Fixing device for edge gluing of display screen

Abstract

The invention discloses a display screen edge gluing fixing device which comprises a platen, a first driving mechanism, a second driving mechanism and a collecting block, the platen is fixedly provided with a leak hole, a first limiting strip and a second limiting strip, and the first limiting strip is perpendicular to the second limiting strip; the first driving mechanism comprises a first linear driving piece and a third limiting strip; the second driving mechanism comprises a second linear driving piece and a fourth limiting strip; the collecting block is arranged on the fourth limiting strip and located on the side, close to the first limiting strip, of the fourth limiting strip, a flow channel is formed in the collecting block and comprises an isosceles trapezoid section and an inclined section, the large-diameter end of the isosceles trapezoid section communicates with the top face of the collecting block, and the small-diameter end of the isosceles trapezoid section communicates with the top end of the inclined section; the bottom end of the inclined section communicates with the bottom face of the collecting block to form a communicating opening, and the communicating opening is located above the leaking hole. The fixing device for gluing the edge of the display screen can give consideration to both production efficiency and product quality.

Description

Technical Field

[0001] The invention relates to the technical field of display screen production equipment, and in particular to a fixing device for gluing the edge of a display screen. Background Art

[0002] There is a gluing process in the production process of the display screen, which is used to bond the middle frame and the display panel and form a certain degree of sealing, such as Figure 1 As shown, the middle frame 7 includes a surrounding wall 71 and a supporting edge 72 protruding inward. The supporting edge 72 and the surrounding wall 71 are generally an integrated structure. The supporting edge 72 is provided with a double-sided tape or glue (named as the first glue portion 91) for bonding the display panel 8. In order to further improve the bonding effect between the display panel 8 and the middle frame 7, some display screens not only allow the supporting edge 72 to be bonded to the back of the display panel 8, but also allow the inner wall of the surrounding wall 71 to be connected to the peripheral wall of the display panel 8 through glue (named as the second glue portion 92). In the actual operation process, the glue is directly applied into the gap between the surrounding wall 71 and the display panel 8. Since the back of the display panel 8 is first glued to the supporting edge 72, the glue applied into the gap will not flow into the middle frame 7.

[0003] However, as display screens develop towards being thinner and more highly integrated, some display screen products need to open a window 73 on their frame 7, and the support edge 72 is disconnected in the area corresponding to the window 73 to form a vacant position. The window 73 can be used to install speakers, lighting components or other components. However, due to the existence of the vacant position on the support edge 72, in the process of applying glue to the gap between the surrounding wall 71 and the display panel 8, the glue will flow down at the position of the gap corresponding to the window 73. Subsequently, additional steps are required to wipe the glue dripping into the window 73, or to scrape off the glue solidified in the window 73. If the residual glue in the window 73 is left alone, it will affect the installation of the speaker, lighting components or other components and the appearance of the display screen. To overcome this problem, there are generally two measures in the prior art. One is not to apply glue to the vacant position of the gap corresponding to the support edge 72, so that the local area of ​​the gap is lacking in glue, but this will undoubtedly reduce the stability and sealing of the connection between the display panel 8 and the middle frame 7; the other is to set an additional process to wipe the glue at the window 73 or scrape off the colloid at the window 73 after the gap is glued. This will undoubtedly reduce the production efficiency of the display screen and increase the manufacturing cost of the display screen. Summary of the invention

[0004] The technical problem solved by the present invention is to provide a fixing device for gluing the edge of a display screen which can take into account both production efficiency and product quality.

[0005] In order to solve the above technical problems, the technical solution adopted by the present invention is: a fixing device for gluing the edge of a display screen, comprising:

[0006] A table plate, on which a leak hole, a first limiting strip and a second limiting strip are fixedly provided, wherein the first limiting strip and the second limiting strip are perpendicular to each other;

[0007] a first driving mechanism, the first driving mechanism comprising a first linear driving member and a third limiting bar, the third limiting bar being arranged opposite to the second limiting bar, the first linear driving member connecting the table plate and the third limiting bar to drive the third limiting bar to approach or move away from the second limiting bar;

[0008] a second driving mechanism, the second driving mechanism comprising a second linear driving member and a fourth limiting bar, the fourth limiting bar being arranged opposite to the first limiting bar, the second linear driving member connecting the table plate and the fourth limiting bar to drive the fourth limiting bar to approach or move away from the first limiting bar; the first limiting bar, the second limiting bar, the third limiting bar and the fourth limiting bar limiting a placement position for placing the middle frame;

[0009] A collecting block, wherein the collecting block is arranged on the fourth limit strip and is located on the side of the fourth limit strip close to the first limit strip, and a flow channel is provided on the collecting block, and the flow channel includes an isosceles trapezoidal section and an inclined section, the large diameter end of the isosceles trapezoidal section is connected to the top surface of the collecting block, the small diameter end of the isosceles trapezoidal section is connected to the top of the inclined section, and the bottom end of the inclined section is connected to the bottom surface of the collecting block to form a connecting port, and the connecting port is located above the leakage hole.

[0010] The beneficial effects of the present invention are:

[0011] The gluing auxiliary device for display screen production has a novel structure. The cooperation of the first limit bar, the second limit bar, the third limit bar and the fourth limit bar can accurately position the display hollow, which is beneficial to ensure the gluing accuracy of the gap between the wall of the middle frame and the display panel, and improve the product quality of the display screen.

[0012] When the fourth limit bar contacts the middle frame, the collecting block on the fourth limit bar can pass through the window of the middle frame, and the large diameter end of the isosceles trapezoidal segment is aligned and connected with the area of ​​the aforementioned gap corresponding to the window. Therefore, when glue is applied to the area of ​​the aforementioned gap corresponding to the window, even if the glue drips from the gap, it will only drip into the flow channel of the collecting block and drip through the leakage hole along the flow channel. After the collecting block exits the window, no glue or colloid will remain outside the window. Therefore, there is no need to set up an additional process of wiping the glue / scraping off the colloid, which is beneficial to improving the production efficiency and product quality of the display screen. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0014] Figure 1 A cross-sectional view of a middle frame and a local area of ​​a display panel in a display screen of the prior art;

[0015] Figure 2 A top view of a fixing device for gluing the edge of a display screen according to a first embodiment of the present invention;

[0016] Figure 3 for Figure 2 The enlarged view of point A in the middle;

[0017] Figure 4 It is a cross-sectional view of a local area of ​​the fixing device for gluing the edge of a display screen according to the first embodiment of the present invention (when the collecting block is in the second position);

[0018] Figure 5 It is a partial cross-sectional view of the fixing device for gluing the edge of a display screen according to the first embodiment of the present invention (when the collecting block is in the first position).

[0019] Description of Figure Numbers:

[0020] 1. Platen; 11. Leakage hole;

[0021] 21. a first linear drive member; 22. a second linear drive member;

[0022] 3. Collecting block; 31. Flow channel; 311. Isosceles trapezoidal section; 312. Inclined section; 32. First structural member; 33. Second structural member;

[0023] 41. First limit strip; 42. Second limit strip; 43. Third limit strip;

[0024] 5. Fourth limit strip; 51. Installation slot;

[0025] 6. Collection box;

[0026] 7. middle frame; 71. surrounding wall; 72. supporting edge; 73. window;

[0027] 8. Display panel;

[0028] 91. First adhesive part; 92. Second adhesive part. DETAILED DESCRIPTION

[0029] The purpose, features and advantages of the present invention will be further described with reference to the accompanying drawings in conjunction with the embodiments.

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] It should be noted that if the embodiments of the present invention involve directional indications such as up, down, left, right, front, back, etc., then the directional indications are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture as shown in the accompanying drawings. If the specific posture changes, the directional indication will also change accordingly.

[0032] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of the features.

[0033] In addition, if the meaning of "and / or" appears in the full text is to include three parallel solutions, taking "and / or" as an example, it includes solutions, or solutions, or and solutions that are satisfied at the same time. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the protection scope required by the present invention.

[0034] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0035] Embodiment 1

[0036] Please refer to Figures 2 to 5Embodiment 1 of the present invention is: a fixing device for gluing the edge of a display screen, used to assist in gluing the gap between the inner wall of the surrounding wall 71 of the middle frame 7 and the peripheral wall of the display panel 8 to form a second glue portion 92, and the top surface of the support edge 72 of the middle frame 7 is connected to the bottom surface of the display panel 8 through the first glue portion 91.

[0037] The fixing device for gluing the edge of a display screen comprises a table 1, a first driving mechanism, a second driving mechanism and a collecting block 3, wherein a leak hole 11, a first limiting strip 41 and a second limiting strip 42 are fixedly arranged on the table 1, wherein the first limiting strip 41 and the second limiting strip 42 are perpendicular to each other; the first driving mechanism comprises a first linear driving member 21 and a third limiting strip 43, wherein the first linear driving member 21 is a cylinder or an electric push rod, wherein the third limiting strip 43 is arranged opposite to the second limiting strip 42, wherein the first linear driving member 21 connects the table 1 and the third limiting strip 43 to drive the third limiting strip 43 to approach or move away from the second limiting strip 42; the second driving mechanism comprises a second linear driving member 22 and a fourth limiting strip 5, wherein the second linear driving member 22 is a cylinder or an electric push rod, wherein the fourth limiting strip 5 is arranged opposite to the first limiting strip 41, wherein the second linear driving member 22 connects the table 1 and the fourth limiting strip 5 to drive the third limiting strip 43 to approach or move away from the second limiting strip 42. The four limiting strips 5 are close to or away from the first limiting strip 41; the first limiting strip 41, the second limiting strip 42, the third limiting strip 43 and the fourth limiting strip 5 limit a placement position for placing the middle frame 7; the collecting block 3 is arranged on the fourth limiting strip 5 and is located on the side of the fourth limiting strip 5 close to the first limiting strip 41, and a flow channel 31 is provided on the collecting block 3, and the flow channel 31 includes an isosceles trapezoidal section 311 and an inclined section 312, and the vertical The cross-section is an isosceles trapezoid, the large diameter end of the isosceles trapezoidal segment 311 is connected to the top surface of the collecting block 3, the small diameter end of the isosceles trapezoidal segment 311 is connected to the top of the inclined segment 312, and the bottom end of the inclined segment 312 is connected to the bottom surface of the collecting block 3 to form a connecting port, and the connecting port is located above the leakage hole 11. Therefore, the glue entering the flow channel 31 through the large diameter end of the isosceles trapezoidal segment 311 can flow out of the flow channel 31 from the connecting port and fall through the leakage hole 11.

[0038] To facilitate the processing of the flow channel 31 on the collecting block 3, in this embodiment, the collecting block 3 includes a first structural member 32 and a second structural member 33 connected to each other, the isosceles trapezoidal section 311 is arranged on the first structural member 32, and the first structural member 32 and the second structural member 33 together form the inclined section 312.

[0039] Preferably, the first structural member 32 and the second structural member 33 are detachably connected, so that maintenance personnel can clean the flow channel 31 conveniently to prevent the flow channel 31 from being blocked.

[0040] In order to take into account the supporting effect of the fourth limit strip 5 on the center frame 7 and the smooth drainage of the flow channel 31, preferably, the fourth limit strip 5 is provided with a mounting groove 51 connected to its bottom surface, and a partial area of ​​the collection block 3 is installed in the mounting groove 51. Preferably, when the fixing device for glueing the edge of the display screen is viewed from a top perspective, the projection area of ​​the communication port is located within the projection area of ​​the mounting groove 51.

[0041] Specifically, the collecting block 3 has a first position and a second position. When the collecting block 3 is in the first position, the distance between the fourth limit bar 5 and the first limit bar 41 reaches the shortest state, and the middle frame 7 is clamped and limited by the first limit bar 41, the second limit bar 42, the third limit bar 43 and the fourth limit bar 5; when the collecting block 3 is in the second position, the distance between the fourth limit bar 5 and the first limit bar 41 reaches the longest state, and the middle frame 7 can be taken and placed at this time; further, when the fixing device for gluing the edge of the display screen is viewed from a top-down perspective, no matter whether the collecting block 3 is in the first position, the second position or other positions between the first position and the second position, the projection area of ​​the connecting port is located within the projection area of ​​the leakage hole 11.

[0042] As a preferred embodiment, the fixing device for gluing the edge of the display screen also includes a collecting box 6, which is arranged below the platform 1 and corresponds to the leakage hole 11. The collecting box 6 can effectively collect the glue dripping from the flow channel 31 and passing through the leakage hole 11, so that the glue can be recycled. At the same time, it is helpful to keep the installation environment of the fixing device for gluing the edge of the display screen clean.

[0043] In this embodiment, the collection box 6 is detachably connected to the table top 1, and the detachable connection method includes but is not limited to screw connection, snap connection, magnetic connection, etc.

[0044] By controlling the size of the collecting block 3, the outline size of the vertical cross section of the collecting block 3 can be made the same as the size of the vertical surface of the window 73, so that the overflowed glue in each area of ​​the gap corresponding to the window 73 can be effectively collected by the collecting block 3. Figure 4 and Figure 5 As shown, the transverse cross-sectional dimension of the flow channel 31 is greater than the width of the gap. When the collecting block 3 is in the first position, at the window 73, the inner wall of the surrounding wall 71 and the surrounding wall of the display panel 8 are located between the two inner wall surfaces of the flow channel 31, so that the overflowed glue can be better collected. At the same time, when the collecting block 3 moves from the first position to the second position, the edge of the top of the flow channel 31 can also scrape off the overflowed glue at the gap, which is beneficial to further improve the collection effect of the collecting block 3 on the glue liquid.

[0045] The above are only optional embodiments of the present invention, and do not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the inventive concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A fixing device for gluing the edge of a display screen, characterized in that: include A table plate, on which a leak hole, a first limiting strip and a second limiting strip are fixedly provided, wherein the first limiting strip and the second limiting strip are perpendicular to each other; a first driving mechanism, the first driving mechanism comprising a first linear driving member and a third limiting bar, the third limiting bar being arranged opposite to the second limiting bar, the first linear driving member connecting the table plate and the third limiting bar to drive the third limiting bar to approach or move away from the second limiting bar; a second driving mechanism, the second driving mechanism comprising a second linear driving member and a fourth limiting bar, the fourth limiting bar being arranged opposite to the first limiting bar, the second linear driving member connecting the table plate and the fourth limiting bar to drive the fourth limiting bar to approach or move away from the first limiting bar; the first limiting bar, the second limiting bar, the third limiting bar and the fourth limiting bar limiting a placement position for placing the middle frame; A collecting block, wherein the collecting block is arranged on the fourth limit strip and is located on the side of the fourth limit strip close to the first limit strip, and a flow channel is provided on the collecting block, and the flow channel includes an isosceles trapezoidal section and an inclined section, the large diameter end of the isosceles trapezoidal section is connected to the top surface of the collecting block, the small diameter end of the isosceles trapezoidal section is connected to the top of the inclined section, and the bottom end of the inclined section is connected to the bottom surface of the collecting block to form a connecting port, and the connecting port is located above the leakage hole.

2. The fixing device for gluing the edge of a display screen according to claim 1, characterized in that: The collecting block comprises a first structural member and a second structural member connected to each other. The isosceles trapezoidal section is arranged on the first structural member. The first structural member and the second structural member are combined to form the inclined section.

3. The fixing device for gluing the edge of a display screen according to claim 1, characterized in that: The fourth limiting strip is provided with a mounting groove connected to the bottom surface thereof, and a partial area of ​​the collecting block is mounted in the mounting groove.

4. The fixing device for gluing the edge of a display screen according to claim 1, characterized in that: It also includes a collecting box, which is arranged below the platform and corresponds to the leak hole.

5. The fixing device for gluing the edge of a display screen according to claim 4, characterized in that: The collecting box is detachably connected to the table.

6. The fixing device for gluing the edge of a display screen according to claim 1, characterized in that: The vertical cross section of the isosceles trapezoidal segment is an isosceles trapezoidal shape.

7. The fixing device for gluing the edge of a display screen according to claim 1, characterized in that: The first linear drive member is a cylinder or an electric push rod.

8. The fixing device for gluing the edge of a display screen according to claim 1, characterized in that: The second linear drive member is a cylinder or an electric push rod.

9. The fixing device for gluing the edge of a display screen according to claim 1, characterized in that: The collecting block has a first position and a second position. When the collecting block is in the first position, the distance between the fourth limiting strip and the first limiting strip reaches the shortest state; when the collecting block is in the second position, the distance between the fourth limiting strip and the first limiting strip reaches the longest state; When the fixing device for gluing the edge of a display screen is viewed from a top-down perspective, the projection area of ​​the connecting opening is located within the projection area of ​​the leakage hole.

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