Rewinding Machine safety operation guide -
Fifth, the tool change operation:
1. The bottom knife replacement is handled by the mechanic.
2. The rewinding machine must be stopped when the upper round knife is replaced.
3. After removing the round blade, replace the new blade and fix it.
4. Install the round knife seat, adjust the angle, and lower the round knife to make it close to the bottom knife.
5, running, paper test knife, paper edge is not, smooth.
6. The tightness and depth of the blade and the bottom knife should be controlled properly, not too tight, otherwise the new knife
The film will roll the knife; it should not be too loose, otherwise it will jump the knife and the hair; not too deep, otherwise it will cause double trimming; too shallow will jump the knife.
Rewinding Machine operation safety regulations -
Second, the operation steps：
7. When the layers of paper are completely flat and enter the rewinding, the waste coils are taken out to the normal production state. 8, check the production situation:
(1) Check whether the two ends of the base paper are symmetrical. For example, the auger can adjust the auger on the unloading frame to the ends of the paper. (2) Check whether the punched paper is clear, the punching is not clear or the missing teeth are checked. Whether the knife is broken or not
Whether the wire is loose, adjust the height of the bottom knife, and mass production after inspection;
(3) Check whether the paper feeding tension of the rewinding paper is consistent, keep the paper surface flat and no wrinkles, such as inconsistency
Then adjust the paper return belt hand wheel on the paper exit frame;
(4) Check whether the paper between the embossing stick and the winding area is flat and tight, if it meets the requirements, if it does not meet the requirements,
Then adjust the gearbox handwheel (when adjusting the gearbox handwheel, you can't stop the adjustment, you need to turn it on slowly); (5) Check whether the semi-finished paper roll is tight, the diameter and weight meet the product standard requirements, and the two ends are neat (straight
The deviation of the diameter shall not exceed ±1mm, and the weight deviation shall be within ±2);
(6) Whether the width of the glue seal of the paper ball meets the standard (package standard is 10mm-15mm), the penetration of glue
No more than 3 single-layer papers;
(7) Do not arbitrarily tamper with the inverter, programmed wiring and settings in the electric box; (8) Non-operator operators must not let the machine operate without the consent of the supervisor;
Third,. After the above steps are checked normally, Slowly speed up to normal operation.
Rewinder mechanical structure and control process ---
Second, the main structure of the winder
2.3 Rolling Department
1. Stretching device
The stretching device of the rewinder is set to keep the paper web slit after slitting. In some paper cutting knives, the stretcher is also used. The main function is to eliminate the texture and slack of the paper web. Mainly, it can maintain the good operation of slitting. There are three types of stretchers that we often use today: D-shaped stretches, curved rollers, and Z-type double-bar stretchers.
2, support roller
The backup roll is mainly used to support the paper roll, which is composed of a controlled cast iron roll or a general tube roll. The roller body is mainly cast iron pipe and steel pipe, and its diameter is usually 400-700 mm or more according to the width of the winder. The center-to-center ratio between the rolls of the backup roll should be greater than the roll diameter. Only at such a distance, the roll core does not get caught in the middle of the roll when the support roll begins to curl.
When the winder is running at high speed, in order to avoid vibration during high-speed operation, the design of the backup roller must be minimal when supporting the paper roll. The radius is a function expression of the speed and width of the winder, mainly by allowable The critical speed and the degree of winding are determined because at this time the diameter of the backup roll has less chance of producing a defect in the roll hardness than the small diameter support roll. When coiling coated paper or very thin paper, we should consider using a larger diameter backup roll. On a rewinder with a small width, we generally use a 600mm roll diameter.
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