Rewinding Machine common fault - The coil is not tight during operation
1. Unwinding tension controller is not open - Open unwinding tension controller switch
2, did not press the reset button - press the reset button on the two tension controllers
3, the unwinding tension controller tension is too small - increase the unwinding tension controller output current
4, tension controller failure - contact the manufacturer
Guolian High Speed ??Slitting Rewinder Technical Description ---
Fourth, performance guarantee
1. Ensure that the winder is brand new, unused, using the latest design and suitable materials
Manufactured, and in all respects meets the quality, specifications and performance of the contract.
2. Ensure that the production line has been properly guided to install and adjust to achieve product economics and technical means.
3, the seller guarantees that the rotating components will not affect the running performance, paper quality, equipment can
Responsive or maintenance vibration.
4. The vibration guarantee is valid only when the basis of the winder is designed according to the requirements of the seller. 5. Mechanical guarantees do not include natural wear and consumables and consumables.
6. Selling due to improper storage, transportation, installation, maintenance and operation by the buyer
The party is not responsible. The buyer’s modification of the equipment is not guaranteed by the seller.
Design and application of constant tension and load distribution control for winder---
2Rewinder control research status at home and abroad
Rewinding machine is an important papermaking machine. It is usually installed behind the paper machine. Its speed should be 2-3 times of the speed of the paper machine, generally 1500-1800m/min, up to 300om/min. When threading, run at a maximum speed of 1:100. In order to ensure continuous paper and loose paper during the rewinding process, the tension of the paper web must be kept constant; in order to ensure the tight and loose quality inside the finished paper, the load distribution of the front and rear bottom roller motors must be performed. Therefore, the main performance requirements of the rewinder for the electric drive system are long-term linear speed, adjustable speed and wide speed range, and fast response.
The control of the early rewinder is mainly based on DC drive, and the DC control system is composed of discrete components or analog regulators to realize the above control functions. Since the transmission of analog signals requires a one-to-one physical connection, the signal changes slowly, which increases the overhead of computer speed and accuracy, and the anti-interference ability of signal transmission is poor, and paper breakage and wrinkling often occur in the production process. So in the mid-to-late 1980s, the analog regulator was replaced by a digital regulator, and the DC digital control system of the winder appeared. This control system is more stable, reliable and suitable for maintenance than the analog system, and is more suitable for interface with the factory computer. In the mid-1990s, most of the newly-invested rewinders in the domestic paper industry used all-digital DC-speed converters produced abroad, and the more famous ones were the 6RA7O series from Siemens and the 590 series DC-speed converters from Continental Transmission.
Due to the DC motor commutator and the brush, under the stable conditions, the design speed of the winder can only reach 1800m/mni, and the accuracy of the digital regulator is still limited to about 0.08% of the maximum speed, which can not meet the high speed paper. The matching requirements of the machine (the speed of the winder should be 2-3 times the speed of the paper machine). In the early 1980s, European and Japanese developed AC variable frequency speed control devices. This technology was successfully introduced to the United States in the mid-1980s and used in rewinders. The biggest advantage of the AC drive is that the AC motor is simple in construction and reliable in operation, and it requires much less maintenance and repair than DC motors.
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