Automatic Melamine Tableware Edge Grinding Machine For Bowl Plate Polishing

This automatic melamine tableware edge grinding and polishing machine is essential post-processing equipment in the melamine tableware production line. It is specially developed to remove flash, burrs and sharp edges from hot-pressed melamine semi-finished products such as bowls, plates, dishes, trays and children's tableware.

After melamine tableware comes out of the hydraulic molding press, the rim usually has residual flash and sharp edges. This machine completes multi-stage grinding automatically, turning rough edges into smooth, rounded, safe edges that meet food tableware standards. It works perfectly with the melamine press machine, high-frequency preheating machine, automatic weighing machine and dust collector to form a complete automated production line.

Adopting PLC intelligent control and a multi-station continuous grinding structure, the equipment greatly reduces manual dependence, stabilizes polishing consistency, lowers the defective rate and improves hourly output. It is widely favored by new melamine factories and manufacturers upgrading production capacity. It supports round, square, oval and special-shaped melamine tableware, with flexible fixture customization for different product sizes.

• Multi-stage combined grinding process: Configurable with 2, 3 or 4 grinding stations, including coarse grinding, fine grinding and wax polishing. Coarse grinding quickly removes large burrs and flash; fine grinding optimizes edge flatness; wax polishing improves edge gloss, realizing one-time smooth rounding.
• PLC touch screen control system: Operators can store multiple sets of grinding parameters for different products and adjust grinding speed, pressure, processing time and rotation track. Parameter recall is one-click, easy to learn and operate, reducing the requirement for skilled workers.
• Built-in matched dust collection interface: Connect with an industrial dust collector to absorb melamine powder and grinding debris during operation, keeping the workshop clean, reducing dust pollution and protecting workers' health in line with factory environmental protection requirements.
• Flexible fixture design with fast changeover: Customized positioning fixtures for bowls, plates, trays and irregular tableware. The quick replacement structure shortens mold switching time, allowing one machine to produce multiple tableware styles and enrich the product portfolio.
• Stable mechanical structure and precision positioning: The frame adopts a thick welded steel structure that resists vibration and deformation during long-time continuous operation. Vacuum suction or mechanical clamping ensures stable positioning, avoiding displacement and uneven grinding.
• Adjustable grinding speed and pressure: Adaptive processing for thin and thick melamine products. Prevents over-grinding, edge collapse or insufficient polishing, ensuring a uniform edge effect for every piece.
• Complete safety protection configuration: Equipped with an emergency stop button, safety cover, overload protection and abnormal alarm. The machine stops automatically in case of jamming or overload, effectively avoiding operation accidents.
• High efficiency and labor saving: Replaces traditional manual polishing, greatly improving hourly output and reducing labor cost. Finished edge consistency is far better than manual operation, helping products pass food safety inspection and dishwasher testing.
• Low maintenance cost: The key grinding heads and transmission parts are made of wear-resistant materials. Spare parts are easy to purchase and replace, with a low failure rate for long-time continuous running.

After the melamine tableware is hot-pressed and demolded from the molding press, it enters the grinding procedure:

1. Feeding: Workers place semi-finished melamine tableware into the feeding station, or the machine is matched with an automatic feeding mechanism.
2. Positioning & clamping: The fixture or vacuum chuck automatically fixes the tableware accurately to avoid shaking during grinding.
3. Multi-stage grinding: The grinding heads run along the preset edge track. First, coarse grinding removes flash and large burrs; then fine grinding smooths the edge; finally, wax polishing enhances gloss.
4. Discharging: After all grinding procedures are finished, the fixture releases the product and the finished tableware is sent to the discharging area.
5. Subsequent process: The polished tableware can go through decal hot transfer, secondary pressing, inspection and packing. All grinding tracks, speeds and pressures are pre-programmed in the PLC, so every batch keeps consistent edge quality.

This grinding machine is the core post-polishing equipment for food-grade A5 melamine tableware factories. It is widely used for household melamine bowls and plates, children's melamine tableware, restaurant and hotel dinnerware, snack trays, melamine spoons and catering tableware.

It is perfectly matched with the whole melamine production line: automatic weighing machine, high-frequency melamine preheating machine, hydraulic melamine molding press, melamine mold, dust collector and decal hot transfer equipment. It is suitable for both small batch trial production and large-scale mass production.

The machine is cleaned and fixed internally before packing. It is wrapped with stretch film and packed in an export fumigated wooden case. The case is reinforced with steel angles and internal screw fixing to prevent shaking, collision and deformation during long sea transportation. Both FCL and LCL shipments are supported, and shipping marks can be applied according to customer requirements.

• One-year warranty for the main body; quick-wear parts are not included in the warranty.
• Complete operation manual, electrical drawing and operation video supplied.
• Online technical support for troubleshooting, 24 hours a day, 7 days a week.
• Long-term supply of spare parts at factory cost price.
• Customized fixture, grinding head and technical upgrade services are available.