Hardcover book processing operations - hardcover equipment (2)

2. Hardcover production line process requirements. The hardcover book production linkage line is a semi-finished book block that needs to be machined after being locked by mechanical action, and is processed into a production line of hardcover books through various modeling processes. Compression flattening, cutting, brushing and drying, squeezing round ridges, bonding gauze, backing paper and plug cloth, lining lining, pressure groove forming, and more than a dozen processes to link together for processing a production line.

The hardcover book production line can also be fully started or used on its own as a processing requirement. Although the structure of the machine is somewhat different, the process principle and operation requirements are basically the same, and they are all started from the processing of the semi-finished book block after the sewing line, and until the pressure groove is formed. In the hardcover book production line, in addition to the various single machines that complete various processes, there are also various intermediate connection and transportation devices, such as conveyor turning machines, etc., and the two ends of the production line, such as the automatic book Feeder, automatic Stacker and so on. Figure 3-52 shows the JZX-1 hardcover book production line.

(1) Supply book blocks. The work of supplying the book block is done by the book core machine and is the first processing part of the production line of the hardcover book. The main task is to store the semi-finished book blocks after being locked and store them according to the prescribed positions and tracks for use in the following processes.

(2) Flattened for the first time. The book block is transported by the feeder to the first flattened work position. The first press flattening work is carried out on the back of the transmitted book block, and its main function is to substantially equalize the thickness of the semi-finished book block supplied and delivered and the thickness of the book block so that the following molding process can be performed smoothly.

(3) brush dry glue. After the book block is pressed flat for the first time, it is sent to the glue drying device. After the flattening, the glue is the first time that the semi-finished book block is processed. The function of the glue is to bind the bookbinding stitches and the stitches together so that the book block can be initially determined to prevent During the processing of the process, the debonding between the signatures will affect each other and affect the effect of the book block modeling process.

The first time the book block is glued to form a joint, in principle, the required degree of drying can reach 70% to 80%. Otherwise it will affect the effect of the ridge.

(4) Flatten the second time. In order to ensure the smooth processing of the hardcover book and the stability of the quality, the production line of the hardcover book has been flattened twice during processing, and the equipment used is the same as the first press-flattening. The effect of the second flattening of the book block is: after the book is backed by the glue, the width or thickness of the book is the same, and the shape is set flat for cutting or post-stacking and other shapes.

(5) Automatic accumulation. After the book block is pressed by the flattening machine, it is sent to the book stacking machine by the conveying track, so that a book core is stacked to a desired height. The function of stacking of book blocks is used for the automatic book cutting of three-sided cutters. If the processed books are of large thickness or large format, they may not be piled up and may be directly cut by a single book.

(6) Cut books on three sides. The three-side cutter used in the hardcover book production line is basically the same as the general three-side cutter. In order to automatically cut the book and co-produce it with other single machines, an automatic storage form is used in the input book block, ie, the book is automatically fed into the machine. The core is automatically fed into the clipboard to cut the book. After the book is cut, the book block will be launched locally by the pusher and transferred to the next process.

(7) Clip the bookmark ribbon. For hardcover books that require a ribbon for bookmarks, a bookmark ribbon device has been added between the cutter and the rounder. The book blocks that are about to be cut off are divided into books by the divider, and then the ribbons are inserted into the center of the book block by the transmission ribbon device, and the side is stitched. After being cut off, the process of labeling the ribbons is completed by gluing and compacting the top of the head.

(8) Round up the ridge. After the book block has been cut, it will continue to be transported, and it will be turned 90° so that the horizontally placed book block will turn into the ridgeback machine by turning the back up or down. The round ridge is the first round and then the ridge.

The round is formed by a pair of rolling rollers, and the book block is pressed into a relative rotating motion to make the back of the book into a predetermined circular arc shape so that the individual book pages and even the book pages in the whole book core are evenly staggered with each other for easy reading. . The ridge is to make each back of the signature to be deformed and turned to both sides in order to prevent the book block from being deformed after being rounded, and the book with a thick cover is also neat in appearance.

(9) Paste gauze. After the book block passes through the ridge, it enters the second book back brushing process, and then pastes a book back gauze on the back of the book. Its role is: firmly binding book back and book back and book shell adhesion.

(10) Paste the plug cloth and spine paper. After the book block is glued to the gauze, it is immediately sent to the book back brush for three times. After the glue is glued, the plug cloth and spine paper are processed. In order to make the bookbinding more solid, books are beautiful.

(11) Lettering shell (swept bushing). After the hardcover book block is processed, glue is applied on the surface of the two liners of the book block, and then the book shell is pre-prepared. After a certain amount of pressure is applied, the book case is stuck on the book block to complete the cleaning process. operating.

(12) pressure groove molding. The book on the finished shell is pressed through a groove and a forming process to complete the final processing of the hardcover book. Pressure groove is in the front and back of the hard-covered hardcover books and magazines to press out a groove about 3mm wide, in order to protect the book block from deformation, increase the beauty of books. Forming is the use of forming template from the incision of the book to the back of the direction of the pressure, to remove the residual air between the back cover of the upper shell and the book shell, so that the book shell and the book block is more firm and smooth, the book shape is stable, Flat and beautiful.

(13) flip stacking. After the molding of the pressure trough, the books are transferred to the automatic stacking section, and the automatic stacking device staggers and stacks the transferred books into a certain number and then inspects and packages them to complete the entire process of the hardcover linkage line.