Full-automatic backlight assembly machine for mobile phone screen processing and operation method of full-automatic backlight assembly machine

Abstract

The invention relates to the technical field of backlight assembling machines, and discloses a full-automatic backlight assembling machine for mobile phone screen processing and an operation method thereof.The full-automatic backlight assembling machine for mobile phone screen processing comprises a mounting base, a moving plate is movably arranged on one side of the mounting base, a carrying table is fixedly connected to the top of a connecting rod, and an unwinding roller is rotationally connected to one side of the mounting base. The linear driving mechanism drives the driving roller to rotate and the carrying table to linearly move, the driving roller rotates and pulls the adhesive tape to drive the liquid crystal module to move, the carrying table and the liquid crystal module move synchronously, and in the moving process, the carrying table drives the adjusting block to move; the adjusting block is matched with the moving block, the adjusting rod and the sliding plug to suck the connecting cavity to form a full space when the carrying table is in an acceleration stage stroke under the guiding effect of the adjusting plate, so that the carrying table additionally provides negative pressure fixation for the liquid crystal module, the liquid crystal module can accelerate and decelerate at a higher acceleration, position deviation of the liquid crystal module due to inertia is avoided, and the service life of the liquid crystal module is prolonged. And the assembling rhythm of the backlight assembling machine is improved.

Description

Technical Field

[0001] The present application relates to the technical field of backlight assembly machines, and in particular to a fully automatic backlight assembly machine for processing mobile phone screens and an operating method thereof. Background Art

[0002] In the production and processing of mobile phone screens, a backlight assembly machine is required to assemble the backlight module and the liquid crystal module. The existing backlight assembly machine includes a backlight feeding mechanism and a liquid crystal feeding mechanism. The backlight feeding mechanism and the liquid crystal feeding mechanism respectively send the backlight module and the liquid crystal module to the buffer area, and then send the backlight module and the liquid crystal module to the film tearing station through a robotic arm. The protective film of the liquid crystal module is located at the bottom, and a tape film tearing device is usually used to tear the film. The liquid crystal module is directly transported to the bonding station by a robotic arm to tear off the protective film on the upper surface through a clamp, and then the robotic arm is used to transport the liquid crystal module after the film is torn to the bonding station for bonding and assembly.

[0003] During the film tearing process of the LCD module, there are usually two LCD modules on the carrier at the same time. The linear drive mechanism drives the carrier to move. At the same time, the recovery wheel of the tape is actively driven by the servo motor to drive the LCD module on the tape to move. Due to the guidance of the front end of the carrier's travel direction, the tape drives the LCD module in the same direction as the carrier, until one of the LCD modules in the front and the carrier move to the unloading position. At this time, the robotic arm fixes the LCD module through the suction cup device, and the carrier returns to its original position. The carrier cooperates with the moving roller at the bottom to synchronously take away the tape under the LCD module grasped by the robotic arm, completing the film tearing of a single LCD module. The other LCD module is positioned by the tape, and the carrier moves relative to the LCD module until it is reset, waiting for the next LCD module to be loaded from the buffer area, thereby completing the flow film tearing operation through a cyclic action.

[0004] However, in the existing backlight assembly machines, when the tape LCD module moves to the unloading position and stops slowing down, the LCD module is easily affected by its own inertia and easily moves relative to the tape, resulting in the phenomenon that the LCD module continues to slide forward after the tape stops moving. In addition, the unloading position of the LCD module is usually a protruding part of the LCD module carrier, so that the tape sticks to the protective film of the protruding part, which is convenient for the subsequent film tearing action, making the inertial deviation of the LCD module more likely to occur, resulting in the positioning deviation of the LCD module, which directly affects the subsequent fitting accuracy of the backlight module and the LCD module. Since the beat duration of the film tearing action is usually the longest part in the work flow of the backlight assembly machine, reducing the linear speed of the tape will cause the overall beat speed of the backlight assembly machine to slow down, affecting the efficiency of mobile phone screen production. In addition, the quality of LCD modules of different specifications is different, and it is difficult to unify the speed regulation. Summary of the invention

[0005] The present application proposes a fully automatic backlight assembly machine for mobile phone screen processing and an operation method thereof, which has the advantages of improving the film tearing rhythm of the liquid crystal module and ensuring the stability of the film tearing, and is used to solve the problem that the liquid crystal module is easily offset from the positioning position under the action of inertia.

[0006] To achieve the above-mentioned purpose, the present application adopts the following technical scheme: a fully automatic backlight assembly machine for processing mobile phone screens, comprising a mounting seat, a movable plate is movably provided on one side of the mounting seat, a carrier is fixedly connected to the top of the connecting rod, a reel is rotatably connected to one side of the mounting seat, an adhesive tape is provided outside the reel, an active roller is rotatably connected to the other side of the bottom of the mounting seat, a linear drive mechanism is fixedly provided on one side of the back side of the mounting seat, an adjustment cylinder is fixedly connected to one side of the bottom of the carrier, a plurality of through holes distributed in a rectangular shape are provided on the top of the carrier, a sliding plug is slidably sleeved in the adjusting cylinder, a connecting cavity is provided inside the carrier, and connecting holes for connecting the adjusting cylinder and the connecting cavity are provided in both the carrier and the adjusting cylinder; The mounting seat is provided with an adjustment mechanism, and the adjustment mechanism can cooperate with the linear drive mechanism and the tape to drive the carrier and the liquid crystal module to move synchronously. The adjustment mechanism can drive the sliding plug to rise and fall relative to the adjustment cylinder according to the position of the carrier, and cooperate with the through hole, the connecting cavity and the connecting hole to adjust the negative pressure at the bottom of the liquid crystal module according to the position of the carrier, and change the fixed state of the bottom of the liquid crystal module and the carrier. The adjustment mechanism can adjust the acceleration size and acceleration state of the carrier and the liquid crystal module according to the fixed state and position of the liquid crystal module and the carrier. When negative pressure is formed at the bottom of the liquid crystal module and is in the acceleration stroke stage, the adjustment mechanism drives the carrier and the liquid crystal module to accelerate and increase the acceleration. When the liquid crystal module is in the acceleration stroke stage, the adjustment mechanism first drives the liquid crystal module and the carrier to decelerate and then removes the negative pressure.

[0007] The beneficial effects of the present invention are as follows: The present application provides a fully automatic backlight assembly machine for processing mobile phone screens and an operation method thereof. An adjustment mechanism cooperates with a linear drive mechanism to enable the linear drive mechanism to drive the active roller to rotate and the carrier to move. The active roller pulls the tape while avoiding an increase in radius due to winding the tape, so that the linear speed of the tape is consistent with the speed of the carrier, thereby driving the liquid crystal module and the carrier to move synchronously. During the movement of the carrier, the adjustment mechanism drives the sliding plug to suck the connecting cavity to form a negative pressure during the acceleration stage of the carrier, so that the liquid crystal module is fixed on the top surface of the carrier while remaining relatively still with the carrier, providing additional fixation, so that the subsequent acceleration and deceleration can be carried out with greater acceleration while avoiding position displacement of the liquid crystal module due to inertia, thereby achieving the effect of improving the assembly rhythm. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art are briefly introduced below. Obviously, the drawings in the following description are only embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on the provided drawings without creative work: Figure 1 It is a front schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the back side of the overall structure of the present invention; Figure 3 It is a schematic diagram of the layout of the adhesive tape of the present invention; Figure 4 This is a schematic diagram of the structure of the active roller of the present invention; Figure 5 It is a schematic diagram of the transmission structure of the present invention; Figure 6 It is a schematic cross-sectional view of the structure of the connecting cavity of the present invention; Figure 7 It is a schematic cross-sectional view of the structure of the regulating cylinder of the present invention; Figure 8 This is a schematic diagram of the coordination between the adjustment block and the adjustment plate of the present invention; Fig. 9 It is a schematic cross-sectional view of the structure of the regulating block of the present invention; Fig.10 This is a schematic diagram of the structure of the adjustment block of the present invention.

[0009] In the figure: 1-mounting seat, 2-carrier, 3-moving plate, 4-active roller, 5-adjusting block, 501-sliding part, 502-contracting part, 503-lifting part, 6-adjusting plate, 601-plate body, 602-guide part No. 1, 603-guide part No. 2, 7-connecting seat, 8-tightening roller, 9-tightening cylinder, 10-adjusting roller, 11-tape, 12-moving roller No. 1, 13-liquid crystal module, 14-moving roller No. 2, 15-unwinding roller, 16-winding roller, 17-guide roller, 18-active gear, 19-passive gear, 20-gear set, 21-position sensor, 22-linear drive mechanism, 23-tooth plate No. 1, 24-tensioning motor No. 1, 25-tensioning motor No. 2, 26-tensioning spring, 27-coupler No. 1, 28-adjusting cylinder, 29-tooth plate No. 2, 30-coupler No. 2, 31-coupler No. 3, 32-transmission gear, 33-brake motor, 34-connecting rod, 35-connecting cavity, 36-connecting hole, 37-adjusting spring, 38-moving block, 39-sliding plug, 40-adjusting rod, 41-telescopic spring, 42-through hole. DETAILED DESCRIPTION

[0010] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0011] Embodiment 1, as Figure 1-Figure 3 , Figure 5 A fully automatic backlight assembly machine for processing a mobile phone screen comprises a mounting seat 1, which is arranged at a film tearing station of a liquid crystal module 13 of the backlight assembly machine, and a movable plate 3 is movably arranged on one side of the front of the mounting seat 1. Figure 5 , one side of the movable plate 3 is fixedly connected with a connecting rod 34, the connecting rod 34 is slidably sleeved with the mounting seat 1, the top of the connecting rod 34 is fixedly connected with a carrier 2, the carrier 2 is used to carry the liquid crystal module 13 and tear the film by reciprocating movement with the adhesive tape 11, one side of the bottom of the mounting seat 1 is rotatably connected with a winding roller 16, the other side of the bottom of the mounting seat 1 is rotatably connected with an active roller 4, one side of the mounting seat 1 is rotatably connected with an unwinding roller 15, the outer side of the unwinding roller 15 is wound with an adhesive tape 11, the adhesive tape 11 passes through the top surface of the carrier 2 and the active roller 4 and is pulled to the winding roller 16, see Figure 2 A second tensioning motor 25 is fixedly arranged on one side of the bottom of the mounting seat 1, and a first tensioning motor 24 is fixedly arranged on one side of the mounting seat 1. The active roller 4 is used to rotate and drive the belt body of the adhesive tape 11 to move, thereby controlling the linear speed of the adhesive tape 11.

[0012] The output end of the No. 1 tensioning motor 24 is connected to the unwinding roller 15 through a rotating shaft, and the output end of the No. 2 tensioning motor 25 is connected to the winding roller 16 through a rotating shaft. The No. 1 tensioning motor 24 is preferably a servo motor, which is used to control the tension of the tape 11 between the unwinding roller 15 and the active roller 4 during the unwinding process. The No. 2 tensioning motor 25 is preferably a torque motor, which is used to control the tension of the tape 11 between the active roller 4 and the winding roller 16 during the traction of the tape 11. An adjusting roller 10 is movably arranged at the bottom position of the front side of the mounting seat 1. The adjusting roller 10 is rotatably arranged on the roller seat, and the roller seat is slidably connected to the mounting seat 1. Next, a tensioning spring 26 is fixedly connected to the bottom of the mounting seat 1. The tensioning spring 26 is fixedly connected to the roller seat of the adjusting roller 10. The roller seat cooperates with the adjusting roller 10 to slide relative to the mounting seat 1 without leaving the mounting seat 1. The tensioning spring 26 is used to push the adjusting roller 10 so that the adjusting roller 10 presses against the tape 11 between the active roller 4 and the winding roller 16. When the speed of the active roller 4 increases, the tension of the tape 11 is ensured, and the winding roller 16 is driven by the torque motor to tension the tape 11, so as to avoid the sudden relaxation of the tape 11 in the speed change state, which causes the tape 11 to stack on each other, thereby ensuring the stability of the traction process of the tape 11.

[0013] The front side of the mounting seat 1 is rotatably connected with a guide roller 17, and the number of guide rollers 17 is set to be several. One side of the moving plate 3 is rotatably connected with a No. 1 moving roller 12, and the other side of the moving plate 3 is rotatably connected with a No. 2 moving roller 14. The No. 1 moving roller 12 is used to provide guidance for the traction of the adhesive tape 11 when the moving plate 2 moves, so as to ensure the stability of the film tearing process. The bottom height of the No. 2 moving roller 14 is consistent with the height of the top of one of the several guide rollers 17. The top surface of the carrier 2 is provided with a groove for the adhesive tape 11, and the height of the groove is consistent with the height of the top of one of the several guide rollers 17. After the loading of group 13 is completed, there are two liquid crystal modules 13 on the carrier, and the movable plate 3 and the carrier 2 move to one side of the mounting seat 1. At this time, the distance between the second movable roller 14 and the guide roller 17 corresponding to the horizontal height is reduced, and the carrier 2 is away from the guide roller 17 corresponding to the height, and the distance between the tape 11 increases. The active roller 4 actively rotates to pull the tape 11, and the linear speed of the tape 11 is equal to the linear speed of the active roller 4. Since the winding roller 16 is wound, the thickness of the roller body plus the rewound tape 11 increases as the winding proceeds, which leads to an increase in the roller radius when the angular velocity remains unchanged, resulting in an increase in the linear speed, thereby affecting the traction rate of the tape 11.

[0014] During the traction of the adhesive tape 11, the protective film is driven to move together with the liquid crystal module 13, and the moving direction of the liquid crystal module 13 is consistent with the moving direction of the carrier 2, until the carrier 2 moves to the unloading position and stops. At this time, the adhesive tape 11 continues to drive the liquid crystal module 13 to move, so that the liquid crystal module 13 continues to move relative to the carrier 2, until one of the two liquid crystal modules 13 moves to partially protrude from the edge of the carrier 2, and under the guidance of the No. 1 moving roller 12, the adhesive tape 11 tears off part of the protective film to facilitate subsequent film tearing, and the speed of the active roller 4 pulling the adhesive tape 11 is first increased and then decreased, increasing the speed of the process in which the carrier 2 and the adhesive tape 11 move together, and decelerating the liquid crystal module 13 to the rated speed at the rated position through the adhesive tape 11, cooperating with the adjusting roller 10 and the winding roller 16, while ensuring the stability of the traction of the adhesive tape 11, increasing the speed of the liquid crystal module 13 moving to the unloading position, and decelerating the liquid crystal module 13 at the rated speed, thereby improving the rhythm of film tearing of the liquid crystal module 13.

[0015] After the liquid crystal module 13 reaches the unloading position, the robot arm sucks the liquid crystal module 13 through the suction cup mechanism, the moving seat 3 moves to drive the carrier 2 to reset, the No. 1 moving roller 12 moves relative to the liquid crystal module 13, the No. 2 moving roller 14 cooperates with the guide roller 17 of the corresponding height, and the carrier 2 cooperates with the guide roller 17 of the corresponding height, so that the protective film at the bottom of the liquid crystal module 13 fixed by the robot arm moves with the carrier 2 and is torn off by the tape 11 along the edge of the carrier 2 under the guiding action of the No. 1 moving roller 12, completing the film tearing, a clamping roller 8 is rotatably provided on one side of the mounting seat 1, and the clamping roller 8 is rotatably provided on the corresponding roller seat, a clamping cylinder 9 is fixedly provided on one side of the mounting seat 1, and the output end of the clamping cylinder 9 is fixedly connected to the roller seat corresponding to the clamping roller 8, and the clamping cylinder 9 pushes the clamping roller 8 to clamp the active roller 4, and the active roller 4 cooperates with the clamping roller 8 to ensure the stability of the active roller 4 pulling the tape 11.

[0016] See also Figure 1-Figure 5 A linear drive mechanism 22 is fixedly arranged on one side of the back of the mounting seat 1. The linear drive mechanism 22 is preferably an electric push rod. The linear drive mechanism 22 can also be set as a linear motor, a hydraulic push rod and a cylinder. The output end of the electric push rod is fixedly connected to a No. 1 gear plate 23, and the No. 1 gear plate 23 is located at the bottom of the electric push rod. A transmission gear 32 is rotatably connected to the back of the mounting seat 1 at the top. A driving gear 18 is rotatably arranged at the back of the mounting seat 1 at the top. A brake motor 33 is fixedly connected to the front of the mounting seat 1 at the top. A No. 3 coupler 31 is arranged between the brake motor 33 and the transmission gear 32, and a No. 2 coupler 30 is arranged between the driving gear 18 and the transmission gear 32. A passive gear 19 is rotatably provided on one side of the back side of the mounting seat 1 near the bottom, a No. 1 coupler 27 is provided between the passive gear 19 and the active roller 4, the No. 1 coupler 27, the No. 2 coupler 30 and the No. 3 coupler 31 are all fixedly connected to the mounting seat 1, the No. 1 coupler 27, the No. 2 coupler 30 and the No. 3 coupler 31 can all be set as electromagnetic clutches, a No. 2 tooth plate 29 is slidably connected to the top position of the mounting seat 1, the No. 1 tooth plate 23 is meshed with the active gear 18, the No. 2 tooth plate 29 is meshed with the transmission gear 32, a gear set 20 is provided on one side of the back side of the mounting seat 1, and the active gear 18 is transmission-connected to the passive gear 19 through the gear set 20.

[0017] When the liquid crystal module 13 moves to the lower feeding position, the electric push rod extends and cooperates with the No. 1 toothed plate 23 to drive the active gear 18 to rotate, and the active gear 18 cooperates with the No. 2 coupler 30 to drive the transmission gear 32 to rotate, and the transmission gear 32 rotates to drive the No. 2 toothed plate 29 to move. At this time, the No. 3 coupler 31 is in a separated state, and the No. 2 toothed plate 29 is fixedly connected to the connecting rod 34, thereby driving the connecting rod 34 to move, and the connecting rod 34 drives the moving plate 3 to move. At the same time, the active gear 18 cooperates with the gear set 20 to drive the passive gear 19 to rotate, and the passive gear 19 cooperates with the No. 1 coupler 27 to drive the active roller 4 to rotate, and the active roller 4 rotates to traction The moving direction of the belt 11 is adapted to the moving direction of the moving plate 3, and the linear speed of the belt 11 is equal to the moving speed of the carrier 2, so that the liquid crystal module 13 and the carrier 2 move synchronously. At the same time, due to the active roller 4 will not rewind the tape 11, that is, its radius remains unchanged, so that during the operation of the backlight assembly machine, the linear drive mechanism 22 can always drive and drive the active roller 4 to rotate at the rated linear speed, thereby ensuring the synchronization of the liquid crystal module 13 and the carrier 2, so that the carrier 2 can move synchronously with the liquid crystal module 13 and additionally fix the liquid crystal module 13. The linear drive mechanism 22 drives the No. 1 tooth plate 23 to move at an increased speed first and then decreased speed. When the speed of the carrier 2 and the liquid crystal module 13 decreases, the No. 2 coupler 30 is separated, the No. 3 coupler 31 is engaged, the brake motor 33 controls the carrier 2 to stop moving, the No. 1 tooth plate 23 continues to decelerate and drive the active roller 4 to decelerate, and when the carrier 2 is reset, the No. 1 coupler 27 is separated, the No. 2 coupler 30 and the No. 3 coupler 31 are engaged, and the No. 1 tooth plate 23 drives and drives the carrier 2 to move.

[0018] See also Figure 1 , Figure 3 , Figure 5-Figure 10 An adjusting cylinder 28 is fixedly connected to one side of the bottom of the carrier 2, and a sliding plug 39 is slidably sleeved in the adjusting cylinder 28. The sliding plug 39 separates the cavity of the adjusting cylinder 28, and the cavity at the bottom of the adjusting cylinder 28 is connected to the air outside the adjusting cylinder 28. A connecting cavity 35 is opened inside the carrier 2, and the number of the connecting cavities 35 corresponds to the number of the liquid crystal modules 13. A through hole 42 is opened on the top of the carrier 2, and the number of the through holes 42 is set to be several. The several through holes 42 are divided into two groups and distributed in a rectangular shape and correspond to the two connecting cavities 35 respectively. The through holes 42 and the corresponding connecting cavities 35 is connected, a connecting hole 36 for connecting the adjusting cylinder 28 and the connecting cavity 35 is opened in the carrier 2 and the adjusting cylinder 28, an adjusting rod 40 is fixedly connected to the bottom of the sliding plug 39, a moving block 38 is fixedly connected to the bottom of the adjusting rod 40, a connecting seat 7 is fixedly connected to one side of the top of the mounting seat 1, an adjusting plate 6 is fixedly connected to one side of the connecting seat 7, an adjusting block 5 is slidably connected to the inner side of the moving block 38, and the adjusting block 5 cooperates with the adjusting plate 6 to drive the moving block 38 to rise and fall during the synchronous movement of the carrier 2 and the liquid crystal module 13, and the carrier 2 drives the adjusting cylinder 28 to move.

[0019] Specifically, the number of the adjustment plate 6 and the adjustment block 5 is set to two, the adjustment block 5 includes a sliding portion 501, the sliding portion 501 is T-shaped and can be telescopically moved relative to the moving block 38 without leaving the moving block 38, and the sliding portion 501 is located on one side of the vertical surface outside the moving block 38 and is set to an arc-shaped contraction portion 502. The adjustment plate 6 includes a plate body 601, and the plate body 601 is horizontally arranged. Figure 5 One side of the vertical surface of the plate body 601 is set to be an inclined surface to set a No. 1 guide part 602, and the No. 1 guide part 602 is adapted to the contraction part 502. When the carrier 2 is reset, the No. 1 guide part 602 presses against the contraction part 502 to push the contraction part 502 to retract into the moving block 38. One side of the top surface of the sliding part 501 is set to an arc-shaped lifting part 503, and one side of the plate body 601 is set to be a No. 2 guide part 603 adapted to the lifting part 503. The bottom of the No. 2 guide part 603 is an inclined surface. An adjusting spring 37 is movably provided in the adjusting cylinder 28, and a telescopic spring 41 is movably sleeved in the moving block 38. A position sensor 21 is fixedly provided on one side of the mounting seat 1. The controller controls the speed of the linear drive mechanism 22 according to the position of the No. 1 tooth plate 23 detected by the position sensor 21, so as to form a closed-loop control to ensure the accuracy of the start time of the acceleration process and the deceleration process.

[0020] When the adhesive tape 11 drives the liquid crystal module 13 to move synchronously with the carrier 2, the lifting part 503 contacts the corresponding No. 2 guide part 603, and the No. 2 guide part 603 pushes the lifting part 503 to move downward, and the adjustment block 5 drives the moving block 38 to move downward relative to the carrier 2, and the moving block 38 drives the adjustment rod 40 to move, and the adjustment rod 40 drives the sliding plug 39 to move, and the sliding plug 39 moves downward relative to the adjustment cylinder 28 to suck the air in the connecting cavity 35 through the connecting hole 36 to form a negative pressure, and the top of the through hole 42 is the bottom surface of the protective film of the liquid crystal module 13, and the corresponding liquid crystal module 13 is sucked by the negative pressure, so that the liquid crystal module 13 is synchronous with the liquid crystal module 13. The step-moving carrier 2 fixes the relatively stationary liquid crystal module 13 through negative pressure, which, on the one hand, increases the degree of fixation of the liquid crystal module 13 to prevent the liquid crystal module 13 from moving relative to the tape 11 due to inertia; on the other hand, the liquid crystal module 13 is brought close to the tape 11 through the negative pressure, so that the protective film of the liquid crystal module 13 is tightly attached to the tape 11 in a surface-to-surface contact state, that is, the tape 11 effectively adheres to the protective film while preventing the liquid crystal module 13 from being crushed, which is beneficial for the subsequent tape 11 to stick to the protective film and improve the reliability of film tearing. At this time, the linear drive mechanism 22 is cooperated to accelerate the movement within the rated acceleration range.

[0021] After the negative pressure is formed, the acceleration of the linear drive mechanism 22 increases, and the negative pressure fixation is combined to further improve the rhythm of the film tearing action while preventing the liquid crystal module 13 from separating from the tape 11. The carrier 2 and the liquid crystal module 13 enter the deceleration stage, and the carrier 2 and the liquid crystal module 13 decelerate to reach the rated speed. At this time, the carrier 2 drives the adjustment block 5 to move out of contact with the adjustment plate 6, and the adjustment spring 37 pushes the sliding plug 39 to reset, and the telescopic spring 41 pushes the adjustment block 5 to extend and reset. The carrier 2 removes the fixation on the liquid crystal module 13, and the carrier 2 is braked by the brake motor 33. The liquid crystal module 13 continues to decelerate within the rated acceleration range and moves until it partially protrudes from the carrier 2 and then stops moving. While preventing the liquid crystal module 13 from deviating due to inertia, the rate at which the tape 11 pulls the liquid crystal module 13 is further increased, thereby improving the rhythm of the backlight assembly machine.

[0022] An operating method of a fully automatic backlight assembly machine for processing a mobile phone screen, characterized in that it comprises the following steps: S1: The robot arm places the liquid crystal module 13 on the top surface of the carrier 2 to complete the loading, and the first coupler 27 and the second coupler 30 are engaged; S2: The linear drive mechanism 22 drives the active roller 4 to rotate and the stage 2 to move, and the active roller 4 pulls the tape 11 to drive the liquid crystal module 13 and the stage 2 to move synchronously; S3: the linear drive mechanism 22 accelerates within the rated acceleration range until the adjustment plate 6 cooperates with the adjustment block 5 to drive the sliding plug 39 to move the suction connection chamber 35 to form a negative pressure, and the linear drive mechanism 22 accelerates and increases in acceleration; S4: the linear drive mechanism 22 drives the carrier 2 and the active roller 4 to decelerate; S5: After the speed of the liquid crystal module 13 is reduced to the rated value, the second coupler 30 is separated, the third coupler 31 is engaged, the brake motor 33 brakes the carrier 2, and the linear drive mechanism 22 drives the active roller 4 to maintain the acceleration within the rated range for deceleration movement; S6: the robot arm fixes the liquid crystal module 13, the first coupler 27 is separated, the second coupler 30 is engaged, and the linear drive mechanism 22 drives the stage 2 to reset, waiting for the next round of liquid crystal modules 13 to be loaded.

[0023] The above description of the disclosed embodiments enables one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A fully automatic backlight assembly machine for processing mobile phone screens, comprising a mounting seat (1), a movable plate (3) is movably provided on one side of the mounting seat (1), a carrier (2) is fixedly connected to the top of the connecting rod (34), a reel (15) is rotatably connected to one side of the mounting seat (1), and an adhesive tape (11) is provided outside the reel (15), characterized in that: The other side of the bottom of the mounting seat (1) is rotatably connected to an active roller (4), a linear drive mechanism (22) is fixedly arranged on one side of the back of the mounting seat (1), an adjustment cylinder (28) is fixedly connected to one side of the bottom of the carrier (2), a plurality of through holes (42) distributed in a rectangular shape are provided on the top of the carrier (2), a sliding plug (39) is slidably sleeved in the adjustment cylinder (28), a connecting cavity (35) is provided inside the carrier (2), and a connecting hole (36) for connecting the adjustment cylinder (28) and the connecting cavity (35) is provided in both the carrier (2) and the adjustment cylinder (28); The mounting seat (1) is provided with an adjustment mechanism, which can cooperate with the linear drive mechanism (22) and the adhesive tape (11) to drive the carrier (2) and the liquid crystal module (13) to move synchronously, and the adjustment mechanism can drive the sliding plug (39) to rise and fall relative to the adjustment cylinder (28) according to the position of the carrier (2), and cooperate with the through hole (42), the connecting cavity (35) and the connecting hole (36) to adjust the negative pressure at the bottom of the liquid crystal module (13) according to the position of the carrier (2), thereby changing the position between the bottom of the liquid crystal module (13) and the carrier (2). The adjusting mechanism can adjust the acceleration magnitude and acceleration state of the carrier (2) and the liquid crystal module (13) according to the fixed state and position of the liquid crystal module (13) and the carrier (2); when negative pressure is formed at the bottom of the liquid crystal module (13) and it is in the acceleration stroke stage, the adjusting mechanism drives the carrier (2) and the liquid crystal module (13) to accelerate and the acceleration increases; when the liquid crystal module (13) is in the acceleration stroke stage, the adjusting mechanism first drives the liquid crystal module (13) and the carrier (2) to decelerate and then removes the negative pressure.

2. The fully automatic backlight assembly machine for mobile phone screen processing according to claim 1, characterized in that: The plurality of through holes (42) are divided into two groups, the adjustment mechanism comprises an adjustment rod (40), the sliding plug (39) is fixedly connected to the adjustment rod (40), the bottom of the adjustment rod (40) is fixedly connected to a moving block (38), one side of the top of the mounting seat (1) is fixedly connected to a connecting seat (7), one side of the connecting seat (7) is fixedly connected to an adjustment plate (6), the inner side of the moving block (38) is slidably connected to an adjustment block (5), and the adjustment block (5) cooperates with the adjustment plate (6) to drive the moving block (38) to rise and fall during the synchronous movement of the carrier (2) and the liquid crystal module (13).

3. The fully automatic backlight assembly machine for mobile phone screen processing according to claim 2, characterized in that: The number of the adjustment plate (6) and the adjustment block (5) is set to two. The adjustment block (5) comprises a sliding portion (501). The side of the sliding portion (501) located outside the moving block (38) is set to be an arc-shaped contraction portion (502). The adjustment plate (6) comprises a plate body (601). One side of the plate body (601) is set to be a first guide portion (602) with an inclined surface. The first guide portion (602) is matched with the contraction portion (502). One side of the top surface of the sliding portion (501) is set to be an arc-shaped lifting portion (503). One side of the plate body (601) is set to be a second guide portion (603) matched with the lifting portion (503). The bottom of the second guide portion (603) is an inclined surface. An adjustment spring (37) is movably arranged in the adjustment cylinder (28). A telescopic spring (41) is movably sleeved in the moving block (38).

4. The fully automatic backlight assembly machine for mobile phone screen processing according to claim 1, characterized in that: The bottom of the output end of the linear drive mechanism (22) is fixedly connected to a first gear plate (23); the back side of the mounting seat (1) is rotatably connected to a transmission gear (32); the back side of the mounting seat (1) is rotatably provided with a driving gear (18); the front side of the mounting seat (1) is fixedly connected to a brake motor (33) at the top; a third coupler (31) is provided between the brake motor (33) and the transmission gear (32); a second coupler (30) is provided between the driving gear (18) and the transmission gear (32); a passive gear (19) is rotatably provided on one side of the back side of the mounting seat (1) at the bottom; and a first coupler (27) is provided between the passive gear (19) and the active roller (4).

5. The fully automatic backlight assembly machine for mobile phone screen processing according to claim 4, characterized in that: A connecting rod (34) is fixedly connected to one side of the movable plate (3), and the connecting rod (34) is slidably sleeved with the mounting seat (1). The first tooth plate (23) is meshed with the driving gear (18), and the second tooth plate (29) is meshed with the transmission gear (32). A gear set (20) for transmission connection between the driving gear (18) and the driven gear (19) is provided on one side of the back side of the mounting seat (1).

6. The fully automatic backlight assembly machine for mobile phone screen processing according to claim 1, characterized in that: A winding roller (16) is rotatably connected to one side of the bottom of the mounting seat (1), a second tensioning motor (25) for driving the winding roller (16) to rotate is fixedly arranged on one side of the bottom of the mounting seat (1), a first tensioning motor (24) for driving the unwinding roller (15) to rotate is fixedly arranged on one side of the mounting seat (1), and a position sensor (21) is fixedly arranged on one side of the mounting seat (1).

7. The fully automatic backlight assembly machine for mobile phone screen processing according to claim 1, characterized in that: An adjusting roller (10) is movably arranged at a bottom position on the front side of the mounting seat (1), and a tensioning spring (26) for driving and pushing the adjusting roller (10) to tension the adhesive tape (11) is fixedly connected to the bottom of the mounting seat (1).

8. The fully automatic backlight assembly machine for mobile phone screen processing according to claim 1, characterized in that: A pressing roller (8) is rotatably provided on one side of the mounting seat (1), and a pressing cylinder (9) for driving and pushing the pressing roller (8) to press against the active roller (4) is fixedly provided on one side of the mounting seat (1).

9. The fully automatic backlight assembly machine for mobile phone screen processing according to claim 1, characterized in that: The front side of the mounting seat (1) is rotatably connected to a guide roller (17), the number of the guide rollers (17) being set to be a plurality, one side of the movable plate (3) is rotatably connected to a first movable roller (12), and the other side of the movable plate (3) is rotatably connected to a second movable roller (14).

10. An operating method of a fully automatic backlight assembly machine for mobile phone screen processing, characterized in that: Using a fully automatic backlight assembly machine for processing a mobile phone screen as described in any one of claims 1 to 9 comprises the following steps: S1: The robot arm places the liquid crystal module (13) on the top surface of the carrier (2) to complete the loading, and the first coupler (27) and the second coupler (30) are connected; S2: The linear drive mechanism (22) drives the active roller (4) to rotate and the carrier (2) to move, and the active roller (4) pulls the adhesive tape (11) to drive the liquid crystal module (13) and the carrier (2) to move synchronously; S3: the linear drive mechanism (22) accelerates within the rated acceleration range until the adjustment plate (6) cooperates with the adjustment block (5) to drive the sliding plug (39) to move the suction connection chamber (35) to form a negative pressure, and the linear drive mechanism (22) accelerates and increases its acceleration; S4: the linear drive mechanism (22) drives the carrier (2) and the active roller (4) to decelerate; S5: After the speed of the liquid crystal module (13) is reduced to the rated value, the second coupler (30) is separated, the third coupler (31) is engaged, the brake motor (33) brakes the carrier (2), and the linear drive mechanism (22) drives the active roller (4) to maintain an acceleration within the rated range for deceleration movement; S6: The mechanical arm fixes the liquid crystal module (13), the first coupler (27) is separated, the second coupler (30) is engaged, and the linear drive mechanism (22) drives the carrier (2) to reset, waiting for the next round of liquid crystal modules (13) to be loaded.

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