For a successful diaper project, robust market demand is a necessary condition, and a stable, reliable diaper production line is a fundamental requirement. Therefore, selecting the right diaper production line and manufacturing materials is a decisive factor. Manufacturers should gain a comprehensive understanding of the current status, manufacturing levels, and research directions in the baby diaper machinery industry. This includes insights into machine structures, configurations, and the selection of appropriate diaper production equipment.
1. Process and Composition of Baby Diapers
Diaper production lines consist of four main processes:
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Forming and Wrapping Process: Involves equipment such as fans, reclaimers, glue machines, crushers, forming drums, transition rollers, flat belts, and conveying mechanisms.
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Full Set Wrapping Process for Absorbent Core: Utilizes equipment like fans, reclaimers, glue machines, pressure rollers, adsorption units, cutters, rubber, tension transition rollers, unwinding mechanisms, transmission shafts, flat belts, etc.
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Installation Process for 3D Leak-Proof Accessories: Includes equipment such as glue machines, body cutting and slitting knives, left and right waistband cutting knives, front waistband cutting knives, arc knives, tail knives, tension transition rollers, etc.
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Finished Product Packaging Process: Involves equipment like first and second-row mouths, blades, stacking machines, three-folders, automatic sorting and packaging machines.
2. Edge Alignment Control System
Diaper production lines use various materials with different elongation rates, making control crucial for speed, position, tension, and deviation of each material. Achieving this ensures stable technical conditions for machine production. An efficient edge alignment control system is essential, with fast, accurate, and stable deviation control. The drive structure and type of alignment system vary based on the material. The controller should adopt a digital control system.
3. Servo Control System
The development and application of servo control systems play a vital role in enabling high-speed, stable completion of multiple functions in high-speed automatic production lines. Servo control systems simplify the mechanism of assembly line machines, facilitating straightforward adjustment of transmission and speed. This reduces friction points, resulting in smoother, quieter, and energy-efficient machine operation. A well-designed servo control system ensures that various functional points of the baby diaper machine complete the designated process functions.
4. Hot Melt Adhesive Machine
Since diapers are composite products with over ten different materials, adhesives are crucial for their assembly. The hot melt adhesive machine is dedicated to providing this function. Key aspects include accurate positioning, optimal adhesive volume, appropriate spraying forms meeting product process requirements, continuous or intermittent time control, optimal melting temperature, adhesive box insulation control, variable frequency control for adhesive pumps, and sensitive, precise control systems for nozzles. The quality and failure rate of the adhesive machine directly impact product quality and stable production.
5. Fluff Pulp Board Shredder
This machine, located at the beginning of the diaper production line, plays a crucial role in tearing fluff pulp boards into fluff status. This ensures that when air conveyed, the fluff pulp adequately lifts and evenly shapes on the forming roller. Therefore, the diaper's absorbent core achieves a lump-free, soft texture. Despite its high power and speed, the machine's significant drawback is the considerable noise it generates. The quality of the shredding blade, material uniformity, and durability are critical factors to ensure a long blade replacement cycle, high-quality fluffing, and low noise production.
In conclusion, for a production line involving multiple functional processes, a full automatic control system combining PLC, touchscreen, servo, and variable frequency is essential. This guarantees stable production, low failure rates, and high product quality. A detailed understanding of diaper production line configurations is crucial for accurate equipment valuation and assessing overall machine competence.
