As the food processing industry moves toward greater intelligence and flexibility, even minor pain points in the packaging process can become major bottlenecks restricting production efficiency. In March 2026, two utility model patents in China’s food machinery sector were officially authorized by the China National Intellectual Property Administration. These two technologies address long-standing industry challenges—residue in high-viscosity filling and automatic case packing for multi-size cartons—delivering efficient and reliable “Chinese solutions.”

1. Multi-Flavored Sauce Quantitative Filling Equipment，Solving the “Hanging & Dripping” Problem

During the filling process for high-value viscous products such as sauces, pastes, and fillings, “hanging” and “dripping” have long been persistent pain points for food manufacturers. Material residue not only affects filling accuracy but also contaminates packaging surfaces, causes raw material waste, and increases cleaning costs.

Latest Technical Solution: A pressing cylinder and pressure plate are added to the side of the discharge pipe in conventional filling equipment. After filling is completed, the cylinder drives the pressure plate to apply additional force to the residual material inside the pipe, achieving forced discharge and thoroughly eliminating the issues of material hanging and dripping.

Technical Value: This technology fundamentally resolves the long-standing challenges of “hanging” and “dripping” in high-viscosity material filling. The forced discharge design ensures a high degree of consistency in each fill volume, completely eliminating measurement deviations caused by material residue. For high-value products like sauces, this translates into significant reductions in raw material waste and effective cost control. At the same time, packaging surfaces remain free from contamination by dripping, ensuring reliable end-product quality. From a production line operations perspective, the frequency and difficulty of equipment cleaning are significantly reduced, effectively improving overall packaging efficiency while minimizing manual intervention and downtime.

Applicable Scenarios: Automated filling lines for various viscous products including sauces, pastes, fillings, and creamy foods. This technology is particularly well-suited to meet the high standards of packaging cleanliness and precision required in regions such as Southeast Asia, the Middle East, Europe, and the Americas.

2. Flexible Case Packing “All-Rounder”，Automatic Case Packing for Multi-Size Cartons

Conventional automatic case packing equipment is typically designed to accommodate only a single carton size. When manufacturers need to produce products in multiple specifications, they often face frequent changeover downtime and manual assistance for packing—severely limiting production flexibility.

Latest Technical Solution: A multi-stage cylinder linkage design, combined with T-shaped slide rails and guide rods, enables the gripper to move precisely to any position on cartons of varying sizes. This allows for stable automatic packing that adapts to multiple carton sizes without manual adjustment.

Technical Value: This technology delivers true flexible case packing capability, allowing a single packaging line to easily handle production needs for multiple product specifications. Manufacturers no longer need to frequently change fixtures or make manual adjustments for different carton sizes. Changeover time is significantly reduced, and production efficiency is markedly improved. For food companies focused on small-batch, multi-variety orders, this means stronger market responsiveness and lower operational costs. The compact structure, precise control, reliable operation, and easy maintenance of this robotic system effectively lower the barriers to automated equipment adoption, providing a cost-effective solution for enterprises looking to upgrade their packaging operations with intelligent technology.

Applicable Scenarios: Production lines with diverse packaging specifications, such as edible oils, beverages, dairy products, condiments, and snack foods. This solution is an ideal choice for addressing overseas customers’ needs for small-batch, multi-variety production requirements.