Abstract
A roll of toilet paper is people's life must，with the increasing of the amount of paper
products，the demand of toilet paper is also more and more big and the safety of toilet
paper，convenience are increasingly high requirements. In order to make the goods neat，
beautiful and have good packaging quality ， the new packaging machine with high
efficiency，high efficiency，high quality and economy is the urgent need of the market.The
design of high-speed automatic roll paper packaging machine control system as the
background，combined with theory and practice，carefully Chronicles photoelectric sensor
technology ， PLC technology and communications technology in one of the advanced
control technology in this packaging machine control system application.
The main contents of this design are as follows ： 1. the present situation of the
programmable controller PLC and its feasibility and prospect in the application of
packaging machinery. 2. based on the recognition of the production process flow of the
paper packaging machine，calculate the input and output I/O points，and then select the
PLC ， hardware configuration design. 3. Synchronization control in the process of
packaging paper packaging. 4. Use Siemens STEP7 programming software ， and the
communication function design the packaging process ladder diagram ， PLC
communication network and STR statement ， used to implement data acquisition and
control output device of high speed，high efficiency and safe operation.
After our efforts，the design of the control system of the paper packaging machine has
been completed.. And after a rigorous test，in the laboratory simulation，achieved good
control results. The machine was to improve the quality of both the function and efficiency，
achieve better control of the request.
Keywords： PLC Packing machine Synchronous control Step7
