Rewinding Machine Structure - Roll Paper Department:
1. Stretching device
2. support roller
4. transmission mechanism
Design and application of constant tension and load distribution control for winder---
1. Rewinder structure and working principle
1.2 Working principle
The paper web is taken out from the paper take-off roller (in this paper, the lower paper feeding method is adopted), and the paper guide roller passes through the slitting mechanism, and is wound from the bottom between the front and rear bottom rollers, and then wound on the paper core. There are 1 support rollers in front of and behind the slitting mechanism, and the front and rear support rollers are equipped with tension sensors for measuring the tension of the web. The platen roller above the core ensures the hardness of the roll. Each component of the winder is driven by a separate motor. The working principle is 3: the original paper roll taken from the paper machine is placed on the unwinding roller, and the brake on the unwinding roller maintains a certain tension of the paper web, and Quickly brake the paper roll when the head is broken. The paper web passes through the guiding roller to reach the slitting device, and several slitting circular cutters divide the paper into the required width, and then send it to the take-up roller for rewinding. After reaching the specified length, the paper is stopped and replaced with a new paper core. Repeat the above process. The main structural parameters of the winder are the width of the paper that can be processed and the maximum speed, followed by the maximum diameter of the paper and roll, the method of cutting and the length.
It can be seen from the working principle of the winder that the motor of the take-up roller drives the corresponding take-up roller to rotate the paper-wound paper core, the diameter of the paper roll gradually increases, and the axial center of the paper roll increases with the diameter. Gradually moving up, the platen roller moves up and gradually reduces the pressure. The unwinding motor mainly provides a reverse torque, creating tension on the paper surface, keeping the paper web flat, and the speed control of the unwinding motor is a process of gradually increasing speed, but the linear speed of the paper web remains unchanged.
Belt rewinding machine design and working principle ---
5：Unloading table action
1- Unloading table rise position
2- Middle position of the unloader
The unloading station transfers the paper roll from the winder to the ground.
The unloader is a device mounted on the floor to remove the paper roll. The platform is controlled by a hydraulic cylinder. The platform is a steel structure. The platform hydraulic unit is equipped with a load relief valve. These are to ensure the control process of the unloading roll.
When the paper roll is advanced onto the platform in the upper position, the platform unloads the paper roll to the intermediate position and then onto the floor, and the paper roll rolls off the platform. For safety reasons, the platform will not automatically unload paper onto the floor unless it is moved by the operator from the intermediate position to the unloading position. The reel cannot be unloaded to the floor anyway before the new rewind.
Zhengzhou EAST IMPORT AND EXPORT co., ltd . ( a goulian group of company) a manufacturer and exporter for all kind of packaging machinery , like bopp tape coating machines, bopp tape slitting machines. Bopp tape core cutter, bopp tape core loader etc