Rewinding Machine operating procedures - Rewinding
Firstly, the switch is automatically turned on, and then the paper is positioned to automatically unload the paper. After the unloading is completed, the main operation uses the box rule to measure the size of the rolled paper and observe the trimming of the end face and the rewinding of each end roll. Whether the end face has a burr.
Design and application of constant tension and load distribution control for winder---
2. Main research content
(1) On the basis of understanding the working principle and production process of the rewinder, determine the AC drive configuration scheme of the rewinder and the common DC bus power supply mode.
(2) In view of the influence of the change of the winding diameter on the tension during the rewinding process and the phenomenon of paper break and loose paper during acceleration and deceleration, a composite tension control method combining direct tension and indirect tension is proposed, and the real-time calculation and dynamics of the winding diameter are designed. Torque compensation program that effectively corrects tension disturbances to ensure constant tension during rewinding
(3) Software and hardware design to complete the pressure control of the platen roller”
(4) After detailed analysis of the causes of the load distribution of the bottom roller motor before and after the detailed analysis, determine the master-slave control scheme of the two motors, design the load distribution control system.
(5) Establishing a profibus-Dp network system, designing communication between pLC and inverter! Op operation panel"
(6) Using STEP7 to design the software of the rewinder control system, using ProTool to compile the entire monitoring system screen"
Belt rewinding machine design and working principle ---
6 nipple guardrail
The nip guard is a sturdy mesh protector located between the belt roller and the unloader. The nipple guardrail acts as a protective device during the rewinding process. It prevents contact with rotating sticks.
The vertically moving fence is controlled by hydraulics. In the upper position, the safety lock prevents the fence from falling. When the guardrail falls, the cylinder compression safety lock opens.
The nipple is in the upper position when the reel is stopped. When rewinding, it must fall or the winder cannot be turned on.
7 paper feed roller
The reel is moved from the roll to the unloading station by a hydraulically controlled ejector mounted on the frame.
The minimum roll diameter that the pusher roll can be pushed open but cannot be pushed open with the smallest roll is 400 mm (15.7 in)
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