Curved screen protective layer processing and attaching equipment

Abstract

The present application relates to the technical field of curved screen production, and particularly relates to a curved screen protective layer processing and attaching equipment, which uses low-cost ordinary plastic protective film or layer, has simple attaching process, firm attachment, low use cost, can eliminate edge lifting and bubbles, and comprises a conveyor, a grabbing mechanism, an attaching pool and a reel mechanism, further comprises a lower mold, a ring-shaped air bag and a lower suction disc, the lower mold is installed in the attaching pool, the protective layer is laid on the upper part of the attaching pool, the lower mold is provided with a groove and a ring-shaped mounting groove, the ring-shaped air bag is installed in the ring-shaped mounting groove, the groove bottom of the lower mold is provided with the lower suction disc in a lifting mode, the lower suction disc adsorbs the bottom of the protective layer and pulls down to form a pit, the pit is filled with defoaming liquid, the defoaming liquid is an insulating liquid, the grabbing mechanism presses the curved screen to the protective layer, the curved screen pushes away the defoaming liquid to avoid bubbles, and the ring-shaped air bag is inflated to tightly wrap the edge of the protective layer at the edge arc of the screen.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of curved screen production, and particularly relates to a curved screen protective layer processing and attaching device. BACKGROUND

[0002] A curved screen is a display screen that is entirely arc-shaped or has an arc-shaped edge. Both curved screens and flat screens are fragile, so a protective layer, usually a plastic film, needs to be attached to the outer surface of the screen after production. The plastic film is electrostatically adsorbed on a long strip of film, which is wound into a spool. The spool is loaded onto an attaching device.

[0003] When attaching a protective layer to a flat screen or a curved screen, the common problem to be solved is how to eliminate air bubbles between the protective layer and the screen. When attaching a protective layer to a curved screen, the problem to be solved is also how to eliminate the edge lifting and poor attachment of the protective layer at the curved edge of the screen.

[0004] Various methods and devices for attaching protective layers have been proposed in the prior art. For example, a protective film, a preparation method, an attaching method and a terminal are disclosed in Chinese Patent Publication No. ZL202010206525.6. After the protective film is attached to the surface of the screen, the terminal uses UV light to irradiate and solidify the protective film, so that the protective film can better adapt to the curvature of the curved display screen and completely match the curved display screen.

[0005] However, the cost of the special protective film or layer is high, and the attaching process is complex. For ordinary users, the protective layer only needs to prevent scratching and knocking. Therefore, the protective film or layer is usually torn off during use. Users will stick a personalized protective film or layer by themselves. Therefore, a curved screen protective layer processing and attaching device for attaching ordinary protective films or layers at low cost is needed. SUMMARY

[0006] To solve the above technical problems, the present application provides a curved screen protective layer processing and attaching device that uses low-cost ordinary plastic protective films or layers, has a simple attaching process, is firmly attached, has low use cost, and can eliminate edge lifting and air bubbles.

[0007] The curved screen protection layer processing and attaching equipment of the application comprises a conveyor, a grabbing mechanism, an attaching pool and a reel mechanism, the conveyor conveys the curved screen, the grabbing mechanism is arranged between the conveyor and the attaching pool, the grabbing mechanism grabs the curved screen conveyed on the conveyor into the attaching pool, the reel mechanism is installed on the attaching pool, and the reel mechanism conveys the protection layer reel; further comprising a lower mold, a ring-shaped air bag and a lower suction disc, the lower mold is installed in the attaching pool, the protection layer is laid on the upper part of the attaching pool, the lower mold is provided with a groove, the bottom of the groove is provided with a ring-shaped mounting groove, the ring-shaped air bag is installed in the ring-shaped mounting groove, the part of the ring-shaped air bag located in the ring-shaped mounting groove opening is matched with the arc shape of the edge of the curved screen, the lower suction disc is installed in the bottom of the groove of the lower mold in a lifting manner, the lower suction disc adsorbs the bottom of the protection layer and pulls downward to form a pit, the pit is filled with defoaming liquid, the defoaming liquid is an insulating liquid, the grabbing mechanism presses the curved screen onto the protection layer, the curved screen pushes away the defoaming liquid to avoid the generation of bubbles, and the ring-shaped air bag is inflated to tightly wrap the edge of the protection layer at the edge arc of the screen; in operation, the conveyor conveys the curved screen, the common plastic protection layer film reel is loaded onto the reel mechanism, the protection layer film is laid on the lower mold, the lower suction disc is raised to adsorb the bottom of the protection layer, the lower suction disc is lowered to form a pit on the protection layer, the pit is injected with the defoaming liquid, the grabbing mechanism grabs the curved screen conveyed on the conveyor and presses the curved screen into the attaching pool, the surface of the curved screen is pressed onto the upper surface of the protection layer to fill the pit and squeeze out the defoaming liquid, the depth of the defoaming liquid is adjusted to enable the defoaming liquid to completely immerse the arc-shaped edge of the curved screen, so that the bubbles between the protection layer and the curved screen are eliminated, the ring-shaped air bag is inflated, the ring-shaped air bag protrudes from the ring-shaped mounting groove opening of the lower mold, so that the edge part of the protection layer is tightly wrapped onto the edge arc part of the curved screen, the edge lifting of the protection layer and the curved screen is eliminated, the defoaming liquid with adhesion can improve the attaching firmness of the protection layer, the common plastic protection film or layer with low cost is used, the attaching process is simple, the use cost is low, the edge lifting and bubbles can be eliminated, and the attachment is firm.

[0008] Preferably, the liquid adding device is further provided, the liquid adding device is installed on the attaching pool, the liquid adding device adds the defoaming liquid into the pit formed on the protection layer, and the depth of the defoaming liquid is adjusted; the liquid adding device adds the defoaming liquid into the pit formed on the protection layer, the liquid adding device controls the amount of the added defoaming liquid, so that the depth of the defoaming liquid in the pit on the protection layer is adjusted, and the practicability is good.

[0009] Preferably, the liquid adding device is further provided, the liquid adding device is installed on the attaching pool, the liquid adding device adds the defoaming liquid into the pit formed on the protection layer, and the depth of the defoaming liquid is adjusted; the liquid adding device adds the defoaming liquid into the pit formed on the protection layer, the liquid adding device controls the amount of the added defoaming liquid, so that the depth of the defoaming liquid in the pit on the protection layer is adjusted, and the practicability is good.

[0010] Preferably, the liquid level sensor is installed on the matching pool, and when the defoaming liquid collected in the matching pool contacts the liquid level sensor, the liquid adding device opens to reuse the defoaming liquid in the matching pool; the liquid level sensor detects the depth of the defoaming liquid in the matching pool, and when the defoaming liquid in the matching pool contacts the liquid level sensor, the liquid adding device draws out the defoaming liquid in the matching pool through the return pipe for reuse, thereby improving the utilization rate of the defoaming liquid.

[0011] Preferably, the semi-rigid layer is arranged at the part where the annular mounting slot and the curved edge of the curved screen are arc-matched, and the semi-rigid layer is arc-matched with the curved edge of the curved screen; the semi-rigid layer can improve the wrapping effect at the arc edge of the curved screen.

[0012] Preferably, the nozzle and the electrostatic generator are further included, the nozzle is provided with a plurality of nozzles, the input end of the nozzle is provided with the electrostatic generator, the electrostatic generator inputs electrostatic ions into the nozzle, and the nozzle sprays electrostatic wind to the surface of the curved screen through the plurality of nozzles, thereby enhancing the electrostatic adsorption firmness of the protective layer and the surface of the curved screen.

[0013] Preferably, the lifting push rod and the spring are further included, the lifting push rod is installed on the bottom surface of the lower suction disc, the lifting push rod is installed at the bottom of the groove of the lower mold, the lifting push rod drives the lower suction disc to lift, and the two ends of the spring are connected to the bottom surface of the lower suction disc and the bottom of the groove of the lower mold, and the spring elastically supports the lower suction disc; the lifting push rod retracts the lower suction disc, so that the upper end surface of the lower suction disc is flush with the bottom of the groove of the lower mold, the lifting push rod releases the lower suction disc, the elastic force of the spring pushes the lower suction disc to reset, and the lower suction disc adsorbs the bottom surface of the protective layer.

[0014] Preferably, the reel mechanism includes a driven reel and a waste reel, the driven reel is installed on one side of the matching pool, the waste reel is installed on the other side of the matching pool, the driven reel is used to load the protective layer reel, the waste reel is used to load the waste reel, and the waste reel is provided with a winding motor; the winding motor on the waste reel intermittently winds the waste according to the program, thereby pulling the protective layer to be flat on the lower mold to realize the conveying and matching of the protective layer.

[0015] Preferably, the grabbing mechanism comprises a conveying frame, a cross frame, a pushing cylinder and an upper suction disc, the conveying frame is horizontally arranged above the conveying machine and the lamination pool, a synchronous belt mechanism and a driving mechanism of the synchronous belt mechanism are arranged on the conveying frame, the cross frame is installed on the synchronous belt of the conveying frame, the upper end of the pushing cylinder is rotationally connected with the cross frame, the lower end of the pushing cylinder is horizontally installed with the upper suction disc, the upper suction disc is used for adsorbing the curved screen, the synchronous belt of the conveying frame drives the cross frame, the pushing cylinder and the upper suction disc to reciprocate above the conveying machine and the lamination pool; the conveying frame drives the cross frame to move above the conveying machine and the lamination pool, the cross frame drives the pushing cylinder and the upper suction disc to move, when the upper suction disc moves above the conveying machine, the pushing cylinder is elongated to drive the upper suction disc to descend and adsorb the curved screen on the conveying machine, when the upper suction disc reaches above the lamination pool, the pushing cylinder is elongated to push the upper suction disc to descend and press the curved screen into the groove of the lower mold, after the protective layer is laminated, the upper suction disc puts the curved screen back on the conveying machine, the structure is simple and the working efficiency is high.

[0016] Preferably, the heater is installed on the lower end face of the upper suction disc, and the heater is used for ironing the protective layer; when the curved screen and the protective layer are laminated, the heater generates heat to iron the protective layer, so that the protective layer is hot plastic formed, and the lamination effect of the protective layer is improved.

[0017] Compared with the prior art, the beneficial effects of the present application are as follows: during work, the conveying machine conveys the curved screen, the common plastic protective layer film reel is loaded on the reel mechanism, and the protective layer film is laid on the lower mold, the lower suction disc is raised to adsorb the bottom of the protective layer, the lower suction disc is lowered to form a pit on the protective layer, the defoaming liquid is injected into the pit, the grabbing mechanism grabs the curved screen conveyed on the conveying machine and presses the curved screen into the lamination pool, so that the surface of the curved screen is pressed onto the upper surface of the protective layer to fill the pit, the defoaming liquid is extruded out, the depth of the defoaming liquid is adjusted, so that the defoaming liquid can completely immerse the arc-shaped edge of the curved screen, thereby eliminating the bubbles between the protective layer and the curved screen, the annular air bag is inflated, the annular air bag protrudes from the annular mounting slot of the lower mold, thereby tightly wrapping the edge part of the protective layer to the edge arc-shaped part of the curved screen, eliminating the edge lifting of the protective layer and the curved screen, the defoaming liquid with adhesion can improve the lamination firmness of the protective layer, the common plastic protective film or layer with low cost is used, the lamination process is simple, the use cost is low, the edge lifting and bubbles can be eliminated, and the lamination is firm. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 is a structural schematic diagram of the present application;

[0019] Figure 2 is an axonometric structural schematic diagram of the present application;

[0020] Figure 3 is a front sectional structural schematic diagram of the present application;

[0021] Figure 4 is a structural schematic diagram of the present application in the state of unloading the protective layer reel.

[0022] Figure 5 is a top view structural schematic diagram of the present application;

[0023] Figure 6 is a structural schematic diagram of the grabbing mechanism and other structures;

[0024] Figure 7 is a structural schematic diagram of the lamination pool, spool mechanism, lower suction disc, liquid feeder, return pipe, liquid level sensor, spray pipe and electrostatic generator and other structures;

[0025] Figure 8 is a structural schematic diagram of the lamination pool, spool mechanism, lower mold, annular air bag and lower suction disc and other structures in the disassembled state;

[0026] Figure 9 is a structural schematic diagram of the lamination pool, spool mechanism, lower mold, annular air bag and lower suction disc and other structures in the disassembled state;

[0027] Figure 10 is a structural schematic diagram of the lower suction disc contracted to the bottom of the recess of the lower mold;

[0028] Markings in the drawings: 1, conveyor; 2, grabbing mechanism; 3, lamination pool; 4, spool mechanism; 5, lower mold; 6, annular air bag; 7, lower suction disc; 8, liquid feeder; 9, return pipe; 10, liquid level sensor; 11, spray pipe; 12, electrostatic generator; 13, lifting push rod; 14, spring; 15, driven retractor; 16, waste retractor; 17, conveying frame; 18, cross frame; 19, push cylinder; 20, upper suction disc; 21, heater. DETAILED DESCRIPTION

[0029] In order to facilitate the understanding of the present application, the present application will be described more fully below with reference to the related drawings. The present application can be implemented in many different forms, and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present application more thorough and comprehensive.

[0030] EMBODIMENT

[0031] As Figures 1 to 10As shown, a curved screen protective layer processing and attaching device, comprising a conveyor 1, a grabbing mechanism 2, an attaching pool 3 and a reel mechanism 4, the conveyor 1 conveying the curved screen, the grabbing mechanism 2 being arranged between the conveyor 1 and the attaching pool 3, the grabbing mechanism 2 grabbing the curved screen conveyed on the conveyor 1 into the attaching pool 3, the reel mechanism 4 being installed on the attaching pool 3, the reel mechanism 4 conveying the protective layer reel; further comprising a lower mold 5, an annular air bag 6 and a lower suction cup 7, the lower mold 5 being installed in the attaching pool 3, the protective layer being laid on the upper part of the attaching pool 3, the lower mold 5 being provided with a groove, the bottom of the groove being provided with an annular mounting groove, the annular air bag 6 being installed in the annular mounting groove, the part of the annular air bag 6 located in the annular mounting groove being matched with the arc shape of the edge of the curved screen, the lower suction cup 7 being liftably arranged at the bottom of the groove of the lower mold 5, the lower suction cup 7 adsorbing the bottom of the protective layer and pulling it downward to form a pit, the pit being filled with defoaming liquid, the defoaming liquid being an insulating liquid, the grabbing mechanism 2 pressing the curved screen onto the protective layer, the curved screen pushing away the defoaming liquid to avoid the generation of bubbles, the annular air bag 6 being inflated to tightly wrap the edge of the protective layer at the edge arc of the screen; further comprising a liquid adding device 8, the liquid adding device 8 being installed on the attaching pool 3, the liquid adding device 8 adding the defoaming liquid into the pit formed on the protective layer and adjusting the depth of the defoaming liquid; further comprising a backflow pipe 9, the backflow pipe 9 being installed on the attaching pool 3, the backflow pipe 9 being communicated with the bottom of the attaching pool 3, the backflow pipe 9 being communicated with the liquid adding device 8 through a pipeline, the defoaming liquid being recycled; further comprising a liquid level sensor 10, the liquid level sensor 10 being installed on the attaching pool 3, the liquid level sensor 10 being contacted by the defoaming liquid collected in the attaching pool 3, the liquid adding device 8 being opened to reuse the defoaming liquid in the attaching pool 3; further comprising a lifting push rod 13 and a spring 14, the lifting push rod 13 being installed on the bottom surface of the lower suction cup 7, the lifting push rod 13 being installed at the bottom of the groove of the lower mold 5, the lifting push rod 13 driving the lower suction cup 7 to lift, the spring 14 being connected between the bottom surface of the lower suction cup 7 and the bottom of the groove of the lower mold 5, the spring 14 elastically supporting the lower suction cup 7.

[0032] When working, the conveyor 1 conveys the curved screen, the common plastic protective layer film reel is loaded to the reel mechanism 4, and the protective layer film is laid on the lower mold 5, the lifting push rod 13 releases the lower suction cup 7, the spring 14 pushes the lower suction cup 7 to be high and reset, the lower suction cup 7 adsorbs the bottom surface of the protective layer, the lifting push rod 13 retracts the lower suction cup 7, the upper end surface of the lower suction cup 7 is flush with the groove bottom of the lower mold 5, the lower suction cup 7 is lowered to form a pit on the protective layer, the liquid adding device 8 controls the amount of defoaming liquid added, so as to adjust the depth of the defoaming liquid in the pit on the protective layer, so that the defoaming liquid can completely immerse the arc-shaped edge of the curved screen, the grabbing mechanism 2 grabs the curved screen conveyed on the conveyor 1 and presses the curved screen into the lamination pool 3, so that the surface of the curved screen is pressed onto the upper surface of the protective layer to fill the pit and extrude the defoaming liquid, thereby eliminating the air bubbles between the protective layer and the curved screen, the annular air bag 6 is inflated, the annular air bag 6 protrudes from the annular mounting slot of the lower mold 5, so as to tightly wrap the edge part of the protective layer to the edge arc-shaped part of the curved screen, eliminate the edge lifting of the protective layer and the curved screen, the defoaming liquid with adhesion can improve the lamination firmness of the protective layer, the common plastic protective film or layer with low cost is used, the lamination process is simple, the use cost is low, the edge lifting and air bubbles can be eliminated, the lamination is firm, the liquid level sensor 10 detects the depth of the defoaming liquid in the lamination pool 3, when the defoaming liquid in the lamination pool 3 contacts the liquid level sensor 10, the backflow pipe 9 conveys the excess defoaming liquid collected in the lamination pool 3 back to the liquid adding device 8 for reuse, reducing waste.

[0033] As shown in Figure 7 The reel mechanism 4 includes a driven reel 15 and a waste reel 16, the driven reel 15 is installed on one side of the lamination pool 3, the waste reel 16 is installed on the other side of the lamination pool 3, the driven reel 15 is used to load the protective layer reel, the waste reel 16 is used to load the waste reel, and the waste reel 16 is provided with a winding motor.

[0034] The winding motor on the waste reel 16 winds the waste according to the program gap, thereby pulling the protective layer to lay on the lower mold 5, realizing the conveying and lamination of the protective layer.

[0035] As shown in Figure 6The annular air bag 6 is located in the annular mounting slot and the arc-shaped matching part of the curved screen edge is provided with a semi-hard layer sheet, and the semi-hard layer sheet is arc-shaped matched with the curved screen edge. It also includes a nozzle 11 and an electrostatic generator 12, the nozzle 11 is provided with a plurality of nozzles, the input end of the nozzle 11 is provided with the electrostatic generator 12, the electrostatic generator 12 inputs static ions into the nozzle 11, the nozzle 11 sprays static wind to the surface of the curved screen through the plurality of nozzles, and the static adsorption firmness of the protective layer and the surface of the curved screen is enhanced; the grabbing mechanism 2 includes a conveying frame 17, a cross frame 18, a push cylinder 19 and an upper suction disc 20, the conveying frame 17 is transversely arranged above the conveyor 1 and the lamination pool 3, the conveying frame 17 is provided with a synchronous belt mechanism and a driving mechanism of the synchronous belt mechanism, the cross frame 18 is installed on the synchronous belt of the conveying frame 17, the upper end of the push cylinder 19 is rotationally connected with the cross frame 18, and the lower end of the push cylinder 19 is horizontally installed with the upper suction disc 20, the upper suction disc 20 is used for adsorbing the curved screen, and the synchronous belt of the conveying frame 17 drives the cross frame 18, the push cylinder 19 and the upper suction disc 20 to reciprocate above the conveyor 1 and the lamination pool 3; it also includes a heater 21, the heater 21 is installed on the lower end face of the upper suction disc 20, and the heater 21 is used for ironing the protective layer.

[0036] The conveying frame 17 drives the cross frame 18 to move above the conveyor 1 and the lamination pool 3, the cross frame 18 drives the push cylinder 19 and the upper suction disc 20 to move, when the upper suction disc 20 moves above the conveyor 1, the push cylinder 19 is elongated to drive the upper suction disc 20 to descend and adsorb the curved screen on the conveyor 1, when the upper suction disc 20 reaches above the lamination pool 3, the push cylinder 19 is elongated to push the upper suction disc 20 to descend, and the curved screen is pressed into the groove of the lower mold 5, by arranging the semi-hard layer sheet on the annular air bag 6, the tightness effect of the curved screen arc-shaped edge can be improved when the curved screen and the protective layer are laminated, the heater 21 generates heat to iron the protective layer, so that the protective layer is hot formed, the lamination effect of the protective layer is improved, after the lamination of the protective layer is completed, the upper suction disc 20 puts the curved screen back on the conveyor 1.

[0037] As Figures 1 to 10As shown, the curved screen protective layer processing and attaching equipment of the present application, in operation, firstly, the conveyor 1 conveys the curved screen, the common plastic protective layer film reel is loaded onto the driven reel 15 and the waste reel 16, and the protective layer film is laid on the lower mold 5, the lifting push rod 13 lifts the lower suction plate 7 to adsorb the bottom of the protective layer, the lower suction plate 7 is lowered to form a pit on the protective layer, the liquid adding device 8 injects the defoaming liquid into the pit, then the conveying frame 17 drives the cross frame 18 to move above the conveyor 1 and the attaching pool 3, the cross frame 18 drives the push cylinder 19 and the upper suction plate 20 to move, when the upper suction plate 20 moves above the conveyor 1, the push cylinder 19 is elongated to drive the upper suction plate 20 to descend to adsorb and grab the curved screen on the conveyor 1, the nozzle 11 sprays the electrostatic wind to the surface of the curved screen through multiple nozzles during the movement of the curved screen, the electrostatic adsorption firmness of the protective layer and the surface of the curved screen is enhanced, then when the upper suction plate 20 reaches above the attaching pool 3, the push cylinder 19 is elongated to push the upper suction plate 20 to descend, the curved screen is pressed into the groove of the lower mold 5, the surface of the curved screen is pressed onto the upper surface of the protective layer to fill the pit, the defoaming liquid is extruded out, the depth of the defoaming liquid is adjusted, so that the defoaming liquid can completely immerse the arc-shaped edge of the curved screen, thereby eliminating the bubbles between the protective layer and the curved screen, the annular air bag 6 is inflated, the annular air bag 6 protrudes from the annular mounting slot of the lower mold 5, so that the edge part of the protective layer is tightly wrapped onto the edge arc-shaped part of the curved screen, the edge lifting of the protective layer and the curved screen is eliminated, the heater 21 is heated to iron the protective layer, so that the protective layer is hot plastic formed, and finally the protective layer is attached, the curved screen is placed back onto the conveyor 1 by the upper suction plate 20.

[0038] The main functions realized by the present application are:

[0039] 1. The common plastic protective film or layer with low cost is used, the attaching process is simple, the attachment is firm, the use cost is low, and the edge lifting and bubbles can be eliminated;

[0040] 2. The defoaming liquid with adhesion can improve the attachment firmness of the protective layer;

[0041] 3. The electrostatic nozzle is adopted to enhance the electrostatic adsorption strength of the protective layer;

[0042] 4. The hot plastic forming function is provided, and the attaching effect is good.

[0043] The installation mode, connection mode or setting mode of the curved screen protective layer processing and attaching equipment is a common mechanical mode, and any mode that can achieve the beneficial effects can be implemented. The conveyor 1, grabbing mechanism 2, reel mechanism 4, lower suction disc 7, liquid adding device 8, liquid level sensor 10, electrostatic generator 12, lifting push rod 13, spring 14, conveying frame 17, push cylinder 19, upper suction disc 20 and heater 21 of the curved screen protective layer processing and attaching equipment are purchased on the market, and the technical personnel in the industry only need to install and operate according to the attached instruction manual, without the creative labor of the technical personnel in the field.

[0044] All technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the present application belongs. The terms used in the specification of the present application herein are only for the purpose of describing specific embodiments and are not intended to limit the present application. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0045] The above is only the preferred embodiment of the present application, and it should be pointed out that for those skilled in the art, without departing from the technical principles of the present application, a number of improvements and modifications can be made, and these improvements and modifications should be considered as the protection scope of the present application.

Claims

1. A curved screen protective layer processing and bonding device, comprising a conveyor (1), a gripping mechanism (2), a bonding pool (3), and a reel mechanism (4), wherein the conveyor (1) conveys the curved screen, the gripping mechanism (2) is disposed between the conveyor (1) and the bonding pool (3), the gripping mechanism (2) grips the curved screen conveyed on the conveyor (1) into the bonding pool (3), and the reel mechanism (4) is mounted on the bonding pool (3) and conveys a protective layer reel; characterized in that, It also includes a lower mold (5), an annular airbag (6) and a lower suction cup (7). The lower mold (5) is installed in the bonding pool (3). The protective layer is laid flat on the upper part of the bonding pool (3). The lower mold (5) is provided with a groove. The bottom of the groove is provided with an annular mounting groove. The annular airbag (6) is installed in the annular mounting groove. The part of the annular airbag (6) located at the opening of the annular mounting groove matches the arc of the edge of the curved screen. The lower suction cup (7) is provided in a lifting manner at the bottom of the groove of the lower mold (5). The lower suction cup (7) adsorbs the bottom of the protective layer and pulls it down to form a pit. Defoaming liquid is added to the pit. The defoaming liquid is an insulating liquid. The gripping mechanism (2) presses the curved screen onto the protective layer. The curved screen displaces the defoaming liquid to avoid generating bubbles. The annular airbag (6) inflates and expands to wrap the edge of the protective layer tightly around the arc of the screen edge.

2. The curved screen protective layer processing and bonding equipment as described in claim 1, characterized in that, It also includes a liquid dispenser (8), which is installed on the bonding pool (3). The liquid dispenser (8) adds defoaming liquid into the pits formed on the protective layer and adjusts the depth of the defoaming liquid.

3. The curved screen protective layer processing and bonding equipment as described in claim 2, characterized in that, It also includes a return pipe (9), which is installed on the bonding tank (3). The return pipe (9) is connected to the bottom of the bonding tank (3), and the return pipe (9) is connected to the liquid dispenser (8) through a pipeline to recycle the defoaming liquid.

4. The curved screen protective layer processing and bonding equipment as described in claim 2, characterized in that, It also includes a liquid level sensor (10), which is installed on the bonding tank (3). When the defoaming liquid collected in the bonding tank (3) comes into contact with the liquid level sensor (10), the liquid dispenser (8) is turned on to reuse the defoaming liquid in the bonding tank (3).

5. The curved screen protective layer processing and bonding equipment as described in claim 1, characterized in that, The annular airbag (6) is provided with a semi-rigid layer at the arc-shaped matching part of the annular mounting slot and the edge of the curved screen, and the semi-rigid layer matches the arc shape of the edge of the curved screen.

6. The curved screen protective layer processing and bonding equipment as described in claim 1, characterized in that, It also includes a nozzle (11) and an electrostatic generator (12). The nozzle (11) is provided with multiple nozzles, and the electrostatic generator (12) is provided at the input end of the nozzle (11). The electrostatic generator (12) inputs electrostatic ions into the nozzle (11), and the nozzle (11) sprays electrostatic wind onto the surface of the curved screen through multiple nozzles to enhance the electrostatic adsorption strength between the protective layer and the surface of the curved screen.

7. The curved screen protective layer processing and bonding equipment as described in claim 1, characterized in that, It also includes a lifting push rod (13) and a spring (14). The lifting push rod (13) is installed on the bottom surface of the lower suction cup (7) and the lower mold (5) is installed at the bottom of the groove. The lifting push rod (13) drives the lower suction cup (7) to rise and fall. The two ends of the spring (14) are connected to the bottom surface of the lower suction cup (7) and the bottom of the groove of the lower mold (5). The spring (14) elastically supports the lower suction cup (7).

8. The curved screen protective layer processing and bonding equipment as described in claim 1, characterized in that, The reel mechanism (4) includes a driven reel (15) and a waste reel (16). The driven reel (15) is installed on one side of the bonding pool (3), and the waste reel (16) is installed on the other side of the bonding pool (3). The driven reel (15) is used to load the protective layer reel, and the waste reel (16) is used to load the waste reel. A reel motor is installed on the waste reel (16).

9. The curved screen protective layer processing and bonding equipment as described in claim 1, characterized in that, The gripping mechanism (2) includes a conveyor frame (17), a cross frame (18), a push cylinder (19), and an upper suction cup (20). The conveyor frame (17) is mounted on the conveyor (1) and the bonding pool (3). A synchronous belt mechanism and a drive mechanism of the synchronous belt mechanism are provided on the conveyor frame (17). The cross frame (18) is mounted on the synchronous belt of the conveyor frame (17). The upper end of the push cylinder (19) is rotatably connected to the cross frame (18). The lower end of the push cylinder (19) is horizontally mounted with the upper suction cup (20). The upper suction cup (20) is used to adsorb the curved screen. The synchronous belt of the conveyor frame (17) drives the cross frame (18), the push cylinder (19), and the upper suction cup (20) to reciprocate above the conveyor (1) and the bonding pool (3).

10. The curved screen protective layer processing and bonding equipment as described in claim 9, characterized in that, It also includes a heater (21), which is installed on the lower end face of the upper suction cup (20) and is used to iron the protective layer.

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