Display screen positioning and gluing device

Abstract

The invention discloses a display screen positioning and gluing device which comprises a platen, a first driving mechanism, a second driving mechanism, a collecting block, a sliding partition plate and an elastic reset piece, a first limiting strip and a second limiting strip are fixedly arranged on the platen, and a convex column is further arranged on the platen; the first driving mechanism comprises a first linear driving piece and a third limiting strip, and the first linear driving piece is connected with the platen and the third limiting strip; the second driving mechanism comprises a second linear driving piece and a fourth limiting strip, and the second linear driving piece is connected with the platen and the fourth limiting strip; the collecting block is arranged on the fourth limiting strip, a flow channel is formed in the collecting block, and the flow channel comprises a direct flow section; a sliding groove communicating with the two ends of the collecting block is further formed in the collecting block and communicates with the straight flow section. The end of the sliding partition plate protrudes out of the end face of the collecting block to form a protruding section used for being matched with the protruding column. The elastic reset piece is arranged in the sliding groove and makes contact with the sliding partition plate and the collecting block. The display screen positioning and gluing device 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 display screen positioning and gluing device. 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, leaving the local area of ​​the gap lacking 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 up 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, which 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 display screen positioning and gluing device that 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 display screen positioning and gluing device, comprising:

[0006] A table top, wherein a first limiting strip and a second limiting strip are fixedly disposed on the table top, wherein the first limiting strip and the second limiting strip are perpendicular to each other, and a convex column is also disposed on the table top;

[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 along a first direction;

[0008] A second driving mechanism, the second driving mechanism comprises a second linear driving member and a fourth limiting bar, the fourth limiting bar is arranged opposite to the first limiting bar, the second linear driving member connects the table plate and the fourth limiting bar to drive the fourth limiting bar to approach or move away from the first limiting bar along a second direction, the first direction is perpendicular to the second direction; the first limiting bar, the second limiting bar, the third limiting bar and the fourth limiting bar limit a placement position for placing the middle frame;

[0009] A collecting block, the collecting block is arranged on the fourth limiting strip and is located on the side of the fourth limiting strip close to the first limiting strip, the collecting block is provided with a flow channel, the flow channel includes an isosceles trapezoidal section and a direct current 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 direct current section, and the bottom end of the direct current section is connected to the bottom surface of the collecting block; the collecting block is also provided with a slide groove connecting its two ends, and the middle area of ​​the slide groove is connected to the direct current section;

[0010] A sliding baffle, the sliding baffle being slidably disposed in the sliding groove and the end of the sliding baffle protruding from the end surface of the collecting block to form a protruding section, the protruding section being used to cooperate with the protruding column, and the sliding baffle being slidable along the second direction;

[0011] An elastic reset member, wherein the elastic reset member is arranged in the slide groove, the elastic reset member contacts the sliding partition and the collecting block respectively, and the elastic reset member is used to drive the sliding partition to slide toward the fourth limiting strip.

[0012] The beneficial effects of the present invention are:

[0013] The display screen positioning and gluing device 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.

[0014] 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 so as to be collected by the flow channel of the collecting block. 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.

[0015] After the second linear drive member drives the fourth limit strip to retreat to a certain extent, the convex column contacts the sliding partition, and the fourth limit strip continues to retreat. The sliding partition is displaced relative to the collecting block under the support of the convex column, so that the DC section is changed from a disconnected state to a connected state, so that the glue in the flow channel flows out from the bottom of the flow channel, thereby cleaning the flow channel. Moreover, since the sliding partition will switch the DC section between the disconnected state and the connected state once each time the gluing operation of the display screen is completed, there will not be too much glue left in the flow channel, so that the flow channel will not be blocked, which is conducive to ensuring the continuity of production and thus improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] 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.

[0017] 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;

[0018] Figure 2 A top view of a display screen positioning and gluing device according to a first embodiment of the present invention;

[0019] Figure 3 It is a cross-sectional view of a local area of ​​the display screen positioning and gluing device according to the first embodiment of the present invention (when the collecting block is in the second position);

[0020] Figure 4 It is a cross-sectional view of a local area of ​​the display screen positioning and gluing device according to the first embodiment of the present invention (when the collecting block is in the first position);

[0021] Figure 5 This is a schematic diagram of the structure of the collecting block in the display screen positioning and gluing device according to the first embodiment of the present invention.

[0022] Description of Figure Numbers:

[0023] 1. Platen; 11. Leak hole; 12. Boss;

[0024] 21. a first linear drive member; 22. a second linear drive member;

[0025] 3. Collecting block; 31. Flow channel; 311. Isosceles trapezoidal section; 312. Direct flow section; 32. Chute;

[0026] 4. Sliding partition; 41. Protruding section;

[0027] 51. First limit strip; 52. Second limit strip; 53. Third limit strip; 54. Fourth limit strip;

[0028] 6. Elastic reset member;

[0029] 7. middle frame; 71. surrounding wall; 72. supporting edge; 73. window;

[0030] 8. Display panel;

[0031] 91. First adhesive part; 92. Second adhesive part. DETAILED DESCRIPTION

[0032] The purpose, features and advantages of the present invention will be further described with reference to the accompanying drawings in conjunction with the embodiments.

[0033] 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.

[0034] 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.

[0035] 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.

[0036] 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.

[0037] 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.

[0038] Embodiment 1

[0039] Please refer to Figures 2 to 5 Embodiment 1 of the present invention is: a display screen positioning and gluing device, 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 and the bottom surface of the display panel 8 are connected through the first glue portion 91.

[0040] The display screen positioning glue-spraying device comprises a table 1, a first driving mechanism, a second driving mechanism, a collecting block 3, a sliding partition 4 and an elastic reset member 6, wherein the table 1 is fixedly provided with a first limiting strip 51 and a second limiting strip 52, wherein the first limiting strip 51 and the second limiting strip 52 are perpendicular to each other, and the table 1 is also provided with a convex column 12; the first driving mechanism comprises a first linear driving member 21 and a third limiting strip 53, wherein the first linear driving member 21 is a cylinder or an electric push rod, wherein the third limiting strip 53 is arranged opposite to the second limiting strip 52, and the first linear driving member 21 connects the table 1 and the third limiting strip 53 to drive the third limiting strip 53 along the first limiting strip 53. The second driving mechanism includes a second linear driving member 22 and a fourth limiting bar 54, wherein the second linear driving member 22 is a cylinder or an electric push rod, and the fourth limiting bar 54 is arranged opposite to the first limiting bar 51, and the second linear driving member 22 connects the table 1 and the fourth limiting bar 54 to drive the fourth limiting bar 54 to approach or move away from the first limiting bar 51 along a second direction, and the first direction is perpendicular to the second direction; the first limiting bar 51, the second limiting bar 52, the third limiting bar 53 and the fourth limiting bar 54 limit a placement position for placing the middle frame 7; the collecting block 3 is arranged at the The fourth limit strip 54 is on the side of the fourth limit strip 54 close to the first limit strip 51, and a flow channel 31 is provided on the collection block 3, and the flow channel 31 includes an isosceles trapezoidal section 311 and a DC section 312. The vertical cross-section of the isosceles trapezoidal section 311 is an isosceles trapezoid, and the vertical cross-section of the DC section 312 is a rectangle. The large diameter end of the isosceles trapezoidal section 311 is connected to the top surface of the collection block 3, and the small diameter end of the isosceles trapezoidal section 311 is connected to the top of the DC section 312, and the bottom end of the DC section 312 is connected to the bottom surface of the collection block 3; the collection block 3 is also provided with a slide groove 32 connecting its two ends, and the middle area of ​​the slide groove 32 is connected to the The DC section 312; the sliding partition 4 controls the on-off state of the top end and the bottom end of the DC section 312, the sliding partition 4 can be slidably arranged in the sliding groove 32 and the end of the sliding partition 4 protrudes from the end surface of the collecting block 3 to form a protruding section 41, the protruding section 41 is used to cooperate with the boss 12, and the sliding partition 4 can slide along the second direction; the elastic reset member 6 is arranged in the sliding groove 32, the elastic reset member 6 contacts the sliding partition 4 and the collecting block 3 respectively, the elastic reset member 6 is used to drive the sliding partition 4 to slide toward the fourth limit strip 54, and the elastic reset member 6 can optionally be a compression spring, etc.

[0041] When the second linear drive member 22 drives the collecting block 3 to move to the first preset position in the direction away from the first limit strip 51, the protruding section 41 contacts the boss 12; in the process of the second linear drive member 22 continuing to drive the collecting block 3 to move in the direction away from the first limit strip 51 to move from the first preset position to the second preset position, the sliding partition 4 remains stationary under the resistance of the boss 12, and the elastic reset member 6 is compressed. At this time, the top end of the DC section 312 is connected with the bottom end of the DC section 312, and the glue in the flow channel 31 can flow out of the flow channel 31 through the bottom end of the DC section 312; in the process of the second linear drive member 22 driving the collecting block 3 to move to the first preset position in the direction close to the first limit strip 51, the top end of the DC section 312 and the bottom end of the DC section 312 are gradually separated by the sliding partition 4 and become disconnected. At this time, the flow channel 31 can collect the glue.

[0042] In order to balance the force on the sliding partition 4, in this embodiment, both ends of the sliding partition 4 are protruding sections 41, and the number of the protruding columns 12 is two, and the two protruding columns 12 are matched with the two protruding sections 41 in a one-to-one manner. Optionally, the protruding columns 12 are rectangular, and the protruding columns 12 are fastened to the platform 1 by fastening screws.

[0043] It should be noted that in the actual product, the collecting block 3 is composed of a plurality of sub-components, and the two contacting sub-components are connected by means of glue, welding, fastening screws, etc. The collecting block 3 composed of a plurality of sub-components can facilitate the processing of the flow channel 31, the slide groove 32 and the installation of the elastic reset part 6.

[0044] The bottom of the fourth limiting strip 54 is provided with an avoidance groove for avoiding the boss 12 , so as to prevent the fourth limiting strip 54 from interfering with the boss 12 when moving in a direction away from the first limiting strip 51 .

[0045] Specifically, the collection block 3 has a first position and a second position. When the collection block 3 is in the first position, the distance between the fourth limiting strip 54 and the first limiting strip 51 reaches the shortest state, and the middle frame 7 is clamped and limited by the first limiting strip 51, the second limiting strip 52, the third limiting strip 53 and the fourth limiting strip 54. When the collection block 3 is in the second position, the distance between the fourth limiting strip 54 and the first limiting strip 51 reaches the longest state, and the middle frame 7 can be taken and placed. It is easy to understand that the second position is the aforementioned second preset position.

[0046] The platen 1 is provided with a leak hole 11, and the leak hole 11 is provided corresponding to the direct current segment 312 on the collecting block 3 in the second position; when the glue-spraying device is positioned by looking through the display screen from a top-down perspective, the projection area of ​​the direct current segment 312 is located within the projection area of ​​the leak hole 11. When the top and bottom ends of the direct current segment 312 are connected, the glue in the flow channel 31 can fall through the leak hole 11, thereby restoring the ability of the flow channel 31 to store glue.

[0047] 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. Preferably, the transverse cross-sectional size of the flow channel 31 is larger 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 peripheral 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 conducive to further improving the collection effect of the collecting block 3 on the glue liquid.

[0048] In one or more embodiments, the collecting block 3 is made of metal material, a heating resistor wire is provided in the collecting block 3, the heating resistor wire is provided near the flow channel 31, a power supply component is also provided on the table 1, and the power supply component is connected to the heating resistor wire through the through hole penetrating the fourth limit strip 54 to electrically conduct the heating resistor wire. The setting of the heating resistor wire can provide heat for the glue in the flow channel, so that the glue in the flow channel maintains fluidity.

[0049] 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. Display screen positioning and gluing device, characterized by: include A table top, wherein a first limiting strip and a second limiting strip are fixedly disposed on the table top, wherein the first limiting strip and the second limiting strip are perpendicular to each other, and a convex column is also disposed on the table top; 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 along a first direction; A second driving mechanism, the second driving mechanism comprises a second linear driving member and a fourth limiting bar, the fourth limiting bar is arranged opposite to the first limiting bar, the second linear driving member connects the table plate and the fourth limiting bar to drive the fourth limiting bar to approach or move away from the first limiting bar along a second direction, the first direction is perpendicular to the second direction; the first limiting bar, the second limiting bar, the third limiting bar and the fourth limiting bar limit a placement position for placing the middle frame; A collecting block, the collecting block is arranged on the fourth limiting strip and is located on the side of the fourth limiting strip close to the first limiting strip, the collecting block is provided with a flow channel, the flow channel includes an isosceles trapezoidal section and a direct current 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 direct current section, and the bottom end of the direct current section is connected to the bottom surface of the collecting block; the collecting block is also provided with a slide groove connecting its two ends, and the middle area of ​​the slide groove is connected to the direct current section; A sliding baffle, the sliding baffle being slidably disposed in the sliding groove and the end of the sliding baffle protruding from the end surface of the collecting block to form a protruding section, the protruding section being used to cooperate with the protruding column, and the sliding baffle being slidable along the second direction; An elastic reset member, wherein the elastic reset member is arranged in the slide groove, the elastic reset member contacts the sliding partition and the collecting block respectively, and the elastic reset member is used to drive the sliding partition to slide toward the fourth limiting strip.

2. The display screen positioning and gluing device according to claim 1 is characterized in that: The vertical cross section of the isosceles trapezoidal section is an isosceles trapezoid, and the vertical cross section of the direct current section is a rectangle.

3. The display screen positioning and gluing device according to claim 1 is characterized in that: The first linear drive member is a cylinder or an electric push rod.

4. The display screen positioning and gluing device according to claim 1, characterized in that: The second linear drive member is a cylinder or an electric push rod.

5. The display screen positioning and gluing device 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 limit bar and the first limit bar reaches the shortest state. When the collecting block is in the second position, the distance between the fourth limit bar and the first limit bar reaches the longest state. A leakage hole is provided on the table plate, and the leakage hole is arranged corresponding to the DC segment on the collecting block in the second position. When the gluing device is positioned by looking through the display screen from a top-down perspective, the projection area of ​​the DC segment is located within the projection area of ​​the leakage hole.

6. The display screen positioning and gluing device according to claim 1, characterized in that: The bottom of the fourth limiting strip is provided with an avoidance groove for avoiding the convex column.

7. The display screen positioning and gluing device according to claim 1, characterized in that: Both ends of the sliding partition are protruding sections, the number of the protruding columns is two, and the two protruding columns are matched with the two protruding sections in a one-to-one correspondence.

8. The display screen positioning and gluing device according to claim 1, characterized in that: The elastic return member is a compression spring.

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