Slitting Rewinding Machine For Gum Tape

Slitting Rewinding Machine For Gum Tape

Tape slitter setting control:
1. Set the slitting menu according to the type, thickness, length, width, etc. of the film arranged in the slitting plan.
2. Lift the corresponding BOPP film file from the PDF.
3. Set the winding length and width of the film of the corresponding specification.
4. Select the corresponding winding station, adjust the pressure roller arm and pressure roller, and install the paper core of the corresponding specifications.

Slitting Rewinding Machine For Gum Tape

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.

Slitting Rewinding Machine For Gum Tape

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

(iv) Effect of film roll tightness on product quality

(5) Coping methods
1. Reasonable principle: Applicable is reasonable, which means that the cutting operator and the quality inspector are too loose according to the winding/
Too tightly influence the degree of influence on different products, adjust the cutting process reasonably, and reasonably grasp the tightness of the film roll to meet the requirements of the use of film products.
2. Ningsong Motight principle: objective when cutting equipment status, product specifications, film performance characteristics, etc.
When the influence of the condition causes the winding tightness to be in an inappropriate degree, the principle of tightness is generally used, because the problem of over-tightening often makes the film unusable, except for the special requirements.
3. The principle of primary and secondary: it means that in the process of slitting production, small groups should be followed to the interests of large collectives.
The principle of benefiting the interests of the company, avoiding the pursuit of high output and high distribution for the purpose of reducing the quality of cutting, all should be based on product quality, maintaining the German crown film brand as the responsibility, effectively completing various production and quality indicators Effectively serve the enterprise and users, and strive to be the best supplier of film.
4. System Management Principles: Refers to the use of systematic, scientific management methods, practical, theoretical, and empirical
The accumulated cutting control method is compiled, and according to the optimal combination of different types of products, width, winding length, season and other external variables and slitting tension, pressure and other internal variables, the document control management is performed to form an operation guidance document. Minimize the influence of subjective factors, reduce the impact caused by insufficient individual ability or excessive dependence on experience, and continuously supplement, optimize and improve the operation guidance documents to meet the needs of system management.

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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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