Skotch Tape Slitting Rewinding Machine

Skotch Tape Slitting Rewinding Machine

Maintenance and maintenance of the slitter:
     Before use, the main parts of the automatic slitting machine should be inspected and filled with lubricating oil. When inspecting the disassembly and assembly automatic slitting machine, it is strictly forbidden to use unsuitable tools and unscientific operation methods; every two weeks to the machine Make a comprehensive cleaning and inspection; if the automatic slitting machine is stopped for a long time, all the bright surfaces must be wiped clean, coated with anti-rust oil, and covered with a plastic sleeve to cover the whole machine. If the automatic slitting machine is deactivated for more than 3 months, the anti-rust oil should be covered with moisture-proof paper; after the work is completed, carefully clean the equipment, and wipe the exposed friction surface and add lubricant.

Skotch Tape Slitting Rewinding Machine

Causes, countermeasures and effects on the quality of BOPP film slitting quality ---

One. Winding too loose / too tight
     Among the many factors affecting the quality of product use, the tightness of the film roll is critical, and the tightness control is moderate, which not only ensures the quality of the slitting, but also compensates for the quality defects caused by the film making process, but the tightness of the winding. Improper control will inevitably directly affect the quality of the product. As a metaphor, if we compare the film formation to the process of producing rice, the cutting is the cook of the rice. The quality of the rice is important, but the cooking time can not be sloppy, in the various control indicators of the cutting. The grasp of the tightness of the winding is like grasping the amount of rice water used in the cooking process. The lack of water and water must have a direct impact on the quality of the rice.

(1) Several methods for judging the tightness of winding
1. Acupressure test method: the examiner presses the surface or end face of the film roll by hand to judge
Whether the volume tightness is suitable. This is a commonly used test method. The advantages are fast, intuitive, and highly reliable, but it requires some experience, lack of data support, and difficulty in recording. 2. Hardness measurement method: The hardness is measured by using a durometer, and the data is spoken.
The advantages are scientific, quantitative, convenient recording, and less disputes on judgment differences. The disadvantage is that only the surface of the film roll can be detected, and the facts inside the film roll cannot be reflected.
3. Visual analysis method: judging the film roll by visually changing the color change of the end face of the film roll or the shape of the end face
For the same product, the darker the end face, the tighter the winding, especially at the near paper tube. The tightness of the winding is often black; for the end shape, the star is the best. According to the judgment, the appearance of a single star may be the phenomenon of tightness of the film, and the occurrence of double stars should be caused by the tightness of the film. The advantages of visual methods are fast and accurate, but they can only analyze some individual winding problems, which is not comprehensive enough.
4. Process tapping method: tapping the membrane surface with a rigid object during the slitting and winding process, through the feel
And the sound to judge the tightness of the film roll, this method can track the film winding tightness from the inside to the outside, the accuracy and credibility are higher, but it will damage the film surface and have certain operation. Dangerousness, we have forbidden to use this method to test the tightness of film roll since 2000. This method is currently only suitable for non-conventional occasions such as product development, slitting control analysis.
Although the current tapping method is not allowed, we use a combination of acupressure test, hardness measurement and visual analysis in the daily slitting process. There is sufficient means to accurately determine the tightness of the winding. Judge. Since the hardness test method is less used in the film industry, the time for using this method is also short. The test method is introduced below.

Skotch Tape Slitting Rewinding Machine

Causes, countermeasures and effects on the quality of BOPP film slitting quality ---

(3) Causes of loose/overtightening of the film roll
1. The influence of the cutting parameters (winding sheet / pressure curve setting factors, etc.);
2. Effect of film properties (stiffness, thickness, single/double corona surface, smoothness, static electricity, etc.)
Ringing, the slitting parameters must be set according to the film with different characteristics);
3. The effect of the winding speed (when the winding speed is slower, the more time the slitting process is to discharge the air in the film roll, the tighter the film winding is);
4. Product specifications (width, length, collocation, etc.);
5. The influence of the performance of the slitting equipment (adjustability, stability, operability, etc.);
6. The influence of operational factors (professional level, operational skills, job responsibility, etc., generally expressed in the insertion
7. The quality of the work is wrong, such as poor air-suction, rewinding card head position, poor adjustment, and unwinding roller pressure; The influence of environmental factors (temperature, humidity, etc.);
8. Influencing factors of the appraisal system (Operator considers the appraisal of the secondary processing and rewinding indicators in the workshop, and often adopts the coping method of winding up and not loosening, which is one of the factors that cause the film roll to be over-tightened);

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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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