Reasons, countermeasures and effects of BOPP film slitting quality ---
two. Wrinkles (wrinkles, vertical wrinkles, cross wrinkles, wrinkles)
(2) Causes and countermeasures of longitudinal wrinkles
Longitudinal wrinkles mean that the surface of the film roll forms a circumferential rib line. In the process of slitting, a large amount of air entrapment or cumulative thickness unevenness is the main cause of longitudinal streaks, and it is difficult to eliminate the occurrence of a relatively serious stripe. When the longitudinal wrinkles appear in the slitting process, the tension is reduced and the pressure is applied to discharge the air in the film roll to improve the longitudinal wrinkle problem. However, the adjustment range should consider the impact on wrinkles and other aspects (according to relevant professional information, longitudinal wrinkles One of the reasons is that the slitting speed is too fast, and the film roll is most prone to the quality problem of the longitudinal stripe at high speed, but there is no obvious influence in actual production, which remains to be studied). Another reason for the vertical wrinkles is the influence of the running accuracy of the equipment. For equipment with high requirements for running accuracy, after a long period of continuous use, the running accuracy of some components has decreased. For large slitting machines, it is more difficult to ensure the running accuracy due to the large number of running parts. Moreover, since the plastic film is a polymer product, its thickness is very thin, and it is more susceptible to damage during processing. Therefore, once the running accuracy is insufficient, quality problems such as vertical streaks are likely to occur. For this reason, it should be cautious when replacing equipment parts and accessories. It is advisable to use durable and high-precision parts, and it must also ensure a certain precision during installation. Otherwise, it is difficult to meet the operation requirements of the slitting machine.
The flattening roller flattens the film and eliminates some of the longitudinal wrinkles produced by the film under tensile stress.
(3) Causes and countermeasures of cross wrinkles
In addition to the influence of the parent-rolling factor, the transverse wrinkles of the film are mainly caused by the sag-like transverse wrinkles produced by the loosening of the slit film roll. Generally, the slitting process is effective in reducing the wrinkles and reducing the pressure, and should be effective for different types of products. Adjusting the slitting and pressure can effectively eliminate the occurrence of cross wrinkles.
Slitting machine operation guide ---
3 job responsibilities
3.1 Slicing machine gear duties
3.1.1 Conscientiously abide by the rules and regulations of the company and the production department, and obey the leadership with the monitor.
3.1.2 Proper operation and use of equipment, strict compliance with safe operating procedures, and timely elimination of common faults.
3.1.3 According to the requirements of product quality standards, it is responsible for the quality, consumption, safety and task completion of the machine, and self-inspection and its records.
3.1.4 Responsible for guiding, supervising and managing the work of the machine personnel.
3.1.5 According to the maintenance requirements of the equipment, carefully carry out the maintenance work of the equipment.
3.1.6 Work with the machine personnel to do a good job of cleaning the equipment and the area of ??responsibility.
3.1.7 Carefully carry out the work of handover, and communicate and record the problems existing in the operation of the equipment.
3.1.8 Have the responsibility for care and maintenance of the auxiliary facilities (lighting, emergency lights, tables, chairs, shelves, etc.) belonging to the machine and surrounding.
3.1.9 Complete the other tasks assigned to the squad leader and the superior leader.
3.2 Slitting machine auxiliary duties
3.2.1 Conscientiously abide by the rules and regulations of the company and the production department, obey the management of the vehicle, and strictly abide by the safe operating procedures.
3.2.2 Carefully assist the gear shifter to adjust and troubleshoot the equipment, and timely carry out the sanitary cleaning work within the scope of the equipment responsibility area under its jurisdiction.
3.2.3 Do a good job in preparation before starting the machine, do a good job in paper and product handling, and do a good job in quality self-inspection.
3.2.4 Clean up waste paper, garbage, packaging materials and evacuate the production site in time; cut off the power and air supply of the machine and auxiliary facilities at the end of the work.
3.2.5 Receive raw and auxiliary materials according to the requirements of the gears and do the work and identification of the original and auxiliary materials.
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