Automatic attachment device for side wall of backlight module with shading tape

Abstract

The present invention discloses an automatic attachment device for the side walls of a backlight module using a light-shielding tape, comprising a frame, a feeding device, a clamping device, a correction device, an attachment gripper, a film-tearing device, a rotating device, a pressing device, and a detection device. The attachment device is used to attach the light-shielding tape to the backlight module, and the film-tearing device is arranged at the lower end of the attachment device to remove the protective film of the light-shielding tape. The feeding device can simultaneously place multiple backlight modules, thereby realizing the automatic attachment of the assembly line backlight module. The correction device of the attachment device adjusts the reference point of the backlight module, and then the attachment device cooperates with the rotating device to realize the attachment of the tape to the four side walls of the attachment device. The film-tearing device cooperates with the rotating device to realize the removal of the protective films of the tapes on the four side walls at one station. The tape is then pressed by the pressing device in the next process to realize one-time attachment, thereby improving the precision and efficiency of automated production.

Description

Technical Field

[0001] The present invention relates to the field of liquid crystal display processing equipment, and in particular to an automatic light-shielding tape backlight module side wall attaching device. Background Art

[0002] The backlight module is a key component of liquid crystal display (LCD) panels. Its function is to provide sufficient brightness and evenly distributed light to properly display images. The backlight provides the light source for the LCD panel. It primarily consists of a light source, light guide plate, optical film, and a plastic frame. Backlights offer high brightness, long life, and uniform illumination. Light-blocking tape, used to block light, is primarily used for securing LCD panels and backlight modules in electronic devices and for various light-blocking applications. It minimizes the impact of light in applications requiring controlled brightness.

[0003] In the production of mobile phones, computers, tablets, etc., it is necessary to attach blackout tape to the side walls of the backlight module. The existing production method is manual attachment, which is cumbersome and slow, making it difficult to meet the needs of automated production. In addition, manual attachment is prone to deviation or misalignment, affecting the product yield. Of course, there are also automated mechanical equipment, but it has problems with poor automation stability and poor fitting accuracy. Among them, the side wall attachment method has the problem of inconsistent backlight module thickness and relatively unstable attachment and fixation. Summary of the Invention

[0004] The main purpose of the present invention is to provide an automatic light-shielding tape backlight module side wall attachment device, which aims to achieve automatic light-shielding tape attachment to the backlight module side wall through automated equipment with high attachment accuracy.

[0005] To achieve the above-mentioned purpose, the present invention provides an automatic light-shielding tape backlight module side wall attaching device, comprising:

[0006] A frame, wherein the frame is provided with a transport frame distributed along the length thereof, the transport frame is provided with a plurality of workstations at intervals, the workstations are partially provided with a first suction cup, and the upper portion of some of the workstations is provided with a first detection device;

[0007] A feeding device, which is used to place the backlight module and transport the backlight module;

[0008] A clamping device, the clamping device is used to clamp the backlight module of the feeding device to the correction device;

[0009] A correction device, wherein a plurality of correction devices are provided and used to perform reference point correction on the position of the backlight module;

[0010] An attaching device is provided on the first movable frame and is used to attach the light-shielding tape to the side wall surface of the backlight module, wherein the light-shielding tape has a width suitable for the side wall surface, and the first movable frame can drive the attaching device to perform horizontal, vertical, and pivotal movements;

[0011] The film-tearing device is provided at the lower end of the attaching device and is used to remove the protective film of the light-shielding tape.

[0012] A rotating device, which is provided in the middle of the attaching device and the film tearing device and is used to drive the backlight module to rotate;

[0013] A pressing device, at least one of which is provided and is used to press the tape against the side wall of the backlight module;

[0014] A detection device is used to detect whether the adhesion of the light-shielding tape meets a predetermined value.

[0015] Preferably, the first movable frame includes a three-axis robot and an attachment device pivotally mounted on the three-axis robot, the three-axis robot includes a base, a first axis portion horizontally pivotally mounted on the base, and a second axis portion horizontally pivotally mounted on the first axis portion, and the attachment device is arranged on the second axis portion.

[0016] Preferably, the attaching device comprises a first attaching rod and a second attaching rod which are cross-arranged, and the first attaching rod and the second attaching rod are respectively provided with a vacuum suction cup.

[0017] Preferably, the first attachment rod and the second attachment rod are cross-shaped.

[0018] Preferably, the frame is provided with a transverse movable frame and a longitudinal movable frame provided on the transverse movable frame, and the clamping device is a suction cup group, and the suction cup group is provided on the longitudinal movable frame.

[0019] Preferably, the film tearing device comprises a pivotally mounted roller, and the roller is provided with roller strips distributed along its circumference.

[0020] Preferably, the rotating device includes a telescopic motor and a rotating motor arranged on the upper end of the telescopic motor, the rotating motor is provided with a positioning seat, the backlight module is arranged on the positioning seat, and the positioning seat is connected to the vacuum device.

[0021] Preferably, the pressing device includes a first movable frame, a first ball screw provided on the first movable frame, and two first screw nuts provided on the first ball screw, wherein the first screw nuts are provided with a pivotally mounted pressure wheel.

[0022] Preferably, an elastic pad is provided on the outer wall of the pressing wheel.

[0023] Preferably, the frame is further provided with a fixing device, which is respectively provided on the attaching device and the film tearing device. The fixing device includes a fixing seat and a pressure seat arranged opposite to the fixing seat, and the pressure seat is installed on the telescopic motor.

[0024] The technical solution of the present invention can place multiple backlight modules at the same time through the feeding device, thereby realizing the automatic attachment of the assembly line backlight modules. The clamping device clamps the backlight module to the attaching device, and the reference point of the backlight module is adjusted through the correction device of the attaching device. Then, through the cooperation of the attaching device and the rotating device, the tape is attached to the four side walls of the attaching device. Then, through the cooperation of the film tearing device and the rotating device, the protective film of the tape on the four side walls is removed at one workstation. In the next process, the tape is pressed by the pressing device to achieve one-time attachment, thereby improving the precision and efficiency of automated production. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 A three-dimensional diagram of the present invention Figure 1 ;

[0026] Figure 2 A three-dimensional diagram of the present invention Figure 2 ;

[0027] Figure 3 Schematic diagram of the present invention Figure 1 ;

[0028] Figure 4 Schematic diagram of the present invention Figure 1 ;

[0029] Figure 5 Schematic diagram of the attachment device structure;

[0030] Figure 6 Schematic diagram of the pressing device.

[0031] In the figure, 1 is a frame, 11 is a feeding device, 12 is a clamping device, 13 is a correction device, 2 is a three-axis robot, 21 is a base, 22 is a first axis, 23 is a second axis, 3 is an attaching device, 31 is a first attaching rod, 32 is a second attaching rod, 4 is a film tearing device, 41 is a roller, 42 is a roller strip, 5 is a rotating device, 6 is a pressing device, 60 is a pressing wheel, 7 is a fixing device, 71 is a fixing seat, 72 is a pressing seat, and 100 is a tape. DETAILED DESCRIPTION

[0032] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0033] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, top, bottom, inside, outside, vertical, horizontal, longitudinal, counterclockwise, clockwise, circumferential, radial, axial...), 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 indications will also change accordingly.

[0034] In addition, if there are descriptions involving "first" or "second" in the embodiments of the present invention, the descriptions of "first" or "second" are only 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 such features. In addition, the technical solutions between the various embodiments can be combined with each other, but this must be based on the fact that ordinary technicians in this field can implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0035] like Figures 1 to 6 As shown, a device for automatically attaching a light-shielding tape to a backlight module side wall includes:

[0036] A frame 1, wherein the frame 1 is provided with a transport frame distributed along its length, the transport frame is provided with a plurality of workstations at intervals, the workstations are partially provided with first suction cups, and the upper portion of some of the workstations is provided with a first detection device;

[0037] A feeding device 11 (not shown), which is used to place the backlight module and transport the backlight module;

[0038] A clamping device 12, which is used to clamp the backlight module of the feeding device 11 to the correction device 13;

[0039] The correction device 13 (which is the existing technology and preferably adopts a screw pair) is provided with multiple parts (including a feeding device 11, an attaching device 3 and a film tearing device 4) for performing reference point correction on the position of the backlight module;

[0040] An attaching device 3 is provided on the first movable frame and is used to attach the light-shielding tape 100 to the side wall of the backlight module. The light-shielding tape 100 has a width that is consistent with the width of the side wall. The first movable frame can drive the attaching device 3 to perform horizontal, vertical, and pivotal movements.

[0041] The film-tearing device 4 is provided at the lower end of the attaching device 3 and is used to remove the protective film of the light-shielding tape 100.

[0042] The rotating device 5 is provided in the middle of the attaching device 3 and the film tearing device 4, and is used to drive the backlight module to rotate;

[0043] A pressing device 6, at least one of which is provided and is used to press the tape 100 against the side wall of the backlight module;

[0044] A detection device is used to detect whether the adhesion of the light-shielding tape 100 meets a predetermined value.

[0045] Multiple backlight modules can be placed at the same time through the feeding device 11, thereby realizing the automatic attachment of the assembly line backlight modules. The clamping device 12 clamps the backlight module to the attaching device 3. The reference point of the backlight module is adjusted by the correction device 13 of the attaching device 3. Then, the attachment of the tape 100 to the four side walls of the attaching device 3 is realized through the cooperation of the attaching device 3 and the rotating device 5. Then, the protective film of the tape 100 on the four side walls is removed at one workstation through the cooperation of the film tearing device 4 and the rotating device 5. Then, in the next process, the tape 100 is pressed by the pressing device 6 to realize one-time attachment, thereby improving the precision and efficiency of automated production.

[0046] In this embodiment of the present invention, the first mobile frame includes a three-axis robot 2 and an attaching device 3 pivotally mounted on the three-axis robot 2. The three-axis robot 2 includes a base 21, a first shaft 22 horizontally pivotally mounted on the base 21, and a second shaft 23 horizontally pivotally mounted on the first shaft 22. The attaching device 3 is disposed on the second shaft 23. The three-axis robot 2 allows the adhesive tape 100 to be adsorbed onto the attaching device 3, which also facilitates attaching the adhesive tape 100 to the backlight module.

[0047] In this embodiment of the present invention, the attaching device 3 includes a first attaching rod 31 and a second attaching rod 32 arranged crosswise, each of which is equipped with a vacuum suction cup. Driven by a three-axis robot 2, the tape 100, which has been cut to a predetermined size, is attached to the ends of the first and second attaching rods 31 and 32 that do not have adhesive surfaces. Driven by the three-axis robot 2, the tape 100 is then positioned so that the adhesive surfaces face the sidewall of the backlight module and is moved to a designated position.

[0048] In the embodiment of the present invention, the first attaching rod 31 and the second attaching rod 32 are cross-shaped, that is, after the tape 100 is attached to the backlight module on one side, the other side can be directly opposite to the tape 100, and then the attaching device 3 is rotated, thereby achieving the two steps of attachment and adsorption.

[0049] In the embodiment of the present invention, the frame 1 is provided with a transverse movable frame and a longitudinal movable frame provided on the transverse movable frame, and the clamping device 12 is a suction cup assembly provided on the longitudinal movable frame. Thus, the backlight module is moved from the conveyor belt to the position of the attaching device 3. In a specific embodiment, the conveyor device can also be used for direct transport.

[0050] In this embodiment of the present invention, the film-tearing device 4 includes a pivotally mounted roller 41 having roller strips 42 disposed along its circumference. The adhesive tape 100 is torn off by the cooperation of the roller 41 and the roller strips 42, thereby removing the protective film. The film-tearing device 4 may refer to the prior art.

[0051] In this embodiment of the present invention, the rotating device 5 includes a telescopic motor and a rotating motor located above the telescopic motor. The rotating motor is provided with a positioning seat, on which the backlight module is located, and the positioning seat is connected to the vacuum device. The rotating device 5 can be used to vertically move the backlight module along a predetermined height. After the protective film on one side is removed, the protective film on the other two sides can be removed by rotating the rotating device 5 to a predetermined position. The attaching device 3 is also provided with a rotating device 5, thereby achieving multi-dimensional adjustment.

[0052] In an embodiment of the present invention, the pressing device 6 includes a first movable frame, a first ball screw mounted on the first movable frame, and two first screw nuts mounted on the first ball screw. The first screw nuts are provided with a pivotally mounted pressure wheel 60. The pressure wheel 60 is provided to apply the adhesive tape 100, and in a specific embodiment, the pressing device 6 can be repeatedly pressed multiple times.

[0053] In the embodiment of the present invention, an elastic pad is provided on the outer wall of the pressing wheel 60 .

[0054] In this embodiment of the present invention, the frame 1 is further provided with a fixing device 7, which is respectively provided on the attaching device 3 and the film tearing device 4. The fixing device 7 includes a fixing seat 71 and a pressure seat 72 arranged opposite to the fixing seat 71. The pressure seat 72 is mounted on the telescopic motor. This achieves the purpose of fixing the side frame of the backlight module and preventing displacement during film tearing or gluing.

[0055] Some structures such as the screw pair, the rotating motor or the telescopic motor can be replaced by existing technologies, so some of them are not shown in the figure.

[0056] The above description is only a preferred embodiment of the present invention and does not limit the patent scope of the present invention. All equivalent structural transformations made by using the contents of the present invention description and drawings under the inventive concept of the present invention, or direct / indirect application in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. An automatic light-shielding tape backlight module side wall attachment device, characterized in that: include: A frame, wherein the frame is provided with a transport frame distributed along the length thereof, the transport frame is provided with a plurality of workstations at intervals, the workstations are partially provided with a first suction cup, and the upper portion of some of the workstations is provided with a first detection device; A feeding device, which is used to place the backlight module and transport the backlight module; A clamping device, the clamping device is used to clamp the backlight module of the feeding device to the correction device; A correction device, wherein a plurality of correction devices are provided and used to perform reference point correction on the position of the backlight module; An attaching device is provided on the first movable frame and is used to attach the light-shielding tape to the side wall surface of the backlight module, wherein the light-shielding tape has a width suitable for the side wall surface, and the first movable frame can drive the attaching device to perform horizontal, vertical, and pivotal movements; The film-tearing device is provided at the lower end of the attaching device and is used to remove the protective film of the light-shielding tape. A rotating device, which is provided in the middle of the attaching device and the film tearing device and is used to drive the backlight module to rotate; A pressing device, at least one of which is provided and is used to press the tape against the side wall of the backlight module; A detection device, the detection device is used to detect whether the adhesion of the light-shielding tape meets a predetermined value; The attaching device comprises a first attaching rod and a second attaching rod arranged crosswise, wherein the first attaching rod and the second attaching rod are respectively provided with a vacuum suction cup; The first attachment rod and the second attachment rod are in a cross shape; The film tearing device includes a pivotally mounted roller, and the roller is provided with roller strips distributed along its circumference; The rotating device includes a telescopic motor and a rotating motor provided on the upper end of the telescopic motor. The rotating motor is provided with a positioning seat. The backlight module is provided on the positioning seat. The positioning seat is connected to the vacuum device. The pressing device includes a first movable frame, a first ball screw provided on the first movable frame, and two first screw nuts provided on the first ball screw, wherein the first screw nuts are provided with a pivotally mounted pressing wheel; an outer wall of the pressing wheel is provided with an elastic pad; The frame is further provided with a fixing device, which is respectively arranged on the attaching device and the film tearing device. The fixing device includes a fixing seat and a pressure seat arranged opposite to the fixing seat, and the pressure seat is installed on the telescopic motor.

2. The automatic light-shielding tape backlight module side wall attaching device according to claim 1, characterized in that: The first mobile frame includes a three-axis robot, and the attaching device is pivotally mounted on the three-axis robot. The three-axis robot includes a base, a first shaft portion horizontally pivotally mounted on the base, and a second shaft portion horizontally pivotally mounted on the first shaft portion, and the attaching device is provided on the second shaft portion.

3. The automatic light-shielding tape backlight module side wall attaching device according to claim 1, characterized in that: The frame is provided with a transverse movable frame and a longitudinal movable frame arranged on the transverse movable frame. The clamping device is a suction cup group, and the suction cup group is arranged on the longitudinal movable frame.

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