How does the AC series dough kneading machine's industrial control circuit board implement multi-stage kneading program control?
Publish Time: 2025-08-21
In modern commercial kitchens and food processing companies, AC series dough kneading machines are no longer simple mechanical mixing devices; they are gradually evolving towards intelligent and automated processes. The industrial control circuit board, as the "brain" of the AC series dough kneading machine, undertakes core control tasks. In particular, in implementing multi-stage kneading program control, the industrial control circuit board uses sophisticated logic operations and timing management to enable the kneading process to be divided into stages, thus meeting the personalized requirements of different noodle varieties for kneading time, speed, and pause rhythm.The core of the multi-stage kneading program lies in "step-by-step control." For example, the first stage might be for initial mixing of dry and wet ingredients at a low speed; the second stage might involve intensive kneading and pressing, increasing the speed to form a gluten network; and the third stage might be intermittent kneading, simulating the manual "resting" process. The operating parameters of these different stages, including motor speed, run time, pause intervals, and reversal, are all programmed and precisely executed by the industrial control circuit board.Industrial control circuit boards typically use a single-chip microcontroller (MCU) or programmable logic controller (PLC) as the main control chip. During the program design phase, technicians break down the kneading process required for different pasta products (such as bread, steamed buns, and noodles) into multiple steps and program the operating parameters for each step into the control program. Once the user selects the corresponding program on the control panel, the circuit board automatically calls the preset process flow and executes it step by step.During execution, the industrial control circuit board outputs signals to control relays or solid-state relays (SSRs), which in turn drive the motor in different operating modes. For example, motor speed can be adjusted using PWM (pulse width modulation) technology, or kneading direction can be changed by switching forward and reverse relays. The circuit board also monitors the running time in real time. When the first program step ends, it automatically delays or pauses before moving on to the next step, ensuring seamless transitions between stages.To enhance control accuracy and safety, modern industrial control circuit boards also integrate various sensor feedback mechanisms. For example, a current detection module can sense changes in motor load to determine the dough's softness or firmness; a temperature sensor prevents motor overheating; and a limit switch ensures that the mixing bowl is in place before starting. These signals are transmitted back to the circuit board in real time, enabling closed-loop control and ensuring stable operation of multi-stage programs under various operating conditions.In addition, the human-machine interface (HMI) is also a crucial component in implementing multi-stage control. Using a digital tube, LED display, or touch screen, operators can intuitively select programs, view the current operating stage, modify time and speed parameters, and even save custom programs. This flexibility significantly enhances the AC series dough kneading machine's applicability and ease of operation.It is worth noting that the implementation of multi-stage programs relies not only on hardware but also on optimized software logic. The program on the industrial control circuit board must have a well-designed state machine capable of handling various scenarios, such as program jumps, abnormal interrupts, and manual intervention. For example, if the user pauses mid-process, the system should be able to remember the current stage and remaining time, and resume execution upon resumption, rather than starting from the beginning.In practical applications, multi-stage kneading programs significantly improve the stability and consistency of dough quality. Compared to traditional single-speed continuous operation, segmented control better promotes gluten formation and avoids the deterioration of texture caused by over-kneading. It is particularly suitable for processing dough with high-gluten flour or a high-water content.In summary, the AC series dough kneading machine's industrial control circuit board integrates a microcontroller, sensors, driver modules, and a human-machine interface, combined with pre-set multi-stage process programs, to achieve intelligent and refined control of the entire dough kneading process. This not only improves the equipment's automation level but also provides strong support for standardization and efficiency improvements in food production.
