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.
Rewinder mechanical structure and control process ---
Second, the main structure of the winder
2.2 Longitudinal section
In the mechanical system of the winder, the slitting mechanism is a very important part of the winder. In order to ensure a straight and smooth cutting edge, the quality control of the finished paper roll plays an important role in ensuring the volume. It is easy and can reduce the fluffing during printing. The slitting mechanism should be installed as close as possible to the paper roll so that it can produce a lateral movement more than necessary during the process of cutting the web without curling.
The high-speed rewinding paper conveying system is also very important in the application. The old-fashioned rewinding machine is mainly handled by manual. With the increase of the speed of the rewinding machine, the manual can no longer be processed. There are two ways to transport the paper side of the reel: fan direct pumping and venturi suction. The direct drawing type of the fan mainly uses a centrifugal fan, and the fan is placed under the floor. The inlet of the fan and the air duct near the longitudinal cutting edge are connected to each other, and the blade of the fan is also equipped with a wind blade. When the fan is sucked, it will be broken by the blade and then sent to the water pulper. However, since the edge of the paper has to pass through the inside of the fan, the blade transported by this type of paper is very worn and needs to be changed frequently. Venturi suction is also used in the high-pressure centrifugal fan, but the paper edge does not pass through the fan, directly the longitudinal cutting edge of the duct into the venturi pipe, the wind machine generates negative pressure in the venturi, and then the paper While washing the venturi tube and then feeding it to the water pulper, the paper edge conveyed at this time is continuous. The disadvantage of this method is that when the speed of the winder is relatively high, the power of the selected fan is large, which will increase the operation. Cost, increase loss.
Guolian High Speed ??Slitting Rewinder Technical Description ---
The specific technical structure is described as follows:
2. Paper cutting department:
It is mainly composed of independent frame, guiding paper-feeding roller, segmented and extended arc roller device, front and rear segment guide roller, bottom knife device, round knife device and paper suction fan.
The frame is welded by steel plates and is heavy and sturdy, completely independent of the take-up frame, avoiding the effects of possible vibration on the paper cut.
Guided paper roller, diameter Φ700mm, material Q235, directly driven by motor, chrome-plated surface, hydraulic disc brake and vertical adjustment device, can be adjusted along the scale with worm gear system to adjust the tension of the paper web, adjustment range It is ±25mm. The large diameter guide rollers also facilitate smooth and high speed operation of the equipment and paper web. The bottom knife device, the round knife device and the front and rear segment guide rollers form a paper cutting platform to ensure that the width direction of the paper cutting is even and even. There are 6 sets of cutters, top knife φ180mm, bottom knife φ200mm, each bottom knife is driven by a variable frequency motor, the cutter is automatically positioned, and the cutting servo width is automatically adjusted by the control servo system. The entire slitting system assembly (including tool holders, guide rails, etc.) is imported from abroad to ensure its stability and reliability. The segment guide roller before and after the cutter has a diameter of φ198mm and a roller material Q235, which is divided into 5 sections. Each side of the cutter is equipped with SKF bearings. The surface of the roller body is grooved and the surface is chrome-plated. The circular knife device is composed of a cylinder, a sliding seat and a round knife, and is fixed on the circular beam beam guide rail. The feeding knife and the knife are controlled by the cylinder. After the starting, the two sides of the knife start to cut the paper edge, and the other round knife is given by the operator. After the command is fed, when the paper breaks, the air source of the middle circular knife is automatically cut off by the main control command and automatically raised. There is a web stabilizer plate on each side of the knife to guide the paper edge.
Before the paper cutting table, a set of segmented stretching roller system is installed. The diameter of the stretching roller is φ198mm, the material of the roller body is Q235, and the surface is chrome-plated. The total length is 19 segments. The curvature of the multi-stage roller can be adjusted before and after the hand wheel to ensure the paper web. smooth.
The suction paper edge device on both sides of the longitudinal cutter uses a special fan to break the paper edge, which makes the suction effect better, and is also beneficial to the next processing of the waste paper edge. Fan motor power 37KW air volume 11000m3 / h.
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