Optical film visual intelligent detection equipment and detection method

Abstract

The invention provides optical film visual intelligent detection equipment and a detection method, the optical film visual intelligent detection equipment comprises a base, the top of the base is fixedly connected with supporting frames, the interiors of the two supporting frames are rotatably connected with an unwinding roller and a winding roller respectively, a mounting frame is fixedly connected between the tops of the two supporting frames, and the mounting frame is trapezoidal; guide assemblies are arranged at the two ends of the inner side wall of the mounting frame and used for guiding conveying of the optical film and increasing the conveying tension of the optical film. The invention relates to the technical field of optical film visual inspection. When the optical film tension detection device is used, tension can be generated on the two sides of an optical film detection position according to the tension change of an optical film, so that the detected position is always in a proper tension state, the optical film is always in a straightened state, the phenomenon that the optical film shakes in the conveying process is avoided, and the detection accuracy is improved. Therefore, the light irradiation uniformity of the irradiated position is reduced, and the optical film detection effect is influenced.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of optical film visual detection, and particularly relates to an optical film visual intelligent detection device and a detection method. BACKGROUND

[0002] Optical films must have high light transmittance (such as a mobile phone film requiring a light transmittance of greater than or equal to 90%) and low haze, and a small scratch, a stain or a bubble will scatter light, resulting in display blurring, color distortion or abnormal reflection. A visual system can identify micron-level defects and ensure optical uniformity.

[0003] Therefore, the optical film needs to be visually detected to detect whether scratches and other defects occur in the optical film. When the optical film is visually detected, the optical film needs to be conveyed by using conveying rollers, and when the optical film is conveyed only by using the conveying rollers and pressing rollers, the tension change of the optical film will cause the optical film to shake during the conveying process. The light used for detection that is irradiated on the optical film will be refracted due to the shaking, and thus the light uniformity of the position of the optical film irradiated by the light will be reduced, which affects the visual detection of the optical film. SUMMARY

[0004] Therefore, the technical problem to be solved by the application is to provide an optical film visual intelligent detection device and a detection method, which can solve the problem that the light is refracted due to shaking, and thus the light uniformity of the position of the optical film irradiated by the light is reduced, which affects the visual detection of the optical film.

[0005] To solve the above problems, the application provides an optical film visual intelligent detection device and a detection method, which include a base, the top of the base is fixedly connected with support frames, the inner parts of two support frames are respectively rotationally connected with unwinding rollers and winding rollers, the top parts of the two support frames are fixedly connected with a mounting frame, and the mounting frame is arranged in a trapezoidal shape.

[0006] The inner side walls of the mounting frame are both provided with guide assemblies at both ends, which are used for guiding the conveying of the optical film and increasing the conveying tension of the optical film.

[0007] The side of the inner side wall of the mounting frame and located at the guide assembly is further provided with a control assembly, which is used for controlling the tension of the optical film during conveying.

[0008] The mounting frame is fixedly provided with an irradiation lamp and a camera through connecting pieces.

[0009] Further, the guide assembly comprises a cross rod fixedly connected between the two opposite side walls in the mounting frame, the top side of the cross rod is fixedly connected with springs, the top end of the spring is fixedly connected with a sliding support block, the bottom of the sliding support block is U-shaped, the bottom of the sliding support block is sleeved on the cross rod and is in sliding connection with the cross rod, and the top portions of the two sliding support blocks are rotatably connected with a guide roller.

[0010] Further, the two opposite side walls of the two sliding support blocks are each provided with an inner recess hole, a limiting torsion spring is fixedly connected in the inner recess hole, a limiting shaft is rotatably connected between the two limiting torsion springs, support rods are fixedly connected to the two ends of the outer periphery of the limiting shaft, a limiting shaft is rotatably connected between the end portions of the two support rods, and a gap is left between the outer periphery of the limiting shaft and the guide roller.

[0011] Further, the control assembly comprises two fixed blocks fixedly connected to the two opposite side edges in the mounting frame, and a rotating rod rotatably connected between the bottom sides of the opposite sides of the two fixed blocks.

[0012] Further, the middle portions of the opposite sides of the two fixed blocks are each rotatably connected with a rotating shaft, the end portions of the rotating shafts are inserted and fixedly connected with a lever, the lever is obliquely arranged, and the bottom side is in abutment with the top edge of the corresponding sliding support block, the end portions of the two levers are rotatably connected with a pressing shaft, and an auxiliary part is arranged between the rotating shaft and the corresponding fixed block.

[0013] Further, the auxiliary part comprises an auxiliary groove arranged in the middle portion of the side edge of the fixed block, an auxiliary torsion spring is fixedly connected in the auxiliary groove, and the end portions of the auxiliary torsion spring are fixedly connected with the corresponding rotating shaft.

[0014] Further, the connecting piece comprises two gantry supports arranged on the top top side wall and the top bottom side wall of the mounting frame through a balancing piece, the irradiation lamp is fixedly installed on the bottom side wall in the lower gantry support, and the camera is fixedly installed on the top side wall in the upper gantry support.

[0015] Further, the outer periphery of the end portion of the limiting shaft is provided with an annular groove, a gas bag ring is fixedly connected in the annular groove, the outer periphery of the gas bag ring is in abutment with the outer periphery of the guide roller, the outer periphery of the rotating rod is fixedly connected with two rotating discs, the two rotating discs are respectively located at the two end portions of the rotating rod and correspond to the positions of the corresponding end portions of the guide roller.

[0016] Further, the balancing piece comprises an upper groove and a lower groove, the upper groove is arranged on the top of the side of the mounting frame, the lower groove is arranged on the bottom of the side of the mounting frame, the butt joint rod is fixedly connected between the end portions of the two portal frames, the butt joint rod penetrates through the bottom side wall of the upper groove and is slidably connected with the bottom side wall of the upper groove, the upper supporting spring is fixedly connected with the bottom side wall of the upper groove, and the lower supporting spring is fixedly connected with the bottom side wall of the lower groove, wherein the upper supporting spring and the lower supporting spring are respectively fixedly connected with the corresponding end portions of the portal frames.

[0017] The inner side wall of the portal frame is fixedly connected with a pushing frame, two end portions of the side of the pushing frame close to the pushing rod are provided with pushing rods, the end portions of the pushing rods are fixedly connected with the pushing rod, and the side of the pushing rod close to the pushing frame is mutually attached to the pushing frame.

[0018] An optical film visual intelligent detection method is used for the optical film visual intelligent detection device, and the steps of the optical film visual intelligent detection method are as follows:

[0019] S101: the optical film is unwound from the position of the unwinding roller to the winding roller, and passes through the guide assembly and the control assembly;

[0020] S102: when passing through the guide assembly, the optical film is tightened and pressure is applied to the guide assembly;

[0021] S103: the tension of the optical film is increased, and the shaking amplitude of the optical film is reduced under the pushing of the guide assembly;

[0022] S104: the pushing force of the guide assembly is changed along with the change of the tension of the optical film in the conveying process, and the control assembly is further applied with pressure;

[0023] S105: the control assembly is changed along with the change of the pressure applied to the optical film by the guide assembly;

[0024] S106: finally, the optical film is always in a tight state, and the shaking amplitude of the optical film is reduced.

[0025] In summary, the present application has at least one of the following beneficial technical effects:

[0026] 1. An optical film visual intelligent detection device, which can generate a pulling force on both sides of the detection position of the optical film according to the change of the tension of the optical film in use, so that the detected position is always in a suitable tension state, and the optical film is always in a straight state, thereby avoiding the shaking phenomenon of the optical film in the conveying process, reducing the uniformity of light irradiation of the irradiated position, and affecting the detection effect of the optical film;

[0027] 2. An optical film visual intelligent detection equipment, an inner recess hole is opened on the side wall of the slider, a limiting torsion spring is fixedly connected in the inner recess hole, a limiting shaft is fixedly connected between the limiting torsion springs on the corresponding two sliding support blocks, a limiting shaft is fixedly connected on the outer circumferential side of the limiting shaft, when the optical film passes around the guide roller, the limiting shaft will extrude the optical film downward, the contact area between the optical film and the guide roller is increased, the phenomenon of slipping is avoided, the tension change of the optical film during conveying is reduced, and the conveying of the optical film is more stable.

[0028] 3. An optical film visual intelligent detection method, which can avoid the phenomenon that the optical film located at the positions of the camera and the irradiation lamp is relaxed due to the decrease of the tension during conveying, and the shaking of the optical film during conveying due to the relaxation, and the problem of the decrease of the light distribution uniformity due to the relaxation and shaking of the optical film, and the detection stability of the optical film visual detection. BRIEF DESCRIPTION OF DRAWINGS

[0029] Figure 1 It is a schematic diagram of the overall structure of the present application.

[0030] Figure 2 It is a schematic diagram of the structure of the connection of the guide assembly and the control assembly of the present application.

[0031] Figure 3 It is a schematic diagram of the structure of the sliding support block of the present application.

[0032] Figure 4 It is a schematic diagram of the structure at the fixed block of the present application.

[0033] Figure 5 It is a schematic diagram of the structure at the auxiliary part of the present application.

[0034] Figure 6 It is a schematic diagram of the structure at the inner recess hole of the present application.

[0035] Figure 7 It is a schematic diagram of the structure at the limiting torsion spring of the present application.

[0036] Figure 8 It is a schematic diagram of the structure of the rotary disc installation of the present application.

[0037] Figure 9 It is a schematic diagram of the structure of the balance installation of the present application.

[0038] The reference signs are represented as:

[0039] 1, base; 2, support frame; 3, winding roller; 4, unwinding roller; 5, mounting frame; 6, guide assembly; 7, control assembly; 8, connecting piece; 9, irradiation lamp; 10, camera; 11, cross rod; 12, spring; 13, sliding support block; 14, guide roller; 15, inner recess; 16, limiting torsion spring; 17, limiting shaft; 18, support rod; 19, limiting shaft; 20, fixed block; 21, rotating rod; 22, rotating shaft; 23, lever; 24, pressing shaft; 25, auxiliary piece; 26, auxiliary groove; 27, auxiliary torsion spring; 28, gantry support; 29, annular groove; 30, air bag ring; 31, turntable; 32, upper recess; 33, lower recess; 34, butt joint rod; 35, upper support spring; 36, lower support spring; 37, lever frame; 38, pushing rod; 39, balancing piece. DETAILED DESCRIPTION

[0040] In the description of the present application, it needs to be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like indicate the orientation or positional relationship shown in the drawings, which are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0041] In addition, the terms "first", "second" are only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise specifically limited.

[0042] In the present application, unless otherwise specifically defined and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through intermediate medium, or the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0043] The preferred embodiments of the present application are described below in conjunction with the accompanying drawings, it should be understood that the preferred embodiments described herein are only for the purpose of illustrating and explaining the present application, and are not intended to limit the present application.

[0044] For reference Figures 1-8As shown, according to the embodiment 1 of the present application, an optical film visual intelligent detection equipment is provided, comprising: a base 1, the top of the base 1 is fixedly connected with a support frame 2, two support frames 2 are respectively rotatably connected with an unwinding roller 4 and a winding roller 3, the top of the two support frames 2 is fixedly connected with a mounting frame 5, and the mounting frame 5 is arranged in a trapezoidal shape;

[0045] The inner side walls of the mounting frame 5 are both provided with a guide assembly 6 at both ends, which is used for guiding the conveying of the optical film and increasing the conveying tension of the optical film.

[0046] The inner side walls of the mounting frame 5 are both provided with a guide assembly 6 at both ends, which is used for guiding the conveying of the optical film and increasing the conveying tension of the optical film.

[0047] The mounting frame 5 is fixedly installed with an irradiation lamp 9 and a camera 10 through a connecting piece 8.

[0048] In this embodiment, referring to Figure 1 The optical film to be detected is wound on the unwinding roller 4, the end of the optical film passes through the guide assembly on the upper side of the mounting frame 5, passes through two control assemblies and then passes out from the guide assembly on the other side, and finally is wound by the winding roller 3. During this process, the irradiation lamp 9 is used to irradiate from the bottom of the optical film, and the camera 10 is used to take a picture of the optical film to detect whether there are scratches, foreign matters or other defects on the irradiated position of the passing optical film.

[0049] The guide assembly 6 is used to control the initial tension of the optical film when guiding the optical film initially, so as to press the guide assembly, the guide assembly is compressed after being pressed, the control assembly is used to further press the optical film, the position of the optical film at the camera 10 is in a horizontal movement and a straight state, the shaking phenomenon is avoided, the reaction force of the guide assembly cooperates with the initial tension of the optical film, the optical film is in a tight state during the conveying process, the reaction force can be automatically adjusted according to the tension of the optical film, the plastic deformation of the optical film caused by the too large tight degree and the shaking phenomenon caused by the too small tight degree are avoided.

[0050] In a further preferred embodiment of the present application, as Figure 2 The guide assembly 6 comprises a cross rod 11, the cross rod 11 is fixedly connected between the two opposite side walls in the mounting frame 5, the top side of the cross rod 11 is fixedly connected with a spring 12, the top end of the spring 12 is fixedly connected with a sliding support block 13, the bottom of the sliding support block 13 is arranged in a U shape, the bottom of the sliding support block 13 is sleeved on the cross rod 11 and is slidably connected with the cross rod 11, and the two sliding support blocks 13 are rotatably connected with a guide roller 14 between the top portions of the two sliding support blocks 13.

[0051] In this embodiment, combined with Figure 1 Referring to Figure 2, the optical film is wound around the guide roller 14 from above, and then passes through the control member. After the initial winding of the optical film is completed, a pulling force is applied to the optical film to keep it in a straightened state. At this time, the optical film is pressed downward, thereby suppressing the downward movement of the guide roller 14, and the guide roller 14 drives the sliding support block 13 to move downward, so that the sliding support block 13 can press the spring 12. When the tension of the optical film being conveyed decreases, the spring 12 drives the sliding support block 13 to move upward, and the guide rollers 14 at both ends of the mounting frame 5 move upward, thereby increasing the tension of the optical film being conveyed.

[0052] Then, the control member will press the optical film downward at the position irradiated by the camera 10 and the irradiation lamp 9 due to the upward movement of the sliding support block 13, so as to avoid the shaking of the optical film after relaxation, which affects the visual detection data of the irradiation of the optical film.

[0053] In further preferable embodiments of the present application, as shown in Figure 3 two inner recessed holes 15 are formed in the opposite side walls of the two sliding support blocks 13, and a limiting torsion spring 16 is fixedly connected in each inner recessed hole 15. Two limiting torsion springs 16 are fixedly connected between the two limiting torsion springs 16, and a limiting shaft 17 is rotatably connected between the two limiting torsion springs 16. A support rod 18 is fixedly connected to the outer circumferential side of both ends of the limiting shaft 17. A limiting shaft 19 is rotatably connected between the end portions of the two support rods 18, and a gap is left between the outer circumferential side of the limiting shaft 19 and the guide roller 14.

[0054] In the present embodiment, in combination with Figure 2 further preferably, as shown in Figure 3 an inner recessed hole 15 is formed in the side wall of the sliding block, and a limiting torsion spring 16 is fixedly connected in the inner recessed hole 15. The limiting torsion springs 16 on the corresponding two sliding support blocks 13 are fixedly connected to a limiting shaft 17, and a limiting shaft 19 is fixedly connected to the outer circumferential side of the limiting shaft 17. When the optical film passes through the guide roller 14, the limiting shaft 19 will press the optical film downward, so as to increase the contact area between the optical film and the guide roller 14, avoid the phenomenon of slipping, reduce the tension change of the optical film during conveying, and make the conveying of the optical film more stable.

[0055] In further preferable embodiments of the present application, as shown in Figure 4 and Figure 5 the control assembly 7 comprises two fixed blocks 20, which are fixedly connected to the opposite two side edges in the mounting frame 5. A rotating rod 21 is rotatably connected between the bottom sides of the opposite sides of the two fixed blocks 20. A rotating shaft 22 is rotatably connected to the middle portions of the opposite sides of the two fixed blocks 20. A push rod 23 is inserted into and fixedly connected to the end portions of the rotating shaft 22. The push rod 23 is inclined and abuts against the top edge of the corresponding sliding support block 13 at the bottom side. A pressing shaft 24 is rotatably connected between the end portions of the two push rods 23. An auxiliary member 25 is arranged between the rotating shaft 22 and the corresponding fixed block 20.

[0056] The auxiliary part 25 comprises an auxiliary groove 26, which is arranged in the middle of the side of the fixed block 20, and the auxiliary torsion spring 27 is fixedly connected in the auxiliary groove 26, and the end of the auxiliary torsion spring 27 is fixedly connected with the corresponding rotating shaft 22.

[0057] In the embodiment, the auxiliary part 25 is arranged on the fixed block 20. Figure 2 Referring to Figure 4 and Figure 5 When the optical film passes through the guide roller 14 and then passes from the bottom of the rotating shaft 21 and the pressing shaft 24, when the guide roller 14 is pressed downward by the optical film and is lowered, the sliding support block 13 is also lowered, the auxiliary torsion spring 27 drives the rotating shaft 22 to rotate, so that the pressing shaft 24 rises, at this time, the optical film only passes from the bottom of the rotating shaft 21, so that the optical film is in a horizontal and straight state, and when the tension decreases in the process of conveying the optical film, the guide roller 14 rises, the sliding support block 13 rises and pushes the push rod 23, the push rod 23 rotates through the rotating shaft 22 and drives the pressing shaft 24 to descend, so that the pressing shaft 24 presses the optical film, thereby increasing the tension of the optical film at the positions of the irradiation lamp 9 and the camera 10 in the process of conveying the optical film, avoiding the phenomenon of shaking due to relaxation, and affecting the visual detection work.

[0058] In a further preferred embodiment of the present application, as shown in Figure 1 and Figure 9 The connecting part 8 comprises two gantry supports 28, which are arranged on the top side wall and the top bottom side wall of the mounting frame 5 through the balance part, the irradiation lamp 9 is fixedly installed on the inner bottom side wall of the lower gantry support 28, and the camera 10 is fixedly installed on the inner top side wall of the upper gantry support 28.

[0059] In the embodiment, referring to Figure 1 One gantry support 28 is installed on the top side wall and the bottom side wall of the mounting frame 5, and the irradiation lamp 9 and the camera 10 are fixedly connected on the two gantry supports 28 respectively, so that the irradiation lamp 9 irradiates on the conveyed optical film, and the camera 10 detects the position of the optical film being irradiated, so as to detect the optical film by visual detection.

[0060] In a further preferred embodiment of the present application, as shown in Figure 7 and Figure 8 The outer peripheral end of the limiting shaft 19 is provided with an annular groove 29, and the annular balloon ring 30 is fixedly connected in the annular groove 29, the outer periphery of the balloon ring 30 is attached to the outer periphery of the guide roller 14, and the outer periphery of the rotating shaft 21 is fixedly connected with two rotating discs 31, which are respectively located at the two ends of the rotating shaft 21 and correspond to the corresponding end positions of the guide roller 14.

[0061] In this embodiment, combined with Figure 2 , refer to Figure 7 and Figure 8 , the annular groove 29 is arranged on the side of the limiting shaft 19, and the air bag ring 30 is fixedly connected in the annular groove 29, so that the air bag ring 30 can extrude the edge position of the passing optical film, avoiding the phenomenon of position deviation and edge lifting of the optical film, affecting the visual detection effect of the optical film;

[0062] The rotating disc 31 arranged can limit the straightened optical film, avoiding the phenomenon of side deviation of the straightened optical film, affecting the stability of the optical film during detection.

[0063] In further preferable embodiments of the present application, as shown in Figures 1-2 and Figure 9 , the balance piece 39 comprises an upper groove 32 and a lower groove 33, the upper groove 32 is arranged on the top side of the mounting frame 5, the lower groove 33 is arranged on the bottom side of the mounting frame 5, the butt joint rod 34 is fixedly connected between the ends of the two gantry supports 28, the butt joint rod 34 penetrates through the bottom side wall of the upper groove 32 and is in sliding connection with the bottom side wall of the upper groove 32, the upper support spring 35 is fixedly connected to the bottom side wall of the upper groove 32, and the lower support spring 36 is fixedly connected to the bottom side wall of the lower groove 33, wherein the upper support spring 35 and the lower support spring 36 are respectively fixedly connected to the corresponding ends of the gantry supports 28.

[0064] The inner side wall of the gantry is fixedly connected with the actuating frame 37, the two ends of the actuating frame 37 near one side of the push rod 23 are provided with the push rod 38, the end of the push rod 38 is fixedly connected with the push rod 23, and the side of the push rod 38 near the actuating frame 37 is in close contact with the actuating frame 37.

[0065] Referring to Figures 1-2 , when the optical film is tensioned, the push rod 23 is rotated up and down, and when the push rod is rotated up and down, referring to Figure 9 , the push rod 38 on the actuating frame 37 is pushed to move up and down, so that the push rod 38 can push the actuating frame 37 to move, and then the movement of the actuating frame 37 can drive the up and down movement of the two gantry supports 28, so that the irradiation lamp 9 and the camera 10 can move synchronously with the up and down movement of the optical film during self-adjustment, so that the irradiation point of the camera 10 is always unchanged, avoiding the phenomenon of refraction or scattering of light due to the change of the distance between the light and the optical film during the tensioning adjustment of the optical film, and then the phenomenon of picture blur change occurs, and then the problem of missing detection occurs, affecting the visual detection effect of the optical film;

[0066] The upper support spring 35 and the lower support spring 36 are used for supporting the upper gantry 28 and the lower gantry 28, the number of the upper support spring 35 and the lower support spring 36 is multiple, and the two gantries 28 are respectively slidably connected in the upper groove 32 and the lower groove 33, the upper support spring 35 and the lower support spring 36 are used for supporting the two gantries 28 in the balanced state in the upper groove 32 and the lower groove 33, so that the two gantries 28 can be moved up and down by the pushing force of the push rod 23, and the positions of the camera 10 and the irradiation lamp 9 can be adjusted.

[0067] Embodiment 2

[0068] According to another aspect of the present application, an optical film visual intelligent detection method is provided.

[0069] The optical film visual intelligent detection method comprises the following steps:

[0070] S101: The optical film is unwound from the unwinding roller 4 to the winding roller 3, and passes through the guide assembly 6 and the control assembly 7.

[0071] S102: When passing through the guide assembly 6, the optical film is tightened and pressure is applied to the guide assembly 6.

[0072] S103: The tension of the optical film is increased, and the shaking amplitude of the optical film is reduced under the pushing of the guide assembly 6.

[0073] S104: The pushing force of the guide assembly 6 is changed with the change of the tension of the optical film in the conveying process, and the control assembly 7 is further applied with pressure.

[0074] S105: The control assembly 7 is changed with the change of the pressure applied to the optical film by the guide assembly.

[0075] S106: Finally, the optical film is always in a tight state, and the shaking amplitude of the optical film is reduced.

[0076] In this embodiment, when the method is used, the phenomenon that the optical film located at the positions of the camera 10 and the irradiation lamp 9 is relaxed due to the decrease of the tension of the optical film in the conveying process, and the shaking of the optical film in the conveying process due to the relaxation, and the problem of the decrease of the uniformity of the light distribution due to the shaking of the optical film, and the influence on the detection stability of the optical film visual detection can be avoided.

[0077] Working principle: the optical film is wound over the guide roller 14 from above, and then passes through the control member. After the initial winding of the optical film is completed, a pulling force is applied to the optical film to keep it in a straightened state. At this time, the optical film is pressed downward, thereby pressing the guide roller 14 to move downward, so that the sliding support block 13 can press the spring 12. When the tightness of the optical film decreases during the conveying process, the spring 12 drives the sliding support block 13 to move upward, and the guide roller 14 at both ends of the mounting frame 5 moves upward, thereby increasing the tightness of the optical film during conveying.

[0078] When the optical film passes through the guide roller 14 and then passes from below the rotating shaft 21 and the pressing shaft 24, the sliding support block 13 also moves downward when the guide roller 14 is pressed downward and moves downward. The auxiliary torsion spring 27 drives the rotating shaft 22 to rotate, so that the pressing shaft 24 rises. At this time, the optical film only passes from the bottom of the rotating shaft 21, so that the optical film is in a horizontal and straightened state. When the tightness of the optical film decreases during the conveying process, the guide roller 14 rises, the sliding support block 13 rises and pushes the push rod 23, so that the push rod 23 rotates through the rotating shaft 22 and drives the pressing shaft 24 to move downward. The pressing shaft 24 presses the optical film downward, thereby increasing the tightness of the optical film at the positions of the irradiation lamp 9 and the camera 10 during the conveying process, avoiding the phenomenon of shaking due to relaxation, and affecting the visual detection work.

[0079] Those skilled in the art will readily understand that the above advantageous modes can be freely combined and superimposed without conflict.

[0080] The above is only a preferred embodiment of the present application, and is not intended to limit the present application. Any modification, equivalent replacement and improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application. The above is only a preferred embodiment of the present application, and is not intended to limit the present application. Any modification, equivalent replacement and improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. An optical film visual intelligent detection device, characterized in that: include: A base (1), the top of the base (1) is fixedly connected to a support frame (2), the interiors of the two support frames (2) are rotatably connected to a reeling roller (4) and a reeling roller (3), a mounting frame (5) is fixedly connected between the tops of the two support frames (2), and the mounting frame (5) is arranged in a trapezoidal shape; Both ends of the inner side wall of the mounting frame (5) are provided with guide components (6) for guiding the conveyance of the optical film and increasing the conveyance tension of the optical film; A control component (7) is also provided on the inner side wall of the mounting frame (5) and located on the side of the guide component (6), for controlling the tension of the optical film during transportation; An irradiation lamp (9) and a camera (10) are respectively fixedly mounted on the mounting frame (5) via a connecting piece (8).

2. The optical film visual intelligent detection device according to claim 1, characterized in that: The guide assembly (6) includes a cross bar (11), which is fixedly connected between two opposite side walls in the mounting frame (5), and springs (12) are fixedly connected to the top ends of the cross bar (11), and a sliding support block (13) is fixedly connected to the top of the spring (12), and the bottom of the sliding support block (13) is set in a U shape. The bottom of the sliding support block (13) is sleeved on the cross bar (11) and is slidably connected to the cross bar (11), and a guide roller (14) is rotatably connected between the tops of the two sliding support blocks (13).

3. The optical film visual intelligent detection device according to claim 2, characterized in that: Two opposite side walls of the two sliding support blocks (13) are each provided with an inner concave hole (15), a limiting torsion spring (16) is fixedly connected in the inner concave hole (15), a limiting shaft (17) is rotatably connected between the two limiting torsion springs (16), both ends of the outer peripheral side of the limiting shaft (17) are fixedly connected to support rods (18), a limiting shaft (19) is rotatably connected between the ends of the two support rods (18), and a gap is left between the outer peripheral side of the limiting shaft (19) and the guide roller (14).

4. The optical film visual intelligent detection device according to claim 1, characterized in that: The control assembly (7) includes two fixed blocks (20), which are respectively fixedly connected to two opposite sides of the mounting frame (5), and a rotating rod (21) is rotatably connected between the bottoms of the opposite sides of the two fixed blocks (20).

5. The optical film visual intelligent detection device according to claim 4, characterized in that: A rotating shaft (22) is rotatably connected to the middle of one side of each of the two fixed blocks (20), and a shifting rod (23) is inserted into and fixedly connected to the end of the rotating shaft. The shifting rod (23) is tilted and its bottom side is in contact with the top edge of the corresponding sliding support block (13). A pressing shaft (24) is rotatably connected between the ends of the two shifting rods (23), and an auxiliary part (25) is provided between the rotating shaft (22) and the corresponding fixed block (20).

6. The optical film visual intelligent detection device according to claim 5, characterized in that: The auxiliary member (25) includes an auxiliary groove (26), which is opened in the middle of the side of the fixed block (20), and an auxiliary torsion spring (27) is fixedly connected in the auxiliary groove (26), and the end of the auxiliary torsion spring (27) is fixedly connected to the corresponding rotating shaft (22).

7. The optical film visual intelligent detection device according to claim 1, characterized in that: The connecting member (8) includes two gantry brackets (28), which are arranged on the top side wall and the top bottom side wall of the mounting frame (5) through a balancing member. The irradiation lamp (9) is fixedly installed on the inner bottom side wall of the gantry bracket (28) located below, and the camera (10) is fixedly installed on the inner top side wall of the gantry bracket (28) located above.

8. The optical film visual intelligent detection device according to claim 3, characterized in that: An annular groove (29) is provided at the outer peripheral end of the limiting shaft (19), an airbag ring (30) is fixedly connected in the annular groove (29), the outer peripheral side of the airbag ring (30) is in contact with the outer peripheral side of the guide roller (14), and two rotating disks (31) are fixedly connected to the outer peripheral side of the rotating rod (21), and the two rotating disks (31) are respectively located at the two ends of the rotating rod (21) and respectively correspond to the end positions corresponding to the guide roller (14).

9. The optical film visual intelligent detection device according to claim 4, characterized in that: The balancing member (39) includes an upper groove (32) and a lower groove (33), the upper groove (32) is opened at the top of the side of the mounting frame (5), and the lower groove (33) is opened at the bottom of the side of the mounting frame (5), and a docking rod (34) is fixedly connected between the ends of the two gantry brackets (28), and the docking rod (34) passes through the bottom side wall of the upper groove (32) and is slidably connected to the bottom side wall of the upper groove (32), an upper support spring (35) is fixedly connected to the bottom side wall of the upper groove (32), and a lower support spring (36) is fixedly connected to the bottom side wall of the lower groove (33), wherein the upper support spring (35) and the lower support spring (36) are respectively fixedly connected to the ends of the corresponding gantry brackets (28); A toggle frame (37) is fixedly connected to the inner side wall of the gantry frame, and both ends of the toggle frame (37) close to the toggle rod (23) are provided with a push rod (38), the end of the push rod (38) is fixedly connected to the toggle rod (23), and the side of the push rod (38) close to the toggle frame (37) is fitted with the toggle frame (37).

10. A method for intelligent visual detection of optical films, characterized in that: The optical film visual intelligent detection device for any one of claims 1 to 9 comprises the following steps: S101: The optical film is unwound from the unwinding roller (4) to the reeling roller (3), and passes through the guide assembly (6) and the control assembly (7); S102: When passing through the guide assembly (6), the optical film is tightened and pressure is applied to the guide assembly (6); S103: The tension of the optical film increases, and the guide component (6) pushes the optical film to reduce its shaking amplitude; S104: As the tension of the optical film changes during transportation, the thrust of the guide component (6) changes, and the control component (7) cooperates to further apply pressure; S105: the control component (7) changes as the pressure applied by the guide to the optical film changes; S106: Finally, the optical film is kept in a taut state at all times to reduce the shaking amplitude of the optical film.

Images