How To Use Packing Machine

This matter has to be broken down into three key stages: first, the precise adjustment of the control panel and PLC parameters, which requires the bag length and temperature to bite into different packaging materials; second, the lightning-fast safety check before turning on the machine, especially the status of the emergency stop switch and sealing knife; and finally, the routine maintenance that needs to be done every day This is the most effective way to prevent unexpected downtime. As long as you can adjust the synchronization of the roll film feeding system and the metering device, the material waste will naturally come down. This is the right way to turn a complex machine into an efficient and automated asset production. At that time, there will be basically no need for workers to interfere, and the return on investment will naturally be beautiful.

PLC Setup And Control Panel Fine-Tuning

Learn to use a packaging machine, the first level is on that digital screen. In modern industrial equipment from Soonqian, all mechanical action logic is driven by a complex set of PLCs.

Each packaging film ——whether it is PE, BOPP or various composite films—— has a completely different tensile coefficient. You can’t expect one parameter to run the world. The operator has to repeatedly adjust the bag length setting in the control panel, especially fine-tuning the photoelectric sensor. Only when the sensor grabs the color scale on the roll film with 100% accuracy will the cut packaging pattern not be crooked.

If you want to seal the mouth tightly, the heat and pressure must be well combined. You have to set the temperature of the cross seal and longitudinal seal according to the thickness of the film. Especially high-yield lines must rely on precise PID Temperature control logic, so that the temperature of the sealing strip is still as stable as Taishan when the machine is running at high speed and heating up.

Ensure Safety Checks And Hard Specifications Before Powering On

In industrial production, safety is always the ballast. Before the machine can be turned, there must be a mandatory pre-inspection process, not only to save the operator’s fingers, but also to save your expensive hardware.

According to SOP standards, the first step is always to test the stop-and-go function. An operator of one occupation must confirm that all security doors are closed and that the PLC does not have any fault alarms. Don’t shield these sensors just to save trouble; accidents that occur during film penetration are often caused by these oversights.

Check the sealing knife to see if there is any residual film or carbonized black residue. Seriously, 90% of seal failures and mechanical wear are actually due to dirty or misaligned blades. Ensuring that the cutter head is clean and in the correct position before starting the machine is the key to ensuring the longevity of the machine.

GDS210B-08

Single-layer PE, PE composite film, paper film and other composite films

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Vertical Packing

Vertical sealing servo, heat sealing servo
cold sealing servo, cutter servo

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DKXL-650

Precision weighing or multi-head scales ensure consistent bag weight, with quality sensors enhancing packaging accuracy.

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WP20

Automatically complete the processes of bag making, measuring, filling, sealing, bag cutting, etc., greatly improving the packaging speed.

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SL400

Versatile granule packaging capability

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SZ180

It is widely used in food, medicine.

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Establishing A Routine Maintenance Plan

Learning to use a machine actually also includes learning how to “serve” it.

The daily maintenance checklist must include: cleaning the forming cylinder, checking the tension of the film reel, and oiling the rotating parts.

Things like heating rods, thermocouples and cutters cannot be replaced after they break. Regular inspection of the wear of these parts can ensure that small problems will not drag into major accidents that will bring down the entire line. Only by keeping an eye on the maintenance calendar can the machine be highly productive for several consecutive years.

Synchronization Technology Of Feeding And Metering

To really play around with the packaging machine, the last level is synchronization. That is, the film feeding system and your metering device must fit together tightly.

If the timing of falling material is not pinched correctly, the material will be clamped at the seal. This not only wastes the membrane but also contaminates the entire batch of product. You have to fine-tune the delay parameters in the PLC to ensure that the material falls exactly the moment the bag is formed.

This simultaneous optimization is the core of the implementation “minimal human intervention”. When feeding, forming and sealing are achieved with a perfect sense of rhythm, the output efficiency of the entire line soars dramatically that the cost of individual packaging bags drops directly.

Author: Mark Chen

I have traveled to over 30 countries to commission hundreds of VFFS and HFFS systems and train production teams. My expertise lies in bridging the gap between complex mechanical engineering and practical floor-level operation. I am passionate about helping business owners transform their machinery into high-efficiency assets through standardized technical procedures and precision maintenance.