丁基膠涂布機的糾偏系統是通過實時檢測、信號處理、驅動執行的閉環控制邏輯，實現對卷材（如鋁隔條、基材）橫向跑偏的自動糾正，確保丁基膠均勻涂布在預設位置的關鍵裝置。其核心原理可分為以下步驟：

　　The correction system of the butyl rubber coating machine is a key device that automatically corrects the lateral deviation of the coil (such as aluminum spacers and substrates) through real-time detection, signal processing, and closed-loop control logic driven execution, ensuring that the butyl rubber is evenly coated at the preset position. The core principle can be divided into the following steps:

　　1. 偏移檢測：獲取卷材位置信號

　　1. Offset detection: Obtain the position signal of the coil material

　　系統通過光電傳感器（或激光、超聲波傳感器）實時監測卷材的邊緣位置或標志線（如卷材上的印刷線）。對于邊緣檢測，通常采用透射型光電傳感器（卷材遮擋光線時觸發信號）或反射型光電傳感器（卷材反射光線時觸發信號）；對于標志線檢測，則使用兩個反射型光電傳感器，分別置于標志線兩側，通過傳感器狀態的組合（如“同亮”或“異亮”）判斷卷材是否偏移及偏移方向。傳感器將檢測到的位置信號轉換為電信號，傳遞給控制器。

　　The system monitors the edge position or marking lines (such as printing lines on the roll) of the roll in real time through photoelectric sensors (or laser, ultrasonic sensors). For edge detection, transmission type photoelectric sensors (triggering signals when the light is blocked by the roll) or reflection type photoelectric sensors (triggering signals when the light is reflected by the roll) are usually used; For marking line detection, two reflective photoelectric sensors are used, placed on both sides of the marking line, and the combination of sensor states (such as "same brightness" or "different brightness") is used to determine whether the coil is offset and the direction of the offset. The sensor converts the detected position signal into an electrical signal and transmits it to the controller.

　　2. 信號處理：判斷偏移量與方向

　　2. Signal processing: Determine offset and direction

　　控制器（多為微電腦或PLC）接收傳感器信號后，與預先設定的基準位置（如卷材中心線）進行對比，計算出卷材的偏移量（單位：毫米）和偏移方向（左偏/右偏）。例如，若左側傳感器信號弱于右側，說明卷材向左偏移；反之則向右偏移。控制器會根據偏移量的大小和預設的糾偏精度（如±0.5mm），生成對應的控制指令。

　　After receiving sensor signals, controllers (mostly microcomputers or PLCs) compare them with pre-set reference positions (such as the centerline of the coil) to calculate the offset (in millimeters) and offset direction (left/right) of the coil. For example, if the signal from the left sensor is weaker than that from the right sensor, it indicates that the coil has shifted to the left; Otherwise, it will shift to the right. The controller will generate corresponding control commands based on the magnitude of the offset and the preset correction accuracy (such as ± 0.5mm).

　　3. 驅動執行：調整卷材位置

　　3. Drive execution: Adjust the position of the coil material

　　控制器向驅動電機（通常為步進電機或伺服電機）發送控制信號，電機帶動糾偏框架（或糾偏輥、絲杠機構）向偏移的反方向擺動或移動。例如，當卷材左偏時，電機驅動糾偏框架向右擺動，通過摩擦力或機械約束帶動卷材向右移動，直至卷材回到基準位置。部分系統采用液壓或氣動執行機構（如液壓缸），通過液體或氣體的壓力推動糾偏機構運動，適用于大型或高負載設備。

　　The controller sends control signals to the driving motor (usually a stepper motor or servo motor), which drives the correction frame (or correction roller, screw mechanism) to swing or move in the opposite direction of the offset. For example, when the coil deviates to the left, the motor drives the correction frame to swing to the right, and through friction or mechanical constraints, drives the coil to move to the right until it returns to the reference position. Some systems use hydraulic or pneumatic actuators (such as hydraulic cylinders) to push the correction mechanism through the pressure of liquid or gas, which is suitable for large or high load equipment.

　　4. 閉環反饋：維持穩定運行

　　4. Closed loop feedback: maintain stable operation

　　糾偏執行機構動作后，傳感器再次檢測卷材位置，將新的位置信號反饋給控制器。控制器比較當前位置與基準位置的差異，若仍有偏移，則重復上述步驟進行調整；若位置符合要求，則停止驅動，形成“檢測-處理-執行-反饋”的閉環控制，確保卷材持續穩定運行，避免再次偏移。

　　After the corrective actuator is activated, the sensor detects the position of the coil again and feeds back the new position signal to the controller. The controller compares the difference between the current position and the reference position. If there is still a deviation, repeat the above steps for adjustment; If the position meets the requirements, stop driving and form a closed-loop control of "detection processing execution feedback" to ensure the continuous and stable operation of the coil and avoid further deviation.

　　丁基膠涂布機中的特殊應用

　　Special applications in butyl rubber coating machine

　　在丁基膠涂布機中，糾偏系統通常與張力控制組件（如磁粉制動器、張力傳感器）配合使用。張力傳感器監測卷材的張力變化，反饋給控制器，調整磁粉制動器的制動力，確保卷材在糾偏過程中張力穩定，避免因張力波動導致二次偏移。例如，當卷材偏移時，控制器不僅調整糾偏框架，還會同步調節張力，使卷材保持平直，保證丁基膠涂布的均勻性。

　　In butyl rubber coating machines, the correction system is usually used in conjunction with tension control components such as magnetic powder brakes and tension sensors. The tension sensor monitors the tension changes of the coil and feeds them back to the controller to adjust the braking force of the magnetic powder brake, ensuring that the tension of the coil is stable during the correction process and avoiding secondary displacement caused by tension fluctuations. For example, when the coil deviates, the controller not only adjusts the correction frame, but also synchronously adjusts the tension to keep the coil straight and ensure the uniformity of butyl rubber coating.

　　通過上述原理，丁基膠涂布機的糾偏系統能有效解決卷材在傳送過程中的橫向跑偏問題，確保丁基膠準確涂布在鋁隔條或基材的預設位置，保障中空玻璃等產品的密封性能。

　　Through the above principle, the correction system of the butyl rubber coating machine can effectively solve the problem of lateral deviation of the coil during transportation, ensuring that the butyl rubber is accurately coated on the preset position of the aluminum spacer or substrate, and guaranteeing the sealing performance of products such as insulated glass.

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