1. Line pressing should be clear, line pressing and slot orientation accurate
Different from manual packing, self - coaming equipment has a higher requirement on line pressing and grooving.During the manual packing, the bad factors affecting the natural forming of the coaming box, such as shallow indentation and slotted line, can be corrected manually.But the automatic packing mainly depends on the suction nozzle, the stop bar and the clamp bar to complete the cooperation, does not have the function of forming the correction.Therefore, please make sure that the indentation of the coaming box is clear when the coaming box is processed. When the coaming box is folded and formed, the coaming box is briefly bent, so as to avoid the defects such as broken lines and crow's feet.Other to ensure the slotting and pressure line accuracy, usually slotting or pressure line must not exceed 2mm.In order to make the coaming box stand upright, some foreign coaming box machinery manufacturers have recently developed a technique called pre-crease.The pre-crease skill is to add a pre-folding device to the automatic box pasting machine and pre-fold the first and third lines of the wood.This reduces the resistance to refolding the line and allows the automatic packaging line to more simply erect the coaming box.
2. The gap at the corner of the box should not be too large
There are two methods of sealing autoboxing: glue and tape.Unlike manual "work" type sealing, glue sealing and tape sealing will not seal the corner of the box.If the gap at the corner of the box is too large, the waterproof and moisture resistance of the coaming box will be weakened.In particular, some exported products, the vast majority of them are shipped to the place of delivery through container loading, and in the process of sea flight, the air humidity in the container may be as high as 93%, assuming that the box corner gap is too large, the inside of the product is simply affected by moisture.In general, for self-sealing coaming boxes, the diameter of the corner gap should not exceed 5mm.
3. The surface of the coaming box shall be suitable to seal the box with gelatin
Some brands of box board, because the surface sizing is higher, brief cause tongming tape difficult to adhere to, so that in the product seal, tape briefly spring open, and then can not be useful seal.Generally for the use of wooden board box wood, should be conducted tape inspection.The specific method is: take a sticky moderate tongming tape, paste on the box board, and then pull the tape to make it and the box board respectively, assuming that after the tear off the box board surface layer together, mark this type of box board suitable for tape seal.Assuming simple separation and no damage to the surface of the torn trunk plank, it is indicated that the trunk plank is not suitable for sealing the trunk with tape.
4. The wood surface must have certain roughness
Some automatic Shanghai coaming machines also include an automatic stacking system to stack the finished coaming boxes, but during this process, we found that some coaming boxes with properly high surface smoothness and heavy contents could not be sucked up.The key factor is that the coaming box with high surface smoothness cannot meet the friction force with the wooden base to pick up the coaming box.So in this case we might as well consider choosing a rough surface of the wood to replace.
Degree of 5.
Some beverage packaging such as Pepsi choose to use the method of heat shrinkable film packaging wooden card board, automatic packing production line packaging time through the suction nozzle each time a piece of wood and fold stick to form a card board, and then bottle and seal the shrinkable film.Assuming that the board has a certain degree of bending, suction nozzle will appear a more than one of the shortcomings.For this we must ensure that the die - cut board has a high degree of flatness.
Sometimes the planks after die cutting flatness is very high, but after a period of time the planks are bent.The element is that the relative humidity of the wood storage environment is too high or too low, causing the moisture content of the wood to change, and then constitute the bending deformation of the wood.Normally to flatness beg especially high board, when storing for a long time use clingfilm seal, make its with outside temperature and humidity environment isolation, avoid board to suffer the influence of temperature and humidity environment change next.
6. The pressure line level of the coaming box should be able to meet the folding resistance
Some automatic coaming box machines in the packing, in order to facilitate the inner contents of the box into the plate, usually the coaming box shake cover fold 270.If the folding resistance of lining wood is poor, it may cause wood cracks in the indentation site. Therefore, many factories have set up inspection items for the folding resistance of coaming boxes.The inspection method is to support the coaming box after forming, shake the cover to open and close 270 degrees, reciprocate three times, the board, wood must be no cracks.Different products and different packing machines have different requirements on coaming box plans, skills and precision. When planning coaming boxes, it is necessary to truly understand the customer's internship packing conditions, so as to meet the customer's packing requirements without forming a surplus of quality.