Portable handheld sealing machine and control method thereof

Abstract

The invention relates to a portable handheld sealing machine and a control method for the portable handheld sealing machine. The portable handheld sealing machine comprises a sealing machine body, thesealing machine body is provided with a heating body and is further provided with a control circuit board, the control circuit board is provided with a function control circuit and a power control circuit which are in electrical connection with each other, the function control circuit is provided with an output power adjusting switch, and the power control circuit with the heating body. The portable handheld sealing machine can adjust the working current of the heating body through the output power adjusting switch to realize power adjustment of the heating body according to the material, thickness and other actual conditions of packaging bags.

Description

technical field [0001] The invention relates to a packaging bag sealing machine, in particular to a portable hand-held sealing machine and a control method thereof. Background technique [0002] Chinese Patent Document No. CN106628405A disclosed on May 10, 2017 a hand-held sealing machine that can prevent misheating. It sets the pressure contact head assembly in a movable manner to complete the sealing and adjustment functions, wherein, by adjusting the pressure contact head The relative position of the component and the casing can make the contact head and the switch mechanism face to face or stagger. When the face is right, it is in the normal working state; In addition, Chinese Patent Document No. CN206719668U disclosed a portable sealing machine on December 8, 2017, which includes a sealing machine body. The sealing machine body includes a shell, a heating element and a heating control mechanism. In the jaw, the heating control mechanism is arranged on the casing; the c...

AI Technical Summary

Problems solved by technology

[0003] To sum up, the heating element control of the current portable sealing machine only has an on-off function, which cannot better adapt to the sealing needs of plastic packaging bags of different thicknesses and materials; in addition, whether it is a disposable alkaline battery or a rechargeable battery , the output voltage of the battery is affected by the power, so that the heating element works unstable

Take a rechargeable battery-driven sealing machine as an example: when the battery is fully charged, its output voltage is generally slightly higher (higher than 4.2V), which makes the heating element work at superpower, generates a lot of heat, shortens its life, and easily melts through the plastic packaging bag ; For this reason, some manufacturers prevent the above situation by setting the cement resistor in series with the heating element. However, such an operation increases power consumption and reduces the effective application range of the battery power (that is, when the battery power is small, it cannot Drive the heating element to work)

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