Full-automatic film tearing machine for liquid crystal screen reflector

Abstract

The invention relates to a full-automatic film tearing machine for liquid crystal screen reflectors. The full-automatic film tearing machine comprises a feeding bin, a feeding mechanism and a transfer manipulator, wherein the feeding mechanism takes the reflectors one by one from the feeding bin and places the reflectors in a correction mechanism for position correction; the transfer manipulator takes the reflectors from the correction mechanism and sequentially conveys the reflectors to a lower film tearing mechanism and an upper film tearing mechanism for film tearing; the lower film tearing mechanism comprises a lower film tearing suction cup used for tearing one corner of the lower film of the reflector under the cooperation of the transfer manipulator, and a lower film clamping jaw air cylinder used for clamping one corner of an opening of the lower film and tearing down the lower film under the cooperation of the transfer manipulator. The upper film tearing mechanism comprises an adsorption assembly which is used for placing the reflecting plate and can move horizontally, and an air cylinder set which is used for tearing down the upper film in the translation process of the adsorption assembly; the mode of tearing off the lower film and the upper film step by step is adopted, the thin film with high viscosity can be effectively torn off from the reflecting plate through cooperation of the air cylinder and the transferring mechanical arm, and the device has the advantages of being high in automation degree, precision and reliability and the like.

Description

Technical Field

[0001] The invention relates to the field of liquid crystal screen production, in particular to a full-automatic film tearing machine for a reflective plate of a liquid crystal screen. Background Art

[0002] The main function of the reflector in the LCD screen is to enhance the uniformity of light, and it usually works in conjunction with components such as filter layers and refraction plates.

[0003] At present, after the production of reflective boards, protective films are attached to both sides of the reflective boards to prevent the surface of the reflective boards from being scratched or adhering to dust and other debris. Before installing the reflective boards, the protective films on the reflective boards need to be torn off for installation and use;

[0004] In order to improve the efficiency of automated production, many factories currently use film tearing machines to tear off protective films. For example, the prior art 202022378671.5 discloses a fully automatic liquid crystal display light guide plate film tearing device. Although it can tear off the upper and lower protective films of the light guide plate at the same time through a double-sided film tearing mechanism, it has the following problems:

[0005] (1) In the prior art, the double-sided film tearing mechanism only uses two sets of upper and lower adhesive wheels to tear off the two layers of protective films on the light guide plate. Since the adhesiveness of the adhesive wheel is limited, especially the longer the use time, the lower the adhesiveness. In addition, for some protective films with adhesives, the reflective plate and the film have strong adhesion, it is easy for the protective film to be unable to be torn off from the reflective plate.

[0006] (2) In the prior art, the upper and lower sets of adhesive wheels separate the protective films on the upper and lower surfaces of the light guide plate from the light guide plate during the horizontal movement of the light guide plate. The film tearing path is single, which makes it difficult to cope with complex adhesion scenarios.

[0007] (3) After the double-sided film tearing mechanism in the prior art tears off the film, the torn protective film will be wrapped around the upper and lower sticking wheel groups. It is difficult to remove the protective film wrapped around the upper and lower sticking wheel groups when resetting by only using the two pneumatic clamps on the clamping mechanism. The protective film is easily pulled tighter and broken on the sticking wheel group, and the machine is eventually shut down for manual processing.

[0008] (4) In the prior art, the separation and fetching mechanism can use the suction bracket to press against the center of the light guide plate, and use the separation cylinder to drive the swing bracket to flip up the four corners of the light guide plate, thereby destroying the vacuum condition between two adjacent light guide plates; however, since the reflective plates are made of plastic and are stacked and stored, static electricity is easily generated and they are tightly adsorbed together. In addition, the reflective plates are relatively thin and soft as a whole. Even if the separation cylinder is used to drive the swing bracket to flip up the four corners of the light guide plate, the reflective plates tightly adsorbed together under static electricity may not be separated, resulting in the problem of multiple pieces being taken by mistake;

[0009] (5) The prior art has adopted a three-axis mobile suspension, and the separation material-collecting mechanism is provided with a lifting material-collecting cylinder. However, a lifting plate, a push rod and a lifting motor are also required in the silo, which makes the overall structure more complicated and greatly increases the production cost. Summary of the invention

[0010] The purpose of the invention is to provide a fully automatic film tearing machine for a liquid crystal screen reflector in order to overcome the deficiencies of the prior art.

[0011] To achieve the above object, the technical solution adopted by the present invention is: a fully automatic film tearing machine for a reflective plate of a liquid crystal screen, comprising a frame, a feeding bin, a loading mechanism, a correction mechanism, a transfer manipulator, a film tearing mechanism and a film tearing mechanism respectively arranged on the frame;

[0012] The supply bin is used to store stacked reflective panels;

[0013] The feeding mechanism is used to take the reflective sheet from the feeding bin, wherein the feeding mechanism can separate multiple reflective sheets adsorbed together due to static electricity, ensuring that only one reflective sheet is taken and placed in the correction mechanism;

[0014] The correction mechanism is used to correct the position of the reflector;

[0015] The transfer robot is used to send the corrected reflector from the correction mechanism to the tear-off film mechanism to tear off the lower film, and then to the tear-off film mechanism to tear off the upper film, including a mechanical arm and a suction cup assembly arranged at the driving end of the mechanical arm; the suction cup assembly includes a suction cup bracket and a plurality of vacuum suction cups evenly disposed at the bottom of the suction cup bracket;

[0016] The tear-off film mechanism comprises a tear-off film suction cup with a suction port facing upwards for sucking a corner of the lower film of the reflector, a lower film clamping claw cylinder arranged beside the tear-off film suction cup, and a pressure block arranged at a corner of the suction cup bracket; the pressure block is used to press against a corner of the reflector film to facilitate the tear-off film suction cup to suck a corner of the lower film; the tear-off film suction cup is used to tear off a corner of the lower film of the reflector in cooperation with the transfer robot; the lower film clamping claw cylinder is used to clamp a corner of the lower film opening, and complete the tearing off of the lower film in cooperation with the transfer robot;

[0017] The film tearing mechanism includes a linear film group, a carrying plate horizontally arranged on the driving end of the linear film group, an adsorption component arranged on the carrying plate, a beam arranged above the linear film group and placed perpendicular to the linear film group, a lifting cylinder vertically arranged on the beam, and an upper film clamping cylinder obliquely arranged at the driving end of the lifting cylinder.

[0018] Preferably, the film tearing mechanism further comprises a motor vertically arranged on the carrying plate for driving the adsorption assembly to rotate horizontally.

[0019] Preferably, the feeding mechanism includes an XYZ-axis linear module disposed on the frame and above the feeding bin and the calibration mechanism, a material taking component disposed at the driving end of the XYZ-axis linear module, and a detection component disposed on the frame;

[0020] The material taking component includes a support plate, separation cylinders respectively vertically disposed at four corners of the support plate, suction cups disposed below the support plate and at the driving ends of the separation cylinders, a top rod vertically disposed at the center of the bottom of the support plate, and an electrostatic eliminator ion blower disposed on one side of the support plate; a sensor is disposed at the bottom of the top rod, which can feed back the position information of the reflector in the feeding bin to the control system;

[0021] The detection component is used to detect whether only one reflector is sucked on the material taking component. If multiple reflectors are sucked, the two groups of separation cylinders placed diagonally alternately expand and contract to twist the reflectors, and cooperate with the electrostatic eliminator ion blower to blow ion wind to separate the reflectors adsorbed together, ensuring that the material taking component can only suck one reflector at a time.

[0022] Preferably, at least one feeding bin is provided, which includes a storage base and a plurality of limiting rods respectively vertically disposed around the storage base; the plurality of limiting rods form a receiving cavity for placing reflectors; brushes are disposed at the tops of the plurality of limiting rods for initially peeling off the reflectors adsorbed together.

[0023] Preferably, the plurality of limiting rods are adjustable in both the length and width directions.

[0024] Preferably, the feeding bin further includes L-shaped support seats respectively located on both sides of the storage base, two horizontal slide rails respectively used for connecting the L-shaped support seats and the sides of the storage base, a cover plate disposed at the outer end of the storage base, and a handle disposed outside the cover plate.

[0025] Preferably, the calibration mechanism includes a calibration frame, an X-axis lead screw double-nut assembly and a Y-axis lead screw double-nut assembly vertically and staggeredly disposed in the calibration frame; both the X-axis lead screw double-nut assembly and the Y-axis lead screw double-nut assembly include a horizontally placed lead screw with opposite thread directions at both ends, nuts respectively disposed at both ends of the lead screw, a servo motor for driving the lead screw to rotate to make the two threads approach or separate from each other, and an extension frame disposed on the nut; a calibration column vertically disposed on the extension frame and extending above the calibration frame for calibrating the position of the reflector is provided; the plurality of calibration columns form a calibration area for accommodating the reflector.

[0026] Preferably, a moving platform for driving the calibration mechanism to move towards the transfer manipulator is further disposed on the machine table.

[0027] Preferably, a waste collection device is further included; the waste collection device includes a lower film vacuum feeder and an upper film vacuum feeder;

[0028] The lower film vacuum suction device is arranged in the frame and is located beside the lower film clamping claw cylinder; the tearing film mechanism also includes a tearing film support, a rotating cylinder arranged on the tearing film support, and an extension cylinder arranged at the driving end of the rotating cylinder; the lower film clamping claw cylinder is arranged at the driving end of the extension cylinder;

[0029] The upper film vacuum suction device is arranged in the frame and is located below the upper film clamping claw cylinder.

[0030] Preferably, the frame is provided with an inspection mechanism and an online manipulator at the discharging end of the film tearing mechanism;

[0031] The online manipulator is used to take the reflective sheet from the adsorption assembly and place it on the inspection mechanism for inspection, and then send the qualified reflective sheet to the assembly equipment of the next process;

[0032] The inspection mechanism is used to inspect whether the upper film and the lower film on both sides of the reflective film are completely torn off.

[0033] Due to the application of the above technical solution, the present invention has the following advantages compared with the prior art:

[0034] 1. The present invention adopts the method of tearing off the lower film and the upper film in steps. The cylinder cooperates with the transfer manipulator to effectively tear off the film with strong viscosity from the reflective plate, which has the advantages of high automation, high precision and high reliability;

[0035] 2. In the present invention, the film tearing mechanism first presses a corner of the lower film with a pressing block, and the film tearing suction cup is pulled obliquely to tear a small hole, and then the film is gradually torn off by the clamping claw cylinder, thereby avoiding the tearing problem caused by direct pulling; and in the film tearing mechanism, the adsorption component rotates 30-45° and then moves horizontally to tear the film, which optimizes the film tearing angle and path, can cope with complex adhesion scenarios, and greatly improves the success rate of film tearing;

[0036] 3. The present invention solves the problem of electrostatic adsorption through the dual design of preliminary separation by the feed bin brush and dynamic separation of the material taking component, which can effectively separate multiple reflective panels adsorbed together due to static electricity, greatly reduce the error rate, and significantly improve reliability.

[0037] 4. In the present invention, the waste film is automatically collected by a vacuum suction device. Specifically, the lower film vacuum suction device combines the rotating cylinder and the extending cylinder to collect the torn lower film, and the upper film vacuum suction device directly uses gravity and suction to collect the upper film. The waste film recovery rate is high, and manual intervention and environmental pollution are reduced.

[0038] 5. In the present invention, high-precision correction can be achieved through the X / Y bidirectional screw and double nut assembly in the correction mechanism before film tearing, with high positioning accuracy, and the consistency of the film tearing edge is significantly improved. In addition, by setting a mobile platform, interference between the mechanical arm and the feeding mechanism can be avoided when taking materials;

[0039] 6. In the present invention, the feeding bin adopts a pull-out structure, which is not only convenient for manual feeding, but also can be far away from the feeding mechanism to avoid danger. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] The technical solution of the present invention will be further described below in conjunction with the drawings:

[0041] Attached Figure 1 is a schematic structural diagram of the fully automatic film tearing machine for the liquid crystal screen reflector of the present invention;

[0042] Attached Figure 2 is a top view of the present invention after removing the protective cover;

[0043] Attached Figure 3 is a schematic structural diagram of the present invention after removing the protective cover;

[0044] Attached Figure 4 is a schematic structural diagram of the suction cup assembly in the present invention;

[0045] Attached Figure 5 is a schematic structural diagram of the film tearing mechanism in the present invention;

[0046] Attached Figure 6 is a schematic structural diagram of the upper film tearing mechanism in the present invention;

[0047] Attached Figure 7 is an installation schematic diagram of the lifting cylinder and the upper film clamping jaw cylinder in the present invention;

[0048] Attached Figure 8 is a schematic structural diagram of the motor-driven adsorption assembly in the present invention;

[0049] Attached Figure 9 is a schematic structural diagram of the feeding mechanism in the present invention;

[0050] Attached Figure 10 is a schematic structural diagram of the material taking assembly in the present invention;

[0051] Attached Figure 11 is a schematic structural diagram of the calibration mechanism in the present invention;

[0052] Attached Figure 12 is a partial schematic diagram of the calibration mechanism in the present invention;

[0053] Attached Figure 13 is a schematic structural diagram of the feeding bin in the present invention;

[0054] Attached Figure 14 is an end view of the feeding bin in the present invention;

[0055] Attached Figure 15 is a schematic structural diagram of the lead screw double-nut assembly in the feeding bin of the present invention.

[0056] Wherein: 1. Frame; 2. Feeding bin; 21. Material storage seat; 22. Limit rod; 23. Brush; 24. L-shaped support seat; 25. Slide rail; 26. Cover plate; 27. Handle; 28. Lead screw double nut assembly; 29. Adjusting handwheel; 3. Loading mechanism; 31. XYZ-axis linear module; 32. Material picking assembly; 321. Support plate; 322. Separation cylinder; 323. Suction cup; 324. Ejector rod; 325. Electrostatic eliminator ion blower; 33. Storage box; 4. Alignment mechanism; 41. Alignment frame; 42. X-axis lead screw double nut assembly; 421. X-axis lead screw; 422. X-axis nut; 423. X-axis servo motor; 424. X-axis extension frame; 425. X-axis alignment column; 43. Y-axis lead screw double nut assembly; 431. Y-axis lead screw; 432. Y-axis nut; 433. Y-axis servo motor; 434. Y-axis extension frame; 435. Y-axis alignment column; 44. Moving platform; 45. Inductive sensor; 5. Transfer manipulator; 51. Robot arm; 52. Suction cup assembly; 521. Suction cup bracket; 522. Vacuum suction cup; 6. Film tearing-off mechanism; 60. Lower film vacuum feeder; 61. Film tearing-off suction cup; 62. Lower film clamping jaw cylinder; 63. Pressure block; 64. Adjusting frame; 65. Long slot; 66. Spring; 67. Film tearing-off bracket; 68. Rotary cylinder; 69. Extension cylinder; 7. Upper film tearing-off mechanism; 70. Upper film vacuum feeder; 71. Linear film group; 72. Carrier plate; 73. Adsorption assembly; 74. Motor; 75. Cross beam; 76. Lifting cylinder; 77. Upper film clamping jaw cylinder; 8. Inspection mechanism; 9. On-line manipulator; 10. Protective cover; 11. Protective window; A. Reflector; B. Film. Detailed implementation manners

[0057] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0058] Accompanying Figures 1-8 The fully automatic film tearing machine for the liquid crystal screen reflector of the present invention includes a frame 1, a feeding bin 2, a loading mechanism 3, an alignment mechanism 4, a transfer manipulator 5, a film tearing-off mechanism 6, and an upper film tearing-off mechanism 7 respectively arranged on the frame 1;

[0059] The feeding bin 2 is used for storing the stacked reflectors A;

[0060] The loading mechanism 3 is used for picking up the reflector A from the feeding bin 2. The loading mechanism 3 can separate multiple reflectors A adsorbed together by static electricity to ensure that only one reflector A is picked up and placed in the alignment mechanism 4;

[0061] The alignment mechanism 4 is used for aligning the position of the reflector A;

[0062] The transfer manipulator 5 is used to first send the corrected reflector A from the correction mechanism 4 to the lower film tearing mechanism 6 to tear off the lower film, and then send it to the upper film tearing mechanism 7 to tear off the upper film. It includes a robotic arm 51 and a suction cup assembly 52 arranged at the driving end of the robotic arm 51; the suction cup assembly 52 includes a suction cup bracket 521 and a plurality of vacuum suction cups 522 evenly distributed at the bottom of the suction cup bracket 521;

[0063] The lower film tearing mechanism 6 includes a lower film tearing suction cup 61 with its suction port facing upward for sucking a corner of the lower film of the reflector A, a lower film clamping jaw cylinder 62 arranged beside the lower film tearing suction cup 61, and a pressing block 63 arranged at a corner of the suction cup bracket 521; the pressing block 63 is used to press against a corner of the film of the reflector A to facilitate the lower film tearing suction cup 61 to suck a corner of the lower film; the lower film tearing suction cup 61 is used to tear a corner of the lower film of the reflector A under the cooperation of the transfer manipulator 5; the lower film clamping jaw cylinder 62 is used to clamp a corner of the opening of the lower film and complete the tearing of the lower film under the cooperation of the transfer manipulator 5;

[0064] The upper film tearing mechanism 7 includes a linear film group 71, a carrier plate 72 horizontally arranged at the driving end of the linear film group 71, an adsorption assembly 73 arranged on the carrier plate 72, a motor 74 vertically arranged on the carrier plate 72 for driving the adsorption assembly 73 to rotate horizontally, a cross beam 75 arranged above the linear film group 71 and perpendicular to the linear film group 71, a lifting cylinder 76 vertically arranged on the cross beam 75, and an upper film clamping jaw cylinder 77 inclinedly arranged at the driving end of the lifting cylinder 76;

[0065] During operation: The operator stacks the reflectors A in the feeding bin 2, and then starts the equipment. The feeding mechanism 3 takes the reflectors A one by one from the feeding bin 2 and places them in the correction mechanism 4 for position correction. Among them, the feeding mechanism 3 can separate multiple reflectors A adsorbed together by static electricity to ensure that only one reflector A is taken and placed in the correction mechanism 4; then the transfer manipulator 5 is used to first send the corrected reflector A from the correction mechanism 4 to the lower film tearing mechanism 6 to tear off the lower film, and then send it to the upper film tearing mechanism 7 to tear off the upper film. The specific film tearing is as follows:

[0066] Although one corner of the upper film and the lower film both protrude from the reflector A, due to the existence of the upper film, the lower film clamping claw cylinder 62 cannot directly clamp the lower film, and can only tear a small hole through the tear-off film suction cup 61, and then clamp it through the lower film clamping claw cylinder 62; the specific working principle is as follows: the mechanical arm 51 drives the suction cup assembly 52 to make one corner of the reflector A film located at the suction opening of the tear-off film suction cup 61, because one corner of the suction cup bracket 521 is provided with a pressing block 63, which can resist one corner of the reflector A film, so that the tear-off film suction cup 61 sucks one corner of the lower film, and then the mechanical arm 51 drives the suction cup assembly 52 to drive the reflector A to move obliquely upward, and a small hole is torn in the lower film of the reflector A through the tear-off film suction cup 61, and then the lower film clamping claw cylinder 62 clamps the lower film of the torn opening The robot arm 51 continues to drive the suction cup assembly 52 to drive the reflector A to move obliquely upward until the lower film is completely torn off. Then the robot arm 51 drives the suction cup assembly 52 to send the reflector A with the lower film torn off to the adsorption assembly 73, which is adsorbed and fixed by the adsorption assembly 73. Then the motor 74 drives the adsorption assembly 73 to rotate horizontally about 30-45 degrees, so that one corner of the reflector A is facing the upper film clamping cylinder 77. Then the linear module drives the carrying plate 72 to drive the reflector A to the bottom of the upper film clamping cylinder 77. The lifting cylinder 76 drives the upper film clamping cylinder 77 to descend, and clamps a corner of the upper film of the reflector A through the upper film clamping cylinder 77. Then the linear module continues to drive the carrying plate 72 to drive the reflector A to move horizontally until the upper film is completely torn off.

[0067] Further, if Figure 4 As shown, the pressing block 63 is installed at a corner of the suction cup bracket 521 through an adjustment frame 64, and the height of the pressing block 63 and the distance between the pressing block 63 and the suction cup bracket 521 can be adjusted, and multiple sizes of reflectors A can be compatible; specifically, the horizontal part and the vertical part of the adjustment frame 64 are provided with long grooves 65, and the height of the pressing block 63 and the distance between the pressing block 63 and the suction cup bracket 521 can be adjusted by loosening and tightening the locking piece.

[0068] Further, if Figure 4 As shown, the adjustment frame 64 is connected to the pressing block 63 via a spring 66, which can play a buffering role when the film B at an angle of the reflector A contacts the tear-off film suction cup 61, thereby avoiding damage to the tear-off film suction cup 61.

[0069] Further, if Figures 9-10 As shown, the feeding mechanism 3 includes an XYZ axis linear module 31 arranged on the frame 1 and located above the feeding bin 2 and the correction mechanism 4, a material taking component 32 arranged at the driving end of the XYZ axis linear module 31, and a detection component (not marked in the figure) arranged on the frame 1;

[0070] The material taking assembly 32 includes a support plate 321, a separation cylinder 322 vertically arranged at the four corners of the support plate 321, a suction cup 323 located below the support plate 321 and arranged on the driving end of the separation cylinder 322, a push rod 324 vertically arranged at the bottom center of the support plate 321, and a static electricity removal ion blower 325 arranged on one side of the support plate 321; a pressure sensor is arranged at the bottom of the push rod 324, which can feed back the position information of the reflector A in the feed bin 2 to the control system;

[0071] The detection component detects whether only one reflector A is sucked up by the material taking component 32 through optical fiber. If multiple reflectors A are sucked up, two sets of separation cylinders 322 placed diagonally are used to alternately stretch and twist the reflectors A and cooperate with the static electricity removing ion blower 325 to blow ion wind to separate the reflectors A adsorbed together, so as to ensure that the material taking component 32 can only suck up one reflector A at a time.

[0072] The principle of the material taking component 32 separating the reflective plates A adsorbed together is as follows: when the XYZ axis linear module 31 drives the material taking component 32 to absorb the reflective plates A from the feeding bin 2, the bottom of the push rod 324 first contacts the uppermost reflective plate A. Since the head of the push rod 324 is provided with a pressure sensor, the position information of the reflective plate A can be fed back to the control system. At this time, the bottom of the push rod 324 supports the middle of the reflective plate A, and the four separation cylinders 322 respectively drive the suction cups 323 to extend to absorb the four corners of the reflective plate A, and then send them to the detection component for inspection. If only one reflective plate A is absorbed, it is directly sent to the correction mechanism 4 for position correction; on the contrary, if multiple reflective plates A are absorbed, the two groups of separation cylinders 322 placed diagonally are alternately extended and retracted to cause the reflective plate A to bend and deform. At the same time, the static electricity removing ion blower will keep blowing ion wind to the sides of the multiple reflective plates A, and static electricity is eliminated by the neutralization of ions and the static electricity on the surfaces of the multiple reflective plates A, until the reflective plates A adsorbed together are separated.

[0073] Further, if Figure 2 As shown, a storage box 33 is provided on the frame 1 beside the detection component. When the material taking component 32 separates the adsorbed reflective plates A, it is located just above the storage box 33, and the separated and fallen reflective plates A fall into the storage box 33 for collection.

[0074] Further, if Figures 11-12As shown, the correction mechanism 4 includes a correction frame 41, an X-axis lead screw double-nut assembly 42 and a Y-axis lead screw double-nut assembly 43 that are vertically and staggeredly arranged within the correction frame 41; both the X-axis lead screw double-nut assembly 42 and the Y-axis lead screw double-nut assembly 43 include a horizontally placed lead screw with opposite helix directions at both ends, nuts respectively arranged at both ends of the lead screw, a servo motor for driving the lead screw to rotate to make the two threads approach or move away from each other, and an extension frame arranged on the nut; a correction column that is vertically arranged on the extension frame and extends out of the top of the correction frame 41 for correcting the position of the reflector A; multiple said correction columns form a correction area for accommodating the reflector A.

[0075] After the feeding mechanism 3 takes the reflector A one by one from the feeding bin 2 and places it in the correction area, in the X-axis lead screw double-nut assembly 42, the X-axis lead screw 421 is driven to rotate by the X-axis servo motor 423. Since the helix directions at both ends of the X-axis lead screw 421 are opposite, the X-axis nuts 422 at both ends are respectively driven to bring the X-axis extension frames 424 closer to each other until the X-axis correction columns 425 in the length direction contact the edges of the film B at both ends of the reflector A, realizing the position correction in the length direction.

[0076] The Y-axis lead screw double-nut assembly 43 drives the Y-axis lead screw 431 to rotate through the Y-axis servo motor 433. Since the helix directions at both ends of the Y-axis lead screw 431 are opposite, the Y-axis nuts 432 at both ends are respectively driven to bring the Y-axis extension frames 434 closer to each other until the Y-axis correction columns 435 in the width direction contact the edges of the film B on both sides of the reflector A, realizing the position correction in the width direction.

[0077] Further, as Figure 11 shown, a moving platform 44 for driving the correction mechanism 4 to move towards the transfer manipulator 5 is also arranged on the machine table, avoiding interference between the transfer manipulator 5 and the feeding mechanism 3 when the transfer manipulator 5 takes materials from the correction mechanism 4.

[0078] Further, as Figure 13 shown, the feeding bin 2 includes a storage seat 21 and multiple limiting rods 22 that are respectively vertically arranged around the storage seat 21; multiple said limiting rods 22 form an accommodation cavity for placing the reflector A; brushes 23 are arranged at the tops of multiple said limiting rods 22 for initially peeling off the reflectors A adsorbed together.

[0079] During operation: The staff stacks the reflectors A in the accommodation cavity and limits them respectively through multiple limiting rods 22 around; when the feeding mechanism 3 takes the reflector A from the accommodation cavity, the brushes 23 at the tops of the limiting rods 22 can initially peel off the reflectors A adsorbed together.

[0080] Further, as Figures 13-14As shown in the figure, the feeding bin 2 further includes L-shaped support seats 24 respectively located on both sides of the storage seat 21, two horizontally placed slide rails 25 respectively used to connect the L-shaped support seats 24 and the side surface of the storage seat 21, a cover plate 26 arranged at the outer end of the storage seat 21, and a handle 27 arranged outside the cover plate 26; when one of the feeding bins 2 is out of material, the equipment gives an alarm. At this time, the staff pulls out the storage seat 21 through the handle 27 for replenishing materials. Since the pulled-out storage seat 21 is far from the working area of the feeding mechanism 3, it can effectively avoid danger during replenishing materials, and has high safety.

[0081] Furthermore, as Figure 15 shown, multiple limiting rods 22 can be adjusted in both the length and width directions to adapt to different sizes of the reflector A; the distance between the limiting rods 22 can be adjusted by a screw double-nut assembly or a long slot structure. In this embodiment, the distance between the limiting rods 22 in the length direction is adjusted by the screw double-nut assembly 28. The adjusting handwheel 29 of the screw double-nut assembly 28 extends into the cover plate 26 and is located below the handle 27, while the distance between the limiting rods 22 in the width direction is manually adjusted by a long slot in cooperation with a bolt.

[0082] Furthermore, as Figure 2 shown, two feeding bins 2 are provided and placed side by side; when one is feeding, the other is convenient for manual replenishing materials to achieve non-stop operation.

[0083] Furthermore, as Figure 2 and Figure 5 shown, it further includes a waste collection device; the waste collection device includes a lower film vacuum suction device 60 and an upper film vacuum suction device 70;

[0084] The lower film vacuum suction device 60 is arranged inside the frame 1 and is beside the lower film clamping jaw cylinder 62; the film tearing mechanism 6 further includes a film tearing bracket 67, a rotary cylinder 68 arranged on the film tearing bracket 67, and an extension cylinder 69 arranged at the driving end of the rotary cylinder 68; the lower film clamping jaw cylinder 62 is arranged at the driving end of the extension cylinder 69; when the lower film clamping jaw cylinder 62 tears off the lower film, the extension cylinder 69 extends, and at the same time, the rotary cylinder 68 drives the lower film clamping jaw to rotate towards the lower film vacuum suction device 60. After rotating in place, the lower film clamping jaw cylinder 62 releases the lower film, and the lower film vacuum suction device 60 generates suction to collect the lower film;

[0085] The upper film vacuum suction device 70 is arranged inside the frame 1 and is below the upper film clamping jaw cylinder 77; when the upper film clamping jaw cylinder 77 tears off the upper film, it directly releases the upper film, and the upper film vacuum suction device 70 generates suction to collect the upper film.

[0086] Furthermore, as Figure 2As shown in the figure, an inspection mechanism 8 and an on-line manipulator 9 are provided at the discharge end of the film tearing and pasting mechanism 7 on the frame 1;

[0087] The on-line manipulator 9 is used to pick up the reflector A from the adsorption component 73, first place it on the inspection mechanism 8 for inspection, and send the qualified reflector A to the assembly equipment of the next process, realizing on-line operation, reducing manual intervention, and realizing full automation;

[0088] The inspection mechanism 8 visually inspects whether all the upper film and the lower film on both sides of the reflective film are torn off, significantly improving the reliability.

[0089] Furthermore, as Figure 11 shown in the figure, induction sensors 45 for detecting the presence or absence of the reflector A are provided at the bottom of the accommodation cavity and the calibration area, as well as on the adsorption component 73; when the induction sensor in the accommodation cavity detects the absence of the reflector A, a material shortage alarm is issued to remind the staff to replenish the material; when the induction sensor 45 in the calibration area detects the presence of the reflector A, the position calibration is started; if the induction sensor on the adsorption component 73 detects the presence of the reflector A, the film tearing and pasting action is performed.

[0090] Furthermore, as Figure 1 shown in the figure, a protective cover 10 is also provided on the frame 1; the feeding bin 2, the loading mechanism 3, the calibration mechanism 4, the transfer manipulator 5, the film tearing mechanism 6, the film tearing and pasting mechanism 7 and the on-line manipulator 9 are all located inside the protective cover 10, where the feeding bin 2 and the on-line manipulator 9 are respectively located at both ends of the protective cover 10, and one end of the protective cover 10 where the on-line manipulator 9 is located is of an open structure, facilitating docking with the assembly equipment of the next process.

[0091] Furthermore, as Figure 1 shown in the figure, an openable protective window 11 is provided on the side of the protective cover 10, facilitating daily maintenance and repair.

[0092] Furthermore, the protective window 11 is made of an acrylic plate of transparent material, facilitating the staff to understand the internal working conditions in real time.

[0093] The above are only specific application examples of the present invention, which do not constitute any limitation to the protection scope of the present invention. Any technical solutions formed by equivalent transformation or equivalent substitution fall within the scope of the protection of the present invention.

Claims

1. A fully automatic film tearing machine for LCD screen reflector, characterized by: It comprises a frame, a feeding bin, a loading mechanism, a correction mechanism, a transfer manipulator, a film tearing-off mechanism and a film tearing-on mechanism respectively arranged on the frame; The supply bin is used to store stacked reflective panels; The feeding mechanism is used to take the reflective sheet from the feeding bin, wherein the feeding mechanism can separate multiple reflective sheets adsorbed together due to static electricity, ensuring that only one reflective sheet is taken and placed in the correction mechanism; The correction mechanism is used to correct the position of the reflector; The transfer robot is used to send the corrected reflector from the correction mechanism to the tear-off film mechanism to tear off the lower film, and then to the tear-off film mechanism to tear off the upper film, including a mechanical arm and a suction cup assembly arranged at the driving end of the mechanical arm; the suction cup assembly includes a suction cup bracket and a plurality of vacuum suction cups evenly disposed at the bottom of the suction cup bracket; The tear-off film mechanism comprises a tear-off film suction cup with a suction port facing upwards for sucking a corner of the lower film of the reflector, a lower film clamping claw cylinder arranged beside the tear-off film suction cup, and a pressure block arranged at a corner of the suction cup bracket; the pressure block is used to press against a corner of the reflector film to facilitate the tear-off film suction cup to suck a corner of the lower film; the tear-off film suction cup is used to tear off a corner of the lower film of the reflector in cooperation with the transfer robot; the lower film clamping claw cylinder is used to clamp a corner of the lower film opening, and complete the tearing off of the lower film in cooperation with the transfer robot; The film tearing mechanism includes a linear film group, a carrying plate horizontally arranged on the driving end of the linear film group, an adsorption component arranged on the carrying plate, a beam arranged above the linear film group and placed perpendicular to the linear film group, a lifting cylinder vertically arranged on the beam, and an upper film clamping cylinder obliquely arranged at the driving end of the lifting cylinder.

2. The fully automatic film-tearing machine for LCD screen reflectors according to claim 1 is characterized by: The film tearing mechanism also includes a motor vertically arranged on the carrying plate for driving the adsorption component to rotate horizontally.

3. The fully automatic film-tearing machine for LCD screen reflector according to claim 1 is characterized by: The feeding mechanism includes an XYZ axis linear module arranged on the frame and located above the feeding bin and the correction mechanism, a material taking component arranged at the driving end of the XYZ axis linear module, and a detection component arranged on the frame; The material taking assembly includes a support plate, separation cylinders vertically arranged at the four corners of the support plate, a suction cup located below the support plate and arranged on the driving end of the separation cylinder, a mandrel vertically arranged at the center of the bottom of the support plate, and a static electricity removing ion blower arranged on one side of the support plate; a sensor is arranged at the bottom of the mandrel, which can feed back the position information of the reflector in the feeding bin to the control system; The detection component is used to detect whether only one reflector is sucked up by the material picking component. If multiple reflectors are sucked up, two sets of separation cylinders placed diagonally will alternately extend and retract the reflectors to twist them, and the static electricity removing ion blower will blow ion wind to separate the reflectors adsorbed together, ensuring that the material picking component can only suck up one reflector at a time.

4. The fully automatic film peeling machine for LCD screen reflector according to claim 1 is characterized by: The feed bin is provided with at least one, including a storage seat and a plurality of limit rods vertically arranged around the storage seat; the plurality of limit rods form a receiving cavity for placing reflective panels; brushes are provided on the tops of the plurality of limit rods for preliminarily peeling off the reflective panels adsorbed together.

5. The fully automatic film-tearing machine for LCD screen reflector according to claim 4 is characterized by: The plurality of limit rods are adjustable in length and width.

6. The fully automatic film-tearing machine for LCD screen reflector according to claim 5, characterized in that: The feeding bin also includes L-shaped support seats respectively located on both sides of the storage seat, two horizontally placed slide rails respectively used to connect the L-shaped support seat and the side of the storage seat, a cover plate arranged at the outer end of the storage seat, and a handle arranged on the outer side of the cover plate.

7. The fully automatic film-tearing machine for LCD screen reflector according to claim 1, characterized in that: The correction mechanism includes a correction frame, an X-axis lead screw double nut assembly and a Y-axis lead screw double nut assembly vertically and staggeredly arranged in the correction frame; the X-axis lead screw double nut assembly and the Y-axis lead screw double nut assembly both include a horizontally placed lead screw with opposite rotation directions at both ends, nuts respectively arranged at both ends of the lead screw, a servo motor driving the lead screw to rotate so that the two threads are close to or away from each other, and an extension frame arranged on the nut; a correction column extending from the top of the correction frame for correcting the position of the reflector is vertically arranged on the extension frame; a plurality of the correction columns form a correction area for accommodating the reflector.

8. The fully automatic film-tearing machine for LCD screen reflector according to claim 7, characterized in that: The machine platform is also provided with a moving platform for driving the correction mechanism to move toward the transfer robot.

9. The fully automatic film-tearing machine for LCD screen reflectors according to any one of claims 1 to 8, characterized in that: It also includes a waste collection device; the waste collection device includes a lower film vacuum suction device and an upper film vacuum suction device; The lower film vacuum suction device is arranged in the frame and is located beside the lower film clamping claw cylinder; the tearing film mechanism also includes a tearing film support, a rotating cylinder arranged on the tearing film support, and an extension cylinder arranged at the driving end of the rotating cylinder; the lower film clamping claw cylinder is arranged at the driving end of the extension cylinder; The upper film vacuum suction device is arranged in the frame and is located below the upper film clamping claw cylinder.

10. The fully automatic film-tearing machine for LCD screen reflectors according to any one of claims 1 to 8, characterized in that: The frame is provided with an inspection mechanism and an online manipulator at the discharging end of the film tearing mechanism; The online manipulator is used to take the reflective sheet from the adsorption assembly and place it on the inspection mechanism for inspection, and then send the qualified reflective sheet to the assembly equipment of the next process; The inspection mechanism is used to inspect whether the upper film and the lower film on both sides of the reflective film are completely torn off.

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