Bottled wireless binding process failure causes and troubleshooting

Faults and solutions that I often encounter in equipment management and quality management are summarized for reference by peers. The general application of paperback glue automatic production lines in book printing companies lays a solid foundation for the high-speed and automated development of post-press processing, and at the same time, it also promotes the integration of post-press processing machinery into intelligent, digital, and machine, light, and electricity. The direction of development. However, there are still many equipment failures in the binding process, affecting the production cycle and product quality.

Fault: more than one page, less posts, high return rate

In order to ensure quality, the collation machine has automatic detection devices for multiple posts and less posts, and the staff checks the book block before the page layout. Through such repeated inspections, there are basically no major mistakes in the book, such as many posts and few posts. The workshop strictly enforces the system of layer-by-layer checks and the responsibility for the work of each process is fulfilled. This ensures that the book withdrawal rate is less than one-hundredth of a millionth. Five national standards. However, the wireless glue-binding linkage line is generally arranged for two-inch inspection personnel per class to carry out “10-stroke-one-out” inspection of books. For some accidental problems, it is not easy to find, and it is not possible to complete each book after the package is completed. , can be examined in turn. In particular, for 32 copies of the book, if there is a double misprint, there are two copies in the hands of the reader, increasing the book withdrawal rate. Reasons for faults caused by the collation machine include the following two points.

1. The signature detection wheel wear of the ZXJ440 hybrid collation machine or the position of the pick-up teeth of the pick-up wheel is not correct to the working point of the proximity switch.

The working principle is that when the signature turns with the pick-up wheel to the detection pressure wheel and is rolled, if the thickness of the signature is larger or smaller than the adjustment thickness, the signal is transmitted to the detection control box through computer control. The next 10 collator stops the collation and sends the book to the bad book. The detection of its multiple signatures is based on the scrolling of the pickup wheel to read the test roller, and after rolling, through the detection of the lever's lever magnification and the work of the proximity switch, the multi-post signature is removed; the less the signature is. The detection is through the photoelectric switch detection signal, through the computer control, to delete the few posts. Due to long-term rolling of the test roller, the working surface will wear out and lose the leverage amplification effect. The installation position of some pickup rollers will change, and the working contact surface between the tooth decay and the detection pressure roller will change and cannot be detected normally.

Remedy: Refer to ZXJD440A mid-speed flat binding wireless binding linkage nine hole adjustment method, according to the requirements of the manual check the detection position, view the working time of the proximity switch and the displacement signal in the computer, replace the worn detection pressure roller, and then adjust the thickness , to ensure that multiple posts are removed.

2. Set the position of the book on the book chain and the position of the book on the pickup wheel.

It is mainly a large book with 32 copies of the size of the book. It is required to be accurate when it falls. If it falls too late, the previous post will fall on the post of the next post, resulting in multiple posts in the next book. Posts.

Remedy: Move the collection chain back so that the signature falls on the middle of the two dials. And was successfully removed by the dial.