Reasons, countermeasures and effects of BOPP film slitting quality ---
three. Irregular end faces
The end face irregularity refers to the unevenness of the end face which occurs when the film width is constant. The end face is generally in two forms: one is that the end faces are irregularly jagged, and the other is a regular wave-shaped irregularity.
1. Causes and countermeasures for uneven end faces:
1 The cutting parameters are not well adjusted. For example, if the cutting speed and the sheet/pressure are poorly matched, the sheet/pressure curve should be set according to the slitting speed;
2 abnormal vibration of the cutting device, overhaul;
3 divided and unwinding rolls are unbalanced and adjusted;
4 The parameters of the winding arms at both ends are inconsistent, and the force distribution of the winding process affects the flatness of the end face, usually the wavy end faces are not aligned and overhauled;
5 The influence of film properties, such as smoothness, etc., Ts, Pm and other models are more prominent, and the cutting parameters should be set according to different film characteristics;
6 film thickness is uneven;
7 Wrinkling during the slitting process will also cause unevenness of the end face and adjust the flattening film;
8 If the film is too static, improve the electrostatic properties of the film or check if the static eliminator of the slitter is invalid.
Slitting machine operation guide ---
5 handling of abnormal conditions
5.1 Once the quality problem is found in the cutting process, it should be stopped immediately and recorded. The products that cannot be processed should be strictly distinguished, and the label should be marked and reported to the workshop to be handled by the monitor.
5.2 If the abnormal cutting process, abnormal smell, high temperature or sudden failure occurs, the machine should stop immediately. The machine personnel should fill in the “equipment failure repair order” and submit it to the squad leader for confirmation. Also recorded in the production record. 5.3 Timely feedback to the squad leader for problems that cannot be dealt with with quality, equipment, materials, and crafts.
5.4 Equipment failure Machine personnel should actively cooperate with the machine repair to debug, and record the equipment failure, the amount of damage, etc. in the "machine failure debugging consumption table", signed and confirmed by the machine personnel, the shift supervisor, and the machine repair class. The number of equipment faults after on-site confirmation is not included in the consumption assessment.
5.5 When the machine is running, it is strictly prohibited to be unattended.
Domestic cutting machine development status and outlets ---
three. Domestic slitting machine development direction
The development direction of domestic slitting machines should be considered from three aspects:
3. Manufacturing: This is a common problem faced by China's manufacturing industry. Everyone knows that any mechanical equipment, besides being reasonable in design, requires precision in manufacturing, and Chinese manufacturing is lacking in this respect. The manufacturing process is also a weak link. In addition to some general-purpose machine tools, there are some special equipments for manufacturing slitting machines, such as dynamic balancing machines, water cutting machines, etc., due to the manufacturing precision requirements of the slitting machine. High, therefore, some equipment needs to use CNC machine tools to process parts, especially the need to popularize the machining center, so that the processing precision of the equipment that produces the slitting machine can be fundamentally guaranteed.
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