The core structure and working principle of the fully automatic packaging machine
Release time:
2025-09-24
The stable operation of the fully automatic packaging machine relies on the coordinated cooperation of its core components. Its typical structure and working logic are as follows:
1. Core components
Material supply system: including storage hoppers (for temporary storage of materials, some with stirring devices to prevent agglomeration), conveying devices (such as belt conveyors, screw conveyors, to evenly deliver materials to the metering unit); liquid materials are equipped with storage tanks and feed pumps to ensure stable supply.
Metering system: the key component that determines the accuracy of packaging. Different materials require different metering methods - granules/blocks use "weighing (accurate weighing by sensor)" or "volumetric (fixed volume metering cup)", powders use "screw metering (control dosage through screw speed)", and liquids use "piston metering (piston reciprocating to control volume)" or "flow metering (real-time monitoring by flowmeter)".
Packaging Execution System:
Bag-making type: includes a film unwinding mechanism (to control film tension and prevent wrinkles), a former (to fold the film into a preset bag shape), a heat sealing/ultrasonic sealing mechanism (to seal the bag opening by heating or ultrasonic vibration, some with cooling devices to prevent burns), and a cutter assembly (to cut the packaging bag to a preset bag length, with smooth and burr-free cuts);
Prefabricated bag type: including bag storage (for storing prefabricated bags), bag-taking robotic arm (using vacuum suction cups or clamping claws to take bags), bag opening mechanism (using negative pressure or mechanical support to open the bag mouth), and filling nozzle (for accurately injecting material into the bag and preventing external leakage).
Control system: With PLC (Programmable Logic Controller) as the core, it is equipped with a touch screen operation panel, which can preset and store multiple sets of packaging parameters (such as bag length, sealing temperature, metering value, packaging speed), support parameter modification, fault alarm (such as material shortage, film breakage, abnormal sealing temperature), production counting and other functions. Some high-end models can connect to the factory MES system to achieve real-time data upload.
Finished product conveying and sorting system: The packaged finished products are sent to the next process (such as packing and inspection) through conveyor belts. Some models include weight detection devices that automatically reject overweight/underweight finished products to ensure the pass rate.
2. General workflow
Parameter presetting: Operators select the corresponding product formula on the touch screen (or manually set parameters such as packaging speed, metering value, sealing temperature, bag length, etc.);
Material preparation: Add materials into the storage hopper/tank, and perform self-inspection of the equipment (sensors detect whether the materials are sufficient, whether the film/preformed bags are in place, and whether the components are functioning properly);
Automatic operation: After starting the equipment, the system drives various components to work together according to the program - bag making/bag taking → bag opening → metering and filling → sealing → coding (production date, batch number) → bag cutting (bag making type) → finished product conveying → unqualified product removal;
Shutdown and finishing: After the batch is completed, the equipment automatically evacuates residual materials and sends a shutdown signal. The operator cleans the equipment and exports production data (such as total output and pass rate).
Related information
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Contact Person: Mr. Cheng
Tel: +86 18905695228
Email: Mr.song@ahrank.com/Mr.cheng@ahrank.com/Sales@ahrank.com
Company Address: No. 35, Wanyang Zhongchuang Park, Intersection of Shuangdun Roadand Fengting Road, Changfeng County, Hefei City, Anhui Province, China
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