Wireless binding package failure and troubleshooting
We are a big printing company in Shenzhen China . We offer all book publications, hardcover book printing, papercover book printing, hardcover notebook, sprial book printing, saddle stiching book printing, booklet printing,packaging box, calendars, all kinds of PVC, product brochures, notes, Children's book, stickers, all kinds of special paper color printing products, game cardand so on.
For more information please visit
http://www.joyful-printing.com. ENG only
http://www.joyful-printing.net
http://www.joyful-printing.org
email: info@joyful-printing.net
The wireless binding process is widely used in books and magazines because of its flatness of the spine, vertical and square of the back of the book, stable amount of the packaged paste, and good appearance quality.
In order to comply with the market requirements of book quality, the use of the wireless binding process has received certain results. However, during the use process, some faults are often encountered, which affects the production efficiency and the quality of the package. For example, when we used the JBB50-B type binding bag to bind 60 g of offset paper book core, the appearance quality of the book back was very unstable. The bookbinding book had uneven "eat glue" and wrinkles in the back of the book. Phenomenon; there is a "dovetail groove" in the back of the book, and there are also problems caused by inconsistent washing and cutting. The occurrence of these failure phenomena seems to be that the thickness of the adhesive is not suitable; the height of the package is improper, the spacing between the front and the back is not the same; the back of the book core is too much or the milling back and the cutter are blunt to deform the milling back. To this end, we have used the method of adjusting the thickness of the adhesive, the spacing of the front and back splints, the height, etc., but did not eliminate the above problems, and even the more chaotic and chaotic, the less decent the back of the book, and the back of the book was even more deformed. So, where is the root of the fault? After many careful observations and careful analysis and research, I finally figured out the exact cause of the problem of wrinkling, book core milling back deformation, cracking, etc. on the milling back box. The machine milling back box is equipped with a fixed plate and a movable guard plate, which prevents the book block from being deformed during milling and cutting when the book back passes between the two plates, ensuring uniformity and stability of the milling back and the cutting groove. . However, since the milling back cutter makes the book core have a certain frictional resistance to the inner side of the "two plates" when milling the back, after a period of use, the inside of the two splints is seriously worn, and the book block cannot be supported to prevent the back milling deformation. After analyzing the situation, we opened the movable plate on the milling back box and found that the inner side of the movable plate and the fixed plate and the corresponding part of the milling back edge showed a small deep curved concave wear. In this regard, by repairing the wear parts on the inner side of the "two plates", the above-mentioned package failures are immediately eliminated, and the back of the book is neatly arranged, and the pages are no longer milled or milled. The quality is better guaranteed.
Through the observation, analysis and elimination of the failure of the package, the author has great inspiration, only to prevent the wear and tear of equipment parts, can better avoid the glue failure. So how do you minimize and reduce equipment wear? In addition to the usual careful maintenance of equipment, reasonable operation and strict technical procedures are also very important. The milling back should be based on the principle of "in-folding" which can cut the book block, and reduce the amount of milling back to reduce the working resistance of the milling back cutter and the grooving cutter, thereby reducing the lower part of the book block to the inside of the fixed plate and the movable guard The friction prevents the sides of the "two plates" from being worn into a concave shape. In addition, the "two plates" spacing should be adjusted. When the book block passes between the fixed plate and the movable guard plate, there is a slight resistance to the degree. When the milling back cutter is working, it will not be adjusted due to the "two plates" spacing. Too large, the chattering friction of the book core milling back causes the inner side of the "two plates" corresponding to the knife edge to wear, which is also the operation essential to ensure the quality of the milling back, prevent the back milling deformation, and promote the quality of the package. It is an important measure to minimize the wear of the two plates and the backing and milling. Minimize the amount of milling back, and help to maintain the sharpness of the milling backing knife and the slotting knife, prevent the deformation of the milling back and stabilize the quality of the package. It can be seen that the correct operation and reasonable process are important to ensure the quality of wireless binding!