Semi-automatic laminating device for LCM (Liquid Crystal Module) screen edge-covering glue

Abstract

The invention provides a semi-automatic laminating device for LCM (Liquid Crystal Module) screen edge-covering glue, which comprises a shell, a laminating assembly and a power mechanism are connected in the shell, and the laminating assembly and the power mechanism are connected with each other; the power mechanism comprises a main shaft connected to the interior of the shell body, and the outer surface of a shaft body of the main shaft is sequentially connected with a cylindrical surface guide wheel and a guide cam; the attaching assembly comprises a cylindrical surface guide wheel push rod in sliding connection with a guide groove in the outer surface of the cylindrical surface guide wheel and a guide cam push rod in sliding connection with a guide groove in the outer surface of the guide cam, and the top end of a rod body of the cylindrical surface guide wheel push rod and the top end of a rod body of the guide cam push rod are both connected with a transmission block. According to the invention, two cams are used for guiding, so that the action of binding adhesive bonding is completed, and the design cost of automation is reduced.

Description

Technical Field

[0001] The present invention mainly relates to the technical field of LCM screen processing, and in particular to a semi-automatic bonding device for LCM screen edge glue. Background Art

[0002] The edge glue in the LCM screen is a crucial material in the manufacturing process of the display module. It usually refers to the light-shielding single-sided adhesive used on the four sides of the display module to cover the rubber frame or metal frame. Its main function is to block light and prevent the light from the backlight frame of the display screen from overflowing, thereby improving the display effect and picture quality. At present, the edge glue bonding process is usually performed manually, because the edge glue needs to be attached to three sides of the screen. Due to the softness of the edge glue tape, in order to ensure that the edge glue tape does not deform during bonding, it is usually necessary to manually flip the screen to complete the edge glue bonding process.

[0003] In the current edge glue laminating process, workers often flip the semi-finished screens by hand, which will cause red and blue shifts on the screen and increase the defective rate. The workers flip the screens too much, which makes the edge glue laminating process take too long and reduces efficiency. When flipping the screens, workers need a certain amount of experience to control the force and position of the flipping in order to complete a qualified edge glue laminating process without damaging the screen. The cost of training workers is too high, and there is a risk of damaging the product due to manual operation. Summary of the invention

[0004] The present invention mainly provides a semi-automatic bonding device for LCM screen edge glue to solve the technical problems raised in the above background technology.

[0005] The technical solution adopted by the present invention to solve the above technical problems is:

[0006] A semi-automatic bonding device for LCM screen edge glue, comprising a shell, wherein a bonding component and a power mechanism are connected inside the shell, and the bonding component and the power mechanism are connected to each other;

[0007] The power mechanism comprises a main shaft connected to the inside of the housing shell, and the outer surface of the main shaft is connected to a cylindrical guide wheel and a guide cam in sequence;

[0008] The fitting component includes a cylindrical guide wheel push rod slidably connected to the guide groove on the outer surface of the cylindrical guide wheel, and a guide cam push rod slidably connected to the guide groove on the outer surface of the guide cam. The top ends of the rod bodies of the cylindrical guide wheel push rod and the guide cam push rod are both connected to the transmission block.

[0009] Furthermore, the power mechanism also includes a rotating cylinder connected to the outside of the outer shell, and a driven shaft connected to one end of the inner shell via a coupling and extending from the output shaft of the rotating cylinder. The driven shaft and the main shaft are arranged perpendicular to each other, and the ends of the driven shaft and the main shaft that are close to each other are connected with arc bevel gears through keys, and the two arc bevel gears are meshed with each other.

[0010] Furthermore, the open end of the shell is connected to a product plate, one end of the plate body of the product plate is provided with a fitting component groove, both sides of the groove body of the fitting component groove are provided with edging glue grooves, one end of the fitting component groove is provided with a product groove, both sides of the product groove are provided with removal grooves, and the groove body of the removal groove is higher than the product groove.

[0011] Furthermore, the top end of the cylindrical guide wheel push rod is connected to the front and rear slide rails, and the guide cam push rod is connected to the transmission block through the front and rear slide rails.

[0012] Furthermore, the top end of the guide cam push rod is connected with an upper and lower slider, the upper and lower sliders are slidably connected with the upper and lower slide rails, and the upper and lower slide rails are connected to the lower surface of the transmission block.

[0013] Furthermore, the top end of the cylindrical guide wheel push rod is connected with front and rear sliding blocks, the front and rear sliding blocks are slidably connected with front and rear slide rails, and the front and rear slide rails are connected to the outer surface of the transmission block.

[0014] Furthermore, the fitting assembly also includes a connecting block connected to the top of the transmission block, one end of the connecting block is wrapped with an antistatic sponge, and the other end of the connecting block is connected to the top of the transmission block.

[0015] According to the technical solution of the semi-automatic bonding device of the LCM screen edge glue, a semi-automatic bonding method of the LCM screen edge glue is also provided, comprising the following steps:

[0016] Step 1: Put the edge tape into the edge tape groove of the product board, and then put the product screen into the product groove to complete the loading of the edge tape and the product screen;

[0017] Step 2: Use both hands to press the front and middle part of the screen, and make sure that the front and middle part of the screen does not exceed the groove body of the fitting component groove to adjust the position of the product screen;

[0018] Step 3: Press the start buttons on both sides of the housing with your fingers to start the rotating cylinder;

[0019] Step 4: The main shaft is driven to rotate by the rotary cylinder, and the main shaft drives the connecting block to perform periodic forward and backward and up and down movements to complete the edge glue bonding action.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] 1. This device uses two cam guides to complete the edge glue bonding action, reducing the design cost of automation.

[0022] 2. This device uses the product groove and the edge glue groove of the panel for alignment, unifies the alignment standards, reduces the differences in manual operations, and improves the yield rate.

[0023] 3. The device is easy to operate and does not require any training, which reduces learning costs and improves efficiency.

[0024] 4. This device is driven by a rotary cylinder, eliminating the step of motor zeroing and simplifying the operation steps.

[0025] The present invention will be explained in detail below with reference to the accompanying drawings and specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a structural schematic diagram of the present invention;

[0027] Figure 2 A top view of the present invention;

[0028] Figure 3 It is a schematic diagram of the internal structure of the housing of the present invention;

[0029] Figure 4 A cross-sectional view of the power mechanism of the present invention Figure 1 ;

[0030] Figure 5 A cross-sectional view of the power mechanism of the present invention Figure 2 ;

[0031] Figure 6 It is a structural schematic diagram of the bonding component of the present invention;

[0032] Figure 7 It is a structural schematic diagram of the cylindrical guide wheel of the present invention;

[0033] Figure 8 It is a structural schematic diagram of the guide cam of the present invention;

[0034] Fig. 9 is a motion curve diagram of the connecting block of the present invention;

[0035] Fig.10 It is a schematic diagram of the structure of the transmission block and the connecting block of the present invention.

[0036] In the figure: 1. spiral bevel gear; 2. key; 3. bushing; 4. bearing; 5. bushing; 6. cylindrical guide wheel; 7. key; 8. main shaft; 9. guide cam; 10. key; 11. bearing; 12. transmission block; 13. upper and lower slide rails; 14. upper and lower sliders; 15. front and rear sliders; 16. front and rear slide rails; 17. guide cam push rod; 18. cylindrical guide wheel push rod; 19. housing; 20. rotary cylinder; 21. product plate; 22. fitting component slot; 23. edging glue slot; 24. product slot; 25. removal slot; 26. connecting block; 27. antistatic sponge; 28. guide rod; 29. ​​L-shaped plate; 30. guide shaft; 31. driven shaft; 32. linear bearing. DETAILED DESCRIPTION

[0037] To facilitate understanding of the present invention, the present invention will be described more comprehensively below with reference to the relevant drawings. Several embodiments of the present invention are given in the drawings, but the present invention can be implemented in different forms and is not limited to the embodiments described in the text. On the contrary, these embodiments are provided to make the content disclosed in the present invention more thorough and comprehensive.

[0038] It should be noted that when an element is referred to as being "fixed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used in this article are for illustrative purposes only.

[0039] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field to which the present invention belongs. The terms used in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0040] For examples, please refer to the attached Figure 1-4 , a semi-automatic bonding device for LCM screen edge glue, comprising a shell 19, wherein a bonding component and a power mechanism are connected inside the shell 19, and the bonding component and the power mechanism are connected to each other;

[0041] The power mechanism comprises a main shaft 8 connected to the inside of the housing 19, and the outer surface of the main shaft 8 is connected to a cylindrical guide wheel 6 and a guide cam 9 in sequence;

[0042] The fitting assembly includes a cylindrical guide wheel push rod 18 slidably connected to the guide groove on the outer surface of the cylindrical guide wheel 6, and a guide cam push rod 17 slidably connected to the guide groove on the outer surface of the guide cam 9, and the top ends of the rod bodies of the cylindrical guide wheel push rod 18 and the guide cam push rod 17 are both connected to the transmission block 12;

[0043] It should be noted that, in this embodiment, the cylindrical guide wheel 6 is machined with a guide groove on the outer cylindrical surface, which cooperates with the push rod and the slide rail slider to control the axial movement of the transmission block 12;

[0044] The guide cam 9 is machined with a guide groove on the disc surface, which cooperates with the push rod and the slide rail slider to control the radial movement of the transmission block 12 and the up and down movement vertical to the ground;

[0045] Two slide rail systems are formed by the cylindrical guide wheel 6 and the guide cam 9. The two slide rail systems can independently transmit movement in one direction and are not affected by the movement of the other direction. The two slide rail systems are installed on the transmission block 12, and a spring is connected between the slider and one end of the slide rail to prevent the push rod from being derailed, so that the forward and backward movement of the transmission block 12 is the same as that of the cylindrical guide wheel push rod 18, and the up and down movement is the same as that of the cylindrical guide wheel push rod 18.

[0046] Furthermore, the main shaft 8 and the guide cam 9 are connected via a key 10 and a bearing 11 .

[0047] For details, please refer to the attached Figure 1-4 The power mechanism also includes a rotary cylinder 20 connected to the outside of the housing 19, and a driven shaft 31 connected to one end of the output shaft of the rotary cylinder 20 extending to the inside of the housing 19 through a coupling, the driven shaft 31 and the main shaft 8 are arranged perpendicular to each other, and the ends of the driven shaft 31 and the main shaft 8 close to each other are connected to the spiral bevel gear 1 through a key 7, and the two spiral bevel gears 1 are meshed with each other;

[0048] It should be noted that, in this embodiment, the driving source of the motion mechanism is a rotary cylinder 20, which can reciprocate 360 ​​degrees, and the zeroing calibration step can be omitted compared to the motor. The rotary cylinder 20 drives the spiral bevel gear 1, which is transmitted to the main shaft 8. It should be noted that the reason why the spiral bevel gear 1 is selected for 90-degree transmission is that in the early stage of design, it is envisioned that the manual hand crank is used for transmission, which reduces the investment in semi-automatic construction, and the transmission interface is designed on both sides for better ergonomics.

[0049] The mechanism mainly completes the process of edge glue binding by the motion coupling between the cylindrical guide wheel 6 and the guide cam 9 to the anti-static sponge 27. The different phase differences between the cylindrical guide wheel 6 and the guide cam 9 correspond to the different motion trajectories of the sponge.

[0050] Furthermore, the main shaft 8 and the spiral bevel gear 1 are connected via the shaft sleeves 3 , 5 and the bearing 4 .

[0051] For details, please refer to the attached Figure 1 and 2 The open end of the housing 19 is connected to a product plate 21, one end of the plate body of the product plate 21 is provided with a fitting component slot 22, both sides of the slot body of the fitting component slot 22 are provided with edge glue slots 23, one end of the fitting component slot 22 is provided with a product slot 24, both sides of the product slot 24 are provided with a take-out slot 25, and the slot body of the take-out slot 25 is higher than the product slot 24;

[0052] It should be noted that, in this embodiment, the product plate 21 is also the upper cover of the outer shell 19, and has a through slot for the bonding component on it to prevent the bonding component from interfering with each other during the edge glue bonding operation; the edge glue slot 23 prevents the edge glue tape from being used to ensure the accuracy of the relative position of the edge glue and the product; the product slot 24 is used to place the screen, and has rounded corners to avoid scratching the screen; the pickup slot 25 is lower than the product slot 24, but is not a through slot, which is convenient for taking out the product after completing the edge glue bonding process.

[0053] For details, please refer to the attached Figure 1-8 The top of the guide cam push rod 17 is connected with an upper and lower slider 14, and the upper and lower slider 14 is slidably connected with the upper and lower slide rails 13, and the upper and lower slide rails 13 are connected to the lower surface of the transmission block 12;

[0054] The top end of the cylindrical guide wheel push rod 18 is connected with a front and rear slider 16, and the front and rear slider 16 is slidably connected with the front and rear slide rails 15, and the front and rear slide rails 15 are connected to the outer surface of the transmission block 12;

[0055] The fitting assembly further includes a connecting block 26 connected to the top of the transmission block 12, one end of the connecting block 26 is wrapped with an antistatic sponge 27, and the other end of the connecting block 26 is connected to the top of the transmission block 12;

[0056] The two ends of the bottom of the connecting block 26 are connected to guide rods 28, and an L-shaped plate 29 is slidably connected to the rod body of the guide rod 28. A guide shaft 30 is passed through one end of the L-shaped plate 29, and the end of the guide shaft 30 away from the L-shaped plate 29 is connected to the inner wall of the housing 19;

[0057] The L-shaped plate 29 is connected to the guide rod 28 and the guide shaft 30 via linear bearings 32, and the linear bearings 32 are connected to both ends of the L-shaped plate 29;

[0058] It should be noted that, in this embodiment, the cylindrical guide wheel 6 and the guide cam 9 move in phase with each other in a periodic route:

[0059] Since the edge glue is attached to three sides of the screen, after the screen and the edge glue are placed, one side has been attached, so the bonding component is designed to move upward linearly first, and then move forward and backward linearly after completion. The two movements complete the edge glue bonding action of the other two sides, and then return to the starting position along the original path. Since the edge glue paper is wrapped with a release film, and the adhesion between the edge glue and the screen is greater than the adhesion between the sponge and the release film, not considering the possibility of poor bonding if the original path is returned, the shaft of the above rotating cylinder 20 needs to rotate one circle after the design is completed;

[0060] Furthermore, the bonding edging glue portion of the bonding component is coated with an anti-static sponge 27, which ensures that the edging glue can fit tightly to the screen without damaging the product; there are two symmetrical guide rods 28 in the bonding component, one guide rod 28 is fixed on the outer shell 19 box, and the other guide rod 28 is fixed on the L-shaped plate 29, and the L-shaped plate 29 is connected to the connecting block 26, so that the bonding component only has the freedom of translation along the two guide axes 30; the bonding component is connected to the connecting block 26 of the motion mechanism to complete the edging glue bonding process.

[0061] For details, please refer to the attached Fig. 9 The edge arc angles of the LCM screen are very small, so when performing the bonding action, the transition curve movement between the two bonding actions needs to be as small as possible. The curve in the above table is a comparison of the up and down and left and right displacements. It can be seen that there is no moment when the slopes of the two curves are not zero at the same time. Therefore, it can be obtained that the bonding mechanism does not have simultaneous forward and backward and left and right movements at any time, only linear motion, which meets the design requirements; and it can be obtained from the figure that the motion curve is a periodic even function with the initial position or the peak position of the forward and backward displacement as the axis, which can be adapted to the rotary cylinder 20 that reciprocates 360 degrees.

[0062] The specific operation mode of the present invention is as follows:

[0063] When using the device for edge glue bonding, first put the edge glue paper into the edge glue groove 23 of the product board 21, then put the product screen into the product groove 24, use the thumbs and first metacarpal bones of both hands to press the middle and front ends of the screen, and the thumbs should not exceed the bonding component groove 22, and then use the index finger or middle finger to press the start buttons on both sides of the shell 19 at the same time according to the employee's personal habits to start the rotating cylinder 20;

[0064] The rotating cylinder 20 rotates 360 degrees forward and reverse to move the bonding component. The rotating cylinder 20 drives the driven shaft 31 to rotate, and drives the arc bevel gear 1 on its shaft body to move through the driven shaft 31. The two arc bevel gears 1 are meshed with each other, thereby driving the main shaft 8 to operate, and the cylindrical guide wheel 6 and the guide cam 9 on its shaft body are driven to rotate through the main shaft 8. The cylindrical guide wheel push rod 18 is guided by the guide groove on the cylindrical guide wheel 6 to move back and forth, and the guide cam push rod 17 is guided by the guide groove on the guide cam 9 to move up and down. The groove body design of the two guide grooves makes the above two actions not overlap, so that the transmission block 12 connected to the guide cam push rod 17 and the cylindrical guide wheel push rod 18 periodically moves back and forth and up and down, and then drives the connecting block 26 to perform periodic movements through the transmission block 12 to complete the edge glue bonding action.

[0065] The above is an exemplary description of the present invention in combination with the accompanying drawings. It is obvious that the specific implementation of the present invention is not limited to the above-mentioned method. As long as such non-substantial improvements are made by adopting the method concept and technical solution of the present invention, or the concept and technical solution of the present invention are directly applied to other occasions without improvement, they are all within the protection scope of the present invention.

Claims

1. A semi-automatic bonding device for LCM screen edge glue, comprising a housing (19), characterized in that: The interior of the housing (19) is connected with a fitting component and a power mechanism, and the fitting component and the power mechanism are connected to each other; The power mechanism comprises a main shaft (8) connected to the inside of the housing (19), and the outer surface of the main shaft (8) is connected in sequence to a cylindrical guide wheel (6) and a guide cam (9); The fitting assembly comprises a cylindrical guide wheel push rod (18) slidably connected to the guide groove on the outer surface of the cylindrical guide wheel (6), and a guide cam push rod (17) slidably connected to the guide groove on the outer surface of the guide cam (9), and the top ends of the rod bodies of the cylindrical guide wheel push rod (18) and the guide cam push rod (17) are both connected to the transmission block (12).

2. A semi-automatic bonding device for LCM screen edge glue according to claim 1, characterized in that: The power mechanism further comprises a rotary cylinder (20) connected to the outside of the housing (19), and a driven shaft (31) connected to one end of the output shaft of the rotary cylinder (20) extending to the inside of the housing (19) through a coupling, wherein the driven shaft (31) and the main shaft (8) are arranged perpendicular to each other, and the ends of the driven shaft (31) and the main shaft (8) close to each other are connected to a spiral bevel gear (1) through a key (7), and the two spiral bevel gears (1) are meshed with each other.

3. The semi-automatic bonding device for LCM screen edge glue according to claim 1, characterized in that: The open end of the shell (19) is connected to a product plate (21), one end of the plate body of the product plate (21) is provided with a bonding component groove (22), both sides of the groove body of the bonding component groove (22) are provided with edge glue grooves (23), one end of the bonding component groove (22) is provided with a product groove (24), both sides of the product groove (24) are provided with pickup grooves (25), and the groove body of the pickup groove (25) is higher than the product groove (24).

4. The semi-automatic bonding device for LCM screen edge glue according to claim 1, characterized in that: The top end of the cylindrical guide wheel push rod (18) is connected to the front and rear slide rails (16), and the guide cam push rod (17) is connected to the transmission block (12) through the front and rear slide rails (16).

5. The semi-automatic bonding device for LCM screen edge glue according to claim 1, characterized in that: The top end of the guide cam push rod (17) is connected to an upper and lower slider (14), the upper and lower sliders (14) are slidably connected to upper and lower slide rails (13), and the upper and lower slide rails (13) are connected to the lower surface of the transmission block (12).

6. The semi-automatic bonding device for LCM screen edge glue according to claim 1, characterized in that: The top end of the cylindrical guide wheel push rod (18) is connected to a front and rear slider (16), the front and rear slider (16) is slidably connected to the front and rear slide rails (15), and the front and rear slide rails (15) are connected to the outer surface of the transmission block (12).

7. The semi-automatic bonding device for LCM screen edge glue according to claim 1, characterized in that: The fitting assembly also includes a connecting block (26) connected to the top of the transmission block (12), one end of the connecting block (26) is wrapped with an antistatic sponge (27), and the other end of the connecting block (26) is connected to the top of the transmission block (12).

8. The semi-automatic bonding device for LCM screen edge glue according to claim 7, characterized in that: The two ends of the bottom of the connecting block (26) are connected to guide rods (28), the rod body of the guide rod (28) is slidably connected to an L-shaped plate (29), one end of the L-shaped plate (29) is penetrated by a guide shaft (30), and the end of the guide shaft (30) away from the L-shaped plate (29) is connected to the inner wall of the housing (19).

9. The semi-automatic bonding device for LCM screen edge glue according to claim 1, characterized in that: The L-shaped plate (29) is connected to the guide rod (28) and the guide shaft (30) via linear bearings (32), and the linear bearings (32) are connected to both ends of the L-shaped plate (29).

10. A semi-automatic bonding method for LCM screen edge glue, used for implementing a semi-automatic bonding device for LCM screen edge glue according to any one of claims 1 to 9, characterized in that: The following steps are involved: Step 1: Place the edge tape into the edge tape groove (23) of the product plate (21), and then place the product screen into the product groove (24), completing the loading of the edge tape and the product screen; Step 2: Use both hands to hold the front and middle part of the screen, and make sure that the front and middle part of the screen does not exceed the groove body of the fitting component groove (22), so as to adjust the position of the product screen; Step 3: Press the start buttons on both sides of the housing (19) with your fingers to start the rotating cylinder (20); Step 4: The main shaft (8) is driven to rotate by the rotary cylinder (20), and the main shaft (8) drives the connecting block (26) to perform periodic forward and backward and up and down movements to complete the action of edge glue bonding.

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