Modal and environmentally friendly automotive parts processing strategy

Because today’s social development and the state are promoting green products, the three-plate hinge injection molding machine is difficult to achieve environmental protection in terms of land occupation, energy consumption, etc. when it is used as a large-scale product. Therefore, there is a two-plate type. Injection molding machine structure. At the time of structural design, it noticed that three economic and environmentally friendly auto parts production solutions could not be overcome by the machine hinge injection molding machine. Therefore, we have also done a lot of innovations in the mechanical structure: 1. National patent number ZL200720151407X2 for injection molding machine adjustment mold structure, connection method for high-pressure cylinder piston and injection molding machine of injection molding machine. National Patent No. ZL20072015140503, Injection Molding Machine Opening and Closing Nut Clamping Mechanism National patent No. ZL2007201514065 compares the advantages of the two-plate injection molding machine with respect to the three-platen hinge injection molding machine from the mechanical design structure, etc. (5) It can be seen from (4) and (5) that the second plate machine is more traditional than the three plate machine. The structure saves 25% of the floor area and enables a true second board structure. Therefore, the utilization rate of our plant has been greatly improved, and the plant rent and plant construction cost have been greatly saved. This is more adaptable to deep cavity automotive fittings that require large clamping forces. Because the 2200TON two-plate machine has a larger mold opening stroke than the 3600TON three-platen machine, it is more energy-efficient when producing products and the plant site is more economical. Two-plate injection molding machine design, at the same time also take into account some other unparalleled advantages, such as: uniform force, high rigidity, fast mold-moving, power balance, high precision. The template is subjected to uniform forces, so that the qualified rate of the auto parts products to be driven is improved, the speed of the mold shifting is fast, and when the precision of the movement balance is high, the efficiency of the production product can be greatly improved by the addition of an efficient robot.

The advantages of the new control system The performance of the new control system is stable, and it overcomes the technical difficulties of the all-digital servo energy-saving injection molding machine and enables the two-platen injection molding machine of this economical and environmentally friendly auto parts production solution to have high repeatability, low noise, and cost performance. High represents the development of domestic high-end injection molding machines. At the same time, it has high reliability, good real-time performance, and is fully compatible with standard Ethernet protocols. It is rich in hardware and software configuration, simple to maintain, and supports high-speed response.

(a) The hardware of the new control system is all components imported from German Beckhoff. Specific configuration of the following; 1, the main IPC: Beckhoff 15 inch touch screen computer, configuration Celeron 1GHz CUP, 512 memory, 4G CF card. All are industrial-grade computer hardware. 2. Input and output: DI digital input points: 048 (expandable to 480), DO digital output points: 048 (expandable to 480), AI analog input points: 08 (expandable to 32), AO analog output points :08 (expandable to 32), support thermocouple input point: 08 (expandable to 32, supports 96 hot runner control). 3, Communication: Industrial real-time Ethernet Ethernet, CANopen.

(B) The new control system is also used in the software international standards 1, programming environment: the international standard IEC61131-3.2, has a powerful function library, making the program easier to expand.

(C) The advanced process control capability of the new control system; this new control system has all the control capabilities of a general computer control system, as well as some advanced process control capabilities. In the aspect of opening and closing, the general computer control system has only 4 stages of control capabilities and is open-loop controlled, and our new control system has 12 closed-loop controls to achieve high-speed and precise control of the position and speed of opening and closing modes. . And the system response time can reach 0.1ms. In the injection control 10 speed closed loop control. Automatically adjust PID, suitable for molding sophisticated precision products, while maintaining pressure closed loop control, solid line stepless switching, so that the product has a consistent shrinkage rate, to ensure product dimensional accuracy, so that when we produce some automotive lamp products, it is usually transparent thick Wall products, so the control of speed and pressure must be very accurate Caixing, just our system can do a very good control. This will also save more raw materials. 20 groups of personalized automatic core pulling function, can also achieve a variety of core termination methods, such as: limit, timing, counting, location and so on.

The introduction of hysteresis If the system flow demand or the remaining flow demand fluctuates just around the maximum private flow rate of a pump, the next pump will start and stop frequently. Therefore, some kind of hysteresis mechanism needs to be set to prevent this from happening. . For example, the main and subordinate system work logic is based on the parallel hydraulic layout of the multi-pumps. The host is required to assume the function of system control. That is, the current hydraulic pressure can be calculated in real time according to the pressure given by the host computer, the flow rate given, and the pressure feedback of the hydraulic system. The total flow demand of the system is then assigned to each node rationally, and the multi-pump confluence completes the real-time flow requirements. The slave is only an executing agency of the host and does not participate in system control.

For real-time control systems, real-time performance is a very critical performance indicator. Due to the limitation of the communication rate, the host is not allowed to report the corresponding traffic allocation relationship from the peer to peer, but the master is required to tell all the slaves of the total traffic demand of the system. Calculate the self-distribution flow by itself, which requires all nodes to know the situation of other nodes in the entire system before starting the operation, so that the flow requirements of the corresponding system flow can be calculated synchronously and the real-time flow control requirements can be fulfilled.