The important part of the heat shrink packaging machine is the heat sealing. Heat sealing requires a suitable temperature, whether it is the change of the operating frequency of the heat sealing knife, or the change of the material and thickness of the plastic film, which will affect the heat sealing temperature and affect the heat sealing effect. Whether it is a hot knife or an aluminum knife, when heat is transferred, it has a close relationship with the degree of heat dissipation, that is, the speed of heat dissipation. When the sealing knife transfers heat to the plastic film, the higher the operating frequency, the faster the heat dissipation. When the temperature of the knife does not reach the melting point of the plastic film, the two-layer film is not melted. Sometimes the temperature on the thermometer is up to standard, but the sealing and cutting is not strong. It may be too fast to dissipate heat. The meter can't reflect it. The reading can't be reduced in a certain time range. The commissioning personnel must be familiar with the use of the heat shrink packaging machine, master the frequency suitable for the machine at room temperature (15-18 degrees), and pay attention to the law under the change of the ambient temperature.
In fact, it is very necessary to master some common sense of operation of the shrink packaging machine. At least zui should pay attention to the following points:
When choosing the location of the heat shrink packaging machine, be sure to choose a well ventilated place, which is good for heat dissipation and prevent overheating of electrical components;
When the package passes through the studio, try to put it in the middle to avoid damaging the heating tube.
The equipment must be inspected before use, to ensure that the vehicle can be driven without any mistakes. If it is used for more than three months, the aging of the wires in the shrinkage room must be checked. If problems are found, they should be replaced in time.
The power supply of the heat shrink packaging machine is generally 380V, the three-phase four-wire, four-pin plug, and the power cord cross-section should be greater than 6mm2. The neutral line must be connected to the machine, otherwise it will not operate; if the device is equipped with 220V power supply, three-pin plug, the power cable cross-section should be greater than 4mm2, the chassis must be grounded reliably, in order to boot operation.
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