Tape slitting machine technical parameters
One: Introduction to tape slitting machine
The slitting machine mainly divides the large-rolled master roll into products of different widths and can check the quality of the product. Its main features are as follows:
1. Unwinding photoelectric correction, high precision; divided into two files: manual and automatic
2, there can be two ways of winding: surface winding and center winding;
3. The unwinding tension adopts automatic tension;
4, round knife cutting, reliable quality, easy to adjust;
5, using the surface center winding, the winding quality is even and stable;
6, the fixed length automatically stops, the length automatically counts the meter;
7, has a trimming device, the edge material is discharged by the fan;
8. Particularly suitable for slitting of narrow strips (insulating materials, mica tapes, films, etc.)
Causes, countermeasures and effects on the quality of BOPP film slitting quality ---
(2) The purpose, method and characteristics of hardness testing
1. OBJECTIVE: The hardness test method provides a quantifiable means for determining the tightness of the film roll and provides a quantifiable basis for the determination.
Some of the product quality characteristics can be quantitative, and some can not be quantified, can only be qualitative. In the past, our judgment on the tightness of the film winding is only based on the hand feeling. The scale of the judgment is difficult to grasp, and the difference between different inspectors Larger. In actual work, when measuring, the non-quantitative characteristics are usually converted into quantifiable substitute quality characteristics, which are used as the basis for evaluation, inspection and assessment. Film roll hardness testing is a means of quantitative control of the main quality characteristics of the slitting under this guiding ideology. However, it is worth emphasizing that not all quality characteristics must be quantified, especially the film as a process material quality characteristic, there are quantitative measurement characteristics, such as thickness, tensile strength, gloss, etc., also have qualitative characteristics, only the process Subjective judgments such as wrinkles, blots, chromatic aberrations, etc.
2. Several characteristics of film roll hardness
1 Different film varieties, the hand tightness is similar but the hardness data is different. This is because the hand roll is used to squeeze the film roll in a certain area of ??the finger, which is a test of one surface, and when the hardness tester is used, it is a The pin point is pressed against the film roll, which is a detection of a point, and there will be differences between the two;
2 different film varieties have different winding hardness requirements, which are based on the characteristics and uses of various films;
3 The tightness and hardness of the film roll are not completely linear. The most sensitive value is between 87 and 95. When the hardness is as low as 85, the rewinding does not affect the hardness. Similarly, when the hardness is high. At 97 o'clock, the effect of rewinding on the film roll hardness is getting smaller and smaller.
4 Winding hardness is a reference index for quantifying the winding tightness. It only reflects a quality characteristic of the film roll surface and does not reflect the fullness of the film roll. Therefore, the key is to effectively control the film roll tightness. The quality of the product used.
Reasons, countermeasures and effects of BOPP film slitting quality ---
two. Wrinkles (wrinkles, vertical wrinkles, cross wrinkles, wrinkles)
With the continuous improvement of slitting technology, the length of wrinkle is becoming less and less, and the products of individual manufacturers have achieved zero wrinkle, which undoubtedly grasps the opportunities in the fierce competition environment. It is worth noting that the wrinkles that we sometimes appear are not caused by the unreasonable setting of the cutting parameters, but because our operators are not responsible for the work, and the film is not attached to the paper tube but is free. After the film is put on the paper tube, it is turned on and cut, and the quality of the wrinkle is artificially created. It must be paid attention to, eliminate the defects of human quality and improve the quality of the product.
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