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Exploring the Cutting System of Plastic Bag Making Machine

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Exploring the Cutting System of Plastic Bag Making Machine

The cutting system of the plastic bag making machine is a symphony of precision engineering, ensuring that every bag produced is up to the highest standards. This system is composed of several integral parts, including the cutter, length adjuster, overrunning clutch, and welding wire adjustment, each playing a crucial role in the bag-making process.


The Cutter


At the heart of the system lies the cutting knife, a floating mechanism that utilizes a movable knife and a sliding guide, pressed by a spring for optimal performance. Adjustable upper and lower knives, along with an adjusting screw, allow for the fine-tuning of the cutting tightness, effectively eliminating difficulties in cutting raw materials.


Bag Making Length Adjuster


The plastic bag making machine offers the flexibility to adjust the bag length by simply changing the position of the connecting rod on the eccentric carriage. This feature, along with the tightening of the handwheel and nut, allows for precise control over bag size.


Overrunning Clutch


The Chinese plastic overrunning clutch is a vital component, with its quality and performance directly impacting the accuracy of product length. Despite its high working frequency and limited service life, regular inspections and maintenance ensure its reliability in production.


Welding and Trimming Distance Adjustment


The ideal distance between the welding line and the cutting line is maintained at 5-10mm. By turning the handwheel on the adjustment frame, the beam roller can be manipulated to achieve the perfect cutting line. The position of the welding wire can also be adjusted for optimal welding wire quality.


Welding Knife Adjustment Method


A simple tissue paper test is used to adjust the welding knife. By placing tissue paper on the support seat and manually turning the handwheel, the tightness of the tissue paper at both ends is balanced, ensuring an even cut.


Automatic Light Control Feeding Device


This innovative device, composed of a servo motor, feeding rubber roller, light-controlled film shutter, and photoelectric tracking machine, ensures consistent film feeding during production. It automatically adjusts the feed rate to maintain optimal production flow.



In conclusion, Bosen's plastic bag making machine exemplifies our dedication to innovation, precision, and efficiency. We invite you to experience the future of plastic bag manufacturing with our state-of-the-art equipment. Join us in revolutionizing the way plastic bags are made.


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