Wireless binding machineHow to repair common faults
One, the back of book block milling is bad
1. If the book block is not neat or not placed neatly, it should be ensured that each sheet of paper is placed to the end.
2. When the back milling of the book block is too small, the book holder should be lowered so that the milling depth is 1.5-2.5 mm (small milling cutter).
3. The position of the milling cutter cover is not suitable, and it is not parallel when opened, and the opening is insufficient or too large. The milling cutter cover should be re-installed, or the severely worn cover casters should be replaced.
4. If the milling cutter is damaged or not sharp, it should be replaced with a new milling cutter.
5. The small sharp knife of the chute is too high or too low, the angle is incorrect, the small sharp knife is blunt, adjust the angle of the small sharp knife correctly, and replace the small milling cutter.
2. Uneven gluing on the back of the book
1. The glue between the squeegee surrounding the gluing and the gluing roller The gap is uneven, adjust to make it even.
2. If the position of the squeegee is too high or too low, the height should be adjusted correctly.
3. The upper rubber roller jumps, the one-way bearing is worn, and the bearing is replaced.
4. If the cot does not move, the one-way bearing may be damaged. Replace the bearing.
5. The glue in the glue pot is not fully melted or the temperature of the glue pot is not set properly.
Third, the side glue is not well glued
1. Too much or too little side glue, adjust the gap between the glue roller and the scraping film to 0.5- 0.8mm.
2. If the side glue is too much or too little, adjust the height of the squeegee.
3. Check whether the top roller does not rotate or rotates inflexibly.
Four. Bad upper seal
1. The indentation of the cover is dislocated, and the indentation should be correct.
2. If the cover is skewed, it should be ensured that the cover is placed properly, and the sides of the positioning pins and positioning magnets on both sides should be close to the cover.
3. The cover itself is not flat or cut unevenly.
V. Bad wrapping
1. One end of the book is flat, and one end is arc, the book block clamp (car) is insufficient clamping force, and the book appears during milling The whole core is tilted and moved, and the book block clip is adjusted.
2. Check whether the book block is flat, and whether it is raised or pressed on the table after tightening. This phenomenon is eliminated.
3. One side of the book is straight and the other side is arc, wrap the table splint while tightening and loosening, and calibrate the position of the splint.
4. The back of the book is wrinkled, possibly because the cover is too thin or the book block is poorly milled.
5. The back of the book is wrinkled. It may be that the pressure of the plywood is set too high, or the pressure of the support plate of the package is too large. Carefully check and eliminate the problem.
Six. Degumming and loose pages of the book
1. The depth of the back milling of the book block is not enough, and the pages of the book are not completely milled into a single page, causing the book to be degummed and scattered. page, the milling depth should be increased.
2. The temperature of the hot-melt adhesive is too low, and the poor fluidity and permeability of the glue will cause the book to degumming and loose pages. The temperature of the hot-melt adhesive should be raised to 170-178 degrees.
3. The hot melt adhesive on the back of the book is too thin to cause the book to be degummed and loose. The thickness of the back glue should be controlled, generally controlled at 0.6-2mm.
4. Improper use of hot-melt adhesive model may cause degumming and loose pages of the book. You should choose a hot-melt adhesive that matches the model, season and paper.
5. The inner pages of the book block are too thick, film-coated, or the paper that is not glued at all cannot be used for wireless adhesive binding.
Seven, the back of the book is not square
1. Use a non-sharp back milling cutter to mill the back, causing the back of the book to be out of shape, replace the sharp back milling cutter.
2. The back of the book is not square due to the uneven gluing of the back glue. The gluing mechanism should be adjusted to make the glue on the back glue evenly applied.
3. The back of the book is not square due to improper support and setting mechanism, so the support and setting mechanism should be adjusted.
8. The cover is uneven and the cover line is obvious
1. The amount of side glue is too large, which causes the cover to be uneven and the cover line is obvious. Adjust Glue amount.
2. After the thin cover is covered with film, it will shrink and deform by hot melt adhesive, so the cover should have a certain thickness.
3. The grain direction of the book block paper is perpendicular to the direction of the spine, resulting in poor spine formation and uneven cover distortion.
Maintenance and maintenance method of wireless glue machine
1. The level of operator’s technical level determines the quality of glue machine maintenance, so it is necessary to improve the operator’s skills first. Technical level: For how to improve the technical level, you must first have a basic understanding of the machine structure, a certain maintenance knowledge, and a correct attitude towards machine maintenance. As for the failure of the machine, you should find a professional to solve it, instead of blindly operating without understanding the cause of the machine failure. Therefore, employees should also have corresponding training knowledge, cultivate a strict operating system, and strengthen their awareness of the importance of maintenance. Put an end to improper maintenance methods such as foolishness and recklessness.
2. Apply correct scientific means during maintenance, strengthen regular and quantitative maintenance, so that the machine can be well maintained and the service life can be extended. The maintenance of the plastic binding machine is subject to the instructions, such as regular refueling, cleaning, adjustment of accuracy, etc. In addition, the maintenance of cams, gears, and bearings is more important, because the change of accuracy will lead to a decrease in printing effect; during the maintenance process, if the machine encounters To the fault, can find the repair method of the appropriate machine. Direct savings in repair costs. For maintenance, it is a cyclical and long-term work. Do not do thorough maintenance after purchasing the machine for a long time. You must maintain it carefully according to the above statement until the machine is scrapped.
3. When binding books with hot melt glue, the glue binding master must clean the glue pot regularly, check the heating plate of the glue pot, and ensure that the temperature of the glue pot is constant; otherwise, the heating temperature is inaccurate and it is easy to get high temperature Heating causes the hot melt adhesive to carbonize and lose its viscosity, resulting in poor binding effect and easy degumming.
Declare: The above methods are derived from the program system index or shared by netizens. They are for your reference only and do not represent the research views of this website. sex and authority.
