附录一Bag-making machine control system research The bag-making machine control system is controls based on the labor machine the integration computer control system, controls machine the control software by the labor to complete the system bag process each kind of function coordination control, and substitutes the original mechanical major axis by the electronic axis, had guaranteed strictly each printing unit's synchronization, provides one kind for the bag-making machine based on the computer control integration solution. The bag-making machine is on the processed foods production line manufactures bag's processing equipment using the plastic film.Bag-making machine's control system mainly includes: The main actuation electrical machinery servocontrol, the fixed-length positioning control system, the tensity control system, the temperature control system, to feed control system and the electro-optic correct an error the control system. At present, the most bag-making machine control system's host actuation electrical machinery servocontrol and the fixed-length positioning control system is a body, namely controls take the labor machine forms a three servocontrol as the control core, but the tensity, the electro-optic correct an error, the temperature and to feed control system independence in this three servocontrol. Each system independent types of control increased the bag-making machine coordination control difficulty mutually, also reduced the entire control system's reliability, to further enhance system's automated performance, must develop the new control plan.In the system bag process, the thin film volume material launches continuously, and corrects an error through the electro-optic with the advanced gear to enter in continuously the folding formation installment. Thin film after folding formation, carries on the hauling and the localization by the fixed-length localization draw gear enters the heat-seal working procedure. Makes in the bag flow the heat-seal working procedure, is causes the laminated film heat-seal spot using the heating wire heating the heat-seal level to turn the plastic flow condition, draws support again cutting tool'spressure, causes high and low two heat-seal material each other to fuse together in together, after the cooling, can maintain certain intensity, has leak-proof and so on good. The heat-seal good bag may according to need to carry on processings and so on punch and margin, finally completes the dinking die by the dinking die installment, makes the end product bag.Bag-making machine's control system must complete the main servo electrical machinery and the feed bag hauling servo electrical machinery's motion control, this contained feed bag's fixed-length positioning control, the system must also complete the feed bag to correct an error, to feed, the tensity and the heat-seal temperature control. The control system controls take the labor machine as a core, carries on each control function the hardware expansion, controls machine the control software through the labor to improve each function conformity the system coordination control performance, forms a computer control system. In addition, the remote diagnosis technology applies in the bag-making machine can strengthen bag-making machine's maintainability.The main servo electrical machinery's types of control are the speed control, the main electrical machinery leads the hot knife vertical motion through four pole organizations, through controls the main electrical machinery driver's speed to control hot knife's state of motion. The feed bag hauling servo electrical machinery's control is the position control, must realize the fixed-length localization hauling. These three servo electrical machinery's coordination control can guarantee the hauling and the heat-seal and the dinking die coordinated work. Puts the material and the feed bag to feed servo electrical machinery may unify with this three servo motor control forms a multiple spindle servo to actuate the control system together. The use may complete many servo electrical machinery's motion control based on the PC machine main line's multiple spindle movement controller, like this simplified the servo to actuate control system's hardware, favored each servo electrical machinery's coordination control. The movement controller controls machine the main line through the labor to carry on the communication with it, like this causes employing labor to control machine the control software then to monitor the movement controller, realizes toeach servo electrical machinery's control.Fixed-length, the positioning control must have custom-made in firmly the bag process bag's length, the heat-seal and the dinking die position. The longitudinal localization is refers to the thin film carries on the fixed-length hauling the control, enables the product to have the good uniformity. The longitudinal localization completes by two feed bag hauling servo electrical machinery, the servo electrical machinery must move according to the S shape curve addition and subtraction ship promptly carries on the intermittent type fixed-length localization hauling, guaranteed that the hauling dynamic process is steady. Two servo electrical machinery must maintain the synchronized movements, this may complete the synchronization control through the movement controller. Regarding the synchronization accuracy requirement high situation, may use the torque synthesis feedback form the control policy, realizes two axis couplings. When the accuracy requirement is ordinary, may use the synchronized main reference form the control policy. Two kind of control policy hardware request basic consistent, is only the software complex degree is different.The crosswise localization, namely the electro-optic corrects an error to control, refers to the route which the control plastic membrane walks, enables it not to deviate the fixed track, must overcome so-called “the fishtail” the question. At present is independent the electro-optic to correct an error the equipment to use the photoelectric sensor to examine the plastic membrane boundary, when occurs runs, corrects an error the controller to correct an error the servo to send out the control signal, causes it to lead a material volume movement through the guide screw to correct the plastic membrane. Corrects an error the controller to be possible to control machine the substitution by the labor, gathers the error signal and the control through AD and the DA board card corrects an error the servo. Advantage employing labor controls machine the software resource may design the very friendly man-machine contact surface, this is the traditional electro-optic corrects an error the controller to be unable to complete.The plastic membrane is one flexible material, will have the stretch elongationunder certain temperature and the tensity, both will cause thickness to be uneven, and will have the bulging, will affect the product the quality. The tensity control's quality has the material effect to the product quality, when complete machine movement in high speed is especially obvious. The tensity control mainly exists in putting between the material and to feed and two carry-over pinch rolls. Is similar corrects an error with the electro-optic to control, at present the tensity control completes most by the independent tensity control system, mainly includes the tensity controller, the tensity detector, the tensiometer, the coupling and the brake. The completely automatic tensity control has the tensity detector to come the immediate determinant volume material the tensity, then turns tensity data the tensity signal to feed in the tensity controller, the tensity controller adjusts the coupling or brake's exciting current controls the volume material the tensity. The tensity controller and the tensiometer control machine the substitution completely by the labor, the signal transformation and the output may complete by AD and the DA board card, the parameter hypothesis, the demonstration and the tensity adjustment value's computation completes by the systems control software. Like this controls through the labor machine the software and hardware resources substitute for the independent tensity control system equipment components, may simplify the system, saves the cost.Heat-seal temperature control quality immediate influence system bag's rate of finished products. Some plastic membrane under 5 degrees temperature differences, the stretch situation will have the very big change, its heat-seal will become very bad, therefore the temperature also will be an important link. The temperature control mainly uses the intelligent program/temperature controller, this kind of controller has the thermo-element input channel and the temperature control output channel. Uses the thermo-element to take bag-making machine's temperature measurement sensor, and adopts the fuzzy PID control the strategy and the PWM technology, causes the thermal rating continuously adjustable, definitely may meet 1℃within deviation requirements. Figure 2 is the system structure diagram. This system has used the function formidable multiple spindle movement controller and the AD/DA board card, I/O expands hardware equipment and so on exhibition board card to substitute forsome general controllers, controls machine the control software by the labor to complete the systems control and coordinated. This kind simplified the system hardware based on the industry computer's integration control policy, has increased the integration rate, not only this enhanced system's reliability, but also facilitates the system function coordinated, reduced control system's costThe system in a control platform - - - labor controls within the aircraft realizes each control function, enhances the reliability, facilitates the system function to be coordinated, the elimination general control device sinks the after effect energy, reduces the cost. The integrated fundamental mode is uses each kind based on the PC machine main line's board card, this includes the multiple spindle movement controller, the AD/DA board card and so on, substitutes for each independent control system's controller. Each kind of sensor and the actuating equipment may are connected through the field bus or the serial interface and the control platform, thus forms a computer control system. The hardware equipment provided each function to realize the platform, the control function realizes must controlled by the labor machine the control software complete. The control software must complete each hardware equipment's communication, the coordinated, the process value establishment and the examination, as well as work and so on system value of exports computation, may realize each kind conveniently using computer's software resource complex and the advanced control algorithm. In addition the control software must have the friendly man-machine contact surface, may demonstrate that bag-making machine's state variable and so on, may facilitate the operation and the monitoring like this This control system was controlled based on the labor machine the integration computer control system, the labor controls machine has provided the hardware platform for the system, controlled machine the control software by the labor to complete the system bag process each kind of function coordination control. Various units' electronic axis has substituted the original mechanical major axis, carries on the data transmission using the optical fiber, its high accuracy had guaranteed each printing unit's strict synchronization, provides one kind for the bag-making machine based on the computer control integration solution.附录二制袋机控制系统研究制袋机控制系统是基于工控机的一体化计算机控制系统,由工控机中的控制软件来完成制袋过程的各种功能的协调控制,并由电子轴来替代原先的机械长轴,严格保证了各印刷单元的同步,为制袋机提供一种基于计算机控制的一体化解决方案。