An automatic assembly apparatus

Abstract

The application relates to an automatic assembling device which comprises a backlight plate feeding mechanism, a liquid crystal screen feeding mechanism, a film tearing mechanism, a pasting mechanism and a tape pasting mechanism; the backlight plate feeding mechanism and the tape pasting mechanism are located on a backlight plate flow line, the liquid crystal screen feeding mechanism is located on a liquid crystal screen feeding line, the film tearing mechanism is located between the backlight plate flow line and the liquid crystal screen feeding line, one end of the pasting mechanism is on the liquid crystal screen feeding line, and the other end is located on the backlight plate flow line; the backlight plate feeding mechanism is used for feeding the backlight plate and conveying the backlight plate to the film tearing mechanism; the liquid crystal screen feeding mechanism is used for feeding the liquid crystal screen and conveying the liquid crystal screen to the pasting mechanism; the film tearing mechanism is used for tearing off the protective film on the pasting surface of the backlight plate and the liquid crystal screen; the pasting mechanism is used for pasting the backlight plate and the liquid crystal screen; and the tape pasting mechanism is used for pasting an auxiliary film tearing tape on the surface of the liquid crystal screen. The application has the effect of low production efficiency of backlight plate assembling.

Description

Technical Field

[0001] This application relates to the field of LCD screen assembly, and in particular to an automated assembly device. Background Technology

[0002] With the rapid development of the electronics industry, the demand for electronic displays has gradually increased. Backlight films are needed to cover the surface of these displays to ensure their proper functioning. A backlight is a light source located behind the LCD screen, and its luminous effect directly affects the visual effect of the LCD module. The LCD screen itself does not emit light; it displays graphics as a result of light modulation. It is widely used in MP3 players, industrial control displays, monitoring displays, mobile phones, tablets, and other industries. The backlight panel is the light source device used to ensure brightness behind the LCD screen; the assembly of backlight panels is generally carried out using automated equipment.

[0003] Currently, automated production lines for backlight assembly are generally arranged in a straight line, including parallel LCD screen loading lines and backlight assembly lines. LCD screens and backlights are loaded onto the LCD screen loading line and backlight assembly line respectively. After the protective film is removed, the backlights are conveyed to the LCD screen loading line to be bonded to the LCD screen, and then conveyed back to the backlight assembly line, and then the next backlight is conveyed to the LCD screen loading line.

[0004] Regarding the aforementioned technologies, when bonding the backlight panel to the LCD screen, the backlight panel needs to be transported to the LCD screen loading line and then transported back to complete the bonding of the backlight panel before the next backlight panel is bonded to the LCD screen. This results in low efficiency in the bonding process of the backlight panel and the LCD screen, and consequently, low production efficiency in backlight panel assembly. Summary of the Invention

[0005] In order to improve the efficiency of the bonding process between the backlight panel and the LCD screen, thereby increasing the efficiency of the backlight panel assembly production line, this application provides an automatic assembly equipment.

[0006] The automatic assembly equipment provided in this application adopts the following technical solution:

[0007] An automated assembly device includes a backlight board loading mechanism, an LCD screen loading mechanism, a film peeling mechanism, a bonding mechanism, and a tape attaching mechanism. The backlight board loading mechanism and the tape attaching mechanism are located on a backlight board production line. The LCD screen loading mechanism is located on an LCD screen loading line. The film peeling mechanism is located between the backlight board production line and the LCD screen loading line. One end of the bonding mechanism is on the LCD screen loading line, and the other end is on the backlight board production line. The backlight board loading mechanism is used for loading the backlight board and conveying it to the film peeling mechanism. The LCD screen loading mechanism is used for loading the LCD screen and conveying it to the bonding mechanism. The film peeling mechanism is used to peel off the protective film from the bonding surfaces of the backlight board and the LCD screen. The tape attaching mechanism is used to attach auxiliary film peeling tape to the surface of the LCD screen.

[0008] The bonding mechanism includes a bonding frame, a first bonding plate, a second bonding plate, a first vertical drive, a first horizontal drive, a second vertical drive, and a second horizontal drive. The first and second bonding plates are slidably fitted onto the bonding frame. The first and second vertical drives are used to drive the first and second bonding plates to move vertically. The first and second horizontal drives are used to drive the first and second bonding plates to move along the Y-axis. The first and second bonding plates are used to transport the backlight panel and the bonded screen. When the first bonding plate is driven by the first vertical drive and the first horizontal drive to transport the backlight panel to the LCD screen production line, the second bonding plate is driven by the second vertical drive and the second horizontal drive to transport the bonded screen to the backlight panel production line. During the transport of the backlight panel and the bonded screen, the first and second bonding plates pass alternately up and down.

[0009] By adopting the above technical solution, the backlight panel and the backlight feeding mechanism are conveyed to the first bonding plate and the backlight panel. The backlight panel has its protective film removed by the film peeling mechanism. The LCD screen is fed by the LCD screen feeding mechanism and conveyed to the second bonding plate and bonded to the backlight panel located on top of the second bonding plate. The backlight panel is conveyed by the first bonding plate toward the direction close to the LCD screen feeding line. The bonded screen is conveyed by the second bonding plate toward the direction close to the backlight panel assembly line. When the first bonding plate and the second bonding plate are conveyed, the first bonding plate and the second bonding plate pass by alternately up and down, and repeat. The bonded screen is conveyed along the backlight panel assembly line to the tape attaching mechanism. When the tape attaching mechanism attaches the auxiliary film peeling tape tightly to the top of the screen, the backlight panel and the LCD screen are assembled. The first bonding plate and the second bonding plate pass by alternately up and down, and repeat.

[0010] This design allows for the simultaneous bonding of a backlight board and an LCD screen during the loading of a backlight board. Furthermore, when a bonded screen is transported to the bonding mechanism, a backlight board and an LCD screen are still being bonded. This results in higher utilization of the assembly time for the backlight board and LCD screen, leading to higher processing efficiency. It also addresses the issue of low efficiency in the backlight board bonding process, which previously required the backlight board to be transported to the LCD screen loading line and then back to complete the bonding before proceeding to the next backlight board and LCD screen.

[0011] Optionally, both the first and second bonding plates are fixedly provided with positioning components. The positioning components include a lateral positioning cylinder and a longitudinal positioning cylinder. The lateral positioning cylinder pushes the backlight plate to a designated position along the X-axis, and the longitudinal positioning cylinder pushes the backlight plate to a designated position along the Y-axis.

[0012] By adopting the above technical solution, when the backlight panel is conveyed to the first or second bonding plate by the backlight panel feeding mechanism, the positioning component drives the piston rod of the lateral positioning cylinder to move the backlight panel along the X-axis direction, and the piston rod of the longitudinal positioning cylinder to move the backlight panel along the Y-axis direction, thereby fixing the backlight panel in the position of the first or second bonding plate, making the bonding of the backlight panel and the LCD screen simpler and the bonding accuracy of the backlight panel and the LCD screen higher.

[0013] Optionally, the first and second bonding plates are fixedly provided with lighting strips. When the backlight is located on the first and second bonding plates, the lighting strips illuminate the sides of the backlight that abut against the piston rods of the transverse positioning cylinder and the longitudinal positioning cylinder, respectively. The bonding frame is fixedly provided with a light sensor for sensing the light from the lighting strips.

[0014] By adopting the above technical solution, when the backlight panel and the LCD screen are bonded together, the light sensor detects the light emitted by the lighting strip, making the positioning of the horizontal and vertical sides of the backlight panel during bonding faster and easier, resulting in higher positioning accuracy and higher bonding precision between the backlight panel and the LCD screen.

[0015] Optionally, the backlight board feeding mechanism includes a backlight board feeding conveyor belt, a feeding positioning block, and a sensor. The backlight board feeding conveyor belt is arranged along the X-axis direction. The feeding positioning block is fixedly arranged at the free end of the backlight board feeding conveyor belt. The sensor is fixedly arranged on one side of the backlight board feeding conveyor belt. When the backlight board feeding conveyor belt feeds the backlight board to abut against the feeding positioning block, the feeding sensor transmits the position signal of the backlight board to the backlight board feeding conveyor belt. Upon receiving the signal, the backlight board feeding conveyor belt stops feeding.

[0016] By adopting the above technical solution, the backlight panel is conveyed by the backlight panel feeding conveyor belt. When the backlight panel is conveyed to abut against the feeding positioning block, the backlight panel feeding conveyor belt stops conveying. When the backlight panel is conveyed to the bonding mechanism, the backlight panel feeding conveyor belt starts conveying the next backlight panel. This ensures that there is only one backlight panel at a time at the free end of the backlight panel feeding conveyor belt, which facilitates the conveying of the backlight panel to the bonding mechanism. At the same time, the intermittent conveying of the backlight panel feeding conveyor belt also reduces energy consumption, making the operation of the backlight panel feeding mechanism more energy-efficient.

[0017] Optionally, the backlight board loading mechanism further includes a horizontal transfer assembly and a horizontal transfer drive assembly. The horizontal transfer assembly includes a transfer suction cup group and a vertical transfer cylinder. The horizontal transfer drive assembly is used to drive the vertical transfer cylinder to move along the X-axis. The transfer suction cup group is fixedly mounted on the piston rod of the vertical transfer cylinder. The transfer suction cup group includes two transfer suction cup bodies. When one of the transfer suction cup bodies adsorbs the backlight board and transports the backlight board to the bonding mechanism, the other transfer suction cup body adsorbs the bonded screen and transports the screen to the tape bonding mechanism.

[0018] By adopting the above technical solution, when the horizontal transfer component is working, the piston rod of the vertical transfer cylinder drives the transfer suction cup assembly to move closer to the backlight panel feeding conveyor belt. The two transfer suction cups directly adsorb the backlight panel and the screen respectively. The vertical transfer cylinder resets, and the horizontal transfer drive unit drives the transfer suction cup assembly to move away from the backlight panel feeding conveyor belt along the X-axis until the adsorbed backlight panel is located on top of the first or second bonding plate, and the adsorbed screen enters the bonding mechanism. The piston rod of the vertical transfer cylinder drives the transfer suction cup assembly to lower the backlight panel and the screen respectively, completing the transfer of the backlight panel and the screen. The backlight panel and the screen are transferred simultaneously, making the mechanism more integrated, occupying less space, reducing control difficulty, and saving more energy.

[0019] Optionally, the backlight board loading mechanism further includes a horizontal transfer frame. The horizontal transfer drive assembly includes a horizontal transfer screw, a horizontal transfer block, a transfer guide rod, and a transfer drive motor. The transfer drive motor is fixedly mounted on the horizontal transfer frame. The horizontal transfer screw is rotatably connected to the horizontal transfer frame along the X-axis and fixedly connected to the output shaft of the transfer drive motor. The horizontal transfer block is threadedly connected to the horizontal transfer screw. The transfer guide rod is fixedly mounted on the horizontal transfer frame and passes through the horizontal transfer block along the X-axis. The transfer guide rod and the horizontal transfer block are in sliding engagement. The horizontal transfer block is fixedly connected to the cylinder body of the vertical transfer cylinder.

[0020] By adopting the above technical solution, when the transfer drive motor is driven, the output shaft of the transfer motor drives the horizontal transfer screw to rotate. The rotation of the horizontal transfer screw drives the horizontal moving block to move along the X-axis direction. The movement of the horizontal moving block along the X-axis direction drives the vertical transfer cylinder to move, thus completing the drive of the vertical transfer cylinder. Using the horizontal transfer screw to drive in the X-axis direction makes the driving accuracy of the horizontal drive component higher, and at the same time makes the control of the X-axis position of the vertical transfer cylinder simpler.

[0021] Optionally, the LCD screen loading mechanism includes an LCD loading frame, an LCD feeding assembly, and an LCD horizontal transfer assembly. The LCD feeding assembly includes an LCD conveying plate, an LCD rodless cylinder, a double-sided adhesive tape, an active adhesive tape roller, a driven adhesive tape roller, and an LCD drive motor. The LCD rodless cylinder is fixedly mounted on the LCD loading frame, and the LCD conveying plate is fixedly mounted on the slider of the LCD rodless cylinder. The active adhesive tape roller is rotatably mounted on the LCD loading frame near the bonding mechanism. The LCD drive motor is fixedly mounted on the LCD loading frame, and its output shaft is fixedly connected to the active adhesive tape roller. The driven adhesive tape roller is rotatably connected to the end of the LCD loading frame away from the bonding mechanism. The double-sided adhesive tape is wound around the active and driven adhesive tape rollers and located on top of the LCD conveying plate. When the active tape roller drives the driven tape roller to rotate via the double-sided adhesive tape, the double-sided adhesive tape is taut. While the double-sided adhesive tape is taut, a gap exists between it and the liquid crystal conveyor plate. The liquid crystal horizontal transfer assembly is used to transfer the liquid crystal screen from the liquid crystal screen loading mechanism to the backlight panel. When the next liquid crystal screen is bonded to the double-sided adhesive tape, the liquid crystal transfer plate moves the two liquid crystal screens towards the bonding mechanism until one of the liquid crystal screens is at the bottom of the liquid crystal horizontal transfer assembly. Simultaneously with the liquid crystal horizontal transfer assembly adsorbing the liquid crystal screen, the active tape roller rotates, causing the double-sided adhesive tape to taut. The liquid crystal conveyor plate resets for the next transport. The double-sided adhesive tape keeps the position of any unadsorbed liquid crystal screens unchanged when the liquid crystal conveyor plate resets.

[0022] By adopting the above technical solution, the double-sided adhesive allows the LCD conveyor plate to transport two LCD screens simultaneously, while also reducing the ineffective transport stroke of the LCD conveyor plate. This increases the number of LCD screens that can be transported in the same stroke, making it more practical.

[0023] Optionally, the film-peeling mechanism includes a pneumatic suction block, a film-peeling motor, and a vertically moving rodless cylinder. The vertically moving rodless cylinder is fixedly mounted on the bonding frame, the film-peeling motor is fixedly mounted on the slider of the vertically moving rodless cylinder, and the pneumatic suction block is fixedly mounted on the output shaft of the film-peeling motor and located at the top of the bonding mechanism. When the first bonding plate or the second bonding plate conveys the backlight panel to the LCD screen loading line, the output shaft of the film-peeling motor drives the pneumatic suction block to peel off the protective film on the surface of the backlight panel.

[0024] By adopting the above technical solution, when the first or second bonding plate conveys the backlight panel to the LCD screen loading line, the slider of the vertically moving rodless cylinder drives the film-tearing motor to move closer to the backlight panel. The output shaft of the film-tearing motor drives the pneumatic suction block to adsorb the protective film on the top of the backlight panel. The film-tearing motor resets, and the pneumatic suction block separates the protective film from the top of the backlight panel. The vertically moving rodless cylinder moves away from the backlight panel, and at the same time, the first or second bonding plate moves the backlight panel closer to the LCD screen loading line, so that the protective film of the backlight panel is completely detached from the backlight panel. When the first or second bonding plate conveys the backlight panel away from the film-tearing mechanism, the pneumatic suction block releases the adsorption of the protective film on the backlight panel, so that the protective film of the backlight panel falls into the waste box placed at the bottom of the bonding mechanism. The film-tearing mechanism is integrated into the bonding mechanism and works in conjunction with the bonding mechanism, making the processing steps more intensive, more efficient, and less time-consuming.

[0025] Optionally, the tape application mechanism includes a tape application frame, a tape application conveyor belt, a tape roller, a tape roll, a glue roll roller, and a pressure block. The tape application conveyor belt is mounted on the tape application frame and used to transport the screen. The tape roller is rotatably connected to the tape application frame. The tape roll is fixedly connected to the tape roller. The glue roll roller is rotatably connected to the tape application frame and one end is driven to rotate by a first tape application driver. One side of the pressure block is rotatably fitted to the tape application frame and is driven to rotate by a second tape application driver. The tape from the tape roll is laid at the bottom of the pressure block. The tape from the tape roll has tear marks. When the pressure block applies adhesive to the screen, the screen is located at the bottom of the pressure block. The pressure block rotates to press the tape from the tape roll against the top of the screen.

[0026] By adopting the above technical solution, when the screen is transported to the tape application mechanism via the horizontal transfer component, the tape application conveyor belt transports the screen to the bottom of the pressure block. The second tape application drive unit drives the pressure block to rotate, pressing the tape located at the bottom of the pressure block against the top of the screen, so that the tape adheres to the screen. Finally, the adhered tape is separated from the tape roll by the easy-tear marks. The tape roller rotates to roll up the protective layer of the tape that has lost its adhesive layer and drives the tape roll to rotate, thereby enabling the tape application mechanism to achieve automatic tape application, reducing the need for operators, and making production more efficient and precise.

[0027] Optionally, the tape application mechanism further includes a tape application pushing cylinder and a pushing block. The tape application pushing cylinder is fixedly mounted on the top of the tape application conveyor belt, and the pushing block is fixedly connected to the piston rod of the tape application pushing cylinder. When the screen is located on the tape application conveyor belt, the pushing block abuts against the screen and pushes the screen to a designated position.

[0028] By adopting the above technical solution, when the screen is conveyed by the tape conveyor belt, the piston rod of the tape pushing cylinder drives the pushing block to move along the Y-axis. The movement of the pushing block slowly pushes the screen to the designated position, thereby making the tape application mechanism more accurate and ensuring that the tape application position is basically consistent.

[0029] In summary, this application includes at least one of the following beneficial technical effects:

[0030] 1. The backlight panel and the backlight feeding mechanism are conveyed to the first bonding plate and the backlight panel. The backlight panel has its protective film removed by the film peeling mechanism. The LCD screen is fed by the LCD screen feeding mechanism and conveyed to the second bonding plate and bonded to the backlight panel located on top of the second bonding plate. The backlight panel is conveyed by the first bonding plate toward the LCD screen feeding line. The bonded screen is conveyed by the second bonding plate toward the backlight panel assembly line. When the first bonding plate and the second bonding plate are conveyed, they pass by alternately, one above the other, in a cycle. The bonded screen is conveyed along the backlight panel assembly line to the tape attaching mechanism. When the tape attaching mechanism attaches the auxiliary film peeling tape to the top of the screen, the backlight panel and the LCD screen are assembled. The first bonding plate and the second bonding plate pass by alternately, one above the other, in a cycle.

[0031] This design allows for the simultaneous bonding of a backlight board and an LCD screen during the loading of a backlight board. Furthermore, when a bonded screen is transported to the bonding mechanism, a backlight board and an LCD screen are still being bonded. This results in higher utilization of the assembly time for the backlight board and LCD screen, leading to higher processing efficiency. It also addresses the issue of low efficiency in the backlight board bonding process, which previously required the backlight board to be transported to the LCD screen loading line and then back to complete the bonding before proceeding to the next backlight board and LCD screen.

[0032] 2. When the backlight panel is conveyed to the first or second bonding plate by the backlight panel feeding mechanism, the positioning component drives the piston rod of the lateral positioning cylinder to move the backlight panel along the X-axis and the piston rod of the longitudinal positioning cylinder to move the backlight panel along the Y-axis, thereby fixing the backlight panel in position on the first or second bonding plate, making the bonding of the backlight panel and the LCD screen simpler and more precise.

[0033] 3. The double-sided adhesive allows the LCD conveyor plate to transport two LCD screens simultaneously, while also reducing the ineffective transport stroke of the LCD conveyor plate. This increases the number of LCD screens that can be transported in the same stroke, making it more practical. Attached Figure Description

[0034] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application.

[0035] Figure 2 This is a schematic diagram of the structure of the horizontal transfer component and the horizontal transfer drive component in an embodiment of this application.

[0036] Figure 3 This is a schematic diagram of the bonding mechanism and the film-tearing mechanism in an embodiment of this application.

[0037] Figure 4 This is a schematic diagram of the structure of the liquid crystal feeding component in an embodiment of this application.

[0038] Figure 5 This is a schematic diagram of the structure of the liquid crystal horizontal transfer component in an embodiment of this application.

[0039] Figure 6 This is a schematic diagram of the tape-applying mechanism in an embodiment of this application.

[0040] Explanation of reference numerals in the attached drawings: 1. Backlight plate feeding mechanism; 11. Backlight plate feeding conveyor belt; 12. Feeding positioning block; 13. Optical sensor; 14. Horizontal transfer frame; 15. Horizontal transfer assembly; 151. Transfer suction cup assembly; 152. Vertical transfer cylinder; 153. Vertical transfer rod; 16. Horizontal transfer drive assembly; 161. Horizontal transfer screw; 162. Horizontal transfer block; 163. Transfer guide rod; 164. Transfer drive motor; 2. Bonding mechanism; 21. Bonding frame; 22. First bonding plate; 23. Second bonding plate; 24. First vertical drive cylinder; 25. First horizontal drive screw; 26. Second vertical drive cylinder; 27. Second horizontal drive screw; 28. Positioning assembly; 281. Lateral positioning cylinder; 282. Lateral positioning block; 283. Longitudinal positioning cylinder; 2 84. Longitudinal positioning block; 285. Lighting strip; 3. Film tearing mechanism; 31. Pneumatic adsorption block; 32. Film tearing motor; 33. Vertical moving rodless cylinder; 4. LCD screen feeding mechanism; 41. LCD feeding rack; 42. LCD feeding assembly; 421. LCD conveyor plate; 422. LCD rodless cylinder; 423. Double-sided adhesive tape; 424. Active tape roller; 425. Driven tape roller; 426. LCD drive motor; 43. LCD horizontal transfer assembly; 431. Longitudinal moving lead screw; 432. Lateral moving rodless cylinder; 433. Vertical transfer drive cylinder; 434. Transfer adsorption plate; 5. Tape application mechanism; 51. Tape application frame; 52. Tape application conveyor belt; 53. Tape application push cylinder; 54. Push block; 55. Tape roller; 56. Tape roll; 57. Glue roll roller; 58. Pressure block. Detailed Implementation

[0041] The following is in conjunction with the appendix Figure 1-6 This application will be described in further detail.

[0042] This application discloses an automated assembly device. (Refer to...) Figure 1An automatic assembly device includes an LCD screen feeding line and a backlight board production line. A tape-applying mechanism 5 and a film-removing mechanism 3 are fixedly arranged between the backlight board production line and the LCD screen feeding line. The LCD screen feeding line includes an LCD screen feeding mechanism 4, and the backlight board production line includes a backlight board feeding mechanism 1 and a tape-applying mechanism 5. In this embodiment, the conveying direction of the backlight board production line is selected as the X-axis direction, and the bonding mechanism 2 selects the Y-axis direction as the conveying direction of the backlight board towards the LCD screen feeding line.

[0043] Reference Figure 1 and Figure 2 The backlight board feeding mechanism 1 includes a backlight board feeding conveyor belt 11, a feeding positioning block 12, and a feeding sensor. The feeding direction of the backlight board feeding conveyor belt 11 is set along the X-axis. The feeding positioning block 12 is fixedly set at the free end of the backlight board feeding conveyor belt 11 and is used to prevent the backlight board from rushing out of the backlight board feeding conveyor belt 11 along the feeding direction of the backlight board feeding conveyor belt 11. In this embodiment, the feeding sensor is an optical sensor 13. The optical sensor 13 is fixedly set on one side of the backlight board feeding conveyor belt 11. The light emitted by the optical sensor 13 passes through the feeding positioning block 12 and approaches the side of the backlight board feeding conveyor belt 11. When the backlight board is conveyed by the backlight board feeding conveyor belt 11 to abut against the feeding positioning block 12, the backlight board blocks the light emitted by the optical sensor 13. The optical sensor 13 transmits a signal, and the backlight board feeding conveyor belt 11 stops conveying the backlight board.

[0044] Reference Figure 2The backlight board loading mechanism 1 also includes a horizontal transfer frame 14, a horizontal transfer assembly 15, and a horizontal transfer drive assembly 16. The horizontal transfer frame 14 is located at the free end of the backlight board loading conveyor belt 11 in the conveying direction. The horizontal transfer drive assembly 16 includes a horizontal transfer screw 161, a horizontal transfer block 162, a transfer guide rod 163, and a transfer drive motor 164. The transfer drive motor 164 is fixedly mounted on the horizontal transfer frame 14. The horizontal transfer screw 161 is rotatably connected to the horizontal transfer frame 14 along the X-axis and fixedly connected to the output shaft of the transfer drive motor 164. The horizontal transfer block 162 is threadedly connected to the horizontal transfer screw 161. The transfer guide rod 163 is fixedly mounted on the horizontal transfer frame 14 and passes through the water along the X-axis. The horizontal transfer block 162 and the transfer guide rod 163 are slidably engaged with the horizontal transfer block 162. The horizontal transfer assembly 15 includes a transfer suction cup group 151, a vertical transfer cylinder 152, and a vertical transfer rod 153. The cylinder body of the vertical transfer cylinder 152 is fixedly connected to one side of the horizontal transfer block 162. The vertical transfer rod 153 is fixedly connected to the piston rod of the vertical transfer cylinder 152. The vertical transfer rod 153 has a vertical transfer groove. The horizontal transfer block 162 passes through the vertical transfer groove and is slidably engaged with the vertical transfer groove. The vertical transfer rod 153 is directional and its length direction is along the X-axis direction. The transfer suction cup group 151 includes two transfer suction cup bodies, which are respectively fixedly connected to both sides of the vertical transfer rod 153 along its length direction.

[0045] Reference Figure 3 The bonding mechanism 2 includes a bonding frame 21, a first bonding plate 22, a second bonding plate 23, a first vertical drive member, a first horizontal drive member, a second vertical drive member, and a second horizontal drive member. In this embodiment, the first vertical drive member and the second vertical drive member respectively include a first vertical drive cylinder 24 and a second vertical drive cylinder 26. The first horizontal drive member and the second horizontal drive member respectively include a first horizontal drive screw 25 and a second horizontal drive screw 27. The first horizontal drive screw 25 and the second horizontal drive screw 27 are rotatably disposed on both sides of the bonding frame 21 in the X-axis direction, and the length directions of the first horizontal drive screw 25 and the second horizontal drive screw 27 are both arranged along the Y-axis direction. The first horizontal drive screw 25 and the second horizontal drive screw 27 are both driven by a motor.

[0046] Reference Figure 3The sliders of the first horizontal drive screw 25 and the second horizontal drive screw 27 are respectively slidably engaged with the bonding frame 21 and abut against the bonding frame 21. The cylinder bodies of the first vertical drive cylinder 24 and the second vertical drive cylinder 26 are respectively fixedly connected to the sliders of the first horizontal drive screw 25 and the second horizontal drive screw 27. The first bonding plate 22 and the second bonding plate 23 are respectively fixedly connected to the first vertical drive cylinder 24 and the second vertical drive cylinder 26. The first bonding plate 22 and the second bonding plate 23 overlap at the middle position. When the first horizontal drive screw 25 and the second horizontal drive screw 27 drive the first bonding plate 22 and the second bonding plate 23 to move towards each other, the piston rod of the first vertical drive cylinder 24 or the second vertical drive cylinder 26 drives the first bonding plate 22 or the second bonding plate 23 to move in the vertical direction, so that the height of the first bonding plate 22 or the second bonding plate 23 increases, thereby allowing the first bonding plate 22 and the second bonding plate 23 to pass through alternately up and down.

[0047] Reference Figure 3 The bonding mechanism 2 also includes a positioning assembly 28, which comprises two lateral positioning cylinders 281, two lateral positioning blocks 282, two longitudinal positioning cylinders 283, two longitudinal positioning blocks 284, and two lighting strips 285. The two lateral positioning cylinders 281 are respectively fixedly mounted on the first bonding plate 22 and the second bonding plate 23. The two lateral positioning blocks 282 are respectively fixedly connected to the piston rods of the two lateral positioning cylinders 281. When the two lateral positioning cylinders 281 are reset, they drive the backlight plate to move along the X-axis until the two lateral positioning blocks 282 abut against one side of the first bonding plate 22 and the second bonding plate 23 in the X-axis direction. The two longitudinal positioning cylinders 283 are fixedly mounted on the first bonding plate 22 and the second bonding plate 23. The two longitudinal positioning blocks 284 are respectively fixedly connected to the piston rods of the two longitudinal positioning cylinders 283. When the two longitudinal positioning cylinders 283 are reset, they drive the backlight panel to move along the Y-axis until the two longitudinal positioning blocks 284 respectively abut against one side of the first bonding plate 22 and the second bonding plate 23 in the Y-axis direction, thereby determining the position of the backlight panel on the first bonding plate 22 or the second bonding plate 23. The two lighting strips 285 are respectively fixedly set on the first bonding plate 22 and the second bonding plate 23. Both lighting strips 285 are along the X-axis and Y-axis directions, so that when the backlight panel is located on the first bonding plate 22 and the second bonding plate 23, the lighting strips 285 illuminate the sides of the backlight panel that abut against the piston rods of the transverse positioning cylinder 281 and the longitudinal positioning cylinder 283, respectively. The bonding frame 21 is fixedly equipped with a light sensor, which senses the light emitted by the lighting strip through the optical sensor, thereby making the positioning of the backlight panel simpler and more efficient.

[0048] Reference Figure 3The film-peeling mechanism 3 includes a pneumatic adsorption block 31, a film-peeling motor 32, and a vertically moving rodless cylinder 33. The vertically moving rodless cylinder 33 is fixedly mounted on the bonding frame 21 and its movement direction is set in the vertical direction. The film-peeling motor 32 is fixedly mounted on the slider of the vertically moving rodless cylinder 33. The pneumatic adsorption block 31 is fixedly mounted on the output shaft of the film-peeling motor 32 and located at the top of the bonding mechanism 2. The pneumatic adsorption block 31 adsorbs the protective film of the backlight panel by drawing air. A waste frame for collecting the peeled backlight panel protective film is fixedly mounted at the bottom of the bonding frame 21.

[0049] Reference Figure 4 The LCD screen loading mechanism 4 includes an LCD loading frame 41, an LCD feeding assembly 42, and an LCD horizontal transfer assembly 43. The LCD feeding assembly 42 includes an LCD conveying plate 421, an LCD rodless cylinder 422, a double-sided adhesive tape 423, an active adhesive tape roller 424, a driven adhesive tape roller 425, and an LCD drive motor 426. The LCD rodless cylinder 422 is fixedly mounted on the LCD loading frame 41. The LCD conveying plate 421 is fixedly mounted on the slider of the LCD rodless cylinder 422. The active adhesive tape roller 424 is rotatably mounted on the LCD loading frame 41 near the bonding mechanism 2. The LCD drive motor 426 is fixedly mounted on the LCD loading frame 41, and the output shaft of the LCD drive motor 426 is fixedly connected to the active adhesive tape roller 424. The driven adhesive tape roller 425 is rotatably connected to the end of the LCD loading frame 41 away from the bonding mechanism 2. The double-sided adhesive tape 423 is wound around the active tape roller 424 and the driven tape roller 425 and is located on top of the liquid crystal conveyor plate 421. There is a certain friction between the driven tape roller 425 and the liquid crystal loading rack 41. When the active tape roller 424 drives the driven tape roller 425 to rotate through the double-sided adhesive tape 423, the double-sided adhesive tape 423 is first in a taut state, and then drives the driven tape roller 425 to rotate together. When the double-sided adhesive tape 423 is in a taut state, there is a gap between the double-sided adhesive tape 423 and the liquid crystal conveyor plate 421, which causes the liquid crystal screen bonded to the double-sided adhesive tape 423 to separate from the liquid crystal conveyor plate 421. When the liquid crystal screen is bonded to the double-sided adhesive tape 423, the weight of the liquid crystal screen presses down the double-sided adhesive tape 423, so that the double-sided adhesive tape 423 is bonded to the liquid crystal conveyor plate 421.

[0050] Reference Figure 5 The liquid crystal horizontal transfer assembly 43 includes a longitudinal moving lead screw 431, a transverse moving rodless cylinder 432, a vertical transfer drive cylinder 433, and a transfer adsorption plate 434. The longitudinal moving lead screw 431 is rotatably mounted on the bonding frame 21 along the Y-axis and driven by a motor. The transverse moving rodless cylinder 432 is fixedly mounted on the slider of the longitudinal moving lead screw 431 along the X-axis. The vertical transfer cylinder 152 is fixedly mounted on the slider of the transverse moving rodless cylinder 432 along the vertical direction, and the piston rod of the vertical transfer cylinder 152 faces the bonding mechanism 2. The transfer adsorption plate 434 is fixedly mounted on the piston rod of the vertical transfer cylinder 152.

[0051] Reference Figure 4 and Figure 5 When the next LCD screen is bonded to the double-sided adhesive tape 423, the LCD transfer plate drives the two LCD screens to move towards the bonding mechanism 2 until one of the LCD screens is located at the bottom of the LCD horizontal transfer assembly 43. Driven by the horizontal moving rodless cylinder 432 and the vertical moving lead screw 431, the transfer adsorption plate 434 adsorbs and transfers the LCD screen to the top of the backlight panel. The piston rod of the vertical transfer drive cylinder 433 drives the transfer adsorption plate 434 to fix the LCD screen and the backlight panel. While the LCD horizontal transfer assembly 43 adsorbs the LCD screen, the LCD conveyor plate 421 resets for the next conveying. The double-sided adhesive tape 423 keeps the position of the LCD screen that has not been adsorbed unchanged when the LCD conveyor plate 421 resets.

[0052] Reference Figure 6 The tape application mechanism 5 includes a tape application frame 51, a tape application conveyor belt 52, a tape application pushing cylinder 53, a pushing block 54, a tape roller 55, a tape roll 56, a roll roller 57, and a pressing block 58. The tape application frame 51 is located on the backlight panel production line. The tape application conveyor belt is mounted on the tape application frame 51. The tape application pushing cylinder 53 is fixedly mounted on the top of the tape application conveyor belt 52 along the Y-axis direction, and the piston rod of the tape application pushing cylinder 53 is positioned towards the tape application conveyor belt 52. The pushing block 54 is fixedly connected to the piston rod of the tape application pushing cylinder 53. When the screen is located on the tape application conveyor belt 52, the pushing block 54 abuts against the screen and pushes the screen to the designated position. The tape roller 55 is rotatably connected to the tape application frame 51, and the tape roll 56 is fixedly connected to the tape roller 57. 5. The tape roll 57 is rotatably connected to the tape applicator 51 and one end is fixedly connected to the first tape applicator. The pressure block 58 is rotatably fitted to the tape applicator 51 and driven by the second tape applicator. In this embodiment, both the first tape applicator and the second tape applicator are motors. The tape of the tape roll 56 passes through the pressure block 58 and is located at the bottom of the pressure block 58. When the pressure block 58 applies adhesive to the screen, the screen is located at the bottom of the pressure block 58. The pressure block 58 rotates to press the tape of the tape roll 56 against the top of the screen. The tape is provided with easy-tear marks so that the adhesive tape can be separated from the tape roll 56 by tearing. The tape roller 55 rotates to roll up the protective layer of the tape that has lost its adhesive layer and drives the tape roll 56 to rotate.

[0053] The implementation principle of an automatic assembly device according to an embodiment of this application is as follows: the backlight panel is conveyed by the backlight panel feeding conveyor belt 11 to abut against the feeding positioning block 12. The backlight panel feeding conveyor belt 11 stops conveying, and the piston rod of the vertical transfer cylinder 152 drives the vertical transfer rod 153 to move towards the backlight panel feeding conveyor belt 11, so that the two transfer suction cups respectively adsorb the backlight panel on the backlight panel feeding conveyor belt 11 and the screen of the first bonding plate 22 or the second bonding plate 23. The conveying shaft of the transfer drive motor 164 drives the horizontal transfer screw 161 to rotate, so that the horizontal transfer block 162 moves away from the backlight panel feeding conveyor belt 11 along the X-axis until the backlight panel and screen adsorbed by the two transfer suction cups are respectively located at the top of the first bonding plate 22 or the second bonding plate 23 and the tape conveyor belt 52. The two transfer suction cups simultaneously release the adsorption of the backlight panel and the screen, so that the backlight panel and the screen fall onto the bonding mechanism 2 and the tape attaching mechanism 5 respectively.

[0054] Assuming the backlight panel falls onto the first bonding plate 22, the backlight panel moves towards the LCD screen loading line via the first bonding plate 22 until it reaches the film-peeling mechanism 3. The slider of the vertically moving rodless cylinder 33 drives the film-peeling motor 32 to move towards the backlight panel. The output shaft of the film-peeling motor 32 drives the pneumatic suction block 31 to adsorb the protective film on the top of the backlight panel. The film-peeling motor 32 resets, and the pneumatic suction block 31 separates the protective film from the top of the backlight panel. The vertically moving rodless cylinder 33 moves away from the backlight panel. At the same time, the first bonding plate 22 continues to drive the backlight panel towards the LCD screen loading line, and the bonded screen moves towards the backlight panel assembly line via the second bonding plate 23. When the first bonding plate 22 and the second bonding plate 23 move towards each other, the piston rod of the second vertical drive cylinder 26 drives the second bonding plate 23 to rise in height, so that the second bonding plate 23 and the first bonding plate 22 pass by each other vertically without interfering with each other.

[0055] The LCD screen is fed by the LCD screen feeding mechanism 4, and at the same time, the LCD horizontal transfer component 43 moves the LCD screen adsorbed by the transfer adsorption plate 434 to the top of the backlight panel. Finally, the piston rod of the vertical drive cylinder drives the screen to be bonded to the backlight panel to form the screen.

[0056] The screen after bonding is conveyed to the tape bonding mechanism 5. The piston rod of the tape pushing cylinder 53 drives the pushing block 54 to push the screen to the designated position, so that the screen conveyed by the tape bonding conveyor belt 52 is in the same Y-axis position. The tape bonding conveyor belt 52 conveys the screen to the bottom of the pressure block 58, so that the tape is bonded to the top of the screen, and the bonding process of the backlight panel and the LCD screen is completed.

[0057] When a backlight board is being loaded, one backlight board and one LCD screen are bonded together. When a bonded screen is conveyed to the bonding mechanism 5, one backlight board and one LCD screen are being bonded together. This makes the assembly time utilization of the backlight board and LCD screen more efficient and improves the processing efficiency. It also improves the problem that when bonding the backlight board and the LCD screen, the backlight board needs to be conveyed to the LCD screen loading line and then back to complete the bonding of the backlight board before the next backlight board and LCD screen are bonded together. This process is inefficient and leads to low production efficiency in backlight board assembly.

[0058] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. An automatic assembly device, characterized in that: The system includes a backlight board loading mechanism (1), an LCD screen loading mechanism (4), a film peeling mechanism (3), a bonding mechanism (2), and a tape attaching mechanism (5). The backlight board loading mechanism (1) and the tape attaching mechanism (5) are located on the backlight board production line. The LCD screen loading mechanism (4) is located on the LCD screen loading line. The film peeling mechanism (3) is located between the backlight board production line and the LCD screen loading line. One end of the bonding mechanism (2) is on the LCD screen loading line, and the other end is on the backlight board production line. The backlight board loading mechanism (1) is used for loading the backlight board and conveying the backlight board to the film peeling mechanism (3). The LCD screen loading mechanism (4) is used for loading the LCD screen and conveying the LCD screen to the bonding mechanism (2). The film peeling mechanism (3) is used to peel off the protective film from the bonding surface of the backlight board and the LCD screen. The tape attaching mechanism (5) is used to attach auxiliary film peeling tape to the surface of the LCD screen. The bonding mechanism (2) includes a bonding frame (21), a first bonding plate (22), a second bonding plate (23), a first vertical drive member, a first horizontal drive member, a second vertical drive member, and a second horizontal drive member. The first bonding plate (22) and the second bonding plate (23) are slidably fitted onto the bonding frame (21). The first vertical drive member and the second vertical drive member are used to drive the first bonding plate (22) and the second bonding plate (23) to move vertically. The first horizontal drive member and the second horizontal drive member are used to drive the first bonding plate (22) and the second bonding plate (23) to move vertically. The two bonding plates (23) move along the Y-axis. The first bonding plate (22) and the second bonding plate (23) are used to transport the backlight and the screen after bonding. When the first bonding plate (22) is driven by the first vertical drive and the first horizontal drive to transport the backlight to the LCD screen production line, the second bonding plate (23) is driven by the second vertical drive to reset and the second horizontal drive to transport the screen after bonding to the backlight assembly line. When the backlight and the screen after bonding are transported, the first bonding plate (22) and the second bonding plate (23) pass through each other vertically. The backlight board loading mechanism (1) includes a horizontal transfer assembly (15) and a horizontal transfer drive assembly (16). The horizontal transfer assembly (15) includes a transfer suction cup group (151) and a vertical transfer cylinder (152). The horizontal transfer drive assembly (16) is used to drive the vertical transfer cylinder (152) to move along the X-axis. The transfer suction cup group (151) is fixedly set on the piston rod of the vertical transfer cylinder (152). The transfer suction cup group (151) includes two transfer suction cup bodies. When one of the transfer suction cup bodies adsorbs the backlight board and transports the backlight board to the bonding mechanism (2), the other transfer suction cup body adsorbs the screen after bonding and transports the screen to the tape bonding mechanism (5).

2. The automatic assembly equipment according to claim 1, characterized in that: The first bonding plate (22) and the second bonding plate (23) are both fixedly provided with positioning components (28). The positioning components (28) include a horizontal positioning cylinder (281) and a vertical positioning cylinder (283). The horizontal positioning cylinder (281) pushes the backlight plate to a designated position along the X-axis, and the vertical positioning cylinder (283) pushes the backlight plate to a designated position along the Y-axis.

3. The automatic assembly equipment according to claim 2, characterized in that: The first bonding plate (22) and the second bonding plate (23) are fixedly provided with lighting strips (285). When the backlight is located on the first bonding plate (22) and the second bonding plate (23), the lighting strips (285) illuminate the sides of the backlight that are in contact with the piston rods of the transverse positioning cylinder (281) and the longitudinal positioning cylinder (283), respectively. The bonding frame (21) is fixedly provided with a light sensor for sensing the light of the lighting strips (285).

4. The automatic assembly equipment according to claim 1, characterized in that: The backlight board feeding mechanism (1) also includes a backlight board feeding conveyor belt (11), a feeding positioning block (12), and a sensor. The backlight board feeding conveyor belt (11) is arranged along the X-axis direction. The feeding positioning block (12) is fixedly arranged at the free end of the backlight board feeding conveyor belt (11). The sensor is fixedly arranged on one side of the backlight board feeding conveyor belt (11). When the backlight board feeding conveyor belt (11) feeds the backlight board to abut against the feeding positioning block (12), the feeding sensor transmits the position signal of the backlight board to the backlight board feeding conveyor belt (11). The backlight board feeding conveyor belt (11) stops feeding when it receives the signal.

5. An automatic assembly device according to claim 1, characterized in that: The backlight board loading mechanism (1) further includes a horizontal transfer frame (14). The horizontal transfer drive assembly (16) includes a horizontal transfer screw (161), a horizontal transfer block (162), a transfer guide rod (163), and a transfer drive motor (164). The transfer drive motor (164) is fixedly mounted on the horizontal transfer frame (14). The horizontal transfer screw (161) is rotatably connected to the horizontal transfer frame (14) along the X-axis and is fixedly connected to the output shaft of the transfer drive motor (164). The horizontal transfer block (162) is threadedly connected to the horizontal transfer screw (161). The transfer guide rod (163) is fixedly mounted on the horizontal transfer frame (14) and passes through the horizontal transfer block (162) along the X-axis. The transfer guide rod (163) and the horizontal transfer block (162) are slidably engaged. The horizontal transfer block (162) is fixedly connected to the cylinder body of the vertical transfer cylinder (152).

6. An automatic assembly device according to claim 1, characterized in that: The LCD screen loading mechanism (4) includes an LCD loading rack (41), an LCD feeding assembly (42), and an LCD horizontal transfer assembly (43). The LCD feeding assembly (42) includes an LCD conveyor plate (421), an LCD rodless cylinder (422), a double-sided adhesive tape (423), an active tape roller (424), a driven tape roller (425), and an LCD drive motor (426). The LCD rodless cylinder (422) is fixedly mounted on the LCD loading rack (41), and the LCD conveyor plate (421) is fixedly mounted on the LCD loading rack (41). The slider is placed in the liquid crystal rodless cylinder (422). The active tape roller (424) is rotatably mounted on the liquid crystal loading rack (41) near the bonding mechanism (2). The liquid crystal drive motor (426) is fixedly mounted on the liquid crystal loading rack (41), and the output shaft of the liquid crystal drive motor (426) is fixedly connected to the active tape roller (424). The driven tape roller (425) is rotatably connected to the end of the liquid crystal loading rack (41) away from the bonding mechanism (2). The double-sided adhesive tape (423) is wound around the active tape roller (424). 24) and the driven tape roller (425) are located on top of the liquid crystal conveyor plate (421). When the driven tape roller drives the driven tape roller to rotate through the double-sided adhesive tape, the double-sided adhesive tape is taut. When the double-sided adhesive tape (423) is in a taut state, there is a gap between the double-sided adhesive tape (423) and the liquid crystal conveyor plate (421). The liquid crystal horizontal transfer assembly (43) is used to transfer the liquid crystal screen from the liquid crystal screen loading mechanism (4) to the backlight plate. The next liquid crystal screen is bonded to the double-sided adhesive tape (425). When 423), the liquid crystal transfer plate drives the two liquid crystal screens to move towards the bonding mechanism (2) until one of the liquid crystal screens is located at the bottom of the liquid crystal horizontal transfer assembly (43). At the same time that the liquid crystal horizontal transfer assembly (43) adsorbs the liquid crystal screen, the active tape roller (424) rotates to make the double-sided adhesive tape (423) taut. The liquid crystal conveying plate (421) resets for the next conveying. The double-sided adhesive tape (423) keeps the position of the liquid crystal screen that has not been adsorbed unchanged when the liquid crystal conveying plate (421) is reset.

7. An automatic assembly device according to claim 1, characterized in that: The film-peeling mechanism (3) includes a pneumatic adsorption block (31), a film-peeling motor (32), and a vertically moving rodless cylinder (33). The vertically moving rodless cylinder (33) is fixedly mounted on the bonding frame (21). The film-peeling motor (32) is fixedly mounted on the slider of the vertically moving rodless cylinder (33). The pneumatic adsorption block (31) is fixedly mounted on the output shaft of the film-peeling motor (32) and located at the top of the bonding mechanism (2). When the first bonding plate (22) or the second bonding plate (23) conveys the backlight panel to the LCD screen loading line, the output shaft of the film-peeling motor (32) drives the pneumatic adsorption block (31) to peel off the protective film on the surface of the backlight panel.

8. An automatic assembly device according to claim 1, characterized in that: The tape application mechanism (5) includes a tape application frame (51), a tape application conveyor belt (52), a tape roller (55), a tape roll (56), a roll roller (57), and a pressure block (58). The tape application conveyor belt is mounted on the tape application frame (51) and is used to transport the screen. The tape roller (55) is rotatably connected to the tape application frame (51). The tape roll (56) is fixedly connected to the tape roller (55). The roll roller (57) is rotatably connected to the tape application frame (51) and one end is connected to the first tape application block. Driven by a drive component, the pressure block (58) rotates on one side and is fitted with the tape applicator (51) and driven by a second tape applicator. The tape roll (56) is laid at the bottom of the pressure block (58). The tape roll (56) has easy-tear marks. When the pressure block (58) applies adhesive to the screen, the screen is located at the bottom of the pressure block (58). The pressure block (58) rotates to press the tape roll (56) against the top of the screen.

9. An automatic assembly device according to claim 1, characterized in that: The tape application mechanism (5) further includes a tape application pushing cylinder (53) and a pushing block (54). The tape application pushing cylinder (53) is fixedly installed on the top of the tape application conveyor belt (52). The pushing block (54) is fixedly connected to the piston rod of the tape application pushing cylinder (53). When the screen is located on the tape application conveyor belt (52), the pushing block (54) abuts against the screen and pushes the screen to the designated position.

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