Equipment capable of enabling cover plate glass and screen to be pasted more smoothly and pasting method

Abstract

The invention provides equipment capable of enabling cover plate glass and a screen to be pasted more smoothly, the equipment comprises a bearing jig, a fixing mechanism, a gluing mechanism and a vacuum mechanism, the bearing jig is used for bearing the cover plate glass, the fixing mechanism is used for fixing a part of the screen, and the gluing mechanism is used for gluing the cover plate glass. The gluing mechanism comprises a sheet-shaped glue outlet pipe and a moving mechanism, the sheet-shaped glue outlet pipe is arranged between the cover plate glass and the screen, the sheet-shaped glue outlet pipe is provided with a glue outlet perpendicular to the attaching direction, and the moving mechanism is used for driving the sheet-shaped glue outlet pipe to move in the attaching direction. And the vacuum mechanism is used for generating negative pressure in a space enclosed by the cover plate glass, the screen and the glue outlet. And the production requirements of high-precision electronic equipment are met.

Description

Technical Field

[0001] The present invention relates to the technical field of screen and cover glass bonding, and in particular to a device and a bonding method for making the cover glass and the screen bonded more smoothly. Background Art

[0002] The cover glass and the screen need to be pre-pasted together before being assembled to the electronic device. In the prior art, in order to allow the cover glass and the screen to be pasted together, double-sided tape is pasted on one side of the screen. Before pasting, the protective film of the double-sided tape is torn off, and then pasted. For example, the bonding device and bonding method for curved cover glass and flat display screen disclosed in CN105398181A require the bonding adhesive to be pressed on the curved cover glass in advance. There are some problems with using bonding adhesive to bond the cover glass and the screen. First, the bonding adhesive has a certain thickness and has no fluidity, which will cause wrinkles in the bonding adhesive during bonding, which will seriously affect the firmness and flatness of the bonding; second, when the screen is bonded for a long time, the bonding adhesive may age and lose its stickiness due to time reasons, and then the screen needs to be discarded or the bonding adhesive needs to be replaced. Summary of the invention

[0003] Therefore, it is necessary for the present invention to provide a device and a method for laminating the cover glass and the screen more smoothly, so that the cover glass and the screen are more smoothly and firmly laminating and bubbles are reduced.

[0004] The present invention provides a device that can make the cover glass and the screen more evenly attached, and the device comprises:

[0005] A carrying jig, the carrying jig is used to carry the cover glass;

[0006] A fixing mechanism, the fixing mechanism is used to fix a part of the screen;

[0007] A glue coating mechanism, the glue coating mechanism comprising a thin sheet-shaped glue outlet pipe and a moving mechanism, the thin sheet-shaped glue outlet pipe is placed between the cover glass and the screen, the thin sheet-shaped glue outlet pipe has a glue outlet perpendicular to the bonding direction, and the moving mechanism is used to drive the thin sheet-shaped glue outlet pipe to move along the bonding direction;

[0008] A vacuum mechanism is used to generate negative pressure in the space enclosed by the cover glass, the screen, and the glue outlet.

[0009] Furthermore, the sheet-shaped glue outlet has a chamfered surface at the glue outlet, and the chamfered surface faces the cover glass.

[0010] Furthermore, the glue flowing out of the thin sheet-shaped glue outlet pipe is light-curing glue, and a curing light source is provided on a side of the supporting fixture facing away from the cover glass.

[0011] Furthermore, the cover glass and the side of the screen are sealed by the side wall of the supporting fixture.

[0012] Furthermore, a vacuum hole is provided at a position of the side wall of the supporting fixture corresponding to the thin sheet-shaped rubber outlet pipe.

[0013] Furthermore, the moving mechanism includes opposing gears, and the thin sheet-shaped rubber outlet hose is placed between the gears.

[0014] The present invention provides a method for bonding the cover glass and the screen based on the device that can make the bonding between the cover glass and the screen smoother, and the method comprises:

[0015] Fixing the cover glass to the supporting fixture;

[0016] Aligning the screen with the cover glass;

[0017] Placing the sheet-shaped glue outlet tube between the cover glass and the screen;

[0018] The screen is attached to the sheet-like rubber outlet tube;

[0019] The vacuum mechanism is turned on and the sheet-like glue outlet tube is gradually moved.

[0020] Furthermore, before starting the vacuum mechanism and gradually moving the thin sheet-shaped glue outlet pipe, the method further includes:

[0021] A predetermined amount of glue is discharged through the thin sheet-shaped glue outlet tube; wherein, when the thin sheet-shaped glue outlet tube is placed between the cover glass and the screen, the glue outlet of the thin sheet-shaped glue outlet tube needs to be aligned with the fixing mechanism;

[0022] The fixing mechanism is moved so that the portion of the screen located below the fixing mechanism is pre-attached to the cover glass.

[0023] The device and method provided by the present invention can make the cover glass and the screen more smoothly attached. The characteristic of the screen that can be slightly deformed is used to form an enclosed space between the cover glass, the screen, and the glue outlet. A vacuum mechanism generates negative pressure in the space, which can allow liquid glue to flow out from the glue outlet and be discharged into the space on the one hand, and can also allow the screen to be tightly attached to the cover glass on the other hand. The thin sheet-like glue outlet tube is driven by the moving mechanism to move along the bonding direction, and the enclosed space formed between the cover glass, the screen, and the glue outlet moves accordingly. After continuing in this way, the cover glass and the screen will gradually be attached together. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic structural diagram of a specific embodiment of the present invention before bonding.

[0025] Figure 2 It is a schematic diagram of the top structure of the present invention.

[0026] Figure 3 It is a schematic diagram of the structure of a specific embodiment of the present invention during the bonding process.

[0027] Figure 4 It is a side view of a carrying fixture according to a specific embodiment of the present invention. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0029] The specific embodiment of the present invention provides a device that can make the cover glass 110 and the screen 120 more flat. Figure 1-3 As shown, the device includes a carrying fixture 10, a fixing mechanism 20, a gluing mechanism 30 and a vacuum mechanism (not shown).

[0030] The supporting jig 10 is used to support the cover glass 110 , and the supporting jig 10 may be provided with a positioning groove for positioning the cover glass 110 and a suction nozzle for adsorbing the cover glass 110 , and the suction nozzle may be set on the bottom surface of the positioning groove.

[0031] The fixing mechanism 20 is used to fix a portion of the screen 120 . The fixing mechanism 20 can be fixed at an edge of the screen 120 , or can be fixed at a middle position of the screen 120 .

[0032] like Figure 2 As shown, the glue coating mechanism 30 includes a thin sheet-shaped glue outlet tube 31 and a moving mechanism 32. The width of the thin sheet-shaped glue outlet tube 31 can be substantially the same as the width of the cover glass 110 and the screen 120, and the thin sheet-shaped glue outlet tube 31 has a glue outlet 311 perpendicular to the bonding direction, so that both sides of the glue outlet 311 are close to the side edges of the cover glass 110 and the screen 120. The thin sheet-shaped glue outlet tube 31 is placed between the cover glass 110 and the screen 120, parallel to the cover glass 110 and the screen 120, and the glue outlet 311 is placed between the cover glass 110 and the screen 120.

[0033] The moving mechanism 32 is used to drive the thin sheet-like glue outlet tube 31 to move along the bonding direction. The moving mechanism 32 pulls the thin sheet-like glue outlet tube 31 to move. In this embodiment, the moving mechanism 32 includes opposing gears, and the thin sheet-like glue outlet tube 31 is placed between the gears. When the thin sheet-like glue outlet tube 31 is moved, the gears will intermittently squeeze the thin sheet-like glue outlet tube 31, and then intermittent glue will flow out of the glue outlet 311, thereby controlling the glue outflow amount.

[0034] The screen 120 is attached to the thin sheet-like glue outlet tube 31 so that the thin sheet-like glue outlet tube 31 is located between the cover glass 110 and the screen 120 . The cover glass 110 , the screen 120 , and the glue outlet 311 form a space S, and the vacuum mechanism is used to generate negative pressure in the space S.

[0035] In this embodiment, the glue outlet 311 of the thin sheet-like glue outlet tube 31 has a chamfered surface 312, and the chamfered surface 312 faces the cover glass 110. When the screen 120 is attached, the screen 120 will be slightly bent. Since the chamfered surface 312 faces the cover glass 110, the screen 120 can be prevented from being blocked by being close to the glue outlet 311, so that the space S includes the gap below the chamfered surface 312, thereby facilitating the glue to flow into the gap below the chamfered surface 312.

[0036] The glue flowing out of the thin sheet-like glue outlet tube 31 is a photocuring glue. A curing light source 11 is provided on the side of the supporting fixture 10 facing away from the cover glass 110. During the bonding process, the curing light source 11 is turned on. The curing light source 11 can penetrate the cover glass 110, thereby curing the photocuring glue and accelerating the bonding and fixation between the cover glass 110 and the screen 120.

[0037] The cover glass 110 and the screen 120 are closed by the side walls 12 of the supporting fixture 10 to ensure the airtightness of the space S. Figure 2 and Figure 4 As shown, a vacuum hole 13 may be provided at a position of the side wall 12 of the carrying fixture 10 corresponding to the thin sheet-shaped glue outlet tube 31. The vacuum mechanism may be connected to the vacuum hole 13, thereby forming a negative pressure in the changing space S.

[0038] The present invention provides a method for bonding a cover glass 110 and a screen 120 to each other more smoothly based on the above specific embodiments. The method comprises:

[0039] Fixing the cover glass 110 to the supporting fixture 10;

[0040] Aligning the screen 120 with the cover glass 110;

[0041] The sheet-shaped glue outlet tube 31 is placed between the cover glass 110 and the screen 120;

[0042] The screen 120 is attached to the thin sheet-shaped rubber outlet tube 31;

[0043] The vacuum mechanism is turned on and the thin sheet-like glue outlet tube 31 is gradually moved.

[0044] Furthermore, before starting the vacuum mechanism and gradually moving the sheet-shaped glue outlet pipe 31, the method further includes:

[0045] A predetermined amount of glue is discharged through the thin-sheet glue outlet tube 31 ; wherein, when the thin-sheet glue outlet tube 31 is placed between the cover glass 110 and the screen 120 , the glue outlet 311 of the thin-sheet glue outlet tube 31 needs to be aligned with the fixing mechanism 20 .

[0046] The fixing mechanism 20 is moved so that the portion of the screen 120 located below the fixing mechanism 20 is pre-attached to the cover glass 110 .

[0047] After the portion below the fixing mechanism 20 is pre-attached to the cover glass 110 , the cover glass 110 and the screen 120 are pre-fixed, and then the vacuum mechanism is turned on and the sheet-like glue outlet tube 31 is gradually moved.

[0048] The present invention utilizes the property that the screen 120 can be slightly deformed, so that an enclosed space S is formed between the cover glass 110, the screen 120, and the glue outlet 311. The vacuum mechanism generates negative pressure in the space S. On the one hand, it allows the liquid glue to flow out from the glue outlet 311 and be discharged into the space S, and on the other hand, it allows the screen 120 to be tightly attached to the cover glass 110. The thin sheet-like glue outlet tube 31 is driven by the moving mechanism 32 to move along the bonding direction, and the enclosed space S formed between the cover glass 110, the screen 120, and the glue outlet 311 moves accordingly. After this continues, the cover glass 110 and the screen 120 will gradually be bonded together.

[0049] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A device that can make the cover glass and the screen stick more smoothly, characterized in that: The device comprises: A carrying jig, the carrying jig is used to carry the cover glass; A fixing mechanism, the fixing mechanism is used to fix a part of the screen; A glue coating mechanism, the glue coating mechanism comprising a thin sheet-shaped glue outlet pipe and a moving mechanism, the thin sheet-shaped glue outlet pipe is placed between the cover glass and the screen, the thin sheet-shaped glue outlet pipe has a glue outlet perpendicular to the bonding direction, and the moving mechanism is used to drive the thin sheet-shaped glue outlet pipe to move along the bonding direction; A vacuum mechanism is used to generate negative pressure in the space enclosed by the cover glass, the screen, and the glue outlet.

2. The device for making the cover glass and the screen more evenly attached to each other according to claim 1, characterized in that: The sheet-shaped glue outlet has a chamfered surface at the glue outlet, and the chamfered surface faces the cover glass.

3. The device for making the cover glass and the screen more evenly attached to each other according to claim 1, characterized in that: The glue flowing out of the thin sheet-shaped glue outlet pipe is light-curing glue, and a curing light source is provided on a side of the supporting fixture facing away from the cover glass.

4. The device for making the cover glass and the screen more evenly attached to each other according to claim 1, characterized in that: The cover glass and the side surface of the screen are sealed by the side wall of the supporting fixture.

5. The device for making the cover glass and the screen more evenly attached to each other according to claim 4, characterized in that: A vacuum hole is provided on the side wall of the supporting fixture at a position corresponding to the thin sheet-shaped rubber outlet pipe.

6. The device for making the cover glass and the screen more evenly attached to each other according to claim 1, characterized in that: The moving mechanism comprises opposite gears, and the sheet-shaped rubber outlet tube is placed between the gears.

7. A method for bonding a cover glass to a screen more evenly based on any one of claims 1 to 6, characterized in that: The method comprises: Fixing the cover glass to the supporting fixture; Aligning the screen with the cover glass; Placing the sheet-shaped glue outlet tube between the cover glass and the screen; The screen is attached to the sheet-like rubber outlet tube; The vacuum mechanism is turned on and the sheet-like glue outlet tube is gradually moved.

8. The method for bonding cover glass and screen with reduced bubbles according to claim 7, characterized in that: Before starting the vacuum mechanism and gradually moving the thin sheet-shaped glue outlet pipe, the method further includes: A predetermined amount of glue is discharged through the thin sheet-shaped glue outlet tube; wherein, when the thin sheet-shaped glue outlet tube is placed between the cover glass and the screen, the glue outlet of the thin sheet-shaped glue outlet tube needs to be aligned with the fixing mechanism; The fixing mechanism is moved so that the portion of the screen located below the fixing mechanism is pre-attached to the cover glass.

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