Film Rewinder

Film Rewinder

Rewinding Machine operating procedures - Start thread
1The main operator passes the inspection to confirm that the paper core and the size of the paper cut are correct.
The power-on signal informs the operator to prepare the paper. Open the paper feed roller, blower system, and paper positioning system before threading.
2. Start the rewinding machine and crawl the car at a speed of 15 meters.
3. The base paper is torn or folded into a triangle and sent to the platen roller to be delivered by the platen roller.
The paper is fed to the bottom knife roll and pressed against the horizontal roller.
4. The paper web is drawn flat and the paper trimming is aligned with the paper core and the port.
Introduce the paper edge fan to inform the main operation to stop. At this time, check the trimming situation and adjust it in time.
5. Use a piece of tape to match the paper web to the paper core, and then remove the letter immediately after sticking.
No. To inform the main operation, press the platen roller button to press the platen roller against the paper core, and start the roll paper.

Film Rewinder

Belt rewinding machine design and working principle ---

16
Stretching device after cutting the web
The purpose of stretching after slitting is to stretch the sheet in the lateral direction and to separate the cut sheets from each other.
Construction
After the cut, the stretch is achieved by the wrap angle roll. The wrap angle roll includes a stretch roll. The first spreader roll is above the cut sheet and the second spreader roll is below the sheet. Both rollers are mounted on a frame that is used to adjust the stretch.
The spreader rolls above the sheet have good curvature. The spreader roll is equipped with a bend control device. The hand wheel and screw mechanism are used on the maintenance side to control the direction and tendency of the bend.
The segmented spreader rolls are under the sheet of paper. The segmented stretch roll is placed over an arcuate roll mounted on a steel beam. The cylinder is mounted below the segmented spreader roll. The bending curvature of the spreader roll can be modified by adjusting the gas pressure to adjust the cylinder.
Stretching principle:
When the sheet passes under the first roller, the sheet is guided from the center to the outside by a curved roller at each slightly different angle. At this time, there is a small gap between the cut sheets. When the sheet is placed over the second roll, the sheet encounters an arc of the opposite direction, which allows the sheet to remain parallel through the gap.
The stretching effect is mainly controlled by changing the wrap angle of the spreader roll. In addition, the stretching effect can also be controlled by changing the bow position of the stretch roll to control and change the arcuate curvature of the segmented spreader roll. The spreader roller is driven by a separate drive motor through a V-belt. The speed of the stretching roller is the same as the speed of the rewinding machine.
Measuring the exit roller diameter 1- Diameter measuring sensor 2- Support frame 3- Reel
 

Film Rewinder

Belt rewinding machine design and working principle ---

17
Measure the diameter of the exit roller.
The diameter measuring sensor or the super-sonic sensor is fixed on the floor in the middle of the paper exit. The sensor measures the diameter of the reel as the reel becomes smaller in the rack position.

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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

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