A rotating device and method for marking the front and back sides of a flexible circuit board

Abstract

This application relates to the field of circuit board manufacturing technology, and in particular to a rotary device and method for marking the front and back sides of flexible circuit boards. The device includes: a support frame, connecting rods, rotary servo motors, fixed clamping bars, a first tension cylinder, movable clamping bars, and a control base unit. The support frame includes a first support rod and a second support rod; one end of each connecting rod is connected to the center point of the first support rod; the rotary servo motors are connected to the other ends of each connecting rod; the fixed clamping bars are fixedly connected to the second support rod; one end of the first tension cylinder is fixedly connected to the second support rod; the movable clamping bars are fixedly connected to the other ends of the first tension cylinder; the control base unit includes a first control base and a second control base, which are respectively connected to two rotary servo motors. This application can improve marking accuracy and product quality, reduce manual operation, and increase work efficiency.

Description

Technical Field

[0001] This application relates to the field of circuit board manufacturing technology, and in particular to a rotating device and method for marking the front and back sides of a flexible circuit board. Background Technology

[0002] In related technologies, flexible circuit boards (PCBs) are widely used in various fields due to their excellent characteristics such as light weight, thinness, and free bending and folding. Marking, as a key step in the PCB production process, aims to provide clear, accurate, and permanent identification for products, encompassing various information such as text, symbols, patterns, QR codes, or barcodes. These markings play an indispensable role in product identification, traceability, quality control, and market circulation. In existing technologies, double-sided marking of PCBs of different sizes cannot be completed simultaneously. After marking one side, the PCB must be manually removed, flipped, and positioned before marking the second side. This not only greatly increases the labor intensity of operators but also easily leads to inaccurate positioning due to human factors, causing marking position deviations that seriously affect marking accuracy and product quality. Consequently, this significantly increases equipment operating time and costs, hindering the improvement of production efficiency.

[0003] In summary, the technical problems existing in the relevant technologies need to be improved. Summary of the Invention

[0004] The main objective of this application is to provide a flexible circuit board front and back marking rotation device and method, which can improve marking accuracy and product quality, reduce manual operation, and improve work efficiency.

[0005] To achieve the above objectives, one aspect of this application provides a flexible circuit board front and back marking rotation device, comprising:

[0006] A support frame, the support frame comprising two first support rods and two second support rods, the first support rods and the second support rods being connected;

[0007] Two connecting rods are provided, and one end of each connecting rod is connected to the center point of the first support rod.

[0008] Two rotary servo motors are provided, and each rotary servo motor is connected to the other end of the connecting rod.

[0009] Two fixing clips are provided, and the fixing clips are respectively fixedly connected to the second support rod;

[0010] A first tension cylinder, one end of which is fixedly connected to the second support rod;

[0011] Two movable clamping bars are provided, and each movable clamping bar is fixedly connected to the other end of the first tensioning cylinder.

[0012] The control base unit includes a first control base and a second control base, the first control base and the second control base are respectively connected to the two rotary servo motors, and the control base unit is communicatively connected to the first tension cylinder.

[0013] In some embodiments, a safety buckle device is also included, which includes two second tension cylinders and four fixed slots. The two second tension cylinders are respectively connected to the two rotary servo motors, and the four fixed slots are respectively disposed on the first control base and the second control base. The second tension cylinders are communicatively connected to the control base unit.

[0014] In some embodiments, a safety bump is also included, wherein two sets of safety bumps are provided, respectively disposed between the first control base and the rotary servo motor and between the second control base and the rotary servo motor;

[0015] The safety bump includes a first bump, a second bump, and a third bump; two sets of the first bump and the second bump are respectively disposed on the connection surface of the first control base between the first control base and the rotary servo motor, and on the connection surface of the second control base between the second control base and the rotary servo motor; two sets of the third bump are respectively disposed on the connection surface of the rotary servo motor between the first control base and the rotary servo motor, and on the connection surface of the rotary servo motor between the second control base and the rotary servo motor.

[0016] In some embodiments, a third tension cylinder is further included. Two third tension cylinders are provided, each disposed inside one of the two first support rods. The two ends of the third tension cylinder are respectively connected to the second support rod, and the third tension cylinder is communicatively connected to the control base unit.

[0017] In some embodiments, each of the second support rods is fixedly connected to three of the first tension cylinders, wherein two of the first tension cylinders are respectively disposed at both ends of the second support rod near the first support rod, and the other first tension cylinder is disposed at the center point of the second support rod, and the length of the movable clamping bar is greater than the distance between the two first tension cylinders near the first tension cylinder.

[0018] In some embodiments, the first control base is communicatively connected to the second control base, and the second control base controls the rotation of the rotary servo motor according to the signal sent by the first control base.

[0019] In some embodiments, hydraulic lifting devices are respectively provided below the first control base and the second control base.

[0020] In some embodiments, an infrared laser blocking sensor is also included, which is disposed on the control base unit.

[0021] In some embodiments, a laser infrared counter is also included, which is disposed on the control base unit.

[0022] To achieve the above objectives, another aspect of this application proposes a method for marking and rotating the front and back sides of a flexible circuit board, applied to the aforementioned flexible circuit board marking and rotating device, comprising:

[0023] The flexible circuit board grasped by the robotic arm is placed at the positioning center point, so that the edge of the flexible circuit board falls on the fixed clamping bar;

[0024] The control base unit controls the first tension cylinder to push the movable clamping bar down, so that the fixed clamping bar and the movable clamping bar clamp the flexible circuit board.

[0025] After the front side of the flexible circuit board is marked, the control base unit controls the rotary servo motor to drive the connecting rod to rotate, so that the connecting rod drives the support frame to rotate 180°, and the back side of the flexible circuit board faces upward.

[0026] After the marking is completed on the reverse side of the flexible circuit board, the control base unit controls the rotary servo motor to drive the connecting rod to rotate, so that the connecting rod drives the support frame to rotate another 180°, and the front side of the flexible circuit board faces upward.

[0027] The control base unit controls the first stretching cylinder to lift the movable clamping bar, so that the movable clamping bar separates from the flexible circuit board, and waits for the robotic arm to pick up the flexible circuit board that has been marked on both sides.

[0028] The embodiments of this application include at least the following beneficial effects: This application provides a flexible circuit board front and back marking rotation device and method. This solution controls a first tension cylinder via a control base unit. The first tension cylinder drives a movable clamping bar, causing the fixed clamping bar and the movable clamping bar to clamp the flexible circuit board for front marking. The control base unit controls the rotation of a rotary servo motor, which drives a connecting rod, causing the connecting rod to transmit power to the support frame, thus rotating the flexible circuit board 180° for back marking, thereby achieving automatic front and back marking of the flexible circuit board. The flexible circuit board front and back marking rotation device replaces the traditional manual flipping process of the flexible circuit board, avoiding inaccurate positioning and marking position deviations caused by human factors, as well as the probability of contamination of the flexible circuit board. It improves marking accuracy and product quality, significantly reduces equipment operating time and costs, and effectively improves production efficiency. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of a flexible circuit board front and back marking rotation device provided in an embodiment of this application;

[0030] Figure 2 This is a schematic diagram of the structure of the fixing clip;

[0031] Figure 3 This is a structural diagram of the safety latch device;

[0032] Figure 4 This is a structural diagram of the safety bump;

[0033] Figure 5 This is a schematic diagram of the third tension cylinder;

[0034] Figure 6 This is a flowchart of a method for marking and rotating the front and back sides of a flexible circuit board according to an embodiment of this application;

[0035] Figure 7 This is a three-dimensional schematic diagram of a rotating device for marking the front and back sides of a flexible circuit board. Detailed Implementation

[0036] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of this application and are not intended to limit it. In the following description, when referring to the accompanying drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with those of this application; they are merely examples of apparatuses and methods consistent with some aspects of the embodiments of this application.

[0037] It is understood that the terms “first,” “second,” etc., used in this application may be used herein to describe various concepts, but unless otherwise stated, these concepts are not limited by these terms. These terms are only used to distinguish one concept from another. For example, without departing from the scope of the embodiments of this application, first information may also be referred to as second information, and similarly, second information may also be referred to as first information. Depending on the context, the words “if,” “when,” or “in response to a determination” as used herein may be interpreted as “when…” or “when…” or “in response to a determination.”

[0038] As used in this application, the terms "at least one", "multiple", "each", "any", etc., "at least one" includes one, two or more, "multiple" includes two or more, "each" refers to each of the corresponding multiples, and "any" refers to any one of the multiples.

[0039] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing embodiments of this application only and is not intended to limit this application.

[0040] like Figure 1 and Figure 2 As shown, Figure 1 This is a schematic diagram of a flexible circuit board front and back marking rotation device provided in an embodiment of this application. Figure 2 This is a structural diagram of the fixed clamping bar 520, which includes: a support frame, a connecting rod 300, a rotary servo motor 400, a fixed clamping bar 520, a first tension cylinder 610, a movable clamping bar 510, and a control base unit.

[0041] Specifically, the support frame includes two first support rods 100 and two second support rods 200 of equal length. The two first support rods 100 and the two second support rods 200 are connected to form a rectangular frame, i.e., the support frame. Two connecting rods 300 are provided, one end of which is connected to the center point of each of the first support rods 100. The center point of each first support rod 100 is located at the intersection of its line of symmetry and the two ends of the first support rod 100, ensuring that the distance from the center point to both ends of the first support rod 100 is equal. Two rotary servo motors 400 are provided. One end of each connecting rod 300 is connected to the first support rod 100 of the support frame, and the other end is connected to the rotary servo motor 400. When the rotary servo motor 400 is started, it drives the support frame to rotate via the connecting rods 300. Two fixing clips 520 are provided, and each fixing clip 520 is fixedly connected to the second support rod 200. To more stably support the flexible circuit board, fixing clips 520 are provided on both second support rods 200, and the fixing clips 520 are fixedly connected to the second support rods 200. Figure 2As shown, the connecting surfaces of the fixing clip 520 and the second support rod 200 form a 90° angle, allowing the flexible circuit board to have the maximum contact area when placed on the fixing clip 520. One end of the first tension cylinder 610 is fixedly connected to the second support rod 200, and the connection point between the first tension cylinder 610 and the second support rod 200 is located above the connection point between the fixing clip 520 and the second support rod 200. Two movable clamping bars 510 are provided. The movable clamping bars 510 are fixedly connected to the other end of the first tension cylinder 610. Since the movable clamping bars 510 and the fixed clamping bars 520 need to be used together, they are respectively set above the fixed clamping bars 520. One end of the first tension cylinder 610 is fixedly connected to the second support rod 200, and the other end of the first tension cylinder 610 is connected to the movable clamping bars 510. The distance between the movable clamping bars 510 and the second support rod 200 is controlled by the first tension cylinder 610, so that the distance between the movable clamping bars 510 and the fixed clamping bars 520 changes. When it is necessary to clamp the flexible circuit board, the movable clamping bars 510 are controlled to minimize the distance between them and the fixed clamping bars 520, thus realizing the clamping of the flexible circuit board. The control base unit includes a first control base 710 and a second control base 720. The first and second control bases 710 and 720 are respectively connected to two rotary servo motors 400. The control base unit is communicatively connected to a first tension cylinder 610. The control base unit can control the rotation of the rotary servo motors 400 and the extension and retraction of the first tension cylinder 610. It also serves as a support structure for the flexible circuit board front and back marking rotation device, suspending the column of the support frame in the air for easy rotation and flipping. The flexible circuit board front and back marking rotation device ensures work efficiency and a clean result for the flexible circuit boards.

[0042] In some embodiments, such as Figure 3 As shown, Figure 3 This is a structural diagram of the safety buckle device. The safety buckle device includes two second tension cylinders 621 and four fixed slots 622. The two second tension cylinders 621 are respectively connected to two rotary servo motors 400. The four fixed slots 622 are respectively set on the first control base 710 and the second control base 720. The second tension cylinders 621 are communicatively connected to the control base unit.

[0043] Specifically, to ensure the safe rotation of the flexible circuit board front and back marking rotary device during rotation, and to prevent damage to the equipment or injury to operators caused by rotation exceeding or falling short of the required 180°, a safety latch device is installed. The second tension cylinder 621 in the safety latch device is mounted on the rotary servo motor 400. The fixing slots 622 in the safety latch device are located on the first control base 710 and the second control base 720, with two fixing slots 622 on each of the first and second control bases. The positions of the two fixing slots 622 on the first and second control bases 710 and 720 are symmetrical relative to the first and second control bases 710 and 720, respectively. The second tension cylinder 621 is communicatively connected to the control base unit. When the safety buckle device is in the initial state, the telescopic rod of the second tension cylinder 621 is located in the fixed slot 622, which is on the same side of the first control base 710 and the second control base 720. When the flexible circuit board front and back marking rotation device is ready to start rotating, the control base unit first controls the second tension cylinder 621 to shorten the telescopic rod so that it is disengaged from the fixed slot 622. When the second tension cylinder 621 is disengaged from the fixed slot 622, the control base unit controls the rotation servo motor 400 to rotate. When it is about to rotate to 180°, the control unit controls the second tension cylinder 621 to extend the telescopic rod so that when it reaches 180°, the telescopic rod is inserted into the fixed slot 622 and locked in the rotation state, preventing the rotation servo motor 400 from rotating more than 180°. If the rotary servo motor 400 malfunctions and fails to rotate to 180°, the extension rod can extend directly to the surface of the rotary servo motor 400. Due to the friction between the extension rod and the surface of the rotary servo motor 400, the fixed support frame will not swing back and forth, preventing misalignment of the marking due to the rotation angle of the rotary servo motor 400 from affecting the production process, and avoiding sudden rotation that could injure operators or damage other machinery, allowing for repairs. The safety latch device limits the rotation angle of the rotary servo motor 400, ensuring the operational safety of the flexible circuit board front and back marking rotation device.

[0044] In some embodiments, such as Figure 4 As shown, Figure 4This is a structural diagram of the safety bumps. Two sets of safety bumps are provided, one between the first control base 710 and the rotary servo motor 400, and the other between the second control base 720 and the rotary servo motor 400. Each safety bump includes a first bump 810, a second bump 820, and a third bump 830. The two sets of first bumps 810 and second bumps 820 are respectively located on the connecting surface of the first control base 710 and the rotary servo motor 400, and on the connecting surface of the second control base 720 and the rotary servo motor 400. The two sets of third bumps 830 are respectively located on the connecting surface of the rotary servo motor 400 between the first control base 710 and the rotary servo motor 400, and on the connecting surface of the rotary servo motor 400 between the second control base 720 and the rotary servo motor 400.

[0045] Specifically, two sets of first protrusions 810 and second protrusions 820 are respectively disposed on the connecting surfaces of the first control base 710 and the second control base 720, wherein the connecting surfaces refer to the surfaces that the first control base 710 and the second control base 720 contact each other with the rotary servo motor 400 during alignment. The two sets of first protrusions 810 and second protrusions 820 are symmetrically positioned. The shape of the first protrusion 810 can be circular or rectangular, which is not limited in this application. The first protrusions 810 and second protrusions 820 are used to limit the movement of the third protrusion 830 when the rotary servo motor 400 drives the third protrusion 830 to rotate, thereby limiting the movement of the third protrusion 830 and preventing the rotary servo motor 400 from rotating more than 180°. The safety protrusions are a safety measure for the rotating device for marking the front and back sides of the flexible circuit board, and also to prevent misalignment of the marking due to the rotation angle when marking the back side of the flexible circuit board, which would affect the production process. The third protrusion 830 is mounted on the rotary servo motor 400 and is positioned where the first protrusion 810 and the second protrusion 820 can limit rotation by 180°. For example, when the flexible circuit board rotates from the front to the back, the third protrusion 830 contacts the first protrusion 810, and the first protrusion 810 limits the third protrusion 830. When the flexible circuit board rotates from the back to the front, the third protrusion 830 moves away from the first protrusion 810 and contacts the second protrusion 820, and the second protrusion 820 limits the third protrusion 830. The safety protrusion and the safety latch device can be used in combination or as separate replacements.

[0046] In some embodiments, the first protrusion 810 and the second protrusion 820 are made of permanent magnets, and the third protrusion 830 is made of electromagnet. When the third protrusion 830 contacts the first protrusion 810 or the second protrusion 820, the third protrusion 830 is energized, and the third protrusion 830 is firmly magnetically attracted to the first protrusion 810 or the second protrusion 820, so that the rotary servo motor 400 will no longer wobble due to inertia or other reasons, and the rotary servo motor 400 is stably connected to the control base unit. When the rotary servo motor 400 starts to rotate, by changing Figure 3 The direction of the current in the bump changes the direction of the magnetic pole of the third bump 830, causing the third bump 830 to disengage from the first bump 810 or the second bump 820 to complete the rotation of the rotary servo motor 400. When it is about to rotate to 180°, the direction of the current in the third bump 830 is adjusted so that the third bump 830 is firmly magnetically attracted to the first bump 810 or the second bump 820, thereby achieving a stable rotation state and preventing the support frame or flexible circuit board from swaying back and forth due to inertia and other factors, thus avoiding the danger caused by this.

[0047] In some embodiments, such as Figure 5 As shown, Figure 5 This is a structural schematic diagram of the third tension cylinder 630. There are two third tension cylinders 630, which are respectively installed inside the two first support rods 100. The two ends of the third tension cylinder 630 are respectively connected to the second support rod 200, and the third tension cylinder 630 is communicatively connected to the control base unit.

[0048] Specifically, the first support rod 100 may have a hollow tubular structure inside. A third tension cylinder 630 is installed inside the hollow of the first support rod 100. The middle position of the third tension cylinder 630 is fixedly connected to the first support rod 100, and the end point of the telescopic rod of the third tension cylinder 630 is connected to the end point of the second support rod 200. The length change of the telescopic rod of the third tension cylinder 630 is controlled by a communication connection between the control base unit and the third tension cylinder 630. The third tension cylinders 630 in the two first support rods 100 are of the same model and size, and the control base unit controls the two third tension cylinders 630 with the same range of change. Because flexible circuit boards come in various sizes, when marking larger flexible circuit boards, the extension rod of the third tension cylinder 630 can be controlled by the control base unit to increase the distance between the two second support rods 200, thereby expanding the area that the support frame can support and clamp larger flexible circuit boards. Conversely, when the flexible circuit board is smaller, the extension rod of the third tension cylinder 630 can be controlled by the control base unit to shorten the distance between the two second support rods 200, thus clamping smaller flexible circuit boards. Through the third tension cylinder 630, the flexible circuit board front and back marking rotation device can clamp flexible circuit boards of different sizes for front and back marking.

[0049] In some embodiments, each second support rod 200 is fixedly connected to three first tension cylinders 610, wherein two first tension cylinders 610 are respectively disposed at both ends of the second support rod 200 near the first support rod 100, and the other first tension cylinder 610 is disposed at the center point of the second support rod 200, and the length of the movable clamping bar 510 is greater than the distance between the two first tension cylinders 610 near the first tension cylinder 610.

[0050] Specifically, when the movable clamping bar 510 is short, a first tension cylinder 610 can be set on each of the two second support rods 200. The first tension cylinder 610 is located at the midpoint where the axis of symmetry of the movable clamping bar 510 and the second support rod 200 intersects. This way, when the first tension cylinder 610 controls the movable clamping bar 510, the force on the flexible circuit board will not be uneven due to the different weights of the connected movable clamping bar 510, which would cause the clamping to loosen and affect the clamping effect. When the movable clamping bar 510 is long, in order to better control the movable clamping bar 510, three first tension cylinders 610 are set on each of the second support rods 200. Two of the first tension cylinders 610 are set at the two ends of the second support rod 200 near the first support rod 100, and the third first tension cylinder 610 is set at the center point of the second support rod 200. This can better control the movable clamping bar 510 and make the three first tension cylinders 610 bear force evenly. During the clamping process, the movable clamping bar 510 and the fixed clamping bar 520 provide a more stable clamping effect on the flexible circuit board, preventing the flexible circuit board from falling off due to clamping issues in the front and back marking rotation device, which would affect subsequent marking and other production processes. In this embodiment, for the longer movable clamping bar 510, the number of first tension cylinders 610 is set to no less than 3. There is no limit to the number of first tension cylinders 610, all of which are within the protection scope of this application.

[0051] In some embodiments, the first control base 710 and the second control base 720 are communicatively connected, and the second control base 720 controls the rotation of the rotary servo motor 400 according to the signal sent by the first control base 710. Specifically, since the control base unit is communicatively connected to the first tension cylinder 610, the second tension cylinder 621, the third tension cylinder 630, and the rotary servo motor 400, the front and back marking rotation device for flexible circuit boards is controlled by the control base unit to complete the front and back marking steps during operation. If the instructions received by the first control base 710 and the second control base 720 in the control base unit are different, such as the control of the rotary servo motor 400, the two ends of the support frame will not rotate synchronously during the rotation process, causing damage to the machine. Therefore, the second control base 720 controls the rotation of the rotary servo motor 400 according to the signal sent by the first control base 710. The first control base 710 and the second control base 720 are communicatively connected. The speed of signal transmission will not affect the communication delay between the first control base 710 and the second control base 720. The second control base 720 is directly controlled by the first control base 710, so that the control base unit can synchronously control other equipment components, ensuring the safe operation of the flexible circuit board front and back marking rotation device.

[0052] In some embodiments, hydraulic lifting devices are respectively provided below the first control base 710 and the second control base 720. The flexible circuit board front and back marking rotation device is equipped with hydraulic lifting devices to cope with different production environments. For example, when the third tension cylinder 630 extends the first support rod 100 to clamp a larger flexible circuit board, the extension space of the first support rod 100 at its current height is limited, and the second support rod 200 may contact the bottom surface during rotation, affecting safe production. In such cases, the hydraulic lifting device can be adjusted to raise the flexible circuit board front and back marking rotation device, thereby ensuring a safe production operating space for the flexible circuit board front and back marking rotation device. The hydraulic lifting device can be adjusted in height manually, or it can be communicatively connected to the control base unit, which controls the lifting hydraulic device to ensure that the first control base 710 and the second control base 720 are at the same height, preventing the flexible circuit board front and back marking rotation device from tilting.

[0053] In some embodiments, an infrared laser blocking sensor (not shown) is also included, which is disposed on the control base unit. Specifically, during the flexible circuit board manufacturing process, the concave blocking sensor is a device that utilizes laser technology and the principle of physical blocking to achieve precise detection or positioning. It performs positioning and alignment detection, foreign object detection and defect warning, and dynamic monitoring during the marking process when the flexible circuit board is placed on the support frame. For positioning and alignment detection, when the edge of the flexible circuit board or its specific mark moves onto the fixed clamping bar 520 and blocks the laser, the infrared laser blocking sensor triggers a signal. Based on the signal, it determines whether the flexible circuit board has reached the designated position. If it has, it immediately controls the movable clamping bar 510 to clamp the flexible circuit board for marking operation. For foreign object detection and defect warning, if there are foreign objects or local protrusions on the surface of the flexible circuit board, it may cause defects in subsequent marking processes. The infrared laser blocking sensor is installed on the first control base 710 and the second control base 720. The laser height is preset according to the thickness of the flexible circuit board. When foreign objects on the surface of the flexible circuit board cause abnormal thickness, and the foreign objects enter the monitoring area and block the laser, the sensor triggers an alarm, prompting the production line to clean up. For dynamic monitoring during the marking process, it is necessary to monitor the stability of the flexible circuit board's rotation in real time during the marking and flipping process. If the flexible circuit board experiences jamming or rotation angle deviation during reversal, the monitoring area of ​​the flexible circuit board will deviate from the center position, and the time or position of laser obstruction will be abnormal. The infrared laser blocking sensor judges the abnormality through signal changes and promptly feeds back to the control base unit for adjustment. Through the non-contact, high-precision monitoring of the infrared laser blocking sensor, the positioning and defect monitoring challenges of flexible circuit boards in high-speed production are solved.

[0054] In some embodiments, a laser infrared counter (not shown in the figure) is also included, which is mounted on the control base unit. Specifically, the laser infrared counter is mainly used to accurately count the number of flexible circuit boards marked and monitor the stability of the production process, solving the problems of large errors, low efficiency, and difficulty in tracing production line anomalies caused by manual counting. The laser infrared counter works in conjunction with the rotating device for marking the front and back sides of the flexible circuit boards to display the production speed in real time. Abnormal counts, such as sudden interruptions or surges in counting, can quickly pinpoint problems, such as a 400° malfunction in the rotating servo motor or a blockage in the marking head, significantly reducing downtime for maintenance. It automatically records the counting time, total number, and operating parameters such as laser power or marking speed for each batch of flexible circuit boards, forming an electronic ledger. When quality problems occur, the counting data for the corresponding time period can be quickly retrieved to trace the range of defective products. The laser infrared counter does not require physical contact with the surface of the flexible circuit board, avoiding secondary damage such as creases and contamination caused by manual counting, making it particularly suitable for ultra-thin or precision flexible circuit board products. Through zero-error counting, real-time anomaly warnings, and data traceability, the laser infrared counter improves production efficiency and quality controllability.

[0055] To achieve the above objectives, such as Figure 6 and Figure 7 As shown, another aspect of this application embodiment proposes a method for marking and rotating the front and back sides of a flexible circuit board. This method includes, but is not limited to, steps S100 to S500:

[0056] Step S100: The flexible circuit board grasped by the robotic arm is placed at the positioning center point, so that the edge of the flexible circuit board falls on the fixed clamping bar;

[0057] Step S200: The control base unit controls the first tension cylinder to drive the movable clamping bar to press down, so that the fixed clamping bar and the movable clamping bar clamp the flexible circuit board.

[0058] Step S300: After the front side of the flexible circuit board is marked, the control base unit controls the rotary servo motor to drive the connecting rod to rotate, so that the connecting rod drives the support frame to rotate 180°, and the back side of the flexible circuit board faces upward.

[0059] Step S400: After the marking is completed on the reverse side of the flexible circuit board, the control base unit controls the rotary servo motor to drive the connecting rod to rotate, so that the connecting rod drives the support frame to rotate 180°, and the front side of the flexible circuit board faces upward.

[0060] Step S500: The control base unit controls the first stretching cylinder to drive the movable clamping bar to rise, so that the movable clamping bar is separated from the flexible circuit board, and waits for the robotic arm to grab the flexible circuit board that has been marked on both sides.

[0061] Specifically, in step S100, the robotic arm scans the tray or initial position where the flexible circuit board is placed using a vision recognition system. Image processing technology is used to identify the shape, position, and angle information of the flexible circuit board, and the deviation between its current posture and the target posture is calculated. Then, based on this deviation information, the robotic arm adjusts its position and angle, and its end effector precisely grasps the flexible circuit board. After grasping, the robotic arm can move along a preset path to above the positioning center point of the flexible circuit board's front and back marking rotating device. Simultaneously, the vision system continuously monitors its movement to ensure the path is correct. Upon reaching the positioning center point of the flexible circuit board's front and back marking rotating device, the robotic arm slowly descends until the edge of the flexible circuit board is stably mounted on the two fixed clamping strips 520, completing the placement action and ensuring the flexible circuit board is precisely positioned, preparing it for the subsequent marking process.

[0062] In some embodiments, in step S200, when the flexible circuit board is placed stably on the flexible circuit board front and back marking rotation device by the infrared laser blocking sensor, the control base unit controls the first tension cylinder 610 to extend its telescopic rod. Since the other end of the first tension cylinder 610 is connected to the movable clamping bar 510, when the telescopic rod of the first tension cylinder 610 extends, it will drive the movable clamping bar 510 to press down. The movable clamping bar 510 continues to move downward until it forms a clamping state with the fixed clamping bar 520 on the flexible circuit board. At this time, the first tension cylinder 610 is supported by the fixed clamping bar 520 and given an upward supporting force. The sensor in the first tension cylinder 610 judges the magnitude of the force. When the force threshold is reached, the telescopic rod of the first tension cylinder 610 is locked to keep it fixed, so as to avoid the clamping instability caused by the unstable fixation of the telescopic rod of the first tension cylinder 610.

[0063] In some embodiments, in step S300, after the telescopic rod of the first tension cylinder 610 is locked, the control base unit sends a signal indicating stable clamping to the marking device. The marking device uses CCD point-to-point positioning (a technology that uses a charge-coupled device camera to capture images and calculates the target point coordinates through an algorithm to achieve precise positioning) to lock the marking area and then performs laser engraving on the front side of the flexible circuit board. After marking is completed, the marking device sends a marking completion signal to the control base unit. After receiving the signal, the control base unit powers on the rotary servo motor 400 to rotate. During the rotation, since the connecting rod 300 is fixedly connected to the rotary servo motor 400, it drives the connecting rod 300 and the support frame connected to the connecting rod 300 to rotate. When the rotation reaches 180°, the control base unit controls the rotary servo motor 400 to rotate instantaneously in the opposite direction and then immediately cuts off the power. The force of the reverse rotation cancels out the force generated by the inertia of the forward rotation, keeping the support frame balanced. Since the flexible circuit board is rotated 180°, the flexible circuit board is now facing upwards.

[0064] In some embodiments, in steps S400 to S500, after the infrared laser blocking sensor determines that the flexible circuit board is facing upwards and in a stable state, a signal is sent to the marking device. The marking device uses a CCD to locate and lock the marking area point-to-point and then performs laser engraving on the reverse side of the flexible circuit board. After marking is completed, the marking device sends a marking completion signal to the control base unit. The control base unit controls the rotary servo motor 400 to drive the connecting rod 300 to rotate, causing the connecting rod 300 to rotate the support frame another 180°, so that the front side of the flexible circuit board faces upwards. When it is determined that the front side of the flexible circuit board is facing upwards and in a stable state, the first tension cylinder 610 unlocks and depressurizes to retract the telescopic rod, and the movable clamping bar 510 rises, so that the flexible circuit board is in a released state, waiting for the robotic arm to grab the flexible circuit board that has been marked on both sides.

[0065] In some embodiments, the initial setup, installation, and debugging process of the flexible circuit board front and back marking rotation device includes the following steps: Assembling the first tension cylinder 610 with the second support rod 200 and the movable clamping strip 510 using a customized module model; setting a safety buckle device or safety protrusion after assembling the support frame, connecting rod 300, control base unit, rotary servo motor 400, and fixed clamping strip 520; debugging the clamp module composed of the movable clamping strip 510 and fixed clamping strip 520, the safety buckle device or safety protrusion, the rotary servo motor 400, and the control base unit to verify whether the fit and the set running trajectory meet the standard; simulating the rotary servo motor 400 and the control base unit to find the rotation critical point and installing an infrared laser blocking sensor; verifying the infrared laser blocking sensor and testing the sensor state triggered after the rotary servo motor 400 rotates; checking whether the second tension cylinder 621 in the safety buckle device operates normally and pops out after the infrared laser blocking sensor is triggered; and testing whether the laser infrared counter counts normally after the robotic arm picks up and lowers the flexible circuit board.

[0066] It is understood that the content of the above method embodiments is applicable to the present device embodiments. The specific functions implemented by the present device embodiments are the same as those of the above method embodiments, and the beneficial effects achieved are also the same as those achieved by the above method embodiments.

[0067] The embodiments described in this application are for the purpose of more clearly illustrating the technical solutions of the embodiments of this application, and do not constitute a limitation on the technical solutions provided by the embodiments of this application. As those skilled in the art will know, with the evolution of technology and the emergence of new application scenarios, the technical solutions provided by the embodiments of this application are also applicable to similar technical problems.

[0068] Those skilled in the art will understand that the technical solutions shown in the figures do not constitute a limitation on the embodiments of this application, and may include more or fewer steps than shown, or combine certain steps, or different steps.

[0069] The terms “first,” “second,” “third,” “fourth,” etc. (if present) in the specification and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms “comprising” and “having,” and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0070] It should be understood that in this application, "at least one (item)" means one or more, and "more than" means two or more. "And / or" is used to describe the relationship between related objects, indicating that three relationships can exist. For example, "A and / or B" can represent three cases: only A exists, only B exists, and both A and B exist simultaneously, where A and B can be singular or plural. The character " / " generally indicates that the preceding and following related objects are in an "or" relationship. "At least one (item) of the following" or similar expressions refer to any combination of these items, including any combination of single or plural items. For example, at least one (item) of a, b, or c can represent: a, b, c, "a and b", "a and c", "b and c", or "a and b and c", where a, b, and c can be single or multiple.

[0071] In the several embodiments provided in this application, it should be understood that the disclosed apparatus and methods can be implemented in other ways. For example, the apparatus embodiments described above are merely illustrative; for instance, the division of the units described above is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or direct coupling or communication connection shown or discussed may be through some interfaces; the indirect coupling or communication connection between apparatuses or units may be electrical, mechanical, or other forms.

[0072] The preferred embodiments of the present application have been described above with reference to the accompanying drawings, but this does not limit the scope of the claims of the present application. Any modifications, equivalent substitutions, and improvements made by those skilled in the art without departing from the scope and substance of the embodiments of the present application shall be within the scope of the claims of the present application.

Claims

1. A flexible circuit board front and back surface marking rotating device, characterized in that, The utility model provides a kind of safety device for supporting frame, including: Support frame, the support frame includes two first support rods and two second support rods, the first support rod and the second support rod are connected; Connecting rod, the connecting rod is provided with two, one end of the connecting rod is connected with the center point of the first support rod respectively; Rotary servo motor, the rotary servo motor is provided with two, the rotary servo motor is connected with the other end of the connecting rod respectively; Fixed clamping strip, the fixed clamping strip is provided with two, the fixed clamping strip is fixedly connected with the second support rod respectively; First stretching cylinder, one end of the first stretching cylinder is fixedly connected with the second support rod; Movable clamping strip, the movable clamping strip is provided with two, the movable clamping strip is fixedly connected with the other end of the first stretching cylinder respectively; Control base unit, the control base unit includes first control base and second control base, the first control base and the second control base are connected with two rotary servo motors respectively, and the control base unit is communicatively connected with the first stretching cylinder; Safety buckle device, the safety buckle device includes two second stretching cylinders and four fixed clamping grooves, two second stretching cylinders are connected with two rotary servo motors respectively, four fixed clamping grooves are arranged on first control base and second control base respectively, and the second stretching cylinder is communicatively connected with the control base unit; Safety protrusion, the safety protrusion is provided with two groups, and is arranged between the first control base and the rotary servo motor and between the second control base and the rotary servo motor respectively;The safety protrusion includes first protrusion, second protrusion and third protrusion;Two groups of first protrusions and second protrusions are arranged on the connecting surface of the first control base between the first control base and the rotary servo motor and on the connecting surface of the second control base between the second control base and the rotary servo motor respectively;Two groups of third protrusions are arranged on the connecting surface of the rotary servo motor between the first control base and the rotary servo motor and on the connecting surface of the rotary servo motor between the second control base and the rotary servo motor respectively.

2. The flexible circuit board front and back marking rotating device according to claim 1, characterized in that, Further including third stretching cylinder, the third stretching cylinder is provided with two, two third stretching cylinders are arranged in two first support rods respectively, two ends of the third stretching cylinder are connected with the second support rod respectively, and the third stretching cylinder is communicatively connected with the control base unit.

3. The flexible circuit board front and back marking rotating device according to claim 1, characterized in that, Each second support rod is fixedly connected with three first stretching cylinders, wherein two first stretching cylinders are arranged at two ends of the second support rod close to the first support rod respectively, and another first stretching cylinder is arranged at the center point position of the second support rod, and the length of the movable clamping strip is greater than the distance between two first stretching cylinders close to the first stretching cylinder.

4. The flexible circuit board front and back marking rotating device according to claim 1, characterized in that, The first control base is communicatively connected with the second control base, and the second control base controls the rotation of the rotary servo motor according to the signal sent by the first control base.

5. The flexible circuit board front and back marking rotating device according to claim 1, characterized in that, The first control base and the second control base are respectively provided with hydraulic lifting devices below.

6. The flexible circuit board front and back marking rotating device according to claim 1, characterized in that, An infrared laser blocking sensor is further included and arranged on the control base unit.

7. The flexible circuit board front and back marking rotating device according to claim 1, characterized in that, A laser infrared counter is further included and arranged on the control base unit.

8. A flexible circuit board front and back surface marking rotation method applied to the flexible circuit board front and back surface marking rotation device according to any one of claims 1-7, characterized in that, It comprises: The flexible circuit board grabbed by the mechanical arm is placed at the positioning center point, so that the edge of the flexible circuit board falls on the fixed clamping strip; The control base unit controls the first stretching cylinder to drive the movable clamping strip to press down, so that the fixed clamping strip and the movable clamping strip clamp the flexible circuit board; After the front surface of the flexible circuit board is completed, the control base unit controls the rotating servo motor to drive the connecting rod to rotate, so that the connecting rod drives the support frame to overturn 180°, and the back surface of the flexible circuit board faces upward; After the back surface of the flexible circuit board is completed, the control base unit controls the rotating servo motor to drive the connecting rod to rotate, so that the connecting rod drives the support frame to overturn 180° again, and the front surface of the flexible circuit board faces upward; The control base unit controls the first stretching cylinder to drive the movable clamping strip to lift, so that the movable clamping strip and the flexible circuit board are separated, and the mechanical arm waits to grab the flexible circuit board whose front and back surfaces are completed.

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