RFID antenna slitting deviation detection system

Abstract

The utility model discloses an RFID antenna slitting deviation detection system, which comprises a detection device and a backlight source device, the detection device comprises a sliding mechanism and an industrial camera, the sliding mechanism is arranged adjacent to a slitting cutter shaft of a slitting machine, the industrial camera is connected with the sliding mechanism, the sliding mechanism is used for adjusting the position of the industrial camera along the axial direction of the cutter shaft, and the backlight source device is used for detecting the position of the industrial camera. The industrial camera is used for shooting an image of the RFID antenna after slitting and before rolling, the controller is used for receiving an image signal shot by the industrial camera and measuring the distance from the edge of the RFID antenna to a graph, the backlight source device is arranged on the other side of the RFID antenna relative to the industrial camera, and the backlight source device is used for providing a detection light source for the industrial camera. Through the cooperation of the detection device and the backlight source device, the function of automatically detecting the slitting position of the RFID antenna is achieved, and therefore the detection precision and the working efficiency are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of RFID antenna production, in particular to an RFID antenna slitting and deviation detection system. Background Art

[0002] Slitting RFID antennas is a crucial step in the production process. Its accuracy and efficiency are directly linked to the quality of the final product and the overall effectiveness of the production line. Currently, RFID antennas are primarily cut using slitting machines. This step ensures that the antennas are cut to predetermined sizes and specifications, laying the foundation for subsequent rewinding.

[0003] However, after the RFID antennas are cut and before they are rewound, manual inspection is still required to verify the accuracy of the cuts, especially to confirm whether there are any cut offset issues. Unfortunately, this manual inspection method cannot fully ensure that all cut offset issues are identified in real time during the production process.

[0004] Currently, post-slicing inspection of RFID antennas relies primarily on human visual inspection. Limited by viewing angles and subjective judgment, this inspection method typically only allows for side inspection after slicing. This makes it difficult to accurately detect even minor deviations in the slit edges, increasing the risk of missed inspections. Furthermore, manual inspection is inefficient, extending production cycles and increasing costs. Utility Model Content

[0005] The embodiments of the present application provide an RFID antenna slitting and deviation detection system to solve the technical problems of missed detection and low efficiency in manual detection.

[0006] The present application provides an RFID antenna slitting and misalignment detection system, comprising:

[0007] The detection device is provided in the slitting machine of the RFID antenna and includes:

[0008] A sliding mechanism is arranged adjacent to the slitting knife shaft of the slitting machine;

[0009] an industrial camera connected to the sliding mechanism, wherein the sliding mechanism is used to adjust the position of the industrial camera along the axial direction of the knife shaft, and the industrial camera is used to capture an image of the RFID antenna after slitting and before winding;

[0010] A controller, configured to receive an image signal captured by the industrial camera and measure a distance from an edge of the RFID antenna to a pattern;

[0011] A backlight device is arranged on the other side of the RFID antenna relative to the industrial camera, and is used to provide a detection light source for the industrial camera.

[0012] The beneficial effect of the above embodiment is that the detection device and the backlight device cooperate to detect the cutting position of the RFID antenna after cutting, thereby realizing the function of automatically detecting the cutting position, thereby improving the detection accuracy and work efficiency.

[0013] Based on the above embodiment, the embodiment of the present application can also be improved as follows:

[0014] In one embodiment of the present application, the invention further comprises an angle adjustment mechanism connected to the sliding mechanism for adjusting the angle position of the industrial camera. The beneficial effect of this step is that the angle adjustment mechanism facilitates adjustment of the camera head direction of the industrial camera, thereby improving detection accuracy.

[0015] In one embodiment of the present application, the device further includes a height adjustment mechanism connected to the angle adjustment mechanism for adjusting the distance between the industrial camera and the RFID antenna. This step has the beneficial effect of facilitating adjustment of the distance between the camera head of the industrial camera and the RFID antenna through the height adjustment mechanism, thereby improving detection accuracy.

[0016] In one embodiment of the present application, a protective device is further provided between the knife shaft and the industrial camera. The beneficial effect of this step is that the protective device prevents the knife shaft from falling and hitting the industrial camera, thereby improving the protection performance of the industrial camera.

[0017] In one embodiment of the present application, the device further comprises an alarm device electrically connected to the controller for outputting an alarm signal. The beneficial effect of this step is that a prompt signal can be sent to the staff in a timely manner. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following briefly describes the drawings required for the specific embodiments or the description of the prior art. Similar elements or parts are generally identified by similar reference numerals throughout the drawings. Elements or parts in the drawings are not necessarily drawn to scale.

[0019] Figure 1 This is a structural diagram of the RFID antenna cutting deviation detection system;

[0020] Figure 2 It is a schematic diagram of the front structure of the detection device;

[0021] Figure 3 A schematic diagram of the side structure of the detection device.

[0022] Among them, 1 detection device, 101 sliding mechanism, 102 industrial camera, 103 guide rod, 104 slider, 105 angle adjustment mechanism, 106 rotating seat, 107 height adjustment mechanism, 108 adjustment seat, 109 protective plate;

[0023] 2 backlight device, 201 connecting rod, 202 connecting plate, 203 LED backlight;

[0024] 3 knife shafts;

[0025] 4 protective devices, 401 protective rods. DETAILED DESCRIPTION

[0026] In this application, unless otherwise specified or limited, the terms used in this application should be understood in a broad sense. For example, a connection can be a fixed connection, a detachable connection, or an integrated connection. It can be a direct connection or an indirect connection through an intermediate medium. If it involves power or electronic equipment, it can also be an electrical connection or a communication signal connection. For those skilled in the art, the specific meanings of different terms in this utility model can be understood according to specific circumstances. The scope of the specific meanings should be limited to achieving the functions of this application.

[0027] In the description of this application, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0028] like Figure 1-3 As shown, an RFID antenna slitting deviation detection system includes: a detection device 1 and a backlight device 2. The detection device 1 is arranged in the slitting machine of the RFID antenna. The detection device 1 includes: a sliding mechanism and an industrial camera 101. The sliding mechanism is arranged adjacent to the slitting knife shaft 3 of the slitting machine. The industrial camera 101 is connected to the sliding mechanism. The sliding mechanism is used to adjust the position of the industrial camera 101 along the axial direction of the knife shaft 3. The industrial camera 101 is used to capture the image of the RFID antenna after slitting and before winding. The controller is used to receive the image signal captured by the industrial camera 101 and measure the distance from the edge of the RFID antenna to the graphic. The backlight device 2 is arranged on the other side of the RFID antenna relative to the industrial camera 101. The backlight device 2 is used to provide a detection light source for the industrial camera 101.

[0029] In some embodiments of the present application, Figure 1-3 As shown, the sliding device includes: a guide rod 102 and a slider 103. The guide rod 102 is arranged below the knife shaft 3 in a direction parallel to the knife shaft 3. Both ends of the guide rod 102 can be connected to the frame of the slitting machine, or to the wall or an external separately configured bracket. There are two guide rods 102, and the slider 103 is equipped with two guide sleeves corresponding to the guide rods 102. The guide sleeves are slidably mounted on the guide rod 102, so that the position of the industrial camera 101 along the axial direction of the knife shaft 3 can be adjusted, thereby adjusting the industrial camera 101 to a suitable detection position.

[0030] In some embodiments of the present application, the sliding device also includes: a positioning member, the positioning member has a threaded connection end, the positioning member can be a standard part such as a bolt, a screw or a screw, or it can be a homemade threaded member, the positioning member is threadedly connected to the slider 103, when the threaded end of the positioning member presses the surface of the guide rod 102, the slider 103 is stably positioned on the guide rod 102, when the positioning member is separated from the guide rod 102, the slider 103 can be manually pushed to move along the guide rod 102, thereby changing the position of the slider 103.

[0031] In some embodiments of the present application, Figure 3 As shown, the RFID antenna slitting deviation detection system also includes an angle adjustment mechanism connected to the sliding mechanism, and the angle adjustment mechanism is used to adjust the angle position of the industrial camera 101. The angle adjustment mechanism facilitates the adjustment of the camera head direction of the industrial camera 101, thereby improving detection accuracy.

[0032] In some embodiments of the present application, Figure 3 As shown, the angle adjustment mechanism includes: a rotating seat 104, which has two rotating seats 104 and is rotatably connected to both sides of the slider 103 through a rotating shaft. The industrial camera 101 is connected to the rotating seat 104. A plurality of threaded holes for positioning are provided on the surface of the slider 103. The rotating seat 104 has four waist-shaped adjustment holes located on the same circumference around the rotation axis corresponding to the threaded holes. The bolts pass through the adjustment holes and are connected to the threaded holes, thereby positioning the rotating seat 104, that is, positioning the industrial camera 101 at a certain angle. When the industrial camera 101 needs to be rotated again, it is only necessary to loosen the connecting bolts.

[0033] In some embodiments of the present application, Figure 3 As shown, the RFID antenna slitting deviation detection system also includes a height adjustment mechanism connected to the angle adjustment mechanism. The height adjustment mechanism is used to adjust the distance between industrial camera 101 and the RFID antenna. The height adjustment mechanism facilitates adjusting the distance between the camera head of industrial camera 101 and the RFID antenna, thereby improving detection accuracy.

[0034] In some embodiments of the present application, Figure 2 、 3 As shown, the height adjustment mechanism includes: an adjustment seat 105, waist-shaped holes are opened on both sides of the adjustment seat 105, and corresponding threaded holes are opened on the surface of the rotating seat 104 corresponding to the waist-shaped holes. The bolts pass through the waist-shaped holes and are connected to the threaded holes, so that the adjustment seat 105 is installed on the rotating seat 104 in an adjustable height, and the industrial camera 101 is installed on the adjustment seat 105.

[0035] In some embodiments of the present application, Figure 1 、 3 As shown, the RFID antenna slitting deviation detection system further includes a protective device 4, which is arranged between the cutter shaft 3 and the industrial camera 101. The protective device 4 prevents the cutter shaft 3 from falling and hitting the industrial camera 101, thereby improving the protection performance of the industrial camera 101.

[0036] In some embodiments of the present application, Figure 1 、 3 As shown, the protective device 4 includes: two protective rods located below the knife shaft 3, the industrial camera 101 is located below the protective rods, and the protective rods are fixedly connected to the frame of the slitting machine or connected to the wall of the factory building, so that the protective rods have sufficient strength.

[0037] In some embodiments of the present application, Figure 3 As shown, a protective plate 106 is provided at the front end of the adjustment seat 105 , and the head of the industrial camera 101 extends upward through the protective plate 106 . The protective plate 106 is arranged adjacent to the protective rod, and the protective plate 106 also plays a protective role for the industrial camera 101 .

[0038] In some embodiments of the present application, the industrial camera 101 adopts a 5-megapixel CCD industrial camera, and the camera is equipped with a telecentric lens. The detection medium of the industrial camera 101 is PET, paper or white film and other materials for attaching RFID antennas, and the detection method is to measure the distance from the edge to the pattern; the controller adopts a Keyence vision controller, the controller has a detection accuracy of 0.05mm, a detection range of 0.05-21mm, and a detection speed of 60m / min. A comparison template is preset in the controller, and the controller compares the image information of the RFID antenna taken by the industrial camera 101 with the template to determine whether the cutting position is in the correct range.

[0039] In some embodiments of the present application, Figure 1As shown, the backlight device 2 includes: a connecting rod 201, a connecting plate 202, and an LED backlight source 203. The connecting rod 201 is connected to the frame of the slitting machine or other fixed positions, the LED backlight source 203 is connected to the connecting plate 202, and the connecting plate 202 is connected to the connecting rod 201 by bolts. The LED backlight source 203 is arranged on the side of the knife shaft 3, and the LED backlight source 203 is arranged in the direction of the industrial camera 101. The LED backlight source 203 provides sufficient light source brightness for the normal operation of the industrial camera 101.

[0040] In some embodiments of the present application, the RFID antenna slitting deviation detection system also includes: an alarm device, the alarm device is electrically connected to the controller, the alarm device is used to output an alarm signal, the alarm device uses an audible and visual alarm, when the cutting position is incorrect, the audible and visual alarm can promptly send an alarm signal to the staff, at the same time, the controller controls the slitting machine to stop working, so that the operator can carry out timely maintenance, thereby improving work efficiency and reducing the scrap rate.

[0041] The RFID antenna slitting and deviation detection system has the following advantages:

[0042] 1. No need to stop the machine during detection, online full-process detection is achieved, and the production efficiency of the slitting machine is improved;

[0043] 2. When detecting abnormal dimensions, prompt reminders and output alarm signals are given in time to reduce product scrap and abnormality rates and improve the yield rate of slitting;

[0044] 3. The controller can store and record the number of defective antenna cuts in the entire roll, which is convenient for counting cutting abnormalities;

[0045] 4. Due to real-time online measurement, there is no need to re-inspect the cutting deviation, which greatly reduces labor costs.

[0046] The above are only embodiments of the present invention. Common knowledge such as the known specific structures and characteristics in the scheme is not described in detail here. Ordinary technicians in the relevant field are aware of all common technical knowledge in the technical field of the utility model before the application date or priority date, can obtain all existing technologies in the field, and have the ability to apply conventional experimental means before that date. Ordinary technicians in the relevant field can improve and implement this scheme based on their own abilities under the guidance of this application. Some typical known structures or methods should not become obstacles for ordinary technicians in the relevant field to implement this application. It should be pointed out that for those skilled in the art, without departing from the structure of the utility model, they can also make several variations and improvements, which should also be regarded as the scope of protection of the utility model. These will not affect the effect of the implementation of the utility model and the practicality of the patent.

Claims

1. An RFID antenna cutting deviation detection system, characterized in that: include: The detection device is provided in the slitting machine of the RFID antenna and includes: A sliding mechanism is arranged adjacent to the slitting knife shaft of the slitting machine; an industrial camera connected to the sliding mechanism, wherein the sliding mechanism is used to adjust the position of the industrial camera along the axial direction of the knife shaft, and the industrial camera is used to capture an image of the RFID antenna after slitting and before winding; A controller, configured to receive an image signal captured by the industrial camera and measure a distance from an edge of the RFID antenna to a pattern; A backlight device is arranged on the other side of the RFID antenna relative to the industrial camera, and is used to provide a detection light source for the industrial camera.

2. The RFID antenna cutting deviation detection system according to claim 1 is characterized in that: Also includes: An angle adjustment mechanism is connected to the sliding mechanism and is used to adjust the angle position of the industrial camera.

3. The RFID antenna cutting deviation detection system according to claim 2, characterized in that: Also includes: A height adjustment mechanism is connected to the angle adjustment mechanism and is used to adjust the distance between the industrial camera and the RFID antenna.

4. The RFID antenna cutting deviation detection system according to claim 1, characterized in that: Also includes: A protective device is arranged between the knife shaft and the industrial camera.

5. The RFID antenna slitting deviation detection system according to claim 1, characterized in that: Also includes: An alarm device is electrically connected to the controller and is used to output an alarm signal.

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