Detailed explanation of the core sections of Biodegradable Packaging Filling Machine (taking starch-based biodegradable materials as an example), including equipment functions, technical parameters and production processes:
I. Functions of core equipment of the Biodegradable Packaging Filling Machine
1. Powder mixer (mixing system)
Function: Evenly mix corn starch/cassava starch with plasticizer (glycerol), water, and modifier (such as PLA/PBAT) to form a plastic wet material.
Key design:
Paddle stirring: low speed and high shear force to avoid starch granule agglomeration.
Temperature control interlayer: heating to 50-70℃ to promote plasticizer penetration.
Humidity monitoring: real-time adjustment of moisture content (usually 15-25%).
2. Screw feeder (conveying system)
Function: stably convey the mixture to the extruder feed port to avoid bridging and breaking.
Technical points:
Double helix structure: anti-sticking design (Teflon coating or stainless steel polishing).
Variable frequency speed motor: linked with the extruder feed rate, error ±2%.
Tilt angle: 30-45° to optimize conveying efficiency (depending on the height of the plant).
3. Extruder (foaming molding core) of Biodegradable Packaging Filling Machine
Function: to melt and foam starch through high temperature and high pressure to form porous cushioning material.
Core configuration:
Screw segmentation:
Feeding section: deep groove design, fast conveying.
Compression section: heating to 120-160℃, starch plasticization.
Homogenization section: inject foaming agent (such as supercritical CO₂), pressure control 5-15MPa.
Die type:
Round hole die: produce granular fillers (diameter 2-10mm adjustable).
Flat die: produce sheets, which are subsequently cut into strips/net fillings.
Hot Tags: biodegradable packaging filling machine, China biodegradable packaging filling machine manufacturers, suppliers, factory, Cheese Ball Extruded Snack Machine, Puff Ring Snacks Machine, Breakfast Cereals Corn Flakes Machines, Puffed Corn Snacks Making Machines, Corn Extruder Machine, Chocolate Filled Snack Food Production Line
