Finger Lift Tape Machine

Finger Lift Tape Machine

Rewinder mechanical structure and control process ---

Third, the rewinding machine control performance indicators
The rewinder is the last process in the papermaking process. The performance of the rewinder determines the quality of the finished paper roll. A complete rewinder must have the following properties:

3. Tension adjustment mechanism
It is generally believed that web tension control is one of the important factors affecting the tightness of the paper roll. The most important function of flattening the paper web during the rewinding process is the web tension, and the web tension must be kept stable before the paper can be avoided. The lateral movement of the web allows the rolled out finished paper roll to meet the requirements. However, the web tension is only affected when the finished paper roll is rolled up. Since we are using a double bottom roller lower paper rewinding machine, the paper web must pass through the back bottom roller to be wound on the paper roll. The roller will isolate most of the tension, and only a small amount of tension can be transferred to the finished paper roll, which means that if there is tension to control the hardness of the paper roll, if the hardness of the paper roll changes little, The tension will change a lot. The key factors affecting the hardness of the paper roll are the pressure of the platen roller and the torque difference between the front and rear bottom rollers. The effect of the web tension on the hardness of the paper roll is not great because it is not a critical factor. 4. Electric drive "flexible" start and proper speed program control The starting of the winder is of course smoother and better, so that the paper web can be prevented from being subjected to the impact of tension, and the breakage can be reduced and the paper roll can be improved. Rewind quality. In order to meet such requirements, we often add a given integrator to the speed and current of the speed regulation system. This is beneficial to the start of the winder. Through analysis, we can know that if the system is to start more smoothly, give The larger the time constant of the integrator, the better, so the integral time constant of a given integrator can be adjusted over a large range to suit the processing requirements.
From the above four points, we can see that the electronic control system must have adjustment skills to meet the rewinding process.

Finger Lift Tape Machine

Belt rewinding machine design and working principle ---

2 rear bottom roller
The roller is covered with a steel shell. It maintains a dynamic balance at a speed equivalent to the design speed. The roller has a coating and a spiral groove. Equipped with hydraulic brake system. The roll outer coating is used to attempt to increase the friction between the roll surface and the paper during rewinding. Air is discharged along the spiral groove between the roll surface and the paper roll.
Vacuum drum
The rear bottom roller has a hole. Vacuum suction is generated by a blower. This facilitates paper machine threading to ensure that the cut sheet fits snugly against the roll during roll change.
(traction) platen roller device:
1-cylinder safety valve
2- Pressing roller
3- Press roller safety lock
4- Photocell
5- Pressing roller beam
6- Paper roll
The platen roller is used to hold the paper roll during the roll paper process. The pressure between the roller and the drum is adjusted by adjusting the pressure of the platen roller. The rewinding pressure affects the roll density and sheet tightness and winding force. In addition, the platen roller ensures that the paper roll is in an adapted position.
Construction

Finger Lift Tape Machine

Belt rewinding machine design and working principle ---

14 change roll
The roll change blower is used to blow the cut sheet onto the core. On the platen roller, there are three blowing tubes on the paper core with a blowing tube under the paper core. When blasting is used, the paper will bypass the core at the beginning of the machine.


15 paper cut hair dryer
The web cut blower is used when the web must be cut quickly. The blow tube is located between the guide rollers.
The blow tube is activated by a safety photocell or a manually transmitted pulse signal.
1- Spreading roller
2- Adjust the paper wrap angle device,
3- Stretch roller bending direction adjustment device
A- paper web
B- First stretch roll bending direction
C- second stretch roll bending direction
Stretching device
The stretching device on the illustration is the basic position of the display. The web A passes directly through the spreader roll, which means that the web curvature is zero. The first spreader roll B is at an angle of 90 degrees with respect to the sheet. The second spreader roll has a camber at the base position when the cylinder pressure is 0 bar. The cylinder pressure can be read on the meter at the location of the control system.

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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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