Package production process and use and maintenance of balers

At present, many domestic manufacturers are importing packing belt units, producing high-end international standard universal PP packing belt (also suitable for returning materials). Such as the market has such a packing unit, the entire packing unit can use hopper hot air drying, automatic feeding, PID temperature control, frequency control, electronic counting (meters) SUS roller, multi-group double-row sprocket drive, transmission are Built-in, safe and beautiful, no volume on both sides of the volume neat, production reached 2 to 3.0 tons / day.

The following are general production process parameter settings: Extruder barrel temperature is 180°C for the feed section, 210°C for the compression section, 210 to 220°C for the metering section, and 200 to 210°C for the die. After being extruded, it is impregnated with tap water in a cooling bath. It is quenched, then heated in a boiling water bath and rapidly stretched longitudinally under three sets of traction rollers, and the pattern is rolled on the last pair of traction rollers, which are then packaged and shipped from the factory. The last pair of ginning rollers is 5 to 8 times faster than the extrusion line speed. The multiple of stretching must meet the national requirements for the size of the packing tape to adjust the roller speed of the traction roller. If the size is too large or too small, it will affect the fit and use of the plastic packaging tape with the metal jacket.

Packing group packer is a very important equipment in the packing section. It is a relatively high technical content equipment. It is also a very easy to fault equipment. The use of the packing process in the production process is good and bad, and rapid processing occurs. The failure is directly related to the shutdown rate of the packaging segment and the quality of the packaging. So in the process of operating the baler, we must learn how to use a good strapping machine, and can quickly eliminate the general failure of the baler.

one. Baler use and maintenance

Before the baler must check whether the photocells of the strapping machine components are intact, whether the reflectors are aligned and whether there is dust on them, and if they are not aligned correctly, remove the dust on them. Whether the screws and nuts of the various parts are loose or not should be tightened in time. If there is a phenomenon of missing nails, the repair personnel must be notified to deal with it in time. Check if there is any debris in the conveyor belt. If there is a need to clear it, blow the dust in the conveyor belt with compressed air. Check whether the crankshaft part is short of oil. If it is missing, the crankshaft must be refueled by a trickle method. Usually a small stick of oil is used and slowly dripped onto the shaft. It cannot be poured into the rail with an inverted way. When the belt is slippery, it will not be carried and it will not be tight. During the boot process, if abnormal phenomena are found, such as loud sounds, large vibrations, odors, etc. If they cannot find out, they should stop the automatic baler from calling repair personnel to avoid damage to internal parts. In addition, it also provides the use and maintenance of vacuum packaging machines and binding machines.

Second, the impact of the quality of the strapping on the package quality

During the production process of the packing belt, due to the influence of the density of the incoming materials, equipment failure, and human factors, after the straps are manufactured, the specifications of the straps are not stable, and the following cases often occur. The thickness is uneven and the width is uneven. ,rough surface. In the process of packing, there is a phenomenon that there is no belt, no tight belt, and no cassette. Directly affected the progress of production and the shutdown rate of the packing group. The above general treatment method is to check the cause of the device or the strap first. If the cause of the strap is checked and confirmed, if there is uneven thickness or uneven width, the strapping has a quality problem. It is necessary to cut off the unqualified ones and not to use them. During the trial run, if the tape is played and the tape is not tight, adjust the elastic button on the packing machine until the tape is adjusted to meet the process standard. quasi. Unstable tape quality can also cause difficulties in tape advancement, or can't go straight to tape, and can even cause a cassette phenomenon. If most of a roll of tape does not meet the quality standards, then a new bundle of tests will be conducted.

Third, the elimination of common faults

1. The cigarette packs in the production run directly without playing, or one of them does not play. The photocells and reflectors should be checked for alignment and should be aligned if not aligned correctly. If it is damaged, the electrician should be notified to replace it.

2. The cigarette pack does not play with the tape. The treatment method is to check whether the soldering iron temperature regulator is in the required temperature position, usually the temperature is 300C. Depending on the temperature of the environment, it can be adjusted properly between plus and minus 10C. If the temperature is too high, it will be easy to break after thinning, and the temperature is too low to stick. Check whether the delivery belt is loose or not. In general, if the loosen is a nut, the looseness of the sent belt will cause the belt to slide out to the side and cannot reach the standard position. The cassette is also a very common problem. During the boot process, due to improper operation or the strap is not conformed, it will cause the strap to be stuck in the strap. This necessitates the removal of the belt straps next to the conveyor belts, picks up the straps that are stuck inside, and blows out the remaining inside of the straps and dust with compressed air.

Fourth, change strapping

To change the straps, do not panic, calm and stable. When the straps are still enough to hit 2-3 packs, the straps are removed from the strapping shelf and placed beside them, which has facilitated a certain period of time to replace the newly-changed straps without affecting normal production. After dressing well, wear the tapes in order and kick the remaining front roll, usually the last one. Routine savings, eliminate waste. Then put on the newly replaced strap to complete a tape change process. When the new belt is replaced, there will be looseness and unevenness. The elastic button should be adjusted in time until it is adjusted to meet the process standards. The strapping should be adjusted moderately, too tight and easy to hit the band, too loose and does not meet the process requirements. Must be adjusted to meet the process standards, but also to ensure the success rate of playing.