A water-glue frame pasting device and method for a touch display screen

Abstract

The present invention relates to the technical field of display screen lamination, and discloses a water glue frame pasting device and method for a touch display screen, wherein a water glue frame pasting device for a touch display screen comprises a bottom plate, and also comprises a pair of support frames 1 arranged on the bottom plate, a pressure roller rotatably arranged on the pair of support frames 1, a pair of support frames 2 arranged on one side of the pair of support frames, a rotating shaft rotatably arranged on the pair of support frames 2, an adsorption plate connected to the rotating shaft, a bearing plate slidably arranged on the bottom plate, and a driving component connected to the pressure roller, the driving component drives the pressure roller to rotate, and the outer wall of the pressure roller is an elastic material. The water glue frame pasting device for the touch display screen adopts an inclined linear lamination process, and has obvious advantages in terms of uniform pressure distribution, reducing bubbles, process flexibility, adapting to complex shapes and reducing mechanical stress, and is particularly suitable for screen lamination processes with high requirements for bonding quality and reliability.

Description

Technical Field

[0001] The present invention relates to the technical field of display screen lamination, and in particular to a water-glue frame pasting device and method for a touch display screen. Background Art

[0002] The water glue frame sticking device for display screens is a device specially used to stick a liquid crystal display (LCD) to its outer frame (usually made of glass or plastic). The device uses water glue (also known as liquid optical clear adhesive, Liquid Optical Clear Adhesive, LOCA) as an adhesive and is mainly used in the assembly process of display screens of mobile phones, tablets and other electronic devices.

[0003] The patent with the patent publication number CN108869487A discloses a tablet screen gluing and bonding device, including a frame, a loading slide and a unloading slide respectively arranged on both sides of the frame, a gluing mechanism installed on the frame for gluing the screen, a manipulator installed on the frame at one side of the gluing mechanism and transmitting to the loading slide, the unloading slide and the gluing mechanism, the loading slide, the unloading slide and the gluing mechanism are all installed with a fixture for fixing the screen, and a pressing mechanism for pressing the screen is provided on one side of the unloading slide; the present invention has high overall working efficiency, strong stability and reliability, high degree of automation, and saves manpower and material resources.

[0004] The prior art has the following defects:

[0005] Current technology usually uses vertical pressing to bond the screen after glue is applied. This pressing method is prone to produce bubbles. If the screen is not flat, the screen is unevenly stressed during the pressing process, and the pressing quality is poor, resulting in uneven thickness of the gap between the touch screen and the LCD screen, and different refractive indices for light passing through the gap, affecting image quality. Summary of the invention

[0006] In view of the above problems in the prior art, a water-glue frame pasting device and method for a touch display screen are proposed.

[0007] In one aspect of the present application, a water-glue frame pasting device for a touch display screen is provided, the purpose of which is to roll-press the touch screen with a liquid crystal screen under a slight tilt, reduce the appearance of bubbles, make the thickness of the pressing surface uniform, and improve the pressing quality.

[0008] The technical solution of the present invention is: a water glue frame pasting device for a touch display screen, comprising a bottom plate, a pair of support frames 1 arranged on the bottom plate, a pressure roller rotatably arranged on the pair of support frames 1, a pair of support frames 2 arranged on one side of the pair of support frames, a rotating shaft rotatably arranged on the pair of support frames 2, an adsorption plate connected to the rotating shaft, a bearing plate slidably arranged on the bottom plate, and a driving component connected to the pressure roller, wherein the driving component drives the pressure roller to rotate, and the outer wall of the pressure roller is an elastic material;

[0009] The carrying plate is provided with a carrying slot, in which a liquid crystal screen is arranged;

[0010] The adsorption plate is provided with an adsorption groove, a touch screen is provided in the adsorption groove, the adsorption plate is hollow, an adsorption hole is provided on the adsorption groove, the adsorption hole is connected to the inner cavity of the adsorption plate, and a connecting pipe is provided on the adsorption plate, the connecting pipe is connected to a vacuum pump;

[0011] The pressure roller is in squeeze contact with the carrying plate, and the rotation of the pressure roller drives the carrying plate to slide on the bottom plate. When the carrying plate is in contact with the adsorption plate, the angle between the liquid crystal screen on the carrying plate and the touch screen on the adsorption plate is 10°-20°.

[0012] By adopting the above scheme, the touch screen is tilted through the water-glue frame sticking device of the touch display screen, and the carrier plate carrying the LCD screen is squeezed and transported under the pressing roller by the pressing roller. In this process, the touch screen adsorbed on the adsorption plate at an angle is bonded to the LCD screen and squeezed through the pressing roller; compared with the existing surface pressing process, linear pressing has obvious advantages in uniform pressure distribution, reducing bubbles, process flexibility, adapting to complex shapes and reducing mechanical stress, and is particularly suitable for screen pressing processes with high requirements on bonding quality and reliability.

[0013] Furthermore, the driving assembly includes a gearbox arranged on the support frame 1, the gearbox is transmission-connected to the pressure roller, and a motor is transmission-connected to the gearbox.

[0014] By adopting the above solution, the driving assembly is used to provide the pressure roller with a slow and uniform rotation.

[0015] Furthermore, a dovetail groove is provided on the upper surface of the bottom plate perpendicular to the direction of the pressure roller, and a dovetail bar is provided at the bottom of the bearing plate, and the dovetail bar slides in the dovetail groove.

[0016] By adopting the above solution, the dovetail bar slides in the dovetail groove to limit the bearing plate from sliding on the bottom plate, and the limiting sliding direction is perpendicular to the axis of the pressure roller.

[0017] Furthermore, a notch is provided at the edge of the bearing plate, and a limiting block is provided on the bottom plate, and the notch and the limiting block are located in corresponding positions.

[0018] By adopting the above solution, the notch is engaged with the limit block to limit the load-bearing plate from sliding to the edge of the bottom plate and then continuing to slide.

[0019] Furthermore, a clamping ring is provided on the rotating shaft, and the clamping ring fixes the adsorption plate and the rotating shaft through bolts.

[0020] By adopting the above solution, the adsorption plate is fixedly connected to the rotating shaft through the clamping ring.

[0021] Furthermore, a rotating hole is provided on the second support frame, the rotating shaft is provided in the rotating hole, a quarter-arc stopper is provided in the rotating hole, a quarter-arc shaft is provided at the end of the rotating shaft, and the quarter-arc stopper is against the quarter-arc shaft.

[0022] By adopting the above scheme, the quarter-arc block cooperates with the quarter-arc shaft. In the pressed state, the quarter-arc block and the quarter-arc shaft are against each other. At this time, the supporting plate and the adsorption plate are overlapped. After the adsorption plate rotates 180° around the rotation axis, the quarter-arc block and the quarter-arc shaft are against each other again. At this time, it is in a ready state, and the adsorption groove is flipped upward to facilitate the placement of the touch screen.

[0023] Furthermore, a clamping assembly is provided in the bearing groove;

[0024] The clamping assembly includes a pair of clamping rods arranged on both sides of the liquid crystal screen, a rack arranged on the clamping rods, a support shaft arranged at the bottom of the bearing groove, a gear rotatably arranged on the support shaft, an extrusion hole arranged on the wall of the bearing groove, and a spring arranged in the extrusion hole;

[0025] A pair of the racks are meshed with the gear, and the spring presses the clamping rod.

[0026] By adopting the above scheme, a clamping assembly is set up, and a pair of clamping plates are clamped equidistantly towards each other, so that screens of different sizes can be clamped in the middle of the bearing groove, so that the screen is always perpendicular to the pressing roller and in the middle of the pressing roller during pressing, thereby ensuring the pressing quality.

[0027] Furthermore, the present invention also provides a method for attaching a water-gel frame to a touch display screen, comprising the following steps:

[0028] Step 1: Use a dust-free cloth and alcohol to clean the inner surface of the upper iron frame to ensure there is no dust, grease or other impurities;

[0029] Step 2: Use glue dispensing equipment to dispense glue on the inner surface of the upper iron frame, and cure it in a UV curing device to form the water glue;

[0030] Step 3: Assemble the upper iron frame with the LCD screen after the water glue is applied and cured;

[0031] Step 4: Use a dust-free cloth and detergent to clean the LCD screen surface and touch screen surface to ensure there is no dust, fingerprints or other stains;

[0032] Step 5: Place the touch screen in the adsorption groove and the LCD screen in the bearing groove, and ensure accurate alignment before bonding.

[0033] Step 6: After the bonding is completed, carefully check whether there are bubbles, offset or other problems, and then perform a functional test to ensure that the touch screen and LCD screen are working properly.

[0034] By adopting the above scheme, compared with the direct assembly process, this new process can isolate and stick to tiny foreign matter and dust, avoiding the appearance of new foreign matter during the customer's later use; compared with the process of affixing double-sided tape or double-sided foam tape, water glue is easier to disassemble, and has lower production costs and higher efficiency; water glue has an elastic modulus, which can prevent the LCD screen from being squeezed and whitened after the frame is affixed.

[0035] Furthermore, in the step five, the vacuum pump is turned on to adsorb the touch screen in the adsorption groove, the adsorption plate is overlapped on the carrier plate, the LCD screen is in contact with the touch screen, the driving component is started to rotate the pressure roller, the pressure roller rotates to squeeze the carrier plate so that the carrier plate slides under the pressure roller, and the pressure roller presses the LCD screen and the touch screen at the same time.

[0036] By adopting the above solution, through linear pressing, the liquid crystal screen and the touch screen are subjected to uniform force during the pressing process and bubbles are not easily generated.

[0037] Beneficial effects of the present invention:

[0038] The touch screen is tilted by the water-glue frame pasting device of the touch display screen, and the carrier plate carrying the LCD screen is squeezed and transported under the pressing roller by the pressing roller. In this process, the touch screen adsorbed on the adsorption plate at an angle is bonded to the LCD screen and squeezed through the pressing roller. Compared with the existing surface pressing process, linear pressing has obvious advantages in uniform pressure distribution, reducing bubbles, process flexibility, adapting to complex shapes and reducing mechanical stress, and is particularly suitable for screen pressing processes with high requirements on bonding quality and reliability. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] Figure 1 A three-dimensional diagram of a water-gel frame sticker device for a touch display screen of the present invention;

[0040] Figure 2 For the present invention Figure 1 The opening state of the adsorption plate;

[0041] Figure 3 For the present invention Figure 2 Stereoscopic images of LCD screens and touch screens are not included;

[0042] Figure 4 A schematic diagram of an adsorption plate in a water-gel frame sticking device for a touch display screen of the present invention;

[0043] Figure 5 For the present invention Figure 4 Structural diagrams of other perspectives;

[0044] Figure 6 For the present invention Figure 4 Sectional view at the middle BB;

[0045] Figure 7 It is a schematic diagram of a carrier plate in a water-glue frame pasting device for a touch display screen of the present invention;

[0046] Figure 8 For the present invention Figure 7 Structural diagrams of other perspectives;

[0047] Fig. 9 For the present invention Figure 7 Exploded diagram of

[0048] Fig.10 For the present invention Figure 1 Sectional view at AA;

[0049] Fig.11 For the present invention Fig.10 Schematic diagram of screen pressing.

[0050] 1. Bottom plate; 2. Support frame 1; 3. Pressure roller; 4. Support frame 2; 5. Rotating shaft; 6. Adsorption plate; 7. Loading plate; 8. Driving assembly; 9. Loading slot; 10. LCD screen; 11. Adsorption slot; 12. Touch screen; 13. Adsorption hole; 14. Connecting pipe; 15. Gearbox; 16. Motor; 17. Dovetail groove; 18. Dovetail strip; 19. Notch; 20. Limit block; 21. Snap ring; 22. Quarter arc block; 23. Quarter arc shaft; 24. Clamping assembly; 25. Clamping rod; 26. Rack; 27. Support shaft; 28. Gear; 29. ​​Extrusion hole; 30. Spring. DETAILED DESCRIPTION

[0051] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings. Example

[0052] Reference Figure 1-11, which is the first embodiment of the present invention, provides a water glue frame sticking device for a touch display screen, including a bottom plate 1, and also including a pair of support frames 1 2 arranged on the bottom plate 1, a pressure roller 3 rotatably arranged on the pair of support frames 1 2, a pair of support frames 2 4 arranged on the side of the pair of support frames 1 2, a rotating shaft 5 rotatably arranged on the pair of support frames 2 4, an adsorption plate 6 connected to the rotating shaft 5, a bearing plate 7 slidably arranged on the bottom plate 1, and a driving component 8 connected to the pressure roller 3, the driving component 8 drives the pressure roller 3 to rotate, and the outer wall of the pressure roller 3 is made of elastic material; a A carrying groove 9 is provided with a liquid crystal screen 10; an adsorption groove 11 is provided on the adsorption plate 6, a touch screen 12 is provided in the adsorption groove 11, the adsorption plate 6 is hollow, an adsorption hole 13 is opened on the adsorption groove 11, the adsorption hole 13 is connected to the inner cavity of the adsorption plate 6, a connecting pipe 14 is provided on the adsorption plate 6, and the connecting pipe 14 is connected to a vacuum pump; the pressure roller 3 is in extrusion contact with the carrying plate 7, and the pressure roller 3 rotates to drive the carrying plate 7 to slide on the bottom plate 1, and when the carrying plate 7 is in contact with the adsorption plate 6, the angle between the liquid crystal screen 10 on the carrying plate 7 and the touch screen 12 on the adsorption plate 6 is 10°-20°.

[0053] Specifically, the pressing roller 3 is in elastic extrusion contact with the carrying plate 7, the upper surface of the liquid crystal screen 10 is slightly higher than the upper surface of the carrying plate 7, and the angle between the liquid crystal screen 10 on the carrying plate 7 and the touch screen 12 on the adsorption plate 6 is preferably 12°. If the angle is too large, the touch screen 12 is prone to creases, and if the angle is too small, it will not be able to remove bubbles. During the pressing process, the friction force of the pressing roller 3 on the touch screen 12 is greater than the adsorption force of the adsorption hole 13 on the touch screen 12, so that during the pressing process, the touch screen 12 gradually separates from the adsorption groove 11 (refer to Fig.11); Preferably, a vacuum check valve can be provided at the adsorption hole 13, so that each adsorption hole 13 can be independently controlled, and the passage is closed when it is separated from the touch screen 12 to prevent the adsorption force from decreasing; Compared with the common vertical surface lamination process, linear lamination has some advantages over planar lamination: first, uniform pressure distribution, by linear rolling or moving the pressure head to gradually apply pressure, it can ensure that the entire screen surface is uniformly stressed, reduce stress concentration, and avoid damage to the screen, while planar lamination: applying pressure at one time may cause uneven pressure in some areas, especially when there are slight unevenness between the liquid crystal screen 10 and the touch screen 12; secondly, reduce the generation of bubbles, linear lamination uses gradual lamination to more effectively drive out air, reduce the generation of bubbles, and improve the bonding quality, while planar lamination, when pressure is applied simultaneously over a large area, air is more likely to be trapped in the middle, making it difficult for bubbles to be discharged; finally, reduce mechanical stress, linear lamination, gradual application of pressure, reduce instantaneous impact on the screen and other substrates, reduce mechanical stress, and reduce the risk of damage; while planar lamination applies a large pressure at one time, which may cause large mechanical stress to precision components and increase the possibility of damage. In general, linear lamination has obvious advantages in terms of uniform pressure distribution, reduction of bubbles, process flexibility, adaptation to complex shapes and reduction of mechanical stress. It is particularly suitable for screen lamination processes with high requirements on bonding quality and reliability.

[0054] The touch screen 12 is tilted by the water-glue frame pasting device of the touch display screen, and the carrier plate 7 carrying the liquid crystal screen 10 is squeezed and conveyed under the pressing roller 3 by the pressing roller 3. In this process, the touch screen 12 tiltedly adsorbed on the adsorption plate 6 is adhered to the liquid crystal screen 10 and squeezed through the pressing roller 3; compared with the existing surface pressing process, linear pressing has obvious advantages in uniform pressure distribution, reducing bubbles, process flexibility, adapting to complex shapes and reducing mechanical stress, and is particularly suitable for screen pressing processes with high requirements on bonding quality and reliability.

[0055] Reference Figure 2 The driving assembly 8 includes a gearbox 15 arranged on the support frame 2, the gearbox 15 is transmission-connected to the pressure roller 3, and a motor 16 is transmission-connected to the gearbox 15.

[0056] The driving assembly 8 is used to provide the pressure roller 3 with a slow and uniform rotation.

[0057] Reference Figure 1 and Figure 8 A dovetail groove 17 is provided on the upper surface of the bottom plate 1 perpendicular to the direction of the pressure roller 3 , and a dovetail bar 18 is provided at the bottom of the carrying plate 7 , and the dovetail bar 18 slides in the dovetail groove 17 .

[0058] The dovetail bar 18 slides in the dovetail groove 17 to limit the bearing plate 7 from sliding on the bottom plate 1 , and the limiting sliding direction is perpendicular to the axis of the pressure roller 3 .

[0059] Reference Figure 1 and Figure 7 A notch 19 is provided at the edge of the bearing plate 7, and a limiting block 20 is provided on the bottom plate 1, and the positions of the notch 19 and the limiting block 20 correspond to each other.

[0060] The notch 19 is engaged with the limit block 20 to limit the carrying plate 7 from sliding to the edge of the bottom plate 1 and then continuing to slide.

[0061] Reference Figure 4 A clamping ring 21 is provided on the rotating shaft 5, and the clamping ring 21 fixes the adsorption plate 6 and the rotating shaft 5 through bolts.

[0062] The adsorption plate 6 is fixedly connected to the rotating shaft 5 via the clamping ring 21 .

[0063] Reference Figure 3-4 A rotating hole is provided on the support frame 2 4 , a rotating shaft 5 is provided in the rotating hole, a quarter arc stopper 22 is provided in the rotating hole, a quarter arc shaft 23 is provided at the end of the rotating shaft 5 , and the quarter arc stopper 22 and the quarter arc shaft 23 are against each other.

[0064] Specifically, the quarter-arc shaft 23 is arranged at both ends of the rotating shaft 5, the quarter-arc block 22 is arranged at the opening of the rotating hole and the quarter-arc block 22 is against the quarter-arc shaft 23, so that the rotating shaft 5 can only rotate 180° in the rotating hole.

[0065] Through the cooperation of the quarter-arc block 22 and the quarter-arc shaft 23, in the pressed state, the quarter-arc block 22 and the quarter-arc shaft 23 are against each other, and the supporting plate 7 and the adsorption plate 6 are overlapped. After the adsorption plate 6 rotates 180° around the rotating axis 5, the quarter-arc block 22 and the quarter-arc shaft 23 are against each other again, and are in a ready state. The adsorption groove 11 is flipped upward to facilitate the placement of the touch screen 12.

[0066] Reference Figure 7-9 A clamping assembly 24 is provided in the bearing groove 9; the clamping assembly 24 includes a pair of clamping rods 25 provided on both sides of the liquid crystal screen 10, a rack 26 provided on the clamping rods 25, a support shaft 27 provided at the bottom of the bearing groove 9, a gear 28 rotatably provided on the support shaft 27, an extrusion hole 29 provided on the groove wall of the bearing groove 9, and a spring 30 provided in the extrusion hole 29;

[0067] A pair of racks 26 mesh with a gear 28 , and a spring 30 presses the clamping rod 25 .

[0068] Specifically, a pair of clamping rods 25 are arranged on the wide sides of the bearing groove 9, a rack 26 is fixed on each clamping rod 25, and the rack 26 is perpendicular to the clamping rod 25, and a pair of racks 26 are meshed with the gear 28 from both sides, so that the pair of racks 26 produce equidistant and opposite movements, and two extrusion holes 29 are set on each side of the wide side of the bearing groove 9. A spring 30 is set in the extrusion hole 29, so that the pair of clamping rods 25 are always subjected to the force of relative movement, so as to clamp screens of different widths.

[0069] By setting the clamping assembly 24 and a pair of clamping plates equidistantly clamping each other, screens of different sizes can be clamped in the middle of the bearing groove 9, so that the screen is always perpendicular to the pressing roller 3 and in the middle of the pressing roller 3 during pressing, thereby ensuring the pressing quality. Example

[0070] Reference Figure 1-11 , which is a second embodiment of the present invention, provides: a method for attaching a water-glue frame to a touch display screen, using a water-glue frame attaching device for a touch display screen, comprising the following steps:

[0071] Step 1: Use a dust-free cloth and alcohol to clean the inner surface of the upper iron frame to ensure there is no dust, grease or other impurities;

[0072] Step 2: Use glue dispensing equipment to dispense glue on the inner surface of the upper iron frame, and cure it in a UV curing device to form the water glue;

[0073] Step 3: Assemble the upper iron frame with the glue applied and cured and the LCD screen 10;

[0074] Step 4: Use a dust-free cloth and a cleaning agent to clean the surface of the LCD screen 10 and the touch screen 12 to ensure that there is no dust, fingerprints or other stains;

[0075] Step 5: Place the touch screen 12 in the adsorption groove 11 and the LCD screen 10 in the bearing groove 9, and make sure they are aligned accurately before laminating;

[0076] Step 6: After the bonding is completed, carefully check whether there are bubbles, offset or other adverse conditions, and then perform a functional test to ensure that the touch screen 12 and the LCD screen 10 are working properly.

[0077] Compared with the direct assembly process, this new process can isolate and stick to tiny foreign matter and dust, avoiding the appearance of new foreign matter during the customer's later use; compared with the process of affixing double-sided tape or double-sided foam tape, water glue is easier to disassemble, and has lower production costs and higher efficiency; water glue has an elastic modulus, which can prevent the LCD screen 10 from being squeezed and whitened after the frame is affixed.

[0078] In step five, turn on the vacuum pump to adsorb the touch screen 12 into the adsorption groove 11, overlap the adsorption plate 6 on the supporting plate 7, make the LCD screen 10 contact the touch screen 12, start the driving assembly 8 to rotate the pressure roller 3, and the pressure roller 3 rotates to squeeze the supporting plate 7 so that the supporting plate 7 slides under the pressure roller 3, and at the same time, the pressure roller 3 presses the LCD screen 10 and the touch screen 12.

[0079] Through linear lamination, the liquid crystal screen 10 and the touch screen 12 are evenly stressed during the lamination process and bubbles are not easily generated.

[0080] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A water-based adhesive frame device for a touch display screen, comprising a bottom plate (1), characterized in that: It also comprises a pair of support frames (2) arranged on the bottom plate (1), a pressure roller (3) rotatably arranged on the pair of support frames (2), a pair of support frames (4) arranged on the side of the pair of support frames (2), a rotating shaft (5) rotatably arranged on the pair of support frames (4), an adsorption plate (6) connected to the rotating shaft (5), a bearing plate (7) slidably arranged on the bottom plate (1), and a driving component (8) connected to the pressure roller (3), wherein the driving component (8) drives the pressure roller (3) to rotate, and the outer wall of the pressure roller (3) is made of elastic material; The carrying plate (7) is provided with a carrying groove (9), and a liquid crystal screen (10) is arranged in the carrying groove (9); The adsorption plate (6) is provided with an adsorption groove (11), a touch screen (12) is provided in the adsorption groove (11), the adsorption plate (6) is hollow, an adsorption hole (13) is provided on the adsorption groove (11), the adsorption hole (13) is connected to the inner cavity of the adsorption plate (6), and a connecting pipe (14) is provided on the adsorption plate (6), the connecting pipe (14) is connected to a vacuum pump; The pressing roller (3) is in squeezing contact with the carrying plate (7), and the pressing roller (3) rotates to drive the carrying plate (7) to slide on the bottom plate (1). When the carrying plate (7) is in contact with the adsorption plate (6), the angle between the liquid crystal screen (10) on the carrying plate (7) and the touch screen (12) on the adsorption plate (6) is 10°-20°; The support frame 2 (4) is provided with a rotation hole, the rotation shaft (5) is arranged in the rotation hole, a quarter arc stopper (22) is arranged in the rotation hole, a quarter arc shaft (23) is arranged at the end of the rotation shaft (5), and the quarter arc stopper (22) abuts against the quarter arc shaft (23).

2. The water-glue frame sticker device for a touch display screen according to claim 1, characterized in that: The driving assembly (8) comprises a gearbox (15) arranged on the support frame (2), the gearbox (15) being transmission-connected to the pressure roller (3), and a motor (16) being transmission-connected to the gearbox (15).

3. The water-glue frame sticker device for a touch display screen according to claim 1, characterized in that: A dovetail groove (17) is provided on the upper surface of the bottom plate (1) in a direction perpendicular to the pressure roller (3), and a dovetail bar (18) is provided at the bottom of the bearing plate (7), wherein the dovetail bar (18) slides in the dovetail groove (17).

4. The water-glue frame sticker device for a touch display screen according to claim 1, characterized in that: A notch (19) is provided at the edge of the bearing plate (7), a limiting block (20) is provided on the bottom plate (1), and the notch (19) and the limiting block (20) are located in corresponding positions.

5. The water-glue frame sticker device for a touch display screen according to claim 1, characterized in that: A clamping ring (21) is provided on the rotating shaft (5), and the clamping ring (21) is used to fix the adsorption plate (6) and the rotating shaft (5) together via bolts.

6. The water-glue frame sticker device for a touch display screen according to claim 1, characterized in that: A clamping assembly (24) is arranged in the bearing groove (9); The clamping assembly (24) comprises a pair of clamping rods (25) arranged on both sides of the liquid crystal screen (10), a rack (26) arranged on the clamping rods (25), a support shaft (27) arranged at the bottom of the bearing groove (9), a gear (28) rotatably arranged on the support shaft (27), an extrusion hole (29) arranged on the groove wall of the bearing groove (9), and a spring (30) arranged in the extrusion hole (29); The pair of racks (26) mesh with the gear (28), and the spring (30) presses the clamping rod (25).

7. A method for attaching a water-glue frame to a touch display screen, using the water-glue frame attaching device for a touch display screen as claimed in claim 1, characterized in that: The following steps are involved: Step 1: Use a dust-free cloth and alcohol to clean the inner surface of the upper iron frame to ensure there is no dust, grease or other impurities; Step 2: Use glue dispensing equipment to dispense glue on the inner surface of the upper iron frame, and cure it in a UV curing device to form the water glue; Step 3: Assemble the upper iron frame with the liquid crystal screen (10) after the water-based glue is applied and cured; Step 4: Use a dust-free cloth and detergent to clean the surface of the LCD screen (10) and the touch screen (12), ensuring that there is no dust, fingerprints or other stains. Step 5: Place the touch screen (12) in the adsorption groove (11), and place the liquid crystal screen (10) in the bearing groove (9), and ensure that they are aligned accurately before bonding; Step 6: After the bonding is completed, carefully check whether there are bubbles, offset or other defects, and then perform a functional test to ensure that the touch screen (12) and the LCD screen (10) are working properly.

8. The method for attaching a water-based adhesive frame to a touch display screen according to claim 7, characterized in that: In the step five, the vacuum pump is turned on to allow the touch screen (12) to be adsorbed in the adsorption groove (11), the adsorption plate (6) is overlapped on the carrier plate (7), the liquid crystal screen (10) is brought into contact with the touch screen (12), the driving assembly is started to rotate the pressing roller (3), the pressing roller (3) rotates to squeeze the carrier plate (7) so that the carrier plate (7) slides through the bottom of the pressing roller (3), and at the same time, the pressing roller (3) presses the liquid crystal screen (10) and the touch screen (12).

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