A reflective film production device with an online detection device

Abstract

The present invention relates to the field of reflective film production equipment, and provides a reflective film production equipment with an online detection device, including a conveying system for conveying the reflective film, the reflective film production equipment is provided with an online detection device located downstream of a reflective film flame retardant layer coating station, the online detection device includes a detection device body, the detection device body includes a detection frame, the detection frame is provided with a bottom lighting lamp board facing the bottom surface of the reflective film, and one side of the detection frame is provided with a side lighting device facing the side of the reflective film. The reflective film production equipment with an online detection device provided by the present invention has good detection effect and high detection efficiency, and the online detection device has low application cost, and can also be easily modified and added to the current production line, and is easy to promote and use.

Description

Technical Field

[0001] The invention belongs to the field of reflective film production equipment, and in particular relates to reflective film production equipment with an online detection device. Background Art

[0002] In current reflective film production equipment, the reflective film is mostly tested by sampling, that is, the reflective film of appropriate size is cut on the production line and placed in the testing equipment in the testing room for testing. This testing method has low testing efficiency and the problem of incomplete testing exists in this sampling testing method, which may cause unqualified reflective film to flow into the next production link, which is not conducive to quality control. Summary of the invention

[0003] The object of the present invention is to overcome at least one of the above-mentioned deficiencies of the prior art and to provide a reflective film production device with an online detection device, which has good detection effect, is conducive to product quality control, and has low application cost.

[0004] The technical solution of the present invention is: a reflective film production equipment with an online detection device, including a conveying system for conveying the reflective film, the reflective film production equipment is provided with an online detection device located downstream of the reflective film flame retardant layer coating station, the online detection device includes a detection device body, the detection device body includes a detection frame, the detection frame is provided with a bottom lighting panel facing the bottom surface of the reflective film, and one side of the detection frame is provided with a side lighting device facing the side of the reflective film.

[0005] Specifically, the detection frame has a transparent supporting plate, and the bottom surface of the reflective film is in contact with the supporting plate.

[0006] Specifically, the side lighting device is provided with a light strip whose bottom is flush with the surface of the support plate.

[0007] Specifically, the side lighting device is provided with a light slit adjustment device.

[0008] Specifically, the light slit adjustment device comprises an adjustment plate whose bottom is adjustable from the surface of the support plate, and the adjustment plate is connected to an adjustment mechanism.

[0009] Specifically, the adjustment mechanism includes a screw rod, and the screw rod is threadedly connected to the top of the adjustment plate.

[0010] Specifically, a flange is connected to the top of the screw.

[0011] Specifically, the bottom lighting panel and the side lighting device are connected with a brightness control module.

[0012] Specifically, the adjusting mechanism comprises a motor, and the motor is connected to the screw rod.

[0013] Specifically, a film cutting component for cutting the reflective film is provided downstream of the online detection device.

[0014] The present invention provides a reflective film production equipment with an online detection device. The bottom lighting panel 920 and the side lighting device illuminate the reflective film from two directions simultaneously or in different time periods. When cracks, unevenness, glue deficiency, etc. may occur in the reflective film body itself or the flame retardant layer coating, they can be easily identified under the light shadow. The detection effect is good and the detection efficiency is high. This online full inspection method can effectively prevent unqualified reflective films from flowing into the next production link, or mark the unqualified sections to cut off and remove the defective sections in the next process. It has good reliability and low application cost of the online detection device. It can also be easily modified and added to the current production line, and is easy to promote and use. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 It is a plan view of a reflective film production device with an online detection device provided by an embodiment of the present invention;

[0017] Figure 2 It is a stereoscopic diagram of an online detection device (with a reflective film) in a reflective film production device with an online detection device provided by an embodiment of the present invention;

[0018] Figure 3 It is a stereoscopic diagram of an online detection device (without a reflective film) in a reflective film production device with an online detection device provided by an embodiment of the present invention;.

[0019] Figure 4 is another stereoscopic view of an online detection device (with a reflective film) in a reflective film production device with an online detection device provided by an embodiment of the present invention;

[0020] Figure 5 It is a plan view schematic diagram of an online detection device (without a reflective film) in a reflective film production device with an online detection device provided in an embodiment of the present invention. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0022] It should be noted that the terms “setting” and “connecting” should be understood in a broad sense. For example, it can be directly setting or connecting, or it can be indirectly setting or connecting through a central component or a central structure.

[0023] like Figures 1 to 5 As shown, a reflective film production device with an online detection device provided by an embodiment of the present invention includes a conveying system for conveying the reflective film, and the reflective film production device is provided with an online detection device 900 (detection component) located downstream of the reflective film flame retardant layer coating station, that is, after the flame retardant layer coating is coated on the front of the reflective film (substrate), the flame retardant layer coating is cured, that is, after passing through the online detection device 900, the online detection device 900 can be used to detect the integrity of the flame retardant layer coating to prevent the reflective film with failed flame retardant layer coating from flowing into the next process. The online detection device 900 includes a detection device body, and the detection device body includes a detection frame 910, and the detection frame 910 is provided with a bottom lighting lamp board 920 facing the bottom surface of the reflective film, and a side lighting device 930 facing the side of the reflective film is provided on one side of the detection frame 910. The bottom lighting panel 920 and the side lighting device 930 illuminate the reflective film from two directions simultaneously or in different time periods. When the reflective film body itself or the flame retardant layer coating has cracks, unevenness, glue deficiency and other problems, they can be easily identified by the naked eye under the light shadow, with good detection effect and high detection efficiency. This online full inspection method can effectively prevent unqualified reflective films from flowing into the next production link, or mark the unqualified sections to cut off and remove the defective sections in the next process. It has good reliability, and the application cost of the online detection device 900 is low. It can also be easily modified and added to the current production line, and is easy to promote and use.

[0024] In specific applications, a first imaging device (CCD camera) facing the front of the reflective film can be arranged above the online detection device 900. The first imaging device can automatically detect the quality of the flame retardant layer coating by image recognition. When the flame retardant layer coating may have cracks, unevenness, or lack of glue, it forms an obvious image, which is easy to identify and analyze. In particular, the bottom lighting panel 920 and the side lighting device 930 provide supplementary light from the bottom and side, making the image recognition and analysis more obvious. The first imaging device is connected to a recognition module, and the recognition module can be preset with a standard image corresponding to a defect-free reflective film. The first imaging device can efficiently and accurately identify the defects of the reflective film by comparing the acquired image with the standard image. In specific applications, the bottom lighting panel 920 and the side lighting device 930 can be lit at different times (the bottom lighting panel 920 and the side lighting device 930 are not lit at the same time), and the light is irradiated on the reflective film from the bottom and side, respectively. Of course, the bottom lighting panel 920 and the side lighting device 930 can also be lit at the same time, and the brightness of the bottom lighting panel 920 can be lower than that of the side lighting device 930. The detection frame 910 may be provided with a light shield above the online detection device 900, and a light absorbing coating may be provided inside the light shield. The light shield may be covered outside the entire detection device body (including the first imaging device), and is suitable for the scheme of visual imaging detection.

[0025] Specifically, the detection frame 910 has a transparent support plate 940, and the bottom surface of the reflective film is in contact with the support plate 940. The support plate 940 can be a glass plate, and a sealing shell 950 is provided on the bottom surface of the support plate 940, and the sealing shell 950 and the bottom surface of the support plate 940 form a sealed cavity. The bottom lighting lamp board 920 is located in the sealed cavity to prevent dust from entering. The bottom lighting lamp board 920 can be an integrated LED lamp board, and its color temperature and brightness can be adjusted. The area of ​​the LED lamp board is not less than the area of ​​the glass plate, that is, there is no dark area on the glass plate, and the detection effect is good.

[0026] Specifically, the side lighting device 930 is provided with a light strip whose bottom is flush with the surface of the support plate 940. The light strip can be an LED light strip. The LED light strip can be connected to a brightness adjustment module and a color temperature adjustment module. The color temperature and brightness of the LED light strip can be adjusted.

[0027] Specifically, the side lighting device 930 is provided with a light slit adjustment device to prevent the light slit from being too large and affecting the recognition. In the side lighting mode, the light is significantly refracted at the longitudinal cracks of the reverse film, making the longitudinal cracks of the reverse film and other defects easier to be found or recognized by the CDD camera. The light emitting side of the side lighting device 930 can be provided with a focusing prism, which can be a convex lens, which can be arranged in a strip shape to converge the light in the direction of the light slit.

[0028] Specifically, the light slit adjustment device includes an adjustment plate 961 whose bottom distance from the surface of the support plate 940 is adjustable. The adjustment plate 961 is connected to an adjustment mechanism, which is used to drive the adjustment plate 961 to rise and fall to adjust the gap S of the light slit to prevent the light slit from being too large and affecting detection.

[0029] Specifically, the main body of the adjustment plate 961 is rectangular, and a light-absorbing coating is provided on the inner surface thereof to reduce the influence of reflected light.

[0030] Specifically, an up-and-down sliding guide structure is provided between the adjustment plate 961 and the side lighting device 930 , so that the adjustment plate 961 is convenient.

[0031] Specifically, the top of the detection frame 910 is in an inclined shape, that is, the support plate 940 is at an angle to the horizontal plane, so that the detection personnel can observe the reflective film on the support plate 940 that is illuminated by backlight and sidelight. The upper and lower ends of the support plate 940 are provided with transmission roller groups so that the reflective film can be transferred against the support plate 940. The first imaging device can be arranged perpendicular to the horizontal plane, with good imaging effect and not easy to reflect light. The angle between the support plate 940 and the bottom lighting lamp board 920 and the horizontal plane can be 30 to 75 degrees.

[0032] Specifically, the adjustment mechanism includes a screw 962, which is threadedly connected to the top of the adjustment plate 961. The screw 962 rotates to lift the adjustment plate 961 through the screw transmission principle. A lifting guide structure is provided between the adjustment plate 961 and the housing of the side lighting device 930.

[0033] Specifically, a flange 963 is connected to the top of the screw rod 962, which is convenient for operators to operate.

[0034] Specifically, the bottom lighting panel 920 and the side lighting device 930 may be connected to a brightness control module.

[0035] Specifically, the adjustment mechanism includes a motor, and the motor is connected to the screw rod 962 to achieve automatic adjustment.

[0036] Specifically, a film cutting component for cutting the reflective film is arranged downstream of the online detection device 900. The conveying system (a plurality of groups of transmission roller assemblies arranged along the production line) conveys the reflective film to the winding component at a first speed along the production line, and the film cutting component is used to cut the reflective film; the detection component, the film cutting component and the winding component are arranged in sequence. The film cutting component includes a laser component arranged above the conveying system, and the automatic winding device also includes a linear guide rail arranged along the conveying direction of the reflective film, the laser component is slidably connected to the linear guide rail, and the laser component is also connected to a linear drive component for driving the laser component to slide along the linear guide rail at a first speed. The laser component cuts the reflective film transversely by emitting laser light, and because the laser component is slidably connected to the linear guide rail, during the cutting process, the laser component slides along the linear guide rail at a first speed (constant speed), and there is no need to set a brake component to suspend the transmission of the reflective film, that is, there is no need to stop the transmission system. The automatic winding device can cut the reflective film by laser during the normal transmission of the reflective film, and the fracture of the reflective film is flush, avoiding the defect caused by the pulling of the cutter, with high production efficiency and no effect on the quality of the reflective film. A debris collector can be provided on one or both sides of the transmission system. The debris collector is in the shape of a shell and has an opening facing the side of the reflective film to collect debris generated when the laser cuts the reflective film, so as to avoid the debris adhering to the reflective film and affecting the quality of the reflective film. The debris collector can be connected to a vacuum tube (negative pressure tube), and the debris is collected in the debris collector during the film cutting process by using negative pressure.

[0037] Specifically, the detection frame 910 may be provided with a label printing component. The label printing component may be connected to the main control module. When a defect is detected, the label printing component may print a set label at the start and end positions of the defective segment in the reflective film. For example, a label strip (about 5 mm in length and about 0.2 mm in width) of a set color may be printed on the reflective film, and the colors of the label strips at the start and end positions of the defective segment may be different. The label printing component may be arranged close to the downstream of the production line (film cutting component).

[0038] The embodiment of the present invention provides a reflective film production equipment with an online detection device. Through the bottom lighting panel 920 and the side lighting device 930, simultaneous or time-sharing illumination is performed from two directions. When cracks, unevenness, glue deficiency and other problems that may occur in the flame retardant layer coating are easily identified by the naked eye (automatic detection can also be performed by imaging visual detection). The detection effect is good and the detection efficiency is high. In addition, this online full-inspection detection method can effectively prevent unqualified reflective films from flowing into the next production link, or mark the unqualified sections so as to cut and remove the defective sections in the next process, and has good reliability.

[0039] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modification, equivalent substitution or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A reflective film production device with an online detection device, characterized in that: The invention comprises a conveying system for conveying a reflective film, wherein the reflective film production equipment is provided with an online detection device located downstream of a flame retardant coating station of the reflective film, wherein the online detection device comprises a detection device body, wherein the detection device body comprises a detection frame, wherein the detection frame is provided with a bottom lighting panel facing the bottom surface of the reflective film, and a side lighting device facing the side surface of the reflective film is provided on one side of the detection frame; the detection frame has a transparent supporting plate, and the bottom surface of the reflective film is abutted against the supporting plate; the side lighting device is provided with a light strip whose bottom is flush with the surface of the supporting plate; a first imaging device facing the front surface of the reflective film is provided above the online detection device; the first imaging device is connected with a recognition module, and the recognition module is connected with the first imaging device ... The module is preset with a standard image corresponding to a defect-free reflective film. The first imaging device compares the acquired image with the standard image; the bottom lighting panel and the side lighting device are lit at different times, and the light is irradiated to the reflective film from the bottom and the side respectively. The supporting plate is a glass plate, and a sealing shell is provided on the bottom of the supporting plate. The sealing shell and the bottom of the supporting plate form a sealed cavity. The bottom lighting panel is located in the sealed cavity. The bottom lighting panel is an integrated LED panel, and its color temperature and brightness can be adjusted. The area of ​​the LED panel is not less than the area of ​​the glass plate; the side lighting device is provided with a light slit adjustment device to avoid the light slit being too large to affect the recognition; the light slit adjustment device includes an adjustment plate whose bottom distance from the surface of the supporting plate is adjustable, and the The adjustment plate is connected to an adjustment mechanism, which is used to drive the adjustment plate to rise and fall so as to adjust the gap of the light slit. The main body of the adjustment plate is rectangular, and a light-absorbing coating is provided on its inner surface. The top of the detection frame is in the shape of an inclined plane, and the support plate is at an angle to the horizontal plane. Transmission roller groups are provided at both the upper and lower ends of the support plate. The first imaging device is arranged perpendicular to the horizontal plane, and the angle between the support plate and the bottom lighting plate and the horizontal plane is 30 to 75 degrees. A film cutting component for cutting off the reflective film is provided downstream of the online detection device, and the conveying system conveys the reflective film to the winding component at a first speed along the production line, and the film cutting component is used to cut off the reflective film. The detection component, the film cutting component and the winding component are arranged in sequence, and the film cutting component includes a setting The laser component is located above the conveying system, and the reflective film production equipment also includes a linear guide rail arranged along the conveying direction of the reflective film. The laser component is slidably connected to the linear guide rail. The laser component is also connected to a linear driving component for driving the laser component to slide along the linear guide rail at a first speed. The laser component emits laser to cut the reflective film laterally. Since the laser component is slidably connected to the linear guide rail, during the cutting process, the laser component slides along the linear guide rail at a first speed. The detection frame is provided with a marking printing component, and the marking printing component is connected to the main control module. When a defect is detected, the marking printing component prints a set mark at the starting and ending positions of the defective segment in the reflective film.

2. The reflective film production equipment with an online detection device according to claim 1, characterized in that: The adjusting mechanism comprises a screw rod, and the screw rod is threadedly connected to the top of the adjusting plate.

3. The reflective film production equipment with an online detection device as claimed in claim 2, characterized in that: The top of the screw is connected with a flange.

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