Paperback binding process

1. Requirements for quality standards for paperback binding

1. Quality standard requirements for cover of handmade bag

(1) Check the sample book before packing to prevent Zhang Guanli Dai.

(2) According to the cover paper quality, book paper quality and thickness, choose the appropriate adhesive and viscosity to ensure that the blood seal and the book block are firmly bonded.

(3) Apply the adhesive uniformly, the width of the adhesive mouth should not exceed 8mm, and it should be applied neatly and without skew, and there should be no streaking marks and sticky characters.

(4) The cover of the package should be tightly packed, square, and neat, without overflowing glue; the back of the book should not be skewed in the center. The tolerance standard: the thickness of the booklet below 25mm is 1 / 10mm, and the thickness above 25mm shall not exceed 2.5mm.

2. Requirements for quality standards before folding

(1) The folded front opening is neat and compact without distortion;

(2) The tolerance of the front mouth after folding is ± 1mm.

3. Quality standard requirements

(1) According to the paper quality of the seal, adjust the temperature of the ironing machine correctly;

(2) Adjust the upper pressure and the clamping degree of the side clamp bookboard according to the book width (of the book) and the actual height of a stack of books;

(3) The back of the book is flat and firm after ironing, and there is no phenomenon of wrinkling and sticking of the cover on the empty back;

(4) The back of the book is hot, the back of the book is straight, and the post line does not exceed 1mm.

4. Wireless adhesive ordering machine quality standard requirements

(1) 2 hours before starting the machine: the amount of glue used is stored and preheated, and the colloid can only be put into the working glue pot after it has reached the preheating temperature.

(2) The working temperature of EVA hot-melt adhesive should be adjusted according to the specified range of its technical parameters, with a tolerance of ± 5 ℃.

(3) The storage book is neat and correct, the milling back depth is 2.5 ± 0.5mm, the milling is through milling, and the skew tolerance is ± 1mm.

(4) The width of the side glue is 3-7mm (without indentation 3mm, indentation 7mm), the indentation is accurate, and the tolerance is ± 1mm; the thickness of the back of the book is uniform, and the thickness of the glue layer is 0.6 to 1.2mm.

(5) The shape of the book cover is flat and correct after the cover, and the line does not exceed 1mm.

(6) After the book is finalized, the back of the book is straight and firm, without wrinkles, empty pages, broken gel, etc.

5. Requirements for quality standards of wireless glue binding production line

(1) Collating machine part

â‘ Check the sample books before matching, to prevent serialization, and to ensure that the booklet is correct; wrong posting rate: 0.05% in the factory; less than 0.01% outside the factory.

â‘¡The order of storing posts is correct, and check the errors, such as wrong post, string version, white version, folded corner, set post, and big run version of the previous process.

â‘¢ The storage post is smooth, and the uneven post should be adjusted and then put into the storage post bucket; the storage post should not be too high, subject to the front file regulations of the storage post, the maximum is not more than 150mm;

â‘£The error storage rate is more than 15 working days per month (calculated as 8 hours per working day), and the number of error storages per month does not exceed 3 times.

(2) Host part

① 2 hours before starting, store the rubber material according to the amount and preheat it. After the preheating of the colloid is qualified (the preheated glue temperature is the same as the used glue temperature or slightly higher than 5 ℃ -10 ℃), it can be input into the working glue pot Use; glue without preheating is strictly prohibited to be put directly into the work glue pot for use.

②When using hot-melt adhesive (EVA), the temperature of the adhesive must be adjusted according to its technical parameters (tolerance ± 5 ℃). In special cases, the tolerance is ± 10 ℃.

â‘¢Before starting the machine, check whether the cover is consistent with the book block to prevent Zhang Guanli from wearing it.

â‘£Check whether the quality of the processing book is qualified at any time during the normal operation of the machine, and stop processing in case of problems. And must strictly abide by the process of completing all adhesive clamping and shaping within the opening time of EVA hot melt adhesive. If there is a temporary shutdown, the book block that is being glued or just finished glue should be taken out, and it is not allowed to stay in use.

⑤Depth of milling back 2.5 ± 0.5. , It is required to be able to mill through to the innermost page of the signature, with neatly milled back and skew tolerance of ± 1mm.

⑥The thickness of the glue applied on the back of the book is 0.6-1.2mm, the thin side of the side glue is even, the width is 3-7mm (the indentation is 7mm), and the skew is ± 1mm.

⑦The indentation is accurate, skewed and the error does not exceed 1mm: the back of the book is centered correctly, and the tolerance standard: the thickness of the booklet is less than 25mm is 1 / 10mm; the tolerance of the booklet above 25mm thickness is not more than 2.5mm.

⑧The book cover and back of the package are flat and without wrinkles, and there are no holes, glue, or pages at both ends. The book block is spread out without a rubber bottom.

⑨ Fold the front mouth of the book, the front edge of the book is neatly trimmed without horseshoes; the edges and corners of the book spine are neat and clear, and the line of the post does not exceed 1mm.

(3) Three-sided book cutter part

① The angle α of the cutter is correct, keep it between 22 degrees and 23 degrees;

②The cutting size is correct and qualified, and the tolerance and skew are not more than ± 1mm;

â‘¢ No broken head, pressure loss, knife flower, even knife, no horseshoe shape at the front mouth.

2. Operation rules of paperback binding equipment

1. Wireless adhesive order machine

(1) Make all preparations before starting, including adding glue, preheating glue, adding lubricating oil, checking whether the main components are normal, and then turning on the machine after the car is operated correctly.

(2) Maintain the smoothness of the oil lines and no loose screws during normal work. Pay attention to observe the operation and stop the inspection and treatment in time if abnormal or other problems are found. Never leave the work position without permission.

(3) Do a good job of cleaning up after the shift, such as scrubbing the clamping plate and cleaning up the work site, etc., and prepare for the next shift.

(4) Clean the glue pot on time. Under normal operating conditions, the pre-glue pot is cleaned once every quarter, and the working glue pot is cleaned once every two weeks to keep the glue pot clean and free of carbonization.

(5) Check the equipment on time. Under normal operating conditions, the single shift (8-12 hours) is checked every two weeks, and the double or triple shift (more than 16 hours) is checked once a week. If problems are found during the inspection, adjust them in time or replace the vulnerable parts.

2. Wireless glue binding production line

(1) Collating machine

â‘ Make all preparations before starting the machine, including adding lubricating oil, and check if the main components are normal;

â‘¡ Give a signal when starting up and running, open the air path after the trial is correct, and then hang the long car and then run normally to complete the book;

â‘¢ In normal collation, spot check the book for errors, stringing and other errors at any time, and observe whether the operation, absorption, and gripping are normal at any time, to ensure that the collating machine smoothly cooperates with the host for production:

â‘£Inspect the equipment on time (the inspection time is the same as the time interval of the host), wipe it clean to ensure the smoothness of the nozzle, and replace the vulnerable parts during the inspection.

(2) Host

â‘ Make all preparations before starting the machine, including storing glue, preheating glue, adjusting temperature, adding lubricating oil, roughly checking whether the main parts are normal, and adjusting the cover on each regulation.

â‘¡ Send signals before starting operation, take care of the cooperation of the front and rear machines, click the car to try to open, and gradually change from slow speed to normal speed.

â‘¢ During normal operation, check whether the booklet is qualified at any time, and ensure that the adhesive clamping and setting work is completed within the opening time, and maintain the normal use of the opening, curing, cooling, and hardening time.

â‘£Control the normal temperature of the glue at any time. It is strictly forbidden to change the use temperature of the glue and store the glue block directly into the working glue pot for use.

⑤ Clean the glue pot on time. The pre-glue pot is cleaned once every quarter (under normal operation); the working glue pot is cleaned once every two weeks to prevent carbonization and it is strictly forbidden to smoke the glue pot.

â‘¥Check the equipment on time, open a shift (8-12 hours) once every two weeks, and open two shifts (more than 16 hours) once a week; during the inspection, check whether the parts are correct and replace them at any time Fragile parts.

(3) Book cutter

â‘ Before starting the machine, make all preparations, such as adding lubricating oil, checking the main parts, whether the cutting rules are correct, whether the cutter head and conveying channel are clean, etc., checking the cutting size, adjusting the rules, and pressure;

â‘¡Send a signal before starting the machine and drive the empty car first. After the empty cut is correct, it can work normally with the host before cutting the book;

â‘¢When there is any uneven book when cutting the book, it should be stopped immediately, and it is strictly forbidden to grab the knife (that is, the method of touching the book with the hand without stopping the treatment);

â‘£ The inspection equipment interval is the same as that of the main unit (please refer to the inspection time of the main unit). During the inspection, check the main components and replace the vulnerable parts.

If the above equipment needs mid-term or overhaul, a mid-term and overhaul application report should be written out. After approval, it should be randomly inspected by a technical worker with the title of senior engineer or above.

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