 11 extends in the up-down direction as a whole, the upper end of the lifting cylinder structure 11 is connected to the lifting output end of the output screw 9, and the lower end is fixedly connected to the reel mounting bracket 3, so that the lifting cylinder structure 11 applies an upward lifting force to the reel mounting bracket 3. The lifting cylinder structure is used as an elastic lifting structure and is mainly used for providing elastic lifting acting force for the winding drum mounting frame.

As shown in fig. 2 and fig. 3, the lifting cylinder structure 11 specifically includes a cylinder block and a piston rod, the cylinder block is fixedly mounted on the reel mounting frame 3, a cylinder piston is disposed in the cylinder block, and the piston rod is fixedly connected with the cylinder piston. The piston rod is in transmission connection with the output screw rod 9 through an intermediate connecting piece 10, the lower end of the intermediate connecting piece 10 is fixedly connected with the upper end of the piston rod, and the upper end of the intermediate connecting piece 10 is fixedly connected with the lower end of the output screw rod 9.

In particular, the intermediate connecting member may be a rigid connecting rod or a floating joint. The rigid connecting rod extends along the up-down direction to realize the connection of the output screw rod and the lifting cylinder structure. The floating joint can directly adopt a commercially available product, the upper end of the floating joint is connected with the lower end of the output screw rod, and the lower end of the floating joint can be connected with the lifting cylinder structure, so that the output screw rod and the lifting cylinder structure are in transmission connection.

When the rigid connecting piece is used as the middle connecting piece to realize the transmission connection of the output screw rod and the lifting cylinder structure, the upper end and the lower end of the middle connecting piece can be correspondingly provided with the upper adjusting threaded sleeve and the lower adjusting threaded sleeve so as to conveniently realize the fixed assembly of the middle connecting piece, the output screw rod 9 and the piston rod. During connection, the upper adjusting threaded sleeve is spirally sleeved at the lower end of the output screw rod, the middle connecting piece and the output screw rod are respectively and rotatably provided with the first fastening nuts, and the two first fastening nuts are screwed so that the first fastening nuts push the upper end and the lower end of the upper adjusting threaded sleeve in the vertical direction, so that the middle connecting piece 10, the upper adjusting threaded sleeve and the output screw rod 9 can be fixedly assembled together. Similarly, the lower adjusting screw sleeve is spirally sleeved at the upper end of the piston rod, second fastening nuts are respectively screwed on the middle connecting piece 10 and the piston rod, and the two second fastening nuts are screwed to enable the two second fastening nuts to jack and press the upper end and the lower end of the adjusting screw sleeve in the vertical direction, so that the middle connecting piece 10, the lower adjusting screw sleeve and the piston rod can be fixedly assembled together.

The gas pressure in the pulling cylinder structure 11 is adjusted, so that the pulling cylinder structure 11 has a set rigidity, and the winding drum assembly suspended below can be suspended to balance the gravity of the winding drum assembly. As for the lifting cylinder structure 11, the output force value of the lifting cylinder structure 11 can be accurately adjusted by using the first precise pressure regulating valve 12, and the lifting cylinder structure can be used for offsetting the weight of the reel assembly so as to adapt to various different working conditions.

In the present embodiment, the pulling cylinder structure 11 is a general cylinder, and a double-force cylinder may be used. The boosting cylinder can be directly made of commercial products. Under the condition of the same input air pressure, the output driving force of the double-force cylinder is multiplied, and the double-force cylinder is suitable for oil-free operation occasions with short stroke and high output.

As shown in fig. 2, the reel guide structure includes two-sided reel guide rods 7, and the two-sided reel guide rods 7 are symmetrically arranged on the left and right sides of the lead screw motor 1 in the left-right direction. The lower extreme of both sides reel guide bar 7 respectively with reel mounting bracket 3 fixed mounting, and correspond the guide cylinder 6 sliding guide cooperation that is equipped with on reel guide bar 7 of both sides and the fixed plate 202 to guide both sides reel guide bar 7 to remove along vertical direction parallelly, and then can guide reel mounting bracket 3 along vertical direction elevating movement. In addition, in order to improve the action consistency of the two side reel guide rods 7, a first synchronous connecting plate 8 is arranged between the two side reel guide rods 7, the left end and the right end of the first synchronous connecting plate 8 are fixedly assembled with the upper ends of the two side reel guide rods 7 in a one-to-one correspondence manner, and therefore the two side reel guide rods 7 and the first synchronous connecting plate 8 are fixedly assembled together relatively.

In this embodiment, the first synchronous connecting plate is provided with an avoiding hole in the middle, and the avoiding hole is used for the upper end of the output screw 9 of the screw motor 1 to pass through, so as to prevent the winding drum guide rod 7 and the screw motor 1 from influencing each other.

As shown in fig. 1 to 4, the reel assembly integrally includes a reel mounting bracket 3, a reel 4, and a press roller assembly, the reel 4 being rotatably mounted on the reel mounting bracket 3, and the press roller assembly being provided on the reel mounting bracket 3 beside the reel 4.

In the case of the spool 4, the axial direction of the spool extends in the left-right direction, and the left and right ends of the spool 4 are coaxially fitted with rotating shafts 41, respectively, and are fitted to the spool mount 3 via the rotating shafts 41 at both ends so as to be rotatable forward and backward. Set up motor drive mechanism on reel mounting bracket 3, motor drive mechanism includes servo motor 15 and reduction gear 16, and reduction gear 16 fixed mounting is on reel mounting bracket 3, and servo motor 15 and reduction gear 16 fixed mounting, and then install servo motor 15 on reel mounting bracket 3. An input shaft of the speed reducer 16 is in transmission connection with an output shaft of the servo motor 15, and the output shaft of the speed reducer 16 drives the winding drum 4 to rotate through a synchronous belt transmission mechanism. The synchronous belt transmission mechanism comprises a driving wheel 18, a driven wheel 19 and a synchronous belt 17, the driving wheel 18 and an output shaft of the speed reducer 16 are fixedly assembled, the driven wheel 19 is fixedly arranged on the rotating shaft 41, and the synchronous belt 17 is correspondingly meshed with the driving wheel 18 and the driven wheel 19, so that the servo motor 15 can drive the winding drum 4 to rotate through the speed reducer 16 and the synchronous belt transmission mechanism. When the motor driving mechanism is adopted to drive the winding drum 4 to rotate, the forward rotation and the reverse rotation of the winding drum 4 can be conveniently adjusted according to actual needs, and the rotating speed of the winding drum 4 can be adjusted according to the moving speed of the moving platform 300, so that the rotating speed of the winding drum 4 is controlled to be matched with the moving speed of the moving platform 300, and then the film tearing operation and the film laminating operation can be carried out with high quality.

As shown in fig. 2, 6 and 7, the winding drum 4 is provided with an air passage, the air passage includes a cavity 43 formed in the center of the winding drum 4, a plurality of vacuum suction holes 42 are distributed on the outer circumferential surface of the winding drum 4, and the vacuum suction holes 42 are used for communicating the cavity 43 with the outside atmosphere. A rotating shaft 41 of the winding drum 4 is provided with a rotating joint 20, one end of the rotating joint 20 is connected with a vacuum pumping mechanism through a pipeline, and the other end is communicated with a cavity 43 of the winding drum 4 through an air passage arranged on the rotating shaft 41. When the vacuumizing mechanism sucks gas, vacuumizing operation can be performed, and the corresponding protective film is conveniently adsorbed and fixed on the winding drum 4 through the vacuum adsorption holes 42. When the vacuum pumping mechanism inflates the cavity 43 of the reel 4 through the air passage, the vacuum breaking operation can be performed, and the protective film is not adsorbed any more to release the protective film wound on the reel.

In this embodiment, the winding drum 4 itself rotates forward to wind and wind the protection film, and the reverse rotation can unwind and cover the film.

In order to facilitate the rolling of the protective film on the display screen 400 on the winding drum 4, an edge-lifting adhesive mechanism is arranged on the winding drum 4 and is used for lifting the protective film on the display screen 400. In order to ensure that the protective film can be accurately and high-quality lifted, as shown in fig. 2, the edge lifting adhesive mechanism is specifically an edge lifting adhesive tape 5 extending along the axial direction of the winding drum so as to lift the corresponding edge of the protective film when the edge lifting adhesive tape 5 rotates along with the winding drum 4 in the forward direction.

During assembly, as shown in fig. 8, a mounting groove 44 extending along the axial direction of the winding drum is arranged on the outer circumferential surface of the winding drum 4, an adhesive tape mounting rack 45 is arranged in the mounting groove 44 in a concave manner, the edge-rising adhesive tape 5 is correspondingly and fixedly arranged on the adhesive tape mounting rack 45, and then the edge-rising adhesive tape is fixed on the outer circumferential surface of the winding drum. The edge-raising adhesive tape 5 can be a non-dry adhesive tape, the edge of the corresponding end of the protective film can be conveniently lifted by adopting a high-viscosity adhesive tape, and after the protective film is used for a period of time, the protective film can be repeatedly used by washing, and is convenient to maintain and replace.

During the specific implementation, in the tectorial membrane operation in-process, for making things convenient for evacuation mechanism broken vacuum operation back protection film to leave reel 4, can set up antistatic backing on the outer peripheral face of reel 4, avoid leading to the protection film can not break away from with reel 4 fast because of the electrostatic influence. The anti-static layer can adopt the anti-static wrapping layer wrapping the reel, and the anti-static wrapping layer ensures reliable ventilation on the basis of preventing the influence of static electricity. The antistatic layer can also adopt an antistatic coating, and the antistatic coating can not influence the normal ventilation of the vacuum adsorption holes on the winding drum.

The press roller assembly specifically includes a film-coating press roller 22, the film-coating press roller 22 is liftably mounted on the reel mounting bracket 3, and the film-coating press roller 22 also extends in the left-right direction in the axial direction to be arranged in parallel with the reel 4.

As shown in fig. 3, the reel mounting bracket 3 has a side bracket body 31, the side bracket body 31 is located beside the reel 4, the roller mounting bracket 21 is vertically and liftably mounted on the side bracket body 31, and the laminating roller 22 is rotatably mounted on the roller mounting bracket 21. The side support body 31 is provided with a press roll lifting mechanism which can drive the press roll mounting frame 21 and the laminating press roll 22 to move up and down. As shown in fig. 3, the press roll lifting mechanism specifically uses a lifting cylinder 23, the lifting cylinder 23 includes a cylinder body and an output rod, the cylinder body is fixedly mounted on the side support body 31, and the lower end of the output rod is fixedly assembled with the press roll mounting frame 21.

And, in order to guide the vertical lifting of the roll installation frame 21, the roll guides 25 of both sides are assembled on the side frame body 31 through the linear bearing guide, the roll guides 25 of both sides extend in parallel in the vertical direction, and the roll guides 25 of both sides are positioned at the symmetrical both sides of the lifting cylinder 23 in the left and right direction. The lower ends of the roll guides 25 at both sides are fixedly assembled with the roll mounting frame 21, respectively. In addition, a second synchronous connecting plate 24 is fixedly assembled between the two side press roll guides 25, the second synchronous connecting plate 24 and the upper ends of the two side press roll guides 25 are respectively fixedly assembled, and the second synchronous connecting plate 24 is used as a synchronous connecting piece to fixedly assemble the two side press roll guides 25 together, so that the two side press roll guides 25 can synchronously lift.

The lifting cylinder 23 can drive the press roll mounting frame 21 to drive the film laminating press roll 22 to lift, the film laminating press roll 22 has a jacking working position on the lifting stroke, and the film laminating press roll 22 at the jacking working position is used for pressing the protective film to the display screen 400 during film laminating operation so as to force the protective film to be separated from the edge-starting adhesive tape 5 during film laminating operation.

For the display screen 400 and the protection film, to facilitate the description of the effect of the film tearing device 200 provided by the present invention, the corresponding relationship between the display screen 400 and the protection film is described first, the protection film is correspondingly attached to the display screen 400, the protection film has a first end on the film and a second end on the film in a set direction, and the display screen 400 has a first end on the screen and a second end on the screen corresponding to the first end on the screen and the second end on the screen. When the protective film is properly coated on the display screen 400, the first end of the protective film covers the first end of the display screen 400, and the second end of the protective film covers the second end of the display screen 400. The film tearing and covering device 200 provided by the invention not only can realize automatic film tearing and covering operation, but also can effectively restore the covering position of the protective film on the display screen 400.

When the film tearing operation is needed, the winding drum 4 is driven to descend to a corresponding working position by the screw rod motor 1 through the lifting cylinder structure 11, and the winding drum 4 is controlled to rotate, so that the edge-lifting adhesive tape 5 rotates to the lowest end of the winding drum 4 to facilitate the adhesion of the protective film. During specific implementation, the moving platform 300 is controlled to move forward relative to the winding drum 4 along the track 100, and when the edge lifting adhesive tape 5 is in adhesive contact with the edge of the first end on the film of the protection film, the winding drum 4 rotates forward, so that the first end on the film of the protection film is separated from the first end on the screen of the display screen 400, and the protection film is lifted by the edge lifting adhesive tape 5. The reel 4 continues to rotate forward, and the mobile platform 300 takes the display screen 400 to continue moving forward relatively, and in this process, the reel 4 can tear the protection film from the display screen 400, and winds the protection film roll on itself, and the second end breaks away from the second end on the screen on the display screen 400 on the epimembranal second end of protection film, and the second end on the epimembranal second end is also adsorbed and fixed on the reel 4, accomplishes the operation of tearing the membrane. And, the vacuum-pumping mechanism performs vacuum-pumping work to suction-fix the protective film on the roll 4 through the vacuum suction hole. And then controlling the lifting driving mechanism to drive the reel 4 to lift with the protective film, and moving the mobile platform 300 with the display screen 400 to move away.

In the film tearing process, the edge of the first end of the protective film is fixedly adhered to the edge lifting rubber strip 5, and the second end of the protective film is fixedly adsorbed on the peripheral surface of the winding drum 4. The outer circumference of the roll 4 is generally large in size, so that the second end of the protective film and the first end of the protective film are prevented from being overlapped and cannot be adsorbed and fixed.

Moreover, in the film tearing process, when the edge of the first end on the film of the adhesive protective film of the edge-starting adhesive tape 5 is located, the winding drum 4 rotates forwards, the protective film can be uncovered through the edge-starting adhesive tape 5, the protective film can be conveniently torn off from the display screen 400 by the winding drum 4 when the winding drum 4 rotates and the moving platform 300 moves forwards relatively, and the protective film is wound on the winding drum.

The technical personnel in the field need notice that, when needs will rise the limit adhesive tape 5 accurate adjustment to reel 4 bottom to when the epimembranal first end of conveniently taking off the protection film, can utilize corresponding sensor to adjust reel 4 to the position of returning to zero usually, then predetermined settlement orders about reel 4 to setting for the direction turned angle, can guarantee to order about reel 4 and can accurately rotate the limit adhesive tape 5 to reel 4 bottom when rotating to setting for the position.

Because the edge-starting adhesive tape can be adhesively connected with the protective film, the vacuumizing mechanism can vacuumize when the first end of the edge-starting adhesive tape and the first end of the protective film are adhered, and can also vacuumize when the second end of the protective film is about to be separated from the display screen, so long as the protective film wound on the winding drum can be better adsorbed and fixed on the winding drum.

After the protective film on the display screen 400 is torn off, the mobile platform 300 moves backward with the display screen 400 to complete the corresponding process operation, for example, photographing by a plurality of cameras configured to detect the quality of the display screen 400.

When the film covering operation is required, the screw rod motor 1 drives the winding drum 4 to descend to a corresponding working position through the lifting cylinder structure 11, and the winding drum 4 can be rotated and adjusted to enable the second end, on the film, of the protective film to be located at the lowest end of the winding drum 4, so that the second end, on the film, of the protective film can be fixed to the second end, on the screen, of the display screen 400 through electrostatic adsorption conveniently. The moving platform 300 is controlled to drive the display screen 400 to move along the rail 100 until the second end of the display screen 400 on the screen is opposite to the second end of the protective film on the film, the vacuumizing mechanism inflates air into the inner cavity of the winding drum 4 to realize vacuum breaking operation, the protective film is released, the second end of the protective film on the film is not adsorbed and fixed and falls down, and the second end of the protective film on the film is adsorbed at the second end of the display screen 400 on the screen in an electrostatic adsorption mode. At this time, the winding drum 4 rotates reversely to unwind, in the process, the moving platform 300 drives the display screen 400 to move reversely relative to the winding drum 4, and the display screen 400 adsorbs and fixes the protective film on the display screen 400 in an electrostatic adsorption mode. Along with reel 4 antiport, when rising edge adhesive tape 5 takes the epimembranal first end to rotate to reel 4 bottommost, utilize the absorption stationary power of display screen 400 and protection film and the inertia that moving platform 300 transferred display screen 400, can tear the epimembranal first end of protection film from rising edge adhesive tape 5 and adsorbed and fix on display screen 400, the epimembranal first end of protection film just in time corresponds with the epimembranal first end of display screen 400, can cover the protection film on display screen 400 well again.

During the tectorial membrane operation, when the first end rotates to reel 4 below on the membrane of rising limit adhesive tape 5 and protection film, for preventing that rise limit adhesive tape 5 does not break away from with the first end on the membrane of protection film, need tectorial membrane compression roller 22 to push down the protection film downwards, guarantee that the protection film can break away from with rising limit adhesive tape 5 to avoid rising limit adhesive tape 5 to take up display screen 400 through the protection film. In specific implementation, when the moving platform 300 with the partially coated display screen 400 moves in the opposite direction to the lower side of the coating pressing roller 22 relative to the winding drum 4, the coating pressing roller 22 can be controlled to move downwards to a pressing working position, and the coating pressing roller 22 presses the protective film to the display screen 400.

Note that, in order to prevent the film covering compression roller 22 from crushing the display screen 400, the second precise pressure regulating valve 13 may be used to adjust the gas pressure of the corresponding lifting cylinder 23 to adjust the pressure exerted by the film covering compression roller 22 on the protection film, so as to not only effectively prevent the film covering compression roller from crushing the display screen 400, but also facilitate precise control to prevent the film covering position from changing.

For those skilled in the art, both in the film tearing operation and in the film covering operation, the transfer speed of the reel and the moving speed of the moving platform need to be adjusted to be matched, so as to prevent the protective film from being torn due to the inconsistent speeds. The person skilled in the art can select the specific speed according to the actual needs, and the invention is not particularly limited.

When the film tearing and laminating device is used, the forward and reverse rotation of the winding drum and the forward and reverse movement of the movable platform relative to the winding drum are combined, and the edge glue bonding mechanism and the film laminating press roller are matched, so that the full-automatic film tearing and laminating operation can be realized, and the problem that the film tearing or laminating operation needs to be manually participated in the traditional method is effectively solved. In addition, the protective film is accurately wound on the winding drum, so that the protective film is not easily damaged, the starting position of the film covering is conveniently controlled, the protective film can be re-covered on the display screen by referring to the original position, the repeated utilization of the protective film is realized, the manufacturing cost of the product is effectively saved, and the film covering quality of the product is improved.

Embodiment 2 of the display screen production apparatus provided by the present invention:

the difference from example 1 is mainly that: in example 1, the edge-starting adhesive means on the roll is embodied as an edge-starting adhesive tape extending in the axial direction of the roll.

In this embodiment, the gluey structure of limit that plays on the reel also can be for a plurality of gluey pieces of limit that play along reel axial interval distribution in proper order, when the actual implementation, can be with playing less that the interval of limit gluing piece set up, improves the gluey fast density in limit, improves the bonding effect.

In other embodiments, the edge-starting adhesive mechanism may further select an edge-starting bearing, and the outer peripheral surface of the edge-starting bearing forms a viscous outer peripheral surface, and specifically, the viscous outer peripheral surface may be formed by adhering an adhesive sticker on the outer peripheral surface of the edge-starting bearing. And a bearing support shaft is fixedly arranged on the winding drum, and the starting bearing is correspondingly assembled on the bearing support shaft. When carrying out the dyestripping operation, the reel takes the limit bearing to rotate downwards to the limit bearing that rises and is in the bottom, by the sticky outer peripheral face of the limit bearing and the first end adhesive contact on the membrane of protection film, when the reel forward rotates, can lift through bearing support shaft drive bearing, and then can take off the border of the first end on the membrane of protection film, form the limit operation.

Embodiment 3 of the display screen production apparatus provided by the present invention:

the difference from example 1 is mainly that: in embodiment 1, the screw motor as the lifting driving mechanism drives the reel mounting bracket to lift through the lifting cylinder structure, so that the lifting cylinder structure applies a lifting force to the reel mounting bracket, thereby counteracting the gravity of the reel assembly. When lifting drive mechanism drove the reel through carrying to draw cylinder structure and descend, if the reel excessively descends and leads to exerting too big pushing down force and damaging the display screen to the display screen, perhaps appear the display screen and warp suddenly and lead to the reel excessively to push down the display screen and damage the display screen, under the gas cushioning effect that carries to draw cylinder structure self to have, the reel that receives display screen reverse action power can slightly come-up to can effectively avoid the reel to excessively descend and crush the display screen relative to the display screen.

In this embodiment, the lifting output end of the lifting driving mechanism can drive the reel mounting rack to lift through the spring pulling piece, and the spring pulling piece is used as the elastic pulling structure. When the lifting mechanism is specifically implemented, the spring lifting piece can adopt a tension spring, the upper end of the tension spring is connected with the lifting output end, and the lower end of the tension spring is connected with the winding drum mounting frame. Through the elastic coefficient and the length of the design adjustment tension spring, the traction acting force applied to the reel mounting frame by the tension spring can be adjusted to balance the gravity of the reel assembly. At this moment, when the reel excessively descends relative to the display screen, under the cushioning effect of extension spring, the reel that receives display screen counter force can slightly come up equally to can effectively avoid the reel excessively to descend relative to the display screen and crush the display screen.

Embodiment 4 of the display screen production apparatus provided by the present invention:

the difference from example 1 is mainly that: in embodiment 1, the lifting driving mechanism for driving the reel mounting rack and the reel to lift comprises a screw motor, and the reel mounting rack is driven to lift by the screw motor through a lifting cylinder structure.

In some implementations, the output screw of the screw motor can be directly connected with the reel mounting bracket under the condition of omitting the structure of the lifting cylinder, so that the reel mounting bracket and the reel can be directly driven to lift by the output screw.

In other embodiments, the lifting driving mechanism can directly adopt a reel lifting cylinder, the cylinder body of the reel lifting cylinder is fixed on the base frame, and the output rod of the reel lifting cylinder is connected with the reel mounting frame, so that a lifting cylinder structure is omitted. At the moment, the reel mounting frame and the reel can be driven to complete lifting action by controlling the output rod of the reel lifting cylinder to stretch and retract.

Embodiment 5 of the display screen production apparatus provided by the present invention:

the difference from example 1 is mainly that: the reel mounting rack is assembled on the base frame in a vertically liftable and lowerable manner.

In this embodiment, the reel mounting bracket can also be installed on the swing span, and the reel mounting bracket is driven to perform the lifting action through the swing span, and at this moment, the reel mounting bracket lifts along the arc line.

Embodiment 6 of the display screen production apparatus provided by the present invention:

the difference from example 1 is mainly that: the mounting rack comprises a base frame and a reel mounting rack, and the reel mounting rack is arranged on the base frame in a liftable mode and used for driving the reel to ascend and descend. When the film tearing and laminating operation is required, the winding drum is driven to descend to a working position. And when the operation of tearing the membrane and the tectorial membrane operation are accomplished, can control the reel and go up and down for the reel that has the protection film of coiling lets out the moving platform, avoids the moving platform to touch the protection film, causes the protection film damage.

In this embodiment, the reel mount may be directly fixed to the base frame such that the reel is not lifted. In order to avoid the situation that the moving platform touches the protective film in the reciprocating movement process, the moving platform can be designed into a lifting structure. When the mobile platform moves in place, the mobile platform rises, so that the winding drum can wind the protective film from the display screen or the winding drum can wind the protective film on the display screen.

Embodiment 7 of the display screen production apparatus provided by the present invention:

the difference from example 1 is mainly that: in embodiment 1, the winding drum can be lifted, and the moving platform can move horizontally, so as to realize the relative forward movement and reverse movement of the moving platform and the winding drum.

In this embodiment, when carrying out the operation of tearing membrane and tectorial membrane operation, moving platform can fix motionless, and reel self both can go up and down, but also can relative moving platform horizontal migration, still can rotate in order to realize receiving and releasing the roll operation.

In specific implementation, the base frame of the film tearing and covering device in embodiment 1 can be movably assembled on a rail in a guiding manner, so that the whole film tearing and covering device can move along the rail, the winding drum can horizontally move relative to the movable platform, and the relative movement between the winding drum and the display screen during film tearing operation and film covering operation is met.

The invention also provides an embodiment of a film tearing and laminating method using the display screen production equipment, and the film tearing and laminating method in the embodiment mainly comprises a film tearing operation method and a film laminating operation method.

When tearing tectorial membrane device dyestripping operation, the edge that plays on the reel glues the epimembranal first end of the protection film on the sticky display screen of structure, the reel area has edge to glue the structure corotation in order to take off the protection film, by the relative reel forward motion of moving platform drive display screen in reel corotation in-process for reel corotation rolling protection film is in order to tear the protection film from the display screen and remove the epimembranal second end of up to the protection film and break away from the display screen, and evacuation mechanism evacuation operation is in order to adsorb the protection film of fixed rolling on the reel.

When the film tearing device is used for film covering operation, when the second end of the film wound on the protective film on the winding drum corresponds to the corresponding position on the display screen, the vacuumizing mechanism is used for vacuum breaking operation to release the protective film, the second end of the film of the protective film is adsorbed on the display screen through static electricity, the display screen is driven by the moving platform to move reversely relative to the winding drum and the winding drum rotates reversely to unreel, and the protective film is adsorbed on the display screen through static electricity of the display screen so as to be covered on the display screen again.

When the film tearing and laminating method is used specifically, reference may be made to the film tearing and laminating operation method when the display screen production equipment is used, and the means applied by the film tearing and laminating method are correspondingly described when the display screen production equipment performs the film tearing and laminating operation, and are not described in detail herein.

The invention also provides an embodiment of the film tearing and laminating device for display screen production, and the structure of the film tearing and laminating device in the embodiment is the same as that of the film tearing and laminating device in any one of embodiments 1 to 7 of the display screen production equipment, and is not described again here.

In light of the foregoing description of the present specification, those skilled in the art will also understand that terms used herein, such as "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "axial," "radial," "circumferential," and "center," to indicate an orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings of the present specification for the purpose of convenience in describing the aspects of the present invention and simplifying the description, and do not explicitly show or imply that the devices or elements involved must have the particular orientation, be constructed in a particular orientation, and be operated, and therefore the above-described orientation or positional relationship terms should not be understood or interpreted as limiting the inventive aspects.

In addition, the terms "first" or "second", etc. used in this specification are used to refer to numbers or ordinal terms for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the feature. In the description of the present specification, "a plurality" means at least two, for example, two, three or more, and the like, unless specifically defined otherwise.

While various embodiments of the present invention have been shown and described herein, it will be obvious to those skilled in the art that such embodiments are provided by way of example only. Numerous modifications, changes, and substitutions will occur to those skilled in the art without departing from the spirit and scope of the present invention. It should be understood that various alternatives to the embodiments of the invention described herein may be employed in practicing the invention. It is intended that the following claims define the scope of the invention and that the module compositions, equivalents, or alternatives falling within the scope of these claims be covered thereby.

Claims

1. The utility model provides a display screen production is with tearing tectorial membrane device which characterized in that includes:

the fixed mounting frame comprises a base frame, and the base frame is used for being fixedly mounted on a corresponding supporting foundation;

the base frame is provided with a winding drum mounting rack in a lifting manner, the winding drum mounting rack is provided with a winding drum in a forward and reverse reciprocating rotation manner, and the winding drum is used for winding the protective film on the display screen in a forward rotation manner so as to enable the film tearing device to perform film tearing operation and unwinding in a reverse rotation manner so as to enable the film tearing device to perform film covering operation;

the winding drum mounting frame is provided with a working position which enables the winding drum to descend to be close to the display screen on the lifting stroke of the winding drum mounting frame so as to enable the film tearing and laminating device to conduct film tearing and laminating operations;

the lifting driving mechanism drives the winding drum mounting rack to lift through the elastic lifting structure, so that the elastic lifting structure applies an upward lifting acting force to the winding drum mounting rack, and further the downward pressing action of the winding drum mounting rack and the winding drum gravity on the display screen is counteracted or weakened during the film tearing operation of the film tearing device;

the winding drum is provided with an edge adhesive bonding mechanism which is used for bonding the corresponding end of the protective film during film tearing operation of the film tearing and covering device so as to uncover the protective film when the edge adhesive bonding mechanism rotates along with the winding drum in a positive direction;

a plurality of vacuum adsorption holes for communicating with a vacuumizing mechanism are distributed on the peripheral surface of the winding drum and are used for adsorbing and fixing the protective film wound on the winding drum during vacuumizing operation of the vacuumizing mechanism;

correspond the reel liftable ground disposes the tectorial membrane compression roller, this tectorial membrane compression roller with the reel is parallel to be extended, and this tectorial membrane compression roller has roof pressure work position on its lift stroke, works as the broken vacuum operation of evacuation mechanism makes protection film static adsorbs on the display screen so that when tearing tectorial membrane device tectorial membrane operation, is in the roof pressure work position the tectorial membrane compression roller be used for with the protection film pressure to the display screen to force when tearing the tectorial membrane device and accomplishing the tectorial membrane operation the protection film with it bonds to construct and breaks away from to rise the limit.

2. The film tearing and covering device for display screen production according to claim 1, wherein the edge adhesive bonding structures extend along the axial direction of the winding drum or are distributed at intervals along the axial direction of the winding drum.

3. The film tearing and covering device for display screen production according to claim 2, wherein the edge-starting glue is a strip of edge-starting glue extending along the axial direction of the winding drum or a plurality of edge-starting glue blocks distributed at intervals along the axial direction of the winding drum.

4. The film tearing and covering device for display screen production according to claim 3, wherein the edge-raising adhesive tape or the edge-raising adhesive block is fixedly arranged on the outer circumferential surface of the winding drum.

5. The film tearing and covering device for display screen production according to claim 4, wherein a mounting groove extending along the axial direction of the winding drum is formed in the outer circumferential surface of the winding drum, a rubber strip mounting frame is concavely arranged in the mounting groove, and the edge lifting rubber strip is correspondingly and fixedly arranged on the rubber strip mounting frame so as to be fixedly arranged on the outer circumferential surface of the winding drum.

6. The film tearing and covering device for display screen production according to any one of claims 1 to 5, wherein the film covering press roller is liftably assembled on the fixed mounting frame.

7. The film tearing and covering device for display screen production according to any one of claims 1 to 5, wherein the upper end of the elastic lifting structure is connected with the lifting output end of the lifting driving mechanism, and the lower end of the elastic lifting structure is connected with the reel mounting rack so as to apply an upward lifting force to the reel mounting rack.

8. The film tearing and covering device for display screen production according to claim 7, wherein the reel mounting rack is vertically and liftably guided and mounted on the base frame.

9. The film tearing and covering device for display screen production according to claim 7, wherein the elastic pulling structure is a pulling cylinder structure or a spring pulling piece.

10. The film tearing and covering device for display screen production according to any one of claims 1 to 5, wherein the film covering press roller is liftably and lowerably assembled on the reel mounting rack.

11. The display screen production is with tearing tectorial membrane device of claim 10, characterized in that, be equipped with the compression roller mounting bracket along vertical direction liftable on the reel mounting bracket, the tectorial membrane compression roller is installed on the compression roller mounting bracket, be provided with between reel mounting bracket and the compression roller mounting bracket and be used for the drive the compression roller elevating system that the compression roller mounting bracket goes up and down.

12. The film tearing and covering device for the display screen production according to claim 11, wherein two side press roller guiding members are movably and vertically assembled on the winding drum mounting frame and fixedly assembled with the press roller mounting frame, the two side press roller guiding members are axially positioned on two symmetrical sides of the press roller lifting mechanism in the film covering press roller, and the two side press roller guiding members are fixedly assembled together through a synchronous connecting piece.

13. The film tearing and covering device for display screen production according to any one of claims 1 to 5, wherein a servo motor is mounted on the reel mounting rack, and the servo motor drives the reel to rotate in a reciprocating manner through a synchronous belt transmission mechanism.

14. The film tearing and covering device for display screen production according to any one of claims 1 to 5, wherein the film tearing and covering device further comprises the vacuum-pumping mechanism, a gas channel is arranged on the winding drum, and the vacuum-pumping mechanism is communicated with the vacuum adsorption hole through the gas channel.

15. A display screen production apparatus, comprising:

the tearing and laminating device for the display screen as claimed in any one of claims 1 to 13, wherein the vacuum suction hole on the winding drum of the tearing and laminating device is communicated with a vacuum pumping mechanism; and

the mobile platform is provided with an installation position for supporting and placing the display screen, and the mobile platform can move relative to the film tearing and covering device in a forward and reverse reciprocating mode so as to be matched with the winding drum rotating in a forward and reverse reciprocating mode to enable the film tearing and covering device to tear and cover the film.

16. A method of peeling a cover film using the display screen production apparatus according to claim 15,

when a film tearing device of display screen production equipment tears a film, an edge adhesive bonding mechanism on a winding drum is used for adhering a first end on a film of a protective film on a display screen, the winding drum drives the edge adhesive bonding mechanism to rotate forwards to tear the protective film, the display screen is driven by a moving platform to move forwards relative to the winding drum in the forward rotation process of the winding drum, so that the winding drum rotates forwards to roll the protective film to tear the protective film from the display screen until a second end on the film of the protective film is separated from the display screen, and a vacuumizing mechanism performs vacuumizing operation to adsorb and fix the protective film rolled on the winding drum;

when tearing tectorial membrane device tectorial membrane operation at display screen production facility, when the epimembranal second end of the protection film of coiling on the reel corresponds with the relevant position on the display screen, the broken vacuum operation of evacuation mechanism is in order to release the protection film, the epimembranal second end of protection film adsorbs on the display screen through static, by moving platform drive display screen relative reel antiport and reel antiport unreel, adsorb the protection film by display screen static in order to locate the protection film on the display screen to press the protection film to the display screen by the tectorial membrane compression roller when tearing tectorial membrane device and accomplishing the tectorial membrane operation, in order to force the epimembranal first end of protection film with it breaks away from to rise the limit and glue the structure.