Precaution of powder packaging machine
I. Safety Precautions (Top Priority)
Personal Protective Equipment: Operators must wear appropriate personal protective equipment, such as dust masks, safety glasses, work caps, and gloves, to prevent dust inhalation and contact.
Electrical Safety:
The equipment must be reliably grounded to prevent static electricity buildup (powder environments easily generate static electricity).
Non-professional maintenance personnel are strictly prohibited from opening the electrical control cabinet, touching the wiring terminals, or modifying the circuit.
When cleaning, ensure the equipment power is completely turned off and the main switch is disconnected to prevent electric shock.
Mechanical Safety:
While the powder packaging machine is running, it is strictly forbidden to put hands, tools, or other objects into the areas of moving parts such as the horizontal sealing, vertical sealing, and cutting blades.
Before adjusting molds, changing cutting blades, or performing other operations, always stop the machine first. If necessary, use manual mode for fine-tuning.
The emergency stop button must be clearly visible and readily accessible; press it immediately in case of any abnormality.
Dust Explosion Prevention: If packaging flammable and explosive dust (such as milk powder, coffee powder, or certain chemical powders), the equipment must be equipped with explosion-proof motors, electrical components, and a dust removal system. Ensure good ventilation in the work area and eliminate ignition sources.
II. Pre-Start Preparation and Inspection
Equipment Inspection: Check all machine components (feeding mechanism, bag maker, sealing components, cutter, photoelectric sensor) for integrity, cleanliness, and absence of foreign objects. Ensure screws are tight and transmission components are well lubricated.
Consumables Installation: Correctly install the packaging film roll, confirming the film roll direction (pattern orientation) and appropriate tension. Check that the date and batch number printing devices (ribbon, lettering) are clear and sufficient.
Parameter Settings: Accurately set the parameters on the control panel according to the production task for the shift:
Packaging Dimensions: Bag length, bag width.
Weight/Capacity: Set the target filling amount.
Temperature: Set appropriate horizontal and vertical sealing temperatures according to the packaging material (e.g., PET/PE composite film). Too low a temperature will result in a weak seal, while too high a temperature may cause burn-through.
Speed: Start at a low speed and gradually adjust to a stable speed.
Material Preparation: Ensure the powder to be packaged is dry, uniform, and free of lumps. Check that the hopper is full of material and that the feeding screw or filling cup is free of foreign objects.
III. Key Operating Points During Operation
Empty Bag Trial Run: Before formal feeding, run several empty bags to check the bag forming, sealing appearance, cutter position, and the accuracy of photoelectric tracking (color mark).
First Piece Inspection: The first 10-20 products produced must undergo strict inspection:
Sealing Quality: Check for flatness, firmness, no wrinkles, and no leakage.
Packaging Weight: Use an electronic scale to randomly check if it is within the allowable error range.
Appearance: Check if the pattern position is correct, if the date printing is clear, and if the bag shape is aesthetically pleasing.
Mass production can only begin after confirming that the product is qualified.
Process Monitoring: Operators should periodically (e.g., every 15-30 minutes) randomly check the product weight, sealing quality, and appearance, and record the results. Closely monitor equipment operating sounds, temperature, and material feeding; adjust or stop the machine immediately if any abnormalities are found.
Material Monitoring: Maintain a certain level of material in the hopper to prevent material interruption or bridging. For hygroscopic powders, pay attention to the impact of ambient humidity.
Speed Matching: Packaging speed should be matched with filling accuracy and sealing cooling time. Avoid blindly increasing the speed, which may lead to weak seals or inaccurate measurement.