Rewinding Machine operating procedures - Start roll paper
1. The main operation starts the power-on signal and enters the roll paper state.
2. First set the information (length, diameter) of the paper roll to be rewinded.
The tightness of the paper roll adjusts the amount of tension.
3. Generally, the starting speed of the roll paper is set between 30 and 50 meters.
Step up speed, while speeding up, pay close attention to the subtle realization of the roll paper surface, such as pleats, twisting, knife edge biting, etc., should be adjusted in time to ensure the quality of the roll.
4. When the rewinder is in the normal roll, the paper will suddenly be broken due to paper disease or other reasons. The main operation will immediately press the stop button.
5.1. After the rewinder is stopped, first find the cause of the broken broach, make a broken record, and strip the external waste paper of the roll;
5.2. Instructing the main operation to start the paper feed;
5.3. After the paper web is placed on the paper, the paper is broken at the end of the paper and folded with a knife.
5.4. Pull the tape off and place it under the cut paper web. The length of the tape is two centimeters on both sides of the paper web. Cut it with a blade, then use the hand to pull it up to get the paper web to be pulled up and flattened, taped on the tape, paper. Align the interface, cut the long paper web with a knife, and finally level the adhesive tape with your hand. Immediately after the completion, remove the handle and notify the main operation to lower the platen roller and start the roll paper.
6. The main operation is strictly controlled according to the diameter and length required by the process standard. When the length standard is reached, the vehicle speed can be smoothly decelerated and the rewinding is completed.
Rewinder mechanical structure and control process ---
Second, the main structure of the winder
2.1 Ejection Department
In the rewinder system, we installed the paper roll on the paper exit frame. In order to ensure that the width of the sides of the paper web is the same, we should be moving the seasoning when the paper roll is ejected. However, the paper roll in the new structure can be moved together with the paper exit frame, which ensures greater rigidity of the paper exit frame. In addition to manually moving the paper roll, we can also use the pneumatic, photoelectric device and electric method to adjust the axial movement of the paper exit frame, so that the cutting edge of the winder can be narrowed, and the manual adjustment can not be achieved. Requirements.
We have a coupling on the reel of the unwinding roll. When working, we can use a pneumatic device to connect the brake to the motor. We can know that when the high-speed winder is started, the required acceleration time from zero to 2000m/min can be completed within 50~60s, and the deceleration time required for braking is 40s. Or even shorter, so we need to consider the maximum diameter and the maximum braking speed of the paper-removing brake on the winder to reduce the paper loss of the paper-cut, or it will cause a lot of waste. In the selection of the brakes of the eject roll, we often use brakes for starting brakes, magnetic brakes and mechanical brakes. In the usual case, we use the combination of the brake motor and other brake devices. When we press the paper, the paper roll started by the DC motor can enter the acceleration and working state and can be operated by the braking of the DC motor. Control, the tension control of the paper web, in the case of emergency stop, we can use the DC motor and other brakes together to stop the paper roll at the fastest speed.
Guolian High Speed ??Slitting Rewinder Technical Description ---
The rewinder has the characteristics of high automation, fast speed, stable operation and wide width.
First, the main technical parameters:
Paper type: high strength corrugated paper
Net paper width 4950mm
Working speed 2000m/min
Design speed 2200m/min
Feed speed ≤25m/min
The maximum diameter of the eject roller φ3100mm
Roller roller maximum diameter φ1500mm
Roller roll minimum diameter φ500 mm
Maximum web tension 1500N/m Acceleration time 90s Emergency stop time 25s
Arrangement Right hand (retract the paper from the paper exit, the drive is on the right)
Dynamic balance level G1.6
Paper core 3”
Color to be determined
The rewinder is mainly composed of a mechanical part, a hydraulic and pneumatic part, an electric control part and the like.
The specific technical structure is described as follows:
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